diff --git a/synapse/module_api/__init__.py b/synapse/module_api/__init__.py
index d707a9325d..36042ed2e0 100644
--- a/synapse/module_api/__init__.py
+++ b/synapse/module_api/__init__.py
@@ -33,6 +33,7 @@ import jinja2
from twisted.internet import defer
from twisted.web.resource import IResource
+from synapse.api.errors import SynapseError
from synapse.events import EventBase
from synapse.events.presence_router import PresenceRouter
from synapse.http.client import SimpleHttpClient
@@ -625,8 +626,105 @@ class ModuleApi:
state = yield defer.ensureDeferred(self._store.get_events(state_ids.values()))
return state.values()
+ async def update_room_membership(
+ self,
+ sender: str,
+ target: str,
+ room_id: str,
+ new_membership: str,
+ content: Optional[JsonDict] = None,
+ ) -> EventBase:
+ """Updates the membership of a user to the given value.
+
+ Added in Synapse v1.46.0.
+
+ Args:
+ sender: The user performing the membership change. Must be a user local to
+ this homeserver.
+ target: The user whose membership is changing. This is often the same value
+ as `sender`, but it might differ in some cases (e.g. when kicking a user,
+ the `sender` is the user performing the kick and the `target` is the user
+ being kicked).
+ room_id: The room in which to change the membership.
+ new_membership: The new membership state of `target` after this operation. See
+ https://spec.matrix.org/unstable/client-server-api/#mroommember for the
+ list of allowed values.
+ content: Additional values to include in the resulting event's content.
+
+ Returns:
+ The newly created membership event.
+
+ Raises:
+ RuntimeError if the `sender` isn't a local user.
+ ShadowBanError if a shadow-banned requester attempts to send an invite.
+ SynapseError if the module attempts to send a membership event that isn't
+ allowed, either by the server's configuration (e.g. trying to set a
+ per-room display name that's too long) or by the validation rules around
+ membership updates (e.g. the `membership` value is invalid).
+ """
+ if not self.is_mine(sender):
+ raise RuntimeError(
+ "Tried to send an event as a user that isn't local to this homeserver",
+ )
+
+ requester = create_requester(sender)
+ target_user_id = UserID.from_string(target)
+
+ if content is None:
+ content = {}
+
+ # Set the profile if not already done by the module.
+ if "avatar_url" not in content or "displayname" not in content:
+ try:
+ # Try to fetch the user's profile.
+ profile = await self._hs.get_profile_handler().get_profile(
+ target_user_id.to_string(),
+ )
+ except SynapseError as e:
+ # If the profile couldn't be found, use default values.
+ profile = {
+ "displayname": target_user_id.localpart,
+ "avatar_url": None,
+ }
+
+ if e.code != 404:
+ # If the error isn't 404, it means we tried to fetch the profile over
+ # federation but the remote server responded with a non-standard
+ # status code.
+ logger.error(
+ "Got non-404 error status when fetching profile for %s",
+ target_user_id.to_string(),
+ )
+
+ # Set the profile where it needs to be set.
+ if "avatar_url" not in content:
+ content["avatar_url"] = profile["avatar_url"]
+
+ if "displayname" not in content:
+ content["displayname"] = profile["displayname"]
+
+ event_id, _ = await self._hs.get_room_member_handler().update_membership(
+ requester=requester,
+ target=target_user_id,
+ room_id=room_id,
+ action=new_membership,
+ content=content,
+ )
+
+ # Try to retrieve the resulting event.
+ event = await self._hs.get_datastore().get_event(event_id)
+
+ # update_membership is supposed to always return after the event has been
+ # successfully persisted.
+ assert event is not None
+
+ return event
+
async def create_and_send_event_into_room(self, event_dict: JsonDict) -> EventBase:
- """Create and send an event into a room. Membership events are currently not supported.
+ """Create and send an event into a room.
+
+ Membership events are not supported by this method. To update a user's membership
+ in a room, please use the `update_room_membership` method instead.
Added in Synapse v1.22.0.
|
