Add isPushRequest() check to VaadinServletService.isOtherRequest() (#11556)

* Prevents VaadinService from creating a new session for push requests
* Also unify behaviour when UI is not found in session (log and return)

Change-Id: Iea0e4ae5e0b5fa81404f688aa6d92d16343ebd26

4 files changed, 13 insertions, 13 deletions

diff --git a/server/src/com/vaadin/server/VaadinServletService.java b/server/src/com/vaadin/server/VaadinServletService.java
index ba78efa9bb..4ae70c1c3b 100644
--- a/server/src/com/vaadin/server/VaadinServletService.java
+++ b/server/src/com/vaadin/server/VaadinServletService.java
@@ -190,8 +190,9 @@ public class VaadinServletService extends VaadinService {
                 && !ServletUIInitHandler.isUIInitRequest(request)
                 && !ServletPortletHelper.isFileUploadRequest(request)
                 && !ServletPortletHelper.isHeartbeatRequest(request)
-                && !ServletPortletHelper.isPublishedFileRequest(request) && !ServletPortletHelper
-                    .isUIDLRequest(request));
+                && !ServletPortletHelper.isPublishedFileRequest(request)
+                && !ServletPortletHelper.isUIDLRequest(request) && !ServletPortletHelper
+                    .isPushRequest(request));
     }
 
     @Override
diff --git a/server/src/com/vaadin/server/communication/PushHandler.java b/server/src/com/vaadin/server/communication/PushHandler.java
index b2994d547f..15da4c3707 100644
--- a/server/src/com/vaadin/server/communication/PushHandler.java
+++ b/server/src/com/vaadin/server/communication/PushHandler.java
@@ -82,7 +82,10 @@ public class PushHandler implements AtmosphereHandler {
         try {
             UI ui = service.findUI(vaadinRequest);
             if (ui == null) {
-                throw new RuntimeException("UI not found!");
+                // This should not happen
+                getLogger().warning(
+                        "Could not find the requested UI in session");
+                return;
             }
             assert ui.getPushConnection() instanceof AtmospherePushConnection;
             AtmospherePushConnection connection = (AtmospherePushConnection) ui
diff --git a/server/src/com/vaadin/server/communication/ServerRpcHandler.java b/server/src/com/vaadin/server/communication/ServerRpcHandler.java
index da146abe3f..6f67cee680 100644
--- a/server/src/com/vaadin/server/communication/ServerRpcHandler.java
+++ b/server/src/com/vaadin/server/communication/ServerRpcHandler.java
@@ -77,7 +77,7 @@ public class ServerRpcHandler implements Serializable {
      * variable changes) and executes the calls.
      * 
      * @param ui
-     *            The {@link UI} receiving the calls.
+     *            The {@link UI} receiving the calls. Cannot be null.
      * @param reader
      *            The {@link Reader} used to read the JSON.
      * @param request
@@ -91,15 +91,6 @@ public class ServerRpcHandler implements Serializable {
      */
     public void handleRpc(UI ui, Reader reader, VaadinRequest request)
             throws IOException, InvalidUIDLSecurityKeyException, JSONException {
-
-        // Verify that there's an UI
-        if (ui == null) {
-            // This should not happen, no windows exists but
-            // session is still open.
-            getLogger().warning("Could not get UI for session");
-            return;
-        }
-
         ui.getSession().setLastRequestTimestamp(System.currentTimeMillis());
 
         // Change all variables based on request parameters
diff --git a/server/src/com/vaadin/server/communication/UidlRequestHandler.java b/server/src/com/vaadin/server/communication/UidlRequestHandler.java
index 32f9df3eff..ef627a818b 100644
--- a/server/src/com/vaadin/server/communication/UidlRequestHandler.java
+++ b/server/src/com/vaadin/server/communication/UidlRequestHandler.java
@@ -69,6 +69,11 @@ public class UidlRequestHandler extends SynchronizedRequestHandler {
             return false;
         }
         UI uI = session.getService().findUI(request);
+        if (uI == null) {
+            // This should not happen
+            getLogger().warning("Could not find the requested UI in session");
+            return true;
+        }
 
         checkWidgetsetVersion(request);
         String requestThemeName = request.getParameter("theme");