forked from bton/matekasse
43 lines
No EOL
1.3 KiB
Python
43 lines
No EOL
1.3 KiB
Python
import nfc
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import subprocess
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import datetime
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import requests
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import sys
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time_tag = {}
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def get_reader():
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devices = subprocess.check_output("lsusb")
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for i in devices.split(b'\n'):
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if str(i).__contains__("Advanced Card Systems, Ltd ACR122U"):
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bus = str(i).split(":")[0].split(" Device ")[0].split("Bus ")[1]
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device = str(i).split(":")[0].split("Device ")[1]
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return("usb:{}:{}".format(bus, device))
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sys.exit("\n\n Error: NFC reader konnte nicht erkannt werden! \n\n")
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def onTagSense(tag):
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id = int.from_bytes(tag.identifier, "big")
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if id in time_tag and time_tag[id] > datetime.datetime.now().timestamp() - float(2):
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return False
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else:
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time_tag[id] = datetime.datetime.now().timestamp()
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print(id)
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response = requests.get(f"http://localhost:5000/api/tag_id?id={id}")
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print(response.text)
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if response.text == "True":
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return True
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elif response.text == "False":
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return False
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else:
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print("Error: falstsche Response erhalten")
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return False
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def main():
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device = get_reader()
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clf = nfc.ContactlessFrontend(device)
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clf.open(device)
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while True:
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print("sensing")
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clf.connect(rdwr={'on-connect': onTagSense, 'beep-on-connect': True})
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main() |