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package org.spongycastle.asn1.dvcs;
import java.math.BigInteger;
import org.spongycastle.asn1.ASN1Encodable;
import org.spongycastle.asn1.ASN1EncodableVector;
import org.spongycastle.asn1.ASN1Integer;
import org.spongycastle.asn1.DERSequence;
import org.spongycastle.asn1.DERTaggedObject;
import org.spongycastle.asn1.x509.Extensions;
import org.spongycastle.asn1.x509.GeneralName;
import org.spongycastle.asn1.x509.GeneralNames;
import org.spongycastle.asn1.x509.PolicyInformation;
import org.spongycastle.util.BigIntegers;
/**
* <pre>
* DVCSRequestInformation ::= SEQUENCE {
* version INTEGER DEFAULT 1 ,
* service ServiceType,
* nonce Nonce OPTIONAL,
* requestTime DVCSTime OPTIONAL,
* requester [0] GeneralNames OPTIONAL,
* requestPolicy [1] PolicyInformation OPTIONAL,
* dvcs [2] GeneralNames OPTIONAL,
* dataLocations [3] GeneralNames OPTIONAL,
* extensions [4] IMPLICIT Extensions OPTIONAL
* }
* </pre>
*/
public class DVCSRequestInformationBuilder
{
private int version = DEFAULT_VERSION;
private final ServiceType service;
private DVCSRequestInformation initialInfo;
private BigInteger nonce;
private DVCSTime requestTime;
private GeneralNames requester;
private PolicyInformation requestPolicy;
private GeneralNames dvcs;
private GeneralNames dataLocations;
private Extensions extensions;
private static final int DEFAULT_VERSION = 1;
private static final int TAG_REQUESTER = 0;
private static final int TAG_REQUEST_POLICY = 1;
private static final int TAG_DVCS = 2;
private static final int TAG_DATA_LOCATIONS = 3;
private static final int TAG_EXTENSIONS = 4;
public DVCSRequestInformationBuilder(ServiceType service)
{
this.service = service;
}
public DVCSRequestInformationBuilder(DVCSRequestInformation initialInfo)
{
this.initialInfo = initialInfo;
this.service = initialInfo.getService();
this.version = initialInfo.getVersion();
this.nonce = initialInfo.getNonce();
this.requestTime = initialInfo.getRequestTime();
this.requestPolicy = initialInfo.getRequestPolicy();
this.dvcs = initialInfo.getDVCS();
this.dataLocations = initialInfo.getDataLocations();
}
public DVCSRequestInformation build()
{
ASN1EncodableVector v = new ASN1EncodableVector();
if (version != DEFAULT_VERSION)
{
v.add(new ASN1Integer(version));
}
v.add(service);
if (nonce != null)
{
v.add(new ASN1Integer(nonce));
}
if (requestTime != null)
{
v.add(requestTime);
}
int[] tags = new int[]{
TAG_REQUESTER,
TAG_REQUEST_POLICY,
TAG_DVCS,
TAG_DATA_LOCATIONS,
TAG_EXTENSIONS
};
ASN1Encodable[] taggedObjects = new ASN1Encodable[]{
requester,
requestPolicy,
dvcs,
dataLocations,
extensions
};
for (int i = 0; i < tags.length; i++)
{
int tag = tags[i];
ASN1Encodable taggedObject = taggedObjects[i];
if (taggedObject != null)
{
v.add(new DERTaggedObject(false, tag, taggedObject));
}
}
return DVCSRequestInformation.getInstance(new DERSequence(v));
}
public void setVersion(int version)
{
if (initialInfo != null)
{
throw new IllegalStateException("cannot change version in existing DVCSRequestInformation");
}
this.version = version;
}
public void setNonce(BigInteger nonce)
{
// RFC 3029, 9.1: The DVCS MAY modify the fields
// 'dvcs', 'requester', 'dataLocations', and 'nonce' of the ReqInfo structure
// RFC 3029, 9.1: The only modification
// allowed to a 'nonce' is the inclusion of a new field if it was not
// present, or to concatenate other data to the end (right) of an
// existing value.
if (initialInfo != null)
{
if (initialInfo.getNonce() == null)
{
this.nonce = nonce;
}
else
{
byte[] initialBytes = initialInfo.getNonce().toByteArray();
byte[] newBytes = BigIntegers.asUnsignedByteArray(nonce);
byte[] nonceBytes = new byte[initialBytes.length + newBytes.length];
System.arraycopy(initialBytes, 0, nonceBytes, 0, initialBytes.length);
System.arraycopy(newBytes, 0, nonceBytes, initialBytes.length, newBytes.length);
this.nonce = new BigInteger(nonceBytes);
}
}
this.nonce = nonce;
}
public void setRequestTime(DVCSTime requestTime)
{
if (initialInfo != null)
{
throw new IllegalStateException("cannot change request time in existing DVCSRequestInformation");
}
this.requestTime = requestTime;
}
public void setRequester(GeneralName requester)
{
this.setRequester(new GeneralNames(requester));
}
public void setRequester(GeneralNames requester)
{
// RFC 3029, 9.1: The DVCS MAY modify the fields
// 'dvcs', 'requester', 'dataLocations', and 'nonce' of the ReqInfo structure
this.requester = requester;
}
public void setRequestPolicy(PolicyInformation requestPolicy)
{
if (initialInfo != null)
{
throw new IllegalStateException("cannot change request policy in existing DVCSRequestInformation");
}
this.requestPolicy = requestPolicy;
}
public void setDVCS(GeneralName dvcs)
{
this.setDVCS(new GeneralNames(dvcs));
}
public void setDVCS(GeneralNames dvcs)
{
// RFC 3029, 9.1: The DVCS MAY modify the fields
// 'dvcs', 'requester', 'dataLocations', and 'nonce' of the ReqInfo structure
this.dvcs = dvcs;
}
public void setDataLocations(GeneralName dataLocation)
{
this.setDataLocations(new GeneralNames(dataLocation));
}
public void setDataLocations(GeneralNames dataLocations)
{
// RFC 3029, 9.1: The DVCS MAY modify the fields
// 'dvcs', 'requester', 'dataLocations', and 'nonce' of the ReqInfo structure
this.dataLocations = dataLocations;
}
public void setExtensions(Extensions extensions)
{
if (initialInfo != null)
{
throw new IllegalStateException("cannot change extensions in existing DVCSRequestInformation");
}
this.extensions = extensions;
}
}
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