public async Task CanStartAndStopConnectionUsingGivenTransport(HttpTransportType transportType)
{
using (StartVerifiableLog(out var loggerFactory, minLogLevel: LogLevel.Trace, testName: $"CanStartAndStopConnectionUsingGivenTransport_{transportType}"))
{
var url = ServerFixture.Url + "/echo";
var connection = new HttpConnection(new Uri(url), transportType, loggerFactory);
await connection.StartAsync(TransferFormat.Text).OrTimeout();
await connection.DisposeAsync().OrTimeout();
}
}
public async Task CanStartAndStopConnectionUsingGivenTransport(HttpTransportType transportType)
{
using (StartServer <Startup>(out var server))
{
var url = server.Url + "/echo";
var connection = new HttpConnection(new Uri(url), transportType, LoggerFactory);
await connection.StartAsync(TransferFormat.Text).OrTimeout();
await connection.DisposeAsync().OrTimeout();
}
}
public static async Task <int> ExecuteAsync(string baseUrl)
{
baseUrl = string.IsNullOrEmpty(baseUrl) ? "http://localhost:5000/chat" : baseUrl;
var loggerFactory = new LoggerFactory();
var logger = loggerFactory.CreateLogger <Program>();
Console.WriteLine($"Connecting to {baseUrl}...");
var connection = new HttpConnection(new Uri(baseUrl), loggerFactory);
try
{
var cts = new CancellationTokenSource();
connection.OnReceived(data => Console.Out.WriteLineAsync($"{Encoding.UTF8.GetString(data)}"));
connection.Closed += e =>
{
cts.Cancel();
return(Task.CompletedTask);
};
await connection.StartAsync();
Console.WriteLine($"Connected to {baseUrl}");
Console.CancelKeyPress += (sender, a) =>
{
a.Cancel = true;
cts.Cancel();
};
while (!cts.Token.IsCancellationRequested)
{
var line = await Task.Run(() => Console.ReadLine(), cts.Token);
if (line == null)
{
break;
}
await connection.SendAsync(Encoding.UTF8.GetBytes(line), cts.Token);
}
}
catch (AggregateException aex) when(aex.InnerExceptions.All(e => e is OperationCanceledException))
{
}
catch (OperationCanceledException)
{
}
finally
{
await connection.DisposeAsync();
}
return(0);
}
public async Task ConnectionCanSendAndReceiveDifferentMessageSizesWebSocketsTransport(string message)
{
using (StartLog(out var loggerFactory, testName: $"ConnectionCanSendAndReceiveDifferentMessageSizesWebSocketsTransport_{message.Length}"))
{
var logger = loggerFactory.CreateLogger <EndToEndTests>();
var url = _serverFixture.BaseUrl + "/echo";
var connection = new HttpConnection(new Uri(url), TransportType.WebSockets, loggerFactory);
connection.Features.Set <ITransferModeFeature>(
new TransferModeFeature {
TransferMode = TransferMode.Binary
});
try
{
var receiveTcs = new TaskCompletionSource <byte[]>();
connection.Received += data =>
{
logger.LogInformation("Received {length} byte message", data.Length);
receiveTcs.TrySetResult(data);
return(Task.CompletedTask);
};
logger.LogInformation("Starting connection to {url}", url);
await connection.StartAsync().OrTimeout();
logger.LogInformation("Started connection to {url}", url);
var bytes = Encoding.UTF8.GetBytes(message);
logger.LogInformation("Sending {length} byte message", bytes.Length);
await connection.SendAsync(bytes).OrTimeout();
logger.LogInformation("Sent message", bytes.Length);
logger.LogInformation("Receiving message");
var receivedData = await receiveTcs.Task.OrTimeout();
Assert.Equal(message, Encoding.UTF8.GetString(receivedData));
logger.LogInformation("Completed receive");
}
catch (Exception ex)
{
logger.LogInformation(ex, "Test threw exception");
throw;
}
finally
{
logger.LogInformation("Disposing Connection");
await connection.DisposeAsync().OrTimeout();
logger.LogInformation("Disposed Connection");
}
}
}
public async Task ReceivedCallbackNotRaisedAfterConnectionIsDisposed()
{
var mockHttpHandler = new Mock <HttpMessageHandler>();
mockHttpHandler.Protected()
.Setup <Task <HttpResponseMessage> >("SendAsync", ItExpr.IsAny <HttpRequestMessage>(), ItExpr.IsAny <CancellationToken>())
.Returns <HttpRequestMessage, CancellationToken>(async(request, cancellationToken) =>
{
await Task.Yield();
return(IsNegotiateRequest(request)
? ResponseUtils.CreateResponse(HttpStatusCode.OK, ResponseUtils.CreateNegotiationResponse())
: ResponseUtils.CreateResponse(HttpStatusCode.OK));
});
var mockTransport = new Mock <ITransport>();
Channel <byte[], SendMessage> channel = null;
mockTransport.Setup(t => t.StartAsync(It.IsAny <Uri>(), It.IsAny <Channel <byte[], SendMessage> >(), It.IsAny <TransferMode>(), It.IsAny <string>()))
.Returns <Uri, Channel <byte[], SendMessage>, TransferMode, string>((url, c, transferMode, connectionId) =>
{
channel = c;
return(Task.CompletedTask);
});
mockTransport.Setup(t => t.StopAsync())
.Returns(() =>
{
// The connection is now in the Disconnected state so the Received event for
// this message should not be raised
channel.Writer.TryWrite(Array.Empty <byte>());
channel.Writer.TryComplete();
return(Task.CompletedTask);
});
mockTransport.SetupGet(t => t.Mode).Returns(TransferMode.Text);
var connection = new HttpConnection(new Uri("http://fakeuri.org/"), new TestTransportFactory(mockTransport.Object), loggerFactory: null,
httpOptions: new HttpOptions {
HttpMessageHandler = mockHttpHandler.Object
});
var onReceivedInvoked = false;
connection.OnReceived(_ =>
{
onReceivedInvoked = true;
return(Task.CompletedTask);
});
await connection.StartAsync();
await connection.DisposeAsync();
Assert.False(onReceivedInvoked);
}
public async Task TransportThatFallsbackCreatesNewConnection()
{
var url = _serverFixture.Url + "/echo";
// The test should connect to the server using WebSockets transport on Windows 8 and newer.
// On Windows 7/2008R2 it should use ServerSentEvents transport to connect to the server.
// The test logic lives in the TestTransportFactory and FakeTransport.
var connection = new HttpConnection(new Uri(url), new TestTransportFactory(), null, null);
await connection.StartAsync(TransferFormat.Text).OrTimeout();
await connection.DisposeAsync().OrTimeout();
}
private static async Task WithConnectionAsync(HttpConnection connection, Func <HttpConnection, Task> body)
{
try
{
// Using OrTimeout here will hide any timeout issues in the test :(.
await body(connection);
}
finally
{
await connection.DisposeAsync().OrTimeout();
}
}
public async Task ConnectionCanSendAndReceiveMessages(HttpTransportType transportType, TransferFormat requestedTransferFormat)
{
using (StartServer <Startup>(out var server))
{
var logger = LoggerFactory.CreateLogger <EndToEndTests>();
const string message = "Major Key";
var url = server.Url + "/echo";
var connection = new HttpConnection(new Uri(url), transportType, LoggerFactory);
try
{
logger.LogInformation("Starting connection to {url}", url);
await connection.StartAsync(requestedTransferFormat).OrTimeout();
logger.LogInformation("Started connection to {url}", url);
var bytes = Encoding.UTF8.GetBytes(message);
logger.LogInformation("Sending {length} byte message", bytes.Length);
try
{
await connection.Transport.Output.WriteAsync(bytes).OrTimeout();
}
catch (OperationCanceledException)
{
// Because the server and client are run in the same process there is a race where websocket.SendAsync
// can send a message but before returning be suspended allowing the server to run the EchoConnectionHandler and
// send a close frame which triggers a cancellation token on the client and cancels the websocket.SendAsync.
// Our solution to this is to just catch OperationCanceledException from the sent message if the race happens
// because we know the send went through, and its safe to check the response.
}
logger.LogInformation("Sent message");
logger.LogInformation("Receiving message");
Assert.Equal(message, Encoding.UTF8.GetString(await connection.Transport.Input.ReadAsync(bytes.Length).OrTimeout()));
logger.LogInformation("Completed receive");
}
catch (Exception ex)
{
logger.LogInformation(ex, "Test threw exception");
throw;
}
finally
{
logger.LogInformation("Disposing Connection");
await connection.DisposeAsync().OrTimeout();
logger.LogInformation("Disposed Connection");
}
}
}
public async Task EventQueueTimeoutWithException()
{
var mockHttpHandler = new Mock <HttpMessageHandler>();
mockHttpHandler.Protected()
.Setup <Task <HttpResponseMessage> >("SendAsync", ItExpr.IsAny <HttpRequestMessage>(), ItExpr.IsAny <CancellationToken>())
.Returns <HttpRequestMessage, CancellationToken>(async(request, cancellationToken) =>
{
await Task.Yield();
return(IsNegotiateRequest(request)
? ResponseUtils.CreateResponse(HttpStatusCode.OK, ResponseUtils.CreateNegotiationResponse())
: ResponseUtils.CreateResponse(HttpStatusCode.OK));
});
var mockTransport = new Mock <ITransport>();
Channel <byte[], SendMessage> channel = null;
mockTransport.Setup(t => t.StartAsync(It.IsAny <Uri>(), It.IsAny <Channel <byte[], SendMessage> >(), It.IsAny <TransferMode>(), It.IsAny <string>()))
.Returns <Uri, Channel <byte[], SendMessage>, TransferMode, string>((url, c, transferMode, connectionId) =>
{
channel = c;
return(Task.CompletedTask);
});
mockTransport.Setup(t => t.StopAsync())
.Returns(() =>
{
channel.Writer.TryComplete();
return(Task.CompletedTask);
});
mockTransport.SetupGet(t => t.Mode).Returns(TransferMode.Text);
var callbackInvokedTcs = new TaskCompletionSource <object>();
var connection = new HttpConnection(new Uri("http://fakeuri.org/"), new TestTransportFactory(mockTransport.Object), loggerFactory: null,
httpOptions: new HttpOptions {
HttpMessageHandler = mockHttpHandler.Object
});
connection.OnReceived(_ =>
{
throw new OperationCanceledException();
});
await connection.StartAsync();
channel.Writer.TryWrite(Array.Empty <byte>());
// Ensure that SignalR isn't blocked by the receive callback
Assert.False(channel.Reader.TryRead(out var message));
await connection.DisposeAsync();
}
public async Task ConnectionCanSendAndReceiveDifferentMessageSizesWebSocketsTransport(string message)
{
using (StartLog(out var loggerFactory, LogLevel.Trace, testName: $"ConnectionCanSendAndReceiveDifferentMessageSizesWebSocketsTransport_{message.Length}"))
{
var logger = loggerFactory.CreateLogger <EndToEndTests>();
var url = _serverFixture.Url + "/echo";
var connection = new HttpConnection(new Uri(url), TransportType.WebSockets, loggerFactory);
try
{
var receiveTcs = new TaskCompletionSource <byte[]>();
connection.OnReceived((data, state) =>
{
logger.LogInformation("Received {length} byte message", data.Length);
var tcs = (TaskCompletionSource <byte[]>)state;
tcs.TrySetResult(data);
return(Task.CompletedTask);
}, receiveTcs);
logger.LogInformation("Starting connection to {url}", url);
await connection.StartAsync(TransferFormat.Binary).OrTimeout();
logger.LogInformation("Started connection to {url}", url);
var bytes = Encoding.UTF8.GetBytes(message);
logger.LogInformation("Sending {length} byte message", bytes.Length);
await connection.SendAsync(bytes).OrTimeout();
logger.LogInformation("Sent message", bytes.Length);
logger.LogInformation("Receiving message");
// Big timeout here because it can take a while to receive all the bytes
var receivedData = await receiveTcs.Task.OrTimeout(TimeSpan.FromSeconds(30));
Assert.Equal(message, Encoding.UTF8.GetString(receivedData));
logger.LogInformation("Completed receive");
}
catch (Exception ex)
{
logger.LogInformation(ex, "Test threw exception");
throw;
}
finally
{
logger.LogInformation("Disposing Connection");
await connection.DisposeAsync().OrTimeout();
logger.LogInformation("Disposed Connection");
}
}
}
public async Task CanStartAndStopConnectionUsingGivenTransport(HttpTransportType transportType)
{
using (var server = await StartServer <Startup>())
{
var url = server.Url + "/echo";
var connection = new HttpConnection(new HttpConnectionOptions {
Url = new Uri(url), Transports = transportType, DefaultTransferFormat = TransferFormat.Text
}, LoggerFactory);
await connection.StartAsync().OrTimeout();
await connection.DisposeAsync().OrTimeout();
}
}
public async Task CanStartAndStopConnectionUsingDefaultTransport()
{
using (StartServer <Startup>(out var server))
{
var url = server.Url + "/echo";
// The test should connect to the server using WebSockets transport on Windows 8 and newer.
// On Windows 7/2008R2 it should use ServerSentEvents transport to connect to the server.
var connection = new HttpConnection(new Uri(url), HttpTransports.All, LoggerFactory);
await connection.StartAsync(TransferFormat.Binary).OrTimeout();
await connection.DisposeAsync().OrTimeout();
}
}
public async Task HTTPRequestsNotSentWhenWebSocketsTransportRequested()
{
using (StartLog(out var loggerFactory))
{
var logger = loggerFactory.CreateLogger <EndToEndTests>();
var url = _serverFixture.Url + "/echo";
var mockHttpHandler = new Mock <HttpMessageHandler>();
mockHttpHandler.Protected()
.Setup <Task <HttpResponseMessage> >("SendAsync", ItExpr.IsAny <HttpRequestMessage>(), ItExpr.IsAny <CancellationToken>())
.Returns <HttpRequestMessage, CancellationToken>(
(request, cancellationToken) => Task.FromException <HttpResponseMessage>(new InvalidOperationException("HTTP requests should not be sent.")));
var connection = new HttpConnection(new Uri(url), TransportType.WebSockets, loggerFactory, new HttpOptions {
HttpMessageHandler = mockHttpHandler.Object
});
try
{
var receiveTcs = new TaskCompletionSource <byte[]>();
connection.OnReceived((data, state) =>
{
var tcs = (TaskCompletionSource <byte[]>)state;
tcs.TrySetResult(data);
return(Task.CompletedTask);
}, receiveTcs);
var message = new byte[] { 42 };
await connection.StartAsync().OrTimeout();
await connection.SendAsync(message).OrTimeout();
var receivedData = await receiveTcs.Task.OrTimeout();
Assert.Equal(message, receivedData);
}
catch (Exception ex)
{
logger.LogInformation(ex, "Test threw exception");
throw;
}
finally
{
logger.LogInformation("Disposing Connection");
await connection.DisposeAsync().OrTimeout();
logger.LogInformation("Disposed Connection");
}
}
}
public async Task CannotStartDisposedConnection()
{
using (var httpClient = new HttpClient())
{
var connection = new HttpConnection(new Uri("http://fakeuri.org/"));
await connection.DisposeAsync();
var exception =
await Assert.ThrowsAsync <InvalidOperationException>(
async() => await connection.StartAsync());
Assert.Equal("Cannot start a connection that is not in the Initial state.", exception.Message);
}
}
public async Task AuthorizedConnectionCanConnect()
{
bool ExpectedErrors(WriteContext writeContext)
{
return(writeContext.LoggerName == typeof(HttpConnection).FullName &&
writeContext.EventId.Name == "ErrorWithNegotiation");
}
using (var server = await StartServer <Startup>(ExpectedErrors))
{
var logger = LoggerFactory.CreateLogger <EndToEndTests>();
string token;
using (var client = new HttpClient())
{
client.BaseAddress = new Uri(server.Url);
var response = await client.GetAsync("generatetoken?user=bob");
token = await response.Content.ReadAsStringAsync();
}
var url = server.Url + "/auth";
var connection = new HttpConnection(
new HttpConnectionOptions()
{
Url = new Uri(url),
AccessTokenProvider = () => Task.FromResult(token),
Transports = HttpTransportType.ServerSentEvents,
DefaultTransferFormat = TransferFormat.Text,
},
LoggerFactory);
try
{
logger.LogInformation("Starting connection to {url}", url);
await connection.StartAsync().OrTimeout();
logger.LogInformation("Connected to {url}", url);
}
finally
{
logger.LogInformation("Disposing Connection");
await connection.DisposeAsync().OrTimeout();
logger.LogInformation("Disposed Connection");
}
}
}
public async Task HttpRequestsNotSentWhenWebSocketsTransportRequestedAndSkipNegotiationSet()
{
using (StartServer <Startup>(out var server))
{
var logger = LoggerFactory.CreateLogger <EndToEndTests>();
var url = server.Url + "/echo";
var mockHttpHandler = new Mock <HttpMessageHandler>();
mockHttpHandler.Protected()
.Setup <Task <HttpResponseMessage> >("SendAsync", ItExpr.IsAny <HttpRequestMessage>(), ItExpr.IsAny <CancellationToken>())
.Returns <HttpRequestMessage, CancellationToken>(
(request, cancellationToken) => Task.FromException <HttpResponseMessage>(new InvalidOperationException("HTTP requests should not be sent.")));
var httpOptions = new HttpConnectionOptions
{
Url = new Uri(url),
Transports = HttpTransportType.WebSockets,
SkipNegotiation = true,
HttpMessageHandlerFactory = (httpMessageHandler) => mockHttpHandler.Object
};
var connection = new HttpConnection(httpOptions, LoggerFactory);
try
{
var message = new byte[] { 42 };
await connection.StartAsync(TransferFormat.Binary).OrTimeout();
await connection.Transport.Output.WriteAsync(message).OrTimeout();
var receivedData = await connection.Transport.Input.ReadAsync(1);
Assert.Equal(message, receivedData);
}
catch (Exception ex)
{
logger.LogInformation(ex, "Test threw exception");
throw;
}
finally
{
logger.LogInformation("Disposing Connection");
await connection.DisposeAsync().OrTimeout();
logger.LogInformation("Disposed Connection");
}
}
}
public async Task ClosedEventNotRaisedWhenTheClientIsStoppedButWasNeverStarted()
{
var connection = new HttpConnection(new Uri("http://fakeuri.org/"));
bool closedEventRaised = false;
connection.Closed += e =>
{
closedEventRaised = true;
return(Task.CompletedTask);
};
await connection.DisposeAsync();
Assert.False(closedEventRaised);
}
public async Task CanStopStartingConnection()
{
// Used to make sure StartAsync is not completed before DisposeAsync is called
var releaseNegotiateTcs = new TaskCompletionSource <object>();
// Used to make sure that DisposeAsync runs after we check the state in StartAsync
var allowDisposeTcs = new TaskCompletionSource <object>();
// Used to make sure that DisposeAsync continues only after StartAsync finished
var releaseDisposeTcs = new TaskCompletionSource <object>();
var mockHttpHandler = new Mock <HttpMessageHandler>();
mockHttpHandler.Protected()
.Setup <Task <HttpResponseMessage> >("SendAsync", ItExpr.IsAny <HttpRequestMessage>(), ItExpr.IsAny <CancellationToken>())
.Returns <HttpRequestMessage, CancellationToken>(async(request, cancellationToken) =>
{
await Task.Yield();
// allow DisposeAsync to continue once we know we are past the connection state check
allowDisposeTcs.SetResult(null);
await releaseNegotiateTcs.Task;
return(IsNegotiateRequest(request)
? ResponseUtils.CreateResponse(HttpStatusCode.OK, ResponseUtils.CreateNegotiationResponse())
: ResponseUtils.CreateResponse(HttpStatusCode.OK));
});
var transport = new Mock <ITransport>();
transport.Setup(t => t.StopAsync()).Returns(async() => { await releaseDisposeTcs.Task; });
var connection = new HttpConnection(new Uri("http://fakeuri.org/"), new TestTransportFactory(transport.Object), loggerFactory: null,
httpOptions: new HttpOptions {
HttpMessageHandler = mockHttpHandler.Object
});
var startTask = connection.StartAsync();
await allowDisposeTcs.Task;
var disposeTask = connection.DisposeAsync();
// allow StartAsync to continue once DisposeAsync has started
releaseNegotiateTcs.SetResult(null);
// unblock DisposeAsync only after StartAsync completed
await startTask.OrTimeout();
releaseDisposeTcs.SetResult(null);
await disposeTask.OrTimeout();
transport.Verify(t => t.StartAsync(It.IsAny <Uri>(), It.IsAny <Channel <byte[], SendMessage> >(), It.IsAny <TransferMode>(), It.IsAny <string>()), Times.Never);
}
public async Task CanStartConnectionWithoutSettingTransferModeFeature()
{
var mockHttpHandler = new Mock <HttpMessageHandler>();
mockHttpHandler.Protected()
.Setup <Task <HttpResponseMessage> >("SendAsync", ItExpr.IsAny <HttpRequestMessage>(), ItExpr.IsAny <CancellationToken>())
.Returns <HttpRequestMessage, CancellationToken>(async(request, cancellationToken) =>
{
await Task.Yield();
return(IsNegotiateRequest(request)
? ResponseUtils.CreateResponse(HttpStatusCode.OK, ResponseUtils.CreateNegotiationResponse())
: ResponseUtils.CreateResponse(HttpStatusCode.OK));
});
var mockTransport = new Mock <ITransport>();
Channel <byte[], SendMessage> channel = null;
mockTransport.Setup(t => t.StartAsync(It.IsAny <Uri>(), It.IsAny <Channel <byte[], SendMessage> >(), It.IsAny <TransferMode>(), It.IsAny <string>()))
.Returns <Uri, Channel <byte[], SendMessage>, TransferMode, string>((url, c, transferMode, connectionId) =>
{
channel = c;
return(Task.CompletedTask);
});
mockTransport.Setup(t => t.StopAsync())
.Returns(() =>
{
channel.Writer.TryComplete();
return(Task.CompletedTask);
});
mockTransport.SetupGet(t => t.Mode).Returns(TransferMode.Binary);
var connection = new HttpConnection(new Uri("http://fakeuri.org/"), new TestTransportFactory(mockTransport.Object),
loggerFactory: null, httpOptions: new HttpOptions {
HttpMessageHandler = mockHttpHandler.Object
});
await connection.StartAsync().OrTimeout();
var transferModeFeature = connection.Features.Get <ITransferModeFeature>();
await connection.DisposeAsync().OrTimeout();
mockTransport.Verify(t => t.StartAsync(
It.IsAny <Uri>(), It.IsAny <Channel <byte[], SendMessage> >(), TransferMode.Text, It.IsAny <string>()), Times.Once);
Assert.NotNull(transferModeFeature);
Assert.Equal(TransferMode.Binary, transferModeFeature.TransferMode);
}
public async Task ConnectionCanSendAndReceiveDifferentMessageSizesWebSocketsTransport(int length)
{
var message = new string('A', length);
using (StartServer <Startup>(out var server))
{
var logger = LoggerFactory.CreateLogger <EndToEndTests>();
var url = server.Url + "/echo";
var connection = new HttpConnection(new Uri(url), HttpTransportType.WebSockets, LoggerFactory);
try
{
logger.LogInformation("Starting connection to {url}", url);
await connection.StartAsync(TransferFormat.Binary).OrTimeout();
logger.LogInformation("Started connection to {url}", url);
var bytes = Encoding.UTF8.GetBytes(message);
logger.LogInformation("Sending {length} byte message", bytes.Length);
await connection.Transport.Output.WriteAsync(bytes).OrTimeout();
logger.LogInformation("Sent message");
logger.LogInformation("Receiving message");
// Big timeout here because it can take a while to receive all the bytes
var receivedData = await connection.Transport.Input.ReadAsync(bytes.Length).OrTimeout(TimeSpan.FromMinutes(2));
Assert.Equal(message, Encoding.UTF8.GetString(receivedData));
logger.LogInformation("Completed receive");
}
catch (Exception ex)
{
logger.LogInformation(ex, "Test threw exception");
throw;
}
finally
{
logger.LogInformation("Disposing Connection");
await connection.DisposeAsync().OrTimeout();
logger.LogInformation("Disposed Connection");
}
}
}
/// <inheritdoc />
public async Task <ConnectionContext> ConnectAsync(TransferFormat transferFormat, CancellationToken cancellationToken = default)
{
var connection = new HttpConnection(_httpConnectionOptions, _loggerFactory);
try
{
await connection.StartAsync(transferFormat, cancellationToken);
return(connection);
}
catch
{
// Make sure the connection is disposed, in case it allocated any resources before failing.
await connection.DisposeAsync();
throw;
}
}
public static async Task <int> ExecuteAsync(string baseUrl)
{
baseUrl = string.IsNullOrEmpty(baseUrl) ? "http://localhost:5000/chat" : baseUrl;
Console.WriteLine($"Connecting to {baseUrl}...");
var connectionOptions = new HttpConnectionOptions
{
Url = new Uri(baseUrl),
DefaultTransferFormat = TransferFormat.Text,
};
var connection = new HttpConnection(connectionOptions, loggerFactory: null);
try
{
await connection.StartAsync();
Console.WriteLine($"Connected to {baseUrl}");
var shutdown = new TaskCompletionSource <object>();
Console.CancelKeyPress += (sender, a) =>
{
a.Cancel = true;
shutdown.TrySetResult(null);
};
_ = ReceiveLoop(Console.Out, connection.Transport.Input);
_ = SendLoop(Console.In, connection.Transport.Output);
await shutdown.Task;
}
catch (AggregateException aex) when(aex.InnerExceptions.All(e => e is OperationCanceledException))
{
}
catch (OperationCanceledException)
{
}
finally
{
await connection.DisposeAsync();
}
return(0);
}
public async Task CanSendData()
{
var data = new byte[] { 1, 1, 2, 3, 5, 8 };
var sendTcs = new TaskCompletionSource <byte[]>();
var mockHttpHandler = new Mock <HttpMessageHandler>();
mockHttpHandler.Protected()
.Setup <Task <HttpResponseMessage> >("SendAsync", ItExpr.IsAny <HttpRequestMessage>(), ItExpr.IsAny <CancellationToken>())
.Returns <HttpRequestMessage, CancellationToken>(async(request, cancellationToken) =>
{
await Task.Yield();
if (IsNegotiateRequest(request))
{
return(ResponseUtils.CreateResponse(HttpStatusCode.OK, ResponseUtils.CreateNegotiationResponse()));
}
if (request.Method == HttpMethod.Post)
{
sendTcs.SetResult(await request.Content.ReadAsByteArrayAsync());
}
return(ResponseUtils.CreateResponse(HttpStatusCode.OK));
});
var connection = new HttpConnection(new Uri("http://fakeuri.org/"), TransportType.LongPolling, loggerFactory: null,
httpOptions: new HttpOptions {
HttpMessageHandler = mockHttpHandler.Object
});
try
{
await connection.StartAsync();
await connection.SendAsync(data);
Assert.Equal(data, await sendTcs.Task.OrTimeout());
}
finally
{
await connection.DisposeAsync();
}
}
public async Task query(string requested, string expectedNegotiate)
{
var mockHttpHandler = new Mock <HttpMessageHandler>();
mockHttpHandler.Protected()
.Setup <Task <HttpResponseMessage> >("SendAsync", ItExpr.IsAny <HttpRequestMessage>(), ItExpr.IsAny <CancellationToken>())
.Returns <HttpRequestMessage, CancellationToken>(async(request, cancellationToken) =>
{
await Task.Yield();
Assert.Equal(expectedNegotiate, request.RequestUri.ToString());
return(ResponseUtils.CreateResponse(HttpStatusCode.OK,
ResponseUtils.CreateNegotiationResponse()));
});
var connection = new HttpConnection(new Uri(requested), TransportType.LongPolling, loggerFactory: null, httpMessageHandler: mockHttpHandler.Object);
await connection.StartAsync().OrTimeout();
await connection.DisposeAsync().OrTimeout();
}
public async Task CannotSendAfterReceiveThrewException()
{
var mockHttpHandler = new Mock <HttpMessageHandler>();
mockHttpHandler.Protected()
.Setup <Task <HttpResponseMessage> >("SendAsync", ItExpr.IsAny <HttpRequestMessage>(), ItExpr.IsAny <CancellationToken>())
.Returns <HttpRequestMessage, CancellationToken>(async(request, cancellationToken) =>
{
await Task.Yield();
return(request.Method == HttpMethod.Get
? ResponseUtils.CreateResponse(HttpStatusCode.InternalServerError)
: request.Method == HttpMethod.Options
? ResponseUtils.CreateResponse(HttpStatusCode.OK, ResponseUtils.CreateNegotiationResponse())
: ResponseUtils.CreateResponse(HttpStatusCode.OK));
});
var connection = new HttpConnection(new Uri("http://fakeuri.org/"), TransportType.LongPolling, loggerFactory: null, httpMessageHandler: mockHttpHandler.Object);
try
{
var closeTcs = new TaskCompletionSource <Exception>();
connection.Closed += e =>
{
closeTcs.TrySetResult(e);
return(Task.CompletedTask);
};
await connection.StartAsync();
// Exception in send should shutdown the connection
await closeTcs.Task.OrTimeout();
var exception = await Assert.ThrowsAsync <InvalidOperationException>(
async() => await connection.SendAsync(new byte[0]));
Assert.Equal("Cannot send messages when the connection is not in the Connected state.", exception.Message);
}
finally
{
await connection.DisposeAsync();
}
}
public async Task HttpConnectionThrowsIfSkipNegotiationSetAndTransportIsNotWebSockets(HttpTransportType transportType)
{
using (StartServer <Startup>(out var server))
{
var logger = LoggerFactory.CreateLogger <EndToEndTests>();
var url = server.Url + "/echo";
var mockHttpHandler = new Mock <HttpMessageHandler>();
mockHttpHandler.Protected()
.Setup <Task <HttpResponseMessage> >("SendAsync", ItExpr.IsAny <HttpRequestMessage>(), ItExpr.IsAny <CancellationToken>())
.Returns <HttpRequestMessage, CancellationToken>(
(request, cancellationToken) => Task.FromException <HttpResponseMessage>(new InvalidOperationException("HTTP requests should not be sent.")));
var httpOptions = new HttpConnectionOptions
{
Url = new Uri(url),
Transports = transportType,
SkipNegotiation = true,
HttpMessageHandlerFactory = (httpMessageHandler) => mockHttpHandler.Object
};
var connection = new HttpConnection(httpOptions, LoggerFactory);
try
{
var exception = await Assert.ThrowsAsync <InvalidOperationException>(() => connection.StartAsync(TransferFormat.Binary).OrTimeout());
Assert.Equal("Negotiation can only be skipped when using the WebSocket transport directly.", exception.Message);
}
catch (Exception ex)
{
logger.LogInformation(ex, "Test threw exception");
throw;
}
finally
{
await connection.DisposeAsync().OrTimeout();
}
}
}
/// <summary>
/// Creates a new connection to an <see cref="UriEndPoint"/>.
/// </summary>
/// <param name="endPoint">The <see cref="UriEndPoint"/> to connect to.</param>
/// <param name="cancellationToken">The token to monitor for cancellation requests. The default value is <see cref="CancellationToken.None" />.</param>
/// <returns>
/// A <see cref="ValueTask{TResult}" /> that represents the asynchronous connect, yielding the <see cref="ConnectionContext" /> for the new connection when completed.
/// </returns>
public async ValueTask <ConnectionContext> ConnectAsync(EndPoint endPoint, CancellationToken cancellationToken = default)
{
if (endPoint == null)
{
throw new ArgumentNullException(nameof(endPoint));
}
if (!(endPoint is UriEndPoint uriEndPoint))
{
throw new NotSupportedException($"The provided {nameof(EndPoint)} must be of type {nameof(UriEndPoint)}.");
}
if (_httpConnectionOptions.Url != null && _httpConnectionOptions.Url != uriEndPoint.Uri)
{
throw new InvalidOperationException($"If {nameof(HttpConnectionOptions)}.{nameof(HttpConnectionOptions.Url)} was set, it must match the {nameof(UriEndPoint)}.{nameof(UriEndPoint.Uri)} passed to {nameof(ConnectAsync)}.");
}
// Shallow copy before setting the Url property so we don't mutate the user-defined options object.
var shallowCopiedOptions = ShallowCopyHttpConnectionOptions(_httpConnectionOptions);
shallowCopiedOptions.Url = uriEndPoint.Uri;
var connection = new HttpConnection(shallowCopiedOptions, _loggerFactory);
try
{
await connection.StartAsync(cancellationToken);
return(connection);
}
catch
{
// Make sure the connection is disposed, in case it allocated any resources before failing.
await connection.DisposeAsync();
throw;
}
}
public async Task TransportThatFallsbackCreatesNewConnection()
{
bool ExpectedErrors(WriteContext writeContext)
{
return(writeContext.LoggerName == typeof(HttpConnection).FullName &&
writeContext.EventId.Name == "ErrorStartingTransport");
}
using (StartServer <Startup>(out var server, expectedErrorsFilter: ExpectedErrors))
{
var url = server.Url + "/echo";
// The test should connect to the server using WebSockets transport on Windows 8 and newer.
// On Windows 7/2008R2 it should use ServerSentEvents transport to connect to the server.
// The test logic lives in the TestTransportFactory and FakeTransport.
var connection = new HttpConnection(new HttpConnectionOptions {
Url = new Uri(url)
}, LoggerFactory, new TestTransportFactory());
await connection.StartAsync(TransferFormat.Text).OrTimeout();
await connection.DisposeAsync().OrTimeout();
}
}
public async Task ClosedEventRaisedWhenConnectionToServerLost()
{
var mockHttpHandler = new Mock <HttpMessageHandler>();
mockHttpHandler.Protected()
.Setup <Task <HttpResponseMessage> >("SendAsync", ItExpr.IsAny <HttpRequestMessage>(), ItExpr.IsAny <CancellationToken>())
.Returns <HttpRequestMessage, CancellationToken>(async(request, cancellationToken) =>
{
await Task.Yield();
return(request.Method == HttpMethod.Get
? ResponseUtils.CreateResponse(HttpStatusCode.InternalServerError)
: request.Method == HttpMethod.Options
? ResponseUtils.CreateResponse(HttpStatusCode.OK, ResponseUtils.CreateNegotiationResponse())
: ResponseUtils.CreateResponse(HttpStatusCode.OK));
});
var connection = new HttpConnection(new Uri("http://fakeuri.org/"), TransportType.LongPolling, loggerFactory: null, httpMessageHandler: mockHttpHandler.Object);
var closedEventTcs = new TaskCompletionSource <Exception>();
connection.Closed += e =>
{
closedEventTcs.TrySetResult(e);
return(Task.CompletedTask);
};
try
{
await connection.StartAsync();
Assert.IsType <HttpRequestException>(await closedEventTcs.Task.OrTimeout());
}
finally
{
await connection.DisposeAsync();
}
}
public async Task TransportIsStoppedWhenConnectionIsStopped()
{
var mockHttpHandler = new Mock <HttpMessageHandler>();
mockHttpHandler.Protected()
.Setup <Task <HttpResponseMessage> >("SendAsync", ItExpr.IsAny <HttpRequestMessage>(), ItExpr.IsAny <CancellationToken>())
.Returns <HttpRequestMessage, CancellationToken>(async(request, cancellationToken) =>
{
await Task.Yield();
return(IsNegotiateRequest(request)
? ResponseUtils.CreateResponse(HttpStatusCode.OK, ResponseUtils.CreateNegotiationResponse())
: ResponseUtils.CreateResponse(HttpStatusCode.OK));
});
using (var httpClient = new HttpClient(mockHttpHandler.Object))
{
var longPollingTransport = new LongPollingTransport(httpClient, null, new LoggerFactory());
var connection = new HttpConnection(new Uri("http://fakeuri.org/"), new TestTransportFactory(longPollingTransport), loggerFactory: null,
httpOptions: new HttpOptions {
HttpMessageHandler = mockHttpHandler.Object
});
try
{
await connection.StartAsync();
Assert.False(longPollingTransport.Running.IsCompleted);
}
finally
{
await connection.DisposeAsync();
}
await longPollingTransport.Running.OrTimeout();
}
}