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[doc] build from commit 66f6495a2253e1c5ec9abae35640ce2a951250e2
2024-11-25 16:02:55 +00:00
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<h1>Source code for searx.search.processors.abstract</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;Abstract base classes for engine request processors.</span>
<span class="sd">&quot;&quot;&quot;</span>
<span class="kn">import</span> <span class="nn">threading</span>
<span class="kn">from</span> <span class="nn">abc</span> <span class="kn">import</span> <span class="n">abstractmethod</span><span class="p">,</span> <span class="n">ABC</span>
<span class="kn">from</span> <span class="nn">timeit</span> <span class="kn">import</span> <span class="n">default_timer</span>
<span class="kn">from</span> <span class="nn">typing</span> <span class="kn">import</span> <span class="n">Dict</span><span class="p">,</span> <span class="n">Union</span>
<span class="kn">from</span> <span class="nn">searx</span> <span class="kn">import</span> <span class="n">settings</span><span class="p">,</span> <span class="n">logger</span>
<span class="kn">from</span> <span class="nn">searx.engines</span> <span class="kn">import</span> <span class="n">engines</span>
<span class="kn">from</span> <span class="nn">searx.network</span> <span class="kn">import</span> <span class="n">get_time_for_thread</span><span class="p">,</span> <span class="n">get_network</span>
<span class="kn">from</span> <span class="nn">searx.metrics</span> <span class="kn">import</span> <span class="n">histogram_observe</span><span class="p">,</span> <span class="n">counter_inc</span><span class="p">,</span> <span class="n">count_exception</span><span class="p">,</span> <span class="n">count_error</span>
<span class="kn">from</span> <span class="nn">searx.exceptions</span> <span class="kn">import</span> <span class="n">SearxEngineAccessDeniedException</span><span class="p">,</span> <span class="n">SearxEngineResponseException</span>
<span class="kn">from</span> <span class="nn">searx.utils</span> <span class="kn">import</span> <span class="n">get_engine_from_settings</span>
<span class="n">logger</span> <span class="o">=</span> <span class="n">logger</span><span class="o">.</span><span class="n">getChild</span><span class="p">(</span><span class="s1">&#39;searx.search.processor&#39;</span><span class="p">)</span>
<span class="n">SUSPENDED_STATUS</span><span class="p">:</span> <span class="n">Dict</span><span class="p">[</span><span class="n">Union</span><span class="p">[</span><span class="nb">int</span><span class="p">,</span> <span class="nb">str</span><span class="p">],</span> <span class="s1">&#39;SuspendedStatus&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="p">{}</span>
<div class="viewcode-block" id="SuspendedStatus">
<a class="viewcode-back" href="../../../../src/searx.search.processors.html#searx.search.processors.abstract.SuspendedStatus">[docs]</a>
<span class="k">class</span> <span class="nc">SuspendedStatus</span><span class="p">:</span>
<span class="w"> </span><span class="sd">&quot;&quot;&quot;Class to handle suspend state.&quot;&quot;&quot;</span>
<span class="vm">__slots__</span> <span class="o">=</span> <span class="s1">&#39;suspend_end_time&#39;</span><span class="p">,</span> <span class="s1">&#39;suspend_reason&#39;</span><span class="p">,</span> <span class="s1">&#39;continuous_errors&#39;</span><span class="p">,</span> <span class="s1">&#39;lock&#39;</span>
<span class="k">def</span> <span class="fm">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="bp">self</span><span class="o">.</span><span class="n">lock</span> <span class="o">=</span> <span class="n">threading</span><span class="o">.</span><span class="n">Lock</span><span class="p">()</span>
<span class="bp">self</span><span class="o">.</span><span class="n">continuous_errors</span> <span class="o">=</span> <span class="mi">0</span>
<span class="bp">self</span><span class="o">.</span><span class="n">suspend_end_time</span> <span class="o">=</span> <span class="mi">0</span>
<span class="bp">self</span><span class="o">.</span><span class="n">suspend_reason</span> <span class="o">=</span> <span class="kc">None</span>
<span class="nd">@property</span>
<span class="k">def</span> <span class="nf">is_suspended</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">suspend_end_time</span> <span class="o">&gt;=</span> <span class="n">default_timer</span><span class="p">()</span>
<span class="k">def</span> <span class="nf">suspend</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">suspended_time</span><span class="p">,</span> <span class="n">suspend_reason</span><span class="p">):</span>
<span class="k">with</span> <span class="bp">self</span><span class="o">.</span><span class="n">lock</span><span class="p">:</span>
<span class="c1"># update continuous_errors / suspend_end_time</span>
<span class="bp">self</span><span class="o">.</span><span class="n">continuous_errors</span> <span class="o">+=</span> <span class="mi">1</span>
<span class="k">if</span> <span class="n">suspended_time</span> <span class="ow">is</span> <span class="kc">None</span><span class="p">:</span>
<span class="n">suspended_time</span> <span class="o">=</span> <span class="nb">min</span><span class="p">(</span>
<span class="n">settings</span><span class="p">[</span><span class="s1">&#39;search&#39;</span><span class="p">][</span><span class="s1">&#39;max_ban_time_on_fail&#39;</span><span class="p">],</span>
<span class="bp">self</span><span class="o">.</span><span class="n">continuous_errors</span> <span class="o">*</span> <span class="n">settings</span><span class="p">[</span><span class="s1">&#39;search&#39;</span><span class="p">][</span><span class="s1">&#39;ban_time_on_fail&#39;</span><span class="p">],</span>
<span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">suspend_end_time</span> <span class="o">=</span> <span class="n">default_timer</span><span class="p">()</span> <span class="o">+</span> <span class="n">suspended_time</span>
<span class="bp">self</span><span class="o">.</span><span class="n">suspend_reason</span> <span class="o">=</span> <span class="n">suspend_reason</span>
<span class="n">logger</span><span class="o">.</span><span class="n">debug</span><span class="p">(</span><span class="s1">&#39;Suspend for </span><span class="si">%i</span><span class="s1"> seconds&#39;</span><span class="p">,</span> <span class="n">suspended_time</span><span class="p">)</span>
<span class="k">def</span> <span class="nf">resume</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="k">with</span> <span class="bp">self</span><span class="o">.</span><span class="n">lock</span><span class="p">:</span>
<span class="c1"># reset the suspend variables</span>
<span class="bp">self</span><span class="o">.</span><span class="n">continuous_errors</span> <span class="o">=</span> <span class="mi">0</span>
<span class="bp">self</span><span class="o">.</span><span class="n">suspend_end_time</span> <span class="o">=</span> <span class="mi">0</span>
<span class="bp">self</span><span class="o">.</span><span class="n">suspend_reason</span> <span class="o">=</span> <span class="kc">None</span></div>
<div class="viewcode-block" id="EngineProcessor">
<a class="viewcode-back" href="../../../../src/searx.search.processors.html#searx.search.processors.abstract.EngineProcessor">[docs]</a>
<span class="k">class</span> <span class="nc">EngineProcessor</span><span class="p">(</span><span class="n">ABC</span><span class="p">):</span>
<span class="w"> </span><span class="sd">&quot;&quot;&quot;Base classes used for all types of request processors.&quot;&quot;&quot;</span>
<span class="vm">__slots__</span> <span class="o">=</span> <span class="s1">&#39;engine&#39;</span><span class="p">,</span> <span class="s1">&#39;engine_name&#39;</span><span class="p">,</span> <span class="s1">&#39;lock&#39;</span><span class="p">,</span> <span class="s1">&#39;suspended_status&#39;</span><span class="p">,</span> <span class="s1">&#39;logger&#39;</span>
<span class="k">def</span> <span class="fm">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">engine</span><span class="p">,</span> <span class="n">engine_name</span><span class="p">:</span> <span class="nb">str</span><span class="p">):</span>
<span class="bp">self</span><span class="o">.</span><span class="n">engine</span> <span class="o">=</span> <span class="n">engine</span>
<span class="bp">self</span><span class="o">.</span><span class="n">engine_name</span> <span class="o">=</span> <span class="n">engine_name</span>
<span class="bp">self</span><span class="o">.</span><span class="n">logger</span> <span class="o">=</span> <span class="n">engines</span><span class="p">[</span><span class="n">engine_name</span><span class="p">]</span><span class="o">.</span><span class="n">logger</span>
<span class="n">key</span> <span class="o">=</span> <span class="n">get_network</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">engine_name</span><span class="p">)</span>
<span class="n">key</span> <span class="o">=</span> <span class="nb">id</span><span class="p">(</span><span class="n">key</span><span class="p">)</span> <span class="k">if</span> <span class="n">key</span> <span class="k">else</span> <span class="bp">self</span><span class="o">.</span><span class="n">engine_name</span>
<span class="bp">self</span><span class="o">.</span><span class="n">suspended_status</span> <span class="o">=</span> <span class="n">SUSPENDED_STATUS</span><span class="o">.</span><span class="n">setdefault</span><span class="p">(</span><span class="n">key</span><span class="p">,</span> <span class="n">SuspendedStatus</span><span class="p">())</span>
<span class="k">def</span> <span class="nf">initialize</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="k">try</span><span class="p">:</span>
<span class="bp">self</span><span class="o">.</span><span class="n">engine</span><span class="o">.</span><span class="n">init</span><span class="p">(</span><span class="n">get_engine_from_settings</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">engine_name</span><span class="p">))</span>
<span class="k">except</span> <span class="n">SearxEngineResponseException</span> <span class="k">as</span> <span class="n">exc</span><span class="p">:</span>
<span class="bp">self</span><span class="o">.</span><span class="n">logger</span><span class="o">.</span><span class="n">warning</span><span class="p">(</span><span class="s1">&#39;Fail to initialize // </span><span class="si">%s</span><span class="s1">&#39;</span><span class="p">,</span> <span class="n">exc</span><span class="p">)</span>
<span class="k">except</span> <span class="ne">Exception</span><span class="p">:</span> <span class="c1"># pylint: disable=broad-except</span>
<span class="bp">self</span><span class="o">.</span><span class="n">logger</span><span class="o">.</span><span class="n">exception</span><span class="p">(</span><span class="s1">&#39;Fail to initialize&#39;</span><span class="p">)</span>
<span class="k">else</span><span class="p">:</span>
<span class="bp">self</span><span class="o">.</span><span class="n">logger</span><span class="o">.</span><span class="n">debug</span><span class="p">(</span><span class="s1">&#39;Initialized&#39;</span><span class="p">)</span>
<span class="nd">@property</span>
<span class="k">def</span> <span class="nf">has_initialize_function</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="k">return</span> <span class="nb">hasattr</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">engine</span><span class="p">,</span> <span class="s1">&#39;init&#39;</span><span class="p">)</span>
<span class="k">def</span> <span class="nf">handle_exception</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">result_container</span><span class="p">,</span> <span class="n">exception_or_message</span><span class="p">,</span> <span class="n">suspend</span><span class="o">=</span><span class="kc">False</span><span class="p">):</span>
<span class="c1"># update result_container</span>
<span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">exception_or_message</span><span class="p">,</span> <span class="ne">BaseException</span><span class="p">):</span>
<span class="n">exception_class</span> <span class="o">=</span> <span class="n">exception_or_message</span><span class="o">.</span><span class="vm">__class__</span>
<span class="n">module_name</span> <span class="o">=</span> <span class="nb">getattr</span><span class="p">(</span><span class="n">exception_class</span><span class="p">,</span> <span class="s1">&#39;__module__&#39;</span><span class="p">,</span> <span class="s1">&#39;builtins&#39;</span><span class="p">)</span>
<span class="n">module_name</span> <span class="o">=</span> <span class="s1">&#39;&#39;</span> <span class="k">if</span> <span class="n">module_name</span> <span class="o">==</span> <span class="s1">&#39;builtins&#39;</span> <span class="k">else</span> <span class="n">module_name</span> <span class="o">+</span> <span class="s1">&#39;.&#39;</span>
<span class="n">error_message</span> <span class="o">=</span> <span class="n">module_name</span> <span class="o">+</span> <span class="n">exception_class</span><span class="o">.</span><span class="vm">__qualname__</span>
<span class="k">else</span><span class="p">:</span>
<span class="n">error_message</span> <span class="o">=</span> <span class="n">exception_or_message</span>
<span class="n">result_container</span><span class="o">.</span><span class="n">add_unresponsive_engine</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">engine_name</span><span class="p">,</span> <span class="n">error_message</span><span class="p">)</span>
<span class="c1"># metrics</span>
<span class="n">counter_inc</span><span class="p">(</span><span class="s1">&#39;engine&#39;</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">engine_name</span><span class="p">,</span> <span class="s1">&#39;search&#39;</span><span class="p">,</span> <span class="s1">&#39;count&#39;</span><span class="p">,</span> <span class="s1">&#39;error&#39;</span><span class="p">)</span>
<span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">exception_or_message</span><span class="p">,</span> <span class="ne">BaseException</span><span class="p">):</span>
<span class="n">count_exception</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">engine_name</span><span class="p">,</span> <span class="n">exception_or_message</span><span class="p">)</span>
<span class="k">else</span><span class="p">:</span>
<span class="n">count_error</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">engine_name</span><span class="p">,</span> <span class="n">exception_or_message</span><span class="p">)</span>
<span class="c1"># suspend the engine ?</span>
<span class="k">if</span> <span class="n">suspend</span><span class="p">:</span>
<span class="n">suspended_time</span> <span class="o">=</span> <span class="kc">None</span>
<span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">exception_or_message</span><span class="p">,</span> <span class="n">SearxEngineAccessDeniedException</span><span class="p">):</span>
<span class="n">suspended_time</span> <span class="o">=</span> <span class="n">exception_or_message</span><span class="o">.</span><span class="n">suspended_time</span>
<span class="bp">self</span><span class="o">.</span><span class="n">suspended_status</span><span class="o">.</span><span class="n">suspend</span><span class="p">(</span><span class="n">suspended_time</span><span class="p">,</span> <span class="n">error_message</span><span class="p">)</span> <span class="c1"># pylint: disable=no-member</span>
<span class="k">def</span> <span class="nf">_extend_container_basic</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">result_container</span><span class="p">,</span> <span class="n">start_time</span><span class="p">,</span> <span class="n">search_results</span><span class="p">):</span>
<span class="c1"># update result_container</span>
<span class="n">result_container</span><span class="o">.</span><span class="n">extend</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">engine_name</span><span class="p">,</span> <span class="n">search_results</span><span class="p">)</span>
<span class="n">engine_time</span> <span class="o">=</span> <span class="n">default_timer</span><span class="p">()</span> <span class="o">-</span> <span class="n">start_time</span>
<span class="n">page_load_time</span> <span class="o">=</span> <span class="n">get_time_for_thread</span><span class="p">()</span>
<span class="n">result_container</span><span class="o">.</span><span class="n">add_timing</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">engine_name</span><span class="p">,</span> <span class="n">engine_time</span><span class="p">,</span> <span class="n">page_load_time</span><span class="p">)</span>
<span class="c1"># metrics</span>
<span class="n">counter_inc</span><span class="p">(</span><span class="s1">&#39;engine&#39;</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">engine_name</span><span class="p">,</span> <span class="s1">&#39;search&#39;</span><span class="p">,</span> <span class="s1">&#39;count&#39;</span><span class="p">,</span> <span class="s1">&#39;successful&#39;</span><span class="p">)</span>
<span class="n">histogram_observe</span><span class="p">(</span><span class="n">engine_time</span><span class="p">,</span> <span class="s1">&#39;engine&#39;</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">engine_name</span><span class="p">,</span> <span class="s1">&#39;time&#39;</span><span class="p">,</span> <span class="s1">&#39;total&#39;</span><span class="p">)</span>
<span class="k">if</span> <span class="n">page_load_time</span> <span class="ow">is</span> <span class="ow">not</span> <span class="kc">None</span><span class="p">:</span>
<span class="n">histogram_observe</span><span class="p">(</span><span class="n">page_load_time</span><span class="p">,</span> <span class="s1">&#39;engine&#39;</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">engine_name</span><span class="p">,</span> <span class="s1">&#39;time&#39;</span><span class="p">,</span> <span class="s1">&#39;http&#39;</span><span class="p">)</span>
<span class="k">def</span> <span class="nf">extend_container</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">result_container</span><span class="p">,</span> <span class="n">start_time</span><span class="p">,</span> <span class="n">search_results</span><span class="p">):</span>
<span class="k">if</span> <span class="nb">getattr</span><span class="p">(</span><span class="n">threading</span><span class="o">.</span><span class="n">current_thread</span><span class="p">(),</span> <span class="s1">&#39;_timeout&#39;</span><span class="p">,</span> <span class="kc">False</span><span class="p">):</span>
<span class="c1"># the main thread is not waiting anymore</span>
<span class="bp">self</span><span class="o">.</span><span class="n">handle_exception</span><span class="p">(</span><span class="n">result_container</span><span class="p">,</span> <span class="s1">&#39;timeout&#39;</span><span class="p">,</span> <span class="kc">None</span><span class="p">)</span>
<span class="k">else</span><span class="p">:</span>
<span class="c1"># check if the engine accepted the request</span>
<span class="k">if</span> <span class="n">search_results</span> <span class="ow">is</span> <span class="ow">not</span> <span class="kc">None</span><span class="p">:</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_extend_container_basic</span><span class="p">(</span><span class="n">result_container</span><span class="p">,</span> <span class="n">start_time</span><span class="p">,</span> <span class="n">search_results</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">suspended_status</span><span class="o">.</span><span class="n">resume</span><span class="p">()</span>
<span class="k">def</span> <span class="nf">extend_container_if_suspended</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">result_container</span><span class="p">):</span>
<span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">suspended_status</span><span class="o">.</span><span class="n">is_suspended</span><span class="p">:</span>
<span class="n">result_container</span><span class="o">.</span><span class="n">add_unresponsive_engine</span><span class="p">(</span>
<span class="bp">self</span><span class="o">.</span><span class="n">engine_name</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">suspended_status</span><span class="o">.</span><span class="n">suspend_reason</span><span class="p">,</span> <span class="n">suspended</span><span class="o">=</span><span class="kc">True</span>
<span class="p">)</span>
<span class="k">return</span> <span class="kc">True</span>
<span class="k">return</span> <span class="kc">False</span>
<div class="viewcode-block" id="EngineProcessor.get_params">
<a class="viewcode-back" href="../../../../src/searx.search.processors.html#searx.search.processors.abstract.EngineProcessor.get_params">[docs]</a>
<span class="k">def</span> <span class="nf">get_params</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">search_query</span><span class="p">,</span> <span class="n">engine_category</span><span class="p">):</span>
<span class="w"> </span><span class="sd">&quot;&quot;&quot;Returns a set of (see :ref:`request params &lt;engine request arguments&gt;`) or</span>
<span class="sd"> ``None`` if request is not supported.</span>
<span class="sd"> Not supported conditions (``None`` is returned):</span>
<span class="sd"> - A page-number &gt; 1 when engine does not support paging.</span>
<span class="sd"> - A time range when the engine does not support time range.</span>
<span class="sd"> &quot;&quot;&quot;</span>
<span class="c1"># if paging is not supported, skip</span>
<span class="k">if</span> <span class="n">search_query</span><span class="o">.</span><span class="n">pageno</span> <span class="o">&gt;</span> <span class="mi">1</span> <span class="ow">and</span> <span class="ow">not</span> <span class="bp">self</span><span class="o">.</span><span class="n">engine</span><span class="o">.</span><span class="n">paging</span><span class="p">:</span>
<span class="k">return</span> <span class="kc">None</span>
<span class="c1"># if max page is reached, skip</span>
<span class="n">max_page</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">engine</span><span class="o">.</span><span class="n">max_page</span> <span class="ow">or</span> <span class="n">settings</span><span class="p">[</span><span class="s1">&#39;search&#39;</span><span class="p">][</span><span class="s1">&#39;max_page&#39;</span><span class="p">]</span>
<span class="k">if</span> <span class="n">max_page</span> <span class="ow">and</span> <span class="n">max_page</span> <span class="o">&lt;</span> <span class="n">search_query</span><span class="o">.</span><span class="n">pageno</span><span class="p">:</span>
<span class="k">return</span> <span class="kc">None</span>
<span class="c1"># if time_range is not supported, skip</span>
<span class="k">if</span> <span class="n">search_query</span><span class="o">.</span><span class="n">time_range</span> <span class="ow">and</span> <span class="ow">not</span> <span class="bp">self</span><span class="o">.</span><span class="n">engine</span><span class="o">.</span><span class="n">time_range_support</span><span class="p">:</span>
<span class="k">return</span> <span class="kc">None</span>
<span class="n">params</span> <span class="o">=</span> <span class="p">{}</span>
<span class="n">params</span><span class="p">[</span><span class="s1">&#39;category&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="n">engine_category</span>
<span class="n">params</span><span class="p">[</span><span class="s1">&#39;pageno&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="n">search_query</span><span class="o">.</span><span class="n">pageno</span>
<span class="n">params</span><span class="p">[</span><span class="s1">&#39;safesearch&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="n">search_query</span><span class="o">.</span><span class="n">safesearch</span>
<span class="n">params</span><span class="p">[</span><span class="s1">&#39;time_range&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="n">search_query</span><span class="o">.</span><span class="n">time_range</span>
<span class="n">params</span><span class="p">[</span><span class="s1">&#39;engine_data&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="n">search_query</span><span class="o">.</span><span class="n">engine_data</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">engine_name</span><span class="p">,</span> <span class="p">{})</span>
<span class="n">params</span><span class="p">[</span><span class="s1">&#39;searxng_locale&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="n">search_query</span><span class="o">.</span><span class="n">lang</span>
<span class="c1"># deprecated / vintage --&gt; use params[&#39;searxng_locale&#39;]</span>
<span class="c1">#</span>
<span class="c1"># Conditions related to engine&#39;s traits are implemented in engine.traits</span>
<span class="c1"># module. Don&#39;t do &#39;locale&#39; decisions here in the abstract layer of the</span>
<span class="c1"># search processor, just pass the value from user&#39;s choice unchanged to</span>
<span class="c1"># the engine request.</span>
<span class="k">if</span> <span class="nb">hasattr</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">engine</span><span class="p">,</span> <span class="s1">&#39;language&#39;</span><span class="p">)</span> <span class="ow">and</span> <span class="bp">self</span><span class="o">.</span><span class="n">engine</span><span class="o">.</span><span class="n">language</span><span class="p">:</span>
<span class="n">params</span><span class="p">[</span><span class="s1">&#39;language&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">engine</span><span class="o">.</span><span class="n">language</span>
<span class="k">else</span><span class="p">:</span>
<span class="n">params</span><span class="p">[</span><span class="s1">&#39;language&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="n">search_query</span><span class="o">.</span><span class="n">lang</span>
<span class="k">return</span> <span class="n">params</span></div>
<span class="nd">@abstractmethod</span>
<span class="k">def</span> <span class="nf">search</span><span class="p">(</span><span class="bp">self</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">result_container</span><span class="p">,</span> <span class="n">start_time</span><span class="p">,</span> <span class="n">timeout_limit</span><span class="p">):</span>
<span class="k">pass</span>
<span class="k">def</span> <span class="nf">get_tests</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="n">tests</span> <span class="o">=</span> <span class="nb">getattr</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">engine</span><span class="p">,</span> <span class="s1">&#39;tests&#39;</span><span class="p">,</span> <span class="kc">None</span><span class="p">)</span>
<span class="k">if</span> <span class="n">tests</span> <span class="ow">is</span> <span class="kc">None</span><span class="p">:</span>
<span class="n">tests</span> <span class="o">=</span> <span class="nb">getattr</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">engine</span><span class="p">,</span> <span class="s1">&#39;additional_tests&#39;</span><span class="p">,</span> <span class="p">{})</span>
<span class="n">tests</span><span class="o">.</span><span class="n">update</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">get_default_tests</span><span class="p">())</span>
<span class="k">return</span> <span class="n">tests</span>
<span class="k">def</span> <span class="nf">get_default_tests</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="k">return</span> <span class="p">{}</span></div>
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