def allowed_by_server(uid):
try:
global config, ser1, ser2, ser3
url = config[u'url_unlock'] + uid
r = requests.get(url)
print_log('Unlock request:' + str(url))
print_log('response status code: ' + str(r.status_code))
print_log(r.text)
if r.status_code != 200:
raise Exception('Server error')
if (r.text == 'yes'):
return (True, "not_defined")
if (r.text == "no") :
return (False, "not_defined")
resp = json.loads(r.text)
print_log("name: " + resp["name"])
if resp["status"] == "yes":
return (True, resp["cause"])
else:
return (False, resp["cause"])
except:
lcd_lib.print_lcd('Network error')
print_log("Error asking server to unlock: " + str(sys.exc_info()))
print_log("Continuing working")
return (False, "error")
def allowed_by_admin(uid):
try:
with open('admin_uid.txt', 'rb') as f:
for line in f:
if uid == line[:-1]:
print_log("Welcome, Admin Adminovich")
return True
except:
lcd_lib.print_lcd('Local error')
print_log("Error processing admin list" + str( sys.exc_info()))
return False
def configure(filename):
try:
with open(filename) as f:
data = json.load(f)
if (data.get(u'url_unlock') == None) or (data.get(u'url_upd') == None) :
raise Exception('Invalid content of config file')
except:
lcd_lib.print_lcd('Configuration error')
print_log("Error processing config file: " + str(sys.exc_info()))
print_log("Continuing working in an old way")
else:
global config
config = data
lcd_lib.print_lcd('Configured')
print_log("New configuration: " + str(config))
def allowed_by_list(uid):
print_log("Asking list")
try:
with open('access_list.txt') as f:
data = json.load(f, object_hook=date_hook)
for o in data:
if (o['uid'] == uid)\
and (o['date_start'].date() == datetime.date.today())\
and (o['time_start'].time() <= datetime.datetime.now().time())\
and (o['time_end'].time() >= datetime.datetime.now().time()):
print_log("access granted")
print_log("name: " + o["name"])
return True
except:
lcd_lib.print_lcd('Database error')
print_log("Error processing access list: " + str(sys.exc_info()))
update_list()
print_log("no access")
return False
def update_list():
try:
global config
url = config[u'url_upd']
r = requests.get(url)
print_log('Update request:' + url)
print_log('response status code: ' + str(r.status_code))
if r.status_code != 200:
raise Exception('Server error')
json_str = string.replace(r.text, "'", '"')
with open('access_list.txt', 'w') as f:
f.write(json_str)
print_log("Access list successfully updated")
data = json.loads(json_str, object_hook=date_hook)
return data
except:
lcd_lib.print_lcd('Network error')
print_log("Error asking server to update: " + str(sys.exc_info()))
print_log("Continuing working")
return None