<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>Engine overview — searx 0.8.0 documentation</title> <link rel="stylesheet" href="../_static/style.css" type="text/css" /> <link rel="stylesheet" href="../_static/pygments.css" type="text/css" /> <script type="text/javascript"> var DOCUMENTATION_OPTIONS = { URL_ROOT: '../', VERSION: '0.8.0', COLLAPSE_INDEX: false, FILE_SUFFIX: '.html', HAS_SOURCE: true }; </script> <script type="text/javascript" src="../_static/jquery.js"></script> <script type="text/javascript" src="../_static/underscore.js"></script> <script type="text/javascript" src="../_static/doctools.js"></script> <link rel="top" title="searx 0.8.0 documentation" href="../index.html" /> <link rel="next" title="Search API" href="search_api.html" /> <link rel="prev" title="Installation" href="install/installation.html" /> <link media="only screen and (max-device-width: 480px)" href="../_static/small_flask.css" type= "text/css" rel="stylesheet" /> <meta name="viewport" content="width=device-width, initial-scale=0.9, maximum-scale=0.9"> </head> <body role="document"> <div class="document"> <div class="documentwrapper"> <div class="bodywrapper"> <div class="body" role="main"> <div class="section" id="engine-overview"> <h1><a class="toc-backref" href="#id2">Engine overview</a><a class="headerlink" href="#engine-overview" title="Permalink to this headline">¶</a></h1> <p>searx is a <a class="reference external" href="https://en.wikipedia.org/wiki/Metasearch_engine">metasearch-engine</a>, so it is using different search engines to provide better results.</p> <p>Because there is no general search-api which can be used for every search-engine, there must be build an adapter between searx and the external search-engine. This adapters are stored in the folder <a class="reference external" href="https://github.com/asciimoo/searx/tree/master/searx/engines">*searx/engines*</a>, and this site is build to make an general documentation about this engines</p> <div class="contents topic" id="contents"> <p class="topic-title first">Contents</p> <ul class="simple"> <li><a class="reference internal" href="#engine-overview" id="id2">Engine overview</a><ul> <li><a class="reference internal" href="#general-engine-configuration" id="id3">general engine configuration</a><ul> <li><a class="reference internal" href="#engine-file" id="id4">engine-file</a></li> <li><a class="reference internal" href="#settings-yml" id="id5">settings.yml</a></li> <li><a class="reference internal" href="#overrides" id="id6">overrides</a></li> <li><a class="reference internal" href="#example-code" id="id7">example-code</a></li> </ul> </li> <li><a class="reference internal" href="#doing-request" id="id8">doing request</a><ul> <li><a class="reference internal" href="#passed-arguments" id="id9">passed arguments</a></li> <li><a class="reference internal" href="#parsed-arguments" id="id10">parsed arguments</a></li> <li><a class="reference internal" href="#id1" id="id11">example-code</a></li> </ul> </li> <li><a class="reference internal" href="#returning-results" id="id12">returning results</a><ul> <li><a class="reference internal" href="#default" id="id13">default</a></li> <li><a class="reference internal" href="#images" id="id14">images</a></li> <li><a class="reference internal" href="#videos" id="id15">videos</a></li> <li><a class="reference internal" href="#torrent" id="id16">torrent</a></li> <li><a class="reference internal" href="#map" id="id17">map</a></li> </ul> </li> </ul> </li> </ul> </div> <div class="section" id="general-engine-configuration"> <h2><a class="toc-backref" href="#id3">general engine configuration</a><a class="headerlink" href="#general-engine-configuration" title="Permalink to this headline">¶</a></h2> <p>It is required to tell searx what results can the engine provide. The arguments can be inserted in the engine file, or in the settings file (normally <code class="docutils literal"><span class="pre">settings.yml</span></code>). The arguments in the settings file override the one in the engine file.</p> <p>Really, it is for most options no difference if there are contained in the engine-file or in the settings. But there is a standard where to place specific arguments by default.</p> <div class="section" id="engine-file"> <h3><a class="toc-backref" href="#id4">engine-file</a><a class="headerlink" href="#engine-file" title="Permalink to this headline">¶</a></h3> <table border="1" class="docutils"> <colgroup> <col width="29%" /> <col width="15%" /> <col width="56%" /> </colgroup> <thead valign="bottom"> <tr class="row-odd"><th class="head">argument</th> <th class="head">type</th> <th class="head">information</th> </tr> </thead> <tbody valign="top"> <tr class="row-even"><td>categories</td> <td>list</td> <td>pages, in which the engine is working</td> </tr> <tr class="row-odd"><td>paging</td> <td>boolean</td> <td>support multible pages</td> </tr> <tr class="row-even"><td>language_support</td> <td>boolean</td> <td>support language choosing</td> </tr> </tbody> </table> </div> <div class="section" id="settings-yml"> <h3><a class="toc-backref" href="#id5">settings.yml</a><a class="headerlink" href="#settings-yml" title="Permalink to this headline">¶</a></h3> <table border="1" class="docutils"> <colgroup> <col width="17%" /> <col width="14%" /> <col width="68%" /> </colgroup> <thead valign="bottom"> <tr class="row-odd"><th class="head">argument</th> <th class="head">type</th> <th class="head">information</th> </tr> </thead> <tbody valign="top"> <tr class="row-even"><td>name</td> <td>string</td> <td>name of search-engine</td> </tr> <tr class="row-odd"><td>engine</td> <td>string</td> <td>name of searx-engine (filename without .py)</td> </tr> <tr class="row-even"><td>shortcut</td> <td>string</td> <td>shortcut of search-engine</td> </tr> <tr class="row-odd"><td>timeout</td> <td>string</td> <td>specific timeout for search-engine</td> </tr> </tbody> </table> </div> <div class="section" id="overrides"> <h3><a class="toc-backref" href="#id6">overrides</a><a class="headerlink" href="#overrides" title="Permalink to this headline">¶</a></h3> <p>There are some options, with have default values in the engine, but are often overwritten by the settings. If the option is assigned in the engine-file with <code class="docutils literal"><span class="pre">None</span></code> it has to be redefined in the settings, otherwise searx is not starting with that engine.</p> <p>The naming of that overrides can be wathever you want. But we recommend the using of already used overrides if possible:</p> <table border="1" class="docutils"> <colgroup> <col width="24%" /> <col width="11%" /> <col width="65%" /> </colgroup> <thead valign="bottom"> <tr class="row-odd"><th class="head">argument</th> <th class="head">type</th> <th class="head">information</th> </tr> </thead> <tbody valign="top"> <tr class="row-even"><td>base_url</td> <td>string</td> <td>base-url, can be overwrite to use same engine on other url</td> </tr> <tr class="row-odd"><td>number_of_results</td> <td>int</td> <td>maximum number of results per request</td> </tr> <tr class="row-even"><td>language</td> <td>string</td> <td>ISO code of language and country like en_US</td> </tr> <tr class="row-odd"><td>api_key</td> <td>string</td> <td>api-key if required by engine</td> </tr> </tbody> </table> </div> <div class="section" id="example-code"> <h3><a class="toc-backref" href="#id7">example-code</a><a class="headerlink" href="#example-code" title="Permalink to this headline">¶</a></h3> <div class="code python highlight-python"><div class="highlight"><pre><span class="c"># engine dependent config</span> <span class="n">categories</span> <span class="o">=</span> <span class="p">[</span><span class="s">'general'</span><span class="p">]</span> <span class="n">paging</span> <span class="o">=</span> <span class="bp">True</span> <span class="n">language_support</span> <span class="o">=</span> <span class="bp">True</span> </pre></div> </div> </div> </div> <div class="section" id="doing-request"> <h2><a class="toc-backref" href="#id8">doing request</a><a class="headerlink" href="#doing-request" title="Permalink to this headline">¶</a></h2> <p>To perform a search you have to specific at least a url on which the request is performing</p> <div class="section" id="passed-arguments"> <h3><a class="toc-backref" href="#id9">passed arguments</a><a class="headerlink" href="#passed-arguments" title="Permalink to this headline">¶</a></h3> <p>This arguments can be used to calculate the search-query. Furthermore, some of that parameters are filled with default values which can be changed for special purpose.</p> <table border="1" class="docutils"> <colgroup> <col width="21%" /> <col width="11%" /> <col width="68%" /> </colgroup> <thead valign="bottom"> <tr class="row-odd"><th class="head">argument</th> <th class="head">type</th> <th class="head">default-value, informations</th> </tr> </thead> <tbody valign="top"> <tr class="row-even"><td>url</td> <td>string</td> <td><code class="docutils literal"><span class="pre">''</span></code></td> </tr> <tr class="row-odd"><td>method</td> <td>string</td> <td><code class="docutils literal"><span class="pre">'GET'</span></code></td> </tr> <tr class="row-even"><td>headers</td> <td>set</td> <td><code class="docutils literal"><span class="pre">{}</span></code></td> </tr> <tr class="row-odd"><td>data</td> <td>set</td> <td><code class="docutils literal"><span class="pre">{}</span></code></td> </tr> <tr class="row-even"><td>cookies</td> <td>set</td> <td><code class="docutils literal"><span class="pre">{}</span></code></td> </tr> <tr class="row-odd"><td>verify</td> <td>boolean</td> <td><code class="docutils literal"><span class="pre">True</span></code></td> </tr> <tr class="row-even"><td>headers.User-Agent</td> <td>string</td> <td>a random User-Agent</td> </tr> <tr class="row-odd"><td>category</td> <td>string</td> <td>current category, like <code class="docutils literal"><span class="pre">'general'</span></code></td> </tr> <tr class="row-even"><td>started</td> <td>datetime</td> <td>current date-time</td> </tr> <tr class="row-odd"><td>pageno</td> <td>int</td> <td>current pagenumber</td> </tr> <tr class="row-even"><td>language</td> <td>string</td> <td>specific language code like <code class="docutils literal"><span class="pre">'en_US'</span></code>, or <code class="docutils literal"><span class="pre">'all'</span></code> if unspecified</td> </tr> </tbody> </table> </div> <div class="section" id="parsed-arguments"> <h3><a class="toc-backref" href="#id10">parsed arguments</a><a class="headerlink" href="#parsed-arguments" title="Permalink to this headline">¶</a></h3> <p>The function <code class="docutils literal"><span class="pre">def</span> <span class="pre">request(query,</span> <span class="pre">params):</span></code> is always returning the <code class="docutils literal"><span class="pre">params</span></code> variable back. Inside searx, the following paramters can be used to specific a search-request:</p> <table border="1" class="docutils"> <colgroup> <col width="15%" /> <col width="14%" /> <col width="72%" /> </colgroup> <thead valign="bottom"> <tr class="row-odd"><th class="head">argument</th> <th class="head">type</th> <th class="head">information</th> </tr> </thead> <tbody valign="top"> <tr class="row-even"><td>url</td> <td>string</td> <td>requested url</td> </tr> <tr class="row-odd"><td>method</td> <td>string</td> <td>HTTP request methode</td> </tr> <tr class="row-even"><td>headers</td> <td>set</td> <td>HTTP header informations</td> </tr> <tr class="row-odd"><td>data</td> <td>set</td> <td>HTTP data informations (parsed if <code class="docutils literal"><span class="pre">method</span> <span class="pre">!=</span> <span class="pre">'GET'</span></code>)</td> </tr> <tr class="row-even"><td>cookies</td> <td>set</td> <td>HTTP cookies</td> </tr> <tr class="row-odd"><td>verify</td> <td>boolean</td> <td>Performing SSL-Validity check</td> </tr> </tbody> </table> </div> <div class="section" id="id1"> <h3><a class="toc-backref" href="#id11">example-code</a><a class="headerlink" href="#id1" title="Permalink to this headline">¶</a></h3> <div class="code python highlight-python"><div class="highlight"><pre><span class="c"># search-url</span> <span class="n">base_url</span> <span class="o">=</span> <span class="s">'https://example.com/'</span> <span class="n">search_string</span> <span class="o">=</span> <span class="s">'search?{query}&page={page}'</span> <span class="c"># do search-request</span> <span class="k">def</span> <span class="nf">request</span><span class="p">(</span><span class="n">query</span><span class="p">,</span> <span class="n">params</span><span class="p">):</span> <span class="n">search_path</span> <span class="o">=</span> <span class="n">search_string</span><span class="o">.</span><span class="n">format</span><span class="p">(</span> <span class="n">query</span><span class="o">=</span><span class="n">urlencode</span><span class="p">({</span><span class="s">'q'</span><span class="p">:</span> <span class="n">query</span><span class="p">}),</span> <span class="n">page</span><span class="o">=</span><span class="n">params</span><span class="p">[</span><span class="s">'pageno'</span><span class="p">])</span> <span class="n">params</span><span class="p">[</span><span class="s">'url'</span><span class="p">]</span> <span class="o">=</span> <span class="n">base_url</span> <span class="o">+</span> <span class="n">search_path</span> <span class="k">return</span> <span class="n">params</span> </pre></div> </div> </div> </div> <div class="section" id="returning-results"> <h2><a class="toc-backref" href="#id12">returning results</a><a class="headerlink" href="#returning-results" title="Permalink to this headline">¶</a></h2> <p>Searx has the possiblity to return results in different media-types. Currently the following media-types are supported:</p> <ul class="simple"> <li>default</li> <li>images</li> <li>videos</li> <li>torrent</li> <li>map</li> </ul> <p>to set another media-type as default, you must set the parameter <code class="docutils literal"><span class="pre">template</span></code> to the required type.</p> <div class="section" id="default"> <h3><a class="toc-backref" href="#id13">default</a><a class="headerlink" href="#default" title="Permalink to this headline">¶</a></h3> <table border="1" class="docutils"> <colgroup> <col width="13%" /> <col width="87%" /> </colgroup> <thead valign="bottom"> <tr class="row-odd"><th class="head">result-parameter</th> <th class="head">information</th> </tr> </thead> <tbody valign="top"> <tr class="row-even"><td>url</td> <td>string, which is representing the url of the result</td> </tr> <tr class="row-odd"><td>title</td> <td>string, which is representing the title of the result</td> </tr> <tr class="row-even"><td>content</td> <td>string, which is giving a general result-text</td> </tr> <tr class="row-odd"><td>publishedDate</td> <td><a class="reference external" href="https://docs.python.org/2/library/datetime.html#datetime-objects">datetime.datetime</a>, represent when the result is published</td> </tr> </tbody> </table> </div> <div class="section" id="images"> <h3><a class="toc-backref" href="#id14">images</a><a class="headerlink" href="#images" title="Permalink to this headline">¶</a></h3> <p>to use this template, the parameter</p> <table border="1" class="docutils"> <colgroup> <col width="11%" /> <col width="89%" /> </colgroup> <thead valign="bottom"> <tr class="row-odd"><th class="head">result-parameter</th> <th class="head">information</th> </tr> </thead> <tbody valign="top"> <tr class="row-even"><td>template</td> <td>is set to <code class="docutils literal"><span class="pre">images.html</span></code></td> </tr> <tr class="row-odd"><td>url</td> <td>string, which is representing the url to the result site</td> </tr> <tr class="row-even"><td>title</td> <td>string, which is representing the title of the result <em>(partly implemented)</em></td> </tr> <tr class="row-odd"><td>content</td> <td><em>(partly implemented)</em></td> </tr> <tr class="row-even"><td>publishedDate</td> <td><a class="reference external" href="https://docs.python.org/2/library/datetime.html#datetime-objects">datetime.datetime</a>, represent when the result is published <em>(partly implemented)</em></td> </tr> <tr class="row-odd"><td>img_src</td> <td>string, which is representing the url to the result image</td> </tr> <tr class="row-even"><td>thumbnail_src</td> <td>string, which is representing the url to a small-preview image</td> </tr> </tbody> </table> </div> <div class="section" id="videos"> <h3><a class="toc-backref" href="#id15">videos</a><a class="headerlink" href="#videos" title="Permalink to this headline">¶</a></h3> <table border="1" class="docutils"> <colgroup> <col width="13%" /> <col width="87%" /> </colgroup> <thead valign="bottom"> <tr class="row-odd"><th class="head">result-parameter</th> <th class="head">information</th> </tr> </thead> <tbody valign="top"> <tr class="row-even"><td>template</td> <td>is set to <code class="docutils literal"><span class="pre">videos.html</span></code></td> </tr> <tr class="row-odd"><td>url</td> <td>string, which is representing the url of the result</td> </tr> <tr class="row-even"><td>title</td> <td>string, which is representing the title of the result</td> </tr> <tr class="row-odd"><td>content</td> <td><em>(not implemented yet)</em></td> </tr> <tr class="row-even"><td>publishedDate</td> <td><a class="reference external" href="https://docs.python.org/2/library/datetime.html#datetime-objects">datetime.datetime</a>, represent when the result is published</td> </tr> <tr class="row-odd"><td>thumbnail</td> <td>string, which is representing the url to a small-preview image</td> </tr> </tbody> </table> </div> <div class="section" id="torrent"> <h3><a class="toc-backref" href="#id16">torrent</a><a class="headerlink" href="#torrent" title="Permalink to this headline">¶</a></h3> <table border="1" class="docutils"> <colgroup> <col width="11%" /> <col width="89%" /> </colgroup> <tbody valign="top"> <tr class="row-odd"><td>result-parameter</td> <td>information</td> </tr> <tr class="row-even"><td>template</td> <td>is set to <code class="docutils literal"><span class="pre">`torrent.html`</span></code></td> </tr> <tr class="row-odd"><td>url</td> <td>string, which is representing the url of the result</td> </tr> <tr class="row-even"><td>title</td> <td>string, which is representing the title of the result</td> </tr> <tr class="row-odd"><td>content</td> <td>string, which is giving a general result-text</td> </tr> <tr class="row-even"><td>publishedDate</td> <td>[datetime.datetime](<a class="reference external" href="https://docs.python.org/2/library/datetime.html#datetime-objects">https://docs.python.org/2/library/datetime.html#datetime-objects</a>), represent when the result is published _(not implemented yet)_</td> </tr> <tr class="row-odd"><td>seed</td> <td>int, number of seeder</td> </tr> <tr class="row-even"><td>leech</td> <td>int, number of leecher</td> </tr> <tr class="row-odd"><td>filesize</td> <td>int, size of file in bytes</td> </tr> <tr class="row-even"><td>files</td> <td>int, number of files</td> </tr> <tr class="row-odd"><td>magnetlink</td> <td>string, which is the [magnetlink](<a class="reference external" href="https://en.wikipedia.org/wiki/Magnet_URI_scheme">https://en.wikipedia.org/wiki/Magnet_URI_scheme</a>) of the result</td> </tr> <tr class="row-even"><td>torrentfile</td> <td>string, which is the torrentfile of the result</td> </tr> </tbody> </table> </div> <div class="section" id="map"> <h3><a class="toc-backref" href="#id17">map</a><a class="headerlink" href="#map" title="Permalink to this headline">¶</a></h3> <table border="1" class="docutils"> <colgroup> <col width="16%" /> <col width="84%" /> </colgroup> <thead valign="bottom"> <tr class="row-odd"><th class="head">result-parameter</th> <th class="head">information</th> </tr> </thead> <tbody valign="top"> <tr class="row-even"><td>url</td> <td>string, which is representing the url of the result</td> </tr> <tr class="row-odd"><td>title</td> <td>string, which is representing the title of the result</td> </tr> <tr class="row-even"><td>content</td> <td>string, which is giving a general result-text</td> </tr> <tr class="row-odd"><td>publishedDate</td> <td><a class="reference external" href="https://docs.python.org/2/library/datetime.html#datetime-objects">datetime.datetime</a>, represent when the result is published</td> </tr> <tr class="row-even"><td>latitude</td> <td>latitude of result (in decimal format)</td> </tr> <tr class="row-odd"><td>longitude</td> <td>longitude of result (in decimal format)</td> </tr> <tr class="row-even"><td>boundingbox</td> <td>boundingbox of result (array of 4. values <code class="docutils literal"><span class="pre">[lat-min,</span> <span class="pre">lat-max,</span> <span class="pre">lon-min,</span> <span class="pre">lon-max]</span></code>)</td> </tr> <tr class="row-odd"><td>geojson</td> <td>geojson of result (<a class="reference external" href="http://geojson.org">http://geojson.org</a>)</td> </tr> <tr class="row-even"><td>osm.type</td> <td>type of osm-object (if OSM-Result)</td> </tr> <tr class="row-odd"><td>osm.id</td> <td>id of osm-object (if OSM-Result)</td> </tr> <tr class="row-even"><td>address.name</td> <td>name of object</td> </tr> <tr class="row-odd"><td>address.road</td> <td>street adress of object</td> </tr> <tr class="row-even"><td>address.house_number</td> <td>house number of object</td> </tr> <tr class="row-odd"><td>address.locality</td> <td>city, place of object</td> </tr> <tr class="row-even"><td>address.postcode</td> <td>postcode of object</td> </tr> <tr class="row-odd"><td>address.country</td> <td>country of object</td> </tr> </tbody> </table> </div> </div> </div> </div> </div> </div> <div class="sphinxsidebar" role="navigation" aria-label="main navigation"> <div class="sphinxsidebarwrapper"><div class="sidebar_container body"> <h1>Searx</h1> <ul> <li><a href="../index.html">Home</a></li> <li><a href="https://github.com/asciimoo/searx">Source</a></li> <li><a href="https://github.com/asciimoo/searx/wiki">Wiki</a></li> <li><a href="https://github.com/asciimoo/searx/wiki/Searx-instances">Public instances</a></li> </ul> <hr /> <ul> <li><a href="https://twitter.com/Searx_engine">Twitter</a></li> <li><a href="https://flattr.com/submit/auto?user_id=asciimoo&url=https://github.com/asciimoo/searx&title=searx&language=&tags=github&category=software">Flattr</a></li> <li><a href="https://gratipay.com/searx">Gratipay</a></li> </ul> </div> </div> </div> <div class="clearer"></div> </div> <div class="footer"> © 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