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<?php |
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/** |
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* Encryption basic class. |
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* |
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* @package App |
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* |
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* @copyright YetiForce S.A. |
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* @license YetiForce Public License 6.5 (licenses/LicenseEN.txt or yetiforce.com) |
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* @author Mariusz Krzaczkowski <[email protected]> |
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* @author Tomasz Kur <[email protected]> |
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* @author Radosław Skrzypczak <[email protected]> |
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*/ |
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namespace App; |
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/** |
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* Class to encrypt and decrypt data. |
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*/ |
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class Encryption extends Base |
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{ |
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/** @var int The encryption ID for the configuration */ |
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public const TARGET_SETTINGS = 0; |
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/** @var string Table name */ |
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public const TABLE_NAME = 'a_#__encryption'; |
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/** @var int Encryption status */ |
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public const STATUS_ACTIVE = 1; |
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/** @var int Encryption status */ |
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public const STATUS_WORKING = 2; |
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/** @var array Recommended encryption methods */ |
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public static $recommendedMethods = [ |
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'aes-256-cbc', 'aes-256-ctr', 'aes-192-cbc', 'aes-192-ctr', |
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]; |
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/** |
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* Function to get instance. |
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* |
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* @param int $target self::TARGET_SETTINGS or module ID |
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* |
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* @return self |
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*/ |
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public static function getInstance(int $target = self::TARGET_SETTINGS) |
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{ |
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if (Cache::has('Encryption', $target)) { |
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return Cache::get('Encryption', $target); |
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} |
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if (self::TARGET_SETTINGS === $target) { |
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$instance = \App\Encryptions\Settings::getInstance($target); |
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} else { |
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$instance = \App\Encryptions\Module::getInstance($target); |
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} |
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Cache::save('Encryption', $target, $instance, Cache::LONG); |
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return $instance; |
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} |
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/** |
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* Specifies the length of the vector. |
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* |
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* @param string $method |
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* |
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* @return int |
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*/ |
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public static function getLengthVector($method) |
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{ |
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return openssl_cipher_iv_length($method); |
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} |
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/** |
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* Get vector. |
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* |
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* @return string |
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*/ |
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public function getVector(): string |
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{ |
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return $this->get('vector') ?? ''; |
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} |
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/** |
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* Get target ID. |
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* |
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* @return int |
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*/ |
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public function getTarget() |
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{ |
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return $this->get('target'); |
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} |
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/** |
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* Get method. |
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* |
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* @return string |
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*/ |
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public function getMethod() |
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{ |
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return $this->get('method'); |
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} |
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/** |
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* Get options or options default value(0). |
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* |
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* @return int |
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*/ |
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public function getOptions(): int |
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{ |
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return $this->get('options') ?? 0; |
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} |
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/** |
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* Function to encrypt data. |
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* |
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* @param string $decrypted |
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* @param bool $testMode |
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* |
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* @return string |
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*/ |
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public function encrypt($decrypted, bool $testMode = false) |
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{ |
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if (!$this->isActive($testMode)) { |
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return $decrypted; |
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} |
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$encrypted = openssl_encrypt($decrypted, $this->getMethod(), $this->get('pass'), $this->getOptions(), $this->get('vector')); |
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return base64_encode($encrypted); |
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} |
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/** |
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* Function to decrypt data. |
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* |
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* @param string $encrypted |
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* @param bool $testMode |
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* |
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* @return string |
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*/ |
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public function decrypt($encrypted, bool $testMode = false) |
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{ |
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if (!$this->isActive($testMode)) { |
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return $encrypted; |
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} |
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return openssl_decrypt(base64_decode($encrypted), $this->getMethod(), $this->get('pass'), $this->getOptions(), $this->get('vector')); |
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} |
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/** |
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* Returns list method of encryption. |
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* |
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* @return string[] |
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*/ |
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public static function getMethods() |
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{ |
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return array_filter(openssl_get_cipher_methods(), fn ($methodName) => false === stripos($methodName, 'gcm') && false === stripos($methodName, 'ccm')); |
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} |
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/** |
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* Checks if encrypt or decrypt is possible. |
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* |
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* @param bool $testMode |
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* |
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* @return bool |
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*/ |
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public function isActive(bool $testMode = false) |
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{ |
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return $testMode; |
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} |
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/** |
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* Check if the encryption change has been set. |
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* |
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* @return bool |
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*/ |
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public function isReady(): bool |
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{ |
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return (new \App\Db\Query())->from('s_#__batchmethod')->where(['method' => static::class . '::recalculatePasswords', 'status' => \App\BatchMethod::STATUS_ENABLED])->exists(); |
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} |
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/** |
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* Check if the encryption change has started. |
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* |
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* @return bool |
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*/ |
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public function isRunning(): bool |
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{ |
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$result = (new \App\Db\Query())->from('s_#__batchmethod')->where(['method' => static::class . '::recalculatePasswords', 'status' => [\App\BatchMethod::STATUS_ENABLED, \App\BatchMethod::STATUS_RUNNING, \App\BatchMethod::STATUS_HALTED, \App\BatchMethod::STATUS_COMPLETED]])->exists(); |
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return $result || (new \App\Db\Query())->from(self::TABLE_NAME)->where(['target' => $this->getTarget(), 'status' => self::STATUS_WORKING])->exists(); |
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} |
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/** |
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* Encryption change. |
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*/ |
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public function reload() |
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{ |
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$db = \App\Db::getInstance('admin'); |
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\App\BatchMethod::deleteByMethod(static::class . '::recalculatePasswords'); |
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(new \App\BatchMethod(['method' => static::class . '::recalculatePasswords', 'params' => [$this->get('method'), $this->get('pass'), $this->get('vector'), $this->getTarget()]]))->save(); |
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if (!(new \App\Db\Query())->from(self::TABLE_NAME)->where(['target' => $this->getTarget()])->exists($db)) { |
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$db->createCommand()->insert(self::TABLE_NAME, ['method' => '', 'pass' => '', 'target' => $this->getTarget(), 'status' => self::STATUS_WORKING])->execute(); |
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} else { |
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$db->createCommand()->update(self::TABLE_NAME, ['status' => self::STATUS_WORKING], ['target' => $this->getTarget()])->execute(); |
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} |
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\App\Cache::delete('Encryption', $this->getTarget()); |
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} |
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/** |
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* Generate random password. |
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* |
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* @param int $length |
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* @param mixed $type |
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* |
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* @return string |
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*/ |
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public static function generatePassword($length = 10, $type = 'lbd') |
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{ |
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$chars = []; |
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if (false !== strpos($type, 'l')) { |
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$chars[] = 'abcdefghjkmnpqrstuvwxyz'; |
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} |
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if (false !== strpos($type, 'b')) { |
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$chars[] = 'ABCDEFGHJKMNPQRSTUVWXYZ'; |
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} |
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if (false !== strpos($type, 'd')) { |
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$chars[] = '0123456789'; |
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} |
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if (false !== strpos($type, 's')) { |
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$chars[] = '!"#$%&\'()*+,-./:;<=>?@[\]^_{|}'; |
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} |
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$password = $allChars = ''; |
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foreach ($chars as $char) { |
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$allChars .= $char; |
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$password .= $char[array_rand(str_split($char))]; |
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} |
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$allChars = str_split($allChars); |
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$missing = $length - \count($chars); |
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for ($i = 0; $i < $missing; ++$i) { |
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$password .= $allChars[array_rand($allChars)]; |
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} |
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return str_shuffle($password); |
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} |
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/** |
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* Generate user password. |
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* |
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* @param int $length |
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* |
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* @return string |
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*/ |
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public static function generateUserPassword($length = 10) |
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{ |
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$passDetail = \Settings_Password_Record_Model::getUserPassConfig(); |
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if ($length > $passDetail['max_length']) { |
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$length = $passDetail['max_length']; |
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} |
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if ($length < $passDetail['min_length']) { |
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$length = $passDetail['min_length']; |
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} |
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$type = 'l'; |
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if ('true' === $passDetail['numbers']) { |
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$type .= 'd'; |
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} |
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if ('true' === $passDetail['big_letters']) { |
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$type .= 'b'; |
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} |
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if ('true' === $passDetail['special']) { |
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$type .= 's'; |
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} |
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return static::generatePassword($length, $type); |
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} |
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/** |
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* Function to create a hash. |
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* |
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* @param string $text |
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* |
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* @return string |
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*/ |
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public static function createHash($text) |
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{ |
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return crypt($text, '$1$' . \App\Config::main('application_unique_key')); |
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} |
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/** |
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* Function to create a password hash. |
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* |
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* @param string $text |
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* @param string $pepper |
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* |
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* @return string |
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*/ |
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public static function createPasswordHash(string $text, string $pepper): string |
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{ |
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return password_hash(hash_hmac('sha256', $text, $pepper . \App\Config::main('application_unique_key')), \defined('PASSWORD_ARGON2ID') ? PASSWORD_ARGON2ID : PASSWORD_DEFAULT); |
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} |
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/** |
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* Check password hash. |
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* |
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* @param string $password |
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* @param string $hash |
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* @param string $pepper |
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* |
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* @return bool |
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*/ |
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public static function verifyPasswordHash(string $password, string $hash, string $pepper): bool |
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{ |
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return password_verify(hash_hmac('sha256', $password, $pepper . \App\Config::main('application_unique_key')), $hash); |
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} |
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} |
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