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LibreTranslate/app/flood.py
2021-12-06 22:15:16 +01:00

58 lines
1.2 KiB
Python

import atexit
from apscheduler.schedulers.background import BackgroundScheduler
banned = {}
active = False
threshold = -1
def forgive_banned():
global banned
global threshold
clear_list = []
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:
del banned[ip]
def setup(violations_threshold=100):
global active
global threshold
active = True
threshold = violations_threshold
scheduler = BackgroundScheduler()
scheduler.add_job(func=forgive_banned, trigger="interval", minutes=480)
scheduler.start()
# Shut down the scheduler when exiting the app
atexit.register(lambda: scheduler.shutdown())
def report(request_ip):
if active:
banned[request_ip] = banned.get(request_ip, 0)
banned[request_ip] += 1
def decrease(request_ip):
if banned[request_ip] > 0:
banned[request_ip] -= 1
def has_violation(request_ip):
return request_ip in banned and banned[request_ip] > 0
def is_banned(request_ip):
# More than X offences?
return active and banned.get(request_ip, 0) >= threshold