public static void SendError(string errmsg)
{
// string dummyError = "ERR0, Testing Error Message and Error Message Value!";
SQLHelper getCityControl = new SQLHelper("SELECT ip FROM units WHERE unit_id='" + cityID + "'"); //get city IP
getCityControl.Run_Cmd();
getCityControl.SetIPs();
List <string> city_ip_list = getCityControl.Get_List(); // shove city ip in a list (probably un-necessary)
foreach (var ip in city_ip_list)
{
var client = new TcpClient(ip, portNum); // connect to the city ip
NetworkStream ns = client.GetStream(); // establish the network stream
Krypto krypto = new Krypto(); // Start Krypto
string encErr = krypto.Encrypt(errmsg, AESKey); // Encrypt the data
byte[] outgoing_msg = Encoding.ASCII.GetBytes(encErr); // turn our encrypted message into bytes
try
{
ns.Write(outgoing_msg, 0, outgoing_msg.Length); // try to send it
}
catch (Exception e)
{
Console.WriteLine(e.ToString()); // if any errors, print them and break
break;
}
}
}
/// <summary>
/// Initializes the City TCP server
/// </summary>
/// <returns>
/// none
/// </returns>
public static void CityServer()
{
bool done = false;
// Listen for connections on our defined port
var listener = new TcpListener(IPAddress.Any, portNum);
listener.Start();
// Echo we've started listening
Console.WriteLine("City Control Listening on port " + portNum + "...");
while (!done)
{
TcpClient client = listener.AcceptTcpClient(); // accept the connection
NetworkStream ns = client.GetStream(); // establish a network stream
Byte[] data = new Byte[256];
String responseString = string.Empty;
// try to send our data
try
{
Int32 bytes = ns.Read(data, 0, data.Length);
Console.WriteLine("Receiving...");
responseString = System.Text.Encoding.ASCII.GetString(data, 0, bytes);
if (!String.IsNullOrEmpty(responseString))
{
Krypto krypto = new Krypto(); // start krypto
string decString = krypto.Decrypt(responseString, AESKey); // Decrept the string
Console.WriteLine("Success! Received Error " + decString); // write the message we received
// split the individual errors by the ; delimiter
string[] errors = decString.Split(';', StringSplitOptions.RemoveEmptyEntries);
// for every error in errors
foreach (var error in errors)
{
// establish placeholders
var time = "";
var uid = "";
var code = "";
var msg = "";
// split into columns by the , delimiter
string[] columns = error.Split(",");
// for every column in columns
foreach (var column in columns)
{
if (!String.IsNullOrEmpty(column))
{
if (column.Contains("TIME:"))
{
time = column.Substring(column.LastIndexOf(':') + 1);
}
if (column.Contains("UID:"))
{
uid = column.Substring(column.LastIndexOf(':') + 1);
}
if (column.Contains("CODE:"))
{
code = column.Substring(column.LastIndexOf(':') + 1);
}
if (column.Contains("MSG:"))
{
msg = column.Substring(column.LastIndexOf(':') + 1);
}
}
}
// Insert the error into the database
SQLHelper insertcmd = new SQLHelper("INSERT INTO errors (timestamp, unit_id, code, message) VALUES(" + time + ",'" + uid + "'," + "'" + code + "'," + "'" + msg + "')");
insertcmd.Run_ErrCmd();
// Receipt
Console.WriteLine(time + ": ERROR " + code + " | Unit " + uid + " | " + msg);
}
// Close the network stream and client
ns.Close();
client.Close();
}
else
{
Console.WriteLine("Unable to receive data...");
}
}
catch (Exception e)
{
Console.WriteLine(e.ToString());
break;
}
}
}
