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server/game/src/desc.cpp

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2022-03-05 12:44:06 +02:00
#include "stdafx.h"
#include "config.h"
#include "utils.h"
#include "desc.h"
#include "desc_client.h"
#include "desc_manager.h"
#include "char.h"
#include "protocol.h"
#include "packet.h"
#include "messenger_manager.h"
#include "sectree_manager.h"
#include "p2p.h"
#include "buffer_manager.h"
#include "sequence.h"
#include "guild.h"
#include "guild_manager.h"
#include "TrafficProfiler.h"
#include "locale_service.h"
#include "HackShield.h"
#include "log.h"
extern int max_bytes_written;
extern int current_bytes_written;
extern int total_bytes_written;
DESC::DESC()
{
Initialize();
}
DESC::~DESC()
{
}
void DESC::Initialize()
{
m_bDestroyed = false;
m_pInputProcessor = NULL;
m_lpFdw = NULL;
m_sock = INVALID_SOCKET;
m_iPhase = PHASE_CLOSE;
m_dwHandle = 0;
m_wPort = 0;
m_LastTryToConnectTime = 0;
m_lpInputBuffer = NULL;
m_iMinInputBufferLen = 0;
m_dwHandshake = 0;
m_dwHandshakeSentTime = 0;
m_iHandshakeRetry = 0;
m_dwClientTime = 0;
m_bHandshaking = false;
m_lpBufferedOutputBuffer = NULL;
m_lpOutputBuffer = NULL;
m_pkPingEvent = NULL;
m_lpCharacter = NULL;
memset( &m_accountTable, 0, sizeof(m_accountTable) );
memset( &m_SockAddr, 0, sizeof(m_SockAddr) );
memset( &m_UDPSockAddr, 0, sizeof(m_UDPSockAddr) );
m_pLogFile = NULL;
#ifndef _IMPROVED_PACKET_ENCRYPTION_
m_bEncrypted = false;
#endif
m_wP2PPort = 0;
m_bP2PChannel = 0;
m_bAdminMode = false;
m_bPong = true;
m_bChannelStatusRequested = false;
m_iCurrentSequence = 0;
m_dwMatrixRows = m_dwMatrixCols = 0;
m_bMatrixTryCount = 0;
m_pkLoginKey = NULL;
m_dwLoginKey = 0;
m_dwPanamaKey = 0;
#ifndef _IMPROVED_PACKET_ENCRYPTION_
memset( m_adwDecryptionKey, 0, sizeof(m_adwDecryptionKey) );
memset( m_adwEncryptionKey, 0, sizeof(m_adwEncryptionKey) );
#endif
m_bCRCMagicCubeIdx = 0;
m_dwProcCRC = 0;
m_dwFileCRC = 0;
m_bHackCRCQuery = 0;
m_dwBillingExpireSecond = 0;
m_outtime = 0;
m_playtime = 0;
m_offtime = 0;
m_pkDisconnectEvent = NULL;
m_seq_vector.clear();
}
void DESC::Destroy()
{
if (m_bDestroyed) {
return;
}
m_bDestroyed = true;
if (m_pkLoginKey)
m_pkLoginKey->Expire();
if (GetAccountTable().id)
DESC_MANAGER::instance().DisconnectAccount(GetAccountTable().login);
if (m_pLogFile)
{
fclose(m_pLogFile);
m_pLogFile = NULL;
}
if (m_lpCharacter)
{
m_lpCharacter->Disconnect("DESC::~DESC");
m_lpCharacter = NULL;
}
SAFE_BUFFER_DELETE(m_lpOutputBuffer);
SAFE_BUFFER_DELETE(m_lpInputBuffer);
event_cancel(&m_pkPingEvent);
event_cancel(&m_pkDisconnectEvent);
if (!g_bAuthServer)
{
if (m_accountTable.login[0] && m_accountTable.passwd[0])
{
TLogoutPacket pack;
strlcpy(pack.login, m_accountTable.login, sizeof(pack.login));
strlcpy(pack.passwd, m_accountTable.passwd, sizeof(pack.passwd));
db_clientdesc->DBPacket(HEADER_GD_LOGOUT, m_dwHandle, &pack, sizeof(TLogoutPacket));
}
}
if (m_sock != INVALID_SOCKET)
{
sys_log(0, "SYSTEM: closing socket. DESC #%d", m_sock);
Log("SYSTEM: closing socket. DESC #%d", m_sock);
fdwatch_del_fd(m_lpFdw, m_sock);
#ifdef _IMPROVED_PACKET_ENCRYPTION_
cipher_.CleanUp();
#endif
socket_close(m_sock);
m_sock = INVALID_SOCKET;
}
m_seq_vector.clear();
}
EVENTFUNC(ping_event)
{
DESC::desc_event_info* info = dynamic_cast<DESC::desc_event_info*>( event->info );
if ( info == NULL )
{
sys_err( "ping_event> <Factor> Null pointer" );
return 0;
}
LPDESC desc = info->desc;
if (desc->IsAdminMode())
return (ping_event_second_cycle);
if (!desc->IsPong())
{
sys_log(0, "PING_EVENT: no pong %s", desc->GetHostName());
desc->SetPhase(PHASE_CLOSE);
return (ping_event_second_cycle);
}
else
{
TPacketGCPing p;
p.header = HEADER_GC_PING;
desc->Packet(&p, sizeof(struct packet_ping));
desc->SetPong(false);
}
#ifdef ENABLE_LIMIT_TIME
if ((unsigned)get_global_time() >= GLOBAL_LIMIT_TIME)
{
extern void ClearAdminPages();
ClearAdminPages();
extern g_bShutdown;
g_bShutdown = true;
}
#endif
desc->SendHandshake(get_dword_time(), 0);
return (ping_event_second_cycle);
}
bool DESC::IsPong()
{
return m_bPong;
}
void DESC::SetPong(bool b)
{
m_bPong = b;
}
bool DESC::Setup(LPFDWATCH _fdw, socket_t _fd, const struct sockaddr_in & c_rSockAddr, DWORD _handle, DWORD _handshake)
{
m_lpFdw = _fdw;
m_sock = _fd;
m_stHost = inet_ntoa(c_rSockAddr.sin_addr);
m_wPort = c_rSockAddr.sin_port;
m_dwHandle = _handle;
//if (LC_IsEurope() == true || LC_IsNewCIBN())
// m_lpOutputBuffer = buffer_new(DEFAULT_PACKET_BUFFER_SIZE * 2);
//else
//NOTE: <20>̰<EFBFBD> <20><><EFBFBD>󺰷<EFBFBD> <20>ٸ<EFBFBD><D9B8><EFBFBD> <20><><EFBFBD>ƾ<EFBFBD><C6BE><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20>ֳ<EFBFBD>?
m_lpOutputBuffer = buffer_new(DEFAULT_PACKET_BUFFER_SIZE * 2);
m_iMinInputBufferLen = MAX_INPUT_LEN >> 1;
m_lpInputBuffer = buffer_new(MAX_INPUT_LEN);
m_SockAddr = c_rSockAddr;
fdwatch_add_fd(m_lpFdw, m_sock, this, FDW_READ, false);
// Ping Event
desc_event_info* info = AllocEventInfo<desc_event_info>();
info->desc = this;
assert(m_pkPingEvent == NULL);
m_pkPingEvent = event_create(ping_event, info, ping_event_second_cycle);
#ifndef _IMPROVED_PACKET_ENCRYPTION_
if (LC_IsEurope())
{
thecore_memcpy(m_adwEncryptionKey, "1234abcd5678efgh", sizeof(DWORD) * 4);
thecore_memcpy(m_adwDecryptionKey, "1234abcd5678efgh", sizeof(DWORD) * 4);
}
else
{
thecore_memcpy(m_adwEncryptionKey, "testtesttesttest", sizeof(DWORD) * 4);
thecore_memcpy(m_adwDecryptionKey, "testtesttesttest", sizeof(DWORD) * 4);
}
#endif // _IMPROVED_PACKET_ENCRYPTION_
// Set Phase to handshake
SetPhase(PHASE_HANDSHAKE);
StartHandshake(_handshake);
sys_log(0, "SYSTEM: new connection from [%s] fd: %d handshake %u output input_len %d, ptr %p",
m_stHost.c_str(), m_sock, m_dwHandshake, buffer_size(m_lpInputBuffer), this);
Log("SYSTEM: new connection from [%s] fd: %d handshake %u ptr %p", m_stHost.c_str(), m_sock, m_dwHandshake, this);
return true;
}
int DESC::ProcessInput()
{
ssize_t bytes_read;
if (!m_lpInputBuffer)
{
sys_err("DESC::ProcessInput : nil input buffer");
return -1;
}
buffer_adjust_size(m_lpInputBuffer, m_iMinInputBufferLen);
bytes_read = socket_read(m_sock, (char *) buffer_write_peek(m_lpInputBuffer), buffer_has_space(m_lpInputBuffer));
if (bytes_read < 0)
return -1;
else if (bytes_read == 0)
return 0;
buffer_write_proceed(m_lpInputBuffer, bytes_read);
if (!m_pInputProcessor)
sys_err("no input processor");
#ifdef _IMPROVED_PACKET_ENCRYPTION_
else
{
if (cipher_.activated()) {
cipher_.Decrypt(const_cast<void*>(buffer_read_peek(m_lpInputBuffer)), buffer_size(m_lpInputBuffer));
}
int iBytesProceed = 0;
// false<73><65> <20><><EFBFBD><EFBFBD> <20>Ǹ<EFBFBD> <20>ٸ<EFBFBD> phase<73><65> <20>ٲ<EFBFBD> <20><><EFBFBD>̹Ƿ<CCB9> <20>ٽ<EFBFBD> <20><><EFBFBD>μ<EFBFBD><CEBC><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD>Ѵ<EFBFBD>!
while (!m_pInputProcessor->Process(this, buffer_read_peek(m_lpInputBuffer), buffer_size(m_lpInputBuffer), iBytesProceed))
{
buffer_read_proceed(m_lpInputBuffer, iBytesProceed);
iBytesProceed = 0;
}
buffer_read_proceed(m_lpInputBuffer, iBytesProceed);
}
#else
else if (!m_bEncrypted)
{
int iBytesProceed = 0;
// false<73><65> <20><><EFBFBD><EFBFBD> <20>Ǹ<EFBFBD> <20>ٸ<EFBFBD> phase<73><65> <20>ٲ<EFBFBD> <20><><EFBFBD>̹Ƿ<CCB9> <20>ٽ<EFBFBD> <20><><EFBFBD>μ<EFBFBD><CEBC><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD>Ѵ<EFBFBD>!
while (!m_pInputProcessor->Process(this, buffer_read_peek(m_lpInputBuffer), buffer_size(m_lpInputBuffer), iBytesProceed))
{
buffer_read_proceed(m_lpInputBuffer, iBytesProceed);
iBytesProceed = 0;
}
buffer_read_proceed(m_lpInputBuffer, iBytesProceed);
}
else
{
int iSizeBuffer = buffer_size(m_lpInputBuffer);
// 8<><38><EFBFBD><EFBFBD>Ʈ <20><><EFBFBD><EFBFBD><EFBFBD>θ<EFBFBD> ó<><C3B3><EFBFBD>Ѵ<EFBFBD>. 8<><38><EFBFBD><EFBFBD>Ʈ <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD>ϸ<EFBFBD> <20>߸<EFBFBD><DFB8><EFBFBD> <20><>ȣȭ <20><><EFBFBD>۸<EFBFBD> <20><>ȣȭ
// <20><> <20><><EFBFBD>ɼ<EFBFBD><C9BC><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD>Ƿ<EFBFBD> ©<><C2A9><EFBFBD><EFBFBD> ó<><C3B3><EFBFBD>ϱ<EFBFBD><CFB1><EFBFBD> <20>Ѵ<EFBFBD>.
if (iSizeBuffer & 7) // & 7<><37> % 8<><38> <20><><EFBFBD><EFBFBD>. 2<><32> <20>¼<EFBFBD><C2BC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD>
iSizeBuffer -= iSizeBuffer & 7;
if (iSizeBuffer > 0)
{
TEMP_BUFFER tempbuf;
LPBUFFER lpBufferDecrypt = tempbuf.getptr();
buffer_adjust_size(lpBufferDecrypt, iSizeBuffer);
int iSizeAfter = TEA_Decrypt((DWORD *) buffer_write_peek(lpBufferDecrypt),
(DWORD *) buffer_read_peek(m_lpInputBuffer),
GetDecryptionKey(),
iSizeBuffer);
buffer_write_proceed(lpBufferDecrypt, iSizeAfter);
int iBytesProceed = 0;
// false<73><65> <20><><EFBFBD><EFBFBD> <20>Ǹ<EFBFBD> <20>ٸ<EFBFBD> phase<73><65> <20>ٲ<EFBFBD> <20><><EFBFBD>̹Ƿ<CCB9> <20>ٽ<EFBFBD> <20><><EFBFBD>μ<EFBFBD><CEBC><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD>Ѵ<EFBFBD>!
while (!m_pInputProcessor->Process(this, buffer_read_peek(lpBufferDecrypt), buffer_size(lpBufferDecrypt), iBytesProceed))
{
if (iBytesProceed > iSizeBuffer)
{
buffer_read_proceed(m_lpInputBuffer, iSizeBuffer);
iSizeBuffer = 0;
iBytesProceed = 0;
break;
}
buffer_read_proceed(m_lpInputBuffer, iBytesProceed);
iSizeBuffer -= iBytesProceed;
buffer_read_proceed(lpBufferDecrypt, iBytesProceed);
iBytesProceed = 0;
}
buffer_read_proceed(m_lpInputBuffer, iBytesProceed);
}
}
#endif // _IMPROVED_PACKET_ENCRYPTION_
return (bytes_read);
}
int DESC::ProcessOutput()
{
if (buffer_size(m_lpOutputBuffer) <= 0)
return 0;
int buffer_left = fdwatch_get_buffer_size(m_lpFdw, m_sock);
if (buffer_left <= 0)
return 0;
int bytes_to_write = MIN(buffer_left, buffer_size(m_lpOutputBuffer));
if (bytes_to_write == 0)
return 0;
int result = socket_write(m_sock, (const char *) buffer_read_peek(m_lpOutputBuffer), bytes_to_write);
if (result == 0)
{
//sys_log(0, "%d bytes written to %s first %u", bytes_to_write, GetHostName(), *(BYTE *) buffer_read_peek(m_lpOutputBuffer));
//Log("%d bytes written", bytes_to_write);
max_bytes_written = MAX(bytes_to_write, max_bytes_written);
total_bytes_written += bytes_to_write;
current_bytes_written += bytes_to_write;
buffer_read_proceed(m_lpOutputBuffer, bytes_to_write);
if (buffer_size(m_lpOutputBuffer) != 0)
fdwatch_add_fd(m_lpFdw, m_sock, this, FDW_WRITE, true);
}
return (result);
}
void DESC::BufferedPacket(const void * c_pvData, int iSize)
{
if (m_iPhase == PHASE_CLOSE)
return;
if (!m_lpBufferedOutputBuffer)
m_lpBufferedOutputBuffer = buffer_new(MAX(1024, iSize));
buffer_write(m_lpBufferedOutputBuffer, c_pvData, iSize);
}
void DESC::Packet(const void * c_pvData, int iSize)
{
assert(iSize > 0);
if (m_iPhase == PHASE_CLOSE) // <20><><EFBFBD><EFBFBD> <20><><EFBFBD>¸<EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20>ʴ´<CAB4>.
return;
if (m_stRelayName.length() != 0)
{
// Relay <20><>Ŷ<EFBFBD><C5B6> <20><>ȣȭ<C8A3><C8AD><EFBFBD><EFBFBD> <20>ʴ´<CAB4>.
TPacketGGRelay p;
p.bHeader = HEADER_GG_RELAY;
strlcpy(p.szName, m_stRelayName.c_str(), sizeof(p.szName));
p.lSize = iSize;
if (!packet_encode(m_lpOutputBuffer, &p, sizeof(p)))
{
m_iPhase = PHASE_CLOSE;
return;
}
m_stRelayName.clear();
if (!packet_encode(m_lpOutputBuffer, c_pvData, iSize))
{
m_iPhase = PHASE_CLOSE;
return;
}
}
else
{
if (m_lpBufferedOutputBuffer)
{
buffer_write(m_lpBufferedOutputBuffer, c_pvData, iSize);
c_pvData = buffer_read_peek(m_lpBufferedOutputBuffer);
iSize = buffer_size(m_lpBufferedOutputBuffer);
}
// TRAFFIC_PROFILE
if (g_bTrafficProfileOn)
TrafficProfiler::instance().Report(TrafficProfiler::IODIR_OUTPUT, *(BYTE *) c_pvData, iSize);
// END_OF_TRAFFIC_PROFILER
#ifdef _IMPROVED_PACKET_ENCRYPTION_
void* buf = buffer_write_peek(m_lpOutputBuffer);
if (packet_encode(m_lpOutputBuffer, c_pvData, iSize))
{
if (cipher_.activated()) {
cipher_.Encrypt(buf, iSize);
}
}
else
{
m_iPhase = PHASE_CLOSE;
}
#else
if (!m_bEncrypted)
{
if (!packet_encode(m_lpOutputBuffer, c_pvData, iSize))
{
m_iPhase = PHASE_CLOSE;
}
}
else
{
if (buffer_has_space(m_lpOutputBuffer) < iSize + 8)
{
sys_err("desc buffer mem_size overflow. memsize(%u) write_pos(%u) iSize(%d)",
m_lpOutputBuffer->mem_size, m_lpOutputBuffer->write_point_pos, iSize);
m_iPhase = PHASE_CLOSE;
}
else
{
// <20><>ȣȭ<C8A3><C8AD> <20>ʿ<EFBFBD><CABF><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD> ũ<>⸦ Ȯ<><C8AE><EFBFBD>Ѵ<EFBFBD>.
/* buffer_adjust_size(m_lpOutputBuffer, iSize + 8); */
DWORD * pdwWritePoint = (DWORD *) buffer_write_peek(m_lpOutputBuffer);
if (packet_encode(m_lpOutputBuffer, c_pvData, iSize))
{
int iSize2 = TEA_Encrypt(pdwWritePoint, pdwWritePoint, GetEncryptionKey(), iSize);
if (iSize2 > iSize)
buffer_write_proceed(m_lpOutputBuffer, iSize2 - iSize);
}
}
}
#endif // _IMPROVED_PACKET_ENCRYPTION_
SAFE_BUFFER_DELETE(m_lpBufferedOutputBuffer);
}
//sys_log(0, "%d bytes written (first byte %d)", iSize, *(BYTE *) c_pvData);
if (m_iPhase != PHASE_CLOSE)
fdwatch_add_fd(m_lpFdw, m_sock, this, FDW_WRITE, true);
}
void DESC::LargePacket(const void * c_pvData, int iSize)
{
buffer_adjust_size(m_lpOutputBuffer, iSize);
sys_log(0, "LargePacket Size %d", iSize, buffer_size(m_lpOutputBuffer));
Packet(c_pvData, iSize);
}
void DESC::SetPhase(int _phase)
{
m_iPhase = _phase;
TPacketGCPhase pack;
pack.header = HEADER_GC_PHASE;
pack.phase = _phase;
Packet(&pack, sizeof(TPacketGCPhase));
switch (m_iPhase)
{
case PHASE_CLOSE:
// <20>޽<EFBFBD><DEBD><EFBFBD><EFBFBD><EFBFBD> ij<><C4B3><EFBFBD>ʹ<EFBFBD><CDB4><EFBFBD><EFBFBD><EFBFBD> <20>Ǹ鼭 <20><><EFBFBD><EFBFBD>
//MessengerManager::instance().Logout(GetAccountTable().login);
m_pInputProcessor = &m_inputClose;
break;
case PHASE_HANDSHAKE:
m_pInputProcessor = &m_inputHandshake;
break;
case PHASE_SELECT:
// <20>޽<EFBFBD><DEBD><EFBFBD><EFBFBD><EFBFBD> ij<><C4B3><EFBFBD>ʹ<EFBFBD><CDB4><EFBFBD><EFBFBD><EFBFBD> <20>Ǹ鼭 <20><><EFBFBD><EFBFBD>
//MessengerManager::instance().Logout(GetAccountTable().login); // <20>ǵ<EFBFBD><C7B5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> break <20>Ȱ<EFBFBD>
case PHASE_LOGIN:
case PHASE_LOADING:
#ifndef _IMPROVED_PACKET_ENCRYPTION_
m_bEncrypted = true;
#endif
m_pInputProcessor = &m_inputLogin;
break;
case PHASE_GAME:
case PHASE_DEAD:
#ifndef _IMPROVED_PACKET_ENCRYPTION_
m_bEncrypted = true;
#endif
m_pInputProcessor = &m_inputMain;
break;
case PHASE_AUTH:
#ifndef _IMPROVED_PACKET_ENCRYPTION_
m_bEncrypted = true;
#endif
m_pInputProcessor = &m_inputAuth;
sys_log(0, "AUTH_PHASE %p", this);
break;
}
}
void DESC::BindAccountTable(TAccountTable * pAccountTable)
{
assert(pAccountTable != NULL);
thecore_memcpy(&m_accountTable, pAccountTable, sizeof(TAccountTable));
DESC_MANAGER::instance().ConnectAccount(m_accountTable.login, this);
}
void DESC::UDPGrant(const struct sockaddr_in & c_rSockAddr)
{
m_UDPSockAddr = c_rSockAddr;
TPacketGCBindUDP pack;
pack.header = HEADER_GC_BINDUDP;
pack.addr = m_UDPSockAddr.sin_addr.s_addr;
pack.port = m_UDPSockAddr.sin_port;
Packet(&pack, sizeof(TPacketGCBindUDP));
}
void DESC::Log(const char * format, ...)
{
if (!m_pLogFile)
return;
va_list args;
time_t ct = get_global_time();
struct tm tm = *localtime(&ct);
fprintf(m_pLogFile,
"%02d %02d %02d:%02d:%02d | ",
tm.tm_mon + 1,
tm.tm_mday,
tm.tm_hour,
tm.tm_min,
tm.tm_sec);
va_start(args, format);
vfprintf(m_pLogFile, format, args);
va_end(args);
fputs("\n", m_pLogFile);
fflush(m_pLogFile);
}
void DESC::StartHandshake(DWORD _handshake)
{
// Handshake
m_dwHandshake = _handshake;
SendHandshake(get_dword_time(), 0);
m_iHandshakeRetry = 0;
}
void DESC::SendHandshake(DWORD dwCurTime, long lNewDelta)
{
TPacketGCHandshake pack;
pack.bHeader = HEADER_GC_HANDSHAKE;
pack.dwHandshake = m_dwHandshake;
pack.dwTime = dwCurTime;
pack.lDelta = lNewDelta;
Packet(&pack, sizeof(TPacketGCHandshake));
m_dwHandshakeSentTime = dwCurTime;
m_bHandshaking = true;
}
bool DESC::HandshakeProcess(DWORD dwTime, long lDelta, bool bInfiniteRetry)
{
DWORD dwCurTime = get_dword_time();
if (lDelta < 0)
{
sys_err("Desc::HandshakeProcess : value error (lDelta %d, ip %s)", lDelta, m_stHost.c_str());
return false;
}
int bias = (int) (dwCurTime - (dwTime + lDelta));
if (bias >= 0 && bias <= 50)
{
if (bInfiniteRetry)
{
BYTE bHeader = HEADER_GC_TIME_SYNC;
Packet(&bHeader, sizeof(BYTE));
}
if (GetCharacter())
sys_log(0, "Handshake: client_time %u server_time %u name: %s", m_dwClientTime, dwCurTime, GetCharacter()->GetName());
else
sys_log(0, "Handshake: client_time %u server_time %u", m_dwClientTime, dwCurTime, lDelta);
m_dwClientTime = dwCurTime;
m_bHandshaking = false;
return true;
}
long lNewDelta = (long) (dwCurTime - dwTime) / 2;
if (lNewDelta < 0)
{
sys_log(0, "Handshake: lower than zero %d", lNewDelta);
lNewDelta = (dwCurTime - m_dwHandshakeSentTime) / 2;
}
sys_log(1, "Handshake: ServerTime %u dwTime %u lDelta %d SentTime %u lNewDelta %d", dwCurTime, dwTime, lDelta, m_dwHandshakeSentTime, lNewDelta);
if (!bInfiniteRetry)
if (++m_iHandshakeRetry > HANDSHAKE_RETRY_LIMIT)
{
sys_err("handshake retry limit reached! (limit %d character %s)",
HANDSHAKE_RETRY_LIMIT, GetCharacter() ? GetCharacter()->GetName() : "!NO CHARACTER!");
SetPhase(PHASE_CLOSE);
return false;
}
SendHandshake(dwCurTime, lNewDelta);
return false;
}
bool DESC::IsHandshaking()
{
return m_bHandshaking;
}
DWORD DESC::GetClientTime()
{
return m_dwClientTime;
}
#ifdef _IMPROVED_PACKET_ENCRYPTION_
void DESC::SendKeyAgreement()
{
TPacketKeyAgreement packet;
size_t data_length = TPacketKeyAgreement::MAX_DATA_LEN;
size_t agreed_length = cipher_.Prepare(packet.data, &data_length);
if (agreed_length == 0) {
// Initialization failure
SetPhase(PHASE_CLOSE);
return;
}
assert(data_length <= TPacketKeyAgreement::MAX_DATA_LEN);
packet.bHeader = HEADER_GC_KEY_AGREEMENT;
packet.wAgreedLength = (WORD)agreed_length;
packet.wDataLength = (WORD)data_length;
Packet(&packet, sizeof(packet));
}
void DESC::SendKeyAgreementCompleted()
{
TPacketKeyAgreementCompleted packet;
packet.bHeader = HEADER_GC_KEY_AGREEMENT_COMPLETED;
Packet(&packet, sizeof(packet));
}
bool DESC::FinishHandshake(size_t agreed_length, const void* buffer, size_t length)
{
return cipher_.Activate(false, agreed_length, buffer, length);
}
bool DESC::IsCipherPrepared()
{
return cipher_.IsKeyPrepared();
}
#endif // #ifdef _IMPROVED_PACKET_ENCRYPTION_
void DESC::SetRelay(const char * c_pszName)
{
m_stRelayName = c_pszName;
}
void DESC::BindCharacter(LPCHARACTER ch)
{
m_lpCharacter = ch;
}
void DESC::FlushOutput()
{
if (m_sock == INVALID_SOCKET) {
return;
}
if (buffer_size(m_lpOutputBuffer) <= 0)
return;
struct timeval sleep_tv, now_tv, start_tv;
int event_triggered = false;
gettimeofday(&start_tv, NULL);
socket_block(m_sock);
sys_log(0, "FLUSH START %d", buffer_size(m_lpOutputBuffer));
while (buffer_size(m_lpOutputBuffer) > 0)
{
gettimeofday(&now_tv, NULL);
int iSecondsPassed = now_tv.tv_sec - start_tv.tv_sec;
if (iSecondsPassed > 10)
{
if (!event_triggered || iSecondsPassed > 20)
{
SetPhase(PHASE_CLOSE);
break;
}
}
sleep_tv.tv_sec = 0;
sleep_tv.tv_usec = 10000;
int num_events = fdwatch(m_lpFdw, &sleep_tv);
if (num_events < 0)
{
sys_err("num_events < 0 : %d", num_events);
break;
}
int event_idx;
for (event_idx = 0; event_idx < num_events; ++event_idx)
{
LPDESC d2 = (LPDESC) fdwatch_get_client_data(m_lpFdw, event_idx);
if (d2 != this)
continue;
switch (fdwatch_check_event(m_lpFdw, m_sock, event_idx))
{
case FDW_WRITE:
event_triggered = true;
if (ProcessOutput() < 0)
{
sys_err("Cannot flush output buffer");
SetPhase(PHASE_CLOSE);
}
break;
case FDW_EOF:
SetPhase(PHASE_CLOSE);
break;
}
}
if (IsPhase(PHASE_CLOSE))
break;
}
if (buffer_size(m_lpOutputBuffer) == 0)
sys_log(0, "FLUSH SUCCESS");
else
sys_log(0, "FLUSH FAIL");
usleep(250000);
}
EVENTFUNC(disconnect_event)
{
DESC::desc_event_info* info = dynamic_cast<DESC::desc_event_info*>( event->info );
if ( info == NULL )
{
sys_err( "disconnect_event> <Factor> Null pointer" );
return 0;
}
LPDESC d = info->desc;
d->m_pkDisconnectEvent = NULL;
d->SetPhase(PHASE_CLOSE);
return 0;
}
bool DESC::DelayedDisconnect(int iSec)
{
if (m_pkDisconnectEvent != NULL) {
return false;
}
desc_event_info* info = AllocEventInfo<desc_event_info>();
info->desc = this;
m_pkDisconnectEvent = event_create(disconnect_event, info, PASSES_PER_SEC(iSec));
return true;
}
void DESC::DisconnectOfSameLogin()
{
if (GetCharacter())
{
if (m_pkDisconnectEvent)
return;
GetCharacter()->ChatPacket(CHAT_TYPE_INFO, LC_TEXT("<EFBFBD>ٸ<EFBFBD> <20><>ǻ<EFBFBD>Ϳ<EFBFBD><CDBF><EFBFBD> <20>α<EFBFBD><CEB1><EFBFBD> <20>Ͽ<EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD> <20>մϴ<D5B4>."));
DelayedDisconnect(5);
}
else
{
SetPhase(PHASE_CLOSE);
}
}
void DESC::SetAdminMode()
{
m_bAdminMode = true;
}
bool DESC::IsAdminMode()
{
return m_bAdminMode;
}
BYTE DESC::GetSequence()
{
return gc_abSequence[m_iCurrentSequence];
}
void DESC::SetNextSequence()
{
if (++m_iCurrentSequence == SEQUENCE_MAX_NUM)
m_iCurrentSequence = 0;
}
void DESC::SendLoginSuccessPacket()
{
TAccountTable & rTable = GetAccountTable();
TPacketGCLoginSuccess p;
p.bHeader = HEADER_GC_LOGIN_SUCCESS_NEWSLOT;
p.handle = GetHandle();
p.random_key = DESC_MANAGER::instance().MakeRandomKey(GetHandle()); // FOR MARK
thecore_memcpy(p.players, rTable.players, sizeof(rTable.players));
for (int i = 0; i < PLAYER_PER_ACCOUNT; ++i)
{
CGuild* g = CGuildManager::instance().GetLinkedGuild(rTable.players[i].dwID);
if (g)
{
p.guild_id[i] = g->GetID();
strlcpy(p.guild_name[i], g->GetName(), sizeof(p.guild_name[i]));
}
else
{
p.guild_id[i] = 0;
p.guild_name[i][0] = '\0';
}
}
Packet(&p, sizeof(TPacketGCLoginSuccess));
}
//void DESC::SendServerStatePacket(int nIndex)
//{
// TPacketGCStateCheck rp;
//
// int iTotal;
// int * paiEmpireUserCount;
// int iLocal;
//
// DESC_MANAGER::instance().GetUserCount(iTotal, &paiEmpireUserCount, iLocal);
//
// rp.header = 1;
// rp.key = 0;
// rp.index = nIndex;
//
// if (g_bNoMoreClient) rp.state = 0;
// else rp.state = iTotal > g_iFullUserCount ? 3 : iTotal > g_iBusyUserCount ? 2 : 1;
//
// this->Packet(&rp, sizeof(rp));
// //printf("STATE_CHECK PACKET PROCESSED.\n");
//}
void DESC::SetMatrixCardRowsAndColumns(unsigned long rows, unsigned long cols)
{
m_dwMatrixRows = rows;
m_dwMatrixCols = cols;
}
unsigned long DESC::GetMatrixRows()
{
return m_dwMatrixRows;
}
unsigned long DESC::GetMatrixCols()
{
return m_dwMatrixCols;
}
bool DESC::CheckMatrixTryCount()
{
if (++m_bMatrixTryCount >= 3)
return false;
return true;
}
void DESC::SetLoginKey(DWORD dwKey)
{
m_dwLoginKey = dwKey;
}
void DESC::SetLoginKey(CLoginKey * pkKey)
{
m_pkLoginKey = pkKey;
sys_log(0, "SetLoginKey %u", m_pkLoginKey->m_dwKey);
}
DWORD DESC::GetLoginKey()
{
if (m_pkLoginKey)
return m_pkLoginKey->m_dwKey;
return m_dwLoginKey;
}
const BYTE* GetKey_20050304Myevan()
{
static bool bGenerated = false;
static DWORD s_adwKey[1938];
if (!bGenerated)
{
bGenerated = true;
DWORD seed = 1491971513;
for (UINT i = 0; i < BYTE(seed); ++i)
{
seed ^= 2148941891ul;
seed += 3592385981ul;
s_adwKey[i] = seed;
}
}
return (const BYTE*)s_adwKey;
}
#ifndef _IMPROVED_PACKET_ENCRYPTION_
void DESC::SetSecurityKey(const DWORD * c_pdwKey)
{
const BYTE * c_pszKey = (const BYTE *) "JyTxtHljHJlVJHorRM301vf@4fvj10-v";
if (g_iUseLocale && !LC_IsKorea())
c_pszKey = GetKey_20050304Myevan() + 37;
thecore_memcpy(&m_adwDecryptionKey, c_pdwKey, 16);
TEA_Encrypt(&m_adwEncryptionKey[0], &m_adwDecryptionKey[0], (const DWORD *) c_pszKey, 16);
sys_log(0, "SetSecurityKey decrypt %u %u %u %u encrypt %u %u %u %u",
m_adwDecryptionKey[0], m_adwDecryptionKey[1], m_adwDecryptionKey[2], m_adwDecryptionKey[3],
m_adwEncryptionKey[0], m_adwEncryptionKey[1], m_adwEncryptionKey[2], m_adwEncryptionKey[3]);
}
#endif // _IMPROVED_PACKET_ENCRYPTION_
void DESC::AssembleCRCMagicCube(BYTE bProcPiece, BYTE bFilePiece)
{
static BYTE abXORTable[32] =
{
102, 30, 0, 0, 0, 0, 0, 0,
188, 44, 0, 0, 0, 0, 0, 0,
39, 201, 0, 0, 0, 0, 0, 0,
43, 5, 0, 0, 0, 0, 0, 0,
};
bProcPiece = (bProcPiece ^ abXORTable[m_bCRCMagicCubeIdx]);
bFilePiece = (bFilePiece ^ abXORTable[m_bCRCMagicCubeIdx+1]);
m_dwProcCRC |= bProcPiece << m_bCRCMagicCubeIdx;
m_dwFileCRC |= bFilePiece << m_bCRCMagicCubeIdx;
m_bCRCMagicCubeIdx += 8;
if (!(m_bCRCMagicCubeIdx & 31))
{
m_dwProcCRC = 0;
m_dwFileCRC = 0;
m_bCRCMagicCubeIdx = 0;
}
}
void DESC::SetBillingExpireSecond(DWORD dwSec)
{
m_dwBillingExpireSecond = dwSec;
}
DWORD DESC::GetBillingExpireSecond()
{
return m_dwBillingExpireSecond;
}
void DESC::push_seq(BYTE hdr, BYTE seq)
{
if (m_seq_vector.size()>=20)
{
m_seq_vector.erase(m_seq_vector.begin());
}
seq_t info = { hdr, seq };
m_seq_vector.push_back(info);
}
BYTE DESC::GetEmpire()
{
return m_accountTable.bEmpire;
}
void DESC::ChatPacket(BYTE type, const char * format, ...)
{
char chatbuf[CHAT_MAX_LEN + 1];
va_list args;
va_start(args, format);
int len = vsnprintf(chatbuf, sizeof(chatbuf), format, args);
va_end(args);
struct packet_chat pack_chat;
pack_chat.header = HEADER_GC_CHAT;
pack_chat.size = sizeof(struct packet_chat) + len;
pack_chat.type = type;
pack_chat.id = 0;
pack_chat.bEmpire = GetEmpire();
TEMP_BUFFER buf;
buf.write(&pack_chat, sizeof(struct packet_chat));
buf.write(chatbuf, len);
Packet(buf.read_peek(), buf.size());
}
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