Represents a server-side connected client, including TCP and UDP communication handlers, user state, and connection security such as HMAC and authentication tokens. More...

Classes
class	TCP
	Class for managing TCP connection. More...
class	UDP
	Class for managing UDP connection. More...

Public Member Functions
string	GetToken ()
	Gets the client's current authentication token.
	ServerSideClient (int newClientID)
	Initializes a new client instance and sets up its TCP and UDP handlers.
void	Disconnect ()
	Disconnects the client from the server if not already disconnected. Cleans up the user object and resets the client slot.
void	DisconnectRequest ()
	Handles a user-initiated disconnect request and broadcasts it to others.
void	SendLatencyReply (int pcktId)
	Sends a latency reply (pong) to the client.
void	ResendMessage (string message)
	Re-sends a private message back to the same client.
void	ResendToAll (string Message)
	Re-sends a message to all connected clients except the sender.
void	UpdateTransform (Vector3 pos, Quaternion rot)
	Sends updated transform (position and rotation) to all clients.
void	UpdateAnimation (int type, string name, float value)
	Sends updated animation parameters to all clients.
void	SendUserToAction (string username)
	Initializes a new user and synchronizes it with all other clients. Sends spawn info to self and others.

Static Public Member Functions
static string	GenerateRandomToken (int length=32)
	Generates a random alphanumeric authentication token.
static void	ConsoleLog (string message)

Public Attributes
int	clientID
	Unique client ID on the server.
string	clientUsername
	Username of the connected client.
TCP	tcp
	TCP connection handler.
UDP	udp
	UDP connection handler.
ServerSideClientInstance	user
	Instance of the client's representation in the game world.
DefaultNetworkSettings	DefaultSettings

Static Public Attributes
static int	BufferSize = 4096
	Size of the data buffer used for transmission.

Private Member Functions
void	SetToken ()
	Assigns a new authentication token to the client.

Static Private Member Functions
static byte[]	GenerateHmacKey ()
	Generates a secure random 256-bit HMAC key.

Private Attributes
byte[]	hmacKey
string	auth_token
bool	isDisconnected = true

Detailed Description

Represents a server-side connected client, including TCP and UDP communication handlers, user state, and connection security such as HMAC and authentication tokens.

Definition at line 18 of file ServerSideClient.cs.

Constructor & Destructor Documentation

◆ ServerSideClient()

ServerSideClient.ServerSideClient ( int newClientID )

Initializes a new client instance and sets up its TCP and UDP handlers.

Definition at line 76 of file ServerSideClient.cs.

    {
        isDisconnected = false;
        clientID = newClientID;
        DefaultSettings = ServerLogic.GetSettings();
        tcp = new TCP(clientID);
        udp = new UDP(clientID);
 
    }

Member Function Documentation

◆ ConsoleLog()

void ServerSideClient.ConsoleLog ( string message )

static

Definition at line 429 of file ServerSideClient.cs.

    {
        Console.WriteLine(message + "\n");
    }

◆ Disconnect()

void ServerSideClient.Disconnect ( )

Disconnects the client from the server if not already disconnected. Cleans up the user object and resets the client slot.

Definition at line 89 of file ServerSideClient.cs.

    {
        if (isDisconnected)
        {
            return;
        }
        if (tcp != null && tcp.Socket != null)
        {
            ConsoleLog($"{tcp.Socket.Client.RemoteEndPoint} [{clientUsername}] has disconnected from the Server");
            ServerSendHandler.DisconnectedUser(clientID);
            tcp.Disconnect();
            udp.Disconnect();
            ThreadsController.StartOnMainThread(() =>
            {
                UnityEngine.Object.Destroy(user.gameObject);
                user = null;
                
            });
            isDisconnected = true;
            ServerLogic.clientsList[clientID] = new ServerSideClient(clientID);
        }
        else
        {
            ConsoleLog($"Client {clientUsername} has already been disconnected.");
            return;
        }
    }

◆ DisconnectRequest()

void ServerSideClient.DisconnectRequest ( )

Handles a user-initiated disconnect request and broadcasts it to others.

Definition at line 119 of file ServerSideClient.cs.

    {
        if (isDisconnected)
        {
            ConsoleLog($"[Disconnect] Already disconnected {clientUsername}");
            return;
        }
        ConsoleLog($"{tcp.Socket.Client.RemoteEndPoint} [{clientUsername}] wants to disconnect");
        string message = "Server message: " + clientUsername + " has disconnected";
        ServerSendHandler.SendMessageAll(clientID, message);
        Disconnect();
    }

◆ GenerateHmacKey()

byte[] ServerSideClient.GenerateHmacKey ( )

staticprivate

Generates a secure random 256-bit HMAC key.

Definition at line 197 of file ServerSideClient.cs.

    {
        using (var rng = new System.Security.Cryptography.RNGCryptoServiceProvider())
        {
            byte[] key = new byte[32]; // 256-bitov� HMAC k���
            rng.GetBytes(key);
            return key;
        }
    }

◆ GenerateRandomToken()

string ServerSideClient.GenerateRandomToken ( int length = 32 )

static

Generates a random alphanumeric authentication token.

Definition at line 46 of file ServerSideClient.cs.

    {
        const string validChars = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789"; 
        byte[] randomBytes = new byte[length];
        using (var rng = RandomNumberGenerator.Create())
        {
            rng.GetBytes(randomBytes);
        }
 
        char[] chars = new char[length];
        for (int i = 0; i < length; i++)
        {
            chars[i] = validChars[randomBytes[i] % validChars.Length];
        }
        return new string(chars);
    }

◆ GetToken()

string ServerSideClient.GetToken ( )

Gets the client's current authentication token.

Definition at line 68 of file ServerSideClient.cs.

    {
        return auth_token;
    }

◆ ResendMessage()

void ServerSideClient.ResendMessage ( string message )

Re-sends a private message back to the same client.

Definition at line 141 of file ServerSideClient.cs.

    {
        ServerSendHandler.SendMessage(clientID, message);
    }

◆ ResendToAll()

void ServerSideClient.ResendToAll ( string Message )

Re-sends a message to all connected clients except the sender.

Definition at line 148 of file ServerSideClient.cs.

    {
        ServerSendHandler.SendMessageAll(clientID, Message);
    }

◆ SendLatencyReply()

void ServerSideClient.SendLatencyReply ( int pcktId )

Sends a latency reply (pong) to the client.

Definition at line 134 of file ServerSideClient.cs.

    {
        ServerSendHandler.LatencyToUser(clientID, pcktId);
    }

◆ SendUserToAction()

void ServerSideClient.SendUserToAction ( string username )

Initializes a new user and synchronizes it with all other clients. Sends spawn info to self and others.

Definition at line 170 of file ServerSideClient.cs.

    {
        user = NetworkServer.instance.NewUser();
        user.UserInitialization(clientID, username, 1);
        foreach (ServerSideClient client in ServerLogic.clientsList.Values)
        {
            if (client.user != null)
            {
                if (client.clientID != clientID)
                {
                    ServerSendHandler.SpawnUser(clientID, client.user);
                }
            }
        }
        foreach (ServerSideClient client in ServerLogic.clientsList.Values)
        {
            if (client.user != null)
            {
                ServerSendHandler.SpawnUser(client.clientID, user);
            }   
        }
        string message = "Server message: " + username + " has connected";
        ServerSendHandler.SendMessageAll(clientID, message);
    }

◆ SetToken()

void ServerSideClient.SetToken ( )

private

Assigns a new authentication token to the client.

Definition at line 63 of file ServerSideClient.cs.

    {
        auth_token = GenerateRandomToken();
    }

◆ UpdateAnimation()

void ServerSideClient.UpdateAnimation	(	int	type,
		string	name,
		float	value )

Sends updated animation parameters to all clients.

Definition at line 162 of file ServerSideClient.cs.

    {
        ServerSendHandler.SendUpdatedAnimation(clientID, type, name, value);
    }

◆ UpdateTransform()

void ServerSideClient.UpdateTransform	(	Vector3	pos,
		Quaternion	rot )

Sends updated transform (position and rotation) to all clients.

Definition at line 155 of file ServerSideClient.cs.

    {
        ServerSendHandler.SendUpdatedTransform(clientID, pos, rot);
    }

Member Data Documentation

◆ auth_token

string ServerSideClient.auth_token

private

Definition at line 39 of file ServerSideClient.cs.

◆ BufferSize

int ServerSideClient.BufferSize = 4096

static

Size of the data buffer used for transmission.

Definition at line 33 of file ServerSideClient.cs.

◆ clientID

int ServerSideClient.clientID

Unique client ID on the server.

Definition at line 21 of file ServerSideClient.cs.

◆ clientUsername

string ServerSideClient.clientUsername

Username of the connected client.

Definition at line 24 of file ServerSideClient.cs.

◆ DefaultSettings

DefaultNetworkSettings ServerSideClient.DefaultSettings

Definition at line 40 of file ServerSideClient.cs.

◆ hmacKey

byte [] ServerSideClient.hmacKey

private

Definition at line 38 of file ServerSideClient.cs.

◆ isDisconnected

bool ServerSideClient.isDisconnected = true

private

Definition at line 41 of file ServerSideClient.cs.

◆ tcp

TCP ServerSideClient.tcp

TCP connection handler.

Definition at line 27 of file ServerSideClient.cs.

◆ udp

UDP ServerSideClient.udp

UDP connection handler.

Definition at line 30 of file ServerSideClient.cs.

◆ user

ServerSideClientInstance ServerSideClient.user

Instance of the client's representation in the game world.

Definition at line 36 of file ServerSideClient.cs.

Classes

Public Member Functions

Static Public Member Functions

Public Attributes

Static Public Attributes

Private Member Functions

Static Private Member Functions

Private Attributes

Detailed Description

Constructor & Destructor Documentation

◆ ServerSideClient()

Member Function Documentation

◆ ConsoleLog()

◆ Disconnect()

◆ DisconnectRequest()

◆ GenerateHmacKey()

◆ GenerateRandomToken()

◆ GetToken()

◆ ResendMessage()

◆ ResendToAll()

◆ SendLatencyReply()

◆ SendUserToAction()

◆ SetToken()

◆ UpdateAnimation()

◆ UpdateTransform()

Member Data Documentation

◆ auth_token

◆ BufferSize

◆ clientID

◆ clientUsername

◆ DefaultSettings

◆ hmacKey

◆ isDisconnected

◆ tcp

◆ udp

◆ user