68 lines
2.3 KiB
PHP
68 lines
2.3 KiB
PHP
<?php
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declare(strict_types=1);
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/**
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* @copyright Copyright (c) 2016, ownCloud, Inc.
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*
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* @author Fabrizio Steiner <fabrizio.steiner@gmail.com>
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* @author Lukas Reschke <lukas@statuscode.ch>
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* @author Morris Jobke <hey@morrisjobke.de>
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* @author Roeland Jago Douma <roeland@famdouma.nl>
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*
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* @license AGPL-3.0
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*
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* This code is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License, version 3,
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* as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License, version 3,
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* along with this program. If not, see <http://www.gnu.org/licenses/>
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*
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*/
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namespace OCP\Security;
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/**
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* Class SecureRandom provides a wrapper around the random_int function to generate
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* secure random strings. For PHP 7 the native CSPRNG is used, older versions do
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* use a fallback.
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*
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* Usage:
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* \OC::$server->getSecureRandom()->generate(10);
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*
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* @package OCP\Security
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* @since 8.0.0
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*/
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interface ISecureRandom {
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/**
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* Flags for characters that can be used for <code>generate($length, $characters)</code>
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*/
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const CHAR_UPPER = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ';
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const CHAR_LOWER = 'abcdefghijklmnopqrstuvwxyz';
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const CHAR_DIGITS = '0123456789';
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const CHAR_SYMBOLS = '!\"#$%&\\\'()* +,-./:;<=>?@[\]^_`{|}~';
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/**
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* Characters that can be used for <code>generate($length, $characters)</code>, to
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* generate human readable random strings. Lower- and upper-case characters and digits
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* are included. Characters which are ambiguous are excluded, such as I, l, and 1 and so on.
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*/
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const CHAR_HUMAN_READABLE = 'abcdefgijkmnopqrstwxyzABCDEFGHJKLMNPQRSTWXYZ23456789';
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/**
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* Generate a random string of specified length.
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* @param int $length The length of the generated string
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* @param string $characters An optional list of characters to use if no character list is
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* specified all valid base64 characters are used.
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* @return string
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* @since 8.0.0
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*/
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public function generate(int $length,
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string $characters = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/'): string;
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}
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