You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
120 lines
3.2 KiB
Python
120 lines
3.2 KiB
Python
import avahi
|
|
|
|
from Buddy import Buddy
|
|
from Buddy import Owner
|
|
from Buddy import PRESENCE_SERVICE_TYPE
|
|
from Service import Service
|
|
from sugar.p2p.model.Store import Store
|
|
import presence
|
|
|
|
class Group:
|
|
SERVICE_ADDED = "service_added"
|
|
SERVICE_REMOVED = "service_removed"
|
|
|
|
BUDDY_JOIN = "buddy_join"
|
|
BUDDY_LEAVE = "buddy_leave"
|
|
|
|
def __init__(self):
|
|
self._service_listeners = []
|
|
self._presence_listeners = []
|
|
self._store = Store(self)
|
|
|
|
def get_store(self):
|
|
return self._store
|
|
|
|
def join(self):
|
|
pass
|
|
|
|
def add_service_listener(self, listener):
|
|
self._service_listeners.append(listener)
|
|
|
|
def add_presence_listener(self, listener):
|
|
self._presence_listeners.append(listener)
|
|
|
|
def _notify_service_added(self, service):
|
|
for listener in self._service_listeners:
|
|
listener(Group.SERVICE_ADDED, service)
|
|
|
|
def _notify_service_removed(self, service_id):
|
|
for listener in self._service_listeners:
|
|
listener(Group.SERVICE_REMOVED, service_id)
|
|
|
|
def _notify_buddy_join(self, buddy):
|
|
for listener in self._presence_listeners:
|
|
listener(Group.BUDDY_JOIN, buddy)
|
|
|
|
def _notify_buddy_leave(self, buddy):
|
|
for listener in self._presence_listeners:
|
|
listener(Group.BUDDY_LEAVE, buddy)
|
|
|
|
class LocalGroup(Group):
|
|
def __init__(self):
|
|
Group.__init__(self)
|
|
|
|
self._services = {}
|
|
self._buddies = {}
|
|
|
|
self._pdiscovery = presence.PresenceDiscovery()
|
|
self._pdiscovery.add_service_listener(self._on_service_change)
|
|
self._pdiscovery.start()
|
|
|
|
def get_owner(self):
|
|
return self._owner
|
|
|
|
def add_service(self, service):
|
|
sid = (service.get_name(), service.get_type())
|
|
self._services[sid] = service
|
|
self._notify_service_added(service)
|
|
|
|
def remove_service(self, service_id):
|
|
self._notify_service_removed(service_id)
|
|
del self._services[service_id]
|
|
|
|
def join(self):
|
|
self._owner = Owner(self)
|
|
self._owner.register()
|
|
|
|
def get_service(self, name, stype):
|
|
if self._services.has_key((name, stype)):
|
|
return self._services[(name, stype)]
|
|
else:
|
|
return None
|
|
|
|
def get_buddy(self, name):
|
|
return self._buddies[name]
|
|
|
|
def _add_buddy(self, buddy):
|
|
bid = buddy.get_nick_name()
|
|
if not self._buddies.has_key(bid):
|
|
self._buddies[bid] = buddy
|
|
self._notify_buddy_join(buddy)
|
|
|
|
def _remove_buddy(self, buddy):
|
|
self._notify_buddy_leave(buddy)
|
|
del self._buddies[buddy.get_nick_name()]
|
|
|
|
def _on_service_change(self, action, interface, protocol, name, stype, domain, flags):
|
|
if action == presence.ACTION_SERVICE_NEW:
|
|
self._pdiscovery.resolve_service(interface, protocol, name, stype, domain,
|
|
self._on_service_resolved)
|
|
elif action == presence.ACTION_SERVICE_REMOVED:
|
|
if stype == PRESENCE_SERVICE_TYPE:
|
|
self._remove_buddy(name)
|
|
elif stype.startswith("_olpc"):
|
|
self.remove_service((name, stype))
|
|
|
|
def _on_service_resolved(self, interface, protocol, name, stype, domain,
|
|
host, aprotocol, address, port, txt, flags):
|
|
service = Service(name, stype, port)
|
|
service.set_address(address)
|
|
|
|
for prop in avahi.txt_array_to_string_array(txt):
|
|
(key, value) = prop.split('=')
|
|
if key == 'group_address':
|
|
service.set_group_address(value)
|
|
|
|
if stype == PRESENCE_SERVICE_TYPE:
|
|
self._add_buddy(Buddy(service, name))
|
|
elif stype.startswith("_olpc"):
|
|
self.add_service(service)
|