mirror of
https://github.com/searxng/searxng.git
synced 2024-11-16 17:40:11 +01:00
264 lines
7.0 KiB
Python
264 lines
7.0 KiB
Python
# SPDX-License-Identifier: AGPL-3.0-or-later
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# lint: pylint
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"""This module implements functions needed for the autocompleter.
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"""
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# pylint: disable=use-dict-literal
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import json
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from urllib.parse import urlencode, quote_plus
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import lxml
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from httpx import HTTPError
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from searx import settings
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from searx.engines import (
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engines,
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google,
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)
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from searx.network import get as http_get, post as http_post
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from searx.exceptions import SearxEngineResponseException
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def update_kwargs(**kwargs):
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if 'timeout' not in kwargs:
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kwargs['timeout'] = settings['outgoing']['request_timeout']
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kwargs['raise_for_httperror'] = True
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def get(*args, **kwargs):
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update_kwargs(**kwargs)
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return http_get(*args, **kwargs)
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def post(*args, **kwargs):
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update_kwargs(**kwargs)
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return http_post(*args, **kwargs)
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def brave(query, _lang):
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# brave search autocompleter
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url = 'https://search.brave.com/api/suggest?'
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url += urlencode({'q': query})
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country = 'all'
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# if lang in _brave:
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# country = lang
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kwargs = {'cookies': {'country': country}}
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resp = get(url, **kwargs)
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results = []
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if resp.ok:
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data = resp.json()
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for item in data[1]:
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results.append(item)
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return results
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def dbpedia(query, _lang):
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# dbpedia autocompleter, no HTTPS
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autocomplete_url = 'https://lookup.dbpedia.org/api/search.asmx/KeywordSearch?'
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response = get(autocomplete_url + urlencode(dict(QueryString=query)))
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results = []
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if response.ok:
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dom = lxml.etree.fromstring(response.content)
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results = dom.xpath('//Result/Label//text()')
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return results
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def duckduckgo(query, sxng_locale):
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"""Autocomplete from DuckDuckGo. Supports DuckDuckGo's languages"""
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traits = engines['duckduckgo'].traits
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args = {
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'q': query,
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'kl': traits.get_region(sxng_locale, traits.all_locale),
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}
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url = 'https://duckduckgo.com/ac/?type=list&' + urlencode(args)
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resp = get(url)
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ret_val = []
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if resp.ok:
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j = resp.json()
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if len(j) > 1:
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ret_val = j[1]
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return ret_val
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def google_complete(query, sxng_locale):
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"""Autocomplete from Google. Supports Google's languages and subdomains
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(:py:obj:`searx.engines.google.get_google_info`) by using the async REST
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API::
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https://{subdomain}/complete/search?{args}
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"""
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google_info = google.get_google_info({'searxng_locale': sxng_locale}, engines['google'].traits)
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url = 'https://{subdomain}/complete/search?{args}'
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args = urlencode(
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{
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'q': query,
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'client': 'gws-wiz',
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'hl': google_info['params']['hl'],
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}
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)
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results = []
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resp = get(url.format(subdomain=google_info['subdomain'], args=args))
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if resp.ok:
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json_txt = resp.text[resp.text.find('[') : resp.text.find(']', -3) + 1]
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data = json.loads(json_txt)
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for item in data[0]:
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results.append(lxml.html.fromstring(item[0]).text_content())
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return results
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def mwmbl(query, _lang):
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"""Autocomplete from Mwmbl_."""
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# mwmbl autocompleter
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url = 'https://api.mwmbl.org/search/complete?{query}'
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results = get(url.format(query=urlencode({'q': query}))).json()[1]
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# results starting with `go:` are direct urls and not useful for auto completion
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return [result for result in results if not result.startswith("go: ") and not result.startswith("search: ")]
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def seznam(query, _lang):
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# seznam search autocompleter
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url = 'https://suggest.seznam.cz/fulltext/cs?{query}'
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resp = get(
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url.format(
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query=urlencode(
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{'phrase': query, 'cursorPosition': len(query), 'format': 'json-2', 'highlight': '1', 'count': '6'}
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)
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)
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)
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if not resp.ok:
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return []
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data = resp.json()
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return [
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''.join([part.get('text', '') for part in item.get('text', [])])
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for item in data.get('result', [])
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if item.get('itemType', None) == 'ItemType.TEXT'
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]
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def stract(query, _lang):
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# stract autocompleter (beta)
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url = f"https://stract.com/beta/api/autosuggest?q={quote_plus(query)}"
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resp = post(url)
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if not resp.ok:
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return []
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return [suggestion['raw'] for suggestion in resp.json()]
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def startpage(query, sxng_locale):
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"""Autocomplete from Startpage. Supports Startpage's languages"""
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lui = engines['startpage'].traits.get_language(sxng_locale, 'english')
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url = 'https://startpage.com/suggestions?{query}'
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resp = get(url.format(query=urlencode({'q': query, 'segment': 'startpage.udog', 'lui': lui})))
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data = resp.json()
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return [e['text'] for e in data.get('suggestions', []) if 'text' in e]
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def swisscows(query, _lang):
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# swisscows autocompleter
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url = 'https://swisscows.ch/api/suggest?{query}&itemsCount=5'
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resp = json.loads(get(url.format(query=urlencode({'query': query}))).text)
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return resp
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def qwant(query, sxng_locale):
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"""Autocomplete from Qwant. Supports Qwant's regions."""
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results = []
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locale = engines['qwant'].traits.get_region(sxng_locale, 'en_US')
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url = 'https://api.qwant.com/v3/suggest?{query}'
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resp = get(url.format(query=urlencode({'q': query, 'locale': locale, 'version': '2'})))
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if resp.ok:
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data = resp.json()
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if data['status'] == 'success':
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for item in data['data']['items']:
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results.append(item['value'])
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return results
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def wikipedia(query, sxng_locale):
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"""Autocomplete from Wikipedia. Supports Wikipedia's languages (aka netloc)."""
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results = []
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eng_traits = engines['wikipedia'].traits
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wiki_lang = eng_traits.get_language(sxng_locale, 'en')
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wiki_netloc = eng_traits.custom['wiki_netloc'].get(wiki_lang, 'en.wikipedia.org')
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url = 'https://{wiki_netloc}/w/api.php?{args}'
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args = urlencode(
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{
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'action': 'opensearch',
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'format': 'json',
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'formatversion': '2',
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'search': query,
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'namespace': '0',
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'limit': '10',
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}
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)
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resp = get(url.format(args=args, wiki_netloc=wiki_netloc))
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if resp.ok:
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data = resp.json()
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if len(data) > 1:
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results = data[1]
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return results
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def yandex(query, _lang):
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# yandex autocompleter
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url = "https://suggest.yandex.com/suggest-ff.cgi?{0}"
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resp = json.loads(get(url.format(urlencode(dict(part=query)))).text)
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if len(resp) > 1:
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return resp[1]
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return []
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backends = {
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'dbpedia': dbpedia,
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'duckduckgo': duckduckgo,
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'google': google_complete,
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'mwmbl': mwmbl,
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'seznam': seznam,
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'startpage': startpage,
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'stract': stract,
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'swisscows': swisscows,
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'qwant': qwant,
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'wikipedia': wikipedia,
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'brave': brave,
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'yandex': yandex,
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}
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def search_autocomplete(backend_name, query, sxng_locale):
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backend = backends.get(backend_name)
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if backend is None:
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return []
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try:
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return backend(query, sxng_locale)
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except (HTTPError, SearxEngineResponseException):
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return []
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