Ivan Sorokin
10 years ago
3 changed files with 401 additions and 357 deletions
@ -0,0 +1,389 @@ |
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/*
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* Bittorrent Client using Qt4 and libtorrent. |
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* Copyright (C) 2006 Christophe Dumez |
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* |
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* This program is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU General Public License |
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* as published by the Free Software Foundation; either version 2 |
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* of the License, or (at your option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program; if not, write to the Free Software |
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. |
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* |
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* In addition, as a special exception, the copyright holders give permission to |
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* link this program with the OpenSSL project's "OpenSSL" library (or with |
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* modified versions of it that use the same license as the "OpenSSL" library), |
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* and distribute the linked executables. You must obey the GNU General Public |
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* License in all respects for all of the code used other than "OpenSSL". If you |
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* modify file(s), you may extend this exception to your version of the file(s), |
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* but you are not obligated to do so. If you do not wish to do so, delete this |
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* exception statement from your version. |
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* |
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* Contact : chris@qbittorrent.org |
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*/ |
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#include "filterparserthread.h" |
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FilterParserThread::FilterParserThread(QObject* parent, libtorrent::session *s) : QThread(parent), s(s), abort(false) { |
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} |
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FilterParserThread::~FilterParserThread() { |
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abort = true; |
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wait(); |
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} |
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// Parser for eMule ip filter in DAT format
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int FilterParserThread::parseDATFilterFile(QString filePath) { |
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int ruleCount = 0; |
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QFile file(filePath); |
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if (file.exists()) { |
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if (!file.open(QIODevice::ReadOnly | QIODevice::Text)) { |
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std::cerr << "I/O Error: Could not open ip filer file in read mode." << std::endl; |
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return ruleCount; |
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} |
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unsigned int nbLine = 0; |
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while (!file.atEnd() && !abort) { |
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++nbLine; |
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QByteArray line = file.readLine(); |
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// Ignoring empty lines
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line = line.trimmed(); |
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if (line.isEmpty()) continue; |
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// Ignoring commented lines
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if (line.startsWith('#') || line.startsWith("//")) continue; |
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// Line should be splitted by commas
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QList<QByteArray> partsList = line.split(','); |
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const uint nbElem = partsList.size(); |
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// IP Range should be splitted by a dash
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QList<QByteArray> IPs = partsList.first().split('-'); |
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if (IPs.size() != 2) { |
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qDebug("Ipfilter.dat: line %d is malformed.", nbLine); |
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qDebug("Line was %s", line.constData()); |
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continue; |
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} |
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boost::system::error_code ec; |
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const QString strStartIP = cleanupIPAddress(IPs.at(0)); |
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if (strStartIP.isEmpty()) { |
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qDebug("Ipfilter.dat: line %d is malformed.", nbLine); |
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qDebug("Start IP of the range is malformated: %s", qPrintable(strStartIP)); |
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continue; |
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} |
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libtorrent::address startAddr = libtorrent::address::from_string(qPrintable(strStartIP), ec); |
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if (ec) { |
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qDebug("Ipfilter.dat: line %d is malformed.", nbLine); |
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qDebug("Start IP of the range is malformated: %s", qPrintable(strStartIP)); |
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continue; |
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} |
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const QString strEndIP = cleanupIPAddress(IPs.at(1)); |
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if (strEndIP.isEmpty()) { |
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qDebug("Ipfilter.dat: line %d is malformed.", nbLine); |
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qDebug("End IP of the range is malformated: %s", qPrintable(strEndIP)); |
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continue; |
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} |
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libtorrent::address endAddr = libtorrent::address::from_string(qPrintable(strEndIP), ec); |
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if (ec) { |
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qDebug("Ipfilter.dat: line %d is malformed.", nbLine); |
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qDebug("End IP of the range is malformated: %s", qPrintable(strEndIP)); |
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continue; |
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} |
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if (startAddr.is_v4() != endAddr.is_v4()) { |
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qDebug("Ipfilter.dat: line %d is malformed.", nbLine); |
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qDebug("One IP is IPv4 and the other is IPv6!"); |
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continue; |
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} |
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// Check if there is an access value (apparently not mandatory)
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int nbAccess = 0; |
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if (nbElem > 1) { |
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// There is possibly one
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nbAccess = partsList.at(1).trimmed().toInt(); |
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} |
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if (nbAccess > 127) { |
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// Ignoring this rule because access value is too high
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continue; |
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} |
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// Now Add to the filter
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try { |
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filter.add_rule(startAddr, endAddr, libtorrent::ip_filter::blocked); |
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++ruleCount; |
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}catch(exception) { |
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qDebug("Bad line in filter file, avoided crash..."); |
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} |
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} |
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file.close(); |
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} |
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return ruleCount; |
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} |
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// Parser for PeerGuardian ip filter in p2p format
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int FilterParserThread::parseP2PFilterFile(QString filePath) { |
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int ruleCount = 0; |
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QFile file(filePath); |
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if (file.exists()) { |
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if (!file.open(QIODevice::ReadOnly | QIODevice::Text)) { |
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std::cerr << "I/O Error: Could not open ip filer file in read mode." << std::endl; |
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return ruleCount; |
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} |
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unsigned int nbLine = 0; |
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while (!file.atEnd() && !abort) { |
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++nbLine; |
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QByteArray line = file.readLine().trimmed(); |
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if (line.isEmpty()) continue; |
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// Ignoring commented lines
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if (line.startsWith('#') || line.startsWith("//")) continue; |
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// Line is splitted by :
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QList<QByteArray> partsList = line.split(':'); |
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if (partsList.size() < 2) { |
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qDebug("p2p file: line %d is malformed.", nbLine); |
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continue; |
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} |
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// Get IP range
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QList<QByteArray> IPs = partsList.last().split('-'); |
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if (IPs.size() != 2) { |
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qDebug("p2p file: line %d is malformed.", nbLine); |
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qDebug("line was: %s", line.constData()); |
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continue; |
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} |
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boost::system::error_code ec; |
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QString strStartIP = cleanupIPAddress(IPs.at(0)); |
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if (strStartIP.isEmpty()) { |
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qDebug("p2p file: line %d is malformed.", nbLine); |
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qDebug("Start IP is invalid: %s", qPrintable(strStartIP)); |
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continue; |
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} |
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libtorrent::address startAddr = libtorrent::address::from_string(qPrintable(strStartIP), ec); |
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if (ec) { |
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qDebug("p2p file: line %d is malformed.", nbLine); |
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qDebug("Start IP is invalid: %s", qPrintable(strStartIP)); |
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continue; |
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} |
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QString strEndIP = cleanupIPAddress(IPs.at(1)); |
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if (strEndIP.isEmpty()) { |
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qDebug("p2p file: line %d is malformed.", nbLine); |
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qDebug("End IP is invalid: %s", qPrintable(strStartIP)); |
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continue; |
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} |
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libtorrent::address endAddr = libtorrent::address::from_string(qPrintable(strEndIP), ec); |
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if (ec) { |
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qDebug("p2p file: line %d is malformed.", nbLine); |
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qDebug("End IP is invalid: %s", qPrintable(strStartIP)); |
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continue; |
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} |
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if (startAddr.is_v4() != endAddr.is_v4()) { |
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qDebug("p2p file: line %d is malformed.", nbLine); |
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qDebug("Line was: %s", line.constData()); |
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continue; |
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} |
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try { |
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filter.add_rule(startAddr, endAddr, libtorrent::ip_filter::blocked); |
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++ruleCount; |
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} catch(std::exception&) { |
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qDebug("p2p file: line %d is malformed.", nbLine); |
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qDebug("Line was: %s", line.constData()); |
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continue; |
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} |
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} |
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file.close(); |
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} |
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return ruleCount; |
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} |
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int FilterParserThread::getlineInStream(QDataStream& stream, string& name, char delim) { |
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char c; |
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int total_read = 0; |
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int read; |
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do { |
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read = stream.readRawData(&c, 1); |
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total_read += read; |
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if (read > 0) { |
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if (c != delim) { |
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name += c; |
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} else { |
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// Delim found
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return total_read; |
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} |
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} |
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} while(read > 0); |
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return total_read; |
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} |
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// Parser for PeerGuardian ip filter in p2p format
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int FilterParserThread::parseP2BFilterFile(QString filePath) { |
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int ruleCount = 0; |
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QFile file(filePath); |
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if (file.exists()) { |
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if (!file.open(QIODevice::ReadOnly)) { |
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std::cerr << "I/O Error: Could not open ip filer file in read mode." << std::endl; |
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return ruleCount; |
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} |
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QDataStream stream(&file); |
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// Read header
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char buf[7]; |
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unsigned char version; |
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if ( |
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!stream.readRawData(buf, sizeof(buf)) || |
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memcmp(buf, "\xFF\xFF\xFF\xFFP2B", 7) || |
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!stream.readRawData((char*)&version, sizeof(version)) |
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) { |
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std::cerr << "Parsing Error: The filter file is not a valid PeerGuardian P2B file." << std::endl; |
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return ruleCount; |
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} |
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if (version==1 || version==2) { |
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qDebug ("p2b version 1 or 2"); |
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unsigned int start, end; |
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string name; |
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while(getlineInStream(stream, name, '\0') && !abort) { |
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if ( |
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!stream.readRawData((char*)&start, sizeof(start)) || |
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!stream.readRawData((char*)&end, sizeof(end)) |
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) { |
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std::cerr << "Parsing Error: The filter file is not a valid PeerGuardian P2B file." << std::endl; |
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return ruleCount; |
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} |
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// Network byte order to Host byte order
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// asio address_v4 contructor expects it
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// that way
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libtorrent::address_v4 first(ntohl(start)); |
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libtorrent::address_v4 last(ntohl(end)); |
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// Apply to bittorrent session
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try { |
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filter.add_rule(first, last, libtorrent::ip_filter::blocked); |
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++ruleCount; |
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} catch(std::exception&) {} |
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} |
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} |
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else if (version==3) { |
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qDebug ("p2b version 3"); |
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unsigned int namecount; |
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if (!stream.readRawData((char*)&namecount, sizeof(namecount))) { |
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std::cerr << "Parsing Error: The filter file is not a valid PeerGuardian P2B file." << std::endl; |
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return ruleCount; |
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} |
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namecount=ntohl(namecount); |
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// Reading names although, we don't really care about them
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for (unsigned int i=0; i<namecount; i++) { |
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string name; |
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if (!getlineInStream(stream, name, '\0')) { |
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std::cerr << "Parsing Error: The filter file is not a valid PeerGuardian P2B file." << std::endl; |
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return ruleCount; |
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} |
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if (abort) return ruleCount; |
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} |
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// Reading the ranges
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unsigned int rangecount; |
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if (!stream.readRawData((char*)&rangecount, sizeof(rangecount))) { |
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std::cerr << "Parsing Error: The filter file is not a valid PeerGuardian P2B file." << std::endl; |
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return ruleCount; |
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} |
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rangecount=ntohl(rangecount); |
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unsigned int name, start, end; |
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for (unsigned int i=0; i<rangecount; i++) { |
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if ( |
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!stream.readRawData((char*)&name, sizeof(name)) || |
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!stream.readRawData((char*)&start, sizeof(start)) || |
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!stream.readRawData((char*)&end, sizeof(end)) |
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) { |
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std::cerr << "Parsing Error: The filter file is not a valid PeerGuardian P2B file." << std::endl; |
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return ruleCount; |
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} |
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// Network byte order to Host byte order
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// asio address_v4 contructor expects it
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// that way
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libtorrent::address_v4 first(ntohl(start)); |
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libtorrent::address_v4 last(ntohl(end)); |
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// Apply to bittorrent session
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try { |
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filter.add_rule(first, last, libtorrent::ip_filter::blocked); |
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++ruleCount; |
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} catch(std::exception&) {} |
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if (abort) return ruleCount; |
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} |
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} else { |
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std::cerr << "Parsing Error: The filter file is not a valid PeerGuardian P2B file." << std::endl; |
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return ruleCount; |
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} |
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file.close(); |
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} |
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return ruleCount; |
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} |
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// Process ip filter file
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// Supported formats:
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// * eMule IP list (DAT): http://wiki.phoenixlabs.org/wiki/DAT_Format
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// * PeerGuardian Text (P2P): http://wiki.phoenixlabs.org/wiki/P2P_Format
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// * PeerGuardian Binary (P2B): http://wiki.phoenixlabs.org/wiki/P2B_Format
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void FilterParserThread::processFilterFile(QString _filePath) { |
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// First, import current filter
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filter = s->get_ip_filter(); |
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if (isRunning()) { |
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// Already parsing a filter, abort first
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abort = true; |
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wait(); |
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} |
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abort = false; |
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filePath = _filePath; |
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// Run it
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start(); |
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} |
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void FilterParserThread::processFilterList(libtorrent::session *s, const QStringList& IPs) { |
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// First, import current filter
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libtorrent::ip_filter filter = s->get_ip_filter(); |
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foreach (const QString &ip, IPs) { |
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qDebug("Manual ban of peer %s", ip.toLocal8Bit().constData()); |
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boost::system::error_code ec; |
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libtorrent::address addr = libtorrent::address::from_string(ip.toLocal8Bit().constData(), ec); |
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Q_ASSERT(!ec); |
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if (!ec) |
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filter.add_rule(addr, addr, libtorrent::ip_filter::blocked); |
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} |
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s->set_ip_filter(filter); |
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} |
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QString FilterParserThread::cleanupIPAddress(QString _ip) { |
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QHostAddress ip(_ip.trimmed()); |
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if (ip.isNull()) { |
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return QString(); |
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} |
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return ip.toString(); |
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} |
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void FilterParserThread::run() { |
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qDebug("Processing filter file"); |
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int ruleCount = 0; |
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if (filePath.endsWith(".p2p", Qt::CaseInsensitive)) { |
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// PeerGuardian p2p file
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ruleCount = parseP2PFilterFile(filePath); |
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} else { |
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if (filePath.endsWith(".p2b", Qt::CaseInsensitive)) { |
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// PeerGuardian p2b file
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ruleCount = parseP2BFilterFile(filePath); |
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} else { |
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// Default: eMule DAT format
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ruleCount = parseDATFilterFile(filePath); |
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} |
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} |
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if (abort) |
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return; |
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try { |
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s->set_ip_filter(filter); |
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emit IPFilterParsed(ruleCount); |
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} catch(std::exception&) { |
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emit IPFilterError(); |
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} |
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qDebug("IP Filter thread: finished parsing, filter applied"); |
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} |
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