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/* ============================================================
*
* This file is a part of the rekonq project
*
* Copyright (C) 2009 by Andrea Diamantini <adjam7 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 "adblockmanager.h"
#include "adblockmanager.moc"
// Local Includes
#include "adblocknetworkreply.h"
#include "webpage.h"
// KDE Includes
#include <KSharedConfig>
#include <KConfigGroup>
#include <KDebug>
// Qt Includes
#include <QUrl>
#include <QWebElement>
AdBlockManager::AdBlockManager(QObject *parent)
: QObject(parent)
, _isAdblockEnabled(false)
, _isHideAdsEnabled(false)
{
loadSettings();
}
AdBlockManager::~AdBlockManager()
{
}
void AdBlockManager::loadSettings()
{
KSharedConfig::Ptr config = KSharedConfig::openConfig("khtmlrc", KConfig::NoGlobals);
KConfigGroup cg( config, "Filter Settings" );
if ( cg.exists() )
{
_isAdblockEnabled = cg.readEntry("Enabled", false);
_isHideAdsEnabled = cg.readEntry("Shrink", false);
// no need to load filters if adblock is not enabled :)
if(!_isAdblockEnabled)
return;
_whiteList.clear();
_blackList.clear();
_hideList.clear();
QMap<QString,QString> entryMap = cg.entryMap();
QMap<QString,QString>::ConstIterator it;
for( it = entryMap.constBegin(); it != entryMap.constEnd(); ++it )
{
QString name = it.key();
QString url = it.value();
if (name.startsWith(QLatin1String("Filter")))
{
if(!url.startsWith("!"))
{
// white rules
if(url.startsWith("@@"))
{
AdBlockRule rule( url.mid(2) );
_whiteList << rule;
continue;
}
// hide (CSS) rules
if(url.startsWith("##"))
{
_hideList << url.mid(2);
continue;
}
AdBlockRule rule( url );
_blackList << rule;
}
}
}
}
}
QNetworkReply *AdBlockManager::block(const QNetworkRequest &request)
{
if (!_isAdblockEnabled)
return 0;
// we (ad)block just http traffic
if(request.url().scheme() != QLatin1String("http"))
return 0;
QString urlString = request.url().toString();
// check white rules before :)
foreach(const AdBlockRule &filter, _whiteList)
{
if(filter.match(urlString))
{
kDebug() << "****ADBLOCK: WHITE RULE (@@) Matched: ***********" << urlString;
return 0;
}
}
// then check the black ones :(
foreach(const AdBlockRule &filter, _blackList)
{
if(filter.match(urlString))
{
kDebug() << "****ADBLOCK: BLACK RULE Matched: ***********" << urlString;
AdBlockNetworkReply *reply = new AdBlockNetworkReply(request, urlString, this);
return reply;
}
}
// no match
return 0;
}
void AdBlockManager::applyHidingRules(WebPage *page)
{
if(!page || !page->mainFrame())
return;
if (!_isAdblockEnabled)
return;
if (!_isHideAdsEnabled)
return;
foreach(const QString &filter, _hideList)
{
QWebElement document = page->mainFrame()->documentElement();
QWebElementCollection elements = document.findAll(filter);
foreach (QWebElement element, elements)
{
element.setStyleProperty(QLatin1String("visibility"), QLatin1String("hidden"));
element.removeFromDocument();
}
}
}
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