def main():
sg.theme("Black")
# fmt: off
layout = [[sg.Image(
filename="",
key="camera_image",
)],
[
sg.Multiline(font="Courier 12",
size=(80, 10),
key="output_window",
autoscroll=True,
auto_refresh=True,
write_only=True,
disabled=True,
text_color="black")
]]
# fmt: on
window = sg.Window("Small demo in playground",
layout,
location=(800, 400),
element_justification="c")
SetInterval().initialize(window, 0.1)
SetInterval().start()
run = True
# ---===--- Event LOOP Read and display frames, operate the GUI --- #
while True:
event, values = window.read(timeout=20)
if event == sg.WIN_CLOSED:
break
elif event == "-SHOW MRZ-":
window["camera_image"].update(data=values[event][0])
elif event == "-HIDE MRZ-":
window["camera_image"].update(filename="", size=(320, 240))
elif event == "-RAISED EXCEPTION-":
print("[!] Problem occured! Restarting...")
run = True
elif event == "-RESTART-":
print("[!] Run completed! Restarting...")
run = True
elif event == "-PRINT-":
window["output_window"].print(values[event])
if run:
threading.Thread(target=program_logic,
args=(window, ),
daemon=True).start()
run = False
SetInterval().cancel()
window.close()
# https://opensource.org/licenses/MIT
"""X509 certificate related functions"""
from datetime import datetime
from typing import Dict, Union
from OpenSSL.crypto import (
X509,
X509Store,
X509StoreContext,
X509StoreContextError,
Error,
)
from emrtd_face_access.print_to_sg import SetInterval
print = SetInterval().print
def is_self_signed(cert: X509) -> bool:
"""
Checks if a X509 certificate is self signed.
"""
store = X509Store()
store.add_cert(cert)
validfrom_time = cert.get_notBefore()
validfrom_datetime = datetime.strptime(validfrom_time.decode("utf-8"),
"%Y%m%d%H%M%SZ")
store.set_time(validfrom_datetime)
store_ctx = X509StoreContext(store, cert)
try:
store_ctx.verify_certificate()
def main_event_loop():
"""
Main GUI event loop
"""
args = parse_arguments()
layout = setup_gui(debug_on_gui=not args.no_debug)
window = sg.Window(
"eMRTD Face Access",
layout,
return_keyboard_events=True,
use_default_focus=False,
finalize=True,
)
SetInterval().initialize(window, 0.1)
SetInterval().start()
db = None
if args.db:
db = TinyDB(args.db)
first_run = True
run = True
everything_ok: bool
q: Queue = Queue()
q2: Queue = Queue()
lock = threading.Lock()
lock2 = threading.Lock()
while True:
if run:
everything_ok = True
threading.Thread(
target=main, args=(window, args, db, q, q2, lock, lock2, first_run), daemon=True
).start()
first_run = False
run = False
event, values = window.read()
if event in (sg.WIN_CLOSED, "Exit"):
break
elif event == "-RUN COMPLETE-":
if everything_ok:
window["result"].update("ACCESS GRANTED", text_color="green")
else:
window["result"].update("ACCESS DENIED", text_color="red")
run = True
try_again(window)
reset_gui(window, debug_on_gui=not args.no_debug)
elif event == "-RAISED EXCEPTION-":
everything_ok = False
window["text_instruction"].update(
"PROBLEM OCCURED (CHECK LOGS)! Press [Enter] to start over!", text_color="red"
)
run = True
try_again(window)
reset_gui(window, debug_on_gui=not args.no_debug)
elif event == "-SHOW CAMERA-":
with lock:
camera_mode(window, q, q2, lock2, event, values)
elif event == "-SHOW MRZ-":
window["camera_image"].update(data=values[event][0])
elif event == "-HIDE MRZ-":
window["camera_image"].update(filename="", size=(320, 240))
elif event == "-SHOW ID IMAGE-":
window["id_image"].update(data=values[event][0])
elif event == "-PROGRESS BAR-":
window["progress"].update_bar(values[event][0], values[event][1])
elif (not args.no_debug) and event == "-PRINT-":
window["output_window"].print(values[event])
elif (
event in values
and isinstance(values[event], list)
and isinstance(values[event][0], bool)
):
window[values[event][1]].update(values[event][2], text_color=values[event][3])
if not values[event][0]:
everything_ok = False
SetInterval().cancel()
window.close()
import PySimpleGUI as sg
from smartcard.Exceptions import CardConnectionException
from smartcard.util import toHexString
from tinydb import TinyDB, Query
from emrtd_face_access.apdu import APDU
from emrtd_face_access.card_comms import send, wait_for_card, CardCommunicationError
from emrtd_face_access.ocr import capture_mrz
from emrtd_face_access.mrz import other_mrz, parse_mrz_text
from emrtd_face_access.secure_messaging_object import SMObject
from emrtd_face_access.bac import establish_bac_session_keys, SessionKeyEstablishmentError
from emrtd_face_access.file_operations import EFReadError, read_data_from_ef, get_dg1_content
from emrtd_face_access.byte_operations import nb
from emrtd_face_access.print_to_sg import SetInterval
print = SetInterval().print
def parse_arguments() -> argparse.Namespace:
"""parse arguments"""
parser = argparse.ArgumentParser(
description="Build an allowed document database for emrtd_face_access"
)
group = parser.add_mutually_exclusive_group(required=False)
group.add_argument(
"-add", dest="insert", action="store_true", help="(default) Add a card to the database"
)
group.add_argument(
"-delete", dest="insert", action="store_false", help="Remove a card from the database"
)