mirror of
https://github.com/searxng/searxng.git
synced 2024-11-13 21:51:08 +00:00
281e36f4b7
Closes: https://github.com/searxng/searxng/issues/2477 Signed-off-by: Markus Heiser <markus.heiser@darmarit.de>
41 lines
1.1 KiB
Python
41 lines
1.1 KiB
Python
# SPDX-License-Identifier: AGPL-3.0-or-later
|
|
# lint: pylint
|
|
"""
|
|
Method ``http_accept_encoding``
|
|
-------------------------------
|
|
|
|
The ``http_accept_encoding`` method evaluates a request as the request of a
|
|
bot if the Accept-Encoding_ header ..
|
|
|
|
- did not contain ``gzip`` AND ``deflate`` (if both values are missed)
|
|
- did not contain ``text/html``
|
|
|
|
.. _Accept-Encoding:
|
|
https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Accept-Encoding
|
|
|
|
"""
|
|
# pylint: disable=unused-argument
|
|
|
|
from __future__ import annotations
|
|
from ipaddress import (
|
|
IPv4Network,
|
|
IPv6Network,
|
|
)
|
|
|
|
import flask
|
|
import werkzeug
|
|
|
|
from searx.tools import config
|
|
from ._helpers import too_many_requests
|
|
|
|
|
|
def filter_request(
|
|
network: IPv4Network | IPv6Network,
|
|
request: flask.Request,
|
|
cfg: config.Config,
|
|
) -> werkzeug.Response | None:
|
|
|
|
accept_list = [l.strip() for l in request.headers.get('Accept-Encoding', '').split(',')]
|
|
if not ('gzip' in accept_list or 'deflate' in accept_list):
|
|
return too_many_requests(network, "HTTP header Accept-Encoding did not contain gzip nor deflate")
|
|
return None
|