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Apply some limits to depth to counter abuse

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* When creating a new event, cap its depth to 2^63 - 1
* When receiving events, reject any without a sensible depth

As per https://docs.google.com/document/d/1I3fi2S-XnpO45qrpCsowZv8P8dHcNZ4fsBsbOW7KABI
This commit is contained in:
Richard van der Hoff 2018-05-01 16:19:39 +01:00
parent 28dd536e80
commit 33f469ba19
3 changed files with 26 additions and 4 deletions
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3
synapse/api/constants.py
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@ -16,6 +16,9 @@
"""Contains constants from the specification."""
# the "depth" field on events is limited to 2**63 - 1
MAX_DEPTH = 2**63 - 1
class Membership(object):