1: <?php
 2: 
 3: namespace Budovy;
 4: 
 5: use Nette;
 6: use Nette\Security as NS;
 7: 
 8: /**
 9:  * Users management.
10:  */
11: class UserManager extends Nette\Object implements NS\IAuthenticator {
12: 
13:     /** @var UserRepository */
14:     private $userRepository;
15: 
16:     public function __construct(UserRepository $userRepository) {
17:         $this->userRepository = $userRepository;
18:     }
19: 
20:     /**
21:      * Performs an authentication.
22:      * @return NS\Identity
23:      * @throws NS\AuthenticationException
24:      */
25:     public function authenticate(array $credentials) {
26:         list($username, $password) = $credentials;
27: 
28:         $row = $this->userRepository->findByName($username);
29: 
30:         if (!$row) {
31:             throw new NS\AuthenticationException("User '$username' not found.", self::IDENTITY_NOT_FOUND);
32:         }
33: 
34:         if ($row->password !== self::calculateHash($password, $row->password)) {
35:             throw new NS\AuthenticationException("Invalid password.", self::INVALID_CREDENTIAL);
36:         }
37: 
38:         $data = $row->toArray();
39: 
40:         unset($data['password']);
41: 
42:         return new NS\Identity($row->id, array($row->role), $data);
43:     }
44: 
45:     /**
46:      * Computes password hash.
47:      * @param  string
48:      * @return string
49:      */
50:     public static function calculateHash($password) {
51:         return sha1($password);
52:     }
53: 
54: }