public async Task LoginAsync(UserStatus initialStatus = UserStatus.Online)
{
await @lock.WriterLockAsync();
try
{
if (IsLoggedIn)
return;
IConnection connection = null;
ConnectionStream stream = null;
CommandReader reader = null;
CommandWriter writer = null;
ResponseTracker responseTracker = null;
IConnectableObservable<Command> commands = null;
IDisposable commandsDisposable = null;
int transferCount = 0;
SocketEndPoint endPoint = SocketEndPoint.Parse("messenger.hotmail.com:1863");
string authTicket = null;
while (authTicket == null)
{
connection = new SocketConnection();
await connection.ConnectAsync(endPoint);
stream = new ConnectionStream(connection);
writer = new CommandWriter(stream);
reader = new CommandReader(stream, new Dictionary<string, Type> {
{ "VER", typeof(VersionCommand) },
{ "CVR", typeof(ClientVersionCommand) },
{ "USR", typeof(AuthenticateCommand) },
{ "XFR", typeof(TransferCommand) },
{ "SYN", typeof(SynchronizeCommand) },
{ "SBS", typeof(SbsCommand) },
{ "MSG", typeof(MessageCommand) },
{ "LST", typeof(UserCommand) },
{ "LSG", typeof(GroupCommand) },
{ "BPR", typeof(UserPropertyCommand) },
{ "BLP", typeof(PrivacySettingCommand) },
{ "GTC", typeof(PrivacySettingCommand) },
{ "CHG", typeof(ChangeStatusCommand) },
{ "UBX", typeof(BroadcastCommand) },
{ "PRP", typeof(LocalPropertyCommand) },
{ "NLN", typeof(UserOnlineCommand) },
{ "ILN", typeof(InitialUserOnlineCommand) },
{ "FLN", typeof(UserOfflineCommand) },
{ "UUX", typeof(SendBroadcastCommand) },
{ "NOT", typeof(NotificationCommand) },
{ "QNG", typeof(PingCommand) },
{ "CHL", typeof(ChallengeCommand) },
{ "ADC", typeof(AddContactCommand) },
{ "REM", typeof(RemoveContactCommand) },
{ "ADG", typeof(AddGroupCommand) },
{ "RMG", typeof(RemoveGroupCommand) },
{ "REG", typeof(RenameGroupCommand) },
{ "QRY", typeof(AcceptChallengeCommand) },
{ "RNG", typeof(RingCommand) },
{ "SBP", typeof(ChangeUserPropertyCommand) },
{ "IMS", typeof(EnableIMCommand) },
});
commands = reader.GetReadObservable().Publish();
responseTracker = new ResponseTracker(writer, commands);
commandsDisposable = commands.Connect();
var versionCommand = new VersionCommand("MSNP12");
var versionResponse = await responseTracker.GetResponseAsync<VersionCommand>(versionCommand, defaultTimeout);
if (versionResponse.Versions.Length == 0)
throw new ProtocolNotAcceptedException();
var clientVersionCommand = new ClientVersionCommand
{
LocaleId = "0x0409",
OsType = "winnt",
OsVersion = "5.0",
Architecture = "1386",
LibraryName = "MSMSGS",
ClientVersion = "5.0.0482",
ClientName = "WindowsMessenger",
LoginName = credentials.LoginName,
};
await responseTracker.GetResponseAsync<ClientVersionCommand>(clientVersionCommand, defaultTimeout);
var userCommand = new AuthenticateCommand("TWN", "I", credentials.LoginName);
var userResponse = await responseTracker.GetResponseAsync(userCommand, new Type[] { typeof(AuthenticateCommand), typeof(TransferCommand) }, defaultTimeout);
if (userResponse is AuthenticateCommand)
{
authTicket = (userResponse as AuthenticateCommand).Argument;
}
else if (userResponse is TransferCommand)
{
TransferCommand transferResponse = userResponse as TransferCommand;
if (transferCount > 3)
throw new InvalidOperationException("The maximum number of redirects has been reached.");
transferCount++;
endPoint = SocketEndPoint.Parse(transferResponse.Host);
commandsDisposable.Dispose();
reader.Close();
writer.Close();
connection.Dispose();
}
}
PassportAuthentication auth = new PassportAuthentication();
string authToken = await auth.GetToken(credentials.LoginName, credentials.Password, authTicket);
var authCommand = new AuthenticateCommand("TWN", "S", authToken);
var authResponse = await responseTracker.GetResponseAsync<AuthenticateCommand>(authCommand, defaultTimeout);
var synCommand = new SynchronizeCommand(syncTimeStamp1 ?? "0", syncTimeStamp2 ?? "0");
var synResponse = await responseTracker.GetResponseAsync<SynchronizeCommand>(synCommand, defaultTimeout);
IDisposable syncCommandsSubscription = null;
List<Command> syncCommands = null;
if (synResponse.TimeStamp1 != syncTimeStamp1 || synResponse.TimeStamp2 != syncTimeStamp2)
{
syncCommands = new List<Command>();
Type[] syncTypes = new Type[] {
typeof(MessageCommand),
typeof(UserCommand),
typeof(GroupCommand),
typeof(LocalPropertyCommand),
typeof(PrivacySettingCommand),
};
syncCommandsSubscription = commands
.Where(c => syncTypes.Contains(c.GetType()))
.Catch(Observable.Empty<Command>())
.Subscribe(c => syncCommands.Add(c));
//if we're expecting users/groups, wait for them before we proceed
if (synResponse.UserCount + synResponse.GroupCount > 0)
{
await commands
.Where(c => c is UserCommand || c is GroupCommand)
.Take(synResponse.UserCount + synResponse.GroupCount)
.Timeout(defaultTimeout);
}
}
UserCapabilities capabilities = 0;
MSNObject displayPicture = MSNObject.Empty;
if (LocalUser != null)
{
capabilities = LocalUser.Capabilities;
displayPicture = LocalUser.DisplayPicture;
}
Command changeStatusCommand = new ChangeStatusCommand(User.StatusToString(UserStatus.Online), (uint)capabilities, displayPicture != MSNObject.Empty ? displayPicture.ToString() : "0");
await responseTracker.GetResponseAsync(changeStatusCommand, defaultTimeout);
if (syncCommandsSubscription != null)
syncCommandsSubscription.Dispose();
this.writer = writer;
this.reader = reader;
this.stream = stream;
this.connection = connection;
this.responseTracker = responseTracker;
this.commands = commands;
this.commandsDisposable = commandsDisposable;
if (LocalUser == null)
{
LocalUser = new LocalUser(this, credentials.LoginName);
userCache.Add(credentials.LoginName, new WeakReference(LocalUser));
}
LocalUser.Status = initialStatus;
SyncEvents syncEvents = null;
if (syncCommands != null)
{
syncTimeStamp1 = synResponse.TimeStamp1;
syncTimeStamp2 = synResponse.TimeStamp2;
syncEvents = ProcessSyncCommands(syncCommands);
}
var commandsSafe = commands
.Catch<Command, ConnectionErrorException>(tx => Observable.Empty<Command>());
commandsSafe.OfType<MessageCommand>().Subscribe(cmd => HandleMessages(cmd, connection));
commandsSafe.OfType<RingCommand>().Subscribe(cmd => HandleRings(cmd, connection));
commandsSafe.OfType<BroadcastCommand>().Subscribe(cmd => HandleBroadcasts(cmd, connection));
commandsSafe.OfType<NotificationCommand>().Subscribe(cmd => HandleNotifications(cmd, connection));
commandsSafe.OfType<AddContactCommand>().Subscribe(cmd => HandleNewUsers(cmd, connection));
commandsSafe.OfType<OutCommand>().Subscribe(cmd => HandleOut(cmd, connection));
commandsSafe.OfType<ChallengeCommand>().Subscribe(cmd => HandleChallenges(cmd, connection));
commandsSafe.OfType<UserOnlineCommand>().Subscribe(cmd => HandleOnlineUsers(cmd, connection));
commandsSafe.OfType<InitialUserOnlineCommand>().Subscribe(cmd => HandleOnlineUsers(cmd, connection));
commandsSafe.OfType<UserOfflineCommand>().Subscribe(cmd => HandleOfflineUsers(cmd, connection));
connection.Error += connection_Error;
IsLoggedIn = true;
OnLoggedIn();
OnUserStatusChanged(new UserStatusEventArgs(LocalUser, initialStatus, UserStatus.Offline, true));
if (syncEvents != null)
RaiseSyncEvents(syncEvents);
}
finally
{
@lock.WriterRelease();
}
}