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/*
 * =============================================================================
 * 
 *   Copyright (c) 2007-2010, The JASYPT team (http://www.jasypt.org)
 * 
 *   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.
 *   See the License for the specific language governing permissions and
 *   limitations under the License.
 * 
 * =============================================================================
 */
package org.jasypt.intf.cli;

import java.util.Properties;

import org.jasypt.intf.service.JasyptStatelessService;


/**
 * 
 * This class supports the CLI "digest" operation.
 * 
 * 
 * It should NEVER be used inside your code, only from the supplied
 * command-line tools.
 * 
 * 
 * @since 1.4
 * 
 * @author Daniel Fernández
 *
 */
public final class JasyptStringDigestCLI {
    
    /*
     * The required arguments for this CLI operation.
     */
    private static final String[][] VALID_REQUIRED_ARGUMENTS =
        new String[][] {
            new String [] {
                    ArgumentNaming.ARG_INPUT
            }
        };
    
    /*
     * The optional arguments for this CLI operation.
     */
    private static final String[][] VALID_OPTIONAL_ARGUMENTS =
        new String[][] {
            new String [] {
                ArgumentNaming.ARG_VERBOSE
            },
            new String [] {
                ArgumentNaming.ARG_ALGORITHM
            },
            new String [] {
                ArgumentNaming.ARG_ITERATIONS
            },
            new String [] {
                ArgumentNaming.ARG_SALT_SIZE_BYTES
            },
            new String [] {
                ArgumentNaming.ARG_SALT_GENERATOR_CLASS_NAME
            },
            new String [] {
                ArgumentNaming.ARG_PROVIDER_NAME
            },
            new String [] {
                ArgumentNaming.ARG_PROVIDER_CLASS_NAME
            },
            new String [] {
                ArgumentNaming.ARG_INVERT_POSITION_OF_SALT_IN_MESSAGE_BEFORE_DIGESTING
            },
            new String [] {
                ArgumentNaming.ARG_INVERT_POSITION_OF_PLAIN_SALT_IN_ENCRYPTION_RESULTS
            },
            new String [] {
                ArgumentNaming.ARG_USE_LENIENT_SALT_SIZE_CHECK
            },
            new String [] {
                ArgumentNaming.ARG_UNICODE_NORMALIZATION_IGNORED
            },
            new String [] {
                ArgumentNaming.ARG_STRING_OUTPUT_TYPE
            },
            new String [] {
                ArgumentNaming.ARG_PREFIX
            },
            new String [] {
                ArgumentNaming.ARG_SUFFIX
            }
        };
    
    
    /**
     * 
     * CLI execution method.
     * 
     * 
     * @param args the command execution arguments
     */
    public static void main(final String[] args) {

        final boolean verbose = CLIUtils.getVerbosity(args);
        
        try {
            
            String applicationName = null;
            String[] arguments = null;
            if (args[0] == null || args[0].indexOf("=") != -1) {
                applicationName = JasyptStringDigestCLI.class.getName();
                arguments = args;
            } else {
                applicationName = args[0];
                arguments = new String[args.length - 1];
                System.arraycopy(args, 1, arguments, 0, args.length - 1);
            }
            
            final Properties argumentValues = 
                CLIUtils.getArgumentValues(
                        applicationName, arguments,  
                        VALID_REQUIRED_ARGUMENTS, VALID_OPTIONAL_ARGUMENTS);

            CLIUtils.showEnvironment(verbose);
            
            final JasyptStatelessService service = new JasyptStatelessService();

            final String input = argumentValues.getProperty(ArgumentNaming.ARG_INPUT);

            CLIUtils.showArgumentDescription(argumentValues, verbose);
            
            final String result =
                service.digest(
                        input, 
                        argumentValues.getProperty(ArgumentNaming.ARG_ALGORITHM),
                        null,
                        null,
                        argumentValues.getProperty(ArgumentNaming.ARG_ITERATIONS),
                        null,
                        null,
                        argumentValues.getProperty(ArgumentNaming.ARG_SALT_SIZE_BYTES),
                        null,
                        null,
                        argumentValues.getProperty(ArgumentNaming.ARG_SALT_GENERATOR_CLASS_NAME),
                        null,
                        null,
                        argumentValues.getProperty(ArgumentNaming.ARG_PROVIDER_NAME),
                        null,
                        null,
                        argumentValues.getProperty(ArgumentNaming.ARG_PROVIDER_CLASS_NAME),
                        null,
                        null,
                        argumentValues.getProperty(ArgumentNaming.ARG_INVERT_POSITION_OF_SALT_IN_MESSAGE_BEFORE_DIGESTING),
                        null,
                        null,
                        argumentValues.getProperty(ArgumentNaming.ARG_INVERT_POSITION_OF_PLAIN_SALT_IN_ENCRYPTION_RESULTS),
                        null,
                        null,
                        argumentValues.getProperty(ArgumentNaming.ARG_USE_LENIENT_SALT_SIZE_CHECK),
                        null,
                        null,
                        argumentValues.getProperty(ArgumentNaming.ARG_UNICODE_NORMALIZATION_IGNORED),
                        null,
                        null,
                        argumentValues.getProperty(ArgumentNaming.ARG_STRING_OUTPUT_TYPE),
                        null,
                        null,
                        argumentValues.getProperty(ArgumentNaming.ARG_PREFIX),
                        null,
                        null,
                        argumentValues.getProperty(ArgumentNaming.ARG_SUFFIX),
                        null,
                        null);
            
            CLIUtils.showOutput(result, verbose);

        } catch (Throwable t) {
            CLIUtils.showError(t, verbose);
        }
        
    }
    
    
    
    /*
     * Instantiation is forbidden.
     */
    private JasyptStringDigestCLI() {
        super();
    }
    
}