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/*
* Copyright (c) 2004 - 2012 Eike Stepper (Berlin, Germany) and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Eike Stepper - initial API and implementation
*/
package org.eclipse.emf.cdo.spi.server;
import org.eclipse.emf.cdo.server.CDOServerUtil;
import org.eclipse.emf.cdo.server.IRepository;
import org.eclipse.net4j.util.container.IElementProcessor;
import org.eclipse.net4j.util.container.IManagedContainer;
import org.eclipse.net4j.util.factory.ProductCreationException;
import org.eclipse.net4j.util.lifecycle.Lifecycle;
import org.eclipse.net4j.util.security.AuthenticatorFactory;
import org.eclipse.net4j.util.security.IAuthenticator;
import org.eclipse.net4j.util.security.IUserManager;
import org.eclipse.net4j.util.security.SecurityUtil;
import org.eclipse.net4j.util.security.UserManagerFactory;
import java.util.Arrays;
/**
* If the meaning of this type isn't clear, there really should be more of a description here...
*
* @author Eike Stepper
* @since 4.0
*/
public abstract class RepositoryUserManager extends Lifecycle implements IUserManager, IAuthenticator
{
private IManagedContainer container;
private String repositoryName;
protected RepositoryUserManager()
{
}
private void setContainer(IManagedContainer container)
{
this.container = container;
}
private void setRepositoryName(String repositoryName)
{
this.repositoryName = repositoryName;
}
public void addUser(String userID, char[] password)
{
// Cann be overridden in subclasses.
}
public void removeUser(String userID)
{
// Cann be overridden in subclasses.
}
public byte[] encrypt(String userID, byte[] data, String algorithmName, byte[] salt, int count)
throws SecurityException
{
try
{
char[] password = getPassword(userID);
return SecurityUtil.encrypt(data, password, algorithmName, salt, count);
}
catch (RuntimeException ex)
{
throw ex;
}
catch (Exception ex)
{
throw new SecurityException(ex);
}
}
/**
* @since 4.2
*/
public void authenticate(String userID, char[] password) throws SecurityException
{
char[] userPassword = getPassword(userID);
if (!Arrays.equals(password, userPassword))
{
throw new SecurityException("Access denied"); //$NON-NLS-1$
}
}
protected IRepository getRepository(IManagedContainer container, String repositoryName)
{
return CDOServerUtil.getRepository(container, repositoryName);
}
/**
* @since 4.2
*/
protected char[] getPassword(String userID)
{
IRepository repository = getRepository(container, repositoryName);
if (repository == null)
{
throw new SecurityException("Repository not found: " + repositoryName); //$NON-NLS-1$
}
char[] password = getPassword(repository, userID);
if (password == null)
{
throw new SecurityException("No such user: " + userID); //$NON-NLS-1$
}
return password;
}
protected abstract char[] getPassword(IRepository repository, String userID);
public static void prepareContainer(IManagedContainer container, RepositoryUserManagerFactory factory)
{
container.registerFactory(factory);
container.addPostProcessor(new RepositoryInjector());
}
/**
* If the meaning of this type isn't clear, there really should be more of a description here...
*
* @author Eike Stepper
*/
public static abstract class RepositoryUserManagerFactory extends UserManagerFactory
{
protected RepositoryUserManagerFactory(String type)
{
super(type);
}
public final Object create(String description) throws ProductCreationException
{
RepositoryUserManager userManager = doCreate(description);
String repositoryName = getRepositoryName(description);
userManager.setRepositoryName(repositoryName);
return userManager;
}
protected String getRepositoryName(String description)
{
return description;
}
protected abstract RepositoryUserManager doCreate(String description) throws ProductCreationException;
}
/**
* If the meaning of this type isn't clear, there really should be more of a description here...
*
* @author Eike Stepper
* @since 4.2
*/
public static abstract class RepositoryAuthenticatorFactory extends AuthenticatorFactory
{
protected RepositoryAuthenticatorFactory(String type)
{
super(type);
}
public final Object create(String description) throws ProductCreationException
{
RepositoryUserManager userManager = doCreate(description);
String repositoryName = getRepositoryName(description);
userManager.setRepositoryName(repositoryName);
return userManager;
}
protected String getRepositoryName(String description)
{
return description;
}
protected abstract RepositoryUserManager doCreate(String description) throws ProductCreationException;
}
/**
* If the meaning of this type isn't clear, there really should be more of a description here...
*
* @author Eike Stepper
*/
public static class RepositoryInjector implements IElementProcessor
{
public RepositoryInjector()
{
}
public Object process(IManagedContainer container, String productGroup, String factoryType, String description,
Object element)
{
if (element instanceof RepositoryUserManager)
{
RepositoryUserManager userManager = (RepositoryUserManager)element;
userManager.setContainer(container);
}
return element;
}
}
}
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