001 /** 002 * Licensed to the Apache Software Foundation (ASF) under one or more 003 * contributor license agreements. See the NOTICE file distributed with 004 * this work for additional information regarding copyright ownership. 005 * The ASF licenses this file to You under the Apache License, Version 2.0 006 * (the "License"); you may not use this file except in compliance with 007 * the License. You may obtain a copy of the License at 008 * 009 * http://www.apache.org/licenses/LICENSE-2.0 010 * 011 * Unless required by applicable law or agreed to in writing, software 012 * distributed under the License is distributed on an "AS IS" BASIS, 013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 014 * See the License for the specific language governing permissions and 015 * limitations under the License. 016 */ 017 018 package org.apache.activemq.jaas; 019 020 import java.io.IOException; 021 import java.security.cert.X509Certificate; 022 023 import javax.security.auth.callback.Callback; 024 import javax.security.auth.callback.CallbackHandler; 025 import javax.security.auth.callback.UnsupportedCallbackException; 026 027 /** 028 * A Standard JAAS callback handler for SSL certificate requests. Will only 029 * handle callbacks of type CertificateCallback. 030 * 031 * @author sepandm@gmail.com (Sepand) 032 */ 033 public class JaasCertificateCallbackHandler implements CallbackHandler { 034 final X509Certificate certificates[]; 035 036 /** 037 * Basic constructor. 038 * 039 * @param cert The certificate returned when calling back. 040 */ 041 public JaasCertificateCallbackHandler(X509Certificate certs[]) { 042 certificates = certs; 043 } 044 045 /** 046 * Overriding handle method to handle certificates. 047 * 048 * @param callbacks The callbacks requested. 049 * @throws IOException 050 * @throws UnsupportedCallbackException Thrown if an unkown Callback type is 051 * encountered. 052 */ 053 public void handle(Callback[] callbacks) throws IOException, UnsupportedCallbackException { 054 for (int i = 0; i < callbacks.length; i++) { 055 Callback callback = callbacks[i]; 056 if (callback instanceof CertificateCallback) { 057 CertificateCallback certCallback = (CertificateCallback)callback; 058 059 certCallback.setCertificates(certificates); 060 061 } else { 062 throw new UnsupportedCallbackException(callback); 063 } 064 } 065 } 066 }