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/*-
* ============LICENSE_START=======================================================
* ONAP-PAP-REST
* ================================================================================
* Copyright (C) 2017-2019 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=========================================================
*/
package org.onap.policy.pap.xacml.restAuth;
import com.att.research.xacml.util.XACMLProperties;
import java.nio.charset.StandardCharsets;
import java.util.Base64;
import java.util.StringTokenizer;
import org.onap.policy.common.logging.eelf.MessageCodes;
import org.onap.policy.common.logging.eelf.PolicyLogger;
import org.onap.policy.rest.XacmlRestProperties;
import org.onap.policy.utils.PeCryptoUtils;
public class AuthenticationService {
private String papId = XACMLProperties.getProperty(XacmlRestProperties.PROP_PAP_USERID);
private String papPass = null;
/**
* Authenticate.
*
* @param authCredentials the auth credentials
* @return true, if successful
*/
public boolean authenticate(String authCredentials) {
if (null == authCredentials) {
return false;
}
// header value format will be "Basic encodedstring" for Basic authentication.
final String encodedUserPassword = authCredentials.replaceFirst("Basic" + " ", "");
String usernameAndPassword = null;
try {
String secretKey = XACMLProperties.getProperty(XacmlRestProperties.PROP_AES_KEY);
PeCryptoUtils.initAesKey(secretKey);
papPass = PeCryptoUtils.decrypt(XACMLProperties.getProperty(XacmlRestProperties.PROP_PAP_PASS));
} catch (Exception e) {
PolicyLogger.error(e);
}
try {
byte[] decodedBytes = Base64.getDecoder().decode(encodedUserPassword);
usernameAndPassword = new String(decodedBytes, StandardCharsets.UTF_8);
} catch (Exception e) {
PolicyLogger.error(MessageCodes.ERROR_SYSTEM_ERROR, e, "AuthenticationService",
"Exception decoding username and password");
return false;
}
try {
final StringTokenizer tokenizer = new StringTokenizer(usernameAndPassword, ":");
final String username = tokenizer.nextToken();
final String password = tokenizer.nextToken();
return papId.equals(username) && papPass.equals(password);
} catch (Exception e) {
PolicyLogger.error(MessageCodes.ERROR_SYSTEM_ERROR, e, "AuthenticationService",
"Exception authenticating user");
return false;
}
}
}
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