erase.java

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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
 * <http://www.jxta.org/>.
 *
 * This license is based on the BSD license adopted by the Apache Foundation.
 *
 * $Id: erase.java,v 1.5 2004/09/29 20:44:40 bondolo Exp $
 */

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

import java.net.URI;
import java.security.cert.X509Certificate;
import java.util.Arrays;
import java.util.Iterator;

import java.io.IOException;
import java.net.URISyntaxException;
import java.security.KeyStoreException;

import net.jxta.id.ID;
import net.jxta.id.IDFactory;
import net.jxta.membership.MembershipService;
import net.jxta.peergroup.PeerGroup;
import net.jxta.protocol.ModuleImplAdvertisement;

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;

/**
 *  PSE.erase
 **/
public class erase extends ShellApp {
    
    /**
     *  {@inheritDoc}
     **/
    public int startApp(String[] argv ) {
        ShellEnv env = getEnv();
        PeerGroup current = (PeerGroup) env.get("stdgroup").getObject();
        String eraseID = null;
        
        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();
            }
        }
        
        eraseID = options.getNextParameter();
        
        
        if ( null == eraseID ) {
            consoleMessage( "Missing <id> 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( "KeyStore has not been opened." );
            return ShellApp.appMiscError;
        }
        
        try {
            ID id;
            
            try {
                URI idURL =  new URI( eraseID );
                id = IDFactory.fromURI( idURL );
            } catch (URISyntaxException badID ) {
                printStackTrace( "Bad ID", badID );
                return ShellApp.appMiscError;
            }
            
            pse.getPSEConfig().erase( id );
        } catch( KeyStoreException failure ) {
            printStackTrace( "KeyStore failure while printing keys", failure );
            return ShellApp.appMiscError;
        } catch( IOException failure ) {
            printStackTrace( "IO failure while printing keys", failure );
            return ShellApp.appMiscError;
        }
        
        return ShellApp.appNoError;
    }
    
    private int syntaxError() {
        consoleMessage( "Usage: pse.erase <id>" );
        return ShellApp.appParamError;
    }
    
    /**
     *  {@inheritDoc}
     **/
    public String getDescription() {
        return "Erases a key or certificate from the PSE key store";
    }
    
    /**
     *  {@inheritDoc}
     **/
    public void help() {
        println("NAME");
        println("     pse.erase  - " + getDescription() );
        println(" ");
        println("SYNOPSIS");
        println(" ");
        println("     pse.erase <id>");
        println(" ");
        println("     <id>    ID of the key or certificate to erase.");
        println(" ");
        println("OPTIONS");
        println(" ");
        println("     (none)");
        println(" ");        
        println("DESCRIPTION");
        println(" ");
        println("     Erases a key or certificate from the PSE key store used" );
        println("     by the membership service in this group.");
        println(" ");
        println("EXAMPLE");
        println(" ");
        println("    JXTA> pse.erase urn:jxta:uuid-59616261646162614A78746150325033CACD56AE273E448CB25E8DA42C2BD46903");
        println(" ");
        println(" ");
        println("SEE ALSO");
        println("     pse.certs pse.keys");
    }
}