def save(self):
if not self.fingers_to_save:
dlgAviso(self.ventana,
'Obten la huella antes de guardar un nuevo cliente.')
return
if not self.validar_formulario():
return
guardar_en_cache = False
Session = orm.sessionmaker(self.padre.cnx)
registrar_visita = True
if not self.session or not self.cliente:
self.session = Session()
self.cliente = Clientes()
registrar_visita = False
# self.on_btnObtener_clicked(widget, {'save': True})
try:
if not registrar_visita:
self.guardar_cliente()
cache = sys.cache
objeto = dict(id=self.cliente.id,
fingers=self.cliente.huella_digital)
self.finger_cache.append(objeto)
guardar_en_cache = True
self.registrar_visita()
if permisos.verifica_permiso(self.usuario,
permisos.ASING_BENEFICIOS):
#si tiene permiso para asignar beneficios
beneficio_id = self.pecBeneficio.get_cod()
if beneficio_id:
if self.cliente.beneficios_id != int(beneficio_id):
#Si es distinto al que ya poseia
self.asignar_beneficio(int(beneficio_id))
self.session.commit()
if guardar_en_cache:
if cache.get('fingers'):
cache.replace('fingers', self.finger_cache)
else:
cache.set('fingers', self.finger_cache)
self.fingers_list.append(dict(id = objeto['id'], fingers \
= pyfprint.Fprint(serial_data = objeto['fingers']))
)
dlgAviso(self.ventana, "El usuario se ha registrado")
self.limpiar_formulario()
except:
self.session.rollback()
dlgError(self.ventana, "Ocurrio un error al agregar al usuario")
self.session.close()
def verify_identity(huella):
pyfprint.init()
fp_reader = pyfprint.discover_devices()[0]
finger = pyfprint.Fprint(huella)
print('Deslice su dedo por el lector para verificar su identidad')
fp_reader.open()
is_verified = fp_reader.verify_finger(finger)[0]
fp_reader.close()
pyfprint.exit()
return is_verified
def __enroll(self):
finger_print = pyfprint.Fprint(
data_ptr=pyf.fp_print_data_from_data(self.__finger_print))
result = self.__dev.verify_finger(finger_print)
if result[0]:
self.close(None)
self.__parent.record_attendance()
elif not result[0]:
gobject.idle_add(
self.__update_label,
_("The fingerprint does not match the user entered, try again")
)
else:
gobject.idle_add(self.__update_label,
_("Failed to register fingerprint, try again"))
def get_data(self):
self.session = None
self.cliente = None
cache = sys.cache
self.finger_cache = cache.get('fingers')
if self.finger_cache is None:
self.finger_cache = []
Session = orm.sessionmaker(self.padre.cnx)
self.data = Session()
clientes = self.data.query(Clientes).all()
for c in clientes:
self.finger_cache.append(
dict(id=c.id, fingers=c.huella_digital))
cache.set('fingers', self.finger_cache)
self.fingers_list = []
for finger in self.finger_cache:
self.fingers_list.append(dict(id = finger['id'], fingers \
= pyfprint.Fprint(serial_data = finger['fingers'])))
return self.fingers_list
# -*- coding: utf-8 -*-
import pyfprint
import os.path
DIR = "/tmp/fps"
pyfprint.fp_init()
devs = pyfprint.discover_devices()
dev = devs[0]
dev.open()
names = []
fps = []
for name in os.listdir(DIR):
fps.append(pyfprint.Fprint(open(DIR + "/" + name, 'br').read()))
names.append(name)
print("ready to match fingers!")
while True:
fp, img = dev.enroll_finger()
i = pyfprint.identify(fp, fps)
if i is None:
print("no match found")
else:
print("identified " + names[i] + "!")
def authenticate():
pyfprint.fp_init() # Initialize the fingerprint library
devs = pyfprint.discover_devices()
dev = devs[0] # Select the first device detected
dev.open()
# Connect to the database database
fdb = sqlite3.connect(DB_FILE)
users = []
gallery = []
print(
"To gain access, we have to verify you are authorized using the biometric system\n"
)
with fdb:
cur = fdb.cursor()
# Check that the table is already created. if not, it means no enrolment has been made so far
# The function will return immediately
cur.execute(
"SELECT name FROM sqlite_master WHERE type='table' AND name='biometric'"
)
if not cur.fetchone():
print("No data in database yet. Please enroll first")
return
# Query the database for all entries, storing them in a vector list (users and gallery)
cur.execute("SELECT username, finger_p FROM biometric")
for row in cur.fetchall():
fp_str = row[1].decode(
'utf8', 'surrogateescape') # Decode binary data from db
data = pyfprint.pyf.fp_print_data_from_data(fp_str)
gallery.append(pyfprint.Fprint(data_ptr=data))
users.append(row[0])
# After querying the database, proceed to ask for users finger swipe
print(
"To proceed, please swipe your RIGHT INDEX finger on the sensor...\n"
)
# Verification is done here
# Checks to see if the users fingerprint match any of those retrieved from database
n, fprint, img = dev.identify_finger(gallery)
print("Authenticating...")
if fprint:
print("Authenticated! {0}".format(users[n])) # User is authenticated
result = True
else:
print("Authentication Failed") # User not authenticated
result = False
# verified, img = dev.verify_finger(fprint)
# if verified:
# print("Welcome, {0}".format(username))
# else:
# print("Sorry! You are not allowed here!")
# if img is not None:
dev.close()
pyfprint.fp_exit()
return result
def _loadPrint(self):
"""Load serialized print data.
Returns a tuple containing the unserialized data and image."""
(data, img) = self._comarCall('loadFPData', 'modifyfingerprintdata', (self.__uid))
return (pyfprint.Fprint(b64dec(data)), self.toPixmap(b64dec(img)))
#!/usr/bin/env python
# -*- coding: utf-8 -*-
from __future__ import print_function
import pyfprint
pyfprint.fp_init()
devs = pyfprint.discover_devices()
dev = devs[0]
dev.open()
print("enroll, finger please")
fp, _ = dev.enroll_finger()
print("getting data")
b = fp.data()
print("got data buffer:")
print(b)
print("fp copied")
fp2 = pyfprint.Fprint(b)
print("verify original, finger please")
print(dev.verify_finger(fp))
print("verifying copy, finger please")
print(dev.verify_finger(fp2))
dev.close()
pyfprint.fp_exit()