117 lines
2.9 KiB
PHP
117 lines
2.9 KiB
PHP
<?php
|
|
|
|
declare(strict_types=1);
|
|
/**
|
|
* @copyright Copyright (c) 2018, Roeland Jago Douma <roeland@famdouma.nl>
|
|
*
|
|
* @author Roeland Jago Douma <roeland@famdouma.nl>
|
|
*
|
|
* @license GNU AGPL version 3 or any later version
|
|
*
|
|
* This program is free software: you can redistribute it and/or modify
|
|
* it under the terms of the GNU Affero General Public License as
|
|
* published by the Free Software Foundation, either version 3 of the
|
|
* License, or (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU Affero General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Affero General Public License
|
|
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
*
|
|
*/
|
|
|
|
namespace OCA\Password_Policy;
|
|
|
|
use OC\HintException;
|
|
use OCP\Security\ISecureRandom;
|
|
|
|
class Generator {
|
|
|
|
/** @var PasswordPolicyConfig */
|
|
private $config;
|
|
|
|
/** @var PasswordValidator */
|
|
private $validator;
|
|
|
|
/** @var ISecureRandom */
|
|
private $random;
|
|
|
|
public function __construct(PasswordPolicyConfig $config,
|
|
PasswordValidator $validator,
|
|
ISecureRandom $random) {
|
|
$this->config = $config;
|
|
$this->validator = $validator;
|
|
$this->random = $random;
|
|
}
|
|
|
|
/**
|
|
* @return string
|
|
* @throws HintException
|
|
*/
|
|
public function generate(): string {
|
|
$minLength = max($this->config->getMinLength(), 8);
|
|
$length = $minLength;
|
|
|
|
$password = '';
|
|
$chars = '';
|
|
|
|
$found = false;
|
|
for ($i = 0; $i < 10; $i++) {
|
|
if ($this->config->getEnforceUpperLowerCase()) {
|
|
$password .= $this->random->generate(1, ISecureRandom::CHAR_UPPER);
|
|
$password .= $this->random->generate(1, ISecureRandom::CHAR_LOWER);
|
|
$length -= 2;
|
|
$chars .= ISecureRandom::CHAR_UPPER . ISecureRandom::CHAR_LOWER;
|
|
}
|
|
|
|
if ($this->config->getEnforceNumericCharacters()) {
|
|
$password .= $this->random->generate(1, ISecureRandom::CHAR_DIGITS);
|
|
$length -= 1;
|
|
$chars .= ISecureRandom::CHAR_DIGITS;
|
|
}
|
|
|
|
if ($this->config->getEnforceSpecialCharacters()) {
|
|
$password .= $this->random->generate(1, ISecureRandom::CHAR_SYMBOLS);
|
|
$length -= 1;
|
|
$chars .= ISecureRandom::CHAR_SYMBOLS;
|
|
}
|
|
|
|
if ($chars === '') {
|
|
$chars = ISecureRandom::CHAR_HUMAN_READABLE;
|
|
}
|
|
|
|
$password .= $chars = $this->random->generate($length, $chars);
|
|
|
|
// Shuffle string so the order is random
|
|
$password = str_shuffle($password);
|
|
|
|
try {
|
|
$this->validator->validate($password);
|
|
|
|
if ($password === null || $password === '') {
|
|
// something went wrong
|
|
break;
|
|
}
|
|
|
|
$found = true;
|
|
break;
|
|
} catch (HintException $e) {
|
|
/*
|
|
* Invalid so lets go for another round
|
|
* Reset the length so we don't run below zero
|
|
*/
|
|
$length = $minLength;
|
|
}
|
|
}
|
|
|
|
if ($found === false) {
|
|
throw new HintException('Could not generate a valid password');
|
|
}
|
|
|
|
return $password;
|
|
}
|
|
}
|