Initial import

1 files changed, 296 insertions, 0 deletions

diff --git a/src/fileimporterbibutils.cpp b/src/fileimporterbibutils.cpp
new file mode 100644
index 0000000..bd2b622
--- /dev/null
+++ b/src/fileimporterbibutils.cpp
@@ -0,0 +1,296 @@
+/***************************************************************************
+ *   Copyright (C) 2004-2009 by Thomas Fischer                             *
+ *   fischer@unix-ag.uni-kl.de                                             *
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation; either version 2 of the License, or     *
+ *   (at your option) any later version.                                   *
+ *                                                                         *
+ *   This program 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 General Public License for more details.                          *
+ *                                                                         *
+ *   You should have received a copy of the GNU General Public License     *
+ *   along with this program; if not, write to the                         *
+ *   Free Software Foundation, Inc.,                                       *
+ *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
+ ***************************************************************************/
+#include <stdio.h>
+
+#include <qfile.h>
+#include <qdir.h>
+#include <qprocess.h>
+#include <qstringlist.h>
+#include <qbuffer.h>
+#include <qwaitcondition.h>
+#include <qapplication.h>
+
+#include <file.h>
+#include <encoderlatex.h>
+#include "fileimporterbibutils.h"
+
+namespace BibTeX
+{
+
+    FileImporterBibUtils::FileImporterBibUtils( BibTeX::File::FileFormat inputFormat )
+            : FileImporter(), m_workingDir( createTempDir() ), m_inputFormat( inputFormat ), m_bibTeXImporter( new FileImporterBibTeX( false, "utf-8" ) )
+    {
+        m_processBuffer = new QBuffer();
+    }
+
+    FileImporterBibUtils::~FileImporterBibUtils()
+    {
+        delete m_processBuffer;
+        deleteTempDir( m_workingDir );
+        delete m_bibTeXImporter;
+    }
+
+    File* FileImporterBibUtils::load( QIODevice *iodevice )
+    {
+        m_cancelFlag = false;
+        if ( !iodevice->isReadable() )
+        {
+            qDebug( "iodevice is not readable" );
+            return NULL;
+        }
+        if ( !iodevice->isOpen() )
+        {
+            qDebug( "iodevice is not open" );
+            return NULL;
+        }
+
+        if ( !iodeviceToXMLbuffer( iodevice ) || m_cancelFlag )
+            return NULL;
+
+        return xmlBufferToBibTeXFile();
+    }
+
+    bool FileImporterBibUtils::guessCanDecode( const QString & text )
+    {
+        return guessInputFormat( text ) != BibTeX::File::formatUndefined;
+    }
+
+    File::FileFormat FileImporterBibUtils::guessInputFormat( const QString &text )
+    {
+        if ( text.find( "TY  - " ) >= 0 )
+            return BibTeX::File::formatRIS;
+        else if ( text.find( "%A " ) >= 0 )
+            return BibTeX::File::formatEndNote;
+        else if ( text.find( "FN ISI Export Format" ) >= 0 )
+            return BibTeX::File::formatISI;
+        else
+            return BibTeX::File::formatUndefined;
+    }
+
+    void FileImporterBibUtils::cancel()
+    {
+        m_bibTeXImporter->cancel();
+        m_cancelFlag = true;
+    }
+
+    bool FileImporterBibUtils::iodeviceToXMLbuffer( QIODevice *iodevice )
+    {
+        QWaitCondition wc;
+
+        m_processBuffer->open( IO_WriteOnly );
+        m_process = NULL;
+        switch ( m_inputFormat )
+        {
+        case BibTeX::File::formatISI:
+            m_process = new QProcess( QStringList::split( ' ', "isi2xml -i utf8 -u" ) );
+            break;
+        case BibTeX::File::formatWordBib:
+            m_process = new QProcess( QStringList::split( ' ', "wordbib2xml -i utf8 -u" ) );
+            break;
+        case BibTeX::File::formatAds:
+            m_process = new QProcess( QStringList::split( ' ', "ads2xml -i utf8 -u" ) );
+            break;
+        case BibTeX::File::formatEndNote:
+            m_process = new QProcess( QStringList::split( ' ', "end2xml -i utf8 -u" ) );
+            break;
+        case BibTeX::File::formatEndNoteXML:
+            m_process = new QProcess( QStringList::split( ' ', "endx2xml -i utf8 -u" ) );
+            break;
+        case BibTeX::File::formatRIS:
+            m_process = new QProcess( QStringList::split( ' ', "ris2xml -i utf8 -u" ) );
+            break;
+        case BibTeX::File::formatMODS:
+            /* m_process = NULL; */
+            break;
+        default:
+            qDebug( "Cannot handle input format %i", m_inputFormat );
+            return false;
+        }
+
+        if ( m_process != NULL )
+        {
+            m_waiting = true;
+            connect( m_process, SIGNAL( processExited() ), this, SLOT( wakeUp() ) );
+            connect( m_process, SIGNAL( readyReadStdout() ), this, SLOT( slotReadyStdout() ) );
+            connect( m_process, SIGNAL( readyReadStderr() ), this, SLOT( slotReadyStderr() ) );
+
+            m_process->start();
+            if ( m_process->isRunning() )
+            {
+                QByteArray inData = iodevice->readAll();
+                m_process->writeToStdin( inData );
+                qApp->processEvents();
+                m_process->closeStdin();
+
+                int nothingHappens = 20;
+                while ( m_waiting )
+                {
+                    wc.wait( 250 );
+                    qApp->processEvents();
+                    --nothingHappens;
+                }
+
+                if ( nothingHappens <= 0 )
+                    m_process->kill();
+
+                if ( !m_process->normalExit() )
+                {
+                    qDebug( "%s did not exit in a clean fashion", m_process->arguments()[0].latin1() );
+                    delete m_process;
+                    return false;
+                }
+            }
+            else
+            {
+                qDebug( "%s did not start", m_process->arguments()[0].latin1() );
+                delete m_process;
+                return false;
+            }
+        }
+        else
+        {
+            m_processBuffer->writeBlock( iodevice->readAll() );
+        }
+
+        m_processBuffer->close();
+
+        delete m_process;
+        return true;
+    }
+
+    BibTeX::File* FileImporterBibUtils::xmlBufferToBibTeXFile()
+    {
+        QWaitCondition wc;
+
+        m_waiting = true;
+        m_process = new QProcess( QStringList::split( ' ', "xml2bib -i utf8 -o utf8 -sk" ) );
+        connect( m_process, SIGNAL( processExited() ), this, SLOT( wakeUp() ) );
+        connect( m_process, SIGNAL( readyReadStdout() ), this, SLOT( slotReadyStdout() ) );
+        connect( m_process, SIGNAL( readyReadStderr() ), this, SLOT( slotReadyStderr() ) );
+
+        if ( m_process->start() )
+        {
+            QBuffer *tempBuffer = m_processBuffer;
+            m_processBuffer = new QBuffer();
+
+            tempBuffer->open( IO_ReadOnly );
+            m_process->writeToStdin( tempBuffer->readAll() );
+            qApp->processEvents();
+            m_process->closeStdin();
+            tempBuffer->close();
+
+            m_processBuffer->open( IO_WriteOnly );
+            int nothingHappens = 20;
+            while ( m_waiting )
+            {
+                wc.wait( 250 );
+                qApp->processEvents();
+                --nothingHappens;
+            }
+            m_processBuffer->close();
+
+            if ( nothingHappens <= 0 )
+                m_process->kill();
+
+            delete tempBuffer;
+
+            if ( ! m_process->normalExit() )
+            {
+                delete m_process;
+                return NULL;
+            }
+
+            m_processBuffer->open( IO_ReadOnly );
+            File *bibTeXFile = m_bibTeXImporter->load( m_processBuffer );
+            m_processBuffer->close();
+
+            delete m_process;
+            return bibTeXFile;
+        }
+        else
+        {
+            delete m_process;
+            return NULL;
+        }
+
+        delete m_process;
+        return NULL;
+    }
+
+    QString FileImporterBibUtils::createTempDir()
+    {
+        QString result = QString::null;
+        QFile *devrandom = new QFile( "/dev/random" );
+
+        if ( devrandom->open( IO_ReadOnly ) )
+        {
+            Q_UINT32 randomNumber;
+            if ( devrandom->readBlock(( char* ) & randomNumber, sizeof( randomNumber ) ) > 0 )
+            {
+                randomNumber |= 0x10000000;
+                result = QString( "/tmp/bibtex-%1" ).arg( randomNumber, sizeof( randomNumber ) * 2, 16 );
+                if ( !QDir().mkdir( result ) )
+                    result = QString::null;
+            }
+            devrandom->close();
+        }
+
+        delete devrandom;
+
+        return result;
+    }
+
+    void FileImporterBibUtils::deleteTempDir( const QString& directory )
+    {
+        QDir dir = QDir( directory );
+        QStringList subDirs = dir.entryList( QDir::Dirs );
+        for ( QStringList::Iterator it = subDirs.begin(); it != subDirs.end(); it++ )
+        {
+            if (( QString::compare( *it, "." ) != 0 ) && ( QString::compare( *it, ".." ) != 0 ) )
+                deleteTempDir( *it );
+        }
+        QStringList allEntries = dir.entryList( QDir::All );
+        for ( QStringList::Iterator it = allEntries.begin(); it != allEntries.end(); it++ )
+            dir.remove( *it );
+
+        QDir().rmdir( directory );
+    }
+
+    void FileImporterBibUtils::wakeUp()
+    {
+        m_waiting = false;
+    }
+
+    void FileImporterBibUtils::slotReadyStdout()
+    {
+        m_processBuffer->writeBlock( m_process->readStdout() );
+    }
+
+    void FileImporterBibUtils::slotReadyStderr()
+    {
+        QByteArray ba = m_process->readStderr();
+        QTextStream bats( ba, IO_ReadOnly );
+        bats.setEncoding( QTextStream::UnicodeUTF8 );
+        qDebug( "%s", bats.read().latin1() );
+    }
+
+}
+#include "fileimporterbibutils.moc"
+