Class: ActionDispatch::FileHandler

Inherits:
Object
  • Object
show all
Defined in:
lib/action_dispatch/middleware/static.rb

Instance Method Summary collapse

Constructor Details

#initialize(root, cache_control) ⇒ FileHandler

Returns a new instance of FileHandler.



6
7
8
9
10
11
 
# File 'lib/action_dispatch/middleware/static.rb', line 6

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

Instance Method Details

#call(env) ⇒ Object 



28
29
30
 
# File 'lib/action_dispatch/middleware/static.rb', line 28

def call(env)
  @file_server.call(env)
end

#escape_glob_chars(path) ⇒ Object 



43
44
45
 
# File 'lib/action_dispatch/middleware/static.rb', line 43

def escape_glob_chars(path)
  path.gsub(/[*?{}\[\]]/, "\\\\\\&")
end

#ext ⇒ Object 



32
33
34
35
36
37
 
# File 'lib/action_dispatch/middleware/static.rb', line 32

def ext
  @ext ||= begin
    ext = ::ActionController::Base.default_static_extension
    "{,#{ext},/index#{ext}}"
  end
end

#match?(path) ⇒ Boolean

Returns:

  • (Boolean) 


13
14
15
16
17
18
19
20
21
22
23
24
25
26
 
# File 'lib/action_dispatch/middleware/static.rb', line 13

def match?(path)
  path = unescape_path(path)
  return false unless path.valid_encoding?

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

  matches = Dir[paths]
  match = matches.detect { |m| File.file?(m) }
  if match
    match.sub!(@compiled_root, '')
    ::Rack::Utils.escape(match)
  end
end

#unescape_path(path) ⇒ Object 



39
40
41
 
# File 'lib/action_dispatch/middleware/static.rb', line 39

def unescape_path(path)
  URI.parser.unescape(path)
end