void VoiceChatClientSocket::OnRead()
{
WorldPacket *data;
// uint16 op
// uint16 size
// <data>
for(;;)
{
// no more data
if( GetReadBufferSize() < 4 )
break;
Read(2, (uint8*)&op);
Read(2, (uint8*)&remaining);
if( GetReadBufferSize() < remaining )
break;
data = new WorldPacket(op, remaining);
data->resize(remaining);
Read(remaining, (uint8*)data->contents());
// handle the packet
sVoiceChatHandler.OnRead(data);
delete data;
remaining = op = 0;
}
}
void WSClient::OnRead()
{
for(;;)
{
if(!_cmd)
{
if(GetReadBufferSize() < 6)
break;
Read(2, (uint8*)&_cmd);
Read(4, (uint8*)&_remaining);
}
if(_remaining && GetReadBufferSize() < _remaining)
break;
if(_cmd == ISMSG_WOW_PACKET)
{
/* optimized version for packet passing, to reduce latency! ;) */
uint32 sid = *(uint32*)&m_readBuffer[0];
uint16 op = *(uint16*)&m_readBuffer[4];
uint32 sz = *(uint32*)&m_readBuffer[6];
WorldSession * session = sClusterInterface.GetSession(sid);
if(session != NULL)
{
WorldPacket * pck = new WorldPacket(op, sz);
pck->resize(sz);
memcpy((void*)pck->contents(), &m_readBuffer[10], sz);
session->QueuePacket(pck);
}
RemoveReadBufferBytes(sz + 10/*header*/, false);
_cmd = 0;
continue;
}
WorldPacket * pck = new WorldPacket(_cmd, _remaining);
_cmd = 0;
pck->resize(_remaining);
Read(_remaining, (uint8*)pck->contents());
/* we could handle auth here */
switch(_cmd)
{
case ISMSG_AUTH_REQUEST:
sClusterInterface.HandleAuthRequest(*pck);
delete pck;
break;
default:
sClusterInterface.QueuePacket(pck);
}
}
}
void AuthSocket::HandleReconnectProof()
{
/*
printf("Len: %u\n", this->GetReadBufferSize());
ByteBuffer buf(58);
buf.resize(58);
Read(58, const_cast<uint8*>(buf.contents()));
buf.hexlike();*/
// Don't update when IP banned, but update anyway if it's an account ban
sLogonSQL->Execute("UPDATE accounts SET lastlogin=NOW(), lastip='%s' WHERE acct=%u;", GetRemoteIP().c_str(), m_account->AccountId);
RemoveReadBufferBytes(GetReadBufferSize(), true);
if(!m_account->SessionKey)
{
uint8 buffer[4];
buffer[0] = 3;
buffer[1] = 0;
buffer[2] = 1;
buffer[3] = 0;
Send(buffer, 4);
}
else
{
uint32 x = 3;
Send((const uint8*)&x, 4);
}
}
void AuthSocket::OnRead()
{
if(GetReadBufferSize() < 1)
return;
uint8 Command = GetReadBuffer(0)[0];
// Handle depending on command
switch(Command)
{
case 0: // AUTH_CHALLENGE
last_recv = time(NULL);
HandleChallenge();
break;
case 1: // AUTH_PROOF
last_recv = time(NULL);
HandleProof();
break;
case 0x10: // REALM_LIST
last_recv = time(NULL);
HandleRealmlist();
break;
}
}
void LogonCommClientSocket::OnRead()
{
while(true)
{
if(!remaining)
{
if(GetReadBufferSize() < 4)
return; // no header
// read header
Read(2, (uint8*)&opcode);
Read(4, (uint8*)&remaining);
// decrypt the first two bytes
if(use_crypto)
{
_recvCrypto.Process((uint8*)&opcode, (uint8*)&opcode, 2);
_recvCrypto.Process((uint8*)&remaining, (uint8*)&remaining, 4);
}
// convert network byte order
remaining = ntohl(remaining);
}
// do we have a full packet?
if(GetReadBufferSize() < remaining)
return;
// create the buffer
WorldPacket buff(opcode, remaining);
if(remaining)
{
buff.resize(remaining);
Read(remaining, (uint8*)buff.contents());
}
// decrypt the rest of the packet
if(use_crypto && remaining)
_recvCrypto.Process((unsigned char*)buff.contents(), (unsigned char*)buff.contents(), remaining);
// handle the packet
HandlePacket(buff);
remaining = 0;
opcode = 0;
}
}
void AuthSocket::OnRead()
{
if(GetReadBufferSize() < 1)
return;
uint8 Command = GetReadBuffer(0)[0];
last_recv = UNIXTIME;
if(Command < MAX_AUTH_CMD && Handlers[Command] != NULL)
(this->*Handlers[Command])();
else
Log.Notice("AuthSocket", "Unknown cmd %u", Command);
}
void WorldSocket::OnRead()
{
for(;;)
{
// Check for the header if we don't have any bytes to wait for.
if(mRemaining == 0)
{
if(GetReadBufferSize() < 6)
{
// No header in the packet, let's wait.
return;
}
// Copy from packet buffer into header local var
ClientPktHeader Header;
Read(6, (uint8*)&Header);
// Decrypt the header
_crypt.DecryptSixRecv((uint8*)&Header);
#ifdef USING_BIG_ENDIAN
mRemaining = mSize = Header.size - 4;
mOpcode = swap32(Header.cmd);
#else
mRemaining = mSize = ntohs(Header.size) - 4;
mOpcode = Header.cmd;
#endif
}
WorldPacket * Packet;
if(mRemaining > 0)
{
if( GetReadBufferSize() < mRemaining )
{
// We have a fragmented packet. Wait for the complete one before proceeding.
return;
}
}
Packet = new WorldPacket(mOpcode, mSize);
Packet->resize(mSize);
if(mRemaining > 0)
{
// Copy from packet buffer into our actual buffer.
Read(mRemaining, (uint8*)Packet->contents());
}
sWorldLog.LogPacket(mSize, mOpcode, mSize ? Packet->contents() : NULL, 0);
mRemaining = mSize = mOpcode = 0;
// Check for packets that we handle
switch(Packet->GetOpcode())
{
case CMSG_PING:
{
_HandlePing(Packet);
delete Packet;
}break;
case CMSG_AUTH_SESSION:
{
_HandleAuthSession(Packet);
}break;
default:
{
if(mSession) mSession->QueuePacket(Packet);
else delete Packet;
}break;
}
}
}
if (getpeername(m_sockDesc, (sockaddr *) &addr, (socklen_t *) &addr_len) < 0) {
throw CSocketException("Fetch of foreign port failed (getpeername())", true);
}
return ntohs(addr.sin_port);
}
CSocket& CSocket::operator<<(const string& sStr )
{
Send(sStr.c_str(), sStr.length());
return *this;
}
CSocket& CSocket::operator>>( string& sStr )
{
char *buff = new char[GetReadBufferSize()];
Recv(buff, GetReadBufferSize());
sStr.append(buff);
delete [] buff;
return *this;
}
int CSocket::OnDataRead(unsigned long timeToWait)
{
/* master file descriptor list */
fd_set master;
struct timeval *ptimeout = NULL;
/* temp file descriptor list for select() */
fd_set read_fds;
void AuthSocket::HandleChallenge()
{
// No header
if(GetReadBufferSize() < 4)
return;
// Check the rest of the packet is complete.
uint8 * ReceiveBuffer = this->GetReadBuffer(0);
#ifdef USING_BIG_ENDIAN
uint16 full_size = swap16(*(uint16*)&ReceiveBuffer[2]);
#else
uint16 full_size = *(uint16*)&ReceiveBuffer[2];
#endif
sLog.outDetail("[AuthChallenge] got header, body is 0x%02X bytes", full_size);
if(GetReadBufferSize() < uint32(full_size+4))
return;
// Copy the data into our cached challenge structure
if(full_size > sizeof(sAuthLogonChallenge_C))
{
Disconnect();
return;
}
sLog.outDebug("[AuthChallenge] got full packet.");
memcpy(&m_challenge, ReceiveBuffer, full_size + 4);
RemoveReadBufferBytes(full_size + 4, true);
//#ifdef USING_BIG_ENDIAN
// uint16 build = swap16(m_challenge.build);
// printf("Build: %u\n", build);
//#endif
// Check client build.
#ifdef USING_BIG_ENDIAN
uint16 build = swap16(m_challenge.build);
#else
uint16 build = m_challenge.build;
#endif
// Check client build.
if(build > LogonServer::getSingleton().max_build)
{
// wtf?
SendChallengeError(CE_WRONG_BUILD_NUMBER);
return;
}
if(build < LogonServer::getSingleton().min_build)
{
// can we patch?
char flippedloc[5] = {0,0,0,0,0};
flippedloc[0] = m_challenge.country[3];
flippedloc[1] = m_challenge.country[2];
flippedloc[2] = m_challenge.country[1];
flippedloc[3] = m_challenge.country[0];
m_patch = PatchMgr::getSingleton().FindPatchForClient(build, flippedloc);
if(m_patch == NULL)
{
// could not find a valid patch
SendChallengeError(CE_WRONG_BUILD_NUMBER);
return;
}
Log.Debug("Patch", "Selected patch %u%s for client.", m_patch->Version,m_patch->Locality);
BigNumber unk;
unk.SetRand(128);
uint8 response[119] = {
0x00, 0x00, 0x00, 0x72, 0x50, 0xa7, 0xc9, 0x27, 0x4a, 0xfa, 0xb8, 0x77, 0x80, 0x70, 0x22,
0xda, 0xb8, 0x3b, 0x06, 0x50, 0x53, 0x4a, 0x16, 0xe2, 0x65, 0xba, 0xe4, 0x43, 0x6f, 0xe3,
0x29, 0x36, 0x18, 0xe3, 0x45, 0x01, 0x07, 0x20, 0x89, 0x4b, 0x64, 0x5e, 0x89, 0xe1, 0x53,
0x5b, 0xbd, 0xad, 0x5b, 0x8b, 0x29, 0x06, 0x50, 0x53, 0x08, 0x01, 0xb1, 0x8e, 0xbf, 0xbf,
0x5e, 0x8f, 0xab, 0x3c, 0x82, 0x87, 0x2a, 0x3e, 0x9b, 0xb7, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xe1, 0x32, 0xa3,
0x49, 0x76, 0x5c, 0x5b, 0x35, 0x9a, 0x93, 0x3c, 0x6f, 0x3c, 0x63, 0x6d, 0xc0, 0x00
};
Send(response, 119);
return;
}
// Check for a possible IP ban on this client.
BAN_STATUS ipb = IPBanner::getSingleton().CalculateBanStatus(GetRemoteAddress());
switch(ipb)
{
case BAN_STATUS_PERMANENT_BAN:
SendChallengeError(CE_ACCOUNT_CLOSED);
return;
case BAN_STATUS_TIME_LEFT_ON_BAN:
SendChallengeError(CE_ACCOUNT_FREEZED);
return;
}
// Null-terminate the account string
m_challenge.I[m_challenge.I_len] = 0;
// Look up the account information
string AccountName = (char*)&m_challenge.I;
sLog.outDebug("[AuthChallenge] Account Name: \"%s\"", AccountName.c_str());
m_account = AccountMgr::getSingleton().GetAccount(AccountName);
if(m_account == 0)
{
sLog.outDebug("[AuthChallenge] Invalid account.");
// Non-existant account
SendChallengeError(CE_NO_ACCOUNT);
return;
}
sLog.outDebug("[AuthChallenge] Account banned state = %u", m_account->Banned);
// Check that the account isn't banned.
if(m_account->Banned == 1)
{
SendChallengeError(CE_ACCOUNT_CLOSED);
return;
}
else if(m_account->Banned > 0)
{
SendChallengeError(CE_ACCOUNT_FREEZED);
return;
}
// update cached locale
if(!m_account->forcedLocale)
{
char temp[4];
temp[0] = m_challenge.country[3];
temp[1] = m_challenge.country[2];
temp[2] = m_challenge.country[1];
temp[3] = m_challenge.country[0];
*(uint32*)&m_account->Locale[0] = *(uint32*)temp;
}
Sha1Hash sha;
//uint32 tc = s.GetNumBytes();
sha.UpdateData( s.AsByteArray(), 32 );
sha.UpdateData( m_account->SrpHash, 20 );
sha.Finalize();
BigNumber x;
x.SetBinary( sha.GetDigest(), sha.GetLength() );
v = g.ModExp(x, N);
b.SetRand(152);
BigNumber gmod = g.ModExp(b, N);
B = ((v * 3) + gmod) % N;
ASSERT(gmod.GetNumBytes() <= 32);
BigNumber unk;
unk.SetRand(128);
uint8 response[200];
uint32 c = 0;
response[c] = 0; c += 1;
response[c] = 0; c += 1;
response[c] = CE_SUCCESS; c += 1;
memcpy(&response[c], B.AsByteArray(), 32); c += 32;
response[c] = 1; c += 1;
response[c] = g.AsByteArray()[0]; c += 1;
response[c] = 32; c += 1;
memcpy(&response[c], N.AsByteArray(), 32); c += 32;
memcpy(&response[c], s.AsByteArray(), s.GetNumBytes()); c += s.GetNumBytes();
memcpy(&response[c], unk.AsByteArray(), 16); c += 16;
response[c] = 0; c += 1;
Send(response, c);
}
void AuthSocket::HandleReconnectChallenge()
{
// No header
if(GetReadBufferSize() < 4)
return;
// Check the rest of the packet is complete.
uint8 * ReceiveBuffer = GetReadBuffer(0);
uint16 full_size = *(uint16*)&ReceiveBuffer[2];
sLog.outDetail("[AuthChallenge] got header, body is 0x%02X bytes", full_size);
if(GetReadBufferSize() < (uint32)full_size+4)
return;
// Copy the data into our cached challenge structure
if(full_size > sizeof(sAuthLogonChallenge_C))
{
Disconnect();
return;
}
sLog.outDebug("[AuthChallenge] got full packet.");
memcpy(&m_challenge, ReceiveBuffer, full_size + 4);
RemoveReadBufferBytes(full_size + 4, false);
// Check client build.
if(m_challenge.build > LogonServer::getSingleton().max_build ||
m_challenge.build < LogonServer::getSingleton().min_build)
{
SendChallengeError(CE_WRONG_BUILD_NUMBER);
return;
}
// Check for a possible IP ban on this client.
BAN_STATUS ipb = IPBanner::getSingleton().CalculateBanStatus(GetRemoteAddress());
switch(ipb)
{
case BAN_STATUS_PERMANENT_BAN:
SendChallengeError(CE_ACCOUNT_CLOSED);
return;
case BAN_STATUS_TIME_LEFT_ON_BAN:
SendChallengeError(CE_ACCOUNT_FREEZED);
return;
}
// Null-terminate the account string
m_challenge.I[m_challenge.I_len] = 0;
// Look up the account information
string AccountName = (char*)&m_challenge.I;
sLog.outDebug("[AuthChallenge] Account Name: \"%s\"", AccountName.c_str());
m_account = AccountMgr::getSingleton().GetAccount(AccountName);
if(m_account == 0)
{
sLog.outDebug("[AuthChallenge] Invalid account.");
// Non-existant account
SendChallengeError(CE_NO_ACCOUNT);
return;
}
sLog.outDebug("[AuthChallenge] Account banned state = %u", m_account->Banned);
// Check that the account isn't banned.
if(m_account->Banned == 1)
{
SendChallengeError(CE_ACCOUNT_CLOSED);
return;
}
else if(m_account->Banned > 0)
{
SendChallengeError(CE_ACCOUNT_FREEZED);
return;
}
if(!m_account->SessionKey)
{
SendChallengeError(CE_SERVER_FULL);
return;
}
/** burlex: this is pure speculation, I really have no idea what this does :p
* just guessed the md5 because it was 16 byte blocks.
*/
MD5_CTX ctx;
MD5_Init(&ctx);
MD5_Update(&ctx, m_account->SessionKey, 40);
uint8 buffer[20];
MD5_Final(buffer, &ctx);
ByteBuffer buf;
buf << uint16(2);
buf.append(buffer, 20);
buf << uint64(0);
buf << uint64(0);
Send(buf.contents(), 34);
}
void AuthSocket::HandleProof()
{
if(GetReadBufferSize() < sizeof(sAuthLogonProof_C))
return ;
// patch
if(m_patch&&!m_account)
{
RemoveReadBufferBytes(75,false);
sLog.outDebug("[AuthLogonProof] Intitiating PatchJob");
uint8 bytes[2] = {0x01,0x0a};
Send(bytes,2);
PatchMgr::getSingleton().InitiatePatch(m_patch, this);
return;
}
if(!m_account)
return;
sLog.outDebug("[AuthLogonProof] Interleaving and checking proof...");
sAuthLogonProof_C lp;
Read(sizeof(sAuthLogonProof_C), (uint8*)&lp);
BigNumber A;
A.SetBinary(lp.A, 32);
Sha1Hash sha;
sha.UpdateBigNumbers(&A, &B, 0);
sha.Finalize();
BigNumber u;
u.SetBinary(sha.GetDigest(), 20);
BigNumber S = (A * (v.ModExp(u, N))).ModExp(b, N);
uint8 t[32];
uint8 t1[16];
uint8 vK[40];
memcpy(t, S.AsByteArray(), 32);
for (int i = 0; i < 16; i++)
{
t1[i] = t[i*2];
}
sha.Initialize();
sha.UpdateData(t1, 16);
sha.Finalize();
for (int i = 0; i < 20; i++)
{
vK[i*2] = sha.GetDigest()[i];
}
for (int i = 0; i < 16; i++)
{
t1[i] = t[i*2+1];
}
sha.Initialize();
sha.UpdateData(t1, 16);
sha.Finalize();
for (int i = 0; i < 20; i++)
{
vK[i*2+1] = sha.GetDigest()[i];
}
m_sessionkey.SetBinary(vK, 40);
uint8 hash[20];
sha.Initialize();
sha.UpdateBigNumbers(&N, NULL);
sha.Finalize();
memcpy(hash, sha.GetDigest(), 20);
sha.Initialize();
sha.UpdateBigNumbers(&g, NULL);
sha.Finalize();
for (int i = 0; i < 20; i++)
{
hash[i] ^= sha.GetDigest()[i];
}
BigNumber t3;
t3.SetBinary(hash, 20);
sha.Initialize();
sha.UpdateData((const uint8*)m_account->UsernamePtr->c_str(), (int)m_account->UsernamePtr->size());
sha.Finalize();
BigNumber t4;
t4.SetBinary(sha.GetDigest(), 20);
sha.Initialize();
sha.UpdateBigNumbers(&t3, &t4, &s, &A, &B, &m_sessionkey, NULL);
sha.Finalize();
BigNumber M;
M.SetBinary(sha.GetDigest(), 20);
// Compare M1 values.
if(memcmp(lp.M1, M.AsByteArray(), 20) != 0)
{
// Authentication failed.
//SendProofError(4, 0);
SendChallengeError(CE_NO_ACCOUNT);
sLog.outDebug("[AuthLogonProof] M1 values don't match.");
return;
}
// Store sessionkey
m_account->SetSessionKey(m_sessionkey.AsByteArray());
// let the client know
sha.Initialize();
sha.UpdateBigNumbers(&A, &M, &m_sessionkey, 0);
sha.Finalize();
SendProofError(0, sha.GetDigest());
sLog.outDebug("[AuthLogonProof] Authentication Success.");
// we're authenticated now :)
m_authenticated = true;
// Don't update when IP banned, but update anyway if it's an account ban
sLogonSQL->Execute("UPDATE accounts SET lastlogin=NOW(), lastip='%s' WHERE acct=%u;", GetRemoteIP().c_str(), m_account->AccountId);
}
void AuthSocket::HandleChallenge()
{
// No header
if(GetReadBufferSize() < 4)
return;
// Check the rest of the packet is complete.
uint8 * ReceiveBuffer = this->GetReadBuffer(0);
uint16 full_size = *(uint16*)&ReceiveBuffer[2];
sLog.outDetail("[AuthChallenge] got header, body is 0x%02X bytes", full_size);
if(GetReadBufferSize() < uint32(full_size+4))
return;
// Copy the data into our cached challenge structure
if(full_size > sizeof(sAuthLogonChallenge_C))
{
Disconnect();
return;
}
sLog.outDebug("[AuthChallenge] got full packet.");
memcpy(&m_challenge, ReceiveBuffer, full_size + 4);
RemoveReadBufferBytes(full_size + 4, true);
// Check client build.
if(m_challenge.build > LogonServer::getSingleton().max_build ||
m_challenge.build < LogonServer::getSingleton().min_build)
{
SendChallengeError(CE_WRONG_BUILD_NUMBER);
return;
}
// Check for a possible IP ban on this client.
BAN_STATUS ipb = IPBanner::getSingleton().CalculateBanStatus(GetRemoteAddress());
switch(ipb)
{
case BAN_STATUS_PERMANANT_BAN:
SendChallengeError(CE_ACCOUNT_CLOSED);
return;
case BAN_STATUS_TIME_LEFT_ON_BAN:
SendChallengeError(CE_ACCOUNT_FREEZED);
return;
}
// Null-terminate the account string
m_challenge.I[m_challenge.I_len] = 0;
// Look up the account information
string AccountName = (char*)&m_challenge.I;
sLog.outDebug("[AuthChallenge] Account Name: \"%s\"", AccountName.c_str());
m_account = AccountMgr::getSingleton().GetAccount(AccountName);
if(m_account == 0)
{
sLog.outDebug("[AuthChallenge] Invalid account.");
// Non-existant account
SendChallengeError(CE_NO_ACCOUNT);
return;
}
sLog.outDebug("[AuthChallenge] Account banned state = %u", m_account->Banned);
// Check that the account isn't banned.
if(m_account->Banned == 1)
{
SendChallengeError(CE_ACCOUNT_CLOSED);
return;
}
else if(m_account->Banned > 0)
{
SendChallengeError(CE_ACCOUNT_FREEZED);
return;
}
Sha1Hash sha;
//uint32 tc = s.GetNumBytes();
sha.UpdateData( s.AsByteArray(), 32 );
sha.UpdateData( m_account->SrpHash, 20 );
sha.Finalize();
BigNumber x;
x.SetBinary( sha.GetDigest(), sha.GetLength() );
v = g.ModExp(x, N);
b.SetRand(152);
BigNumber gmod = g.ModExp(b, N);
B = ((v * 3) + gmod) % N;
ASSERT(gmod.GetNumBytes() <= 32);
BigNumber unk;
unk.SetRand(128);
uint8 response[200];
uint32 c = 0;
response[c] = 0; c += 1;
response[c] = 0; c += 1;
response[c] = CE_SUCCESS; c += 1;
memcpy(&response[c], B.AsByteArray(), 32); c += 32;
response[c] = 1; c += 1;
response[c] = g.AsByteArray()[0]; c += 1;
response[c] = 32; c += 1;
memcpy(&response[c], N.AsByteArray(), 32); c += 32;
memcpy(&response[c], s.AsByteArray(), s.GetNumBytes()); c += s.GetNumBytes();
memcpy(&response[c], unk.AsByteArray(), 16); c += 16;
response[c] = 0; c += 1;
Send(response, c);
}
