public override byte[] GetBytes()
{
int index = 0;
var bytes = new byte[MaslAu2Frame.FrameLength];
// ETY + MTI + DF
bytes[index++] = this.GetHeaderByte();
// 消息发起方ID
var tempBuf = RsspEncoding.ToNetUInt32(this.ServerID);
Array.Copy(tempBuf, 1, bytes, index, 3);
index += 3;
// 安全特征
bytes[index++] = (byte)this.EncryAlgorithm;
// 随机数
Array.Copy(this.RandomA, 0, bytes, index, 8);
index += 8;
// MAC
Array.Copy(this.MAC, 0, bytes, index, 8);
index += 8;
return(bytes);
}
public override byte[] GetBytes()
{
var bytes = new byte[this.Length];
int startIndex = 0;
// 主叫编号
var tempBuf = RsspEncoding.ToNetUInt32(this.InitiatorID);
Array.Copy(tempBuf, 0, bytes, startIndex, tempBuf.Length);
startIndex += 4;
// 被叫编号
tempBuf = RsspEncoding.ToNetUInt32(this.ResponderID);
Array.Copy(tempBuf, 0, bytes, startIndex, tempBuf.Length);
startIndex += 4;
// 服务类型
bytes[startIndex++] = (byte)this.ServiceType;
// 用户数据
if (this.UserData != null)
{
Array.Copy(this.UserData, 0, bytes, startIndex, this.UserData.Length);
}
return(bytes);
}
public override void ParseBytes(byte[] bytes, int startIndex, int endIndex)
{
if ((endIndex - startIndex + 1) < MaslAu2Frame.FrameLength)
{
throw new Au2LengthException();
}
var orgStartIndex = startIndex;
// ETY + MTI + DF
this.ParseHeaderByte(bytes[startIndex++]);
// 消息发起方ID
this.ServerID = (RsspEncoding.ToHostUInt32(bytes, orgStartIndex) & 0xFFFFFF);
startIndex += 3;
// 安全特征
this.EncryAlgorithm = (EncryptionAlgorithm)bytes[startIndex++];
// 随机数
Array.Copy(bytes, startIndex, this.RandomA, 0, 8);
startIndex += 8;
// MAC
Array.Copy(bytes, startIndex, this.MAC, 0, 8);
startIndex += 8;
}
public override byte[] GetBytes()
{
var bytes = new byte[25];
int startIndex = 0;
// 消息类型
bytes[startIndex++] = (byte)this.FrameType;
// 序列号
var tempBuf = RsspEncoding.ToNetUInt16(this.SequenceNo);
Array.Copy(tempBuf, 0, bytes, startIndex, tempBuf.Length);
startIndex += 2;
// Padding
startIndex += SaiFrame.TtsPaddingLength;
// 初始值
tempBuf = RsspEncoding.ToNetUInt32(this.InitialValue);
Array.Copy(tempBuf, 0, bytes, startIndex, tempBuf.Length);
startIndex += 4;
// 版本
tempBuf = RsspEncoding.ToNetUInt32(this.Version);
Array.Copy(tempBuf, 0, bytes, startIndex, tempBuf.Length);
startIndex += 4;
// EC周期
tempBuf = RsspEncoding.ToNetUInt16(this.Interval);
Array.Copy(tempBuf, 0, bytes, startIndex, tempBuf.Length);
return(bytes);
}
public override byte[] GetBytes()
{
var bytes = new byte[15];
int startIndex = 0;
// 消息类型
bytes[startIndex++] = (byte)this.FrameType;
// 序列号
var tempBuf = RsspEncoding.ToNetUInt16(this.SequenceNo);
Array.Copy(tempBuf, 0, bytes, startIndex, tempBuf.Length);
startIndex += 2;
// sender timestamp
tempBuf = RsspEncoding.ToNetUInt32(this.SenderTimestamp);
Array.Copy(tempBuf, 0, bytes, startIndex, tempBuf.Length);
startIndex += 4;
// Responsor last timestamp
tempBuf = RsspEncoding.ToNetUInt32(this.ReceiverLastSendTimestamp);
Array.Copy(tempBuf, 0, bytes, startIndex, tempBuf.Length);
startIndex += 4;
// sender last timestamp
tempBuf = RsspEncoding.ToNetUInt32(this.SenderLastRecvTimestamp);
Array.Copy(tempBuf, 0, bytes, startIndex, tempBuf.Length);
startIndex += 4;
return(bytes);
}
public override void ParseBytes(byte[] bytes)
{
int startIndex = 0;
// 消息类型
this.FrameType = (SaiFrameType)bytes[startIndex++];
// 序列号
this.SequenceNo = RsspEncoding.ToHostUInt16(bytes, startIndex);
startIndex += 2;
// sender timestamp
this.SenderTimestamp = RsspEncoding.ToHostUInt32(bytes, startIndex);
startIndex += 4;
// Responsor last timestamp
this.ReceiverLastSendTimestamp = RsspEncoding.ToHostUInt32(bytes, startIndex);
startIndex += 4;
// sender last timestamp
this.SenderLastRecvTimestamp = RsspEncoding.ToHostUInt32(bytes, startIndex);
startIndex += 4;
// valid
this.Valid = (bytes[startIndex++] == 1);
}
public override void ParseBytes(byte[] bytes)
{
int startIndex = 0;
// 消息类型
this.FrameType = (SaiFrameType)bytes[startIndex++];
// 序列号
this.SequenceNo = RsspEncoding.ToHostUInt16(bytes, startIndex);
startIndex += 2;
// Padding
startIndex += SaiFrame.TtsPaddingLength;
// 初始值
this.InitialValue = RsspEncoding.ToHostUInt32(bytes, startIndex);
startIndex += 4;
// 版本
this.Version = RsspEncoding.ToHostUInt32(bytes, startIndex);
startIndex += 4;
// EC周期
this.Interval = RsspEncoding.ToHostUInt16(bytes, startIndex);
}
public override void ParseBytes(byte[] bytes)
{
int startIndex = 0;
// 消息类型
this.FrameType = (SaiFrameType)bytes[startIndex++];
// 序列号
this.SequenceNo = RsspEncoding.ToHostUInt16(bytes, startIndex);
startIndex += 2;
// sender timestamp
this.SenderTimestamp = RsspEncoding.ToHostUInt32(bytes, startIndex);
startIndex += 4;
// Responsor last timestamp
this.ReceiverLastSendTimestamp = RsspEncoding.ToHostUInt32(bytes, startIndex);
startIndex += 4;
// sender last timestamp
this.SenderLastRecvTimestamp = RsspEncoding.ToHostUInt32(bytes, startIndex);
startIndex += 4;
// user data
var len = bytes.Length - startIndex;
if (len > 0)
{
this.UserData = new byte[len];
Array.Copy(bytes, startIndex, this.UserData, 0, len);
}
}
public override byte[] GetBytes()
{
if (this.UserDataLength > SaiFrame.MaxUserDataLength)
{
throw new ArgumentException(string.Format("SAI层用户数据长度不能超过{0}。", SaiFrame.MaxUserDataLength));
}
var bytes = new byte[19 + this.UserDataLength];
int startIndex = 0;
// 消息类型
bytes[startIndex++] = (byte)this.FrameType;
// 序列号
var tempBuf = RsspEncoding.ToNetUInt16(this.SequenceNo);
Array.Copy(tempBuf, 0, bytes, startIndex, tempBuf.Length);
startIndex += 2;
// Padding
startIndex += SaiFrame.TtsPaddingLength;
// EC计数
tempBuf = RsspEncoding.ToNetUInt32(this.EcValue);
Array.Copy(tempBuf, 0, bytes, startIndex, tempBuf.Length);
startIndex += 4;
// user data
if (this.UserData != null)
{
Array.Copy(this.UserData, 0, bytes, startIndex, this.UserData.Length);
}
return(bytes);
}
public override void ParseBytes(byte[] bytes)
{
int startIndex = 0;
// 消息类型
this.FrameType = (SaiFrameType)bytes[startIndex++];
// 序列号
this.SequenceNo = RsspEncoding.ToHostUInt16(bytes, startIndex);
startIndex += 2;
// Padding
startIndex += SaiFrame.TtsPaddingLength;
// EC计数
this.EcValue = RsspEncoding.ToHostUInt32(bytes, startIndex);
startIndex += 4;
// user data
var len = bytes.Length - startIndex;
if (len > 0)
{
this.UserData = new byte[len];
Array.Copy(bytes, startIndex, this.UserData, 0, len);
}
}
public static bool ContainsFileStartFlag(byte[] data, int dataCount)
{
// 20：一个估算值，用于防止传输的用户数据中包含文件起始标志。
return(dataCount >= CustomFile.StartFlagLen &&
dataCount < (CustomFile.StartFlagLen + 20) &&
CustomFile.StartFlag == RsspEncoding.ToHostString(data, 0, CustomFile.StartFlagLen));
}
private ushort GetPacketLength(byte[] buffer, int startIndex)
{
if ((buffer == null) || (buffer.Length - startIndex < 2))
{
return(0);
}
return(RsspEncoding.ToHostUInt16(buffer, startIndex));
}
/// <summary>
/// 解析指定的字节流。
/// </summary>
public void ParseBytes(byte[] bytes)
{
if (bytes == null || bytes.Length < AleFrame.HeadLength)
{
throw new AleFrameParsingException("无法将指定的字节流解析为AleFrame，长度不够。");
}
int startIndex = 0;
// 包长度
var pktLen = RsspEncoding.ToHostUInt16(bytes, startIndex);
startIndex += AleFrame.SizeofHeadLen;
// 版本
this.Version = bytes[startIndex++];
// 应用类型
this.ApplicationType = bytes[startIndex++];
// 传输序列号
this.SequenceNo = RsspEncoding.ToHostUInt16(bytes, startIndex);
startIndex += 2;
// N/R标志
this.IsNormal = (bytes[startIndex++] == 1);
// 包类型
this.FrameType = (AleFrameType)bytes[startIndex++];
// 校验和
if (this.FrameType != AleFrameType.KAA && this.FrameType != AleFrameType.KANA) // 生命信息不需要校验
{
//var actualCrcValue = BitConverter.ToUInt16(bytes, startIndex);
var actualCrcValue = RsspEncoding.ToHostUInt16(bytes, startIndex);
var expectedCrcValue = CrcTool.CaculateCCITT16(bytes, 0, 8);
if (actualCrcValue != expectedCrcValue)
{
throw new AleFrameParsingException(string.Format("解析Ale协议帧时发生异常，CRC检验不一致，期望值是{0}，实际值是{1}。",
expectedCrcValue, actualCrcValue));
}
}
startIndex += 2;
// 用户数据
var userDataLen = pktLen - (AleFrame.HeadLength - AleFrame.SizeofHeadLen);
if (userDataLen < 0)
{
throw new AleFrameParsingException(string.Format("将字节流解析为ALE帧时发生异常，用户数据长度为负值{0}。", userDataLen));
}
this.UserData = AleUserData.Parse(this.FrameType, bytes, startIndex, startIndex + userDataLen - 1);
}
public override void ParseBytes(byte[] bytes, int startIndex, int endIndex)
{
// 应答方编号
this.ServerID = RsspEncoding.ToHostUInt32(bytes, startIndex);
startIndex += 4;
// 用户数据
var len = endIndex - startIndex + 1;
if (len > 0)
{
this.UserData = new byte[len];
Array.Copy(bytes, startIndex, this.UserData, 0, len);
}
}
public override void ParseBytes(byte[] bytes)
{
int startIndex = 0;
// 消息类型
this.FrameType = (SaiFrameType)bytes[startIndex++];
// 序列号
this.SequenceNo = RsspEncoding.ToHostUInt16(bytes, startIndex);
startIndex += 2;
// sender timestamp
this.SenderTimestamp = RsspEncoding.ToHostUInt32(bytes, startIndex);
startIndex += 4;
// Responsor last timestamp
this.ReceiverLastSendTimestamp = RsspEncoding.ToHostUInt32(bytes, startIndex);
startIndex += 4;
// sender last timestamp
this.SenderLastRecvTimestamp = RsspEncoding.ToHostUInt32(bytes, startIndex);
startIndex += 4;
// 偏移标志
bool negative = (bytes[startIndex] == 1);
startIndex++;
// |最小偏移值|
this.OffsetMin = RsspEncoding.ToHostUInt32(bytes, startIndex);
if (negative)
{
this.OffsetMin = -this.OffsetMin;
}
startIndex += 4;
// 偏移标志
negative = (bytes[startIndex] == 1);
startIndex++;
// |最大偏移值|
this.OffsetMax = RsspEncoding.ToHostUInt32(bytes, startIndex);
if (negative)
{
this.OffsetMax = -this.OffsetMax;
}
startIndex += 4;
}
public override byte[] GetBytes()
{
var bytes = new byte[25];
int startIndex = 0;
// 消息类型
bytes[startIndex++] = (byte)this.FrameType;
// 序列号
var tempBuf = RsspEncoding.ToNetUInt16(this.SequenceNo);
Array.Copy(tempBuf, 0, bytes, startIndex, tempBuf.Length);
startIndex += 2;
// sender timestamp
tempBuf = RsspEncoding.ToNetUInt32(this.SenderTimestamp);
Array.Copy(tempBuf, 0, bytes, startIndex, tempBuf.Length);
startIndex += 4;
// Responsor last timestamp
tempBuf = RsspEncoding.ToNetUInt32(this.ReceiverLastSendTimestamp);
Array.Copy(tempBuf, 0, bytes, startIndex, tempBuf.Length);
startIndex += 4;
// sender last timestamp
tempBuf = RsspEncoding.ToNetUInt32(this.SenderLastRecvTimestamp);
Array.Copy(tempBuf, 0, bytes, startIndex, tempBuf.Length);
startIndex += 4;
// 偏移标志
bytes[startIndex++] = (this.OffsetMin >= 0) ? (byte)0 : (byte)1;
// |最小偏移值|
tempBuf = RsspEncoding.ToNetUInt32((uint)Math.Abs(this.OffsetMin));
Array.Copy(tempBuf, 0, bytes, startIndex, 4);
startIndex += 4;
// 偏移标志
bytes[startIndex++] = (this.OffsetMax >= 0) ? (byte)0 : (byte)1;
// |最大偏移值|
tempBuf = RsspEncoding.ToNetUInt32((uint)Math.Abs(this.OffsetMax));
Array.Copy(tempBuf, 0, bytes, startIndex, 4);
startIndex += 4;
return(bytes);
}
/// <summary>
/// 获取序列化后的字节流。
/// </summary>
public byte[] GetBytes()
{
var bytes = new byte[AleFrame.HeadLength + this.UserDataLength];
var startIndex = 0;
// 包长度
var tempBuf = RsspEncoding.ToNetUInt16(this.PacketLength);
Array.Copy(tempBuf, 0, bytes, startIndex, tempBuf.Length);
startIndex += AleFrame.SizeofHeadLen;
// 版本
bytes[startIndex++] = this.Version;
// 应用类型
bytes[startIndex++] = this.ApplicationType;
// 传输序列号
tempBuf = RsspEncoding.ToNetUInt16(this.SequenceNo);
Array.Copy(tempBuf, 0, bytes, startIndex, tempBuf.Length);
startIndex += 2;
// N/R标志
bytes[startIndex++] = (byte)(this.IsNormal ? 1 : 0);
// 包类型
bytes[startIndex++] = (byte)this.FrameType;
// 校验和
var crcValue = CrcTool.CaculateCCITT16(bytes, 0, 8);
//tempBuf = BitConverter.GetBytes(crcValue);
tempBuf = RsspEncoding.ToNetUInt16(crcValue);
Array.Copy(tempBuf, 0, bytes, startIndex, tempBuf.Length);
startIndex += 2;
// 用户数据
var userData = this.UserData.GetBytes();
if (userData != null)
{
Array.Copy(userData, 0, bytes, startIndex, this.UserDataLength);
}
return(bytes);
}
public override byte[] GetBytes()
{
var bytes = new byte[this.Length];
int startIndex = 0;
// 应答方编号
var tempBuf = RsspEncoding.ToNetUInt32(this.ServerID);
Array.Copy(tempBuf, 0, bytes, startIndex, tempBuf.Length);
startIndex += 4;
// 用户数据
if (this.UserData != null)
{
Array.Copy(this.UserData, 0, bytes, startIndex, this.UserData.Length);
}
return(bytes);
}
public override byte[] GetBytes()
{
if (this.UserDataLength > SaiFrame.MaxUserDataLength)
{
throw new ArgumentException(string.Format("SAI层用户数据长度不能超过{0}。", SaiFrame.MaxUserDataLength));
}
var bytes = new byte[15 + this.UserDataLength];
int startIndex = 0;
// 消息类型
bytes[startIndex++] = (byte)this.FrameType;
// 序列号
var tempBuf = RsspEncoding.ToNetUInt16(this.SequenceNo);
Array.Copy(tempBuf, 0, bytes, startIndex, tempBuf.Length);
startIndex += 2;
// sender timestamp
tempBuf = RsspEncoding.ToNetUInt32(this.SenderTimestamp);
Array.Copy(tempBuf, 0, bytes, startIndex, tempBuf.Length);
startIndex += 4;
// Responsor last timestamp
tempBuf = RsspEncoding.ToNetUInt32(this.ReceiverLastSendTimestamp);
Array.Copy(tempBuf, 0, bytes, startIndex, tempBuf.Length);
startIndex += 4;
// sender last timestamp
tempBuf = RsspEncoding.ToNetUInt32(this.SenderLastRecvTimestamp);
Array.Copy(tempBuf, 0, bytes, startIndex, tempBuf.Length);
startIndex += 4;
// user data
if (this.UserData != null)
{
Array.Copy(this.UserData, 0, bytes, startIndex, this.UserData.Length);
}
return(bytes);
}
public override void ParseBytes(byte[] bytes, int startIndex, int endIndex)
{
// 主叫编号
this.InitiatorID = RsspEncoding.ToHostUInt32(bytes, startIndex);
startIndex += 4;
// 被叫编号
this.ResponderID = RsspEncoding.ToHostUInt32(bytes, startIndex);
startIndex += 4;
// 服务类型
this.ServiceType = (ServiceType)bytes[startIndex++];
// 用户数据
var len = endIndex - startIndex + 1;
if (len > 0)
{
this.UserData = new byte[len];
Array.Copy(bytes, startIndex, this.UserData, 0, len);
}
}
/// <summary>
/// 保存收到的用户数据
/// </summary>
public void SaveUserData(uint remoteID, byte[] userData)
{
try
{
var dataLength = userData.Length;
if (CustomFile.ContainsFileStartFlag(userData, dataLength))
{
// 先关闭旧的文件
this.RemoveFile(remoteID);
// 创建新的业务文件
var ext = RsspEncoding.ToHostString(userData, CustomFile.StartFlagLen, dataLength - CustomFile.StartFlagLen);
var bdfile = new CustomFile(remoteID.ToString(), ext);
this.AddFile(remoteID, bdfile);
}
else if (CustomFile.ContainsFileEndFlag(userData, dataLength))
{
// 关闭业务文件
this.RemoveFile(remoteID);
}
else
{
// 保存收到的数据
var theFile = this.GetFile(remoteID);
if (theFile != null)
{
theFile.Write(userData);
}
}
}
catch (System.Exception ex)
{
LogUtility.Error(ex);
}
}
private void SendCustomFile()
{
FileStream fs = null;
BinaryReader br = null;
Byte[] userData = null;
var dest = this.GetDest();
try
{
// Create the reader for data.
fs = new FileStream(_fileNameToSend, FileMode.Open, FileAccess.Read);
br = new BinaryReader(fs);
for (int n = 0; n < _sendTimes; n++)
{
try
{
// 发送文件起始标志与扩展名
if (_fileBeginFlagEnabled)
{
userData = RsspEncoding.ToNetString(CustomFile.StartFlag + Path.GetExtension(_fileNameToSend));
var outPkg = new OutgoingPackage(dest, userData);
_nodeComm.Send(outPkg);
}
// Read and send data
fs.Position = 0;
do
{
userData = br.ReadBytes(_packetSize);
var outPkg = new OutgoingPackage(dest, userData);
_nodeComm.Send(outPkg);
// 如果文件发送完成，则立即结束
if (userData.Length < _packetSize)
{
break;
}
// 发送间隔
if (_sendExitEvent.WaitOne(_sendInterval, false))
{
break;
}
} while (fs.Length != fs.Position);
}
finally
{
userData = RsspEncoding.ToNetString(CustomFile.EndFlag);
// 发送文件传送结束标志
if (_fileBeginFlagEnabled)
{
var outPkg = new OutgoingPackage(dest, userData);
_nodeComm.Send(outPkg);
}
}
}
}
catch (Exception /*ex*/)
{
}
finally
{
if (fs != null)
{
fs.Close();
}
_sendThread = null;
}
}
public static bool ContainsFileEndFlag(byte[] data, int dataCount)
{
return(dataCount == CustomFile.EndFlagLen &&
CustomFile.EndFlag == RsspEncoding.ToHostString(data, 0, CustomFile.EndFlagLen));
}
