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authority_test.go
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/
authority_test.go
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/*
*
* Copyright 2020 gRPC 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
*
* https://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 test
import (
"context"
"fmt"
"net"
"os"
"sync"
"testing"
"time"
"google.golang.org/grpc"
"google.golang.org/grpc/codes"
"google.golang.org/grpc/metadata"
"google.golang.org/grpc/status"
testpb "google.golang.org/grpc/test/grpc_testing"
)
func authorityChecker(ctx context.Context, expectedAuthority string) (*testpb.Empty, error) {
md, ok := metadata.FromIncomingContext(ctx)
if !ok {
return nil, status.Error(codes.InvalidArgument, "failed to parse metadata")
}
auths, ok := md[":authority"]
if !ok {
return nil, status.Error(codes.InvalidArgument, "no authority header")
}
if len(auths) != 1 {
return nil, status.Error(codes.InvalidArgument, fmt.Sprintf("no authority header, auths = %v", auths))
}
if auths[0] != expectedAuthority {
return nil, status.Error(codes.InvalidArgument, fmt.Sprintf("invalid authority header %v, expected %v", auths[0], expectedAuthority))
}
return &testpb.Empty{}, nil
}
func runUnixTest(t *testing.T, address, target, expectedAuthority string, dialer func(context.Context, string) (net.Conn, error)) {
if err := os.RemoveAll(address); err != nil {
t.Fatalf("Error removing socket file %v: %v\n", address, err)
}
ss := &stubServer{
emptyCall: func(ctx context.Context, _ *testpb.Empty) (*testpb.Empty, error) {
return authorityChecker(ctx, expectedAuthority)
},
network: "unix",
address: address,
target: target,
}
opts := []grpc.DialOption{}
if dialer != nil {
opts = append(opts, grpc.WithContextDialer(dialer))
}
if err := ss.Start(nil, opts...); err != nil {
t.Fatalf("Error starting endpoint server: %v", err)
}
defer ss.Stop()
ctx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
defer cancel()
_, err := ss.client.EmptyCall(ctx, &testpb.Empty{})
if err != nil {
t.Errorf("us.client.EmptyCall(_, _) = _, %v; want _, nil", err)
}
}
// TestUnix does end to end tests with the various supported unix target
// formats, ensuring that the authority is set to localhost in every case.
func (s) TestUnix(t *testing.T) {
tests := []struct {
name string
address string
target string
authority string
}{
{
name: "UnixRelative",
address: "sock.sock",
target: "unix:sock.sock",
authority: "localhost",
},
{
name: "UnixAbsolute",
address: "/tmp/sock.sock",
target: "unix:/tmp/sock.sock",
authority: "localhost",
},
{
name: "UnixAbsoluteAlternate",
address: "/tmp/sock.sock",
target: "unix:https:///tmp/sock.sock",
authority: "localhost",
},
}
for _, test := range tests {
t.Run(test.name, func(t *testing.T) {
runUnixTest(t, test.address, test.target, test.authority, nil)
})
}
}
// TestUnixCustomDialer does end to end tests with various supported unix target
// formats, ensuring that the target sent to the dialer does NOT have the
// "unix:" prefix stripped.
func (s) TestUnixCustomDialer(t *testing.T) {
tests := []struct {
name string
address string
target string
authority string
}{
{
name: "UnixRelative",
address: "sock.sock",
target: "unix:sock.sock",
authority: "localhost",
},
{
name: "UnixAbsolute",
address: "/tmp/sock.sock",
target: "unix:/tmp/sock.sock",
authority: "localhost",
},
}
for _, test := range tests {
t.Run(test.name, func(t *testing.T) {
dialer := func(ctx context.Context, address string) (net.Conn, error) {
if address != test.target {
return nil, fmt.Errorf("expected target %v in custom dialer, instead got %v", test.target, address)
}
address = address[len("unix:"):]
return (&net.Dialer{}).DialContext(ctx, "unix", address)
}
runUnixTest(t, test.address, test.target, test.authority, dialer)
})
}
}
func (s) TestColonPortAuthority(t *testing.T) {
expectedAuthority := ""
var authorityMu sync.Mutex
ss := &stubServer{
emptyCall: func(ctx context.Context, _ *testpb.Empty) (*testpb.Empty, error) {
authorityMu.Lock()
defer authorityMu.Unlock()
return authorityChecker(ctx, expectedAuthority)
},
network: "tcp",
}
if err := ss.Start(nil); err != nil {
t.Fatalf("Error starting endpoint server: %v", err)
}
defer ss.Stop()
_, port, err := net.SplitHostPort(ss.address)
if err != nil {
t.Fatalf("Failed splitting host from post: %v", err)
}
authorityMu.Lock()
expectedAuthority = "localhost:" + port
authorityMu.Unlock()
// ss.Start dials, but not the ":[port]" target that is being tested here.
// Dial again, with ":[port]" as the target.
cc, err := grpc.Dial(":"+port, grpc.WithInsecure())
if err != nil {
t.Fatalf("grpc.Dial(%q) = %v", ss.target, err)
}
defer cc.Close()
ctx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
defer cancel()
_, err = testpb.NewTestServiceClient(cc).EmptyCall(ctx, &testpb.Empty{})
if err != nil {
t.Errorf("us.client.EmptyCall(_, _) = _, %v; want _, nil", err)
}
}