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StringUtils.php 1.5 KB

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  1. <?php
  2. /**
  3. * @copyright Copyright (c) 2016, ownCloud, Inc.
  4. *
  5. * @author Lukas Reschke <lukas@statuscode.ch>
  6. * @author Morris Jobke <hey@morrisjobke.de>
  7. *
  8. * @license AGPL-3.0
  9. *
  10. * This code is free software: you can redistribute it and/or modify
  11. * it under the terms of the GNU Affero General Public License, version 3,
  12. * as published by the Free Software Foundation.
  13. *
  14. * This program is distributed in the hope that it will be useful,
  15. * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16. * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  17. * GNU Affero General Public License for more details.
  18. *
  19. * You should have received a copy of the GNU Affero General Public License, version 3,
  20. * along with this program. If not, see <http://www.gnu.org/licenses/>
  21. *
  22. */
  23. namespace OCP\Security;
  24. /**
  25. * Class StringUtils
  26. *
  27. * @package OCP\Security
  28. * @since 8.0.0
  29. */
  30. class StringUtils {
  31. /**
  32. * Compares whether two strings are equal. To prevent guessing of the string
  33. * length this is done by comparing two hashes against each other and afterwards
  34. * a comparison of the real string to prevent against the unlikely chance of
  35. * collisions.
  36. * @param string $expected The expected value
  37. * @param string $input The input to compare against
  38. * @return bool True if the two strings are equal, otherwise false.
  39. * @since 8.0.0
  40. * @deprecated 9.0.0 Use hash_equals
  41. */
  42. public static function equals($expected, $input) {
  43. return hash_equals($expected, $input);
  44. }
  45. }