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
174
175
176
177
178
179
180
181
182
183
184
185
186
187
|
/****************************************************************************
**
** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the QtNetwork module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** No Commercial Usage
** This file contains pre-release code and may not be distributed.
** You may use this file in accordance with the terms and conditions
** contained in the Technology Preview License Agreement accompanying
** this package.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain additional
** rights. These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
**
**
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QHTTPNETWORKCONNECTIONCHANNEL_H
#define QHTTPNETWORKCONNECTIONCHANNEL_H
//
// W A R N I N G
// -------------
//
// This file is not part of the Qt API. It exists for the convenience
// of the Network Access API. This header file may change from
// version to version without notice, or even be removed.
//
// We mean it.
//
#include <QtNetwork/qnetworkrequest.h>
#include <QtNetwork/qnetworkreply.h>
#include <QtNetwork/qabstractsocket.h>
#include <private/qobject_p.h>
#include <qauthenticator.h>
#include <qnetworkproxy.h>
#include <qbuffer.h>
#include <private/qhttpnetworkheader_p.h>
#include <private/qhttpnetworkrequest_p.h>
#include <private/qhttpnetworkreply_p.h>
#include <private/qhttpnetworkconnection_p.h>
#ifndef QT_NO_HTTP
#ifndef QT_NO_OPENSSL
# include <QtNetwork/qsslsocket.h>
# include <QtNetwork/qsslerror.h>
#else
# include <QtNetwork/qtcpsocket.h>
#endif
QT_BEGIN_NAMESPACE
class QHttpNetworkRequest;
class QHttpNetworkReply;
class QByteArray;
#ifndef HttpMessagePair
typedef QPair<QHttpNetworkRequest, QHttpNetworkReply*> HttpMessagePair;
#endif
class QHttpNetworkConnectionChannel : public QObject {
Q_OBJECT
public:
enum ChannelState {
IdleState = 0, // ready to send request
ConnectingState = 1, // connecting to host
WritingState = 2, // writing the data
WaitingState = 4, // waiting for reply
ReadingState = 8, // reading the reply
ClosingState = 16,
BusyState = (ConnectingState|WritingState|WaitingState|ReadingState|ClosingState)
};
QAbstractSocket *socket;
bool ssl;
ChannelState state;
QHttpNetworkRequest request; // current request
QHttpNetworkReply *reply; // current reply for this request
qint64 written;
qint64 bytesTotal;
bool resendCurrent;
int lastStatus; // last status received on this channel
bool pendingEncrypt; // for https (send after encrypted)
int reconnectAttempts; // maximum 2 reconnection attempts
QAuthenticatorPrivate::Method authMethod;
QAuthenticatorPrivate::Method proxyAuthMethod;
QAuthenticator authenticator;
QAuthenticator proxyAuthenticator;
#ifndef QT_NO_OPENSSL
bool ignoreAllSslErrors;
QList<QSslError> ignoreSslErrorsList;
#endif
// HTTP pipelining -> http://en.wikipedia.org/wiki/Http_pipelining
enum PipeliningSupport {
PipeliningSupportUnknown, // default for a new connection
PipeliningProbablySupported, // after having received a server response that indicates support
PipeliningNotSupported // currently not used
};
PipeliningSupport pipeliningSupported;
QList<HttpMessagePair> alreadyPipelinedRequests;
QByteArray pipeline; // temporary buffer that gets sent to socket in pipelineFlush
void pipelineInto(HttpMessagePair &pair);
void pipelineFlush();
void requeueCurrentlyPipelinedRequests();
void detectPipeliningSupport();
QHttpNetworkConnectionChannel();
void setConnection(QHttpNetworkConnection *c);
QPointer<QHttpNetworkConnection> connection;
void init();
void close();
bool sendRequest();
bool ensureConnection();
bool expand(bool dataComplete);
void allDone(); // reply header + body have been read
void handleStatus(); // called from allDone()
bool resetUploadData(); // return true if resetting worked or there is no upload data
void handleUnexpectedEOF();
void closeAndResendCurrentRequest();
bool isSocketBusy() const;
bool isSocketWriting() const;
bool isSocketWaiting() const;
bool isSocketReading() const;
friend class QNetworkAccessHttpBackend;
protected slots:
void _q_receiveReply();
void _q_bytesWritten(qint64 bytes); // proceed sending
void _q_readyRead(); // pending data to read
void _q_disconnected(); // disconnected from host
void _q_connected(); // start sending request
void _q_error(QAbstractSocket::SocketError); // error from socket
#ifndef QT_NO_NETWORKPROXY
void _q_proxyAuthenticationRequired(const QNetworkProxy &proxy, QAuthenticator *auth); // from transparent proxy
#endif
void _q_uploadDataReadyRead();
#ifndef QT_NO_OPENSSL
void _q_encrypted(); // start sending request (https)
void _q_sslErrors(const QList<QSslError> &errors); // ssl errors from the socket
void _q_encryptedBytesWritten(qint64 bytes); // proceed sending
#endif
};
QT_END_NAMESPACE
#endif // QT_NO_HTTP
#endif
|
