blob: f6e39cd102e92120d15d0f5b215eacbd8d85f42c [file] [log] [blame]
// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include <list>
#include "base/basictypes.h"
#include "base/memory/ref_counted.h"
#include "base/memory/weak_ptr.h"
#include "net/base/completion_callback.h"
#include "net/base/net_log.h"
#include "net/http/http_stream.h"
#include "net/spdy/spdy_read_queue.h"
#include "net/spdy/spdy_session.h"
#include "net/spdy/spdy_stream.h"
namespace net {
class DrainableIOBuffer;
struct HttpRequestInfo;
class HttpResponseInfo;
class IOBuffer;
class SpdySession;
class UploadDataStream;
// The SpdyHttpStream is a HTTP-specific type of stream known to a SpdySession.
class NET_EXPORT_PRIVATE SpdyHttpStream : public SpdyStream::Delegate,
public HttpStream {
// |spdy_session| must not be NULL.
SpdyHttpStream(const base::WeakPtr<SpdySession>& spdy_session, bool direct);
virtual ~SpdyHttpStream();
SpdyStream* stream() { return stream_.get(); }
// Cancels any callbacks from being invoked and deletes the stream.
void Cancel();
// HttpStream implementation.
virtual int InitializeStream(const HttpRequestInfo* request_info,
RequestPriority priority,
const BoundNetLog& net_log,
const CompletionCallback& callback) OVERRIDE;
virtual int SendRequest(const HttpRequestHeaders& headers,
HttpResponseInfo* response,
const CompletionCallback& callback) OVERRIDE;
virtual UploadProgress GetUploadProgress() const OVERRIDE;
virtual int ReadResponseHeaders(const CompletionCallback& callback) OVERRIDE;
virtual const HttpResponseInfo* GetResponseInfo() const OVERRIDE;
virtual int ReadResponseBody(IOBuffer* buf,
int buf_len,
const CompletionCallback& callback) OVERRIDE;
virtual void Close(bool not_reusable) OVERRIDE;
virtual HttpStream* RenewStreamForAuth() OVERRIDE;
virtual bool IsResponseBodyComplete() const OVERRIDE;
virtual bool CanFindEndOfResponse() const OVERRIDE;
// Must not be called if a NULL SpdySession was pssed into the
// constructor.
virtual bool IsConnectionReused() const OVERRIDE;
virtual void SetConnectionReused() OVERRIDE;
virtual bool IsConnectionReusable() const OVERRIDE;
virtual bool GetLoadTimingInfo(
LoadTimingInfo* load_timing_info) const OVERRIDE;
virtual void GetSSLInfo(SSLInfo* ssl_info) OVERRIDE;
virtual void GetSSLCertRequestInfo(
SSLCertRequestInfo* cert_request_info) OVERRIDE;
virtual bool IsSpdyHttpStream() const OVERRIDE;
virtual void Drain(HttpNetworkSession* session) OVERRIDE;
virtual void SetPriority(RequestPriority priority) OVERRIDE;
// SpdyStream::Delegate implementation.
virtual void OnRequestHeadersSent() OVERRIDE;
virtual SpdyResponseHeadersStatus OnResponseHeadersUpdated(
const SpdyHeaderBlock& response_headers) OVERRIDE;
virtual void OnDataReceived(scoped_ptr<SpdyBuffer> buffer) OVERRIDE;
virtual void OnDataSent() OVERRIDE;
virtual void OnClose(int status) OVERRIDE;
// Must be called only when |request_info_| is non-NULL.
bool HasUploadData() const;
void OnStreamCreated(const CompletionCallback& callback, int rv);
// Reads the remaining data (whether chunked or not) from the
// request body stream and sends it if there's any. The read and
// subsequent sending may happen asynchronously. Must be called only
// when HasUploadData() is true.
void ReadAndSendRequestBodyData();
// Called when data has just been read from the request body stream;
// does the actual sending of data.
void OnRequestBodyReadCompleted(int status);
// Call the user callback.
void DoCallback(int rv);
void ScheduleBufferedReadCallback();
// Returns true if the callback is invoked.
bool DoBufferedReadCallback();
bool ShouldWaitForMoreBufferedData() const;
base::WeakPtrFactory<SpdyHttpStream> weak_factory_;
const base::WeakPtr<SpdySession> spdy_session_;
bool is_reused_;
SpdyStreamRequest stream_request_;
base::WeakPtr<SpdyStream> stream_;
bool stream_closed_;
// Set only when |stream_closed_| is true.
int closed_stream_status_;
SpdyStreamId closed_stream_id_;
bool closed_stream_has_load_timing_info_;
LoadTimingInfo closed_stream_load_timing_info_;
// The request to send.
const HttpRequestInfo* request_info_;
// |response_info_| is the HTTP response data object which is filled in
// when a SYN_REPLY comes in for the stream.
// It is not owned by this stream object, or point to |push_response_info_|.
HttpResponseInfo* response_info_;
scoped_ptr<HttpResponseInfo> push_response_info_;
// We don't use SpdyStream's |response_header_status_| as we
// sometimes call back into our delegate before it is updated.
SpdyResponseHeadersStatus response_headers_status_;
// We buffer the response body as it arrives asynchronously from the stream.
SpdyReadQueue response_body_queue_;
CompletionCallback callback_;
// User provided buffer for the ReadResponseBody() response.
scoped_refptr<IOBuffer> user_buffer_;
int user_buffer_len_;
// Temporary buffer used to read the request body from UploadDataStream.
scoped_refptr<IOBufferWithSize> request_body_buf_;
int request_body_buf_size_;
// Is there a scheduled read callback pending.
bool buffered_read_callback_pending_;
// Has more data been received from the network during the wait for the
// scheduled read callback.
bool more_read_data_pending_;
// Is this spdy stream direct to the origin server (or to a proxy).
bool direct_;
} // namespace net