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126 lines
3.6 KiB
126 lines
3.6 KiB
from trezor import config, loop, ui, wire
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from trezor.messages import ButtonRequestType
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from trezor.messages.ButtonAck import ButtonAck
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from trezor.messages.ButtonRequest import ButtonRequest
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from trezor.pin import pin_to_int
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from trezor.ui.pin import CANCELLED, PinDialog
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from trezor.ui.popup import Popup
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from trezor.ui.text import Text
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from apps.common.sd_salt import request_sd_salt
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from apps.common.storage import device
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if False:
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from typing import Any, Optional, Tuple
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if __debug__:
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from apps.debug import input_signal
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class PinCancelled(Exception):
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pass
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class PinInvalid(Exception):
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pass
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async def request_pin(
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prompt: str = "Enter your PIN",
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attempts_remaining: int = None,
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allow_cancel: bool = True,
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) -> str:
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if attempts_remaining is None:
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subprompt = None
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elif attempts_remaining == 1:
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subprompt = "This is your last attempt"
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else:
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subprompt = "%s attempts remaining" % attempts_remaining
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dialog = PinDialog(prompt, subprompt, allow_cancel)
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while True:
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if __debug__:
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pin = await loop.race(dialog, input_signal())
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else:
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pin = await dialog
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if pin is CANCELLED:
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raise PinCancelled
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assert isinstance(pin, str)
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return pin
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async def request_pin_ack(ctx: wire.Context, *args: Any, **kwargs: Any) -> str:
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try:
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await ctx.call(ButtonRequest(code=ButtonRequestType.Other), ButtonAck)
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pin = await ctx.wait(request_pin(*args, **kwargs))
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assert isinstance(pin, str)
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return pin
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except PinCancelled:
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raise wire.ActionCancelled("Cancelled")
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async def request_pin_confirm(ctx: wire.Context, *args: Any, **kwargs: Any) -> str:
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while True:
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pin1 = await request_pin_ack(ctx, "Enter new PIN", *args, **kwargs)
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pin2 = await request_pin_ack(ctx, "Re-enter new PIN", *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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async def pin_mismatch() -> None:
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text = Text("PIN mismatch", ui.ICON_WRONG, ui.RED)
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text.normal("The PINs you entered", "do not match.")
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text.normal("")
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text.normal("Please try again.")
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popup = Popup(text, 3000) # show for 3 seconds
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await popup
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async def request_pin_and_sd_salt(
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ctx: wire.Context, prompt: str = "Enter your PIN", allow_cancel: bool = True
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) -> Tuple[str, Optional[bytearray]]:
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salt_auth_key = device.get_sd_salt_auth_key()
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if salt_auth_key is not None:
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salt = await request_sd_salt(ctx, salt_auth_key) # type: Optional[bytearray]
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else:
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salt = None
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if config.has_pin():
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pin = await request_pin_ack(ctx, prompt, config.get_pin_rem(), allow_cancel)
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else:
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pin = ""
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return pin, salt
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async def verify_user_pin(
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prompt: str = "Enter your PIN", allow_cancel: bool = True, retry: bool = True
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) -> None:
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salt_auth_key = device.get_sd_salt_auth_key()
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if salt_auth_key is not None:
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salt = await request_sd_salt(None, salt_auth_key) # type: Optional[bytearray]
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else:
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salt = None
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if not config.has_pin() and not config.check_pin(pin_to_int(""), salt):
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raise RuntimeError
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while retry:
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pin = await request_pin(prompt, config.get_pin_rem(), allow_cancel)
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if config.check_pin(pin_to_int(pin), salt):
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return
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else:
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prompt = "Wrong PIN, enter again"
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raise PinInvalid
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async def show_pin_invalid(ctx: wire.Context) -> None:
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from apps.common.confirm import confirm
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text = Text("Wrong PIN", ui.ICON_WRONG, ui.RED)
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text.normal("The PIN you entered is", "invalid.")
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await confirm(ctx, text, confirm=None, cancel="Close")
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