def __check_command_frame(self, guest, frame):
try:
if (frame[0] == BC_BEGIN_COMMAND):
console.bc(frame[0], who=guest.who)
index = 1
while (frame[index] != BC_END_COMMAND):
console.bc(frame[index], who=guest.who)
if (frame[index] == BC_ERROR):
console.warn("command frame aborted", who=guest.who)
return
#elif (frame[index] == BC.):
else:
console.warn("invalid balise in command frame",
who=who)
return
console.bc(frame[index], who=guest.who)
return
else:
raise IndexError
except IndexError:
console.warn("bad frame construction from {0}:{1}".format(
contact[0], contact[1]),
who=who)
return
def __command(self, guest, frame):
contact = ("".join(["{0}.".format(guest.ip[x])])[:-1],
255 * udpPyPort[0] + udpPyPort[1])
try:
if (frame[0] == BC_BEGIN_COMMAND):
console.bc(frame[0], who=guest.who)
index = 1
while (frame[index] != BC_END_COMMAND):
console.bc(frame[index], who=guest.who)
if (frame[index] == BC_ERROR):
console.warn("command frame aborted", who=guest.who)
return
#elif (frame[index] == BC.):
else:
console.warn("invalid balise in command frame",
who=who)
return
console.bc(frame[index], who=guest.who)
return
else:
raise IndexError
except IndexError:
console.warn("bad frame construction from {0}:{1}".format(
contact[0], contact[1]),
who=who)
return
def __received_frame(self, frame, contact):
valid = False
who = "{0}-newGuest".format(self.user[0])
console.print("new connexion from {0}:{1}".format(
contact[0], contact[1]),
who=who)
try:
if (frame[0] == BC_BEGIN_IDENTITY):
console.bc(frame[0], who=who)
index = 1
while (frame[index] != BC_END_IDENTITY):
console.bc(frame[index], who=who)
if (frame[index] == BC_ERROR):
console.warn("identity frame aborted", who=who)
valid = False
return
elif (frame[index] == BC_RECEIVED_ENODE):
index += 1
newGuest.enodeB = frame[index:index + 70]
if (contact[0] != newGuest.ip()):
console.warn("guest's ip doesn't match", who=who)
valid = False
return
index += 70
#
#
#
valid = True
else:
valid = False
console.warn("invalid balise in identity frame",
who=who)
return
console.bc(frame[index], who=who)
index += 1
if (valid):
#
#
#
console.print("identity completed", who=who)
return
else:
console.warn("incomplete identity", who=who)
return
else:
raise IndexError
except IndexError:
console.warn("bad frame construction from {0}:{1}".format(
contact[0], contact[1]),
who=who)
return
def __check_identity_frame(self, frame, contact):
valid = False
newGuest = Guest(self.user[0])
newGuest.udpContact = contact
console.print("new connexion from {0}:{1}".format(
contact[0], contact[1]),
who=newGuest.who)
try:
if (frame[0] == BC_BEGIN_IDENTITY):
console.bc(frame[0], who=newGuest.who)
index = 1
while (frame[index] != BC_END_IDENTITY):
console.bc(frame[index], who=newGuest.who)
if (frame[index] == BC_ERROR):
console.warn("identity frame aborted",
who=newGuest.who)
valid = False
return -1, []
elif (frame[index] == BC_RECEIVED_ENODE):
index += 1
newGuest.enodeB = frame[index:index + 70]
if (contact[0] != newGuest.ip()):
console.warn("guest's ip doesn't match",
who=newGuest.who)
valid = False
return -1, []
index += 70
valid = True
elif (frame[index] == BC_RECEIVED_ADDRESS):
index += 1
newGuest.addressB = frame[index:index + 20]
index += 20
else:
valid = False
console.warn("invalid balise in identity frame",
who=newGuest.who)
return -1, []
console.bc(frame[index], who=newGuest.who)
index += 1
if (valid and newGuest.update()):
n = self.__guest_exist(newGuest)
if (n == -1):
self.guests.append(newGuest)
n = len(self.guests) - 1
else:
self.guests[n] = newGuest
console.print("identity completed", who=newGuest.who)
return n, frame[index:]
else:
console.warn("incomplete identity", who=newGuest.who)
return -1, []
else:
raise IndexError
except IndexError:
console.warn("bad frame construction from {0}:{1}".format(
contact[0], contact[1]),
who=newGuest.who)
return -1, []
def __identity(self, frame, contact):
valid = False
newGuest = Guest(self.username)
console.print("new connexion from {0}:{1}".format(
contact[0], contact[1]),
who=newGuest.who)
try:
if (frame[0] == BC_BEGIN_IDENTITY):
console.bc(frame[0], who=newGuest.who)
index = 1
while (frame[index] != BC_END_IDENTITY):
console.bc(frame[index], who=newGuest.who)
if (frame[index] == BC_ERROR):
console.warn("identity frame aborted",
who=newGuest.who)
valid = False
return -1, []
elif (frame[index] == BC_IDENTITY_USER):
index += 1
newGuest.guestType = "user"
newGuest.enode = frame[index:index + 70]
if ([int(contact[0].split('.')[x])
for x in range(4)] != newGuest.enode[64:68]):
console.warn("guest's ip doesn't match",
who=newGuest.who)
valid = False
return -1, []
index += 70
valid = True
elif (frame[index] == BC_IDENTITY_TRACKER):
index += 1
newGuest.guestType = "tracker"
#
# code
#
valid = True
console.error("not implemented")
return -1, []
else:
valid = False
console.warn("invalid balise in identity frame",
who=newGuest.who)
return -1, []
console.bc(frame[index], who=newGuest.who)
index += 1
if valid:
newGuest.udpPyPort = list(contact[1].to_bytes(
2, byteorder='big'))
newGuest.update()
n = self.__guest_exist(newGuest)
if (n == -1):
self.guests.append(newGuest)
n = len(self.guests) - 1
console.print("identity completed", who=newGuest.who)
return n, frame[index:]
else:
console.warn("incomplete identity", who=newGuest.who)
return -1, []
else:
raise IndexError
except IndexError:
console.warn("bad frame construction from {0}:{1}".format(
contact[0], contact[1]),
who=newGuest.who)
return -1, []