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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 15:01:30 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 15:01:30 +0000 |
| commit | 6beeb1b708550be0d4a53b272283e17e5e35fe17 (patch) | |
| tree | 1ce8673d4aaa948e5554000101f46536a1e4cc29 /docs/manual/mod/mod_dav.html.en | |
| parent | Initial commit. (diff) | |
| download | apache2-upstream/2.4.57.tar.xz apache2-upstream/2.4.57.zip | |
Adding upstream version 2.4.57.upstream/2.4.57
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
| -rw-r--r-- | docs/manual/mod/mod_dav.html.en | 281 |
1 files changed, 281 insertions, 0 deletions
diff --git a/docs/manual/mod/mod_dav.html.en b/docs/manual/mod/mod_dav.html.en new file mode 100644 index 0000000..7fd8a91 --- /dev/null +++ b/docs/manual/mod/mod_dav.html.en @@ -0,0 +1,281 @@ +<?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_dav - 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_dav</h1> +<div class="toplang"> +<p><span>Available Languages: </span><a href="../en/mod/mod_dav.html" title="English"> en </a> | +<a href="../fr/mod/mod_dav.html" hreflang="fr" rel="alternate" title="Français"> fr </a> | +<a href="../ja/mod/mod_dav.html" hreflang="ja" rel="alternate" title="Japanese"> ja </a> | +<a href="../ko/mod/mod_dav.html" hreflang="ko" rel="alternate" title="Korean"> ko </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"><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="#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 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>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_dav">Known issues</a></li><li><a href="https://bz.apache.org/bugzilla/enter_bug.cgi?product=Apache%20httpd-2&component=mod_dav">Report a bug</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> +<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="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> + + <pre class="prettyprint lang-config">Dav On</pre> + + + <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> + + <pre class="prettyprint lang-config">DavLockDB /usr/local/apache2/var/DavLock</pre> + + + <p>The directory containing the lock database file must be + writable by the <code class="directive"><a href="../mod/mod_unixd.html#user">User</a></code> + and <code class="directive"><a href="../mod/mod_unixd.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"><Limit></a></code> clause inside the <code class="directive"><a href="../mod/core.html#location"><Location></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><pre class="prettyprint lang-config">DavLockDB "/usr/local/apache2/var/DavLock" + +<Directory "/usr/local/apache2/htdocs/foo"> + Require all granted + Dav On + + AuthType Basic + AuthName DAV + AuthUserFile "user.passwd" + + <LimitExcept GET POST OPTIONS> + Require user admin + </LimitExcept> +</Directory></pre> +</div> + +</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/mod_unixd.html#user">User</a></code> and + <code class="directive"><a href="../mod/mod_unixd.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/mod_unixd.html#user">User</a></code> and <code class="directive"><a href="../mod/mod_unixd.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> + +<pre class="prettyprint lang-config">Alias "/phparea" "/home/gstein/php_files" +Alias "/php-source" "/home/gstein/php_files" +<Location "/php-source"> + Dav On + ForceType text/plain +</Location></pre> + + + <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> + + <pre class="prettyprint lang-config"><Location "/foo"> + Dav On +</Location></pre> + + + <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><pre class="prettyprint lang-config"><Location "/MSWord"> + DavMinTimeout 600 +</Location></pre> +</div> + +</div> +</div> +<div class="bottomlang"> +<p><span>Available Languages: </span><a href="../en/mod/mod_dav.html" title="English"> en </a> | +<a href="../fr/mod/mod_dav.html" hreflang="fr" rel="alternate" title="Français"> fr </a> | +<a href="../ja/mod/mod_dav.html" hreflang="ja" rel="alternate" title="Japanese"> ja </a> | +<a href="../ko/mod/mod_dav.html" hreflang="ko" rel="alternate" title="Korean"> ko </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_dav.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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