Class: Aker::Form::Middleware::LoginRenderer

Inherits:

Object

• Object
• Aker::Form::Middleware::LoginRenderer

Includes:

LoginFormAssetProvider, Rack::ConfigurationHelper

Defined in:

lib/aker/form/middleware/login_renderer.rb

Overview

Rack middleware used by Aker::Form::Mode to render an HTML login form.

This middleware implements half of the form login process. The other half is implemented by LoginResponder.

Author:

• David Yip

Instance Method Summary

• #call(env) ⇒ Object

  Rack entry point.

• #initialize(app) ⇒ LoginRenderer constructor

  Instantiates the middleware.

Methods included from Rack::ConfigurationHelper

#login_path, #logout_path

Methods included from Rack::EnvironmentHelper

#authority, #configuration, #interactive?

Methods included from LoginFormAssetProvider

#asset_root, #login_css, #login_html

Constructor Details

#initialize(app) ⇒ LoginRenderer

Instantiates the middleware.

Parameters:

• app (Rack app) —

  The Rack application on which this middleware should be layered.

• login_path (String) —

  the login path

# File 'lib/aker/form/middleware/login_renderer.rb', line 22

def initialize(app)
  @app = app
end

Instance Method Details

#call(env) ⇒ Object

Rack entry point.

‘call` returns one of three responses, depending on the path and method.

• If the method is GET and the path is ‘login_path`, `call` returns an HTML form for submitting a username and password.

• If the method is GET and the path is ‘login_path + “/login.css”`, `call` returns the CSS for the aforementioned form.

• Otherwise, ‘call` passes the request down through the Rack stack.

Returns:

• a finished Rack response

# File 'lib/aker/form/middleware/login_renderer.rb', line 39

def call(env)
  case [env['REQUEST_METHOD'], env['PATH_INFO']]
    when ['GET', login_path(env)];                provide_login_html(env)
    when ['GET', login_path(env) + '/login.css']; provide_login_css
    else                                          @app.call(env)
  end
end