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1ec325adcc
In order to be able to meet the outstanding requirements, the implementation is modularized and supplemented with documentation. This patch does not contain functional change, except it fixes issue #2455 ---- Aktivate limiter in the settings.yml and simulate a bot request by:: curl -H 'Accept-Language: de-DE,en-US;q=0.7,en;q=0.3' \ -H 'Accept: text/html' -H 'User-Agent: xyz' \ -H 'Accept-Encoding: gzip' \ 'http://127.0.0.1:8888/search?q=foo' In the LOG: DEBUG searx.botdetection.link_token : missing ping for this request: ..... Since ``BURST_MAX_SUSPICIOUS = 2`` you can repeat the query above two time before you get a "Too Many Requests" response. Closes: https://github.com/searxng/searxng/issues/2455 Signed-off-by: Markus Heiser <markus.heiser@darmarit.de>
43 lines
1.1 KiB
Python
43 lines
1.1 KiB
Python
# SPDX-License-Identifier: AGPL-3.0-or-later
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# lint: pylint
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# pyright: basic
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"""see :ref:`limiter src`"""
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import flask
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from searx import redisdb
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from searx.plugins import logger
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from searx.botdetection import limiter
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from searx.botdetection import dump_request
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name = "Request limiter"
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description = "Limit the number of request"
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default_on = False
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preference_section = 'service'
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logger = logger.getChild('limiter')
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def pre_request():
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"""See :ref:`flask.Flask.before_request`"""
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val = limiter.filter_request(flask.request)
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if val is not None:
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http_status, msg = val
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client_ip = flask.request.headers.get('X-Forwarded-For', '<unknown>')
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logger.error("BLOCK (IP %s): %s" % (client_ip, msg))
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return 'Too Many Requests', http_status
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logger.debug("OK: %s" % dump_request(flask.request))
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return None
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def init(app: flask.Flask, settings) -> bool:
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if not settings['server']['limiter']:
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return False
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if not redisdb.client():
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logger.error("The limiter requires Redis")
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return False
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app.before_request(pre_request)
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return True
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