trezor-firmware/core/src/apps/ripple/get_address.py

from typing import TYPE_CHECKING

from trezor.messages import RippleAddress, RippleGetAddress
from trezor.ui.layouts import show_address

from apps.common import paths
from apps.common.keychain import auto_keychain

from .helpers import address_from_public_key

if TYPE_CHECKING:
    from apps.common.keychain import Keychain
    from trezor.wire import Context


@auto_keychain(__name__)
async def get_address(
    ctx: Context, msg: RippleGetAddress, keychain: Keychain
) -> RippleAddress:
    await paths.validate_path(ctx, keychain, msg.address_n)

    node = keychain.derive(msg.address_n)
    pubkey = node.public_key()
    address = address_from_public_key(pubkey)

    if msg.show_display:
        title = paths.address_n_to_str(msg.address_n)
        await show_address(ctx, address=address, title=title)

    return RippleAddress(address=address)