<?php

if (! defined('BASEPATH')) {
    exit('No direct script access allowed.');
}

/**
 * This source file is part of the open source project
 * ExpressionEngine (https://expressionengine.com)
 *
 * @link      https://expressionengine.com/
 * @copyright Copyright (c) 2003-2022, Packet Tide, LLC (https://www.packettide.com)
 * @license   https://expressionengine.com/license Licensed under Apache License, Version 2.0
 */

/**
 * Download Helpers
 */

/**
 * Force Download
 *
 * Generates headers that force a download to happen
 *
 * @access	public
 * @param	string	filename
 * @param	mixed	the data to be downloaded
 * @return	void
 */
if (! function_exists('force_download')) {
    function force_download($filename = '', $data = '')
    {
        if ($filename == '' or $data == '') {
            return false;
        }

        ee()->load->library('mime_type');
        ee()->load->helper('multibyte');

        $mime = ee('MimeType')->ofBuffer($data);

        $len = ee_mb_strlen($data, '8bit');

        // Generate the server headers
        if (strpos($_SERVER['HTTP_USER_AGENT'], "MSIE") !== false) {
            header('Content-Type: "' . $mime . '"');
            header('Content-Disposition: attachment; filename="' . $filename . '"');
            header('Expires: 0');
            header('Cache-Control: must-revalidate, post-check=0, pre-check=0');
            header("Content-Transfer-Encoding: binary");
            header('Pragma: public');
            header("Content-Length: " . $len);
        } else {
            header('Content-Type: "' . $mime . '"');
            header('Content-Disposition: attachment; filename="' . $filename . '"');
            header("Content-Transfer-Encoding: binary");
            header('Expires: 0');
            header('Pragma: no-cache');
            header("Content-Length: " . $len);
        }

        exit($data);
    }
}

// EOF
