lib/public/security/stringutils.php


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<?php
/**
 * Copyright (c) 2014 Lukas Reschke <lukas@owncloud.com>
 * This file is licensed under the Affero General Public License version 3 or
 * later.
 * See the COPYING-README file.
 */


namespace OCP\Security;

class StringUtils {
	/**
	 * Compares whether two strings are equal. To prevent guessing of the string
	 * length this is done by comparing two hashes against each other and afterwards
	 * a comparison of the real string to prevent against the unlikely chance of
	 * collisions.
	 * @param string $expected The expected value
	 * @param string $input The input to compare against
	 * @return bool True if the two strings are equal, otherwise false.
	 */
	public static function equals($expected, $input) {
		return \OC\Security\StringUtils::equals($expected, $input);
	}
}