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Viewing changes to codeigniter/system/helpers/download_helper.php

  • Committer: galaxyAbstractor
  • Date: 2013-04-10 15:58:59 UTC
  • mfrom: (20.1.1 lenasys)
  • mto: This revision was merged to the branch mainline in revision 23.
  • Revision ID: galaxyabstractor@gmail.com-20130410155859-cih60kaz5es8savt
CodeIgniter implementation of basic CMS system

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codeigniter/system/helpers/download_helper.php
 
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<?php  if ( ! defined('BASEPATH')) exit('No direct script access allowed');
 
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/**
 
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 * CodeIgniter
 
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 *
 
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 * An open source application development framework for PHP 5.1.6 or newer
 
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 *
 
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 * @package             CodeIgniter
 
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 * @author              ExpressionEngine Dev Team
 
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 * @copyright   Copyright (c) 2008 - 2011, EllisLab, Inc.
 
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 * @license             http://codeigniter.com/user_guide/license.html
 
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 * @link                http://codeigniter.com
 
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 * @since               Version 1.0
 
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 * @filesource
 
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 */
 
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// ------------------------------------------------------------------------
 
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/**
 
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 * CodeIgniter Download Helpers
 
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 *
 
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 * @package             CodeIgniter
 
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 * @subpackage  Helpers
 
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 * @category    Helpers
 
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 * @author              ExpressionEngine Dev Team
 
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 * @link                http://codeigniter.com/user_guide/helpers/download_helper.html
 
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 */
 
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// ------------------------------------------------------------------------
 
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/**
 
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 * Force Download
 
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 *
 
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 * Generates headers that force a download to happen
 
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 *
 
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 * @access      public
 
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 * @param       string  filename
 
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 * @param       mixed   the data to be downloaded
 
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 * @return      void
 
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 */
 
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if ( ! function_exists('force_download'))
 
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{
 
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        function force_download($filename = '', $data = '')
 
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        {
 
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                if ($filename == '' OR $data == '')
 
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                {
 
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                        return FALSE;
 
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                }
 
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                // Try to determine if the filename includes a file extension.
 
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                // We need it in order to set the MIME type
 
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                if (FALSE === strpos($filename, '.'))
 
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                {
 
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                        return FALSE;
 
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                }
 
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                // Grab the file extension
 
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                $x = explode('.', $filename);
 
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                $extension = end($x);
 
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                // Load the mime types
 
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                if (defined('ENVIRONMENT') AND is_file(APPPATH.'config/'.ENVIRONMENT.'/mimes.php'))
 
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                {
 
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                        include(APPPATH.'config/'.ENVIRONMENT.'/mimes.php');
 
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                }
 
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                elseif (is_file(APPPATH.'config/mimes.php'))
 
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                {
 
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                        include(APPPATH.'config/mimes.php');
 
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                }
 
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                // Set a default mime if we can't find it
 
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                if ( ! isset($mimes[$extension]))
 
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                {
 
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                        $mime = 'application/octet-stream';
 
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                }
 
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                else
 
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                {
 
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                        $mime = (is_array($mimes[$extension])) ? $mimes[$extension][0] : $mimes[$extension];
 
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                }
 
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                // Generate the server headers
 
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                if (strpos($_SERVER['HTTP_USER_AGENT'], "MSIE") !== FALSE)
 
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                {
 
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                        header('Content-Type: "'.$mime.'"');
 
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                        header('Content-Disposition: attachment; filename="'.$filename.'"');
 
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                        header('Expires: 0');
 
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                        header('Cache-Control: must-revalidate, post-check=0, pre-check=0');
 
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                        header("Content-Transfer-Encoding: binary");
 
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                        header('Pragma: public');
 
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                        header("Content-Length: ".strlen($data));
 
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                }
 
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                else
 
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                {
 
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                        header('Content-Type: "'.$mime.'"');
 
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                        header('Content-Disposition: attachment; filename="'.$filename.'"');
 
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                        header("Content-Transfer-Encoding: binary");
 
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                        header('Expires: 0');
 
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                        header('Pragma: no-cache');
 
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                        header("Content-Length: ".strlen($data));
 
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                }
 
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                exit($data);
 
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        }
 
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}
 
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/* End of file download_helper.php */
 
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/* Location: ./system/helpers/download_helper.php */
 
 
b'\\ No newline at end of file'