searxng/searx/engines/yahoo_news.py
Alexandre Flament ca93a01844 [mod] dynamically set language_support variable
The language_support variable is set to True by default,
and set to False in only 5 engines.

Except the documentation and the /config URL, this variable is not used.

This commit remove the variable definition in the engines, and
set value according to supported_languages length: False when the length is 0,
True otherwise.

Close #2485
2021-02-01 17:10:37 +01:00

112 lines
3.6 KiB
Python

# SPDX-License-Identifier: AGPL-3.0-or-later
"""
Yahoo (News)
"""
import re
from datetime import datetime, timedelta
from urllib.parse import urlencode
from lxml import html
from searx.engines.yahoo import parse_url, language_aliases
from searx.engines.yahoo import _fetch_supported_languages, supported_languages_url # NOQA # pylint: disable=unused-import
from dateutil import parser
from searx.utils import extract_text, extract_url, match_language
# about
about = {
"website": 'https://news.yahoo.com',
"wikidata_id": 'Q3044717',
"official_api_documentation": 'https://developer.yahoo.com/api/',
"use_official_api": False,
"require_api_key": False,
"results": 'HTML',
}
# engine dependent config
categories = ['news']
paging = True
# search-url
search_url = 'https://news.search.yahoo.com/search?{query}&b={offset}&{lang}=uh3_news_web_gs_1&pz=10&xargs=0&vl=lang_{lang}' # noqa
# specific xpath variables
results_xpath = '//ol[contains(@class,"searchCenterMiddle")]//li'
url_xpath = './/h3/a/@href'
title_xpath = './/h3/a'
content_xpath = './/div[@class="compText"]'
publishedDate_xpath = './/span[contains(@class,"tri")]'
suggestion_xpath = '//div[contains(@class,"VerALSOTRY")]//a'
# do search-request
def request(query, params):
offset = (params['pageno'] - 1) * 10 + 1
if params['language'] == 'all':
language = 'en'
else:
language = match_language(params['language'], supported_languages, language_aliases).split('-')[0]
params['url'] = search_url.format(offset=offset,
query=urlencode({'p': query}),
lang=language)
# TODO required?
params['cookies']['sB'] = '"v=1&vm=p&fl=1&vl=lang_{lang}&sh=1&pn=10&rw=new'\
.format(lang=language)
return params
def sanitize_url(url):
if ".yahoo.com/" in url:
return re.sub("\\;\\_ylt\\=.+$", "", url)
else:
return url
# get response from search-request
def response(resp):
results = []
dom = html.fromstring(resp.text)
# parse results
for result in dom.xpath(results_xpath):
urls = result.xpath(url_xpath)
if len(urls) != 1:
continue
url = sanitize_url(parse_url(extract_url(urls, search_url)))
title = extract_text(result.xpath(title_xpath)[0])
content = extract_text(result.xpath(content_xpath)[0])
# parse publishedDate
publishedDate = extract_text(result.xpath(publishedDate_xpath)[0])
# still useful ?
if re.match("^[0-9]+ minute(s|) ago$", publishedDate):
publishedDate = datetime.now() - timedelta(minutes=int(re.match(r'\d+', publishedDate).group()))
elif re.match("^[0-9]+ days? ago$", publishedDate):
publishedDate = datetime.now() - timedelta(days=int(re.match(r'\d+', publishedDate).group()))
elif re.match("^[0-9]+ hour(s|), [0-9]+ minute(s|) ago$", publishedDate):
timeNumbers = re.findall(r'\d+', publishedDate)
publishedDate = datetime.now()\
- timedelta(hours=int(timeNumbers[0]))\
- timedelta(minutes=int(timeNumbers[1]))
else:
try:
publishedDate = parser.parse(publishedDate)
except:
publishedDate = datetime.now()
if publishedDate.year == 1900:
publishedDate = publishedDate.replace(year=datetime.now().year)
# append result
results.append({'url': url,
'title': title,
'content': content,
'publishedDate': publishedDate})
# return results
return results