async def on_GET(
self,
request: SynapseRequest,
room_id: str,
parent_id: str,
relation_type: Optional[str] = None,
event_type: Optional[str] = None,
) -> Tuple[int, JsonDict]:
requester = await self.auth.get_user_by_req(request, allow_guest=True)
await self.auth.check_user_in_room_or_world_readable(
room_id,
requester.user.to_string(),
allow_departed_users=True,
)
# This checks that a) the event exists and b) the user is allowed to
# view it.
event = await self.event_handler.get_event(requester.user, room_id,
parent_id)
if event is None:
raise SynapseError(404, "Unknown parent event.")
if relation_type not in (RelationTypes.ANNOTATION, None):
raise SynapseError(
400, f"Relation type must be '{RelationTypes.ANNOTATION}'")
limit = parse_integer(request, "limit", default=5)
from_token_str = parse_string(request, "from")
to_token_str = parse_string(request, "to")
if event.internal_metadata.is_redacted():
# If the event is redacted, return an empty list of relations
pagination_chunk = PaginationChunk(chunk=[])
else:
# Return the relations
from_token = None
if from_token_str:
from_token = AggregationPaginationToken.from_string(
from_token_str)
to_token = None
if to_token_str:
to_token = AggregationPaginationToken.from_string(to_token_str)
pagination_chunk = await self.store.get_aggregation_groups_for_event(
event_id=parent_id,
room_id=room_id,
event_type=event_type,
limit=limit,
from_token=from_token,
to_token=to_token,
)
return 200, pagination_chunk.to_dict()
def on_GET(self,
request,
room_id,
parent_id,
relation_type=None,
event_type=None):
requester = yield self.auth.get_user_by_req(request, allow_guest=True)
yield self.auth.check_in_room_or_world_readable(
room_id, requester.user.to_string())
# This checks that a) the event exists and b) the user is allowed to
# view it.
event = yield self.event_handler.get_event(requester.user, room_id,
parent_id)
if relation_type not in (RelationTypes.ANNOTATION, None):
raise SynapseError(400, "Relation type must be 'annotation'")
limit = parse_integer(request, "limit", default=5)
from_token = parse_string(request, "from")
to_token = parse_string(request, "to")
if event.internal_metadata.is_redacted():
# If the event is redacted, return an empty list of relations
pagination_chunk = PaginationChunk(chunk=[])
else:
# Return the relations
if from_token:
from_token = AggregationPaginationToken.from_string(from_token)
if to_token:
to_token = AggregationPaginationToken.from_string(to_token)
pagination_chunk = yield self.store.get_aggregation_groups_for_event(
event_id=parent_id,
event_type=event_type,
limit=limit,
from_token=from_token,
to_token=to_token,
)
defer.returnValue((200, pagination_chunk.to_dict()))
def _get_aggregation_groups_for_event_txn(txn):
txn.execute(sql, where_args + [limit + 1])
next_batch = None
events = []
for row in txn:
events.append({"type": row[0], "key": row[1], "count": row[2]})
next_batch = AggregationPaginationToken(row[2], row[3])
if len(events) <= limit:
next_batch = None
return PaginationChunk(chunk=list(events[:limit]),
next_batch=next_batch,
prev_batch=from_token)
def _get_recent_references_for_event_txn(txn):
txn.execute(sql, where_args + [limit + 1])
last_topo_id = None
last_stream_id = None
events = []
for row in txn:
events.append({"event_id": row[0]})
last_topo_id = row[1]
last_stream_id = row[2]
next_batch = None
if len(events) > limit and last_topo_id and last_stream_id:
next_batch = RelationPaginationToken(last_topo_id, last_stream_id)
return PaginationChunk(
chunk=list(events[:limit]), next_batch=next_batch, prev_batch=from_token
)
async def on_GET(self,
request,
room_id,
parent_id,
relation_type=None,
event_type=None):
requester = await self.auth.get_user_by_req(request, allow_guest=True)
await self.auth.check_user_in_room_or_world_readable(
room_id, requester.user.to_string(), allow_departed_users=True)
# This gets the original event and checks that a) the event exists and
# b) the user is allowed to view it.
event = await self.event_handler.get_event(requester.user, room_id,
parent_id)
limit = parse_integer(request, "limit", default=5)
from_token_str = parse_string(request, "from")
to_token_str = parse_string(request, "to")
if event.internal_metadata.is_redacted():
# If the event is redacted, return an empty list of relations
pagination_chunk = PaginationChunk(chunk=[])
else:
# Return the relations
from_token = None
if from_token_str:
from_token = RelationPaginationToken.from_string(
from_token_str)
to_token = None
if to_token_str:
to_token = RelationPaginationToken.from_string(to_token_str)
pagination_chunk = await self.store.get_relations_for_event(
event_id=parent_id,
relation_type=relation_type,
event_type=event_type,
limit=limit,
from_token=from_token,
to_token=to_token,
)
events = await self.store.get_events_as_list(
[c["event_id"] for c in pagination_chunk.chunk])
now = self.clock.time_msec()
# We set bundle_aggregations to False when retrieving the original
# event because we want the content before relations were applied to
# it.
original_event = await self._event_serializer.serialize_event(
event, now, bundle_aggregations=False)
# Similarly, we don't allow relations to be applied to relations, so we
# return the original relations without any aggregations on top of them
# here.
events = await self._event_serializer.serialize_events(
events, now, bundle_aggregations=False)
return_value = pagination_chunk.to_dict()
return_value["chunk"] = events
return_value["original_event"] = original_event
return 200, return_value
async def on_GET(
self,
request: SynapseRequest,
room_id: str,
parent_id: str,
relation_type: Optional[str] = None,
event_type: Optional[str] = None,
) -> Tuple[int, JsonDict]:
requester = await self.auth.get_user_by_req(request, allow_guest=True)
await self.auth.check_user_in_room_or_world_readable(
room_id, requester.user.to_string(), allow_departed_users=True)
# This gets the original event and checks that a) the event exists and
# b) the user is allowed to view it.
event = await self.event_handler.get_event(requester.user, room_id,
parent_id)
if event is None:
raise SynapseError(404, "Unknown parent event.")
limit = parse_integer(request, "limit", default=5)
from_token_str = parse_string(request, "from")
to_token_str = parse_string(request, "to")
if event.internal_metadata.is_redacted():
# If the event is redacted, return an empty list of relations
pagination_chunk = PaginationChunk(chunk=[])
else:
# Return the relations
from_token = None
if from_token_str:
from_token = RelationPaginationToken.from_string(
from_token_str)
to_token = None
if to_token_str:
to_token = RelationPaginationToken.from_string(to_token_str)
pagination_chunk = await self.store.get_relations_for_event(
event_id=parent_id,
room_id=room_id,
relation_type=relation_type,
event_type=event_type,
limit=limit,
from_token=from_token,
to_token=to_token,
)
events = await self.store.get_events_as_list(
[c["event_id"] for c in pagination_chunk.chunk])
now = self.clock.time_msec()
# Do not bundle aggregations when retrieving the original event because
# we want the content before relations are applied to it.
original_event = self._event_serializer.serialize_event(
event, now, bundle_aggregations=None)
# The relations returned for the requested event do include their
# bundled aggregations.
aggregations = await self.store.get_bundled_aggregations(
events, requester.user.to_string())
serialized_events = self._event_serializer.serialize_events(
events, now, bundle_aggregations=aggregations)
return_value = pagination_chunk.to_dict()
return_value["chunk"] = serialized_events
return_value["original_event"] = original_event
return 200, return_value