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+<p class="apache">Apache HTTP Server Version 2.5</p>
+<img alt="" src="./images/feather.gif" /></div>
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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></div><div id="page-content"><div id="preamble"><h1>Apache's Handler Use</h1>
+<div class="toplang">
+<p><span>Available Languages: </span><a href="./en/handler.html" title="English"> en </a> |
+<a href="./es/handler.html" hreflang="es" rel="alternate" title="Español"> es </a> |
+<a href="./fr/handler.html" hreflang="fr" rel="alternate" title="Français"> fr </a> |
+<a href="./ja/handler.html" hreflang="ja" rel="alternate" title="Japanese"> ja </a> |
+<a href="./ko/handler.html" hreflang="ko" rel="alternate" title="Korean"> ko </a> |
+<a href="./tr/handler.html" hreflang="tr" rel="alternate" title="Türkçe"> tr </a> |
+<a href="./zh-cn/handler.html" hreflang="zh-cn" rel="alternate" title="Simplified Chinese"> zh-cn </a></p>
+</div>
+
+ <p>This document describes the use of Apache's Handlers.</p>
+ </div>
+<div id="quickview"><ul id="toc"><li><img alt="" src="./images/down.gif" /> <a href="#definition">What is a Handler</a></li>
+<li><img alt="" src="./images/down.gif" /> <a href="#examples">Examples</a></li>
+<li><img alt="" src="./images/down.gif" /> <a href="#programmer">Programmer's Note</a></li>
+</ul><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="definition" id="definition">What is a Handler</a></h2>
+
+ <table class="related"><tr><th>Related Modules</th><th>Related Directives</th></tr><tr><td><ul><li><code class="module"><a href="./mod/mod_actions.html">mod_actions</a></code></li><li><code class="module"><a href="./mod/mod_asis.html">mod_asis</a></code></li><li><code class="module"><a href="./mod/mod_cgi.html">mod_cgi</a></code></li><li><code class="module"><a href="./mod/mod_imagemap.html">mod_imagemap</a></code></li><li><code class="module"><a href="./mod/mod_info.html">mod_info</a></code></li><li><code class="module"><a href="./mod/mod_mime.html">mod_mime</a></code></li><li><code class="module"><a href="./mod/mod_negotiation.html">mod_negotiation</a></code></li><li><code class="module"><a href="./mod/mod_status.html">mod_status</a></code></li></ul></td><td><ul><li><code class="directive"><a href="./mod/mod_actions.html#action">Action</a></code></li><li><code class="directive"><a href="./mod/mod_mime.html#addhandler">AddHandler</a></code></li><li><code class="directive"><a href="./mod/mod_mime.html#removehandler">RemoveHandler</a></code></li><li><code class="directive"><a href="./mod/core.html#sethandler">SetHandler</a></code></li></ul></td></tr></table>
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- <title>Apache's Handler Use</title>
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-
- <h1 align="CENTER">Apache's Handler Use</h1>
-
- <ul>
- <li><a href="#definition">What is a Handler</a></li>
-
- <li><a href="#examples">Examples</a></li>
-
- <li><a href="#programmer">Programmer's Note</a></li>
- </ul>
- <hr />
-
- <h2><a id="definition" name="definition">What is a
- Handler</a></h2>
-
- <table border="1">
- <tr>
- <td valign="top"><strong>Related Modules</strong><br />
- <br />
- <a href="mod/mod_actions.html">mod_actions</a><br />
- <a href="mod/mod_asis.html">mod_asis</a><br />
- <a href="mod/mod_cgi.html">mod_cgi</a><br />
- <a href="mod/mod_imap.html">mod_imap</a><br />
- <a href="mod/mod_info.html">mod_info</a><br />
- <a href="mod/mod_mime.html">mod_mime</a><br />
- <a
- href="mod/mod_negotiation.html">mod_negotiation</a><br />
- <a href="mod/mod_status.html">mod_status</a><br />
- </td>
-
- <td valign="top"><strong>Related Directives</strong><br />
- <br />
- <a href="mod/mod_actions.html#action">Action</a><br />
- <a
- href="mod/mod_mime.html#addhandler">AddHandler</a><br />
- <a
- href="mod/mod_mime.html#removehandler">RemoveHandler</a><br />
- <a
- href="mod/mod_mime.html#sethandler">SetHandler</a><br />
- </td>
- </tr>
- </table>
<p>A "handler" is an internal Apache representation of the
action to be performed when a file is called. Generally, files
files are simply served by the server, but certain file types
are "handled" separately.</p>
- <p>Apache 1.1 adds the ability to use handlers explicitly.
- Based on either filename extensions or on location, handlers
- can be specified without relation to file type. This is
+ <p>Handlers may also be configured explicitly,
+ based on either filename extensions or on location,
+ without relation to file type. This is
advantageous both because it is a more elegant solution, and
because it also allows for both a type <strong>and</strong> a
- handler to be associated with a file. (See also <a
- href="mod/mod_mime.html#multipleext">Files with Multiple
+ handler to be associated with a file. (See also <a href="mod/mod_mime.html#multipleext">Files with Multiple
Extensions</a>.)</p>
<p>Handlers can either be built into the server or included in
- a module, or they can be added with the <a
- href="mod/mod_actions.html#action">Action</a> directive. The
+ a module, or they can be added with the <code class="directive"><a href="./mod/mod_actions.html#action">Action</a></code> directive. The
built-in handlers in the standard distribution are as
follows:</p>
default to handle static content. (core)</li>
<li><strong>send-as-is</strong>: Send file with HTTP headers
- as is. (<a href="mod/mod_asis.html">mod_asis</a>)</li>
+ as is. (<code class="module"><a href="./mod/mod_asis.html">mod_asis</a></code>)</li>
<li><strong>cgi-script</strong>: Treat the file as a CGI
- script. (<a href="mod/mod_cgi.html">mod_cgi</a>)</li>
+ script. (<code class="module"><a href="./mod/mod_cgi.html">mod_cgi</a></code>)</li>
<li><strong>imap-file</strong>: Parse as an imagemap rule
- file. (<a href="mod/mod_imap.html">mod_imap</a>)</li>
+ file. (<code class="module"><a href="./mod/mod_imagemap.html">mod_imagemap</a></code>)</li>
<li><strong>server-info</strong>: Get the server's
- configuration information. (<a
- href="mod/mod_info.html">mod_info</a>)</li>
+ configuration information. (<code class="module"><a href="./mod/mod_info.html">mod_info</a></code>)</li>
<li><strong>server-status</strong>: Get the server's status
- report. (<a href="mod/mod_status.html">mod_status</a>)</li>
+ report. (<code class="module"><a href="./mod/mod_status.html">mod_status</a></code>)</li>
<li><strong>type-map</strong>: Parse as a type map file for
- content negotiation. (<a
- href="mod/mod_negotiation.html">mod_negotiation</a>)</li>
+ content negotiation. (<code class="module"><a href="./mod/mod_negotiation.html">mod_negotiation</a></code>)</li>
</ul>
- <hr />
-
- <h2><a id="examples" name="examples">Examples</a></h2>
-
- <h3>Modifying static content using a CGI script</h3>
-
- <p>The following directives will cause requests for files with
- the <code>html</code> extension to trigger the launch of the
- <code>footer.pl</code> CGI script.</p>
-<pre>
- Action add-footer /cgi-bin/footer.pl
- AddHandler add-footer .html
-</pre>
-
- <p>Then the CGI script is responsible for sending the
- originally requested document (pointed to by the
- <code>PATH_TRANSLATED</code> environment variable) and making
- whatever modifications or additions are desired.</p>
-
- <h3>Files with HTTP headers</h3>
-
- <p>The following directives will enable the
- <code>send-as-is</code> handler, which is used for files which
- contain their own HTTP headers. All files in the
- <code>/web/htdocs/asis/</code> directory will be processed by
- the <code>send-as-is</code> handler, regardless of their
- filename extensions.</p>
-<pre>
- <Directory /web/htdocs/asis>
+ </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><a name="example1" id="example1">Modifying static content using a CGI script</a></h3>
+
+
+ <p>The following directives will cause requests for files with
+ the <code>html</code> extension to trigger the launch of the
+ <code>footer.pl</code> CGI script.</p>
+
+ <pre class="prettyprint lang-config">
+Action add-footer /cgi-bin/footer.pl
+AddHandler add-footer .html
+ </pre>
+
+
+ <p>Then the CGI script is responsible for sending the
+ originally requested document (pointed to by the
+ <code>PATH_TRANSLATED</code> environment variable) and making
+ whatever modifications or additions are desired.</p>
+
+
+ <h3><a name="example2" id="example2">Files with HTTP headers</a></h3>
+
+
+ <p>The following directives will enable the
+ <code>send-as-is</code> handler, which is used for files which
+ contain their own HTTP headers. All files in the
+ <code>/web/htdocs/asis/</code> directory will be processed by
+ the <code>send-as-is</code> handler, regardless of their
+ filename extensions.</p>
+
+ <pre class="prettyprint lang-config">
+<Directory /web/htdocs/asis>
SetHandler send-as-is
- </Directory>
-</pre>
- <hr />
+</Directory>
+ </pre>
+
- <h2><a id="programmer" name="programmer">Programmer's
- Note</a></h2>
+
+ </div><div class="top"><a href="#page-header"><img alt="top" src="./images/up.gif" /></a></div>
+<div class="section">
+<h2><a name="programmer" id="programmer">Programmer's Note</a></h2>
+
<p>In order to implement the handler features, an addition has
been made to the <a href="developer/API.html">Apache API</a> that
you may wish to make use of. Specifically, a new record has
been added to the <code>request_rec</code> structure:</p>
-<pre>
- char *handler
-</pre>
+
+ <pre class="prettyprint lang-c">
+ char *handler
+ </pre>
+
<p>If you wish to have your module engage a handler, you need
only to set <code>r->handler</code> to the name of the
type. While it is not necessary, the naming convention for
handlers is to use a dash-separated word, with no slashes, so
as to not invade the media type name-space.</p>
- <!--#include virtual="footer.html" -->
- </body>
-</html>
-
+ </div></div>
+<div class="bottomlang">
+<p><span>Available Languages: </span><a href="./en/handler.html" title="English"> en </a> |
+<a href="./es/handler.html" hreflang="es" rel="alternate" title="Español"> es </a> |
+<a href="./fr/handler.html" hreflang="fr" rel="alternate" title="Français"> fr </a> |
+<a href="./ja/handler.html" hreflang="ja" rel="alternate" title="Japanese"> ja </a> |
+<a href="./ko/handler.html" hreflang="ko" rel="alternate" title="Korean"> ko </a> |
+<a href="./tr/handler.html" hreflang="tr" rel="alternate" title="Türkçe"> tr </a> |
+<a href="./zh-cn/handler.html" hreflang="zh-cn" rel="alternate" title="Simplified Chinese"> zh-cn </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 again 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 Freenode, or sent to our <a href="http://httpd.apache.org/lists.html">mailing lists</a>.</div>
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