我对 C# 相当陌生,我需要使用基于 TLS 的 GRPC。
作为一次演练,我正在修改中提供的示例主要 grpc 仓库使用 TLS。为此,我发现了另一个问题,似乎是一个很好的答案:如何为 gRPC 启用服务器端 SSL?。但是,我收到错误Unhandled Exception: Grpc.Core.RpcException: Status(StatusCode=Unavailable, Detail="Connect Failed")
(完整跟踪如下)。
如果我在原始的非 tls 代码中指定了错误的端口或只是不启动服务器,我会收到相同的错误。我在 Ubuntu 上使用 dotnet core。
代码的重要部分如下,也可以在 fork 上找到完整的部分github.
Client:
var cacert = File.ReadAllText(@"../ca.crt");
var clientcert = File.ReadAllText(@"../client.crt");
var clientkey = File.ReadAllText(@"../client.key");
var ssl = new SslCredentials(cacert, new KeyCertificatePair(clientcert, clientkey));
var channel = new Channel("localhost", 555, ssl);
var client = new Greeter.GreeterClient(channel);
String user = "you";
var reply = client.SayHello(new HelloRequest {Name = user});
Console.WriteLine("Greeting: " + reply.Message);
channel.ShutdownAsync().Wait();
Console.WriteLine("Press any key to exit...");
Console.ReadKey();
Server:
var cacert = File.ReadAllText(@"../ca.crt");
var servercert = File.ReadAllText(@"../server.crt");
var serverkey = File.ReadAllText(@"../server.key");
var keypair = new KeyCertificatePair(servercert, serverkey);
var sslCredentials = new SslServerCredentials(new List<KeyCertificatePair>() {keypair}, cacert, false);
var server = new Server
{
Services = {Greeter.BindService(new GreeterImpl())},
Ports = {new ServerPort("0.0.0.0", 555, sslCredentials)}
};
server.Start();
Console.WriteLine("Greeter server listening on port " + Port);
Console.WriteLine("Press any key to stop the server...");
Console.ReadKey();
server.ShutdownAsync().Wait();
程序的完整输出:
$ cd GreeterClient
$ dotnet run -f netcoreapp1.0
Unhandled Exception: Grpc.Core.RpcException: Status(StatusCode=Unavailable, Detail="Connect Failed")
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at Grpc.Core.Internal.AsyncCall`2.UnaryCall(TRequest msg)
at Grpc.Core.DefaultCallInvoker.BlockingUnaryCall[TRequest,TResponse](Method`2 method, String host, CallOptions options, TRequest request)
at Grpc.Core.Internal.InterceptingCallInvoker.BlockingUnaryCall[TRequest,TResponse](Method`2 method, String host, CallOptions options, TRequest request)
at Helloworld.Greeter.GreeterClient.SayHello(HelloRequest request, CallOptions options)
at Helloworld.Greeter.GreeterClient.SayHello(HelloRequest request, Metadata headers, Nullable`1 deadline, CancellationToken cancellationToken)
at GreeterClient.Program.Main(String[] args)
和服务器:
$ cd GreeterServer/
$ dotnet run -f netcoreapp1.0
Greeter server listening on port 50051
Press any key to stop the server...
我是否犯了一些愚蠢的错误,或者这不能在非 Windows 机器上运行?有没有某种方法可以调试问题以弄清楚发生了什么?