// ==UserScript==
// @name        Lazy Embedded Video
// @namespace   [email protected]
// @description Lazy load embedded videos from Youtube/Dailymotion/Vimeo/Rutube/Twitch/Coub/Rumble
// @version     4.3
// @include     *
// @icon        https://i.imgur.com/rf0mFDM.png
// @license     MIT
// @grant       GM.getValue
// @grant       GM.setValue
// @grant       GM_getValue
// @grant       GM_setValue
// @run-at      document-start
// ==/UserScript==
(async function() {
var a = document.createElement("A");
try      { a.href = top.location.href; }
catch(e) { a.href = document.referrer || location.href; }
if(a.hostname && /(youtube|dailymotion|vimeo|rutube|twitch|coub|rumble)\.[^.]+$/.test(a.hostname))
return;
var getValue = typeof(GM) != "undefined" ? GM.getValue : typeof(GM_getValue) != "undefined" ? GM_getValue :
function(name, value) { return localStorage.getItem(name) || value; };
var setValue = typeof(GM) != "undefined" ? GM.setValue : typeof(GM_setValue) != "undefined" ? GM_setValue :
function(name, value) { localStorage.setItem(name, value); };
var settings = JSON.parse(await getValue("zeusLEV", '[false,true,[]]'));
while(typeof(settings) == "string") settings = JSON.parse(settings);
if(settings[2].includes(location.hostname))
return;
var listener = false;
var createListener = function() {
if(listener) return;
listener = true;
window.addEventListener("message", async function(e) {
if(!e.data.startsWith("lazyVideo")) return;
var data = e.data.split(' ');
switch(data[1]) {
case "CSP"      : iframes[parseInt(data[2])].dataset.lazyVideo = 3; break;
case "play"     : iframes[parseInt(data[2])].removeAttribute("srcdoc");
iframes[parseInt(data[2])].src = data[3];         break;
case "settings" :
settings = JSON.parse(await getValue("zeusLEV", '[false,true,[]]'));
while(typeof(settings) == "string") settings = JSON.parse(settings);
switch(data[2]) {
case "autoplay"  : settings[0] = data[3] == 'true'; break;
case "flash"     : settings[1] = data[3] == 'true'; break;
case "reset"     : settings[2] = [];                break;
case "whitelist" :
observer.disconnect();
cancelAnimationFrame(animation);
if(!settings[2].includes(location.hostname))
settings[2].push(location.hostname);
for(var i = 0; i < iframes.length; i++)
iframes[i].removeAttribute("srcdoc");
break;
}
setValue("zeusLEV", JSON.stringify(settings));
break;
}
});
}
var html, iframes = [];
var createHtml = function(url, src, api, background_img) {
/(.*\/\/(?:[^.\/]+\.)?([^.\/]+)\.[^.\/]+)\//i.test(url);
var provider_url = RegExp.$1, provider_name = RegExp.$2, data_convert = "", button_color = "";
if(api) api += '&callback=jsonpCallback';
switch(provider_name) {
case "youtube" :
button_color  = "#c22";
data_convert += 'data = {'+
'thumbnail_url: (data.items[0].snippet.thumbnails.maxres || data.items[0].snippet.thumbnails.standard || '+
'data.items[0].snippet.thumbnails.high   || data.items[0].snippet.thumbnails.medium   || '+
'data.items[0].snippet.thumbnails.default).url,'+
'title:          data.items[0].snippet.title,'+
'author_url:     "https://www.youtube.com/channel/"+data.items[0].snippet.channelId,'+
'author_name:    data.items[0].snippet.channelTitle,'+
'duration:       data.items[0].contentDetails ? /PT(\\d+H)?(\\d+M)?(\\d+S)?/i.test(data.items[0].contentDetails.duration) && '+
'(parseInt(RegExp.$1||0)*3600+parseInt(RegExp.$2||0)*60+parseInt(RegExp.$3||0)) || "LIVE" : "PLAYLIST"'+
'};';
break;
case "dailymotion" :
button_color  = "#fd5";
data_convert += 'data.author_url  = data["owner.url"];'+
'data.author_name = data["owner.screenname"];'+
'if(!data.duration) data.duration = "LIVE";';
break;
case "vimeo" :
button_color  = "#5af";
data_convert += 'if(data.thumbnail_url) data.thumbnail_url = data.thumbnail_url.replace(/_\\d+x\\d+/i, "");';
break;
case "rutube" :
button_color  = "#444";
data_convert += 'if(data.thumbnail_url) data.thumbnail_url = data.thumbnail_url.replace(/\\?.+/i, "");';
break;
case "twitch" :
button_color  = "#548";
break;
case "coub" :
button_color  = "#04f";
data_convert += 'if(data.channel_url) data.author_url = data.channel_url;';
break;
case "rumble" :
button_color  = "#8c4";
break;
}
if(!html) html = [
'<!doctype html>'+
'<html>'+
'<head>'+
'<title>Lazy Embedded Video</title>'+
'<style>'+
'html { height:100%; } '+
'body { margin:0; height:100%; color:white; font:14px sans-serif; '+
'--thumbnail_url:', background_img, '; background:black var(--thumbnail_url) center/100% no-repeat; } '+
'a { color:inherit; font-weight:bold; text-decoration:none; } '+
'a:hover { text-decoration:underline; } '+
'#interface { position:absolute; width:100%; height:100%; overflow:hidden; opacity:0.9; '+
'-moz-user-select:none; -webkit-user-select:none; -ms-user-select:none; user-select:none; } '+
'#playButton { display:flex; height:100%; cursor:pointer; } '+
'#playButton > div { width:70px; height:70px; margin:auto; border-radius:50%; background-color:black; } '+
'#playButton:hover > div { background-color:', button_color, '; } '+
'#playButton > div > div { width:0; height:0; margin:20px 0 0 25px; border:solid transparent; '+
'border-width:14px 0px 14px 28px; border-left-color:white; } '+
'#infobar { position:absolute; top:0px; width:100%; height:32px; display:flex; '+
'box-sizing:border-box; background:black; border:0px solid grey; border-bottom-width:1px; } '+
'#author, #title, #duration { overflow:hidden; white-space:nowrap; margin:auto 8px; } '+
'#author { flex-shrink:0; max-width:30%; color:', button_color ,'; } '+
'#space { flex-grow:1; } '+
'#duration { flex-shrink:0; } '+
'#settingsButton { flex-basis:32px; flex-shrink:0; font:bold 20px sans-serif; text-align:center; cursor:pointer; } '+
'#settingsButton:hover { color:', button_color, '; } '+
'#settingsButton.active { background-color:', button_color, '; color:black; } '+
'#settingsPanel { position:absolute; right:0px; top:31px; max-height:100%; margin:0px; list-style:none; padding:8px; '+
'border:solid grey; border-width:0px 0px 1px 1px; background-color:', button_color ,'; color:black; cursor:default; visibility:hidden; } '+
'#settingsPanel.active { visibility:visible; } '+
'#settingsPanel label { display:inline-block; width:144px; vertical-align:top; } '+
'#settingsPanel button { width:100%; }'+
'</style>'+
'</head>'+
'<body>'+
'<div id=interface>'+
'<div id=playButton><div><div></div></div></div>'+
'<div id=infobar>'+
'<a id=author target=_blank onmouseenter="this.title = this.scrollWidth > this.clientWidth ? this.textContent : \'\';" href="', provider_url, '">', provider_name, '</a>'+
'<a id=title  target=_blank onmouseenter="this.title = this.scrollWidth > this.clientWidth ? this.textContent : \'\';" href="', url, '">', url, '</a>'+
'<div id=space></div>'+
'<span id=settingsButton>⚙</span>'+
'</div>'+
'<ul id=settingsPanel>'+
'<li><label>Allow autoplay:</label><input class=setting type=checkbox', '', '></li>'+
'<li><label>Legacy Flash support:</label><input class=setting type=checkbox', '', '></li>'+
'<li><button class=setting>Whitelist this site</button>'+
'<li><button class=setting>Clear whitelist</button>'+
'</ul>'+
'</div>'+
'<script>'+
'parent.postMessage("lazyVideo CSP ', iframes.length, '", "'+location.href+'");'+
'document.getElementById("playButton").onclick = function() {'+
'parent.postMessage("lazyVideo play ', iframes.length, ' ', src, '", "'+location.href+'");'+
'};'+
'var settingsButton = document.getElementById("settingsButton");'+
'var settingsPanel  = document.getElementById("settingsPanel");'+
'settingsButton.onclick = function() {'+
'settingsButton.classList.toggle("active");'+
'settingsPanel.classList.toggle("active");'+
'};'+
'[].slice.call(settingsPanel.getElementsByClassName("setting")).forEach(function(e, i) {'+
'switch(i) {'+
'case 0: e.onchange = function() { parent.postMessage("lazyVideo settings autoplay "+e.checked, "'+location.href+'"); }; break;'+
'case 1: e.onchange = function() { parent.postMessage("lazyVideo settings flash "+e.checked   , "'+location.href+'"); }; break;'+
'case 2: e.onclick  = function() { parent.postMessage("lazyVideo settings whitelist"          , "'+location.href+'"); }; break;'+
'case 3: e.onclick  = function() { parent.postMessage("lazyVideo settings reset"              , "'+location.href+'"); }; break;'+
'}'+
'});'+
'function removeProtocol(url) { return url.replace(/^[a-z]+:/i, ""); }'+
'function jsonpCallback(data) {',
data_convert,
'if(data.thumbnail_url) document.body.style.setProperty("--thumbnail_url", "url("+data.thumbnail_url+")");'+
'if(data.thumbnail_url) document.body.style.setProperty("--darkreader-bgimg--thumbnail_url", "url("+data.thumbnail_url+")");'+
'if(data.url)           document.getElementById("title").href         = removeProtocol(data.url);'+
'if(data.title)         document.getElementById("title").textContent  = data.title;'+
'if(data.author_url)    document.getElementById("author").href        = removeProtocol(data.author_url);'+
'if(data.author_name)   document.getElementById("author").textContent = data.author_name;'+
'if(data.duration)      document.getElementById("space").insertAdjacentHTML("afterend",'+
'"<div id=duration>"+(Number(data.duration) ? new Date(data.duration*1000).toISOString().substr(11,8) : data.duration)+"</div>");'+
'}'+
'</script>'+
'<script id=api src="', api, '"></script>'+
'</body>'+
'</html>'
];
html[ 1] = background_img || 'none';
html[ 3] = button_color;
html[ 5] = button_color;
html[ 7] = button_color;
html[ 9] = button_color;
html[11] = button_color;
html[13] = provider_url;
html[15] = provider_name;
html[17] = url;
html[19] = url;
html[21] = settings[0] ? ' checked' : '';
html[23] = settings[1] ? ' checked' : '';
html[25] = iframes.length;
html[27] = iframes.length;
html[29] = src;
html[31] = data_convert;
html[33] = api;
};
var createOembed  = function(api, url) { return api+encodeURIComponent(url); };
// var createNOembed = function(api, url) { return createOembed("https://noembed.com/embed?url=", url); };
var createJOembed = function(api, url) { return createOembed("https://json2jsonp.com/?url=", createOembed(api, url)); };
var createLazyVideo = function(elem) {
var id, args = "", url, src = a.href = elem.src || elem.data || elem.dataset.src;
if(!a.hostname || elem.dataset.lazyVideo) return;
elem.dataset.lazyVideo = 1;
switch(a.hostname.match(/([^.]+)\.[^.]+$/)[1]) {
case "youtube" :
case "youtube-nocookie" :
if(/\/(?:p\/|embed\/videoseries)([^&]*)/i.test(a.pathname)) {
id = RegExp.$1 || (/[?&]list=([^&]+)/i.test(a.search) && RegExp.$1);
if(!id || (settings[0] && a.search.includes("autoplay=1"))) return;
if(/[?&](v=[^&]+)/i.test(a.search))     args += "&"+RegExp.$1;
if(/[?&](index=[^&]+)/i.test(a.search)) args += "&"+RegExp.$1;
if(/[?&](start=[^&]+)/i.test(a.search)) args += "&"+RegExp.$1;
createHtml(
url = /[?&]v=([^&]+)/i.test(a.search) ? "https://www.youtube.com/watch?list="+id+args : "https://www.youtube.com/playlist?list="+id,
src = "https://www.youtube-nocookie.com/embed/videoseries?autoplay=1&list="+id+args,
"https://www.googleapis.com/youtube/v3/playlists?part=snippet&fields=items/snippet(channelId,title,thumbnails,channelTitle)&key=AIzaSyBJ-o6n51GQ6jEqjvEN0bI1KdX5CHZQy5E&id="+id,
/[?&]v=([^&]+)/i.test(a.search) ? "url(https://i.ytimg.com/vi/"+RegExp.$1+"/hqdefault.jpg)" : null
);
} else {
if(/\/(?:v|embed)\/([^&]*)/i.test(a.pathname)) id = RegExp.$1 || (/[?&]v=([^&]+)/i.test(a.search) && RegExp.$1);
if(!id || (settings[0] && a.search.includes("autoplay=1"))) return;
if(/[?&](start=[^&]+)/i.test(a.search)) args += "&"+RegExp.$1;
createHtml(
url = "https://www.youtube.com/watch?v="+id+args,
src = "https://www.youtube-nocookie.com/embed/"+id+"?autoplay=1"+args,
// createNOembed("https://www.youtube.com/oembed?format=json&url=", url),
"https://www.googleapis.com/youtube/v3/videos?part=snippet,contentDetails&fields=items(snippet(channelId,title,thumbnails,channelTitle),contentDetails/duration)&key=AIzaSyBJ-o6n51GQ6jEqjvEN0bI1KdX5CHZQy5E&id="+id,
"url(https://i.ytimg.com/vi/"+id+"/hqdefault.jpg)"
);
}
break;
case "dailymotion" :
if(/\/(?:swf|embed)\/(?:video\/)?([^&_]+)/i.test(a.pathname)) id = RegExp.$1;
if(!id || (settings[0] && a.search.includes("autoplay=1"))) return;
// if(/[?&](mute=[^&]+)/i.test(a.search))  args += "&"+RegExp.$1;
if(/[?&](start=[^&]+)/i.test(a.search)) args += "&"+RegExp.$1;
createHtml(
url = "https://www.dailymotion.com/video/"+id+"?"+args,
src = "https://www.dailymotion.com/embed/video/"+id+"?autoplay=1"+args,
// createOembed("https://www.dailymotion.com/services/oembed?format=json&url=", url),
"https://api.dailymotion.com/video/"+id+"?fields=owner.screenname,owner.url,title,url,duration,thumbnail_url",
"url(https://www.dailymotion.com/thumbnail/video/"+id+")"
);
break;
case "vimeo" :
if(/\/(?:moogaloop\.swf|video\/)([^&]*)/i.test(a.pathname))
id = RegExp.$1 || (/[?&]clip_id=([^&]+)/i.test(a.search) && RegExp.$1);
if(!id || (settings[0] && a.search.includes("autoplay=1"))) return;
if(/[?&](loop=[^&]+)/i.test(a.search))  args += "&"+RegExp.$1;
if(/(\#t=[\dhms]+)/i.test(a.hash))      args += RegExp.$1;
createHtml(
url = "https://vimeo.com/"+id+"?"+args,
src = "https://player.vimeo.com/video/"+id+"?autoplay=1"+args,
createOembed("https://vimeo.com/api/oembed.json?url=", url)
);
break;
case "rutube" :
if(/(?:\/play)?\/embed\/([^&.\/]+)/i.test(a.pathname)) id = RegExp.$1;
else if(/[?&]pl_video=([^&]+)/i.test(a.search))        id = RegExp.$1;
if(!id || (settings[0] && a.search.includes("autoStart=1"))) return;
if(/[?&](bmstart=[^&]+)/i.test(a.search)) args += "&"+RegExp.$1;
createHtml(
url = "https://rutube.ru/"+(isNaN(id) ? "video/"+id+"/" : "tracks/"+id+".html"),
src = "https://rutube.ru/"+(a.pathname.includes("/embed/") ? "play/embed/"+id+"?autoStart=1"+args : "pl/?pl_video="+id),
createJOembed("https://rutube.ru/api/oembed/?format=json&url=", url)
);
break;
case "twitch" :
if(/(channel|video|clip)=([^&]+)/i.test(a.search))       {args = RegExp.$1; id = RegExp.$2;}
else if(/(stream=.+&channelId)=([^&]+)/i.test(a.search)) {args = RegExp.$1; id = RegExp.$2;}
else if(/\/(.+)\/embed/i.test(a.pathname))               {args = "channel"; id = RegExp.$1;}
if(!id || (settings[0] && a.search.includes("autoplay=true"))) return;
createHtml(
url = "https://"+(args=="clip" ? "clips" : "www")+".twitch.tv/"+(args=="video" ? "videos/" : "")+id,
src = a.href.split('?')[0]+"?autoplay=true&"+args+"="+id+"&parent="+location.hostname,
null,
"url(https://static-cdn.jtvnw.net/previews-ttv/live_user_"+(args=="channel" ? id : 0)+"-0x0.jpg)"
);
break;
case "coub" :
if(/\/embed\/([^&]+)/i.test(a.pathname)) id = RegExp.$1;
if(!id || (settings[0] && a.search.includes("autostart=true"))) return;
createHtml(
url = "https://coub.com/view/"+id,
src = "https://coub.com/embed/"+id+"?startWithHD=true&autostart=true",
createJOembed("https://coub.com/api/oembed.json?url=", url)
);
break;
case "rumble" :
if(/\/embed\/([^\/]+)/i.test(a.pathname)) id = RegExp.$1;
if(!id || (settings[0] && a.search.includes("autoplay=2"))) return;
if(/[?&](start=[^&]+)/i.test(a.search)) args += "&"+RegExp.$1;
createHtml(
url = "https://rumble.com/"+id+"-.html",
src = "https://rumble.com/embed/"+id+"/?autoplay=2"+args,
createJOembed("https://rumble.com/api/Media/oembed.json?url=", src)
);
break;
default :
return;
}
if(elem.tagName != "IFRAME") {
if(elem.parentNode.tagName == "OBJECT")
elem = elem.parentNode;
var iframe = document.createElement("IFRAME");
iframe.src           = src;
iframe.id            = elem.id;
iframe.name          = elem.name;
iframe.className     = elem.className;
iframe.style.cssText = elem.style.cssText;
iframe.width         = elem.width;
iframe.height        = elem.height;
iframe.frameBorder   = elem.border;
iframe.align         = elem.align;
elem.parentNode.replaceChild(iframe, elem);
elem = iframe;
}
createListener();
elem.dataset.lazyVideo = 2;
elem.allowFullscreen   = true;
elem.srcdoc            = html.join("");
iframes.push(elem);
setTimeout(function() {
if(elem.dataset.lazyVideo != 3)
elem.removeAttribute("srcdoc");
}, 15000);
};
var observer, animation;
var update = function() {
if(!document.body) {
animation = requestAnimationFrame(update);
} else if(!observer) {
observer = new MutationObserver(function() { if(!animation) animation = requestAnimationFrame(update); });
observer.observe(document.body, {childList: true, attributes: false, characterData: false, subtree: true});
animation = requestAnimationFrame(update);
} else {
var nodes = document.querySelectorAll(settings[1] ? "IFRAME, EMBED, OBJECT" : "IFRAME");
for(var i = 0; i < nodes.length; i++)
createLazyVideo(nodes[i]);
animation = null;
}
};
update();
})();