Fix links of VirtualDirectory.

pkg/http_server/lib/src/virtual_directory.dart

 // Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 part of http_server;
 
 
 // Used for signal a directory redirecting, where a tailing slash is missing.
 class _DirectoryRedirect {
   const _DirectoryRedirect();
@@ skipping 268 matching lines @@
       if (server == null) server = "";
       var footer =
 '''</table>
 $server
 </body>
 </html>
 ''';
 
       response.write(header);
 
-      void add(String name, String modified, var size) {
-        try {
+      void add(String name, String modified, var size, bool folder) {
         if (size == null) size = "-";
         if (modified == null) modified = "";
         var encodedSize = new HtmlEscape().convert(size.toString());
         var encodedModified = new HtmlEscape().convert(modified);
         var encodedLink = new HtmlEscape(HtmlEscapeMode.ATTRIBUTE)
-            .convert(Uri.encodeComponent(normalize(join(path, name))));
+            .convert(Uri.encodeComponent(name));
+        if (folder) {
+          encodedLink += '/';
+          name += '/';
+        }
         var encodedName = new HtmlEscape().convert(name);
 
         var entry =
 '''  <tr>
     <td><a href="$encodedLink">$encodedName</a></td>
     <td>$encodedModified</td>
     <td style="text-align: right">$encodedSize</td>
   </tr>''';
         response.write(entry);
-        } catch (e) {
-          print(e);
-        }
       }
 
       if (path != '/') {
-        add('../', null, null);
+        add('..', null, null, true);
       }
 
       dir.list(followLinks: true).listen((entity) {
+        var name = basename(entity.path);
+        var stat = entity.statSync();
         if (entity is File) {
-          var stat = entity.statSync();
-          add(basename(entity.path),
+          add(name,
               stat.modified.toString(),
-              stat.size);
+              stat.size,
+              false);
         } else if (entity is Directory) {
-          add(basename(entity.path) + '/',
-              entity.statSync().modified.toString(),
-              null);
+          add(name,
+              stat.modified.toString(),
+              null,
+              true);
         }
       }, onError: (e) {
         // TODO(kevmoo): log error
       }, onDone: () {
         response.write(footer);
         response.close();
       });
     }, onError: (e) {
       // TODO(kevmoo): log error
       response.close();
@@ skipping 82 matching lines @@
 
   Future close() => new Future.value();
 
   void setMimeType(List<int> bytes) {
     var mimeType = lookupMimeType(path, headerBytes: bytes);
     if (mimeType != null) {
       response.headers.contentType = ContentType.parse(mimeType);
     }
   }
 }