/**
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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.
*/
package org.apache.openejb.config;
import java.sql.SQLException;
import java.util.Map;
import java.io.IOException;
import org.apache.commons.cli.CommandLine;
import org.apache.commons.cli.CommandLineParser;
import org.apache.commons.cli.HelpFormatter;
import org.apache.commons.cli.Option;
import org.apache.commons.cli.OptionBuilder;
import org.apache.commons.cli.Options;
import org.apache.commons.cli.ParseException;
import org.apache.commons.cli.PosixParser;
import org.apache.openejb.cli.SystemExitException;
import org.apache.openejb.resource.jdbc.BasicDataSourceUtil;
import org.apache.openejb.resource.jdbc.PasswordCipher;
import org.apache.openejb.util.Messages;
import org.apache.openejb.util.Join;
import org.apache.xbean.finder.ResourceFinder;
/**
* Command line tool on top of the {@link org.apache.openejb.resource.jdbc.PasswordCipher} interface. Basically,
* it allows end user to encrypt/decrypt a string (ie. a password) using a cipher
* implementation.
*/
public class Cipher {
private static Messages messages = new Messages(Cipher.class);
public static void main(String[] args) throws SystemExitException {
CommandLineParser parser = new PosixParser();
// create the Options
Options options = new Options();
options.addOption(option("h", "help", "cmd.cipher.opt.help"));
options.addOption(option("c", "cipher", "c", "cmd.cipher.opt.impl"));
options.addOption(option("d", "decrypt", "cmd.cipher.opt.decrypt"));
options.addOption(option("e", "encrypt", "cmd.cipher.opt.encrypt"));
CommandLine line;
try {
// parse the command line arguments
line = parser.parse(options, args);
} catch (ParseException exp) {
help(options);
throw new SystemExitException(-1);
}
if (line.hasOption("help")) {
help(options);
return;
}
String cipherName = "Static3DES";
if (line.hasOption("cipher")) {
cipherName = line.getOptionValue("cipher");
}
if (line.getArgList().size() != 1) {
System.out.println("Must specify either a plain text to encrypt or a ciphered value to decrypt.");
help(options);
return;
}
try {
PasswordCipher cipher = BasicDataSourceUtil.getPasswordCipher(cipherName);
if (line.hasOption("decrypt")) {
String pwdArg = (String) line.getArgList().get(0);
char[] encryptdPassword = pwdArg.toCharArray();
System.out.println(cipher.decrypt(encryptdPassword));
} else { // if option neither encrypt/decrypt is specified, we assume
// it is encrypt.
String plainPassword = (String) line.getArgList().get(0);
System.out.println(new String(cipher.encrypt(plainPassword)));
}
} catch (SQLException e) {
System.out.println("Could not load password cipher implementation class. Check your classpath.");
availableCiphers();
throw new SystemExitException(-1);
}
}
private static void availableCiphers() {
try {
ResourceFinder finder = new ResourceFinder("META-INF/");
Map<String, Class> impls = finder.mapAllImplementations(PasswordCipher.class);
System.out.println("Available ciphers are: "+ Join.join(", ", impls.keySet()));
} catch (Exception dontCare) {
}
}
private static void help(Options options) {
HelpFormatter formatter = new HelpFormatter();
formatter.printHelp("cipher [options] <value>", "\n" + i18n("cmd.cipher.description"), options, "\n");
System.out.println("");
availableCiphers();
}
private static Option option(String shortOpt, String longOpt, String description) {
return OptionBuilder.withLongOpt(longOpt).withDescription(i18n(description)).create(shortOpt);
}
private static Option option(String shortOpt, String longOpt, String argName, String description) {
return OptionBuilder.withLongOpt(longOpt).withArgName(argName).hasArg().withDescription(i18n(description)).create(shortOpt);
}
private static String i18n(String key) {
return messages.format(key);
}
}