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[feat] engine: implementation of mullvad leta
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searx/engines/mullvad_leta.py
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166
searx/engines/mullvad_leta.py
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# SPDX-License-Identifier: AGPL-3.0-or-later
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# lint: pylint
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"""This is the implementation of the Mullvad-Leta meta-search engine
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This engine _REQUIRES_ that searxng operate within a Mullvad VPN
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If using docker, consider using gluetun for easily connecting to the Mullvad
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- https://github.com/qdm12/gluetun
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Otherwise, follow instructions provided by Mullvad for enabling the VPN on Linux
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- https://mullvad.net/en/help/install-mullvad-app-linux
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"""
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from typing import TYPE_CHECKING
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from httpx import Response
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from lxml import html
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from searx.enginelib.traits import EngineTraits
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from searx.locales import region_tag, get_official_locales
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from searx.utils import eval_xpath, extract_text, eval_xpath_list
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from searx.exceptions import SearxEngineResponseException
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if TYPE_CHECKING:
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import logging
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logger = logging.getLogger()
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traits: EngineTraits
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use_cache: bool = True # non-cache use only has 100 searches per day!
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search_url = "https://leta.mullvad.net"
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# about
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about = {
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"website": search_url,
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"wikidata_id": 'Q47008412', # the Mullvad id - not leta, but related
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"official_api_documentation": 'https://leta.mullvad.net/faq',
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"use_official_api": False,
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"require_api_key": False,
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"results": 'HTML',
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}
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# engine dependent config
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categories = ['general', 'web']
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paging = True
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max_page = 50
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time_range_support = True
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time_range_dict = {
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"day": "d1",
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"week": "w1",
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"month": "m1",
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"year": "y1",
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}
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def is_vpn_connected(dom: html.HtmlElement) -> bool:
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"""Returns true if the VPN is connected, False otherwise"""
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connected_text = extract_text(eval_xpath(dom, '//main/div/p[1]'))
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return connected_text != 'You are not connected to Mullvad VPN.'
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def assign_headers(headers: dict) -> dict:
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"""Assigns the headers to make a request to Mullvad Leta"""
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headers['Accept'] = "text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,*/*;q=0.8"
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headers['Content-Type'] = "application/x-www-form-urlencoded"
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headers['Host'] = "leta.mullvad.net"
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headers['Origin'] = "https://leta.mullvad.net"
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return headers
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def request(query: str, params: dict):
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country = traits.get_region(params.get('searxng_locale', 'all'), traits.all_locale) # type: ignore
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params['url'] = search_url
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params['method'] = 'POST'
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params['data'] = {
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"q": query,
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"gl": country if country is str else '',
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}
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# pylint: disable=undefined-variable
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if use_cache:
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params['data']['oc'] = "on"
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# pylint: enable=undefined-variable
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if params['time_range'] in time_range_dict:
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params['dateRestrict'] = time_range_dict[params['time_range']]
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else:
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params['dateRestrict'] = ''
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if params['pageno'] > 1:
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# Page 1 is n/a, Page 2 is 11, page 3 is 21, ...
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params['data']['start'] = ''.join([str(params['pageno'] - 1), "1"])
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if params['headers'] is None:
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params['headers'] = {}
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assign_headers(params['headers'])
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return params
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def extract_result(dom_result: html.HtmlElement):
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[a_elem, h3_elem, p_elem] = eval_xpath_list(dom_result, 'div/div/*')
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return {
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'url': extract_text(a_elem.text),
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'title': extract_text(h3_elem),
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'content': extract_text(p_elem),
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}
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def response(resp: Response):
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"""Checks if connected to Mullvad VPN, then extracts the search results from
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the DOM resp: requests response object"""
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dom = html.fromstring(resp.text)
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if not is_vpn_connected(dom):
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raise SearxEngineResponseException('Not connected to Mullvad VPN')
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search_results = eval_xpath(dom.body, '//main/div[2]/div')
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return [extract_result(sr) for sr in search_results]
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def fetch_traits(engine_traits: EngineTraits):
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"""Fetch languages and regions from Mullvad-Leta
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WARNING
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Fetching the engine traits also requires a Mullvad VPN connection. If
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not connected, then an error message will print and no traits will be
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updated.
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"""
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# pylint: disable=import-outside-toplevel
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# see https://github.com/searxng/searxng/issues/762
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from searx.network import post as http_post
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# pylint: enable=import-outside-toplevel
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resp = http_post(search_url, headers=assign_headers({}))
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if not isinstance(resp, Response):
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print("ERROR: failed to get response from mullvad-leta. Are you connected to the VPN?")
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return
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if not resp.ok:
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print("ERROR: response from mullvad-leta is not OK. Are you connected to the VPN?")
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return
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dom = html.fromstring(resp.text)
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if not is_vpn_connected(dom):
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print('ERROR: Not connected to Mullvad VPN')
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return
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# supported region codes
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options = eval_xpath_list(dom.body, '//main/div/form/div[2]/div/select[1]/option')
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if options is None or len(options) <= 0:
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print('ERROR: could not find any results. Are you connected to the VPN?')
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for x in options:
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eng_country = x.get("value")
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sxng_locales = get_official_locales(eng_country, engine_traits.languages.keys(), regional=True)
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if not sxng_locales:
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print(
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"ERROR: can't map from Mullvad-Leta country %s (%s) to a babel region."
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% (x.get('data-name'), eng_country)
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)
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continue
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for sxng_locale in sxng_locales:
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engine_traits.regions[region_tag(sxng_locale)] = eng_country
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@ -1217,6 +1217,13 @@ engines:
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require_api_key: false
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results: JSON
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# - name: mullvadleta
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# engine: mullvad_leta
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# use_cache: true # Only 100 non-cache searches per day, suggested only for private instances
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# search_url: https://leta.mullvad.net
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# categories: [general, web]
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# shortcut: ml
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- name: odysee
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engine: odysee
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shortcut: od
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