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LibreTranslate/libretranslate/flood.py
2023-03-09 22:00:27 -05:00

66 lines
1.6 KiB
Python

import atexit
from multiprocessing import Value
from libretranslate.storage import get_storage
from apscheduler.schedulers.background import BackgroundScheduler
setup_scheduler = Value('b', False)
active = False
threshold = -1
def forgive_banned():
global threshold
clear_list = []
s = get_storage()
banned = s.get_all_hash_int("banned")
for ip in banned:
if banned[ip] <= 0:
clear_list.append(ip)
else:
banned[ip] = min(threshold, banned[ip]) - 1
for ip in clear_list:
s.del_hash("banned", ip)
def setup(violations_threshold=100):
global active
global threshold
active = True
threshold = violations_threshold
# Only setup the scheduler and secrets on one process
if not setup_scheduler.value:
setup_scheduler.value = True
scheduler = BackgroundScheduler()
scheduler.add_job(func=forgive_banned, trigger="interval", minutes=30)
scheduler.start()
# Shut down the scheduler when exiting the app
atexit.register(lambda: scheduler.shutdown())
def report(request_ip):
if active:
get_storage().inc_hash_int("banned", request_ip)
def decrease(request_ip):
s = get_storage()
if s.get_hash_int("banned", request_ip) > 0:
s.dec_hash_int("banned", request_ip)
def has_violation(request_ip):
s = get_storage()
return s.get_hash_int("banned", request_ip) > 0
def is_banned(request_ip):
s = get_storage()
# More than X offences?
return active and s.get_hash_int("banned", request_ip) >= threshold