X-Git-Url: https://git.ralfj.de/saartuer.git/blobdiff_plain/afd14c9b67b6fb41219abf0dcd5e7fda37a1b8a9..78609160138984cdd732e2a27c73f4dbd7a12935:/tuerd

diff --git a/tuerd b/tuerd
index f679fa8..8290c83 100755
--- a/tuerd
+++ b/tuerd
@@ -1,104 +1,53 @@
 #!/usr/bin/python3
-import time, socket, os, stat, atexit, errno, struct
-from datetime import datetime
 import RPi.GPIO as GPIO
-SO_PEERCRED = 17 # DO - NOT - TOUCH
+import statemachine, actor, pins, tysock, waker
+from libtuer import logger
+import argparse
+
+# Parse arguments
+parser = argparse.ArgumentParser(description='Run a door')
+parser.add_argument("-d", "--debug",
+					action="store_true", dest="debug",
+					help="Don't send emails")
+parser.add_argument("-f", "--fallback",
+					action="store_true", dest="fallback",
+					help="Fallback mode for unfunctional hardware: Depend on less sensor input")
+args = parser.parse_args()
+if args.debug:
+	import libtuer
+	libtuer.mailAddress = []
+if args.fallback:
+	logger.info("Starting in fallback mode")
+else:
+	# to avoid exceptions or getting None
+	args.fallback = False
+
+# Not let's go!
+logger.info("Starting up...")
+
+# initialize GPIO stuff
 GPIO.setmode(GPIO.BOARD)
 
-# ******** definitions *********
-# logging function
-# TODO: loglevel, log like a real daemon
-def log (what):
-	print (datetime.now(),what)
-
-# send to client for information but don't care if it arrives
-def waynesend (conn, what):
-	try:
-		conn.send(what)
-	except:
-		log("Couldn't send %s" % str(what))
-
-# for command not found: do nothing with the pins and send a "0" to the client
-def doNothing (conn):
-	log ("doing nothing")
-	waynesend(conn,b"0")
+# bring 'em all up
+the_actor = actor.Actor()
+the_waker = waker.Waker()
+the_machine = statemachine.StateMachine(the_actor, the_waker, args.fallback)
+the_socket = tysock.TySocket(the_machine)
+the_pins = pins.PinsWatcher(the_machine)
+
+# we do the socket accept thing in the main thread
+try:
+	the_socket.accept()
+except KeyboardInterrupt:
+	# this is what we waited for!
+	logger.info("Got SIGINT, terminating...")
 	pass
 
-# delete a file, don't care if it did not exist in the first place
-def forcerm(name):
-	try:
-		os.unlink (name)
-	except OSError as e:
-		# only ignore error if it was "file didn't exist"
-		if e.errno != errno.ENOENT:
-			raise
-
-# commands: on a pin do a series of timed on/off switches
-class Pinoutput:
-	# name is for logging and also used for mapping command names to instances of this class
-	# actionsanddelays is a list of pairs: (bool to set on pin, delay in seconds to wait afterwards)
-	def __init__ (self, name, pinnumber, actionsanddelays):
-		self.name = name
-		self.pin = pinnumber
-		self.todo = actionsanddelays
-		GPIO.setup(pinnumber, GPIO.OUT)
-		log ("Pin %d set to be an output pin for %s." % (pinnumber,name))
-	# actually send the signal to the pins
-	def __call__ (self, conn):
-		for (value,delay) in self.todo:
-			GPIO.output(self.pin, value)
-			log ("%s: Pin %d set to %s." % (self.name,self.pin,str(value)))
-			time.sleep(delay)
-		# notify success
-		waynesend(conn,b"1")
-
-# ******** configuration *********
-
-tuergroupid = 1005
-socketname = "/run/tuer.sock"
-pinlist = [Pinoutput("open", 12, [(True, 0.3), (False, 5.0)]),
-	Pinoutput("close", 16, [(True, 0.3), (False, 5.0)]),
-	Pinoutput("buzz", 22, [(True, 2.0), (False, 0.1)])]
-
-
-# ******** main *********
-# at the end do a cleanup
-atexit.register(GPIO.cleanup);
-
-# convert list of pin objects to dictionary for command lookup
-pindict = {}
-for pin in pinlist:
-	pindict[pin.name.encode()] = pin
-
-# create socket
-sock = socket.socket (socket.AF_UNIX, socket.SOCK_STREAM)
-# delete old socket file and don't bitch around if it's not there
-forcerm(socketname)
-# bind socket to file name
-sock.bind (socketname)
-# ensure we close and delete the socket when we quit (atexit.register is LIFO!)
-atexit.register(forcerm, socketname)
-atexit.register(sock.close)
-# allow only users in the tuergroup to write to the socket
-os.chown (socketname, 0, tuergroupid)
-os.chmod (socketname, stat.S_IRUSR | stat.S_IWUSR | stat.S_IRGRP | stat.S_IWGRP)
-# listen to the people, but not too many at once
-sock.listen(1)
-
-# main loop
-# FIXME: DoS by opening socket but not sending data, because this loop is single threaded; maybe settimeout helps a bit.
-while True:
-	# accept connections
-	conn, addr = sock.accept()
-	# get peer information (TODO use it for logging)
-	(pid, uid, gid) = (struct.unpack('3i', conn.getsockopt(socket.SOL_SOCKET, SO_PEERCRED, struct.calcsize('3i'))))
-	# get some data from the client (enough to hold any valid command)
-	data = conn.recv (32)
-	# log the command
-	log("received command: %s" % str(data))
-	# lookup the command, if it's not in the dict, use the doNothing function instead
-	# and execute the looked up command or doNothing with the connection, so it can respond to the client
-	pindict.get(data,doNothing)(conn)
-	# close connection cleanly
-	conn.close()
+# bring 'em all down
+the_waker.stop() # this one first, it "randomly" calls other threads
+the_pins.stop() # as does this
+the_machine.stop()
+the_actor.stop()
 
+# shutdown GPIO stuff
+GPIO.cleanup()