def data_received(self, data):
""" Handles any data received from the network.
Receives data, parses them into a command and passes it
to the command handler.
:param data: bytes of data
"""
# try to decode as utf-8, ignore any erroneous characters
self.buffer += data.decode('utf-8', 'ignore')
if len(self.buffer) > 8192:
self.client.disconnect()
for msg in self.get_messages():
if len(msg) < 2:
self.client.disconnect()
return
# general netcode structure is not great
if msg[0] in ('#', '3', '4'):
if msg[0] == '#':
msg = msg[1:]
spl = msg.split('#', 1)
msg = '#'.join([fanta_decrypt(spl[0])] + spl[1:])
logger.log_debug('[INC][RAW]{}'.format(msg), self.client)
try:
cmd, *args = msg.split('#')
self.net_cmd_dispatcher[cmd](self, args)
except KeyError:
return
def data_received(self, data):
""" Handles any data received from the network.
Receives data, parses them into a command and passes it
to the command handler.
:param data: bytes of data
"""
buf = data
if buf is None:
buf = b''
# try to decode as utf-8, ignore any erroneous characters
self.buffer += buf.decode('utf-8', 'ignore')
self.buffer = self.buffer.translate({ord(c): None for c in '\0'})
if len(self.buffer) > 8192:
msg = self.buffer if len(
self.buffer) < 512 else self.buffer[:512] + '...'
logger.log_server(
'Terminated {} (packet too long): sent {} ({} bytes)'.format(
self.client.get_ipreal(), msg, len(self.buffer)))
self.client.disconnect()
return
found_message = False
for msg in self.get_messages():
found_message = True
if len(msg) < 2:
# This immediatelly kills any client that does not even try to follow the proper
# client protocol
msg = self.buffer if len(
self.buffer) < 512 else self.buffer[:512] + '...'
logger.log_server(
'Terminated {} (packet too short): sent {} ({} bytes)'.
format(self.client.get_ipreal(), msg, len(self.buffer)))
self.client.disconnect()
return
# general netcode structure is not great
if msg[0] in ('#', '3', '4'):
if msg[0] == '#':
msg = msg[1:]
spl = msg.split('#', 1)
msg = '#'.join([fanta_decrypt(spl[0])] + spl[1:])
logger.log_debug('[INC][RAW]{}'.format(msg), self.client)
try:
# print(f'> {self.client.id}: {msg}')
cmd, *args = msg.split('#')
self.net_cmd_dispatcher[cmd](self, args)
except Exception as ex:
self.server.send_error_report(self.client, cmd, args, ex)
if not found_message:
# This immediatelly kills any client that does not even try to follow the proper
# client protocol
msg = self.buffer if len(
self.buffer) < 512 else self.buffer[:512] + '...'
logger.log_server(
'Terminated {} (packet syntax unrecognized): sent {} ({} bytes)'
.format(self.client.get_ipreal(), msg, len(self.buffer)))
self.client.disconnect()
def data_received(self, data):
"""Handles any data received from the network.
Receives data, parses them into a command and passes it
to the command handler.
:param data: bytes of data
"""
buf = data
ipid = self.client.ipid
if buf is None:
buf = b''
if not isinstance(buf, str):
# try to decode as utf-8, ignore any erroneous characters
self.buffer += buf.decode('utf-8', 'ignore')
else:
self.buffer = buf
self.buffer = self.buffer.translate({ord(c): None for c in '\0'})
if len(self.buffer) > 8192:
self.client.disconnect()
try:
for msg in self.get_messages():
if len(msg) < 2:
continue
# general netcode structure is not great
if msg[0] in ('#', '3', '4'):
if msg[0] == '#':
msg = msg[1:]
spl = msg.split('#', 1)
msg = '#'.join([fanta_decrypt(spl[0])] + spl[1:])
try:
cmd, *args = msg.split('#')
self.net_cmd_dispatcher[cmd](self, args)
if cmd != 'CH':
self.client.last_pkt_time = time()
except KeyError:
logger_debug.debug(
f'Unknown incoming message from {ipid}: {msg}')
if not self.client.is_checked:
raise ProtocolError
except ProtocolError:
self.client.disconnect()
def data_received(self, data):
""" Handles any data received from the network.
Receives data, parses them into a command and passes it
to the command handler.
:param data: bytes of data
"""
buf = data
if not self.client.is_checked and self.server.ban_manager.is_banned(
self.client.ipid):
self.client.transport.close()
else:
self.client.is_checked = True
if buf is None:
buf = b''
if not isinstance(buf, str):
# try to decode as utf-8, ignore any erroneous characters
self.buffer += buf.decode('utf-8', 'ignore')
else:
self.buffer = buf
if len(self.buffer) > 8192:
self.client.disconnect()
for msg in self.get_messages():
if len(msg) < 2:
continue
# general netcode structure is not great
if msg[0] in ('#', '3', '4'):
if msg[0] == '#':
msg = msg[1:]
spl = msg.split('#', 1)
msg = '#'.join([fanta_decrypt(spl[0])] + spl[1:])
logger.log_debug('[INC][RAW]{}'.format(msg), self.client)
try:
cmd, *args = msg.split('#')
self.net_cmd_dispatcher[cmd](self, args)
except KeyError:
logger.log_debug('[INC][UNK]{}'.format(msg), self.client)
def data_received(self, data):
""" Handles any data received from the network.
Receives data, parses them into a command and passes it
to the command handler.
:param data: bytes of data
"""
buf = data
if buf is None:
buf = b''
# try to decode as utf-8, ignore any erroneous characters
self.buffer += buf.decode('utf-8', 'ignore')
self.buffer = self.buffer.translate({ord(c): None for c in '\0'})
if len(self.buffer) > 8192:
self.client.disconnect()
found_message = False
for msg in self.get_messages():
found_message = True
if len(msg) < 2:
self.client.disconnect()
return
# general netcode structure is not great
if msg[0] in ('#', '3', '4'):
if msg[0] == '#':
msg = msg[1:]
spl = msg.split('#', 1)
msg = '#'.join([fanta_decrypt(spl[0])] + spl[1:])
logger.log_debug('[INC][RAW]{}'.format(msg), self.client)
try:
cmd, *args = msg.split('#')
self.net_cmd_dispatcher[cmd](self, args)
except Exception as ex:
self.server.send_error_report(self.client, cmd, args, ex)
if not found_message:
# This immediatelly kills webAO or any client that does not even try to follow the
# standalone client protocol
self.client.disconnect()
def data_received(self, data):
""" Handles any data received from the network.
Receives data, parses them into a command and passes it
to the command handler.
:param data: bytes of data
"""
buf = data
if buf is None:
buf = b''
# try to decode as utf-8, ignore any erroneous characters
self.buffer += buf.decode('utf-8', 'ignore')
self.buffer = self.buffer.translate({ord(c): None for c in '\0'})
if len(self.buffer) > 8192:
msg = self.buffer if len(self.buffer) < 512 else self.buffer[:512] + '...'
logger.log_server('Terminated {} (packet too long): sent {} ({} bytes)'
.format(self.client.get_ipreal(), msg, len(self.buffer)))
self.client.disconnect()
return
found_message = False
for msg in self.get_messages():
found_message = True
if len(msg) < 2:
# This immediatelly kills any client that does not even try to follow the proper
# client protocol
msg = self.buffer if len(self.buffer) < 512 else self.buffer[:512] + '...'
logger.log_server('Terminated {} (packet too short): sent {} ({} bytes)'
.format(self.client.get_ipreal(), msg, len(self.buffer)))
self.client.disconnect()
return
# general netcode structure is not great
if msg[0] in ('#', '3', '4'):
if msg[0] == '#':
msg = msg[1:]
raw_parameters = msg.split('#')
raw_parameters[0] = fanta_decrypt(raw_parameters[0])
msg = '#'.join(raw_parameters)
logger.log_debug('[INC][RAW]{}'.format(msg), self.client)
try:
if self.server.print_packets:
print(f'> {self.client.id}: {msg}')
self.server.log_packet(self.client, msg, True)
# Decode AO clients' encoding
cmd, *args = Constants.decode_ao_packet(msg.split('#'))
try:
dispatched = self.net_cmd_dispatcher[cmd]
except KeyError:
logger.log_pserver(f'Client {self.client.id} sent abnormal packet {msg} '
f'(client version: {self.client.version}).')
else:
dispatched(self, args)
except AOProtocolError.InvalidInboundPacketArguments:
pass
except Exception as ex:
self.server.send_error_report(self.client, cmd, args, ex)
if not found_message:
# This immediatelly kills any client that does not even try to follow the proper
# client protocol
msg = self.buffer if len(self.buffer) < 512 else self.buffer[:512] + '...'
logger.log_server('Terminated {} (packet syntax unrecognized): sent {} ({} bytes)'
.format(self.client.get_ipreal(), msg, len(self.buffer)))
self.client.disconnect()
def data_received(self, data):
""" Handles any data received from the network.
Receives data, parses them into a command and passes it
to the command handler.
:param data: bytes of data
"""
# try to decode as utf-8, ignore any erroneous characters
self.buffer += data.decode('utf-8', 'ignore')
if len(self.buffer) > 8192:
self.client.disconnect()
for msg in self.get_messages():
if len(msg) < 2:
self.client.disconnect()
return
# general netcode structure is not great
if msg[0] in ('#', '3', '4'):
if msg[0] == '#':
msg = msg[1:]
spl = msg.split('#', 1)
msg = '#'.join([fanta_decrypt(spl[0])] + spl[1:])
logger.log_debug('[INC][RAW]{}'.format(msg), self.client)
try:
cmd, *args = msg.split('#')
self.net_cmd_dispatcher[cmd](self, args)
except Exception as ex:
# Send basic logging information to user
info = '=========\nThe server ran into a Python issue. Please contact the server owner and send them the following logging information:'
etype, evalue, etraceback = sys.exc_info()
tb = traceback.extract_tb(tb=etraceback)
current_time = asctime(localtime(time()))
file, line_num, module, func = tb[-1]
file = file[file.rfind('\\') +
1:] # Remove unnecessary directories
info += '\r\n*Server time: {}'.format(current_time)
info += '\r\n*Packet details: {} {}'.format(cmd, args)
info += '\r\n*Client status: {}, {}, {}'.format(
self.client.id, self.client.get_char_name(),
self.client.is_staff())
info += '\r\n*Area status: {}, {}'.format(
self.client.area.id, len(self.client.area.clients))
info += '\r\n*File: {}'.format(file)
info += '\r\n*Line number: {}'.format(line_num)
info += '\r\n*Module: {}'.format(module)
info += '\r\n*Function: {}'.format(func)
info += '\r\n*Error: {}: {}'.format(type(ex).__name__, ex)
info += '\r\nYour help would be much appreciated.'
info += '\r\n========='
self.client.send_host_message(info)
# Print complete traceback to console
info = 'TSUSERVER HAS ENCOUNTERED AN ERROR HANDLING A CLIENT PACKET'
info += '\r\n*Server time: {}'.format(current_time)
info += '\r\n*Packet details: {} {}'.format(cmd, args)
info += '\r\n*Client status: {}, {}, {}'.format(
self.client.id, self.client.get_char_name(),
self.client.is_staff())
info += '\r\n*Area status: {}, {}'.format(
self.client.area.id, len(self.client.area.clients))
logger.log_print(info)
traceback.print_exception(etype, evalue, etraceback)
def test_fanta_decrypt():
assert fanta_decrypt("4D90") == "MS"
