@trezor/transport/lib/pinger/ping.browser.js

Low level library facilitating protocol buffers based communication with Trezor devices

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.ping = void 0;
const tslib_1 = require("tslib");
const utils_1 = require("@trezor/utils");
const pingWorker_1 = tslib_1.__importDefault(require("./pingWorker"));
const init = async () => {
    const worker = (0, pingWorker_1.default)();
    await new Promise((resolve, reject) => {
        setTimeout(() => reject(new Error('worker_timeout')), 5000);
        worker.onmessage = message => {
            if (message?.data?.payload?.success) {
                resolve();
            }
        };
        worker.onerror = error => {
            try {
                worker.terminate();
            }
            catch {
            }
            reject(new Error(error.message));
        };
    });
    const deferred = (0, utils_1.createDeferredManager)();
    worker.onmessage = ({ data: { id, payload } }) => {
        deferred.resolve(id, payload.success);
    };
    worker.onerror = error => {
        deferred.rejectAll(error);
    };
    const post = (url) => {
        const { promiseId: id, promise } = deferred.create();
        worker.postMessage({ id, payload: { url } });
        return promise;
    };
    return { post };
};
const lazy = (0, utils_1.createLazy)(init);
const ping = (url) => lazy.getOrInit().then(({ post }) => post(url));
exports.ping = ping;
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