diff options
Diffstat (limited to 'system/helpers/download_helper.php')
| -rw-r--r-- | system/helpers/download_helper.php | 49 |
1 files changed, 23 insertions, 26 deletions
diff --git a/system/helpers/download_helper.php b/system/helpers/download_helper.php index 19192a147..8fe66e222 100644 --- a/system/helpers/download_helper.php +++ b/system/helpers/download_helper.php @@ -1,4 +1,4 @@ -<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed'); +<?php /** * CodeIgniter * @@ -24,6 +24,7 @@ * @since Version 1.0 * @filesource */ +defined('BASEPATH') OR exit('No direct script access allowed'); /** * CodeIgniter Download Helpers @@ -37,21 +38,21 @@ // ------------------------------------------------------------------------ -/** - * Force Download - * - * Generates headers that force a download to happen - * - * @param string filename - * @param mixed the data to be downloaded - * @param bool wether to try and send the actual file MIME type - * @return void - */ 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 $data == '') + if ($filename === '' OR $data === '') { return FALSE; } @@ -73,14 +74,7 @@ if ( ! function_exists('force_download')) } // Load the mime types - if (defined('ENVIRONMENT') && is_file(APPPATH.'config/'.ENVIRONMENT.'/mimes.php')) - { - include(APPPATH.'config/'.ENVIRONMENT.'/mimes.php'); - } - elseif (is_file(APPPATH.'config/mimes.php')) - { - include(APPPATH.'config/mimes.php'); - } + $mimes =& get_mimes(); // Only change the default MIME if we can find one if (isset($mimes[$extension])) @@ -101,6 +95,12 @@ if ( ! function_exists('force_download')) $filename = implode('.', $x); } + // Clean output buffer + if (ob_get_level() !== 0) + { + ob_clean(); + } + // Generate the server headers header('Content-Type: '.$mime); header('Content-Disposition: attachment; filename="'.$filename.'"'); @@ -111,14 +111,11 @@ if ( ! function_exists('force_download')) // Internet Explorer-specific headers if (isset($_SERVER['HTTP_USER_AGENT']) && strpos($_SERVER['HTTP_USER_AGENT'], 'MSIE') !== FALSE) { - header('Cache-Control: must-revalidate, post-check=0, pre-check=0'); - header('Pragma: public'); - } - else - { - header('Pragma: no-cache'); + header('Cache-Control: no-cache, no-store, must-revalidate'); } + header('Pragma: no-cache'); + exit($data); } } |