| 1 | /****************************************************************************
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| 2 | ** $Id: qip.cpp 2 2005-11-16 15:49:26Z dmik $
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| 3 | **
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| 4 | ** Copyright (C) 1992-2002 Trolltech AS. All rights reserved.
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| 5 | **
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| 6 | ** This file is part of an example program for Qt. This example
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| 7 | ** program may be used, distributed and modified without limitation.
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| 8 | **
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| 9 | *****************************************************************************/
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| 10 |
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| 11 | #include <qsocket.h>
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| 12 | #include <qurlinfo.h>
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| 13 | #include <qurloperator.h>
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| 14 | #include <qtextstream.h>
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| 15 |
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| 16 | #include "qip.h"
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| 17 |
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| 18 |
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| 19 | Qip::Qip()
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| 20 | {
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| 21 | state = Start;
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| 22 | socket = new QSocket( this );
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| 23 | connect( socket, SIGNAL(connected()), SLOT(socketConnected()) );
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| 24 | connect( socket, SIGNAL(connectionClosed()), SLOT(socketConnectionClosed()) );
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| 25 | connect( socket, SIGNAL(readyRead()), SLOT(socketReadyRead()) );
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| 26 | connect( socket, SIGNAL(error(int)), SLOT(socketError(int)) );
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| 27 | }
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| 28 |
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| 29 | int Qip::supportedOperations() const
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| 30 | {
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| 31 | return OpListChildren | OpGet;
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| 32 | }
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| 33 |
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| 34 | bool Qip::checkConnection( QNetworkOperation * )
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| 35 | {
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| 36 | if ( socket->isOpen() )
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| 37 | return TRUE;
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| 38 |
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| 39 | // don't call connectToHost() if we are already trying to connect
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| 40 | if ( socket->state() == QSocket::Connecting )
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| 41 | return FALSE;
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| 42 |
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| 43 | socket->connectToHost( url()->host(), url()->port() != -1 ? url()->port() : infoPort );
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| 44 | return FALSE;
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| 45 | }
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| 46 |
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| 47 | void Qip::operationListChildren( QNetworkOperation * )
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| 48 | {
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| 49 | QTextStream os(socket);
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| 50 | os << "LIST " + url()->path() + "\r\n";
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| 51 | operationInProgress()->setState( StInProgress );
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| 52 | }
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| 53 |
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| 54 | void Qip::operationGet( QNetworkOperation * )
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| 55 | {
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| 56 | QTextStream os(socket);
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| 57 | os << "GET " + url()->path() + "\r\n";
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| 58 | operationInProgress()->setState( StInProgress );
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| 59 | }
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| 60 |
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| 61 | void Qip::socketConnected()
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| 62 | {
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| 63 | if ( url() )
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| 64 | emit connectionStateChanged( ConConnected, tr( "Connected to host %1" ).arg( url()->host() ) );
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| 65 | else
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| 66 | emit connectionStateChanged( ConConnected, tr ("Connected to host" ) );
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| 67 | }
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| 68 |
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| 69 | void Qip::socketConnectionClosed()
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| 70 | {
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| 71 | if ( url() )
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| 72 | emit connectionStateChanged( ConClosed, tr( "Connection to %1 closed" ).arg( url()->host() ) );
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| 73 | else
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| 74 | emit connectionStateChanged( ConClosed, tr ("Connection closed" ) );
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| 75 | }
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| 76 |
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| 77 | void Qip::socketError( int code )
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| 78 | {
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| 79 | if ( code == QSocket::ErrHostNotFound ||
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| 80 | code == QSocket::ErrConnectionRefused ) {
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| 81 | error( ErrHostNotFound, tr( "Host not found or couldn't connect to: %1\n" ).arg( url()->host() ) );
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| 82 | } else
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| 83 | error( ErrUnsupported, tr( "Error" ) );
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| 84 | }
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| 85 |
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| 86 | void Qip::socketReadyRead()
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| 87 | {
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| 88 | // read from the server
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| 89 | QTextStream stream( socket );
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| 90 | QString line;
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| 91 | while ( socket->canReadLine() ) {
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| 92 | line = stream.readLine();
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| 93 | if ( line.startsWith( "500" ) ) {
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| 94 | error( ErrValid, line.mid( 4 ) );
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| 95 | } else if ( line.startsWith( "550" ) ) {
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| 96 | error( ErrFileNotExisting, line.mid( 4 ) );
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| 97 | } else if ( line.startsWith( "212+" ) ) {
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| 98 | if ( state != List ) {
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| 99 | state = List;
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| 100 | emit start( operationInProgress() );
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| 101 | }
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| 102 | QUrlInfo inf;
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| 103 | inf.setName( line.mid( 6 ) + QString( ( line[ 4 ] == 'D' ) ? "/" : "" ) );
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| 104 | inf.setDir( line[ 4 ] == 'D' );
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| 105 | inf.setSymLink( FALSE );
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| 106 | inf.setFile( line[ 4 ] == 'F' );
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| 107 | inf.setWritable( FALSE );
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| 108 | inf.setReadable( TRUE );
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| 109 | emit newChild( inf, operationInProgress() );
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| 110 | } else if ( line.startsWith( "213+" ) ) {
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| 111 | state = Data;
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| 112 | emit data( line.mid( 4 ).utf8(), operationInProgress() );
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| 113 | }
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| 114 | if( line[3] == ' ' && state != Start) {
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| 115 | state = Start;
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| 116 | operationInProgress()->setState( StDone );
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| 117 | emit finished( operationInProgress() );
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| 118 | }
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| 119 | }
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| 120 | }
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| 121 |
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| 122 | void Qip::error( int code, const QString& msg )
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| 123 | {
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| 124 | if ( operationInProgress() ) {
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| 125 | operationInProgress()->setState( StFailed );
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| 126 | operationInProgress()->setErrorCode( code );
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| 127 | operationInProgress()->setProtocolDetail( msg );
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| 128 | clearOperationQueue();
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| 129 | emit finished( operationInProgress() );
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| 130 | }
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| 131 | state = Start;
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| 132 | }
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| 133 |
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