private CCTCommunicationA()
{
Log.Debug("Starting CCTCommunicationA ...");
tapArray = new byte[] { 7, 4, 5, 3, 1, 2, 3, 2, 6, 1 };
secArray = new byte[6];
emptyBuffer = new byte[] { };
buffer = new byte[256];
crc8 = new CCTCrc8();
crc16 = new CCTCrc16();
_baudrate = 9600;
readWriteLock = new Object();
// ReadComPort();
InitSerialPort();
}
public bool SendCCTalkCommand(byte srcAddress, byte destAddress, byte commandHeader, bool noParamBytes, byte[] paramBuffer, out bool noRxDataBytes, out byte[] rxDataBuffer, out string commsStatus, bool encrypted, bool useCRCChecksum, byte[] secArray)
{
bool flag1 = false, flag2 = false;
int i1 = 0, i2 = 0;
byte[] bArr1 = new byte[256];
noRxDataBytes = true;
rxDataBuffer = null;
commsStatus = "";
byte[] bArr2 = null;
byte[] bArr3 = new byte[256];
byte[] bArr4 = null;
try
{
if (_PortIsDisapiered)
{
if (CheckIfPortExists())
{
_PortIsDisapiered = false;
}
else
{
return(false);
}
}
// _logger.Debug("commandHeader:" + commandHeader.ToString());
lock (readWriteLock)
{
if (noParamBytes)
{
bArr2 = new byte[5];
}
else
{
bArr2 = new byte[(5 + paramBuffer.Length)];
}
bArr2[0] = destAddress;
if (noParamBytes)
{
bArr2[1] = 0;
}
else
{
bArr2[1] = (byte)paramBuffer.Length;
}
bArr2[2] = srcAddress;
bArr2[3] = commandHeader;
if (!noParamBytes)
{
for (int i3 = 0; i3 < paramBuffer.Length; i3++)
{
bArr2[i3 + 4] = paramBuffer[i3];
}
bArr2[3 + paramBuffer.Length + 1] = 0;
}
else
{
bArr2[4] = 0;
}
if (encrypted)
{
// byte[] bArr5 = new byte[(bArr2.Length - 2)];
//new added
int leng1 = 5;
int parambufferleng = 0;
if (paramBuffer != null)
{
parambufferleng = paramBuffer.Length;
}
leng1 = 5 + parambufferleng;
CCTCrc16 crc16 = new CCTCrc16();
crc16.Reset();
crc16.PushByte(bArr2[0]);
crc16.PushByte(bArr2[1]);
crc16.PushData(bArr2, 3, leng1 - 4);
bArr2[2] = (byte)(crc16.CRC & 255);
if (noParamBytes)
{
bArr2[4] = (byte)(crc16.CRC >> 8);
}
else if (4 + parambufferleng + 1 <= bArr2.Length)
{
bArr2[4 + parambufferleng] = (byte)(crc16.CRC >> 8);
}
else
{
Log.Error("CRC16-Encryption-Error. Buffer:" + bArr2.ToString());
flag1 = false; flag2 = false;
return(false);
}
// CalculateCRCChecksum(ref bArr2);
// CalculateSimpleChecksumForSend(ref bArr2);
//for (int i4 = 0; i4 < bArr5.Length; i4++)
//{
// bArr5[i4] = bArr2[i4 + 2];
//}
//int leng = 5;
//if (paramBuffer != null)
//{
// leng = 5 + paramBuffer.Length;
//}
CCTCrypt.Encrypt(bArr2, 2, bArr2.Length - 2, secArray);
// CCTCrypt.Encrypt(bArr2, 2, leng - 2, secArray);
//EncryptCcTalk(ref bArr5);
//for (int i5 = 0; i5 < bArr5.Length; i5++)
//{
// bArr2[i5 + 2] = bArr5[i5];
//}
// bArr5 = null;
}
else if (useCRCChecksum)
{
CalculateCRCChecksum(ref bArr2);
}
else
{
CalculateSimpleChecksumForSend(ref bArr2);
}
try
{
if (SerPort != null)
{
SerPort.DiscardInBuffer();
SerPort.Write(bArr2, 0, bArr2.Length);
if ((commandHeader == 253) || (commandHeader == 252))
{
Thread.Sleep(1500);
}
else
{
Thread.Sleep(100);
}
i1 = i2 = 0;
while (SerPort.BytesToRead != 0)
{
byte readbyte = (byte)SerPort.ReadByte();
if (i1 < bArr1.Length)
{
bArr1[i1] = readbyte;
if (i1 >= bArr2.Length)
{
bArr3[i2] = bArr1[i1];
flag2 = true;
i2++;
}
}
else
{
Log.Error("Resultbuffer < bytes read from comPort.");
}
i1++;
}
}
}
catch (Exception e)
{
Log.Error("", e);
_PortIsDisapiered = !CheckIfPortExists();
return(false);
}
if (flag2)
{
flag1 = true;
if ((commandHeader == 253) || (commandHeader == 252))
{
noRxDataBytes = false;
rxDataBuffer = new byte[i2];
for (int i6 = 0; i6 < i2; i6++)
{
rxDataBuffer[i6] = bArr3[i6];
}
}
else
{
bArr4 = new byte[i2];
for (int i7 = 0; i7 < i2; i7++)
{
bArr4[i7] = bArr3[i7];
}
bool flag3 = false;
if (encrypted)
{
byte[] bArr6 = new byte[(bArr4.Length - 2)];
for (int i8 = 0; i8 < bArr6.Length; i8++)
{
bArr6[i8] = bArr4[i8 + 2];
}
//DecryptCcTalk(ref bArr6);
//for (int i9 = 0; i9 < bArr6.Length; i9++)
//{
// bArr4[i9 + 2] = bArr6[i9];
//}
bArr6 = null;
CCTCrypt.Decrypt(bArr4, 2, bArr4.Length - 2, secArray);
// CCTCrypt.Decrypt(bArr4, 2, i2 - 2, secArray);
crc16.Reset();
crc16.PushByte(bArr4[0]);
crc16.PushByte(bArr4[1]);
crc16.PushData(bArr4, 3, i2 - 4);
flag3 = (bArr4[2] + (bArr4[i2 - 1] << 8)) == crc16.CRC;
// flag3 = CheckCRCChecksum(bArr4);
// flag3 = CheckSimpleChecksumForReceive(bArr4);
}
else if (useCRCChecksum)
{
flag3 = CheckCRCChecksum(bArr4);
}
else
{
flag3 = CheckSimpleChecksumForReceive(bArr4);
}
if (!flag3)
{
commsStatus = "Checksum Error at Receive";
flag1 = false;
}
else if (bArr4[1] != 0)
{
noRxDataBytes = false;
rxDataBuffer = new byte[bArr4[1]];
for (int i10 = 0; i10 < bArr4[1]; i10++)
{
rxDataBuffer[i10] = bArr4[i10 + 4];
}
}
}
}
else
{
commsStatus = "No Data received";
flag1 = false;
}
}
}
catch (Exception Ex)
{
Log.Error("In SendCCTalkCommand.", Ex);
_PortIsDisapiered = !CheckIfPortExists();
return(false);
}
return(flag1);
}