org.bouncycastle.asn1.cms.OriginatorInfo.java Source code

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Here is the source code for org.bouncycastle.asn1.cms.OriginatorInfo.java

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package org.bouncycastle.asn1.cms;

import org.bouncycastle.asn1.ASN1EncodableVector;
import org.bouncycastle.asn1.ASN1Object;
import org.bouncycastle.asn1.ASN1Primitive;
import org.bouncycastle.asn1.ASN1Sequence;
import org.bouncycastle.asn1.ASN1Set;
import org.bouncycastle.asn1.ASN1TaggedObject;
import org.bouncycastle.asn1.DERSequence;
import org.bouncycastle.asn1.DERTaggedObject;

/**
 * <a href="http://tools.ietf.org/html/rfc5652#section-6.2.1">RFC 5652</a>: OriginatorInfo object.
 * <pre>
 * RFC 3369:
 *
 * OriginatorInfo ::= SEQUENCE {
 *     certs [0] IMPLICIT CertificateSet OPTIONAL,
 *     crls  [1] IMPLICIT CertificateRevocationLists OPTIONAL 
 * }
 * CertificateRevocationLists ::= SET OF CertificateList (from X.509)
 *
 * RFC 3582 / 5652:
 *
 * OriginatorInfo ::= SEQUENCE {
 *     certs [0] IMPLICIT CertificateSet OPTIONAL,
 *     crls  [1] IMPLICIT RevocationInfoChoices OPTIONAL
 * }
 * RevocationInfoChoices ::= SET OF RevocationInfoChoice
 * RevocationInfoChoice ::= CHOICE {
 *     crl CertificateList,
 *     other [1] IMPLICIT OtherRevocationInfoFormat }
 *
 * OtherRevocationInfoFormat ::= SEQUENCE {
 *     otherRevInfoFormat OBJECT IDENTIFIER,
 *     otherRevInfo ANY DEFINED BY otherRevInfoFormat }
 * </pre>
 * <p>
 * TODO: RevocationInfoChoices / RevocationInfoChoice.
 *       Constructor using CertificateSet, CertificationInfoChoices
 */
public class OriginatorInfo extends ASN1Object {
    private ASN1Set certs;
    private ASN1Set crls;

    public OriginatorInfo(ASN1Set certs, ASN1Set crls) {
        this.certs = certs;
        this.crls = crls;
    }

    private OriginatorInfo(ASN1Sequence seq) {
        switch (seq.size()) {
        case 0: // empty
            break;
        case 1:
            ASN1TaggedObject o = (ASN1TaggedObject) seq.getObjectAt(0);
            switch (o.getTagNo()) {
            case 0:
                certs = ASN1Set.getInstance(o, false);
                break;
            case 1:
                crls = ASN1Set.getInstance(o, false);
                break;
            default:
                throw new IllegalArgumentException("Bad tag in OriginatorInfo: " + o.getTagNo());
            }
            break;
        case 2:
            certs = ASN1Set.getInstance((ASN1TaggedObject) seq.getObjectAt(0), false);
            crls = ASN1Set.getInstance((ASN1TaggedObject) seq.getObjectAt(1), false);
            break;
        default:
            throw new IllegalArgumentException("OriginatorInfo too big");
        }
    }

    /**
     * Return an OriginatorInfo object from a tagged object.
     *
     * @param obj the tagged object holding the object we want.
     * @param explicit true if the object is meant to be explicitly
     *              tagged false otherwise.
     * @exception IllegalArgumentException if the object held by the
     *          tagged object cannot be converted.
     */
    public static OriginatorInfo getInstance(ASN1TaggedObject obj, boolean explicit) {
        return getInstance(ASN1Sequence.getInstance(obj, explicit));
    }

    /**
     * Return an OriginatorInfo object from the given object.
     * <p>
     * Accepted inputs:
     * <ul>
     * <li> null &rarr; null
     * <li> {@link OriginatorInfo} object
     * <li> {@link org.bouncycastle.asn1.ASN1Sequence#getInstance(java.lang.Object) ASN1Sequence} input formats with OriginatorInfo structure inside
     * </ul>
     *
     * @param obj the object we want converted.
     * @exception IllegalArgumentException if the object cannot be converted.
     */
    public static OriginatorInfo getInstance(Object obj) {
        if (obj instanceof OriginatorInfo) {
            return (OriginatorInfo) obj;
        } else if (obj != null) {
            return new OriginatorInfo(ASN1Sequence.getInstance(obj));
        }

        return null;
    }

    public ASN1Set getCertificates() {
        return certs;
    }

    public ASN1Set getCRLs() {
        return crls;
    }

    /** 
     * Produce an object suitable for an ASN1OutputStream.
     */
    public ASN1Primitive toASN1Primitive() {
        ASN1EncodableVector v = new ASN1EncodableVector(2);

        if (certs != null) {
            v.add(new DERTaggedObject(false, 0, certs));
        }

        if (crls != null) {
            v.add(new DERTaggedObject(false, 1, crls));
        }

        return new DERSequence(v);
    }
}