GSTL Greaser

gistfile1.js

// ==UserScript==
// @name           VLCGOMGreaser
// @namespace      brok3r.org
// @description    Get VLC link from GOMTV SQLive
// @include        http://www.gomtv.net/*
// ==/UserScript==

//

/* Discussion.  10 Jan 2010

    At present time, GomTV has 3 buttons that appear on the *live* site.  Each
    triggers the class method Live.play(), passing in a parameter that dictates
    stream quality.

    Live.play() does some Ajax and creates a URL, stored in the local variable
    "goxUrl".  If you go to this URL, you get an HTML document which contains
    a conspicuous tag, which itself has an attribute that is *another* URL.

    This new URL has, as one of its key/value pairs, a pairing with key
    "LiveAddr".  If you decode the associated value (it's in URL-style
    encoding), you get a URL that you can give to VLC.

 */



// javascript:live.addGox=function(title,url){ alert(url); };void(0);

// html body div#wrapper div#league_mainBody div#chbody_container div#ch_content_container div#livepage_view_1 div#box_viewlive_outter div#sq_test div.box_viewlive_inner a#btn_ch_view_on

// var playBtn = findXPathNode("//*[@id=\"sq_test\"]/div/*[@id=\"btn_ch_view_on\"]");

var playBtn = findXPathNode("//*[@id=\"btn_test_hq\"]");

GM_log(playBtn.href);

playBtn.href = "javascript:live.addGox=function(title,url){ brok3r_processGoxUrl(url); };live.play('SQ');void(0);";


function contentEval(source) {
  // Check for function input.
  if ('function' == typeof source) {
    // Execute this function with no arguments, by adding parentheses.
    // One set around the function, required for valid syntax, and a
    // second empty set calls the surrounded function.
    source = '(' + source + ')();'
  }

  // Create a script node holding this  source code.
  var script = document.createElement('script');
  script.setAttribute("type", "application/javascript");
  script.textContent = source;

  // Insert the script node into the page, so it will run, and immediately
  // remove it to clean up.
  document.body.appendChild(script);
  document.body.removeChild(script);
}

contentEval(function() {
    brok3r_processGoxUrl = function(url) {
	    var client = new XMLHttpRequest();
	    client.open("GET", url, true);

	    client.onreadystatechange = function () {
		    if(client.readyState==4) {
	            var contents = client.responseText;
	            var start = contents.indexOf("LiveAddr=") + "LiveAddr=".length;
	            var end   = contents.indexOf(";\"/");
	            var url   = unescape(contents.substring(start,end));

                	// var insertion = findXPathNode("//*[@id=\"chmenu_title_container\"]");
                	var insertion = findXPathNode("//*[@id=\"mainTitle\"]");
	            insertion.innerHTML += "<a href=\">"+url+"</a>";
		    }
	    }
	    client.send(null);
    };

    findXPathNode = function(xpath, start, doc) {
	    var result = (doc == null ? document : doc).evaluate( xpath
	                                                        , (start == null ? document : start)
	                                                        , null
	                                                        , XPathResult.ORDERED_NODE_SNAPSHOT_TYPE
	                                                        , null);
	    return (result.snapshotLength > 0 ? result.snapshotItem(0) : null);
    };    
})


function findXPathNode(xpath, start, doc) {
	var result = (doc == null ? document : doc).evaluate( xpath
	                                                    , (start == null ? document : start)
	                                                    , null
	                                                    , XPathResult.ORDERED_NODE_SNAPSHOT_TYPE
	                                                    , null);
	return (result.snapshotLength > 0 ? result.snapshotItem(0) : null);
}