USE_DB = 0
import ConfigParser
-import sys, os, string, re, pwd, signal
+import sys, os, string, re, pwd, signal, math
import logging, logging.handlers
from traceback import format_tb
if USE_DB: import pg
from time import time, sleep
from popen2 import popen2
from LATClient import LATClient, LATClientException
+from SerialClient import SerialClient, SerialClientException
from VendingMachine import VendingMachine, VendingException
+from MessageKeeper import MessageKeeper
from HorizScroll import HorizScroll
from random import random, seed
-from Idler import TrainIdler,GrayIdler
+from Idler import TrainIdler,GrayIdler,StringIdler,ClockIdler,FortuneIdler,FileIdler,PipeIdler
import socket
from posix import geteuid
+CREDITS="""
+This vending machine software brought to you by:
+Bernard Blackham
+Mark Tearle
+Nick Bannon
+Cameron Patrick
+and a collective of hungry alpacas.
+
+
+
+For a good time call +61 8 6488 3901
+
+
+
+"""
+
GREETING = 'UCC SNACKS'
PIN_LENGTH = 4
try:
info = pwd.getpwuid(uid)
except KeyError:
+ logging.info('getting pin for uid %d: user not in password file'%uid)
return None
if info.pw_dir == None: return False
pinfile = os.path.join(info.pw_dir, '.pin')
try:
s = os.stat(pinfile)
except OSError:
+ logging.info('getting pin for uid %d: .pin not found in home directory'%uid)
return None
if s.st_mode & 077:
+ logging.info('getting pin for uid %d: .pin has wrong permissions'%uid)
return None
try:
f = file(pinfile)
except IOError:
+ logging.info('getting pin for uid %d: I cannot read pin file'%uid)
return None
pinstr = f.readline()
f.close()
if not re.search('^'+'[0-9]'*PIN_LENGTH+'$', pinstr):
+ logging.info('getting pin for uid %d: %s not a good pin'%(uid,repr(pinstr)))
return None
return int(pinstr)
def verify_user_pin(uid, pin):
if get_pin(uid) == pin:
info = pwd.getpwuid(uid)
+ logging.info('accepted pin for uid %d (%s)'%(uid,info.pw_name))
return info.pw_name
else:
+ logging.info('refused pin for uid %d'%(uid))
return None
def door_open_mode(v):
LEN = 10
return ' '*((LEN-len(str))/2)+str
-class MessageKeeper:
- def __init__(self, vendie):
- # Each element of scrolling_message should be a 3-tuple of
- # ('message', True/False if it is to be repeated, time to display)
- self.scrolling_message = []
- self.v = vendie
- self.next_update = None
-
- def set_message(self, string):
- self.scrolling_message = [(string, False, None)]
- self.update_display(True)
-
- def set_messages(self, strings):
- self.scrolling_message = strings
- self.update_display(True)
-
- def update_display(self, forced = False):
- if not forced and self.next_update != None and time() < self.next_update:
- return
- if len(self.scrolling_message) > 0:
- if len(self.scrolling_message[0][0]) > 10:
- (m, r, t) = self.scrolling_message[0]
- a = []
- exp = HorizScroll(m).expand(padding = 0, wraparound = True)
- if t == None:
- t = 0.1
- else:
- t = t / len(exp)
- for x in exp:
- a.append((x, r, t))
- del self.scrolling_message[0]
- self.scrolling_message = a + self.scrolling_message
- newmsg = self.scrolling_message[0]
- if newmsg[2] != None:
- self.next_update = time() + newmsg[2]
- else:
- self.next_update = None
- self.v.display(self.scrolling_message[0][0])
- if self.scrolling_message[0][1]:
- self.scrolling_message.append(self.scrolling_message[0])
- del self.scrolling_message[0]
- def done(self):
- return len(self.scrolling_message) == 0
+
+idlers = []
+idler = None
+
+def setup_idlers(v):
+ global idlers, idler
+ idlers = [
+ GrayIdler(v),
+ StringIdler(v, text="Kill 'em all", repeat=False),
+ GrayIdler(v,one="*",zero="-"),
+ StringIdler(v, text=CREDITS),
+ GrayIdler(v,one="/",zero="\\"),
+ ClockIdler(v),
+ GrayIdler(v,one="X",zero="O"),
+ FileIdler(v, '/usr/share/common-licenses/GPL-2'),
+ GrayIdler(v,one="*",zero="-",reorder=1),
+ StringIdler(v, text=str(math.pi) + " "),
+ ClockIdler(v),
+ GrayIdler(v,one="/",zero="\\",reorder=1),
+ StringIdler(v, text=str(math.e) + " "),
+ GrayIdler(v,one="X",zero="O",reorder=1),
+ StringIdler(v, text=" I want some pizza - please call Pizza Hut Shenton Park on +61 8 9381 9979 - and order as Quinn - I am getting really hungry", repeat=False),
+ PipeIdler(v, "/usr/bin/ypcat", "passwd"),
+ FortuneIdler(v),
+ ClockIdler(v),
+ StringIdler(v),
+ TrainIdler(v),
+ ]
+ disabled = [
+ ]
+ idler = choose_idler()
+
+def choose_idler():
+ global idler
+ iiindex = 0
+
+ if idler:
+ iiindex = idlers.index(idler)
+
+ iilen = len(idlers)
+
+ move = int(random()*len(idlers)) + 1
+
+ while move >= 0:
+ idler = idlers[( (iiindex + 1) % iilen)]
+ move = move - idler.affinity()
+
+ idler.reset()
+
+def idle_step():
+ global idler
+ if idler.finished():
+ choose_idler()
+ idler.next()
def run_forever(rfh, wfh, options, cf):
v = VendingMachine(rfh, wfh)
mk = MessageKeeper(v)
mk.set_message(GREETING)
time_to_autologout = None
- #idler = TrainIdler(v)
- #idler = GrayIdler(v)
- idler = GrayIdler(v,one="*",zero="-")
+ setup_idlers(v)
time_to_idle = None
last_timeout_refresh = None
+
+ # This main loop is hideous and the work of the devil - mtearle
+ #
+ #
+ # notes for later surgery
+ # (event, counter, ' ')
+ # V
+ # d[ ] = (method)
+ #
+ # return state
+
while True:
if USE_DB:
try:
if len(cur_pin) == PIN_LENGTH and mk.done() and time_to_autologout == None:
# start autologout
time_to_autologout = time() + 15
+ last_timeout_refresh = None
- if time_to_idle == None and cur_user == '': time_to_idle = time() + 60
- if time_to_idle != None and cur_user != '': time_to_idle = None
- if time_to_idle is not None and time() > time_to_idle: idler.next()
+ if time_to_idle == None and cur_user == '':
+ time_to_idle = time() + 5
+ choose_idler()
+ if time_to_idle is not None and cur_user != '': time_to_idle = None
+ if time_to_idle is not None and time() > time_to_idle: idle_step()
+ if time_to_idle is not None and time() > time_to_idle + 300:
+ time_to_idle = time()
+ choose_idler()
mk.update_display()
e = v.next_event(0)
if e == None:
- e = v.next_event(0.1)
+ e = v.next_event(0.05)
if e == None:
continue
time_to_idle = None
if len(cur_user) == 5:
uid = int(cur_user)
if not has_good_pin(uid):
+ logging.info('user '+cur_user+' has a bad PIN')
#mk.set_messages(
#[(center('INVALID'), False, 0.7),
#(center('PIN'), False, 0.7),
continue
cur_pin = ''
mk.set_message('PIN: ')
+ logging.info('need pin for user %s'%cur_user)
continue
elif len(cur_pin) < PIN_LENGTH:
if key == 11:
# XXX this should move somewhere else:
if cur_selection == '55':
mk.set_message('OPENSESAME')
+ logging.info('dispensing a door for %s'%username)
if geteuid() == 0:
ret = os.system('su - "%s" -c "dispense door"'%username)
else:
ret = os.system('dispense door')
if ret == 0:
+ logging.info('door opened')
mk.set_message(center('DOOR OPEN'))
else:
+ logging.warning('user %s tried to dispense a bad door'%username)
mk.set_message(center('BAD DOOR'))
sleep(1)
elif cur_selection == '91':
continue
elif cur_selection[1] == '8':
v.display('GOT COKE?')
- os.system('su - "%s" -c "dispense %s"'%(username, cur_selection[0]))
+ if ((os.system('su - "%s" -c "dispense %s"'%(username, cur_selection[0])) >> 8) != 0):
+ v.display('SEEMS NOT')
+ else:
+ v.display('GOT COKE!')
else:
- v.display('HERES A '+cur_selection)
- v.vend(cur_selection)
- sleep(0.5)
- v.display('THANK YOU')
- sleep(0.5)
+ v.display(cur_selection+' - $1.00')
+ if ((os.system('su - "%s" -c "dispense snack"'%(username)) >> 8) == 0):
+ v.vend(cur_selection)
+ v.display('THANK YOU')
+ else:
+ v.display('NO MONEY?')
+ sleep(1)
cur_selection = ''
time_to_autologout = time() + 8
+ last_timeout_refresh = None
def connect_to_vend(options, cf):
- # Open vending machine via LAT?
+
if options.use_lat:
+ logging.info('Connecting to vending machine using 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()
+ elif options.use_serial:
+ # Open vending machine via serial.
+ logging.info('Connecting to vending machine using serial')
+ serialclient = SerialClient(port = '/dev/ttyS1', baud = 9600)
+ rfh,wfh = serialclient.get_fh()
else:
#(rfh, wfh) = popen2('../../virtualvend/vvend.py')
+ logging.info('Connecting to virtual vending machine on %s:%d'%(options.host,options.port))
import socket
sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM, 0)
sock.connect((options.host, options.port))
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('--virtualvend', action='store_false', default=True, dest='use_lat', help='use the virtual vending server instead of LAT')
+ op.add_option('--serial', action='store_true', default=True, dest='use_serial', help='use the serial port')
+ op.add_option('--lat', action='store_true', default=False, dest='use_lat', help='use LAT')
+ op.add_option('--virtualvend', action='store_false', default=True, dest='use_serial', 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('-s', '--syslog', dest='syslog', metavar='FACILITY', default=None, help='log output to given syslog facility')
op.add_option('-d', '--daemon', dest='daemon', action='store_true', default=False, help='run as a daemon')
op.add_option('-v', '--verbose', dest='verbose', action='store_true', default=False, help='spit out lots of debug output')
op.add_option('-q', '--quiet', dest='quiet', action='store_true', default=False, help='only report errors')
self.__dict__[option] = value
except ConfigParser.Error, e:
- logging.critical("Error reading config file "+config_file+": " + str(e))
- logging.critical("Bailing out")
- sys.exit(1)
+ raise SystemExit("Error reading config file "+config_file+": " + str(e))
def create_pid_file(name):
try:
signal.signal(signal.SIGINT, stop_server)
options = parse_args()
- set_up_logging(options)
config_opts = VendConfigFile(options.config_file, config_options)
if options.daemon: become_daemon()
+ set_up_logging(options)
if options.pid_file != '': create_pid_file(options.pid_file)
return options, config_opts
def set_up_logging(options):
logger = logging.getLogger()
- stderr_logger = logging.StreamHandler(sys.stderr)
- stderr_logger.setFormatter(logging.Formatter('%(levelname)s: %(message)s'))
- logger.addHandler(stderr_logger)
+ if not options.daemon:
+ stderr_logger = logging.StreamHandler(sys.stderr)
+ stderr_logger.setFormatter(logging.Formatter('%(levelname)s: %(message)s'))
+ logger.addHandler(stderr_logger)
if options.log_file != '':
try:
except IOError, e:
logger.warning('unable to write to log file '+options.log_file+': '+str(e))
- if options.syslog:
- sys_logger = logging.handlers.SysLogHandler('/dev/log', 'daemon')
+ if options.syslog != None:
+ sys_logger = logging.handlers.SysLogHandler('/dev/log', options.syslog)
sys_logger.setFormatter(logging.Formatter('vendserver[%d]'%(os.getpid()) + ' %(levelname)s: %(message)s'))
logger.addHandler(sys_logger)
os.dup2(fd, 0)
os.dup2(fd, 1)
os.dup2(fd, 2)
- if os.fork() != 0:
- sys.exit(0)
+ try:
+ if os.fork() != 0:
+ sys.exit(0)
+ os.setsid()
+ except OSError, e:
+ raise SystemExit('failed to fork: '+str(e))
def do_vend_server(options, config_opts):
while True:
try:
rfh, wfh = connect_to_vend(options, config_opts)
- except (LATClientException, socket.error), e:
+ except (SerialClientException, socket.error), e:
(exc_type, exc_value, exc_traceback) = sys.exc_info()
del exc_traceback
logging.error("Connection error: "+str(exc_type)+" "+str(e))
clean_up_nicely(options, config_opts)
logging.warning("Vend Server stopped")
break
+ except SystemExit:
+ break
except:
(exc_type, exc_value, exc_traceback) = sys.exc_info()
tb = format_tb(exc_traceback, 20)