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
|
/****************************************************************************
**
** Copyright (C) 2010 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.
**
**
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "qnetworkaccessdatabackend_p.h"
#include "qnetworkrequest.h"
#include "qnetworkreply.h"
#include "qurlinfo.h"
#include "private/qdataurl_p.h"
#include <qcoreapplication.h>
QT_BEGIN_NAMESPACE
QNetworkAccessBackend *
QNetworkAccessDataBackendFactory::create(QNetworkAccessManager::Operation,
const QNetworkRequest &request) const
{
if (request.url().scheme() == QLatin1String("data"))
return new QNetworkAccessDataBackend;
return 0;
}
QNetworkAccessDataBackend::QNetworkAccessDataBackend()
{
}
QNetworkAccessDataBackend::~QNetworkAccessDataBackend()
{
}
void QNetworkAccessDataBackend::open()
{
QUrl uri = request().url();
if (operation() != QNetworkAccessManager::GetOperation &&
operation() != QNetworkAccessManager::HeadOperation) {
// data: doesn't support anything but GET
const QString msg = QCoreApplication::translate("QNetworkAccessDataBackend",
"Operation not supported on %1")
.arg(uri.toString());
error(QNetworkReply::ContentOperationNotPermittedError, msg);
finished();
return;
}
QPair<QString, QByteArray> decoded = qDecodeDataUrl(uri);
if (! decoded.first.isNull()) {
setHeader(QNetworkRequest::ContentTypeHeader, decoded.first);
setHeader(QNetworkRequest::ContentLengthHeader, decoded.second.size());
emit metaDataChanged();
QByteDataBuffer list;
list.append(decoded.second);
decoded.second.clear(); // important because of implicit sharing!
writeDownstreamData(list);
finished();
return;
}
// something wrong with this URI
const QString msg = QCoreApplication::translate("QNetworkAccessDataBackend",
"Invalid URI: %1").arg(uri.toString());
error(QNetworkReply::ProtocolFailure, msg);
finished();
}
void QNetworkAccessDataBackend::closeDownstreamChannel()
{
}
void QNetworkAccessDataBackend::closeUpstreamChannel()
{
}
bool QNetworkAccessDataBackend::waitForDownstreamReadyRead(int)
{
return false;
}
bool QNetworkAccessDataBackend::waitForUpstreamBytesWritten(int)
{
return false;
}
bool QNetworkAccessDataBackend::processRequestSynchronously()
{
start();
return true;
}
QT_END_NAMESPACE
|
