Python socket.recvfrom() Examples
The following are 7
code examples of socket.recvfrom().
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Example #1
Source File: dhcp.py From python_dhcp_server with MIT License | 6 votes |
def update(self, timeout = 0): try: reads = select.select([self.socket], [], [], timeout)[0] except ValueError: # ValueError: file descriptor cannot be a negative integer (-1) return for socket in reads: try: packet = ReadBootProtocolPacket(*socket.recvfrom(4096)) except OSError: # OSError: [WinError 10038] An operation was attempted on something that is not a socket pass else: self.received(packet) for transaction_id, transaction in list(self.transactions.items()): if transaction.is_done(): transaction.close() self.transactions.pop(transaction_id)
Example #2
Source File: xiaomihub.py From aqara-mqtt with Apache License 2.0 | 6 votes |
def _send_socket(self, cmd, rtnCmd, ip, port): socket = self._socket try: _LOGGER.debug('Sending to GW {0}'.format(cmd)) self._read_unwanted_data() socket.settimeout(30.0) socket.sendto(cmd.encode(), (ip, port)) socket.settimeout(30.0) data, addr = socket.recvfrom(1024) if len(data) is not None: resp = json.loads(data.decode()) _LOGGER.debug('Recieved from GW {0}'.format(resp)) if resp["cmd"] == rtnCmd: return resp else: _LOGGER.error("Response from {0} does not match return cmd".format(ip)) _LOGGER.error(data) else: _LOGGER.error("No response from Gateway") except socket.timeout: _LOGGER.error("Cannot connect to Gateway") socket.close()
Example #3
Source File: xiaomihub.py From aqara-mqtt with Apache License 2.0 | 6 votes |
def _listen_to_msg(self): while self._listening: if self._mcastsocket is not None: data, addr = self._mcastsocket.recvfrom(self.SOCKET_BUFSIZE) try: data = json.loads(data.decode("ascii")) cmd = data['cmd'] _LOGGER.debug(format(data)) if cmd == 'heartbeat' and data['model'] == 'gateway': self.GATEWAY_TOKEN = data['token'] elif cmd == 'report' or cmd == 'heartbeat': self._queue.put(data) else: _LOGGER.error('Unknown multicast data : {0}'.format(data)) except Exception as e: raise _LOGGER.error('Cannot process multicast message : {0}'.format(data))
Example #4
Source File: sockets.py From Doga with MIT License | 5 votes |
def capture(self, sock): """ Capture packets in traffic param: sock(socket._socketobject): raw socket that listen for traffic """ while True: # socket.recvfrom() method returns tuple object packet_tuple = sock.recvfrom(65565) packet_str = packet_tuple[0] self.packet_parser.parse(self.ip, packet_str)
Example #5
Source File: controller.py From TobiiGlassesPyController with GNU General Public License v3.0 | 5 votes |
def __discover_device__(self): if TOBII_DISCOVERY_ALLOWED == False: logging.error("Device discovery is not available due to a missing dependency (netifaces)") exit(1) logging.debug("Looking for a Tobii Pro Glasses 2 device ...") MULTICAST_ADDR = 'ff02::1' PORT = 13006 for i in netifaces.interfaces(): if netifaces.AF_INET6 in netifaces.ifaddresses(i).keys(): if "%" in netifaces.ifaddresses(i)[netifaces.AF_INET6][0]['addr']: if_name = netifaces.ifaddresses(i)[netifaces.AF_INET6][0]['addr'].split("%")[1] if_idx = socket.getaddrinfo(MULTICAST_ADDR + "%" + if_name, PORT, socket.AF_INET6, socket.SOCK_DGRAM)[0][4][3] s6 = socket.socket(socket.AF_INET6, socket.SOCK_DGRAM) s6.settimeout(30.0) s6.setsockopt(socket.IPPROTO_IPV6, socket.IPV6_MULTICAST_IF, if_idx) s6.bind(('::', PORT)) PORT_OUT = PORT if sys.platform == 'win32' or sys.platform == 'darwin' else PORT + 1 try: discover_json = '{"type":"discover"}' s6.sendto(discover_json.encode('utf-8'), (MULTICAST_ADDR, PORT_OUT)) logging.debug("Discover request sent to %s on interface %s " % ( str((MULTICAST_ADDR, PORT_OUT)),if_name) ) logging.debug("Waiting for a reponse from the device ...") data, address = s6.recvfrom(1024) jdata = json.loads(data.decode('utf-8')) logging.debug("From: " + address[0] + " " + str(data)) logging.debug("Tobii Pro Glasses found with address: [%s]" % address[0]) addr = address[0] if sys.version_info.major == 3 and sys.version_info.minor >= 8: addr = address[0] + '%' + if_name return (jdata, addr) except: logging.debug("No device found on interface %s" % if_name) logging.debug("The discovery process did not find any device!") return (None, None)
Example #6
Source File: controller.py From TobiiGlassesPyController with GNU General Public License v3.0 | 5 votes |
def __grab_data__(self, socket): time.sleep(1) while self.streaming: try: data, address = socket.recvfrom(1024) jdata = json.loads(data.decode('utf-8')) self.__refresh_data__(jdata) except socket.timeout: logging.error("A timeout occurred while receiving data") self.streaming = False
Example #7
Source File: client_demo.py From SCUTTLE with MIT License | 5 votes |
def get(items): try: message = json.dumps(items).encode('utf-8') # Take requested data and convert to bytes socket.sendto(message, (network.ip,network.port)) # Send data to server data, ip = socket.recvfrom(4000) # Wait for response, create 4000 byte buffer to store response. data = json.loads(data) # Take response and convert from bytes to string data = dict(zip(items, data)) # Combine request list with respose list to create dictionary return data # Return data except Exception as e: print(e) return 1