Cleanup, qrnet updates

tunnel/ircvpn/conf.py

@@ -3,21 +3,6 @@
 # | ircvpn - irc virtual public network configuration |
 # |___________________________________________________|
 
-# config options
-# IRC
-#    - server (ip, port, ssl)
-#	 - channel
-#	 - nick prefix
-#	 - maximum line length
-# Network
-#    - device: ip, netmask, mtu
-#    - dhclient instead of static ip?
-#    - routing?
-#	 - dns?
-# Tunnel
-#	 - security settings
-#	 - mode (hub or switch)
-
 import os
 
 Conf = {
@@ -39,9 +24,6 @@ Conf = {
 		
 	# ======== IRC settings ========
 	# irc-server to use
-	#ircserver = ('irc.someserver.de', 6667)
-	#ircserver = ('testine.someserver.de', 6667)
-	#ircserver = ('192.168.56.1', 6667)
 	'ircserver': ('testine.someserver.de', 6667),
 	
 	# broadcast domain (where to meet other clients)
@@ -78,6 +60,6 @@ Conf = {
 	
 	# ======== misc settings ========
 	# executed after being connected to the server
-	# arguments: <command> <device>
+	# %s will be replaces with the device name
 	'postConnectCmd': '/sbin/dhclient -v %s',
 }

tunnel/ircvpn/ircvpn.py

@@ -119,7 +119,7 @@ class IrcVPN(Ether2Any):
 				partmsg = base64.b64decode(basemsg[:64])
 				if len(partmsg) < 24:
 					raise ValueError()
-			except base64.binascii.Error, ValueError:
+			except (base64.binascii.Error, ValueError):
 				self.irclog.warning("Could not decode parted base64 message, discarding")
 				return
 			self.packets[msgid] = basemsg

tunnel/qrnet/conf.py

@@ -0,0 +1,22 @@
+
+import os
+
+
+Conf = {
+	# ======== network settings ========
+	# ipsettings for the device
+	'devname': '',
+	'network':
+		{
+			'address': '10.10.10.74',
+			'netmask': '255.255.255.0',
+			#gateway: '',
+			'mtu': 417,
+		},
+	# number of video device, mostly /dev/video<num> (value needed for opencv)
+	'camnum': 0,
+	
+	# drop outgoing packets if more than X are in the queue
+	'packetDrop': 20,
+}
+

tunnel/qrnet/qrconf.py

@@ -1,19 +0,0 @@
-
-import os
-
-netmask = "255.255.255.0"
-mtu = 417
-ip = ""
-camnum = 0
-packetDrop = 20
-
-if os.popen("hostname", "r").read().strip() in ("navi", ):
-	ip = "10.44.13.1"
-	camnum = 0
-else:
-	ip = "10.44.13.2"
-	camnum = 2
-
-if __name__ == '__main__':
-	print ip
-

tunnel/qrnet/qrnet.py

@@ -27,19 +27,21 @@ from conf import Conf
 
 mqueueMutex = threading.Lock()
 squeueMutex = threading.Lock()
+exqueue = Queue.Queue()
 
 class QrDisplay(gtk.Window):
 	def __init__(self, mqueue, squeue, displog, timeout=250):
 		super(QrDisplay, self).__init__()
 		
-		self.fullscreen()
-		self.qrimgPadding = 20
-		(wx, wy) = self.getHackySize()
 		self.timeout = timeout
 		self.mqueue = mqueue
 		self.squeue = squeue
 		self.displog = displog
 		
+		self.fullscreen()
+		self.qrimgPadding = 20
+		(wx, wy) = self.getHackySize()
+		
 		# build up gui
 		self.vbox = gtk.VBox(False, 0)
 		self.qrimg = gtk.Image()
@@ -54,7 +56,7 @@ class QrDisplay(gtk.Window):
 		self.add(self.vbox)
 		
 		# connect signals
-		self.connect("destroy", gtk.main_quit)
+		self.connect("destroy", self.quitGui)
 		self.set_size_request(wx, wy)
 		self.maximize()
 		self.set_position(gtk.WIN_POS_CENTER)
@@ -62,6 +64,9 @@ class QrDisplay(gtk.Window):
 		self.qrSet("")
 		gobject.timeout_add(self.timeout, self.checkQueue)
 	
+	def quitGui(self, *args, **kwargs):
+		exqueue.put(KeyboardInterrupt())
+	
 	def checkQueue(self):
 		#print "Check queue...",
 		mqueueMutex.acquire()
@@ -87,7 +92,7 @@ class QrDisplay(gtk.Window):
 	def getHackySize(self):
 		""" Obtain current size of screen via xrandr. """
 		#p = subprocess.Popen(["bash", "-c", 'xrandr|egrep "\*+"|egrep -o "[0-9]+x[0-9]+"'], stdout=subprocess.PIPE)
-		p = subprocess.Popen('xrandr|egrep "\*+"|egrep -o "[0-9]+x[0-9]+"', stdout=subprocess.PIPE)
+		p = subprocess.Popen('xrandr|egrep "\*+"|egrep -o "[0-9]+x[0-9]+"', stdout=subprocess.PIPE, shell=True)
 		p.wait()
 		(myout, myin) = p.communicate()
 		return map(lambda x: int(x)-self.qrimgPadding, myout.strip().split("x"))
@@ -124,14 +129,17 @@ class DisplayThread(threading.Thread):
 		threading.Thread.__init__(self)
 		self.dev = dev
 		self.quit = False
-		self.qrdisplay = QrDisplay(mqueue, squeue, )
+		self.qrdisplay = QrDisplay(mqueue, squeue, displog)
 		self.mqueue = mqueue
 		self.squeue = squeue
 		self.displog = displog
 		
 	def run(self):
 		self.displog.info("Display GTK Gui is up and running.")
-		gtk.main()
+		try:
+			gtk.main()
+		except Exception, e:
+			exqueue.push(e)
 
 class CamThread(threading.Thread):
 	""" Captures images from a webcam and decodes them.
@@ -151,55 +159,57 @@ class CamThread(threading.Thread):
 		self.success = 0
 		self.lastPacket = ""
 		
-		self.reader = highgui.cvCreateCameraCapture(camnum)
+		self.reader = highgui.cvCreateCameraCapture(Conf.get("camnum", 0))
 		self.scanner = zbar.ImageScanner()
 		self.scanner.parse_config('enable')
 	
 	def run(self):
-		while not self.quit:
+		try:
-			frame = highgui.cvQueryFrame(self.reader)
+			while not self.quit:
-			self.frame += 1
+				frame = highgui.cvQueryFrame(self.reader)
+				self.frame += 1
 				
-			frame = opencv.cvGetMat(frame)
+				frame = opencv.cvGetMat(frame)
-			img = adaptors.Ipl2PIL(frame)
+				img = adaptors.Ipl2PIL(frame)
-			width, height = img.size
+				width, height = img.size
-			zimg = zbar.Image(width, height, 'Y800', img.convert("L").tostring())
+				zimg = zbar.Image(width, height, 'Y800', img.convert("L").tostring())
-			self.scanner.scan(zimg)
+				self.scanner.scan(zimg)
-			data = None
+				data = None
-			for symbol in zimg:
+				for symbol in zimg:
-				data = symbol.data
+					data = symbol.data
-				self.camlog.debug("Data is: %s" % data)
+					self.camlog.debug("Data is: %s" % data)
-				self.success += 1
+					self.success += 1
-				# handle data
+					# handle data
-				if not self.lastPacket == data:
+					if not self.lastPacket == data:
-					self.lastPacket = data
+						self.lastPacket = data
-					try:
+						try:
-						msg = base64.b64decode(data)
+							msg = base64.b64decode(data)
-						(rawtime, packet) = (msg[0:8], msg[8:])
+							(rawtime, packet) = (msg[0:8], msg[8:])
-						ptime = struct.unpack("<d", rawtime)
+							ptime = struct.unpack("<d", rawtime)
-						self.camlog.debug("Network packet! Heade (time) is %s" % (ptime,))
+							self.camlog.debug("Network packet! Heade (time) is %s" % (ptime,))
-						self.dev.write(packet)
+							self.dev.write(packet)
-					except base64.binascii.Error:
+						except (base64.binascii.Error, TypeError):
-						print " ==> base64 error"
+							self.camlog.error("Base64 error - could not decode packet")
-						self.camlog.error("Base64 error - could not decode packet")
+						except struct.error:
-					except struct.error:
+							self.camlog.error("Header error - could not extract header information")
-						self.camlog.error("Header error - could not extract header information")
+					else:
-				else:
+						# packet is already known, discard
-					# packet is already known, discard
+						pass
-					pass
 
-			# status report to gui
+				# status report to gui
+				if self.frame % self.reportAfter == 0:
+					self.frame = self.success = 0
 				
-			if self.frame % self.reportAfter == 0:
+				squeueMutex.acquire()
-				self.frame = self.success = 0
+				if self.squeue.qsize() > self.reportAfter/2:
-			# too much status codes? flush 'em
+					while not self.squeue.empty():
-			squeueMutex.acquire()
+						self.squeue.get()
-			if self.squeue.qsize() > self.reportAfter/2:
+				# add new status code
-				while not self.squeue.empty():
+				self.squeue.put((self.frame, self.success))
-					self.squeue.get()
+				squeueMutex.release()
-			# add new status code
+		except Exception, e:
-			self.squeue.put((self.frame, self.success))
+			exqueue.put(e)
-			squeueMutex.release()
+			raise e
 					
 
 class QrNet(Ether2Any):
@@ -208,10 +218,15 @@ class QrNet(Ether2Any):
 		# device
 		Ether2Any.__init__(self, tap=True)
 		self.qrlog = self.setupLogging("QrNet")
-		self.dev.ifconfig(address=ip, netmask=netmask, mtu=mtu)
-		self.packetDrop = packetDrop
 		self.mqueue = Queue.Queue()
 		self.squeue = Queue.Queue()
+		self.setTimeout(1)
+		
+		network = Conf.get("network", {'mtu': 400})
+		self.packetDrop = Conf.get("packetDrop", 20)
+		
+		self.dev.ifconfig(**network)
+		self.dev.up()
 		
 		# thread starting...
 		gtk.gdk.threads_init()
@@ -221,10 +236,10 @@ class QrNet(Ether2Any):
 		self.display = DisplayThread(self.dev, self.mqueue, self.squeue, self.setupLogging("DisplayThread"))
 		self.display.start()
 	
-	def sendToNet(self):
+	def sendToNet(self, msg):
 		# prepare data for queue && display
 		self.qrlog.debug("Data from the device")
-		msg = self.dev.read()
+		
 		# add acttime to generate "unique" images
 		acttime = struct.pack("<d", time.time())
 		bmsg = base64.b64encode(acttime + msg)
@@ -238,10 +253,26 @@ class QrNet(Ether2Any):
 			self.qrlog.debug("Dropping packet!")
 		mqueueMutex.release()
 	
+	def callAfterSelect(self):
+		# check queue for excetions
+		if exqueue.qsize() > 0:
+			ex = exqueue.get()
+			raise ex
+	
 	def quit(self):
 		self.display.quit = True
 		self.cam.quit = True
+		gtk.main_quit()
 
 if __name__ == '__main__':
-	qrnet = QrNet()
+	try:
-	qrnet.run()
+		qrnet = QrNet()
+		qrnet.run()
+	except KeyboardInterrupt:
+		try:
+			qrnet.quit()
+		except NameError:
+			pass
+		sys.exit(0)
+	except Exception, e:
+		raise e