Fix handling of attribute values

AttributeValue->any can contain any number of MiscTextNode nodes and
MiscTextNode can contain more than text (any XML content). It contains
just text if its property textChild holds TRUE.

The following patch check there is only one MiscTextNode node and that
it is really a text node. In all other cases it reports the fulle value
of the AttributeValue node in the log.

auth_mellon_handler.c

@@ -1667,14 +1667,26 @@ static int add_attributes(am_cache_entry_t *session, request_rec *r,
                     continue;
                 }
 
-                /* Verify that this is a LassoMiscTextNode object. */
-                if(!LASSO_IS_MISC_TEXT_NODE(value->any->data)) {
+                /* Verify there is only one node */
+                if (value->any->next != NULL) {
+                    char *dump = lasso_node_dump(LASSO_NODE(value));
                     ap_log_rerror(APLOG_MARK, APLOG_WARNING, 0, r,
-                                  "AttributeValue element contained an "
-                                  " element which wasn't a text node.");
+                                  "AttributeValue element contained more "
+                                  "than one node: %s", dump);
+                    g_free(dump);
+                    continue;
+                }
+                /* Verify that this is a LassoMiscTextNode object. */
+                if(!LASSO_IS_MISC_TEXT_NODE(value->any->data) ||
+                   !LASSO_MISC_TEXT_NODE(value->any->data)->text_child) {
+                    char *dump = lasso_node_dump(LASSO_NODE(value));
+                    ap_log_rerror(APLOG_MARK, APLOG_WARNING, 0, r,
+                                  "AttributeValue element contained an "
+                                  " element which wasn't a text node: %s",
+                                  dump);
+                    g_free(dump);
                     continue;
                 }
-
                 value_text = LASSO_MISC_TEXT_NODE(value->any->data);