git.maemo.org Git - theonering/blob - src/channel/text.py

   1 import time
   2 import datetime
   3 import logging
   4
   5 import telepathy
   6
   7 import util.go_utils as gobject_utils
   8 import util.coroutines as coroutines
   9 import gtk_toolbox
  10
  11
  12 _moduleLogger = logging.getLogger("channel.text")
  13
  14
  15 class TextChannel(telepathy.server.ChannelTypeText):
  16         """
  17         Look into implementing ChannelInterfaceMessages for rich text formatting
  18         """
  19
  20         def __init__(self, connection, h):
  21                 telepathy.server.ChannelTypeText.__init__(self, connection, h)
  22                 self._nextRecievedId = 0
  23                 self._lastMessageTimestamp = datetime.datetime(1, 1, 1)
  24
  25                 self._otherHandle = h
  26
  27                 self._callback = coroutines.func_sink(
  28                         coroutines.expand_positional(
  29                                 self._on_conversations_updated
  30                         )
  31                 )
  32                 self._conn.session.conversations.updateSignalHandler.register_sink(
  33                         self._callback
  34                 )
  35
  36                 # The only reason there should be anything in the conversation is if
  37                 # its new, so report it all
  38                 try:
  39                         conversation = self._conn.session.conversations.get_conversation(self._contactKey)
  40                 except KeyError:
  41                         pass
  42                 else:
  43                         self._report_conversation(conversation)
  44
  45         @gtk_toolbox.log_exception(_moduleLogger)
  46         def Send(self, messageType, text):
  47                 if messageType != telepathy.CHANNEL_TEXT_MESSAGE_TYPE_NORMAL:
  48                         raise telepathy.errors.NotImplemented("Unhandled message type: %r" % messageType)
  49
  50                 self._conn.session.backend.send_sms(self._otherHandle.phoneNumber, text)
  51
  52                 self.Sent(int(time.time()), messageType, text)
  53
  54         @gtk_toolbox.log_exception(_moduleLogger)
  55         def Close(self):
  56                 try:
  57                         # Clear since the user has seen it all and it should start a new conversation
  58                         self._conn.session.conversations.clear_conversation(self._contactKey)
  59
  60                         self._conn.session.conversations.updateSignalHandler.unregister_sink(
  61                                 self._callback
  62                         )
  63                 finally:
  64                         telepathy.server.ChannelTypeText.Close(self)
  65                         self.remove_from_connection()
  66
  67         @property
  68         def _contactKey(self):
  69                 contactKey = self._otherHandle.contactID, self._otherHandle.phoneNumber
  70                 return contactKey
  71
  72         @gobject_utils.async
  73         @gtk_toolbox.log_exception(_moduleLogger)
  74         def _on_conversations_updated(self, conv, conversationIds):
  75                 if self._contactKey not in conversationIds:
  76                         return
  77                 _moduleLogger.info("Incoming messages from %r for existing conversation" % (self._contactKey, ))
  78                 conversation = self._conn.session.conversations.get_conversation(self._contactKey)
  79                 self._report_conversation(conversation)
  80
  81         def _report_conversation(self, conversation):
  82                 # @bug? Check if messages sent need to be filtered out
  83                 completeMessageHistory = conversation["messageParts"]
  84                 messages = self._filter_seen_messages(completeMessageHistory)
  85                 self._lastMessageTimestamp = messages[-1][0]
  86                 formattedMessage = self._format_messages(messages)
  87                 self._report_new_message(formattedMessage)
  88
  89         def _filter_seen_messages(self, messages):
  90                 return [
  91                         message
  92                         for message in messages
  93                         if self._lastMessageTimestamp < message[0]
  94                 ]
  95
  96         def _format_messages(self, messages):
  97                 return "\n".join(message[1] for message in messages)
  98
  99         def _report_new_message(self, message):
 100                 currentReceivedId = self._nextRecievedId
 101
 102                 timestamp = int(time.time())
 103                 type = telepathy.CHANNEL_TEXT_MESSAGE_TYPE_NORMAL
 104
 105                 _moduleLogger.info("Received message from User %r" % self._otherHandle)
 106                 self.Received(currentReceivedId, timestamp, self._otherHandle, type, 0, message)
 107
 108                 self._nextRecievedId += 1