YouTube Video Download

By Aaron Bassett — Last update May 28, 2007 — Installed 22,388 times.
// ==UserScript==
// @name		YouTube Download
// @author		Aaron Bassett http://foobr.co.uk
// @description		Creates a download link for any youtube video
// @include		*youtube.com/watch*
// ==/UserScript==

(function(){
	var downloadImageData = "data:image/png,%89PNG%0D%0A%1A%0A%00%00%00%0DIHDR%00%00%00%10%00%00%00%10%08%06%00%00%00%1F%F3%FFa%00%00%00%04gAMA%00%00%AF%C87%05%8A%E9%00%00%00%19tEXtSoftware%00Adobe%20ImageReadyq%C9e%3C%00%00%02%B8IDAT8%CBm%92_HSa%18%C6%9F%EFl%E7lg%CDi4%5B%A0%A5ba%05*%98Zt%23%15D%17%23)%A1%A4%15%04%25%A1Wy%11t%13%DD%08%DD%A4%88%10Q%81D%5D%A4%17%5D%0820!%8A%08-%CC2%24Bb%0B%CBH%25%9B%B3%CD%ED%FC%ED9%8B%C4lg%E7%B7s8%EF%F7%3C%DF%FB%E7%13%9D%9D%9D%D3%96e%95%91%85%BE%BE%BEJ%E4%B9ZZZ%3E%E8%BA%5Ei%18F%2C%1A%8D%EEY%1FsS%B8%D34%CD%87%E4bkk%AB%9D%CF%80b%87%1Erlc%CCM%A1%87%9C%A4%BB%5E%7C%A1%C7%F0J%1Eh%86%0D%CD%02%DA%8Aoa%BB%1F8wy%CCMq%13%D9%BB%D1%40%A2%F0%3D%B9Mf%5E%CBw%D5%94%BA%ACJ%BE%A0j%ABA5%8E%1A%B5P%FD%AEj%9A%F6%89%DC'S%FFe%40a%804%11%A3P~%87%17%A9%09%D4%BB%BA!%99U%18Y%3A%81%A9D54%ED%BC%C1%DDO%93%C2%7C%06%3A%893X%1D%F2%00%0D%5B%FCHh%1D%F8%95%AE%C1%D2%F2Q%CC%AC%14%3B%F5%5B%C4Y%13%DAh%20%22%91%C84%0D%1E3%18%0E%F7%96%D7)%C2%07%83%BF%C9%E1%B3(%A0aZ3%B0%D9%AF%E0%DB%C2*%84%04%F8%7D.X%B6%C0%CF%E4*%9E%BE%9D%DB%EF4'%40%9AC%A1P%ED%C8%95%B95%E7%40c%06%87%1B%AB%D0%5C%E7%C7%F0%F8W%5C%8B%FC3%3D%3Cx%B6%08%CB%12%AF%1C%83%24%19%8A%C7%E3F%D5%F5%A1%7D*%A7%A0%9B%C0%FC%F3q%2C%AD%18%B9%C5%A3%13%F3%08%1F(%CD%BDg%F8Ic%7C1%A1A%08%0B%12%3B%AB%90%0A%E2%1A%CF%DE%40%D2%8C%C1%E2%02I%12p%F1T%E8%A6%85%EE%F6%3A%EEf%C3%24%2C%00%3E%B7%85l6%8BdJ%83%9BB%99%19T%10%B1~%0A%5EYB%26%AB%A3k%F03%E8%05%83F%16qN%9Am%F3%9F%B7Of%06%14.%93A%22%3BS8%CE%93%E3%0Bv%C0%E0nY%D3%80K%92%99%AA%1B%CC%87O%17%85%12%0D%048%3A%8E%D7%C8ePK%F1%19R~(Xf%2BB%85%AE%96%22%9A%D6%85La%7B%B8%80f%9As%E6r%BB%DA%AC%DB%EBVp%F3%D1%2C~%24S9%03j%F5%7B%8A%A2%F4%3F%B9%3A%BF%D6es%B7S%AF%CC%8AW%D1%3Fy%09A%DF%0Ef!a1%FD%05m%0D%BD%7C%F3%22%9D%FD%D3%83%18%0D%EE%A4R%A97%03%03%03%F5%7F%0DNu%8D%D9%E5%DB%80%90%7F%05Gj%1BQ%A4%94%E4%92HdJ%B0u%93%01%9F%C2S(%04D%AE!y%AE%FA%F6%D1%97%BBJ%D5%83E%9E%22%A6%1C%60%19%3A%84eQ%60%C2%12i%7C%9C%8Da!%A9%E374)%A3t0%D2%BB%00%00%00%00%00IEND%AEB%60%82";

	var scripts = document.getElementsByTagName('script');
	for(var i=0; i < scripts.length; i++) {
		if(scripts[i].src=='') {
			if(scripts[i].innerHTML.indexOf('function writeMoviePlayer') != -1) {
				var regEx = new RegExp('\/player2\.swf[^"]*');
				var urlString = regEx.exec(scripts[i].innerHTML);
				var downloadUrl = urlString[0].replace(/player2.swf/, 'get_video');
				var p     = document.createElement("p");
				var img   = document.createElement("img");
				img.src   = downloadImageData;
				var link  = document.createElement("a");
				var txt   = document.createTextNode(" Download Video");
				link.href = downloadUrl;
				link.className = 'dg';
				link.style.textDecoration = "none";
				
				link.appendChild(img);
				link.appendChild(txt);
				p.appendChild(link);
				document.getElementById('vidDescDiv').appendChild(p);
			}
		}
	}
})();