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/*******************************************************************************
* ============LICENSE_START=======================================================
* org.onap.dmaap
* ================================================================================
* Copyright © 2017 AT&T Intellectual Property. All rights reserved.
* ================================================================================
* 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.
* ============LICENSE_END=========================================================
*
* ECOMP is a trademark and service mark of AT&T Intellectual Property.
*
*******************************************************************************/
package com.att.nsa.cambria.security;
import java.util.LinkedList;
import javax.servlet.http.HttpServletRequest;
import com.att.nsa.cambria.beans.DMaaPContext;
import com.att.nsa.cambria.security.impl.DMaaPOriginalUebAuthenticator;
import com.att.nsa.security.NsaApiKey;
import com.att.nsa.security.NsaAuthenticator;
import com.att.nsa.security.authenticators.OriginalUebAuthenticator;
import com.att.nsa.security.db.NsaApiDb;
import com.att.nsa.security.db.simple.NsaSimpleApiKey;
/**
*
* @author author
*
* @param <K>
*/
public class DMaaPAuthenticatorImpl<K extends NsaApiKey> implements DMaaPAuthenticator<K> {
private final LinkedList<DMaaPAuthenticator<K>> fAuthenticators;
// Setting timeout to a large value for testing purpose.
// private static final long kDefaultRequestTimeWindow = 1000 * 60 * 10; //
// 10 minutes
private static final long kDefaultRequestTimeWindow = 1000 * 60 * 10 * 10 * 10 * 10 * 10;
/**
* Construct the security manager against an API key database
*
* @param db
* the API key db
*/
public DMaaPAuthenticatorImpl(NsaApiDb<K> db) {
this(db, kDefaultRequestTimeWindow);
}
/**
* Construct the security manager against an API key database with a
* specific request time window size
*
* @param db
* the API key db
* @param authTimeWindowMs
* the size of the time window for request authentication
*/
public DMaaPAuthenticatorImpl(NsaApiDb<K> db, long authTimeWindowMs) {
fAuthenticators = new LinkedList<DMaaPAuthenticator<K>>();
fAuthenticators.add(new DMaaPOriginalUebAuthenticator<K>(db, authTimeWindowMs));
}
/**
* Authenticate a user's request. This method returns the API key if the
* user is authentic, null otherwise.
*
* @param ctx
* @return an api key record, or null
*/
public K authenticate(DMaaPContext ctx) {
final HttpServletRequest req = ctx.getRequest();
for (DMaaPAuthenticator<K> a : fAuthenticators) {
if (a.qualify(req)) {
final K k = a.isAuthentic(req);
if (k != null)
return k;
}
// else: this request doesn't look right to the authenticator
}
return null;
}
/**
* Get the user associated with the incoming request, or null if the user is
* not authenticated.
*
* @param ctx
* @return
*/
public static NsaSimpleApiKey getAuthenticatedUser(DMaaPContext ctx) {
final DMaaPAuthenticator<NsaSimpleApiKey> m = ctx.getConfigReader().getfSecurityManager();
return m.authenticate(ctx);
}
/**
* method by default returning false
* @param req
* @return false
*/
public boolean qualify(HttpServletRequest req) {
return false;
}
/**
* method by default returning null
* @param req
* @return null
*/
public K isAuthentic(HttpServletRequest req) {
return null;
}
public void addAuthenticator ( DMaaPAuthenticator<K> a )
{
this.fAuthenticators.add(a);
}
}
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