jcifs.pac.kerberos.KerberosRelevantAuthData.java Source code

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Here is the source code for jcifs.pac.kerberos.KerberosRelevantAuthData.java

Source

/*
 * 
 * This library 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 (at your option) any later version.
 * 
 * This library 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
 * Lesser General Public License for more details.
 * 
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */
package jcifs.pac.kerberos;

import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.security.Key;
import java.util.ArrayList;
import java.util.Enumeration;
import java.util.List;

import org.bouncycastle.asn1.ASN1InputStream;
import org.bouncycastle.asn1.ASN1Integer;
import org.bouncycastle.asn1.DEROctetString;
import org.bouncycastle.asn1.DERTaggedObject;
import org.bouncycastle.asn1.DLSequence;

import jcifs.pac.ASN1Util;
import jcifs.pac.PACDecodingException;

@SuppressWarnings("javadoc")
public class KerberosRelevantAuthData extends KerberosAuthData {

    private List<KerberosAuthData> authorizations;

    public KerberosRelevantAuthData(byte[] token, Key key) throws PACDecodingException {
        DLSequence authSequence;
        try {
            try (ASN1InputStream stream = new ASN1InputStream(new ByteArrayInputStream(token))) {
                authSequence = ASN1Util.as(DLSequence.class, stream);
            }
        } catch (IOException e) {
            throw new PACDecodingException("Malformed kerberos ticket", e);
        }

        this.authorizations = new ArrayList<>();
        Enumeration<?> authElements = authSequence.getObjects();
        while (authElements.hasMoreElements()) {
            DLSequence authElement = ASN1Util.as(DLSequence.class, authElements);
            ASN1Integer authType = ASN1Util.as(ASN1Integer.class,
                    ASN1Util.as(DERTaggedObject.class, authElement, 0));
            DEROctetString authData = ASN1Util.as(DEROctetString.class,
                    ASN1Util.as(DERTaggedObject.class, authElement, 1));

            this.authorizations
                    .addAll(KerberosAuthData.parse(authType.getValue().intValue(), authData.getOctets(), key));
        }
    }

    public List<KerberosAuthData> getAuthorizations() {
        return this.authorizations;
    }

}