1: <?php
 2: 
 3: /**
 4:  * This file is part of the Nette Framework (https://nette.org)
 5:  * Copyright (c) 2004 David Grudl (http://davidgrudl.com)
 6:  * @package Nette\Security
 7:  */
 8: 
 9: 
10: 
11: /**
12:  * Performs authentication.
13:  *
14:  * @author     David Grudl
15:  * @package Nette\Security
16:  */
17: interface IAuthenticator
18: {
19:     /** Credential key */
20:     const USERNAME = 0,
21:         PASSWORD = 1;
22: 
23:     /** Exception error code */
24:     const IDENTITY_NOT_FOUND = 1,
25:         INVALID_CREDENTIAL = 2,
26:         FAILURE = 3,
27:         NOT_APPROVED = 4;
28: 
29:     /**
30:      * Performs an authentication against e.g. database.
31:      * and returns IIdentity on success or throws NAuthenticationException
32:      * @return IIdentity
33:      * @throws NAuthenticationException
34:      */
35:     function authenticate(array $credentials);
36: 
37: }
38: