protocol login working

modules/game/const.lua

@@ -31,3 +31,36 @@ NorthEast = 4
 SouthEast = 5
 SouthWest = 6
 NorthWest = 7
+
+ClientEnterAccount = 1
+ClientEnterGame = 10
+
+LoginServerError = 10
+LoginServerMotd = 20
+LoginServerUpdateNeeded = 30
+LoginServerCharacterList = 100
+
+GameExtendedOpcode = 0
+GameProtocolChecksum = 1
+GameAccountNames = 2
+GameChallangeOnLogin = 3
+GameStackposOnTileAddThing = 4
+GamePenalityOnDeath = 5
+GameNameOnNpcTrade = 6
+GameDoubleFreeCapacity = 7
+GameDoubleExperience = 8
+GameTotalCapacity = 9
+GameSkillsBase = 10
+GameAdditionalPlayerStats = 11
+GameIdOnCancelAttack = 12
+GameChannelPlayerList = 13
+GamePlayerMounts = 14
+GameEnvironmentEffect = 15
+GameCreatureType = 16
+GameCreatureAdditionalInfo = 17
+GameCreaturePassableInfo = 18
+GameItemAnimationPhase = 19
+GameTrucatedPingOpcode = 20
+GameReverseCreatureStack = 21
+
+OTSERV_RSA = "109120132967399429278860960508995541528237502902798129123468757937266291492576446330739696001110603907230888610072655818825358503429057592827629436413108566029093628212635953836686562675849720620786279431090218017681061521755056710823876476444260558147179707119674283982419152118103759076030616683978566631413"

modules/game/game.otmod

@@ -38,6 +38,8 @@ Module
 
     dofile 'const'
 
+    dofile 'protocollogin'
+
     dofile 'widgets/uigamemap'
     dofile 'widgets/uiitem'
     dofile 'widgets/uiminiwindow'

modules/game/protocollogin.lua

@@ -0,0 +1,121 @@
+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_thingsType.getSignature())
+  msg:addU32(g_sprites.getSignature())
+  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.", false)
+    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.", false)
+    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, false)
+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