commit c13bfdb714e2b3664ef4e2062bef752d2bd19f14
author Kevin Moore <github@j832.com> Wed Mar 12 15:45:48 2014 -0700
committer Kevin Moore <github@j832.com> Wed Mar 12 15:45:48 2014 -0700
tree 60f46c324923a6a004940b89f2d55daf5251b12a
parent 1fdb16be4098c5975f10adca94e48f49b9fe9c1d

resolve the root directory once

lib/shelf_static.dart

diff --git a/lib/shelf_static.dart b/lib/shelf_static.dart
index f50c8b2..dd0cd48 100644
--- a/lib/shelf_static.dart
+++ b/lib/shelf_static.dart
@@ -12,11 +12,12 @@
 // hidden files
 
 Handler getHandler(String fileSystemPath) {
-  return (Request request) {
-    var rootDir = new Directory(fileSystemPath);
-    var rootPath = rootDir.resolveSymbolicLinksSync();
+  var rootDir = new Directory(fileSystemPath);
+  fileSystemPath = rootDir.resolveSymbolicLinksSync();
 
-    var segs = [rootPath]..addAll(request.pathSegments);
+  return (Request request) {
+
+    var segs = [fileSystemPath]..addAll(request.pathSegments);
 
     var requestedPath = p.joinAll(segs);
     var file = new File(requestedPath);
@@ -28,9 +29,9 @@
     var resolvedPath = file.resolveSymbolicLinksSync();
 
     // Do not serve a file outside of the original fileSystemPath
-    if (!p.isWithin(rootPath, resolvedPath)) {
+    if (!p.isWithin(fileSystemPath, resolvedPath)) {
       throw 'Requested path ${request.pathInfo} resolved to $resolvedPath '
-          'is not under $rootPath.';
+          'is not under $fileSystemPath.';
     }
 
     var stats = file.statSync();