Direct Stream Caster

Dynamically detect and cast HLS streams via Chromecast on any site (e.g., StreamEast)

K instalaci tototo skriptu si budete muset nainstalovat rozšíření jako Tampermonkey, Greasemonkey nebo Violentmonkey.

You will need to install an extension such as Tampermonkey to install this script.

K instalaci tohoto skriptu si budete muset nainstalovat rozšíření jako Tampermonkey nebo Violentmonkey.

K instalaci tohoto skriptu si budete muset nainstalovat rozšíření jako Tampermonkey nebo Userscripts.

You will need to install an extension such as Tampermonkey to install this script.

K instalaci tohoto skriptu si budete muset nainstalovat manažer uživatelských skriptů.

(Už mám manažer uživatelských skriptů, nechte mě ho nainstalovat!)

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

(Už mám manažer uživatelských stylů, nechte mě ho nainstalovat!)

// ==UserScript==
// @name         Direct Stream Caster
// @namespace    https://tampermonkey.net
// @version      3.2
// @description  Dynamically detect and cast HLS streams via Chromecast on any site (e.g., StreamEast)
// @author       sharmanhall
// @match        *://*/*
// @grant        none
// @run-at       document-start
// @license      MIT
// ==/UserScript==

(function () {
    'use strict';

    let detectedStreamUrl = null;
    const REFERER = "https://googlapisapi.com";

    // Hook fetch and XHR to sniff for .m3u8 playlist requests
    const originalFetch = window.fetch;
    window.fetch = async (...args) => {
        if (args[0] && typeof args[0] === 'string' && args[0].includes('.m3u8')) {
            console.log('[CastDetect] Found .m3u8 via fetch:', args[0]);
            detectedStreamUrl = args[0];
        }
        return originalFetch(...args);
    };

    const originalXHROpen = XMLHttpRequest.prototype.open;
    XMLHttpRequest.prototype.open = function (method, url) {
        if (url.includes('.m3u8')) {
            console.log('[CastDetect] Found .m3u8 via XHR:', url);
            detectedStreamUrl = url;
        }
        return originalXHROpen.apply(this, arguments);
    };

    // Inject Cast SDK
    const sdkScript = document.createElement('script');
    sdkScript.src = 'https://www.gstatic.com/cv/js/sender/v1/cast_sender.js?loadCastFramework=1';
    document.head.appendChild(sdkScript);

    // Wait for Cast API and then inject cast button
    window.__onGCastApiAvailable = function (isAvailable) {
        if (!isAvailable) return;

        cast.framework.CastContext.getInstance().setOptions({
            receiverApplicationId: chrome.cast.media.DEFAULT_MEDIA_RECEIVER_APP_ID,
            autoJoinPolicy: chrome.cast.AutoJoinPolicy.ORIGIN_SCOPED
        });

        addCastButton();
    };

    function addCastButton() {
        if (document.getElementById('castToChromecast')) return;

        const btn = document.createElement('button');
        btn.id = 'castToChromecast';
        btn.textContent = '📺 Cast Stream';
        Object.assign(btn.style, {
            position: 'fixed',
            bottom: '20px',
            left: '20px',
            zIndex: 9999,
            padding: '12px 20px',
            backgroundColor: '#1e88e5',
            color: 'white',
            border: 'none',
            borderRadius: '6px',
            fontSize: '16px',
            cursor: 'pointer',
            fontWeight: 'bold',
            boxShadow: '0 0 10px rgba(0,0,0,0.5)'
        });

        btn.onclick = () => {
            const context = cast.framework.CastContext.getInstance();
            const session = context.getCurrentSession();

            if (!session) {
                alert("No Chromecast session. Click the Cast icon in your Chrome toolbar first.");
                return;
            }

            if (!detectedStreamUrl) {
                alert("No stream detected yet. Wait for the stream to load or refresh.");
                return;
            }

            const mediaInfo = new chrome.cast.media.MediaInfo(detectedStreamUrl, 'application/x-mpegurl');
            mediaInfo.customData = {
                headers: {
                    Referer: REFERER
                }
            };

            const request = new chrome.cast.media.LoadRequest(mediaInfo);
            session.loadMedia(request).then(() => {
                console.log("Casting stream:", detectedStreamUrl);
            }).catch(console.error);
        };

        document.body.appendChild(btn);
    }
})();