diff options
Diffstat (limited to 'synapse')
| -rw-r--r-- | synapse/config/experimental.py | 3 | ||||
| -rw-r--r-- | synapse/events/utils.py | 31 | ||||
| -rw-r--r-- | synapse/server.py | 2 |
3 files changed, 28 insertions, 8 deletions
diff --git a/synapse/config/experimental.py b/synapse/config/experimental.py index 0f3870bfe1..a8b2db372d 100644 --- a/synapse/config/experimental.py +++ b/synapse/config/experimental.py @@ -139,3 +139,6 @@ class ExperimentalConfig(Config): # MSC3391: Removing account data. self.msc3391_enabled = experimental.get("msc3391_enabled", False) + + # MSC3925: do not replace events with their edits + self.msc3925_inhibit_edit = experimental.get("msc3925_inhibit_edit", False) diff --git a/synapse/events/utils.py b/synapse/events/utils.py index 13fa93afb8..ae57a4df5e 100644 --- a/synapse/events/utils.py +++ b/synapse/events/utils.py @@ -403,6 +403,14 @@ class EventClientSerializer: clients. """ + def __init__(self, inhibit_replacement_via_edits: bool = False): + """ + Args: + inhibit_replacement_via_edits: If this is set to True, then events are + never replaced by their edits. + """ + self._inhibit_replacement_via_edits = inhibit_replacement_via_edits + def serialize_event( self, event: Union[JsonDict, EventBase], @@ -422,6 +430,8 @@ class EventClientSerializer: into the event. apply_edits: Whether the content of the event should be modified to reflect any replacement in `bundle_aggregations[<event_id>].replace`. + See also the `inhibit_replacement_via_edits` constructor arg: if that is + set to True, then this argument is ignored. Returns: The serialized event """ @@ -495,7 +505,8 @@ class EventClientSerializer: again for additional events in a recursive manner. serialized_event: The serialized event which may be modified. apply_edits: Whether the content of the event should be modified to reflect - any replacement in `aggregations.replace`. + any replacement in `aggregations.replace` (subject to the + `inhibit_replacement_via_edits` constructor arg). """ # We have already checked that aggregations exist for this event. @@ -518,15 +529,21 @@ class EventClientSerializer: if event_aggregations.replace: # If there is an edit, optionally apply it to the event. edit = event_aggregations.replace - if apply_edits: + if apply_edits and not self._inhibit_replacement_via_edits: self._apply_edit(event, serialized_event, edit) # Include information about it in the relations dict. - serialized_aggregations[RelationTypes.REPLACE] = { - "event_id": edit.event_id, - "origin_server_ts": edit.origin_server_ts, - "sender": edit.sender, - } + # + # Matrix spec v1.5 (https://spec.matrix.org/v1.5/client-server-api/#server-side-aggregation-of-mreplace-relationships) + # said that we should only include the `event_id`, `origin_server_ts` and + # `sender` of the edit; however MSC3925 proposes extending it to the whole + # of the edit, which is what we do here. + serialized_aggregations[RelationTypes.REPLACE] = self.serialize_event( + edit, + time_now, + config=config, + apply_edits=False, + ) # Include any threaded replies to this event. if event_aggregations.thread: diff --git a/synapse/server.py b/synapse/server.py index 5baae2325e..f4ab94c4f3 100644 --- a/synapse/server.py +++ b/synapse/server.py @@ -743,7 +743,7 @@ class HomeServer(metaclass=abc.ABCMeta): @cache_in_self def get_event_client_serializer(self) -> EventClientSerializer: - return EventClientSerializer() + return EventClientSerializer(self.config.experimental.msc3925_inhibit_edit) @cache_in_self def get_password_policy_handler(self) -> PasswordPolicyHandler: |