@casual-simulation/aux-vm-browser/html/IframeEntry.js

A set of utilities required to securely run an AUX in a web browser.

/* CasualOS is a set of web-based tools designed to facilitate the creation of real-time, multi-user, context-aware interactive experiences.
 *
 * Copyright (c) 2019-2025 Casual Simulation, Inc.
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as
 * published by the Free Software Foundation, either version 3 of the
 * License, or (at your option) any later version.
 *
 * This program 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 Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */
import '@casual-simulation/aux-vm/globalThis-polyfill';
globalThis.addEventListener('message', (message) => {
    if (message.data.type === 'load_script') {
        const id = message.data.id;
        const source = message.data.source;
        let script;
        const existingScript = document.getElementById(`script-${id}`);
        if (existingScript && existingScript instanceof HTMLScriptElement) {
            script = existingScript;
        }
        else {
            script = document.createElement('script');
            script.setAttribute('id', `script-${id}`);
        }
        script.textContent = source;
        document.body.append(script);
        message.source.postMessage({
            type: 'script_loaded',
            id,
        }, message.origin);
    }
    else if (message.data.type === 'load_text') {
        const id = message.data.id;
        const source = message.data.text;
        let paragraph;
        const existingText = document.getElementById(`script-${id}`);
        if (existingText) {
            paragraph = existingText;
        }
        else {
            paragraph = document.createElement(message.data.element || 'p');
            paragraph.setAttribute('id', `text-${id}`);
        }
        paragraph.textContent = source;
        document.body.append(paragraph);
        message.source.postMessage({
            type: 'text_loaded',
            id,
        }, message.origin);
    }
    else if (message.data.type === 'reload') {
        location.reload();
    }
    else if (message.data.type === 'inject_port') {
        const id = message.data.id;
        const port = message.data.port;
        const global = globalThis;
        if (!global.__injectedPorts) {
            global.__injectedPorts = {};
        }
        global.__injectedPorts[id] = port;
        message.source.postMessage({
            type: 'port_injected',
            id,
        }, message.origin);
    }
});
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