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			409 lines
		
	
	
		
			30 KiB
		
	
	
	
		
			HTML
		
	
	
	
	
	
| <!DOCTYPE html>
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|   <h1>Source code for searx.enginelib</h1><div class="highlight"><pre>
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| <span></span><span class="c1"># SPDX-License-Identifier: AGPL-3.0-or-later</span>
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| <span class="sd">"""Implementations of the framework for the SearXNG engines.</span>
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| 
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| <span class="sd">- :py:obj:`searx.enginelib.EngineCache`</span>
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| <span class="sd">- :py:obj:`searx.enginelib.Engine`</span>
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| <span class="sd">- :py:obj:`searx.enginelib.traits`</span>
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| 
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| <span class="sd">There is a command line for developer purposes and for deeper analysis.  Here is</span>
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| <span class="sd">an example in which the command line is called in the development environment::</span>
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| 
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| <span class="sd">  $ ./manage pyenv.cmd bash --norc --noprofile</span>
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| <span class="sd">  (py3) python -m searx.enginelib --help</span>
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| 
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| <span class="sd">.. hint::</span>
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| 
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| <span class="sd">   The long term goal is to modularize all implementations of the engine</span>
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| <span class="sd">   framework here in this Python package.  ToDo:</span>
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| 
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| <span class="sd">   - move implementations of the :ref:`searx.engines loader` to a new module in</span>
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| <span class="sd">     the :py:obj:`searx.enginelib` namespace.</span>
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| 
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| <span class="sd">-----</span>
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| 
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| <span class="sd">"""</span>
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| <span class="kn">from</span><span class="w"> </span><span class="nn">__future__</span><span class="w"> </span><span class="kn">import</span> <span class="n">annotations</span>
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| 
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| <span class="n">__all__</span> <span class="o">=</span> <span class="p">[</span><span class="s2">"EngineCache"</span><span class="p">,</span> <span class="s2">"Engine"</span><span class="p">,</span> <span class="s2">"ENGINES_CACHE"</span><span class="p">]</span>
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| 
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| <span class="kn">from</span><span class="w"> </span><span class="nn">typing</span><span class="w"> </span><span class="kn">import</span> <span class="n">List</span><span class="p">,</span> <span class="n">Callable</span><span class="p">,</span> <span class="n">TYPE_CHECKING</span><span class="p">,</span> <span class="n">Any</span>
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| <span class="kn">import</span><span class="w"> </span><span class="nn">string</span>
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| <span class="kn">import</span><span class="w"> </span><span class="nn">typer</span>
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| 
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| <span class="kn">from</span><span class="w"> </span><span class="nn">..cache</span><span class="w"> </span><span class="kn">import</span> <span class="n">ExpireCache</span><span class="p">,</span> <span class="n">ExpireCacheCfg</span>
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| 
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| <span class="k">if</span> <span class="n">TYPE_CHECKING</span><span class="p">:</span>
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|     <span class="kn">from</span><span class="w"> </span><span class="nn">searx.enginelib</span><span class="w"> </span><span class="kn">import</span> <span class="n">traits</span>
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| 
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| 
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| <span class="n">ENGINES_CACHE</span> <span class="o">=</span> <span class="n">ExpireCache</span><span class="o">.</span><span class="n">build_cache</span><span class="p">(</span>
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|     <span class="n">ExpireCacheCfg</span><span class="p">(</span>
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|         <span class="n">name</span><span class="o">=</span><span class="s2">"ENGINES_CACHE"</span><span class="p">,</span>
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|         <span class="n">MAXHOLD_TIME</span><span class="o">=</span><span class="mi">60</span> <span class="o">*</span> <span class="mi">60</span> <span class="o">*</span> <span class="mi">24</span> <span class="o">*</span> <span class="mi">7</span><span class="p">,</span>  <span class="c1"># 7 days</span>
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|         <span class="n">MAINTENANCE_PERIOD</span><span class="o">=</span><span class="mi">60</span> <span class="o">*</span> <span class="mi">60</span><span class="p">,</span>  <span class="c1"># 2h</span>
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|     <span class="p">)</span>
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| <span class="p">)</span>
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| <span class="sd">"""Global :py:obj:`searx.cache.ExpireCacheSQLite` instance where the cached</span>
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| <span class="sd">values from all engines are stored.  The `MAXHOLD_TIME` is 7 days and the</span>
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| <span class="sd">`MAINTENANCE_PERIOD` is set to two hours."""</span>
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| 
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| <span class="n">app</span> <span class="o">=</span> <span class="n">typer</span><span class="o">.</span><span class="n">Typer</span><span class="p">()</span>
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| 
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| 
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| <span class="nd">@app</span><span class="o">.</span><span class="n">command</span><span class="p">()</span>
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| <span class="k">def</span><span class="w"> </span><span class="nf">state</span><span class="p">():</span>
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| <span class="w">    </span><span class="sd">"""Show state for the caches of the engines."""</span>
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| 
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|     <span class="n">title</span> <span class="o">=</span> <span class="s2">"cache tables and key/values"</span>
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|     <span class="nb">print</span><span class="p">(</span><span class="n">title</span><span class="p">)</span>
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|     <span class="nb">print</span><span class="p">(</span><span class="s2">"="</span> <span class="o">*</span> <span class="nb">len</span><span class="p">(</span><span class="n">title</span><span class="p">))</span>
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|     <span class="nb">print</span><span class="p">(</span><span class="n">ENGINES_CACHE</span><span class="o">.</span><span class="n">state</span><span class="p">()</span><span class="o">.</span><span class="n">report</span><span class="p">())</span>
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|     <span class="nb">print</span><span class="p">()</span>
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|     <span class="n">title</span> <span class="o">=</span> <span class="sa">f</span><span class="s2">"properties of </span><span class="si">{</span><span class="n">ENGINES_CACHE</span><span class="o">.</span><span class="n">cfg</span><span class="o">.</span><span class="n">name</span><span class="si">}</span><span class="s2">"</span>
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|     <span class="nb">print</span><span class="p">(</span><span class="n">title</span><span class="p">)</span>
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|     <span class="nb">print</span><span class="p">(</span><span class="s2">"="</span> <span class="o">*</span> <span class="nb">len</span><span class="p">(</span><span class="n">title</span><span class="p">))</span>
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|     <span class="nb">print</span><span class="p">(</span><span class="nb">str</span><span class="p">(</span><span class="n">ENGINES_CACHE</span><span class="o">.</span><span class="n">properties</span><span class="p">))</span>  <span class="c1"># type: ignore</span>
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| 
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| 
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| <span class="nd">@app</span><span class="o">.</span><span class="n">command</span><span class="p">()</span>
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| <span class="k">def</span><span class="w"> </span><span class="nf">maintenance</span><span class="p">(</span><span class="n">force</span><span class="p">:</span> <span class="nb">bool</span> <span class="o">=</span> <span class="kc">True</span><span class="p">):</span>
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| <span class="w">    </span><span class="sd">"""Carry out maintenance on cache of the engines."""</span>
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|     <span class="n">ENGINES_CACHE</span><span class="o">.</span><span class="n">maintenance</span><span class="p">(</span><span class="n">force</span><span class="o">=</span><span class="n">force</span><span class="p">)</span>
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| 
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| 
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| <div class="viewcode-block" id="EngineCache">
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| <a class="viewcode-back" href="../../dev/engines/enginelib.html#searx.enginelib.EngineCache">[docs]</a>
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| <span class="k">class</span><span class="w"> </span><span class="nc">EngineCache</span><span class="p">:</span>
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| <span class="w">    </span><span class="sd">"""Persistent (SQLite) key/value cache that deletes its values again after</span>
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| <span class="sd">    ``expire`` seconds (default/max: :py:obj:`MAXHOLD_TIME</span>
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| <span class="sd">    <searx.cache.ExpireCacheCfg.MAXHOLD_TIME>`).  This class is a wrapper around</span>
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| <span class="sd">    :py:obj:`ENGINES_CACHE` (:py:obj:`ExpireCacheSQLite</span>
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| <span class="sd">    <searx.cache.ExpireCacheSQLite>`).</span>
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| 
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| <span class="sd">    In the :origin:`searx/engines/demo_offline.py` engine you can find an</span>
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| <span class="sd">    exemplary implementation of such a cache other exaples are implemeted</span>
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| <span class="sd">    in:</span>
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| 
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| <span class="sd">    - :origin:`searx/engines/radio_browser.py`</span>
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| <span class="sd">    - :origin:`searx/engines/soundcloud.py`</span>
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| <span class="sd">    - :origin:`searx/engines/startpage.py`</span>
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| 
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| <span class="sd">    .. code: python</span>
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| 
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| <span class="sd">       from searx.enginelib import EngineCache</span>
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| <span class="sd">       CACHE: EngineCache</span>
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| 
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| <span class="sd">       def init(engine_settings):</span>
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| <span class="sd">           global CACHE</span>
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| <span class="sd">           CACHE = EngineCache(engine_settings["name"])</span>
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| 
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| <span class="sd">       def request(query, params):</span>
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| <span class="sd">           token = CACHE.get(key="token")</span>
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| <span class="sd">           if token is None:</span>
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| <span class="sd">               token = get_token()</span>
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| <span class="sd">               # cache token of this engine for 1h</span>
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| <span class="sd">               CACHE.set(key="token", value=token, expire=3600)</span>
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| <span class="sd">           ...</span>
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| 
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| <span class="sd">    For introspection of the DB, jump into developer environment and run command to</span>
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| <span class="sd">    show cache state::</span>
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| 
 | |
| <span class="sd">        $ ./manage pyenv.cmd bash --norc --noprofile</span>
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| <span class="sd">        (py3) python -m searx.enginelib cache state</span>
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| 
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| <span class="sd">        cache tables and key/values</span>
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| <span class="sd">        ===========================</span>
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| <span class="sd">        [demo_offline        ] 2025-04-22 11:32:50 count        --> (int) 4</span>
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| <span class="sd">        [startpage           ] 2025-04-22 12:32:30 SC_CODE      --> (str) fSOBnhEMlDfE20</span>
 | |
| <span class="sd">        [duckduckgo          ] 2025-04-22 12:32:31 4dff493e.... --> (str) 4-128634958369380006627592672385352473325</span>
 | |
| <span class="sd">        [duckduckgo          ] 2025-04-22 12:40:06 3e2583e2.... --> (str) 4-263126175288871260472289814259666848451</span>
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| <span class="sd">        [radio_browser       ] 2025-04-23 11:33:08 servers      --> (list) ['https://de2.api.radio-browser.info',  ...]</span>
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| <span class="sd">        [soundcloud          ] 2025-04-29 11:40:06 guest_client_id --> (str) EjkRJG0BLNEZquRiPZYdNtJdyGtTuHdp</span>
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| <span class="sd">        [wolframalpha        ] 2025-04-22 12:40:06 code         --> (str) 5aa79f86205ad26188e0e26e28fb7ae7</span>
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| <span class="sd">        number of tables: 6</span>
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| <span class="sd">        number of key/value pairs: 7</span>
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| 
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| <span class="sd">    In the "cache tables and key/values" section, the table name (engine name) is at</span>
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| <span class="sd">    first position on the second there is the calculated expire date and on the</span>
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| <span class="sd">    third and fourth position the key/value is shown.</span>
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| 
 | |
| <span class="sd">    About duckduckgo: The *vqd coode* of ddg depends on the query term and therefore</span>
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| <span class="sd">    the key is a hash value of the query term (to not to store the raw query term).</span>
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| 
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| <span class="sd">    In the "properties of ENGINES_CACHE" section all properties of the SQLiteAppl /</span>
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| <span class="sd">    ExpireCache and their last modification date are shown::</span>
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| 
 | |
| <span class="sd">        properties of ENGINES_CACHE</span>
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| <span class="sd">        ===========================</span>
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| <span class="sd">        [last modified: 2025-04-22 11:32:27] DB_SCHEMA           : 1</span>
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| <span class="sd">        [last modified: 2025-04-22 11:32:27] LAST_MAINTENANCE    :</span>
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| <span class="sd">        [last modified: 2025-04-22 11:32:27] crypt_hash          : ca612e3566fdfd7cf7efe...</span>
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| <span class="sd">        [last modified: 2025-04-22 11:32:30] CACHE-TABLE--demo_offline: demo_offline</span>
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| <span class="sd">        [last modified: 2025-04-22 11:32:30] CACHE-TABLE--startpage: startpage</span>
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| <span class="sd">        [last modified: 2025-04-22 11:32:31] CACHE-TABLE--duckduckgo: duckduckgo</span>
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| <span class="sd">        [last modified: 2025-04-22 11:33:08] CACHE-TABLE--radio_browser: radio_browser</span>
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| <span class="sd">        [last modified: 2025-04-22 11:40:06] CACHE-TABLE--soundcloud: soundcloud</span>
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| <span class="sd">        [last modified: 2025-04-22 11:40:06] CACHE-TABLE--wolframalpha: wolframalpha</span>
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| 
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| <span class="sd">    These properties provide information about the state of the ExpireCache and</span>
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| <span class="sd">    control the behavior.  For example, the maintenance intervals are controlled by</span>
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| <span class="sd">    the last modification date of the LAST_MAINTENANCE property and the hash value</span>
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| <span class="sd">    of the password can be used to detect whether the password has been changed (in</span>
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| <span class="sd">    this case the DB entries can no longer be decrypted and the entire cache must be</span>
 | |
| <span class="sd">    discarded).</span>
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| <span class="sd">    """</span>
 | |
| 
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|     <span class="k">def</span><span class="w"> </span><span class="fm">__init__</span><span class="p">(</span><span class="bp">self</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="n">expire</span><span class="p">:</span> <span class="nb">int</span> <span class="o">|</span> <span class="kc">None</span> <span class="o">=</span> <span class="kc">None</span><span class="p">):</span>
 | |
|         <span class="bp">self</span><span class="o">.</span><span class="n">expire</span> <span class="o">=</span> <span class="n">expire</span> <span class="ow">or</span> <span class="n">ENGINES_CACHE</span><span class="o">.</span><span class="n">cfg</span><span class="o">.</span><span class="n">MAXHOLD_TIME</span>
 | |
|         <span class="n">_valid</span> <span class="o">=</span> <span class="s2">"-_."</span> <span class="o">+</span> <span class="n">string</span><span class="o">.</span><span class="n">ascii_letters</span> <span class="o">+</span> <span class="n">string</span><span class="o">.</span><span class="n">digits</span>
 | |
|         <span class="bp">self</span><span class="o">.</span><span class="n">table_name</span> <span class="o">=</span> <span class="s2">""</span><span class="o">.</span><span class="n">join</span><span class="p">([</span><span class="n">c</span> <span class="k">if</span> <span class="n">c</span> <span class="ow">in</span> <span class="n">_valid</span> <span class="k">else</span> <span class="s2">"_"</span> <span class="k">for</span> <span class="n">c</span> <span class="ow">in</span> <span class="n">engine_name</span><span class="p">])</span>
 | |
| 
 | |
|     <span class="k">def</span><span class="w"> </span><span class="nf">set</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">key</span><span class="p">:</span> <span class="nb">str</span><span class="p">,</span> <span class="n">value</span><span class="p">:</span> <span class="n">Any</span><span class="p">,</span> <span class="n">expire</span><span class="p">:</span> <span class="nb">int</span> <span class="o">|</span> <span class="kc">None</span> <span class="o">=</span> <span class="kc">None</span><span class="p">)</span> <span class="o">-></span> <span class="nb">bool</span><span class="p">:</span>
 | |
|         <span class="k">return</span> <span class="n">ENGINES_CACHE</span><span class="o">.</span><span class="n">set</span><span class="p">(</span>
 | |
|             <span class="n">key</span><span class="o">=</span><span class="n">key</span><span class="p">,</span>
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|             <span class="n">value</span><span class="o">=</span><span class="n">value</span><span class="p">,</span>
 | |
|             <span class="n">expire</span><span class="o">=</span><span class="n">expire</span> <span class="ow">or</span> <span class="bp">self</span><span class="o">.</span><span class="n">expire</span><span class="p">,</span>
 | |
|             <span class="n">ctx</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">table_name</span><span class="p">,</span>
 | |
|         <span class="p">)</span>
 | |
| 
 | |
|     <span class="k">def</span><span class="w"> </span><span class="nf">get</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">key</span><span class="p">:</span> <span class="nb">str</span><span class="p">,</span> <span class="n">default</span><span class="o">=</span><span class="kc">None</span><span class="p">)</span> <span class="o">-></span> <span class="n">Any</span><span class="p">:</span>
 | |
|         <span class="k">return</span> <span class="n">ENGINES_CACHE</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">key</span><span class="p">,</span> <span class="n">default</span><span class="o">=</span><span class="n">default</span><span class="p">,</span> <span class="n">ctx</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">table_name</span><span class="p">)</span>
 | |
| 
 | |
|     <span class="k">def</span><span class="w"> </span><span class="nf">secret_hash</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">name</span><span class="p">:</span> <span class="nb">str</span> <span class="o">|</span> <span class="nb">bytes</span><span class="p">)</span> <span class="o">-></span> <span class="nb">str</span><span class="p">:</span>
 | |
|         <span class="k">return</span> <span class="n">ENGINES_CACHE</span><span class="o">.</span><span class="n">secret_hash</span><span class="p">(</span><span class="n">name</span><span class="o">=</span><span class="n">name</span><span class="p">)</span></div>
 | |
| 
 | |
| 
 | |
| 
 | |
| <div class="viewcode-block" id="Engine">
 | |
| <a class="viewcode-back" href="../../dev/engines/enginelib.html#searx.enginelib.Engine">[docs]</a>
 | |
| <span class="k">class</span><span class="w"> </span><span class="nc">Engine</span><span class="p">:</span>  <span class="c1"># pylint: disable=too-few-public-methods</span>
 | |
| <span class="w">    </span><span class="sd">"""Class of engine instances build from YAML settings.</span>
 | |
| 
 | |
| <span class="sd">    Further documentation see :ref:`general engine configuration`.</span>
 | |
| 
 | |
| <span class="sd">    .. hint::</span>
 | |
| 
 | |
| <span class="sd">       This class is currently never initialized and only used for type hinting.</span>
 | |
| <span class="sd">    """</span>
 | |
| 
 | |
|     <span class="c1"># Common options in the engine module</span>
 | |
| 
 | |
|     <span class="n">engine_type</span><span class="p">:</span> <span class="nb">str</span>
 | |
| <span class="w">    </span><span class="sd">"""Type of the engine (:ref:`searx.search.processors`)"""</span>
 | |
| 
 | |
|     <span class="n">paging</span><span class="p">:</span> <span class="nb">bool</span>
 | |
| <span class="w">    </span><span class="sd">"""Engine supports multiple pages."""</span>
 | |
| 
 | |
|     <span class="n">time_range_support</span><span class="p">:</span> <span class="nb">bool</span>
 | |
| <span class="w">    </span><span class="sd">"""Engine supports search time range."""</span>
 | |
| 
 | |
|     <span class="n">safesearch</span><span class="p">:</span> <span class="nb">bool</span>
 | |
| <span class="w">    </span><span class="sd">"""Engine supports SafeSearch"""</span>
 | |
| 
 | |
|     <span class="n">language_support</span><span class="p">:</span> <span class="nb">bool</span>
 | |
| <span class="w">    </span><span class="sd">"""Engine supports languages (locales) search."""</span>
 | |
| 
 | |
|     <span class="n">language</span><span class="p">:</span> <span class="nb">str</span>
 | |
| <span class="w">    </span><span class="sd">"""For an engine, when there is ``language: ...`` in the YAML settings the engine</span>
 | |
| <span class="sd">    does support only this one language:</span>
 | |
| 
 | |
| <span class="sd">    .. code:: yaml</span>
 | |
| 
 | |
| <span class="sd">      - name: google french</span>
 | |
| <span class="sd">        engine: google</span>
 | |
| <span class="sd">        language: fr</span>
 | |
| <span class="sd">    """</span>
 | |
| 
 | |
|     <span class="n">region</span><span class="p">:</span> <span class="nb">str</span>
 | |
| <span class="w">    </span><span class="sd">"""For an engine, when there is ``region: ...`` in the YAML settings the engine</span>
 | |
| <span class="sd">    does support only this one region::</span>
 | |
| 
 | |
| <span class="sd">    .. code:: yaml</span>
 | |
| 
 | |
| <span class="sd">      - name: google belgium</span>
 | |
| <span class="sd">        engine: google</span>
 | |
| <span class="sd">        region: fr-BE</span>
 | |
| <span class="sd">    """</span>
 | |
| 
 | |
|     <span class="n">fetch_traits</span><span class="p">:</span> <span class="n">Callable</span>
 | |
| <span class="w">    </span><span class="sd">"""Function to to fetch engine's traits from origin."""</span>
 | |
| 
 | |
|     <span class="n">traits</span><span class="p">:</span> <span class="n">traits</span><span class="o">.</span><span class="n">EngineTraits</span>
 | |
| <span class="w">    </span><span class="sd">"""Traits of the engine."""</span>
 | |
| 
 | |
|     <span class="c1"># settings.yml</span>
 | |
| 
 | |
|     <span class="n">categories</span><span class="p">:</span> <span class="n">List</span><span class="p">[</span><span class="nb">str</span><span class="p">]</span>
 | |
| <span class="w">    </span><span class="sd">"""Specifies to which :ref:`engine categories` the engine should be added."""</span>
 | |
| 
 | |
|     <span class="n">name</span><span class="p">:</span> <span class="nb">str</span>
 | |
| <span class="w">    </span><span class="sd">"""Name that will be used across SearXNG to define this engine.  In settings, on</span>
 | |
| <span class="sd">    the result page .."""</span>
 | |
| 
 | |
|     <span class="n">engine</span><span class="p">:</span> <span class="nb">str</span>
 | |
| <span class="w">    </span><span class="sd">"""Name of the python file used to handle requests and responses to and from</span>
 | |
| <span class="sd">    this search engine (file name from :origin:`searx/engines` without</span>
 | |
| <span class="sd">    ``.py``)."""</span>
 | |
| 
 | |
|     <span class="n">enable_http</span><span class="p">:</span> <span class="nb">bool</span>
 | |
| <span class="w">    </span><span class="sd">"""Enable HTTP (by default only HTTPS is enabled)."""</span>
 | |
| 
 | |
|     <span class="n">shortcut</span><span class="p">:</span> <span class="nb">str</span>
 | |
| <span class="w">    </span><span class="sd">"""Code used to execute bang requests (``!foo``)"""</span>
 | |
| 
 | |
|     <span class="n">timeout</span><span class="p">:</span> <span class="nb">float</span>
 | |
| <span class="w">    </span><span class="sd">"""Specific timeout for search-engine."""</span>
 | |
| 
 | |
|     <span class="n">display_error_messages</span><span class="p">:</span> <span class="nb">bool</span>
 | |
| <span class="w">    </span><span class="sd">"""Display error messages on the web UI."""</span>
 | |
| 
 | |
|     <span class="n">proxies</span><span class="p">:</span> <span class="nb">dict</span>
 | |
| <span class="w">    </span><span class="sd">"""Set proxies for a specific engine (YAML):</span>
 | |
| 
 | |
| <span class="sd">    .. code:: yaml</span>
 | |
| 
 | |
| <span class="sd">       proxies :</span>
 | |
| <span class="sd">         http:  socks5://proxy:port</span>
 | |
| <span class="sd">         https: socks5://proxy:port</span>
 | |
| <span class="sd">    """</span>
 | |
| 
 | |
|     <span class="n">disabled</span><span class="p">:</span> <span class="nb">bool</span>
 | |
| <span class="w">    </span><span class="sd">"""To disable by default the engine, but not deleting it.  It will allow the</span>
 | |
| <span class="sd">    user to manually activate it in the settings."""</span>
 | |
| 
 | |
|     <span class="n">inactive</span><span class="p">:</span> <span class="nb">bool</span>
 | |
| <span class="w">    </span><span class="sd">"""Remove the engine from the settings (*disabled & removed*)."""</span>
 | |
| 
 | |
|     <span class="n">about</span><span class="p">:</span> <span class="nb">dict</span>
 | |
| <span class="w">    </span><span class="sd">"""Additional fields describing the engine.</span>
 | |
| 
 | |
| <span class="sd">    .. code:: yaml</span>
 | |
| 
 | |
| <span class="sd">       about:</span>
 | |
| <span class="sd">          website: https://example.com</span>
 | |
| <span class="sd">          wikidata_id: Q306656</span>
 | |
| <span class="sd">          official_api_documentation: https://example.com/api-doc</span>
 | |
| <span class="sd">          use_official_api: true</span>
 | |
| <span class="sd">          require_api_key: true</span>
 | |
| <span class="sd">          results: HTML</span>
 | |
| <span class="sd">    """</span>
 | |
| 
 | |
|     <span class="n">using_tor_proxy</span><span class="p">:</span> <span class="nb">bool</span>
 | |
| <span class="w">    </span><span class="sd">"""Using tor proxy (``true``) or not (``false``) for this engine."""</span>
 | |
| 
 | |
|     <span class="n">send_accept_language_header</span><span class="p">:</span> <span class="nb">bool</span>
 | |
| <span class="w">    </span><span class="sd">"""When this option is activated, the language (locale) that is selected by</span>
 | |
| <span class="sd">    the user is used to build and send a ``Accept-Language`` header in the</span>
 | |
| <span class="sd">    request to the origin search engine."""</span>
 | |
| 
 | |
|     <span class="n">tokens</span><span class="p">:</span> <span class="n">List</span><span class="p">[</span><span class="nb">str</span><span class="p">]</span>
 | |
| <span class="w">    </span><span class="sd">"""A list of secret tokens to make this engine *private*, more details see</span>
 | |
| <span class="sd">    :ref:`private engines`."""</span>
 | |
| 
 | |
|     <span class="n">weight</span><span class="p">:</span> <span class="nb">int</span>
 | |
| <span class="w">    </span><span class="sd">"""Weighting of the results of this engine (:ref:`weight <settings engines>`)."""</span></div>
 | |
| 
 | |
| </pre></div>
 | |
| 
 | |
|             <div class="clearer"></div>
 | |
|           </div>
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|         </div>
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|       </div>
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|   <span id="sidebar-top"></span>
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|       <div class="sphinxsidebar" role="navigation" aria-label="Main">
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|         <div class="sphinxsidebarwrapper">
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|   
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|     
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|             <p class="logo"><a href="../../index.html">
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|               <img class="logo" src="../../_static/searxng-wordmark.svg" alt="Logo of SearXNG"/>
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|             </a></p>
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|   
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| 
 | |
| <h3><a href="../../index.html">Table of Contents</a></h3>
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| <ul>
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| <li class="toctree-l1"><a class="reference internal" href="../../user/index.html">User information</a></li>
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| <li class="toctree-l1"><a class="reference internal" href="../../own-instance.html">Why use a private instance?</a></li>
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| <li class="toctree-l1"><a class="reference internal" href="../../admin/index.html">Administrator documentation</a></li>
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| <li class="toctree-l1"><a class="reference internal" href="../../dev/index.html">Developer documentation</a></li>
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| <li class="toctree-l1"><a class="reference internal" href="../../utils/index.html">DevOps tooling box</a></li>
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| <li class="toctree-l1"><a class="reference internal" href="../../src/index.html">Source-Code</a></li>
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| </ul>
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| 
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|   <h3>Project Links</h3>
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|   <ul>
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|     <li><a href="https://github.com/searxng/searxng/tree/master">Source</a>
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|   
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|     <li><a href="https://github.com/searxng/searxng/wiki">Wiki</a>
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|   
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|     <li><a href="https://searx.space">Public instances</a>
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|   
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|     <li><a href="https://github.com/searxng/searxng/issues">Issue Tracker</a>
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|   </ul><h3>Navigation</h3>
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| <ul>
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|   <li><a href="../../index.html">Overview</a>
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|     <ul>
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|       <li><a href="../index.html">Module code</a>
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|         
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|           
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|           </ul>
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|       </li>
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|     </ul>
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|   </li>
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| </ul>
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| <search id="searchbox" style="display: none" role="search">
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|   <h3 id="searchlabel">Quick search</h3>
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|     <div class="searchformwrapper">
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|     <form class="search" action="../../search.html" method="get">
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|       <input type="text" name="q" aria-labelledby="searchlabel" autocomplete="off" autocorrect="off" autocapitalize="off" spellcheck="false"/>
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|       <input type="submit" value="Go" />
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|     </form>
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|     </div>
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| </search>
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| <script>document.getElementById('searchbox').style.display = "block"</script>
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|         </div>
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|       </div>
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|       <div class="clearer"></div>
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|     </div>
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|     <div class="footer" role="contentinfo">
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|     © Copyright SearXNG team.
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|     </div>
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|   </body>
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| </html> | 
