jforum example source code file (AdminAction.java)

This example jforum source code file (AdminAction.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Java - jforum tags/keywords

adminaction, bytearrayoutputstream, command, exception, exception, forumdao, inputstream, io, minor, net, network, outputstream, permissioncontrol, string, string, template, urlconnection

The jforum AdminAction.java source code

/*
 * Copyright (c) JForum Team
 * All rights reserved.
 * 
 * Redistribution and use in source and binary forms, 
 * with or without modification, are permitted provided 
 * that the following conditions are met:
 * 
 * 1) Redistributions of source code must retain the above 
 * copyright notice, this list of conditions and the 
 * following  disclaimer.
 * 2)  Redistributions in binary form must reproduce the 
 * above copyright notice, this list of conditions and 
 * the following disclaimer in the documentation and/or 
 * other materials provided with the distribution.
 * 3) Neither the name of "Rafael Steil" nor 
 * the names of its contributors may be used to endorse 
 * or promote products derived from this software without 
 * specific prior written permission.
 * 
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT 
 * HOLDERS AND CONTRIBUTORS "AS IS" AND ANY 
 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, 
 * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 
 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR 
 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL 
 * THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE 
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES 
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, 
 * OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER 
 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER 
 * IN CONTRACT, STRICT LIABILITY, OR TORT 
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN 
 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 
 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE
 * 
 * This file creation date: 17/01/2004 / 19:34:01
 * The JForum Project
 * http://www.jforum.net
 */
package net.jforum.view.admin;


import java.io.ByteArrayOutputStream;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.URL;
import java.net.URLConnection;

import net.jforum.Command;
import net.jforum.JForumExecutionContext;
import net.jforum.SessionFacade;
import net.jforum.api.integration.mail.pop.POPListener;
import net.jforum.context.RequestContext;
import net.jforum.context.ResponseContext;
import net.jforum.dao.DataAccessDriver;
import net.jforum.dao.ForumDAO;
import net.jforum.entities.UserSession;
import net.jforum.repository.ModulesRepository;
import net.jforum.repository.SecurityRepository;
import net.jforum.security.PermissionControl;
import net.jforum.security.SecurityConstants;
import net.jforum.util.preferences.ConfigKeys;
import net.jforum.util.preferences.SystemGlobals;
import net.jforum.util.preferences.TemplateKeys;
import freemarker.template.SimpleHash;
import freemarker.template.Template;

/**
 * @author Rafael Steil
 * @version $Id: AdminAction.java,v 1.23 2007/02/25 13:48:34 rafaelsteil Exp $
 */
public class AdminAction extends Command {

	/** 
	 * @see net.jforum.Command#list()
	 */
	public void list()  
	{
		this.login();
	}
	
	public void login()
	{
		UserSession us = SessionFacade.getUserSession();
		PermissionControl pc = SecurityRepository.get(us.getUserId());
		
		if (!SessionFacade.isLogged() 
				|| pc == null 
				|| !pc.canAccess(SecurityConstants.PERM_ADMINISTRATION)) {
			String returnPath =  this.request.getContextPath() + "/admBase/login" 
				+ SystemGlobals.getValue(ConfigKeys.SERVLET_EXTENSION);

			JForumExecutionContext.setRedirect(this.request.getContextPath() 
				+ "/jforum" 
				+ SystemGlobals.getValue(ConfigKeys.SERVLET_EXTENSION) 
				+ "?module=user&action=login&returnPath="
				+ returnPath);
		}
		else {
			this.setTemplateName(TemplateKeys.ADMIN_INDEX);
		}
	}
	
	public void menu()
	{
		if (this.checkAdmin()) {
			this.setTemplateName(TemplateKeys.ADMIN_MENU);
		}
	}
	
	public void main() throws Exception
	{
		if (this.checkAdmin()) {
			this.setTemplateName(TemplateKeys.ADMIN_MAIN);
			
			// Checks if the install module is still active
			this.context.put("installModuleExists", ModulesRepository.getModuleClass("install") != null);
			this.context.put("sessions", SessionFacade.getAllSessions());
			
			ForumDAO dao = DataAccessDriver.getInstance().newForumDAO();
			this.context.put("stats", dao.getBoardStatus());
			
			this.checkBoardVersion();
		}
	}
	
	public void fetchMail() throws Exception
	{
		new Thread(new Runnable() {
			public void run() {
				try {
					new POPListener().execute(null);
				}
				catch (Exception e) {
					e.printStackTrace();
				}
			}
		}).start();
		
		this.main();
	}
	
	private void checkBoardVersion()
	{
		String data = this.readVersionFromSocket();
		
		if (data == null || data.trim().length() == 0) {
			this.context.put("developmentVersion", false);
			return;
		}
		
		int index = data.indexOf('\n');
		
		String version = data.substring(0, index).trim();
		String notes = data.substring(index + 1, data.length());
		
		this.matchVersion(version);
		this.context.put("notes", notes);
	}
	
	private void matchVersion(String latest)
	{
		String current = SystemGlobals.getValue(ConfigKeys.VERSION);
		
		String[] currentParts = current.split("\\.");
		String[] latestParts = latest.split("\\.");
		
		if (currentParts[2].indexOf('-') > -1) {
			currentParts[2] = currentParts[2].substring(0, currentParts[2].indexOf('-'));
		}
		
		if (Integer.parseInt(latestParts[2]) > Integer.parseInt(currentParts[2]) // Revision
			|| Integer.parseInt(latestParts[1]) > Integer.parseInt(currentParts[1]) // Minor
			|| Integer.parseInt(latestParts[0]) > Integer.parseInt(currentParts[0])) { // Major
			this.context.put("upToDate", false);
		}
		else {
			this.context.put("upToDate", true);
		}
		
		this.context.put("latestVersion", latest);
		this.context.put("currentVersion", current);
		this.context.put("developmentVersion", current.indexOf("-dev") > -1);
	}
	
	private String readVersionFromSocket()
	{
		InputStream is = null;
		OutputStream os = null;
		
		String data = null;
		
		try {
			URL url = new URL(SystemGlobals.getValue(ConfigKeys.JFORUM_VERSION_URL));
			URLConnection conn = url.openConnection();
			
			is = conn.getInputStream();
			os = new ByteArrayOutputStream();
			
			int available = is.available();
			
			while (available > 0) {
				byte[] b = new byte[available];
				is.read(b);
				os.write(b);
				
				available = is.available();
			}
			
			data = os.toString();
		}
		catch (Exception e) {
			e.printStackTrace();
		}
		finally {
			if (is != null) {
				try {  is.close(); } catch (Exception e) {}
			}
			
			if (os != null) {
				try { os.close(); } catch (Exception e) {}
			}
		}
		
		return data;
	}
	
	public boolean checkAdmin()
	{
		int userId = SessionFacade.getUserSession().getUserId();
		
		if (SecurityRepository.get(userId).canAccess(SecurityConstants.PERM_ADMINISTRATION)) {
			return true;
		}
		
		JForumExecutionContext.setRedirect(JForumExecutionContext.getRequest().getContextPath() 
			+ "/admBase/login"
			+ SystemGlobals.getValue(ConfigKeys.SERVLET_EXTENSION));
		
		super.ignoreAction();

		return false;
	}

	public Template process(RequestContext request, ResponseContext response, 
			SimpleHash context)
	{
		return super.process(request, response, context);
	}
}