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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 06:33:50 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 06:33:50 +0000 |
| commit | fe39ffb8b90ae4e002ed73fe98617cd590abb467 (patch) | |
| tree | b80e5956907d8aeaaffe4e4f0c068c0e6157ce8b /docs/manual/mod/mod_macro.html.en | |
| parent | Initial commit. (diff) | |
| download | apache2-upstream/2.4.56.tar.xz apache2-upstream/2.4.56.zip | |
Adding upstream version 2.4.56.upstream/2.4.56
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'docs/manual/mod/mod_macro.html.en')
| -rw-r--r-- | docs/manual/mod/mod_macro.html.en | 303 |
1 files changed, 303 insertions, 0 deletions
diff --git a/docs/manual/mod/mod_macro.html.en b/docs/manual/mod/mod_macro.html.en new file mode 100644 index 0000000..faad01b --- /dev/null +++ b/docs/manual/mod/mod_macro.html.en @@ -0,0 +1,303 @@ +<?xml version="1.0" encoding="UTF-8"?> +<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> +<html xmlns="http://www.w3.org/1999/xhtml" lang="en" xml:lang="en"><head> +<meta content="text/html; charset=UTF-8" http-equiv="Content-Type" /> +<!-- + XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX + This file is generated from xml source: DO NOT EDIT + XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX + --> +<title>mod_macro - Apache HTTP Server Version 2.4</title> +<link href="../style/css/manual.css" rel="stylesheet" media="all" type="text/css" title="Main stylesheet" /> +<link href="../style/css/manual-loose-100pc.css" rel="alternate stylesheet" media="all" type="text/css" title="No Sidebar - Default font size" /> +<link href="../style/css/manual-print.css" rel="stylesheet" media="print" type="text/css" /><link rel="stylesheet" type="text/css" href="../style/css/prettify.css" /> +<script src="../style/scripts/prettify.min.js" type="text/javascript"> +</script> + +<link href="../images/favicon.ico" rel="shortcut icon" /></head> +<body> +<div id="page-header"> +<p class="menu"><a href="../mod/">Modules</a> | <a href="../mod/directives.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> +<p class="apache">Apache HTTP Server Version 2.4</p> +<img alt="" src="../images/feather.png" /></div> +<div class="up"><a href="./"><img title="<-" alt="<-" src="../images/left.gif" /></a></div> +<div id="path"> +<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 2.4</a> > <a href="./">Modules</a></div> +<div id="page-content"> +<div id="preamble"><h1>Apache Module mod_macro</h1> +<div class="toplang"> +<p><span>Available Languages: </span><a href="../en/mod/mod_macro.html" title="English"> en </a> | +<a href="../fr/mod/mod_macro.html" hreflang="fr" rel="alternate" title="Français"> fr </a></p> +</div> +<table class="module"><tr><th><a href="module-dict.html#Description">Description:</a></th><td>Provides macros within apache httpd runtime configuration files</td></tr> +<tr><th><a href="module-dict.html#Status">Status:</a></th><td>Base</td></tr> +<tr><th><a href="module-dict.html#ModuleIdentifier">Module Identifier:</a></th><td>macro_module</td></tr> +<tr><th><a href="module-dict.html#SourceFile">Source File:</a></th><td>mod_macro.c</td></tr> +<tr><th><a href="module-dict.html#Compatibility">Compatibility:</a></th><td>Available in httpd 2.4.5 and later</td></tr></table> +<h3>Summary</h3> + + + <p>Provides macros within Apache httpd runtime configuration files, + to ease the process of creating numerous similar configuration + blocks. When the server starts up, the macros are expanded using the + provided parameters, and the result is processed as along with the + rest of the configuration file.</p> + +</div> +<div id="quickview"><a href="https://www.apache.org/foundation/contributing.html" class="badge"><img src="https://www.apache.org/images/SupportApache-small.png" alt="Support Apache!" /></a><h3>Topics</h3> +<ul id="topics"> +<li><img alt="" src="../images/down.gif" /> <a href="#usage">Usage</a></li> +<li><img alt="" src="../images/down.gif" /> <a href="#tips">Tips</a></li> +<li><img alt="" src="../images/down.gif" /> <a href="#examples">Examples</a></li> +</ul><h3 class="directives">Directives</h3> +<ul id="toc"> +<li><img alt="" src="../images/down.gif" /> <a href="#macro"><Macro></a></li> +<li><img alt="" src="../images/down.gif" /> <a href="#undefmacro">UndefMacro</a></li> +<li><img alt="" src="../images/down.gif" /> <a href="#use">Use</a></li> +</ul> +<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_macro">Known issues</a></li><li><a href="https://bz.apache.org/bugzilla/enter_bug.cgi?product=Apache%20httpd-2&component=mod_macro">Report a bug</a></li></ul><h3>See also</h3> +<ul class="seealso"> +<li><a href="#comments_section">Comments</a></li></ul></div> +<div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div> +<div class="section"> +<h2><a name="usage" id="usage">Usage</a></h2> + +<p>Macros are defined using <code class="directive"><a href="#macro"><Macro></a></code> blocks, which contain the portion of +your configuration that needs to be repeated, complete with variables +for those parts that will need to be substituted.</p> + +<p>For example, you might use a macro to define a <code class="directive"><a href="../mod/core.html#virtualhost"><VirtualHost></a></code> block, in order to define +multiple similar virtual hosts:</p> + +<pre class="prettyprint lang-config"><Macro VHost $name $domain> +<VirtualHost *:80> + ServerName $domain + ServerAlias www.$domain + + DocumentRoot "/var/www/vhosts/$name" + ErrorLog "/var/log/httpd/$name.error_log" + CustomLog "/var/log/httpd/$name.access_log" combined +</VirtualHost> +</Macro></pre> + + +<p>Macro names are case-insensitive, like httpd configuration +directives. However, variable names are case sensitive.</p> + +<p>You would then invoke this macro several times to create virtual +hosts:</p> + +<pre class="prettyprint lang-config">Use VHost example example.com +Use VHost myhost hostname.org +Use VHost apache apache.org + +UndefMacro VHost</pre> + + +<p>At server startup time, each of these <code class="directive"><a href="#use">Use</a></code> +invocations would be expanded into a full virtualhost, as +described by the <code class="directive"><a href="#macro"><Macro></a></code> +definition.</p> + +<p>The <code class="directive"><a href="#undefmacro">UndefMacro</a></code> directive is +used so that later macros using the same variable names don't result in +conflicting definitions.</p> + +<p>A more elaborate version of this example may be seen below in the +Examples section.</p> + +</div><div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div> +<div class="section"> +<h2><a name="tips" id="tips">Tips</a></h2> + +<p>Parameter names should begin with a sigil such as <code>$</code>, +<code>%</code>, or <code>@</code>, so that they are clearly +identifiable, and also in order to help deal with interactions with +other directives, such as the core <code class="directive"><a href="../mod/core.html#define">Define</a></code> directive. Failure to do so will +result in a warning. Nevertheless, you are encouraged to have a good +knowledge of your entire server configuration in order to avoid reusing +the same variables in different scopes, which can cause confusion.</p> + +<p>Parameters prefixed with either <code>$</code> or <code>%</code> are +not escaped. Parameters prefixes with <code>@</code> are escaped in +quotes.</p> + +<p>Avoid using a parameter which contains another parameter as a prefix, +(For example, <code>$win</code> and <code>$winter</code>) as this may +cause confusion at expression evaluation time. In the event of such +confusion, the longest possible parameter name is used.</p> + +<p>If you want to use a value within another string, it is useful to +surround the parameter in braces, to avoid confusion:</p> + +<pre class="prettyprint lang-config"><Macro DocRoot ${docroot}> + DocumentRoot "/var/www/${docroot}/htdocs" +</Macro></pre> + + +</div><div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div> +<div class="section"> +<h2><a name="examples" id="examples">Examples</a></h2> + + +<h3>Virtual Host Definition</h3> + + +<p>A common usage of <code class="module"><a href="../mod/mod_macro.html">mod_macro</a></code> is for the creation of +dynamically-generated virtual hosts.</p> + +<pre class="prettyprint lang-config">## Define a VHost Macro for repetitive configurations + +<Macro VHost $host $port $dir> + Listen $port + <VirtualHost *:$port> + + ServerName $host + DocumentRoot "$dir" + + # Public document root + <Directory "$dir"> + Require all granted + </Directory> + + # limit access to intranet subdir. + <Directory "$dir/intranet"> + Require ip 10.0.0.0/8 + </Directory> + </VirtualHost> +</Macro> + +## Use of VHost with different arguments. + +Use VHost www.apache.org 80 /vhosts/apache/htdocs +Use VHost example.org 8080 /vhosts/example/htdocs +Use VHost www.example.fr 1234 /vhosts/example.fr/htdocs</pre> + + + +<h3>Removal of a macro definition</h3> + + +<p>It's recommended that you undefine a macro once you've used it. This +avoids confusion in a complex configuration file where there may be +conflicts in variable names.</p> + +<pre class="prettyprint lang-config"><Macro DirGroup $dir $group> + <Directory "$dir"> + Require group $group + </Directory> +</Macro> + +Use DirGroup /www/apache/private private +Use DirGroup /www/apache/server admin + +UndefMacro DirGroup</pre> + + + + +</div> +<div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div> +<div class="directive-section"><h2><a name="Macro" id="Macro"><Macro></a> <a name="macro" id="macro">Directive</a></h2> +<table class="directive"> +<tr><th><a href="directive-dict.html#Description">Description:</a></th><td>Define a configuration file macro</td></tr> +<tr><th><a href="directive-dict.html#Syntax">Syntax:</a></th><td><code> +<Macro <var>name</var> [<var>par1</var> .. <var>parN</var>]> +... </Macro></code></td></tr> +<tr><th><a href="directive-dict.html#Context">Context:</a></th><td>server config, virtual host, directory</td></tr> +<tr><th><a href="directive-dict.html#Status">Status:</a></th><td>Base</td></tr> +<tr><th><a href="directive-dict.html#Module">Module:</a></th><td>mod_macro</td></tr> +</table> + <p>The <code class="directive"><Macro></code> directive controls the + definition of a macro within the server runtime configuration files. + The first argument is the name of the macro. + Other arguments are parameters to the macro. It is good practice to prefix + parameter names with any of '<code>$%@</code>', and not macro names + with such characters. + </p> + + <pre class="prettyprint lang-config"><Macro LocalAccessPolicy> + Require ip 10.2.16.0/24 +</Macro> + +<Macro RestrictedAccessPolicy $ipnumbers> + Require ip $ipnumbers +</Macro></pre> + + +</div> +<div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div> +<div class="directive-section"><h2><a name="UndefMacro" id="UndefMacro">UndefMacro</a> <a name="undefmacro" id="undefmacro">Directive</a></h2> +<table class="directive"> +<tr><th><a href="directive-dict.html#Description">Description:</a></th><td>Undefine a macro</td></tr> +<tr><th><a href="directive-dict.html#Syntax">Syntax:</a></th><td><code>UndefMacro <var>name</var></code></td></tr> +<tr><th><a href="directive-dict.html#Context">Context:</a></th><td>server config, virtual host, directory</td></tr> +<tr><th><a href="directive-dict.html#Status">Status:</a></th><td>Base</td></tr> +<tr><th><a href="directive-dict.html#Module">Module:</a></th><td>mod_macro</td></tr> +</table> + <p>The <code class="directive">UndefMacro</code> directive undefines a macro + which has been defined before hand.</p> + + <pre class="prettyprint lang-config">UndefMacro LocalAccessPolicy +UndefMacro RestrictedAccessPolicy</pre> + + +</div> +<div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div> +<div class="directive-section"><h2><a name="Use" id="Use">Use</a> <a name="use" id="use">Directive</a></h2> +<table class="directive"> +<tr><th><a href="directive-dict.html#Description">Description:</a></th><td>Use a macro</td></tr> +<tr><th><a href="directive-dict.html#Syntax">Syntax:</a></th><td><code>Use <var>name</var> [<var>value1</var> ... <var>valueN</var>] +</code></td></tr> +<tr><th><a href="directive-dict.html#Context">Context:</a></th><td>server config, virtual host, directory</td></tr> +<tr><th><a href="directive-dict.html#Status">Status:</a></th><td>Base</td></tr> +<tr><th><a href="directive-dict.html#Module">Module:</a></th><td>mod_macro</td></tr> +</table> + <p>The <code class="directive">Use</code> directive controls the use of a macro. + The specified macro is expanded. It must be given the same number of + arguments as in the macro definition. The provided values are + associated to their corresponding initial parameters and are substituted + before processing.</p> + + <pre class="prettyprint lang-config">Use LocalAccessPolicy +... +Use RestrictedAccessPolicy "192.54.172.0/24 192.54.148.0/24"</pre> + + + <p>is equivalent, with the macros defined above, to:</p> + + <pre class="prettyprint lang-config">Require ip 10.2.16.0/24 +... +Require ip 192.54.172.0/24 192.54.148.0/24</pre> + + +</div> +</div> +<div class="bottomlang"> +<p><span>Available Languages: </span><a href="../en/mod/mod_macro.html" title="English"> en </a> | +<a href="../fr/mod/mod_macro.html" hreflang="fr" rel="alternate" title="Français"> fr </a></p> +</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> +<script type="text/javascript"><!--//--><![CDATA[//><!-- +var comments_shortname = 'httpd'; +var comments_identifier = 'http://httpd.apache.org/docs/2.4/mod/mod_macro.html'; +(function(w, d) { + if (w.location.hostname.toLowerCase() == "httpd.apache.org") { + d.write('<div id="comments_thread"><\/div>'); + var s = d.createElement('script'); + s.type = 'text/javascript'; + s.async = true; + s.src = 'https://comments.apache.org/show_comments.lua?site=' + comments_shortname + '&page=' + comments_identifier; + (d.getElementsByTagName('head')[0] || d.getElementsByTagName('body')[0]).appendChild(s); + } + else { + d.write('<div id="comments_thread">Comments are disabled for this page at the moment.<\/div>'); + } +})(window, document); +//--><!]]></script></div><div id="footer"> +<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> +<p class="menu"><a href="../mod/">Modules</a> | <a href="../mod/directives.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[//><!-- +if (typeof(prettyPrint) !== 'undefined') { + prettyPrint(); +} +//--><!]]></script> +</body></html>
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