class Led(Plugin):
implements(ITelldusLiveObserver)
def __init__(self):
self.gpio = Gpio(self.context)
self.live = TelldusLive(self.context)
self.gpio.initPin('status:red')
self.gpio.initPin('status:green')
self.setNetworkLed()
def liveConnected(self):
self.setNetworkLed()
def liveRegistered(self, __msg, __refreshRequired):
self.setNetworkLed()
def liveDisconnected(self):
self.setNetworkLed()
def setNetworkLed(self):
if self.live.isRegistered():
# We check live status first since we might have connection on another network interface
self.gpio.setPin('status:red', 0)
self.gpio.setPin('status:green', 1, brightness=50)
return
if self.live.isConnected():
self.gpio.setPin('status:red', 0)
self.gpio.setPin('status:green', 1, brightness=50, freq=1)
return
if Led.__getIp(Board.networkInterface()) is None:
self.gpio.setPin('status:red', 1, freq=1)
self.gpio.setPin('status:green', 0)
return
self.gpio.setPin('status:red', 1, brightness=50)
self.gpio.setPin('status:green', 0)
@staticmethod
def __getIp(iface):
sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
sockfd = sock.fileno()
SIOCGIFADDR = 0x8915 # pylint:disable=C0103
ifreq = struct.pack('16sH14s', str(iface), socket.AF_INET, '\x00' * 14)
try:
res = fcntl.ioctl(sockfd, SIOCGIFADDR, ifreq)
except Exception as __error:
return None
ipAddr = struct.unpack('16sH2x4s8x', res)[2]
return socket.inet_ntoa(ipAddr)
