public IPEndPoint InitAndGetLocalEndPoint()
{
_listener = new TcpListener(new IPEndPoint(IPAddress.Any, 0));
_listener.Start();
Console.WriteLine("File receive listening:");
int local_port = ((IPEndPoint)_listener.LocalEndpoint).Port;
return(new IPEndPoint(FileReceive.LocalIPAddress(), local_port));
}
public static async Task<string> Resolve(string input_line)
{
string[] input_array = input_line.Split();
string command = input_array[0];
if (command == "retrieve")
{
if (input_array.Length == 3)
return "store " + input_array[1] + " " + input_array[2];
else
return "error number of parameters in retrieve command.";
}
else if (command == "store")
{
if (input_array.Length == 3 && File.Exists(input_array[1]))
{
return "upload " + input_array[1] + " " + input_array[2]
+ " " + FileCommon.GetSize(input_array[1]) + " " + FileCommon.ComputeHash(input_array[1]);
}
else
return "error number of parameters in store command.";
}
else if (command == "upload")
{
if (input_array.Length == 5 && Convert.ToInt64(input_array[3])>0)
{
FileReceive fileReceive = new FileReceive(input_array[2]);
long seek_position = fileReceive.PrepareToWrite(Convert.ToInt64(input_array[3]), input_array[4]);
if (seek_position >= 0)
{
IPEndPoint localPoint = fileReceive.InitAndGetLocalEndPoint();
fileReceive.Run();
return "move " + input_array[1] + " " + input_array[2] + " "
+ seek_position + " " + localPoint.Address + " " + localPoint.Port;
}
else
{
return "error file already exists";
}
}
else
return "error file size";
}
else if (command == "move")
{
FileSend.SendFile(input_array[1], Convert.ToInt64(input_array[3]),
input_array[4], Convert.ToInt32(input_array[5]));
return null;
}
else if (command == "error")
{
return null;
}
else
return "error invalid commandline";
}
public static async Task <string> Resolve(string input_line)
{
string[] input_array = input_line.Split();
string command = input_array[0];
if (command == "retrieve")
{
if (input_array.Length == 3)
{
return("store " + input_array[1] + " " + input_array[2]);
}
else
{
return("error number of parameters in retrieve command.");
}
}
else if (command == "store")
{
if (input_array.Length == 3 && File.Exists(input_array[1]))
{
return("upload " + input_array[1] + " " + input_array[2]
+ " " + FileCommon.GetSize(input_array[1]) + " " + FileCommon.ComputeHash(input_array[1]));
}
else
{
return("error number of parameters in store command.");
}
}
else if (command == "upload")
{
if (input_array.Length == 5 && Convert.ToInt64(input_array[3]) > 0)
{
FileReceive fileReceive = new FileReceive(input_array[2]);
long seek_position = fileReceive.PrepareToWrite(Convert.ToInt64(input_array[3]), input_array[4]);
if (seek_position >= 0)
{
IPEndPoint localPoint = fileReceive.InitAndGetLocalEndPoint();
fileReceive.Run();
return("move " + input_array[1] + " " + input_array[2] + " "
+ seek_position + " " + localPoint.Address + " " + localPoint.Port);
}
else
{
return("error file already exists");
}
}
else
{
return("error file size");
}
}
else if (command == "move")
{
FileSend.SendFile(input_array[1], Convert.ToInt64(input_array[3]),
input_array[4], Convert.ToInt32(input_array[5]));
return(null);
}
else if (command == "error")
{
return(null);
}
else
{
return("error invalid commandline");
}
}