diff --git a/synapse/rest/admin/__init__.py b/synapse/rest/admin/__init__.py
index f5c5d164f9..8457db1e22 100644
--- a/synapse/rest/admin/__init__.py
+++ b/synapse/rest/admin/__init__.py
@@ -42,6 +42,7 @@ from synapse.rest.admin.rooms import (
JoinRoomAliasServlet,
ListRoomRestServlet,
MakeRoomAdminRestServlet,
+ RoomEventContextServlet,
RoomMembersRestServlet,
RoomRestServlet,
RoomStateRestServlet,
@@ -238,6 +239,7 @@ def register_servlets(hs, http_server):
MakeRoomAdminRestServlet(hs).register(http_server)
ShadowBanRestServlet(hs).register(http_server)
ForwardExtremitiesRestServlet(hs).register(http_server)
+ RoomEventContextServlet(hs).register(http_server)
def register_servlets_for_client_rest_resource(hs, http_server):
diff --git a/synapse/rest/admin/rooms.py b/synapse/rest/admin/rooms.py
index 3e57e6a4d0..491f9ca095 100644
--- a/synapse/rest/admin/rooms.py
+++ b/synapse/rest/admin/rooms.py
@@ -15,9 +15,11 @@
import logging
from http import HTTPStatus
from typing import TYPE_CHECKING, List, Optional, Tuple
+from urllib import parse as urlparse
from synapse.api.constants import EventTypes, JoinRules, Membership
from synapse.api.errors import AuthError, Codes, NotFoundError, SynapseError
+from synapse.api.filtering import Filter
from synapse.http.servlet import (
RestServlet,
assert_params_in_dict,
@@ -33,6 +35,7 @@ from synapse.rest.admin._base import (
)
from synapse.storage.databases.main.room import RoomSortOrder
from synapse.types import JsonDict, RoomAlias, RoomID, UserID, create_requester
+from synapse.util import json_decoder
if TYPE_CHECKING:
from synapse.server import HomeServer
@@ -605,3 +608,65 @@ class ForwardExtremitiesRestServlet(RestServlet):
extremities = await self.store.get_forward_extremities_for_room(room_id)
return 200, {"count": len(extremities), "results": extremities}
+
+
+class RoomEventContextServlet(RestServlet):
+ """
+ Provide the context for an event.
+ This API is designed to be used when system administrators wish to look at
+ an abuse report and understand what happened during and immediately prior
+ to this event.
+ """
+
+ PATTERNS = admin_patterns("/rooms/(?P<room_id>[^/]*)/context/(?P<event_id>[^/]*)$")
+
+ def __init__(self, hs):
+ super().__init__()
+ self.clock = hs.get_clock()
+ self.room_context_handler = hs.get_room_context_handler()
+ self._event_serializer = hs.get_event_client_serializer()
+ self.auth = hs.get_auth()
+
+ async def on_GET(self, request, room_id, event_id):
+ requester = await self.auth.get_user_by_req(request, allow_guest=False)
+ await assert_user_is_admin(self.auth, requester.user)
+
+ limit = parse_integer(request, "limit", default=10)
+
+ # picking the API shape for symmetry with /messages
+ filter_str = parse_string(request, b"filter", encoding="utf-8")
+ if filter_str:
+ filter_json = urlparse.unquote(filter_str)
+ event_filter = Filter(
+ json_decoder.decode(filter_json)
+ ) # type: Optional[Filter]
+ else:
+ event_filter = None
+
+ results = await self.room_context_handler.get_event_context(
+ requester,
+ room_id,
+ event_id,
+ limit,
+ event_filter,
+ use_admin_priviledge=True,
+ )
+
+ if not results:
+ raise SynapseError(404, "Event not found.", errcode=Codes.NOT_FOUND)
+
+ time_now = self.clock.time_msec()
+ results["events_before"] = await self._event_serializer.serialize_events(
+ results["events_before"], time_now
+ )
+ results["event"] = await self._event_serializer.serialize_event(
+ results["event"], time_now
+ )
+ results["events_after"] = await self._event_serializer.serialize_events(
+ results["events_after"], time_now
+ )
+ results["state"] = await self._event_serializer.serialize_events(
+ results["state"], time_now
+ )
+
+ return 200, results
diff --git a/synapse/rest/client/v1/room.py b/synapse/rest/client/v1/room.py
index f95627ee61..90fd98c53e 100644
--- a/synapse/rest/client/v1/room.py
+++ b/synapse/rest/client/v1/room.py
@@ -650,7 +650,7 @@ class RoomEventContextServlet(RestServlet):
event_filter = None
results = await self.room_context_handler.get_event_context(
- requester.user, room_id, event_id, limit, event_filter
+ requester, room_id, event_id, limit, event_filter
)
if not results:
|
