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<?php |
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/** |
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* CakePHP(tm) : Rapid Development Framework (http://cakephp.org) |
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* Copyright (c) Cake Software Foundation, Inc. (http://cakefoundation.org) |
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* |
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* Licensed under The MIT License |
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* For full copyright and license information, please see the LICENSE.txt |
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* Redistributions of files must retain the above copyright notice. |
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* |
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* @copyright Copyright (c) Cake Software Foundation, Inc. (http://cakefoundation.org) |
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* @link http://cakephp.org CakePHP(tm) Project |
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* @license http://www.opensource.org/licenses/mit-license.php MIT License |
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*/ |
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declare(strict_types=1); |
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namespace Phauthentic\PasswordHasher; |
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use Cake\Core\Configure; |
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use Cake\Error\Debugger; |
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use Cake\Utility\Security; |
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use RuntimeException; |
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/** |
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* Password hashing class that use weak hashing algorithms. This class is |
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* intended only to be used with legacy databases where passwords have |
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* not been migrated to a stronger algorithm yet. |
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*/ |
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class CakeLegacyPasswordHasher extends AbstractPasswordHasher |
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{ |
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/** |
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* Hash type |
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* |
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* @var string |
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*/ |
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protected $hashType = 'sha1'; |
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/** |
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* @var bool |
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*/ |
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protected $cakeIsPresent = false; |
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/** |
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* @var string |
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*/ |
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protected $salt; |
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/** |
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* {@inheritDoc} |
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*/ |
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public function __construct($useFallback = false) |
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{ |
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if (class_exists(Security::class) && $useFallback === false) { |
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$this->cakeIsPresent = true; |
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if (Configure::read('debug')) { |
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Debugger::checkSecurityKeys(); |
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} |
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} |
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} |
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/** |
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* Sets the hash type |
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* |
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* @param string $type Hashing algo to use. Valid values are those supported by `$algo` argument of `password_hash()`. Defaults to `PASSWORD_DEFAULT` |
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* @return $this |
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*/ |
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public function setHashType(string $type): self |
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{ |
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$this->hashType = $type; |
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return $this; |
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} |
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/** |
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* Generates password hash. |
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* |
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* @param string $password Plain text password to hash. |
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* @return string Password hash |
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*/ |
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public function hash(string $password): string |
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{ |
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if ($this->cakeIsPresent) { |
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return Security::hash($password, $this->hashType, true); |
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} |
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return $this->fallbackHash($password); |
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} |
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/** |
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* Basically a copy of Cakes Security::hash() method |
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* |
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* @param string $password |
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* @return string |
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*/ |
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protected function fallbackHash(string $password) |
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{ |
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if (empty($this->hashType)) { |
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throw new RuntimeException('You must specify a hash type'); |
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} |
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$algorithm = strtolower($this->hashType); |
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$availableAlgorithms = hash_algos(); |
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if (!in_array($algorithm, $availableAlgorithms)) { |
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throw new RuntimeException(sprintf( |
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'The hash type `%s` was not found. Available algorithms are: %s', |
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$algorithm, |
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implode(', ', $availableAlgorithms) |
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)); |
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} |
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if ($this->salt) { |
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if (!is_string($this->salt)) { |
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throw new RuntimeException('No salt present'); |
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} |
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$password = $this->salt . $password; |
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} |
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return hash($algorithm, $password); |
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} |
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/** |
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* Check hash. Generate hash for user provided password and check against existing hash. |
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* |
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* @param string $password Plain text password to hash. |
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* @param string $hashedPassword Existing hashed password. |
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* @return bool True if hashes match else false. |
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*/ |
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public function check(string $password, string $hashedPassword): bool |
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{ |
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return $hashedPassword === $this->hash($password); |
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} |
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} |
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Phauthentic /
password-hashers
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