mirror of
https://github.com/searxng/searxng.git
synced 2024-12-23 17:50:29 +00:00
Markus Heiser
Adam Tauber
parent
3227695b0b
commit
410c2f903d
1 changed files with 207 additions and 311 deletions
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@ -1,210 +1,207 @@
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# Google (Web)
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#
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# @website https://www.google.com
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# @provide-api yes (https://developers.google.com/custom-search/)
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#
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# @using-api no
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# @results HTML
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# @stable no (HTML can change)
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# @parse url, title, content, suggestion
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# SPDX-License-Identifier: AGPL-3.0-or-later
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"""Google (Web)
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import re
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:website: https://www.google.com
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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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:parse: url, title, content, number_of_results, answer, suggestion, correction
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For detailed description of the *REST-full* API see: `Query Parameter
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Definitions`_.
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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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# pylint: disable=invalid-name, missing-function-docstring
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from lxml import html
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from flask_babel import gettext
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from lxml import html, etree
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from searx.engines.xpath import extract_text, extract_url
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from searx.engines.xpath import extract_text
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from searx import logger
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from searx.url_utils import urlencode, urlparse, parse_qsl
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from searx.url_utils import urlencode, urlparse
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from searx.utils import match_language, eval_xpath
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logger = logger.getChild('google engine')
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# engine dependent config
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categories = ['general']
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paging = True
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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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# based on https://en.wikipedia.org/wiki/List_of_Google_domains and tests
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default_hostname = 'www.google.com'
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country_to_hostname = {
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'BG': 'www.google.bg', # Bulgaria
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'CZ': 'www.google.cz', # Czech Republic
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'DE': 'www.google.de', # Germany
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'DK': 'www.google.dk', # Denmark
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'AT': 'www.google.at', # Austria
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'CH': 'www.google.ch', # Switzerland
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'GR': 'www.google.gr', # Greece
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'AU': 'www.google.com.au', # Australia
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'CA': 'www.google.ca', # Canada
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'GB': 'www.google.co.uk', # United Kingdom
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'ID': 'www.google.co.id', # Indonesia
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'IE': 'www.google.ie', # Ireland
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'IN': 'www.google.co.in', # India
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'MY': 'www.google.com.my', # Malaysia
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'NZ': 'www.google.co.nz', # New Zealand
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'PH': 'www.google.com.ph', # Philippines
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'SG': 'www.google.com.sg', # Singapore
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# 'US': 'www.google.us', # United States, redirect to .com
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'ZA': 'www.google.co.za', # South Africa
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'AR': 'www.google.com.ar', # Argentina
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'CL': 'www.google.cl', # Chile
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'ES': 'www.google.es', # Spain
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'MX': 'www.google.com.mx', # Mexico
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'EE': 'www.google.ee', # Estonia
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'FI': 'www.google.fi', # Finland
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'BE': 'www.google.be', # Belgium
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'FR': 'www.google.fr', # France
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'IL': 'www.google.co.il', # Israel
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'HR': 'www.google.hr', # Croatia
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'HU': 'www.google.hu', # Hungary
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'IT': 'www.google.it', # Italy
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'JP': 'www.google.co.jp', # Japan
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'KR': 'www.google.co.kr', # South Korea
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'LT': 'www.google.lt', # Lithuania
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'LV': 'www.google.lv', # Latvia
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'NO': 'www.google.no', # Norway
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'NL': 'www.google.nl', # Netherlands
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'PL': 'www.google.pl', # Poland
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'BR': 'www.google.com.br', # Brazil
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'PT': 'www.google.pt', # Portugal
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'RO': 'www.google.ro', # Romania
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'RU': 'www.google.ru', # Russia
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'SK': 'www.google.sk', # Slovakia
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'SI': 'www.google.si', # Slovenia
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'SE': 'www.google.se', # Sweden
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'TH': 'www.google.co.th', # Thailand
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'TR': 'www.google.com.tr', # Turkey
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'UA': 'www.google.com.ua', # Ukraine
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# 'CN': 'www.google.cn', # China, only from China ?
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'HK': 'www.google.com.hk', # Hong Kong
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'TW': 'www.google.com.tw' # Taiwan
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}
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# osm
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url_map = 'https://www.openstreetmap.org/'\
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+ '?lat={latitude}&lon={longitude}&zoom={zoom}&layers=M'
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# search-url
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search_path = '/search'
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search_url = ('https://{hostname}' +
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search_path +
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'?{query}&start={offset}&gws_rd=cr&gbv=1&lr={lang}&hl={lang_short}&ei=x')
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time_range_search = "&tbs=qdr:{range}"
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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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'year': 'y'}
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# other URLs
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map_hostname_start = 'maps.google.'
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maps_path = '/maps'
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redirect_path = '/url'
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images_path = '/images'
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safesearch = True
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supported_languages_url = 'https://www.google.com/preferences?#languages'
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# based on https://en.wikipedia.org/wiki/List_of_Google_domains and tests
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google_domains = {
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'BG': 'google.bg', # Bulgaria
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'CZ': 'google.cz', # Czech Republic
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'DE': 'google.de', # Germany
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'DK': 'google.dk', # Denmark
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'AT': 'google.at', # Austria
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'CH': 'google.ch', # Switzerland
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'GR': 'google.gr', # Greece
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'AU': 'google.com.au', # Australia
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'CA': 'google.ca', # Canada
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'GB': 'google.co.uk', # United Kingdom
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'ID': 'google.co.id', # Indonesia
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'IE': 'google.ie', # Ireland
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'IN': 'google.co.in', # India
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'MY': 'google.com.my', # Malaysia
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'NZ': 'google.co.nz', # New Zealand
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'PH': 'google.com.ph', # Philippines
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'SG': 'google.com.sg', # Singapore
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# 'US': 'google.us', # United States, redirect to .com
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'ZA': 'google.co.za', # South Africa
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'AR': 'google.com.ar', # Argentina
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'CL': 'google.cl', # Chile
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'ES': 'google.es', # Spain
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'MX': 'google.com.mx', # Mexico
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'EE': 'google.ee', # Estonia
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'FI': 'google.fi', # Finland
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'BE': 'google.be', # Belgium
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'FR': 'google.fr', # France
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'IL': 'google.co.il', # Israel
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'HR': 'google.hr', # Croatia
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'HU': 'google.hu', # Hungary
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'IT': 'google.it', # Italy
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'JP': 'google.co.jp', # Japan
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'KR': 'google.co.kr', # South Korea
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'LT': 'google.lt', # Lithuania
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'LV': 'google.lv', # Latvia
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'NO': 'google.no', # Norway
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'NL': 'google.nl', # Netherlands
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'PL': 'google.pl', # Poland
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'BR': 'google.com.br', # Brazil
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'PT': 'google.pt', # Portugal
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'RO': 'google.ro', # Romania
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'RU': 'google.ru', # Russia
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'SK': 'google.sk', # Slovakia
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'SI': 'google.si', # Slovenia
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'SE': 'google.se', # Sweden
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'TH': 'google.co.th', # Thailand
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'TR': 'google.com.tr', # Turkey
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'UA': 'google.com.ua', # Ukraine
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# 'CN': 'google.cn', # China, only from China ?
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'HK': 'google.com.hk', # Hong Kong
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'TW': 'google.com.tw' # Taiwan
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}
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time_range_dict = {
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'day': 'd',
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'week': 'w',
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'month': 'm',
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'year': 'y'
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}
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# Filter results. 0: None, 1: Moderate, 2: Strict
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filter_mapping = {
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0 : 'off',
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1 : 'medium',
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2 : 'high'
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}
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# specific xpath variables
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results_xpath = '//div[contains(@class, "ZINbbc")]'
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url_xpath = './/div[@class="kCrYT"][1]/a/@href'
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title_xpath = './/div[@class="kCrYT"][1]/a/div[1]'
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content_xpath = './/div[@class="kCrYT"][2]//div[contains(@class, "BNeawe")]//div[contains(@class, "BNeawe")]'
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suggestion_xpath = '//div[contains(@class, "ZINbbc")][last()]//div[@class="rVLSBd"]/a//div[contains(@class, "BNeawe")]'
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spelling_suggestion_xpath = '//div[@id="scc"]//a'
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# ------------------------
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# map : detail location
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map_address_xpath = './/div[@class="s"]//table//td[2]/span/text()'
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map_phone_xpath = './/div[@class="s"]//table//td[2]/span/span'
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map_website_url_xpath = 'h3[2]/a/@href'
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map_website_title_xpath = 'h3[2]'
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# google results are grouped into <div class="g" ../>
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results_xpath = '//div[@class="g"]'
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# map : near the location
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map_near = 'table[@class="ts"]//tr'
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map_near_title = './/h4'
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map_near_url = './/h4/a/@href'
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map_near_phone = './/span[@class="nobr"]'
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# google *sections* are no usual *results*, we ignore them
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g_section_with_header='./g-section-with-header'
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# images
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images_xpath = './/div/a'
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image_url_xpath = './@href'
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image_img_src_xpath = './img/@src'
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# the title is a h3 tag relative to the result group
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title_xpath = './/h3[1]'
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# property names
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# FIXME : no translation
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property_address = "Address"
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property_phone = "Phone number"
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# in the result group there is <div class="r" ../> it's first child is a <a
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# href=...> (on some results, the <a> is the first "descendant", not ""child")
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href_xpath = './/div[@class="r"]//a/@href'
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# in the result group there is <div class="s" ../> containing he *content*
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content_xpath = './/div[@class="s"]'
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# remove google-specific tracking-url
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def parse_url(url_string, google_hostname):
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# sanity check
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if url_string is None:
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return url_string
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# Suggestions are links placed in a *card-section*, we extract only the text
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# from the links not the links itself.
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suggestion_xpath = '//div[contains(@class, "card-section")]//a'
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# normal case
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parsed_url = urlparse(url_string)
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if (parsed_url.netloc in [google_hostname, '']
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and parsed_url.path == redirect_path):
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query = dict(parse_qsl(parsed_url.query))
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return query['q']
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else:
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return url_string
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# Since google does *auto-correction* on the first query these are not really
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# *spelling suggestions*, we use them anyway.
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spelling_suggestion_xpath = '//div[@class="med"]/p/a'
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# returns extract_text on the first result selected by the xpath or None
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def extract_text_from_dom(result, xpath):
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"""returns extract_text on the first result selected by the xpath or None"""
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r = eval_xpath(result, xpath)
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if len(r) > 0:
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return extract_text(r[0])
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return None
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# do search-request
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def request(query, params):
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offset = (params['pageno'] - 1) * 10
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if params['language'] == 'all' or params['language'] == 'en-US':
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language = 'en-GB'
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else:
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language = match_language(params['language'], supported_languages, language_aliases)
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def get_lang_country(params, lang_list, custom_aliases):
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"""Returns a tuple with *langauage* on its first and *country* on its second
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position."""
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language = params['language']
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if language == 'all':
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language = 'en-US'
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language_array = language.split('-')
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if params['language'].find('-') > 0:
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country = params['language'].split('-')[1]
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elif len(language_array) == 2:
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if len(language_array) == 2:
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country = language_array[1]
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else:
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country = 'US'
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country = language_array[0].upper()
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url_lang = 'lang_' + language
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language = match_language(language, lang_list, custom_aliases)
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lang_country = '%s-%s' % (language, country)
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if lang_country == 'en-EN':
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lang_country = 'en'
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if use_locale_domain:
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google_hostname = country_to_hostname.get(country.upper(), default_hostname)
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else:
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google_hostname = default_hostname
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return language, country, lang_country
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def request(query, params):
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"""Google search request"""
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offset = (params['pageno'] - 1) * 10
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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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# https://www.google.de/search?q=corona&hl=de-DE&lr=lang_de&start=0&tbs=qdr%3Ad&safe=medium
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query_url = 'https://'+ subdomain + '/search' + "?" + urlencode({
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'q': query,
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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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'start': offset,
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})
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# original format: ID=3e2b6616cee08557:TM=5556667580:C=r:IP=4.1.12.5-:S=23ASdf0soFgF2d34dfgf-_22JJOmHdfgg
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params['cookies']['GOOGLE_ABUSE_EXEMPTION'] = 'x'
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params['url'] = search_url.format(offset=offset,
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query=urlencode({'q': query}),
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hostname=google_hostname,
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lang=url_lang,
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lang_short=language)
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if params['time_range'] in time_range_dict:
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params['url'] += time_range_search.format(range=time_range_dict[params['time_range']])
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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['headers']['Accept-Language'] = language + ',' + language + '-' + country
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params['headers']['Accept'] = 'text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8'
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params['url'] = query_url
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logger.debug("query_url --> %s", query_url)
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params['google_hostname'] = google_hostname
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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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lang_country + ',' + language + ';q=0.8,' + language + ';q=0.5'
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)
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logger.debug("HTTP header Accept-Language --> %s",
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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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@ -215,68 +212,53 @@ def response(resp):
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if resp_url.path.startswith('/sorry'):
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raise RuntimeWarning(gettext('CAPTCHA required'))
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# which hostname ?
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google_hostname = resp.search_params.get('google_hostname')
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google_url = "https://" + google_hostname
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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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instant_answer = eval_xpath(dom, '//div[@id="_vBb"]//text()')
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if instant_answer:
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results.append({'answer': u' '.join(instant_answer)})
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# results --> answer
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answer = eval_xpath(dom, '//div[contains(@class, "LGOjhe")]//text()')
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if answer:
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results.append({'answer': ' '.join(answer)})
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else:
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logger.debug("did not found 'answer'")
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# results --> number_of_results
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try:
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results_num = int(eval_xpath(dom, '//div[@id="resultStats"]//text()')[0]
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.split()[1].replace(',', ''))
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results.append({'number_of_results': results_num})
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except:
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pass
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_txt = eval_xpath(dom, '//div[@id="result-stats"]//text()')[0]
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_digit = ''.join([n for n in _txt if n.isdigit()])
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number_of_results = int(_digit)
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results.append({'number_of_results': number_of_results})
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except Exception as e: # pylint: disable=broad-except
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logger.debug("did not 'number_of_results'")
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logger.error(e, exc_info=True)
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# parse results
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for result in eval_xpath(dom, results_xpath):
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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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try:
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title = extract_text(eval_xpath(result, title_xpath)[0])
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url = parse_url(extract_url(eval_xpath(result, url_xpath), google_url), google_hostname)
|
||||
parsed_url = urlparse(url, google_hostname)
|
||||
|
||||
# map result
|
||||
if parsed_url.netloc == google_hostname:
|
||||
# TODO fix inside links
|
||||
continue
|
||||
# if parsed_url.path.startswith(maps_path) or parsed_url.netloc.startswith(map_hostname_start):
|
||||
# print "yooooo"*30
|
||||
# x = eval_xpath(result, map_near)
|
||||
# if len(x) > 0:
|
||||
# # map : near the location
|
||||
# results = results + parse_map_near(parsed_url, x, google_hostname)
|
||||
# else:
|
||||
# # map : detail about a location
|
||||
# results = results + parse_map_detail(parsed_url, result, google_hostname)
|
||||
# # google news
|
||||
# elif parsed_url.path == search_path:
|
||||
# # skipping news results
|
||||
# pass
|
||||
|
||||
# # images result
|
||||
# elif parsed_url.path == images_path:
|
||||
# # only thumbnail image provided,
|
||||
# # so skipping image results
|
||||
# # results = results + parse_images(result, google_hostname)
|
||||
# pass
|
||||
|
||||
else:
|
||||
# normal result
|
||||
content = extract_text_from_dom(result, content_xpath)
|
||||
if content is None:
|
||||
continue
|
||||
|
||||
# append result
|
||||
results.append({'url': url,
|
||||
'title': title,
|
||||
'content': content
|
||||
})
|
||||
except:
|
||||
logger.debug('result parse error in:\n%s', etree.tostring(result, pretty_print=True))
|
||||
url = eval_xpath(result, href_xpath)[0]
|
||||
content = extract_text_from_dom(result, content_xpath)
|
||||
results.append({
|
||||
'url': url,
|
||||
'title': title,
|
||||
'content': content
|
||||
})
|
||||
except Exception as e: # pylint: disable=broad-except
|
||||
logger.error(e, exc_info=True)
|
||||
#from lxml import etree
|
||||
#logger.debug(etree.tostring(result, pretty_print=True))
|
||||
#import pdb
|
||||
#pdb.set_trace()
|
||||
continue
|
||||
|
||||
# parse suggestion
|
||||
|
|
@ -290,102 +272,16 @@ def response(resp):
|
|||
# return results
|
||||
return results
|
||||
|
||||
|
||||
def parse_images(result, google_hostname):
|
||||
results = []
|
||||
for image in eval_xpath(result, images_xpath):
|
||||
url = parse_url(extract_text(eval_xpath(image, image_url_xpath)[0]), google_hostname)
|
||||
img_src = extract_text(eval_xpath(image, image_img_src_xpath)[0])
|
||||
|
||||
# append result
|
||||
results.append({'url': url,
|
||||
'title': '',
|
||||
'content': '',
|
||||
'img_src': img_src,
|
||||
'template': 'images.html'
|
||||
})
|
||||
|
||||
return results
|
||||
|
||||
|
||||
def parse_map_near(parsed_url, x, google_hostname):
|
||||
results = []
|
||||
|
||||
for result in x:
|
||||
title = extract_text_from_dom(result, map_near_title)
|
||||
url = parse_url(extract_text_from_dom(result, map_near_url), google_hostname)
|
||||
attributes = []
|
||||
phone = extract_text_from_dom(result, map_near_phone)
|
||||
add_attributes(attributes, property_phone, phone, 'tel:' + phone)
|
||||
results.append({'title': title,
|
||||
'url': url,
|
||||
'content': attributes_to_html(attributes)
|
||||
})
|
||||
|
||||
return results
|
||||
|
||||
|
||||
def parse_map_detail(parsed_url, result, google_hostname):
|
||||
results = []
|
||||
|
||||
# try to parse the geoloc
|
||||
m = re.search(r'@([0-9\.]+),([0-9\.]+),([0-9]+)', parsed_url.path)
|
||||
if m is None:
|
||||
m = re.search(r'll\=([0-9\.]+),([0-9\.]+)\&z\=([0-9]+)', parsed_url.query)
|
||||
|
||||
if m is not None:
|
||||
# geoloc found (ignored)
|
||||
lon = float(m.group(2)) # noqa
|
||||
lat = float(m.group(1)) # noqa
|
||||
zoom = int(m.group(3)) # noqa
|
||||
|
||||
# attributes
|
||||
attributes = []
|
||||
address = extract_text_from_dom(result, map_address_xpath)
|
||||
phone = extract_text_from_dom(result, map_phone_xpath)
|
||||
add_attributes(attributes, property_address, address, 'geo:' + str(lat) + ',' + str(lon))
|
||||
add_attributes(attributes, property_phone, phone, 'tel:' + phone)
|
||||
|
||||
# title / content / url
|
||||
website_title = extract_text_from_dom(result, map_website_title_xpath)
|
||||
content = extract_text_from_dom(result, content_xpath)
|
||||
website_url = parse_url(extract_text_from_dom(result, map_website_url_xpath), google_hostname)
|
||||
|
||||
# add a result if there is a website
|
||||
if website_url is not None:
|
||||
results.append({'title': website_title,
|
||||
'content': (content + '<br />' if content is not None else '')
|
||||
+ attributes_to_html(attributes),
|
||||
'url': website_url
|
||||
})
|
||||
|
||||
return results
|
||||
|
||||
|
||||
def add_attributes(attributes, name, value, url):
|
||||
if value is not None and len(value) > 0:
|
||||
attributes.append({'label': name, 'value': value, 'url': url})
|
||||
|
||||
|
||||
def attributes_to_html(attributes):
|
||||
retval = '<table class="table table-striped">'
|
||||
for a in attributes:
|
||||
value = a.get('value')
|
||||
if 'url' in a:
|
||||
value = '<a href="' + a.get('url') + '">' + value + '</a>'
|
||||
retval = retval + '<tr><th>' + a.get('label') + '</th><td>' + value + '</td></tr>'
|
||||
retval = retval + '</table>'
|
||||
return retval
|
||||
|
||||
|
||||
# get supported languages from their site
|
||||
def _fetch_supported_languages(resp):
|
||||
supported_languages = {}
|
||||
ret_val = {}
|
||||
dom = html.fromstring(resp.text)
|
||||
options = eval_xpath(dom, '//*[@id="langSec"]//input[@name="lr"]')
|
||||
for option in options:
|
||||
code = eval_xpath(option, './@value')[0].split('_')[-1]
|
||||
name = eval_xpath(option, './@data-name')[0].title()
|
||||
supported_languages[code] = {"name": name}
|
||||
|
||||
return supported_languages
|
||||
radio_buttons = eval_xpath(dom, '//*[@id="langSec"]//input[@name="lang"]')
|
||||
|
||||
for x in radio_buttons:
|
||||
name = x.get("data-name")
|
||||
code = x.get("value")
|
||||
ret_val[code] = {"name": name}
|
||||
|
||||
return ret_val
|
||||
|
|
|
|||
Loading…
Reference in a new issue