Parent

Rack::Directory

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.

Constants

DIR_FILE
DIR_PAGE
F
FILESIZE_FORMAT

Stolen from Ramaze

Attributes

files[R]
path[RW]
root[RW]

Public Class Methods

new(root, app=nil) click to toggle source
# File lib/rack/directory.rb, line 45
def initialize(root, app=nil)
  @root = F.expand_path(root)
  @app = app || Rack::File.new(@root)
end

Public Instance Methods

_call(env) click to toggle source
# File lib/rack/directory.rb, line 56
def _call(env)
  @env = env
  @script_name = env['SCRIPT_NAME']
  @path_info = Utils.unescape(env['PATH_INFO'])

  if forbidden = check_forbidden
    forbidden
  else
    @path = F.join(@root, @path_info)
    list_path
  end
end
call(env) click to toggle source
# File lib/rack/directory.rb, line 50
def call(env)
  dup._call(env)
end
check_forbidden() click to toggle source
# File lib/rack/directory.rb, line 69
def check_forbidden
  return unless @path_info.include? ".."

  body = "Forbidden\n"
  size = Rack::Utils.bytesize(body)
  return [403, {"Content-Type" => "text/plain",
    "Content-Length" => size.to_s,
    "X-Cascade" => "pass"}, [body]]
end
each() click to toggle source
# File lib/rack/directory.rb, line 137
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
entity_not_found() click to toggle source
# File lib/rack/directory.rb, line 129
def entity_not_found
  body = "Entity not found: #{@path_info}\n"
  size = Rack::Utils.bytesize(body)
  return [404, {"Content-Type" => "text/plain",
    "Content-Length" => size.to_s,
    "X-Cascade" => "pass"}, [body]]
end
filesize_format(int) click to toggle source
# File lib/rack/directory.rb, line 153
def filesize_format(int)
  FILESIZE_FORMAT.each do |format, size|
    return format % (int.to_f / size) if int >= size
  end

  int.to_s + 'B'
end
list_directory() click to toggle source
# File lib/rack/directory.rb, line 79
def list_directory
  @files = [['../','Parent Directory','','','']]
  glob = F.join(@path, '*')

  url_head = (@script_name.split('/') + @path_info.split('/')).map do |part|
    Rack::Utils.escape part
  end

  Dir[glob].sort.each do |node|
    stat = stat(node)
    next  unless stat
    basename = F.basename(node)
    ext = F.extname(node)

    url = F.join(*url_head + [Rack::Utils.escape(basename)])
    size = stat.size
    type = stat.directory? ? 'directory' : Mime.mime_type(ext)
    size = stat.directory? ? '-' : filesize_format(size)
    mtime = stat.mtime.httpdate
    url << '/'  if stat.directory?
    basename << '/'  if stat.directory?

    @files << [ url, basename, size, type, mtime ]
  end

  return [ 200, {'Content-Type'=>'text/html; charset=utf-8'}, self ]
end
list_path() click to toggle source

TODO: add correct response if not readable, not sure if 404 is the best

option
# File lib/rack/directory.rb, line 115
def list_path
  @stat = F.stat(@path)

  if @stat.readable?
    return @app.call(@env) if @stat.file?
    return list_directory if @stat.directory?
  else
    raise Errno::ENOENT, 'No such file or directory'
  end

rescue Errno::ENOENT, Errno::ELOOP
  return entity_not_found
end
stat(node, max = 10) click to toggle source
# File lib/rack/directory.rb, line 107
def stat(node, max = 10)
  F.stat(node)
rescue Errno::ENOENT, Errno::ELOOP
  return nil
end

[Validate]

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