diff --git a/synapse/event_auth.py b/synapse/event_auth.py
index d184b0273b..350ed9351f 100644
--- a/synapse/event_auth.py
+++ b/synapse/event_auth.py
@@ -14,6 +14,7 @@
# limitations under the License.
import logging
+from typing import Set, Tuple
from canonicaljson import encode_canonical_json
from signedjson.key import decode_verify_key_bytes
@@ -637,7 +638,7 @@ def get_public_keys(invite_event):
return public_keys
-def auth_types_for_event(event):
+def auth_types_for_event(event) -> Set[Tuple[str]]:
"""Given an event, return a list of (EventType, StateKey) that may be
needed to auth the event. The returned list may be a superset of what
would actually be required depending on the full state of the room.
@@ -646,20 +647,20 @@ def auth_types_for_event(event):
actually auth the event.
"""
if event.type == EventTypes.Create:
- return []
+ return set()
- auth_types = [
+ auth_types = {
(EventTypes.PowerLevels, ""),
(EventTypes.Member, event.sender),
(EventTypes.Create, ""),
- ]
+ }
if event.type == EventTypes.Member:
membership = event.content["membership"]
if membership in [Membership.JOIN, Membership.INVITE]:
- auth_types.append((EventTypes.JoinRules, ""))
+ auth_types.add((EventTypes.JoinRules, ""))
- auth_types.append((EventTypes.Member, event.state_key))
+ auth_types.add((EventTypes.Member, event.state_key))
if membership == Membership.INVITE:
if "third_party_invite" in event.content:
@@ -667,6 +668,6 @@ def auth_types_for_event(event):
EventTypes.ThirdPartyInvite,
event.content["third_party_invite"]["signed"]["token"],
)
- auth_types.append(key)
+ auth_types.add(key)
return auth_types
|
