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#region Copyright notice and license
// Copyright 2015-2016 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
//
// 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.
#endregion
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Threading;
using System.Threading.Tasks;
using Grpc.Core;
using Grpc.Core.Utils;
using Grpc.Testing;
using NUnit.Framework;
namespace Grpc.IntegrationTesting
{
public class MetadataCredentialsTest
{
const string Host = "localhost";
Server server;
Channel channel;
TestService.TestServiceClient client;
List<ChannelOption> options;
AsyncAuthInterceptor asyncAuthInterceptor;
[SetUp]
public void Init()
{
// Disable SO_REUSEPORT to prevent https://github.com/grpc/grpc/issues/10755
server = new Server(new[] { new ChannelOption(ChannelOptions.SoReuseport, 0) })
{
Services = { TestService.BindService(new FakeTestService()) },
Ports = { { Host, ServerPort.PickUnused, TestCredentials.CreateSslServerCredentials() } }
};
server.Start();
options = new List<ChannelOption>
{
new ChannelOption(ChannelOptions.SslTargetNameOverride, TestCredentials.DefaultHostOverride)
};
asyncAuthInterceptor = new AsyncAuthInterceptor(async (context, metadata) =>
{
await Task.Delay(100).ConfigureAwait(false); // make sure the operation is asynchronous.
metadata.Add("authorization", "SECRET_TOKEN");
});
}
[TearDown]
public void Cleanup()
{
channel.ShutdownAsync().Wait();
server.ShutdownAsync().Wait();
}
[Test]
public void MetadataCredentials()
{
var channelCredentials = ChannelCredentials.Create(TestCredentials.CreateSslCredentials(),
CallCredentials.FromInterceptor(asyncAuthInterceptor));
channel = new Channel(Host, server.Ports.Single().BoundPort, channelCredentials, options);
client = new TestService.TestServiceClient(channel);
client.UnaryCall(new SimpleRequest { });
}
[Test]
public void MetadataCredentials_PerCall()
{
channel = new Channel(Host, server.Ports.Single().BoundPort, TestCredentials.CreateSslCredentials(), options);
client = new TestService.TestServiceClient(channel);
var callCredentials = CallCredentials.FromInterceptor(asyncAuthInterceptor);
client.UnaryCall(new SimpleRequest { }, new CallOptions(credentials: callCredentials));
}
[Test]
public void MetadataCredentials_InterceptorLeavesMetadataEmpty()
{
var channelCredentials = ChannelCredentials.Create(TestCredentials.CreateSslCredentials(),
CallCredentials.FromInterceptor(new AsyncAuthInterceptor((context, metadata) => TaskUtils.CompletedTask)));
channel = new Channel(Host, server.Ports.Single().BoundPort, channelCredentials, options);
client = new TestService.TestServiceClient(channel);
var ex = Assert.Throws<RpcException>(() => client.UnaryCall(new SimpleRequest { }));
// StatusCode.Unknown as the server-side handler throws an exception after not receiving the authorization header.
Assert.AreEqual(StatusCode.Unknown, ex.Status.StatusCode);
}
[Test]
public void MetadataCredentials_InterceptorThrows()
{
var callCredentials = CallCredentials.FromInterceptor(new AsyncAuthInterceptor((context, metadata) =>
{
throw new Exception("Auth interceptor throws");
}));
var channelCredentials = ChannelCredentials.Create(TestCredentials.CreateSslCredentials(), callCredentials);
channel = new Channel(Host, server.Ports.Single().BoundPort, channelCredentials, options);
client = new TestService.TestServiceClient(channel);
var ex = Assert.Throws<RpcException>(() => client.UnaryCall(new SimpleRequest { }));
Assert.AreEqual(StatusCode.Unauthenticated, ex.Status.StatusCode);
}
private class FakeTestService : TestService.TestServiceBase
{
public override Task<SimpleResponse> UnaryCall(SimpleRequest request, ServerCallContext context)
{
var authToken = context.RequestHeaders.First((entry) => entry.Key == "authorization").Value;
Assert.AreEqual("SECRET_TOKEN", authToken);
return Task.FromResult(new SimpleResponse());
}
}
}
}
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