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/****************************************************************************
**
** Copyright (C) 2015 The Qt Company Ltd.
** Contact: http://www.qt.io/licensing/
**
** This file is part of the QtCore module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL21$
** 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 The Qt Company. For licensing terms
** and conditions see http://www.qt.io/terms-conditions. For further
** information use the contact form at http://www.qt.io/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 or version 3 as published by the Free
** Software Foundation and appearing in the file LICENSE.LGPLv21 and
** LICENSE.LGPLv3 included in the packaging of this file. Please review the
** following information to ensure the GNU Lesser General Public License
** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** As a special exception, The Qt Company gives you certain additional
** rights. These rights are described in The Qt Company LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "qplatformdefs.h"
#include "qurl.h"
#include "private/qurltlds_p.h"
#include "private/qtldurl_p.h"
#include "QtCore/qstring.h"
#include "QtCore/qvector.h"
QT_BEGIN_NAMESPACE
static bool containsTLDEntry(const QString &entry)
{
int index = qt_hash(entry) % tldCount;
// select the right chunk from the big table
short chunk = 0;
uint chunkIndex = tldIndices[index], offset = 0;
while (chunk < tldChunkCount && tldIndices[index] >= tldChunks[chunk]) {
chunkIndex -= tldChunks[chunk];
offset += tldChunks[chunk];
chunk++;
}
// check all the entries from the given index
while (chunkIndex < tldIndices[index+1] - offset) {
QString currentEntry = QString::fromUtf8(tldData[chunk] + chunkIndex);
if (currentEntry == entry)
return true;
chunkIndex += qstrlen(tldData[chunk] + chunkIndex) + 1; // +1 for the ending \0
}
return false;
}
/*!
\internal
Return the top-level-domain per Qt's copy of the Mozilla public suffix list of
\a domain.
*/
Q_CORE_EXPORT QString qTopLevelDomain(const QString &domain)
{
const QString domainLower = domain.toLower();
QVector<QStringRef> sections = domainLower.splitRef(QLatin1Char('.'), QString::SkipEmptyParts);
if (sections.isEmpty())
return QString();
QString level, tld;
for (int j = sections.count() - 1; j >= 0; --j) {
level.prepend(QLatin1Char('.') + sections.at(j));
if (qIsEffectiveTLD(level.right(level.size() - 1)))
tld = level;
}
return tld;
}
/*!
\internal
Return true if \a domain is a top-level-domain per Qt's copy of the Mozilla public suffix list.
*/
Q_CORE_EXPORT bool qIsEffectiveTLD(const QString &domain)
{
// for domain 'foo.bar.com':
// 1. return if TLD table contains 'foo.bar.com'
if (containsTLDEntry(domain))
return true;
if (domain.contains(QLatin1Char('.'))) {
int count = domain.size() - domain.indexOf(QLatin1Char('.'));
QString wildCardDomain;
wildCardDomain.reserve(count + 1);
wildCardDomain.append(QLatin1Char('*'));
wildCardDomain.append(domain.right(count));
// 2. if table contains '*.bar.com',
// test if table contains '!foo.bar.com'
if (containsTLDEntry(wildCardDomain)) {
QString exceptionDomain;
exceptionDomain.reserve(domain.size() + 1);
exceptionDomain.append(QLatin1Char('!'));
exceptionDomain.append(domain);
return (! containsTLDEntry(exceptionDomain));
}
}
return false;
}
QT_END_NAMESPACE
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