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[httpx] replace searx.poolrequests by searx.network

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settings.yml:

* outgoing.networks:
   * can contains network definition
   * propertiers: enable_http, verify, http2, max_connections, max_keepalive_connections,
     keepalive_expiry, local_addresses, support_ipv4, support_ipv6, proxies, max_redirects, retries
   * retries: 0 by default, number of times searx retries to send the HTTP request (using different IP & proxy each time)
   * local_addresses can be "192.168.0.1/24" (it supports IPv6)
   * support_ipv4 & support_ipv6: both True by default
     see https://github.com/searx/searx/pull/1034
* each engine can define a "network" section:
   * either a full network description
   * either reference an existing network

* all HTTP requests of engine use the same HTTP configuration (it was not the case before, see proxy configuration in master)
This commit is contained in:
Alexandre Flament 2021-04-05 10:43:33 +02:00
parent eaa694fb7d
commit d14994dc73
31 changed files with 1036 additions and 677 deletions
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66
searx/raise_for_httperror.py
View file

@ -1,66 +0,0 @@
# SPDX-License-Identifier: AGPL-3.0-or-later
"""
Raise exception for an HTTP response is an error.
"""
from searx.exceptions import (SearxEngineCaptchaException, SearxEngineTooManyRequestsException,
SearxEngineAccessDeniedException)
def is_cloudflare_challenge(resp):
if resp.status_code in [429, 503]:
if ('__cf_chl_jschl_tk__=' in resp.text)\
or ('/cdn-cgi/challenge-platform/' in resp.text
and 'orchestrate/jsch/v1' in resp.text
and 'window._cf_chl_enter(' in resp.text):
return True
if resp.status_code == 403 and '__cf_chl_captcha_tk__=' in resp.text:
return True
return False
def is_cloudflare_firewall(resp):
return resp.status_code == 403 and '<span class="cf-error-code">1020</span>' in resp.text
def raise_for_cloudflare_captcha(resp):
if resp.headers.get('Server', '').startswith('cloudflare'):
if is_cloudflare_challenge(resp):
# https://support.cloudflare.com/hc/en-us/articles/200170136-Understanding-Cloudflare-Challenge-Passage-Captcha-
# suspend for 2 weeks
raise SearxEngineCaptchaException(message='Cloudflare CAPTCHA', suspended_time=3600 * 24 * 15)
if is_cloudflare_firewall(resp):
raise SearxEngineAccessDeniedException(message='Cloudflare Firewall', suspended_time=3600 * 24)
def raise_for_recaptcha(resp):
if resp.status_code == 503 \
and '"https://www.google.com/recaptcha/' in resp.text:
raise SearxEngineCaptchaException(message='ReCAPTCHA', suspended_time=3600 * 24 * 7)
def raise_for_captcha(resp):
raise_for_cloudflare_captcha(resp)
raise_for_recaptcha(resp)
def raise_for_httperror(resp):
"""Raise exception for an HTTP response is an error.
Args:
resp (requests.Response): Response to check
Raises:
requests.HTTPError: raise by resp.raise_for_status()
searx.exceptions.SearxEngineAccessDeniedException: raise when the HTTP status code is 402 or 403.
searx.exceptions.SearxEngineTooManyRequestsException: raise when the HTTP status code is 429.
searx.exceptions.SearxEngineCaptchaException: raise when if CATPCHA challenge is detected.
"""
if resp.status_code and resp.status_code >= 400:
raise_for_captcha(resp)
if resp.status_code in (402, 403):
raise SearxEngineAccessDeniedException(message='HTTP error ' + str(resp.status_code),
suspended_time=3600 * 24)
if resp.status_code == 429:
raise SearxEngineTooManyRequestsException()
resp.raise_for_status()