private void HandleClientCommand(string[] args)
{
if (args.Length != 1 + 3)
{
this.Form.Error("Client: wrong number of arguments");
goto ClientUsage;
}
string username = args[1];
string url = args[2];
string scriptFile = args[3];
if (Clients.ContainsKey(username))
{
this.Form.Error($"Client: client {username} already exists");
return;
}
if (!url.StartsWith("http://"))
{
goto InvalidURL;
}
string[] urlElements = url.Replace("http://", "").Split(":", StringSplitOptions.RemoveEmptyEntries);
if (urlElements.Length != 2)
{
this.Form.Error(urlElements.ToString());
goto InvalidURL;
}
string host = urlElements[0];
if (!int.TryParse(urlElements[1], out int port))
{
goto InvalidPort;
}
if (port < 1024 || 65535 < port)
{
goto InvalidPort;
}
PCSGrpcService.PCSGrpcServiceClient grpcClient;
if (PCSClients.ContainsKey(host))
{
grpcClient = PCSClients[host];
}
else
{
try
{
string address = "http://" + host + ":" + PCS_PORT;
GrpcChannel channel = GrpcChannel.ForAddress(address);
grpcClient = new PCSGrpcService.PCSGrpcServiceClient(channel);
}
catch (Exception)
{
this.Form.Error("Client: unable to connect to PCS");
return;
}
}
grpcClient.Ping(new PCSPingRequest());
int clientId;
lock (ClientCountLock)
{
clientId = ++ClientCount;
}
try {
if (grpcClient.LaunchClient(new LaunchClientRequest {
ScriptFile = scriptFile, Port = port, Id = clientId
}).Ok)
{
this.Form.Log("Client: successfully launched client at " + host);
}
else
{
this.Form.Error("Client: failed launching client");
}
}
catch (Exception)
{
this.Form.Error("Client: failed sending request to PCS");
}
// register client
GrpcChannel clientChannel = GrpcChannel.ForAddress(url);
var clientGrpc = new PuppetMasterClientGrpcService.PuppetMasterClientGrpcServiceClient(clientChannel);
ClientInfo client = new ClientInfo(username, url, clientGrpc);
Clients[username] = client;
client.Init();
return;
InvalidPort:
this.Form.Error("Client: Invalid port number");
goto ClientUsage;
InvalidURL:
this.Form.Error("Client: Invalid URL");
ClientUsage:
this.Form.Error("Client usage: Client username client_URL script_file");
}
private void HandleServerCommand(string[] args)
{
if (args.Length != 1 + 4)
{
this.Form.Error("Server: wrong number of arguments");
goto ServerUsage;
}
string id = args[1];
string url = args[2];
if (!url.StartsWith("http://"))
{
goto InvalidURL;
}
string[] urlElements = url.Replace("http://", "").Split(":", StringSplitOptions.RemoveEmptyEntries);
if (urlElements.Length != 2)
{
this.Form.Error(urlElements.ToString());
goto InvalidURL;
}
string host = urlElements[0];
if (!int.TryParse(urlElements[1], out int port))
{
goto InvalidPort;
}
if (port < 1024 || 65535 < port)
{
goto InvalidPort;
}
if (!int.TryParse(args[3], out int min_delay) ||
!int.TryParse(args[4], out int max_delay) ||
min_delay < 0 ||
max_delay < 0)
{
this.Form.Error("Server: delay arguments must be non negative numbers");
return;
}
if (min_delay > max_delay)
{
this.Form.Error("Server: max_delay must be greater or equal than min_delay");
return;
}
if (Servers.ContainsKey(id))
{
this.Form.Error($"Server: server {id} already exists");
return;
}
PCSGrpcService.PCSGrpcServiceClient grpcClient;
if (PCSClients.ContainsKey(host))
{
grpcClient = PCSClients[host];
}
else
{
string address = "http://" + host + ":" + PCS_PORT;
GrpcChannel channel = GrpcChannel.ForAddress(address);
try
{
grpcClient = new PCSGrpcService.PCSGrpcServiceClient(channel);
PCSClients[host] = grpcClient;
}
catch (Exception)
{
this.Form.Error("Server: unable to connect to PCS");
return;
}
}
if (grpcClient.LaunchServer(new LaunchServerRequest {
Id = id, Port = port, MinDelay = min_delay, MaxDelay = max_delay
}).Ok)
{
this.Form.Log("Server: successfully launched server at " + host + ":" + port);
}
else
{
this.Form.Error("Server: failed launching server");
}
// register server
ServerInfo server = new ServerInfo(id, url);
Servers[id] = server;
server.Init();
return;
InvalidPort:
this.Form.Error("Server: Invalid port number");
goto ServerUsage;
InvalidURL:
this.Form.Error("Server: Invalid URL");
goto ServerUsage;
ServerUsage:
this.Form.Error("Server usage: Server server_id URL min_delay max_delay");
}
