mirror of
https://github.com/searxng/searxng.git
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[fix] revise of the google-Video engine
This revise is based on the methods developed in the revise of the google engine
(see commit 410c2f9).
Signed-off-by: Markus Heiser <markus.heiser@darmarit.de>
This commit is contained in:
Markus Heiser
parent
f4a17acb7a
commit
89b3050b5c
2 changed files with 184 additions and 59 deletions
3
Makefile
3
Makefile
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@ -179,7 +179,8 @@ PYLINT_FILES=\
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searx/engines/deviantart.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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searx/engines/google_news.py \
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searx/engines/google_videos.py
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test.pylint: pyenvinstall
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$(call cmd,pylint,$(PYLINT_FILES))
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@ -1,13 +1,58 @@
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# SPDX-License-Identifier: AGPL-3.0-or-later
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"""
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Google (Videos)
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Google (Viedo)
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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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.. _admonition:: Content-Security-Policy (CSP)
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This engine needs to allow images from the `data URLs`_ (prefixed with the
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``data:` scheme).::
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Header set Content-Security-Policy "img-src 'self' data: ;"
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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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.. _data URLs:
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https://developer.mozilla.org/en-US/docs/Web/HTTP/Basics_of_HTTP/Data_URIs
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"""
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from datetime import date, timedelta
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from urllib.parse import urlencode
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from lxml import html
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from searx.utils import extract_text, eval_xpath, eval_xpath_list, eval_xpath_getindex
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# pylint: disable=invalid-name, missing-function-docstring
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import re
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from urllib.parse import urlencode, urlparse
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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 (
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eval_xpath,
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eval_xpath_list,
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extract_text,
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)
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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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filter_mapping,
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results_xpath,
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g_section_with_header,
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title_xpath,
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href_xpath,
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content_xpath,
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suggestion_xpath,
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spelling_suggestion_xpath
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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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# about
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about = {
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@ -17,83 +62,162 @@ about = {
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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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"template": 'video.html',
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"parse": ('url', 'title', 'content', 'thumbnail')
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}
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logger = logger.getChild('google video')
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# engine dependent config
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categories = ['videos']
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paging = True
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safesearch = True
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paging = False
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language_support = 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
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search_url = 'https://www.google.com/search'\
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'?q={query}'\
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'&tbm=vid'\
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'&{search_options}'
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time_range_attr = "qdr:{range}"
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time_range_custom_attr = "cdr:1,cd_min:{start},cd_max{end}"
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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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RE_CACHE = {}
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def _re(regexpr):
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"""returns compiled regular expression"""
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RE_CACHE[regexpr] = RE_CACHE.get(regexpr, re.compile(regexpr))
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return RE_CACHE[regexpr]
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def scrap_out_thumbs(dom):
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"""Scrap out thumbnail data from <script> tags.
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"""
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ret_val = dict()
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thumb_name = 'vidthumb'
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for script in eval_xpath(dom, '//script[contains(., "_setImagesSrc")]'):
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_script = script.text
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# var s='data:image/jpeg;base64, ...'
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_imgdata = _re("s='([^']*)").findall( _script)
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if not _imgdata:
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continue
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# var ii=['vidthumb4','vidthumb7']
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for _vidthumb in _re(r"(%s\d+)" % thumb_name).findall(_script):
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# At least the equal sign in the URL needs to be decoded
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ret_val[_vidthumb] = _imgdata[0].replace(r"\x3d", "=")
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# {google.ldidly=-1;google.ldi={"vidthumb8":"https://...
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for script in eval_xpath(dom, '//script[contains(., "google.ldi={")]'):
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_script = script.text
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for key_val in _re(r'"%s\d+\":\"[^\"]*"' % thumb_name).findall( _script) :
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match = _re(r'"(%s\d+)":"(.*)"' % thumb_name).search(key_val)
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if match:
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# At least the equal sign in the URL needs to be decoded
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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())
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return ret_val
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# do search-request
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def request(query, params):
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search_options = {
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'ijn': params['pageno'] - 1,
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'start': (params['pageno'] - 1) * number_of_results
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}
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"""Google-Video search request"""
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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 = 'www.' + google_domains.get(country.upper(), 'google.com')
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query_url = 'https://'+ subdomain + '/search' + "?" + urlencode({
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'q': query,
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'tbm': "vid",
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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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})
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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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elif params['time_range'] == 'year':
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now = date.today()
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then = now - timedelta(days=365)
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start = then.strftime('%m/%d/%Y')
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end = now.strftime('%m/%d/%Y')
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search_options['tbs'] = time_range_custom_attr.format(start=start, end=end)
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query_url += '&' + urlencode({'tbs': 'qdr:' + time_range_dict[params['time_range']]})
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if params['safesearch']:
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query_url += '&' + urlencode({'safe': filter_mapping[params['safesearch']]})
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if safesearch and params['safesearch']:
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search_options['safe'] = 'on'
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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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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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"%s,%s;q=0.8,%s;q=0.5" % (lang_country, language, language))
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logger.debug(
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"HTTP Accept-Language --> %s", 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
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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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# convert the text to dom
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dom = html.fromstring(resp.text)
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vidthumb_imgdata = scrap_out_thumbs(dom)
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# parse results
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for result in eval_xpath_list(dom, '//div[@class="g"]'):
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for result in eval_xpath_list(dom, results_xpath):
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title = extract_text(eval_xpath(result, './/h3'))
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url = eval_xpath_getindex(result, './/div[@class="r"]/a/@href', 0)
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content = extract_text(eval_xpath(result, './/span[@class="st"]'))
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# google *sections*
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if extract_text(eval_xpath(result, g_section_with_header)):
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logger.debug("ingoring <g-section-with-header>")
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continue
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# get thumbnails
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script = str(dom.xpath('//script[contains(., "_setImagesSrc")]')[0].text)
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ids = result.xpath('.//div[@class="s"]//img/@id')
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if len(ids) > 0:
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thumbnails_data = \
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re.findall('s=\'(.*?)(?:\\\\[a-z,1-9,\\\\]+\'|\')\;var ii=\[(?:|[\'vidthumb\d+\',]+)\'' + ids[0],
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script)
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tmp = []
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if len(thumbnails_data) != 0:
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tmp = re.findall('(data:image/jpeg;base64,[a-z,A-Z,0-9,/,\+]+)', thumbnails_data[0])
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thumbnail = ''
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if len(tmp) != 0:
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thumbnail = tmp[-1]
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title = extract_text(eval_xpath(result, title_xpath)[0])
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url = eval_xpath(result, href_xpath)[0]
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c_node = eval_xpath(result, content_xpath)[0]
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# append result
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results.append({'url': url,
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'title': title,
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'content': content,
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'thumbnail': thumbnail,
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'template': 'videos.html'})
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# <img id="vidthumb1" ...>
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img_id = eval_xpath(c_node, './div[1]//a/g-img/img/@id')
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if not img_id:
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continue
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img_id = img_id[0]
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img_src = vidthumb_imgdata.get(img_id, None)
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if not img_src:
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logger.error("no vidthumb imgdata for: %s" % img_id)
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img_src = eval_xpath(c_node, './div[1]//a/g-img/img/@src')[0]
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duration = extract_text(eval_xpath(c_node, './div[1]//a/span'))
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content = extract_text(eval_xpath(c_node, './div[2]/span'))
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pub_info = extract_text(eval_xpath(c_node, './div[2]/div'))
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if len(duration) > 3:
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content = duration + " - " + content
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if pub_info:
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content = content + " (%s)" % pub_info
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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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'thumbnail': img_src,
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'template': 'videos.html',
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})
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# parse suggestion
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for suggestion in eval_xpath(dom, suggestion_xpath):
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# append suggestion
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results.append({'suggestion': extract_text(suggestion)})
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for correction in eval_xpath(dom, spelling_suggestion_xpath):
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results.append({'correction': extract_text(correction)})
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return results
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