def call_after(self, func, *args):
from main import loop
async def doit():
# we want to provide nice response before dying
await sleep_ms(500)
func(*args)
loop.create_task(doit())
return None
async def start_login_sequence():
# Boot up login sequence here.
#
from main import pa, settings, dis, loop, numpad
from ux import idle_logout
if pa.is_blank():
# Blank devices, with no PIN set all, can continue w/o login
# Do green-light set immediately after firmware upgrade
if version.is_fresh_version():
pa.greenlight_firmware()
dis.show()
goto_top_menu()
return
# maybe show a nickname before we do anything
nickname = settings.get('nick', None)
if nickname:
try:
await show_nickname(nickname)
except: pass
# Allow impatient devs and crazy people to skip the PIN
guess = settings.get('_skip_pin', None)
if guess is not None:
try:
dis.fullscreen("(Skip PIN)")
pa.setup(guess)
pa.login()
except: pass
# if that didn't work, or no skip defined, force
# them to login succefully.
while not pa.is_successful():
# always get a PIN and login first
await block_until_login()
# Must re-read settings after login
settings.set_key()
settings.load()
# implement "login countdown" feature
delay = settings.get('lgto', 0)
if delay:
pa.reset()
await login_countdown(delay)
await block_until_login()
# implement idle timeout now that we are logged-in
loop.create_task(idle_logout())
# Do green-light set immediately after firmware upgrade
if not pa.is_secondary:
if version.is_fresh_version():
pa.greenlight_firmware()
dis.show()
# Populate xfp/xpub values, if missing.
# - can happen for first-time login of duress wallet
# - may indicate lost settings, which we can easily recover from
# - these values are important to USB protocol
if not (settings.get('xfp', 0) and settings.get('xpub', 0)) and not pa.is_secret_blank():
try:
import stash
# Recalculate xfp/xpub values (depends both on secret and chain)
with stash.SensitiveValues() as sv:
sv.capture_xpub()
except Exception as exc:
# just in case, keep going; we're not useless and this
# is early in boot process
print("XFP save failed: %s" % exc)
# If HSM policy file is available, offer to start that,
# **before** the USB is even enabled.
if version.has_fatram:
try:
import hsm, hsm_ux
if hsm.hsm_policy_available():
ar = await hsm_ux.start_hsm_approval(usb_mode=False, startup_mode=True)
if ar:
await ar.interact()
except: pass
# Allow USB protocol, now that we are auth'ed
from usb import enable_usb
enable_usb(loop, False)
goto_top_menu()
