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294 lines
9.8 KiB
294 lines
9.8 KiB
from typing import TYPE_CHECKING
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import trezorui2
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from trezor import utils
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from trezor.enums import ButtonRequestType
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from trezor.ui.layouts import confirm_action
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from trezor.wire import DataError
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if TYPE_CHECKING:
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from trezor.enums import SafetyCheckLevel
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from trezor.messages import ApplySettings, Success
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BRT_PROTECT_CALL = ButtonRequestType.ProtectCall # CACHE
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if utils.INTERNAL_MODEL in ("T1B1", "T2B1"):
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def _validate_homescreen_model_specific(homescreen: bytes) -> None:
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from trezor.ui import HEIGHT, WIDTH
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try:
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w, h, is_grayscale = trezorui2.toif_info(homescreen)
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except ValueError:
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raise DataError("Invalid homescreen")
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if w != WIDTH or h != HEIGHT:
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raise DataError(f"Homescreen must be {WIDTH}x{HEIGHT} pixel large")
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if not is_grayscale:
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raise DataError("Homescreen must be grayscale")
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else:
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def _validate_homescreen_model_specific(homescreen: bytes) -> None:
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from trezor.ui import HEIGHT, WIDTH
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try:
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w, h, mcu_height = trezorui2.jpeg_info(homescreen)
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except ValueError:
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raise DataError("Invalid homescreen")
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if w != WIDTH or h != HEIGHT:
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raise DataError(f"Homescreen must be {WIDTH}x{HEIGHT} pixel large")
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if mcu_height > 16:
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raise DataError("Unsupported jpeg type")
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try:
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trezorui2.jpeg_test(homescreen)
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except ValueError:
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raise DataError("Invalid homescreen")
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def _validate_homescreen(homescreen: bytes) -> None:
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import storage.device as storage_device
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if homescreen == b"":
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return
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if len(homescreen) > storage_device.HOMESCREEN_MAXSIZE:
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raise DataError(
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f"Homescreen is too large, maximum size is {storage_device.HOMESCREEN_MAXSIZE} bytes"
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)
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_validate_homescreen_model_specific(homescreen)
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async def apply_settings(msg: ApplySettings) -> Success:
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import storage.device as storage_device
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from trezor.messages import Success
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from trezor.wire import NotInitialized, ProcessError
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from apps.base import reload_settings_from_storage
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from apps.common import safety_checks
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if not storage_device.is_initialized():
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raise NotInitialized("Device is not initialized")
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homescreen = msg.homescreen # local_cache_attribute
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label = msg.label # local_cache_attribute
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auto_lock_delay_ms = msg.auto_lock_delay_ms # local_cache_attribute
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use_passphrase = msg.use_passphrase # local_cache_attribute
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passphrase_always_on_device = (
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msg.passphrase_always_on_device
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) # local_cache_attribute
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display_rotation = msg.display_rotation # local_cache_attribute
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msg_safety_checks = msg.safety_checks # local_cache_attribute
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experimental_features = msg.experimental_features # local_cache_attribute
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hide_passphrase_from_host = msg.hide_passphrase_from_host # local_cache_attribute
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if (
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homescreen is None
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and label is None
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and use_passphrase is None
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and passphrase_always_on_device is None
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and display_rotation is None
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and auto_lock_delay_ms is None
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and msg_safety_checks is None
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and experimental_features is None
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and hide_passphrase_from_host is None
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):
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raise ProcessError("No setting provided")
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if homescreen is not None:
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_validate_homescreen(homescreen)
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await _require_confirm_change_homescreen(homescreen)
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try:
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storage_device.set_homescreen(homescreen)
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except ValueError:
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raise DataError("Invalid homescreen")
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if label is not None:
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if len(label) > storage_device.LABEL_MAXLENGTH:
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raise DataError("Label too long")
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await _require_confirm_change_label(label)
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storage_device.set_label(label)
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if use_passphrase is not None:
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await _require_confirm_change_passphrase(use_passphrase)
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storage_device.set_passphrase_enabled(use_passphrase)
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if passphrase_always_on_device is not None:
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if not storage_device.is_passphrase_enabled():
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raise DataError("Passphrase is not enabled")
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await _require_confirm_change_passphrase_source(passphrase_always_on_device)
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storage_device.set_passphrase_always_on_device(passphrase_always_on_device)
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if auto_lock_delay_ms is not None:
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if auto_lock_delay_ms < storage_device.AUTOLOCK_DELAY_MINIMUM:
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raise ProcessError("Auto-lock delay too short")
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if auto_lock_delay_ms > storage_device.AUTOLOCK_DELAY_MAXIMUM:
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raise ProcessError("Auto-lock delay too long")
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await _require_confirm_change_autolock_delay(auto_lock_delay_ms)
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storage_device.set_autolock_delay_ms(auto_lock_delay_ms)
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if msg_safety_checks is not None:
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await _require_confirm_safety_checks(msg_safety_checks)
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safety_checks.apply_setting(msg_safety_checks)
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if display_rotation is not None:
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await _require_confirm_change_display_rotation(display_rotation)
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storage_device.set_rotation(display_rotation)
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if experimental_features is not None:
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await _require_confirm_experimental_features(experimental_features)
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storage_device.set_experimental_features(experimental_features)
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if hide_passphrase_from_host is not None:
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if safety_checks.is_strict():
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raise ProcessError("Safety checks are strict")
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await _require_confirm_hide_passphrase_from_host(hide_passphrase_from_host)
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storage_device.set_hide_passphrase_from_host(hide_passphrase_from_host)
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reload_settings_from_storage()
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return Success(message="Settings applied")
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async def _require_confirm_change_homescreen(homescreen: bytes) -> None:
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from trezor.ui.layouts import confirm_homescreen
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if homescreen == b"":
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await confirm_action(
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"set_homescreen",
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"Set homescreen",
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description="Do you really want to set default homescreen image?",
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br_code=BRT_PROTECT_CALL,
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)
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else:
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await confirm_homescreen(homescreen)
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async def _require_confirm_change_label(label: str) -> None:
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from trezor.ui.layouts import confirm_single
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await confirm_single(
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"set_label",
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"Device name",
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description="Change device name to {}?",
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description_param=label,
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verb="Change",
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)
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async def _require_confirm_change_passphrase(use: bool) -> None:
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on_or_off = "on" if use else "off"
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description = f"Turn {on_or_off} passphrase protection?"
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verb = f"Turn {on_or_off}"
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await confirm_action(
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"set_passphrase",
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"Passphrase settings",
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description=description,
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verb=verb,
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br_code=BRT_PROTECT_CALL,
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)
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async def _require_confirm_change_passphrase_source(
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passphrase_always_on_device: bool,
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) -> None:
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description = (
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"Do you really want to enter passphrase always on the device?"
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if passphrase_always_on_device
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else "Do you want to revoke the passphrase on device setting?"
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)
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await confirm_action(
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"set_passphrase_source",
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"Passphrase source",
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description=description,
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br_code=BRT_PROTECT_CALL,
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)
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async def _require_confirm_change_display_rotation(rotation: int) -> None:
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if rotation == 0:
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label = "north"
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elif rotation == 90:
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label = "east"
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elif rotation == 180:
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label = "south"
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elif rotation == 270:
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label = "west"
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else:
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raise DataError("Unsupported display rotation")
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await confirm_action(
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"set_rotation",
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"Change rotation",
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description="Do you want to change device rotation to {}?",
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description_param=label,
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br_code=BRT_PROTECT_CALL,
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)
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async def _require_confirm_change_autolock_delay(delay_ms: int) -> None:
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from trezor.strings import format_duration_ms
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await confirm_action(
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"set_autolock_delay",
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"Auto-lock delay",
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description="Auto-lock your Trezor after {} of inactivity?",
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description_param=format_duration_ms(delay_ms),
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br_code=BRT_PROTECT_CALL,
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)
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async def _require_confirm_safety_checks(level: SafetyCheckLevel) -> None:
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from trezor.enums import SafetyCheckLevel
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if level == SafetyCheckLevel.Strict:
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await confirm_action(
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"set_safety_checks",
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"Safety checks",
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description="Do you really want to enforce strict safety checks (recommended)?",
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br_code=BRT_PROTECT_CALL,
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)
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elif level in (SafetyCheckLevel.PromptAlways, SafetyCheckLevel.PromptTemporarily):
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# Reusing most stuff for both levels
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template = (
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"Trezor will{}allow you to approve some actions which might be unsafe."
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)
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description = template.format(
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" temporarily " if level == SafetyCheckLevel.PromptTemporarily else " "
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)
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await confirm_action(
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"set_safety_checks",
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"Safety override",
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"Are you sure?",
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description,
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hold=True,
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verb="Hold to confirm",
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reverse=True,
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br_code=BRT_PROTECT_CALL,
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)
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else:
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raise ValueError # enum value out of range
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async def _require_confirm_experimental_features(enable: bool) -> None:
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if enable:
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await confirm_action(
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"set_experimental_features",
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"Experimental mode",
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"Only for development and beta testing!",
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"Enable experimental features?",
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reverse=True,
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br_code=BRT_PROTECT_CALL,
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)
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async def _require_confirm_hide_passphrase_from_host(enable: bool) -> None:
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if enable:
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await confirm_action(
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"set_hide_passphrase_from_host",
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"Hide passphrase",
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description="Hide passphrase coming from host?",
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br_code=BRT_PROTECT_CALL,
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)
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