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authortoma <toma@283d02a7-25f6-0310-bc7c-ecb5cbfe19da>2009-11-25 17:56:58 +0000
committertoma <toma@283d02a7-25f6-0310-bc7c-ecb5cbfe19da>2009-11-25 17:56:58 +0000
commit460c52653ab0dcca6f19a4f492ed2c5e4e963ab0 (patch)
tree67208f7c145782a7e90b123b982ca78d88cc2c87 /kmail/spamheaderanalyzer.cpp
downloadtdepim-460c52653ab0dcca6f19a4f492ed2c5e4e963ab0.tar.gz
tdepim-460c52653ab0dcca6f19a4f492ed2c5e4e963ab0.zip
Copy the KDE 3.5 branch to branches/trinity for new KDE 3.5 features.
BUG:215923 git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/kdepim@1054174 283d02a7-25f6-0310-bc7c-ecb5cbfe19da
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+/* -*- mode: C++; c-file-style: "gnu" -*-
+ spamheaderanalyzer.cpp
+
+ This file is part of KMail, the KDE mail client.
+ Copyright (c) 2004 Patrick Audley <paudley@blackcat.ca>
+ Copyright (c) 2004 Ingo Kloecker <kloecker@kde.org>
+
+ KMail 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) any later version.
+
+ KMail 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, write to the Free Software
+ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+
+ In addition, as a special exception, the copyright holders give
+ permission to link the code of this program with any edition of
+ the Qt library by Trolltech AS, Norway (or with modified versions
+ of Qt that use the same license as Qt), and distribute linked
+ combinations including the two. You must obey the GNU General
+ Public License in all respects for all of the code used other than
+ Qt. If you modify this file, you may extend this exception to
+ your version of the file, but you are not obligated to do so. If
+ you do not wish to do so, delete this exception statement from
+ your version.
+*/
+
+#include "spamheaderanalyzer.h"
+
+#include "antispamconfig.h"
+#include "kmmessage.h"
+
+#include <kdebug.h>
+
+using namespace KMail;
+
+// static
+SpamScores SpamHeaderAnalyzer::getSpamScores( const KMMessage* message ) {
+ kdDebug(5006) << k_funcinfo << endl;
+ SpamScores scores;
+ SpamAgents agents = AntiSpamConfig::instance()->uniqueAgents();
+
+ for ( SpamAgentsIterator it = agents.begin(); it != agents.end(); ++it ) {
+ float score = -2.0;
+
+ // Skip bogus agents
+ if ( (*it).scoreType() == SpamAgentNone )
+ continue;
+
+ // Do we have the needed field for this agent?
+ QString mField = message->headerField( (*it).header() );
+ if ( mField.isEmpty() )
+ continue;
+
+ QString scoreString;
+ bool scoreValid = false;
+
+ if ( (*it).scoreType() != SpamAgentBool ) {
+ // Can we extract the score?
+ QRegExp scorePattern = (*it).scorePattern();
+ if ( scorePattern.search( mField ) != -1 ) {
+ scoreString = scorePattern.cap( 1 );
+ scoreValid = true;
+ }
+ } else
+ scoreValid = true;
+
+ if ( !scoreValid ) {
+ score = -5.0;
+ kdDebug(5006) << "Score could not be extracted from header '"
+ << mField << "'" << endl;
+ } else {
+ bool floatValid = false;
+ switch ( (*it).scoreType() ) {
+ case SpamAgentNone:
+ score = -2.0;
+ break;
+
+ case SpamAgentBool:
+ if( (*it).scorePattern().search( mField ) == -1 )
+ score = 0.0;
+ else
+ score = 100.0;
+ break;
+
+ case SpamAgentFloat:
+ score = scoreString.toFloat( &floatValid );
+ if ( !floatValid ) {
+ score = -3.0;
+ kdDebug(5006) << "Score (" << scoreString << ") is no number"
+ << endl;
+ }
+ else
+ score *= 100.0;
+ break;
+
+ case SpamAgentFloatLarge:
+ score = scoreString.toFloat( &floatValid );
+ if ( !floatValid ) {
+ score = -3.0;
+ kdDebug(5006) << "Score (" << scoreString << ") is no number"
+ << endl;
+ }
+ break;
+
+ case SpamAgentAdjustedFloat:
+ score = scoreString.toFloat( &floatValid );
+ if ( !floatValid ) {
+ score = -3.0;
+ kdDebug(5006) << "Score (" << scoreString << ") is no number"
+ << endl;
+ break;
+ }
+
+ // Find the threshold value.
+ QString thresholdString;
+ QRegExp thresholdPattern = (*it).thresholdPattern();
+ if ( thresholdPattern.search( mField ) != -1 ) {
+ thresholdString = thresholdPattern.cap( 1 );
+ }
+ else {
+ score = -6.0;
+ kdDebug(5006) << "Threshold could not be extracted from header '"
+ << mField << "'" << endl;
+ break;
+ }
+ float threshold = thresholdString.toFloat( &floatValid );
+ if ( !floatValid || ( threshold <= 0.0 ) ) {
+ score = -4.0;
+ kdDebug(5006) << "Threshold (" << thresholdString << ") is no "
+ << "number or is negative" << endl;
+ break;
+ }
+
+ // Normalize the score. Anything below 0 means 0%, anything above
+ // threshold mean 100%. Values between 0 and threshold are mapped
+ // linearily to 0% - 100%.
+ if ( score < 0.0 )
+ score = 0.0;
+ else if ( score > threshold )
+ score = 100.0;
+ else
+ score = score / threshold * 100.0;
+ break;
+ }
+ }
+ scores.append( SpamScore( (*it).name(), score, mField ) );
+ }
+
+ return scores;
+}