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<article role="main" id="furo-main-content">
<h1>Source code for searx.settings_loader</h1><div class="highlight"><pre>
<span></span><span class="c1"># SPDX-License-Identifier: AGPL-3.0-or-later</span>
<span class="sd">&quot;&quot;&quot;Implementations for loading configurations from YAML files. This essentially</span>
<span class="sd">includes the configuration of the (:ref:`SearXNG appl &lt;searxng settings.yml&gt;`)</span>
<span class="sd">server. The default configuration for the application server is loaded from the</span>
<span class="sd">:origin:`DEFAULT_SETTINGS_FILE &lt;searx/settings.yml&gt;`. This default</span>
<span class="sd">configuration can be completely replaced or :ref:`customized individually</span>
<span class="sd">&lt;use_default_settings.yml&gt;` and the ``SEARXNG_SETTINGS_PATH`` environment</span>
<span class="sd">variable can be used to set the location from which the local customizations are</span>
<span class="sd">to be loaded. The rules used for this can be found in the</span>
<span class="sd">:py:obj:`get_user_cfg_folder` function.</span>
<span class="sd">- By default, local configurations are expected in folder ``/etc/searxng`` from</span>
<span class="sd"> where applications can load them with the :py:obj:`get_yaml_cfg` function.</span>
<span class="sd">- By default, customized :ref:`SearXNG appl &lt;searxng settings.yml&gt;` settings are</span>
<span class="sd"> expected in a file named ``settings.yml``.</span>
<span class="sd">&quot;&quot;&quot;</span>
<span class="kn">import</span><span class="w"> </span><span class="nn">typing</span><span class="w"> </span><span class="k">as</span><span class="w"> </span><span class="nn">t</span>
<span class="kn">import</span><span class="w"> </span><span class="nn">os.path</span>
<span class="kn">from</span><span class="w"> </span><span class="nn">collections.abc</span><span class="w"> </span><span class="kn">import</span> <span class="n">MutableMapping</span>
<span class="kn">from</span><span class="w"> </span><span class="nn">itertools</span><span class="w"> </span><span class="kn">import</span> <span class="n">filterfalse</span>
<span class="kn">from</span><span class="w"> </span><span class="nn">pathlib</span><span class="w"> </span><span class="kn">import</span> <span class="n">Path</span>
<span class="kn">import</span><span class="w"> </span><span class="nn">yaml</span>
<span class="kn">from</span><span class="w"> </span><span class="nn">searx.exceptions</span><span class="w"> </span><span class="kn">import</span> <span class="n">SearxSettingsException</span>
<span class="n">JSONType</span><span class="p">:</span> <span class="n">t</span><span class="o">.</span><span class="n">TypeAlias</span> <span class="o">=</span> <span class="nb">dict</span><span class="p">[</span><span class="nb">str</span><span class="p">,</span> <span class="s2">&quot;JSONType&quot;</span><span class="p">]</span> <span class="o">|</span> <span class="nb">list</span><span class="p">[</span><span class="s2">&quot;JSONType&quot;</span><span class="p">]</span> <span class="o">|</span> <span class="nb">str</span> <span class="o">|</span> <span class="nb">int</span> <span class="o">|</span> <span class="nb">float</span> <span class="o">|</span> <span class="nb">bool</span> <span class="o">|</span> <span class="kc">None</span>
<span class="n">SettingsType</span><span class="p">:</span> <span class="n">t</span><span class="o">.</span><span class="n">TypeAlias</span> <span class="o">=</span> <span class="nb">dict</span><span class="p">[</span><span class="nb">str</span><span class="p">,</span> <span class="n">JSONType</span><span class="p">]</span>
<span class="n">searx_dir</span> <span class="o">=</span> <span class="n">os</span><span class="o">.</span><span class="n">path</span><span class="o">.</span><span class="n">abspath</span><span class="p">(</span><span class="n">os</span><span class="o">.</span><span class="n">path</span><span class="o">.</span><span class="n">dirname</span><span class="p">(</span><span class="vm">__file__</span><span class="p">))</span>
<span class="n">SETTINGS_YAML</span> <span class="o">=</span> <span class="n">Path</span><span class="p">(</span><span class="s2">&quot;settings.yml&quot;</span><span class="p">)</span>
<span class="n">DEFAULT_SETTINGS_FILE</span> <span class="o">=</span> <span class="n">Path</span><span class="p">(</span><span class="n">searx_dir</span><span class="p">)</span> <span class="o">/</span> <span class="n">SETTINGS_YAML</span>
<span class="sd">&quot;&quot;&quot;The :origin:`searx/settings.yml` file with all the default settings.&quot;&quot;&quot;</span>
<div class="viewcode-block" id="load_yaml">
<a class="viewcode-back" href="../../src/searx.settings.html#searx.settings_loader.load_yaml">[docs]</a>
<span class="k">def</span><span class="w"> </span><span class="nf">load_yaml</span><span class="p">(</span><span class="n">file_name</span><span class="p">:</span> <span class="nb">str</span> <span class="o">|</span> <span class="n">Path</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="n">SettingsType</span><span class="p">:</span>
<span class="w"> </span><span class="sd">&quot;&quot;&quot;Load YAML config from a file.&quot;&quot;&quot;</span>
<span class="k">try</span><span class="p">:</span>
<span class="k">with</span> <span class="nb">open</span><span class="p">(</span><span class="n">file_name</span><span class="p">,</span> <span class="s1">&#39;r&#39;</span><span class="p">,</span> <span class="n">encoding</span><span class="o">=</span><span class="s1">&#39;utf-8&#39;</span><span class="p">)</span> <span class="k">as</span> <span class="n">settings_yaml</span><span class="p">:</span>
<span class="k">return</span> <span class="n">yaml</span><span class="o">.</span><span class="n">safe_load</span><span class="p">(</span><span class="n">settings_yaml</span><span class="p">)</span> <span class="ow">or</span> <span class="p">{}</span>
<span class="k">except</span> <span class="ne">IOError</span> <span class="k">as</span> <span class="n">e</span><span class="p">:</span>
<span class="k">raise</span> <span class="n">SearxSettingsException</span><span class="p">(</span><span class="n">e</span><span class="p">,</span> <span class="nb">str</span><span class="p">(</span><span class="n">file_name</span><span class="p">))</span> <span class="kn">from</span><span class="w"> </span><span class="nn">e</span>
<span class="k">except</span> <span class="n">yaml</span><span class="o">.</span><span class="n">YAMLError</span> <span class="k">as</span> <span class="n">e</span><span class="p">:</span>
<span class="k">raise</span> <span class="n">SearxSettingsException</span><span class="p">(</span><span class="n">e</span><span class="p">,</span> <span class="nb">str</span><span class="p">(</span><span class="n">file_name</span><span class="p">))</span> <span class="kn">from</span><span class="w"> </span><span class="nn">e</span></div>
<div class="viewcode-block" id="get_yaml_cfg">
<a class="viewcode-back" href="../../src/searx.settings.html#searx.settings_loader.get_yaml_cfg">[docs]</a>
<span class="k">def</span><span class="w"> </span><span class="nf">get_yaml_cfg</span><span class="p">(</span><span class="n">file_name</span><span class="p">:</span> <span class="nb">str</span> <span class="o">|</span> <span class="n">Path</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="n">SettingsType</span><span class="p">:</span>
<span class="w"> </span><span class="sd">&quot;&quot;&quot;Shortcut to load a YAML config from a file, located in the</span>
<span class="sd"> - :py:obj:`get_user_cfg_folder` or</span>
<span class="sd"> - in the ``searx`` folder of the SearXNG installation</span>
<span class="sd"> &quot;&quot;&quot;</span>
<span class="n">folder</span> <span class="o">=</span> <span class="n">get_user_cfg_folder</span><span class="p">()</span> <span class="ow">or</span> <span class="n">Path</span><span class="p">(</span><span class="n">searx_dir</span><span class="p">)</span>
<span class="n">fname</span> <span class="o">=</span> <span class="n">folder</span> <span class="o">/</span> <span class="n">file_name</span>
<span class="k">if</span> <span class="ow">not</span> <span class="n">fname</span><span class="o">.</span><span class="n">is_file</span><span class="p">():</span>
<span class="k">raise</span> <span class="ne">FileNotFoundError</span><span class="p">(</span><span class="sa">f</span><span class="s2">&quot;File </span><span class="si">{</span><span class="n">fname</span><span class="si">}</span><span class="s2"> does not exist!&quot;</span><span class="p">)</span>
<span class="k">return</span> <span class="n">load_yaml</span><span class="p">(</span><span class="n">fname</span><span class="p">)</span></div>
<div class="viewcode-block" id="get_user_cfg_folder">
<a class="viewcode-back" href="../../src/searx.settings.html#searx.settings_loader.get_user_cfg_folder">[docs]</a>
<span class="k">def</span><span class="w"> </span><span class="nf">get_user_cfg_folder</span><span class="p">()</span> <span class="o">-&gt;</span> <span class="n">Path</span> <span class="o">|</span> <span class="kc">None</span><span class="p">:</span>
<span class="w"> </span><span class="sd">&quot;&quot;&quot;Returns folder where the local configurations are located.</span>
<span class="sd"> 1. If the ``SEARXNG_SETTINGS_PATH`` environment is set and points to a</span>
<span class="sd"> folder (e.g. ``/etc/mysxng/``), all local configurations are expected in</span>
<span class="sd"> this folder. The settings of the :ref:`SearXNG appl &lt;searxng</span>
<span class="sd"> settings.yml&gt;` then expected in ``settings.yml``</span>
<span class="sd"> (e.g. ``/etc/mysxng/settings.yml``).</span>
<span class="sd"> 2. If the ``SEARXNG_SETTINGS_PATH`` environment is set and points to a file</span>
<span class="sd"> (e.g. ``/etc/mysxng/myinstance.yml``), this file contains the settings of</span>
<span class="sd"> the :ref:`SearXNG appl &lt;searxng settings.yml&gt;` and the folder</span>
<span class="sd"> (e.g. ``/etc/mysxng/``) is used for all other configurations.</span>
<span class="sd"> This type (``SEARXNG_SETTINGS_PATH`` points to a file) is suitable for</span>
<span class="sd"> use cases in which different profiles of the :ref:`SearXNG appl &lt;searxng</span>
<span class="sd"> settings.yml&gt;` are to be managed, such as in test scenarios.</span>
<span class="sd"> 3. If folder ``/etc/searxng`` exists, it is used.</span>
<span class="sd"> In case none of the above path exists, ``None`` is returned. In case of</span>
<span class="sd"> environment ``SEARXNG_SETTINGS_PATH`` is set, but the (folder or file) does</span>
<span class="sd"> not exists, a :py:obj:`EnvironmentError` is raised.</span>
<span class="sd"> &quot;&quot;&quot;</span>
<span class="n">folder</span> <span class="o">=</span> <span class="kc">None</span>
<span class="n">settings_path</span> <span class="o">=</span> <span class="n">os</span><span class="o">.</span><span class="n">environ</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s2">&quot;SEARXNG_SETTINGS_PATH&quot;</span><span class="p">)</span>
<span class="c1"># Disable default /etc/searxng is intended exclusively for internal testing purposes</span>
<span class="c1"># and is therefore not documented!</span>
<span class="n">disable_etc</span> <span class="o">=</span> <span class="n">os</span><span class="o">.</span><span class="n">environ</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s1">&#39;SEARXNG_DISABLE_ETC_SETTINGS&#39;</span><span class="p">,</span> <span class="s1">&#39;&#39;</span><span class="p">)</span><span class="o">.</span><span class="n">lower</span><span class="p">()</span> <span class="ow">in</span> <span class="p">(</span><span class="s1">&#39;1&#39;</span><span class="p">,</span> <span class="s1">&#39;true&#39;</span><span class="p">)</span>
<span class="k">if</span> <span class="n">settings_path</span><span class="p">:</span>
<span class="c1"># rule 1. and 2.</span>
<span class="n">settings_path</span> <span class="o">=</span> <span class="n">Path</span><span class="p">(</span><span class="n">settings_path</span><span class="p">)</span>
<span class="k">if</span> <span class="n">settings_path</span><span class="o">.</span><span class="n">is_dir</span><span class="p">():</span>
<span class="n">folder</span> <span class="o">=</span> <span class="n">settings_path</span>
<span class="k">elif</span> <span class="n">settings_path</span><span class="o">.</span><span class="n">is_file</span><span class="p">():</span>
<span class="n">folder</span> <span class="o">=</span> <span class="n">settings_path</span><span class="o">.</span><span class="n">parent</span>
<span class="k">else</span><span class="p">:</span>
<span class="k">raise</span> <span class="ne">EnvironmentError</span><span class="p">(</span><span class="mi">1</span><span class="p">,</span> <span class="sa">f</span><span class="s2">&quot;</span><span class="si">{</span><span class="n">settings_path</span><span class="si">}</span><span class="s2"> not exists!&quot;</span><span class="p">,</span> <span class="n">settings_path</span><span class="p">)</span>
<span class="k">if</span> <span class="ow">not</span> <span class="n">folder</span> <span class="ow">and</span> <span class="ow">not</span> <span class="n">disable_etc</span><span class="p">:</span>
<span class="c1"># default: rule 3.</span>
<span class="n">folder</span> <span class="o">=</span> <span class="n">Path</span><span class="p">(</span><span class="s2">&quot;/etc/searxng&quot;</span><span class="p">)</span>
<span class="k">if</span> <span class="ow">not</span> <span class="n">folder</span><span class="o">.</span><span class="n">is_dir</span><span class="p">():</span>
<span class="n">folder</span> <span class="o">=</span> <span class="kc">None</span>
<span class="k">return</span> <span class="n">folder</span></div>
<span class="k">def</span><span class="w"> </span><span class="nf">update_dict</span><span class="p">(</span><span class="n">default_dict</span><span class="p">:</span> <span class="n">MutableMapping</span><span class="p">[</span><span class="nb">str</span><span class="p">,</span> <span class="n">t</span><span class="o">.</span><span class="n">Any</span><span class="p">],</span> <span class="n">user_dict</span><span class="p">:</span> <span class="n">MutableMapping</span><span class="p">[</span><span class="nb">str</span><span class="p">,</span> <span class="n">t</span><span class="o">.</span><span class="n">Any</span><span class="p">]):</span>
<span class="k">for</span> <span class="n">k</span><span class="p">,</span> <span class="n">v</span> <span class="ow">in</span> <span class="n">user_dict</span><span class="o">.</span><span class="n">items</span><span class="p">():</span>
<span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">v</span><span class="p">,</span> <span class="n">MutableMapping</span><span class="p">):</span>
<span class="n">default_dict</span><span class="p">[</span><span class="n">k</span><span class="p">]</span> <span class="o">=</span> <span class="n">update_dict</span><span class="p">(</span><span class="n">default_dict</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">k</span><span class="p">,</span> <span class="p">{}),</span> <span class="n">v</span><span class="p">)</span> <span class="c1"># type: ignore</span>
<span class="k">else</span><span class="p">:</span>
<span class="n">default_dict</span><span class="p">[</span><span class="n">k</span><span class="p">]</span> <span class="o">=</span> <span class="n">v</span>
<span class="k">return</span> <span class="n">default_dict</span>
<span class="k">def</span><span class="w"> </span><span class="nf">update_settings</span><span class="p">(</span><span class="n">default_settings</span><span class="p">:</span> <span class="n">MutableMapping</span><span class="p">[</span><span class="nb">str</span><span class="p">,</span> <span class="n">t</span><span class="o">.</span><span class="n">Any</span><span class="p">],</span> <span class="n">user_settings</span><span class="p">:</span> <span class="n">MutableMapping</span><span class="p">[</span><span class="nb">str</span><span class="p">,</span> <span class="n">t</span><span class="o">.</span><span class="n">Any</span><span class="p">]):</span>
<span class="c1"># pylint: disable=too-many-branches</span>
<span class="c1"># merge everything except the engines</span>
<span class="k">for</span> <span class="n">k</span><span class="p">,</span> <span class="n">v</span> <span class="ow">in</span> <span class="n">user_settings</span><span class="o">.</span><span class="n">items</span><span class="p">():</span>
<span class="k">if</span> <span class="n">k</span> <span class="ow">not</span> <span class="ow">in</span> <span class="p">(</span><span class="s1">&#39;use_default_settings&#39;</span><span class="p">,</span> <span class="s1">&#39;engines&#39;</span><span class="p">):</span>
<span class="k">if</span> <span class="n">k</span> <span class="ow">in</span> <span class="n">default_settings</span> <span class="ow">and</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">v</span><span class="p">,</span> <span class="n">MutableMapping</span><span class="p">):</span>
<span class="n">update_dict</span><span class="p">(</span><span class="n">default_settings</span><span class="p">[</span><span class="n">k</span><span class="p">],</span> <span class="n">v</span><span class="p">)</span> <span class="c1"># type: ignore</span>
<span class="k">else</span><span class="p">:</span>
<span class="n">default_settings</span><span class="p">[</span><span class="n">k</span><span class="p">]</span> <span class="o">=</span> <span class="n">v</span>
<span class="n">categories_as_tabs</span> <span class="o">=</span> <span class="n">user_settings</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s1">&#39;categories_as_tabs&#39;</span><span class="p">)</span>
<span class="k">if</span> <span class="n">categories_as_tabs</span><span class="p">:</span>
<span class="n">default_settings</span><span class="p">[</span><span class="s1">&#39;categories_as_tabs&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="n">categories_as_tabs</span>
<span class="n">plugins</span> <span class="o">=</span> <span class="n">user_settings</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s1">&#39;plugins&#39;</span><span class="p">)</span>
<span class="k">if</span> <span class="n">plugins</span> <span class="ow">is</span> <span class="ow">not</span> <span class="kc">None</span><span class="p">:</span>
<span class="n">default_settings</span><span class="p">[</span><span class="s1">&#39;plugins&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="n">plugins</span>
<span class="c1"># parse the engines</span>
<span class="n">remove_engines</span><span class="p">:</span> <span class="kc">None</span> <span class="o">|</span> <span class="nb">list</span><span class="p">[</span><span class="nb">str</span><span class="p">]</span> <span class="o">=</span> <span class="kc">None</span>
<span class="n">keep_only_engines</span><span class="p">:</span> <span class="nb">list</span><span class="p">[</span><span class="nb">str</span><span class="p">]</span> <span class="o">|</span> <span class="kc">None</span> <span class="o">=</span> <span class="kc">None</span>
<span class="n">use_default_settings</span><span class="p">:</span> <span class="nb">dict</span><span class="p">[</span><span class="nb">str</span><span class="p">,</span> <span class="n">t</span><span class="o">.</span><span class="n">Any</span><span class="p">]</span> <span class="o">|</span> <span class="kc">None</span> <span class="o">=</span> <span class="n">user_settings</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s1">&#39;use_default_settings&#39;</span><span class="p">)</span>
<span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">use_default_settings</span><span class="p">,</span> <span class="nb">dict</span><span class="p">):</span>
<span class="n">remove_engines</span> <span class="o">=</span> <span class="n">use_default_settings</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s1">&#39;engines&#39;</span><span class="p">,</span> <span class="p">{})</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s1">&#39;remove&#39;</span><span class="p">)</span>
<span class="n">keep_only_engines</span> <span class="o">=</span> <span class="n">use_default_settings</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s1">&#39;engines&#39;</span><span class="p">,</span> <span class="p">{})</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s1">&#39;keep_only&#39;</span><span class="p">)</span>
<span class="k">if</span> <span class="s1">&#39;engines&#39;</span> <span class="ow">in</span> <span class="n">user_settings</span> <span class="ow">or</span> <span class="n">remove_engines</span> <span class="ow">is</span> <span class="ow">not</span> <span class="kc">None</span> <span class="ow">or</span> <span class="n">keep_only_engines</span> <span class="ow">is</span> <span class="ow">not</span> <span class="kc">None</span><span class="p">:</span>
<span class="n">engines</span><span class="p">:</span> <span class="nb">list</span><span class="p">[</span><span class="nb">dict</span><span class="p">[</span><span class="nb">str</span><span class="p">,</span> <span class="n">t</span><span class="o">.</span><span class="n">Any</span><span class="p">]]</span> <span class="o">=</span> <span class="n">default_settings</span><span class="p">[</span><span class="s1">&#39;engines&#39;</span><span class="p">]</span>
<span class="c1"># parse &quot;use_default_settings.engines.remove&quot;</span>
<span class="k">if</span> <span class="n">remove_engines</span> <span class="ow">is</span> <span class="ow">not</span> <span class="kc">None</span><span class="p">:</span>
<span class="n">engines</span> <span class="o">=</span> <span class="nb">list</span><span class="p">(</span><span class="n">filterfalse</span><span class="p">(</span><span class="k">lambda</span> <span class="n">engine</span><span class="p">:</span> <span class="p">(</span><span class="n">engine</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s1">&#39;name&#39;</span><span class="p">))</span> <span class="ow">in</span> <span class="n">remove_engines</span><span class="p">,</span> <span class="n">engines</span><span class="p">))</span>
<span class="c1"># parse &quot;use_default_settings.engines.keep_only&quot;</span>
<span class="k">if</span> <span class="n">keep_only_engines</span> <span class="ow">is</span> <span class="ow">not</span> <span class="kc">None</span><span class="p">:</span>
<span class="n">engines</span> <span class="o">=</span> <span class="nb">list</span><span class="p">(</span><span class="nb">filter</span><span class="p">(</span><span class="k">lambda</span> <span class="n">engine</span><span class="p">:</span> <span class="p">(</span><span class="n">engine</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s1">&#39;name&#39;</span><span class="p">))</span> <span class="ow">in</span> <span class="n">keep_only_engines</span><span class="p">,</span> <span class="n">engines</span><span class="p">))</span>
<span class="c1"># parse &quot;engines&quot;</span>
<span class="n">user_engines</span> <span class="o">=</span> <span class="n">user_settings</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s1">&#39;engines&#39;</span><span class="p">)</span>
<span class="k">if</span> <span class="n">user_engines</span><span class="p">:</span>
<span class="n">engines_dict</span> <span class="o">=</span> <span class="nb">dict</span><span class="p">((</span><span class="n">definition</span><span class="p">[</span><span class="s1">&#39;name&#39;</span><span class="p">],</span> <span class="n">definition</span><span class="p">)</span> <span class="k">for</span> <span class="n">definition</span> <span class="ow">in</span> <span class="n">engines</span><span class="p">)</span>
<span class="k">for</span> <span class="n">user_engine</span> <span class="ow">in</span> <span class="n">user_engines</span><span class="p">:</span>
<span class="n">default_engine</span><span class="p">:</span> <span class="nb">dict</span><span class="p">[</span><span class="nb">str</span><span class="p">,</span> <span class="n">t</span><span class="o">.</span><span class="n">Any</span><span class="p">]</span> <span class="o">|</span> <span class="kc">None</span> <span class="o">=</span> <span class="n">engines_dict</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">user_engine</span><span class="p">[</span><span class="s1">&#39;name&#39;</span><span class="p">])</span>
<span class="k">if</span> <span class="n">default_engine</span><span class="p">:</span>
<span class="n">update_dict</span><span class="p">(</span><span class="n">default_engine</span><span class="p">,</span> <span class="n">user_engine</span><span class="p">)</span>
<span class="k">else</span><span class="p">:</span>
<span class="n">engines</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">user_engine</span><span class="p">)</span>
<span class="c1"># store the result</span>
<span class="n">default_settings</span><span class="p">[</span><span class="s1">&#39;engines&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="n">engines</span>
<span class="k">return</span> <span class="n">default_settings</span>
<span class="k">def</span><span class="w"> </span><span class="nf">is_use_default_settings</span><span class="p">(</span><span class="n">user_settings</span><span class="p">:</span> <span class="n">SettingsType</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="nb">bool</span><span class="p">:</span>
<span class="n">use_default_settings</span><span class="p">:</span> <span class="nb">bool</span> <span class="o">|</span> <span class="n">JSONType</span> <span class="o">=</span> <span class="n">user_settings</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s1">&#39;use_default_settings&#39;</span><span class="p">)</span>
<span class="k">if</span> <span class="n">use_default_settings</span> <span class="ow">is</span> <span class="kc">True</span><span class="p">:</span>
<span class="k">return</span> <span class="kc">True</span>
<span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">use_default_settings</span><span class="p">,</span> <span class="nb">dict</span><span class="p">):</span>
<span class="k">return</span> <span class="kc">True</span>
<span class="k">if</span> <span class="n">use_default_settings</span> <span class="ow">is</span> <span class="kc">False</span> <span class="ow">or</span> <span class="n">use_default_settings</span> <span class="ow">is</span> <span class="kc">None</span><span class="p">:</span>
<span class="k">return</span> <span class="kc">False</span>
<span class="k">raise</span> <span class="ne">ValueError</span><span class="p">(</span><span class="s1">&#39;Invalid value for use_default_settings&#39;</span><span class="p">)</span>
<div class="viewcode-block" id="load_settings">
<a class="viewcode-back" href="../../src/searx.settings.html#searx.settings_loader.load_settings">[docs]</a>
<span class="k">def</span><span class="w"> </span><span class="nf">load_settings</span><span class="p">(</span><span class="n">load_user_settings</span><span class="p">:</span> <span class="nb">bool</span> <span class="o">=</span> <span class="kc">True</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="nb">tuple</span><span class="p">[</span><span class="n">SettingsType</span><span class="p">,</span> <span class="nb">str</span><span class="p">]:</span>
<span class="w"> </span><span class="sd">&quot;&quot;&quot;Function for loading the settings of the SearXNG application</span>
<span class="sd"> (:ref:`settings.yml &lt;searxng settings.yml&gt;`).&quot;&quot;&quot;</span>
<span class="n">msg</span> <span class="o">=</span> <span class="sa">f</span><span class="s2">&quot;load the default settings from </span><span class="si">{</span><span class="n">DEFAULT_SETTINGS_FILE</span><span class="si">}</span><span class="s2">&quot;</span>
<span class="n">cfg</span> <span class="o">=</span> <span class="n">load_yaml</span><span class="p">(</span><span class="n">DEFAULT_SETTINGS_FILE</span><span class="p">)</span>
<span class="n">cfg_folder</span> <span class="o">=</span> <span class="n">get_user_cfg_folder</span><span class="p">()</span>
<span class="k">if</span> <span class="ow">not</span> <span class="n">load_user_settings</span> <span class="ow">or</span> <span class="ow">not</span> <span class="n">cfg_folder</span><span class="p">:</span>
<span class="k">return</span> <span class="n">cfg</span><span class="p">,</span> <span class="n">msg</span>
<span class="n">settings_yml</span> <span class="o">=</span> <span class="n">os</span><span class="o">.</span><span class="n">environ</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s2">&quot;SEARXNG_SETTINGS_PATH&quot;</span><span class="p">)</span>
<span class="k">if</span> <span class="n">settings_yml</span> <span class="ow">and</span> <span class="n">Path</span><span class="p">(</span><span class="n">settings_yml</span><span class="p">)</span><span class="o">.</span><span class="n">is_file</span><span class="p">():</span>
<span class="c1"># see get_user_cfg_folder() --&gt; SEARXNG_SETTINGS_PATH points to a file</span>
<span class="n">settings_yml</span> <span class="o">=</span> <span class="n">Path</span><span class="p">(</span><span class="n">settings_yml</span><span class="p">)</span><span class="o">.</span><span class="n">name</span>
<span class="k">else</span><span class="p">:</span>
<span class="c1"># see get_user_cfg_folder() --&gt; SEARXNG_SETTINGS_PATH points to a folder</span>
<span class="n">settings_yml</span> <span class="o">=</span> <span class="n">SETTINGS_YAML</span>
<span class="n">cfg_file</span> <span class="o">=</span> <span class="n">cfg_folder</span> <span class="o">/</span> <span class="n">settings_yml</span>
<span class="k">if</span> <span class="ow">not</span> <span class="n">cfg_file</span><span class="o">.</span><span class="n">exists</span><span class="p">():</span>
<span class="k">return</span> <span class="n">cfg</span><span class="p">,</span> <span class="n">msg</span>
<span class="n">msg</span> <span class="o">=</span> <span class="sa">f</span><span class="s2">&quot;load the user settings from </span><span class="si">{</span><span class="n">cfg_file</span><span class="si">}</span><span class="s2">&quot;</span>
<span class="n">user_cfg</span> <span class="o">=</span> <span class="n">load_yaml</span><span class="p">(</span><span class="n">cfg_file</span><span class="p">)</span>
<span class="k">if</span> <span class="n">is_use_default_settings</span><span class="p">(</span><span class="n">user_cfg</span><span class="p">):</span>
<span class="c1"># the user settings are merged with the default configuration</span>
<span class="n">msg</span> <span class="o">=</span> <span class="sa">f</span><span class="s2">&quot;merge the default settings ( </span><span class="si">{</span><span class="n">DEFAULT_SETTINGS_FILE</span><span class="si">}</span><span class="s2"> ) and the user settings ( </span><span class="si">{</span><span class="n">cfg_file</span><span class="si">}</span><span class="s2"> )&quot;</span>
<span class="n">update_settings</span><span class="p">(</span><span class="n">cfg</span><span class="p">,</span> <span class="n">user_cfg</span><span class="p">)</span>
<span class="k">else</span><span class="p">:</span>
<span class="n">cfg</span> <span class="o">=</span> <span class="n">user_cfg</span>
<span class="k">return</span> <span class="n">cfg</span><span class="p">,</span> <span class="n">msg</span></div>
</pre></div>
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