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https://github.com/searxng/searxng.git
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3038052c79
use from searx.engines.duckduckgo import _fetch_supported_languages, supported_languages_url # NOQA so it is possible to easily remove all unused import using autoflake: autoflake --in-place --recursive --remove-all-unused-imports searx tests
222 lines
7.4 KiB
Python
222 lines
7.4 KiB
Python
# SPDX-License-Identifier: AGPL-3.0-or-later
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"""Google (Images)
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:website: https://images.google.com (redirected to subdomain www.)
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:provide-api: yes (https://developers.google.com/custom-search/)
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:using-api: not the offical, since it needs registration to another service
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:results: HTML
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:stable: no
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:template: images.html
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:parse: url, title, content, source, thumbnail_src, img_src
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For detailed description of the *REST-full* API see: `Query Parameter
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Definitions`_.
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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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"""
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from urllib.parse import urlencode, urlparse, unquote
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from lxml import html
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from flask_babel import gettext
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from searx import logger
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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
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# pylint: disable=unused-import
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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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google_domains,
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time_range_dict,
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)
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logger = logger.getChild('google images')
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# engine dependent config
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categories = ['images']
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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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safesearch = True
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filter_mapping = {
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0: 'images',
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1: 'active',
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2: 'active'
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}
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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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for script in eval_xpath(dom, '//script[contains(., "_setImgSrc(")]'):
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_script = script.text
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# _setImgSrc('0','data:image\/jpeg;base64,\/9j\/4AAQSkZJR ....');
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_thumb_no, _img_data = _script[len("_setImgSrc("):-2].split(",", 1)
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_thumb_no = _thumb_no.replace("'", "")
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_img_data = _img_data.replace("'", "")
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_img_data = _img_data.replace(r"\/", r"/")
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ret_val[_thumb_no] = _img_data.replace(r"\x3d", "=")
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return ret_val
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def scrap_img_by_id(script, data_id):
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"""Get full image URL by data-id in parent element
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"""
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img_url = ''
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_script = script.split('\n')
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for i, line in enumerate(_script):
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if 'gstatic.com/images' in line and data_id in line:
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url_line = _script[i + 1]
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img_url = url_line.split('"')[1]
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img_url = unquote(img_url.replace(r'\u00', r'%'))
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return img_url
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def request(query, params):
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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': "isch",
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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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'num': 30,
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})
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if params['time_range'] in time_range_dict:
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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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params['url'] = query_url
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logger.debug("query_url --> %s", query_url)
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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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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 RuntimeWarning('sorry.google.com')
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if resp_url.path.startswith('/sorry'):
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raise RuntimeWarning(gettext('CAPTCHA required'))
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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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img_bas64_map = scrap_out_thumbs(dom)
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img_src_script = eval_xpath(dom, '//script[contains(., "AF_initDataCallback({key: ")]')[1].text
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# parse results
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#
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# root element::
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# <div id="islmp" ..>
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# result div per image::
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# <div jsmodel="tTXmib"> / <div jsaction="..." data-id="..."
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# The data-id matches to a item in a json-data structure in::
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# <script nonce="I+vqelcy/01CKiBJi5Z1Ow">AF_initDataCallback({key: 'ds:1', ... data:function(){return [ ...
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# In this structure the link to the origin PNG, JPG or whatever is given
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# first link per image-div contains a <img> with the data-iid for bas64 encoded image data::
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# <img class="rg_i Q4LuWd" data-iid="0"
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# second link per image-div is the target link::
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# <a class="VFACy kGQAp" href="https://en.wikipedia.org/wiki/The_Sacrament_of_the_Last_Supper">
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# the second link also contains two div tags with the *description* and *publisher*::
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# <div class="WGvvNb">The Sacrament of the Last Supper ...</div>
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# <div class="fxgdke">en.wikipedia.org</div>
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root = eval_xpath(dom, '//div[@id="islmp"]')
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if not root:
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logger.error("did not find root element id='islmp'")
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return results
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root = root[0]
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for img_node in eval_xpath(root, './/img[contains(@class, "rg_i")]'):
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try:
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img_alt = eval_xpath(img_node, '@alt')[0]
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img_base64_id = eval_xpath(img_node, '@data-iid')
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if img_base64_id:
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img_base64_id = img_base64_id[0]
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thumbnail_src = img_bas64_map[img_base64_id]
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else:
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thumbnail_src = eval_xpath(img_node, '@src')
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if not thumbnail_src:
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thumbnail_src = eval_xpath(img_node, '@data-src')
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if thumbnail_src:
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thumbnail_src = thumbnail_src[0]
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else:
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thumbnail_src = ''
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link_node = eval_xpath(img_node, '../../../a[2]')[0]
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url = eval_xpath(link_node, '@href')[0]
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pub_nodes = eval_xpath(link_node, './div/div')
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pub_descr = img_alt
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pub_source = ''
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if pub_nodes:
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pub_descr = extract_text(pub_nodes[0])
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pub_source = extract_text(pub_nodes[1])
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img_src_id = eval_xpath(img_node, '../../../@data-id')[0]
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src_url = scrap_img_by_id(img_src_script, img_src_id)
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if not src_url:
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src_url = thumbnail_src
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results.append({
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'url': url,
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'title': img_alt,
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'content': pub_descr,
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'source': pub_source,
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'img_src': src_url,
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# 'img_format': img_format,
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'thumbnail_src': thumbnail_src,
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'template': 'images.html'
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})
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except Exception as e: # pylint: disable=broad-except
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logger.error(e, exc_info=True)
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# from lxml import etree
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# logger.debug(etree.tostring(img_node, pretty_print=True))
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# import pdb
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# pdb.set_trace()
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continue
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return results
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