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[fix] Revision of the Bing engines
Signed-off-by: Markus Heiser <markus.heiser@darmarit.de>
This commit is contained in:
Markus Heiser
Markus Heiser
parent
079636c079
commit
32a4ea350e
5 changed files with 1721 additions and 513 deletions
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@ -8,19 +8,18 @@ implementations are shared by other engines:
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- :ref:`bing videos engine`
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On the `preference page`_ Bing offers a lot of languages an regions (see section
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'Search results languages' and 'Country/region'). However, the abundant choice
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does not correspond to reality, where Bing has a full-text indexer only for a
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limited number of languages. By example: you can select a language like Māori
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but you never get a result in this language.
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LANGUAGE and COUNTRY/REGION). The Language is the language of the UI, we need
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in SearXNG to get the translations of data such as *"published last week"*.
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What comes a bit closer to the truth are the `search-APIs`_ but they don`t seem
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to be completely correct either (if you take a closer look you will find some
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inaccuracies there too):
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There is a description of the offical search-APIs_, unfortunately this is not
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the API we can use or that bing itself would use. You can look up some things
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in the API to get a better picture of bing, but the value specifications like
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the market codes are usually outdated or at least no longer used by bing itself.
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- :py:obj:`searx.engines.bing.bing_traits_url`
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- :py:obj:`searx.engines.bing_videos.bing_traits_url`
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- :py:obj:`searx.engines.bing_images.bing_traits_url`
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- :py:obj:`searx.engines.bing_news.bing_traits_url`
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The market codes have been harmonized and are identical for web, video and
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images. The news area has also been harmonized with the other categories. Only
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political adjustments still seem to be made -- for example, there is no news
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category for the Chinese market.
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.. _preference page: https://www.bing.com/account/general
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.. _search-APIs: https://learn.microsoft.com/en-us/bing/search-apis/
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@ -44,7 +43,7 @@ from searx.enginelib.traits import EngineTraits
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if TYPE_CHECKING:
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import logging
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logger: logging.Logger
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logger = logging.getLogger()
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traits: EngineTraits
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@ -61,35 +60,57 @@ about = {
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categories = ['general', 'web']
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paging = True
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time_range_support = True
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safesearch = True
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"""Bing results are always SFW. To get NSFW links from bing some age
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verification by a cookie is needed / thats not possible in SearXNG.
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"""
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base_url = 'https://www.bing.com/search'
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"""Bing (Web) search URL"""
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bing_traits_url = 'https://learn.microsoft.com/en-us/bing/search-apis/bing-web-search/reference/market-codes'
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"""Bing (Web) search API description"""
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def _page_offset(pageno):
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return (int(pageno) - 1) * 10 + 1
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def set_bing_cookies(params, engine_language, engine_region):
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params['cookies']['_EDGE_CD'] = f'm={engine_region.lower()}&u={engine_language.lower()};'
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params['cookies']['_EDGE_CD'] = f'm={engine_region}&u={engine_language}'
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params['cookies']['_EDGE_S'] = f'mkt={engine_region}&ui={engine_language}'
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logger.debug("bing cookies: %s", params['cookies'])
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def request(query, params):
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"""Assemble a Bing-Web request."""
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engine_region = traits.get_region(params['searxng_locale'], 'en-us')
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engine_language = traits.get_language(params['searxng_locale'], 'en-us')
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engine_region = traits.get_region(params['searxng_locale'], traits.all_locale) # type: ignore
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engine_language = traits.get_language(params['searxng_locale'], 'en') # type: ignore
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set_bing_cookies(params, engine_language, engine_region)
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query_params = {'q': query, 'first': _page_offset(params.get('pageno', 1))}
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page = params.get('pageno', 1)
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query_params = {
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'q': query,
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# if arg 'pq' is missed, somtimes on page 4 we get results from page 1,
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# don't ask why it is only sometimes / its M$ and they have never been
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# deterministic ;)
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'pq': query,
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}
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# To get correct page, arg first and this arg FORM is needed, the value PERE
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# is on page 2, on page 3 its PERE1 and on page 4 its PERE2 .. and so forth.
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# The 'first' arg should never send on page 1.
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if page > 1:
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query_params['first'] = _page_offset(page) # see also arg FORM
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if page == 2:
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query_params['FORM'] = 'PERE'
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elif page > 2:
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query_params['FORM'] = 'PERE%s' % (page - 2)
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params['url'] = f'{base_url}?{urlencode(query_params)}'
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if params.get('time_range'):
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unix_day = int(time.time() / 86400)
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time_ranges = {'day': '1', 'week': '2', 'month': '3', 'year': f'5_{unix_day-365}_{unix_day}'}
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if params.get('time_range') in time_ranges:
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params['url'] += f'&filters=ex1:"ez{time_ranges[params["time_range"]]}"'
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return params
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@ -113,10 +134,11 @@ def response(resp):
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url = link.attrib.get('href')
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title = extract_text(link)
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content = eval_xpath(result, '(.//p)[1]')
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content = eval_xpath(result, './/p')
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for p in content:
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# Make sure that the element is free of <a href> links
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for e in p.xpath('.//a'):
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# Make sure that the element is free of:
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# <span class="algoSlug_icon" # data-priority="2">Web</span>
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for e in p.xpath('.//span[@class="algoSlug_icon"]'):
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e.getparent().remove(e)
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content = extract_text(content)
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@ -165,72 +187,76 @@ def response(resp):
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def fetch_traits(engine_traits: EngineTraits):
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"""Fetch languages and regions from Bing-Web."""
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xpath_market_codes = '//table[1]/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, bing_traits_url, xpath_language_codes, xpath_market_codes)
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def _fetch_traits(engine_traits: EngineTraits, url: str, xpath_language_codes: str, xpath_market_codes: str):
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# pylint: disable=too-many-locals,import-outside-toplevel
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# pylint: disable=import-outside-toplevel
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from searx.network import get # see https://github.com/searxng/searxng/issues/762
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# insert alias to map from a language (zh) to a language + script (zh_Hans)
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engine_traits.languages['zh'] = 'zh-hans'
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resp = get(url)
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resp = get("https://www.bing.com/account/general")
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if not resp.ok: # type: ignore
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print("ERROR: response from peertube is not OK.")
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print("ERROR: response from bing is not OK.")
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dom = html.fromstring(resp.text) # type: ignore
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map_lang = {'jp': 'ja'}
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for td in eval_xpath(dom, xpath_language_codes):
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eng_lang = td.text
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# languages
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if eng_lang in ('en-gb', 'pt-br'):
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# language 'en' is already in the list and a language 'en-gb' can't
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# be handled in SearXNG, same with pt-br which is covered by pt-pt.
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continue
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engine_traits.languages['zh'] = 'zh-hans'
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babel_lang = map_lang.get(eng_lang, eng_lang).replace('-', '_')
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try:
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sxng_tag = language_tag(babel.Locale.parse(babel_lang))
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except babel.UnknownLocaleError:
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print("ERROR: language (%s) is unknown by babel" % (eng_lang))
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continue
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conflict = engine_traits.languages.get(sxng_tag)
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if conflict:
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if conflict != eng_lang:
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print("CONFLICT: babel %s --> %s, %s" % (sxng_tag, conflict, eng_lang))
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continue
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engine_traits.languages[sxng_tag] = eng_lang
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map_region = {
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'en-ID': 'id_ID',
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'no-NO': 'nb_NO',
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map_lang = {'prs': 'fa-AF', 'en': 'en-us'}
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bing_ui_lang_map = {
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# HINT: this list probably needs to be supplemented
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'en': 'us', # en --> en-us
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'da': 'dk', # da --> da-dk
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}
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for td in eval_xpath(dom, xpath_market_codes):
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eng_region = td.text
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babel_region = map_region.get(eng_region, eng_region).replace('-', '_')
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if eng_region == 'en-WW':
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engine_traits.all_locale = eng_region
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continue
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for href in eval_xpath(dom, '//div[@id="language-section"]//li/a/@href'):
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eng_lang = parse_qs(urlparse(href).query)['setlang'][0]
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babel_lang = map_lang.get(eng_lang, eng_lang)
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try:
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sxng_tag = region_tag(babel.Locale.parse(babel_region))
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sxng_tag = language_tag(babel.Locale.parse(babel_lang.replace('-', '_')))
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except babel.UnknownLocaleError:
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print("ERROR: region (%s) is unknown by babel" % (eng_region))
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print("ERROR: language (%s) is unknown by babel" % (babel_lang))
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continue
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# Language (e.g. 'en' or 'de') from https://www.bing.com/account/general
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# is converted by bing to 'en-us' or 'de-de'. But only if there is not
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# already a '-' delemitter in the language. For instance 'pt-PT' -->
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# 'pt-pt' and 'pt-br' --> 'pt-br'
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bing_ui_lang = eng_lang.lower()
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if '-' not in bing_ui_lang:
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bing_ui_lang = bing_ui_lang + '-' + bing_ui_lang_map.get(bing_ui_lang, bing_ui_lang)
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conflict = engine_traits.languages.get(sxng_tag)
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if conflict:
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if conflict != bing_ui_lang:
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print(f"CONFLICT: babel {sxng_tag} --> {conflict}, {bing_ui_lang}")
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continue
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engine_traits.languages[sxng_tag] = bing_ui_lang
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# regions (aka "market codes")
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engine_traits.regions['zh-CN'] = 'zh-cn'
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map_market_codes = {
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'zh-hk': 'en-hk', # not sure why, but at M$ this is the market code for Hongkong
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}
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for href in eval_xpath(dom, '//div[@id="region-section"]//li/a/@href'):
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cc_tag = parse_qs(urlparse(href).query)['cc'][0]
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if cc_tag == 'clear':
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engine_traits.all_locale = cc_tag
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continue
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# add market codes from official languages of the country ..
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for lang_tag in babel.languages.get_official_languages(cc_tag, de_facto=True):
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if lang_tag not in engine_traits.languages.keys():
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# print("ignore lang: %s <-- %s" % (cc_tag, lang_tag))
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continue
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lang_tag = lang_tag.split('_')[0] # zh_Hant --> zh
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market_code = f"{lang_tag}-{cc_tag}" # zh-tw
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market_code = map_market_codes.get(market_code, market_code)
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sxng_tag = region_tag(babel.Locale.parse('%s_%s' % (lang_tag, cc_tag.upper())))
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conflict = engine_traits.regions.get(sxng_tag)
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if conflict:
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if conflict != eng_region:
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print("CONFLICT: babel %s --> %s, %s" % (sxng_tag, conflict, eng_region))
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if conflict != market_code:
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print("CONFLICT: babel %s --> %s, %s" % (sxng_tag, conflict, market_code))
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continue
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engine_traits.regions[sxng_tag] = eng_region
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engine_traits.regions[sxng_tag] = market_code
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@ -12,15 +12,14 @@ 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 set_bing_cookies
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from searx.engines.bing import fetch_traits # 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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logger = logging.getLogger()
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traits: EngineTraits
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@ -43,38 +42,29 @@ time_range_support = True
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base_url = 'https://www.bing.com/images/async'
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"""Bing (Images) search URL"""
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bing_traits_url = 'https://learn.microsoft.com/en-us/bing/search-apis/bing-image-search/reference/market-codes'
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"""Bing (Images) search API description"""
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time_map = {
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# fmt: off
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'day': 60 * 24,
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'week': 60 * 24 * 7,
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'month': 60 * 24 * 31,
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'year': 60 * 24 * 365,
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# fmt: on
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}
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def request(query, params):
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"""Assemble a Bing-Image request."""
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engine_region = traits.get_region(params['searxng_locale'], 'en-us')
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engine_language = traits.get_language(params['searxng_locale'], 'en-us')
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engine_region = traits.get_region(params['searxng_locale'], traits.all_locale) # type: ignore
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engine_language = traits.get_language(params['searxng_locale'], 'en') # type: ignore
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set_bing_cookies(params, engine_language, engine_region)
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# build URL query
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# - example: https://www.bing.com/images/async?q=foo&first=155&count=35
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# - example: https://www.bing.com/images/async?q=foo&async=content&first=1&count=35
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query_params = {
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# fmt: off
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'q': query,
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'async' : 'content',
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'async': '1',
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# to simplify the page count lets use the default of 35 images per page
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'first': (int(params.get('pageno', 1)) - 1) * 35 + 1,
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'count': 35,
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# fmt: on
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}
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# time range
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@ -117,13 +107,3 @@ def response(resp):
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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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xpath_market_codes = '//table[1]/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, bing_traits_url, xpath_language_codes, xpath_market_codes)
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@ -1,6 +1,11 @@
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# SPDX-License-Identifier: AGPL-3.0-or-later
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# lint: pylint
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"""Bing-News: description see :py:obj:`searx.engines.bing`.
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.. hint::
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Bing News is *different* in some ways!
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"""
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# pylint: disable=invalid-name
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@ -10,11 +15,9 @@ from urllib.parse import urlencode
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from lxml import html
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from searx.utils import eval_xpath, extract_text, eval_xpath_list, eval_xpath_getindex
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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 set_bing_cookies
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if TYPE_CHECKING:
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import logging
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@ -37,57 +40,48 @@ about = {
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# engine dependent config
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categories = ['news']
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paging = True
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"""If go through the pages and there are actually no new results for another
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page, then bing returns the results from the last page again."""
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time_range_support = 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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'day': 'interval="4"',
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'week': 'interval="7"',
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'month': 'interval="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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Bing does not have news range ``year`` / we use ``month`` instead."""
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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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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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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-us')
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engine_region = traits.get_region(params['searxng_locale'], traits.all_locale) # type: ignore
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engine_language = traits.get_language(params['searxng_locale'], 'en') # type: ignore
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set_bing_cookies(params, engine_language, engine_region)
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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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page = int(params.get('pageno', 1)) - 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,
|
||||
# to simplify the page count lets use the default of 10 images per page
|
||||
'first' : (int(params.get('pageno', 1)) - 1) * 10 + 1,
|
||||
# fmt: on
|
||||
'first': page * 10 + 1,
|
||||
'SFX': page,
|
||||
'form': 'PTFTNR',
|
||||
'setlang': engine_region.split('-')[0],
|
||||
'cc': engine_region.split('-')[-1],
|
||||
}
|
||||
|
||||
if params['time_range']:
|
||||
# qft=interval:"7"
|
||||
query_params['qft'] = 'qft=interval="%s"' % time_map.get(params['time_range'], '9')
|
||||
query_params['qft'] = time_map.get(params['time_range'], 'interval="9"')
|
||||
|
||||
params['url'] = base_url + '?' + urlencode(query_params)
|
||||
|
||||
|
|
@ -103,18 +97,34 @@ def response(resp):
|
|||
|
||||
dom = html.fromstring(resp.text)
|
||||
|
||||
for newsitem in dom.xpath('//div[contains(@class, "newsitem")]'):
|
||||
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)
|
||||
|
||||
url = newsitem.xpath('./@url')[0]
|
||||
title = ' '.join(newsitem.xpath('.//div[@class="caption"]//a[@class="title"]/text()')).strip()
|
||||
content = ' '.join(newsitem.xpath('.//div[@class="snippet"]/text()')).strip()
|
||||
thumbnail = None
|
||||
author = newsitem.xpath('./@data-author')[0]
|
||||
metadata = ' '.join(newsitem.xpath('.//div[@class="source"]/span/text()')).strip()
|
||||
|
||||
img_src = newsitem.xpath('.//a[@class="imagelink"]//img/@src')
|
||||
if img_src:
|
||||
thumbnail = 'https://www.bing.com/' + img_src[0]
|
||||
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(
|
||||
{
|
||||
|
|
@ -122,7 +132,6 @@ def response(resp):
|
|||
'title': title,
|
||||
'content': content,
|
||||
'img_src': thumbnail,
|
||||
'author': author,
|
||||
'metadata': metadata,
|
||||
}
|
||||
)
|
||||
|
|
@ -131,17 +140,20 @@ def response(resp):
|
|||
|
||||
|
||||
def fetch_traits(engine_traits: EngineTraits):
|
||||
"""Fetch languages and regions from Bing-News.
|
||||
"""Fetch languages and regions from Bing-News."""
|
||||
# pylint: disable=import-outside-toplevel
|
||||
|
||||
The :py:obj:`description <searx.engines.bing_news.bing_traits_url>` of the
|
||||
first table says *"query parameter when calling the Video Search API."*
|
||||
.. that's why I use the 4. table "News Category API markets" for the
|
||||
``xpath_market_codes``.
|
||||
from searx.engines.bing import fetch_traits as _f
|
||||
|
||||
"""
|
||||
_f(engine_traits)
|
||||
|
||||
xpath_market_codes = '//table[4]/tbody/tr/td[3]'
|
||||
# xpath_country_codes = '//table[2]/tbody/tr/td[2]'
|
||||
xpath_language_codes = '//table[3]/tbody/tr/td[2]'
|
||||
# fix market codes not known by bing news:
|
||||
|
||||
_fetch_traits(engine_traits, bing_traits_url, xpath_language_codes, xpath_market_codes)
|
||||
# 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'
|
||||
|
|
|
|||
|
|
@ -11,10 +11,9 @@ from urllib.parse import urlencode
|
|||
from lxml import html
|
||||
|
||||
from searx.enginelib.traits import EngineTraits
|
||||
from searx.engines.bing import (
|
||||
set_bing_cookies,
|
||||
_fetch_traits,
|
||||
)
|
||||
from searx.engines.bing import set_bing_cookies
|
||||
from searx.engines.bing import fetch_traits # pylint: disable=unused-import
|
||||
from searx.engines.bing_images import time_map
|
||||
|
||||
if TYPE_CHECKING:
|
||||
import logging
|
||||
|
|
@ -42,25 +41,12 @@ time_range_support = True
|
|||
base_url = 'https://www.bing.com/videos/asyncv2'
|
||||
"""Bing (Videos) async search URL."""
|
||||
|
||||
bing_traits_url = 'https://learn.microsoft.com/en-us/bing/search-apis/bing-video-search/reference/market-codes'
|
||||
"""Bing (Video) search API description"""
|
||||
|
||||
time_map = {
|
||||
# fmt: off
|
||||
'day': 60 * 24,
|
||||
'week': 60 * 24 * 7,
|
||||
'month': 60 * 24 * 31,
|
||||
'year': 60 * 24 * 365,
|
||||
# fmt: on
|
||||
}
|
||||
|
||||
|
||||
def request(query, params):
|
||||
"""Assemble a Bing-Video request."""
|
||||
|
||||
engine_region = traits.get_region(params['searxng_locale'], 'en-us')
|
||||
engine_language = traits.get_language(params['searxng_locale'], 'en-us')
|
||||
|
||||
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
|
||||
|
|
@ -68,13 +54,11 @@ def request(query, params):
|
|||
# example: https://www.bing.com/videos/asyncv2?q=foo&async=content&first=1&count=35
|
||||
|
||||
query_params = {
|
||||
# fmt: off
|
||||
'q': query,
|
||||
'async': 'content',
|
||||
# to simplify the page count lets use the default of 35 images per page
|
||||
'first': (int(params.get('pageno', 1)) - 1) * 35 + 1,
|
||||
'count': 35,
|
||||
# fmt: on
|
||||
}
|
||||
|
||||
# time range
|
||||
|
|
@ -113,13 +97,3 @@ def response(resp):
|
|||
)
|
||||
|
||||
return results
|
||||
|
||||
|
||||
def fetch_traits(engine_traits: EngineTraits):
|
||||
"""Fetch languages and regions from Bing-Videos."""
|
||||
|
||||
xpath_market_codes = '//table[1]/tbody/tr/td[3]'
|
||||
# xpath_country_codes = '//table[2]/tbody/tr/td[2]'
|
||||
xpath_language_codes = '//table[3]/tbody/tr/td[2]'
|
||||
|
||||
_fetch_traits(engine_traits, bing_traits_url, xpath_language_codes, xpath_market_codes)
|
||||
|
|
|
|||
Loading…
Reference in a new issue