/*
  Copyright (C) 2010 - 2017 Sebastian Luncan
  Copyright (C) 2017 Arun Isaac <arunisaac@systemreboot.net>

  This program is free software: you can redistribute it and/or modify
  it under the terms of the GNU 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 General Public License for more details.

  You should have received a copy of the GNU General Public License
  along with this program. If not, see <http://www.gnu.org/licenses/>.

  Website: http://isebaro.com/viewtube
  Contact: http://isebaro.com/contact
*/

// ==========Variables========== //

(function() {
    // Userscript
    var userscript = 'ViewTube';

    // Page
    var page = {win: window, doc: document, body: document.body, url: window.location.href, title: document.title, site: window.location.hostname.match(/([^.]+)\.[^.]+$/)[1]};

    // Player
    var player = {};
    var option = {'definition': 'HD', 'container': 'MP4', 'direct': false};
    var mimetypes = {
	'MPEG': 'video/mpeg',
	'MP4': 'video/mp4',
	'WebM': 'video/webm',
	'FLV': 'video/x-flv',
	'MOV': 'video/quicktime',
	'M4V': 'video/x-m4v',
	'AVI': 'video/x-msvideo',
	'3GP': 'video/3gpp',
    };
    var sources = {};

    // Links
    var website = 'https://git.systemreboot.net/youtube-noscript-shim/about';
    var contact = 'mailto:arunisaac@systemreboot.net';

    // ==========Functions========== //

    function createElement (type, attributes, ...children) {
	var element = document.createElement(type);
	for (var key in attributes) {
	    if (key == 'innerHTML') element.innerHTML = attributes[key];
	    else element.setAttribute(key, attributes[key]);
	}
	for (var child in children)
	    element.appendChild(child);
	return element;
    }

    function createVideoElement (attributes, ...children) {
	return createElement("video", Object.assign({controls: "controls", autoplay: "autoplay", volume: 0.8}, attributes));
    }

    function createMyPlayer() {
	/* Get My Options */
	function onGot(item) {
	    Object.assign(option, item);

	    /* The Panel */
	    player['playerPanel'] = createElement('div');
	    player['playerWindow'].appendChild(player['playerPanel']);

	    /* Panel Video Menu */
	    player["videoMenu"] = createElement("select", {title: "Select the video format for playback"});
	    player["videoMenu"].addEventListener('change', function() {
		player['videoPlay'] = this.value;
		playMyVideo();
	    }, false);
	    player['playerPanel'].appendChild(player['videoMenu']);
	    for (var videoCode in player['videoList']) {
		player["videoItem"] = createElement("option", {value: videoCode, innerHTML: videoCode});
		if (videoCode.indexOf('Video') != -1 || videoCode.indexOf('Audio') != -1)
		    player["videoItem"].classList.add("audio-video-only");
		if (player['videoList'][videoCode] == 'DASH')
		    player["videoItem"].classList.add("dash");
		player['videoMenu'].appendChild(player['videoItem']);
		if (videoCode == 'Direct Video Link')
		    player["videoItem"].classList.add("direct-video-link");
	    }

	    /* The Content */
	    player['playerContent'] = createElement('div');
	    player['playerWindow'].appendChild(player['playerContent']);

	    /* Play My Video */
	    playMyVideo();
	}
	promise = browser.storage.local.get(Object.keys(option));
	promise.then(onGot, onGot);
    }

    function playDASHwithHTML5() {
	if (player['videoPlay'].indexOf('MP4') != -1) {
	    player["contentVideo"] = createVideoElement({src: player["videoList"][player["videoPlay"].replace(/MP4/, "Video MP4")]});
	    if (player['videoList']['High Bitrate Audio Opus'])
		player["contentAudio"] = createVideoElement({src: player["videoList"]["High Bitrate Audio Opus"]});
	    else if (player['videoList']['Medium Bitrate Audio Opus'])
		player['contentAudio'] = createVideoElement({src: player['videoList']['Medium Bitrate Audio Opus']});
	    else player['contentAudio'] = createVideoElement({src: player['videoList']['Medium Bitrate Audio MP4']});
	}
	else {
	    player["contentVideo"] = createVideoElement({src: player["videoList"][player["videoPlay"].replace(/WebM/, "Video WebM")]});
	    if (player['videoList']['High Bitrate Audio Opus'])
		player["contentAudio"] = createVideoElement({src: player["videoList"]["High Bitrate Audio Opus"]});
	    else if (player['videoList']['Medium Bitrate Audio Opus'])
		player["contentAudio"] = createVideoElement({src: player["videoList"]["Medium Bitrate Audio Opus"]});
	    else player["contentAudio"] = createVideoElement({src: player["videoList"]["Medium Bitrate Audio WebM"]});
	}
	player['contentAudio'].pause();
	player['contentVideo'].addEventListener('play', function() {
	    player['contentAudio'].play();
	}, false);
	player['contentVideo'].addEventListener('pause', function() {
	    player['contentAudio'].pause();
	}, false);
	player['contentVideo'].addEventListener('ended', function() {
	    player['contentVideo'].pause();
	    player['contentAudio'].pause();
	}, false);
	player['contentVideo'].addEventListener('timeupdate', function() {
	    if (player['contentAudio'].paused && !player['contentVideo'].paused) {
		player['contentAudio'].play();
	    }
	    if (Math.abs(player['contentVideo'].currentTime - player['contentAudio'].currentTime) >= 0.30) {
		player['contentAudio'].currentTime = player['contentVideo'].currentTime;
	    }
	}, false);
	player["contentAudio"].classList.add("hide");
	player['contentVideo'].appendChild(player['contentAudio']);
    }

    function playMyVideo() {
	while (player['playerContent'].hasChildNodes())
	    player['playerContent'].removeChild(player['playerContent'].firstChild);
	if (player['videoList'][player['videoPlay']] == 'DASH')
	    playDASHwithHTML5();
	else
	    player["contentVideo"] = createVideoElement({src: player["videoList"][player["videoPlay"]], poster: player["videoThumb"]});
	player['playerContent'].appendChild(player['contentVideo']);
    }

    function cleanMyContent(content, unesc) {
	var myNewContent = content;
	if (unesc) myNewContent = unescape(myNewContent);
	myNewContent = myNewContent.replace(/\\u0025/g,'%');
	myNewContent = myNewContent.replace(/\\u0026/g,'&');
	myNewContent = myNewContent.replace(/\\/g,'');
	myNewContent = myNewContent.replace(/\n/g,'');
	return myNewContent;
    }

    function getMyContent(url, pattern, clean) {
	var myPageContent, myVideosParse, myVideosContent;
	var getMethod = (url != page.url) ? 'XHR' : 'DOM';
	if (!sources[url]) sources[url] = {};
	if (getMethod == 'DOM') {
	    if (!sources[url]['DOM'])
		sources[url]['DOM'] = document.querySelector("html").innerHTML;
	    myPageContent = sources[url]['DOM'];
	    if (clean) myPageContent = cleanMyContent(myPageContent, true);
	    myVideosParse = myPageContent.match(pattern);
	    myVideosContent = (myVideosParse) ? myVideosParse[1] : null;
	    if (myVideosContent) return myVideosContent;
	    else getMethod = 'XHR';
	}
	if (getMethod == 'XHR') {
	    if (!sources[url]['XHR']) sources[url]['XHR'] = {};
	    if ((pattern == 'XML' && !sources[url]['XHR']['XML']) || (pattern != 'XML' && !sources[url]['XHR']['TEXT'])) {
		var xmlHTTP = new XMLHttpRequest();
		xmlHTTP.open('GET', url, false);
		xmlHTTP.send();
		if (pattern == 'XML') sources[url]['XHR']['XML'] = xmlHTTP.responseXML;
		else sources[url]['XHR']['TEXT'] = xmlHTTP.responseText;
	    }
	    if (pattern == 'XML') {
		myVideosContent = sources[url]['XHR']['XML'];
	    }
	    else if (pattern == 'TEXT') {
		myVideosContent = sources[url]['XHR']['TEXT'];
	    }
	    else {
		myPageContent = sources[url]['XHR']['TEXT'];
		if (clean) myPageContent = cleanMyContent(myPageContent, true);
		myVideosParse = myPageContent.match(pattern);
		myVideosContent = (myVideosParse) ? myVideosParse[1] : null;
	    }
	    return myVideosContent;
	}
    }

    function setMyOptions(key, value) {
	var pair = {};
	pair[key] = value;
	browser.storage.local.set(pair);
    }

    // =====YouTube===== //

    // Add stylesheet
    document.head.appendChild(createElement("link", {rel: "stylesheet", type: "text/css", href: browser.extension.getURL("viewtube.css")}));

    /* Redirect Categories */
    if (page.url.indexOf('gaming.youtube.com') != -1) {
	page.win.location.href = page.url.replace('gaming', 'www');
    }

    /* Video Availability */
    var ytVideoUnavailable = document.querySelector("#player-unavailable");
    if (ytVideoUnavailable) {
	if (ytVideoUnavailable.className.indexOf('hid') == -1) {
	    var ytAgeGateContent = document.querySelector("#watch7-player-age-gate-content");
	    if (!ytAgeGateContent) return;
	    else {
		if(ytAgeGateContent.indexOf('feature=private_video') != -1) return;
	    }
	}
    }

    /* Decrypt Signature */
    var ytScriptSrc;
    function ytDecryptSignature(s) {return null;}
    function ytDecryptFunction() {
	var ytSignFuncName, ytSignFuncBody, ytSwapFuncName, ytSwapFuncBody, ytFuncMatch;
	ytScriptSrc = ytScriptSrc.replace(/(\r\n|\n|\r)/gm, '');
	ytSignFuncName = ytScriptSrc.match(/"signature"\s*,\s*([^\)]*?)\(/);
	ytSignFuncName = (ytSignFuncName) ? ytSignFuncName[1] : null;
	if (ytSignFuncName) {
	    ytFuncMatch = ytSignFuncName.replace(/\$/, '\\$') + '\\s*=\\s*function\\s*' + '\\s*\\(\\w+\\)\\s*\\{(.*?)\\}';
	    ytSignFuncBody = ytScriptSrc.match(ytFuncMatch);
	    ytSignFuncBody = (ytSignFuncBody) ? ytSignFuncBody[1] : null;
	    if (ytSignFuncBody) {
		ytSwapFuncName = ytSignFuncBody.match(/((\$|_|\w)+)\.(\$|_|\w)+\(\w,[0-9]+\)/);
		ytSwapFuncName = (ytSwapFuncName) ? ytSwapFuncName[1] : null;
		if (ytSwapFuncName) {
		    ytFuncMatch = 'var\\s+' + ytSwapFuncName.replace(/\$/, '\\$') + '=\\s*\\{(.*?)\\};';
		    ytSwapFuncBody = ytScriptSrc.match(ytFuncMatch);
		    ytSwapFuncBody = (ytSwapFuncBody) ? ytSwapFuncBody[1] : null;
		}
		if (ytSwapFuncBody) ytSignFuncBody = 'var ' + ytSwapFuncName + '={' + ytSwapFuncBody + '};' + ytSignFuncBody;
		ytSignFuncBody = 'try {' + ytSignFuncBody + '} catch(e) {return null}';
		ytDecryptSignature = new Function('a', ytSignFuncBody);
	    }
	}
    }

    /* Get Player Window */
    var ytPlayerWindow = document.querySelector("#player");
    if (!ytPlayerWindow) console.log("Couldn't get the player element.");
    else {
	/* Get Video Thumbnail */
	var ytVideoThumb = getMyContent(page.url, 'link\\s+itemprop="thumbnailUrl"\\s+href="(.*?)"', false);
	if (!ytVideoThumb) ytVideoThumb = getMyContent(page.url, 'meta\\s+property="og:image"\\s+content="(.*?)"', false);
	if (!ytVideoThumb) {
	    var ytVideoID = page.url.match(/(\?|&)v=(.*?)(&|$)/);
	    if (ytVideoID) ytVideoThumb = 'https://img.youtube.com/vi/' + ytVideoID[2] + '/0.jpg';
	}

	/* Get Videos Content */
	var ytVideosEncodedFmts, ytVideosAdaptiveFmts, ytVideosContent, ytHLSVideos, ytHLSContent;
	ytVideosEncodedFmts = getMyContent(page.url, '"url_encoded_fmt_stream_map":\\s*"(.*?)"', false);
	if (!ytVideosEncodedFmts) ytVideosEncodedFmts = getMyContent(page.url, '\\\\"url_encoded_fmt_stream_map\\\\":\\s*\\\\"(.*?)\\\\"', false);
	ytVideosAdaptiveFmts = getMyContent(page.url, '"adaptive_fmts":\\s*"(.*?)"', false);
	if (!ytVideosAdaptiveFmts) ytVideosAdaptiveFmts = getMyContent(page.url, '\\\\"adaptive_fmts\\\\":\\s*\\\\"(.*?)\\\\"', false);
	if (ytVideosEncodedFmts) {
	    ytVideosContent = ytVideosEncodedFmts;
	}
	else {
	    ytHLSVideos = getMyContent(page.url, '"hlsvp":\\s*"(.*?)"', false);
	    if (!ytHLSVideos) ytHLSVideos = getMyContent(page.url, '\\\\"hlsvp\\\\":\\s*\\\\"(.*?)\\\\"', false);
	    if (ytHLSVideos) {
		ytHLSVideos = cleanMyContent(ytHLSVideos, false);
		if (ytHLSVideos.indexOf('keepalive/yes/') != -1) ytHLSVideos = ytHLSVideos.replace('keepalive/yes/', '');
	    }
	    else {
		var ytVideoID = page.url.match(/(\?|&)v=(.*?)(&|$)/);
		ytVideoID = (ytVideoID) ? ytVideoID[2] : null;
		if (ytVideoID) {
		    var ytVideoSts = getMyContent(page.url.replace(/watch.*?v=/, 'embed/').replace(/&.*$/, ''), '"sts"\\s*:\\s*(\\d+)', false);
		    var ytVideosInfoURL = page.win.location.protocol + '//' + page.win.location.hostname + '/get_video_info?video_id=' + ytVideoID + '&eurl=https://youtube.googleapis.com/v/' + ytVideoID + '&sts=' + ytVideoSts;
		    var ytVideosInfo = getMyContent(ytVideosInfoURL, 'TEXT', false);
		    if (ytVideosInfo) {
			ytVideosEncodedFmts = ytVideosInfo.match(/url_encoded_fmt_stream_map=(.*?)&/);
			ytVideosEncodedFmts = (ytVideosEncodedFmts) ? ytVideosEncodedFmts[1] : null;
			if (ytVideosEncodedFmts) {
			    ytVideosEncodedFmts = cleanMyContent(ytVideosEncodedFmts, true);
			    ytVideosContent = ytVideosEncodedFmts;
			}
			if (!ytVideosAdaptiveFmts) {
			    ytVideosAdaptiveFmts = ytVideosInfo.match(/adaptive_fmts=(.*?)&/);
			    ytVideosAdaptiveFmts = (ytVideosAdaptiveFmts) ? ytVideosAdaptiveFmts[1] : null;
			    if (ytVideosAdaptiveFmts) ytVideosAdaptiveFmts = cleanMyContent(ytVideosAdaptiveFmts, true);
			}
		    }
		}
	    }
	}
	if (ytVideosAdaptiveFmts && !ytHLSVideos) {
	    if (ytVideosContent) ytVideosContent += ',' + ytVideosAdaptiveFmts;
	    else ytVideosContent = ytVideosAdaptiveFmts;
	}

	function removeElements (selector) {
	    document.querySelectorAll(selector).forEach(function (element) { element.remove(); });
	}

	/* Remove Player Window */
	removeElements("#placeholder-player");

	/* Remove Sidebar Ads */
	removeElements("#watch7-sidebar-ads");

	/* Playlist */
	var ytPlaylist = document.querySelector("#player-playlist");
	if (ytPlaylist) {
	    var ytPlaceholderPlaylist = document.querySelector("#placeholder-playlist");
	    if (ytPlaceholderPlaylist) ytPlaceholderPlaylist.appendChild(ytPlaylist);
	}

	/* My Player Window */
	var myPlayerWindow = document.querySelector("#player-api");

	/* Create Player */
	var ytDefaultVideo = 'Low Definition MP4';
	function ytPlayer() {
	    player = {
		'playerSocket': ytPlayerWindow,
		'playerWindow': myPlayerWindow,
		'videoList': ytVideoList,
		'videoPlay': ytDefaultVideo,
		'videoThumb': ytVideoThumb
	    };
	    option['definitions'] = ['Ultra High Definition', 'Full High Definition', 'High Definition', 'Standard Definition', 'Low Definition', 'Very Low Definition'];
	    option['containers'] = ['MP4', 'WebM', 'FLV', '3GP', 'Any'];
	    createMyPlayer();
	}

	/* Parse Videos */
	function ytVideos() {
	    var ytVideoFormats = {
		'5': 'Very Low Definition FLV',
		'17': 'Very Low Definition 3GP',
		'18': 'Low Definition MP4',
		'22': 'High Definition MP4',
		'34': 'Low Definition FLV',
		'35': 'Standard Definition FLV',
		'36': 'Low Definition 3GP',
		'37': 'Full High Definition MP4',
		'38': 'Ultra High Definition MP4',
		'43': 'Low Definition WebM',
		'44': 'Standard Definition WebM',
		'45': 'High Definition WebM',
		'46': 'Full High Definition WebM',
		'82': 'Low Definition 3D MP4',
		'83': 'Standard Definition 3D MP4',
		'84': 'High Definition 3D MP4',
		'85': 'Full High Definition 3D MP4',
		'100': 'Low Definition 3D WebM',
		'101': 'Standard Definition 3D WebM',
		'102': 'High Definition 3D WebM',
		'135': 'Standard Definition Video MP4',
		'136': 'High Definition Video MP4',
		'137': 'Full High Definition Video MP4',
		'138': 'Ultra High Definition Video MP4',
		'139': 'Low Bitrate Audio MP4',
		'140': 'Medium Bitrate Audio MP4',
		'141': 'High Bitrate Audio MP4',
		'171': 'Medium Bitrate Audio WebM',
		'172': 'High Bitrate Audio WebM',
		'244': 'Standard Definition Video WebM',
		'247': 'High Definition Video WebM',
		'248': 'Full High Definition Video WebM',
		'249': 'Low Bitrate Audio Opus',
		'250': 'Medium Bitrate Audio Opus',
		'251': 'High Bitrate Audio Opus',
		'266': 'Ultra High Definition Video MP4',
		'272': 'Ultra High Definition Video WebM',
		'298': 'High Definition Video MP4',
		'299': 'Full High Definition Video MP4',
		'302': 'High Definition Video WebM',
		'303': 'Full High Definition Video WebM',
		'313': 'Ultra High Definition Video WebM'
	    };
	    var ytVideoFound = false;
	    var ytVideos = ytVideosContent.split(',');
	    var ytVideoParse, ytVideoCodeParse, ytVideoCode, myVideoCode, ytVideo;
	    for (var i = 0; i < ytVideos.length; i++) {
		if (!ytVideos[i].match(/^url/)) {
		    ytVideoParse = ytVideos[i].match(/(.*)(url=.*$)/);
		    if (ytVideoParse) ytVideos[i] = ytVideoParse[2] + '&' + ytVideoParse[1];
		}
		ytVideoCodeParse = ytVideos[i].match(/itag=(\d{1,3})/);
		ytVideoCode = (ytVideoCodeParse) ? ytVideoCodeParse[1] : null;
		if (ytVideoCode) {
		    myVideoCode = ytVideoFormats[ytVideoCode];
		    if (myVideoCode) {
			ytVideo = cleanMyContent(ytVideos[i], true);
			ytVideo = ytVideo.replace(/url=/, '').replace(/&$/, '');
			if (ytVideo.match(/itag=/) && ytVideo.match(/itag=/g).length > 1) {
			    if (ytVideo.match(/itag=\d{1,3}&/)) ytVideo = ytVideo.replace(/itag=\d{1,3}&/, '');
			    else if (ytVideo.match(/&itag=\d{1,3}/)) ytVideo = ytVideo.replace(/&itag=\d{1,3}/, '');
			}
			if (ytVideo.match(/clen=/) && ytVideo.match(/clen=/g).length > 1) {
			    if (ytVideo.match(/clen=\d+&/)) ytVideo = ytVideo.replace(/clen=\d+&/, '');
			    else if (ytVideo.match(/&clen=\d+/)) ytVideo = ytVideo.replace(/&clen=\d+/, '');
			}
			if (ytVideo.match(/lmt=/) && ytVideo.match(/lmt=/g).length > 1) {
			    if (ytVideo.match(/lmt=\d+&/)) ytVideo = ytVideo.replace(/lmt=\d+&/, '');
			    else if (ytVideo.match(/&lmt=\d+/)) ytVideo = ytVideo.replace(/&lmt=\d+/, '');
			}
			if (ytVideo.match(/type=(video|audio).*?&/)) ytVideo = ytVideo.replace(/type=(video|audio).*?&/, '');
			else ytVideo = ytVideo.replace(/&type=(video|audio).*$/, '');
			if (ytVideo.match(/xtags=[^%=]*&/)) ytVideo = ytVideo.replace(/xtags=[^%=]*?&/, '');
			else if (ytVideo.match(/&xtags=[^%=]*$/)) ytVideo = ytVideo.replace(/&xtags=[^%=]*$/, '');
			if (ytVideo.match(/&sig=/)) ytVideo = ytVideo.replace(/&sig=/, '&signature=');
			else if (ytVideo.match(/&s=/)) {
			    var ytSig = ytVideo.match(/&s=(.*?)(&|$)/);
			    if (ytSig) {
				var s = ytSig[1];
				s = ytDecryptSignature(s);
				if (s) ytVideo = ytVideo.replace(/&s=.*?(&|$)/, '&signature=' + s + '$1');
				else ytVideo = '';
			    }
			    else ytVideo = '';
			}
			ytVideo = cleanMyContent(ytVideo, true);
			if (ytVideo.indexOf('ratebypass') == -1) ytVideo += '&ratebypass=yes';
			if (ytVideo && ytVideo.indexOf('http') == 0) {
			    if (!ytVideoFound) ytVideoFound = true;
			    ytVideoList[myVideoCode] = ytVideo;
			}
		    }
		}
	    }

	    if (ytVideoFound) {
		/* DASH */
		if (!ytVideoList['Standard Definition MP4'] && ytVideoList['Standard Definition Video MP4']) ytVideoList['Standard Definition MP4'] = 'DASH';
		if (!ytVideoList['High Definition MP4'] && ytVideoList['High Definition Video MP4']) ytVideoList['High Definition MP4'] = 'DASH';
		if (!ytVideoList['Full High Definition MP4'] && ytVideoList['Full High Definition Video MP4']) ytVideoList['Full High Definition MP4'] = 'DASH';
		if (!ytVideoList['Ultra High Definition MP4'] && ytVideoList['Ultra High Definition Video MP4']) ytVideoList['Ultra High Definition MP4'] = 'DASH';
		if (!ytVideoList['Standard Definition WebM'] && ytVideoList['Standard Definition Video WebM']) ytVideoList['Standard Definition WebM'] = 'DASH';
		if (!ytVideoList['High Definition WebM'] && ytVideoList['High Definition Video WebM']) ytVideoList['High Definition WebM'] = 'DASH';
		if (!ytVideoList['Full High Definition WebM'] && ytVideoList['Full High Definition Video WebM']) ytVideoList['Full High Definition WebM'] = 'DASH';
		if (!ytVideoList['Ultra High Definition WebM'] && ytVideoList['Ultra High Definition Video WebM']) ytVideoList['Ultra High Definition WebM'] = 'DASH';

		/* DVL */
		ytVideoList['Direct Video Link'] = page.url;

		ytPlayer();
	    }
	    else {
		if (ytVideosContent.indexOf("conn=rtmp") != -1)
		    console.log("This video uses the RTMP protocol and is not supported.");
		else console.log("Couldn't get any video.");
	    }
	}

	/* Parse HLS */
	function ytHLS() {
	    var ytHLSFormats = {
		'92': 'Very Low Definition MP4',
		'93': 'Low Definition MP4',
		'94': 'Standard Definition MP4',
		'95': 'High Definition MP4',
		'96': 'Full High Definition MP4'
	    };
	    ytVideoList["Any Definition MP4"] = ytHLSVideos;
	    if (ytHLSContent) {
		var ytHLSVideo, ytVideoCodeParse, ytVideoCode, myVideoCode;
		var ytHLSMatcher = new RegExp('(http.*?m3u8)', 'g');
		ytHLSVideos = ytHLSContent.match(ytHLSMatcher);
		if (ytHLSVideos) {
		    for (var i = 0; i < ytHLSVideos.length; i++) {
			ytHLSVideo = ytHLSVideos[i];
			ytVideoCodeParse = ytHLSVideo.match(/\/itag\/(\d{1,3})\//);
			ytVideoCode = (ytVideoCodeParse) ? ytVideoCodeParse[1] : null;
			if (ytVideoCode) {
			    myVideoCode = ytHLSFormats[ytVideoCode];
			    if (myVideoCode && ytHLSVideo) {
				ytVideoList[myVideoCode] = ytHLSVideo;
			    }
			}
		    }
		}
	    }

	    /* DVL */
	    ytVideoList['Direct Video Link'] = page.url;

	    ytDefaultVideo = 'Any Definition MP4';
	    ytPlayer();
	}

	/* Get Videos */
	var ytVideoList = {};
	if (ytVideosContent) {
	    if (ytVideosContent.match(/&s=/) || ytVideosContent.match(/,s=/) || ytVideosContent.match(/u0026s=/)) {
		var ytScriptURL = getMyContent(page.url, '"js":\\s*"(.*?)"', true);
		if (!ytScriptURL) ytScriptURL = getMyContent(page.url.replace(/watch.*?v=/, 'embed/').replace(/&.*$/, ''), '"js":\\s*"(.*?)"', true);
		if (ytScriptURL) {
		    ytScriptURL = page.win.location.protocol + ytScriptURL;
		    try {
			ytScriptSrc = getMyContent(ytScriptURL, 'TEXT', false);
			if (ytScriptSrc) ytDecryptFunction();
			ytVideos();
		    }
		    catch(e) {
			try {
			    var oReq = new XMLHttpRequest();
			    oReq.open("GET", ytScriptURL);
			    oReq.onload = function(response) {
				if (response.readyState === 4 && response.status === 200 && response.responseText) {
				    ytScriptSrc = response.responseText;
				    ytDecryptFunction();
				    ytVideos();
				}
				else console.log("Couldn't get the signature content.");
			    };
			    oReq.onerror = function() {
				console.log("Couldn't make the request. Make sure your browser user scripts extension supports cross-domain requests.");
			    };
			    oReq.send();
			}
			catch(e) {
			    console.log("Couldn't make the request. Make sure your browser user scripts extension supports cross-domain requests.");
			}
		    }
		}
		else console.log("Couldn't get the signature link.");
	    }
	    else {
		ytVideos();
	    }
	}
	else {
	    if (ytHLSVideos) {
		try {
		    ytHLSContent = getMyContent(ytHLSVideos, 'TEXT', false);
		    ytHLS();
		}
		catch(e) {
		    try {
			var oReq = new XMLHttpRequest();
			oReq.open("GET", ytHLSVideos);
			oReq.onload = function(response) {
			    if (response.readyState === 4 && response.status === 200 && response.responseText) {
				ytHLSContent = response.responseText;
			    }
			    ytHLS();
			};
			oReq.onerror = function() {
			    ytHLS();
			};
			oReq.send();
		    }
		    catch(e) {
			ytHLS();
		    }
		}
	    }
	    else console.log("Couldn't get the videos content.");
	}
    }

})();