309 lines
7.2 KiB
Go
309 lines
7.2 KiB
Go
// Copyright 2015 The etcd Authors
|
|
//
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
|
// you may not use this file except in compliance with the License.
|
|
// You may obtain a copy of the License at
|
|
//
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
|
|
package srv
|
|
|
|
import (
|
|
"errors"
|
|
"fmt"
|
|
"net"
|
|
"reflect"
|
|
"strings"
|
|
"testing"
|
|
|
|
"go.etcd.io/etcd/client/pkg/v3/testutil"
|
|
)
|
|
|
|
func notFoundErr(service, proto, domain string) error {
|
|
name := fmt.Sprintf("_%s._%s.%s", service, proto, domain)
|
|
return &net.DNSError{Err: "no such host", Name: name, Server: "10.0.0.53:53", IsTimeout: false, IsTemporary: false, IsNotFound: true}
|
|
}
|
|
|
|
func TestSRVGetCluster(t *testing.T) {
|
|
defer func() {
|
|
lookupSRV = net.LookupSRV
|
|
resolveTCPAddr = net.ResolveTCPAddr
|
|
}()
|
|
|
|
hasErr := func(err error) bool {
|
|
return err != nil
|
|
}
|
|
|
|
name := "dnsClusterTest"
|
|
dns := map[string]string{
|
|
"1.example.com.:2480": "10.0.0.1:2480",
|
|
"2.example.com.:2480": "10.0.0.2:2480",
|
|
"3.example.com.:2480": "10.0.0.3:2480",
|
|
"4.example.com.:2380": "10.0.0.3:2380",
|
|
}
|
|
srvAll := []*net.SRV{
|
|
{Target: "1.example.com.", Port: 2480},
|
|
{Target: "2.example.com.", Port: 2480},
|
|
{Target: "3.example.com.", Port: 2480},
|
|
}
|
|
var srvNone []*net.SRV
|
|
|
|
tests := []struct {
|
|
service string
|
|
scheme string
|
|
withSSL []*net.SRV
|
|
withoutSSL []*net.SRV
|
|
urls []string
|
|
expected string
|
|
werr bool
|
|
}{
|
|
{
|
|
"etcd-server-ssl",
|
|
"https",
|
|
srvNone,
|
|
srvNone,
|
|
nil,
|
|
"",
|
|
true,
|
|
},
|
|
{
|
|
"etcd-server-ssl",
|
|
"https",
|
|
srvAll,
|
|
srvNone,
|
|
nil,
|
|
"0=https://1.example.com:2480,1=https://2.example.com:2480,2=https://3.example.com:2480",
|
|
false,
|
|
},
|
|
{
|
|
"etcd-server",
|
|
"http",
|
|
srvNone,
|
|
srvAll,
|
|
nil,
|
|
"0=http://1.example.com:2480,1=http://2.example.com:2480,2=http://3.example.com:2480",
|
|
false,
|
|
},
|
|
{
|
|
"etcd-server-ssl",
|
|
"https",
|
|
srvAll,
|
|
srvNone,
|
|
[]string{"https://10.0.0.1:2480"},
|
|
"dnsClusterTest=https://1.example.com:2480,0=https://2.example.com:2480,1=https://3.example.com:2480",
|
|
false,
|
|
},
|
|
// matching local member with resolved addr and return unresolved hostnames
|
|
{
|
|
"etcd-server-ssl",
|
|
"https",
|
|
srvAll,
|
|
srvNone,
|
|
[]string{"https://10.0.0.1:2480"},
|
|
"dnsClusterTest=https://1.example.com:2480,0=https://2.example.com:2480,1=https://3.example.com:2480",
|
|
false,
|
|
},
|
|
// reject if apurls are TLS but SRV is only http
|
|
{
|
|
"etcd-server",
|
|
"http",
|
|
srvNone,
|
|
srvAll,
|
|
[]string{"https://10.0.0.1:2480"},
|
|
"0=http://2.example.com:2480,1=http://3.example.com:2480",
|
|
false,
|
|
},
|
|
}
|
|
|
|
resolveTCPAddr = func(network, addr string) (*net.TCPAddr, error) {
|
|
if strings.Contains(addr, "10.0.0.") {
|
|
// accept IP addresses when resolving apurls
|
|
return net.ResolveTCPAddr(network, addr)
|
|
}
|
|
if dns[addr] == "" {
|
|
return nil, errors.New("missing dns record")
|
|
}
|
|
return net.ResolveTCPAddr(network, dns[addr])
|
|
}
|
|
|
|
for i, tt := range tests {
|
|
lookupSRV = func(service string, proto string, domain string) (string, []*net.SRV, error) {
|
|
if service == "etcd-server-ssl" {
|
|
if len(tt.withSSL) > 0 {
|
|
return "", tt.withSSL, nil
|
|
}
|
|
return "", nil, notFoundErr(service, proto, domain)
|
|
}
|
|
if service == "etcd-server" {
|
|
if len(tt.withoutSSL) > 0 {
|
|
return "", tt.withoutSSL, nil
|
|
}
|
|
return "", nil, notFoundErr(service, proto, domain)
|
|
}
|
|
return "", nil, errors.New("unknown service in mock")
|
|
}
|
|
|
|
urls := testutil.MustNewURLs(t, tt.urls)
|
|
str, err := GetCluster(tt.scheme, tt.service, name, "example.com", urls)
|
|
|
|
if hasErr(err) != tt.werr {
|
|
t.Fatalf("%d: err = %#v, want = %#v", i, err, tt.werr)
|
|
}
|
|
if strings.Join(str, ",") != tt.expected {
|
|
t.Errorf("#%d: cluster = %s, want %s", i, str, tt.expected)
|
|
}
|
|
}
|
|
}
|
|
|
|
func TestSRVDiscover(t *testing.T) {
|
|
defer func() { lookupSRV = net.LookupSRV }()
|
|
|
|
hasErr := func(err error) bool {
|
|
return err != nil
|
|
}
|
|
|
|
tests := []struct {
|
|
withSSL []*net.SRV
|
|
withoutSSL []*net.SRV
|
|
expected []string
|
|
werr bool
|
|
}{
|
|
{
|
|
[]*net.SRV{},
|
|
[]*net.SRV{},
|
|
[]string{},
|
|
true,
|
|
},
|
|
{
|
|
[]*net.SRV{},
|
|
[]*net.SRV{
|
|
{Target: "10.0.0.1", Port: 2480},
|
|
{Target: "10.0.0.2", Port: 2480},
|
|
{Target: "10.0.0.3", Port: 2480},
|
|
},
|
|
[]string{"http://10.0.0.1:2480", "http://10.0.0.2:2480", "http://10.0.0.3:2480"},
|
|
false,
|
|
},
|
|
{
|
|
[]*net.SRV{
|
|
{Target: "10.0.0.1", Port: 2480},
|
|
{Target: "10.0.0.2", Port: 2480},
|
|
{Target: "10.0.0.3", Port: 2480},
|
|
},
|
|
[]*net.SRV{},
|
|
[]string{"https://10.0.0.1:2480", "https://10.0.0.2:2480", "https://10.0.0.3:2480"},
|
|
false,
|
|
},
|
|
{
|
|
[]*net.SRV{
|
|
{Target: "10.0.0.1", Port: 2480},
|
|
{Target: "10.0.0.2", Port: 2480},
|
|
{Target: "10.0.0.3", Port: 2480},
|
|
},
|
|
[]*net.SRV{
|
|
{Target: "10.0.0.1", Port: 7001},
|
|
},
|
|
[]string{"https://10.0.0.1:2480", "https://10.0.0.2:2480", "https://10.0.0.3:2480", "http://10.0.0.1:7001"},
|
|
false,
|
|
},
|
|
{
|
|
[]*net.SRV{
|
|
{Target: "10.0.0.1", Port: 2480},
|
|
{Target: "10.0.0.2", Port: 2480},
|
|
{Target: "10.0.0.3", Port: 2480},
|
|
},
|
|
[]*net.SRV{
|
|
{Target: "10.0.0.1", Port: 7001},
|
|
},
|
|
[]string{"https://10.0.0.1:2480", "https://10.0.0.2:2480", "https://10.0.0.3:2480", "http://10.0.0.1:7001"},
|
|
false,
|
|
},
|
|
{
|
|
[]*net.SRV{
|
|
{Target: "a.example.com", Port: 2480},
|
|
{Target: "b.example.com", Port: 2480},
|
|
{Target: "c.example.com.", Port: 2480},
|
|
},
|
|
[]*net.SRV{},
|
|
[]string{"https://a.example.com:2480", "https://b.example.com:2480", "https://c.example.com.:2480"},
|
|
false,
|
|
},
|
|
}
|
|
|
|
for i, tt := range tests {
|
|
lookupSRV = func(service string, proto string, domain string) (string, []*net.SRV, error) {
|
|
if service == "etcd-client-ssl" {
|
|
if len(tt.withSSL) > 0 {
|
|
return "", tt.withSSL, nil
|
|
}
|
|
return "", nil, notFoundErr(service, proto, domain)
|
|
}
|
|
if service == "etcd-client" {
|
|
if len(tt.withoutSSL) > 0 {
|
|
return "", tt.withoutSSL, nil
|
|
}
|
|
return "", nil, notFoundErr(service, proto, domain)
|
|
}
|
|
return "", nil, errors.New("unknown service in mock")
|
|
}
|
|
|
|
srvs, err := GetClient("etcd-client", "example.com", "")
|
|
|
|
if hasErr(err) != tt.werr {
|
|
t.Fatalf("%d: err = %#v, want = %#v", i, err, tt.werr)
|
|
}
|
|
if srvs == nil {
|
|
if len(tt.expected) > 0 {
|
|
t.Errorf("#%d: srvs = nil, want non-nil", i)
|
|
}
|
|
} else {
|
|
if !reflect.DeepEqual(srvs.Endpoints, tt.expected) {
|
|
t.Errorf("#%d: endpoints = %v, want = %v", i, srvs.Endpoints, tt.expected)
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
func TestGetSRVService(t *testing.T) {
|
|
tests := []struct {
|
|
scheme string
|
|
serviceName string
|
|
|
|
expected string
|
|
}{
|
|
{
|
|
"https",
|
|
"",
|
|
"etcd-client-ssl",
|
|
},
|
|
{
|
|
"http",
|
|
"",
|
|
"etcd-client",
|
|
},
|
|
{
|
|
"https",
|
|
"foo",
|
|
"etcd-client-ssl-foo",
|
|
},
|
|
{
|
|
"http",
|
|
"bar",
|
|
"etcd-client-bar",
|
|
},
|
|
}
|
|
|
|
for i, tt := range tests {
|
|
service := GetSRVService("etcd-client", tt.serviceName, tt.scheme)
|
|
if strings.Compare(service, tt.expected) != 0 {
|
|
t.Errorf("#%d: service = %s, want %s", i, service, tt.expected)
|
|
}
|
|
}
|
|
}
|