Create placeholder Owner object when PS starts, fill in services later

shell/PresenceService/Buddy.py

@@ -85,29 +85,35 @@ class Buddy(object):
 	"""Represents another person on the network and keeps track of the
 	activities and resources they make available for sharing."""
 
-	def __init__(self, bus_name, object_id, service, owner=False):
+	def __init__(self, bus_name, object_id, service):
 		if not bus_name:
 			raise ValueError("DBus bus name must be valid")
 		if not object_id or type(object_id) != type(1):
 			raise ValueError("object id must be a valid number")
+		# Normal Buddy objects must be created with a valid service,
+		# owner objects do not
+		if not isinstance(self, Owner):
 			if not isinstance(service, Service.Service):
 				raise ValueError("service must be a valid service object")
 
 		self._services = {}
 		self._activities = {}
 
+		self._nick_name = None
+		self._address = None
+		if service is not None:
 			self._nick_name = service.get_name()
 			self._address = service.get_source_address()
 		self._color = None
 		self._valid = False
 		self._icon = None
 		self._icon_tries = 0
-		self._owner = owner
 
 		self._object_id = object_id
 		self._object_path = BUDDY_DBUS_OBJECT_PATH + str(self._object_id)
 		self._dbus_helper = BuddyDBusHelper(self, bus_name, self._object_path)
 
+		if service is not None:
 			self.add_service(service)
 
 	def object_path(self):
@@ -263,14 +269,33 @@ class Buddy(object):
 			self._dbus_helper.IconChanged()
 
 	def is_owner(self):
-		return self._owner
+		return False
 
 
 class Owner(Buddy):
 	"""Class representing the owner of the machine.  This is the client
 	portion of the Owner, paired with the server portion in Owner.py."""
-	def __init__(self, bus_name, object_id, service):
+	def __init__(self, ps, bus_name, object_id, nick):
-		Buddy.__init__(self, bus_name, object_id, service, owner=True)
+		Buddy.__init__(self, bus_name, object_id, None)
+		self._nick_name = nick
+		self._ps = ps
+
+	def add_service(self, service):
+		"""Adds a new service to this buddy's service list, returning
+		True if the service was successfully added, and False if it was not."""
+		if service.get_name() != self._nick_name:
+			return False
+
+		# The Owner initially doesn't have an address, so the first
+		# service added to the Owner determines the owner's address
+		source_addr = service.get_source_address()
+		if self._address is None:
+			if source_addr in self._ps.is_local_ip_address(source_addr):
+				self._address = source_addr
+		return Buddy.add_service(self, service)
+
+	def is_owner(self):
+		return True
 
 
 #################################################################

shell/PresenceService/PresenceService.py

@@ -7,6 +7,7 @@ import logging
 from sugar import env
 from sugar import util
 
+
 def _get_local_ip_address(ifname):
 	"""Call Linux specific bits to retrieve our own IP address."""
 	import socket
@@ -241,9 +242,6 @@ class PresenceService(object):
 
 		self._next_object_id = 0
 
-		# Our owner object
-		self._owner = None
-
 		self._buddies = {} 		# nick -> Buddy
 		self._services = {}		# (name, type) -> Service
 		self._activities = {}	# activity id -> Activity
@@ -264,6 +262,11 @@ class PresenceService(object):
 		self._bus_name = dbus.service.BusName(_PRESENCE_SERVICE, bus=self._session_bus)		
 		self._dbus_helper = PresenceServiceDBusHelper(self, self._bus_name)
 
+		# Our owner object
+		owner_nick = env.get_nick_name()
+		objid = self._get_next_object_id()
+		self._owner = Buddy.Owner(self, self._bus_name, objid, owner_nick)
+
 		self._started = False
 
 	def start(self):
@@ -337,6 +340,11 @@ class PresenceService(object):
 	def get_owner(self):
 		return self._owner
 
+	def is_local_ip_address(self, address):
+		if address in self._local_addrs.values():
+			return True
+		return False
+
 	def _find_service_adv(self, interface=None, protocol=None, name=None, stype=None, domain=None):
 		"""Search a list of service advertisements for ones matching certain criteria."""
 		adv_list = []
@@ -368,15 +376,8 @@ class PresenceService(object):
 			if service_added:
 				self._dbus_helper.ServiceAppeared(service.object_path())
 		except KeyError:
-			# Should this service mark the owner?
-			owner_nick = env.get_nick_name()
 			source_addr = service.get_source_address()
 			objid = self._get_next_object_id()
-			if name == owner_nick and source_addr in self._local_addrs.values():
-				buddy = Buddy.Owner(self._bus_name, objid, service)
-				self._owner = buddy
-				logging.debug("Owner is '%s'." % name)
-			else:
 			buddy = Buddy.Buddy(self._bus_name, objid, service)
 			self._buddies[name] = buddy
 			self._dbus_helper.ServiceAppeared(service.object_path())