def checkFP():
## Tries to initialize the sensor
try:
f = PyFingerprint('/dev/ttyS0', 57600, 0xFFFFFFFF, 0x00000000)
if (f.verifyPassword() == False):
raise ValueError('The given fingerprint sensor password is wrong!')
except Exception as e:
print('The fingerprint sensor could not be initialized!')
print('Exception message: ' + str(e))
exit(1)
## Gets some sensor information
print('Currently used templates: ' + str(f.getTemplateCount()) + '/' +
str(f.getStorageCapacity()))
## Tries to search the finger and calculate hash
try:
print('Waiting for finger...')
## Wait that finger is read
while (f.readImage() == False):
pass
## Converts read image to characteristics and stores it in charbuffer 1
f.convertImage(0x01)
## Searchs template
result = f.searchTemplate()
positionNumber = result[0]
accuracyScore = result[1]
if (positionNumber == -1):
print('No match found!')
return -30
else:
print('Found template at position #' + str(positionNumber))
print('The accuracy score is: ' + str(accuracyScore))
## OPTIONAL stuff
##
## Loads the found template to charbuffer 1
f.loadTemplate(positionNumber, 0x01)
## Downloads the characteristics of template loaded in charbuffer 1
characterics = str(f.downloadCharacteristics(0x01)).encode('utf-8')
## Hashes characteristics of template
print('SHA-2 hash of template: ' +
hashlib.sha256(characterics).hexdigest())
return positionNumber
except Exception as e:
print('Operation failed!')
print('Exception message: ' + str(e))
exit(1)
def delete():
try:
f = PyFingerprint('/dev/ttyUSB0', 57600, 0xFFFFFFFF, 0x00000000)
if (f.verifyPassword() == False):
raise ValueError(
'La Contraseña del sensor de huellas dactilares dada es incorrecta!'
)
except Exception as e:
print('No se puedo inicializar el sensor de huellas dactilares!')
print('Mensaje de exepcion: ' + str(e))
exit(1)
## Gets some sensor information
print('\tEdu Attendance v1.0')
print('')
print('Plantillas utilizada actualmente: ' + str(f.getTemplateCount()) +
'/' + str(f.getStorageCapacity()))
print('')
try:
if f.clearDatabase() == True:
print('Plantillas actualmente: ' + str(f.getTemplateCount()) +
'/' + str(f.getStorageCapacity()))
except Exception as e:
print('Operacion fallida')
print('Mensaje de exepcion: ' + str(e))
exit(1)
def register():
try:
f = PyFingerprint('/dev/ttyUSB0', 57600, 0xFFFFFFFF, 0x00000000)
if (f.verifyPassword() == False):
raise ValueError(
'La Contraseña del sensor de huellas dactilares dada es incorrecta!'
)
except Exception as e:
print('No se puedo inicializar el sensor de huellas dactilares!')
print('Mensaje de exepcion: ' + str(e))
exit(1)
## Gets some sensor information
print('\tEdu Attendance v1.0')
print('')
print('Plantillas utilizada actualmente: ' + str(f.getTemplateCount()) +
'/' + str(f.getStorageCapacity()))
print('')
print("Registrar un Nuevo Usuario")
new_name = input("Nombre: ")
result = finger()
sql = """INSERT INTO empleado ( nombre,id_huella,dato) VALUES ('%s','%s','%s')""" % (
new_name, result[0], result[1])
mysqlcursor.execute(sql)
db.commit()
db.rollback()
print("Completado")
lcd.lcd_display_string('Completado', 1)
db.close()
class FingerPrintScan:
def __init__(self):
self.f = PyFingerprint('/dev/ttyUSB0', 57600, 0xFFFFFFFF, 0x00000000)
if (self.f.verifyPassword() == False):
raise ValueError('The given fingerprint sensor password is wrong!')
print('Currently used templates: ' + str(self.f.getTemplateCount()) +
'/' + str(self.f.getStorageCapacity()))
self.current_buffer = 0x01
def scan_fingerprint(self):
while (self.f.readImage() == False):
pass
def is_fingerprint_exist(self):
result = self.f.searchTemplate()
positionNumber = result[0]
print(positionNumber)
return positionNumber >= 0
def get_template_id(self):
result = self.f.searchTemplate()
positionNumber = result[0]
print(positionNumber)
return positionNumber
def save_fingerprint(self):
self.f.createTemplate()
return self.f.storeTemplate()
def clear_all_fingerprint(self):
for i in range(self.f.getTemplateCount()):
if self.f.deleteTemplate(i):
print('Template deleted - ' + str(i))
def clear_fingerprint(self, start, end):
for i in range(start, end):
if self.f.deleteTemplate(i):
print('Template deleted - ' + str(i))
def save_to_char_buffer(self):
self.f.convertImage(self.current_buffer)
self.current_buffer = self.current_buffer + 1
def save_as_image(self, file_name):
imageDestination = os.getcwd() + '/' + file_name + '.png'
self.f.downloadImage(imageDestination)
class FingerprintController(object):
def __init__(self):
self.sensor = None
self.lcd = None
self.cur_state = None
def connect(self, dev):
logging.info("Attempting to open serial device %s", dev)
self.sensor = PyFingerprint(dev, 57600, 0xFFFFFFFF, 0x00000000)
if not self.sensor.verifyPassword():
raise ValueError('The given fingerprint sensor password is wrong!')
logging.info("Serial device opened")
logging.info(
"Currently used templates: %s/%s" %
(self.sensor.getTemplateCount(), self.sensor.getStorageCapacity()))
self.lcd = LCD()
self.send_update_packet({"status": "idle"})
def send_update_packet(self, data):
logging.info("=> %s" % data)
resp = requests.post(url=API_UPDATE_SELF_STATE,
data={
"token": ID_TOKEN,
"state": json.dumps(data),
})
logging.info(" <= %s", resp.json())
def request_mode(self):
try:
logging.info("Requesting state...")
data = requests.post(url=API_SELF_STATE,
data={
"token": ID_TOKEN,
},
timeout=10)
logging.info("Received response: %s", data)
data = data.json()
return data['state']
except KeyboardInterrupt:
sys.exit(0)
except:
logging.exception("Failed requesting state, idling...")
return 'idle'
def loop_forever(self):
funcs = {
'enroll': self.state_enroll,
'auth': self.state_auth,
'idle': self.state_idle,
}
while True:
mode = self.request_mode()
action = funcs.get(mode, None)
if not action:
logging.warning("Ignoring invalid mode from server: %s", mode)
self.state_idle()
continue
logging.info("Performing action '%s'", mode)
try:
action()
if mode != 'idle':
time.sleep(5)
except Exception as ex:
self.send_update_packet({
"status": "general_error",
"message": ex.message
})
def state_idle(self):
self.lcd.setText("Waiting...")
self.lcd.setRGB(255, 150, 0)
time.sleep(1)
def state_enroll(self):
self.send_update_packet({"status": "enroll_wait"})
self.lcd.setRGB(0, 255, 0)
self.lcd.setText("Place finger on the sensor.")
while not self.sensor.readImage():
pass
self.sensor.convertImage(0x01)
result = self.sensor.searchTemplate()
position_num = result[0]
if position_num >= 0:
self.send_update_packet({
"status": "enroll_fail",
"reason": "Fingerprint already enrolled."
})
return
self.lcd.setText("Lift finger off the sensor.")
self.send_update_packet({"status": "enroll_lift"})
time.sleep(2)
self.lcd.setText("Place your\nfinger again.")
self.send_update_packet({"status": "enroll_wait2"})
while not self.sensor.readImage():
pass
self.sensor.convertImage(0x02)
if not self.sensor.compareCharacteristics():
self.lcd.setRGB(255, 0, 0)
self.lcd.setText("Fingerprints do not match.")
self.send_update_packet({
"status": "enroll_fail",
"reason": "Fingerprints do not match."
})
return
self.sensor.createTemplate()
characteristics = self.sensor.downloadCharacteristics(0x01)
hash = hashlib.sha256(str(characteristics).encode('utf-8')).hexdigest()
position_num = self.sensor.storeTemplate()
self.lcd.setText("Fingerprint added!")
self.send_update_packet({"status": "enroll_success", "hash": hash})
def state_auth(self):
self.send_update_packet({"status": "auth_wait"})
self.lcd.setRGB(0, 255, 0)
self.lcd.setText("Place finger on the sensor.")
while not self.sensor.readImage():
pass
self.sensor.convertImage(0x01)
result = self.sensor.searchTemplate()
position_num = result[0]
accuracy = result[1]
if position_num == -1:
self.lcd.setRGB(255, 0, 0)
self.lcd.setText("Unknown\nfingerprint!")
self.send_update_packet({
"status": "auth_fail",
"reason": "Unknown fingerprint!"
})
return
self.lcd.setText("Successfully\nauthenticated!")
logging.info("Found template at position #%d, score %d", position_num,
accuracy)
self.send_update_packet({"status": "auth_success"})
## Tries to initialize the sensor
try:
f = PyFingerprint('/dev/ttyUSB0', 57600, 0xFFFFFFFF, 0x00000000)
if (f.verifyPassword() == False):
raise ValueError('The given fingerprint sensor password is wrong!')
except Exception as e:
print('The fingerprint sensor could not be initialized!')
print('Exception message: ' + str(e))
exit(1)
## Gets some sensor information
print('Currently used templates: ' + str(f.getTemplateCount()) + '/' +
str(f.getStorageCapacity()))
## Tries to delete the template of the finger
try:
positionNumber = input(
'Please enter the template position you want to delete: ')
positionNumber = int(positionNumber)
if (f.deleteTemplate(positionNumber) == True):
deletefromdatabase()
print('Template deleted!')
except Exception as e:
print('Operation failed!')
print('Exception message: ' + str(e))
exit(1)
