/// <summary>
/// 将获取到的消息重新发送到队列中, 根据配置, 可以转发到其他MQ队列, 也可以执行重试计数
/// </summary>
protected void ReSendMQ()
{
if (CurrentMessage == null)
{
return;
}
if (string.IsNullOrEmpty(MyConfig.RetryAddress) == false)
{
//失败转发
try
{
MessageQueueTools.SendMessage(MyConfig.RetryAddress, CurrentMessage);
}
catch (Exception ex)
{
ThisLogger.Error(ex, MyConfig.RetryAddress, CurrentMessage.Body);
}
}
else if (MyConfig.RetryCount > 0)
{
//失败重试
int TryTimes = 0;
try
{
if (string.IsNullOrEmpty(CurrentMessage.Label) || int.TryParse(CurrentMessage.Label, out TryTimes) == false)
{
TryTimes = 0;
}
if (TryTimes < MyConfig.RetryCount)
{
TryTimes = TryTimes + 1;
CurrentMessage.Label = Convert.ToString(TryTimes);
MessageQueueTools.SendMessage(MyConfig.Address, CurrentMessage);
}
else
{
ThisLogger.Warn(new LogInfo("{0}超过重试计数({1})", CurrentMessage.Body, TryTimes));
}
}
catch (Exception ex)
{
ThisLogger.Error(ex, MyConfig.Address, CurrentMessage.Label);
}
}
}
public virtual BitString GCTR(BitString icb, BitString x, BitString key)
{
// ICB must be 128 bits long
// ThisLogger.Debug("GCTR");
if (icb.BitLength != 128)
{
ThisLogger.Warn($"icbLen:{icb.BitLength}");
return(null);
}
// Step 1: If X is the empty string, then return the empty string as Y
if (x.BitLength == 0)
{
return(new BitString(0));
}
var ecb = _modeFactory.GetStandardCipher(
_engineFactory.GetSymmetricCipherPrimitive(BlockCipherEngines.Aes),
BlockCipherModesOfOperation.Ecb
);
// Step 2: Let n = ceil[ len(X)/128 ]
int n = x.BitLength.CeilingDivide(128);
// Step 3: Let X1,X2,...,Xn-1,Xn denote the unique sequence of bit
// strings such that X = X1 || X2 || ... || Xn-1 || Xn*
// X1, X2,...,Xn-1 are complete blocks
// Xn* is either a complete block or a partial block
// Step 4: Let CB1 = ICB
// Step 5: For i = 2 to n, let CBi = inc32(CBi-1)
// Step 6: For i = 1 to n-1, let Yi = Xi xor CIPH_K(CBi)
BitString cbi = icb;
BitString Y = new BitString(0);
int sx = x.BitLength - 128;
for (int i = 1; i <= (n - 1); ++i, sx -= 128)
{
if (i > 1)
{
cbi = inc_s(32, cbi);
}
BitString xi = x.Substring(sx, 128);
var cbiParam = new ModeBlockCipherParameters(
BlockCipherDirections.Encrypt,
key,
cbi
);
var h = ecb.ProcessPayload(cbiParam);
BitString yi = BitString.XOR(xi, h.Result);
Y = Y.ConcatenateBits(yi); // This is part of Step 8
}
// Step 7: Let Yn* = Xn* xor MSB_len(Xn*) (CIPH_K(CBn))
// i == n case:
if (n > 1)
{
cbi = inc_s(32, cbi);
}
var xn = x.Substring(0, 128 + sx);
var cbiParam1 = new ModeBlockCipherParameters(
BlockCipherDirections.Encrypt,
key,
cbi
);
var h1 = ecb.ProcessPayload(cbiParam1);
var yn = xn.XOR(h1.Result.GetMostSignificantBits(xn.BitLength));
Y = Y.ConcatenateBits(yn); // This is part of Step 8
// Step 8: Let Y = Y1 || ... || Yn*
// Step 9: Return Y
return(Y);
}
