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The JXTA Shell is a sample application that demonstrates key concepts of JXTA JXSE. The JXTA Shell enables users to interact with the JXTA platform through a command-line interpreter. Much like the UNIX® shell, the JXTA Shell is useful for accessing and managing core platform objects (peers, groups, pipes), debugging communications problems, checking the status of peers and/or peer groups, and communicating with other JXTA services and applications. As in UNIX®, the JXTA shell allows users to "pipe" shell commands together connecting commands "on-the-fly." Pipes in Project JXTA are useful for collecting information at one peer and perhaps processing the command at another.

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/*
 * Copyright (c) 2001 Sun Microsystems, Inc.  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
 *       Sun Microsystems, Inc. for Project JXTA."
 *    Alternately, this acknowledgment may appear in the software itself,
 *    if and wherever such third-party acknowledgments normally appear.
 *
 * 4. The names "Sun", "Sun Microsystems, Inc.", "JXTA" and "Project JXTA" must
 *    not be used to endorse or promote products derived from this
 *    software without prior written permission. For written
 *    permission, please contact Project JXTA at http://www.jxta.org.
 *
 * 5. Products derived from this software may not be called "JXTA",
 *    nor may "JXTA" appear in their name, without prior written
 *    permission of Sun.
 *
 * 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 SUN MICROSYSTEMS 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 Project JXTA.  For more
 * information on Project JXTA, please see
 * .
 *
 * This license is based on the BSD license adopted by the Apache Foundation.
 *
 * $Id: newcsr.java,v 1.8 2007/02/09 23:12:41 hamada Exp $
 */

package net.jxta.impl.shell.bin.pse;

import net.jxta.document.MimeMediaType;
import net.jxta.document.XMLDocument;
import net.jxta.impl.membership.pse.PSECredential;
import net.jxta.impl.membership.pse.PSEMembershipService;
import net.jxta.impl.shell.GetOpt;
import net.jxta.impl.shell.ShellApp;
import net.jxta.impl.shell.ShellEnv;
import net.jxta.impl.shell.ShellObject;
import net.jxta.membership.MembershipService;
import net.jxta.protocol.ModuleImplAdvertisement;
import org.bouncycastle.asn1.DERSet;
import org.bouncycastle.jce.PKCS10CertificationRequest;
import org.bouncycastle.jce.X509Principal;

import java.security.PrivateKey;
import java.security.cert.X509Certificate;

/**
 * PSE.newcsr
 */
public class newcsr extends ShellApp {

    /**
     * {@inheritDoc}
     */
    public int startApp(String[] argv) {
        ShellEnv env = getEnv();
        String credEnvName;

        GetOpt options = new GetOpt(argv, 0, "");

        while (true) {
            int option;
            try {
                option = options.getNextOption();
            } catch (IllegalArgumentException badopt) {
                consoleMessage("Illegal argument :" + badopt);
                return syntaxError();
            }

            if (-1 == option) {
                break;
            }

            switch (option) {

                default:
                    consoleMessage("Unrecognized option");
                    return syntaxError();
            }
        }

        credEnvName = options.getNextParameter();

        if (null == credEnvName) {
            consoleMessage("Missing  parameter");
            return syntaxError();
        }

        if (null != options.getNextParameter()) {
            consoleMessage("Unsupported parameter");
            return syntaxError();
        }

        MembershipService membership = getGroup().getMembershipService();

        if (!(membership instanceof PSEMembershipService)) {
            ModuleImplAdvertisement mia = (ModuleImplAdvertisement) membership.getImplAdvertisement();

            consoleMessage("Group membership service is not PSE. (" + mia.getDescription() + ")");
            return ShellApp.appMiscError;
        }

        PSEMembershipService pse = (PSEMembershipService) membership;

        if (null == pse.getDefaultCredential()) {
            consoleMessage("Key store has not been opened.");
            return ShellApp.appMiscError;
        }

        try {
            ShellObject credEnv = env.get(credEnvName);

            if (null == credEnv) {
                consoleMessage("Environment variable '" + credEnvName + "' not found.");
                return ShellApp.appMiscError;
            }

            if (!PSECredential.class.isAssignableFrom(credEnv.getObjectClass())) {
                consoleMessage("'" + credEnvName + "' is not a  is not a PSE credential.");
                return ShellApp.appMiscError;
            }

            PSECredential cred = (PSECredential) credEnv.getObject();

            X509Certificate cert = cred.getCertificate();

            PrivateKey key = null;

            try {
                key = cred.getPrivateKey();
            } catch (IllegalStateException notLocal) {
                //ignored
            }

            if (null == key) {
                consoleMessage("Credential is not a local login credential.");
                return ShellApp.appMiscError;
            }

            PKCS10CertificationRequest csr = new PKCS10CertificationRequest(
                    "SHA1withRSA",
                    new X509Principal(cert.getSubjectX500Principal().getEncoded()),
                    cert.getPublicKey(),
                    new DERSet(),
                    key);

            net.jxta.impl.protocol.CertificateSigningRequest csr_msg = new net.jxta.impl.protocol.CertificateSigningRequest();

            csr_msg.setCSR(csr);

            XMLDocument asXML = (XMLDocument) csr_msg.getDocument(MimeMediaType.XMLUTF8);

            ShellObject newObj = new ShellObject("Certificate Signing Request", asXML);
            env.add(getReturnVariable(), newObj);
        } catch (Exception failure) {
            printStackTrace("Failure while generating csr", failure);
            return ShellApp.appMiscError;
        }

        return ShellApp.appNoError;
    }

    private int syntaxError() {
        consoleMessage("Usage: pse.newcsr ");
        return ShellApp.appParamError;
    }

    /**
     * {@inheritDoc}
     */
    @Override
    public String getDescription() {
        return "Generates certificate signing request document.";
    }

    /**
     * {@inheritDoc}
     */
    @Override
    public void help() {
        println("NAME");
        println("     pse.newcsr  - " + getDescription());
        println(" ");
        println("SYNOPSIS");
        println(" ");
        println("     pse.newcsr ");
        println(" ");
        println("         The credential which will be the subject of the ");
        println("               certificate signing request.");
        println(" ");
        println("OPTIONS");
        println(" ");
        println("DESCRIPTION");
        println(" ");
        println("Generates a certificate signing request (CSR) for the specified ");
        println("key. ");
        println(" ");
        println("EXAMPLE");
        println(" ");
        println("    JXTA> newcsr = pse.newcsr cred0");
        println(" ");
        println(" ");
        println("SEE ALSO");
        println("     pse.certs pse.keys pse.erase pse.createkey pse.signcsr pse.importcert");
    }
}




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