static void Main(string[] args)
{
string login = string.Empty;
string pass = string.Empty;
string host = string.Empty;
var correctParameters = args.Length == 1;
if (correctParameters)
{
try
{
var connectString = args[0];
var passDelimiter = connectString.IndexOf(":");
var hostDelimiter = connectString.IndexOf("@");
login = connectString.Substring(0, passDelimiter);
pass = connectString.Substring(passDelimiter + 1, hostDelimiter - passDelimiter - 1);
host = connectString.Substring(hostDelimiter + 1, connectString.Length - hostDelimiter - 1);
correctParameters = !string.IsNullOrWhiteSpace(login) && !string.IsNullOrWhiteSpace(pass) && !string.IsNullOrWhiteSpace(host);
}
catch
{
correctParameters = false;
}
}
if (!correctParameters)
{
Console.WriteLine("Incorrect parameter. Usage: ftpClient <login>:<password>@<host>");
return;
}
Console.WriteLine($"Connecting to: {host} using LOGIN: {login} & PASSWORD: {pass}");
var mode = TransferMode.Active;
var controlChannel = new ControlChannel();
if (!controlChannel.Init(host, login, pass))
{
return;
}
OperationBase currentOperation = null;
string cmd = null;
do
{
Console.Write("ftpClient> ");
var cmdLine = Console.ReadLine();
var cmdParams = cmdLine.Split(' ');
cmd = cmdParams.Length > 0 ? cmdParams[0].ToLower() : string.Empty;
currentOperation = null;
switch (cmd)
{
case "ls":
case "dir":
{
currentOperation = new DirectoryListingOperation(cmdParams.Length > 1 ? cmdParams[1] : null);
break;
}
case "recv":
case "get":
{
if (cmdParams.Length < 2 || cmdParams.Length > 3)
{
Console.WriteLine($"Incorrect command usage! Type: {cmdParams[0].ToUpper()} remote_file_name [local_file_name]");
continue;
}
currentOperation =
new DownloadOperation(
new DirectoryInfo(Environment.CurrentDirectory),
cmdParams[1],
cmdParams.Length > 2 ? cmdParams[2] : null);
break;
}
case "send":
case "put":
{
if (cmdParams.Length < 2 || cmdParams.Length > 3)
{
Console.WriteLine($"Incorrect command usage! Type: {cmdParams[0].ToUpper()} local_file_name [remote_file_name]");
continue;
}
currentOperation =
new UploadOperation(
new DirectoryInfo(Environment.CurrentDirectory),
cmdParams[1],
cmdParams.Length > 2 ? cmdParams[2] : null);
break;
}
case "delete":
{
if (cmdParams.Length != 2)
{
Console.WriteLine($"Incorrect command usage! Type: DELETE remote_file_name");
continue;
}
string response;
controlChannel.SendCommand($"DELE {cmdParams[1]}", out response);
break;
}
case "mode":
{
if (cmdParams.Length != 2 || (cmdParams[1].ToLower() != "a" && cmdParams[1].ToLower() != "p"))
{
Console.WriteLine("Incorrect command usage! Type: MODE [a|p]");
continue;
}
mode = cmdParams[1].ToLower() == "a" ? TransferMode.Active : TransferMode.Passive;
Console.WriteLine($"{mode.ToString().ToUpper()} data transfer mode set.");
break;
}
case "mkdir":
{
if (cmdParams.Length != 2)
{
Console.WriteLine("Incorrect command usage! Type: MKDIR directory_name");
continue;
}
string response;
controlChannel.SendCommand($"MKD {cmdParams[1]}", out response);
break;
}
case "rmdir":
{
if (cmdParams.Length != 2)
{
Console.WriteLine("Incorrect command usage! Type: RMDIR directory_name");
continue;
}
string response;
controlChannel.SendCommand($"RMD {cmdParams[1]}", out response);
break;
}
case "cd":
{
if (cmdParams.Length != 2)
{
Console.WriteLine("Incorrect command usage! Type: CD directory_name");
continue;
}
string response;
controlChannel.SendCommand($"CWD {cmdParams[1]}", out response);
break;
}
case "cdup":
{
string response;
controlChannel.SendCommand($"CDUP", out response);
break;
}
case "site":
{
if (cmdParams.Length > 2)
{
Console.WriteLine($"Incorrect command usage! Type: SITE [site_specific_command]");
continue;
}
string response;
controlChannel.SendCommand($"SITE {(cmdParams.Length > 1 ? cmdParams[1] : string.Empty)}", out response);
currentOperation = null;
break;
}
case "quit":
{
string response;
controlChannel.SendCommand("QUIT", out response);
currentOperation = null;
break;
}
case "help":
{
Console.WriteLine("List of supported commands:");
Console.WriteLine("DIR(LS) [directory_name] - list content of the specified directory.");
Console.WriteLine("RECV(GET) <server_file_name> [local_file_name] - download file from the server.");
Console.WriteLine("SEND(PUT) <local_file_name> [server_file_name] - upload file to the server.");
Console.WriteLine("DELETE <server_file_name> - delete file on the server.");
Console.WriteLine("MODE <a|p> - set active or passive mode for the data channel.");
Console.WriteLine("MKDIR <directory_name> - create directory on the server.");
Console.WriteLine("RMDIR <directory_name> - remove directory on the server.");
Console.WriteLine("CD <directory_name> - change current server directory.");
Console.WriteLine("CDUP - change current server directory one level up.");
Console.WriteLine("SITE [custom_parameter] - site specific command.");
Console.WriteLine("QUIT - close ftpClient");
break;
}
default:
{
Console.WriteLine("Unknown command! Type HELP for the list of supported commands.");
break;
}
}
if (currentOperation != null && currentOperation.Init(controlChannel, mode))
{
try
{
currentOperation.Process(controlChannel).Wait();
}
catch (Exception e)
{
Console.WriteLine(e);
}
finally
{
currentOperation.Finish();
}
}
} while (cmd != "quit" && controlChannel.IsConnected);
controlChannel.Close();
}
static void Main(string[] args)
{
string login = string.Empty;
string pass = string.Empty;
string host = string.Empty;
var correctParameters = args.Length == 1;
if (correctParameters)
{
try
{
var connectString = args[0];
var passDelimiter = connectString.IndexOf(":");
var hostDelimiter = connectString.IndexOf("@");
login = connectString.Substring(0, passDelimiter);
pass = connectString.Substring(passDelimiter + 1, hostDelimiter - passDelimiter - 1);
host = connectString.Substring(hostDelimiter + 1, connectString.Length - hostDelimiter - 1);
correctParameters = !string.IsNullOrWhiteSpace(login) && !string.IsNullOrWhiteSpace(pass) && !string.IsNullOrWhiteSpace(host);
}
catch
{
correctParameters = false;
}
}
if (!correctParameters)
{
Console.WriteLine("Incorrect parameter. Usage: ftpClient <login>:<password>@<host>");
return;
}
Console.WriteLine($"Connecting to: {host} using LOGIN: {login} & PASSWORD: {pass}");
var mode = TransferMode.Active;
var controlChannel = new ControlChannel();
if (!controlChannel.Init(host, login, pass))
{
return;
}
OperationBase currentOperation = null;
string cmd = null;
do
{
Console.Write("ftpClient> ");
var cmdLine = Console.ReadLine();
var cmdParams = cmdLine.Split(' ');
cmd = cmdParams.Length > 0 ? cmdParams[0].ToLower() : string.Empty;
currentOperation = null;
switch (cmd)
{
case "ls":
case "dir":
{
currentOperation = new DirectoryListingOperation(cmdParams.Length > 1 ? cmdParams[1] : null);
break;
}
case "recv":
case "get":
{
if (cmdParams.Length < 2 || cmdParams.Length > 3)
{
Console.WriteLine($"Incorrect command usage! Type: {cmdParams[0].ToUpper()} remote_file_name [local_file_name]");
continue;
}
currentOperation =
new DownloadOperation(
new DirectoryInfo(Environment.CurrentDirectory),
cmdParams[1],
cmdParams.Length > 2 ? cmdParams[2] : null);
break;
}
case "send":
case "put":
{
if (cmdParams.Length < 2 || cmdParams.Length > 3)
{
Console.WriteLine($"Incorrect command usage! Type: {cmdParams[0].ToUpper()} local_file_name [remote_file_name]");
continue;
}
currentOperation =
new UploadOperation(
new DirectoryInfo(Environment.CurrentDirectory),
cmdParams[1],
cmdParams.Length > 2 ? cmdParams[2] : null);
break;
}
case "delete":
{
if (cmdParams.Length != 2)
{
Console.WriteLine($"Incorrect command usage! Type: DELETE remote_file_name");
continue;
}
string response;
controlChannel.SendCommand($"DELE {cmdParams[1]}", out response);
break;
}
case "mode":
{
if (cmdParams.Length != 2 || (cmdParams[1].ToLower() != "a" && cmdParams[1].ToLower() != "p"))
{
Console.WriteLine("Incorrect command usage! Type: MODE [a|p]");
continue;
}
mode = cmdParams[1].ToLower() == "a" ? TransferMode.Active : TransferMode.Passive;
Console.WriteLine($"{mode.ToString().ToUpper()} data transfer mode set.");
break;
}
case "mkdir":
{
if (cmdParams.Length != 2)
{
Console.WriteLine("Incorrect command usage! Type: MKDIR directory_name");
continue;
}
string response;
controlChannel.SendCommand($"MKD {cmdParams[1]}", out response);
break;
}
case "rmdir":
{
if (cmdParams.Length != 2)
{
Console.WriteLine("Incorrect command usage! Type: RMDIR directory_name");
continue;
}
string response;
controlChannel.SendCommand($"RMD {cmdParams[1]}", out response);
break;
}
case "cd":
{
if (cmdParams.Length != 2)
{
Console.WriteLine("Incorrect command usage! Type: CD directory_name");
continue;
}
string response;
controlChannel.SendCommand($"CWD {cmdParams[1]}", out response);
break;
}
case "cdup":
{
string response;
controlChannel.SendCommand($"CDUP", out response);
break;
}
case "site":
{
if (cmdParams.Length > 2)
{
Console.WriteLine($"Incorrect command usage! Type: SITE [site_specific_command]");
continue;
}
string response;
controlChannel.SendCommand($"SITE {(cmdParams.Length > 1 ? cmdParams[1] : string.Empty)}", out response);
currentOperation = null;
break;
}
case "quit":
{
string response;
controlChannel.SendCommand("QUIT", out response);
currentOperation = null;
break;
}
case "help":
{
Console.WriteLine("List of supported commands:");
Console.WriteLine("DIR(LS) [directory_name] - list content of the specified directory.");
Console.WriteLine("RECV(GET) <server_file_name> [local_file_name] - download file from the server.");
Console.WriteLine("SEND(PUT) <local_file_name> [server_file_name] - upload file to the server.");
Console.WriteLine("DELETE <server_file_name> - delete file on the server.");
Console.WriteLine("MODE <a|p> - set active or passive mode for the data channel.");
Console.WriteLine("MKDIR <directory_name> - create directory on the server.");
Console.WriteLine("RMDIR <directory_name> - remove directory on the server.");
Console.WriteLine("CD <directory_name> - change current server directory.");
Console.WriteLine("CDUP - change current server directory one level up.");
Console.WriteLine("SITE [custom_parameter] - site specific command.");
Console.WriteLine("QUIT - close ftpClient");
break;
}
default:
{
Console.WriteLine("Unknown command! Type HELP for the list of supported commands.");
break;
}
}
if (currentOperation != null && currentOperation.Init(controlChannel, mode))
{
try
{
currentOperation.Process(controlChannel).Wait();
}
catch (Exception e)
{
Console.WriteLine(e);
}
finally
{
currentOperation.Finish();
}
}
} while (cmd != "quit" && controlChannel.IsConnected);
controlChannel.Close();
}