public static bool IsOidStr(string inStr)
{
bool retval = false;
MemoryStream ms = new MemoryStream();
Oid xoid = new Oid();
xoid.Encode(ms, inStr);
ms.Close();
retval = true;
return retval;
}
public static bool EditNode(IWin32Window parent, Asn1Node aNode, bool enableTagEdit, bool pureHexMode)
{
byte[] val;
byte[] data;
FormNodeContentEditor ed = new FormNodeContentEditor();
ed.aNode = aNode;
MemoryStream ms = new MemoryStream();
ed.checker = FormNodeContentEditor.DataChecker.None;
ed.enableTagEdit = enableTagEdit;
ed.pureHexMode = pureHexMode;
if (
((aNode.Tag&Asn1Tag.TAG_MASK) == Asn1Tag.BIT_STRING) &&
(aNode.ChildNodeCount<1))
{
ed.panelUnusedBits.Visible = true;
ed.textBoxUnusedBits.Text = aNode.UnusedBits.ToString();
}
else
{
ed.panelUnusedBits.Visible = false;
}
if (pureHexMode)
{
ed.checker = DataChecker.Hex;
ed.ShowDialog(parent);
if (!ed.isOK) return false;
data = Asn1Util.HexStrToBytes(ed.GetValueStr());
aNode.Data = data;
}
else
{
byte[] oidVal;
switch (aNode.Tag)
{
case Asn1Tag.OBJECT_IDENTIFIER:
ed.checker = DataChecker.Oid;
ed.ShowDialog(parent);
if (!ed.isOK) return false;
Oid xoid = new Oid();
xoid.Encode(ms, ed.GetValueStr());
ms.Position = 0;
oidVal = new byte[ms.Length];
ms.Read(oidVal, 0, (int)ms.Length);
ms.Close();
aNode.Data = oidVal;
break;
case Asn1Tag.RELATIVE_OID:
ed.checker = DataChecker.Roid;
ed.ShowDialog(parent);
if (!ed.isOK) return false;
RelativeOid roid = new RelativeOid();
roid.Encode(ms, ed.GetValueStr());
ms.Position = 0;
oidVal = new byte[ms.Length];
ms.Read(oidVal, 0, (int)ms.Length);
ms.Close();
aNode.Data = oidVal;
break;
case Asn1Tag.PRINTABLE_STRING:
case Asn1Tag.IA5_STRING:
case Asn1Tag.UNIVERSAL_STRING:
case Asn1Tag.VISIBLE_STRING:
case Asn1Tag.NUMERIC_STRING:
case Asn1Tag.UTC_TIME:
case Asn1Tag.GENERAL_STRING:
case Asn1Tag.GENERALIZED_TIME:
ed.ShowDialog(parent);
if (!ed.isOK) return false;
val = Asn1Util.StringToBytes(ed.GetValueStr());
aNode.Data = val;
break;
case Asn1Tag.UTF8_STRING:
ed.ShowDialog(parent);
if (!ed.isOK) return false;
UTF8Encoding u8 = new UTF8Encoding(false);
val = u8.GetBytes(ed.GetValueStr());
aNode.Data = val;
break;
case Asn1Tag.BMPSTRING:
ed.ShowDialog(parent);
if (!ed.isOK) return false;
byte[] tmpval = Asn1Util.StringToBytes(ed.GetValueStr());
val = new byte[tmpval.Length*2];
for (int i = 0; i<tmpval.Length; i++)
{
val[i*2] = 0;
val[i*2+1] = tmpval[i];
}
aNode.Data = val;
break;
case Asn1Tag.INTEGER:
case Asn1Tag.BIT_STRING:
ed.checker = DataChecker.Hex;
ed.ShowDialog(parent);
if (!ed.isOK) return false;
aNode.UnusedBits = (byte)(Convert.ToUInt16(ed.textBoxUnusedBits.Text)%8);
data = Asn1Util.HexStrToBytes(ed.GetValueStr());
aNode.Data = data;
break;
default:
if ((aNode.Tag & Asn1Tag.TAG_MASK) == 6) // Visible string for certificate
{
ed.ShowDialog(parent);
if (!ed.isOK) return false;
val = Asn1Util.StringToBytes(ed.GetValueStr());
aNode.Data = val;
}
else
{
ed.checker = DataChecker.Hex;
ed.ShowDialog(parent);
if (!ed.isOK) return false;
data = Asn1Util.HexStrToBytes(ed.GetValueStr());
aNode.Data = data;
}
break;
};
}
return true;
}