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:  */
 7: 
 8: namespace Nette\Security;
 9: 
10: use Nette;
11: 
12: 
13: /**
14:  * Trivial implementation of IAuthenticator.
15:  *
16:  * @author     David Grudl
17:  */
18: class SimpleAuthenticator extends Nette\Object implements IAuthenticator
19: {
20:     /** @var array */
21:     private $userlist;
22: 
23:     /** @var array */
24:     private $usersRoles;
25: 
26: 
27:     /**
28:      * @param  array  list of pairs username => password
29:      * @param  array  list of pairs username => role[]
30:      */
31:     public function __construct(array $userlist, array $usersRoles = array())
32:     {
33:         $this->userlist = $userlist;
34:         $this->usersRoles = $usersRoles;
35:     }
36: 
37: 
38:     /**
39:      * Performs an authentication against e.g. database.
40:      * and returns IIdentity on success or throws AuthenticationException
41:      * @return IIdentity
42:      * @throws AuthenticationException
43:      */
44:     public function authenticate(array $credentials)
45:     {
46:         list($username, $password) = $credentials;
47:         foreach ($this->userlist as $name => $pass) {
48:             if (strcasecmp($name, $username) === 0) {
49:                 if ((string) $pass === (string) $password) {
50:                     return new Identity($name, isset($this->usersRoles[$name]) ? $this->usersRoles[$name] : NULL);
51:                 } else {
52:                     throw new AuthenticationException('Invalid password.', self::INVALID_CREDENTIAL);
53:                 }
54:             }
55:         }
56:         throw new AuthenticationException("User '$username' not found.", self::IDENTITY_NOT_FOUND);
57:     }
58: 
59: }
60: