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https://github.com/searxng/searxng.git
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[mod] engine: wikimedia - improve results, add addition settings & doc
Signed-off-by: Markus Heiser <markus.heiser@darmarit.de>
This commit is contained in:
Markus Heiser
Markus Heiser
parent
7d8c20c80d
commit
db522cf76d
4 changed files with 154 additions and 67 deletions
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@ -40,6 +40,12 @@ Online Engines
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demo/demo_online
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xpath
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mediawiki
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.. toctree::
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:maxdepth: 1
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:glob:
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online/*
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.. _offline engines:
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13
docs/dev/engines/mediawiki.rst
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13
docs/dev/engines/mediawiki.rst
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@ -0,0 +1,13 @@
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.. _mediawiki engine:
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================
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MediaWiki Engine
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================
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.. contents::
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:depth: 2
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:local:
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:backlinks: entry
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.. automodule:: searx.engines.mediawiki
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:members:
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@ -1,18 +1,59 @@
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# SPDX-License-Identifier: AGPL-3.0-or-later
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"""
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General mediawiki-engine (Web)
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"""
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# lint: pylint
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"""The MediaWiki engine is a *generic* engine to **query** Wikimedia wikis by
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the `MediaWiki Action API`_. For a `query action`_ all Wikimedia wikis have
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endpoints that follow this pattern::
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from string import Formatter
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https://{base_url}/w/api.php?action=query&list=search&format=json
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.. note::
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In its actual state, this engine is implemented to parse JSON result
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(`format=json`_) from a search query (`list=search`_). If you need other
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``action`` and ``list`` types ask SearXNG developers to extend the
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implementation according to your needs.
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.. _MediaWiki Action API: https://www.mediawiki.org/wiki/API:Main_page
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.. _query action: https://www.mediawiki.org/w/api.php?action=help&modules=query
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.. _`list=search`: https://www.mediawiki.org/w/api.php?action=help&modules=query%2Bsearch
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.. _`format=json`: https://www.mediawiki.org/w/api.php?action=help&modules=json
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Configuration
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=============
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Request:
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- :py:obj:`base_url`
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- :py:obj:`search_type`
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- :py:obj:`srenablerewrites`
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- :py:obj:`srsort`
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- :py:obj:`srprop`
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Implementations
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===============
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"""
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from __future__ import annotations
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from typing import TYPE_CHECKING
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from datetime import datetime
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from urllib.parse import urlencode, quote
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from searx.utils import html_to_text
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from searx.enginelib.traits import EngineTraits
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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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about = {
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"website": None,
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"wikidata_id": None,
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"official_api_documentation": 'http://www.mediawiki.org/wiki/API:Search',
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"official_api_documentation": 'https://www.mediawiki.org/w/api.php?action=help&modules=query',
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"use_official_api": True,
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"require_api_key": False,
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"results": 'JSON',
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@ -21,73 +62,119 @@ about = {
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# engine dependent config
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categories = ['general']
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paging = True
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number_of_results = 1
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search_type = 'nearmatch' # possible values: title, text, nearmatch
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number_of_results = 5
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# search-url
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base_url = 'https://{language}.wikipedia.org/'
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search_postfix = (
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'w/api.php?action=query'
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'&list=search'
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'&{query}'
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'&format=json'
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'&sroffset={offset}'
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'&srlimit={limit}'
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'&srwhat={searchtype}'
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)
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search_type: str = 'nearmatch'
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"""Which type of search to perform. One of the following values: ``nearmatch``,
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``text`` or ``title``.
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See ``srwhat`` argument in `list=search`_ documentation.
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"""
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srenablerewrites: bool = True
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"""Enable internal query rewriting (Type: boolean). Some search backends can
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rewrite the query into another which is thought to provide better results, for
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instance by correcting spelling errors.
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See ``srenablerewrites`` argument in `list=search`_ documentation.
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"""
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srsort: str = 'relevance'
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"""Set the sort order of returned results. One of the following values:
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``create_timestamp_asc``, ``create_timestamp_desc``, ``incoming_links_asc``,
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``incoming_links_desc``, ``just_match``, ``last_edit_asc``, ``last_edit_desc``,
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``none``, ``random``, ``relevance``, ``user_random``.
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See ``srenablerewrites`` argument in `list=search`_ documentation.
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"""
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srprop: str = 'sectiontitle|snippet|timestamp|categorysnippet'
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"""Which properties to return.
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See ``srprop`` argument in `list=search`_ documentation.
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"""
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base_url: str = 'https://{language}.wikipedia.org/'
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"""Base URL of the Wikimedia wiki.
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``{language}``:
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ISO 639-1 language code (en, de, fr ..) of the search language.
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"""
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timestamp_format = '%Y-%m-%dT%H:%M:%SZ'
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"""The longhand version of MediaWiki time strings."""
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# do search-request
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def request(query, params):
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offset = (params['pageno'] - 1) * number_of_results
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string_args = dict(
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query=urlencode({'srsearch': query}), offset=offset, limit=number_of_results, searchtype=search_type
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)
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format_strings = list(Formatter().parse(base_url))
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if params['language'] == 'all':
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language = 'en'
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else:
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language = params['language'].split('-')[0]
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# format_string [('https://', 'language', '', None), ('.wikipedia.org/', None, None, None)]
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if any(x[1] == 'language' for x in format_strings):
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string_args['language'] = language
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# write search-language back to params, required in response
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params['language'] = language
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search_url = base_url + search_postfix
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if params['language'] == 'all':
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params['language'] = 'en'
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else:
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params['language'] = params['language'].split('-')[0]
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params['url'] = search_url.format(**string_args)
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if base_url.endswith('/'):
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api_url = base_url + 'w/api.php?'
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else:
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api_url = base_url + '/w/api.php?'
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api_url = api_url.format(language=params['language'])
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offset = (params['pageno'] - 1) * number_of_results
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args = {
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'action': 'query',
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'list': 'search',
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'format': 'json',
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'srsearch': query,
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'sroffset': offset,
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'srlimit': number_of_results,
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'srwhat': search_type,
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'srprop': srprop,
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'srsort': srsort,
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}
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if srenablerewrites:
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args['srenablerewrites'] = '1'
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params['url'] = api_url + urlencode(args)
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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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results = []
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results = []
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search_results = resp.json()
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# return empty array if there are no results
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if not search_results.get('query', {}).get('search'):
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return []
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# parse results
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for result in search_results['query']['search']:
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if result.get('snippet', '').startswith('#REDIRECT'):
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continue
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url = (
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base_url.format(language=resp.search_params['language'])
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+ 'wiki/'
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+ quote(result['title'].replace(' ', '_').encode())
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)
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# append result
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results.append({'url': url, 'title': result['title'], 'content': html_to_text(result.get('snippet', ''))})
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title = result['title']
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sectiontitle = result.get('sectiontitle')
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content = html_to_text(result.get('snippet', ''))
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metadata = html_to_text(result.get('categorysnippet', ''))
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timestamp = result.get('timestamp')
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url = (
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base_url.format(language=resp.search_params['language']) + 'wiki/' + quote(title.replace(' ', '_').encode())
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)
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if sectiontitle:
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# in case of sectiontitle create a link to the section in the wiki page
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url += '#' + quote(sectiontitle.replace(' ', '_').encode())
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title += ' / ' + sectiontitle
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item = {'url': url, 'title': title, 'content': content, 'metadata': metadata}
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if timestamp:
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item['publishedDate'] = datetime.strptime(timestamp, timestamp_format)
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results.append(item)
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# return results
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return results
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@ -667,11 +667,6 @@ engines:
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shortcut: fsd
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categories: [it, software wikis]
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base_url: https://directory.fsf.org/
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number_of_results: 5
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# what part of a page matches the query string: title, text, nearmatch
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# * title - query matches title
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# * text - query matches the text of page
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# * nearmatch - nearmatch in title
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search_type: title
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timeout: 5.0
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disabled: true
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@ -1449,13 +1444,6 @@ engines:
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engine: twitter
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disabled: true
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# maybe in a fun category
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# - name: uncyclopedia
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# engine: mediawiki
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# shortcut: unc
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# base_url: https://uncyclopedia.wikia.com/
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# number_of_results: 5
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# tmp suspended - too slow, too many errors
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# - name: urbandictionary
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# engine : xpath
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@ -1534,7 +1522,6 @@ engines:
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shortcut: wb
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categories: general
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base_url: "https://{language}.wikibooks.org/"
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number_of_results: 5
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search_type: text
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disabled: true
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about:
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@ -1546,9 +1533,9 @@ engines:
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shortcut: wn
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categories: news
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base_url: "https://{language}.wikinews.org/"
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number_of_results: 5
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search_type: text
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disabled: true
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srsort: create_timestamp_desc
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about:
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website: https://www.wikinews.org/
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wikidata_id: Q964
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@ -1558,7 +1545,6 @@ engines:
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shortcut: wq
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categories: general
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base_url: "https://{language}.wikiquote.org/"
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number_of_results: 5
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search_type: text
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disabled: true
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additional_tests:
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@ -1572,7 +1558,6 @@ engines:
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shortcut: ws
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categories: general
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base_url: "https://{language}.wikisource.org/"
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number_of_results: 5
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search_type: text
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disabled: true
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about:
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@ -1584,7 +1569,6 @@ engines:
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shortcut: wsp
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categories: [general, science]
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base_url: "https://species.wikimedia.org/"
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number_of_results: 5
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search_type: text
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disabled: true
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about:
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@ -1596,7 +1580,6 @@ engines:
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shortcut: wt
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categories: [dictionaries]
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base_url: "https://{language}.wiktionary.org/"
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number_of_results: 5
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search_type: text
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about:
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website: https://www.wiktionary.org/
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@ -1607,7 +1590,6 @@ engines:
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shortcut: wv
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categories: general
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base_url: "https://{language}.wikiversity.org/"
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number_of_results: 5
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search_type: text
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disabled: true
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about:
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@ -1619,7 +1601,6 @@ engines:
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shortcut: wy
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categories: general
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base_url: "https://{language}.wikivoyage.org/"
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number_of_results: 5
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search_type: text
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disabled: true
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about:
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