searxng/dev/engines/engines.html

216 lines
17 KiB
HTML
Raw Blame History

This file contains ambiguous Unicode characters

This file contains Unicode characters that might be confused with other characters. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

<!DOCTYPE html>
<html lang="en" data-content_root="../../">
<head>
<meta charset="utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>SearXNGs engines loader &#8212; SearXNG Documentation (2024.11.8+2fbf15ecc)</title>
<link rel="stylesheet" type="text/css" href="../../_static/pygments.css?v=4f649999" />
<link rel="stylesheet" type="text/css" href="../../_static/searxng.css?v=52e4ff28" />
<link rel="stylesheet" type="text/css" href="../../_static/autodoc_pydantic.css" />
<script src="../../_static/documentation_options.js?v=c97bae97"></script>
<script src="../../_static/doctools.js?v=9a2dae69"></script>
<script src="../../_static/sphinx_highlight.js?v=dc90522c"></script>
<script data-project="searxng" data-version="2024.11.8+2fbf15ecc" src="../../_static/describe_version.js?v=fa7f30d0"></script>
<link rel="index" title="Index" href="../../genindex.html" />
<link rel="search" title="Search" href="../../search.html" />
<link rel="next" title="Engine Overview" href="engine_overview.html" />
<link rel="prev" title="Engine Library" href="enginelib.html" />
</head><body>
<div class="related" role="navigation" aria-label="Related">
<h3>Navigation</h3>
<ul>
<li class="right" style="margin-right: 10px">
<a href="../../genindex.html" title="General Index"
accesskey="I">index</a></li>
<li class="right" >
<a href="../../py-modindex.html" title="Python Module Index"
>modules</a> |</li>
<li class="right" >
<a href="engine_overview.html" title="Engine Overview"
accesskey="N">next</a> |</li>
<li class="right" >
<a href="enginelib.html" title="Engine Library"
accesskey="P">previous</a> |</li>
<li class="nav-item nav-item-0"><a href="../../index.html">SearXNG Documentation (2024.11.8+2fbf15ecc)</a> &#187;</li>
<li class="nav-item nav-item-1"><a href="../index.html" >Developer documentation</a> &#187;</li>
<li class="nav-item nav-item-2"><a href="index.html" accesskey="U">Engine Implementations</a> &#187;</li>
<li class="nav-item nav-item-this"><a href="">SearXNGs engines loader</a></li>
</ul>
</div>
<div class="document">
<div class="documentwrapper">
<div class="bodywrapper">
<div class="body" role="main">
<section id="module-searx.engines">
<span id="searxng-s-engines-loader"></span><span id="searx-engines-loader"></span><h1>SearXNGs engines loader<a class="headerlink" href="#module-searx.engines" title="Link to this heading"></a></h1>
<p>Load and initialize the <code class="docutils literal notranslate"><span class="pre">engines</span></code>, see <a class="reference internal" href="#searx.engines.load_engines" title="searx.engines.load_engines"><code class="xref py py-func docutils literal notranslate"><span class="pre">load_engines()</span></code></a> and register
<a class="reference internal" href="#searx.engines.engine_shortcuts" title="searx.engines.engine_shortcuts"><code class="xref py py-obj docutils literal notranslate"><span class="pre">engine_shortcuts</span></code></a>.</p>
<p>usage:</p>
<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">load_engines</span><span class="p">(</span> <span class="n">settings</span><span class="p">[</span><span class="s1">&#39;engines&#39;</span><span class="p">]</span> <span class="p">)</span>
</pre></div>
</div>
<dl class="py function">
<dt class="sig sig-object py" id="searx.engines.is_missing_required_attributes">
<span class="sig-prename descclassname"><span class="pre">searx.engines.</span></span><span class="sig-name descname"><span class="pre">is_missing_required_attributes</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">engine</span></span></em><span class="sig-paren">)</span><a class="reference internal" href="../../_modules/searx/engines.html#is_missing_required_attributes"><span class="viewcode-link"><span class="pre">[source]</span></span></a><a class="headerlink" href="#searx.engines.is_missing_required_attributes" title="Link to this definition"></a></dt>
<dd><p>An attribute is required when its name doesnt start with <code class="docutils literal notranslate"><span class="pre">_</span></code> (underline).
Required attributes must not be <code class="docutils literal notranslate"><span class="pre">None</span></code>.</p>
</dd></dl>
<dl class="py function">
<dt class="sig sig-object py" id="searx.engines.load_engine">
<span class="sig-prename descclassname"><span class="pre">searx.engines.</span></span><span class="sig-name descname"><span class="pre">load_engine</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">engine_data</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#dict" title="(in Python v3.13)"><span class="pre">dict</span></a></span></em><span class="sig-paren">)</span> <span class="sig-return"><span class="sig-return-icon">&#x2192;</span> <span class="sig-return-typehint"><a class="reference internal" href="enginelib.html#searx.enginelib.Engine" title="searx.enginelib.Engine"><span class="pre">Engine</span></a><span class="w"> </span><span class="p"><span class="pre">|</span></span><span class="w"> </span><a class="reference external" href="https://docs.python.org/3/library/types.html#types.ModuleType" title="(in Python v3.13)"><span class="pre">types.ModuleType</span></a><span class="w"> </span><span class="p"><span class="pre">|</span></span><span class="w"> </span><a class="reference external" href="https://docs.python.org/3/library/constants.html#None" title="(in Python v3.13)"><span class="pre">None</span></a></span></span><a class="reference internal" href="../../_modules/searx/engines.html#load_engine"><span class="viewcode-link"><span class="pre">[source]</span></span></a><a class="headerlink" href="#searx.engines.load_engine" title="Link to this definition"></a></dt>
<dd><p>Load engine from <code class="docutils literal notranslate"><span class="pre">engine_data</span></code>.</p>
<dl class="field-list simple">
<dt class="field-odd">Parameters<span class="colon">:</span></dt>
<dd class="field-odd"><p><strong>engine_data</strong> (<a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#dict" title="(in Python v3.13)"><em>dict</em></a>) Attributes from YAML <code class="docutils literal notranslate"><span class="pre">settings:engines/&lt;engine&gt;</span></code></p>
</dd>
<dt class="field-even">Returns<span class="colon">:</span></dt>
<dd class="field-even"><p>initialized namespace of the <code class="docutils literal notranslate"><span class="pre">&lt;engine&gt;</span></code>.</p>
</dd>
</dl>
<ol class="arabic simple">
<li><p>create a namespace and load module of the <code class="docutils literal notranslate"><span class="pre">&lt;engine&gt;</span></code></p></li>
<li><p>update namespace with the defaults from <code class="xref py py-obj docutils literal notranslate"><span class="pre">ENGINE_DEFAULT_ARGS</span></code></p></li>
<li><p>update namespace with values from <code class="docutils literal notranslate"><span class="pre">engine_data</span></code></p></li>
</ol>
<p>If engine <em>is active</em>, return namespace of the engine, otherwise return
<code class="docutils literal notranslate"><span class="pre">None</span></code>.</p>
<p>This function also returns <code class="docutils literal notranslate"><span class="pre">None</span></code> if initialization of the namespace fails
for one of the following reasons:</p>
<ul class="simple">
<li><p>engine name contains underscore</p></li>
<li><p>engine name is not lowercase</p></li>
<li><p>required attribute is not set <a class="reference internal" href="#searx.engines.is_missing_required_attributes" title="searx.engines.is_missing_required_attributes"><code class="xref py py-func docutils literal notranslate"><span class="pre">is_missing_required_attributes()</span></code></a></p></li>
</ul>
</dd></dl>
<dl class="py function">
<dt class="sig sig-object py" id="searx.engines.load_engines">
<span class="sig-prename descclassname"><span class="pre">searx.engines.</span></span><span class="sig-name descname"><span class="pre">load_engines</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">engine_list</span></span></em><span class="sig-paren">)</span><a class="reference internal" href="../../_modules/searx/engines.html#load_engines"><span class="viewcode-link"><span class="pre">[source]</span></span></a><a class="headerlink" href="#searx.engines.load_engines" title="Link to this definition"></a></dt>
<dd><p>usage: <code class="docutils literal notranslate"><span class="pre">engine_list</span> <span class="pre">=</span> <span class="pre">settings['engines']</span></code></p>
</dd></dl>
<dl class="py function">
<dt class="sig sig-object py" id="searx.engines.using_tor_proxy">
<span class="sig-prename descclassname"><span class="pre">searx.engines.</span></span><span class="sig-name descname"><span class="pre">using_tor_proxy</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">engine</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.Engine" title="searx.enginelib.Engine"><span class="pre">Engine</span></a><span class="w"> </span><span class="p"><span class="pre">|</span></span><span class="w"> </span><a class="reference external" href="https://docs.python.org/3/library/types.html#types.ModuleType" title="(in Python v3.13)"><span class="pre">types.ModuleType</span></a></span></em><span class="sig-paren">)</span><a class="reference internal" href="../../_modules/searx/engines.html#using_tor_proxy"><span class="viewcode-link"><span class="pre">[source]</span></span></a><a class="headerlink" href="#searx.engines.using_tor_proxy" title="Link to this definition"></a></dt>
<dd><p>Return True if the engine configuration declares to use Tor.</p>
</dd></dl>
<dl class="py data">
<dt class="sig sig-object py" id="searx.engines.engine_shortcuts">
<span class="sig-prename descclassname"><span class="pre">searx.engines.</span></span><span class="sig-name descname"><span class="pre">engine_shortcuts</span></span><a class="headerlink" href="#searx.engines.engine_shortcuts" title="Link to this definition"></a></dt>
<dd><p>Simple map of registered <em>shortcuts</em> to name of the engine (or <code class="docutils literal notranslate"><span class="pre">None</span></code>).</p>
<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">engine_shortcuts</span><span class="p">[</span><span class="n">engine</span><span class="o">.</span><span class="n">shortcut</span><span class="p">]</span> <span class="o">=</span> <span class="n">engine</span><span class="o">.</span><span class="n">name</span>
</pre></div>
</div>
<dl class="field-list simple">
</dl>
</dd></dl>
</section>
<div class="clearer"></div>
</div>
</div>
</div>
<span id="sidebar-top"></span>
<div class="sphinxsidebar" role="navigation" aria-label="Main">
<div class="sphinxsidebarwrapper">
<p class="logo"><a href="../../index.html">
<img class="logo" src="../../_static/searxng-wordmark.svg" alt="Logo of SearXNG"/>
</a></p>
<h3><a href="../../index.html">Table of Contents</a></h3>
<ul class="current">
<li class="toctree-l1"><a class="reference internal" href="../../user/index.html">User information</a></li>
<li class="toctree-l1"><a class="reference internal" href="../../own-instance.html">Why use a private instance?</a></li>
<li class="toctree-l1"><a class="reference internal" href="../../admin/index.html">Administrator documentation</a></li>
<li class="toctree-l1 current"><a class="reference internal" href="../index.html">Developer documentation</a><ul class="current">
<li class="toctree-l2"><a class="reference internal" href="../quickstart.html">Development Quickstart</a></li>
<li class="toctree-l2"><a class="reference internal" href="../rtm_asdf.html">Runtime Management</a></li>
<li class="toctree-l2"><a class="reference internal" href="../contribution_guide.html">How to contribute</a></li>
<li class="toctree-l2 current"><a class="reference internal" href="index.html">Engine Implementations</a><ul class="current">
<li class="toctree-l3"><a class="reference internal" href="enginelib.html">Engine Library</a></li>
<li class="toctree-l3 current"><a class="current reference internal" href="#">SearXNGs engines loader</a><ul>
<li class="toctree-l4"><a class="reference internal" href="#searx.engines.is_missing_required_attributes"><code class="docutils literal notranslate"><span class="pre">is_missing_required_attributes()</span></code></a></li>
<li class="toctree-l4"><a class="reference internal" href="#searx.engines.load_engine"><code class="docutils literal notranslate"><span class="pre">load_engine()</span></code></a></li>
<li class="toctree-l4"><a class="reference internal" href="#searx.engines.load_engines"><code class="docutils literal notranslate"><span class="pre">load_engines()</span></code></a></li>
<li class="toctree-l4"><a class="reference internal" href="#searx.engines.using_tor_proxy"><code class="docutils literal notranslate"><span class="pre">using_tor_proxy()</span></code></a></li>
<li class="toctree-l4"><a class="reference internal" href="#searx.engines.engine_shortcuts"><code class="docutils literal notranslate"><span class="pre">engine_shortcuts</span></code></a></li>
</ul>
</li>
<li class="toctree-l3"><a class="reference internal" href="engine_overview.html">Engine Overview</a></li>
<li class="toctree-l3"><a class="reference internal" href="index.html#engine-types">Engine Types</a></li>
</ul>
</li>
<li class="toctree-l2"><a class="reference internal" href="../search_api.html">Search API</a></li>
<li class="toctree-l2"><a class="reference internal" href="../plugins.html">Plugins</a></li>
<li class="toctree-l2"><a class="reference internal" href="../translation.html">Translation</a></li>
<li class="toctree-l2"><a class="reference internal" href="../lxcdev.html">Developing in Linux Containers</a></li>
<li class="toctree-l2"><a class="reference internal" href="../makefile.html">Makefile &amp; <code class="docutils literal notranslate"><span class="pre">./manage</span></code></a></li>
<li class="toctree-l2"><a class="reference internal" href="../reST.html">reST primer</a></li>
<li class="toctree-l2"><a class="reference internal" href="../searxng_extra/index.html">Tooling box <code class="docutils literal notranslate"><span class="pre">searxng_extra</span></code></a></li>
</ul>
</li>
<li class="toctree-l1"><a class="reference internal" href="../../utils/index.html">DevOps tooling box</a></li>
<li class="toctree-l1"><a class="reference internal" href="../../src/index.html">Source-Code</a></li>
</ul>
<h3>Project Links</h3>
<ul>
<li><a href="https://github.com/searxng/searxng/tree/master">Source</a>
<li><a href="https://github.com/searxng/searxng/wiki">Wiki</a>
<li><a href="https://searx.space">Public instances</a>
<li><a href="https://github.com/searxng/searxng/issues">Issue Tracker</a>
</ul><h3>Navigation</h3>
<ul>
<li><a href="../../index.html">Overview</a>
<ul>
<li><a href="../index.html">Developer documentation</a>
<ul>
<li><a href="index.html">Engine Implementations</a>
<ul>
<li>Previous: <a href="enginelib.html" title="previous chapter">Engine Library</a>
<li>Next: <a href="engine_overview.html" title="next chapter">Engine Overview</a></ul>
</li></ul>
</li>
</ul>
</li>
</ul>
<search id="searchbox" style="display: none" role="search">
<h3 id="searchlabel">Quick search</h3>
<div class="searchformwrapper">
<form class="search" action="../../search.html" method="get">
<input type="text" name="q" aria-labelledby="searchlabel" autocomplete="off" autocorrect="off" autocapitalize="off" spellcheck="false"/>
<input type="submit" value="Go" />
</form>
</div>
</search>
<script>document.getElementById('searchbox').style.display = "block"</script>
<div role="note" aria-label="source link">
<h3>This Page</h3>
<ul class="this-page-menu">
<li><a href="../../_sources/dev/engines/engines.rst.txt"
rel="nofollow">Show Source</a></li>
</ul>
</div>
</div>
</div>
<div class="clearer"></div>
</div>
<div class="footer" role="contentinfo">
&#169; Copyright SearXNG team.
</div>
</body>
</html>