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PHP Version:

7.3.33

User:

u435171512

Directory:

/home/u435171512/public_html/crm/system/helpers

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✏️ Editing: download_helper.php

<?php
/**
 * CodeIgniter
 *
 * An open source application development framework for PHP
 *
 * This content is released under the MIT License (MIT)
 *
 * Copyright (c) 2014 - 2015, British Columbia Institute of Technology
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 *
 * @package	CodeIgniter
 * @author	EllisLab Dev Team
 * @copyright	Copyright (c) 2008 - 2014, EllisLab, Inc. (http://ellislab.com/)
 * @copyright	Copyright (c) 2014 - 2015, British Columbia Institute of Technology (http://bcit.ca/)
 * @license	http://opensource.org/licenses/MIT	MIT License
 * @link	http://codeigniter.com
 * @since	Version 1.0.0
 * @filesource
 */
defined('BASEPATH') OR exit('No direct script access allowed');

/**
 * CodeIgniter Download Helpers
 *
 * @package		CodeIgniter
 * @subpackage	Helpers
 * @category	Helpers
 * @author		EllisLab Dev Team
 * @link		http://codeigniter.com/user_guide/helpers/download_helper.html
 */

// ------------------------------------------------------------------------

if ( ! function_exists('force_download'))
{
	/**
	 * Force Download
	 *
	 * Generates headers that force a download to happen
	 *
	 * @param	string	filename
	 * @param	mixed	the data to be downloaded
	 * @param	bool	whether to try and send the actual file MIME type
	 * @return	void
	 */
	function force_download($filename = '', $data = '', $set_mime = FALSE)
	{
		if ($filename === '' OR $data === '')
		{
			return;
		}
		elseif ($data === NULL)
		{
			if ( ! @is_file($filename) OR ($filesize = @filesize($filename)) === FALSE)
			{
				return;
			}

$filepath = $filename;
			$filename = explode('/', str_replace(DIRECTORY_SEPARATOR, '/', $filename));
			$filename = end($filename);
		}
		else
		{
			$filesize = strlen($data);
		}

// Set the default MIME type to send
		$mime = 'application/octet-stream';

$x = explode('.', $filename);
		$extension = end($x);

if ($set_mime === TRUE)
		{
			if (count($x) === 1 OR $extension === '')
			{
				/* If we're going to detect the MIME type,
				 * we'll need a file extension.
				 */
				return;
			}

// Load the mime types
			$mimes =& get_mimes();

// Only change the default MIME if we can find one
			if (isset($mimes[$extension]))
			{
				$mime = is_array($mimes[$extension]) ? $mimes[$extension][0] : $mimes[$extension];
			}
		}

/* It was reported that browsers on Android 2.1 (and possibly older as well)
		 * need to have the filename extension upper-cased in order to be able to
		 * download it.
		 *
		 * Reference: http://digiblog.de/2011/04/19/android-and-the-download-file-headers/
		 */
		if (count($x) !== 1 && isset($_SERVER['HTTP_USER_AGENT']) && preg_match('/Android\s(1|2\.[01])/', $_SERVER['HTTP_USER_AGENT']))
		{
			$x[count($x) - 1] = strtoupper($extension);
			$filename = implode('.', $x);
		}

if ($data === NULL && ($fp = @fopen($filepath, 'rb')) === FALSE)
		{
			return;
		}

// Clean output buffer
		if (ob_get_level() !== 0 && @ob_end_clean() === FALSE)
		{
			@ob_clean();
		}

// Generate the server headers
		header('Content-Type: '.$mime);
		header('Content-Disposition: attachment; filename="'.$filename.'"');
		header('Expires: 0');
		header('Content-Transfer-Encoding: binary');
		header('Content-Length: '.$filesize);
		header('Cache-Control: private, no-transform, no-store, must-revalidate');

// If we have raw data - just dump it
		if ($data !== NULL)
		{
			exit($data);
		}

// Flush 1MB chunks of data
		while ( ! feof($fp) && ($data = fread($fp, 1048576)) !== FALSE)
		{
			echo $data;
		}

fclose($fp);
		exit;
	}
}

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