public DataHeader(byte[] buffer, int RevNumber)
{
if (RevNumber < 31)
{
isValid = false;
return;
}
//第一个字节
isValid = (buffer[0] & 0x40) == 0x40;
//第二个字节
isValid = (buffer[1] & 0x40) == 0x40;
//数据长度高低位
byteLength[0] = buffer[3];
byteLength[1] = buffer[2];
dataLength = RevNumber;
//数据包尾验证
isValid = (buffer[dataLength - 1] & 0x0A) == 0x0A;
isValid = (buffer[dataLength - 2] & 0x0D) == 0x0D;
//设备ID
_deviceId = new byte[20];
Buffer.BlockCopy(buffer, 5, _deviceId, 0, 20);
//数据类型
_type = new byte[2];
Buffer.BlockCopy(buffer, 25, _type, 0, 2);
//数据内容
_content = new byte[dataLength];
Buffer.BlockCopy(buffer, 0, _content, 0, dataLength);
deviceId = DataHander.HexStringToASCII(_deviceId).ToString().Trim('\0');
type = DataHander.ByteToString(_type).Replace(" ", "");
}
private void AcceptConn(IAsyncResult ar)
{
try
{
//如果服务器停止了服务,就不能再接收新的客户端
if (!Started)
{
return;
}
//缓冲区的大小
byte[] buffer = new byte[512];
//获取用户定义的对象，它限定或包含关于异步操作的信息。
Socket listener = (Socket)ar.AsyncState;
//异步接受传入的连接尝试，并创建新的 Socket 来处理远程主机通信。
Socket client = listener.EndAccept(ar);
Session state = new Session(m_id++, client);
state.ChatEvent += new EventHandler <ChatEventArgs>(state_ChatEvent);
//登录认证,只有等ReceiveLoginValidateCallback执行完后才会继续
LoginValidataDone.Reset();
client.BeginReceive(buffer, 0, 512, SocketFlags.None, new AsyncCallback(ReceiveLoginValidateCallback), client);
LoginValidataDone.WaitOne();
DataHeader dh = new DataHeader(buffer, num);
IRec irec = new ReceiveData();
irec.InsertRawData(DataHander.ByteToString(dh.Content).Replace(" ", ""), "");
Handshake hh = new Handshake(Encoding.UTF8.GetString(buffer, 0, 512));
//进行一个初步的协议判定，如果不是websocket协议，直接断开,忽略掉
if (hh.GetValue("Upgrade").ToLower() != "websocket" && hh.GetValue("Upgrade").ToLower() != "")
{
try
{
client.Shutdown(SocketShutdown.Both); client.Close();
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
using (StreamWriter sw = new StreamWriter(@"C:\Logs\job1" + DateTime.Now.ToString("yyyyMMddHH") + ".txt", true, System.Text.Encoding.UTF8))
{
sw.WriteLine(ex.Message);
}
}
//继续接受客户端
m_server.BeginAccept(new AsyncCallback(AcceptConn), m_server);
return;
}
if (dh.Type == "1001")
{
state.Send(dh.GetLoginResponse());
try
{
var model = DataHander.LoginHander(dh);
irec.InsertGPSData(model);
}
catch (Exception)
{
}
}
else
{
//服务器作出握手回应
state.Response(hh.Response);
}
state.Start();
//将客户端信息置于列表中
if (hh.GetValue("Upgrade").ToLower() == "websocket")
{
m_clients.Add(state.DevId, state);
}
//继续接受客户端
m_server.BeginAccept(new AsyncCallback(AcceptConn), m_server);
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
//设置异步方法接受客户端连接
m_server.BeginAccept(new AsyncCallback(AcceptConn), m_server);
using (StreamWriter sw = new StreamWriter(@"C:\Logs\job2" + DateTime.Now.ToString("yyyyMMddHH") + ".txt", true, System.Text.Encoding.UTF8))
{
sw.WriteLine(ex.Message);
}
}
}
/// <summary>
/// 获取数据包长度
/// </summary>
/// <param name="bytes"></param>
/// <returns></returns>
public static int Length(byte[] bytes)
{
string s = DataHander.ByteToString(bytes).Replace(" ", "");
return(DataHander.GetHexadecimalValue(s));
}
/// <summary>
/// 应客户端要求建立连接后的处理线程
/// </summary>
/// <param name="ia"></param>
private void AcceptCallBack(IAsyncResult ar)
{
try
{
//判断是否是websocket或socket
//bool isWebsocket = true;
//定义一个新的客户端对象
Session state = (Session)ar.AsyncState;
Socket client = state._workSocket;
#region === 消息处理 ===
//登录成功,则进入消息等待中
int RevNumber = 0;
if (client.Connected)
{
#region === 正常或非正常的断线处理 ===
try
{
RevNumber = client.EndReceive(ar);
if (RevNumber == 0)
{
return;
}
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
using (StreamWriter sw = new StreamWriter(@"C:\Logs\job13" + DateTime.Now.ToString("yyyyMMddHH") + ".txt", true, System.Text.Encoding.UTF8))
{
sw.WriteLine(ex.Message);
}
return;
}
#endregion
try
{
DataHeader dh = new DataHeader(RecvDataBuffer, RevNumber);
#region 原始数据插入数据库
IRec irec1 = new ReceiveData();
irec1.InsertRawData(DataHander.ByteToString(dh.Content).Replace(" ", ""), "");
#endregion
if (dh.IsValid)
{
IRec irec = new ReceiveData();
switch (dh.Type)
{
case "1001":
var model = DataHander.LoginHander(dh);
irec.InsertGPSData(model);
break;
case "4001":
var model1 = DataHander.GPSHander(dh);
irec.InsertGPSData(model1);
break;
default:
break;
}
}
}
catch (Exception ex)
{
using (StreamWriter sw = new StreamWriter(@"C:\Logs\job7" + DateTime.Now.ToString("yyyyMMddHH") + ".txt", true, System.Text.Encoding.UTF8))
{
sw.WriteLine(ex.Message);
}
}
//继续接收来自来客户端的数据
client.BeginReceive(RecvDataBuffer, 0, RecvDataBuffer.Length, SocketFlags.None,
new AsyncCallback(AcceptCallBack), state);
}
#endregion
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
using (StreamWriter sw = new StreamWriter(@"C:\Logs\job6" + DateTime.Now.ToString("yyyyMMddHH") + ".txt", true, System.Text.Encoding.UTF8))
{
sw.WriteLine(ex.Message);
}
}
}