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# SPDX-License-Identifier: AGPL-3.0-or-later
# lint: pylint
"""This module implements functions needed for the autocompleter.
"""
# pylint: disable=use-dict-literal
from json import loads
from urllib.parse import urlencode
from lxml import etree
from httpx import HTTPError
from searx import settings
from searx.data import ENGINES_LANGUAGES
from searx.network import get as http_get
from searx.exceptions import SearxEngineResponseException
# a fetch_supported_languages() for XPath engines isn't available right now
# _brave = ENGINES_LANGUAGES['brave'].keys()
def get(*args, **kwargs):
if 'timeout' not in kwargs:
kwargs['timeout'] = settings['outgoing']['request_timeout']
kwargs['raise_for_httperror'] = True
return http_get(*args, **kwargs)
def brave(query, _lang):
# brave search autocompleter
url = 'https://search.brave.com/api/suggest?'
url += urlencode({'q': query})
country = 'all'
# if lang in _brave:
# country = lang
kwargs = {'cookies': {'country': country}}
resp = get(url, **kwargs)
results = []
if resp.ok:
data = resp.json()
for item in data[1]:
results.append(item)
return results
def dbpedia(query, _lang):
# dbpedia autocompleter, no HTTPS
autocomplete_url = 'https://lookup.dbpedia.org/api/search.asmx/KeywordSearch?'
response = get(autocomplete_url + urlencode(dict(QueryString=query)))
results = []
if response.ok:
dom = etree.fromstring(response.content)
results = dom.xpath('//Result/Label//text()')
return results
def duckduckgo(query, _lang):
# duckduckgo autocompleter
url = 'https://ac.duckduckgo.com/ac/?{0}&type=list'
resp = loads(get(url.format(urlencode(dict(q=query)))).text)
if len(resp) > 1:
return resp[1]
return []
def google(query, lang):
# google autocompleter
autocomplete_url = 'https://suggestqueries.google.com/complete/search?client=toolbar&'
response = get(autocomplete_url + urlencode(dict(hl=lang, q=query)))
results = []
if response.ok:
dom = etree.fromstring(response.text)
results = dom.xpath('//suggestion/@data')
return results
def seznam(query, _lang):
# seznam search autocompleter
url = 'https://suggest.seznam.cz/fulltext/cs?{query}'
resp = get(
url.format(
query=urlencode(
{'phrase': query, 'cursorPosition': len(query), 'format': 'json-2', 'highlight': '1', 'count': '6'}
)
)
)
if not resp.ok:
return []
data = resp.json()
return [
''.join([part.get('text', '') for part in item.get('text', [])])
for item in data.get('result', [])
if item.get('itemType', None) == 'ItemType.TEXT'
]
def startpage(query, lang):
# startpage autocompleter
lui = ENGINES_LANGUAGES['startpage'].get(lang, 'english')
url = 'https://startpage.com/suggestions?{query}'
resp = get(url.format(query=urlencode({'q': query, 'segment': 'startpage.udog', 'lui': lui})))
data = resp.json()
return [e['text'] for e in data.get('suggestions', []) if 'text' in e]
def swisscows(query, _lang):
# swisscows autocompleter
url = 'https://swisscows.ch/api/suggest?{query}&itemsCount=5'
resp = loads(get(url.format(query=urlencode({'query': query}))).text)
return resp
def qwant(query, lang):
# qwant autocompleter (additional parameter : lang=en_en&count=xxx )
url = 'https://api.qwant.com/api/suggest?{query}'
resp = get(url.format(query=urlencode({'q': query, 'lang': lang})))
results = []
if resp.ok:
data = loads(resp.text)
if data['status'] == 'success':
for item in data['data']['items']:
results.append(item['value'])
return results
def wikipedia(query, lang):
# wikipedia autocompleter
url = 'https://' + lang + '.wikipedia.org/w/api.php?action=opensearch&{0}&limit=10&namespace=0&format=json'
resp = loads(get(url.format(urlencode(dict(search=query)))).text)
if len(resp) > 1:
return resp[1]
return []
def yandex(query, _lang):
# yandex autocompleter
url = "https://suggest.yandex.com/suggest-ff.cgi?{0}"
resp = loads(get(url.format(urlencode(dict(part=query)))).text)
if len(resp) > 1:
return resp[1]
return []
backends = {
'dbpedia': dbpedia,
'duckduckgo': duckduckgo,
'google': google,
'seznam': seznam,
'startpage': startpage,
'swisscows': swisscows,
'qwant': qwant,
'wikipedia': wikipedia,
'brave': brave,
'yandex': yandex,
}
def search_autocomplete(backend_name, query, lang):
backend = backends.get(backend_name)
if backend is None:
return []
try:
return backend(query, lang)
except (HTTPError, SearxEngineResponseException):
return []
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