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Remove the ability to query relations when the original event was redacted. (#5629)

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Fixes #5594

Forbid viewing relations on an event once it has been redacted.
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Andrew Morgan 2019-07-18 14:41:42 +01:00 • committed by GitHub
parent fa8271c5ac
commit b2a382efdb
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5 changed files with 175 additions and 34 deletions
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65
synapse/rest/client/v2_alpha/relations.py
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@ -34,6 +34,7 @@ from synapse.http.servlet import (
from synapse.rest.client.transactions import HttpTransactionCache
from synapse.storage.relations import (
AggregationPaginationToken,
PaginationChunk,
RelationPaginationToken,
)
@ -153,23 +154,28 @@ class RelationPaginationServlet(RestServlet):
from_token = parse_string(request, "from")
to_token = parse_string(request, "to")
if from_token:
from_token = RelationPaginationToken.from_string(from_token)
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 = RelationPaginationToken.from_string(from_token)
if to_token:
to_token = RelationPaginationToken.from_string(to_token)
if to_token:
to_token = RelationPaginationToken.from_string(to_token)
result = yield 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,
)
pagination_chunk = yield 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 = yield self.store.get_events_as_list(
[c["event_id"] for c in result.chunk]
[c["event_id"] for c in pagination_chunk.chunk]
)
now = self.clock.time_msec()
@ -186,7 +192,7 @@ class RelationPaginationServlet(RestServlet):
events, now, bundle_aggregations=False
)
return_value = result.to_dict()
return_value = pagination_chunk.to_dict()
return_value["chunk"] = events
return_value["original_event"] = original_event
@ -234,7 +240,7 @@ class RelationAggregationPaginationServlet(RestServlet):
# This checks that a) the event exists and b) the user is allowed to
# view it.
yield self.event_handler.get_event(requester.user, room_id, parent_id)
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'")
@ -243,21 +249,26 @@ class RelationAggregationPaginationServlet(RestServlet):
from_token = parse_string(request, "from")
to_token = parse_string(request, "to")
if from_token:
from_token = AggregationPaginationToken.from_string(from_token)
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)
if to_token:
to_token = AggregationPaginationToken.from_string(to_token)
res = 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,
)
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, res.to_dict()))
defer.returnValue((200, pagination_chunk.to_dict()))
class RelationAggregationGroupPaginationServlet(RestServlet):