UserManagerImpl.java

/*******************************************************************************
 * Copyright 2011 Pascal Metrics
 * 
 * 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 org.opensafety.hishare.managers.implementation.http;

import java.util.Date;
import java.util.Calendar;
import java.util.UUID;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.opensafety.hishare.dao.interfaces.UserDao;
import org.opensafety.hishare.managers.interfaces.UserManager;
import org.opensafety.hishare.model.User;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.ImportResource;

@Configuration
public class UserManagerImpl implements UserManager
{
	@Autowired
	UserDao userDao;
	
	Log log = LogFactory.getLog(this.getClass());
	
	//in hours
	private @Value("${managers.authenticationExpiration}") int authenticationExpiration;
	
	public UserManagerImpl()
	{
	}
	
	public User getByUsername(String username)
	{
		return userDao.getByName(username);
	}
	
	public void persistUser(User user)
	{
		userDao.addUser(user);
	}
	
	public int getAuthenticationExpiration()
	{
		return authenticationExpiration;
	}
	
	public void setAuthenticationExpiration(int authenticationExpiration)
	{
		this.authenticationExpiration = authenticationExpiration;
	}
	
	public String renewUserAuthentication(String username)
	{
		Calendar expirationDate = Calendar.getInstance();
		expirationDate.add(Calendar.HOUR, authenticationExpiration);
		
		User authenticatee = userDao.getByName(username);
		authenticatee.setAuthenticationId(UUID.randomUUID().toString());
		authenticatee.setAuthenticationExpiration(expirationDate.getTime());
		
		userDao.updateUser(authenticatee);
		
		return authenticatee.getAuthenticationId();
	}
	
	public void updateUser(User user)
	{
		userDao.updateUser(user);
	}
	
	public boolean userExists(String username)
	{
		return userDao.userExists(username);
	}
	
	public boolean verifyAuthentication(String username, String authenticationId)
	{
		User user = userDao.getByName(username);
		
		if(user == null)
		{
			return false;
		}
		
		Date expiration = user.getAuthenticationExpiration();
		Date now = Calendar.getInstance().getTime();
		
		return (user.getAuthenticationId().equals(authenticationId)) && now.before(expiration);
	}
}