From: Mark Tearle <mark@tearle.com>
Date: Sat, 8 Nov 2014 14:05:44 +0000 (+0800)
Subject: Move VendServer code up a directory wholesale and rename
X-Git-Tag: HACK-SLAH-BURN-ENDS~1
X-Git-Url: https://git.ucc.asn.au/?a=commitdiff_plain;h=6c130dc942392ccc8b7ffa0ec2ede5f9327f99e6;p=uccvend-vendserver.git

Move VendServer code up a directory wholesale and rename
---

diff --git a/VendServer/.cvsignore b/VendServer/.cvsignore
new file mode 100644
index 0000000..0d20b64
--- /dev/null
+++ b/VendServer/.cvsignore
@@ -0,0 +1 @@
+*.pyc
diff --git a/VendServer/CRC.py b/VendServer/CRC.py
new file mode 100644
index 0000000..512a7bd
--- /dev/null
+++ b/VendServer/CRC.py
@@ -0,0 +1,16 @@
+crctab = []
+CRC16 = 0x1021
+
+def do_crc(message, crc = 0):
+	for i in range(0,len(message)):
+		crc = ((crc << 8) ^ (crctab[(crc >> 8) ^ ord(message[i])])) & 0xffff
+	return crc
+
+# Generate crctab
+for val in range(0,256):
+	crc = val << 8;
+	for i in range(0,8):
+		crc = crc << 1
+		if (crc & 0x10000):
+			crc = crc ^ CRC16
+	crctab.append(crc & 0xffff)
diff --git a/VendServer/DoorClient.py b/VendServer/DoorClient.py
new file mode 100755
index 0000000..d46cebe
--- /dev/null
+++ b/VendServer/DoorClient.py
@@ -0,0 +1,30 @@
+#!/usr/bin/python
+
+from LATClient import LATClient
+from select import select
+import signal
+import sys
+
+def check_door_service(service, test_string="got wombles?"):
+	latclient = LATClient(service=sys.argv[1])
+	latclient.sock.send(test_string)
+	rfh, wfh = latclient.get_fh()
+	wfh.write(test_string)
+	wfh.flush()
+	rr, wr, er = select([rfh], [], [], 10.0)
+	if rfh not in rr: return "open"
+	recv = rfh.read(len(test_string))
+	if recv <> test_string: return "error"
+	return "closed"
+
+if __name__ == '__main__':
+	result_codes = { 'open' : 0, 'closed' : 1, 'error' : 2, 'invalid args' : 3}
+	def return_result(result):
+		print result
+		sys.exit(result_codes[result])
+	def timeout(signum, frame):
+		return_result("error")
+	if len(sys.argv) <> 2: return_result('invalid args')
+	signal.signal(signal.SIGALRM, timeout)
+	signal.alarm(15)
+	return_result(check_door_service(sys.argv[1]))
diff --git a/VendServer/HorizScroll.py b/VendServer/HorizScroll.py
new file mode 100644
index 0000000..d27f7dc
--- /dev/null
+++ b/VendServer/HorizScroll.py
@@ -0,0 +1,46 @@
+#!/usr/bin/env python
+
+import string
+import sys
+import time
+
+class HorizScroll:
+	def __init__(self, text):
+		self.text = text
+		pass
+
+	def expand(self, padding=None, paddingchar=" ", dir=None, wraparound=False):
+		if len(self.text) <= 10:
+			return [text]
+
+		if padding == None:
+			padding = len(self.text) / 2 + 1
+
+		format = "%-" + str(padding) + "." + str(padding) + "s"
+		pad = string.replace(format % " "," ",paddingchar)
+		padtext = self.text + pad
+		if not wraparound:
+			numiters = len(self.text) - 10
+		else:
+			numiters = len(padtext)
+
+		expansion = []
+
+		for x in range(0,numiters):
+			  expansion.append("%-10.10s" % (padtext[x:] + padtext[:x]))
+		
+		if dir == -1:
+			expansion.reverse()
+
+		return expansion
+
+if __name__ == '__main__':
+	h = HorizScroll("hello cruel world")
+	eh = h.expand()
+	while 1:
+		for x in eh:
+			sys.stdout.write("\r")
+			print "%-10.10s" % x,
+			sys.stdout.flush()
+			time.sleep(0.1)
+
diff --git a/VendServer/Idler.py b/VendServer/Idler.py
new file mode 100755
index 0000000..5b66455
--- /dev/null
+++ b/VendServer/Idler.py
@@ -0,0 +1,315 @@
+#!/usr/bin/env python
+
+import string, time, os
+from subprocess import Popen, PIPE
+from random import random
+from MessageKeeper import MessageKeeper
+
+orderings = None
+
+IDLER_TEXT_SPEED=1.8
+
+class Idler:
+	def __init__(self, v):
+		self.v = v
+
+	def next(self):
+		"""Displays next stage of the idler. Returns time to the next step"""
+		return 1
+
+	def reset(self):
+		"""Resets the idler to a known intial state"""
+		pass
+	
+	def finished(self):
+		"""Returns True if the idler is considered finished"""
+		return False
+
+	def affinity(self):
+		"""How much we want this idler to be the next one chosen"""
+		return 1
+
+class GreetingIdler(Idler):
+	def __init__(self, v, secs_to_greeting = None):
+		self.v = v
+		self.secs_to_greeting = secs_to_greeting
+		self.message_displayed = False
+
+	def next(self):
+		if not self.secs_to_greeting is None:
+			x = self.secs_to_greeting
+			self.secs_to_greeting = None
+			return x
+
+		self.v.display('UCC SNACKS')
+		self.message_displayed = True
+		return 5
+
+	def reset(self):
+		self.message_displayed = False
+		self.secs_to_greeting = None
+
+	def finished(self):
+		return self.message_displayed
+
+	def affinity(self):
+		return 0
+
+class TrainIdler(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 reset(self):
+		self.idle_state = 0
+
+class OrderMaker:
+	def __init__(self, n=8):
+		self.n = n
+		self.make_factorials(n)
+	
+	def make_factorials(self, n):
+		self.factorial = []
+		a = 1
+		for i in range(1,n+1):
+			self.factorial.append(a)
+			a *= i
+
+	def order(self, index):
+		used = []
+		for i in range(0,self.n):
+			used.append(i)
+		i = self.n-1
+		j = 0
+		res = []
+		while i >= 0:
+			a = index/self.factorial[i]
+			index %= self.factorial[i]
+			res.append(a+1)
+			i -= 1
+			j += 1
+		for i in range(0,self.n):
+			tmp = used[res[i]-1]
+			for j in range(res[i],self.n):
+				used[j-1] = used[j]
+			res[i] = tmp
+		return res
+
+	def __getitem__(self, i):
+		return self.order(i)
+
+class GrayIdler(Idler):
+	def __init__(self, v, one=None, zero=None, reorder=0):
+		self.bits = 8
+		self.size = 1 << self.bits
+		self.i = 0
+		self.grayCode = 0
+		self.v = v
+		self.one = one
+		self.zero = zero
+		self.reorder = reorder
+		global orderings
+		if not orderings:
+			orderings = OrderMaker()
+
+	def next(self):
+		output = self.do_next_state()
+		# does the next stage of a dance
+		if self.zero:
+			output = string.replace(output, "0", self.zero)
+		if self.one:
+			output = string.replace(output, "1", self.one)
+		if self.reorder:
+			global orderings
+			newoutput = ""
+			for i in range(0,8):
+				newoutput += output[orderings[self.reorder][i]]
+			output = newoutput
+		self.v.display(" %8.8s " % (output))
+		self.i = (self.i + 1) % self.size
+
+	def do_next_state(self):
+		self.grayCode = self.i ^ (self.i >> 1)
+		output = self.dec2bin(self.grayCode)
+
+		return "0"*(self.bits-len(output))+output
+
+
+	def dec2bin(self,num):
+	    """Convert long/integer number to binary string.
+
+	    E.g. dec2bin(12) ==> '1100'.
+	    
+	    from http://starship.python.net/~gherman/playground/decbingray/decbingray.py"""
+
+	    assert num >= 0, "Decimal number must be >= 0!"
+
+	    # Gracefully handle degenerate case.
+	    # (Not really needed, but anyway.)    
+	    if num == 0:
+		return '0'
+
+	    # Find highest value bit.
+	    val, j = 1L, 1L
+	    while val < num:
+		val, j = val*2L, j+1L
+
+	    # Convert.
+	    bin = '' 
+	    i = j - 1
+	    while i + 1L:
+		k = pow(2L, i)
+		if num >= k:
+		    bin = bin + '1'
+		    num = num - k
+		else:
+		    if len(bin) > 0:
+			bin = bin + '0'
+		i = i - 1L
+
+	    return bin
+
+	def reset(self):
+		self.i = 0
+		self.grayCode = 0
+		if self.reorder:
+			self.reorder = int(random()*40319)+1
+
+
+class StringIdler(Idler):
+	def __init__(self, v, text="Hello Cruel World!  ",repeat=True):
+		self.v = v
+		self.mk = MessageKeeper(v)
+		self.text = self.clean_text(text) + "          "
+		
+		msg = [("",False, None),(self.text, repeat, IDLER_TEXT_SPEED)]
+		self.mk.set_messages(msg)
+
+	def clean_text(self, text):
+		# nothing like a bit of good clean text :)
+		valid = string.digits \
+			+ string.letters \
+			+ string.punctuation \
+			+ " "
+		# uppercase it
+		text = string.upper(text)
+		clean = ""
+		for char in text:
+			if char in valid:
+				clean = clean + char
+			else:
+				clean = clean + " "
+		return clean
+
+	def next(self):
+		self.mk.update_display()
+
+	def finished(self):	
+		return self.mk.done()
+
+class ClockIdler(Idler):
+	def __init__(self, v):
+		self.v = v
+		self.last = None
+
+	def next(self):
+		colonchar = ':'
+		if int(time.time()*2) & 1: colonchar = ' '
+		output = time.strftime("%%H%c%%M%c%%S"%(colonchar,colonchar))
+		if output != self.last:
+			self.v.display(" %8.8s " % (output))
+			self.last = output
+
+	def affinity(self):
+		return 3 
+
+class FortuneIdler(StringIdler):
+	def __init__(self, v):
+		fortune = "/usr/games/fortune"
+		text = "I broke my wookie...."
+		if os.access(fortune,os.F_OK|os.X_OK):
+			(lines, unused) = Popen((fortune,), close_fds=True, stdout=PIPE).communicate()
+			text = string.join(lines)
+		StringIdler.__init__(self, v, text,repeat=False)
+
+	def affinity(self):
+		return 20
+
+class PipeIdler(StringIdler):
+	def __init__(self, v, command, args):
+		text = "I ate my cookie...."
+		if os.access(command,os.F_OK|os.X_OK):
+			(lines, unused) = Popen([command,] + args.split(), close_fds=True, stdout=PIPE).communicate()
+			text = string.join(lines)
+		StringIdler.__init__(self, v, text,repeat=False)
+
+	def affinity(self):
+		return 20
+
+class FileIdler(StringIdler):
+	def __init__(self, v, thefile=None, repeat=False, affinity=8):
+		text = "I broke my wookie...."
+		self._affinity = affinity
+
+		if file and os.access(thefile,os.F_OK|os.R_OK):
+			f = file(thefile,'r')
+			text = string.join(f.readlines())
+			f.close()
+		StringIdler.__init__(self, v, text,repeat=repeat)
+
+	def affinity(self):
+		return self._affinity
diff --git a/VendServer/LATClient.py b/VendServer/LATClient.py
new file mode 100644
index 0000000..638d20b
--- /dev/null
+++ b/VendServer/LATClient.py
@@ -0,0 +1,157 @@
+from socket import *
+from select import select
+from os import popen4
+from time import sleep
+import logging
+
+LATCP_SOCKET = '/var/run/latlogin'
+
+LAT_VERSION = '1.22'
+LAT_VERSION = '1.24' # for running on Mermaid. [DAA] 20071107
+LATCP_CMD_VERSION = 8
+LATCP_CMD_TERMINALSESSION = 26
+LATCP_CMD_ERRORMSG = 99
+
+class LATClientException(Exception): pass
+
+def read_for_a_bit(rfh):
+	message = ''
+	while 1:
+		r = select([rfh], [], [], 5.0)[0]
+		if r:
+			try:
+				ch = rfh.read(1)
+			except socket.error:
+				ch = ''
+			if ch == '':
+				break
+			message = message + ch
+		else:
+			break
+	logging.debug("Received message: ", repr(message))
+	return message
+
+def write_and_get_response(rfh, wfh, message, expect_echo=True):
+	logging.debug("Writing message:", repr(message))
+	wfh.write(message+'\r\n')
+	wfh.flush()
+	logging.debug("  --> Sent")
+	response = read_for_a_bit(rfh)
+	if response.find(message) == -1 and expect_echo:
+		raise LATClientException("Talking to DEC server, expected to find original message in echo but didn't")
+	return response
+
+class LATClient:
+	def __init__(self, service = None, node = None, port = None,
+		     localport = None, password = None, is_queued = False,
+		     server_name = '', connect_password='', priv_password=''):
+
+		self.server_name = server_name
+		self.connect_password = connect_password
+		self.priv_password = priv_password
+		
+		self.sock = socket(AF_UNIX, SOCK_STREAM, 0);
+		self.sock.connect(LATCP_SOCKET)
+		self.send_msg(LATCP_CMD_VERSION, LAT_VERSION+'\000')
+		(cmd, msg) = self.read_reply()
+		if service == None: service = ''
+		if node == None: node = ''
+		if port == None: port = ''
+		if localport == None: localport = ''
+		if password == None: password = ''
+		if is_queued == True:
+			is_queued = 1
+		else:
+			is_queued = 0
+		self.send_msg(LATCP_CMD_TERMINALSESSION, '%c%c%s%c%s%c%s%c%s%c%s' % \
+			(is_queued,
+			 len(service), service,
+			 len(node), node,
+			 len(port), port,
+			 len(localport), localport,
+			 len(password), password
+			 ))
+		(cmd, msg) = self.read_reply()
+		if ord(cmd) == LATCP_CMD_ERRORMSG:
+			raise LATClientException(msg)
+
+		self.rfh = self.sock.makefile('r')
+		self.wfh = self.sock.makefile('w')
+
+		r = select([self.rfh], [], [], 2.0)[0]
+		if r:
+			l = self.rfh.readline()
+			if l.find('Service in use') >= 0:
+				logging.warning("Service in use, apparently: restarting DEC server")
+				self.reboot_server()
+
+	def __del__(self):
+		try:
+			self.sock.close()
+			self.sock.shutdown(2)
+		except:
+			pass
+		del self.sock
+
+	def send_msg(self, cmd, msg):
+		self.sock.send('%c%c%c%s'%(cmd, len(msg)/256, len(msg)%256, msg))
+
+	def reboot_server(self):
+		self.sock.shutdown(2)
+		self.sock.close()
+		
+		logging.info('Logging into DEC server')
+		mopw, mopr = popen4('/usr/sbin/moprc '+self.server_name)
+		write_and_get_response(mopr, mopw, '')
+
+		logging.info('Sending password')
+		r = write_and_get_response(mopr, mopw, self.connect_password, False)
+		if r.find('Enter username> ') == -1:
+			logging.warning("Expected username prompt, got " + repr(r))
+			raise LATClientException('failed to reboot server')
+
+		logging.info('Sending username')
+		r = write_and_get_response(mopr, mopw, 'grim reaper')
+		if r.find('Local> ') == -1:
+			logging.warning("Expected DEC server prompt, got " + repr(r))
+			raise LATClientException('failed to reboot server')
+
+		logging.info('Requesting privileges')
+		r = write_and_get_response(mopr, mopw, 'set priv')
+		if r.find('Password> ') == -1:
+			logging.warning("Expected priv password prompt, got " + repr(r))
+			raise LATClientException('failed to reboot server')
+
+		logging.info('Sending password')
+		r = write_and_get_response(mopr, mopw, self.priv_password, False)
+		if r.find('Local> ') == -1:
+			logging.warning("Expected DEC server prompt, got " + repr(r))
+			raise LATClientException('failed to reboot server')
+
+		logging.info('Sending reboot request')
+		r = write_and_get_response(mopr, mopw, 'init del 0')
+		if r.find('Target does not respond') == -1:
+			logging.warning("Expected DEC server to die, got " + repr(r))
+			raise LATClientException('failed to reboot server')
+
+		logging.info('Closed connection to server')
+		mopr.close()
+		mopw.close()
+		logging.info("Waiting 10 seconds for DEC server to come back to life...")
+		sleep(10)
+		logging.info("Rightyo, back to vending!")
+		raise LATClientException('needed to reboot server')
+
+	def read_reply(self):
+		head = self.sock.recv(3)
+		if len(head) != 3:
+			raise LATClientException('Short LAT packet')
+		cmd = head[0]
+		length = ord(head[1])*256 + ord(head[2])
+		msg = self.sock.recv(length)
+		if cmd == LATCP_CMD_ERRORMSG:
+			raise LATClientException('Received LAT error: %s'%msg)
+		return (cmd, msg)
+	
+	def get_fh(self):
+		return (self.rfh, self.wfh)
diff --git a/VendServer/LDAPConnector.py b/VendServer/LDAPConnector.py
new file mode 100644
index 0000000..8699fd2
--- /dev/null
+++ b/VendServer/LDAPConnector.py
@@ -0,0 +1,92 @@
+#!/usr/bin/env python2.4
+
+import ldap
+import ldap.filter
+
+LDAP_TIMEOUT = 10
+
+def get_ldap_connection():
+        ldap.set_option(ldap.OPT_X_TLS_CACERTFILE, '/etc/ssl/UCC-CA.crt')
+        ldap.set_option(ldap.OPT_X_TLS,1)
+        ldap.set_option(ldap.OPT_X_TLS_ALLOW,1)
+        #ldap.set_option(ldap.OPT_DEBUG_LEVEL,255)
+        conn = ldap.initialize('ldaps://mussel.ucc.gu.uwa.edu.au/')
+        
+        binddn = 'cn=mifareagent,ou=profile,dc=ucc,dc=gu,dc=uwa,dc=edu,dc=au'
+        passfile = open('/etc/dispense2/ldap.passwd')
+        password = passfile.readline().strip()
+        passfile.close()
+        
+        conn.simple_bind_s(binddn, password)
+        return conn
+
+def get_uid(card_id):
+        ldapconn = get_ldap_connection()
+        
+        basedn = 'ou=People,dc=ucc,dc=gu,dc=uwa,dc=edu,dc=au'
+        filter = ldap.filter.filter_format('(uccDispenseMIFARE=%s)', (card_id, ))
+        attrs = ('uidNumber',)
+        
+        results = ldapconn.search_st(basedn, ldap.SCOPE_SUBTREE, filter, attrs, timeout=LDAP_TIMEOUT)
+        
+        ldapconn.unbind()
+        
+        if len(results) != 1:
+                raise ValueError, "no UID found for card ID"
+        
+        return results[0][1]['uidNumber'][0]
+
+def get_uname(uid):
+        ldapconn = get_ldap_connection()
+        
+        basedn = 'ou=People,dc=ucc,dc=gu,dc=uwa,dc=edu,dc=au'
+        filter = ldap.filter.filter_format('(uidNumber=%s)', (uid, ))
+        attrs = ('uid',)
+        
+        results = ldapconn.search_st(basedn, ldap.SCOPE_SUBTREE, filter, attrs, timeout=LDAP_TIMEOUT)
+        
+        ldapconn.unbind()
+        
+        if len(results) != 1:
+                raise ValueError, "no username found for user id"
+        
+        return results[0][1]['uid'][0]
+
+def set_card_id(uidNumber, card_id):
+        ldapconn = get_ldap_connection()
+        
+	# fix uidNumber for three/four digit uids
+	uidNumber = str(int(uidNumber))
+        basedn = 'ou=People,dc=ucc,dc=gu,dc=uwa,dc=edu,dc=au'
+        filter = ldap.filter.filter_format('(uidNumber=%s)', (uidNumber, ))
+        attrs = ('objectClass', )
+        
+        results = ldapconn.search_st(basedn, ldap.SCOPE_SUBTREE, filter, attrs, timeout=LDAP_TIMEOUT)
+        
+        if len(results) != 1:
+                raise "ValueError", 'error in uidNumber'
+        
+        user_dn = results[0][0]
+        
+        mod_attrs = []
+        
+        # Does it have the correct object class?
+        if 'uccDispenseAccount' not in results[0][1]['objectClass']:
+                # Add uccDispenseAccount objectclass
+                mod_attrs.append((ldap.MOD_ADD, 'objectClass', 'uccDispenseAccount'))
+        
+        # Add MIFARE Card ID
+        mod_attrs.append((ldap.MOD_ADD, 'uccDispenseMIFARE', card_id))
+        
+        # Use a double-try here to work around something that's fixed in Python 2.5
+        try:
+            try:
+                ldapconn.modify_s(user_dn, mod_attrs)
+            except ldap.TYPE_OR_VALUE_EXISTS, e:
+                pass
+        finally:
+            ldapconn.unbind()
+
+if __name__ == '__main__':
+        set_card_id('11126', '\x01\x02\x03\x04\x05\x06')
+        print get_uid('\x01\x02\x03\x04\x05\x06')
diff --git a/VendServer/MIFAREClient.py b/VendServer/MIFAREClient.py
new file mode 100644
index 0000000..e0b6a6c
--- /dev/null
+++ b/VendServer/MIFAREClient.py
@@ -0,0 +1,44 @@
+from MIFAREDriver import MIFAREReader, MIFAREException
+from serial import Serial
+from LDAPConnector import get_uid, set_card_id
+
+class MIFAREClient:
+    def __init__(self):
+        self.port = Serial('/dev/ttyS2', baudrate = 19200)
+        self.reader = MIFAREReader(self.port)
+        self.reader.set_led(red = False, green = True)
+        self.reader.beep(100)
+    
+    def get_card_id(self):
+        self.reader.set_led(red = True, green = False)
+        try:
+            card_id, capacity = self.reader.select_card()
+        except MIFAREException:
+            self.reader.set_led(red = False, green = True)
+            return None
+        else:
+            self.reader.set_led(red = False, green = True)
+            self.reader.beep(100)
+            return card_id
+    
+    def get_card_uid(self):
+		card_id = self.get_card_id()
+		if card_id == None:
+			return None
+		else:
+			return get_uid(card_id)
+    
+    def add_card(self, uid):
+        self.reader.set_led(red = True, green = False)
+        for attempt in range(5):
+            self.reader.beep(50)
+            try:
+                card_id, capacity = self.reader.select_card()
+            except MIFAREException:
+                pass
+            else:
+                set_card_id(uid, card_id)
+                self.reader.set_led(red = False, green = True)
+                return True
+        self.reader.set_led(red = False, green = True)
+        return False
diff --git a/VendServer/MIFAREDriver.py b/VendServer/MIFAREDriver.py
new file mode 100644
index 0000000..6248f60
--- /dev/null
+++ b/VendServer/MIFAREDriver.py
@@ -0,0 +1,189 @@
+#!/usr/bin/env python2.5
+
+'''mifare - a library for interacting with MIFARE readers.
+Written by David Adam <zanchey@ucc.gu.uwa.edu.au>
+Requires Python 2.5.
+
+Licensed under an MIT-style license: see LICENSE file for details.
+'''
+
+import serial, logging
+
+xor = lambda x, y: x ^ y
+def checksum(string):
+    return chr(reduce(xor, [ord(i) for i in string]))   
+
+
+class MIFAREException(Exception):
+    pass
+
+
+class MIFARECommunicationException(MIFAREException):
+    pass
+
+
+class MIFAREAuthenticationException(MIFAREException):
+    pass
+
+
+class MIFAREReader:
+    '''An interface to a particular MIFARE reader.'''
+    
+    def __init__(self, io):
+        '''Returns an interface to a MIFARE reader given a file-like object.
+        The file-like object is generally a pyserial Serial object.'''
+        self.io = io
+        if isinstance(self.io, serial.Serial):
+            self.io.setTimeout(2)
+        self.address = '\x00\x00'
+    
+    def get_absolute_block(self, vector):
+        if vector[0] < 32:
+            return vector[0] * 4 + vector[1]
+        else:
+            # Sectors below 32 are 4 blocks
+            # Sectors above are 16 blocks
+            # Thus, sector 32 starts at block 128, 33 at 144, and so on
+            return 128 + (vector[0] - 32) * 16 + vector[1]
+        
+    def send_packet(self, data):
+        '''Constructs a packet for the supplied data string, sends it to the
+        MIFARE reader, then returns the response (if any) to the commmand.'''
+        
+        # Occasionally the reader inserts extra trailing characters into its
+        # responses, so flush the buffers if possible beforehand.
+        if isinstance(self.io, serial.Serial):
+            self.io.flushInput()
+            self.io.flushOutput()
+        
+        # XXX - Needs more error checking.
+        data = '\x00' + self.address + data
+        packet = '\xAA\xBB' + chr(len(data)) + data + checksum(data)
+        self.io.write(packet)
+        response = ''
+        header = self.io.read(2)
+        if header == '\xaa\xbb':
+            length = ord(self.io.read(1))
+            data = self.io.read(length)
+            packet_xsum = self.io.read(1)
+            if checksum(data) == packet_xsum and len(data) == length:
+                # Strip off separator and address header
+                return data[3:]
+            else:
+                raise MIFARECommunicationException, "Invalid response received"
+            
+    def set_antenna(self, state = True):
+        """Turn the card reader's antenna on or off (no return value)"""
+        command = '\x0C\x01' + chr(int(state))
+        response = self.send_packet(command)
+        if response == '\x0c\x01\x00':
+            return None
+        else:
+            raise MIFAREException, 'command failed: set_antenna (%s)' % state
+        
+    def select_card(self, include_halted = False):
+        """Selects a card and returns a tuple of  (serial number, capacity).
+        
+        If include_halted is set, may select a card that halt() has previously
+        been called on."""
+        
+        # Request type of card available
+        command = command = '\x01\x02'
+        if include_halted:
+            command += '\x52'
+        else:
+            command += '\x26'
+        
+        card_type_response = self.send_packet(command)
+        
+        if card_type_response == None or card_type_response[2] == '\x14':
+            raise MIFAREException, "select_card: no card available"
+        card_type = card_type_response[3:5]
+        
+        if card_type == '\x44\x00': # MIFARE UltraLight
+            raise NotImplementedError, "UltraLight card selected - no functions available"
+        
+        else:
+        # Otherwise, must be a standard MIFARE card.
+            # Anticollision
+            command = '\x02\x02\x04'
+            # No error handling on this command
+            serial = self.send_packet(command)[3:]
+            
+            # Select the card for use
+            try:
+	        select_response = self.send_packet('\x03\x02' + serial)
+	        capacity = ord(select_response[3])
+            except IndexError:
+	        logging.warning('Tried to select card but failed: card_type %s, serial %s, select_response %s' % (card_type.__repr__(), serial.__repr__(), select_response.__repr__()))
+		capacity = 0
+            return (serial, capacity)
+    
+    def sector_login(self, blockvect, key, keytype=0):
+        """Log in to a block using the six-byte key.
+        
+        Use a keytype of 1 to use key B."""
+        sector = self.get_absolute_block((blockvect[0], 0))
+        
+        if len(key) != 6:
+            raise ValueError, 'key must be a six-byte string'
+        
+        keytype = 96 + keytype
+        
+        data = chr(keytype) + chr(sector) + key
+        
+        result = self.send_packet('\x07\x02' + data)
+        if ord(result[2]) == 22:
+            raise MIFAREAuthenticationException, "incorrect key provided"
+        
+        return
+    
+    def read_block(self, blockvect):
+        "Read the 16-byte block at vector (sector, block)."
+        block = self.get_absolute_block(blockvect)
+        
+        result = self.send_packet('\x08\x02' + chr(block))
+        return result[3:19]
+    
+    def write_block(self, blockvect, data):
+        """Write the 16 bytes in data to the block at vector (sector, block)."""
+        block = self.get_absolute_block(blockvect)
+        if len(data) != 16:
+            raise ValueError, "invalid data length - must be 16 bytes"
+        
+        result = self.send_packet('\x09\x02' + chr(block) + data)
+        return
+    
+    def write_key(self, key):
+        pass
+    
+    def value_block_increment(self, blocknum, increment):
+        pass
+    
+    def value_block_decrement(self, blocknum, decrement):
+        pass
+    
+    def copy_block(self, source, dest):
+        pass
+    
+    def halt(self):
+        """Halt the current card - no further transactions will be performed with it."""
+        self.send_packet('\x04\x02')
+    
+    def set_led(self, red = False, green = False):
+        led_state = 0
+        if red:
+            led_state += 1
+        if green:
+            led_state += 2
+        self.send_packet('\x07\x01' + chr(led_state))
+        
+    def beep(self, length):
+        '''Beep for a specified length of milliseconds.'''
+        length = int(round(length / 10.))
+        if length > 255:
+            length = 255
+        self.send_packet('\x06\x01' + chr(length))
+        
+    def reset(self):
+        pass
diff --git a/VendServer/MessageKeeper.py b/VendServer/MessageKeeper.py
new file mode 100755
index 0000000..60d2b9e
--- /dev/null
+++ b/VendServer/MessageKeeper.py
@@ -0,0 +1,53 @@
+#!/usr/bin/python
+# vim:ts=4
+
+import sys, os, string, re, pwd, signal
+from HorizScroll import HorizScroll
+from random import random, seed
+from time import time, sleep
+
+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, padding = 0):
+		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, wraparound = r)
+				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
+
diff --git a/VendServer/SerialClient.py b/VendServer/SerialClient.py
new file mode 100644
index 0000000..e0a9a7e
--- /dev/null
+++ b/VendServer/SerialClient.py
@@ -0,0 +1,41 @@
+import os, termios
+from time import sleep
+import logging
+from serial import *
+
+class SerialClientException(Exception): pass
+
+class SerialClient:
+	def __init__(self, port = '/dev/ttyS1', baud = 9600):
+		self.ser = Serial(
+			port = port,
+			baudrate = baud,
+			bytesize=EIGHTBITS,     #number of databits
+			parity=PARITY_NONE,     #enable parity checking
+			stopbits=STOPBITS_ONE,  #number of stopbits
+			timeout=10,           #set a timeout value, None for waiting forever, return on read
+			xonxoff=0,              #enable software flow control
+			rtscts=0,               #enable RTS/CTS flow control
+		)
+	
+
+		self.rfh = self.ser
+		self.wfh = self.ser
+		self.wfh.write('B\n')
+
+	def get_fh(self):
+		return (self.rfh, self.wfh)
+
+	def __del__(self):
+	    pass
+
+
+if __name__ == '__main__':
+	s = SerialClient("/dev/ttyS1", 9600)
+	
+	(rfh, wfh) = s.get_fh()
+
+	wfh.write('B\n')
+	print rfh.read()
+
+
diff --git a/VendServer/SnackConfig.py b/VendServer/SnackConfig.py
new file mode 100755
index 0000000..2314074
--- /dev/null
+++ b/VendServer/SnackConfig.py
@@ -0,0 +1,46 @@
+#!/usr/bin/env python
+
+class VendingException( Exception ): pass
+
+import subprocess
+import os, re
+
+def get_snack( slot ):
+	
+	if slot == "--":
+		return (0, 'nothing', 'Nothing')
+	cmd = 'dispense iteminfo snack:%s' % slot
+#	print 'cmd = %s' % cmd
+	try:
+#		info = subprocess.check_output(["dispense","iteminfo",'snack:%s'%slot])
+		raw = os.popen(cmd)
+		info = raw.read()
+		raw.close()
+#		print 'cmd (2) = %s' % cmd
+#		print 'info = "%s"' % info
+		m = re.match("\s*[a-z]+:\d+\s+(\d+)\.(\d\d)\s+([^\n]+)", info)
+		val = ( int(m.group(1))*100 + int(m.group(2)), m.group(3), m.group(3) )
+#		print 'Price: %i, Name: %s' % (val[0], val[1])
+	except BaseException as e:
+		print "BaseException"
+		print e
+		val = (0, 'error', 'Error')
+	except:
+		print "Unknown exception"
+		val = (0, 'error', 'Error')
+	return val
+
+def get_price( slot ):
+		p, sn, n = get_snacks( slot )
+		return p
+
+def get_name( slot ):
+		p, sn, n = get_snacks( slot )
+		return n
+
+def get_short_name( slot ):
+		p, sn, n = get_snacks( slot )
+		return sn
+
+if __name__ == '__main__':
+	print "Don't run this"
diff --git a/VendServer/VendServer.py b/VendServer/VendServer.py
new file mode 100755
index 0000000..2a9a55a
--- /dev/null
+++ b/VendServer/VendServer.py
@@ -0,0 +1,1187 @@
+#!/usr/bin/python
+# vim:ts=4
+
+USE_DB = 0
+USE_MIFARE = 1
+
+import ConfigParser
+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, mktime, localtime
+from subprocess import Popen, PIPE
+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 GreetingIdler,TrainIdler,GrayIdler,StringIdler,ClockIdler,FortuneIdler,FileIdler,PipeIdler
+from SnackConfig import get_snack#, get_snacks
+import socket
+from posix import geteuid
+from LDAPConnector import get_uid,get_uname, set_card_id
+
+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 = 0.8
+IDLE_SPEED = 0.05
+
+class DispenseDatabaseException(Exception): pass
+
+class DispenseDatabase:
+	def __init__(self, vending_machine, host, name, user, password):
+		self.vending_machine = vending_machine
+		self.db = pg.DB(dbname = name, host = host, user = user, passwd = password)
+		self.db.query('LISTEN vend_requests')
+
+	def process_requests(self):
+		logging.debug('database processing')
+		query = 'SELECT request_id, request_slot FROM vend_requests WHERE request_handled = false'
+		try:
+			outstanding = self.db.query(query).getresult()
+		except (pg.error,), db_err:
+			raise DispenseDatabaseException('Failed to query database: %s\n'%(db_err.strip()))
+		for (id, slot) in outstanding:
+			(worked, code, string) = self.vending_machine.vend(slot)
+			logging.debug (str((worked, code, string)))
+			if worked:
+				query = 'SELECT vend_success(%s)'%id
+				self.db.query(query).getresult()
+			else:
+				query = 'SELECT vend_failed(%s)'%id
+				self.db.query(query).getresult()
+
+	def handle_events(self):
+		notifier = self.db.getnotify()
+		while notifier is not None:
+			self.process_requests()
+			notify = self.db.getnotify()
+
+def scroll_options(username, mk, welcome = False):
+	if welcome:
+		# Balance checking
+		acct, unused = Popen(['dispense', 'acct', username], close_fds=True, stdout=PIPE).communicate()
+		# this is fucking appalling
+		balance = acct[acct.find("$")+1:acct.find("(")].strip()
+        
+		msg = [(center('WELCOME'), False, TEXT_SPEED),
+			   (center(username), False, TEXT_SPEED),
+			   (center(balance), False, TEXT_SPEED),]
+	else:
+		msg = []
+	choices = ' '*10+'CHOICES: '
+
+	# Get coke contents
+	cokes = []
+	for i in range(0, 7):
+		args = ('dispense', 'iteminfo', 'coke:%i' % i)
+		info, unused = Popen(args, close_fds=True, stdout=PIPE).communicate()
+		m = re.match("\s*[a-z]+:\d+\s+(\d+)\.(\d\d)\s+([^\n]+)", info)
+		cents = int(m.group(1))*100 + int(m.group(2))
+		cokes.append('%i %i %s' % (i, cents, m.group(3)));
+
+	for c in cokes:
+		c = c.strip()
+		(slot_num, price, slot_name) = c.split(' ', 2)
+		if slot_name == 'dead': continue
+		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 ANOTHER SNACK. '
+	choices += '99 TO READ AGAIN. '
+	choices += 'CHOICE?   '
+	msg.append((choices, False, None))
+	mk.set_messages(msg)
+
+_pin_uid = 0
+_pin_uname = 'root'
+_pin_pin = '----'
+
+def _check_pin(uid, pin):
+	global _pin_uid
+	global _pin_uname
+	global _pin_pin
+	print "_check_pin('",uid,"',---)"
+	if uid != _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:
+			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
+		_pin_uid = uid
+		_pin_pin = pinstr
+		_pin_uname = info.pw_name
+	else:
+		pinstr = _pin_pin
+	if pin == int(pinstr):
+		logging.info("Pin correct for %d",uid)
+	else:
+		logging.info("Pin incorrect for %d",uid)
+	return pin == int(pinstr)
+
+def acct_is_disabled(name=None):
+	global _pin_uname
+	if name == None:
+		name = _pin_uname
+	acct, unused = Popen(['dispense', 'acct', _pin_uname], close_fds=True, stdout=PIPE).communicate()
+	# this is fucking appalling
+	flags = acct[acct.find("(")+1:acct.find(")")].strip()
+	if 'disabled' in flags:
+		return True
+	if 'internal' in flags:
+		return True
+	return False
+
+def has_good_pin(uid):
+	return _check_pin(uid, None) != None
+
+def verify_user_pin(uid, pin, skip_pin_check=False):
+	if skip_pin_check or _check_pin(uid, pin) == True:
+		info = pwd.getpwuid(uid)
+		if skip_pin_check:
+			if acct_is_disabled(info.pw_name):
+				logging.info('refused mifare for disabled acct uid %d (%s)'%(uid,info.pw_name))
+				return '-disabled-'
+			logging.info('accepted mifare for uid %d (%s)'%(uid,info.pw_name))
+		else:
+			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 cookie(v):
+	seed(time())
+	messages = ['  WASSUP! ', 'PINK FISH ', ' SECRETS ', '  ESKIMO  ', ' FORTUNES ', 'MORE MONEY']
+	choice = int(random()*len(messages))
+	msg = messages[choice]
+	left = range(len(msg))
+	for i in range(len(msg)):
+		if msg[i] == ' ': left.remove(i)
+	reveal = 1
+	while left:
+		s = ''
+		for i in range(0, len(msg)):
+			if i in left:
+				if reveal == 0:
+					left.remove(i)
+					s += msg[i]
+				else:
+					s += chr(int(random()*26)+ord('A'))
+				reveal += 1
+				reveal %= 17
+			else:
+				s += msg[i]
+		v.display(s)
+
+def center(str):
+	LEN = 10
+	return ' '*((LEN-len(str))/2)+str
+
+
+
+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),
+		# "Hello World" in brainfuck
+		StringIdler(v, text=">+++++++++[<++++++++>-]<.>+++++++[<++++>-]<+.+++++++..+++.[-]>++++++++[<++++>-] <.>+++++++++++[<++++++++>-]<-.--------.+++.------.--------.[-]>++++++++[<++++>- ]<+.[-]++++++++++."),
+		]
+	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)
+
+	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
+		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:
+				# 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)
+			ret = os.system('dispense -u "%s" 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('dispense -u "%s" coke:%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 = "$%.2f" % ( price / 100.0 )
+		v.display(vstatus.cur_selection+' - %s'%dollarprice)
+#		exitcode = os.system('dispense -u "%s" give \>snacksales %d "%s"'%(vstatus.username, price, name)) >> 8
+#		exitcode = os.system('dispense -u "%s" give \>sales\:snack %d "%s"'%(vstatus.username, price, name)) >> 8
+		exitcode = os.system('dispense -u "%s" snack:%s'%(vstatus.username, vstatus.cur_selection)) >> 8
+		if (exitcode == 0):
+			# magic dispense syslog service
+			syslog.syslog(syslog.LOG_INFO | syslog.LOG_LOCAL4, "vended %s (slot %s) for %s" % (name, vstatus.cur_selection, vstatus.username))
+			(worked, code, string) = v.vend(vstatus.cur_selection)
+			if worked:
+				v.display('THANK YOU')
+			else:
+				print "Vend Failed:", code, string
+				v.display('VEND FAIL')
+		elif (exitcode == 5):	# RV_BALANCE
+			v.display('NO MONEY?')
+		elif (exitcode == 4):	# RV_ARGUMENTS (zero give causes arguments)
+			v.display('EMPTY SLOT')
+		elif (exitcode == 1):	# RV_BADITEM (Dead slot)
+			v.display('EMPTY SLOT')
+		else:
+			syslog.syslog(syslog.LOG_INFO | syslog.LOG_LOCAL4, "failed vending %s (slot %s) for %s (code %d)" % (name, vstatus.cur_selection, vstatus.username, exitcode))
+			v.display('UNK ERROR')
+	sleep(1)
+
+
+def price_check(v, vstatus):
+	if vstatus.cur_selection[1] == '8':
+		args = ('dispense', 'iteminfo', 'coke:' + vstatus.cur_selection[0])
+		info, unused = Popen(args, close_fds=True, stdout=PIPE).communicate()
+		dollarprice = re.match("\s*[a-z]+:\d+\s+(\d+\.\d\d)\s+([^\n]+)", info).group(1)
+	else:
+		# first see if it's a named slot
+		try:
+			price, shortname, name = get_snack( vstatus.cur_selection )
+		except:
+			price, shortname, name = get_snack( '--' )
+		dollarprice = "$%.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.
+
+
+
+
+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
+		
+		if acct_is_disabled():
+			logging.info('user '+vstatus.cur_user+' is disabled')
+			vstatus.mk.set_messages(
+				[(' '*11+'ACCOUNT DISABLED'+' '*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_id = params
+	# Translate card_id into uid.
+	if card_id == None:
+		return
+
+	try:
+		vstatus.cur_user = get_uid(card_id)
+		logging.info('Mapped card id to uid %s'%vstatus.cur_user)
+		vstatus.username = get_uname(vstatus.cur_user)
+		if acct_is_disabled(vstatus.username):
+			vstatus.username = '-disabled-'
+	except ValueError:
+		vstatus.username = None
+	if vstatus.username == '-disabled-':
+		v.beep(40, False)
+		vstatus.mk.set_messages(
+			[(center('ACCT DISABLED'), False, 1.0),
+			 (center('SORRY'), False, 0.5)])
+		vstatus.cur_user = ''
+		vstatus.cur_pin = ''
+		vstatus.username = None
+	
+		reset_idler(v, vstatus, 2)
+		return
+	elif 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 handle_mifare_add_user_event(state, event, params, v, vstatus):
+ 	card_id = params
+
+	# Translate card_id into uid.
+	if card_id == None:
+		return
+
+	try:
+		if get_uid(card_id) != None:
+			vstatus.mk.set_messages(
+				[(center('ALREADY'), False, 0.5),
+				 (center('ENROLLED'), False, 0.5)])
+
+			# scroll_options(vstatus.username, vstatus.mk)
+			return
+	except ValueError:
+		pass
+
+	logging.info('Enrolling card %s to uid %s (%s)'%(card_id, vstatus.cur_user, vstatus.username))
+	set_card_id(vstatus.cur_user, card_id)
+	vstatus.mk.set_messages(
+		[(center('CARD'), False, 0.5),
+		 (center('ENROLLED'), False, 0.5)])
+
+	# scroll_options(vstatus.username, vstatus.mk)
+
+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)] = handle_mifare_add_user_event
+
+	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, USE_MIFARE)
+	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)
+
+	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:
+			try:
+				db.handle_events()
+			except DispenseDatabaseException, e:
+				logging.error('Database error: '+str(e))
+
+		timeout = time_to_next_update(vstatus)
+		e = v.next_event(timeout)
+		(event, params) = e
+
+		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):
+
+	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))
+		rfh = sock.makefile('r')
+		wfh = sock.makefile('w')
+		global USE_MIFARE
+		USE_MIFARE = 0
+		
+	return rfh, wfh
+
+def parse_args():
+	from optparse import OptionParser
+
+	op = OptionParser(usage="%prog [OPTION]...")
+	op.add_option('-f', '--config-file', default='/etc/dispense2/servers.conf', metavar='FILE', dest='config_file', help='use the specified config file instead of /etc/dispense/servers.conf')
+	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', 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')
+	op.add_option('--pid-file', dest='pid_file', metavar='FILE', default='', help='store daemon\'s pid in the given file')
+	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:
+			raise SystemExit("Error reading config file "+config_file+": " + str(e))
+
+def create_pid_file(name):
+	try:
+		pid_file = file(name, 'w')
+		pid_file.write('%d\n'%os.getpid())
+		pid_file.close()
+	except IOError, e:
+		logging.warning('unable to write to pid file '+name+': '+str(e))
+
+def set_stuff_up():
+	def do_nothing(signum, stack):
+		signal.signal(signum, do_nothing)
+	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)
+
+	options = parse_args()
+	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 clean_up_nicely(options, config_opts):
+	if options.pid_file != '':
+		try:
+			os.unlink(options.pid_file)
+			logging.debug('Removed pid file '+options.pid_file)
+		except OSError: pass  # if we can't delete it, meh
+
+def set_up_logging(options):
+	logger = logging.getLogger()
+	
+	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:
+			file_logger = logging.FileHandler(options.log_file)
+			file_logger.setFormatter(logging.Formatter('%(asctime)s %(levelname)s: %(message)s'))
+			logger.addHandler(file_logger)
+		except IOError, e:
+			logger.warning('unable to write to log file '+options.log_file+': '+str(e))
+
+	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)
+
+	if options.quiet:
+		logger.setLevel(logging.WARNING)
+	elif options.verbose:
+		logger.setLevel(logging.DEBUG)
+	else:
+		logger.setLevel(logging.INFO)
+
+def become_daemon():
+	dev_null = file('/dev/null')
+	fd = dev_null.fileno()
+	os.dup2(fd, 0)
+	os.dup2(fd, 1)
+	os.dup2(fd, 2)
+	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 (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))
+			logging.info("Trying again in 5 seconds.")
+			sleep(5)
+			continue
+		
+#		run_forever(rfh, wfh, options, config_opts)
+		
+		try:
+			run_forever(rfh, wfh, options, config_opts)
+		except VendingException:
+			logging.error("Connection died, trying again...")
+			logging.info("Trying again in 5 seconds.")
+			sleep(5)
+
+if __name__ == '__main__':
+	options, config_opts = set_stuff_up()
+	while True:
+		try:
+			logging.warning('Starting Vend Server')
+			do_vend_server(options, config_opts)
+			logging.error('Vend Server finished unexpectedly, restarting')
+		except KeyboardInterrupt:
+			logging.info("Killed by signal, cleaning up")
+			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)
+			del exc_traceback
+			
+			logging.critical("Uh-oh, unhandled " + str(exc_type) + " exception")
+			logging.critical("Message: " + str(exc_value))
+			logging.critical("Traceback:")
+			for event in tb:
+				for line in event.split('\n'):
+					logging.critical('    '+line)
+			logging.critical("This message should be considered a bug in the Vend Server.")
+			logging.critical("Please report this to someone who can fix it.")
+			sleep(10)
+			logging.warning("Trying again anyway (might not help, but hey...)")
+
diff --git a/VendServer/VendingMachine.py b/VendServer/VendingMachine.py
new file mode 100644
index 0000000..e5a0251
--- /dev/null
+++ b/VendServer/VendingMachine.py
@@ -0,0 +1,204 @@
+# vim:ts=4
+import re
+from CRC import do_crc
+from select import select
+import socket, logging
+from time import time, sleep
+from MIFAREClient import MIFAREClient
+
+asynchronous_responses = [	'400', '401', # door open/closed
+				'610',        # switches changed
+				'200', '201', '202', '203', '204', '205', '206',
+				'207', '208', '209', '211', # key presses
+			 ]
+DOOR = 1
+SWITCH = 2
+KEY = 3
+TICK = 4
+MIFARE = 5
+
+class VendingException(Exception): pass
+
+class VendingMachine:
+	def __init__(self, rfh, wfh, use_mifare):
+		self.events = []
+		# Secret
+		self.secret = 'SN4CKZ0RZZZZZZZZ'
+		self.rfh = rfh
+		self.wfh = wfh
+		self.challenge = None
+		# Initialise ourselves into a known state
+		self.wfh.write('\n')
+		self.await_prompt()
+		self.wfh.write('echo off\n')
+		self.await_prompt()
+		self.wfh.write('PING\n')
+		code = ''
+		while code != '000':
+			code = self.get_response()[0]
+		self.get_switches()
+		if use_mifare:
+			self.mifare = MIFAREClient()
+			self.mifare_timeout = 0
+		else:
+			self.mifare = None
+
+	def await_prompt(self):
+		self.wfh.flush()
+		state = 1
+		timeout = 0.5
+		prefix = ''
+		s = ''
+		# mtearle - vending machine was dying wait for a response from
+		# the hardware, suspect it was missing characters
+		#
+		# fixed by migration to pyserial - but future good place to start
+		while True:
+			try:
+				s = self.rfh.read(1)
+			except socket.error:
+				raise VendingException('failed to read input from vending machine')
+			if s == '': raise VendingException('nothing read!')
+			if (s != '#' and s != '%') and state == 1: prefix += s
+			if s == '\n' or s == '\r':
+				state = 1
+				prefix = ''
+			if (s == '#' or s == '%') and state == 1: state = 2
+			if s == ' ' and state == 2:
+				if prefix == '':
+					self.challenge = None
+					return
+				if re.search('^[0-9a-fA-F]{4}$', prefix):
+					self.challenge = int(prefix, 16)
+					return
+
+	def get_response(self, async = False):
+		self.wfh.flush()
+		while True:
+			s = ''
+			while s == '':
+				s = self.rfh.readline()
+				if s == '':
+					raise VendingException('Input socket has closed!')
+				s = s.strip('\r\n')
+			code = s[0:3]
+			text = s[4:]
+			if code in asynchronous_responses:
+				self.handle_event(code, text)
+				if async: return None
+			else:
+				self.await_prompt()
+				return (code, text)
+
+	def get_switches(self):
+		self.wfh.write('S\n')
+		(code, text) = self.get_response()
+		if code != '600':
+			return (False, code, text)
+		self.interpret_switches(text)
+		return (True, code, text)
+
+	def interpret_switches(self, text):
+		self.switches = (int(text[0:2], 16) << 8) | int(text[3:5], 16)
+
+	def handle_event(self, code, text):
+		if code == '400':
+			self.events.append((DOOR, 1))
+		elif code == '401':
+			self.events.append((DOOR, 0))
+		elif code == '610':
+			# NOP this. Nothing handles this yet.
+			#self.events.append((SWITCH, None))
+			self.interpret_switches(text)
+		elif code[0] == '2':
+			self.events.append((KEY, int(code[1:3])))
+		else:
+			logging.warning('Unhandled event! (%s %s)\n'%(code,text))
+
+	def authed_message(self, message):
+		print 'self.challenge = %04x' % self.challenge
+		if self.challenge == None:
+			return message
+		crc = do_crc('%c%c'%(self.challenge >> 8, self.challenge & 0xff))
+		crc = do_crc(self.secret, crc)
+		crc = do_crc(message, crc)
+		print 'output = "%s|%04x"' % (message, crc)
+		return message+'|'+('%04x'%crc)
+
+	def ping(self):
+		self.wfh.write('PING\n')
+		(code, string) = self.get_response()
+		return (code == '000', code, string)
+
+	def vend(self, item):
+		if not re.search('^[0-9][0-9]$', item):
+			return (False, 'Invalid item requested (%s)'%item)
+		self.wfh.write(self.authed_message(('V%s'%item))+'\n')
+		(code, string) = self.get_response()
+		return (code == '100', code, string)
+
+	def beep(self, duration = None, synchronous = True):
+		msg = 'B'
+		if synchronous: msg += 'S'
+		if duration != None:
+			if duration > 255: duration = 255
+			if duration < 1: duration = 1
+			msg += '%02x'%duration
+		self.wfh.write(msg+'\n')
+		(code, string) = self.get_response()
+		return (code == '500', code, string)
+
+	def silence(self, duration = None, synchronous = True):
+		msg = 'C'
+		if synchronous: msg += 'S'
+		if duration != None:
+			if duration > 255: duration = 255
+			if duration < 1: duration = 1
+			msg += '%02x'%duration
+		self.wfh.write(msg+'\n')
+		(code, string) = self.get_response()
+		return (code == '501', code, string)
+
+	def display(self, string):
+		if len(string) > 10:
+			string = string[0:10]
+		string = re.sub('(.)\.', lambda match: '.'+match.group(1), string)
+		self.wfh.write('D'+string+'\n')
+		(code, string) = self.get_response()
+		return (code == '300', code, string)
+
+	def next_event(self, timeout = None):
+		# we don't want to buffer in the serial port, so we get all the events
+		# we can ASAP.
+
+		# Never have no timeout...
+		if timeout == None: timeout = 60*60*24*365
+
+		# Make sure we go through the loop at least once.
+		if timeout < 0: timeout = 0
+
+		while timeout >= 0:
+			this_timeout = min(timeout, 0.2)
+			timeout -= this_timeout
+
+			(r, _, _) = select([self.rfh], [], [], this_timeout)
+			if r:
+				self.get_response(async = True)
+				timeout = 0
+
+			if self.mifare:
+				now = time()
+				if now > self.mifare_timeout:
+					self.mifare_timeout = now + 0.5
+					mifare_uid = self.mifare.get_card_id()
+					if mifare_uid != None:
+						logging.info('Got MIFARE card id %s'%(repr(mifare_uid)))
+						self.events.append((MIFARE, mifare_uid))
+						timeout = 0
+			if timeout == 0:
+				break
+
+		if len(self.events) == 0: return (TICK, time())
+		ret = self.events[0]
+		del self.events[0]
+		return ret
diff --git a/VendServer/servers.conf b/VendServer/servers.conf
new file mode 100644
index 0000000..5919d22
--- /dev/null
+++ b/VendServer/servers.conf
@@ -0,0 +1,15 @@
+
+[Database]
+Server = localhost
+Name = dispense
+
+[VendingMachine]
+DBUser = cameron
+DBPassword = blah
+ServiceName = blah
+Password = foo
+
+[DecServer]
+Name = outside
+ConnectPassword = foo
+PrivPassword = bar
diff --git a/VendServer/snacks.conf b/VendServer/snacks.conf
new file mode 100644
index 0000000..4f036ed
--- /dev/null
+++ b/VendServer/snacks.conf
@@ -0,0 +1,14 @@
+# format:
+# all are whitespace seperated, name can have whitespace.
+# price - in cents
+# slots - comma seperated list of slots with this item.
+#       - don't put any spaces in this
+#       - the magically named '--' slot is the default for 
+#         unadded slots
+# name  - the name, spaces are OK.
+
+# price		slots		dispensename	name
+# eg
+# 550		88,00		5out			$5 withdrawal
+ 550		88,00		5out			$5 withdrawal
+ 110		--			snack			tasty snack
diff --git a/sql-edition/servers/.cvsignore b/sql-edition/servers/.cvsignore
deleted file mode 100644
index 0d20b64..0000000
--- a/sql-edition/servers/.cvsignore
+++ /dev/null
@@ -1 +0,0 @@
-*.pyc
diff --git a/sql-edition/servers/CRC.py b/sql-edition/servers/CRC.py
deleted file mode 100644
index 512a7bd..0000000
--- a/sql-edition/servers/CRC.py
+++ /dev/null
@@ -1,16 +0,0 @@
-crctab = []
-CRC16 = 0x1021
-
-def do_crc(message, crc = 0):
-	for i in range(0,len(message)):
-		crc = ((crc << 8) ^ (crctab[(crc >> 8) ^ ord(message[i])])) & 0xffff
-	return crc
-
-# Generate crctab
-for val in range(0,256):
-	crc = val << 8;
-	for i in range(0,8):
-		crc = crc << 1
-		if (crc & 0x10000):
-			crc = crc ^ CRC16
-	crctab.append(crc & 0xffff)
diff --git a/sql-edition/servers/DoorClient.py b/sql-edition/servers/DoorClient.py
deleted file mode 100755
index d46cebe..0000000
--- a/sql-edition/servers/DoorClient.py
+++ /dev/null
@@ -1,30 +0,0 @@
-#!/usr/bin/python
-
-from LATClient import LATClient
-from select import select
-import signal
-import sys
-
-def check_door_service(service, test_string="got wombles?"):
-	latclient = LATClient(service=sys.argv[1])
-	latclient.sock.send(test_string)
-	rfh, wfh = latclient.get_fh()
-	wfh.write(test_string)
-	wfh.flush()
-	rr, wr, er = select([rfh], [], [], 10.0)
-	if rfh not in rr: return "open"
-	recv = rfh.read(len(test_string))
-	if recv <> test_string: return "error"
-	return "closed"
-
-if __name__ == '__main__':
-	result_codes = { 'open' : 0, 'closed' : 1, 'error' : 2, 'invalid args' : 3}
-	def return_result(result):
-		print result
-		sys.exit(result_codes[result])
-	def timeout(signum, frame):
-		return_result("error")
-	if len(sys.argv) <> 2: return_result('invalid args')
-	signal.signal(signal.SIGALRM, timeout)
-	signal.alarm(15)
-	return_result(check_door_service(sys.argv[1]))
diff --git a/sql-edition/servers/HorizScroll.py b/sql-edition/servers/HorizScroll.py
deleted file mode 100644
index d27f7dc..0000000
--- a/sql-edition/servers/HorizScroll.py
+++ /dev/null
@@ -1,46 +0,0 @@
-#!/usr/bin/env python
-
-import string
-import sys
-import time
-
-class HorizScroll:
-	def __init__(self, text):
-		self.text = text
-		pass
-
-	def expand(self, padding=None, paddingchar=" ", dir=None, wraparound=False):
-		if len(self.text) <= 10:
-			return [text]
-
-		if padding == None:
-			padding = len(self.text) / 2 + 1
-
-		format = "%-" + str(padding) + "." + str(padding) + "s"
-		pad = string.replace(format % " "," ",paddingchar)
-		padtext = self.text + pad
-		if not wraparound:
-			numiters = len(self.text) - 10
-		else:
-			numiters = len(padtext)
-
-		expansion = []
-
-		for x in range(0,numiters):
-			  expansion.append("%-10.10s" % (padtext[x:] + padtext[:x]))
-		
-		if dir == -1:
-			expansion.reverse()
-
-		return expansion
-
-if __name__ == '__main__':
-	h = HorizScroll("hello cruel world")
-	eh = h.expand()
-	while 1:
-		for x in eh:
-			sys.stdout.write("\r")
-			print "%-10.10s" % x,
-			sys.stdout.flush()
-			time.sleep(0.1)
-
diff --git a/sql-edition/servers/Idler.py b/sql-edition/servers/Idler.py
deleted file mode 100755
index 5b66455..0000000
--- a/sql-edition/servers/Idler.py
+++ /dev/null
@@ -1,315 +0,0 @@
-#!/usr/bin/env python
-
-import string, time, os
-from subprocess import Popen, PIPE
-from random import random
-from MessageKeeper import MessageKeeper
-
-orderings = None
-
-IDLER_TEXT_SPEED=1.8
-
-class Idler:
-	def __init__(self, v):
-		self.v = v
-
-	def next(self):
-		"""Displays next stage of the idler. Returns time to the next step"""
-		return 1
-
-	def reset(self):
-		"""Resets the idler to a known intial state"""
-		pass
-	
-	def finished(self):
-		"""Returns True if the idler is considered finished"""
-		return False
-
-	def affinity(self):
-		"""How much we want this idler to be the next one chosen"""
-		return 1
-
-class GreetingIdler(Idler):
-	def __init__(self, v, secs_to_greeting = None):
-		self.v = v
-		self.secs_to_greeting = secs_to_greeting
-		self.message_displayed = False
-
-	def next(self):
-		if not self.secs_to_greeting is None:
-			x = self.secs_to_greeting
-			self.secs_to_greeting = None
-			return x
-
-		self.v.display('UCC SNACKS')
-		self.message_displayed = True
-		return 5
-
-	def reset(self):
-		self.message_displayed = False
-		self.secs_to_greeting = None
-
-	def finished(self):
-		return self.message_displayed
-
-	def affinity(self):
-		return 0
-
-class TrainIdler(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 reset(self):
-		self.idle_state = 0
-
-class OrderMaker:
-	def __init__(self, n=8):
-		self.n = n
-		self.make_factorials(n)
-	
-	def make_factorials(self, n):
-		self.factorial = []
-		a = 1
-		for i in range(1,n+1):
-			self.factorial.append(a)
-			a *= i
-
-	def order(self, index):
-		used = []
-		for i in range(0,self.n):
-			used.append(i)
-		i = self.n-1
-		j = 0
-		res = []
-		while i >= 0:
-			a = index/self.factorial[i]
-			index %= self.factorial[i]
-			res.append(a+1)
-			i -= 1
-			j += 1
-		for i in range(0,self.n):
-			tmp = used[res[i]-1]
-			for j in range(res[i],self.n):
-				used[j-1] = used[j]
-			res[i] = tmp
-		return res
-
-	def __getitem__(self, i):
-		return self.order(i)
-
-class GrayIdler(Idler):
-	def __init__(self, v, one=None, zero=None, reorder=0):
-		self.bits = 8
-		self.size = 1 << self.bits
-		self.i = 0
-		self.grayCode = 0
-		self.v = v
-		self.one = one
-		self.zero = zero
-		self.reorder = reorder
-		global orderings
-		if not orderings:
-			orderings = OrderMaker()
-
-	def next(self):
-		output = self.do_next_state()
-		# does the next stage of a dance
-		if self.zero:
-			output = string.replace(output, "0", self.zero)
-		if self.one:
-			output = string.replace(output, "1", self.one)
-		if self.reorder:
-			global orderings
-			newoutput = ""
-			for i in range(0,8):
-				newoutput += output[orderings[self.reorder][i]]
-			output = newoutput
-		self.v.display(" %8.8s " % (output))
-		self.i = (self.i + 1) % self.size
-
-	def do_next_state(self):
-		self.grayCode = self.i ^ (self.i >> 1)
-		output = self.dec2bin(self.grayCode)
-
-		return "0"*(self.bits-len(output))+output
-
-
-	def dec2bin(self,num):
-	    """Convert long/integer number to binary string.
-
-	    E.g. dec2bin(12) ==> '1100'.
-	    
-	    from http://starship.python.net/~gherman/playground/decbingray/decbingray.py"""
-
-	    assert num >= 0, "Decimal number must be >= 0!"
-
-	    # Gracefully handle degenerate case.
-	    # (Not really needed, but anyway.)    
-	    if num == 0:
-		return '0'
-
-	    # Find highest value bit.
-	    val, j = 1L, 1L
-	    while val < num:
-		val, j = val*2L, j+1L
-
-	    # Convert.
-	    bin = '' 
-	    i = j - 1
-	    while i + 1L:
-		k = pow(2L, i)
-		if num >= k:
-		    bin = bin + '1'
-		    num = num - k
-		else:
-		    if len(bin) > 0:
-			bin = bin + '0'
-		i = i - 1L
-
-	    return bin
-
-	def reset(self):
-		self.i = 0
-		self.grayCode = 0
-		if self.reorder:
-			self.reorder = int(random()*40319)+1
-
-
-class StringIdler(Idler):
-	def __init__(self, v, text="Hello Cruel World!  ",repeat=True):
-		self.v = v
-		self.mk = MessageKeeper(v)
-		self.text = self.clean_text(text) + "          "
-		
-		msg = [("",False, None),(self.text, repeat, IDLER_TEXT_SPEED)]
-		self.mk.set_messages(msg)
-
-	def clean_text(self, text):
-		# nothing like a bit of good clean text :)
-		valid = string.digits \
-			+ string.letters \
-			+ string.punctuation \
-			+ " "
-		# uppercase it
-		text = string.upper(text)
-		clean = ""
-		for char in text:
-			if char in valid:
-				clean = clean + char
-			else:
-				clean = clean + " "
-		return clean
-
-	def next(self):
-		self.mk.update_display()
-
-	def finished(self):	
-		return self.mk.done()
-
-class ClockIdler(Idler):
-	def __init__(self, v):
-		self.v = v
-		self.last = None
-
-	def next(self):
-		colonchar = ':'
-		if int(time.time()*2) & 1: colonchar = ' '
-		output = time.strftime("%%H%c%%M%c%%S"%(colonchar,colonchar))
-		if output != self.last:
-			self.v.display(" %8.8s " % (output))
-			self.last = output
-
-	def affinity(self):
-		return 3 
-
-class FortuneIdler(StringIdler):
-	def __init__(self, v):
-		fortune = "/usr/games/fortune"
-		text = "I broke my wookie...."
-		if os.access(fortune,os.F_OK|os.X_OK):
-			(lines, unused) = Popen((fortune,), close_fds=True, stdout=PIPE).communicate()
-			text = string.join(lines)
-		StringIdler.__init__(self, v, text,repeat=False)
-
-	def affinity(self):
-		return 20
-
-class PipeIdler(StringIdler):
-	def __init__(self, v, command, args):
-		text = "I ate my cookie...."
-		if os.access(command,os.F_OK|os.X_OK):
-			(lines, unused) = Popen([command,] + args.split(), close_fds=True, stdout=PIPE).communicate()
-			text = string.join(lines)
-		StringIdler.__init__(self, v, text,repeat=False)
-
-	def affinity(self):
-		return 20
-
-class FileIdler(StringIdler):
-	def __init__(self, v, thefile=None, repeat=False, affinity=8):
-		text = "I broke my wookie...."
-		self._affinity = affinity
-
-		if file and os.access(thefile,os.F_OK|os.R_OK):
-			f = file(thefile,'r')
-			text = string.join(f.readlines())
-			f.close()
-		StringIdler.__init__(self, v, text,repeat=repeat)
-
-	def affinity(self):
-		return self._affinity
diff --git a/sql-edition/servers/LATClient.py b/sql-edition/servers/LATClient.py
deleted file mode 100644
index 638d20b..0000000
--- a/sql-edition/servers/LATClient.py
+++ /dev/null
@@ -1,157 +0,0 @@
-from socket import *
-from select import select
-from os import popen4
-from time import sleep
-import logging
-
-LATCP_SOCKET = '/var/run/latlogin'
-
-LAT_VERSION = '1.22'
-LAT_VERSION = '1.24' # for running on Mermaid. [DAA] 20071107
-LATCP_CMD_VERSION = 8
-LATCP_CMD_TERMINALSESSION = 26
-LATCP_CMD_ERRORMSG = 99
-
-class LATClientException(Exception): pass
-
-def read_for_a_bit(rfh):
-	message = ''
-	while 1:
-		r = select([rfh], [], [], 5.0)[0]
-		if r:
-			try:
-				ch = rfh.read(1)
-			except socket.error:
-				ch = ''
-			if ch == '':
-				break
-			message = message + ch
-		else:
-			break
-	logging.debug("Received message: ", repr(message))
-	return message
-
-def write_and_get_response(rfh, wfh, message, expect_echo=True):
-	logging.debug("Writing message:", repr(message))
-	wfh.write(message+'\r\n')
-	wfh.flush()
-	logging.debug("  --> Sent")
-	response = read_for_a_bit(rfh)
-	if response.find(message) == -1 and expect_echo:
-		raise LATClientException("Talking to DEC server, expected to find original message in echo but didn't")
-	return response
-
-class LATClient:
-	def __init__(self, service = None, node = None, port = None,
-		     localport = None, password = None, is_queued = False,
-		     server_name = '', connect_password='', priv_password=''):
-
-		self.server_name = server_name
-		self.connect_password = connect_password
-		self.priv_password = priv_password
-		
-		self.sock = socket(AF_UNIX, SOCK_STREAM, 0);
-		self.sock.connect(LATCP_SOCKET)
-		self.send_msg(LATCP_CMD_VERSION, LAT_VERSION+'\000')
-		(cmd, msg) = self.read_reply()
-		if service == None: service = ''
-		if node == None: node = ''
-		if port == None: port = ''
-		if localport == None: localport = ''
-		if password == None: password = ''
-		if is_queued == True:
-			is_queued = 1
-		else:
-			is_queued = 0
-		self.send_msg(LATCP_CMD_TERMINALSESSION, '%c%c%s%c%s%c%s%c%s%c%s' % \
-			(is_queued,
-			 len(service), service,
-			 len(node), node,
-			 len(port), port,
-			 len(localport), localport,
-			 len(password), password
-			 ))
-		(cmd, msg) = self.read_reply()
-		if ord(cmd) == LATCP_CMD_ERRORMSG:
-			raise LATClientException(msg)
-
-		self.rfh = self.sock.makefile('r')
-		self.wfh = self.sock.makefile('w')
-
-		r = select([self.rfh], [], [], 2.0)[0]
-		if r:
-			l = self.rfh.readline()
-			if l.find('Service in use') >= 0:
-				logging.warning("Service in use, apparently: restarting DEC server")
-				self.reboot_server()
-
-	def __del__(self):
-		try:
-			self.sock.close()
-			self.sock.shutdown(2)
-		except:
-			pass
-		del self.sock
-
-	def send_msg(self, cmd, msg):
-		self.sock.send('%c%c%c%s'%(cmd, len(msg)/256, len(msg)%256, msg))
-
-	def reboot_server(self):
-		self.sock.shutdown(2)
-		self.sock.close()
-		
-		logging.info('Logging into DEC server')
-		mopw, mopr = popen4('/usr/sbin/moprc '+self.server_name)
-		write_and_get_response(mopr, mopw, '')
-
-		logging.info('Sending password')
-		r = write_and_get_response(mopr, mopw, self.connect_password, False)
-		if r.find('Enter username> ') == -1:
-			logging.warning("Expected username prompt, got " + repr(r))
-			raise LATClientException('failed to reboot server')
-
-		logging.info('Sending username')
-		r = write_and_get_response(mopr, mopw, 'grim reaper')
-		if r.find('Local> ') == -1:
-			logging.warning("Expected DEC server prompt, got " + repr(r))
-			raise LATClientException('failed to reboot server')
-
-		logging.info('Requesting privileges')
-		r = write_and_get_response(mopr, mopw, 'set priv')
-		if r.find('Password> ') == -1:
-			logging.warning("Expected priv password prompt, got " + repr(r))
-			raise LATClientException('failed to reboot server')
-
-		logging.info('Sending password')
-		r = write_and_get_response(mopr, mopw, self.priv_password, False)
-		if r.find('Local> ') == -1:
-			logging.warning("Expected DEC server prompt, got " + repr(r))
-			raise LATClientException('failed to reboot server')
-
-		logging.info('Sending reboot request')
-		r = write_and_get_response(mopr, mopw, 'init del 0')
-		if r.find('Target does not respond') == -1:
-			logging.warning("Expected DEC server to die, got " + repr(r))
-			raise LATClientException('failed to reboot server')
-
-		logging.info('Closed connection to server')
-		mopr.close()
-		mopw.close()
-		logging.info("Waiting 10 seconds for DEC server to come back to life...")
-		sleep(10)
-		logging.info("Rightyo, back to vending!")
-		raise LATClientException('needed to reboot server')
-
-	def read_reply(self):
-		head = self.sock.recv(3)
-		if len(head) != 3:
-			raise LATClientException('Short LAT packet')
-		cmd = head[0]
-		length = ord(head[1])*256 + ord(head[2])
-		msg = self.sock.recv(length)
-		if cmd == LATCP_CMD_ERRORMSG:
-			raise LATClientException('Received LAT error: %s'%msg)
-		return (cmd, msg)
-	
-	def get_fh(self):
-		return (self.rfh, self.wfh)
diff --git a/sql-edition/servers/LDAPConnector.py b/sql-edition/servers/LDAPConnector.py
deleted file mode 100644
index 8699fd2..0000000
--- a/sql-edition/servers/LDAPConnector.py
+++ /dev/null
@@ -1,92 +0,0 @@
-#!/usr/bin/env python2.4
-
-import ldap
-import ldap.filter
-
-LDAP_TIMEOUT = 10
-
-def get_ldap_connection():
-        ldap.set_option(ldap.OPT_X_TLS_CACERTFILE, '/etc/ssl/UCC-CA.crt')
-        ldap.set_option(ldap.OPT_X_TLS,1)
-        ldap.set_option(ldap.OPT_X_TLS_ALLOW,1)
-        #ldap.set_option(ldap.OPT_DEBUG_LEVEL,255)
-        conn = ldap.initialize('ldaps://mussel.ucc.gu.uwa.edu.au/')
-        
-        binddn = 'cn=mifareagent,ou=profile,dc=ucc,dc=gu,dc=uwa,dc=edu,dc=au'
-        passfile = open('/etc/dispense2/ldap.passwd')
-        password = passfile.readline().strip()
-        passfile.close()
-        
-        conn.simple_bind_s(binddn, password)
-        return conn
-
-def get_uid(card_id):
-        ldapconn = get_ldap_connection()
-        
-        basedn = 'ou=People,dc=ucc,dc=gu,dc=uwa,dc=edu,dc=au'
-        filter = ldap.filter.filter_format('(uccDispenseMIFARE=%s)', (card_id, ))
-        attrs = ('uidNumber',)
-        
-        results = ldapconn.search_st(basedn, ldap.SCOPE_SUBTREE, filter, attrs, timeout=LDAP_TIMEOUT)
-        
-        ldapconn.unbind()
-        
-        if len(results) != 1:
-                raise ValueError, "no UID found for card ID"
-        
-        return results[0][1]['uidNumber'][0]
-
-def get_uname(uid):
-        ldapconn = get_ldap_connection()
-        
-        basedn = 'ou=People,dc=ucc,dc=gu,dc=uwa,dc=edu,dc=au'
-        filter = ldap.filter.filter_format('(uidNumber=%s)', (uid, ))
-        attrs = ('uid',)
-        
-        results = ldapconn.search_st(basedn, ldap.SCOPE_SUBTREE, filter, attrs, timeout=LDAP_TIMEOUT)
-        
-        ldapconn.unbind()
-        
-        if len(results) != 1:
-                raise ValueError, "no username found for user id"
-        
-        return results[0][1]['uid'][0]
-
-def set_card_id(uidNumber, card_id):
-        ldapconn = get_ldap_connection()
-        
-	# fix uidNumber for three/four digit uids
-	uidNumber = str(int(uidNumber))
-        basedn = 'ou=People,dc=ucc,dc=gu,dc=uwa,dc=edu,dc=au'
-        filter = ldap.filter.filter_format('(uidNumber=%s)', (uidNumber, ))
-        attrs = ('objectClass', )
-        
-        results = ldapconn.search_st(basedn, ldap.SCOPE_SUBTREE, filter, attrs, timeout=LDAP_TIMEOUT)
-        
-        if len(results) != 1:
-                raise "ValueError", 'error in uidNumber'
-        
-        user_dn = results[0][0]
-        
-        mod_attrs = []
-        
-        # Does it have the correct object class?
-        if 'uccDispenseAccount' not in results[0][1]['objectClass']:
-                # Add uccDispenseAccount objectclass
-                mod_attrs.append((ldap.MOD_ADD, 'objectClass', 'uccDispenseAccount'))
-        
-        # Add MIFARE Card ID
-        mod_attrs.append((ldap.MOD_ADD, 'uccDispenseMIFARE', card_id))
-        
-        # Use a double-try here to work around something that's fixed in Python 2.5
-        try:
-            try:
-                ldapconn.modify_s(user_dn, mod_attrs)
-            except ldap.TYPE_OR_VALUE_EXISTS, e:
-                pass
-        finally:
-            ldapconn.unbind()
-
-if __name__ == '__main__':
-        set_card_id('11126', '\x01\x02\x03\x04\x05\x06')
-        print get_uid('\x01\x02\x03\x04\x05\x06')
diff --git a/sql-edition/servers/MIFAREClient.py b/sql-edition/servers/MIFAREClient.py
deleted file mode 100644
index e0b6a6c..0000000
--- a/sql-edition/servers/MIFAREClient.py
+++ /dev/null
@@ -1,44 +0,0 @@
-from MIFAREDriver import MIFAREReader, MIFAREException
-from serial import Serial
-from LDAPConnector import get_uid, set_card_id
-
-class MIFAREClient:
-    def __init__(self):
-        self.port = Serial('/dev/ttyS2', baudrate = 19200)
-        self.reader = MIFAREReader(self.port)
-        self.reader.set_led(red = False, green = True)
-        self.reader.beep(100)
-    
-    def get_card_id(self):
-        self.reader.set_led(red = True, green = False)
-        try:
-            card_id, capacity = self.reader.select_card()
-        except MIFAREException:
-            self.reader.set_led(red = False, green = True)
-            return None
-        else:
-            self.reader.set_led(red = False, green = True)
-            self.reader.beep(100)
-            return card_id
-    
-    def get_card_uid(self):
-		card_id = self.get_card_id()
-		if card_id == None:
-			return None
-		else:
-			return get_uid(card_id)
-    
-    def add_card(self, uid):
-        self.reader.set_led(red = True, green = False)
-        for attempt in range(5):
-            self.reader.beep(50)
-            try:
-                card_id, capacity = self.reader.select_card()
-            except MIFAREException:
-                pass
-            else:
-                set_card_id(uid, card_id)
-                self.reader.set_led(red = False, green = True)
-                return True
-        self.reader.set_led(red = False, green = True)
-        return False
diff --git a/sql-edition/servers/MIFAREDriver.py b/sql-edition/servers/MIFAREDriver.py
deleted file mode 100644
index 6248f60..0000000
--- a/sql-edition/servers/MIFAREDriver.py
+++ /dev/null
@@ -1,189 +0,0 @@
-#!/usr/bin/env python2.5
-
-'''mifare - a library for interacting with MIFARE readers.
-Written by David Adam <zanchey@ucc.gu.uwa.edu.au>
-Requires Python 2.5.
-
-Licensed under an MIT-style license: see LICENSE file for details.
-'''
-
-import serial, logging
-
-xor = lambda x, y: x ^ y
-def checksum(string):
-    return chr(reduce(xor, [ord(i) for i in string]))   
-
-
-class MIFAREException(Exception):
-    pass
-
-
-class MIFARECommunicationException(MIFAREException):
-    pass
-
-
-class MIFAREAuthenticationException(MIFAREException):
-    pass
-
-
-class MIFAREReader:
-    '''An interface to a particular MIFARE reader.'''
-    
-    def __init__(self, io):
-        '''Returns an interface to a MIFARE reader given a file-like object.
-        The file-like object is generally a pyserial Serial object.'''
-        self.io = io
-        if isinstance(self.io, serial.Serial):
-            self.io.setTimeout(2)
-        self.address = '\x00\x00'
-    
-    def get_absolute_block(self, vector):
-        if vector[0] < 32:
-            return vector[0] * 4 + vector[1]
-        else:
-            # Sectors below 32 are 4 blocks
-            # Sectors above are 16 blocks
-            # Thus, sector 32 starts at block 128, 33 at 144, and so on
-            return 128 + (vector[0] - 32) * 16 + vector[1]
-        
-    def send_packet(self, data):
-        '''Constructs a packet for the supplied data string, sends it to the
-        MIFARE reader, then returns the response (if any) to the commmand.'''
-        
-        # Occasionally the reader inserts extra trailing characters into its
-        # responses, so flush the buffers if possible beforehand.
-        if isinstance(self.io, serial.Serial):
-            self.io.flushInput()
-            self.io.flushOutput()
-        
-        # XXX - Needs more error checking.
-        data = '\x00' + self.address + data
-        packet = '\xAA\xBB' + chr(len(data)) + data + checksum(data)
-        self.io.write(packet)
-        response = ''
-        header = self.io.read(2)
-        if header == '\xaa\xbb':
-            length = ord(self.io.read(1))
-            data = self.io.read(length)
-            packet_xsum = self.io.read(1)
-            if checksum(data) == packet_xsum and len(data) == length:
-                # Strip off separator and address header
-                return data[3:]
-            else:
-                raise MIFARECommunicationException, "Invalid response received"
-            
-    def set_antenna(self, state = True):
-        """Turn the card reader's antenna on or off (no return value)"""
-        command = '\x0C\x01' + chr(int(state))
-        response = self.send_packet(command)
-        if response == '\x0c\x01\x00':
-            return None
-        else:
-            raise MIFAREException, 'command failed: set_antenna (%s)' % state
-        
-    def select_card(self, include_halted = False):
-        """Selects a card and returns a tuple of  (serial number, capacity).
-        
-        If include_halted is set, may select a card that halt() has previously
-        been called on."""
-        
-        # Request type of card available
-        command = command = '\x01\x02'
-        if include_halted:
-            command += '\x52'
-        else:
-            command += '\x26'
-        
-        card_type_response = self.send_packet(command)
-        
-        if card_type_response == None or card_type_response[2] == '\x14':
-            raise MIFAREException, "select_card: no card available"
-        card_type = card_type_response[3:5]
-        
-        if card_type == '\x44\x00': # MIFARE UltraLight
-            raise NotImplementedError, "UltraLight card selected - no functions available"
-        
-        else:
-        # Otherwise, must be a standard MIFARE card.
-            # Anticollision
-            command = '\x02\x02\x04'
-            # No error handling on this command
-            serial = self.send_packet(command)[3:]
-            
-            # Select the card for use
-            try:
-	        select_response = self.send_packet('\x03\x02' + serial)
-	        capacity = ord(select_response[3])
-            except IndexError:
-	        logging.warning('Tried to select card but failed: card_type %s, serial %s, select_response %s' % (card_type.__repr__(), serial.__repr__(), select_response.__repr__()))
-		capacity = 0
-            return (serial, capacity)
-    
-    def sector_login(self, blockvect, key, keytype=0):
-        """Log in to a block using the six-byte key.
-        
-        Use a keytype of 1 to use key B."""
-        sector = self.get_absolute_block((blockvect[0], 0))
-        
-        if len(key) != 6:
-            raise ValueError, 'key must be a six-byte string'
-        
-        keytype = 96 + keytype
-        
-        data = chr(keytype) + chr(sector) + key
-        
-        result = self.send_packet('\x07\x02' + data)
-        if ord(result[2]) == 22:
-            raise MIFAREAuthenticationException, "incorrect key provided"
-        
-        return
-    
-    def read_block(self, blockvect):
-        "Read the 16-byte block at vector (sector, block)."
-        block = self.get_absolute_block(blockvect)
-        
-        result = self.send_packet('\x08\x02' + chr(block))
-        return result[3:19]
-    
-    def write_block(self, blockvect, data):
-        """Write the 16 bytes in data to the block at vector (sector, block)."""
-        block = self.get_absolute_block(blockvect)
-        if len(data) != 16:
-            raise ValueError, "invalid data length - must be 16 bytes"
-        
-        result = self.send_packet('\x09\x02' + chr(block) + data)
-        return
-    
-    def write_key(self, key):
-        pass
-    
-    def value_block_increment(self, blocknum, increment):
-        pass
-    
-    def value_block_decrement(self, blocknum, decrement):
-        pass
-    
-    def copy_block(self, source, dest):
-        pass
-    
-    def halt(self):
-        """Halt the current card - no further transactions will be performed with it."""
-        self.send_packet('\x04\x02')
-    
-    def set_led(self, red = False, green = False):
-        led_state = 0
-        if red:
-            led_state += 1
-        if green:
-            led_state += 2
-        self.send_packet('\x07\x01' + chr(led_state))
-        
-    def beep(self, length):
-        '''Beep for a specified length of milliseconds.'''
-        length = int(round(length / 10.))
-        if length > 255:
-            length = 255
-        self.send_packet('\x06\x01' + chr(length))
-        
-    def reset(self):
-        pass
diff --git a/sql-edition/servers/MessageKeeper.py b/sql-edition/servers/MessageKeeper.py
deleted file mode 100755
index 60d2b9e..0000000
--- a/sql-edition/servers/MessageKeeper.py
+++ /dev/null
@@ -1,53 +0,0 @@
-#!/usr/bin/python
-# vim:ts=4
-
-import sys, os, string, re, pwd, signal
-from HorizScroll import HorizScroll
-from random import random, seed
-from time import time, sleep
-
-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, padding = 0):
-		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, wraparound = r)
-				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
-
diff --git a/sql-edition/servers/SerialClient.py b/sql-edition/servers/SerialClient.py
deleted file mode 100644
index e0a9a7e..0000000
--- a/sql-edition/servers/SerialClient.py
+++ /dev/null
@@ -1,41 +0,0 @@
-import os, termios
-from time import sleep
-import logging
-from serial import *
-
-class SerialClientException(Exception): pass
-
-class SerialClient:
-	def __init__(self, port = '/dev/ttyS1', baud = 9600):
-		self.ser = Serial(
-			port = port,
-			baudrate = baud,
-			bytesize=EIGHTBITS,     #number of databits
-			parity=PARITY_NONE,     #enable parity checking
-			stopbits=STOPBITS_ONE,  #number of stopbits
-			timeout=10,           #set a timeout value, None for waiting forever, return on read
-			xonxoff=0,              #enable software flow control
-			rtscts=0,               #enable RTS/CTS flow control
-		)
-	
-
-		self.rfh = self.ser
-		self.wfh = self.ser
-		self.wfh.write('B\n')
-
-	def get_fh(self):
-		return (self.rfh, self.wfh)
-
-	def __del__(self):
-	    pass
-
-
-if __name__ == '__main__':
-	s = SerialClient("/dev/ttyS1", 9600)
-	
-	(rfh, wfh) = s.get_fh()
-
-	wfh.write('B\n')
-	print rfh.read()
-
-
diff --git a/sql-edition/servers/SnackConfig.py b/sql-edition/servers/SnackConfig.py
deleted file mode 100755
index 2314074..0000000
--- a/sql-edition/servers/SnackConfig.py
+++ /dev/null
@@ -1,46 +0,0 @@
-#!/usr/bin/env python
-
-class VendingException( Exception ): pass
-
-import subprocess
-import os, re
-
-def get_snack( slot ):
-	
-	if slot == "--":
-		return (0, 'nothing', 'Nothing')
-	cmd = 'dispense iteminfo snack:%s' % slot
-#	print 'cmd = %s' % cmd
-	try:
-#		info = subprocess.check_output(["dispense","iteminfo",'snack:%s'%slot])
-		raw = os.popen(cmd)
-		info = raw.read()
-		raw.close()
-#		print 'cmd (2) = %s' % cmd
-#		print 'info = "%s"' % info
-		m = re.match("\s*[a-z]+:\d+\s+(\d+)\.(\d\d)\s+([^\n]+)", info)
-		val = ( int(m.group(1))*100 + int(m.group(2)), m.group(3), m.group(3) )
-#		print 'Price: %i, Name: %s' % (val[0], val[1])
-	except BaseException as e:
-		print "BaseException"
-		print e
-		val = (0, 'error', 'Error')
-	except:
-		print "Unknown exception"
-		val = (0, 'error', 'Error')
-	return val
-
-def get_price( slot ):
-		p, sn, n = get_snacks( slot )
-		return p
-
-def get_name( slot ):
-		p, sn, n = get_snacks( slot )
-		return n
-
-def get_short_name( slot ):
-		p, sn, n = get_snacks( slot )
-		return sn
-
-if __name__ == '__main__':
-	print "Don't run this"
diff --git a/sql-edition/servers/VendServer.py b/sql-edition/servers/VendServer.py
deleted file mode 100755
index 2a9a55a..0000000
--- a/sql-edition/servers/VendServer.py
+++ /dev/null
@@ -1,1187 +0,0 @@
-#!/usr/bin/python
-# vim:ts=4
-
-USE_DB = 0
-USE_MIFARE = 1
-
-import ConfigParser
-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, mktime, localtime
-from subprocess import Popen, PIPE
-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 GreetingIdler,TrainIdler,GrayIdler,StringIdler,ClockIdler,FortuneIdler,FileIdler,PipeIdler
-from SnackConfig import get_snack#, get_snacks
-import socket
-from posix import geteuid
-from LDAPConnector import get_uid,get_uname, set_card_id
-
-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 = 0.8
-IDLE_SPEED = 0.05
-
-class DispenseDatabaseException(Exception): pass
-
-class DispenseDatabase:
-	def __init__(self, vending_machine, host, name, user, password):
-		self.vending_machine = vending_machine
-		self.db = pg.DB(dbname = name, host = host, user = user, passwd = password)
-		self.db.query('LISTEN vend_requests')
-
-	def process_requests(self):
-		logging.debug('database processing')
-		query = 'SELECT request_id, request_slot FROM vend_requests WHERE request_handled = false'
-		try:
-			outstanding = self.db.query(query).getresult()
-		except (pg.error,), db_err:
-			raise DispenseDatabaseException('Failed to query database: %s\n'%(db_err.strip()))
-		for (id, slot) in outstanding:
-			(worked, code, string) = self.vending_machine.vend(slot)
-			logging.debug (str((worked, code, string)))
-			if worked:
-				query = 'SELECT vend_success(%s)'%id
-				self.db.query(query).getresult()
-			else:
-				query = 'SELECT vend_failed(%s)'%id
-				self.db.query(query).getresult()
-
-	def handle_events(self):
-		notifier = self.db.getnotify()
-		while notifier is not None:
-			self.process_requests()
-			notify = self.db.getnotify()
-
-def scroll_options(username, mk, welcome = False):
-	if welcome:
-		# Balance checking
-		acct, unused = Popen(['dispense', 'acct', username], close_fds=True, stdout=PIPE).communicate()
-		# this is fucking appalling
-		balance = acct[acct.find("$")+1:acct.find("(")].strip()
-        
-		msg = [(center('WELCOME'), False, TEXT_SPEED),
-			   (center(username), False, TEXT_SPEED),
-			   (center(balance), False, TEXT_SPEED),]
-	else:
-		msg = []
-	choices = ' '*10+'CHOICES: '
-
-	# Get coke contents
-	cokes = []
-	for i in range(0, 7):
-		args = ('dispense', 'iteminfo', 'coke:%i' % i)
-		info, unused = Popen(args, close_fds=True, stdout=PIPE).communicate()
-		m = re.match("\s*[a-z]+:\d+\s+(\d+)\.(\d\d)\s+([^\n]+)", info)
-		cents = int(m.group(1))*100 + int(m.group(2))
-		cokes.append('%i %i %s' % (i, cents, m.group(3)));
-
-	for c in cokes:
-		c = c.strip()
-		(slot_num, price, slot_name) = c.split(' ', 2)
-		if slot_name == 'dead': continue
-		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 ANOTHER SNACK. '
-	choices += '99 TO READ AGAIN. '
-	choices += 'CHOICE?   '
-	msg.append((choices, False, None))
-	mk.set_messages(msg)
-
-_pin_uid = 0
-_pin_uname = 'root'
-_pin_pin = '----'
-
-def _check_pin(uid, pin):
-	global _pin_uid
-	global _pin_uname
-	global _pin_pin
-	print "_check_pin('",uid,"',---)"
-	if uid != _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:
-			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
-		_pin_uid = uid
-		_pin_pin = pinstr
-		_pin_uname = info.pw_name
-	else:
-		pinstr = _pin_pin
-	if pin == int(pinstr):
-		logging.info("Pin correct for %d",uid)
-	else:
-		logging.info("Pin incorrect for %d",uid)
-	return pin == int(pinstr)
-
-def acct_is_disabled(name=None):
-	global _pin_uname
-	if name == None:
-		name = _pin_uname
-	acct, unused = Popen(['dispense', 'acct', _pin_uname], close_fds=True, stdout=PIPE).communicate()
-	# this is fucking appalling
-	flags = acct[acct.find("(")+1:acct.find(")")].strip()
-	if 'disabled' in flags:
-		return True
-	if 'internal' in flags:
-		return True
-	return False
-
-def has_good_pin(uid):
-	return _check_pin(uid, None) != None
-
-def verify_user_pin(uid, pin, skip_pin_check=False):
-	if skip_pin_check or _check_pin(uid, pin) == True:
-		info = pwd.getpwuid(uid)
-		if skip_pin_check:
-			if acct_is_disabled(info.pw_name):
-				logging.info('refused mifare for disabled acct uid %d (%s)'%(uid,info.pw_name))
-				return '-disabled-'
-			logging.info('accepted mifare for uid %d (%s)'%(uid,info.pw_name))
-		else:
-			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 cookie(v):
-	seed(time())
-	messages = ['  WASSUP! ', 'PINK FISH ', ' SECRETS ', '  ESKIMO  ', ' FORTUNES ', 'MORE MONEY']
-	choice = int(random()*len(messages))
-	msg = messages[choice]
-	left = range(len(msg))
-	for i in range(len(msg)):
-		if msg[i] == ' ': left.remove(i)
-	reveal = 1
-	while left:
-		s = ''
-		for i in range(0, len(msg)):
-			if i in left:
-				if reveal == 0:
-					left.remove(i)
-					s += msg[i]
-				else:
-					s += chr(int(random()*26)+ord('A'))
-				reveal += 1
-				reveal %= 17
-			else:
-				s += msg[i]
-		v.display(s)
-
-def center(str):
-	LEN = 10
-	return ' '*((LEN-len(str))/2)+str
-
-
-
-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),
-		# "Hello World" in brainfuck
-		StringIdler(v, text=">+++++++++[<++++++++>-]<.>+++++++[<++++>-]<+.+++++++..+++.[-]>++++++++[<++++>-] <.>+++++++++++[<++++++++>-]<-.--------.+++.------.--------.[-]>++++++++[<++++>- ]<+.[-]++++++++++."),
-		]
-	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)
-
-	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
-		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:
-				# 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)
-			ret = os.system('dispense -u "%s" 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('dispense -u "%s" coke:%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('dispense -u "%s" give \>snacksales %d "%s"'%(vstatus.username, price, name)) >> 8
-#		exitcode = os.system('dispense -u "%s" give \>sales\:snack %d "%s"'%(vstatus.username, price, name)) >> 8
-		exitcode = os.system('dispense -u "%s" snack:%s'%(vstatus.username, vstatus.cur_selection)) >> 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))
-			(worked, code, string) = v.vend(vstatus.cur_selection)
-			if worked:
-				v.display('THANK YOU')
-			else:
-				print "Vend Failed:", code, string
-				v.display('VEND FAIL')
-		elif (exitcode == 5):	# RV_BALANCE
-			v.display('NO MONEY?')
-		elif (exitcode == 4):	# RV_ARGUMENTS (zero give causes arguments)
-			v.display('EMPTY SLOT')
-		elif (exitcode == 1):	# RV_BADITEM (Dead slot)
-			v.display('EMPTY SLOT')
-		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('UNK ERROR')
-	sleep(1)
-
-
-def price_check(v, vstatus):
-	if vstatus.cur_selection[1] == '8':
-		args = ('dispense', 'iteminfo', 'coke:' + vstatus.cur_selection[0])
-		info, unused = Popen(args, close_fds=True, stdout=PIPE).communicate()
-		dollarprice = re.match("\s*[a-z]+:\d+\s+(\d+\.\d\d)\s+([^\n]+)", info).group(1)
-	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.
-
-
-
-
-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
-		
-		if acct_is_disabled():
-			logging.info('user '+vstatus.cur_user+' is disabled')
-			vstatus.mk.set_messages(
-				[(' '*11+'ACCOUNT DISABLED'+' '*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_id = params
-	# Translate card_id into uid.
-	if card_id == None:
-		return
-
-	try:
-		vstatus.cur_user = get_uid(card_id)
-		logging.info('Mapped card id to uid %s'%vstatus.cur_user)
-		vstatus.username = get_uname(vstatus.cur_user)
-		if acct_is_disabled(vstatus.username):
-			vstatus.username = '-disabled-'
-	except ValueError:
-		vstatus.username = None
-	if vstatus.username == '-disabled-':
-		v.beep(40, False)
-		vstatus.mk.set_messages(
-			[(center('ACCT DISABLED'), False, 1.0),
-			 (center('SORRY'), False, 0.5)])
-		vstatus.cur_user = ''
-		vstatus.cur_pin = ''
-		vstatus.username = None
-	
-		reset_idler(v, vstatus, 2)
-		return
-	elif 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 handle_mifare_add_user_event(state, event, params, v, vstatus):
- 	card_id = params
-
-	# Translate card_id into uid.
-	if card_id == None:
-		return
-
-	try:
-		if get_uid(card_id) != None:
-			vstatus.mk.set_messages(
-				[(center('ALREADY'), False, 0.5),
-				 (center('ENROLLED'), False, 0.5)])
-
-			# scroll_options(vstatus.username, vstatus.mk)
-			return
-	except ValueError:
-		pass
-
-	logging.info('Enrolling card %s to uid %s (%s)'%(card_id, vstatus.cur_user, vstatus.username))
-	set_card_id(vstatus.cur_user, card_id)
-	vstatus.mk.set_messages(
-		[(center('CARD'), False, 0.5),
-		 (center('ENROLLED'), False, 0.5)])
-
-	# scroll_options(vstatus.username, vstatus.mk)
-
-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)] = handle_mifare_add_user_event
-
-	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, USE_MIFARE)
-	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)
-
-	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:
-			try:
-				db.handle_events()
-			except DispenseDatabaseException, e:
-				logging.error('Database error: '+str(e))
-
-		timeout = time_to_next_update(vstatus)
-		e = v.next_event(timeout)
-		(event, params) = e
-
-		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):
-
-	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))
-		rfh = sock.makefile('r')
-		wfh = sock.makefile('w')
-		global USE_MIFARE
-		USE_MIFARE = 0
-		
-	return rfh, wfh
-
-def parse_args():
-	from optparse import OptionParser
-
-	op = OptionParser(usage="%prog [OPTION]...")
-	op.add_option('-f', '--config-file', default='/etc/dispense2/servers.conf', metavar='FILE', dest='config_file', help='use the specified config file instead of /etc/dispense/servers.conf')
-	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', 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')
-	op.add_option('--pid-file', dest='pid_file', metavar='FILE', default='', help='store daemon\'s pid in the given file')
-	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:
-			raise SystemExit("Error reading config file "+config_file+": " + str(e))
-
-def create_pid_file(name):
-	try:
-		pid_file = file(name, 'w')
-		pid_file.write('%d\n'%os.getpid())
-		pid_file.close()
-	except IOError, e:
-		logging.warning('unable to write to pid file '+name+': '+str(e))
-
-def set_stuff_up():
-	def do_nothing(signum, stack):
-		signal.signal(signum, do_nothing)
-	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)
-
-	options = parse_args()
-	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 clean_up_nicely(options, config_opts):
-	if options.pid_file != '':
-		try:
-			os.unlink(options.pid_file)
-			logging.debug('Removed pid file '+options.pid_file)
-		except OSError: pass  # if we can't delete it, meh
-
-def set_up_logging(options):
-	logger = logging.getLogger()
-	
-	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:
-			file_logger = logging.FileHandler(options.log_file)
-			file_logger.setFormatter(logging.Formatter('%(asctime)s %(levelname)s: %(message)s'))
-			logger.addHandler(file_logger)
-		except IOError, e:
-			logger.warning('unable to write to log file '+options.log_file+': '+str(e))
-
-	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)
-
-	if options.quiet:
-		logger.setLevel(logging.WARNING)
-	elif options.verbose:
-		logger.setLevel(logging.DEBUG)
-	else:
-		logger.setLevel(logging.INFO)
-
-def become_daemon():
-	dev_null = file('/dev/null')
-	fd = dev_null.fileno()
-	os.dup2(fd, 0)
-	os.dup2(fd, 1)
-	os.dup2(fd, 2)
-	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 (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))
-			logging.info("Trying again in 5 seconds.")
-			sleep(5)
-			continue
-		
-#		run_forever(rfh, wfh, options, config_opts)
-		
-		try:
-			run_forever(rfh, wfh, options, config_opts)
-		except VendingException:
-			logging.error("Connection died, trying again...")
-			logging.info("Trying again in 5 seconds.")
-			sleep(5)
-
-if __name__ == '__main__':
-	options, config_opts = set_stuff_up()
-	while True:
-		try:
-			logging.warning('Starting Vend Server')
-			do_vend_server(options, config_opts)
-			logging.error('Vend Server finished unexpectedly, restarting')
-		except KeyboardInterrupt:
-			logging.info("Killed by signal, cleaning up")
-			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)
-			del exc_traceback
-			
-			logging.critical("Uh-oh, unhandled " + str(exc_type) + " exception")
-			logging.critical("Message: " + str(exc_value))
-			logging.critical("Traceback:")
-			for event in tb:
-				for line in event.split('\n'):
-					logging.critical('    '+line)
-			logging.critical("This message should be considered a bug in the Vend Server.")
-			logging.critical("Please report this to someone who can fix it.")
-			sleep(10)
-			logging.warning("Trying again anyway (might not help, but hey...)")
-
diff --git a/sql-edition/servers/VendingMachine.py b/sql-edition/servers/VendingMachine.py
deleted file mode 100644
index e5a0251..0000000
--- a/sql-edition/servers/VendingMachine.py
+++ /dev/null
@@ -1,204 +0,0 @@
-# vim:ts=4
-import re
-from CRC import do_crc
-from select import select
-import socket, logging
-from time import time, sleep
-from MIFAREClient import MIFAREClient
-
-asynchronous_responses = [	'400', '401', # door open/closed
-				'610',        # switches changed
-				'200', '201', '202', '203', '204', '205', '206',
-				'207', '208', '209', '211', # key presses
-			 ]
-DOOR = 1
-SWITCH = 2
-KEY = 3
-TICK = 4
-MIFARE = 5
-
-class VendingException(Exception): pass
-
-class VendingMachine:
-	def __init__(self, rfh, wfh, use_mifare):
-		self.events = []
-		# Secret
-		self.secret = 'SN4CKZ0RZZZZZZZZ'
-		self.rfh = rfh
-		self.wfh = wfh
-		self.challenge = None
-		# Initialise ourselves into a known state
-		self.wfh.write('\n')
-		self.await_prompt()
-		self.wfh.write('echo off\n')
-		self.await_prompt()
-		self.wfh.write('PING\n')
-		code = ''
-		while code != '000':
-			code = self.get_response()[0]
-		self.get_switches()
-		if use_mifare:
-			self.mifare = MIFAREClient()
-			self.mifare_timeout = 0
-		else:
-			self.mifare = None
-
-	def await_prompt(self):
-		self.wfh.flush()
-		state = 1
-		timeout = 0.5
-		prefix = ''
-		s = ''
-		# mtearle - vending machine was dying wait for a response from
-		# the hardware, suspect it was missing characters
-		#
-		# fixed by migration to pyserial - but future good place to start
-		while True:
-			try:
-				s = self.rfh.read(1)
-			except socket.error:
-				raise VendingException('failed to read input from vending machine')
-			if s == '': raise VendingException('nothing read!')
-			if (s != '#' and s != '%') and state == 1: prefix += s
-			if s == '\n' or s == '\r':
-				state = 1
-				prefix = ''
-			if (s == '#' or s == '%') and state == 1: state = 2
-			if s == ' ' and state == 2:
-				if prefix == '':
-					self.challenge = None
-					return
-				if re.search('^[0-9a-fA-F]{4}$', prefix):
-					self.challenge = int(prefix, 16)
-					return
-
-	def get_response(self, async = False):
-		self.wfh.flush()
-		while True:
-			s = ''
-			while s == '':
-				s = self.rfh.readline()
-				if s == '':
-					raise VendingException('Input socket has closed!')
-				s = s.strip('\r\n')
-			code = s[0:3]
-			text = s[4:]
-			if code in asynchronous_responses:
-				self.handle_event(code, text)
-				if async: return None
-			else:
-				self.await_prompt()
-				return (code, text)
-
-	def get_switches(self):
-		self.wfh.write('S\n')
-		(code, text) = self.get_response()
-		if code != '600':
-			return (False, code, text)
-		self.interpret_switches(text)
-		return (True, code, text)
-
-	def interpret_switches(self, text):
-		self.switches = (int(text[0:2], 16) << 8) | int(text[3:5], 16)
-
-	def handle_event(self, code, text):
-		if code == '400':
-			self.events.append((DOOR, 1))
-		elif code == '401':
-			self.events.append((DOOR, 0))
-		elif code == '610':
-			# NOP this. Nothing handles this yet.
-			#self.events.append((SWITCH, None))
-			self.interpret_switches(text)
-		elif code[0] == '2':
-			self.events.append((KEY, int(code[1:3])))
-		else:
-			logging.warning('Unhandled event! (%s %s)\n'%(code,text))
-
-	def authed_message(self, message):
-		print 'self.challenge = %04x' % self.challenge
-		if self.challenge == None:
-			return message
-		crc = do_crc('%c%c'%(self.challenge >> 8, self.challenge & 0xff))
-		crc = do_crc(self.secret, crc)
-		crc = do_crc(message, crc)
-		print 'output = "%s|%04x"' % (message, crc)
-		return message+'|'+('%04x'%crc)
-
-	def ping(self):
-		self.wfh.write('PING\n')
-		(code, string) = self.get_response()
-		return (code == '000', code, string)
-
-	def vend(self, item):
-		if not re.search('^[0-9][0-9]$', item):
-			return (False, 'Invalid item requested (%s)'%item)
-		self.wfh.write(self.authed_message(('V%s'%item))+'\n')
-		(code, string) = self.get_response()
-		return (code == '100', code, string)
-
-	def beep(self, duration = None, synchronous = True):
-		msg = 'B'
-		if synchronous: msg += 'S'
-		if duration != None:
-			if duration > 255: duration = 255
-			if duration < 1: duration = 1
-			msg += '%02x'%duration
-		self.wfh.write(msg+'\n')
-		(code, string) = self.get_response()
-		return (code == '500', code, string)
-
-	def silence(self, duration = None, synchronous = True):
-		msg = 'C'
-		if synchronous: msg += 'S'
-		if duration != None:
-			if duration > 255: duration = 255
-			if duration < 1: duration = 1
-			msg += '%02x'%duration
-		self.wfh.write(msg+'\n')
-		(code, string) = self.get_response()
-		return (code == '501', code, string)
-
-	def display(self, string):
-		if len(string) > 10:
-			string = string[0:10]
-		string = re.sub('(.)\.', lambda match: '.'+match.group(1), string)
-		self.wfh.write('D'+string+'\n')
-		(code, string) = self.get_response()
-		return (code == '300', code, string)
-
-	def next_event(self, timeout = None):
-		# we don't want to buffer in the serial port, so we get all the events
-		# we can ASAP.
-
-		# Never have no timeout...
-		if timeout == None: timeout = 60*60*24*365
-
-		# Make sure we go through the loop at least once.
-		if timeout < 0: timeout = 0
-
-		while timeout >= 0:
-			this_timeout = min(timeout, 0.2)
-			timeout -= this_timeout
-
-			(r, _, _) = select([self.rfh], [], [], this_timeout)
-			if r:
-				self.get_response(async = True)
-				timeout = 0
-
-			if self.mifare:
-				now = time()
-				if now > self.mifare_timeout:
-					self.mifare_timeout = now + 0.5
-					mifare_uid = self.mifare.get_card_id()
-					if mifare_uid != None:
-						logging.info('Got MIFARE card id %s'%(repr(mifare_uid)))
-						self.events.append((MIFARE, mifare_uid))
-						timeout = 0
-			if timeout == 0:
-				break
-
-		if len(self.events) == 0: return (TICK, time())
-		ret = self.events[0]
-		del self.events[0]
-		return ret
diff --git a/sql-edition/servers/servers.conf b/sql-edition/servers/servers.conf
deleted file mode 100644
index 5919d22..0000000
--- a/sql-edition/servers/servers.conf
+++ /dev/null
@@ -1,15 +0,0 @@
-
-[Database]
-Server = localhost
-Name = dispense
-
-[VendingMachine]
-DBUser = cameron
-DBPassword = blah
-ServiceName = blah
-Password = foo
-
-[DecServer]
-Name = outside
-ConnectPassword = foo
-PrivPassword = bar
diff --git a/sql-edition/servers/snacks.conf b/sql-edition/servers/snacks.conf
deleted file mode 100644
index 4f036ed..0000000
--- a/sql-edition/servers/snacks.conf
+++ /dev/null
@@ -1,14 +0,0 @@
-# format:
-# all are whitespace seperated, name can have whitespace.
-# price - in cents
-# slots - comma seperated list of slots with this item.
-#       - don't put any spaces in this
-#       - the magically named '--' slot is the default for 
-#         unadded slots
-# name  - the name, spaces are OK.
-
-# price		slots		dispensename	name
-# eg
-# 550		88,00		5out			$5 withdrawal
- 550		88,00		5out			$5 withdrawal
- 110		--			snack			tasty snack