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<div id="preamble"><h1>Apache Module mod_dav</h1>
<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>
</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 has to
    be compiled into the server or has to be loaded at runtime using the
    <code class="directive"><a href="../mod/mod_so.html#loadmodule">LoadModule</a></code> directive.</p>
    
    <p>In order to make it work you have to specify a web-server writable
    filename for the DAV lock database by adding the following to the
    global section in your <code>httpd.conf</code> file:</p>

    <div class="example"><p><code>
      DavLockDB /tmp/DavLock
    </code></p></div>

    <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 /tmp/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 HEAD OPTIONS&gt;<br />
         <span class="indent">
           require user admin<br />
         </span>
         &lt;/LimitExcept&gt;<br />
       </span>
       &lt;/Location&gt;<br />
    </code></p></div>

    <div class="warning"><h3>Security</h3>
      <p>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. Of course, Basic Authentication
      over an <a href="../ssl/">SSL</a> enabled connection is secure,
      too.</p>
    </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="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>
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