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Validate new m.room.power_levels events (#10232)

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Signed-off-by: Aaron Raimist <aaron@raim.ist>
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Aaron Raimist 2021-08-26 11:07:58 -05:00 • committed by GitHub
parent ad17fbd20e
commit 40f619eaa5
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5 changed files with 160 additions and 4 deletions
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synapse/events/utils.py
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@ -32,6 +32,9 @@ from . import EventBase
# the literal fields "foo\" and "bar" but will instead be treated as "foo\\.bar"
SPLIT_FIELD_REGEX = re.compile(r"(?<!\\)\.")
CANONICALJSON_MAX_INT = (2 ** 53) - 1
CANONICALJSON_MIN_INT = -CANONICALJSON_MAX_INT
def prune_event(event: EventBase) -> EventBase:
"""Returns a pruned version of the given event, which removes all keys we
@ -505,7 +508,7 @@ def validate_canonicaljson(value: Any):
* NaN, Infinity, -Infinity
"""
if isinstance(value, int):
if value <= -(2 ** 53) or 2 ** 53 <= value:
if value < CANONICALJSON_MIN_INT or CANONICALJSON_MAX_INT < value:
raise SynapseError(400, "JSON integer out of range", Codes.BAD_JSON)
elif isinstance(value, float):