x509name.java

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                v.add(converter.getConvertedValue(oid, str));
 
                if (lstOid == null 
                    || ((Boolean)this.added.elementAt(i)).booleanValue())
                {
                    sVec.add(new DERSequence(v));
                }
                else
                {
                    vec.add(new DERSet(sVec));
                    sVec = new ASN1EncodableVector();
                    
                    sVec.add(new DERSequence(v));
                }
                
                lstOid = oid;
            }
            
            vec.add(new DERSet(sVec));
            
            seq = new DERSequence(vec);
        }

        return seq;
    }

    /**
     * @param inOrder if true the order of both X509 names must be the same,
     * as well as the values associated with each element.
     */
    public boolean equals(Object obj, boolean inOrder)
    {
        if (!inOrder)
        {
            return this.equals(obj);
        }

        if (obj == this)
        {
            return true;
        }

        if (!(obj instanceof X509Name || obj instanceof ASN1Sequence))
        {
            return false;
        }

        DERObject derO = ((DEREncodable)obj).getDERObject();

        if (this.getDERObject().equals(derO))
        {
            return true;
        }

        X509Name other;

        try
        {
            other = X509Name.getInstance(obj);
        }
        catch (IllegalArgumentException e)
        {
            return false;
        }

        int      orderingSize = ordering.size();

        if (orderingSize != other.ordering.size())
        {
            return false;
        }

        for (int i = 0; i < orderingSize; i++)
        {
            DERObjectIdentifier  oid = (DERObjectIdentifier)ordering.elementAt(i);
            DERObjectIdentifier  oOid = (DERObjectIdentifier)other.ordering.elementAt(i);

            if (oid.equals(oOid))
            {
                String value = (String)values.elementAt(i);
                String oValue = (String)other.values.elementAt(i);

                if (!equivalentStrings(value, oValue))
                {
                    return false;
                }
            }
            else
            {
                return false;
            }
        }

        return true;
    }

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

        if (!(obj instanceof X509Name || obj instanceof ASN1Sequence))
        {
            return false;
        }
        
        DERObject derO = ((DEREncodable)obj).getDERObject();
        
        if (this.getDERObject().equals(derO))
        {
            return true;
        }

        X509Name other;

        try
        {
            other = X509Name.getInstance(obj);
        }
        catch (IllegalArgumentException e)
        { 
            return false;
        }

        int      orderingSize = ordering.size();

        if (orderingSize != other.ordering.size())
        {
            return false;
        }
        
        boolean[] indexes = new boolean[orderingSize];
        int       start, end, delta;

        if (ordering.elementAt(0).equals(other.ordering.elementAt(0)))   // guess forward
        {
            start = 0;
            end = orderingSize;
            delta = 1;
        }
        else  // guess reversed - most common problem
        {
            start = orderingSize - 1;
            end = -1;
            delta = -1;
        }

        for (int i = start; i != end; i += delta)
        {
            boolean              found = false;
            DERObjectIdentifier  oid = (DERObjectIdentifier)ordering.elementAt(i);
            String               value = (String)values.elementAt(i);

            for (int j = 0; j < orderingSize; j++)
            {
                if (indexes[j])
                {
                    continue;
                }
                
                DERObjectIdentifier oOid = (DERObjectIdentifier)other.ordering.elementAt(j);

                if (oid.equals(oOid))
                {
                    String oValue = (String)other.values.elementAt(j);

                    if (equivalentStrings(value, oValue))
                    {
                        indexes[j] = true;
                        found      = true;
                        break;
                    }
                }
            }

            if (!found)
            {
                return false;
            }
        }
        
        return true;
    }

    private boolean equivalentStrings(String s1, String s2)
    {
        String value = canonicalize(s1);
        String oValue = canonicalize(s2);
        
        if (!value.equals(oValue))
        {
            value = stripInternalSpaces(value);
            oValue = stripInternalSpaces(oValue);

            if (!value.equals(oValue))
            {
                return false;
            }
        }

        return true;
    }

    private String canonicalize(String s)
    {
        String value = Strings.toLowerCase(s.trim());
        
        if (value.length() > 0 && value.charAt(0) == '#')
        {
            DERObject obj = decodeObject(value);

            if (obj instanceof DERString)
            {
                value = Strings.toLowerCase(((DERString)obj).getString().trim());
            }
        }

        return value;
    }

    private ASN1Object decodeObject(String oValue)
    {
        try
        {
            return ASN1Object.fromByteArray(Hex.decode(oValue.substring(1)));
        }
        catch (IOException e)
        {
            throw new IllegalStateException("unknown encoding in name: " + e);
        }
    }

    private String stripInternalSpaces(
        String str)
    {
        StringBuffer res = new StringBuffer();

        if (str.length() != 0)
        {
            char    c1 = str.charAt(0);

            res.append(c1);

            for (int k = 1; k < str.length(); k++)
            {
                char    c2 = str.charAt(k);
                if (!(c1 == ' ' && c2 == ' '))
                {
                    res.append(c2);
                }
                c1 = c2;
            }
        }

        return res.toString();
    }

    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(oid.getId());
        }

        buf.append('=');

        int     index = buf.length();
        
        buf.append(value);

        int     end = buf.length();

        if (value.length() >= 2 && value.charAt(0) == '\\' && value.charAt(1) == '#')
        {
            index += 2;   
        }

        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.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();
        Vector                  components = new Vector();
        boolean                 first = true;

        StringBuffer ava = null;

        for (int i = 0; i < ordering.size(); i++)
        {
            if (((Boolean)added.elementAt(i)).booleanValue())
            {
                ava.append('+');
                appendValue(ava, oidSymbols,
                    (DERObjectIdentifier)ordering.elementAt(i),
                    (String)values.elementAt(i));
            }
            else
            {
                ava = new StringBuffer();
                appendValue(ava, oidSymbols,
                    (DERObjectIdentifier)ordering.elementAt(i),
                    (String)values.elementAt(i));
                components.addElement(ava);
            }
        }

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

                buf.append(components.elementAt(i).toString());
            }
        }
        else
        {
            for (int i = 0; i < components.size(); i++)
            {
                if (first)
                {
                    first = false;
                }
                else
                {
                    buf.append(',');
                }

                buf.append(components.elementAt(i).toString());
            }
        }

        return buf.toString();
    }

    private String bytesToString(
        byte[] data)
    {
        char[]  cs = new char[data.length];

        for (int i = 0; i != cs.length; i++)
        {
            cs[i] = (char)(data[i] & 0xff);
        }

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