searxng/searx/plugins/limiter.py
Emilien Devos 47721a3485 add new parameter called server.public_instance
for enabling by default advanced limiter functions
in the future allow us to add features just for the public instances
2023-09-25 22:31:14 +02:00

39 lines
1 KiB
Python

# SPDX-License-Identifier: AGPL-3.0-or-later
# lint: pylint
# pyright: basic
"""see :ref:`limiter src`"""
import sys
import flask
from searx import redisdb
from searx.plugins import logger
from searx.botdetection import limiter
name = "Request limiter"
description = "Limit the number of request"
default_on = False
preference_section = 'service'
logger = logger.getChild('limiter')
def pre_request():
"""See :ref:`flask.Flask.before_request`"""
return limiter.filter_request(flask.request)
def init(app: flask.Flask, settings) -> bool:
if not settings['server']['limiter'] and not settings['server']['public_instance']:
return False
if not redisdb.client():
logger.error(
"The limiter requires Redis, please consult the documentation: "
+ "https://docs.searxng.org/admin/searx.botdetection.html#limiter"
)
if settings['server']['public_instance']:
sys.exit(1)
return False
app.before_request(pre_request)
return True