176 lines
6.1 KiB

import time
import Queue
import socket
from debug import logger
from network.advanceddispatcher import AdvancedDispatcher
from network.bmproto import BMProtoError, BMProtoInsufficientDataError, BMProto
from network.bmobject import BMObject, BMObjectInsufficientPOWError, BMObjectInvalidDataError, BMObjectExpiredError, BMObjectInvalidError, BMObjectAlreadyHaveError
import network.asyncore_pollchoose as asyncore
from network.objectracker import ObjectTracker
from queues import objectProcessorQueue, UISignalQueue, receiveDataQueue
import state
import protocol
class UDPSocket(BMProto):
port = 8444
announceInterval = 60
def __init__(self, host=None, sock=None, announcing=False):
super(BMProto, self).__init__(sock=sock)
self.verackReceived = True
self.verackSent = True
# TODO sort out streams
self.streams = [1]
self.fullyEstablished = True
self.connectedAt = 0
self.skipUntil = 0
if sock is None:
if host is None:
host = ''
if ":" in host:
self.create_socket(socket.AF_INET6, socket.SOCK_DGRAM)
self.create_socket(socket.AF_INET, socket.SOCK_DGRAM)
self.set_socket_reuse()"Binding UDP socket to %s:%i", host, UDPSocket.port)
self.socket.bind((host, UDPSocket.port))
#BINDTODEVICE is only available on linux and requires root
#print "binding to %s" % (host)
#self.socket.setsockopt(socket.SOL_SOCKET, socket.SO_BINDTODEVICE, host)
#except AttributeError:
self.socket = sock
self.listening = state.Peer(self.socket.getsockname()[0], self.socket.getsockname()[1])
self.destination = state.Peer(self.socket.getsockname()[0], self.socket.getsockname()[1])
self.connecting = False
self.connected = True
self.announcing = announcing
self.set_state("bm_header", expectBytes=protocol.Header.size)
def set_socket_reuse(self):
self.socket.setsockopt(socket.SOL_SOCKET, socket.SO_BROADCAST, 1)
self.socket.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
self.socket.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEPORT, 1)
except AttributeError:
def state_bm_command(self):
# disable most commands before doing research / testing
# only addr (peer discovery), error and object are implemented
def bm_command_error(self):
return BMProto.bm_command_error(self)
def bm_command_getdata(self):
return True
# return BMProto.bm_command_getdata(self)
def bm_command_inv(self):
return True
# return BMProto.bm_command_inv(self)
def bm_command_object(self):
return BMProto.bm_command_object(self)
def bm_command_addr(self):
# BMProto.bm_command_object(self)
addresses = self._decode_addr()
# only allow peer discovery from private IPs in order to avoid attacks from random IPs on the internet
if not self.local:
return True
remoteport = False
for i in addresses:
seenTime, stream, services, ip, port = i
decodedIP = protocol.checkIPAddress(ip)
if stream not in state.streamsInWhichIAmParticipating:
if seenTime < time.time() - BMProto.maxTimeOffset or seenTime > time.time() + BMProto.maxTimeOffset:
if decodedIP is False:
# if the address isn't local, interpret it as the hosts' own announcement
remoteport = port
if remoteport is False:
return True
logger.debug("received peer discovery from %s:%i (port %i):",, self.destination.port, remoteport)
if self.local:
state.discoveredPeers[state.Peer(, remoteport)] = time.time()
return True
def bm_command_portcheck(self):
return True
def bm_command_ping(self):
return True
def bm_command_pong(self):
return True
def bm_command_verack(self):
return True
def bm_command_version(self):
return True
def handle_connect(self):
def writable(self):
return self.write_buf
def readable(self):
return len(self.read_buf) < AdvancedDispatcher._buf_len
def handle_read(self):
(recdata, addr) = self.socket.recvfrom(AdvancedDispatcher._buf_len)
except socket.error as e:
logger.error("socket error: %s", str(e))
self.destination = state.Peer(addr[0], addr[1])
encodedAddr = protocol.encodeHost(addr[0])
if protocol.checkIPAddress(encodedAddr, True):
self.local = True
self.local = False
# overwrite the old buffer to avoid mixing data and so that self.local works correctly
self.read_buf = recdata
def handle_write(self):
retval = self.socket.sendto(self.write_buf, ('<broadcast>', UDPSocket.port))
except socket.error as e:
logger.error("socket error on sendato: %s", str(e))
if __name__ == "__main__":
# initial fill
for host in (("", 8448),):
direct = BMConnection(host)
while len(asyncore.socket_map) > 0:
print "loop, state = %s" % (direct.state)
asyncore.loop(timeout=10, count=1)
proxy = Socks5BMConnection(host)
while len(asyncore.socket_map) > 0:
# print "loop, state = %s" % (proxy.state)
asyncore.loop(timeout=10, count=1)
proxy = Socks4aBMConnection(host)
while len(asyncore.socket_map) > 0:
# print "loop, state = %s" % (proxy.state)
asyncore.loop(timeout=10, count=1)