1: <?php
 2: 
 3: /**
 4:  * This file is part of the Nette Framework (https://nette.org)
 5:  *
 6:  * Copyright (c) 2004 David Grudl (http://davidgrudl.com)
 7:  *
 8:  * For the full copyright and license information, please view
 9:  * the file license.txt that was distributed with this source code.
10:  * @package Nette\Security
11:  */
12: 
13: 
14: 
15: /**
16:  * Trivial implementation of IAuthenticator.
17:  *
18:  * @author     David Grudl
19:  * @package Nette\Security
20:  */
21: class NSimpleAuthenticator extends NObject implements IAuthenticator
22: {
23:     /** @var array */
24:     private $userlist;
25: 
26: 
27:     /**
28:      * @param  array  list of usernames and passwords
29:      */
30:     public function __construct(array $userlist)
31:     {
32:         $this->userlist = $userlist;
33:     }
34: 
35: 
36: 
37:     /**
38:      * Performs an authentication against e.g. database.
39:      * and returns IIdentity on success or throws NAuthenticationException
40:      * @param  array
41:      * @return IIdentity
42:      * @throws NAuthenticationException
43:      */
44:     public function authenticate(array $credentials)
45:     {
46:         $username = $credentials[self::USERNAME];
47:         foreach ($this->userlist as $name => $pass) {
48:             if (strcasecmp($name, $credentials[self::USERNAME]) === 0) {
49:                 if (strcasecmp($pass, $credentials[self::PASSWORD]) === 0) {
50:                     // matched!
51:                     return new NIdentity($name);
52:                 }
53: 
54:                 throw new NAuthenticationException("Invalid password.", self::INVALID_CREDENTIAL);
55:             }
56:         }
57: 
58:         throw new NAuthenticationException("User '$username' not found.", self::IDENTITY_NOT_FOUND);
59:     }
60: 
61: }
62: