def packet_handler_0x03_redirect(self, packet):
address = packet.read(4)
port = packet.read_uint16()
packet.read_byte() # remaining
seed = packet.read_byte()
key = packet.read_string8()
name = packet.read_string8()
id = packet.read_uint32()
self.crypto = Crypto(seed, key, name)
address.reverse()
address = ".".join([str(octet) for octet in address])
self.disconnect()
self.connect(address, port)
self.client_ordinal = 0
x10 = ClientPacket(0x10)
x10.write_byte(seed)
x10.write_string8(key)
x10.write_string8(name)
x10.write_uint32(id)
x10.write_byte(0x00)
self.send(x10)
if self.server == LoginServer:
self.connected_to_login()
def packet_handler_0x00_encryption(self, packet):
code = packet.read_byte()
if code == 1:
self.da_version -= 1
print("Invalid DA version, possibly too high. "
"Trying again with {0}.".format(self.da_version))
self.reconnect()
return
elif code == 2:
version = packet.read_int16()
packet.read_byte()
packet.read_string8() # patch url
self.da_version = version
print("Your DA version is too low. "
"Setting DA version to {0}.".format(version))
self.reconnect()
return
packet.read_uint32() # server table crc
seed = packet.read_byte()
key = packet.read_string8()
self.crypto = Crypto(seed, key)
x57 = ClientPacket(0x57)
x57.write_uint32(0)
self.send(x57)
def packet_handler_0x03_redirect(self, packet):
address = packet.read(4)
port = packet.read_uint16()
packet.read_byte() # remaining
seed = packet.read_byte()
key = packet.read_string8()
name = packet.read_string8()
id = packet.read_uint32()
self.crypto = Crypto(seed, key, name)
address.reverse()
address = ".".join([str(octet) for octet in address])
self.disconnect()
self.connect(address, port)
self.client_ordinal = 0
x10 = ClientPacket(0x10)
x10.write_byte(seed)
x10.write_string8(key)
x10.write_string8(name)
x10.write_uint32(id)
x10.write_byte(0x00)
self.send(x10)
if self.server == LoginServer:
self.connected_to_login()
def packet_handler_0x00_encryption(self, packet):
code = packet.read_byte()
if code == 1:
self.da_version -= 1
print("Invalid DA version, possibly too high. "
"Trying again with {0}.".format(self.da_version))
self.reconnect()
return
elif code == 2:
version = packet.read_int16()
packet.read_byte()
packet.read_string8() # patch url
self.da_version = version
print("Your DA version is too low. "
"Setting DA version to {0}.".format(version))
self.reconnect()
return
packet.read_uint32() # server table crc
seed = packet.read_byte()
key = packet.read_string8()
self.crypto = Crypto(seed, key)
x57 = ClientPacket(0x57)
x57.write_uint32(0)
self.send(x57)
def log_in(self):
print("Logging in as {0}... ".format(self.username))
key_1 = random.randint(0, 0xFF)
key_2 = random.randint(0, 0xFF)
client_id = random.randint(0, 0xFFFFFFFF)
client_id_key = uint8(key_2 + 138)
client_id_array = [
client_id & 0x0FF, (client_id >> 8) & 0x0FF,
(client_id >> 16) & 0x0FF, (client_id >> 24) & 0x0FF
]
hash = NexonCRC16.calculate(client_id_array, 0, 4)
client_id_checksum = uint16(hash)
client_id_checksum_key = uint8(key_2 + 0x5E)
client_id_checksum ^= uint16(client_id_checksum_key
| ((client_id_checksum_key + 1) << 8))
client_id ^= uint32(client_id_key | ((client_id_key + 1) << 8)
| ((client_id_key + 2) << 16)
| ((client_id_key + 3) << 24))
random_val = random.randint(0, 0xFFFF)
random_val_key = uint8(key_2 + 115)
random_val ^= uint32(random_val_key | ((random_val_key + 1) << 8)
| ((random_val_key + 2) << 16)
| ((random_val_key + 3) << 24))
x03 = ClientPacket(0x03)
x03.write_string8(self.username)
x03.write_string8(self.password)
x03.write_byte(key_1)
x03.write_byte(uint8(key_2 ^ (key_1 + 59)))
x03.write_uint32(client_id)
x03.write_uint16(client_id_checksum)
x03.write_uint32(random_val)
crc = NexonCRC16.calculate(x03.data,
len(self.username) + len(self.password) + 2,
12)
crc_key = uint8(key_2 + 165)
crc ^= uint16(crc_key | (crc_key + 1) << 8)
x03.write_uint16(crc)
x03.write_uint16(0x0100)
self.send(x03)
def log_in(self):
print("Logging in as {0}... ".format(self.username))
key_1 = random.randint(0, 0xFF)
key_2 = random.randint(0, 0xFF)
client_id = random.randint(0, 0xFFFFFFFF)
client_id_key = uint8(key_2 + 138)
client_id_array = [
client_id & 0x0FF,
(client_id >> 8) & 0x0FF,
(client_id >> 16) & 0x0FF,
(client_id >> 24) & 0x0FF]
hash = NexonCRC16.calculate(client_id_array, 0, 4)
client_id_checksum = uint16(hash)
client_id_checksum_key = uint8(key_2 + 0x5E)
client_id_checksum ^= uint16(client_id_checksum_key | ((client_id_checksum_key + 1) << 8))
client_id ^= uint32(client_id_key | ((client_id_key + 1) << 8) | ((client_id_key + 2) << 16) | ((client_id_key + 3) << 24))
random_val = random.randint(0, 0xFFFF)
random_val_key = uint8(key_2 + 115)
random_val ^= uint32(random_val_key | ((random_val_key + 1) << 8) | ((random_val_key + 2) << 16) | ((random_val_key + 3) << 24))
x03 = ClientPacket(0x03)
x03.write_string8(self.username)
x03.write_string8(self.password)
x03.write_byte(key_1)
x03.write_byte(uint8(key_2 ^ (key_1 + 59)))
x03.write_uint32(client_id)
x03.write_uint16(client_id_checksum)
x03.write_uint32(random_val)
crc = NexonCRC16.calculate(x03.data, len(self.username) + len(self.password) + 2, 12)
crc_key = uint8(key_2 + 165)
crc ^= uint16(crc_key | (crc_key + 1) << 8)
x03.write_uint16(crc)
x03.write_uint16(0x0100)
self.send(x03)