class NFCScanner(object):
"""Thread reading data from NFC reader"""
def __init__(self, config, msgQueue, ircThread):
"""Create worker reading UIDs from PN53x reader.
"""
self.authenticator = UidAuthenticator(config.authDbFilename)
self.hmacAuthenticator = None
self.desfireAuthenticator = None
self.unknownUidTimeoutSecs = config.unknownUidTimeoutSecs
self.lockOpenedSecs = config.lockOpenedSecs
self.msgQueue = msgQueue
self.ircThread = ircThread
unlockerClassName = config.unlocker
unlockerClass = getattr(unlocker, unlockerClassName)
self.unlocker = unlockerClass(config)
def run(self):
"""
Waits for a card to get into reader field. Reads its UID and
compares to database of authorized users. Unlocks lock if
authorized.
"""
self.nfc = NFCDevice()
self.hmacAuthenticator = YubikeyHMACAuthenthicator(
config.authDbFilename, self.nfc
)
self.desfireAuthenticator = DesfireEd25519Authenthicator(
config.authDbFilename, self.nfc,
config.desfirePubkey.decode("hex")
)
#self.nfc.pollNr = 0xFF #poll indefinitely
while True:
try:
uid_hex = hexlify(self.nfc.scanUID())
logging.debug("Got UID %s", uid_hex)
if len(uid_hex) > 0:
self.actOnUid(uid_hex)
else:
#prevent busy loop if reader goes awry
e = threading.Event()
e.wait(timeout=0.3)
except NFCError, e:
#this exception happens also when scanUID finds no cards
logging.debug("Failed to find RFID cards in reader's field: %s", e)
e = threading.Event()
e.wait(timeout=0.2)
except KeyboardInterrupt:
logging.info("Exiting on keyboard interrupt")
self.nfc.close()
self.nfc.unload()
self.unlocker.lock()
sys.exit(2)
except Exception:
logging.exception("Exception in main unlock thread")
class NFCScanner(object):
"""Thread reading data from NFC reader"""
def __init__(self, config, msgQueue, ircThread):
"""Create worker reading UIDs from PN53x reader.
"""
self.authenticator = UidAuthenticator(config.authDbFilename)
self.hmacAuthenticator = None
self.desfireAuthenticator = None
self.unknownUidTimeoutSecs = config.unknownUidTimeoutSecs
self.lockOpenedSecs = config.lockOpenedSecs
self.msgQueue = msgQueue
self.ircThread = ircThread
unlockerClassName = config.unlocker
unlockerClass = getattr(unlocker, unlockerClassName)
self.unlocker = unlockerClass(config)
def run(self):
"""
Waits for a card to get into reader field. Reads its UID and
compares to database of authorized users. Unlocks lock if
authorized.
"""
self.nfc = NFCDevice()
self.hmacAuthenticator = YubikeyHMACAuthenthicator(
config.authDbFilename, self.nfc)
self.desfireAuthenticator = DesfireEd25519Authenthicator(
config.authDbFilename, self.nfc,
config.desfirePubkey.decode("hex"))
#self.nfc.pollNr = 0xFF #poll indefinitely
while True:
try:
uid_hex = hexlify(self.nfc.scanUID())
logging.debug("Got UID %s", uid_hex)
if len(uid_hex) > 0:
self.actOnUid(uid_hex)
else:
#prevent busy loop if reader goes awry
e = threading.Event()
e.wait(timeout=0.3)
except NFCError, e:
#this exception happens also when scanUID finds no cards
logging.debug(
"Failed to find RFID cards in reader's field: %s", e)
e = threading.Event()
e.wait(timeout=0.2)
except KeyboardInterrupt:
logging.info("Exiting on keyboard interrupt")
self.nfc.close()
self.nfc.unload()
self.unlocker.lock()
sys.exit(2)
except Exception:
logging.exception("Exception in main unlock thread")
print "Now trying to send ISO14443-4 APDUs"
try:
#nfc.selectPassiveTarget()
for apdu in apdus:
print "Command APDU:", formatAPDU(apdu)
rapdu = nfc.sendAPDU(apdu)
print "Response APDU valid: %s, SW %04x, data %s" % (
rapdu.valid(), rapdu.sw(), hexlify(rapdu.data()))
except NFCError, e:
print "Failed to transmit APDU:", e.what()
print "Device is opened:", nfc.opened()
print "Closing device"
nfc.close()
print "Device is opened:", nfc.opened()
nfc.unload()
except NFCError, e:
print "Reading UID failed:", e.what()
elif apdu_test == "desfire-ndef4":
try:
nfc = NFCDevice()
uid = nfc.scanUID()
print "UID", hexlify(uid)
#nfc.close()
#nfc.open()
ndef = nfc.readDesfireNDEF()
print ndef
print "Device is opened:", nfc.opened()
print "Closing device"
nfc.close()
print "Selected test: %s" % apdu_test
# select apdus according to test name
hex_apdus = tests[apdu_test]
apdus = [hex_apdu.replace(" ","").decode("hex") for hex_apdu in hex_apdus]
try:
nfc = NFCDevice()
uid = nfc.scanUID()
print "UID", hexlify(uid)
#nfc.close()
#nfc.open()
print "Now trying to send ISO14443-4 APDUs"
try:
#nfc.selectPassiveTarget()
for apdu in apdus:
print "Command APDU:", formatAPDU(apdu)
rapdu = nfc.sendAPDU(apdu)
print "Response APDU valid: %s, SW %04x, data %s" % (rapdu.valid(), rapdu.sw(), hexlify(rapdu.data()))
except NFCError, e:
print "Failed to transmit APDU:", e.what()
print "Device is opened:", nfc.opened()
print "Closing device"
nfc.close()
print "Device is opened:", nfc.opened()
nfc.unload()
except NFCError, e:
print "Reading UID failed:", e.what()