tibia-client/modules/game/protocollogin.lua

123 lines
3.3 KiB
Lua

-- @docclass
ProtocolLogin = extends(Protocol)
-- private functions
local function sendLoginPacket(protocol)
local msg = OutputMessage.create()
msg:addU8(ClientEnterAccount)
msg:addU16(1) -- todo: ClientOs
msg:addU16(g_game.getClientVersion())
msg:addU32(g_things.getDatSignature())
msg:addU32(g_sprites.getSprSignature())
msg:addU32(0) -- todo: pic signature
local paddingBytes = 128
msg:addU8(0) -- first RSA byte must be 0
paddingBytes = paddingBytes - 1
-- xtea key
protocol:generateXteaKey()
local xteaKey = protocol:getXteaKey()
msg:addU32(xteaKey[1])
msg:addU32(xteaKey[2])
msg:addU32(xteaKey[3])
msg:addU32(xteaKey[4])
paddingBytes = paddingBytes - 16
if g_game.getFeature(GameProtocolChecksum) then
protocol:enableChecksum()
end
if g_game.getFeature(GameAccountNames) then
msg:addString(protocol.accountName)
msg:addString(protocol.accountPassword)
paddingBytes = paddingBytes - (4 + string.len(protocol.accountName) + string.len(protocol.accountPassword))
else
msg:addU32(tonumber(protocol.accountName))
msg:addString(protocol.accountPassword)
paddingBytes = paddingBytes - (6 + string.len(protocol.accountPassword))
end
msg:addPaddingBytes(paddingBytes, 0)
msg:encryptRSA(128, OTSERV_RSA) -- todo: check whether to use cip or ot rsa
protocol:send(msg)
protocol:enableXteaEncryption()
protocol:recv()
end
-- events
function ProtocolLogin:onConnect()
self:connectCallback(self)
end
function ProtocolLogin:onRecv(msg)
while not msg:eof() do
local opcode = msg:getU8()
if opcode == LoginServerError then
self:parseError(msg)
elseif opcode == LoginServerMotd then
self:parseMotd(msg)
elseif opcode == LoginServerUpdateNeeded then
signalcall(self.onError, self, "Client needs update.")
elseif opcode == LoginServerCharacterList then
self:parseCharacterList(msg)
else
self:parseOpcode(opcode, msg)
end
end
self:disconnect()
end
-- public functions
function ProtocolLogin.create()
return ProtocolLogin.internalCreate()
end
function ProtocolLogin:login(host, port, accountName, accountPassword)
if string.len(accountName) == 0 or string.len(accountPassword) == 0 then
signalcall(self.onError, self, "You must enter an account name and password.")
return
end
self.accountName = accountName
self.accountPassword = accountPassword
self.connectCallback = sendLoginPacket
self:connect(host, port)
end
function ProtocolLogin:cancelLogin()
self:disconnect()
end
function ProtocolLogin:parseError(msg)
local errorMessage = msg:getString()
signalcall(self.onError, self, errorMessage)
end
function ProtocolLogin:parseMotd(msg)
local motd = msg:getString()
signalcall(self.onMotd, self, motd)
end
function ProtocolLogin:parseCharacterList(msg)
local characters = {}
local charactersCount = msg:getU8()
for i=1,charactersCount do
local character = {}
character[1] = msg:getString()
character[2] = msg:getString()
character[3] = iptostring(msg:getU32())
character[4] = msg:getU16()
characters[i] = character
end
local premDays = msg:getU16()
signalcall(self.onCharacterList, self, characters, premDays)
end
function ProtocolLogin:parseOpcode(opcode, msg)
signalcall(self.onOpcode, self, opcode, msg)
end