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101 lines
3.7 KiB
C++
101 lines
3.7 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2015 The Qt Company Ltd.
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** Contact: http://www.qt.io/licensing/
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**
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** This file is part of the QtCore module of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:LGPL$
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** Commercial License Usage
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** Licensees holding valid commercial Qt licenses may use this file in
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** accordance with the commercial license agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and The Qt Company. For licensing terms
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** and conditions see http://www.qt.io/terms-conditions. For further
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** information use the contact form at http://www.qt.io/contact-us.
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**
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** GNU Lesser General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU Lesser
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** General Public License version 2.1 or version 3 as published by the Free
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** Software Foundation and appearing in the file LICENSE.LGPLv21 and
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** LICENSE.LGPLv3 included in the packaging of this file. Please review the
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** following information to ensure the GNU Lesser General Public License
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** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
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** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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**
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** As a special exception, The Qt Company gives you certain additional
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** rights. These rights are described in The Qt Company LGPL Exception
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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**
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** GNU General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU
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** General Public License version 3.0 as published by the Free Software
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** Foundation and appearing in the file LICENSE.GPL included in the
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** packaging of this file. Please review the following information to
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** ensure the GNU General Public License version 3.0 requirements will be
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** met: http://www.gnu.org/copyleft/gpl.html.
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#include "qplatformdefs.h"
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#include "qurl.h"
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#include "qdataurl_p.h"
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QT_BEGIN_NAMESPACE
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/*!
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\internal
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Decode a data: URL into its mimetype and payload. Returns a null string if
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the URL could not be decoded.
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*/
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Q_CORE_EXPORT QPair<QString, QByteArray> qDecodeDataUrl(const QUrl &uri)
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{
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QString mimeType;
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QByteArray payload;
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if (uri.scheme() == QLatin1String("data") && uri.host().isEmpty()) {
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mimeType = QLatin1String("text/plain;charset=US-ASCII");
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// the following would have been the correct thing, but
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// reality often differs from the specification. People have
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// data: URIs with ? and #
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//QByteArray data = QByteArray::fromPercentEncoding(uri.encodedPath());
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QByteArray data = QByteArray::fromPercentEncoding(uri.toEncoded());
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// remove the data: scheme
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data.remove(0, 5);
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// parse it:
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int pos = data.indexOf(',');
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if (pos != -1) {
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payload = data.mid(pos + 1);
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data.truncate(pos);
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data = data.trimmed();
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// find out if the payload is encoded in Base64
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if (data.endsWith(";base64")) {
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payload = QByteArray::fromBase64(payload);
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data.chop(7);
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}
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if (data.toLower().startsWith("charset")) {
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int i = 7; // strlen("charset")
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while (data.at(i) == ' ')
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++i;
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if (data.at(i) == '=')
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data.prepend("text/plain;");
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}
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if (!data.isEmpty())
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mimeType = QString::fromLatin1(data.trimmed().constData());
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}
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}
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return QPair<QString,QByteArray>(mimeType,payload);
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}
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QT_END_NAMESPACE
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