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<h1>Source code for searx.botdetection.ip_lists</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">""".. _botdetection.ip_lists:</span>
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<span class="sd">Method ``ip_lists``</span>
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<span class="sd">-------------------</span>
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<span class="sd">The ``ip_lists`` method implements IP :py:obj:`block- <block_ip>` and</span>
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<span class="sd">:py:obj:`pass-lists <pass_ip>`.</span>
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<span class="sd">.. code:: toml</span>
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<span class="sd"> [botdetection.ip_lists]</span>
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<span class="sd"> pass_ip = [</span>
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<span class="sd"> '167.235.158.251', # IPv4 of check.searx.space</span>
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<span class="sd"> '192.168.0.0/16', # IPv4 private network</span>
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<span class="sd"> 'fe80::/10' # IPv6 linklocal</span>
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<span class="sd"> ]</span>
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<span class="sd"> block_ip = [</span>
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<span class="sd"> '93.184.216.34', # IPv4 of example.org</span>
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<span class="sd"> '257.1.1.1', # invalid IP --> will be ignored, logged in ERROR class</span>
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<span class="sd"> ]</span>
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<span class="sd">"""</span>
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<span class="c1"># pylint: disable=unused-argument</span>
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<span class="kn">from</span> <span class="nn">__future__</span> <span class="kn">import</span> <span class="n">annotations</span>
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<span class="kn">from</span> <span class="nn">typing</span> <span class="kn">import</span> <span class="n">Tuple</span>
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<span class="kn">from</span> <span class="nn">ipaddress</span> <span class="kn">import</span> <span class="p">(</span>
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<span class="n">ip_network</span><span class="p">,</span>
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<span class="n">IPv4Address</span><span class="p">,</span>
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<span class="n">IPv6Address</span><span class="p">,</span>
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<span class="p">)</span>
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<span class="kn">from</span> <span class="nn">.</span> <span class="kn">import</span> <span class="n">config</span>
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<span class="kn">from</span> <span class="nn">._helpers</span> <span class="kn">import</span> <span class="n">logger</span>
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<span class="n">logger</span> <span class="o">=</span> <span class="n">logger</span><span class="o">.</span><span class="n">getChild</span><span class="p">(</span><span class="s1">'ip_limit'</span><span class="p">)</span>
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<span class="n">SEARXNG_ORG</span> <span class="o">=</span> <span class="p">[</span>
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<span class="c1"># https://github.com/searxng/searxng/pull/2484#issuecomment-1576639195</span>
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<span class="s1">'167.235.158.251'</span><span class="p">,</span> <span class="c1"># IPv4 check.searx.space</span>
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<span class="s1">'2a01:04f8:1c1c:8fc2::/64'</span><span class="p">,</span> <span class="c1"># IPv6 check.searx.space</span>
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<span class="p">]</span>
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<span class="sd">"""Passlist of IPs from the SearXNG organization, e.g. `check.searx.space`."""</span>
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<div class="viewcode-block" id="pass_ip">
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<a class="viewcode-back" href="../../../src/searx.botdetection.html#searx.botdetection.ip_lists.pass_ip">[docs]</a>
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<span class="k">def</span> <span class="nf">pass_ip</span><span class="p">(</span><span class="n">real_ip</span><span class="p">:</span> <span class="n">IPv4Address</span> <span class="o">|</span> <span class="n">IPv6Address</span><span class="p">,</span> <span class="n">cfg</span><span class="p">:</span> <span class="n">config</span><span class="o">.</span><span class="n">Config</span><span class="p">)</span> <span class="o">-></span> <span class="n">Tuple</span><span class="p">[</span><span class="nb">bool</span><span class="p">,</span> <span class="nb">str</span><span class="p">]:</span>
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<span class="w"> </span><span class="sd">"""Checks if the IP on the subnet is in one of the members of the</span>
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<span class="sd"> ``botdetection.ip_lists.pass_ip`` list.</span>
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<span class="sd"> """</span>
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<span class="k">if</span> <span class="n">cfg</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s1">'botdetection.ip_lists.pass_searxng_org'</span><span class="p">,</span> <span class="n">default</span><span class="o">=</span><span class="kc">True</span><span class="p">):</span>
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<span class="k">for</span> <span class="n">net</span> <span class="ow">in</span> <span class="n">SEARXNG_ORG</span><span class="p">:</span>
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<span class="n">net</span> <span class="o">=</span> <span class="n">ip_network</span><span class="p">(</span><span class="n">net</span><span class="p">,</span> <span class="n">strict</span><span class="o">=</span><span class="kc">False</span><span class="p">)</span>
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<span class="k">if</span> <span class="n">real_ip</span><span class="o">.</span><span class="n">version</span> <span class="o">==</span> <span class="n">net</span><span class="o">.</span><span class="n">version</span> <span class="ow">and</span> <span class="n">real_ip</span> <span class="ow">in</span> <span class="n">net</span><span class="p">:</span>
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<span class="k">return</span> <span class="kc">True</span><span class="p">,</span> <span class="sa">f</span><span class="s2">"IP matches </span><span class="si">{</span><span class="n">net</span><span class="o">.</span><span class="n">compressed</span><span class="si">}</span><span class="s2"> in SEARXNG_ORG list."</span>
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<span class="k">return</span> <span class="n">ip_is_subnet_of_member_in_list</span><span class="p">(</span><span class="n">real_ip</span><span class="p">,</span> <span class="s1">'botdetection.ip_lists.pass_ip'</span><span class="p">,</span> <span class="n">cfg</span><span class="p">)</span></div>
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<div class="viewcode-block" id="block_ip">
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<a class="viewcode-back" href="../../../src/searx.botdetection.html#searx.botdetection.ip_lists.block_ip">[docs]</a>
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<span class="k">def</span> <span class="nf">block_ip</span><span class="p">(</span><span class="n">real_ip</span><span class="p">:</span> <span class="n">IPv4Address</span> <span class="o">|</span> <span class="n">IPv6Address</span><span class="p">,</span> <span class="n">cfg</span><span class="p">:</span> <span class="n">config</span><span class="o">.</span><span class="n">Config</span><span class="p">)</span> <span class="o">-></span> <span class="n">Tuple</span><span class="p">[</span><span class="nb">bool</span><span class="p">,</span> <span class="nb">str</span><span class="p">]:</span>
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<span class="w"> </span><span class="sd">"""Checks if the IP on the subnet is in one of the members of the</span>
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<span class="sd"> ``botdetection.ip_lists.block_ip`` list.</span>
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<span class="sd"> """</span>
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<span class="n">block</span><span class="p">,</span> <span class="n">msg</span> <span class="o">=</span> <span class="n">ip_is_subnet_of_member_in_list</span><span class="p">(</span><span class="n">real_ip</span><span class="p">,</span> <span class="s1">'botdetection.ip_lists.block_ip'</span><span class="p">,</span> <span class="n">cfg</span><span class="p">)</span>
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<span class="k">if</span> <span class="n">block</span><span class="p">:</span>
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<span class="n">msg</span> <span class="o">+=</span> <span class="s2">" To remove IP from list, please contact the maintainer of the service."</span>
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<span class="k">return</span> <span class="n">block</span><span class="p">,</span> <span class="n">msg</span></div>
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<span class="k">def</span> <span class="nf">ip_is_subnet_of_member_in_list</span><span class="p">(</span>
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<span class="n">real_ip</span><span class="p">:</span> <span class="n">IPv4Address</span> <span class="o">|</span> <span class="n">IPv6Address</span><span class="p">,</span> <span class="n">list_name</span><span class="p">:</span> <span class="nb">str</span><span class="p">,</span> <span class="n">cfg</span><span class="p">:</span> <span class="n">config</span><span class="o">.</span><span class="n">Config</span>
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<span class="p">)</span> <span class="o">-></span> <span class="n">Tuple</span><span class="p">[</span><span class="nb">bool</span><span class="p">,</span> <span class="nb">str</span><span class="p">]:</span>
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<span class="k">for</span> <span class="n">net</span> <span class="ow">in</span> <span class="n">cfg</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">list_name</span><span class="p">,</span> <span class="n">default</span><span class="o">=</span><span class="p">[]):</span>
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<span class="k">try</span><span class="p">:</span>
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<span class="n">net</span> <span class="o">=</span> <span class="n">ip_network</span><span class="p">(</span><span class="n">net</span><span class="p">,</span> <span class="n">strict</span><span class="o">=</span><span class="kc">False</span><span class="p">)</span>
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<span class="k">except</span> <span class="ne">ValueError</span><span class="p">:</span>
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<span class="n">logger</span><span class="o">.</span><span class="n">error</span><span class="p">(</span><span class="s2">"invalid IP </span><span class="si">%s</span><span class="s2"> in </span><span class="si">%s</span><span class="s2">"</span><span class="p">,</span> <span class="n">net</span><span class="p">,</span> <span class="n">list_name</span><span class="p">)</span>
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<span class="k">continue</span>
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<span class="k">if</span> <span class="n">real_ip</span><span class="o">.</span><span class="n">version</span> <span class="o">==</span> <span class="n">net</span><span class="o">.</span><span class="n">version</span> <span class="ow">and</span> <span class="n">real_ip</span> <span class="ow">in</span> <span class="n">net</span><span class="p">:</span>
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<span class="k">return</span> <span class="kc">True</span><span class="p">,</span> <span class="sa">f</span><span class="s2">"IP matches </span><span class="si">{</span><span class="n">net</span><span class="o">.</span><span class="n">compressed</span><span class="si">}</span><span class="s2"> in </span><span class="si">{</span><span class="n">list_name</span><span class="si">}</span><span class="s2">."</span>
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<span class="k">return</span> <span class="kc">False</span><span class="p">,</span> <span class="sa">f</span><span class="s2">"IP is not a member of an item in the f</span><span class="si">{</span><span class="n">list_name</span><span class="si">}</span><span class="s2"> list"</span>
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</pre></div>
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