3
0
mirror of https://github.com/jlu5/PyLink.git synced 2024-12-24 11:42:51 +01:00
PyLink/plugins/servprotect.py

38 lines
1.3 KiB
Python

# servprotect.py: Protects against KILL and nick collision floods
from expiringdict import ExpiringDict
from pylinkirc import utils
from pylinkirc.log import log
# TODO: make length and time configurable
savecache = ExpiringDict(max_len=5, max_age_seconds=10)
killcache = ExpiringDict(max_len=5, max_age_seconds=10)
def handle_kill(irc, numeric, command, args):
"""
Tracks kills against PyLink clients. If too many are received,
automatically disconnects from the network.
"""
if killcache.setdefault(irc.name, 1) >= 5:
log.error('(%s) servprotect: Too many kills received, aborting!', irc.name)
irc.disconnect()
log.debug('(%s) servprotect: Incrementing killcache by 1', irc.name)
killcache[irc.name] += 1
utils.add_hook(handle_kill, 'KILL')
def handle_save(irc, numeric, command, args):
"""
Tracks SAVEs (nick collision) against PyLink clients. If too many are received,
automatically disconnects from the network.
"""
if savecache.setdefault(irc.name, 0) >= 5:
log.error('(%s) servprotect: Too many nick collisions, aborting!', irc.name)
irc.disconnect()
log.debug('(%s) servprotect: Incrementing savecache by 1', irc.name)
savecache[irc.name] += 1
utils.add_hook(handle_save, 'SAVE')