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# SPDX-License-Identifier: AGPL-3.0-or-later
# lint: pylint
"""This module implements functions needed for the autocompleter.
"""
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 []
backends = {
'dbpedia': dbpedia,
'duckduckgo': duckduckgo,
'google': google,
'seznam': seznam,
'startpage': startpage,
'swisscows': swisscows,
'qwant': qwant,
'wikipedia': wikipedia,
'brave': brave,
}
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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