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/****************************************************************************
**
** Copyright (C) 2012 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the QtNetwork 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 "qnetworkaccessdatabackend_p.h"
#include "qnetworkrequest.h"
#include "qnetworkreply.h"
#include "qurlinfo.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
QString msg = QObject::tr("Operation not supported on %1")
.arg(uri.toString());
error(QNetworkReply::ContentOperationNotPermittedError, msg);
finished();
return;
}
if (uri.host().isEmpty()) {
setHeader(QNetworkRequest::ContentTypeHeader, QLatin1String("text/plain;charset=US-ASCII"));
// the following would have been the correct thing, but
// reality often differs from the specification. People have
// data: URIs with ? and #
//QByteArray data = QByteArray::fromPercentEncoding(uri.encodedPath());
QByteArray data = QByteArray::fromPercentEncoding(uri.toEncoded());
// remove the data: scheme
data.remove(0, 5);
// parse it:
int pos = data.indexOf(',');
if (pos != -1) {
QByteArray payload = data.mid(pos + 1);
data.truncate(pos);
data = data.trimmed();
// find out if the payload is encoded in Base64
if (data.endsWith(";base64")) {
payload = QByteArray::fromBase64(payload);
data.chop(7);
}
if (data.toLower().startsWith("charset")) {
int i = 7; // strlen("charset")
while (data.at(i) == ' ')
++i;
if (data.at(i) == '=')
data.prepend("text/plain;");
}
if (!data.isEmpty())
setHeader(QNetworkRequest::ContentTypeHeader, data.trimmed());
setHeader(QNetworkRequest::ContentLengthHeader, payload.size());
emit metaDataChanged();
QByteDataBuffer list;
list.append(payload);
payload.clear(); // important because of implicit sharing!
writeDownstreamData(list);
finished();
return;
}
}
// something wrong with this URI
QString msg = QObject::tr("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;
}
QT_END_NAMESPACE
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