def send_message(self, message):
if not self.is_running:
raise Exception("Client cannot connect to IPC server. Not running.")
socket = QLocalSocket(self)
socket.connectToServer(self.socket_filename, QIODevice.WriteOnly)
if not socket.waitForConnected(self.timeout):
raise Exception(str(socket.errorString()))
socket.write(pickle.dumps(message))
if not socket.waitForBytesWritten(self.timeout):
raise Exception(str(socket.errorString()))
socket.disconnectFromServer()
def send_message(self, message):
if not self.is_running:
raise Exception(
"Client cannot connect to IPC server. Not running.")
socket = QLocalSocket(self)
socket.connectToServer(self.socket_filename, QIODevice.WriteOnly)
if not socket.waitForConnected(self.timeout):
raise Exception(str(socket.errorString()))
socket.write(pickle.dumps(message))
if not socket.waitForBytesWritten(self.timeout):
raise Exception(str(socket.errorString()))
socket.disconnectFromServer()
class DoorbotGUI(QWidget, Ui_BotGUI):
def __init__(self):
QWidget.__init__(self)
self.setupUi(self)
self.accessDialog = AccessDialog(self)
self.accessDialog.hide()
self.dispatchTable = {
'time' : self.respTime,
'schedule' : self.respSchedule,
'bulletin' : self.respBulletin,
'readstatus' : self.respReadStatus,
'access' : self.respAccess
}
self.timer = QTimer()
self.timer.timeout.connect(self.tick)
self.timer.start(1000)
self.reconnectTimer = QTimer()
self.reconnectTimer.timeout.connect(self.onReconnect)
self.reconnectTimer.stop()
self.socket = QLocalSocket()
self.socket.connected.connect(self.onConnect)
self.socket.disconnected.connect(self.onDisconnect)
self.socket.readyRead.connect(self.onReadyRead)
self.socket.error.connect(self.onError)
self.socket.connectToServer('doorbotgui')
self.setCursor(Qt.BlankCursor)
self.showFullScreen()
self.show()
def tick(self):
pass
def onReconnect(self):
self.reconnectTimer.stop()
self.labelHealth.setText('Reconnecting to backend.')
self.socket.connectToServer('doorbotgui')
def onConnect(self):
self.labelHealth.setText('Connected to backend.')
def onDisconnect(self):
self.labelHealth.setText('Disconnected from backend.')
self.reconnectTimer.start(2000)
def onError(self, err):
self.labelHealth.setText('Backend connect error ' + self.socket.errorString() + '.' )
self.reconnectTimer.start(2000)
def onReadyRead(self):
while self.socket.canReadLine():
rx = self.socket.readLine(2048).decode('utf-8')
try:
pkt = json.loads(rx)
print(pkt)
cmd = pkt['cmd']
if cmd in self.dispatchTable:
self.dispatchTable[cmd](pkt)
except ValueError:
print('could not decode json')
except:
print('could not dispatch: %s', sys.exc_info())
def respTime(self, pkt):
self.labelTime.setText(pkt['time'])
def respSchedule(self, pkt):
desc = pkt['description']
self.labelSchedule.setText(desc)
def respBulletin(self, pkt):
source = pkt['source']
self.textBrowser.setSource(QUrl(source))
self.textBrowser.reload()
def respReadStatus(self, pkt):
status = pkt['status']
if status == 'Status.INIT':
statusText = 'Initializing System.'
elif status == 'Status.READY':
statusText = 'Please scan your tag below.'
elif status == 'Status.READING':
statusText = 'Reading tag...'
elif status == 'Status.DENIED':
statusText = 'Access denied.'
elif status == 'Status.ALLOWED' or status == 'Status.LATCHED':
statusText = 'Access granted.'
elif status == 'Status.UNKNOWN':
statusText = 'Tag not recognized.'
elif status == 'Status.ERROR':
statusText = 'An unexpected error has occurred. Contact [email protected].'
else:
statusText = 'Unexpected status: %s' % status
self.labelReadStatus.setText(statusText)
def respAccess(self, pkt):
result = pkt['result']
member = pkt['member']
self.accessDialog.memberAccess(result, member)
class DoorbotGUI(QWidget, Ui_BotGUI):
def __init__(self):
QWidget.__init__(self)
self.setupUi(self)
self.accessDialog = AccessDialog(self)
self.accessDialog.hide()
self.dispatchTable = {
'time': self.respTime,
'schedule': self.respSchedule,
'bulletin': self.respBulletin,
'readstatus': self.respReadStatus,
'access': self.respAccess
}
self.timer = QTimer()
self.timer.timeout.connect(self.tick)
self.timer.start(1000)
self.reconnectTimer = QTimer()
self.reconnectTimer.timeout.connect(self.onReconnect)
self.reconnectTimer.stop()
self.socket = QLocalSocket()
self.socket.connected.connect(self.onConnect)
self.socket.disconnected.connect(self.onDisconnect)
self.socket.readyRead.connect(self.onReadyRead)
self.socket.error.connect(self.onError)
self.socket.connectToServer('doorbotgui')
self.setCursor(Qt.BlankCursor)
self.showFullScreen()
self.show()
def tick(self):
pass
def onReconnect(self):
self.reconnectTimer.stop()
self.labelHealth.setText('Reconnecting to backend.')
self.socket.connectToServer('doorbotgui')
def onConnect(self):
self.labelHealth.setText('Connected to backend.')
def onDisconnect(self):
self.labelHealth.setText('Disconnected from backend.')
self.reconnectTimer.start(2000)
def onError(self, err):
self.labelHealth.setText('Backend connect error ' +
self.socket.errorString() + '.')
self.reconnectTimer.start(2000)
def onReadyRead(self):
while self.socket.canReadLine():
rx = self.socket.readLine(2048).decode('utf-8')
try:
pkt = json.loads(rx)
print(pkt)
cmd = pkt['cmd']
if cmd in self.dispatchTable:
self.dispatchTable[cmd](pkt)
except ValueError:
print('could not decode json')
except:
print('could not dispatch: %s', sys.exc_info())
def respTime(self, pkt):
self.labelTime.setText(pkt['time'])
def respSchedule(self, pkt):
desc = pkt['description']
self.labelSchedule.setText(desc)
def respBulletin(self, pkt):
source = pkt['source']
self.textBrowser.setSource(QUrl(source))
self.textBrowser.reload()
def respReadStatus(self, pkt):
status = pkt['status']
if status == 'Status.INIT':
statusText = 'Initializing System.'
elif status == 'Status.READY':
statusText = 'Please scan your tag below.'
elif status == 'Status.READING':
statusText = 'Reading tag...'
elif status == 'Status.DENIED':
statusText = 'Access denied.'
elif status == 'Status.ALLOWED' or status == 'Status.LATCHED':
statusText = 'Access granted.'
elif status == 'Status.UNKNOWN':
statusText = 'Tag not recognized.'
elif status == 'Status.ERROR':
statusText = 'An unexpected error has occurred. Contact [email protected].'
else:
statusText = 'Unexpected status: %s' % status
self.labelReadStatus.setText(statusText)
def respAccess(self, pkt):
result = pkt['result']
member = pkt['member']
self.accessDialog.memberAccess(result, member)