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<?php |
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namespace Germania\UserProfiles; |
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use Psr\Log\LoggerInterface; |
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use Psr\Log\NullLogger; |
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use Ramsey\Uuid\Uuid; |
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use Ramsey\Uuid\UuidFactory; |
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/** |
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* This Callable checks if given username and password match a stored login name and password combination, |
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* using a custom verifier function. |
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* |
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* Example: |
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* |
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* <?php |
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* use Germania\UserProfiles\PdoNewCredentialsValidator; |
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* |
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* $pdo = new PDO( ... ); |
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* $verifier = function() { return false; }; |
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* $logger = new Monolog(); |
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* $table = 'users'; |
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* |
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* $checker = new PdoNewCredentialsValidator( $pdo, $verifier, $logger, $table); |
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* $data = $checker( '[email protected]', 'take_this_secret' ); |
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* ?> |
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* |
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* @author Carsten Witt <[email protected]> |
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*/ |
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class PdoNewCredentialsValidator |
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{ |
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/** |
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* Database table |
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* @var string |
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*/ |
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public $table = 'users'; |
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/** |
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* @var PDOStatement |
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*/ |
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public $stmt; |
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/** |
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* @var Callable |
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*/ |
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public $password_verifier; |
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/** |
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* @var LoggerInterface |
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*/ |
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public $logger; |
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/** |
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* @var UuidFactory |
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*/ |
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public $uuid_factory; |
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/** |
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* @param PDO $pdo PDO instance |
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* @param Callable $password_verifier Callable password verifier that accepts password and password hash |
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* @param LoggerInterface $logger Optional: PSR-3 Logger |
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* @param string $table Optional: Database table name |
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*/ |
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public function __construct( \PDO $pdo, Callable $password_verifier, LoggerInterface $logger = null, $table = null) |
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{ |
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$this->password_verifier = $password_verifier; |
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$this->logger = $logger ?: new NullLogger; |
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$this->table = $table ?: $this->table; |
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$this->uuid_factory = new UuidFactory; |
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// Prepare business |
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$sql = "SELECT |
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id, |
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HEX(uuid) as uuid, |
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api_key, |
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password |
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FROM {$this->table} |
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WHERE user_login_name = :login_name |
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LIMIT 1"; |
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// Store for later use |
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$this->stmt = $pdo->prepare( $sql ); |
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} |
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/** |
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* @param string $login_name |
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* @param string $password |
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* |
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* @return mixed Array with User's ID, UUID, and API key, or FALSE on wrong credentials |
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*/ |
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public function __invoke( $login_name, $password ) |
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{ |
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// Perform |
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$this->stmt->execute([ |
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'login_name' => $login_name |
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]); |
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// If user not found... |
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$found_user = $this->stmt->fetch( \PDO::FETCH_ASSOC ); |
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if (!$found_user): |
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$this->logger->warning("User login name not found", [ |
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'user_name' => $login_name |
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]); |
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return false; |
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endif; |
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// If password is wrong... |
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$verifier = $this->password_verifier; |
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if(!$verifier( $password, $found_user['password'])) : |
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$this->logger->warning("Wrong password", [ |
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'user_name' => $login_name |
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]); |
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return false; |
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endif; |
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// Return found user data |
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$uuid_factory = $this->uuid_factory; |
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$uuid = $uuid_factory->fromString( $found_user['uuid'] ); |
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return [ |
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'id' => $found_user['id'], |
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'uuid' => $uuid, |
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'api_key' => $found_user['api_key'] |
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]; |
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} |
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} |
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GermaniaKG /
UserProfiles
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