mirror of
https://github.com/searxng/searxng.git
synced 2025-07-30 16:42:22 +02:00
[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
|
|
@ -8,19 +8,18 @@ implementations are shared by other engines:
|
|||
- :ref:`bing videos engine`
|
||||
|
||||
On the `preference page`_ Bing offers a lot of languages an regions (see section
|
||||
'Search results languages' and 'Country/region'). However, the abundant choice
|
||||
does not correspond to reality, where Bing has a full-text indexer only for a
|
||||
limited number of languages. By example: you can select a language like Māori
|
||||
but you never get a result in this language.
|
||||
LANGUAGE and COUNTRY/REGION). The Language is the language of the UI, we need
|
||||
in SearXNG to get the translations of data such as *"published last week"*.
|
||||
|
||||
What comes a bit closer to the truth are the `search-APIs`_ but they don`t seem
|
||||
to be completely correct either (if you take a closer look you will find some
|
||||
inaccuracies there too):
|
||||
There is a description of the offical search-APIs_, unfortunately this is not
|
||||
the API we can use or that bing itself would use. You can look up some things
|
||||
in the API to get a better picture of bing, but the value specifications like
|
||||
the market codes are usually outdated or at least no longer used by bing itself.
|
||||
|
||||
- :py:obj:`searx.engines.bing.bing_traits_url`
|
||||
- :py:obj:`searx.engines.bing_videos.bing_traits_url`
|
||||
- :py:obj:`searx.engines.bing_images.bing_traits_url`
|
||||
- :py:obj:`searx.engines.bing_news.bing_traits_url`
|
||||
The market codes have been harmonized and are identical for web, video and
|
||||
images. The news area has also been harmonized with the other categories. Only
|
||||
political adjustments still seem to be made -- for example, there is no news
|
||||
category for the Chinese market.
|
||||
|
||||
.. _preference page: https://www.bing.com/account/general
|
||||
.. _search-APIs: https://learn.microsoft.com/en-us/bing/search-apis/
|
||||
|
|
@ -44,7 +43,7 @@ from searx.enginelib.traits import EngineTraits
|
|||
if TYPE_CHECKING:
|
||||
import logging
|
||||
|
||||
logger: logging.Logger
|
||||
logger = logging.getLogger()
|
||||
|
||||
traits: EngineTraits
|
||||
|
||||
|
|
@ -61,35 +60,57 @@ about = {
|
|||
categories = ['general', 'web']
|
||||
paging = True
|
||||
time_range_support = True
|
||||
safesearch = True
|
||||
"""Bing results are always SFW. To get NSFW links from bing some age
|
||||
verification by a cookie is needed / thats not possible in SearXNG.
|
||||
"""
|
||||
|
||||
base_url = 'https://www.bing.com/search'
|
||||
"""Bing (Web) search URL"""
|
||||
|
||||
bing_traits_url = 'https://learn.microsoft.com/en-us/bing/search-apis/bing-web-search/reference/market-codes'
|
||||
"""Bing (Web) search API description"""
|
||||
|
||||
|
||||
def _page_offset(pageno):
|
||||
return (int(pageno) - 1) * 10 + 1
|
||||
|
||||
|
||||
def set_bing_cookies(params, engine_language, engine_region):
|
||||
params['cookies']['_EDGE_CD'] = f'm={engine_region.lower()}&u={engine_language.lower()};'
|
||||
params['cookies']['_EDGE_CD'] = f'm={engine_region}&u={engine_language}'
|
||||
params['cookies']['_EDGE_S'] = f'mkt={engine_region}&ui={engine_language}'
|
||||
logger.debug("bing cookies: %s", params['cookies'])
|
||||
|
||||
|
||||
def request(query, params):
|
||||
"""Assemble a Bing-Web 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)
|
||||
|
||||
query_params = {'q': query, 'first': _page_offset(params.get('pageno', 1))}
|
||||
page = params.get('pageno', 1)
|
||||
query_params = {
|
||||
'q': query,
|
||||
# if arg 'pq' is missed, somtimes on page 4 we get results from page 1,
|
||||
# don't ask why it is only sometimes / its M$ and they have never been
|
||||
# deterministic ;)
|
||||
'pq': query,
|
||||
}
|
||||
|
||||
# To get correct page, arg first and this arg FORM is needed, the value PERE
|
||||
# is on page 2, on page 3 its PERE1 and on page 4 its PERE2 .. and so forth.
|
||||
# The 'first' arg should never send on page 1.
|
||||
|
||||
if page > 1:
|
||||
query_params['first'] = _page_offset(page) # see also arg FORM
|
||||
if page == 2:
|
||||
query_params['FORM'] = 'PERE'
|
||||
elif page > 2:
|
||||
query_params['FORM'] = 'PERE%s' % (page - 2)
|
||||
|
||||
params['url'] = f'{base_url}?{urlencode(query_params)}'
|
||||
|
||||
unix_day = int(time.time() / 86400)
|
||||
time_ranges = {'day': '1', 'week': '2', 'month': '3', 'year': f'5_{unix_day-365}_{unix_day}'}
|
||||
if params.get('time_range') in time_ranges:
|
||||
if params.get('time_range'):
|
||||
unix_day = int(time.time() / 86400)
|
||||
time_ranges = {'day': '1', 'week': '2', 'month': '3', 'year': f'5_{unix_day-365}_{unix_day}'}
|
||||
params['url'] += f'&filters=ex1:"ez{time_ranges[params["time_range"]]}"'
|
||||
|
||||
return params
|
||||
|
|
@ -113,10 +134,11 @@ def response(resp):
|
|||
url = link.attrib.get('href')
|
||||
title = extract_text(link)
|
||||
|
||||
content = eval_xpath(result, '(.//p)[1]')
|
||||
content = eval_xpath(result, './/p')
|
||||
for p in content:
|
||||
# Make sure that the element is free of <a href> links
|
||||
for e in p.xpath('.//a'):
|
||||
# Make sure that the element is free of:
|
||||
# <span class="algoSlug_icon" # data-priority="2">Web</span>
|
||||
for e in p.xpath('.//span[@class="algoSlug_icon"]'):
|
||||
e.getparent().remove(e)
|
||||
content = extract_text(content)
|
||||
|
||||
|
|
@ -165,72 +187,76 @@ def response(resp):
|
|||
|
||||
def fetch_traits(engine_traits: EngineTraits):
|
||||
"""Fetch languages and regions from Bing-Web."""
|
||||
|
||||
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)
|
||||
|
||||
|
||||
def _fetch_traits(engine_traits: EngineTraits, url: str, xpath_language_codes: str, xpath_market_codes: str):
|
||||
# pylint: disable=too-many-locals,import-outside-toplevel
|
||||
# pylint: disable=import-outside-toplevel
|
||||
|
||||
from searx.network import get # see https://github.com/searxng/searxng/issues/762
|
||||
|
||||
# insert alias to map from a language (zh) to a language + script (zh_Hans)
|
||||
engine_traits.languages['zh'] = 'zh-hans'
|
||||
|
||||
resp = get(url)
|
||||
|
||||
resp = get("https://www.bing.com/account/general")
|
||||
if not resp.ok: # type: ignore
|
||||
print("ERROR: response from peertube is not OK.")
|
||||
print("ERROR: response from bing is not OK.")
|
||||
|
||||
dom = html.fromstring(resp.text) # type: ignore
|
||||
|
||||
map_lang = {'jp': 'ja'}
|
||||
for td in eval_xpath(dom, xpath_language_codes):
|
||||
eng_lang = td.text
|
||||
# languages
|
||||
|
||||
if eng_lang in ('en-gb', 'pt-br'):
|
||||
# language 'en' is already in the list and a language 'en-gb' can't
|
||||
# be handled in SearXNG, same with pt-br which is covered by pt-pt.
|
||||
continue
|
||||
engine_traits.languages['zh'] = 'zh-hans'
|
||||
|
||||
babel_lang = map_lang.get(eng_lang, eng_lang).replace('-', '_')
|
||||
try:
|
||||
sxng_tag = language_tag(babel.Locale.parse(babel_lang))
|
||||
except babel.UnknownLocaleError:
|
||||
print("ERROR: language (%s) is unknown by babel" % (eng_lang))
|
||||
continue
|
||||
conflict = engine_traits.languages.get(sxng_tag)
|
||||
if conflict:
|
||||
if conflict != eng_lang:
|
||||
print("CONFLICT: babel %s --> %s, %s" % (sxng_tag, conflict, eng_lang))
|
||||
continue
|
||||
engine_traits.languages[sxng_tag] = eng_lang
|
||||
|
||||
map_region = {
|
||||
'en-ID': 'id_ID',
|
||||
'no-NO': 'nb_NO',
|
||||
map_lang = {'prs': 'fa-AF', 'en': 'en-us'}
|
||||
bing_ui_lang_map = {
|
||||
# HINT: this list probably needs to be supplemented
|
||||
'en': 'us', # en --> en-us
|
||||
'da': 'dk', # da --> da-dk
|
||||
}
|
||||
|
||||
for td in eval_xpath(dom, xpath_market_codes):
|
||||
eng_region = td.text
|
||||
babel_region = map_region.get(eng_region, eng_region).replace('-', '_')
|
||||
|
||||
if eng_region == 'en-WW':
|
||||
engine_traits.all_locale = eng_region
|
||||
continue
|
||||
|
||||
for href in eval_xpath(dom, '//div[@id="language-section"]//li/a/@href'):
|
||||
eng_lang = parse_qs(urlparse(href).query)['setlang'][0]
|
||||
babel_lang = map_lang.get(eng_lang, eng_lang)
|
||||
try:
|
||||
sxng_tag = region_tag(babel.Locale.parse(babel_region))
|
||||
sxng_tag = language_tag(babel.Locale.parse(babel_lang.replace('-', '_')))
|
||||
except babel.UnknownLocaleError:
|
||||
print("ERROR: region (%s) is unknown by babel" % (eng_region))
|
||||
print("ERROR: language (%s) is unknown by babel" % (babel_lang))
|
||||
continue
|
||||
conflict = engine_traits.regions.get(sxng_tag)
|
||||
# Language (e.g. 'en' or 'de') from https://www.bing.com/account/general
|
||||
# is converted by bing to 'en-us' or 'de-de'. But only if there is not
|
||||
# already a '-' delemitter in the language. For instance 'pt-PT' -->
|
||||
# 'pt-pt' and 'pt-br' --> 'pt-br'
|
||||
bing_ui_lang = eng_lang.lower()
|
||||
if '-' not in bing_ui_lang:
|
||||
bing_ui_lang = bing_ui_lang + '-' + bing_ui_lang_map.get(bing_ui_lang, bing_ui_lang)
|
||||
|
||||
conflict = engine_traits.languages.get(sxng_tag)
|
||||
if conflict:
|
||||
if conflict != eng_region:
|
||||
print("CONFLICT: babel %s --> %s, %s" % (sxng_tag, conflict, eng_region))
|
||||
if conflict != bing_ui_lang:
|
||||
print(f"CONFLICT: babel {sxng_tag} --> {conflict}, {bing_ui_lang}")
|
||||
continue
|
||||
engine_traits.regions[sxng_tag] = eng_region
|
||||
engine_traits.languages[sxng_tag] = bing_ui_lang
|
||||
|
||||
# regions (aka "market codes")
|
||||
|
||||
engine_traits.regions['zh-CN'] = 'zh-cn'
|
||||
|
||||
map_market_codes = {
|
||||
'zh-hk': 'en-hk', # not sure why, but at M$ this is the market code for Hongkong
|
||||
}
|
||||
for href in eval_xpath(dom, '//div[@id="region-section"]//li/a/@href'):
|
||||
cc_tag = parse_qs(urlparse(href).query)['cc'][0]
|
||||
if cc_tag == 'clear':
|
||||
engine_traits.all_locale = cc_tag
|
||||
continue
|
||||
|
||||
# add market codes from official languages of the country ..
|
||||
for lang_tag in babel.languages.get_official_languages(cc_tag, de_facto=True):
|
||||
if lang_tag not in engine_traits.languages.keys():
|
||||
# print("ignore lang: %s <-- %s" % (cc_tag, lang_tag))
|
||||
continue
|
||||
lang_tag = lang_tag.split('_')[0] # zh_Hant --> zh
|
||||
market_code = f"{lang_tag}-{cc_tag}" # zh-tw
|
||||
|
||||
market_code = map_market_codes.get(market_code, market_code)
|
||||
sxng_tag = region_tag(babel.Locale.parse('%s_%s' % (lang_tag, cc_tag.upper())))
|
||||
conflict = engine_traits.regions.get(sxng_tag)
|
||||
if conflict:
|
||||
if conflict != market_code:
|
||||
print("CONFLICT: babel %s --> %s, %s" % (sxng_tag, conflict, market_code))
|
||||
continue
|
||||
engine_traits.regions[sxng_tag] = market_code
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue