/// <summary>
/// Get a copy of an existing CHPN field
/// </summary>
/// <param name="id"></param>
/// <returns></returns>
public CField GetField(int id)
{
try
{
CField f = new CField(Fields[id]);
return(f);
}
catch (System.Exception) { return(null); }
}
/// <summary>
/// Creates an APDU from an existing buffer building a database of fields as contained inside the APDU
/// </summary>
/// <param name="buffer">The buffer to scan to search the fields.</param>
public CAPDU(byte[] buffer)
{
int offset = 0;
// get message ID
ID = new CAPDUID(buffer, offset, ref offset);
if (0 != ID.Value)
{
// Get the bitmap
Bitmap = new CBitmap(buffer, offset, ref offset);
if (Bitmap.IsSet)
{
// arrived here we can process the fields described inside the bitmap
CFields fields = new CFields();
// offset now points to the beginning of the fields - WE ONLY CONSIDER BITMAP1 as bitmap2 fields are not described in the dictionary
for (int field = 2; field <= 0xFF && 0 < buffer.Length - offset; field++)
{
if (Bitmap.IsBitSet(field))
{
// create and retrieve field
//CField fg = fields.GetField(field);
//CField f = new CField(fg.ID, fg.Type, fg.Minlen, fg.Maxlen);
CField f = fields.GetField(field);
if (f.SetData(buffer, offset, out offset))
{
// save the field inside the list of fields
try
{
AddField(f);
}
catch (Exception ex)
{
CLog.AddException(MethodBase.GetCurrentMethod().Name, ex, "CHAMP: " + field);
}
}
}
}
}
}
}
/// <summary>
/// Add a field to the message
/// </summary>
/// <param name="f">The field to add <see cref="CField"/></param>
/// <returns>The string representation of the field</returns>
public string AddField(CField f)
{
try
{
if (0 != f.RawdataLen)
{
Fields.Add(f.ID, f);
Bitmap.SetBit(f.ID);
return(f.ToString());
}
else
{
return(string.Empty);
}
}
catch (Exception ex)
{
CLog.AddException(MethodBase.GetCurrentMethod().Name, ex);
return(string.Empty);
}
}
/// <summary>
/// Create the list of fields defined in the CHPN protocol
/// </summary>
public CFields()
{
CField f = new CField(2, FieldType.NUMERIC, 0, 19);
Fields.Add(f.ID, f);
f = new CField(3, FieldType.NUMERIC, 6, 6);
Fields.Add(f.ID, f);
f = new CField(4, FieldType.NUMERIC, 12, 12);
Fields.Add(f.ID, f);
f = new CField(7, FieldType.NUMERIC, 10, 10);
Fields.Add(f.ID, f);
f = new CField(11, FieldType.NUMERIC, 6, 6);
Fields.Add(f.ID, f);
f = new CField(12, FieldType.NUMERIC, 6, 6);
Fields.Add(f.ID, f);
f = new CField(13, FieldType.NUMERIC, 4, 4);
Fields.Add(f.ID, f);
f = new CField(18, FieldType.NUMERIC, 4, 4);
Fields.Add(f.ID, f);
f = new CField(22, FieldType.NUMERIC, 3, 3);
Fields.Add(f.ID, f);
f = new CField(25, FieldType.NUMERIC, 2, 2);
Fields.Add(f.ID, f);
f = new CField(32, FieldType.NUMERIC, 1, 11);
Fields.Add(f.ID, f);
f = new CField(35, FieldType.CMC7, 0, 35);
Fields.Add(f.ID, f);
f = new CField(37, FieldType.ALPHA_NUMERIC, 12, 12);
Fields.Add(f.ID, f);
f = new CField(38, FieldType.ALPHA_NUMERIC, 6, 6);
Fields.Add(f.ID, f);
f = new CField(39, FieldType.ALPHA_NUMERIC, 2, 2);
Fields.Add(f.ID, f);
f = new CField(40, FieldType.ALPHA_NUMERIC, 3, 3);
Fields.Add(f.ID, f);
f = new CField(41, FieldType.EXTENDED_ALPHA_NUMERIC, 8, 8);
Fields.Add(f.ID, f);
f = new CField(42, FieldType.EXTENDED_ALPHA_NUMERIC, 15, 15);
Fields.Add(f.ID, f);
f = new CField(43, FieldType.EXTENDED_ALPHA_NUMERIC, 40, 40);
Fields.Add(f.ID, f);
f = new CField(44, FieldType.EXTENDED_ALPHA_NUMERIC, 20, 25);
Fields.Add(f.ID, f);
f = new CField(45, FieldType.NUMERIC, 15, 15);
Fields.Add(f.ID, f);
f = new CField(46, FieldType.NUMERIC, 4, 4);
Fields.Add(f.ID, f);
f = new CField(47, FieldType.BINARY, 1, 65535, true);
Fields.Add(f.ID, f);
f = new CField(48, FieldType.BINARY, 1, 65535, true);
Fields.Add(f.ID, f);
f = new CField(49, FieldType.NUMERIC, 4, 4);
Fields.Add(f.ID, f);
}
