Link Checker. Hit escape to check whether one-click hoster links are online or offline.
Ajankohdalta
// ==UserScript==
// @name Highlight OCH links
// @namespace cuzi
// @oujs:author cuzi
// @description Link Checker. Hit escape to check whether one-click hoster links are online or offline.
// @icon https://greasyfork.org/system/screenshots/screenshots/000/003/868/original/och.png
// @compatible firefox
// @compatible chrome Tampermonkey. Allow all domains on first run.
// @homepageURL https://openuserjs.org/scripts/cuzi/Highlight_OCH_links
// @require https://openuserjs.org/src/libs/cuzi/RequestQueue.js
// @require https://openuserjs.org/src/libs/cuzi/OCH_List.js
// @grant GM_xmlhttpRequest
// @connect *
// @version 6
// @include *
// @exclude *.yahoo.*
// @exclude *.google.*
// @exclude *.youtube.*
// @exclude *.bing.com*
// @exclude *duckduckgo.com*
// ==/UserScript==
"use strict";
// Maximal number of links that are checked (per website)
const MAXREQUESTS = 1000;
// Maximal number of links that are checked in parallel (per website)
const MAXPARALLELCONNECTIONS = 16;
// Maximal number of DOM nodes that are examined. Decrease this number on slow machines.
const MAXTEXTNODES = 10000;
/*
// Export
var mypatterns = [];
var mynames = [];
var myurls = [];
for(var key in OCH) {
var o = OCH[key];
if(o.multi.length > 0) {
mypatterns.push(o.pattern.toString());
mynames.push("'"+key+"'");
myurls.push(" - ["+o.title+"]("+o.homepage+")");
}
}
alert(mypatterns.join(",\n"));
alert(mynames.join(",\n"));
alert(myurls.join("\n"));
*/
var links = []; // [ { hoster: "", url: "", element: DOMNode} , ... ]
var rq = new RequestQueue(MAXPARALLELCONNECTIONS,MAXREQUESTS);
function linkOffline(link) {
link.element.style.backgroundColor = "rgba(255, 0, 20, 0.5)";
link.element.dataset.linkValidatedAs = "offline";
}
function linkOnline(link) {
link.element.style.backgroundColor = "rgba(70, 255 ,0, 0.5)";
link.element.dataset.linkValidatedAs = "online";
}
function linkWaiting(link) {
link.element.style.backgroundColor = "rgba(255, 150, 80, 0.4)";
}
function handleResult(link,result,errorstring) {
if(result === 1) {
linkOnline(link);
} else if(result === 0) {
linkOffline(link);
} else if(result == -1) {
link.element.style.backgroundColor = "blue";
link.element.title = errorstring;
console.log(errorstring);
} else {
console.log("handleResult(link,result,errorstring) wrong resultcode: "+result);
}
}
function matchHoster(str) {
// Return name of first hoster that matches, otherwise return false
for(var name in OCH) {
for(var i = 0; i < OCH[name].pattern.length; i++) {
if(OCH[name].pattern[i].test(str)) {
return name;
}
}
}
return false;
}
function findLinks() {
links = [];
// Normalize hoster object: Replace single patterns with arrays [RegExp]
for(var name in OCH) {
if(!Array.isArray(OCH[name].pattern)) {
OCH[name].pattern = [ OCH[name].pattern ];
}
}
// Find all text nodes that contain "http://"
var nodes = [];
var walk = document.createTreeWalker(document.body,NodeFilter.SHOW_TEXT,{ acceptNode: function(node) {
if(node.parentNode.href || node.parentNode.parentNode.href || node.parentNode.parentNode.parentNode.href)
return NodeFilter.FILTER_REJECT;
if(node.parentNode.tagName == "TEXTAREA" || node.parentNode.parentNode.tagName == "TEXTAREA")
return NodeFilter.FILTER_REJECT;
if(node.data.match(/(\s|^)https?:\/\/\w+/))
return NodeFilter.FILTER_ACCEPT;
} },false);
var node = walk.nextNode();
while(node) {
nodes.push(node);
node = walk.nextNode();
}
// For each found text nodes check whether the URL is a valid OCH URL
for(var i = 0; i < nodes.length && i < MAXTEXTNODES; i++) {
if("" === nodes[i].data) {
continue;
}
var httpPosition = nodes[i].data.indexOf("http");
if(httpPosition == -1) {
continue;
}
var urlnode;
if(httpPosition > 0) {
urlnode = nodes[i].splitText(httpPosition); // Split leading text
} else {
urlnode = nodes[i];
}
var stop = urlnode.data.match(/$|\s/)[0]; // Find end of URL
if("" !== stop) { // If empty string, we found $ end of string
var nextnode = urlnode.splitText(urlnode.data.indexOf(stop)); // Split trailing text
if("" !== nextnode.data && nextnode.data.indexOf("http") != -1) {// The trailing text might contain another URL
nodes.push(nextnode);
}
}
// Check whether the URL is a OCH. If so, create an <a> element
var url = urlnode.data;
var mh = matchHoster(url);
if(mh !== false) {
var a = document.createElement("a");
a.href = url;
a.appendChild(urlnode.parentNode.replaceChild(a, urlnode));
links.push( {
'hoster' : mh,
'url' : url,
'element' : a
});
}
}
// Find actual <a> links
var al = document.getElementsByTagName('a');
for(var i = 0; i < al.length; i++) {
if(al[i].dataset.linkValidatedAs) {
continue; // Link was already checked
}
var mH = matchHoster(al[i].href);
if(mH !== false) {
links.push( {
'hoster' : mH,
'url' : al[i].href,
'element' : al[i]
});
}
}
return links.length;
}
function checkLinks() {
// Check all links by calling the hoster's check function
for(var i = 0; i < links.length; i++) {
if(links[i] && OCH[links[i].hoster].check && typeof(OCH[links[i].hoster].check) === 'function') {
linkWaiting(links[i]);
OCH[links[i].hoster].check(links[i],handleResult);
}
}
}
(function() {
var doit = true;
document.addEventListener('keydown',function(ev) {
if (ev.keyCode == 27) {
if(doit) {
// Highlight links and check them
var n = findLinks();
if(n > 0 )
checkLinks();
} else {
// Abort all requests
rq.abort();
}
doit = !doit;
}
},false);
})();