kmailcvt/filter_thunderbird.cxx

   1 /***************************************************************************
   2             filter_thunderbird.cxx  -  Thunderbird mail import
   3                              -------------------
   4     begin                : Januar 26 2005
   5     copyright            : (C) 2005 by Danny Kukawka
   6     email                : danny.kukawka@web.de
   7  ***************************************************************************/
   8
   9 /***************************************************************************
  10  *                                                                         *
  11  *   This program is free software; you can redistribute it and/or modify  *
  12  *   it under the terms of the GNU General Public License as published by  *
  13  *   the Free Software Foundation; either version 2 of the License, or     *
  14  *   (at your option) any later version.                                   *
  15  *                                                                         *
  16  ***************************************************************************/
  17
  18 #include "filter_thunderbird.hxx"
  19
  20 #include <klocale.h>
  21 #include <kfiledialog.h>
  22 #include <ktemporaryfile.h>
  23
  24
  25 /** Default constructor. */
  26 FilterThunderbird::FilterThunderbird(void) :
  27         Filter(i18n("Import Thunderbird/Mozilla Local Mails and Folder Structure"),
  28                "Danny Kukawka",
  29                i18n("<p><b>Thunderbird/Mozilla import filter</b></p>"
  30                     "<p>Select your base Thunderbird/Mozilla mailfolder"
  31                     " (usually ~/.thunderbird/*.default/Mail/Local Folders/).</p>"
  32                     "<p><b>Note:</b> Never choose a Folder which <u>does not</u> contain mbox-files (for example,"
  33                     " a maildir): if you do, you will get many new folders.</p>"
  34                     "<p>Since it is possible to recreate the folder structure, the folders "
  35                     "will be stored under: \"Thunderbird-Import\".</p>"))
  36 {}
  37
  38 /** Destructor. */
  39 FilterThunderbird::~FilterThunderbird(void)
  40 {
  41 }
  42
  43 /** Recursive import of Evolution's mboxes. */
  44 void FilterThunderbird::import(FilterInfo *info)
  45 {
  46     /**
  47      * We ask the user to choose Evolution's root directory.
  48      * This should be usually ~/.thunderbird/xxxx.default/Mail/Local Folders/
  49      */
  50     QString thunderDir = QDir::homePath() + "/.thunderbird/";
  51     QDir d( thunderDir );
  52     if ( !d.exists() ) {
  53         thunderDir = QDir::homePath();
  54     }
  55
  56     KFileDialog *kfd;
  57     kfd = new KFileDialog( thunderDir, "", 0 );
  58     kfd->setMode(KFile::Directory | KFile::LocalOnly);
  59     kfd->exec();
  60     mailDir  = kfd->selectedFile();
  61
  62     if (mailDir.isEmpty()) {
  63         info->alert(i18n("No directory selected."));
  64     }
  65     /**
  66      * If the user only select homedir no import needed because
  67      * there should be no files and we surely import wrong files.
  68      */
  69     else if ( mailDir == QDir::homePath() || mailDir == (QDir::homePath() + '/')) {
  70         info->addLog(i18n("No files found for import."));
  71     } else {
  72         info->setOverall(0);
  73
  74         /** Recursive import of the MailArchives */
  75         QDir dir(mailDir);
  76         const QStringList rootSubDirs = dir.entryList(QStringList("[^\\.]*"), QDir::Dirs, QDir::Name); // Removal of . and ..
  77         int currentDir = 1, numSubDirs = rootSubDirs.size();
  78         for(QStringList::ConstIterator filename = rootSubDirs.constBegin() ; filename != rootSubDirs.constEnd() ; ++filename, ++currentDir) {
  79             if(info->shouldTerminate()) break;
  80             importDirContents(info, dir.filePath(*filename), *filename, *filename);
  81             info->setOverall((int) ((float) currentDir / numSubDirs * 100));
  82         }
  83
  84         /** import last but not least all archives from the root-dir */
  85         QDir importDir (mailDir);
  86         const QStringList files = importDir.entryList(QStringList("[^\\.]*"), QDir::Files, QDir::Name);
  87         for ( QStringList::ConstIterator mailFile = files.constBegin(); mailFile != files.constEnd(); ++mailFile) {
  88             if(info->shouldTerminate()) break;
  89             QString temp_mailfile = *mailFile;
  90             if (temp_mailfile.endsWith(QLatin1String(".msf")) || temp_mailfile.endsWith(QLatin1String("msgFilterRules.dat"))) {}
  91             else {
  92                 info->addLog( i18n("Start import file %1...", temp_mailfile ) );
  93                 importMBox(info, mailDir + temp_mailfile , temp_mailfile, QString());
  94             }
  95         }
  96
  97         info->addLog( i18n("Finished importing emails from %1", mailDir ));
  98         if(count_duplicates > 0) {
  99             info->addLog( i18np("1 duplicate message not imported", "%1 duplicate messages not imported", count_duplicates));
 100         }
 101     }
 102     if (info->shouldTerminate()) info->addLog( i18n("Finished import, canceled by user."));
 103     info->setCurrent(100);
 104     info->setOverall(100);
 105     delete kfd;
 106 }
 107
 108 /**
 109  * Import of a directory contents.
 110  * @param info Information storage for the operation.
 111  * @param dirName The name of the directory to import.
 112  * @param KMailRootDir The directory's root directory in KMail's folder structure.
 113  * @param KMailSubDir The directory's direct ancestor in KMail's folder structure.
 114  */
 115 void FilterThunderbird::importDirContents(FilterInfo *info, const QString& dirName, const QString& KMailRootDir, const QString& KMailSubDir)
 116 {
 117     if(info->shouldTerminate()) return;
 118     /** Here Import all archives in the current dir */
 119     QDir dir(dirName);
 120
 121     QDir importDir (dirName);
 122     const QStringList files = importDir.entryList(QStringList("[^\\.]*"), QDir::Files, QDir::Name);
 123     for ( QStringList::ConstIterator mailFile = files.constBegin(); mailFile != files.constEnd(); ++mailFile) {
 124         if(info->shouldTerminate()) break;
 125         QString temp_mailfile = *mailFile;
 126         if (temp_mailfile.endsWith(QLatin1String(".msf")) || temp_mailfile.endsWith(QLatin1String("msgFilterRules.dat"))) {}
 127         else {
 128             info->addLog( i18n("Start import file %1...", temp_mailfile ) );
 129             importMBox(info, (dirName + '/' + temp_mailfile) , KMailRootDir, KMailSubDir);
 130         }
 131     }
 132
 133     /** If there are subfolders, we import them one by one */
 134     QDir subfolders(dirName);
 135     const QStringList subDirs = subfolders.entryList(QStringList("[^\\.]*"), QDir::Dirs, QDir::Name);
 136     for(QStringList::ConstIterator filename = subDirs.constBegin() ; filename != subDirs.constEnd() ; ++filename) {
 137         if(info->shouldTerminate()) break;
 138         QString kSubDir;
 139         if(!KMailSubDir.isNull()) {
 140             kSubDir = KMailSubDir + '/' + *filename;
 141         } else {
 142             kSubDir = *filename;
 143         }
 144         importDirContents(info, subfolders.filePath(*filename), KMailRootDir, kSubDir);
 145     }
 146 }
 147
 148 /**
 149  * Import of a MBox file.
 150  * @param info Information storage for the operation.
 151  * @param dirName The MBox's name.
 152  * @param KMailRootDir The directory's root directory in KMail's folder structure.
 153  * @param KMailSubDir The directory's equivalent in KMail's folder structure. *
 154  */
 155 void FilterThunderbird::importMBox(FilterInfo *info, const QString& mboxName, const QString& rootDir, const QString& targetDir)
 156 {
 157     QFile mbox(mboxName);
 158     bool first_msg = true;
 159     if (!mbox.open(QIODevice::ReadOnly)) {
 160         info->alert(i18n("Unable to open %1, skipping", mboxName));
 161     } else {
 162         QFileInfo filenameInfo(mboxName);
 163
 164         info->setCurrent(0);
 165         if( mboxName.length() > 20 ) {
 166             QString tmp_info = mboxName;
 167             tmp_info = tmp_info.replace( mailDir, "../" );
 168             if (tmp_info.contains(".sbd"))
 169                 tmp_info.remove(".sbd");
 170             info->setFrom( tmp_info );
 171         } else
 172             info->setFrom(mboxName);
 173         if(targetDir.contains(".sbd")) {
 174             QString tmp_info = targetDir;
 175             tmp_info.remove(".sbd");
 176             info->setTo(tmp_info);
 177         } else
 178             info->setTo(targetDir);
 179
 180         QByteArray input(MAX_LINE,'\0');
 181         long l = 0;
 182
 183         while (!mbox.atEnd()) {
 184             KTemporaryFile tmp;
 185             tmp.open();
 186             /** @todo check if the file is really a mbox, maybe search for 'from' string at start */
 187             /* comment by Danny:
 188             * Don't use QTextStream to read from mbox, better use QDataStream. QTextStream only
 189             * support Unicode/Latin1/Locale. So you lost information from emails with
 190             * charset!=Unicode/Latin1/Locale (e.g. KOI8-R) and Content-Transfer-Encoding != base64
 191             * (e.g. 8Bit). It also not help to convert the QTextStream to Unicode. By this you
 192             * get Unicode/UTF-email but KMail can't detect the correct charset.
 193             */
 194             QByteArray separate;
 195
 196             if(!first_msg)
 197                 tmp.write( input, l );
 198             l = mbox.readLine( input.data(),MAX_LINE); // read the first line, prevent "From "
 199             tmp.write( input, l );
 200
 201             while ( ! mbox.atEnd() &&  (l = mbox.readLine(input.data(),MAX_LINE)) && ((separate = input.data()).left(5) != "From ")) {
 202                 tmp.write( input, l );
 203             }
 204             tmp.flush();
 205             first_msg = false;
 206
 207             QString destFolder;
 208             QString _targetDir = targetDir;
 209             if(!targetDir.isNull()) {
 210                 if(_targetDir.contains(".sbd"))
 211                     _targetDir.remove(".sbd");
 212                 destFolder += "Thunderbird-Import/" + _targetDir + '/' + filenameInfo.completeBaseName();// mboxName;
 213             } else {
 214                 destFolder = "Thunderbird-Import/" + rootDir;
 215                 if(destFolder.contains(".sbd"))
 216                     destFolder.remove(".sbd");
 217             }
 218
 219             if(info->removeDupMsg)
 220                 addMessage( info, destFolder, tmp.fileName() );
 221             else
 222                 addMessage_fastImport( info, destFolder, tmp.fileName() );
 223
 224             int currentPercentage = (int) (((float) mbox.pos() / filenameInfo.size()) * 100);
 225             info->setCurrent(currentPercentage);
 226             if (info->shouldTerminate()) {
 227                 mbox.close();
 228                 return;
 229             }
 230         }
 231         mbox.close();
 232     }
 233 }
 234