95 lines
3.1 KiB
Python
95 lines
3.1 KiB
Python
from trezor import config, loop, ui, wire
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from trezor.messages import FailureType, PinMatrixRequestType
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from trezor.messages.ButtonRequest import ButtonRequest
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from trezor.messages.ButtonRequestType import Other
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from trezor.messages.Failure import Failure
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from trezor.messages.Success import Success
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from trezor.messages import wire_types
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from trezor.pin import pin_to_int, show_pin_timeout
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from trezor.ui.text import Text
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from apps.common.confirm import require_confirm
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from apps.common.request_pin import request_pin, PinCancelled
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async def change_pin(ctx, msg):
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# confirm that user wants to change the pin
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await confirm_change_pin(ctx, msg)
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# get current pin, return failure if invalid
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if config.has_pin():
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curpin = await request_pin_ack(ctx, PinMatrixRequestType.Current)
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if not config.check_pin(pin_to_int(curpin), show_pin_timeout):
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return Failure(code=FailureType.PinInvalid, message='PIN invalid')
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else:
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curpin = ''
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# get new pin
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if not msg.remove:
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newpin = await request_pin_confirm(ctx)
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else:
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newpin = ''
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# write into storage
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if config.change_pin(pin_to_int(curpin), pin_to_int(newpin), show_pin_timeout):
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if newpin:
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return Success(message='PIN changed')
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else:
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return Success(message='PIN removed')
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else:
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return Failure(code=FailureType.PinInvalid, message='PIN invalid')
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def confirm_change_pin(ctx, msg):
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has_pin = config.has_pin()
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if msg.remove and has_pin: # removing pin
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return require_confirm(ctx, Text(
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'Remove PIN', ui.ICON_CONFIG,
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'Do you really want to', ui.BOLD,
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'remove current PIN?'))
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if not msg.remove and has_pin: # changing pin
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return require_confirm(ctx, Text(
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'Change PIN', ui.ICON_CONFIG,
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'Do you really want to', ui.BOLD,
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'change current PIN?'))
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if not msg.remove and not has_pin: # setting new pin
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return require_confirm(ctx, Text(
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'Change PIN', ui.ICON_CONFIG,
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'Do you really want to', ui.BOLD,
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'set new PIN?'))
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async def request_pin_ack(ctx, *args, **kwargs):
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# TODO: send PinMatrixRequest here, with specific code?
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await ctx.call(ButtonRequest(code=Other), wire_types.ButtonAck)
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try:
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return await request_pin(*args, **kwargs)
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except PinCancelled:
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raise wire.FailureError(FailureType.ActionCancelled, 'Cancelled')
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async def request_pin_confirm(ctx, *args, **kwargs):
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while True:
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pin1 = await request_pin_ack(
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ctx, code=PinMatrixRequestType.NewFirst, *args, **kwargs)
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pin2 = await request_pin_ack(
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ctx, code=PinMatrixRequestType.NewSecond, *args, **kwargs)
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if pin1 == pin2:
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return pin1
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await pin_mismatch()
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@ui.layout
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async def pin_mismatch():
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text = Text(
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'PIN mismatch', ui.ICON_WRONG,
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'Entered PINs do not',
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'match each other.',
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'',
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'Please, try again...', icon_color=ui.RED)
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text.render()
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await loop.sleep(3 * 1000 * 1000)
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