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
|
/****************************************************************************
**
** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the QtWebSockets module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Digia. For licensing terms and
** conditions see http://qt.digia.com/licensing. For further information
** use the contact form at http://qt.digia.com/contact-us.
**
** 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, Digia gives you certain additional
** rights. These rights are described in the Digia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3.0 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU General Public License version 3.0 requirements will be
** met: http://www.gnu.org/copyleft/gpl.html.
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "qwebsocketprotocol_p.h"
#include <QtCore/QString>
#include <QtCore/QSet>
#include <QtCore/QtEndian>
/*!
\enum QWebSocketProtocol::CloseCode
\inmodule QtWebSockets
The close codes supported by WebSockets V13
\value CC_NORMAL Normal closure
\value CC_GOING_AWAY Going away
\value CC_PROTOCOL_ERROR Protocol error
\value CC_DATATYPE_NOT_SUPPORTED Unsupported data
\value CC_RESERVED_1004 Reserved
\value CC_MISSING_STATUS_CODE No status received
\value CC_ABNORMAL_DISCONNECTION Abnormal closure
\value CC_WRONG_DATATYPE Invalid frame payload data
\value CC_POLICY_VIOLATED Policy violation
\value CC_TOO_MUCH_DATA Message too big
\value CC_MISSING_EXTENSION Mandatory extension missing
\value CC_BAD_OPERATION Internal server error
\value CC_TLS_HANDSHAKE_FAILED TLS handshake failed
\sa \l{QWebSocket::} {close()}
*/
/*!
\enum QWebSocketProtocol::Version
\inmodule QtWebSockets
\brief The different defined versions of the Websocket protocol.
For an overview of the differences between the different protocols, see
<http://code.google.com/p/pywebsocket/wiki/WebSocketProtocolSpec>
\value V_Unknow
\value V_0 hixie76: http://tools.ietf.org/html/draft-hixie-thewebsocketprotocol-76 & hybi-00: http://tools.ietf.org/html/draft-ietf-hybi-thewebsocketprotocol-00.
Works with key1, key2 and a key in the payload.
Attribute: Sec-WebSocket-Draft value 0.
\value V_4 hybi-04: http://tools.ietf.org/id/draft-ietf-hybi-thewebsocketprotocol-04.txt.
Changed handshake: key1, key2, key3 ==> Sec-WebSocket-Key, Sec-WebSocket-Nonce, Sec-WebSocket-Accept
Sec-WebSocket-Draft renamed to Sec-WebSocket-Version
Sec-WebSocket-Version = 4
\value V_5 hybi-05: http://tools.ietf.org/id/draft-ietf-hybi-thewebsocketprotocol-05.txt.
Sec-WebSocket-Version = 5
Removed Sec-WebSocket-Nonce
Added Sec-WebSocket-Accept
\value V_6 Sec-WebSocket-Version = 6.
\value V_7 hybi-07: http://tools.ietf.org/html/draft-ietf-hybi-thewebsocketprotocol-07.
Sec-WebSocket-Version = 7
\value V_8 hybi-8, hybi-9, hybi-10, hybi-11 and hybi-12.
Status codes 1005 and 1006 are added and all codes are now unsigned
Internal error results in 1006
\value V_13 hybi-13, hybi14, hybi-15, hybi-16, hybi-17 and RFC 6455.
Sec-WebSocket-Version = 13
Status code 1004 is now reserved
Added 1008, 1009 and 1010
Must support TLS
Clarify multiple version support
\value V_LATEST Refers to the latest know version to QWebSockets.
*/
/*!
\fn QWebSocketProtocol::isOpCodeReserved(OpCode code)
Checks if \a code is a valid OpCode
\internal
*/
/*!
\fn QWebSocketProtocol::isCloseCodeValid(int closeCode)
Checks if \a closeCode is a valid web socket close code
\internal
*/
/*!
\fn QWebSocketProtocol::currentVersion()
Returns the latest version that WebSocket is supporting
\internal
*/
QT_BEGIN_NAMESPACE
/**
* @brief Contains constants related to the WebSocket standard.
*/
namespace QWebSocketProtocol
{
/*!
Parses the \a versionString and converts it to a Version value
\internal
*/
Version versionFromString(const QString &versionString)
{
bool ok = false;
Version version = V_Unknow;
const int ver = versionString.toInt(&ok);
QSet<Version> supportedVersions;
supportedVersions << V_0 << V_4 << V_5 << V_6 << V_7 << V_8 << V_13;
if (Q_LIKELY(ok) && (supportedVersions.contains(static_cast<Version>(ver))))
version = static_cast<Version>(ver);
return version;
}
/*!
Mask the \a payload with the given \a maskingKey and stores the result back in \a payload.
\internal
*/
void mask(QByteArray *payload, quint32 maskingKey)
{
Q_ASSERT(payload);
mask(payload->data(), payload->size(), maskingKey);
}
/*!
Masks the \a payload of length \a size with the given \a maskingKey and stores the result back in \a payload.
\internal
*/
void mask(char *payload, quint64 size, quint32 maskingKey)
{
Q_ASSERT(payload);
const quint8 mask[] = { quint8((maskingKey & 0xFF000000u) >> 24),
quint8((maskingKey & 0x00FF0000u) >> 16),
quint8((maskingKey & 0x0000FF00u) >> 8),
quint8((maskingKey & 0x000000FFu))
};
int i = 0;
while (size-- > 0)
*payload++ ^= mask[i++ % 4];
}
} //end namespace WebSocketProtocol
QT_END_NAMESPACE
|
