X-Git-Url: https://git.ucc.asn.au/?p=uccvend-vendserver.git;a=blobdiff_plain;f=sql-edition%2Fservers%2FVendServer.py;h=fa5ba5b88a5a80b0c5cd23e5d75c989848047e1a;hp=a09ac2a96a830f789e345d338ca6b1710333d65a;hb=4b4e4c8deae85f1bb0c49c51fea49a3e33127b44;hpb=17c75c889244e81d80a3a4f8aeeb8348c5cb7b71 diff --git a/sql-edition/servers/VendServer.py b/sql-edition/servers/VendServer.py index a09ac2a..fa5ba5b 100755 --- a/sql-edition/servers/VendServer.py +++ b/sql-edition/servers/VendServer.py @@ -4,26 +4,60 @@ USE_DB = 0 import ConfigParser -import sys, os, string, re, pwd, signal +import sys, os, string, re, pwd, signal, math, syslog import logging, logging.handlers from traceback import format_tb if USE_DB: import pg -from time import time, sleep +from time import time, sleep, mktime, localtime 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 GreetingIdler,TrainIdler,GrayIdler,StringIdler,ClockIdler,FortuneIdler,FileIdler,PipeIdler +from SnackConfig import get_snacks, get_snack import socket from posix import geteuid -GREETING = 'UCC SNACKS' +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 + + + +""" + PIN_LENGTH = 4 DOOR = 1 SWITCH = 2 KEY = 3 +TICK = 4 +MIFARE = 5 + + +( +STATE_IDLE, +STATE_DOOR_OPENING, +STATE_DOOR_CLOSING, +STATE_GETTING_UID, +STATE_GETTING_PIN, +STATE_GET_SELECTION, +STATE_GRANDFATHER_CLOCK, +) = range(1,8) + +TEXT_SPEED = 0.6 +IDLE_SPEED = 0.05 class DispenseDatabaseException(Exception): pass @@ -58,8 +92,14 @@ class DispenseDatabase: def scroll_options(username, mk, welcome = False): if welcome: - msg = [(center('WELCOME'), False, 0.8), - (center(username), False, 0.8)] + # Balance checking: crap code, [DAA]'s fault + acct = os.popen('dispense acct %s' % username) + balance = acct.read()[15:22] + acct.close() + + msg = [(center('WELCOME'), False, TEXT_SPEED), + (center(username), False, TEXT_SPEED), + (center(balance), False, TEXT_SPEED),] else: msg = [] choices = ' '*10+'CHOICES: ' @@ -74,9 +114,20 @@ def scroll_options(username, mk, welcome = False): 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 += '%s-(%sc)-%s8 '%(slot_name, price, slot_num) + +# we don't want to print snacks for now since it'll be too large +# and there's physical bits of paper in the machine anyway - matt +# try: +# snacks = get_snacks() +# except: +# snacks = {} +# +# for slot, ( name, price ) in snacks.items(): +# choices += '%s8-%s (%sc) ' % ( slot, name, price ) + choices += '55-DOOR ' - choices += 'OR A SNACK. ' + choices += 'OR ANOTHER SNACK. ' choices += '99 TO READ AGAIN. ' choices += 'CHOICE? ' msg.append((choices, False, None)) @@ -86,48 +137,42 @@ def get_pin(uid): 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: - return None + logging.info('getting pin for uid %d: .pin has wrong permissions. Fixing.'%uid) + os.chmod(pinfile, 0600) 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 has_good_pin(uid): return get_pin(uid) != None -def verify_user_pin(uid, pin): - if get_pin(uid) == pin: +def verify_user_pin(uid, pin, skip_pin_check=False): + if skip_pin_check or 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): - logging.warning("Entering open door mode") - v.display("-FEED ME-") - while True: - e = v.next_event() - if e == None: break - (event, params) = e - if event == DOOR: - if params == 1: # door closed - logging.warning('Leaving open door mode') - v.display("-YUM YUM!-") - sleep(1) - return def cookie(v): seed(time()) @@ -157,68 +202,654 @@ 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) +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',affinity=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 [now closed? - MSH] - and order as Quinn - I am getting really hungry", repeat=False), + PipeIdler(v, "/usr/bin/getent", "passwd"), + FortuneIdler(v), + ClockIdler(v), + StringIdler(v), + TrainIdler(v), + ] + disabled = [ + ] + +def reset_idler(v, vstatus, t = None): + global idlers, idler + idler = GreetingIdler(v, t) + vstatus.time_of_next_idlestep = time()+idler.next() + vstatus.time_of_next_idler = None + vstatus.time_to_autologout = None + vstatus.change_state(STATE_IDLE, 1) + +def choose_idler(): + global idlers, idler + iiindex = 0 + average_affinity = 10 # guessing here... + + if idler and idler.__class__ != GreetingIdler: + iiindex = idlers.index(idler) + + iilen = len(idlers) - def update_display(self, forced = False): - if not forced and self.next_update != None and time() < self.next_update: + move = int(random()*len(idlers)*average_affinity) + 1 + + while move >= 0: + iiindex += 1 + iiindex %= iilen + idler = idlers[iiindex] + move -= idler.affinity() + + idler.reset() + +def idle_step(vstatus): + global idler + if idler.finished(): + choose_idler() + vstatus.time_of_next_idler = time() + 30 + nextidle = idler.next() + if nextidle is None: + nextidle = IDLE_SPEED + vstatus.time_of_next_idlestep = time()+nextidle + +class VendState: + def __init__(self,v): + self.state_table = {} + self.state = STATE_IDLE + self.counter = 0 + + self.mk = MessageKeeper(v) + self.cur_user = '' + self.cur_pin = '' + self.username = '' + self.cur_selection = '' + self.time_to_autologout = None + + self.last_timeout_refresh = None + + def change_state(self,newstate,newcounter=None): + if self.state != newstate: + #print "Changing state from: ", + #print self.state, + #print " to ", + #print newstate + self.state = newstate + + if newcounter is not None and self.counter != newcounter: + #print "Changing counter from: ", + #print self.counter, + #print " to ", + #print newcounter + self.counter = newcounter + + + +def handle_tick_event(event, params, v, vstatus): + # don't care right now. + pass + +def handle_switch_event(event, params, v, vstatus): + # don't care right now. + pass + + +def do_nothing(state, event, params, v, vstatus): + print "doing nothing (s,e,p)", state, " ", event, " ", params + pass + +def handle_getting_uid_idle(state, event, params, v, vstatus): + # don't care right now. + pass + +def handle_getting_pin_idle(state, event, params, v, vstatus): + # don't care right now. + pass + +def handle_get_selection_idle(state, event, params, v, vstatus): + # don't care right now. + ### + ### State logging out .. + if vstatus.time_to_autologout != None: + time_left = vstatus.time_to_autologout - time() + if time_left < 6 and (vstatus.last_timeout_refresh is None or vstatus.last_timeout_refresh > time_left): + vstatus.mk.set_message('LOGOUT: '+str(int(time_left))) + vstatus.last_timeout_refresh = int(time_left) + vstatus.cur_selection = '' + + if vstatus.time_to_autologout != None and vstatus.time_to_autologout - time() <= 0: + vstatus.time_to_autologout = None + vstatus.cur_user = '' + vstatus.cur_pin = '' + vstatus.cur_selection = '' + + reset_idler(v, vstatus) + + ### State fully logged out ... reset variables + if vstatus.time_to_autologout and not vstatus.mk.done(): + vstatus.time_to_autologout = None + if vstatus.cur_user == '' and vstatus.time_to_autologout: + vstatus.time_to_autologout = None + + ### State logged in + if len(vstatus.cur_pin) == PIN_LENGTH and vstatus.mk.done() and vstatus.time_to_autologout == None: + # start autologout + vstatus.time_to_autologout = time() + 15 + vstatus.last_timeout_refresh = None + + ## FIXME - this may need to be elsewhere..... + # need to check + vstatus.mk.update_display() + + + +def handle_get_selection_key(state, event, params, v, vstatus): + key = params + if len(vstatus.cur_selection) == 0: + if key == 11: + vstatus.cur_pin = '' + vstatus.cur_user = '' + vstatus.cur_selection = '' + + vstatus.mk.set_messages([(center('BYE!'), False, 1.5)]) + reset_idler(v, vstatus, 2) 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] + vstatus.cur_selection += chr(key + ord('0')) + vstatus.mk.set_message('SELECT: '+vstatus.cur_selection) + vstatus.time_to_autologout = None + elif len(vstatus.cur_selection) == 1: + if key == 11: + vstatus.cur_selection = '' + vstatus.time_to_autologout = None + scroll_options(vstatus.username, vstatus.mk) + return + else: + vstatus.cur_selection += chr(key + ord('0')) + if vstatus.cur_user: + make_selection(v,vstatus) + vstatus.cur_selection = '' + vstatus.time_to_autologout = time() + 8 + vstatus.last_timeout_refresh = None 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] + # Price check mode. + price_check(v,vstatus) + vstatus.cur_selection = '' + vstatus.time_to_autologout = None + vstatus.last_timeout_refresh = None + +def make_selection(v, vstatus): + # should use sudo here + if vstatus.cur_selection == '55': + vstatus.mk.set_message('OPENSESAME') + logging.info('dispensing a door for %s'%vstatus.username) + if geteuid() == 0: + ret = os.system('su - "%s" -c "dispense door"'%vstatus.username) + else: + ret = os.system('dispense door') + if ret == 0: + logging.info('door opened') + vstatus.mk.set_message(center('DOOR OPEN')) + else: + logging.warning('user %s tried to dispense a bad door'%vstatus.username) + vstatus.mk.set_message(center('BAD DOOR')) + sleep(1) + elif vstatus.cur_selection == '81': + cookie(v) + elif vstatus.cur_selection == '99': + scroll_options(vstatus.username, vstatus.mk) + vstatus.cur_selection = '' + return + elif vstatus.cur_selection[1] == '8': + v.display('GOT DRINK?') + if ((os.system('su - "%s" -c "dispense %s"'%(vstatus.username, vstatus.cur_selection[0])) >> 8) != 0): + v.display('SEEMS NOT') + else: + v.display('GOT DRINK!') + else: + # first see if it's a named slot + try: + price, shortname, name = get_snack( vstatus.cur_selection ) + except: + price, shortname, name = get_snack( '--' ) + dollarprice = "$%.2f" % ( price / 100.0 ) + v.display(vstatus.cur_selection+' - %s'%dollarprice) + exitcode = os.system('su - "%s" -c "dispense give oday %d"'%(vstatus.username, price)) >> 8 + if (exitcode == 0): + # magic dispense syslog service + syslog.syslog(syslog.LOG_INFO | syslog.LOG_LOCAL4, "vended %s (slot %s) for %s" % (name, vstatus.cur_selection, vstatus.username)) + v.vend(vstatus.cur_selection) + v.display('THANK YOU') + else: + syslog.syslog(syslog.LOG_INFO | syslog.LOG_LOCAL4, "failed vending %s (slot %s) for %s (code %d)" % (name, vstatus.cur_selection, vstatus.username, exitcode)) + v.display('NO MONEY?') + sleep(1) + + +def price_check(v, vstatus): + if vstatus.cur_selection[1] == '8': + v.display(center('SEE COKE')) + else: + # first see if it's a named slot + try: + price, shortname, name = get_snack( vstatus.cur_selection ) + except: + price, shortname, name = get_snack( '--' ) + dollarprice = "$%.2f" % ( price / 100.0 ) + v.display(vstatus.cur_selection+' - %s'%dollarprice) + + +def handle_getting_pin_key(state, event, params, v, vstatus): + #print "handle_getting_pin_key (s,e,p)", state, " ", event, " ", params + key = params + if len(vstatus.cur_pin) < PIN_LENGTH: + if key == 11: + if vstatus.cur_pin == '': + vstatus.cur_user = '' + reset_idler(v, vstatus) + + return + vstatus.cur_pin = '' + vstatus.mk.set_message('PIN: ') + return + vstatus.cur_pin += chr(key + ord('0')) + vstatus.mk.set_message('PIN: '+'X'*len(vstatus.cur_pin)) + if len(vstatus.cur_pin) == PIN_LENGTH: + vstatus.username = verify_user_pin(int(vstatus.cur_user), int(vstatus.cur_pin)) + if vstatus.username: + v.beep(0, False) + vstatus.cur_selection = '' + vstatus.change_state(STATE_GET_SELECTION) + scroll_options(vstatus.username, vstatus.mk, True) + return + else: + v.beep(40, False) + vstatus.mk.set_messages( + [(center('BAD PIN'), False, 1.0), + (center('SORRY'), False, 0.5)]) + vstatus.cur_user = '' + vstatus.cur_pin = '' + + reset_idler(v, vstatus, 2) + + return + + +def handle_getting_uid_key(state, event, params, v, vstatus): + #print "handle_getting_uid_key (s,e,p)", state, " ", event, " ", params + key = params + + # complicated key handling here: + + if len(vstatus.cur_user) == 0 and key == 9: + vstatus.cur_selection = '' + vstatus.time_to_autologout = None + vstatus.mk.set_message('PRICECHECK') + sleep(0.5) + scroll_options('', vstatus.mk) + vstatus.change_state(STATE_GET_SELECTION) + return + + if len(vstatus.cur_user) <8: + if key == 11: + vstatus.cur_user = '' + + reset_idler(v, vstatus) + return + vstatus.cur_user += chr(key + ord('0')) + #logging.info('dob: '+vstatus.cur_user) + if len(vstatus.cur_user) > 5: + vstatus.mk.set_message('>'+vstatus.cur_user) + else: + vstatus.mk.set_message('UID: '+vstatus.cur_user) + + if len(vstatus.cur_user) == 5: + uid = int(vstatus.cur_user) + + if uid == 0: + logging.info('user '+vstatus.cur_user+' has a bad PIN') + pfalken=""" +CARRIER DETECTED + +CONNECT 128000 + +Welcome to Picklevision Sytems, Sunnyvale, CA + +Greetings Professor Falken. + + + - def done(self): - return len(self.scrolling_message) == 0 +Shall we play a game? + + +Please choose from the following menu: + +1. Tic-Tac-Toe +2. Chess +3. Checkers +4. Backgammon +5. Poker +6. Toxic and Biochemical Warfare +7. Global Thermonuclear War + +7 [ENTER] + +Wouldn't you prefer a nice game of chess? + +""".replace('\n',' ') + vstatus.mk.set_messages([(pfalken, False, 10)]) + vstatus.cur_user = '' + vstatus.cur_pin = '' + + reset_idler(v, vstatus, 10) + + return + + if not has_good_pin(uid): + logging.info('user '+vstatus.cur_user+' has a bad PIN') + vstatus.mk.set_messages( + [(' '*10+'INVALID PIN SETUP'+' '*11, False, 3)]) + vstatus.cur_user = '' + vstatus.cur_pin = '' + + reset_idler(v, vstatus, 3) + + return + + + vstatus.cur_pin = '' + vstatus.mk.set_message('PIN: ') + logging.info('need pin for user %s'%vstatus.cur_user) + vstatus.change_state(STATE_GETTING_PIN) + return + + +def handle_idle_key(state, event, params, v, vstatus): + #print "handle_idle_key (s,e,p)", state, " ", event, " ", params + + key = params + + if key == 11: + vstatus.cur_user = '' + reset_idler(v, vstatus) + return + + vstatus.change_state(STATE_GETTING_UID) + run_handler(event, key, v, vstatus) + + +def handle_idle_tick(state, event, params, v, vstatus): + ### State idling + if vstatus.mk.done(): + idle_step(vstatus) + + if vstatus.time_of_next_idler and time() > vstatus.time_of_next_idler: + vstatus.time_of_next_idler = time() + 30 + choose_idler() + + ### + + vstatus.mk.update_display() + + vstatus.change_state(STATE_GRANDFATHER_CLOCK) + run_handler(event, params, v, vstatus) + sleep(0.05) + +def beep_on(when, before=0): + start = int(when - before) + end = int(when) + now = int(time()) + + if now >= start and now <= end: + return 1 + return 0 + +def handle_idle_grandfather_tick(state, event, params, v, vstatus): + ### check for interesting times + now = localtime() + + quarterhour = mktime([now[0],now[1],now[2],now[3],15,0,now[6],now[7],now[8]]) + halfhour = mktime([now[0],now[1],now[2],now[3],30,0,now[6],now[7],now[8]]) + threequarterhour = mktime([now[0],now[1],now[2],now[3],45,0,now[6],now[7],now[8]]) + fivetothehour = mktime([now[0],now[1],now[2],now[3],55,0,now[6],now[7],now[8]]) + + hourfromnow = localtime(time() + 3600) + + #onthehour = mktime([now[0],now[1],now[2],now[3],03,0,now[6],now[7],now[8]]) + onthehour = mktime([hourfromnow[0],hourfromnow[1],hourfromnow[2],hourfromnow[3], \ + 0,0,hourfromnow[6],hourfromnow[7],hourfromnow[8]]) + + ## check for X seconds to the hour + ## if case, update counter to 2 + if beep_on(onthehour,15) \ + or beep_on(halfhour,0) \ + or beep_on(quarterhour,0) \ + or beep_on(threequarterhour,0) \ + or beep_on(fivetothehour,0): + vstatus.change_state(STATE_GRANDFATHER_CLOCK,2) + run_handler(event, params, v, vstatus) + else: + vstatus.change_state(STATE_IDLE) + +def handle_grandfather_tick(state, event, params, v, vstatus): + go_idle = 1 + + msg = [] + ### we live in interesting times + now = localtime() + + quarterhour = mktime([now[0],now[1],now[2],now[3],15,0,now[6],now[7],now[8]]) + halfhour = mktime([now[0],now[1],now[2],now[3],30,0,now[6],now[7],now[8]]) + threequarterhour = mktime([now[0],now[1],now[2],now[3],45,0,now[6],now[7],now[8]]) + fivetothehour = mktime([now[0],now[1],now[2],now[3],55,0,now[6],now[7],now[8]]) + + hourfromnow = localtime(time() + 3600) + +# onthehour = mktime([now[0],now[1],now[2],now[3],03,0,now[6],now[7],now[8]]) + onthehour = mktime([hourfromnow[0],hourfromnow[1],hourfromnow[2],hourfromnow[3], \ + 0,0,hourfromnow[6],hourfromnow[7],hourfromnow[8]]) + + + #print "when it fashionable to wear a onion on your hip" + + if beep_on(onthehour,15): + go_idle = 0 + next_hour=((hourfromnow[3] + 11) % 12) + 1 + if onthehour - time() < next_hour and onthehour - time() > 0: + v.beep(0, False) + + t = int(time()) + if (t % 2) == 0: + msg.append(("DING!", False, None)) + else: + msg.append((" DING!", False, None)) + elif int(onthehour - time()) == 0: + v.beep(255, False) + msg.append((" BONG!", False, None)) + msg.append((" IT'S "+ str(next_hour) + "O'CLOCK AND ALL IS WELL .....", False, TEXT_SPEED*4)) + elif beep_on(halfhour,0): + go_idle = 0 + v.beep(0, False) + msg.append((" HALFHOUR ", False, 50)) + elif beep_on(quarterhour,0): + go_idle = 0 + v.beep(0, False) + msg.append((" QTR HOUR ", False, 50)) + elif beep_on(threequarterhour,0): + go_idle = 0 + v.beep(0, False) + msg.append((" 3 QTR HR ", False, 50)) + elif beep_on(fivetothehour,0): + go_idle = 0 + v.beep(0, False) + msg.append(("Quick run to your lectures! Hurry! Hurry!", False, TEXT_SPEED*4)) + else: + go_idle = 1 + + ## check for X seconds to the hour + + if len(msg): + vstatus.mk.set_messages(msg) + sleep(1) + + vstatus.mk.update_display() + ## if no longer case, return to idle + + ## change idler to be clock + if go_idle and vstatus.mk.done(): + vstatus.change_state(STATE_IDLE,1) + +def handle_door_idle(state, event, params, v, vstatus): + def twiddle(clock,v,wise = 2): + if (clock % 4 == 0): + v.display("-FEED ME-") + elif (clock % 4 == 1+wise): + v.display("\\FEED ME/") + elif (clock % 4 == 2): + v.display("-FEED ME-") + elif (clock % 4 == 3-wise): + v.display("/FEED ME\\") + + # don't care right now. + now = int(time()) + + if ((now % 60 % 2) == 0): + twiddle(now, v) + else: + twiddle(now, v, wise=0) + + +def handle_door_event(state, event, params, v, vstatus): + if params == 0: #door open + vstatus.change_state(STATE_DOOR_OPENING) + logging.warning("Entering open door mode") + v.display("-FEED ME-") + #door_open_mode(v); + vstatus.cur_user = '' + vstatus.cur_pin = '' + elif params == 1: #door closed + vstatus.change_state(STATE_DOOR_CLOSING) + reset_idler(v, vstatus, 3) + + logging.warning('Leaving open door mode') + v.display("-YUM YUM!-") + +def handle_mifare_event(state, event, params, v, vstatus): + card_uid = params + # Translate card_id into uid. + vstatus.cur_user = str(card_uid) + vstatus.username = verify_user_pin(int(card_uid), None, True) + if vstatus.username: + v.beep(0, False) + vstatus.cur_selection = '' + vstatus.change_state(STATE_GET_SELECTION) + scroll_options(vstatus.username, vstatus.mk, True) + return + else: + v.beep(40, False) + vstatus.mk.set_messages( + [(center('BAD CARD'), False, 1.0), + (center('SORRY'), False, 0.5)]) + vstatus.cur_user = '' + vstatus.cur_pin = '' + + reset_idler(v, vstatus, 2) + return + +def return_to_idle(state,event,params,v,vstatus): + reset_idler(v, vstatus) + +def create_state_table(vstatus): + vstatus.state_table[(STATE_IDLE,TICK,1)] = handle_idle_tick + vstatus.state_table[(STATE_IDLE,KEY,1)] = handle_idle_key + vstatus.state_table[(STATE_IDLE,DOOR,1)] = handle_door_event + vstatus.state_table[(STATE_IDLE,MIFARE,1)] = handle_mifare_event + + vstatus.state_table[(STATE_DOOR_OPENING,TICK,1)] = handle_door_idle + vstatus.state_table[(STATE_DOOR_OPENING,DOOR,1)] = handle_door_event + vstatus.state_table[(STATE_DOOR_OPENING,KEY,1)] = do_nothing + vstatus.state_table[(STATE_DOOR_OPENING,MIFARE,1)] = do_nothing + + vstatus.state_table[(STATE_DOOR_CLOSING,TICK,1)] = return_to_idle + vstatus.state_table[(STATE_DOOR_CLOSING,DOOR,1)] = handle_door_event + vstatus.state_table[(STATE_DOOR_CLOSING,KEY,1)] = do_nothing + vstatus.state_table[(STATE_DOOR_CLOSING,MIFARE,1)] = do_nothing + + vstatus.state_table[(STATE_GETTING_UID,TICK,1)] = handle_getting_uid_idle + vstatus.state_table[(STATE_GETTING_UID,DOOR,1)] = do_nothing + vstatus.state_table[(STATE_GETTING_UID,KEY,1)] = handle_getting_uid_key + vstatus.state_table[(STATE_GETTING_UID,MIFARE,1)] = handle_mifare_event + + vstatus.state_table[(STATE_GETTING_PIN,TICK,1)] = handle_getting_pin_idle + vstatus.state_table[(STATE_GETTING_PIN,DOOR,1)] = do_nothing + vstatus.state_table[(STATE_GETTING_PIN,KEY,1)] = handle_getting_pin_key + vstatus.state_table[(STATE_GETTING_PIN,MIFARE,1)] = handle_mifare_event + + vstatus.state_table[(STATE_GET_SELECTION,TICK,1)] = handle_get_selection_idle + vstatus.state_table[(STATE_GET_SELECTION,DOOR,1)] = do_nothing + vstatus.state_table[(STATE_GET_SELECTION,KEY,1)] = handle_get_selection_key + vstatus.state_table[(STATE_GET_SELECTION,MIFARE,1)] = do_nothing + + vstatus.state_table[(STATE_GRANDFATHER_CLOCK,TICK,1)] = handle_idle_grandfather_tick + vstatus.state_table[(STATE_GRANDFATHER_CLOCK,TICK,2)] = handle_grandfather_tick + vstatus.state_table[(STATE_GRANDFATHER_CLOCK,DOOR,1)] = do_nothing + vstatus.state_table[(STATE_GRANDFATHER_CLOCK,DOOR,2)] = do_nothing + vstatus.state_table[(STATE_GRANDFATHER_CLOCK,KEY,1)] = do_nothing + vstatus.state_table[(STATE_GRANDFATHER_CLOCK,KEY,2)] = do_nothing + vstatus.state_table[(STATE_GRANDFATHER_CLOCK,MIFARE,1)] = handle_mifare_event + +def get_state_table_handler(vstatus, state, event, counter): + return vstatus.state_table[(state,event,counter)] + +def time_to_next_update(vstatus): + idle_update = vstatus.time_of_next_idlestep - time() + if not vstatus.mk.done() and vstatus.mk.next_update is not None: + mk_update = vstatus.mk.next_update - time() + if mk_update < idle_update: + idle_update = mk_update + return idle_update def run_forever(rfh, wfh, options, cf): v = VendingMachine(rfh, wfh) - logging.debug('PING is', v.ping()) + vstatus = VendState(v) + create_state_table(vstatus) + + logging.debug('PING is ' + str(v.ping())) if USE_DB: db = DispenseDatabase(v, cf.DBServer, cf.DBName, cf.DBUser, cf.DBPassword) - cur_user = '' - cur_pin = '' - cur_selection = '' - - mk = MessageKeeper(v) - mk.set_message(GREETING) - time_to_autologout = None - #idler = TrainIdler(v) - #idler = GrayIdler(v) - idler = GrayIdler(v,one="*",zero="-") - time_to_idle = None - last_timeout_refresh = None + + setup_idlers(v) + reset_idler(v, vstatus) + + # This main loop was hideous and the work of the devil. + # This has now been fixed (mostly) - mtearle + # + # + # notes for later surgery + # (event, counter, ' ') + # V + # d[ ] = (method) + # + # ( return state - not currently implemented ) while True: if USE_DB: @@ -227,161 +858,34 @@ def run_forever(rfh, wfh, options, cf): except DispenseDatabaseException, e: logging.error('Database error: '+str(e)) - if time_to_autologout != None: - time_left = time_to_autologout - time() - 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 = '' - - if time_to_autologout != None and time_to_autologout - time() <= 0: - time_to_autologout = None - cur_user = '' - cur_pin = '' - cur_selection = '' - mk.set_message(GREETING) - - if time_to_autologout and not mk.done(): time_to_autologout = None - if cur_user == '' and time_to_autologout: time_to_autologout = None - if len(cur_pin) == PIN_LENGTH and mk.done() and time_to_autologout == None: - # start autologout - time_to_autologout = time() + 15 - - 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() - - mk.update_display() - - e = v.next_event(0) - if e == None: - e = v.next_event(0.1) - if e == None: - continue - time_to_idle = None + timeout = time_to_next_update(vstatus) + e = v.next_event(timeout) (event, params) = e - logging.debug('Got event: ' + repr(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)]) - mk.set_messages( - [(' '*10+'INVALID PIN SETUP'+' '*10, False, 3), - (GREETING, False, None)]) - cur_user = '' - cur_pin = '' - continue - cur_pin = '' - mk.set_message('PIN: ') - continue - elif len(cur_pin) < PIN_LENGTH: - if key == 11: - if cur_pin == '': - cur_user = '' - mk.set_message(GREETING) - continue - 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 - 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 = '' - continue - elif len(cur_selection) == 0: - if key == 11: - cur_pin = '' - cur_user = '' - cur_selection = '' - mk.set_messages( - [(center('BYE!'), False, 1.5), - (GREETING, False, None)]) - continue - cur_selection += chr(key + ord('0')) - mk.set_message('SELECT: '+cur_selection) - time_to_autologout = None - elif len(cur_selection) == 1: - if key == 11: - cur_selection = '' - time_to_autologout = 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': - 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': - 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 = '' - time_to_autologout = time() + 8 + + run_handler(event, params, v, vstatus) + +# logging.debug('Got event: ' + repr(e)) + + +def run_handler(event, params, v, vstatus): + handler = get_state_table_handler(vstatus,vstatus.state,event,vstatus.counter) + if handler: + handler(vstatus.state, event, params, v, vstatus) 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)) @@ -395,11 +899,13 @@ def parse_args(): 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') @@ -437,9 +943,7 @@ class VendConfigFile: 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: @@ -458,9 +962,9 @@ def set_stuff_up(): 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 @@ -475,9 +979,10 @@ def clean_up_nicely(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: @@ -487,8 +992,8 @@ def set_up_logging(options): 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) @@ -505,14 +1010,18 @@ def become_daemon(): 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)) @@ -531,13 +1040,15 @@ if __name__ == '__main__': options, config_opts = set_stuff_up() while True: try: - logging.info('Starting Vend Server') + logging.warning('Starting Vend Server') do_vend_server(options, config_opts) - logging.warning('Vend Server finished unexpectedly, restarting') + logging.error('Vend Server finished unexpectedly, restarting') except KeyboardInterrupt: logging.info("Killed by signal, cleaning up") clean_up_nicely(options, config_opts) - logging.info("Vend Server stopped") + logging.warning("Vend Server stopped") + break + except SystemExit: break except: (exc_type, exc_value, exc_traceback) = sys.exc_info()