mirror of https://github.com/Yubico/python-fido2
81 lines
2.3 KiB
Python
81 lines
2.3 KiB
Python
from fido2.pcsc import CtapPcscDevice
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import time
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class Acr122uPcscDevice(object):
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def __init__(self, pcsc_device):
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self.pcsc = pcsc_device
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def reader_version(self):
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"""
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Get reader's version from reader
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:return: string. Reader's version
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"""
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try:
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result, sw1, sw2 = self.pcsc.apdu_exchange(b"\xff\x00\x48\x00\x00")
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if len(result) > 0:
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str_result = result + bytes([sw1]) + bytes([sw2])
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str_result = str_result.decode("utf-8")
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return str_result
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except Exception as e:
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print("Get version error:", e)
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return "n/a"
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def led_control(
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self,
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red=False,
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green=False,
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blink_count=0,
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red_end_blink=False,
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green_end_blink=False,
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):
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"""
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Reader's led control
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:param red: boolean. red led on
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:param green: boolean. green let on
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:param blink_count: int. if needs to blink value > 0. blinks count
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:param red_end_blink: boolean.
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state of red led at the end of blinking
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:param green_end_blink: boolean.
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state of green led at the end of blinking
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:return:
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"""
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try:
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if blink_count > 0:
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cbyte = (
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0b00001100
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+ (0b01 if red_end_blink else 0b00)
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+ (0b10 if green_end_blink else 0b00)
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)
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cbyte |= (0b01000000 if red else 0b00000000) + (
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0b10000000 if green else 0b00000000
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)
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else:
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cbyte = 0b00001100 + (0b01 if red else 0b00) + (0b10 if green else 0b00)
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apdu = (
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b"\xff\x00\x40"
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+ bytes([cbyte & 0xFF])
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+ b"\4"
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+ b"\5\3"
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+ bytes([blink_count])
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+ b"\0"
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)
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self.pcsc.apdu_exchange(apdu)
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except Exception as e:
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print("LED control error:", e)
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dev = next(CtapPcscDevice.list_devices())
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print("CONNECT: %s" % dev)
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pcsc_device = Acr122uPcscDevice(dev)
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pcsc_device.led_control(False, True, 0)
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print("version: %s" % pcsc_device.reader_version())
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pcsc_device.led_control(True, False, 0)
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time.sleep(1)
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pcsc_device.led_control(False, True, 3)
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