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/*
* Copyright (c) 2014 Hewlett-Packard Development Company, L.P. 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
*/
package org.opendaylight.aaa;
import java.util.Dictionary;
import java.util.HashMap;
import java.util.Hashtable;
import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;
import org.apache.felix.dm.Component;
import org.opendaylight.aaa.api.AuthenticationException;
import org.opendaylight.aaa.api.ClientService;
import org.osgi.service.cm.ConfigurationException;
import org.osgi.service.cm.ManagedService;
/**
* A configuration-based client manager.
*
* @author liemmn
*
*/
public class ClientManager implements ClientService, ManagedService {
static final String CLIENTS = "authorizedClients";
private static final String CLIENTS_FORMAT_ERR = "Clients are space-delimited in the form of <client_id>:<client_secret>";
private static final String UNAUTHORIZED_CLIENT_ERR = "Unauthorized client";
// Defaults (needed only for non-Karaf deployments)
static final Dictionary<String, String> defaults = new Hashtable<>();
static {
defaults.put(CLIENTS, "dlux:secrete");
}
private final Map<String, String> clients = new ConcurrentHashMap<>();
// This should be a singleton
ClientManager() {
}
// Called by DM when all required dependencies are satisfied.
void init(Component c) throws ConfigurationException {
reconfig(defaults);
}
@Override
public void validate(String clientId, String clientSecret) throws AuthenticationException {
// TODO: Post-Helium, we will support a CRUD API
if (!clients.containsKey(clientId)) {
throw new AuthenticationException(UNAUTHORIZED_CLIENT_ERR);
}
if (!clients.get(clientId).equals(clientSecret)) {
throw new AuthenticationException(UNAUTHORIZED_CLIENT_ERR);
}
}
@Override
public void updated(Dictionary<String, ?> props) throws ConfigurationException {
if (props == null) {
props = defaults;
}
reconfig(props);
}
// Reconfigure the client map...
private void reconfig(@SuppressWarnings("rawtypes") Dictionary props)
throws ConfigurationException {
try {
String authorizedClients = (String) props.get(CLIENTS);
Map<String, String> newClients = new HashMap<>();
if (authorizedClients != null) {
for (String client : authorizedClients.split(" ")) {
String[] aClient = client.split(":");
newClients.put(aClient[0], aClient[1]);
}
}
clients.clear();
clients.putAll(newClients);
} catch (Throwable t) {
throw new ConfigurationException(null, CLIENTS_FORMAT_ERR);
}
}
}
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