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Editing: Directory.html

<!DOCTYPE html>

<title>class Rack::Directory - rack-2.2.22 Documentation</title>

<div id="table-of-contents-navigation">
    <a href="../table_of_contents.html#pages">Pages</a>
    <a href="../table_of_contents.html#classes">Classes</a>
    <a href="../table_of_contents.html#methods">Methods</a>
  </div>
</div>

</div>

<div id="class-metadata">
    
    <div id="parent-class-section" class="nav-section">
  <h3>Parent</h3>

<p class="link">Object
  
</div>

<div id="method-list-section" class="nav-section">
  <h3>Methods</h3>

<ul class="link-list" role="directory">
    
    <li ><a href="#method-c-new">::new</a>
    
    <li ><a href="#method-i-call">#call</a>
    
    <li ><a href="#method-i-check_bad_request">#check_bad_request</a>
    
    <li ><a href="#method-i-check_forbidden">#check_forbidden</a>
    
    <li ><a href="#method-i-entity_not_found">#entity_not_found</a>
    
    <li ><a href="#method-i-filesize_format">#filesize_format</a>
    
    <li ><a href="#method-i-get">#get</a>
    
    <li ><a href="#method-i-list_directory">#list_directory</a>
    
    <li ><a href="#method-i-list_path">#list_path</a>
    
    <li ><a href="#method-i-stat">#stat</a>
    
  </ul>
</div>

</div>
</nav>

<main role="main" aria-labelledby="class-Rack::Directory">
  <h1 id="class-Rack::Directory" class="class">
    class Rack::Directory
  </h1>

<section class="description">
    
<p><a href="Directory.html"><code>Rack::Directory</code></a> serves entries below the <code>root</code> given, according to the path info of the <a href="../Rack.html"><code>Rack</code></a> request. If a directory is found, the file&#39;s contents will be presented in an html based index. If a file is found, the env will be passed to the specified <code>app</code>.</p>

<p>If <code>app</code> is not specified, a <a href="Files.html"><code>Rack::Files</code></a> of the same <code>root</code> will be used.</p>

</section>

<section class="constants-list">
      <header>
        <h3>Constants</h3>
      </header>
      <dl>
      
        <dt id="DIR_FILE">DIR_FILE
        
        <dd>
        
      
        <dt id="DIR_PAGE_FOOTER">DIR_PAGE_FOOTER
        
        <dd>
        
      
        <dt id="DIR_PAGE_HEADER">DIR_PAGE_HEADER
        
        <dd>
        
      
        <dt id="FILESIZE_FORMAT">FILESIZE_FORMAT
        
        <dd><p>Stolen from Ramaze</p>
        
      
      </dl>
    </section>

<section class="attribute-method-details" class="method-section">
      <header>
        <h3>Attributes</h3>
      </header>

<div class="method-description">
        
        <p>The root of the directory hierarchy.  Only requests for files and directories inside of the root directory are supported.</p>
        
        </div>
      </div>
      
    </section>

<section id="public-class-5Buntitled-5D-method-details" class="method-section">
       <header>
         <h3>Public Class Methods</h3>
       </header>

<div id="method-c-new" class="method-detail ">
        
        <div class="method-heading">
          <span class="method-name">new</span><span
            class="method-args">(root, app = nil)</span>
          
          <span class="method-click-advice">click to toggle source</span>
          
        </div>

<div class="method-description">
          
          <p>Set the root directory and application for serving files.</p>

<div class="method-source-code" id="new-source">
            <pre><span class="ruby-comment"># File lib/rack/directory.rb, line 77</span>
<span class="ruby-keyword">def</span> <span class="ruby-identifier ruby-title">initialize</span>(<span class="ruby-identifier">root</span>, <span class="ruby-identifier">app</span> = <span class="ruby-keyword">nil</span>)
  <span class="ruby-ivar">@root</span> = <span class="ruby-operator">::</span><span class="ruby-constant">File</span>.<span class="ruby-identifier">expand_path</span>(<span class="ruby-identifier">root</span>)
  <span class="ruby-ivar">@root_with_separator</span> = <span class="ruby-ivar">@root</span>.<span class="ruby-identifier">end_with?</span>(<span class="ruby-operator">::</span><span class="ruby-constant">File</span><span class="ruby-operator">::</span><span class="ruby-constant">SEPARATOR</span>) <span class="ruby-operator">?</span> <span class="ruby-ivar">@root</span> <span class="ruby-operator">:</span> <span class="ruby-node">&quot;#{@root}#{::File::SEPARATOR}&quot;</span>
  <span class="ruby-ivar">@app</span> = <span class="ruby-identifier">app</span> <span class="ruby-operator">||</span> <span class="ruby-constant">Files</span>.<span class="ruby-identifier">new</span>(<span class="ruby-ivar">@root</span>)
  <span class="ruby-ivar">@head</span> = <span class="ruby-constant">Head</span>.<span class="ruby-identifier">new</span>(<span class="ruby-identifier">method</span>(<span class="ruby-value">:get</span>))
<span class="ruby-keyword">end</span></pre>
          </div>
          
        </div>

</div>

</section>
  
     <section id="public-instance-5Buntitled-5D-method-details" class="method-section">
       <header>
         <h3>Public Instance Methods</h3>
       </header>

<div id="method-i-call" class="method-detail ">
        
        <div class="method-heading">
          <span class="method-name">call</span><span
            class="method-args">(env)</span>
          
          <span class="method-click-advice">click to toggle source</span>
          
        </div>

<div class="method-source-code" id="call-source">
            <pre><span class="ruby-comment"># File lib/rack/directory.rb, line 84</span>
<span class="ruby-keyword">def</span> <span class="ruby-identifier ruby-title">call</span>(<span class="ruby-identifier">env</span>)
  <span class="ruby-comment"># strip body if this is a HEAD call</span>
  <span class="ruby-ivar">@head</span>.<span class="ruby-identifier">call</span> <span class="ruby-identifier">env</span>
<span class="ruby-keyword">end</span></pre>
          </div>
          
        </div>

</div>

<div id="method-i-check_bad_request" class="method-detail ">
        
        <div class="method-heading">
          <span class="method-name">check_bad_request</span><span
            class="method-args">(path_info)</span>
          
          <span class="method-click-advice">click to toggle source</span>
          
        </div>

<div class="method-description">
          
          <p><a href="../Rack.html"><code>Rack</code></a> response to use for requests with invalid paths, or nil if path is valid.</p>

<div class="method-source-code" id="check_bad_request-source">
            <pre><span class="ruby-comment"># File lib/rack/directory.rb, line 104</span>
<span class="ruby-keyword">def</span> <span class="ruby-identifier ruby-title">check_bad_request</span>(<span class="ruby-identifier">path_info</span>)
  <span class="ruby-keyword">return</span> <span class="ruby-keyword">if</span> <span class="ruby-constant">Utils</span>.<span class="ruby-identifier">valid_path?</span>(<span class="ruby-identifier">path_info</span>)

<span class="ruby-identifier">body</span> = <span class="ruby-string">&quot;Bad Request\n&quot;</span>
  [<span class="ruby-value">400</span>, { <span class="ruby-constant">CONTENT_TYPE</span> <span class="ruby-operator">=&gt;</span> <span class="ruby-string">&quot;text/plain&quot;</span>,
    <span class="ruby-constant">CONTENT_LENGTH</span> <span class="ruby-operator">=&gt;</span> <span class="ruby-identifier">body</span>.<span class="ruby-identifier">bytesize</span>.<span class="ruby-identifier">to_s</span>,
    <span class="ruby-string">&quot;X-Cascade&quot;</span> <span class="ruby-operator">=&gt;</span> <span class="ruby-string">&quot;pass&quot;</span> }, [<span class="ruby-identifier">body</span>]]
<span class="ruby-keyword">end</span></pre>
          </div>
          
        </div>

</div>

<div id="method-i-check_forbidden" class="method-detail ">
        
        <div class="method-heading">
          <span class="method-name">check_forbidden</span><span
            class="method-args">(path_info)</span>
          
          <span class="method-click-advice">click to toggle source</span>
          
        </div>

<div class="method-description">
          
          <p><a href="../Rack.html"><code>Rack</code></a> response to use for requests with paths outside the root, or nil if path is inside the root.</p>

<div class="method-source-code" id="check_forbidden-source">
            <pre><span class="ruby-comment"># File lib/rack/directory.rb, line 114</span>
<span class="ruby-keyword">def</span> <span class="ruby-identifier ruby-title">check_forbidden</span>(<span class="ruby-identifier">path_info</span>)
  <span class="ruby-keyword">return</span> <span class="ruby-keyword">unless</span> <span class="ruby-identifier">path_info</span>.<span class="ruby-identifier">include?</span> <span class="ruby-string">&quot;..&quot;</span>

<span class="ruby-identifier">expanded_path</span> = <span class="ruby-operator">::</span><span class="ruby-constant">File</span>.<span class="ruby-identifier">expand_path</span>(<span class="ruby-operator">::</span><span class="ruby-constant">File</span>.<span class="ruby-identifier">join</span>(<span class="ruby-ivar">@root</span>, <span class="ruby-identifier">path_info</span>))
  <span class="ruby-keyword">return</span> <span class="ruby-keyword">if</span> <span class="ruby-identifier">expanded_path</span> <span class="ruby-operator">==</span> <span class="ruby-ivar">@root</span> <span class="ruby-operator">||</span> <span class="ruby-identifier">expanded_path</span>.<span class="ruby-identifier">start_with?</span>(<span class="ruby-ivar">@root_with_separator</span>)

<span class="ruby-identifier">body</span> = <span class="ruby-string">&quot;Forbidden\n&quot;</span>
  [<span class="ruby-value">403</span>, { <span class="ruby-constant">CONTENT_TYPE</span> <span class="ruby-operator">=&gt;</span> <span class="ruby-string">&quot;text/plain&quot;</span>,
    <span class="ruby-constant">CONTENT_LENGTH</span> <span class="ruby-operator">=&gt;</span> <span class="ruby-identifier">body</span>.<span class="ruby-identifier">bytesize</span>.<span class="ruby-identifier">to_s</span>,
    <span class="ruby-string">&quot;X-Cascade&quot;</span> <span class="ruby-operator">=&gt;</span> <span class="ruby-string">&quot;pass&quot;</span> }, [<span class="ruby-identifier">body</span>]]
<span class="ruby-keyword">end</span></pre>
          </div>
          
        </div>

</div>

<div id="method-i-entity_not_found" class="method-detail ">
        
        <div class="method-heading">
          <span class="method-name">entity_not_found</span><span
            class="method-args">(path_info)</span>
          
          <span class="method-click-advice">click to toggle source</span>
          
        </div>

<div class="method-description">
          
          <p><a href="../Rack.html"><code>Rack</code></a> response to use for unreadable and non-file, non-directory entries.</p>

<div class="method-source-code" id="entity_not_found-source">
            <pre><span class="ruby-comment"># File lib/rack/directory.rb, line 178</span>
<span class="ruby-keyword">def</span> <span class="ruby-identifier ruby-title">entity_not_found</span>(<span class="ruby-identifier">path_info</span>)
  <span class="ruby-identifier">body</span> = <span class="ruby-node">&quot;Entity not found: #{path_info}\n&quot;</span>
  [<span class="ruby-value">404</span>, { <span class="ruby-constant">CONTENT_TYPE</span> <span class="ruby-operator">=&gt;</span> <span class="ruby-string">&quot;text/plain&quot;</span>,
    <span class="ruby-constant">CONTENT_LENGTH</span> <span class="ruby-operator">=&gt;</span> <span class="ruby-identifier">body</span>.<span class="ruby-identifier">bytesize</span>.<span class="ruby-identifier">to_s</span>,
    <span class="ruby-string">&quot;X-Cascade&quot;</span> <span class="ruby-operator">=&gt;</span> <span class="ruby-string">&quot;pass&quot;</span> }, [<span class="ruby-identifier">body</span>]]
<span class="ruby-keyword">end</span></pre>
          </div>
          
        </div>

</div>

<div id="method-i-filesize_format" class="method-detail ">
        
        <div class="method-heading">
          <span class="method-name">filesize_format</span><span
            class="method-args">(int)</span>
          
          <span class="method-click-advice">click to toggle source</span>
          
        </div>

<div class="method-description">
          
          <p>Provide human readable file sizes</p>

<div class="method-source-code" id="filesize_format-source">
            <pre><span class="ruby-comment"># File lib/rack/directory.rb, line 194</span>
<span class="ruby-keyword">def</span> <span class="ruby-identifier ruby-title">filesize_format</span>(<span class="ruby-identifier">int</span>)
  <span class="ruby-constant">FILESIZE_FORMAT</span>.<span class="ruby-identifier">each</span> <span class="ruby-keyword">do</span> <span class="ruby-operator">|</span><span class="ruby-identifier">format</span>, <span class="ruby-identifier">size</span><span class="ruby-operator">|</span>
    <span class="ruby-keyword">return</span> <span class="ruby-identifier">format</span> <span class="ruby-operator">%</span> (<span class="ruby-identifier">int</span>.<span class="ruby-identifier">to_f</span> <span class="ruby-operator">/</span> <span class="ruby-identifier">size</span>) <span class="ruby-keyword">if</span> <span class="ruby-identifier">int</span> <span class="ruby-operator">&gt;=</span> <span class="ruby-identifier">size</span>
  <span class="ruby-keyword">end</span>

</div>

<div id="method-i-get" class="method-detail ">
        
        <div class="method-heading">
          <span class="method-name">get</span><span
            class="method-args">(env)</span>
          
          <span class="method-click-advice">click to toggle source</span>
          
        </div>

<div class="method-description">
          
          <p>Internals of request handling.  Similar to call but does not remove body for HEAD requests.</p>

<div class="method-source-code" id="get-source">
            <pre><span class="ruby-comment"># File lib/rack/directory.rb, line 91</span>
<span class="ruby-keyword">def</span> <span class="ruby-identifier ruby-title">get</span>(<span class="ruby-identifier">env</span>)
  <span class="ruby-identifier">script_name</span> = <span class="ruby-identifier">env</span>[<span class="ruby-constant">SCRIPT_NAME</span>]
  <span class="ruby-identifier">path_info</span> = <span class="ruby-constant">Utils</span>.<span class="ruby-identifier">unescape_path</span>(<span class="ruby-identifier">env</span>[<span class="ruby-constant">PATH_INFO</span>])

<span class="ruby-keyword">if</span> <span class="ruby-identifier">client_error_response</span> = <span class="ruby-identifier">check_bad_request</span>(<span class="ruby-identifier">path_info</span>) <span class="ruby-operator">||</span> <span class="ruby-identifier">check_forbidden</span>(<span class="ruby-identifier">path_info</span>)
    <span class="ruby-identifier">client_error_response</span>
  <span class="ruby-keyword">else</span>
    <span class="ruby-identifier">path</span> = <span class="ruby-operator">::</span><span class="ruby-constant">File</span>.<span class="ruby-identifier">join</span>(<span class="ruby-ivar">@root</span>, <span class="ruby-identifier">path_info</span>)
    <span class="ruby-identifier">list_path</span>(<span class="ruby-identifier">env</span>, <span class="ruby-identifier">path</span>, <span class="ruby-identifier">path_info</span>, <span class="ruby-identifier">script_name</span>)
  <span class="ruby-keyword">end</span>
<span class="ruby-keyword">end</span></pre>
          </div>
          
        </div>

</div>

<div id="method-i-list_directory" class="method-detail ">
        
        <div class="method-heading">
          <span class="method-name">list_directory</span><span
            class="method-args">(path_info, path, script_name)</span>
          
          <span class="method-click-advice">click to toggle source</span>
          
        </div>

<div class="method-description">
          
          <p><a href="../Rack.html"><code>Rack</code></a> response to use for directories under the root.</p>

<div class="method-source-code" id="list_directory-source">
            <pre><span class="ruby-comment"># File lib/rack/directory.rb, line 127</span>
<span class="ruby-keyword">def</span> <span class="ruby-identifier ruby-title">list_directory</span>(<span class="ruby-identifier">path_info</span>, <span class="ruby-identifier">path</span>, <span class="ruby-identifier">script_name</span>)
  <span class="ruby-identifier">url_head</span> = (<span class="ruby-identifier">script_name</span>.<span class="ruby-identifier">split</span>(<span class="ruby-string">&#39;/&#39;</span>) <span class="ruby-operator">+</span> <span class="ruby-identifier">path_info</span>.<span class="ruby-identifier">split</span>(<span class="ruby-string">&#39;/&#39;</span>)).<span class="ruby-identifier">map</span> <span class="ruby-keyword">do</span> <span class="ruby-operator">|</span><span class="ruby-identifier">part</span><span class="ruby-operator">|</span>
    <span class="ruby-constant">Utils</span>.<span class="ruby-identifier">escape_path</span> <span class="ruby-identifier">part</span>
  <span class="ruby-keyword">end</span>

<span class="ruby-comment"># Globbing not safe as path could contain glob metacharacters</span>
  <span class="ruby-identifier">body</span> = <span class="ruby-constant">DirectoryBody</span>.<span class="ruby-identifier">new</span>(<span class="ruby-ivar">@root</span>, <span class="ruby-identifier">path</span>, <span class="ruby-operator">-&gt;</span>(<span class="ruby-identifier">basename</span>) <span class="ruby-keyword">do</span>
    <span class="ruby-identifier">stat</span> = <span class="ruby-identifier">stat</span>(<span class="ruby-operator">::</span><span class="ruby-constant">File</span>.<span class="ruby-identifier">join</span>(<span class="ruby-identifier">path</span>, <span class="ruby-identifier">basename</span>))
    <span class="ruby-keyword">next</span> <span class="ruby-keyword">unless</span> <span class="ruby-identifier">stat</span>

<span class="ruby-identifier">url</span> = <span class="ruby-operator">::</span><span class="ruby-constant">File</span>.<span class="ruby-identifier">join</span>(<span class="ruby-operator">*</span><span class="ruby-identifier">url_head</span> <span class="ruby-operator">+</span> [<span class="ruby-constant">Utils</span>.<span class="ruby-identifier">escape_path</span>(<span class="ruby-identifier">basename</span>)])
    <span class="ruby-identifier">mtime</span> = <span class="ruby-identifier">stat</span>.<span class="ruby-identifier">mtime</span>.<span class="ruby-identifier">httpdate</span>
    <span class="ruby-keyword">if</span> <span class="ruby-identifier">stat</span>.<span class="ruby-identifier">directory?</span>
      <span class="ruby-identifier">type</span> = <span class="ruby-string">&#39;directory&#39;</span>
      <span class="ruby-identifier">size</span> = <span class="ruby-string">&#39;-&#39;</span>
      <span class="ruby-identifier">url</span> <span class="ruby-operator">&lt;&lt;</span> <span class="ruby-string">&#39;/&#39;</span>
      <span class="ruby-keyword">if</span> <span class="ruby-identifier">basename</span> <span class="ruby-operator">==</span> <span class="ruby-string">&#39;..&#39;</span>
        <span class="ruby-identifier">basename</span> = <span class="ruby-string">&#39;Parent Directory&#39;</span>
      <span class="ruby-keyword">else</span>
        <span class="ruby-identifier">basename</span> <span class="ruby-operator">&lt;&lt;</span> <span class="ruby-string">&#39;/&#39;</span>
      <span class="ruby-keyword">end</span>
    <span class="ruby-keyword">else</span>
      <span class="ruby-identifier">type</span> = <span class="ruby-constant">Mime</span>.<span class="ruby-identifier">mime_type</span>(<span class="ruby-operator">::</span><span class="ruby-constant">File</span>.<span class="ruby-identifier">extname</span>(<span class="ruby-identifier">basename</span>))
      <span class="ruby-identifier">size</span> = <span class="ruby-identifier">filesize_format</span>(<span class="ruby-identifier">stat</span>.<span class="ruby-identifier">size</span>)
    <span class="ruby-keyword">end</span>

[ <span class="ruby-identifier">url</span>, <span class="ruby-identifier">basename</span>, <span class="ruby-identifier">size</span>, <span class="ruby-identifier">type</span>, <span class="ruby-identifier">mtime</span> ]
  <span class="ruby-keyword">end</span>)

[ <span class="ruby-value">200</span>, { <span class="ruby-constant">CONTENT_TYPE</span> <span class="ruby-operator">=&gt;</span> <span class="ruby-string">&#39;text/html; charset=utf-8&#39;</span> }, <span class="ruby-identifier">body</span> ]
<span class="ruby-keyword">end</span></pre>
          </div>
          
        </div>

</div>

<div id="method-i-list_path" class="method-detail ">
        
        <div class="method-heading">
          <span class="method-name">list_path</span><span
            class="method-args">(env, path, path_info, script_name)</span>
          
          <span class="method-click-advice">click to toggle source</span>
          
        </div>

<div class="method-description">
          
          <p><a href="../Rack.html"><code>Rack</code></a> response to use for files and directories under the root. Unreadable and non-file, non-directory entries will get a 404 response.</p>

<div class="method-source-code" id="list_path-source">
            <pre><span class="ruby-comment"># File lib/rack/directory.rb, line 168</span>
<span class="ruby-keyword">def</span> <span class="ruby-identifier ruby-title">list_path</span>(<span class="ruby-identifier">env</span>, <span class="ruby-identifier">path</span>, <span class="ruby-identifier">path_info</span>, <span class="ruby-identifier">script_name</span>)
  <span class="ruby-keyword">if</span> (<span class="ruby-identifier">stat</span> = <span class="ruby-identifier">stat</span>(<span class="ruby-identifier">path</span>)) <span class="ruby-operator">&amp;&amp;</span> <span class="ruby-identifier">stat</span>.<span class="ruby-identifier">readable?</span>
    <span class="ruby-keyword">return</span> <span class="ruby-ivar">@app</span>.<span class="ruby-identifier">call</span>(<span class="ruby-identifier">env</span>) <span class="ruby-keyword">if</span> <span class="ruby-identifier">stat</span>.<span class="ruby-identifier">file?</span>
    <span class="ruby-keyword">return</span> <span class="ruby-identifier">list_directory</span>(<span class="ruby-identifier">path_info</span>, <span class="ruby-identifier">path</span>, <span class="ruby-identifier">script_name</span>) <span class="ruby-keyword">if</span> <span class="ruby-identifier">stat</span>.<span class="ruby-identifier">directory?</span>
  <span class="ruby-keyword">end</span>

<span class="ruby-identifier">entity_not_found</span>(<span class="ruby-identifier">path_info</span>)
<span class="ruby-keyword">end</span></pre>
          </div>
          
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</div>

<div id="method-i-stat" class="method-detail ">
        
        <div class="method-heading">
          <span class="method-name">stat</span><span
            class="method-args">(path)</span>
          
          <span class="method-click-advice">click to toggle source</span>
          
        </div>

<div class="method-description">
          
          <p>File::Stat for the given path, but return nil for missing/bad entries.</p>

<div class="method-source-code" id="stat-source">
            <pre><span class="ruby-comment"># File lib/rack/directory.rb, line 160</span>
<span class="ruby-keyword">def</span> <span class="ruby-identifier ruby-title">stat</span>(<span class="ruby-identifier">path</span>)
  <span class="ruby-operator">::</span><span class="ruby-constant">File</span>.<span class="ruby-identifier">stat</span>(<span class="ruby-identifier">path</span>)
<span class="ruby-keyword">rescue</span> <span class="ruby-constant">Errno</span><span class="ruby-operator">::</span><span class="ruby-constant">ENOENT</span>, <span class="ruby-constant">Errno</span><span class="ruby-operator">::</span><span class="ruby-constant">ELOOP</span>
  <span class="ruby-keyword">return</span> <span class="ruby-keyword">nil</span>
<span class="ruby-keyword">end</span></pre>
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