transpub/transWhat/session.py

import utils
import logging
import urllib
import time

# from PIL import Image
import sys
import os

reload(sys)
sys.setdefaultencoding("utf-8")

from yowsup.layers.protocol_media.mediauploader import MediaUploader
from yowsup.layers.protocol_media.mediadownloader import MediaDownloader

from Spectrum2 import protocol_pb2

from buddy import BuddyList
from threading import Timer
from group import Group
from bot import Bot
import deferred
from deferred import call
from yowsupwrapper import YowsupApp


class MsgIDs:
	def __init__(self, xmppId, waId):
		self.xmppId = xmppId
		self.waId = waId
		self.cnt = 0

class Session(YowsupApp):
	broadcast_prefix = '\U0001F4E2 '

	def __init__(self, backend, user, legacyName, extra):
		super(Session, self).__init__()
		self.logger = logging.getLogger(self.__class__.__name__)
		self.logger.info("Created: %s" % legacyName)

		self.backend = backend
		self.user = user
		self.legacyName = legacyName

		self.status = protocol_pb2.STATUS_NONE
		self.statusMessage = ''

		self.groups = {}
		self.gotGroupList = False
		# Functions to exectute when logged in via yowsup
		self.loginQueue = []
		self.joinRoomQueue = []
		self.presenceRequested = []
		self.offlineQueue = []
		self.msgIDs = { }
		self.groupOfflineQueue = { }
		self.loggedIn = False
		self.recvMsgIDs = []

		self.timer = None
		self.password = None
		self.initialized = False
		self.lastMsgId = None
		self.synced = False

		self.buddies = BuddyList(self.legacyName, self.backend, self.user, self)
		self.bot = Bot(self)

		self.imgMsgId = None
		self.imgPath = ""
		self.imgBuddy = None
		self.imgType = ""


	def __del__(self): # handleLogoutRequest
		self.logout()

	def logout(self):
		self.logger.info("%s logged out" % self.user)
		super(Session, self).logout()
		self.loggedIn = False

	def login(self, password):
		self.logger.info("%s attempting login" % self.user)
		self.password = password
		self.shouldBeConncted = True
		super(Session, self).login(self.legacyName, self.password)

	def _shortenGroupId(self, gid):
		# FIXME: might have problems if number begins with 0
		return gid
#		return '-'.join(hex(int(s))[2:] for s in gid.split('-'))

	def _lengthenGroupId(self, gid):
		return gid
		# FIXME: might have problems if number begins with 0
#		return '-'.join(str(int(s, 16)) for s in gid.split('-'))

	def updateRoomList(self):
		rooms = []
		text = []
		for room, group in self.groups.iteritems():
			rooms.append([self._shortenGroupId(room), group.subject])
			text.append(self._shortenGroupId(room) + '@' + self.backend.spectrum_jid + ' :' + group.subject)

		self.logger.debug("Got rooms: %s" % rooms)
		self.backend.handleRoomList(rooms)
		message = "Note, you are a participant of the following groups:\n" + \
		          "\n".join(text) + "\nIf you do not join them you will lose messages"
		#self.bot.send(message)

	def _updateGroups(self, response, _):
		self.logger.debug('Received groups list %s' % response)
		groups = response.getGroups()
		for group in groups:
			room = group.getId()
			# ensure self.groups[room] exists
			if room not in self.groups:
				owner = group.getOwner().split('@')[0]
				subjectOwner = group.getSubjectOwner().split('@')[0]
				subject = group.getSubject()
				self.groups[room] = Group(room, owner, subject, subjectOwner,
							  self.backend, self.user)
			# add/update room participants
			self.groups[room].addParticipants(group.getParticipants().keys(),
							  self.buddies, self.legacyName)
		self.gotGroupList = True
		# join rooms
		while self.joinRoomQueue:
			self.joinRoom(*self.joinRoomQueue.pop(0))
		# deliver queued offline messages
		for room in self.groupOfflineQueue:
			while self.groupOfflineQueue[room]:
				msg = self.groupOfflineQueue[room].pop(0)
				self.backend.handleMessage(self.user, room, msg[1], msg[0], "",
							   msg[2])
				self.logger.debug("Send queued group message to: %s %s %s" %
						  (msg[0], msg[1], msg[2]))
		# pass update to backend
		self.updateRoomList()

	def joinRoom(self, room, nick):
		if not self.gotGroupList:
			self.joinRoomQueue.append((room, nick))
			return
		room = self._lengthenGroupId(room)
		if room in self.groups:
			self.logger.info("Joining room: %s room=%s, nick=%s" % 
					(self.legacyName, room, nick))

			group = self.groups[room]
			group.joined = True
			group.nick = nick
			group.participants[self.legacyName] = nick
			try:
				ownerNick = group.participants[group.subjectOwner]
			except KeyError:
				ownerNick = group.subjectOwner

			group.sendParticipantsToSpectrum(self.legacyName)
			self.backend.handleSubject(self.user, self._shortenGroupId(room),
									   group.subject, ownerNick)
			self.logger.debug("Room subject: room=%s, subject=%s" %
							  (room, group.subject))
			self.backend.handleRoomNicknameChanged(
				self.user, self._shortenGroupId(room), group.subject
			)
		else:
			self.logger.warn("Room doesn't exist: %s" % room)

	def leaveRoom(self, room):
		if room in self.groups:
			self.logger.info("Leaving room: %s room=%s" % (self.legacyName, room))
			group = self.groups[room]
			group.joined = False
		else:
			self.logger.warn("Room doesn't exist: %s. Unable to leave." % room)

	def _lastSeen(self, number, seconds):
		self.logger.debug("Last seen %s at %s seconds" % (number, seconds))
		if seconds < 60:
			self.onPresenceAvailable(number)
		else:
			self.onPresenceUnavailable(number)
	def sendReadReceipts(self, buddy):
		for _id, _from, participant, t in self.recvMsgIDs:
			if _from.split('@')[0] == buddy:
				self.sendReceipt(_id, _from, 'read', participant)
				self.recvMsgIDs.remove((_id, _from, participant, t))
				self.logger.debug("Send read receipt to %s (ID: %s)", _from, _id)

	# Called by superclass
	def onAuthSuccess(self, status, kind, creation,
			expiration, props, nonce, t):
		self.logger.info("Auth success: %s" % self.user)

		self.backend.handleConnected(self.user)
		self.backend.handleBuddyChanged(self.user, "bot", self.bot.name,
						["Admin"], protocol_pb2.STATUS_ONLINE)
		# Initialisation?
		self.requestPrivacyList()
		self.requestClientConfig()
		self.requestServerProperties()
		# ?

		self.logger.debug('Requesting groups list')
		self.requestGroupsList(self._updateGroups)
		# self.requestBroadcastList()

		# This should handle, sync, statuses, and presence
		self.sendPresence(True)
		for func in self.loginQueue:
			func()

		if self.initialized == False:
			self.sendOfflineMessages()
			#self.bot.call("welcome")
			self.initialized = True

		self.loggedIn = True

	# Called by superclass
	def onAuthFailed(self, reason):
		self.logger.info("Auth failed: %s (%s)" % (self.user, reason))
		self.backend.handleDisconnected(self.user, 0, reason)
		self.password = None
		self.loggedIn = False

	# Called by superclass
	def onDisconnect(self):
		self.logger.debug('Disconnected')
		self.backend.handleDisconnected(self.user, 0, 'Disconnected for unknown reasons')

	# Called by superclass
	def onReceipt(self, _id, _from, timestamp, type, participant, offline, items):
		self.logger.debug("received receipt, sending ack: %s" %
				[ _id, _from, timestamp, type, participant, offline, items ]
		)
		try:
			number = _from.split('@')[0]
			self.backend.handleMessageAck(self.user, number, self.msgIDs[_id].xmppId)
			self.msgIDs[_id].cnt = self.msgIDs[_id].cnt + 1
			if self.msgIDs[_id].cnt == 2:
				del self.msgIDs[_id]
		except KeyError:
			self.logger.error("Message %s not found. Unable to send ack" % _id)

	# Called by superclass
	def onAck(self, _id, _class, _from, timestamp):
		self.logger.debug('received ack: %s' % [ _id, _class, _from, timestamp ])

	# Called by superclass
	def onTextMessage(self, _id, _from, to, notify, timestamp, participant,
					  offline, retry, body):
		buddy = _from.split('@')[0]
		messageContent = body
		self.sendReceipt(_id, _from, None, participant)
		self.recvMsgIDs.append((_id, _from, participant, timestamp))
		self.logger.info("Message received from %s to %s: %s (at ts=%s)" %
				(buddy, self.legacyName, messageContent, timestamp))

		if participant is not None: # Group message or broadcast
			partname = participant.split('@')[0]
			if _from.split('@')[1] == 'broadcast': # Broadcast message
				message = self.broadcast_prefix + messageContent
				self.sendMessageToXMPP(partname, message, timestamp)
			else: # Group message
				if notify is None:
					notify = ""
				self.sendGroupMessageToXMPP(buddy, partname, messageContent,
											timestamp, notify)
		else:
			self.sendMessageToXMPP(buddy, messageContent, timestamp)

	# Called by superclass
	def onImage(self, image):
		if image.caption is None:
			image.caption = ''

		self.onMedia(image, "image")


	# Called by superclass
	def onAudio(self, audio):
		self.onMedia(audio, "audio")


	# Called by superclass
	def onVideo(self, video):
		self.onMedia(video, "video")

		
	def onMedia(self, media, type):
		self.logger.debug('Received %s message: %s' % (type, media))
		buddy = media._from.split('@')[0]
		participant = media.participant
		caption = ''

		if media.isEncrypted():
			self.logger.debug('Received encrypted media message')
			if self.backend.specConf is not None and self.backend.specConf.__getitem__("service.web_directory") is not None and self.backend.specConf.__getitem__("service.web_url") is not None :
				ipath = "/" + str(media.timestamp)  + media.getExtension()

				with open(self.backend.specConf.__getitem__("service.web_directory") + ipath,"wb") as f:
					f.write(media.getMediaContent())
				url = self.backend.specConf.__getitem__("service.web_url") + ipath
			else:
				self.logger.warn('Received encrypted media: web storage not set in config!')
				url = media.url

		else:
			url = media.url

		if type == 'image':
		    caption = media.caption

		if participant is not None: # Group message
			partname = participant.split('@')[0]
			if media._from.split('@')[1] == 'broadcast': # Broadcast message
				self.sendMessageToXMPP(partname, self.broadcast_prefix, media.timestamp)
				self.sendMessageToXMPP(partname, url, media.timestamp)
				self.sendMessageToXMPP(partname, caption, media.timestamp)
			else: # Group message
				self.sendGroupMessageToXMPP(buddy, partname, url, media.timestamp)
				self.sendGroupMessageToXMPP(buddy, partname, caption, media.timestamp)
		else:
			self.sendMessageToXMPP(buddy, url, media.timestamp)
			self.sendMessageToXMPP(buddy, caption, media.timestamp)

		self.sendReceipt(media._id,	 media._from, None, media.participant)
		self.recvMsgIDs.append((media._id, media._from, media.participant, media.timestamp))

	def onLocation(self, location):
		buddy = location._from.split('@')[0]
		latitude = location.getLatitude()
		longitude = location.getLongitude()
		url = location.getLocationURL()
		participant = location.participant
		latlong = 'geo:' + latitude + ',' + longitude

		self.logger.debug("Location received from %s: %s, %s", (buddy, latitude, longitude))

		if participant is not None: # Group message
			partname = participant.split('@')[0]
			if location._from.split('@')[1] == 'broadcast': # Broadcast message
				self.sendMessageToXMPP(partname, self.broadcast_prefix, location.timestamp)
				if url is not None:
					self.sendMessageToXMPP(partname, url, location.timestamp)
				self.sendMessageToXMPP(partname, latlong, location.timestamp)
			else: # Group message
				if url is not None:
					self.sendGroupMessageToXMPP(buddy, partname, url, location.timestamp)
				self.sendGroupMessageToXMPP(buddy, partname, latlong, location.timestamp)
		else:
			if url is not None:
				self.sendMessageToXMPP(buddy, url, location.timestamp)
			self.sendMessageToXMPP(buddy, latlong, location.timestamp)
		self.sendReceipt(location._id, location._from, None, location.participant)
		self.recvMsgIDs.append((location._id, location._from, location.participant, location.timestamp))



	# Called by superclass
	def onVCard(self, _id, _from, name, card_data, to, notify, timestamp, participant):
		self.logger.debug('received VCard: %s' %
			[ _id, _from, name, card_data, to, notify, timestamp, participant ]
		)
		message =  "Received VCard (not implemented yet)"
		buddy = _from.split("@")[0]
		if participant is not None: # Group message
			partname = participant.split('@')[0]
			if _from.split('@')[1] == 'broadcast': # Broadcast message
				message = self.broadcast_prefix + message
				self.sendMessageToXMPP(partname, message, timestamp)
			else: # Group message
				self.sendGroupMessageToXMPP(buddy, partname, message, timestamp)
		else:
			self.sendMessageToXMPP(buddy, message, timestamp)
#		self.sendMessageToXMPP(buddy, card_data)
		#self.transferFile(buddy, str(name), card_data)
		self.sendReceipt(_id, _from, None, participant)
		self.recvMsgIDs.append((_id, _from, participant, timestamp))


	def transferFile(self, buddy, name, data):
		# Not working
		self.logger.debug('transfering file: %s' % name)
		self.backend.handleFTStart(self.user, buddy, name, len(data))
		self.backend.handleFTData(0, data)
		self.backend.handleFTFinish(self.user, buddy, name, len(data), 0)

	# Called by superclass
	def onContactTyping(self, buddy):
		self.logger.info("Started typing: %s" % buddy)
		if buddy != 'bot':
			self.sendPresence(True)
			self.backend.handleBuddyTyping(self.user, buddy)

			if self.timer != None:
				self.timer.cancel()

	# Called by superclass
	def onContactPaused(self, buddy):
		self.logger.info("Paused typing: %s" % buddy)
		if buddy != 'bot':
			self.backend.handleBuddyTyped(self.user, buddy)
			self.timer = Timer(3, self.backend.handleBuddyStoppedTyping,
							   (self.user, buddy)).start()

	# Called by superclass
	def onAddedToGroup(self, group):
		self.logger.debug("Added to group: %s" % group)
		room = group.getGroupId()
		owner = group.getCreatorJid(full = False)
		subjectOwner = group.getSubjectOwnerJid(full = False)
		subject = group.getSubject()

		self.groups[room] = Group(room, owner, subject, subjectOwner, self.backend, self.user)
		self.groups[room].addParticipants(group.getParticipants(), self.buddies, self.legacyName)
		self.bot.send("You have been added to group: %s@%s (%s)"
					  % (self._shortenGroupId(room), subject, self.backend.spectrum_jid))

	# Called by superclass
	def onParticipantsAddedToGroup(self, group):
		self.logger.debug("Participants added to group: %s" % group)
		room = group.getGroupId().split('@')[0]
		self.groups[room].addParticipants(group.getParticipants(), self.buddies, self.legacyName)
		self.groups[room].sendParticipantsToSpectrum(self.legacyName)

	# Called by superclass
	def onSubjectChanged(self, room, subject, subjectOwner, timestamp):
		self.logger.debug(
			"onSubjectChange(rrom=%s, subject=%s, subjectOwner=%s, timestamp=%s)" %
			(room, subject, subjectOwner, timestamp)
		)
		try:
			group = self.groups[room]
		except KeyError:
			self.logger.error("Subject of non-existant group (%s) changed" % group)
		else:
			group.subject = subject
			group.subjectOwner = subjectOwner
			if not group.joined:
				# We have not joined group so we should not send subject
				return
		self.backend.handleSubject(self.user, room, subject, subjectOwner)
		self.backend.handleRoomNicknameChanged(self.user, room, subject)

	# Called by superclass
	def onParticipantsRemovedFromGroup(self, room, participants):
		self.logger.debug("Participants removed from group: %s, %s" %
				(room, participants))
		self.groups[room].removeParticipants(participants)

	# Called by superclass
	def onContactStatusChanged(self, number, status):
		self.logger.debug("%s changed their status to %s" % (number, status))
		try:
			buddy = self.buddies[number]
			buddy.statusMsg = status
			self.buddies.updateSpectrum(buddy)
		except KeyError:
			self.logger.debug("%s not in buddy list" % number)

	# Called by superclass
	def onContactPictureChanged(self, number):
		self.logger.debug("%s changed their profile picture" % number)
		self.buddies.requestVCard(number)

	# Called by superclass
	def onContactAdded(self, number, nick):
		self.logger.debug("Adding new contact %s (%s)" % (nick, number))
		self.updateBuddy(number, nick, [])

	# Called by superclass
	def onContactRemoved(self, number):
		self.logger.debug("Removing contact %s" % number)
		self.removeBuddy(number)

	def onContactUpdated(self, oldnumber, newnumber):
		self.logger.debug("Contact has changed number from %s to %s" %
				(oldnumber, newnumber))
		if newnumber in self.buddies:
			self.logger.warn("Contact %s exists, just updating" % newnumber)
			self.buddies.refresh(newnumber)
		try:
			buddy = self.buddies[oldnumber]
		except KeyError:
			self.logger.warn("Old contact (%s) not found. Adding new contact (%s)" %
				(oldnumber, newnumber))
			nick = ""
		else:
			self.removeBuddy(buddy.number)
			nick = buddy.nick
		self.updateBuddy(newnumber, nick, [])

	def onPresenceReceived(self, _type, name, jid, lastseen):
		self.logger.info("Presence received: %s %s %s %s" % (_type, name, jid, lastseen))
		buddy = jid.split("@")[0]
		try:
			buddy = self.buddies[buddy]
		except KeyError:
			# Sometimes whatsapp send our own presence
			if buddy != self.legacyName:
				self.logger.error("Buddy not found: %s" % buddy)
			return

		if (lastseen == buddy.lastseen) and (_type == buddy.presence):
			return

		if ((lastseen != "deny") and (lastseen != None) and (lastseen != "none")):
			buddy.lastseen = int(lastseen)
		if (_type == None):
			buddy.lastseen = time.time()

		buddy.presence = _type

		if _type == "unavailable":
			self.onPresenceUnavailable(buddy)
		else:
			self.onPresenceAvailable(buddy)

	def onPresenceAvailable(self, buddy):
		self.logger.info("Is available: %s" % buddy)
		self.buddies.updateSpectrum(buddy)

	def onPresenceUnavailable(self, buddy):
		self.logger.info("Is unavailable: %s" % buddy)
		self.buddies.updateSpectrum(buddy)

	# spectrum RequestMethods
	def sendTypingStarted(self, buddy):
		if buddy != "bot":
			self.logger.info("Started typing: %s to %s" % (self.legacyName, buddy))
			self.sendTyping(buddy, True)
			self.sendReadReceipts(buddy)
		# If he is typing he is present
		# I really don't know where else to put this.
		# Ideally, this should be sent if the user is looking at his client
		self.sendPresence(True)

	def sendTypingStopped(self, buddy):
		if buddy != "bot":
			self.logger.info("Stopped typing: %s to %s" % (self.legacyName, buddy))
			self.sendTyping(buddy, False)
			self.sendReadReceipts(buddy)

	def sendImage(self, message, ID, to):
		if (".jpg" in message.lower()):
			imgType = "jpg"
		if (".webp" in message.lower()):
			imgType = "webp"

		success = deferred.Deferred()
		error = deferred.Deferred()
		self.downloadMedia(message, success.run, error.run)

		# Success
		path = success.arg(0)
		call(self.logger.info, "Success: Image downloaded to %s" % path)
		pathWithExt = path.then(lambda p: p + "." + imgType)
		call(os.rename, path, pathWithExt)
		pathJpg = path.then(lambda p: p + ".jpg")
		if imgType != "jpg":
			im = call(Image.open, pathWithExt)
			call(im.save, pathJpg)
			call(os.remove, pathWithExt)
		call(self.logger.info, "Sending image to %s" % to)
		waId = deferred.Deferred()
		call(super(Session, self).sendImage, to, pathJpg, onSuccess = waId.run)
		call(self.setWaId, ID, waId)
		waId.when(call, os.remove, pathJpg)
		waId.when(self.logger.info, "Image sent")

		# Error
		error.when(self.logger.info, "Download Error. Sending message as is.")
		waId = error.when(self.sendTextMessage, to, message)
		call(self.setWaId, ID, waId)

	def setWaId(self, XmppId, waId):
		self.msgIDs[waId] = MsgIDs(XmppId, waId)

	def sendMessageToWA(self, sender, message, ID, xhtml=""):
		self.logger.info("Message sent from %s to %s: %s (xhtml=%s)" %
						(self.legacyName, sender, message, xhtml))

		self.sendReadReceipts(sender)

		if sender == "bot":
			self.bot.parse(message)
		elif "-" in sender: # group msg
			if "/" in sender: # directed at single user
				room, nick = sender.split("/")
				group = self.groups[room]
				number = None
				for othernumber, othernick in group.participants.iteritems():
					if othernick == nick:
						number = othernumber
						break
				if number is not None:
					self.logger.debug("Private message sent from %s to %s" % (self.legacyName, number))
					waId = self.sendTextMessage(number + '@s.whatsapp.net', message)
					self.msgIDs[waId] = MsgIDs( ID, waId)
				else:
					self.logger.error("Attempted to send private message to non-existent user")
					self.logger.debug("%s to %s in %s" % (self.legacyName, nick, room))
			else:
				room = sender
				if message[0] == '\\' and message[:1] != '\\\\':
					self.logger.debug("Executing command %s in %s" % (message, room))
					self.executeCommand(message, room)
				else:
					try:
						group = self.groups[self._lengthenGroupId(room)]
						self.logger.debug("Group Message from %s to %s Groups: %s" %
										(group.nick , group , self.groups))
						self.backend.handleMessage(
							self.user, room, message, group.nick, xhtml=xhtml
						)
					except KeyError:
						self.logger.error('Group not found: %s' % room)

				if (".jpg" in message.lower()) or (".webp" in message.lower()):
					self.sendImage(message, ID, room + '@g.us')
				elif "geo:" in message.lower():
					self._sendLocation(room + "@g.us", message, ID)
				else:
					self.sendTextMessage(room + '@g.us', message)
		else: # private msg
			buddy = sender
			if message.split(" ").pop(0) == "\\lastseen":
				self.presenceRequested.append(buddy)
				self._requestLastSeen(buddy)
			elif message.split(" ").pop(0) == "\\gpp":
				self.sendMessageToXMPP(buddy, "Fetching Profile Picture")
				self.requestVCard(buddy)
			elif (".jpg" in message.lower()) or (".webp" in message.lower()):
				self.sendImage(message, ID, buddy + "@s.whatsapp.net")
			elif "geo:" in message.lower():
				self._sendLocation(buddy + "@s.whatsapp.net", message, ID)
			else:
				waId = self.sendTextMessage(sender + '@s.whatsapp.net', message)
				self.msgIDs[waId] = MsgIDs(ID, waId)

			# self.logger.info("WA Message send to %s with ID %s", buddy, waId)
	
	def executeCommand(self, command, room):
		if command == '\\leave':
			self.logger.debug("Leaving room %s", room)
			self.leaveGroup(room) # Leave group on whatsapp side
			group = self.groups[room]
			group.leaveRoom() # Delete Room on spectrum side
			del self.groups[room]

	def _requestLastSeen(self, buddy):
		def onSuccess(buddy, lastseen):
			timestamp = time.localtime(time.localtime()-lastseen)
			timestring = time.strftime("%a, %d %b %Y %H:%M:%S", timestamp)
			self.sendMessageToXMPP(buddy, "%s (%s) %s" % (timestring, utils.ago(lastseen), str(lastseen)))

		def onError(errorIqEntity, originalIqEntity):
			self.sendMessageToXMPP(errorIqEntity.getFrom(), "LastSeen Error")

		self.requestLastSeen(buddy, onSuccess, onError)

	def _sendLocation(self, buddy, message, ID):
		latitude,longitude = message.split(':')[1].split(',')
		waId = self.sendLocation(buddy, float(latitude), float(longitude))
		self.msgIDs[waId] = MsgIDs(ID, waId)
		self.logger.info("WA Location Message send to %s with ID %s", buddy, waId)

	def sendMessageToXMPP(self, buddy, messageContent, timestamp = "", nickname = ""):
		if timestamp:
			timestamp = time.strftime("%Y%m%dT%H%M%S", time.gmtime(timestamp))

		if self.initialized == False:
			self.logger.debug("Message queued from %s to %s: %s" %
					(buddy, self.legacyName, messageContent))
			self.offlineQueue.append((buddy, messageContent, timestamp))
		else:
			self.logger.debug("Message sent from %s to %s: %s" % (
					buddy, self.legacyName, messageContent))
			self.backend.handleMessage(self.user, buddy, messageContent, "",
					"", timestamp)

	def sendGroupMessageToXMPP(self, room, number, messageContent, timestamp = "", defaultname = ""):
		if timestamp:
			timestamp = time.strftime("%Y%m%dT%H%M%S", time.gmtime(timestamp))

		if self.initialized == False:
			self.logger.debug("Group message queued from %s to %s: %s" %
							(number, room, messageContent))

			if room not in self.groupOfflineQueue:
				self.groupOfflineQueue[room] = [ ]

			self.groupOfflineQueue[room].append(
				(number, messageContent, timestamp)
			)
		else:
			self.logger.debug("Group message sent from %s to %s: %s" %
							(number, room, messageContent))
			try:
				group = self.groups[room]
				# Update nickname
				try:
					if defaultname != "" and group.participants[number] == number:
						group.changeNick(number, defaultname)
					if self.buddies[number].nick != "":
						group.changeNick(number, self.buddies[number].nick)
				except KeyError:
					pass
				nick = group.participants[number]
				if group.joined:
					self.backend.handleMessage(self.user, room, messageContent,
							nick, "", timestamp)
				else:
					self.bot.send("You have received a message in group: %s@%s"
							% (room, self.backend.spectrum_jid))
					self.bot.send("Join the group in order to reply")
					self.bot.send("%s: %s" % (nick, messageContent))
			except KeyError:
				self.logger.warn("Group is not in group list")
				self.backend.handleMessage(self.user, self._shortenGroupId(room),
						messageContent, number, "", timestamp)


	def changeStatus(self, status):
		if status != self.status:
			self.logger.info("Status changed: %s" % status)
			self.status = status

			if status == protocol_pb2.STATUS_ONLINE \
					or status == protocol_pb2.STATUS_FFC:
				self.sendPresence(True)
			else:
				self.sendPresence(False)

	def changeStatusMessage(self, statusMessage):
		if (statusMessage != self.statusMessage) or (self.initialized == False):
			self.statusMessage = statusMessage
			self.setStatus(statusMessage)
			self.logger.info("Status message changed: %s" % statusMessage)

			#if self.initialized == False:
			#	self.sendOfflineMessages()
			#	self.bot.call("welcome")
			#	self.initialized = True

	def sendOfflineMessages(self):
		# Flush Queues
		while self.offlineQueue:
			msg = self.offlineQueue.pop(0)
			self.backend.handleMessage(self.user, msg[0], msg[1], "", "", msg[2])

	# Called when user logs in to initialize the roster
	def loadBuddies(self, buddies):
		self.buddies.load(buddies)

	# also for adding a new buddy
	def updateBuddy(self, buddy, nick, groups, image_hash = None):
		if buddy != "bot":
			self.buddies.update(buddy, nick, groups, image_hash)

	def removeBuddy(self, buddy):
		if buddy != "bot":
			self.logger.info("Buddy removed: %s" % buddy)
			self.buddies.remove(buddy)

	def requestVCard(self, buddy, ID=None):
		self.buddies.requestVCard(buddy, ID)

	def createThumb(self, size=100, raw=False):
		img = Image.open(self.imgPath)
		width, height = img.size
		img_thumbnail = self.imgPath + '_thumbnail'

		if width > height:
			nheight = float(height) / width * size
			nwidth = size
		else:
			nwidth = float(width) / height * size
			nheight = size

		img.thumbnail((nwidth, nheight), Image.ANTIALIAS)
		img.save(img_thumbnail, 'JPEG')

		with open(img_thumbnail, 'rb') as imageFile:
			raw = base64.b64encode(imageFile.read())

		return raw

	# Not used
	def onLocationReceived(self, messageId, jid, name, preview, latitude, longitude, receiptRequested, isBroadcast):
		buddy = jid.split("@")[0]
		self.logger.info("Location received from %s: %s, %s" % (buddy, latitude, longitude))

		url = "http://maps.google.de?%s" % urllib.urlencode({ "q": "%s %s" % (latitude, longitude) })
		self.sendMessageToXMPP(buddy, utils.shorten(url))
		if receiptRequested:
			self.call("message_ack", (jid, messageId))

	def onGroupSubjectReceived(self, messageId, gjid, jid, subject, timestamp, receiptRequested):
		room = gjid.split("@")[0]
		buddy = jid.split("@")[0]

		self.backend.handleSubject(self.user, room, subject, buddy)
		if receiptRequested:
			self.call("subject_ack", (gjid, messageId))

	# Yowsup Notifications
	def onGroupParticipantRemoved(self, gjid, jid, author, timestamp, messageId, receiptRequested):
		room = gjid.split("@")[0]
		buddy = jid.split("@")[0]

		self.logger.info("Removed %s from room %s" % (buddy, room))

		self.backend.handleParticipantChanged(self.user, buddy, room, protocol_pb2.PARTICIPANT_FLAG_NONE, protocol_pb2.STATUS_NONE) # TODO

		if receiptRequested: self.call("notification_ack", (gjid, messageId))

	def onContactProfilePictureUpdated(self, jid, timestamp, messageId, pictureId, receiptRequested):
		# TODO
		if receiptRequested:
			self.call("notification_ack", (jid, messageId))

	def onGroupPictureUpdated(self, jid, author, timestamp, messageId, pictureId, receiptRequested):
		# TODO
		if receiptRequested:
			self.call("notification_ack", (jid, messageId))