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396 lines
9.2 KiB
396 lines
9.2 KiB
/*
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This file is part of libkabc.
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Copyright (c) 2001,2003 Cornelius Schumacher <schumacher@kde.org>
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Copyright (c) 2006 Tom Abers <tomalbers@kde.nl>
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public
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License as published by the Free Software Foundation; either
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version 2 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public License
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along with this library; see the file COPYING.LIB. If not, write to
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the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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Boston, MA 02110-1301, USA.
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*/
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#include <signal.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <unistd.h>
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#include <tqfile.h>
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#include <tqfileinfo.h>
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#include <tqtimer.h>
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#include <kapplication.h>
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#include <tdeconfig.h>
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#include <kdebug.h>
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#include <tdeio/scheduler.h>
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#include <klocale.h>
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#include <ksavefile.h>
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#include <kstandarddirs.h>
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#include "formatfactory.h"
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#include "resourcefileconfig.h"
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#include "stdaddressbook.h"
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#include "lock.h"
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#include "resourcefile.h"
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using namespace KABC;
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ResourceFile::ResourceFile( const TDEConfig *config )
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: Resource( config ), mFormat( 0 ),
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mAsynchronous( false )
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{
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TQString fileName, formatName;
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if ( config ) {
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fileName = config->readPathEntry( "FileName", StdAddressBook::fileName() );
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formatName = config->readEntry( "FileFormat", "vcard" );
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} else {
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fileName = StdAddressBook::fileName();
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formatName = "vcard";
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}
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init( fileName, formatName );
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}
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ResourceFile::ResourceFile( const TQString &fileName,
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const TQString &formatName )
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: Resource( 0 ), mFormat( 0 ),
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mAsynchronous( false )
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{
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init( fileName, formatName );
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}
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void ResourceFile::init( const TQString &fileName, const TQString &formatName )
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{
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mFormatName = formatName;
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FormatFactory *factory = FormatFactory::self();
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mFormat = factory->format( mFormatName );
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if ( !mFormat ) {
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mFormatName = "vcard";
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mFormat = factory->format( mFormatName );
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}
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connect( &mDirWatch, TQT_SIGNAL( dirty(const TQString&) ), TQT_SLOT( fileChanged() ) );
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connect( &mDirWatch, TQT_SIGNAL( created(const TQString&) ), TQT_SLOT( fileChanged() ) );
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connect( &mDirWatch, TQT_SIGNAL( deleted(const TQString&) ), TQT_SLOT( fileChanged() ) );
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setFileName( fileName );
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mLock = 0;
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}
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ResourceFile::~ResourceFile()
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{
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delete mFormat;
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mFormat = 0;
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}
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void ResourceFile::writeConfig( TDEConfig *config )
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{
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Resource::writeConfig( config );
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if ( mFileName == StdAddressBook::fileName() )
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config->deleteEntry( "FileName" );
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else
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config->writePathEntry( "FileName", mFileName );
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config->writeEntry( "FileFormat", mFormatName );
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}
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Ticket *ResourceFile::requestSaveTicket()
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{
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kdDebug(5700) << "ResourceFile::requestSaveTicket()" << endl;
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if ( !addressBook() ) return 0;
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delete mLock;
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mLock = new Lock( mFileName );
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if ( mLock->lock() ) {
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addressBook()->emitAddressBookLocked();
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} else {
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addressBook()->error( mLock->error() );
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kdDebug(5700) << "ResourceFile::requestSaveTicket(): Unable to lock file '"
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<< mFileName << "': " << mLock->error() << endl;
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return 0;
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}
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return createTicket( this );
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}
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void ResourceFile::releaseSaveTicket( Ticket *ticket )
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{
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delete ticket;
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delete mLock;
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mLock = 0;
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addressBook()->emitAddressBookUnlocked();
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}
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bool ResourceFile::doOpen()
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{
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TQFile file( mFileName );
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if ( !file.exists() ) {
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// try to create the file
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bool ok = file.open( IO_WriteOnly );
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if ( ok )
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file.close();
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return ok;
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} else {
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TQFileInfo fileInfo( mFileName );
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if ( readOnly() || !fileInfo.isWritable() ) {
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if ( !file.open( IO_ReadOnly ) )
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return false;
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} else {
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if ( !file.open( IO_ReadWrite ) )
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return false;
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}
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if ( file.size() == 0 ) {
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file.close();
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kdDebug() << "File size is zero. Evaluating backups" << endl;
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for (int i=0; i!=20; i++)
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{
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TQFile backup( mFileName + "__" + TQString::number(i) );
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kdDebug() << "Evaluating" << backup.name() << " size: " << backup.size() << endl;
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if ( backup.size() != 0 )
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{
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kdDebug() << "Restoring backup " << i << endl;
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const TQString src = mFileName + "__" + TQString::number(i);
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const TQString dest = mFileName;
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// remove dest
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TQFile::remove( dest );
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// copy src to dest
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if ( backup.open( IO_ReadOnly ) ) {
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const TQByteArray data = backup.readAll();
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TQFile out( dest );
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if ( out.open( IO_WriteOnly ) ) {
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out.writeBlock( data );
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out.close();
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}
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backup.close();
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}
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return true;
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}
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}
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return true;
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}
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bool ok = mFormat->checkFormat( &file );
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file.close();
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return ok;
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}
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}
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void ResourceFile::doClose()
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{
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}
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bool ResourceFile::load()
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{
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kdDebug(5700) << "ResourceFile::load(): '" << mFileName << "'" << endl;
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mAsynchronous = false;
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TQFile file( mFileName );
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if ( !file.open( IO_ReadOnly ) ) {
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addressBook()->error( i18n( "Unable to open file '%1'." ).arg( mFileName ) );
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return false;
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}
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clear();
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return mFormat->loadAll( addressBook(), this, &file );
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}
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bool ResourceFile::asyncLoad()
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{
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kdDebug(5700) << "ResourceFile::asyncLoad()" << endl;
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mAsynchronous = true;
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bool ok = load();
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if ( !ok )
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emitLoadingError();
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else
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emitLoadingFinished();
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return true;
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}
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bool ResourceFile::save( Ticket * )
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{
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kdDebug(5700) << "ResourceFile::save()" << endl;
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// Only do the logrotate dance when the __0 file is not 0 bytes.
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TQFile file( mFileName + "__0" );
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if ( file.size() != 0 ) {
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const TQString last = mFileName + "__20";
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kdDebug() << "deleting " << last << endl;
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TQFile::remove( last );
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for (int i=19; i>=0; i--)
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{
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const TQString src = mFileName + "__" + TQString::number(i);
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const TQString dest = mFileName + "__" + TQString::number(i+1);
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kdDebug() << "moving " << src << " -> " << dest << endl;
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// copy src to dest
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TQFile in( src );
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if ( in.open( IO_ReadOnly ) ) {
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const TQByteArray data = in.readAll();
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TQFile out( dest );
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if ( out.open( IO_WriteOnly ) ) {
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out.writeBlock( data );
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out.close();
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}
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in.close();
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}
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// remove src
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TQFile::remove( src );
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}
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} else
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kdDebug() << "Not starting logrotate __0 is 0 bytes." << endl;
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TQString extension = "__0";
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(void) KSaveFile::backupFile( mFileName, TQString::null /*directory*/,
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extension );
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mDirWatch.stopScan();
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KSaveFile saveFile( mFileName );
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bool ok = false;
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if ( saveFile.status() == 0 && saveFile.file() ) {
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mFormat->saveAll( addressBook(), this, saveFile.file() );
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ok = saveFile.close();
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}
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if ( !ok ) {
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saveFile.abort();
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addressBook()->error( i18n( "Unable to save file '%1'." ).arg( mFileName ) );
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}
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mDirWatch.startScan();
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return ok;
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}
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bool ResourceFile::asyncSave( Ticket *ticket )
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{
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kdDebug(5700) << "ResourceFile::asyncSave()" << endl;
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bool ok = save( ticket );
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if ( !ok )
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TQTimer::singleShot( 0, this, TQT_SLOT( emitSavingError() ) );
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else
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TQTimer::singleShot( 0, this, TQT_SLOT( emitSavingFinished() ) );
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return ok;
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}
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void ResourceFile::setFileName( const TQString &fileName )
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{
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mDirWatch.stopScan();
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if ( mDirWatch.contains( mFileName ) )
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mDirWatch.removeFile( mFileName );
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mFileName = fileName;
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mDirWatch.addFile( mFileName );
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mDirWatch.startScan();
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}
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TQString ResourceFile::fileName() const
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{
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return mFileName;
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}
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void ResourceFile::setFormat( const TQString &format )
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{
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mFormatName = format;
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delete mFormat;
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FormatFactory *factory = FormatFactory::self();
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mFormat = factory->format( mFormatName );
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}
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TQString ResourceFile::format() const
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{
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return mFormatName;
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}
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void ResourceFile::fileChanged()
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{
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kdDebug(5700) << "ResourceFile::fileChanged(): " << mFileName << endl;
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if ( !addressBook() )
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return;
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if ( mAsynchronous )
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asyncLoad();
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else {
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load();
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kdDebug() << "addressBookChanged() " << endl;
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addressBook()->emitAddressBookChanged();
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}
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}
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void ResourceFile::removeAddressee( const Addressee &addr )
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{
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TQFile::remove( TQFile::encodeName( locateLocal( "data", "kabc/photos/" ) + addr.uid() ) );
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TQFile::remove( TQFile::encodeName( locateLocal( "data", "kabc/logos/" ) + addr.uid() ) );
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TQFile::remove( TQFile::encodeName( locateLocal( "data", "kabc/sounds/" ) + addr.uid() ) );
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mAddrMap.erase( addr.uid() );
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}
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void ResourceFile::emitSavingFinished()
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{
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emit savingFinished( this );
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}
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void ResourceFile::emitSavingError()
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{
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emit savingError( this, i18n( "Unable to save file '%1'." ).arg( mFileName ) );
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}
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void ResourceFile::emitLoadingFinished()
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{
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emit loadingFinished( this );
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}
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void ResourceFile::emitLoadingError()
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{
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emit loadingError( this, i18n( "Problems during parsing file '%1'." ).arg( mFileName ) );
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}
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#include "resourcefile.moc"
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