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[enh] Add multiple outgoing proxies 

credits go to @bauruine see https://github.com/searx/searx/pull/1958
This commit is contained in:
Alexandre Flament 2020-11-16 12:44:07 +01:00
parent 2fc3b17c85
commit 3786920df9
7 changed files with 172 additions and 36 deletions
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42
docs/admin/settings.rst
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@ -36,14 +36,22 @@ Global Settings
image_proxy : False # proxying image results through searx
default_locale : "" # default interface locale
# uncomment below section if you want to use a proxy
outgoing: # communication with search engines
request_timeout : 2.0 # default timeout in seconds, can be override by engine
# max_request_timeout: 10.0 # the maximum timeout in seconds
useragent_suffix : "" # suffix of searx_useragent, could contain informations like an email address to the administrator
pool_connections : 100 # Number of different hosts
pool_maxsize : 10 # Number of simultaneous requests by host
#outgoing_proxies :
# http : http://127.0.0.1:8080
# https: http://127.0.0.1:8080
# uncomment below section only if you have more than one network interface
# which can be the source of outgoing search requests
#proxies:
# http:
# - http://proxy1:8080
# - http://proxy2:8080
# https:
# - http://proxy1:8080
# - http://proxy2:8080
# - socks5://user:password@proxy3:1080
# - socks5h://user:password@proxy4:1080
#source_ips:
# - 1.1.1.1
@ -105,15 +113,16 @@ Global Settings
code, like ``fr``, ``en``, ``de``.
.. _requests proxies: http://requests.readthedocs.io/en/latest/user/advanced/#proxies
.. _PR SOCKS support: https://github.com/kennethreitz/requests/pull/478
.. _PySocks: https://pypi.org/project/PySocks/
``outgoing_proxies`` :
Define a proxy you wish to use, see `requests proxies`_. SOCKS proxies are
not supported / see `PR SOCKS support`.
``proxies`` :
Define one or more proxies you wish to use, see `requests proxies`_.
If there are more than one proxy for one protocol (http, https),
requests to the engines are distributed in a round-robin fashion.
``source_ips`` :
If you use multiple network interfaces, define from which IP the requests must
be made.
be made. This parameter is ignored when ``proxies`` is set.
``locales`` :
Locales codes and their names. Available translations of searx interface.
@ -139,6 +148,15 @@ Engine settings
api_key : 'apikey'
disabled : True
language : en_US
#proxies:
# http:
# - http://proxy1:8080
# - http://proxy2:8080
# https:
# - http://proxy1:8080
# - http://proxy2:8080
# - socks5://user:password@proxy3:1080
# - socks5h://user:password@proxy4:1080
``name`` :
Name that will be used across searx to define this engine. In settings, on

18
searx/engines/__init__.py
View File

@ -25,7 +25,7 @@ from operator import itemgetter
from searx import settings
from searx import logger
from searx.data import ENGINES_LANGUAGES
from searx.poolrequests import get
from searx.poolrequests import get, get_proxy_cycles
from searx.utils import load_module, match_language, get_engine_from_settings
@ -79,16 +79,18 @@ def load_engine(engine_data):
logger.exception('Cannot load engine "{}"'.format(engine_module))
return None
for param_name in engine_data:
for param_name, param_value in engine_data.items():
if param_name == 'engine':
continue
if param_name == 'categories':
if engine_data['categories'] == 'none':
pass
elif param_name == 'categories':
if param_value == 'none':
engine.categories = []
else:
engine.categories = list(map(str.strip, engine_data['categories'].split(',')))
continue
setattr(engine, param_name, engine_data[param_name])
engine.categories = list(map(str.strip, param_value.split(',')))
elif param_name == 'proxies':
engine.proxies = get_proxy_cycles(param_value)
else:
setattr(engine, param_name, param_value)
for arg_name, arg_value in engine_default_args.items():
if not hasattr(engine, arg_name):

30
searx/poolrequests.py
View File

@ -111,6 +111,32 @@ def get_time_for_thread():
return threadLocal.total_time
def get_proxy_cycles(proxy_settings):
if not proxy_settings:
return None
# Backwards compatibility for single proxy in settings.yml
for protocol, proxy in proxy_settings.items():
if isinstance(proxy, str):
proxy_settings[protocol] = [proxy]
for protocol in proxy_settings:
proxy_settings[protocol] = cycle(proxy_settings[protocol])
return proxy_settings
GLOBAL_PROXY_CYCLES = get_proxy_cycles(settings['outgoing'].get('proxies'))
def get_proxies(proxy_cycles):
if proxy_cycles:
return {protocol: next(proxy_cycle) for protocol, proxy_cycle in proxy_cycles.items()}
return None
def get_global_proxies():
return get_proxies(GLOBAL_PROXY_CYCLES)
def request(method, url, **kwargs):
"""same as requests/requests/api.py request(...)"""
time_before_request = time()
@ -119,8 +145,8 @@ def request(method, url, **kwargs):
session = SessionSinglePool()
# proxies
if kwargs.get('proxies') is None:
kwargs['proxies'] = settings['outgoing'].get('proxies')
if not kwargs.get('proxies'):
kwargs['proxies'] = get_global_proxies()
# timeout
if 'timeout' in kwargs:

2
searx/search.py
View File

@ -119,7 +119,7 @@ def send_http_request(engine, request_params):
# setting engine based proxies
if hasattr(engine, 'proxies'):
request_args['proxies'] = engine.proxies
request_args['proxies'] = requests_lib.get_proxies(engine.proxies)
# specific type of request (GET or POST)
if request_params['method'] == 'GET':

16
searx/settings.yml
View File

@ -63,13 +63,15 @@ outgoing: # communication with search engines
pool_connections : 100 # Number of different hosts
pool_maxsize : 10 # Number of simultaneous requests by host
# uncomment below section if you want to use a proxy
# see http://docs.python-requests.org/en/latest/user/advanced/#proxies
# SOCKS proxies are also supported: see http://requests.readthedocs.io/en/master/user/advanced/#socks
# proxies :
# http : socks5h://127.0.0.1:9050
# https: socks5h://127.0.0.1:9050
# using_tor_proxy : True
# extra_proxy_timeout : 10.0 # Extra seconds to add in order to account for the time taken by the proxy
# see https://2.python-requests.org/en/latest/user/advanced/#proxies
# SOCKS proxies are also supported: see https://2.python-requests.org/en/latest/user/advanced/#socks
# proxies:
# http:
# - http://proxy1:8080
# - http://proxy2:8080
# https:
# - http://proxy1:8080
# - http://proxy2:8080
# uncomment below section only if you have more than one network interface
# which can be the source of outgoing search requests
# source_ips:

5
searx/webapp.py
View File

@ -78,6 +78,7 @@ from searx.plugins import plugins
from searx.plugins.oa_doi_rewrite import get_doi_resolver
from searx.preferences import Preferences, ValidationException, LANGUAGE_CODES
from searx.answerers import answerers
from searx.poolrequests import get_global_proxies
# serve pages with HTTP/1.1
@ -149,8 +150,6 @@ _category_names = (gettext('files'),
gettext('onions'),
gettext('science'))
outgoing_proxies = settings['outgoing'].get('proxies') or None
_flask_babel_get_translations = flask_babel.get_translations
@ -905,7 +904,7 @@ def image_proxy():
stream=True,
timeout=settings['outgoing']['request_timeout'],
headers=headers,
proxies=outgoing_proxies)
proxies=get_global_proxies())
if resp.status_code == 304:
return '', resp.status_code

89
tests/unit/test_poolrequests.py Normal file
View File

@ -0,0 +1,89 @@
from unittest.mock import patch
from requests.models import Response
from searx.testing import SearxTestCase
import searx.poolrequests
from searx.poolrequests import get_proxy_cycles, get_proxies
CONFIG = {'http': ['http://localhost:9090', 'http://localhost:9092'],
'https': ['http://localhost:9091', 'http://localhost:9093']}
class TestProxy(SearxTestCase):
def test_noconfig(self):
cycles = get_proxy_cycles(None)
self.assertIsNone(cycles)
cycles = get_proxy_cycles(False)
self.assertIsNone(cycles)
def test_oldconfig(self):
config = {
'http': 'http://localhost:9090',
'https': 'http://localhost:9091',
}
cycles = get_proxy_cycles(config)
self.assertEqual(next(cycles['http']), 'http://localhost:9090')
self.assertEqual(next(cycles['http']), 'http://localhost:9090')
self.assertEqual(next(cycles['https']), 'http://localhost:9091')
self.assertEqual(next(cycles['https']), 'http://localhost:9091')
def test_one_proxy(self):
config = {
'http': ['http://localhost:9090'],
'https': ['http://localhost:9091'],
}
cycles = get_proxy_cycles(config)
self.assertEqual(next(cycles['http']), 'http://localhost:9090')
self.assertEqual(next(cycles['http']), 'http://localhost:9090')
self.assertEqual(next(cycles['https']), 'http://localhost:9091')
self.assertEqual(next(cycles['https']), 'http://localhost:9091')
def test_multiple_proxies(self):
cycles = get_proxy_cycles(CONFIG)
self.assertEqual(next(cycles['http']), 'http://localhost:9090')
self.assertEqual(next(cycles['http']), 'http://localhost:9092')
self.assertEqual(next(cycles['http']), 'http://localhost:9090')
self.assertEqual(next(cycles['https']), 'http://localhost:9091')
self.assertEqual(next(cycles['https']), 'http://localhost:9093')
self.assertEqual(next(cycles['https']), 'http://localhost:9091')
def test_getproxies_none(self):
self.assertIsNone(get_proxies(None))
def test_getproxies_config(self):
cycles = get_proxy_cycles(CONFIG)
self.assertEqual(get_proxies(cycles), {
'http': 'http://localhost:9090',
'https': 'http://localhost:9091'
})
self.assertEqual(get_proxies(cycles), {
'http': 'http://localhost:9092',
'https': 'http://localhost:9093'
})
@patch('searx.poolrequests.get_global_proxies')
def test_request(self, mock_get_global_proxies):
method = 'GET'
url = 'http://localhost'
custom_proxies = {
'https': 'http://localhost:1080'
}
global_proxies = {
'http': 'http://localhost:9092',
'https': 'http://localhost:9093'
}
mock_get_global_proxies.return_value = global_proxies
# check the global proxies usage
with patch.object(searx.poolrequests.SessionSinglePool, 'request', return_value=Response()) as mock_method:
searx.poolrequests.request(method, url)
mock_method.assert_called_once_with(method=method, url=url, proxies=global_proxies)
# check if the proxies parameter overrides the global proxies
with patch.object(searx.poolrequests.SessionSinglePool, 'request', return_value=Response()) as mock_method:
searx.poolrequests.request(method, url, proxies=custom_proxies)
mock_method.assert_called_once_with(method=method, url=url, proxies=custom_proxies)