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185 lines
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<?xml version="1.0" encoding="UTF-8"?>
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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
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<meta content="text/html; charset=UTF-8" http-equiv="Content-Type" />
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This file is generated from xml source: DO NOT EDIT
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-->
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<title>mod_example_hooks - Apache HTTP Server Version 2.5</title>
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<link href="../style/css/manual.css" rel="stylesheet" media="all" type="text/css" title="Main stylesheet" />
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<link href="../style/css/manual-loose-100pc.css" rel="alternate stylesheet" media="all" type="text/css" title="No Sidebar - Default font size" />
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<script src="../style/scripts/prettify.min.js" type="text/javascript">
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</script>
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<link href="../images/favicon.ico" rel="shortcut icon" /></head>
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<body>
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<div id="page-header">
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<p class="menu"><a href="../mod/">Modules</a> | <a href="../mod/quickreference.html">Directives</a> | <a href="http://wiki.apache.org/httpd/FAQ">FAQ</a> | <a href="../glossary.html">Glossary</a> | <a href="../sitemap.html">Sitemap</a></p>
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<p class="apache">Apache HTTP Server Version 2.5</p>
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<img alt="" src="../images/feather.png" /></div>
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<div class="up"><a href="./"><img title="<-" alt="<-" src="../images/left.gif" /></a></div>
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<div id="path">
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<a href="http://www.apache.org/">Apache</a> > <a href="http://httpd.apache.org/">HTTP Server</a> > <a href="http://httpd.apache.org/docs/">Documentation</a> > <a href="../">Version 2.5</a> > <a href="./">Modules</a></div>
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<div id="page-content">
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<div id="preamble"><h1>Apache Module mod_example_hooks</h1>
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<div class="toplang">
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<p><span>Available Languages: </span><a href="../en/mod/mod_example_hooks.html" title="English"> en </a> |
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<a href="../fr/mod/mod_example_hooks.html" hreflang="fr" rel="alternate" title="Français"> fr </a> |
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<a href="../ko/mod/mod_example_hooks.html" hreflang="ko" rel="alternate" title="Korean"> ko </a></p>
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</div>
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<table class="module"><tr><th><a href="module-dict.html#Description">Description:</a></th><td>Illustrates the Apache module API</td></tr>
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<tr><th><a href="module-dict.html#Status">Status:</a></th><td>Experimental</td></tr>
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<tr><th><a href="module-dict.html#ModuleIdentifier">Module Identifier:</a></th><td>example_hooks_module</td></tr>
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<tr><th><a href="module-dict.html#SourceFile">Source File:</a></th><td>mod_example_hooks.c</td></tr></table>
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<h3>Summary</h3>
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<p>The files in the <code>modules/examples</code> directory
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under the Apache distribution directory tree are provided as an
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example to those that wish to write modules that use the Apache
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API.</p>
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<p>The main file is <code>mod_example_hooks.c</code>, which
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illustrates all the different callback mechanisms and call
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syntaxes. By no means does an add-on module need to include
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routines for all of the callbacks - quite the contrary!</p>
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<p>The example module is an actual working module. If you link
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it into your server, enable the "example-hooks-handler" handler for a
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location, and then browse to that location, you will see a
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display of some of the tracing the example module did as the
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various callbacks were made.</p>
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</div>
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<div id="quickview"><h3>Topics</h3>
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<ul id="topics">
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<li><img alt="" src="../images/down.gif" /> <a href="#compiling">Compiling the example_hooks module</a></li>
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<li><img alt="" src="../images/down.gif" /> <a href="#using">Using the <code>mod_example_hooks</code> Module</a></li>
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</ul><h3 class="directives">Directives</h3>
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<ul id="toc">
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<li><img alt="" src="../images/down.gif" /> <a href="#example">Example</a></li>
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</ul>
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<h3>Bugfix checklist</h3><ul class="seealso"><li><a href="https://www.apache.org/dist/httpd/CHANGES_2.4">httpd changelog</a></li><li><a href="https://bz.apache.org/bugzilla/buglist.cgi?bug_status=__open__&list_id=144532&product=Apache%20httpd-2&query_format=specific&order=changeddate%20DESC%2Cpriority%2Cbug_severity&component=mod_example_hooks">Known issues</a></li><li><a href="https://bz.apache.org/bugzilla/enter_bug.cgi?product=Apache%20httpd-2&component=mod_example_hooks">Report a bug</a></li></ul><h3>See also</h3>
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<ul class="seealso">
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<li><a href="#comments_section">Comments</a></li></ul></div>
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<div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div>
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<div class="section">
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<h2><a name="compiling" id="compiling">Compiling the example_hooks module</a> <a title="Permanent link" href="#compiling" class="permalink">¶</a></h2>
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<p>To include the example_hooks module in your server, follow the
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steps below:</p>
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<ol>
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<li>
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Run <code class="program"><a href="../programs/configure.html">configure</a></code> with <code>--enable-example-hooks</code>
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option.</li>
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<li>Make the server (run "<code>make</code>").</li>
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</ol>
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<p>To add another module of your own:</p>
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<ol class="up-A">
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<li><code>cp modules/examples/mod_example_hooks.c
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modules/new_module/<em>mod_myexample.c</em></code></li>
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<li>Modify the file.</li>
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<li>Create <code>modules/new_module/config.m4</code>.
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<ol>
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<li>Add <code>APACHE_MODPATH_INIT(new_module)</code>.</li>
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<li>Copy APACHE_MODULE line with "example_hooks" from
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<code>modules/examples/config.m4</code>.</li>
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<li>Replace the first argument "example_hooks" with <em>myexample</em>.</li>
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<li>Replace the second argument with brief description of your module.
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It will be used in <code>configure --help</code>.</li>
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<li>If your module needs additional C compiler flags, linker flags or
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libraries, add them to CFLAGS, LDFLAGS and LIBS accordingly.
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See other <code>config.m4</code> files in modules directory for
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examples.</li>
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<li>Add <code>APACHE_MODPATH_FINISH</code>.</li>
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</ol>
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</li>
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<li>Create <code>module/new_module/Makefile.in</code>.
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If your module doesn't need special build instructions,
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all you need to have in that file is
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<code>include $(top_srcdir)/build/special.mk</code>.</li>
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<li>Run ./buildconf from the top-level directory.</li>
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<li>Build the server with --enable-myexample</li>
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</ol>
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</div><div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div>
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<div class="section">
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<h2><a name="using" id="using">Using the <code>mod_example_hooks</code> Module</a> <a title="Permanent link" href="#using" class="permalink">¶</a></h2>
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<p>To activate the example_hooks module, include a block similar to
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the following in your <code>httpd.conf</code> file:</p>
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<pre class="prettyprint lang-config"><Location "/example-hooks-info">
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SetHandler example-hooks-handler
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</Location></pre>
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<p>As an alternative, you can put the following into a <a href="core.html#accessfilename"><code>.htaccess</code></a> file
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and then request the file "test.example" from that location:</p>
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<pre class="prettyprint lang-config">AddHandler example-hooks-handler .example</pre>
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<p>After reloading/restarting your server, you should be able
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to browse to this location and see the brief display mentioned
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earlier.</p>
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</div>
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<div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div>
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<div class="directive-section"><h2><a name="Example" id="Example">Example</a> <a name="example" id="example">Directive</a> <a title="Permanent link" href="#example" class="permalink">¶</a></h2>
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<table class="directive">
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<tr><th><a href="directive-dict.html#Description">Description:</a></th><td>Demonstration directive to illustrate the Apache module
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API</td></tr>
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<tr><th><a href="directive-dict.html#Syntax">Syntax:</a></th><td><code>Example</code></td></tr>
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<tr><th><a href="directive-dict.html#Context">Context:</a></th><td>server config, virtual host, directory, .htaccess</td></tr>
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<tr><th><a href="directive-dict.html#Override">Override:</a></th><td>Options</td></tr>
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<tr><th><a href="directive-dict.html#Status">Status:</a></th><td>Experimental</td></tr>
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<tr><th><a href="directive-dict.html#Module">Module:</a></th><td>mod_example_hooks</td></tr>
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</table>
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<p>The <code class="directive">Example</code> directive just sets a demonstration
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flag which the example module's content handler displays. It
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takes no arguments. If you browse to an URL to which the
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example-hooks content-handler applies, you will get a display of the
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routines within the module and how and in what order they were
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called to service the document request. The effect of this
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directive one can observe under the point "<code>Example
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directive declared here: YES/NO</code>".</p>
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</div>
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</div>
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<div class="bottomlang">
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<p><span>Available Languages: </span><a href="../en/mod/mod_example_hooks.html" title="English"> en </a> |
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<a href="../fr/mod/mod_example_hooks.html" hreflang="fr" rel="alternate" title="Français"> fr </a> |
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<a href="../ko/mod/mod_example_hooks.html" hreflang="ko" rel="alternate" title="Korean"> ko </a></p>
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</div><div class="top"><a href="#page-header"><img src="../images/up.gif" alt="top" /></a></div><div class="section"><h2><a id="comments_section" name="comments_section">Comments</a></h2><div class="warning"><strong>Notice:</strong><br />This is not a Q&A section. Comments placed here should be pointed towards suggestions on improving the documentation or server, and may be removed by our moderators if they are either implemented or considered invalid/off-topic. Questions on how to manage the Apache HTTP Server should be directed at either our IRC channel, #httpd, on Libera.chat, or sent to our <a href="https://httpd.apache.org/lists.html">mailing lists</a>.</div>
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<p class="apache">Copyright 2023 The Apache Software Foundation.<br />Licensed under the <a href="http://www.apache.org/licenses/LICENSE-2.0">Apache License, Version 2.0</a>.</p>
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<p class="menu"><a href="../mod/">Modules</a> | <a href="../mod/quickreference.html">Directives</a> | <a href="http://wiki.apache.org/httpd/FAQ">FAQ</a> | <a href="../glossary.html">Glossary</a> | <a href="../sitemap.html">Sitemap</a></p></div><script type="text/javascript"><!--//--><![CDATA[//><!--
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