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<h1>Source code for searx.engines.mullvad_leta</h1><div class="highlight"><pre>
<span></span><span class="c1"># SPDX-License-Identifier: AGPL-3.0-or-later</span>
<span class="sd">"""This is the implementation of the Mullvad-Leta meta-search engine.</span>
<span class="sd">This engine **REQUIRES** that searxng operate within a Mullvad VPN</span>
<span class="sd">If using docker, consider using gluetun for easily connecting to the Mullvad</span>
<span class="sd">- https://github.com/qdm12/gluetun</span>
<span class="sd">Otherwise, follow instructions provided by Mullvad for enabling the VPN on Linux</span>
<span class="sd">- https://mullvad.net/en/help/install-mullvad-app-linux</span>
<span class="sd">.. hint::</span>
<span class="sd"> The :py:obj:`EngineTraits` is empty by default. Maintainers have to run</span>
<span class="sd"> ``make data.traits`` (in the Mullvad VPN / :py:obj:`fetch_traits`) and rebase</span>
<span class="sd"> the modified JSON file ``searx/data/engine_traits.json`` on every single</span>
<span class="sd"> update of SearXNG!</span>
<span class="sd">"""</span>
<span class="kn">from</span> <span class="nn">__future__</span> <span class="kn">import</span> <span class="n">annotations</span>
<span class="kn">from</span> <span class="nn">typing</span> <span class="kn">import</span> <span class="n">TYPE_CHECKING</span>
<span class="kn">from</span> <span class="nn">httpx</span> <span class="kn">import</span> <span class="n">Response</span>
<span class="kn">from</span> <span class="nn">lxml</span> <span class="kn">import</span> <span class="n">html</span>
<span class="kn">from</span> <span class="nn">searx.enginelib.traits</span> <span class="kn">import</span> <span class="n">EngineTraits</span>
<span class="kn">from</span> <span class="nn">searx.locales</span> <span class="kn">import</span> <span class="n">region_tag</span><span class="p">,</span> <span class="n">get_official_locales</span>
<span class="kn">from</span> <span class="nn">searx.utils</span> <span class="kn">import</span> <span class="n">eval_xpath</span><span class="p">,</span> <span class="n">extract_text</span><span class="p">,</span> <span class="n">eval_xpath_list</span>
<span class="kn">from</span> <span class="nn">searx.exceptions</span> <span class="kn">import</span> <span class="n">SearxEngineResponseException</span>
<span class="k">if</span> <span class="n">TYPE_CHECKING</span><span class="p">:</span>
<span class="kn">import</span> <span class="nn">logging</span>
<span class="n">logger</span> <span class="o">=</span> <span class="n">logging</span><span class="o">.</span><span class="n">getLogger</span><span class="p">()</span>
<span class="n">traits</span><span class="p">:</span> <span class="n">EngineTraits</span>
<span class="n">use_cache</span><span class="p">:</span> <span class="nb">bool</span> <span class="o">=</span> <span class="kc">True</span> <span class="c1"># non-cache use only has 100 searches per day!</span>
<span class="n">leta_engine</span><span class="p">:</span> <span class="nb">str</span> <span class="o">=</span> <span class="s1">'google'</span>
<span class="n">search_url</span> <span class="o">=</span> <span class="s2">"https://leta.mullvad.net"</span>
<span class="c1"># about</span>
<span class="n">about</span> <span class="o">=</span> <span class="p">{</span>
<span class="s2">"website"</span><span class="p">:</span> <span class="n">search_url</span><span class="p">,</span>
<span class="s2">"wikidata_id"</span><span class="p">:</span> <span class="s1">'Q47008412'</span><span class="p">,</span> <span class="c1"># the Mullvad id - not leta, but related</span>
<span class="s2">"official_api_documentation"</span><span class="p">:</span> <span class="s1">'https://leta.mullvad.net/faq'</span><span class="p">,</span>
<span class="s2">"use_official_api"</span><span class="p">:</span> <span class="kc">False</span><span class="p">,</span>
<span class="s2">"require_api_key"</span><span class="p">:</span> <span class="kc">False</span><span class="p">,</span>
<span class="s2">"results"</span><span class="p">:</span> <span class="s1">'HTML'</span><span class="p">,</span>
<span class="p">}</span>
<span class="c1"># engine dependent config</span>
<span class="n">categories</span> <span class="o">=</span> <span class="p">[</span><span class="s1">'general'</span><span class="p">,</span> <span class="s1">'web'</span><span class="p">]</span>
<span class="n">paging</span> <span class="o">=</span> <span class="kc">True</span>
<span class="n">max_page</span> <span class="o">=</span> <span class="mi">50</span>
<span class="n">time_range_support</span> <span class="o">=</span> <span class="kc">True</span>
<span class="n">time_range_dict</span> <span class="o">=</span> <span class="p">{</span>
<span class="s2">"day"</span><span class="p">:</span> <span class="s2">"d1"</span><span class="p">,</span>
<span class="s2">"week"</span><span class="p">:</span> <span class="s2">"w1"</span><span class="p">,</span>
<span class="s2">"month"</span><span class="p">:</span> <span class="s2">"m1"</span><span class="p">,</span>
<span class="s2">"year"</span><span class="p">:</span> <span class="s2">"y1"</span><span class="p">,</span>
<span class="p">}</span>
<span class="n">available_leta_engines</span> <span class="o">=</span> <span class="p">[</span>
<span class="s1">'google'</span><span class="p">,</span> <span class="c1"># first will be default if provided engine is invalid</span>
<span class="s1">'brave'</span><span class="p">,</span>
<span class="p">]</span>
<div class="viewcode-block" id="is_vpn_connected">
<a class="viewcode-back" href="../../../dev/engines/online/mullvad_leta.html#searx.engines.mullvad_leta.is_vpn_connected">[docs]</a>
<span class="k">def</span> <span class="nf">is_vpn_connected</span><span class="p">(</span><span class="n">dom</span><span class="p">:</span> <span class="n">html</span><span class="o">.</span><span class="n">HtmlElement</span><span class="p">)</span> <span class="o">-></span> <span class="nb">bool</span><span class="p">:</span>
<span class="w"> </span><span class="sd">"""Returns true if the VPN is connected, False otherwise"""</span>
<span class="n">connected_text</span> <span class="o">=</span> <span class="n">extract_text</span><span class="p">(</span><span class="n">eval_xpath</span><span class="p">(</span><span class="n">dom</span><span class="p">,</span> <span class="s1">'//main/div/p[1]'</span><span class="p">))</span>
<span class="k">return</span> <span class="n">connected_text</span> <span class="o">!=</span> <span class="s1">'You are not connected to Mullvad VPN.'</span></div>
<div class="viewcode-block" id="assign_headers">
<a class="viewcode-back" href="../../../dev/engines/online/mullvad_leta.html#searx.engines.mullvad_leta.assign_headers">[docs]</a>
<span class="k">def</span> <span class="nf">assign_headers</span><span class="p">(</span><span class="n">headers</span><span class="p">:</span> <span class="nb">dict</span><span class="p">)</span> <span class="o">-></span> <span class="nb">dict</span><span class="p">:</span>
<span class="w"> </span><span class="sd">"""Assigns the headers to make a request to Mullvad Leta"""</span>
<span class="n">headers</span><span class="p">[</span><span class="s1">'Accept'</span><span class="p">]</span> <span class="o">=</span> <span class="s2">"text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,*/*;q=0.8"</span>
<span class="n">headers</span><span class="p">[</span><span class="s1">'Content-Type'</span><span class="p">]</span> <span class="o">=</span> <span class="s2">"application/x-www-form-urlencoded"</span>
<span class="n">headers</span><span class="p">[</span><span class="s1">'Host'</span><span class="p">]</span> <span class="o">=</span> <span class="s2">"leta.mullvad.net"</span>
<span class="n">headers</span><span class="p">[</span><span class="s1">'Origin'</span><span class="p">]</span> <span class="o">=</span> <span class="s2">"https://leta.mullvad.net"</span>
<span class="k">return</span> <span class="n">headers</span></div>
<span class="k">def</span> <span class="nf">request</span><span class="p">(</span><span class="n">query</span><span class="p">:</span> <span class="nb">str</span><span class="p">,</span> <span class="n">params</span><span class="p">:</span> <span class="nb">dict</span><span class="p">):</span>
<span class="n">country</span> <span class="o">=</span> <span class="n">traits</span><span class="o">.</span><span class="n">get_region</span><span class="p">(</span><span class="n">params</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s1">'searxng_locale'</span><span class="p">,</span> <span class="s1">'all'</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>
<span class="n">result_engine</span> <span class="o">=</span> <span class="n">leta_engine</span>
<span class="k">if</span> <span class="n">leta_engine</span> <span class="ow">not</span> <span class="ow">in</span> <span class="n">available_leta_engines</span><span class="p">:</span>
<span class="n">result_engine</span> <span class="o">=</span> <span class="n">available_leta_engines</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span>
<span class="n">logger</span><span class="o">.</span><span class="n">warning</span><span class="p">(</span>
<span class="s1">'Configured engine "</span><span class="si">%s</span><span class="s1">" not one of the available engines </span><span class="si">%s</span><span class="s1">, defaulting to "</span><span class="si">%s</span><span class="s1">"'</span><span class="p">,</span>
<span class="n">leta_engine</span><span class="p">,</span>
<span class="n">available_leta_engines</span><span class="p">,</span>
<span class="n">result_engine</span><span class="p">,</span>
<span class="p">)</span>
<span class="n">params</span><span class="p">[</span><span class="s1">'url'</span><span class="p">]</span> <span class="o">=</span> <span class="n">search_url</span>
<span class="n">params</span><span class="p">[</span><span class="s1">'method'</span><span class="p">]</span> <span class="o">=</span> <span class="s1">'POST'</span>
<span class="n">params</span><span class="p">[</span><span class="s1">'data'</span><span class="p">]</span> <span class="o">=</span> <span class="p">{</span>
<span class="s2">"q"</span><span class="p">:</span> <span class="n">query</span><span class="p">,</span>
<span class="s2">"gl"</span><span class="p">:</span> <span class="n">country</span> <span class="k">if</span> <span class="n">country</span> <span class="ow">is</span> <span class="nb">str</span> <span class="k">else</span> <span class="s1">''</span><span class="p">,</span>
<span class="s1">'engine'</span><span class="p">:</span> <span class="n">result_engine</span><span class="p">,</span>
<span class="p">}</span>
<span class="c1"># pylint: disable=undefined-variable</span>
<span class="k">if</span> <span class="n">use_cache</span><span class="p">:</span>
<span class="n">params</span><span class="p">[</span><span class="s1">'data'</span><span class="p">][</span><span class="s1">'oc'</span><span class="p">]</span> <span class="o">=</span> <span class="s2">"on"</span>
<span class="c1"># pylint: enable=undefined-variable</span>
<span class="k">if</span> <span class="n">params</span><span class="p">[</span><span class="s1">'time_range'</span><span class="p">]</span> <span class="ow">in</span> <span class="n">time_range_dict</span><span class="p">:</span>
<span class="n">params</span><span class="p">[</span><span class="s1">'dateRestrict'</span><span class="p">]</span> <span class="o">=</span> <span class="n">time_range_dict</span><span class="p">[</span><span class="n">params</span><span class="p">[</span><span class="s1">'time_range'</span><span class="p">]]</span>
<span class="k">else</span><span class="p">:</span>
<span class="n">params</span><span class="p">[</span><span class="s1">'dateRestrict'</span><span class="p">]</span> <span class="o">=</span> <span class="s1">''</span>
<span class="k">if</span> <span class="n">params</span><span class="p">[</span><span class="s1">'pageno'</span><span class="p">]</span> <span class="o">></span> <span class="mi">1</span><span class="p">:</span>
<span class="c1"># Page 1 is n/a, Page 2 is 11, page 3 is 21, ...</span>
<span class="n">params</span><span class="p">[</span><span class="s1">'data'</span><span class="p">][</span><span class="s1">'start'</span><span class="p">]</span> <span class="o">=</span> <span class="s1">''</span><span class="o">.</span><span class="n">join</span><span class="p">([</span><span class="nb">str</span><span class="p">(</span><span class="n">params</span><span class="p">[</span><span class="s1">'pageno'</span><span class="p">]</span> <span class="o">-</span> <span class="mi">1</span><span class="p">),</span> <span class="s2">"1"</span><span class="p">])</span>
<span class="k">if</span> <span class="n">params</span><span class="p">[</span><span class="s1">'headers'</span><span class="p">]</span> <span class="ow">is</span> <span class="kc">None</span><span class="p">:</span>
<span class="n">params</span><span class="p">[</span><span class="s1">'headers'</span><span class="p">]</span> <span class="o">=</span> <span class="p">{}</span>
<span class="n">assign_headers</span><span class="p">(</span><span class="n">params</span><span class="p">[</span><span class="s1">'headers'</span><span class="p">])</span>
<span class="k">return</span> <span class="n">params</span>
<span class="k">def</span> <span class="nf">extract_result</span><span class="p">(</span><span class="n">dom_result</span><span class="p">:</span> <span class="nb">list</span><span class="p">[</span><span class="n">html</span><span class="o">.</span><span class="n">HtmlElement</span><span class="p">]):</span>
<span class="c1"># Infoboxes sometimes appear in the beginning and will have a length of 0</span>
<span class="k">if</span> <span class="nb">len</span><span class="p">(</span><span class="n">dom_result</span><span class="p">)</span> <span class="o">==</span> <span class="mi">3</span><span class="p">:</span>
<span class="p">[</span><span class="n">a_elem</span><span class="p">,</span> <span class="n">h3_elem</span><span class="p">,</span> <span class="n">p_elem</span><span class="p">]</span> <span class="o">=</span> <span class="n">dom_result</span>
<span class="k">elif</span> <span class="nb">len</span><span class="p">(</span><span class="n">dom_result</span><span class="p">)</span> <span class="o">==</span> <span class="mi">4</span><span class="p">:</span>
<span class="p">[</span><span class="n">_</span><span class="p">,</span> <span class="n">a_elem</span><span class="p">,</span> <span class="n">h3_elem</span><span class="p">,</span> <span class="n">p_elem</span><span class="p">]</span> <span class="o">=</span> <span class="n">dom_result</span>
<span class="k">else</span><span class="p">:</span>
<span class="k">return</span> <span class="kc">None</span>
<span class="k">return</span> <span class="p">{</span>
<span class="s1">'url'</span><span class="p">:</span> <span class="n">extract_text</span><span class="p">(</span><span class="n">a_elem</span><span class="o">.</span><span class="n">text</span><span class="p">),</span>
<span class="s1">'title'</span><span class="p">:</span> <span class="n">extract_text</span><span class="p">(</span><span class="n">h3_elem</span><span class="p">),</span>
<span class="s1">'content'</span><span class="p">:</span> <span class="n">extract_text</span><span class="p">(</span><span class="n">p_elem</span><span class="p">),</span>
<span class="p">}</span>
<span class="k">def</span> <span class="nf">extract_results</span><span class="p">(</span><span class="n">search_results</span><span class="p">:</span> <span class="n">html</span><span class="o">.</span><span class="n">HtmlElement</span><span class="p">):</span>
<span class="k">for</span> <span class="n">search_result</span> <span class="ow">in</span> <span class="n">search_results</span><span class="p">:</span>
<span class="n">dom_result</span> <span class="o">=</span> <span class="n">eval_xpath_list</span><span class="p">(</span><span class="n">search_result</span><span class="p">,</span> <span class="s1">'div/div/*'</span><span class="p">)</span>
<span class="n">result</span> <span class="o">=</span> <span class="n">extract_result</span><span class="p">(</span><span class="n">dom_result</span><span class="p">)</span>
<span class="k">if</span> <span class="n">result</span> <span class="ow">is</span> <span class="ow">not</span> <span class="kc">None</span><span class="p">:</span>
<span class="k">yield</span> <span class="n">result</span>
<div class="viewcode-block" id="response">
<a class="viewcode-back" href="../../../dev/engines/online/mullvad_leta.html#searx.engines.mullvad_leta.response">[docs]</a>
<span class="k">def</span> <span class="nf">response</span><span class="p">(</span><span class="n">resp</span><span class="p">:</span> <span class="n">Response</span><span class="p">):</span>
<span class="w"> </span><span class="sd">"""Checks if connected to Mullvad VPN, then extracts the search results from</span>
<span class="sd"> the DOM resp: requests response object"""</span>
<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="k">if</span> <span class="ow">not</span> <span class="n">is_vpn_connected</span><span class="p">(</span><span class="n">dom</span><span class="p">):</span>
<span class="k">raise</span> <span class="n">SearxEngineResponseException</span><span class="p">(</span><span class="s1">'Not connected to Mullvad VPN'</span><span class="p">)</span>
<span class="n">search_results</span> <span class="o">=</span> <span class="n">eval_xpath</span><span class="p">(</span><span class="n">dom</span><span class="o">.</span><span class="n">body</span><span class="p">,</span> <span class="s1">'//main/div[2]/div'</span><span class="p">)</span>
<span class="k">return</span> <span class="nb">list</span><span class="p">(</span><span class="n">extract_results</span><span class="p">(</span><span class="n">search_results</span><span class="p">))</span></div>
<div class="viewcode-block" id="fetch_traits">
<a class="viewcode-back" href="../../../dev/engines/online/mullvad_leta.html#searx.engines.mullvad_leta.fetch_traits">[docs]</a>
<span class="k">def</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>
<span class="w"> </span><span class="sd">"""Fetch languages and regions from Mullvad-Leta</span>
<span class="sd"> .. warning::</span>
<span class="sd"> Fetching the engine traits also requires a Mullvad VPN connection. If</span>
<span class="sd"> not connected, then an error message will print and no traits will be</span>
<span class="sd"> updated.</span>
<span class="sd"> """</span>
<span class="c1"># pylint: disable=import-outside-toplevel</span>
<span class="c1"># see https://github.com/searxng/searxng/issues/762</span>
<span class="kn">from</span> <span class="nn">searx.network</span> <span class="kn">import</span> <span class="n">post</span> <span class="k">as</span> <span class="n">http_post</span>
<span class="c1"># pylint: enable=import-outside-toplevel</span>
<span class="n">resp</span> <span class="o">=</span> <span class="n">http_post</span><span class="p">(</span><span class="n">search_url</span><span class="p">,</span> <span class="n">headers</span><span class="o">=</span><span class="n">assign_headers</span><span class="p">({}))</span>
<span class="k">if</span> <span class="ow">not</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">resp</span><span class="p">,</span> <span class="n">Response</span><span class="p">):</span>
<span class="nb">print</span><span class="p">(</span><span class="s2">"ERROR: failed to get response from mullvad-leta. Are you connected to the VPN?"</span><span class="p">)</span>
<span class="k">return</span>
<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="nb">print</span><span class="p">(</span><span class="s2">"ERROR: response from mullvad-leta is not OK. Are you connected to the VPN?"</span><span class="p">)</span>
<span class="k">return</span>
<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="k">if</span> <span class="ow">not</span> <span class="n">is_vpn_connected</span><span class="p">(</span><span class="n">dom</span><span class="p">):</span>
<span class="nb">print</span><span class="p">(</span><span class="s1">'ERROR: Not connected to Mullvad VPN'</span><span class="p">)</span>
<span class="k">return</span>
<span class="c1"># supported region codes</span>
<span class="n">options</span> <span class="o">=</span> <span class="n">eval_xpath_list</span><span class="p">(</span><span class="n">dom</span><span class="o">.</span><span class="n">body</span><span class="p">,</span> <span class="s1">'//main/div/form/div[2]/div/select[1]/option'</span><span class="p">)</span>
<span class="k">if</span> <span class="n">options</span> <span class="ow">is</span> <span class="kc">None</span> <span class="ow">or</span> <span class="nb">len</span><span class="p">(</span><span class="n">options</span><span class="p">)</span> <span class="o"><=</span> <span class="mi">0</span><span class="p">:</span>
<span class="nb">print</span><span class="p">(</span><span class="s1">'ERROR: could not find any results. Are you connected to the VPN?'</span><span class="p">)</span>
<span class="k">for</span> <span class="n">x</span> <span class="ow">in</span> <span class="n">options</span><span class="p">:</span>
<span class="n">eng_country</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">"value"</span><span class="p">)</span>
<span class="n">sxng_locales</span> <span class="o">=</span> <span class="n">get_official_locales</span><span class="p">(</span><span class="n">eng_country</span><span class="p">,</span> <span class="n">engine_traits</span><span class="o">.</span><span class="n">languages</span><span class="o">.</span><span class="n">keys</span><span class="p">(),</span> <span class="n">regional</span><span class="o">=</span><span class="kc">True</span><span class="p">)</span>
<span class="k">if</span> <span class="ow">not</span> <span class="n">sxng_locales</span><span class="p">:</span>
<span class="nb">print</span><span class="p">(</span>
<span class="s2">"ERROR: can't map from Mullvad-Leta country </span><span class="si">%s</span><span class="s2"> (</span><span class="si">%s</span><span class="s2">) to a babel region."</span>
<span class="o">%</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="s1">'data-name'</span><span class="p">),</span> <span class="n">eng_country</span><span class="p">)</span>
<span class="p">)</span>
<span class="k">continue</span>
<span class="k">for</span> <span class="n">sxng_locale</span> <span class="ow">in</span> <span class="n">sxng_locales</span><span class="p">:</span>
<span class="n">engine_traits</span><span class="o">.</span><span class="n">regions</span><span class="p">[</span><span class="n">region_tag</span><span class="p">(</span><span class="n">sxng_locale</span><span class="p">)]</span> <span class="o">=</span> <span class="n">eng_country</span></div>
</pre></div>
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