// ==UserScript==
// @name        Original Content
// @namespace   http://xmine128.tk/gm/original-content/
// @description Automatically redirect content stealing websites to their original counterparts
// @require     https://cdnjs.cloudflare.com/ajax/libs/xregexp/2.0.0/xregexp-min.js
// @license     GPL-3.0+
// @include     *://*.bigresource.com/*
// @include     *://*.techforumnetwork.com/*
// @include     *://techforumnetwork.com/*
// @include     *://*.linuxine.com/story/*
// @include     *://linuxine.com/story/*
// @include     *://*.forumsee.com/*
// @include     *://forumsee.com/*
// @include     *://*.bighow.net/*
// @include     *://bighow.net/*
// @include     *://*.techassistbox.com/*
// @include     *://techassistbox.com/*
// @include     *://*.youku.io/*
// @include     *://youku.io/*
// @icon        http://xmine128.tk/gm/original-content/icon.jpg
// @version     1.1.3
// @grant       GM_xmlhttpRequest
// @run-at      document-start
// ==/UserScript==
'use strict';
/**
* The icon has been released by the user "Nisha A" on Flickr under the CC-BY license
*
* Image on Flickr: https://www.flickr.com/photos/samiksha/445070705/sizes/o/in/photostream/
* Created by user: https://www.flickr.com/photos/samiksha/
*/
const URL = window.location.href;
/**
* Call the given callback function at the given time during page load
*
* Note: This function assumes that it is being called during "document-start"!
*
* @param {Function} callback
*        The function to call
* @param {String}   run_at
*        During what stage of the page load the function should be called ("document-start", "document-end" or "load")
* @param {Object}   ...
*        Additional parameters to pass to the callback function
*/
function _callback_run_at(callback, run_at)
{
// Read the additonal parameters
var params = Array.prototype.slice.call(arguments, 2);
switch(run_at) {
case 'document-start':
Function.prototype.apply.call(callback, null, params);
break;
case 'load':
window.addEventListener("load", function()
{
Function.prototype.apply.call(callback, null, params);
}, false);
break;
default:
document.addEventListener("DOMContentLoaded", function()
{
Function.prototype.apply.call(callback, null, params);
}, false);
}
}
/**
* Process a single URL rewrite rule
*
* If `rewriter` is a function then it will receive the following parameters:
*  - URL:    The URL of the current page
*  - r###lt: The r###lt of the regular expression matching operation
*
* @param {RegExp|String}   regexp
*        The regular expression that must be match by the current page URL
* @param {Function|String} rewriter
*        A function or XRegExp rewrite string used for replacing the URL
*/
function rule_url(regexp, rewriter)
{
var r###lt = URL.match(regexp);
if(r###lt) {
var href = null;
if(typeof(rewriter) == 'function') {
href = rewriter(URL, r###lt);
} else {
// Rewrite URL using XRegExp :-)
href = XRegExp.replace(URL, regexp, rewriter);
}
// Prevent page load
//TODO: Get this to do anything more blanking the page
var interval = window.setInterval(function()
{
document.documentElement.innerHTML = "";
}, 1);
document.addEventListener("DOMContentLoaded", function(event)
{
clearInterval(interval);
});
// Rewrite URL
window.location.replace(href);
}
}
/**
* Follow a hyperlink on a page
*
* @param {RegExp|String}   regexp
*        The regular expression that must be match by the current page URL
* @param {Function|String} selector
*        A function or XRegExp rewrite string used to generated to selector of the element to click on
* @param {String}         [run_at="document-end"]
*        When to perform the action ("document-start", "document-end" or "load")
*/
function rule_link(regexp, selector, run_at)
{
var r###lt = URL.match(regexp);
if(r###lt) {
if(typeof(selector) == 'function') {
selector = selector(URL, r###lt);
} else {
// Rewrite URL using XRegExp
selector = XRegExp.replace(URL, regexp, selector);
}
// Click at the correct stage during page load
_callback_run_at(function(selector)
{
window.location.replace(document.querySelector(selector).href);
}, (run_at || "document-end"), selector);
}
}
/**
* Process a single URL action rule
*
* If `callback` is a function then it will receive the following parameters:
*  - URL:    The URL of the current page
*  - r###lt: The r###lt of the regular expression matching operation
* If `callback` is a string then that string will be executed in the page's context
*
* @param {RegExp|String}   regexp
*        The regular expression that must be match by the current page URL
* @param {Function|String} callback(URL)
*        The function to call when the page URL matches the given regex
* @param {String}         [run_at="document-end"]
*        When to perform the action ("document-start", "document-end" or "load")
*/
function rule_action(regexp, callback, run_at)
{
var r###lt = URL.match(regexp);
if(r###lt) {
// Create wrapper function for string callback
if(typeof(callback) == "string") {
var code = callback;
callback = function()
{
window.location.href = "javascript:" + code;
}
}
// Execute callback function at the correct stage during page load
_callback_run_at(callback, (run_at || "document-end"), URL, r###lt);
}
}
rule_url(/^http[s]?:\/\/([^.]+)\.bigresource\.com\/(?:[^-]+[-])+[-]?([A-Za-z0-9]{9,})\.html$/i,     "http://$1.bigresource.com/Track/$2/");
rule_url(/^http[s]?:\/\/(?:[^.]+\.)*bighow\.net\/(\d+)-([^.]+)\.html$/i,                            "http://bighow.net/track/$1/$2");
rule_link(/^http[s]?:\/\/(?:[^.]+\.)*linuxine\.com\/story\/.+$/i, "a.pviewlink");
rule_link(/^http[s]?:\/\/(?:[^.]+\.)*forumsee\.com\/.+$/i,        "a.bigLink");
rule_link(/^http[s]?:\/\/(?:[^.]+\.)*youku\.io\/.+$/i,            "#a_text > .pub_info > a");
rule_action(/^http[s]?:\/\/(?:[^.]+\.)*techforumnetwork\.com\/techqns\/[a-z0-9-]+\/$/i, "readPost()", "document-end");
rule_action(/^http[s]?:\/\/(?:[^.]+\.)*techassistbox\.com\/[A-Za-z0-9-]+_\d+[.]html$/i, function()
{
var id = document.querySelector("#answerQuestion > button").onclick.toString().match(/v_th\(['"]([A-Za-z0-9]+)['"]\)/i)[1];
window.location.replace("http://www.techassistbox.com/goto/" + id + "/");
});