| package org.bouncycastle.asn1.util; |
| |
| import java.io.IOException; |
| import java.util.Enumeration; |
| |
| import org.bouncycastle.asn1.ASN1OctetString; |
| import org.bouncycastle.asn1.ASN1Sequence; |
| import org.bouncycastle.asn1.ASN1Set; |
| import org.bouncycastle.asn1.BERApplicationSpecific; |
| import org.bouncycastle.asn1.BERConstructedOctetString; |
| import org.bouncycastle.asn1.BERSequence; |
| import org.bouncycastle.asn1.BERSet; |
| import org.bouncycastle.asn1.BERTaggedObject; |
| import org.bouncycastle.asn1.DERApplicationSpecific; |
| import org.bouncycastle.asn1.DERBMPString; |
| import org.bouncycastle.asn1.DERBitString; |
| import org.bouncycastle.asn1.DERBoolean; |
| import org.bouncycastle.asn1.DEREncodable; |
| import org.bouncycastle.asn1.DEREnumerated; |
| import org.bouncycastle.asn1.DERExternal; |
| import org.bouncycastle.asn1.DERGeneralizedTime; |
| import org.bouncycastle.asn1.DERIA5String; |
| import org.bouncycastle.asn1.DERInteger; |
| import org.bouncycastle.asn1.DERNull; |
| import org.bouncycastle.asn1.DERObject; |
| import org.bouncycastle.asn1.DERObjectIdentifier; |
| import org.bouncycastle.asn1.DEROctetString; |
| import org.bouncycastle.asn1.DERPrintableString; |
| import org.bouncycastle.asn1.DERSequence; |
| import org.bouncycastle.asn1.DERSet; |
| import org.bouncycastle.asn1.DERT61String; |
| import org.bouncycastle.asn1.DERTaggedObject; |
| import org.bouncycastle.asn1.DERTags; |
| import org.bouncycastle.asn1.DERUTCTime; |
| import org.bouncycastle.asn1.DERUTF8String; |
| import org.bouncycastle.asn1.DERUnknownTag; |
| import org.bouncycastle.asn1.DERVisibleString; |
| import org.bouncycastle.util.encoders.Hex; |
| |
| public class ASN1Dump |
| { |
| private static final String TAB = " "; |
| private static final int SAMPLE_SIZE = 32; |
| |
| /** |
| * dump a DER object as a formatted string with indentation |
| * |
| * @param obj the DERObject to be dumped out. |
| */ |
| static void _dumpAsString( |
| String indent, |
| boolean verbose, |
| DERObject obj, |
| StringBuffer buf) |
| { |
| String nl = System.getProperty("line.separator"); |
| if (obj instanceof ASN1Sequence) |
| { |
| Enumeration e = ((ASN1Sequence)obj).getObjects(); |
| String tab = indent + TAB; |
| |
| buf.append(indent); |
| if (obj instanceof BERSequence) |
| { |
| buf.append("BER Sequence"); |
| } |
| else if (obj instanceof DERSequence) |
| { |
| buf.append("DER Sequence"); |
| } |
| else |
| { |
| buf.append("Sequence"); |
| } |
| |
| buf.append(nl); |
| |
| while (e.hasMoreElements()) |
| { |
| Object o = e.nextElement(); |
| |
| // BEGIN android-changed |
| if (o == null || o.equals(DERNull.INSTANCE)) |
| // END android-changed |
| { |
| buf.append(tab); |
| buf.append("NULL"); |
| buf.append(nl); |
| } |
| else if (o instanceof DERObject) |
| { |
| _dumpAsString(tab, verbose, (DERObject)o, buf); |
| } |
| else |
| { |
| _dumpAsString(tab, verbose, ((DEREncodable)o).getDERObject(), buf); |
| } |
| } |
| } |
| else if (obj instanceof DERTaggedObject) |
| { |
| 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(nl); |
| |
| if (o.isEmpty()) |
| { |
| buf.append(tab); |
| buf.append("EMPTY"); |
| buf.append(nl); |
| } |
| else |
| { |
| _dumpAsString(tab, verbose, o.getObject(), buf); |
| } |
| } |
| else if (obj instanceof BERSet) |
| { |
| Enumeration e = ((ASN1Set)obj).getObjects(); |
| String tab = indent + TAB; |
| |
| buf.append(indent); |
| buf.append("BER Set"); |
| buf.append(nl); |
| |
| while (e.hasMoreElements()) |
| { |
| Object o = e.nextElement(); |
| |
| if (o == null) |
| { |
| buf.append(tab); |
| buf.append("NULL"); |
| buf.append(nl); |
| } |
| else if (o instanceof DERObject) |
| { |
| _dumpAsString(tab, verbose, (DERObject)o, buf); |
| } |
| else |
| { |
| _dumpAsString(tab, verbose, ((DEREncodable)o).getDERObject(), buf); |
| } |
| } |
| } |
| else if (obj instanceof DERSet) |
| { |
| Enumeration e = ((ASN1Set)obj).getObjects(); |
| String tab = indent + TAB; |
| |
| buf.append(indent); |
| buf.append("DER Set"); |
| buf.append(nl); |
| |
| while (e.hasMoreElements()) |
| { |
| Object o = e.nextElement(); |
| |
| if (o == null) |
| { |
| buf.append(tab); |
| buf.append("NULL"); |
| buf.append(nl); |
| } |
| else if (o instanceof DERObject) |
| { |
| _dumpAsString(tab, verbose, (DERObject)o, buf); |
| } |
| else |
| { |
| _dumpAsString(tab, verbose, ((DEREncodable)o).getDERObject(), buf); |
| } |
| } |
| } |
| else if (obj instanceof DERObjectIdentifier) |
| { |
| buf.append(indent + "ObjectIdentifier(" + ((DERObjectIdentifier)obj).getId() + ")" + nl); |
| } |
| else if (obj instanceof DERBoolean) |
| { |
| buf.append(indent + "Boolean(" + ((DERBoolean)obj).isTrue() + ")" + nl); |
| } |
| else if (obj instanceof DERInteger) |
| { |
| buf.append(indent + "Integer(" + ((DERInteger)obj).getValue() + ")" + nl); |
| } |
| else if (obj instanceof BERConstructedOctetString) |
| { |
| ASN1OctetString oct = (ASN1OctetString)obj; |
| buf.append(indent + "BER Constructed Octet String" + "[" + oct.getOctets().length + "] "); |
| if (verbose) |
| { |
| buf.append(dumpBinaryDataAsString(indent, oct.getOctets())); |
| } |
| else{ |
| buf.append(nl); |
| } |
| } |
| else if (obj instanceof DEROctetString) |
| { |
| ASN1OctetString oct = (ASN1OctetString)obj; |
| buf.append(indent + "DER Octet String" + "[" + oct.getOctets().length + "] "); |
| if (verbose) |
| { |
| buf.append(dumpBinaryDataAsString(indent, oct.getOctets())); |
| } |
| else{ |
| buf.append(nl); |
| } |
| } |
| else if (obj instanceof DERBitString) |
| { |
| DERBitString bt = (DERBitString)obj; |
| buf.append(indent + "DER Bit String" + "[" + bt.getBytes().length + ", " + bt.getPadBits() + "] "); |
| if (verbose) |
| { |
| buf.append(dumpBinaryDataAsString(indent, bt.getBytes())); |
| } |
| else{ |
| buf.append(nl); |
| } |
| } |
| else if (obj instanceof DERIA5String) |
| { |
| buf.append(indent + "IA5String(" + ((DERIA5String)obj).getString() + ") " + nl); |
| } |
| else if (obj instanceof DERUTF8String) |
| { |
| buf.append(indent + "UTF8String(" + ((DERUTF8String)obj).getString() + ") " + nl); |
| } |
| else if (obj instanceof DERPrintableString) |
| { |
| buf.append(indent + "PrintableString(" + ((DERPrintableString)obj).getString() + ") " + nl); |
| } |
| else if (obj instanceof DERVisibleString) |
| { |
| buf.append(indent + "VisibleString(" + ((DERVisibleString)obj).getString() + ") " + nl); |
| } |
| else if (obj instanceof DERBMPString) |
| { |
| buf.append(indent + "BMPString(" + ((DERBMPString)obj).getString() + ") " + nl); |
| } |
| else if (obj instanceof DERT61String) |
| { |
| buf.append(indent + "T61String(" + ((DERT61String)obj).getString() + ") " + nl); |
| } |
| else if (obj instanceof DERUTCTime) |
| { |
| buf.append(indent + "UTCTime(" + ((DERUTCTime)obj).getTime() + ") " + nl); |
| } |
| else if (obj instanceof DERGeneralizedTime) |
| { |
| buf.append(indent + "GeneralizedTime(" + ((DERGeneralizedTime)obj).getTime() + ") " + nl); |
| } |
| else if (obj instanceof DERUnknownTag) |
| { |
| buf.append(indent + "Unknown " + Integer.toString(((DERUnknownTag)obj).getTag(), 16) + " " + new String(Hex.encode(((DERUnknownTag)obj).getData())) + nl); |
| } |
| else if (obj instanceof BERApplicationSpecific) |
| { |
| buf.append(outputApplicationSpecific("BER", indent, verbose, obj, nl)); |
| } |
| else if (obj instanceof DERApplicationSpecific) |
| { |
| buf.append(outputApplicationSpecific("DER", indent, verbose, obj, nl)); |
| } |
| else if (obj instanceof DEREnumerated) |
| { |
| DEREnumerated en = (DEREnumerated) obj; |
| buf.append(indent + "DER Enumerated(" + en.getValue() + ")" + nl); |
| } |
| else if (obj instanceof DERExternal) |
| { |
| DERExternal ext = (DERExternal) obj; |
| buf.append(indent + "External " + nl); |
| String tab = indent + TAB; |
| if (ext.getDirectReference() != null) |
| { |
| buf.append(tab + "Direct Reference: " + ext.getDirectReference().getId() + nl); |
| } |
| if (ext.getIndirectReference() != null) |
| { |
| buf.append(tab + "Indirect Reference: " + ext.getIndirectReference().toString() + nl); |
| } |
| if (ext.getDataValueDescriptor() != null) |
| { |
| _dumpAsString(tab, verbose, ext.getDataValueDescriptor(), buf); |
| } |
| buf.append(tab + "Encoding: " + ext.getEncoding() + nl); |
| _dumpAsString(tab, verbose, ext.getExternalContent(), buf); |
| } |
| else |
| { |
| buf.append(indent + obj.toString() + nl); |
| } |
| } |
| |
| private static String outputApplicationSpecific(String type, String indent, boolean verbose, DERObject obj, String nl) |
| { |
| DERApplicationSpecific app = (DERApplicationSpecific)obj; |
| StringBuffer buf = new StringBuffer(); |
| |
| if (app.isConstructed()) |
| { |
| try |
| { |
| ASN1Sequence s = ASN1Sequence.getInstance(app.getObject(DERTags.SEQUENCE)); |
| buf.append(indent + type + " ApplicationSpecific[" + app.getApplicationTag() + "]" + nl); |
| for (Enumeration e = s.getObjects(); e.hasMoreElements();) |
| { |
| _dumpAsString(indent + TAB, verbose, (DERObject)e.nextElement(), buf); |
| } |
| } |
| catch (IOException e) |
| { |
| buf.append(e); |
| } |
| return buf.toString(); |
| } |
| |
| return indent + type + " ApplicationSpecific[" + app.getApplicationTag() + "] (" + new String(Hex.encode(app.getContents())) + ")" + nl; |
| } |
| |
| /** |
| * dump out a DER object as a formatted string, in non-verbose mode. |
| * |
| * @param obj the DERObject to be dumped out. |
| * @return the resulting string. |
| */ |
| public static String dumpAsString( |
| Object obj) |
| { |
| return dumpAsString(obj, false); |
| } |
| |
| /** |
| * Dump out the object as a string. |
| * |
| * @param obj the object to be dumped |
| * @param verbose if true, dump out the contents of octet and bit strings. |
| * @return the resulting string. |
| */ |
| public static String dumpAsString( |
| Object obj, |
| boolean verbose) |
| { |
| StringBuffer buf = new StringBuffer(); |
| |
| if (obj instanceof DERObject) |
| { |
| _dumpAsString("", verbose, (DERObject)obj, buf); |
| } |
| else if (obj instanceof DEREncodable) |
| { |
| _dumpAsString("", verbose, ((DEREncodable)obj).getDERObject(), buf); |
| } |
| else |
| { |
| return "unknown object type " + obj.toString(); |
| } |
| |
| return buf.toString(); |
| } |
| |
| private static String dumpBinaryDataAsString(String indent, byte[] bytes) |
| { |
| String nl = System.getProperty("line.separator"); |
| StringBuffer buf = new StringBuffer(); |
| |
| indent += TAB; |
| |
| buf.append(nl); |
| for (int i = 0; i < bytes.length; i += SAMPLE_SIZE) |
| { |
| if (bytes.length - i > SAMPLE_SIZE) |
| { |
| buf.append(indent); |
| buf.append(new String(Hex.encode(bytes, i, SAMPLE_SIZE))); |
| buf.append(TAB); |
| buf.append(calculateAscString(bytes, i, SAMPLE_SIZE)); |
| buf.append(nl); |
| } |
| else |
| { |
| buf.append(indent); |
| buf.append(new String(Hex.encode(bytes, i, bytes.length - i))); |
| for (int j = bytes.length - i; j != SAMPLE_SIZE; j++) |
| { |
| buf.append(" "); |
| } |
| buf.append(TAB); |
| buf.append(calculateAscString(bytes, i, bytes.length - i)); |
| buf.append(nl); |
| } |
| } |
| |
| return buf.toString(); |
| } |
| |
| private static String calculateAscString(byte[] bytes, int off, int len) |
| { |
| StringBuffer buf = new StringBuffer(); |
| |
| for (int i = off; i != off + len; i++) |
| { |
| if (bytes[i] >= ' ' && bytes[i] <= '~') |
| { |
| buf.append((char)bytes[i]); |
| } |
| } |
| |
| return buf.toString(); |
| } |
| } |
