diff options
Diffstat (limited to 'libk3b/cddb/k3bcddbhttpquery.cpp')
| -rw-r--r-- | libk3b/cddb/k3bcddbhttpquery.cpp | 233 |
1 files changed, 233 insertions, 0 deletions
diff --git a/libk3b/cddb/k3bcddbhttpquery.cpp b/libk3b/cddb/k3bcddbhttpquery.cpp new file mode 100644 index 0000000..a453c3e --- /dev/null +++ b/libk3b/cddb/k3bcddbhttpquery.cpp @@ -0,0 +1,233 @@ +/* + * + * $Id: k3bcddbhttpquery.cpp 619556 2007-01-03 17:38:12Z trueg $ + * Copyright (C) 2003 Sebastian Trueg <trueg@k3b.org> + * + * This file is part of the K3b project. + * Copyright (C) 1998-2007 Sebastian Trueg <trueg@k3b.org> + * + * 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. + * See the file "COPYING" for the exact licensing terms. + */ + + + +#include "k3bcddbhttpquery.h" + +#include "k3bcddbresult.h" + +#include <qstringlist.h> +#include <qregexp.h> +#include <qtextstream.h> + +#include <klocale.h> +#include <kdebug.h> +#include <kio/global.h> +#include <kio/job.h> + + +K3bCddbHttpQuery::K3bCddbHttpQuery( QObject* parent, const char* name ) + : K3bCddbQuery( parent, name ) +{ + m_server = "freedb.org"; + m_port = 80; + m_cgiPath = "/~cddb/cddb.cgi"; +} + + +K3bCddbHttpQuery::~K3bCddbHttpQuery() +{ +} + + +void K3bCddbHttpQuery::doQuery() +{ + setError( WORKING ); + m_state = QUERY; + + performCommand( queryString() ); +} + + +void K3bCddbHttpQuery::doMatchQuery() +{ + setError( WORKING ); + m_state = READ; + m_parsingBuffer.truncate(0); + + performCommand( QString( "cddb read %1 %2").arg( header().category ).arg( header().discid ) ); +} + + +void K3bCddbHttpQuery::performCommand( const QString& cmd ) +{ + KURL url; + url.setProtocol( "http" ); + url.setHost( m_server ); + url.setPort( m_port ); + url.setPath( m_cgiPath ); + + url.addQueryItem( "cmd", cmd ); + url.addQueryItem( "hello", handshakeString() ); + url.addQueryItem( "proto", "6" ); + + m_data.truncate(0); + + kdDebug() << "(K3bCddbHttpQuery) getting url: " << url.prettyURL() << endl; + + KIO::TransferJob* job = KIO::get( url, false, false ); + + if( !job ) { + setError( CONNECTION_ERROR ); + emit infoMessage( i18n("Could not connect to host %1").arg(m_server) ); + emitQueryFinished(); + return; + } + + connect( job, SIGNAL(data(KIO::Job*, const QByteArray&)), + SLOT(slotData(KIO::Job*, const QByteArray&)) ); + connect( job, SIGNAL(result(KIO::Job*)), + SLOT(slotResult(KIO::Job*)) ); +} + + + +void K3bCddbHttpQuery::slotData( KIO::Job*, const QByteArray& data ) +{ + if( data.size() ) { + QDataStream stream( m_data, IO_WriteOnly | IO_Append ); + stream.writeRawBytes( data.data(), data.size() ); + } +} + + +void K3bCddbHttpQuery::slotResult( KIO::Job* job ) +{ + if( job->error() ) { + emit infoMessage( job->errorString() ); + setError( CONNECTION_ERROR ); + emitQueryFinished(); + return; + } + + QStringList lines = QStringList::split( "\n", QString::fromUtf8( m_data.data(), m_data.size() ) ); + + for( QStringList::const_iterator it = lines.begin(); it != lines.end(); ++it ) { + QString line = *it; + + // kdDebug() << "(K3bCddbHttpQuery) line: " << line << endl; + + switch( m_state ) { + + case QUERY: + if( getCode( line ) == 200 ) { + // parse exact match and send a read command + K3bCddbResultHeader header; + parseMatchHeader( line.mid(4), header ); + + queryMatch( header ); + } + + else if( getCode( line ) == 210 ) { + // TODO: perhaps add an "exact" field to K3bCddbEntry + kdDebug() << "(K3bCddbHttpQuery) Found multiple exact matches" << endl; + + emit infoMessage( i18n("Found multiple exact matches") ); + + m_state = QUERY_DATA; + } + + else if( getCode( line ) == 211 ) { + kdDebug() << "(K3bCddbHttpQuery) Found inexact matches" << endl; + + emit infoMessage( i18n("Found inexact matches") ); + + m_state = QUERY_DATA; + } + + else if( getCode( line ) == 202 ) { + kdDebug() << "(K3bCddbHttpQuery) no match found" << endl; + emit infoMessage( i18n("No match found") ); + setError(NO_ENTRY_FOUND); + m_state = FINISHED; + emitQueryFinished(); + return; + } + + else { + kdDebug() << "(K3bCddbHttpQuery) Error while querying: " << line << endl; + emit infoMessage( i18n("Error while querying") ); + setError(QUERY_ERROR); + m_state = FINISHED; + emitQueryFinished(); + return; + } + break; + + case QUERY_DATA: + if( line.startsWith( "." ) ) { + // finished query + // go on reading + + + // here we have the inexact matches headers and should emit the + // inexactMatches signal + emit inexactMatches( this ); + } + else { + kdDebug() << "(K3bCddbHttpQuery) inexact match: " << line << endl; + + // create a new resultHeader + K3bCddbResultHeader header; + parseMatchHeader( line, header ); + m_inexactMatches.append(header); + } + break; + + case READ: + if( getCode( line ) == 210 ) { + + // we just start parsing the read data + m_state = READ_DATA; + } + + else { + emit infoMessage( i18n("Could not read match") ); + setError(READ_ERROR); + m_state = FINISHED; + emitQueryFinished(); + return; + } + break; + + + case READ_DATA: + + // kdDebug() << "parsing line: " << line << endl; + + if( line.startsWith( "." ) ) { + + kdDebug() << "(K3bCddbHttpQuery query finished." << endl; + + QTextStream strStream( m_parsingBuffer, IO_ReadOnly ); + parseEntry( strStream, result() ); + + setError(SUCCESS); + m_state = FINISHED; + emitQueryFinished(); + return; + } + + else { + m_parsingBuffer.append(line + "\n"); + } + break; + } + } +} + + +#include "k3bcddbhttpquery.moc" |