[httpx] replace searx.poolrequests by searx.network

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)

1 files changed, 0 insertions, 66 deletions

diff --git a/searx/raise_for_httperror.py b/searx/raise_for_httperror.py
deleted file mode 100644
index bd12df9a9..000000000
--- a/searx/raise_for_httperror.py
+++ /dev/null
@@ -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()