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## DuckDuckGo (Web)
#
# @website https://duckduckgo.com/
# @provide-api yes (https://duckduckgo.com/api), but not all results from search-site
#
# @using-api no
# @results HTML (using search portal)
# @stable no (HTML can change)
# @parse url, title, content
#
# @todo rewrite to api
# @todo language support
from urllib import urlencode
from lxml.html import fromstring
from searx.utils import html_to_text
# engine dependent config
categories = ['general']
paging = True
locale = 'us-en'
# search-url
url = 'https://duckduckgo.com/html?{query}&s={offset}'
# specific xpath variables
result_xpath = '//div[@class="results_links results_links_deep web-result"]' # noqa
url_xpath = './/a[@class="large"]/@href'
title_xpath = './/a[@class="large"]//text()'
content_xpath = './/div[@class="snippet"]//text()'
# do search-request
def request(query, params):
offset = (params['pageno'] - 1) * 30
params['url'] = url.format(
query=urlencode({'q': query, 'l': locale}),
offset=offset)
return params
# get response from search-request
def response(resp):
results = []
doc = fromstring(resp.text)
# parse results
for r in doc.xpath(result_xpath):
try:
res_url = r.xpath(url_xpath)[-1]
except:
continue
if not res_url:
continue
title = html_to_text(''.join(r.xpath(title_xpath)))
content = html_to_text(''.join(r.xpath(content_xpath)))
# append result
results.append({'title': title,
'content': content,
'url': res_url})
# return results
return results
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