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
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
|
/*
QWebSockets implements the WebSocket protocol as defined in RFC 6455.
Copyright (C) 2013 Kurt Pattyn (pattyn.kurt@gmail.com)
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "qwebsockethandshakerequest_p.h"
#include <QString>
#include <QMap>
#include <QTextStream>
#include <QUrl>
#include <QList>
#include <QStringList>
#include "qwebsocketprotocol.h"
QT_BEGIN_NAMESPACE
/*!
\internal
*/
QWebSocketHandshakeRequest::QWebSocketHandshakeRequest(int port, bool isSecure) :
m_port(port),
m_isSecure(isSecure),
m_isValid(false),
m_headers(),
m_versions(),
m_key(),
m_origin(),
m_protocols(),
m_extensions(),
m_requestUrl()
{
}
/*!
\internal
*/
QWebSocketHandshakeRequest::~QWebSocketHandshakeRequest()
{
}
/*!
\internal
*/
void QWebSocketHandshakeRequest::clear()
{
m_port = -1;
m_isSecure = false;
m_isValid = false;
m_headers.clear();
m_versions.clear();
m_key.clear();
m_origin.clear();
m_protocols.clear();
m_extensions.clear();
m_requestUrl.clear();
}
/*!
\internal
*/
int QWebSocketHandshakeRequest::getPort() const
{
return m_requestUrl.port(m_port);
}
/*!
\internal
*/
bool QWebSocketHandshakeRequest::isSecure() const
{
return m_isSecure;
}
/*!
\internal
*/
bool QWebSocketHandshakeRequest::isValid() const
{
return m_isValid;
}
/*!
\internal
*/
QMap<QString, QString> QWebSocketHandshakeRequest::getHeaders() const
{
return m_headers;
}
/*!
\internal
*/
QList<QWebSocketProtocol::Version> QWebSocketHandshakeRequest::getVersions() const
{
return m_versions;
}
/*!
\internal
*/
QString QWebSocketHandshakeRequest::getResourceName() const
{
return m_requestUrl.path();
}
/*!
\internal
*/
QString QWebSocketHandshakeRequest::getKey() const
{
return m_key;
}
/*!
\internal
*/
QString QWebSocketHandshakeRequest::getHost() const
{
return m_requestUrl.host();
}
/*!
\internal
*/
QString QWebSocketHandshakeRequest::getOrigin() const
{
return m_origin;
}
/*!
\internal
*/
QList<QString> QWebSocketHandshakeRequest::getProtocols() const
{
return m_protocols;
}
/*!
\internal
*/
QList<QString> QWebSocketHandshakeRequest::getExtensions() const
{
return m_extensions;
}
/*!
\internal
*/
QUrl QWebSocketHandshakeRequest::getRequestUrl() const
{
return m_requestUrl;
}
/*!
\internal
*/
QTextStream &QWebSocketHandshakeRequest::readFromStream(QTextStream &textStream)
{
m_isValid = false;
clear();
if (textStream.status() == QTextStream::Ok)
{
const QString requestLine = textStream.readLine();
const QStringList tokens = requestLine.split(' ', QString::SkipEmptyParts);
const QString verb = tokens[0];
const QString resourceName = tokens[1];
const QString httpProtocol = tokens[2];
bool conversionOk = false;
const float httpVersion = httpProtocol.midRef(5).toFloat(&conversionOk);
QString headerLine = textStream.readLine();
m_headers.clear();
while (!headerLine.isEmpty())
{
const QStringList headerField = headerLine.split(QStringLiteral(": "), QString::SkipEmptyParts);
m_headers.insertMulti(headerField[0], headerField[1]);
headerLine = textStream.readLine();
}
const QString host = m_headers.value(QStringLiteral("Host"), QStringLiteral(""));
m_requestUrl = QUrl::fromEncoded(resourceName.toLatin1());
if (m_requestUrl.isRelative())
{
m_requestUrl.setHost(host);
}
if (m_requestUrl.scheme().isEmpty())
{
const QString scheme = isSecure() ? QStringLiteral("wss://") : QStringLiteral("ws://");
m_requestUrl.setScheme(scheme);
}
const QStringList versionLines = m_headers.values(QStringLiteral("Sec-WebSocket-Version"));
for (QStringList::const_iterator v = versionLines.begin(); v != versionLines.end(); ++v)
{
const QStringList versions = (*v).split(QStringLiteral(","), QString::SkipEmptyParts);
for (QStringList::const_iterator i = versions.begin(); i != versions.end(); ++i)
{
const QWebSocketProtocol::Version ver = QWebSocketProtocol::versionFromString((*i).trimmed());
m_versions << ver;
}
}
qStableSort(m_versions.begin(), m_versions.end(), qGreater<QWebSocketProtocol::Version>()); //sort in descending order
m_key = m_headers.value(QStringLiteral("Sec-WebSocket-Key"), QStringLiteral(""));
const QString upgrade = m_headers.value(QStringLiteral("Upgrade"), QStringLiteral("")); //must be equal to "websocket", case-insensitive
const QString connection = m_headers.value(QStringLiteral("Connection"), QStringLiteral("")); //must contain "Upgrade", case-insensitive
const QStringList connectionLine = connection.split(QStringLiteral(","), QString::SkipEmptyParts);
QStringList connectionValues;
for (QStringList::const_iterator c = connectionLine.begin(); c != connectionLine.end(); ++c)
{
connectionValues << (*c).trimmed();
}
//optional headers
m_origin = m_headers.value(QStringLiteral("Sec-WebSocket-Origin"), QStringLiteral(""));
const QStringList protocolLines = m_headers.values(QStringLiteral("Sec-WebSocket-Protocol"));
for (QStringList::const_iterator pl = protocolLines.begin(); pl != protocolLines.end(); ++pl)
{
QStringList protocols = (*pl).split(QStringLiteral(","), QString::SkipEmptyParts);
for (QStringList::const_iterator p = protocols.begin(); p != protocols.end(); ++p)
{
m_protocols << (*p).trimmed();
}
}
const QStringList extensionLines = m_headers.values(QStringLiteral("Sec-WebSocket-Extensions"));
for (QStringList::const_iterator el = extensionLines.begin(); el != extensionLines.end(); ++el)
{
QStringList extensions = (*el).split(QStringLiteral(","), QString::SkipEmptyParts);
for (QStringList::const_iterator e = extensions.begin(); e != extensions.end(); ++e)
{
m_extensions << (*e).trimmed();
}
}
//TODO: authentication field
m_isValid = !(host.isEmpty() ||
resourceName.isEmpty() ||
m_versions.isEmpty() ||
m_key.isEmpty() ||
(verb != QStringLiteral("GET")) ||
(!conversionOk || (httpVersion < 1.1f)) ||
(upgrade.toLower() != QStringLiteral("websocket")) ||
(!connectionValues.contains(QStringLiteral("upgrade"), Qt::CaseInsensitive)));
}
return textStream;
}
/*!
\internal
*/
QTextStream &operator >>(QTextStream &stream, QWebSocketHandshakeRequest &request)
{
return request.readFromStream(stream);
}
QT_END_NAMESPACE
|
