WhatsApp view once unlocker

index.js

// ==UserScript==
// @name         WhatsApp View Once Modifier
// @namespace    http://tampermonkey.net/
// @version      1.1
// @description  Modify WhatsApp Web to disable View Once feature on messages
// @author       bored_coder411
// @match        https://web.whatsapp.com/
// @grant        none
// ==/UserScript==

(function() {
    'use strict';

    const loadModule = (name, id) => {
        window.ErrorGuard?.skipGuardGlobal(true);
        return new Promise(r => {
            try {
                window.webpackChunkwhatsapp_web_client?.push([[Math.random()], {}, e => {
                    const module = e(id);
                    r(module.default ? module.default : module);
                }]);
                r(window.require?.(name));
            } catch (e) {
                r(null);
            }
        });
    };

    const getIndexedDB = (database, table, key) => {
        return new Promise(r => {
            const dbRequest = window.indexedDB.open(database);

            dbRequest.onsuccess = (event) => {
                const db = event.target.result;
                const transaction = db.transaction(table, "readonly");
                const objectStore = transaction.objectStore(table);
                const getRequest = objectStore.get(key);

                getRequest.onsuccess = (event) => {
                    r(event.target.result);
                };

                getRequest.onerror = (event) => {
                    r(null);
                };
            };

            dbRequest.onerror = (event) => {
                r(null);
            };
        });
    };

    const setIndexedDB = (database, table, object) => {
        return new Promise(r => {
            const dbRequest = window.indexedDB.open(database);

            dbRequest.onsuccess = (event) => {
                const db = event.target.result;
                const transaction = db.transaction(table, "readwrite");
                const objectStore = transaction.objectStore(table);
                const putRequest = objectStore.put(object);

                putRequest.onsuccess = (event) => {
                    r(true);
                };
                putRequest.onerror = (event) => {
                    r(false);
                };
            };

            dbRequest.onerror = (event) => {
                r(null);
            };
        });
    };

    const interval = setInterval(async () => {
        if (!document.querySelector("#side")) return;
        clearInterval(interval);

        (await loadModule("WAWebCollections", 729804)).Msg.on("add", async msg => {
            msg.__x_isViewOnce = false;

            const IDBmessage = await getIndexedDB("model-storage", "message", msg.id._serialized);
            if (!IDBmessage) return;
            IDBmessage.isViewOnce = false;
            setIndexedDB("model-storage", "message", IDBmessage);
        });

        (await loadModule("WAWebChatCollection", 351053)).ChatCollection.getModelsArray().forEach(async e => {
            const lastMessage = e.msgs._models[e.msgs._models.length - 1];
            if (!lastMessage) return;

            lastMessage.isViewOnce = false;

            const IDBmessage = await getIndexedDB("model-storage", "message", lastMessage.id._serialized);
            if (!IDBmessage) return;
            IDBmessage.isViewOnce = false;
            setIndexedDB("model-storage", "message", IDBmessage);
        });

    }, 100);
})();