trezor-firmware/firmware/fsm_msg_stellar.h

/*
 * This file is part of the TREZOR project, https://trezor.io/
 *
 * Copyright (C) 2018 ZuluCrypto <zulucrypto@protonmail.com>
 *
 * This library is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this library.  If not, see <http://www.gnu.org/licenses/>.
 */

void fsm_msgStellarGetAddress(const StellarGetAddress *msg)
{
    RESP_INIT(StellarAddress);

    CHECK_INITIALIZED

    CHECK_PIN

    const HDNode *node = stellar_deriveNode(msg->address_n, msg->address_n_count);
    if (!node) {
        fsm_sendFailure(FailureType_Failure_ProcessError, _("Failed to derive private key"));
        return;
    }

    if (msg->has_show_display && msg->show_display) {
        const char **str_addr_rows = stellar_lineBreakAddress(node->public_key + 1);
        layoutDialogSwipe(&bmp_icon_question, _("Cancel"), _("Confirm"), _("Share public account ID?"),
            str_addr_rows[0],
            str_addr_rows[1],
            str_addr_rows[2],
            NULL,
            NULL, NULL
            );
        if (!protectButton(ButtonRequestType_ButtonRequest_ProtectCall, false)) {
            fsm_sendFailure(FailureType_Failure_ActionCancelled, NULL);
            layoutHome();
            return;
        }
    }

    resp->has_address = true;
    stellar_publicAddressAsStr(node->public_key + 1, resp->address, sizeof(resp->address));

    msg_write(MessageType_MessageType_StellarAddress, resp);

    layoutHome();
}

void fsm_msgStellarSignTx(const StellarSignTx *msg)
{
    CHECK_INITIALIZED
    CHECK_PIN

    if (!stellar_signingInit(msg)) {
        fsm_sendFailure(FailureType_Failure_ProcessError, _("Failed to derive private key"));
        layoutHome();
        return;
    }

    // Confirm transaction basics
    stellar_layoutTransactionSummary(msg);

    // Respond with a request for the first operation
    RESP_INIT(StellarTxOpRequest);

    msg_write(MessageType_MessageType_StellarTxOpRequest, resp);
}

void fsm_msgStellarCreateAccountOp(const StellarCreateAccountOp *msg)
{
    if (!stellar_confirmCreateAccountOp(msg)) return;

    if (stellar_allOperationsConfirmed()) {
        RESP_INIT(StellarSignedTx);

        stellar_fillSignedTx(resp);
        msg_write(MessageType_MessageType_StellarSignedTx, resp);
        layoutHome();
    }
    // Request the next operation to sign
    else {
        RESP_INIT(StellarTxOpRequest);

        msg_write(MessageType_MessageType_StellarTxOpRequest, resp);
    }
}

void fsm_msgStellarPaymentOp(const StellarPaymentOp *msg)
{
    // This will display additional dialogs to the user
    if (!stellar_confirmPaymentOp(msg)) return;

    // Last operation was confirmed, send a StellarSignedTx
    if (stellar_allOperationsConfirmed()) {
        RESP_INIT(StellarSignedTx);

        stellar_fillSignedTx(resp);
        msg_write(MessageType_MessageType_StellarSignedTx, resp);
        layoutHome();
    }
    // Request the next operation to sign
    else {
        RESP_INIT(StellarTxOpRequest);

        msg_write(MessageType_MessageType_StellarTxOpRequest, resp);
    }
}

void fsm_msgStellarPathPaymentOp(const StellarPathPaymentOp *msg)
{
    if (!stellar_confirmPathPaymentOp(msg)) return;

    if (stellar_allOperationsConfirmed()) {
        RESP_INIT(StellarSignedTx);

        stellar_fillSignedTx(resp);
        msg_write(MessageType_MessageType_StellarSignedTx, resp);
        layoutHome();
    }
    // Request the next operation to sign
    else {
        RESP_INIT(StellarTxOpRequest);

        msg_write(MessageType_MessageType_StellarTxOpRequest, resp);
    }
}

void fsm_msgStellarManageOfferOp(const StellarManageOfferOp *msg)
{
    if (!stellar_confirmManageOfferOp(msg)) return;

    if (stellar_allOperationsConfirmed()) {
        RESP_INIT(StellarSignedTx);

        stellar_fillSignedTx(resp);
        msg_write(MessageType_MessageType_StellarSignedTx, resp);
        layoutHome();
    }
    // Request the next operation to sign
    else {
        RESP_INIT(StellarTxOpRequest);

        msg_write(MessageType_MessageType_StellarTxOpRequest, resp);
    }
}

void fsm_msgStellarCreatePassiveOfferOp(const StellarCreatePassiveOfferOp *msg)
{
    if (!stellar_confirmCreatePassiveOfferOp(msg)) return;

    if (stellar_allOperationsConfirmed()) {
        RESP_INIT(StellarSignedTx);

        stellar_fillSignedTx(resp);
        msg_write(MessageType_MessageType_StellarSignedTx, resp);
        layoutHome();
    }
    // Request the next operation to sign
    else {
        RESP_INIT(StellarTxOpRequest);

        msg_write(MessageType_MessageType_StellarTxOpRequest, resp);
    }
}

void fsm_msgStellarSetOptionsOp(const StellarSetOptionsOp *msg)
{
    if (!stellar_confirmSetOptionsOp(msg)) return;

    if (stellar_allOperationsConfirmed()) {
        RESP_INIT(StellarSignedTx);

        stellar_fillSignedTx(resp);
        msg_write(MessageType_MessageType_StellarSignedTx, resp);
        layoutHome();
    }
    // Request the next operation to sign
    else {
        RESP_INIT(StellarTxOpRequest);

        msg_write(MessageType_MessageType_StellarTxOpRequest, resp);
    }
}

void fsm_msgStellarChangeTrustOp(const StellarChangeTrustOp *msg)
{
    if (!stellar_confirmChangeTrustOp(msg)) return;

    if (stellar_allOperationsConfirmed()) {
        RESP_INIT(StellarSignedTx);

        stellar_fillSignedTx(resp);
        msg_write(MessageType_MessageType_StellarSignedTx, resp);
        layoutHome();
    }
    // Request the next operation to sign
    else {
        RESP_INIT(StellarTxOpRequest);

        msg_write(MessageType_MessageType_StellarTxOpRequest, resp);
    }
}

void fsm_msgStellarAllowTrustOp(const StellarAllowTrustOp *msg)
{
    if (!stellar_confirmAllowTrustOp(msg)) return;

    if (stellar_allOperationsConfirmed()) {
        RESP_INIT(StellarSignedTx);

        stellar_fillSignedTx(resp);
        msg_write(MessageType_MessageType_StellarSignedTx, resp);
        layoutHome();
    }
    // Request the next operation to sign
    else {
        RESP_INIT(StellarTxOpRequest);

        msg_write(MessageType_MessageType_StellarTxOpRequest, resp);
    }
}

void fsm_msgStellarAccountMergeOp(const StellarAccountMergeOp *msg)
{
    if (!stellar_confirmAccountMergeOp(msg)) return;

    if (stellar_allOperationsConfirmed()) {
        RESP_INIT(StellarSignedTx);

        stellar_fillSignedTx(resp);
        msg_write(MessageType_MessageType_StellarSignedTx, resp);
        layoutHome();
    }
    // Request the next operation to sign
    else {
        RESP_INIT(StellarTxOpRequest);

        msg_write(MessageType_MessageType_StellarTxOpRequest, resp);
    }
}

void fsm_msgStellarManageDataOp(const StellarManageDataOp *msg)
{
    if (!stellar_confirmManageDataOp(msg)) return;

    if (stellar_allOperationsConfirmed()) {
        RESP_INIT(StellarSignedTx);

        stellar_fillSignedTx(resp);
        msg_write(MessageType_MessageType_StellarSignedTx, resp);
        layoutHome();
    }
    // Request the next operation to sign
    else {
        RESP_INIT(StellarTxOpRequest);

        msg_write(MessageType_MessageType_StellarTxOpRequest, resp);
    }
}

void fsm_msgStellarBumpSequenceOp(const StellarBumpSequenceOp *msg)
{
    if (!stellar_confirmBumpSequenceOp(msg)) return;

    if (stellar_allOperationsConfirmed()) {
        RESP_INIT(StellarSignedTx);

        stellar_fillSignedTx(resp);
        msg_write(MessageType_MessageType_StellarSignedTx, resp);
        layoutHome();
    }
    // Request the next operation to sign
    else {
        RESP_INIT(StellarTxOpRequest);

        msg_write(MessageType_MessageType_StellarTxOpRequest, resp);
    }
}