# SPDX-License-Identifier: AGPL-3.0-or-later
# lint: pylint
"""This is the implementation of the google videos engine.
.. 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: ;"
.. _data URLs:
https://developer.mozilla.org/en-US/docs/Web/HTTP/Basics_of_HTTP/Data_URIs
"""
# pylint: disable=invalid-name
import re
from urllib.parse import urlencode
from lxml import html
from searx.utils import (
eval_xpath,
eval_xpath_list,
eval_xpath_getindex,
extract_text,
)
from searx.engines.google import (
get_lang_info,
time_range_dict,
filter_mapping,
g_section_with_header,
title_xpath,
suggestion_xpath,
detect_google_sorry,
)
# pylint: disable=unused-import
from searx.engines.google import supported_languages_url, _fetch_supported_languages
# pylint: enable=unused-import
# 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',
}
# engine dependent config
categories = ['videos', 'web']
paging = False
language_support = True
use_locale_domain = True
time_range_support = True
safesearch = True
RE_CACHE = {}
def _re(regexpr):
"""returns compiled regular expression"""
RE_CACHE[regexpr] = RE_CACHE.get(regexpr, re.compile(regexpr))
return RE_CACHE[regexpr]
def scrap_out_thumbs_src(dom):
ret_val = {}
thumb_name = 'dimg_'
for script in eval_xpath_list(dom, '//script[contains(., "google.ldi={")]'):
_script = script.text
# "dimg_35":"https://i.ytimg.c....",
_dimurl = _re("s='([^']*)").findall(_script)
for k, v in _re('(' + thumb_name + '[0-9]*)":"(http[^"]*)').findall(_script):
v = v.replace(r'\u003d', '=')
v = v.replace(r'\u0026', '&')
ret_val[k] = v
logger.debug("found %s imgdata for: %s", thumb_name, ret_val.keys())
return ret_val
[docs]def scrap_out_thumbs(dom):
"""Scrap out thumbnail data from <script> tags."""
ret_val = {}
thumb_name = 'dimg_'
for script in eval_xpath_list(dom, '//script[contains(., "_setImagesSrc")]'):
_script = script.text
# var s='data:image/jpeg;base64, ...'
_imgdata = _re("s='([^']*)").findall(_script)
if not _imgdata:
continue
# var ii=['dimg_17']
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", "=")
logger.debug("found %s imgdata for: %s", thumb_name, ret_val.keys())
return ret_val
[docs]def request(query, params):
"""Google-Video search request"""
lang_info = get_lang_info(params, supported_languages, language_aliases, False)
logger.debug("HTTP header Accept-Language --> %s", lang_info['headers']['Accept-Language'])
query_url = (
'https://'
+ lang_info['subdomain']
+ '/search'
+ "?"
+ urlencode(
{
'q': query,
'tbm': "vid",
**lang_info['params'],
'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
params['headers'].update(lang_info['headers'])
params['headers']['Accept'] = 'text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8'
return params
[docs]def response(resp):
"""Get response from google's search request"""
results = []
detect_google_sorry(resp)
# convert the text to dom
dom = html.fromstring(resp.text)
vidthumb_imgdata = scrap_out_thumbs(dom)
thumbs_src = scrap_out_thumbs_src(dom)
logger.debug(str(thumbs_src))
# parse results
for result in eval_xpath_list(dom, '//div[contains(@class, "g ")]'):
# ignore google *sections*
if extract_text(eval_xpath(result, g_section_with_header)):
logger.debug("ingoring <g-section-with-header>")
continue
# ingnore articles without an image id / e.g. news articles
img_id = eval_xpath_getindex(result, './/g-img/img/@id', 0, default=None)
if img_id is None:
logger.error("no img_id found in item %s (news article?)", len(results) + 1)
continue
img_src = vidthumb_imgdata.get(img_id, None)
if not img_src:
img_src = thumbs_src.get(img_id, "")
title = extract_text(eval_xpath_getindex(result, title_xpath, 0))
url = eval_xpath_getindex(result, './/div[@class="dXiKIc"]//a/@href', 0)
length = extract_text(eval_xpath(result, './/div[contains(@class, "P7xzyf")]/span/span'))
c_node = eval_xpath_getindex(result, './/div[@class="Uroaid"]', 0)
content = extract_text(c_node)
pub_info = extract_text(eval_xpath(result, './/div[@class="Zg1NU"]'))
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_list(dom, suggestion_xpath):
# append suggestion
results.append({'suggestion': extract_text(suggestion)})
return results
