searxng/searx/engines/bing.py
2014-09-01 14:38:59 +02:00

81 lines
2.2 KiB
Python

## 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 urllib import urlencode
from cgi import escape
from lxml import html
# engine dependent config
categories = ['general']
paging = True
language_support = True
# 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
if params['language'] == 'all':
language = 'en-US'
else:
language = params['language'].replace('_', '-')
search_path = search_string.format(
query=urlencode({'q': query, 'setmkt': language}),
offset=offset)
params['cookies']['SRCHHPGUSR'] = \
'NEWWND=0&NRSLT=-1&SRCHLANG=' + language.split('-')[0]
params['url'] = base_url + search_path
return params
# get response from search-request
def response(resp):
results = []
dom = html.fromstring(resp.content)
# parse results
for result in dom.xpath('//div[@class="sa_cc"]'):
link = result.xpath('.//h3/a')[0]
url = link.attrib.get('href')
title = ' '.join(link.xpath('.//text()'))
content = escape(' '.join(result.xpath('.//p//text()')))
# append result
results.append({'url': url,
'title': title,
'content': content})
# return results if something is found
if results:
return results
# 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 = ' '.join(link.xpath('.//text()'))
content = escape(' '.join(result.xpath('.//p//text()')))
# append result
results.append({'url': url,
'title': title,
'content': content})
# return results
return results