package org.bouncycastle.asn1.util;
import java.util.Enumeration;
import org.bouncycastle.asn1.*;
import org.bouncycastle.util.encoders.Hex;
public class ASN1Dump
{
private static String TAB = " ";
/**
* dump a DER object as a formatted string with indentation
*
* @param obj the DERObject to be dumped out.
*/
public static String _dumpAsString(
String indent,
DERObject obj)
{
if (obj instanceof ASN1Sequence)
{
StringBuffer buf = new StringBuffer();
Enumeration e = ((ASN1Sequence)obj).getObjects();
String tab = indent + TAB;
buf.append(indent);
if (obj instanceof BERConstructedSequence)
{
buf.append("BER ConstructedSequence");
}
else if (obj instanceof DERConstructedSequence)
{
buf.append("DER ConstructedSequence");
}
else if (obj instanceof DERSequence)
{
buf.append("DER Sequence");
}
else if (obj instanceof BERSequence)
{
buf.append("BER Sequence");
}
else
{
buf.append("Sequence");
}
buf.append(System.getProperty("line.separator"));
while (e.hasMoreElements())
{
Object o = e.nextElement();
if (o == null || o.equals(new DERNull()))
{
buf.append(tab);
buf.append("NULL");
buf.append(System.getProperty("line.separator"));
}
else if (o instanceof DERObject)
{
buf.append(_dumpAsString(tab, (DERObject)o));
}
else
{
buf.append(_dumpAsString(tab, ((DEREncodable)o).getDERObject()));
}
}
return buf.toString();
}
else if (obj instanceof DERTaggedObject)
{
StringBuffer buf = new StringBuffer();
String tab = indent + TAB;
buf.append(indent);
if (obj instanceof BERTaggedObject)
{
buf.append("BER Tagged [");
}
else
{
buf.append("Tagged [");
}
DERTaggedObject o = (DERTaggedObject)obj;
buf.append(Integer.toString(o.getTagNo()));
buf.append("]");
if (!o.isExplicit())
{
buf.append(" IMPLICIT ");
}
buf.append(System.getProperty("line.separator"));
if (o.isEmpty())
{
buf.append(tab);
buf.append("EMPTY");
buf.append(System.getProperty("line.separator"));
}
else
{
buf.append(_dumpAsString(tab, o.getObject()));
}
return buf.toString();
}
else if (obj instanceof DERConstructedSet)
{
StringBuffer buf = new StringBuffer();
Enumeration e = ((ASN1Set)obj).getObjects();
String tab = indent + TAB;
buf.append(indent);
buf.append("ConstructedSet");
buf.append(System.getProperty("line.separator"));
while (e.hasMoreElements())
{
Object o = e.nextElement();
if (o == null)
{
buf.append(tab);
buf.append("NULL");
buf.append(System.getProperty("line.separator"));
}
else if (o instanceof DERObject)
{
buf.append(_dumpAsString(tab, (DERObject)o));
}
else
{
buf.append(_dumpAsString(tab, ((DEREncodable)o).getDERObject()));
}
}
return buf.toString();
}
else if (obj instanceof BERSet)
{
StringBuffer buf = new StringBuffer();
Enumeration e = ((ASN1Set)obj).getObjects();
String tab = indent + TAB;
buf.append(indent);
buf.append("BER Set");
buf.append(System.getProperty("line.separator"));
while (e.hasMoreElements())
{
Object o = e.nextElement();
if (o == null)
{
buf.append(tab);
buf.append("NULL");
buf.append(System.getProperty("line.separator"));
}
else if (o instanceof DERObject)
{
buf.append(_dumpAsString(tab, (DERObject)o));
}
else
{
buf.append(_dumpAsString(tab, ((DEREncodable)o).getDERObject()));
}
}
return buf.toString();
}
else if (obj instanceof DERSet)
{
StringBuffer buf = new StringBuffer();
Enumeration e = ((ASN1Set)obj).getObjects();
String tab = indent + TAB;
buf.append(indent);
buf.append("DER Set");
buf.append(System.getProperty("line.separator"));
while (e.hasMoreElements())
{
Object o = e.nextElement();
if (o == null)
{
buf.append(tab);
buf.append("NULL");
buf.append(System.getProperty("line.separator"));
}
else if (o instanceof DERObject)
{
buf.append(_dumpAsString(tab, (DERObject)o));
}
else
{
buf.append(_dumpAsString(tab, ((DEREncodable)o).getDERObject()));
}
}
return buf.toString();
}
else if (obj instanceof DERObjectIdentifier)
{
return indent + "ObjectIdentifier(" + ((DERObjectIdentifier)obj).getId() + ")" + System.getProperty("line.separator");
}
else if (obj instanceof DERBoolean)
{
return indent + "Boolean(" + ((DERBoolean)obj).isTrue() + ")" + System.getProperty("line.separator");
}
else if (obj instanceof DERInteger)
{
return indent + "Integer(" + ((DERInteger)obj).getValue() + ")" + System.getProperty("line.separator");
}
else if (obj instanceof DEROctetString)
{
return indent + obj.toString() + "[" + ((ASN1OctetString)obj).getOctets().length + "] " + System.getProperty("line.separator");
}
else if (obj instanceof DERIA5String)
{
return indent + "IA5String(" + ((DERIA5String)obj).getString() + ") " + System.getProperty("line.separator");
}
else if (obj instanceof DERPrintableString)
{
return indent + "PrintableString(" + ((DERPrintableString)obj).getString() + ") " + System.getProperty("line.separator");
}
else if (obj instanceof DERVisibleString)
{
return indent + "VisibleString(" + ((DERVisibleString)obj).getString() + ") " + System.getProperty("line.separator");
}
else if (obj instanceof DERBMPString)
{
return indent + "BMPString(" + ((DERBMPString)obj).getString() + ") " + System.getProperty("line.separator");
}
else if (obj instanceof DERT61String)
{
return indent + "T61String(" + ((DERT61String)obj).getString() + ") " + System.getProperty("line.separator");
}
else if (obj instanceof DERUTCTime)
{
return indent + "UTCTime(" + ((DERUTCTime)obj).getTime() + ") " + System.getProperty("line.separator");
}
else if (obj instanceof DERUnknownTag)
{
return indent + "Unknown " + Integer.toString(((DERUnknownTag)obj).getTag(), 16) + " " + new String(Hex.encode(((DERUnknownTag)obj).getData())) + System.getProperty("line.separator");
}
else
{
return indent + obj.toString() + System.getProperty("line.separator");
}
}
/**
* dump out a DER object as a formatted string
*
* @param obj the DERObject to be dumped out.
*/
public static String dumpAsString(
Object obj)
{
if (obj instanceof DERObject)
{
return _dumpAsString("", (DERObject)obj);
}
else if (obj instanceof DEREncodable)
{
return _dumpAsString("", ((DEREncodable)obj).getDERObject());
}
return "unknown object type " + obj.toString();
}
}
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