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:  * Trivial implementation of IAuthenticator.
13:  *
14:  * @author     David Grudl
15:  * @package Nette\Security
16:  */
17: class NSimpleAuthenticator extends NObject implements IAuthenticator
18: {
19:     /** @var array */
20:     private $userlist;
21: 
22: 
23:     /**
24:      * @param  array  list of pairs username => password
25:      */
26:     public function __construct(array $userlist)
27:     {
28:         $this->userlist = $userlist;
29:     }
30: 
31: 
32:     /**
33:      * Performs an authentication against e.g. database.
34:      * and returns IIdentity on success or throws NAuthenticationException
35:      * @return IIdentity
36:      * @throws NAuthenticationException
37:      */
38:     public function authenticate(array $credentials)
39:     {
40:         list($username, $password) = $credentials;
41:         foreach ($this->userlist as $name => $pass) {
42:             if (strcasecmp($name, $username) === 0) {
43:                 if ((string) $pass === (string) $password) {
44:                     return new NIdentity($name);
45:                 } else {
46:                     throw new NAuthenticationException('Invalid password.', self::INVALID_CREDENTIAL);
47:                 }
48:             }
49:         }
50:         throw new NAuthenticationException("User '$username' not found.", self::IDENTITY_NOT_FOUND);
51:     }
52: 
53: }
54: