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otclient-master\modules\gamelib/protocollogin.lua

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-- @docclass

ProtocolLogin = extends(Protocol, "ProtocolLogin")

LoginServerError = 10

LoginServerTokenSuccess = 12

LoginServerTokenError = 13

LoginServerUpdate = 17

LoginServerMotd = 20

LoginServerUpdateNeeded = 30

LoginServerSessionKey = 40

LoginServerCharacterList = 100

LoginServerExtendedCharacterList = 101

-- Since 10.76

LoginServerRetry = 10

LoginServerErrorNew = 11

function ProtocolLogin:login(host, port, accountName, accountPassword, authenticatorToken, stayLogged)

if string.len(host) == 0 or port == nil or port == 0 then

signalcall(self.onLoginError, self, tr("You must enter a valid server address and port."))

return

end

self.accountName = accountName

self.accountPassword = accountPassword

self.authenticatorToken = authenticatorToken

self.stayLogged = stayLogged

self.connectCallback = self.sendLoginPacket

self:connect(host, port)

end

function ProtocolLogin:cancelLogin()

self:disconnect()

end

function ProtocolLogin:sendLoginPacket()

local msg = OutputMessage.create()

msg:addU8(ClientOpcodes.ClientEnterAccount)

msg:addU16(g_game.getOs())

msg:addU16(g_game.getProtocolVersion())

if g_game.getFeature(GameClientVersion) then

msg:addU32(g_game.getClientVersion())

end

if g_game.getFeature(GameContentRevision) then

msg:addU16(g_things.getContentRevision())

msg:addU16(0)

else

msg:addU32(g_things.getDatSignature())

end

msg:addU32(g_sprites.getSprSignature())

msg:addU32(PIC_SIGNATURE)

if g_game.getFeature(GamePreviewState) then

msg:addU8(0)

end

local offset = msg:getMessageSize()

if g_game.getFeature(GameLoginPacketEncryption) then

-- first RSA byte must be 0

msg:addU8(0)

-- xtea key

self:generateXteaKey()

local xteaKey = self:getXteaKey()

msg:addU32(xteaKey[1])

msg:addU32(xteaKey[2])

msg:addU32(xteaKey[3])

msg:addU32(xteaKey[4])

end

if g_game.getFeature(GameAccountNames) then

msg:addString(self.accountName)

else

msg:addU32(tonumber(self.accountName))

end

msg:addString(self.accountPassword)

if self.getLoginExtendedData then

local data = self:getLoginExtendedData()

msg:addString(data)

end

local paddingBytes = g_crypt.rsaGetSize() - (msg:getMessageSize() - offset)

assert(paddingBytes >= 0)

for i = 1, paddingBytes do

msg:addU8(math.random(0, 0xff))

end

if g_game.getFeature(GameLoginPacketEncryption) then

msg:encryptRsa()

end

if g_game.getFeature(GameOGLInformation) then

msg:addU8(1) --unknown

if g_game.getClientVersion() >= 1072 then

msg:addString(string.format('%s %s', g_graphics.getVendor(), g_graphics.getRenderer()))

else

msg:addString(g_graphics.getRenderer())

end

msg:addString(g_graphics.getVersion())

end

-- add RSA encrypted auth token

if g_game.getFeature(GameAuthenticator) then

offset = msg:getMessageSize()

-- first RSA byte must be 0

msg:addU8(0)

msg:addString(self.authenticatorToken)

if g_game.getFeature(GameSessionKey) then

msg:addU8(booleantonumber(self.stayLogged))

end

paddingBytes = g_crypt.rsaGetSize() - (msg:getMessageSize() - offset)

assert(paddingBytes >= 0)

for i = 1, paddingBytes do

msg:addU8(math.random(0, 0xff))

end

msg:encryptRsa()

end

if g_game.getFeature(GameProtocolChecksum) then

self:enableChecksum()

end

self:send(msg)

if g_game.getFeature(GameLoginPacketEncryption) then

self:enableXteaEncryption()

end

self:recv()

end

function ProtocolLogin:onConnect()

self.gotConnection = true

self:connectCallback()

self.connectCallback = nil

end

function ProtocolLogin:onRecv(msg)

while not msg:eof() do

local opcode = msg:getU8()

if opcode == LoginServerErrorNew then

self:parseError(msg)

elseif opcode == LoginServerError then

self:parseError(msg)

elseif opcode == LoginServerMotd then

self:parseMotd(msg)

elseif opcode == LoginServerUpdateNeeded then

signalcall(self.onLoginError, self, tr("Client needs update."))

elseif opcode == LoginServerTokenSuccess then

local unknown = msg:getU8()

elseif opcode == LoginServerTokenError then

-- TODO: prompt for token here

local unknown = msg:getU8()

signalcall(self.onLoginError, self, tr("Invalid authentification token."))

elseif opcode == LoginServerCharacterList then

self:parseCharacterList(msg)

elseif opcode == LoginServerExtendedCharacterList then

self:parseExtendedCharacterList(msg)

elseif opcode == LoginServerUpdate then

local signature = msg:getString()

signalcall(self.onUpdateNeeded, self, signature)

elseif opcode == LoginServerSessionKey then

self:parseSessionKey(msg)

else

self:parseOpcode(opcode, msg)

end

self:disconnect()

end

function ProtocolLogin:parseError(msg)

local errorMessage = msg:getString()

signalcall(self.onLoginError, self, errorMessage)

end

function ProtocolLogin:parseMotd(msg)

local motd = msg:getString()

signalcall(self.onMotd, self, motd)

end

function ProtocolLogin:parseSessionKey(msg)

local sessionKey = msg:getString()

signalcall(self.onSessionKey, self, sessionKey)

end

function ProtocolLogin:parseCharacterList(msg)

local characters = {}

if g_game.getClientVersion() > 1010 then

local worlds = {}

local worldsCount = msg:getU8()

for i=1, worldsCount do

local world = {}

local worldId = msg:getU8()

world.worldName = msg:getString()

world.worldIp = msg:getString()

world.worldIp = "127.0.0.1"

world.worldPort = msg:getU16()

world.previewState = msg:getU8()

worlds[worldId] = world

end

local charactersCount = msg:getU8()

for i=1, charactersCount do

local character = {}

local worldId = msg:getU8()

character.name = msg:getString()

character.worldName = worlds[worldId].worldName

character.worldIp = worlds[worldId].worldIp

character.worldIp = "127.0.0.1"

character.worldPort = worlds[worldId].worldPort

character.previewState = worlds[worldId].previewState

characters[i] = character

end

else

local charactersCount = msg:getU8()

for i=1,charactersCount do

local character = {}

character.name = msg:getString()

character.worldName = msg:getString()

character.worldIp = iptostring(msg:getU32())

character.worldIp = "127.0.0.1"

character.worldPort = msg:getU16()

if g_game.getFeature(GamePreviewState) then

character.previewState = msg:getU8()

end

characters[i] = character

end

local account = {}

if g_game.getProtocolVersion() > 1077 then

account.status = msg:getU8()

account.subStatus = msg:getU8()

account.premDays = msg:getU32()

if account.premDays ~= 0 and account.premDays ~= 65535 then

account.premDays = math.floor((account.premDays - os.time()) / 86400)

end

else

account.status = AccountStatus.Ok

account.premDays = msg:getU16()

account.subStatus = account.premDays > 0 and SubscriptionStatus.Premium or SubscriptionStatus.Free

end

signalcall(self.onCharacterList, self, characters, account)

end

function ProtocolLogin:parseExtendedCharacterList(msg)

local characters = msg:getTable()

local account = msg:getTable()

local otui = msg:getString()

signalcall(self.onCharacterList, self, characters, account, otui)

end

function ProtocolLogin:parseOpcode(opcode, msg)

signalcall(self.onOpcode, self, opcode, msg)

end

function ProtocolLogin:onError(msg, code)

local text = translateNetworkError(code, self:isConnecting(), msg)

signalcall(self.onLoginError, self, text)

end

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-- @docclass
ProtocolLogin = extends(Protocol, "ProtocolLogin")

LoginServerError = 10
LoginServerTokenSuccess = 12
LoginServerTokenError = 13
LoginServerUpdate = 17
LoginServerMotd = 20
LoginServerUpdateNeeded = 30
LoginServerSessionKey = 40
LoginServerCharacterList = 100
LoginServerExtendedCharacterList = 101

-- Since 10.76
LoginServerRetry = 10
LoginServerErrorNew = 11

function ProtocolLogin:login(host, port, accountName, accountPassword, authenticatorToken, stayLogged)
  if string.len(host) == 0 or port == nil or port == 0 then
    signalcall(self.onLoginError, self, tr("You must enter a valid server address and port."))
    return
  end

self.accountName = accountName
  self.accountPassword = accountPassword
  self.authenticatorToken = authenticatorToken
  self.stayLogged = stayLogged
  self.connectCallback = self.sendLoginPacket

self:connect(host, port)
end

function ProtocolLogin:cancelLogin()
  self:disconnect()
end

function ProtocolLogin:sendLoginPacket()
  local msg = OutputMessage.create()
  msg:addU8(ClientOpcodes.ClientEnterAccount)
  msg:addU16(g_game.getOs())

msg:addU16(g_game.getProtocolVersion())

if g_game.getFeature(GameClientVersion) then
    msg:addU32(g_game.getClientVersion())
  end

if g_game.getFeature(GameContentRevision) then
    msg:addU16(g_things.getContentRevision())
    msg:addU16(0)
  else
    msg:addU32(g_things.getDatSignature())
  end
  msg:addU32(g_sprites.getSprSignature())
  msg:addU32(PIC_SIGNATURE)

if g_game.getFeature(GamePreviewState) then
    msg:addU8(0)
  end

local offset = msg:getMessageSize()
  if g_game.getFeature(GameLoginPacketEncryption) then
    -- first RSA byte must be 0
    msg:addU8(0)

-- xtea key
    self:generateXteaKey()
    local xteaKey = self:getXteaKey()
    msg:addU32(xteaKey[1])
    msg:addU32(xteaKey[2])
    msg:addU32(xteaKey[3])
    msg:addU32(xteaKey[4])
  end

if g_game.getFeature(GameAccountNames) then
    msg:addString(self.accountName)
  else
    msg:addU32(tonumber(self.accountName))
  end

msg:addString(self.accountPassword)

if self.getLoginExtendedData then
    local data = self:getLoginExtendedData()
    msg:addString(data)
  end

local paddingBytes = g_crypt.rsaGetSize() - (msg:getMessageSize() - offset)
  assert(paddingBytes >= 0)
  for i = 1, paddingBytes do
    msg:addU8(math.random(0, 0xff))
  end

if g_game.getFeature(GameLoginPacketEncryption) then
    msg:encryptRsa()
  end

if g_game.getFeature(GameOGLInformation) then
    msg:addU8(1) --unknown
    msg:addU8(1) --unknown

if g_game.getClientVersion() >= 1072 then
      msg:addString(string.format('%s %s', g_graphics.getVendor(), g_graphics.getRenderer()))
    else
      msg:addString(g_graphics.getRenderer())
    end
    msg:addString(g_graphics.getVersion())
  end

-- add RSA encrypted auth token
  if g_game.getFeature(GameAuthenticator) then
    offset = msg:getMessageSize()

-- first RSA byte must be 0
    msg:addU8(0)
    msg:addString(self.authenticatorToken)

if g_game.getFeature(GameSessionKey) then
      msg:addU8(booleantonumber(self.stayLogged))
    end

paddingBytes = g_crypt.rsaGetSize() - (msg:getMessageSize() - offset)
    assert(paddingBytes >= 0)
    for i = 1, paddingBytes do
      msg:addU8(math.random(0, 0xff))
    end

msg:encryptRsa()
  end

if g_game.getFeature(GameProtocolChecksum) then
    self:enableChecksum()
  end

self:send(msg)
  if g_game.getFeature(GameLoginPacketEncryption) then
    self:enableXteaEncryption()
  end
  self:recv()
end

function ProtocolLogin:onConnect()
  self.gotConnection = true
  self:connectCallback()
  self.connectCallback = nil
end

function ProtocolLogin:onRecv(msg)
  while not msg:eof() do
    local opcode = msg:getU8()
    if opcode == LoginServerErrorNew then
      self:parseError(msg)
    elseif opcode == LoginServerError then
      self:parseError(msg)
    elseif opcode == LoginServerMotd then
      self:parseMotd(msg)
    elseif opcode == LoginServerUpdateNeeded then
      signalcall(self.onLoginError, self, tr("Client needs update."))
    elseif opcode == LoginServerTokenSuccess then
      local unknown = msg:getU8()
    elseif opcode == LoginServerTokenError then
      -- TODO: prompt for token here
      local unknown = msg:getU8()
      signalcall(self.onLoginError, self, tr("Invalid authentification token."))
    elseif opcode == LoginServerCharacterList then
      self:parseCharacterList(msg)
    elseif opcode == LoginServerExtendedCharacterList then
      self:parseExtendedCharacterList(msg)
    elseif opcode == LoginServerUpdate then
      local signature = msg:getString()
      signalcall(self.onUpdateNeeded, self, signature)
    elseif opcode == LoginServerSessionKey then
      self:parseSessionKey(msg)
    else
      self:parseOpcode(opcode, msg)
    end
  end
  self:disconnect()
end

function ProtocolLogin:parseError(msg)
  local errorMessage = msg:getString()
  signalcall(self.onLoginError, self, errorMessage)
end

function ProtocolLogin:parseMotd(msg)
  local motd = msg:getString()
  signalcall(self.onMotd, self, motd)
end

function ProtocolLogin:parseSessionKey(msg)
  local sessionKey = msg:getString()
  signalcall(self.onSessionKey, self, sessionKey)
end

function ProtocolLogin:parseCharacterList(msg)
  local characters = {}

if g_game.getClientVersion() > 1010 then
    local worlds = {}

local worldsCount = msg:getU8()
    for i=1, worldsCount do
      local world = {}
      local worldId = msg:getU8()
      world.worldName = msg:getString()
      world.worldIp = msg:getString()
      world.worldPort = msg:getU16()
      world.previewState = msg:getU8()
      worlds[worldId] = world
    end

local charactersCount = msg:getU8()
    for i=1, charactersCount do
      local character = {}
      local worldId = msg:getU8()
      character.name = msg:getString()
      character.worldName = worlds[worldId].worldName
      character.worldIp = worlds[worldId].worldIp
      character.worldPort = worlds[worldId].worldPort
      character.previewState = worlds[worldId].previewState
      characters[i] = character
    end

else
    local charactersCount = msg:getU8()
    for i=1,charactersCount do
      local character = {}
      character.name = msg:getString()
      character.worldName = msg:getString()
      character.worldIp = iptostring(msg:getU32())
      character.worldPort = msg:getU16()

if g_game.getFeature(GamePreviewState) then
        character.previewState = msg:getU8()
      end

characters[i] = character
    end
  end

local account = {}
  if g_game.getProtocolVersion() > 1077 then
    account.status = msg:getU8()
    account.subStatus = msg:getU8()

account.premDays = msg:getU32()
    if account.premDays ~= 0 and account.premDays ~= 65535 then
      account.premDays = math.floor((account.premDays - os.time()) / 86400)
    end
  else
    account.status = AccountStatus.Ok
    account.premDays = msg:getU16()
    account.subStatus = account.premDays > 0 and SubscriptionStatus.Premium or SubscriptionStatus.Free
  end

signalcall(self.onCharacterList, self, characters, account)
end

function ProtocolLogin:parseExtendedCharacterList(msg)
  local characters = msg:getTable()
  local account = msg:getTable()
  local otui = msg:getString()
  signalcall(self.onCharacterList, self, characters, account, otui)
end

function ProtocolLogin:parseOpcode(opcode, msg)
  signalcall(self.onOpcode, self, opcode, msg)
end

function ProtocolLogin:onError(msg, code)
  local text = translateNetworkError(code, self:isConnecting(), msg)
  signalcall(self.onLoginError, self, text)
end

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