kabc Library API Documentation

ldapclient.cpp

00001 /* kldapclient.cpp - LDAP access
00002  *      Copyright (C) 2002 Klarälvdalens Datakonsult AB
00003  *
00004  *      Author: Steffen Hansen <hansen@kde.org>
00005  *
00006  *      Ported to KABC by Daniel Molkentin <molkentin@kde.org>
00007  *
00008  * This file is free software; you can redistribute it and/or modify
00009  * it under the terms of the GNU General Public License as published by
00010  * the Free Software Foundation; either version 2 of the License, or
00011  * (at your option) any later version.
00012  *
00013  * This file is distributed in the hope that it will be useful,
00014  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00015  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00016  * GNU General Public License for more details.
00017  *
00018  * You should have received a copy of the GNU General Public License
00019  * along with this program; if not, write to the Free Software
00020  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
00021  */
00022 
00023 #include <kmdcodec.h>
00024 #include <qpixmap.h>
00025 #include <qimage.h>
00026 #include <qlabel.h>
00027 #include <qfile.h>
00028 
00029 #include <kprotocolinfo.h>
00030 #include <kconfig.h>
00031 #include <kapplication.h>
00032 
00033 #include <kdebug.h>
00034 
00035 #include "ldapclient.h"
00036 
00037 using namespace KABC;
00038 
00039 QString LdapObject::toString() const
00040 {
00041   QString result = QString::fromLatin1( "\ndn: %1\n" ).arg( dn );
00042   for ( LdapAttrMap::ConstIterator it = attrs.begin(); it != attrs.end(); ++it ) {
00043     QString attr = it.key();
00044     for ( LdapAttrValue::ConstIterator it2 = (*it).begin(); it2 != (*it).end(); ++it2 ) {
00045       if ( attr == "jpegPhoto" ) {
00046         QByteArray buf = *it2;
00047 #if 0
00048         qDebug( "Trying to load image from buf with size %d", (*it2).size() );
00049         QPixmap pix;
00050         pix.loadFromData( buf, "JPEG" );
00051         qDebug( "Image loaded successfully" );
00052         QLabel* l = new QLabel( 0 );
00053         QFile f( "tmp.jpg" );
00054         f.open( IO_WriteOnly );
00055         f.writeBlock( buf );
00056         f.close();
00057         //l->setPixmap( QPixmap("tmp.jpg") );
00058         //l->show();
00059 #endif
00060       } else {
00061         result += QString("%1: %2\n").arg( attr).arg( *it2 );
00062       }
00063     }
00064   }
00065 
00066   return result;  
00067 }
00068 
00069 void LdapObject::clear()
00070 {
00071   dn = QString::null;
00072   attrs.clear();
00073 }
00074 
00075 void LdapObject::assign( const LdapObject& that )
00076 {
00077   if ( &that != this ) {
00078     dn = that.dn;
00079     attrs = that.attrs;
00080   }    
00081 }
00082 
00083 LdapClient::LdapClient( QObject* parent, const char* name )
00084   : QObject( parent, name ), mJob( 0 ), mActive( false )
00085 {
00086 }
00087 
00088 LdapClient::~LdapClient()
00089 {
00090   cancelQuery();
00091 }
00092 
00093 void LdapClient::setHost( const QString& host )
00094 {
00095   mHost = host;
00096 }
00097 
00098 void LdapClient::setPort( const QString& port )
00099 {
00100   mPort = port;
00101 }
00102 
00103 void LdapClient::setBase( const QString& base )
00104 {
00105   mBase = base;
00106 }
00107 
00108 void LdapClient::setAttrs( const QStringList& attrs )
00109 {
00110   mAttrs = attrs;
00111 }
00112 
00113 void LdapClient::startQuery( const QString& filter )
00114 {
00115   cancelQuery();
00116   QString query;
00117   if ( mScope.isEmpty() )
00118     mScope = "sub";
00119 
00120   QString host = mHost;
00121   if ( !mPort.isEmpty() ) {
00122     host += ':';
00123     host += mPort;
00124   }
00125 
00126   if ( mAttrs.empty() ) {
00127     query = QString("ldap://%1/%2?*?%3?(%4)").arg( host ).arg( mBase ).arg( mScope ).arg( filter );
00128   } else {
00129     query = QString("ldap://%1/%2?%3?%4?(%5)").arg( host ).arg( mBase )
00130       .arg( mAttrs.join(",") ).arg( mScope ).arg( filter );
00131   }
00132   kdDebug(5700) << "Doing query" << query.latin1() << endl;
00133 
00134   startParseLDIF();
00135   mActive = true;
00136   mJob = KIO::get( KURL( query ), false, false );
00137   connect( mJob, SIGNAL( data( KIO::Job*, const QByteArray& ) ),
00138            this, SLOT( slotData( KIO::Job*, const QByteArray& ) ) );
00139   connect( mJob, SIGNAL( infoMessage( KIO::Job*, const QString& ) ),
00140            this, SLOT( slotInfoMessage( KIO::Job*, const QString& ) ) );
00141   connect( mJob, SIGNAL( result( KIO::Job* ) ),
00142            this, SLOT( slotDone() ) );
00143 }
00144 
00145 void LdapClient::cancelQuery()
00146 {
00147   if ( mJob ) {
00148     mJob->kill();
00149     mJob = 0;
00150   }
00151 
00152   mActive = false;
00153 }
00154 
00155 void LdapClient::slotData( KIO::Job*, const QByteArray& data )
00156 {
00157   QString str( data );
00158   kdDebug(5700) << "Got" << str.latin1() << endl;
00159   parseLDIF( data );
00160 }
00161 
00162 void LdapClient::slotInfoMessage( KIO::Job*, const QString & )
00163 {
00164   //qDebug("Job said \"%s\"", info.latin1());
00165 }
00166 
00167 void LdapClient::slotDone()
00168 {
00169   endParseLDIF();
00170   mActive = false;
00171 #if 0
00172   for ( QValueList<LdapObject>::Iterator it = mObjects.begin(); it != mObjects.end(); ++it ) {
00173     qDebug( (*it).toString().latin1() );
00174   }
00175 #endif
00176   int err = mJob->error();
00177   if ( err ) {
00178     emit error( KIO::buildErrorString( err, QString("%1:%2").arg( mHost ).arg( mPort ) ) );
00179   } 
00180   emit done();
00181 }
00182 
00183 void LdapClient::startParseLDIF()
00184 {
00185   mCurrentObject.clear();
00186   mLastAttrName  = 0;
00187   mLastAttrValue = 0;
00188   mIsBase64 = false;
00189 }
00190 
00191 void LdapClient::endParseLDIF()
00192 {
00193   if ( !mCurrentObject.dn.isEmpty() ) {
00194     if ( !mLastAttrName.isNull() && !mLastAttrValue.isNull() ) {
00195       if ( mIsBase64 ) {
00196         QByteArray out;
00197         KCodecs::base64Decode( mLastAttrValue, out );
00198         //qDebug("_lastAttrValue=\"%s\", output length %d", _lastAttrValue.data(), out.size());
00199         mCurrentObject.attrs[ mLastAttrName ].append( out );
00200       } else {
00201         mCurrentObject.attrs[ mLastAttrName ].append( mLastAttrValue );
00202       }
00203     }
00204     emit result( mCurrentObject );
00205   }
00206 }
00207 
00208 void LdapClient::parseLDIF( const QByteArray& data )
00209 {  
00210   //qDebug("%s", data.data());
00211   if ( data.isNull() || data.isEmpty() )
00212     return;
00213   mBuf += QCString( data ); // collect data in buffer
00214   int nl;
00215   while ( (nl = mBuf.find('\n')) != -1 ) {
00216     // Run through it line by line
00217     /* FIXME(steffen): This could be a problem
00218     * with "no newline at end of file" input
00219     */
00220     QCString line = mBuf.left( nl );
00221     if ( mBuf.length() > (unsigned int)(nl+1) )
00222       mBuf = mBuf.mid( nl+1 );
00223     else
00224       mBuf = "";
00225 
00226     if ( line.length() > 0 ) {
00227       if ( line[ 0 ] == '#' ) { // comment
00228         continue;
00229       } else if ( line[ 0 ] == ' ' || line[ 0 ] == '\t' ) { // continuation of last line
00230         line = line.stripWhiteSpace();
00231         //qDebug("Adding \"%s\"", line.data() );
00232         mLastAttrValue += line;
00233         continue;
00234       }
00235     } else
00236       continue;
00237 
00238     int colon = line.find(':');
00239     if ( colon != -1 ) { // Found new attribute 
00240       if ( mLastAttrName == "dn" ) { // New object, store the current
00241         if ( !mCurrentObject.dn.isNull() ) {
00242           emit result( mCurrentObject );
00243           mCurrentObject.clear();
00244         }
00245         mCurrentObject.dn = mLastAttrValue;
00246         mLastAttrValue = 0;
00247         mLastAttrName  = 0;
00248       } else if ( !mLastAttrName.isEmpty() ) {
00249         // Store current value, take care of decoding
00250         if ( mIsBase64 ) {
00251           QByteArray out;
00252           KCodecs::base64Decode( mLastAttrValue, out );
00253           //qDebug("_lastAttrValue=\"%s\", output length %d", _lastAttrValue.data(), out.size());
00254           mCurrentObject.attrs[ mLastAttrName ].append( out );
00255         } else {
00256           mCurrentObject.attrs[ mLastAttrName ].append( mLastAttrValue );
00257         }
00258       }
00259 
00260       mLastAttrName  = line.left( colon ).stripWhiteSpace();
00261       //qDebug("Found attr %s", _lastAttrName.data() );
00262       ++colon;
00263       if ( line[colon] == ':' ) {
00264         mIsBase64 = true;
00265         //qDebug("BASE64");
00266         ++colon;
00267       } else {
00268         //qDebug("UTF8");
00269         mIsBase64 = false;
00270       }
00271 
00272       mLastAttrValue = line.mid( colon ).stripWhiteSpace();
00273     }
00274   }
00275 }
00276 
00277 LdapSearch::LdapSearch()
00278     : mActiveClients( 0 ), mNoLDAPLookup( false )
00279 {
00280   if ( !KProtocolInfo::isKnownProtocol( KURL("ldap://localhost") ) ) {
00281     mNoLDAPLookup = true;
00282     return;
00283   }
00284 
00285   // stolen from KAddressBook
00286   KConfig config( "kaddressbookrc", true );
00287   config.setGroup( "LDAP" );
00288   int numHosts = config.readUnsignedNumEntry( "NumSelectedHosts"); 
00289   if ( !numHosts ) {
00290     mNoLDAPLookup = true;
00291     return;
00292   } else {
00293     for ( int j = 0; j < numHosts; j++ ) {
00294       LdapClient* ldapClient = new LdapClient( this );
00295     
00296       QString host =  config.readEntry( QString( "SelectedHost%1" ).arg( j ), "" ).stripWhiteSpace();
00297       if ( host != "" )
00298         ldapClient->setHost( host );
00299 
00300       QString port = QString::number( config.readUnsignedNumEntry( QString( "SelectedPort%1" ).arg( j ) ) );
00301       if ( !port.isEmpty() )
00302         ldapClient->setPort( port );
00303 
00304       QString base = config.readEntry( QString( "SelectedBase%1" ).arg( j ), "" ).stripWhiteSpace();
00305       if ( base != "" )
00306         ldapClient->setBase( base );
00307 
00308       QStringList attrs;
00309       attrs << "cn" << "mail" << "givenname" << "sn";
00310       ldapClient->setAttrs( attrs );
00311 
00312       connect( ldapClient, SIGNAL( result( const KABC::LdapObject& ) ),
00313                this, SLOT( slotLDAPResult( const KABC::LdapObject& ) ) );
00314       connect( ldapClient, SIGNAL( done() ),
00315                this, SLOT( slotLDAPDone() ) ); 
00316       connect( ldapClient, SIGNAL( error( const QString& ) ),
00317                this, SLOT( slotLDAPError( const QString& ) ) );
00318 
00319       mClients.append( ldapClient );     
00320     }
00321   }
00322   
00323   connect( &mDataTimer, SIGNAL( timeout() ), SLOT( slotDataTimer() ) );
00324 }
00325 
00326 void LdapSearch::startSearch( const QString& txt )
00327 {
00328   if ( mNoLDAPLookup )
00329     return;
00330 
00331   cancelSearch();
00332   int pos = txt.find( '\"' );
00333   if( pos >= 0 )
00334   {
00335     ++pos;
00336     int pos2 = txt.find( '\"', pos );
00337     if( pos2 >= 0 )
00338         mSearchText = txt.mid( pos , pos2 - pos );
00339     else
00340         mSearchText = txt.mid( pos );
00341   } else
00342     mSearchText = txt;
00343 
00344   QString filter = QString( "|(cn=%1*)(mail=%2*)(givenName=%3*)(sn=%4*)" )
00345       .arg( mSearchText ).arg( mSearchText ).arg( mSearchText ).arg( mSearchText );
00346 
00347   QValueList< LdapClient* >::Iterator it;
00348   for ( it = mClients.begin(); it != mClients.end(); ++it ) {
00349     (*it)->startQuery( filter );
00350     ++mActiveClients;
00351   }
00352 }
00353 
00354 void LdapSearch::cancelSearch()
00355 {
00356   QValueList< LdapClient* >::Iterator it;
00357   for ( it = mClients.begin(); it != mClients.end(); ++it )
00358     (*it)->cancelQuery();
00359 
00360   mActiveClients = 0;
00361   mResults.clear();
00362 }
00363 
00364 void LdapSearch::slotLDAPResult( const KABC::LdapObject& obj )
00365 {
00366   mResults.append( obj );
00367   if ( !mDataTimer.isActive() )
00368     mDataTimer.start( 500, true );
00369 }
00370 
00371 void LdapSearch::slotLDAPError( const QString& )
00372 {
00373   slotLDAPDone();
00374 }
00375 
00376 void LdapSearch::slotLDAPDone()
00377 {
00378   if ( --mActiveClients > 0 )
00379     return;
00380 
00381   finish();
00382 }
00383 
00384 void LdapSearch::slotDataTimer()
00385 {
00386   emit searchData( makeSearchData() );
00387 }
00388 
00389 void LdapSearch::finish()
00390 {
00391   mDataTimer.stop();
00392 
00393   emit searchData( makeSearchData() );
00394   emit searchDone();
00395 }
00396 
00397 QStringList LdapSearch::makeSearchData()
00398 {
00399   QStringList ret;
00400   QString search_text_upper = mSearchText.upper();
00401 
00402   QValueList< KABC::LdapObject >::ConstIterator it1;
00403   for ( it1 = mResults.begin(); it1 != mResults.end(); ++it1 ) {
00404     QString name, mail, givenname, sn;
00405 
00406     LdapAttrMap::ConstIterator it2;
00407     for ( it2 = (*it1).attrs.begin(); it2 != (*it1).attrs.end(); ++it2 ) {
00408       if ( it2.key() == "cn" )
00409         name = QString( "%1" ).arg( (*it2).first() ); // TODO loop?
00410       else if( it2.key() == "mail" ) 
00411         mail = QString( "%1" ).arg( (*it2).first() );
00412         else if( it2.key() == "givenName" )
00413         givenname = QString( "%1" ).arg( (*it2).first() );
00414         else if( it2.key() == "sn" )
00415         sn = QString( "%1" ).arg( (*it2).first() );
00416     }
00417 
00418     if( mail.isEmpty())
00419         ; // nothing, bad entry
00420     else if ( name.isEmpty() )
00421       ret.append( mail );
00422     else {
00423         kdDebug() << "<" << name << "><" << mail << ">" << endl;
00424       ret.append( QString( "%1 <%2>" ).arg( name ).arg( mail ) );
00425       // this sucks
00426       if ( givenname.upper().startsWith( search_text_upper ) )
00427         ret.append( QString( "$$%1$%2 <%3>" ).arg( givenname ).arg( name ).arg( mail ) );
00428       if ( sn.upper().startsWith( search_text_upper ) )
00429         ret.append( QString( "$$%1$%2 <%3>" ).arg( sn ).arg( name ).arg( mail ) );
00430     }
00431   }
00432 
00433   mResults.clear();
00434 
00435   return ret;
00436 }
00437 
00438 bool LdapSearch::isAvailable() const
00439 {
00440   return !mNoLDAPLookup;
00441 }
00442 
00443 #include "ldapclient.moc"
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