Added abandoned KDE3 version of K3B

git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/applications/k3b@1084400 283d02a7-25f6-0310-bc7c-ecb5cbfe19da

1 files changed, 278 insertions, 0 deletions

diff --git a/libk3b/cddb/k3bcddbpquery.cpp b/libk3b/cddb/k3bcddbpquery.cpp
new file mode 100644
index 0000000..fefc8e4
--- /dev/null
+++ b/libk3b/cddb/k3bcddbpquery.cpp
@@ -0,0 +1,278 @@
+/* 
+ *
+ * $Id: k3bcddbpquery.cpp 619556 2007-01-03 17:38:12Z trueg $
+ *
+ * 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 "k3bcddbpquery.h"
+
+#include <qstringlist.h>
+#include <qsocket.h>
+#include <qtextstream.h>
+
+#include <klocale.h>
+#include <kdebug.h>
+
+
+
+
+K3bCddbpQuery::K3bCddbpQuery( QObject* parent, const char* name )
+  :K3bCddbQuery( parent, name )
+{
+  m_socket = new QSocket( this );
+  m_stream.setDevice( m_socket );
+  m_stream.setEncoding( QTextStream::UnicodeUTF8 );
+
+  connect( m_socket, SIGNAL(connected()), this, SLOT(slotConnected()) );
+  connect( m_socket, SIGNAL(hostFound()), this, SLOT(slotHostFound()) );
+  connect( m_socket, SIGNAL(connectionClosed()), this, SLOT(slotConnectionClosed()) );
+  connect( m_socket, SIGNAL(error(int)), this, SLOT(slotError(int)) );
+  connect( m_socket, SIGNAL(readyRead()), this, SLOT(slotReadyRead()) );
+}
+
+
+K3bCddbpQuery::~K3bCddbpQuery()
+{
+  delete m_socket;
+}
+
+void K3bCddbpQuery::doQuery()
+{
+  setError( WORKING );
+
+  m_state = GREETING;
+
+  // connect to the server
+
+  m_socket->connectToHost( m_server, m_port );
+  emit infoMessage( i18n("Searching %1 on port %2").arg(m_server).arg(m_port) );
+}
+
+
+void K3bCddbpQuery::doMatchQuery()
+{
+  // we should still be connected
+  // TODO: check this
+
+  QString read = QString( "cddb read %1 %2").arg( header().category ).arg( header().discid );
+  
+  m_state = READ;
+  m_parsingBuffer = "";
+  
+  kdDebug() <<  "(K3bCddbpQuery) Read: " << read << endl;
+
+  m_stream << read << endl << flush;
+}
+
+
+void K3bCddbpQuery::slotHostFound()
+{
+  emit infoMessage( i18n("Host found") );
+}
+
+
+void K3bCddbpQuery::slotConnected()
+{
+  emit infoMessage( i18n("Connected") );
+}
+
+
+void K3bCddbpQuery::slotConnectionClosed()
+{
+  emit infoMessage( i18n("Connection closed") );
+  emitQueryFinished();
+}
+
+
+void K3bCddbpQuery::cddbpQuit()
+{
+  m_state = QUIT;
+  m_stream << "quit" << endl << flush;
+}
+
+
+void K3bCddbpQuery::slotReadyRead()
+{
+  while( m_socket->canReadLine() ) {
+    QString line = m_stream.readLine();
+
+    //    kdDebug() << "(K3bCddbpQuery) line: " << line << endl;
+
+    switch( m_state ) {
+    case GREETING:
+      if( getCode( line ) == 200 || getCode( line ) == 201) {
+	emit infoMessage( i18n("OK, read access") );
+	m_state = HANDSHAKE;
+
+	m_stream << "cddb hello " << handshakeString() << endl << flush;
+      }
+
+      else {
+	emit infoMessage( i18n("Connection refused") );
+	setError( CONNECTION_ERROR );
+	m_socket->close();
+      }
+      break;
+
+    case HANDSHAKE:
+      if( getCode( line ) == 200 ) {
+	emit infoMessage( i18n("Handshake successful") );
+
+	m_state = PROTO;
+
+	m_stream << "proto 6" << endl << flush;
+      }
+
+      else {
+	emit infoMessage( i18n("Handshake failed") );  // server closes connection
+	setError( CONNECTION_ERROR );
+	m_socket->close(); // just to be sure
+      }
+      break;
+
+    case PROTO:
+      {
+	if( getCode( line ) == 501 ) {
+	  kdDebug() << "(K3bCddbpQuery) illigal protocol level!" << endl;
+	}
+	
+	// just ignore the reply since it's not important for the functionality
+	m_state = QUERY;
+	
+	m_stream << queryString() << endl << flush;
+	break;
+      }
+
+    case QUERY:
+      if( getCode( line ) == 200 ) {
+	// parse exact match and send a read command
+	K3bCddbResultHeader header;
+	parseMatchHeader( line.mid( 4 ), header );
+
+	emit infoMessage( i18n("Found exact match") );
+
+	queryMatch( header );
+      }
+
+      else if( getCode( line ) == 210 ) {
+	// TODO: perhaps add an "exact" field to K3bCddbEntry
+	kdDebug() << "(K3bCddbpQuery) Found multiple exact matches" << endl;
+
+	emit infoMessage( i18n("Found multiple exact matches") );
+
+	m_state = QUERY_DATA;
+      }
+
+      else if( getCode( line ) == 211 ) {
+	kdDebug() << "(K3bCddbpQuery) Found inexact matches" << endl;
+
+	emit infoMessage( i18n("Found inexact matches") );
+
+	m_state = QUERY_DATA;
+      }
+
+      else if( getCode( line ) == 202 ) {
+	kdDebug() << "(K3bCddbpQuery) no match found" << endl;
+	emit infoMessage( i18n("No match found") );
+	setError( NO_ENTRY_FOUND );
+	cddbpQuit();
+      }
+
+      else {
+	kdDebug() << "(K3bCddbpQuery) Error while querying: " << line << endl;
+	emit infoMessage( i18n("Error while querying") );
+	setError( QUERY_ERROR );
+	cddbpQuit();
+      }
+      break;
+
+    case QUERY_DATA:
+      if( line.startsWith( "." ) ) {
+	// finished query
+	// go on reading
+
+	emit inexactMatches( this );
+	return;
+      }
+      else {
+	kdDebug() << "(K3bCddbpQuery) inexact match: " << line << endl;
+	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 );
+	cddbpQuit();
+      }
+      break;
+    
+
+    case READ_DATA:
+
+      //      kdDebug() << "(K3bCddbpQuery) parsing line: " << line << endl;
+
+      if( line.startsWith( "." ) ) {
+	
+	kdDebug() << "(K3bCddbpQuery) query finished." << endl;
+
+	QTextStream strStream( m_parsingBuffer, IO_ReadOnly );
+	parseEntry( strStream, result() );
+
+	setError( SUCCESS );
+	cddbpQuit();
+      }
+
+      else {
+	m_parsingBuffer.append(line + "\n");
+      }
+      break;
+
+    case QUIT:
+      // no parsing needed
+      break;
+    }
+  }
+}
+
+
+void K3bCddbpQuery::slotError( int e )
+{
+  switch(e) {
+  case QSocket::ErrConnectionRefused:
+    kdDebug() <<  i18n("Connection to %1 refused").arg( m_server ) << endl;
+    emit infoMessage( i18n("Connection to %1 refused").arg( m_server ) );
+    break;
+  case QSocket::ErrHostNotFound:
+    kdDebug() <<  i18n("Could not find host %1").arg( m_server ) << endl;
+    emit infoMessage( i18n("Could not find host %1").arg( m_server ) );
+    break;
+  case QSocket::ErrSocketRead:
+    kdDebug() <<  i18n("Error while reading from %1").arg( m_server ) << endl;
+    emit infoMessage( i18n("Error while reading from %1").arg( m_server ) );
+    break;
+  }
+
+  m_socket->close();
+  emitQueryFinished();
+}
+
+#include "k3bcddbpquery.moc"