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Pull full state for each room all at once

This commit is contained in:
Erik Johnston 2016-06-08 15:43:37 +01:00
parent b063784b78
commit 81c07a32fd
1 changed files with 16 additions and 16 deletions
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32
synapse/handlers/room.py
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@ -20,7 +20,7 @@ from ._base import BaseHandler
from synapse.types import UserID, RoomAlias, RoomID, RoomStreamToken
from synapse.api.constants import (
EventTypes, JoinRules, RoomCreationPreset,
EventTypes, JoinRules, RoomCreationPreset, Membership,
)
from synapse.api.errors import AuthError, StoreError, SynapseError
from synapse.util import stringutils
@ -367,14 +367,10 @@ class RoomListHandler(BaseHandler):
@defer.inlineCallbacks
def handle_room(room_id):
# We pull each bit of state out indvidually to avoid pulling the
# full state into memory. Due to how the caching works this should
# be fairly quick, even if not originally in the cache.
def get_state(etype, state_key):
return self.state_handler.get_current_state(room_id, etype, state_key)
current_state = yield self.state_handler.get_current_state(room_id)
# Double check that this is actually a public room.
join_rules_event = yield get_state(EventTypes.JoinRules, "")
join_rules_event = current_state.get((EventTypes.JoinRules, ""))
if join_rules_event:
join_rule = join_rules_event.content.get("join_rule", None)
if join_rule and join_rule != JoinRules.PUBLIC:
@ -382,47 +378,51 @@ class RoomListHandler(BaseHandler):
result = {"room_id": room_id}
joined_users = yield self.store.get_users_in_room(room_id)
if len(joined_users) == 0:
num_joined_users = len([
1 for _, event in current_state.items()
if event.type == EventTypes.Member
and event.membership == Membership.JOIN
])
if num_joined_users == 0:
return
result["num_joined_members"] = len(joined_users)
result["num_joined_members"] = num_joined_users
aliases = yield self.store.get_aliases_for_room(room_id)
if aliases:
result["aliases"] = aliases
name_event = yield get_state(EventTypes.Name, "")
name_event = yield current_state.get((EventTypes.Name, ""))
if name_event:
name = name_event.content.get("name", None)
if name:
result["name"] = name
topic_event = yield get_state(EventTypes.Topic, "")
topic_event = current_state.get((EventTypes.Topic, ""))
if topic_event:
topic = topic_event.content.get("topic", None)
if topic:
result["topic"] = topic
canonical_event = yield get_state(EventTypes.CanonicalAlias, "")
canonical_event = current_state.get((EventTypes.CanonicalAlias, ""))
if canonical_event:
canonical_alias = canonical_event.content.get("alias", None)
if canonical_alias:
result["canonical_alias"] = canonical_alias
visibility_event = yield get_state(EventTypes.RoomHistoryVisibility, "")
visibility_event = current_state.get((EventTypes.RoomHistoryVisibility, ""))
visibility = None
if visibility_event:
visibility = visibility_event.content.get("history_visibility", None)
result["world_readable"] = visibility == "world_readable"
guest_event = yield get_state(EventTypes.GuestAccess, "")
guest_event = current_state.get((EventTypes.GuestAccess, ""))
guest = None
if guest_event:
guest = guest_event.content.get("guest_access", None)
result["guest_can_join"] = guest == "can_join"
avatar_event = yield get_state("m.room.avatar", "")
avatar_event = current_state.get(("m.room.avatar", ""))
if avatar_event:
avatar_url = avatar_event.content.get("url", None)
if avatar_url: