blob: 7a293a0482ece45b49963a1197d95b8a5ba83ec1 [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 <string>
#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/host_port_pair.h"
#include "net/base/load_timing_info.h"
#include "net/base/net_log.h"
#include "net/http/http_auth_controller.h"
#include "net/http/http_request_headers.h"
#include "net/http/http_request_info.h"
#include "net/http/http_response_info.h"
#include "net/http/proxy_client_socket.h"
#include "net/spdy/spdy_http_stream.h"
#include "net/spdy/spdy_protocol.h"
#include "net/spdy/spdy_read_queue.h"
#include "net/spdy/spdy_session.h"
#include "net/spdy/spdy_stream.h"
class GURL;
namespace net {
class AddressList;
class HttpStream;
class IOBuffer;
class SpdyStream;
class NET_EXPORT_PRIVATE SpdyProxyClientSocket : public ProxyClientSocket,
public SpdyStream::Delegate {
// Create a socket on top of the |spdy_stream| by sending a SYN_STREAM
// CONNECT frame for |endpoint|. After the SYN_REPLY is received,
// any data read/written to the socket will be transferred in data
// frames. This object will set itself as |spdy_stream|'s delegate.
SpdyProxyClientSocket(const base::WeakPtr<SpdyStream>& spdy_stream,
const std::string& user_agent,
const HostPortPair& endpoint,
const GURL& url,
const HostPortPair& proxy_server,
const BoundNetLog& source_net_log,
HttpAuthCache* auth_cache,
HttpAuthHandlerFactory* auth_handler_factory);
// On destruction Disconnect() is called.
virtual ~SpdyProxyClientSocket();
// ProxyClientSocket methods:
virtual const HttpResponseInfo* GetConnectResponseInfo() const OVERRIDE;
virtual HttpStream* CreateConnectResponseStream() OVERRIDE;
virtual const scoped_refptr<HttpAuthController>& GetAuthController() const
virtual int RestartWithAuth(const CompletionCallback& callback) OVERRIDE;
virtual bool IsUsingSpdy() const OVERRIDE;
virtual NextProto GetProtocolNegotiated() const OVERRIDE;
// StreamSocket implementation.
virtual int Connect(const CompletionCallback& callback) OVERRIDE;
virtual void Disconnect() OVERRIDE;
virtual bool IsConnected() const OVERRIDE;
virtual bool IsConnectedAndIdle() const OVERRIDE;
virtual const BoundNetLog& NetLog() const OVERRIDE;
virtual void SetSubresourceSpeculation() OVERRIDE;
virtual void SetOmniboxSpeculation() OVERRIDE;
virtual bool WasEverUsed() const OVERRIDE;
virtual bool UsingTCPFastOpen() const OVERRIDE;
virtual bool WasNpnNegotiated() const OVERRIDE;
virtual NextProto GetNegotiatedProtocol() const OVERRIDE;
virtual bool GetSSLInfo(SSLInfo* ssl_info) OVERRIDE;
// Socket implementation.
virtual int Read(IOBuffer* buf,
int buf_len,
const CompletionCallback& callback) OVERRIDE;
virtual int Write(IOBuffer* buf,
int buf_len,
const CompletionCallback& callback) OVERRIDE;
virtual int SetReceiveBufferSize(int32 size) OVERRIDE;
virtual int SetSendBufferSize(int32 size) OVERRIDE;
virtual int GetPeerAddress(IPEndPoint* address) const OVERRIDE;
virtual int GetLocalAddress(IPEndPoint* address) const 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;
enum State {
void LogBlockedTunnelResponse() const;
// Calls |callback.Run(result)|. Used to run a callback posted to the
// message loop.
void RunCallback(const CompletionCallback& callback, int result) const;
void OnIOComplete(int result);
int DoLoop(int last_io_result);
int DoGenerateAuthToken();
int DoGenerateAuthTokenComplete(int result);
int DoSendRequest();
int DoSendRequestComplete(int result);
int DoReadReplyComplete(int result);
// Populates |user_buffer_| with as much read data as possible
// and returns the number of bytes read.
size_t PopulateUserReadBuffer(char* out, size_t len);
State next_state_;
// Pointer to the SPDY Stream that this sits on top of.
base::WeakPtr<SpdyStream> spdy_stream_;
// Stores the callback to the layer above, called on completing Read() or
// Connect().
CompletionCallback read_callback_;
// Stores the callback to the layer above, called on completing Write().
CompletionCallback write_callback_;
// CONNECT request and response.
HttpRequestInfo request_;
HttpResponseInfo response_;
// The hostname and port of the endpoint. This is not necessarily the one
// specified by the URL, due to Alternate-Protocol or fixed testing ports.
const HostPortPair endpoint_;
scoped_refptr<HttpAuthController> auth_;
// We buffer the response body as it arrives asynchronously from the stream.
SpdyReadQueue read_buffer_queue_;
// User provided buffer for the Read() response.
scoped_refptr<IOBuffer> user_buffer_;
size_t user_buffer_len_;
// User specified number of bytes to be written.
int write_buffer_len_;
// True if the transport socket has ever sent data.
bool was_ever_used_;
// Used only for redirects.
bool redirect_has_load_timing_info_;
LoadTimingInfo redirect_load_timing_info_;
const BoundNetLog net_log_;
// The default weak pointer factory.
base::WeakPtrFactory<SpdyProxyClientSocket> weak_factory_;
// Only used for posting write callbacks. Weak pointers created by this
// factory are invalidated in Disconnect().
base::WeakPtrFactory<SpdyProxyClientSocket> write_callback_weak_factory_;
} // namespace net