trezor-firmware/src/apps/nem/multisig/__init__.py

from trezor.messages.NEMAggregateModification import NEMAggregateModification
from trezor.messages.NEMSignTx import NEMSignTx
from trezor.messages.NEMTransactionCommon import NEMTransactionCommon

from . import layout, serialize


async def ask(ctx, msg: NEMSignTx):
    await layout.ask_multisig(ctx, msg)


def initiate(public_key, common: NEMTransactionCommon, inner_tx: bytes) -> bytes:
    return serialize.serialize_multisig(common, public_key, inner_tx)


def cosign(
    public_key, common: NEMTransactionCommon, inner_tx: bytes, signer: bytes
) -> bytes:
    return serialize.serialize_multisig_signature(common, public_key, inner_tx, signer)


async def aggregate_modification(
    ctx,
    public_key: bytes,
    common: NEMTransactionCommon,
    aggr: NEMAggregateModification,
    multisig: bool,
):
    await layout.ask_aggregate_modification(ctx, common, aggr, multisig)
    w = serialize.serialize_aggregate_modification(common, aggr, public_key)

    for m in aggr.modifications:
        serialize.serialize_cosignatory_modification(w, m.type, m.public_key)

    if aggr.relative_change:
        serialize.serialize_minimum_cosignatories(w, aggr.relative_change)
    return w