Class: Pancake::Middlewares::Static

Inherits:
Object
  • Object
show all
Defined in:
lib/pancake/middlewares/static.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(app, stack) ⇒ Static

Returns a new instance of Static.



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# File 'lib/pancake/middlewares/static.rb', line 5

def initialize(app, stack)
  @app, @stack = app, stack
  unless Pancake::Paths === stack
    raise "#{self.class} needs to be initialized with a stack (or something including Pancake::Paths)"
  end
end

Instance Attribute Details

#app ⇒ Object

Returns the value of attribute app.



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# File 'lib/pancake/middlewares/static.rb', line 4

def app
  @app
end

#stack ⇒ Object

Returns the value of attribute stack.



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# File 'lib/pancake/middlewares/static.rb', line 4

def stack
  @stack
end

Instance Method Details

#call(env) ⇒ Object 



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# File 'lib/pancake/middlewares/static.rb', line 12

def call(env)
  static_file = nil
  root = stack.dirs_for(:public).detect do |root|
    root = File.expand_path(root)
    file_name = Rack::Utils.unescape(File.expand_path(File.join(root, env['PATH_INFO'].chomp("/"))))

    # If the client is asking for files outside the public directory, return missing
    # i.e. get "/../../foo.secret"
    if file_name !~ /^#{root}/
      return Rack::Response.new("Not Found", 404).finish
    end

    # If we get to here and the file exists serve it
    if File.file?(file_name)
      static_file = file_name
    end
  end

  if static_file
    Rack::Response.new(File.open(static_file), 200, {
      'Content-Type' => Rack::Mime.mime_type(File.extname(static_file))
    }).finish
  else
    app.call(env)
  end
end