Initial Kohana install

[speedfreak] / Server / system / helpers / download.php

diff --git a/Server/system/helpers/download.php b/Server/system/helpers/download.php
new file mode 100644 (file)
index 0000000..49fed42
--- /dev/null
+++ b/Server/system/helpers/download.php
@@ -0,0 +1,105 @@
+<?php defined('SYSPATH') OR die('No direct access allowed.');
+/**
+ * Download helper class.
+ *
+ * $Id: download.php 3769 2008-12-15 00:48:56Z zombor $
+ *
+ * @package    Core
+ * @author     Kohana Team
+ * @copyright  (c) 2007-2008 Kohana Team
+ * @license    http://kohanaphp.com/license.html
+ */
+class download_Core {
+
+       /**
+        * Force a download of a file to the user's browser. This function is
+        * binary-safe and will work with any MIME type that Kohana is aware of.
+        *
+        * @param   string  a file path or file name
+        * @param   mixed   data to be sent if the filename does not exist
+        * @param   string  suggested filename to display in the download
+        * @return  void
+        */
+       public static function force($filename = NULL, $data = NULL, $nicename = NULL)
+       {
+               if (empty($filename))
+                       return FALSE;
+
+               if (is_file($filename))
+               {
+                       // Get the real path
+                       $filepath = str_replace('\\', '/', realpath($filename));
+
+                       // Set filesize
+                       $filesize = filesize($filepath);
+
+                       // Get filename
+                       $filename = substr(strrchr('/'.$filepath, '/'), 1);
+
+                       // Get extension
+                       $extension = strtolower(substr(strrchr($filepath, '.'), 1));
+               }
+               else
+               {
+                       // Get filesize
+                       $filesize = strlen($data);
+
+                       // Make sure the filename does not have directory info
+                       $filename = substr(strrchr('/'.$filename, '/'), 1);
+
+                       // Get extension
+                       $extension = strtolower(substr(strrchr($filename, '.'), 1));
+               }
+
+               // Get the mime type of the file
+               $mime = Kohana::config('mimes.'.$extension);
+
+               if (empty($mime))
+               {
+                       // Set a default mime if none was found
+                       $mime = array('application/octet-stream');
+               }
+
+               // Generate the server headers
+               header('Content-Type: '.$mime[0]);
+               header('Content-Disposition: attachment; filename="'.(empty($nicename) ? $filename : $nicename).'"');
+               header('Content-Transfer-Encoding: binary');
+               header('Content-Length: '.sprintf('%d', $filesize));
+
+               // More caching prevention
+               header('Expires: 0');
+
+               if (Kohana::user_agent('browser') === 'Internet Explorer')
+               {
+                       // Send IE headers
+                       header('Cache-Control: must-revalidate, post-check=0, pre-check=0');
+                       header('Pragma: public');
+               }
+               else
+               {
+                       // Send normal headers
+                       header('Pragma: no-cache');
+               }
+
+               // Clear the output buffer
+               Kohana::close_buffers(FALSE);
+
+               if (isset($filepath))
+               {
+                       // Open the file
+                       $handle = fopen($filepath, 'rb');
+
+                       // Send the file data
+                       fpassthru($handle);
+
+                       // Close the file
+                       fclose($handle);
+               }
+               else
+               {
+                       // Send the file data
+                       echo $data;
+               }
+       }
+
+} // End download
\ No newline at end of file