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Add ratelimiting on login (#4821)

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Add two ratelimiters on login (per-IP address and per-userID).
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Brendan Abolivier 2019-03-15 17:46:16 +00:00 • committed by GitHub
parent 3b7ceb2c69
commit 899e523d6d
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GPG key ID: 4AEE18F83AFDEB23
11 changed files with 259 additions and 37 deletions
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12
synapse/api/ratelimiting.py
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@ -14,6 +14,8 @@
import collections
from synapse.api.errors import LimitExceededError
class Ratelimiter(object):
"""
@ -82,3 +84,13 @@ class Ratelimiter(object):
break
else:
del self.message_counts[key]
def ratelimit(self, key, time_now_s, rate_hz, burst_count, update=True):
allowed, time_allowed = self.can_do_action(
key, time_now_s, rate_hz, burst_count, update
)
if not allowed:
raise LimitExceededError(
retry_after_ms=int(1000 * (time_allowed - time_now_s)),
)