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Iyas Altawil
384
searx/autocomplete.py
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384
searx/autocomplete.py
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# SPDX-License-Identifier: AGPL-3.0-or-later
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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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import html
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from urllib.parse import urlencode, quote_plus
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import lxml.etree
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import lxml.html
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from httpx import HTTPError
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from searx.extended_types import SXNG_Response
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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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from searx.utils import extr, gen_useragent
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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) -> SXNG_Response:
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update_kwargs(**kwargs)
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return http_get(*args, **kwargs)
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def post(*args, **kwargs) -> SXNG_Response:
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update_kwargs(**kwargs)
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return http_post(*args, **kwargs)
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def baidu(query, _lang):
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# baidu search autocompleter
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base_url = "https://www.baidu.com/sugrec?"
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response = get(base_url + urlencode({'ie': 'utf-8', 'json': 1, 'prod': 'pc', 'wd': query}))
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results = []
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if response.ok:
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data = response.json()
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if 'g' in data:
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for item in data['g']:
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results.append(item['q'])
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return results
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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 and 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 naver(query, _lang):
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# Naver search autocompleter
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url = f"https://ac.search.naver.com/nx/ac?{urlencode({'q': query, 'r_format': 'json', 'st': 0})}"
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response = get(url)
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results = []
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if response.ok:
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data = response.json()
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if data.get('items'):
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for item in data['items'][0]:
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results.append(item[0])
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return results
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def qihu360search(query, _lang):
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# 360Search search autocompleter
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url = f"https://sug.so.360.cn/suggest?{urlencode({'format': 'json', 'word': query})}"
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response = get(url)
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results = []
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if response.ok:
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data = response.json()
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if 'result' in data:
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for item in data['result']:
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results.append(item['word'])
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return results
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def quark(query, _lang):
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# Quark search autocompleter
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url = f"https://sugs.m.sm.cn/web?{urlencode({'q': query})}"
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response = get(url)
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results = []
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if response.ok:
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data = response.json()
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for item in data.get('r', []):
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results.append(item['w'])
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return results
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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 sogou(query, _lang):
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# Sogou search autocompleter
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base_url = "https://sor.html5.qq.com/api/getsug?"
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response = get(base_url + urlencode({'m': 'searxng', 'key': query}))
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if response.ok:
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raw_json = extr(response.text, "[", "]", default="")
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try:
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data = json.loads(f"[{raw_json}]]")
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return data[1]
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except json.JSONDecodeError:
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return []
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return []
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def startpage(query, sxng_locale):
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"""Autocomplete from Startpage's Firefox extension.
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Supports the languages specified in lang_map.
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"""
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lang_map = {
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'da': 'dansk',
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'de': 'deutsch',
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'en': 'english',
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'es': 'espanol',
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'fr': 'francais',
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'nb': 'norsk',
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'nl': 'nederlands',
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'pl': 'polski',
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'pt': 'portugues',
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'sv': 'svenska',
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}
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base_lang = sxng_locale.split('-')[0]
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lui = lang_map.get(base_lang, 'english')
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url_params = {
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'q': query,
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'format': 'opensearch',
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'segment': 'startpage.defaultffx',
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'lui': lui,
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}
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url = f'https://www.startpage.com/suggestions?{urlencode(url_params)}'
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# Needs user agent, returns a 204 otherwise
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h = {'User-Agent': gen_useragent()}
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resp = get(url, headers=h)
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if resp.ok:
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try:
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data = resp.json()
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if len(data) >= 2 and isinstance(data[1], list):
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return data[1]
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except json.JSONDecodeError:
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pass
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return []
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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 [html.unescape(suggestion['raw']) for suggestion in resp.json()]
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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') # type: ignore
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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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'360search': qihu360search,
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'baidu': baidu,
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'brave': brave,
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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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'naver': naver,
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'quark': quark,
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'qwant': qwant,
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'seznam': seznam,
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'sogou': sogou,
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'startpage': startpage,
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'stract': stract,
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'swisscows': swisscows,
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'wikipedia': wikipedia,
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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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