Implement login & logout functionality

[edigu]

Implement a login, & logout functionality while following best-practices and document it.

• Login
• Logout
• Forgot password (Password reset)
• Registration
• Change password (for logged-in users)
• Change email address (for logged-in users, requires confirmation process for new email address)

Forms, Fieldsets

• Create a UserFieldset and implement InputFilterProviderInterface inside.
• Create a simple registration form.
• Create a simple login form.
• Demonstrate captcha usage on login form.
• Utilize DoctrineObject hydrator.

Service Layer

• Create a RegistrationService with following public interfaces:
  • createUser(array $data)
  • updateUserById($userId, $data)
  • login($email, $password, $rememberMe = false)
  • logout()
• Sending emails to reset password requires email service provider. Think about it.
• Create an AuthenticationService class, properly utilize zend-authentication library.
• Authentication service should support different auth adapters by configuration.
• Create a UserService with getUserById($id) and getUserByEmailAddress($email) public interfaces.

  Other

• Handle sessions properly
• Think about future improvements (for example signing-in by facebook, google accounts..)