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[doc] build from commit 0f9694c90b012834400d11491a3c58790a857f6d
2024-11-23 17:01:29 +00:00
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<li class="nav-item nav-item-0"><a href="../../../index.html">SearXNG Documentation (2024.11.23+0f9694c90)</a> &#187;</li>
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<section id="wikimedia">
<span id="wikimedia-engines"></span><h1>Wikimedia<a class="headerlink" href="#wikimedia" title="Link to this heading"></a></h1>
<nav class="contents local" id="contents">
<ul class="simple">
<li><p><a class="reference internal" href="#module-searx.engines.wikipedia" id="id1">Wikipedia</a></p></li>
<li><p><a class="reference internal" href="#module-searx.engines.wikidata" id="id2">Wikidata</a></p></li>
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</nav>
<section id="module-searx.engines.wikipedia">
<span id="wikipedia"></span><span id="wikipedia-engine"></span><h2><a class="toc-backref" href="#id1" role="doc-backlink">Wikipedia</a><a class="headerlink" href="#module-searx.engines.wikipedia" title="Link to this heading"></a></h2>
<p>This module implements the Wikipedia engine. Some of this implementations
are shared by other engines:</p>
<ul class="simple">
<li><p><a class="reference internal" href="#wikidata-engine"><span class="std std-ref">Wikidata</span></a></p></li>
</ul>
<p>The list of supported languages is <a class="reference internal" href="#searx.engines.wikipedia.fetch_wikimedia_traits" title="searx.engines.wikipedia.fetch_wikimedia_traits"><code class="xref py py-obj docutils literal notranslate"><span class="pre">fetched</span></code></a> from
the article linked by <a class="reference internal" href="#searx.engines.wikipedia.list_of_wikipedias" title="searx.engines.wikipedia.list_of_wikipedias"><code class="xref py py-obj docutils literal notranslate"><span class="pre">list_of_wikipedias</span></code></a>.</p>
<p>Unlike traditional search engines, wikipedia does not support one Wikipedia for
all languages, but there is one Wikipedia for each supported language. Some of
these Wikipedias have a <a class="reference external" href="https://www.mediawiki.org/wiki/Writing_systems#LanguageConverter">LanguageConverter</a> enabled
(<a class="reference internal" href="#searx.engines.wikipedia.rest_v1_summary_url" title="searx.engines.wikipedia.rest_v1_summary_url"><code class="xref py py-obj docutils literal notranslate"><span class="pre">rest_v1_summary_url</span></code></a>).</p>
<p>A <a class="reference external" href="https://www.mediawiki.org/wiki/Writing_systems#LanguageConverter">LanguageConverter</a> (LC) is a system based on language variants that
automatically converts the content of a page into a different variant. A variant
is mostly the same language in a different script.</p>
<ul class="simple">
<li><p><a class="reference external" href="https://meta.wikimedia.org/wiki/Wikipedias_in_multiple_writing_systems">Wikipedias in multiple writing systems</a></p></li>
<li><p><a class="reference external" href="https://en.wikipedia.org/wiki/Chinese_Wikipedia#Automatic_conversion_between_traditional_and_simplified_Chinese_characters">Automatic conversion between traditional and simplified Chinese characters</a></p></li>
</ul>
<dl class="simple">
<dt><a class="reference external" href="https://github.com/searx/searx/pull/2554">PR-2554</a>:</dt><dd><p>The Wikipedia link returned by the API is still the same in all cases
(<a class="reference external" href="https://zh.wikipedia.org/wiki/%E5%87%BA%E7%A7%9F%E8%BB%8A">https://zh.wikipedia.org/wiki/出租車</a>) but if your browser’s
<code class="docutils literal notranslate"><span class="pre">Accept-Language</span></code> is set to any of <code class="docutils literal notranslate"><span class="pre">zh</span></code>, <code class="docutils literal notranslate"><span class="pre">zh-CN</span></code>, <code class="docutils literal notranslate"><span class="pre">zh-TW</span></code>, <code class="docutils literal notranslate"><span class="pre">zh-HK</span></code>
or .. Wikipedia’s LC automatically returns the desired script in their
web-page.</p>
<ul class="simple">
<li><p>You can test the API here: <a class="reference external" href="https://reqbin.com/gesg2kvx">https://reqbin.com/gesg2kvx</a></p></li>
</ul>
</dd>
</dl>
<p>To support Wikipedia’s <a class="reference external" href="https://www.mediawiki.org/wiki/Writing_systems#LanguageConverter">LanguageConverter</a>, a SearXNG request to Wikipedia uses
<a class="reference internal" href="#searx.engines.wikipedia.get_wiki_params" title="searx.engines.wikipedia.get_wiki_params"><code class="xref py py-obj docutils literal notranslate"><span class="pre">get_wiki_params</span></code></a> and <code class="xref py py-obj docutils literal notranslate"><span class="pre">wiki_lc_locale_variants'</span> <span class="pre">in</span> <span class="pre">the</span>
<span class="pre">:py:obj:`fetch_wikimedia_traits</span></code> function.</p>
<p>To test in SearXNG, query for <code class="docutils literal notranslate"><span class="pre">!wp</span> <span class="pre">出租車</span></code> with each of the available Chinese
options:</p>
<ul class="simple">
<li><p><code class="docutils literal notranslate"><span class="pre">!wp</span> <span class="pre">出租車</span> <span class="pre">:zh</span></code> should show 出租車</p></li>
<li><p><code class="docutils literal notranslate"><span class="pre">!wp</span> <span class="pre">出租車</span> <span class="pre">:zh-CN</span></code> should show 出租车</p></li>
<li><p><code class="docutils literal notranslate"><span class="pre">!wp</span> <span class="pre">出租車</span> <span class="pre">:zh-TW</span></code> should show 計程車</p></li>
<li><p><code class="docutils literal notranslate"><span class="pre">!wp</span> <span class="pre">出租車</span> <span class="pre">:zh-HK</span></code> should show 的士</p></li>
<li><p><code class="docutils literal notranslate"><span class="pre">!wp</span> <span class="pre">出租車</span> <span class="pre">:zh-SG</span></code> should show 德士</p></li>
</ul>
<dl class="py function">
<dt class="sig sig-object py" id="searx.engines.wikipedia.fetch_wikimedia_traits">
<span class="sig-prename descclassname"><span class="pre">searx.engines.wikipedia.</span></span><span class="sig-name descname"><span class="pre">fetch_wikimedia_traits</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">engine_traits</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><a class="reference internal" href="../enginelib.html#searx.enginelib.traits.EngineTraits" title="searx.enginelib.traits.EngineTraits"><span class="pre">EngineTraits</span></a></span></em><span class="sig-paren">)</span><a class="reference internal" href="../../../_modules/searx/engines/wikipedia.html#fetch_wikimedia_traits"><span class="viewcode-link"><span class="pre">[source]</span></span></a><a class="headerlink" href="#searx.engines.wikipedia.fetch_wikimedia_traits" title="Link to this definition"></a></dt>
<dd><p>Fetch languages from Wikipedia. Not all languages from the
<a class="reference internal" href="#searx.engines.wikipedia.list_of_wikipedias" title="searx.engines.wikipedia.list_of_wikipedias"><code class="xref py py-obj docutils literal notranslate"><span class="pre">list_of_wikipedias</span></code></a> are supported by SearXNG locales, only those
known from <a class="reference internal" href="../../../src/searx.locales.html#searx.locales.LOCALE_NAMES" title="searx.locales.LOCALE_NAMES"><code class="xref py py-obj docutils literal notranslate"><span class="pre">searx.locales.LOCALE_NAMES</span></code></a> or those with a minimal
<a class="reference internal" href="#searx.engines.wikipedia.wikipedia_article_depth" title="searx.engines.wikipedia.wikipedia_article_depth"><code class="xref py py-obj docutils literal notranslate"><span class="pre">editing</span> <span class="pre">depth</span></code></a>.</p>
<p>The location of the Wikipedia address of a language is mapped in a
<a class="reference internal" href="../enginelib.html#searx.enginelib.traits.EngineTraits.custom" title="searx.enginelib.traits.EngineTraits.custom"><code class="xref py py-obj docutils literal notranslate"><span class="pre">custom</span> <span class="pre">field</span></code></a>
(<code class="docutils literal notranslate"><span class="pre">wiki_netloc</span></code>). Here is a reduced example:</p>
<div class="highlight-python notranslate"><div class="highlight"><pre><span></span><span class="n">traits</span><span class="o">.</span><span class="n">custom</span><span class="p">[</span><span class="s1">&#39;wiki_netloc&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="p">{</span>
<span class="s2">&quot;en&quot;</span><span class="p">:</span> <span class="s2">&quot;en.wikipedia.org&quot;</span><span class="p">,</span>
<span class="o">..</span>
<span class="s2">&quot;gsw&quot;</span><span class="p">:</span> <span class="s2">&quot;als.wikipedia.org&quot;</span><span class="p">,</span>
<span class="o">..</span>
<span class="s2">&quot;zh&quot;</span><span class="p">:</span> <span class="s2">&quot;zh.wikipedia.org&quot;</span><span class="p">,</span>
<span class="s2">&quot;zh-classical&quot;</span><span class="p">:</span> <span class="s2">&quot;zh-classical.wikipedia.org&quot;</span>
<span class="p">}</span>
</pre></div>
</div>
</dd></dl>
<dl class="py function">
<dt class="sig sig-object py" id="searx.engines.wikipedia.get_wiki_params">
<span class="sig-prename descclassname"><span class="pre">searx.engines.wikipedia.</span></span><span class="sig-name descname"><span class="pre">get_wiki_params</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">sxng_locale</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">eng_traits</span></span></em><span class="sig-paren">)</span><a class="reference internal" href="../../../_modules/searx/engines/wikipedia.html#get_wiki_params"><span class="viewcode-link"><span class="pre">[source]</span></span></a><a class="headerlink" href="#searx.engines.wikipedia.get_wiki_params" title="Link to this definition"></a></dt>
<dd><p>Returns the Wikipedia language tag and the netloc that fits to the
<code class="docutils literal notranslate"><span class="pre">sxng_locale</span></code>. To support <a class="reference external" href="https://www.mediawiki.org/wiki/Writing_systems#LanguageConverter">LanguageConverter</a> this function rates a locale
(region) higher than a language (compare <a class="reference internal" href="#searx.engines.wikipedia.wiki_lc_locale_variants" title="searx.engines.wikipedia.wiki_lc_locale_variants"><code class="xref py py-obj docutils literal notranslate"><span class="pre">wiki_lc_locale_variants</span></code></a>).</p>
</dd></dl>
<dl class="py function">
<dt class="sig sig-object py" id="searx.engines.wikipedia.request">
<span class="sig-prename descclassname"><span class="pre">searx.engines.wikipedia.</span></span><span class="sig-name descname"><span class="pre">request</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">query</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">params</span></span></em><span class="sig-paren">)</span><a class="reference internal" href="../../../_modules/searx/engines/wikipedia.html#request"><span class="viewcode-link"><span class="pre">[source]</span></span></a><a class="headerlink" href="#searx.engines.wikipedia.request" title="Link to this definition"></a></dt>
<dd><p>Assemble a request (<a class="reference external" href="https://en.wikipedia.org/api/rest_v1/#/Page%20content/get_page_summary__title_">wikipedia rest_v1 summary API</a>).</p>
</dd></dl>
<dl class="py data">
<dt class="sig sig-object py" id="searx.engines.wikipedia.display_type">
<span class="sig-prename descclassname"><span class="pre">searx.engines.wikipedia.</span></span><span class="sig-name descname"><span class="pre">display_type</span></span><em class="property"><span class="w"> </span><span class="p"><span class="pre">=</span></span><span class="w"> </span><span class="pre">['infobox']</span></em><a class="headerlink" href="#searx.engines.wikipedia.display_type" title="Link to this definition"></a></dt>
<dd><p>A list of display types composed from <code class="docutils literal notranslate"><span class="pre">infobox</span></code> and <code class="docutils literal notranslate"><span class="pre">list</span></code>. The latter
one will add a hit to the result list. The first one will show a hit in the
info box. Both values can be set, or one of the two can be set.</p>
</dd></dl>
<dl class="py data">
<dt class="sig sig-object py" id="searx.engines.wikipedia.list_of_wikipedias">
<span class="sig-prename descclassname"><span class="pre">searx.engines.wikipedia.</span></span><span class="sig-name descname"><span class="pre">list_of_wikipedias</span></span><em class="property"><span class="w"> </span><span class="p"><span class="pre">=</span></span><span class="w"> </span><span class="pre">'https://meta.wikimedia.org/wiki/List_of_Wikipedias'</span></em><a class="headerlink" href="#searx.engines.wikipedia.list_of_wikipedias" title="Link to this definition"></a></dt>
<dd><p><a class="reference external" href="https://meta.wikimedia.org/wiki/List_of_Wikipedias">List of all wikipedias</a></p>
</dd></dl>
<dl class="py data">
<dt class="sig sig-object py" id="searx.engines.wikipedia.rest_v1_summary_url">
<span class="sig-prename descclassname"><span class="pre">searx.engines.wikipedia.</span></span><span class="sig-name descname"><span class="pre">rest_v1_summary_url</span></span><em class="property"><span class="w"> </span><span class="p"><span class="pre">=</span></span><span class="w"> </span><span class="pre">'https://{wiki_netloc}/api/rest_v1/page/summary/{title}'</span></em><a class="headerlink" href="#searx.engines.wikipedia.rest_v1_summary_url" title="Link to this definition"></a></dt>
<dd><dl class="simple">
<dt><a class="reference external" href="https://en.wikipedia.org/api/rest_v1/#/Page%20content/get_page_summary__title_">wikipedia rest_v1 summary API</a>:</dt><dd><p>The summary response includes an extract of the first paragraph of the page in
plain text and HTML as well as the type of page. This is useful for page
previews (fka. Hovercards, aka. Popups) on the web and link previews in the
apps.</p>
</dd>
<dt>HTTP <code class="docutils literal notranslate"><span class="pre">Accept-Language</span></code> header (<a class="reference internal" href="#searx.engines.wikipedia.send_accept_language_header" title="searx.engines.wikipedia.send_accept_language_header"><code class="xref py py-obj docutils literal notranslate"><span class="pre">send_accept_language_header</span></code></a>):</dt><dd><p>The desired language variant code for wikis where <a class="reference external" href="https://www.mediawiki.org/wiki/Writing_systems#LanguageConverter">LanguageConverter</a> is
enabled.</p>
</dd>
</dl>
</dd></dl>
<dl class="py data">
<dt class="sig sig-object py" id="searx.engines.wikipedia.send_accept_language_header">
<span class="sig-prename descclassname"><span class="pre">searx.engines.wikipedia.</span></span><span class="sig-name descname"><span class="pre">send_accept_language_header</span></span><em class="property"><span class="w"> </span><span class="p"><span class="pre">=</span></span><span class="w"> </span><span class="pre">True</span></em><a class="headerlink" href="#searx.engines.wikipedia.send_accept_language_header" title="Link to this definition"></a></dt>
<dd><p>The HTTP <code class="docutils literal notranslate"><span class="pre">Accept-Language</span></code> header is needed for wikis where
<a class="reference external" href="https://www.mediawiki.org/wiki/Writing_systems#LanguageConverter">LanguageConverter</a> is enabled.</p>
</dd></dl>
<dl class="py data">
<dt class="sig sig-object py" id="searx.engines.wikipedia.wiki_lc_locale_variants">
<span class="sig-prename descclassname"><span class="pre">searx.engines.wikipedia.</span></span><span class="sig-name descname"><span class="pre">wiki_lc_locale_variants</span></span><em class="property"><span class="w"> </span><span class="p"><span class="pre">=</span></span><span class="w"> </span><span class="pre">{'zh':</span> <span class="pre">('zh-CN',</span> <span class="pre">'zh-HK',</span> <span class="pre">'zh-MO',</span> <span class="pre">'zh-MY',</span> <span class="pre">'zh-SG',</span> <span class="pre">'zh-TW'),</span> <span class="pre">'zh-classical':</span> <span class="pre">('zh-classical',)}</span></em><a class="headerlink" href="#searx.engines.wikipedia.wiki_lc_locale_variants" title="Link to this definition"></a></dt>
<dd><p>Mapping rule of the <a class="reference external" href="https://www.mediawiki.org/wiki/Writing_systems#LanguageConverter">LanguageConverter</a> to map a language and its variants to
a Locale (used in the HTTP <code class="docutils literal notranslate"><span class="pre">Accept-Language</span></code> header). For example see <a class="reference external" href="https://meta.wikimedia.org/wiki/Wikipedias_in_multiple_writing_systems#Chinese">LC
Chinese</a>.</p>
</dd></dl>
<dl class="py data">
<dt class="sig sig-object py" id="searx.engines.wikipedia.wikipedia_article_depth">
<span class="sig-prename descclassname"><span class="pre">searx.engines.wikipedia.</span></span><span class="sig-name descname"><span class="pre">wikipedia_article_depth</span></span><em class="property"><span class="w"> </span><span class="p"><span class="pre">=</span></span><span class="w"> </span><span class="pre">'https://meta.wikimedia.org/wiki/Wikipedia_article_depth'</span></em><a class="headerlink" href="#searx.engines.wikipedia.wikipedia_article_depth" title="Link to this definition"></a></dt>
<dd><p>The <em>editing depth</em> of Wikipedia is one of several possible rough indicators
of the encyclopedia’s collaborative quality, showing how frequently its articles
are updated. The measurement of depth was introduced after some limitations of
the classic measurement of article count were realized.</p>
</dd></dl>
</section>
<section id="module-searx.engines.wikidata">
<span id="wikidata"></span><span id="wikidata-engine"></span><h2><a class="toc-backref" href="#id2" role="doc-backlink">Wikidata</a><a class="headerlink" href="#module-searx.engines.wikidata" title="Link to this heading"></a></h2>
<p>This module implements the Wikidata engine. Some implementations are shared
from <a class="reference internal" href="#wikipedia-engine"><span class="std std-ref">Wikipedia</span></a>.</p>
<dl class="py function">
<dt class="sig sig-object py" id="searx.engines.wikidata.fetch_traits">
<span class="sig-prename descclassname"><span class="pre">searx.engines.wikidata.</span></span><span class="sig-name descname"><span class="pre">fetch_traits</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">engine_traits</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><a class="reference internal" href="../enginelib.html#searx.enginelib.traits.EngineTraits" title="searx.enginelib.traits.EngineTraits"><span class="pre">EngineTraits</span></a></span></em><span class="sig-paren">)</span><a class="reference internal" href="../../../_modules/searx/engines/wikidata.html#fetch_traits"><span class="viewcode-link"><span class="pre">[source]</span></span></a><a class="headerlink" href="#searx.engines.wikidata.fetch_traits" title="Link to this definition"></a></dt>
<dd><p>Uses languages evaluated from <a class="reference internal" href="#searx.engines.wikipedia.fetch_wikimedia_traits" title="searx.engines.wikipedia.fetch_wikimedia_traits"><code class="xref py py-obj docutils literal notranslate"><span class="pre">wikipedia.fetch_wikimedia_traits</span></code></a> and removes</p>
<ul class="simple">
<li><p><code class="docutils literal notranslate"><span class="pre">traits.custom['wiki_netloc']</span></code>: wikidata does not have net-locations for
the languages and the list of all</p></li>
<li><p><code class="docutils literal notranslate"><span class="pre">traits.custom['WIKIPEDIA_LANGUAGES']</span></code>: not used in the wikipedia engine</p></li>
</ul>
</dd></dl>
<dl class="py function">
<dt class="sig sig-object py" id="searx.engines.wikidata.get_thumbnail">
<span class="sig-prename descclassname"><span class="pre">searx.engines.wikidata.</span></span><span class="sig-name descname"><span class="pre">get_thumbnail</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">img_src</span></span></em><span class="sig-paren">)</span><a class="reference internal" href="../../../_modules/searx/engines/wikidata.html#get_thumbnail"><span class="viewcode-link"><span class="pre">[source]</span></span></a><a class="headerlink" href="#searx.engines.wikidata.get_thumbnail" title="Link to this definition"></a></dt>
<dd><p>Get Thumbnail image from wikimedia commons</p>
<p>Images from commons.wikimedia.org are (HTTP) redirected to
upload.wikimedia.org. The redirected URL can be calculated by this
function.</p>
<ul class="simple">
<li><p><a class="reference external" href="https://stackoverflow.com/a/33691240">https://stackoverflow.com/a/33691240</a></p></li>
</ul>
</dd></dl>
<dl class="py data">
<dt class="sig sig-object py" id="searx.engines.wikidata.display_type">
<span class="sig-prename descclassname"><span class="pre">searx.engines.wikidata.</span></span><span class="sig-name descname"><span class="pre">display_type</span></span><em class="property"><span class="w"> </span><span class="p"><span class="pre">=</span></span><span class="w"> </span><span class="pre">['infobox']</span></em><a class="headerlink" href="#searx.engines.wikidata.display_type" title="Link to this definition"></a></dt>
<dd><p>A list of display types composed from <code class="docutils literal notranslate"><span class="pre">infobox</span></code> and <code class="docutils literal notranslate"><span class="pre">list</span></code>. The latter
one will add a hit to the result list. The first one will show a hit in the
info box. Both values can be set, or one of the two can be set.</p>
</dd></dl>
</section>
</section>
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