Userscripts.org

String.prototype.getPref = function(s, splitter) {
return this.split(s+"=")[1].split((splitter||"&"))[0];
};

function genDownloadLink() {
var url = window.location.search.substring(1);

// All of the query parameters we need are part of the watch.php page we're already viewing
var whos = url.getPref('v_user_id');
var vix = url.getPref('idx');
var vidid = url.getPref('v');
var clid = url.getPref('cl');

// Build the search URL
var searchUrl = "http://video2.xtube.com/find_video.php?sid=0&v_user_id=" + whos + "&idx=" + vix + "&from=&video_id=" + vidid + "&clip_id=" + clid + "&qid=&qid=&qidx=&qnum=";
// Make the search request and then update the document with a link to the video
GM_xmlhttpRequest({
method: 'GET',
url: searchUrl,
headers: {
'User-Agent': 'Mozilla/5.0 (Windows; U; Windows NT 6.0; en-US; rv:1.9.0.11) Gecko/2009060215 Firefox/3.0.11 (.NET CLR 3.5.30729)',
'Accept': 'text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8',
},
onload: function(responseDetails) {
/**
* From output that looks like this:
* &filename=/videos/2008/20080911pm/5721S4Jd0EB.flv&clip_id=7aX3d-S721-&status=1&preview_type=0&preview_video_id=&preview_clip_id=
* We're taking the filename= portion.
*/
var flvPath = responseDetails.responseText.split('&')[1].split('=')[1];
// Locate the servername specified in the document
var cdnReg = /cdn\d+\.xtube\.com\/e12/;
var cdnSrv = cdnReg.exec(document.body.innerHTML);
var theServer = cdnSrv[0].replace("e12","e13");

/**
* Modify the video's title to include a download link
*/
// Locate the h2, add two non-breaking spaces
var anchorExpr = document.createExpression('//td/h2', null);
var h2 = anchorExpr.evaluate(document, XPathResult.ORDERED_NODE_SNAPSHOT_TYPE, null).snapshotItem(0);
h2.innerHTML += '  ';

// Create a new span and add the opening paren for the link we're about to add
var newSpan = document.createElement('span');
newSpan.innerHTML = '(';

// Create a new link and set the path and text
var newAnchor = document.createElement('a');
newAnchor.href = 'http://' + theServer + flvPath;
newAnchor.innerHTML = 'Download this video';

// Add the link to the span and then add the closing paren
newSpan.appendChild(newAnchor);
newSpan.innerHTML += ')';

// Finally add the span to the h2
h2.appendChild(newSpan);

/* and thats that! */
}
});
}