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Return NOT_JSON if decode fails and defer set_timeline_upper_limit ca… #14262

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Oct 24, 2022
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1 change: 1 addition & 0 deletions changelog.d/14262.misc
Original file line number Diff line number Diff line change
@@ -0,0 +1 @@
Provide a specific error code when a `/sync` request provides a filter which doesn't represent a JSON object.
8 changes: 4 additions & 4 deletions synapse/rest/client/sync.py
Original file line number Diff line number Diff line change
Expand Up @@ -146,12 +146,12 @@ async def on_GET(self, request: SynapseRequest) -> Tuple[int, JsonDict]:
elif filter_id.startswith("{"):
try:
filter_object = json_decoder.decode(filter_id)
set_timeline_upper_limit(
filter_object, self.hs.config.server.filter_timeline_limit
)
except Exception:
raise SynapseError(400, "Invalid filter JSON")
raise SynapseError(400, "Invalid filter JSON", errcode=Codes.NOT_JSON)
self.filtering.check_valid_filter(filter_object)
set_timeline_upper_limit(
filter_object, self.hs.config.server.filter_timeline_limit
)
filter_collection = FilterCollection(self.hs, filter_object)
else:
try:
Expand Down