bing.py (2955B)
- """
- Bing (Web)
- @website https://www.bing.com
- @provide-api yes (http://datamarket.azure.com/dataset/bing/search),
- max. 5000 query/month
- @using-api no (because of query limit)
- @results HTML (using search portal)
- @stable no (HTML can change)
- @parse url, title, content
- @todo publishedDate
- """
- from lxml import html
- from searx.engines.xpath import extract_text
- from searx.url_utils import urlencode
- from searx.utils import match_language, gen_useragent
- # engine dependent config
- categories = ['general']
- paging = True
- language_support = True
- supported_languages_url = 'https://www.bing.com/account/general'
- language_aliases = {'zh-CN': 'zh-CHS', 'zh-TW': 'zh-CHT', 'zh-HK': 'zh-CHT'}
- # search-url
- base_url = 'https://www.bing.com/'
- search_string = 'search?{query}&first={offset}'
- # do search-request
- def request(query, params):
- offset = (params['pageno'] - 1) * 10 + 1
- lang = match_language(params['language'], supported_languages, language_aliases)
- query = u'language:{} {}'.format(lang.split('-')[0].upper(), query.decode('utf-8')).encode('utf-8')
- search_path = search_string.format(
- query=urlencode({'q': query}),
- offset=offset)
- params['url'] = base_url + search_path
- params['headers']['User-Agent'] = gen_useragent('Windows NT 6.3; WOW64')
- return params
- # get response from search-request
- def response(resp):
- results = []
- dom = html.fromstring(resp.text)
- try:
- results.append({'number_of_results': int(dom.xpath('//span[@class="sb_count"]/text()')[0]
- .split()[0].replace(',', ''))})
- except:
- pass
- # parse results
- for result in dom.xpath('//div[@class="sa_cc"]'):
- link = result.xpath('.//h3/a')[0]
- url = link.attrib.get('href')
- title = extract_text(link)
- content = extract_text(result.xpath('.//p'))
- # append result
- results.append({'url': url,
- 'title': title,
- 'content': content})
- # parse results again if nothing is found yet
- for result in dom.xpath('//li[@class="b_algo"]'):
- link = result.xpath('.//h2/a')[0]
- url = link.attrib.get('href')
- title = extract_text(link)
- content = extract_text(result.xpath('.//p'))
- # append result
- results.append({'url': url,
- 'title': title,
- 'content': content})
- # return results
- return results
- # get supported languages from their site
- def _fetch_supported_languages(resp):
- supported_languages = []
- dom = html.fromstring(resp.text)
- options = dom.xpath('//div[@id="limit-languages"]//input')
- for option in options:
- code = option.xpath('./@id')[0].replace('_', '-')
- if code == 'nb':
- code = 'no'
- supported_languages.append(code)
- return supported_languages