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-rw-r--r--kabc/plugins/file/resourcefile.cpp395
1 files changed, 395 insertions, 0 deletions
diff --git a/kabc/plugins/file/resourcefile.cpp b/kabc/plugins/file/resourcefile.cpp
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+++ b/kabc/plugins/file/resourcefile.cpp
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+/*
+ This file is part of libkabc.
+
+ Copyright (c) 2001,2003 Cornelius Schumacher <schumacher@kde.org>
+ Copyright (c) 2006 Tom Abers <tomalbers@kde.nl>
+
+ This library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Library General Public
+ License as published by the Free Software Foundation; either
+ version 2 of the License, or (at your option) any later version.
+
+ This library 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
+ Library General Public License for more details.
+
+ You should have received a copy of the GNU Library General Public License
+ along with this library; see the file COPYING.LIB. If not, write to
+ the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ Boston, MA 02110-1301, USA.
+*/
+
+#include <signal.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <unistd.h>
+
+#include <qfile.h>
+#include <qfileinfo.h>
+#include <qtimer.h>
+
+#include <kapplication.h>
+#include <kconfig.h>
+#include <kdebug.h>
+#include <kio/scheduler.h>
+#include <klocale.h>
+#include <ksavefile.h>
+#include <kstandarddirs.h>
+
+#include "formatfactory.h"
+#include "resourcefileconfig.h"
+#include "stdaddressbook.h"
+#include "lock.h"
+
+#include "resourcefile.h"
+
+using namespace KABC;
+
+ResourceFile::ResourceFile( const KConfig *config )
+ : Resource( config ), mFormat( 0 ),
+ mAsynchronous( false )
+{
+ QString fileName, formatName;
+
+ if ( config ) {
+ fileName = config->readPathEntry( "FileName", StdAddressBook::fileName() );
+ formatName = config->readEntry( "FileFormat", "vcard" );
+ } else {
+ fileName = StdAddressBook::fileName();
+ formatName = "vcard";
+ }
+
+ init( fileName, formatName );
+}
+
+ResourceFile::ResourceFile( const QString &fileName,
+ const QString &formatName )
+ : Resource( 0 ), mFormat( 0 ),
+ mAsynchronous( false )
+{
+ init( fileName, formatName );
+}
+
+void ResourceFile::init( const QString &fileName, const QString &formatName )
+{
+ mFormatName = formatName;
+
+ FormatFactory *factory = FormatFactory::self();
+ mFormat = factory->format( mFormatName );
+
+ if ( !mFormat ) {
+ mFormatName = "vcard";
+ mFormat = factory->format( mFormatName );
+ }
+
+ connect( &mDirWatch, SIGNAL( dirty(const QString&) ), SLOT( fileChanged() ) );
+ connect( &mDirWatch, SIGNAL( created(const QString&) ), SLOT( fileChanged() ) );
+ connect( &mDirWatch, SIGNAL( deleted(const QString&) ), SLOT( fileChanged() ) );
+
+ setFileName( fileName );
+
+ mLock = 0;
+}
+
+ResourceFile::~ResourceFile()
+{
+ delete mFormat;
+ mFormat = 0;
+}
+
+void ResourceFile::writeConfig( KConfig *config )
+{
+ Resource::writeConfig( config );
+
+ if ( mFileName == StdAddressBook::fileName() )
+ config->deleteEntry( "FileName" );
+ else
+ config->writePathEntry( "FileName", mFileName );
+
+ config->writeEntry( "FileFormat", mFormatName );
+}
+
+Ticket *ResourceFile::requestSaveTicket()
+{
+ kdDebug(5700) << "ResourceFile::requestSaveTicket()" << endl;
+
+ if ( !addressBook() ) return 0;
+
+ delete mLock;
+ mLock = new Lock( mFileName );
+
+ if ( mLock->lock() ) {
+ addressBook()->emitAddressBookLocked();
+ } else {
+ addressBook()->error( mLock->error() );
+ kdDebug(5700) << "ResourceFile::requestSaveTicket(): Unable to lock file '"
+ << mFileName << "': " << mLock->error() << endl;
+ return 0;
+ }
+
+ return createTicket( this );
+}
+
+void ResourceFile::releaseSaveTicket( Ticket *ticket )
+{
+ delete ticket;
+
+ delete mLock;
+ mLock = 0;
+
+ addressBook()->emitAddressBookUnlocked();
+}
+
+bool ResourceFile::doOpen()
+{
+ QFile file( mFileName );
+
+ if ( !file.exists() ) {
+ // try to create the file
+ bool ok = file.open( IO_WriteOnly );
+ if ( ok )
+ file.close();
+
+ return ok;
+ } else {
+ QFileInfo fileInfo( mFileName );
+ if ( readOnly() || !fileInfo.isWritable() ) {
+ if ( !file.open( IO_ReadOnly ) )
+ return false;
+ } else {
+ if ( !file.open( IO_ReadWrite ) )
+ return false;
+ }
+
+ if ( file.size() == 0 ) {
+ file.close();
+ kdDebug() << "File size is zero. Evaluating backups" << endl;
+ for (int i=0; i!=20; i++)
+ {
+ QFile backup( mFileName + "__" + QString::number(i) );
+ kdDebug() << "Evaluating" << backup.name() << " size: " << backup.size() << endl;
+ if ( backup.size() != 0 )
+ {
+ kdDebug() << "Restoring backup " << i << endl;
+ const QString src = mFileName + "__" + QString::number(i);
+ const QString dest = mFileName;
+
+ // remove dest
+ QFile::remove( dest );
+
+ // copy src to dest
+ if ( backup.open( IO_ReadOnly ) ) {
+ const QByteArray data = backup.readAll();
+
+ QFile out( dest );
+ if ( out.open( IO_WriteOnly ) ) {
+ out.writeBlock( data );
+ out.close();
+ }
+
+ backup.close();
+ }
+ return true;
+ }
+ }
+ return true;
+ }
+
+ bool ok = mFormat->checkFormat( &file );
+ file.close();
+
+ return ok;
+ }
+}
+
+void ResourceFile::doClose()
+{
+}
+
+bool ResourceFile::load()
+{
+ kdDebug(5700) << "ResourceFile::load(): '" << mFileName << "'" << endl;
+
+ mAsynchronous = false;
+
+ QFile file( mFileName );
+ if ( !file.open( IO_ReadOnly ) ) {
+ addressBook()->error( i18n( "Unable to open file '%1'." ).arg( mFileName ) );
+ return false;
+ }
+
+ clear();
+
+ return mFormat->loadAll( addressBook(), this, &file );
+}
+
+bool ResourceFile::asyncLoad()
+{
+ kdDebug(5700) << "ResourceFile::asyncLoad()" << endl;
+
+ mAsynchronous = true;
+
+ bool ok = load();
+
+ if ( !ok )
+ emitLoadingError();
+ else
+ emitLoadingFinished();
+
+ return true;
+}
+
+bool ResourceFile::save( Ticket * )
+{
+ kdDebug(5700) << "ResourceFile::save()" << endl;
+
+ // Only do the logrotate dance when the __0 file is not 0 bytes.
+ QFile file( mFileName + "__0" );
+ if ( file.size() != 0 ) {
+ const QString last = mFileName + "__20";
+ kdDebug() << "deleting " << last << endl;
+
+ QFile::remove( last );
+
+ for (int i=19; i>=0; i--)
+ {
+ const QString src = mFileName + "__" + QString::number(i);
+ const QString dest = mFileName + "__" + QString::number(i+1);
+ kdDebug() << "moving " << src << " -> " << dest << endl;
+
+ // copy src to dest
+ QFile in( src );
+ if ( in.open( IO_ReadOnly ) ) {
+ const QByteArray data = in.readAll();
+
+ QFile out( dest );
+ if ( out.open( IO_WriteOnly ) ) {
+ out.writeBlock( data );
+ out.close();
+ }
+
+ in.close();
+ }
+
+ // remove src
+ QFile::remove( src );
+ }
+ } else
+ kdDebug() << "Not starting logrotate __0 is 0 bytes." << endl;
+
+ QString extension = "__0";
+ (void) KSaveFile::backupFile( mFileName, QString::null /*directory*/,
+ extension );
+
+ mDirWatch.stopScan();
+
+ KSaveFile saveFile( mFileName );
+ bool ok = false;
+
+ if ( saveFile.status() == 0 && saveFile.file() ) {
+ mFormat->saveAll( addressBook(), this, saveFile.file() );
+ ok = saveFile.close();
+ }
+
+ if ( !ok ) {
+ saveFile.abort();
+ addressBook()->error( i18n( "Unable to save file '%1'." ).arg( mFileName ) );
+ }
+
+ mDirWatch.startScan();
+
+ return ok;
+}
+
+bool ResourceFile::asyncSave( Ticket *ticket )
+{
+ kdDebug(5700) << "ResourceFile::asyncSave()" << endl;
+
+ bool ok = save( ticket );
+
+ if ( !ok )
+ QTimer::singleShot( 0, this, SLOT( emitSavingError() ) );
+ else
+ QTimer::singleShot( 0, this, SLOT( emitSavingFinished() ) );
+
+ return ok;
+}
+
+void ResourceFile::setFileName( const QString &fileName )
+{
+ mDirWatch.stopScan();
+ if ( mDirWatch.contains( mFileName ) )
+ mDirWatch.removeFile( mFileName );
+
+ mFileName = fileName;
+
+ mDirWatch.addFile( mFileName );
+ mDirWatch.startScan();
+}
+
+QString ResourceFile::fileName() const
+{
+ return mFileName;
+}
+
+void ResourceFile::setFormat( const QString &format )
+{
+ mFormatName = format;
+ delete mFormat;
+
+ FormatFactory *factory = FormatFactory::self();
+ mFormat = factory->format( mFormatName );
+}
+
+QString ResourceFile::format() const
+{
+ return mFormatName;
+}
+
+void ResourceFile::fileChanged()
+{
+ kdDebug(5700) << "ResourceFile::fileChanged(): " << mFileName << endl;
+
+ if ( !addressBook() )
+ return;
+
+ if ( mAsynchronous )
+ asyncLoad();
+ else {
+ load();
+ kdDebug() << "addressBookChanged() " << endl;
+ addressBook()->emitAddressBookChanged();
+ }
+}
+
+void ResourceFile::removeAddressee( const Addressee &addr )
+{
+ QFile::remove( QFile::encodeName( locateLocal( "data", "kabc/photos/" ) + addr.uid() ) );
+ QFile::remove( QFile::encodeName( locateLocal( "data", "kabc/logos/" ) + addr.uid() ) );
+ QFile::remove( QFile::encodeName( locateLocal( "data", "kabc/sounds/" ) + addr.uid() ) );
+
+ mAddrMap.erase( addr.uid() );
+}
+
+void ResourceFile::emitSavingFinished()
+{
+ emit savingFinished( this );
+}
+
+void ResourceFile::emitSavingError()
+{
+ emit savingError( this, i18n( "Unable to save file '%1'." ).arg( mFileName ) );
+}
+
+void ResourceFile::emitLoadingFinished()
+{
+ emit loadingFinished( this );
+}
+
+void ResourceFile::emitLoadingError()
+{
+ emit loadingError( this, i18n( "Problems during parsing file '%1'." ).arg( mFileName ) );
+}
+
+#include "resourcefile.moc"