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kbibtex/src/webquerysciencedirect.cpp

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/***************************************************************************
* 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 <tqlayout.h>
#include <tqlabel.h>
#include <tqspinbox.h>
#include <tqbuffer.h>
#include <tqfile.h>
#include <kpushbutton.h>
#include <tdelocale.h>
#include <kcombobox.h>
#include <kiconloader.h>
#include <tdeio/jobclasses.h>
#include <tdeio/job.h>
#include <tdeio/netaccess.h>
#include "settings.h"
#include "fileimporterris.h"
#include "webquerysciencedirect.h"
namespace KBibTeX
{
WebQueryScienceDirectWidget::WebQueryScienceDirectWidget( TQWidget *parent, const char *name )
: WebQueryWidget( parent, name )
{
init();
TQString allValues;
Settings *settings = Settings::self();
TQString value = settings->getWebQueryDefault( "ScienceDirect_title" );
value = value == TQString::null ? "" : value;
lineEditQuery->setText( value );
allValues += value;
value = settings->getWebQueryDefault( "ScienceDirect_author" );
value = value == TQString::null ? "" : value;
lineEditAuthor->setText( value );
allValues += value;
value = settings->getWebQueryDefault( "ScienceDirect_journal" );
value = value == TQString::null ? "" : value;
lineEditJournal->setText( value );
allValues += value;
value = settings->getWebQueryDefault( "ScienceDirect_volume" );
value = value == TQString::null ? "" : value;
lineEditVolume->setText( value );
allValues += value;
value = settings->getWebQueryDefault( "ScienceDirect_issue" );
value = value == TQString::null ? "" : value;
lineEditIssue->setText( value );
allValues += value;
value = settings->getWebQueryDefault( "ScienceDirect_page" );
value = value == TQString::null ? "" : value;
lineEditPage->setText( value );
allValues += value;
slotTextChanged( allValues, true );
}
void WebQueryScienceDirectWidget::init()
{
TQVBoxLayout *vLayout = new TQVBoxLayout( this, 0, KDialog::spacingHint() );
TQHBoxLayout *hLayout = new TQHBoxLayout( );
vLayout->addLayout( hLayout );
KPushButton *clearSearchText = new KPushButton( this );
clearSearchText->setIconSet( TQIconSet( SmallIcon( "locationbar_erase" ) ) );
hLayout->addWidget( clearSearchText );
TQLabel *label = new TQLabel( i18n( "Title, abstract, keywords:" ), this );
hLayout->addWidget( label );
lineEditQuery = new KLineEdit( this );
TDECompletion *completionQuery = lineEditQuery->completionObject();
hLayout->addWidget( lineEditQuery );
label->setBuddy( lineEditQuery );
connect( clearSearchText, SIGNAL( clicked() ), lineEditQuery, SLOT( clear() ) );
connect( lineEditQuery, SIGNAL( textChanged( const TQString& ) ), this, SLOT( slotTextChangedSD( ) ) );
hLayout->setStretchFactor( lineEditQuery, 7 );
connect( lineEditQuery, SIGNAL( returnPressed() ), this, SIGNAL( startSearch() ) );
connect( lineEditQuery, SIGNAL( returnPressed( const TQString& ) ), completionQuery, SLOT( addItem( const TQString& ) ) );
hLayout = new TQHBoxLayout( );
vLayout->addLayout( hLayout );
KPushButton *clearAuthor = new KPushButton( this );
clearAuthor->setIconSet( TQIconSet( SmallIcon( "locationbar_erase" ) ) );
hLayout->addWidget( clearAuthor );
label = new TQLabel( i18n( "Author:" ), this );
hLayout->addWidget( label );
lineEditAuthor = new KLineEdit( this );
completionQuery = lineEditAuthor->completionObject();
hLayout->addWidget( lineEditAuthor );
label->setBuddy( lineEditAuthor );
connect( clearAuthor, SIGNAL( clicked() ), lineEditAuthor, SLOT( clear() ) );
connect( lineEditAuthor, SIGNAL( textChanged( const TQString& ) ), this, SLOT( slotTextChangedSD( ) ) );
hLayout->setStretchFactor( lineEditAuthor, 7 );
connect( lineEditAuthor, SIGNAL( returnPressed() ), this, SIGNAL( startSearch() ) );
connect( lineEditAuthor, SIGNAL( returnPressed( const TQString& ) ), completionQuery, SLOT( addItem( const TQString& ) ) );
hLayout->addSpacing( KDialog::spacingHint() * 2 );
KPushButton *clearJournal = new KPushButton( this );
clearJournal->setIconSet( TQIconSet( SmallIcon( "locationbar_erase" ) ) );
hLayout->addWidget( clearJournal );
label = new TQLabel( i18n( "Journal/book title:" ), this );
hLayout->addWidget( label );
lineEditJournal = new KLineEdit( this );
completionQuery = lineEditJournal->completionObject();
hLayout->addWidget( lineEditJournal );
label->setBuddy( lineEditJournal );
connect( clearJournal, SIGNAL( clicked() ), lineEditJournal, SLOT( clear() ) );
connect( lineEditJournal, SIGNAL( textChanged( const TQString& ) ), this, SLOT( slotTextChangedSD( ) ) );
hLayout->setStretchFactor( lineEditJournal, 4 );
connect( lineEditJournal, SIGNAL( returnPressed() ), this, SIGNAL( startSearch() ) );
connect( lineEditJournal, SIGNAL( returnPressed( const TQString& ) ), completionQuery, SLOT( addItem( const TQString& ) ) );
hLayout = new TQHBoxLayout( );
vLayout->addLayout( hLayout );
label = new TQLabel( i18n( "Volume:" ), this );
hLayout->addWidget( label );
lineEditVolume = new KLineEdit( this );
hLayout->addWidget( lineEditVolume );
hLayout->setStretchFactor( lineEditVolume, 1 );
label->setBuddy( lineEditVolume );
connect( lineEditVolume, SIGNAL( returnPressed() ), this, SIGNAL( startSearch() ) );
hLayout->addSpacing( KDialog::spacingHint() * 2 );
label = new TQLabel( i18n( "Issue:" ), this );
hLayout->addWidget( label );
lineEditIssue = new KLineEdit( this );
hLayout->addWidget( lineEditIssue );
label->setBuddy( lineEditIssue );
hLayout->setStretchFactor( lineEditIssue, 1 );
connect( lineEditIssue, SIGNAL( returnPressed() ), this, SIGNAL( startSearch() ) );
hLayout->addSpacing( KDialog::spacingHint() * 2 );
label = new TQLabel( i18n( "Page:" ), this );
hLayout->addWidget( label );
lineEditPage = new KLineEdit( this );
hLayout->addWidget( lineEditPage );
hLayout->setStretchFactor( lineEditPage, 1 );
label->setBuddy( lineEditPage );
connect( lineEditPage, SIGNAL( returnPressed() ), this, SIGNAL( startSearch() ) );
hLayout->addSpacing( KDialog::spacingHint() * 2 );
label = new TQLabel( i18n( "&Number of results:" ), this );
hLayout->addWidget( label );
spinBoxMaxHits = new TQSpinBox( 1, 100, 1, this );
spinBoxMaxHits->setValue( 10 );
hLayout->addWidget( spinBoxMaxHits );
hLayout->setStretchFactor( spinBoxMaxHits, 1 );
label->setBuddy( spinBoxMaxHits );
hLayout->addStretch( 5 );
}
void WebQueryScienceDirectWidget::slotTextChangedSD()
{
TQString text = lineEditQuery->text().stripWhiteSpace().append( lineEditAuthor->text().stripWhiteSpace() ).append( lineEditJournal->text().stripWhiteSpace() ).replace( '$', "" );
emit enableSearch( !text.isEmpty() );
}
WebQueryScienceDirect::WebQueryScienceDirect( TQWidget* parent ): WebQuery( parent )
{
m_importer = new BibTeX::FileImporterBibTeX( FALSE );
m_importer->setIgnoreComments( TRUE );
m_widget = new WebQueryScienceDirectWidget( parent );
}
WebQueryScienceDirect::~WebQueryScienceDirect()
{
delete m_widget;
delete m_importer;
}
TQString WebQueryScienceDirect::title()
{
return i18n( "ScienceDirect" );
}
TQString WebQueryScienceDirect::disclaimer()
{
return i18n( "About ScienceDirect" );
}
TQString WebQueryScienceDirect::disclaimerURL()
{
return "http://info.sciencedirect.com/";
}
WebQueryWidget *WebQueryScienceDirect::widget()
{
return m_widget;
}
void WebQueryScienceDirect::query()
{
WebQuery::query();
Settings *settings = Settings::self();
settings->setWebQueryDefault( "ScienceDirect_author", m_widget->lineEditAuthor->text() );
settings->setWebQueryDefault( "ScienceDirect_journal", m_widget->lineEditJournal->text() );
settings->setWebQueryDefault( "ScienceDirect_volume", m_widget->lineEditVolume->text() );
settings->setWebQueryDefault( "ScienceDirect_issue", m_widget->lineEditIssue->text() );
settings->setWebQueryDefault( "ScienceDirect_page", m_widget->lineEditPage->text() );
TQString tak = m_widget->lineEditQuery->text().stripWhiteSpace().replace( '$', "" ).replace( "%", "%25" ).replace( "+", "%2B" ).replace( " ", "%20" ).replace( "#", "%23" ).replace( "&", "%26" ).replace( "?", "%3F" );
TQString author = m_widget->lineEditAuthor->text().stripWhiteSpace().replace( '$', "" ).replace( "%", "%25" ).replace( "+", "%2B" ).replace( " ", "%20" ).replace( "#", "%23" ).replace( "&", "%26" ).replace( "?", "%3F" );
TQString journal = m_widget->lineEditJournal->text().stripWhiteSpace().replace( '$', "" ).replace( "%", "%25" ).replace( "+", "%2B" ).replace( " ", "%20" ).replace( "#", "%23" ).replace( "&", "%26" ).replace( "?", "%3F" );
TQString volume = m_widget->lineEditVolume->text().stripWhiteSpace().replace( '$', "" ).replace( "%", "%25" ).replace( "+", "%2B" ).replace( " ", "%20" ).replace( "#", "%23" ).replace( "&", "%26" ).replace( "?", "%3F" );
TQString issue = m_widget->lineEditIssue->text().stripWhiteSpace().replace( '$', "" ).replace( "%", "%25" ).replace( "+", "%2B" ).replace( " ", "%20" ).replace( "#", "%23" ).replace( "&", "%26" ).replace( "?", "%3F" );
TQString page = m_widget->lineEditPage->text().stripWhiteSpace().replace( '$', "" ).replace( "%", "%25" ).replace( "+", "%2B" ).replace( " ", "%20" ).replace( "#", "%23" ).replace( "&", "%26" ).replace( "?", "%3F" );
if ( tak.isEmpty() && author.isEmpty() && journal.isEmpty() )
{
setEndSearch( WebQuery::statusInvalidQuery );
return;
}
setNumStages( 4 );
if ( !getStartPage() ) return;
if ( !getResultPage( tak, author, journal, volume, issue, page ) ) return;
if ( !getArticleListPage() ) return;
if ( !getRISFile() ) return;
}
bool WebQueryScienceDirect::getStartPage()
{
TQString startPage = downloadHTML( KURL( "http://www.sciencedirect.com/" ) );
if ( m_aborted )
{
setEndSearch( WebQuery::statusAborted );
return false;
}
else if ( startPage == TQString::null )
{
setEndSearch( WebQuery::statusError );
return false;
}
int pos = startPage.find( "<input type=\"hidden\" name=\"_acct\" value=\"" );
if ( pos < 0 )
{
setEndSearch( WebQuery::statusError );
return false;
}
m_account = startPage.mid( pos + 41, startPage.find( "\"", pos + 43 ) - pos - 41 );
pos = startPage.find( "<input type=\"hidden\" name=\"md5\" value=\"" );
if ( pos < 0 )
{
setEndSearch( WebQuery::statusError );
return false;
}
m_md5 = startPage.mid( pos + 39, startPage.find( "\"", pos + 41 ) - pos - 39 );
return true;
}
bool WebQueryScienceDirect::getResultPage( const TQString &tak, const TQString &author, const TQString &journal, const TQString &volume, const TQString &issue, const TQString &page )
{
KURL url = KURL( TQString( "http://www.sciencedirect.com/science?_ob=QuickSearchURL&_method=submitForm&qs_tak=" ).append( tak ).append( "&qs_author=" ).append( author ).append( "&qs_title=" ).append( journal ).append( "&qs_vol=" ).append( volume ).append( "&qs_issue=" ).append( issue ).append( "&qs_pages=" ).append( page ).append( "&_acct=" ).append( m_account ).append( "&md5=" ).append( m_md5 ).append( "&x=0&y=0&=Submit" ) );
TQString resultPage = downloadHTML( url );
if ( m_aborted )
{
setEndSearch( WebQuery::statusAborted );
return false;
}
else if ( resultPage == TQString::null )
{
setEndSearch( WebQuery::statusError );
return false;
}
int pos = resultPage.find( "<input type=\"hidden\" name=\"_ArticleListID\" value=" );
if ( pos < 0 )
{
setEndSearch( WebQuery::statusError );
return false;
}
m_articleListID = resultPage.mid( pos + 49, resultPage.find( ">", pos + 50 ) - pos - 49 );
pos = resultPage.find( "<input type=\"hidden\" name=\"md5\" value=\"" );
pos = resultPage.find( "<input type=\"hidden\" name=\"md5\" value=\"" , pos + 2 );
if ( pos < 0 )
{
setEndSearch( WebQuery::statusError );
return false;
}
m_md5 = resultPage.mid( pos + 39, 32 );
pos = resultPage.find( "_userid=" );
if ( pos < 0 )
{
setEndSearch( WebQuery::statusError );
return false;
}
m_userid = resultPage.mid( pos + 8, resultPage.find( "&", pos + 9 ) - pos - 8 );
return true;
}
bool WebQueryScienceDirect::getArticleListPage()
{
KURL url = KURL( TQString( "http://www.sciencedirect.com/science?_ob=ArticleListURL&_method=tag&refSource=search&_st=13&_chunk=0&NEXT_LIST=1&view=c&md5=%1&_ArticleListID=%2&sisr_search=&sisrterm=&export=Export+Citations&count=%3" ).arg( m_md5 ).arg( m_articleListID ).arg( m_widget->spinBoxMaxHits->value() ) );
TQString articleListPage = downloadHTML( url );
if ( m_aborted )
{
setEndSearch( WebQuery::statusAborted );
return false;
}
else if ( articleListPage == TQString::null )
{
setEndSearch( WebQuery::statusError );
return false;
}
else if ( articleListPage.find( "subscription does not entitle" ) >= 0 )
{
tqWarning( "Your subscription does not entitle you to access the download feature of ScienceDirect" );
setEndSearch( WebQuery::statusInsufficientPermissions );
return false;
}
int pos = articleListPage.find( "<input type=hidden name=md5 value=" );
if ( pos < 0 )
{
setEndSearch( WebQuery::statusError );
return false;
}
m_md5 = articleListPage.mid( pos + 34, articleListPage.find( ">", pos + 36 ) - pos - 34 );
pos = articleListPage.find( "<input type=hidden name=_ArticleListID value=" );
if ( pos < 0 )
{
setEndSearch( WebQuery::statusError );
return false;
}
m_articleListID = articleListPage.mid( pos + 45, articleListPage.find( ">", pos + 46 ) - pos - 45 );
return true;
}
bool WebQueryScienceDirect::getRISFile()
{
m_incomingData = "";
TQString data = TQString( "_ob=DownloadURL&_method=finish&_acct=%1&_userid=%2&_ArticleListID=%3&count=10&md5=%4&JAVASCRIPT_ON=&format=cite&citation-type=RIS&RETURN_URL=http://www.sciencedirect.com/science/home" ).arg( m_account ).arg( m_userid ).arg( m_articleListID ).arg( m_md5 );
KURL url = KURL( "http://www.sciencedirect.com/science" );
TDEIO::TransferJob *job = TDEIO::http_post( url, data.utf8(), false );
job->addMetaData( "content-type", "Content-Type: application/x-www-form-urlencoded" );
connect( job, SIGNAL( data( TDEIO::Job *, const TQByteArray & ) ), this, SLOT( slotData( TDEIO::Job *, const TQByteArray & ) ) );
connect( job, SIGNAL( result( TDEIO::Job * ) ), this, SLOT( slotResult( TDEIO::Job * ) ) );
return true;
}
void WebQueryScienceDirect::slotData( TDEIO::Job *, const TQByteArray &data )
{
if ( data.size() > 0 )
m_incomingData.append( TQCString( data, data.size() + 1 ) );
}
void WebQueryScienceDirect::slotResult( TDEIO::Job *job )
{
if ( job->error() )
{
setEndSearch( WebQuery::statusError );
return;
}
BibTeX::FileImporterRIS importer;
TQBuffer buffer;
buffer.open( IO_WriteOnly );
TQTextStream ts( &buffer );
ts.setEncoding( TQTextStream::UnicodeUTF8 );
ts << m_incomingData << endl;
buffer.close();
buffer.open( IO_ReadOnly );
BibTeX::File *tmpBibFile = importer.load( &buffer );
buffer.close();
if ( tmpBibFile != NULL )
{
int count = m_widget->spinBoxMaxHits->value();
for ( BibTeX::File::ElementList::iterator it = tmpBibFile->begin(); count > 0 && it != tmpBibFile->end(); ++it )
{
BibTeX::Entry *entry = dynamic_cast<BibTeX::Entry*>( *it );
if ( entry != NULL )
{
emit foundEntry( new BibTeX::Entry( entry ), false );
--count;
}
}
delete tmpBibFile;
}
else
{
setEndSearch( WebQuery::statusError );
return;
}
setEndSearch( WebQuery::statusSuccess );
}
}
#include "webquerysciencedirect.moc"
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