X-Git-Url: https://git.ralfj.de/saartuer.git/blobdiff_plain/83d646a505bed8c75eef15855da7046e5854106d..110416af543da9bffe1d02fa31885b5731a22aef:/tuerd

diff --git a/tuerd b/tuerd
index f03d5db..5c91f92 100755
--- a/tuerd
+++ b/tuerd
@@ -1,115 +1,33 @@
 #!/usr/bin/python3
-import time, socket, os, stat, atexit, errno, struct, pwd
-from libtuer import log
-from datetime import datetime
 import RPi.GPIO as GPIO
-SO_PEERCRED = 17 # DO - NOT - TOUCH
-GPIO.setmode(GPIO.BOARD)
-atexit.register(GPIO.cleanup)
-
-#tmp
-def recv_timeout(conn, size, time):
-	(r, w, x) = select.select([conn], [], [], time)
-	if len(r):
-		assert r[0] == conn
-		return conn.recv(size)
-	return None
+import statemachine, actor, pins, tysock, waker
+from libtuer import logger
+import argparse
+# TODO: implement some arguments, e.g. --debug which does not send e-mails and prints debug stuff
 
-# ******** definitions *********
-# 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))
+# initialize GPIO stuff
+GPIO.setmode(GPIO.BOARD)
 
-# 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_machine = statemachine.StateMachine(the_actor)
+the_socket = tysock.TySocket(the_machine)
+the_pins = pins.PinsWatcher(the_machine)
+the_waker = waker.Waker(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
-		log 
-		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 *********
-# 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)
-# 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)
-
-# shutdown handling
-def shutdown():
-	log("Shutting down")
-	sock.close()
-	forcerm(socketname)
-atexit.register(shutdown)
-
-# 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()
-	try:
-		# get peer information
-		(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 from %s (uid %d): %s" % (pwd.getpwuid(uid).pw_name,uid, 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)
-		log("done")
-		# close connection cleanly
-		conn.close()
-	except Exception as e:
-		log("Something went wrong: %s\n...continuing." % str(e))
+# bring 'em all down
+the_waker.stop()
+the_pins.stop()
+the_machine.stop()
+the_actor.stop()
 
+# shutdown GPIO stuff
+GPIO.cleanup()