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/*
* Copyright (c) 2008-2012, 2015, 2016 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.net4j.connector;
import org.eclipse.net4j.util.security.INegotiatorAware;
import org.eclipse.net4j.util.security.IPasswordCredentialsProvider;
import org.eclipse.net4j.util.security.ResponseNegotiator;
import org.eclipse.net4j.util.security.ResponseNegotiatorInjector;
import org.eclipse.net4j.util.security.SecurityUtil;
/**
* Injects a configurable response negotiator into selected client connectors.
* <p>
* An example:
*
* <pre>
* IManagedContainer container = IPluginContainer.INSTANCE;
*
* String connectorDescription = "localhost:2036";
* String userID = "name";
* String password = "secret";
*
* IPasswordCredentialsProvider credentialsProvider = new PasswordCredentialsProvider(userID, password);
*
* container.addPostProcessor(new ConnectorCredentialsInjector(connectorDescription, credentialsProvider));
* IConnector connector = (IConnector)container.getElement("org.eclipse.net4j.connectors", "tcp", connectorDescription);
*
* IChannel channel = connector.openChannel();
* // ...
* </pre>
*
* @author Eike Stepper
* @since 2.0
*/
public class ConnectorCredentialsInjector extends ResponseNegotiatorInjector
{
private String connectorDescription;
/**
* @param connectorDescription
* The description of the IConnector that the negotiator shall be injected into, or <code>null</code> to
* bypass the description check.
*/
public ConnectorCredentialsInjector(String connectorDescription, IPasswordCredentialsProvider credentialsProvider, String algorithmName)
{
super(createNegotiator(credentialsProvider, algorithmName));
this.connectorDescription = connectorDescription;
}
/**
* @param connectorDescription
* The description of the IConnector that the negotiator shall be injected into, or <code>null</code> to
* bypass the description check.
*/
public ConnectorCredentialsInjector(String connectorDescription, IPasswordCredentialsProvider credentialsProvider)
{
this(connectorDescription, credentialsProvider, SecurityUtil.PBE_WITH_MD5_AND_DES);
}
@Override
protected boolean filterElement(String productGroup, String factoryType, String description, INegotiatorAware negotiatorAware)
{
if (negotiatorAware instanceof IConnector)
{
IConnector connector = (IConnector)negotiatorAware;
if (connector.isClient())
{
return filterConnectorDescription(description);
}
}
return false;
}
protected boolean filterConnectorDescription(String description)
{
if (connectorDescription == null)
{
return true;
}
return connectorDescription.equals(description);
}
private static ResponseNegotiator createNegotiator(IPasswordCredentialsProvider credentialsProvider, String algorithmName)
{
ResponseNegotiator negotiator = new ResponseNegotiator();
negotiator.setCredentialsProvider(credentialsProvider);
negotiator.setEncryptionAlgorithmName(algorithmName);
return negotiator;
}
}
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