/// <summary>
/// 将private改为internal virtual，为了项目不止使用iso8583报文通讯
/// </summary>
/// <returns></returns>
internal virtual TransResult transact()
{
TransResult ret = TransResult.E_SEND_FAIL;
Socket socket = null;
if (RealEnv)
{
if (!GPRSConnect())
{
return(ret);
}
IPAddress ip = IPAddress.Parse(serverIP);
IPEndPoint ipe = new IPEndPoint(ip, serverPort); //把ip和端口转化为IPEndPoint实例
socket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
try
{
socket.SendTimeout = sendTimeOut * 1000;
socket.ReceiveTimeout = recvTimeOut * 1000;
socket.Connect(ipe);
}
catch (Exception err)
{
Log.Error(this.GetType().Name, err);
return(ret);
}
}
try
{
ret = TransResult.E_PACKET_FAIL;
byte[] SendBytes = new byte[0];
PackFix();
Packet();
if (SendPackage.IsNull())
{
return(TransResult.E_INVALID);
}
byte[] MAC = new byte[8];
//计算mac并将mac打包进去
if (NeedCalcMac())
{
byte[] macKey = null;
if (EnType == EncryptType.Hardware)
{
macKey = KeyManager.GetEnMacKey(mSectionName);
}
else
{
macKey = KeyManager.GetDeMacKey(mSectionName);
}
if (macKey == null)
{
throw new Exception("尚未设置MAC密钥");
}
if ((DType == DesType.Des && macKey.Length == 16) || (DType == DesType.TripleDes && macKey.Length == 8))
{
throw new Exception("MAC密钥长度不符合DES算法");
}
int macField = 64;
if (SendPackage.ExistBit(1))
{
macField = 128;
}
SendPackage.SetArrayData(macField, new byte[8]);
byte[] tmp = SendPackage.GetSendBuffer();
byte[] macBytes = new byte[tmp.Length - 8];
Array.Copy(tmp, macBytes, macBytes.Length);
if (CalcMacByMackey(macBytes, MAC))
{
SendPackage.SetArrayData(macField, MAC);
}
else
{
SendPackage.ClearBitAndValue(macField);
throw new Exception("计算MAC失败");
}
}
SendBytes = SendPackage.GetSendBuffer();
if (SendBytes.Length <= 0)
{
return(ret);
}
byte[] head = PackBytesAtFront(SendBytes.Length);
headLen = head.Length;
int sendLen_all = SendBytes.Length + head.Length;
byte[] sendstr_all = new byte[sendLen_all];
Array.Copy(head, sendstr_all, head.Length);
Array.Copy(SendBytes, 0, sendstr_all, head.Length, SendBytes.Length);
//记录原始发送日志
//CLog.LogPackage(sendstr_all, SendPackage, CLog.LogType.Send);
CLog.Info(CLog.GetLog(sendstr_all, SendPackage, this, CLog.LogType.Send));
ret = TransResult.E_SEND_FAIL;
if (RealEnv)
{
int sendLen = 0;
sendLen = socket.Send(sendstr_all, sendLen_all, 0);
if (sendLen <= 0)
{
socket.Close();
return(ret);
}
}
//从服务器端接受返回信息
ret = TransResult.E_RECV_FAIL;
int recvLen = 0;
if (RealEnv)
{
sRecvBuffer.Initialize();
recvLen = socket.Receive(sRecvBuffer, sRecvBuffer.Length, 0);
if (recvLen <= 0)
{
socket.Close();
return(ret);
}
byte[] RecvBytes = new byte[recvLen - headLen];
Array.Copy(sRecvBuffer, headLen, RecvBytes, 0, recvLen - headLen);
byte[] headBytes = new byte[headLen];
Array.Copy(sRecvBuffer, headBytes, headLen);
//解包
ret = TransResult.E_UNPACKET_FAIL;
FrontBytes = headBytes;
HandleFrontBytes(headBytes);//根据报文头来判断是否要下载密钥
RecvPackage.ParseBuffer(RecvBytes, SendPackage.ExistValue(0));
//记录原始接收日志
byte[] logRecv = new byte[recvLen];
Array.Copy(sRecvBuffer, logRecv, recvLen);
//CLog.LogPackage(logRecv, RecvPackage, CLog.LogType.Recv);
CLog.Info(CLog.GetLog(logRecv, RecvPackage, this, CLog.LogType.Recv));
bool nRet = UnPackFix();
if (!mInvokeSetResult)
{
throw new Exception("should invoke SetRespInfo() in UnPackFix()");
}
mInvokeSetResult = false;
if (nRet)
{
ret = TransResult.E_SUCC;
}
else
{
ret = TransResult.E_HOST_FAIL;
}
}
else
{
ret = TransResult.E_SUCC;
}
}
catch (System.Exception ex)
{
Log.Error(this.GetType().Name, ex);
}
finally
{
if (socket != null && socket.Connected)
{
socket.Close();
}
}
return(ret);
}
protected virtual bool CalcMacByPinkey(byte[] macBytes, byte[] MAC)
{
bool ret = false;
switch (AlType)
{
case AlgorithmType.ECB:
ret = CalcMac_ECB(this, macBytes, KeyManager.GetEnPinKey(mSectionName), KeyManager.GetDePinKey(mSectionName), MAC);
break;
case AlgorithmType.CBC:
case AlgorithmType.X99:
ret = CalcMac_CBC_X99(this, macBytes, KeyManager.GetEnPinKey(mSectionName), KeyManager.GetDePinKey(mSectionName), AlType, MAC);
break;
}
return(ret);
}