[mod] Archlinux Wiki: improved request API & upgrade to data_type: traits_v1

re-implementation of the Archlinux Wiki:

- fetch_traits(): fetch languages, wiki URLs and title arguments
- add content field to the result list
- add documentation

Wikis from wiki.archlinux.fr, wiki.archlinux.ro, archtr.org/wiki do no longer
exists (has been merged in the main wiki).

Signed-off-by: Markus Heiser <markus.heiser@darmarit.de>
This commit is contained in:
Markus Heiser 2023-01-07 16:04:19 +01:00
parent 057e9bc1d1
commit 96a2eec3b5
4 changed files with 177 additions and 109 deletions

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@ -0,0 +1,9 @@
.. _archlinux engine:
==========
Arch Linux
==========
.. automodule:: searx.engines.archlinux
:members:

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@ -1,4 +1,57 @@
{
"arch linux wiki": {
"all_locale": null,
"custom": {
"title": {
"de": "Spezial:Suche",
"fa": "\u0648\u06cc\u0698\u0647:\u062c\u0633\u062a\u062c\u0648",
"ja": "\u7279\u5225:\u691c\u7d22",
"zh": "Special:\u641c\u7d22"
},
"wiki_netloc": {
"de": "wiki.archlinux.de",
"fa": "wiki.archusers.ir",
"ja": "wiki.archlinux.jp",
"zh": "wiki.archlinuxcn.org"
}
},
"data_type": "traits_v1",
"languages": {
"ar": "\u0627\u0644\u0639\u0631\u0628\u064a\u0629",
"bg": "\u0411\u044a\u043b\u0433\u0430\u0440\u0441\u043a\u0438",
"bs": "Bosanski",
"cs": "\u010ce\u0161tina",
"da": "Dansk",
"de": "Deutsch",
"el": "\u0395\u03bb\u03bb\u03b7\u03bd\u03b9\u03ba\u03ac",
"en": "English",
"es": "Espa\u00f1ol",
"fa": "\u0641\u0627\u0631\u0633\u06cc",
"fi": "Suomi",
"fr": "Fran\u00e7ais",
"he": "\u05e2\u05d1\u05e8\u05d9\u05ea",
"hr": "Hrvatski",
"hu": "Magyar",
"id": "Bahasa Indonesia",
"it": "Italiano",
"ja": "\u65e5\u672c\u8a9e",
"ko": "\ud55c\uad6d\uc5b4",
"lt": "Lietuvi\u0173",
"nl": "Nederlands",
"pl": "Polski",
"pt": "Portugu\u00eas",
"ru": "\u0420\u0443\u0441\u0441\u043a\u0438\u0439",
"sk": "Sloven\u010dina",
"sr": "\u0421\u0440\u043f\u0441\u043a\u0438 / srpski",
"sv": "Svenska",
"th": "\u0e44\u0e17\u0e22",
"tr": "T\u00fcrk\u00e7e",
"uk": "\u0423\u043a\u0440\u0430\u0457\u043d\u0441\u044c\u043a\u0430",
"zh": "\u4e2d\u6587\uff08\u7e41\u9ad4\uff09"
},
"regions": {},
"supported_languages": {}
},
"bing": {
"all_locale": null,
"custom": {},

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@ -1,15 +1,32 @@
# SPDX-License-Identifier: AGPL-3.0-or-later
# lint: pylint
"""
Arch Linux Wiki
Arch Linux Wiki
~~~~~~~~~~~~~~~
This implementation does not use a official API: Mediawiki provides API, but
Arch Wiki blocks access to it.
API: Mediawiki provides API, but Arch Wiki blocks access to it
"""
from urllib.parse import urlencode, urljoin
from lxml import html
from typing import TYPE_CHECKING
from urllib.parse import urlencode, urljoin, urlparse
import lxml
import babel
from searx import network
from searx.utils import extract_text, eval_xpath_list, eval_xpath_getindex
from searx.enginelib.traits import EngineTraits
from searx.locales import language_tag
if TYPE_CHECKING:
import logging
logger: logging.Logger
traits: EngineTraits
# about
about = {
"website": 'https://wiki.archlinux.org/',
"wikidata_id": 'Q101445877',
@ -22,125 +39,113 @@ about = {
# engine dependent config
categories = ['it', 'software wikis']
paging = True
base_url = 'https://wiki.archlinux.org'
# xpath queries
xpath_results = '//ul[@class="mw-search-results"]/li'
xpath_link = './/div[@class="mw-search-result-heading"]/a'
main_wiki = 'wiki.archlinux.org'
# cut 'en' from 'en-US', 'de' from 'de-CH', and so on
def locale_to_lang_code(locale):
if locale.find('-') >= 0:
locale = locale.split('-')[0]
return locale
# wikis for some languages were moved off from the main site, we need to make
# requests to correct URLs to be able to get results in those languages
lang_urls = {
# fmt: off
'all': {
'base': 'https://wiki.archlinux.org',
'search': '/index.php?title=Special:Search&offset={offset}&{query}'
},
'de': {
'base': 'https://wiki.archlinux.de',
'search': '/index.php?title=Spezial:Suche&offset={offset}&{query}'
},
'fr': {
'base': 'https://wiki.archlinux.fr',
'search': '/index.php?title=Spécial:Recherche&offset={offset}&{query}'
},
'ja': {
'base': 'https://wiki.archlinuxjp.org',
'search': '/index.php?title=特別:検索&offset={offset}&{query}'
},
'ro': {
'base': 'http://wiki.archlinux.ro',
'search': '/index.php?title=Special:Căutare&offset={offset}&{query}'
},
'tr': {
'base': 'http://archtr.org/wiki',
'search': '/index.php?title=Özel:Ara&offset={offset}&{query}'
}
# fmt: on
}
# get base & search URLs for selected language
def get_lang_urls(language):
if language in lang_urls:
return lang_urls[language]
return lang_urls['all']
# Language names to build search requests for
# those languages which are hosted on the main site.
main_langs = {
'ar': 'العربية',
'bg': 'Български',
'cs': 'Česky',
'da': 'Dansk',
'el': 'Ελληνικά',
'es': 'Español',
'he': 'עברית',
'hr': 'Hrvatski',
'hu': 'Magyar',
'it': 'Italiano',
'ko': '한국어',
'lt': 'Lietuviškai',
'nl': 'Nederlands',
'pl': 'Polski',
'pt': 'Português',
'ru': 'Русский',
'sl': 'Slovenský',
'th': 'ไทย',
'uk': 'Українська',
'zh': '简体中文',
}
supported_languages = dict(lang_urls, **main_langs)
# do search-request
def request(query, params):
# translate the locale (e.g. 'en-US') to language code ('en')
language = locale_to_lang_code(params['language'])
# if our language is hosted on the main site, we need to add its name
# to the query in order to narrow the results to that language
if language in main_langs:
query += ' (' + main_langs[language] + ')'
# prepare the request parameters
query = urlencode({'search': query})
sxng_lang = params['searxng_locale'].split('-')[0]
netloc = traits.custom['wiki_netloc'].get(sxng_lang, main_wiki)
title = traits.custom['title'].get(sxng_lang, 'Special:Search')
base_url = 'https://' + netloc + '/index.php?'
offset = (params['pageno'] - 1) * 20
# get request URLs for our language of choice
urls = get_lang_urls(language)
search_url = urls['base'] + urls['search']
if netloc == main_wiki:
eng_lang: str = traits.get_language(sxng_lang, 'English')
query += ' (' + eng_lang + ')'
elif netloc == 'wiki.archlinuxcn.org':
base_url = 'https://' + netloc + '/wzh/index.php?'
params['url'] = search_url.format(query=query, offset=offset)
args = {
'search': query,
'title': title,
'limit': 20,
'offset': offset,
'profile': 'default',
}
params['url'] = base_url + urlencode(args)
return params
# get response from search-request
def response(resp):
# get the base URL for the language in which request was made
language = locale_to_lang_code(resp.search_params['language'])
base_url = get_lang_urls(language)['base']
results = []
dom = lxml.html.fromstring(resp.text)
dom = html.fromstring(resp.text)
# get the base URL for the language in which request was made
sxng_lang = resp.search_params['searxng_locale'].split('-')[0]
netloc = traits.custom['wiki_netloc'].get(sxng_lang, main_wiki)
base_url = 'https://' + netloc + '/index.php?'
# parse results
for result in eval_xpath_list(dom, xpath_results):
link = eval_xpath_getindex(result, xpath_link, 0)
href = urljoin(base_url, link.attrib.get('href'))
title = extract_text(link)
results.append({'url': href, 'title': title})
for result in eval_xpath_list(dom, '//ul[@class="mw-search-results"]/li'):
link = eval_xpath_getindex(result, './/div[@class="mw-search-result-heading"]/a', 0)
content = extract_text(result.xpath('.//div[@class="searchresult"]'))
results.append(
{
'url': urljoin(base_url, link.get('href')),
'title': extract_text(link),
'content': content,
}
)
return results
def fetch_traits(engine_traits: EngineTraits):
"""Fetch languages from Archlinix-Wiki. The location of the Wiki address of a
language is mapped in a :py:obj:`custom field
<searx.enginelib.traits.EngineTraits.custom>` (``wiki_netloc``). Depending
on the location, the ``title`` argument in the request is translated.
.. code:: python
"custom": {
"wiki_netloc": {
"de": "wiki.archlinux.de",
# ...
"zh": "wiki.archlinuxcn.org"
}
"title": {
"de": "Spezial:Suche",
# ...
"zh": "Special:\u641c\u7d22"
},
},
"""
engine_traits.custom['wiki_netloc'] = {}
engine_traits.custom['title'] = {}
title_map = {
'de': 'Spezial:Suche',
'fa': 'ویژه:جستجو',
'ja': '特別:検索',
'zh': 'Special:搜索',
}
resp = network.get('https://wiki.archlinux.org/')
if not resp.ok:
print("ERROR: response from wiki.archlinix.org is not OK.")
dom = lxml.html.fromstring(resp.text)
for a in eval_xpath_list(dom, "//a[@class='interlanguage-link-target']"):
sxng_tag = language_tag(babel.Locale.parse(a.get('lang'), sep='-'))
# zh_Hans --> zh
sxng_tag = sxng_tag.split('_')[0]
netloc = urlparse(a.get('href')).netloc
if netloc != 'wiki.archlinux.org':
title = title_map.get(sxng_tag)
if not title:
print("ERROR: title tag from %s (%s) is unknown" % (netloc, sxng_tag))
continue
engine_traits.custom['wiki_netloc'][sxng_tag] = netloc
engine_traits.custom['title'][sxng_tag] = title
eng_tag = extract_text(eval_xpath_list(a, ".//span"))
engine_traits.languages[sxng_tag] = eng_tag
engine_traits.languages['en'] = 'English'

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@ -81,6 +81,7 @@ sxng_locales = (
('ru-RU', 'Русский', 'Россия', 'Russian', '\U0001f1f7\U0001f1fa'),
('sk', 'Slovenčina', '', 'Slovak', '\U0001f310'),
('sl', 'Slovenščina', '', 'Slovenian', '\U0001f310'),
('sr', 'Српски', '', 'Serbian', '\U0001f310'),
('sv', 'Svenska', '', 'Swedish', '\U0001f310'),
('sv-SE', 'Svenska', 'Sverige', 'Swedish', '\U0001f1f8\U0001f1ea'),
('th', 'ไทย', '', 'Thai', '\U0001f310'),