Class: ActionDispatch::Static

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

Overview

This middleware will attempt to return the contents of a file’s body from disk in the response. If a file is not found on disk, the request will be delegated to the application stack. This middleware is commonly initialized to serve assets from a server’s ‘public/` directory.

This middleware verifies the path to ensure that only files living in the root directory can be rendered. A request cannot produce a directory traversal using this middleware. Only ‘GET’ and ‘HEAD’ requests will result in a file being returned.

Instance Method Summary collapse

Constructor Details

#initialize(app, path, index: "index", headers: {}) ⇒ Static

Returns a new instance of Static.



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# File 'lib/action_dispatch/middleware/static.rb', line 109

def initialize(app, path, index: "index", headers: {})
  @app = app
  @file_handler = FileHandler.new(path, index: index, headers: headers)
end

Instance Method Details

#call(env) ⇒ Object 



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# File 'lib/action_dispatch/middleware/static.rb', line 114

def call(env)
  req = Rack::Request.new env

  if req.get? || req.head?
    path = req.path_info.chomp("/".freeze)
    if match = @file_handler.match?(path)
      req.path_info = match
      return @file_handler.serve(req)
    end
  end

  @app.call(req.env)
end