# SPDX-License-Identifier: AGPL-3.0-or-later
# lint: pylint
"""Bing-News: description see :py:obj:`searx.engines.bing`.
.. hint::
Bing News is *different* in some ways!
"""
# pylint: disable=invalid-name
from typing import TYPE_CHECKING
from urllib.parse import urlencode
from lxml import html
from searx.utils import eval_xpath, extract_text, eval_xpath_list, eval_xpath_getindex
from searx.enginelib.traits import EngineTraits
from searx.engines.bing import set_bing_cookies
if TYPE_CHECKING:
import logging
logger: logging.Logger
traits: EngineTraits
# about
about = {
"website": 'https://www.bing.com/news',
"wikidata_id": 'Q2878637',
"official_api_documentation": 'https://www.microsoft.com/en-us/bing/apis/bing-news-search-api',
"use_official_api": False,
"require_api_key": False,
"results": 'RSS',
}
# engine dependent config
categories = ['news']
paging = True
"""If go through the pages and there are actually no new results for another
page, then bing returns the results from the last page again."""
time_range_support = True
time_map = {
'day': 'interval="4"',
'week': 'interval="7"',
'month': 'interval="9"',
}
"""A string '4' means *last hour*. We use *last hour* for ``day`` here since the
difference of *last day* and *last week* in the result list is just marginally.
Bing does not have news range ``year`` / we use ``month`` instead."""
base_url = 'https://www.bing.com/news/infinitescrollajax'
"""Bing (News) search URL"""
[docs]
def request(query, params):
"""Assemble a Bing-News request."""
engine_region = traits.get_region(params['searxng_locale'], traits.all_locale) # type: ignore
engine_language = traits.get_language(params['searxng_locale'], 'en') # type: ignore
set_bing_cookies(params, engine_language, engine_region)
# build URL query
#
# example: https://www.bing.com/news/infinitescrollajax?q=london&first=1
page = int(params.get('pageno', 1)) - 1
query_params = {
'q': query,
'InfiniteScroll': 1,
# to simplify the page count lets use the default of 10 images per page
'first': page * 10 + 1,
'SFX': page,
'form': 'PTFTNR',
'setlang': engine_region.split('-')[0],
'cc': engine_region.split('-')[-1],
}
if params['time_range']:
query_params['qft'] = time_map.get(params['time_range'], 'interval="9"')
params['url'] = base_url + '?' + urlencode(query_params)
return params
[docs]
def response(resp):
"""Get response from Bing-Video"""
results = []
if not resp.ok or not resp.text:
return results
dom = html.fromstring(resp.text)
for newsitem in eval_xpath_list(dom, '//div[contains(@class, "newsitem")]'):
link = eval_xpath_getindex(newsitem, './/a[@class="title"]', 0, None)
if link is None:
continue
url = link.attrib.get('href')
title = extract_text(link)
content = extract_text(eval_xpath(newsitem, './/div[@class="snippet"]'))
metadata = []
source = eval_xpath_getindex(newsitem, './/div[contains(@class, "source")]', 0, None)
if source is not None:
for item in (
eval_xpath_getindex(source, './/span[@aria-label]/@aria-label', 0, None),
# eval_xpath_getindex(source, './/a', 0, None),
# eval_xpath_getindex(source, './div/span', 3, None),
link.attrib.get('data-author'),
):
if item is not None:
t = extract_text(item)
if t and t.strip():
metadata.append(t.strip())
metadata = ' | '.join(metadata)
thumbnail = None
imagelink = eval_xpath_getindex(newsitem, './/a[@class="imagelink"]//img', 0, None)
if imagelink is not None:
thumbnail = 'https://www.bing.com/' + imagelink.attrib.get('src')
results.append(
{
'url': url,
'title': title,
'content': content,
'img_src': thumbnail,
'metadata': metadata,
}
)
return results
[docs]
def fetch_traits(engine_traits: EngineTraits):
"""Fetch languages and regions from Bing-News."""
# pylint: disable=import-outside-toplevel
from searx.engines.bing import fetch_traits as _f
_f(engine_traits)
# fix market codes not known by bing news:
# In bing the market code 'zh-cn' exists, but there is no 'news' category in
# bing for this market. Alternatively we use the the market code from Honk
# Kong. Even if this is not correct, it is better than having no hits at
# all, or sending false queries to bing that could raise the suspicion of a
# bot.
# HINT: 'en-hk' is the region code it does not indicate the language en!!
engine_traits.regions['zh-CN'] = 'en-hk'
