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import dbus
import dbus.glib
import gobject
import sys
from account import connection_from_file
from telepathy.client.channel import Channel
from telepathy.constants import (
CONNECTION_HANDLE_TYPE_NONE, CONNECTION_HANDLE_TYPE_CONTACT,
CONNECTION_STATUS_CONNECTED, CONNECTION_STATUS_DISCONNECTED,
MEDIA_STREAM_TYPE_AUDIO, MEDIA_STREAM_TYPE_VIDEO)
from telepathy.interfaces import (
CHANNEL_INTERFACE, CHANNEL_INTERFACE_GROUP, CHANNEL_TYPE_STREAMED_MEDIA,
CONN_INTERFACE, CONN_INTERFACE_CAPABILITIES)
import logging
logging.basicConfig()
def get_stream_engine():
bus = dbus.Bus()
return bus.get_object(
'org.freedesktop.Telepathy.StreamEngine',
'/org/freedesktop/Telepathy/StreamEngine')
class Call:
def __init__(self, account_file):
self.conn = connection_from_file(account_file,
ready_handler=self.ready_cb)
self.channel = None
self.conn[CONN_INTERFACE].connect_to_signal('StatusChanged',
self.status_changed_cb)
self.conn[CONN_INTERFACE].connect_to_signal('NewChannel',
self.new_channel_cb)
def run_main_loop(self):
self.loop = gobject.MainLoop()
self.loop.run()
def run(self):
print "connecting"
self.conn[CONN_INTERFACE].Connect()
try:
self.run_main_loop()
except KeyboardInterrupt:
print "killed"
if self.channel:
print "closing channel"
self.channel[CHANNEL_INTERFACE].Close()
try:
print "disconnecting"
self.conn[CONN_INTERFACE].Disconnect()
except dbus.DBusException:
pass
def quit(self):
if self.loop:
self.loop.quit()
self.loop = None
def status_changed_cb(self, state, reason):
if state == CONNECTION_STATUS_DISCONNECTED:
print 'connection closed'
self.quit()
def ready_cb(self, conn):
pass
def request_channel_error_cb(self, exception):
print 'error:', exception
self.quit()
def new_channel_cb(self, object_path, channel_type, handle_type, handle,
suppress_handler):
if channel_type != CHANNEL_TYPE_STREAMED_MEDIA:
return
self.chan_handle_type = handle_type
self.chan_handle = handle
print "new streamed media channel"
Channel(self.conn.service_name, object_path,
ready_handler=self.channel_ready_cb)
def channel_ready_cb(self, channel):
print "channel ready"
channel[CHANNEL_INTERFACE].connect_to_signal('Closed', self.closed_cb)
channel[CHANNEL_INTERFACE_GROUP].connect_to_signal('MembersChanged',
self.members_changed_cb)
stream_engine = get_stream_engine()
handler = dbus.Interface(stream_engine,
'org.freedesktop.Telepathy.ChannelHandler')
handler.HandleChannel(
self.conn.service_name,
self.conn.object_path,
CHANNEL_TYPE_STREAMED_MEDIA,
channel.object_path,
self.chan_handle_type,
self.chan_handle)
self.channel = channel
def closed_cb(self):
print "channel closed"
self.quit()
def members_changed_cb(self, message, added, removed, local_pending,
remote_pending, actor, reason):
print 'MembersChanged', (
added, removed, local_pending, remote_pending, actor, reason)
class OutgoingCall(Call):
def __init__(self, account_file, contact):
Call.__init__(self, account_file)
self.contact = contact
def ready_cb(self, conn):
handle = self.conn[CONN_INTERFACE].RequestHandles(
CONNECTION_HANDLE_TYPE_CONTACT, [self.contact])[0]
self.handle = handle
print 'got handle %d for %s' % (handle, self.contact)
# hack - wait for capabilities to come in
import time
time.sleep(5)
self.conn[CONN_INTERFACE].RequestChannel(
CHANNEL_TYPE_STREAMED_MEDIA, CONNECTION_HANDLE_TYPE_NONE,
0, True,
reply_handler=lambda *stuff: None,
error_handler=self.request_channel_error_cb)
def channel_ready_cb(self, channel):
Call.channel_ready_cb(self, channel)
channel[CHANNEL_INTERFACE_GROUP].AddMembers([self.handle], "")
print "requesting audio/video streams"
try:
channel[CHANNEL_TYPE_STREAMED_MEDIA].RequestStreams(
self.handle,
[MEDIA_STREAM_TYPE_AUDIO, MEDIA_STREAM_TYPE_VIDEO]);
except dbus.DBusException, e:
print "failed:", e
print "requesting audio stream"
try:
channel[CHANNEL_TYPE_STREAMED_MEDIA].RequestStreams(
self.handle, [MEDIA_STREAM_TYPE_AUDIO]);
except dbus.DBusException, e:
print "failed:", e
print "giving up"
self.quit()
class IncomingCall(Call):
def ready_cb(self, conn):
self.conn[CONN_INTERFACE_CAPABILITIES].AdvertiseCapabilities(
[(CHANNEL_TYPE_STREAMED_MEDIA, 3)], [])
def channel_ready_cb(self, channel):
Call.channel_ready_cb(self, channel)
print "accepting incoming call"
pending = channel[CHANNEL_INTERFACE_GROUP].GetLocalPendingMembers()
channel[CHANNEL_INTERFACE_GROUP].AddMembers(pending, "")
if __name__ == '__main__':
args = sys.argv[1:]
assert len(args) in (1, 2)
if len(args) > 1:
contact = args[1]
call = OutgoingCall(args[0], args[1])
else:
call = IncomingCall(args[0])
call.run()
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