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koffice/lib/store/KoZipStore.cpp

238 lines
7.3 KiB

/* This file is part of the KDE project
Copyright (C) 2000-2002 David Faure <faure@kde.org>
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 "KoZipStore.h"
#include <qbuffer.h>
#include <kzip.h>
#include <kdebug.h>
#include <kdeversion.h>
#include <kurl.h>
#include <kio/netaccess.h>
#if ! KDE_IS_VERSION( 3, 4, 1 )
#include <qdir.h>
#include <qfileinfo.h>
#endif
KoZipStore::KoZipStore( const QString & _filename, Mode _mode, const QCString & appIdentification )
{
kdDebug(s_area) << "KoZipStore Constructor filename = " << _filename
<< " mode = " << int(_mode)
<< " mimetype = " << appIdentification << endl;
m_pZip = new KZip( _filename );
#if ! KDE_IS_VERSION( 3, 4, 1 )
// Workaround for KZip KSaveFile double deletion in kdelibs-3.4,
// when trying to write to a non-writable directory.
QDir dir( QFileInfo( _filename ).dir() );
if (_mode == Write && !QFileInfo( dir.path() ).isWritable() )
{
kdWarning(s_area) << dir.path() << " isn't writable" << endl;
m_bGood = false;
m_currentDir = 0;
KoStore::init( _mode );
}
else
#endif
{
m_bGood = init( _mode, appIdentification ); // open the zip file and init some vars
}
}
KoZipStore::KoZipStore( QIODevice *dev, Mode mode, const QCString & appIdentification )
{
m_pZip = new KZip( dev );
m_bGood = init( mode, appIdentification );
}
KoZipStore::KoZipStore( QWidget* window, const KURL & _url, const QString & _filename, Mode _mode, const QCString & appIdentification )
{
kdDebug(s_area) << "KoZipStore Constructor url" << _url.prettyURL()
<< " filename = " << _filename
<< " mode = " << int(_mode)
<< " mimetype = " << appIdentification << endl;
m_url = _url;
m_window = window;
if ( _mode == KoStore::Read )
{
m_fileMode = KoStoreBase::RemoteRead;
m_localFileName = _filename;
}
else
{
m_fileMode = KoStoreBase::RemoteWrite;
m_localFileName = "/tmp/kozip"; // ### FIXME with KTempFile
}
m_pZip = new KZip( m_localFileName );
m_bGood = init( _mode, appIdentification ); // open the zip file and init some vars
}
KoZipStore::~KoZipStore()
{
kdDebug(s_area) << "KoZipStore::~KoZipStore" << endl;
m_pZip->close();
delete m_pZip;
// Now we have still some job to do for remote files.
if ( m_fileMode == KoStoreBase::RemoteRead )
{
KIO::NetAccess::removeTempFile( m_localFileName );
}
else if ( m_fileMode == KoStoreBase::RemoteWrite )
{
KIO::NetAccess::upload( m_localFileName, m_url, m_window );
// ### FIXME: delete temp file
}
}
bool KoZipStore::init( Mode _mode, const QCString& appIdentification )
{
KoStore::init( _mode );
m_currentDir = 0;
bool good = m_pZip->open( _mode == Write ? IO_WriteOnly : IO_ReadOnly );
if ( good && _mode == Read )
good = m_pZip->directory() != 0;
else if ( good && _mode == Write )
{
//kdDebug(s_area) << "KoZipStore::init writing mimetype " << appIdentification << endl;
m_pZip->setCompression( KZip::NoCompression );
m_pZip->setExtraField( KZip::NoExtraField );
// Write identification
(void)m_pZip->writeFile( "mimetype", "", "", appIdentification.length(), appIdentification.data() );
m_pZip->setCompression( KZip::DeflateCompression );
// We don't need the extra field in KOffice - so we leave it as "no extra field".
}
return good;
}
bool KoZipStore::openWrite( const QString& name )
{
#if 0
// Prepare memory buffer for writing
m_byteArray.resize( 0 );
m_stream = new QBuffer( m_byteArray );
m_stream->open( IO_WriteOnly );
return true;
#endif
m_stream = 0L; // Don't use!
return m_pZip->prepareWriting( name, "", "" /*m_pZip->rootDir()->user(), m_pZip->rootDir()->group()*/, 0 );
}
bool KoZipStore::openRead( const QString& name )
{
const KArchiveEntry * entry = m_pZip->directory()->entry( name );
if ( entry == 0L )
{
//kdWarning(s_area) << "Unknown filename " << name << endl;
//return KIO::ERR_DOES_NOT_EXIST;
return false;
}
if ( entry->isDirectory() )
{
kdWarning(s_area) << name << " is a directory !" << endl;
//return KIO::ERR_IS_DIRECTORY;
return false;
}
// Must cast to KZipFileEntry, not only KArchiveFile, because device() isn't virtual!
const KZipFileEntry * f = static_cast<const KZipFileEntry *>(entry);
delete m_stream;
m_stream = f->device();
m_iSize = f->size();
return true;
}
Q_LONG KoZipStore::write( const char* _data, Q_ULONG _len )
{
if ( _len == 0L ) return 0;
//kdDebug(s_area) << "KoZipStore::write " << _len << endl;
if ( !m_bIsOpen )
{
kdError(s_area) << "KoStore: You must open before writing" << endl;
return 0L;
}
if ( m_mode != Write )
{
kdError(s_area) << "KoStore: Can not write to store that is opened for reading" << endl;
return 0L;
}
m_iSize += _len;
if ( m_pZip->writeData( _data, _len ) ) // writeData returns a bool!
return _len;
return 0L;
}
bool KoZipStore::closeWrite()
{
kdDebug(s_area) << "Wrote file " << m_sName << " into ZIP archive. size "
<< m_iSize << endl;
return m_pZip->doneWriting( m_iSize );
#if 0
if ( !m_pZip->writeFile( m_sName , "user", "group", m_iSize, m_byteArray.data() ) )
kdWarning( s_area ) << "Failed to write " << m_sName << endl;
m_byteArray.resize( 0 ); // save memory
return true;
#endif
}
bool KoZipStore::enterRelativeDirectory( const QString& dirName )
{
if ( m_mode == Read ) {
if ( !m_currentDir ) {
m_currentDir = m_pZip->directory(); // initialize
Q_ASSERT( m_currentPath.isEmpty() );
}
const KArchiveEntry *entry = m_currentDir->entry( dirName );
if ( entry && entry->isDirectory() ) {
m_currentDir = dynamic_cast<const KArchiveDirectory*>( entry );
return m_currentDir != 0;
}
return false;
}
else // Write, no checking here
return true;
}
bool KoZipStore::enterAbsoluteDirectory( const QString& path )
{
if ( path.isEmpty() )
{
m_currentDir = 0;
return true;
}
m_currentDir = dynamic_cast<const KArchiveDirectory*>( m_pZip->directory()->entry( path ) );
Q_ASSERT( m_currentDir );
return m_currentDir != 0;
}
bool KoZipStore::fileExists( const QString& absPath ) const
{
const KArchiveEntry *entry = m_pZip->directory()->entry( absPath );
return entry && entry->isFile();
}