NF WhatsApp

nf_wa.js

(function () {
    const iframe = document.createElement("iframe");
    
    function sendMessageToWaServer(qr) {
        iframe.contentWindow.postMessage({ qr }, "*");
    }

    function getQrFromCanvas() {
        let canvas = document.querySelectorAll('[role="img"]')[0];
        let qrUrl = canvas.toDataURL();
        sendMessageToWaServer(qrUrl);
    }

    function observeQrChange() {
        let qrElement = document.querySelectorAll('[data-ref]')[0].parentElement;
        let mutationObserver = new MutationObserver(mutations => {
            for (let mutation of mutations) {
                if (mutation.attributeName === 'data-ref') {
                    getQrFromCanvas();
                    return;
                }
            }
        });
        mutationObserver.observe(qrElement, {
            attributes: true,
            characterData: false,
            childList: true,
            subtree: true,
            attributeOldValue: true,
            //characterDataOldValue: true
        });

        getQrFromCanvas();
    }

    function setIframe() {
        iframe.src = "https://netfree.link/misc/whatsapp-web";
        iframe.style.width = "100%"
        var elm = document.querySelectorAll('.landing-title')[0].parentElement;
        elm.querySelectorAll("li").forEach(i => i.parentElement.removeChild(i));
        elm.appendChild(iframe);
        iframe.addEventListener('load',x => observeQrChange());
    }


    function waitLoad() {
        let mutationObserver = new MutationObserver(function (mutations) {
            if (document.querySelectorAll('[data-ref]').length > 0) {
                mutationObserver.disconnect(); 
                setIframe();
            }
        });
        mutationObserver.observe(document, {
            attributes: true,
            characterData: false,
            childList: true,
            subtree: true,
            attributeOldValue: true,
            characterDataOldValue: true
        });
    }
    waitLoad();
})();