Class: Rack::Directory

Inherits:
Object show all
Defined in:
lib/gems/rack-0.4.0/lib/rack/directory.rb

Overview

Rack::Directory serves entries below the root given, according to the path info of the Rack request. If a directory is found, the file’s contents will be presented in an html based index. If a file is found, the env will be passed to the specified app.

If app is not specified, a Rack::File of the same root will be used.

Constant Summary collapse

DIR_FILE = 
"<tr><td class='name'><a href='%s'>%s</a></td><td class='size'>%s</td><td class='type'>%s</td><td class='mtime'>%s</td></tr>"
DIR_PAGE = 
<<-PAGE
<html><head>
  <title>%s</title>
  <style type='text/css'>
table { width:100%%; }
.name { text-align:left; }
.size, .mtime { text-align:right; }
  </style>
</head><body>
<h1>%s</h1>
<hr />
<table>
  <tr>
<th class='name'>Name</th>
<th class='size'>Size</th>
<th class='type'>Type</th>
<th class='mtime'>Last Modified</th>
  </tr>
%s
</table>
<hr />
</body></html>
PAGE
F = 
::File
MIME_TYPES =

From WEBrick.

{
  "ai"    => "application/postscript",
  "asc"   => "text/plain",
  "avi"   => "video/x-msvideo",
  "bin"   => "application/octet-stream",
  "bmp"   => "image/bmp",
  "class" => "application/octet-stream",
  "cer"   => "application/pkix-cert",
  "crl"   => "application/pkix-crl",
  "crt"   => "application/x-x509-ca-cert",
 #"crl"   => "application/x-pkcs7-crl",
  "css"   => "text/css",
  "dms"   => "application/octet-stream",
  "doc"   => "application/msword",
  "dvi"   => "application/x-dvi",
  "eps"   => "application/postscript",
  "etx"   => "text/x-setext",
  "exe"   => "application/octet-stream",
  "gif"   => "image/gif",
  "htm"   => "text/html",
  "html"  => "text/html",
  "jpe"   => "image/jpeg",
  "jpeg"  => "image/jpeg",
  "jpg"   => "image/jpeg",
  "js"    => "text/javascript",
  "lha"   => "application/octet-stream",
  "lzh"   => "application/octet-stream",
  "mov"   => "video/quicktime",
  "mpe"   => "video/mpeg",
  "mpeg"  => "video/mpeg",
  "mpg"   => "video/mpeg",
  "pbm"   => "image/x-portable-bitmap",
  "pdf"   => "application/pdf",
  "pgm"   => "image/x-portable-graymap",
  "png"   => "image/png",
  "pnm"   => "image/x-portable-anymap",
  "ppm"   => "image/x-portable-pixmap",
  "ppt"   => "application/vnd.ms-powerpoint",
  "ps"    => "application/postscript",
  "qt"    => "video/quicktime",
  "ras"   => "image/x-cmu-raster",
  "rb"    => "text/plain",
  "rd"    => "text/plain",
  "rtf"   => "application/rtf",
  "sgm"   => "text/sgml",
  "sgml"  => "text/sgml",
  "tif"   => "image/tiff",
  "tiff"  => "image/tiff",
  "txt"   => "text/plain",
  "xbm"   => "image/x-xbitmap",
  "xls"   => "application/vnd.ms-excel",
  "xml"   => "text/xml",
  "xpm"   => "image/x-xpixmap",
  "xwd"   => "image/x-xwindowdump",
  "zip"   => "application/zip",
}

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(root, app = nil) ⇒ Directory

Returns a new instance of Directory.



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# File 'lib/gems/rack-0.4.0/lib/rack/directory.rb', line 40

def initialize(root, app=nil)
  @root = root
  @app = app
  unless defined? @app
    @app = Rack::File.new(@root)
  end
end

Instance Attribute Details

#files ⇒ Object (readonly)

Returns the value of attribute files.



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# File 'lib/gems/rack-0.4.0/lib/rack/directory.rb', line 37

def files
  @files
end

#path ⇒ Object

Returns the value of attribute path.



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# File 'lib/gems/rack-0.4.0/lib/rack/directory.rb', line 38

def path
  @path
end

#root ⇒ Object

Returns the value of attribute root.



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# File 'lib/gems/rack-0.4.0/lib/rack/directory.rb', line 38

def root
  @root
end

Instance Method Details

#_call(env) ⇒ Object 



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# File 'lib/gems/rack-0.4.0/lib/rack/directory.rb', line 54

def _call(env)
  if env["PATH_INFO"].include? ".."
    body = "Forbidden\n"
    size = body.respond_to?(:bytesize) ? body.bytesize : body.size
    return [403, {"Content-Type" => "text/plain","Content-Length" => size.to_s}, [body]]
  end

  @path = F.join(@root, Utils.unescape(env['PATH_INFO']))

  if F.exist?(@path) and F.readable?(@path)
    if F.file?(@path)
      return @app.call(env)
    elsif F.directory?(@path)
      @files = [['../','Parent Directory','','','']]
      sName, pInfo = env.values_at('SCRIPT_NAME', 'PATH_INFO')
      Dir.entries(@path).sort.each do |file|
        next if file[0] == ?.
        fl    = F.join(@path, file)
        sz    = F.size(fl)
        url   = F.join(sName, pInfo, file)
        type  = F.directory?(fl) ? 'directory' :
          MIME_TYPES.fetch(F.extname(file)[1..-1],'unknown')
        size  = (type!='directory' ? (sz<10240 ? "#{sz}B" : "#{sz/1024}KB") : '-')
        mtime = F.mtime(fl).httpdate
        @files << [ url, file, size, type, mtime ]
      end
      return [ 200, {'Content-Type'=>'text/html'}, self ]
    end
  end

  body = "Entity not found: #{env["PATH_INFO"]}\n"
  size = body.respond_to?(:bytesize) ? body.bytesize : body.size
  return [404, {"Content-Type" => "text/plain", "Content-Length" => size.to_s}, [body]]
end

#call(env) ⇒ Object 



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# File 'lib/gems/rack-0.4.0/lib/rack/directory.rb', line 48

def call(env)
  dup._call(env)
end

#each ⇒ Object 



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# File 'lib/gems/rack-0.4.0/lib/rack/directory.rb', line 89

def each
  show_path = @path.sub(/^#{@root}/,'')
  files = @files.map{|f| DIR_FILE % f }*"\n"
  page  = DIR_PAGE % [ show_path, show_path , files ]
  page.each_line{|l| yield l }
end

#each_entry ⇒ Object 



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# File 'lib/gems/rack-0.4.0/lib/rack/directory.rb', line 96

def each_entry
  @files.each{|e| yield e }
end