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283 lines
9.2 KiB
283 lines
9.2 KiB
import storage.recovery
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from trezor import strings, ui, wire
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from trezor.crypto.slip39 import MAX_SHARE_COUNT
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from trezor.messages import ButtonRequestType
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from trezor.ui.components.tt.scroll import Paginated
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from trezor.ui.components.tt.text import Text
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from trezor.ui.components.tt.word_select import WordSelector
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from trezor.ui.layouts import confirm_action, show_success, show_warning
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from apps.common import button_request
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from apps.common.confirm import confirm, info_confirm, require_confirm
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from .. import backup_types
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from . import word_validity
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from .keyboard_bip39 import Bip39Keyboard
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from .keyboard_slip39 import Slip39Keyboard
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from .recover import RecoveryAborted
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if False:
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from typing import Callable, Iterable
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from trezor.messages.ResetDevice import EnumTypeBackupType
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async def confirm_abort(ctx: wire.GenericContext, dry_run: bool = False) -> None:
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if dry_run:
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await confirm_action(
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ctx,
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"abort_recovery",
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"Abort seed check",
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description="Do you really want to abort the seed check?",
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icon=ui.ICON_WIPE,
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br_code=ButtonRequestType.ProtectCall,
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)
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else:
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await confirm_action(
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ctx,
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"abort_recovery",
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"Abort recovery",
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description="Do you really want to abort the recovery process?",
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action="All progress will be lost.",
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reverse=True,
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icon=ui.ICON_WIPE,
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br_code=ButtonRequestType.ProtectCall,
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)
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async def request_word_count(ctx: wire.GenericContext, dry_run: bool) -> int:
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await button_request(ctx, code=ButtonRequestType.MnemonicWordCount)
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if dry_run:
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text = Text("Seed check", ui.ICON_RECOVERY)
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else:
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text = Text("Recovery mode", ui.ICON_RECOVERY)
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text.normal("Number of words?")
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count = await ctx.wait(WordSelector(text))
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# WordSelector can return int, or string if the value came from debuglink
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# ctx.wait has a return type Any
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# Hence, it is easier to convert the returned value to int explicitly
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return int(count)
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async def request_mnemonic(
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ctx: wire.GenericContext, word_count: int, backup_type: EnumTypeBackupType | None
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) -> str | None:
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await button_request(ctx, code=ButtonRequestType.MnemonicInput)
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words: list[str] = []
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for i in range(word_count):
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if backup_types.is_slip39_word_count(word_count):
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keyboard: Slip39Keyboard | Bip39Keyboard = Slip39Keyboard(
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"Type word %s of %s:" % (i + 1, word_count)
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)
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else:
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keyboard = Bip39Keyboard("Type word %s of %s:" % (i + 1, word_count))
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word = await ctx.wait(keyboard)
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words.append(word)
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try:
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word_validity.check(backup_type, words)
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except word_validity.AlreadyAdded:
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await show_share_already_added(ctx)
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return None
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except word_validity.IdentifierMismatch:
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await show_identifier_mismatch(ctx)
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return None
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except word_validity.ThresholdReached:
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await show_group_threshold_reached(ctx)
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return None
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return " ".join(words)
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async def show_remaining_shares(
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ctx: wire.GenericContext,
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groups: Iterable[tuple[int, tuple[str, ...]]], # remaining + list 3 words
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shares_remaining: list[int],
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group_threshold: int,
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) -> None:
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pages: list[ui.Component] = []
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for remaining, group in groups:
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if 0 < remaining < MAX_SHARE_COUNT:
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text = Text("Remaining Shares")
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text.bold(
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strings.format_plural(
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"{count} more {plural} starting", remaining, "share"
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)
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)
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for word in group:
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text.normal(word)
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pages.append(text)
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elif (
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remaining == MAX_SHARE_COUNT and shares_remaining.count(0) < group_threshold
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):
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text = Text("Remaining Shares")
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groups_remaining = group_threshold - shares_remaining.count(0)
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text.bold(
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strings.format_plural(
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"{count} more {plural} starting", groups_remaining, "group"
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)
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)
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for word in group:
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text.normal(word)
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pages.append(text)
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await confirm(ctx, Paginated(pages), cancel=None)
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async def show_group_share_success(
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ctx: wire.GenericContext, share_index: int, group_index: int
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) -> None:
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text = Text("Success", ui.ICON_CONFIRM)
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text.bold("You have entered")
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text.bold("Share %s" % (share_index + 1))
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text.normal("from")
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text.bold("Group %s" % (group_index + 1))
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await confirm(ctx, text, confirm="Continue", cancel=None)
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async def show_dry_run_result(
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ctx: wire.GenericContext, result: bool, is_slip39: bool
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) -> None:
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if result:
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if is_slip39:
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text = "The entered recovery\nshares are valid and\nmatch what is currently\nin the device."
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else:
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text = "The entered recovery\nseed is valid and\nmatches the one\nin the device."
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await show_success(ctx, "success_dry_recovery", text, button="Continue")
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else:
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if is_slip39:
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text = "The entered recovery\nshares are valid but\ndo not match what is\ncurrently in the device."
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else:
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text = "The entered recovery\nseed is valid but does\nnot match the one\nin the device."
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await show_warning(ctx, "warning_dry_recovery", text, button="Continue")
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async def show_dry_run_different_type(ctx: wire.GenericContext) -> None:
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text = Text("Dry run failure", ui.ICON_CANCEL)
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text.normal("Seed in the device was")
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text.normal("created using another")
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text.normal("backup mechanism.")
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await require_confirm(
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ctx, text, ButtonRequestType.ProtectCall, cancel=None, confirm="Continue"
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)
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async def show_invalid_mnemonic(ctx: wire.GenericContext, word_count: int) -> None:
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if backup_types.is_slip39_word_count(word_count):
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await show_warning(
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ctx,
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"warning_invalid_share",
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"You have entered\nan invalid recovery\nshare.",
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)
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else:
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await show_warning(
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ctx,
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"warning_invalid_seed",
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"You have entered\nan invalid recovery\nseed.",
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)
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async def show_share_already_added(ctx: wire.GenericContext) -> None:
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await show_warning(
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ctx,
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"warning_known_share",
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"Share already entered,\nplease enter\na different share.",
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)
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async def show_identifier_mismatch(ctx: wire.GenericContext) -> None:
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await show_warning(
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ctx,
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"warning_mismatched_share",
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"You have entered\na share from another\nShamir Backup.",
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)
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async def show_group_threshold_reached(ctx: wire.GenericContext) -> None:
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await show_warning(
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ctx,
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"warning_group_threshold",
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"Threshold of this\ngroup has been reached.\nInput share from\ndifferent group.",
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)
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class RecoveryHomescreen(ui.Component):
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def __init__(self, text: str, subtext: str | None = None):
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super().__init__()
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self.text = text
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self.subtext = subtext
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self.dry_run = storage.recovery.is_dry_run()
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def on_render(self) -> None:
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if not self.repaint:
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return
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if self.dry_run:
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heading = "SEED CHECK"
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else:
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heading = "RECOVERY MODE"
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ui.header_warning(heading, clear=False)
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if not self.subtext:
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ui.display.text_center(ui.WIDTH // 2, 80, self.text, ui.BOLD, ui.FG, ui.BG)
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else:
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ui.display.text_center(ui.WIDTH // 2, 65, self.text, ui.BOLD, ui.FG, ui.BG)
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ui.display.text_center(
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ui.WIDTH // 2, 92, self.subtext, ui.NORMAL, ui.FG, ui.BG
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)
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ui.display.text_center(
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ui.WIDTH // 2, 130, "It is safe to eject Trezor", ui.NORMAL, ui.GREY, ui.BG
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)
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ui.display.text_center(
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ui.WIDTH // 2, 155, "and continue later", ui.NORMAL, ui.GREY, ui.BG
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)
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self.repaint = False
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if __debug__:
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def read_content(self) -> list[str]:
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return [self.__class__.__name__, self.text, self.subtext or ""]
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async def homescreen_dialog(
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ctx: wire.GenericContext,
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homepage: RecoveryHomescreen,
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button_label: str,
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info_func: Callable | None = None,
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) -> None:
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while True:
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if info_func:
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continue_recovery = await info_confirm(
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ctx,
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homepage,
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code=ButtonRequestType.RecoveryHomepage,
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confirm=button_label,
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info_func=info_func,
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info="Info",
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cancel="Abort",
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)
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else:
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continue_recovery = await confirm(
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ctx,
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homepage,
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code=ButtonRequestType.RecoveryHomepage,
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confirm=button_label,
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major_confirm=True,
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)
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if continue_recovery:
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# go forward in the recovery process
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break
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# user has chosen to abort, confirm the choice
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dry_run = storage.recovery.is_dry_run()
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try:
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await confirm_abort(ctx, dry_run)
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except wire.ActionCancelled:
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pass
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else:
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raise RecoveryAborted
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