Tampermonkey (=Greasemonkey für Chrome) ist ein Plugin für Chrome.
Hier der Link (https://chrome.google.com/webstore/detail/tampermonkey/dhdgffkkebhmkfjojejmpbldmpobfkfo?hl=de) dazu.
Tampermonkey ermöglicht es dir grob gesagt, Scripte zu installieren, die zB irgendwelche Buttons auf Seiten hinzufügen. In diesem Fall erscheint unter einem Youtube-Video ein Download-Button.
Dazu brauchst du
// ==UserScript==
// @name Download YouTube Videos as MP4
// @description Adds a button that lets you download YouTube videos.
// @homepageURL http://userscripts.org/scripts/show/25105
// @updateURL https://userscripts.org/scripts/source/25105.meta.js
// @author Gantt
// @version 1.7.18
// @date 2014-01-14
// @namespace http://googlesystem.blogspot.com
// @include http://www.youtube.com/*
// @include https://www.youtube.com/*
// @exclude http://www.youtube.com/embed/*
// @exclude https://www.youtube.com/embed/*
// @match http://www.youtube.com/*
// @match https://www.youtube.com/*
// @match http://s.ytimg.com/yts/jsbin/html5player*
// @match https://s.ytimg.com/yts/jsbin/html5player*
// @match http://*.googlevideo.com/videoplayback*
// @match https://*.googlevideo.com/videoplayback*
// @match http://*.youtube.com/videoplayback*
// @match https://*.youtube.com/videoplayback*
// @grant GM_xmlhttpRequest
// @grant GM_getValue
// @grant GM_setValue
// @run-at document-end
// @license MIT License
// @icon data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAEAAAABACAMAAACdt4HsAAAAB3RJTUUH2wMOCgIoGUYEA QAAAAlwSFlzAAALEgAACxIB0t1+/AAAAARnQU1BAACxjwv8YQUAAAGSUExURfi/JO/v797e3sbGxq2traWlpZSUlJycnNbW1oyEhIRaWow5OZQhIZwYGKUQEKUICK0ICJQxMYxKSoxzc4x7e4R CQpQYGKUAAK0AALUAAL0AAK0QEIxra5QpKa0YGIxSUsYAAKUhIZR7e87Ozr0ICJRSUr29vYxjY6U5OaU pKa0hIb21tZwAALUICO/Ozu/GxqUxMZSEhLUYGO/W1r0YGKVCQpQQEL0pKffe3vfW1pxra5Q5OcZCQvfn585CQr2trZx7e8ZSUs5SUq05Oc5jY9ZjY84AAKW MjM5zc957e60pKdaMjOelpbWcnLWUlLVCQsYYGMYICNbOzpQICMYhIbV7e5xaWt6cnPfv79bGxt6lpe+ 9vc5KSs6lpb0xMc6EhM69vbUxMbUhIb1aWs61tcZaWuecnMYxMb1KSsZjY96UlNa1td7W1r17e9a9vZw QEN6trb1jY8YQENZra+fOzr1zc85aWufe3t6MjMY5OdZaWt61tdZ7e+/n5+e9vc6MjMZra+/e3ue1tdalpd7GxrUpKalL4aAAAAABdFJOUwBA5thmAAACxklEQVR42uXX/1/SQBgH8NuAoEQ2ijgbBivJLznBAiUUKiyJSgOVAk0tKZKw75mRRt/7v4MBY8ezjW39Vs8v8rqHz/u1jbvbidC/XL8KmcpOqVT6nSjXjooGw8WfFd+QWGfE4oLbtbr++PdMOy0BDYLjEj/0xevfWIyVAI7b/aIj/9WHsRrA8Yf9bqSexVgD4Lic9kWE/LgPwPGfNfJHDO4P8Iuq+S2M9QD8oUp+nxEAcFCtfgIA/14x/9ElAKDQbNQAwN9VAiYEABy0OgsAWAnB/AcBAtVWawkAfJ4CD0BQADZavYcQgI9h3CCQjpD5PcEgwG+SwLRhIL0vz78SjAPEU3hrHODfyX4I6rUJI P0G3oExoNwFXpoB+HwXmDEFpF9IwKA5YK+Tp9fMAdUOsC6YA553gKcmgdTfAhV1oMQqADndQDmJ0AZLA sFnCIV3VYDHJLAjDkZKciAaFz/lCeBJB1glgXBrNLndBWLJ9uZGAI+keTBLANL8SnWAzWRniAC2pG+6lQF0hfjTqCIBrEvjDwiggFSLuIU oLY0vEwAbUcsnc/LlnO02HGvEz+hXEeJ5Yj+4L2vNkxOJDSnlQzliIq2synr3embiUBjmw0FyU83KX04Ob+9aAK/Ppd5deZloz4HFlCHzt3sX0x2a6LcvQb4ab8r7i+DVdqvnCq/D5ZzqdhfAcr5B9wD0PNwPEu0ZnLwK9oPgNfCQJ2fhhhITJ3E8BjeUOXA+QNQlBh5xLjemVCgKjzgzNIJ FjWF4yJoKhafgIWt6VHGmjgR0HvMuTipPdWQJ6AImbBRSE8aY/sC4er5xFx5vHyB4YRRpFWUf0AL4c+dHkHZRFo9TDeB9Aa3Llwjr8FlFwB+wO/rHm0VbPae9mPini/O5h/XGxatw2I6fGHAOuhiGZVxO98lTdgutP94yaIvVdqxZdpvFYTT9X9UfqQQlTXlm8wkAAAAASUVORK5CYI I=
// ==/UserScript==
(function () {
var FORMAT_LABEL={'5':'FLV 240p','18':'MP4 360p','22':'MP4 720p','34':'FLV 360p','35':'FLV 480p','37':'MP4 1080p','38':'MP4 2160p','43':'WebM 360p','44':'WebM 480p','45':'WebM 720p','46':'WebM 1080p','135':'MP4 480p - no audio','137':'MP4 1080p - no audio','138':'MP4 2160p - no audio','139':'M4A 48kbps - audio','140':'M4A 128kbps - audio','141':'M4A 256kbps - audio','264':'MP4 1440p - no audio'};
var FORMAT_TYPE={'5':'flv','18':'mp4','22':'mp4','34':'flv','35':'flv','37':'mp4','3 8':'mp4','43':'webm','44':'webm','45':'webm','46':'webm','135':'mp4','137':'mp4' ,'138':'mp4','139':'m4a','140':'m4a','141':'m4a','264':'mp4'};
var FORMAT_ORDER=['5','18','34','43','35','135','44','22','45','37','46','264','38','139','140','1 41'];
var FORMAT_RULE={'flv':'max','mp4':'all','webm':'none','m4a':'max'};
// all=display all versions, max=only highest quality version, none=no version
// the default settings show all MP4 videos, the highest quality FLV and no WebM
var SHOW_DASH_FORMATS=false;
var BUTTON_TEXT={'ar':'تنزيل','cs':'Stáhnout','de':'Herunterladen','en':'Download',' es':'Descargar','fr':'Télécharger','hi':'डाउनलोड','id':'Unduh','it':'Scarica','j a':'ダウンロード','ko':'내려받기','pl':'Pobierz','pt':'Baixar','ro':'Descărcați','ru':'Ска чать','tr':'İndir','zh':'下载'};
var BUTTON_TOOLTIP={'ar':'تنزيل هذا الفيديو','cs':'Stáhnout toto video','de':'Dieses Video herunterladen','en':'Download this video','es':'Descargar este vídeo','fr':'Télécharger cette vidéo','hi':'वीडियो डाउनलोड करें','id':'Unduh video ini','it':'Scarica questo video','ja':'このビデオをダウンロードする','ko':'이 비디오를 내려받기','pl':'Pobierz plik wideo','pt':'Baixar este vídeo','ro':'Descărcați acest videoclip','ru':'Скачать это видео','tr': 'Bu videoyu indir','zh':'下载此视频'};
var DECODE_RULE={};
var RANDOM=7489235179; // Math.floor(Math.random()*1234567890);
var CONTAINER_ID='download-youtube-video'+RANDOM;
var LISTITEM_ID='download-youtube-video-fmt'+RANDOM;
var BUTTON_ID='download-youtube-video-button'+RANDOM;
var DEBUG_ID='download-youtube-video-debug-info';
var STORAGE_URL='download-youtube-script-url';
var STORAGE_CODE='download-youtube-signature-code';
var STORAGE_DASH='download-youtube-dash-enabled';
var isDecodeRuleUpdated=false;
start();
function start() {
var pagecontainer=document.getElementById('page-container');
if (!pagecontainer) return;
if (/^https?:\/\/www\.youtube.com\/watch\?/.test(window.location.href)) run();
var isAjax=/class[\w\s"'-=]+spf\-link/.test(pagecontainer.innerHTML);
var content=document.getElementById('content');
if (isAjax && content) { // Ajax UI
var mo=window.MutationObserver||window.WebKitMutationObserver;
if(typeof mo!=='undefined') {
var observer=new mo(function(mutations) {
mutations.forEach(function(mutation) {
if(mutation.addedNodes!==null) {
for (var i=0; i<mutation.addedNodes.length; i++) {
if (mutation.addedNodes[i].id=='watch7-container') { // old value: movie_player
run();
break;
}
}
}
});
});
observer.observe(content, {childList: true, subtree: true}); // old value: pagecontainer
} else { // MutationObserver fallback for old browsers
pagecontainer.addEventListener('DOMNodeInserted', onNodeInserted, false);
}
}
}
function onNodeInserted(e) {
if (e && e.target && e.target.id=='watch7-container') { // old value: movie_player
run();
}
}
function run() {
if (document.getElementById(CONTAINER_ID)) return; // check download container
if (document.getElementById('p') && document.getElementById('vo')) return; // Feather not supported
var videoID, videoFormats, videoAdaptFormats, videoManifestURL, scriptURL=null;
var isSignatureUpdatingStarted=false;
var operaTable=new Array();
var language=document.documentElement.getAttribute('lang');
var textDirection='left';
if (document.body.getAttribute('dir')=='rtl') {
textDirection='right';
}
fixTranslations(language, textDirection);
// obtain video ID, formats map
var args=null;
var usw=(typeof this.unsafeWindow !== 'undefined')?this.unsafeWindow:window; // Firefox, Opera<15
if (usw.ytplayer && usw.ytplayer.config && usw.ytplayer.config.args) {
args=usw.ytplayer.config.args;
}
if (args) {
videoID=args['video_id'];
videoFormats=args['url_encoded_fmt_stream_map'];
videoAdaptFormats=args['adaptive_fmts'];
videoManifestURL=args['dashmpd'];
debug('DYVAM - Info: Standard mode. videoID '+(videoID?videoID:'none')+'; ');
}
if (usw.ytplayer && usw.ytplayer.config && usw.ytplayer.config.assets) {
scriptURL=usw.ytplayer.config.assets.js;
}
if (videoID==null) { // unsafeWindow workaround (Chrome, Opera 15+)
var buffer=document.getElementById(DEBUG_ID+'2')
if (buffer) {
while (buffer.firstChild) {
buffer.removeChild(buffer.firstChild);
}
} else {
buffer=createHiddenElem('pre', DEBUG_ID+'2');
}
injectScript ('document.getElementById("'+DEBUG_ID+'2").appendChild(document.createTextNode(\'"video_id":"\'+ytplayer.config.args.video_id+\'", "js":"\'+ytplayer.config.assets.js+\'", "dashmpd":"\'+ytplayer.config.args.dashmpd+\'", "url_encoded_fmt_stream_map":"\'+ytplayer.config.args.url_encoded_fmt_stream_map+\'", "adaptive_fmts":"\'+ytplayer.config.args.adaptive_fmts+\'"\'));');
var code=buffer.innerHTML;
if (code) {
videoID=findMatch(code, /\"video_id\":\s*\"([^\"]+)\"/);
videoFormats=findMatch(code, /\"url_encoded_fmt_stream_map\":\s*\"([^\"]+)\"/);
videoFormats=videoFormats.replace(/&/g,'\\u0026');
videoAdaptFormats=findMatch(code, /\"adaptive_fmts\":\s*\"([^\"]+)\"/);
videoAdaptFormats=videoAdaptFormats.replace(/&/g,'\\u0026');
videoManifestURL=findMatch(code, /\"dashmpd\":\s*\"([^\"]+)\"/);
scriptURL=findMatch(code, /\"js\":\s*\"([^\"]+)\"/);
}
debug('DYVAM - Info: Injection mode. videoID '+(videoID?videoID:'none')+'; ');
}
if (videoID==null) { // if all else fails
var bodyContent=document.body.innerHTML;
if (bodyContent!=null) {
videoID=findMatch(bodyContent, /\"video_id\":\s*\"([^\"]+)\"/);
videoFormats=findMatch(bodyContent, /\"url_encoded_fmt_stream_map\":\s*\"([^\"]+)\"/);
videoAdaptFormats=findMatch(bodyContent, /\"adaptive_fmts\":\s*\"([^\"]+)\"/);
videoManifestURL=findMatch(bodyContent, /\"dashmpd\":\s*\"([^\"]+)\"/);
if (scriptURL==null) {
scriptURL=findMatch(bodyContent, /\"js\":\s*\"([^\"]+)\"/);
scriptURL=scriptURL.replace(/\\/g,'');
}
}
debug('DYVAM - Info: Brute mode. videoID '+(videoID?videoID:'none')+'; ');
}
debug('DYVAM - Info: url '+window.location.href+'; useragent '+window.navigator.userAgent);
if (videoID==null || videoFormats==null || videoID.length==0 || videoFormats.length==0) {
debug('DYVAM - Error: No config information found. YouTube must have changed the code.');
return;
}
// Opera 12 extension message handler
if (typeof window.opera !== 'undefined' && window.opera && typeof opera.extension !== 'undefined') {
opera.extension.onmessage = function(event) {
var index=findMatch(event.data.action, /xhr\-([0-9]+)\-response/);
if (index && operaTable[parseInt(index,10)]) {
index=parseInt(index,10);
var trigger=(operaTable[index])['onload'];
if (typeof trigger === 'function' && event.data.readyState == 4) {
if (trigger) {
trigger(event.data);
}
}
}
}
}
if (!isDecodeRuleUpdated) {
DECODE_RULE=getDecodeRules(DECODE_RULE);
isDecodeRuleUpdated=true;
}
if (scriptURL) {
if (scriptURL.indexOf('//')==0) {
var protocol=(document.location.protocol=='http:')?'http:':'https:';
scriptURL=protocol+scriptURL;
}
fetchSignatureScript(scriptURL);
}
// video title
var videoTitle=document.title || 'video';
videoTitle=videoTitle.replace(/\s*\-\s*YouTube$/i,'').replace(/[#"\?:\*]/g,'').replace(/[&\|\\\/]/g,'_').replace(/'/g,'\'').replace(/^\s+|\s+$/g,'').replace(/\.+$/g,'');
// parse the formats map
var sep1='%2C', sep2='%26', sep3='%3D';
if (videoFormats.indexOf(',')>-1) {
sep1=',';
sep2=(videoFormats.indexOf('&')>-1)?'&':'\\u0026';
sep3='=';
}
var videoURL=new Array();
var videoSignature=new Array();
if (videoAdaptFormats) {
videoFormats=videoFormats+sep1+videoAdaptFormats;
}
var videoFormatsGroup=videoFormats.split(sep1);
for (var i=0;i<videoFormatsGroup.length;i++) {
var videoFormatsElem=videoFormatsGroup[i].split(sep2);
var videoFormatsPair=new Array();
for (var j=0;j<videoFormatsElem.length;j++) {
var pair=videoFormatsElem[j].split(sep3);
if (pair.length==2) {
videoFormatsPair[pair[0]]=pair[1];
}
}
if (videoFormatsPair['url']==null) continue;
var url=unescape(unescape(videoFormatsPair['url'])).replace(/\\\//g,'/').replace(/\\u0026/g,'&');
if (videoFormatsPair['itag']==null) continue;
var itag=videoFormatsPair['itag'];
var sig=videoFormatsPair['sig']||videoFormatsPair['signature'];
if (sig) {
url=url+'&signature='+sig;
videoSignature[itag]=null;
} else if (videoFormatsPair['s']) {
url=url+'&signature='+decryptSignature(videoFormatsPair['s']);
videoSignature[itag]=videoFormatsPair['s'];
}
if (url.toLowerCase().indexOf('ratebypass')==-1) { // speed up download for dash
url=url+'&ratebypass=yes';
}
if (url.toLowerCase().indexOf('http')==0) { // validate URL
videoURL[itag]=url+'&title='+videoTitle;
}
}
var showFormat=new Array();
for (var category in FORMAT_RULE) {
var rule=FORMAT_RULE[category];
for (var index in FORMAT_TYPE){
if (FORMAT_TYPE[index]==category) {
showFormat[index]=(rule=='all');
}
}
if (rule=='max') {
for (var i=FORMAT_ORDER.length-1;i>=0;i--) {
var format=FORMAT_ORDER[i];
if (FORMAT_TYPE[format]==category && videoURL[format]!=undefined) {
showFormat[format]=true;
break;
}
}
}
}
var dashPref=getPref(STORAGE_DASH);
if (dashPref=='1') {
SHOW_DASH_FORMATS=true;
} else if (dashPref!='0') {
setPref(STORAGE_DASH,'0');
}
var downloadCodeList=[];
for (var i=0;i<FORMAT_ORDER.length;i++) {
var format=FORMAT_ORDER[i];
if (format=='37' && videoURL[format]==undefined) { // hack for dash 1080p
if (videoURL['137']) {
format='137';
}
showFormat[format]=showFormat['37'];
} else if (format=='38' && videoURL[format]==undefined) { // hack for dash 4K
if (videoURL['138']) {
format='138';
}
showFormat[format]=showFormat['38'];
}
if (!SHOW_DASH_FORMATS && format.length>2) continue;
if (videoURL[format]!=undefined && FORMAT_LABEL[format]!=undefined && showFormat[format]) {
downloadCodeList.push({url:videoURL[format],sig:videoSignature[format],format:format,label:FORMAT_LABEL[format]});
debug('DYVAM - Info: itag'+format+' url:'+videoURL[format]);
}
}
if (downloadCodeList.length==0) {
debug('DYVAM - Error: No download URL found. Probably YouTube uses encrypted streams.');
return; // no format
}
// find parent container
var parentElement=document.getElementById('watch7-action-buttons');
if (parentElement==null) {
debug('DYVAM - No container for adding the download button. YouTube must have changed the code.');
return;
}
// get button labels
var buttonText=(BUTTON_TEXT[language])?BUTTON_TEXT[language]:BUTTON_TEXT['en'];
var buttonLabel=(BUTTON_TOOLTIP[language])?BUTTON_TOOLTIP[language]:BUTTON_TOOLTIP['en'];
// generate download code for regular interface
var mainSpan=document.createElement('span');
var spanButton=document.createElement('span');
spanButton.setAttribute('class', 'yt-uix-button-content');
spanButton.appendChild(document.createTextNode(buttonText+' '));
mainSpan.appendChild(spanButton);
var imgButton=document.createElement('img');
imgButton.setAttribute('class', 'yt-uix-button-arrow');
imgButton.setAttribute('src', '//s.ytimg.com/yt/img/pixel-vfl3z5WfW.gif');
mainSpan.appendChild(imgButton);
var listItems=document.createElement('ol');
listItems.setAttribute('style', 'display:none;');
listItems.setAttribute('class', 'yt-uix-button-menu');
for (var i=0;i<downloadCodeList.length;i++) {
var listItem=document.createElement('li');
var listLink=document.createElement('a');
listLink.setAttribute('style', 'text-decoration:none;');
listLink.setAttribute('href', downloadCodeList[i].url);
listLink.setAttribute('download', videoTitle+'.'+FORMAT_TYPE[downloadCodeList[i].format]);
var listSpan=document.createElement('span');
listSpan.setAttribute('class', 'yt-uix-button-menu-item');
listSpan.setAttribute('loop', i+'');
listSpan.setAttribute('id', LISTITEM_ID+downloadCodeList[i].format);
listSpan.appendChild(document.createTextNode(downloadCodeList[i].label));
listLink.appendChild(listSpan);
listItem.appendChild(listLink);
listItems.appendChild(listItem);
}
mainSpan.appendChild(listItems);
var buttonElement=document.createElement('button');
buttonElement.setAttribute('id', BUTTON_ID);
buttonElement.setAttribute('class', 'yt-uix-button yt-uix-tooltip yt-uix-button-empty yt-uix-button-text');
buttonElement.setAttribute('style', 'margin-top:4px; margin-left:'+((textDirection=='left')?5:10)+'px;');
buttonElement.setAttribute('data-tooltip-text', buttonLabel);
buttonElement.setAttribute('type', 'button');
buttonElement.setAttribute('role', 'button');
buttonElement.addEventListener('click', function(){return false;}, false);
buttonElement.appendChild(mainSpan);
// add the button
var containerSpan=document.createElement('span');
containerSpan.setAttribute('id', CONTAINER_ID);
containerSpan.appendChild(document.createTextNode(' '));
containerSpan.appendChild(buttonElement);
parentElement.appendChild(containerSpan);
if (!isSignatureUpdatingStarted) {
for (var i=0;i<downloadCodeList.length;i++) {
addFileSize(downloadCodeList[i].url, downloadCodeList[i].format);
}
}
if (typeof GM_download !== 'undefined') {
for (var i=0;i<downloadCodeList.length;i++) {
var downloadFMT=document.getElementById(LISTITEM_ID+downloadCodeList[i].format);
var url=(downloadCodeList[i].url).toLowerCase();
if (url.indexOf('clen=')>0 && url.indexOf('dur=')>0 && url.indexOf('gir=')>0
&& url.indexOf('lmt=')>0) {
downloadFMT.addEventListener('click', downloadVideoNatively, false);
}
}
}
addFromManifest('140', '141'); // replace fmt140 with fmt141 if found in manifest
function downloadVideoNatively(e) {
var elem=e.currentTarget;
e.returnValue=false;
if (e.preventDefault) {
e.preventDefault();
}
var loop=elem.getAttribute('loop');
if (loop) {
GM_download(downloadCodeList[loop].url, videoTitle+'.'+FORMAT_TYPE[downloadCodeList[loop].format]);
}
return false;
}
function addFromManifest(oldFormat, newFormat) { // find newFormat URL in manifest
if (videoManifestURL && videoURL[newFormat]==undefined && SHOW_DASH_FORMATS && FORMAT_RULE['m4a']=='max') {
var matchSig=findMatch(videoManifestURL, /\/s\/([a-zA-Z0-9\.]+)\//i);
if (matchSig) {
var decryptedSig=decryptSignature(matchSig);
if (decryptedSig) {
videoManifestURL=videoManifestURL.replace('/s/'+matchSig+'/','/signature/'+decryptedSig+'/');
}
}
if (videoManifestURL.indexOf('//')==0) {
var protocol=(document.location.protocol=='http:')?'http:':'https:';
videoManifestURL=protocol+videoManifestURL;
}
crossXmlHttpRequest({
method:'GET',
url:videoManifestURL, // check if URL exists
onload:function(response) {
if (response.readyState === 4 && response.status === 200 && response.responseText) {
var regexp = new RegExp('<BaseURL.+>(http[^<]+itag='+newFormat+'[^<]+)<\\/BaseURL>','i');
var matchURL=findMatch(response.responseText, regexp);
if (!matchURL) return;
matchURL=matchURL.replace(/&\;/g,'&');
for (var i=0;i<downloadCodeList.length;i++) {
if (downloadCodeList[i].format==oldFormat) {
downloadCodeList[i].format==newFormat;
var downloadFMT=document.getElementById(LISTITEM_ID+oldFormat);
downloadFMT.setAttribute('id', LISTITEM_ID+newFormat);
downloadFMT.parentNode.setAttribute('href', matchURL);
downloadCodeList[i].url=matchURL;
downloadFMT.firstChild.nodeValue=FORMAT_LABEL[newFormat];
addFileSize(matchURL, newFormat);
}
}
}
}
});
}
}
function injectStyle(code) {
var style=document.createElement('style');
style.type='text/css';
style.appendChild(document.createTextNode(code));
document.getElementsByTagName('head')[0].appendChild(style);
}
function injectScript(code) {
var script=document.createElement('script');
script.type='application/javascript';
script.textContent=code;
document.body.appendChild(script);
document.body.removeChild(script);
}
function debug(str) {
var debugElem=document.getElementById(DEBUG_ID);
if (!debugElem) {
debugElem=createHiddenElem('div', DEBUG_ID);
}
debugElem.appendChild(document.createTextNode(str+' '));
}
function createHiddenElem(tag, id) {
var elem=document.createElement(tag);
elem.setAttribute('id', id);
elem.setAttribute('style', 'display:none;');
document.body.appendChild(elem);
return elem;
}
function fixTranslations(language, textDirection) {
if (/^af|bg|bn|ca|cs|de|el|es|et|eu|fa|fi|fil|fr|gl|hi|hr|hu|id|it|iw|kn|lv|lt|ml|mr| ms|nl|pl|pt|ro|ru|sl|sk|sr|sw|ta|te|th|uk|ur|vi|zu$/.test(language)) { // fix international UI
var likeButton=document.getElementById('watch-like');
if (likeButton) {
var spanElements=likeButton.getElementsByClassName('yt-uix-button-content');
if (spanElements) {
spanElements[0].style.display='none'; // hide like text
}
}
var marginPixels=10;
if (/^bg|ca|cs|el|es|eu|fr|hr|it|ml|ms|pl|ro|ru|sl|sw|te$/.test(language)) {
marginPixels=1;
}
injectStyle('#watch7-secondary-actions .yt-uix-button{margin-'+textDirection+':'+marginPixels+'px!important}');
}
}
function findMatch(text, regexp) {
var matches=text.match(regexp);
return (matches)?matches[1]:null;
}
function isString(s) {
return (typeof s==='string' || s instanceof String);
}
function isInteger(n) {
return (typeof n==='number' && n%1==0);
}
function getPref(name) { // cross-browser GM_getValue
if (typeof GM_getValue === 'function' &&
(typeof GM_getValue.toString === 'undefined' || GM_getValue.toString().indexOf('not supported') === -1)) {
return GM_getValue(name, null); // Greasemonkey, Tampermonkey, Firefox extension
} else {
var ls=null;
try {ls=window.localStorage||null} catch(e){}
if (ls) {
return ls.getItem(name); // Chrome script, Opera extensions
}
}
return;
}
function setPref(name, value) { // cross-browser GM_setValue
if (typeof GM_setValue === 'function' &&
(typeof GM_setValue.toString === 'undefined' || GM_setValue.toString().indexOf('not supported') === -1)) {
GM_setValue(name, value); // Greasemonkey, Tampermonkey, Firefox extension
} else {
var ls=null;
try {ls=window.localStorage||null} catch(e){}
if (ls) {
return ls.setItem(name, value); // Chrome script, Opera extensions
}
}
}
function crossXmlHttpRequest(details) { // cross-browser GM_xmlhttpRequest
if (typeof GM_xmlhttpRequest === 'function') { // Greasemonkey, Tampermonkey, Firefox extension, Chrome script
GM_xmlhttpRequest(details);
} else if (typeof window.opera !== 'undefined' && window.opera && typeof opera.extension !== 'undefined' &&
typeof opera.extension.postMessage !== 'undefined') { // Opera 12 extension
var index=operaTable.length;
opera.extension.postMessage({'action':'xhr-'+index, 'url':details.url, 'method':details.method});
operaTable[index]=details;
} else if (typeof window.opera === 'undefined' && typeof XMLHttpRequest === 'function') { // Opera 15+ extension
var xhr=new XMLHttpRequest();
xhr.onreadystatechange = function() {
if (xhr.readyState == 4) {
if (details['onload']) {
details['onload'](xhr);
}
}
}
xhr.open(details.method, details.url, true);
xhr.send();
}
}
function addFileSize(url, format) {
function updateVideoLabel(size, format) {
var elem=document.getElementById(LISTITEM_ID+format);
if (elem) {
size=parseInt(size,10);
if (size>=1073741824) {
size=parseFloat((size/1073741824).toFixed(1))+' GB';
} else if (size>=1048576) {
size=parseFloat((size/1048576).toFixed(1))+' MB';
} else {
size=parseFloat((size/1024).toFixed(1))+' KB';
}
if (elem.childNodes.length>1) {
elem.lastChild.nodeValue=' ('+size+')';
} else if (elem.childNodes.length==1) {
elem.appendChild(document.createTextNode(' ('+size+')'));
}
}
}
var matchSize=findMatch(url, /[&\?]clen=([0-9]+)&/i);
if (matchSize) {
updateVideoLabel(matchSize, format);
} else {
try {
crossXmlHttpRequest({
method:'HEAD',
url:url,
onload:function(response) {
if (response.readyState == 4 && response.status == 200) { // add size
var size=0;
if (typeof response.getResponseHeader === 'function') {
size=response.getResponseHeader('Content-length');
} else if (response.responseHeaders) {
var regexp = new RegExp('^Content\-length: (.*)$','im');
var match = regexp.exec(response.responseHeaders);
if (match) {
size=match[1];
}
}
if (size) {
updateVideoLabel(size, format);
}
}
}
});
} catch(e) { }
}
}
function findSignatureCode(sourceCode) {
var functionName=findMatch(sourceCode, /\.signature\s*=\s*(\w+)\(\w+\)/);
if (functionName==null) return setPref(STORAGE_CODE, 'error');
var regCode=new RegExp('function '+functionName+
'\\s*\\(\\w+\\)\\s*{\\w+=\\w+\\.split\\(""\\);(.+);return \\w+\\.join');
var functionCode=findMatch(sourceCode, regCode);
if (functionCode==null) return setPref(STORAGE_CODE, 'error');
var regSlice=new RegExp('slice\\s*\\(\\s*(.+)\\s*\\)');
var regSwap=new RegExp('\\w+\\s*\\(\\s*\\w+\\s*,\\s*([0-9]+)\\s*\\)');
var regInline=new RegExp('\\w+\\[0\\]\\s*=\\s*\\w+\\[([0-9]+)\\s*%\\s*\\w+\\.length\\]');
var functionCodePieces=functionCode.split(';');
var decodeArray=[], signatureLength=81;
for (var i=0; i<functionCodePieces.length; i++) {
functionCodePieces[i]=functionCodePieces[i].trim();
if (functionCodePieces[i].length==0) {
} else if (functionCodePieces[i].indexOf('slice') >= 0) { // slice
var slice=findMatch(functionCodePieces[i], regSlice);
slice=parseInt(slice, 10);
if (isInteger(slice)){
decodeArray.push(-slice);
signatureLength+=slice;
} else return setPref(STORAGE_CODE, 'error');
} else if (functionCodePieces[i].indexOf('reverse') >= 0) {
decodeArray.push(0);
} else if (functionCodePieces[i].indexOf('[0]') >= 0) {
if (i+2<functionCodePieces.length &&
functionCodePieces[i+1].indexOf('.length') >= 0 &&
functionCodePieces[i+1].indexOf('[0]') >= 0) {
var inline=findMatch(functionCodePieces[i+1], regInline);
inline=parseInt(inline, 10);
decodeArray.push(inline);
i+=2;
} else return setPref(STORAGE_CODE, 'error');
} else if (functionCodePieces[i].indexOf(',') >= 0) {
var swap=findMatch(functionCodePieces[i], regSwap);
swap=parseInt(swap, 10);
if (isInteger(swap)){
decodeArray.push(swap);
} else return setPref(STORAGE_CODE, 'error');
} else return setPref(STORAGE_CODE, 'error');
}
if (decodeArray) {
setPref(STORAGE_URL, scriptURL);
setPref(STORAGE_CODE, decodeArray.toString());
DECODE_RULE[signatureLength]=decodeArray;
// update download links and add file sizes
for (var i=0;i<downloadCodeList.length;i++) {
var elem=document.getElementById(LISTITEM_ID+downloadCodeList[i].format);
var url=downloadCodeList[i].url;
var sig=downloadCodeList[i].sig;
if (elem && url && sig) {
url=url.replace(/\&signature=[\w\.]+/, '&signature='+decryptSignature(sig));
elem.parentNode.setAttribute('href', url);
addFileSize(url, downloadCodeList[i].format);
}
}
}
}
function isValidSignatureCode(arr) { // valid values: '5,-3,0,2,5', 'error'
if (!arr) return false;
if (arr=='error') return true;
arr=arr.split(',');
for (var i=0;i<arr.length;i++) {
if (!isInteger(parseInt(arr[i],10))) return false;
}
return true;
}
function fetchSignatureScript(scriptURL) {
var storageURL=getPref(STORAGE_URL);
var storageCode=getPref(STORAGE_CODE);
if (storageCode && isValidSignatureCode(storageCode) && storageURL &&
scriptURL.replace(/^https?/i,'')==storageURL.replace(/^https?/i,'')) return;
try {
isSignatureUpdatingStarted=true;
crossXmlHttpRequest({
method:'GET',
url:scriptURL,
onload:function(response) {
if (response.readyState === 4 && response.status === 200 && response.responseText) {
findSignatureCode(response.responseText);
}
}
});
} catch(e) { }
}
function getDecodeRules(rules) {
var storageCode=getPref(STORAGE_CODE);
if (storageCode && storageCode!='error' && isValidSignatureCode(storageCode)) {
var arr=storageCode.split(',');
var signatureLength=81;
for (var i=0; i<arr.length; i++) {
arr[i]=parseInt(arr[i], 10);
if (arr[i]<0) signatureLength-=arr[i];
}
rules[signatureLength]=arr;
}
return rules;
}
function decryptSignature(sig) {
function swap(a,b){var c=a[0];a[0]=a[b%a.length];a[b]=c;return a};
function decode(sig, arr) { // encoded decryption
if (!isString(sig)) return null;
var sigA=sig.split('');
for (var i=0;i<arr.length;i++) {
var act=arr[i];
if (!isInteger(act)) return null;
sigA=(act>0)?swap(sigA, act):((act==0)?sigA.reverse():sigA.slice(-act));
}
var result=sigA.join('');
return (result.length==81)?result:sig;
}
if (sig==null) return '';
var arr=DECODE_RULE[sig.length];
if (arr) {
var sig2=decode(sig, arr);
if (sig2 && sig2.length==81) return sig2;
}
return sig;
}
}
})();
Dieses Script, das du dann in Tampermonkey reinkopierst.
Ist allerdings schon etwas älter und momentan kannst du damit Videos nur als Video runterladen und nicht schon vorkonvertiert als .mp3
danke Dir für den wirklich sehr ausführlichen Post, aber habe nun ein eigenes Programm, um Videos downzuloaden Mosher.
merci Dir nochmals !
mfg
klon