cis-kuldeep/PyBitmessage-2021-04-27
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flake8 and style correction for network.udp

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This commit is contained in:
Dmitri Bogomolov 2018-10-19 11:50:46 +03:00
parent 625e83f4b4
commit 1c914d8cd8
Signed by untrusted user: g1itch
GPG Key ID: 720A756F18DEED13
1 changed files with 37 additions and 69 deletions
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106
src/network/udp.py
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@ -1,17 +1,13 @@
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
from bmproto import BMProto
from debug import logger
from objectracker import ObjectTracker
from queues import receiveDataQueue
class UDPSocket(BMProto):
port = 8444
@ -29,23 +25,18 @@ class UDPSocket(BMProto):
if sock is None:
if host is None:
host = ''
if ":" in host:
self.create_socket(socket.AF_INET6, socket.SOCK_DGRAM)
else:
self.create_socket(socket.AF_INET, socket.SOCK_DGRAM)
self.create_socket(
socket.AF_INET6 if ":" in host else socket.AF_INET,
socket.SOCK_DGRAM
)
self.set_socket_reuse()
logger.info("Binding UDP socket to %s:%i", host, UDPSocket.port)
self.socket.bind((host, UDPSocket.port))
#BINDTODEVICE is only available on linux and requires root
#try:
#print "binding to %s" % (host)
#self.socket.setsockopt(socket.SOL_SOCKET, socket.SO_BINDTODEVICE, host)
#except AttributeError:
logger.info("Binding UDP socket to %s:%i", host, self.port)
self.socket.bind((host, self.port))
else:
self.socket = sock
self.set_socket_reuse()
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.listening = state.Peer(*self.socket.getsockname())
self.destination = state.Peer(*self.socket.getsockname())
ObjectTracker.__init__(self)
self.connecting = False
self.connected = True
@ -60,48 +51,44 @@ class UDPSocket(BMProto):
except AttributeError:
pass
def state_bm_command(self):
return BMProto.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)
return True
def bm_command_inv(self):
return True
# return BMProto.bm_command_inv(self)
def bm_command_object(self):
return BMProto.bm_command_object(self)
return True
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
# 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
for seenTime, stream, services, ip, port in addresses:
decodedIP = protocol.checkIPAddress(str(ip))
if stream not in state.streamsInWhichIAmParticipating:
continue
if seenTime < time.time() - BMProto.maxTimeOffset or seenTime > time.time() + BMProto.maxTimeOffset:
if (seenTime < time.time() - self.maxTimeOffset or
seenTime > time.time() + self.maxTimeOffset):
continue
if decodedIP is False:
# if the address isn't local, interpret it as the hosts' own announcement
# if the address isn't local, interpret it as
# the host's own announcement
remoteport = port
if remoteport is False:
return True
logger.debug("received peer discovery from %s:%i (port %i):", self.destination.host, self.destination.port, remoteport)
logger.debug(
"received peer discovery from %s:%i (port %i):",
self.destination.host, self.destination.port, remoteport)
if self.local:
state.discoveredPeers[state.Peer(self.destination.host, remoteport)] = time.time()
state.discoveredPeers[
state.Peer(self.destination.host, remoteport)
] = time.time()
return True
def bm_command_portcheck(self):
@ -126,51 +113,32 @@ class UDPSocket(BMProto):
return self.write_buf
def readable(self):
return len(self.read_buf) < AdvancedDispatcher._buf_len
return len(self.read_buf) < self._buf_len
def handle_read(self):
try:
(recdata, addr) = self.socket.recvfrom(AdvancedDispatcher._buf_len)
(recdata, addr) = self.socket.recvfrom(self._buf_len)
except socket.error as e:
logger.error("socket error: %s", str(e))
logger.error("socket error: %s", e)
return
self.destination = state.Peer(addr[0], addr[1])
self.destination = state.Peer(*addr)
encodedAddr = protocol.encodeHost(addr[0])
if protocol.checkIPAddress(encodedAddr, True):
self.local = True
else:
self.local = False
# overwrite the old buffer to avoid mixing data and so that self.local works correctly
# overwrite the old buffer to avoid mixing data and so that
# self.local works correctly
self.read_buf[0:] = recdata
self.bm_proto_reset()
receiveDataQueue.put(self.listening)
def handle_write(self):
try:
retval = self.socket.sendto(self.write_buf, ('<broadcast>', UDPSocket.port))
retval = self.socket.sendto(
self.write_buf, ('<broadcast>', self.port))
except socket.error as e:
logger.error("socket error on sendato: %s", str(e))
logger.error("socket error on sendato: %s", e)
retval = 0
self.slice_write_buf(retval)
if __name__ == "__main__":
# initial fill
for host in (("127.0.0.1", 8448),):
direct = BMConnection(host)
while len(asyncore.socket_map) > 0:
print "loop, state = %s" % (direct.state)
asyncore.loop(timeout=10, count=1)
continue
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)