ProtocolLogin::ProtocolLogin()
{
enableChecksum();
}
void ProtocolGame::sendLoginPacket(uint challengeTimestamp, uint8 challengeRandom)
{
OutputMessagePtr msg(new OutputMessage);
msg->addU8(Proto::ClientPendingGame);
msg->addU16(g_game.getOs());
msg->addU16(g_game.getProtocolVersion());
if(g_game.getProtocolVersion() >= 971) {
msg->addU32(g_game.getClientVersion());
msg->addU8(0); // clientType
}
int offset = msg->getMessageSize();
msg->addU8(0); // first RSA byte must be 0
if(g_game.getProtocolVersion() >= 770)
{
// xtea key
generateXteaKey();
msg->addU32(m_xteaKey[0]);
msg->addU32(m_xteaKey[1]);
msg->addU32(m_xteaKey[2]);
msg->addU32(m_xteaKey[3]);
msg->addU8(0); // is gm set?
}
if(g_game.getFeature(Otc::GameAccountNames))
msg->addString(m_accountName);
else
msg->addU32(stdext::from_string<uint32>(m_accountName));
msg->addString(m_characterName);
msg->addString(m_accountPassword);
if(g_game.getFeature(Otc::GameChallengeOnLogin)) {
msg->addU32(challengeTimestamp);
msg->addU8(challengeRandom);
}
std::string extended = callLuaField<std::string>("getLoginExtendedData");
if(!extended.empty())
msg->addString(extended);
// complete the bytes for rsa encryption with zeros
int paddingBytes = g_crypt.rsaGetSize() - (msg->getMessageSize() - offset);
assert(paddingBytes >= 0);
msg->addPaddingBytes(paddingBytes);
// encrypt with RSA
if(g_game.getProtocolVersion() >= 770)
msg->encryptRsa();
if(g_game.getFeature(Otc::GameProtocolChecksum))
enableChecksum();
send(msg);
if(g_game.getProtocolVersion() >= 770)
enableXteaEncryption();
}
