class Tracker(object):
track_dict = {}
def __init__(self, port):
self.track_dict['this'] = ['localhost', port, 0]
self.p = PunchObject("")
self.s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
self.s.bind(('0.0.0.0', self.track_dict['this'][1]))
def send(self, s, addr):
b = s
if isinstance(s, str):
b = s.encode('utf-8')
self.s.sendto(b, addr)
def recv(self, recv_len=1024):
(data,addr) = self.s.recvfrom(recv_len)
data = data.decode('utf-8')
return data, addr
def listen(self):
while 1:
(data,addr)= self.recv()
data = data.split(',')
session_name = data[0]
offset = data[1]
self.track_dict[session_name] = [addr[0], int(addr[1]), int(offset)]
msg = self.p.compose('JSON', json.dumps(self.track_dict))
self.send( msg, addr)
print(self.track_dict)
def send_request(self, server_ip, server_port, offset):
self.SERVER_PORT = server_port
self.SERVER_IP = server_ip
self.s.sendto("%s,%d" % (self.session_name, offset) , (server_ip, server_port))
data,addr=self.s.recvfrom(1024)
self.dat = PunchObject(data)
if self.dat.JSON:
self.track_dict = json.loads(data[1:])
class Tracker(object):
track_dict = {"this": ["localhost", 60000, 0]}
def __init__(self):
self.p = PunchObject("")
self.s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
self.s.bind(("0.0.0.0", self.track_dict["this"][1]))
def listen(self):
while 1:
(data, addr) = self.s.recvfrom(1024)
data = data.split(",")
session_name = data[0]
offset = data[1]
self.track_dict[session_name] = [addr[0], int(addr[1]), int(offset)]
msg = self.p.compose("JSON", json.dumps(self.track_dict))
self.s.sendto(msg, addr)
print self.track_dict
def __init__(self, port):
self.track_dict['this'] = ['localhost', port, 0]
self.p = PunchObject("")
self.s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
self.s.bind(('0.0.0.0', self.track_dict['this'][1]))
class Endpoint(object):
track_dict = {}
session_name = []
SERVER_PORT = 60000
SERVER_IP = '192.43.193.103'
def __init__(self, session_name):
self.session_name=session_name
self.s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
self.s.setblocking(0)
self.s.settimeout(5)
self.rand = random.SystemRandom()
prt = self.rand.randint(20000,20005)
self.s.bind(('0.0.0.0', prt))
print "bound to port ", prt
def send_request(self, server_ip, server_port, offset):
self.SERVER_PORT = server_port
self.SERVER_IP = server_ip
self.s.sendto("%s,%d" % (self.session_name, offset) , (server_ip, server_port))
data,addr=self.s.recvfrom(1024)
self.dat = PunchObject(data)
if self.dat.JSON:
self.track_dict = json.loads(data[1:])
def connect_endpoint(self, remote_name):
"""connect to another endpoint"""
acc = 0.5 #TODO: implement sleep "growth"
print self.track_dict
connected = False
synned = False
remote_offset = None
my_pub_offset = None
syn_time=0
ack_time=0
self.dat = PunchObject("")
for count in xrange(550):
print "versuch %s" % count,
r,w,x = select([self.s], [self.s], [], 0)
if w:
if count%4==0:
if my_pub_offset!=None:
self.send_request(self.SERVER_IP, self.SERVER_PORT, my_pub_offset)
else:
self.send_request(self.SERVER_IP, self.SERVER_PORT, 0)
r_addr = self.track_dict[remote_name]
r_offset = r_addr[2]
r_addr = r_addr[0], r_addr[1]
print "addr update"
if connected:
print "send msg"
self.s.sendto(self.dat.compose('MSG', "%s offsetted msg: %s has public offset: %s" % (count, self.session_name, my_pub_offset)), (r_addr[0], r_addr[1]+remote_offset))
print r_addr[1]+remote_offset
mx = (5 + r_offset + count*2)%65536
mn = (r_offset)%65536-count-5
if mn>mx:
mn = mx+1
if remote_offset==None:# and not connected:
print "probing offset in range: ", mn+r_addr[1], mx+r_addr[1]
for i in range(mn,mx):
#if count<20#if my_pub_offset == None or remote_offset==None:
if i!=my_pub_offset:
if not self.dat.SYN and not self.dat.ACK or my_pub_offset != None:
msg = self.dat.compose('SYN', "%s %s,%s"%(count, self.session_name, i) )#SYN mit offset
self.s.sendto(msg, (r_addr[0], r_addr[1]+i))
syn_time = time.time()
if self.dat.SYN:
for i in range(mn,mx):
if i!=my_pub_offset:
msg = self.dat.compose('ACK',"%s %s,%s" % (count, self.session_name, my_pub_offset) )
self.s.sendto(msg, (r_addr[0], r_addr[1]+i))
if r:
data,addr=self.s.recvfrom(1024)
print "data: ", data
self.dat = PunchObject(data)
if self.dat.MSG:
num_nomsg = 0
print str(self.dat)
elif self.dat.SYN:
print "recvd SYN ", str(self.dat)
if my_pub_offset == None and not self.session_name in data[1:]:
my_pub_offset = int(data[1:].split(",")[-1])
synned = True
elif self.dat.ACK:
str_ro = data[1:].split(",")[-1]
if str_ro != "None":
remote_offset = int(str_ro)
ack_time = time.time()-syn_time
print "recvd ACK ", str(self.dat), ack_time
if synned:
connected = True
print "Connected."
elif self.dat.JSON:
self.track_dict = json.loads(data[1:])
else:
num_nomsg += 1
time.sleep(acc)
def connect_endpoint(self, remote_name):
"""connect to another endpoint"""
acc = 0.5 #TODO: implement sleep "growth"
print self.track_dict
connected = False
synned = False
remote_offset = None
my_pub_offset = None
syn_time=0
ack_time=0
self.dat = PunchObject("")
for count in xrange(550):
print "versuch %s" % count,
r,w,x = select([self.s], [self.s], [], 0)
if w:
if count%4==0:
if my_pub_offset!=None:
self.send_request(self.SERVER_IP, self.SERVER_PORT, my_pub_offset)
else:
self.send_request(self.SERVER_IP, self.SERVER_PORT, 0)
r_addr = self.track_dict[remote_name]
r_offset = r_addr[2]
r_addr = r_addr[0], r_addr[1]
print "addr update"
if connected:
print "send msg"
self.s.sendto(self.dat.compose('MSG', "%s offsetted msg: %s has public offset: %s" % (count, self.session_name, my_pub_offset)), (r_addr[0], r_addr[1]+remote_offset))
print r_addr[1]+remote_offset
mx = (5 + r_offset + count*2)%65536
mn = (r_offset)%65536-count-5
if mn>mx:
mn = mx+1
if remote_offset==None:# and not connected:
print "probing offset in range: ", mn+r_addr[1], mx+r_addr[1]
for i in range(mn,mx):
#if count<20#if my_pub_offset == None or remote_offset==None:
if i!=my_pub_offset:
if not self.dat.SYN and not self.dat.ACK or my_pub_offset != None:
msg = self.dat.compose('SYN', "%s %s,%s"%(count, self.session_name, i) )#SYN mit offset
self.s.sendto(msg, (r_addr[0], r_addr[1]+i))
syn_time = time.time()
if self.dat.SYN:
for i in range(mn,mx):
if i!=my_pub_offset:
msg = self.dat.compose('ACK',"%s %s,%s" % (count, self.session_name, my_pub_offset) )
self.s.sendto(msg, (r_addr[0], r_addr[1]+i))
if r:
data,addr=self.s.recvfrom(1024)
print "data: ", data
self.dat = PunchObject(data)
if self.dat.MSG:
num_nomsg = 0
print str(self.dat)
elif self.dat.SYN:
print "recvd SYN ", str(self.dat)
if my_pub_offset == None and not self.session_name in data[1:]:
my_pub_offset = int(data[1:].split(",")[-1])
synned = True
elif self.dat.ACK:
str_ro = data[1:].split(",")[-1]
if str_ro != "None":
remote_offset = int(str_ro)
ack_time = time.time()-syn_time
print "recvd ACK ", str(self.dat), ack_time
if synned:
connected = True
print "Connected."
elif self.dat.JSON:
self.track_dict = json.loads(data[1:])
else:
num_nomsg += 1
time.sleep(acc)
def __init__(self):
self.p = PunchObject("")
self.s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
self.s.bind(("0.0.0.0", self.track_dict["this"][1]))
def connect_endpoint(self, remote_name):
t = 0
while t < 999999:
if self.track_dict.get(remote_name):
break
time.sleep(1)
t += 1
if t > 30:
raise Exception(f'{remote_name} not registed')
"""connect to another endpoint"""
acc = 0.5 #TODO: implement sleep "growth"
print(self.track_dict)
connected = False
synned = False
remote_offset = None
my_pub_offset = None
syn_time=0
ack_time=0
self.dat = PunchObject("")
for count in range(550):
print("versuch %s" % count)
r,w,x = select([self.s], [self.s], [], 0)
if w:
r_addr = self.track_dict.get(remote_name)
r_addr = r_addr[0], r_addr[1]
print("addr update",r_addr)
if connected:
print("send msg to", r_addr)
msg = self.dat.compose('MSG', "%s offsetted msg: %s has public offset: %s" % (count, self.session_name, my_pub_offset))
self.send(msg, r_addr)
print('send :', msg)
if not self.dat.SYN and not self.dat.ACK:
msg = self.dat.compose('SYN', "%s %s,%s"%(count, self.session_name, 0) )#SYN mit offset
self.send(msg, r_addr)
print('No:send :', msg)
syn_time = time.time()
if self.dat.SYN:
msg = self.dat.compose('ACK',"%s %s,%s" % \
(count, self.session_name, 0) )
self.send(msg, r_addr)
print('SYNed:send :', msg)
if r:
data,addr=self.recv()
print("data: ", data)
self.dat = PunchObject(data)
if self.dat.MSG:
num_nomsg = 0
print(str(self.dat), ':', addr)
elif self.dat.SYN:
print("recvd SYN ", str(self.dat), ':', addr)
synned = True
elif self.dat.ACK:
ack_time = time.time()-syn_time
print("recvd ACK ", str(self.dat), ack_time, ':', addr)
if synned:
connected = True
print("Connected.", remote_name, ':', addr)
self.p2plist[remote_name] = addr
elif self.dat.JSON:
self.track_dict = json.loads(data[1:])
else:
num_nomsg += 1
time.sleep(acc)
def send_request(self, offset):
self.send("%s,%d" % (self.session_name, offset) , self.env.server_addr())
data,addr=self.recv()
self.dat = PunchObject(data)
if self.dat.JSON:
self.track_dict = json.loads(data[1:])
class Endpoint(object):
track_dict = {}
session_name = []
def __init__(self, env, session_name):
self.env = env
self.session_name=session_name
self.s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
self.s.setblocking(0)
self.s.settimeout(5)
self.rand = random.SystemRandom()
prt = self.rand.randint(20000,20005)
self.s.bind(('0.0.0.0', prt))
print("bound to port ", prt)
self.p2plist = {}
self.heartbeat()
def heartbeat(self):
self.heartbeat = True
self.hb_time = 5
def hb():
while self.heartbeat:
self.send_request(0)
time.sleep(self.hb_time)
b = Background(hb)
b.start()
def send(self, s, addr):
b = s
if isinstance(s,bytes):
b = s
elif isinstance(s,str):
b = s.encode('utf-8')
else:
b = json.dumps(s)
self.s.sendto(b,addr)
def recv(self, recv_len=1024):
data, addr = self.s.recvfrom(recv_len)
data = data.decode('utf-8')
return data, addr
def send_request(self, offset):
self.send("%s,%d" % (self.session_name, offset) , self.env.server_addr())
data,addr=self.recv()
self.dat = PunchObject(data)
if self.dat.JSON:
self.track_dict = json.loads(data[1:])
def connect_endpoint(self, remote_name):
t = 0
while t < 999999:
if self.track_dict.get(remote_name):
break
time.sleep(1)
t += 1
if t > 30:
raise Exception(f'{remote_name} not registed')
"""connect to another endpoint"""
acc = 0.5 #TODO: implement sleep "growth"
print(self.track_dict)
connected = False
synned = False
remote_offset = None
my_pub_offset = None
syn_time=0
ack_time=0
self.dat = PunchObject("")
for count in range(550):
print("versuch %s" % count)
r,w,x = select([self.s], [self.s], [], 0)
if w:
r_addr = self.track_dict.get(remote_name)
r_addr = r_addr[0], r_addr[1]
print("addr update",r_addr)
if connected:
print("send msg to", r_addr)
msg = self.dat.compose('MSG', "%s offsetted msg: %s has public offset: %s" % (count, self.session_name, my_pub_offset))
self.send(msg, r_addr)
print('send :', msg)
if not self.dat.SYN and not self.dat.ACK:
msg = self.dat.compose('SYN', "%s %s,%s"%(count, self.session_name, 0) )#SYN mit offset
self.send(msg, r_addr)
print('No:send :', msg)
syn_time = time.time()
if self.dat.SYN:
msg = self.dat.compose('ACK',"%s %s,%s" % \
(count, self.session_name, 0) )
self.send(msg, r_addr)
print('SYNed:send :', msg)
if r:
data,addr=self.recv()
print("data: ", data)
self.dat = PunchObject(data)
if self.dat.MSG:
num_nomsg = 0
print(str(self.dat), ':', addr)
elif self.dat.SYN:
print("recvd SYN ", str(self.dat), ':', addr)
synned = True
elif self.dat.ACK:
ack_time = time.time()-syn_time
print("recvd ACK ", str(self.dat), ack_time, ':', addr)
if synned:
connected = True
print("Connected.", remote_name, ':', addr)
self.p2plist[remote_name] = addr
elif self.dat.JSON:
self.track_dict = json.loads(data[1:])
else:
num_nomsg += 1
time.sleep(acc)