| /* |
| * 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.yarn.appMaster.http; |
| |
| import java.util.HashMap; |
| import java.util.Map; |
| |
| import javax.servlet.http.HttpServletRequest; |
| import javax.ws.rs.core.SecurityContext; |
| |
| import org.apache.drill.exec.server.rest.auth.DrillUserPrincipal; |
| import org.apache.drill.yarn.appMaster.Dispatcher; |
| import org.apache.drill.yarn.core.DrillOnYarnConfig; |
| import org.glassfish.jersey.server.ResourceConfig; |
| |
| import com.typesafe.config.Config; |
| |
| /** |
| * Base class for a tree of web pages (or REST resources) represented |
| * as POJOs. Since the AM web UI is simple, this is the most convenient, |
| * compact way to implement the UI. |
| */ |
| |
| public class PageTree extends ResourceConfig { |
| // These items are a bit clumsy. We need them, but we can't make them |
| // instance variables without a bunch of messiness in the page classes. |
| // So, we let them be static. No harm in setting them multiple times. |
| |
| static Dispatcher dispatcher; |
| static Config config; |
| |
| public PageTree(Dispatcher dispatcher) { |
| PageTree.dispatcher = dispatcher; |
| config = DrillOnYarnConfig.config(); |
| } |
| |
| /** |
| * Creates a FreeMarker model that contains two top-level items: |
| * the model itself (as in the default implementation) and the |
| * cluster name (used as a title on each UI page.) |
| * |
| * @param base |
| * @return |
| */ |
| |
| public static Map<String, Object> toModel(SecurityContext sc, Object base) { |
| return toModel(sc, base, null); |
| } |
| |
| public static Map<String, Object> toModel(SecurityContext sc, Object base, HttpServletRequest request) { |
| Map<String, Object> model = new HashMap<>(); |
| model.put("model", base); |
| if (request != null) { |
| model.put(WebConstants.CSRF_TOKEN, WebUtils.getCsrfTokenFromHttpRequest(request)); |
| } |
| return toMapModel(sc, model); |
| } |
| |
| public static Map<String, Object> toMapModel(SecurityContext sc, |
| Map<String, Object> model) { |
| model.put("clusterName", config.getString(DrillOnYarnConfig.APP_NAME)); |
| boolean useAuth = AMSecurityManagerImpl.isEnabled(); |
| final boolean isUserLoggedIn = (useAuth) |
| ? AuthDynamicFeature.isUserLoggedIn(sc) : false; |
| model.put("showLogin", useAuth && !isUserLoggedIn); |
| model.put("showLogout", isUserLoggedIn); |
| model.put("docsLink", config.getString(DrillOnYarnConfig.HTTP_DOCS_LINK)); |
| String userName = isUserLoggedIn ? sc.getUserPrincipal().getName() |
| : DrillUserPrincipal.ANONYMOUS_USER; |
| model.put("loggedInUserName", userName); |
| return model; |
| } |
| } |