private (bool sucessfulInitiaition, double similarityThreshold, int miniBatchSize, string fileLocation) ServerInitiation(Socket inHandler)
{
string _fileLocation = null;
var _initiationSuccessful = false;
double _similarityThreshold = 0.0;
int _miniBatchSize = 0;
// Handshake Loop - Abort if loop fails 10 times
for (var i = 0; i < 10; i++)
{
// Receive filename from server
var _fileName = NT.ReceiveString(inHandler);
// Echo video filename to server
NT.SendString(inHandler, _fileName);
// Receive file location from server
_fileLocation = NT.ReceiveString(inHandler);
// Echo file location
NT.SendString(inHandler, _fileLocation);
// Receive similarity threshold from server
_similarityThreshold = NT.ReceiveDouble(inHandler);
// Echo similarity threshold
NT.SendDouble(inHandler, _similarityThreshold);
// Receive mini batch size from server
_miniBatchSize = NT.ReceiveInt(inHandler);
// Echo mini batch size
NT.SendInt(inHandler, _miniBatchSize);
// Send file checksum to ensure both machines are referring to same file
NT.SendString(inHandler, "file checksum test");
// Receive "file good" confirmation from server
var response = NT.ReceiveString(inHandler);
if (response == "OK")
{
// Send machine name to server
NT.SendString(inHandler, "client_name");
_initiationSuccessful = true;
break;
}
}
// Proceed to connection handler stage 2
return(_initiationSuccessful, _similarityThreshold, _miniBatchSize, _fileLocation);
}
private string ClientInitiation(Socket inHandler, string inFileName, string inFileLocation, string inChecksum)
{
string clientName = null;
// Handshake Loop - Abort if loop fails 10 times
for (var i = 0; i < 10; i++)
{
var failureDetected = false;
// Send video filename to client
NT.SendString(inHandler, inFileName);
// Receive filename echo from client
var data = NT.ReceiveString(inHandler);
// If client doesn't echo filename restart handshaking loop
if (data != inFileName)
{
failureDetected = true;
}
// Send video file location to client
NT.SendString(inHandler, inFileLocation);
// Receive file location echo from client
data = NT.ReceiveString(inHandler);
if (data != inFileLocation)
{
failureDetected = true;
}
// Send similarity threshold to client
NT.SendDouble(inHandler, _similarityThreshold);
// Receive threshold echo from client
var echoThreshold = NT.ReceiveDouble(inHandler);
if (echoThreshold != _similarityThreshold)
{
failureDetected = true;
}
// Send mini batch size to client
NT.SendInt(inHandler, _miniBatchSize);
// Receive batch size echo from client
var echoBatchSize = NT.ReceiveInt(inHandler);
if (echoBatchSize != _miniBatchSize)
{
failureDetected = true;
}
// Receive checksum response from client
data = NT.ReceiveString(inHandler);
// If returned checksum matches what server has calculated
if ((data == inChecksum) && failureDetected == false)
{
// Send file good confirmation to client
NT.SendString(inHandler, "OK");
// Receive client name
data = NT.ReceiveString(inHandler);
// Proceed to connection handler stage 2
clientName = data;
Console.ForegroundColor = ConsoleColor.Yellow;
Console.WriteLine("Client completed initiation handshake.");
Console.ResetColor();
break;
}
else
{
// Send fail message to client
NT.SendString(inHandler, "FAIL");
continue;
}
}
return(clientName);
}