x509name.java

说明： 1、里面有什么： 1.1、org.bouncycastle.*下的所有软件是bouncycastle组织开发的软件包 1.2、org.infosecurity.*下的软件包括

        this(reverse, DefaultLookUp, dirName);
    }

    /**
     * takes an X509 dir name as a string of the format "C=AU, ST=Victoria", or
     * some such, converting it into an ordered set of name attributes. lookUp 
     * should provide a table of lookups, indexed by lowercase only strings and
     * yielding a DERObjectIdentifier, other than that OID. and numeric oids
     * will be processed automatically.
     * <p>
     * If reverse is true, create the encoded version of the sequence starting
     * from the last element in the string.
     */
    public X509Name(
        boolean     reverse,
        Hashtable   lookUp,
        String      dirName)
    {
        X509NameTokenizer   nTok = new X509NameTokenizer(dirName);

        while (nTok.hasMoreTokens())
        {
            String  token = nTok.nextToken();
            int     index = token.indexOf('=');

            if (index == -1)
            {
                throw new IllegalArgumentException("badly formated directory string");
            }

            String              name = token.substring(0, index);
            String              value = token.substring(index + 1);
            DERObjectIdentifier oid = null;

            if (name.toUpperCase().startsWith("OID."))
            {
                oid = new DERObjectIdentifier(name.substring(4));
            }
            else if (name.charAt(0) >= '0' && name.charAt(0) <= '9')
            {
                oid = new DERObjectIdentifier(name);
            }
            else
            {
                oid = (DERObjectIdentifier)lookUp.get(name.toLowerCase());
                if (oid == null)
                {
                    throw new IllegalArgumentException("Unknown object id - " + name + " - passed to distinguished name");
                }
            }

            this.ordering.addElement(oid);
            this.values.addElement(value);
        }

        if (reverse)
        {
            Vector  o = new Vector();
            Vector  v = new Vector();

            for (int i = this.ordering.size() - 1; i >= 0; i--)
            {
                o.addElement(this.ordering.elementAt(i));
                v.addElement(this.values.elementAt(i));
            }

            this.ordering = o;
            this.values = v;
        }
    }

    /**
     * return false if we have characters out of the range of a printable
     * string, true otherwise.
     */
    private boolean canBePrintable(
        String  str)
    {
        for (int i = str.length() - 1; i >= 0; i--)
        {
            if (str.charAt(i) > 0x007f)
            {
                return false;
            }
        }

        return true;
    }

    public DERObject getDERObject()
    {
        if (seq == null)
        {
            ASN1EncodableVector  vec = new ASN1EncodableVector();

            for (int i = 0; i != ordering.size(); i++)
            {
                ASN1EncodableVector     v = new ASN1EncodableVector();
                DERObjectIdentifier     oid = (DERObjectIdentifier)ordering.elementAt(i);

                v.add(oid);

                String  str = (String)values.elementAt(i);

                if (oid.equals(EmailAddress))
                {
                    v.add(new DERIA5String(str));
                }
                else
                {
                    if (canBePrintable(str))
                    {
                        v.add(new DERPrintableString(str));
                    }
                    else
                    {
                        v.add(new DERUTF8String(str));
                    }
                }

                vec.add(new DERSet(new DERSequence(v)));
            }

            seq = new DERSequence(vec);
        }

        return seq;
    }

    /**
     * test for equality - note: case is ignored.
     */
    public boolean equals(Object _obj) 
    {
        if (_obj == this)
        {
            return true;
        }

        if (_obj == null || !(_obj instanceof X509Name))
        {
            return false;
        }
        
        X509Name _oxn          = (X509Name)_obj;
        int      _orderingSize = ordering.size();

        if (_orderingSize != _oxn.ordering.size()) 
        {
			return false;
		}
		
		boolean[] _indexes = new boolean[_orderingSize];

		for(int i = 0; i < _orderingSize; i++) 
		{
			boolean _found = false;
			String  _oid   = ((DERObjectIdentifier)ordering.elementAt(i)).getId();
			String  _val   = (String)values.elementAt(i);
			
			for(int j = 0; j < _orderingSize; j++) 
			{
				if(_indexes[j] == true)
				{
					continue;
				}
				
				String _oOID = ((DERObjectIdentifier)_oxn.ordering.elementAt(j)).getId();
				String _oVal = (String)_oxn.values.elementAt(j);

                // was equalsIgnoreCase but MIDP doesn't like that.
				if(_oid.equals(_oOID) && _val.toLowerCase().equals(_oVal.toLowerCase()))
				{
					_indexes[j] = true;
					_found      = true;
					break;
				}

			}

			if(!_found)
			{
				return false;
			}
		}
		
		return true;
	}
	
    public int hashCode()
    {
        ASN1Sequence  seq = (ASN1Sequence)this.getDERObject();
        Enumeration   e = seq.getObjects();
        int           hashCode = 0;

        while (e.hasMoreElements())
        {
            hashCode ^= e.nextElement().hashCode();
        }

        return hashCode;
    }

    private void appendValue(
        StringBuffer        buf,
        Hashtable           oidSymbols,
        DERObjectIdentifier oid,
        String              value)
    {
        String  sym = (String)oidSymbols.get(oid);

        if (sym != null)
        {
            buf.append(sym);
        }
        else
        {
            buf.append(((DERObjectIdentifier)oid).getId());
        }

        buf.append("=");

        int     index = buf.length();

        buf.append(value);

        int     end = buf.length();

        while (index != end)
        {
            if ((buf.charAt(index) == ',')
               || (buf.charAt(index) == '"')
               || (buf.charAt(index) == '\\')
               || (buf.charAt(index) == '+')
               || (buf.charAt(index) == '<')
               || (buf.charAt(index) == '>')
               || (buf.charAt(index) == ';'))
            {
                buf.insert(index, "\\");
                index++;
                end++;
            }

            index++;
        }
    }

    /**
     * convert the structure to a string - if reverse is true the
     * oids and values are listed out starting with the last element
     * in the sequence (ala RFC 2253), otherwise the string will begin
     * with the first element of the structure. If no string definition
     * for the oid is found in oidSymbols the string value of the oid is
     * added. Two standard symbol tables are provided DefaultSymbols, and
     * RFC2253Symbols as part of this class.
     *
     * @param reverse if true start at the end of the sequence and work back.
     * @param oidSymbols look up table strings for oids.
     */
    public String toString(
        boolean     reverse,
        Hashtable   oidSymbols)
    {
        StringBuffer            buf = new StringBuffer();
        boolean                 first = true;

        if (reverse)
        {
            for (int i = ordering.size() - 1; i >= 0; i--)
            {
                if (first)
                {
                    first = false;
                }
                else
                {
                    buf.append(",");
                }

                appendValue(buf, oidSymbols, 
                            (DERObjectIdentifier)ordering.elementAt(i),
                            (String)values.elementAt(i));
            }
        }
        else
        {
            for (int i = 0; i < ordering.size(); i++)
            {
                if (first)
                {
                    first = false;
                }
                else
                {
                    buf.append(",");
                }

                appendValue(buf, oidSymbols, 
                            (DERObjectIdentifier)ordering.elementAt(i),
                            (String)values.elementAt(i));
            }
        }

        return buf.toString();
    }

    public String toString()
    {
        return toString(DefaultReverse, DefaultSymbols);
    }
}