2 QWebSockets implements the WebSocket protocol as defined in RFC 6455.
3 Copyright (C) 2013 Kurt Pattyn (pattyn.kurt@gmail.com)
5 This library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
10 This library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
15 You should have received a copy of the GNU Lesser General Public
16 License along with this library; if not, write to the Free Software
17 Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20 #include "qwebsocketprotocol.h"
26 \enum QWebSocketProtocol::CloseCode
28 \inmodule QtWebSockets
30 The close codes supported by WebSockets V13
32 \value CC_NORMAL Normal closure
33 \value CC_GOING_AWAY Going away
34 \value CC_PROTOCOL_ERROR Protocol error
35 \value CC_DATATYPE_NOT_SUPPORTED Unsupported data
36 \value CC_RESERVED_1004 Reserved
37 \value CC_MISSING_STATUS_CODE No status received
38 \value CC_ABNORMAL_DISCONNECTION Abnormal closure
39 \value CC_WRONG_DATATYPE Invalid frame payload data
40 \value CC_POLICY_VIOLATED Policy violation
41 \value CC_TOO_MUCH_DATA Message too big
42 \value CC_MISSING_EXTENSION Mandatory extension missing
43 \value CC_BAD_OPERATION Internal server error
44 \value CC_TLS_HANDSHAKE_FAILED TLS handshake failed
46 \sa \l{QWebSocket::} {close()}
49 \enum QWebSocketProtocol::Version
51 \inmodule QtWebSockets
53 \brief The different defined versions of the Websocket protocol.
55 For an overview of the differences between the different protocols, see
56 <http://code.google.com/p/pywebsocket/wiki/WebSocketProtocolSpec>
59 \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.
60 Works with key1, key2 and a key in the payload.
61 Attribute: Sec-WebSocket-Draft value 0.
62 \value V_4 hybi-04: http://tools.ietf.org/id/draft-ietf-hybi-thewebsocketprotocol-04.txt.
63 Changed handshake: key1, key2, key3 ==> Sec-WebSocket-Key, Sec-WebSocket-Nonce, Sec-WebSocket-Accept
64 Sec-WebSocket-Draft renamed to Sec-WebSocket-Version
65 Sec-WebSocket-Version = 4
66 \value V_5 hybi-05: http://tools.ietf.org/id/draft-ietf-hybi-thewebsocketprotocol-05.txt.
67 Sec-WebSocket-Version = 5
68 Removed Sec-WebSocket-Nonce
69 Added Sec-WebSocket-Accept
70 \value V_6 Sec-WebSocket-Version = 6.
71 \value V_7 hybi-07: http://tools.ietf.org/html/draft-ietf-hybi-thewebsocketprotocol-07.
72 Sec-WebSocket-Version = 7
73 \value V_8 hybi-8, hybi-9, hybi-10, hybi-11 and hybi-12.
74 Status codes 1005 and 1006 are added and all codes are now unsigned
75 Internal error results in 1006
76 \value V_13 hybi-13, hybi14, hybi-15, hybi-16, hybi-17 and RFC 6455.
77 Sec-WebSocket-Version = 13
78 Status code 1004 is now reserved
79 Added 1008, 1009 and 1010
81 Clarify multiple version support
82 \value V_LATEST Refers to the latest know version to QWebSockets.
86 \fn QWebSocketProtocol::isOpCodeReserved(OpCode code)
87 Checks if \a code is a valid OpCode
92 \fn QWebSocketProtocol::isCloseCodeValid(int closeCode)
93 Checks if \a closeCode is a valid web socket close code
98 \fn QWebSocketProtocol::currentVersion()
99 Returns the latest version that WebSocket is supporting
106 * @brief Contains constants related to the WebSocket standard.
108 namespace QWebSocketProtocol
111 Parses the \a versionString and converts it to a Version value
114 Version versionFromString(const QString &versionString)
117 Version version = V_Unknow;
118 const int ver = versionString.toInt(&ok);
119 QSet<Version> supportedVersions;
120 supportedVersions << V_0 << V_4 << V_5 << V_6 << V_7 << V_8 << V_13;
123 if (supportedVersions.contains(static_cast<Version>(ver)))
125 version = static_cast<Version>(ver);
132 Mask the \a payload with the given \a maskingKey and stores the result back in \a payload.
135 void mask(QByteArray *payload, quint32 maskingKey)
137 quint32 *payloadData = reinterpret_cast<quint32 *>(payload->data());
138 const quint32 numIterations = static_cast<quint32>(payload->size()) / sizeof(quint32);
139 const quint32 remainder = static_cast<quint32>(payload->size()) % sizeof(quint32);
141 for (i = 0; i < numIterations; ++i)
143 *(payloadData + i) ^= maskingKey;
147 const quint32 offset = i * static_cast<quint32>(sizeof(quint32));
148 char *payloadBytes = payload->data();
149 const uchar *mask = reinterpret_cast<uchar *>(&maskingKey);
150 for (quint32 i = 0; i < remainder; ++i)
152 *(payloadBytes + offset + i) ^= static_cast<char>(mask[(i + offset) % 4]);
158 Masks the \a payload of length \a size with the given \a maskingKey and stores the result back in \a payload.
161 void mask(char *payload, quint64 size, quint32 maskingKey)
163 quint32 *payloadData = reinterpret_cast<quint32 *>(payload);
164 const quint32 numIterations = static_cast<quint32>(size / sizeof(quint32));
165 const quint32 remainder = size % sizeof(quint32);
167 for (i = 0; i < numIterations; ++i)
169 *(payloadData + i) ^= maskingKey;
173 const quint32 offset = i * static_cast<quint32>(sizeof(quint32));
174 const uchar *mask = reinterpret_cast<uchar *>(&maskingKey);
175 for (quint32 i = 0; i < remainder; ++i)
177 *(payload + offset + i) ^= static_cast<char>(mask[(i + offset) % 4]);
181 } //end namespace WebSocketProtocol