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https://github.com/searxng/searxng
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[mod] bing_news: use async API & upgrade to data_type: traits_v1
Signed-off-by: Markus Heiser <markus.heiser@darmarit.de>
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Markus Heiser
parent
ff80e7637e
commit
15eaf0f15f
@ -1,20 +1,30 @@
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# SPDX-License-Identifier: AGPL-3.0-or-later
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# lint: pylint
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"""Bing (News)
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"""Bing-News: description see :py:obj:`searx.engines.bing`.
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"""
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from urllib.parse import (
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urlencode,
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urlparse,
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parse_qsl,
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quote,
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)
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from datetime import datetime
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from dateutil import parser
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from lxml import etree
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from lxml.etree import XPath
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from searx.utils import match_language, eval_xpath_getindex
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# pylint: disable=invalid-name
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from typing import TYPE_CHECKING
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import uuid
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from urllib.parse import urlencode
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from lxml import html
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from searx.enginelib.traits import EngineTraits
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from searx.engines.bing import (
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set_bing_cookies,
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_fetch_traits,
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)
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from searx.engines.bing import send_accept_language_header # pylint: disable=unused-import
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if TYPE_CHECKING:
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import logging
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logger: logging.Logger
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traits: EngineTraits
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# about
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about = {
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@ -30,126 +40,111 @@ about = {
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categories = ['news']
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paging = True
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time_range_support = True
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send_accept_language_header = True
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time_map = {
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'day': '4',
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'week': '8',
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'month': '9',
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}
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"""A string '4' means *last hour*. We use *last hour* for ``day`` here since the
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difference of *last day* and *last week* in the result list is just marginally.
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"""
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# search-url
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base_url = 'https://www.bing.com/'
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search_string = 'news/search?{query}&first={offset}&format=RSS'
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search_string_with_time = 'news/search?{query}&first={offset}&qft=interval%3d"{interval}"&format=RSS'
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time_range_dict = {'day': '7', 'week': '8', 'month': '9'}
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base_url = 'https://www.bing.com/news/infinitescrollajax'
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"""Bing (News) search URL"""
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bing_traits_url = 'https://learn.microsoft.com/en-us/bing/search-apis/bing-news-search/reference/market-codes'
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"""Bing (News) search API description"""
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def url_cleanup(url_string):
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"""remove click"""
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parsed_url = urlparse(url_string)
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if parsed_url.netloc == 'www.bing.com' and parsed_url.path == '/news/apiclick.aspx':
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query = dict(parse_qsl(parsed_url.query))
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url_string = query.get('url', None)
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return url_string
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def image_url_cleanup(url_string):
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"""replace the http://*bing.com/th?id=... by https://www.bing.com/th?id=..."""
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parsed_url = urlparse(url_string)
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if parsed_url.netloc.endswith('bing.com') and parsed_url.path == '/th':
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query = dict(parse_qsl(parsed_url.query))
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url_string = "https://www.bing.com/th?id=" + quote(query.get('id'))
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return url_string
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def _get_url(query, language, offset, time_range):
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if time_range in time_range_dict:
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search_path = search_string_with_time.format(
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# fmt: off
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query = urlencode({
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'q': query,
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'setmkt': language
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}),
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offset = offset,
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interval = time_range_dict[time_range]
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# fmt: on
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)
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else:
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# e.g. setmkt=de-de&setlang=de
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search_path = search_string.format(
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# fmt: off
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query = urlencode({
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'q': query,
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'setmkt': language
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}),
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offset = offset
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# fmt: on
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)
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return base_url + search_path
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mkt_alias = {
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'zh': 'en-WW',
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'zh-CN': 'en-WW',
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}
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"""Bing News has an official market code 'zh-CN' but we won't get a result with
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this market code. For 'zh' and 'zh-CN' we better use the *Worldwide aggregate*
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market code (en-WW).
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"""
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def request(query, params):
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"""Assemble a Bing-News request."""
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if params['time_range'] and params['time_range'] not in time_range_dict:
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return params
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sxng_locale = params['searxng_locale']
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engine_region = traits.get_region(mkt_alias.get(sxng_locale, sxng_locale), traits.all_locale)
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engine_language = traits.get_language(sxng_locale, 'en')
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offset = (params['pageno'] - 1) * 10 + 1
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if params['language'] == 'all':
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language = 'en-US'
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else:
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language = match_language(params['language'], supported_languages, language_aliases)
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params['url'] = _get_url(query, language, offset, params['time_range'])
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SID = uuid.uuid1().hex.upper()
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set_bing_cookies(params, engine_language, engine_region, SID)
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# build URL query
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#
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# example: https://www.bing.com/news/infinitescrollajax?q=london&first=1
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query_params = {
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# fmt: off
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'q': query,
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'InfiniteScroll': 1,
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# to simplify the page count lets use the default of 10 images per page
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'first' : (int(params.get('pageno', 1)) - 1) * 10 + 1,
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# fmt: on
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}
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if params['time_range']:
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# qft=interval:"7"
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query_params['qft'] = 'qft=interval="%s"' % time_map.get(params['time_range'], '9')
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params['url'] = base_url + '?' + urlencode(query_params)
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return params
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def response(resp):
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"""Get response from Bing-Video"""
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results = []
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rss = etree.fromstring(resp.content)
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namespaces = rss.nsmap
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for item in rss.xpath('./channel/item'):
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# url / title / content
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url = url_cleanup(eval_xpath_getindex(item, './link/text()', 0, default=None))
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title = eval_xpath_getindex(item, './title/text()', 0, default=url)
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content = eval_xpath_getindex(item, './description/text()', 0, default='')
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if not resp.ok or not resp.text:
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return results
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# publishedDate
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publishedDate = eval_xpath_getindex(item, './pubDate/text()', 0, default=None)
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try:
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publishedDate = parser.parse(publishedDate, dayfirst=False)
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except TypeError:
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publishedDate = datetime.now()
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except ValueError:
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publishedDate = datetime.now()
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dom = html.fromstring(resp.text)
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# thumbnail
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thumbnail = eval_xpath_getindex(item, XPath('./News:Image/text()', namespaces=namespaces), 0, default=None)
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if thumbnail is not None:
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thumbnail = image_url_cleanup(thumbnail)
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for newsitem in dom.xpath('//div[contains(@class, "newsitem")]'):
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# append result
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if thumbnail is not None:
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results.append(
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{'url': url, 'title': title, 'publishedDate': publishedDate, 'content': content, 'img_src': thumbnail}
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)
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else:
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results.append({'url': url, 'title': title, 'publishedDate': publishedDate, 'content': content})
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url = newsitem.xpath('./@url')[0]
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title = ' '.join(newsitem.xpath('.//div[@class="caption"]//a[@class="title"]/text()')).strip()
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content = ' '.join(newsitem.xpath('.//div[@class="snippet"]/text()')).strip()
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thumbnail = None
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author = newsitem.xpath('./@data-author')[0]
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metadata = ' '.join(newsitem.xpath('.//div[@class="source"]/span/text()')).strip()
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img_src = newsitem.xpath('.//a[@class="imagelink"]//img/@src')
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if img_src:
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thumbnail = 'https://www.bing.com/' + img_src[0]
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results.append(
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{
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'url': url,
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'title': title,
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'content': content,
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'img_src': thumbnail,
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'author': author,
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'metadata': metadata,
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}
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)
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return results
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def fetch_traits(engine_traits: EngineTraits):
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"""Fetch languages and regions from Bing-News."""
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# pylint: disable=import-outside-toplevel
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"""Fetch languages and regions from Bing-News.
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from searx.engines.bing import _fetch_traits
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The :py:obj:`description <searx.engines.bing_news.bing_traits_url>` of the
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first table says *"query parameter when calling the Video Search API."*
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.. thats why I use the 4. table "News Category API markets" for the
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``xpath_market_codes``.
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url = 'https://learn.microsoft.com/en-us/bing/search-apis/bing-news-search/reference/market-codes'
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"""
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# The description of the first table says "query parameter when calling the
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# Video Search API." .. thats why I use the 4. table "News Category API markets"
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xpath_market_codes = '//table[4]/tbody/tr/td[3]'
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# xpath_country_codes = '//table[2]/tbody/tr/td[2]'
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xpath_language_codes = '//table[3]/tbody/tr/td[2]'
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_fetch_traits(engine_traits, url, xpath_language_codes, xpath_market_codes)
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_fetch_traits(engine_traits, bing_traits_url, xpath_language_codes, xpath_market_codes)
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