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authorAndrea Diamantini <adjam7@gmail.com>2009-11-23 03:11:26 +0100
committerAndrea Diamantini <adjam7@gmail.com>2009-11-23 03:11:26 +0100
commitdf7a2820a54d8b69e87b495269b88f9ae5ac156d (patch)
tree4124db211bddf2dbf784d0eddbf70bbb8c24ee0f /src/adblock/adblockrule.cpp
parentFixing urlbar size (diff)
parentSaving 4 bytes per tab :) (diff)
downloadrekonq-df7a2820a54d8b69e87b495269b88f9ae5ac156d.tar.xz
Merge branch 'devAdBlock'
Diffstat (limited to 'src/adblock/adblockrule.cpp')
-rw-r--r--src/adblock/adblockrule.cpp173
1 files changed, 173 insertions, 0 deletions
diff --git a/src/adblock/adblockrule.cpp b/src/adblock/adblockrule.cpp
new file mode 100644
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+/*
+ * Copyright (c) 2009, Zsombor Gegesy <gzsombor@gmail.com>
+ * Copyright (c) 2009, Benjamin C. Meyer <ben@meyerhome.net>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the Benjamin Meyer nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * ============================================================
+ *
+ * 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/>.
+ *
+ * ============================================================ */
+
+
+#include "adblockrule.h"
+
+#include <QDebug>
+#include <QRegExp>
+#include <QUrl>
+
+
+AdBlockRule::AdBlockRule(const QString &filter)
+ : m_cssRule(false)
+ , m_exceptionRule(false)
+ , m_enabledRule(true)
+{
+ bool isRegExpRule = false;
+
+ if (filter.startsWith(QLatin1String("!")) || filter.trimmed().isEmpty())
+ m_enabledRule = false;
+
+ if (filter.contains(QLatin1String("##")))
+ m_cssRule = true;
+
+ QString parsedLine = filter;
+ if (parsedLine.startsWith(QLatin1String("@@")))
+ {
+ m_exceptionRule = true;
+ parsedLine = parsedLine.mid(2);
+ }
+
+ if (parsedLine.startsWith(QLatin1Char('/')))
+ {
+ if (parsedLine.endsWith(QLatin1Char('/')))
+ {
+ parsedLine = parsedLine.mid(1);
+ parsedLine = parsedLine.left(parsedLine.size() - 1);
+ isRegExpRule = true;
+ }
+ }
+
+ int options = parsedLine.indexOf(QLatin1String("$"), 0);
+ if (options >= 0)
+ {
+ m_options = parsedLine.mid(options + 1).split(QLatin1Char(','));
+ parsedLine = parsedLine.left(options);
+ }
+
+ if(!isRegExpRule)
+ parsedLine = convertPatternToRegExp(parsedLine);
+ m_regExp = QRegExp(parsedLine, Qt::CaseInsensitive, QRegExp::RegExp2);
+
+ if (m_options.contains(QLatin1String("match-case")))
+ {
+ m_regExp.setCaseSensitivity(Qt::CaseSensitive);
+ m_options.removeOne(QLatin1String("match-case"));
+ }
+}
+
+
+// here return false means that rule doesn't match,
+// so that url is allowed
+// return true means "matched rule", so stop url!
+bool AdBlockRule::match(const QString &encodedUrl) const
+{
+ if (m_cssRule)
+ return false;
+
+ if (!m_enabledRule)
+ return false;
+
+ bool matched = m_regExp.indexIn(encodedUrl) != -1;
+
+ if (matched && !m_options.isEmpty())
+ {
+ // we only support domain right now
+ if (m_options.count() == 1)
+ {
+ foreach (const QString &option, m_options)
+ {
+ if (option.startsWith(QLatin1String("domain=")))
+ {
+ QUrl url = QUrl::fromEncoded(encodedUrl.toUtf8());
+ QString host = url.host();
+ QStringList domainOptions = option.mid(7).split(QLatin1Char('|'));
+ foreach (QString domainOption, domainOptions)
+ {
+ bool negate = domainOption.at(0) == QLatin1Char('~');
+ if (negate)
+ domainOption = domainOption.mid(1);
+ bool hostMatched = domainOption == host;
+ if (hostMatched && !negate)
+ return true;
+ if (!hostMatched && negate)
+ return true;
+ }
+ }
+ }
+ }
+ return false;
+ }
+
+ return matched;
+}
+
+
+QString AdBlockRule::convertPatternToRegExp(const QString &wildcardPattern)
+{
+ QString pattern = wildcardPattern;
+ return pattern.replace(QRegExp(QLatin1String("\\*+")), QLatin1String("*")) // remove multiple wildcards
+ .replace(QRegExp(QLatin1String("\\^\\|$")), QLatin1String("^")) // remove anchors following separator placeholder
+ .replace(QRegExp(QLatin1String("^(\\*)")), QLatin1String("")) // remove leading wildcards
+ .replace(QRegExp(QLatin1String("(\\*)$")), QLatin1String("")) // remove trailing wildcards
+ .replace(QRegExp(QLatin1String("(\\W)")), QLatin1String("\\\\1")) // escape special symbols
+ .replace(QRegExp(QLatin1String("^\\\\\\|\\\\\\|")),
+ QLatin1String("^[\\w\\-]+:\\/+(?!\\/)(?:[^\\/]+\\.)?")) // process extended anchor at expression start
+ .replace(QRegExp(QLatin1String("\\\\\\^")),
+ QLatin1String("(?:[^\\w\\d\\-.%]|$)")) // process separator placeholders
+ .replace(QRegExp(QLatin1String("^\\\\\\|")), QLatin1String("^")) // process anchor at expression start
+ .replace(QRegExp(QLatin1String("\\\\\\|$")), QLatin1String("$")) // process anchor at expression end
+ .replace(QRegExp(QLatin1String("\\\\\\*")), QLatin1String(".*")) // replace wildcards by .*
+ ;
+}