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                         mergedConversations = self._conn.session.conversations.get_conversation(self._contactKey)
  40                 except KeyError:
  41                         pass
  42                 else:
  43                         self._report_conversation(mergedConversations)
  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                 self._conn.session.stateMachine.reset_timers()
  52
  53                 self.Sent(int(time.time()), messageType, text)
  54
  55         @gtk_toolbox.log_exception(_moduleLogger)
  56         def Close(self):
  57                 self.close()
  58
  59         def close(self):
  60                 _moduleLogger.info("Closing text channel for %r" % (self._otherHandle, ))
  61                 self._conn.session.conversations.updateSignalHandler.unregister_sink(
  62                         self._callback
  63                 )
  64                 self._callback = None
  65
  66                 telepathy.server.ChannelTypeText.Close(self)
  67                 self.remove_from_connection()
  68                 self._prop_getters = None # HACK to get around python-telepathy memory leaks
  69
  70         @property
  71         def _contactKey(self):
  72                 contactKey = self._otherHandle.contactID, self._otherHandle.phoneNumber
  73                 return contactKey
  74
  75         @gobject_utils.async
  76         @gtk_toolbox.log_exception(_moduleLogger)
  77         def _on_conversations_updated(self, conv, conversationIds):
  78                 if self._contactKey not in conversationIds:
  79                         return
  80                 _moduleLogger.info("Incoming messages from %r for existing conversation" % (self._contactKey, ))
  81                 mergedConversations = self._conn.session.conversations.get_conversation(self._contactKey)
  82                 self._report_conversation(mergedConversations)
  83
  84         def _report_conversation(self, mergedConversations):
  85                 newConversations = mergedConversations.conversations
  86                 newConversations = self._filter_out_reported(newConversations)
  87                 newConversations = self._filter_out_read(newConversations)
  88                 newConversations = list(newConversations)
  89                 if not newConversations:
  90                         _moduleLogger.info(
  91                                 "New messages for %r have already been read externally" % (self._contactKey, )
  92                         )
  93                         return
  94                 self._lastMessageTimestamp = newConversations[-1].time
  95
  96                 messages = [
  97                         newMessage
  98                         for newConversation in newConversations
  99                         for newMessage in newConversation.messages
 100                         if newMessage.whoFrom != "Me:"
 101                 ]
 102                 if not newConversations:
 103                         _moduleLogger.info(
 104                                 "All incoming messages were really outbound messages for %r" % (self._contactKey, )
 105                         )
 106                         return
 107
 108                 for newMessage in messages:
 109                         formattedMessage = self._format_message(newMessage)
 110                         self._report_new_message(formattedMessage)
 111
 112         def _filter_out_reported(self, conversations):
 113                 return (
 114                         conversation
 115                         for conversation in conversations
 116                         if self._lastMessageTimestamp < conversation.time
 117                 )
 118
 119         def _filter_out_read(self, conversations):
 120                 return (
 121                         conversation
 122                         for conversation in conversations
 123                         if not conversation.isRead and not conversation.isArchived
 124                 )
 125
 126         def _format_message(self, message):
 127                 return " ".join(part.text.strip() for part in message.body)
 128
 129         def _report_new_message(self, message):
 130                 currentReceivedId = self._nextRecievedId
 131
 132                 timestamp = int(time.time())
 133                 type = telepathy.CHANNEL_TEXT_MESSAGE_TYPE_NORMAL
 134
 135                 _moduleLogger.info("Received message from User %r" % self._otherHandle)
 136                 self.Received(currentReceivedId, timestamp, self._otherHandle, type, 0, message)
 137
 138                 self._nextRecievedId += 1