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kmail searchjob.cpp /* * Copyright (c) 2004 Carsten Burghardt <burghardt@kde.org> * * This program 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; version 2 of the License * * This program 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 "searchjob.h" #include "kmfolderimap.h" #include "imapaccountbase.h" #include "kmsearchpattern.h" #include "kmfolder.h" #include "imapjob.h" #include "kmmsgdict.h" #include <progressmanager.h> using KPIM::ProgressItem; using KPIM::ProgressManager; #include <kdebug.h> #include <kurl.h> #include <kio/scheduler.h> #include <kio/job.h> #include <kio/global.h> #include <klocale.h> #include <kmessagebox.h> #include <qstylesheet.h> namespace KMail { SearchJob::SearchJob( KMFolderImap* folder, ImapAccountBase* account, const KMSearchPattern* pattern, Q_UINT32 serNum ) : FolderJob( 0, tOther, (folder ? folder->folder() : 0) ), mFolder( folder ), mAccount( account ), mSearchPattern( pattern ), mSerNum( serNum ), mRemainingMsgs( 0 ), mProgress( 0 ), mUngetCurrentMsg( false ) { } SearchJob::~SearchJob() { } void SearchJob::execute() { if ( mSerNum == 0 ) { searchCompleteFolder(); } else { searchSingleMessage(); } } //----------------------------------------------------------------------------- void SearchJob::searchCompleteFolder() { // generate imap search command and save local search patterns QString searchString = searchStringFromPattern( mSearchPattern ); if ( searchString.isEmpty() ) // skip imap search and download the messages return slotSearchData( 0, QString::null ); // do the IMAP search KURL url = mAccount->getUrl(); url.setPath( mFolder->imapPath() + ";SECTION=" + searchString ); QByteArray packedArgs; QDataStream stream( packedArgs, IO_WriteOnly ); stream << (int) 'E' << url; KIO::SimpleJob *job = KIO::special( url, packedArgs, false ); KIO::Scheduler::assignJobToSlave(mAccount->slave(), job); connect( job, SIGNAL(infoMessage(KIO::Job*,const QString&)), SLOT(slotSearchData(KIO::Job*,const QString&)) ); connect( job, SIGNAL(result(KIO::Job *)), SLOT(slotSearchResult(KIO::Job *)) ); } //----------------------------------------------------------------------------- QString SearchJob::searchStringFromPattern( const KMSearchPattern* pattern ) { QStringList parts; // this is for the search pattern that can only be done local mLocalSearchPattern = new KMSearchPattern(); mLocalSearchPattern->setOp( pattern->op() ); for ( QPtrListIterator<KMSearchRule> it( *pattern ) ; it.current() ; ++it ) { // construct an imap search command bool accept = true; QString result; QString field = (*it)->field(); result = "CHARSET UTF-8 "; // check if the operation is supported if ( (*it)->function() == KMSearchRule::FuncContainsNot ) { result += "NOT "; } else if ( (*it)->function() == KMSearchRule::FuncIsGreater && (*it)->field() == "<size>" ) { result += "LARGER "; } else if ( (*it)->function() == KMSearchRule::FuncIsLess && (*it)->field() == "<size>" ) { result += "SMALLER "; } else if ( (*it)->function() != KMSearchRule::FuncContains ) { // can't be handled by imap accept = false; } // now see what should be searched if ( (*it)->field() == "<message>" ) { result += "TEXT \"" + (*it)->contents() + "\""; } else if ( (*it)->field() == "<body>" ) { result += "BODY \"" + (*it)->contents() + "\""; } else if ( (*it)->field() == "<recipients>" ) { result += " (OR HEADER To \"" + (*it)->contents() + "\" HEADER Cc \"" + (*it)->contents() + "\" HEADER Bcc \"" + (*it)->contents() + "\")"; } else if ( (*it)->field() == "<size>" ) { result += (*it)->contents(); } else if ( (*it)->field() == "<age in days>" || (*it)->field() == "<status>" || (*it)->field() == "<any header>" ) { accept = false; } else { result += "HEADER "+ field + " \"" + (*it)->contents() + "\""; } if ( result.isEmpty() ) { accept = false; } if ( accept ) { parts += result; } else { mLocalSearchPattern->append( *it ); } } QString search; if ( !parts.isEmpty() ) { if ( pattern->op() == KMSearchPattern::OpOr && parts.size() > 1 ) { search = "(OR " + parts.join(" ") + ")"; } else { // and's are simply joined search = parts.join(" "); } } kdDebug(5006) << k_funcinfo << search << ";localSearch=" << mLocalSearchPattern->asString() << endl; return search; } //----------------------------------------------------------------------------- void SearchJob::slotSearchData( KIO::Job* job, const QString& data ) { if ( job && job->error() ) { // error is handled in slotSearchResult return; } if ( mLocalSearchPattern->isEmpty() && data.isEmpty() ) { // no local search and the server found nothing QValueList<Q_UINT32> serNums; emit searchDone( serNums, mSearchPattern, true ); } else { // remember the uids the server found mImapSearchHits = QStringList::split( " ", data ); if ( canMapAllUIDs() ) { slotSearchFolder(); } else { // get the folder to make sure we have all messages connect ( mFolder, SIGNAL( folderComplete( KMFolderImap*, bool ) ), this, SLOT( slotSearchFolder()) ); mFolder->getFolder(); } } } //----------------------------------------------------------------------------- bool SearchJob::canMapAllUIDs() { for ( QStringList::Iterator it = mImapSearchHits.begin(); it != mImapSearchHits.end(); ++it ) { if ( mFolder->serNumForUID( (*it).toULong() ) == 0 ) return false; } return true; } //----------------------------------------------------------------------------- void SearchJob::slotSearchFolder() { disconnect ( mFolder, SIGNAL( folderComplete( KMFolderImap*, bool ) ), this, SLOT( slotSearchFolder()) ); if ( mLocalSearchPattern->isEmpty() ) { // pure imap search - now get the serial number for the UIDs QValueList<Q_UINT32> serNums; for ( QStringList::Iterator it = mImapSearchHits.begin(); it != mImapSearchHits.end(); ++it ) { ulong serNum = mFolder->serNumForUID( (*it).toULong() ); // we need to check that the local folder does contain a message for this UID. // scenario: server responds with a list of UIDs. While the search was running, filtering or bad juju moved a message locally // serNumForUID will happily return 0 for the missing message, and KMFolderSearch::addSerNum() will fail its assertion. if ( serNum != 0 ) serNums.append( serNum ); } emit searchDone( serNums, mSearchPattern, true ); } else { // we have search patterns that can not be handled by the server mRemainingMsgs = mFolder->count(); if ( mRemainingMsgs == 0 ) { emit searchDone( mSearchSerNums, mSearchPattern, true ); return; } // Let's see if all we need is status, that we can do locally. Optimization. bool needToDownload = needsDownload(); if ( needToDownload ) { // so we need to download all messages and check QString question = i18n("To execute your search all messages of the folder %1 " "have to be downloaded from the server. This may take some time. " "Do you want to continue your search?").arg( mFolder->label() ); if ( KMessageBox::warningContinueCancel( 0, question, i18n("Continue Search"), i18n("&Search"), "continuedownloadingforsearch" ) != KMessageBox::Continue ) { QValueList<Q_UINT32> serNums; emit searchDone( serNums, mSearchPattern, true ); return; } } unsigned int numMsgs = mRemainingMsgs; // progress mProgress = ProgressManager::createProgressItem( "ImapSearchDownload" + ProgressManager::getUniqueID(), i18n("Downloading emails from IMAP server"), i18n( "URL: %1" ).arg( QStyleSheet::escape( mFolder->folder()->prettyURL() ) ), true, mAccount->useSSL() || mAccount->useTLS() ); mProgress->setTotalItems( numMsgs ); connect ( mProgress, SIGNAL( progressItemCanceled( KPIM::ProgressItem*)), this, SLOT( slotAbortSearch( KPIM::ProgressItem* ) ) ); for ( unsigned int i = 0; i < numMsgs ; ++i ) { KMMessage * msg = mFolder->getMsg( i ); if ( needToDownload ) { ImapJob *job = new ImapJob( msg ); job->setParentFolder( mFolder ); job->setParentProgressItem( mProgress ); connect( job, SIGNAL(messageRetrieved(KMMessage*)), this, SLOT(slotSearchMessageArrived(KMMessage*)) ); job->start(); } else { slotSearchMessageArrived( msg ); } } } } //----------------------------------------------------------------------------- void SearchJob::slotSearchMessageArrived( KMMessage* msg ) { if ( mProgress ) { mProgress->incCompletedItems(); mProgress->updateProgress(); } --mRemainingMsgs; bool matches = false; if ( msg ) { // messageRetrieved(0) is always possible if ( mLocalSearchPattern->op() == KMSearchPattern::OpAnd ) { // imap and local search have to match if ( mLocalSearchPattern->matches( msg ) && ( mImapSearchHits.isEmpty() || mImapSearchHits.find( QString::number(msg->UID() ) ) != mImapSearchHits.end() ) ) { Q_UINT32 serNum = msg->getMsgSerNum(); mSearchSerNums.append( serNum ); matches = true; } } else if ( mLocalSearchPattern->op() == KMSearchPattern::OpOr ) { // imap or local search have to match if ( mLocalSearchPattern->matches( msg ) || mImapSearchHits.find( QString::number(msg->UID()) ) != mImapSearchHits.end() ) { Q_UINT32 serNum = msg->getMsgSerNum(); mSearchSerNums.append( serNum ); matches = true; } } int idx = -1; KMFolder * p = 0; KMMsgDict::instance()->getLocation( msg, &p, &idx ); if ( idx != -1 && mUngetCurrentMsg ) mFolder->unGetMsg( idx ); } if ( mSerNum > 0 ) { emit searchDone( mSerNum, mSearchPattern, matches ); } else { bool complete = ( mRemainingMsgs == 0 ); if ( complete && mProgress ) { mProgress->setComplete(); mProgress = 0; } if ( matches || complete ) { emit searchDone( mSearchSerNums, mSearchPattern, complete ); mSearchSerNums.clear(); } } } //----------------------------------------------------------------------------- void SearchJob::slotSearchResult( KIO::Job *job ) { if ( job->error() ) { mAccount->handleJobError( job, i18n("Error while searching.") ); if ( mSerNum == 0 ) { // folder QValueList<Q_UINT32> serNums; emit searchDone( serNums, mSearchPattern, true ); } else { // message emit searchDone( mSerNum, mSearchPattern, false ); } } } //----------------------------------------------------------------------------- void SearchJob::searchSingleMessage() { QString searchString = searchStringFromPattern( mSearchPattern ); if ( searchString.isEmpty() ) { // no imap search slotSearchDataSingleMessage( 0, QString::null ); } else { // imap search int idx = -1; KMFolder *aFolder = 0; KMMsgDict::instance()->getLocation( mSerNum, &aFolder, &idx ); assert(aFolder && (idx != -1)); KMMsgBase *mb = mFolder->getMsgBase( idx ); // only search for that UID searchString += " UID " + QString::number( mb->UID() ); KURL url = mAccount->getUrl(); url.setPath( mFolder->imapPath() + ";SECTION=" + searchString ); QByteArray packedArgs; QDataStream stream( packedArgs, IO_WriteOnly ); stream << (int) 'E' << url; KIO::SimpleJob *job = KIO::special( url, packedArgs, false ); KIO::Scheduler::assignJobToSlave(mAccount->slave(), job); connect( job, SIGNAL(infoMessage(KIO::Job*,const QString&)), SLOT(slotSearchDataSingleMessage(KIO::Job*,const QString&)) ); connect( job, SIGNAL(result(KIO::Job *)), SLOT(slotSearchResult(KIO::Job *)) ); } } //----------------------------------------------------------------------------- void SearchJob::slotSearchDataSingleMessage( KIO::Job* job, const QString& data ) { if ( job && job->error() ) { // error is handled in slotSearchResult return; } if ( mLocalSearchPattern->isEmpty() ) { // we are done emit searchDone( mSerNum, mSearchPattern, !data.isEmpty() ); return; } // remember what the server found mImapSearchHits = QStringList::split( " ", data ); // add the local search int idx = -1; KMFolder *aFolder = 0; KMMsgDict::instance()->getLocation( mSerNum, &aFolder, &idx ); assert(aFolder && (idx != -1)); mUngetCurrentMsg = !mFolder->getMsgBase( idx )->isMessage(); KMMessage * msg = mFolder->getMsg( idx ); if ( needsDownload() ) { ImapJob *job = new ImapJob( msg ); job->setParentFolder( mFolder ); connect( job, SIGNAL(messageRetrieved(KMMessage*)), this, SLOT(slotSearchMessageArrived(KMMessage*)) ); job->start(); } else { slotSearchMessageArrived( msg ); } } //----------------------------------------------------------------------------- void SearchJob::slotAbortSearch( KPIM::ProgressItem* item ) { if ( item ) item->setComplete(); mAccount->killAllJobs(); QValueList<Q_UINT32> serNums; emit searchDone( serNums, mSearchPattern, true ); } //----------------------------------------------------------------------------- bool SearchJob::needsDownload() { for ( QPtrListIterator<KMSearchRule> it( *mLocalSearchPattern ) ; it.current() ; ++it ) { if ( (*it)->field() != "<status>" ) { return true; } } return false; } } // namespace KMail #include "searchjob.moc"

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