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<?php
declare(strict_types=1);
namespace Sabre\DAV\Auth\Backend;
/**
* This is an authentication backend that uses a database to manage passwords.
*
* @copyright Copyright (C) fruux GmbH (https://fruux.com/)
* @author Evert Pot (http://evertpot.com/)
* @license http://sabre.io/license/ Modified BSD License
*/
class PDO extends AbstractDigest
{
/**
* Reference to PDO connection.
*
* @var PDO
*/
protected $pdo;
/**
* PDO table name we'll be using.
*
* @var string
*/
public $tableName = 'users';
/**
* Creates the backend object.
*
* If the filename argument is passed in, it will parse out the specified file fist.
*/
public function __construct(\PDO $pdo)
{
$this->pdo = $pdo;
}
/**
* Returns the digest hash for a user.
*
* @param string $realm
* @param string $username
*
* @return string|null
*/
public function getDigestHash($realm, $username)
{
$stmt = $this->pdo->prepare('SELECT digesta1 FROM '.$this->tableName.' WHERE username = ?');
$stmt->execute([$username]);
return $stmt->fetchColumn() ?: null;
}
}
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