| package org.apache.turbine.services.crypto; |
| |
| /* ==================================================================== |
| * The Apache Software License, Version 1.1 |
| * |
| * Copyright (c) 2001-2003 The Apache Software Foundation. All rights |
| * reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in |
| * the documentation and/or other materials provided with the |
| * distribution. |
| * |
| * 3. The end-user documentation included with the redistribution, |
| * if any, must include the following acknowledgment: |
| * "This product includes software developed by the |
| * Apache Software Foundation (http://www.apache.org/)." |
| * Alternately, this acknowledgment may appear in the software itself, |
| * if and wherever such third-party acknowledgments normally appear. |
| * |
| * 4. The names "Apache" and "Apache Software Foundation" and |
| * "Apache Turbine" must not be used to endorse or promote products |
| * derived from this software without prior written permission. For |
| * written permission, please contact apache@apache.org. |
| * |
| * 5. Products derived from this software may not be called "Apache", |
| * "Apache Turbine", nor may "Apache" appear in their name, without |
| * prior written permission of the Apache Software Foundation. |
| * |
| * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED |
| * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
| * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR |
| * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF |
| * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND |
| * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
| * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT |
| * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| * SUCH DAMAGE. |
| * ==================================================================== |
| * |
| * This software consists of voluntary contributions made by many |
| * individuals on behalf of the Apache Software Foundation. For more |
| * information on the Apache Software Foundation, please see |
| * <http://www.apache.org/>. |
| */ |
| |
| import java.security.NoSuchAlgorithmException; |
| |
| import java.util.Hashtable; |
| import java.util.Iterator; |
| |
| import org.apache.commons.configuration.Configuration; |
| |
| import org.apache.turbine.services.BaseService; |
| import org.apache.turbine.services.InitializationException; |
| import org.apache.turbine.services.TurbineServices; |
| import org.apache.turbine.services.crypto.provider.JavaCrypt; |
| import org.apache.turbine.services.factory.FactoryService; |
| |
| /** |
| * An implementation of CryptoService that uses either supplied crypto |
| * Algorithms (provided in Turbine.Services.properties) or tries to get them via |
| * the normal java mechanisms if this fails. |
| * |
| * @deprecated Use the Fulcrum Crypto component instead. |
| * @author <a href="mailto:hps@intermeta.de">Henning P. Schmiedehausen</a> |
| * @version $Id$ |
| * |
| */ |
| |
| public class TurbineCryptoService |
| extends BaseService |
| implements CryptoService |
| { |
| /** Key Prefix for our algorithms */ |
| private static final String ALGORITHM = "algorithm"; |
| |
| /** Default Key */ |
| private static final String DEFAULT_KEY = "default"; |
| |
| /** Default Encryption Class */ |
| private static final String DEFAULT_CLASS = |
| JavaCrypt.class.getName(); |
| |
| /** Names of the registered algorithms and the wanted classes */ |
| private Hashtable algos = null; |
| |
| /** A factory to construct CryptoAlgorithm objects */ |
| private FactoryService factoryService = null; |
| |
| /** |
| * There is not much to initialize here. This runs |
| * as early init method. |
| * |
| * @throws InitializationException Something went wrong in the init |
| * stage |
| */ |
| |
| public void init() |
| throws InitializationException |
| { |
| this.algos = new Hashtable(); |
| |
| /* |
| * Set up default (Can be overridden by default key |
| * from the properties |
| */ |
| |
| algos.put(DEFAULT_KEY, DEFAULT_CLASS); |
| |
| /* get the parts of the configuration relevant to us. */ |
| |
| Configuration conf = getConfiguration().subset(ALGORITHM); |
| |
| if (conf != null) |
| { |
| for (Iterator it = conf.getKeys(); it.hasNext();) |
| { |
| String key = (String) it.next(); |
| String val = conf.getString(key); |
| // Log.debug("Registered " + val |
| // + " for Crypto Algorithm " + key); |
| algos.put(key, val); |
| } |
| } |
| |
| try |
| { |
| factoryService = (FactoryService) TurbineServices.getInstance(). |
| getService(FactoryService.SERVICE_NAME); |
| } |
| catch (Exception e) |
| { |
| throw new InitializationException( |
| "Failed to get a Factory object: ", e); |
| } |
| |
| setInit(true); |
| } |
| |
| /** |
| * Returns a CryptoAlgorithm Object which represents the requested |
| * crypto algorithm. |
| * |
| * @param algo Name of the requested algorithm |
| * |
| * @return An Object representing the algorithm |
| * |
| * @throws NoSuchAlgorithmException Requested algorithm is not available |
| * |
| */ |
| |
| public CryptoAlgorithm getCryptoAlgorithm(String algo) |
| throws NoSuchAlgorithmException |
| { |
| String cryptoClass = (String) algos.get(algo); |
| CryptoAlgorithm ca = null; |
| |
| if (cryptoClass == null) |
| { |
| cryptoClass = (String) algos.get(DEFAULT_KEY); |
| } |
| |
| if (cryptoClass == null || cryptoClass.equalsIgnoreCase("none")) |
| { |
| throw new NoSuchAlgorithmException( |
| "TurbineCryptoService: No Algorithm for " |
| + algo + " found"); |
| } |
| |
| try |
| { |
| ca = (CryptoAlgorithm) factoryService.getInstance(cryptoClass); |
| } |
| catch (Exception e) |
| { |
| throw new NoSuchAlgorithmException( |
| "TurbineCryptoService: Error instantiating " |
| + cryptoClass + " for " + algo); |
| } |
| |
| ca.setCipher(algo); |
| |
| return ca; |
| } |
| } |