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/* ============================================================
*
* This file is a part of the rekonq project
*
* Copyright (C) 2010 by Benjamin Poulain <ikipou at gmail dot com>
*
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License or (at your option) version 3 or any later version
* accepted by the membership of KDE e.V. (or its successor approved
* by the membership of KDE e.V.), which shall act as a proxy
* defined in Section 14 of version 3 of the license.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* ============================================================ */
// Self Includes
#include "adblockruletextmatchimpl.h"
// Rekonq Includes
#include "rekonq_defines.h"
AdBlockRuleTextMatchImpl::AdBlockRuleTextMatchImpl(const QString &filter)
: AdBlockRuleImpl(filter)
{
Q_ASSERT(AdBlockRuleTextMatchImpl::isTextMatchFilter(filter));
m_textToMatch = filter.toLower();
m_textToMatch.remove(QL1C('*'));
}
bool AdBlockRuleTextMatchImpl::match(const QNetworkRequest &request, const QString &encodedUrl, const QString &encodedUrlLowerCase) const
{
Q_UNUSED(encodedUrl);
Q_UNUSED(request);
// Case sensitive compare is faster, but would be incorrect with encodedUrl since
// we do want case insensitive.
// What we do is work on a lowercase version of m_textToMatch, and compare to the lowercase
// version of encodedUrl.
return encodedUrlLowerCase.contains(m_textToMatch, Qt::CaseSensitive);
}
bool AdBlockRuleTextMatchImpl::isTextMatchFilter(const QString &filter)
{
// We don't deal with options just yet
if (filter.contains(QL1C('$')))
return false;
// We don't deal with element matching
if (filter.contains(QL1S("##")))
return false;
// We don't deal with the begin-end matching
if (filter.startsWith(QL1C('|')) || filter.endsWith(QL1C('|')))
return false;
// We only handle * at the beginning or the end
int starPosition = filter.indexOf(QL1C('*'));
while (starPosition >= 0) {
if (starPosition != 0 && starPosition != (filter.length() - 1))
return false;
starPosition = filter.indexOf(QL1C('*'), starPosition + 1);
}
return true;
}
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