class ActionDispatch::FileHandler

Constants

PATH_SEPS

Public Class Methods

new(root, cache_control) click to toggle source
# File lib/action_dispatch/middleware/static.rb, line 5
def initialize(root, cache_control)
  @root          = root.chomp('/')
  @compiled_root = /^#{Regexp.escape(root)}/
  headers = cache_control && { 'Cache-Control' => cache_control }
  @file_server   = ::Rack::File.new(@root, headers)
end

Public Instance Methods

call(env) click to toggle source
# File lib/action_dispatch/middleware/static.rb, line 26
def call(env)
  @file_server.call(env)
end
escape_glob_chars(path) click to toggle source
# File lib/action_dispatch/middleware/static.rb, line 41
def escape_glob_chars(path)
  path.force_encoding('binary') if path.respond_to? :force_encoding
  path.gsub(/[*?{}\[\]\]/, "\\\\\\&")
end
ext() click to toggle source
# File lib/action_dispatch/middleware/static.rb, line 30
def ext
  @ext ||= begin
    ext = ::ActionController::Base.page_cache_extension
    "{,#{ext},/index#{ext}}"
  end
end
match?(path) click to toggle source
# File lib/action_dispatch/middleware/static.rb, line 12
def match?(path)
  path = path.dup

  full_path = path.empty? ? @root : File.join(@root, escape_glob_chars(clean_path_info(unescape_path(path))))
  paths = "#{full_path}#{ext}"

  matches = Dir[paths]
  match = matches.detect { |m| File.file?(m) && File.readable?(m) }
  if match
    match.sub!(@compiled_root, '')
    ::Rack::Utils.escape(match)
  end
end
unescape_path(path) click to toggle source
# File lib/action_dispatch/middleware/static.rb, line 37
def unescape_path(path)
  URI.parser.unescape(path)
end

Private Instance Methods

clean_path_info(path_info) click to toggle source
# File lib/action_dispatch/middleware/static.rb, line 50
def clean_path_info(path_info)
  path_info.force_encoding('binary') if path_info.respond_to? :force_encoding
  parts = path_info.split PATH_SEPS

  clean = []

  parts.each do |part|
    next if part.empty? || part == '.'
    part == '..' ? clean.pop : clean << part
  end

  clean.unshift '/' if parts.empty? || parts.first.empty?

  ::File.join(*clean)
end