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.
Stolen from Ramaze
# File lib/rack/directory.rb, line 45 def initialize(root, app=nil) @root = F.expand_path(root) @app = app || Rack::File.new(@root) end
# 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
# File lib/rack/directory.rb, line 50 def call(env) dup._call(env) end
# 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
# File lib/rack/directory.rb, line 133 def each show_path = @path.sub(%r^#{@root}/,'') files = @files.map{|f| DIR_FILE % f }*"\n" page = DIR_PAGE % [ show_path, show_path , files ] page.each_line{|l| yield l } end
# File lib/rack/directory.rb, line 125 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
# File lib/rack/directory.rb, line 149 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
# File lib/rack/directory.rb, line 79 def list_directory @files = [['../','Parent Directory','','','']] glob = F.join(@path, '*') Dir[glob].sort.each do |node| stat = stat(node) next unless stat basename = F.basename(node) ext = F.extname(node) url = F.join(@script_name, @path_info, 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
TODO: add correct response if not readable, not sure if 404 is the best
option
# File lib/rack/directory.rb, line 111 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
# File lib/rack/directory.rb, line 103 def stat(node, max = 10) F.stat(node) rescue Errno::ENOENT, Errno::ELOOP return nil end