diff --git a/synapse/handlers/profile.py b/synapse/handlers/profile.py
index 43692b83a8..cb5c6d587e 100644
--- a/synapse/handlers/profile.py
+++ b/synapse/handlers/profile.py
@@ -256,7 +256,7 @@ class ProfileHandler(BaseHandler):
)
def _start_update_remote_profile_cache(self):
- run_as_background_process(
+ return run_as_background_process(
"Update remote profile", self._update_remote_profile_cache,
)
diff --git a/synapse/handlers/room.py b/synapse/handlers/room.py
index 003b848c00..7b7804d9b2 100644
--- a/synapse/handlers/room.py
+++ b/synapse/handlers/room.py
@@ -15,6 +15,7 @@
# limitations under the License.
"""Contains functions for performing events on rooms."""
+import itertools
import logging
import math
import string
@@ -401,7 +402,7 @@ class RoomContextHandler(object):
self.store = hs.get_datastore()
@defer.inlineCallbacks
- def get_event_context(self, user, room_id, event_id, limit):
+ def get_event_context(self, user, room_id, event_id, limit, event_filter):
"""Retrieves events, pagination tokens and state around a given event
in a room.
@@ -411,6 +412,8 @@ class RoomContextHandler(object):
event_id (str)
limit (int): The maximum number of events to return in total
(excluding state).
+ event_filter (Filter|None): the filter to apply to the events returned
+ (excluding the target event_id)
Returns:
dict, or None if the event isn't found
@@ -443,7 +446,7 @@ class RoomContextHandler(object):
)
results = yield self.store.get_events_around(
- room_id, event_id, before_limit, after_limit
+ room_id, event_id, before_limit, after_limit, event_filter
)
results["events_before"] = yield filter_evts(results["events_before"])
@@ -455,8 +458,23 @@ class RoomContextHandler(object):
else:
last_event_id = event_id
+ types = None
+ filtered_types = None
+ if event_filter and event_filter.lazy_load_members():
+ members = set(ev.sender for ev in itertools.chain(
+ results["events_before"],
+ (results["event"],),
+ results["events_after"],
+ ))
+ filtered_types = [EventTypes.Member]
+ types = [(EventTypes.Member, member) for member in members]
+
+ # XXX: why do we return the state as of the last event rather than the
+ # first? Shouldn't we be consistent with /sync?
+ # https://github.com/matrix-org/matrix-doc/issues/687
+
state = yield self.store.get_state_for_events(
- [last_event_id], None
+ [last_event_id], types, filtered_types=filtered_types,
)
results["state"] = list(state[last_event_id].values())
diff --git a/synapse/handlers/room_member.py b/synapse/handlers/room_member.py
index a832d91809..0d4a3f4677 100644
--- a/synapse/handlers/room_member.py
+++ b/synapse/handlers/room_member.py
@@ -708,6 +708,10 @@ class RoomMemberHandler(object):
inviter_display_name = member_event.content.get("displayname", "")
inviter_avatar_url = member_event.content.get("avatar_url", "")
+ # if user has no display name, default to their MXID
+ if not inviter_display_name:
+ inviter_display_name = user.to_string()
+
canonical_room_alias = ""
canonical_alias_event = room_state.get((EventTypes.CanonicalAlias, ""))
if canonical_alias_event:
diff --git a/synapse/handlers/search.py b/synapse/handlers/search.py
index 69ae9731d5..c464adbd0b 100644
--- a/synapse/handlers/search.py
+++ b/synapse/handlers/search.py
@@ -287,7 +287,7 @@ class SearchHandler(BaseHandler):
contexts = {}
for event in allowed_events:
res = yield self.store.get_events_around(
- event.room_id, event.event_id, before_limit, after_limit
+ event.room_id, event.event_id, before_limit, after_limit,
)
logger.info(
diff --git a/synapse/handlers/sync.py b/synapse/handlers/sync.py
index 4ced3144c8..dff1f67dcb 100644
--- a/synapse/handlers/sync.py
+++ b/synapse/handlers/sync.py
@@ -26,6 +26,8 @@ from synapse.api.constants import EventTypes, Membership
from synapse.push.clientformat import format_push_rules_for_user
from synapse.types import RoomStreamToken
from synapse.util.async import concurrently_execute
+from synapse.util.caches.expiringcache import ExpiringCache
+from synapse.util.caches.lrucache import LruCache
from synapse.util.caches.response_cache import ResponseCache
from synapse.util.logcontext import LoggingContext
from synapse.util.metrics import Measure, measure_func
@@ -33,6 +35,14 @@ from synapse.visibility import filter_events_for_client
logger = logging.getLogger(__name__)
+# Store the cache that tracks which lazy-loaded members have been sent to a given
+# client for no more than 30 minutes.
+LAZY_LOADED_MEMBERS_CACHE_MAX_AGE = 30 * 60 * 1000
+
+# Remember the last 100 members we sent to a client for the purposes of
+# avoiding redundantly sending the same lazy-loaded members to the client
+LAZY_LOADED_MEMBERS_CACHE_MAX_SIZE = 100
+
SyncConfig = collections.namedtuple("SyncConfig", [
"user",
@@ -182,6 +192,12 @@ class SyncHandler(object):
self.response_cache = ResponseCache(hs, "sync")
self.state = hs.get_state_handler()
+ # ExpiringCache((User, Device)) -> LruCache(state_key => event_id)
+ self.lazy_loaded_members_cache = ExpiringCache(
+ "lazy_loaded_members_cache", self.clock,
+ max_len=0, expiry_ms=LAZY_LOADED_MEMBERS_CACHE_MAX_AGE,
+ )
+
def wait_for_sync_for_user(self, sync_config, since_token=None, timeout=0,
full_state=False):
"""Get the sync for a client if we have new data for it now. Otherwise
@@ -505,9 +521,13 @@ class SyncHandler(object):
with Measure(self.clock, "compute_state_delta"):
types = None
- lazy_load_members = sync_config.filter_collection.lazy_load_members()
filtered_types = None
+ lazy_load_members = sync_config.filter_collection.lazy_load_members()
+ include_redundant_members = (
+ sync_config.filter_collection.include_redundant_members()
+ )
+
if lazy_load_members:
# We only request state for the members needed to display the
# timeline:
@@ -523,6 +543,11 @@ class SyncHandler(object):
# only apply the filtering to room members
filtered_types = [EventTypes.Member]
+ timeline_state = {
+ (event.type, event.state_key): event.event_id
+ for event in batch.events if event.is_state()
+ }
+
if full_state:
if batch:
current_state_ids = yield self.store.get_state_ids_for_event(
@@ -543,11 +568,6 @@ class SyncHandler(object):
state_ids = current_state_ids
- timeline_state = {
- (event.type, event.state_key): event.event_id
- for event in batch.events if event.is_state()
- }
-
state_ids = _calculate_state(
timeline_contains=timeline_state,
timeline_start=state_ids,
@@ -571,21 +591,6 @@ class SyncHandler(object):
filtered_types=filtered_types,
)
- timeline_state = {
- (event.type, event.state_key): event.event_id
- for event in batch.events if event.is_state()
- }
-
- # TODO: optionally filter out redundant membership events at this
- # point, to stop repeatedly sending members in every /sync as if
- # the client isn't tracking them.
- # When implemented, this should filter using event_ids (not mxids).
- # In practice, limited syncs are
- # relatively rare so it's not a total disaster to send redundant
- # members down at this point. Redundant members are ones which
- # repeatedly get sent down /sync because we don't know if the client
- # is caching them or not.
-
state_ids = _calculate_state(
timeline_contains=timeline_state,
timeline_start=state_at_timeline_start,
@@ -596,16 +601,48 @@ class SyncHandler(object):
else:
state_ids = {}
if lazy_load_members:
- # TODO: filter out redundant members based on their mxids (not their
- # event_ids) at this point. We know we can do it based on mxid as this
- # is an non-gappy incremental sync.
-
if types:
state_ids = yield self.store.get_state_ids_for_event(
batch.events[0].event_id, types=types,
filtered_types=filtered_types,
)
+ if lazy_load_members and not include_redundant_members:
+ cache_key = (sync_config.user.to_string(), sync_config.device_id)
+ cache = self.lazy_loaded_members_cache.get(cache_key)
+ if cache is None:
+ logger.debug("creating LruCache for %r", cache_key)
+ cache = LruCache(LAZY_LOADED_MEMBERS_CACHE_MAX_SIZE)
+ self.lazy_loaded_members_cache[cache_key] = cache
+ else:
+ logger.debug("found LruCache for %r", cache_key)
+
+ # if it's a new sync sequence, then assume the client has had
+ # amnesia and doesn't want any recent lazy-loaded members
+ # de-duplicated.
+ if since_token is None:
+ logger.debug("clearing LruCache for %r", cache_key)
+ cache.clear()
+ else:
+ # only send members which aren't in our LruCache (either
+ # because they're new to this client or have been pushed out
+ # of the cache)
+ logger.debug("filtering state from %r...", state_ids)
+ state_ids = {
+ t: event_id
+ for t, event_id in state_ids.iteritems()
+ if cache.get(t[1]) != event_id
+ }
+ logger.debug("...to %r", state_ids)
+
+ # add any member IDs we are about to send into our LruCache
+ for t, event_id in itertools.chain(
+ state_ids.items(),
+ timeline_state.items(),
+ ):
+ if t[0] == EventTypes.Member:
+ cache.set(t[1], event_id)
+
state = {}
if state_ids:
state = yield self.store.get_events(list(state_ids.values()))
|
