Embedr - a bookmarklet script to steal embeds from other sites

bookmarklet.html

<a href="javascript:s=document.createElement('SCRIPT');s.type='text/javascript';s.src='https://raw.github.com/gist/1267050/c20d7312e80a152508fb04a91f09fae8248b138c/embedr.js?'+Math.random();document.getElementsByTagName('head')[0].appendChild(s);">Embedr</a>
<ul>
	<li>Grab the link to your bookmarks bar up there</li>
	<li>Click on 'Embedr' bookmark when you are on a page you want to get embeds from</li>
</ul>

embedr.js

var n = 0;
var docs = {};

function embedr( doc ){
	n++;
	//if( n > 10 ) return;
	var l = doc.location;
	
	if( docs[l.href] ){
		return;
	}else{
		docs[l.href] = true;
	}
	
	var result = function( node ){
		if( node.parentNode.nodeName == "OBJECT" ){
			return;
		}
		//console.log("found");
		//console.log( node );
		var clone = node.cloneNode( true );
		var html = clone.outerHTML;
		var re = /src=(['"])([^"']*)(['"])/i;
		
		var matches = html.match( re );
		
		if( matches ){
			var src = matches[2];
			var newSrc = src;
		
			if( src.indexOf("/") == 0 ){
				// absolute url
				newSrc = l.protocol + "//" + l.host + src;
			}
		
			html = html.replace( src , newSrc );
		}
		
		// add base...
		if( node.parentNode.nodeName == "EMBED" ){
			var b = /base=(['"])([^"']*)(['"])/i;
			if( !html.match(b) ){
				//console.log(l.href);
				html = html.replace( new RegExp( "<(" + node.nodeName + ")" , "i" ) , "<$1 base=\"" + l.href + "\" " );
			}
		}
		
		var txt = doc.createElement("textarea");
		txt.innerHTML = html;
		
		var st = "width:" + e.width + ( ( e.width.indexOf("%") > -1 ) ? "" : "px" )+";height:" + e.height + ( ( e.height.indexOf("%") > -1 ) ? "" : "px" ) ;
		txt.setAttribute("style", st );
		
		e.parentNode.appendChild(txt);
		e.setAttribute('style', "display:none");
	}

	var embeds = doc.getElementsByTagName("embed");
	var objects = doc.getElementsByTagName("object");
	var iframes = doc.getElementsByTagName("iframe");
	var links = doc.getElementsByTagName("a");

	for(i=0;i<embeds.length;i++ ){
		var e = embeds[i];
		result(e);
	}
	
	for(i=0;i<objects.length;i++ ){
		var e = objects[i];
		result(e);
	}
	
	for(i=0;i<iframes.length;i++ ){
		var e = iframes[i];
		result( e );
		/*try{
			var e = iframes[i];
			var d = e.contentDocument;
				if( d != undefined ){
					embedr( d );
				}
		}catch(ex){
			
		}*/
		//console.log(e.outerHTML);
		//console.log(e.contentDocument.location.href)
	}
	
	var woRegexp = /window\.open\(([^)]*)\)/i;
	for(i=0;i<links.length;i++){
		var a = links[i];
		var href = a.href;
		var onclick = a.getAttribute("onclick");
		var wo;
		
		if( href && ( wo = woRegexp.exec(onclick) ) ){
			var rawArgs = wo[1].split(",");
			if( rawArgs[0] == "this.href" ){
				var txt = doc.createElement("textarea");
				txt.innerHTML = "<iframe width='100%' height='200' src='"+href+"' frameborder='no' scrollbars='no'></iframe>";
				txt.setAttribute("style", "height:100px" );
				
				a.parentNode.appendChild(txt);
				
			}
		}		
	}

}

embedr( document );