)
self.buffer = self.buffer[framestart:]
# At this point, buffer starts with a packet
- frameend = self.buffer.find(b"\r\n", 4)
+ if len(self.buffer) < 6: # no len and proto - cannot proceed
+ break
+ exp_end = self.buffer[2] + 3 # Expect '\r\n' here
+ frameend = 0
+ # Length field can legitimeely be much less than the
+ # length of the packet (e.g. WiFi positioning), but
+ # it _should not_ be greater. Still sometimes it is.
+ # Luckily, not by too much: by maybe two or three bytes?
+ # Do this embarrassing hack to avoid accidental match
+ # of some binary data in the packet against '\r\n'.
+ while True:
+ frameend = self.buffer.find(b"\r\n", frameend)
+ if frameend >= (exp_end - 3): # Found realistic match
+ break
if frameend == -1: # Incomplete frame, return what we have
break
packet = self.buffer[2:frameend]
elif fl & zmq.POLLIN:
received = clients.recv(sk)
if received is None:
- log.debug(
- "Terminal gone from fd %d (IMEI %s)", sk, imei
- )
+ log.debug("Terminal gone from fd %d", sk)
tostop.append(sk)
else:
for imei, when, peeraddr, packet in received: