/** 处理服务器收到的帧
*/
public void Execute(BaseSession session, Frame frame)
{
byte[] body = null;
if (frame.IsBodyHasDataInStream() == false && frame.GetTotalBodySize() > 0)
{
body = frame.GetBodyBytes();
string info = Encoding.UTF8.GetString(body, 0, body.Length);
Console.WriteLine("客户端发过来：" + info + "【CmdHeartbeat】");
}
Frame frm_send = new Frame(frame.GetFrameSerialNumber(), GetT(), body); //要发给客户端的帧
session.Send(frm_send);
}
/** 处理服务器收到的帧
*/
public void Execute(BaseSession session, Frame frame)
{
if (frame.IsBodyHasDataInStream() == false && frame.GetTotalBodySize() > 0)
{
//客户端发过来的是UFT-8字符串
byte[] body = frame.GetBodyBytes();
string info = Encoding.UTF8.GetString(body, 0, body.Length);
Console.WriteLine("客户端发过来：" + info + "【CmdHello】");
}
//服务器回应"Hello"字符串
string replay = "Hello";
byte[] replay_body = Encoding.UTF8.GetBytes(replay);
Frame frm_send = new Frame(frame.GetFrameSerialNumber(), GetT(), replay_body); //要发给客户端的帧
session.Send(frm_send);
}
/** 处理服务器收到的帧
*/
public void Execute(BaseSession session, Frame frame)
{
byte[] body = null;
if (frame.IsBodyHasDataInStream() == false && frame.GetTotalBodySize() > 0)
{
body = frame.GetBodyBytes();
string info = Encoding.UTF8.GetString(body, 0, body.Length);
Console.WriteLine("客户端发过来：" + info + "【CmdBye】");
}
//服务器回应"Bye"字符串
string replay = "Bye ! Close session now !";
byte[] replay_body = Encoding.UTF8.GetBytes(replay);
Frame frm_send = new Frame(frame.GetFrameSerialNumber(), GetT(), replay_body); //要发给客户端的帧
session.Send(frm_send);
//服务器关闭Session
session.SetOffline();
}
/** 处理服务器收到的帧
*/
public void Execute(BaseSession session, Frame frame)
{
Console.WriteLine("客户端发过来：上传文件（" + frame.GetTotalBodySize() + "字节）【CmdUploadFile】");
UInt16 SN = 0;
//上传文件使用这样的嵌套的 TLV 帧结构，TLV1(V1=TLV2+TLV3)：T1=UPLOADFILE，T2=FILENAME，T3=FILEDATA
UInt16 t_file_name = 0; //T2 - FILENAME（文件名）
UInt16 t_file_data = 0; //T3 - FILEDATA（文件数据）
//检查是大型帧（没有字节数组，只有流对象），还是小型帧（只有字节数组，没有流对象）
BinaryReader br = null;
if (frame.IsBodyHasDataInStream())
{
br = frame.GetBodyStream(); //大型帧
}
#region STLV2 - FILENAME（文件名）
//帧序列号 - 子帧的序列号是0
if (frame.IsBodyHasDataInStream())
{
SN = br.ReadUInt16();
}
else
{
SN = BitConverter.ToUInt16(frame.GetBodyBytes(), 0);
}
//帧类型值
if (frame.IsBodyHasDataInStream())
{
t_file_name = br.ReadUInt16();
}
else
{
t_file_name = BitConverter.ToUInt16(frame.GetBodyBytes(), 2);
}
if (t_file_name != (UInt16)EMyCommand.FILENAME)
{
throw new Exception("无文件名子帧");
}
//帧体长度
UInt32 L_file_name = 0;
if (frame.IsBodyHasDataInStream())
{
L_file_name = br.ReadUInt32();
}
else
{
L_file_name = BitConverter.ToUInt32(frame.GetBodyBytes(), 4);
}
byte[] fnb = new byte[L_file_name];
//帧体
if (frame.IsBodyHasDataInStream())
{
br.Read(fnb, 0, fnb.Length);
}
else
{
Array.Copy(frame.GetBodyBytes(), 8, fnb, 0, L_file_name);
}
string file_name = Encoding.UTF8.GetString(fnb);
#endregion
#region 文件保存到当前目录
string exe_path = System.Diagnostics.Process.GetCurrentProcess().MainModule.FileName;
int pos = exe_path.LastIndexOf('\\');
string path = exe_path.Substring(0, pos + 1);
string file_path = path + file_name;
#endregion
FileStream fs = new FileStream(file_path, FileMode.Create);
BinaryWriter bw = new BinaryWriter(fs);
#region 文件数据
//帧序列号 - 子帧的序列号是0
if (frame.IsBodyHasDataInStream())
{
SN = br.ReadUInt16();
}
else
{
SN = BitConverter.ToUInt16(frame.GetBodyBytes(), 8 + (int)L_file_name);
}
//帧类型值
if (frame.IsBodyHasDataInStream())
{
t_file_data = br.ReadUInt16();
}
else
{
t_file_data = BitConverter.ToUInt16(frame.GetBodyBytes(), 10 + (int)L_file_name);
}
if (t_file_data != (UInt16)EMyCommand.FILEDATA)
{
throw new Exception("无文件数据子帧");
}
//帧体
UInt32 L_file_data = 0;
if (frame.IsBodyHasDataInStream())
{
L_file_data = br.ReadUInt32();
}
else
{
L_file_data = BitConverter.ToUInt32(frame.GetBodyBytes(), 8 + (int)L_file_name + 4);
}
byte[] tmp = new byte[1024 * 1024]; //每次读1MBytes
UInt32 block_count = (L_file_data / (UInt32)tmp.Length) + (L_file_data % (UInt32)tmp.Length > 0 ? (UInt32)1 : (UInt32)0);
for (int i = 0; i < block_count; ++i)
{
UInt32 last_block_size = (L_file_data % (UInt32)tmp.Length > 0 ? (L_file_data % (UInt32)tmp.Length) : (UInt32)tmp.Length);
UInt32 block_size = (i == block_count - 1 ? last_block_size : (UInt32)tmp.Length);
if (frame.IsBodyHasDataInStream())
{
br.Read(tmp, 0, (int)block_size);
}
else
{
Array.Copy(frame.GetBodyBytes(), 8 + (int)L_file_name + 8 + i * tmp.Length, tmp, 0, block_size);
}
bw.Write(tmp, 0, (int)block_size);
}
#endregion
bw.Close();
bw.Dispose();
fs.Close();
fs.Dispose();
byte[] body = Encoding.UTF8.GetBytes("OK");
Frame frm_send = new Frame(frame.GetFrameSerialNumber(), GetT(), body); //要发给客户端的帧
session.Send(frm_send);
}