transpub/Spectrum2/backend.py

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__author__ = "Steffen Vogel"
__copyright__ = "Copyright 2015-2017, Steffen Vogel"
__license__ = "GPLv3"
__maintainer__ = "Steffen Vogel"
__email__ = "post@steffenvogel.de"
"""
This file is part of transWhat
transWhat 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 3 of the License, or
any later version.
transwhat 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 transWhat. If not, see <http://www.gnu.org/licenses/>.
"""
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import protocol_pb2
import socket
import struct
import sys
import os
import logging
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import google.protobuf
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import resource
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def WRAP(MESSAGE, TYPE):
wrap = protocol_pb2.WrapperMessage()
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wrap.type = TYPE
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wrap.payload = bytes(MESSAGE)
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return wrap.SerializeToString()
class SpectrumBackend:
"""
Creates new NetworkPlugin and connects the Spectrum2 NetworkPluginServer.
@param loop: Event loop.
@param host: Host where Spectrum2 NetworkPluginServer runs.
@param port: Port.
"""
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def __init__(self):
self.m_pingReceived = False
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self.m_data = bytes("")
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self.m_init_res = 0
self.logger = logging.getLogger(self.__class__.__name__)
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def handleMessage(self, user, legacyName, msg, nickname = "", xhtml = "", timestamp = ""):
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m = protocol_pb2.ConversationMessage()
m.userName = user
m.buddyName = legacyName
m.message = msg
m.nickname = nickname
m.xhtml = xhtml
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m.timestamp = str(timestamp)
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message = WRAP(m.SerializeToString(), protocol_pb2.WrapperMessage.TYPE_CONV_MESSAGE)
self.send(message)
def handleMessageAck(self, user, legacyName, ID):
m = protocol_pb2.ConversationMessage()
m.userName = user
m.buddyName = legacyName
m.message = ""
m.id = ID
message = WRAP(m.SerializeToString(), protocol_pb2.WrapperMessage.TYPE_CONV_MESSAGE_ACK)
self.send(message)
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def handleAttention(self, user, buddyName, msg):
m = protocol_pb2.ConversationMessage()
m.userName = user
m.buddyName = buddyName
m.message = msg
message = WRAP(m.SerializeToString(), protocol_pb2.WrapperMessage.TYPE_ATTENTION)
self.send(message)
def handleVCard(self, user, ID, legacyName, fullName, nickname, photo):
vcard = protocol_pb2.VCard()
vcard.userName = user
vcard.buddyName = legacyName
vcard.id = ID
vcard.fullname = fullName
vcard.nickname = nickname
vcard.photo = bytes(photo)
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message = WRAP(vcard.SerializeToString(), protocol_pb2.WrapperMessage.TYPE_VCARD)
self.send(message)
def handleSubject(self, user, legacyName, msg, nickname = ""):
m = protocol_pb2.ConversationMessage()
m.userName = user
m.buddyName = legacyName
m.message = msg
m.nickname = nickname
message = WRAP(m.SerializeToString(), protocol_pb2.WrapperMessage.TYPE_ROOM_SUBJECT_CHANGED)
self.send(message)
def handleBuddyChanged(self, user, buddyName, alias, groups, status, statusMessage = "", iconHash = "", blocked = False):
buddy = protocol_pb2.Buddy()
buddy.userName = user
buddy.buddyName = buddyName
buddy.alias = alias
buddy.group.extend(groups)
buddy.status = status
buddy.statusMessage = statusMessage
buddy.iconHash = iconHash
buddy.blocked = blocked
message = WRAP(buddy.SerializeToString(), protocol_pb2.WrapperMessage.TYPE_BUDDY_CHANGED)
self.send(message)
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def handleBuddyRemoved(self, user, buddyName):
buddy = protocol_pb2.Buddy()
buddy.userName = user
buddy.buddyName = buddyName
message = WRAP(buddy.SerializeToString(), protocol_pb2.WrapperMessage.TYPE_BUDDY_REMOVED)
self.send(message);
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def handleBuddyTyping(self, user, buddyName):
buddy = protocol_pb2.Buddy()
buddy.userName = user
buddy.buddyName = buddyName
message = WRAP(buddy.SerializeToString(), protocol_pb2.WrapperMessage.TYPE_BUDDY_TYPING)
self.send(message);
def handleBuddyTyped(self, user, buddyName):
buddy = protocol_pb2.Buddy()
buddy.userName = user
buddy.buddyName = buddyName
message = WRAP(buddy.SerializeToString(), protocol_pb2.WrapperMessage.TYPE_BUDDY_TYPED)
self.send(message);
def handleBuddyStoppedTyping(self, user, buddyName):
buddy = protocol_pb2.Buddy()
buddy.userName = user
buddy.buddyName = buddyName
message = WRAP(buddy.SerializeToString(), protocol_pb2.WrapperMessage.TYPE_BUDDY_STOPPED_TYPING)
self.send(message)
def handleAuthorization(self, user, buddyName):
buddy = protocol_pb2.Buddy()
buddy.userName = user
buddy.buddyName = buddyName
message = WRAP(buddy.SerializeToString(), protocol_pb2.WrapperMessage.TYPE_AUTH_REQUEST)
self.send(message)
def handleConnected(self, user):
d = protocol_pb2.Connected()
d.user = user
message = WRAP(d.SerializeToString(), protocol_pb2.WrapperMessage.TYPE_CONNECTED)
self.send(message);
def handleDisconnected(self, user, error = 0, msg = ""):
d = protocol_pb2.Disconnected()
d.user = user
d.error = error
d.message = msg
message = WRAP(d.SerializeToString(), protocol_pb2.WrapperMessage.TYPE_DISCONNECTED)
self.send(message);
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def handleParticipantChanged(self, user, nickname, room, flags, status, statusMessage = "", newname = "", iconHash = ""):
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d = protocol_pb2.Participant()
d.userName = user
d.nickname = nickname
d.room = room
d.flag = flags
d.newname = newname
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d.iconHash = iconHash
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d.status = status
d.statusMessage = statusMessage
message = WRAP(d.SerializeToString(), protocol_pb2.WrapperMessage.TYPE_PARTICIPANT_CHANGED)
self.send(message);
def handleRoomNicknameChanged(self, user, r, nickname):
room = protocol_pb2.Room()
room.userName = user
room.nickname = nickname
room.room = r
room.password = ""
message = WRAP(room.SerializeToString(), protocol_pb2.WrapperMessage.TYPE_ROOM_NICKNAME_CHANGED)
self.send(message);
def handleRoomList(self, rooms):
roomList = protocol_pb2.RoomList()
for room in rooms:
roomList.room.append(room[0])
roomList.name.append(room[1])
message = WRAP(roomList.SerializeToString(), protocol_pb2.WrapperMessage.TYPE_ROOM_LIST)
self.send(message);
def handleFTStart(self, user, buddyName, fileName, size):
room = protocol_pb2.File()
room.userName = user
room.buddyName = buddyName
room.fileName = fileName
room.size = size
message = WRAP(room.SerializeToString(), protocol_pb2.WrapperMessage.TYPE_FT_START)
self.send(message);
def handleFTFinish(self, user, buddyName, fileName, size, ftid):
room = protocol_pb2.File()
room.userName = user
room.buddyName = buddyName
room.fileName = fileName
room.size = size
# Check later
if ftid != 0:
room.ftID = ftid
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message = WRAP(room.SerializeToString(), protocol_pb2.WrapperMessage.TYPE_FT_FINISH)
self.send(message)
def handleFTData(self, ftID, data):
d = protocol_pb2.FileTransferData()
d.ftid = ftID
d.data = bytes(data)
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message = WRAP(d.SerializeToString(), protocol_pb2.WrapperMessage.TYPE_FT_DATA);
self.send(message)
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def handleBackendConfig(self, data):
"""
data is a dictionary, whose keys are sections and values are a list of
tuples of configuration key and configuration value.
"""
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c = protocol_pb2.BackendConfig()
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config = []
for section, rest in data.items():
config.append('[%s]' % section)
for key, value in rest:
config.append('%s = %s' % (key, value))
c.config = '\n'.join(config)
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message = WRAP(c.SerializeToString(), protocol_pb2.WrapperMessage.TYPE_BACKEND_CONFIG);
self.send(message)
def handleQuery(self, command):
c = protocol_pb2.BackendConfig()
c.config = command
message = WRAP(c.SerializeToString(), protocol_pb2.WrapperMessage.TYPE_QUERY);
self.send(message)
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def handleLoginPayload(self, data):
payload = protocol_pb2.Login()
if (payload.ParseFromString(data) == False):
#TODO: ERROR
return
self.handleLoginRequest(payload.user, payload.legacyName, payload.password, payload.extraFields)
def handleLogoutPayload(self, data):
payload = protocol_pb2.Logout()
if (payload.ParseFromString(data) == False):
#TODO: ERROR
return
self.handleLogoutRequest(payload.user, payload.legacyName)
def handleStatusChangedPayload(self, data):
payload = protocol_pb2.Status()
if (payload.ParseFromString(data) == False):
#TODO: ERROR
return
self.handleStatusChangeRequest(payload.userName, payload.status, payload.statusMessage)
def handleConvMessagePayload(self, data):
payload = protocol_pb2.ConversationMessage()
if (payload.ParseFromString(data) == False):
#TODO: ERROR
return
self.handleMessageSendRequest(payload.userName, payload.buddyName, payload.message, payload.xhtml, payload.id)
def handleConvMessageAckPayload(self, data):
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payload = protocol_pb2.ConversationMessage()
if (payload.ParseFromString(data) == False):
#TODO: ERROR
return
self.handleMessageAckRequest(payload.userName, payload.buddyName, payload.id)
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def handleAttentionPayload(self, data):
payload = protocol_pb2.ConversationMessage()
if (payload.ParseFromString(data) == False):
#TODO: ERROR
return
self.handleAttentionRequest(payload.userName, payload.buddyName, payload.message)
def handleFTStartPayload(self, data):
payload = protocol_pb2.File()
if (payload.ParseFromString(data) == False):
#TODO: ERROR
return
self.handleFTStartRequest(payload.userName, payload.buddyName, payload.fileName, payload.size, payload.ftID);
def handleFTFinishPayload(self, data):
payload = protocol_pb2.File()
if (payload.ParseFromString(data) == False):
#TODO: ERROR
return
self.handleFTFinishRequest(payload.userName, payload.buddyName, payload.fileName, payload.size, payload.ftID)
def handleFTPausePayload(self, data):
payload = protocol_pb2.FileTransferData()
if (payload.ParseFromString(data) == False):
#TODO: ERROR
return
self.handleFTPauseRequest(payload.ftID)
def handleFTContinuePayload(self, data):
payload = protocol_pb2.FileTransferData()
if (payload.ParseFromString(data) == False):
#TODO: ERROR
return
self.handleFTContinueRequest(payload.ftID)
def handleJoinRoomPayload(self, data):
payload = protocol_pb2.Room()
if (payload.ParseFromString(data) == False):
#TODO: ERROR
return
self.handleJoinRoomRequest(payload.userName, payload.room, payload.nickname, payload.password)
def handleLeaveRoomPayload(self, data):
payload = protocol_pb2.Room()
if (payload.ParseFromString(data) == False):
#TODO: ERROR
return
self.handleLeaveRoomRequest(payload.userName, payload.room)
def handleVCardPayload(self, data):
payload = protocol_pb2.VCard()
if (payload.ParseFromString(data) == False):
#TODO: ERROR
return
if payload.HasField('photo'):
self.handleVCardUpdatedRequest(payload.userName, payload.photo, payload.nickname)
elif len(payload.buddyName) > 0:
self.handleVCardRequest(payload.userName, payload.buddyName, payload.id)
def handleBuddyChangedPayload(self, data):
payload = protocol_pb2.Buddy()
if (payload.ParseFromString(data) == False):
#TODO: ERROR
return
if payload.HasField('blocked'):
self.handleBuddyBlockToggled(payload.userName, payload.buddyName, payload.blocked)
else:
groups = [g for g in payload.group]
self.handleBuddyUpdatedRequest(payload.userName, payload.buddyName, payload.alias, groups);
def handleBuddyRemovedPayload(self, data):
payload = protocol_pb2.Buddy()
if (payload.ParseFromString(data) == False):
#TODO: ERROR
return
groups = [g for g in payload.group]
self.handleBuddyRemovedRequest(payload.userName, payload.buddyName, groups);
def handleBuddiesPayload(self, data):
payload = protocol_pb2.Buddies()
if (payload.ParseFromString(data) == False):
#TODO: ERROR
return
self.handleBuddies(payload);
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def handleChatStatePayload(self, data, msgType):
payload = protocol_pb2.Buddy()
if (payload.ParseFromString(data) == False):
#TODO: ERROR
return
if msgType == protocol_pb2.WrapperMessage.TYPE_BUDDY_TYPING:
self.handleTypingRequest(payload.userName, payload.buddyName)
elif msgType == protocol_pb2.WrapperMessage.TYPE_BUDDY_TYPED:
self.handleTypedRequest(payload.userName, payload.buddyName)
elif msgType == protocol_pb2.WrapperMessage.TYPE_BUDDY_STOPPED_TYPING:
self.handleStoppedTypingRequest(payload.userName, payload.buddyName)
def handleDataRead(self, data):
self.m_data += data
while len(self.m_data) != 0:
expected_size = 0
if (len(self.m_data) >= 4):
expected_size = struct.unpack('!I', self.m_data[0:4])[0]
if (len(self.m_data) - 4 < expected_size):
self.logger.debug("Data packet incomplete")
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return
else:
self.logger.debug("Data packet incomplete")
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return
packet = self.m_data[4:4+expected_size]
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wrapper = protocol_pb2.WrapperMessage()
try:
parseFromString = wrapper.ParseFromString(packet)
except:
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self.m_data = self.m_data[expected_size+4:]
self.logger.error("Parse from String exception. Skipping packet.")
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return
if parseFromString == False:
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self.m_data = self.m_data[expected_size+4:]
self.logger.error("Parse from String failed. Skipping packet.")
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return
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self.m_data = self.m_data[4+expected_size:]
if wrapper.type == protocol_pb2.WrapperMessage.TYPE_LOGIN:
self.handleLoginPayload(wrapper.payload)
elif wrapper.type == protocol_pb2.WrapperMessage.TYPE_LOGOUT:
self.handleLogoutPayload(wrapper.payload)
elif wrapper.type == protocol_pb2.WrapperMessage.TYPE_PING:
self.sendPong()
elif wrapper.type == protocol_pb2.WrapperMessage.TYPE_CONV_MESSAGE:
self.handleConvMessagePayload(wrapper.payload)
elif wrapper.type == protocol_pb2.WrapperMessage.TYPE_JOIN_ROOM:
self.handleJoinRoomPayload(wrapper.payload)
elif wrapper.type == protocol_pb2.WrapperMessage.TYPE_LEAVE_ROOM:
self.handleLeaveRoomPayload(wrapper.payload)
elif wrapper.type == protocol_pb2.WrapperMessage.TYPE_VCARD:
self.handleVCardPayload(wrapper.payload)
elif wrapper.type == protocol_pb2.WrapperMessage.TYPE_BUDDY_CHANGED:
self.handleBuddyChangedPayload(wrapper.payload)
elif wrapper.type == protocol_pb2.WrapperMessage.TYPE_BUDDY_REMOVED:
self.handleBuddyRemovedPayload(wrapper.payload)
elif wrapper.type == protocol_pb2.WrapperMessage.TYPE_STATUS_CHANGED:
self.handleStatusChangedPayload(wrapper.payload)
elif wrapper.type == protocol_pb2.WrapperMessage.TYPE_BUDDY_TYPING:
self.handleChatStatePayload(wrapper.payload, protocol_pb2.WrapperMessage.TYPE_BUDDY_TYPING)
elif wrapper.type == protocol_pb2.WrapperMessage.TYPE_BUDDY_TYPED:
self.handleChatStatePayload(wrapper.payload, protocol_pb2.WrapperMessage.TYPE_BUDDY_TYPED)
elif wrapper.type == protocol_pb2.WrapperMessage.TYPE_BUDDY_STOPPED_TYPING:
self.handleChatStatePayload(wrapper.payload, protocol_pb2.WrapperMessage.TYPE_BUDDY_STOPPED_TYPING)
elif wrapper.type == protocol_pb2.WrapperMessage.TYPE_ATTENTION:
self.handleAttentionPayload(wrapper.payload)
elif wrapper.type == protocol_pb2.WrapperMessage.TYPE_FT_START:
self.handleFTStartPayload(wrapper.payload)
elif wrapper.type == protocol_pb2.WrapperMessage.TYPE_FT_FINISH:
self.handleFTFinishPayload(wrapper.payload)
elif wrapper.type == protocol_pb2.WrapperMessage.TYPE_FT_PAUSE:
self.handleFTPausePayload(wrapper.payload)
elif wrapper.type == protocol_pb2.WrapperMessage.TYPE_FT_CONTINUE:
self.handleFTContinuePayload(wrapper.payload)
elif wrapper.type == protocol_pb2.WrapperMessage.TYPE_EXIT:
self.handleExitRequest()
elif wrapper.type == protocol_pb2.WrapperMessage.TYPE_CONV_MESSAGE_ACK:
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self.handleConvMessageAckPayload(wrapper.payload)
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elif wrapper.type == protocol_pb2.WrapperMessage.TYPE_RAW_XML:
self.handleRawXmlRequest(wrapper.payload)
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elif wrapper.type == protocol_pb2.WrapperMessage.TYPE_BUDDIES:
self.handleBuddiesPayload(wrapper.payload)
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def send(self, data):
header = struct.pack('!I',len(data))
self.sendData(header + data)
def checkPing(self):
if (self.m_pingReceived == False):
self.handleExitRequest()
self.m_pingReceived = False
def sendPong(self):
self.m_pingReceived = True
wrap = protocol_pb2.WrapperMessage()
wrap.type = protocol_pb2.WrapperMessage.TYPE_PONG
message = wrap.SerializeToString()
self.send(message)
self.sendMemoryUsage()
def sendMemoryUsage(self):
stats = protocol_pb2.Stats()
stats.init_res = self.m_init_res
res = 0
shared = 0
e_res, e_shared = self.handleMemoryUsage()
stats.res = res + e_res
stats.shared = shared + e_shared
stats.id = str(os.getpid())
message = WRAP(stats.SerializeToString(), protocol_pb2.WrapperMessage.TYPE_STATS)
self.send(message)
def handleLoginRequest(self, user, legacyName, password, extra):
"""
Called when XMPP user wants to connect legacy network.
You should connect him to legacy network and call handleConnected or handleDisconnected function later.
@param user: XMPP JID of user for which this event occurs.
@param legacyName: Legacy network name of this user used for login.
@param password: Legacy network password of this user.
"""
#\msc
#NetworkPlugin,YourNetworkPlugin,LegacyNetwork;
#NetworkPlugin->YourNetworkPlugin [label="handleLoginRequest(...)", URL="\ref NetworkPlugin::handleLoginRequest()"];
#YourNetworkPlugin->LegacyNetwork [label="connect the legacy network"];
#--- [label="If password was valid and user is connected and logged in"];
#YourNetworkPlugin<-LegacyNetwork [label="connected"];
#YourNetworkPlugin->NetworkPlugin [label="handleConnected()", URL="\ref NetworkPlugin::handleConnected()"];
#--- [label="else"];
#YourNetworkPlugin<-LegacyNetwork [label="disconnected"];
#YourNetworkPlugin->NetworkPlugin [label="handleDisconnected()", URL="\ref NetworkPlugin::handleDisconnected()"];
#\endmsc
raise NotImplementedError, "Implement me"
def handleBuddies(self, buddies):
pass
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def handleLogoutRequest(self, user, legacyName):
"""
Called when XMPP user wants to disconnect legacy network.
You should disconnect him from legacy network.
@param user: XMPP JID of user for which this event occurs.
@param legacyName: Legacy network name of this user used for login.
"""
raise NotImplementedError, "Implement me"
def handleMessageSendRequest(self, user, legacyName, message, xhtml = "", ID = 0):
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"""
Called when XMPP user sends message to legacy network.
@param user: XMPP JID of user for which this event occurs.
@param legacyName: Legacy network name of buddy or room.
@param message: Plain text message.
@param xhtml: XHTML message.
@param ID: message ID
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"""
raise NotImplementedError, "Implement me"
def handleMessageAckRequest(self, user, legacyName, ID = 0):
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"""
Called when XMPP user sends message to legacy network.
@param user: XMPP JID of user for which this event occurs.
@param legacyName: Legacy network name of buddy or room.
@param ID: message ID
"""
# raise NotImplementedError, "Implement me"
pass
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def handleVCardRequest(self, user, legacyName, ID):
""" Called when XMPP user requests VCard of buddy.
@param user: XMPP JID of user for which this event occurs.
@param legacyName: Legacy network name of buddy whose VCard is requested.
@param ID: ID which is associated with this request. You have to pass it to handleVCard function when you receive VCard."""
#\msc
#NetworkPlugin,YourNetworkPlugin,LegacyNetwork;
#NetworkPlugin->YourNetworkPlugin [label="handleVCardRequest(...)", URL="\ref NetworkPlugin::handleVCardRequest()"];
#YourNetworkPlugin->LegacyNetwork [label="start VCard fetching"];
#YourNetworkPlugin<-LegacyNetwork [label="VCard fetched"];
#YourNetworkPlugin->NetworkPlugin [label="handleVCard()", URL="\ref NetworkPlugin::handleVCard()"];
#\endmsc
pass
def handleVCardUpdatedRequest(self, user, photo, nickname):
"""
Called when XMPP user updates his own VCard.
You should update the VCard in legacy network too.
@param user: XMPP JID of user for which this event occurs.
@param photo: Raw photo data.
"""
pass
def handleJoinRoomRequest(self, user, room, nickname, pasword):
pass
def handleLeaveRoomRequest(self, user, room):
pass
def handleStatusChangeRequest(self, user, status, statusMessage):
pass
def handleBuddyUpdatedRequest(self, user, buddyName, alias, groups):
pass
def handleBuddyRemovedRequest(self, user, buddyName, groups):
pass
def handleBuddyBlockToggled(self, user, buddyName, blocked):
pass
def handleTypingRequest(self, user, buddyName):
pass
def handleTypedRequest(self, user, buddyName):
pass
def handleStoppedTypingRequest(self, user, buddyName):
pass
def handleAttentionRequest(self, user, buddyName, message):
pass
def handleFTStartRequest(self, user, buddyName, fileName, size, ftID):
pass
def handleFTFinishRequest(self, user, buddyName, fileName, size, ftID):
pass
def handleFTPauseRequest(self, ftID):
pass
def handleFTContinueRequest(self, ftID):
pass
def handleMemoryUsage(self):
return (resource.getrusage(resource.RUSAGE_SELF).ru_maxrss, 0)
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def handleExitRequest(self):
sys.exit(1)
def handleRawXmlRequest(self, xml):
pass
def sendData(self, data):
pass