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

1 files changed, 157 insertions, 0 deletions

diff --git a/kmail/spamheaderanalyzer.cpp b/kmail/spamheaderanalyzer.cpp
new file mode 100644
index 00000000..b6430363
--- /dev/null
+++ b/kmail/spamheaderanalyzer.cpp
@@ -0,0 +1,157 @@
+/*  -*- 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;
+}