Make token name configurable.

@@ -60,6 +60,7 @@ import net.sf.json.JSONObject;
 public class DirectControlServlet extends HttpServlet {
     public static final String module = DirectControlServlet.class.getName();
     public static final Map<String, String> serviceURLMappings = new HashMap<String, String>();
+    private String sessionTokenName = "_AUTHTOKEN";
 
     public void init(ServletConfig config) throws ServletException {
         // get the mapping file for this webapp
@@ -67,6 +68,10 @@ public class DirectControlServlet extends HttpServlet {
         String mappingFile = context.getInitParameter("serviceURLMappings");
         Debug.logError("Mapping file: " + mappingFile, module);
 
+        if (context.getInitParameter("sessionTokenName") != null) {
+            sessionTokenName = context.getInitParameter("sessionTokenName");
+        }
+
         if (mappingFile == null) {
             Debug.logError("No mapping file configured", module);
         } else {
@@ -117,19 +122,19 @@ public class DirectControlServlet extends HttpServlet {
                     if (!"CALL".equals(method)) context.put("_method", method);
                     JSON json = new JSON(new StringReader(request.getParameter("model")));
                     Map<String,Object> items = json.JSONObject();
-                    authToken = (String) items.get("_AUTHTOKEN");
+                    authToken = (String) items.get("sessionId");
                     for (String key : items.keySet()) {
-                        if (!"_AUTHTOKEN".equals(key)) {
+                        if (!"sessionId".equals(key)) {
                             context.put(key, items.get(key));
                             Debug.logInfo("parameter '" + key + "'=" + items.get(key), module);
                         }
                     }
             } else {
-                    authToken = request.getParameter("_AUTHTOKEN");
+                    authToken = request.getParameter("sessionId");
                     for (Enumeration<String> params = request.getParameterNames(); params.hasMoreElements();) {
                         String param = params.nextElement();
                         Object[] values = request.getParameterValues(param);
-                        if (!"_AUTHTOKEN".equals(param)) {
+                        if (!"sessionId".equals(param)) {
                             context.put(param, values.length == 1 ? values[0] : values);
                             Debug.logInfo("parameter '" + param + "'=" + context.get(param), module);
                         }
@@ -155,7 +160,7 @@ public class DirectControlServlet extends HttpServlet {
                 }
             }
 
-            // If the _AUTHTOKEN parameter is set, attempt to look up the corresponding
+            // If the sessionId parameter is set, attempt to look up the corresponding
             // UserLogin and apply it to the service context
             if (authToken != null) {
                 GenericValue authTokenEntity = EntityUtil.getFirst(