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In the EU there exists a "General Data Protection Regulation" [1] aka GDPR (BTW:
very user friendly!) which requires consent to tracking. To get the consent
from the user, google-news requests are redirected to confirm and get a CONSENT
Cookie from https://consent.google.de/s?continue=...
This patch adds a CONSENT Cookie to the google-news request to avoid
redirection.
The behavior of the CONTENTS cookies over all google engines seems similar but
the pattern is not yet fully clear to me, here are some random samples from my
analysis ..
Using common google search from different domains::
google.com: CONSENT=YES+cb.{{date}}-14-p0.de+FX+816
google.de: CONSENT=YES+cb.{{date}}-14-p0.de+FX+333
google.fr: CONSENT=YES+srp.gws-{{date}}-0-RC2.fr+FX+826
When searching about videos (google-videos)::
google.es: CONSENT=YES+srp.gws-{{date}}-0-RC2.es+FX+076
google.de: CONSENT=YES+srp.gws-{{date}}-0-RC2.de+FX+171
Google news has only one domain for all languages::
news.google.com: CONSENT=YES+cb.{{date}}-14-p0.de+FX+816
Using google-scholar search from different domains::
scholar.google.de: CONSENT=YES+cb.{{date}}-14-p0.de+FX+333
scholar.google.fr: does not use such a cookie / did not ask the user
scholar.google.es: does not use such a cookie / did not ask the user
Interim summary:
Pattern is unclear and I won't apply the CONSENT cookie to all google engines.
More experience is need before we generalize the CONSENT cookies over all
google engines.
Related:
- e9a6ab401
[fix] youtube - send CONSENT Cookie to not be redirected
- https://github.com/benbusby/whoogle-search/issues/311
- https://github.com/benbusby/whoogle-search/issues/243
[1] https://en.wikipedia.org/wiki/General_Data_Protection_Regulation
Signed-off-by: Markus Heiser <markus.heiser@darmarit.de>
199 lines
6.3 KiB
Python
199 lines
6.3 KiB
Python
# SPDX-License-Identifier: AGPL-3.0-or-later
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# lint: pylint
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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:
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- num_ : the number of search results is ignored
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- save_ : is ignored / Google-News results are always *SafeSearch*
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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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.. _save: https://developers.google.com/custom-search/docs/xml_results#safesp
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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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from datetime import datetime
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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 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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)
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# pylint: enable=unused-import
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from searx.engines.google import (
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get_lang_info,
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detect_google_sorry,
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)
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# about
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about = {
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"website": 'https://news.google.com',
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"wikidata_id": 'Q12020',
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"official_api_documentation": 'https://developers.google.com/custom-search',
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"use_official_api": False,
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"require_api_key": False,
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"results": 'HTML',
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}
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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 = False
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use_locale_domain = True
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time_range_support = True
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# Google-News results are always *SafeSearch*. Option 'safesearch' is set to
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# False here, otherwise checker will report safesearch-errors::
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#
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# safesearch : results are identitical for safesearch=0 and safesearch=2
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safesearch = False
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def request(query, params):
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"""Google-News search request"""
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lang_info = get_lang_info(
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# pylint: disable=undefined-variable
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params, supported_languages, language_aliases, False
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)
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logger.debug(
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"HTTP header Accept-Language --> %s", lang_info['headers']['Accept-Language'])
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# google news has only one domain
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lang_info['subdomain'] = 'news.google.com'
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ceid = "%s:%s" % (lang_info['country'], lang_info['language'])
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# google news redirects en to en-US
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if lang_info['params']['hl'] == 'en':
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lang_info['params']['hl'] = 'en-US'
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# Very special to google-news compared to other google engines, the time
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# range is included in the search term.
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if params['time_range']:
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query += ' ' + time_range_dict[params['time_range']]
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query_url = 'https://' + lang_info['subdomain'] + '/search' + "?" + urlencode({
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'q': query,
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**lang_info['params'],
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'ie': "utf8",
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'oe': "utf8",
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'gl': lang_info['country'],
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}) + ('&ceid=%s' % ceid) # ceid includes a ':' character which must not be urlencoded
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params['url'] = query_url
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params['headers'].update(lang_info['headers'])
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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['headers']['Cookie'] = "CONSENT=YES+cb.%s-14-p0.en+F+941;" % datetime.now().strftime("%Y%m%d")
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return params
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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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# convert the text to dom
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dom = html.fromstring(resp.text)
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for result in eval_xpath_list(dom, '//div[@class="xrnccd"]'):
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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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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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