Work around for MSIE WebFolder view not properly showing modified and created...

Work around for MSIE WebFolder view not properly showing modified and created date.  This is the same thing that Apache DAV does, FWIW.

lib/python/webdav/Resource.py

@@ -258,6 +258,13 @@ class Resource(ExtensionClass.Base, Lockable.LockableItem):
         RESPONSE.setHeader('Content-Type', 'text/xml; charset="utf-8"')
         RESPONSE.setBody(result)
         return RESPONSE
+        # work around MSIE DAV bug for creation and modified date
+        if (REQUEST.get_header('User-Agent') ==
+            'Microsoft Data Access Internet Publishing Provider DAV 1.1'):
+            result = result.replace('<n:getlastmodified xmlns:n="DAV:">',
+                                    '<n:getlastmodified xmlns:n="DAV:" xmlns:b="urn:uuid:c2f41010-65b3-11d1-a29f-00aa00c14882/" b:dt="dateTime.rfc1123">')
+            result = result.replace('<n:creationdate xmlns:n="DAV:">',
+                                    '<n:creationdate xmlns:n="DAV:" xmlns:b="urn:uuid:c2f41010-65b3-11d1-a29f-00aa00c14882/" b:dt="dateTime.tz">')
 
     def PROPPATCH(self, REQUEST, RESPONSE):
         """Set and/or remove properties defined on the resource."""