#!/usr/bin/python
+# vim:ts=4
-import sys, os, string, time, re, pwd
-import pg
+USE_DB = 0
+
+import sys, os, string, re, pwd
+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 HorizScroll import HorizScroll
GREETING = 'UCC SNACKS'
PIN_LENGTH = 4
+DOOR = 1
+SWITCH = 2
+KEY = 3
+
class DispenseDatabase:
- def __init__(self, vending_machine):
+ def __init__(self, vending_machine, host, name, user, password):
self.vending_machine = vending_machine
- self.db = pg.DB(dbname = 'dispense', host = 'dispense.ucc.gu.uwa.edu.au', user = 'vendserver', passwd = 'revresdnev')
+ self.db = pg.DB(dbname = name, host = host, user = user, passwd = password)
self.db.query('LISTEN vend_requests')
def process_requests(self):
self.process_requests()
notify = self.db.getnotify()
+def scroll_options(username, mk, welcome = False):
+ if welcome:
+ msg = [(center('WELCOME'), False, 0.8),
+ (center(username), False, 0.8)]
+ else:
+ msg = []
+ choices = ' '*10+'CHOICES: '
+ try:
+ coke_machine = file('/home/other/coke/coke_contents')
+ cokes = coke_machine.readlines()
+ coke_machine.close()
+ except:
+ cokes = []
+ pass
+ for c in cokes:
+ c = c.strip()
+ (slot_num, price, slot_name) = c.split(' ', 2)
+ if slot_name == 'dead': continue
+ choices += '%s8-%s (%sc) '%(slot_num, slot_name, price)
+ choices += '55-DOOR '
+ choices += 'OR A SNACK. '
+ choices += '99 TO READ AGAIN. '
+ choices += 'CHOICE? '
+ msg.append((choices, False, None))
+ mk.set_messages(msg)
+
def get_pin(uid):
try:
info = pwd.getpwuid(uid)
try:
s = os.stat(pinfile)
except OSError:
- return False
+ return None
if s.st_mode & 077:
return None
try:
return int(pinstr)
def has_good_pin(uid):
- return get_pin != None
+ return get_pin(uid) != None
def verify_user_pin(uid, pin):
if get_pin(uid) == pin:
print "Entering open door mode"
v.display("DOOR OPEN")
while True:
- v.wait_for_events(1)
- while True:
- e = v.next_event()
- if e == None: break
- (event, params) = e
- if event == DOOR:
- if params == 1: # door closed
- v.display("BYE BYE!")
- time.sleep(1)
- return
+ e = v.next_event()
+ if e == None: break
+ (event, params) = e
+ if event == DOOR:
+ if params == 1: # door closed
+ v.display("BYE BYE!")
+ sleep(1)
+ return
+
+def center(str):
+ 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 = False)
+ 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
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
- latclient = LATClient(service = 'VEND', password = 'dmscptd')
- (rfh, wfh) = latclient.get_fh()
+ 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')
v = VendingMachine(rfh, wfh)
print 'PING is', v.ping()
- #print 'BEEP is', v.beep()
- #print 'VEND 11 is', v.vend('11')
- #print 'SILENCE is', v.silence()
- #print 'DISPLAY is', v.display('WELCOME')
- print 'S is', v.get_switches()
-
- db = DispenseDatabase(v)
- db.process_requests()
+
+ if USE_DB: db = DispenseDatabase(v, DBServer, DBName, DBUser, DBPassword)
cur_user = ''
cur_pin = ''
cur_selection = ''
- scrolling_message = [GREETING]
- scrolling_wraps = False
- need_repaint = True
- timeout = None
- last_tick = time.time()
+ mk = MessageKeeper(v)
+ mk.set_message(GREETING)
+ logout_timeout = None
+ last_timeout_refresh = None
while True:
- if timeout != None and timeout > 0 and time.time() > last_tick+1:
- timeout -= 1
- if len(scrolling_message) > 0:
- need_repaint = True
- if need_repaint and len(scrolling_message) > 0:
- v.display(scrolling_message[0])
- if scrolling_wraps:
- scrolling_message.append(scrolling_message[0])
- del scrolling_message[0]
- need_repaint = False
-
- v.wait_for_events(1)
- while True:
- e = v.next_event()
- if e == None: break
- (event, params) = e
- if event == DOOR:
- if params == 0:
- door_open_mode(v);
+ if USE_DB: db.handle_events()
+
+ if logout_timeout != None:
+ time_left = logout_timeout - time()
+ if time_left < 5 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 = ''
+
+ if logout_timeout != None and logout_timeout - time() <= 0:
+ logout_timeout = None
+ cur_user = ''
+ cur_pin = ''
+ cur_selection = ''
+ mk.set_message(GREETING)
+
+ if logout_timeout and not mk.done(): logout_timeout = None
+ if len(cur_pin) == PIN_LENGTH and mk.done() and logout_timeout == None:
+ # start autologout
+ logout_timeout = time() + 15
+
+ mk.update_display()
+
+ e = v.next_event(0)
+ if e == None:
+ e = v.next_event(0.1)
+ if e == None:
+ continue
+ (event, params) = e
+ print e
+ if event == DOOR:
+ if params == 0:
+ door_open_mode(v);
+ cur_user = ''
+ cur_pin = ''
+ mk.set_message(GREETING)
+ elif event == SWITCH:
+ # don't care right now.
+ pass
+ elif event == KEY:
+ key = params
+ # complicated key handling here:
+ if len(cur_user) < 5:
+ if key == 11:
cur_user = ''
+ mk.set_message(GREETING)
+ continue
+ cur_user += chr(key + ord('0'))
+ mk.set_message('UID: '+cur_user)
+ 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)])
+ cur_user = ''
+ cur_pin = ''
+ continue
cur_pin = ''
- scrolling_message = [GREETING]
- scrolling_wraps = False
- need_repaint = True
- elif event == SWITCH:
- # don't care right now.
- pass
- elif event == KEY:
- key = params
- # complicated key handling here:
- if len(cur_user) < 5:
- if key == 11:
+ mk.set_message('PIN: ')
+ continue
+ elif len(cur_pin) < PIN_LENGTH:
+ if key == 11:
+ if cur_pin == '':
cur_user = ''
- scrolling_message = [GREETING]
- scrolling_wraps = False
- need_repaint = True
+ mk.set_message(GREETING)
continue
- cur_user += chr(key + ord('0'))
- v.display('UID: '+cur_user)
- if len(cur_user) == 5:
- uid = int(cur_user)
- if not has_good_pin(uid):
- v.display('PIN NO GOOD')
- time.sleep(1)
- continue
- v.display('PIN: ')
+ cur_pin = ''
+ mk.set_message('PIN: ')
+ continue
+ cur_pin += chr(key + ord('0'))
+ mk.set_message('PIN: '+'X'*len(cur_pin))
+ if len(cur_pin) == PIN_LENGTH:
+ username = verify_user_pin(int(cur_user), int(cur_pin))
+ if username:
+ v.beep(0, False)
+ cur_selection = ''
+ scroll_options(username, mk, True)
continue
- elif len(cur_pin) < PIN_LENGTH:
- if key == 11:
- if cur_pin == '':
- cur_user = ''
- scrolling_message = [GREETING]
- scrolling_wraps = False
- need_repaint = True
- continue
+ else:
+ v.beep(40, False)
+ mk.set_messages(
+ [(center('BAD PIN'), False, 1.0),
+ (center('SORRY'), False, 0.5),
+ (GREETING, False, None)])
+ cur_user = ''
cur_pin = ''
- v.display('PIN: ')
continue
- cur_pin += chr(key + ord('0'))
- v.display('PIN: '+'X'*len(cur_pin))
- if len(cur_pin) == PIN_LENGTH:
- name = verify_user_pin(int(cur_user), int(cur_pin))
- if name:
- v.beep(0, False)
- cur_selection = ''
-
- scrolling_message = [' WELCOME ', name]
- scrolling_message.append('OR A SNACK')
- scrolling_wraps = True
- need_repaint = True
- else:
- v.beep(255, False)
- scrolling_message = [' BAD PIN ', ' SORRY ', GREETING]
- scrolling_wraps = False
- need_repaint = True
-
- cur_user = ''
- cur_pin = ''
- continue
- elif len(cur_selection) < 2:
- if key == 11:
- if cur_selection == '':
- cur_pin = ''
- cur_user = ''
- v.display(GREETING)
- continue
- cur_selection += chr(key + ord('0'))
- if len(cur_selection) == 2:
- make_selection(cur_selection)
-
-
- db.handle_events()
+ elif len(cur_selection) == 0:
+ if key == 11:
+ cur_pin = ''
+ cur_user = ''
+ cur_selection = ''
+ v.display('BYE!')
+ sleep(0.5)
+ mk.set_message(GREETING)
+ continue
+ cur_selection += chr(key + ord('0'))
+ mk.set_message('SELECT: '+cur_selection)
+ elif len(cur_selection) == 1:
+ if key == 11:
+ cur_selection = ''
+ logout_timeout = None
+ scroll_options(username, mk)
+ continue
+ else:
+ cur_selection += chr(key + ord('0'))
+ #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)
+ elif cur_selection == '99':
+ scroll_options(username, mk)
+ cur_selection = ''
+ continue
+ elif cur_selection[1] == '8':
+ v.display('GOT COKE?')
+ os.system('su - "%s" -c "dispense %s"'%(username, cur_selection[0]))
+ else:
+ v.display('HERES A '+cur_selection)
+ v.vend(cur_selection)
+ sleep(0.5)
+ v.display('THANK YOU')
+ sleep(0.5)
+ cur_selection = ''
+ logout_timeout = time() + 10