1 files changed, 3 insertions, 1 deletions

diff --git a/core/launcher/transferserver.cpp b/core/launcher/transferserver.cpp
index eea9f3a..9519d11 100644
--- a/core/launcher/transferserver.cpp
+++ b/core/launcher/transferserver.cpp
@@ -1,732 +1,734 @@
 /**********************************************************************
 ** Copyright (C) 2000-2002 Trolltech AS.  All rights reserved.
 **
 ** This file is part of the Qtopia Environment.
 **
 ** This file may be distributed and/or modified under the terms of the
 ** GNU General Public License version 2 as published by the Free Software
 ** Foundation and appearing in the file LICENSE.GPL included in the
 ** packaging of this file.
 **
 ** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
 ** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
 **
 ** See http://www.trolltech.com/gpl/ for GPL licensing information.
 **
 ** Contact info@trolltech.com if any conditions of this licensing are
 ** not clear to you.
 **
 **********************************************************************/
 //#define _XOPEN_SOURCE
 
 #include <qtopia/global.h>
 #include <qtopia/qpeapplication.h>
 
 #ifndef Q_OS_WIN32
 #include <pwd.h>
 #include <sys/types.h>
 #include <unistd.h>
 #include <stdlib.h>
 #include <time.h>
 
 #ifndef Q_OS_MACX
 #include <shadow.h>
 #include <crypt.h>
 #endif /* Q_OS_MACX */ 
 
 #else
 #include <stdlib.h>
 #include <time.h>
 #endif
 
 
 #if defined(_OS_LINUX_)
 #include <shadow.h>
 #endif
 
 #include <qdir.h>
 #include <qfile.h>
 #include <qtextstream.h>
 #include <qdatastream.h>
 #include <qmessagebox.h>
 #include <qstringlist.h>
 #include <qfileinfo.h>
 #include <qregexp.h>
 //#include <qtopia/qcopchannel_qws.h>
 #include <qtopia/process.h>
 #include <qtopia/global.h>
 #include <qtopia/config.h>
 #include <qtopia/private/contact.h>
 #include <qtopia/quuid.h>
 #include <qtopia/version.h>
 #ifdef Q_WS_QWS
 #include <qtopia/qcopenvelope_qws.h>
 #endif
 
 #include "launcherglobal.h"
 
 #include "transferserver.h"
 #include <qtopia/qprocess.h>
 
 const int block_size = 51200;
 
 TransferServer::TransferServer( Q_UINT16 port, QObject *parent,
         const char* name)
     : QServerSocket( port, 1, parent, name )
 {
     connections.setAutoDelete( TRUE );
     if ( !ok() )
         qWarning( "Failed to bind to port %d", port );
 }
 
 void TransferServer::authorizeConnections()
 {
     QListIterator<ServerPI> it(connections);
     while ( it.current() ) {
         if ( !it.current()->verifyAuthorised() ) {
             disconnect( it.current(), SIGNAL(connectionClosed(ServerPI *)), this, SLOT( closed(ServerPI *)) );
             connections.removeRef( it.current() );
         } else
             ++it;
     }
 }
 
 void TransferServer::closed(ServerPI *item)
 {
     connections.removeRef(item);
 }
 
 TransferServer::~TransferServer()
 {
 }
 
 void TransferServer::newConnection( int socket )
 {
     ServerPI *ptr = new ServerPI( socket, this );
     connect( ptr, SIGNAL(connectionClosed(ServerPI *)), this, SLOT( closed(ServerPI *)) );
     connections.append( ptr );
 }
 
 QString SyncAuthentication::serverId()
 {
     Config cfg("Security");
     cfg.setGroup("Sync");
     QString r = cfg.readEntry("serverid");
 
     if ( r.isEmpty() ) {
         r = Opie::Global::uuid();
         cfg.writeEntry("serverid", r );
     }
    return r;
 }
 
 QString SyncAuthentication::ownerName()
 {
     QString vfilename = Global::applicationFileName("addressbook",
                 "businesscard.vcf");
     if (QFile::exists(vfilename)) {
         Contact c;
         c = Contact::readVCard( vfilename )[0];
         return c.fullName();
     }
 
     return QString::null;
 }
 
 QString SyncAuthentication::loginName()
 {
     struct passwd *pw = 0L;
 #ifndef Q_OS_WIN32
     pw = getpwuid( geteuid() );
     return QString::fromLocal8Bit( pw->pw_name );
 #else
     //### revise
     return QString();
 #endif
 }
 
 int SyncAuthentication::isAuthorized(QHostAddress peeraddress)
 {
     Config cfg("Security");
         cfg.setGroup("Sync");
         //    QString allowedstr = cfg.readEntry("auth_peer","192.168.1.0");
         uint auth_peer = cfg.readNumEntry("auth_peer", 0xc0a80100);
 
         //    QHostAddress allowed;
         //    allowed.setAddress(allowedstr);
         //    uint auth_peer = allowed.ip4Addr();
         uint auth_peer_bits = cfg.readNumEntry("auth_peer_bits", 24);
         uint mask = auth_peer_bits >= 32 // shifting by 32 is not defined
                     ? 0xffffffff : (((1 << auth_peer_bits) - 1) << (32 - auth_peer_bits));
 
         return (peeraddress.ip4Addr() & mask) == auth_peer;
 }
 
 bool SyncAuthentication::checkUser( const QString& user )
 {
     if ( user.isEmpty() ) return FALSE;
     QString euser = loginName();
     return user == euser;
 }
 
 bool SyncAuthentication::checkPassword( const QString& password )
 {
 #ifdef ALLOW_UNIX_USER_FTP
     // First, check system password...
 
     struct passwd *pw = 0;
     struct spwd *spw = 0;
 
     pw = getpwuid( geteuid() );
     spw = getspnam( pw->pw_name );
 
     QString cpwd = QString::fromLocal8Bit( pw->pw_passwd );
     if ( cpwd == "x" && spw )
         cpwd = QString::fromLocal8Bit( spw->sp_pwdp );
 
     // Note: some systems use more than crypt for passwords.
     QString cpassword = QString::fromLocal8Bit( crypt( password.local8Bit(), cpwd.local8Bit() ) );
     if ( cpwd == cpassword )
         return TRUE;
 #endif
 
     static int lastdenial=0;
     static int denials=0;
     int now = time(0);
  
     Config cfg("Security");
     cfg.setGroup("Sync");    
     QString syncapp = cfg.readEntry("syncapp","Qtopia");
     
     //No password needed if the user really wants it
     if (syncapp == "IntelliSync") {
             return TRUE;
             }
       
     // Detect old Qtopia Desktop (no password)
             if ( password.isEmpty() ) {
                 if ( denials < 3 || now > lastdenial+600 ) {
                     QMessageBox unauth(
                         tr("Sync Connection"),
                         tr("<p>An unauthorized system is requesting access to this device."
                             "<p>If you are using a version of Qtopia Desktop older than 1.5.1, "
                             "please upgrade or change the security setting to use IntelliSync." ),
                         QMessageBox::Warning,
                         QMessageBox::Cancel, QMessageBox::NoButton, QMessageBox::NoButton,
                         0, QString::null, TRUE, WStyle_StaysOnTop);
                     unauth.setButtonText(QMessageBox::Cancel, tr("Deny"));
                     unauth.exec();
 
                     denials++;
                     lastdenial=now;
                  } 
                 return FALSE;
            
     } 
 
     // Second, check sync password...
 
     static int lock=0;
     if ( lock ) return FALSE;
 
     ++lock;    
 
     /*
      *  we need to support old Sync software and QtopiaDesktop
      */
     if ( password.left(6) == "Qtopia" || password.left(6) == "rootme" ) {
         Config cfg( "Security" );
         cfg.setGroup("Sync");
         QStringList pwds = cfg.readListEntry("Passwords",' ');
         for (QStringList::ConstIterator it=pwds.begin(); it!=pwds.end(); ++it) {
 #ifndef Q_OS_WIN32
             QString cpassword = QString::fromLocal8Bit(
                 crypt( password.mid(8).local8Bit(), (*it).left(2).latin1() ) );
 #else
             // ### revise
             QString cpassword("");
 #endif
             if ( *it == cpassword ) {
                 lock--;
                 return TRUE;
             }
         }
 
         // Unrecognized system. Be careful...
         QMessageBox unrecbox(
             tr("Sync Connection"),
                     tr("<p>An unrecognized system is requesting access to this device."
                 "<p>If you have just initiated a Sync for the first time, this is normal."),
                 QMessageBox::Warning,
                 QMessageBox::Cancel, QMessageBox::Yes, QMessageBox::NoButton,
                 0, QString::null, TRUE, WStyle_StaysOnTop);
         unrecbox.setButtonText(QMessageBox::Cancel, tr("Deny"));
         unrecbox.setButtonText(QMessageBox::Yes, tr("Allow"));
 
         if ( (denials > 2 && now < lastdenial+600)
             || unrecbox.exec() != QMessageBox::Yes)
         {
             denials++;
             lastdenial=now;
             lock--;
             return FALSE;
         } else {
             const char salty[]="abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789/.";
             char salt[2];
             salt[0]= salty[rand() % (sizeof(salty)-1)];
             salt[1]= salty[rand() % (sizeof(salty)-1)];
 #ifndef Q_OS_WIN32
             QString cpassword = QString::fromLocal8Bit(
                 crypt( password.mid(8).local8Bit(), salt ) );
 #else
             //### revise
             QString cpassword("");
 #endif
             denials=0;
             pwds.prepend(cpassword);
             cfg.writeEntry("Passwords",pwds,' ');
             lock--;
             return TRUE;
         }
     }
     lock--;
 
     return FALSE;
 }
 
 
 ServerPI::ServerPI( int socket, QObject *parent, const char* name )
     : QSocket( parent, name ) , dtp( 0 ), serversocket( 0 ), waitsocket( 0 ),
       storFileSize(-1)
 {
     state = Connected;
 
     setSocket( socket );
 
     peerport = peerPort();
     peeraddress = peerAddress();
 
 #ifndef INSECURE
     if ( !SyncAuthentication::isAuthorized(peeraddress) ) {
         state = Forbidden;
         startTimer( 0 );
     } else
 #endif
     {
         connect( this, SIGNAL( readyRead() ), SLOT( read() ) );
         connect( this, SIGNAL( connectionClosed() ), SLOT( connectionClosed() ) );
 
         passiv = FALSE;
         for( int i = 0; i < 4; i++ )
             wait[i] = FALSE;
 
         send( "220 Qtopia " QPE_VERSION " FTP Server" ); // No tr
         state = Wait_USER;
 
         dtp = new ServerDTP( this );
         connect( dtp, SIGNAL( completed() ), SLOT( dtpCompleted() ) );
         connect( dtp, SIGNAL( failed() ), SLOT( dtpFailed() ) );
         connect( dtp, SIGNAL( error( int ) ), SLOT( dtpError( int ) ) );
 
 
         directory = QDir::currentDirPath();
 
         static int p = 1024;
 
         while ( !serversocket || !serversocket->ok() ) {
             delete serversocket;
             serversocket = new ServerSocket( ++p, this );
         }
         connect( serversocket, SIGNAL( newIncomming( int ) ),
                  SLOT( newConnection( int ) ) );
     }
 }
 
 ServerPI::~ServerPI()
 {
     close();
-    dtp->close();
+
+    if ( dtp )
+        dtp->close();
     delete dtp;
     delete serversocket;
 }
 
 bool ServerPI::verifyAuthorised()
 {
     if ( !SyncAuthentication::isAuthorized(peerAddress()) ) {
         state = Forbidden;
         return FALSE;
     }
     return TRUE;
 }
 
 void ServerPI::connectionClosed()
 {
     // qDebug( "Debug: Connection closed" );
     emit connectionClosed(this);
 }
 
 void ServerPI::send( const QString& msg )
 {
     QTextStream os( this );
     os << msg << endl;
     //qDebug( "Reply: %s", msg.latin1() );
 }
 
 void ServerPI::read()
 {
     while ( canReadLine() )
         process( readLine().stripWhiteSpace() );
 }
 
 bool ServerPI::checkReadFile( const QString& file )
 {
     QString filename;
 
     if ( file[0] != "/" )
         filename = directory.path() + "/" + file;
     else
         filename = file;
 
     QFileInfo fi( filename );
     return ( fi.exists() && fi.isReadable() );
 }
 
 bool ServerPI::checkWriteFile( const QString& file )
 {
     QString filename;
 
     if ( file[0] != "/" )
         filename = directory.path() + "/" + file;
     else
         filename = file;
 
     QFileInfo fi( filename );
 
     if ( fi.exists() )
         if ( !QFile( filename ).remove() )
             return FALSE;
     return TRUE;
 }
 
 void ServerPI::process( const QString& message )
 {
     //qDebug( "Command: %s", message.latin1() );
 
     // split message using "," as separator
     QStringList msg = QStringList::split( " ", message );
     if ( msg.isEmpty() ) return;
 
     // command token
     QString cmd = msg[0].upper();
 
     // argument token
     QString arg;
     if ( msg.count() >= 2 )
         arg = msg[1];
 
     // full argument string
     QString args;
     if ( msg.count() >= 2 ) {
         QStringList copy( msg );
         // FIXME: for Qt3
         // copy.pop_front()
         copy.remove( copy.begin() );
         args = copy.join( " " );
     }
 
     //qDebug( "args: %s", args.latin1() );
 
     // we always respond to QUIT, regardless of state
     if ( cmd == "QUIT" ) {
         send( "211 Good bye!" ); // No tr
         close();
         return;
     }
 
     // connected to client
     if ( Connected == state )
         return;
 
     // waiting for user name
     if ( Wait_USER == state ) {
 
         if ( cmd != "USER" || msg.count() < 2 || !SyncAuthentication::checkUser( arg ) ) {
             send( "530 Please login with USER and PASS" ); // No tr
             return;
         }
         send( "331 User name ok, need password" ); // No tr
         state = Wait_PASS;
         return;
     }
 
     // waiting for password
     if ( Wait_PASS == state ) {
 
         if ( cmd != "PASS" || !SyncAuthentication::checkPassword( arg ) ) {
             send( "530 Please login with USER and PASS" ); // No tr
             return;
         }
         send( "230 User logged in, proceed" ); // No tr
         state = Ready;
         return;
     }
 
     // ACCESS CONTROL COMMANDS
 
     // Only an ALLO sent immediately before STOR is valid.
     if ( cmd != "STOR" )
         storFileSize = -1;
 
     // account (ACCT)
     if ( cmd == "ACCT" ) {
         // even wu-ftp does not support it
         send( "502 Command not implemented" ); // No tr
     }
 
     // change working directory (CWD)
     else if ( cmd == "CWD" ) {
 
         if ( !args.isEmpty() ) {
             if ( directory.cd( args, TRUE ) )
                 send( "250 Requested file action okay, completed" ); // No tr
             else
                 send( "550 Requested action not taken" ); // No tr
         }
         else
             send( "500 Syntax error, command unrecognized" ); // No tr
     }
 
     // change to parent directory (CDUP)
     else if ( cmd == "CDUP" ) {
         if ( directory.cdUp() )
             send( "250 Requested file action okay, completed" ); // No tr
         else
             send( "550 Requested action not taken" ); // No tr
     }
 
     // structure mount (SMNT)
     else if ( cmd == "SMNT" ) {
         // even wu-ftp does not support it
         send( "502 Command not implemented" ); // No tr
     }
 
     // reinitialize (REIN)
     else if ( cmd == "REIN" ) {
         // even wu-ftp does not support it
         send( "502 Command not implemented" ); // No tr
     }
 
 
     // TRANSFER PARAMETER COMMANDS
 
 
     // data port (PORT)
     else if ( cmd == "PORT" ) {
         if ( parsePort( arg ) )
             send( "200 Command okay" ); // No tr
         else
             send( "500 Syntax error, command unrecognized" ); // No tr
     }
 
     // passive (PASV)
     else if ( cmd == "PASV" ) {
         passiv = TRUE;
         send( "227 Entering Passive Mode (" // No tr
               + address().toString().replace( QRegExp( "\\." ), "," ) + ","
               + QString::number( ( serversocket->port() ) >> 8 ) + ","
               + QString::number( ( serversocket->port() ) & 0xFF ) +")" );
     }
 
     // representation type (TYPE)
     else if ( cmd == "TYPE" ) {
         if ( arg.upper() == "A" || arg.upper() == "I" )
             send( "200 Command okay" ); // No tr
         else
             send( "504 Command not implemented for that parameter" ); // No tr
     }
 
     // file structure (STRU)
     else if ( cmd == "STRU" ) {
         if ( arg.upper() == "F" )
             send( "200 Command okay" ); // No tr
         else
             send( "504 Command not implemented for that parameter" ); // No tr
     }
 
     // transfer mode (MODE)
     else if ( cmd == "MODE" ) {
         if ( arg.upper() == "S" )
             send( "200 Command okay" ); // No tr
         else
             send( "504 Command not implemented for that parameter" ); // No tr
     }
 
 
     // FTP SERVICE COMMANDS
 
 
     // retrieve (RETR)
     else if ( cmd == "RETR" )
         if ( !args.isEmpty() && checkReadFile( absFilePath( args ) )
              || backupRestoreGzip( absFilePath( args ) ) ) {
             send( "150 File status okay" ); // No tr
             sendFile( absFilePath( args ) );
         }
         else {
             qDebug("550 Requested action not taken");
             send( "550 Requested action not taken" ); // No tr
         }
 
     // store (STOR)
     else if ( cmd == "STOR" )
         if ( !args.isEmpty() && checkWriteFile( absFilePath( args ) ) ) {
             send( "150 File status okay" ); // No tr
             retrieveFile( absFilePath( args ) );
         }
         else
             send( "550 Requested action not taken" ); // No tr
 
     // store unique (STOU)
     else if ( cmd == "STOU" ) {
         send( "502 Command not implemented" ); // No tr
     }
 
     // append (APPE)
     else if ( cmd == "APPE" ) {
         send( "502 Command not implemented" ); // No tr
     }
 
     // allocate (ALLO)
     else if ( cmd == "ALLO" ) {
         storFileSize = args.toInt();
         send( "200 Command okay" ); // No tr
     }
 
     // restart (REST)
     else if ( cmd == "REST" ) {
         send( "502 Command not implemented" ); // No tr
     }
 
     // rename from (RNFR)
     else if ( cmd == "RNFR" ) {
         renameFrom = QString::null;
         if ( args.isEmpty() )
             send( "500 Syntax error, command unrecognized" ); // No tr
         else {
             QFile file( absFilePath( args ) );
             if ( file.exists() ) {
                 send( "350 File exists, ready for destination name" ); // No tr
                 renameFrom = absFilePath( args );
             }
             else
                 send( "550 Requested action not taken" ); // No tr
         }
     }
 
     // rename to (RNTO)
     else if ( cmd == "RNTO" ) {
         if ( lastCommand != "RNFR" )
             send( "503 Bad sequence of commands" ); // No tr
         else if ( args.isEmpty() )
             send( "500 Syntax error, command unrecognized" ); // No tr
         else {
             QDir dir( absFilePath( args ) );
             if ( dir.rename( renameFrom, absFilePath( args ), TRUE ) )
                 send( "250 Requested file action okay, completed." ); // No tr
             else
                 send( "550 Requested action not taken" ); // No tr
         }
     }
 
     // abort (ABOR)
     else if ( cmd.contains( "ABOR" ) ) {
         dtp->close();
         if ( dtp->dtpMode() != ServerDTP::Idle )
             send( "426 Connection closed; transfer aborted" ); // No tr
         else
             send( "226 Closing data connection" ); // No tr
     }
 
     // delete (DELE)
     else if ( cmd == "DELE" ) {
         if ( args.isEmpty() )
             send( "500 Syntax error, command unrecognized" ); // No tr
         else {
             QFile file( absFilePath( args ) ) ;
             if ( file.remove() ) {
                 send( "250 Requested file action okay, completed" ); // No tr
                 QCopEnvelope e("QPE/System", "linkChanged(QString)" );
                 e << file.name();
             } else {
                 send( "550 Requested action not taken" ); // No tr
             }
         }
     }
 
     // remove directory (RMD)
     else if ( cmd == "RMD" ) {
         if ( args.isEmpty() )
             send( "500 Syntax error, command unrecognized" ); // No tr
         else {
             QDir dir;
             if ( dir.rmdir( absFilePath( args ), TRUE ) )
                 send( "250 Requested file action okay, completed" ); // No tr
             else
                 send( "550 Requested action not taken" ); // No tr
         }
     }
 
     // make directory (MKD)
     else if ( cmd == "MKD" ) {
         if ( args.isEmpty() ) {
             qDebug(" Error: no arg");
             send( "500 Syntax error, command unrecognized" ); // No tr
         }
         else {
             QDir dir;
             if ( dir.mkdir( absFilePath( args ), TRUE ) )
                 send( "250 Requested file action okay, completed." ); // No tr
             else
                 send( "550 Requested action not taken" ); // No tr
         }
     }
 
     // print working directory (PWD)
     else if ( cmd == "PWD" ) {
         send( "257 \"" + directory.path() +"\"" );
     }
 
     // list (LIST)
     else if ( cmd == "LIST" ) {
         if ( sendList( absFilePath( args ) ) )
             send( "150 File status okay" ); // No tr
         else
             send( "500 Syntax error, command unrecognized" ); // No tr
     }
 
     // size (SIZE)
     else if ( cmd == "SIZE" ) {
         QString filePath = absFilePath( args );
         QFileInfo fi( filePath );
         bool gzipfile = backupRestoreGzip( filePath );
         if ( !fi.exists() && !gzipfile )
             send( "500 Syntax error, command unrecognized" ); // No tr
         else {
             if ( !gzipfile )
                 send( "213 " + QString::number( fi.size() ) );
             else {
                 Process duproc( QString("du") );
                 duproc.addArgument("-s");
                 QString in, out;
                 if ( !duproc.exec(in, out) ) {
                     qDebug("du process failed; just sending back 1K");
                     send( "213 1024");
                 }
                 else {
                     QString size = out.left( out.find("\t") );
                     int guess = size.toInt()/5;
                     if ( filePath.contains("doc") ) // No tr
                         guess *= 1000;
                     qDebug("sending back gzip guess of %d", guess);
                     send( "213 " + QString::number(guess) );
                 }