searxng/searx/botdetection/http_accept_language.py
Markus Heiser 66fdec0eb9 [mod] limiter: add config file /etc/searxng/limiter.toml
Signed-off-by: Markus Heiser <markus.heiser@darmarit.de>
2023-06-01 14:38:53 +02:00

26 lines
712 B
Python

# SPDX-License-Identifier: AGPL-3.0-or-later
# lint: pylint
"""
Method ``http_accept_language``
-------------------------------
The ``http_accept_language`` method evaluates a request as the request of a bot
if the Accept-Language_ header is unset.
.. _Accept-Language:
https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/User-Agent
"""
# pylint: disable=unused-argument
from typing import Optional, Tuple
import flask
from searx.tools import config
def filter_request(request: flask.Request, cfg: config.Config) -> Optional[Tuple[int, str]]:
if request.headers.get('Accept-Language', '').strip() == '':
return 429, "bot detected, missing HTTP header Accept-Language"
return None