azkaban.crypto.EncryptionCLI.java Source code

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Here is the source code for azkaban.crypto.EncryptionCLI.java

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/*
 * Copyright (C) 2016 LinkedIn Corp. 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.
 */
package azkaban.crypto;

import org.apache.commons.cli.CommandLine;
import org.apache.commons.cli.CommandLineParser;
import org.apache.commons.cli.DefaultParser;
import org.apache.commons.cli.HelpFormatter;
import org.apache.commons.cli.Option;
import org.apache.commons.cli.Options;
import org.apache.commons.cli.ParseException;

/**
 * Command line interface for user to encrypt plain text with passphrase.
 */
public class EncryptionCLI {
    private static final String PASSPHRASE_KEY = "k";
    private static final String PLAINTEXT_KEY = "p";
    private static final String VERSION_KEY = "v";
    private static final String HELP_KEY = "h";

    /**
     * Outputs ciphered text to STDOUT.
     *
     * usage: EncryptionCLI [-h] -k <pass phrase> -p <plainText> -v <crypto version>
     * -h,--help                       print this message
     * -k,--key <pass phrase>          Passphrase used for encrypting plain text
     * -p,--plaintext <plainText>      Plaintext that needs to be encrypted
     * -v,--version <crypto version>   Version it will use to encrypt Version: [1.0, 1.1]
     *
     * @param args
     * @throws ParseException
     */
    public static void main(String[] args) throws ParseException {
        CommandLineParser parser = new DefaultParser();

        if (parser.parse(createHelpOptions(), args, true).hasOption(HELP_KEY)) {
            new HelpFormatter().printHelp(EncryptionCLI.class.getSimpleName(), createOptions(), true);
            return;
        }

        CommandLine line = parser.parse(createOptions(), args);

        String passphraseKey = line.getOptionValue(PASSPHRASE_KEY);
        String plainText = line.getOptionValue(PLAINTEXT_KEY);
        String version = line.getOptionValue(VERSION_KEY);

        ICrypto crypto = new Crypto();
        String cipheredText = crypto.encrypt(plainText, passphraseKey, Version.fromVerString(version));
        System.out.println(cipheredText);
    }

    private static Options createHelpOptions() {
        Options options = new Options();
        options.addOption(Option.builder(HELP_KEY).longOpt("help").desc("print this message").build());
        return options;
    }

    private static Options createOptions() {
        Options options = createHelpOptions();

        options.addOption(Option.builder(PLAINTEXT_KEY).longOpt("plaintext").hasArg().required()
                .desc("Plaintext that needs to be encrypted").argName("plainText").build());

        options.addOption(Option.builder(PASSPHRASE_KEY).longOpt("key").hasArg().required()
                .desc("Passphrase used for encrypting plain text").argName("pass phrase").build());

        options.addOption(Option.builder(VERSION_KEY).longOpt("version").hasArg().required()
                .desc("Version it will use to encrypt Version: " + Version.versionStrings())
                .argName("crypto version").build());

        return options;
    }
}