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Separate request rejection from bad request state setting.

This commit is contained in:
Cesar Blum Silveira 2016-10-12 10:12:01 -07:00
parent f1071dea50
commit 78584799a4
3 changed files with 134 additions and 63 deletions
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41
src/Microsoft.AspNetCore.Server.Kestrel/Internal/Http/Frame.cs
View File

@ -47,7 +47,6 @@ namespace Microsoft.AspNetCore.Server.Kestrel.Internal.Http
private readonly object _onStartingSync = new Object();
private readonly object _onCompletedSync = new Object();
protected bool _requestRejected;
private Streams _frameStreams;
protected Stack<KeyValuePair<Func<object, Task>, object>> _onStarting;
@ -64,6 +63,7 @@ namespace Microsoft.AspNetCore.Server.Kestrel.Internal.Http
private bool _canHaveBody;
private bool _autoChunk;
protected Exception _applicationException;
private BadHttpRequestException _requestRejectedException;
protected HttpVersion _httpVersion;
@ -717,7 +717,7 @@ namespace Microsoft.AspNetCore.Server.Kestrel.Internal.Http
protected Task TryProduceInvalidRequestResponse()
{
if (_requestRejected)
if (_requestRejectedException != null)
{
if (FrameRequestHeaders == null || FrameResponseHeaders == null)
{
@ -732,7 +732,7 @@ namespace Microsoft.AspNetCore.Server.Kestrel.Internal.Http
protected Task ProduceEnd()
{
if (_requestRejected || _applicationException != null)
if (_requestRejectedException != null || _applicationException != null)
{
if (HasResponseStarted)
{
@ -741,8 +741,13 @@ namespace Microsoft.AspNetCore.Server.Kestrel.Internal.Http
return TaskCache.CompletedTask;
}
// If the request was rejected, the error state has already been set by SetBadRequestState
if (!_requestRejected)
// If the request was rejected, the error state has already been set by SetBadRequestState and
// that should take precedence.
if (_requestRejectedException != null)
{
SetErrorResponseHeaders(statusCode: _requestRejectedException.StatusCode);
}
else
{
// 500 Internal Server Error
SetErrorResponseHeaders(statusCode: 500);
@ -1394,24 +1399,19 @@ namespace Microsoft.AspNetCore.Server.Kestrel.Internal.Http
_applicationException);
}
public void RejectRequest(string message)
{
throw new ObjectDisposedException(
"The response has been aborted due to an unhandled application exception.",
_applicationException);
}
public void RejectRequest(RequestRejectionReason reason)
{
var ex = BadHttpRequestException.GetException(reason);
SetBadRequestState(ex);
throw ex;
RejectRequest(BadHttpRequestException.GetException(reason));
}
public void RejectRequest(RequestRejectionReason reason, string value)
{
var ex = BadHttpRequestException.GetException(reason, value);
SetBadRequestState(ex);
RejectRequest(BadHttpRequestException.GetException(reason, value));
}
private void RejectRequest(BadHttpRequestException ex)
{
Log.ConnectionBadRequest(ConnectionId, ex);
throw ex;
}
@ -1422,17 +1422,14 @@ namespace Microsoft.AspNetCore.Server.Kestrel.Internal.Http
public void SetBadRequestState(BadHttpRequestException ex)
{
// Setting status code will throw if response has already started
if (!HasResponseStarted)
{
SetErrorResponseHeaders(statusCode: ex.StatusCode);
SetErrorResponseHeaders(ex.StatusCode);
}
_keepAlive = false;
_requestProcessingStopping = true;
_requestRejected = true;
Log.ConnectionBadRequest(ConnectionId, ex);
_requestRejectedException = ex;
}
protected void ReportApplicationError(Exception ex)

19
src/Microsoft.AspNetCore.Server.Kestrel/Internal/Http/FrameOfT.cs
View File

@ -100,6 +100,11 @@ namespace Microsoft.AspNetCore.Server.Kestrel.Internal.Http
catch (Exception ex)
{
ReportApplicationError(ex);
if (ex is BadHttpRequestException)
{
throw;
}
}
finally
{
@ -118,6 +123,7 @@ namespace Microsoft.AspNetCore.Server.Kestrel.Internal.Http
{
await FireOnCompleted();
}
}
// If _requestAbort is set, the connection has already been closed.
if (Volatile.Read(ref _requestAborted) == 0)
@ -142,6 +148,12 @@ namespace Microsoft.AspNetCore.Server.Kestrel.Internal.Http
StatusCode = 0;
}
}
catch (BadHttpRequestException ex)
{
// Handle BadHttpRequestException thrown during app execution or remaining message body consumption.
// This has to be caught here so StatusCode is set properly before disposing the HttpContext
// (DisposeContext logs StatusCode).
SetBadRequestState(ex);
}
finally
{
@ -169,12 +181,10 @@ namespace Microsoft.AspNetCore.Server.Kestrel.Internal.Http
}
catch (BadHttpRequestException ex)
{
if (!_requestRejected)
{
// Handle BadHttpRequestException thrown during request line or header parsing.
// SetBadRequestState logs the error.
SetBadRequestState(ex);
}
}
catch (Exception ex)
{
Log.LogWarning(0, ex, "Connection processing ended abnormally");
@ -183,11 +193,10 @@ namespace Microsoft.AspNetCore.Server.Kestrel.Internal.Http
{
try
{
await TryProduceInvalidRequestResponse();
// If _requestAborted is set, the connection has already been closed.
if (Volatile.Read(ref _requestAborted) == 0)
{
await TryProduceInvalidRequestResponse();
ConnectionControl.End(ProduceEndType.SocketShutdown);
}
}

87
test/Microsoft.AspNetCore.Server.Kestrel.FunctionalTests/ResponseTests.cs
View File

@ -2,7 +2,6 @@
// Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
using System;
using System.IO;
using System.Linq;
using System.Net;
using System.Net.Http;
@ -239,6 +238,38 @@ namespace Microsoft.AspNetCore.Server.Kestrel.FunctionalTests
sendMalformedRequest: true);
}
[Fact]
public Task ResponseStatusCodeSetBeforeHttpContextDisposedRequestMalformedRead()
{
return ResponseStatusCodeSetBeforeHttpContextDispose(
async context =>
{
await context.Request.Body.ReadAsync(new byte[1], 0, 1);
},
expectedClientStatusCode: null,
expectedServerStatusCode: HttpStatusCode.BadRequest,
sendMalformedRequest: true);
}
[Fact]
public Task ResponseStatusCodeSetBeforeHttpContextDisposedRequestMalformedReadIgnored()
{
return ResponseStatusCodeSetBeforeHttpContextDispose(
async context =>
{
try
{
await context.Request.Body.ReadAsync(new byte[1], 0, 1);
}
catch (BadHttpRequestException)
{
}
},
expectedClientStatusCode: null,
expectedServerStatusCode: HttpStatusCode.BadRequest,
sendMalformedRequest: true);
}
private static async Task ResponseStatusCodeSetBeforeHttpContextDispose(
RequestDelegate handler,
HttpStatusCode? expectedClientStatusCode,
@ -730,14 +761,11 @@ namespace Microsoft.AspNetCore.Server.Kestrel.FunctionalTests
[Fact]
public async Task HeadResponseCanContainContentLengthHeader()
{
var testLogger = new TestApplicationErrorLogger();
var serviceContext = new TestServiceContext { Log = new TestKestrelTrace(testLogger) };
using (var server = new TestServer(httpContext =>
{
httpContext.Response.ContentLength = 42;
return TaskCache.CompletedTask;
}, serviceContext))
}, new TestServiceContext()))
{
using (var connection = server.CreateConnection())
{
@ -746,7 +774,7 @@ namespace Microsoft.AspNetCore.Server.Kestrel.FunctionalTests
"",
"");
await connection.ReceiveEnd(
$"HTTP/1.1 200 OK",
"HTTP/1.1 200 OK",
$"Date: {server.Context.DateHeaderValue}",
"Content-Length: 42",
"",
@ -758,14 +786,11 @@ namespace Microsoft.AspNetCore.Server.Kestrel.FunctionalTests
[Fact]
public async Task HeadResponseCanContainContentLengthHeaderButBodyNotWritten()
{
var testLogger = new TestApplicationErrorLogger();
var serviceContext = new TestServiceContext { Log = new TestKestrelTrace(testLogger) };
using (var server = new TestServer(async httpContext =>
{
httpContext.Response.ContentLength = 12;
await httpContext.Response.WriteAsync("hello, world");
}, serviceContext))
}, new TestServiceContext()))
{
using (var connection = server.CreateConnection())
{
@ -774,7 +799,7 @@ namespace Microsoft.AspNetCore.Server.Kestrel.FunctionalTests
"",
"");
await connection.ReceiveEnd(
$"HTTP/1.1 200 OK",
"HTTP/1.1 200 OK",
$"Date: {server.Context.DateHeaderValue}",
"Content-Length: 12",
"",
@ -783,6 +808,46 @@ namespace Microsoft.AspNetCore.Server.Kestrel.FunctionalTests
}
}
[Fact]
public async Task AppCanWriteOwnBadRequestResponse()
{
var expectedResponse = string.Empty;
var responseWrittenTcs = new TaskCompletionSource<object>();
using (var server = new TestServer(async httpContext =>
{
try
{
await httpContext.Request.Body.ReadAsync(new byte[1], 0, 1);
}
catch (BadHttpRequestException ex)
{
expectedResponse = ex.Message;
httpContext.Response.StatusCode = 400;
httpContext.Response.ContentLength = ex.Message.Length;
await httpContext.Response.WriteAsync(ex.Message);
responseWrittenTcs.SetResult(null);
}
}, new TestServiceContext()))
{
using (var connection = server.CreateConnection())
{
await connection.SendEnd(
"POST / HTTP/1.1",
"Transfer-Encoding: chunked",
"",
"bad");
await responseWrittenTcs.Task;
await connection.ReceiveEnd(
"HTTP/1.1 400 Bad Request",
$"Date: {server.Context.DateHeaderValue}",
$"Content-Length: {expectedResponse.Length}",
"",
expectedResponse);
}
}
}
public static TheoryData<string, StringValues, string> NullHeaderData
{
get