trezor-firmware/src/apps/wallet/get_address.py

from trezor.messages import InputScriptType
from trezor.messages.Address import Address

from apps.common import coins, seed
from apps.common.display_address import show_address, show_qr
from apps.wallet.sign_tx import addresses


async def get_address(ctx, msg):
    coin_name = msg.coin_name or "Bitcoin"
    coin = coins.by_name(coin_name)

    node = await seed.derive_node(ctx, msg.address_n, curve_name=coin.curve_name)
    address = addresses.get_address(msg.script_type, coin, node, msg.multisig)
    address_short = addresses.address_short(coin, address)

    if msg.show_display:
        while True:
            if await show_address(ctx, address_short):
                break
            if await show_qr(
                ctx,
                address.upper()
                if msg.script_type == InputScriptType.SPENDWITNESS
                else address,
            ):
                break

    return Address(address=address)