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Extensible Markup Language  |  2007-09-01  |  11KB  |  169 lines
  1. <?xml version="1.0" encoding="ISO-8859-1"?>
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  8. <title>mod_dir - Apache HTTP Server</title>
  9. <link href="../style/css/manual.css" rel="stylesheet" media="all" type="text/css" title="Main stylesheet" />
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  12. <link href="../images/favicon.ico" rel="shortcut icon" /></head>
  13. <body>
  14. <div id="page-header">
  15. <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>
  16. <p class="apache">Apache HTTP Server Version 2.2</p>
  17. <img alt="" src="../images/feather.gif" /></div>
  18. <div class="up"><a href="./"><img title="<-" alt="<-" src="../images/left.gif" /></a></div>
  19. <div id="path">
  20. <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 2.2</a> > <a href="./">Modules</a></div>
  21. <div id="page-content">
  22. <div id="preamble"><h1>Apache Module mod_dir</h1>
  23. <div class="toplang">
  24. <p><span>Available Languages: </span><a href="../en/mod/mod_dir.html" title="English"> en </a> |
  25. <a href="../ja/mod/mod_dir.html" hreflang="ja" rel="alternate" title="Japanese"> ja </a> |
  26. <a href="../ko/mod/mod_dir.html" hreflang="ko" rel="alternate" title="Korean"> ko </a></p>
  27. </div>
  28. <table class="module"><tr><th><a href="module-dict.html#Description">Description:</a></th><td>Provides for "trailing slash" redirects and
  29.     serving directory index files</td></tr>
  30. <tr><th><a href="module-dict.html#Status">Status:</a></th><td>Base</td></tr>
  31. <tr><th><a href="module-dict.html#ModuleIdentifier">ModuleáIdentifier:</a></th><td>dir_module</td></tr>
  32. <tr><th><a href="module-dict.html#SourceFile">SourceáFile:</a></th><td>mod_dir.c</td></tr></table>
  33. <h3>Summary</h3>
  34.  
  35.     <p>The index of a directory can come from one of two sources:</p>
  36.  
  37.     <ul>
  38.       <li>A file written by the user, typically called
  39.       <code>index.html</code>. The <code class="directive"><a href="#directoryindex">DirectoryIndex</a></code> directive sets the
  40.       name of this file. This is controlled by
  41.       <code class="module"><a href="../mod/mod_dir.html">mod_dir</a></code>.</li>
  42.  
  43.       <li>Otherwise, a listing generated by the server. This is
  44.       provided by <code class="module"><a href="../mod/mod_autoindex.html">mod_autoindex</a></code>.</li>
  45.     </ul>
  46.     <p>The two functions are separated so that you can completely
  47.     remove (or replace) automatic index generation should you want
  48.     to.</p> 
  49.  
  50.     <p>A "trailing slash" redirect is issued when the server
  51.     receives a request for a URL
  52.     <code>http://servername/foo/dirname</code> where
  53.     <code>dirname</code> is a directory. Directories require a
  54.     trailing slash, so <code class="module"><a href="../mod/mod_dir.html">mod_dir</a></code> issues a redirect to
  55.     <code>http://servername/foo/dirname/</code>.</p>
  56. </div>
  57. <div id="quickview"><h3 class="directives">Directives</h3>
  58. <ul id="toc">
  59. <li><img alt="" src="../images/down.gif" /> <a href="#directoryindex">DirectoryIndex</a></li>
  60. <li><img alt="" src="../images/down.gif" /> <a href="#directoryslash">DirectorySlash</a></li>
  61. </ul>
  62. </div>
  63.  
  64. <div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div>
  65. <div class="directive-section"><h2><a name="DirectoryIndex" id="DirectoryIndex">DirectoryIndex</a> <a name="directoryindex" id="directoryindex">Directive</a></h2>
  66. <table class="directive">
  67. <tr><th><a href="directive-dict.html#Description">Description:</a></th><td>List of resources to look for when the client requests
  68. a directory</td></tr>
  69. <tr><th><a href="directive-dict.html#Syntax">Syntax:</a></th><td><code>DirectoryIndex
  70.     <var>local-url</var> [<var>local-url</var>] ...</code></td></tr>
  71. <tr><th><a href="directive-dict.html#Default">Default:</a></th><td><code>DirectoryIndex index.html</code></td></tr>
  72. <tr><th><a href="directive-dict.html#Context">Context:</a></th><td>server config, virtual host, directory, .htaccess</td></tr>
  73. <tr><th><a href="directive-dict.html#Override">Override:</a></th><td>Indexes</td></tr>
  74. <tr><th><a href="directive-dict.html#Status">Status:</a></th><td>Base</td></tr>
  75. <tr><th><a href="directive-dict.html#Module">Module:</a></th><td>mod_dir</td></tr>
  76. </table>
  77.     <p>The <code class="directive">DirectoryIndex</code> directive sets the
  78.     list of resources to look for, when the client requests an index
  79.     of the directory by specifying a / at the end of the directory
  80.     name.  <var>Local-url</var> is the (%-encoded) URL of a document on
  81.     the server relative to the requested directory; it is usually the
  82.     name of a file in the directory. Several URLs may be given, in
  83.     which case the server will return the first one that it finds.  If
  84.     none of the resources exist and the <code>Indexes</code> option is
  85.     set, the server will generate its own listing of the
  86.     directory.</p>
  87.  
  88.     <div class="example"><h3>Example</h3><p><code>
  89.       DirectoryIndex index.html
  90.     </code></p></div>
  91.  
  92.     <p>then a request for <code>http://myserver/docs/</code> would
  93.     return <code>http://myserver/docs/index.html</code> if it
  94.     exists, or would list the directory if it did not.</p>
  95.  
  96.     <p>Note that the documents do not need to be relative to the
  97.     directory;</p>
  98.  
  99.     <div class="example"><p><code>
  100.       DirectoryIndex index.html index.txt  /cgi-bin/index.pl
  101.     </code></p></div>
  102.  
  103.     <p>would cause the CGI script <code>/cgi-bin/index.pl</code> to be
  104.     executed if neither <code>index.html</code> or <code>index.txt</code>
  105.     existed in a directory.</p>
  106.  
  107. </div>
  108. <div class="top"><a href="#page-header"><img alt="top" src="../images/up.gif" /></a></div>
  109. <div class="directive-section"><h2><a name="DirectorySlash" id="DirectorySlash">DirectorySlash</a> <a name="directoryslash" id="directoryslash">Directive</a></h2>
  110. <table class="directive">
  111. <tr><th><a href="directive-dict.html#Description">Description:</a></th><td>Toggle trailing slash redirects on or off</td></tr>
  112. <tr><th><a href="directive-dict.html#Syntax">Syntax:</a></th><td><code>DirectorySlash On|Off</code></td></tr>
  113. <tr><th><a href="directive-dict.html#Default">Default:</a></th><td><code>DirectorySlash On</code></td></tr>
  114. <tr><th><a href="directive-dict.html#Context">Context:</a></th><td>server config, virtual host, directory, .htaccess</td></tr>
  115. <tr><th><a href="directive-dict.html#Override">Override:</a></th><td>Indexes</td></tr>
  116. <tr><th><a href="directive-dict.html#Status">Status:</a></th><td>Base</td></tr>
  117. <tr><th><a href="directive-dict.html#Module">Module:</a></th><td>mod_dir</td></tr>
  118. <tr><th><a href="directive-dict.html#Compatibility">Compatibility:</a></th><td>Available in version 2.0.51 and later</td></tr>
  119. </table>
  120.     <p>The <code class="directive">DirectorySlash</code> directive determines, whether
  121.     <code class="module"><a href="../mod/mod_dir.html">mod_dir</a></code> should fixup URLs pointing to a directory or
  122.     not.</p>
  123.  
  124.     <p>Typically if a user requests a resource without a trailing slash, which
  125.     points to a directory, <code class="module"><a href="../mod/mod_dir.html">mod_dir</a></code> redirects him to the same
  126.     resource, but <em>with</em> trailing slash for some good reasons:</p>
  127.  
  128.     <ul>
  129.     <li>The user is finally requesting the canonical URL of the resource</li>
  130.     <li><code class="module"><a href="../mod/mod_autoindex.html">mod_autoindex</a></code> works correctly. Since it doesn't emit
  131.     the path in the link, it would point to the wrong path.</li>
  132.     <li><code class="directive"><a href="#directoryindex">DirectoryIndex</a></code> will be evaluated
  133.     <em>only</em> for directories requested with trailing slash.</li>
  134.     <li>Relative URL references inside html pages will work correctly.</li>
  135.     </ul>
  136.  
  137.     <p>Well, if you don't want this effect <em>and</em> the reasons above don't
  138.     apply to you, you can turn off the redirect with:</p>
  139.  
  140.     <div class="example"><p><code>
  141.         # see security warning below!<br />
  142.         <Location /some/path><br />
  143.         <span class="indent">
  144.             DirectorySlash Off<br />
  145.             SetHandler some-handler<br />
  146.         </span>
  147.         </Location>
  148.     </code></p></div>
  149.  
  150.     <div class="warning"><h3>Security Warning</h3>
  151.     <p>Turning off the trailing slash redirect may result in an information
  152.     disclosure. Consider a situation where <code class="module"><a href="../mod/mod_autoindex.html">mod_autoindex</a></code> is
  153.     active (<code>Options +Indexes</code>) and <code class="directive"><a href="#directoryindex">DirectoryIndex</a></code> is set to a valid resource (say,
  154.     <code>index.html</code>) and there's no other special handler defined for
  155.     that URL. In this case a request with a trailing slash would show the
  156.     <code>index.html</code> file. <strong>But a request without trailing slash
  157.     would list the directory contents</strong>.</p>
  158.     </div>
  159.  
  160. </div>
  161. </div>
  162. <div class="bottomlang">
  163. <p><span>Available Languages: </span><a href="../en/mod/mod_dir.html" title="English"> en </a> |
  164. <a href="../ja/mod/mod_dir.html" hreflang="ja" rel="alternate" title="Japanese"> ja </a> |
  165. <a href="../ko/mod/mod_dir.html" hreflang="ko" rel="alternate" title="Korean"> ko </a></p>
  166. </div><div id="footer">
  167. <p class="apache">Copyright 2007 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>
  168. <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>
  169. </body></html>