Java tutorial
/* * * REMEDIATE THE FLAG * Copyright 2018 - Andrea Scaduto * remediatetheflag@gmail.com * * Licensed 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 com.remediatetheflag.global.actions.auth.user; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import com.google.gson.JsonElement; import com.google.gson.JsonObject; import com.remediatetheflag.global.actions.IAction; import com.remediatetheflag.global.messages.MessageGenerator; import com.remediatetheflag.global.model.ExerciseInstance; import com.remediatetheflag.global.model.User; import com.remediatetheflag.global.persistence.HibernatePersistenceFacade; import com.remediatetheflag.global.utils.Constants; public class GetExerciseHistoryZipFileAction extends IAction { private HibernatePersistenceFacade hpc = new HibernatePersistenceFacade(); @Override public void doAction(HttpServletRequest request, HttpServletResponse response) throws Exception { User sessionUser = (User) request.getSession().getAttribute(Constants.ATTRIBUTE_SECURITY_CONTEXT); JsonObject json = (JsonObject) request.getAttribute(Constants.REQUEST_JSON); JsonElement jsonElement = json.get(Constants.ACTION_PARAM_ID); Integer idExercise = jsonElement.getAsInt(); ExerciseInstance instance = hpc.getCompletedExerciseInstanceWithFileForUser(sessionUser.getIdUser(), idExercise); if (null != instance) { MessageGenerator.sendFileMessage(instance, response); } else { logger.error("Exercise " + idExercise + " not found for user " + sessionUser.getIdUser()); MessageGenerator.sendErrorMessage("NotFound", response); } } }