184 lines
7.8 KiB
Python
184 lines
7.8 KiB
Python
import threading
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import socketserver
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import socket
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import traceback
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from time import sleep, time
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import json
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import struct
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class ThreadedUDPServer(threading.Thread):
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def __init__(self,effectController,rgbStripController):
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threading.Thread.__init__(self)
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self.effectController = effectController
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self.rgbStripController = rgbStripController
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self.daemon = True
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self.stopped = False
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self.start()
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self.udpClientGuardian = self.UDPClientGuardian()
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self.udpClientGuardian.start()
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UDPClients
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def run(self):
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self.server = socketserver.UDPServer(('', 8002), UDPStripHandler)
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self.server.effectController = self.effectController
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self.server.rgbStripController = self.rgbStripController
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self.server.serve_forever()
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print("ThreadedUDPServer stopped")
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def stop(self):
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self.udpClientGuardian.stop()
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self.server.shutdown()
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# check last pings from clients, responds with pong and remove clients
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# when there is no answer after 2 seconds
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class UDPClientGuardian(threading.Thread):
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def __init__(self):
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threading.Thread.__init__(self)
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self.stopped = False
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def run(self):
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while not self.stopped:
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for key in list(UDPClients.keys()):
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if UDPClients[key].lastping + 2 < time():
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UDPClients[key].handleClose()
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del UDPClients[key]
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sleep(0.5)
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def stop(self):
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self.stopped = True
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CLIENT_TYPE_CONTROLLER = 0
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CLIENT_TYPE_STRIPE = 1
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CLIENT_TYPE_RECORDER = 2
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UDPClients = {}
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class UDPStripHandler(socketserver.BaseRequestHandler):
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def handle(self):
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#print(self.client_address)
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if self.client_address not in UDPClients:
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UDPClients[self.client_address] = UDPClient(self.client_address,self.server.effectController,self.server.rgbStripController)
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UDPClients[self.client_address].handle(self.request)
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class UDPClient():
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def __init__(self,client_address,effectController,rgbStripController):
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self.client_type = None
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self.rgbStrip = None
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self.socket = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
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self.client_address = client_address
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self.effectController = effectController
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self.rgbStripController = rgbStripController
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self.sendToClientLock = False
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self.lastping = time()
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def handle(self,request):
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clientdata = request[0].decode()
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self.socket = request[1]
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#print(time(),"{} wrote:".format(self.client_address))
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#print(time(),"clientdata -> ", clientdata)
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# socket.sendto(bytes("pong","utf-8"),self.client_address)
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try:
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data = clientdata.split(':')
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#print(data)
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#r:1:srg strip name
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if data[0] == "r" and int(data[1]) == CLIENT_TYPE_STRIPE and data[2] != None:
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self.client_type = CLIENT_TYPE_STRIPE
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# registers the strip with websocket object and name. the onRGBStripValueUpdate(rgbStrip) is called by
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# by the rgbStrip when an effectThread updates it
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# the self.rgbStrip variable is used to unregister the strip only
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self.rgbStrip = self.rgbStripController.registerRGBStrip(data[2],self.onRGBStripValueUpdate)
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#s:ping
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if data[0] == "s" and data[1] == "ping":
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# if we got a ping and the client has no client type defined, send status unregistered, so the client knows that he has to register
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if self.client_type is None and self.socket is not None:
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self.sendToClient('s:unregistered')
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self.lastping = time()
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except Exception as e:
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print(e, traceback.format_exc())
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# unregister the onChangeHandler
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# for now this function is not called when a client times out,
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# so they don't get unregistered. i mean there is no function that
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# is called when a client times out.
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def handleClose(self):
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if self.client_type is CLIENT_TYPE_STRIPE:
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self.rgbStripController.unregisterRGBStrip(self.rgbStrip)
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#print(self.client_address, 'closed')
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# when a rgbStrip value is changed, send json data to client
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def onRGBStripValueUpdate(self,rgbStrip,led = 0):
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self.sendToClient('d:'+str(led)+':'+str(rgbStrip.red[led])+':'+str(rgbStrip.green[led])+':'+str(rgbStrip.blue[led])+'')
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def sendToClient(self,message):
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while self.sendToClientLock is True:
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sleep(1)
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self.sendToClientLock = True
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if self.socket is not None:
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self.socket.sendto(
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message.encode(), self.client_address
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)
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self.sendToClientLock = False
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# class UDPStripHandler:
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# def __init__(self):
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# #the rgbStrip object returned by the
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# self.rgbStrip = None
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# # last ping command from the client
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# self.lastPing = 0
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# def handleMessage(self):
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# try:
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# print(self.address, self.data)
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# data = json.loads(self.data)
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# # Client Registration on the Websocket Server
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# # maybe it would be better to use a websocket server thread for each client type,
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# # can be done in future if there is too much latency
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# if "register_client_type" in data:
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# # the controler type, add handler on RGBStripContoller and send the current state of the controller
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# if int(data['register_client_type']) is CLIENT_TYPE_CONTROLLER:
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# self.client_type = CLIENT_TYPE_CONTROLLER
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# # add effectController onControllerChangeHandler to get changes in the effectController eg start/stop effects, parameter updates, moved strips
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# # register rgbStripController onRGBStripRegistered/UnRegistered handler to get noticed about new rgbStrips is not necessary
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# # since we will get noticed from the effectController when it added the rgbStrip to the offEffect
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# self.effectController.addOnControllerChangeHandler(self.onChange)
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# # register new Stripes
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# elif int(data['register_client_type']) is CLIENT_TYPE_STRIPE and "client_name" in data:
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# self.client_type = CLIENT_TYPE_STRIPE
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# # registers the strip with websocket object and name. the onRGBStripValueUpdate(rgbStrip) is called by
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# # by the rgbStrip when an effectThread updates it
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# # the self.rgbStrip variable is used to unregister the strip only
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# self.rgbStrip = self.rgbStripController.registerRGBStrip(data["client_name"],self.onRGBStripValueUpdate)
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# # register new Audio Recorders
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# elif int(data['register_client_type']) is CLIENT_TYPE_RECORDER:
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# self.client_type = CLIENT_TYPE_RECORDER
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# # controller responses are handled by the effectControllerJsonHandler
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# if self.client_type is CLIENT_TYPE_CONTROLLER:
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# response = effectControllerJsonHandler.responseHandler(self.effectController, self.rgbStripController, data)
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# self.sendMessage(
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# json.dumps({
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# 'response': response
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# })
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# )
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# return
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# # the stripe should usualy not send any data, i do not know why it should...
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# elif self.client_type is CLIENT_TYPE_STRIPE:
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# return
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# # audio recorder responses are handled by the effectControllerJsonHandler
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# elif self.client_type is CLIENT_TYPE_RECORDER:
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# return
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# except Exception as e:
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# print(e, traceback.format_exc())
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