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<?xml version="1.0"?>
<!DOCTYPE modulesynopsis SYSTEM "../style/modulesynopsis.dtd">
<?xml-stylesheet type="text/xsl" href="../style/manual.en.xsl"?>
<!-- $LastChangedRevision$ -->
<!--
Copyright 2002-2006 The Apache Software Foundation or its licensors, as
applicable.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
-->
<modulesynopsis metafile="mod_userdir.xml.meta">
<name>mod_userdir</name>
<description>User-specific directories</description>
<status>Base</status>
<sourcefile>mod_userdir.c</sourcefile>
<identifier>userdir_module</identifier>
<summary>
<p>This module allows user-specific directories to be accessed using the
<code>http://example.com/~user/</code> syntax.</p>
</summary>
<seealso><a href="../urlmapping.html">Mapping URLs to the
Filesystem</a></seealso>
<seealso><a href="../howto/public_html.html">public_html
tutorial</a></seealso>
<directivesynopsis>
<name>UserDir</name>
<description>Location of the user-specific directories</description>
<syntax>UserDir <em>directory-filename</em></syntax>
<contextlist><context>server config</context> <context>virtual
host</context></contextlist>
<usage>
<p>The <directive>UserDir</directive> directive sets the real
directory in a user's home directory to use when a request for a
document for a user is received. <em>Directory-filename</em> is
one of the following:</p>
<ul>
<li>The name of a directory or a pattern such as those shown
below.</li>
<li>The keyword <code>disabled</code>. This turns off
<em>all</em> username-to-directory translations except those
explicitly named with the <code>enabled</code> keyword (see
below).</li>
<li>The keyword <code>disabled</code> followed by a
space-delimited list of usernames. Usernames that appear in
such a list will <em>never</em> have directory translation
performed, even if they appear in an <code>enabled</code>
clause.</li>
<li>The keyword <code>enabled</code> followed by a
space-delimited list of usernames. These usernames will have
directory translation performed even if a global disable is
in effect, but not if they also appear in a
<code>disabled</code> clause.</li>
</ul>
<p>If neither the <code>enabled</code> nor the
<code>disabled</code> keywords appear in the
<code>Userdir</code> directive, the argument is treated as a
filename pattern, and is used to turn the name into a directory
specification. A request for
<code>http://www.foo.com/~bob/one/two.html</code> will be
translated to:</p>
<table>
<tr><th>UserDir directive used</th>
<th>Translated path</th></tr>
<tr><td>UserDir public_html</td><td>~bob/public_html/one/two.html</td></tr>
<tr><td>UserDir /usr/web</td><td>/usr/web/bob/one/two.html</td></tr>
<tr><td>UserDir /home/*/www</td><td>/home/bob/www/one/two.html</td></tr>
</table>
<p>The following directives will send redirects to the client:</p>
<table>
<tr><th>UserDir directive used</th>
<th>Translated path</th></tr>
<tr><td>UserDir http://www.foo.com/users</td><td>http://www.foo.com/users/bob/one/two.html</td></tr>
<tr><td>UserDir
http://www.foo.com/*/usr</td><td>http://www.foo.com/bob/usr/one/two.html</td></tr>
<tr><td>UserDir
http://www.foo.com/~*/</td><td>http://www.foo.com/~bob/one/two.html</td></tr>
</table>
<note>
<strong>Be careful when using this directive; for instance,
<code>"UserDir ./"</code> would map <code>"/~root"</code> to
<code>"/"</code> - which is probably undesirable. It is strongly
recommended that your configuration include a "<code>UserDir
disabled root</code>" declaration. See also the <directive
module="core">Directory</directive> directive and the <a
href="../misc/security_tips.html">Security Tips</a> page for
more information.</strong>
</note>
<p>Additional examples:</p>
<p>To allow a few users to have <code>UserDir</code> directories, but
not anyone else, use the following:</p>
<example>
UserDir disabled<br />
UserDir enabled user1 user2 user3
</example>
<p>To allow most users to have <code>UserDir</code> directories, but
deny this to a few, use the following:</p>
<example>
UserDir enabled<br />
UserDir disabled user4 user5 user6
</example>
<p>It is also possible to specify alternative user directories.
If you use a command like:</p>
<example>
Userdir public_html /usr/web http://www.foo.com/
</example>
<p>With a request for http://www.foo.com/~bob/one/two.html, will try to
find the page at ~bob/public_html/one/two.html first, then
/usr/web/bob/one/two.html, and finally it will send a redirect
to http://www.foo.com/bob/one/two.html.</p>
<p>If you add a redirect, it must be the last alternative in the list.
Apache cannot determine if the redirect succeeded or not, so if you have
the redirect earlier in the list, that will always be the alternative
that is used.</p>
<p>User directory substitution is not active by default in versions
2.1.4 and later. In earlier versions, <code>UserDir public_html</code>
was assumed if no <directive module="mod_userdir">UserDir</directive>
directive was present.</p>
</usage>
<seealso><a href="../howto/public_html.html">public_html
tutorial</a></seealso>
</directivesynopsis>
</modulesynopsis>
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