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path: root/kopete/protocols/msn/msnswitchboardsocket.cpp
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/*
    msnswitchboardsocket.cpp - switch board connection socket

    Copyright (c) 2002      by Martijn Klingens       <klingens@kde.org>
    Copyright (c) 2002-2006 by Olivier Goffart        <ogoffart@ kde.org>
    Kopete    (c) 2002-2005 by the Kopete developers  <kopete-devel@kde.org>

    Portions of this code are taken from KMerlin,
              (c) 2001 by Olaf Lueg              <olueg@olsd.de>

    *************************************************************************
    *                                                                       *
    * 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.                                   *
    *                                                                       *
    *************************************************************************
*/


#include "msnswitchboardsocket.h"

#include <stdlib.h>
#include <time.h>
#include <cmath>

// qt
#include <tqstylesheet.h>
#include <tqregexp.h>
#include <tqimage.h>
#include <tqtimer.h>
#include <tqfile.h>
#include <tqfileinfo.h>

// kde
#include <kdebug.h>
#include <kmessagebox.h>
#include <kapplication.h>
#include <kaboutdata.h>
#include <ktempfile.h>
#include <kconfig.h>
#include <kmdcodec.h>
#include <kstandarddirs.h>
#include <ktempfile.h>

// for the display picture
#include <msncontact.h>
#include "msnnotifysocket.h"

//kopete
#include "msnaccount.h"
#include "msnprotocol.h"
#include "kopetemessage.h"
#include "kopetecontact.h"
#include "kopeteuiglobal.h"
#include "kopeteemoticons.h"
//#include "kopeteaccountmanager.h"
//#include "kopeteprotocol.h"

#include "sha1.h"

#include "dispatcher.h"
using P2P::Dispatcher;

MSNSwitchBoardSocket::MSNSwitchBoardSocket( MSNAccount *account , TQObject *parent )
: MSNSocket( parent )
{
	m_account = account;
	m_recvIcons=0;
	m_emoticonTimer=0L;
	m_chunks=0;
	m_clientcapsSent=false;
	m_dispatcher = 0l;
	m_keepAlive = 0l;
	m_keepAliveNb=0;
}

MSNSwitchBoardSocket::~MSNSwitchBoardSocket()
{
	kdDebug(14140) << k_funcinfo << endl;

	TQMap<TQString , TQPair<TQString , KTempFile*> >::Iterator it;
	for ( it = m_emoticons.begin(); it != m_emoticons.end(); ++it )
	{
		delete it.data().second;
	}
}

void MSNSwitchBoardSocket::connectToSwitchBoard(TQString ID, TQString address, TQString auth)
{
	// we need these for the handshake later on (when we're connected)
	m_ID = ID;
	m_auth = auth;

	TQString server = address.left( address.find( ":" ) );
	uint port = address.right( address.length() - address.findRev( ":" ) - 1 ).toUInt();

	TQObject::connect( this, TQT_SIGNAL( blockRead( const TQByteArray & ) ),
		this, TQT_SLOT(slotReadMessage( const TQByteArray & ) ) );

	TQObject::connect( this, TQT_SIGNAL( onlineStatusChanged( MSNSocket::OnlineStatus ) ),
		this, TQT_SLOT( slotOnlineStatusChanged( MSNSocket::OnlineStatus ) ) );

	TQObject::connect( this, TQT_SIGNAL( socketClosed( ) ),
		this, TQT_SLOT( slotSocketClosed( ) ) );

	connect( server, port );
}

void MSNSwitchBoardSocket::handleError( uint code, uint id )
{
	kdDebug(14140) << k_funcinfo << endl;

	TQString msg;
	MSNSocket::ErrorType type;

	switch( code )
	{
		case 208:
		{
			msg = i18n( "Invalid user:\n"
				"this MSN user does not exist; please check the MSN ID." );
			type = MSNSocket::ErrorServerError;

			userLeftChat(m_msgHandle , i18n("user never joined"));
			break;
		}
		case 215:
		{
			msg = i18n( "The user %1 is already in this chat." ).arg( m_msgHandle );
			type = MSNSocket::ErrorServerError;

			//userLeftChat(m_msgHandle , i18n("user was twice in this chat") ); //(the user shouln't join there
			break;
		}
		case 216:
		{
			msg = i18n( "The user %1 is online but has blocked you:\nyou can not talk to this user." ).arg( m_msgHandle );
			type = MSNSocket::ErrorInformation;

			userLeftChat(m_msgHandle, i18n("user blocked you"));
			break;
		}
		case 217:
		{
			// TODO: we need to know the nickname instead of the handle.
			msg = i18n( "The user %1 is currently not signed in.\n" "Messages will not be delivered." ).arg( m_msgHandle );
			type = MSNSocket::ErrorServerError;

			userLeftChat(m_msgHandle, i18n("user disconnected"));
			break;
		}
		case 713:
		{
			TQString msg = i18n( "You are trying to invite too many contacts to this chat at the same time" ).arg( m_msgHandle );
			type = MSNSocket::ErrorInformation;

			userLeftChat(m_msgHandle, i18n("user blocked you"));
			break;
		}
		case 911:
		{
			msg = i18n("Kopete MSN plugin has trouble authenticating with switchboard server.");
			type = MSNSocket::ErrorServerError;

			break;
		}
		default:
			MSNSocket::handleError( code, id );
			break;
	}

	if( !msg.isEmpty() )
		emit errorMessage( type, msg );
}

void MSNSwitchBoardSocket::parseCommand( const TQString &cmd, uint  id ,
	const TQString &data )
{
	if( cmd == "NAK" )
	{
		emit msgAcknowledgement(id, false);    // msg was not accepted
	}
	else if( cmd == "ACK" )
	{
		emit msgAcknowledgement(id, true);   // msg has received
	}
	else if( cmd == "JOI" )
	{
		// new user joins the chat, update user in chat list
		TQString handle = data.section( ' ', 0, 0 );
		TQString screenname = unescape(data.section( ' ', 1, 1 ));
		if( !m_chatMembers.contains( handle ) )
			m_chatMembers.append( handle );
		emit userJoined( handle, screenname, false );
	}
	else if( cmd == "IRO" )
	{
		// we have joined a multi chat session- this are the users in this chat
		TQString handle = data.section( ' ', 2, 2 );
		if( !m_chatMembers.contains( handle ) )
			m_chatMembers.append( handle );

		TQString screenname = unescape(data.section( ' ', 3, 3));
		emit userJoined( handle, screenname, true );
	}
	else if( cmd == "USR" )
	{
		slotInviteContact(m_msgHandle);
	}
	else if( cmd == "BYE" )
	{
		// some has disconnect from chat, update user in chat list
		cleanQueue(); //in case some message are waiting their emoticons, never mind, send them

		TQString handle = data.section( ' ', 0, 0 ).replace( "\r\n" , "" );
		userLeftChat( handle,  (data.section( ' ', 1, 1 ) == "1" ) ? i18n("timeout") : TQString()   );
	}
	else if( cmd == "MSG" )
	{
		TQString len = data.section( ' ', 2, 2 );

		// we need to know who's sending is the block...
		m_msgHandle = data.section( ' ', 0, 0 );

		/*//This is WRONG! the displayName is never updated on the switchboeardsocket
		  //so we can't trust it.
		  //that's why the official client does not uptade alaws the nickname immediately.
		if(m_account->contacts()[ m_msgHandle ])
		{
			TQString displayName=data.section( ' ', 1, 1 );
			if(m_account->contacts()[ m_msgHandle ]->displayName() != displayName)
				m_account->contacts()[ m_msgHandle ]->rename(displayName);
		}*/

		readBlock(len.toUInt());
	}
}

void MSNSwitchBoardSocket::slotReadMessage( const TQByteArray &bytes )
{
	TQString msg = TQString::fromUtf8(bytes, bytes.size());

	TQRegExp rx("Content-Type: ([A-Za-z0-9/\\-]*)");
	rx.search(msg);
	TQString type=rx.cap(1);

	rx=TQRegExp("User-Agent: ([A-Za-z0-9./\\-]*)");
	rx.search(msg);
	TQString clientStr=rx.cap(1);

	if( !clientStr.isNull() && !m_msgHandle.isNull())
	{
		Kopete::Contact *c=m_account->contacts()[m_msgHandle];
		if(c)
			c->setProperty(  MSNProtocol::protocol()->propClient , clientStr );
	}

	// incoming message for File-transfer
	if( type== "text/x-msmsgsinvite"  )
	{
		emit invitation(m_msgHandle,msg);
	}
	else if( type== "text/x-msmsgscontrol" )
	{
		TQString message;
		message = msg.right( msg.length() - msg.findRev( " " ) - 1 );
		message = message.replace(  "\r\n" ,"" );
		emit receivedTypingMsg( message.lower(), true );
	}
	else if(type == "text/x-msnmsgr-datacast")
	{
		if(msg.contains("ID:"))
		{
			TQRegExp rx("ID: ([0-9]*)");
			rx.search(msg);
			uint dataCastId = rx.cap(1).toUInt();
			if( dataCastId == 1 )
			{
				kdDebug(14140) << k_funcinfo << "Received a nudge !" << endl;
				emit nudgeReceived(m_msgHandle);
			}
		}
	}
	else if(type=="text/plain" /*  || type.isEmpty()*/ )
	{
		// Some MSN Clients (like CCMSN) don't like to stick to the rules.
		// In case of CCMSN, it doesn't send what the content type is when
		// sending a text message. So if it's not supplied, we'll just
		// assume its that.

		TQColor fontColor;
		TQFont font;

		if ( msg.contains( "X-MMS-IM-Format" ) )
		{
			TQString fontName;
			TQString fontInfo;
			TQString color;

			rx=TQRegExp("X-MMS-IM-Format: ([^\r\n]*)");
			rx.search(msg);
			fontInfo =rx.cap(1);

			color = parseFontAttr(fontInfo, "CO");

			// FIXME: this is so BAAAAAAAAAAAAD :(
			if (!color.isEmpty() && color.toInt(0,16)!=0)
			{
				if ( color.length() == 2) // only #RR (red color) given
					fontColor.setRgb(
						color.mid(0,2).toInt(0,16),
						0,
						0);
				else if ( color.length() == 4) // #GGRR (green, red) given.
				{
					fontColor.setRgb(
						color.mid(2,2).toInt(0,16),
						color.mid(0,2).toInt(0,16),
						0);
				}
				else if ( color.length() == 6) // full #BBGGRR given
				{
					fontColor.setRgb(
						color.mid(4,2).toInt(0, 16),
						color.mid(2,2).toInt(0,16),
						color.mid(0,2).toInt(0,16));
				}
			}

			fontName = parseFontAttr(fontInfo, "FN").replace(  "%20" , " " );

			// Some clients like Trillian and Kopete itself send a font
			// name of 'MS Serif' since MS changed the server to
			// _require_ a font name specified in june 2002.
			// MSN's own client defaults to 'MS Sans Serif', which also
			// has issues.
			// Handle 'MS Serif' and 'MS Sans Serif' as an empty font name
			if( !fontName.isEmpty() && fontName != "MS Serif" && fontName != "MS Sans Serif" )
			{
				TQString ef=parseFontAttr( fontInfo, "EF" );

				font = TQFont( fontName,
					parseFontAttr( fontInfo, "PF" ).toInt(), // font size
					ef.contains( 'B' ) ? TQFont::Bold : TQFont::Normal,
					ef.contains( 'I' ) );
				font.setUnderline(ef.contains( 'U' ));
				font.setStrikeOut(ef.contains( 'S' ));
			}
		}

		TQPtrList<Kopete::Contact> others;
		others.append( m_account->myself() );
		TQStringList::iterator it2;
		for( it2 = m_chatMembers.begin(); it2 != m_chatMembers.end(); ++it2 )
		{
			if( *it2 != m_msgHandle )
				others.append( m_account->contacts()[ *it2 ] );
		}

		TQString message=msg.right( msg.length() - msg.find("\r\n\r\n") - 4 );

		//Stupid MSN PLUS colors code. message with incorrect charactere are not showed correctly in the chatwindow.
		//TODO: parse theses one to show the color too in Kopete
		message.replace("\3","").replace("\4","").replace("\2","").replace("\5","").replace("\6","").replace("\7","");

		if(!m_account->contacts()[m_msgHandle])
		{
			//this may happens if the contact has been deleted.
			kdDebug(14140) << k_funcinfo <<"WARNING: contact is null, adding it" <<endl;
			if( !m_chatMembers.contains( m_msgHandle ) )
				m_chatMembers.append( m_msgHandle );
			emit userJoined( m_msgHandle , m_msgHandle , false);
		}

		Kopete::Message kmsg( m_account->contacts()[ m_msgHandle ], others,
			message,
			Kopete::Message::Inbound , Kopete::Message::PlainText );

		kmsg.setFg( fontColor );
		kmsg.setFont( font );

		rx=TQRegExp("Chunks: ([0-9]*)");
		rx.search(msg);
		unsigned int chunks=rx.cap(1).toUInt();
		rx=TQRegExp("Chunk: ([0-9]*)");
		rx.search(msg);
		unsigned int chunk=rx.cap(1).toUInt();

		if(chunk != 0 && !m_msgQueue.isEmpty())
		{
			TQString msg=m_msgQueue.last().plainBody();
    		m_msgQueue.pop_back(); //removes the last item
    		kmsg.setBody( msg+ message, Kopete::Message::PlainText );
		}

    	if(chunk == 0 )
			m_chunks=chunks;
		else if(chunk+1 >=  m_chunks)
			m_chunks=0;

		if ( m_recvIcons > 0  || m_chunks > 0)
		{ //Some custom emoticons are waiting to be received. so append the message to the queue
		  //Or the message has not been fully received, so same thing
			kdDebug(14140) << k_funcinfo << "Message not fully received => append to queue.  Emoticon left: " << m_recvIcons << "  chunks: " << chunk+1 << " of " << m_chunks   <<endl;
			m_msgQueue.append( kmsg );
			if(!m_emoticonTimer) //to be sure no message will be lost, we will appends message to
			{                    // the queue in 15 secondes even if we have not received emoticons
				m_emoticonTimer=new TQTimer(this);
				TQObject::connect(m_emoticonTimer , TQT_SIGNAL(timeout()) , this, TQT_SLOT(cleanQueue()));
				m_emoticonTimer->start( 15000 , true );
			}
		}
		else
			emit msgReceived( parseCustomEmoticons( kmsg ) );

	}
	else if( type== "text/x-mms-emoticon" || type== "text/x-mms-animemoticon")
	{
		// TODO remove Displatcher.
		KConfig *config = TDEGlobal::config();
		config->setGroup( "MSN" );
		if ( config->readBoolEntry( "useCustomEmoticons", true ) )
		{
			TQRegExp rx("([^\\s]*)[\\s]*(<msnobj [^>]*>)");
			rx.setMinimal(true);
			int pos = rx.search(msg);
			while( pos != -1)
			{
				TQString msnobj=rx.cap(2);
				TQString txt=rx.cap(1);
				kdDebug(14140) << k_funcinfo << "emoticon: " <<  txt << "    msnobj: " << msnobj<<  endl;

				if( !m_emoticons.contains(msnobj) || !m_emoticons[msnobj].second )
				{
					m_emoticons.insert(msnobj, tqMakePair(txt,(KTempFile*)0L));
					MSNContact *c=static_cast<MSNContact*>(m_account->contacts()[m_msgHandle]);
					if(!c)
						return;

					// we are receiving emoticons, so delay message display until received signal
					m_recvIcons++;
					PeerDispatcher()->requestDisplayIcon(m_msgHandle, msnobj);
				}
				pos=rx.search(msg, pos+rx.matchedLength());
			}
		}
	}
	else if( type== "application/x-msnmsgrp2p" )
	{
		PeerDispatcher()->slotReadMessage(m_msgHandle, bytes);
	}
	else if( type == "text/x-clientcaps" )
	{
		rx=TQRegExp("Client-Name: ([A-Za-z0-9.$!*/% \\-]*)");
		rx.search(msg);
		clientStr=unescape( rx.cap(1) );

		if( !clientStr.isNull() && !m_msgHandle.isNull())
		{
			Kopete::Contact *c=m_account->contacts()[m_msgHandle];
			if(c)
				c->setProperty(  MSNProtocol::protocol()->propClient , clientStr );
		}

		if(!m_clientcapsSent)
		{
			KConfig *config = TDEGlobal::config();
			config->setGroup( "MSN" );

			TQString JabberID;
			if(config->readBoolEntry("SendJabber", true))
				JabberID=config->readEntry("JabberAccount");

			if(!JabberID.isEmpty())
				JabberID="JabberID: "+JabberID +"\r\n";

			if( config->readBoolEntry("SendClientInfo", true)   ||  !JabberID.isEmpty())
			{

				TQCString message = TQString( "MIME-Version: 1.0\r\n"
						"Content-Type: text/x-clientcaps\r\n"
						"Client-Name: Kopete/"+escape(kapp->aboutData()->version())+"\r\n"
						+JabberID+
						"\r\n" ).utf8();

				TQString args = "U";
				sendCommand( "MSG", args, true, message );
			}
			m_clientcapsSent=true;
		}


	}
	else if(type == "image/gif" || msg.contains("Message-ID:"))
	{
		// Incoming inkformatgif.
		TQRegExp regex("Message-ID: \\{([0-9A-F\\-]*)\\}");
		regex.search(msg);
		TQString messageId = regex.cap(1);
		regex = TQRegExp("Chunks: (\\d+)");
		regex.search(msg);
		TQString chunks = regex.cap(1);
		regex = TQRegExp("Chunk: (\\d+)");
		regex.search(msg);
		TQString chunk = regex.cap(1);

		if(!messageId.isNull())
		{
			bool valid = true;
			// Retrieve the nmber of data chunks.
			TQ_UINT32 numberOfChunks = chunks.toUInt(&valid);
			if(valid && (numberOfChunks > 1))
			{
				regex = TQRegExp("base64:([0-9a-zA-Z+/=]+)");
				regex.search(msg);
				// Retrieve the first chunk of the ink format gif.
				TQString base64 = regex.cap(1);
				// More chunks are expected, buffer the chunk received.
				InkMessage inkMessage;
				inkMessage.chunks = numberOfChunks;
				inkMessage.data += base64;
				m_inkMessageBuffer.insert(messageId, inkMessage);
			}
		}
		else
		{
			// There is only one chunk of data.
			regex = TQRegExp("base64:([0-9a-zA-Z+/=]*)");
			regex.search(msg);
			// Retrieve the base64 encoded ink data.
			TQString data = regex.cap(1);
			DispatchInkMessage(data);
		}

		if(!messageId.isNull())
		{
			if(m_inkMessageBuffer.contains(messageId))
			{
				if(chunks.isNull())
				{
					InkMessage inkMessage = m_inkMessageBuffer[messageId];
					inkMessage.data += msg.section("\r\n\r\n", -1);
					if(inkMessage.chunks == chunk.toUInt() + 1)
					{
						DispatchInkMessage(inkMessage.data);
						// Remove the ink message from the buffer.
						m_inkMessageBuffer.remove(messageId);
					}
				}
			}
		}
	}
	else
	{
		kdDebug(14140) << k_funcinfo <<" Unknown type '" << type << "' message: \n"<< msg <<endl;
	}
}

void MSNSwitchBoardSocket::DispatchInkMessage(const TQString& base64String)
{
	TQByteArray image;
	// Convert from base64 encoded string to byte array.
	KCodecs::base64Decode(base64String.utf8() , image);
	KTempFile *inkImage = new KTempFile(locateLocal( "tmp", "inkformatgif-" ), ".gif");
	inkImage->setAutoDelete(true);
	inkImage->file()->writeBlock(image.data(), image.size());
	inkImage->file()->close();

	slotEmoticonReceived(inkImage , "inkformatgif");
	inkImage = 0l;
}

void MSNSwitchBoardSocket::sendTypingMsg( bool isTyping )
{
	if( !isTyping )
		return;

	if ( onlineStatus() != Connected || m_chatMembers.empty())
	{
		//we are not yet in a chat.
		//if we send that command now, we may get disconnected.
		return;
	}


	TQCString message = TQString( "MIME-Version: 1.0\r\n"
		"Content-Type: text/x-msmsgscontrol\r\n"
		"TypingUser: " + m_myHandle + "\r\n"
		"\r\n" ).utf8();

	// Length is appended by sendCommand()
	TQString args = "U";
	sendCommand( "MSG", args, true, message );
}

// this Invites an Contact
void MSNSwitchBoardSocket::slotInviteContact(const TQString &handle)
{
	m_msgHandle=handle;
	sendCommand( "CAL", handle );
}
//
// Send a custum emoticon
//
int MSNSwitchBoardSocket::sendCustomEmoticon(const TQString &name, const TQString &filename)
{
	TQString picObj;

	//try to find it in the cache.
	const TQMap<TQString, TQString> objectList = PeerDispatcher()->objectList;
	for (TQMap<TQString,TQString>::ConstIterator it = objectList.begin(); it != objectList.end(); ++it )
	{
		if(it.data() == filename)
		{
			picObj=it.key();
			break;
		}
	}

	if(picObj.isNull())
	{ //if not found in the cache, generate the picture object
		TQFileInfo fi(filename);
		// open the icon file
		TQFile pictFile(fi.filePath());
		if (pictFile.open(IO_ReadOnly)) {

			TQByteArray ar = pictFile.readAll();
			pictFile.close();

			TQString sha1d = TQString(KCodecs::base64Encode(SHA1::hash(ar)));
			TQString size = TQString::number( pictFile.size() );
			TQString all = "Creator" + m_account->accountId() +	"Size" + size + "Type2Location" + fi.fileName() + "FriendlyAAA=SHA1D" + sha1d;
			TQString sha1c = TQString(KCodecs::base64Encode(SHA1::hashString(all.utf8())));
			picObj = "<msnobj Creator=\"" + m_account->accountId() + "\" Size=\"" + size  + "\" Type=\"2\" Location=\""+ fi.fileName() + "\" Friendly=\"AAA=\" SHA1D=\""+sha1d+ "\" SHA1C=\""+sha1c+"\"/>";

			PeerDispatcher()->objectList.insert(picObj, filename);
		}
		else
			return 0;
	}

	TQString msg = "MIME-Version: 1.0\r\n"
				"Content-Type: text/x-mms-emoticon\r\n"
				"\r\n" +
				name + "\t" + picObj + "\t\r\n";

	return sendCommand("MSG", "A", true, msg.utf8());

}

// this sends a short message to the server
int MSNSwitchBoardSocket::sendMsg( const Kopete::Message &msg )
{
	if ( onlineStatus() != Connected || m_chatMembers.empty())
	{
//		m_messagesQueue.append(msg);
		return -1;
	}

#if 0   //this is to test webcam
	if(msg.plainBody().contains("/webcam"))
	{
		PeerDispatcher()->startWebcam( m_myHandle , m_msgHandle);
		return -3;
	}
#endif

	KConfig *config = TDEGlobal::config();
	config->setGroup( "MSN" );
	if ( config->readBoolEntry( "exportEmoticons", false ) )
	{
		TQMap<TQString, TQStringList> emap = Kopete::Emoticons::self()->emoticonAndPicList();

		// Check the list for any custom emoticons
		for (TQMap<TQString, TQStringList>::const_iterator itr = emap.begin(); itr != emap.end(); itr++)
		{
			for ( TQStringList::const_iterator itr2 = itr.data().constBegin(); itr2 != itr.data().constEnd(); ++itr2 )
			{
				if ( msg.plainBody().contains( *itr2 ) )
					sendCustomEmoticon( *itr2, itr.key() );
			}
		}
	}

	if( msg.format() & Kopete::Message::RichText )
	{
		TQRegExp regex("^\\s*<img src=\"([^>\"]+)\"[^>]*>\\s*$");
		if(regex.search(msg.escapedBody()) != -1)
		{
			// FIXME why are we sending the images.. the contact should request them.
			PeerDispatcher()->sendImage(regex.cap(1), m_msgHandle);
			return -3;
		}
	}

	// User-Agent is not a official flag, but PIDGIN has it
	TQString UA;
	if( config->readBoolEntry("SendClientInfo", true) )
	{
		UA="User-Agent: Kopete/"+escape(kapp->aboutData()->version())+"\r\n";
	}

	TQString head =
		"MIME-Version: 1.0\r\n"
		"Content-Type: text/plain; charset=UTF-8\r\n"
		+UA+
		"X-MMS-IM-Format: ";

	if(msg.font() != TQFont() )
	{
		//It's verry strange that if the font name is bigger than 31 char, the _server_ close the socket and don't deliver the message.
		//  the real question is why ?   my guess is that MS patched the server because a bug in their client,  but that's just a guess.
		//      - Olivier   06-2005
		head += "FN=" + escape( msg.font().family().left(31));
		head += "; EF=";
		if(msg.font().bold())
			head += "B";
		if(msg.font().italic())
			head += "I";
		if(msg.font().strikeOut())
			head += "S";
		if(msg.font().underline())
			head += "U";
		head += "; ";
	}
	else head+="FN=; EF=; ";
	/*
	 * I don't know what to set by default, so i decided to set nothing.  CF Bug 82734
	 * (but don't forgeto to add an empty FN= and EF= ,  or webmessenger will break. (CF Bug 102371) )
	else head+="FN=MS%20Serif; EF=; ";
	 */

	// Color support
	if (msg.fg().isValid())
	{
		TQString colorCode = TQColor(msg.fg().blue(),msg.fg().green(),msg.fg().red()).name().remove(0,1);  //colors aren't sent in RGB but in BGR (O.G.)
		head += "CO=" + colorCode;
	}
	else
	{
		head += "CO=0";
	}

	head += "; CS=0; PF=0";
	if (msg.plainBody().isRightToLeft())
		head += "; RL=1";
	head += "\r\n";

	TQString message= msg.plainBody().replace(  "\n" , "\r\n" );

	//-- Check if the message isn't too big,  TODO: do that at the libkopete level.
	int len_H=head.utf8().length();	// != head.length()  because i need the size in butes and
	int len_M=message.utf8().length();	//    some utf8 char may be longer than one byte
	if( len_H+len_M >= 1660 ) //1664 is the maximum size of messages allowed by the server
	{
		//We will certenly split the message in several ones.
		//It's possible to made the opposite client join them, as explained in this MS Word document
		//http://www.bot-depot.com/forums/index.php?act=Attach&type=post&id=35110

		head+="Message-ID: {7B7B34E6-7A8D-44FF-926C-1799156B58"+TQString::number( rand()%10)+TQString::number( rand()%10)+"}\r\n";
		int len_H=head.utf8().length()+ 14;   //14 is the size of "Chunks: x"
		//this is the size of each part of the message (excluding the header)
		int futurmessages_size=1400;  //1400 is a common good size
		//int futurmessages_size=1664-len_H;

		int nb=(int)ceil((float)(len_M)/(float)(futurmessages_size));

		if(KMessageBox::warningContinueCancel(0L /* FIXME: we should try to find a parent somewere*/ ,
			i18n("The message you are trying to send is too long; it will be split into %1 messages.").arg(nb) ,
			i18n("Message too big - MSN Plugin" ), KStdGuiItem::cont() , "SendLongMessages" )
				== KMessageBox::Continue )
		{
			int place=0;
			int result;
			int chunk=0;
			do
			{
				TQString m=message.mid(place, futurmessages_size);
				place += futurmessages_size;

				//make sure the size is not too big because of utf8
				int d=m.utf8().length() + len_H -1664;
				if( d > 0 )
				{//it contains some utf8 chars, so we strip the string a bit.
					m=m.left( futurmessages_size - d );
					place -= d;
				}

				//try to snip on space if possible
				int len=m.length();
				d=0;
				while(d<200 && !m[len-d].isSpace() )
					d++;
				if(d<200)
				{
					m=m.left(len-d);
					place -= d;
				}
				TQString chunk_str;
				if(chunk==0)
					chunk_str="Chunks: "+TQString::number(nb)+"\r\n";
				else if(chunk<nb)
					chunk_str="Chunk: "+TQString::number(chunk)+"\r\n";
				else
				{
					kdDebug(14140) << k_funcinfo <<"The message is slit in more than initially estimated" <<endl;
				}
				result=sendCommand( "MSG", "A", true, (head+chunk_str+"\r\n"+m).utf8() );
				chunk++;
			}
			while(place < len_M) ;

			while(chunk<nb)
			{
				kdDebug(14140) << k_funcinfo <<"The message is plit in less than initially estimated.  Sending empty message to complete" <<endl;
				TQString chunk_str="Chunk: "+TQString::number(chunk);
				sendCommand( "MSG", "A", true, (head+chunk_str+"\r\n").utf8() );
				chunk++;
			}
			return result;
		}
		return -2;  //the message hasn't been sent.
	}
	
	if(!m_keepAlive)
	{
		m_keepAliveNb=20;
		m_keepAlive=new TQTimer(this);
		TQObject::connect(m_keepAlive, TQT_SIGNAL(timeout()) , this , TQT_SLOT(slotKeepAliveTimer()));
		m_keepAlive->start(50*1000);
	}

	
	return sendCommand( "MSG", "A", true, (head+"\r\n"+message).utf8() );
}

void MSNSwitchBoardSocket::slotSocketClosed( )
{
	for( TQStringList::Iterator it = m_chatMembers.begin(); it != m_chatMembers.end(); ++it )
	{
		emit userLeft( (*it), i18n("connection closed"));
	}

	// we have lost the connection, send a message to chatwindow (this will not displayed)
//	emit switchBoardIsActive(false);
	emit switchBoardClosed( );
}

void MSNSwitchBoardSocket::slotCloseSession()
{
	sendCommand( "OUT", TQString(), false );
	disconnect();
}

// Check if we are connected. If so, then send the handshake.
void MSNSwitchBoardSocket::slotOnlineStatusChanged( MSNSocket::OnlineStatus status )
{
	if (status == Connected)
	{
		TQCString command;
		TQString args;

		if( !m_ID ) // we're inviting
		{
			command = "USR";
			args = m_myHandle + " " + m_auth;
		}
		else // we're invited
		{
			command = "ANS";
			args = m_myHandle + " " + m_auth + " " + m_ID;
		}
		sendCommand( command, args );
		
		if(!m_keepAlive)
		{
			m_keepAliveNb=20;
			m_keepAlive=new TQTimer(this);
			TQObject::connect(m_keepAlive, TQT_SIGNAL(timeout()) , this , TQT_SLOT(slotKeepAliveTimer()));
			m_keepAlive->start(50*1000);
		}
	}
}

void MSNSwitchBoardSocket::userLeftChat(const TQString& handle , const TQString &reason)
{
	emit userLeft( handle,  reason );

	if( m_chatMembers.contains( handle ) )
		m_chatMembers.remove( handle );

	if(m_chatMembers.isEmpty())
		disconnect();
}

void MSNSwitchBoardSocket::requestDisplayPicture()
{
	MSNContact *contact = static_cast<MSNContact*>(m_account->contacts()[m_msgHandle]);
	if(!contact) return;

	PeerDispatcher()->requestDisplayIcon(m_msgHandle, contact->object());
}

void  MSNSwitchBoardSocket::slotEmoticonReceived( KTempFile *file, const TQString &msnObj )
{
	kdDebug(14141) << k_funcinfo << msnObj << endl;

	if(m_emoticons.contains(msnObj))
	{ //it's an emoticon
		m_emoticons[msnObj].second=file;

		if( m_recvIcons > 0 )
			m_recvIcons--;
		kdDebug(14140) << k_funcinfo << "emoticons received queue is now: " << m_recvIcons << endl;

		if ( m_recvIcons <= 0 )
			cleanQueue();
	}
	else if(msnObj == "inkformatgif")
	{
		TQString msg=i18n("<img src=\"%1\" alt=\"Typewrited message\" />" ).arg( file->name() );

		kdDebug(14140) << k_funcinfo << file->name()  <<endl;

		m_typewrited.append(file);
		m_typewrited.setAutoDelete(true);

		TQPtrList<Kopete::Contact> others;
		others.append( m_account->myself() );

		TQStringList::iterator it2;
		for( it2 = m_chatMembers.begin(); it2 != m_chatMembers.end(); ++it2 )
		{
			if( *it2 != m_msgHandle )
				others.append( m_account->contacts()[ *it2 ] );
		}

		if(!m_account->contacts()[m_msgHandle])
		{
			//this may happens if the contact has been deleted.
			kdDebug(14140) << k_funcinfo <<"WARNING: contact is null, adding it" <<endl;
			if( !m_chatMembers.contains( m_msgHandle ) )
				m_chatMembers.append( m_msgHandle );
			emit userJoined( m_msgHandle , m_msgHandle , false);
		}

		Kopete::Message kmsg( m_account->contacts()[ m_msgHandle ], others,
			msg, Kopete::Message::Inbound , Kopete::Message::RichText );

		emit msgReceived(  kmsg  );
	}
	else //if it is not an emoticon,
	{    // it's certenly the displaypicture.
		MSNContact *c=static_cast<MSNContact*>(m_account->contacts()[m_msgHandle]);
		if(c && c->object()==msnObj)
			c->setDisplayPicture(file);
		else
			delete file;
	}
}

void MSNSwitchBoardSocket::slotIncomingFileTransfer(const TQString& from, const TQString& /*fileName*/, TQ_INT64 /*fileSize*/)
{
	TQPtrList<Kopete::Contact> others;
	others.append( m_account->myself() );
	TQStringList::iterator it2;
	for( it2 = m_chatMembers.begin(); it2 != m_chatMembers.end(); ++it2 )
	{
		if( *it2 != m_msgHandle )
			others.append( m_account->contacts()[ *it2 ] );
	}

	if(!m_account->contacts()[m_msgHandle])
	{
		//this may happens if the contact has been deleted.
		kdDebug(14140) << k_funcinfo <<"WARNING: contact is null, adding it" <<endl;
		if( !m_chatMembers.contains( m_msgHandle ) )
			m_chatMembers.append( m_msgHandle );
		emit userJoined( m_msgHandle , m_msgHandle , false);
	}
	TQString invite = "Incoming file transfer.";
	Kopete::Message msg =
		Kopete::Message(m_account->contacts()[from], others, invite, Kopete::Message::Internal, Kopete::Message::PlainText);
	emit msgReceived(msg);
}

void MSNSwitchBoardSocket::cleanQueue()
{
	if(m_emoticonTimer)
	{
		m_emoticonTimer->stop();
		m_emoticonTimer->deleteLater();
		m_emoticonTimer=0L;
	}
	kdDebug(14141) << k_funcinfo << m_msgQueue.count() << endl;

	TQValueList<const Kopete::Message>::Iterator it_msg;
	for ( it_msg = m_msgQueue.begin(); it_msg != m_msgQueue.end(); ++it_msg )
	{
	 	Kopete::Message kmsg = (*it_msg);
	 	emit msgReceived( parseCustomEmoticons( kmsg ) );
	}
	m_msgQueue.clear();
}

Kopete::Message &MSNSwitchBoardSocket::parseCustomEmoticons(Kopete::Message &kmsg)
{
	TQString message=kmsg.escapedBody();
	TQMap<TQString , TQPair<TQString , KTempFile*> >::Iterator it;
	for ( it = m_emoticons.begin(); it != m_emoticons.end(); ++it )
	{
		TQString es=TQStyleSheet::escape(it.data().first);
		KTempFile *f=it.data().second;
		if(message.contains(es) && f)
		{
			TQString imgPath = f->name();
			TQImage iconImage(imgPath);
			/* We don't use a comple algoritm (like the one in the #if)  because the msn client shows
		     * emoticons like that. So, in that case, we show like the MSN client */
			#if 0
			TQString em = TQRegExp::escape( es );
			message.replace( TQRegExp(TQString::fromLatin1( "(^|[\\W\\s]|%1)(%2)(?!\\w)" ).arg(em).arg(em)),
								TQString::fromLatin1("\\1<img align=\"center\" width=\"") +
			#endif
			//match any occurence which is not in a html tag.
			message.replace( TQRegExp(TQString::fromLatin1("%1(?![^><]*>)").arg(TQRegExp::escape(es))),
						TQString::fromLatin1("<img align=\"center\" width=\"") +
						TQString::number(iconImage.width()) +
						TQString::fromLatin1("\" height=\"") +
						TQString::number(iconImage.height()) +
						TQString::fromLatin1("\" src=\"") + imgPath +
						TQString::fromLatin1("\" title=\"") + es +
						TQString::fromLatin1("\" alt=\"") + es +
						TQString::fromLatin1( "\"/>" ) );
			kmsg.setBody(message, Kopete::Message::RichText);
		}
	}
	return kmsg;
}

int MSNSwitchBoardSocket::sendNudge()
{
	TQCString message = TQString( "MIME-Version: 1.0\r\n"
			"Content-Type: text/x-msnmsgr-datacast\r\n"
			"\r\n"
			"ID: 1\r\n"
			"\r\n\r\n" ).utf8();

	TQString args = "U";
	return sendCommand( "MSG", args, true, message );
}



// FIXME: This is nasty... replace with a regexp or so.
TQString MSNSwitchBoardSocket::parseFontAttr(TQString str, TQString attr)
{
	TQString tmp;
	int pos1=0, pos2=0;

	pos1 = str.find(attr + "=");

	if (pos1 == -1)
		return "";

	pos2 = str.find(";", pos1+3);

	if (pos2 == -1)
		tmp = str.mid(pos1+3, str.length() - pos1 - 3);
	else
		tmp = str.mid(pos1+3, pos2 - pos1 - 3);

	return tmp;
}

Dispatcher* MSNSwitchBoardSocket::PeerDispatcher()
{
	if(!m_dispatcher)
	{
		// Create a new msnslp dispatcher to handle
		// all peer to peer requests.
		TQStringList ip;
		if(m_account->notifySocket())
		{
			ip << m_account->notifySocket()->localIP();
			if(m_account->notifySocket()->localIP() != m_account->notifySocket()->getLocalIP())
				ip << m_account->notifySocket()->getLocalIP();
		}
		m_dispatcher = new Dispatcher(this, m_account->accountId(),ip );

// 		TQObject::connect(this, TQT_SIGNAL(blockRead(const TQByteArray&)), m_dispatcher, TQT_SLOT(slotReadMessage(const TQByteArray&)));
// 		TQObject::connect(m_dispatcher, TQT_SIGNAL(sendCommand(const TQString&, const TQString&, bool, const TQByteArray&, bool)), this, TQT_SLOT(sendCommand(const TQString&, const TQString&, bool, const TQByteArray&, bool)));
		TQObject::connect(m_dispatcher, TQT_SIGNAL(incomingTransfer(const TQString&, const TQString&, TQ_INT64)), this, TQT_SLOT(slotIncomingFileTransfer(const TQString&, const TQString&, TQ_INT64)));
		TQObject::connect(m_dispatcher, TQT_SIGNAL(displayIconReceived(KTempFile *, const TQString&)), this, TQT_SLOT(slotEmoticonReceived( KTempFile *, const TQString&)));
		TQObject::connect(this, TQT_SIGNAL(msgAcknowledgement(unsigned int, bool)), m_dispatcher, TQT_SLOT(messageAcknowledged(unsigned int, bool)));
		m_dispatcher->m_pictureUrl = m_account->pictureUrl();
	}
	return m_dispatcher;
}

void MSNSwitchBoardSocket::slotKeepAliveTimer( )
{
	/*
	This is a workaround against the bug 113425
	The problem:  the P2P::Webcam class is parent of us, and when we get deleted, it get deleted.
			the correct solution would be to change that.
	The second problem: after one minute of inactivity, the official client close the chat socket.
	the workaround: we simulate the activity by sending small packet each 50 seconds
	the nice side effect:  the "xxx has closed the chat" is now meaningfull
	the bad side effect:  some switchboard connection may be maintained for really long time!
	 */
	
	if ( onlineStatus() != Connected || m_chatMembers.empty())
	{
		//we are not yet in a chat.
		//if we send that command now, we may get disconnected.
		return;
	}


	TQCString message = TQString( "MIME-Version: 1.0\r\n"
			"Content-Type: text/x-keepalive\r\n"
			"\r\n" ).utf8();

	// Length is appended by sendCommand()
	TQString args = "U";
	sendCommand( "MSG", args, true, message );
	
	m_keepAliveNb--;
	if(m_keepAliveNb <= 0)
	{
		m_keepAlive->deleteLater();
		m_keepAlive=0L;
	}
}

#include "msnswitchboardsocket.moc"

// vim: set noet ts=4 sts=4 sw=4: