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134 lines
3.8 KiB
Python
134 lines
3.8 KiB
Python
from bs4 import BeautifulSoup
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import os
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import urllib.parse as urlparse
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from urllib.parse import parse_qs
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SKIP_ARGS = ['ref_src', 'utm']
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SKIP_PREFIX = ['//www.', '//mobile.', '//m.']
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GOOG_STATIC = 'www.gstatic.com'
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GOOG_IMG = '/images/branding/searchlogo/1x/googlelogo'
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LOGO_URL = GOOG_IMG + '_desk'
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BLANK_B64 = ('data:image/png;base64,'
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'iVBORw0KGgoAAAANSUhEUgAAAAoAAAAKCAQAAAAnOwc2AAAAD0lEQVR42mNkw'
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'AIYh7IgAAVVAAuInjI5AAAAAElFTkSuQmCC')
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# Ad keywords
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BLACKLIST = [
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'ad', 'anuncio', 'annuncio', 'annonce', 'Anzeige', '广告', '廣告', 'Reklama',
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'Реклама', 'Anunț', '광고', 'annons', 'Annonse', 'Iklan', '広告', 'Augl.',
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'Mainos', 'Advertentie', 'إعلان', 'Գովազդ', 'विज्ञापन', 'Reklam', 'آگهی',
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'Reklāma', 'Reklaam', 'Διαφήμιση', 'מודעה', 'Hirdetés', 'Anúncio'
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]
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SITE_ALTS = {
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'twitter.com': os.getenv('WHOOGLE_ALT_TW', 'nitter.net'),
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'youtube.com': os.getenv('WHOOGLE_ALT_YT', 'invidious.snopyta.org'),
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'instagram.com': os.getenv('WHOOGLE_ALT_IG', 'bibliogram.art/u'),
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'reddit.com': os.getenv('WHOOGLE_ALT_RD', 'libredd.it')
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}
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def has_ad_content(element: str) -> bool:
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"""Inspects an HTML element for ad related content
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Args:
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element: The HTML element to inspect
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Returns:
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bool: True/False for the element containing an ad
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"""
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return (element.upper() in (value.upper() for value in BLACKLIST)
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or 'ⓘ' in element)
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def get_first_link(soup: BeautifulSoup) -> str:
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"""Retrieves the first result link from the query response
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Args:
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soup: The BeautifulSoup response body
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Returns:
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str: A str link to the first result
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"""
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# Replace hrefs with only the intended destination (no "utm" type tags)
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for a in soup.find_all('a', href=True):
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# Return the first search result URL
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if 'url?q=' in a['href']:
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return filter_link_args(a['href'])
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def get_site_alt(link: str) -> str:
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"""Returns an alternative to a particular site, if one is configured
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Args:
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link: A string result URL to check against the SITE_ALTS map
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Returns:
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str: An updated (or ignored) result link
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"""
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for site_key in SITE_ALTS.keys():
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if site_key not in link:
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continue
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link = link.replace(site_key, SITE_ALTS[site_key])
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break
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for prefix in SKIP_PREFIX:
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link = link.replace(prefix, '//')
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return link
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def filter_link_args(link: str) -> str:
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"""Filters out unnecessary URL args from a result link
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Args:
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link: The string result link to check for extraneous URL params
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Returns:
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str: An updated (or ignored) result link
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"""
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parsed_link = urlparse.urlparse(link)
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link_args = parse_qs(parsed_link.query)
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safe_args = {}
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if len(link_args) == 0 and len(parsed_link) > 0:
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return link
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for arg in link_args.keys():
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if arg in SKIP_ARGS:
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continue
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safe_args[arg] = link_args[arg]
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# Remove original link query and replace with filtered args
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link = link.replace(parsed_link.query, '')
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if len(safe_args) > 0:
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link = link + urlparse.urlencode(safe_args, doseq=True)
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else:
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link = link.replace('?', '')
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return link
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def append_nojs(result: BeautifulSoup) -> None:
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"""Appends a no-Javascript alternative for a search result
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Args:
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result: The search result to append a no-JS link to
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Returns:
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None
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"""
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nojs_link = BeautifulSoup(features='html.parser').new_tag('a')
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nojs_link['href'] = '/window?location=' + result['href']
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nojs_link['style'] = 'display:block;width:100%;'
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nojs_link.string = 'NoJS Link: ' + nojs_link['href']
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result.append(BeautifulSoup('<br><hr><br>', 'html.parser'))
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result.append(nojs_link)
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