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

   1 import logging
   2
   3 import dbus
   4 import telepathy
   5
   6 import tp
   7 import util.go_utils as gobject_utils
   8 import util.misc as misc_utils
   9
  10
  11 _moduleLogger = logging.getLogger(__name__)
  12
  13
  14 class CallChannel(
  15                 tp.ChannelTypeStreamedMedia,
  16                 tp.ChannelInterfaceGroup,
  17                 tp.ChannelInterfaceCallState,
  18                 tp.ChannelInterfaceHold,
  19         ):
  20
  21         def __init__(self, connection, manager, props, contactHandle):
  22                 self.__manager = manager
  23                 self.__props = props
  24                 self._delayedClose = gobject_utils.Timeout(self._on_close_requested)
  25
  26                 if telepathy.interfaces.CHANNEL_INTERFACE + '.InitiatorHandle' in props:
  27                         self._initiator = connection.get_handle_by_id(
  28                                 telepathy.HANDLE_TYPE_CONTACT,
  29                                 props[telepathy.interfaces.CHANNEL_INTERFACE + '.InitiatorHandle'],
  30                         )
  31                 elif telepathy.interfaces.CHANNEL_INTERFACE + '.InitiatorID' in props:
  32                         self._initiator = connection.get_handle_by_name(
  33                                 telepathy.HANDLE_TYPE_CONTACT,
  34                                 props[telepathy.interfaces.CHANNEL_INTERFACE + '.InitiatorHandle'],
  35                         )
  36                 else:
  37                         # Maemo 5 seems to require InitiatorHandle/InitiatorID to be set
  38                         # even though I can't find them in the dbus spec.  I think its
  39                         # generally safe to assume that its locally initiated if not
  40                         # specified.  Specially for The One Ring, its always locally
  41                         # initiated
  42                         _moduleLogger.warning('InitiatorID or InitiatorHandle not set on new channel, assuming locally initiated')
  43                         self._initiator = connection.GetSelfHandle()
  44
  45                 tp.ChannelTypeStreamedMedia.__init__(self, connection, manager, props)
  46                 tp.ChannelInterfaceGroup.__init__(self)
  47                 tp.ChannelInterfaceCallState.__init__(self)
  48                 tp.ChannelInterfaceHold.__init__(self)
  49                 self.__contactHandle = contactHandle
  50                 self.__calledNumber = None
  51
  52                 self._implement_property_get(
  53                         telepathy.interfaces.CHANNEL_INTERFACE,
  54                         {
  55                                 'InitiatorHandle': lambda: dbus.UInt32(self._initiator.id),
  56                                 'InitiatorID': lambda: self._initiator.name,
  57                         },
  58                 )
  59                 self._add_immutables({
  60                         'InitiatorHandle': telepathy.interfaces.CHANNEL_INTERFACE,
  61                         'InitiatorID': telepathy.interfaces.CHANNEL_INTERFACE,
  62                 })
  63                 self._implement_property_get(
  64                         telepathy.interfaces.CHANNEL_INTERFACE_GROUP,
  65                         {
  66                                 'LocalPendingMembers': lambda: self.GetLocalPendingMembersWithInfo()
  67                         },
  68                 )
  69                 self._implement_property_get(
  70                         telepathy.interfaces.CHANNEL_TYPE_STREAMED_MEDIA,
  71                         {
  72                                 "InitialAudio": self.initial_audio,
  73                                 "InitialVideo": self.initial_video,
  74                         },
  75                 )
  76                 self._add_immutables({
  77                         'InitialAudio': telepathy.interfaces.CHANNEL_TYPE_STREAMED_MEDIA,
  78                         'InitialVideo': telepathy.interfaces.CHANNEL_TYPE_STREAMED_MEDIA,
  79                 })
  80
  81                 self.GroupFlagsChanged(0, 0)
  82                 added, removed = [self._conn.GetSelfHandle()], []
  83                 localPending, remotePending = [], [contactHandle]
  84                 self.MembersChanged(
  85                         '', added, removed, localPending, remotePending,
  86                         0, telepathy.CHANNEL_GROUP_CHANGE_REASON_NONE
  87                 )
  88
  89         def initial_audio(self):
  90                 return False
  91
  92         def initial_video(self):
  93                 return False
  94
  95         @misc_utils.log_exception(_moduleLogger)
  96         def Close(self):
  97                 self.close()
  98
  99         def close(self):
 100                 _moduleLogger.debug("Closing call")
 101                 self._delayedClose.cancel()
 102
 103                 tp.ChannelTypeStreamedMedia.Close(self)
 104                 self.remove_from_connection()
 105
 106                 if self.__calledNumber is not None:
 107                         le = gobject_utils.AsyncLinearExecution(self._conn.session.pool, self._cancel)
 108                         le.start()
 109
 110         @misc_utils.log_exception(_moduleLogger)
 111         def GetLocalPendingMembersWithInfo(self):
 112                 info = dbus.Array([], signature="(uuus)")
 113                 for member in self._local_pending:
 114                         info.append((member, self._handle, 0, ''))
 115                 return info
 116
 117         @misc_utils.log_exception(_moduleLogger)
 118         def AddMembers(self, handles, message):
 119                 _moduleLogger.info("Add members %r: %s" % (handles, message))
 120                 for handle in handles:
 121                         if handle == int(self.GetSelfHandle()) and self.GetSelfHandle() in self._local_pending:
 122                                 _moduleLogger.info("Technically the user just accepted the call")
 123
 124         @misc_utils.log_exception(_moduleLogger)
 125         def RemoveMembers(self, handles, message):
 126                 _moduleLogger.info("Remove members (no-op) %r: %s" % (handles, message))
 127
 128         @misc_utils.log_exception(_moduleLogger)
 129         def RemoveMembersWithReason(self, handles, message, reason):
 130                 _moduleLogger.info("Remove members (no-op) %r: %s (%i)" % (handles, message, reason))
 131
 132         @misc_utils.log_exception(_moduleLogger)
 133         def ListStreams(self):
 134                 """
 135                 For org.freedesktop.Telepathy.Channel.Type.StreamedMedia
 136                 """
 137                 return ()
 138
 139         @misc_utils.log_exception(_moduleLogger)
 140         def RemoveStreams(self, streams):
 141                 """
 142                 For org.freedesktop.Telepathy.Channel.Type.StreamedMedia
 143                 """
 144                 raise telepathy.errors.NotImplemented("Cannot remove a stream")
 145
 146         @misc_utils.log_exception(_moduleLogger)
 147         def RequestStreamDirection(self, stream, streamDirection):
 148                 """
 149                 For org.freedesktop.Telepathy.Channel.Type.StreamedMedia
 150
 151                 @note Since streams are short lived, not bothering to implement this
 152                 """
 153                 _moduleLogger.info("A request was made to change the stream direction")
 154                 raise telepathy.errors.NotImplemented("Cannot change directions")
 155
 156         @misc_utils.log_exception(_moduleLogger)
 157         def RequestStreams(self, contactId, streamTypes):
 158                 """
 159                 For org.freedesktop.Telepathy.Channel.Type.StreamedMedia
 160
 161                 @returns [(Stream ID, contact, stream type, stream state, stream direction, pending send flags)]
 162                 """
 163                 contact = self._conn.get_handle_by_id(telepathy.constants.HANDLE_TYPE_CONTACT, contactId)
 164                 assert self.__contactHandle == contact, "%r != %r" % (self.__contactHandle, contact)
 165
 166                 le = gobject_utils.AsyncLinearExecution(self._conn.session.pool, self._call)
 167                 le.start(contact)
 168
 169                 streamId = 0
 170                 streamState = telepathy.constants.MEDIA_STREAM_STATE_CONNECTED
 171                 streamDirection = telepathy.constants.MEDIA_STREAM_DIRECTION_BIDIRECTIONAL
 172                 pendingSendFlags = telepathy.constants.MEDIA_STREAM_PENDING_REMOTE_SEND
 173                 return [(streamId, contact, streamTypes[0], streamState, streamDirection, pendingSendFlags)]
 174
 175         @misc_utils.log_exception(_moduleLogger)
 176         def _call(self, contact):
 177                 contactNumber = contact.phoneNumber
 178
 179                 self.__calledNumber = contactNumber
 180                 self.CallStateChanged(self.__contactHandle, telepathy.constants.CHANNEL_CALL_STATE_RINGING)
 181
 182                 try:
 183                         result = yield (
 184                                 self._conn.session.backend.call,
 185                                 (contactNumber, ),
 186                                 {},
 187                         )
 188                 except Exception:
 189                         _moduleLogger.exception(result)
 190                         return
 191
 192                 self._delayedClose.start(seconds=0)
 193                 self.CallStateChanged(self.__contactHandle, telepathy.constants.CHANNEL_CALL_STATE_FORWARDED)
 194
 195         @misc_utils.log_exception(_moduleLogger)
 196         def _cancel(self):
 197                 _moduleLogger.debug("Cancelling call")
 198                 try:
 199                         result = yield (
 200                                 self._conn.session.backend.cancel,
 201                                 (self.__calledNumber, ),
 202                                 {},
 203                         )
 204                 except Exception:
 205                         _moduleLogger.exception(result)
 206                         return
 207
 208         @misc_utils.log_exception(_moduleLogger)
 209         def GetCallStates(self):
 210                 """
 211                 For org.freedesktop.Telepathy.Channel.Interface.CallState
 212
 213                 Get the current call states for all contacts involved in this call.
 214                 @returns {Contact: telepathy.constants.CHANNEL_CALL_STATE_*}
 215                 """
 216                 return {self.__contactHandle: telepathy.constants.CHANNEL_CALL_STATE_FORWARDED}
 217
 218         @misc_utils.log_exception(_moduleLogger)
 219         def GetHoldState(self):
 220                 """
 221                 For org.freedesktop.Telepathy.Channel.Interface.Hold
 222
 223                 Get the current hold state
 224                 @returns (HoldState, Reason)
 225                 """
 226                 return (
 227                         telepathy.constants.LOCAL_HOLD_STATE_UNHELD,
 228                         telepathy.constants.LOCAL_HOLD_STATE_REASON_NONE,
 229                 )
 230
 231         @misc_utils.log_exception(_moduleLogger)
 232         def RequestHold(self, Hold):
 233                 """
 234                 For org.freedesktop.Telepathy.Channel.Interface.Hold
 235                 """
 236                 if not Hold:
 237                         return
 238                 _moduleLogger.debug("Closing without cancel to get out of users way")
 239                 self.__calledNumber = None
 240                 self.close()
 241
 242         @misc_utils.log_exception(_moduleLogger)
 243         def _on_close_requested(self, *args):
 244                 _moduleLogger.debug("Cancel now disallowed")
 245                 self.__calledNumber = None
 246                 self.close()