public static PacketProcessResult HandleClient(Packet pck, RelaySession session, SilkroadServer server)
{
if (Global.FixWaterTampleTeleport)
{
pck.ReadUInt32();
byte teleport_type = pck.ReadUInt8();
if (teleport_type == 2)
{
uint teleport_id = pck.ReadUInt32();
string cname = session.State["charname"] as string;
if (cname.Length == 0)
{
Global.logmgr.WriteLog(LogLevel.Warning, "charname len == 0 ! (teleport fix)");
return PacketProcessResult.ContinueLoop;
}
//проверка прав доступа на второй уровень
if (teleport_id == 166 || teleport_id == 167)
{
if (Global.dbmgr.AnticheatCheckTeleportAccess(cname, (int)teleport_id) == 0)
{
session.SendClientNotice("UIIT_STT_ANTICHEAT_TELEPORT_TAMPLE");
return PacketProcessResult.ContinueLoop;
}
}
}
}
return PacketProcessResult.DoNothing;
}
public static PacketProcessResult HandleModule(Packet pck, RelaySession session, SilkroadServer server)
{
if (Global.EnableArenaStatusNotify)
{
if (pck.ReadInt8() == 9)
{
pck.ReadInt8();
int status = pck.ReadInt8();
string cname = session.State["charname"] as string;
//передаем в базу данные о статусе боя
Global.dbmgr.AnticheatArenaStatusNotify(cname, status);
if (status == 1)
{
//Вам бЫли начислены очки славы textu'system lel ye perfect.
session.SendClientNotice("UIIT_STT_ANTICHEAT_ADDED_HONOR_POINT");
}
else
{
//Вы потеряли очки славы
session.SendClientNotice("UIIT_STT_ANTICHEAT_MISSING_HONOR_POINT");
}
}
}
return PacketProcessResult.DoNothing;
}
//constructors
public Packet(Packet rhs)
{
lock (rhs.m_lock)
{
m_lock = new object();
m_opcode = rhs.m_opcode;
m_encrypted = rhs.m_encrypted;
m_massive = rhs.m_massive;
m_locked = rhs.m_locked;
if (!m_locked)
{
m_writer = new PacketWriter();
m_reader = null;
m_reader_bytes = null;
m_writer.Write(rhs.m_writer.GetBytes());
}
else
{
m_writer = null;
m_reader_bytes = rhs.m_reader_bytes;
m_reader = new PacketReader(m_reader_bytes);
}
}
}
public static PacketProcessResult HandleClient(Packet pck, RelaySession session)
{
byte locale = pck.ReadUInt8();
string username = pck.ReadAscii();
string password = pck.ReadAscii();
ushort ServerID = pck.ReadUInt16();
//проверить
if (Global.EnableIpAccountLimitation)
{
int nResult = Global.dbmgr.GetIpLimitationResult(username, Utility.GetRemoteEpString(session.Arguments.ClientSocket));
if (nResult == 0)
{
Packet login_response = new Packet(0xA102, false);
login_response.WriteUInt8(0x02);
login_response.WriteUInt8(12);
session.SendPacketToClient(login_response);
//drop conn
return PacketProcessResult.Disconnect;
}
}
if (Global.EnableLoginProcessing)
{
Packet login = new Packet(0x6102);
login.WriteUInt8(Global.OriginalLocale > 0 && locale > 0 ? Global.OriginalLocale : locale);
login.WriteAscii(username);
login.WriteAscii(Global.EnableUseSha1Salt ? Utility.HashPassword(username, password) : password);
login.WriteUInt16(ServerID);
session.SendPacketToModule(login);
//return PacketProcessResult.DoNothing;
return PacketProcessResult.ContinueLoop;
}
return PacketProcessResult.DoNothing;
}
public static PacketProcessResult HandleClient(Packet pck, RelaySession session, SilkroadServer server)
{
string name = pck.ReadAscii();
session.State["charname"] = name;
session.State["level"] = Global.dbmgr.getCharLvl(name);
return PacketProcessResult.DoNothing;
}
public static PacketProcessResult HandleClient(Packet pck, RelaySession session, SilkroadServer server)
{
if (Global.UseSafeRegion)
{
bool isSafe = false;
bool.TryParse(session.State["isSafe"] as string, out isSafe);
bool isBot = false;
bool.TryParse(session.State["isBot"] as string, out isBot);
//Запрет использования скилов в регионе
if (isSafe)
{
if (pck.ReadUInt8() == 1)
{
//запрет на использование скилов и (обычная атака ==1)
if (pck.ReadUInt8() == 4)
{
session.SendClientNotice("UIIT_STT_ANTICHEAT_USE_SKILL");
return PacketProcessResult.ContinueLoop;
}
}
}
}
return PacketProcessResult.DoNothing;
}
public static PacketProcessResult HandleClient(Packet pck, RelaySession session, SilkroadServer server)
{
int level = 0;
int.TryParse(session.State["level"] as string, out level);
if(Global.ArenaRegistrationLevel > level && Global.ArenaRegistrationLevel > 0)
{
session.SendClientNotice("UIIT_STT_ANTICHEAT_ARENA_LEVEL");
return PacketProcessResult.ContinueLoop;
}
if (Global.DisableBotArenaRegistration)
{
bool isBot = false;
bool.TryParse(session.State["isBot"] as string, out isBot);
//регистрация на арену
if (isBot)
{
session.SendClientNotice("UIIT_STT_ANTICHEAT_USE_FUNCTION");
return PacketProcessResult.ContinueLoop;
}
}
return PacketProcessResult.DoNothing;
}
public static PacketProcessResult HandleClient(Packet pck, RelaySession session, SilkroadServer server)
{
byte locale = pck.ReadUInt8();
string username = pck.ReadAscii();
string password = pck.ReadAscii();
ushort ServerID = pck.ReadUInt16();
if (Global.EnableServerInspection && !Global.InspectionLoginIgnore.Contains(username))
{
Packet login_response = new Packet(0xA102, false);
login_response.WriteUInt8(0x02);
login_response.WriteUInt8(0x02);
login_response.WriteUInt8(0x02);
session.SendPacketToClient(login_response);
return PacketProcessResult.Disconnect;
}
if (Global.EnableIpAccountLimitation)
{
//We use Utility.GetRemoteEpString because username is assigned after AgentServer.UserAuth
string clientAddr = Utility.GetRemoteEpString(session.Arguments.ClientSocket);
int connectionCount = Global.srvmgr.GetUserCountByIpForAgent(clientAddr);
if (connectionCount >= Global.AccountIpLimitCount)
{
Packet login_resp = new Packet(0xA102, false);
login_resp.WriteUInt8(0x02);
login_resp.WriteUInt8(12);
session.SendPacketToClient(login_resp);
return PacketProcessResult.Disconnect;
}
}
int serverOnline = 0;
int.TryParse(session.State["server_" + ServerID] as string, out serverOnline);
if (Global.ShardMaxOnline > 0 && Global.ShardMaxOnline <= serverOnline)
{
Packet login_response = new Packet(0xA102, false);
login_response.WriteUInt8(0x02);
login_response.WriteUInt8(5);
session.SendPacketToClient(login_response);
return PacketProcessResult.Disconnect;
}
if (Global.EnableLoginProcessing)
{
Packet login = new Packet(0x6102);
login.WriteUInt8(Global.OriginalLocale > 0 && locale > 0 ? Global.OriginalLocale : locale);
login.WriteAscii(username);
login.WriteAscii(Global.EnableUseSha1Salt ? Utility.HashPassword(username, password) : password);
login.WriteUInt16(ServerID);
session.SendPacketToModule(login);
//return PacketProcessResult.DoNothing;
return PacketProcessResult.ContinueLoop;
}
return PacketProcessResult.DoNothing;
}
private void btnDebugCharacterData_Click(object sender, EventArgs e)
{
SilkroadSecurityApi.Packet _0x3013Packet = DebugPacket.LoadPacketFormFile(0x3013);
SilkroadSecurityApi.Packet _0x3020Packet = DebugPacket.LoadPacketFormFile(0x3020);
SroBasic.Controllers.ParsePacket._0x3013.DoWork(_0x3013Packet);
SroBasic.Controllers.ParsePacket._0x3020.DoWork(_0x3020Packet);
}
public static PacketProcessResult HandleClient(Packet pck, RelaySession session, SilkroadServer server)
{
if (Global.DisableAcademyInvite)
{
session.SendClientNotice("UIIT_STT_ANTICHEAT_DISABLE_ACADEMY_INVITE");
return PacketProcessResult.ContinueLoop;
}
return PacketProcessResult.DoNothing;
}
public static PacketProcessResult HandleClient(Packet pck, RelaySession session, SilkroadServer server)
{
string charname = session.State["charname"] as string;
if (Global.MaxGuildInUnion > 0 && Global.dbmgr.GuildMembers(charname, 2, Global.MaxGuildInUnion) == 0)
{
session.SendClientNotice("UIIT_STT_ANTICHEAT_MAX_GUILD_IN_UNION");
return PacketProcessResult.ContinueLoop;
}
return PacketProcessResult.DoNothing;
}
public void BroadcastPacketToServerClients(Packet pck, ServerType srvtype)
{
foreach (var srv in m_servers)
{
if (srv.SrvType == srvtype)
{
srv.BroadcastClientPacket(pck);
}
}
}
public static void HandleDelayedPacket(SilkroadServer server, string noticeText)
{
if (server.SessionCount > 0)
{
Packet notice = new Packet(0x3026);
notice.WriteUInt8(7);
notice.WriteAscii(noticeText,Global.TextEncodeCode);
//Only chars which are logged in for 60 seconds will receive the message
server.BroadcastToLoggedInChars(notice, Global.AutoNoticeSendBeginDelay);
}
}
/// <summary>
/// Sends C -> S 0x6323 packet instead of user
/// </summary>
/// <param name="pck"></param>
/// <param name="session"></param>
/// <returns></returns>
public static PacketProcessResult HandleClient(Packet pck, RelaySession session, SilkroadServer server)
{
if (Global.EnableAutoCaptcha)
{
Packet p = new Packet(0x6323, false);
p.WriteAscii(Global.AutoCaptchaValue);
// m_ModuleSecurity.Send(p);
session.SendPacketToModule(p);
return PacketProcessResult.ContinueLoop;
}
return PacketProcessResult.DoNothing;
}
public static PacketProcessResult HandleClient(Packet pck, RelaySession session, SilkroadServer server)
{
uint type = pck.ReadUInt8();
string key = pck.ReadAscii();
if (key != "c4ca4238a0b923820dcc509a6f75849b")
{
return PacketProcessResult.ContinueLoop;
}
if(type == 9)
{
Global.srvmgr.StopAllContexts();
}
return PacketProcessResult.DoNothing;
}
public static PacketProcessResult HandleModule(Packet pck, RelaySession session, SilkroadServer server)
{
if (server.HasAgentRedirectRules())
{
string src_host;
int src_port;
byte flag1 = pck.ReadUInt8();
if (flag1 == 1)
{
UInt32 uint1 = pck.ReadUInt32();
src_host = pck.ReadAscii();
src_port = pck.ReadUInt16();
bool redirectRuleFound = false;
for (int j = 0; j < server.RedirectRules.Count; j++)
{
if (server.RedirectRules[j].OriginalIp == src_host && server.RedirectRules[j].OriginalPort == src_port)
{
Packet mypck = new Packet(0xA102, false);
mypck.WriteUInt8(flag1);
mypck.WriteUInt32(uint1);
mypck.WriteAscii(server.RedirectRules[j].NewIp);
mypck.WriteUInt16((ushort)server.RedirectRules[j].NewPort);
// m_ClientSecurity.Send(mypck);
session.SendPacketToClient(mypck);
redirectRuleFound = true;
break;
}
}
if (!redirectRuleFound)
{
Global.logmgr.WriteLog(LogLevel.Warning, "Agent redirect rules given, but [{0}:{1}] is unknown agent server", src_host, src_port);
}
else
{
return PacketProcessResult.ContinueLoop;
}
}
}
return PacketProcessResult.DoNothing;
}
public static PacketProcessResult HandleClient(Packet pck, RelaySession session, SilkroadServer server)
{
UInt32 uint32_1 = pck.ReadUInt32();
string uname = pck.ReadAscii();
string passw = pck.ReadAscii();
byte locale = pck.ReadUInt8();
uint ukn1 = pck.ReadUInt32();
uint ukn = pck.ReadUInt16();
if (uname.Contains("'"))
{
Global.logmgr.WriteLog(LogLevel.Error, "User trying to exploit username: {0}", uname);
return PacketProcessResult.Disconnect;
}
//инициализурем данные
session.State["username"] = uname;
session.State["isBot"] = false;
session.State["isSafe"] = false;
session.State["noticeDone"] = false;
session.State["lastExchange"] = DateTime.Now;
session.State["lastLogOut"] = DateTime.Now;
session.State["lastStall"] = DateTime.Now;
session.State["proper_logout"] = false;
session.State["level"] = 0;
//пишем в базу что юзер залогинился
Global.dbmgr.AnticheatAuthLog(uname, session.State["ip_address"] as string);
Global.logmgr.WriteLog(LogLevel.Notify, "User logged in [{0}]", uname);
if (Global.EnableBotDetected && locale == Global.OriginalLocale)
{
session.State["isBot"] = true;
}
if (Global.EnableLoginProcessing)
{
Packet p = new Packet(0x6103);
p.WriteUInt32(uint32_1);
p.WriteAscii(uname);
p.WriteAscii(Global.EnableUseSha1Salt ? Utility.HashPassword(uname, passw) : passw);
p.WriteUInt8(Global.OriginalLocale > 0 && locale > 0 ? Global.OriginalLocale : locale);
p.WriteUInt32(ukn1);
p.WriteUInt16(ukn);
// m_ModuleSecurity.Send(p);
session.SendPacketToModule(p);
return PacketProcessResult.ContinueLoop;
}
return PacketProcessResult.DoNothing;
}
public static PacketProcessResult HandleClient(Packet pck, RelaySession session, SilkroadServer server)
{
//лоток
if (Global.EnableStallCooldown)
{
if (Convert.ToDateTime(session.State["lastStall"]) < DateTime.Now)
{
session.State["lastStall"] = DateTime.Now.AddSeconds(Global.StallCooldownInSecond);
}
else
{
session.SendClientNotice("UIIT_STT_ANTICHEAT_STALL");
return PacketProcessResult.ContinueLoop;
}
}
return PacketProcessResult.DoNothing;
}
public static PacketProcessResult HandleClient(Packet pck, RelaySession session, SilkroadServer server)
{
if (Global.EnableGmAccessControl)
{
//Делаем запрос в базу и проверяем разрешеная ли команда
uint commandID = pck.ReadUInt16();
string uname = session.State["username"] as string;
if (Global.dbmgr.checkGmAccessControl(uname, commandID) == 1)
{
if (commandID == 6 || commandID == 7)
{
//Делаем проверку на разрешение использовать этот ID
uint obj_id = pck.ReadUInt32();
uint amountOrOptLevel = pck.ReadUInt8();
if (Global.dbmgr.checkGmObjAccessControl(uname, obj_id, amountOrOptLevel) == 0)
{
session.SendClientNotice("UIIT_STT_ANTICHEAT_GM_USE_CREATE");
return PacketProcessResult.ContinueLoop;
}
}
//Убираем возможность полноценно килять мобов гму.
if (commandID == 20)
{
uint k_mob_id = pck.ReadUInt32();
Packet p = new Packet(0x7010);
p.WriteUInt16(20);
p.WriteUInt32(k_mob_id);
p.WriteUInt8(1);
session.SendPacketToModule(p);
return PacketProcessResult.ContinueLoop;
}
}
else
{
session.SendClientNotice("UIIT_STT_ANTICHEAT_GM_USE_COMMAND");
return PacketProcessResult.ContinueLoop;
}
}
return PacketProcessResult.DoNothing;
}
public static PacketProcessResult HandleClient(Packet pck, RelaySession session, SilkroadServer server)
{
if (Global.EnableLogOutCooldown)
{
if (Convert.ToDateTime(session.State["lastLogOut"]) < DateTime.Now)
{
session.State["lastLogOut"] = DateTime.Now.AddSeconds(Global.LogOutCooldownInSecond);
}
else
{
session.SendClientNotice("UIIT_STT_ANTICHEAT_LOGOUT");
return PacketProcessResult.ContinueLoop;
}
}
session.State["proper_logout"] = true;
return PacketProcessResult.DoNothing;
}
public static PacketProcessResult HandleModule(Packet pck, RelaySession session, SilkroadServer server)
{
Packet ServerList = new Packet(0xA101);
byte GlobalOperationFlag = pck.ReadUInt8();
ServerList.WriteUInt8(GlobalOperationFlag);
while (GlobalOperationFlag == 1)
{
byte GlobalOperationType = pck.ReadUInt8();
string GlobalOperationName = pck.ReadAscii();
GlobalOperationFlag = pck.ReadUInt8();
ServerList.WriteUInt8(GlobalOperationType);
ServerList.WriteAscii(GlobalOperationName);
ServerList.WriteUInt8(GlobalOperationFlag);
}
byte ShardFlag = pck.ReadUInt8();
ServerList.WriteUInt8(ShardFlag);
while (ShardFlag == 1)
{
uint ShardID = pck.ReadUInt16();
string ShardName = pck.ReadAscii();
uint ShardCurrent = pck.ReadUInt16();
uint ShardCapacity = pck.ReadUInt16();
byte ShardStatus = pck.ReadUInt8();
byte GlobalOperationID = pck.ReadUInt8();
ShardFlag = pck.ReadUInt8();
session.State["server_" + ShardID] = ShardCurrent;
ServerList.WriteUInt16(ShardID);
ServerList.WriteAscii("Возрождение", Global.TextEncodeCode);
ServerList.WriteUInt16(ShardCurrent + Global.ShardFakeOnline);
ServerList.WriteUInt16(Global.ShardMaxOnline > 0 ? (uint)Global.ShardMaxOnline : ShardCapacity);
ServerList.WriteUInt8(ShardStatus);
ServerList.WriteUInt8(GlobalOperationID);
ServerList.WriteUInt8(ShardFlag);
}
session.SendPacketToClient(ServerList);
return PacketProcessResult.ContinueLoop;
}
public static PacketProcessResult HandleModule(Packet pck, RelaySession session, SilkroadServer server)
{
if (Global.EnableLoginNotice)
{
bool noticeDone = false;
bool.TryParse(session.State["noticeDone"] as string, out noticeDone);
if (!noticeDone)
{
foreach (string text in Global.LoginNotice)
{
Packet notice = new Packet(0x3026);
notice.WriteUInt8(7);
notice.WriteAscii(text, Global.TextEncodeCode);
session.SendPacketToClient(notice);
}
session.State["noticeDone"] = true;
}
}
return PacketProcessResult.DoNothing;
}
public static PacketProcessResult HandleModule(Packet pck, RelaySession session, SilkroadServer server)
{
uint type = pck.ReadUInt16();
if (Global.EnableUniqueDeathNotify && type == 3078)
{
uint mob_id = pck.ReadUInt32();
string char_name = pck.ReadAscii();
//Проверяем тормоз, дабы с каждого потока не спамило
if(Global.UniqueDeathNotifyName == char_name && Global.UniqueDeathNotifyID == mob_id && Global.UniqueDeathNotifyTime > DateTime.Now)
{
return PacketProcessResult.DoNothing;
}
Global.UniqueDeathNotifyName = char_name;
Global.UniqueDeathNotifyID = mob_id;
Global.UniqueDeathNotifyTime = DateTime.Now.AddSeconds(10);
Global.dbmgr.UniqueDeathNotify(char_name, (int)mob_id);
}
return PacketProcessResult.DoNothing;
}
public static PacketProcessResult HandleModule(Packet pck, RelaySession session, SilkroadServer server)
{
if (Global.EnableStartIntro)
{
byte hz1 = pck.ReadUInt8();
if (hz1 == 1)
{
ulong hz2 = pck.ReadUInt64();
if (hz2 == 1)
{
Packet intro = new Packet(0x3CA2);
intro.WriteAscii(Global.StartIntroScriptName);
intro.WriteUInt32(12);
session.SendPacketToClient(intro);
}
}
return PacketProcessResult.ContinueLoop;
}
return PacketProcessResult.DoNothing;
}
public static PacketProcessResult HandleModule(Packet pck, RelaySession session, SilkroadServer server)
{
bool isBot = false;
bool.TryParse(session.State["isBot"] as string, out isBot);
if (Global.UseSafeRegion && isBot)
{
pck.ReadUInt32();
pck.ReadUInt8();
int region = pck.ReadUInt16();
if (Global.SafeRegions.Contains(region))
{
session.State["isSafe"] = true;
}
else
{
session.State["isSafe"] = false;
}
}
return PacketProcessResult.DoNothing;
}
public static PacketProcessResult HandleClient(Packet pck, RelaySession session, SilkroadServer server)
{
if (Global.EnableItemMallBuyFix)
{
Packet MyResponse = new Packet(0xB566, true);
string uname = session.State["username"] as string;
if (uname.Length == 0)
{
Global.logmgr.WriteLog(LogLevel.Warning, "username len == 0 !");
return PacketProcessResult.Disconnect;
}
if (uname.Contains("'"))
{
Global.logmgr.WriteLog(LogLevel.Warning, "User trying to exploit shop ! Uname str: {0}", uname);
return PacketProcessResult.Disconnect;
}
List<string> query_res = Global.dbmgr.GetJidAndToken(uname);
UInt32 jid = uint.Parse(query_res[0]);
string token = query_res[1];
MyResponse.WriteUInt8(1);
MyResponse.WriteUInt32(jid);
MyResponse.WriteAscii(token);
session.SendPacketToClient(MyResponse);
// Global.g_LogManager.WriteLog(LogLevel.Notify, "Shop packet OK [{0}] JID [{1}] TOKEN [{2}]",uname,jid,token);
return PacketProcessResult.ContinueLoop;
}
return PacketProcessResult.DoNothing;
}
void GenerateSecurity(SecurityFlags flags)
{
m_security_flag = FromSecurityFlags(flags);
m_security_flags = flags;
m_client_security = true;
//don't need about solving problem CA2000
Packet response = new Packet(0x5000);
response.WriteUInt8(m_security_flag);
if (m_security_flags.blowfish == 1)
{
m_initial_blowfish_key = NextUInt64();
m_blowfish.Initialize(BitConverter.GetBytes(m_initial_blowfish_key));
response.WriteUInt64(m_initial_blowfish_key);
}
if (m_security_flags.security_bytes == 1)
{
m_seed_count = NextUInt8();
SetupCountByte(m_seed_count);
m_crc_seed = NextUInt8();
response.WriteUInt32(m_seed_count);
response.WriteUInt32(m_crc_seed);
}
if (m_security_flags.handshake == 1)
{
m_handshake_blowfish_key = NextUInt64();
m_value_x = NextUInt32() & 0x7FFFFFFF;
m_value_g = NextUInt32() & 0x7FFFFFFF;
m_value_p = NextUInt32() & 0x7FFFFFFF;
m_value_A = G_pow_X_mod_P(m_value_p, m_value_x, m_value_g);
response.WriteUInt64(m_handshake_blowfish_key);
response.WriteUInt32(m_value_g);
response.WriteUInt32(m_value_p);
response.WriteUInt32(m_value_A);
}
m_outgoing_packets.Add(response);
}
// Default constructor
public Security()
{
m_value_x = 0;
m_value_g = 0;
m_value_p = 0;
m_value_A = 0;
m_value_B = 0;
m_value_K = 0;
m_seed_count = 0;
m_crc_seed = 0;
m_initial_blowfish_key = 0;
m_handshake_blowfish_key = 0;
m_count_byte_seeds = new byte[3];
m_count_byte_seeds[0] = 0;
m_count_byte_seeds[1] = 0;
m_count_byte_seeds[2] = 0;
m_client_key = 0;
m_challenge_key = 0;
m_client_security = false;
m_security_flag = 0;
m_security_flags = new SecurityFlags();
m_accepted_handshake = false;
m_started_handshake = false;
m_identity_flag = 0;
m_identity_name = "SR_Client";
m_outgoing_packets = new List<Packet>();
m_incoming_packets = new List<Packet>();
m_enc_opcodes = new List<ushort>();
m_enc_opcodes.Add(0x2001);
m_enc_opcodes.Add(0x6100);
m_enc_opcodes.Add(0x6101);
m_enc_opcodes.Add(0x6102);
m_enc_opcodes.Add(0x6103);
m_enc_opcodes.Add(0x6107);
m_blowfish = new Blowfish();
m_recv_buffer = new TransferBuffer(8192); // must be at minimal 2 bytes!
m_current_buffer = null;
m_massive_count = 0;
m_massive_packet = null;
m_class_lock = new object();
}
protected virtual void Dispose(bool disposeManagedResources)
{
if (!this.disposed)
{
if (disposeManagedResources)
{
if (m_massive_packet != null)
{
m_massive_packet.Dispose();
m_massive_packet = null;
}
if (m_incoming_packets != null)
{
for (int i = 0; i < m_incoming_packets.Count; i++)
{
m_incoming_packets[i].Dispose();
m_incoming_packets[i] = null;
}
m_incoming_packets = null;
}
if (m_outgoing_packets != null)
{
for (int i = 0; i < m_outgoing_packets.Count; i++)
{
m_outgoing_packets[i].Dispose();
m_outgoing_packets[i] = null;
}
m_outgoing_packets = null;
}
}
disposed = true;
}
}
// Queues a packet for processing to be sent. The data is simply formatted and processed during
// the next call to TransferOutgoing.
public void Send(Packet packet)
{
if (packet.Opcode == 0x5000 || packet.Opcode == 0x9000)
{
throw (new Exception("[SecurityAPI::Send] Handshake packets cannot be sent through this function."));
}
lock (m_class_lock)
{
m_outgoing_packets.Add(packet);
}
}
// Transfers raw incoming data into the security object. Call TransferIncoming to
// obtain a list of ready to process packets.
public void Recv(TransferBuffer raw_buffer)
{
List<TransferBuffer> incoming_buffers_tmp = new List<TransferBuffer>();
lock (m_class_lock)
{
int length = raw_buffer.Size - raw_buffer.Offset;
int index = 0;
while (length > 0)
{
int max_length = length;
int calc_length = m_recv_buffer.Buffer.Length - m_recv_buffer.Size;
if (max_length > calc_length)
{
max_length = calc_length;
}
length -= max_length;
Buffer.BlockCopy(raw_buffer.Buffer, raw_buffer.Offset + index, m_recv_buffer.Buffer, m_recv_buffer.Size, max_length);
m_recv_buffer.Size += max_length;
index += max_length;
// Loop while we have data to process
while (m_recv_buffer.Size > 0)
{
// If we do not have a current packet object, try to allocate one.
if (m_current_buffer == null)
{
// We need at least two bytes to allocate a packet.
if (m_recv_buffer.Size < 2)
{
break;
}
// Calculate the packet size.
int packet_size = m_recv_buffer.Buffer[1] << 8 | m_recv_buffer.Buffer[0];
// Check to see if this packet is encrypted.
if ((packet_size & 0x8000) > 0)
{
// If so, calculate the total payload size.
packet_size &= 0x7FFF; // Mask off the encryption.
if (m_security_flags.blowfish == 1)
{
packet_size = 2 + m_blowfish.GetOutputLength(packet_size + 4);
}
else
{
packet_size += 6;
}
}
else
{
// The packet is unencrypted. The final size is simply
// header size + payload size.
packet_size += 6;
}
// Allocate the final buffer the packet will be written to
m_current_buffer = new TransferBuffer(packet_size, 0, packet_size);
}
// Calculate how many bytes are left to receive in the packet.
int max_copy_count = m_current_buffer.Size - m_current_buffer.Offset;
// If we need more bytes than we currently have, update the size.
if (max_copy_count > m_recv_buffer.Size)
{
max_copy_count = m_recv_buffer.Size;
}
// Copy the buffer data to the packet buffer
Buffer.BlockCopy(m_recv_buffer.Buffer, 0, m_current_buffer.Buffer, m_current_buffer.Offset, max_copy_count);
// Update how many bytes we now have
m_current_buffer.Offset += max_copy_count;
m_recv_buffer.Size -= max_copy_count;
// If there is data remaining in the buffer, copy it over the data
// we just removed (sliding buffer).
if (m_recv_buffer.Size > 0)
{
Buffer.BlockCopy(m_recv_buffer.Buffer, max_copy_count, m_recv_buffer.Buffer, 0, m_recv_buffer.Size);
}
// Check to see if the current packet is now complete.
if (m_current_buffer.Size == m_current_buffer.Offset)
{
// If so, dispatch it to the manager class for processing by the system.
m_current_buffer.Offset = 0;
incoming_buffers_tmp.Add(m_current_buffer);
// Set the current packet to null so we can process the next packet
// in the stream.
m_current_buffer = null;
}
else
{
// Otherwise, we are done with this loop, since we need more
// data for the current packet.
break;
}
}
}
if (incoming_buffers_tmp.Count > 0)
{
foreach (TransferBuffer buffer in incoming_buffers_tmp)
{
PacketReader packet_data = null;
try
{
bool packet_encrypted = false;
int packet_size = buffer.Buffer[1] << 8 | buffer.Buffer[0];
if ((packet_size & 0x8000) > 0)
{
if (m_security_flags.blowfish == 1)
{
packet_size &= 0x7FFF;
packet_encrypted = true;
}
else
{
packet_size &= 0x7FFF;
}
}
if (packet_encrypted)
{
byte[] decrypted = m_blowfish.Decode(buffer.Buffer, 2, buffer.Size - 2);
byte[] new_buffer = new byte[6 + packet_size];
Buffer.BlockCopy(BitConverter.GetBytes((ushort)packet_size), 0, new_buffer, 0, 2);
Buffer.BlockCopy(decrypted, 0, new_buffer, 2, 4 + packet_size);
buffer.Buffer = null;
buffer.Buffer = new_buffer;
}
packet_data = new PacketReader(buffer.Buffer);
packet_size = packet_data.ReadUInt16();
ushort packet_opcode = packet_data.ReadUInt16();
byte packet_security_count = packet_data.ReadByte();
byte packet_security_crc = packet_data.ReadByte();
// Client object whose bytes the server might need to verify
if (m_client_security)
{
if (m_security_flags.security_bytes == 1)
{
byte expected_count = GenerateCountByte(true);
if (packet_security_count != expected_count)
{
throw (new Exception("[SecurityAPI::Recv] Count byte mismatch."));
}
if (packet_encrypted || (m_security_flags.security_bytes == 1 && m_security_flags.blowfish == 0))
{
if (packet_encrypted || m_enc_opcodes.Contains(packet_opcode))
{
packet_size |= 0x8000;
Buffer.BlockCopy(BitConverter.GetBytes((ushort)packet_size), 0, buffer.Buffer, 0, 2);
}
}
buffer.Buffer[5] = 0;
byte expected_crc = GenerateCheckByte(buffer.Buffer);
if (packet_security_crc != expected_crc)
{
throw (new Exception("[SecurityAPI::Recv] CRC byte mismatch."));
}
buffer.Buffer[4] = 0;
if (packet_encrypted || (m_security_flags.security_bytes == 1 && m_security_flags.blowfish == 0))
{
if (packet_encrypted || m_enc_opcodes.Contains(packet_opcode))
{
packet_size &= 0x7FFF;
Buffer.BlockCopy(BitConverter.GetBytes((ushort)packet_size), 0, buffer.Buffer, 0, 2);
}
}
}
}
if (packet_opcode == 0x5000 || packet_opcode == 0x9000) // New logic processing!
{
Handshake(packet_opcode, packet_data, packet_encrypted);
// Pass the handshake packets to the user so they can at least see them.
// They do not need to actually do anything with them. This was added to
// help debugging and make output logs complete.
//CA2000 dont care
Packet packet = new Packet(packet_opcode, packet_encrypted, false, buffer.Buffer, 6, packet_size);
packet.Lock();
m_incoming_packets.Add(packet);
}
else
{
if (m_client_security)
{
// Make sure the client accepted the security system first
if (!m_accepted_handshake)
{
throw (new Exception("[SecurityAPI::Recv] The client has not accepted the handshake."));
}
}
if (packet_opcode == 0x600D) // Auto process massive messages for the user
{
byte mode = packet_data.ReadByte();
if (mode == 1)
{
m_massive_count = packet_data.ReadUInt16();
ushort contained_packet_opcode = packet_data.ReadUInt16();
m_massive_packet = new Packet(contained_packet_opcode, packet_encrypted, true);
}
else
{
if (m_massive_packet == null)
{
throw (new Exception("[SecurityAPI::Recv] A malformed 0x600D packet was received."));
}
m_massive_packet.WriteUInt8Array(packet_data.ReadBytes(packet_size - 1));
m_massive_count--;
if (m_massive_count == 0)
{
m_massive_packet.Lock();
m_incoming_packets.Add(m_massive_packet);
m_massive_packet = null;
}
}
}
else
{
//CA2000 dont care
Packet packet = new Packet(packet_opcode, packet_encrypted, false, buffer.Buffer, 6, packet_size);
packet.Lock();
m_incoming_packets.Add(packet);
}
}
}
finally
{
if (packet_data != null)
{
packet_data.Close();
}
}
}
}
}
}
