Store a list of the presence serial number at which remote users went offline, so that when we delete them from the cachemap, we can still synthesize OFFLINE events for them (SYN-261)

This commit is contained in:
Paul "LeoNerd" Evans 2015-04-23 18:40:19 +01:00
parent 191f7f09ce
commit 8a785c3006
2 changed files with 59 additions and 0 deletions

View File

@ -135,6 +135,9 @@ class PresenceHandler(BaseHandler):
self._remote_sendmap = {}
# map remote users to sets of local users who're interested in them
self._remote_recvmap = {}
# list of (serial, set of(userids)) tuples, ordered by serial, latest
# first
self._remote_offline_serials = []
# map any user to a UserPresenceCache
self._user_cachemap = {}
@ -715,6 +718,10 @@ class PresenceHandler(BaseHandler):
)
if state["presence"] == PresenceState.OFFLINE:
self._remote_offline_serials.insert(
0,
(self._user_cachemap_latest_serial, set([user.to_string()]))
)
del self._user_cachemap[user]
for poll in content.get("poll", []):
@ -856,6 +863,20 @@ class PresenceEventSource(object):
# TODO(paul): limit
for serial, user_ids in presence._remote_offline_serials:
if serial < from_key:
break
for u in user_ids:
updates.append({
"type": "m.presence",
"content": {"user_id": u, "presence": PresenceState.OFFLINE},
})
# TODO(paul): For the v2 API we want to tell the client their from_key
# is too old if we fell off the end of the _remote_offline_serials
# list, and get them to invalidate+resync. In v1 we have no such
# concept so this is a best-effort result.
if updates:
defer.returnValue((updates, latest_serial))
else:

View File

@ -878,6 +878,44 @@ class PresencePushTestCase(MockedDatastorePresenceTestCase):
state
)
@defer.inlineCallbacks
def test_recv_remote_offline(self):
""" Various tests relating to SYN-261 """
potato_set = self.handler._remote_recvmap.setdefault(self.u_potato,
set())
potato_set.add(self.u_apple)
self.room_members = [self.u_banana, self.u_potato]
self.assertEquals(self.event_source.get_current_key(), 0)
yield self.mock_federation_resource.trigger("PUT",
"/_matrix/federation/v1/send/1000000/",
_make_edu_json("elsewhere", "m.presence",
content={
"push": [
{"user_id": "@potato:remote",
"presence": "offline"},
],
}
)
)
self.assertEquals(self.event_source.get_current_key(), 1)
(events, _) = yield self.event_source.get_new_events_for_user(
self.u_apple, 0, None
)
self.assertEquals(events,
[
{"type": "m.presence",
"content": {
"user_id": "@potato:remote",
"presence": OFFLINE,
}}
]
)
@defer.inlineCallbacks
def test_join_room_local(self):
self.room_members = [self.u_apple, self.u_banana]