1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
|
// 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.
#ifndef NET_HTTP_HTTP_PROXY_CLIENT_SOCKET_H_
#define NET_HTTP_HTTP_PROXY_CLIENT_SOCKET_H_
#include <string>
#include "base/basictypes.h"
#include "base/memory/ref_counted.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/socket/ssl_client_socket.h"
class GURL;
namespace net {
class AddressList;
class ClientSocketHandle;
class GrowableIOBuffer;
class HttpAuthCache;
class HttpStream;
class HttpStreamParser;
class IOBuffer;
class HttpProxyClientSocket : public ProxyClientSocket {
public:
// Takes ownership of |transport_socket|, which should already be connected
// by the time Connect() is called. If tunnel is true then on Connect()
// this socket will establish an Http tunnel.
HttpProxyClientSocket(ClientSocketHandle* transport_socket,
const GURL& request_url,
const std::string& user_agent,
const HostPortPair& endpoint,
const HostPortPair& proxy_server,
HttpAuthCache* http_auth_cache,
HttpAuthHandlerFactory* http_auth_handler_factory,
bool tunnel,
bool using_spdy,
NextProto protocol_negotiated,
bool is_https_proxy);
// On destruction Disconnect() is called.
virtual ~HttpProxyClientSocket();
// ProxyClientSocket implementation.
virtual const HttpResponseInfo* GetConnectResponseInfo() const OVERRIDE;
virtual HttpStream* CreateConnectResponseStream() OVERRIDE;
virtual int RestartWithAuth(const CompletionCallback& callback) OVERRIDE;
virtual const scoped_refptr<HttpAuthController>& GetAuthController() const
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;
private:
enum State {
STATE_NONE,
STATE_GENERATE_AUTH_TOKEN,
STATE_GENERATE_AUTH_TOKEN_COMPLETE,
STATE_SEND_REQUEST,
STATE_SEND_REQUEST_COMPLETE,
STATE_READ_HEADERS,
STATE_READ_HEADERS_COMPLETE,
STATE_DRAIN_BODY,
STATE_DRAIN_BODY_COMPLETE,
STATE_TCP_RESTART,
STATE_TCP_RESTART_COMPLETE,
STATE_DONE,
};
// The size in bytes of the buffer we use to drain the response body that
// we want to throw away. The response body is typically a small error
// page just a few hundred bytes long.
static const int kDrainBodyBufferSize = 1024;
int PrepareForAuthRestart();
int DidDrainBodyForAuthRestart(bool keep_alive);
void LogBlockedTunnelResponse() const;
void DoCallback(int result);
void OnIOComplete(int result);
int DoLoop(int last_io_result);
int DoGenerateAuthToken();
int DoGenerateAuthTokenComplete(int result);
int DoSendRequest();
int DoSendRequestComplete(int result);
int DoReadHeaders();
int DoReadHeadersComplete(int result);
int DoDrainBody();
int DoDrainBodyComplete(int result);
int DoTCPRestart();
int DoTCPRestartComplete(int result);
CompletionCallback io_callback_;
State next_state_;
// Stores the callback to the layer above, called on completing Connect().
CompletionCallback user_callback_;
HttpRequestInfo request_;
HttpResponseInfo response_;
scoped_refptr<GrowableIOBuffer> parser_buf_;
scoped_ptr<HttpStreamParser> http_stream_parser_;
scoped_refptr<IOBuffer> drain_buf_;
// Stores the underlying socket.
scoped_ptr<ClientSocketHandle> transport_;
// 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_;
const bool tunnel_;
// If true, then the connection to the proxy is a SPDY connection.
const bool using_spdy_;
// Protocol negotiated with the server.
NextProto protocol_negotiated_;
// If true, then SSL is used to communicate with this proxy
const bool is_https_proxy_;
std::string request_line_;
HttpRequestHeaders request_headers_;
// Used only for redirects.
bool redirect_has_load_timing_info_;
LoadTimingInfo redirect_load_timing_info_;
const BoundNetLog net_log_;
DISALLOW_COPY_AND_ASSIGN(HttpProxyClientSocket);
};
} // namespace net
#endif // NET_HTTP_HTTP_PROXY_CLIENT_SOCKET_H_
|
