diff --git a/synapse/rest/client/v2_alpha/relations.py b/synapse/rest/client/v2_alpha/relations.py
index 89002ffbff..18c75738f8 100644
--- a/synapse/rest/client/v2_alpha/relations.py
+++ b/synapse/rest/client/v2_alpha/relations.py
@@ -22,7 +22,7 @@ any time to reflect changes in the MSC.
import logging
from synapse.api.constants import EventTypes, RelationTypes
-from synapse.api.errors import SynapseError
+from synapse.api.errors import ShadowBanError, SynapseError
from synapse.http.servlet import (
RestServlet,
parse_integer,
@@ -35,6 +35,7 @@ from synapse.storage.relations import (
PaginationChunk,
RelationPaginationToken,
)
+from synapse.util.stringutils import random_string
from ._base import client_patterns
@@ -60,7 +61,7 @@ class RelationSendServlet(RestServlet):
)
def __init__(self, hs):
- super(RelationSendServlet, self).__init__()
+ super().__init__()
self.auth = hs.get_auth()
self.event_creation_handler = hs.get_event_creation_handler()
self.txns = HttpTransactionCache(hs)
@@ -111,11 +112,18 @@ class RelationSendServlet(RestServlet):
"sender": requester.user.to_string(),
}
- event, _ = await self.event_creation_handler.create_and_send_nonmember_event(
- requester, event_dict=event_dict, txn_id=txn_id
- )
+ try:
+ (
+ event,
+ _,
+ ) = await self.event_creation_handler.create_and_send_nonmember_event(
+ requester, event_dict=event_dict, txn_id=txn_id
+ )
+ event_id = event.event_id
+ except ShadowBanError:
+ event_id = "$" + random_string(43)
- return 200, {"event_id": event.event_id}
+ return 200, {"event_id": event_id}
class RelationPaginationServlet(RestServlet):
@@ -130,7 +138,7 @@ class RelationPaginationServlet(RestServlet):
)
def __init__(self, hs):
- super(RelationPaginationServlet, self).__init__()
+ super().__init__()
self.auth = hs.get_auth()
self.store = hs.get_datastore()
self.clock = hs.get_clock()
@@ -225,7 +233,7 @@ class RelationAggregationPaginationServlet(RestServlet):
)
def __init__(self, hs):
- super(RelationAggregationPaginationServlet, self).__init__()
+ super().__init__()
self.auth = hs.get_auth()
self.store = hs.get_datastore()
self.event_handler = hs.get_event_handler()
@@ -303,7 +311,7 @@ class RelationAggregationGroupPaginationServlet(RestServlet):
)
def __init__(self, hs):
- super(RelationAggregationGroupPaginationServlet, self).__init__()
+ super().__init__()
self.auth = hs.get_auth()
self.store = hs.get_datastore()
self.clock = hs.get_clock()
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