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diff --git a/src/searx.redislib.html b/src/searx.redislib.html new file mode 100644 index 000000000..0bccc8062 --- /dev/null +++ b/src/searx.redislib.html @@ -0,0 +1,294 @@ +<!DOCTYPE html> + +<html lang="en" data-content_root="../"> + <head> + <meta charset="utf-8" /> + <meta name="viewport" content="width=device-width, initial-scale=1.0" /> + <meta name="viewport" content="width=device-width, initial-scale=1"> + <title>Redis Library — SearXNG Documentation (2025.1.6+6dab7fe78)</title> + <link rel="stylesheet" type="text/css" href="../_static/pygments.css?v=4f649999" /> + <link rel="stylesheet" type="text/css" href="../_static/searxng.css?v=52e4ff28" /> + <script src="../_static/documentation_options.js?v=ef740023"></script> + <script src="../_static/doctools.js?v=9a2dae69"></script> + <script src="../_static/sphinx_highlight.js?v=dc90522c"></script> + <script data-project="searxng" data-version="2025.1.6+6dab7fe78" src="../_static/describe_version.js?v=fa7f30d0"></script> + <link 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class="nav-item nav-item-this"><a href="">Redis Library</a></li> + </ul> + </div> + + <div class="document"> + <div class="documentwrapper"> + <div class="bodywrapper"> + <div class="body" role="main"> + + <section id="module-searx.redislib"> +<span id="redis-library"></span><span id="searx-redis"></span><h1>Redis Library<a class="headerlink" href="#module-searx.redislib" title="Link to this heading">¶</a></h1> +<p>A collection of convenient functions and redis/lua scripts.</p> +<p>This code was partial inspired by the <a class="reference external" href="https://redis.com/blog/bullet-proofing-lua-scripts-in-redispy/">Bullet-Proofing Lua Scripts in RedisPy</a> +article.</p> +<dl class="py function"> +<dt class="sig sig-object py" id="searx.redislib.drop_counter"> +<span class="sig-prename descclassname"><span class="pre">searx.redislib.</span></span><span class="sig-name descname"><span class="pre">drop_counter</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">client</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">name</span></span></em><span class="sig-paren">)</span><a class="reference internal" href="../_modules/searx/redislib.html#drop_counter"><span class="viewcode-link"><span class="pre">[source]</span></span></a><a class="headerlink" href="#searx.redislib.drop_counter" title="Link to this definition">¶</a></dt> +<dd><p>Drop counter with redis key <code class="docutils literal notranslate"><span class="pre">SearXNG_counter_<name></span></code></p> +<p>The replacement <code class="docutils literal notranslate"><span class="pre"><name></span></code> is a <em>secret hash</em> of the value from argument +<code class="docutils literal notranslate"><span class="pre">name</span></code> (see <a class="reference internal" href="#searx.redislib.incr_counter" title="searx.redislib.incr_counter"><code class="xref py py-func docutils literal notranslate"><span class="pre">incr_counter()</span></code></a> and <a class="reference internal" href="#searx.redislib.incr_sliding_window" title="searx.redislib.incr_sliding_window"><code class="xref py py-func docutils literal notranslate"><span class="pre">incr_sliding_window()</span></code></a>).</p> +</dd></dl> + +<dl class="py function"> +<dt class="sig sig-object py" id="searx.redislib.incr_counter"> +<span class="sig-prename descclassname"><span class="pre">searx.redislib.</span></span><span class="sig-name descname"><span class="pre">incr_counter</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">client</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">name</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#str" title="(in Python v3.13)"><span class="pre">str</span></a></span></em>, <em class="sig-param"><span class="n"><span class="pre">limit</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><a class="reference external" href="https://docs.python.org/3/library/functions.html#int" title="(in Python v3.13)"><span class="pre">int</span></a></span><span class="w"> </span><span class="o"><span class="pre">=</span></span><span class="w"> </span><span class="default_value"><span class="pre">0</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">expire</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><a class="reference external" href="https://docs.python.org/3/library/functions.html#int" title="(in Python v3.13)"><span class="pre">int</span></a></span><span class="w"> </span><span class="o"><span class="pre">=</span></span><span class="w"> </span><span class="default_value"><span class="pre">0</span></span></em><span class="sig-paren">)</span><a class="reference internal" href="../_modules/searx/redislib.html#incr_counter"><span class="viewcode-link"><span class="pre">[source]</span></span></a><a class="headerlink" href="#searx.redislib.incr_counter" title="Link to this definition">¶</a></dt> +<dd><p>Increment a counter and return the new value.</p> +<p>If counter with redis key <code class="docutils literal notranslate"><span class="pre">SearXNG_counter_<name></span></code> does not exists it is +created with initial value 1 returned. The replacement <code class="docutils literal notranslate"><span class="pre"><name></span></code> is a +<em>secret hash</em> of the value from argument <code class="docutils literal notranslate"><span class="pre">name</span></code> (see +<a class="reference internal" href="#searx.redislib.secret_hash" title="searx.redislib.secret_hash"><code class="xref py py-func docutils literal notranslate"><span class="pre">secret_hash()</span></code></a>).</p> +<p>The implementation of the redis counter is the lua script from string +<code class="xref py py-obj docutils literal notranslate"><span class="pre">INCR_COUNTER</span></code>.</p> +<dl class="field-list simple"> +<dt class="field-odd">Parameters<span class="colon">:</span></dt> +<dd class="field-odd"><ul class="simple"> +<li><p><strong>name</strong> (<a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#str" title="(in Python v3.13)"><em>str</em></a>) – name of the counter</p></li> +<li><p><strong>expire</strong> (int / see <a class="reference external" href="https://redis.io/commands/expire/">EXPIRE</a>) – live-time of the counter in seconds (default <code class="docutils literal notranslate"><span class="pre">None</span></code> means +infinite).</p></li> +<li><p><strong>limit</strong> (int / limit is 2^64 see <a class="reference external" href="https://redis.io/commands/incr/">INCR</a>) – limit where the counter stops to increment (default <code class="docutils literal notranslate"><span class="pre">None</span></code>)</p></li> +</ul> +</dd> +<dt class="field-even">Returns<span class="colon">:</span></dt> +<dd class="field-even"><p>value of the incremented counter</p> +</dd> +</dl> +<p>A simple demo of a counter with expire time and limit:</p> +<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="gp">>>> </span><span class="k">for</span> <span class="n">i</span> <span class="ow">in</span> <span class="nb">range</span><span class="p">(</span><span class="mi">6</span><span class="p">):</span> +<span class="gp">... </span> <span class="n">i</span><span class="p">,</span> <span class="n">incr_counter</span><span class="p">(</span><span class="n">client</span><span class="p">,</span> <span class="s2">"foo"</span><span class="p">,</span> <span class="mi">3</span><span class="p">,</span> <span class="mi">5</span><span class="p">)</span> <span class="c1"># max 3, duration 5 sec</span> +<span class="gp">... </span> <span class="n">time</span><span class="o">.</span><span class="n">sleep</span><span class="p">(</span><span class="mi">1</span><span class="p">)</span> <span class="c1"># from the third call on max has been reached</span> +<span class="gp">...</span> +<span class="go">(0, 1)</span> +<span class="go">(1, 2)</span> +<span class="go">(2, 3)</span> +<span class="go">(3, 3)</span> +<span class="go">(4, 3)</span> +<span class="go">(5, 1)</span> +</pre></div> +</div> +</dd></dl> + +<dl class="py function"> +<dt class="sig sig-object py" id="searx.redislib.incr_sliding_window"> +<span class="sig-prename descclassname"><span class="pre">searx.redislib.</span></span><span class="sig-name descname"><span class="pre">incr_sliding_window</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">client</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">name</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#str" title="(in Python v3.13)"><span class="pre">str</span></a></span></em>, <em class="sig-param"><span class="n"><span class="pre">duration</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><a class="reference external" href="https://docs.python.org/3/library/functions.html#int" title="(in Python v3.13)"><span class="pre">int</span></a></span></em><span class="sig-paren">)</span><a class="reference internal" href="../_modules/searx/redislib.html#incr_sliding_window"><span class="viewcode-link"><span class="pre">[source]</span></span></a><a class="headerlink" href="#searx.redislib.incr_sliding_window" title="Link to this definition">¶</a></dt> +<dd><p>Increment a sliding-window counter and return the new value.</p> +<p>If counter with redis key <code class="docutils literal notranslate"><span class="pre">SearXNG_counter_<name></span></code> does not exists it is +created with initial value 1 returned. The replacement <code class="docutils literal notranslate"><span class="pre"><name></span></code> is a +<em>secret hash</em> of the value from argument <code class="docutils literal notranslate"><span class="pre">name</span></code> (see +<a class="reference internal" href="#searx.redislib.secret_hash" title="searx.redislib.secret_hash"><code class="xref py py-func docutils literal notranslate"><span class="pre">secret_hash()</span></code></a>).</p> +<dl class="field-list simple"> +<dt class="field-odd">Parameters<span class="colon">:</span></dt> +<dd class="field-odd"><ul class="simple"> +<li><p><strong>name</strong> (<a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#str" title="(in Python v3.13)"><em>str</em></a>) – name of the counter</p></li> +<li><p><strong>duration</strong> – live-time of the sliding window in seconds</p></li> +</ul> +</dd> +<dt class="field-even">Typeduration<span class="colon">:</span></dt> +<dd class="field-even"><p>int</p> +</dd> +<dt class="field-odd">Returns<span class="colon">:</span></dt> +<dd class="field-odd"><p>value of the incremented counter</p> +</dd> +</dl> +<p>The implementation of the redis counter is the lua script from string +<code class="xref py py-obj docutils literal notranslate"><span class="pre">INCR_SLIDING_WINDOW</span></code>. The lua script uses <a class="reference external" href="https://redis.com/ebook/part-1-getting-started/chapter-1-getting-to-know-redis/1-2-what-redis-data-structures-look-like/1-2-5-sorted-sets-in-redis/">sorted sets in Redis</a> +to implement a sliding window for the redis key <code class="docutils literal notranslate"><span class="pre">SearXNG_counter_<name></span></code> +(<a class="reference external" href="https://redis.io/commands/zadd/">ZADD</a>). The current <a class="reference external" href="https://redis.io/commands/time/">TIME</a> is used to score the items in the sorted set and +the time window is moved by removing items with a score lower current time +minus <em>duration</em> time (<a class="reference external" href="https://redis.io/commands/zremrangebyscore/">ZREMRANGEBYSCORE</a>).</p> +<p>The <a class="reference external" href="https://redis.io/commands/expire/">EXPIRE</a> time (the duration of the sliding window) is refreshed on each +call (increment) and if there is no call in this duration, the sorted +set expires from the redis DB.</p> +<p>The return value is the amount of items in the sorted set (<a class="reference external" href="https://redis.io/commands/zcount/">ZCOUNT</a>), what +means the number of calls in the sliding window.</p> +<p>A simple demo of the sliding window:</p> +<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="gp">>>> </span><span class="k">for</span> <span class="n">i</span> <span class="ow">in</span> <span class="nb">range</span><span class="p">(</span><span class="mi">5</span><span class="p">):</span> +<span class="gp">... </span> <span class="n">incr_sliding_window</span><span class="p">(</span><span class="n">client</span><span class="p">,</span> <span class="s2">"foo"</span><span class="p">,</span> <span class="mi">3</span><span class="p">)</span> <span class="c1"># duration 3 sec</span> +<span class="gp">... </span> <span class="n">time</span><span class="o">.</span><span class="n">sleep</span><span class="p">(</span><span class="mi">1</span><span class="p">)</span> <span class="c1"># from the third call (second) on the window is moved</span> +<span class="gp">...</span> +<span class="go">1</span> +<span class="go">2</span> +<span class="go">3</span> +<span class="go">3</span> +<span class="go">3</span> +<span class="gp">>>> </span><span class="n">time</span><span class="o">.</span><span class="n">sleep</span><span class="p">(</span><span class="mi">3</span><span class="p">)</span> <span class="c1"># wait until expire</span> +<span class="gp">>>> </span><span class="n">incr_sliding_window</span><span class="p">(</span><span class="n">client</span><span class="p">,</span> <span class="s2">"foo"</span><span class="p">,</span> <span class="mi">3</span><span class="p">)</span> +<span class="go">1</span> +</pre></div> +</div> +</dd></dl> + +<dl class="py function"> +<dt class="sig sig-object py" id="searx.redislib.lua_script_storage"> +<span class="sig-prename descclassname"><span class="pre">searx.redislib.</span></span><span class="sig-name descname"><span class="pre">lua_script_storage</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">client</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">script</span></span></em><span class="sig-paren">)</span><a class="reference internal" href="../_modules/searx/redislib.html#lua_script_storage"><span class="viewcode-link"><span class="pre">[source]</span></span></a><a class="headerlink" href="#searx.redislib.lua_script_storage" title="Link to this definition">¶</a></dt> +<dd><p>Returns a redis <a class="reference external" href="https://redis.readthedocs.io/en/stable/commands.html#redis.commands.core.CoreCommands.register_script" title="(in redis-py v99.99.99)"><code class="xref py py-obj docutils literal notranslate"><span class="pre">Script</span></code></a> instance.</p> +<p>Due to performance reason the <code class="docutils literal notranslate"><span class="pre">Script</span></code> object is instantiated only once +for a client (<code class="docutils literal notranslate"><span class="pre">client.register_script(..)</span></code>) and is cached in +<a class="reference internal" href="#searx.redislib.LUA_SCRIPT_STORAGE" title="searx.redislib.LUA_SCRIPT_STORAGE"><code class="xref py py-obj docutils literal notranslate"><span class="pre">LUA_SCRIPT_STORAGE</span></code></a>.</p> +</dd></dl> + +<dl class="py function"> +<dt class="sig sig-object py" id="searx.redislib.purge_by_prefix"> +<span class="sig-prename descclassname"><span class="pre">searx.redislib.</span></span><span class="sig-name descname"><span class="pre">purge_by_prefix</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">client</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">prefix</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#str" title="(in Python v3.13)"><span class="pre">str</span></a></span><span class="w"> </span><span class="o"><span class="pre">=</span></span><span class="w"> </span><span class="default_value"><span class="pre">'SearXNG_'</span></span></em><span class="sig-paren">)</span><a class="reference internal" href="../_modules/searx/redislib.html#purge_by_prefix"><span class="viewcode-link"><span class="pre">[source]</span></span></a><a class="headerlink" href="#searx.redislib.purge_by_prefix" title="Link to this definition">¶</a></dt> +<dd><p>Purge all keys with <code class="docutils literal notranslate"><span class="pre">prefix</span></code> from database.</p> +<p>Queries all keys in the database by the given prefix and set expire time to +zero. The default prefix will drop all keys which has been set by SearXNG +(drops SearXNG schema entirely from database).</p> +<p>The implementation is the lua script from string <code class="xref py py-obj docutils literal notranslate"><span class="pre">PURGE_BY_PREFIX</span></code>. +The lua script uses <a class="reference external" href="https://redis.io/commands/expire/">EXPIRE</a> instead of <a class="reference external" href="https://redis.io/commands/del/">DEL</a>: if there are a lot keys to +delete and/or their values are big, <cite>DEL</cite> could take more time and blocks +the command loop while <cite>EXPIRE</cite> turns back immediate.</p> +<dl class="field-list simple"> +<dt class="field-odd">Parameters<span class="colon">:</span></dt> +<dd class="field-odd"><p><strong>prefix</strong> – prefix of the key to delete (default: <code class="docutils literal notranslate"><span class="pre">SearXNG_</span></code>)</p> +</dd> +</dl> +</dd></dl> + +<dl class="py function"> +<dt class="sig sig-object py" id="searx.redislib.secret_hash"> +<span class="sig-prename descclassname"><span class="pre">searx.redislib.</span></span><span class="sig-name descname"><span class="pre">secret_hash</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">name</span></span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="n"><a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#str" title="(in Python v3.13)"><span class="pre">str</span></a></span></em><span class="sig-paren">)</span><a class="reference internal" href="../_modules/searx/redislib.html#secret_hash"><span class="viewcode-link"><span class="pre">[source]</span></span></a><a class="headerlink" href="#searx.redislib.secret_hash" title="Link to this definition">¶</a></dt> +<dd><p>Creates a hash of the <code class="docutils literal notranslate"><span class="pre">name</span></code>.</p> +<p>Combines argument <code class="docutils literal notranslate"><span class="pre">name</span></code> with the <code class="docutils literal notranslate"><span class="pre">secret_key</span></code> from <a class="reference internal" href="../admin/settings/settings_server.html#settings-server"><span class="std std-ref">server:</span></a>. This function can be used to get a more anonymized name of a Redis +KEY.</p> +<dl class="field-list simple"> +<dt class="field-odd">Parameters<span class="colon">:</span></dt> +<dd class="field-odd"><p><strong>name</strong> (<a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#str" title="(in Python v3.13)"><em>str</em></a>) – the name to create a secret hash for</p> +</dd> +</dl> +</dd></dl> + +<dl class="py data"> +<dt class="sig sig-object py" id="searx.redislib.LUA_SCRIPT_STORAGE"> +<span class="sig-prename descclassname"><span class="pre">searx.redislib.</span></span><span class="sig-name descname"><span class="pre">LUA_SCRIPT_STORAGE</span></span><em class="property"><span class="w"> </span><span class="p"><span class="pre">=</span></span><span class="w"> </span><span class="pre">{}</span></em><a class="headerlink" href="#searx.redislib.LUA_SCRIPT_STORAGE" title="Link to this definition">¶</a></dt> +<dd><p>A global dictionary to cache client’s <code class="docutils literal notranslate"><span class="pre">Script</span></code> objects, used by +<a class="reference internal" href="#searx.redislib.lua_script_storage" title="searx.redislib.lua_script_storage"><code class="xref py py-obj docutils literal notranslate"><span class="pre">lua_script_storage</span></code></a></p> +</dd></dl> + +</section> + + + <div class="clearer"></div> + </div> + </div> + </div> + <span id="sidebar-top"></span> + <div class="sphinxsidebar" role="navigation" aria-label="Main"> + <div class="sphinxsidebarwrapper"> + + + <p class="logo"><a href="../index.html"> + <img class="logo" src="../_static/searxng-wordmark.svg" alt="Logo of SearXNG"/> + </a></p> + + +<h3><a href="../index.html">Table of Contents</a></h3> +<ul class="current"> +<li class="toctree-l1"><a class="reference internal" href="../user/index.html">User information</a></li> +<li class="toctree-l1"><a class="reference internal" href="../own-instance.html">Why use a private instance?</a></li> +<li class="toctree-l1"><a class="reference internal" href="../admin/index.html">Administrator documentation</a></li> +<li class="toctree-l1"><a class="reference internal" href="../dev/index.html">Developer documentation</a></li> +<li class="toctree-l1"><a class="reference internal" href="../utils/index.html">DevOps tooling box</a></li> +<li class="toctree-l1 current"><a class="reference internal" href="index.html">Source-Code</a><ul class="current"> +<li class="toctree-l2"><a class="reference internal" href="searx.babel_extract.html">Custom message extractor (i18n)</a></li> +<li class="toctree-l2"><a class="reference internal" href="searx.botdetection.html">Bot Detection</a></li> +<li class="toctree-l2"><a class="reference internal" href="searx.exceptions.html">SearXNG Exceptions</a></li> +<li class="toctree-l2"><a class="reference internal" href="searx.favicons.html">Favicons (source)</a></li> +<li class="toctree-l2"><a class="reference internal" href="searx.infopage.html">Online <code class="docutils literal notranslate"><span class="pre">/info</span></code></a></li> +<li class="toctree-l2"><a class="reference internal" href="searx.locales.html">Locales</a></li> +<li class="toctree-l2"><a class="reference internal" href="searx.plugins.hostnames.html">Hostnames plugin</a></li> +<li class="toctree-l2"><a class="reference internal" href="searx.plugins.tor_check.html">Tor check plugin</a></li> +<li class="toctree-l2"><a class="reference internal" href="searx.plugins.unit_converter.html">Unit converter plugin</a></li> +<li class="toctree-l2"><a class="reference internal" href="searx.redisdb.html">Redis DB</a></li> +<li class="toctree-l2 current"><a class="current reference internal" href="#">Redis Library</a><ul> +<li class="toctree-l3"><a class="reference internal" href="#searx.redislib.drop_counter"><code class="docutils literal notranslate"><span class="pre">drop_counter()</span></code></a></li> +<li class="toctree-l3"><a class="reference internal" href="#searx.redislib.incr_counter"><code class="docutils literal notranslate"><span class="pre">incr_counter()</span></code></a></li> +<li class="toctree-l3"><a class="reference internal" href="#searx.redislib.incr_sliding_window"><code class="docutils literal notranslate"><span class="pre">incr_sliding_window()</span></code></a></li> +<li class="toctree-l3"><a class="reference internal" href="#searx.redislib.lua_script_storage"><code class="docutils literal notranslate"><span class="pre">lua_script_storage()</span></code></a></li> +<li class="toctree-l3"><a class="reference internal" href="#searx.redislib.purge_by_prefix"><code class="docutils literal notranslate"><span class="pre">purge_by_prefix()</span></code></a></li> +<li class="toctree-l3"><a class="reference internal" href="#searx.redislib.secret_hash"><code class="docutils literal notranslate"><span class="pre">secret_hash()</span></code></a></li> +<li class="toctree-l3"><a class="reference internal" href="#searx.redislib.LUA_SCRIPT_STORAGE"><code class="docutils literal notranslate"><span class="pre">LUA_SCRIPT_STORAGE</span></code></a></li> +</ul> +</li> +<li class="toctree-l2"><a class="reference internal" href="searx.search.html">Search</a></li> +<li class="toctree-l2"><a class="reference internal" href="searx.search.processors.html">Search processors</a></li> +<li class="toctree-l2"><a class="reference internal" href="searx.settings.html">Settings Loader</a></li> +<li class="toctree-l2"><a class="reference internal" href="searx.sqlitedb.html">SQLite DB</a></li> +<li class="toctree-l2"><a class="reference internal" href="searx.utils.html">Utility functions for the engines</a></li> +</ul> +</li> +</ul> + + <h3>Project Links</h3> + <ul> + <li><a href="https://github.com/searxng/searxng/tree/master">Source</a> + + <li><a href="https://github.com/searxng/searxng/wiki">Wiki</a> + + <li><a href="https://searx.space">Public instances</a> + + <li><a href="https://github.com/searxng/searxng/issues">Issue Tracker</a> + </ul><h3>Navigation</h3> +<ul> + <li><a href="../index.html">Overview</a> + <ul> + <li><a href="index.html">Source-Code</a> + <ul> + <li>Previous: <a href="searx.redisdb.html" title="previous chapter">Redis DB</a> + <li>Next: <a href="searx.search.html" title="next chapter">Search</a></ul> + </li> + </ul> + </li> +</ul> +<search id="searchbox" style="display: none" role="search"> + <h3 id="searchlabel">Quick search</h3> + <div class="searchformwrapper"> + <form class="search" action="../search.html" method="get"> + <input type="text" name="q" aria-labelledby="searchlabel" autocomplete="off" autocorrect="off" autocapitalize="off" spellcheck="false"/> + <input type="submit" value="Go" /> + </form> + </div> +</search> +<script>document.getElementById('searchbox').style.display = "block"</script> + <div role="note" aria-label="source link"> + <h3>This Page</h3> + <ul class="this-page-menu"> + <li><a 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