Rename 'kohana' to 'system' to conform to the Kohana filesystem layout. I'm comfortable with us not clearly drawing the distinction about the fact that it's Kohana.

1 files changed, 105 insertions, 0 deletions

diff --git a/system/helpers/download.php b/system/helpers/download.php
new file mode 100644
index 00000000..49fed42c
--- /dev/null
+++ b/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