/// <summary>
/// Loads an account from the mysql database using the given character details.
/// </summary>
/// <param name="details">The details used to load the account.</param>
/// <returns>Returns the account load result.</returns>
public AccountLoadResult Load(Details details, LoginConnectionType loginType)
{
AccountLoadResult result = new AccountLoadResult();
if (GameEngine.World.SystemUpdate)
{
result.Character = new Character(details, 0);
result.ReturnCode = LoginReturnCode.SystemUpdate;
}
try
{
DataRow data = null;
using (SqlDatabaseClient client = GameServer.Database.GetClient())
{
/*
* Checks if the character exists in the database. It also
* checks if the given password matches the stored password.
*/
client.AddParameter("username", details.Username);
client.AddParameter("password", details.Password);
data = client.ReadDataRow("SELECT * FROM characters LEFT JOIN (character_preferences) ON (characters.id = character_preferences.master_id) WHERE username = @username AND password = @password LIMIT 1;");
}
if (data != null) // Meaning the character exists, and the password is correct.
{
result.Character = new Character(details, (uint)data[0]);
// If a character is offensive, set the proper penalties.
OffenceType offence = (OffenceType)GameEngine.World.OffenseManager.GetOffence(result.Character.MasterId);
if (offence == OffenceType.Banned) // If the character is banned, flag and end this request.
{
result.ReturnCode = LoginReturnCode.AccountDisabled;
}
if (offence == OffenceType.Muted) // If the character is muted, we will mute this character.
{
result.Character.Muted = true;
}
/*
* Only check if it's a new connection, as reconnections try
* connnecting to the server before the older session is removed,
* so we must ignore whether or not the character is online.
*/
if (loginType != LoginConnectionType.Reconnection && (bool)data[5])
{
result.ReturnCode = LoginReturnCode.AlreadyOnline;
}
/*
* We only want to assign the character details loaded from
* the database if the player has passed though security.
*/
if (result.ReturnCode == LoginReturnCode.Successful)
{
// Core info.
result.Character.ClientRights = (ClientRights)data[3];
result.Character.ServerRights = (ServerRights)data[4];
result.Active = (bool)data[6];
// Appearance.
result.Character.Appearance.Gender = (Gender)data[14];
result.Character.Appearance.Head = (short)data[15];
result.Character.Appearance.Torso = (short)data[16];
result.Character.Appearance.Arms = (short)data[17];
result.Character.Appearance.Wrist = (short)data[18];
result.Character.Appearance.Legs = (short)data[19];
result.Character.Appearance.Feet = (short)data[20];
result.Character.Appearance.Beard = (short)data[21];
result.Character.Appearance.HairColor = (byte)data[22];
result.Character.Appearance.TorsoColor = (byte)data[23];
result.Character.Appearance.LegColor = (byte)data[24];
result.Character.Appearance.FeetColor = (byte)data[25];
result.Character.Appearance.SkinColor = (byte)data[26];
// Location.
result.Character.Location = Location.Create((short)data[27], (short)data[28], (byte)data[29]);
// Energy.
result.Character.WalkingQueue.RunEnergy = (byte)data[30];
// Containers.
if (data[31] is string)
{
result.Character.Inventory.Deserialize((string)data[31]);
}
if (data[32] is string)
{
result.Character.Equipment.Deserialize((string)data[32]);
}
if (data[33] is string)
{
result.Character.Bank.Deserialize((string)data[33]);
}
// Friends and ignores
if (data[34] is string)
{
string friends = (string)data[34];
if (friends != string.Empty)
{
result.Character.Contacts.DeserializeFriends(friends);
}
}
if (data[35] is string)
{
string ignores = (string)data[35];
if (ignores != string.Empty)
{
result.Character.Contacts.DeserializeIgnores((string)data[35]);
}
}
// Preferences.
result.Character.Preferences.SingleMouse = (bool)data[37];
result.Character.Preferences.DisableChatEffects = (bool)data[38];
result.Character.Preferences.SplitChat = (bool)data[39];
result.Character.Preferences.AcceptAid = (bool)data[40];
}
}
else // User doesn't exist or password is wrong.
{
result.Character = new Character(details, 0);
result.ReturnCode = LoginReturnCode.WrongPassword;
}
}
catch (Exception ex)
{
Program.Logger.WriteException(ex);
result.Character = new Character(details, 0);
result.ReturnCode = LoginReturnCode.BadSession;
}
return(result);
}
/// <summary>
/// Loads an account from the database.
/// </summary>
/// <param name="details">The character details to look at when loading.</param>
public void LoadAccount(Details details, LoginConnectionType loginType)
{
StringBuilder sbQuery = new StringBuilder();
AccountLoadResult result = this.accountLoader.Load(details, loginType); // Try to load the account.
GenericPacketComposer composer = new GenericPacketComposer(); // The packet going to be sent.
// Try registering the user if return code is successful so far.
if (result.ReturnCode == LoginReturnCode.Successful)
{
// The world is full.
if (!Register(result.Character))
{
result.ReturnCode = LoginReturnCode.WorldFull;
}
}
composer.AppendByte((byte)result.ReturnCode);
// We only need to send this if the login was successful.
if (result.ReturnCode == LoginReturnCode.Successful)
{
composer.AppendByte((byte)result.Character.ClientRights);
composer.AppendByte((byte)0);
composer.AppendByte((byte)0);
composer.AppendByte((byte)0);
composer.AppendByte((byte)1);
composer.AppendShort((short)result.Character.Index);
composer.AppendByte((byte)1);
if (this.logSessions)
{
sbQuery.Append("UPDATE characters SET last_ip=@ip, last_signin=NOW() WHERE id = @id;");
}
}
if (this.logAttempts)
{
sbQuery.Append("INSERT INTO login_attempts (username,date,ip,attempt) VALUES (@name, NOW(), @ip, @attempt);");
}
if (!result.Active)
{
sbQuery.Append("UPDATE characters SET active = '1' WHERE id = @id;");
}
if (sbQuery.Length != 0)
{
// Log the user's login attempt. This is useful for tracking hacking, ddos, etc.
using (SqlDatabaseClient client = GameServer.Database.GetClient())
{
client.AddParameter("id", result.Character.MasterId);
client.AddParameter("name", details.Username);
client.AddParameter("ip", details.Session.Connection.IPAddress);
client.AddParameter("attempt", result.ReturnCode.ToString());
client.ExecuteUpdate(sbQuery.ToString());
}
}
// Send results to the client.
result.Character.Session.SendData(composer.SerializeBuffer());
// We can now welcome the player and send nessesary packets.
if (result.ReturnCode == LoginReturnCode.Successful)
{
result.Character.Session.StartConnection();
if (!result.Active)
{
result.Character.Preferences.Add("just_started", true);
}
Frames.SendLoginWelcome(result.Character);
result.Character.Contacts.OnLogin();
}
Program.Logger.WriteDebug(result.Character.Name + " returned " + result.ReturnCode + " at login attempt.");
}
/// <summary>
/// Processes the login verification.
/// </summary>
/// <param name="request">The request to process and verify.</param>
/// <param name="type">The login connection type.</param>
public static void Process(LoginRequest request, LoginConnectionType type)
{
short packetSize = -1;
if (request.Buffer.RemainingAmount >= 2)
{
packetSize = request.Buffer.ReadShort(); // The size will vary depending on user's inputted username and password.
}
else
{
return;
}
if (request.Buffer.RemainingAmount >= packetSize)
{
Packet p = new Packet(request.Buffer.GetRemainingData());
int encryptedPacketSize = packetSize - packetSize - (36 + 1 + 1 + 2); // Shouldn't be under 0.
int clientVersion = p.ReadInt();
if (clientVersion != 508) // Check to make sure the client is 508.
{
request.LoginStage = -3;
return;
}
// Client preferences.
bool lowMemory = p.ReadByte() == 1 ? true : false;
bool hd = p.ReadByte() == 1 ? true : false;
bool resized = p.ReadByte() == 1 ? true : false;
short width = p.ReadShort();
short height = p.ReadShort();
p.Skip(141);
int tmpEncryptPacketSize = p.ReadByte();
if (tmpEncryptPacketSize != 10)
{
int encryptPacketId = p.ReadByte();
}
// Session data.
long clientKey = p.ReadLong(); // The client's session key.
long serverKey = p.ReadLong(); // The client's server session key.
// Hash verification.
long longName = p.ReadLong();
int hash = (int)(31 & longName >> 16); // Verify client session hash.
if (hash != request.NameHash) // Possibly a bot attack.
{
request.LoginStage = -3;
return;
}
// User data.
string username = longName.LongToString();
string password = Hash.GetHash(username + Hash.GetHash(
p.ReadString(), HashType.SHA1), HashType.SHA1);
// Try to load the account with the given details.
Details details = new Details(request.Connection, username, password, hd, resized, clientKey, serverKey);
Program.Logger.WriteDebug("Login request: " + details.ToString());
GameEngine.World.CharacterManager.LoadAccount(details, type);
request.Finished = true;
}
return;
}
