3 namespace Org\Mxchange\CoreFramework\Helper\Captcha;
5 // Import framework stuff
6 use Org\Mxchange\CoreFramework\Crypto\RandomNumber\RandomNumberGenerator;
7 use Org\Mxchange\CoreFramework\Factory\ObjectFactory;
8 use Org\Mxchange\CoreFramework\Generic\FrameworkInterface;
9 use Org\Mxchange\CoreFramework\Helper\BaseHelper;
14 * @author Roland Haeder <webmaster@shipsimu.org>
16 * @copyright Copyright (c) 2007, 2008 Roland Haeder, 2009 - 2020 Core Developer Team
17 * @license GNU GPL 3.0 or any newer version
18 * @link http://www.shipsimu.org
20 * This program is free software: you can redistribute it and/or modify
21 * it under the terms of the GNU General Public License as published by
22 * the Free Software Foundation, either version 3 of the License, or
23 * (at your option) any later version.
25 * This program is distributed in the hope that it will be useful,
26 * but WITHOUT ANY WARRANTY; without even the implied warranty of
27 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
28 * GNU General Public License for more details.
30 * You should have received a copy of the GNU General Public License
31 * along with this program. If not, see <http://www.gnu.org/licenses/>.
33 abstract class BaseCaptcha extends BaseHelper {
37 private $rngInstance = NULL;
40 * Protected constructor
42 * @param $className Name of the class
45 protected function __construct (string $className) {
46 // Call parent constructor
47 parent::__construct($className);
51 * Setter for RNG instance
53 * @param $rngInstance An instance of a random number generator (RNG)
56 protected final function setRngInstance (RandomNumberGenerator $rngInstance) {
57 $this->rngInstance = $rngInstance;
61 * Getter for RNG instance
63 * @return $rngInstance An instance of a random number generator (RNG)
65 public final function getRngInstance () {
66 return $this->rngInstance;
70 * Initializes the random number generator (RNG)
72 * @param $extraInstance An extra instance, just for better hash data
75 protected final function initializeRandomNumberGenerator (FrameworkInterface $extraInstance = NULL) {
76 // Get an RNG from factory
77 $this->setRngInstance(ObjectFactory::createObjectByConfiguredName('rng_class', array($extraInstance)));