public void Send(OSCARUdp self, ref FLAPHeader f)
{
var tlvs = new TLVChain(2)
{
new TLV { TypeID = SvcLayer.TLV_TYPE, Value = new byte[1] { SvcLayer.TYPE_CONNECT_REQST }},
new TLV{TypeID = SvcLayer.TLV_CONNECT_HASH, Value = Hash }
};
self.queuePacket(ref self.m_svcFlap, (byte[])tlvs, Host);
AttemptsTaken++;
LastSent = Environment.TickCount;
}
private void HandlePacket(ref FLAPHeader flap, byte[] data, IPEndPoint from)
{
var tlvs = (TLVChain)data;
var type = tlvs[SvcLayer.TLV_TYPE].Value[0];
switch(type)
{
case SvcLayer.TYPE_USER_DATA:
if (Connections.Contains(from))
m_events.TriggerPacketReceived(this, new PacketEventArgs(from, ref flap, tlvs[SvcLayer.TLV_USER_DATA].Value));
break;
case SvcLayer.TYPE_CONNECT_ACCEPT:
if (IsConnecting
&& m_connReq.Host.Equals(from)
&& Misc.CompareByteArrays(m_connReq.Hash, tlvs[SvcLayer.TLV_CONNECT_HASH].Value))
{
m_connReq = null;
Connections.Add(from);
m_events.Connected(this, new HostConnectEventArgs(from, true));
}
break;
case SvcLayer.TYPE_CONNECT_REQST:
if (m_acceptsIncomingConnections
&& (!this.IsConnecting || m_connReq.Host != from)
&& m_events.AuthorizeIncomingConnection(this, new HostEventArgs(from))
&& !this.Connections.Contains(from))
{
var tosend = new TLVChain(2)
{
new TLV { TypeID = SvcLayer.TLV_TYPE, Value = new byte[1] { SvcLayer.TYPE_CONNECT_ACCEPT } },
new TLV { TypeID = SvcLayer.TLV_CONNECT_HASH, Value = tlvs[SvcLayer.TLV_CONNECT_HASH].Value }
};
sendPacket(from, ref flap, (byte[])tosend);
Connections.Add(from);
m_events.Connected(this, new HostConnectEventArgs(from, false));
}
break;
}
}
/// <summary>
/// Выполняет попытку входа в сеть ICQ.
/// </summary>
public void SignIn()
{
if (m_signInAsync != null)
throw new InvalidAsynchronousStateException("SignIn/BeginSignIn/SignInAsync was already called and is not finished.");
else if (string.IsNullOrWhiteSpace(m_icqConfig.UserLogin))
throw new ArgumentNullException("ICQClientConfiguration.UserLogin", "Value is null, empty, or consisting only from white-space characters.");
else if (string.IsNullOrWhiteSpace(m_icqConfig.UserPassword))
throw new ArgumentNullException("ICQClientConfiguration.UserPassword", "Value is null, empty, or consisting only from white-space characters.");
else if (!m_icqConfig.LoginServer.IsValid)
throw new ArgumentException("Invalid ICQClientConfiguration.LoginServer value specified.");
try
{
// Set state to Connecting
this.changeState(ICQClientState.Connecting);
LogWrite("SignIn starting for Host({0}), UserLogin({1}), UserPassword.Length({2})", m_icqConfig.LoginServer, m_icqConfig.UserLogin, m_icqConfig.UserPassword.Length);
// Connect to login server
this.Connection.Connect(m_icqConfig.LoginServer.EndPoint, false);
LogWrite("OSCAR is connected to host({0})", m_icqConfig.LoginServer.Address);
// Define our packet read timeout
const int readTimeout = (int) TimeSpan.TicksPerSecond * 10;
// Expect: SRV_HELLO
var flap = FLAPHeader.Empty;
byte[] packet = null;
if (!this.Connection.Receive(ref flap, out packet, true, readTimeout))
throw new TimeoutException("Server did not reply in proper time, expected: SRV_HELLO");
ICQ.Packets.SRV_HELLO_VALIDATE(this, ref flap, packet);
// Reply with: CLI_HELLO
ICQ.Packets.CLI_HELLO(ref flap, ref packet);
this.Connection.Send(ref flap, packet);
// Send: CLI_CHALLENGE_REQUEST
byte[] userLoginBytes = Encoding.UTF8.GetBytes(m_icqConfig.UserLogin);
var tlvs = new TLVChain(3)
{
new TLV { TypeID = 0x01, Value = userLoginBytes },
new TLV { TypeID = 0x4B, Value = OSCAR.EmptyData },
new TLV { TypeID = 0x5A, Value = OSCAR.EmptyData },
};
ICQ.Packets.Make(ref flap, ref packet, ICQ.Packets.CLI_CHALLENGE_REQUEST, tlvs);
this.Connection.Send(ref flap, packet);
// Set state to Authorizing
this.changeState(ICQClientState.Authorizing);
byte[] auth_challenge = null;
// Expect: SRV_CHALLENGE_REPLY or SRV_AUTH_RESPONSE
if (!this.Connection.Receive(ref flap, out packet, true, readTimeout))
throw new TimeoutException("Server did not reply in proper time, expected: SRV_CHALLENGE_REPLY or SRV_AUTH_RESPONSE");
else if (!flap.IsSNAC)
throw new ProtocolViolationException("Expected SNAC, got packet: " + flap);
var snac = (SNAC)packet;
if (snac.Type == ICQ.Packets.SRV_CHALLENGE_RESPONSE)
{
// We have challenge now, read it (TLV without TypeID)
var challengeLength = XBitConvert.ToUInt16(snac.Data, 0);
auth_challenge = new byte[challengeLength];
Array.Copy(snac.Data, 2, auth_challenge, 0, challengeLength);
}
else if (snac.Type == ICQ.Packets.SRV_AUTH_RESPONSE)
{
// Most likely login rejected
goto handleAuthResponse;
}
else
throw new ProtocolViolationException("Expected SNAC: SRV_AUTH_RESPONSE or SRV_CHALLENGE_RESPONSE, got: " + snac);
// Send: CLI_AUTH_REQUEST
byte[] protectedAuthRequest = ICQ.AimPasswordHashFunction(auth_challenge, m_icqConfig.UserPassword, "AOL Instant Messenger (SM)");
tlvs = new TLVChain(3)
{
new TLV { TypeID = 0x01, Value = userLoginBytes },
new TLV { TypeID = 0x25, Value = protectedAuthRequest },
new TLV { TypeID = 0x4C, Value = OSCAR.EmptyData },
};
ICQ.Packets.Make(ref flap, ref packet, ICQ.Packets.CLI_AUTH_REQUEST, tlvs);
this.Connection.Send(ref flap, packet);
#if IMadering
Следующие данные идентификации клиента уже не обязательны (изменение 2011 года).
0003 // Метка блока данных со строкой идентификации клиента
0024 // Длина строки идентификации клиента
TestBuddy AOL Instant Messenger (SM) // Строка идентификации клиента
0017 // Метка блока данных с мажорной версией клиента
0002 // Длина данных о мажорной версии
0001 // Номер мажорной версии: 1
0018 // Метка блока данных о минорной версии клиента
0002 // Длина данных о минорной версии
0000 // Номер минорной версии: 0
0019 // Метка блока данных о меньшей версии клиента
0002 // Длина данных о меньшей версии
0000 // Номер меньшей версии: 0
001a // Метка блока данных о номере сборки клиента
0002 // Длина данных номера сборки
0001 // Номер сборки клиента: 1
0016 // Метка блока данных идентификатора клиента
0002 // Длина данных идентификатора
010e // Идентификатор клиента (значение: 270)
000f // Метка блока данных о языке клиента
0002 // Длина данных о языке
656e // Язык клиента (значение: en)
000e // Метка блока данных о стране клиента
0002 // Длина данных о стране
7573 // Страна клиента (значение: us)
Дополнения пакета:
0014 // Метка блока данных с "Client distribution number"
0004 // Длина данных в блоке
00000150 // Client distribution number (значение: 336)
004a // Метка блока поддержки мультиподключений к серверу с одним UIN
0001 // Длина данных
01 // Флаг поддержки мультиподключений
#endif
// Expect: SRV_AUTH_RESPONSE
if (!this.Connection.Receive(ref flap, out packet, true, readTimeout))
throw new TimeoutException("Server did not reply in proper time, expected: SRV_AUTH_RESPONSE");
else if (!flap.IsSNAC)
throw new ProtocolViolationException("Expected SNAC, got packet: " + flap);
snac = (SNAC)packet;
if (snac.Type != ICQ.Packets.SRV_AUTH_RESPONSE)
throw new ProtocolViolationException("Expected SNAC: SRV_AUTH_RESPONSE, got: " + snac);
handleAuthResponse:
// Construct TLVChain from SNAC packet data
tlvs = (TLVChain)snac.Data;
// Connection is not needed anymore
this.Connection.Disconnect(0);
// Did authorization fail?
if ( tlvs.Contains(0x08) )
{
// Do we have reason/error code TLV?
ushort errorCode = 0;
if (tlvs.Contains(0x0008))
{
// Get reason/error code
errorCode = XBitConvert.ToUInt16(tlvs[0x0008].Value, 0);
}
else
this.LogWrite("[WARNING] (SRV_AUTH_RESPONSE:AUTH_FAIL) does not contain error code (tlv:0x0008)!");
// Is there any
string helpUrl = null;
if (tlvs.Contains(0x04))
helpUrl = Encoding.ASCII.GetString(tlvs[0x04].Value);
else
this.LogWrite("[WARNING] (SRV_AUTH_RESPONSE:AUTH_FAIL) does not contain Help Url (tlv:0x04).");
// Event:
throw new ICQException(this, "Authorization failed.", helpUrl, errorCode);
}
else
{
// Anything is fine!
if (!tlvs.Contains(0x05) || !tlvs.Contains(0x06))
throw new ProtocolViolationException("Received invalid/unsupported SRV_AUTH_RESPONSE packet (no required info...).");
// Get BOSS info
byte[] bossCookie = tlvs[0x06].Value;
string bossHost = Encoding.UTF8.GetString(tlvs[0x05].Value);
// Continue SignIn
this.LogWrite("Authorization complete, received bossCookie(length: {0}) and bossHost({1})", bossCookie.Length, bossHost);
this.changeState(ICQClientState.Authorized);
this.ConnectInitSession(new NetworkHost(bossHost, 5190), bossCookie);
}
throw new NotImplementedException();
}
catch (Exception ex)
{
LogWrite("SignIn exception: {0}", ex);
this.changeState(ICQClientState.Idle, ex);
}
}
/// <summary>
/// Отправляет данные на подключенный хост. Он должен быть подключен к текущему пиру.
/// </summary>
/// <param name="to">Адресат доставки</param>
/// <param name="data">Данные для отправки</param>
public void Send(EndPoint to, byte[] data)
{
#if DEBUG
if (!Connections.Contains(to))
throw new ArgumentException('\"' + to.ToString() + "' is not connected peer.");
#endif
var tlvs = new TLVChain(2)
{
new TLV { TypeID = SvcLayer.TLV_TYPE, Value = new byte[1] { SvcLayer.TYPE_USER_DATA } },
new TLV { TypeID = SvcLayer.TLV_USER_DATA, Value = data},
};
m_sendBuffer.Enqueue(new OSCARQueueEntity { Host = to, FLAP = m_svcFlap, Data = (byte[])tlvs });
}
public static void Make(ref FLAPHeader flap, ref byte[] packet, sSNACType type, TLVChain tlvs, uint requestID = 0, eSNACFlags snacFlags = eSNACFlags.None)
{
flap.Channel = (byte)eFLAPChannel.SNACPacket;
var snac = new SNAC(type, requestID, snacFlags);
snac.Data = (byte[])tlvs;
packet = (byte[])snac;
}
