misc cleanups
[zanchey/dispense2.git] / sql-edition / servers / VendServer.py
index fa16f45..974e0b4 100755 (executable)
@@ -3,15 +3,19 @@
 
 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
-from LATClient import LATClient
-from VendingMachine import VendingMachine
-from ConfigParser import ConfigParser
+from LATClient import LATClient, LATClientException
+from VendingMachine import VendingMachine, VendingException
 from HorizScroll import HorizScroll
 from random import random, seed
+from Idler import TrainIdler,GrayIdler
+import socket
+from posix import geteuid
 
 GREETING = 'UCC SNACKS'
 PIN_LENGTH = 4
@@ -109,7 +113,7 @@ def verify_user_pin(uid, pin):
        else:
                return None
 
-def door_open_mode(vending_machine):
+def door_open_mode(v):
        print "Entering open door mode"
        v.display("-FEED  ME-")
        while True:
@@ -122,65 +126,6 @@ def door_open_mode(vending_machine):
                                sleep(1)
                                return
 
-class Idler:
-       def __init__(self, v):
-               self.idle_state = 0
-               self.v = v
-
-       def put_shark(self, s, l):
-               if self.s[l] == ' ':
-                       self.s[l] = s
-               elif self.s[l] == 'X':
-                       self.s[l] = '*'
-               else:
-                       self.s[l] = 'X'
-
-       def next(self):
-               # does the next stage of a dance
-               self.s = [' ']*10
-               shark1 = self.idle_state % 18
-               if shark1 < 9:
-                       self.put_shark('^', shark1)
-               else:
-                       self.put_shark('^', 18-shark1)
-
-               shark2 = ((self.idle_state+4) % 36)/2
-               if shark2 < 9:
-                       self.put_shark('<', shark2)
-               else:
-                       self.put_shark('<', 18-shark2)
-
-               shark3 = ((self.idle_state+7) % 54)/3
-               if shark3 < 9:
-                       self.put_shark('>', 9-shark3)
-               else:
-                       self.put_shark('>', 9-(18-shark3))
-
-               train1 = ((self.idle_state%(18*36)))
-               train1_start = 122
-               if train1 > train1_start and train1 < train1_start+(10*2):
-                       for i in range(5):
-                               ptr = i+train1-train1_start-5
-                               if ptr >= 0 and ptr < 10: self.s[ptr] = '#'
-
-               train2 = ((self.idle_state%(18*36)))
-               train2_start = 400
-               if train2 > train2_start and train2 < train2_start+(10*2):
-                       for i in range(5):
-                               ptr = i+train2-train2_start-5
-                               if ptr >= 0 and ptr < 10: self.s[9-ptr] = '#'
-
-               train3 = ((self.idle_state%(18*36)))
-               train3_start = 230
-               if train3 > train3_start and train3 < train3_start+(10*2):
-                       for i in range(10):
-                               ptr = i+train3-train3_start-10
-                               if ptr >= 0 and ptr < 10: self.s[ptr] = '-'
-
-               self.v.display(string.join(self.s, ''))
-               self.idle_state += 1
-               self.idle_state %= 18*36*54
-
 def cookie(v):
        seed(time())
        messages = ['  WASSUP! ', 'PINK FISH ', ' SECRETS ', '  ESKIMO  ', ' FORTUNES ', 'MORE MONEY']
@@ -254,31 +199,11 @@ class MessageKeeper:
        def done(self):
                return len(self.scrolling_message) == 0
 
-if __name__ == '__main__':
-       cp = ConfigParser()
-       cp.read('/etc/dispense/servers.conf')
-       DBServer = cp.get('Database', 'Server')
-       DBName = cp.get('Database', 'Name')
-       DBUser = cp.get('VendingMachine', 'DBUser')
-       DBPassword = cp.get('VendingMachine', 'DBPassword')
-
-       ServiceName = cp.get('VendingMachine', 'ServiceName')
-       ServicePassword = cp.get('VendingMachine', 'Password')
-       # Open vending machine via LAT
-       if 0:
-               latclient = LATClient(service = ServiceName, password = ServicePassword)
-               (rfh, wfh) = latclient.get_fh()
-       else:
-               #(rfh, wfh) = popen2('../../virtualvend/vvend.py')
-               import socket
-               sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM, 0)
-               sock.connect(('localhost', 5150))
-               rfh = sock.makefile('r')
-               wfh = sock.makefile('w')
+def run_forever(rfh, wfh, options, cf):
        v = VendingMachine(rfh, wfh)
        print 'PING is', v.ping()
 
-       if USE_DB: db = DispenseDatabase(v, DBServer, DBName, DBUser, DBPassword)
+       if USE_DB: db = DispenseDatabase(v, cf.DBServer, cf.DBName, cf.DBUser, cf.DBPassword)
        cur_user = ''
        cur_pin = ''
        cur_selection = ''
@@ -286,7 +211,9 @@ if __name__ == '__main__':
        mk = MessageKeeper(v)
        mk.set_message(GREETING)
        time_to_autologout = None
-       idler = Idler(v)
+       #idler = TrainIdler(v)
+       #idler = GrayIdler(v)
+       idler = GrayIdler(v,one="*",zero="-")
        time_to_idle = None
        last_timeout_refresh = None
 
@@ -295,7 +222,7 @@ if __name__ == '__main__':
 
                if time_to_autologout != None:
                        time_left = time_to_autologout - time()
-                       if time_left < 5 and (last_timeout_refresh is None or last_timeout_refresh > time_left):
+                       if time_left < 6 and (last_timeout_refresh is None or last_timeout_refresh > time_left):
                                mk.set_message('LOGOUT: '+str(int(time_left)))
                                last_timeout_refresh = int(time_left)
                                cur_selection = ''
@@ -324,6 +251,7 @@ if __name__ == '__main__':
                        e = v.next_event(0.1)
                        if e == None:
                                continue
+               time_to_idle = None
                (event, params) = e
                print e
                if event == DOOR:
@@ -348,10 +276,13 @@ if __name__ == '__main__':
                                if len(cur_user) == 5:
                                        uid = int(cur_user)
                                        if not has_good_pin(uid):
+                                               #mk.set_messages(
+                                                       #[(center('INVALID'), False, 0.7),
+                                                        #(center('PIN'), False, 0.7),
+                                                        #(center('SETUP'), False, 1.0),
+                                                        #(GREETING, False, None)])
                                                mk.set_messages(
-                                                       [(center('INVALID'), False, 0.7),
-                                                        (center('PIN'), False, 0.7),
-                                                        (center('SETUP'), False, 1.0),
+                                                       [(' '*10+'INVALID PIN SETUP'+' '*10, False, 3),
                                                         (GREETING, False, None)])
                                                cur_user = ''
                                                cur_pin = ''
@@ -391,9 +322,9 @@ if __name__ == '__main__':
                                        cur_pin = ''
                                        cur_user = ''
                                        cur_selection = ''
-                                       v.display('BYE!')
-                                       sleep(0.5)
-                                       mk.set_message(GREETING)
+                                       mk.set_messages(
+                                               [(center('BYE!'), False, 1.5),
+                                                (GREETING, False, None)])
                                        continue
                                cur_selection += chr(key + ord('0'))
                                mk.set_message('SELECT: '+cur_selection)
@@ -409,8 +340,16 @@ if __name__ == '__main__':
                                        #make_selection(cur_selection)
                                        # XXX this should move somewhere else:
                                        if cur_selection == '55':
-                                               v.display('GOT DOOR?')
-                                               os.system('su - "%s" -c "dispense door"'%username)
+                                               mk.set_message('OPENSESAME')
+                                               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:
+                                                       mk.set_message(center('BAD DOOR'))
+                                               sleep(1)
                                        elif cur_selection == '91':
                                                cookie(v)
                                        elif cur_selection == '99':
@@ -427,4 +366,117 @@ if __name__ == '__main__':
                                        v.display('THANK YOU')
                                        sleep(0.5)
                                        cur_selection = ''
-                                       time_to_autologout = time() + 10
+                                       time_to_autologout = time() + 8
+
+def connect_to_vend(options, cf):
+       # Open vending machine via LAT?
+       if options.use_lat:
+               latclient = LATClient(service = cf.ServiceName, password = cf.ServicePassword, server_name = cf.ServerName, connect_password = cf.ConnectPassword, priv_password = cf.PrivPassword)
+               rfh, wfh = latclient.get_fh()
+       else:
+               #(rfh, wfh) = popen2('../../virtualvend/vvend.py')
+               import socket
+               sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM, 0)
+               sock.connect((options.host, options.port))
+               rfh = sock.makefile('r')
+               wfh = sock.makefile('w')
+               
+       return rfh, wfh
+
+def parse_args():
+       from optparse import OptionParser
+
+       op = OptionParser(usage="%prog [OPTION]...")
+       op.add_option('-f', '--config-file', default='/etc/dispense/servers.conf', metavar='FILE', dest='config_file', help='use the specified config file instead of /etc/dispense/servers.conf')
+       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:
+               op.error('extra command line arguments: ' + ' '.join(args))
+
+       return options
+
+config_options = {
+       'DBServer': ('Database', 'Server'),
+       'DBName': ('Database', 'Name'),
+       'DBUser': ('VendingMachine', 'DBUser'),
+       'DBPassword': ('VendingMachine', 'DBPassword'),
+       
+       'ServiceName': ('VendingMachine', 'ServiceName'),
+       'ServicePassword': ('VendingMachine', 'Password'),
+       
+       'ServerName': ('DecServer', 'Name'),
+       'ConnectPassword': ('DecServer', 'ConnectPassword'),
+       'PrivPassword': ('DecServer', 'PrivPassword'),
+       }
+
+class VendConfigFile:
+       def __init__(self, config_file, options):
+               try:
+                       cp = ConfigParser.ConfigParser()
+                       cp.read(config_file)
+
+                       for option in options:
+                               section, name = options[option]
+                               value = cp.get(section, name)
+                               self.__dict__[option] = value
+               
+               except ConfigParser.Error, e:
+                       print "Error reading config file "+config_file+": " + str(e)
+                       sys.exit(1)
+
+def do_vend_server():
+       options = parse_args()
+       config_opts = VendConfigFile(options.config_file, config_options)
+
+       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 "Trying again in 5 seconds."
+                       sleep(5)
+                       continue
+               try:
+                       run_forever(rfh, wfh, options, config_opts)
+               except VendingException:
+                       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...)"
+

UCC git Repository :: git.ucc.asn.au