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  • Committer: Gustav Hartvigsson
  • Date: 2013-04-05 15:54:35 UTC
  • mfrom: (19.1.4 lenasys)
  • Revision ID: gustav.hartvigsson@gmail.com-20130405155435-lf76rf1vwcacin4p
Merged from implementation group 1's team branch into trunk, 20130405 end of
day.

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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'