mirror of
https://github.com/searxng/searxng.git
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153 lines
4.5 KiB
Python
153 lines
4.5 KiB
Python
# SPDX-License-Identifier: AGPL-3.0-or-later
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# lint: pylint
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"""
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Arch Linux Wiki
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~~~~~~~~~~~~~~~
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This implementation does not use a official API: Mediawiki provides API, but
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Arch Wiki blocks access to it.
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"""
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from typing import TYPE_CHECKING
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from urllib.parse import urlencode, urljoin, urlparse
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import lxml
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import babel
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from searx.utils import extract_text, eval_xpath_list, eval_xpath_getindex
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from searx.enginelib.traits import EngineTraits
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from searx.locales import language_tag
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if TYPE_CHECKING:
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import logging
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logger: logging.Logger
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traits: EngineTraits
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about = {
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"website": 'https://wiki.archlinux.org/',
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"wikidata_id": 'Q101445877',
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"official_api_documentation": None,
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"use_official_api": False,
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"require_api_key": False,
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"results": 'HTML',
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}
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# engine dependent config
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categories = ['it', 'software wikis']
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paging = True
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main_wiki = 'wiki.archlinux.org'
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def request(query, params):
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sxng_lang = params['searxng_locale'].split('-')[0]
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netloc: str = traits.custom['wiki_netloc'].get(sxng_lang, main_wiki) # type: ignore
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title: str = traits.custom['title'].get(sxng_lang, 'Special:Search') # type: ignore
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base_url = 'https://' + netloc + '/index.php?'
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offset = (params['pageno'] - 1) * 20
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if netloc == main_wiki:
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eng_lang: str = traits.get_language(sxng_lang, 'English') # type: ignore
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query += ' (' + eng_lang + ')'
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elif netloc == 'wiki.archlinuxcn.org':
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base_url = 'https://' + netloc + '/wzh/index.php?'
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args = {
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'search': query,
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'title': title,
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'limit': 20,
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'offset': offset,
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'profile': 'default',
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}
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params['url'] = base_url + urlencode(args)
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return params
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def response(resp):
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results = []
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dom = lxml.html.fromstring(resp.text) # type: ignore
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# get the base URL for the language in which request was made
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sxng_lang = resp.search_params['searxng_locale'].split('-')[0]
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netloc: str = traits.custom['wiki_netloc'].get(sxng_lang, main_wiki) # type: ignore
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base_url = 'https://' + netloc + '/index.php?'
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for result in eval_xpath_list(dom, '//ul[@class="mw-search-results"]/li'):
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link = eval_xpath_getindex(result, './/div[@class="mw-search-result-heading"]/a', 0)
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content = extract_text(result.xpath('.//div[@class="searchresult"]'))
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results.append(
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{
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'url': urljoin(base_url, link.get('href')), # type: ignore
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'title': extract_text(link),
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'content': content,
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}
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)
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return results
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def fetch_traits(engine_traits: EngineTraits):
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"""Fetch languages from Archlinux-Wiki. The location of the Wiki address of a
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language is mapped in a :py:obj:`custom field
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<searx.enginelib.traits.EngineTraits.custom>` (``wiki_netloc``). Depending
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on the location, the ``title`` argument in the request is translated.
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.. code:: python
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"custom": {
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"wiki_netloc": {
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"de": "wiki.archlinux.de",
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# ...
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"zh": "wiki.archlinuxcn.org"
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}
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"title": {
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"de": "Spezial:Suche",
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# ...
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"zh": "Special:\u641c\u7d22"
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},
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},
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"""
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# pylint: disable=import-outside-toplevel
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from searx.network import get # see https://github.com/searxng/searxng/issues/762
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engine_traits.custom['wiki_netloc'] = {}
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engine_traits.custom['title'] = {}
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title_map = {
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'de': 'Spezial:Suche',
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'fa': 'ویژه:جستجو',
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'ja': '特別:検索',
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'zh': 'Special:搜索',
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}
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resp = get('https://wiki.archlinux.org/')
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if not resp.ok: # type: ignore
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print("ERROR: response from wiki.archlinux.org is not OK.")
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dom = lxml.html.fromstring(resp.text) # type: ignore
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for a in eval_xpath_list(dom, "//a[@class='interlanguage-link-target']"):
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sxng_tag = language_tag(babel.Locale.parse(a.get('lang'), sep='-'))
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# zh_Hans --> zh
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sxng_tag = sxng_tag.split('_')[0]
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netloc = urlparse(a.get('href')).netloc
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if netloc != 'wiki.archlinux.org':
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title = title_map.get(sxng_tag)
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if not title:
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print("ERROR: title tag from %s (%s) is unknown" % (netloc, sxng_tag))
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continue
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engine_traits.custom['wiki_netloc'][sxng_tag] = netloc
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engine_traits.custom['title'][sxng_tag] = title # type: ignore
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eng_tag = extract_text(eval_xpath_list(a, ".//span"))
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engine_traits.languages[sxng_tag] = eng_tag # type: ignore
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engine_traits.languages['en'] = 'English'
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