ARSN-218: support lifecycle noncurrent version transition

.eslintrc

@@ -1,6 +1 @@
-{
+{ "extends": "scality" }
-    "extends": "scality",
-    "parserOptions": {
-        "ecmaVersion": 2020
-    }
-}

.github/workflows/codeql.yaml

@@ -1,25 +0,0 @@
----
-name: codeQL
-
-on:
-  push:
-    branches: [development/*, stabilization/*, hotfix/*]
-  pull_request:
-    branches: [development/*, stabilization/*, hotfix/*]
-  workflow_dispatch:
-
-jobs:
-  analyze:
-    name: Static analysis with CodeQL
-    runs-on: ubuntu-latest
-    steps:
-      - name: Checkout code
-        uses: actions/checkout@v4
-
-      - name: Initialize CodeQL
-        uses: github/codeql-action/init@v3
-        with:
-          languages: javascript, typescript
-
-      - name: Build and analyze
-        uses: github/codeql-action/analyze@v3

.github/workflows/dependency-review.yaml

@@ -1,16 +0,0 @@
----
-name: dependency review
-
-on:
-  pull_request:
-    branches: [development/*, stabilization/*, hotfix/*]
-
-jobs:
-  dependency-review:
-    runs-on: ubuntu-latest
-    steps:
-      - name: 'Checkout Repository'
-        uses: actions/checkout@v4
-
-      - name: 'Dependency Review'
-        uses: actions/dependency-review-action@v4

.github/workflows/tests.yaml

@@ -25,18 +25,18 @@ jobs:
           - 6379:6379
     steps:
     - name: Checkout
-      uses: actions/checkout@v4
+      uses: actions/checkout@v2
-    - uses: actions/setup-node@v4
+    - uses: actions/setup-node@v2
       with:
         node-version: '16'
         cache: 'yarn'
     - name: install dependencies
-      run: yarn install --frozen-lockfile --prefer-offline --network-concurrency 1
+      run: yarn install --frozen-lockfile --prefer-offline
       continue-on-error: true # TODO ARSN-97 Remove it when no errors in TS
     - name: lint yaml
       run: yarn --silent lint_yml
     - name: lint javascript
-      run: yarn --silent lint --max-warnings 0
+      run: yarn --silent lint -- --max-warnings 0
     - name: lint markdown
       run: yarn --silent lint_md
     - name: add hostname
@@ -46,9 +46,7 @@ jobs:
       run: yarn --silent coverage
     - name: run functional tests
       run: yarn ft_test
-    - uses: codecov/codecov-action@v4
+    - uses: codecov/codecov-action@v2
-      with:
-        token: ${{ secrets.CODECOV_TOKEN }}
     - name: run executables tests
       run: yarn install && yarn test
       working-directory: 'lib/executables/pensieveCreds/'
@@ -59,9 +57,9 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - name: Checkout
-      uses: actions/checkout@v4
+      uses: actions/checkout@v2
     - name: Install NodeJS
-      uses: actions/setup-node@v4
+      uses: actions/setup-node@v2
       with:
         node-version: '16'
         cache: yarn
@@ -72,7 +70,7 @@ jobs:
       run: yarn build
       continue-on-error: true # TODO ARSN-97 Remove it when no errors in TS
     - name: Upload artifacts
-      uses: scality/action-artifacts@v4
+      uses: scality/action-artifacts@v2
       with:
         url: https://artifacts.scality.net
         user: ${{ secrets.ARTIFACTS_USER }}

.swcrc

@@ -1,12 +0,0 @@
-{
-  "$schema": "https://swc.rs/schema.json",
-  "jsc": {
-    "parser": {
-      "syntax": "typescript"
-    },
-    "target": "es2017"
-  },
-  "module": {
-    "type": "commonjs"
-  }
-}

documentation/BucketInfoModelVersion.md

@@ -178,83 +178,3 @@ this._serverSideEncryption.configuredMasterKeyId = configuredMasterKeyId || unde
 ### Usage
 
 Used to store the users configured KMS key id
-
-## Model version 15
-
-### Properties Added
-
-```javascript
-this._tags = tags || null;
-```
-
-The Tag Set of a bucket is an array of objects with Key and Value:
-
-```javascript
-[
-    {
-        Key: 'something',
-        Value: 'some_data'
-    }
-]
-```
-
-## Model version 16
-
-### Properties Added
-
-```javascript
-this._capabilities = capabilities || undefined;
-```
-
-For capacity-enabled buckets, contains the following data:
-
-```javascript
-{
-    _capabilities: {
-        VeeamSOSApi?: {
-            SystemInfo?: {
-                ProtocolVersion: String,
-                ModelName: String,
-                ProtocolCapabilities: {
-                    CapacityInfo: Boolean,
-                    UploadSessions: Boolean,
-                    IAMSTS: Boolean,
-                },
-                APIEndpoints: {
-                    IAMEndpoint: String,
-                    STSEndpoint: String,
-                },
-                SystemRecommendations?: {
-                    S3ConcurrentTaskLimit: Number,
-                    S3MultiObjectDelete: Number,
-                    StorageCurrentTasksLimit: Number,
-                    KbBlockSize: Number,
-                }
-                LastModified?: String,
-            },
-            CapacityInfo?: {
-                Capacity: Number,
-                Available: Number,
-                Used: Number,
-                LastModified?: String,
-            },
-        }
-    },
-}
-```
-
-### Usage
-
-Used to store bucket tagging
-
-## Model version 17
-
-### Properties Added
-
-```javascript
-this._quotaMax = quotaMax || 0;
-```
-
-### Usage
-
-Used to store bucket quota

documentation/listingAlgos/delimiter.md

@@ -1,27 +0,0 @@
-# Delimiter
-
-The Delimiter class handles raw listings from the database with an
-optional delimiter, and fills in a curated listing with "Contents" and
-"CommonPrefixes" as a result.
-
-## Expected Behavior
-
-- only lists keys belonging to the given **prefix** (if provided)
-
-- groups listed keys that have a common prefix ending with a delimiter
-  inside CommonPrefixes
-
-- can take a **marker** or **continuationToken** to list from a specific key
-
-- can take a **maxKeys** parameter to limit how many keys can be returned
-
-## State Chart
-
-- States with grey background are *Idle* states, which are waiting for
-  a new listing key
-
-- States with blue background are *Processing* states, which are
-  actively processing a new listing key passed by the filter()
-  function
-
-![Delimiter State Chart](./pics/delimiterStateChart.svg)

documentation/listingAlgos/delimiterMaster.md

@@ -1,45 +0,0 @@
-# DelimiterMaster
-
-The DelimiterMaster class handles raw listings from the database of a
-versioned or non-versioned bucket with an optional delimiter, and
-fills in a curated listing with "Contents" and "CommonPrefixes" as a
-result.
-
-## Expected Behavior
-
-- only lists latest versions of versioned buckets
-
-- only lists keys belonging to the given **prefix** (if provided)
-
-- does not list latest versions that are delete markers
-
-- groups listed keys that have a common prefix ending with a delimiter
-  inside CommonPrefixes
-
-- can take a **marker** or **continuationToken** to list from a specific key
-
-- can take a **maxKeys** parameter to limit how many keys can be returned
-
-- reconciles internal PHD keys with the next version (those are
-  created when a specific version that is the latest version is
-  deleted)
-
-- skips internal keys like replay keys
-
-## State Chart
-
-- States with grey background are *Idle* states, which are waiting for
-  a new listing key
-
-- States with blue background are *Processing* states, which are
-  actively processing a new listing key passed by the filter()
-  function
-
-### Bucket Vformat=v0
-
-![DelimiterMaster State Chart for v0 format](./pics/delimiterMasterV0StateChart.svg)
-
-### Bucket Vformat=v1
-
-For buckets in versioning key format **v1**, the algorithm used is the
-one from [Delimiter](delimiter.md).

documentation/listingAlgos/delimiterVersions.md

@@ -1,33 +0,0 @@
-# DelimiterVersions
-
-The DelimiterVersions class handles raw listings from the database of a
-versioned or non-versioned bucket with an optional delimiter, and
-fills in a curated listing with "Versions" and "CommonPrefixes" as a
-result.
-
-## Expected Behavior
-
-- lists individual distinct versions of versioned buckets
-
-- only lists keys belonging to the given **prefix** (if provided)
-
-- groups listed keys that have a common prefix ending with a delimiter
-  inside CommonPrefixes
-
-- can take a **keyMarker** and optionally a **versionIdMarker** to
-  list from a specific key or version
-
-- can take a **maxKeys** parameter to limit how many keys can be returned
-
-- skips internal keys like replay keys
-
-## State Chart
-
-- States with grey background are *Idle* states, which are waiting for
-  a new listing key
-
-- States with blue background are *Processing* states, which are
-  actively processing a new listing key passed by the filter()
-  function
-
-![DelimiterVersions State Chart](./pics/delimiterVersionsStateChart.svg)

documentation/listingAlgos/pics/delimiterMasterV0StateChart.dot

@@ -1,45 +0,0 @@
-digraph {
-  node [shape="box",style="filled,rounded",fontsize=16,fixedsize=true,width=3];
-  edge [fontsize=14];
-  rankdir=TB;
-
-  START [shape="circle",width=0.2,label="",style="filled",fillcolor="black"]
-  END [shape="circle",width=0.2,label="",style="filled",fillcolor="black",peripheries=2]
-
-  node [fillcolor="lightgrey"];
-  "NotSkippingPrefixNorVersions.Idle" [label="NotSkippingPrefixNorVersions",group="NotSkippingPrefixNorVersions",width=4];
-  "SkippingPrefix.Idle" [label="SkippingPrefix",group="SkippingPrefix"];
-  "SkippingVersions.Idle" [label="SkippingVersions",group="SkippingVersions"];
-  "WaitVersionAfterPHD.Idle" [label="WaitVersionAfterPHD",group="WaitVersionAfterPHD"];
-
-  node [fillcolor="lightblue"];
-  "NotSkippingPrefixNorVersions.Processing" [label="NotSkippingPrefixNorVersions",group="NotSkippingPrefixNorVersions",width=4];
-  "SkippingPrefix.Processing" [label="SkippingPrefix",group="SkippingPrefix"];
-  "SkippingVersions.Processing" [label="SkippingVersions",group="SkippingVersions"];
-  "WaitVersionAfterPHD.Processing" [label="WaitVersionAfterPHD",group="WaitVersionAfterPHD"];
-
-  START -> "SkippingVersions.Idle" [label="[marker != undefined]"]
-  START -> "NotSkippingPrefixNorVersions.Idle" [label="[marker == undefined]"]
-
-  "NotSkippingPrefixNorVersions.Idle" -> "NotSkippingPrefixNorVersions.Processing" [label="filter(key, value)"]
-  "SkippingPrefix.Idle" -> "SkippingPrefix.Processing" [label="filter(key, value)"]
-  "SkippingVersions.Idle" -> "SkippingVersions.Processing" [label="filter(key, value)"]
-  "WaitVersionAfterPHD.Idle" -> "WaitVersionAfterPHD.Processing" [label="filter(key, value)"]
-
-
-  "NotSkippingPrefixNorVersions.Processing" -> "SkippingVersions.Idle" [label="[Version.isDeleteMarker(value)]\n-> FILTER_ACCEPT"]
-  "NotSkippingPrefixNorVersions.Processing" -> "WaitVersionAfterPHD.Idle" [label="[Version.isPHD(value)]\n-> FILTER_ACCEPT"]
-  "NotSkippingPrefixNorVersions.Processing" -> "SkippingPrefix.Idle" [label="[key.startsWith(<ReplayPrefix>)]\n/ prefix <- <ReplayPrefix>\n-> FILTER_SKIP"]
-  "NotSkippingPrefixNorVersions.Processing" -> END [label="[isListableKey(key, value) and\nKeys == maxKeys]\n-> FILTER_END"]
-  "NotSkippingPrefixNorVersions.Processing" -> "SkippingPrefix.Idle" [label="[isListableKey(key, value) and\nnKeys < maxKeys and\nhasDelimiter(key)]\n/ prefix <- prefixOf(key)\n/ CommonPrefixes.append(prefixOf(key))\n-> FILTER_ACCEPT"]
-  "NotSkippingPrefixNorVersions.Processing" -> "SkippingVersions.Idle" [label="[isListableKey(key, value) and\nnKeys < maxKeys and\nnot hasDelimiter(key)]\n/ Contents.append(key, value)\n-> FILTER_ACCEPT"]
-
-  "SkippingPrefix.Processing" -> "SkippingPrefix.Idle" [label="[key.startsWith(prefix)]\n-> FILTER_SKIP"]
-  "SkippingPrefix.Processing" -> "NotSkippingPrefixNorVersions.Processing" [label="[not key.startsWith(prefix)]"]
-
-  "SkippingVersions.Processing" -> "SkippingVersions.Idle" [label="[isVersionKey(key)]\n-> FILTER_SKIP"]
-  "SkippingVersions.Processing" -> "NotSkippingPrefixNorVersions.Processing" [label="[not isVersionKey(key)]"]
-
-  "WaitVersionAfterPHD.Processing" -> "NotSkippingPrefixNorVersions.Processing" [label="[isVersionKey(key) and master(key) == PHDkey]\n/ key <- master(key)"]
-  "WaitVersionAfterPHD.Processing" -> "NotSkippingPrefixNorVersions.Processing" [label="[not isVersionKey(key) or master(key) != PHDkey]"]
-}

documentation/listingAlgos/pics/delimiterMasterV0StateChart.svg

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index.ts

@@ -1,9 +1,6 @@
 import * as evaluators from './lib/policyEvaluator/evaluator';
 import evaluatePrincipal from './lib/policyEvaluator/principal';
-import RequestContext, {
+import RequestContext from './lib/policyEvaluator/RequestContext';
-    actionNeedQuotaCheck,
-    actionNeedQuotaCheckCopy,
-    actionWithDataDeletion } from './lib/policyEvaluator/RequestContext';
 import * as requestUtils from './lib/policyEvaluator/requestUtils';
 import * as actionMaps from './lib/policyEvaluator/utils/actionMaps';
 import { validateUserPolicy } from './lib/policy/policyValidator'
@@ -28,7 +25,6 @@ import * as objectRestore from './lib/s3middleware/objectRestore';
 import * as lifecycleHelpers from './lib/s3middleware/lifecycleHelpers';
 export { default as errors } from './lib/errors';
 export { default as Clustering } from './lib/Clustering';
-export * as ClusterRPC from './lib/clustering/ClusterRPC';
 export * as ipCheck from './lib/ipCheck';
 export * as auth from './lib/auth/auth';
 export * as constants from './lib/constants';
@@ -43,7 +39,6 @@ export { default as stringHash } from './lib/stringHash';
 export * as db from './lib/db';
 export * as errorUtils from './lib/errorUtils';
 export { default as shuffle } from './lib/shuffle';
-export * as models from './lib/models';
 
 export const algorithms = {
     list: require('./lib/algos/list/exportAlgos'),
@@ -52,15 +47,12 @@ export const algorithms = {
         Skip: require('./lib/algos/list/skip'),
     },
     cache: {
-        GapSet: require('./lib/algos/cache/GapSet'),
-        GapCache: require('./lib/algos/cache/GapCache'),
         LRUCache: require('./lib/algos/cache/LRUCache'),
     },
     stream: {
         MergeStream: require('./lib/algos/stream/MergeStream'),
     },
     SortedSet: require('./lib/algos/set/SortedSet'),
-    Heap: require('./lib/algos/heap/Heap'),
 };
 
 export const policies = {
@@ -70,9 +62,6 @@ export const policies = {
     RequestContext,
     requestUtils,
     actionMaps,
-    actionNeedQuotaCheck,
-    actionWithDataDeletion,
-    actionNeedQuotaCheckCopy,
 };
 
 export const testing = {
@@ -166,6 +155,31 @@ export const storage = {
     utils: require('./lib/storage/utils'),
 };
 
+export const models = {
+    BackendInfo: require('./lib/models/BackendInfo'),
+    BucketInfo: require('./lib/models/BucketInfo'),
+    BucketAzureInfo: require('./lib/models/BucketAzureInfo'),
+    ObjectMD: require('./lib/models/ObjectMD'),
+    ObjectMDLocation: require('./lib/models/ObjectMDLocation'),
+    ObjectMDAzureInfo: require('./lib/models/ObjectMDAzureInfo'),
+    ARN: require('./lib/models/ARN'),
+    WebsiteConfiguration: require('./lib/models/WebsiteConfiguration'),
+    ReplicationConfiguration:
+      require('./lib/models/ReplicationConfiguration'),
+    LifecycleConfiguration:
+        require('./lib/models/LifecycleConfiguration'),
+    LifecycleRule: require('./lib/models/LifecycleRule'),
+    BucketPolicy: require('./lib/models/BucketPolicy'),
+    ObjectLockConfiguration:
+        require('./lib/models/ObjectLockConfiguration'),
+    NotificationConfiguration:
+        require('./lib/models/NotificationConfiguration'),
+    ObjectMDAmzRestore:
+        require('./lib/models/ObjectMDAmzRestore'),
+    ObjectMDArchive:
+        require('./lib/models/ObjectMDArchive'),
+};
+
 export const pensieve = {
     credentialUtils: require('./lib/executables/pensieveCreds/utils'),
 };

lib/algos/cache/GapCache.ts

@@ -1,363 +0,0 @@
-import { OrderedSet } from '@js-sdsl/ordered-set';
-import {
-    default as GapSet,
-    GapSetEntry,
-} from './GapSet';
-
-// the API is similar but is not strictly a superset of GapSetInterface
-// so we don't extend from it
-export interface GapCacheInterface {
-    exposureDelayMs: number;
-    maxGapWeight: number;
-    size: number;
-
-    setGap: (firstKey: string, lastKey: string, weight: number) => void;
-    removeOverlappingGaps: (overlappingKeys: string[]) => number;
-    lookupGap: (minKey: string, maxKey?: string) => Promise<GapSetEntry | null>;
-    [Symbol.iterator]: () => Iterator<GapSetEntry>;
-    toArray: () => GapSetEntry[];
-};
-
-class GapCacheUpdateSet {
-    newGaps: GapSet;
-    updatedKeys: OrderedSet<string>;
-
-    constructor(maxGapWeight: number) {
-        this.newGaps = new GapSet(maxGapWeight);
-        this.updatedKeys = new OrderedSet();
-    }
-
-    addUpdateBatch(updatedKeys: OrderedSet<string>): void {
-        this.updatedKeys.union(updatedKeys);
-    }
-};
-
-/**
- * Cache of listing "gaps" i.e. ranges of keys that can be skipped
- * over during listing (because they only contain delete markers as
- * latest versions).
- *
- * Typically, a single GapCache instance would be attached to a raft session.
- *
- * The API usage is as follows:
- *
- * - Initialize a GapCache instance by calling start() (this starts an internal timer)
- *
- * - Insert a gap or update an existing one via setGap()
- *
- * - Lookup existing gaps via lookupGap()
- *
- * - Invalidate gaps that overlap a specific set of keys via removeOverlappingGaps()
- *
- * - Shut down a GapCache instance by calling stop() (this stops the internal timer)
- *
- * Gaps inserted via setGap() are not exposed immediately to lookupGap(), but only:
- *
- * - after a certain delay always larger than 'exposureDelayMs' and usually shorter
- *   than twice this value (but might be slightly longer in rare cases)
- *
- * - and only if they haven't been invalidated by a recent call to removeOverlappingGaps()
- *
- * This ensures atomicity between gap creation and invalidation from updates under
- * the condition that a gap is created from first key to last key within the time defined
- * by 'exposureDelayMs'.
- *
- * The implementation is based on two extra temporary "update sets" on top of the main
- * exposed gap set, one called "staging" and the other "frozen", each containing a
- * temporary updated gap set and a list of updated keys to invalidate gaps with (coming
- * from calls to removeOverlappingGaps()). Every "exposureDelayMs" milliseconds, the frozen
- * gaps are invalidated by all key updates coming from either of the "staging" or "frozen"
- * update set, then merged into the exposed gaps set, after which the staging updates become
- * the frozen updates and won't receive any new gap until the next cycle.
- */
-export default class GapCache implements GapCacheInterface {
-    _exposureDelayMs: number;
-    maxGaps: number;
-
-    _stagingUpdates: GapCacheUpdateSet;
-    _frozenUpdates: GapCacheUpdateSet;
-    _exposedGaps: GapSet;
-    _exposeFrozenInterval: NodeJS.Timeout | null;
-
-    /**
-     * @constructor
-     *
-     * @param {number} exposureDelayMs - minimum delay between
-     * insertion of a gap via setGap() and its exposure via
-     * lookupGap()
-     * @param {number} maxGaps - maximum number of cached gaps, after
-     * which no new gap can be added by setGap(). (Note: a future
-     * improvement could replace this by an eviction strategy)
-     * @param {number} maxGapWeight - maximum "weight" of individual
-     * cached gaps, which is also the granularity for
-     * invalidation. Individual gaps can be chained together,
-     * which lookupGap() transparently consolidates in the response
-     * into a single large gap.
-     */
-    constructor(exposureDelayMs: number, maxGaps: number, maxGapWeight: number) {
-        this._exposureDelayMs = exposureDelayMs;
-        this.maxGaps = maxGaps;
-
-        this._stagingUpdates = new GapCacheUpdateSet(maxGapWeight);
-        this._frozenUpdates = new GapCacheUpdateSet(maxGapWeight);
-        this._exposedGaps = new GapSet(maxGapWeight);
-        this._exposeFrozenInterval = null;
-    }
-
-    /**
-     * Create a GapCache from an array of exposed gap entries (used in tests)
-     *
-     * @return {GapCache} - a new GapCache instance
-     */
-    static createFromArray(
-        gaps: GapSetEntry[],
-        exposureDelayMs: number,
-        maxGaps: number,
-        maxGapWeight: number
-    ): GapCache {
-        const gapCache = new GapCache(exposureDelayMs, maxGaps, maxGapWeight);
-        gapCache._exposedGaps = GapSet.createFromArray(gaps, maxGapWeight)
-        return gapCache;
-    }
-
-    /**
-     * Internal helper to remove gaps in the staging and frozen sets
-     * overlapping with previously updated keys, right before the
-     * frozen gaps get exposed.
-     *
-     * @return {undefined}
-     */
-    _removeOverlappingGapsBeforeExpose(): void {
-        for (const { updatedKeys } of [this._stagingUpdates, this._frozenUpdates]) {
-            if (updatedKeys.size() === 0) {
-                continue;
-            }
-            for (const { newGaps } of [this._stagingUpdates, this._frozenUpdates]) {
-                if (newGaps.size === 0) {
-                    continue;
-                }
-                newGaps.removeOverlappingGaps(updatedKeys);
-            }
-        }
-    }
-
-    /**
-     * This function is the core mechanism that updates the exposed gaps in the
-     * cache. It is called on a regular interval defined by 'exposureDelayMs'.
-     *
-     * It does the following in order:
-     *
-     * - remove gaps from the frozen set that overlap with any key present in a
-     *   batch passed to removeOverlappingGaps() since the last two triggers of
-     *   _exposeFrozen()
-     *
-     * - merge the remaining gaps from the frozen set to the exposed set, which
-     *   makes them visible from calls to lookupGap()
-     *
-     * - rotate by freezing the currently staging updates and initiating a new
-     *   staging updates set
-     *
-     * @return {undefined}
-     */
-    _exposeFrozen(): void {
-        this._removeOverlappingGapsBeforeExpose();
-        for (const gap of this._frozenUpdates.newGaps) {
-            // Use a trivial strategy to keep the cache size within
-            // limits: refuse to add new gaps when the size is above
-            // the 'maxGaps' threshold. We solely rely on
-            // removeOverlappingGaps() to make space for new gaps.
-            if (this._exposedGaps.size < this.maxGaps) {
-                this._exposedGaps.setGap(gap.firstKey, gap.lastKey, gap.weight);
-            }
-        }
-        this._frozenUpdates = this._stagingUpdates;
-        this._stagingUpdates = new GapCacheUpdateSet(this.maxGapWeight);
-    }
-
-    /**
-     * Start the internal GapCache timer
-     *
-     * @return {undefined}
-     */
-    start(): void {
-        if (this._exposeFrozenInterval) {
-            return;
-        }
-        this._exposeFrozenInterval = setInterval(
-            () => this._exposeFrozen(),
-            this._exposureDelayMs);
-    }
-
-    /**
-     * Stop the internal GapCache timer
-     *
-     * @return {undefined}
-     */
-    stop(): void {
-        if (this._exposeFrozenInterval) {
-            clearInterval(this._exposeFrozenInterval);
-            this._exposeFrozenInterval = null;
-        }
-    }
-
-    /**
-     * Record a gap between two keys, associated with a weight to
-     * limit individual gap's spanning ranges in the cache, for a more
-     * granular invalidation.
-     *
-     * The function handles splitting and merging existing gaps to
-     * maintain an optimal weight of cache entries.
-     *
-     * NOTE 1: the caller must ensure that the full length of the gap
-     * between 'firstKey' and 'lastKey' has been built from a listing
-     * snapshot that is more recent than 'exposureDelayMs' milliseconds,
-     * in order to guarantee that the exposed gap will be fully
-     * covered (and potentially invalidated) from recent calls to
-     * removeOverlappingGaps().
-     *
-     * NOTE 2: a usual pattern when building a large gap from multiple
-     * calls to setGap() is to start the next gap from 'lastKey',
-     * which will be passed as 'firstKey' in the next call, so that
-     * gaps can be chained together and consolidated by lookupGap().
-     *
-     * @param {string} firstKey - first key of the gap
-     * @param {string} lastKey - last key of the gap, must be greater
-     * or equal than 'firstKey'
-     * @param {number} weight - total weight between 'firstKey' and 'lastKey'
-     * @return {undefined}
-     */
-    setGap(firstKey: string, lastKey: string, weight: number): void {
-        this._stagingUpdates.newGaps.setGap(firstKey, lastKey, weight);
-    }
-
-    /**
-     * Remove gaps that overlap with a given set of keys. Used to
-     * invalidate gaps when keys are inserted or deleted.
-     *
-     * @param {OrderedSet<string> | string[]} overlappingKeys - remove gaps that
-     * overlap with any of this set of keys
-     * @return {number} - how many gaps were removed from the exposed
-     * gaps only (overlapping gaps not yet exposed are also invalidated
-     * but are not accounted for in the returned value)
-     */
-    removeOverlappingGaps(overlappingKeys: OrderedSet<string> | string[]): number {
-        let overlappingKeysSet;
-        if (Array.isArray(overlappingKeys)) {
-            overlappingKeysSet = new OrderedSet(overlappingKeys);
-        } else {
-            overlappingKeysSet = overlappingKeys;
-        }
-        this._stagingUpdates.addUpdateBatch(overlappingKeysSet);
-        return this._exposedGaps.removeOverlappingGaps(overlappingKeysSet);
-    }
-
-    /**
-     * Lookup the next exposed gap that overlaps with [minKey, maxKey]. Internally
-     * chained gaps are coalesced in the response into a single contiguous large gap.
-     *
-     * @param {string} minKey - minimum key overlapping with the returned gap
-     * @param {string} [maxKey] - maximum key overlapping with the returned gap
-     * @return {Promise<GapSetEntry | null>} - result of the lookup if a gap
-     *   was found, null otherwise, as a Promise
-     */
-    lookupGap(minKey: string, maxKey?: string): Promise<GapSetEntry | null> {
-        return this._exposedGaps.lookupGap(minKey, maxKey);
-    }
-
-    /**
-     * Get the maximum weight setting for individual gaps.
-     *
-     * @return {number} - maximum weight of individual gaps
-     */
-    get maxGapWeight(): number {
-        return this._exposedGaps.maxWeight;
-    }
-
-    /**
-     * Set the maximum weight setting for individual gaps.
-     *
-     * @param {number} gapWeight - maximum weight of individual gaps
-     */
-    set maxGapWeight(gapWeight: number) {
-        this._exposedGaps.maxWeight = gapWeight;
-        // also update transient gap sets
-        this._stagingUpdates.newGaps.maxWeight = gapWeight;
-        this._frozenUpdates.newGaps.maxWeight = gapWeight;
-    }
-
-    /**
-     * Get the exposure delay in milliseconds, which is the minimum
-     * time after which newly cached gaps will be exposed by
-     * lookupGap().
-     *
-     * @return {number} - exposure delay in milliseconds
-     */
-    get exposureDelayMs(): number {
-        return this._exposureDelayMs;
-    }
-
-    /**
-     * Set the exposure delay in milliseconds, which is the minimum
-     * time after which newly cached gaps will be exposed by
-     * lookupGap(). Setting this attribute automatically updates the
-     * internal state to honor the new value.
-     *
-     * @param {number} - exposure delay in milliseconds
-     */
-    set exposureDelayMs(exposureDelayMs: number) {
-        if (exposureDelayMs !== this._exposureDelayMs) {
-            this._exposureDelayMs = exposureDelayMs;
-            if (this._exposeFrozenInterval) {
-                // invalidate all pending gap updates, as the new interval may not be
-                // safe for them
-                this._stagingUpdates = new GapCacheUpdateSet(this.maxGapWeight);
-                this._frozenUpdates = new GapCacheUpdateSet(this.maxGapWeight);
-
-                // reinitialize the _exposeFrozenInterval timer with the updated delay
-                this.stop();
-                this.start();
-            }
-        }
-    }
-
-    /**
-     * Get the number of exposed gaps
-     *
-     * @return {number} number of exposed gaps
-     */
-    get size(): number {
-        return this._exposedGaps.size;
-    }
-
-    /**
-     * Iterate over exposed gaps
-     *
-     * @return {Iterator<GapSetEntry>} an iterator over exposed gaps
-     */
-    [Symbol.iterator](): Iterator<GapSetEntry> {
-        return this._exposedGaps[Symbol.iterator]();
-    }
-
-    /**
-     * Get an array of all exposed gaps
-     *
-     * @return {GapSetEntry[]} array of exposed gaps
-     */
-    toArray(): GapSetEntry[] {
-        return this._exposedGaps.toArray();
-    }
-
-    /**
-     * Clear all exposed and staging gaps from the cache.
-     *
-     * Note: retains invalidating updates from removeOverlappingGaps()
-     * for correctness of gaps inserted afterwards.
-     *
-     * @return {undefined}
-     */
-    clear(): void {
-        this._stagingUpdates.newGaps = new GapSet(this.maxGapWeight);
-        this._frozenUpdates.newGaps = new GapSet(this.maxGapWeight);
-        this._exposedGaps = new GapSet(this.maxGapWeight);
-    }
-}

lib/algos/cache/GapSet.ts

@@ -1,366 +0,0 @@
-import assert from 'assert';
-import { OrderedSet } from '@js-sdsl/ordered-set';
-
-import errors from '../../errors';
-
-export type GapSetEntry = {
-    firstKey: string,
-    lastKey: string,
-    weight: number,
-};
-
-export interface GapSetInterface {
-    maxWeight: number;
-    size: number;
-
-    setGap: (firstKey: string, lastKey: string, weight: number) => GapSetEntry;
-    removeOverlappingGaps: (overlappingKeys: string[]) => number;
-    lookupGap: (minKey: string, maxKey?: string) => Promise<GapSetEntry | null>;
-    [Symbol.iterator]: () => Iterator<GapSetEntry>;
-    toArray: () => GapSetEntry[];
-};
-
-/**
- * Specialized data structure to support caching of listing "gaps",
- * i.e. ranges of keys that can be skipped over during listing
- * (because they only contain delete markers as latest versions)
- */
-export default class GapSet implements GapSetInterface, Iterable<GapSetEntry> {
-    _gaps: OrderedSet<GapSetEntry>;
-    _maxWeight: number;
-
-    /**
-     * @constructor
-
-     * @param {number} maxWeight - weight threshold for each cached
-     * gap (unitless). Triggers splitting gaps when reached
-     */
-    constructor(maxWeight: number) {
-        this._gaps = new OrderedSet(
-            [],
-            (left: GapSetEntry, right: GapSetEntry) => (
-                left.firstKey < right.firstKey ? -1 :
-                left.firstKey > right.firstKey ? 1 : 0
-            )
-        );
-        this._maxWeight = maxWeight;
-    }
-
-    /**
-     * Create a GapSet from an array of gap entries (used in tests)
-     */
-    static createFromArray(gaps: GapSetEntry[], maxWeight: number): GapSet {
-        const gapSet = new GapSet(maxWeight);
-        for (const gap of gaps) {
-            gapSet._gaps.insert(gap);
-        }
-        return gapSet;
-    }
-
-    /**
-     * Record a gap between two keys, associated with a weight to limit
-     * individual gap sizes in the cache.
-     *
-     * The function handles splitting and merging existing gaps to
-     * maintain an optimal weight of cache entries.
-     *
-     * @param {string} firstKey - first key of the gap
-     * @param {string} lastKey - last key of the gap, must be greater
-     * or equal than 'firstKey'
-     * @param {number} weight - total weight between 'firstKey' and 'lastKey'
-     * @return {GapSetEntry} - existing or new gap entry
-     */
-    setGap(firstKey: string, lastKey: string, weight: number): GapSetEntry {
-        assert(lastKey >= firstKey);
-
-        // Step 1/4: Find the closest left-overlapping gap, and either re-use it
-        // or chain it with a new gap depending on the weights if it exists (otherwise
-        // just creates a new gap).
-        const curGapIt = this._gaps.reverseLowerBound(<GapSetEntry>{ firstKey });
-        let curGap;
-        if (curGapIt.isAccessible()) {
-            curGap = curGapIt.pointer;
-            if (curGap.lastKey >= lastKey) {
-                // return fully overlapping gap already cached
-                return curGap;
-            }
-        }
-        let remainingWeight = weight;
-        if (!curGap                         // no previous gap
-            || curGap.lastKey < firstKey    // previous gap not overlapping
-            || (curGap.lastKey === firstKey // previous gap overlapping by one key...
-                && curGap.weight + weight > this._maxWeight) // ...but we can't extend it
-           ) {
-            // create a new gap indexed by 'firstKey'
-            curGap = { firstKey, lastKey: firstKey, weight: 0 };
-            this._gaps.insert(curGap);
-        } else if (curGap.lastKey > firstKey && weight > this._maxWeight) {
-            // previous gap is either fully or partially contained in the new gap
-            // and cannot be extended: substract its weight from the total (heuristic
-            // in case the previous gap doesn't start at 'firstKey', which is the
-            // uncommon case)
-            remainingWeight -= curGap.weight;
-
-            // there may be an existing chained gap starting with the previous gap's
-            // 'lastKey': use it if it exists
-            const chainedGapIt = this._gaps.find(<GapSetEntry>{ firstKey: curGap.lastKey });
-            if (chainedGapIt.isAccessible()) {
-                curGap = chainedGapIt.pointer;
-            } else {
-                // no existing chained gap: chain a new gap to the previous gap
-                curGap = {
-                    firstKey: curGap.lastKey,
-                    lastKey: curGap.lastKey,
-                    weight: 0,
-                };
-                this._gaps.insert(curGap);
-            }
-        }
-        // Step 2/4: Cleanup existing gaps fully included in firstKey -> lastKey, and
-        // aggregate their weights in curGap to define the minimum weight up to the
-        // last merged gap.
-        let nextGap;
-        while (true) {
-            const nextGapIt = this._gaps.upperBound(<GapSetEntry>{ firstKey: curGap.firstKey });
-            nextGap = nextGapIt.isAccessible() && nextGapIt.pointer;
-            // stop the cleanup when no more gap or if the next gap is not fully
-            // included in curGap
-            if (!nextGap || nextGap.lastKey > lastKey) {
-                break;
-            }
-            this._gaps.eraseElementByIterator(nextGapIt);
-            curGap.lastKey = nextGap.lastKey;
-            curGap.weight += nextGap.weight;
-        }
-
-        // Step 3/4: Extend curGap to lastKey, adjusting the weight.
-        // At this point, curGap weight is the minimum weight of the finished gap, save it
-        // for step 4.
-        let minMergedWeight = curGap.weight;
-        if (curGap.lastKey === firstKey && firstKey !== lastKey) {
-            // extend the existing gap by the full amount 'firstKey -> lastKey'
-            curGap.lastKey = lastKey;
-            curGap.weight += remainingWeight;
-        } else if (curGap.lastKey <= lastKey) {
-            curGap.lastKey = lastKey;
-            curGap.weight = remainingWeight;
-        }
-
-        // Step 4/4: Find the closest right-overlapping gap, and if it exists, either merge
-        // it or chain it with curGap depending on the weights.
-        if (nextGap && nextGap.firstKey <= lastKey) {
-            // nextGap overlaps with the new gap: check if we can merge it
-            minMergedWeight += nextGap.weight;
-            let mergedWeight;
-            if (lastKey === nextGap.firstKey) {
-                // nextGap is chained with curGap: add the full weight of nextGap
-                mergedWeight = curGap.weight + nextGap.weight;
-            } else {
-                // strict overlap: don't add nextGap's weight unless
-                // it's larger than the sum of merged ranges (as it is
-                // then included in `minMergedWeight`)
-                mergedWeight = Math.max(curGap.weight, minMergedWeight);
-            }
-            if (mergedWeight <= this._maxWeight) {
-                // merge nextGap into curGap
-                curGap.lastKey = nextGap.lastKey;
-                curGap.weight = mergedWeight;
-                this._gaps.eraseElementByKey(nextGap);
-            } else {
-                // adjust the last key to chain with nextGap and substract the next
-                // gap's weight from curGap (heuristic)
-                curGap.lastKey = nextGap.firstKey;
-                curGap.weight = Math.max(mergedWeight - nextGap.weight, 0);
-                curGap = nextGap;
-            }
-        }
-        // return a copy of curGap
-        return Object.assign({}, curGap);
-    }
-
-    /**
-     * Remove gaps that overlap with one or more keys in a given array or
-     * OrderedSet. Used to invalidate gaps when keys are inserted or deleted.
-     *
-     * @param {OrderedSet<string> | string[]} overlappingKeys - remove gaps that overlap
-     * with any of this set of keys
-     * @return {number} - how many gaps were removed
-     */
-    removeOverlappingGaps(overlappingKeys: OrderedSet<string> | string[]): number {
-        // To optimize processing with a large number of keys and/or gaps, this function:
-        //
-        // 1. converts the overlappingKeys array to a OrderedSet (if not already a OrderedSet)
-        // 2. queries both the gaps set and the overlapping keys set in a loop, which allows:
-        //    - skipping ranges of overlapping keys at once when there is no new overlapping gap
-        //    - skipping ranges of gaps at once when there is no overlapping key
-        //
-        // This way, it is efficient when the number of non-overlapping gaps is large
-        // (which is the most common case in practice).
-
-        let overlappingKeysSet;
-        if (Array.isArray(overlappingKeys)) {
-            overlappingKeysSet = new OrderedSet(overlappingKeys);
-        } else {
-            overlappingKeysSet = overlappingKeys;
-        }
-        const firstKeyIt = overlappingKeysSet.begin();
-        let currentKey = firstKeyIt.isAccessible() && firstKeyIt.pointer;
-        let nRemoved = 0;
-        while (currentKey) {
-            const closestGapIt = this._gaps.reverseUpperBound(<GapSetEntry>{ firstKey: currentKey });
-            if (closestGapIt.isAccessible()) {
-                const closestGap = closestGapIt.pointer;
-                if (currentKey <= closestGap.lastKey) {
-                    // currentKey overlaps closestGap: remove the gap
-                    this._gaps.eraseElementByIterator(closestGapIt);
-                    nRemoved += 1;
-                }
-            }
-            const nextGapIt = this._gaps.lowerBound(<GapSetEntry>{ firstKey: currentKey });
-            if (!nextGapIt.isAccessible()) {
-                // no more gap: we're done
-                return nRemoved;
-            }
-            const nextGap = nextGapIt.pointer;
-            // advance to the last key potentially overlapping with nextGap
-            let currentKeyIt = overlappingKeysSet.reverseLowerBound(nextGap.lastKey);
-            if (currentKeyIt.isAccessible()) {
-                currentKey = currentKeyIt.pointer;
-                if (currentKey >= nextGap.firstKey) {
-                    // currentKey overlaps nextGap: remove the gap
-                    this._gaps.eraseElementByIterator(nextGapIt);
-                    nRemoved += 1;
-                }
-            }
-            // advance to the first key potentially overlapping with another gap
-            currentKeyIt = overlappingKeysSet.lowerBound(nextGap.lastKey);
-            currentKey = currentKeyIt.isAccessible() && currentKeyIt.pointer;
-        }
-        return nRemoved;
-    }
-
-    /**
-     * Internal helper to coalesce multiple chained gaps into a single gap.
-     *
-     * It is only used to construct lookupGap() return values and
-     * doesn't modify the GapSet.
-     *
-     * NOTE: The function may take a noticeable amount of time and CPU
-     * to execute if a large number of chained gaps have to be
-     * coalesced, but it should never take more than a few seconds. In
-     * most cases it should take less than a millisecond. It regularly
-     * yields to the nodejs event loop to avoid blocking it during a
-     * long execution.
-     *
-     * @param {GapSetEntry} firstGap - first gap of the chain to coalesce with
-     * the next ones in the chain
-     * @return {Promise<GapSetEntry>} - a new coalesced entry, as a Promise
-     */
-    _coalesceGapChain(firstGap: GapSetEntry): Promise<GapSetEntry> {
-        return new Promise(resolve => {
-            const coalescedGap: GapSetEntry = Object.assign({}, firstGap);
-            const coalesceGapChainIteration = () => {
-                // efficiency trade-off: 100 iterations of log(N) complexity lookups should
-                // not block the event loop for too long
-                for (let opCounter = 0; opCounter < 100; ++opCounter) {
-                    const chainedGapIt = this._gaps.find(
-                            <GapSetEntry>{ firstKey: coalescedGap.lastKey });
-                    if (!chainedGapIt.isAccessible()) {
-                        // chain is complete
-                        return resolve(coalescedGap);
-                    }
-                    const chainedGap = chainedGapIt.pointer;
-                    if (chainedGap.firstKey === chainedGap.lastKey) {
-                        // found a single-key gap: chain is complete
-                        return resolve(coalescedGap);
-                    }
-                    coalescedGap.lastKey = chainedGap.lastKey;
-                    coalescedGap.weight += chainedGap.weight;
-                }
-                // yield to the event loop before continuing the process
-                // of coalescing the gap chain
-                return process.nextTick(coalesceGapChainIteration);
-            };
-            coalesceGapChainIteration();
-        });
-    }
-
-    /**
-     * Lookup the next gap that overlaps with [minKey, maxKey]. Internally chained
-     * gaps are coalesced in the response into a single contiguous large gap.
-     *
-     * @param {string} minKey - minimum key overlapping with the returned gap
-     * @param {string} [maxKey] - maximum key overlapping with the returned gap
-     * @return {Promise<GapSetEntry | null>} - result of the lookup if a gap
-     *   was found, null otherwise, as a Promise
-     */
-    async lookupGap(minKey: string, maxKey?: string): Promise<GapSetEntry | null> {
-        let firstGap: GapSetEntry | null = null;
-        const minGapIt = this._gaps.reverseLowerBound(<GapSetEntry>{ firstKey: minKey });
-        const minGap = minGapIt.isAccessible() && minGapIt.pointer;
-        if (minGap && minGap.lastKey >= minKey) {
-            firstGap = minGap;
-        } else {
-            const maxGapIt = this._gaps.upperBound(<GapSetEntry>{ firstKey: minKey });
-            const maxGap = maxGapIt.isAccessible() && maxGapIt.pointer;
-            if (maxGap && (maxKey === undefined || maxGap.firstKey <= maxKey)) {
-                firstGap = maxGap;
-            }
-        }
-        if (!firstGap) {
-            return null;
-        }
-        return this._coalesceGapChain(firstGap);
-    }
-
-    /**
-     * Get the maximum weight setting for individual gaps.
-     *
-     * @return {number} - maximum weight of individual gaps
-     */
-    get maxWeight(): number {
-        return this._maxWeight;
-    }
-
-    /**
-     * Set the maximum weight setting for individual gaps.
-     *
-     * @param {number} gapWeight - maximum weight of individual gaps
-     */
-    set maxWeight(gapWeight: number) {
-        this._maxWeight = gapWeight;
-    }
-
-    /**
-     * Get the number of gaps stored in this set.
-     *
-     * @return {number} - number of gaps stored in this set
-     */
-    get size(): number {
-        return this._gaps.size();
-    }
-
-    /**
-     * Iterate over each gap of the set, ordered by first key
-     *
-     * @return {Iterator<GapSetEntry>} - an iterator over all gaps
-     *   Example:
-     *     for (const gap of myGapSet) { ... }
-     */
-    [Symbol.iterator](): Iterator<GapSetEntry> {
-        return this._gaps[Symbol.iterator]();
-    }
-
-    /**
-     * Return an array containing all gaps, ordered by first key
-     *
-     * NOTE: there is a toArray() method in the OrderedSet implementation
-     * but it does not scale well and overflows the stack quickly. This is
-     * why we provide an implementation based on an iterator.
-     *
-     * @return {GapSetEntry[]} - an array containing all gaps
-     */
-    toArray(): GapSetEntry[] {
-        return [...this];
-    }
-}

lib/algos/heap/Heap.ts

@@ -1,124 +0,0 @@
-export enum HeapOrder {
-    Min = -1,
-    Max = 1,
-}
-
-export enum CompareResult {
-    LT = -1,
-    EQ = 0,
-    GT = 1,
-}
-
-export type CompareFunction = (x: any, y: any) => CompareResult;
-
-export class Heap {
-    size: number;
-    _maxSize: number;
-    _order: HeapOrder;
-    _heap: any[];
-    _cmpFn: CompareFunction;
-    
-    constructor(size: number, order: HeapOrder, cmpFn: CompareFunction) {
-        this.size = 0;
-        this._maxSize = size;
-        this._order = order;
-        this._cmpFn = cmpFn;
-        this._heap = new Array<any>(this._maxSize);
-    }
-
-    _parent(i: number): number {
-        return Math.floor((i - 1) / 2);
-    }
-
-    _left(i: number): number {
-        return Math.floor((2 * i) + 1);
-    }
-
-    _right(i: number): number {
-        return Math.floor((2 * i) + 2);
-    }
-
-    _shouldSwap(childIdx: number, parentIdx: number): boolean {
-        return this._cmpFn(this._heap[childIdx], this._heap[parentIdx]) as number === this._order as number;
-    }
-
-    _swap(i: number, j: number) {
-        const tmp = this._heap[i];
-        this._heap[i] = this._heap[j];
-        this._heap[j] = tmp;
-    }
-
-    _heapify(i: number) {
-        const l = this._left(i);
-        const r = this._right(i);
-        let c = i;
-
-        if (l < this.size && this._shouldSwap(l, c)) {
-            c = l;
-        }
-
-        if (r < this.size && this._shouldSwap(r, c)) {
-            c = r;
-        }
-
-        if (c != i) {
-            this._swap(c, i);
-            this._heapify(c);
-        }
-    }
-
-    add(item: any): any {
-        if (this.size >= this._maxSize) {
-            return new Error('Max heap size reached');
-        }
-
-        ++this.size;
-        let c = this.size - 1;
-        this._heap[c] = item;
-
-        while (c > 0) {
-            if (!this._shouldSwap(c, this._parent(c))) {
-                return null;
-            }
-
-            this._swap(c, this._parent(c));
-            c = this._parent(c);
-        }
-
-        return null;
-    };
-
-    remove(): any {
-        if (this.size <= 0) {
-            return null;
-        }
-
-        const ret = this._heap[0];
-        this._heap[0] = this._heap[this.size - 1];
-        this._heapify(0);
-        --this.size;
-
-        return ret;
-    };
-
-    peek(): any {
-        if (this.size <= 0) {
-            return null;
-        }
-
-        return this._heap[0];
-    };
-}
-
-export class MinHeap extends Heap {
-    constructor(size: number, cmpFn: CompareFunction) {
-        super(size, HeapOrder.Min, cmpFn);
-    }
-}
-
-export class MaxHeap extends Heap {
-    constructor(size: number, cmpFn: CompareFunction) {
-        super(size, HeapOrder.Max, cmpFn);
-    }
-} 
-

lib/algos/list/Extension.js

@@ -1,6 +1,6 @@
 'use strict'; // eslint-disable-line strict
 
-const { FILTER_ACCEPT, SKIP_NONE } = require('./tools');
+const { FILTER_SKIP, SKIP_NONE } = require('./tools');
 
 // Use a heuristic to amortize the cost of JSON
 // serialization/deserialization only on largest metadata where the
@@ -92,26 +92,21 @@ class Extension {
      * @param {object} entry - a listing entry from metadata
      *                         expected format: { key, value }
      * @return {number} - result of filtering the entry:
-     *                    FILTER_ACCEPT: entry is accepted and may or not be included
+     *                    > 0: entry is accepted and included in the result
-     *                                   in the result
+     *                    = 0: entry is accepted but not included (skipping)
-     *                    FILTER_SKIP: listing may skip directly (with "gte" param) to
+     *                    < 0: entry is not accepted, listing should finish
-     *                                 the key returned by the skipping() method
-     *                    FILTER_END: the results are complete, listing can be stopped
      */
-    filter(/* entry: { key, value } */) {
+    filter(entry) {
-        return FILTER_ACCEPT;
+        return entry ? FILTER_SKIP : FILTER_SKIP;
     }
 
     /**
-     * Provides the next key at which the listing task is allowed to skip to.
+     * Provides the insight into why filter is skipping an entry. This could be
-     * This could allow to skip over:
+     * because it is skipping a range of delimited keys or a range of specific
-     * - a key prefix ending with the delimiter
+     * version when doing master version listing.
-     * - all remaining versions of an object when doing a current
-     *   versions listing in v0 format
-     * - a cached "gap" of deleted objects when doing a current
-     *   versions listing in v0 format
      *
-     * @return {string} - the next key at which the listing task is allowed to skip to
+     * @return {string} - the insight: a common prefix or a master key,
+     *                                 or SKIP_NONE if there is no insight
      */
     skipping() {
         return SKIP_NONE;

lib/algos/list/MPU.js

@@ -1,7 +1,7 @@
 'use strict'; // eslint-disable-line strict
 
 const { inc, checkLimit, listingParamsMasterKeysV0ToV1,
-    FILTER_END, FILTER_ACCEPT, SKIP_NONE } = require('./tools');
+    FILTER_END, FILTER_ACCEPT } = require('./tools');
 const DEFAULT_MAX_KEYS = 1000;
 const VSConst = require('../../versioning/constants').VersioningConstants;
 const { DbPrefixes, BucketVersioningKeyFormat } = VSConst;
@@ -163,7 +163,7 @@ class MultipartUploads {
     }
 
     skipping() {
-        return SKIP_NONE;
+        return '';
     }
 
     /**

lib/algos/list/basic.js

@@ -2,7 +2,7 @@
 
 const Extension = require('./Extension').default;
 
-const { checkLimit, FILTER_END, FILTER_ACCEPT } = require('./tools');
+const { checkLimit, FILTER_END, FILTER_ACCEPT, FILTER_SKIP } = require('./tools');
 const DEFAULT_MAX_KEYS = 10000;
 
 /**
@@ -91,7 +91,7 @@ class List extends Extension {
      *                     < 0 : listing done
      */
     filter(elem) {
-        // Check if the result array is full
+        // Check first in case of maxkeys <= 0
         if (this.keys >= this.maxKeys) {
             return FILTER_END;
         }
@@ -99,7 +99,7 @@ class List extends Extension {
              this.filterKeyStartsWith !== undefined) &&
             typeof elem === 'object' &&
             !this.customFilter(elem.value)) {
-            return FILTER_ACCEPT;
+            return FILTER_SKIP;
         }
         if (typeof elem === 'object') {
             this.res.push({

lib/algos/list/delimiter.js

@@ -0,0 +1,274 @@
+'use strict'; // eslint-disable-line strict
+
+const Extension = require('./Extension').default;
+const { inc, listingParamsMasterKeysV0ToV1,
+    FILTER_END, FILTER_ACCEPT, FILTER_SKIP } = require('./tools');
+const VSConst = require('../../versioning/constants').VersioningConstants;
+const { DbPrefixes, BucketVersioningKeyFormat } = VSConst;
+
+/**
+ * Find the common prefix in the path
+ *
+ * @param {String} key            - path of the object
+ * @param {String} delimiter      - separator
+ * @param {Number} delimiterIndex - 'folder' index in the path
+ * @return {String}               - CommonPrefix
+ */
+function getCommonPrefix(key, delimiter, delimiterIndex) {
+    return key.substring(0, delimiterIndex + delimiter.length);
+}
+
+/**
+ * Handle object listing with parameters
+ *
+ * @prop {String[]} CommonPrefixes     - 'folders' defined by the delimiter
+ * @prop {String[]} Contents           - 'files' to list
+ * @prop {Boolean} IsTruncated         - truncated listing flag
+ * @prop {String|undefined} NextMarker - marker per amazon format
+ * @prop {Number} keys                 - count of listed keys
+ * @prop {String|undefined} delimiter  - separator per amazon format
+ * @prop {String|undefined} prefix     - prefix per amazon format
+ * @prop {Number} maxKeys              - number of keys to list
+ */
+class Delimiter extends Extension {
+    /**
+     * Create a new Delimiter instance
+     * @constructor
+     * @param {Object}  parameters                     - listing parameters
+     * @param {String}  [parameters.delimiter]         - delimiter per amazon
+     *                                                   format
+     * @param {String}  [parameters.prefix]            - prefix per amazon
+     *                                                   format
+     * @param {String}  [parameters.marker]            - marker per amazon
+     *                                                   format
+     * @param {Number}  [parameters.maxKeys]           - number of keys to list
+     * @param {Boolean} [parameters.v2]                - indicates whether v2
+     *                                                   format
+     * @param {String}  [parameters.startAfter]        - marker per amazon
+     *                                                   format
+     * @param {String}  [parameters.continuationToken] - obfuscated amazon
+     *                                                   token
+     * @param {Boolean} [parameters.alphabeticalOrder] - Either the result is
+     *                                                   alphabetically ordered
+     *                                                   or not
+     * @param {RequestLogger} logger                   - The logger of the
+     *                                                   request
+     * @param {String} [vFormat]                       - versioning key format
+     */
+    constructor(parameters, logger, vFormat) {
+        super(parameters, logger);
+        // original listing parameters
+        this.delimiter = parameters.delimiter;
+        this.prefix = parameters.prefix;
+        this.marker = parameters.marker;
+        this.maxKeys = parameters.maxKeys || 1000;
+        this.startAfter = parameters.startAfter;
+        this.continuationToken = parameters.continuationToken;
+        this.alphabeticalOrder =
+          typeof parameters.alphabeticalOrder !== 'undefined' ?
+              parameters.alphabeticalOrder : true;
+
+        this.vFormat = vFormat || BucketVersioningKeyFormat.v0;
+        // results
+        this.CommonPrefixes = [];
+        this.Contents = [];
+        this.IsTruncated = false;
+        this.NextMarker = parameters.marker;
+        this.NextContinuationToken =
+            parameters.continuationToken || parameters.startAfter;
+
+        this.startMarker = parameters.v2 ? 'startAfter' : 'marker';
+        this.continueMarker = parameters.v2 ? 'continuationToken' : 'marker';
+        this.nextContinueMarker = parameters.v2 ?
+            'NextContinuationToken' : 'NextMarker';
+
+        if (this.delimiter !== undefined &&
+            this[this.nextContinueMarker] !== undefined &&
+            this[this.nextContinueMarker].startsWith(this.prefix || '')) {
+            const nextDelimiterIndex =
+                this[this.nextContinueMarker].indexOf(this.delimiter,
+                    this.prefix ? this.prefix.length : 0);
+            this[this.nextContinueMarker] =
+                this[this.nextContinueMarker].slice(0, nextDelimiterIndex +
+                                        this.delimiter.length);
+        }
+
+        Object.assign(this, {
+            [BucketVersioningKeyFormat.v0]: {
+                genMDParams: this.genMDParamsV0,
+                getObjectKey: this.getObjectKeyV0,
+                skipping: this.skippingV0,
+            },
+            [BucketVersioningKeyFormat.v1]: {
+                genMDParams: this.genMDParamsV1,
+                getObjectKey: this.getObjectKeyV1,
+                skipping: this.skippingV1,
+            },
+        }[this.vFormat]);
+    }
+
+    genMDParamsV0() {
+        const params = {};
+        if (this.prefix) {
+            params.gte = this.prefix;
+            params.lt = inc(this.prefix);
+        }
+        const startVal = this[this.continueMarker] || this[this.startMarker];
+        if (startVal) {
+            if (params.gte && params.gte > startVal) {
+                return params;
+            }
+            delete params.gte;
+            params.gt = startVal;
+        }
+        return params;
+    }
+
+    genMDParamsV1() {
+        const params = this.genMDParamsV0();
+        return listingParamsMasterKeysV0ToV1(params);
+    }
+
+    /**
+     * check if the max keys count has been reached and set the
+     * final state of the result if it is the case
+     * @return {Boolean} - indicates if the iteration has to stop
+     */
+    _reachedMaxKeys() {
+        if (this.keys >= this.maxKeys) {
+            // In cases of maxKeys <= 0 -> IsTruncated = false
+            this.IsTruncated = this.maxKeys > 0;
+            return true;
+        }
+        return false;
+    }
+
+    /**
+     *  Add a (key, value) tuple to the listing
+     *  Set the NextMarker to the current key
+     *  Increment the keys counter
+     *  @param {String} key   - The key to add
+     *  @param {String} value - The value of the key
+     *  @return {number}      - indicates if iteration should continue
+     */
+    addContents(key, value) {
+        if (this._reachedMaxKeys()) {
+            return FILTER_END;
+        }
+        this.Contents.push({ key, value: this.trimMetadata(value) });
+        this[this.nextContinueMarker] = key;
+        ++this.keys;
+        return FILTER_ACCEPT;
+    }
+
+    getObjectKeyV0(obj) {
+        return obj.key;
+    }
+
+    getObjectKeyV1(obj) {
+        return obj.key.slice(DbPrefixes.Master.length);
+    }
+
+    /**
+     *  Filter to apply on each iteration, based on:
+     *  - prefix
+     *  - delimiter
+     *  - maxKeys
+     *  The marker is being handled directly by levelDB
+     *  @param {Object} obj       - The key and value of the element
+     *  @param {String} obj.key   - The key of the element
+     *  @param {String} obj.value - The value of the element
+     *  @return {number}          - indicates if iteration should continue
+     */
+    filter(obj) {
+        const key = this.getObjectKey(obj);
+        const value = obj.value;
+        if ((this.prefix && !key.startsWith(this.prefix))
+            || (this.alphabeticalOrder
+                && typeof this[this.nextContinueMarker] === 'string'
+                && key <= this[this.nextContinueMarker])) {
+            return FILTER_SKIP;
+        }
+        if (this.delimiter) {
+            const baseIndex = this.prefix ? this.prefix.length : 0;
+            const delimiterIndex = key.indexOf(this.delimiter, baseIndex);
+            if (delimiterIndex === -1) {
+                return this.addContents(key, value);
+            }
+            return this.addCommonPrefix(key, delimiterIndex);
+        }
+        return this.addContents(key, value);
+    }
+
+    /**
+     * Add a Common Prefix in the list
+     * @param {String} key   - object name
+     * @param {Number} index - after prefix starting point
+     * @return {Boolean}     - indicates if iteration should continue
+     */
+    addCommonPrefix(key, index) {
+        const commonPrefix = getCommonPrefix(key, this.delimiter, index);
+        if (this.CommonPrefixes.indexOf(commonPrefix) === -1
+                && this[this.nextContinueMarker] !== commonPrefix) {
+            if (this._reachedMaxKeys()) {
+                return FILTER_END;
+            }
+            this.CommonPrefixes.push(commonPrefix);
+            this[this.nextContinueMarker] = commonPrefix;
+            ++this.keys;
+            return FILTER_ACCEPT;
+        }
+        return FILTER_SKIP;
+    }
+
+    /**
+     * If repd happens to want to skip listing on a bucket in v0
+     * versioning key format, here is an idea.
+     *
+     * @return {string} - the present range (NextMarker) if repd believes
+     *                    that it's enough and should move on
+     */
+    skippingV0() {
+        return this[this.nextContinueMarker];
+    }
+
+    /**
+     * If repd happens to want to skip listing on a bucket in v1
+     * versioning key format, here is an idea.
+     *
+     * @return {string} - the present range (NextMarker) if repd believes
+     *                    that it's enough and should move on
+     */
+    skippingV1() {
+        return DbPrefixes.Master + this[this.nextContinueMarker];
+    }
+
+    /**
+     *  Return an object containing all mandatory fields to use once the
+     *  iteration is done, doesn't show a NextMarker field if the output
+     *  isn't truncated
+     *  @return {Object} - following amazon format
+     */
+    result() {
+        /* NextMarker is only provided when delimiter is used.
+         * specified in v1 listing documentation
+         * http://docs.aws.amazon.com/AmazonS3/latest/API/RESTBucketGET.html
+         */
+        const result = {
+            CommonPrefixes: this.CommonPrefixes,
+            Contents: this.Contents,
+            IsTruncated: this.IsTruncated,
+            Delimiter: this.delimiter,
+        };
+        if (this.parameters.v2) {
+            result.NextContinuationToken = this.IsTruncated
+                ? this.NextContinuationToken : undefined;
+        } else {
+            result.NextMarker = (this.IsTruncated && this.delimiter)
+                ? this.NextMarker : undefined;
+        }
+        return result;
+    }
+}
+
+module.exports = { Delimiter };

lib/algos/list/delimiter.ts

@@ -1,356 +0,0 @@
-'use strict'; // eslint-disable-line strict
-
-const Extension = require('./Extension').default;
-const { inc, listingParamsMasterKeysV0ToV1,
-    FILTER_END, FILTER_ACCEPT, FILTER_SKIP, SKIP_NONE } = require('./tools');
-const VSConst = require('../../versioning/constants').VersioningConstants;
-const { DbPrefixes, BucketVersioningKeyFormat } = VSConst;
-
-export interface FilterState {
-    id: number,
-};
-
-export interface FilterReturnValue {
-    FILTER_ACCEPT,
-    FILTER_SKIP,
-    FILTER_END,
-};
-
-export const enum DelimiterFilterStateId {
-    NotSkipping = 1,
-    SkippingPrefix = 2,
-};
-
-export interface DelimiterFilterState_NotSkipping extends FilterState {
-    id: DelimiterFilterStateId.NotSkipping,
-};
-
-export interface DelimiterFilterState_SkippingPrefix extends FilterState {
-    id: DelimiterFilterStateId.SkippingPrefix,
-    prefix: string;
-};
-
-type KeyHandler = (key: string, value: string) => FilterReturnValue;
-
-export type ResultObject = {
-    CommonPrefixes: string[];
-    Contents: {
-        key: string;
-        value: string;
-    }[];
-    IsTruncated: boolean;
-    Delimiter ?: string;
-    NextMarker ?: string;
-    NextContinuationToken ?: string;
-};
-
-/**
- * Handle object listing with parameters
- *
- * @prop {String[]} CommonPrefixes     - 'folders' defined by the delimiter
- * @prop {String[]} Contents           - 'files' to list
- * @prop {Boolean} IsTruncated         - truncated listing flag
- * @prop {String|undefined} NextMarker - marker per amazon format
- * @prop {Number} keys                 - count of listed keys
- * @prop {String|undefined} delimiter  - separator per amazon format
- * @prop {String|undefined} prefix     - prefix per amazon format
- * @prop {Number} maxKeys              - number of keys to list
- */
-export class Delimiter extends Extension {
-
-    state: FilterState;
-    keyHandlers: { [id: number]: KeyHandler };
-
-    /**
-     * Create a new Delimiter instance
-     * @constructor
-     * @param {Object}  parameters                     - listing parameters
-     * @param {String}  [parameters.delimiter]         - delimiter per amazon
-     *                                                   format
-     * @param {String}  [parameters.prefix]            - prefix per amazon
-     *                                                   format
-     * @param {String}  [parameters.marker]            - marker per amazon
-     *                                                   format
-     * @param {Number}  [parameters.maxKeys]           - number of keys to list
-     * @param {Boolean} [parameters.v2]                - indicates whether v2
-     *                                                   format
-     * @param {String}  [parameters.startAfter]        - marker per amazon
-     *                                                   format
-     * @param {String}  [parameters.continuationToken] - obfuscated amazon
-     *                                                   token
-     * @param {RequestLogger} logger                   - The logger of the
-     *                                                   request
-     * @param {String} [vFormat]                       - versioning key format
-     */
-    constructor(parameters, logger, vFormat) {
-        super(parameters, logger);
-        // original listing parameters
-        this.delimiter = parameters.delimiter;
-        this.prefix = parameters.prefix;
-        this.maxKeys = parameters.maxKeys || 1000;
-
-        if (parameters.v2) {
-            this.marker = parameters.continuationToken || parameters.startAfter;
-        } else {
-            this.marker = parameters.marker;
-        }
-        this.nextMarker = this.marker;
-
-        this.vFormat = vFormat || BucketVersioningKeyFormat.v0;
-        // results
-        this.CommonPrefixes = [];
-        this.Contents = [];
-        this.IsTruncated = false;
-        this.keyHandlers = {};
-
-        Object.assign(this, {
-            [BucketVersioningKeyFormat.v0]: {
-                genMDParams: this.genMDParamsV0,
-                getObjectKey: this.getObjectKeyV0,
-                skipping: this.skippingV0,
-            },
-            [BucketVersioningKeyFormat.v1]: {
-                genMDParams: this.genMDParamsV1,
-                getObjectKey: this.getObjectKeyV1,
-                skipping: this.skippingV1,
-            },
-        }[this.vFormat]);
-
-        // if there is a delimiter, we may skip ranges by prefix,
-        // hence using the NotSkippingPrefix flavor that checks the
-        // subprefix up to the delimiter for the NotSkipping state
-        if (this.delimiter) {
-            this.setKeyHandler(
-                DelimiterFilterStateId.NotSkipping,
-                this.keyHandler_NotSkippingPrefix.bind(this));
-        } else {
-            // listing without a delimiter never has to skip over any
-            // prefix -> use NeverSkipping flavor for the NotSkipping
-            // state
-            this.setKeyHandler(
-                DelimiterFilterStateId.NotSkipping,
-                this.keyHandler_NeverSkipping.bind(this));
-        }
-        this.setKeyHandler(
-            DelimiterFilterStateId.SkippingPrefix,
-            this.keyHandler_SkippingPrefix.bind(this));
-
-        this.state = <DelimiterFilterState_NotSkipping> {
-            id: DelimiterFilterStateId.NotSkipping,
-        };
-    }
-
-    genMDParamsV0() {
-        const params: { gt ?: string, gte ?: string, lt ?: string } = {};
-        if (this.prefix) {
-            params.gte = this.prefix;
-            params.lt = inc(this.prefix);
-        }
-        if (this.marker && this.delimiter) {
-            const commonPrefix = this.getCommonPrefix(this.marker);
-            if (commonPrefix) {
-                const afterPrefix = inc(commonPrefix);
-                if (!params.gte || afterPrefix > params.gte) {
-                    params.gte = afterPrefix;
-                }
-            }
-        }
-        if (this.marker && (!params.gte || this.marker >= params.gte)) {
-            delete params.gte;
-            params.gt = this.marker;
-        }
-        return params;
-    }
-
-    genMDParamsV1() {
-        const params = this.genMDParamsV0();
-        return listingParamsMasterKeysV0ToV1(params);
-    }
-
-    /**
-     * check if the max keys count has been reached and set the
-     * final state of the result if it is the case
-     * @return {Boolean} - indicates if the iteration has to stop
-     */
-    _reachedMaxKeys(): boolean {
-        if (this.keys >= this.maxKeys) {
-            // In cases of maxKeys <= 0 -> IsTruncated = false
-            this.IsTruncated = this.maxKeys > 0;
-            return true;
-        }
-        return false;
-    }
-
-    /**
-     *  Add a (key, value) tuple to the listing
-     *  Set the NextMarker to the current key
-     *  Increment the keys counter
-     *  @param {String} key   - The key to add
-     *  @param {String} value - The value of the key
-     *  @return {number}      - indicates if iteration should continue
-     */
-    addContents(key: string, value: string): void {
-        this.Contents.push({ key, value: this.trimMetadata(value) });
-        ++this.keys;
-        this.nextMarker = key;
-    }
-
-    getCommonPrefix(key: string): string | undefined {
-        if (!this.delimiter) {
-            return undefined;
-        }
-        const baseIndex = this.prefix ? this.prefix.length : 0;
-        const delimiterIndex = key.indexOf(this.delimiter, baseIndex);
-        if (delimiterIndex === -1) {
-            return undefined;
-        }
-        return key.substring(0, delimiterIndex + this.delimiter.length);
-    }
-
-    /**
-     * Add a Common Prefix in the list
-     * @param {String} commonPrefix   - common prefix to add
-     * @param {String} key            - full key starting with commonPrefix
-     * @return {Boolean}     - indicates if iteration should continue
-     */
-    addCommonPrefix(commonPrefix: string, key: string): void {
-        // add the new prefix to the list
-        this.CommonPrefixes.push(commonPrefix);
-        ++this.keys;
-        this.nextMarker = commonPrefix;
-    }
-
-    addCommonPrefixOrContents(key: string, value: string): string | undefined {
-        // add the subprefix to the common prefixes if the key has the delimiter
-        const commonPrefix = this.getCommonPrefix(key);
-        if (commonPrefix) {
-            this.addCommonPrefix(commonPrefix, key);
-            return commonPrefix;
-        }
-        this.addContents(key, value);
-        return undefined;
-    }
-
-    getObjectKeyV0(obj: { key: string }): string {
-        return obj.key;
-    }
-
-    getObjectKeyV1(obj: { key: string }): string {
-        return obj.key.slice(DbPrefixes.Master.length);
-    }
-
-    /**
-     *  Filter to apply on each iteration, based on:
-     *  - prefix
-     *  - delimiter
-     *  - maxKeys
-     *  The marker is being handled directly by levelDB
-     *  @param {Object} obj       - The key and value of the element
-     *  @param {String} obj.key   - The key of the element
-     *  @param {String} obj.value - The value of the element
-     *  @return {number}          - indicates if iteration should continue
-     */
-    filter(obj: { key: string, value: string }): FilterReturnValue {
-        const key = this.getObjectKey(obj);
-        const value = obj.value;
-
-        return this.handleKey(key, value);
-    }
-
-    setState(state: FilterState): void {
-        this.state = state;
-    }
-
-    setKeyHandler(stateId: number, keyHandler: KeyHandler): void {
-        this.keyHandlers[stateId] = keyHandler;
-    }
-
-    handleKey(key: string, value: string): FilterReturnValue {
-        return this.keyHandlers[this.state.id](key, value);
-    }
-
-    keyHandler_NeverSkipping(key: string, value: string): FilterReturnValue {
-        if (this._reachedMaxKeys()) {
-            return FILTER_END;
-        }
-        this.addContents(key, value);
-        return FILTER_ACCEPT;
-    }
-
-    keyHandler_NotSkippingPrefix(key: string, value: string): FilterReturnValue {
-        if (this._reachedMaxKeys()) {
-            return FILTER_END;
-        }
-        const commonPrefix = this.addCommonPrefixOrContents(key, value);
-        if (commonPrefix) {
-            // transition into SkippingPrefix state to skip all following keys
-            // while they start with the same prefix
-            this.setState(<DelimiterFilterState_SkippingPrefix> {
-                id: DelimiterFilterStateId.SkippingPrefix,
-                prefix: commonPrefix,
-            });
-        }
-        return FILTER_ACCEPT;
-    }
-
-    keyHandler_SkippingPrefix(key: string, value: string): FilterReturnValue {
-        const { prefix } = <DelimiterFilterState_SkippingPrefix> this.state;
-        if (key.startsWith(prefix)) {
-            return FILTER_SKIP;
-        }
-        this.setState(<DelimiterFilterState_NotSkipping> {
-            id: DelimiterFilterStateId.NotSkipping,
-        });
-        return this.handleKey(key, value);
-    }
-
-    skippingBase(): string | undefined {
-        switch (this.state.id) {
-        case DelimiterFilterStateId.SkippingPrefix:
-            const { prefix } = <DelimiterFilterState_SkippingPrefix> this.state;
-            return inc(prefix);
-
-        default:
-            return SKIP_NONE;
-        }
-    }
-
-    skippingV0() {
-        return this.skippingBase();
-    }
-
-    skippingV1() {
-        const skipTo = this.skippingBase();
-        if (skipTo === SKIP_NONE) {
-            return SKIP_NONE;
-        }
-        return DbPrefixes.Master + skipTo;
-    }
-
-    /**
-     *  Return an object containing all mandatory fields to use once the
-     *  iteration is done, doesn't show a NextMarker field if the output
-     *  isn't truncated
-     *  @return {Object} - following amazon format
-     */
-    result(): ResultObject {
-        /* NextMarker is only provided when delimiter is used.
-         * specified in v1 listing documentation
-         * http://docs.aws.amazon.com/AmazonS3/latest/API/RESTBucketGET.html
-         */
-        const result: ResultObject = {
-            CommonPrefixes: this.CommonPrefixes,
-            Contents: this.Contents,
-            IsTruncated: this.IsTruncated,
-            Delimiter: this.delimiter,
-        };
-        if (this.parameters.v2) {
-            result.NextContinuationToken = this.IsTruncated
-                ? this.nextMarker : undefined;
-        } else {
-            result.NextMarker = (this.IsTruncated && this.delimiter)
-                ? this.nextMarker : undefined;
-        }
-        return result;
-    }
-}

lib/algos/list/delimiterCurrent.ts

@@ -1,127 +0,0 @@
-const { DelimiterMaster } = require('./delimiterMaster');
-const { FILTER_ACCEPT, FILTER_END } = require('./tools');
-
-type ResultObject = {
-    Contents: {
-        key: string;
-        value: string;
-    }[];
-    IsTruncated: boolean;
-    NextMarker ?: string;
-};
-
-/**
- * Handle object listing with parameters. This extends the base class DelimiterMaster
- * to return the master/current versions.
- */
-class DelimiterCurrent extends DelimiterMaster {
-    /**
-     * Delimiter listing of current versions.
-     * @param {Object}  parameters            - listing parameters
-     * @param {String}  parameters.beforeDate - limit the response to keys older than beforeDate
-     * @param {String}  parameters.excludedDataStoreName - excluded datatore name
-     * @param {Number} parameters.maxScannedLifecycleListingEntries - max number of entries to be scanned
-     * @param {RequestLogger} logger          - The logger of the request
-     * @param {String} [vFormat]              - versioning key format
-     */
-    constructor(parameters, logger, vFormat) {
-        super(parameters, logger, vFormat);
-
-        this.beforeDate = parameters.beforeDate;
-        this.excludedDataStoreName = parameters.excludedDataStoreName;
-        this.maxScannedLifecycleListingEntries = parameters.maxScannedLifecycleListingEntries;
-        this.scannedKeys = 0;
-    }
-
-    genMDParamsV0() {
-        const params = super.genMDParamsV0();
-        // lastModified and dataStoreName parameters are used by metadata that enables built-in filtering, 
-        // a feature currently exclusive to MongoDB
-        if (this.beforeDate) {
-            params.lastModified = {
-                lt: this.beforeDate,
-            };
-        }
-
-        if (this.excludedDataStoreName) {
-            params.dataStoreName = {
-                ne: this.excludedDataStoreName,
-            }
-        }
-
-        return params;
-    }
-
-    /**
-     * Parses the stringified entry's value.
-     * @param s - sringified value
-     * @return - undefined if parsing fails, otherwise it contains the parsed value.
-     */
-    _parse(s) {
-        let p;
-        try {
-            p = JSON.parse(s);
-        } catch (e: any) {
-            this.logger.warn(
-                'Could not parse Object Metadata while listing',
-                { err: e.toString() });
-        }
-        return p;
-    }
-
-    /**
-     * check if the max keys count has been reached and set the
-     * final state of the result if it is the case
-     *
-     * specialized implementation on DelimiterCurrent to also check
-     * the number of scanned keys
-     *
-     * @return {Boolean} - indicates if the iteration has to stop
-     */
-    _reachedMaxKeys(): boolean {
-        if (this.maxScannedLifecycleListingEntries && this.scannedKeys >= this.maxScannedLifecycleListingEntries) {
-            this.IsTruncated = true;
-            this.logger.info('listing stopped due to reaching the maximum scanned entries limit',
-                {
-                    maxScannedLifecycleListingEntries: this.maxScannedLifecycleListingEntries,
-                    scannedKeys: this.scannedKeys,
-                });
-            return true;
-        }
-        return super._reachedMaxKeys();
-    }
-
-    addContents(key, value) {
-        ++this.scannedKeys;
-        const parsedValue = this._parse(value);
-        // if parsing fails, skip the key.
-        if (parsedValue) {
-            const lastModified = parsedValue['last-modified'];
-            const dataStoreName = parsedValue.dataStoreName;
-            // We then check if the current version is older than the "beforeDate" and
-            // "excludedDataStoreName" is not specified or if specified and the data store name is different.
-            if ((!this.beforeDate || (lastModified && lastModified < this.beforeDate)) &&
-                (!this.excludedDataStoreName || dataStoreName !== this.excludedDataStoreName)) {
-                super.addContents(key, value);
-            }
-            // In the event of a timeout occurring before any content is added,
-            // NextMarker is updated even if the object is not eligible.
-            // It minimizes the amount of data that the client needs to re-process if the request times out.
-            this.nextMarker = key;
-        }
-    }
-
-    result(): object {
-        const result: ResultObject = {
-            Contents: this.Contents,
-            IsTruncated: this.IsTruncated,
-        };
-
-        if (this.IsTruncated) {
-            result.NextMarker = this.nextMarker;
-        }
-
-        return result;
-    }
-}
-module.exports = { DelimiterCurrent };

lib/algos/list/delimiterMaster.js

@@ -0,0 +1,196 @@
+'use strict'; // eslint-disable-line strict
+
+const Delimiter = require('./delimiter').Delimiter;
+const Version = require('../../versioning/Version').Version;
+const VSConst = require('../../versioning/constants').VersioningConstants;
+const { BucketVersioningKeyFormat } = VSConst;
+const { FILTER_ACCEPT, FILTER_SKIP, SKIP_NONE } = require('./tools');
+
+const VID_SEP = VSConst.VersionId.Separator;
+const { DbPrefixes } = VSConst;
+
+/**
+ * Handle object listing with parameters. This extends the base class Delimiter
+ * to return the raw master versions of existing objects.
+ */
+class DelimiterMaster extends Delimiter {
+    /**
+     * Delimiter listing of master versions.
+     * @param {Object}  parameters            - listing parameters
+     * @param {String}  parameters.delimiter  - delimiter per amazon format
+     * @param {String}  parameters.prefix     - prefix per amazon format
+     * @param {String}  parameters.marker     - marker per amazon format
+     * @param {Number}  parameters.maxKeys    - number of keys to list
+     * @param {Boolean} parameters.v2         - indicates whether v2 format
+     * @param {String}  parameters.startAfter - marker per amazon v2 format
+     * @param {String}  parameters.continuationToken - obfuscated amazon token
+     * @param {RequestLogger} logger          - The logger of the request
+     * @param {String} [vFormat]              - versioning key format
+     */
+    constructor(parameters, logger, vFormat) {
+        super(parameters, logger, vFormat);
+        // non-PHD master version or a version whose master is a PHD version
+        this.prvKey = undefined;
+        this.prvPHDKey = undefined;
+        this.inReplayPrefix = false;
+
+        Object.assign(this, {
+            [BucketVersioningKeyFormat.v0]: {
+                filter: this.filterV0,
+                skipping: this.skippingV0,
+            },
+            [BucketVersioningKeyFormat.v1]: {
+                filter: this.filterV1,
+                skipping: this.skippingV1,
+            },
+        }[this.vFormat]);
+    }
+
+    /**
+     *  Filter to apply on each iteration for buckets in v0 format,
+     *  based on:
+     *  - prefix
+     *  - delimiter
+     *  - maxKeys
+     *  The marker is being handled directly by levelDB
+     *  @param {Object} obj       - The key and value of the element
+     *  @param {String} obj.key   - The key of the element
+     *  @param {String} obj.value - The value of the element
+     *  @return {number}          - indicates if iteration should continue
+     */
+    filterV0(obj) {
+        let key = obj.key;
+        const value = obj.value;
+
+        if (key.startsWith(DbPrefixes.Replay)) {
+            this.inReplayPrefix = true;
+            return FILTER_SKIP;
+        }
+        this.inReplayPrefix = false;
+
+        /* Skip keys not starting with the prefix or not alphabetically
+         * ordered. */
+        if ((this.prefix && !key.startsWith(this.prefix))
+                || (typeof this[this.nextContinueMarker] === 'string' &&
+                    key <= this[this.nextContinueMarker])) {
+            return FILTER_SKIP;
+        }
+
+        /* Skip version keys (<key><versionIdSeparator><version>) if we already
+         * have a master version. */
+        const versionIdIndex = key.indexOf(VID_SEP);
+        if (versionIdIndex >= 0) {
+            key = key.slice(0, versionIdIndex);
+            /* - key === this.prvKey is triggered when a master version has
+             *   been accepted for this key,
+             * - key === this.NextMarker or this.NextContinueToken is triggered
+             *   when a listing page ends on an accepted obj and the next page
+             *   starts with a version of this object.
+             *   In that case prvKey is default set to undefined
+             *   in the constructor and comparing to NextMarker is the only
+             *   way to know  we should not accept this version. This test is
+             *   not redundant with the one at the beginning of this function,
+             *   we are comparing here the key without the version suffix,
+             * - key startsWith the previous NextMarker happens because we set
+             *   NextMarker to the common prefix instead of the whole key
+             *   value. (TODO: remove this test once ZENKO-1048 is fixed)
+             *   */
+            if (key === this.prvKey || key === this[this.nextContinueMarker] ||
+                (this.delimiter &&
+                key.startsWith(this[this.nextContinueMarker]))) {
+                /* master version already filtered */
+                return FILTER_SKIP;
+            }
+        }
+        if (Version.isPHD(value)) {
+            /* master version is a PHD version, we want to wait for the next
+             * one:
+             * - Set the prvKey to undefined to not skip the next version,
+             * - return accept to avoid users to skip the next values in range
+             *   (skip scan mechanism in metadata backend like Metadata or
+             *   MongoClient). */
+            this.prvKey = undefined;
+            this.prvPHDKey = key;
+            return FILTER_ACCEPT;
+        }
+        if (Version.isDeleteMarker(value)) {
+            /* This entry is a deleteMarker which has not been filtered by the
+             * version test. Either :
+             * - it is a deleteMarker on the master version, we want to SKIP
+             *   all the following entries with this key (no master version),
+             * - or a deleteMarker following a PHD (setting prvKey to undefined
+             *   when an entry is a PHD avoids the skip on version for the
+             *   next entry). In that case we expect the master version to
+             *   follow. */
+            if (key === this.prvPHDKey) {
+                this.prvKey = undefined;
+                return FILTER_ACCEPT;
+            }
+            this.prvKey = key;
+            return FILTER_SKIP;
+        }
+
+        this.prvKey = key;
+        if (this.delimiter) {
+            // check if the key has the delimiter
+            const baseIndex = this.prefix ? this.prefix.length : 0;
+            const delimiterIndex = key.indexOf(this.delimiter, baseIndex);
+            if (delimiterIndex >= 0) {
+                // try to add the prefix to the list
+                return this.addCommonPrefix(key, delimiterIndex);
+            }
+        }
+        return this.addContents(key, value);
+    }
+
+    /**
+     *  Filter to apply on each iteration for buckets in v1 format,
+     *  based on:
+     *  - prefix
+     *  - delimiter
+     *  - maxKeys
+     *  The marker is being handled directly by levelDB
+     *  @param {Object} obj       - The key and value of the element
+     *  @param {String} obj.key   - The key of the element
+     *  @param {String} obj.value - The value of the element
+     *  @return {number}          - indicates if iteration should continue
+     */
+    filterV1(obj) {
+        // Filtering master keys in v1 is simply listing the master
+        // keys, as the state of version keys do not change the
+        // result, so we can use Delimiter method directly.
+        return super.filter(obj);
+    }
+
+    skippingBase() {
+        if (this[this.nextContinueMarker]) {
+            // next marker or next continuation token:
+            // - foo/ : skipping foo/
+            // - foo  : skipping foo.
+            const index = this[this.nextContinueMarker].
+                lastIndexOf(this.delimiter);
+            if (index === this[this.nextContinueMarker].length - 1) {
+                return this[this.nextContinueMarker];
+            }
+            return this[this.nextContinueMarker] + VID_SEP;
+        }
+        return SKIP_NONE;
+    }
+
+    skippingV0() {
+        if (this.inReplayPrefix) {
+            return DbPrefixes.Replay;
+        }
+        return this.skippingBase();
+    }
+
+    skippingV1() {
+        const skipTo = this.skippingBase();
+        if (skipTo === SKIP_NONE) {
+            return SKIP_NONE;
+        }
+        return DbPrefixes.Master + skipTo;
+    }
+}
+
+module.exports = { DelimiterMaster };

lib/algos/list/delimiterMaster.ts

@@ -1,620 +0,0 @@
-import {
-    Delimiter,
-    FilterState,
-    FilterReturnValue,
-    DelimiterFilterStateId,
-    DelimiterFilterState_NotSkipping,
-    DelimiterFilterState_SkippingPrefix,
-    ResultObject,
-} from './delimiter';
-const Version = require('../../versioning/Version').Version;
-const VSConst = require('../../versioning/constants').VersioningConstants;
-const { BucketVersioningKeyFormat } = VSConst;
-const { FILTER_ACCEPT, FILTER_SKIP, FILTER_END, SKIP_NONE, inc } = require('./tools');
-
-import { GapSetEntry } from '../cache/GapSet';
-import { GapCacheInterface } from '../cache/GapCache';
-
-const VID_SEP = VSConst.VersionId.Separator;
-const { DbPrefixes } = VSConst;
-
-export const enum DelimiterMasterFilterStateId {
-    SkippingVersionsV0 = 101,
-    WaitVersionAfterPHDV0 = 102,
-    SkippingGapV0 = 103,
-};
-
-interface DelimiterMasterFilterState_SkippingVersionsV0 extends FilterState {
-    id: DelimiterMasterFilterStateId.SkippingVersionsV0,
-    masterKey: string,
-};
-
-interface DelimiterMasterFilterState_WaitVersionAfterPHDV0 extends FilterState {
-    id: DelimiterMasterFilterStateId.WaitVersionAfterPHDV0,
-    masterKey: string,
-};
-
-interface DelimiterMasterFilterState_SkippingGapV0 extends FilterState {
-    id: DelimiterMasterFilterStateId.SkippingGapV0,
-};
-
-export const enum GapCachingState {
-    NoGapCache = 0, // there is no gap cache
-    UnknownGap = 1, // waiting for a cache lookup
-    GapLookupInProgress = 2, // asynchronous gap lookup in progress
-    GapCached = 3, // an upcoming or already skippable gap is cached
-    NoMoreGap = 4, // the cache doesn't have any more gaps inside the listed range
-};
-
-type GapCachingInfo_NoGapCache = {
-    state: GapCachingState.NoGapCache;
-};
-
-type GapCachingInfo_NoCachedGap = {
-    state: GapCachingState.UnknownGap
-        | GapCachingState.GapLookupInProgress
-    gapCache: GapCacheInterface;
-};
-
-type GapCachingInfo_GapCached = {
-    state: GapCachingState.GapCached;
-    gapCache: GapCacheInterface;
-    gapCached: GapSetEntry;
-};
-
-type GapCachingInfo_NoMoreGap = {
-    state: GapCachingState.NoMoreGap;
-};
-
-type GapCachingInfo = GapCachingInfo_NoGapCache
-    | GapCachingInfo_NoCachedGap
-    | GapCachingInfo_GapCached
-    | GapCachingInfo_NoMoreGap;
-
-
-export const enum GapBuildingState {
-    Disabled = 0, // no gap cache or no gap building needed (e.g. in V1 versioning format)
-    NotBuilding = 1, // not currently building a gap (i.e. not listing within a gap)
-    Building = 2, // currently building a gap (i.e. listing within a gap)
-    Expired = 3, // not allowed to build due to exposure delay timeout
-};
-
-type GapBuildingInfo_NothingToBuild = {
-    state: GapBuildingState.Disabled | GapBuildingState.Expired;
-};
-
-type GapBuildingParams = {
-    /**
-     * minimum weight for a gap to be created in the cache
-     */
-    minGapWeight: number;
-    /**
-     * trigger a cache setGap() call every N skippable keys
-     */
-    triggerSaveGapWeight: number;
-    /**
-     * timestamp to assess whether we're still inside the validity period to
-     * be allowed to build gaps
-     */
-    initTimestamp: number;
-};
-
-type GapBuildingInfo_NotBuilding = {
-    state: GapBuildingState.NotBuilding;
-    gapCache: GapCacheInterface;
-    params: GapBuildingParams;
-};
-
-type GapBuildingInfo_Building = {
-    state: GapBuildingState.Building;
-    gapCache: GapCacheInterface;
-    params: GapBuildingParams;
-    /**
-     * Gap currently being created
-     */
-    gap: GapSetEntry;
-    /**
-     * total current weight of the gap being created
-     */
-    gapWeight: number;
-};
-
-type GapBuildingInfo = GapBuildingInfo_NothingToBuild
-    | GapBuildingInfo_NotBuilding
-    | GapBuildingInfo_Building;
-
-/**
- * Handle object listing with parameters. This extends the base class Delimiter
- * to return the raw master versions of existing objects.
- */
-export class DelimiterMaster extends Delimiter {
-
-    _gapCaching: GapCachingInfo;
-    _gapBuilding: GapBuildingInfo;
-    _refreshedBuildingParams: GapBuildingParams | null;
-
-    /**
-     * Delimiter listing of master versions.
-     * @param {Object}  parameters            - listing parameters
-     * @param {String}  [parameters.delimiter]  - delimiter per amazon format
-     * @param {String}  [parameters.prefix]     - prefix per amazon format
-     * @param {String}  [parameters.marker]     - marker per amazon format
-     * @param {Number}  [parameters.maxKeys]    - number of keys to list
-     * @param {Boolean} [parameters.v2]         - indicates whether v2 format
-     * @param {String}  [parameters.startAfter] - marker per amazon v2 format
-     * @param {String}  [parameters.continuationToken] - obfuscated amazon token
-     * @param {RequestLogger} logger            - The logger of the request
-     * @param {String}  [vFormat="v0"]          - versioning key format
-     */
-    constructor(parameters, logger, vFormat?: string) {
-        super(parameters, logger, vFormat);
-
-        if (this.vFormat === BucketVersioningKeyFormat.v0) {
-            // override Delimiter's implementation of NotSkipping for
-            // DelimiterMaster logic (skipping versions and special
-            // handling of delete markers and PHDs)
-            this.setKeyHandler(
-                DelimiterFilterStateId.NotSkipping,
-                this.keyHandler_NotSkippingPrefixNorVersionsV0.bind(this));
-
-            // add extra state handlers specific to DelimiterMaster with v0 format
-            this.setKeyHandler(
-                DelimiterMasterFilterStateId.SkippingVersionsV0,
-                this.keyHandler_SkippingVersionsV0.bind(this));
-
-            this.setKeyHandler(
-                DelimiterMasterFilterStateId.WaitVersionAfterPHDV0,
-                this.keyHandler_WaitVersionAfterPHDV0.bind(this));
-
-            this.setKeyHandler(
-                DelimiterMasterFilterStateId.SkippingGapV0,
-                this.keyHandler_SkippingGapV0.bind(this));
-
-            if (this.marker) {
-                // distinct initial state to include some special logic
-                // before the first master key is found that does not have
-                // to be checked afterwards
-                this.state = <DelimiterMasterFilterState_SkippingVersionsV0> {
-                    id: DelimiterMasterFilterStateId.SkippingVersionsV0,
-                    masterKey: this.marker,
-                };
-            } else {
-                this.state = <DelimiterFilterState_NotSkipping> {
-                    id: DelimiterFilterStateId.NotSkipping,
-                };
-            }
-        } else {
-            // save base implementation of the `NotSkipping` state in
-            // Delimiter before overriding it with ours, to be able to call it from there
-            this.keyHandler_NotSkipping_Delimiter = this.keyHandlers[DelimiterFilterStateId.NotSkipping];
-            this.setKeyHandler(
-                DelimiterFilterStateId.NotSkipping,
-                this.keyHandler_NotSkippingPrefixNorVersionsV1.bind(this));
-        }
-        // in v1, we can directly use Delimiter's implementation,
-        // which is already set to the proper state
-
-        // default initialization of the gap cache and building states, can be
-        // set by refreshGapCache()
-        this._gapCaching = {
-            state: GapCachingState.NoGapCache,
-        };
-        this._gapBuilding = {
-            state: GapBuildingState.Disabled,
-        };
-        this._refreshedBuildingParams = null;
-    }
-
-    /**
-     * Get the validity period left before a refresh of the gap cache is needed
-     * to continue building new gaps.
-     *
-     * @return {number|null} one of:
-     * - the remaining time in milliseconds in which gaps can be added to the
-     *   cache before a call to refreshGapCache() is required
-     * - or 0 if there is no time left and a call to refreshGapCache() is required
-     *   to resume caching gaps
-     * - or null if refreshing the cache is never needed (because the gap cache
-     *   is either not available or not used)
-     */
-    getGapBuildingValidityPeriodMs(): number | null {
-        let gapBuilding;
-        switch (this._gapBuilding.state) {
-        case GapBuildingState.Disabled:
-            return null;
-        case GapBuildingState.Expired:
-            return 0;
-        case GapBuildingState.NotBuilding:
-            gapBuilding = <GapBuildingInfo_NotBuilding> this._gapBuilding;
-            break;
-        case GapBuildingState.Building:
-            gapBuilding = <GapBuildingInfo_Building> this._gapBuilding;
-            break;
-        }
-        const { gapCache, params } = gapBuilding;
-        const elapsedTime = Date.now() - params.initTimestamp;
-        return Math.max(gapCache.exposureDelayMs - elapsedTime, 0);
-    }
-
-    /**
-     * Refresh the gaps caching logic (gaps are series of current delete markers
-     * in V0 bucket metadata format). It has two effects:
-     *
-     * - starts exposing existing and future gaps from the cache to efficiently
-     *   skip over series of current delete markers that have been seen and cached
-     *   earlier
-     *
-     * - enables building and caching new gaps (or extend existing ones), for a
-     *   limited time period defined by the `gapCacheProxy.exposureDelayMs` value
-     *   in milliseconds. To refresh the validity period and resume building and
-     *   caching new gaps, one must restart a new listing from the database (starting
-     *   at the current listing key, included), then call refreshGapCache() again.
-     *
-     * @param {GapCacheInterface} gapCacheProxy - API proxy to the gaps cache
-     *   (the proxy should handle prefixing object keys with the bucket name)
-     * @param {number} [minGapWeight=100] - minimum weight of a gap for it to be
-     *   added in the cache
-     * @param {number} [triggerSaveGapWeight] - cumulative weight to wait for
-     *   before saving the current building gap. Cannot be greater than
-     *   `gapCacheProxy.maxGapWeight` (the value is thresholded to `maxGapWeight`
-     *   otherwise). Defaults to `gapCacheProxy.maxGapWeight / 2`.
-     * @return {undefined}
-     */
-    refreshGapCache(
-        gapCacheProxy: GapCacheInterface,
-        minGapWeight?: number,
-        triggerSaveGapWeight?: number
-    ): void {
-        if (this.vFormat !== BucketVersioningKeyFormat.v0) {
-            return;
-        }
-        if (this._gapCaching.state === GapCachingState.NoGapCache) {
-            this._gapCaching = {
-                state: GapCachingState.UnknownGap,
-                gapCache: gapCacheProxy,
-            };
-        }
-        const refreshedBuildingParams: GapBuildingParams = {
-            minGapWeight: minGapWeight || 100,
-            triggerSaveGapWeight: triggerSaveGapWeight
-                || Math.trunc(gapCacheProxy.maxGapWeight / 2),
-            initTimestamp: Date.now(),
-        };
-        if (this._gapBuilding.state === GapBuildingState.Building) {
-            // refreshed params will be applied as soon as the current building gap is saved
-            this._refreshedBuildingParams = refreshedBuildingParams;
-        } else {
-            this._gapBuilding = {
-                state: GapBuildingState.NotBuilding,
-                gapCache: gapCacheProxy,
-                params: refreshedBuildingParams,
-            };
-        }
-    }
-
-    /**
-     * Trigger a lookup of the closest upcoming or already skippable gap.
-     *
-     * @param {string} fromKey - lookup a gap not before 'fromKey'
-     * @return {undefined} - the lookup is asynchronous and its
-     * response is handled inside this function
-     */
-    _triggerGapLookup(gapCaching: GapCachingInfo_NoCachedGap, fromKey: string): void {
-        this._gapCaching = {
-            state: GapCachingState.GapLookupInProgress,
-            gapCache: gapCaching.gapCache,
-        };
-        const maxKey = this.prefix ? inc(this.prefix) : undefined;
-        gapCaching.gapCache.lookupGap(fromKey, maxKey).then(_gap => {
-            const gap = <GapSetEntry | null> _gap;
-            if (gap) {
-                this._gapCaching = {
-                    state: GapCachingState.GapCached,
-                    gapCache: gapCaching.gapCache,
-                    gapCached: gap,
-                };
-            } else {
-                this._gapCaching = {
-                    state: GapCachingState.NoMoreGap,
-                };
-            }
-        });
-    }
-
-    _checkGapOnMasterDeleteMarker(key: string): FilterReturnValue {
-        switch (this._gapBuilding.state) {
-        case GapBuildingState.Disabled:
-        case GapBuildingState.Expired:
-            break;
-        case GapBuildingState.NotBuilding:
-            this._createBuildingGap(key, 1);
-            break;
-        case GapBuildingState.Building:
-            this._updateBuildingGap(key);
-            break;
-        }
-        if (this._gapCaching.state === GapCachingState.GapCached) {
-            const { gapCached } = this._gapCaching;
-            if (key >= gapCached.firstKey) {
-                if (key <= gapCached.lastKey) {
-                    // we are inside the last looked up cached gap: transition to
-                    // 'SkippingGapV0' state
-                    this.setState(<DelimiterMasterFilterState_SkippingGapV0> {
-                        id: DelimiterMasterFilterStateId.SkippingGapV0,
-                    });
-                    // cut the current gap before skipping, it will be merged or
-                    // chained with the existing one (depending on its weight)
-                    if (this._gapBuilding.state === GapBuildingState.Building) {
-                        // substract 1 from the weight because we are going to chain this gap,
-                        // which has an overlap of one key.
-                        this._gapBuilding.gap.weight -= 1;
-                        this._cutBuildingGap();
-                    }
-                    return FILTER_SKIP;
-                }
-                // as we are past the cached gap, we will need another lookup
-                this._gapCaching = {
-                    state: GapCachingState.UnknownGap,
-                    gapCache: this._gapCaching.gapCache,
-                };
-            }
-        }
-        if (this._gapCaching.state === GapCachingState.UnknownGap) {
-            this._triggerGapLookup(this._gapCaching, key);
-        }
-        return FILTER_ACCEPT;
-    }
-
-    filter_onNewMasterKeyV0(key: string, value: string): FilterReturnValue {
-        // if this master key is a delete marker, accept it without
-        // adding the version to the contents
-        if (Version.isDeleteMarker(value)) {
-            // update the state to start skipping versions of the new master key
-            this.setState(<DelimiterMasterFilterState_SkippingVersionsV0> {
-                id: DelimiterMasterFilterStateId.SkippingVersionsV0,
-                masterKey: key,
-            });
-            return this._checkGapOnMasterDeleteMarker(key);
-        }
-        if (Version.isPHD(value)) {
-            // master version is a PHD version: wait for the first
-            // following version that will be considered as the actual
-            // master key
-            this.setState(<DelimiterMasterFilterState_WaitVersionAfterPHDV0> {
-                id: DelimiterMasterFilterStateId.WaitVersionAfterPHDV0,
-                masterKey: key,
-            });
-            return FILTER_ACCEPT;
-        }
-        // cut the current gap as soon as a non-deleted entry is seen
-        this._cutBuildingGap();
-
-        if (key.startsWith(DbPrefixes.Replay)) {
-            // skip internal replay prefix entirely
-            this.setState(<DelimiterFilterState_SkippingPrefix> {
-                id: DelimiterFilterStateId.SkippingPrefix,
-                prefix: DbPrefixes.Replay,
-            });
-            return FILTER_SKIP;
-        }
-        if (this._reachedMaxKeys()) {
-            return FILTER_END;
-        }
-
-        const commonPrefix = this.addCommonPrefixOrContents(key, value);
-        if (commonPrefix) {
-            // transition into SkippingPrefix state to skip all following keys
-            // while they start with the same prefix
-            this.setState(<DelimiterFilterState_SkippingPrefix> {
-                id: DelimiterFilterStateId.SkippingPrefix,
-                prefix: commonPrefix,
-            });
-            return FILTER_ACCEPT;
-        }
-        // update the state to start skipping versions of the new master key
-        this.setState(<DelimiterMasterFilterState_SkippingVersionsV0> {
-            id: DelimiterMasterFilterStateId.SkippingVersionsV0,
-            masterKey: key,
-        });
-        return FILTER_ACCEPT;
-    }
-
-    keyHandler_NotSkippingPrefixNorVersionsV0(key: string, value: string): FilterReturnValue {
-        return this.filter_onNewMasterKeyV0(key, value);
-    }
-
-    filter_onNewMasterKeyV1(key: string, value: string): FilterReturnValue {
-        // if this master key is a delete marker, accept it without
-        // adding the version to the contents
-        if (Version.isDeleteMarker(value)) {
-            return FILTER_ACCEPT;
-        }
-        // use base Delimiter's implementation
-        return this.keyHandler_NotSkipping_Delimiter(key, value);
-    }
-
-    keyHandler_NotSkippingPrefixNorVersionsV1(key: string, value: string): FilterReturnValue {
-        return this.filter_onNewMasterKeyV1(key, value);
-    }
-
-    keyHandler_SkippingVersionsV0(key: string, value: string): FilterReturnValue {
-        /* In the SkippingVersionsV0 state, skip all version keys
-         * (<key><versionIdSeparator><version>) */
-        const versionIdIndex = key.indexOf(VID_SEP);
-        if (versionIdIndex !== -1) {
-            // version keys count in the building gap weight because they must
-            // also be listed until skipped
-            if (this._gapBuilding.state === GapBuildingState.Building) {
-                this._updateBuildingGap(key);
-            }
-            return FILTER_SKIP;
-        }
-        return this.filter_onNewMasterKeyV0(key, value);
-    }
-
-    keyHandler_WaitVersionAfterPHDV0(key: string, value: string): FilterReturnValue {
-        // After a PHD key is encountered, the next version key of the
-        // same object if it exists is the new master key, hence
-        // consider it as such and call 'onNewMasterKeyV0' (the test
-        // 'masterKey == phdKey' is probably redundant when we already
-        // know we have a versioned key, since all objects in v0 have
-        // a master key, but keeping it in doubt)
-        const { masterKey: phdKey } = <DelimiterMasterFilterState_WaitVersionAfterPHDV0> this.state;
-        const versionIdIndex = key.indexOf(VID_SEP);
-        if (versionIdIndex !== -1) {
-            const masterKey = key.slice(0, versionIdIndex);
-            if (masterKey === phdKey) {
-                return this.filter_onNewMasterKeyV0(masterKey, value);
-            }
-        }
-        return this.filter_onNewMasterKeyV0(key, value);
-    }
-
-    keyHandler_SkippingGapV0(key: string, value: string): FilterReturnValue {
-        const { gapCache, gapCached } = <GapCachingInfo_GapCached> this._gapCaching;
-        if (key <= gapCached.lastKey) {
-            return FILTER_SKIP;
-        }
-        this._gapCaching = {
-            state: GapCachingState.UnknownGap,
-            gapCache,
-        };
-        this.setState(<DelimiterMasterFilterState_SkippingVersionsV0> {
-            id: DelimiterMasterFilterStateId.SkippingVersionsV0,
-        });
-        // Start a gap with weight=0 from the latest skippable key. This will
-        // allow to extend the gap just skipped with a chained gap in case
-        // other delete markers are seen after the existing gap is skipped.
-        this._createBuildingGap(gapCached.lastKey, 0, gapCached.weight);
-
-        return this.handleKey(key, value);
-    }
-
-    skippingBase(): string | undefined {
-        switch (this.state.id) {
-        case DelimiterMasterFilterStateId.SkippingVersionsV0:
-            const { masterKey } = <DelimiterMasterFilterState_SkippingVersionsV0> this.state;
-            return masterKey + inc(VID_SEP);
-
-        case DelimiterMasterFilterStateId.SkippingGapV0:
-            const { gapCached } = <GapCachingInfo_GapCached> this._gapCaching;
-            return gapCached.lastKey;
-
-        default:
-            return super.skippingBase();
-        }
-    }
-
-    result(): ResultObject {
-        this._cutBuildingGap();
-        return super.result();
-    }
-
-    _checkRefreshedBuildingParams(params: GapBuildingParams): GapBuildingParams {
-        if (this._refreshedBuildingParams) {
-            const newParams = this._refreshedBuildingParams;
-            this._refreshedBuildingParams = null;
-            return newParams;
-        }
-        return params;
-    }
-
-    /**
-     * Save the gap being built if allowed (i.e. still within the
-     * allocated exposure time window).
-     *
-     * @return {boolean} - true if the gap was saved, false if we are
-     * outside the allocated exposure time window.
-     */
-    _saveBuildingGap(): boolean {
-        const { gapCache, params, gap, gapWeight } =
-              <GapBuildingInfo_Building> this._gapBuilding;
-        const totalElapsed = Date.now() - params.initTimestamp;
-        if (totalElapsed >= gapCache.exposureDelayMs) {
-            this._gapBuilding = {
-                state: GapBuildingState.Expired,
-            };
-            this._refreshedBuildingParams = null;
-            return false;
-        }
-        const { firstKey, lastKey, weight } = gap;
-        gapCache.setGap(firstKey, lastKey, weight);
-        this._gapBuilding = {
-            state: GapBuildingState.Building,
-            gapCache,
-            params: this._checkRefreshedBuildingParams(params),
-            gap: {
-                firstKey: gap.lastKey,
-                lastKey: gap.lastKey,
-                weight: 0,
-            },
-            gapWeight,
-        };
-        return true;
-    }
-
-    /**
-     * Create a new gap to be extended afterwards
-     *
-     * @param {string} newKey - gap's first key
-     * @param {number} startWeight - initial weight of the building gap (usually 0 or 1)
-     * @param {number} [cachedWeight] - if continuing a cached gap, weight of the existing
-     *   cached portion
-     * @return {undefined}
-     */
-    _createBuildingGap(newKey: string, startWeight: number, cachedWeight?: number): void {
-        if (this._gapBuilding.state === GapBuildingState.NotBuilding) {
-            const { gapCache, params } = <GapBuildingInfo_NotBuilding> this._gapBuilding;
-            this._gapBuilding = {
-                state: GapBuildingState.Building,
-                gapCache,
-                params: this._checkRefreshedBuildingParams(params),
-                gap: {
-                    firstKey: newKey,
-                    lastKey: newKey,
-                    weight: startWeight,
-                },
-                gapWeight: (cachedWeight || 0) + startWeight,
-            };
-        }
-    }
-
-    _updateBuildingGap(newKey: string): void {
-        const gapBuilding = <GapBuildingInfo_Building> this._gapBuilding;
-        const { params, gap } = gapBuilding;
-        gap.lastKey = newKey;
-        gap.weight += 1;
-        gapBuilding.gapWeight += 1;
-        // the GapCache API requires updating a gap regularly because it can only split
-        // it once per update, by the known last key. In practice the default behavior
-        // is to trigger an update after a number of keys that is half the maximum weight.
-        // It is also useful for other listings to benefit from the cache sooner.
-        if (gapBuilding.gapWeight >= params.minGapWeight &&
-            gap.weight >= params.triggerSaveGapWeight) {
-            this._saveBuildingGap();
-        }
-    }
-
-    _cutBuildingGap(): void {
-        if (this._gapBuilding.state === GapBuildingState.Building) {
-            let gapBuilding = <GapBuildingInfo_Building> this._gapBuilding;
-            let { gapCache, params, gap, gapWeight } = gapBuilding;
-            // only set gaps that are significant enough in weight and
-            // with a non-empty extension
-            if (gapWeight >= params.minGapWeight && gap.weight > 0) {
-                // we're done if we were not allowed to save the gap
-                if (!this._saveBuildingGap()) {
-                    return;
-                }
-                // params may have been refreshed, reload them
-                gapBuilding = <GapBuildingInfo_Building> this._gapBuilding;
-                params = gapBuilding.params;
-            }
-            this._gapBuilding = {
-                state: GapBuildingState.NotBuilding,
-                gapCache,
-                params,
-            };
-        }
-    }
-}

lib/algos/list/delimiterNonCurrent.js

@@ -1,202 +0,0 @@
-const { DelimiterVersions } = require('./delimiterVersions');
-const { FILTER_END, FILTER_SKIP } = require('./tools');
-
-const TRIM_METADATA_MIN_BLOB_SIZE = 10000;
-
-/**
- * Handle object listing with parameters. This extends the base class DelimiterVersions
- * to return the raw non-current versions objects.
- */
-class DelimiterNonCurrent extends DelimiterVersions {
-    /**
-     * Delimiter listing of non-current versions.
-     * @param {Object}  parameters                  - listing parameters
-     * @param {String}  parameters.keyMarker        - key marker
-     * @param {String}  parameters.versionIdMarker  - version id marker
-     * @param {String}  parameters.beforeDate       - limit the response to keys with stale date older than beforeDate.
-     * “stale date” is the date on when a version becomes non-current.
-     * @param {Number} parameters.maxScannedLifecycleListingEntries - max number of entries to be scanned
-     * @param {String} parameters.excludedDataStoreName - exclude dataStoreName matches from the versions
-     * @param {RequestLogger} logger                - The logger of the request
-     * @param {String} [vFormat]                    - versioning key format
-     */
-    constructor(parameters, logger, vFormat) {
-        super(parameters, logger, vFormat);
-
-        this.beforeDate = parameters.beforeDate;
-        this.excludedDataStoreName = parameters.excludedDataStoreName;
-        this.maxScannedLifecycleListingEntries = parameters.maxScannedLifecycleListingEntries;
-
-        // internal state
-        this.prevKey = null;
-        this.staleDate = null;
-
-        this.scannedKeys = 0;
-    }
-
-    getLastModified(value) {
-        let lastModified;
-        try {
-            const v = JSON.parse(value);
-            lastModified = v['last-modified'];
-        } catch (e) {
-            this.logger.warn('could not parse Object Metadata while listing',
-                {
-                    method: 'getLastModified',
-                    err: e.toString(),
-                });
-        }
-        return lastModified;
-    }
-
-    // Overwrite keyHandler_SkippingVersions to include the last version from the previous listing.
-    // The creation (last-modified) date of this version will be the stale date for the following version.
-    // eslint-disable-next-line camelcase
-    keyHandler_SkippingVersions(key, versionId, value) {
-        if (key === this.keyMarker) {
-            // since the nonversioned key equals the marker, there is
-            // necessarily a versionId in this key
-            const _versionId = versionId;
-            if (_versionId < this.versionIdMarker) {
-                // skip all versions until marker
-                return FILTER_SKIP;
-            }
-        }
-        this.setState({
-            id: 1 /* NotSkipping */,
-        });
-        return this.handleKey(key, versionId, value);
-    }
-
-    filter(obj) {
-        if (this.maxScannedLifecycleListingEntries && this.scannedKeys >= this.maxScannedLifecycleListingEntries) {
-            this.IsTruncated = true;
-            this.logger.info('listing stopped due to reaching the maximum scanned entries limit',
-                {
-                    maxScannedLifecycleListingEntries: this.maxScannedLifecycleListingEntries,
-                    scannedKeys: this.scannedKeys,
-                });
-            return FILTER_END;
-        }
-        ++this.scannedKeys;
-        return super.filter(obj);
-    }
-
-    /**
-     * NOTE: Each version of a specific key is sorted from the latest to the oldest
-     * thanks to the way version ids are generated.
-     * DESCRIPTION: Skip the version if it represents the master key, but keep its last-modified date in memory,
-     * which will be the stale date of the following version.
-     * The following version is pushed only:
-     * - if the "stale date" (picked up from the previous version) is available (JSON.parse has not failed),
-     * - if "beforeDate" is not specified or if specified and the "stale date" is older.
-     * - if "excludedDataStoreName" is not specified or if specified and the data store name is different
-     * The in-memory "stale date" is then updated with the version's last-modified date to be used for
-     * the following version.
-     * The process stops and returns the available results if either:
-     * - no more metadata key is left to be processed
-     * - the listing reaches the maximum number of key to be returned
-     * - the internal timeout is reached
-     *  @param {String} key   - The key to add
-     *  @param {String} versionId - The version id
-     *  @param {String} value - The value of the key
-     *  @return {undefined}
-     */
-    addVersion(key, versionId, value) {
-        this.nextKeyMarker = key;
-        this.nextVersionIdMarker = versionId;
-
-        // Skip the version if it represents the non-current version, but keep its last-modified date,
-        // which will be the stale date of the following version.
-        const isCurrentVersion = key !== this.prevKey;
-        if (isCurrentVersion) {
-            this.staleDate = this.getLastModified(value);
-            this.prevKey = key;
-            return;
-        }
-
-        // The following version is pushed only:
-        // - if the "stale date" (picked up from the previous version) is available (JSON.parse has not failed),
-        // - if "beforeDate" is not specified or if specified and the "stale date" is older.
-        // - if "excludedDataStoreName" is not specified or if specified and the data store name is different
-        let lastModified;
-        if (this.staleDate && (!this.beforeDate || this.staleDate < this.beforeDate)) {
-            const parsedValue = this._parse(value);
-            // if parsing fails, skip the key.
-            if (parsedValue) {
-                const dataStoreName = parsedValue.dataStoreName;
-                lastModified = parsedValue['last-modified'];
-                if (!this.excludedDataStoreName || dataStoreName !== this.excludedDataStoreName) {
-                    const s = this._stringify(parsedValue, this.staleDate);
-                    // check that _stringify succeeds to only push objects with a defined staleDate.
-                    if (s) {
-                        this.Versions.push({ key, value: s });
-                        ++this.keys;
-                    }
-                }
-            }
-        }
-
-        // The in-memory "stale date" is then updated with the version's last-modified date to be used for
-        // the following version.
-        this.staleDate = lastModified || this.getLastModified(value);
-
-        return;
-    }
-
-    /**
-     * Parses the stringified entry's value and remove the location property if too large.
-     * @param {string} s - sringified value
-     * @return {object} p - undefined if parsing fails, otherwise it contains the parsed value.
-     */
-    _parse(s) {
-        let p;
-        try {
-            p = JSON.parse(s);
-            if (s.length >= TRIM_METADATA_MIN_BLOB_SIZE) {
-                delete p.location;
-            }
-        } catch (e) {
-            this.logger.warn('Could not parse Object Metadata while listing', {
-                method: 'DelimiterNonCurrent._parse',
-                err: e.toString(),
-            });
-        }
-        return p;
-    }
-
-    _stringify(parsedMD, staleDate) {
-        const p = parsedMD;
-        let s = undefined;
-        p.staleDate = staleDate;
-        try {
-            s = JSON.stringify(p);
-        } catch (e) {
-            this.logger.warn('could not stringify Object Metadata while listing', {
-                method: 'DelimiterNonCurrent._stringify',
-                err: e.toString(),
-            });
-        }
-        return s;
-    }
-
-    result() {
-        const { Versions, IsTruncated, NextKeyMarker, NextVersionIdMarker } = super.result();
-
-        const result = {
-            Contents: Versions,
-            IsTruncated,
-        };
-
-        if (NextKeyMarker) {
-            result.NextKeyMarker = NextKeyMarker;
-        }
-
-        if (NextVersionIdMarker) {
-            result.NextVersionIdMarker = NextVersionIdMarker;
-        }
-
-        return result;
-    }
-}
-module.exports = { DelimiterNonCurrent };

lib/algos/list/delimiterOrphanDeleteMarker.js

@@ -1,204 +0,0 @@
-const DelimiterVersions = require('./delimiterVersions').DelimiterVersions;
-const { FILTER_END } = require('./tools');
-const TRIM_METADATA_MIN_BLOB_SIZE = 10000;
-/**
- * Handle object listing with parameters. This extends the base class DelimiterVersions
- * to return the orphan delete markers. Orphan delete markers are also
- * refered as expired object delete marker.
- * They are delete marker with zero noncurrent versions.
- */
-class DelimiterOrphanDeleteMarker extends DelimiterVersions {
-    /**
-     * Delimiter listing of orphan delete markers.
-     * @param {Object}  parameters            - listing parameters
-     * @param {String}  parameters.beforeDate - limit the response to keys older than beforeDate
-     * @param {Number} parameters.maxScannedLifecycleListingEntries - max number of entries to be scanned
-     * @param {RequestLogger} logger          - The logger of the request
-     * @param {String} [vFormat]              - versioning key format
-     */
-    constructor(parameters, logger, vFormat) {
-        const {
-            marker,
-            maxKeys,
-            prefix,
-            beforeDate,
-            maxScannedLifecycleListingEntries,
-        } = parameters;
-
-        const versionParams = {
-            // The orphan delete marker logic uses the term 'marker' instead of 'keyMarker',
-            // as the latter could suggest the presence of a 'versionIdMarker'.
-            keyMarker: marker,
-            maxKeys,
-            prefix,
-        };
-        super(versionParams, logger, vFormat);
-
-        this.maxScannedLifecycleListingEntries = maxScannedLifecycleListingEntries;
-        this.beforeDate = beforeDate;
-        // this.prevKeyName is used as a marker for the next listing when the current one reaches its entry limit.
-        // We cannot rely on this.keyName, as it contains the name of the current key.
-        // In the event of a listing interruption due to reaching the maximum scanned entries,
-        // relying on this.keyName would cause the next listing to skip the current key because S3 starts
-        // listing after the marker.
-        this.prevKeyName = null;
-        this.keyName = null;
-        this.value = null;
-        this.scannedKeys = 0;
-    }
-
-    _reachedMaxKeys() {
-        if (this.keys >= this.maxKeys) {
-            return true;
-        }
-        return false;
-    }
-
-    _addOrphan() {
-        const parsedValue = this._parse(this.value);
-        // if parsing fails, skip the key.
-        if (parsedValue) {
-            const lastModified = parsedValue['last-modified'];
-            const isDeleteMarker = parsedValue.isDeleteMarker;
-            // We then check if the orphan version is a delete marker and if it is older than the "beforeDate"
-            if ((!this.beforeDate || (lastModified && lastModified < this.beforeDate)) && isDeleteMarker) {
-                // Prefer returning an untrimmed data rather than stopping the service in case of parsing failure.
-                const s = this._stringify(parsedValue) || this.value;
-                this.Versions.push({ key: this.keyName, value: s });
-                this.nextKeyMarker = this.keyName;
-                ++this.keys;
-            }
-        }
-    }
-
-    /**
-     * Parses the stringified entry's value and remove the location property if too large.
-     * @param {string} s - sringified value
-     * @return {object} p - undefined if parsing fails, otherwise it contains the parsed value.
-     */
-    _parse(s) {
-        let p;
-        try {
-            p = JSON.parse(s);
-            if (s.length >= TRIM_METADATA_MIN_BLOB_SIZE) {
-                delete p.location;
-            }
-        } catch (e) {
-            this.logger.warn('Could not parse Object Metadata while listing', {
-                method: 'DelimiterOrphanDeleteMarker._parse',
-                err: e.toString(),
-            });
-        }
-        return p;
-    }
-
-    _stringify(value) {
-        const p = value;
-        let s = undefined;
-        try {
-            s = JSON.stringify(p);
-        } catch (e) {
-            this.logger.warn('could not stringify Object Metadata while listing',
-                {
-                    method: 'DelimiterOrphanDeleteMarker._stringify',
-                    err: e.toString(),
-                });
-        }
-        return s;
-    }
-    /**
-     * The purpose of _isMaxScannedEntriesReached is to restrict the number of scanned entries,
-     * thus controlling resource overhead (CPU...).
-     * @return {boolean} isMaxScannedEntriesReached - true if the maximum limit on the number
-     * of entries scanned has been reached, false otherwise.
-    */
-    _isMaxScannedEntriesReached() {
-        return this.maxScannedLifecycleListingEntries && this.scannedKeys >= this.maxScannedLifecycleListingEntries;
-    }
-
-    filter(obj) {
-        if (this._isMaxScannedEntriesReached()) {
-            this.nextKeyMarker = this.prevKeyName;
-            this.IsTruncated = true;
-            this.logger.info('listing stopped due to reaching the maximum scanned entries limit',
-                {
-                    maxScannedLifecycleListingEntries: this.maxScannedLifecycleListingEntries,
-                    scannedKeys: this.scannedKeys,
-                });
-            return FILTER_END;
-        }
-        ++this.scannedKeys;
-        return super.filter(obj);
-    }
-
-    /**
-     * NOTE: Each version of a specific key is sorted from the latest to the oldest
-     * thanks to the way version ids are generated.
-     * DESCRIPTION: For a given key, the latest version is kept in memory since it is the current version.
-     * If the following version reference a new key, it means that the previous one was an orphan version.
-     * We then check if the orphan version is a delete marker and if it is older than the "beforeDate"
-     * The process stops and returns the available results if either:
-     * - no more metadata key is left to be processed
-     * - the listing reaches the maximum number of key to be returned
-     * - the internal timeout is reached
-     * NOTE: we cannot leverage MongoDB to list keys older than "beforeDate"
-     * because then we will not be able to assess its orphanage.
-     *  @param {String} key   - The object key.
-     * @param {String} versionId   - The object version id.
-     *  @param {String} value - The value of the key
-     *  @return {undefined}
-     */
-    addVersion(key, versionId, value) {
-        // For a given key, the youngest version is kept in memory since it represents the current version.
-        if (key !== this.keyName) {
-            // If this.value is defined, it means that <this.keyName, this.value> pair is "allowed" to be an orphan.
-            if (this.value) {
-                this._addOrphan();
-            }
-            this.prevKeyName = this.keyName;
-            this.keyName = key;
-            this.value = value;
-
-            return;
-        }
-
-        // If the key is not the current version, we can skip it in the next listing
-        // in the case where the current listing is interrupted due to reaching the maximum scanned entries.
-        this.prevKeyName = key;
-        this.keyName = key;
-        this.value = null;
-
-        return;
-    }
-
-    result() {
-        // Only check for remaining last orphan delete marker if the listing is not interrupted.
-        // This will help avoid false positives.
-        if (!this._isMaxScannedEntriesReached()) {
-            // The following check makes sure the last orphan delete marker is not forgotten.
-            if (this.keys < this.maxKeys) {
-                if (this.value) {
-                    this._addOrphan();
-                }
-            // The following make sure that if makeKeys is reached, isTruncated is set to true.
-            // We moved the "isTruncated" from _reachedMaxKeys to make sure we take into account the last entity
-            // if listing is truncated right before the last entity and the last entity is a orphan delete marker.
-            } else {
-                this.IsTruncated = this.maxKeys > 0;
-            }
-        }
-
-        const result = {
-            Contents: this.Versions,
-            IsTruncated: this.IsTruncated,
-        };
-
-        if (this.IsTruncated) {
-            result.NextMarker = this.nextKeyMarker;
-        }
-
-        return result;
-    }
-}
-
-module.exports = { DelimiterOrphanDeleteMarker };

lib/algos/list/delimiterVersions.js

@@ -0,0 +1,283 @@
+'use strict'; // eslint-disable-line strict
+
+const Delimiter = require('./delimiter').Delimiter;
+const Version = require('../../versioning/Version').Version;
+const VSConst = require('../../versioning/constants').VersioningConstants;
+const { inc, FILTER_END, FILTER_ACCEPT, FILTER_SKIP, SKIP_NONE } =
+    require('./tools');
+
+const VID_SEP = VSConst.VersionId.Separator;
+const { DbPrefixes, BucketVersioningKeyFormat } = VSConst;
+
+/**
+ * Handle object listing with parameters
+ *
+ * @prop {String[]} CommonPrefixes     - 'folders' defined by the delimiter
+ * @prop {String[]} Contents           - 'files' to list
+ * @prop {Boolean} IsTruncated         - truncated listing flag
+ * @prop {String|undefined} NextMarker - marker per amazon format
+ * @prop {Number} keys                 - count of listed keys
+ * @prop {String|undefined} delimiter  - separator per amazon format
+ * @prop {String|undefined} prefix     - prefix per amazon format
+ * @prop {Number} maxKeys              - number of keys to list
+ */
+class DelimiterVersions extends Delimiter {
+    constructor(parameters, logger, vFormat) {
+        super(parameters, logger, vFormat);
+        // specific to version listing
+        this.keyMarker = parameters.keyMarker;
+        this.versionIdMarker = parameters.versionIdMarker;
+        // internal state
+        this.masterKey = undefined;
+        this.masterVersionId = undefined;
+        // listing results
+        this.NextMarker = parameters.keyMarker;
+        this.NextVersionIdMarker = undefined;
+        this.inReplayPrefix = false;
+
+        Object.assign(this, {
+            [BucketVersioningKeyFormat.v0]: {
+                genMDParams: this.genMDParamsV0,
+                filter: this.filterV0,
+                skipping: this.skippingV0,
+            },
+            [BucketVersioningKeyFormat.v1]: {
+                genMDParams: this.genMDParamsV1,
+                filter: this.filterV1,
+                skipping: this.skippingV1,
+            },
+        }[this.vFormat]);
+    }
+
+    genMDParamsV0() {
+        const params = {};
+        if (this.parameters.prefix) {
+            params.gte = this.parameters.prefix;
+            params.lt = inc(this.parameters.prefix);
+        }
+        if (this.parameters.keyMarker) {
+            if (params.gte && params.gte > this.parameters.keyMarker) {
+                return params;
+            }
+            delete params.gte;
+            if (this.parameters.versionIdMarker) {
+                // versionIdMarker should always come with keyMarker
+                // but may not be the other way around
+                params.gt = this.parameters.keyMarker
+                    + VID_SEP
+                    + this.parameters.versionIdMarker;
+            } else {
+                params.gt = inc(this.parameters.keyMarker + VID_SEP);
+            }
+        }
+        return params;
+    }
+
+    genMDParamsV1() {
+        // return an array of two listing params sets to ask for
+        // synchronized listing of M and V ranges
+        const params = [{}, {}];
+        if (this.parameters.prefix) {
+            params[0].gte = DbPrefixes.Master + this.parameters.prefix;
+            params[0].lt = DbPrefixes.Master + inc(this.parameters.prefix);
+            params[1].gte = DbPrefixes.Version + this.parameters.prefix;
+            params[1].lt = DbPrefixes.Version + inc(this.parameters.prefix);
+        } else {
+            params[0].gte = DbPrefixes.Master;
+            params[0].lt = inc(DbPrefixes.Master); // stop after the last master key
+            params[1].gte = DbPrefixes.Version;
+            params[1].lt = inc(DbPrefixes.Version); // stop after the last version key
+        }
+        if (this.parameters.keyMarker) {
+            if (params[1].gte <= DbPrefixes.Version + this.parameters.keyMarker) {
+                delete params[0].gte;
+                delete params[1].gte;
+                params[0].gt = DbPrefixes.Master + inc(this.parameters.keyMarker + VID_SEP);
+                if (this.parameters.versionIdMarker) {
+                    // versionIdMarker should always come with keyMarker
+                    // but may not be the other way around
+                    params[1].gt = DbPrefixes.Version
+                        + this.parameters.keyMarker
+                        + VID_SEP
+                        + this.parameters.versionIdMarker;
+                } else {
+                    params[1].gt = DbPrefixes.Version
+                        + inc(this.parameters.keyMarker + VID_SEP);
+                }
+            }
+        }
+        return params;
+    }
+
+    /**
+     * Used to synchronize listing of M and V prefixes by object key
+     *
+     * @param {object} masterObj object listed from first range
+     * returned by genMDParamsV1() (the master keys range)
+     * @param {object} versionObj object listed from second range
+     * returned by genMDParamsV1() (the version keys range)
+     * @return {number} comparison result:
+     *   * -1 if master key < version key
+     *   * 1 if master key > version key
+     */
+    compareObjects(masterObj, versionObj) {
+        const masterKey = masterObj.key.slice(DbPrefixes.Master.length);
+        const versionKey = versionObj.key.slice(DbPrefixes.Version.length);
+        return masterKey < versionKey ? -1 : 1;
+    }
+
+    /**
+     *  Add a (key, versionId, value) tuple to the listing.
+     *  Set the NextMarker to the current key
+     *  Increment the keys counter
+     *  @param {object} obj             - the entry to add to the listing result
+     *  @param {String} obj.key         - The key to add
+     *  @param {String} obj.versionId   - versionId
+     *  @param {String} obj.value       - The value of the key
+     *  @return {Boolean} - indicates if iteration should continue
+     */
+    addContents(obj) {
+        if (this._reachedMaxKeys()) {
+            return FILTER_END;
+        }
+        this.Contents.push({
+            key: obj.key,
+            value: this.trimMetadata(obj.value),
+            versionId: obj.versionId,
+        });
+        this.NextMarker = obj.key;
+        this.NextVersionIdMarker = obj.versionId;
+        ++this.keys;
+        return FILTER_ACCEPT;
+    }
+
+    /**
+     *  Filter to apply on each iteration if bucket is in v0
+     *  versioning key format, based on:
+     *  - prefix
+     *  - delimiter
+     *  - maxKeys
+     *  The marker is being handled directly by levelDB
+     *  @param {Object} obj       - The key and value of the element
+     *  @param {String} obj.key   - The key of the element
+     *  @param {String} obj.value - The value of the element
+     *  @return {number}          - indicates if iteration should continue
+     */
+    filterV0(obj) {
+        if (obj.key.startsWith(DbPrefixes.Replay)) {
+            this.inReplayPrefix = true;
+            return FILTER_SKIP;
+        }
+        this.inReplayPrefix = false;
+
+        if (Version.isPHD(obj.value)) {
+            // return accept to avoid skipping the next values in range
+            return FILTER_ACCEPT;
+        }
+        return this.filterCommon(obj.key, obj.value);
+    }
+
+    /**
+     *  Filter to apply on each iteration if bucket is in v1
+     *  versioning key format, based on:
+     *  - prefix
+     *  - delimiter
+     *  - maxKeys
+     *  The marker is being handled directly by levelDB
+     *  @param {Object} obj       - The key and value of the element
+     *  @param {String} obj.key   - The key of the element
+     *  @param {String} obj.value - The value of the element
+     *  @return {number}          - indicates if iteration should continue
+     */
+    filterV1(obj) {
+        if (Version.isPHD(obj.value)) {
+            // return accept to avoid skipping the next values in range
+            return FILTER_ACCEPT;
+        }
+        // this function receives both M and V keys, but their prefix
+        // length is the same so we can remove their prefix without
+        // looking at the type of key
+        return this.filterCommon(obj.key.slice(DbPrefixes.Master.length),
+            obj.value);
+    }
+
+    filterCommon(key, value) {
+        if (this.prefix && !key.startsWith(this.prefix)) {
+            return FILTER_SKIP;
+        }
+        let nonversionedKey;
+        let versionId = undefined;
+        const versionIdIndex = key.indexOf(VID_SEP);
+        if (versionIdIndex < 0) {
+            nonversionedKey = key;
+            this.masterKey = key;
+            this.masterVersionId =
+                Version.from(value).getVersionId() || 'null';
+            versionId = this.masterVersionId;
+        } else {
+            nonversionedKey = key.slice(0, versionIdIndex);
+            versionId = key.slice(versionIdIndex + 1);
+            // skip a version key if it is the master version
+            if (this.masterKey === nonversionedKey && this.masterVersionId === versionId) {
+                return FILTER_SKIP;
+            }
+            this.masterKey = undefined;
+            this.masterVersionId = undefined;
+        }
+        if (this.delimiter) {
+            const baseIndex = this.prefix ? this.prefix.length : 0;
+            const delimiterIndex = nonversionedKey.indexOf(this.delimiter, baseIndex);
+            if (delimiterIndex >= 0) {
+                return this.addCommonPrefix(nonversionedKey, delimiterIndex);
+            }
+        }
+        return this.addContents({ key: nonversionedKey, value, versionId });
+    }
+
+    skippingV0() {
+        if (this.inReplayPrefix) {
+            return DbPrefixes.Replay;
+        }
+        if (this.NextMarker) {
+            const index = this.NextMarker.lastIndexOf(this.delimiter);
+            if (index === this.NextMarker.length - 1) {
+                return this.NextMarker;
+            }
+        }
+        return SKIP_NONE;
+    }
+
+    skippingV1() {
+        const skipV0 = this.skippingV0();
+        if (skipV0 === SKIP_NONE) {
+            return SKIP_NONE;
+        }
+        // skip to the same object key in both M and V range listings
+        return [DbPrefixes.Master + skipV0,
+            DbPrefixes.Version + skipV0];
+    }
+
+    /**
+     *  Return an object containing all mandatory fields to use once the
+     *  iteration is done, doesn't show a NextMarker field if the output
+     *  isn't truncated
+     *  @return {Object} - following amazon format
+     */
+    result() {
+        /* NextMarker is only provided when delimiter is used.
+         * specified in v1 listing documentation
+         * http://docs.aws.amazon.com/AmazonS3/latest/API/RESTBucketGET.html
+         */
+        return {
+            CommonPrefixes: this.CommonPrefixes,
+            Versions: this.Contents,
+            IsTruncated: this.IsTruncated,
+            NextKeyMarker: this.IsTruncated ? this.NextMarker : undefined,
+            NextVersionIdMarker: this.IsTruncated ?
+                this.NextVersionIdMarker : undefined,
+            Delimiter: this.delimiter,
+        };
+    }
+}
+
+module.exports = { DelimiterVersions };

lib/algos/list/delimiterVersions.ts

@@ -1,535 +0,0 @@
-'use strict'; // eslint-disable-line strict
-
-const Extension = require('./Extension').default;
-
-import {
-    FilterState,
-    FilterReturnValue,
-} from './delimiter';
-
-const Version = require('../../versioning/Version').Version;
-const VSConst = require('../../versioning/constants').VersioningConstants;
-const { inc, FILTER_END, FILTER_ACCEPT, FILTER_SKIP, SKIP_NONE } =
-    require('./tools');
-
-const VID_SEP = VSConst.VersionId.Separator;
-const { DbPrefixes, BucketVersioningKeyFormat } = VSConst;
-
-export const enum DelimiterVersionsFilterStateId {
-    NotSkipping = 1,
-    SkippingPrefix = 2,
-    SkippingVersions = 3,
-};
-
-export interface DelimiterVersionsFilterState_NotSkipping extends FilterState {
-    id: DelimiterVersionsFilterStateId.NotSkipping,
-};
-
-export interface DelimiterVersionsFilterState_SkippingPrefix extends FilterState {
-    id: DelimiterVersionsFilterStateId.SkippingPrefix,
-    prefix: string;
-};
-
-export interface DelimiterVersionsFilterState_SkippingVersions extends FilterState {
-    id: DelimiterVersionsFilterStateId.SkippingVersions,
-    gt: string;
-};
-
-type KeyHandler = (key: string, versionId: string | undefined, value: string) => FilterReturnValue;
-
-type ResultObject = {
-    CommonPrefixes: string[],
-    Versions: {
-        key: string;
-        value: string;
-        versionId: string;
-    }[];
-    IsTruncated: boolean;
-    Delimiter ?: string;
-    NextKeyMarker ?: string;
-    NextVersionIdMarker ?: string;
-};
-
-type GenMDParamsItem = {
-    gt ?: string,
-    gte ?: string,
-    lt ?: string,
-};
-
-/**
- * Handle object listing with parameters
- *
- * @prop {String[]} CommonPrefixes     - 'folders' defined by the delimiter
- * @prop {String[]} Contents           - 'files' to list
- * @prop {Boolean} IsTruncated         - truncated listing flag
- * @prop {String|undefined} NextMarker - marker per amazon format
- * @prop {Number} keys                 - count of listed keys
- * @prop {String|undefined} delimiter  - separator per amazon format
- * @prop {String|undefined} prefix     - prefix per amazon format
- * @prop {Number} maxKeys              - number of keys to list
- */
-export class DelimiterVersions extends Extension {
-
-    state: FilterState;
-    keyHandlers: { [id: number]: KeyHandler };
-
-    constructor(parameters, logger, vFormat) {
-        super(parameters, logger);
-        // original listing parameters
-        this.delimiter = parameters.delimiter;
-        this.prefix = parameters.prefix;
-        this.maxKeys = parameters.maxKeys || 1000;
-        // specific to version listing
-        this.keyMarker = parameters.keyMarker;
-        this.versionIdMarker = parameters.versionIdMarker;
-        // internal state
-        this.masterKey = undefined;
-        this.masterVersionId = undefined;
-        this.nullKey = null;
-        this.vFormat = vFormat || BucketVersioningKeyFormat.v0;
-        // listing results
-        this.CommonPrefixes = [];
-        this.Versions = [];
-        this.IsTruncated = false;
-        this.nextKeyMarker = parameters.keyMarker;
-        this.nextVersionIdMarker = undefined;
-
-        this.keyHandlers = {};
-
-        Object.assign(this, {
-            [BucketVersioningKeyFormat.v0]: {
-                genMDParams: this.genMDParamsV0,
-                getObjectKey: this.getObjectKeyV0,
-                skipping: this.skippingV0,
-            },
-            [BucketVersioningKeyFormat.v1]: {
-                genMDParams: this.genMDParamsV1,
-                getObjectKey: this.getObjectKeyV1,
-                skipping: this.skippingV1,
-            },
-        }[this.vFormat]);
-
-        if (this.vFormat === BucketVersioningKeyFormat.v0) {
-            this.setKeyHandler(
-                DelimiterVersionsFilterStateId.NotSkipping,
-                this.keyHandler_NotSkippingV0.bind(this));
-        } else {
-            this.setKeyHandler(
-                DelimiterVersionsFilterStateId.NotSkipping,
-                this.keyHandler_NotSkippingV1.bind(this));
-        }
-        this.setKeyHandler(
-            DelimiterVersionsFilterStateId.SkippingPrefix,
-            this.keyHandler_SkippingPrefix.bind(this));
-
-        this.setKeyHandler(
-            DelimiterVersionsFilterStateId.SkippingVersions,
-            this.keyHandler_SkippingVersions.bind(this));
-
-        if (this.versionIdMarker) {
-            this.state = <DelimiterVersionsFilterState_SkippingVersions> {
-                id: DelimiterVersionsFilterStateId.SkippingVersions,
-                gt: `${this.keyMarker}${VID_SEP}${this.versionIdMarker}`,
-            };
-        } else {
-            this.state = <DelimiterVersionsFilterState_NotSkipping> {
-                id: DelimiterVersionsFilterStateId.NotSkipping,
-            };
-        }
-    }
-
-    genMDParamsV0() {
-        const params: GenMDParamsItem = {};
-        if (this.prefix) {
-            params.gte = this.prefix;
-            params.lt = inc(this.prefix);
-        }
-        if (this.keyMarker && this.delimiter) {
-            const commonPrefix = this.getCommonPrefix(this.keyMarker);
-            if (commonPrefix) {
-                const afterPrefix = inc(commonPrefix);
-                if (!params.gte || afterPrefix > params.gte) {
-                    params.gte = afterPrefix;
-                }
-            }
-        }
-        if (this.keyMarker && (!params.gte || this.keyMarker >= params.gte)) {
-            delete params.gte;
-            if (this.versionIdMarker) {
-                // start from the beginning of versions so we can
-                // check if there's a null key and fetch it
-                // (afterwards, we can skip the rest of versions until
-                // we reach versionIdMarker)
-                params.gte = `${this.keyMarker}${VID_SEP}`;
-            } else {
-                params.gt = `${this.keyMarker}${inc(VID_SEP)}`;
-            }
-        }
-        return params;
-    }
-
-    genMDParamsV1() {
-        // return an array of two listing params sets to ask for
-        // synchronized listing of M and V ranges
-        const v0Params: GenMDParamsItem = this.genMDParamsV0();
-        const mParams: GenMDParamsItem = {};
-        const vParams: GenMDParamsItem = {};
-        if (v0Params.gt) {
-            mParams.gt = `${DbPrefixes.Master}${v0Params.gt}`;
-            vParams.gt = `${DbPrefixes.Version}${v0Params.gt}`;
-        } else if (v0Params.gte) {
-            mParams.gte = `${DbPrefixes.Master}${v0Params.gte}`;
-            vParams.gte = `${DbPrefixes.Version}${v0Params.gte}`;
-        } else {
-            mParams.gte = DbPrefixes.Master;
-            vParams.gte = DbPrefixes.Version;
-        }
-        if (v0Params.lt) {
-            mParams.lt = `${DbPrefixes.Master}${v0Params.lt}`;
-            vParams.lt = `${DbPrefixes.Version}${v0Params.lt}`;
-        } else {
-            mParams.lt = inc(DbPrefixes.Master);
-            vParams.lt = inc(DbPrefixes.Version);
-        }
-        return [mParams, vParams];
-    }
-
-    /**
-     * check if the max keys count has been reached and set the
-     * final state of the result if it is the case
-     * @return {Boolean} - indicates if the iteration has to stop
-     */
-    _reachedMaxKeys(): boolean {
-        if (this.keys >= this.maxKeys) {
-            // In cases of maxKeys <= 0 -> IsTruncated = false
-            this.IsTruncated = this.maxKeys > 0;
-            return true;
-        }
-        return false;
-    }
-
-    /**
-     * Used to synchronize listing of M and V prefixes by object key
-     *
-     * @param {object} masterObj object listed from first range
-     * returned by genMDParamsV1() (the master keys range)
-     * @param {object} versionObj object listed from second range
-     * returned by genMDParamsV1() (the version keys range)
-     * @return {number} comparison result:
-     *   * -1 if master key < version key
-     *   * 1 if master key > version key
-     */
-    compareObjects(masterObj, versionObj) {
-        const masterKey = masterObj.key.slice(DbPrefixes.Master.length);
-        const versionKey = versionObj.key.slice(DbPrefixes.Version.length);
-        return masterKey < versionKey ? -1 : 1;
-    }
-
-    /**
-     * Parse a listing key into its nonversioned key and version ID components
-     *
-     * @param {string} key - full listing key
-     * @return {object} obj
-     * @return {string} obj.key - nonversioned part of key
-     * @return {string} [obj.versionId] - version ID in the key
-     */
-    parseKey(fullKey: string): { key: string, versionId ?: string } {
-        const versionIdIndex = fullKey.indexOf(VID_SEP);
-        if (versionIdIndex === -1) {
-            return { key: fullKey };
-        }
-        const nonversionedKey: string = fullKey.slice(0, versionIdIndex);
-        let versionId: string = fullKey.slice(versionIdIndex + 1);
-        return { key: nonversionedKey, versionId };
-    }
-
-    /**
-     * Include a key in the listing output, in the Versions or CommonPrefix result
-     *
-     * @param {string} key - key (without version ID)
-     * @param {string} versionId - version ID
-     * @param {string} value - metadata value
-     * @return {undefined}
-     */
-    addKey(key: string, versionId: string, value: string) {
-        // add the subprefix to the common prefixes if the key has the delimiter
-        const commonPrefix = this.getCommonPrefix(key);
-        if (commonPrefix) {
-            this.addCommonPrefix(commonPrefix);
-            // transition into SkippingPrefix state to skip all following keys
-            // while they start with the same prefix
-            this.setState(<DelimiterVersionsFilterState_SkippingPrefix> {
-                id: DelimiterVersionsFilterStateId.SkippingPrefix,
-                prefix: commonPrefix,
-            });
-        } else {
-            this.addVersion(key, versionId, value);
-        }
-    }
-
-    /**
-     *  Add a (key, versionId, value) tuple to the listing.
-     *  Set the NextMarker to the current key
-     *  Increment the keys counter
-     *  @param {String} key         - The key to add
-     *  @param {String} versionId   - versionId
-     *  @param {String} value       - The value of the key
-     *  @return {undefined}
-     */
-    addVersion(key: string, versionId: string, value: string) {
-        this.Versions.push({
-            key,
-            versionId,
-            value: this.trimMetadata(value),
-        });
-        this.nextKeyMarker = key;
-        this.nextVersionIdMarker = versionId;
-        ++this.keys;
-    }
-
-    getCommonPrefix(key: string): string | undefined {
-        if (!this.delimiter) {
-            return undefined;
-        }
-        const baseIndex = this.prefix ? this.prefix.length : 0;
-        const delimiterIndex = key.indexOf(this.delimiter, baseIndex);
-        if (delimiterIndex === -1) {
-            return undefined;
-        }
-        return key.substring(0, delimiterIndex + this.delimiter.length);
-    }
-
-    /**
-     * Add a Common Prefix in the list
-     * @param {String} commonPrefix   - common prefix to add
-     * @return {undefined}
-     */
-    addCommonPrefix(commonPrefix: string): void {
-        // add the new prefix to the list
-        this.CommonPrefixes.push(commonPrefix);
-        ++this.keys;
-        this.nextKeyMarker = commonPrefix;
-        this.nextVersionIdMarker = undefined;
-    }
-
-    /**
-     * Cache the current null key, to save it for outputting it later at
-     * the correct position
-     *
-     * @param {String} key        - nonversioned key of the null key
-     * @param {String} versionId  - real version ID of the null key
-     * @param {String} value      - value of the null key
-     * @return {undefined}
-     */
-    cacheNullKey(key: string, versionId: string, value: string): void {
-        this.nullKey = { key, versionId, value };
-    }
-
-    getObjectKeyV0(obj: { key: string }): string {
-        return obj.key;
-    }
-
-    getObjectKeyV1(obj: { key: string }): string {
-        return obj.key.slice(DbPrefixes.Master.length);
-    }
-
-    /**
-     *  Filter to apply on each iteration, based on:
-     *  - prefix
-     *  - delimiter
-     *  - maxKeys
-     *  The marker is being handled directly by levelDB
-     *  @param {Object} obj       - The key and value of the element
-     *  @param {String} obj.key   - The key of the element
-     *  @param {String} obj.value - The value of the element
-     *  @return {number}          - indicates if iteration should continue
-     */
-    filter(obj: { key: string, value: string }): FilterReturnValue {
-        const key = this.getObjectKey(obj);
-        const value = obj.value;
-
-        const { key: nonversionedKey, versionId: keyVersionId } = this.parseKey(key);
-        if (this.nullKey) {
-            if (this.nullKey.key !== nonversionedKey
-                || this.nullKey.versionId < <string> keyVersionId) {
-                this.handleKey(
-                    this.nullKey.key, this.nullKey.versionId, this.nullKey.value);
-                this.nullKey = null;
-            }
-        }
-        if (keyVersionId === '') {
-            // null key
-            this.cacheNullKey(nonversionedKey, Version.from(value).getVersionId(), value);
-            if (this.state.id === DelimiterVersionsFilterStateId.SkippingVersions) {
-                return FILTER_SKIP;
-            }
-            return FILTER_ACCEPT;
-        }
-        return this.handleKey(nonversionedKey, keyVersionId, value);
-    }
-
-    setState(state: FilterState): void {
-        this.state = state;
-    }
-
-    setKeyHandler(stateId: number, keyHandler: KeyHandler): void {
-        this.keyHandlers[stateId] = keyHandler;
-    }
-
-    handleKey(key: string, versionId: string | undefined, value: string): FilterReturnValue {
-        return this.keyHandlers[this.state.id](key, versionId, value);
-    }
-
-    keyHandler_NotSkippingV0(key: string, versionId: string | undefined, value: string): FilterReturnValue {
-        if (key.startsWith(DbPrefixes.Replay)) {
-            // skip internal replay prefix entirely
-            this.setState(<DelimiterVersionsFilterState_SkippingPrefix> {
-                id: DelimiterVersionsFilterStateId.SkippingPrefix,
-                prefix: DbPrefixes.Replay,
-            });
-            return FILTER_SKIP;
-        }
-        if (Version.isPHD(value)) {
-            return FILTER_ACCEPT;
-        }
-        return this.filter_onNewKey(key, versionId, value);
-    }
-
-    keyHandler_NotSkippingV1(key: string, versionId: string | undefined, value: string): FilterReturnValue {
-        // NOTE: this check on PHD is only useful for Artesca, S3C
-        // does not use PHDs in V1 format
-        if (Version.isPHD(value)) {
-            return FILTER_ACCEPT;
-        }
-        return this.filter_onNewKey(key, versionId, value);
-    }
-
-    filter_onNewKey(key: string, versionId: string | undefined, value: string): FilterReturnValue {
-        if (this._reachedMaxKeys()) {
-            return FILTER_END;
-        }
-        if (versionId === undefined) {
-            this.masterKey = key;
-            this.masterVersionId = Version.from(value).getVersionId() || 'null';
-            this.addKey(this.masterKey, this.masterVersionId, value);
-        } else {
-            if (this.masterKey === key && this.masterVersionId === versionId) {
-                // do not add a version key if it is the master version
-                return FILTER_ACCEPT;
-            }
-            this.addKey(key, versionId, value);
-        }
-        return FILTER_ACCEPT;
-    }
-
-    keyHandler_SkippingPrefix(key: string, versionId: string | undefined, value: string): FilterReturnValue {
-        const { prefix } = <DelimiterVersionsFilterState_SkippingPrefix> this.state;
-        if (key.startsWith(prefix)) {
-            return FILTER_SKIP;
-        }
-        this.setState(<DelimiterVersionsFilterState_NotSkipping> {
-            id: DelimiterVersionsFilterStateId.NotSkipping,
-        });
-        return this.handleKey(key, versionId, value);
-    }
-
-    keyHandler_SkippingVersions(key: string, versionId: string | undefined, value: string): FilterReturnValue {
-        if (key === this.keyMarker) {
-            // since the nonversioned key equals the marker, there is
-            // necessarily a versionId in this key
-            const _versionId = <string> versionId;
-            if (_versionId < this.versionIdMarker) {
-                // skip all versions until marker
-                return FILTER_SKIP;
-            }
-            if (_versionId === this.versionIdMarker) {
-                // nothing left to skip, so return ACCEPT, but don't add this version
-                return FILTER_ACCEPT;
-            }
-        }
-        this.setState(<DelimiterVersionsFilterState_NotSkipping> {
-            id: DelimiterVersionsFilterStateId.NotSkipping,
-        });
-        return this.handleKey(key, versionId, value);
-    }
-
-    skippingBase(): string | undefined {
-        switch (this.state.id) {
-        case DelimiterVersionsFilterStateId.SkippingPrefix:
-            const { prefix } = <DelimiterVersionsFilterState_SkippingPrefix> this.state;
-            return inc(prefix);
-
-        case DelimiterVersionsFilterStateId.SkippingVersions:
-            const { gt } = <DelimiterVersionsFilterState_SkippingVersions> this.state;
-            // the contract of skipping() is to return the first key
-            // that can be skipped to, so adding a null byte to skip
-            // over the existing versioned key set in 'gt'
-            return `${gt}\0`;
-
-        default:
-            return SKIP_NONE;
-        }
-    }
-
-    skippingV0() {
-        return this.skippingBase();
-    }
-
-    skippingV1() {
-        const skipTo = this.skippingBase();
-        if (skipTo === SKIP_NONE) {
-            return SKIP_NONE;
-        }
-        // skip to the same object key in both M and V range listings
-        return [
-            `${DbPrefixes.Master}${skipTo}`,
-            `${DbPrefixes.Version}${skipTo}`,
-        ];
-    }
-
-    /**
-     *  Return an object containing all mandatory fields to use once the
-     *  iteration is done, doesn't show a NextMarker field if the output
-     *  isn't truncated
-     *  @return {Object} - following amazon format
-     */
-    result() {
-        // Add the last null key if still in cache (when it is the
-        // last version of the last key)
-        //
-        // NOTE: _reachedMaxKeys sets IsTruncated to true when it
-        // returns true. Here we want this because either:
-        //
-        // - we did not reach the max keys yet so the result is not
-        // - truncated, and there is still room for the null key in
-        // - the results
-        //
-        // - OR we reached it already while having to process a new
-        //   key (so the result is truncated even without the null key)
-        //
-        // - OR we are *just* below the limit but the null key to add
-        //   does not fit, so we know the result is now truncated
-        //   because there remains the null key to be output.
-        //
-        if (this.nullKey) {
-            this.handleKey(this.nullKey.key, this.nullKey.versionId, this.nullKey.value);
-        }
-        const result: ResultObject = {
-            CommonPrefixes: this.CommonPrefixes,
-            Versions: this.Versions,
-            IsTruncated: this.IsTruncated,
-        };
-        if (this.delimiter) {
-            result.Delimiter = this.delimiter;
-        }
-        if (this.IsTruncated) {
-            result.NextKeyMarker = this.nextKeyMarker;
-            if (this.nextVersionIdMarker) {
-                result.NextVersionIdMarker = this.nextVersionIdMarker;
-            }
-        };
-        return result;
-    }
-}
-
-module.exports = { DelimiterVersions };

lib/algos/list/exportAlgos.js

@@ -6,7 +6,4 @@ module.exports = {
     DelimiterMaster: require('./delimiterMaster')
         .DelimiterMaster,
     MPU: require('./MPU').MultipartUploads,
-    DelimiterCurrent: require('./delimiterCurrent').DelimiterCurrent,
-    DelimiterNonCurrent: require('./delimiterNonCurrent').DelimiterNonCurrent,
-    DelimiterOrphanDeleteMarker: require('./delimiterOrphanDeleteMarker').DelimiterOrphanDeleteMarker,
 };

lib/algos/list/skip.js

@@ -52,21 +52,21 @@ class Skip {
         assert(this.skipRangeCb);
 
         const filteringResult = this.extension.filter(entry);
-        const skipTo = this.extension.skipping();
+        const skippingRange = this.extension.skipping();
 
         if (filteringResult === FILTER_END) {
             this.listingEndCb();
         } else if (filteringResult === FILTER_SKIP
-                   && skipTo !== SKIP_NONE) {
+                   && skippingRange !== SKIP_NONE) {
             if (++this.streakLength >= MAX_STREAK_LENGTH) {
                 let newRange;
-                if (Array.isArray(skipTo)) {
+                if (Array.isArray(skippingRange)) {
                     newRange = [];
-                    for (let i = 0; i < skipTo.length; ++i) {
+                    for (let i = 0; i < skippingRange.length; ++i) {
-                        newRange.push(skipTo[i]);
+                        newRange.push(this._inc(skippingRange[i]));
                     }
                 } else {
-                    newRange = skipTo;
+                    newRange = this._inc(skippingRange);
                 }
                 /* Avoid to loop on the same range again and again. */
                 if (newRange === this.gteParams) {
@@ -79,6 +79,16 @@ class Skip {
             this.streakLength = 0;
         }
     }
+
+    _inc(str) {
+        if (!str) {
+            return str;
+        }
+        const lastCharValue = str.charCodeAt(str.length - 1);
+        const lastCharNewValue = String.fromCharCode(lastCharValue + 1);
+
+        return `${str.slice(0, str.length - 1)}${lastCharNewValue}`;
+    }
 }
 
 

lib/auth/Vault.ts

@@ -14,7 +14,7 @@ function vaultSignatureCb(
     err: Error | null,
     authInfo: { message: { body: any } },
     log: Logger,
-    callback: (err: Error | null, data?: any, results?: any, params?: any, infos?: any) => void,
+    callback: (err: Error | null, data?: any, results?: any, params?: any) => void,
     streamingV4Params?: any
 ) {
     // vaultclient API guarantees that it returns:
@@ -38,9 +38,7 @@ function vaultSignatureCb(
     }
     // @ts-ignore
     log.addDefaultFields(auditLog);
-    return callback(null, userInfo, authorizationResults, streamingV4Params, {
+    return callback(null, userInfo, authorizationResults, streamingV4Params);
-        accountQuota: info.accountQuota || {},
-    });
 }
 
 export type AuthV4RequestParams = {
@@ -386,19 +384,4 @@ export default class Vault {
             return callback(null, respBody);
         });
     }
-
-    report(log: Logger, callback: (err: Error | null, data?: any) => void) {
-        // call the report function of the client
-        if (!this.client.report) {
-            return callback(null, {});
-        }
-        // @ts-ignore
-        return this.client.report(log.getSerializedUids(), (err: Error | null, obj?: any) => {
-            if (err) {
-                log.debug(`error from ${this.implName}`, { error: err });
-                return callback(err);
-            }
-            return callback(null, obj);
-        });
-    }
 }

lib/auth/auth.ts

@@ -163,20 +163,6 @@ function doAuth(
     return cb(errors.InternalError);
 }
 
-/**
- * This function will generate a version 4 content-md5 header
- * It looks at the request path to determine what kind of header encoding is required
- *
- * @param path - the request path
- * @param payload - the request payload to hash
- */
-function generateContentMD5Header(
-    path: string,
-    payload: string,
-) {
-    const encoding = path && path.startsWith('/_/backbeat/') ? 'hex' : 'base64';
-    return crypto.createHash('md5').update(payload, 'binary').digest(encoding);
-}
 /**
  * This function will generate a version 4 header
  *
@@ -189,7 +175,6 @@ function generateContentMD5Header(
  * @param [proxyPath] - path that gets proxied by reverse proxy
  * @param [sessionToken] - security token if the access/secret keys
  *                                are temporary credentials from STS
- * @param [payload] - body of the request if any
  */
 function generateV4Headers(
     request: any,
@@ -197,9 +182,8 @@ function generateV4Headers(
     accessKey: string,
     secretKeyValue: string,
     awsService: string,
-    proxyPath?: string,
+    proxyPath: string,
-    sessionToken?: string,
+    sessionToken: string
-    payload?: string,
 ) {
     Object.assign(request, { headers: {} });
     const amzDate = convertUTCtoISO8601(Date.now());
@@ -212,7 +196,7 @@ function generateV4Headers(
     const timestamp = amzDate;
     const algorithm = 'AWS4-HMAC-SHA256';
 
-    payload = payload || '';
+    let payload = '';
     if (request.method === 'POST') {
         payload = queryString.stringify(data, undefined, undefined, {
             encodeURIComponent,
@@ -223,7 +207,6 @@ function generateV4Headers(
     request.setHeader('host', request._headers.host);
     request.setHeader('x-amz-date', amzDate);
     request.setHeader('x-amz-content-sha256', payloadChecksum);
-    request.setHeader('content-md5', generateContentMD5Header(request.path, payload));
 
     if (sessionToken) {
         request.setHeader('x-amz-security-token', sessionToken);
@@ -234,7 +217,6 @@ function generateV4Headers(
         .filter(headerName =>
             headerName.startsWith('x-amz-')
             || headerName.startsWith('x-scal-')
-            || headerName === 'content-md5'
             || headerName === 'host',
         ).sort().join(';');
     const params = { request, signedHeaders, payloadChecksum,

lib/auth/backends/ChainBackend.ts

@@ -133,37 +133,23 @@ export default class ChainBackend extends BaseBackend {
                 return;
             }
 
-            const check = (policy) => {
+            resp.message.body.forEach(policy => {
-                const key = (policy.arn || '') + (policy.versionId || '') + (policy.action || '');
+                const key = (policy.arn || '') + (policy.versionId || '');
                 if (!policyMap[key] || !policyMap[key].isAllowed) {
                     policyMap[key] = policy;
                 }
                 // else is duplicate policy
-            };
-
-            resp.message.body.forEach(policy => {
-                if (Array.isArray(policy)) {
-                    policy.forEach(authResult => check(authResult));
-                } else {
-                    check(policy);
-                }
             });
         });
 
         return Object.keys(policyMap).map(key => {
-            const policyRes: any = { isAllowed: policyMap[key].isAllowed };
+            const policyRes: any = { isAllowed: policyMap[key].isAllowed };
             if (policyMap[key].arn !== '') {
                 policyRes.arn = policyMap[key].arn;
             }
             if (policyMap[key].versionId) {
                 policyRes.versionId = policyMap[key].versionId;
             }
-            if (policyMap[key].isImplicit !== undefined) {
-                policyRes.isImplicit = policyMap[key].isImplicit;
-            }
-            if (policyMap[key].action) {
-                policyRes.action = policyMap[key].action;
-            }
             return policyRes;
         });
     }
@@ -212,22 +198,4 @@ export default class ChainBackend extends BaseBackend {
             return callback(null, res);
         });
     }
-
-    report(reqUid: string, callback: any) {
-        this._forEachClient((client, done) =>
-            client.report(reqUid, done),
-            (err, res) => {
-                if (err) {
-                    return callback(err);
-                }
-                const mergedRes = res.reduce((acc, val) => {
-                    Object.keys(val).forEach(k => {
-                        acc[k] = val[k];
-                    });
-                    return acc;
-                }, {});
-
-                return callback(null, mergedRes);
-            });
-    }
 }

lib/auth/backends/in_memory/AuthLoader.ts

@@ -4,7 +4,8 @@ import joi from 'joi';
 import werelogs from 'werelogs';
 import * as types from './types';
 import { Account, Accounts } from './types';
-import ARN from '../../../models/ARN';
+
+const ARN = require('../../../models/ARN');
 
 /** Load authentication information from files or pre-loaded account objects */
 export default class AuthLoader {

lib/auth/backends/in_memory/Backend.ts

@@ -161,10 +161,6 @@ class InMemoryBackend extends BaseBackend {
         };
         return cb(null, vaultReturnObject);
     }
-
-    report(log: Logger, callback: any) {
-        return callback(null, {});
-    }
 }
 
 

lib/auth/v4/awsURIencode.ts

@@ -35,16 +35,15 @@ export default function awsURIencode(
     encodeSlash?: boolean,
     noEncodeStar?: boolean
 ) {
+    const encSlash = encodeSlash === undefined ? true : encodeSlash;
+    let encoded = '';
     /**
      * Duplicate query params are not suppported by AWS S3 APIs. These params
      * are parsed as Arrays by Node.js HTTP parser which breaks this method
     */
     if (typeof input !== 'string') {
-        return '';
+        return encoded;
     }
-    let encoded = "";
-    const slash = encodeSlash === undefined || encodeSlash ? '%2F' : '/';
-    const star = noEncodeStar !== undefined && noEncodeStar ? '*' : '%2A';
     for (let i = 0; i < input.length; i++) {
         let ch = input.charAt(i);
         if ((ch >= 'A' && ch <= 'Z') ||
@@ -56,9 +55,9 @@ export default function awsURIencode(
         } else if (ch === ' ') {
             encoded = encoded.concat('%20');
         } else if (ch === '/') {
-            encoded = encoded.concat(slash);
+            encoded = encoded.concat(encSlash ? '%2F' : ch);
         } else if (ch === '*') {
-            encoded = encoded.concat(star);
+            encoded = encoded.concat(noEncodeStar ? '*' : '%2A');
         } else {
             if (ch >= '\uD800' && ch <= '\uDBFF') {
                 // If this character is a high surrogate peek the next character

lib/clustering/ClusterRPC.ts

@@ -1,569 +0,0 @@
-import cluster, { Worker } from 'cluster';
-import * as werelogs from 'werelogs';
-
-import { default as errors } from '../../lib/errors';
-
-const rpcLogger = new werelogs.Logger('ClusterRPC');
-
-/**
- * Remote procedure calls support between cluster workers.
- *
- * When using the cluster module, new processes are forked and are
- * dispatched workloads, usually HTTP requests. The ClusterRPC module
- * implements a RPC system to send commands to all cluster worker
- * processes at once from any particular worker, and retrieve their
- * individual command results, like a distributed map operation.
- *
- * The existing nodejs cluster IPC channel is setup from the primary
- * to each worker, but not between workers, so there has to be a hop
- * by the primary.
- *
- * How a command is treated:
- *
- * - a worker sends a command message to the primary
- *
- * - the primary then forwards that command to each existing worker
- *   (including the requestor)
- *
- * - each worker then executes the command and returns a result or an
- *   error
- *
- * - the primary gathers all workers results into an array
- *
- * - finally, the primary dispatches the results array to the original
- *   requesting worker
- *
- *
- * Limitations:
- *
- * - The command payload must be serializable, which means that:
- *   - it should not contain circular references
- *   - it should be of a reasonable size to be sent in a single RPC message
- *
- * - The "toWorkers" parameter of value "*" targets the set of workers
- *   that are available at the time the command is dispatched. Any new
- *   worker spawned after the command has been dispatched for
- *   processing, but before the command completes, don't execute
- *   the command and hence are not part of the results array.
- *
- *
- * To set it up:
- *
- * - On the primary:
- *     if (cluster.isPrimary) {
- *         setupRPCPrimary();
- *     }
- *
- * - On the workers:
- *     if (!cluster.isPrimary) {
- *         setupRPCWorker({
- *             handler1: (payload: object, uids: string, callback: HandlerCallback) => void,
- *             handler2: ...
- *         });
- *     }
- *     Handler functions will be passed the command payload, request
- *     serialized uids, and must call the callback when the worker is done
- *     processing the command:
- *         callback(error: Error | null | undefined, result?: any)
- *
- * When this setup is done, any worker can start sending commands by calling
- * the async function sendWorkerCommand().
- */
-
-// exported types
-
-export type ResultObject = {
-    error: Error | null;
-    result: any;
-};
-
-/**
- * saved Promise for sendWorkerCommand
- */
-export type CommandPromise = {
-    resolve: (results?: ResultObject[]) => void;
-    reject: (error: Error) => void;
-    timeout: NodeJS.Timeout | null;
-};
-export type HandlerCallback = (error: (Error & { code?: number }) | null | undefined, result?: any) => void;
-export type HandlerFunction = (payload: object, uids: string, callback: HandlerCallback) => void;
-export type HandlersMap = {
-    [index: string]: HandlerFunction;
-};
-export type PrimaryHandlerFunction = (worker: Worker, payload: object, uids: string, callback: HandlerCallback) => void;
-export type PrimaryHandlersMap = Record<string, PrimaryHandlerFunction>;
-
-// private types
-
-type RPCMessage<T extends string, P> = {
-    type: T;
-    uids: string;
-    payload: P;
-};
-
-type RPCCommandMessage = RPCMessage<'cluster-rpc:command', any> & {
-    toWorkers: string;
-    toHandler: string;
-};
-
-type MarshalledResultObject = {
-    error: string | null;
-    errorCode?: number;
-    result: any;
-};
-
-type RPCCommandResultMessage = RPCMessage<'cluster-rpc:commandResult', MarshalledResultObject>;
-
-type RPCCommandResultsMessage = RPCMessage<'cluster-rpc:commandResults', {
-    results: MarshalledResultObject[];
-}>;
-
-type RPCCommandErrorMessage = RPCMessage<'cluster-rpc:commandError', {
-    error: string;
-}>;
-
-interface RPCSetupOptions {
-    /**
-     * As werelogs is not a peerDependency, arsenal and a parent project
-     * might have their own separate versions duplicated in dependencies.
-     * The config are therefore not shared.
-     * Use this to propagate werelogs config to arsenal's ClusterRPC.
-     */
-    werelogsConfig?: Parameters<typeof werelogs.configure>[0];
-};
-
-/**
- * In primary: store worker IDs that are waiting to be dispatched
- * their command's results, as a mapping.
- */
-const uidsToWorkerId: {
-    [index: string]: number;
-} = {};
-
-
-/**
- * In primary: store worker responses for commands in progress as a
- * mapping.
- *
- * Result objects are 'null' while the worker is still processing the
- * command. When a worker finishes processing it stores the result as:
- *    {
- *        error: string | null,
- *        result: any
- *    }
- */
-const uidsToCommandResults: {
-    [index: string]: {
-        [index: number]: MarshalledResultObject | null;
-    };
-} = {};
-
-/**
- * In workers: store promise callbacks for commands waiting to be
- * dispatched, as a mapping.
- */
-const uidsToCommandPromise: {
-    [index: string]: CommandPromise;
-} = {};
-
-
-function _isRpcMessage(message) {
-    return (message !== null &&
-            typeof message === 'object' &&
-            typeof message.type === 'string' &&
-            message.type.startsWith('cluster-rpc:'));
-}
-
-/**
- * Setup cluster RPC system on the primary
- *
- * @param {object} [handlers] - mapping of handler names to handler functions
- *     handler function:
- *         `handler({Worker} worker, {object} payload, {string} uids, {function} callback)`
- *     handler callback must be called when worker is done with the command:
- *         `callback({Error|null} error, {any} [result])`
- * @return {undefined}
- */
-export function setupRPCPrimary(handlers?: PrimaryHandlersMap, options?: RPCSetupOptions) {
-    if (options?.werelogsConfig) {
-        werelogs.configure(options.werelogsConfig);
-    }
-    cluster.on('message', (worker, message) => {
-        if (_isRpcMessage(message)) {
-            _handlePrimaryMessage(worker, message, handlers);
-        }
-    });
-}
-
-/**
- * Setup RPCs on a cluster worker process
- *
- * @param {object} handlers - mapping of handler names to handler functions
- *     handler function:
- *         handler({object} payload, {string} uids, {function} callback)
- *     handler callback must be called when worker is done with the command:
- *         callback({Error|null} error, {any} [result])
- * @return {undefined}
- * }
- */
-export function setupRPCWorker(handlers: HandlersMap, options?: RPCSetupOptions) {
-    if (!process.send) {
-        throw new Error('fatal: cannot setup cluster RPC: "process.send" is not available');
-    }
-    if (options?.werelogsConfig) {
-        werelogs.configure(options.werelogsConfig);
-    }
-    process.on('message', (message: RPCCommandMessage | RPCCommandResultsMessage) => {
-        if (_isRpcMessage(message)) {
-            _handleWorkerMessage(message, handlers);
-        }
-    });
-}
-
-/**
- * Send a command for workers to execute in parallel, and wait for results
- *
- * @param {string} toWorkers - which workers should execute the command
- *     Currently the supported values are:
- *         - "*", meaning all workers will execute the command
- *         - "PRIMARY", meaning primary process will execute the command
- * @param {string} toHandler - name of handler that will execute the
- * command in workers, as declared in setupRPCWorker() parameter object
- * @param {string} uids - unique identifier of the command, must be
- * unique across all commands in progress
- * @param {object} payload - message payload, sent as-is to the handler
- * @param {number} [timeoutMs=60000] - timeout the command with a
- * "RequestTimeout" error after this number of milliseconds - set to 0
- * to disable timeouts (the command may then hang forever)
- * @returns {Promise}
- */
-export async function sendWorkerCommand(
-    toWorkers: string,
-    toHandler: string,
-    uids: string,
-    payload: object,
-    timeoutMs: number = 60000
-) {
-    if (typeof uids !== 'string') {
-        rpcLogger.error('missing or invalid "uids" field', { uids });
-        throw errors.MissingParameter;
-    }
-    if (uidsToCommandPromise[uids] !== undefined) {
-        rpcLogger.error('a command is already in progress with same uids', { uids });
-        throw errors.OperationAborted;
-    }
-    rpcLogger.info('sending command', { toWorkers, toHandler, uids, payload });
-    return new Promise((resolve, reject) => {
-        let timeout: NodeJS.Timeout | null = null;
-        if (timeoutMs) {
-            timeout = setTimeout(() => {
-                delete uidsToCommandPromise[uids];
-                reject(errors.RequestTimeout);
-            }, timeoutMs);
-        }
-        uidsToCommandPromise[uids] = { resolve, reject, timeout };
-        const message: RPCCommandMessage = {
-            type: 'cluster-rpc:command',
-            toWorkers,
-            toHandler,
-            uids,
-            payload,
-        };
-        return process.send?.(message);
-    });
-}
-
-/**
- * Get the number of commands in flight
- * @returns {number}
- */
-export function getPendingCommandsCount() {
-    return Object.keys(uidsToCommandPromise).length;
-}
-
-
-function _dispatchCommandResultsToWorker(
-    worker: Worker,
-    uids: string,
-    resultsArray: MarshalledResultObject[]
-): void {
-    const message: RPCCommandResultsMessage = {
-        type: 'cluster-rpc:commandResults',
-        uids,
-        payload: {
-            results: resultsArray,
-        },
-    };
-    worker.send(message);
-}
-
-function _dispatchCommandErrorToWorker(
-    worker: Worker,
-    uids: string,
-    error: Error,
-): void {
-    const message: RPCCommandErrorMessage = {
-        type: 'cluster-rpc:commandError',
-        uids,
-        payload: {
-            error: error.message,
-        },
-    };
-    worker.send(message);
-}
-
-function _sendPrimaryCommandResult(
-    worker: Worker,
-    uids: string,
-    error: (Error & { code?: number }) | null | undefined,
-    result?: any
-): void {
-    const message: RPCCommandResultsMessage = {
-        type: 'cluster-rpc:commandResults',
-        uids,
-        payload: {
-            results: [{ error: error?.message || null, errorCode: error?.code, result }],
-        },
-    };
-    worker.send?.(message);
-}
-
-function _handlePrimaryCommandMessage(
-    fromWorker: Worker,
-    logger: any,
-    message: RPCCommandMessage,
-    handlers?: PrimaryHandlersMap
-): void {
-    const { toWorkers, toHandler, uids, payload } = message;
-    if (toWorkers === '*') {
-        if (uidsToWorkerId[uids] !== undefined) {
-            logger.warn('new command already has a waiting worker with same uids', {
-                uids, workerId: uidsToWorkerId[uids],
-            });
-            return undefined;
-        }
-        const commandResults = {};
-        for (const workerId of Object.keys(cluster.workers || {})) {
-            commandResults[workerId] = null;
-        }
-        uidsToWorkerId[uids] = fromWorker?.id;
-        uidsToCommandResults[uids] = commandResults;
-
-        for (const [workerId, worker] of Object.entries(cluster.workers || {})) {
-            logger.debug('sending command message to worker', {
-                workerId, toHandler, payload,
-            });
-            if (worker) {
-                worker.send(message);
-            }
-        }
-    } else if (toWorkers === 'PRIMARY') {
-        const { toHandler, uids, payload } = message;
-        const cb: HandlerCallback = (err, result) => _sendPrimaryCommandResult(fromWorker, uids, err, result);
-
-        if (toHandler in (handlers || {})) {
-            return handlers![toHandler](fromWorker, payload, uids, cb);
-        }
-        logger.error('no such handler in "toHandler" field from worker command message', {
-            toHandler,
-        });
-        return cb(errors.NotImplemented);
-    } else {
-        logger.error('unsupported "toWorkers" field from worker command message', {
-            toWorkers,
-        });
-        if (fromWorker) {
-            _dispatchCommandErrorToWorker(fromWorker, uids, errors.NotImplemented);
-        }
-    }
-}
-
-function _handlePrimaryCommandResultMessage(
-    fromWorkerId: number,
-    logger: any,
-    message: RPCCommandResultMessage
-): void {
-    const { uids, payload } = message;
-    const commandResults = uidsToCommandResults[uids];
-    if (!commandResults) {
-        logger.warn('received command response message from worker for command not in flight', {
-            workerId: fromWorkerId,
-            uids,
-        });
-        return undefined;
-    }
-    if (commandResults[fromWorkerId] === undefined) {
-        logger.warn('received command response message with unexpected worker ID', {
-            workerId: fromWorkerId,
-            uids,
-        });
-        return undefined;
-    }
-    if (commandResults[fromWorkerId] !== null) {
-        logger.warn('ignoring duplicate command response from worker', {
-            workerId: fromWorkerId,
-            uids,
-        });
-        return undefined;
-    }
-    commandResults[fromWorkerId] = payload;
-    const commandResultsArray = Object.values(commandResults);
-    if (commandResultsArray.every(response => response !== null)) {
-        logger.debug('all workers responded to command', { uids });
-        const completeCommandResultsArray = <MarshalledResultObject[]> commandResultsArray;
-        const toWorkerId = uidsToWorkerId[uids];
-        const toWorker = cluster.workers?.[toWorkerId];
-
-        delete uidsToCommandResults[uids];
-        delete uidsToWorkerId[uids];
-
-        if (!toWorker) {
-            logger.warn('worker shut down while its command was executing', {
-                workerId: toWorkerId, uids,
-            });
-            return undefined;
-        }
-        // send back response to original worker
-        _dispatchCommandResultsToWorker(toWorker, uids, completeCommandResultsArray);
-    }
-}
-
-function _handlePrimaryMessage(
-    fromWorker: Worker,
-    message: RPCCommandMessage | RPCCommandResultMessage,
-    handlers?: PrimaryHandlersMap
-): void {
-    const { type: messageType, uids } = message;
-    const logger = rpcLogger.newRequestLoggerFromSerializedUids(uids);
-    logger.debug('primary received message from worker', {
-        workerId: fromWorker?.id, rpcMessage: message,
-    });
-    if (messageType === 'cluster-rpc:command') {
-        return _handlePrimaryCommandMessage(fromWorker, logger, message, handlers);
-    }
-    if (messageType === 'cluster-rpc:commandResult') {
-        return _handlePrimaryCommandResultMessage(fromWorker?.id, logger, message);
-    }
-    logger.error('unsupported message type', {
-        workerId: fromWorker?.id, messageType, uids,
-    });
-    return undefined;
-}
-
-function _sendWorkerCommandResult(
-    uids: string,
-    error: Error | null | undefined,
-    result?: any
-): void {
-    const message: RPCCommandResultMessage = {
-        type: 'cluster-rpc:commandResult',
-        uids,
-        payload: {
-            error: error ? error.message : null,
-            result,
-        },
-    };
-    process.send?.(message);
-}
-
-function _handleWorkerCommandMessage(
-    logger: any,
-    message: RPCCommandMessage,
-    handlers: HandlersMap
-): void {
-    const { toHandler, uids, payload } = message;
-    const cb: HandlerCallback = (err, result) => _sendWorkerCommandResult(uids, err, result);
-
-    if (toHandler in handlers) {
-        return handlers[toHandler](payload, uids, cb);
-    }
-    logger.error('no such handler in "toHandler" field from worker command message', {
-        toHandler,
-    });
-    return cb(errors.NotImplemented);
-}
-
-function _handleWorkerCommandResultsMessage(
-    logger: any,
-    message: RPCCommandResultsMessage,
-): void {
-    const { uids, payload } = message;
-    const { results } = payload;
-    const commandPromise: CommandPromise = uidsToCommandPromise[uids];
-    if (commandPromise === undefined) {
-        logger.error('missing promise for command results', { uids, payload });
-        return undefined;
-    }
-    if (commandPromise.timeout) {
-        clearTimeout(commandPromise.timeout);
-    }
-    delete uidsToCommandPromise[uids];
-    const unmarshalledResults = results.map(workerResult => {
-        let workerError: Error | null = null;
-        if (workerResult.error) {
-            if (workerResult.error in errors) {
-                workerError = errors[workerResult.error];
-            } else {
-                workerError = new Error(workerResult.error);
-            }
-        }
-        if (workerError && workerResult.errorCode) {
-            (workerError as Error & { code: number }).code = workerResult.errorCode;
-        }
-        const unmarshalledResult: ResultObject = {
-            error: workerError,
-            result: workerResult.result,
-        };
-        return unmarshalledResult;
-    });
-    return commandPromise.resolve(unmarshalledResults);
-}
-
-function _handleWorkerCommandErrorMessage(
-    logger: any,
-    message: RPCCommandErrorMessage,
-): void {
-    const { uids, payload } = message;
-    const { error } = payload;
-    const commandPromise: CommandPromise = uidsToCommandPromise[uids];
-    if (commandPromise === undefined) {
-        logger.error('missing promise for command results', { uids, payload });
-        return undefined;
-    }
-    if (commandPromise.timeout) {
-        clearTimeout(commandPromise.timeout);
-    }
-    delete uidsToCommandPromise[uids];
-    let commandError: Error | null = null;
-    if (error in errors) {
-        commandError = errors[error];
-    } else {
-        commandError = new Error(error);
-    }
-    return commandPromise.reject(<Error> commandError);
-}
-
-function _handleWorkerMessage(
-    message: RPCCommandMessage | RPCCommandResultsMessage | RPCCommandErrorMessage,
-    handlers: HandlersMap
-): void {
-    const { type: messageType, uids } = message;
-    const workerId = cluster.worker?.id;
-    const logger = rpcLogger.newRequestLoggerFromSerializedUids(uids);
-    logger.debug('worker received message from primary', {
-        workerId, rpcMessage: message,
-    });
-    if (messageType === 'cluster-rpc:command') {
-        return _handleWorkerCommandMessage(logger, message, handlers);
-    }
-    if (messageType === 'cluster-rpc:commandResults') {
-        return _handleWorkerCommandResultsMessage(logger, message);
-    }
-    if (messageType === 'cluster-rpc:commandError') {
-        return _handleWorkerCommandErrorMessage(logger, message);
-    }
-    logger.error('unsupported message type', {
-        workerId, messageType,
-    });
-    return undefined;
-}

lib/constants.ts

@@ -35,13 +35,7 @@ export const emptyFileMd5 = 'd41d8cd98f00b204e9800998ecf8427e';
 // Version 4 add the Creation-Time and Content-Language attributes,
 //     and add support for x-ms-meta-* headers in UserMetadata
 // Version 5 adds the azureInfo structure
-// Version 6 adds a "deleted" flag that is updated to true before
+export const mdModelVersion = 5;
-// the object gets deleted. This is done to keep object metadata in the
-// oplog when deleting the object, as oplog deletion events don't contain
-// any metadata of the object.
-// version 6 also adds the "isPHD" flag that is used to indicate that the master
-// object is a placeholder and is not up to date.
-export const mdModelVersion = 6;
 /*
  * Splitter is used to build the object name for the overview of a
  * multipart upload and to build the object names for each part of a
@@ -137,14 +131,6 @@ export const supportedNotificationEvents = new Set([
     's3:ObjectTagging:Put',
     's3:ObjectTagging:Delete',
     's3:ObjectAcl:Put',
-    's3:ObjectRestore:*',
-    's3:ObjectRestore:Post',
-    's3:ObjectRestore:Completed',
-    's3:ObjectRestore:Delete',
-    's3:LifecycleTransition',
-    's3:LifecycleExpiration:*',
-    's3:LifecycleExpiration:DeleteMarkerCreated',
-    's3:LifecycleExpiration:Delete',
 ]);
 export const notificationArnPrefix = 'arn:scality:bucketnotif';
 // HTTP server keep-alive timeout is set to a higher value than
@@ -164,14 +150,10 @@ export const supportedLifecycleRules = [
     'noncurrentVersionExpiration',
     'abortIncompleteMultipartUpload',
     'transitions',
-    'noncurrentVersionTransition',
+    'noncurrentVersionTransitions',
 ];
 // Maximum number of buckets to cache (bucket metadata)
 export const maxCachedBuckets = process.env.METADATA_MAX_CACHED_BUCKETS ?
     Number(process.env.METADATA_MAX_CACHED_BUCKETS) : 1000;
 
 export const validRestoreObjectTiers = new Set(['Expedited', 'Standard', 'Bulk']);
-export const maxBatchingConcurrentOperations = 5;
-
-/** For policy resource arn check we allow empty account ID to not break compatibility */
-export const policyArnAllowedEmptyAccountId = ['utapi', 'scuba'];

lib/db.ts

@@ -148,7 +148,7 @@ export class IndexTransaction {
                 'missing condition for conditional put'
             );
         }
-        if (typeof condition.notExists !== 'string' && typeof condition.exists !== 'string') {
+        if (typeof condition.notExists !== 'string') {
             throw propError(
                 'unsupportedConditionalOperation',
                 'missing key or supported condition'

lib/errors/arsenalErrors.ts

@@ -42,7 +42,7 @@ export const BucketAlreadyOwnedByYou: ErrorFormat = {
     code: 409,
 
     description:
-        'A bucket with this name exists and is already owned by you',
+        'Your previous request to create the named bucket succeeded and you already own it. You get this error in all AWS regions except US Standard, us-east-1. In us-east-1 region, you will get 200 OK, but it is no-op (if bucket exists S3 will not do anything).',
 };
 
 export const BucketNotEmpty: ErrorFormat = {
@@ -365,11 +365,6 @@ export const NoSuchWebsiteConfiguration: ErrorFormat = {
     description: 'The specified bucket does not have a website configuration',
 };
 
-export const NoSuchTagSet: ErrorFormat = {
-    code: 404,
-    description: 'The TagSet does not exist',
-};
-
 export const NoSuchUpload: ErrorFormat = {
     code: 404,
     description:
@@ -690,11 +685,6 @@ export const ReportNotPresent: ErrorFormat = {
         'The request was rejected because the credential report does not exist. To generate a credential report, use GenerateCredentialReport.',
 };
 
-export const Found: ErrorFormat = {
-    code: 302,
-    description: 'Resource Found'
-};
-
 // ------------- Special non-AWS S3 errors -------------
 
 export const MPUinProgress: ErrorFormat = {
@@ -1042,15 +1032,3 @@ export const AuthMethodNotImplemented: ErrorFormat = {
     description: 'AuthMethodNotImplemented',
     code: 501,
 };
-
-// --------------------- quotaErros ---------------------
-
-export const NoSuchQuota: ErrorFormat = {
-    code: 404,
-    description: 'The specified resource does not have a quota.',
-};
-
-export const QuotaExceeded: ErrorFormat = {
-    code: 429,
-    description: 'The quota set for the resource is exceeded.',
-};

lib/metrics/ZenkoMetrics.ts

@@ -1,19 +1,26 @@
 import promClient from 'prom-client';
 
+const collectDefaultMetricsIntervalMs =
+    process.env.COLLECT_DEFAULT_METRICS_INTERVAL_MS !== undefined ?
+        Number.parseInt(process.env.COLLECT_DEFAULT_METRICS_INTERVAL_MS, 10) :
+        10000;
+
+promClient.collectDefaultMetrics({ timeout: collectDefaultMetricsIntervalMs });
+
 export default class ZenkoMetrics {
-    static createCounter(params: promClient.CounterConfiguration<string>) {
+    static createCounter(params: promClient.CounterConfiguration) {
         return new promClient.Counter(params);
     }
 
-    static createGauge(params: promClient.GaugeConfiguration<string>) {
+    static createGauge(params: promClient.GaugeConfiguration) {
         return new promClient.Gauge(params);
     }
 
-    static createHistogram(params: promClient.HistogramConfiguration<string>) {
+    static createHistogram(params: promClient.HistogramConfiguration) {
         return new promClient.Histogram(params);
     }
 
-    static createSummary(params: promClient.SummaryConfiguration<string>) {
+    static createSummary(params: promClient.SummaryConfiguration) {
         return new promClient.Summary(params);
     }
 
@@ -21,15 +28,11 @@ export default class ZenkoMetrics {
         return promClient.register.getSingleMetric(name);
     }
 
-    static async asPrometheus() {
+    static asPrometheus() {
         return promClient.register.metrics();
     }
 
     static asPrometheusContentType() {
         return promClient.register.contentType;
     }
-
-    static collectDefaultMetrics() {
-        return promClient.collectDefaultMetrics();
-    }
 }

lib/models/ARN.js

@@ -1,35 +1,23 @@
-import errors from '../errors'
+const errors = require('../errors').default;
 
 const validServices = {
     aws: ['s3', 'iam', 'sts', 'ring'],
     scality: ['utapi', 'sso'],
 };
 
-export default class ARN {
+class ARN {
-    _partition: string;
-    _service: string;
-    _region: string | null;
-    _accountId?: string | null;
-    _resource: string;
-
     /**
      *
      * Create an ARN object from its individual components
      *
      * @constructor
-     * @param partition - ARN partition (e.g. 'aws')
+     * @param {string} partition - ARN partition (e.g. 'aws')
-     * @param service - service name in partition (e.g. 's3')
+     * @param {string} service - service name in partition (e.g. 's3')
-     * @param [region] - AWS region
+     * @param {string} [region] - AWS region
-     * @param [accountId] - AWS 12-digit account ID
+     * @param {string} [accountId] - AWS 12-digit account ID
-     * @param resource - AWS resource path (e.g. 'foo/bar')
+     * @param {string} resource - AWS resource path (e.g. 'foo/bar')
      */
-    constructor(
+    constructor(partition, service, region, accountId, resource) {
-        partition: string,
-        service: string,
-        region: string | undefined | null,
-        accountId: string | undefined | null,
-        resource: string,
-    ) {
         this._partition = partition;
         this._service = service;
         this._region = region || null;
@@ -37,7 +25,7 @@ export default class ARN {
         this._resource = resource;
     }
 
-    static createFromString(arnStr: string) {
+    static createFromString(arnStr) {
         const [arn, partition, service, region, accountId,
             resourceType, resource] = arnStr.split(':');
 
@@ -114,3 +102,5 @@ export default class ARN {
             .join(':');
     }
 }
+
+module.exports = ARN;

lib/models/BackendInfo.js

@@ -1,36 +1,22 @@
-import { RequestLogger } from 'werelogs';
+const { legacyLocations } = require('../constants');
-
+const escapeForXml = require('../s3middleware/escapeForXml').default;
-import { legacyLocations } from '../constants';
-import escapeForXml from '../s3middleware/escapeForXml';
-
-type CloudServerConfig = any;
-
-export default class BackendInfo {
-    _config: CloudServerConfig;
-    _requestEndpoint: string;
-    _objectLocationConstraint?: string;
-    _bucketLocationConstraint?: string;
-    _legacyLocationConstraint?: string;
 
+class BackendInfo {
     /**
     * Represents the info necessary to evaluate which data backend to use
     * on a data put call.
     * @constructor
-    * @param config - CloudServer config containing list of locations
+    * @param {object} config - CloudServer config containing list of locations
-    * @param objectLocationConstraint - location constraint
+    * @param {string | undefined} objectLocationConstraint - location constraint
     * for object based on user meta header
-    * @param bucketLocationConstraint - location
+    * @param {string | undefined } bucketLocationConstraint - location
     * constraint for bucket based on bucket metadata
-    * @param requestEndpoint - endpoint to which request was made
+    * @param {string} requestEndpoint - endpoint to which request was made
-    * @param legacyLocationConstraint - legacy location constraint
+    * @param {string | undefined } legacyLocationConstraint - legacy location
+    * constraint
     */
-    constructor(
+    constructor(config, objectLocationConstraint, bucketLocationConstraint,
-        config: CloudServerConfig,
+        requestEndpoint, legacyLocationConstraint) {
-        objectLocationConstraint: string | undefined,
-        bucketLocationConstraint: string | undefined,
-        requestEndpoint: string,
-        legacyLocationConstraint: string | undefined,
-    ) {
         this._config = config;
         this._objectLocationConstraint = objectLocationConstraint;
         this._bucketLocationConstraint = bucketLocationConstraint;
@@ -41,18 +27,15 @@ export default class BackendInfo {
 
     /**
      * validate proposed location constraint against config
-     * @param config - CloudServer config
+     * @param {object} config - CloudServer config
-     * @param locationConstraint - value of user
+     * @param {string | undefined} locationConstraint - value of user
      * metadata location constraint header or bucket location constraint
-     * @param log - werelogs logger
+     * @param {object} log - werelogs logger
-     * @return - true if valid, false if not
+     * @return {boolean} - true if valid, false if not
      */
-    static isValidLocationConstraint(
+    static isValidLocationConstraint(config, locationConstraint, log) {
-        config: CloudServerConfig,
+        if (Object.keys(config.locationConstraints).
-        locationConstraint: string | undefined,
+            indexOf(locationConstraint) < 0) {
-        log: RequestLogger,
-    ) {
-        if (!locationConstraint || !(locationConstraint in config.locationConstraints)) {
             log.trace('proposed locationConstraint is invalid',
                 { locationConstraint });
             return false;
@@ -62,17 +45,14 @@ export default class BackendInfo {
 
     /**
      * validate that request endpoint is listed in the restEndpoint config
-     * @param config - CloudServer config
+     * @param {object} config - CloudServer config
-     * @param requestEndpoint - request endpoint
+     * @param {string} requestEndpoint - request endpoint
-     * @param log - werelogs logger
+     * @param {object} log - werelogs logger
-     * @return true if present, false if not
+     * @return {boolean} - true if present, false if not
      */
-    static isRequestEndpointPresent(
+    static isRequestEndpointPresent(config, requestEndpoint, log) {
-        config: CloudServerConfig,
+        if (Object.keys(config.restEndpoints).
-        requestEndpoint: string,
+            indexOf(requestEndpoint) < 0) {
-        log: RequestLogger,
-    ) {
-        if (!(requestEndpoint in config.restEndpoints)) {
             log.trace('requestEndpoint does not match config restEndpoints',
                 { requestEndpoint });
             return false;
@@ -83,18 +63,14 @@ export default class BackendInfo {
     /**
      * validate that locationConstraint for request Endpoint matches
      * one config locationConstraint
-     * @param config - CloudServer config
+     * @param {object} config - CloudServer config
-     * @param requestEndpoint - request endpoint
+     * @param {string} requestEndpoint - request endpoint
-     * @param log - werelogs logger
+     * @param {object} log - werelogs logger
-     * @return - true if matches, false if not
+     * @return {boolean} - true if matches, false if not
      */
-    static isRequestEndpointValueValid(
+    static isRequestEndpointValueValid(config, requestEndpoint, log) {
-        config: CloudServerConfig,
+        if (Object.keys(config.locationConstraints).
-        requestEndpoint: string,
+            indexOf(config.restEndpoints[requestEndpoint]) < 0) {
-        log: RequestLogger,
-    ) {
-        const restEndpoint = config.restEndpoints[requestEndpoint];
-        if (!(restEndpoint in config.locationConstraints)) {
             log.trace('the default locationConstraint for request' +
                 'Endpoint does not match any config locationConstraint',
             { requestEndpoint });
@@ -105,11 +81,11 @@ export default class BackendInfo {
 
     /**
      * validate that s3 server is running with a file or memory backend
-     * @param config - CloudServer config
+     * @param {object} config - CloudServer config
-     * @param log - werelogs logger
+     * @param {object} log - werelogs logger
-     * @return - true if running with file/mem backend, false if not
+     * @return {boolean} - true if running with file/mem backend, false if not
      */
-    static isMemOrFileBackend(config: CloudServerConfig, log: RequestLogger) {
+    static isMemOrFileBackend(config, log) {
         if (config.backends.data === 'mem' || config.backends.data === 'file') {
             log.trace('use data backend for the location', {
                 dataBackend: config.backends.data,
@@ -127,16 +103,12 @@ export default class BackendInfo {
      * data backend for the location.
      * - if locationConstraint for request Endpoint does not match
      * any config locationConstraint, we will return an error
-     * @param config - CloudServer config
+     * @param {object} config - CloudServer config
-     * @param requestEndpoint - request endpoint
+     * @param {string} requestEndpoint - request endpoint
-     * @param log - werelogs logger
+     * @param {object} log - werelogs logger
-     * @return - true if valid, false if not
+     * @return {boolean} - true if valid, false if not
      */
-    static isValidRequestEndpointOrBackend(
+    static isValidRequestEndpointOrBackend(config, requestEndpoint, log) {
-        config: CloudServerConfig,
-        requestEndpoint: string,
-        log: RequestLogger,
-    ) {
         if (!BackendInfo.isRequestEndpointPresent(config, requestEndpoint,
             log)) {
             return BackendInfo.isMemOrFileBackend(config, log);
@@ -147,22 +119,17 @@ export default class BackendInfo {
 
     /**
      * validate controlling BackendInfo Parameter
-     * @param config - CloudServer config
+     * @param {object} config - CloudServer config
-     * @param objectLocationConstraint - value of user
+     * @param {string | undefined} objectLocationConstraint - value of user
      * metadata location constraint header
-     * @param bucketLocationConstraint - location
+     * @param {string | null} bucketLocationConstraint - location
      * constraint from bucket metadata
-     * @param requestEndpoint - endpoint of request
+     * @param {string} requestEndpoint - endpoint of request
-     * @param log - werelogs logger
+     * @param {object} log - werelogs logger
-     * @return - location constraint validity
+     * @return {object} - location constraint validity
      */
-    static controllingBackendParam(
+    static controllingBackendParam(config, objectLocationConstraint,
-        config: CloudServerConfig,
+        bucketLocationConstraint, requestEndpoint, log) {
-        objectLocationConstraint: string | undefined,
-        bucketLocationConstraint: string | null,
-        requestEndpoint: string,
-        log: RequestLogger,
-    ) {
         if (objectLocationConstraint) {
             if (BackendInfo.isValidLocationConstraint(config,
                 objectLocationConstraint, log)) {
@@ -208,16 +175,16 @@ export default class BackendInfo {
 
     /**
     * Return legacyLocationConstraint
-    * @param config CloudServer config
+    * @param {object} config CloudServer config
-    * @return legacyLocationConstraint;
+    * @return {string | undefined} legacyLocationConstraint;
     */
-    static getLegacyLocationConstraint(config: CloudServerConfig) {
+    static getLegacyLocationConstraint(config) {
         return legacyLocations.find(ll => config.locationConstraints[ll]);
     }
 
     /**
     * Return objectLocationConstraint
-    * @return objectLocationConstraint;
+    * @return {string | undefined} objectLocationConstraint;
     */
     getObjectLocationConstraint() {
         return this._objectLocationConstraint;
@@ -225,7 +192,7 @@ export default class BackendInfo {
 
     /**
     * Return bucketLocationConstraint
-    * @return bucketLocationConstraint;
+    * @return {string | undefined} bucketLocationConstraint;
     */
     getBucketLocationConstraint() {
         return this._bucketLocationConstraint;
@@ -233,7 +200,7 @@ export default class BackendInfo {
 
     /**
     * Return requestEndpoint
-    * @return requestEndpoint;
+    * @return {string} requestEndpoint;
     */
     getRequestEndpoint() {
         return this._requestEndpoint;
@@ -248,9 +215,9 @@ export default class BackendInfo {
     * (4) default locationConstraint for requestEndpoint  if requestEndpoint
     *     is listed in restEndpoints in config.json
     * (5) default data backend
-    * @return locationConstraint;
+    * @return {string} locationConstraint;
     */
-    getControllingLocationConstraint(): string {
+    getControllingLocationConstraint() {
         const objectLC = this.getObjectLocationConstraint();
         const bucketLC = this.getBucketLocationConstraint();
         const reqEndpoint = this.getRequestEndpoint();
@@ -269,3 +236,5 @@ export default class BackendInfo {
         return this._config.backends.data;
     }
 }
+
+module.exports = BackendInfo;

lib/models/BucketAzureInfo.js

@@ -1,86 +1,40 @@
-export type DeleteRetentionPolicy = {
-    enabled: boolean;
-    days: number;
-};
-
 /**
  * Helper class to ease access to the Azure specific information for
  * storage accounts mapped to buckets.
  */
-export default class BucketAzureInfo {
+class BucketAzureInfo {
-    _data: {
-        sku: string;
-        accessTier: string;
-        kind: string;
-        systemKeys: string[];
-        tenantKeys: string[];
-        subscriptionId: string;
-        resourceGroup: string;
-        deleteRetentionPolicy: DeleteRetentionPolicy;
-        managementPolicies: any[];
-        httpsOnly: boolean;
-        tags: any;
-        networkACL: any[];
-        cname: string;
-        azureFilesAADIntegration: boolean;
-        hnsEnabled: boolean;
-        logging: any;
-        hourMetrics: any;
-        minuteMetrics: any;
-        serviceVersion: string;
-    }
     /**
      * @constructor
-     * @param obj - Raw structure for the Azure info on storage account
+     * @param {object} obj - Raw structure for the Azure info on storage account
-     * @param obj.sku - SKU name of this storage account
+     * @param {string} obj.sku - SKU name of this storage account
-     * @param obj.accessTier - Access Tier name of this storage account
+     * @param {string} obj.accessTier - Access Tier name of this storage account
-     * @param obj.kind - Kind name of this storage account
+     * @param {string} obj.kind - Kind name of this storage account
-     * @param obj.systemKeys - pair of shared keys for the system
+     * @param {string[]} obj.systemKeys - pair of shared keys for the system
-     * @param obj.tenantKeys - pair of shared keys for the tenant
+     * @param {string[]} obj.tenantKeys - pair of shared keys for the tenant
-     * @param obj.subscriptionId - subscription ID the storage account
+     * @param {string} obj.subscriptionId - subscription ID the storage account
      *   belongs to
-     * @param obj.resourceGroup - Resource group name the storage
+     * @param {string} obj.resourceGroup - Resource group name the storage
      *   account belongs to
-     * @param obj.deleteRetentionPolicy - Delete retention policy
+     * @param {object} obj.deleteRetentionPolicy - Delete retention policy
-     * @param obj.deleteRetentionPolicy.enabled -
+     * @param {boolean} obj.deleteRetentionPolicy.enabled -
-     * @param obj.deleteRetentionPolicy.days -
+     * @param {number} obj.deleteRetentionPolicy.days -
-     * @param obj.managementPolicies - Management policies for this
+     * @param {object[]} obj.managementPolicies - Management policies for this
      *   storage account
-     * @param obj.httpsOnly - Server the content of this storage
+     * @param {boolean} obj.httpsOnly - Server the content of this storage
      *   account through HTTPS only
-     * @param obj.tags - Set of tags applied on this storage account
+     * @param {object} obj.tags - Set of tags applied on this storage account
-     * @param obj.networkACL - Network ACL of this storage account
+     * @param {object[]} obj.networkACL - Network ACL of this storage account
-     * @param obj.cname - CNAME of this storage account
+     * @param {string} obj.cname - CNAME of this storage account
-     * @param obj.azureFilesAADIntegration - whether or not Azure
+     * @param {boolean} obj.azureFilesAADIntegration - whether or not Azure
      *   Files AAD Integration is enabled for this storage account
-     * @param obj.hnsEnabled - whether or not a hierarchical namespace
+     * @param {boolean} obj.hnsEnabled - whether or not a hierarchical namespace
      *   is enabled for this storage account
-     * @param obj.logging - service properties: logging
+     * @param {object} obj.logging - service properties: logging
-     * @param obj.hourMetrics - service properties: hourMetrics
+     * @param {object} obj.hourMetrics - service properties: hourMetrics
-     * @param obj.minuteMetrics - service properties: minuteMetrics
+     * @param {object} obj.minuteMetrics - service properties: minuteMetrics
-     * @param obj.serviceVersion - service properties: serviceVersion
+     * @param {string} obj.serviceVersion - service properties: serviceVersion
      */
-    constructor(obj: {
+    constructor(obj) {
-        sku: string;
-        accessTier: string;
-        kind: string;
-        systemKeys: string[];
-        tenantKeys: string[];
-        subscriptionId: string;
-        resourceGroup: string;
-        deleteRetentionPolicy: DeleteRetentionPolicy;
-        managementPolicies: any[];
-        httpsOnly: boolean;
-        tags: any;
-        networkACL: any[];
-        cname: string;
-        azureFilesAADIntegration: boolean;
-        hnsEnabled: boolean;
-        logging: any;
-        hourMetrics: any;
-        minuteMetrics: any;
-        serviceVersion: string;
-    }) {
         this._data = {
             sku: obj.sku,
             accessTier: obj.accessTier,
@@ -108,7 +62,7 @@ export default class BucketAzureInfo {
         return this._data.sku;
     }
 
-    setSku(sku: string) {
+    setSku(sku) {
         this._data.sku = sku;
         return this;
     }
@@ -117,7 +71,7 @@ export default class BucketAzureInfo {
         return this._data.accessTier;
     }
 
-    setAccessTier(accessTier: string) {
+    setAccessTier(accessTier) {
         this._data.accessTier = accessTier;
         return this;
     }
@@ -126,7 +80,7 @@ export default class BucketAzureInfo {
         return this._data.kind;
     }
 
-    setKind(kind: string) {
+    setKind(kind) {
         this._data.kind = kind;
         return this;
     }
@@ -135,7 +89,7 @@ export default class BucketAzureInfo {
         return this._data.systemKeys;
     }
 
-    setSystemKeys(systemKeys: string[]) {
+    setSystemKeys(systemKeys) {
         this._data.systemKeys = systemKeys;
         return this;
     }
@@ -144,7 +98,7 @@ export default class BucketAzureInfo {
         return this._data.tenantKeys;
     }
 
-    setTenantKeys(tenantKeys: string[]) {
+    setTenantKeys(tenantKeys) {
         this._data.tenantKeys = tenantKeys;
         return this;
     }
@@ -153,7 +107,7 @@ export default class BucketAzureInfo {
         return this._data.subscriptionId;
     }
 
-    setSubscriptionId(subscriptionId: string) {
+    setSubscriptionId(subscriptionId) {
         this._data.subscriptionId = subscriptionId;
         return this;
     }
@@ -162,7 +116,7 @@ export default class BucketAzureInfo {
         return this._data.resourceGroup;
     }
 
-    setResourceGroup(resourceGroup: string) {
+    setResourceGroup(resourceGroup) {
         this._data.resourceGroup = resourceGroup;
         return this;
     }
@@ -171,7 +125,7 @@ export default class BucketAzureInfo {
         return this._data.deleteRetentionPolicy;
     }
 
-    setDeleteRetentionPolicy(deleteRetentionPolicy: DeleteRetentionPolicy) {
+    setDeleteRetentionPolicy(deleteRetentionPolicy) {
         this._data.deleteRetentionPolicy = deleteRetentionPolicy;
         return this;
     }
@@ -180,7 +134,7 @@ export default class BucketAzureInfo {
         return this._data.managementPolicies;
     }
 
-    setManagementPolicies(managementPolicies: any[]) {
+    setManagementPolicies(managementPolicies) {
         this._data.managementPolicies = managementPolicies;
         return this;
     }
@@ -189,7 +143,7 @@ export default class BucketAzureInfo {
         return this._data.httpsOnly;
     }
 
-    setHttpsOnly(httpsOnly: boolean) {
+    setHttpsOnly(httpsOnly) {
         this._data.httpsOnly = httpsOnly;
         return this;
     }
@@ -198,7 +152,7 @@ export default class BucketAzureInfo {
         return this._data.tags;
     }
 
-    setTags(tags: any) {
+    setTags(tags) {
         this._data.tags = tags;
         return this;
     }
@@ -207,7 +161,7 @@ export default class BucketAzureInfo {
         return this._data.networkACL;
     }
 
-    setNetworkACL(networkACL: any[]) {
+    setNetworkACL(networkACL) {
         this._data.networkACL = networkACL;
         return this;
     }
@@ -216,7 +170,7 @@ export default class BucketAzureInfo {
         return this._data.cname;
     }
 
-    setCname(cname: string) {
+    setCname(cname) {
         this._data.cname = cname;
         return this;
     }
@@ -225,7 +179,7 @@ export default class BucketAzureInfo {
         return this._data.azureFilesAADIntegration;
     }
 
-    setAzureFilesAADIntegration(azureFilesAADIntegration: boolean) {
+    setAzureFilesAADIntegration(azureFilesAADIntegration) {
         this._data.azureFilesAADIntegration = azureFilesAADIntegration;
         return this;
     }
@@ -234,7 +188,7 @@ export default class BucketAzureInfo {
         return this._data.hnsEnabled;
     }
 
-    setHnsEnabled(hnsEnabled: boolean) {
+    setHnsEnabled(hnsEnabled) {
         this._data.hnsEnabled = hnsEnabled;
         return this;
     }
@@ -243,7 +197,7 @@ export default class BucketAzureInfo {
         return this._data.logging;
     }
 
-    setLogging(logging: any) {
+    setLogging(logging) {
         this._data.logging = logging;
         return this;
     }
@@ -252,7 +206,7 @@ export default class BucketAzureInfo {
         return this._data.hourMetrics;
     }
 
-    setHourMetrics(hourMetrics: any) {
+    setHourMetrics(hourMetrics) {
         this._data.hourMetrics = hourMetrics;
         return this;
     }
@@ -261,7 +215,7 @@ export default class BucketAzureInfo {
         return this._data.minuteMetrics;
     }
 
-    setMinuteMetrics(minuteMetrics: any) {
+    setMinuteMetrics(minuteMetrics) {
         this._data.minuteMetrics = minuteMetrics;
         return this;
     }
@@ -270,7 +224,7 @@ export default class BucketAzureInfo {
         return this._data.serviceVersion;
     }
 
-    setServiceVersion(serviceVersion: any) {
+    setServiceVersion(serviceVersion) {
         this._data.serviceVersion = serviceVersion;
         return this;
     }
@@ -279,3 +233,5 @@ export default class BucketAzureInfo {
         return this._data;
     }
 }
+
+module.exports = BucketAzureInfo;

lib/models/BucketInfo.js

@@ -1,194 +1,81 @@
-import assert from 'assert';
+const assert = require('assert');
-import uuid from 'uuid/v4';
+const uuid = require('uuid/v4');
 
-import { WebsiteConfiguration } from './WebsiteConfiguration';
+const { WebsiteConfiguration } = require('./WebsiteConfiguration');
-import ReplicationConfiguration from './ReplicationConfiguration';
+const ReplicationConfiguration = require('./ReplicationConfiguration');
-import LifecycleConfiguration from './LifecycleConfiguration';
+const LifecycleConfiguration = require('./LifecycleConfiguration');
-import ObjectLockConfiguration from './ObjectLockConfiguration';
+const ObjectLockConfiguration = require('./ObjectLockConfiguration');
-import BucketPolicy from './BucketPolicy';
+const BucketPolicy = require('./BucketPolicy');
-import NotificationConfiguration from './NotificationConfiguration';
+const NotificationConfiguration = require('./NotificationConfiguration');
-import { ACL as OACL } from './ObjectMD';
-import { areTagsValid, BucketTag } from '../s3middleware/tagging';
 
 // WHEN UPDATING THIS NUMBER, UPDATE BucketInfoModelVersion.md CHANGELOG
 // BucketInfoModelVersion.md can be found in documentation/ at the root
 // of this repository
-const modelVersion = 16;
+const modelVersion = 14;
-
-export type CORS = {
-    id: string;
-    allowedMethods: string[];
-    allowedOrigins: string[];
-    allowedHeaders: string[];
-    maxAgeSeconds: number;
-    exposeHeaders: string[];
-}[];
-
-export type SSE = {
-    cryptoScheme: number;
-    algorithm: string;
-    masterKeyId: string;
-    configuredMasterKeyId: string;
-    mandatory: boolean;
-};
-
-export type VersioningConfiguration = {
-    Status: string;
-    MfaDelete: any;
-};
-
-export type VeeamSOSApi = {
-    SystemInfo?: {
-        ProtocolVersion: string,
-        ModelName: string,
-        ProtocolCapabilities: {
-            CapacityInfo: boolean,
-            UploadSessions: boolean,
-            IAMSTS?: boolean,
-        },
-        APIEndpoints?: {
-            IAMEndpoint: string,
-            STSEndpoint: string,
-        },
-        SystemRecommendations?: {
-            S3ConcurrentTaskLimit: number,
-            S3MultiObjectDelete: number,
-            StorageCurrentTasksLimit: number,
-            KbBlockSize: number,
-        }
-        LastModified?: string,
-    },
-    CapacityInfo?: {
-        Capacity: number,
-        Available: number,
-        Used: number,
-        LastModified?: string,
-    },
-};
-
-// Capabilities contains all specifics from external products supported by
-// our S3 implementation, at bucket level
-export type Capabilities = {
-    VeeamSOSApi?: VeeamSOSApi,
-};
-
-export type ACL = OACL & { WRITE: string[] }
-
-export default class BucketInfo {
-    _acl: ACL;
-    _name: string;
-    _owner: string;
-    _ownerDisplayName: string;
-    _creationDate: string;
-    _mdBucketModelVersion: number;
-    _transient: boolean;
-    _deleted: boolean;
-    _serverSideEncryption: SSE;
-    _versioningConfiguration: VersioningConfiguration;
-    _locationConstraint: string | null;
-    _websiteConfiguration?: WebsiteConfiguration | null;
-    _cors: CORS | null;
-    _replicationConfiguration?: any;
-    _lifecycleConfiguration?: any;
-    _bucketPolicy?: any;
-    _uid?: string;
-    _objectLockEnabled?: boolean;
-    _objectLockConfiguration?: any;
-    _notificationConfiguration?: any;
-    _tags?: Array<BucketTag>;
-    _readLocationConstraint: string | null;
-    _isNFS: boolean | null;
-    _azureInfo: any | null;
-    _ingestion: { status: 'enabled' | 'disabled' } | null;
-    _capabilities?: Capabilities;
-    _quotaMax: number | 0;
 
+class BucketInfo {
     /**
     * Represents all bucket information.
     * @constructor
-    * @param name - bucket name
+    * @param {string} name - bucket name
-    * @param owner - bucket owner's name
+    * @param {string} owner - bucket owner's name
-    * @param ownerDisplayName - owner's display name
+    * @param {string} ownerDisplayName - owner's display name
-    * @param creationDate - creation date of bucket
+    * @param {object} creationDate - creation date of bucket
-    * @param mdBucketModelVersion - bucket model version
+    * @param {number} mdBucketModelVersion - bucket model version
-    * @param [acl] - bucket ACLs (no need to copy
+    * @param {object} [acl] - bucket ACLs (no need to copy
     * ACL object since referenced object will not be used outside of
     * BucketInfo instance)
-    * @param transient - flag indicating whether bucket is transient
+    * @param {boolean} transient - flag indicating whether bucket is transient
-    * @param deleted - flag indicating whether attempt to delete
+    * @param {boolean} deleted - flag indicating whether attempt to delete
-    * @param serverSideEncryption - sse information for this bucket
+    * @param {object} serverSideEncryption - sse information for this bucket
-    * @param serverSideEncryption.cryptoScheme -
+    * @param {number} serverSideEncryption.cryptoScheme -
     * cryptoScheme used
-    * @param serverSideEncryption.algorithm -
+    * @param {string} serverSideEncryption.algorithm -
     * algorithm to use
-    * @param serverSideEncryption.masterKeyId -
+    * @param {string} serverSideEncryption.masterKeyId -
     * key to get master key
-    * @param serverSideEncryption.configuredMasterKeyId -
+    * @param {string} serverSideEncryption.configuredMasterKeyId -
     * custom KMS key id specified by user
-    * @param serverSideEncryption.mandatory -
+    * @param {boolean} serverSideEncryption.mandatory -
     * true for mandatory encryption
     * bucket has been made
-    * @param versioningConfiguration - versioning configuration
+    * @param {object} versioningConfiguration - versioning configuration
-    * @param versioningConfiguration.Status - versioning status
+    * @param {string} versioningConfiguration.Status - versioning status
-    * @param versioningConfiguration.MfaDelete - versioning mfa delete
+    * @param {object} versioningConfiguration.MfaDelete - versioning mfa delete
-    * @param locationConstraint - locationConstraint for bucket that
+    * @param {string} locationConstraint - locationConstraint for bucket that
     * also includes the ingestion flag
-    * @param [websiteConfiguration] - website
+    * @param {WebsiteConfiguration} [websiteConfiguration] - website
     * configuration
-    * @param [cors] - collection of CORS rules to apply
+    * @param {object[]} [cors] - collection of CORS rules to apply
-    * @param [cors[].id] - optional ID to identify rule
+    * @param {string} [cors[].id] - optional ID to identify rule
-    * @param cors[].allowedMethods - methods allowed for CORS request
+    * @param {string[]} cors[].allowedMethods - methods allowed for CORS request
-    * @param cors[].allowedOrigins - origins allowed for CORS request
+    * @param {string[]} cors[].allowedOrigins - origins allowed for CORS request
-    * @param [cors[].allowedHeaders] - headers allowed in an OPTIONS
+    * @param {string[]} [cors[].allowedHeaders] - headers allowed in an OPTIONS
     * request via the Access-Control-Request-Headers header
-    * @param [cors[].maxAgeSeconds] - seconds browsers should cache
+    * @param {number} [cors[].maxAgeSeconds] - seconds browsers should cache
     * OPTIONS response
-    * @param [cors[].exposeHeaders] - headers expose to applications
+    * @param {string[]} [cors[].exposeHeaders] - headers expose to applications
-    * @param [replicationConfiguration] - replication configuration
+    * @param {object} [replicationConfiguration] - replication configuration
-    * @param [lifecycleConfiguration] - lifecycle configuration
+    * @param {object} [lifecycleConfiguration] - lifecycle configuration
-    * @param [bucketPolicy] - bucket policy
+    * @param {object} [bucketPolicy] - bucket policy
-    * @param [uid] - unique identifier for the bucket, necessary
+    * @param {string} [uid] - unique identifier for the bucket, necessary
-    * @param readLocationConstraint - readLocationConstraint for bucket
+    * @param {string} readLocationConstraint - readLocationConstraint for bucket
     * addition for use with lifecycle operations
-    * @param [isNFS] - whether the bucket is on NFS
+    * @param {boolean} [isNFS] - whether the bucket is on NFS
-    * @param [ingestionConfig] - object for ingestion status: en/dis
+    * @param {object} [ingestionConfig] - object for ingestion status: en/dis
-    * @param [azureInfo] - Azure storage account specific info
+    * @param {object} [azureInfo] - Azure storage account specific info
-    * @param [objectLockEnabled] - true when object lock enabled
+    * @param {boolean} [objectLockEnabled] - true when object lock enabled
-    * @param [objectLockConfiguration] - object lock configuration
+    * @param {object} [objectLockConfiguration] - object lock configuration
-    * @param [notificationConfiguration] - bucket notification configuration
+    * @param {object} [notificationConfiguration] - bucket notification configuration
-    * @param [tags] - bucket tag set
-    * @param [capabilities] - capabilities for the bucket
-    * @param quotaMax - bucket quota
     */
-    constructor(
+    constructor(name, owner, ownerDisplayName, creationDate,
-        name: string,
+        mdBucketModelVersion, acl, transient, deleted,
-        owner: string,
+        serverSideEncryption, versioningConfiguration,
-        ownerDisplayName: string,
+        locationConstraint, websiteConfiguration, cors,
-        creationDate: string,
+        replicationConfiguration, lifecycleConfiguration,
-        mdBucketModelVersion: number,
+        bucketPolicy, uid, readLocationConstraint, isNFS,
-        acl: ACL | undefined,
+        ingestionConfig, azureInfo, objectLockEnabled,
-        transient: boolean,
+        objectLockConfiguration, notificationConfiguration) {
-        deleted: boolean,
-        serverSideEncryption: SSE,
-        versioningConfiguration: VersioningConfiguration,
-        locationConstraint: string,
-        websiteConfiguration?: WebsiteConfiguration | null,
-        cors?: CORS,
-        replicationConfiguration?: any,
-        lifecycleConfiguration?: any,
-        bucketPolicy?: any,
-        uid?: string,
-        readLocationConstraint?: string,
-        isNFS?: boolean,
-        ingestionConfig?: { status: 'enabled' | 'disabled' },
-        azureInfo?: any,
-        objectLockEnabled?: boolean,
-        objectLockConfiguration?: any,
-        notificationConfiguration?: any,
-        tags?: Array<BucketTag> | [],
-        capabilities?: Capabilities,
-        quotaMax?: number | 0,
-    ) {
         assert.strictEqual(typeof name, 'string');
         assert.strictEqual(typeof owner, 'string');
         assert.strictEqual(typeof ownerDisplayName, 'string');
@@ -240,10 +127,8 @@ export default class BucketInfo {
         }
         if (websiteConfiguration) {
             assert(websiteConfiguration instanceof WebsiteConfiguration);
-            const indexDocument = websiteConfiguration.getIndexDocument();
+            const { indexDocument, errorDocument, redirectAllRequestsTo,
-            const errorDocument = websiteConfiguration.getErrorDocument();
+                routingRules } = websiteConfiguration;
-            const redirectAllRequestsTo = websiteConfiguration.getRedirectAllRequestsTo();
-            const routingRules = websiteConfiguration.getRoutingRules();
             assert(indexDocument === undefined ||
                 typeof indexDocument === 'string');
             assert(errorDocument === undefined ||
@@ -275,7 +160,7 @@ export default class BucketInfo {
         if (notificationConfiguration) {
             NotificationConfiguration.validateConfig(notificationConfiguration);
         }
-        const aclInstance: ACL = acl || {
+        const aclInstance = acl || {
             Canned: 'private',
             FULL_CONTROL: [],
             WRITE: [],
@@ -284,15 +169,6 @@ export default class BucketInfo {
             READ_ACP: [],
         };
 
-        if (tags === undefined) {
-            tags = [] as BucketTag[];
-        }
-        assert.strictEqual(areTagsValid(tags), true);
-        if (quotaMax) {
-            assert.strictEqual(typeof quotaMax, 'number');
-            assert(quotaMax >= 0, 'Quota cannot be negative');
-        }
-
         // IF UPDATING PROPERTIES, INCREMENT MODELVERSION NUMBER ABOVE
         this._acl = aclInstance;
         this._name = name;
@@ -318,15 +194,11 @@ export default class BucketInfo {
         this._objectLockEnabled = objectLockEnabled || false;
         this._objectLockConfiguration = objectLockConfiguration || null;
         this._notificationConfiguration = notificationConfiguration || null;
-        this._tags = tags;
-        this._capabilities = capabilities || undefined;
-        this._quotaMax = quotaMax || 0;
         return this;
     }
-
     /**
     * Serialize the object
-    * @return - stringified object
+    * @return {string} - stringified object
     */
     serialize() {
         const bucketInfos = {
@@ -354,24 +226,19 @@ export default class BucketInfo {
             objectLockEnabled: this._objectLockEnabled,
             objectLockConfiguration: this._objectLockConfiguration,
             notificationConfiguration: this._notificationConfiguration,
-            tags: this._tags,
-            capabilities: this._capabilities,
-            quotaMax: this._quotaMax,
         };
-        const final = this._websiteConfiguration
+        if (this._websiteConfiguration) {
-            ? {
+            bucketInfos.websiteConfiguration =
-                  ...bucketInfos,
+                this._websiteConfiguration.getConfig();
-                  websiteConfiguration: this._websiteConfiguration.getConfig(),
         }
-            : bucketInfos;
+        return JSON.stringify(bucketInfos);
-        return JSON.stringify(final);
     }
     /**
      * deSerialize the JSON string
-     * @param stringBucket - the stringified bucket
+     * @param {string} stringBucket - the stringified bucket
-     * @return - parsed string
+     * @return {object} - parsed string
      */
-    static deSerialize(stringBucket: string) {
+    static deSerialize(stringBucket) {
         const obj = JSON.parse(stringBucket);
         const websiteConfig = obj.websiteConfiguration ?
             new WebsiteConfiguration(obj.websiteConfiguration) : null;
@@ -382,13 +249,12 @@ export default class BucketInfo {
             obj.cors, obj.replicationConfiguration, obj.lifecycleConfiguration,
             obj.bucketPolicy, obj.uid, obj.readLocationConstraint, obj.isNFS,
             obj.ingestion, obj.azureInfo, obj.objectLockEnabled,
-            obj.objectLockConfiguration, obj.notificationConfiguration, obj.tags,
+            obj.objectLockConfiguration, obj.notificationConfiguration);
-            obj.capabilities, obj.quotaMax);
     }
 
     /**
      * Returns the current model version for the data structure
-     * @return - the current model version set above in the file
+     * @return {number} - the current model version set above in the file
      */
     static currentModelVersion() {
         return modelVersion;
@@ -397,10 +263,10 @@ export default class BucketInfo {
     /**
      * Create a BucketInfo from an object
      *
-     * @param data - object containing data
+     * @param {object} data - object containing data
-     * @return Return an BucketInfo
+     * @return {BucketInfo} Return an BucketInfo
      */
-    static fromObj(data: any) {
+    static fromObj(data) {
         return new BucketInfo(data._name, data._owner, data._ownerDisplayName,
             data._creationDate, data._mdBucketModelVersion, data._acl,
             data._transient, data._deleted, data._serverSideEncryption,
@@ -410,80 +276,79 @@ export default class BucketInfo {
             data._bucketPolicy, data._uid, data._readLocationConstraint,
             data._isNFS, data._ingestion, data._azureInfo,
             data._objectLockEnabled, data._objectLockConfiguration,
-            data._notificationConfiguration, data._tags, data._capabilities,
+            data._notificationConfiguration);
-            data._quotaMax);
     }
 
     /**
     * Get the ACLs.
-    * @return acl
+    * @return {object} acl
     */
     getAcl() {
         return this._acl;
     }
     /**
     * Set the canned acl's.
-    * @param cannedACL - canned ACL being set
+    * @param {string} cannedACL - canned ACL being set
-    * @return - bucket info instance
+    * @return {BucketInfo} - bucket info instance
     */
-    setCannedAcl(cannedACL: string) {
+    setCannedAcl(cannedACL) {
         this._acl.Canned = cannedACL;
         return this;
     }
     /**
     * Set a specific ACL.
-    * @param canonicalID - id for account being given access
+    * @param {string} canonicalID - id for account being given access
-    * @param typeOfGrant - type of grant being granted
+    * @param {string} typeOfGrant - type of grant being granted
-    * @return - bucket info instance
+    * @return {BucketInfo} - bucket info instance
     */
-    setSpecificAcl(canonicalID: string, typeOfGrant: string) {
+    setSpecificAcl(canonicalID, typeOfGrant) {
         this._acl[typeOfGrant].push(canonicalID);
         return this;
     }
     /**
     * Set all ACLs.
-    * @param acl - new set of ACLs
+    * @param {object} acl - new set of ACLs
-    * @return - bucket info instance
+    * @return {BucketInfo} - bucket info instance
     */
-    setFullAcl(acl: ACL) {
+    setFullAcl(acl) {
         this._acl = acl;
         return this;
     }
     /**
      * Get the server side encryption information
-     * @return serverSideEncryption
+     * @return {object} serverSideEncryption
      */
     getServerSideEncryption() {
         return this._serverSideEncryption;
     }
     /**
      * Set server side encryption information
-     * @param serverSideEncryption - server side encryption information
+     * @param {object} serverSideEncryption - server side encryption information
-     * @return - bucket info instance
+     * @return {BucketInfo} - bucket info instance
      */
-    setServerSideEncryption(serverSideEncryption: SSE) {
+    setServerSideEncryption(serverSideEncryption) {
         this._serverSideEncryption = serverSideEncryption;
         return this;
     }
     /**
      * Get the versioning configuration information
-     * @return versioningConfiguration
+     * @return {object} versioningConfiguration
      */
     getVersioningConfiguration() {
         return this._versioningConfiguration;
     }
     /**
      * Set versioning configuration information
-     * @param versioningConfiguration - versioning information
+     * @param {object} versioningConfiguration - versioning information
-     * @return - bucket info instance
+     * @return {BucketInfo} - bucket info instance
      */
-    setVersioningConfiguration(versioningConfiguration: VersioningConfiguration) {
+    setVersioningConfiguration(versioningConfiguration) {
         this._versioningConfiguration = versioningConfiguration;
         return this;
     }
     /**
      * Check that versioning is 'Enabled' on the given bucket.
-     * @return - `true` if versioning is 'Enabled', otherwise `false`
+     * @return {boolean} - `true` if versioning is 'Enabled', otherwise `false`
      */
     isVersioningEnabled() {
         const versioningConfig = this.getVersioningConfiguration();
@@ -491,32 +356,32 @@ export default class BucketInfo {
     }
     /**
      * Get the website configuration information
-     * @return websiteConfiguration
+     * @return {object} websiteConfiguration
      */
     getWebsiteConfiguration() {
         return this._websiteConfiguration;
     }
     /**
      * Set website configuration information
-     * @param websiteConfiguration - configuration for bucket website
+     * @param {object} websiteConfiguration - configuration for bucket website
-     * @return - bucket info instance
+     * @return {BucketInfo} - bucket info instance
      */
-    setWebsiteConfiguration(websiteConfiguration: WebsiteConfiguration) {
+    setWebsiteConfiguration(websiteConfiguration) {
         this._websiteConfiguration = websiteConfiguration;
         return this;
     }
     /**
      * Set replication configuration information
-     * @param replicationConfiguration - replication information
+     * @param {object} replicationConfiguration - replication information
-     * @return - bucket info instance
+     * @return {BucketInfo} - bucket info instance
      */
-    setReplicationConfiguration(replicationConfiguration: any) {
+    setReplicationConfiguration(replicationConfiguration) {
         this._replicationConfiguration = replicationConfiguration;
         return this;
     }
     /**
      * Get replication configuration information
-     * @return replication configuration information or `null` if
+     * @return {object|null} replication configuration information or `null` if
      * the bucket does not have a replication configuration
      */
     getReplicationConfiguration() {
@@ -524,7 +389,7 @@ export default class BucketInfo {
     }
     /**
      * Get lifecycle configuration information
-     * @return lifecycle configuration information or `null` if
+     * @return {object|null} lifecycle configuration information or `null` if
      * the bucket does not have a lifecycle configuration
      */
     getLifecycleConfiguration() {
@@ -532,16 +397,16 @@ export default class BucketInfo {
     }
     /**
      * Set lifecycle configuration information
-     * @param lifecycleConfiguration - lifecycle information
+     * @param {object} lifecycleConfiguration - lifecycle information
-     * @return - bucket info instance
+     * @return {BucketInfo} - bucket info instance
      */
-    setLifecycleConfiguration(lifecycleConfiguration: any) {
+    setLifecycleConfiguration(lifecycleConfiguration) {
         this._lifecycleConfiguration = lifecycleConfiguration;
         return this;
     }
     /**
      * Get bucket policy statement
-     * @return bucket policy statement or `null` if the bucket
+     * @return {object|null} bucket policy statement or `null` if the bucket
      * does not have a bucket policy
      */
     getBucketPolicy() {
@@ -549,16 +414,16 @@ export default class BucketInfo {
     }
     /**
      * Set bucket policy statement
-     * @param bucketPolicy - bucket policy
+     * @param {object} bucketPolicy - bucket policy
-     * @return - bucket info instance
+     * @return {BucketInfo} - bucket info instance
      */
-    setBucketPolicy(bucketPolicy: any) {
+    setBucketPolicy(bucketPolicy) {
         this._bucketPolicy = bucketPolicy;
         return this;
     }
     /**
      * Get object lock configuration
-     * @return object lock configuration information or `null` if
+     * @return {object|null} object lock configuration information or `null` if
      * the bucket does not have an object lock configuration
      */
     getObjectLockConfiguration() {
@@ -566,16 +431,16 @@ export default class BucketInfo {
     }
     /**
      * Set object lock configuration
-     * @param objectLockConfiguration - object lock information
+     * @param {object} objectLockConfiguration - object lock information
-     * @return - bucket info instance
+     * @return {BucketInfo} - bucket info instance
      */
-    setObjectLockConfiguration(objectLockConfiguration: any) {
+    setObjectLockConfiguration(objectLockConfiguration) {
         this._objectLockConfiguration = objectLockConfiguration;
         return this;
     }
     /**
      * Get notification configuration
-     * @return notification configuration information or 'null' if
+     * @return {object|null} notification configuration information or 'null' if
      * the bucket does not have a notification configuration
      */
     getNotificationConfiguration() {
@@ -583,41 +448,41 @@ export default class BucketInfo {
     }
     /**
      * Set notification configuraiton
-     * @param notificationConfiguration - bucket notification information
+     * @param {object} notificationConfiguration - bucket notification information
-     * @return - bucket info instance
+     * @return {BucketInfo} - bucket info instance
      */
-    setNotificationConfiguration(notificationConfiguration: any) {
+    setNotificationConfiguration(notificationConfiguration) {
         this._notificationConfiguration = notificationConfiguration;
         return this;
     }
     /**
      * Get cors resource
-     * @return cors
+     * @return {object[]} cors
      */
     getCors() {
         return this._cors;
     }
     /**
      * Set cors resource
-     * @param rules - collection of CORS rules
+     * @param {object[]} rules - collection of CORS rules
-     * @param  [rules.id] - optional id to identify rule
+     * @param {string} [rules.id] - optional id to identify rule
-     * @param rules[].allowedMethods - methods allowed for CORS
+     * @param {string[]} rules[].allowedMethods - methods allowed for CORS
-     * @param rules[].allowedOrigins - origins allowed for CORS
+     * @param {string[]} rules[].allowedOrigins - origins allowed for CORS
-     * @param [rules[].allowedHeaders] - headers allowed in an
+     * @param {string[]} [rules[].allowedHeaders] - headers allowed in an
      * OPTIONS request via the Access-Control-Request-Headers header
-     * @param [rules[].maxAgeSeconds] - seconds browsers should cache
+     * @param {number} [rules[].maxAgeSeconds] - seconds browsers should cache
      * OPTIONS response
-     * @param [rules[].exposeHeaders] - headers to expose to external
+     * @param {string[]} [rules[].exposeHeaders] - headers to expose to external
      * applications
-     * @return - bucket info instance
+     * @return {BucketInfo} - bucket info instance
      */
-    setCors(rules: CORS) {
+    setCors(rules) {
         this._cors = rules;
         return this;
     }
     /**
      * get the serverside encryption algorithm
-     * @return - sse algorithm used by this bucket
+     * @return {string} - sse algorithm used by this bucket
      */
     getSseAlgorithm() {
         if (!this._serverSideEncryption) {
@@ -627,7 +492,7 @@ export default class BucketInfo {
     }
     /**
      * get the server side encryption master key Id
-     * @return -  sse master key Id used by this bucket
+     * @return {string} -  sse master key Id used by this bucket
      */
     getSseMasterKeyId() {
         if (!this._serverSideEncryption) {
@@ -637,72 +502,72 @@ export default class BucketInfo {
     }
     /**
     * Get bucket name.
-    * @return - bucket name
+    * @return {string} - bucket name
     */
     getName() {
         return this._name;
     }
     /**
     * Set bucket name.
-    * @param bucketName - new bucket name
+    * @param {string} bucketName - new bucket name
-    * @return - bucket info instance
+    * @return {BucketInfo} - bucket info instance
     */
-    setName(bucketName: string) {
+    setName(bucketName) {
         this._name = bucketName;
         return this;
     }
     /**
     * Get bucket owner.
-    * @return - bucket owner's canonicalID
+    * @return {string} - bucket owner's canonicalID
     */
     getOwner() {
         return this._owner;
     }
     /**
     * Set bucket owner.
-    * @param ownerCanonicalID - bucket owner canonicalID
+    * @param {string} ownerCanonicalID - bucket owner canonicalID
-    * @return - bucket info instance
+    * @return {BucketInfo} - bucket info instance
     */
-    setOwner(ownerCanonicalID: string) {
+    setOwner(ownerCanonicalID) {
         this._owner = ownerCanonicalID;
         return this;
     }
     /**
     * Get bucket owner display name.
-    * @return - bucket owner dispaly name
+    * @return {string} - bucket owner dispaly name
     */
     getOwnerDisplayName() {
         return this._ownerDisplayName;
     }
     /**
     * Set bucket owner display name.
-    * @param ownerDisplayName - bucket owner display name
+    * @param {string} ownerDisplayName - bucket owner display name
-    * @return - bucket info instance
+    * @return {BucketInfo} - bucket info instance
     */
-    setOwnerDisplayName(ownerDisplayName: string) {
+    setOwnerDisplayName(ownerDisplayName) {
         this._ownerDisplayName = ownerDisplayName;
         return this;
     }
     /**
     * Get bucket creation date.
-    * @return - bucket creation date
+    * @return {object} - bucket creation date
     */
     getCreationDate() {
         return this._creationDate;
     }
     /**
     * Set location constraint.
-    * @param location - bucket location constraint
+    * @param {string} location - bucket location constraint
-    * @return - bucket info instance
+    * @return {BucketInfo} - bucket info instance
     */
-    setLocationConstraint(location: string) {
+    setLocationConstraint(location) {
         this._locationConstraint = location;
         return this;
     }
 
     /**
     * Get location constraint.
-    * @return - bucket location constraint
+    * @return {string} - bucket location constraint
     */
     getLocationConstraint() {
         return this._locationConstraint;
@@ -710,7 +575,7 @@ export default class BucketInfo {
 
     /**
     * Get read location constraint.
-    * @return - bucket read location constraint
+    * @return {string} - bucket read location constraint
     */
     getReadLocationConstraint() {
         if (this._readLocationConstraint) {
@@ -722,24 +587,24 @@ export default class BucketInfo {
     /**
      * Set Bucket model version
      *
-     * @param version - Model version
+     * @param {number} version - Model version
-     * @return - bucket info instance
+     * @return {BucketInfo} - bucket info instance
      */
-    setMdBucketModelVersion(version: number) {
+    setMdBucketModelVersion(version) {
         this._mdBucketModelVersion = version;
         return this;
     }
     /**
      * Get Bucket model version
      *
-     * @return Bucket model version
+     * @return {number} Bucket model version
      */
     getMdBucketModelVersion() {
         return this._mdBucketModelVersion;
     }
     /**
     * Add transient flag.
-    * @return - bucket info instance
+    * @return {BucketInfo} - bucket info instance
     */
     addTransientFlag() {
         this._transient = true;
@@ -747,7 +612,7 @@ export default class BucketInfo {
     }
     /**
     * Remove transient flag.
-    * @return - bucket info instance
+    * @return {BucketInfo} - bucket info instance
     */
     removeTransientFlag() {
         this._transient = false;
@@ -755,14 +620,14 @@ export default class BucketInfo {
     }
     /**
     * Check transient flag.
-    * @return - depending on whether transient flag in place
+    * @return {boolean} - depending on whether transient flag in place
     */
     hasTransientFlag() {
         return !!this._transient;
     }
     /**
     * Add deleted flag.
-    * @return - bucket info instance
+    * @return {BucketInfo} - bucket info instance
     */
     addDeletedFlag() {
         this._deleted = true;
@@ -770,7 +635,7 @@ export default class BucketInfo {
     }
     /**
     * Remove deleted flag.
-    * @return - bucket info instance
+    * @return {BucketInfo} - bucket info instance
     */
     removeDeletedFlag() {
         this._deleted = false;
@@ -778,14 +643,14 @@ export default class BucketInfo {
     }
     /**
     * Check deleted flag.
-    * @return - depending on whether deleted flag in place
+    * @return {boolean} - depending on whether deleted flag in place
     */
     hasDeletedFlag() {
         return !!this._deleted;
     }
     /**
      * Check if the versioning mode is on.
-     * @return - versioning mode status
+     * @return {boolean} - versioning mode status
      */
     isVersioningOn() {
         return this._versioningConfiguration &&
@@ -793,39 +658,39 @@ export default class BucketInfo {
     }
     /**
      * Get unique id of bucket.
-     * @return - unique id
+     * @return {string} - unique id
      */
     getUid() {
         return this._uid;
     }
     /**
      * Set unique id of bucket.
-     * @param uid - unique identifier for the bucket
+     * @param {string} uid - unique identifier for the bucket
-     * @return - bucket info instance
+     * @return {BucketInfo} - bucket info instance
      */
-    setUid(uid: string) {
+    setUid(uid) {
         this._uid = uid;
         return this;
     }
     /**
      * Check if the bucket is an NFS bucket.
-     * @return - Wether the bucket is NFS or not
+     * @return {boolean} - Wether the bucket is NFS or not
      */
     isNFS() {
         return this._isNFS;
     }
     /**
      * Set whether the bucket is an NFS bucket.
-     * @param isNFS - Wether the bucket is NFS or not
+     * @param {boolean} isNFS - Wether the bucket is NFS or not
-     * @return - bucket info instance
+     * @return {BucketInfo} - bucket info instance
      */
-    setIsNFS(isNFS: boolean) {
+    setIsNFS(isNFS) {
         this._isNFS = isNFS;
         return this;
     }
     /**
      * enable ingestion, set 'this._ingestion' to { status: 'enabled' }
-     * @return - bucket info instance
+     * @return {BucketInfo} - bucket info instance
      */
     enableIngestion() {
         this._ingestion = { status: 'enabled' };
@@ -833,7 +698,7 @@ export default class BucketInfo {
     }
     /**
      * disable ingestion, set 'this._ingestion' to { status: 'disabled' }
-     * @return - bucket info instance
+     * @return {BucketInfo} - bucket info instance
      */
     disableIngestion() {
         this._ingestion = { status: 'disabled' };
@@ -841,7 +706,7 @@ export default class BucketInfo {
     }
     /**
      * Get ingestion configuration
-     * @return - bucket ingestion configuration: Enabled or Disabled
+     * @return {object} - bucket ingestion configuration: Enabled or Disabled
      */
     getIngestion() {
         return this._ingestion;
@@ -849,7 +714,7 @@ export default class BucketInfo {
 
     /**
      ** Check if bucket is an ingestion bucket
-     * @return - 'true' if bucket is ingestion bucket, 'false' if
+     * @return {boolean} - 'true' if bucket is ingestion bucket, 'false' if
      * otherwise
      */
     isIngestionBucket() {
@@ -861,7 +726,7 @@ export default class BucketInfo {
     }
     /**
      * Check if ingestion is enabled
-     * @return - 'true' if ingestion is enabled, otherwise 'false'
+     * @return {boolean} - 'true' if ingestion is enabled, otherwise 'false'
      */
     isIngestionEnabled() {
         const ingestionConfig = this.getIngestion();
@@ -870,7 +735,7 @@ export default class BucketInfo {
 
     /**
      * Return the Azure specific storage account information for this bucket
-     * @return - a structure suitable for {@link BucketAzureIno}
+     * @return {object} - a structure suitable for {@link BucketAzureIno}
      *   constructor
      */
     getAzureInfo() {
@@ -878,93 +743,30 @@ export default class BucketInfo {
     }
     /**
      * Set the Azure specific storage account information for this bucket
-     * @param azureInfo - a structure suitable for
+     * @param {object} azureInfo - a structure suitable for
      *   {@link BucketAzureInfo} construction
-     * @return - bucket info instance
+     * @return {BucketInfo} - bucket info instance
      */
-    setAzureInfo(azureInfo: any) {
+    setAzureInfo(azureInfo) {
         this._azureInfo = azureInfo;
         return this;
     }
     /**
     * Check if object lock is enabled.
-    * @return - depending on whether object lock is enabled
+    * @return {boolean} - depending on whether object lock is enabled
     */
     isObjectLockEnabled() {
         return !!this._objectLockEnabled;
     }
     /**
     * Set the value of objectLockEnabled field.
-    * @param enabled - true if object lock enabled else false.
+    * @param {boolean} enabled - true if object lock enabled else false.
-    * @return - bucket info instance
+    * @return {BucketInfo} - bucket info instance
     */
-    setObjectLockEnabled(enabled: boolean) {
+    setObjectLockEnabled(enabled) {
         this._objectLockEnabled = enabled;
         return this;
     }
-
-    /**
-     * Get the value of bucket tags
-     * @return - Array of bucket tags
-     */
-    getTags() {
-        return this._tags;
-    }
-    
-    /**
-     * Set bucket tags
-     * @return - bucket info instance
-     */
-    setTags(tags: Array<BucketTag>) {
-        this._tags = tags;
-        return this;
-    }
-
-    /**
-     * Get the value of bucket capabilities
-     * @return - capabilities of the bucket
-     */
-    getCapabilities() {
-        return this._capabilities;
-    }
-
-    /**
-     * Get a specific bucket capability
-     * 
-     * @param capability? - if provided, will return a specific capacity
-     * @return - capability of the bucket
-     */
-    getCapability(capability: string) : VeeamSOSApi | undefined {
-        if (capability && this._capabilities && this._capabilities[capability]) {
-            return this._capabilities[capability];
-        }
-        return undefined;
-    }
-    
-    /**
-     * Set bucket capabilities
-     * @return - bucket info instance
-     */
-    setCapabilities(capabilities: Capabilities) {
-        this._capabilities = capabilities;
-        return this;
-    }
-
-    /**
-     * Get the bucket quota information
-     * @return quotaMax
-     */
-    getQuota() {
-        return this._quotaMax;
-    }
-    
-    /**
-     * Set bucket quota
-     * @param quota - quota to be set
-     * @return - bucket quota info
-     */
-    setQuota(quota: number) {
-        this._quotaMax = quota || 0;
-        return this;
-    }
 }
+
+module.exports = BucketInfo;

lib/models/BucketPolicy.js

@@ -1,6 +1,7 @@
-import assert from 'assert';
+const assert = require('assert');
-import errors, { ArsenalError } from '../errors';
+
-import { validateResourcePolicy } from '../policy/policyValidator';
+const errors = require('../errors').default;
+const { validateResourcePolicy } = require('../policy/policyValidator');
 
 /**
  * Format of json policy:
@@ -48,22 +49,20 @@ const objectActions = [
     's3:PutObjectTagging',
 ];
 
-export default class BucketPolicy {
+class BucketPolicy {
-    _json: string;
-    _policy: any;
     /**
      * Create a Bucket Policy instance
-     * @param json - the json policy
+     * @param {string} json - the json policy
-     * @return - BucketPolicy instance
+     * @return {object} - BucketPolicy instance
      */
-    constructor(json: string) {
+    constructor(json) {
         this._json = json;
         this._policy = {};
     }
 
     /**
      * Get the bucket policy
-     * @return - the bucket policy or error
+     * @return {object} - the bucket policy or error
      */
     getBucketPolicy() {
         const policy = this._getPolicy();
@@ -72,9 +71,9 @@ export default class BucketPolicy {
 
     /**
      * Get the bucket policy array
-     * @return - contains error if policy validation fails
+     * @return {object} - contains error if policy validation fails
      */
-    _getPolicy(): { error: ArsenalError } | any {
+    _getPolicy() {
         if (!this._json || this._json === '') {
             return { error: errors.MalformedPolicy.customizeDescription(
                 'request json is empty or undefined') };
@@ -102,13 +101,13 @@ export default class BucketPolicy {
 
     /**
      * Validate action and resource are compatible
-     * @return - contains error or empty obj
+     * @return {error} - contains error or empty obj
      */
-    _validateActionResource(): { error?: ArsenalError } {
+    _validateActionResource() {
-        const invalid = this._policy.Statement.every((s: any) => {
+        const invalid = this._policy.Statement.every(s => {
-            const actions: string[] = typeof s.Action === 'string' ?
+            const actions = typeof s.Action === 'string' ?
                 [s.Action] : s.Action;
-            const resources: string[] = typeof s.Resource === 'string' ?
+            const resources = typeof s.Resource === 'string' ?
                 [s.Resource] : s.Resource;
             const objectAction = actions.some(a =>
                 a.includes('Object') || objectActions.includes(a));
@@ -130,12 +129,15 @@ export default class BucketPolicy {
 
     /**
      * Call resource policy schema validation function
-     * @param policy - the bucket policy object to validate
+     * @param {object} policy - the bucket policy object to validate
+     * @return {undefined}
      */
-    static validatePolicy(policy: any) {
+    static validatePolicy(policy) {
         // only the BucketInfo constructor calls this function
         // and BucketInfo will always be passed an object
         const validated = validateResourcePolicy(JSON.stringify(policy));
         assert.deepStrictEqual(validated, { error: null, valid: true });
     }
 }
+
+module.exports = BucketPolicy;

lib/models/LifecycleRule.js

@@ -0,0 +1,146 @@
+const uuid = require('uuid/v4');
+
+/**
+ * @class LifecycleRule
+ *
+ * @classdesc Simple get/set class to build a single Rule
+ */
+class LifecycleRule {
+    constructor(id, status) {
+        // defaults
+        this.id = id || uuid();
+        this.status = status === 'Disabled' ? 'Disabled' : 'Enabled';
+        this.tags = [];
+    }
+
+    build() {
+        const rule = {};
+
+        rule.ID = this.id;
+        rule.Status = this.status;
+
+        if (this.expiration) {
+            rule.Expiration = this.expiration;
+        }
+        if (this.ncvExpiration) {
+            rule.NoncurrentVersionExpiration = this.ncvExpiration;
+        }
+        if (this.abortMPU) {
+            rule.AbortIncompleteMultipartUpload = this.abortMPU;
+        }
+        if (this.transitions) {
+            rule.Transitions = this.transitions;
+        }
+        if (this.ncvTransitions) {
+            rule.NoncurrentVersionTransitions = this.ncvTransitions;
+        }
+
+
+        const filter = {};
+        if ((this.prefix && this.tags.length) || (this.tags.length > 1)) {
+            // And rule
+            const andRule = {};
+
+            if (this.prefix) {
+                andRule.Prefix = this.prefix;
+            }
+            andRule.Tags = this.tags;
+            filter.And = andRule;
+        } else {
+            if (this.prefix) {
+                filter.Prefix = this.prefix;
+            }
+            if (this.tags.length) {
+                filter.Tag = this.tags[0];
+            }
+        }
+
+        if (Object.keys(filter).length > 0) {
+            rule.Filter = filter;
+        } else {
+            rule.Prefix = '';
+        }
+
+        return rule;
+    }
+
+    addID(id) {
+        this.id = id;
+        return this;
+    }
+
+    disable() {
+        this.status = 'Disabled';
+        return this;
+    }
+
+    addPrefix(prefix) {
+        this.prefix = prefix;
+        return this;
+    }
+
+    addTag(key, value) {
+        this.tags.push({
+            Key: key,
+            Value: value,
+        });
+        return this;
+    }
+
+    /**
+    * Expiration
+    * @param {string} prop - Property must be defined in `validProps`
+    * @param {integer|boolean} value - integer for `Date` or `Days`, or
+    *   boolean for `ExpiredObjectDeleteMarker`
+    * @return {undefined}
+    */
+    addExpiration(prop, value) {
+        const validProps = ['Date', 'Days', 'ExpiredObjectDeleteMarker'];
+        if (validProps.indexOf(prop) > -1) {
+            this.expiration = this.expiration || {};
+            if (prop === 'ExpiredObjectDeleteMarker') {
+                this.expiration[prop] = JSON.parse(value);
+            } else {
+                this.expiration[prop] = value;
+            }
+        }
+        return this;
+    }
+
+    /**
+    * NoncurrentVersionExpiration
+    * @param {integer} days - NoncurrentDays
+    * @return {undefined}
+    */
+    addNCVExpiration(days) {
+        this.ncvExpiration = { NoncurrentDays: days };
+        return this;
+    }
+
+    /**
+    * AbortIncompleteMultipartUpload
+    * @param {integer} days - DaysAfterInitiation
+    * @return {undefined}
+    */
+    addAbortMPU(days) {
+        this.abortMPU = { DaysAfterInitiation: days };
+        return this;
+    }
+
+    /**
+     * Transitions
+     * @param {array} transitions - transitions
+     * @return {undefined}
+     */
+    addTransitions(transitions) {
+        this.transitions = transitions;
+        return this;
+    }
+
+    addNCVTransitions(nvcTransitions) {
+        this.ncvTransitions = nvcTransitions;
+        return this;
+    }
+}
+
+module.exports = LifecycleRule;

lib/models/LifecycleRule.ts

@@ -1,190 +0,0 @@
-import uuid from 'uuid/v4';
-
-export type Status = 'Disabled' | 'Enabled';
-export type Tag = { Key: string; Value: string };
-export type Tags = Tag[];
-export type And = { Prefix?: string; Tags: Tags };
-export type Filter = { Prefix?: string; Tag?: Tag } | { And: And };
-export type Expiration = {
-    ExpiredObjectDeleteMarker?: number | boolean;
-    Date?: number | boolean;
-    Days?: number | boolean;
-};
-export type NoncurrentExpiration = {
-    NoncurrentDays: number | null;
-    NewerNoncurrentVersions: number | null;
-};
-
-/**
- * @class LifecycleRule
- *
- * @classdesc Simple get/set class to build a single Rule
- */
-export default class LifecycleRule {
-    id: string;
-    status: Status;
-    tags: Tags;
-    expiration?: Expiration;
-    ncvExpiration?: NoncurrentExpiration;
-    abortMPU?: { DaysAfterInitiation: number };
-    transitions?: any[];
-    ncvTransitions?: any[];
-    prefix?: string;
-
-    constructor(id: string, status: Status) {
-        // defaults
-        this.id = id || uuid();
-        this.status = status === 'Disabled' ? 'Disabled' : 'Enabled';
-        this.tags = [];
-    }
-
-    build() {
-        const rule: {
-            ID: string;
-            Status: Status;
-            Expiration?: Expiration;
-            NoncurrentVersionExpiration?: NoncurrentExpiration;
-            AbortIncompleteMultipartUpload?: { DaysAfterInitiation: number };
-            Transitions?: any[];
-            NoncurrentVersionTransitions?: any[];
-            Filter?: Filter;
-            Prefix?: '';
-        } = { ID: this.id, Status: this.status };
-
-        if (this.expiration) {
-            rule.Expiration = this.expiration;
-        }
-        if (this.ncvExpiration) {
-            rule.NoncurrentVersionExpiration = this.ncvExpiration
-        }
-        if (this.abortMPU) {
-            rule.AbortIncompleteMultipartUpload = this.abortMPU;
-        }
-        if (this.transitions) {
-            rule.Transitions = this.transitions;
-        }
-        if (this.ncvTransitions) {
-            rule.NoncurrentVersionTransitions = this.ncvTransitions;
-        }
-
-        const filter = this.buildFilter();
-
-        if (Object.keys(filter).length > 0) {
-            rule.Filter = filter;
-        } else {
-            rule.Prefix = '';
-        }
-
-        return rule;
-    }
-
-    buildFilter() {
-        if ((this.prefix && this.tags.length) || this.tags.length > 1) {
-            // And rule
-            const And: And = { Tags: this.tags };
-            if (this.prefix) {
-                And.Prefix = this.prefix;
-            }
-            return { And };
-        } else {
-            const filter: Filter = {};
-            if (this.prefix) {
-                filter.Prefix = this.prefix;
-            }
-            if (this.tags.length > 0) {
-                filter.Tag = this.tags[0];
-            }
-            return filter;
-        }
-    }
-
-    addID(id: string) {
-        this.id = id;
-        return this;
-    }
-
-    disable() {
-        this.status = 'Disabled';
-        return this;
-    }
-
-    addPrefix(prefix: string) {
-        this.prefix = prefix;
-        return this;
-    }
-
-    addTag(key: string, value: string) {
-        this.tags.push({
-            Key: key,
-            Value: value,
-        });
-        return this;
-    }
-
-    /**
-     * Expiration
-     * @param prop - Property must be defined in `validProps`
-     * @param value - integer for `Date` or `Days`, or boolean for `ExpiredObjectDeleteMarker`
-     */
-    addExpiration(prop: 'ExpiredObjectDeleteMarker', value: boolean): this;
-    addExpiration(prop: 'Date' | 'Days', value: number): this;
-    addExpiration(prop: string, value: number | boolean) {
-        const validProps = ['Date', 'Days', 'ExpiredObjectDeleteMarker'];
-        if (validProps.includes(prop)) {
-            this.expiration = this.expiration || {};
-            if (prop === 'ExpiredObjectDeleteMarker') {
-                // FIXME
-                // @ts-expect-error
-                this.expiration[prop] = JSON.parse(value);
-            } else {
-                this.expiration[prop] = value;
-            }
-        }
-        return this;
-    }
-
-    /**
-     * NoncurrentVersionExpiration
-     * @param prop - Property must be defined in `validProps`
-     * @param value - integer for `NoncurrentDays` and `NewerNoncurrentVersions` 
-     */
-    addNCVExpiration(prop: 'NoncurrentDays' | 'NewerNoncurrentVersions', value: number): this;
-    addNCVExpiration(prop: string, value: number) {
-        const validProps = ['NoncurrentDays', 'NewerNoncurrentVersions'];
-        if (validProps.includes(prop)) {
-            this.ncvExpiration = this.ncvExpiration || {
-                NoncurrentDays: null,
-                NewerNoncurrentVersions: null,
-            };
-            this.ncvExpiration[prop] = value;
-        }
-        return this;
-    }
-
-    /**
-     * abortincompletemultipartupload
-     * @param days - DaysAfterInitiation
-     */
-    addAbortMPU(days: number) {
-        this.abortMPU = { DaysAfterInitiation: days };
-        return this;
-    }
-
-    /**
-     * Transitions
-     * @param transitions - transitions
-     */
-    addTransitions(transitions: any[]) {
-        this.transitions = transitions;
-        return this;
-    }
-
-    /**
-     * NonCurrentVersionTransitions
-     * @param nvcTransitions - NonCurrentVersionTransitions 
-     */
-    addNCVTransitions(nvcTransitions) {
-        this.ncvTransitions = nvcTransitions;
-        return this;
-    }
-}

lib/models/NotificationConfiguration.js

@@ -1,11 +1,11 @@
-import assert from 'assert';
+const assert = require('assert');
-import UUID from 'uuid';
+const UUID = require('uuid');
 
-import {
+const {
     supportedNotificationEvents,
     notificationArnPrefix,
-} from '../constants';
+} = require('../constants');
-import errors, { ArsenalError } from '../errors';
+const errors = require('../errors').default;
 
 /**
  * Format of xml request:
@@ -51,27 +51,21 @@ import errors, { ArsenalError } from '../errors';
   * }
   */
 
-export default class NotificationConfiguration {
+class NotificationConfiguration {
-    _parsedXml: any;
-    _config: {
-        error?: ArsenalError;
-        queueConfig?: any[];
-    };
-    _ids: Set<string>;
     /**
      * Create a Notification Configuration instance
-     * @param xml - parsed configuration xml
+     * @param {string} xml - parsed configuration xml
-     * @return - NotificationConfiguration instance
+     * @return {object} - NotificationConfiguration instance
      */
-    constructor(xml: any) {
+    constructor(xml) {
         this._parsedXml = xml;
         this._config = {};
-        this._ids = new Set();
+        this._ids = new Set([]);
     }
 
     /**
      * Get notification configuration
-     * @return - contains error if parsing failed
+     * @return {object} - contains error if parsing failed
      */
     getValidatedNotificationConfiguration() {
         const validationError = this._parseNotificationConfig();
@@ -83,7 +77,7 @@ export default class NotificationConfiguration {
 
     /**
      * Check that notification configuration is valid
-     * @return - error if parsing failed, else undefined
+     * @return {error | null} - error if parsing failed, else undefined
      */
     _parseNotificationConfig() {
         if (!this._parsedXml || this._parsedXml === '') {
@@ -101,19 +95,19 @@ export default class NotificationConfiguration {
             return null;
         }
         this._config.queueConfig = [];
-        let parseError: ArsenalError | undefined;
+        let parseError;
         for (let i = 0; i < queueConfig.length; i++) {
             const eventObj = this._parseEvents(queueConfig[i].Event);
             const filterObj = this._parseFilter(queueConfig[i].Filter);
             const idObj = this._parseId(queueConfig[i].Id);
             const arnObj = this._parseArn(queueConfig[i].Queue);
 
-            if ('error' in eventObj) {
+            if (eventObj.error) {
                 parseError = eventObj.error;
                 this._config = {};
                 break;
             }
-            if ('error' in filterObj) {
+            if (filterObj.error) {
                 parseError = filterObj.error;
                 this._config = {};
                 break;
@@ -135,43 +129,42 @@ export default class NotificationConfiguration {
                 filterRules: filterObj.filterRules,
             });
         }
-        return parseError ?? null;
+        return parseError;
     }
 
     /**
      * Check that events array is valid
-     * @param events - event array
+     * @param {array} events - event array
-     * @return - contains error if parsing failed or events array
+     * @return {object} - contains error if parsing failed or events array
      */
-    _parseEvents(events: any[]) {
+    _parseEvents(events) {
-        if (!events || !events[0]) {
+        const eventsObj = {
-            const msg = 'each queue configuration must contain an event';
+            events: [],
-            const error = errors.MalformedXML.customizeDescription(msg);
-            return { error };
-        }
-        const eventsObj: { error?: ArsenalError, events: any[] } = {
-            events: [] as any[],
         };
-        for (const e of events) {
+        if (!events || !events[0]) {
+            eventsObj.error = errors.MalformedXML.customizeDescription(
+                'each queue configuration must contain an event');
+            return eventsObj;
+        }
+        events.forEach(e => {
             if (!supportedNotificationEvents.has(e)) {
-                const msg = 'event array contains invalid or unsupported event';
+                eventsObj.error = errors.MalformedXML.customizeDescription(
-                const error = errors.MalformedXML.customizeDescription(msg);
+                    'event array contains invalid or unsupported event');
-                return { error };
             } else {
                 eventsObj.events.push(e);
             }
-        }
+        });
         return eventsObj;
     }
 
     /**
      * Check that filter array is valid
-     * @param filter - filter array
+     * @param {array} filter - filter array
-     * @return - contains error if parsing failed or filter array
+     * @return {object} - contains error if parsing failed or filter array
      */
-    _parseFilter(filter: any[]) {
+    _parseFilter(filter) {
         if (!filter || !filter[0]) {
-            return { filterRules: undefined };
+            return {};
         }
         if (!filter[0].S3Key || !filter[0].S3Key[0]) {
             return { error: errors.MalformedXML.customizeDescription(
@@ -182,7 +175,7 @@ export default class NotificationConfiguration {
             return { error: errors.MalformedXML.customizeDescription(
                 'if included, queue configuration filter must contain a rule') };
         }
-        const filterObj: { filterRules: { name: string; value: string }[] } = {
+        const filterObj = {
             filterRules: [],
         };
         const ruleArray = filterRules.FilterRule;
@@ -208,15 +201,15 @@ export default class NotificationConfiguration {
 
     /**
      * Check that id string is valid
-     * @param id - id string (optional)
+     * @param {string} id - id string (optional)
-     * @return - contains error if parsing failed or id
+     * @return {object} - contains error if parsing failed or id
      */
-    _parseId(id: string) {
+    _parseId(id) {
         if (id && id[0].length > 255) {
             return { error: errors.InvalidArgument.customizeDescription(
                 'queue configuration ID is greater than 255 characters long') };
         }
-        let validId: string;
+        let validId;
         if (!id || !id[0]) {
             // id is optional property, so create one if not provided or is ''
             // We generate 48-character alphanumeric, unique id for rule
@@ -235,10 +228,10 @@ export default class NotificationConfiguration {
 
     /**
      * Check that arn string is valid
-     * @param arn - queue arn
+     * @param {string} arn - queue arn
-     * @return - contains error if parsing failed or queue arn
+     * @return {object} - contains error if parsing failed or queue arn
      */
-    _parseArn(arn: string) {
+    _parseArn(arn) {
         if (!arn || !arn[0]) {
             return { error: errors.MalformedXML.customizeDescription(
                 'each queue configuration must contain a queue arn'),
@@ -256,21 +249,11 @@ export default class NotificationConfiguration {
 
     /**
      * Get XML representation of notification configuration object
-     * @param config - notification configuration object
+     * @param {object} config - notification configuration object
-     * @return - XML representation of config
+     * @return {string} - XML representation of config
      */
-    static getConfigXML(config: {
+    static getConfigXML(config) {
-        queueConfig: {
+        const xmlArray = [];
-            id: string;
-            events: string[];
-            queueArn: string;
-            filterRules: {
-                name: string;
-                value: string;
-            }[];
-        }[];
-    }) {
-        const xmlArray: string[] = [];
         if (config && config.queueConfig) {
             config.queueConfig.forEach(c => {
                 xmlArray.push('<QueueConfiguration>');
@@ -301,19 +284,20 @@ export default class NotificationConfiguration {
     /**
      * Validate the bucket metadata notification configuration structure and
      * value types
-     * @param config - The notificationconfiguration to validate
+     * @param {object} config - The notificationconfiguration to validate
+     * @return {undefined}
      */
-    static validateConfig(config: any) {
+    static validateConfig(config) {
         assert.strictEqual(typeof config, 'object');
         if (!config.queueConfig) {
             return;
         }
-        config.queueConfig.forEach((q: any) => {
+        config.queueConfig.forEach(q => {
             const { events, queueArn, filterRules, id } = q;
-            events.forEach((e: any) => assert.strictEqual(typeof e, 'string'));
+            events.forEach(e => assert.strictEqual(typeof e, 'string'));
             assert.strictEqual(typeof queueArn, 'string');
             if (filterRules) {
-                filterRules.forEach((f: any) => {
+                filterRules.forEach(f => {
                     assert.strictEqual(typeof f.name, 'string');
                     assert.strictEqual(typeof f.value, 'string');
                 });
@@ -323,3 +307,5 @@ export default class NotificationConfiguration {
         return;
     }
 }
+
+module.exports = NotificationConfiguration;

lib/models/ObjectLockConfiguration.js

@@ -1,12 +1,6 @@
-import assert from 'assert';
+const assert = require('assert');
-import errors, { ArsenalError } from '../errors';
 
-export type Config = any;
+const errors = require('../errors').default;
-export type LockMode = 'GOVERNANCE' | 'COMPLIANCE';
-export type DefaultRetention = { Days: number } | { Years: number };
-export type ParsedRetention =
-    | { error: ArsenalError }
-    | { timeType: 'days' | 'years'; timeValue: number };
 
 /**
  * Format of xml request:
@@ -33,23 +27,20 @@ export type ParsedRetention =
   *     }
   * }
   */
-export default class ObjectLockConfiguration {
+class ObjectLockConfiguration {
-    _parsedXml: any;
-    _config: Config;
-
     /**
      * Create an Object Lock Configuration instance
-     * @param xml - the parsed configuration xml
+     * @param {string} xml - the parsed configuration xml
-     * @return - ObjectLockConfiguration instance
+     * @return {object} - ObjectLockConfiguration instance
      */
-    constructor(xml: any) {
+    constructor(xml) {
         this._parsedXml = xml;
         this._config = {};
     }
 
     /**
      * Get the object lock configuration
-     * @return - contains error if parsing failed
+     * @return {object} - contains error if parsing failed
      */
     getValidatedObjectLockConfiguration() {
         const validConfig = this._parseObjectLockConfig();
@@ -61,128 +52,131 @@ export default class ObjectLockConfiguration {
 
     /**
      * Check that mode is valid
-     * @param mode - array containing mode value
+     * @param {array} mode - array containing mode value
-     * @return - contains error if parsing failed
+     * @return {object} - contains error if parsing failed
      */
-    _parseMode(mode: LockMode[]): { error: ArsenalError } | { mode: LockMode } {
+    _parseMode(mode) {
+        const validMode = {};
         const expectedModes = ['GOVERNANCE', 'COMPLIANCE'];
         if (!mode || !mode[0]) {
-            const msg = 'request xml does not contain Mode';
+            validMode.error = errors.MalformedXML.customizeDescription(
-            const error = errors.MalformedXML.customizeDescription(msg);
+                'request xml does not contain Mode');
-            return { error };
+            return validMode;
         }
         if (mode.length > 1) {
-            const msg = 'request xml contains more than one Mode';
+            validMode.error = errors.MalformedXML.customizeDescription(
-            const error = errors.MalformedXML.customizeDescription(msg);
+                'request xml contains more than one Mode');
-            return { error };
+            return validMode;
         }
         if (!expectedModes.includes(mode[0])) {
-            const msg = 'Mode request xml must be one of "GOVERNANCE", "COMPLIANCE"';
+            validMode.error = errors.MalformedXML.customizeDescription(
-            const error = errors.MalformedXML.customizeDescription(msg);
+                'Mode request xml must be one of "GOVERNANCE", "COMPLIANCE"');
-            return { error };
+            return validMode;
         }
-        return { mode: mode[0] };
+        validMode.mode = mode[0];
+        return validMode;
     }
 
     /**
      * Check that time limit is valid
-     * @param dr - DefaultRetention object containing days or years
+     * @param {object} dr - DefaultRetention object containing days or years
-     * @return - contains error if parsing failed
+     * @return {object} - contains error if parsing failed
      */
-    _parseTime(dr: DefaultRetention): ParsedRetention {
+    _parseTime(dr) {
-        if ('Days' in dr && 'Years' in dr) {
+        const validTime = {};
-            const msg = 'request xml contains both Days and Years';
+        if (dr.Days && dr.Years) {
-            const error = errors.MalformedXML.customizeDescription(msg);
+            validTime.error = errors.MalformedXML.customizeDescription(
-            return { error };
+                'request xml contains both Days and Years');
+            return validTime;
         }
-        const timeType = 'Days' in dr ? 'Days' : 'Years';
+        const timeType = dr.Days ? 'Days' : 'Years';
         if (!dr[timeType] || !dr[timeType][0]) {
-            const msg = 'request xml does not contain Days or Years';
+            validTime.error = errors.MalformedXML.customizeDescription(
-            const error = errors.MalformedXML.customizeDescription(msg);
+                'request xml does not contain Days or Years');
-            return { error };
+            return validTime;
         }
         if (dr[timeType].length > 1) {
-            const msg = 'request xml contains more than one retention period';
+            validTime.error = errors.MalformedXML.customizeDescription(
-            const error = errors.MalformedXML.customizeDescription(msg);
+                'request xml contains more than one retention period');
-            return { error };
+            return validTime;
         }
         const timeValue = Number.parseInt(dr[timeType][0], 10);
         if (Number.isNaN(timeValue)) {
-            const msg = 'request xml does not contain valid retention period';
+            validTime.error = errors.MalformedXML.customizeDescription(
-            const error = errors.MalformedXML.customizeDescription(msg);
+                'request xml does not contain valid retention period');
-            return { error };
+            return validTime;
         }
         if (timeValue < 1) {
-            const msg = 'retention period must be a positive integer';
+            validTime.error = errors.InvalidArgument.customizeDescription(
-            const error = errors.InvalidArgument.customizeDescription(msg);
+                'retention period must be a positive integer');
-            return { error };
+            return validTime;
         }
         if ((timeType === 'Days' && timeValue > 36500) ||
         (timeType === 'Years' && timeValue > 100)) {
-            const msg = 'retention period is too large';
+            validTime.error = errors.InvalidArgument.customizeDescription(
-            const error = errors.InvalidArgument.customizeDescription(msg);
+                'retention period is too large');
-            return { error };
+            return validTime;
         }
-        return {
+        validTime.timeType = timeType.toLowerCase();
-            timeType: timeType.toLowerCase() as 'days' | 'years',
+        validTime.timeValue = timeValue;
-            timeValue: timeValue,
+        return validTime;
-        };
     }
 
     /**
      * Check that object lock configuration is valid
-     * @return - contains error if parsing failed
+     * @return {object} - contains error if parsing failed
      */
     _parseObjectLockConfig() {
-        const validConfig: { error?: ArsenalError } = {};
+        const validConfig = {};
         if (!this._parsedXml || this._parsedXml === '') {
-            const msg = 'request xml is undefined or empty';
+            validConfig.error = errors.MalformedXML.customizeDescription(
-            const error = errors.MalformedXML.customizeDescription(msg);
+                'request xml is undefined or empty');
-            return { error };
+            return validConfig;
         }
         const objectLockConfig = this._parsedXml.ObjectLockConfiguration;
         if (!objectLockConfig || objectLockConfig === '') {
-            const msg = 'request xml does not include ObjectLockConfiguration';
+            validConfig.error = errors.MalformedXML.customizeDescription(
-            const error = errors.MalformedXML.customizeDescription(msg);
+                'request xml does not include ObjectLockConfiguration');
-            return { error };
+            return validConfig;
         }
         const objectLockEnabled = objectLockConfig.ObjectLockEnabled;
         if (!objectLockEnabled || objectLockEnabled[0] !== 'Enabled') {
-            const msg = 'request xml does not include valid ObjectLockEnabled';
+            validConfig.error = errors.MalformedXML.customizeDescription(
-            const error = errors.MalformedXML.customizeDescription(msg);
+                'request xml does not include valid ObjectLockEnabled');
-            return { error };
+            return validConfig;
         }
         const ruleArray = objectLockConfig.Rule;
         if (ruleArray) {
             if (ruleArray.length > 1) {
-                const msg = 'request xml contains more than one rule';
+                validConfig.error = errors.MalformedXML.customizeDescription(
-                const error = errors.MalformedXML.customizeDescription(msg);
+                    'request xml contains more than one rule');
-                return { error };
+                return validConfig;
             }
             const drArray = ruleArray[0].DefaultRetention;
             if (!drArray || !drArray[0] || drArray[0] === '') {
-                const msg = 'Rule request xml does not contain DefaultRetention';
+                validConfig.error = errors.MalformedXML.customizeDescription(
-                const error = errors.MalformedXML.customizeDescription(msg);
+                    'Rule request xml does not contain DefaultRetention');
-                return { error };
+                return validConfig;
             }
             if (!drArray[0].Mode || (!drArray[0].Days && !drArray[0].Years)) {
-                const msg =
+                validConfig.error = errors.MalformedXML.customizeDescription(
                     'DefaultRetention request xml does not contain Mode or ' +
-                    'retention period (Days or Years)';
+                    'retention period (Days or Years)');
-                const error = errors.MalformedXML.customizeDescription(msg);
+                return validConfig;
-                return { error };
             }
             const validMode = this._parseMode(drArray[0].Mode);
-            if ('error' in validMode) {
+            if (validMode.error) {
-                return validMode;
+                validConfig.error = validMode.error;
+                return validConfig;
             }
             const validTime = this._parseTime(drArray[0]);
-            if ('error' in validTime) {
+            if (validTime.error) {
-                return validTime;
+                validConfig.error = validTime.error;
+                return validConfig;
             }
             this._config.rule = {};
             this._config.rule.mode = validMode.mode;
-            this._config.rule[validTime.timeType!] = validTime.timeValue;
+            this._config.rule[validTime.timeType] = validTime.timeValue;
         }
         return validConfig;
     }
@@ -190,9 +184,10 @@ export default class ObjectLockConfiguration {
     /**
      * Validate the bucket metadata object lock configuration structure and
      * value types
-     * @param config - The object lock configuration to validate
+     * @param {object} config - The object lock configuration to validate
+     * @return {undefined}
      */
-    static validateConfig(config: any) {
+    static validateConfig(config) {
         assert.strictEqual(typeof config, 'object');
         const rule = config.rule;
         if (rule) {
@@ -208,10 +203,10 @@ export default class ObjectLockConfiguration {
 
     /**
      * Get the XML representation of the configuration object
-     * @param config - The bucket object lock configuration
+     * @param {object} config - The bucket object lock configuration
-     * @return - The XML representation of the configuration
+     * @return {string} - The XML representation of the configuration
      */
-    static getConfigXML(config: any) {
+    static getConfigXML(config) {
         // object lock is enabled on the bucket but object lock configuration
         // not set
         if (config.rule === undefined) {
@@ -239,3 +234,5 @@ export default class ObjectLockConfiguration {
             '</ObjectLockConfiguration>';
     }
 }
+
+module.exports = ObjectLockConfiguration;

lib/models/ObjectMDAmzRestore.js

@@ -8,28 +8,25 @@
  *
  * @class
  */
-export default class ObjectMDAmzRestore {
+class ObjectMDAmzRestore {
-    'expiry-date': Date | string;
-    'ongoing-request': boolean;
-
     /**
      *
      * @constructor
-     * @param ongoingRequest ongoing-request
+     * @param {boolean} ongoingRequest ongoing-request
-     * @param [expiryDate] expiry-date
+     * @param {Date} [expiryDate] expiry-date
-     * @throws case of invalid parameter
+     * @throws {Error} case of invalid parameter
      */
-    constructor(ongoingRequest: boolean, expiryDate?: Date | string) {
+    constructor(ongoingRequest, expiryDate) {
         this.setOngoingRequest(ongoingRequest);
         this.setExpiryDate(expiryDate);
     }
 
     /**
      *
-     * @param data archiveInfo
+     * @param {Object} data archiveInfo
-     * @returns true if the provided object is valid
+     * @returns {boolean} true if the provided object is valid
      */
-    static isValid(data: { 'ongoing-request': boolean; 'expiry-date': Date | string }) {
+    static isValid(data) {
         try {
             // eslint-disable-next-line no-new
             new ObjectMDAmzRestore(data['ongoing-request'], data['expiry-date']);
@@ -41,7 +38,7 @@ export default class ObjectMDAmzRestore {
 
     /**
      *
-     * @returns ongoing-request
+     * @returns {boolean} ongoing-request
      */
     getOngoingRequest() {
         return this['ongoing-request'];
@@ -49,10 +46,11 @@ export default class ObjectMDAmzRestore {
 
     /**
      *
-     * @param value ongoing-request
+     * @param {boolean} value ongoing-request
-     * @throws case of invalid parameter
+     * @returns {void}
+     * @throws {Error} case of invalid parameter
      */
-    setOngoingRequest(value?: boolean) {
+    setOngoingRequest(value) {
         if (value === undefined) {
             throw new Error('ongoing-request is required.');
         } else if (typeof value !== 'boolean') {
@@ -63,7 +61,7 @@ export default class ObjectMDAmzRestore {
 
     /**
      *
-     * @returns expiry-date
+     * @returns {Date} expiry-date
      */
     getExpiryDate() {
         return this['expiry-date'];
@@ -71,10 +69,11 @@ export default class ObjectMDAmzRestore {
 
     /**
      *
-     * @param value expiry-date
+     * @param {Date} value expiry-date
-     * @throws case of invalid parameter
+     * @returns {void}
+     * @throws {Error} case of invalid parameter
      */
-    setExpiryDate(value?: Date | string) {
+    setExpiryDate(value) {
         if (value) {
             const checkWith = (new Date(value)).getTime();
             if (Number.isNaN(Number(checkWith))) {
@@ -86,9 +85,11 @@ export default class ObjectMDAmzRestore {
 
     /**
      *
-     * @returns itself
+     * @returns {ObjectMDAmzRestore} itself
      */
     getValue() {
         return this;
     }
 }
+
+module.exports = ObjectMDAmzRestore;

lib/models/ObjectMDArchive.js

@@ -3,53 +3,37 @@
  *
  * @class
  */
-export default class ObjectMDArchive {
+class ObjectMDArchive {
-    archiveInfo: any;
-    // @ts-ignore
-    restoreRequestedAt: Date | string;
-    // @ts-ignore
-    restoreRequestedDays: number;
-    // @ts-ignore
-    restoreCompletedAt: Date | string;
-    // @ts-ignore
-    restoreWillExpireAt: Date | string;
-
     /**
      *
      * @constructor
-     * @param archiveInfo contains the archive info set by the TLP and returned by the TLP jobs
+     * @param {Object} archiveInfo contains the archive info set by the TLP and returned by the TLP jobs
-     * @param [restoreRequestedAt] set at the time restore request is made by the client
+     * @param {Date} [restoreRequestedAt] set at the time restore request is made by the client
-     * @param [restoreRequestedDays] set at the time restore request is made by the client
+     * @param {Number} [restoreRequestedDays] set at the time restore request is made by the client
-     * @param [restoreCompletedAt] set at the time of successful restore
+     * @param {Date} [restoreCompletedAt] set at the time of successful restore
-     * @param [restoreWillExpireAt] computed and stored at the time of restore
+     * @param {Date} [restoreWillExpireAt] computed and stored at the time of restore
-     * @throws case of invalid parameter
+     * @throws {Error} case of invalid parameter
      */
     constructor(
-        archiveInfo: any,
+        archiveInfo,
-        restoreRequestedAt?: Date | string,
+        restoreRequestedAt,
-        restoreRequestedDays?: number,
+        restoreRequestedDays,
-        restoreCompletedAt?: Date | string,
+        restoreCompletedAt,
-        restoreWillExpireAt?: Date | string,
+        restoreWillExpireAt,
     ) {
         this.setArchiveInfo(archiveInfo);
-        this.setRestoreRequestedAt(restoreRequestedAt!);
+        this.setRestoreRequestedAt(restoreRequestedAt);
-        this.setRestoreRequestedDays(restoreRequestedDays!);
+        this.setRestoreRequestedDays(restoreRequestedDays);
-        this.setRestoreCompletedAt(restoreCompletedAt!);
+        this.setRestoreCompletedAt(restoreCompletedAt);
-        this.setRestoreWillExpireAt(restoreWillExpireAt!);
+        this.setRestoreWillExpireAt(restoreWillExpireAt);
     }
 
     /**
      *
-     * @param data archiveInfo
+     * @param {Object} data archiveInfo
-     * @returns true if the provided object is valid
+     * @returns {boolean} true if the provided object is valid
      */
-    static isValid(data: {
+    static isValid(data) {
-        archiveInfo: any;
-        restoreRequestedAt?: Date;
-        restoreRequestedDays?: number;
-        restoreCompletedAt?: Date;
-        restoreWillExpireAt?: Date;
-    }) {
         try {
             // eslint-disable-next-line no-new
             new ObjectMDArchive(
@@ -67,17 +51,18 @@ export default class ObjectMDArchive {
 
     /**
      *
-     * @returns archiveInfo
+     * @returns {Object} archiveInfo
      */
     getArchiveInfo() {
         return this.archiveInfo;
     }
 
     /**
-     * @param value archiveInfo
+     * @param {Object} value archiveInfo
-     * @throws case of invalid parameter
+     * @returns {void}
+     * @throws {Error} case of invalid parameter
      */
-    setArchiveInfo(value: any) {
+    setArchiveInfo(value) {
         if (!value) {
             throw new Error('archiveInfo is required.');
         } else if (typeof value !== 'object') {
@@ -88,16 +73,17 @@ export default class ObjectMDArchive {
 
     /**
      *
-     * @returns restoreRequestedAt
+     * @returns {Date} restoreRequestedAt
      */
     getRestoreRequestedAt() {
         return this.restoreRequestedAt;
     }
     /**
-     * @param value restoreRequestedAt
+     * @param {Object} value restoreRequestedAt
-     * @throws case of invalid parameter
+     * @returns {void}
+     * @throws {Error} case of invalid parameter
      */
-    setRestoreRequestedAt(value: Date | string) {
+    setRestoreRequestedAt(value) {
         if (value) {
             const checkWith = (new Date(value)).getTime();
             if (Number.isNaN(Number(checkWith))) {
@@ -109,16 +95,17 @@ export default class ObjectMDArchive {
 
     /**
      *
-     * @returns restoreRequestedDays
+     * @returns {Number} restoreRequestedDays
      */
     getRestoreRequestedDays() {
         return this.restoreRequestedDays;
     }
     /**
-     * @param value restoreRequestedDays
+     * @param {Number} value restoreRequestedDays
-     * @throws case of invalid parameter
+     * @returns {void}
+     * @throws {Error} case of invalid parameter
      */
-    setRestoreRequestedDays(value: number) {
+    setRestoreRequestedDays(value) {
         if (value) {
             if (isNaN(value)) {
                 throw new Error('restoreRequestedDays must be type of Number.');
@@ -129,16 +116,17 @@ export default class ObjectMDArchive {
 
     /**
      *
-     * @returns restoreCompletedAt
+     * @returns {Date} restoreCompletedAt
      */
     getRestoreCompletedAt() {
         return this.restoreCompletedAt;
     }
     /**
-     * @param value restoreCompletedAt
+     * @param {Date} value restoreCompletedAt
-     * @throws case of invalid parameter
+     * @returns {void}
+     * @throws {Error} case of invalid parameter
      */
-    setRestoreCompletedAt(value: Date | string) {
+    setRestoreCompletedAt(value) {
         if (value) {
             if (!this.restoreRequestedAt || !this.restoreRequestedDays) {
                 throw new Error('restoreCompletedAt must be set after restoreRequestedAt and restoreRequestedDays.');
@@ -152,16 +140,17 @@ export default class ObjectMDArchive {
     }
     /**
      *
-     * @returns restoreWillExpireAt
+     * @returns {Date} restoreWillExpireAt
      */
     getRestoreWillExpireAt() {
         return this.restoreWillExpireAt;
     }
     /**
-     * @param value restoreWillExpireAt
+     * @param {Date|string} value restoreWillExpireAt
-     * @throws case of invalid parameter
+     * @returns {void}
+     * @throws {Error} case of invalid parameter
      */
-    setRestoreWillExpireAt(value: Date | string) {
+    setRestoreWillExpireAt(value) {
         if (value) {
             if (!this.restoreRequestedAt || !this.restoreRequestedDays) {
                 throw new Error('restoreWillExpireAt must be set after restoreRequestedAt and restoreRequestedDays.');
@@ -176,9 +165,11 @@ export default class ObjectMDArchive {
 
     /**
      *
-     * @returns itself
+     * @returns {ObjectMDArchive} itself
      */
     getValue() {
         return this;
     }
 }
+
+module.exports = ObjectMDArchive;

lib/models/ObjectMDAzureInfo.js

@@ -2,61 +2,33 @@
  * Helper class to ease access to the Azure specific information for
  * Blob and Container objects.
  */
-export default class ObjectMDAzureInfo {
+class ObjectMDAzureInfo {
-    _data: {
-        containerPublicAccess: string;
-        containerStoredAccessPolicies: any[];
-        containerImmutabilityPolicy: any;
-        containerLegalHoldStatus: boolean;
-        containerDeletionInProgress: boolean;
-        blobType: string;
-        blobContentMD5: string;
-        blobIssuedETag: string;
-        blobCopyInfo: any;
-        blobSequenceNumber: number;
-        blobAccessTierChangeTime: Date;
-        blobUncommitted: boolean;
-    };
-
     /**
      * @constructor
-     * @param obj - Raw structure for the Azure info on Blob/Container
+     * @param {object} obj - Raw structure for the Azure info on Blob/Container
-     * @param obj.containerPublicAccess - Public access authorization
+     * @param {string} obj.containerPublicAccess - Public access authorization
      *   type
-     * @param obj.containerStoredAccessPolicies - Access policies
+     * @param {object[]} obj.containerStoredAccessPolicies - Access policies
      *   for Shared Access Signature bearer
-     * @param obj.containerImmutabilityPolicy - data immutability
+     * @param {object} obj.containerImmutabilityPolicy - data immutability
      *   policy for this container
-     * @param obj.containerLegalHoldStatus - legal hold status for
+     * @param {boolean} obj.containerLegalHoldStatus - legal hold status for
      *   this container
-     * @param obj.containerDeletionInProgress - deletion in progress
+     * @param {boolean} obj.containerDeletionInProgress - deletion in progress
      *   indicator for this container
-     * @param obj.blobType - defines the type of blob for this object
+     * @param {string} obj.blobType - defines the type of blob for this object
-     * @param obj.blobContentMD5 - whole object MD5 sum set by the
+     * @param {string} obj.blobContentMD5 - whole object MD5 sum set by the
      *   client through the Azure API
-     * @param obj.blobIssuedETag - backup of the issued ETag on MD only
+     * @param {string} obj.blobIssuedETag - backup of the issued ETag on MD only
      *   operations like Set Blob Properties and Set Blob Metadata
-     * @param obj.blobCopyInfo - information pertaining to past and
+     * @param {object} obj.blobCopyInfo - information pertaining to past and
      *   pending copy operation targeting this object
-     * @param obj.blobSequenceNumber - sequence number for a PageBlob
+     * @param {number} obj.blobSequenceNumber - sequence number for a PageBlob
-     * @param obj.blobAccessTierChangeTime - date of change of tier
+     * @param {Date} obj.blobAccessTierChangeTime - date of change of tier
-     * @param obj.blobUncommitted - A block has been put for a
+     * @param {boolean} obj.blobUncommitted - A block has been put for a
      *   nonexistent blob which is about to be created
      */
-    constructor(obj: {
+    constructor(obj) {
-        containerPublicAccess: string;
-        containerStoredAccessPolicies: any[];
-        containerImmutabilityPolicy: any;
-        containerLegalHoldStatus: boolean;
-        containerDeletionInProgress: boolean;
-        blobType: string;
-        blobContentMD5: string;
-        blobIssuedETag: string;
-        blobCopyInfo: any;
-        blobSequenceNumber: number;
-        blobAccessTierChangeTime: Date;
-        blobUncommitted: boolean;
-    }) {
         this._data = {
             containerPublicAccess: obj.containerPublicAccess,
             containerStoredAccessPolicies: obj.containerStoredAccessPolicies,
@@ -77,7 +49,7 @@ export default class ObjectMDAzureInfo {
         return this._data.containerPublicAccess;
     }
 
-    setContainerPublicAccess(containerPublicAccess: string) {
+    setContainerPublicAccess(containerPublicAccess) {
         this._data.containerPublicAccess = containerPublicAccess;
         return this;
     }
@@ -86,7 +58,7 @@ export default class ObjectMDAzureInfo {
         return this._data.containerStoredAccessPolicies;
     }
 
-    setContainerStoredAccessPolicies(containerStoredAccessPolicies: any[]) {
+    setContainerStoredAccessPolicies(containerStoredAccessPolicies) {
         this._data.containerStoredAccessPolicies =
             containerStoredAccessPolicies;
         return this;
@@ -96,7 +68,7 @@ export default class ObjectMDAzureInfo {
         return this._data.containerImmutabilityPolicy;
     }
 
-    setContainerImmutabilityPolicy(containerImmutabilityPolicy: any) {
+    setContainerImmutabilityPolicy(containerImmutabilityPolicy) {
         this._data.containerImmutabilityPolicy = containerImmutabilityPolicy;
         return this;
     }
@@ -105,7 +77,7 @@ export default class ObjectMDAzureInfo {
         return this._data.containerLegalHoldStatus;
     }
 
-    setContainerLegalHoldStatus(containerLegalHoldStatus: boolean) {
+    setContainerLegalHoldStatus(containerLegalHoldStatus) {
         this._data.containerLegalHoldStatus = containerLegalHoldStatus;
         return this;
     }
@@ -114,7 +86,7 @@ export default class ObjectMDAzureInfo {
         return this._data.containerDeletionInProgress;
     }
 
-    setContainerDeletionInProgress(containerDeletionInProgress: boolean) {
+    setContainerDeletionInProgress(containerDeletionInProgress) {
         this._data.containerDeletionInProgress = containerDeletionInProgress;
         return this;
     }
@@ -123,7 +95,7 @@ export default class ObjectMDAzureInfo {
         return this._data.blobType;
     }
 
-    setBlobType(blobType: string) {
+    setBlobType(blobType) {
         this._data.blobType = blobType;
         return this;
     }
@@ -132,7 +104,7 @@ export default class ObjectMDAzureInfo {
         return this._data.blobContentMD5;
     }
 
-    setBlobContentMD5(blobContentMD5: string) {
+    setBlobContentMD5(blobContentMD5) {
         this._data.blobContentMD5 = blobContentMD5;
         return this;
     }
@@ -141,7 +113,7 @@ export default class ObjectMDAzureInfo {
         return this._data.blobIssuedETag;
     }
 
-    setBlobIssuedETag(blobIssuedETag: string) {
+    setBlobIssuedETag(blobIssuedETag) {
         this._data.blobIssuedETag = blobIssuedETag;
         return this;
     }
@@ -150,7 +122,7 @@ export default class ObjectMDAzureInfo {
         return this._data.blobCopyInfo;
     }
 
-    setBlobCopyInfo(blobCopyInfo: any) {
+    setBlobCopyInfo(blobCopyInfo) {
         this._data.blobCopyInfo = blobCopyInfo;
         return this;
     }
@@ -159,7 +131,7 @@ export default class ObjectMDAzureInfo {
         return this._data.blobSequenceNumber;
     }
 
-    setBlobSequenceNumber(blobSequenceNumber: number) {
+    setBlobSequenceNumber(blobSequenceNumber) {
         this._data.blobSequenceNumber = blobSequenceNumber;
         return this;
     }
@@ -168,7 +140,7 @@ export default class ObjectMDAzureInfo {
         return this._data.blobAccessTierChangeTime;
     }
 
-    setBlobAccessTierChangeTime(blobAccessTierChangeTime: Date) {
+    setBlobAccessTierChangeTime(blobAccessTierChangeTime) {
         this._data.blobAccessTierChangeTime = blobAccessTierChangeTime;
         return this;
     }
@@ -177,7 +149,7 @@ export default class ObjectMDAzureInfo {
         return this._data.blobUncommitted;
     }
 
-    setBlobUncommitted(blobUncommitted: boolean) {
+    setBlobUncommitted(blobUncommitted) {
         this._data.blobUncommitted = blobUncommitted;
         return this;
     }
@@ -186,3 +158,5 @@ export default class ObjectMDAzureInfo {
         return this._data;
     }
 }
+
+module.exports = ObjectMDAzureInfo;

lib/models/ObjectMDLocation.js

@@ -1,49 +1,28 @@
-export type Ciphered = { cryptoScheme: number; cipheredDataKey: string };
-export type BaseLocation = { key: string; dataStoreName: string };
-export type Location = BaseLocation & {
-    start: number;
-    size: number;
-    dataStoreETag: string;
-    dataStoreVersionId: string;
-    blockId?: string;
-};
-export type ObjectMDLocationData = {
-    key: string;
-    start: number;
-    size: number;
-    dataStoreName: string;
-    dataStoreETag: string;
-    dataStoreVersionId: string;
-    blockId?: string;
-    cryptoScheme?: number;
-    cipheredDataKey?: string;
-};
 /**
  * Helper class to ease access to a single data location in metadata
  * 'location' array
  */
-export default class ObjectMDLocation {
+class ObjectMDLocation {
-    _data: ObjectMDLocationData;
     /**
      * @constructor
-     * @param locationObj - single data location info
+     * @param {object} locationObj - single data location info
-     * @param locationObj.key - data backend key
+     * @param {string} locationObj.key - data backend key
-     * @param locationObj.start - index of first data byte of
+     * @param {number} locationObj.start - index of first data byte of
      *   this part in the full object
-     * @param locationObj.size - byte length of data part
+     * @param {number} locationObj.size - byte length of data part
-     * @param locationObj.dataStoreName - type of data store
+     * @param {string} locationObj.dataStoreName - type of data store
-     * @param locationObj.dataStoreETag - internal ETag of
+     * @param {string} locationObj.dataStoreETag - internal ETag of
      *   data part
-     * @param [locationObj.dataStoreVersionId] - versionId,
+     * @param {string} [locationObj.dataStoreVersionId] - versionId,
      *   needed for cloud backends
-     * @param [location.cryptoScheme] - if location data is
+     * @param {number} [location.cryptoScheme] - if location data is
      * encrypted: the encryption scheme version
-     * @param [location.cipheredDataKey] - if location data
+     * @param {string} [location.cipheredDataKey] - if location data
      * is encrypted: the base64-encoded ciphered data key
-     * @param [locationObj.blockId] - blockId of the part,
+     * @param {string} [locationObj.blockId] - blockId of the part,
      *   set by the Azure Blob Service REST API frontend
      */
-    constructor(locationObj: Location | (Location & Ciphered)) {
+    constructor(locationObj) {
         this._data = {
             key: locationObj.key,
             start: locationObj.start,
@@ -53,7 +32,7 @@ export default class ObjectMDLocation {
             dataStoreVersionId: locationObj.dataStoreVersionId,
             blockId: locationObj.blockId,
         };
-        if ('cryptoScheme' in locationObj) {
+        if (locationObj.cryptoScheme) {
             this._data.cryptoScheme = locationObj.cryptoScheme;
             this._data.cipheredDataKey = locationObj.cipheredDataKey;
         }
@@ -70,17 +49,17 @@ export default class ObjectMDLocation {
     /**
      * Update data location with new info
      *
-     * @param location - single data location info
+     * @param {object} location - single data location info
-     * @param location.key - data backend key
+     * @param {string} location.key - data backend key
-     * @param location.dataStoreName - type of data store
+     * @param {string} location.dataStoreName - type of data store
-     * @param [location.dataStoreVersionId] - data backend version ID
+     * @param {string} [location.dataStoreVersionId] - data backend version ID
-     * @param [location.cryptoScheme] - if location data is
+     * @param {number} [location.cryptoScheme] - if location data is
      * encrypted: the encryption scheme version
-     * @param [location.cipheredDataKey] - if location data
+     * @param {string} [location.cipheredDataKey] - if location data
      * is encrypted: the base64-encoded ciphered data key
-     * @return return this
+     * @return {ObjectMDLocation} return this
      */
-    setDataLocation(location: BaseLocation | (BaseLocation & Ciphered)) {
+    setDataLocation(location) {
         [
             'key',
             'dataStoreName',
@@ -117,7 +96,7 @@ export default class ObjectMDLocation {
         return this._data.start;
     }
 
-    setPartStart(start: number) {
+    setPartStart(start) {
         this._data.start = start;
         return this;
     }
@@ -126,7 +105,7 @@ export default class ObjectMDLocation {
         return this._data.size;
     }
 
-    setPartSize(size: number) {
+    setPartSize(size) {
         this._data.size = size;
         return this;
     }
@@ -143,7 +122,7 @@ export default class ObjectMDLocation {
         return this._data.blockId;
     }
 
-    setBlockId(blockId: string) {
+    setBlockId(blockId) {
         this._data.blockId = blockId;
         return this;
     }
@@ -152,3 +131,5 @@ export default class ObjectMDLocation {
         return this._data;
     }
 }
+
+module.exports = ObjectMDLocation;

lib/models/ReplicationConfiguration.js

@@ -1,16 +1,17 @@
-import assert from 'assert';
+const assert = require('assert');
-import UUID from 'uuid';
+const UUID = require('uuid');
 
-import { RequestLogger } from 'werelogs';
+const escapeForXml = require('../s3middleware/escapeForXml').default;
-
+const errors = require('../errors').default;
-import escapeForXml from '../s3middleware/escapeForXml';
+const { isValidBucketName } = require('../s3routes/routesUtils');
-import errors from '../errors';
-import { isValidBucketName } from '../s3routes/routesUtils';
-import { Status } from './LifecycleRule';
 
 const MAX_RULES = 1000;
 const RULE_ID_LIMIT = 255;
-const validStorageClasses = ['STANDARD', 'STANDARD_IA', 'REDUCED_REDUNDANCY'];
+const validStorageClasses = [
+    'STANDARD',
+    'STANDARD_IA',
+    'REDUCED_REDUNDANCY',
+];
 
 /**
     Example XML request:
@@ -36,45 +37,15 @@ const validStorageClasses = ['STANDARD', 'STANDARD_IA', 'REDUCED_REDUNDANCY'];
     </ReplicationConfiguration>
 */
 
-export type Rule = {
+class ReplicationConfiguration {
-    prefix: string;
-    enabled: boolean;
-    id: string;
-    storageClass?: any;
-};
-
-export type Destination = { StorageClass: string[]; Bucket: string };
-export type XMLRule = {
-    Prefix: string[];
-    Status: Status[];
-    ID?: string[];
-    Destination: Destination[];
-    Transition?: any[];
-    NoncurrentVersionTransition?: any[];
-    Filter?: string;
-};
-
-export default class ReplicationConfiguration {
-    _parsedXML: any;
-    _log: RequestLogger;
-    _config: any;
-    _configPrefixes: string[];
-    _configIDs: string[];
-    _role: string | null;
-    _destination: string | null;
-    _rules: Rule[] | null;
-    _prevStorageClass: null;
-    _hasScalityDestination: boolean | null;
-    _preferredReadLocation: string | null;
-
     /**
      * Create a ReplicationConfiguration instance
-     * @param xml - The parsed XML
+     * @param {string} xml - The parsed XML
-     * @param log - Werelogs logger
+     * @param {object} log - Werelogs logger
-     * @param config - S3 server configuration
+     * @param {object} config - S3 server configuration
-     * @return - ReplicationConfiguration instance
+     * @return {object} - ReplicationConfiguration instance
      */
-    constructor(xml: any, log: RequestLogger, config: any) {
+    constructor(xml, log, config) {
         this._parsedXML = xml;
         this._log = log;
         this._config = config;
@@ -93,7 +64,7 @@ export default class ReplicationConfiguration {
 
     /**
      * Get the role of the bucket replication configuration
-     * @return - The role if defined, otherwise `null`
+     * @return {string|null} - The role if defined, otherwise `null`
      */
     getRole() {
         return this._role;
@@ -101,7 +72,7 @@ export default class ReplicationConfiguration {
 
     /**
      * The bucket to replicate data to
-     * @return - The bucket if defined, otherwise `null`
+     * @return {string|null} - The bucket if defined, otherwise `null`
      */
     getDestination() {
         return this._destination;
@@ -109,7 +80,7 @@ export default class ReplicationConfiguration {
 
     /**
      * The rules for replication configuration
-     * @return - The rules if defined, otherwise `null`
+     * @return {string|null} - The rules if defined, otherwise `null`
      */
     getRules() {
         return this._rules;
@@ -129,7 +100,7 @@ export default class ReplicationConfiguration {
 
     /**
      * Get the replication configuration
-     * @return - The replication configuration
+     * @return {object} - The replication configuration
      */
     getReplicationConfiguration() {
         return {
@@ -142,22 +113,18 @@ export default class ReplicationConfiguration {
 
     /**
      * Build the rule object from the parsed XML of the given rule
-     * @param rule - The rule object from this._parsedXML
+     * @param {object} rule - The rule object from this._parsedXML
-     * @return - The rule object to push into the `Rules` array
+     * @return {object} - The rule object to push into the `Rules` array
      */
-    _buildRuleObject(rule: XMLRule) {
+    _buildRuleObject(rule) {
-        const base = {
+        const obj = {
-            id: '',
             prefix: rule.Prefix[0],
             enabled: rule.Status[0] === 'Enabled',
         };
-        const obj: Rule = { ...base };
         // ID is an optional property, but create one if not provided or is ''.
         // We generate a 48-character alphanumeric, unique ID for the rule.
-        obj.id =
+        obj.id = rule.ID && rule.ID[0] !== '' ? rule.ID[0] :
-            rule.ID && rule.ID[0] !== ''
+            Buffer.from(UUID.v4()).toString('base64');
-                ? rule.ID[0]
-                : Buffer.from(UUID.v4()).toString('base64');
         // StorageClass is an optional property.
         if (rule.Destination[0].StorageClass) {
             obj.storageClass = rule.Destination[0].StorageClass[0];
@@ -167,10 +134,10 @@ export default class ReplicationConfiguration {
 
     /**
      * Check if the Role field of the replication configuration is valid
-     * @param ARN - The Role field value provided in the configuration
+     * @param {string} ARN - The Role field value provided in the configuration
-     * @return `true` if a valid role ARN, `false` otherwise
+     * @return {boolean} `true` if a valid role ARN, `false` otherwise
      */
-    _isValidRoleARN(ARN: string) {
+    _isValidRoleARN(ARN) {
         // AWS accepts a range of values for the Role field. Though this does
         // not encompass all constraints imposed by AWS, we have opted to
         // enforce the following.
@@ -187,32 +154,30 @@ export default class ReplicationConfiguration {
 
     /**
      * Check that the `Role` property of the configuration is valid
+     * @return {undefined}
      */
     _parseRole() {
         const parsedRole = this._parsedXML.ReplicationConfiguration.Role;
         if (!parsedRole) {
             return errors.MalformedXML;
         }
-        const role: string = parsedRole[0];
+        const role = parsedRole[0];
         const rolesArr = role.split(',');
         if (this._hasScalityDestination && rolesArr.length !== 2) {
             return errors.InvalidArgument.customizeDescription(
                 'Invalid Role specified in replication configuration: ' +
-                    'Role must be a comma-separated list of two IAM roles'
+                'Role must be a comma-separated list of two IAM roles');
-            );
         }
         if (!this._hasScalityDestination && rolesArr.length > 1) {
             return errors.InvalidArgument.customizeDescription(
                 'Invalid Role specified in replication configuration: ' +
-                    'Role may not contain a comma separator'
+                'Role may not contain a comma separator');
-            );
         }
-        const invalidRole = rolesArr.find((r) => !this._isValidRoleARN(r));
+        const invalidRole = rolesArr.find(r => !this._isValidRoleARN(r));
         if (invalidRole !== undefined) {
             return errors.InvalidArgument.customizeDescription(
                 'Invalid Role specified in replication configuration: ' +
-                    `'${invalidRole}'`
+                `'${invalidRole}'`);
-            );
         }
         this._role = role;
         return undefined;
@@ -220,6 +185,7 @@ export default class ReplicationConfiguration {
 
     /**
      * Check that the `Rules` property array is valid
+     * @return {undefined}
      */
     _parseRules() {
         // Note that the XML uses 'Rule' while the config object uses 'Rules'.
@@ -229,8 +195,7 @@ export default class ReplicationConfiguration {
         }
         if (Rule.length > MAX_RULES) {
             return errors.InvalidRequest.customizeDescription(
-                'Number of defined replication rules cannot exceed 1000'
+                'Number of defined replication rules cannot exceed 1000');
-            );
         }
         const err = this._parseEachRule(Rule);
         if (err) {
@@ -241,16 +206,15 @@ export default class ReplicationConfiguration {
 
     /**
      * Check that each rule in the `Rules` property array is valid
-     * @param rules - The rule array from this._parsedXML
+     * @param {array} rules - The rule array from this._parsedXML
+     * @return {undefined}
      */
-    _parseEachRule(rules: XMLRule[]) {
+    _parseEachRule(rules) {
-        const rulesArr: Rule[] = [];
+        const rulesArr = [];
         for (let i = 0; i < rules.length; i++) {
             const err =
-                this._parseStatus(rules[i]) ||
+                this._parseStatus(rules[i]) || this._parsePrefix(rules[i]) ||
-                this._parsePrefix(rules[i]) ||
+                this._parseID(rules[i]) || this._parseDestination(rules[i]);
-                this._parseID(rules[i]) ||
-                this._parseDestination(rules[i]);
             if (err) {
                 return err;
             }
@@ -262,9 +226,10 @@ export default class ReplicationConfiguration {
 
     /**
      * Check that the `Status` property is valid
-     * @param rule - The rule object from this._parsedXML
+     * @param {object} rule - The rule object from this._parsedXML
+     * @return {undefined}
      */
-    _parseStatus(rule: XMLRule) {
+    _parseStatus(rule) {
         const status = rule.Status && rule.Status[0];
         if (!status || !['Enabled', 'Disabled'].includes(status)) {
             return errors.MalformedXML;
@@ -274,19 +239,18 @@ export default class ReplicationConfiguration {
 
     /**
      * Check that the `Prefix` property is valid
-     * @param rule - The rule object from this._parsedXML
+     * @param {object} rule - The rule object from this._parsedXML
+     * @return {undefined}
      */
-    _parsePrefix(rule: XMLRule) {
+    _parsePrefix(rule) {
         const prefix = rule.Prefix && rule.Prefix[0];
         // An empty string prefix should be allowed.
         if (!prefix && prefix !== '') {
             return errors.MalformedXML;
         }
         if (prefix.length > 1024) {
-            return errors.InvalidArgument.customizeDescription(
+            return errors.InvalidArgument.customizeDescription('Rule prefix ' +
-                'Rule prefix ' +
+                'cannot be longer than maximum allowed key length of 1024');
-                    'cannot be longer than maximum allowed key length of 1024'
-            );
         }
         // Each Prefix in a list of rules must not overlap. For example, two
         // prefixes 'TaxDocs' and 'TaxDocs/2015' are overlapping. An empty
@@ -294,9 +258,8 @@ export default class ReplicationConfiguration {
         for (let i = 0; i < this._configPrefixes.length; i++) {
             const used = this._configPrefixes[i];
             if (prefix.startsWith(used) || used.startsWith(prefix)) {
-                return errors.InvalidRequest.customizeDescription(
+                return errors.InvalidRequest.customizeDescription('Found ' +
-                    'Found ' + `overlapping prefixes '${used}' and '${prefix}'`
+                    `overlapping prefixes '${used}' and '${prefix}'`);
-                );
             }
         }
         this._configPrefixes.push(prefix);
@@ -305,20 +268,19 @@ export default class ReplicationConfiguration {
 
     /**
      * Check that the `ID` property is valid
-     * @param rule - The rule object from this._parsedXML
+     * @param {object} rule - The rule object from this._parsedXML
+     * @return {undefined}
      */
-    _parseID(rule: XMLRule) {
+    _parseID(rule) {
         const id = rule.ID && rule.ID[0];
         if (id && id.length > RULE_ID_LIMIT) {
-            return errors.InvalidArgument.customizeDescription(
+            return errors.InvalidArgument
-                'Rule Id cannot be greater than 255'
+                .customizeDescription('Rule Id cannot be greater than 255');
-            );
         }
         // Each ID in a list of rules must be unique.
-        if (id && this._configIDs.includes(id)) {
+        if (this._configIDs.includes(id)) {
             return errors.InvalidRequest.customizeDescription(
-                'Rule Id must be unique'
+                'Rule Id must be unique');
-            );
         }
         if (id !== undefined) {
             this._configIDs.push(id);
@@ -328,14 +290,15 @@ export default class ReplicationConfiguration {
 
     /**
      * Check that the `StorageClass` property is valid
-     * @param destination - The destination object from this._parsedXML
+     * @param {object} destination - The destination object from this._parsedXML
+     * @return {undefined}
      */
-    _parseStorageClass(destination: Destination) {
+    _parseStorageClass(destination) {
         const { replicationEndpoints } = this._config;
         // The only condition where the default endpoint is possibly undefined
         // is if there is only a single replication endpoint.
         const defaultEndpoint =
-            replicationEndpoints.find((endpoint: any) => endpoint.default) ||
+            replicationEndpoints.find(endpoint => endpoint.default) ||
             replicationEndpoints[0];
         // StorageClass is optional.
         if (destination.StorageClass === undefined) {
@@ -357,15 +320,9 @@ export default class ReplicationConfiguration {
                     defaultEndpoint.type === undefined;
                 return true;
             }
-            const endpoint = replicationEndpoints.find(
+            const endpoint = replicationEndpoints.find(endpoint =>
-                (endpoint: any) => endpoint.site === storageClass
+                endpoint.site === storageClass);
-            );
             if (endpoint) {
-                // We do not support replication to cold location. 
-                // Only transition to cold location is supported.
-                if (endpoint.site && this._config.locationConstraints[endpoint.site]?.isCold) {
-                    return false;
-                }
                 // If this._hasScalityDestination was not set to true in any
                 // previous iteration or by a prior rule's storage class, then
                 // check if the current endpoint is a Scality destination.
@@ -386,9 +343,10 @@ export default class ReplicationConfiguration {
 
     /**
      * Check that the `Bucket` property is valid
-     * @param destination - The destination object from this._parsedXML
+     * @param {object} destination - The destination object from this._parsedXML
+     * @return {undefined}
      */
-    _parseBucket(destination: Destination) {
+    _parseBucket(destination) {
         const parsedBucketARN = destination.Bucket;
         // If there is no Scality destination, we get the destination bucket
         // from the location configuration.
@@ -401,8 +359,7 @@ export default class ReplicationConfiguration {
         const bucketARN = parsedBucketARN[0];
         if (!bucketARN) {
             return errors.InvalidArgument.customizeDescription(
-                'Destination bucket cannot be null or empty'
+                'Destination bucket cannot be null or empty');
-            );
         }
         const arr = bucketARN.split(':');
         const isValidARN =
@@ -412,20 +369,17 @@ export default class ReplicationConfiguration {
             arr[3] === '' &&
             arr[4] === '';
         if (!isValidARN) {
-            return errors.InvalidArgument.customizeDescription(
+            return errors.InvalidArgument
-                'Invalid bucket ARN'
+                .customizeDescription('Invalid bucket ARN');
-            );
         }
         if (!isValidBucketName(arr[5], [])) {
-            return errors.InvalidArgument.customizeDescription(
+            return errors.InvalidArgument
-                'The specified bucket is not valid'
+                .customizeDescription('The specified bucket is not valid');
-            );
         }
         // We can replicate objects only to one destination bucket.
         if (this._destination && this._destination !== bucketARN) {
             return errors.InvalidRequest.customizeDescription(
-                'The destination bucket must be same for all rules'
+                'The destination bucket must be same for all rules');
-            );
         }
         this._destination = bucketARN;
         return undefined;
@@ -433,9 +387,10 @@ export default class ReplicationConfiguration {
 
     /**
      * Check that the `destination` property is valid
-     * @param rule - The rule object from this._parsedXML
+     * @param {object} rule - The rule object from this._parsedXML
+     * @return {undefined}
      */
-    _parseDestination(rule: XMLRule) {
+    _parseDestination(rule) {
         const dest = rule.Destination && rule.Destination[0];
         if (!dest) {
             return errors.MalformedXML;
@@ -449,6 +404,7 @@ export default class ReplicationConfiguration {
 
     /**
      * Check that the request configuration is valid
+     * @return {undefined}
      */
     parseConfiguration() {
         const err = this._parseRules();
@@ -460,62 +416,48 @@ export default class ReplicationConfiguration {
 
     /**
      * Get the XML representation of the configuration object
-     * @param config - The bucket replication configuration
+     * @param {object} config - The bucket replication configuration
-     * @return - The XML representation of the configuration
+     * @return {string} - The XML representation of the configuration
      */
-    static getConfigXML(config: {
+    static getConfigXML(config) {
-        role: string;
-        destination: string;
-        rules: Rule[];
-    }) {
         const { role, destination, rules } = config;
         const Role = `<Role>${escapeForXml(role)}</Role>`;
         const Bucket = `<Bucket>${escapeForXml(destination)}</Bucket>`;
-        const rulesXML = rules
+        const rulesXML = rules.map(rule => {
-            .map((rule) => {
             const { prefix, enabled, storageClass, id } = rule;
-                const Prefix =
+            const Prefix = prefix === '' ? '<Prefix/>' :
-                    prefix === ''
+                `<Prefix>${escapeForXml(prefix)}</Prefix>`;
-                        ? '<Prefix/>'
+            const Status =
-                        : `<Prefix>${escapeForXml(prefix)}</Prefix>`;
+                `<Status>${enabled ? 'Enabled' : 'Disabled'}</Status>`;
-                const Status = `<Status>${
+            const StorageClass = storageClass ?
-                    enabled ? 'Enabled' : 'Disabled'
+                `<StorageClass>${storageClass}</StorageClass>` : '';
-                }</Status>`;
+            const Destination =
-                const StorageClass = storageClass
+                `<Destination>${Bucket}${StorageClass}</Destination>`;
-                    ? `<StorageClass>${storageClass}</StorageClass>`
-                    : '';
-                const Destination = `<Destination>${Bucket}${StorageClass}</Destination>`;
             // If the ID property was omitted in the configuration object, we
             // create an ID for the rule. Hence it is always defined.
             const ID = `<ID>${escapeForXml(id)}</ID>`;
             return `<Rule>${ID}${Prefix}${Status}${Destination}</Rule>`;
-            })
+        }).join('');
-            .join('');
+        return '<?xml version="1.0" encoding="UTF-8"?>' +
-        return (
-            '<?xml version="1.0" encoding="UTF-8"?>' +
             '<ReplicationConfiguration ' +
                 'xmlns="http://s3.amazonaws.com/doc/2006-03-01/">' +
                 `${rulesXML}${Role}` +
-            '</ReplicationConfiguration>'
+            '</ReplicationConfiguration>';
-        );
     }
 
     /**
      * Validate the bucket metadata replication configuration structure and
      * value types
-     * @param config - The replication configuration to validate
+     * @param {object} config - The replication configuration to validate
+     * @return {undefined}
      */
-    static validateConfig(config: {
+    static validateConfig(config) {
-        role: string;
-        destination: string;
-        rules: Rule[];
-    }) {
         assert.strictEqual(typeof config, 'object');
         const { role, rules, destination } = config;
         assert.strictEqual(typeof role, 'string');
         assert.strictEqual(typeof destination, 'string');
         assert.strictEqual(Array.isArray(rules), true);
-        rules.forEach((rule) => {
+        rules.forEach(rule => {
             assert.strictEqual(typeof rule, 'object');
             const { prefix, enabled, id, storageClass } = rule;
             assert.strictEqual(typeof prefix, 'string');
@@ -527,3 +469,5 @@ export default class ReplicationConfiguration {
         });
     }
 }
+
+module.exports = ReplicationConfiguration;

lib/models/WebsiteConfiguration.js

@@ -0,0 +1,195 @@
+class RoutingRule {
+    /**
+    * Represents a routing rule in a website configuration.
+    * @constructor
+    * @param {object} params - object containing redirect and condition objects
+    * @param {object} params.redirect - specifies how to redirect requests
+    * @param {string} [params.redirect.protocol] - protocol to use for redirect
+    * @param {string} [params.redirect.hostName] - hostname to use for redirect
+    * @param {string} [params.redirect.replaceKeyPrefixWith] - string to replace
+    *   keyPrefixEquals specified in condition
+    * @param {string} [params.redirect.replaceKeyWith] - string to replace key
+    * @param {string} [params.redirect.httpRedirectCode] - http redirect code
+    * @param {object} [params.condition] - specifies conditions for a redirect
+    * @param {string} [params.condition.keyPrefixEquals] - key prefix that
+    *   triggers a redirect
+    * @param {string} [params.condition.httpErrorCodeReturnedEquals] - http code
+    *   that triggers a redirect
+    */
+    constructor(params) {
+        if (params) {
+            this._redirect = params.redirect;
+            this._condition = params.condition;
+        }
+    }
+
+    /**
+    * Return copy of rule as plain object
+    * @return {object} rule;
+    */
+    getRuleObject() {
+        const rule = {
+            redirect: this._redirect,
+            condition: this._condition,
+        };
+        return rule;
+    }
+
+    /**
+    * Return the condition object
+    * @return {object} condition;
+    */
+    getCondition() {
+        return this._condition;
+    }
+
+    /**
+    * Return the redirect object
+    * @return {object} redirect;
+    */
+    getRedirect() {
+        return this._redirect;
+    }
+}
+
+class WebsiteConfiguration {
+    /**
+    * Object that represents website configuration
+    * @constructor
+    * @param {object} params - object containing params to construct Object
+    * @param {string} params.indexDocument - key for index document object
+    *   required when redirectAllRequestsTo is undefined
+    * @param {string} [params.errorDocument] - key for error document object
+    * @param {object} params.redirectAllRequestsTo - object containing info
+    *   about how to redirect all requests
+    * @param {string} params.redirectAllRequestsTo.hostName - hostName to use
+    *   when redirecting all requests
+    * @param {string} [params.redirectAllRequestsTo.protocol] - protocol to use
+    *   when redirecting all requests ('http' or 'https')
+    * @param {(RoutingRule[]|object[])} params.routingRules - array of Routing
+    *   Rule instances or plain routing rule objects to cast as RoutingRule's
+    */
+    constructor(params) {
+        if (params) {
+            this._indexDocument = params.indexDocument;
+            this._errorDocument = params.errorDocument;
+            this._redirectAllRequestsTo = params.redirectAllRequestsTo;
+            this.setRoutingRules(params.routingRules);
+        }
+    }
+
+    /**
+    * Return plain object with configuration info
+    * @return {object} - Object copy of class instance
+    */
+    getConfig() {
+        const websiteConfig = {
+            indexDocument: this._indexDocument,
+            errorDocument: this._errorDocument,
+            redirectAllRequestsTo: this._redirectAllRequestsTo,
+        };
+        if (this._routingRules) {
+            websiteConfig.routingRules =
+            this._routingRules.map(rule => rule.getRuleObject());
+        }
+        return websiteConfig;
+    }
+
+    /**
+    * Set the redirectAllRequestsTo
+    * @param {object} obj - object to set as redirectAllRequestsTo
+    * @param {string} obj.hostName - hostname for redirecting all requests
+    * @param {object} [obj.protocol] - protocol for redirecting all requests
+    * @return {undefined};
+    */
+    setRedirectAllRequestsTo(obj) {
+        this._redirectAllRequestsTo = obj;
+    }
+
+    /**
+    * Return the redirectAllRequestsTo object
+    * @return {object} redirectAllRequestsTo;
+    */
+    getRedirectAllRequestsTo() {
+        return this._redirectAllRequestsTo;
+    }
+
+    /**
+    * Set the index document object name
+    * @param {string} suffix - index document object key
+    * @return {undefined};
+    */
+    setIndexDocument(suffix) {
+        this._indexDocument = suffix;
+    }
+
+    /**
+     * Get the index document object name
+     * @return {string} indexDocument
+     */
+    getIndexDocument() {
+        return this._indexDocument;
+    }
+
+    /**
+     * Set the error document object name
+     * @param {string} key - error document object key
+     * @return {undefined};
+     */
+    setErrorDocument(key) {
+        this._errorDocument = key;
+    }
+
+    /**
+     * Get the error document object name
+     * @return {string} errorDocument
+     */
+    getErrorDocument() {
+        return this._errorDocument;
+    }
+
+    /**
+    * Set the whole RoutingRules array
+    * @param {array} array - array to set as instance's RoutingRules
+    * @return {undefined};
+    */
+    setRoutingRules(array) {
+        if (array) {
+            this._routingRules = array.map(rule => {
+                if (rule instanceof RoutingRule) {
+                    return rule;
+                }
+                return new RoutingRule(rule);
+            });
+        }
+    }
+
+    /**
+     * Add a RoutingRule instance to routingRules array
+     * @param {object} obj - rule to add to array
+     * @return {undefined};
+     */
+    addRoutingRule(obj) {
+        if (!this._routingRules) {
+            this._routingRules = [];
+        }
+        if (obj && obj instanceof RoutingRule) {
+            this._routingRules.push(obj);
+        } else if (obj) {
+            this._routingRules.push(new RoutingRule(obj));
+        }
+    }
+
+    /**
+     * Get routing rules
+     * @return {RoutingRule[]} - array of RoutingRule instances
+     */
+    getRoutingRules() {
+        return this._routingRules;
+    }
+}
+
+module.exports = {
+    RoutingRule,
+    WebsiteConfiguration,
+};

lib/models/WebsiteConfiguration.ts

@@ -1,218 +0,0 @@
-/**
- * @param protocol - protocol to use for redirect
- * @param hostName - hostname to use for redirect
- * @param replaceKeyPrefixWith - string to replace keyPrefixEquals specified in condition
- * @param replaceKeyWith - string to replace key
- * @param httpRedirectCode - http redirect code
- */
-export type Redirect = {
-    protocol?: string;
-    hostName?: string;
-    replaceKeyPrefixWith?: string;
-    replaceKeyWith?: string;
-    httpRedirectCode: string;
-};
-
-/**
- * @param keyPrefixEquals - key prefix that triggers a redirect
- * @param httpErrorCodeReturnedEquals - http code that triggers a redirect
- */
-export type Condition = {
-    keyPrefixEquals?: string;
-    httpErrorCodeReturnedEquals?: string;
-};
-
-export type RoutingRuleParams = { redirect: Redirect; condition?: Condition };
-
-export class RoutingRule {
-    _redirect?: Redirect;
-    _condition?: Condition;
-
-    /**
-    * Represents a routing rule in a website configuration.
-    * @constructor
-    * @param params - object containing redirect and condition objects
-    * @param params.redirect - specifies how to redirect requests
-    * @param [params.condition] - specifies conditions for a redirect
-    */
-    constructor(params?: RoutingRuleParams) {
-        if (params) {
-            this._redirect = params.redirect;
-            this._condition = params.condition;
-        }
-    }
-
-    /**
-    * Return copy of rule as plain object
-    * @return rule;
-    */
-    getRuleObject() {
-        const rule = {
-            redirect: this._redirect,
-            condition: this._condition,
-        };
-        return rule;
-    }
-
-    /**
-    * Return the condition object
-    * @return condition;
-    */
-    getCondition() {
-        return this._condition;
-    }
-
-    /**
-    * Return the redirect object
-    * @return redirect;
-    */
-    getRedirect() {
-        return this._redirect;
-    }
-}
-
-export type RedirectAllRequestsTo = {
-    hostName: string;
-    protocol?: string;
-};
-export class WebsiteConfiguration {
-    _indexDocument?: string;
-    _errorDocument?: string;
-    _redirectAllRequestsTo?: RedirectAllRequestsTo;
-    _routingRules?: RoutingRule[];
-
-    /**
-    * Object that represents website configuration
-    * @constructor
-    * @param params - object containing params to construct Object
-    * @param params.indexDocument - key for index document object
-    *   required when redirectAllRequestsTo is undefined
-    * @param [params.errorDocument] - key for error document object
-    * @param params.redirectAllRequestsTo - object containing info
-    *   about how to redirect all requests
-    * @param params.redirectAllRequestsTo.hostName - hostName to use
-    *   when redirecting all requests
-    * @param [params.redirectAllRequestsTo.protocol] - protocol to use
-    *   when redirecting all requests ('http' or 'https')
-    * @param params.routingRules - array of Routing
-    *   Rule instances or plain routing rule objects to cast as RoutingRule's
-    */
-    constructor(params: {
-        indexDocument: string;
-        errorDocument: string;
-        redirectAllRequestsTo: RedirectAllRequestsTo;
-        routingRules: RoutingRule[] | any[],
-    }) {
-        if (params) {
-            this._indexDocument = params.indexDocument;
-            this._errorDocument = params.errorDocument;
-            this._redirectAllRequestsTo = params.redirectAllRequestsTo;
-            this.setRoutingRules(params.routingRules);
-        }
-    }
-
-    /**
-    * Return plain object with configuration info
-    * @return - Object copy of class instance
-    */
-    getConfig() {
-        const base = {
-            indexDocument: this._indexDocument,
-            errorDocument: this._errorDocument,
-            redirectAllRequestsTo: this._redirectAllRequestsTo,
-        };
-        if (this._routingRules) {
-            const routingRules = this._routingRules.map(r => r.getRuleObject());
-            return { ...base, routingRules };
-        }
-        return { ...base };
-    }
-
-    /**
-    * Set the redirectAllRequestsTo
-    * @param obj - object to set as redirectAllRequestsTo
-    * @param obj.hostName - hostname for redirecting all requests
-    * @param [obj.protocol] - protocol for redirecting all requests
-    */
-    setRedirectAllRequestsTo(obj: { hostName: string; protocol?: string }) {
-        this._redirectAllRequestsTo = obj;
-    }
-
-    /**
-    * Return the redirectAllRequestsTo object
-    * @return redirectAllRequestsTo;
-    */
-    getRedirectAllRequestsTo() {
-        return this._redirectAllRequestsTo;
-    }
-
-    /**
-    * Set the index document object name
-    * @param suffix - index document object key
-    */
-    setIndexDocument(suffix: string) {
-        this._indexDocument = suffix;
-    }
-
-    /**
-     * Get the index document object name
-     * @return indexDocument
-     */
-    getIndexDocument() {
-        return this._indexDocument;
-    }
-
-    /**
-     * Set the error document object name
-     * @param key - error document object key
-     */
-    setErrorDocument(key: string) {
-        this._errorDocument = key;
-    }
-
-    /**
-     * Get the error document object name
-     * @return errorDocument
-     */
-    getErrorDocument() {
-        return this._errorDocument;
-    }
-
-    /**
-    * Set the whole RoutingRules array
-    * @param array - array to set as instance's RoutingRules
-    */
-    setRoutingRules(array?: (RoutingRule | RoutingRuleParams)[]) {
-        if (array) {
-            this._routingRules = array.map(rule => {
-                if (rule instanceof RoutingRule) {
-                    return rule;
-                }
-                return new RoutingRule(rule);
-            });
-        }
-    }
-
-    /**
-     * Add a RoutingRule instance to routingRules array
-     * @param obj - rule to add to array
-     */
-    addRoutingRule(obj?: RoutingRule | RoutingRuleParams) {
-        if (!this._routingRules) {
-            this._routingRules = [];
-        }
-        if (obj && obj instanceof RoutingRule) {
-            this._routingRules.push(obj);
-        } else if (obj) {
-            this._routingRules.push(new RoutingRule(obj));
-        }
-    }
-
-    /**
-     * Get routing rules
-     * @return - array of RoutingRule instances
-     */
-    getRoutingRules() {
-        return this._routingRules;
-    }
-}

lib/models/index.ts

@@ -1,16 +0,0 @@
-export { default as ARN } from './ARN';
-export { default as BackendInfo } from './BackendInfo';
-export { default as BucketAzureInfo } from './BucketAzureInfo';
-export { default as BucketInfo } from './BucketInfo';
-export { default as BucketPolicy } from './BucketPolicy';
-export { default as LifecycleConfiguration } from './LifecycleConfiguration';
-export { default as LifecycleRule } from './LifecycleRule';
-export { default as NotificationConfiguration } from './NotificationConfiguration';
-export { default as ObjectLockConfiguration } from './ObjectLockConfiguration';
-export { default as ObjectMD } from './ObjectMD';
-export { default as ObjectMDAmzRestore } from './ObjectMDAmzRestore';
-export { default as ObjectMDArchive } from './ObjectMDArchive';
-export { default as ObjectMDAzureInfo } from './ObjectMDAzureInfo';
-export { default as ObjectMDLocation } from './ObjectMDLocation';
-export { default as ReplicationConfiguration } from './ReplicationConfiguration';
-export * as WebsiteConfiguration from './WebsiteConfiguration';

lib/network/http/server.ts

@@ -1,6 +1,5 @@
 import * as http from 'http';
 import * as https from 'https';
-import { https as HttpsAgent } from 'httpagent';
 import * as tls from 'tls';
 import * as net from 'net';
 import assert from 'assert';
@@ -410,11 +409,7 @@ export default class Server {
                     method: 'arsenal.network.Server.start',
                     port: this._port,
                 });
-                this._https.agent = new HttpsAgent.Agent(this._https, {
+                this._https.agent = new https.Agent(this._https);
-                    // Do not enforce the maximum number of sockets for the
-                    // main server, as it might be able to serve more clients.
-                    maxSockets: false,
-                });
                 this._server = https.createServer(this._https,
                     (req, res) => this._onRequest(req, res));
             } else {
@@ -435,6 +430,7 @@ export default class Server {
             this._server.on('connection', sock => {
                 // Setting no delay of the socket to the value configured
                 // TODO fix this
+                // @ts-expect-errors
                 sock.setNoDelay(this.isNoDelay());
                 sock.on('error', err => this._logger.info(
                     'socket error - request rejected', { error: err }));

lib/network/http/utils.ts

@@ -77,11 +77,10 @@ export function getByteRangeFromSpec(
             objectSize - 1] };
     }
     if (rangeSpec.start < objectSize) {
-        // test is false if end is undefined or end is greater than objectSize
+        // test is false if end is undefined
-        const end: number = rangeSpec.end !== undefined && rangeSpec.end < objectSize
+        return { range: [rangeSpec.start,
-            ? rangeSpec.end
+            ((rangeSpec.end && (rangeSpec.end < objectSize)) ?
-            : objectSize - 1;
+            rangeSpec.end : objectSize - 1)] };
-        return { range: [rangeSpec.start, end] };
     }
     return { error: errors.InvalidRange };
 }

lib/network/kmip/codec/ttlv.ts

@@ -20,7 +20,7 @@ function _ttlvPadVector(vec: any[]) {
     return vec;
 }
 
-function _throwError(logger: werelogs.Logger, msg: string, data?: LogDictionary) {
+function _throwError(logger: werelogs.Logger, msg: string, data?: LogDictionnary) {
     logger.error(msg, data);
     throw Error(msg);
 }

lib/network/probe/HealthProbeServer.ts

@@ -62,7 +62,7 @@ export default class HealthProbeServer extends httpServer {
     _onLiveness(
         _req: http.IncomingMessage,
         res: http.ServerResponse,
-        log: werelogs.RequestLogger,
+        log: RequestLogger,
     ) {
         if (this._livenessCheck(log)) {
             sendSuccess(res, log);
@@ -74,7 +74,7 @@ export default class HealthProbeServer extends httpServer {
     _onReadiness(
         _req: http.IncomingMessage,
         res: http.ServerResponse,
-        log: werelogs.RequestLogger,
+        log: RequestLogger,
     ) {
         if (this._readinessCheck(log)) {
             sendSuccess(res, log);
@@ -84,11 +84,10 @@ export default class HealthProbeServer extends httpServer {
     }
 
     // expose metrics to Prometheus
-    async _onMetrics(_req: http.IncomingMessage, res: http.ServerResponse) {
+    _onMetrics(_req: http.IncomingMessage, res: http.ServerResponse) {
-        const metrics = await ZenkoMetrics.asPrometheus();
         res.writeHead(200, {
             'Content-Type': ZenkoMetrics.asPrometheusContentType(),
         });
-        res.end(metrics);
+        res.end(ZenkoMetrics.asPrometheus());
     }
 }

lib/network/probe/ProbeServer.ts

@@ -16,7 +16,7 @@ export const DEFAULT_METRICS_ROUTE = '/metrics';
  * @param log - Werelogs instance for logging if you choose to
  */
 
-export type ProbeDelegate = (res: http.ServerResponse, log: werelogs.RequestLogger) => string | void
+export type ProbeDelegate = (res: http.ServerResponse, log: RequestLogger) => string | void
 
 export type ProbeServerParams = {
     port: number;

lib/network/probe/Utils.ts

@@ -1,7 +1,4 @@
 import * as http from 'http';
-
-import { RequestLogger } from 'werelogs';
-
 import { ArsenalError } from '../../errors';
 
 /**

lib/network/rest/RESTClient.ts

@@ -4,7 +4,7 @@ import * as werelogs from 'werelogs';
 import * as constants from '../../constants';
 import * as utils from './utils';
 import errors, { ArsenalError } from '../../errors';
-import { http as HttpAgent } from 'httpagent';
+import HttpAgent from 'agentkeepalive';
 import * as stream from 'stream';
 
 function setRequestUids(reqHeaders: http.IncomingHttpHeaders, reqUids: string) {
@@ -71,7 +71,7 @@ function makeErrorFromHTTPResponse(response: http.IncomingMessage) {
 export default class RESTClient {
     host: string;
     port: number;
-    httpAgent: http.Agent;
+    httpAgent: HttpAgent;
     logging: werelogs.Logger;
     isPassthrough: boolean;
 
@@ -98,10 +98,10 @@ export default class RESTClient {
         this.port = params.port;
         this.isPassthrough = params.isPassthrough || false;
         this.logging = new (params.logApi || werelogs).Logger('DataFileRESTClient');
-        this.httpAgent = new HttpAgent.Agent({
+        this.httpAgent = new HttpAgent({
             keepAlive: true,
             freeSocketTimeout: constants.httpClientFreeSocketTimeout,
-        }) as http.Agent;
+        });
     }
 
     /** Destroy the HTTP agent, forcing a close of the remaining open connections */
@@ -119,7 +119,7 @@ export default class RESTClient {
         method: string,
         headers: http.OutgoingHttpHeaders | null,
         key: string | null,
-        log: werelogs.RequestLogger,
+        log: RequestLogger,
         responseCb: (res: http.IncomingMessage) => void,
     ) {
         const reqHeaders = headers || {};

lib/network/rest/RESTServer.ts

@@ -25,7 +25,7 @@ function setContentRange(
 
 function sendError(
     res: http.ServerResponse,
-    log: werelogs.RequestLogger,
+    log: RequestLogger,
     error: ArsenalError,
     optMessage?: string,
 ) {
@@ -68,6 +68,7 @@ export default class RESTServer extends httpServer {
     }) {
         assert(params.port);
 
+        // @ts-expect-error
         werelogs.configure({
             level: params.log.logLevel,
             dump: params.log.dumpLevel,
@@ -141,7 +142,7 @@ export default class RESTServer extends httpServer {
     _onPut(
         req: http.IncomingMessage,
         res: http.ServerResponse,
-        log: werelogs.RequestLogger,
+        log: RequestLogger,
     ) {
         let size: number;
         try {
@@ -183,7 +184,7 @@ export default class RESTServer extends httpServer {
     _onGet(
         req: http.IncomingMessage,
         res: http.ServerResponse,
-        log: werelogs.RequestLogger,
+        log: RequestLogger,
     ) {
         let pathInfo: ReturnType<typeof parseURL>;
         let rangeSpec: ReturnType<typeof httpUtils.parseRangeSpec> | undefined =
@@ -266,7 +267,7 @@ export default class RESTServer extends httpServer {
     _onDelete(
         req: http.IncomingMessage,
         res: http.ServerResponse,
-        log: werelogs.RequestLogger,
+        log: RequestLogger,
     ) {
         let pathInfo: ReturnType<typeof parseURL>;
         try {

lib/network/rpc/rpc.ts

@@ -1,6 +1,6 @@
 import ioClient from 'socket.io-client';
 import * as http from 'http';
-import { Server as IOServer } from 'socket.io';
+import io from 'socket.io';
 import * as sioStream from './sio-stream';
 import async from 'async';
 import assert from 'assert';
@@ -497,7 +497,7 @@ export function RPCServer(params: {
     assert(params.logger);
 
     const httpServer = http.createServer();
-    const server = new IOServer(httpServer, { maxHttpBufferSize: 1e8 });
+    const server = io(httpServer);
     const log = params.logger;
 
     /**
@@ -508,7 +508,7 @@ export function RPCServer(params: {
      *
      * @param {BaseService} serviceList - list of services to register
      */
-    (server as any).registerServices = function registerServices(...serviceList: any[]) {
+    server.registerServices = function registerServices(...serviceList: any[]) {
         serviceList.forEach(service => {
             const sock = this.of(service.namespace);
             sock.on('connection', conn => {
@@ -536,7 +536,7 @@ export function RPCServer(params: {
         });
     };
 
-    (server as any).listen = function listen(port, bindAddress = undefined) {
+    server.listen = function listen(port, bindAddress = undefined) {
         httpServer.listen(port, bindAddress);
     };
 

lib/policy/resourcePolicySchema.json

@@ -38,7 +38,7 @@
         },
         "principalAWSUserArn": {
             "type": "string",
-            "pattern": "^arn:aws:iam::[0-9]{12}:user/(?!\\*)[\\w+=,.@ -/]{1,2017}$"
+            "pattern": "^arn:aws:iam::[0-9]{12}:user/(?!\\*)[\\w+=,.@ -/]{1,64}$"
         },
         "principalAWSRoleArn": {
             "type": "string",
@@ -360,9 +360,6 @@
             "type": "string",
             "const": "2012-10-17"
         },
-        "Id": {
-            "type": "string"
-        },
         "Statement": {
             "oneOf": [
                 {

lib/policy/userPolicySchema.json

@@ -28,7 +28,7 @@
         },
         "principalAWSUserArn": {
             "type": "string",
-            "pattern": "^arn:aws:iam::[0-9]{12}:user/(?!\\*)[\\w+=,.@ -/]{1,2017}$"
+            "pattern": "^arn:aws:iam::[0-9]{12}:user/(?!\\*)[\\w+=,.@ -/]{1,64}$"
         },
         "principalAWSRoleArn": {
             "type": "string",

lib/policyEvaluator/RequestContext.ts

@@ -12,39 +12,13 @@ import {
     actionMapSSO,
     actionMapSTS,
     actionMapMetadata,
-    actionMapScuba,
 } from './utils/actionMaps';
 
-export const actionNeedQuotaCheck = {
+const _actionNeedQuotaCheck = {
     objectPut: true,
-    objectPutVersion: true,
     objectPutPart: true,
-    objectRestore: true,
 };
 
-/**
- * This variable describes APIs that change the bytes
- * stored, requiring quota updates
- */
-export const actionWithDataDeletion = {
-    objectDelete: true,
-    objectDeleteVersion: true,
-    multipartDelete: true,
-    multiObjectDelete: true,
-};
-
-/**
- * The function returns true if the current API call is a copy object
- * and the action requires a quota evaluation logic, post retrieval
- * of the object metadata.
- * @param {string} action - the action being performed
- * @param {string} currentApi - the current API being called
- * @return {boolean} - whether the action requires a quota check
- */
-export function actionNeedQuotaCheckCopy(action: string, currentApi: string) {
-    return action === 'objectGet' && (currentApi === 'objectCopy' || currentApi === 'objectPutCopyPart');
-}
-
 function _findAction(service: string, method: string) {
     switch (service) {
         case 's3':
@@ -62,8 +36,6 @@ function _findAction(service: string, method: string) {
             return actionMapSTS[method];
         case 'metadata':
             return actionMapMetadata[method];
-        case 'scuba':
-            return actionMapScuba[method];
         default:
             return undefined;
     }
@@ -133,10 +105,6 @@ function _buildArn(
             return `arn:scality:metadata::${requesterInfo!.accountid}:` +
             `${generalResource}/`;
         }
-        case 'scuba': {
-            return `arn:scality:scuba::${requesterInfo!.accountid}:` +
-            `${generalResource}${specificResource ? '/' + specificResource : ''}`;
-        }
         default:
             return undefined;
     }
@@ -200,12 +168,12 @@ export default class RequestContext {
     _policyArn: string;
     _action?: string;
     _needQuota: boolean;
+    _postXml?: string;
     _requestObjTags: string | null;
     _existingObjTag: string | null;
     _needTagEval: boolean;
     _foundAction?: string;
     _foundResource?: string;
-    _objectLockRetentionDays?: number | null;
 
     constructor(
         headers: { [key: string]: string | string[] },
@@ -224,10 +192,7 @@ export default class RequestContext {
         securityToken: string,
         policyArn: string,
         action?: string,
-        requestObjTags?: string,
+        postXml?: string,
-        existingObjTag?: string,
-        needTagEval?: false,
-        objectLockRetentionDays?: number,
     ) {
         this._headers = headers;
         this._query = query;
@@ -256,12 +221,11 @@ export default class RequestContext {
         this._securityToken = securityToken;
         this._policyArn = policyArn;
         this._action = action;
-        this._needQuota = actionNeedQuotaCheck[apiMethod] === true
+        this._needQuota = _actionNeedQuotaCheck[apiMethod] === true;
-            || actionWithDataDeletion[apiMethod] === true;
+        this._postXml = postXml;
-        this._requestObjTags = requestObjTags || null;
+        this._requestObjTags = null;
-        this._existingObjTag = existingObjTag || null;
+        this._existingObjTag = null;
-        this._needTagEval = needTagEval || false;
+        this._needTagEval = false;
-        this._objectLockRetentionDays = objectLockRetentionDays || null;
         return this;
     }
 
@@ -274,7 +238,7 @@ export default class RequestContext {
             apiMethod: this._apiMethod,
             headers: this._headers,
             query: this._query,
-            requesterInfo: this._requesterInfo,
+            requersterInfo: this._requesterInfo,
             requesterIp: this._requesterIp,
             sslEnabled: this._sslEnabled,
             awsService: this._awsService,
@@ -290,10 +254,10 @@ export default class RequestContext {
             securityToken: this._securityToken,
             policyArn: this._policyArn,
             action: this._action,
+            postXml: this._postXml,
             requestObjTags: this._requestObjTags,
             existingObjTag: this._existingObjTag,
             needTagEval: this._needTagEval,
-            objectLockRetentionDays: this._objectLockRetentionDays,
         };
         return JSON.stringify(requestInfo);
     }
@@ -314,28 +278,12 @@ export default class RequestContext {
         if (resource) {
             obj.specificResource = resource;
         }
-        return new RequestContext(
+        return new RequestContext(obj.headers, obj.query, obj.generalResource,
-            obj.headers,
+            obj.specificResource, obj.requesterIp, obj.sslEnabled,
-            obj.query,
+            obj.apiMethod, obj.awsService, obj.locationConstraint,
-            obj.generalResource,
+            obj.requesterInfo, obj.signatureVersion,
-            obj.specificResource,
+            obj.authType, obj.signatureAge, obj.securityToken, obj.policyArn,
-            obj.requesterIp,
+            obj.action, obj.postXml);
-            obj.sslEnabled,
-            obj.apiMethod,
-            obj.awsService,
-            obj.locationConstraint,
-            obj.requesterInfo,
-            obj.signatureVersion,
-            obj.authType,
-            obj.signatureAge,
-            obj.securityToken,
-            obj.policyArn,
-            obj.action,
-            obj.requestObjTags,
-            obj.existingObjTag,
-            obj.needTagEval,
-            obj.objectLockRetentionDays,
-        );
     }
 
     /**
@@ -679,6 +627,26 @@ export default class RequestContext {
         return this._needQuota;
     }
 
+    /**
+     * Set request post
+     *
+     * @param postXml - request post
+     * @return itself
+     */
+    setPostXml(postXml: string) {
+        this._postXml = postXml;
+        return this;
+    }
+
+    /**
+     * Get request post
+     *
+     * @return request post
+     */
+    getPostXml() {
+        return this._postXml;
+    }
+
     /**
      * Set request object tags
      *
@@ -738,24 +706,4 @@ export default class RequestContext {
     getNeedTagEval() {
         return this._needTagEval;
     }
-
-    /**
-     * Get object lock retention days
-     *
-     * @returns objectLockRetentionDays - object lock retention days 
-     */
-    getObjectLockRetentionDays() {
-        return this._objectLockRetentionDays;
-    }
-
-    /**
-     * Set object lock retention days
-     *
-     * @param objectLockRetentionDays - object lock retention days
-     * @returns itself
-     */
-    setObjectLockRetentionDays(objectLockRetentionDays: number) {
-        this._objectLockRetentionDays = objectLockRetentionDays;
-        return this;
-    }
 }

lib/policyEvaluator/evaluator.ts

@@ -13,11 +13,7 @@ const operatorsWithVariables = ['StringEquals', 'StringNotEquals',
 const operatorsWithNegation = ['StringNotEquals',
     'StringNotEqualsIgnoreCase', 'StringNotLike', 'ArnNotEquals',
     'ArnNotLike', 'NumericNotEquals'];
-const tagConditions = new Set([
+const tagConditions = new Set(['s3:ExistingObjectTag', 's3:RequestObjectTagKey', 's3:RequestObjectTagKeys']);
-    's3:ExistingObjectTag',
-    's3:RequestObjectTagKey',
-    's3:RequestObjectTagKeys',
-]);
 
 
 /**
@@ -28,11 +24,11 @@ const tagConditions = new Set([
  * @param log - logger
  * @return true if applicable, false if not
  */
-export function isResourceApplicable(
+export const isResourceApplicable = (
     requestContext: RequestContext,
     statementResource: string | string[],
     log: Logger,
-): boolean {
+): boolean => {
     const resource = requestContext.getResource();
     if (!Array.isArray(statementResource)) {
         // eslint-disable-next-line no-param-reassign
@@ -63,7 +59,7 @@ export function isResourceApplicable(
         { requestResource: resource });
     // If no match found, no resource is applicable
     return false;
-}
+};
 
 /**
  * Check whether action in policy statement applies to request
@@ -73,11 +69,11 @@ export function isResourceApplicable(
  * @param log - logger
  * @return true if applicable, false if not
  */
-export function isActionApplicable(
+export const isActionApplicable = (
     requestAction: string,
     statementAction: string | string[],
     log: Logger,
-): boolean {
+): boolean => {
     if (!Array.isArray(statementAction)) {
         // eslint-disable-next-line no-param-reassign
         statementAction = [statementAction];
@@ -99,33 +95,32 @@ export function isActionApplicable(
         { requestAction });
     // If no match found, return false
     return false;
-}
+};
 
 /**
  * Check whether request meets policy conditions
- * @param {RequestContext} requestContext - info about request
+ * @param requestContext - info about request
- * @param {object} statementCondition - Condition statement from policy
+ * @param statementCondition - Condition statement from policy
- * @param {Logger} log - logger
+ * @param log - logger
- * @return {boolean|null} a condition evaluation result, one of:
+ * @return contains whether conditions are allowed and whether they
- * - true: condition is met
+ * contain any tag condition keys
- * - false: condition is not met
- * - null: condition evaluation requires additional info to be
- *   provided (namely, for tag conditions, request tags and/or object
- *   tags have to be provided to evaluate the condition)
  */
-export function meetConditions(
+export const meetConditions = (
     requestContext: RequestContext,
     statementCondition: any,
     log: Logger,
-): boolean | null {
+) => {
-    let hasTagConditions = false;
     // The Condition portion of a policy is an object with different
     // operators as keys
-    for (const operator of Object.keys(statementCondition)) {
+    const conditionEval = {};
+    const operators = Object.keys(statementCondition);
+    const length = operators.length;
+    for (let i = 0; i < length; i++) {
+        const operator = operators[i];
         const hasPrefix = operator.includes(':');
         const hasIfExistsCondition = operator.endsWith('IfExists');
         // If has "IfExists" added to operator name, or operator has "ForAnyValue" or
-        // "ForAllValues" prefix, find operator name without "IfExists" or prefix
+        // "For All Values" prefix, find operator name without "IfExists" or prefix
         let bareOperator = hasIfExistsCondition ? operator.slice(0, -8) :
             operator;
         let prefix: string | undefined;
@@ -140,6 +135,10 @@ export function meetConditions(
         // Note: this should be the actual operator name, not the bareOperator
         const conditionsWithSameOperator = statementCondition[operator];
         const conditionKeys = Object.keys(conditionsWithSameOperator);
+        if (conditionKeys.some(key => tagConditions.has(key)) && !requestContext.getNeedTagEval()) {
+            // @ts-expect-error
+            conditionEval.tagConditions = true;
+        }
         const conditionKeysLength = conditionKeys.length;
         for (let j = 0; j < conditionKeysLength; j++) {
             const key = conditionKeys[j];
@@ -156,10 +155,6 @@ export function meetConditions(
             // tag key is included in condition key and needs to be
             // moved to value for evaluation, otherwise key/value are unchanged
             const [transformedKey, transformedValue] = transformTagKeyValue(key, value);
-            if (tagConditions.has(transformedKey) && !requestContext.getNeedTagEval()) {
-                hasTagConditions = true;
-                continue;
-            }
             // Pull key using requestContext
             // TODO: If applicable to S3, handle policy set operations
             // where a keyBasedOnRequestContext returns multiple values and
@@ -185,10 +180,11 @@ export function meetConditions(
                 log.trace('condition not satisfied due to ' +
                 'missing info', { operator,
                     conditionKey: transformedKey, policyValue: transformedValue });
-                return false;
+                return { allow: false };
             }
             // If condition operator prefix is included, the key should be an array
             if (prefix && !Array.isArray(keyBasedOnRequestContext)) {
+                // @ts-expect-error
                 keyBasedOnRequestContext = [keyBasedOnRequestContext];
             }
             // Transalate operator into function using bareOperator
@@ -200,16 +196,14 @@ export function meetConditions(
             if (!operatorFunction(keyBasedOnRequestContext, transformedValue, prefix)) {
                 log.trace('did not satisfy condition', { operator: bareOperator,
                     keyBasedOnRequestContext, policyValue: transformedValue });
-                return false;
+                return { allow: false };
             }
         }
     }
-    // one or more conditions required tag info to be evaluated
+    // @ts-expect-error
-    if (hasTagConditions) {
+    conditionEval.allow = true;
-        return null;
+    return conditionEval;
-    }
+};
-    return true;
-}
 
 /**
  * Evaluate whether a request is permitted under a policy.
@@ -222,15 +216,13 @@ export function meetConditions(
  * @return Allow if permitted, Deny if not permitted or Neutral
  * if not applicable
  */
-export function evaluatePolicy(
+export const evaluatePolicy = (
     requestContext: RequestContext,
     policy: any,
     log: Logger,
-): string {
+): string => {
     // TODO: For bucket policies need to add Principal evaluation
-    let allow = false;
+    let verdict = 'Neutral';
-    let allowWithTagCondition = false;
-    let denyWithTagCondition = false;
 
     if (!Array.isArray(policy.Statement)) {
         // eslint-disable-next-line no-param-reassign
@@ -267,18 +259,10 @@ export function evaluatePolicy(
         }
         const conditionEval = currentStatement.Condition ?
             meetConditions(requestContext, currentStatement.Condition, log) :
-            true;
+            null;
         // If do not meet conditions move on to next statement
-        if (conditionEval === false) {
+        // @ts-expect-error
-            continue;
+        if (conditionEval && !conditionEval.allow) {
-        }
-        // If condition needs tag info to be evaluated, mark and move on to next statement
-        if (conditionEval === null) {
-            if (currentStatement.Effect === 'Deny') {
-                denyWithTagCondition = true;
-            } else {
-                allowWithTagCondition = true;
-            }
             continue;
         }
         if (currentStatement.Effect === 'Deny') {
@@ -287,30 +271,19 @@ export function evaluatePolicy(
             return 'Deny';
         }
         log.trace('Allow statement applies');
-        // statement is applicable, conditions are met and Effect is
+        // If statement is applicable, conditions are met and Effect is
-        // to Allow
+        // to Allow, set verdict to Allow
-        allow = true;
-    }
-    let verdict;
-    if (denyWithTagCondition) {
-        // priority is on checking tags to potentially deny
-        verdict = 'DenyWithTagCondition';
-    } else if (allow) {
-        // at least one statement is an allow
         verdict = 'Allow';
-    } else if (allowWithTagCondition) {
+        // @ts-expect-error
-        // all allow statements need tag checks
+        if (conditionEval && conditionEval.tagConditions) {
-        verdict = 'AllowWithTagCondition';
+            verdict = 'NeedTagConditionEval';
-    } else {
+        }
-        // no statement matched to allow or deny
-        verdict = 'Neutral';
     }
     log.trace('result of evaluating single policy', { verdict });
     return verdict;
-}
+};
 
 /**
- * @deprecated Upgrade to standardEvaluateAllPolicies
  * Evaluate whether a request is permitted under a policy.
  * @param requestContext - Info necessary to
  * evaluate permission
@@ -321,58 +294,24 @@ export function evaluatePolicy(
  * @return Allow if permitted, Deny if not permitted.
  * Default is to Deny. Deny overrides an Allow
  */
-export function evaluateAllPolicies(
+export const evaluateAllPolicies = (
     requestContext: RequestContext,
     allPolicies: any[],
     log: Logger,
-): string {
+): string => {
-    return standardEvaluateAllPolicies(requestContext, allPolicies, log).verdict;
-}
-export function standardEvaluateAllPolicies(
-    requestContext: RequestContext,
-    allPolicies: any[],
-    log: Logger,
-): {
-    verdict: string;
-    isImplicit: boolean;
-} {
     log.trace('evaluating all policies');
-    let allow = false;
+    let verdict = 'Deny';
-    let allowWithTagCondition = false;
-    let denyWithTagCondition = false;
     for (let i = 0; i < allPolicies.length; i++) {
-        const singlePolicyVerdict = evaluatePolicy(requestContext, allPolicies[i], log);
+        const singlePolicyVerdict =
+            evaluatePolicy(requestContext, allPolicies[i], log);
         // If there is any Deny, just return Deny
         if (singlePolicyVerdict === 'Deny') {
-            return {
+            return 'Deny';
-                verdict: 'Deny',
-                isImplicit: false,
-            };
         }
         if (singlePolicyVerdict === 'Allow') {
-            allow = true;
-        } else if (singlePolicyVerdict === 'AllowWithTagCondition') {
-            allowWithTagCondition = true;
-        } else if (singlePolicyVerdict === 'DenyWithTagCondition') {
-            denyWithTagCondition = true;
-        } // else 'Neutral'
-    }
-    let verdict;
-    let isImplicit = false;
-    if (allow) {
-        if (denyWithTagCondition) {
-            verdict = 'NeedTagConditionEval';
-        } else {
             verdict = 'Allow';
         }
-    } else {
-        if (allowWithTagCondition) {
-            verdict = 'NeedTagConditionEval';
-        } else {
-            verdict = 'Deny';
-            isImplicit = true;
     }
-    }
+    log.trace('result of evaluating all pollicies', { verdict });
-    log.trace('result of evaluating all policies', { verdict, isImplicit });
+    return verdict;
-    return { verdict, isImplicit };
+};
-}

lib/policyEvaluator/principal.ts

@@ -23,22 +23,15 @@ export default class Principal {
      * @param statement - Statement policy field
      * @return True if meet conditions
      */
-    static _evaluateStatement(
+    static _evaluateCondition(
         params: Params,
         statement: Statement,
-    ): 'Neutral' | 'Allow' | 'Deny' {
+        // TODO Fix return type
-        const reverse = !!statement.NotPrincipal;
+    ): any {
-        if (reverse) {
-            // In case of anonymous NotPrincipal, this will neutral everyone
-            return 'Neutral';
-        }
         if (statement.Condition) {
-            const conditionEval = meetConditions(params.rc, statement.Condition, params.log);
+            return meetConditions(params.rc, statement.Condition, params.log);
-            if (conditionEval === false || conditionEval === null) {
-                return 'Neutral';
         }
-        }
+        return true;
-        return statement.Effect;
     }
 
     /**
@@ -55,12 +48,19 @@ export default class Principal {
         statement: Statement,
         valids: Valid,
     ): 'Neutral' | 'Allow' | 'Deny' {
-        const principal = (statement.Principal || statement.NotPrincipal)!;
         const reverse = !!statement.NotPrincipal;
-        if (typeof principal === 'string') {
+        const principal = (statement.Principal || statement.NotPrincipal)!;
-            if (principal === '*') {
+        if (typeof principal === 'string' && principal === '*') {
-                return Principal._evaluateStatement(params, statement);
+            if (reverse) {
+                // In case of anonymous NotPrincipal, this will neutral everyone
+                return 'Neutral';
             }
+            const conditionEval = Principal._evaluateCondition(params, statement);
+            if (!conditionEval || conditionEval.allow === false) {
+                return 'Neutral';
+            }
+            return statement.Effect;
+        } else if (typeof principal === 'string') {
             return 'Deny';
         }
         let ref = [];
@@ -82,8 +82,28 @@ export default class Principal {
         }
         toCheck = Array.isArray(toCheck) ? toCheck : [toCheck];
         ref = Array.isArray(ref) ? ref : [ref];
-        if (toCheck.includes('*') || ref.some(r => toCheck.includes(r))) {
+        if (toCheck.indexOf('*') !== -1) {
-            return Principal._evaluateStatement(params, statement);
+            if (reverse) {
+                return 'Neutral';
+            }
+            const conditionEval = Principal._evaluateCondition(params, statement);
+            if (!conditionEval || conditionEval.allow === false) {
+                return 'Neutral';
+            }
+            return statement.Effect;
+        }
+        const len = ref.length;
+        for (let i = 0; i < len; ++i) {
+            if (toCheck.indexOf(ref[i]) !== -1) {
+                if (reverse) {
+                    return 'Neutral';
+                }
+                const conditionEval = Principal._evaluateCondition(params, statement);
+                if (!conditionEval || conditionEval.allow === false) {
+                    return 'Neutral';
+                }
+                return statement.Effect;
+            }
         }
         if (reverse) {
             return statement.Effect;

lib/policyEvaluator/utils/actionMaps.ts

@@ -4,14 +4,14 @@ const sharedActionMap = {
     bucketDeleteEncryption: 's3:PutEncryptionConfiguration',
     bucketDeletePolicy: 's3:DeleteBucketPolicy',
     bucketDeleteWebsite: 's3:DeleteBucketWebsite',
-    bucketDeleteTagging: 's3:PutBucketTagging',
+    bucketDeleteTagging: 's3:DeleteBucketTagging',
     bucketGet: 's3:ListBucket',
     bucketGetACL: 's3:GetBucketAcl',
     bucketGetCors: 's3:GetBucketCORS',
     bucketGetEncryption: 's3:GetEncryptionConfiguration',
     bucketGetLifecycle: 's3:GetLifecycleConfiguration',
     bucketGetLocation: 's3:GetBucketLocation',
-    bucketGetNotification: 's3:GetBucketNotification',
+    bucketGetNotification: 's3:GetBucketNotificationConfiguration',
     bucketGetObjectLock: 's3:GetBucketObjectLockConfiguration',
     bucketGetPolicy: 's3:GetBucketPolicy',
     bucketGetReplication: 's3:GetReplicationConfiguration',
@@ -23,7 +23,7 @@ const sharedActionMap = {
     bucketPutCors: 's3:PutBucketCORS',
     bucketPutEncryption: 's3:PutEncryptionConfiguration',
     bucketPutLifecycle: 's3:PutLifecycleConfiguration',
-    bucketPutNotification: 's3:PutBucketNotification',
+    bucketPutNotification: 's3:PutBucketNotificationConfiguration',
     bucketPutObjectLock: 's3:PutBucketObjectLockConfiguration',
     bucketPutPolicy: 's3:PutBucketPolicy',
     bucketPutReplication: 's3:PutReplicationConfiguration',
@@ -42,7 +42,6 @@ const sharedActionMap = {
     objectGetLegalHold: 's3:GetObjectLegalHold',
     objectGetRetention: 's3:GetObjectRetention',
     objectGetTagging: 's3:GetObjectTagging',
-    objectHead: 's3:GetObject',
     objectPut: 's3:PutObject',
     objectPutACL: 's3:PutObjectAcl',
     objectPutLegalHold: 's3:PutObjectLegalHold',
@@ -52,12 +51,6 @@ const sharedActionMap = {
     objectPutVersion: 's3:PutObjectVersion',
 };
 
-const actionMapBucketQuotas = {
-    bucketGetQuota: 'scality:GetBucketQuota',
-    bucketUpdateQuota: 'scality:UpdateBucketQuota',
-    bucketDeleteQuota: 'scality:DeleteBucketQuota',
-};
-
 // action map used for request context
 const actionMapRQ = {
     bucketPut: 's3:CreateBucket',
@@ -65,35 +58,36 @@ const actionMapRQ = {
     // see http://docs.aws.amazon.com/AmazonS3/latest/API/
     // RESTBucketDELETEcors.html
     bucketDeleteCors: 's3:PutBucketCORS',
-    bucketDeleteReplication: 's3:PutReplicationConfiguration',
+    bucketDeleteReplication: 's3:DeleteReplicationConfiguration',
-    bucketDeleteLifecycle: 's3:PutLifecycleConfiguration',
+    bucketDeleteLifecycle: 's3:DeleteLifecycleConfiguration',
     completeMultipartUpload: 's3:PutObject',
     initiateMultipartUpload: 's3:PutObject',
     objectDeleteVersion: 's3:DeleteObjectVersion',
     objectDeleteTaggingVersion: 's3:DeleteObjectVersionTagging',
-    objectGetArchiveInfo: 'scality:GetObjectArchiveInfo',
     objectGetVersion: 's3:GetObjectVersion',
     objectGetACLVersion: 's3:GetObjectVersionAcl',
     objectGetTaggingVersion: 's3:GetObjectVersionTagging',
+    objectHead: 's3:GetObject',
     objectPutACLVersion: 's3:PutObjectVersionAcl',
     objectPutPart: 's3:PutObject',
     objectPutTaggingVersion: 's3:PutObjectVersionTagging',
     serviceGet: 's3:ListAllMyBuckets',
     objectReplicate: 's3:ReplicateObject',
-    objectGetRetentionVersion: 's3:GetObjectRetention',
+    objectPutRetentionVersion: 's3:PutObjectVersionRetention',
-    objectPutRetentionVersion: 's3:PutObjectRetention',
+    objectPutLegalHoldVersion: 's3:PutObjectVersionLegalHold',
-    objectGetLegalHoldVersion: 's3:GetObjectLegalHold',
-    objectPutLegalHoldVersion: 's3:PutObjectLegalHold',
-    listObjectVersions: 's3:ListBucketVersions',
     ...sharedActionMap,
-    ...actionMapBucketQuotas,
 };
 
 // action map used for bucket policies
-const actionMapBP = actionMapRQ;
+const actionMapBP = { ...sharedActionMap };
 
 // action map for all relevant s3 actions
 const actionMapS3 = {
+    // TODO
+    // @ts-ignore
+    bucketGetNotification: 's3:GetBucketNotification',
+    // @ts-ignore
+    bucketPutNotification: 's3:PutBucketNotification',
     ...sharedActionMap,
     ...actionMapRQ,
     ...actionMapBP,
@@ -113,7 +107,7 @@ const actionMonitoringMapS3 = {
     bucketGetCors: 'GetBucketCors',
     bucketGetLifecycle: 'GetBucketLifecycleConfiguration',
     bucketGetLocation: 'GetBucketLocation',
-    bucketGetNotification: 'GetBucketNotification',
+    bucketGetNotification: 'GetBucketNotificationConfiguration',
     bucketGetObjectLock: 'GetObjectLockConfiguration',
     bucketGetPolicy: 'GetBucketPolicy',
     bucketGetReplication: 'GetBucketReplication',
@@ -126,7 +120,7 @@ const actionMonitoringMapS3 = {
     bucketPutACL: 'PutBucketAcl',
     bucketPutCors: 'PutBucketCors',
     bucketPutLifecycle: 'PutBucketLifecycleConfiguration',
-    bucketPutNotification: 'PutBucketNotification',
+    bucketPutNotification: 'PutBucketNotificationConfiguration',
     bucketPutObjectLock: 'PutObjectLockConfiguration',
     bucketPutPolicy: 'PutBucketPolicy',
     bucketPutReplication: 'PutBucketReplication',
@@ -159,15 +153,6 @@ const actionMonitoringMapS3 = {
     objectPutTagging: 'PutObjectTagging',
     objectRestore: 'RestoreObject',
     serviceGet: 'ListBuckets',
-    bucketGetQuota: 'GetBucketQuota',
-    bucketUpdateQuota: 'UpdateBucketQuota',
-    bucketDeleteQuota: 'DeleteBucketQuota', 
-};
-
-const actionMapAccountQuotas = {
-    UpdateAccountQuota : 'scality:UpdateAccountQuota',
-    DeleteAccountQuota : 'scality:DeleteAccountQuota',
-    GetAccountQuota : 'scality:GetAccountQuota',
 };
 
 const actionMapIAM = {
@@ -203,15 +188,10 @@ const actionMapIAM = {
     removeUserFromGroup: 'iam:RemoveUserFromGroup',
     updateAccessKey: 'iam:UpdateAccessKey',
     updateGroup: 'iam:UpdateGroup',
-    updateRole: 'iam:UpdateRole',
     updateUser: 'iam:UpdateUser',
     getAccessKeyLastUsed: 'iam:GetAccessKeyLastUsed',
     generateCredentialReport: 'iam:GenerateCredentialReport',
     getCredentialReport: 'iam:GetCredentialReport',
-    tagUser: 'iam:TagUser',
-    unTagUser: 'iam:UntagUser',
-    listUserTags: 'iam:ListUserTags',
-    ...actionMapAccountQuotas,
 };
 
 const actionMapSSO = {
@@ -227,14 +207,6 @@ const actionMapMetadata = {
     default: 'metadata:bucketd',
 };
 
-const actionMapScuba = {
-    GetMetrics: 'scuba:GetMetrics',
-    AdminStartIngest: 'scuba:AdminStartIngest',
-    AdminStopIngest: 'scuba:AdminStopIngest',
-    AdminReadRaftCseq: 'scuba:AdminReadRaftCseq',
-    AdminTriggerRepair: 'scuba:AdminTriggerRepair',
-};
-
 export {
     actionMapRQ,
     actionMapBP,
@@ -244,5 +216,4 @@ export {
     actionMapSSO,
     actionMapSTS,
     actionMapMetadata,
-    actionMapScuba,
 };

lib/policyEvaluator/utils/checkArnMatch.ts

@@ -1,5 +1,5 @@
 import { handleWildcardInResource } from './wildcards';
-import { policyArnAllowedEmptyAccountId } from '../../constants';
+
 /**
  * Checks whether an ARN from a request matches an ARN in a policy
  * to compare against each portion of the ARN from the request
@@ -38,10 +38,9 @@ export default function checkArnMatch(
         const requestSegment = caseSensitive ? requestArnArr[j] :
             requestArnArr[j].toLowerCase();
         const policyArnArr = policyArn.split(':');
-        // We want to allow an empty account ID for utapi and scuba service ARNs to not
+        // We want to allow an empty account ID for utapi service ARNs to not
         // break compatibility.
-        if (j === 4 && policyArnAllowedEmptyAccountId.includes(policyArnArr[2])
+        if (j === 4 && policyArnArr[2] === 'utapi' && policyArnArr[4] === '') {
-            && policyArnArr[4] === '') {
             continue;
         } else if (!segmentRegEx.test(requestSegment)) {
             return false;

lib/policyEvaluator/utils/conditions.ts

@@ -11,30 +11,31 @@ import ipaddr from 'ipaddr.js';
  * @param requestContext - info sent with request
  * @return condition key value
  */
-export function findConditionKey(
+export const findConditionKey = (
     key: string,
     requestContext: RequestContext,
-): any {
+): string => {
     // TODO: Consider combining with findVariable function if no benefit
     // to keeping separate
     const headers = requestContext.getHeaders();
     const query = requestContext.getQuery();
     const requesterInfo = requestContext.getRequesterInfo();
 
+    const map = new Map();
     // Possible AWS Condition keys (http://docs.aws.amazon.com/IAM/latest/
     // UserGuide/reference_policies_elements.html#AvailableKeys)
-    switch (key) {
+
     // aws:CurrentTime – Used for date/time conditions
     // (see Date Condition Operators).
-    case 'aws:CurrentTime': return new Date().toISOString();
+    map.set('aws:CurrentTime', new Date().toISOString());
     // aws:EpochTime – Used for date/time conditions
     // (see Date Condition Operators).
-    case 'aws:EpochTime': return Date.now().toString();
+    map.set('aws:EpochTime', Date.now().toString());
     // aws:TokenIssueTime – Date/time that temporary security
     // credentials were issued (see Date Condition Operators).
     // Only present in requests that are signed using temporary security
     // credentials.
-    case 'aws:TokenIssueTime': return requestContext.getTokenIssueTime();
+    map.set('aws:TokenIssueTime', requestContext.getTokenIssueTime());
     // aws:MultiFactorAuthPresent – Used to check whether MFA was used
     // (see Boolean Condition Operators).
     // Note: This key is only present if MFA was used. So, the following
@@ -44,137 +45,133 @@ export function findConditionKey(
     // Instead use:
     //     "Condition" :
     //     { "Null" : { "aws:MultiFactorAuthPresent" : true } }
-    case 'aws:MultiFactorAuthPresent': return requestContext.getMultiFactorAuthPresent();
+    map.set('aws:MultiFactorAuthPresent',
+        requestContext.getMultiFactorAuthPresent());
     // aws:MultiFactorAuthAge – Used to check how many seconds since
     // MFA credentials were issued. If MFA was not used,
     // this key is not present
-    case 'aws:MultiFactorAuthAge': return requestContext.getMultiFactorAuthAge();
+    map.set('aws:MultiFactorAuthAge', requestContext.getMultiFactorAuthAge());
     // aws:principaltype states whether the principal is an account,
     // user, federated, or assumed role
     // Note: Docs for conditions have "PrincipalType" but simulator
     // and docs for variables have lowercase
-    case 'aws:principaltype': return requesterInfo.principaltype;
+    map.set('aws:principaltype', requesterInfo.principaltype);
     // aws:Referer – Used to check who referred the client browser to
     // the address the request is being sent to. Only supported by some
     // services, such as S3. Value comes from the referer header in the
     // HTTPS request made to AWS.
-    case 'aws:referer': return headers.referer;
+    map.set('aws:referer', headers.referer);
     // aws:SecureTransport – Used to check whether the request was sent
     // using SSL (see Boolean Condition Operators).
-    case 'aws:SecureTransport': return requestContext.getSslEnabled() ? 'true' : 'false';
+    map.set('aws:SecureTransport',
+        requestContext.getSslEnabled() ? 'true' : 'false');
     // aws:SourceArn – Used check the source of the request,
     // using the ARN of the source. N/A here.
-    case 'aws:SourceArn': return undefined;
+    map.set('aws:SourceArn', undefined);
     // aws:SourceIp – Used to check the requester's IP address
     // (see IP Address Condition Operators)
-    case 'aws:SourceIp': return requestContext.getRequesterIp();
+    map.set('aws:SourceIp', requestContext.getRequesterIp());
     // aws:SourceVpc – Used to restrict access to a specific
     // AWS Virtual Private Cloud. N/A here.
-    case 'aws:SourceVpc': return undefined;
+    map.set('aws:SourceVpc', undefined);
     // aws:SourceVpce – Used to limit access to a specific VPC endpoint
     // N/A here
-    case 'aws:SourceVpce': return undefined;
+    map.set('aws:SourceVpce', undefined);
     // aws:UserAgent – Used to check the requester's client app.
     // (see String Condition Operators)
-    case 'aws:UserAgent': return headers['user-agent'];
+    map.set('aws:UserAgent', headers['user-agent']);
     // aws:userid – Used to check the requester's unique user ID.
     // (see String Condition Operators)
-    case 'aws:userid': return requesterInfo.userid;
+    map.set('aws:userid', requesterInfo.userid);
     // aws:username – Used to check the requester's friendly user name.
     // (see String Condition Operators)
-    case 'aws:username': return requesterInfo.username;
+    map.set('aws:username', requesterInfo.username);
     // Possible condition keys for S3:
     // s3:x-amz-acl is acl request for bucket or object put request
-    case 's3:x-amz-acl': return headers['x-amz-acl'];
+    map.set('s3:x-amz-acl', headers['x-amz-acl']);
     // s3:x-amz-grant-PERMISSION (where permission can be:
     // read, write, read-acp, write-acp or full-control)
     // Value is the value of that header (ex. id of grantee)
-    case 's3:x-amz-grant-read': return headers['x-amz-grant-read'];
+    map.set('s3:x-amz-grant-read', headers['x-amz-grant-read']);
-    case 's3:x-amz-grant-write': return headers['x-amz-grant-write'];
+    map.set('s3:x-amz-grant-write', headers['x-amz-grant-write']);
-    case 's3:x-amz-grant-read-acp': return headers['x-amz-grant-read-acp'];
+    map.set('s3:x-amz-grant-read-acp', headers['x-amz-grant-read-acp']);
-    case 's3:x-amz-grant-write-acp': return headers['x-amz-grant-write-acp'];
+    map.set('s3:x-amz-grant-write-acp', headers['x-amz-grant-write-acp']);
-    case 's3:x-amz-grant-full-control': return headers['x-amz-grant-full-control'];
+    map.set('s3:x-amz-grant-full-control', headers['x-amz-grant-full-control']);
     // s3:x-amz-copy-source is x-amz-copy-source header if applicable on
     // a put object
-    case 's3:x-amz-copy-source': return headers['x-amz-copy-source'];
+    map.set('s3:x-amz-copy-source', headers['x-amz-copy-source']);
     // s3:x-amz-metadata-directive is x-amz-metadata-directive header if
     // applicable on a put object copy.  Determines whether metadata will
     // be copied from original object or replaced. Values or "COPY" or
     // "REPLACE".  Default is "COPY"
-    case 's3:x-amz-metadata-directive': return headers['metadata-directive'];
+    map.set('s3:x-amz-metadata-directive', headers['metadata-directive']);
     // s3:x-amz-server-side-encryption -- Used to require that object put
     // use server side encryption.  Value is the encryption algo such as
     // "AES256"
-    case 's3:x-amz-server-side-encryption': return headers['x-amz-server-side-encryption'];
+    map.set('s3:x-amz-server-side-encryption',
+        headers['x-amz-server-side-encryption']);
     // s3:x-amz-storage-class -- x-amz-storage-class header value
     // (STANDARD, etc.)
-    case 's3:x-amz-storage-class': return headers['x-amz-storage-class'];
+    map.set('s3:x-amz-storage-class', headers['x-amz-storage-class']);
     // s3:VersionId -- version id of object
-    case 's3:VersionId': return query.versionId;
+    map.set('s3:VersionId', query.versionId);
     // s3:LocationConstraint -- Used to restrict creation of bucket
     // in certain region.  Only applicable for CreateBucket
-    case 's3:LocationConstraint': return requestContext.getLocationConstraint();
+    map.set('s3:LocationConstraint', requestContext.getLocationConstraint());
     // s3:delimiter is delimiter for listing request
-    case 's3:delimiter': return query.delimiter;
+    map.set('s3:delimiter', query.delimiter);
     // s3:max-keys is max-keys for listing request
-    case 's3:max-keys': return query['max-keys'];
+    map.set('s3:max-keys', query['max-keys']);
     // s3:prefix is prefix for listing request
-    case 's3:prefix': return query.prefix;
+    map.set('s3:prefix', query.prefix);
     // s3 auth v4 additional condition keys
     // (See http://docs.aws.amazon.com/AmazonS3/latest/API/
     // bucket-policy-s3-sigv4-conditions.html)
     // s3:signatureversion -- Either "AWS" for v2 or
     // "AWS4-HMAC-SHA256" for v4
-    case 's3:signatureversion': return requestContext.getSignatureVersion();
+    map.set('s3:signatureversion', requestContext.getSignatureVersion());
     // s3:authType -- Method of authentication: either "REST-HEADER",
     // "REST-QUERY-STRING" or "POST"
-    case 's3:authType': return requestContext.getAuthType();
+    map.set('s3:authType', requestContext.getAuthType());
     // s3:signatureAge is the length of time, in milliseconds,
     // that a signature is valid in an authenticated request.  So,
     // can use this to limit the age to less than 7 days
-    case 's3:signatureAge': return requestContext.getSignatureAge();
+    map.set('s3:signatureAge', requestContext.getSignatureAge());
     // s3:x-amz-content-sha256 - Valid value is "UNSIGNED-PAYLOAD"
     // so can use this in a deny policy to deny any requests that do not
     // have a signed payload
-    case 's3:x-amz-content-sha256': return headers['x-amz-content-sha256'];
+    map.set('s3:x-amz-content-sha256', headers['x-amz-content-sha256']);
     // s3:ObjLocationConstraint is the location constraint set for an
     // object on a PUT request using the "x-amz-meta-scal-location-constraint"
     // header
-    case 's3:ObjLocationConstraint': return headers['x-amz-meta-scal-location-constraint'];
+    map.set('s3:ObjLocationConstraint',
-    case 'sts:ExternalId': return requestContext.getRequesterExternalId();
+        headers['x-amz-meta-scal-location-constraint']);
-    case 'keycloak:groups': return requesterInfo.keycloakGroup;
+    map.set('sts:ExternalId', requestContext.getRequesterExternalId());
-    case 'keycloak:roles': return requesterInfo.keycloakRole;
+    map.set('keycloak:groups', requesterInfo.keycloakGroup);
-    case 'iam:PolicyArn': return requestContext.getPolicyArn();
+    map.set('keycloak:roles', requesterInfo.keycloakRole);
+    map.set('iam:PolicyArn', requestContext.getPolicyArn());
     // s3:ExistingObjectTag - Used to check that existing object tag has
     // specific tag key and value. Extraction of correct tag key is done in CloudServer.
     // On first pass of policy evaluation, CloudServer information will not be included,
     // so evaluation should be skipped
-    case 's3:ExistingObjectTag':
+    map.set('s3:ExistingObjectTag', requestContext.getNeedTagEval() ? requestContext.getExistingObjTag() : undefined);
-        return requestContext.getNeedTagEval()
-            ? requestContext.getExistingObjTag() : undefined;
     // s3:RequestObjectTag - Used to limit putting object tags to specific
     // tag key and value. N/A here.
     // Requires information from CloudServer
     // On first pass of policy evaluation, CloudServer information will not be included,
     // so evaluation should be skipped
-    case 's3:RequestObjectTagKey':
+    map.set('s3:RequestObjectTagKey', requestContext.getNeedTagEval() ? requestContext.getRequestObjTags() : undefined);
-        return requestContext.getNeedTagEval()
-            ? requestContext.getRequestObjTags() : undefined;
     // s3:RequestObjectTagKeys - Used to limit putting object tags specific tag keys.
     // Requires information from CloudServer.
     // On first pass of policy evaluation, CloudServer information will not be included,
     // so evaluation should be skipped
-    case 's3:RequestObjectTagKeys':
+    map.set('s3:RequestObjectTagKeys',
-        return requestContext.getNeedTagEval() && requestContext.getRequestObjTags()
+        requestContext.getNeedTagEval() && requestContext.getRequestObjTags()
         ? getTagKeys(requestContext.getRequestObjTags()!)
-            : undefined;
+        : undefined,
-    // The maximum retention period is 100 years.
+    );
-    case 's3:object-lock-remaining-retention-days':
+    return map.get(key);
-        return requestContext.getObjectLockRetentionDays() || undefined;
+};
-    default:
-        return undefined;
-    }
-}
 
 
 // Wildcards are allowed in certain string comparison and arn comparisons
@@ -234,7 +231,7 @@ function convertToEpochTime(time: string | string[]) {
  * reference_policies_elements.html)
  * @return true if condition passes and false if not
  */
-export function convertConditionOperator(operator: string): boolean {
+export const convertConditionOperator = (operator: string): boolean => {
     // Policy Validator checks that the condition operator
     // is only one of these strings so should not have undefined
     // or security issue with object assignment
@@ -449,4 +446,4 @@ export function convertConditionOperator(operator: string): boolean {
         },
     };
     return operatorMap[operator];
-}
+};

lib/s3middleware/azureHelpers/ResultsCollector.ts

@@ -30,7 +30,7 @@ export default class ResultsCollector extends EventEmitter {
      * @emits ResultCollector#done
      * @emits ResultCollector#error
      */
-    pushResult(err: Error | null | undefined, subPartIndex: number) {
+    pushResult(err: Error | undefined, subPartIndex: number) {
         this._results.push({
             error: err,
             subPartIndex,

lib/s3middleware/azureHelpers/mpuUtils.ts

@@ -1,15 +1,11 @@
 import assert from 'assert';
 import * as crypto from 'crypto';
 import * as stream from 'stream';
-import azure from '@azure/storage-blob';
-
-import { RequestLogger } from 'werelogs';
-
 import ResultsCollector from './ResultsCollector';
 import SubStreamInterface from './SubStreamInterface';
 import * as objectUtils from '../objectUtils';
 import MD5Sum from '../MD5Sum';
-import errors, { ArsenalError } from '../../errors';
+import errors from '../../errors';
 
 export const splitter = '|';
 export const overviewMpuKey = 'azure_mpu';
@@ -65,7 +61,7 @@ export const getBlockId = (
     const paddedSubPart = padString(subPartIndex, 'subPart');
     const blockId = `${uploadId}${splitter}partNumber${paddedPartNumber}` +
         `${splitter}subPart${paddedSubPart}${splitter}`;
-    return Buffer.from(padString(blockId, 'part')).toString('base64');
+    return padString(blockId, 'part');
 };
 
 export const getSummaryPartId = (partNumber: number, eTag: string, size: number) => {
@@ -104,17 +100,10 @@ export const getSubPartIds = (
 ) => [...Array(part.numberSubParts).keys()].map(subPartIndex =>
         getBlockId(uploadId, part.partNumber, subPartIndex));
 
-type ErrorWrapperFn = (
+// TODO Better type this
-    s3Method: string,
-    azureMethod: string,
-    command: (client: azure.ContainerClient) => Promise<any>,
-    log: RequestLogger,
-    cb: (err: ArsenalError | null | undefined) => void,
-) => void
-
 export const putSinglePart = (
-    errorWrapperFn: ErrorWrapperFn,
+    errorWrapperFn: (first: string, second: string, third: any, log: any, cb: any) => void,
-    request: stream.Readable,
+    request: any,
     params: {
         bucketName: string;
         partNumber: number;
@@ -125,44 +114,44 @@ export const putSinglePart = (
     },
     dataStoreName: string,
     log: RequestLogger,
-    cb: (err: ArsenalError | null | undefined, dataStoreETag?: string, size?: number) => void,
+    cb: any,
 ) => {
     const { bucketName, partNumber, size, objectKey, contentMD5, uploadId }
         = params;
     const blockId = getBlockId(uploadId, partNumber, 0);
     const passThrough = new stream.PassThrough();
     const options = contentMD5
-        ? { transactionalContentMD5: objectUtils.getMD5Buffer(contentMD5) }
+        ? { useTransactionalMD5: true, transactionalContentMD5: contentMD5 }
         : {};
     request.pipe(passThrough);
-    return errorWrapperFn('uploadPart', 'createBlockFromStream', async client => {
+    return errorWrapperFn('uploadPart', 'createBlockFromStream',
-        try {
+        [blockId, bucketName, objectKey, passThrough, size, options,
-            const result = await client.getBlockBlobClient(objectKey)
+            (err: any | null, result: any) => {
-                .stageBlock(blockId, () => passThrough, size, options);
+                if (err) {
-            const md5 = result.contentMD5 || '';
-            const eTag = objectUtils.getHexMD5(md5);
-            return eTag
-        } catch (err: any) {
                     log.error('Error from Azure data backend uploadPart',
                         { error: err.message, dataStoreName });
                     if (err.code === 'ContainerNotFound') {
-                throw errors.NoSuchBucket;
+                        return cb(errors.NoSuchBucket);
                     }
                     if (err.code === 'InvalidMd5') {
-                throw errors.InvalidDigest;
+                        return cb(errors.InvalidDigest);
                     }
                     if (err.code === 'Md5Mismatch') {
-                throw errors.BadDigest;
+                        return cb(errors.BadDigest);
                     }
-            throw errors.InternalError.customizeDescription(
+                    return cb(errors.InternalError.customizeDescription(
-                `Error returned from Azure: ${err.message}`
+                        `Error returned from Azure: ${err.message}`),
                     );
                 }
-    }, log, cb);
+                const md5 = result.headers['content-md5'] || '';
+                const eTag = objectUtils.getHexMD5(md5);
+                return cb(null, eTag, size);
+            }], log, cb);
 };
 
-const putNextSubPart = (
+// TODO type this
-    errorWrapperFn: ErrorWrapperFn,
+export const putNextSubPart = (
+    errorWrapperFn: any,
     partParams: {
         uploadId: string;
         partNumber: number;
@@ -170,10 +159,11 @@ const putNextSubPart = (
         objectKey: string;
     },
     subPartInfo: { lastPartIndex: number; lastPartSize: number },
-    subPartStream: stream.Readable,
+    subPartStream: any,
     subPartIndex: number,
     resultsCollector: ResultsCollector,
     log: RequestLogger,
+    cb: any,
 ) => {
     const { uploadId, partNumber, bucketName, objectKey } = partParams;
     const subPartSize = getSubPartSize(
@@ -181,20 +171,14 @@ const putNextSubPart = (
     const subPartId = getBlockId(uploadId, partNumber,
         subPartIndex);
     resultsCollector.pushOp();
-    errorWrapperFn('uploadPart', 'createBlockFromStream', async client => {
+    errorWrapperFn('uploadPart', 'createBlockFromStream',
-        try {
+        [subPartId, bucketName, objectKey, subPartStream, subPartSize,
-            const result = await client.getBlockBlobClient(objectKey)
+            {}, err => resultsCollector.pushResult(err, subPartIndex)], log, cb);
-                .stageBlock(subPartId, () => subPartStream, subPartSize, {});
-            resultsCollector.pushResult(null, subPartIndex);
-        } catch (err: any) {
-            resultsCollector.pushResult(err, subPartIndex);
-        }
-    }, log, () => {});
 };
 
 export const putSubParts = (
-    errorWrapperFn: ErrorWrapperFn,
+    errorWrapperFn: any,
-    request: stream.Readable,
+    request: any,
     params: {
         uploadId: string;
         partNumber: number;
@@ -204,7 +188,7 @@ export const putSubParts = (
     },
     dataStoreName: string,
     log: RequestLogger,
-    cb: (err: ArsenalError | null | undefined, dataStoreETag?: string) => void,
+    cb: any,
 ) => {
     const subPartInfo = getSubPartInfo(params.size);
     const resultsCollector = new ResultsCollector();
@@ -243,13 +227,14 @@ export const putSubParts = (
         const totalLength = streamInterface.getTotalBytesStreamed();
         log.trace('successfully put subparts to Azure',
             { numberSubParts, totalLength });
-        hashedStream.on('hashed', () => cb(null, hashedStream.completedHash));
+        hashedStream.on('hashed', () => cb(null, hashedStream.completedHash,
+            totalLength));
 
         // in case the hashed event was already emitted before the
         // event handler was registered:
         if (hashedStream.completedHash) {
             hashedStream.removeAllListeners('hashed');
-            return cb(null, hashedStream.completedHash);
+            return cb(null, hashedStream.completedHash, totalLength);
         }
         return undefined;
     });
@@ -257,7 +242,7 @@ export const putSubParts = (
     const currentStream = streamInterface.getCurrentStream();
     // start first put to Azure before we start streaming the data
     putNextSubPart(errorWrapperFn, params, subPartInfo,
-        currentStream, 0, resultsCollector, log);
+        currentStream, 0, resultsCollector, log, cb);
 
     request.pipe(hashedStream);
     hashedStream.on('end', () => {
@@ -277,8 +262,8 @@ export const putSubParts = (
             }
             const { nextStream, subPartIndex } =
                 streamInterface.transitionToNextStream();
-            putNextSubPart(errorWrapperFn, params, subPartInfo, nextStream,
+            putNextSubPart(errorWrapperFn, params, subPartInfo,
-                subPartIndex, resultsCollector, log);
+                nextStream, subPartIndex, resultsCollector, log, cb);
             streamInterface.write(firstChunk);
         } else {
             streamInterface.write(data);

lib/s3middleware/lifecycleHelpers/LifecycleDateTime.ts

@@ -1,25 +1,19 @@
-import { scaleMsPerDay } from '../objectUtils';
+const oneDay = 24 * 60 * 60 * 1000; // Milliseconds in a day.
-const msInOneDay = 24 * 60 * 60 * 1000; // Milliseconds in a day.
 
 export default class LifecycleDateTime {
     _transitionOneDayEarlier?: boolean;
     _expireOneDayEarlier?: boolean;
-    _timeProgressionFactor?: number;
-    _scaledMsPerDay: number;
 
     constructor(params?: {
         transitionOneDayEarlier: boolean;
         expireOneDayEarlier: boolean;
-        timeProgressionFactor: number;
     }) {
         this._transitionOneDayEarlier = params?.transitionOneDayEarlier;
         this._expireOneDayEarlier = params?.expireOneDayEarlier;
-        this._timeProgressionFactor = params?.timeProgressionFactor || 1;
-        this._scaledMsPerDay = scaleMsPerDay(this._timeProgressionFactor);
     }
 
     getCurrentDate() {
-        const timeTravel = this._expireOneDayEarlier ? msInOneDay : 0;
+        const timeTravel = this._expireOneDayEarlier ? oneDay : 0;
         return Date.now() + timeTravel;
     }
 
@@ -31,7 +25,7 @@ export default class LifecycleDateTime {
     findDaysSince(date: Date) {
         const now = this.getCurrentDate();
         const diff = now - date.getTime();
-        return Math.floor(diff / this._scaledMsPerDay);
+        return Math.floor(diff / (1000 * 60 * 60 * 24));
     }
 
     /**
@@ -50,7 +44,7 @@ export default class LifecycleDateTime {
      * @return - The normalized transition timestamp
      */
     getTransitionTimestamp(
-        transition: { Date?: string; Days?: number },
+        transition: { Date?: string; Days?: number, NoncurrentDays?: number },
         lastModified: string,
     ) {
         if (transition.Date !== undefined) {
@@ -58,25 +52,13 @@ export default class LifecycleDateTime {
         }
         if (transition.Days !== undefined) {
             const lastModifiedTime = this.getTimestamp(lastModified);
-            const timeTravel = this._transitionOneDayEarlier ? -msInOneDay : 0;
+            const timeTravel = this._transitionOneDayEarlier ? -oneDay : 0;
-            return lastModifiedTime + (transition.Days * this._scaledMsPerDay) + timeTravel;
+            return lastModifiedTime + (transition.Days * oneDay) + timeTravel;
         }
-    }
-
-    /**
-     * Find the Unix time at which the non-current version transition should occur.
-     * @param transition - A non-current version transition from the lifecycle non-current version transitions
-     * @param lastModified - The object's last modified date
-     * @return - The normalized transition timestamp
-     */
-    getNCVTransitionTimestamp(
-        transition: { NoncurrentDays?: number },
-        lastModified: string,
-    ) {
         if (transition.NoncurrentDays !== undefined) {
             const lastModifiedTime = this.getTimestamp(lastModified);
-            const timeTravel = this._transitionOneDayEarlier ? -msInOneDay : 0;
+            const timeTravel = this._transitionOneDayEarlier ? -oneDay : 0;
-            return lastModifiedTime + (transition.NoncurrentDays * this._scaledMsPerDay) + timeTravel;
+            return lastModifiedTime + (transition.NoncurrentDays * oneDay) + timeTravel;
         }
     }
 }

lib/s3middleware/lifecycleHelpers/LifecycleUtils.ts

@@ -61,47 +61,6 @@ export default class LifecycleUtils {
         return trans1 > trans2 ? transition1 : transition2;
     }
 
-    /**
-    * Compare two non-current version transition rules and return the one that is most recent.
-    * @param params - The function parameters
-    * @param params.transition1 - A non-current version transition from the current rule
-    * @param params.transition2 - A non-current version transition from the previous rule
-    * @param params.lastModified - The object's last modified
-    * date
-    * @return The most applicable transition rule
-    */
-    compareNCVTransitions(params: {
-        lastModified: string;
-        transition1: any;
-        transition2?: any;
-    }): number | undefined;
-    compareNCVTransitions(params: {
-        lastModified: string;
-        transition1?: any;
-        transition2: any;
-    }): number | undefined;
-    compareNCVTransitions(params: {
-        lastModified: string;
-        transition1: any;
-        transition2: any;
-    }): number | undefined;
-    compareNCVTransitions(params: {
-        lastModified: string;
-        transition1?: any;
-        transition2?: any;
-    }) {
-        const { transition1, transition2, lastModified } = params;
-        if (transition1 === undefined) {
-            return transition2;
-        }
-        if (transition2 === undefined) {
-            return transition1;
-        }
-        const trans1 = this._datetime.getNCVTransitionTimestamp(transition1!, lastModified)!;
-        const trans2 = this._datetime.getNCVTransitionTimestamp(transition2!, lastModified)!;
-        return trans1 > trans2 ? transition1 : transition2;
-    }
-
     // TODO Fix This
     /**
     * Find the most relevant trantition rule for the given transitions array
@@ -140,36 +99,40 @@ export default class LifecycleUtils {
     }
 
     /**
-    * Find the most relevant non-current version transition rule for the given transitions array
+    * Find the most relevant trantition rule for the given transitions array
-    * and any previously stored non-current version transition from another rule.
+    * and any previously stored transition from another rule.
-    * @param params - The function parameters
+    * @param params.noncurrentTransitions - Array of lifecycle rule noncurrent
-    * @param params.transitions - Array of lifecycle non-current version transitions
+    * transitions
     * @param params.lastModified - The object's last modified
+    * @param params.currentDate - current date
+    * @param params.store - object containing applicable rules
     * date
-    * @return The most applicable non-current version transition rule
+    * @return The most applicable transition rule
     */
-    getApplicableNCVTransition(params: {
+    getApplicableNoncurrentVersionTransition(params: {
         store: any;
         currentDate: Date;
-        transitions: any[];
+        noncurrentTransitions: any[];
         lastModified: string;
     }) {
-        const { transitions, store, lastModified, currentDate } = params;
+        const { noncurrentTransitions, store, lastModified, currentDate } = params;
-        const transition = transitions.reduce((result, transition) => {
+        const ncvt = noncurrentTransitions.reduce((result, ncvt) => {
             const isApplicable = // Is the transition time in the past?
                 this._datetime.getTimestamp(currentDate) >=
-                this._datetime.getNCVTransitionTimestamp(transition, lastModified)!;
+                this._datetime.getTransitionTimestamp(ncvt, lastModified)!;
             if (!isApplicable) {
                 return result;
             }
-            return this.compareNCVTransitions({
+            return this.compareTransitions({
-                transition1: transition,
+                transition1: ncvt,
                 transition2: result,
                 lastModified,
             });
         }, undefined);
-        return this.compareNCVTransitions({
+
-            transition1: transition,
+
+        return this.compareTransitions({
+            transition1: ncvt,
             transition2: store.NoncurrentVersionTransition,
             lastModified,
         });
@@ -284,7 +247,6 @@ export default class LifecycleUtils {
                 // Names are long, so obscuring a bit
                 const ncve = 'NoncurrentVersionExpiration';
                 const ncd = 'NoncurrentDays';
-                const nncv = 'NewerNoncurrentVersions';
 
                 if (!store[ncve]) {
                     store[ncve] = {};
@@ -292,7 +254,6 @@ export default class LifecycleUtils {
                 if (!store[ncve][ncd] || rule[ncve][ncd] < store[ncve][ncd]) {
                     store[ncve].ID = rule.ID;
                     store[ncve][ncd] = rule[ncve][ncd];
-                    store[ncve][nncv] = rule[ncve][nncv];
                 }
             }
             if (rule.AbortIncompleteMultipartUpload
@@ -320,15 +281,16 @@ export default class LifecycleUtils {
             }
 
             const ncvt = 'NoncurrentVersionTransitions';
-            const hasNoncurrentVersionTransitions = Array.isArray(rule[ncvt]) && rule[ncvt].length > 0;
+            const hasNoncurrentTransitions = Array.isArray(rule[ncvt]) && rule[ncvt].length > 0;
-            if (hasNoncurrentVersionTransitions && this._supportedRules.includes('noncurrentVersionTransition')) {
+            if (hasNoncurrentTransitions && this._supportedRules.includes('noncurrentVersionTransitions')) {
-                store.NoncurrentVersionTransition = this.getApplicableNCVTransition({
+                store.NoncurrentVersionTransition = this.getApplicableNoncurrentVersionTransition({
-                    transitions: rule.NoncurrentVersionTransitions,
+                    noncurrentTransitions: rule.NoncurrentVersionTransitions,
                     lastModified: metadata.LastModified,
                     store,
                     currentDate,
                 });
             }
+
             return store;
         }, {});
         // Do not transition to a location where the object is already stored.

lib/s3middleware/objectUtils.ts

@@ -1,21 +1,5 @@
-const msInOneDay = 24 * 60 * 60 * 1000; // Milliseconds in a day.
+export const getHexMD5 = (base64MD5: WithImplicitCoercion<string>) =>
-
+    Buffer.from(base64MD5, 'base64').toString('hex');
-export const getMD5Buffer = (base64MD5: WithImplicitCoercion<string> | Uint8Array) =>
-    base64MD5 instanceof Uint8Array ? base64MD5 : Buffer.from(base64MD5, 'base64')
-
-export const getHexMD5 = (base64MD5: WithImplicitCoercion<string> | Uint8Array) =>
-    getMD5Buffer(base64MD5).toString('hex');
 
 export const getBase64MD5 = (hexMD5: WithImplicitCoercion<string>) =>
     Buffer.from(hexMD5, 'hex').toString('base64');
-
-
-/**
- * Calculates the number of scaled milliseconds per day based on the given time progression factor.
- * This function is intended for testing and simulation purposes only.
- * @param {number} timeProgressionFactor - The desired time progression factor for scaling.
- * @returns {number} The number of scaled milliseconds per day.
- * If the result is 0, the minimum value of 1 millisecond is returned.
- */
-export const scaleMsPerDay = (timeProgressionFactor: number): number =>
-    Math.round(msInOneDay / (timeProgressionFactor || 1)) || 1;

lib/s3middleware/tagging.ts

@@ -3,11 +3,6 @@ import * as werelogs from 'werelogs';
 import errors, { ArsenalError } from '../errors';
 import escapeForXml from './escapeForXml';
 
-export interface BucketTag {
-    Key: string;
-    Value: string;
-};
-
 const errorInvalidArgument = () => errors.InvalidArgument
     .customizeDescription('The header \'x-amz-tagging\' shall be ' +
   'encoded as UTF-8 then URLEncoded URL query parameters without ' +
@@ -37,15 +32,6 @@ export const _validator = {
         && tag.Key[0] !== undefined && tag.Value[0] !== undefined
         && typeof tag.Key[0] === 'string' && typeof tag.Value[0] === 'string',
 
-    // Allowed characters are letters, whitespace, and numbers, plus
-    // the following special characters: + - = . _ : /
-    // Maximum key length: 128 Unicode characters
-    // Maximum value length: 256 Unicode characters
-    validateTagObjectStructure: (tag: BucketTag) => tag
-        && Object.keys(tag).length === 2
-        && typeof tag.Key === 'string' && typeof tag.Value === 'string'
-        && tag.Key.length >= 1 && tag.Value.length >= 1,
-
     validateXMLStructure: (result: any) =>
         result && Object.keys(result).length === 1 &&
         result.Tagging &&
@@ -114,47 +100,12 @@ function _validateTags(tags: Array<{ Key: string[], Value: string[] }>) {
     }
     // not repeating keys
     if (tags.length > Object.keys(tagsResult).length) {
-        return errors.InvalidTag.customizeDescription(
+        return errors.InvalidTag.customizeDescription('Cannot provide ' +
-            'Cannot provide multiple Tags with the same key'
+        'multiple Tags with the same key');
-        );
     }
     return tagsResult;
 }
 
-/** areTagsValid - Validate bucket tags
-* @param tags - tags parsed from xml to be validated
-* @return result - true if the tags are valide, false otherwise
-*/
-export function areTagsValid(tags: Array<BucketTag>) {
-    if (tags.length === 0) {
-        return true;
-    }
-    // Maximum number of tags per resource: 50
-    if (tags.length > 50) {
-        return false;
-    }
-
-    const tagsResult = {};
-    for (const tag of tags) {
-        if (!_validator.validateTagObjectStructure(tag)) {
-            return false;
-        }
-        const { Key: key, Value: value } = tag;
-
-        const result = _validator.validateKeyValue(key, value);
-        if (result instanceof Error) {
-            return false;
-        }
-
-        tagsResult[key] = value;
-    }
-    // not repeating keys
-    if (tags.length > Object.keys(tagsResult).length) {
-        return false;
-    }
-    return true;
-}
-
 /** parseTagXml - Parse and validate xml body, returning callback with object
 * tags : { key: value}
 * @param xml - xml body to parse and validate

lib/s3routes/routes.ts

@@ -1,7 +1,4 @@
 import assert from 'assert';
-
-import { RequestLogger } from 'werelogs';
-
 import errors from '../errors';
 import routeGET from './routes/routeGET';
 import routePUT from './routes/routePUT';

lib/s3routes/routes/routeDELETE.ts

@@ -1,5 +1,3 @@
-import { RequestLogger } from 'werelogs';
-
 import * as routesUtils from '../routesUtils';
 import errors from '../../errors';
 import StatsClient from '../../metrics/StatsClient';
@@ -43,8 +41,6 @@ export default function routeDELETE(
             return call('bucketDeleteEncryption');
         } else if (query?.tagging !== undefined) {
             return call('bucketDeleteTagging');
-        } else if (query?.quota !== undefined) {
-            return call('bucketDeleteQuota');
         }
         call('bucketDelete');
     } else {

lib/s3routes/routes/routeGET.ts

@@ -1,5 +1,3 @@
-import { RequestLogger } from 'werelogs';
-
 import * as routesUtils from '../routesUtils';
 import errors from '../../errors';
 import * as http from 'http';
@@ -60,8 +58,6 @@ export default function routerGET(
             call('bucketGetEncryption');
         } else if (query.search !== undefined) {
             call('metadataSearch')
-        } else if (query.quota !== undefined) {
-            call('bucketGetQuota');
         } else {
             // GET bucket
             call('bucketGet');

lib/s3routes/routes/routeHEAD.ts

@@ -1,5 +1,3 @@
-import { RequestLogger } from 'werelogs';
-
 import * as routesUtils from '../routesUtils';
 import errors from '../../errors';
 import StatsClient from '../../metrics/StatsClient';

lib/s3routes/routes/routeOPTIONS.ts

@@ -1,5 +1,3 @@
-import { RequestLogger } from 'werelogs';
-
 import * as routesUtils from '../routesUtils';
 import errors from '../../errors';
 import * as http from 'http';

lib/s3routes/routes/routePOST.ts

@@ -1,5 +1,3 @@
-import { RequestLogger } from 'werelogs';
-
 import * as routesUtils from '../routesUtils';
 import errors from '../../errors';
 import * as http from 'http';

lib/s3routes/routes/routePUT.ts

@@ -1,5 +1,3 @@
-import { RequestLogger } from 'werelogs';
-
 import * as routesUtils from '../routesUtils';
 import errors from '../../errors';
 import * as http from 'http';
@@ -105,13 +103,6 @@ export default function routePUT(
                     return routesUtils.responseNoBody(err, corsHeaders,
                         response, 200, log);
                 });
-        } else if (query.quota !== undefined) {
-            api.callApiMethod('bucketUpdateQuota', request, response,
-                log, (err, resHeaders) => {
-                    routesUtils.statsReport500(err, statsClient);
-                    return routesUtils.responseNoBody(err, resHeaders, response,
-                        200, log);
-                });
         } else {
             // PUT bucket
             return api.callApiMethod('bucketPut', request, response, log,

lib/s3routes/routes/routeWebsite.ts

@@ -1,5 +1,3 @@
-import { RequestLogger } from 'werelogs';
-
 import * as routesUtils from '../routesUtils';
 import errors from '../../errors';
 import * as http from 'http';
@@ -29,11 +27,6 @@ export default function routerWebsite(
                 routesUtils.statsReport500(err, statsClient);
                 // request being redirected
                 if (redirectInfo) {
-                    if (err && redirectInfo.withError) {
-                        return routesUtils.redirectRequestOnError(err,
-                            'GET', redirectInfo, dataGetInfo, dataRetrievalParams,
-                            response, resMetaHeaders, log)
-                    }
                     // note that key might have been modified in websiteGet
                     // api to add index document
                     return routesUtils.redirectRequest(redirectInfo,
@@ -64,11 +57,6 @@ export default function routerWebsite(
             (err, resMetaHeaders, redirectInfo, key) => {
                 routesUtils.statsReport500(err, statsClient);
                 if (redirectInfo) {
-                    if (err && redirectInfo.withError) {
-                        return routesUtils.redirectRequestOnError(err,
-                            'HEAD', redirectInfo, null, dataRetrievalParams,
-                            response, resMetaHeaders, log)
-                    }
                     return routesUtils.redirectRequest(redirectInfo,
                         // TODO ARSN-217 encrypted does not exists in request.connection
                         // @ts-ignore

lib/s3routes/routesUtils.ts

@@ -1,16 +1,12 @@
 import * as url from 'url';
-import * as http from 'http';
-import { eachSeries } from 'async';
-
-import { RequestLogger } from 'werelogs';
-
 import * as ipCheck from '../ipCheck';
 import errors, { ArsenalError } from '../errors';
 import * as constants from '../constants';
+import { eachSeries } from 'async';
 import DataWrapper from '../storage/data/DataWrapper';
+import * as http from 'http';
 import StatsClient from '../metrics/StatsClient';
 import { objectKeyByteLimit } from '../constants';
-const jsutil = require('../jsutil');
 
 export type CallApiMethod = (
     methodName: string,
@@ -413,7 +409,6 @@ function retrieveData(
     return eachSeries(locations,
         (current, next) => data.get(current, response, log,
             (err: any, readable: http.IncomingMessage) => {
-                const cbOnce = jsutil.once(next);
                 // NB: readable is of IncomingMessage type
                 if (err) {
                     log.error('failed to get object', {
@@ -421,7 +416,7 @@ function retrieveData(
                         method: 'retrieveData',
                     });
                     _destroyResponse();
-                    return cbOnce(err);
+                    return next(err);
                 }
                 // response.isclosed is set by the S3 server. Might happen if
                 // the S3-client closes the connection before the first request
@@ -435,19 +430,19 @@ function retrieveData(
                     // @ts-ignore
                     responseErr.code = 'ResponseError';
                     responseErr.message = 'response closed by client request before all data sent';
-                    return cbOnce(responseErr);
+                    return next(responseErr);
                 }
                 // readable stream successfully consumed
                 readable.on('end', () => {
                     currentStream = null;
                     log.debug('readable stream end reached');
-                    return cbOnce();
+                    return next();
                 });
                 // errors on server side with readable stream
                 readable.on('error', err => {
                     log.error('error piping data from source');
                     _destroyResponse();
-                    return cbOnce(err);
+                    return next(err);
                 });
                 currentStream = readable;
                 return readable.pipe(response, { end: false });
@@ -694,8 +689,6 @@ export function streamUserErrorPage(
     log: RequestLogger,
 ) {
     setCommonResponseHeaders(corsHeaders, response, log);
-    response.setHeader('x-amz-error-code', err.message);
-    response.setHeader('x-amz-error-message', err.description);
     response.writeHead(err.code, { 'Content-type': 'text/html' });
     response.on('finish', () => {
         // TODO ARSN-216 Fix logger
@@ -878,7 +871,7 @@ export function redirectRequest(
     }
     let redirectLocation = justPath ? `/${redirectKey}` :
         `${redirectProtocol}://${redirectHostName}/${redirectKey}`;
-    if (!redirectKey && redirectLocationHeader && redirectLocation !== '/') {
+    if (!redirectKey && redirectLocationHeader) {
         // remove hanging slash
         redirectLocation = redirectLocation.slice(0, -1);
     }
@@ -895,52 +888,6 @@ export function redirectRequest(
     return undefined;
 }
 
-/**
- * redirectRequestOnError - redirect with an error body
- * @param err - arsenal error object
- * @param method - HTTP method
- * @param routingInfo - info for routing
- * @param [routingInfo.withError] - flag to differentiate from routing rules
- * @param [routingInfo.location] - location header
- * @param dataLocations --
- *   - array of locations to get streams from backend
- * @param retrieveDataParams - params to create instance of
- * data retrieval function
- * @param response - response object
- * @param corsHeaders - CORS-related response headers
- * @param log - Werelogs instance
- */
-export function redirectRequestOnError(
-    err: ArsenalError,
-    method: 'HEAD' | 'GET',
-    routingInfo: {
-        withError: true;
-        location: string;
-    },
-    dataLocations: { size: string | number }[] | null,
-    retrieveDataParams: any,
-    response: http.ServerResponse,
-    corsHeaders: { [key: string]: string },
-    log: RequestLogger,
-) {
-    response.setHeader('Location', routingInfo.location);
-
-    if (!dataLocations && err.is.Found) {
-        if (method === 'HEAD') {
-            return errorHeaderResponse(err, response, corsHeaders, log);
-        }
-        response.setHeader('x-amz-error-code', err.message);
-        response.setHeader('x-amz-error-message', err.description);
-        return errorHtmlResponse(err, false, '', response, corsHeaders, log);
-    }
-
-    // This is reached only for website error document (GET only)
-    const overrideErrorCode = err.flatten();
-    overrideErrorCode.code = 301;
-    return streamUserErrorPage(ArsenalError.unflatten(overrideErrorCode)!,
-        dataLocations || [], retrieveDataParams, response, corsHeaders, log);
-}
-
 /**
  * Get bucket name and object name from the request
  * @param request - http request object

lib/storage/data/DataWrapper.js

@@ -2,15 +2,13 @@ const async = require('async');
 const PassThrough = require('stream').PassThrough;
 const assert = require('assert');
 
-const { Logger } = require('werelogs');
-
 const errors = require('../../errors').default;
 const MD5Sum = require('../../s3middleware/MD5Sum').default;
 const NullStream = require('../../s3middleware/nullStream').default;
 const RelayMD5Sum = require('./utils/RelayMD5Sum');
 const backendUtils = require('./external/utils');
 const constants = require('../../constants');
-const BackendInfo = require('../../models/BackendInfo').default;
+const BackendInfo = require('../../models/BackendInfo');
 
 const externalBackends = constants.externalBackends;
 const skipError = new Error('skip');
@@ -29,7 +27,6 @@ class DataWrapper {
         this.metadata = metadata;
         this.locStorageCheckFn = locStorageCheckFn;
         this.vault = vault;
-        this.logger = new Logger('DataWrapper');
     }
 
     put(cipherBundle, value, valueSize, keyContext, backendInfo, log, cb) {
@@ -130,7 +127,7 @@ class DataWrapper {
     }
 
     delete(objectGetInfo, log, cb) {
-        const callback = cb || (() => {});
+        const callback = cb || log.end;
         const isMdModelVersion2 = typeof(objectGetInfo) === 'string';
         const isRequiredStringKey =
             constants.clientsRequireStringKey[this.implName];
@@ -179,9 +176,7 @@ class DataWrapper {
             newObjDataStoreName)) {
             return process.nextTick(cb);
         }
-        const delLog = this.logger.newRequestLoggerFromSerializedUids(
+        log.trace('initiating batch delete', {
-            log.getSerializedUids());
-        delLog.trace('initiating batch delete', {
             keys: locations,
             implName: this.implName,
             method: 'batchDelete',
@@ -207,21 +202,21 @@ class DataWrapper {
             return false;
         });
         if (shouldBatchDelete && keys.length > 1) {
-            return this.client.batchDelete(backendName, { keys }, delLog, cb);
+            return this.client.batchDelete(backendName, { keys }, log, cb);
         }
         return async.eachLimit(locations, 5, (loc, next) => {
-            process.nextTick(() => this.delete(loc, delLog, next));
+            process.nextTick(() => this.delete(loc, log, next));
         },
         err => {
             if (err) {
-                delLog.end().error('batch delete failed', { error: err });
+                log.end().error('batch delete failed', { error: err });
                 // deletion of non-existing objects result in 204
                 if (err.code === 404) {
                     return cb();
                 }
                 return cb(err);
             }
-            delLog.end().trace('batch delete successfully completed');
+            log.end().trace('batch delete successfully completed');
             return cb();
         });
     }
@@ -989,14 +984,13 @@ class DataWrapper {
         return this.client.delete(objectGetInfo, log.getSerializedUids(),
             err => {
                 if (err) {
-                    // TODO: sproxydclient and hdclient does not return standard Arsenal error yet.
+                    if (err.is.ObjNotFound) {
-                    if (err.code === 404) {
                         log.info('no such key in datastore', {
                             objectGetInfo,
                             implName: this.implName,
                             moreRetries: 'no',
                         });
-                        return cb(errors.ObjNotFound);
+                        return cb(err);
                     }
                     log.error('delete error from datastore', {
                         error: err,

lib/storage/data/LocationConstraintParser.js

@@ -1,10 +1,11 @@
-const { http, https } = require('httpagent');
+const https = require('https');
+const http = require('http');
 const url = require('url');
 const AWS = require('aws-sdk');
+const Sproxy = require('sproxydclient');
+const Hyperdrive = require('hdclient');
 const HttpsProxyAgent = require('https-proxy-agent');
 
-require("aws-sdk/lib/maintenance_mode_message").suppress = true;
-
 const constants = require('../../constants');
 const DataFileBackend = require('./file/DataFileInterface');
 const inMemory = require('./in_memory/datastore').backend;
@@ -25,13 +26,8 @@ function parseLC(config, vault) {
         if (locationObj.type === 'file') {
             clients[location] = new DataFileBackend(config);
         }
-        if (locationObj.type === 'vitastor') {
-            const VitastorBackend = require('./vitastor/VitastorBackend');
-            clients[location] = new VitastorBackend(location, locationObj.details);
-        }
         if (locationObj.type === 'scality') {
             if (locationObj.details.connector.sproxyd) {
-                const Sproxy = require('sproxydclient');
                 clients[location] = new Sproxy({
                     bootstrap: locationObj.details.connector
                         .sproxyd.bootstrap,
@@ -46,7 +42,6 @@ function parseLC(config, vault) {
                 });
                 clients[location].clientType = 'scality';
             } else if (locationObj.details.connector.hdclient) {
-                const Hyperdrive = require('hdclient');
                 clients[location] = new Hyperdrive.hdcontroller.HDProxydClient(
                     locationObj.details.connector.hdclient);
                 clients[location].clientType = 'scality';
@@ -82,8 +77,8 @@ function parseLC(config, vault) {
                 connectionAgent = new HttpsProxyAgent(options);
             } else {
                 connectionAgent = sslEnabled ?
-                    new https.Agent(httpAgentConfig, { maxSockets: false }) :
+                    new https.Agent(httpAgentConfig) :
-                    new http.Agent(httpAgentConfig, { maxSockets: false });
+                    new http.Agent(httpAgentConfig);
             }
             const httpOptions = { agent: connectionAgent, timeout: 0 };
             const s3Params = {

lib/storage/data/MultipleBackendGateway.js

@@ -5,7 +5,6 @@ const { parseTagFromQuery } = require('../../s3middleware/tagging');
 const { externalBackendHealthCheckInterval } = require('../../constants');
 const DataFileBackend = require('./file/DataFileInterface');
 const { createLogger, checkExternalBackend } = require('./external/utils');
-const jsutil = require('../../jsutil');
 
 class MultipleBackendGateway {
     constructor(clients, metadata, locStorageCheckFn) {
@@ -200,12 +199,11 @@ class MultipleBackendGateway {
     uploadPart(request, streamingV4Params, stream, size, location, key,
         uploadId, partNumber, bucketName, log, cb) {
         const client = this.clients[location];
-        const cbOnce = jsutil.once(cb);
 
         if (client.uploadPart) {
             return this.locStorageCheckFn(location, size, log, err => {
                 if (err) {
-                    return cbOnce(err);
+                    return cb(err);
                 }
                 return client.uploadPart(request, streamingV4Params, stream,
                     size, key, uploadId, partNumber, bucketName, log,
@@ -219,14 +217,14 @@ class MultipleBackendGateway {
                                     'metric following object PUT failure',
                                         { error: error.message });
                                     }
-                                    return cbOnce(err);
+                                    return cb(err);
                                 });
                         }
-                        return cbOnce(null, partInfo);
+                        return cb(null, partInfo);
                     });
             });
         }
-        return cbOnce();
+        return cb();
     }
 
     listParts(key, uploadId, location, bucketName, partNumberMarker, maxParts,

lib/storage/data/external/AwsClient.js

@@ -8,7 +8,6 @@ const getMetaHeaders =
 const { prepareStream } = require('../../../s3middleware/prepareStream');
 const { createLogger, logHelper, removeQuotes, trimXMetaPrefix } =
     require('./utils');
-const jsutil = require('../../../jsutil');
 
 const missingVerIdInternalError = errors.InternalError.customizeDescription(
     'Invalid state. Please ensure versioning is enabled ' +
@@ -318,11 +317,9 @@ class AwsClient {
     uploadPart(request, streamingV4Params, stream, size, key, uploadId,
         partNumber, bucketName, log, callback) {
         let hashedStream = stream;
-        const cbOnce = jsutil.once(callback);
-
         if (request) {
             const partStream = prepareStream(request, streamingV4Params,
-                this._vault, log, cbOnce);
+                this._vault, log, callback);
             hashedStream = new MD5Sum();
             partStream.pipe(hashedStream);
         }
@@ -336,7 +333,7 @@ class AwsClient {
             if (err) {
                 logHelper(log, 'error', 'err from data backend ' +
                     'on uploadPart', err, this._dataStoreName, this.clientType);
-                return cbOnce(errors.ServiceUnavailable
+                return callback(errors.ServiceUnavailable
                     .customizeDescription('Error returned from ' +
                     `${this.type}: ${err.message}`),
                 );
@@ -350,7 +347,7 @@ class AwsClient {
                 dataStoreName: this._dataStoreName,
                 dataStoreETag: noQuotesETag,
             };
-            return cbOnce(null, dataRetrievalInfo);
+            return callback(null, dataRetrievalInfo);
         });
     }
 

lib/storage/data/external/AzureClient.js

@@ -1,109 +1,62 @@
-const { BlobServiceClient, StorageSharedKeyCredential, AnonymousCredential } = require('@azure/storage-blob');
+const url = require('url');
-const { ClientSecretCredential } = require('@azure/identity');
+
+const azure = require('azure-storage');
 const errors = require('../../../errors').default;
-const azureMpuUtils = require('../../../s3middleware/azureHelpers/mpuUtils');
+const azureMpuUtils = require('../../../s3middleware/azureHelpers/mpuUtils').default;
 const { validateAndFilterMpuParts } =
     require('../../../s3middleware/processMpuParts');
 
 const { createLogger, logHelper, translateAzureMetaHeaders } =
     require('./utils');
-const objectUtils = require('../../../s3middleware/objectUtils');
 
 const constants = require('../../../constants');
 const packageVersion = require('../../../../package.json').version;
 
-class AzureClient {
+azure.Constants.USER_AGENT_PRODUCT_NAME = constants.productName;
-    static addQueryParams(endpoint, token) {
+azure.Constants.USER_AGENT_PRODUCT_VERSION = packageVersion;
-        const url = new URL(endpoint);
-        const query = token.startsWith('?') ? token.slice(1) : token;
-        if (!url.search) {
-            url.search = `?${query}`;
-        } else if (url.search === '?') {
-            url.search += query;
-        } else {
-            url.search += `&${query}`;
-        }
-        return url.toString();
-    }
 
+class AzureClient {
     constructor(config) {
         this._azureStorageEndpoint = config.azureStorageEndpoint;
         this._azureStorageCredentials = config.azureStorageCredentials;
         this._azureContainerName = config.azureContainerName;
-        const cred = (credentialsConfig => {
+        this._client = azure.createBlobService(
-            switch (credentialsConfig.authMethod) {
+            this._azureStorageCredentials.storageAccountName,
-            case 'client-secret':
+            this._azureStorageCredentials.storageAccessKey,
-                return new ClientSecretCredential(
+            this._azureStorageEndpoint);
-                    credentialsConfig.tenantId,
+        this._client.enableGlobalHttpAgent = true;
-                    credentialsConfig.clientId,
-                    credentialsConfig.clientKey,
-                );
-
-            case 'shared-access-signature':
-                this._azureStorageEndpoint = AzureClient.addQueryParams(
-                    this._azureStorageEndpoint, credentialsConfig.sasToken);
-                return new AnonymousCredential();
-
-            case 'shared-key':
-            default:
-                return new StorageSharedKeyCredential(
-                    credentialsConfig.storageAccountName,
-                    credentialsConfig.storageAccessKey,
-                );
-            }
-        })(this._azureStorageCredentials);
-        const proxyOptions = (() => {
-            if (!config.proxy || !config.proxy.url) {
-                return undefined;
-            }
-            // NOTE: config.proxy.certs is not supported
-            const parsedUrl = new URL(config.proxy.url);
-            return {
-                host: parsedUrl.host,
-                port: parsedUrl.port || 80,
-                username: parsedUrl.username || undefined,
-                password: parsedUrl.password || undefined,
-            };
-        })();
-        this._client = new BlobServiceClient(this._azureStorageEndpoint, cred, {
-            keepAliveOptions: {
-                enable: false, // Enable use of global HTTP agent
-            },
-            proxyOptions,
-            userAgentOptions: {
-                userAgentPrefix: `${constants.productName}/${packageVersion} `,
-            },
-        }).getContainerClient(this._azureContainerName);
         this._dataStoreName = config.dataStoreName;
         this._bucketMatch = config.bucketMatch;
+        if (config.proxy && config.proxy.url) {
+            const parsedUrl = url.parse(config.proxy.url);
+            if (!parsedUrl.port) {
+                parsedUrl.port = 80;
+            }
+            const proxyParams = parsedUrl;
+            if (config.proxy.certs) {
+                Object.assign(proxyParams, config.proxy.certs);
+            }
+            this._client.setProxy(proxyParams);
+        }
     }
 
-    /**
+    _errorWrapper(s3Method, azureMethod, args, log, cb) {
-     * Run azure method call.
-     * @param {string} [s3Method] S3 method name
-     * @param {string} [azureMethod] Azure method name
-     * @param {ErrorWrapper~Command} [command] Actual command to run
-     * @param {RequestLogger} [log] Logger
-     * @param {ErrorWrapper~Cb} [cb] The final callback
-     * @returns {void}
-     *
-     * @callback ErrorWrapper~Command
-     * @param {azure.ContainerClient} [client] Azure client to use
-     * @returns {Promise<any>}
-     *
-     * @callback ErrorWrapper~Cb
-     * @param {azure.ArsenalError} [arsenalErr] Error returned by the command
-     * @param {any} [result] Result of Azure SDK command
-     * @returns {void}
-     */
-    _errorWrapper(s3Method, azureMethod, command, log, cb) {
         if (log) {
-            log.info(`calling azure ${azureMethod} in ${s3Method}`);
+            log.info(`calling azure ${azureMethod}`);
+        }
+        try {
+            this._client[azureMethod].apply(this._client, args);
+        } catch (err) {
+            const error = errors.ServiceUnavailable;
+            if (log) {
+                log.error('error thrown by Azure Storage Client Library',
+                    { error: err.message, stack: err.stack, s3Method,
+                        azureMethod, dataStoreName: this._dataStoreName });
+            }
+            cb(error.customizeDescription('Error from Azure ' +
+                `method: ${azureMethod} on ${s3Method} S3 call: ` +
+                `${err.message}`));
         }
-        command(this._client).then(
-            result => cb(null, result),
-            cb,
-        );
     }
 
     _createAzureKey(requestBucketName, requestObjectKey,
@@ -166,32 +119,6 @@ class AzureClient {
         };
     }
 
-    /**
-     * Build Azure HTTP headers for content settings
-     * @param {object} [properties]                    The blob properties to set.
-     * @param {string} [properties.contentType]        The MIME content type of the blob.
-     *                                                 The default type is application/octet-stream.
-     * @param {string} [properties.contentEncoding]    The content encodings that have been applied
-     *                                                 to the blob.
-     * @param {string} [properties.contentLanguage]    The natural languages used by this resource.
-     * @param {string} [properties.cacheControl]       The blob's cache control.
-     * @param {string} [properties.contentDisposition] The blob's content disposition.
-     * @param {string} [properties.contentMD5]         The blob's MD5 hash.
-     * @returns {BlobHTTPHeaders} The headers
-     */
-    _getAzureContentSettingsHeaders(properties) {
-        return {
-            blobContentMD5: properties.contentMD5
-                ? objectUtils.getMD5Buffer(properties.contentMD5)
-                : undefined,
-            blobContentType: properties.contentType || undefined,
-            blobCacheControl: properties.cacheControl || undefined,
-            blobContentDisposition: properties.contentDisposition || undefined,
-            blobContentEncoding: properties.contentEncoding || undefined,
-            blobContentLanguage: properties.blobContentLanguage || undefined,
-        };
-    }
-
     put(stream, size, keyContext, reqUids, callback, skey, metadata) {
         const log = createLogger(reqUids);
         // before blob is put, make sure there is no ongoing MPU with same key
@@ -207,59 +134,50 @@ class AzureClient {
                 const options = {
                     metadata: translateAzureMetaHeaders(keyContext.metaHeaders,
                         keyContext.tagging),
-                    blobHTTPHeaders: this._getAzureContentSettingsHeaders(
+                    contentSettings: {
-                        keyContext || {}),
+                        contentType: keyContext.contentType || undefined,
+                        cacheControl: keyContext.cacheControl || undefined,
+                        contentDisposition: keyContext.contentDisposition ||
+                        undefined,
+                        contentEncoding: keyContext.contentEncoding || undefined,
+                    },
                 };
                 if (size === 0) {
-                    return this._errorWrapper('put', 'uploadData', async client => {
+                    return this._errorWrapper('put', 'createBlockBlobFromText',
-                        try {
+                        [this._azureContainerName, azureKey, '', options,
-                            await client.getBlockBlobClient(azureKey).upload('', 0, options);
+                            err => {
-                            return azureKey;
+                                if (err) {
-                        } catch (err) {
+                                    logHelper(log, 'error', 'err from Azure PUT data ' +
-                            logHelper(log, 'error', 'err from Azure PUT data backend',
+                                'backend', err, this._dataStoreName);
-                                err, this._dataStoreName);
+                                    return callback(errors.ServiceUnavailable
-                            throw errors.ServiceUnavailable.customizeDescription(
+                                        .customizeDescription('Error returned from ' +
-                                `Error returned from Azure: ${err.message}`);
+                                `Azure: ${err.message}`));
                                 }
-                    }, log, callback);
+                                return callback(null, azureKey);
+                            }], log, callback);
                 }
-                return this._errorWrapper('put', 'createBlockBlobFromStream', async client => {
+                return this._errorWrapper('put', 'createBlockBlobFromStream',
-                    try {
+                    [this._azureContainerName, azureKey, stream, size, options,
-                        await client.getBlockBlobClient(azureKey).upload(() => stream, size, options);
+                        err => {
-                        return azureKey;
+                            if (err) {
-                    } catch (err) {
+                                logHelper(log, 'error', 'err from Azure PUT data ' +
-                        logHelper(log, 'error', 'err from Azure PUT data backend',
+                            'backend', err, this._dataStoreName);
-                            err, this._dataStoreName);
+                                return callback(errors.ServiceUnavailable
-                        throw errors.ServiceUnavailable.customizeDescription(
+                                    .customizeDescription('Error returned from ' +
-                            `Error returned from Azure: ${err.message}`);
+                            `Azure: ${err.message}`));
                             }
-                }, log, callback);
+                            return callback(null, azureKey);
+                        }], log, callback);
             });
     }
 
-    /**
-     * Build BlobRequestConditions from azureStreamingOptions
-     * @param {object} [objectGetInfoOptions]   Azure streaming options
-     * @param {object} [objectGetInfoOptions.accessConditions] Access conditions
-     * @param {Date}   [objectGetInfoOptions.accessConditions.DateUnModifiedSince] Filter objects not
-     *                                  modified since that date.
-     * @returns {BlobRequestConditions} Request conditions
-     */
-    _getAzureConditions(objectGetInfoOptions) {
-        const accessConditions = objectGetInfoOptions.accessConditions || {};
-        return {
-            ifUnmodifiedSince: accessConditions.DateUnModifiedSince || undefined,
-        };
-    }
-
     head(objectGetInfo, reqUids, callback) {
         const log = createLogger(reqUids);
-        const { key } = objectGetInfo;
+        const { key, azureStreamingOptions } = objectGetInfo;
-        return this._errorWrapper('head', 'getBlobProperties', async client => {
+        return this._errorWrapper('head', 'getBlobProperties',
-            try {
+            [this._azureContainerName, key, azureStreamingOptions,
-                const data = await client.getBlockBlobClient(key).getProperties();
+                (err, data) => {
-                return data;
+                    if (err) {
-            } catch (err) {
                         let logLevel;
                         let retError;
                         if (err.code === 'NotFound') {
@@ -267,46 +185,42 @@ class AzureClient {
                             retError = errors.LocationNotFound;
                         } else {
                             logLevel = 'error';
-                    retError = errors.ServiceUnavailable.customizeDescription(
+                            retError = errors.ServiceUnavailable
+                                .customizeDescription(
                                     `Error returned from Azure: ${err.message}`);
                         }
                         logHelper(log, logLevel, 'err from Azure HEAD data backend',
                             err, this._dataStoreName);
-                throw retError;
+                        return callback(retError);
                     }
-        }, log, callback);
+                    return callback(null, data);
+                }], log, callback);
     }
 
     get(objectGetInfo, range, reqUids, callback) {
         const log = createLogger(reqUids);
+        // for backwards compatibility
         const { key, response, azureStreamingOptions } = objectGetInfo;
-        let rangeStart = 0;
+        let streamingOptions;
-        let rangeEnd = undefined;
         if (azureStreamingOptions) {
             // option coming from api.get()
-            rangeStart = (typeof azureStreamingOptions.rangeStart === 'string')
+            streamingOptions = azureStreamingOptions;
-                ? parseInt(azureStreamingOptions.rangeStart, 10)
-                : azureStreamingOptions.rangeStart;
-            rangeEnd = (typeof azureStreamingOptions.rangeEnd === 'string')
-                ? parseInt(azureStreamingOptions.rangeEnd, 10)
-                : azureStreamingOptions.rangeEnd;
         } else if (range) {
             // option coming from multipleBackend.upload()
-            rangeStart = (typeof range[0] === 'number') ? range[0] : 0;
+            const rangeStart = (typeof range[0] === 'number') ? range[0].toString() : undefined;
-            rangeEnd = range[1] || undefined;
+            const rangeEnd = range[1] ? range[1].toString() : undefined;
+            streamingOptions = { rangeStart, rangeEnd };
         }
-        this._errorWrapper('get', 'getBlobToStream', async client => {
+        this._errorWrapper('get', 'getBlobToStream',
-            try {
+            [this._azureContainerName, key, response, streamingOptions,
-                const rsp = await client.getBlockBlobClient(key)
+                err => {
-                    .download(rangeStart, rangeEnd - rangeStart + 1 || undefined);
+                    if (err) {
-                rsp.readableStreamBody.pipe(response);
-                return response;
-            } catch (err) {
                         logHelper(log, 'error', 'err from Azure GET data backend',
                             err, this._dataStoreName);
-                throw errors.ServiceUnavailable;
+                        return callback(errors.ServiceUnavailable);
                     }
-        }, log, callback);
+                    return callback(null, response);
+                }], log, callback);
     }
 
     delete(objectGetInfo, reqUids, callback) {
@@ -316,46 +230,44 @@ class AzureClient {
             objectGetInfo.key;
         let options;
         if (typeof objectGetInfo === 'object') {
-            options = {
+            options = objectGetInfo.options;
-                conditions: this._getAzureConditions(objectGetInfo.options || {}),
-            };
         }
-        return this._errorWrapper('delete', 'deleteBlobIfExists', async client => {
+        return this._errorWrapper('delete', 'deleteBlobIfExists',
-            try {
+            [this._azureContainerName, key, options,
-                await client.getBlockBlobClient(key).deleteIfExists(options);
+                err => {
-            } catch (err) {
+                    if (err && err.statusCode === 412) {
-                if (err.statusCode === 412) {
+                        return callback(errors.PreconditionFailed);
-                    throw errors.PreconditionFailed;
                     }
+                    if (err) {
                         const log = createLogger(reqUids);
-                logHelper(log, 'error', 'error deleting object from Azure datastore',
+                        logHelper(log, 'error', 'error deleting object from ' +
-                    err, this._dataStoreName);
+                        'Azure datastore', err, this._dataStoreName);
-                throw errors.ServiceUnavailable.customizeDescription(
+                        return callback(errors.ServiceUnavailable
-                    `Error returned from Azure: ${err.message}`);
+                            .customizeDescription('Error returned from ' +
+                        `Azure: ${err.message}`));
                     }
-        }, log, callback);
+                    return callback();
+                }], log, callback);
     }
 
     healthcheck(location, callback, flightCheckOnStartUp) {
         const azureResp = {};
-        this._errorWrapper('healthcheck', 'checkAzureHealth', async client => {
+        const healthCheckAction = flightCheckOnStartUp ?
-            try {
+            'createContainerIfNotExists' : 'doesContainerExist';
-                if (flightCheckOnStartUp) {
+        this._errorWrapper('checkAzureHealth', healthCheckAction,
-                    await client.createIfNotExists();
+            [this._azureContainerName, err => {
-                } else {
+                /* eslint-disable no-param-reassign */
-                    await client.exists();
+                if (err) {
+                    azureResp[location] = { error: err.message,
+                        external: true };
+                    return callback(null, azureResp);
                 }
                 azureResp[location] = {
-                    message: 'Congrats! You can access the Azure storage account',
+                    message:
+                    'Congrats! You can access the Azure storage account',
                 };
-            } catch (err) {
+                return callback(null, azureResp);
-                azureResp[location] = {
+            }], null, callback);
-                    error: err.message,
-                    external: true,
-                };
-            }
-            return azureResp;
-        }, null, callback);
     }
 
     uploadPart(request, streamingV4Params, partStream, size, key, uploadId,
@@ -409,7 +321,9 @@ class AzureClient {
     completeMPU(jsonList, mdInfo, key, uploadId, bucket, metaHeaders,
         contentSettings, tagging, log, callback) {
         const azureKey = this._createAzureKey(bucket, key, this._bucketMatch);
-        const commitList = jsonList.uncommittedBlocks || [];
+        const commitList = {
+            UncommittedBlocks: jsonList.uncommittedBlocks || [],
+        };
         let filteredPartsObj;
         if (!jsonList.uncommittedBlocks) {
             const { storedParts, mpuOverviewKey, splitter } = mdInfo;
@@ -422,56 +336,60 @@ class AzureClient {
                 // part.locations is always array of 1, which contains data info
                 const subPartIds =
                     azureMpuUtils.getSubPartIds(part.locations[0], uploadId);
-                commitList.push(...subPartIds);
+                commitList.UncommittedBlocks.push(...subPartIds);
             });
         }
         const options = {
-            blobHTTPHeaders: this._getAzureContentSettingsHeaders(contentSettings || {}),
+            contentSettings,
             metadata: translateAzureMetaHeaders(metaHeaders || {}, tagging),
         };
-        return this._errorWrapper('completeMPU', 'commitBlocks', async client => {
+        return this._errorWrapper('completeMPU', 'commitBlocks',
-            try {
+            [this._azureContainerName, azureKey, commitList, options,
-                await client.getBlockBlobClient(azureKey).commitBlockList(commitList, options);
+                err => {
-                return {
+                    if (err) {
+                        logHelper(log, 'error', 'err completing MPU on Azure ' +
+                        'datastore', err, this._dataStoreName);
+                        return callback(errors.ServiceUnavailable
+                            .customizeDescription('Error returned from ' +
+                        `Azure: ${err.message}`));
+                    }
+                    const completeObjData = {
                         key: azureKey,
                         filteredPartsObj,
                     };
-            } catch (err) {
+                    return callback(null, completeObjData);
-                logHelper(log, 'error', 'err completing MPU on Azure datastore',
+                }], log, callback);
-                    err, this._dataStoreName);
-                throw errors.ServiceUnavailable.customizeDescription(
-                    `Error returned from Azure: ${err.message}`);
-            }
-        }, log, callback);
     }
 
     objectPutTagging(key, bucket, objectMD, log, callback) {
         const azureKey = this._createAzureKey(bucket, key, this._bucketMatch);
         const azureMD = this._getMetaHeaders(objectMD);
         azureMD.tags = JSON.stringify(objectMD.tags);
-        this._errorWrapper('objectPutTagging', 'setBlobMetadata', async client => {
+        this._errorWrapper('objectPutTagging', 'setBlobMetadata',
-            try {
+            [this._azureContainerName, azureKey, azureMD,
-                await client.getBlockBlobClient(azureKey).setMetadata(azureMD);
+                err => {
-            } catch (err) {
+                    if (err) {
-                logHelper(log, 'error', 'err putting object tags to Azure backend',
+                        logHelper(log, 'error', 'err putting object tags to ' +
-                    err, this._dataStoreName);
+                        'Azure backend', err, this._dataStoreName);
-                throw errors.ServiceUnavailable;
+                        return callback(errors.ServiceUnavailable);
                     }
-        }, log, callback);
+                    return callback();
+                }], log, callback);
     }
 
     objectDeleteTagging(key, bucketName, objectMD, log, callback) {
         const azureKey = this._createAzureKey(bucketName, key, this._bucketMatch);
         const azureMD = this._getMetaHeaders(objectMD);
-        this._errorWrapper('objectDeleteTagging', 'setBlobMetadata', async client => {
+        this._errorWrapper('objectDeleteTagging', 'setBlobMetadata',
-            try {
+            [this._azureContainerName, azureKey, azureMD,
-                await client.getBlockBlobClient(azureKey).setMetadata(azureMD);
+                err => {
-            } catch (err) {
+                    if (err) {
-                logHelper(log, 'error', 'err putting object tags to Azure backend',
+                        logHelper(log, 'error', 'err putting object tags to ' +
-                    err, this._dataStoreName);
+                        'Azure backend', err, this._dataStoreName);
-                throw errors.ServiceUnavailable;
+                        return callback(errors.ServiceUnavailable);
                     }
-        }, log, callback);
+                    return callback();
+                }], log, callback);
     }
 
     copyObject(request, destLocationConstraintName, sourceKey,
@@ -488,50 +406,54 @@ class AzureClient {
 
         let options;
         if (storeMetadataParams.metaHeaders) {
-            options = {
+            options = { metadata:
-                metadata: translateAzureMetaHeaders(storeMetadataParams.metaHeaders),
+            translateAzureMetaHeaders(storeMetadataParams.metaHeaders) };
-            };
         }
 
-        // TODO: should we use syncCopyBlob() instead? or use poller.pollUntilDone() to wait until complete?
+        this._errorWrapper('copyObject', 'startCopyBlob',
-        this._errorWrapper('copyObject', 'startCopyBlob', async client => {
+            [`${this._azureStorageEndpoint}` +
-            let res;
+                `${sourceContainerName}/${sourceKey}`,
-            try {
+            this._azureContainerName, destAzureKey, options,
-                const poller = await client.getBlockBlobClient(destAzureKey).beginCopyFromURL(
+            (err, res) => {
-                    `${this._azureStorageEndpoint}${sourceContainerName}/${sourceKey}`,
+                if (err) {
-                    options,
+                    if (err.code === 'CannotVerifyCopySource') {
+                        logHelper(log, 'error', 'Unable to access ' +
+                        `${sourceContainerName} Azure Container`, err,
+                        this._dataStoreName);
+                        return callback(errors.AccessDenied
+                            .customizeDescription('Error: Unable to access ' +
+                        `${sourceContainerName} Azure Container`),
                         );
-
-                res = poller.getOperationState().result;
-                if (res.copyProgress !== 'pending') {
-                    return destAzureKey;
                     }
-            } catch (err) {
+                    logHelper(log, 'error', 'error from data backend on ' +
-                if (err.code === 'CannotVerifyCopySource') { // TOOD: may use a constant (or type) from SDK ??
+                    'copyObject', err, this._dataStoreName);
-                    logHelper(log, 'error',
+                    return callback(errors.ServiceUnavailable
-                        `Unable to access ${sourceContainerName} Azure Container`,
+                        .customizeDescription('Error returned from ' +
+                    `AWS: ${err.message}`),
+                    );
+                }
+                if (res.copy.status === 'pending') {
+                    logHelper(log, 'error', 'Azure copy status is pending',
                         err, this._dataStoreName);
-                    throw errors.AccessDenied.customizeDescription(
+                    const copyId = res.copy.id;
-                        `Error: Unable to access ${sourceContainerName} Azure Container`);
+                    this._client.abortCopyBlob(this._azureContainerName,
+                        destAzureKey, copyId, err => {
+                            if (err) {
+                                logHelper(log, 'error', 'error from data backend ' +
+                            'on abortCopyBlob', err, this._dataStoreName);
+                                return callback(errors.ServiceUnavailable
+                                    .customizeDescription('Error returned from ' +
+                            `AWS on abortCopyBlob: ${err.message}`),
+                                );
                             }
-                logHelper(log, 'error', 'error from data backend on copyObject',
+                            return callback(errors.InvalidObjectState
-                    err, this._dataStoreName);
+                                .customizeDescription('Error: Azure copy status was ' +
-                throw errors.ServiceUnavailable.customizeDescription(
+                        'pending. It has been aborted successfully'),
-                    `Error returned from AWS: ${err.message}`);
+                            );
+                        });
                 }
-
+                return callback(null, destAzureKey);
-            logHelper(log, 'error', 'Azure copy status is pending', {}, this._dataStoreName);
+            }], log, callback);
-            try {
-                await client.getBlockBlobClient(destAzureKey).abortCopyFromURL(res.copyId);
-            } catch (err) {
-                logHelper(log, 'error', 'error from data backend on abortCopyBlob',
-                    err, this._dataStoreName);
-                throw errors.ServiceUnavailable.customizeDescription(
-                    `Error returned from AWS on abortCopyBlob: ${err.message}`);
-            }
-            throw errors.InvalidObjectState.customizeDescription(
-                'Error: Azure copy status was pending. It has been aborted successfully');
-        }, log, callback);
     }
 }