searxng/searx/engines/google_videos.py

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# SPDX-License-Identifier: AGPL-3.0-or-later
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"""
Google (Viedo)
For detailed description of the *REST-full* API see: `Query Parameter
Definitions`_. Not all parameters can be appied.
.. _admonition:: Content-Security-Policy (CSP)
This engine needs to allow images from the `data URLs`_ (prefixed with the
``data:` scheme).::
Header set Content-Security-Policy "img-src 'self' data: ;"
.. _Query Parameter Definitions:
https://developers.google.com/custom-search/docs/xml_results#WebSearch_Query_Parameter_Definitions
.. _data URLs:
https://developer.mozilla.org/en-US/docs/Web/HTTP/Basics_of_HTTP/Data_URIs
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"""
# pylint: disable=invalid-name, missing-function-docstring
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import re
from urllib.parse import urlencode, urlparse
from lxml import html
from searx import logger
from searx.exceptions import SearxEngineCaptchaException
from searx.utils import (
eval_xpath,
eval_xpath_list,
extract_text,
)
from searx.engines.google import (
get_lang_country,
google_domains,
time_range_dict,
filter_mapping,
results_xpath,
g_section_with_header,
title_xpath,
href_xpath,
content_xpath,
suggestion_xpath,
spelling_suggestion_xpath
)
# pylint: disable=unused-import
from searx.engines.google import (
supported_languages_url
, _fetch_supported_languages
)
# pylint: enable=unused-import
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# about
about = {
"website": 'https://www.google.com',
"wikidata_id": 'Q219885',
"official_api_documentation": 'https://developers.google.com/custom-search/',
"use_official_api": False,
"require_api_key": False,
"results": 'HTML',
"template": 'video.html',
"parse": ('url', 'title', 'content', 'thumbnail')
}
logger = logger.getChild('google video')
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# engine dependent config
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categories = ['videos']
paging = False
language_support = True
use_locale_domain = True
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time_range_support = True
safesearch = True
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RE_CACHE = {}
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def _re(regexpr):
"""returns compiled regular expression"""
RE_CACHE[regexpr] = RE_CACHE.get(regexpr, re.compile(regexpr))
return RE_CACHE[regexpr]
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def scrap_out_thumbs(dom):
"""Scrap out thumbnail data from <script> tags.
"""
ret_val = dict()
thumb_name = 'vidthumb'
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for script in eval_xpath(dom, '//script[contains(., "_setImagesSrc")]'):
_script = script.text
# var s='data:image/jpeg;base64, ...'
_imgdata = _re("s='([^']*)").findall( _script)
if not _imgdata:
continue
# var ii=['vidthumb4','vidthumb7']
for _vidthumb in _re(r"(%s\d+)" % thumb_name).findall(_script):
# At least the equal sign in the URL needs to be decoded
ret_val[_vidthumb] = _imgdata[0].replace(r"\x3d", "=")
# {google.ldidly=-1;google.ldi={"vidthumb8":"https://...
for script in eval_xpath(dom, '//script[contains(., "google.ldi={")]'):
_script = script.text
for key_val in _re(r'"%s\d+\":\"[^\"]*"' % thumb_name).findall( _script) :
match = _re(r'"(%s\d+)":"(.*)"' % thumb_name).search(key_val)
if match:
# At least the equal sign in the URL needs to be decoded
ret_val[match.group(1)] = match.group(2).replace(r"\u003d", "=")
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logger.debug("found %s imgdata for: %s", thumb_name, ret_val.keys())
return ret_val
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def request(query, params):
"""Google-Video search request"""
language, country, lang_country = get_lang_country(
# pylint: disable=undefined-variable
params, supported_languages, language_aliases
)
subdomain = 'www.' + google_domains.get(country.upper(), 'google.com')
query_url = 'https://'+ subdomain + '/search' + "?" + urlencode({
'q': query,
'tbm': "vid",
'hl': lang_country,
'lr': "lang_" + language,
'ie': "utf8",
'oe': "utf8",
})
if params['time_range'] in time_range_dict:
query_url += '&' + urlencode({'tbs': 'qdr:' + time_range_dict[params['time_range']]})
if params['safesearch']:
query_url += '&' + urlencode({'safe': filter_mapping[params['safesearch']]})
params['url'] = query_url
logger.debug("query_url --> %s", query_url)
# en-US,en;q=0.8,en;q=0.5
params['headers']['Accept-Language'] = (
"%s,%s;q=0.8,%s;q=0.5" % (lang_country, language, language))
logger.debug(
"HTTP Accept-Language --> %s", params['headers']['Accept-Language'])
params['headers']['Accept'] = (
'text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8'
)
#params['google_subdomain'] = subdomain
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return params
def response(resp):
"""Get response from google's search request"""
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results = []
# detect google sorry
resp_url = urlparse(resp.url)
if resp_url.netloc == 'sorry.google.com' or resp_url.path == '/sorry/IndexRedirect':
raise SearxEngineCaptchaException()
if resp_url.path.startswith('/sorry'):
raise SearxEngineCaptchaException()
# which subdomain ?
# subdomain = resp.search_params.get('google_subdomain')
# convert the text to dom
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dom = html.fromstring(resp.text)
vidthumb_imgdata = scrap_out_thumbs(dom)
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# parse results
for result in eval_xpath_list(dom, results_xpath):
# google *sections*
if extract_text(eval_xpath(result, g_section_with_header)):
logger.debug("ingoring <g-section-with-header>")
continue
title = extract_text(eval_xpath(result, title_xpath)[0])
url = eval_xpath(result, href_xpath)[0]
c_node = eval_xpath(result, content_xpath)[0]
# <img id="vidthumb1" ...>
img_id = eval_xpath(c_node, './div[1]//a/g-img/img/@id')
if not img_id:
continue
img_id = img_id[0]
img_src = vidthumb_imgdata.get(img_id, None)
if not img_src:
logger.error("no vidthumb imgdata for: %s" % img_id)
img_src = eval_xpath(c_node, './div[1]//a/g-img/img/@src')[0]
length = extract_text(eval_xpath(c_node, './/div[1]//a/div[3]'))
content = extract_text(eval_xpath(c_node, './/div[2]/span'))
pub_info = extract_text(eval_xpath(c_node, './/div[2]/div'))
results.append({
'url': url,
'title': title,
'content': content,
'length': length,
'author': pub_info,
'thumbnail': img_src,
'template': 'videos.html',
})
# parse suggestion
for suggestion in eval_xpath(dom, suggestion_xpath):
# append suggestion
results.append({'suggestion': extract_text(suggestion)})
for correction in eval_xpath(dom, spelling_suggestion_xpath):
results.append({'correction': extract_text(correction)})
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return results