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-<p class="menu"><a href="../mod/">Modules</a> | <a href="../mod/directives.html">Directives</a> | <a href="../faq/">FAQ</a> | <a href="../glossary.html">Glossary</a> | <a href="../sitemap.html">Sitemap</a></p>
-<p class="apache">Apache HTTP Server Version 2.0</p>
-<img alt="" src="../images/feather.gif" /></div>
-<div class="up"><a href="./"><img title="&lt;-" alt="&lt;-" src="../images/left.gif" /></a></div>
-<div id="path">
-<a href="http://www.apache.org/">Apache</a> &gt; <a href="http://httpd.apache.org/">HTTP Server</a> &gt; <a href="http://httpd.apache.org/docs/">Documentation</a> &gt; <a href="../">Version 2.0</a> &gt; <a href="./">Modules</a></div>
-<div id="page-content">
-<div id="preamble"><h1>Apache Module mod_dav</h1>
-<div class="toplang">
-<p><span>Available Languages: </span><a href="../en/mod/mod_dav.html" title="English">&nbsp;en&nbsp;</a> |
-<a href="../ja/mod/mod_dav.html" hreflang="ja" rel="alternate" title="Japanese">&nbsp;ja&nbsp;</a> |
-<a href="../ko/mod/mod_dav.html" hreflang="ko" rel="alternate" title="Korean">&nbsp;ko&nbsp;</a></p>
-</div>
-<table class="module"><tr><th><a href="module-dict.html#Description">Description:</a></th><td>Distributed Authoring and Versioning
-(<a href="http://www.webdav.org/">WebDAV</a>) functionality</td></tr>
-<tr><th><a href="module-dict.html#Status">Status:</a></th><td>Extension</td></tr>
-<tr><th><a href="module-dict.html#ModuleIdentifier">Module Identifier:</a></th><td>dav_module</td></tr>
-<tr><th><a href="module-dict.html#SourceFile">Source File:</a></th><td>mod_dav.c</td></tr></table>
-<h3>Summary</h3>
-
- <p>This module provides class 1 and class 2 <a href="http://www.webdav.org">WebDAV</a> ('Web-based Distributed
- Authoring and Versioning') functionality for Apache. This
- extension to the HTTP protocol allows creating, moving,
- copying, and deleting resources and collections on a remote web
- server.</p>
-</div>
-<div id="quickview"><h3 class="directives">Directives</h3>
-<ul id="toc">
-<li><img alt="" src="../images/down.gif" /> <a href="#dav">Dav</a></li>
-<li><img alt="" src="../images/down.gif" /> <a href="#davdepthinfinity">DavDepthInfinity</a></li>
-<li><img alt="" src="../images/down.gif" /> <a href="#davmintimeout">DavMinTimeout</a></li>
-</ul>
-<h3>Topics</h3>
-<ul id="topics">
-<li><img alt="" src="../images/down.gif" /> <a href="#example">Enabling WebDAV</a></li>
-<li><img alt="" src="../images/down.gif" /> <a href="#security">Security Issues</a></li>
-<li><img alt="" src="../images/down.gif" /> <a href="#complex">Complex Configurations</a></li>
-</ul><h3>See also</h3>
-<ul class="seealso">
-<li><code class="directive"><a href="../mod/mod_dav_fs.html#davlockdb">DavLockDB</a></code></li>
-<li><code class="directive"><a href="../mod/core.html#limitxmlrequestbody">LimitXMLRequestBody</a></code></li>
-<li><a href="http://www.webdav.org">WebDAV Resources</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="example" id="example">Enabling WebDAV</a></h2>
- <p>To enable <code class="module"><a href="../mod/mod_dav.html">mod_dav</a></code>, add the following to a
- container in your <code>httpd.conf</code> file:</p>
-
- <div class="example"><p><code>Dav On</code></p></div>
-
- <p>This enables the DAV file system provider, which is implemented
- by the <code class="module"><a href="../mod/mod_dav_fs.html">mod_dav_fs</a></code> module. Therefore, that module
- must be compiled into the server or loaded at runtime using the
- <code class="directive"><a href="../mod/mod_so.html#loadmodule">LoadModule</a></code> directive.</p>
-
- <p>In addition, a location for the DAV lock database must be
- specified in the global section of your <code>httpd.conf</code>
- file using the <code class="directive"><a href="../mod/mod_dav_fs.html#davlockdb">DavLockDB</a></code>
- directive:</p>
-
- <div class="example"><p><code>
- DavLockDB /usr/local/apache2/var/DavLock
- </code></p></div>
-
- <p>The directory containing the lock database file must be
- writable by the <code class="directive"><a href="../mod/mpm_common.html#user">User</a></code>
- and <code class="directive"><a href="../mod/mpm_common.html#group">Group</a></code> under which
- Apache is running.</p>
-
- <p>You may wish to add a <code class="directive"><a href="../mod/core.html#limit">&lt;Limit&gt;</a></code> clause inside the <code class="directive"><a href="../mod/core.html#location">&lt;Location&gt;</a></code> directive to limit access to
- DAV-enabled locations. If you want to set the maximum amount of
- bytes that a DAV client can send at one request, you have to use
- the <code class="directive"><a href="../mod/core.html#limitxmlrequestbody">LimitXMLRequestBody</a></code>
- directive. The "normal" <code class="directive"><a href="../mod/core.html#limitrequestbody">LimitRequestBody</a></code> directive has no effect on DAV
- requests.</p>
-
- <div class="example"><h3>Full Example</h3><p><code>
- DavLockDB /usr/local/apache2/var/DavLock<br />
- <br />
- &lt;Location /foo&gt;<br />
- <span class="indent">
- Dav On<br />
- <br />
- AuthType Basic<br />
- AuthName DAV<br />
- AuthUserFile user.passwd<br />
- <br />
- &lt;LimitExcept GET OPTIONS&gt;<br />
- <span class="indent">
- require user admin<br />
- </span>
- &lt;/LimitExcept&gt;<br />
- </span>
- &lt;/Location&gt;<br />
- </code></p></div>
-
- <p><code class="module"><a href="../mod/mod_dav.html">mod_dav</a></code> is a descendent of Greg Stein's <a href="http://www.webdav.org/mod_dav/">mod_dav for Apache 1.3</a>. More
- information about the module is available from that site.</p>
-</div><div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div>
-<div class="section">
-<h2><a name="security" id="security">Security Issues</a></h2>
-
- <p>Since DAV access methods allow remote clients to manipulate
- files on the server, you must take particular care to assure that
- your server is secure before enabling <code class="module"><a href="../mod/mod_dav.html">mod_dav</a></code>.</p>
-
- <p>Any location on the server where DAV is enabled should be
- protected by authentication. The use of HTTP Basic Authentication
- is not recommended. You should use at least HTTP Digest
- Authentication, which is provided by the
- <code class="module"><a href="../mod/mod_auth_digest.html">mod_auth_digest</a></code> module. Nearly all WebDAV clients
- support this authentication method. An alternative is Basic
- Authentication over an <a href="../ssl/">SSL</a> enabled
- connection.</p>
-
- <p>In order for <code class="module"><a href="../mod/mod_dav.html">mod_dav</a></code> to manage files, it must
- be able to write to the directories and files under its control
- using the <code class="directive"><a href="../mod/mpm_common.html#user">User</a></code> and
- <code class="directive"><a href="../mod/mpm_common.html#group">Group</a></code> under which
- Apache is running. New files created will also be owned by this
- <code class="directive"><a href="../mod/mpm_common.html#user">User</a></code> and <code class="directive"><a href="../mod/mpm_common.html#group">Group</a></code>. For this reason, it is
- important to control access to this account. The DAV repository
- is considered private to Apache; modifying files outside of Apache
- (for example using FTP or filesystem-level tools) should not be
- allowed.</p>
-
- <p><code class="module"><a href="../mod/mod_dav.html">mod_dav</a></code> may be subject to various kinds of
- denial-of-service attacks. The <code class="directive"><a href="../mod/core.html#limitxmlrequestbody">LimitXMLRequestBody</a></code> directive can be
- used to limit the amount of memory consumed in parsing large DAV
- requests. The <code class="directive"><a href="#davdepthinfinity">DavDepthInfinity</a></code> directive can be
- used to prevent <code>PROPFIND</code> requests on a very large
- repository from consuming large amounts of memory. Another
- possible denial-of-service attack involves a client simply filling
- up all available disk space with many large files. There is no
- direct way to prevent this in Apache, so you should avoid giving
- DAV access to untrusted users.</p>
-</div><div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div>
-<div class="section">
-<h2><a name="complex" id="complex">Complex Configurations</a></h2>
-
- <p>One common request is to use <code class="module"><a href="../mod/mod_dav.html">mod_dav</a></code> to
- manipulate dynamic files (PHP scripts, CGI scripts, etc). This is
- difficult because a <code>GET</code> request will always run the
- script, rather than downloading its contents. One way to avoid
- this is to map two different URLs to the content, one of which
- will run the script, and one of which will allow it to be
- downloaded and manipulated with DAV.</p>
-
-<div class="example"><p><code>
-Alias /phparea /home/gstein/php_files<br />
-Alias /php-source /home/gstein/php_files<br />
-&lt;Location /php-source&gt;
-<span class="indent">
- DAV On<br />
- ForceType text/plain<br />
-</span>
-&lt;/Location&gt;
-</code></p></div>
-
- <p>With this setup, <code>http://example.com/phparea</code> can be
- used to access the output of the PHP scripts, and
- <code>http://example.com/php-source</code> can be used with a DAV
- client to manipulate them.</p>
-</div>
-<div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div>
-<div class="directive-section"><h2><a name="Dav" id="Dav">Dav</a> <a name="dav" id="dav">Directive</a></h2>
-<table class="directive">
-<tr><th><a href="directive-dict.html#Description">Description:</a></th><td>Enable WebDAV HTTP methods</td></tr>
-<tr><th><a href="directive-dict.html#Syntax">Syntax:</a></th><td><code>Dav On|Off|<var>provider-name</var></code></td></tr>
-<tr><th><a href="directive-dict.html#Default">Default:</a></th><td><code>Dav Off</code></td></tr>
-<tr><th><a href="directive-dict.html#Context">Context:</a></th><td>directory</td></tr>
-<tr><th><a href="directive-dict.html#Status">Status:</a></th><td>Extension</td></tr>
-<tr><th><a href="directive-dict.html#Module">Module:</a></th><td>mod_dav</td></tr>
-</table>
- <p>Use the <code class="directive">Dav</code> directive to enable the
- WebDAV HTTP methods for the given container:</p>
-
- <div class="example"><p><code>
- &lt;Location /foo&gt;<br />
- <span class="indent">
- Dav On<br />
- </span>
- &lt;/Location&gt;
- </code></p></div>
-
- <p>The value <code>On</code> is actually an alias for the default
- provider <code>filesystem</code> which is served by the <code class="module"><a href="../mod/mod_dav_fs.html">mod_dav_fs</a></code> module. Note, that once you have DAV enabled
- for some location, it <em>cannot</em> be disabled for sublocations.
- For a complete configuration example have a look at the <a href="#example">section above</a>.</p>
-
- <div class="warning">
- Do not enable WebDAV until you have secured your server. Otherwise
- everyone will be able to distribute files on your system.
- </div>
-
-</div>
-<div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div>
-<div class="directive-section"><h2><a name="DavDepthInfinity" id="DavDepthInfinity">DavDepthInfinity</a> <a name="davdepthinfinity" id="davdepthinfinity">Directive</a></h2>
-<table class="directive">
-<tr><th><a href="directive-dict.html#Description">Description:</a></th><td>Allow PROPFIND, Depth: Infinity requests</td></tr>
-<tr><th><a href="directive-dict.html#Syntax">Syntax:</a></th><td><code>DavDepthInfinity on|off</code></td></tr>
-<tr><th><a href="directive-dict.html#Default">Default:</a></th><td><code>DavDepthInfinity off</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>Extension</td></tr>
-<tr><th><a href="directive-dict.html#Module">Module:</a></th><td>mod_dav</td></tr>
-</table>
- <p>Use the <code class="directive">DavDepthInfinity</code> directive to
- allow the processing of <code>PROPFIND</code> requests containing the
- header 'Depth: Infinity'. Because this type of request could constitute
- a denial-of-service attack, by default it is not allowed.</p>
-
-</div>
-<div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div>
-<div class="directive-section"><h2><a name="DavMinTimeout" id="DavMinTimeout">DavMinTimeout</a> <a name="davmintimeout" id="davmintimeout">Directive</a></h2>
-<table class="directive">
-<tr><th><a href="directive-dict.html#Description">Description:</a></th><td>Minimum amount of time the server holds a lock on
-a DAV resource</td></tr>
-<tr><th><a href="directive-dict.html#Syntax">Syntax:</a></th><td><code>DavMinTimeout <var>seconds</var></code></td></tr>
-<tr><th><a href="directive-dict.html#Default">Default:</a></th><td><code>DavMinTimeout 0</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>Extension</td></tr>
-<tr><th><a href="directive-dict.html#Module">Module:</a></th><td>mod_dav</td></tr>
-</table>
- <p>When a client requests a DAV resource lock, it can also
- specify a time when the lock will be automatically removed by
- the server. This value is only a request, and the server can
- ignore it or inform the client of an arbitrary value.</p>
-
- <p>Use the <code class="directive">DavMinTimeout</code> directive to specify, in
- seconds, the minimum lock timeout to return to a client.
- Microsoft Web Folders defaults to a timeout of 120 seconds; the
- <code class="directive">DavMinTimeout</code> can override this to a higher value
- (like 600 seconds) to reduce the chance of the client losing
- the lock due to network latency.</p>
-
- <div class="example"><h3>Example</h3><p><code>
- &lt;Location /MSWord&gt;<br />
- <span class="indent">
- DavMinTimeout 600<br />
- </span>
- &lt;/Location&gt;
- </code></p></div>
-
-</div>
-</div>
-<div class="bottomlang">
-<p><span>Available Languages: </span><a href="../en/mod/mod_dav.html" title="English">&nbsp;en&nbsp;</a> |
-<a href="../ja/mod/mod_dav.html" hreflang="ja" rel="alternate" title="Japanese">&nbsp;ja&nbsp;</a> |
-<a href="../ko/mod/mod_dav.html" hreflang="ko" rel="alternate" title="Korean">&nbsp;ko&nbsp;</a></p>
-</div><div id="footer">
-<p class="apache">Copyright 2009 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="../faq/">FAQ</a> | <a href="../glossary.html">Glossary</a> | <a href="../sitemap.html">Sitemap</a></p></div>
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