mailimporter/filter_mailapp.cpp

   1 /***************************************************************************
   2                           filter_mailapp.cxx  -  OS X Mail App import
   3                              -------------------
   4     copyright            : (C) 2004 by Chris Howells
   5     email                : howells@kde.org
   6
   7     Derived from code by:
   8     copyright            : (C) 2003 by Laurence Anderson
   9     email                : l.d.anderson@warwick.ac.uk
  10
  11  ***************************************************************************/
  12
  13 /***************************************************************************
  14  *                                                                         *
  15  *   This program is free software; you can redistribute it and/or modify  *
  16  *   it under the terms of the GNU General Public License as published by  *
  17  *   the Free Software Foundation; either version 2 of the License, or     *
  18  *   (at your option) any later version.                                   *
  19  *                                                                         *
  20  ***************************************************************************/
  21
  22
  23 #include <klocale.h>
  24 #include <kfiledialog.h>
  25 #include <ktemporaryfile.h>
  26 #include <kdebug.h>
  27
  28 #include "filter_mailapp.h"
  29
  30 using namespace MailImporter;
  31
  32
  33 FilterMailApp::FilterMailApp() :
  34     Filter( i18n("Import From OS X Mail"),
  35             "Chris Howells<br /><br />Filter accelerated by Danny Kukawka )",
  36             i18n("<p><b>OS X Mail Import Filter</b></p>"
  37                  "<p>This filter imports e-mails from the Mail client in Apple Mac OS X.</p>"))
  38 {
  39 }
  40
  41 FilterMailApp::~FilterMailApp()
  42 {
  43 }
  44
  45
  46
  47 void FilterMailApp::import()
  48 {
  49     const QString directory = KFileDialog::getExistingDirectory( QDir::homePath(), filterInfo()->parent() );
  50     importMails( directory );
  51 }
  52
  53 void FilterMailApp::importMails( const QString  &maildir )
  54 {
  55     int currentFile = 1;
  56     int overall_status = 0;
  57     bool first_msg = true;
  58
  59     setMailDir(maildir);
  60     if ( mailDir().isEmpty() )
  61     {
  62         filterInfo()->alert(i18n("No files selected."));
  63         return;
  64     }
  65
  66     filterInfo()->setOverall(0);
  67
  68     //   kDebug() <<"starting by looking in directory" << directory;
  69     traverseDirectory(mailDir());
  70
  71     QStringList::ConstIterator end( mMboxFiles.constEnd() );
  72     for ( QStringList::ConstIterator filename = mMboxFiles.constBegin(); filename != end; ++filename, ++currentFile) {
  73         if ( filterInfo()->shouldTerminate() )
  74             break;
  75         QFile mbox( *filename );
  76         if (! mbox.open( QIODevice::ReadOnly ) ) {
  77             filterInfo()->alert( i18n("Unable to open %1, skipping", *filename ) );
  78         } else {
  79             QFileInfo filenameInfo( *filename );
  80             kDebug() <<"importing filename" << *filename;
  81             QStringList name = (*filename).split('/', QString::SkipEmptyParts);
  82             QString folderName(name[name.count() - 2]);
  83
  84             filterInfo()->setCurrent(0);
  85             filterInfo()->addInfoLogEntry( i18n("Importing emails from %1...", *filename ) );
  86             filterInfo()->setFrom( *filename );
  87             filterInfo()->setTo( folderName );
  88
  89             QByteArray input(MAX_LINE,'\0');
  90             long l = 0;
  91
  92             while ( ! mbox.atEnd() ) {
  93                 KTemporaryFile tmp;
  94                 tmp.open();
  95                 /* comment by Danny:
  96          * Don't use QTextStream to read from mbox, better use QDataStream. QTextStream only
  97          * support Unicode/Latin1/Locale. So you lost information from emails with
  98          * charset!=Unicode/Latin1/Locale (e.g. KOI8-R) and Content-Transfer-Encoding != base64
  99          * (e.g. 8Bit). It also not help to convert the QTextStream to Unicode. By this you
 100          * get Unicode/UTF-email but KMail can't detect the correct charset.
 101          */
 102                 QByteArray separate;
 103
 104                 if(!first_msg)
 105                     tmp.write( input, l );
 106                 l = mbox.readLine( input.data(),MAX_LINE); // read the first line, prevent "From "
 107                 tmp.write( input, l );
 108
 109                 while ( ! mbox.atEnd() && (l = mbox.readLine(input.data(),MAX_LINE)) &&((separate = input.data()).left(5) != "From ")) {
 110                     tmp.write( input, l );
 111                 }
 112                 tmp.flush();
 113                 first_msg = false;
 114
 115                 /* comment by Danny Kukawka:
 116          * addMessage() == old function, need more time and check for duplicates
 117          * addMessage_fastImport == new function, faster and no check for duplicates
 118          */
 119                 if(filterInfo()->removeDupMessage())
 120                     addMessage( folderName, tmp.fileName() );
 121                 else
 122                     addMessage_fastImport( folderName, tmp.fileName() );
 123
 124                 int currentPercentage = (int) ( ( (float) mbox.pos() / filenameInfo.size() ) * 100 );
 125                 filterInfo()->setCurrent( currentPercentage );
 126                 if (currentFile == 1)
 127                     overall_status = (int)( currentPercentage*((float)currentFile/mMboxFiles.count()));
 128                 else
 129                     overall_status = (int)(((currentFile-1)*(100.0/(float)mMboxFiles.count()))+(currentPercentage*(1.0/(float)mMboxFiles.count())));
 130                 filterInfo()->setOverall( overall_status );
 131                 if ( filterInfo()->shouldTerminate() ) break;
 132             }
 133
 134             filterInfo()->addInfoLogEntry( i18n("Finished importing emails from %1", *filename ) );
 135             if (countDuplicates() > 0) {
 136                 filterInfo()->addInfoLogEntry( i18np("1 duplicate message not imported to folder %2 in KMail",
 137                                                      "%1 duplicate messages not imported to folder %2 in KMail", countDuplicates(), folderName));
 138             }
 139             setCountDuplicates(0);
 140             mbox.close();
 141         }
 142     }
 143     if (filterInfo()->shouldTerminate())
 144         filterInfo()->addInfoLogEntry( i18n("Finished import, canceled by user."));
 145 }
 146
 147 void FilterMailApp::traverseDirectory(const QString &dirName)
 148 {
 149     QDir dir(dirName);
 150     dir.setFilter(QDir::Dirs | QDir::Files);
 151
 152     const QFileInfoList fileinfolist = dir.entryInfoList();
 153     Q_FOREACH( const QFileInfo &fi, fileinfolist ) {
 154         const QString filename(fi.fileName());
 155         if (filename == QLatin1String( "." ) || filename == QLatin1String( ".." ) ) {
 156             continue;
 157         }
 158         if (fi.isDir() && fi.isReadable()) {
 159             traverseDirectory(fi.filePath());
 160         } else {
 161             if (!fi.isDir() & &filename == QLatin1String( "mbox" )) {
 162                 kDebug() <<"adding the file" << fi.filePath();
 163                 mMboxFiles.append(fi.filePath());
 164             }
 165         }
 166     }
 167 }