1 files changed, 90 insertions, 0 deletions
diff --git a/shiro/src/main/java/org/onap/aaf/cadi/shiro/AAFAuthenticationInfo.java b/shiro/src/main/java/org/onap/aaf/cadi/shiro/AAFAuthenticationInfo.java
new file mode 100644
index 0000000..a1d304b
--- /dev/null
+++ b/shiro/src/main/java/org/onap/aaf/cadi/shiro/AAFAuthenticationInfo.java
@@ -0,0 +1,90 @@
+/**
+ * ============LICENSE_START====================================================
+ * org.onap.aaf
+ * ===========================================================================
+ * Copyright (c) 2018 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.aaf.cadi.shiro;
+
+import java.nio.ByteBuffer;
+import java.security.NoSuchAlgorithmException;
+import java.security.SecureRandom;
+
+import org.apache.shiro.authc.AuthenticationInfo;
+import org.apache.shiro.authc.AuthenticationToken;
+import org.apache.shiro.authc.UsernamePasswordToken;
+import org.apache.shiro.subject.PrincipalCollection;
+import org.onap.aaf.cadi.Access;
+import org.onap.aaf.cadi.Hash;
+import org.onap.aaf.cadi.Access.Level;
+
+public class AAFAuthenticationInfo implements AuthenticationInfo {
+	private static final long serialVersionUID = -1502704556864321020L;
+	// We assume that Shiro is doing Memory Only, and this salt is not needed cross process
+	private final static int salt = new SecureRandom().nextInt(); 
+
+	private final AAFPrincipalCollection apc;
+	private final byte[] hash;
+	private Access access;
+
+	public AAFAuthenticationInfo(Access access, String username, String password) {
+		this.access = access;
+		apc = new AAFPrincipalCollection(username);
+		hash = getSaltedCred(password);
+	}
+	@Override
+	public byte[] getCredentials() {
+		access.log(Level.DEBUG, "AAFAuthenticationInfo.getCredentials");
+		return hash;
+	}
+
+	@Override
+	public PrincipalCollection getPrincipals() {
+		access.log(Level.DEBUG, "AAFAuthenticationInfo.getPrincipals");
+		return apc;
+	}
+
+	public boolean matches(AuthenticationToken atoken) {
+		if(atoken instanceof UsernamePasswordToken) {
+			UsernamePasswordToken upt = (UsernamePasswordToken)atoken;
+			if(apc.getPrimaryPrincipal().getName().equals(upt.getPrincipal())) {
+				byte[] newhash = getSaltedCred(new String(upt.getPassword()));
+				if(newhash.length==hash.length) {
+					for(int i=0;i<hash.length;++i) {
+						if(hash[i]!=newhash[i]) {
+							return false;
+						}
+					}
+					return true;
+				}
+			}
+		}
+		return false;
+	}
+	
+	private byte[] getSaltedCred(String password) {
+		byte[] pbytes = password.getBytes();
+		ByteBuffer bb = ByteBuffer.allocate(pbytes.length+Integer.SIZE/8);
+		bb.asIntBuffer().put(salt);
+		bb.put(password.getBytes());
+		try {
+			return Hash.hashSHA256(bb.array());
+		} catch (NoSuchAlgorithmException e) {
+			return new byte[0]; // should never get here
+		}
+	}
+}