org.ejbca.ui.cli.Asn1Dump.java Source code

Introduction

Here is the source code for org.ejbca.ui.cli.Asn1Dump.java

Source

/*************************************************************************
 *                                                                       *
 *  EJBCA: The OpenSource Certificate Authority                          *
 *                                                                       *
 *  This software is free software; you can redistribute it and/or       *
 *  modify it under the terms of the GNU Lesser General Public           *
 *  License as published by the Free Software Foundation; either         *
 *  version 2.1 of the License, or any later version.                    *
 *                                                                       *
 *  See terms of license at gnu.org.                                     *
 *                                                                       *
 *************************************************************************/

package org.ejbca.ui.cli;

import java.io.FileInputStream;
import java.security.cert.Certificate;
import java.util.Collection;
import java.util.Iterator;

import org.bouncycastle.asn1.ASN1InputStream;
import org.bouncycastle.asn1.DERObject;
import org.bouncycastle.asn1.util.ASN1Dump;
import org.ejbca.util.CertTools;
import org.ejbca.util.CryptoProviderTools;

/**
 * Dumps PEM or DER file as readable ASN1'
 * 
 * @version $Id: Asn1Dump.java 10934 2010-12-21 13:39:01Z anatom $
 */
public class Asn1Dump extends BaseCommand {

    public String getMainCommand() {
        return null;
    }

    public String getSubCommand() {
        return "asn1dump";
    }

    public String getDescription() {
        return "Dumps PEM or DER file as readable ASN1";
    }

    public void execute(String[] args) throws ErrorAdminCommandException {
        if (args.length < 2) {
            getLogger().info(
                    "Usage: " + getCommand() + " <filename-of-pem-encoded-certs|filename-of-der-encoded-asn1>");
            return;
        }
        try {
            String filename = args[1];
            boolean iscert = true;
            Collection<Certificate> coll = null;
            CryptoProviderTools.installBCProvider();
            try {
                coll = CertTools.getCertsFromPEM(filename);
                if (coll.isEmpty()) {
                    iscert = false;
                }
            } catch (Exception e) {
                iscert = false;
            }
            if (!iscert) {
                ASN1InputStream ais = new ASN1InputStream(new FileInputStream(filename));
                DERObject obj = ais.readObject();
                String dump = ASN1Dump.dumpAsString(obj);
                getLogger().info(dump);
            } else {
                Iterator<Certificate> iter = coll.iterator();
                while (iter.hasNext()) {
                    Certificate cert = iter.next();
                    String dump = ASN1Dump.dumpAsString(cert);
                    getLogger().info(dump);
                }
            }
        } catch (Exception e) {
            throw new ErrorAdminCommandException(e);
        }

    }
}