void OnMessageReceived(object sender, SocketAsyncEventArgs e)
{
if (e.SocketError != SocketError.Success)
{
Disconnect();
return;
}
if (e.BytesTransferred > 0)
{
ChatMessage chatMessage = new ChatMessage(e.Buffer, e.BytesTransferred);
if (chatMessage.Valid)
{
Console.WriteLine(RemoteEndPoint.Address.ToString() + ", " + attachedAccount.Username + ", Receive: " +
Enum.GetName(typeof(ChatMessageSubjects), chatMessage.Subject) + ";" + chatMessage.Text + "\n");
if (MessageReceived != null)
MessageReceived(this, chatMessage);
}
else
{
Console.WriteLine(RemoteEndPoint.Address.ToString() + ", " + attachedAccount.Username + ", FailReceive: " + chatMessage.Error);
}
}
else
{
Console.WriteLine("Received a message with 0 bytes");
Disconnect();
return;
}
e.SetBuffer(new byte[1000], 0, 1000);
if (!socket.ReceiveAsync(e))
{
Disconnect();
}
}
static void Program_MessageReceived(Connection sender, ChatMessage chatMessage)
{
if (chatMessage.Subject == ChatMessageSubjects.Message)
{
if (!mutedAccounts.Exists(new Predicate<Account>((acc) => acc.Username == sender.attachedAccount.Username)))
{
foreach (Connection connection in connections)
{
if (connection != sender && connection.attachedAccount.Username != "")
{
connection.Send(Enum.GetName(typeof(AccountTypes), sender.attachedAccount.AccountType) + ";" +
sender.attachedAccount.Username + ";Message;" + chatMessage.Text, ChatMessageSubjects.Message);
}
}
}
else
{
sender.Send("Fail;CheckPrivilege", ChatMessageSubjects.AdminTool);
}
}
else if (chatMessage.Subject == ChatMessageSubjects.Login)
{
string username = chatMessage.Text.Split(';')[0];
string password = chatMessage.Text.Split(';')[1];
foreach (Connection connection in connections)
{
if (connection.attachedAccount.Username == username)
{
sender.Send("Fail;LoggedIn", ChatMessageSubjects.Login);
return;
}
}
foreach (Account account in accounts)
{
if (account.Username == username)
{
foreach (Account bannedAccount in bannedAccounts)
{
if (bannedAccount.Username == username)
{
sender.Send("Fail;Banned", ChatMessageSubjects.Login);
return;
}
}
if (account.Password == password)
{
sender.attachedAccount = account;
sender.Send("Success", ChatMessageSubjects.Login);
SendOnlineList();
}
else
{
sender.Send("Fail;WrongPassword", ChatMessageSubjects.Login);
}
return;
}
}
sender.Send("Fail;NonExistent", ChatMessageSubjects.Login);
}
else if (chatMessage.Subject == ChatMessageSubjects.Register)
{
string username = chatMessage.Text.Split(';')[0];
string password = chatMessage.Text.Split(';')[1];
foreach (char ch in username)
{
if (!char.IsLetterOrDigit(ch))
{
sender.Send("Fail;Syntax;Username", ChatMessageSubjects.Register);
return;
}
}
foreach (char ch in password)
{
if (!char.IsLetterOrDigit(ch))
{
sender.Send("Fail;Syntax;Password", ChatMessageSubjects.Register);
return;
}
}
foreach (Account account in accounts)
{
if (account.Username == username)
{
sender.Send("Fail;AlreadyExists", ChatMessageSubjects.Register);
return;
}
}
accounts.Add(new Account(username, password, AccountTypes.User));
sender.Send("Success", ChatMessageSubjects.Register);
accounts.SaveToFile("accs.dat");
}
else if (chatMessage.Subject == ChatMessageSubjects.UserTool)
{
if (sender.attachedAccount.Username != "")
{
if (chatMessage.Text.Split(';')[0] == "ChangePassword")
{
string oldPassword = chatMessage.Text.Split(';')[1];
string newPassword = chatMessage.Text.Split(';')[2];
if (oldPassword == sender.attachedAccount.Password)
{
if (newPassword != "")
{
foreach (char ch in newPassword)
{
if (!char.IsLetterOrDigit(ch))
{
sender.Send("ChangePassword;Fail;Syntax", ChatMessageSubjects.UserTool);
return;
}
}
sender.attachedAccount = new Account(sender.attachedAccount.Username, newPassword, sender.attachedAccount.AccountType);
sender.Send("ChangePassword;Success", ChatMessageSubjects.UserTool);
sender.attachedAccount.Password = newPassword;
accounts.RemoveAll(new Predicate<Account>((acc) => acc.Username == sender.attachedAccount.Username));
accounts.Add(sender.attachedAccount);
accounts.SaveToFile("accs.dat");
}
else
{
sender.Send("ChangePassword;Fail;Syntax", ChatMessageSubjects.UserTool);
}
}
else
{
sender.Send("ChangePassword;Fail;PasswordMismatch", ChatMessageSubjects.UserTool);
}
}
}
}
else if (chatMessage.Subject == ChatMessageSubjects.AdminTool)
{
if (sender.attachedAccount.Username != "" && sender.attachedAccount.AccountType == AccountTypes.Admin)
{
if (chatMessage.Text.Split(';')[0] == "Kick")
{
string username = chatMessage.Text.Split(';')[1];
foreach (Connection connection in connections.ToArray())
{
if (connection.attachedAccount.Username == username)
{
connection.Disconnect();
break;
}
}
}
else if (chatMessage.Text.Split(';')[0] == "Ban")
{
string username = chatMessage.Text.Split(';')[1];
foreach (Account account in accounts.ToArray())
{
if (account.Username == username)
{
if (!bannedAccounts.Exists(new Predicate<Account>((acc) => acc.Username == username)))
{
bannedAccounts.Add(account);
bannedAccounts.SaveToFile("bans.dat");
foreach (Connection connection in connections)
{
if (connection.attachedAccount.Username == username)
{
connection.Disconnect();
break;
}
}
sender.Send("Ban;Success;" + username, ChatMessageSubjects.AdminTool);
return;
}
sender.Send("Ban;Fail;AlreadyBanned", ChatMessageSubjects.AdminTool);
return;
}
}
sender.Send("Ban;Fail;NonExistent", ChatMessageSubjects.AdminTool);
}
else if (chatMessage.Text.Split(';')[0] == "Unban")
{
string username = chatMessage.Text.Split(';')[1];
foreach (Account account in bannedAccounts.ToArray())
{
if (account.Username == username)
{
bannedAccounts.Remove(account);
bannedAccounts.SaveToFile("bans.dat");
sender.Send("Unban;Success;" + username, ChatMessageSubjects.AdminTool);
return;
}
}
sender.Send("Unban;Fail;NonExistent", ChatMessageSubjects.AdminTool);
}
else if (chatMessage.Text.Split(';')[0] == "Mute")
{
string username = chatMessage.Text.Split(';')[1];
foreach (Account account in accounts.ToArray())
{
if (account.Username == username)
{
if (!mutedAccounts.Exists(new Predicate<Account>((acc) => acc.Username == username)))
{
mutedAccounts.Add(account);
mutedAccounts.SaveToFile("muted.dat");
}
sender.Send("Mute;Success;" + username, ChatMessageSubjects.AdminTool);
return;
}
}
}
else if (chatMessage.Text.Split(';')[0] == "Unmute")
{
string username = chatMessage.Text.Split(';')[1];
foreach (Account account in mutedAccounts.ToArray())
{
if (account.Username == username)
{
mutedAccounts.Remove(account);
mutedAccounts.SaveToFile("muted.dat");
sender.Send("Unmute;Success;" + username, ChatMessageSubjects.AdminTool);
return;
}
}
sender.Send("Unban;Fail;NonExistent", ChatMessageSubjects.AdminTool);
}
else if (chatMessage.Text.Split(';')[0] == "ChangeUsername")
{
}
else if (chatMessage.Text.Split(';')[0] == "ChangePassword")
{
}
else if (chatMessage.Text.Split(';')[0] == "RemoveAccount")
{
string username = chatMessage.Text.Split(';')[1];
foreach (Account account in accounts.ToArray())
{
if (account.Username == username)
{
accounts.RemoveAll(new Predicate<Account>((acc) => acc.Username == username));
accounts.SaveToFile("accs.dat");
bannedAccounts.RemoveAll(new Predicate<Account>((acc) => acc.Username == username));
bannedAccounts.SaveToFile("bans.dat");
mutedAccounts.RemoveAll(new Predicate<Account>((acc) => acc.Username == username));
mutedAccounts.SaveToFile("muted.dat");
}
}
}
else if (chatMessage.Text.Split(';')[0] == "AddAccount")
{
}
}
else
{
sender.Send("Fail;CheckPrivilege", ChatMessageSubjects.AdminTool);
}
}
else if (chatMessage.Subject == ChatMessageSubjects.None)
{
}
}
public void Send(string innerText, ChatMessageSubjects subject)
{
ChatMessage chatMessage = new ChatMessage(innerText, subject);
if (chatMessage.Valid)
{
Console.WriteLine(RemoteEndPoint.Address.ToString() + ", " + attachedAccount.Username + ", Send: " +
Enum.GetName(typeof(ChatMessageSubjects), subject) + ";" + innerText);
try
{
socket.Send(chatMessage.Data);
}
catch
{
Disconnect();
}
}
else
{
Console.WriteLine(RemoteEndPoint.Address.ToString() + ", " + attachedAccount.Username + ", FailSend: " +
Enum.GetName(typeof(ChatMessageSubjects), subject) + ";" + innerText);
}
}