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:  */
11: 
12: namespace Nette\Security;
13: 
14: use Nette;
15: 
16: 
17: 
18: /**
19:  * Trivial implementation of IAuthenticator.
20:  *
21:  * @author     David Grudl
22:  */
23: class SimpleAuthenticator extends Nette\Object implements IAuthenticator
24: {
25:     /** @var array */
26:     private $userlist;
27: 
28: 
29:     /**
30:      * @param  array  list of usernames and passwords
31:      */
32:     public function __construct(array $userlist)
33:     {
34:         $this->userlist = $userlist;
35:     }
36: 
37: 
38: 
39:     /**
40:      * Performs an authentication against e.g. database.
41:      * and returns IIdentity on success or throws AuthenticationException
42:      * @param  array
43:      * @return IIdentity
44:      * @throws AuthenticationException
45:      */
46:     public function authenticate(array $credentials)
47:     {
48:         $username = $credentials[self::USERNAME];
49:         foreach ($this->userlist as $name => $pass) {
50:             if (strcasecmp($name, $credentials[self::USERNAME]) === 0) {
51:                 if (strcasecmp($pass, $credentials[self::PASSWORD]) === 0) {
52:                     // matched!
53:                     return new Identity($name);
54:                 }
55: 
56:                 throw new AuthenticationException("Invalid password.", self::INVALID_CREDENTIAL);
57:             }
58:         }
59: 
60:         throw new AuthenticationException("User '$username' not found.", self::IDENTITY_NOT_FOUND);
61:     }
62: 
63: }
64: