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ASN1Dump.java
资源名称：security.rar　[点击查看]
上传用户：lior1029
上传日期：2013-05-07
资源大小：209k
文件大小：8k
源码类别：

CA认证

开发平台：

Java

ASN1Dump.java：源码内容
  1. package org.bouncycastle.asn1.util;
  3. import java.util.*;
  5. import org.bouncycastle.asn1.*;
  7. import org.bouncycastle.util.encoders.Hex;
  9. public class ASN1Dump
  10. {
  11.     private static String  TAB = "    ";
  13.     /**
  14.      * dump a DER object as a formatted string with indentation
  15.      *
  16.      * @param obj the DERObject to be dumped out.
  17.      */
  18.     public static String _dumpAsString(
  19.         String      indent,
  20.         DERObject   obj)
  21.     {
  22.         if (obj instanceof ASN1Sequence)
  23.         {
  24.             StringBuffer    buf = new StringBuffer();
  25.             Enumeration     e = ((ASN1Sequence)obj).getObjects();
  26.             String          tab = indent + TAB;
  28.             buf.append(indent);
  29. if (obj instanceof BERConstructedSequence)
  30. {
  31.             buf.append("BER ConstructedSequence");
  32. }
  33.             else if (obj instanceof DERConstructedSequence)
  34.             {
  35.             buf.append("DER ConstructedSequence");
  36.             }
  37.             else if (obj instanceof BERSequence)
  38.             {
  39.             buf.append("BER Sequence");
  40.             }
  41. else
  42. {
  43.             buf.append("Sequence");
  44. }
  46.             buf.append(System.getProperty("line.separator"));
  48.             while (e.hasMoreElements())
  49.             {
  50.                 Object  o = e.nextElement();
  52.                 if (o == null || o.equals(new DERNull()))
  53.                 {
  54.                     buf.append(tab);
  55.                     buf.append("NULL");
  56.                     buf.append(System.getProperty("line.separator"));
  57.                 }
  58.                 else if (o instanceof DERObject)
  59.                 {
  60.                     buf.append(_dumpAsString(tab, (DERObject)o));
  61.                 }
  62.                 else
  63.                 {
  64.                     buf.append(_dumpAsString(tab, ((DEREncodable)o).getDERObject()));
  65.                 }
  66.             }
  67.             return buf.toString();
  68.         }
  69.         else if (obj instanceof DERTaggedObject)
  70.         {
  71.             StringBuffer    buf = new StringBuffer();
  72.             String          tab = indent + TAB;
  74.             buf.append(indent);
  75. if (obj instanceof BERTaggedObject)
  76. {
  77.              buf.append("BER Tagged [");
  78. }
  79. else
  80. {
  81.              buf.append("Tagged [");
  82. }
  84.             DERTaggedObject o = (DERTaggedObject)obj;
  86.             buf.append(Integer.toString(o.getTagNo()));
  87.             buf.append("]");
  89.             if (!o.isExplicit())
  90.             {
  91.                 buf.append(" IMPLICIT ");
  92.             }
  94.             buf.append(System.getProperty("line.separator"));
  96.             if (o.isEmpty())
  97.             {
  98.                 buf.append(tab);
  99.                 buf.append("EMPTY");
  100.                 buf.append(System.getProperty("line.separator"));
  101.             }
  102.             else
  103.             {
  104.                 buf.append(_dumpAsString(tab, o.getObject()));
  105.             }
  107.             return buf.toString();
  108.         }
  109.         else if (obj instanceof DERConstructedSet)
  110.         {
  111.             StringBuffer    buf = new StringBuffer();
  112.             Enumeration     e = ((ASN1Set)obj).getObjects();
  113.             String          tab = indent + TAB;
  115.             buf.append(indent);
  116.             buf.append("ConstructedSet");
  117.             buf.append(System.getProperty("line.separator"));
  119.             while (e.hasMoreElements())
  120.             {
  121.                 Object  o = e.nextElement();
  123.                 if (o == null)
  124.                 {
  125.                     buf.append(tab);
  126.                     buf.append("NULL");
  127.                     buf.append(System.getProperty("line.separator"));
  128.                 }
  129.                 else if (o instanceof DERObject)
  130.                 {
  131.                     buf.append(_dumpAsString(tab, (DERObject)o));
  132.                 }
  133.                 else
  134.                 {
  135.                     buf.append(_dumpAsString(tab, ((DEREncodable)o).getDERObject()));
  136.                 }
  137.             }
  138.             return buf.toString();
  139.         }
  140.         else if (obj instanceof BERSet)
  141.         {
  142.             StringBuffer    buf = new StringBuffer();
  143.             Enumeration     e = ((ASN1Set)obj).getObjects();
  144.             String          tab = indent + TAB;
  146.             buf.append(indent);
  147.             buf.append("BER Set");
  148.             buf.append(System.getProperty("line.separator"));
  150.             while (e.hasMoreElements())
  151.             {
  152.                 Object  o = e.nextElement();
  154.                 if (o == null)
  155.                 {
  156.                     buf.append(tab);
  157.                     buf.append("NULL");
  158.                     buf.append(System.getProperty("line.separator"));
  159.                 }
  160.                 else if (o instanceof DERObject)
  161.                 {
  162.                     buf.append(_dumpAsString(tab, (DERObject)o));
  163.                 }
  164.                 else
  165.                 {
  166.                     buf.append(_dumpAsString(tab, ((DEREncodable)o).getDERObject()));
  167.                 }
  168.             }
  169.             return buf.toString();
  170.         }
  171.         else if (obj instanceof DERSet)
  172.         {
  173.             StringBuffer    buf = new StringBuffer();
  174.             Enumeration     e = ((ASN1Set)obj).getObjects();
  175.             String          tab = indent + TAB;
  177.             buf.append(indent);
  178.             buf.append("BER Set");
  179.             buf.append(System.getProperty("line.separator"));
  181.             while (e.hasMoreElements())
  182.             {
  183.                 Object  o = e.nextElement();
  185.                 if (o == null)
  186.                 {
  187.                     buf.append(tab);
  188.                     buf.append("NULL");
  189.                     buf.append(System.getProperty("line.separator"));
  190.                 }
  191.                 else if (o instanceof DERObject)
  192.                 {
  193.                     buf.append(_dumpAsString(tab, (DERObject)o));
  194.                 }
  195.                 else
  196.                 {
  197.                     buf.append(_dumpAsString(tab, ((DEREncodable)o).getDERObject()));
  198.                 }
  199.             }
  200.             return buf.toString();
  201.         }
  202.         else if (obj instanceof DERObjectIdentifier)
  203.         {
  204.             return indent + "ObjectIdentifier(" + ((DERObjectIdentifier)obj).getId() + ")" + System.getProperty("line.separator");
  205.         }
  206.         else if (obj instanceof DERBoolean)
  207.         {
  208.             return indent + "Boolean(" + ((DERBoolean)obj).isTrue() + ")" + System.getProperty("line.separator");
  209.         }
  210.         else if (obj instanceof DERInteger)
  211.         {
  212.             return indent + "Integer(" + ((DERInteger)obj).getValue() + ")" + System.getProperty("line.separator");
  213.         }
  214.         else if (obj instanceof DEROctetString)
  215.         {
  216.             return indent + obj.toString() + "[" + ((ASN1OctetString)obj).getOctets().length + "] " + System.getProperty("line.separator");
  217.         }
  218.         else if (obj instanceof DERIA5String)
  219.         {
  220.             return indent + "IA5String(" + ((DERIA5String)obj).getString() + ") " + System.getProperty("line.separator");
  221.         }
  222.         else if (obj instanceof DERPrintableString)
  223.         {
  224.             return indent + "PrintableString(" + ((DERPrintableString)obj).getString() + ") " + System.getProperty("line.separator");
  225.         }
  226.         else if (obj instanceof DERVisibleString)
  227.         {
  228.             return indent + "VisibleString(" + ((DERVisibleString)obj).getString() + ") " + System.getProperty("line.separator");
  229.         }
  230.         else if (obj instanceof DERBMPString)
  231.         {
  232.             return indent + "BMPString(" + ((DERBMPString)obj).getString() + ") " + System.getProperty("line.separator");
  233.         }
  234.         else if (obj instanceof DERT61String)
  235.         {
  236.             return indent + "T61String(" + ((DERT61String)obj).getString() + ") " + System.getProperty("line.separator");
  237.         }
  238.         else if (obj instanceof DERUTCTime)
  239.         {
  240.             return indent + "UTCTime(" + ((DERUTCTime)obj).getTime() + ") " + System.getProperty("line.separator");
  241.         }
  242.         else if (obj instanceof DERUnknownTag)
  243.         {
  244.             return indent + "Unknown " + Integer.toString(((DERUnknownTag)obj).getTag(), 16) + " " + new String(Hex.encode(((DERUnknownTag)obj).getData())) + System.getProperty("line.separator");
  245.         }
  246.         else
  247.         {
  248.             return indent + obj.toString() + System.getProperty("line.separator");
  249.         }
  250.     }
  252.     /**
  253.      * dump out a DER object as a formatted string
  254.      *
  255.      * @param obj the DERObject to be dumped out.
  256.      */
  257.     public static String dumpAsString(
  258.         Object   obj)
  259.     {
  260. if (obj instanceof DERObject)
  261. {
  262.          return _dumpAsString("", (DERObject)obj);
  263. }
  264. else if (obj instanceof DEREncodable)
  265. {
  266.          return _dumpAsString("", ((DEREncodable)obj).getDERObject());
  267. }
  269. return "unknown object type " + obj.toString();
  270.     }
  271. }