Github user arina-ielchiieva commented on a diff in the pull request:
https://github.com/apache/drill/pull/1040#discussion_r154691438
--- Diff:
exec/java-exec/src/main/java/org/apache/drill/exec/server/rest/auth/DrillErrorHandler.java
---
@@ -0,0 +1,45 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.drill.exec.server.rest.auth;
+
+import org.apache.drill.exec.server.rest.WebServerConstants;
+import org.eclipse.jetty.server.handler.ErrorHandler;
+
+import javax.servlet.http.HttpServletRequest;
+import java.io.IOException;
+import java.io.Writer;
+
+/**
+ * Custom ErrorHandler class for Drill's WebServer to have better error
message in case when SPNEGO login failed and
+ * what to do next. In all other cases this would use the generic error
page.
+ */
+public class DrillErrorHandler extends ErrorHandler {
+
+ @Override
+ protected void writeErrorPageMessage(HttpServletRequest request, Writer
writer,
+ int code, String message, String
uri) throws IOException {
+
+ super.writeErrorPageMessage(request, writer, code, message, uri);
+
+ if (uri.equals(WebServerConstants.SPENGO_LOGIN_RESOURCE_PATH)) {
--- End diff --
We need to redirect user to error ftl rather then constructing formatting
inside of Java. Formatting should be done on freemarker side.
---
