Updating Media View to throw a 404 cakeError if the requested file do…

…es not exist; thanks 'aidan' for suggested patch. Fixes #6120.

git-svn-id: https://svn.cakephp.org/repo/branches/1.2.x.x@8066 3807eeeb-6ff5-0310-8944-8be069107fe0

cake/libs/view/media.php

@@ -105,6 +105,11 @@ function render() {
 		} else {
 			$path = APP . $path . $id;
 		}
+
+		if (!file_exists($path)) {
+			header('Content-Type: text/html');
+			$this->cakeError('error404');
+		}
 
 		if (is_null($name)) {
 			$name = $id;
@@ -113,8 +118,8 @@ function render() {
 		if (is_array($mimeType)) {
 			$this->mimeType = array_merge($this->mimeType, $mimeType);
 		}
-
-		if (file_exists($path) && isset($extension) && isset($this->mimeType[$extension]) && connection_status() == 0) {
+		
+		if (isset($extension) && isset($this->mimeType[$extension]) && connection_status() == 0) {
 			$chunkSize = 8192;
 			$buffer = '';
 			$fileSize = @filesize($path);