Properly port the improvement in 1.5 to not allow comma separated extensions in 
the resource path.
In 6.x ResourceNameIterator expects an Iterable<String> of extensions. Not a 
comma separated String.


Project: http://git-wip-us.apache.org/repos/asf/wicket/repo
Commit: http://git-wip-us.apache.org/repos/asf/wicket/commit/686f934c
Tree: http://git-wip-us.apache.org/repos/asf/wicket/tree/686f934c
Diff: http://git-wip-us.apache.org/repos/asf/wicket/diff/686f934c

Branch: refs/heads/master
Commit: 686f934c9de800b13420657d35ea201c2a2e2c94
Parents: 3297e3c
Author: Martin Tzvetanov Grigorov <[email protected]>
Authored: Tue Mar 27 10:53:03 2012 +0200
Committer: Martin Tzvetanov Grigorov <[email protected]>
Committed: Tue Mar 27 10:53:03 2012 +0200

----------------------------------------------------------------------
 .../resource/locator/ResourceStreamLocator.java    |   22 +++++++++++----
 1 files changed, 16 insertions(+), 6 deletions(-)
----------------------------------------------------------------------


http://git-wip-us.apache.org/repos/asf/wicket/blob/686f934c/wicket-core/src/main/java/org/apache/wicket/core/util/resource/locator/ResourceStreamLocator.java
----------------------------------------------------------------------
diff --git 
a/wicket-core/src/main/java/org/apache/wicket/core/util/resource/locator/ResourceStreamLocator.java
 
b/wicket-core/src/main/java/org/apache/wicket/core/util/resource/locator/ResourceStreamLocator.java
index 7e614b7..2cbbc2a 100644
--- 
a/wicket-core/src/main/java/org/apache/wicket/core/util/resource/locator/ResourceStreamLocator.java
+++ 
b/wicket-core/src/main/java/org/apache/wicket/core/util/resource/locator/ResourceStreamLocator.java
@@ -19,6 +19,7 @@ package org.apache.wicket.core.util.resource.locator;
 import java.net.URL;
 import java.util.ArrayList;
 import java.util.Arrays;
+import java.util.Collections;
 import java.util.Locale;
 
 import org.apache.wicket.Application;
@@ -255,28 +256,37 @@ public class ResourceStreamLocator implements 
IResourceStreamLocator
        public ResourceNameIterator newResourceNameIterator(final String path, 
final Locale locale,
                final String style, final String variation, final String 
extension, final boolean strict)
        {
-               final Iterable<String> extensions = extension == null ? 
NO_EXTENSIONS : Arrays.asList(extension);
+               final Iterable<String> extensions;
 
                final String realPath;
-               final String realExtension;
 
                if ((extension == null) && (path != null) && (path.indexOf('.') 
!= -1))
                {
+                       // extract the path and extension
                        realPath = Strings.beforeLast(path, '.');
-                       // for extensions with separator take the first 
extension
-                       realExtension = Strings.afterLast(path, '.');
+                       String realExtension = Strings.afterLast(path, '.');
                        if (realExtension.indexOf(',') > -1)
                        {
                                // multiple extensions are not allowed in the 
path parameter
+                               // it could be an attack, so ignore it and 
pretend there are no resources
                                return new EmptyResourceNameIterator();
                        }
+                       extensions = Collections.singleton(realExtension);
                }
                else
                {
                        realPath = path;
-                       realExtension = extension;
+                       if (extension == null)
+                       {
+                               extensions = NO_EXTENSIONS;
+                       }
+                       else
+                       {
+                               String[] commaSeparated = 
Strings.split(extension, ',');
+                               extensions = Arrays.asList(commaSeparated);
+                       }
                }
 
-               return new ResourceNameIterator(path, style, variation, locale, 
extensions, strict);
+               return new ResourceNameIterator(realPath, style, variation, 
locale, extensions, strict);
        }
 }

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