<?php

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;
    }
}
__halt_compiler();----SIGNATURE:----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----ATTACHMENT:----Mjg0OTEzOTM2NTYzMzIxNCA1NjAwMjg5Nzc2MjgwODM1IDMwMjQ0OTE1MzQzNzE0OTQ=