forked from Archives/searxng
You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
154 lines
4.6 KiB
Python
154 lines
4.6 KiB
Python
# SPDX-License-Identifier: AGPL-3.0-or-later
|
|
# lint: pylint
|
|
"""Bing (Web)
|
|
|
|
- https://github.com/searx/searx/issues/2019#issuecomment-648227442
|
|
"""
|
|
|
|
import re
|
|
from urllib.parse import urlencode, urlparse, parse_qs
|
|
from lxml import html
|
|
from searx.utils import eval_xpath, extract_text, match_language
|
|
|
|
about = {
|
|
"website": 'https://www.bing.com',
|
|
"wikidata_id": 'Q182496',
|
|
"official_api_documentation": 'https://www.microsoft.com/en-us/bing/apis/bing-web-search-api',
|
|
"use_official_api": False,
|
|
"require_api_key": False,
|
|
"results": 'HTML',
|
|
}
|
|
|
|
# engine dependent config
|
|
categories = ['general']
|
|
paging = True
|
|
time_range_support = False
|
|
safesearch = False
|
|
supported_languages_url = 'https://www.bing.com/account/general'
|
|
language_aliases = {}
|
|
|
|
# search-url
|
|
base_url = 'https://www.bing.com/'
|
|
|
|
# initial query: https://www.bing.com/search?q=foo&search=&form=QBLH
|
|
inital_query = 'search?{query}&search=&form=QBLH'
|
|
|
|
# following queries: https://www.bing.com/search?q=foo&search=&first=11&FORM=PERE
|
|
page_query = 'search?{query}&search=&first={offset}&FORM=PERE'
|
|
|
|
|
|
def _get_offset_from_pageno(pageno):
|
|
return (pageno - 1) * 10 + 1
|
|
|
|
|
|
def request(query, params):
|
|
|
|
offset = _get_offset_from_pageno(params.get('pageno', 1))
|
|
|
|
# logger.debug("params['pageno'] --> %s", params.get('pageno'))
|
|
# logger.debug(" offset --> %s", offset)
|
|
|
|
search_string = page_query
|
|
if offset == 1:
|
|
search_string = inital_query
|
|
|
|
if params['language'] == 'all':
|
|
lang = 'EN'
|
|
else:
|
|
lang = match_language(params['language'], supported_languages, language_aliases)
|
|
|
|
query = 'language:{} {}'.format(lang.split('-')[0].upper(), query)
|
|
|
|
search_path = search_string.format(query=urlencode({'q': query}), offset=offset)
|
|
|
|
if offset > 1:
|
|
referer = base_url + inital_query.format(query=urlencode({'q': query}))
|
|
params['headers']['Referer'] = referer
|
|
logger.debug("headers.Referer --> %s", referer)
|
|
|
|
params['url'] = base_url + search_path
|
|
params['headers']['Accept-Language'] = "en-US,en;q=0.5"
|
|
params['headers']['Accept'] = 'text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8'
|
|
return params
|
|
|
|
|
|
def response(resp):
|
|
|
|
results = []
|
|
result_len = 0
|
|
|
|
dom = html.fromstring(resp.text)
|
|
|
|
for result in eval_xpath(dom, '//div[@class="sa_cc"]'):
|
|
|
|
# IMO //div[@class="sa_cc"] does no longer match
|
|
logger.debug('found //div[@class="sa_cc"] --> %s', result)
|
|
|
|
link = eval_xpath(result, './/h3/a')[0]
|
|
url = link.attrib.get('href')
|
|
title = extract_text(link)
|
|
content = extract_text(eval_xpath(result, './/p'))
|
|
|
|
# append result
|
|
results.append({'url': url, 'title': title, 'content': content})
|
|
|
|
# parse results again if nothing is found yet
|
|
for result in eval_xpath(dom, '//li[@class="b_algo"]'):
|
|
|
|
link = eval_xpath(result, './/h2/a')[0]
|
|
url = link.attrib.get('href')
|
|
title = extract_text(link)
|
|
content = extract_text(eval_xpath(result, './/p'))
|
|
|
|
# append result
|
|
results.append({'url': url, 'title': title, 'content': content})
|
|
|
|
try:
|
|
result_len_container = "".join(eval_xpath(dom, '//span[@class="sb_count"]//text()'))
|
|
if "-" in result_len_container:
|
|
|
|
# Remove the part "from-to" for paginated request ...
|
|
result_len_container = result_len_container[result_len_container.find("-") * 2 + 2 :]
|
|
|
|
result_len_container = re.sub('[^0-9]', '', result_len_container)
|
|
|
|
if len(result_len_container) > 0:
|
|
result_len = int(result_len_container)
|
|
|
|
except Exception as e: # pylint: disable=broad-except
|
|
logger.debug('result error :\n%s', e)
|
|
|
|
if result_len and _get_offset_from_pageno(resp.search_params.get("pageno", 0)) > result_len:
|
|
return []
|
|
|
|
results.append({'number_of_results': result_len})
|
|
return results
|
|
|
|
|
|
# get supported languages from their site
|
|
def _fetch_supported_languages(resp):
|
|
|
|
lang_tags = set()
|
|
|
|
dom = html.fromstring(resp.text)
|
|
lang_links = eval_xpath(dom, '//div[@id="language-section"]//li')
|
|
|
|
for _li in lang_links:
|
|
|
|
href = eval_xpath(_li, './/@href')[0]
|
|
(_scheme, _netloc, _path, _params, query, _fragment) = urlparse(href)
|
|
query = parse_qs(query, keep_blank_values=True)
|
|
|
|
# fmt: off
|
|
setlang = query.get('setlang', [None, ])[0]
|
|
# example: 'mn-Cyrl-MN' --> '['mn', 'Cyrl-MN']
|
|
lang, nation = (setlang.split('-', maxsplit=1) + [None,])[:2] # fmt: skip
|
|
# fmt: on
|
|
|
|
if not nation:
|
|
nation = lang.upper()
|
|
tag = lang + '-' + nation
|
|
lang_tags.add(tag)
|
|
|
|
return list(lang_tags)
|