# Copyright (C) 2007, Red Hat, Inc.
#
# This program 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 2 of the License, or
# (at your option) any later version.
#
# This program 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 this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
import gobject
import dbus, dbus.service, dbus.glib
import logging
from telepathy.client import ManagerRegistry, Connection
from telepathy.interfaces import (CONN_MGR_INTERFACE, CONN_INTERFACE)
from telepathy.constants import (CONNECTION_STATUS_CONNECTING, CONNECTION_STATUS_CONNECTED,
CONNECTION_STATUS_DISCONNECTED, CONNECTION_HANDLE_TYPE_CONTACT)
from server_plugin import ServerPlugin
from linklocal_plugin import LinkLocalPlugin
from sugar import util
from buddy import Buddy, ShellOwner, TestOwner
from activity import Activity
_PRESENCE_SERVICE = "org.laptop.Sugar.Presence"
_PRESENCE_INTERFACE = "org.laptop.Sugar.Presence"
_PRESENCE_PATH = "/org/laptop/Sugar/Presence"
class NotFoundError(dbus.DBusException):
def __init__(self):
dbus.DBusException.__init__(self)
self._dbus_error_name = _PRESENCE_INTERFACE + '.NotFound'
class DBusGObjectMetaclass(dbus.service.InterfaceType, gobject.GObjectMeta): pass
class DBusGObject(dbus.service.Object, gobject.GObject): __metaclass__ = DBusGObjectMetaclass
class PresenceService(DBusGObject):
__gtype_name__ = "PresenceService"
__gsignals__ = {
'connection-status': (gobject.SIGNAL_RUN_FIRST, gobject.TYPE_NONE,
([gobject.TYPE_BOOLEAN]))
}
def __init__(self, test=0):
self._next_object_id = 0
self._connected = False
self._buddies = {} # key -> Buddy
self._handles_buddies = {} # tp client -> (handle -> Buddy)
self._activities = {} # activity id -> Activity
gobject.GObject.__init__(self)
bus = dbus.SessionBus()
self._bus_name = dbus.service.BusName(_PRESENCE_SERVICE, bus=bus)
# Create the Owner object
objid = self._get_next_object_id()
if test > 0:
self._owner = TestOwner(self, self._bus_name, objid, test)
else:
self._owner = ShellOwner(self, self._bus_name, objid)
self._buddies[self._owner.props.key] = self._owner
self._registry = ManagerRegistry()
self._registry.LoadManagers()
# Set up the server connection
self._server_plugin = ServerPlugin(self._registry, self._owner)
self._handles_buddies[self._server_plugin] = {}
self._server_plugin.connect('status', self._server_status_cb)
self._server_plugin.connect('contact-online', self._contact_online)
self._server_plugin.connect('contact-offline', self._contact_offline)
self._server_plugin.connect('avatar-updated', self._avatar_updated)
self._server_plugin.connect('buddy-properties-changed', self._buddy_properties_changed)
self._server_plugin.connect('buddy-activities-changed', self._buddy_activities_changed)
self._server_plugin.connect('activity-invitation', self._activity_invitation)
self._server_plugin.connect('private-invitation', self._private_invitation)
self._server_plugin.connect('activity-properties-changed', self._activity_properties_changed)
self._server_plugin.start()
# Set up the link local connection
self._ll_plugin = LinkLocalPlugin(self._registry, self._owner)
self._handles_buddies[self._ll_plugin] = {}
dbus.service.Object.__init__(self, self._bus_name, _PRESENCE_PATH)
def _activity_shared_cb(self, tp, activity, success, exc, async_cb, async_err_cb):
if success:
async_cb(activity.object_path())
else:
del self._activities[activity.props.id]
async_err_cb(exc)
def _server_status_cb(self, plugin, status, reason):
# FIXME: figure out connection status when we have a salut plugin too
old_status = self._connected
if status == CONNECTION_STATUS_CONNECTED:
self._connected = True
else:
self._connected = False
if self._connected != old_status:
self.emit('connection-status', self._connected)
def _contact_online(self, tp, handle, props):
new_buddy = False
key = props["key"]
buddy = self._buddies.get(key)
if not buddy:
# we don't know yet this buddy
objid = self._get_next_object_id()
buddy = Buddy(self._bus_name, objid, key=key)
buddy.connect("validity-changed", self._buddy_validity_changed_cb)
self._buddies[key] = buddy
buddies = self._handles_buddies[tp]
buddies[handle] = buddy
# store the handle of the buddy for this CM
buddy.handles[tp] = handle
buddy.set_properties(props)
def _buddy_validity_changed_cb(self, buddy, valid):
if valid:
self.BuddyAppeared(buddy.object_path())
logging.debug("New Buddy: %s (%s)" % (buddy.props.nick, buddy.props.color))
else:
self.BuddyDisappeared(buddy.object_path())
logging.debug("Buddy left: %s (%s)" % (buddy.props.nick, buddy.props.color))
def _contact_offline(self, tp, handle):
if not self._handles_buddies[tp].has_key(handle):
return
buddy = self._handles_buddies[tp].pop(handle)
key = buddy.props.key
# the handle of the buddy for this CM is not valid anymore
buddy.handles.pop(tp)
if not buddy.handles:
if buddy.props.valid:
self.BuddyDisappeared(buddy.object_path())
logging.debug("Buddy left: %s (%s)" % (buddy.props.nick, buddy.props.color))
self._buddies.pop(key)
def _get_next_object_id(self):
"""Increment and return the object ID counter."""
self._next_object_id = self._next_object_id + 1
return self._next_object_id
def _avatar_updated(self, tp, handle, avatar):
buddy = self._handles_buddies[tp].get(handle)
if buddy and not buddy.props.owner:
logging.debug("Buddy %s icon updated" % buddy.props.nick)
buddy.props.icon = avatar
def _buddy_properties_changed(self, tp, handle, properties):
buddy = self._handles_buddies[tp].get(handle)
if buddy:
buddy.set_properties(properties)
logging.debug("Buddy %s properties updated: %s" % (buddy.props.nick, properties.keys()))
def _new_activity(self, activity_id, tp):
try:
objid = self._get_next_object_id()
activity = Activity(self._bus_name, objid, tp, id=activity_id)
except Exception, e:
logging.debug("Invalid activity: %s" % e)
return None
activity.connect("validity-changed", self._activity_validity_changed_cb)
self._activities[activity_id] = activity
return activity
def _remove_activity(self, activity):
logging.debug("remove activity", activity.props.id)
self.ActivityDisappeared(activity.object_path())
del self._activities[activity.props.id]
def _buddy_activities_changed(self, tp, contact_handle, activities):
acts = []
for act in activities:
acts.append(str(act))
logging.debug("Handle %s activities changed: %s" % (contact_handle, acts))
buddies = self._handles_buddies[tp]
buddy = buddies.get(contact_handle)
if not buddy:
# We don't know this buddy
# FIXME: What should we do here?
# FIXME: Do we need to check if the buddy is valid or something?
logging.debug("contact_activities_changed: buddy unknown")
return
old_activities = set()
for activity in buddy.get_joined_activities():
old_activities.add(activity.props.id)
new_activities = set(activities)
activities_joined = new_activities - old_activities
for act in activities_joined:
logging.debug("Handle %s joined activity %s" % (contact_handle, act))
activity = self._activities.get(act)
if not activity:
# new activity, can fail
activity = self._new_activity(act, tp)
if activity:
activity.buddy_joined(buddy)
buddy.add_activity(activity)
activities_left = old_activities - new_activities
for act in activities_left:
logging.debug("Handle %s left activity %s" % (contact_handle, act))
activity = self._activities.get(act)
if not activity:
continue
activity.buddy_left(buddy)
buddy.remove_activity(activity)
if not activity.get_joined_buddies():
self._remove_activity(activity)
def _activity_invitation(self, tp, act_id):
activity = self._activities.get(act_id)
if activity:
self.ActivityInvitation(activity.object_path())
def _private_invitation(self, tp, chan_path):
conn = tp.get_connection()
self.PrivateInvitation(str(conn.service_name), conn.object_path, chan_path)
@dbus.service.signal(_PRESENCE_INTERFACE, signature="o")
def ActivityAppeared(self, activity):
pass
@dbus.service.signal(_PRESENCE_INTERFACE, signature="o")
def ActivityDisappeared(self, activity):
pass
@dbus.service.signal(_PRESENCE_INTERFACE, signature="o")
def BuddyAppeared(self, buddy):
pass
@dbus.service.signal(_PRESENCE_INTERFACE, signature="o")
def BuddyDisappeared(self, buddy):
pass
@dbus.service.signal(_PRESENCE_INTERFACE, signature="o")
def ActivityInvitation(self, activity):
pass
@dbus.service.signal(_PRESENCE_INTERFACE, signature="soo")
def PrivateInvitation(self, bus_name, connection, channel):
pass
@dbus.service.method(_PRESENCE_INTERFACE, out_signature="ao")
def GetActivities(self):
ret = []
for act in self._activities.values():
if act.props.valid:
ret.append(act.object_path())
return ret
@dbus.service.method(_PRESENCE_INTERFACE, in_signature="s", out_signature="o")
def GetActivityById(self, actid):
act = self.internal_get_activity(actid)
if not act or not act.props.valid:
raise NotFoundError("The activity was not found.")
return act.object_path()
@dbus.service.method(_PRESENCE_INTERFACE, out_signature="ao")
def GetBuddies(self):
ret = []
for buddy in self._buddies.values():
if buddy.props.valid:
ret.append(buddy.object_path())
return ret
@dbus.service.method(_PRESENCE_INTERFACE, in_signature="ay", out_signature="o")
def GetBuddyByPublicKey(self, key):
key = psutils.bytes_to_string(key)
if self._buddies.has_key(key):
buddy = self._buddies[key]
if buddy.props.valid:
return buddy.object_path()
raise NotFoundError("The buddy was not found.")
@dbus.service.method(_PRESENCE_INTERFACE, out_signature="o")
def GetOwner(self):
if not self._owner:
raise NotFoundError("The owner was not found.")
else:
return self._owner.get_object_path()
@dbus.service.method(_PRESENCE_INTERFACE, in_signature="sssa{sv}",
out_signature="o", async_callbacks=('async_cb', 'async_err_cb'))
def ShareActivity(self, actid, atype, name, properties, async_cb, async_err_cb):
self._share_activity(actid, atype, name, properties, (async_cb, async_err_cb))
@dbus.service.method(_PRESENCE_INTERFACE, out_signature="so")
def GetPreferredConnection(self):
conn = self._server_plugin.get_connection()
return str(conn.service_name), conn.object_path
def cleanup(self):
for tp in self._handles_buddies:
tp.cleanup()
def _share_activity(self, actid, atype, name, properties, callbacks):
objid = self._get_next_object_id()
# FIXME check which tp client we should use to share the activity
color = self._owner.props.color
activity = Activity(self._bus_name, objid, self._server_plugin,
id=actid, type=atype, name=name, color=color, local=True)
activity.connect("validity-changed", self._activity_validity_changed_cb)
self._activities[actid] = activity
activity._share(callbacks, self._owner)
# local activities are valid at creation by definition, but we can't
# connect to the activity's validity-changed signal until its already
# issued the signal, which happens in the activity's constructor
# for local activities.
self._activity_validity_changed_cb(activity, activity.props.valid)
def _activity_validity_changed_cb(self, activity, valid):
if valid:
self.ActivityAppeared(activity.object_path())
logging.debug("New Activity: %s (%s)" % (activity.props.name, activity.props.id))
else:
self.ActivityDisappeared(activity.object_path())
logging.debug("Activity disappeared: %s (%s)" % (activity.props.name, activity.props.id))
def _activity_properties_changed(self, tp, act_id, props):
activity = self._activities.get(act_id)
if activity:
activity.set_properties(props)
def internal_get_activity(self, actid):
if not self._activities.has_key(actid):
return None
return self._activities[actid]
def main(test=False):
loop = gobject.MainLoop()
ps = PresenceService(test)
try:
loop.run()
except KeyboardInterrupt:
ps.cleanup()
logging.debug('Ctrl+C pressed, exiting...')
if __name__ == "__main__":
main()