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// Copyright 2021 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 integration
import (
"context"
tls "crypto/tls"
"fmt"
"strings"
"testing"
"time"
"google.golang.org/grpc"
clientv3 "go.etcd.io/etcd/client/v3"
)
func TestAuthority(t *testing.T) {
tcs := []struct {
name string
useTCP bool
useTLS bool
// Pattern used to generate endpoints for client. Fields filled
// %d - will be filled with member grpc port
// %s - will be filled with member name
clientURLPattern string
// Pattern used to validate authority received by server. Fields filled:
// %d - will be filled with first member grpc port
// %s - will be filled with first member name
expectAuthorityPattern string
}{
{
name: "unix:path",
clientURLPattern: "unix:localhost:%s",
expectAuthorityPattern: "localhost:%s",
},
{
name: "unix://absolute_path",
clientURLPattern: "unix://localhost:%s",
expectAuthorityPattern: "localhost:%s",
},
// "unixs" is not standard schema supported by etcd
{
name: "unixs:absolute_path",
useTLS: true,
clientURLPattern: "unixs:localhost:%s",
expectAuthorityPattern: "localhost:%s",
},
{
name: "unixs://absolute_path",
useTLS: true,
clientURLPattern: "unixs://localhost:%s",
expectAuthorityPattern: "localhost:%s",
},
{
name: "http://domain[:port]",
useTCP: true,
clientURLPattern: "http://localhost:%d",
expectAuthorityPattern: "localhost:%d",
},
{
name: "https://domain[:port]",
useTLS: true,
useTCP: true,
clientURLPattern: "https://localhost:%d",
expectAuthorityPattern: "localhost:%d",
},
{
name: "http://address[:port]",
useTCP: true,
clientURLPattern: "http://127.0.0.1:%d",
expectAuthorityPattern: "127.0.0.1:%d",
},
{
name: "https://address[:port]",
useTCP: true,
useTLS: true,
clientURLPattern: "https://127.0.0.1:%d",
expectAuthorityPattern: "127.0.0.1:%d",
},
}
for _, tc := range tcs {
for _, clusterSize := range []int{1, 3} {
t.Run(fmt.Sprintf("Size: %d, Scenario: %q", clusterSize, tc.name), func(t *testing.T) {
BeforeTest(t)
cfg := ClusterConfig{
Size: clusterSize,
UseTCP: tc.useTCP,
UseIP: tc.useTCP,
}
cfg, tlsConfig := setupTLS(t, tc.useTLS, cfg)
clus := NewClusterV3(t, &cfg)
defer clus.Terminate(t)
kv := setupClient(t, tc.clientURLPattern, clus, tlsConfig)
defer kv.Close()
for i := 0; i < 100; i++ {
_, err := kv.Put(context.TODO(), "foo", "bar")
if err != nil {
t.Fatal(err)
}
}
assertAuthority(t, tc.expectAuthorityPattern, clus)
})
}
}
}
func setupTLS(t *testing.T, useTLS bool, cfg ClusterConfig) (ClusterConfig, *tls.Config) {
t.Helper()
if useTLS {
cfg.ClientTLS = &TestTLSInfo
tlsConfig, err := TestTLSInfo.ClientConfig()
if err != nil {
t.Fatal(err)
}
return cfg, tlsConfig
}
return cfg, nil
}
func setupClient(t *testing.T, endpointPattern string, clus *ClusterV3, tlsConfig *tls.Config) *clientv3.Client {
t.Helper()
endpoints := templateEndpoints(t, endpointPattern, clus)
kv, err := clientv3.New(clientv3.Config{
Endpoints: endpoints,
DialTimeout: 5 * time.Second,
DialOptions: []grpc.DialOption{grpc.WithBlock()},
TLS: tlsConfig,
})
if err != nil {
t.Fatal(err)
}
return kv
}
func templateEndpoints(t *testing.T, pattern string, clus *ClusterV3) []string {
t.Helper()
endpoints := []string{}
for _, m := range clus.Members {
ent := pattern
if strings.Contains(ent, "%d") {
ent = fmt.Sprintf(ent, GrpcPortNumber(m.UniqNumber, m.MemberNumber))
}
if strings.Contains(ent, "%s") {
ent = fmt.Sprintf(ent, m.Name)
}
if strings.Contains(ent, "%") {
t.Fatalf("Failed to template pattern, %% symbol left %q", ent)
}
endpoints = append(endpoints, ent)
}
return endpoints
}
func templateAuthority(t *testing.T, pattern string, m *member) string {
t.Helper()
authority := pattern
if strings.Contains(authority, "%d") {
authority = fmt.Sprintf(authority, GrpcPortNumber(m.UniqNumber, m.MemberNumber))
}
if strings.Contains(authority, "%s") {
authority = fmt.Sprintf(authority, m.Name)
}
if strings.Contains(authority, "%") {
t.Fatalf("Failed to template pattern, %% symbol left %q", authority)
}
return authority
}
func assertAuthority(t *testing.T, expectedAuthorityPattern string, clus *ClusterV3) {
t.Helper()
for _, m := range clus.Members {
requestsFound := 0
expectedAuthority := templateAuthority(t, expectedAuthorityPattern, m)
for _, r := range m.RecordedRequests() {
if r.Authority == expectedAuthority {
requestsFound++
} else {
t.Errorf("Got unexpected authority header, member: %q, request: %q, got authority: %q, expected %q", m.Name, r.FullMethod, r.Authority, expectedAuthority)
}
}
if requestsFound == 0 {
t.Errorf("Expected at least one request with matched authority header value was recorded by the server intercepter on member %s but got 0", m.Name)
}
}
}
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