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searxng/searx/engines/bing.py
2016-06-28 00:06:50 +02:00

89 lines
2.3 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
from searx.engines.xpath import extract_text
# 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.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 = escape(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 = escape(extract_text(result.xpath('.//p')))
# append result
results.append({'url': url,
'title': title,
'content': content})
# return results
return results