/*
 * Copyright (C) 2003 Erik Swenson - eswenson@opensourcesoft.net
 * 
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License as published by the Free
 * Software Foundation; either version 2 of the License, or (at your option)
 * any later version.
 * 
 * This program is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
 * more details.
 * 
 * You should have received a copy of the GNU General Public License along with
 * this program; if not, write to the Free Software Foundation, Inc., 59 Temple
 * Place - Suite 330, Boston, MA 02111-1307, USA.
 *  
 */

package org.efs.openreports.interceptors;

import com.opensymphony.xwork.*;
import com.opensymphony.xwork.interceptor.Interceptor;
import com.opensymphony.xwork.interceptor.component.ComponentManager;

import org.efs.openreports.objects.ReportUser;
import org.efs.openreports.providers.SchedulerProvider;
import org.efs.openreports.providers.SchedulerProviderAware;
import org.efs.openreports.util.LocalStrings;

public class SecurityInterceptor implements Interceptor, SchedulerProviderAware
{
	private boolean loggedIn;
	private boolean adminUser;

	private SchedulerProvider schedulerProvider;

	public String intercept(ActionInvocation actionInvocation) throws Exception
	{
		ComponentManager container =
			(ComponentManager) ActionContext.getContext().get(
				"com.opensymphony.xwork.interceptor.component.ComponentManager");

		if (container != null)
		{
			container.initializeObject(this);
		}

		if (!isAuthorized(actionInvocation))
		{
			return Action.LOGIN;
		}

		ActionContext.getContext().getValueStack().push(this);

		return actionInvocation.invoke();
	}

	protected boolean isAuthorized(ActionInvocation actionInvocation)
	{
		ReportUser user =
			(ReportUser) actionInvocation
				.getInvocationContext()
				.getSession()
				.get(
				"user");

		if (user == null)
		{
			ActionSupport action = (ActionSupport) actionInvocation.getAction();
			action.addActionError(LocalStrings.getString(LocalStrings.ERROR_NOTLOGGEDIN));

			loggedIn = false;

			return false;
		}

		loggedIn = true;
		adminUser = user.isAdmin();

		return true;
	}

	public void destroy()
	{
	}

	public void init()
	{
	}

	public boolean isAdminUser()
	{
		return adminUser;
	}

	public void setAdminUser(boolean adminUser)
	{
		this.adminUser = adminUser;
	}

	public boolean isLoggedIn()
	{
		return loggedIn;
	}

	public void setLoggedIn(boolean loggedIn)
	{
		this.loggedIn = loggedIn;
	}

	public boolean isSchedulerAvailable()
	{
		if (schedulerProvider != null)
			return true;
		return false;
	}

	public void setSchedulerProvider(SchedulerProvider schedulerProvider)
	{
		this.schedulerProvider = schedulerProvider;
	}
}