mirror of
https://github.com/searx/searx
synced 2024-12-11 08:25:27 +01:00
b8cd326464
Split the utils directory into: * searx_extra contains update scripts, standalone_searx.py * utils contains the files to build and setup searx.
203 lines
7.2 KiB
Python
Executable File
203 lines
7.2 KiB
Python
Executable File
#!/usr/bin/env python
|
|
|
|
import sys
|
|
import json
|
|
from urllib.parse import quote, urlparse
|
|
import detect_language
|
|
from lxml.html import fromstring
|
|
|
|
from searx.engines.wikidata import send_wikidata_query
|
|
from searx.utils import extract_text
|
|
import searx
|
|
import searx.search
|
|
import searx.poolrequests
|
|
|
|
SPARQL_WIKIPEDIA_ARTICLE = """
|
|
SELECT DISTINCT ?item ?name
|
|
WHERE {
|
|
VALUES ?item { %IDS% }
|
|
?article schema:about ?item ;
|
|
schema:inLanguage ?lang ;
|
|
schema:name ?name ;
|
|
schema:isPartOf [ wikibase:wikiGroup "wikipedia" ] .
|
|
FILTER(?lang in (%LANGUAGES_SPARQL%)) .
|
|
FILTER (!CONTAINS(?name, ':')) .
|
|
}
|
|
"""
|
|
|
|
SPARQL_DESCRIPTION = """
|
|
SELECT DISTINCT ?item ?itemDescription
|
|
WHERE {
|
|
VALUES ?item { %IDS% }
|
|
?item schema:description ?itemDescription .
|
|
FILTER (lang(?itemDescription) in (%LANGUAGES_SPARQL%))
|
|
}
|
|
ORDER BY ?itemLang
|
|
"""
|
|
|
|
LANGUAGES = searx.settings['locales'].keys()
|
|
LANGUAGES_SPARQL = ', '.join(set(map(lambda l: repr(l.split('_')[0]), LANGUAGES)))
|
|
IDS = None
|
|
|
|
descriptions = {}
|
|
wd_to_engine_name = {}
|
|
|
|
|
|
def normalize_description(description):
|
|
for c in [chr(c) for c in range(0, 31)]:
|
|
description = description.replace(c, ' ')
|
|
description = ' '.join(description.strip().split())
|
|
return description
|
|
|
|
|
|
def update_description(engine_name, lang, description, source, replace=True):
|
|
if replace or lang not in descriptions[engine_name]:
|
|
descriptions[engine_name][lang] = [normalize_description(description), source]
|
|
|
|
|
|
def get_wikipedia_summary(language, pageid):
|
|
search_url = 'https://{language}.wikipedia.org/api/rest_v1/page/summary/{title}'
|
|
url = search_url.format(title=quote(pageid), language=language)
|
|
try:
|
|
response = searx.poolrequests.get(url)
|
|
response.raise_for_status()
|
|
api_result = json.loads(response.text)
|
|
return api_result.get('extract')
|
|
except:
|
|
return None
|
|
|
|
|
|
def detect_language(text):
|
|
r = cld3.get_language(str(text)) # pylint: disable=E1101
|
|
if r is not None and r.probability >= 0.98 and r.is_reliable:
|
|
return r.language
|
|
return None
|
|
|
|
|
|
def get_website_description(url, lang1, lang2=None):
|
|
headers = {
|
|
'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:84.0) Gecko/20100101 Firefox/84.0',
|
|
'Accept': 'text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8',
|
|
'DNT': '1',
|
|
'Upgrade-Insecure-Requests': '1',
|
|
'Sec-GPC': '1',
|
|
'Cache-Control': 'max-age=0',
|
|
}
|
|
if lang1 is not None:
|
|
lang_list = [lang1]
|
|
if lang2 is not None:
|
|
lang_list.append(lang2)
|
|
headers['Accept-Language'] = f'{",".join(lang_list)};q=0.8'
|
|
try:
|
|
response = searx.poolrequests.get(url, headers=headers, timeout=10)
|
|
response.raise_for_status()
|
|
except Exception:
|
|
return (None, None)
|
|
|
|
try:
|
|
html = fromstring(response.text)
|
|
except ValueError:
|
|
html = fromstring(response.content)
|
|
|
|
description = extract_text(html.xpath('/html/head/meta[@name="description"]/@content'))
|
|
if not description:
|
|
description = extract_text(html.xpath('/html/head/meta[@property="og:description"]/@content'))
|
|
if not description:
|
|
description = extract_text(html.xpath('/html/head/title'))
|
|
lang = extract_text(html.xpath('/html/@lang'))
|
|
if lang is None and len(lang1) > 0:
|
|
lang = lang1
|
|
lang = detect_language(description) or lang or 'en'
|
|
lang = lang.split('_')[0]
|
|
lang = lang.split('-')[0]
|
|
return (lang, description)
|
|
|
|
|
|
def initialize():
|
|
global descriptions, wd_to_engine_name, IDS
|
|
searx.search.initialize()
|
|
for engine_name, engine in searx.engines.engines.items():
|
|
descriptions[engine_name] = {}
|
|
wikidata_id = getattr(engine, "about", {}).get('wikidata_id')
|
|
if wikidata_id is not None:
|
|
wd_to_engine_name.setdefault(wikidata_id, set()).add(engine_name)
|
|
|
|
IDS = ' '.join(list(map(lambda wd_id: 'wd:' + wd_id, wd_to_engine_name.keys())))
|
|
|
|
|
|
def fetch_wikidata_descriptions():
|
|
global IDS
|
|
result = send_wikidata_query(SPARQL_DESCRIPTION
|
|
.replace('%IDS%', IDS)
|
|
.replace('%LANGUAGES_SPARQL%', LANGUAGES_SPARQL))
|
|
if result is not None:
|
|
for binding in result['results']['bindings']:
|
|
wikidata_id = binding['item']['value'].replace('http://www.wikidata.org/entity/', '')
|
|
lang = binding['itemDescription']['xml:lang']
|
|
description = binding['itemDescription']['value']
|
|
if ' ' in description: # skip unique word description (like "website")
|
|
for engine_name in wd_to_engine_name[wikidata_id]:
|
|
update_description(engine_name, lang, description, 'wikidata')
|
|
|
|
|
|
def fetch_wikipedia_descriptions():
|
|
global IDS
|
|
result = send_wikidata_query(SPARQL_WIKIPEDIA_ARTICLE
|
|
.replace('%IDS%', IDS)
|
|
.replace('%LANGUAGES_SPARQL%', LANGUAGES_SPARQL))
|
|
if result is not None:
|
|
for binding in result['results']['bindings']:
|
|
wikidata_id = binding['item']['value'].replace('http://www.wikidata.org/entity/', '')
|
|
lang = binding['name']['xml:lang']
|
|
pageid = binding['name']['value']
|
|
description = get_wikipedia_summary(lang, pageid)
|
|
if description is not None and ' ' in description:
|
|
for engine_name in wd_to_engine_name[wikidata_id]:
|
|
update_description(engine_name, lang, description, 'wikipedia')
|
|
|
|
|
|
def normalize_url(url):
|
|
url = url.replace('{language}', 'en')
|
|
url = urlparse(url)._replace(path='/', params='', query='', fragment='').geturl()
|
|
url = url.replace('https://api.', 'https://')
|
|
return url
|
|
|
|
|
|
def fetch_website_description(engine_name, website):
|
|
default_lang, default_description = get_website_description(website, None, None)
|
|
if default_lang is None or default_description is None:
|
|
return
|
|
if default_lang not in descriptions[engine_name]:
|
|
descriptions[engine_name][default_lang] = [normalize_description(default_description), website]
|
|
for request_lang in ('en-US', 'es-US', 'fr-FR', 'zh', 'ja', 'ru', 'ar', 'ko'):
|
|
if request_lang.split('-')[0] not in descriptions[engine_name]:
|
|
lang, desc = get_website_description(website, request_lang, request_lang.split('-')[0])
|
|
if desc is not None and desc != default_description:
|
|
update_description(engine_name, lang, desc, website, replace=False)
|
|
else:
|
|
break
|
|
|
|
|
|
def fetch_website_descriptions():
|
|
for engine_name, engine in searx.engines.engines.items():
|
|
website = getattr(engine, "about", {}).get('website')
|
|
if website is None:
|
|
website = normalize_url(getattr(engine, "search_url"))
|
|
if website is None:
|
|
website = normalize_url(getattr(engine, "base_url"))
|
|
if website is not None:
|
|
fetch_website_description(engine_name, website)
|
|
|
|
|
|
def main():
|
|
initialize()
|
|
fetch_wikidata_descriptions()
|
|
fetch_wikipedia_descriptions()
|
|
fetch_website_descriptions()
|
|
|
|
sys.stdout.write(json.dumps(descriptions, indent=1, separators=(',', ':'), ensure_ascii=False))
|
|
|
|
|
|
if __name__ == "__main__":
|
|
main()
|