Add original code

old.py

@@ -0,0 +1,193 @@
+import os
+import sys
+import RPi.GPIO as GPIO
+import serial
+import sqlite3
+import atexit
+import time
+import logging
+import pygame
+import threading
+import urllib
+
+def dict_factory(cursor, row):
+	d = {}
+	for idx, col in enumerate(cursor.description):
+		d[col[0]] = row[idx]
+	return d
+
+class DaemonApp(object):
+	def __init__(self):
+		self.stdin_path = '/dev/null'
+		self.stdout_path = '/dev/null'
+		self.stderr_path = '/dev/null'
+		self.pidfile_path =  '/var/run/door.pid'
+		self.pidfile_timeout = 5
+
+		self.running = True
+		self.log = logging.getLogger("daemon")
+
+	def __halt(self):
+		self.running = False
+
+	def run(self):
+		atexit.register(self.__halt)
+
+		self.setup()
+		while self.running:
+			try:
+				self.loop()
+			except KeyboardInterrupt:
+				break
+			except Exception as ex:
+				self.log.exception(ex)
+				break
+
+		self.stop()
+
+	def setup(self):
+		pass
+
+	def stop(self):
+		pass
+
+	def loop(self):
+		pass
+
+class App(DaemonApp):
+	def __init__(self, serial, db_file):
+		super(App, self).__init__();
+
+		self.serial = serial
+		self.db_file = db_file
+		
+		self.recent = {}
+
+	def setup(self):
+		self.log.info("starting")
+
+		GPIO.setwarnings(False)
+		GPIO.setmode(GPIO.BCM)
+		GPIO.setup(17, GPIO.OUT)
+		# The 110 Door fails secure,
+		# drive low to close the NO relay and unlock the door
+		# leave HIGH otherwise.
+		# The 108 Door fails secure,
+		# but needs to be driven HIGH to close the normally open relay and unlock the door
+		GPIO.output(17, GPIO.LOW)
+
+	def loop(self):
+		card = self.serial.readline()
+		if not card:
+			return
+
+		card = card.strip()
+		if len(card) != 10:
+			return
+
+		now = time.time()
+		if card in self.recent:
+			if now - self.recent[card] < 5.0:
+				self.recent[card] = now
+				return
+
+		self.recent[card] = now
+
+		self.handle_card_read(card)
+
+	def stop(self):
+		self.log.info("stopping")
+
+	def handle_card_read(self, card):
+		db = sqlite3.connect(self.db_file)
+		db.row_factory = dict_factory
+                baseurl = "http://my.protospace.ca/locks/door/108A/"
+
+		self.unify_serial_numbers(db, card)
+
+		# TODO flag duplicates
+		cards = self.query_cards(db, card)
+		if cards:
+			card = cards.pop(0)
+
+			# TODO merge duplicate values
+			for temp in cards:
+				pass
+
+			self.update_timestamp(db, card['serial'])
+			if not card['active']:
+				self.log.warn("%s[%s] denied access" % (card["owner"], card['serial']))
+                                urlaction = "DENIED"
+                                rfid = "%s" % card['serial']
+
+			else:
+				self.log.info("%s[%s] entered the space" % (card["owner"], card['serial']))
+                                urlaction = "ALLOWED"
+                                rfid = "%s" % card['serial']
+
+				threading.Thread(target=self.unlock_door, kwargs={"duration": 5.0}).start()
+
+		else:
+			self.log.info("Card read: %s" % (card,))
+                        rfid = "%s" % (card,)
+                        urlaction = "NOT IN DB"
+
+		url = baseurl + rfid + "/" + urlaction
+        
+		try:
+			response = urllib.urlopen(url).read()
+			self.log.info("Web log response was %s" % (response))
+		except:
+			self.log.warn("A generic error occurred on the web call.")
+			
+		db.close()
+
+	def unify_serial_numbers(self, db, card):
+		q = "UPDATE cards SET serial='%s' WHERE serial='%s'" % (card, card[::-1])
+		db.execute(q)
+
+	def update_scan_log(self, db, card):
+		q = "INSERT INTO scan_logs"
+
+	def update_timestamp(self, db, card):
+		q = "UPDATE cards SET first_seen = datetime('now') WHERE serial = '%s' AND first_seen IS NULL" % (card)
+		db.execute(q)
+
+		q = "UPDATE cards SET last_seen = datetime('now') WHERE serial = '%s'" % (card)
+		db.execute(q)
+
+		db.commit()
+
+	def unlock_door(self, duration):
+		#108 Door needs HIGH to unlock
+		#110 Door needs LOW to unlock
+		GPIO.output(17, GPIO.HIGH)
+		time.sleep(duration)
+		GPIO.output(17, GPIO.LOW)
+
+	def play_sound(self, path):
+		if not (path and os.path.exists(path)):
+			return
+
+		if not pygame.mixer.music.get_busy():
+			try:
+				pygame.mixer.music.load(path)
+				pygame.mixer.music.play()
+			except:
+				self.log.warn("Failed to play sound '%s'" % (path))
+
+	def query_cards(self, db, card):
+		cur = db.cursor()
+		query = "SELECT * FROM cards WHERE serial='%s' ORDER BY id ASC" % card
+		cur.execute(query)
+
+		cards = []
+
+		row = cur.fetchone()
+		while row:
+			cards.append(row)
+			row = cur.fetchone()
+
+		self.log.debug(cards)
+
+		return cards