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annas_archive.html

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  1. <!DOCTYPE html>
    2. 

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  8.     <title>searx.engines.annas_archive &#8212; SearXNG Documentation (2025.4.30+fd33559cf)</title>
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    27. 

  27.         <li class="nav-item nav-item-0"><a href="../../../index.html">SearXNG Documentation (2025.4.30+fd33559cf)</a> &#187;</li>
    28. 

  28.           <li class="nav-item nav-item-1"><a href="../../index.html" >Module code</a> &#187;</li>
    29. 

  29.           <li class="nav-item nav-item-2"><a href="../engines.html" accesskey="U">searx.engines</a> &#187;</li>
    30. 

  30.         <li class="nav-item nav-item-this"><a href="">searx.engines.annas_archive</a></li> 
    31. 

  31.       </ul>
    32. 

  32.     </div>  
    33. 

  33. 

  34.     <div class="document">
    35. 

  35.       <div class="documentwrapper">
    36. 

  36.         <div class="bodywrapper">
    37. 

  37.           <div class="body" role="main">
    38. 

  38.             
    39. 

  39.   <h1>Source code for searx.engines.annas_archive</h1><div class="highlight"><pre>
    40. 

  40. <span></span><span class="c1"># SPDX-License-Identifier: AGPL-3.0-or-later</span>
    41. 

  41. <span class="sd">&quot;&quot;&quot;`Anna&#39;s Archive`_ is a free non-profit online shadow library metasearch</span>
    42. 

  42. <span class="sd">engine providing access to a variety of book resources (also via IPFS), created</span>
    43. 

  43. <span class="sd">by a team of anonymous archivists (AnnaArchivist_).</span>
    44. 

  44. 

  45. <span class="sd">.. _Anna&#39;s Archive: https://annas-archive.org/</span>
    46. 

  46. <span class="sd">.. _AnnaArchivist: https://annas-software.org/AnnaArchivist/annas-archive</span>
    47. 

  47. 

  48. <span class="sd">Configuration</span>
    49. 

  49. <span class="sd">=============</span>
    50. 

  50. 

  51. <span class="sd">The engine has the following additional settings:</span>
    52. 

  52. 

  53. <span class="sd">- :py:obj:`aa_content`</span>
    54. 

  54. <span class="sd">- :py:obj:`aa_ext`</span>
    55. 

  55. <span class="sd">- :py:obj:`aa_sort`</span>
    56. 

  56. 

  57. <span class="sd">With this options a SearXNG maintainer is able to configure **additional**</span>
    58. 

  58. <span class="sd">engines for specific searches in Anna&#39;s Archive.  For example a engine to search</span>
    59. 

  59. <span class="sd">for *newest* articles and journals (PDF) / by shortcut ``!aaa &lt;search-term&gt;``.</span>
    60. 

  60. 

  61. <span class="sd">.. code:: yaml</span>
    62. 

  62. 

  63. <span class="sd">  - name: annas articles</span>
    64. 

  64. <span class="sd">    engine: annas_archive</span>
    65. 

  65. <span class="sd">    shortcut: aaa</span>
    66. 

  66. <span class="sd">    aa_content: &#39;magazine&#39;</span>
    67. 

  67. <span class="sd">    aa_ext: &#39;pdf&#39;</span>
    68. 

  68. <span class="sd">    aa_sort: &#39;newest&#39;</span>
    69. 

  69. 

  70. <span class="sd">Implementations</span>
    71. 

  71. <span class="sd">===============</span>
    72. 

  72. 

  73. <span class="sd">&quot;&quot;&quot;</span>
    74. 

  74. 

  75. <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">Dict</span><span class="p">,</span> <span class="n">Any</span><span class="p">,</span> <span class="n">Optional</span>
    76. 

  76. <span class="kn">from</span><span class="w"> </span><span class="nn">urllib.parse</span><span class="w"> </span><span class="kn">import</span> <span class="n">urlencode</span>
    77. 

  77. <span class="kn">from</span><span class="w"> </span><span class="nn">lxml</span><span class="w"> </span><span class="kn">import</span> <span class="n">html</span>
    78. 

  78. 

  79. <span class="kn">from</span><span class="w"> </span><span class="nn">searx.utils</span><span class="w"> </span><span class="kn">import</span> <span class="n">extract_text</span><span class="p">,</span> <span class="n">eval_xpath</span><span class="p">,</span> <span class="n">eval_xpath_getindex</span><span class="p">,</span> <span class="n">eval_xpath_list</span>
    80. 

  80. <span class="kn">from</span><span class="w"> </span><span class="nn">searx.enginelib.traits</span><span class="w"> </span><span class="kn">import</span> <span class="n">EngineTraits</span>
    81. 

  81. <span class="kn">from</span><span class="w"> </span><span class="nn">searx.data</span><span class="w"> </span><span class="kn">import</span> <span class="n">ENGINE_TRAITS</span>
    82. 

  82. 

  83. <span class="c1"># about</span>
    84. 

  84. <span class="n">about</span><span class="p">:</span> <span class="n">Dict</span><span class="p">[</span><span class="nb">str</span><span class="p">,</span> <span class="n">Any</span><span class="p">]</span> <span class="o">=</span> <span class="p">{</span>
    85. 

  85.     <span class="s2">&quot;website&quot;</span><span class="p">:</span> <span class="s2">&quot;https://annas-archive.org/&quot;</span><span class="p">,</span>
    86. 

  86.     <span class="s2">&quot;wikidata_id&quot;</span><span class="p">:</span> <span class="s2">&quot;Q115288326&quot;</span><span class="p">,</span>
    87. 

  87.     <span class="s2">&quot;official_api_documentation&quot;</span><span class="p">:</span> <span class="kc">None</span><span class="p">,</span>
    88. 

  88.     <span class="s2">&quot;use_official_api&quot;</span><span class="p">:</span> <span class="kc">False</span><span class="p">,</span>
    89. 

  89.     <span class="s2">&quot;require_api_key&quot;</span><span class="p">:</span> <span class="kc">False</span><span class="p">,</span>
    90. 

  90.     <span class="s2">&quot;results&quot;</span><span class="p">:</span> <span class="s2">&quot;HTML&quot;</span><span class="p">,</span>
    91. 

  91. <span class="p">}</span>
    92. 

  92. 

  93. <span class="c1"># engine dependent config</span>
    94. 

  94. <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="o">=</span> <span class="p">[</span><span class="s2">&quot;files&quot;</span><span class="p">]</span>
    95. 

  95. <span class="n">paging</span><span class="p">:</span> <span class="nb">bool</span> <span class="o">=</span> <span class="kc">True</span>
    96. 

  96. 

  97. <span class="c1"># search-url</span>
    98. 

  98. <span class="n">base_url</span><span class="p">:</span> <span class="nb">str</span> <span class="o">=</span> <span class="s2">&quot;https://annas-archive.org&quot;</span>
    99. 

  99. <span class="n">aa_content</span><span class="p">:</span> <span class="nb">str</span> <span class="o">=</span> <span class="s2">&quot;&quot;</span>
    100. 

  100. <span class="sd">&quot;&quot;&quot;Anan&#39;s search form field **Content** / possible values::</span>
    101. 

  101. 

  102. <span class="sd">    book_fiction, book_unknown, book_nonfiction,</span>
    103. 

  103. <span class="sd">    book_comic, magazine, standards_document</span>
    104. 

  104. 

  105. <span class="sd">To not filter use an empty string (default).</span>
    106. 

  106. <span class="sd">&quot;&quot;&quot;</span>
    107. 

  107. <span class="n">aa_sort</span><span class="p">:</span> <span class="nb">str</span> <span class="o">=</span> <span class="s1">&#39;&#39;</span>
    108. 

  108. <span class="sd">&quot;&quot;&quot;Sort Anna&#39;s results, possible values::</span>
    109. 

  109. 

  110. <span class="sd">    newest, oldest, largest, smallest</span>
    111. 

  111. 

  112. <span class="sd">To sort by *most relevant* use an empty string (default).&quot;&quot;&quot;</span>
    113. 

  113. 

  114. <span class="n">aa_ext</span><span class="p">:</span> <span class="nb">str</span> <span class="o">=</span> <span class="s1">&#39;&#39;</span>
    115. 

  115. <span class="sd">&quot;&quot;&quot;Filter Anna&#39;s results by a file ending.  Common filters for example are</span>
    116. 

  116. <span class="sd">``pdf`` and ``epub``.</span>
    117. 

  117. 

  118. <span class="sd">.. note::</span>
    119. 

  119. 

  120. <span class="sd">   Anna&#39;s Archive is a beta release: Filter results by file extension does not</span>
    121. 

  121. <span class="sd">   really work on Anna&#39;s Archive.</span>
    122. 

  122. 

  123. <span class="sd">&quot;&quot;&quot;</span>
    124. 

  124. 

  125. 

  126. <div class="viewcode-block" id="init">
    127. 

  127. <a class="viewcode-back" href="../../../dev/engines/online/annas_archive.html#searx.engines.annas_archive.init">[docs]</a>
    128. 

  128. <span class="k">def</span><span class="w"> </span><span class="nf">init</span><span class="p">(</span><span class="n">engine_settings</span><span class="o">=</span><span class="kc">None</span><span class="p">):</span>  <span class="c1"># pylint: disable=unused-argument</span>
    129. 

  129. <span class="w">    </span><span class="sd">&quot;&quot;&quot;Check of engine&#39;s settings.&quot;&quot;&quot;</span>
    130. 

  130.     <span class="n">traits</span> <span class="o">=</span> <span class="n">EngineTraits</span><span class="p">(</span><span class="o">**</span><span class="n">ENGINE_TRAITS</span><span class="p">[</span><span class="s1">&#39;annas archive&#39;</span><span class="p">])</span>
    131. 

  131. 

  132.     <span class="k">if</span> <span class="n">aa_content</span> <span class="ow">and</span> <span class="n">aa_content</span> <span class="ow">not</span> <span class="ow">in</span> <span class="n">traits</span><span class="o">.</span><span class="n">custom</span><span class="p">[</span><span class="s1">&#39;content&#39;</span><span class="p">]:</span>
    133. 

  133.         <span class="k">raise</span> <span class="ne">ValueError</span><span class="p">(</span><span class="sa">f</span><span class="s1">&#39;invalid setting content: </span><span class="si">{</span><span class="n">aa_content</span><span class="si">}</span><span class="s1">&#39;</span><span class="p">)</span>
    134. 

  134. 

  135.     <span class="k">if</span> <span class="n">aa_sort</span> <span class="ow">and</span> <span class="n">aa_sort</span> <span class="ow">not</span> <span class="ow">in</span> <span class="n">traits</span><span class="o">.</span><span class="n">custom</span><span class="p">[</span><span class="s1">&#39;sort&#39;</span><span class="p">]:</span>
    136. 

  136.         <span class="k">raise</span> <span class="ne">ValueError</span><span class="p">(</span><span class="sa">f</span><span class="s1">&#39;invalid setting sort: </span><span class="si">{</span><span class="n">aa_sort</span><span class="si">}</span><span class="s1">&#39;</span><span class="p">)</span>
    137. 

  137. 

  138.     <span class="k">if</span> <span class="n">aa_ext</span> <span class="ow">and</span> <span class="n">aa_ext</span> <span class="ow">not</span> <span class="ow">in</span> <span class="n">traits</span><span class="o">.</span><span class="n">custom</span><span class="p">[</span><span class="s1">&#39;ext&#39;</span><span class="p">]:</span>
    139. 

  139.         <span class="k">raise</span> <span class="ne">ValueError</span><span class="p">(</span><span class="sa">f</span><span class="s1">&#39;invalid setting ext: </span><span class="si">{</span><span class="n">aa_ext</span><span class="si">}</span><span class="s1">&#39;</span><span class="p">)</span></div>
    140. 

  140. 

  141. 

  142. 

  143. <span class="k">def</span><span class="w"> </span><span class="nf">request</span><span class="p">(</span><span class="n">query</span><span class="p">,</span> <span class="n">params</span><span class="p">:</span> <span class="n">Dict</span><span class="p">[</span><span class="nb">str</span><span class="p">,</span> <span class="n">Any</span><span class="p">])</span> <span class="o">-&gt;</span> <span class="n">Dict</span><span class="p">[</span><span class="nb">str</span><span class="p">,</span> <span class="n">Any</span><span class="p">]:</span>
    144. 

  144.     <span class="n">lang</span> <span class="o">=</span> <span class="n">traits</span><span class="o">.</span><span class="n">get_language</span><span class="p">(</span><span class="n">params</span><span class="p">[</span><span class="s2">&quot;language&quot;</span><span class="p">],</span> <span class="n">traits</span><span class="o">.</span><span class="n">all_locale</span><span class="p">)</span>  <span class="c1"># type: ignore</span>
    145. 

  145.     <span class="n">args</span> <span class="o">=</span> <span class="p">{</span>
    146. 

  146.         <span class="s1">&#39;lang&#39;</span><span class="p">:</span> <span class="n">lang</span><span class="p">,</span>
    147. 

  147.         <span class="s1">&#39;content&#39;</span><span class="p">:</span> <span class="n">aa_content</span><span class="p">,</span>
    148. 

  148.         <span class="s1">&#39;ext&#39;</span><span class="p">:</span> <span class="n">aa_ext</span><span class="p">,</span>
    149. 

  149.         <span class="s1">&#39;sort&#39;</span><span class="p">:</span> <span class="n">aa_sort</span><span class="p">,</span>
    150. 

  150.         <span class="s1">&#39;q&#39;</span><span class="p">:</span> <span class="n">query</span><span class="p">,</span>
    151. 

  151.         <span class="s1">&#39;page&#39;</span><span class="p">:</span> <span class="n">params</span><span class="p">[</span><span class="s1">&#39;pageno&#39;</span><span class="p">],</span>
    152. 

  152.     <span class="p">}</span>
    153. 

  153.     <span class="c1"># filter out None and empty values</span>
    154. 

  154.     <span class="n">filtered_args</span> <span class="o">=</span> <span class="nb">dict</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="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">args</span><span class="o">.</span><span class="n">items</span><span class="p">()</span> <span class="k">if</span> <span class="n">v</span><span class="p">)</span>
    155. 

  155.     <span class="n">params</span><span class="p">[</span><span class="s2">&quot;url&quot;</span><span class="p">]</span> <span class="o">=</span> <span class="sa">f</span><span class="s2">&quot;</span><span class="si">{</span><span class="n">base_url</span><span class="si">}</span><span class="s2">/search?</span><span class="si">{</span><span class="n">urlencode</span><span class="p">(</span><span class="n">filtered_args</span><span class="p">)</span><span class="si">}</span><span class="s2">&quot;</span>
    156. 

  156.     <span class="k">return</span> <span class="n">params</span>
    157. 

  157. 

  158. 

  159. <span class="k">def</span><span class="w"> </span><span class="nf">response</span><span class="p">(</span><span class="n">resp</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="n">List</span><span class="p">[</span><span class="n">Dict</span><span class="p">[</span><span class="nb">str</span><span class="p">,</span> <span class="n">Optional</span><span class="p">[</span><span class="nb">str</span><span class="p">]]]:</span>
    160. 

  160.     <span class="n">results</span><span class="p">:</span> <span class="n">List</span><span class="p">[</span><span class="n">Dict</span><span class="p">[</span><span class="nb">str</span><span class="p">,</span> <span class="n">Optional</span><span class="p">[</span><span class="nb">str</span><span class="p">]]]</span> <span class="o">=</span> <span class="p">[]</span>
    161. 

  161.     <span class="n">dom</span> <span class="o">=</span> <span class="n">html</span><span class="o">.</span><span class="n">fromstring</span><span class="p">(</span><span class="n">resp</span><span class="o">.</span><span class="n">text</span><span class="p">)</span>
    162. 

  162. 

  163.     <span class="k">for</span> <span class="n">item</span> <span class="ow">in</span> <span class="n">eval_xpath_list</span><span class="p">(</span><span class="n">dom</span><span class="p">,</span> <span class="s1">&#39;//main//div[contains(@class, &quot;h-[125]&quot;)]/a&#39;</span><span class="p">):</span>
    164. 

  164.         <span class="n">results</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">_get_result</span><span class="p">(</span><span class="n">item</span><span class="p">))</span>
    165. 

  165. 

  166.     <span class="c1"># The rendering of the WEB page is very strange; except the first position</span>
    167. 

  167.     <span class="c1"># all other positions of Anna&#39;s result page are enclosed in SGML comments.</span>
    168. 

  168.     <span class="c1"># These comments are *uncommented* by some JS code, see query of class</span>
    169. 

  169.     <span class="c1"># &#39;.js-scroll-hidden&#39; in Anna&#39;s HTML template:</span>
    170. 

  170.     <span class="c1">#   https://annas-software.org/AnnaArchivist/annas-archive/-/blob/main/allthethings/templates/macros/md5_list.html</span>
    171. 

  171. 

  172.     <span class="k">for</span> <span class="n">item</span> <span class="ow">in</span> <span class="n">eval_xpath_list</span><span class="p">(</span><span class="n">dom</span><span class="p">,</span> <span class="s1">&#39;//main//div[contains(@class, &quot;js-scroll-hidden&quot;)]&#39;</span><span class="p">):</span>
    173. 

  173.         <span class="n">item</span> <span class="o">=</span> <span class="n">html</span><span class="o">.</span><span class="n">fromstring</span><span class="p">(</span><span class="n">item</span><span class="o">.</span><span class="n">xpath</span><span class="p">(</span><span class="s1">&#39;./comment()&#39;</span><span class="p">)[</span><span class="mi">0</span><span class="p">]</span><span class="o">.</span><span class="n">text</span><span class="p">)</span>
    174. 

  174.         <span class="n">results</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">_get_result</span><span class="p">(</span><span class="n">item</span><span class="p">))</span>
    175. 

  175. 

  176.     <span class="k">return</span> <span class="n">results</span>
    177. 

  177. 

  178. 

  179. <span class="k">def</span><span class="w"> </span><span class="nf">_get_result</span><span class="p">(</span><span class="n">item</span><span class="p">):</span>
    180. 

  180.     <span class="k">return</span> <span class="p">{</span>
    181. 

  181.         <span class="s1">&#39;template&#39;</span><span class="p">:</span> <span class="s1">&#39;paper.html&#39;</span><span class="p">,</span>
    182. 

  182.         <span class="s1">&#39;url&#39;</span><span class="p">:</span> <span class="n">base_url</span> <span class="o">+</span> <span class="n">extract_text</span><span class="p">(</span><span class="n">eval_xpath_getindex</span><span class="p">(</span><span class="n">item</span><span class="p">,</span> <span class="s1">&#39;./@href&#39;</span><span class="p">,</span> <span class="mi">0</span><span class="p">)),</span>
    183. 

  183.         <span class="s1">&#39;title&#39;</span><span class="p">:</span> <span class="n">extract_text</span><span class="p">(</span><span class="n">eval_xpath</span><span class="p">(</span><span class="n">item</span><span class="p">,</span> <span class="s1">&#39;.//h3/text()[1]&#39;</span><span class="p">)),</span>
    184. 

  184.         <span class="s1">&#39;publisher&#39;</span><span class="p">:</span> <span class="n">extract_text</span><span class="p">(</span><span class="n">eval_xpath</span><span class="p">(</span><span class="n">item</span><span class="p">,</span> <span class="s1">&#39;.//div[contains(@class, &quot;text-sm&quot;)]&#39;</span><span class="p">)),</span>
    185. 

  185.         <span class="s1">&#39;authors&#39;</span><span class="p">:</span> <span class="p">[</span><span class="n">extract_text</span><span class="p">(</span><span class="n">eval_xpath</span><span class="p">(</span><span class="n">item</span><span class="p">,</span> <span class="s1">&#39;.//div[contains(@class, &quot;italic&quot;)]&#39;</span><span class="p">))],</span>
    186. 

  186.         <span class="s1">&#39;content&#39;</span><span class="p">:</span> <span class="n">extract_text</span><span class="p">(</span><span class="n">eval_xpath</span><span class="p">(</span><span class="n">item</span><span class="p">,</span> <span class="s1">&#39;.//div[contains(@class, &quot;text-xs&quot;)]&#39;</span><span class="p">)),</span>
    187. 

  187.         <span class="s1">&#39;thumbnail&#39;</span><span class="p">:</span> <span class="n">extract_text</span><span class="p">(</span><span class="n">eval_xpath_getindex</span><span class="p">(</span><span class="n">item</span><span class="p">,</span> <span class="s1">&#39;.//img/@src&#39;</span><span class="p">,</span> <span class="mi">0</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="n">allow_none</span><span class="o">=</span><span class="kc">True</span><span class="p">),</span>
    188. 

  188.     <span class="p">}</span>
    189. 

  189. 

  190. 

  191. <div class="viewcode-block" id="fetch_traits">
    192. 

  192. <a class="viewcode-back" href="../../../dev/engines/online/annas_archive.html#searx.engines.annas_archive.fetch_traits">[docs]</a>
    193. 

  193. <span class="k">def</span><span class="w"> </span><span class="nf">fetch_traits</span><span class="p">(</span><span class="n">engine_traits</span><span class="p">:</span> <span class="n">EngineTraits</span><span class="p">):</span>
    194. 

  194. <span class="w">    </span><span class="sd">&quot;&quot;&quot;Fetch languages and other search arguments from Anna&#39;s search form.&quot;&quot;&quot;</span>
    195. 

  195.     <span class="c1"># pylint: disable=import-outside-toplevel</span>
    196. 

  196. 

  197.     <span class="kn">import</span><span class="w"> </span><span class="nn">babel</span>
    198. 

  198.     <span class="kn">from</span><span class="w"> </span><span class="nn">searx.network</span><span class="w"> </span><span class="kn">import</span> <span class="n">get</span>  <span class="c1"># see https://github.com/searxng/searxng/issues/762</span>
    199. 

  199.     <span class="kn">from</span><span class="w"> </span><span class="nn">searx.locales</span><span class="w"> </span><span class="kn">import</span> <span class="n">language_tag</span>
    200. 

  200. 

  201.     <span class="n">engine_traits</span><span class="o">.</span><span class="n">all_locale</span> <span class="o">=</span> <span class="s1">&#39;&#39;</span>
    202. 

  202.     <span class="n">engine_traits</span><span class="o">.</span><span class="n">custom</span><span class="p">[</span><span class="s1">&#39;content&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="p">[]</span>
    203. 

  203.     <span class="n">engine_traits</span><span class="o">.</span><span class="n">custom</span><span class="p">[</span><span class="s1">&#39;ext&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="p">[]</span>
    204. 

  204.     <span class="n">engine_traits</span><span class="o">.</span><span class="n">custom</span><span class="p">[</span><span class="s1">&#39;sort&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="p">[]</span>
    205. 

  205. 

  206.     <span class="n">resp</span> <span class="o">=</span> <span class="n">get</span><span class="p">(</span><span class="n">base_url</span> <span class="o">+</span> <span class="s1">&#39;/search&#39;</span><span class="p">)</span>
    207. 

  207.     <span class="k">if</span> <span class="ow">not</span> <span class="n">resp</span><span class="o">.</span><span class="n">ok</span><span class="p">:</span>  <span class="c1"># type: ignore</span>
    208. 

  208.         <span class="k">raise</span> <span class="ne">RuntimeError</span><span class="p">(</span><span class="s2">&quot;Response from Anna&#39;s search page is not OK.&quot;</span><span class="p">)</span>
    209. 

  209.     <span class="n">dom</span> <span class="o">=</span> <span class="n">html</span><span class="o">.</span><span class="n">fromstring</span><span class="p">(</span><span class="n">resp</span><span class="o">.</span><span class="n">text</span><span class="p">)</span>  <span class="c1"># type: ignore</span>
    210. 

  210. 

  211.     <span class="c1"># supported language codes</span>
    212. 

  212. 

  213.     <span class="n">lang_map</span> <span class="o">=</span> <span class="p">{}</span>
    214. 

  214.     <span class="k">for</span> <span class="n">x</span> <span class="ow">in</span> <span class="n">eval_xpath_list</span><span class="p">(</span><span class="n">dom</span><span class="p">,</span> <span class="s2">&quot;//form//input[@name=&#39;lang&#39;]&quot;</span><span class="p">):</span>
    215. 

  215.         <span class="n">eng_lang</span> <span class="o">=</span> <span class="n">x</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s2">&quot;value&quot;</span><span class="p">)</span>
    216. 

  216.         <span class="k">if</span> <span class="n">eng_lang</span> <span class="ow">in</span> <span class="p">(</span><span class="s1">&#39;&#39;</span><span class="p">,</span> <span class="s1">&#39;_empty&#39;</span><span class="p">,</span> <span class="s1">&#39;nl-BE&#39;</span><span class="p">,</span> <span class="s1">&#39;und&#39;</span><span class="p">)</span> <span class="ow">or</span> <span class="n">eng_lang</span><span class="o">.</span><span class="n">startswith</span><span class="p">(</span><span class="s1">&#39;anti__&#39;</span><span class="p">):</span>
    217. 

  217.             <span class="k">continue</span>
    218. 

  218.         <span class="k">try</span><span class="p">:</span>
    219. 

  219.             <span class="n">locale</span> <span class="o">=</span> <span class="n">babel</span><span class="o">.</span><span class="n">Locale</span><span class="o">.</span><span class="n">parse</span><span class="p">(</span><span class="n">lang_map</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">eng_lang</span><span class="p">,</span> <span class="n">eng_lang</span><span class="p">),</span> <span class="n">sep</span><span class="o">=</span><span class="s1">&#39;-&#39;</span><span class="p">)</span>
    220. 

  220.         <span class="k">except</span> <span class="n">babel</span><span class="o">.</span><span class="n">UnknownLocaleError</span><span class="p">:</span>
    221. 

  221.             <span class="c1"># silently ignore unknown languages</span>
    222. 

  222.             <span class="c1"># print(&quot;ERROR: %s -&gt; %s is unknown by babel&quot; % (x.get(&quot;data-name&quot;), eng_lang))</span>
    223. 

  223.             <span class="k">continue</span>
    224. 

  224.         <span class="n">sxng_lang</span> <span class="o">=</span> <span class="n">language_tag</span><span class="p">(</span><span class="n">locale</span><span class="p">)</span>
    225. 

  225.         <span class="n">conflict</span> <span class="o">=</span> <span class="n">engine_traits</span><span class="o">.</span><span class="n">languages</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">sxng_lang</span><span class="p">)</span>
    226. 

  226.         <span class="k">if</span> <span class="n">conflict</span><span class="p">:</span>
    227. 

  227.             <span class="k">if</span> <span class="n">conflict</span> <span class="o">!=</span> <span class="n">eng_lang</span><span class="p">:</span>
    228. 

  228.                 <span class="nb">print</span><span class="p">(</span><span class="s2">&quot;CONFLICT: babel </span><span class="si">%s</span><span class="s2"> --&gt; </span><span class="si">%s</span><span class="s2">, </span><span class="si">%s</span><span class="s2">&quot;</span> <span class="o">%</span> <span class="p">(</span><span class="n">sxng_lang</span><span class="p">,</span> <span class="n">conflict</span><span class="p">,</span> <span class="n">eng_lang</span><span class="p">))</span>
    229. 

  229.             <span class="k">continue</span>
    230. 

  230.         <span class="n">engine_traits</span><span class="o">.</span><span class="n">languages</span><span class="p">[</span><span class="n">sxng_lang</span><span class="p">]</span> <span class="o">=</span> <span class="n">eng_lang</span>
    231. 

  231. 

  232.     <span class="k">for</span> <span class="n">x</span> <span class="ow">in</span> <span class="n">eval_xpath_list</span><span class="p">(</span><span class="n">dom</span><span class="p">,</span> <span class="s2">&quot;//form//input[@name=&#39;content&#39;]&quot;</span><span class="p">):</span>
    233. 

  233.         <span class="k">if</span> <span class="ow">not</span> <span class="n">x</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s2">&quot;value&quot;</span><span class="p">)</span><span class="o">.</span><span class="n">startswith</span><span class="p">(</span><span class="s2">&quot;anti__&quot;</span><span class="p">):</span>
    234. 

  234.             <span class="n">engine_traits</span><span class="o">.</span><span class="n">custom</span><span class="p">[</span><span class="s1">&#39;content&#39;</span><span class="p">]</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">x</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s2">&quot;value&quot;</span><span class="p">))</span>
    235. 

  235. 

  236.     <span class="k">for</span> <span class="n">x</span> <span class="ow">in</span> <span class="n">eval_xpath_list</span><span class="p">(</span><span class="n">dom</span><span class="p">,</span> <span class="s2">&quot;//form//input[@name=&#39;ext&#39;]&quot;</span><span class="p">):</span>
    237. 

  237.         <span class="k">if</span> <span class="ow">not</span> <span class="n">x</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s2">&quot;value&quot;</span><span class="p">)</span><span class="o">.</span><span class="n">startswith</span><span class="p">(</span><span class="s2">&quot;anti__&quot;</span><span class="p">):</span>
    238. 

  238.             <span class="n">engine_traits</span><span class="o">.</span><span class="n">custom</span><span class="p">[</span><span class="s1">&#39;ext&#39;</span><span class="p">]</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">x</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s2">&quot;value&quot;</span><span class="p">))</span>
    239. 

  239. 

  240.     <span class="k">for</span> <span class="n">x</span> <span class="ow">in</span> <span class="n">eval_xpath_list</span><span class="p">(</span><span class="n">dom</span><span class="p">,</span> <span class="s2">&quot;//form//select[@name=&#39;sort&#39;]//option&quot;</span><span class="p">):</span>
    241. 

  241.         <span class="n">engine_traits</span><span class="o">.</span><span class="n">custom</span><span class="p">[</span><span class="s1">&#39;sort&#39;</span><span class="p">]</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">x</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s2">&quot;value&quot;</span><span class="p">))</span>
    242. 

  242. 

  243.     <span class="c1"># for better diff; sort the persistence of these traits</span>
    244. 

  244.     <span class="n">engine_traits</span><span class="o">.</span><span class="n">custom</span><span class="p">[</span><span class="s1">&#39;content&#39;</span><span class="p">]</span><span class="o">.</span><span class="n">sort</span><span class="p">()</span>
    245. 

  245.     <span class="n">engine_traits</span><span class="o">.</span><span class="n">custom</span><span class="p">[</span><span class="s1">&#39;ext&#39;</span><span class="p">]</span><span class="o">.</span><span class="n">sort</span><span class="p">()</span>
    246. 

  246.     <span class="n">engine_traits</span><span class="o">.</span><span class="n">custom</span><span class="p">[</span><span class="s1">&#39;sort&#39;</span><span class="p">]</span><span class="o">.</span><span class="n">sort</span><span class="p">()</span></div>
    247. 

  247. 

  248. </pre></div>
    249. 

  249. 

  250.             <div class="clearer"></div>
    251. 

  251.           </div>
    252. 

  252.         </div>
    253. 

  253.       </div>
    254. 

  254.   <span id="sidebar-top"></span>
    255. 

  255.       <div class="sphinxsidebar" role="navigation" aria-label="Main">
    256. 

  256.         <div class="sphinxsidebarwrapper">
    257. 

  257.   
    258. 

  258.     
    259. 

  259.             <p class="logo"><a href="../../../index.html">
    260. 

  260.               <img class="logo" src="../../../_static/searxng-wordmark.svg" alt="Logo of SearXNG"/>
    261. 

  261.             </a></p>
    262. 

  262.   
    263. 

  263. 

  264. <h3><a href="../../../index.html">Table of Contents</a></h3>
    265. 

  265. <ul>
    266. 

  266. <li class="toctree-l1"><a class="reference internal" href="../../../user/index.html">User information</a></li>
    267. 

  267. <li class="toctree-l1"><a class="reference internal" href="../../../own-instance.html">Why use a private instance?</a></li>
    268. 

  268. <li class="toctree-l1"><a class="reference internal" href="../../../admin/index.html">Administrator documentation</a></li>
    269. 

  269. <li class="toctree-l1"><a class="reference internal" href="../../../dev/index.html">Developer documentation</a></li>
    270. 

  270. <li class="toctree-l1"><a class="reference internal" href="../../../utils/index.html">DevOps tooling box</a></li>
    271. 

  271. <li class="toctree-l1"><a class="reference internal" href="../../../src/index.html">Source-Code</a></li>
    272. 

  272. </ul>
    273. 

  273. 

  274.   <h3>Project Links</h3>
    275. 

  275.   <ul>
    276. 

  276.     <li><a href="https://github.com/searxng/searxng/tree/master">Source</a>
    277. 

  277.   
    278. 

  278.     <li><a href="https://github.com/searxng/searxng/wiki">Wiki</a>
    279. 

  279.   
    280. 

  280.     <li><a href="https://searx.space">Public instances</a>
    281. 

  281.   
    282. 

  282.     <li><a href="https://github.com/searxng/searxng/issues">Issue Tracker</a>
    283. 

  283.   </ul><h3>Navigation</h3>
    284. 

  284. <ul>
    285. 

  285.   <li><a href="../../../index.html">Overview</a>
    286. 

  286.     <ul>
    287. 

  287.       <li><a href="../../index.html">Module code</a>
    288. 

  288.         <ul>
    289. 

  289.       <li><a href="../engines.html">searx.engines</a>
    290. 

  290.         
    291. 

  291.           
    292. 

  292.           </ul>
    293. 

  293.       </li></ul>
    294. 

  294.       </li>
    295. 

  295.     </ul>
    296. 

  296.   </li>
    297. 

  297. </ul>
    298. 

  298. <search id="searchbox" style="display: none" role="search">
    299. 

  299.   <h3 id="searchlabel">Quick search</h3>
    300. 

  300.     <div class="searchformwrapper">
    301. 

  301.     <form class="search" action="../../../search.html" method="get">
    302. 

  302.       <input type="text" name="q" aria-labelledby="searchlabel" autocomplete="off" autocorrect="off" autocapitalize="off" spellcheck="false"/>
    303. 

  303.       <input type="submit" value="Go" />
    304. 

  304.     </form>
    305. 

  305.     </div>
    306. 

  306. </search>
    307. 

  307. <script>document.getElementById('searchbox').style.display = "block"</script>
    308. 

  308.         </div>
    309. 

  309.       </div>
    310. 

  310.       <div class="clearer"></div>
    311. 

  311.     </div>
    312. 

  312.     <div class="footer" role="contentinfo">
    313. 

  313.     &#169; Copyright SearXNG team.
    314. 

  314.     </div>
    315. 

  315.   </body>
    316. 

  316. </html>
    317.
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