001/*
002 * The contents of this file are subject to the terms of the Common Development and
003 * Distribution License (the License). You may not use this file except in compliance with the
004 * License.
005 *
006 * You can obtain a copy of the License at legal/CDDLv1.0.txt. See the License for the
007 * specific language governing permission and limitations under the License.
008 *
009 * When distributing Covered Software, include this CDDL Header Notice in each file and include
010 * the License file at legal/CDDLv1.0.txt. If applicable, add the following below the CDDL
011 * Header, with the fields enclosed by brackets [] replaced by your own identifying
012 * information: "Portions copyright [year] [name of copyright owner]".
013 *
014 * Copyright 2014-2015 ForgeRock AS.
015 */
016
017package org.forgerock.openig.security;
018
019import static java.lang.String.*;
020import static org.forgerock.openig.util.JsonValues.*;
021
022import java.security.KeyStore;
023
024import javax.net.ssl.KeyManager;
025import javax.net.ssl.KeyManagerFactory;
026
027import org.forgerock.json.JsonValue;
028import org.forgerock.openig.heap.GenericHeaplet;
029import org.forgerock.openig.heap.HeapException;
030
031/**
032 * Represents an SSL Java {@link KeyManager}.
033 * <pre>
034 *     {@code
035 *     {
036 *         "name": "MyKeyManager",
037 *         "type": "KeyManager",
038 *         "config": {
039 *             "keystore": "MyKeyStore",
040 *             "password": "secret",
041 *             "alg": "SunX509"
042 *         }
043 *     }
044 *     }
045 * </pre>
046 * <ul>
047 *     <li>{@literal keystore}: Reference a KeyStore heap object (string, required).</li>
048 *     <li>{@literal password}: credential required to read private keys from the key store (expression, required).</li>
049 *     <li>{@literal alg}: key manager algorithm (defaults to platform's default type) (string, optional).</li>
050 * </ul>
051 * @since 3.1
052 */
053public class KeyManagerHeaplet extends GenericHeaplet {
054
055    @Override
056    public Object create() throws HeapException {
057        JsonValue storeRef = config.get("keystore").required();
058        KeyStore keyStore = heap.resolve(storeRef, KeyStore.class);
059        String password = evaluate(config.get("password").required());
060        String algorithm = config.get("alg").defaultTo(KeyManagerFactory.getDefaultAlgorithm()).asString();
061
062        // Initialize a KeyManagerFactory
063        KeyManagerFactory factory;
064        try {
065            factory = KeyManagerFactory.getInstance(algorithm);
066            factory.init(keyStore, password.toCharArray());
067        } catch (Exception e) {
068            throw new HeapException(loadingError(algorithm, storeRef), e);
069        }
070
071        // Retrieve manager
072        KeyManager[] managers = factory.getKeyManagers();
073        if (managers.length == 1) {
074            return managers[0];
075        } else if (managers.length > 1) {
076            logger.warning("Only the first KeyManager will be selected");
077            return managers[0];
078        }
079        throw new HeapException(loadingError(algorithm, storeRef));
080    }
081
082    private String loadingError(final String algorithm, final JsonValue reference) {
083        return format("Cannot build KeyManager[alg:%s] from KeyStore %s",
084                      algorithm,
085                      reference.asString());
086    }
087}