Adds a button to kickass to copy magnet link and open transmission web interface

kat_magnet_pi.user.js

// ==UserScript==
// @name         kat.cr magnet link fixer
// @namespace    http://tampermonkey.net/
// @version      0.1
// @description  construct a better magnet link
// @author       You
// @match        https://kat.cr/*
// @grant        GM_setClipboard
// @grant        GM_openInTab
// ==/UserScript==
/* jshint -W097 */
'use strict';

var piLink = 'http://192.168.1.5:9091/transmission/web/';

var trackerList = document.getElementById('utorrent_textarea').textContent;
var torrentId = document.getElementById('report_button').href;
trackerList = trackerList.replace(/\s+/g,' ');
torrentId = torrentId.split('/')[5];
var trackers = trackerList.split(' ');
console.log('id : ' + torrentId);
console.log('list : ' + trackerList);
var magnetLink = 'magnet:?xt=urn:btih:'+torrentId;
for(var i = 0; i < trackers.length; i++){
    var tracker = trackers[i];
    magnetLink = magnetLink + '&tr=' + tracker;
}
console.log(magnetLink);

var buttonContainer = document.getElementsByClassName('goodFake');
var piButton = document.createElement('a');
piButton.href = piLink;
piButton.target = '_blank';
piButton.onclick = function() {GM_setClipboard (magnetLink, "{ type: 'text', mimetype: 'text/plain'}");};
addGlobalStyle('.goodFake { width: 114px; }');
piButton.appendChild(document.createTextNode('Send to Pi'));
buttonContainer[0].appendChild(piButton);

var allLinks = document.getElementsByTagName('a');
for (var i = 0; i < allLinks.length; i++)
	if(allLinks[i].title == 'Magnet link')
		allLinks[i].href = magnetLink;

function addGlobalStyle(css) {
    var head, style;
    head = document.getElementsByTagName('head')[0];
    if (!head) { return; }
    style = document.createElement('style');
    style.type = 'text/css';
    style.innerHTML = css;
    head.appendChild(style);
}