diff options
Diffstat (limited to 'examples/network/infoprotocol/infourlclient/qip.cpp')
| -rw-r--r-- | examples/network/infoprotocol/infourlclient/qip.cpp | 132 |
1 files changed, 132 insertions, 0 deletions
diff --git a/examples/network/infoprotocol/infourlclient/qip.cpp b/examples/network/infoprotocol/infourlclient/qip.cpp new file mode 100644 index 0000000..ef71ea3 --- /dev/null +++ b/examples/network/infoprotocol/infourlclient/qip.cpp @@ -0,0 +1,132 @@ +/**************************************************************************** +** +** Copyright (C) 1992-2008 Trolltech ASA. All rights reserved. +** +** This file is part of an example program for Qt. This example +** program may be used, distributed and modified without limitation. +** +*****************************************************************************/ + +#include <qsocket.h> +#include <qurlinfo.h> +#include <qurloperator.h> +#include <qtextstream.h> + +#include "qip.h" + + +Qip::Qip() +{ + state = Start; + socket = new QSocket( this ); + connect( socket, SIGNAL(connected()), SLOT(socketConnected()) ); + connect( socket, SIGNAL(connectionClosed()), SLOT(socketConnectionClosed()) ); + connect( socket, SIGNAL(readyRead()), SLOT(socketReadyRead()) ); + connect( socket, SIGNAL(error(int)), SLOT(socketError(int)) ); +} + +int Qip::supportedOperations() const +{ + return OpListChildren | OpGet; +} + +bool Qip::checkConnection( QNetworkOperation * ) +{ + if ( socket->isOpen() ) + return TRUE; + + // don't call connectToHost() if we are already trying to connect + if ( socket->state() == QSocket::Connecting ) + return FALSE; + + socket->connectToHost( url()->host(), url()->port() != -1 ? url()->port() : infoPort ); + return FALSE; +} + +void Qip::operationListChildren( QNetworkOperation * ) +{ + QTextStream os(socket); + os << "LIST " + url()->path() + "\r\n"; + operationInProgress()->setState( StInProgress ); +} + +void Qip::operationGet( QNetworkOperation * ) +{ + QTextStream os(socket); + os << "GET " + url()->path() + "\r\n"; + operationInProgress()->setState( StInProgress ); +} + +void Qip::socketConnected() +{ + if ( url() ) + emit connectionStateChanged( ConConnected, tr( "Connected to host %1" ).arg( url()->host() ) ); + else + emit connectionStateChanged( ConConnected, tr ("Connected to host" ) ); +} + +void Qip::socketConnectionClosed() +{ + if ( url() ) + emit connectionStateChanged( ConClosed, tr( "Connection to %1 closed" ).arg( url()->host() ) ); + else + emit connectionStateChanged( ConClosed, tr ("Connection closed" ) ); +} + +void Qip::socketError( int code ) +{ + if ( code == QSocket::ErrHostNotFound || + code == QSocket::ErrConnectionRefused ) { + error( ErrHostNotFound, tr( "Host not found or couldn't connect to: %1\n" ).arg( url()->host() ) ); + } else + error( ErrUnsupported, tr( "Error" ) ); +} + +void Qip::socketReadyRead() +{ + // read from the server + QTextStream stream( socket ); + QString line; + while ( socket->canReadLine() ) { + line = stream.readLine(); + if ( line.startsWith( "500" ) ) { + error( ErrValid, line.mid( 4 ) ); + } else if ( line.startsWith( "550" ) ) { + error( ErrFileNotExisting, line.mid( 4 ) ); + } else if ( line.startsWith( "212+" ) ) { + if ( state != List ) { + state = List; + emit start( operationInProgress() ); + } + QUrlInfo inf; + inf.setName( line.mid( 6 ) + QString( ( line[ 4 ] == 'D' ) ? "/" : "" ) ); + inf.setDir( line[ 4 ] == 'D' ); + inf.setSymLink( FALSE ); + inf.setFile( line[ 4 ] == 'F' ); + inf.setWritable( FALSE ); + inf.setReadable( TRUE ); + emit newChild( inf, operationInProgress() ); + } else if ( line.startsWith( "213+" ) ) { + state = Data; + emit data( line.mid( 4 ).utf8(), operationInProgress() ); + } + if( line[3] == ' ' && state != Start) { + state = Start; + operationInProgress()->setState( StDone ); + emit finished( operationInProgress() ); + } + } +} + +void Qip::error( int code, const QString& msg ) +{ + if ( operationInProgress() ) { + operationInProgress()->setState( StFailed ); + operationInProgress()->setErrorCode( code ); + operationInProgress()->setProtocolDetail( msg ); + clearOperationQueue(); + emit finished( operationInProgress() ); + } + state = Start; +} + |