GTalkExt, ICQ, IRC, Jabber: folders restructurization

git-svn-id: http://svn.miranda-ng.org/main/trunk@1890 1316c22d-e87f-b044-9b9b-93d7a3e3ba9c

1 files changed, 1505 insertions, 0 deletions

diff --git a/protocols/IRCG/src/irclib.cpp b/protocols/IRCG/src/irclib.cpp
new file mode 100644
index 0000000000..c018b57a02
--- /dev/null
+++ b/protocols/IRCG/src/irclib.cpp
@@ -0,0 +1,1505 @@
+/*

+IRC plugin for Miranda IM

+

+Copyright (C) 2003-05 Jurgen Persson

+Copyright (C) 2007-09 George Hazan

+

+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.

+

+This program is distributed in the hope that it will be useful,

+but WITHOUT ANY WARRANTY; without even the implied warranty of

+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

+GNU General Public License for more details.

+

+You should have received a copy of the GNU General Public License

+along with this program; if not, write to the Free Software

+Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.

+*/

+#include "irc.h"

+

+#define DCCCHATTIMEOUT 300

+#define DCCSENDTIMEOUT 120

+

+using namespace irc;

+

+int CDccSession::nDcc = 0;

+

+static int CompareHandlers( const CIrcHandler* p1, const CIrcHandler* p2 )

+{

+	return lstrcmp( p1->m_name, p2->m_name );

+}

+

+OBJLIST<CIrcHandler> CIrcProto::m_handlers( 30, CompareHandlers );

+

+////////////////////////////////////////////////////////////////////

+

+CIrcMessage::CIrcMessage( CIrcProto* _pro, const TCHAR* lpszCmdLine, int codepage, bool bIncoming, bool bNotify ) :

+	m_proto( _pro ),

+	m_bIncoming( bIncoming ),

+	m_bNotify( bNotify ),

+	m_codePage( codepage ),

+	parameters( 10 )

+{

+	ParseIrcCommand(lpszCmdLine);

+}

+

+CIrcMessage::CIrcMessage(const CIrcMessage& m) :

+	sCommand( m.sCommand ),

+	m_bIncoming( m.m_bIncoming ), 

+	m_bNotify( m.m_bNotify ),

+	m_codePage( m.m_codePage ),

+	m_proto( m.m_proto ),

+	parameters( m.parameters.getCount())

+{

+	prefix.sNick = m.prefix.sNick;

+	prefix.sUser = m.prefix.sUser;

+	prefix.sHost = m.prefix.sHost;

+

+	for ( int i=0; i < m.parameters.getCount(); i++ )

+		parameters.insert( new CMString( m.parameters[i] ));

+}

+

+CIrcMessage::~CIrcMessage()

+{

+}

+

+void CIrcMessage::Reset()

+{

+	prefix.sNick = prefix.sUser = prefix.sHost = sCommand = _T("");

+	m_bIncoming = false;

+	m_bNotify = true;

+

+	parameters.destroy();

+}

+

+CIrcMessage& CIrcMessage::operator = (const CIrcMessage& m)

+{

+	if ( &m != this ) {

+		sCommand = m.sCommand;

+		parameters = m.parameters;

+		prefix.sNick = m.prefix.sNick;

+		prefix.sUser = m.prefix.sUser;

+		prefix.sHost = m.prefix.sHost;

+		m_bIncoming = m.m_bIncoming;

+		m_bNotify = m.m_bNotify;

+	}

+	return *this;

+}

+

+CIrcMessage& CIrcMessage::operator = (const TCHAR* lpszCmdLine)

+{

+	Reset();

+	ParseIrcCommand(lpszCmdLine);

+	return *this;

+}

+

+void CIrcMessage::ParseIrcCommand(const TCHAR* lpszCmdLine)

+{

+	const TCHAR* p1 = lpszCmdLine;

+	const TCHAR* p2 = lpszCmdLine;

+

+	// prefix exists ?

+	if ( *p1 == ':' ) {

+		// break prefix into its components (nick!user@host)

+		p2 = ++p1;

+		while( *p2 && !_tcschr( _T(" !"), *p2 ))

+			++p2;

+		prefix.sNick.SetString(p1, p2 - p1);

+		if ( *p2 != '!' )

+			goto end_of_prefix;

+		p1 = ++p2;

+		while( *p2 && !_tcschr( _T(" @"), *p2 ))

+			++p2;

+		prefix.sUser.SetString(p1, p2 - p1);

+		if ( *p2 != '@' )

+			goto end_of_prefix;

+		p1 = ++p2;

+		while( *p2 && *p2 != ' ' )

+			++p2;

+		prefix.sHost.SetString(p1, p2 - p1);

+end_of_prefix :

+		while( *p2 && *p2 == ' ' )

+			++p2;

+		p1 = p2;

+	}

+

+	// get command

+	p2 = p1;

+	while( *p2 && *p2 != ' ' )

+		++p2;

+

+	sCommand.SetString(p1, p2 - p1);

+	sCommand.MakeUpper();

+	while( *p2 && *p2 == ' ' )

+		++p2;

+	p1 = p2;

+

+	// get parameters

+	while( *p1 ) {

+		if ( *p1 == ':' ) {

+			++p1;

+

+			// seek end-of-message

+			while( *p2 )

+				++p2;

+			parameters.insert( new CMString(p1, p2 - p1));

+			break;

+		}

+		else {

+			// seek end of parameter

+			while( *p2 && *p2 != ' ' )

+				++p2;

+			parameters.insert( new CMString(p1, p2 - p1));

+			// see next parameter

+			while( *p2 && *p2 == ' ' )

+				++p2;

+			p1 = p2;

+}	}	}

+

+////////////////////////////////////////////////////////////////////

+

+int CIrcProto::getCodepage() const

+{

+	return ( con != NULL ) ? codepage : CP_ACP;

+}

+

+void CIrcProto::SendIrcMessage( const TCHAR* msg, bool bNotify, int codepage )

+{

+	if ( codepage == -1 )

+		codepage = getCodepage();

+

+	if ( this ) {

+		char* str = mir_t2a_cp( msg, codepage );

+		rtrim( str );

+		int cbLen = (int)strlen( str );

+		str = ( char* )mir_realloc( str, cbLen+3 );

+		strcat( str, "\r\n" );

+		NLSend(( const BYTE* )str, cbLen+2 );

+		mir_free( str );

+		

+		if ( bNotify ) {

+			CIrcMessage ircMsg( this, msg, codepage );

+			if ( !ircMsg.sCommand.IsEmpty() && ircMsg.sCommand != _T("QUIT"))

+				Notify( &ircMsg );

+}	}	}

+

+bool CIrcProto::Connect(const CIrcSessionInfo& info)

+{

+	codepage = m_codepage;

+

+	NETLIBOPENCONNECTION ncon = { 0 };

+	ncon.cbSize = sizeof(ncon);

+	ncon.szHost = info.sServer.c_str();

+	ncon.wPort = info.iPort;

+	con = (HANDLE) CallService( MS_NETLIB_OPENCONNECTION, (WPARAM) hNetlib, (LPARAM) & ncon);

+	if (con == NULL) {

+		TCHAR szTemp[300];

+		mir_sntprintf(szTemp, SIZEOF(szTemp), _T("\0035%s \002%s\002 (") _T(TCHAR_STR_PARAM) _T(": %u)."),

+			TranslateT("Failed to connect to"), si.sNetwork.c_str(), si.sServer.c_str(), si.iPort);

+		DoEvent(GC_EVENT_INFORMATION, SERVERWINDOW, NULL, szTemp, NULL, NULL, NULL, true, false);

+		return false;

+	}

+

+	FindLocalIP(con); // get the local ip used for filetransfers etc

+

+	if ( info.m_iSSL > 0 ) {

+		if ( !CallService( MS_NETLIB_STARTSSL, ( WPARAM ) con, 0 ) && info.m_iSSL == 2 ) {

+			Netlib_CloseHandle( con );

+			con = NULL;

+			m_info.Reset();

+			return false;

+	}	}

+

+	if ( Miranda_Terminated()) {

+		Disconnect();

+		return false;

+	}

+

+	m_info = info;

+

+	// start receiving messages from host

+	ircFork( &CIrcProto::ThreadProc, NULL );

+	Sleep( 100 );

+	if ( info.sPassword.GetLength())

+		NLSend( "PASS %s\r\n", info.sPassword.c_str());

+	NLSend( _T("NICK %s\r\n"), info.sNick.c_str());

+

+	CMString m_userID = GetWord(info.sUserID.c_str(), 0);

+	TCHAR szHostName[MAX_PATH];

+	DWORD cbHostName = SIZEOF( szHostName );

+	GetComputerName(szHostName, &cbHostName);

+	CMString HostName = GetWord(szHostName, 0);

+	if ( m_userID.IsEmpty())

+		m_userID = _T("Miranda");

+	if ( HostName.IsEmpty())

+		HostName= _T("host");

+	NLSend( _T("USER %s %s %s :%s\r\n"), m_userID.c_str(), HostName.c_str(), _T("server"), info.sFullName.c_str());

+

+	return con != NULL;

+}

+

+void CIrcProto::Disconnect(void)

+{

+	static const DWORD dwServerTimeout = 5 * 1000;

+

+	if ( con == NULL )

+		return;

+

+	KillIdent();

+

+	if ( m_quitMessage && m_quitMessage[0] )

+		NLSend( _T("QUIT :%s\r\n"), m_quitMessage);

+	else

+		NLSend( "QUIT \r\n" );

+

+	Sleep(50);

+

+	if ( con )

+		Netlib_Shutdown(con);

+

+	m_info.Reset();

+	return;

+}

+

+void CIrcProto::Notify(const CIrcMessage* pmsg)

+{

+	OnIrcMessage(pmsg);

+}

+

+int CIrcProto::NLSend( const unsigned char* buf, int cbBuf)

+{

+	if ( m_bMbotInstalled && m_scriptingEnabled ) {

+		int iVal = NULL;

+		char * pszTemp = 0;

+		pszTemp = ( char* ) mir_alloc( lstrlenA((const char *) buf ) + 1);

+		lstrcpynA(pszTemp, (const char *)buf, lstrlenA ((const char *)buf) + 1);

+

+		if ( Scripting_TriggerMSPRawOut(&pszTemp) && pszTemp ) {

+			if (con)

+				iVal = Netlib_Send(con, (const char*)pszTemp, lstrlenA(pszTemp), MSG_DUMPASTEXT);

+		}

+		if ( pszTemp )

+			mir_free( pszTemp );

+

+		return iVal;

+	}

+	

+	if (con)

+		return Netlib_Send(con, (const char*)buf, cbBuf, MSG_DUMPASTEXT);

+

+	return 0;

+}

+

+int CIrcProto::NLSend( const TCHAR* fmt, ...)

+{

+	va_list marker;

+	va_start(marker, fmt);

+

+	TCHAR szBuf[1024*4];

+	mir_vsntprintf(szBuf, SIZEOF(szBuf), fmt, marker);

+	va_end(marker);

+

+	char* buf = mir_t2a_cp( szBuf, getCodepage());

+	int result = NLSend((unsigned char*)buf, (int)strlen(buf));

+	mir_free( buf );

+	return result;

+}

+

+int CIrcProto::NLSend( const char* fmt, ...)

+{

+	va_list marker;

+	va_start(marker, fmt);

+

+	char szBuf[1024*4];

+	int cbLen = mir_vsnprintf(szBuf, SIZEOF(szBuf), fmt, marker);

+	va_end(marker);

+

+	return NLSend((unsigned char*)szBuf, cbLen );

+}

+

+int CIrcProto::NLSendNoScript( const unsigned char* buf, int cbBuf)

+{

+	if ( con )

+		return Netlib_Send(con, (const char*)buf, cbBuf, MSG_DUMPASTEXT);

+

+	return 0;

+}

+

+int CIrcProto::NLReceive(unsigned char* buf, int cbBuf)

+{

+	return Netlib_Recv( con, (char*)buf, cbBuf, MSG_DUMPASTEXT );

+}

+

+void CIrcProto::KillIdent()

+{

+	if ( hBindPort ) {

+		HANDLE hPort = hBindPort;

+		hBindPort = NULL;

+		Netlib_CloseHandle( hPort );

+	}

+}

+

+void CIrcProto::InsertIncomingEvent(TCHAR* pszRaw)

+{

+	CIrcMessage msg( this, pszRaw, true);

+	Notify( &msg );

+	return;

+}

+

+void CIrcProto::createMessageFromPchar( const char* p )

+{

+	TCHAR* ptszMsg;

+	if ( codepage != CP_UTF8 && m_utfAutodetect ) {

+		if ( mir_utf8decodecp( NEWSTR_ALLOCA(p), codepage, &ptszMsg ) == NULL )

+				ptszMsg = mir_a2t_cp( p, codepage );

+	}

+	else ptszMsg = mir_a2t_cp( p, codepage );

+	CIrcMessage msg( this, ptszMsg, codepage, true );

+	Notify( &msg );

+	mir_free( ptszMsg );

+}

+

+void CIrcProto::DoReceive()

+{

+	char chBuf[1024*4+1];

+	int cbInBuf = 0;

+	

+	if ( m_info.bIdentServer && m_info.iIdentServerPort != NULL ) {

+		NETLIBBIND nb = {0};

+		nb.cbSize = sizeof(NETLIBBIND);

+		nb.pfnNewConnectionV2 = DoIdent;

+		nb.pExtra = this;

+		nb.wPort = m_info.iIdentServerPort;

+		hBindPort = (HANDLE)CallService( MS_NETLIB_BINDPORT, (WPARAM)hNetlib,(LPARAM) &nb);

+		if ( !hBindPort || nb.wPort != m_info.iIdentServerPort ) {

+			DoNetlibLog("Error: unable to bind local port %u", m_info.iIdentServerPort);

+			KillIdent();

+	}	}

+

+	while( con ) {

+		int nLinesProcessed = 0;

+

+		int cbRead = NLReceive((unsigned char*)chBuf+cbInBuf, sizeof(chBuf)-cbInBuf-1);

+		if ( cbRead <= 0 )

+			break;

+

+		cbInBuf += cbRead;

+		chBuf[cbInBuf] = '\0';

+

+		char* pStart = chBuf;

+		while( *pStart ) {

+			char* pEnd;

+

+			// seek end-of-line

+			for(pEnd=pStart; *pEnd && *pEnd != '\r' && *pEnd != '\n'; ++pEnd)

+				;

+			if ( *pEnd == '\0' )

+				break; // uncomplete message. stop parsing.

+

+			++nLinesProcessed;

+

+			// replace end-of-line with NULLs and skip

+			while( *pEnd == '\r' || *pEnd == '\n' )

+				*pEnd++ = '\0';

+

+			// process single message by monitor objects

+			if ( *pStart ) {

+				if ( m_bMbotInstalled && m_scriptingEnabled ) {

+					char* pszTemp = mir_strdup( pStart ); 

+

+					if ( Scripting_TriggerMSPRawIn( &pszTemp ) && pszTemp ) {

+						char* p1 = pszTemp;

+						// replace end-of-line with NULLs

+						while( *p1 != '\0' ) {

+							if ( *p1 == '\r' || *p1 == '\n')

+								*p1 = '\0';

+							p1++;

+						}

+

+						createMessageFromPchar( pszTemp );

+					}

+

+					mir_free( pszTemp );

+				}

+				else createMessageFromPchar( pStart );

+			}

+

+			cbInBuf -= pEnd - pStart;

+			pStart = pEnd;

+		}

+

+		// discard processed messages

+		if ( nLinesProcessed != 0 )

+			memmove(chBuf, pStart, cbInBuf+1);

+	}

+

+	if ( con ) {

+		Netlib_CloseHandle(con);

+		con = NULL;

+	}

+

+	// notify monitor objects that the connection has been closed

+	Notify(NULL);

+}

+

+void __cdecl CIrcProto::ThreadProc( void* )

+{

+	DoReceive(); 

+	m_info.Reset();

+}

+

+void CIrcProto::AddDCCSession(HANDLE, CDccSession* dcc)

+{

+	EnterCriticalSection(&m_dcc);

+

+	CDccSession* p = m_dcc_chats.find(dcc);

+	if ( p )

+		m_dcc_chats.remove( p );

+

+	m_dcc_chats.insert( dcc );

+

+	LeaveCriticalSection(&m_dcc);

+}

+

+void CIrcProto::AddDCCSession(DCCINFO*, CDccSession* dcc)

+{

+	EnterCriticalSection(&m_dcc);

+

+	m_dcc_xfers.insert( dcc );

+

+	LeaveCriticalSection(&m_dcc);

+}

+

+void CIrcProto::RemoveDCCSession(HANDLE hContact)

+{

+	EnterCriticalSection(&m_dcc);

+

+	for ( int i=0; i < m_dcc_chats.getCount(); i++ )

+		if ( m_dcc_chats[i]->di->hContact == hContact ) {

+			m_dcc_chats.remove( i );

+			break;

+		}

+

+	LeaveCriticalSection(&m_dcc);

+}

+

+void CIrcProto::RemoveDCCSession(DCCINFO* pdci)

+{

+	EnterCriticalSection(&m_dcc);

+

+	for ( int i=0; i < m_dcc_xfers.getCount(); i++ )

+		if ( m_dcc_xfers[i]->di == pdci ) {

+			m_dcc_xfers.remove( i );

+			break;

+		}

+

+	LeaveCriticalSection(&m_dcc);

+}

+

+CDccSession* CIrcProto::FindDCCSession(HANDLE hContact)

+{

+	EnterCriticalSection(&m_dcc);

+

+	for ( int i=0; i < m_dcc_chats.getCount(); i++ )

+		if ( m_dcc_chats[i]->di->hContact == hContact ) {

+			LeaveCriticalSection(&m_dcc);

+			return m_dcc_chats[ i ];

+		}

+

+	LeaveCriticalSection(&m_dcc);

+	return 0;

+}

+

+CDccSession* CIrcProto::FindDCCSession(DCCINFO* pdci)

+{

+	EnterCriticalSection(&m_dcc);

+

+	for ( int i=0; i < m_dcc_xfers.getCount(); i++ )

+		if ( m_dcc_xfers[i]->di == pdci ) {

+			LeaveCriticalSection(&m_dcc);

+			return m_dcc_xfers[ i ];

+		}

+

+	LeaveCriticalSection(&m_dcc);

+	return 0;

+}

+

+CDccSession* CIrcProto::FindDCCSendByPort(int iPort)

+{

+	EnterCriticalSection(&m_dcc);

+

+	for ( int i=0; i < m_dcc_xfers.getCount(); i++ ) {

+		CDccSession* p = m_dcc_xfers[i];

+		if ( p->di->iType == DCC_SEND && p->di->bSender && iPort == p->di->iPort ) {

+			LeaveCriticalSection(&m_dcc);

+			return p;

+		}

+	}

+

+	LeaveCriticalSection(&m_dcc);

+	return 0;

+}

+

+CDccSession* CIrcProto::FindDCCRecvByPortAndName(int iPort, const TCHAR* szName)

+{

+	EnterCriticalSection(&m_dcc);

+

+	for ( int i=0; i < m_dcc_xfers.getCount(); i++ ) {

+		CDccSession* p = m_dcc_xfers[i];

+		DBVARIANT dbv;

+		if ( !getTString(p->di->hContact, "Nick", &dbv)) {

+			if ( p->di->iType == DCC_SEND && !p->di->bSender && !lstrcmpi( szName, dbv.ptszVal) && iPort == p->di->iPort ) {

+				DBFreeVariant(&dbv);

+				LeaveCriticalSection(&m_dcc);

+				return p;

+			}

+			DBFreeVariant(&dbv);

+		}

+	}

+

+	LeaveCriticalSection(&m_dcc);

+	return 0;

+}

+

+CDccSession* CIrcProto::FindPassiveDCCSend(int iToken)

+{

+	EnterCriticalSection(&m_dcc);

+

+	for ( int i=0; i < m_dcc_xfers.getCount(); i++ ) {

+		if ( m_dcc_xfers[ i ]->iToken == iToken ) {

+			LeaveCriticalSection(&m_dcc);

+			return m_dcc_xfers[ i ];

+		}

+	}

+

+	LeaveCriticalSection(&m_dcc);

+	return 0;

+}

+

+CDccSession* CIrcProto::FindPassiveDCCRecv(CMString sName, CMString sToken)

+{

+	EnterCriticalSection(&m_dcc);

+

+	for ( int i=0; i < m_dcc_xfers.getCount(); i++ ) {

+		CDccSession* p = m_dcc_xfers[i];

+		if ( sToken == p->di->sToken && sName == p->di->sContactName ) {

+			LeaveCriticalSection(&m_dcc);

+			return p;

+		}

+	}

+	LeaveCriticalSection(&m_dcc);

+	return 0;

+}

+

+void CIrcProto::DisconnectAllDCCSessions(bool Shutdown)

+{

+	EnterCriticalSection(&m_dcc);

+

+	for ( int i=0; i < m_dcc_chats.getCount(); i++ )

+		if ( m_disconnectDCCChats || Shutdown )

+			m_dcc_chats[i]->Disconnect();

+

+	LeaveCriticalSection(&m_dcc);

+}

+

+void CIrcProto::CheckDCCTimeout(void)

+{

+	EnterCriticalSection(&m_dcc);

+

+	for ( int i=0; i < m_dcc_chats.getCount(); i++ ) {

+		CDccSession* p = m_dcc_chats[i];

+		if ( time(0) > p->tLastActivity + DCCCHATTIMEOUT )

+			p->Disconnect();

+	}

+

+	for ( int j=0; j < m_dcc_xfers.getCount(); j++ ) {

+		CDccSession* p = m_dcc_xfers[j];

+		if ( time(0) > p->tLastActivity + DCCSENDTIMEOUT )

+			p->Disconnect();

+	}

+

+	LeaveCriticalSection(&m_dcc);

+}

+

+////////////////////////////////////////////////////////////////////

+

+CIrcIgnoreItem::CIrcIgnoreItem( const TCHAR* _mask, const TCHAR* _flags, const TCHAR* _network ) :

+	mask( _mask ),

+	flags( _flags ),

+	network( _network )

+{

+}

+

+CIrcIgnoreItem::CIrcIgnoreItem( int codepage, const char* _mask, const char* _flags, const char* _network ) :

+	mask( (TCHAR *)_A2T( _mask, codepage )),

+	flags( (TCHAR *)_A2T( _flags, codepage )),

+	network( (TCHAR *)_A2T( _network, codepage ))

+{

+}

+

+CIrcIgnoreItem::~CIrcIgnoreItem()

+{

+}

+

+////////////////////////////////////////////////////////////////////

+

+CIrcSessionInfo::CIrcSessionInfo() :

+	iPort(0),

+	bIdentServer(false),

+	iIdentServerPort(0)

+{

+}

+

+CIrcSessionInfo::CIrcSessionInfo(const CIrcSessionInfo& si) :

+	sServer(si.sServer),

+	sServerName(si.sServerName),

+	iPort(si.iPort),

+	sNick(si.sNick),

+	sUserID(si.sUserID),

+	sFullName(si.sFullName),

+	sPassword(si.sPassword),

+	bIdentServer(si.bIdentServer),

+	m_iSSL(si.m_iSSL),

+	sIdentServerType(si.sIdentServerType),

+	sNetwork(si.sNetwork),

+	iIdentServerPort(si.iIdentServerPort)

+{

+}

+

+void CIrcSessionInfo::Reset()

+{

+	sServer = "";

+	sServerName = _T("");

+	iPort = 0;

+	sNick = _T("");

+	sUserID = _T("");

+	sFullName = _T("");

+	sPassword = "";

+	bIdentServer = false;

+	bNickFlag = false;

+	m_iSSL = 0;

+	sIdentServerType = _T("");

+	iIdentServerPort = 0;

+	sNetwork = _T("");

+}

+

+////////////////////////////////////////////////////////////////////

+

+void CIrcProto::OnIrcMessage(const CIrcMessage* pmsg)

+{

+	if ( pmsg != NULL ) {

+		PfnIrcMessageHandler pfn = FindMethod( pmsg->sCommand.c_str());

+		if ( pfn ) {

+			// call member function. if it returns 'false',

+			// call the default handling

+			__try

+			{

+				if ( !(this->*pfn)( pmsg ))

+					OnIrcDefault( pmsg );

+			}

+			__except( EXCEPTION_EXECUTE_HANDLER ) // dedicated to Sava :)

+			{

+				DoNetlibLog( "IRC handler feels sick: %S", pmsg->sCommand.c_str());

+			}

+		}

+		else // handler not found. call default handler

+			OnIrcDefault( pmsg );

+	}

+	else OnIrcDisconnected();

+}

+

+PfnIrcMessageHandler CIrcProto::FindMethod(const TCHAR* lpszName)

+{

+	CIrcHandler temp( lpszName, NULL );

+	CIrcHandler* p = m_handlers.find( &temp );

+	return ( p == NULL ) ? NULL : p->m_handler;

+}

+

+////////////////////////////////////////////////////////////////////

+

+#define IPC_ADDR_SIZE				4		/* Size of IP address, change for IPv6. */

+

+char* ConvertIntegerToIP(unsigned long int_ip_addr)

+{

+	IN_ADDR intemp;

+	IN_ADDR in;

+	intemp.S_un.S_addr = int_ip_addr;

+

+	in.S_un.S_un_b.s_b1 = intemp.S_un.S_un_b.s_b4;

+	in.S_un.S_un_b.s_b2 = intemp.S_un.S_un_b.s_b3;

+	in.S_un.S_un_b.s_b3 = intemp.S_un.S_un_b.s_b2;

+	in.S_un.S_un_b.s_b4 = intemp.S_un.S_un_b.s_b1;

+

+	return inet_ntoa( in );

+}

+

+unsigned long ConvertIPToInteger( char* IP )

+{

+	IN_ADDR in;

+	IN_ADDR intemp;

+

+	if ( IP == 0 || lstrlenA(IP) == 0)

+		return 0;

+

+	intemp.S_un.S_addr = inet_addr(IP);

+

+	in.S_un.S_un_b.s_b1 = intemp.S_un.S_un_b.s_b4;

+	in.S_un.S_un_b.s_b2 = intemp.S_un.S_un_b.s_b3;

+	in.S_un.S_un_b.s_b3 = intemp.S_un.S_un_b.s_b2;

+	in.S_un.S_un_b.s_b4 = intemp.S_un.S_un_b.s_b1;

+	return in.S_un.S_addr;

+}

+

+////////////////////////////////////////////////////////////////////

+

+// initialize basic stuff needed for the dcc objects, also start a timer for checking the status of connections (timeouts)

+CDccSession::CDccSession( CIrcProto* _pro, DCCINFO* pdci ) :

+	m_proto( _pro ),

+	NewFileName(0),

+	dwWhatNeedsDoing(0),

+	tLastPercentageUpdate(0),

+	dwTotal(0),

+	iGlobalToken(),

+	dwResumePos(0),

+	hEvent(0),

+	con(0),

+	hBindPort(0)

+{

+	tLastActivity = time(0);

+

+	di = pdci; // Setup values passed to the constructor

+

+	ZeroMemory(&pfts, sizeof(PROTOFILETRANSFERSTATUS));

+	pfts.cbSize = sizeof(PROTOFILETRANSFERSTATUS);

+

+	if(di->iType == DCC_SEND && di->bSender == false)

+		hEvent = CreateEvent(NULL, TRUE, FALSE, NULL);

+

+	if(nDcc == 0)

+		m_proto->SetChatTimer(m_proto->DCCTimer, 20*1000, DCCTimerProc);

+

+	nDcc++; // increase the count of existing objects

+

+	iGlobalToken++;

+	if(iGlobalToken == 1000)

+		iGlobalToken = 1;

+	iToken = iGlobalToken;

+

+	iPacketSize = m_proto->getWord( "PacketSize", 4096 );

+

+	if ( di->dwAdr )

+		m_proto->setDword(di->hContact, "IP", di->dwAdr); // mtooltip stuff

+}

+

+CDccSession::~CDccSession() // destroy all that needs destroying

+{

+	if ( di->iType == DCC_SEND ) {

+		// ack SUCCESS or FAILURE

+		if (dwTotal == di->dwSize )

+			ProtoBroadcastAck(m_proto->m_szModuleName, di->hContact, ACKTYPE_FILE, ACKRESULT_SUCCESS, (void *)di, 0);

+		else

+			ProtoBroadcastAck(m_proto->m_szModuleName, di->hContact, ACKTYPE_FILE, ACKRESULT_FAILED, (void *)di, 0);

+	}

+

+	if ( di->iType == DCC_CHAT ) {

+		CDccSession* dcc = m_proto->FindDCCSession(di->hContact);

+		if ( dcc && this == dcc ) {

+			m_proto->RemoveDCCSession(di->hContact); // objects automatically remove themselves from the list of objects

+			m_proto->setWord(di->hContact, "Status", ID_STATUS_OFFLINE);

+	}	}

+

+	if ( di->iType == DCC_SEND )

+		m_proto->RemoveDCCSession( di ); 

+

+	if ( hEvent != NULL ) {

+		SetEvent( hEvent );

+		CloseHandle( hEvent );

+		hEvent = NULL;

+	}

+

+	delete di;

+	nDcc--;

+

+	if ( nDcc < 0 )

+		nDcc = 0;

+

+	if ( nDcc == 0 )

+		m_proto->KillChatTimer( m_proto->DCCTimer ); // destroy the timer when no dcc objects remain

+}

+

+int CDccSession::NLSend(const unsigned char* buf, int cbBuf) 

+{

+	tLastActivity = time(0);

+

+	if (con)

+		return Netlib_Send(con, (const char*)buf, cbBuf, di->iType == DCC_CHAT?MSG_DUMPASTEXT:MSG_NODUMP);

+

+	return 0;

+}

+

+int CDccSession::NLReceive(const unsigned char* buf, int cbBuf)

+{

+	int n = 0;

+

+	if(con)

+		n = Netlib_Recv(con, (char*)buf, cbBuf, di->iType == DCC_CHAT?MSG_DUMPASTEXT:MSG_NODUMP);

+

+	tLastActivity = time(0);

+	return n;

+}

+

+int CDccSession::SendStuff(const TCHAR* fmt)

+{

+	String buf = _T2A( fmt, m_proto->getCodepage());

+	return NLSend(( const unsigned char* )buf.c_str(), buf.GetLength());

+}

+

+// called when the user wants to connect/create a new connection given the parameters in the constructor.

+int CDccSession::Connect()

+{

+	if ( !di->bSender || di->bReverse ) {

+		if ( !con )

+			mir_forkthread( ConnectProc, this ); // spawn a new thread for time consuming activities, ie when connecting to a remote computer

+		return true;

+	}

+

+	if ( !con )

+		return SetupConnection(); // no need to spawn thread for setting up a listening port locally

+

+	return false; 

+}

+

+void __cdecl CDccSession::ConnectProc( void *pparam )

+{

+	CDccSession* pThis = (CDccSession*)pparam;

+	if ( !pThis->con )

+		pThis->SetupConnection();

+}

+

+// small function to setup the address and port of the remote computer fror passive filetransfers

+void CDccSession::SetupPassive(DWORD adress, DWORD port)

+{

+	di->dwAdr = adress;

+	di->iPort = (int)port;

+

+	m_proto->setDword(di->hContact, "IP", di->dwAdr); // mtooltip stuff

+}

+

+int CDccSession::SetupConnection()

+{

+	// if it is a dcc chat connection make sure it is "offline" to begin with, since no connection exists still

+	if ( di->iType == DCC_CHAT )

+		m_proto->setWord(di->hContact, "Status", ID_STATUS_OFFLINE);

+

+	// Set up stuff needed for the filetransfer dialog (if it is a filetransfer)

+	if ( di->iType == DCC_SEND ) {

+		file[0] = ( TCHAR* )di->sFileAndPath.c_str();

+		file[1] = 0;

+

+		pfts.tszCurrentFile = ( TCHAR* )di->sFileAndPath.c_str();

+		pfts.tszWorkingDir =	( TCHAR* )di->sPath.c_str();

+		pfts.hContact = di->hContact;

+		pfts.flags = PFTS_TCHAR + ((di->bSender) ? PFTS_SENDING : PFTS_RECEIVING);

+		pfts.totalFiles =	1;

+		pfts.currentFileNumber = 0;

+		pfts.totalBytes =	di->dwSize;

+		pfts.currentFileSize = pfts.totalBytes;

+		pfts.ptszFiles = file;

+		pfts.totalProgress = 0;

+		pfts.currentFileProgress =	0;

+		pfts.currentFileTime = (unsigned long)time(0);

+	}

+

+	// create a listening socket for outgoing chat/send requests. The remote computer connects to this computer. Used for both chat and filetransfer.

+	if ( di->bSender && !di->bReverse ) {

+		NETLIBBIND nb = {0};

+		nb.cbSize = sizeof(NETLIBBIND);

+		nb.pfnNewConnectionV2 = DoIncomingDcc; // this is the (helper) function to be called once an incoming connection is made. The 'real' function that is called is IncomingConnection()

+		nb.pExtra = (void *)this; 

+		nb.wPort = 0;

+		hBindPort = (HANDLE)CallService( MS_NETLIB_BINDPORT, (WPARAM)m_proto->hNetlibDCC,(LPARAM) &nb);

+

+		if ( hBindPort == NULL ) {

+			delete this; // dcc objects destroy themselves when the connection has been closed or failed for some reasson.

+			return 0;

+		}

+

+		di->iPort = nb.wPort; // store the port internally so it is possible to search for it (for resuming of filetransfers purposes)

+		return nb.wPort; // return the created port so it can be sent to the remote computer in a ctcp/dcc command

+	}

+

+	// If a remote computer initiates a chat session this is used to connect to the remote computer (user already accepted at this point). 

+	// also used for connecting to a remote computer for remote file transfers

+	if ( di->iType == DCC_CHAT && !di->bSender || di->iType == DCC_SEND && di->bSender && di->bReverse ) {

+		NETLIBOPENCONNECTION ncon = { 0 };

+		ncon.cbSize = sizeof(ncon);

+		ncon.szHost = ConvertIntegerToIP(di->dwAdr); 

+		ncon.wPort = (WORD) di->iPort;

+		con = (HANDLE) CallService( MS_NETLIB_OPENCONNECTION, (WPARAM)m_proto->hNetlibDCC, (LPARAM) & ncon);

+	}

+

+

+	// If a remote computer initiates a filetransfer this is used to connect to that computer (the user has chosen to accept but it is possible the file exists/needs to be resumed etc still)

+	if ( di->iType == DCC_SEND && !di->bSender ) {

+

+		// this following code is for miranda to be able to show the resume/overwrite etc dialog if the file that we are receiving already exists. 

+		// It must be done before we create the connection or else the other party will begin sending packets while the user is still deciding if 

+		// s/he wants to resume/cancel or whatever. Just the way dcc is...

+

+		// if the file exists (dialog is shown) WaitForSingleObject() till the dialog is closed and PS_FILERESUME has been processed. 

+		// dwWhatNeedsDoing will be set using InterlockedExchange() (from other parts of the code depending on action) before SetEvent() is called.

+		// If the user has chosen rename then InterlockedExchange() will be used for setting NewFileName to a string containing the new name.

+		// Furthermore dwResumePos will be set using InterlockedExchange() to indicate what the file position to start from is.

+		if ( ProtoBroadcastAck(m_proto->m_szModuleName, di->hContact, ACKTYPE_FILE, ACKRESULT_FILERESUME, (void *)di, (LPARAM)&pfts)) { 

+			WaitForSingleObject( hEvent, INFINITE );

+			switch( dwWhatNeedsDoing ) {

+			case FILERESUME_RENAME:

+				// If the user has chosen to rename the file we need to change variables accordingly. NewFileName has been set using

+				// InterlockedExchange()

+				if ( NewFileName) { // the user has chosen to rename the new incoming file.

+					di->sFileAndPath = NewFileName;

+

+					int i = di->sFileAndPath.ReverseFind( '\\' );

+					if ( i != -1 ) {

+						di->sPath = di->sFileAndPath.Mid(0, i+1);

+						di->sFile = di->sFileAndPath.Mid(i+1, di->sFileAndPath.GetLength());

+					}

+

+					pfts.tszCurrentFile = ( TCHAR* )di->sFileAndPath.c_str();

+					pfts.tszWorkingDir =	( TCHAR* )di->sPath.c_str();

+					pfts.totalBytes = di->dwSize;

+					pfts.currentFileSize = pfts.totalBytes;

+					

+					delete[] NewFileName;

+					NewFileName = NULL;

+				}

+				break;

+

+			case FILERESUME_OVERWRITE:	

+			case FILERESUME_RESUME	:	

+				// no action needed at this point, just break out of the switch statement

+				break;

+

+			case FILERESUME_CANCEL	:

+				return FALSE; 

+

+			case FILERESUME_SKIP	:

+			default:

+				delete this; // per usual dcc objects destroy themselves when they fail or when connection is closed

+				return FALSE; 

+		}	}			

+

+		// hack for passive filetransfers

+		if ( di->iType == DCC_SEND && !di->bSender && di->bReverse ) {

+			NETLIBBIND nb = {0};

+			nb.cbSize = sizeof(NETLIBBIND);

+			nb.pfnNewConnectionV2 = DoIncomingDcc; // this is the (helper) function to be called once an incoming connection is made. The 'real' function that is called is IncomingConnection()

+			nb.pExtra = (void *)this; 

+			nb.wPort = 0;

+			hBindPort = (HANDLE)CallService( MS_NETLIB_BINDPORT, (WPARAM)m_proto->hNetlibDCC,(LPARAM) &nb);

+

+			if ( hBindPort == NULL ) {

+				m_proto->DoEvent(GC_EVENT_INFORMATION, 0, m_proto->m_info.sNick.c_str(), LPGENT("DCC ERROR: Unable to bind local port for passive filetransfer"), NULL, NULL, NULL, true, false); 

+				delete this; // dcc objects destroy themselves when the connection has been closed or failed for some reasson.

+				return 0;

+			}

+

+			di->iPort = nb.wPort; // store the port internally so it is possible to search for it (for resuming of filetransfers purposes)

+

+			CMString sFileWithQuotes = di->sFile;

+

+			// if spaces in the filename surround with quotes

+			if ( sFileWithQuotes.Find( ' ', 0 ) != -1 ) {

+				sFileWithQuotes.Insert( 0, _T("\""));

+				sFileWithQuotes.Insert( sFileWithQuotes.GetLength(), _T("\""));

+			}

+

+			// send out DCC RECV command for passive filetransfers

+			unsigned long ulAdr = 0;

+			if ( m_proto->m_manualHost )

+				ulAdr = ConvertIPToInteger( m_proto->m_mySpecifiedHostIP );				

+			else

+				ulAdr = m_proto->m_IPFromServer ? ConvertIPToInteger( m_proto->m_myHost ) : nb.dwExternalIP;

+

+			if ( di->iPort && ulAdr )

+				m_proto->PostIrcMessage( _T("/CTCP %s DCC SEND %s %u %u %I64u %s"), di->sContactName.c_str(), sFileWithQuotes.c_str(), ulAdr, di->iPort, di->dwSize, di->sToken.c_str());

+

+			return TRUE; 			

+		}

+

+		// connect to the remote computer from which you are receiving the file (now all actions to take (resume/overwrite etc) have been decided

+		NETLIBOPENCONNECTION ncon = { 0 };

+		ncon.cbSize = sizeof(ncon);

+		ncon.szHost = ConvertIntegerToIP(di->dwAdr);

+		ncon.wPort = (WORD) di->iPort;

+

+		con = (HANDLE) CallService( MS_NETLIB_OPENCONNECTION, (WPARAM)m_proto->hNetlibDCC, (LPARAM) & ncon);

+	}

+

+	// if for some reason the plugin has failed to connect to the remote computer the object is destroyed.

+	if ( con == NULL ) {

+		delete this;

+		return FALSE; // failed to connect

+	}

+

+	// if it is a chat connection set the user to online now since we now know there is a connection

+	if ( di->iType == DCC_CHAT )

+		m_proto->setWord(di->hContact, "Status", ID_STATUS_ONLINE);

+

+	// spawn a new thread to handle receiving/sending of data for the new chat/filetransfer connection to the remote computer

+	mir_forkthread( ThreadProc, this  );

+	

+	return con != NULL;

+}

+

+// called by netlib for incoming connections on a listening socket (chat/filetransfer)

+int CDccSession::IncomingConnection(HANDLE hConnection, DWORD dwIP)

+{

+	con = hConnection;

+	if ( con == NULL ) {

+		delete this;

+		return false; // failed to connect

+	}

+

+	m_proto->setDword(di->hContact, "IP", dwIP); // mToolTip stuff

+

+	if ( di->iType == DCC_CHAT )

+		m_proto->setWord(di->hContact, "Status", ID_STATUS_ONLINE); // set chat to online

+

+	// same as above, spawn a new thread to handle receiving/sending of data for the new incoming chat/filetransfer connection  

+	mir_forkthread(ThreadProc, this  );

+	return true;

+}

+

+// here we decide which function to use for communicating with the remote computer, depending on connection type

+void __cdecl CDccSession::ThreadProc(void *pparam) 

+{

+	CDccSession* pThis = (CDccSession*)pparam;

+

+	// if it is an incoming connection on a listening port, then we should close the listenting port so only one can connect (the one you offered

+	// the connection to) can connect and not evil IRCopers with haxxored IRCDs

+	if ( pThis->hBindPort ) {

+		Netlib_CloseHandle(pThis->hBindPort);

+		pThis->hBindPort = NULL;

+	}

+

+	if ( pThis->di->iType == DCC_CHAT )

+		pThis->DoChatReceive(); // dcc chat

+

+	else if ( !pThis->di->bSender )

+		pThis->DoReceiveFile(); // receive a file

+

+	else if ( pThis->di->bSender )

+		pThis->DoSendFile(); // send a file

+}

+

+// this is done when the user is initiating a filetransfer to a remote computer

+void CDccSession::DoSendFile() 

+{

+	// initialize the filetransfer dialog

+	ProtoBroadcastAck(m_proto->m_szModuleName, di->hContact, ACKTYPE_FILE, ACKRESULT_INITIALISING, (void *)di, 0);

+	ProtoBroadcastAck(m_proto->m_szModuleName, di->hContact, ACKTYPE_FILE, ACKRESULT_NEXTFILE, (void *)di, 0);

+

+	WORD wPacketSize = m_proto->getWord( "DCCPacketSize", 1024*4);

+

+	if ( wPacketSize < 256 )

+		wPacketSize = 256;

+

+	if ( wPacketSize > 32 * 1024 )

+		wPacketSize = 32 * 1024;

+

+	BYTE* chBuf = new BYTE[wPacketSize+1];

+

+	// is there a connection?

+	if ( con ) {

+		// open the file for reading

+		int hFile = _topen( di->sFileAndPath.c_str(), _O_RDONLY | _O_BINARY, _S_IREAD);

+		if (hFile >= 0) {	

+			unsigned __int64 dwLastAck = 0;

+

+			// if the user has chosen to resume a file, dwResumePos will contain a value (set using InterlockedExchange())

+			// and then the variables and the file pointer are changed accordingly.

+			if ( dwResumePos && dwWhatNeedsDoing == FILERESUME_RESUME ) {

+				_lseeki64(hFile, dwResumePos, SEEK_SET);

+				dwTotal = dwResumePos;

+				dwLastAck = dwResumePos;

+				pfts.totalProgress = dwResumePos;

+				pfts.currentFileProgress = dwResumePos;

+			}

+

+			// initial ack to set the 'percentage-ready meter' to the correct value

+			ProtoBroadcastAck(m_proto->m_szModuleName, di->hContact, ACKTYPE_FILE, ACKRESULT_DATA, (void *)di, (LPARAM) &pfts);

+			

+			tLastActivity = time(0);

+

+			// create a packet receiver to handle receiving ack's from the remote computer.

+			HANDLE hPackrcver = (HANDLE)CallService( MS_NETLIB_CREATEPACKETRECVER, (WPARAM)con, (LPARAM)sizeof(DWORD));

+			NETLIBPACKETRECVER npr;

+			npr.cbSize = sizeof(NETLIBPACKETRECVER);

+			npr.dwTimeout = 60*1000;

+			npr.bufferSize = sizeof(DWORD); 

+			npr.bytesUsed = 0;

+

+			// until the connection is dropped it will spin around in this while() loop

+			while ( con ) {

+				// read a packet

+				int iRead = _read(hFile, chBuf, wPacketSize);

+				if ( iRead <= 0 )

+					break; // break out if everything has already been read

+

+				// send the package

+				int cbSent = NLSend((unsigned char*)chBuf, iRead);

+				if ( cbSent <= 0 )

+					break; // break out if connection is lost or a transmission error has occured

+

+				if ( !con )

+					break;

+

+				dwTotal += cbSent;

+

+				// block connection and receive ack's from remote computer (if applicable)

+				if ( m_proto->m_DCCMode == 0 ) {

+					DWORD dwRead = 0;

+					DWORD dwPacket = NULL;

+

+					do {					

+						dwRead = CallService( MS_NETLIB_GETMOREPACKETS, (WPARAM)hPackrcver, (LPARAM)&npr);

+						npr.bytesUsed = sizeof(DWORD);          

+

+						if ( dwRead <= 0)

+							break; // connection closed, or a timeout occurred.

+

+						dwPacket  = *(DWORD*)npr.buffer;

+						dwLastAck = ntohl(dwPacket);

+

+					}

+						while(con && dwTotal != dwLastAck);

+

+					if ( !con || dwRead <= 0 )

+						goto DCC_STOP;

+				}

+

+				if ( m_proto->m_DCCMode == 1 ) {

+					DWORD dwRead = 0;

+					DWORD dwPacket = 0;

+

+					do {					

+						dwRead = CallService( MS_NETLIB_GETMOREPACKETS, (WPARAM)hPackrcver, (LPARAM)&npr);

+						npr.bytesUsed = sizeof(DWORD);          

+						if ( dwRead <= 0)

+							break; // connection closed, or a timeout occurred.

+

+						dwPacket =  *(DWORD*)npr.buffer;

+						dwLastAck = ntohl(dwPacket);

+					}

+						while(con && (di->dwSize != dwTotal

+						&& dwTotal - dwLastAck >= 100*1024

+						|| di->dwSize == dwTotal // get the last packets when the whole file has been sent

+						&& dwTotal != dwLastAck));

+

+					if ( !con || dwRead <= 0 )

+						goto DCC_STOP;

+				}				

+

+				// update the filetransfer dialog's 'percentage-ready meter' once per second only to save cpu

+				if ( tLastPercentageUpdate < time(0)) {

+					tLastPercentageUpdate = time(0);

+					pfts.totalProgress = dwTotal;

+					pfts.currentFileProgress = dwTotal;

+					ProtoBroadcastAck(m_proto->m_szModuleName, di->hContact, ACKTYPE_FILE, ACKRESULT_DATA, (void *)di, (LPARAM) &pfts);

+				}

+

+				// close the connection once the whole file has been sent an completely ack'ed

+				if ( dwLastAck >= di->dwSize ) {

+					Netlib_CloseHandle(con);

+					con = NULL;

+			}	}

+

+DCC_STOP:

+			// need to close the connection if it isn't allready

+			if ( con ) {

+				Netlib_CloseHandle(con);

+				con = NULL;

+			}

+

+			// ack the progress one final time

+			tLastActivity = time(0);

+			pfts.totalProgress = dwTotal;

+			pfts.currentFileProgress = dwTotal;

+			ProtoBroadcastAck(m_proto->m_szModuleName, di->hContact, ACKTYPE_FILE, ACKRESULT_DATA, (void *)di, (LPARAM) &pfts);

+

+			_close(hFile);

+		}

+		else // file was not possible to open for reading

+		{

+			ProtoBroadcastAck(m_proto->m_szModuleName, di->hContact, ACKTYPE_FILE, ACKRESULT_FAILED, (void *)di, 0);

+			if ( con ) {

+				Netlib_CloseHandle(con);

+				con = NULL;

+	}	}	}

+

+	delete []chBuf;

+	delete this; // ... and hopefully all went right, cuz here the object is deleted in any case

+}

+

+// This is called when receiving a file from a remote computer.

+void CDccSession::DoReceiveFile() 

+{

+	// initialize the filetransfer dialog

+	ProtoBroadcastAck( m_proto->m_szModuleName, di->hContact, ACKTYPE_FILE, ACKRESULT_INITIALISING, (void *)di, 0);

+

+	BYTE chBuf[1024*32+1];

+

+	// do some stupid thing so  the filetransfer dialog shows the right thing

+	ProtoBroadcastAck(m_proto->m_szModuleName, di->hContact, ACKTYPE_FILE, ACKRESULT_NEXTFILE, (void *)di, 0);

+

+	// open the file for writing (and reading in case it is a resume)

+	int hFile = _topen( di->sFileAndPath.c_str(), 

+		(dwWhatNeedsDoing == FILERESUME_RESUME ? _O_APPEND : _O_TRUNC | _O_CREAT) | _O_RDWR | _O_BINARY, 

+		_S_IREAD | _S_IWRITE);

+	if ( hFile >= 0 ) {	

+		unsigned __int64 dwLastAck = 0;

+

+		// dwResumePos and dwWhatNeedsDoing has possibly been set using InterlockedExchange()

+		// if set it is a resume and we adjust variables and the file pointer accordingly.

+		if ( dwResumePos && dwWhatNeedsDoing == FILERESUME_RESUME ) {

+			_lseeki64(hFile, dwResumePos, SEEK_SET);

+			dwTotal = dwResumePos;

+			dwLastAck = dwResumePos;

+			pfts.totalProgress = dwResumePos;

+			pfts.currentFileProgress = dwResumePos;

+		}

+

+		// send an initial ack for the percentage-ready meter

+		ProtoBroadcastAck(m_proto->m_szModuleName, di->hContact, ACKTYPE_FILE, ACKRESULT_DATA, (void *)di, (LPARAM) &pfts);

+		

+		// the while loop will spin around till the connection is dropped, locally or by the remote computer.

+		while ( con ) {

+			// read

+			int cbRead = NLReceive((unsigned char*)chBuf, sizeof(chBuf));

+			if ( cbRead <= 0 )

+				break;

+			

+			// write it to the file

+			_write(hFile, chBuf, cbRead);

+

+			dwTotal += cbRead;

+

+			// this snippet sends out an ack for every 4 kb received in send ahead

+			// or every packet for normal mode

+			if ( !di->bTurbo ) {

+				DWORD no = dwTotal;

+				no = htonl(no);

+				NLSend((unsigned char *)&no, sizeof(DWORD));

+				dwLastAck = dwTotal;

+			}

+			else dwLastAck = dwTotal;

+

+			// sets the 'last update time' to check for timed out connections, and also make sure we only

+			// ack the 'percentage-ready meter' only once a second to save CPU.

+			if ( tLastPercentageUpdate < time( 0 )) {

+				tLastPercentageUpdate = time (0);

+				pfts.totalProgress = dwTotal;

+				pfts.currentFileProgress = dwTotal;

+				ProtoBroadcastAck(m_proto->m_szModuleName, di->hContact, ACKTYPE_FILE, ACKRESULT_DATA, (void *)di, (LPARAM) &pfts);

+			}	

+			

+			// if file size is known and everything is received then disconnect 

+			if ( di->dwSize && di->dwSize == dwTotal ) {

+				Netlib_CloseHandle(con);

+				con = NULL;

+		}	}

+		// receiving loop broken locally or by remote computer, just some cleaning up left....

+		

+		pfts.totalProgress = dwTotal;

+		pfts.currentFileProgress = dwTotal;

+		ProtoBroadcastAck(m_proto->m_szModuleName, di->hContact, ACKTYPE_FILE, ACKRESULT_DATA, (void *)di, (LPARAM) &pfts);

+		_close(hFile);

+	}

+	else  {

+		ProtoBroadcastAck(m_proto->m_szModuleName, di->hContact, ACKTYPE_FILE, ACKRESULT_FAILED, (void *)di, 0);

+		if ( con ) { // file not possible to open for writing so we ack FAILURE and close the handle

+			Netlib_CloseHandle(con);

+			con = NULL;

+	}	}

+

+	delete this; // and finally the object is deleted

+}

+

+// this function handles receiving text in dcc chats and then send it in the protochain. very uncomplicated...

+// For sending text the SendStuff() function is called (with the help of some function in CIrcProto to find the right

+// Dcc object). See CIrcProto for info on how the dcc objects are stored, retreived and deleted.

+

+void CDccSession::DoChatReceive()

+{

+	char chBuf[1024*4+1]; 

+	int cbInBuf = 0;

+	

+	// loop to spin around while there is a connection

+	while( con ) {

+		int cbRead;

+		int nLinesProcessed = 0;

+		

+		cbRead = NLReceive((unsigned char*)chBuf+cbInBuf, sizeof(chBuf)-cbInBuf-1);

+		if ( cbRead <= 0 )

+			break;

+

+		cbInBuf += cbRead;

+		chBuf[cbInBuf] = '\0';

+		

+		char* pStart = chBuf;

+		while( *pStart ) {

+			char* pEnd;

+			

+			// seek end-of-line

+			for(pEnd=pStart; *pEnd && *pEnd != '\r' && *pEnd != '\n'; ++pEnd)

+				;

+			if ( *pEnd == '\0' )

+				break; // uncomplete message. stop parsing.

+			

+			++nLinesProcessed;

+			

+			// replace end-of-line with NULLs and skip

+			while( *pEnd == '\r' || *pEnd == '\n' )

+				*pEnd++ = '\0';

+			

+			if ( *pStart ) {

+				// send it off to some messaging module

+

+				PROTORECVEVENT pre = {0};

+				pre.timestamp = (DWORD)time(NULL);

+//				pre.szMessage = (char*)DoColorCodes((TCHAR*)pStart, true, false); //!!!! // remove color codes

+				pre.szMessage = pStart;

+

+				CCSDATA ccs = {0}; 

+				ccs.szProtoService = PSR_MESSAGE;

+				ccs.hContact = di->hContact;

+				ccs.lParam = (LPARAM) &pre;

+				

+				CallService( MS_PROTO_CHAINRECV, 0, (LPARAM) & ccs);

+			}

+			

+			cbInBuf -= pEnd - pStart;

+			pStart = pEnd;

+		}

+		

+		// discard processed messages

+		if ( nLinesProcessed != 0 )

+			memmove(chBuf, pStart, cbInBuf+1);

+	}

+

+	delete this; // delete the object when the connection is dropped

+}

+

+// disconnect the stuff

+int CDccSession::Disconnect()

+{

+	if ( hBindPort ) {

+		Netlib_CloseHandle(hBindPort);

+		hBindPort = NULL;

+	}

+

+	// if 'con' exists it is cuz a connection exists. 

+	// Terminating 'con' will cause any spawned threads to die and then the object will destroy itself.

+	if ( con ) {

+		Netlib_CloseHandle(con);

+		con = NULL;

+	}

+	else delete this; // if 'con' do not exist (no connection made so far from the object) the object is destroyed

+

+	return TRUE;

+}

+

+////////////////////////////////////////////////////////////////////

+// check if the dcc chats should disconnect ( default 5 minute timeout )

+

+VOID CALLBACK DCCTimerProc( HWND, UINT, UINT_PTR idEvent, DWORD )

+{

+	CIrcProto* ppro = GetTimerOwner( idEvent );

+	if ( ppro )

+		ppro->CheckDCCTimeout();

+}

+

+// helper function for incoming dcc connections.

+void DoIncomingDcc(HANDLE hConnection, DWORD dwRemoteIP, void * p1)

+{

+	CDccSession* dcc = (CDccSession*)p1;

+	dcc->IncomingConnection(hConnection, dwRemoteIP);

+}

+

+// ident server

+

+void strdel( char* parBuffer, int len )

+{

+	char* p;

+	for ( p = parBuffer+len; *p != 0; p++ )

+		p[ -len ] = *p;

+

+	p[ -len ] = '\0';

+}

+

+void DoIdent(HANDLE hConnection, DWORD, void* extra )

+{

+	CIrcProto* ppro = ( CIrcProto* )extra;

+

+	char szBuf[1024];

+	int cbTotal = 0;

+

+	for (;;) {

+		int cbRead = Netlib_Recv(hConnection, szBuf+cbTotal, sizeof(szBuf)-1-cbTotal, 0);

+		if ( cbRead == SOCKET_ERROR || cbRead == 0)

+			break;

+

+		cbTotal += cbRead;

+		szBuf[cbTotal] = '\0';

+		

+LBL_Parse:

+		char* EOLPos = strstr(szBuf, "\r\n");

+		if (EOLPos == NULL)

+			continue;

+

+		EOLPos[0] = EOLPos[1] = '\0';

+		rtrim( szBuf );

+		ppro->DoNetlibLog("Got Ident request: %s", szBuf);

+

+		unsigned int PeerPortNrRcvd = 0, LocalPortNrRcvd = 0;

+		int iParamCnt = sscanf( szBuf, "%d , %d", &LocalPortNrRcvd, &PeerPortNrRcvd );

+

+		int cbLen = 0;

+		char buf[1024*4];

+

+		if (iParamCnt != 2)

+			cbLen = mir_snprintf(buf, SIZEOF(buf), "%s : ERROR : UNKNOWN-ERROR\r\n", szBuf);

+		else 

+		{

+			for (int i = 0; i < g_Instances.getCount(); i++) 

+			{

+				if (PeerPortNrRcvd == g_Instances[i]->m_info.iPort && LocalPortNrRcvd == g_Instances[i]->m_myLocalPort) 

+				{

+					cbLen = mir_snprintf(buf, SIZEOF(buf), "%s : USERID : " TCHAR_STR_PARAM " : " TCHAR_STR_PARAM "\r\n", 

+						szBuf, g_Instances[i]->m_info.sIdentServerType.c_str() , g_Instances[i]->m_info.sUserID.c_str());

+					break;

+				}

+			}

+

+			if (cbLen == 0)

+				cbLen = mir_snprintf(buf, SIZEOF(buf), "%s : ERROR : INVALID-PORT\r\n", szBuf);

+		}

+

+		if ( Netlib_Send(hConnection, (const char*)buf, cbLen, 0) > 0)

+			ppro->DoNetlibLog("Sent Ident answer: %s", buf);

+		else

+			ppro->DoNetlibLog("Sending Ident answer failed.");

+		

+		if ( ppro->m_identTimer )

+			break;

+

+		cbTotal -= EOLPos + 2 - szBuf;

+		strdel(szBuf, int(EOLPos + 2 - szBuf));

+		goto LBL_Parse;

+	}

+	Netlib_CloseHandle(hConnection);

+}