[POLICY-73] replace openecomp for policy-engine

Change-Id: I54072f6bcd388c0e05562614ee89b4ae7ad67004
Signed-off-by: Guo Ruijing <ruijing.guo@intel.com>
Signed-off-by: Pamela Dragosh <pdragosh@research.att.com>

1 files changed, 63 insertions, 0 deletions

diff --git a/ONAP-PAP-REST/src/main/java/org/onap/policy/pap/xacml/restAuth/AuthenticationService.java b/ONAP-PAP-REST/src/main/java/org/onap/policy/pap/xacml/restAuth/AuthenticationService.java
new file mode 100644
index 000000000..d0bfa2f8d
--- /dev/null
+++ b/ONAP-PAP-REST/src/main/java/org/onap/policy/pap/xacml/restAuth/AuthenticationService.java
@@ -0,0 +1,63 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * ONAP-PAP-REST
+ * ================================================================================
+ * Copyright (C) 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=========================================================
+ */
+
+package org.onap.policy.pap.xacml.restAuth;
+
+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 com.att.research.xacml.util.XACMLProperties;
+
+public class AuthenticationService {
+	private String papID = XACMLProperties.getProperty(XACMLRestProperties.PROP_PAP_USERID);
+	private String papPass = XACMLProperties.getProperty(XACMLRestProperties.PROP_PAP_PASS);
+	
+	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 {
+			byte[] decodedBytes = Base64.getDecoder().decode(encodedUserPassword);
+			usernameAndPassword = new String(decodedBytes, "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();
+
+			boolean authenticationStatus = papID.equals(username)	&& papPass.equals(password);
+			return authenticationStatus;
+		} catch (Exception e){
+			PolicyLogger.error(MessageCodes.ERROR_SYSTEM_ERROR, e, "AuthenticationService", "Exception authenticating user");
+			return false;
+		}
+	}
+	
+}