#!/usr/bin/python
# -*- vim: encoding: utf-8 -*-
# Yves Fischer, xapek.org 2009
import struct

from twisted.words.protocols import oscar
from twisted.internet import reactor, protocol
from twisted.internet.protocol import ClientFactory

CAP_TYPING  = '\x56\x3f\xc8\x09\x0b\x6f\x41\xbd\x9f\x79\x42\x26\x09\xdf\xa2\xf3'

class ExtendedBOSConnection( oscar.BOSConnection ):
    capabilities = [oscar.CAP_CHAT,CAP_TYPING]

    def __init__(self,s,p,**kwargs):
        oscar.BOSConnection.__init__(self, s, p,**kwargs)
 
    """
    handles typing SNAC
    """
    def oscar_04_14(self,snac):
        data = snac[3]
        if len(data) == len("\x00\x00\x00\x00\x00\x00\x00\x00\x00\x01\t222840035\x00\x02"):
            user = data[11:20]
            state = data[20:22]
            if state == "\x00\x00": #finish
                self.receiveTyping(user, "finish")
            elif state == "\x00\x01": #idle
                self.receiveTyping(user, "idle")
            elif state == "\x00\x02": #begin
                self.receiveTyping(user, "begin")
            else:
                print "Unknown state in typing snac\nuser %s\ndata %s\nsnac %s\nstate %X%X" % (user,data,snac,state[0],sate[1])
        else:
            print "komisches tpying snac"

    def receiveTyping(self, user, state):
        pass
        
    def initDone( self ):
        self.requestSelfInfo()
        self.requestSSI().addCallback(self.gotBuddyList)

    def shutdown( self ):
        pass

    def updateBuddy(self, user):
        print "updateBuddy %s" % user
 
    def gotBuddyList( self, buddylist ):
        self.activateSSI()
        self.setProfile("Forget ICQ, MSN, Yahoo and the other shitty protocols! Use XMPP/Jabber!")
        self.setIdleTime( 0 )
        self.clientReady()
        for user in buddylist[0][0].users:
            print "icq: Authorize %s" % user.name
            self.sendAuthorizationResponse(user.name, True, '')
 
    """message - utf8 """
    def receiveCleanMessage( self, user, message, flags ):
        raise NotImplementedError('receiveCleanMessage( self, user, message, flags )')

    def _getMessage(self,multiparts):
        message = None
        if len(multiparts[0]) == 2:
            if multiparts[0][1] == "unicode":
                message = unicode(multiparts[0][0])
            else:
                message = multiparts[0][0].decode(multiparts[0][1],'latin1')
        else:
            message = str(multiparts[0][0])
        return message

 
    def receiveMessage( self, user, multiparts, flags ):
        print "icq: receiveMessage(%s,%s,%s)" % (user,multiparts,flags)
        if flags != None and "auto" in flags:
            print "'auto' message, abort"
            return

        # because i cant receive the "budded added signal" i auth on every message
        self.sendAuthorizationResponse(user.name, True, '')

        #cleanup message
        try:
            message = self._getMessage( multiparts )
            #filter qip \x00CHAR\x00CHAR - qip sucks at unicode?
            message = filter(lambda x: x!=u"\x00", message)

            self.receiveCleanMessage( user, message, flags )
        except Exception,e:
            print "Exception: %s" % e

    def chatReceiveMessage( self, chat, user, message ):
        self.receiveMessage( self, user, message, [] )

    def sendAuthorizationResponse(self, uin, success, responsString):
        packet  = struct.pack("b", len(uin)) + uin
        if success:
            packet += struct.pack("b", 1)
        else:
            packet += struct.pack("b", 0)
        packet += struct.pack(">H", len(responsString)) + responsString
        self.sendSNACnr(0x13, 0x1a, packet)

    def sendMessage(self, user, messageUtf8):
        message = messageUtf8.encode('latin1','replace')
        oscar.BOSConnection.sendMessage(self,user,message)

    def connectionLost(self,*args,**kwargs):
        print "Connection lost"
        oscar.BOSConnection.connectionLost(self,*args,**kwargs)

class Authenticator( oscar.OscarAuthenticator ):
    BOSClass = ExtendedBOSConnection
    def connectionLost(self,reason):
        oscar.OscarAuthenticator.connectionLost(self,reason)
        self.factory.connectionLost(reason)

class ReconnectOscarFactory(ClientFactory):
    OAClass=Authenticator
    def __init__(self, uid, password,icq=1):
        self.uid = uid
        self.password = password
        self.icq = icq

    def buildProtocol(self, addr):
        p = self.__class__.OAClass(self.uid, self.password,icq=self.icq)
        p.factory = self
        return p
    
    def startedConnecting(self, connector):
        print 'Started to connect to oscar'

    def connectionLost(self,reason):
        print "CONECTION LOST - start njew factory"
        reactor.callLater(4.0, reactor.connectTCP, 
                          'login.icq.com', 5238, self)
#        reactor.connectTCP('login.icq.com', 5238, OscarFactory(self.uin, self.password,icq=1))