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Java example source code file (Credentials.java)

This example Java source code file (Credentials.java) is included in the alvinalexander.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Learn more about this Java project at its project page.

Java - Java tags/keywords

authorizationdata, credentials, debug, encryptionkey, hostaddresses, kdcrep, kerberostime, principalname, realmexception, ticket, ticketflags

The Credentials.java Java example source code

/*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.  Oracle designates this
 * particular file as subject to the "Classpath" exception as provided
 * by Oracle in the LICENSE file that accompanied this code.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 * or visit www.oracle.com if you need additional information or have any
 * questions.
 */

/*
 *
 *  (C) Copyright IBM Corp. 1999 All Rights Reserved.
 *  Copyright 1997 The Open Group Research Institute.  All rights reserved.
 */

package sun.security.krb5.internal.ccache;

import sun.security.krb5.*;
import sun.security.krb5.internal.*;

public class Credentials {

    PrincipalName cname;
    PrincipalName sname;
    EncryptionKey key;
    KerberosTime authtime;
    KerberosTime starttime;//optional
    KerberosTime endtime;
    KerberosTime renewTill; //optional
    HostAddresses caddr; //optional; for proxied tickets only
    AuthorizationData authorizationData; //optional, not being actually used
    public boolean isEncInSKey;  // true if ticket is encrypted in another ticket's skey
    TicketFlags flags;
    Ticket ticket;
    Ticket secondTicket; //optional
    private boolean DEBUG = Krb5.DEBUG;

    public Credentials(
            PrincipalName new_cname,
            PrincipalName new_sname,
            EncryptionKey new_key,
            KerberosTime new_authtime,
            KerberosTime new_starttime,
            KerberosTime new_endtime,
            KerberosTime new_renewTill,
            boolean new_isEncInSKey,
            TicketFlags new_flags,
            HostAddresses new_caddr,
            AuthorizationData new_authData,
            Ticket new_ticket,
            Ticket new_secondTicket) {
        cname = (PrincipalName) new_cname.clone();
        sname = (PrincipalName) new_sname.clone();
        key = (EncryptionKey) new_key.clone();

        authtime = new_authtime;
        starttime = new_starttime;
        endtime = new_endtime;
        renewTill = new_renewTill;

        if (new_caddr != null) {
            caddr = (HostAddresses) new_caddr.clone();
        }
        if (new_authData != null) {
            authorizationData = (AuthorizationData) new_authData.clone();
        }

        isEncInSKey = new_isEncInSKey;
        flags = (TicketFlags) new_flags.clone();
        ticket = (Ticket) (new_ticket.clone());
        if (new_secondTicket != null) {
            secondTicket = (Ticket) new_secondTicket.clone();
        }
    }

    public Credentials(
            KDCRep kdcRep,
            Ticket new_secondTicket,
            AuthorizationData new_authorizationData,
            boolean new_isEncInSKey) {
        if (kdcRep.encKDCRepPart == null) //can't store while encrypted
        {
            return;
        }
        cname = (PrincipalName) kdcRep.cname.clone();
        ticket = (Ticket) kdcRep.ticket.clone();
        key = (EncryptionKey) kdcRep.encKDCRepPart.key.clone();
        flags = (TicketFlags) kdcRep.encKDCRepPart.flags.clone();
        authtime = kdcRep.encKDCRepPart.authtime;
        starttime = kdcRep.encKDCRepPart.starttime;
        endtime = kdcRep.encKDCRepPart.endtime;
        renewTill = kdcRep.encKDCRepPart.renewTill;

        sname = (PrincipalName) kdcRep.encKDCRepPart.sname.clone();
        caddr = (HostAddresses) kdcRep.encKDCRepPart.caddr.clone();
        secondTicket = (Ticket) new_secondTicket.clone();
        authorizationData =
                (AuthorizationData) new_authorizationData.clone();
        isEncInSKey = new_isEncInSKey;
    }

    public Credentials(KDCRep kdcRep) {
        this(kdcRep, null);
    }

    public Credentials(KDCRep kdcRep, Ticket new_ticket) {
        sname = (PrincipalName) kdcRep.encKDCRepPart.sname.clone();
        cname = (PrincipalName) kdcRep.cname.clone();
        key = (EncryptionKey) kdcRep.encKDCRepPart.key.clone();
        authtime = kdcRep.encKDCRepPart.authtime;
        starttime = kdcRep.encKDCRepPart.starttime;
        endtime = kdcRep.encKDCRepPart.endtime;
        renewTill = kdcRep.encKDCRepPart.renewTill;
        // if (kdcRep.msgType == Krb5.KRB_AS_REP) {
        //    isEncInSKey = false;
        //    secondTicket = null;
        //  }
        flags = kdcRep.encKDCRepPart.flags;
        if (kdcRep.encKDCRepPart.caddr != null) {
            caddr = (HostAddresses) kdcRep.encKDCRepPart.caddr.clone();
        } else {
            caddr = null;
        }
        ticket = (Ticket) kdcRep.ticket.clone();
        if (new_ticket != null) {
            secondTicket = (Ticket) new_ticket.clone();
            isEncInSKey = true;
        } else {
            secondTicket = null;
            isEncInSKey = false;
        }
    }

    /**
     * Checks if this credential is expired
     */
    public boolean isValid() {
        boolean valid = true;
        if (endtime.getTime() < System.currentTimeMillis()) {
            valid = false;
        } else if (starttime != null) {
            if (starttime.getTime() > System.currentTimeMillis()) {
                valid = false;
            }
        } else {
            if (authtime.getTime() > System.currentTimeMillis()) {
                valid = false;
            }
        }
        return valid;
    }

    public PrincipalName getServicePrincipal() throws RealmException {
        return sname;
    }

    public sun.security.krb5.Credentials setKrbCreds() {
        // Note: We will not pass authorizationData to s.s.k.Credentials. The
        // field in that class will be passed to Krb5Context as the return
        // value of ExtendedGSSContext.inquireSecContext(KRB5_GET_AUTHZ_DATA),
        // which is documented as the authData in the service ticket. That
        // is on the acceptor side.
        //
        // This class is for the initiator side. Also, authdata inside a ccache
        // is most likely to be the one in Authenticator in PA-TGS-REQ encoded
        // in TGS-REQ, therefore only stored with a service ticket. Currently
        // in Java, we only reads TGTs.
        return new sun.security.krb5.Credentials(ticket,
                cname, sname, key, flags, authtime, starttime, endtime, renewTill, caddr);
    }

    public KerberosTime getStartTime() {
        return starttime;
    }

    public KerberosTime getAuthTime() {
        return authtime;
    }

    public KerberosTime getEndTime() {
        return endtime;
    }

    public KerberosTime getRenewTill() {
        return renewTill;
    }

    public TicketFlags getTicketFlags() {
        return flags;
    }

    public int getEType() {
        return key.getEType();
    }

    public int getTktEType() {
        return ticket.encPart.getEType();
    }
}

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