Tille ask Diana how she was able to trigger that bug?

I nominate her for the bug finding queen 2002.
Ok I just fixed two possible crashes with the risk of losing
data.

1 files changed, 17 insertions, 8 deletions

diff --git a/core/pim/addressbook/abtable.cpp b/core/pim/addressbook/abtable.cpp
index e9e6a0b..3fa1a7c 100644
--- a/core/pim/addressbook/abtable.cpp
+++ b/core/pim/addressbook/abtable.cpp
@@ -437,502 +437,511 @@ QString AbTable::findContactContact( const Contact &entry )
             value = entry.notes();
             break;
         }
         if ( !value.isEmpty() )
             break;
     }
     return value;
 }
 
 void AbTable::addEntry( const Contact &newCnt )
 {
     int row = numRows();
     setNumRows( row + 1 );
     updateJournal( newCnt, Contact::ACTION_ADD );
     insertIntoTable( newCnt, row );
     setCurrentCell( row, 0 );
     updateVisible();
 }
 
 void AbTable::resizeRows( int size ) {
 /*
         if (numRows()) {
                 for (int i = 0; i < numRows(); i++) {
                         setRowHeight( i, size );
                 }
         }*/
         updateVisible();
 }
 
 void AbTable::updateJournal( const Contact &cnt,
                              Contact::journal_action action, int row )
 {
     QFile f( journalFileName() );
     if ( !f.open(IO_WriteOnly|IO_Append) )
          return;
     QString buf;
     QCString str;
     buf = "<Contact ";
     cnt.save( buf );
     buf += " action=\"" + QString::number( (int)action ) + "\" ";
     if ( action == Contact::ACTION_REMOVE || action == Contact::ACTION_REPLACE)
         buf += " actionrow=\"" + QString::number(row) + "\" ";
     buf += "/>\n";
     QCString cstr = buf.utf8();
     f.writeBlock( cstr.data(), cstr.length() );
     QCopEnvelope( "QPE/PIM", "addressbookUpdated()" );
 }
 
 bool AbTable::save( const QString &fn )
 {
 //     QTime t;
 //     t.start();
 
     QString strNewFile = fn + ".new";
     QFile f( strNewFile );
     if ( !f.open( IO_WriteOnly|IO_Raw ) )
         return false;
 
     int total_written;
     QString out;
     out = "<?xml version=\"1.0\" encoding=\"UTF-8\"?><!DOCTYPE Addressbook ><AddressBook>\n"
           " <Groups>\n"
           " </Groups>\n"
           " <Contacts>\n";
     QMapIterator<AbTableItem*, Contact> it;
     for ( it = contactList.begin(); it != contactList.end(); ++it ) {
         out += "<Contact ";
         it.data().save( out );
         out += "/>\n";
         QCString cstr = out.utf8();
         total_written = f.writeBlock( cstr.data(), cstr.length() );
         if ( total_written != int(cstr.length()) ) {
             f.close();
             QFile::remove( strNewFile );
             return false;
         }
         out = "";
     }
     out += " </Contacts>\n</AddressBook>\n";
 
     QCString cstr = out.utf8();
     total_written = f.writeBlock( cstr.data(), cstr.length() );
     if ( total_written != int(cstr.length()) ) {
         f.close();
          QFile::remove( strNewFile );
          return false;
     }
     f.close();
 
 //     qDebug("saving: %d", t.elapsed() );
 
     // move the file over, I'm just going to use the system call
     // because, I don't feel like using QDir.
     if ( ::rename( strNewFile.latin1(), fn.latin1() ) < 0 ) {
         qWarning( "problem renaming file %s to %s, errno: %d",
                   strNewFile.latin1(), fn.latin1(), errno );
         // remove the tmp file...
         QFile::remove( strNewFile );
     }
     // remove the journal...
     QFile::remove( journalFileName() );
     return true;
 }
 
 void AbTable::load( const QString &fn )
 {
     setSorting( false );
     loadFile( fn, false );
     // merge in the journal
     if ( QFile::exists( journalFileName() ) ) {
         loadFile( journalFileName(), true );
         save( fn );
     }
     setSorting( true );
     resort();
 }
 
 void AbTable::loadFile( const QString &strFile, bool journalFile )
 {
 //     QTime t;
 //     t.start();
     QFile f( strFile );
     if ( !f.open(IO_ReadOnly) )
         return;
     QList<Contact> list;
     list.setAutoDelete( TRUE );
     QByteArray ba = f.readAll();
     f.close();
+   if (ba.isEmpty() )
+       return;
     char *uc = ba.data();//(QChar *)data.unicode();
     int len = ba.size();//data.length();
     bool foundAction = false;
     Contact::journal_action action;
     bool foundKey = false;
     int journalKey = 0;
 
     const int JOURNALACTION = Qtopia::Notes + 1;
     const int JOURNALROW = JOURNALACTION + 1;
 
     // **********************************
     // CHANGE THE SIZE OF THE DICT IF YOU ADD ANY MORE FIELDS!!!!
     // **********************************
     QAsciiDict<int> dict( 47 );
     dict.setAutoDelete( TRUE );
     dict.insert( "Uid", new int(Qtopia::AddressUid) );
     dict.insert( "Title", new int(Qtopia::Title) );
     dict.insert( "FirstName", new int(Qtopia::FirstName) );
     dict.insert( "MiddleName", new int(Qtopia::MiddleName) );
     dict.insert( "LastName", new int(Qtopia::LastName) );
     dict.insert( "Suffix", new int(Qtopia::Suffix) );
     dict.insert( "FileAs", new int(Qtopia::FileAs) );
     dict.insert( "Categories", new int(Qtopia::AddressCategory) );
     dict.insert( "DefaultEmail", new int(Qtopia::DefaultEmail) );
     dict.insert( "Emails", new int(Qtopia::Emails) );
     dict.insert( "HomeStreet", new int(Qtopia::HomeStreet) );
     dict.insert( "HomeCity", new int(Qtopia::HomeCity) );
     dict.insert( "HomeState", new int(Qtopia::HomeState) );
     dict.insert( "HomeZip", new int(Qtopia::HomeZip) );
     dict.insert( "HomeCountry", new int(Qtopia::HomeCountry) );
     dict.insert( "HomePhone", new int(Qtopia::HomePhone) );
     dict.insert( "HomeFax", new int(Qtopia::HomeFax) );
     dict.insert( "HomeMobile", new int(Qtopia::HomeMobile) );
     dict.insert( "HomeWebPage", new int(Qtopia::HomeWebPage) );
     dict.insert( "Company", new int(Qtopia::Company) );
     dict.insert( "BusinessStreet", new int(Qtopia::BusinessStreet) );
     dict.insert( "BusinessCity", new int(Qtopia::BusinessCity) );
     dict.insert( "BusinessState", new int(Qtopia::BusinessState) );
     dict.insert( "BusinessZip", new int(Qtopia::BusinessZip) );
     dict.insert( "BusinessCountry", new int(Qtopia::BusinessCountry) );
     dict.insert( "BusinessWebPage", new int(Qtopia::BusinessWebPage) );
     dict.insert( "JobTitle", new int(Qtopia::JobTitle) );
     dict.insert( "Department", new int(Qtopia::Department) );
     dict.insert( "Office", new int(Qtopia::Office) );
     dict.insert( "BusinessPhone", new int(Qtopia::BusinessPhone) );
     dict.insert( "BusinessFax", new int(Qtopia::BusinessFax) );
     dict.insert( "BusinessMobile", new int(Qtopia::BusinessMobile) );
     dict.insert( "BusinessPager", new int(Qtopia::BusinessPager) );
     dict.insert( "Profession", new int(Qtopia::Profession) );
     dict.insert( "Assistant", new int(Qtopia::Assistant) );
     dict.insert( "Manager", new int(Qtopia::Manager) );
     dict.insert( "Spouse", new int(Qtopia::Spouse) );
     dict.insert( "Children", new int(Qtopia::Children) );
     dict.insert( "Gender", new int(Qtopia::Gender) );
     dict.insert( "Birthday", new int(Qtopia::Birthday) );
     dict.insert( "Anniversary", new int(Qtopia::Anniversary) );
     dict.insert( "Nickname", new int(Qtopia::Nickname) );
     dict.insert( "Notes", new int(Qtopia::Notes) );
     dict.insert( "action", new int(JOURNALACTION) );
     dict.insert( "actionrow", new int(JOURNALROW) );
 
     int i = 0;
     int num = 0;
     char *point;
     while ( (point = strstr( uc+i, "<Contact " ) ) != NULL ) {
         i = point - uc;
         // if we are reading the standard file, we just need to
         // insert info, so just say we'll do an insert...
         action = Contact::ACTION_ADD;
         // new Contact
         Contact *cnt = new Contact;
         i += 9;
         while ( 1 ) {
             while ( i < len && (uc[i] == ' ' || uc[i] == '\n' || uc[i] == '\r') )
                 i++;
             if ( i >= len-2 || (uc[i] == '/' && uc[i+1] == '>') )
                 break;
             // we have another attribute read it.
             int j = i;
             while ( j < len && uc[j] != '=' )
                 j++;
             char *attr = uc+i;
             uc[j] = '\0';
             //qDebug("attr=%s", attr.latin1() );
             i = ++j; // skip =
             while ( i < len && uc[i] != '"' )
                 i++;
             j = ++i;
             bool haveEnt = FALSE;
             bool haveUtf = FALSE;
             while ( j < len && uc[j] != '"' ) {
                 if ( uc[j] == '&' )
                     haveEnt = TRUE;
                 if ( ((unsigned char)uc[j]) > 0x7f )
                     haveUtf = TRUE;
                 j++;
             }
 
             if ( j == i ) {
                 // empty value
                 i = j + 1;
                 continue;
             }
 
             QString value = haveUtf ? QString::fromUtf8( uc+i, j-i )
                             : QString::fromLatin1( uc+i, j-i );
             if ( haveEnt )
                 value = Qtopia::plainString( value );
             i = j + 1;
 
             int *find = dict[ attr ];
             if ( !find ) {
                 cnt->setCustomField(attr, value);
                 continue;
             }
 #if 1
             switch( *find ) {
             case Qtopia::AddressUid:
                 cnt->setUid( value.toInt() );
                 break;
             case Qtopia::AddressCategory:
                 cnt->setCategories( Qtopia::Record::idsFromString( value ));
                 break;
             case JOURNALACTION:
                 action = Contact::journal_action(value.toInt());
                 break;
             case JOURNALROW:
                 journalKey = value.toInt();
                 break;
 
             default:
                 cnt->insert( *find, value );
                 break;
             }
 #endif
         }
 
         // sadly we can't delay adding of items from the journal to get
         // the proper effect, but then, the journal should _never_ be
         // that huge, and recovering from a crash is not necessarily
         // a *fast* thing.
         switch ( action ) {
         case Contact::ACTION_ADD:
             if ( journalFile ) {
                 int myrows = numRows();
                 setNumRows( myrows + 1 );
                 insertIntoTable( *cnt, myrows );
                 delete cnt;
             }
             else
                 list.append( cnt );
             break;
         case Contact::ACTION_REMOVE:
             // yup, we don't use the entry to remove the object...
             journalFreeRemove( journalKey  );
             delete cnt;
             break;
         case Contact::ACTION_REPLACE:
             journalFreeReplace( *cnt, journalKey );
             delete cnt;
             break;
         default:
             break;
         }
         num++;
         foundAction = false;
         foundKey = false;
         // if ( num % 100 == 0 ) {
         //     qDebug("loading file, num=%d, t=%d", num, t.elapsed() );
         // }
     }
     if ( list.count() > 0 ) {
         internalAddEntries( list );
     }
 //    qDebug("done loading %d, t=%d", num, t.elapsed() );
 
 }
 
 void AbTable::realignTable( int row )
 {
     QTableItem *ti1,
         *ti2;
     int totalRows = numRows();
     for ( int curr = row; curr < totalRows - 1; curr++ ) {
         // the same info from the todo list still applies, but I
         // don't think it is _too_ bad.
         ti1 = item( curr + 1, 0 );
         ti2 = item( curr + 1, 1 );
         takeItem( ti1 );
         takeItem( ti2 );
         setItem( curr, 0, ti1 );
         setItem( curr, 1, ti2 );
     }
     setNumRows( totalRows - 1 );
     resort();
 }
 
 void AbTable::insertIntoTable( const Contact &cnt, int row )
 {
     QString strName,
             strContact;
 
     strName = findContactName( cnt );
     strContact = findContactContact( cnt );
 
     AbTableItem *ati;
     ati = new AbTableItem( this, QTableItem::Never, strName, strContact);
     contactList.insert( ati, cnt );
     setItem( row, 0, ati );
     ati = new AbTableItem( this, QTableItem::Never, strContact, strName);
     setItem( row, 1, ati );
 
     //### cannot do this; table only has two columns at this point
     //    setItem( row, 2, new AbPickItem( this ) );
 
     // resort at some point?
 }
 
 void AbTable::internalAddEntries( QList<Contact> &list )
 {
     setUpdatesEnabled( FALSE );
     setNumRows( list.count() );
     int row = 0;
     Contact *it;
     for ( it = list.first(); it; it = list.next() )
         insertIntoTable( *it, row++ );
     resort();
     setUpdatesEnabled( TRUE );
 }
 
 
 void AbTable::journalFreeReplace( const Contact &cnt, int row )
 {
     QString strName,
         strContact;
-    AbTableItem *ati;
+    AbTableItem *ati = 0l;
 
     strName = findContactName( cnt );
     strContact = findContactContact( cnt );
     ati = static_cast<AbTableItem*>(item(row, 0));
-    contactList.remove( ati );
-    ati->setItem( strName, strContact );
-    contactList.insert( ati, cnt );
-
-    ati = static_cast<AbTableItem*>(item(row, 1));
-    ati->setItem( strContact, strName );
+    if ( ati != 0 ) {
+        contactList.remove( ati );
+        ati->setItem( strName, strContact );
+        contactList.insert( ati, cnt );
+
+        ati = static_cast<AbTableItem*>(item(row, 1));
+        ati->setItem( strContact, strName );
+    }else{
+        int myrows = numRows();
+        setNumRows( myrows + 1 );
+        insertIntoTable( cnt, myrows );
+        // gets deleted when returning
+    }
 }
 
 void AbTable::journalFreeRemove( int row )
 {
     AbTableItem *ati;
     ati = static_cast<AbTableItem*>(item(row, 0));
     if ( !ati )
         return;
     contactList.remove( ati );
     realignTable( row );
 }
 
 #if QT_VERSION <= 230
 #ifndef SINGLE_APP
 void QTable::paintEmptyArea( QPainter *p, int cx, int cy, int cw, int ch )
 {
     // Region of the rect we should draw
     QRegion reg( QRect( cx, cy, cw, ch ) );
     // Subtract the table from it
     reg = reg.subtract( QRect( QPoint( 0, 0 ), tableSize() ) );
     // And draw the rectangles (transformed as needed)
     QArray<QRect> r = reg.rects();
     for (unsigned int i=0; i<r.count(); i++)
         p->fillRect( r[i], colorGroup().brush( QColorGroup::Base ) );
 }
 #endif
 #endif
 
 
 // int AbTable::rowHeight( int ) const
 // {
 //     return 18;
 // }
 
 // int AbTable::rowPos( int row ) const
 // {
 //     return 18*row;
 // }
 
 // int AbTable::rowAt( int pos ) const
 // {
 //     return QMIN( pos/18, numRows()-1 );
 // }
 
 void AbTable::slotDoFind( const QString &findString, bool caseSensitive,
                           bool backwards, int category )
 {
     if ( currFindRow < -1 )
         currFindRow = currentRow() - 1;
     clearSelection( TRUE );
     int rows,
         row;
     AbTableItem *ati;
     QRegExp r( findString );
     r.setCaseSensitive( caseSensitive );
     rows = numRows();
     static bool wrapAround = true;
 
     if ( !backwards ) {
         for ( row = currFindRow + 1; row < rows; row++ ) {
             ati = static_cast<AbTableItem*>( item(row, 0) );
             if ( contactCompare( contactList[ati], r, category ) )
                 break;
 
         }
     } else {
         for ( row = currFindRow - 1; row > -1; row-- ) {
             ati = static_cast<AbTableItem*>( item(row, 0) );
             if ( contactCompare( contactList[ati], r, category ) )
                 break;
         }
     }
     if ( row >= rows || row < 0 ) {
         if ( row < 0 )
             currFindRow = rows;
         else
             currFindRow = -1;
 
         if ( wrapAround )
             emit signalWrapAround();
         else
             emit signalNotFound();
 
         wrapAround = !wrapAround;
     } else {
         currFindRow = row;
         QTableSelection foundSelection;
         foundSelection.init( currFindRow, 0 );
         foundSelection.expandTo( currFindRow, numCols() - 1 );
         addSelection( foundSelection );
         setCurrentCell( currFindRow, numCols() - 1 );
         wrapAround = true;
     }
 }
 
 static bool contactCompare( const Contact &cnt, const QRegExp &r, int category )
 {
     bool returnMe;
     QArray<int> cats;
     cats = cnt.categories();
 
     returnMe = false;
     if ( (category == -1 && cats.count() == 0) || category == -2 )
         returnMe = cnt.match( r );
     else {
         int i;
         for ( i = 0; i < int(cats.count()); i++ ) {
             if ( cats[i] == category ) {
                 returnMe = cnt.match( r );
                 break;
             }
         }
     }
     return returnMe;
 }
 
 void AbTable::fitColumns()
 {
     int contentsWidth = visibleWidth();
     int n = numCols();
     int pw = n == 3 ? columnWidth(2) : 0;
     setColumnWidth( 0, contentsWidth - contentsWidth / 2 );
     setColumnWidth( 1, contentsWidth / 2 - pw );
 }
 
 void AbTable::show()
 {
     fitColumns();
@@ -958,244 +967,244 @@ void AbTable::itemClicked(int,int col)
 {
     if ( col == 2 ) {
         return;
     } else {
         emit details();
     }
 }
 
 QStringList AbTable::choiceNames() const
 {
     return choicenames;
 }
 
 void AbTable::setChoiceSelection(int /*index*/, const QStringList& /*list*/)
 {
     /* ######
 
         QString selname = choicenames.at(index);
         for (each row) {
             Contact *c = contactForRow(row);
             if ( list.contains(c->email) ) {
                 list.remove(c->email);
                 setText(row, 2, selname);
             }
         }
         for (remaining list items) {
             Contact *c = new contact(item);
             setText(newrow, 2, selname);
         }
 
     */
 }
 
 QStringList AbTable::choiceSelection(int /*index*/) const
 {
     QStringList r;
     /* ######
 
         QString selname = choicenames.at(index);
         for (each row) {
             Contact *c = contactForRow(row);
             if ( text(row,2) == selname ) {
                 r.append(c->email);
             }
         }
 
     */
     return r;
 }
 
 void AbTable::setShowCategory( const QString &c )
 {
     showCat = c;
     updateVisible();
 }
 
 void AbTable::setShowByLetter( char c )
 {
     showChar = tolower(c);
     updateVisible();
 }
 
 QString AbTable::showCategory() const
 {
     return showCat;
 }
 
 
 QStringList AbTable::categories()
 {
     mCat.load( categoryFileName() );
     QStringList categoryList = mCat.labels( "Contacts" );
     return categoryList;
 }
 
 void AbTable::updateVisible()
 {
     int visible,
         totalRows,
         id,
         totalCats,
         it,
         row;
     bool hide;
     AbTableItem *ati;
     Contact *cnt;
     QString fileAsName;
     QString tmpStr;
     visible = 0;
 
     setPaintingEnabled( FALSE );
 
     totalRows = numRows();
     id = mCat.id( "Contacts", showCat );
     QArray<int> cats;
     for ( row = 0; row < totalRows; row++ ) {
         ati = static_cast<AbTableItem*>( item(row, 0) );
         cnt = &contactList[ati];
         cats = cnt->categories();
         fileAsName = cnt->fileAs();
         hide = false;
         if ( !showCat.isEmpty() ) {
             if ( showCat == tr( "Unfiled" ) ) {
                 if ( cats.count() > 0 )
                     hide = true;
             } else {
                 // do some comparing
                 if ( !hide ) {
                     hide = true;
                     totalCats = int(cats.count());
                     for ( it = 0; it < totalCats; it++ ) {
                         if ( cats[it] == id ) {
                             hide = false;
                             break;
                         }
                     }
                 }
             }
         }
         if ( showChar != '\0' ) {
             tmpStr = fileAsName.left(1);
             tmpStr = tmpStr.lower();
             if ( tmpStr != QString(QChar(showChar)) && showChar != '#' ) {
                     hide = true;
             }
             if ( showChar == '#' ) {
                     if (tmpStr == "a")
                             hide = true;
-                    
+
                     if (tmpStr == "b")
                             hide = true;
 
                     if (tmpStr == "c")
                             hide = true;
 
                     if (tmpStr == "d")
                             hide = true;
 
                     if (tmpStr == "e")
                             hide = true;
 
                     if (tmpStr == "f")
                             hide = true;
 
                     if (tmpStr == "g")
                             hide = true;
 
                     if (tmpStr == "h")
                             hide = true;
 
                     if (tmpStr == "i")
                             hide = true;
 
                     if (tmpStr == "j")
                             hide = true;
 
                     if (tmpStr == "k")
                             hide = true;
 
                     if (tmpStr == "l")
                             hide = true;
 
                     if (tmpStr == "m")
                             hide = true;
 
                     if (tmpStr == "n")
                             hide = true;
 
                     if (tmpStr == "o")
                             hide = true;
 
                     if (tmpStr == "p")
                             hide = true;
 
                     if (tmpStr == "q")
                             hide = true;
 
                     if (tmpStr == "r")
                             hide = true;
 
                     if (tmpStr == "s")
                             hide = true;
 
                     if (tmpStr == "t")
                             hide = true;
 
                     if (tmpStr == "u")
                             hide = true;
 
                     if (tmpStr == "v")
                             hide = true;
 
                     if (tmpStr == "w")
                             hide = true;
 
                     if (tmpStr == "x")
                             hide = true;
 
                     if (tmpStr == "y")
                             hide = true;
 
                     if (tmpStr == "z")
                             hide = true;
             }
 
         }
         if ( hide ) {
             if ( currentRow() == row )
                 setCurrentCell( -1, 0 );
             if ( rowHeight(row) > 0 )
                 hideRow( row );
         } else {
             if ( rowHeight(row) == 0 ) {
                 showRow( row );
                 adjustRow( row );
             }
             visible++;
         }
     }
     if ( !visible )
         setCurrentCell( -1, 0 );
 
     setPaintingEnabled( TRUE );
 }
 
 
 void AbTable::setPaintingEnabled( bool e )
 {
     if ( e != enablePainting ) {
         if ( !enablePainting ) {
             enablePainting = true;
             rowHeightChanged( 0 );
             viewport()->update();
         } else {
             enablePainting = false;
         }
     }
 }
 
 void AbTable::rowHeightChanged( int row )
 {
     if ( enablePainting )
         QTable::rowHeightChanged( row );
 }