forked from zaclys/searxng
Merge pull request #2483 from return42/fix-google-news
[fix] revise of the google-News engine
This commit is contained in:
Alexandre Flament
GitHub
commit
7d24850d49
4
Makefile
4
Makefile
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@ -177,7 +177,9 @@ PYLINT_FILES=\
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searx/testing.py \
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searx/engines/gigablast.py \
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searx/engines/deviantart.py \
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searx/engines/digg.py
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searx/engines/digg.py \
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searx/engines/google.py \
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searx/engines/google_news.py
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test.pylint: pyenvinstall
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$(call cmd,pylint,$(PYLINT_FILES))
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@ -155,6 +155,11 @@ def get_lang_country(params, lang_list, custom_aliases):
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return language, country, lang_country
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def detect_google_sorry(resp):
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resp_url = urlparse(resp.url)
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if resp_url.netloc == 'sorry.google.com' or resp_url.path.startswith('/sorry'):
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raise SearxEngineCaptchaException()
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def request(query, params):
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"""Google search request"""
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@ -200,16 +205,10 @@ def request(query, params):
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def response(resp):
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"""Get response from google's search request"""
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detect_google_sorry(resp)
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results = []
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# detect google sorry
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resp_url = urlparse(resp.url)
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if resp_url.netloc == 'sorry.google.com' or resp_url.path == '/sorry/IndexRedirect':
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raise SearxEngineCaptchaException()
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if resp_url.path.startswith('/sorry'):
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raise SearxEngineCaptchaException()
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# which subdomain ?
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# subdomain = resp.search_params.get('google_subdomain')
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@ -12,10 +12,9 @@ Definitions`_.
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Header set Content-Security-Policy "img-src 'self' data: ;"
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"""
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from urllib.parse import urlencode, urlparse, unquote
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from urllib.parse import urlencode, unquote
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from lxml import html
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from searx import logger
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from searx.exceptions import SearxEngineCaptchaException
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from searx.utils import extract_text, eval_xpath
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from searx.engines.google import _fetch_supported_languages, supported_languages_url # NOQA # pylint: disable=unused-import
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@ -23,6 +22,7 @@ from searx.engines.google import (
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get_lang_country,
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google_domains,
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time_range_dict,
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detect_google_sorry,
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)
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logger = logger.getChild('google images')
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@ -123,13 +123,7 @@ def response(resp):
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"""Get response from google's search request"""
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results = []
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# detect google sorry
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resp_url = urlparse(resp.url)
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if resp_url.netloc == 'sorry.google.com' or resp_url.path == '/sorry/IndexRedirect':
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raise SearxEngineCaptchaException()
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if resp_url.path.startswith('/sorry'):
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raise SearxEngineCaptchaException()
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detect_google_sorry(resp)
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# which subdomain ?
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# subdomain = resp.search_params.get('google_subdomain')
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@ -1,12 +1,45 @@
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# SPDX-License-Identifier: AGPL-3.0-or-later
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"""
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Google (News)
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"""Google (News)
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For detailed description of the *REST-full* API see: `Query Parameter
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Definitions`_. Not all parameters can be appied, e.g. num_ (the number of
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search results to return) is ignored.
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.. _Query Parameter Definitions:
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https://developers.google.com/custom-search/docs/xml_results#WebSearch_Query_Parameter_Definitions
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.. _num: https://developers.google.com/custom-search/docs/xml_results#numsp
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"""
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# pylint: disable=invalid-name, missing-function-docstring
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import binascii
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import re
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from urllib.parse import urlencode
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from base64 import b64decode
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from lxml import html
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from searx.utils import match_language
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from searx.engines.google import _fetch_supported_languages, supported_languages_url # NOQA # pylint: disable=unused-import
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from searx import logger
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from searx.utils import (
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eval_xpath,
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eval_xpath_list,
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eval_xpath_getindex,
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extract_text,
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)
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# pylint: disable=unused-import
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from searx.engines.google import (
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supported_languages_url,
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_fetch_supported_languages,
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detect_google_sorry,
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)
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# pylint: enable=unused-import
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from searx.engines.google import (
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get_lang_country,
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filter_mapping,
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)
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# about
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about = {
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@ -18,72 +51,143 @@ about = {
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"results": 'HTML',
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}
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# search-url
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logger = logger.getChild('google news')
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# compared to other google engines google-news has a different time range
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# support. The time range is included in the search term.
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time_range_dict = {
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'day': 'when:1d',
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'week': 'when:7d',
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'month': 'when:1m',
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'year': 'when:1y',
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}
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# engine dependent config
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categories = ['news']
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paging = True
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paging = False
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language_support = True
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safesearch = True
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use_locale_domain = True
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time_range_support = True
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number_of_results = 10
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safesearch = True # not really, but it is not generated by google
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search_url = 'https://www.google.com/search'\
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'?{query}'\
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'&tbm=nws'\
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'&gws_rd=cr'\
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'&{search_options}'
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time_range_attr = "qdr:{range}"
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time_range_dict = {'day': 'd',
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'week': 'w',
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'month': 'm',
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'year': 'y'}
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# do search-request
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def request(query, params):
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"""Google-News search request"""
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search_options = {
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'start': (params['pageno'] - 1) * number_of_results
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}
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language, country, lang_country = get_lang_country(
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# pylint: disable=undefined-variable
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params, supported_languages, language_aliases
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)
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subdomain = 'news.google.com'
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if params['time_range'] in time_range_dict:
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search_options['tbs'] = time_range_attr.format(range=time_range_dict[params['time_range']])
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if params['time_range']: # in time_range_dict:
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query += ' ' + time_range_dict[params['time_range']]
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if safesearch and params['safesearch']:
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search_options['safe'] = 'on'
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query_url = 'https://'+ subdomain + '/search' + "?" + urlencode({
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'q': query,
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'hl': lang_country,
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'lr': "lang_" + language,
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'ie': "utf8",
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'oe': "utf8",
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'ceid' : "%s:%s" % (country, language),
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'gl' : country,
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})
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params['url'] = search_url.format(query=urlencode({'q': query}),
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search_options=urlencode(search_options))
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if params['safesearch']:
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query_url += '&' + urlencode({'safe': filter_mapping[params['safesearch']]})
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if params['language'] != 'all':
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language = match_language(params['language'], supported_languages, language_aliases).split('-')[0]
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if language:
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params['url'] += '&hl=' + language
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params['url'] = query_url
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logger.debug("query_url --> %s", query_url)
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# en-US,en;q=0.8,en;q=0.5
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params['headers']['Accept-Language'] = (
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lang_country + ',' + language + ';q=0.8,' + language + ';q=0.5'
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)
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logger.debug("HTTP header Accept-Language --> %s",
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params['headers']['Accept-Language'])
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params['headers']['Accept'] = (
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'text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8'
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)
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#params['google_subdomain'] = subdomain
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return params
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# get response from search-request
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def response(resp):
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"""Get response from google's search request"""
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results = []
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detect_google_sorry(resp)
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# which subdomain ?
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# subdomain = resp.search_params.get('google_subdomain')
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# convert the text to dom
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dom = html.fromstring(resp.text)
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# parse results
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for result in dom.xpath('//div[@class="g"]|//div[@class="g _cy"]'):
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try:
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r = {
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'url': result.xpath('.//a[@class="l lLrAF"]')[0].attrib.get("href"),
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'title': ''.join(result.xpath('.//a[@class="l lLrAF"]//text()')),
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'content': ''.join(result.xpath('.//div[@class="st"]//text()')),
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}
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except:
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continue
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for result in eval_xpath_list(dom, '//div[@class="xrnccd"]'):
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imgs = result.xpath('.//img/@src')
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if len(imgs) and not imgs[0].startswith('data'):
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r['img_src'] = imgs[0]
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# The first <a> tag in the <article> contains the link to the
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# article The href attribute of the <a> is a google internal link,
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# we can't use. The real link is hidden in the jslog attribute:
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#
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# <a ...
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# jslog="95014; 4:https://www.cnn.com/.../index.html; track:click"
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# href="./articles/CAIiENu3nGS...?hl=en-US&gl=US&ceid=US%3Aen"
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# ... />
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results.append(r)
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jslog = eval_xpath_getindex(result, './article/a/@jslog', 0)
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url = re.findall('http[^;]*', jslog)
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if url:
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url = url[0]
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else:
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# The real URL is base64 encoded in the json attribute:
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# jslog="95014; 5:W251bGwsbnVsbCxudW...giXQ==; track:click"
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jslog = jslog.split(";")[1].split(':')[1].strip()
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try:
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padding = (4 -(len(jslog) % 4)) * "="
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jslog = b64decode(jslog + padding)
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except binascii.Error:
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# URL cant be read, skip this result
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continue
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# now we have : b'[null, ... null,"https://www.cnn.com/.../index.html"]'
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url = re.findall('http[^;"]*', str(jslog))[0]
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# the first <h3> tag in the <article> contains the title of the link
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title = extract_text(eval_xpath(result, './article/h3[1]'))
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# the first <div> tag in the <article> contains the content of the link
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content = extract_text(eval_xpath(result, './article/div[1]'))
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# the second <div> tag contains origin publisher and the publishing date
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pub_date = extract_text(eval_xpath(result, './article/div[2]//time'))
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pub_origin = extract_text(eval_xpath(result, './article/div[2]//a'))
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pub_info = []
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if pub_origin:
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pub_info.append(pub_origin)
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if pub_date:
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# The pub_date is mostly a string like 'yesertday', not a real
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# timezone date or time. Therefore we can't use publishedDate.
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pub_info.append(pub_date)
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pub_info = ', '.join(pub_info)
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if pub_info:
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content = pub_info + ': ' + content
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# The image URL is located in a preceding sibling <img> tag, e.g.:
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# "https://lh3.googleusercontent.com/DjhQh7DMszk.....z=-p-h100-w100"
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# These URL are long but not personalized (double checked via tor).
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img_src = extract_text(result.xpath('preceding-sibling::a/figure/img/@src'))
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results.append({
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'url': url,
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'title': title,
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'content': content,
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'img_src': img_src,
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})
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# return results
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return results
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