Merged V2.1 to HEAD

6817: Fix for a resource bundle isue with regen renditions wizard and snapshot labels.
   6809: Fixes for locking and permission related issues relating to forms.
   6808: Uunit test update
   6799: AR-1760: Office webscript : property is undefined when opening a document
   6799: WCM submit dialog now sets focus to first field (label) rather than second (comment)
   6795: Fix to line break encoder.
   6781: WebDAV auth to return HTTP 401 instead of exception when user is null
   6775: Fix for appserver shutdown hang
   6761: Using avmService instead of nodeService to avoid a permission error MIT is seeing.
   6742: Fix for MIT locking issue for content contributors
   6706: Fixes to make wizard pages work in standards compliant mode.



git-svn-id: https://svn.alfresco.com/repos/alfresco-enterprise/alfresco/HEAD/root@6823 c4b6b30b-aa2e-2d43-bbcb-ca4b014f7261

source/java/org/alfresco/repo/webdav/auth/AuthenticationFilter.java

@@ -276,13 +276,25 @@ public class AuthenticationFilter implements Filter
         }
         else
         {
-            // Setup the authentication context
+            try
+            {
+               // Setup the authentication context
+               m_authService.validate(user.getTicket());
 
-            m_authService.validate(user.getTicket());
+               // Set the current locale
 
-            // Set the current locale
-
-            // I18NUtil.setLocale(Application.getLanguage(httpRequest.getSession()));
+               // I18NUtil.setLocale(Application.getLanguage(httpRequest.getSession()));
+            }
+            catch (Exception ex)
+            {
+               // No user/ticket, force the client to prompt for logon details
+               
+               httpResp.setHeader("WWW-Authenticate", "BASIC realm=\"Alfresco DAV Server\"");
+               httpResp.setStatus(HttpServletResponse.SC_UNAUTHORIZED);
+   
+               httpResp.flushBuffer();
+               return;
+            }
         }
 
         // Chain other filters