fixup: arsenal package

lib/api/api.js

@@ -1,5 +1,6 @@
 const { auth, errors, policies } = require('arsenal');
 const async = require('async');
+const busboy = require('@fastify/busboy');
 
 const bucketDelete = require('./bucketDelete');
 const bucketDeleteCors = require('./bucketDeleteCors');
@@ -52,6 +53,7 @@ const objectGetRetention = require('./objectGetRetention');
 const objectGetTagging = require('./objectGetTagging');
 const objectHead = require('./objectHead');
 const objectPut = require('./objectPut');
+const objectPost = require('./objectPost');
 const objectPutACL = require('./objectPutACL');
 const objectPutLegalHold = require('./objectPutLegalHold');
 const objectPutTagging = require('./objectPutTagging');
@@ -112,7 +114,7 @@ const api = {
 
         // no need to check auth on website or cors preflight requests
         if (apiMethod === 'websiteGet' || apiMethod === 'websiteHead' ||
-        apiMethod === 'corsPreflight') {
+            apiMethod === 'corsPreflight') {
             request.actionImplicitDenies = false;
             return this[apiMethod](request, log, callback);
         }
@@ -158,7 +160,7 @@ const api = {
                 // second item checks s3:GetObject(Version)Tagging action
                 if (!authResults[1].isAllowed) {
                     log.trace('get tagging authorization denial ' +
-                    'from Vault');
+                        'from Vault');
                     returnTagCount = false;
                 }
             } else {
@@ -184,8 +186,114 @@ const api = {
             }
             return { returnTagCount, isImplicitDeny };
         }
+        let bb;
+        let fileEventData = null;
+
+        if (apiMethod === 'objectPost') {
+            bb = busboy({ headers: request.headers });
+        }
 
         return async.waterfall([
+            next => {
+                if (apiMethod === 'objectPut' || apiMethod === 'objectPutPart') {
+                    return next(null);
+                }
+                if (apiMethod === 'objectPost' && request.headers['content-type'].includes('multipart/form-data')) {
+                    writeContinue(request, response);
+
+                    let algoOK = false;
+                    let credOK = false;
+                    let dateOK = false;
+                    let sigOK = false;
+                    let policyOK = false;
+                    request.formData = {};
+                    let totalFieldSize = 0;
+                    const MAX_FIELD_SIZE = 20 * 1024; // 20KB
+                    bb.on('field', (fieldname, val) => {
+                        totalFieldSize += Buffer.byteLength(val, 'utf8');
+                        if (totalFieldSize > MAX_FIELD_SIZE) {
+                            const err = errors.MaxPostPreDataLengthExceeded;
+                            bb.emit('error', err);
+                        }
+                        // Convert fieldname to lowercase for case-insensitive comparison
+                        const lowerFieldname = fieldname.toLowerCase();
+                        request.formData[lowerFieldname] = val;
+                        if (lowerFieldname === 'x-amz-algorithm') {
+                            algoOK = true;
+                        }
+                        if (lowerFieldname === 'x-amz-credential') {
+                            credOK = true;
+                        }
+                        if (lowerFieldname === 'x-amz-date') {
+                            dateOK = true;
+                        }
+                        if (lowerFieldname === 'x-amz-signature') {
+                            sigOK = true;
+                        }
+                        if (lowerFieldname === 'policy') {
+                            policyOK = true;
+                        }
+                    });
+
+                    bb.on('file', (fieldname, file, filename, encoding, mimetype) => {
+                        fileEventData = { fieldname, file, filename, encoding, mimetype };
+                        if (algoOK && credOK && dateOK && sigOK && policyOK) {
+                            return next(null);
+                        }
+                        return undefined;
+                    });
+
+                    bb.on('finish', () => {
+                        // if fields are found but no file, continue
+                        if ((algoOK && credOK && dateOK && sigOK && policyOK) && !fileEventData) {
+                            return next(null);
+                        }
+                        return undefined;
+                    });
+
+                    bb.on('error', (err) => {
+                        log.trace('Error processing form data:', {
+                            error: err,
+                        });
+                        request.unpipe(bb);
+                        return next(err);
+                    });
+
+                    request.pipe(bb);
+                } else {
+                    // issue 100 Continue to the client
+                    writeContinue(request, response);
+                    const MAX_POST_LENGTH = request.method === 'POST' ?
+                        1024 * 1024 : 1024 * 1024 / 2; // 1 MB or 512 KB
+                    const post = [];
+                    let postLength = 0;
+                    request.on('data', chunk => {
+                        postLength += chunk.length;
+                        // Sanity check on post length
+                        if (postLength <= MAX_POST_LENGTH) {
+                            post.push(chunk);
+                        }
+                    });
+
+                    request.on('error', err => {
+                        log.trace('error receiving request', {
+                            error: err,
+                        });
+                        return next(errors.InternalError);
+                    });
+
+                    request.on('end', () => {
+                        if (postLength > MAX_POST_LENGTH) {
+                            log.error('body length is too long for request type',
+                                { postLength });
+                            return next(errors.InvalidRequest);
+                        }
+                        request.post = Buffer.concat(post, postLength).toString();
+                        return next(null);
+                    });
+                }
+                return undefined;
+            },
             next => auth.server.doAuth(
                 request, log, (err, userInfo, authorizationResults, streamingV4Params) => {
                     if (err) {
@@ -200,41 +308,7 @@ const api = {
                     authNames.userName = userInfo.getIAMdisplayName();
                 }
                 log.addDefaultFields(authNames);
-                if (apiMethod === 'objectPut' || apiMethod === 'objectPutPart') {
-                    return next(null, userInfo, authorizationResults, streamingV4Params);
-                }
-                // issue 100 Continue to the client
-                writeContinue(request, response);
-                const MAX_POST_LENGTH = request.method === 'POST' ?
-                      1024 * 1024 : 1024 * 1024 / 2; // 1 MB or 512 KB
-                const post = [];
-                let postLength = 0;
-                request.on('data', chunk => {
-                    postLength += chunk.length;
-                    // Sanity check on post length
-                    if (postLength <= MAX_POST_LENGTH) {
-                        post.push(chunk);
-                    }
-                });
-
-                request.on('error', err => {
-                    log.trace('error receiving request', {
-                        error: err,
-                    });
-                    return next(errors.InternalError);
-                });
-
-                request.on('end', () => {
-                    if (postLength > MAX_POST_LENGTH) {
-                        log.error('body length is too long for request type',
-                                  { postLength });
-                        return next(errors.InvalidRequest);
-                    }
-                    // Convert array of post buffers into one string
-                    request.post = Buffer.concat(post, postLength).toString();
-                    return next(null, userInfo, authorizationResults, streamingV4Params);
-                });
-                return undefined;
+                return next(null, userInfo, authorizationResults, streamingV4Params);
             },
             // Tag condition keys require information from CloudServer for evaluation
             (userInfo, authorizationResults, streamingV4Params, next) => tagConditionKeyAuth(
@@ -271,6 +345,15 @@ const api = {
                     return acc;
                 }, {});
             }
+            if (apiMethod === 'objectPost') {
+                request._response = response;
+                if (fileEventData) {
+                    request.fileEventData = fileEventData;
+                    request.headers['content-type'] = fileEventData.mimetype;
+                }
+                return this[apiMethod](userInfo, request, streamingV4Params,
+                    log, callback, authorizationResults);
+            }
             if (apiMethod === 'objectPut' || apiMethod === 'objectPutPart') {
                 request._response = response;
                 return this[apiMethod](userInfo, request, streamingV4Params,
@@ -337,6 +420,7 @@ const api = {
     objectCopy,
     objectHead,
     objectPut,
+    objectPost,
     objectPutACL,
     objectPutLegalHold,
     objectPutTagging,

lib/api/apiUtils/object/createAndStoreObject.js

@@ -210,8 +210,18 @@ function createAndStoreObject(bucketName, bucketMD, objectKey, objMD, authInfo,
                 metadataStoreParams.contentMD5 = constants.emptyFileMd5;
                 return next(null, null, null);
             }
-            return dataStore(objectKeyContext, cipherBundle, request, size,
-                    streamingV4Params, backendInfo, log, next);
+            // Object Post receives a file stream.
+            //  This is to be used to store data instead of the request stream itself.
+
+            let stream;
+
+            if (request.apiMethod === 'objectPost') {
+                stream = request.fileEventData ? request.fileEventData.file : undefined;
+            } else {
+                stream = request;
+            }
+
+            return dataStore(objectKeyContext, cipherBundle, stream, size, streamingV4Params, backendInfo, log, next);
         },
         function processDataResult(dataGetInfo, calculatedHash, next) {
             if (dataGetInfo === null || dataGetInfo === undefined) {

lib/api/apiUtils/object/prepareStream.js

@@ -13,7 +13,7 @@ const V4Transform = require('../../../auth/streamingV4/V4Transform');
  * the type of request requires them
  */
 function prepareStream(stream, streamingV4Params, log, errCb) {
-    if (stream.headers['x-amz-content-sha256'] ===
+    if (stream && stream.headers && stream.headers['x-amz-content-sha256'] ===
         'STREAMING-AWS4-HMAC-SHA256-PAYLOAD') {
         if (typeof streamingV4Params !== 'object') {
             // this might happen if the user provided a valid V2

lib/api/objectPost.js

@@ -0,0 +1,135 @@
+const async = require('async');
+const { errors, versioning } = require('arsenal');
+const { PassThrough } = require('stream');
+
+const collectCorsHeaders = require('../utilities/collectCorsHeaders');
+const createAndStoreObject = require('./apiUtils/object/createAndStoreObject');
+const { standardMetadataValidateBucketAndObj } = require('../metadata/metadataUtils');
+const { config } = require('../Config');
+const { setExpirationHeaders } = require('./apiUtils/object/expirationHeaders');
+const writeContinue = require('../utilities/writeContinue');
+const { overheadField } = require('../../constants');
+
+
+const versionIdUtils = versioning.VersionID;
+
+
+/**
+ * POST Object in the requested bucket. Steps include:
+ * validating metadata for authorization, bucket and object existence etc.
+ * store object data in datastore upon successful authorization
+ * store object location returned by datastore and
+ * object's (custom) headers in metadata
+ * return the result in final callback
+ *
+ * @param {AuthInfo} authInfo - Instance of AuthInfo class with requester's info
+ * @param {request} request - request object given by router,
+ *                            includes normalized headers
+ * @param {object | undefined } streamingV4Params - if v4 auth,
+ * object containing accessKey, signatureFromRequest, region, scopeDate,
+ * timestamp, and credentialScope
+ * (to be used for streaming v4 auth if applicable)
+ * @param {object} log - the log request
+ * @param {Function} callback - final callback to call with the result
+ * @return {undefined}
+ */
+function objectPost(authInfo, request, streamingV4Params, log, callback) {
+    const {
+        headers,
+        method,
+    } = request;
+    let parsedContentLength = 0;
+    const passThroughStream = new PassThrough();
+    const requestType = request.apiMethods || 'objectPost';
+    const valParams = {
+        authInfo,
+        bucketName: request.formData.bucket,
+        objectKey: request.formData.key,
+        requestType,
+        request,
+    };
+    const canonicalID = authInfo.getCanonicalID();
+
+
+    log.trace('owner canonicalID to send to data', { canonicalID });
+    return standardMetadataValidateBucketAndObj(valParams, request.actionImplicitDenies, log,
+        (err, bucket, objMD) => {
+            const responseHeaders = collectCorsHeaders(headers.origin,
+                method, bucket);
+
+            if (err && !err.AccessDenied) {
+                log.trace('error processing request', {
+                    error: err,
+                    method: 'metadataValidateBucketAndObj',
+                });
+                return callback(err, responseHeaders);
+            }
+            if (bucket.hasDeletedFlag() && canonicalID !== bucket.getOwner()) {
+                log.trace('deleted flag on bucket and request ' +
+                    'from non-owner account');
+                return callback(errors.NoSuchBucket);
+            }
+
+            return async.waterfall([
+                function countPOSTFileSize(next) {
+                    if (!request.fileEventData || !request.fileEventData.file) {
+                        return next();
+                    }
+                    request.fileEventData.file.on('data', (chunk) => {
+                        parsedContentLength += chunk.length;
+                        passThroughStream.write(chunk);
+                    });
+
+                    request.fileEventData.file.on('end', () => {
+                        passThroughStream.end();
+                        // Setting the file in the request avoids the need to make changes to createAndStoreObject's
+                        // parameters and thus all it's subsequent calls. This is necessary as the stream used to create
+                        // the object is that of the request directly; something we must work around
+                        // to use the file data produced from the multipart form data.
+                        /* eslint-disable no-param-reassign */
+                        request.fileEventData.file = passThroughStream;
+                        /* eslint-disable no-param-reassign */
+                        // Here parsedContentLength will have the total size of the file
+                        // This is used when calculating the size of the object in createAndStoreObject
+                        request.parsedContentLength = parsedContentLength;
+                        return next();
+                    });
+                    return undefined;
+                },
+                function objectCreateAndStore(next) {
+                    writeContinue(request, request._response);
+                    return createAndStoreObject(request.bucketName,
+                        bucket, request.formData.key, objMD, authInfo, canonicalID, null,
+                        request, false, streamingV4Params, overheadField, log, next);
+                },
+            ], (err, storingResult) => {
+                if (err) {
+                    return callback(err, responseHeaders);
+                }
+                setExpirationHeaders(responseHeaders, {
+                    lifecycleConfig: bucket.getLifecycleConfiguration(),
+                    objectParams: {
+                        key: request.key,
+                        date: storingResult.lastModified,
+                        tags: storingResult.tags,
+                    },
+                });
+                if (storingResult) {
+                    // ETag's hex should always be enclosed in quotes
+                    responseHeaders.ETag = `"${storingResult.contentMD5}"`;
+                }
+                const vcfg = bucket.getVersioningConfiguration();
+                const isVersionedObj = vcfg && vcfg.Status === 'Enabled';
+                if (isVersionedObj) {
+                    if (storingResult && storingResult.versionId) {
+                        responseHeaders['x-amz-version-id'] =
+                            versionIdUtils.encode(storingResult.versionId,
+                                config.versionIdEncodingType);
+                    }
+                }
+                return callback(null, responseHeaders);
+            });
+        });
+}
+
+module.exports = objectPost;

package.json

@@ -19,8 +19,9 @@
   },
   "homepage": "https://github.com/scality/S3#readme",
   "dependencies": {
+    "@fastify/busboy": "^2.1.1",
     "@hapi/joi": "^17.1.0",
-    "arsenal": "git+https://github.com/scality/arsenal#7.70.29",
+    "arsenal": "git+https://github.com/scality/arsenal#b00aea282244cd90efc745941e03d0be7e734fc7",
     "async": "~2.5.0",
     "aws-sdk": "2.905.0",
     "azure-storage": "^2.1.0",
@@ -60,6 +61,8 @@
   },
   "scripts": {
     "ft_awssdk": "cd tests/functional/aws-node-sdk && mocha --reporter mocha-multi-reporters --reporter-options configFile=$INIT_CWD/tests/reporter-config.json test/",
+    "ft_post": "cd tests/functional/aws-node-sdk && mocha --reporter mocha-multi-reporters --reporter-options configFile=$INIT_CWD/tests/reporter-config.json test/object/post.js",
+    "ft_post_aws": "cd tests/functional/aws-node-sdk && mocha --reporter mocha-multi-reporters --reporter-options configFile=$INIT_CWD/tests/reporter-config.json test/object/post-copy.js",
     "ft_awssdk_aws": "cd tests/functional/aws-node-sdk && AWS_ON_AIR=true mocha --reporter mocha-multi-reporters --reporter-options configFile=$INIT_CWD/tests/reporter-config.json test/",
     "ft_awssdk_buckets": "cd tests/functional/aws-node-sdk && mocha --reporter mocha-multi-reporters --reporter-options configFile=$INIT_CWD/tests/reporter-config.json test/bucket",
     "ft_awssdk_objects_misc": "cd tests/functional/aws-node-sdk && mocha --reporter mocha-multi-reporters --reporter-options configFile=$INIT_CWD/tests/reporter-config.json test/legacy test/object test/service test/support",

tests/functional/aws-node-sdk/test/object/post.js

@@ -0,0 +1,722 @@
+const xml2js = require('xml2js');
+const axios = require('axios');
+const fs = require('fs');
+const path = require('path');
+const crypto = require('crypto');
+const FormData = require('form-data');
+const assert = require('assert');
+
+const BucketUtility = require('../../lib/utility/bucket-util');
+const getConfig = require('../support/config');
+
+const filename = 'test-file.txt';
+const region = 'us-east-1';
+let ak;
+let sk;
+let s3;
+
+const generateBucketName = () => `test-bucket-${crypto.randomBytes(8).toString('hex')}`;
+
+const formatDate = (date) => {
+    const year = date.getUTCFullYear();
+    const month = (date.getUTCMonth() + 1).toString().padStart(2, '0');
+    const day = date.getUTCDate().toString().padStart(2, '0');
+    return `${year}${month}${day}`;
+};
+
+const getSignatureKey = (key, dateStamp, regionName, serviceName) => {
+    const kDate = crypto.createHmac('sha256', `AWS4${key}`).update(dateStamp).digest();
+    const kRegion = crypto.createHmac('sha256', kDate).update(regionName).digest();
+    const kService = crypto.createHmac('sha256', kRegion).update(serviceName).digest();
+    const kSigning = crypto.createHmac('sha256', kService).update('aws4_request').digest();
+    return kSigning;
+};
+
+const calculateFields = (ak, sk, bucketName, additionalConditions) => {
+    const service = 's3';
+
+    const now = new Date();
+    const formattedDate = now.toISOString().replace(/[:-]|\.\d{3}/g, '');
+    const shortFormattedDate = formatDate(now);
+
+    const credential = `${ak}/${shortFormattedDate}/${region}/${service}/aws4_request`;
+    const conditionsFields = [
+        { bucket: bucketName },
+        { key: filename },
+        { 'x-amz-credential': credential },
+        { 'x-amz-algorithm': 'AWS4-HMAC-SHA256' },
+        { 'x-amz-date': formattedDate },
+    ];
+    if (additionalConditions) {
+        additionalConditions.forEach(field => {
+            const key = Object.keys(field)[0];
+            const value = field[key];
+            const index = conditionsFields.findIndex(condition => condition.hasOwnProperty(key));
+            if (index !== -1) {
+                conditionsFields[index][key] = value;
+            } else {
+                conditionsFields.push({ [key]: value });
+            }
+        });
+    }
+    const policy = {
+        // 15 minutes from now
+        expiration: new Date(new Date().getTime() + 15 * 60 * 1000).toISOString(),
+        conditions: conditionsFields,
+    };
+    const policyBase64 = Buffer.from(JSON.stringify(policy)).toString('base64');
+
+    const signingKey = getSignatureKey(sk, shortFormattedDate, region, service);
+    const signature = crypto.createHmac('sha256', signingKey).update(policyBase64).digest('hex');
+
+    const returnFields = [
+        { name: 'X-Amz-Credential', value: credential },
+        { name: 'X-Amz-Algorithm', value: 'AWS4-HMAC-SHA256' },
+        { name: 'X-Amz-Signature', value: signature },
+        { name: 'X-Amz-Date', value: formattedDate },
+        { name: 'Policy', value: policyBase64 },
+        { name: 'bucket', value: bucketName },
+        { name: 'key', value: filename },
+    ];
+    if (!additionalConditions) {
+        return returnFields;
+    }
+    if (additionalConditions) {
+        additionalConditions.forEach(field => {
+            const key = Object.keys(field)[0];
+            const value = field[key];
+            const index = returnFields.findIndex(f => f.name === key);
+            if (index !== -1) {
+                returnFields[index].value = value;
+            } else {
+                returnFields.push({ name: key, value });
+            }
+        });
+    }
+    return returnFields;
+};
+
+
+describe('POST object', () => {
+    let bucketUtil;
+    let config;
+    const testContext = {};
+
+    before(() => {
+        config = getConfig('default');
+        ak = config.credentials.accessKeyId;
+        sk = config.credentials.secretAccessKey;
+        bucketUtil = new BucketUtility('default');
+        s3 = bucketUtil.s3;
+    });
+
+    beforeEach(done => {
+        const bucketName = generateBucketName();
+        const url = `${config.endpoint}/${bucketName}`;
+        testContext.bucketName = bucketName;
+        testContext.url = url;
+
+        const filePath = path.join(__dirname, filename);
+        const fileContent = 'This is a test file';
+        fs.writeFile(filePath, fileContent, err => {
+            if (err) {
+                return done(err);
+            }
+
+            // Create the bucket
+            return s3.createBucket({ Bucket: bucketName }, async (err) => {
+                if (err) {
+                    return done(err);
+                }
+                return done();
+            });
+        });
+    });
+
+    afterEach(() => {
+        const { bucketName } = testContext;
+        const filePath = path.join(__dirname, filename);
+
+        // Delete the file
+        fs.unlink(filePath, err => {
+            if (err) {
+                throw err;
+            }
+
+            process.stdout.write('Emptying bucket');
+            return bucketUtil.empty(bucketName)
+                .then(() => {
+                    process.stdout.write('Deleting bucket');
+                    return bucketUtil.deleteOne(bucketName);
+                })
+                .catch(err => {
+                    if (err.code !== 'NoSuchBucket') {
+                        process.stdout.write('Error in afterEach');
+                        throw err;
+                    }
+                });
+        });
+    });
+
+    it('should successfully upload an object using a POST form', done => {
+        const { bucketName, url } = testContext;
+        const fields = calculateFields(ak, sk, bucketName);
+        const formData = new FormData();
+
+        fields.forEach(field => {
+            formData.append(field.name, field.value);
+        });
+
+        formData.append('file', fs.createReadStream(path.join(__dirname, filename)));
+
+        formData.getLength((err, length) => {
+            if (err) {
+                return done(err);
+            }
+
+            return axios.post(url, formData, {
+                headers: {
+                    ...formData.getHeaders(),
+                    'Content-Length': length,
+                },
+            })
+                .then(response => {
+                    assert.equal(response.status, 204);
+                    done();
+                })
+                .catch(err => {
+                    done(err);
+                });
+        });
+    });
+
+    it('should handle error when bucket does not exist', done => {
+        const fakeBucketName = generateBucketName();
+        const tempUrl = `${config.endpoint}/${fakeBucketName}`;
+        const fields = calculateFields(ak, sk, fakeBucketName);
+        const formData = new FormData();
+
+        fields.forEach(field => {
+            formData.append(field.name, field.value);
+        });
+
+        formData.append('file', fs.createReadStream(path.join(__dirname, filename)));
+
+        formData.getLength((err, length) => {
+            if (err) {
+                return done(err);
+            }
+
+            return axios.post(tempUrl, formData, {
+                headers: {
+                    ...formData.getHeaders(),
+                    'Content-Length': length,
+                },
+            })
+                .then(() => {
+                    done(new Error('Expected error but got success response'));
+                })
+                .catch(err => {
+                    assert.equal(err.response.status, 404);
+                    done();
+                });
+        });
+    });
+
+    it('should successfully upload a larger file to S3 using a POST form', done => {
+        const { bucketName, url } = testContext;
+        const largeFileName = 'large-test-file.txt';
+        const largeFilePath = path.join(__dirname, largeFileName);
+        const largeFileContent = 'This is a larger test file'.repeat(10000); // Simulate a larger file
+
+        fs.writeFile(largeFilePath, largeFileContent, err => {
+            if (err) {
+                return done(err);
+            }
+
+            const fields = calculateFields(ak, sk, bucketName, [{ key: largeFileName }]);
+            const formData = new FormData();
+
+            fields.forEach(field => {
+                formData.append(field.name, field.value);
+            });
+
+            formData.append('file', fs.createReadStream(largeFilePath));
+
+            return formData.getLength((err, length) => {
+                if (err) {
+                    return done(err);
+                }
+
+                return axios.post(url, formData, {
+                    headers: {
+                        ...formData.getHeaders(),
+                        'Content-Length': length,
+                    },
+                })
+                    .then(response => {
+                        assert.equal(response.status, 204);
+                        s3.listObjectsV2({ Bucket: bucketName }, (err, data) => {
+                            if (err) {
+                                fs.unlink(largeFilePath, () => done(err)); // Clean up and propagate the error
+                                return;
+                            }
+
+                            const uploadedFile = data.Contents.find(item => item.Key === path.basename(largeFileName));
+                            assert(uploadedFile, 'Uploaded file should exist in the bucket');
+                            assert.equal(uploadedFile.Size, Buffer.byteLength(largeFileContent),
+                                'File size should match');
+
+                            fs.unlink(largeFilePath, done); // Clean up the large file
+                        });
+                    })
+                    .catch(err => {
+                        fs.unlink(largeFilePath, () => done(err)); // Clean up and propagate the error
+                    });
+            });
+        });
+    });
+
+    it('should be able to post an empty file and verify its existence', done => {
+        const { bucketName, url } = testContext;
+        const emptyFilePath = path.join(__dirname, 'empty-file.txt');
+
+        // Create an empty file
+        fs.writeFile(emptyFilePath, '', err => {
+            if (err) {
+                return done(err);
+            }
+
+            const fields = calculateFields(ak, sk, bucketName);
+            const formData = new FormData();
+
+            fields.forEach(field => {
+                formData.append(field.name, field.value);
+            });
+
+            formData.append('file', fs.createReadStream(emptyFilePath));
+
+            return formData.getLength((err, length) => {
+                if (err) {
+                    return done(err);
+                }
+
+                return axios.post(url, formData, {
+                    headers: {
+                        ...formData.getHeaders(),
+                        'Content-Length': length,
+                    },
+                })
+                    .then(response => {
+                        assert.equal(response.status, 204);
+
+                        // Check if the object exists using listObjects
+                        return s3.listObjects({ Bucket: bucketName, Prefix: filename }, (err, data) => {
+                            if (err) {
+                                return done(err);
+                            }
+
+                            const fileExists = data.Contents.some(item => item.Key === filename);
+
+                            const file = data.Contents.find(item => item.Key === filename);
+                            assert.equal(file.Size, 0);
+
+                            if (!fileExists) {
+                                return done(new Error('File does not exist in S3'));
+                            }
+
+                            // Clean up: delete the empty file locally and from S3
+                            return fs.unlink(emptyFilePath, err => {
+                                if (err) {
+                                    return done(err);
+                                }
+
+                                return s3.deleteObject({ Bucket: bucketName, Key: filename }, err => {
+                                    if (err) {
+                                        return done(err);
+                                    }
+
+                                    return done();
+                                });
+                            });
+                        });
+                    })
+                    .catch(err => {
+                        done(err);
+                    });
+            });
+        });
+    });
+
+    it('should handle error when file is missing', done => {
+        const { bucketName, url } = testContext;
+        const fields = calculateFields(ak, sk, bucketName);
+        const formData = new FormData();
+
+        fields.forEach(field => {
+            formData.append(field.name, field.value);
+        });
+
+        formData.getLength((err, length) => {
+            if (err) {
+                return done(err);
+            }
+
+            return axios.post(url, formData, {
+                headers: {
+                    ...formData.getHeaders(),
+                    'Content-Length': length,
+                },
+            })
+                .then(() => {
+                    done(new Error('Expected error but got success response'));
+                })
+                .catch(err => {
+                    assert.equal(err.response.status, 400);
+                    done();
+                });
+        });
+    });
+
+    it('should upload an object with key slash', done => {
+        const { bucketName, url } = testContext;
+        const slashKey = '/';
+        const fields = calculateFields(ak, sk, bucketName, [{ key: slashKey }]);
+
+        const formData = new FormData();
+
+        fields.forEach(field => {
+            formData.append(field.name, field.value);
+        });
+
+        formData.append('file', fs.createReadStream(path.join(__dirname, filename)));
+
+        formData.getLength((err, length) => {
+            if (err) {
+                return done(err);
+            }
+
+            return axios.post(url, formData, {
+                headers: {
+                    ...formData.getHeaders(),
+                    'Content-Length': length,
+                },
+            })
+                .then(response => {
+                    assert.equal(response.status, 204);
+                    done();
+                })
+                .catch(err => {
+                    done(err);
+                });
+        });
+    });
+
+    it('should return an error if form data (excluding file) exceeds 20KB', done => {
+        const { bucketName, url } = testContext;
+        const fields = calculateFields(ak, sk, bucketName);
+
+        // Add additional fields to make form data exceed 20KB
+        const largeValue = 'A'.repeat(1024); // 1KB value
+        for (let i = 0; i < 21; i++) { // Add 21 fields of 1KB each to exceed 20KB
+            fields.push({ name: `field${i}`, value: largeValue });
+        }
+
+        const formData = new FormData();
+
+        fields.forEach(field => {
+            formData.append(field.name, field.value);
+        });
+
+        formData.append('file', fs.createReadStream(path.join(__dirname, filename)));
+
+        return formData.getLength((err, length) => {
+            if (err) {
+                return done(err);
+            }
+
+            return axios.post(url, formData, {
+                headers: {
+                    ...formData.getHeaders(),
+                    'Content-Length': length,
+                },
+            })
+                .then(() => {
+                    done(new Error('Request should not succeed with form data exceeding 20KB'));
+                })
+                .catch(err => {
+                    assert.ok(err.response, 'Error should be returned by axios');
+
+                    // Parse the XML error response
+                    xml2js.parseString(err.response.data, (err, result) => {
+                        if (err) {
+                            return done(err);
+                        }
+
+                        const error = result.Error;
+                        assert.equal(error.Code[0], 'MaxPostPreDataLengthExceeded');
+                        assert.equal(error.Message[0],
+                            'Your POST request fields preceeding the upload file was too large.');
+                        return done();
+                    });
+                });
+        });
+    });
+
+    it('should successfully upload an object with bucket versioning enabled and verify version ID', done => {
+        const { url, bucketName } = testContext;
+
+        // Enable versioning on the bucket
+        const versioningParams = {
+            Bucket: bucketName,
+            VersioningConfiguration: {
+                Status: 'Enabled',
+            },
+        };
+
+        return s3.putBucketVersioning(versioningParams, (err) => {
+            if (err) {
+                return done(err);
+            }
+
+            const fields = calculateFields(ak, sk, bucketName, [{ bucket: bucketName }]);
+            const formData = new FormData();
+
+            fields.forEach(field => {
+                formData.append(field.name, field.value);
+            });
+
+            formData.append('file', fs.createReadStream(path.join(__dirname, 'test-file.txt')));
+
+            return formData.getLength((err, length) => {
+                if (err) {
+                    return done(err);
+                }
+
+                return axios.post(url, formData, {
+                    headers: {
+                        ...formData.getHeaders(),
+                        'Content-Length': length,
+                    },
+                })
+                    .then(response => {
+                        assert.equal(response.status, 204);
+
+                        // Verify version ID is present in the response
+                        const versionId = response.headers['x-amz-version-id'];
+                        assert.ok(versionId, 'Version ID should be present in the response headers');
+                        done();
+                    })
+                    .catch(err => {
+                        done(err);
+                    });
+            });
+        });
+    });
+
+    it('should handle error when signature is invalid', done => {
+        const { url, bucketName } = testContext;
+
+        const fields = calculateFields(ak, sk, bucketName);
+        fields.push({ name: 'X-Amz-Signature', value: 'invalid-signature' });
+        const formData = new FormData();
+
+        fields.forEach(field => {
+            formData.append(field.name, field.value);
+        });
+
+        formData.append('file', fs.createReadStream(path.join(__dirname, 'test-file.txt')));
+
+        formData.getLength((err, length) => {
+            if (err) {
+                return done(err);
+            }
+
+            return axios.post(url, formData, {
+                headers: {
+                    ...formData.getHeaders(),
+                    'Content-Length': length,
+                },
+            })
+                .then(() => done(new Error('Expected error but got success response')))
+                .catch(err => {
+                    assert.equal(err.response.status, 403);
+                    return xml2js.parseString(err.response.data, (err, result) => {
+                        if (err) {
+                            return done(err);
+                        }
+
+                        const error = result.Error;
+                        assert.equal(error.Code[0], 'SignatureDoesNotMatch');
+                        assert.equal(error.Message[0],
+                            'The request signature we calculated does not match the signature you provided.');
+                        return done();
+                    });
+                });
+        });
+    });
+
+    it('should return an error when signature includes invalid data', done => {
+        const { url, bucketName } = testContext;
+        let fields = calculateFields(ak, sk, bucketName);
+        const laterThanNow = new Date(new Date().getTime() + 60000);
+        const shortFormattedDate = formatDate(laterThanNow);
+
+        const signingKey = getSignatureKey(sk, shortFormattedDate, 'ap-east-1', 's3');
+        const signature = crypto.createHmac('sha256', signingKey).update(fields.find(field =>
+            field.name === 'Policy').value).digest('hex');
+
+        // Modify the signature to be invalid
+        fields = fields.map(field => {
+            if (field.name === 'X-Amz-Signature') {
+                return { name: 'X-Amz-Signature', value: signature };
+            }
+            return field;
+        });
+
+        const formData = new FormData();
+
+        fields.forEach(field => {
+            formData.append(field.name, field.value);
+        });
+
+        formData.append('file', fs.createReadStream(path.join(__dirname, 'test-file.txt')));
+
+        return formData.getLength((err, length) => {
+            if (err) {
+                return done(err);
+            }
+
+            return axios.post(url, formData, {
+                headers: {
+                    ...formData.getHeaders(),
+                    'Content-Length': length,
+                },
+            })
+                .then(() => done(new Error('Request should not succeed with an invalid signature')))
+                .catch(err => {
+                    assert.ok(err.response, 'Error should be returned by axios');
+
+                    // Parse the XML error response
+                    return xml2js.parseString(err.response.data, (parseErr, result) => {
+                        if (parseErr) {
+                            return done(parseErr);
+                        }
+
+                        const error = result.Error;
+                        assert.equal(
+                            error.Code[0],
+                            'SignatureDoesNotMatch',
+                            'Expected SignatureDoesNotMatch error code'
+                        );
+                        return done();
+                    });
+                });
+        });
+    });
+
+    it('should return an error for invalid keys', done => {
+        const { url, bucketName } = testContext;
+        const invalidAccessKeyId = 'INVALIDACCESSKEY';
+        const invalidSecretAccessKey = 'INVALIDSECRETKEY';
+        let fields = calculateFields(invalidAccessKeyId, invalidSecretAccessKey, bucketName);
+
+        // Modify the signature to be invalid
+        fields = fields.map(field => {
+            if (field.name === 'X-Amz-Signature') {
+                return { name: 'X-Amz-Signature', value: 'invalid-signature' };
+            }
+            return field;
+        });
+
+        const formData = new FormData();
+
+        fields.forEach(field => {
+            formData.append(field.name, field.value);
+        });
+
+        formData.append('file', fs.createReadStream(path.join(__dirname, 'test-file.txt')));
+
+        formData.getLength((err, length) => {
+            if (err) {
+                return done(err);
+            }
+
+            return axios.post(url, formData, {
+                headers: {
+                    ...formData.getHeaders(),
+                    'Content-Length': length,
+                },
+            })
+                .then(() => done(new Error('Request should not succeed with an invalid keys')))
+                .catch(err => {
+                    assert.ok(err.response, 'Error should be returned by axios');
+
+                    // Parse the XML error response
+                    return xml2js.parseString(err.response.data, (parseErr, result) => {
+                        if (parseErr) {
+                            return done(parseErr);
+                        }
+
+                        const error = result.Error;
+                        assert.equal(error.Code[0], 'InvalidAccessKeyId', 'Expected InvalidAccessKeyId error code');
+                        return done();
+                    });
+                });
+        });
+    });
+
+    it('should return an error for invalid credential', done => {
+        const { url, bucketName } = testContext;
+        let fields = calculateFields(ak, sk, bucketName);
+        const laterThanNow = new Date(new Date().getTime() + 60000);
+        const shortFormattedDate = formatDate(laterThanNow);
+
+        const credential = `${ak}/${shortFormattedDate}/eu-west-1/blabla/aws4_request`;
+
+        // Modify the signature to be invalid
+        fields = fields.map(field => {
+            if (field.name === 'X-Amz-Credential') {
+                return { name: 'X-Amz-Credential', value: credential };
+            }
+            return field;
+        });
+
+        const formData = new FormData();
+
+        fields.forEach(field => {
+            formData.append(field.name, field.value);
+        });
+
+        formData.append('file', fs.createReadStream(path.join(__dirname, 'test-file.txt')));
+
+        formData.getLength((err, length) => {
+            if (err) {
+                return done(err);
+            }
+
+            return axios.post(url, formData, {
+                headers: {
+                    ...formData.getHeaders(),
+                    'Content-Length': length,
+                },
+            })
+                .then(() => done(new Error('Request should not succeed with an invalid credential')))
+                .catch(err => {
+                    assert.ok(err.response, 'Error should be returned by axios');
+
+                    // Parse the XML error response
+                    return xml2js.parseString(err.response.data, (parseErr, result) => {
+                        if (parseErr) {
+                            return done(parseErr);
+                        }
+
+                        const error = result.Error;
+                        assert.equal(error.Code[0], 'InvalidArgument', 'Expected InvalidArgument error code');
+                        return done();
+                    });
+                });
+        });
+    });
+});
+

tests/unit/api/objectPost.js

@@ -0,0 +1,439 @@
+const assert = require('assert');
+const async = require('async');
+const moment = require('moment');
+const { errors } = require('arsenal');
+const sinon = require('sinon');
+
+const { bucketPut } = require('../../../lib/api/bucketPut');
+const bucketPutObjectLock = require('../../../lib/api/bucketPutObjectLock');
+const bucketPutVersioning = require('../../../lib/api/bucketPutVersioning');
+const { cleanup, DummyRequestLogger, makeAuthInfo, versioningTestUtils }
+    = require('../helpers');
+const { ds } = require('arsenal').storage.data.inMemory.datastore;
+const metadata = require('../metadataswitch');
+const objectPost = require('../../../lib/api/objectPost');
+const { objectLockTestUtils } = require('../helpers');
+const DummyRequest = require('../DummyRequest');
+const mpuUtils = require('../utils/mpuUtils');
+const any = sinon.match.any;
+
+const log = new DummyRequestLogger();
+const canonicalID = 'accessKey1';
+const authInfo = makeAuthInfo(canonicalID);
+const bucketName = 'bucketname123';
+const postBody = Buffer.from('I am a body', 'utf8');
+const correctMD5 = 'be747eb4b75517bf6b3cf7c5fbb62f3a';
+const mockDate = new Date(2050, 10, 12);
+const testPutBucketRequest = new DummyRequest({
+    bucketName,
+    headers: { host: `${bucketName}.s3.amazonaws.com` },
+    url: '/',
+});
+const testPutBucketRequestLock = new DummyRequest({
+    bucketName,
+    headers: {
+        'host': `${bucketName}.s3.amazonaws.com`,
+        'x-amz-bucket-object-lock-enabled': 'true',
+    },
+    url: '/',
+});
+
+const originalputObjectMD = metadata.putObjectMD;
+const objectName = 'objectName';
+
+let testPostObjectRequest;
+const enableVersioningRequest =
+    versioningTestUtils.createBucketPutVersioningReq(bucketName, 'Enabled');
+const suspendVersioningRequest =
+    versioningTestUtils.createBucketPutVersioningReq(bucketName, 'Suspended');
+
+describe('objectPost API', () => {
+    beforeEach(() => {
+        cleanup();
+        sinon.spy(metadata, 'putObjectMD');
+        testPostObjectRequest = new DummyRequest({
+            bucketName,
+            formData: {
+                bucket: bucketName,
+                key: objectName,
+            },
+            fileEventData: {},
+            headers: { host: `${bucketName}.s3.amazonaws.com` },
+            url: '/',
+        }, postBody);
+    });
+
+    afterEach(() => {
+        sinon.restore();
+        metadata.putObjectMD = originalputObjectMD;
+    });
+
+    it('should return an error if the bucket does not exist', done => {
+        objectPost(authInfo, testPostObjectRequest, undefined, log, err => {
+            assert.deepStrictEqual(err, errors.NoSuchBucket);
+            done();
+        });
+    });
+
+    it('should successfully post an object', done => {
+        const testPostObjectRequest = new DummyRequest({
+            bucketName,
+            formData: {
+                bucket: bucketName,
+                key: objectName,
+            },
+            fileEventData: {},
+            headers: {},
+            url: '/',
+            calculatedHash: 'vnR+tLdVF79rPPfF+7YvOg==',
+        }, postBody);
+
+        bucketPut(authInfo, testPutBucketRequest, log, () => {
+            objectPost(authInfo, testPostObjectRequest, undefined, log,
+                (err, resHeaders) => {
+                    assert.strictEqual(resHeaders.ETag, `"${correctMD5}"`);
+                    metadata.getObjectMD(bucketName, objectName,
+                        {}, log, (err, md) => {
+                            assert(md);
+                            assert
+                                .strictEqual(md['content-md5'], correctMD5);
+                            done();
+                        });
+                });
+        });
+    });
+
+    const mockModes = ['GOVERNANCE', 'COMPLIANCE'];
+    mockModes.forEach(mockMode => {
+        it(`should post an object with valid date & ${mockMode} mode`, done => {
+            const testPostObjectRequest = new DummyRequest({
+                bucketName,
+                formData: {
+                    bucket: bucketName,
+                    key: objectName,
+                },
+                fileEventData: {},
+                headers: {
+                    'x-amz-object-lock-retain-until-date': mockDate,
+                    'x-amz-object-lock-mode': mockMode,
+                },
+                url: '/',
+                calculatedHash: 'vnR+tLdVF79rPPfF+7YvOg==',
+            }, postBody);
+            bucketPut(authInfo, testPutBucketRequestLock, log, () => {
+                objectPost(authInfo, testPostObjectRequest, undefined, log,
+                    (err, headers) => {
+                        assert.ifError(err);
+                        assert.strictEqual(headers.ETag, `"${correctMD5}"`);
+                        metadata.getObjectMD(bucketName, objectName, {}, log,
+                            (err, md) => {
+                                const mode = md.retentionMode;
+                                const retainUntilDate = md.retentionDate;
+                                assert.ifError(err);
+                                assert(md);
+                                assert.strictEqual(mode, mockMode);
+                                assert.strictEqual(retainUntilDate, mockDate);
+                                done();
+                            });
+                    });
+            });
+        });
+    });
+
+    const formatTime = time => time.slice(0, 20);
+
+    const testObjectLockConfigs = [
+        {
+            testMode: 'COMPLIANCE',
+            val: 30,
+            type: 'Days',
+        },
+        {
+            testMode: 'GOVERNANCE',
+            val: 5,
+            type: 'Years',
+        },
+    ];
+    testObjectLockConfigs.forEach(config => {
+        const { testMode, type, val } = config;
+        it('should put an object with default retention if object does not ' +
+            'have retention configuration but bucket has', done => {
+            const testPostObjectRequest = new DummyRequest({
+                bucketName,
+                formData: {
+                    bucket: bucketName,
+                    key: objectName,
+                },
+                fileEventData: {},
+                headers: {},
+                url: '/',
+                calculatedHash: 'vnR+tLdVF79rPPfF+7YvOg==',
+            }, postBody);
+
+            const testObjLockRequest = {
+                bucketName,
+                headers: { host: `${bucketName}.s3.amazonaws.com` },
+                post: objectLockTestUtils.generateXml(testMode, val, type),
+            };
+
+            bucketPut(authInfo, testPutBucketRequestLock, log, () => {
+                bucketPutObjectLock(authInfo, testObjLockRequest, log, () => {
+                    objectPost(authInfo, testPostObjectRequest, undefined, log,
+                            (err, headers) => {
+                                assert.ifError(err);
+                                assert.strictEqual(headers.ETag, `"${correctMD5}"`);
+                                metadata.getObjectMD(bucketName, objectName, {},
+                                    log, (err, md) => {
+                                        const mode = md.retentionMode;
+                                        const retainDate = md.retentionDate;
+                                        const date = moment();
+                                        const days
+                                            = type === 'Days' ? val : val * 365;
+                                        const expectedDate
+                                            = date.add(days, 'days');
+                                        assert.ifError(err);
+                                        assert.strictEqual(mode, testMode);
+                                        assert.strictEqual(formatTime(retainDate),
+                                            formatTime(expectedDate.toISOString()));
+                                        done();
+                                    });
+                            });
+                });
+            });
+        });
+    });
+
+
+    it('should successfully put an object with legal hold ON', done => {
+        const request = new DummyRequest({
+            bucketName,
+            formData: {
+                bucket: bucketName,
+                key: objectName,
+            },
+            fileEventData: {},
+            headers: {
+                'x-amz-object-lock-legal-hold': 'ON',
+            },
+            url: '/',
+            calculatedHash: 'vnR+tLdVF79rPPfF+7YvOg==',
+        }, postBody);
+
+        bucketPut(authInfo, testPutBucketRequestLock, log, () => {
+            objectPost(authInfo, request, undefined, log, (err, headers) => {
+                assert.ifError(err);
+                assert.strictEqual(headers.ETag, `"${correctMD5}"`);
+                metadata.getObjectMD(bucketName, objectName, {}, log,
+                    (err, md) => {
+                        assert.ifError(err);
+                        assert.strictEqual(md.legalHold, true);
+                        done();
+                    });
+            });
+        });
+    });
+
+    it('should successfully put an object with legal hold OFF', done => {
+        const request = new DummyRequest({
+            bucketName,
+            formData: {
+                bucket: bucketName,
+                key: objectName,
+            },
+            fileEventData: {},
+            headers: {
+                'x-amz-object-lock-legal-hold': 'OFF',
+            },
+            url: '/',
+            calculatedHash: 'vnR+tLdVF79rPPfF+7YvOg==',
+        }, postBody);
+
+        bucketPut(authInfo, testPutBucketRequestLock, log, () => {
+            objectPost(authInfo, request, undefined, log, (err, headers) => {
+                assert.ifError(err);
+                assert.strictEqual(headers.ETag, `"${correctMD5}"`);
+                metadata.getObjectMD(bucketName, objectName, {}, log,
+                    (err, md) => {
+                        assert.ifError(err);
+                        assert(md);
+                        assert.strictEqual(md.legalHold, false);
+                        done();
+                    });
+            });
+        });
+    });
+
+    it('should not leave orphans in data when overwriting an object', done => {
+        const testPostObjectRequest2 = new DummyRequest({
+            bucketName,
+            formData: {
+                bucket: bucketName,
+                key: objectName,
+            },
+            fileEventData: {},
+            headers: {},
+            url: '/',
+        }, Buffer.from('I am another body', 'utf8'));
+
+        bucketPut(authInfo, testPutBucketRequest, log, () => {
+            objectPost(authInfo, testPostObjectRequest,
+                undefined, log, () => {
+                    objectPost(authInfo, testPostObjectRequest2, undefined,
+                        log,
+                        () => {
+                            // orphan objects don't get deleted
+                            // until the next tick
+                            // in memory
+                            setImmediate(() => {
+                                // Data store starts at index 1
+                                assert.strictEqual(ds[0], undefined);
+                                assert.strictEqual(ds[1], undefined);
+                                assert.deepStrictEqual(ds[2].value,
+                                    Buffer.from('I am another body', 'utf8'));
+                                done();
+                            });
+                        });
+                });
+        });
+    });
+
+    it('should not leave orphans in data when overwriting an multipart upload object', done => {
+        bucketPut(authInfo, testPutBucketRequest, log, () => {
+            mpuUtils.createMPU('default', bucketName, objectName, log,
+                (err, testUploadId) => {
+                    objectPost(authInfo, testPostObjectRequest, undefined, log, err => {
+                        assert.ifError(err);
+                        sinon.assert.calledWith(metadata.putObjectMD,
+                            any, any, any, sinon.match({ oldReplayId: testUploadId }), any, any);
+                        done();
+                    });
+                });
+        });
+    });
+
+    describe('objectPost API with versioning', () => {
+        beforeEach(() => {
+            cleanup();
+        });
+
+        const objData = ['foo0', 'foo1', 'foo2'].map(str =>
+            Buffer.from(str, 'utf8'));
+        const testPostObjectRequests = objData.map(data => versioningTestUtils
+            .createPostObjectRequest(bucketName, objectName, data));
+
+        it('should delete latest version when creating new null version ' +
+            'if latest version is null version', done => {
+            async.series([
+                callback => bucketPut(authInfo, testPutBucketRequest, log,
+                        callback),
+                    // putting null version by putting obj before versioning configured
+                callback => objectPost(authInfo, testPostObjectRequests[0], undefined,
+                        log, err => {
+                            versioningTestUtils.assertDataStoreValues(ds, [objData[0]]);
+                            callback(err);
+                        }),
+                callback => bucketPutVersioning(authInfo, suspendVersioningRequest,
+                        log, callback),
+                    // creating new null version by putting obj after ver suspended
+                callback => objectPost(authInfo, testPostObjectRequests[1],
+                        undefined, log, err => {
+                            // wait until next tick since mem backend executes
+                            // deletes in the next tick
+                            setImmediate(() => {
+                                // old null version should be deleted
+                                versioningTestUtils.assertDataStoreValues(ds,
+                                    [undefined, objData[1]]);
+                                callback(err);
+                            });
+                        }),
+                    // create another null version
+                callback => objectPost(authInfo, testPostObjectRequests[2],
+                        undefined, log, err => {
+                            setImmediate(() => {
+                                // old null version should be deleted
+                                versioningTestUtils.assertDataStoreValues(ds,
+                                    [undefined, undefined, objData[2]]);
+                                callback(err);
+                            });
+                        }),
+            ], done);
+        });
+
+        describe('when null version is not the latest version', () => {
+            const objData = ['foo0', 'foo1', 'foo2'].map(str =>
+                Buffer.from(str, 'utf8'));
+            const testPostObjectRequests = objData.map(data => versioningTestUtils
+                .createPostObjectRequest(bucketName, objectName, data));
+            beforeEach(done => {
+                async.series([
+                    callback => bucketPut(authInfo, testPutBucketRequest, log,
+                        callback),
+                    // putting null version: put obj before versioning configured
+                    callback => objectPost(authInfo, testPostObjectRequests[0],
+                        undefined, log, callback),
+                    callback => bucketPutVersioning(authInfo,
+                        enableVersioningRequest, log, callback),
+                    // put another version:
+                    callback => objectPost(authInfo, testPostObjectRequests[1],
+                        undefined, log, callback),
+                    callback => bucketPutVersioning(authInfo,
+                        suspendVersioningRequest, log, callback),
+                ], err => {
+                    if (err) {
+                        return done(err);
+                    }
+                    versioningTestUtils.assertDataStoreValues(ds,
+                        objData.slice(0, 2));
+                    return done();
+                });
+            });
+
+            it('should still delete null version when creating new null version',
+                done => {
+                    objectPost(authInfo, testPostObjectRequests[2], undefined,
+                        log, err => {
+                            assert.ifError(err, `Unexpected err: ${err}`);
+                            setImmediate(() => {
+                                // old null version should be deleted after putting
+                                // new null version
+                                versioningTestUtils.assertDataStoreValues(ds,
+                                    [undefined, objData[1], objData[2]]);
+                                done(err);
+                            });
+                        });
+                });
+        });
+
+        it('should return BadDigest error and not leave orphans in data when ' +
+            'contentMD5 and completedHash do not match', done => {
+            const testPostObjectRequests = new DummyRequest({
+                bucketName,
+                formData: {
+                    bucket: bucketName,
+                    key: objectName,
+                },
+                fileEventData: {},
+                headers: {},
+                url: '/',
+                contentMD5: 'vnR+tLdVF79rPPfF+7YvOg==',
+            }, Buffer.from('I am another body', 'utf8'));
+
+            bucketPut(authInfo, testPutBucketRequest, log, () => {
+                objectPost(authInfo, testPostObjectRequests, undefined, log,
+                        err => {
+                            assert.deepStrictEqual(err, errors.BadDigest);
+                            // orphan objects don't get deleted
+                            // until the next tick
+                            // in memory
+                            setImmediate(() => {
+                                // Data store starts at index 1
+                                assert.strictEqual(ds[0], undefined);
+                                assert.strictEqual(ds[1], undefined);
+                                done();
+                            });
+                        });
+            });
+        });
+    });
+});
+

tests/unit/helpers.js

@@ -374,6 +374,19 @@ const versioningTestUtils = {
         };
         return new DummyRequest(params, body);
     },
+    createPostObjectRequest: (bucketName, keyName, body) => {
+        const params = {
+            bucketName,
+            formData: {
+                bucket: bucketName,
+                key: keyName,
+            },
+            fileEventData: {},
+            headers: {},
+            url: '/',
+        };
+        return new DummyRequest(params, body);
+    },
     createBucketPutVersioningReq: (bucketName, status) => {
         const request = {
             bucketName,

yarn.lock

@@ -16,6 +16,11 @@
     enabled "2.0.x"
     kuler "^2.0.0"
 
+"@fastify/busboy@^2.1.1":
+  version "2.1.1"
+  resolved "https://registry.yarnpkg.com/@fastify/busboy/-/busboy-2.1.1.tgz#b9da6a878a371829a0502c9b6c1c143ef6663f4d"
+  integrity sha512-vBZP4NlzfOlerQTnba4aqZoMhE/a9HY7HRqoOPaETQcSQuWEIyZMHGfVu6w9wGtGK5fED5qRs2DteVCjOH60sA==
+
 "@gar/promisify@^1.0.1":
   version "1.1.3"
   resolved "https://registry.yarnpkg.com/@gar/promisify/-/promisify-1.1.3.tgz#555193ab2e3bb3b6adc3d551c9c030d9e860daf6"
@@ -499,9 +504,9 @@ arraybuffer.slice@~0.0.7:
   optionalDependencies:
     ioctl "^2.0.2"
 
-"arsenal@git+https://github.com/scality/arsenal#7.70.29":
+"arsenal@git+https://github.com/scality/arsenal#b00aea282244cd90efc745941e03d0be7e734fc7":
   version "7.70.29"
-  resolved "git+https://github.com/scality/arsenal#a643a3e6ccbc49327339a285de1d4cb17afcd171"
+  resolved "git+https://github.com/scality/arsenal#b00aea282244cd90efc745941e03d0be7e734fc7"
   dependencies:
     "@js-sdsl/ordered-set" "^4.4.2"
     "@types/async" "^3.2.12"