X-Git-Url: https://git.ucc.asn.au/?p=zanchey%2Fdispense2.git;a=blobdiff_plain;f=sql-edition%2Fservers%2FVendServer.py;h=3c3aee69f6c4d33fd0e16fea43d83441fed89923;hp=2133f37e9c927ea957c2439cf8e10a6543770ba5;hb=482573e7c8afad56f1c8ca0464a6cf9ac3e267f4;hpb=5d819a536b7742c7ef741e0923f9337a24eb01e9

diff --git a/sql-edition/servers/VendServer.py b/sql-edition/servers/VendServer.py
index 2133f37..3c3aee6 100755
--- a/sql-edition/servers/VendServer.py
+++ b/sql-edition/servers/VendServer.py
@@ -3,7 +3,9 @@
 
 USE_DB = 0
 
-import sys, os, string, re, pwd
+import ConfigParser
+import sys, os, string, re, pwd, signal
+from traceback import print_tb
 if USE_DB: import pg
 from time import time, sleep
 from popen2 import popen2
@@ -13,7 +15,7 @@ from HorizScroll import HorizScroll
 from random import random, seed
 from Idler import TrainIdler,GrayIdler
 import socket
-from traceback import print_tb
+from posix import geteuid
 
 GREETING = 'UCC SNACKS'
 PIN_LENGTH = 4
@@ -339,7 +341,10 @@ def run_forever(rfh, wfh, options, cf):
 					# XXX this should move somewhere else:
 					if cur_selection == '55':
 						mk.set_message('OPENSESAME')
-						ret = os.system('su - "%s" -c "dispense door"'%username)
+						if geteuid() == 0:
+							ret = os.system('su - "%s" -c "dispense door"'%username)
+						else:
+							ret = os.system('dispense door')
 						if ret == 0:
 							mk.set_message(center('DOOR OPEN'))
 						else:
@@ -386,6 +391,9 @@ def parse_args():
 	op.add_option('-v', '--virtualvend', action='store_false', default=True, dest='use_lat', help='use the virtual vending server instead of LAT')
 	op.add_option('-n', '--hostname', dest='host', default='localhost', help='the hostname to connect to for virtual vending machine mode (default: localhost)')
 	op.add_option('-p', '--port', dest='port', default=5150, type='int', help='the port number to connect to (default: 5150)')
+	op.add_option('-l', '--log-file', metavar='FILE', dest='log_file', default='', help='log output to the specified file')
+	op.add_option('-s', '--syslog', dest='syslog', action='store_true', default=False, help='log output to syslog')
+	op.add_option('-d', '--daemon', dest='daemon', action='store_true', default=False, help='run as a daemon')
 	options, args = op.parse_args()
 
 	if len(args) != 0:
@@ -422,22 +430,27 @@ class VendConfigFile:
 			print "Error reading config file "+config_file+": " + str(e)
 			sys.exit(1)
 
-
-if __name__ == '__main__':
-	import ConfigParser
-
+def do_vend_server():
 	options = parse_args()
 	config_opts = VendConfigFile(options.config_file, config_options)
 
+	if options.daemon:
+		dev_null = file('/dev/null')
+		fd = dev_null.fileno()
+		os.dup2(fd, 0)
+		os.dup2(fd, 1)
+		os.dup2(fd, 2)
+		if os.fork() != 0:
+			sys.exit(0)
+
 	while True:
 		try:
 			rfh, wfh = connect_to_vend(options, config_opts)
 		except (LATClientException, socket.error), e:
 			(exc_type, exc_value, exc_traceback) = sys.exc_info()
+			del exc_traceback
 			print
 			print "Connection error: "+str(exc_type)+" "+str(e)
-			print_tb(exc_traceback)
-			del exc_traceback
 			print "Trying again in 5 seconds."
 			sleep(5)
 			continue
@@ -447,3 +460,32 @@ if __name__ == '__main__':
 			print
 			print "Connection died, trying again..."
 
+if __name__ == '__main__':
+	def do_nothing(signum, stack): pass
+	def stop_server(signum, stack): raise KeyboardInterrupt
+	signal.signal(signal.SIGHUP, do_nothing)
+	signal.signal(signal.SIGTERM, stop_server)
+	signal.signal(signal.SIGINT, stop_server)
+	while True:
+		try:
+			do_vend_server()
+		except KeyboardInterrupt:
+			print "Killed by signal."
+			break
+		except SystemExit, e:
+			raise e
+		except:
+			(exc_type, exc_value, exc_traceback) = sys.exc_info()
+			print
+			print "Uh-oh, unhandled " + str(exc_type) + " exception"
+			print "Message: ", str(exc_value)
+			print
+			print_tb(exc_traceback)
+			del exc_traceback
+			print
+			print "This message should be considered a bug in the Vend Server."
+			print "Please report this to someone who can fix it."
+			sleep(10)
+			print
+			print "Trying again anyway (might not help, but hey...)"
+