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// ==UserScript==
// @name Invidious Instance Changer
// @namespace InvidiousChanger
// @author Cyberdevil
// @license GPL version 3 or any later version::: https://www.gnu.org/licenses/gpl-3.0.html
// @description Menu UI Invidious instances changer
// @homepageURL https://libregit.spks.xyz/heckyel/book/src/branch/master/scripts-greasemonkey
// @include https://*
// @version 0.0.3
// @grant GM.setValue
// @grant GM.getValue
// @grant GM.xmlhttpRequest
// ==/UserScript==
// Console Style - Debug
let consoleCSS = 'background: #000; color: #00FF00; padding: 0px 7px; border: 1px solid #00FF00; line-height: 16px;';
// BETWEEN HERE and ..
if (GM_getValue('invidious.instances.isUpdating') === true) { return; }
const instancesStr = GM_getValue('invidious.instances');
if (!instancesStr){ // First time fetching instances list.
updateInstances();
return;
}
let instances = instancesStr.split(';');
if (instances.indexOf(window.location.host) < 0) { return; }
// .. BETWEEN HERE is run on every request, so keep it minimal.
let lastUpdated = GM_getValue('invidious.instances.lastUpdate');
let diffHours = (Date.now() - lastUpdated) / (1000 * 60 * 60);
//let diffMins = (Date.now() - lastUpdated) / (1000 * 60);
// Update instances
if (diffHours > 24) {
updateInstances();
}
function updateInstances() {
GM_setValue('invidious.instances.isUpdating', true);
GM_xmlhttpRequest ({
method: 'GET',
url : 'https://instances.invidio.us/instances.json',
onload: function (request) {
if(request.readyState == 4) {
if(request.status == 200) {
processJson(JSON.parse(request.responseText));
saveInstances();
}
GM_setValue('invidious.instances.isUpdating', false);
}
}
});
}
function processJson(json) {
let newList = [];
for (i in json) {
if (json[i][1]['type'] != 'https') {
continue;
}
if (!json[i][1]['monitor']) {
continue;
}
if( json[i][1]['monitor']['statusClass'] != 'success') {
continue;
}
newList.push(json[i][1]['uri']);
console.log(json[i][0]);
}
instances = newList;
}
function saveInstances() {
let str = '';
for (i in instances) {
let url = new URL(instances[i]);
str = str.concat(url.host).concat(";");
console.log(url.host);
}
str = str.substr(0,str.length-1)
console.log(str);
GM_setValue('invidious.instances.lastUpdate', Date.now());
GM_setValue('invidious.instances', str);
}
function getRandomInstance() {
let newInstances = instances
newInstances.splice (newInstances.indexOf(parsedUrl.host), 1); // remove current instance.
let random = Math.floor(Math.random() * newInstances.length)
return newInstances[Math.floor(Math.random() * newInstances.length)];
}
function generateRandomUrl(args) {
return generateUrl(getRandomInstance(), args);
}
function generateUrl(host, args) {
let url = "https://".concat(host.concat("/"));
url = url.concat(args);
return url;
}
// --- UI stuff
const parsedUrl = new URL(window.location);
// -- UI methods
function go() {
// Change instance
const args = parsedUrl.pathname.substr(1, parsedUrl.pathname.length).concat(parsedUrl.search);
const url = generateUrl(instanceSelect.item(instanceSelect.selectedIndex).text, args);
replaceUrl(url);
}
function random() {
// Change to random instance
const args = parsedUrl.pathname.substr(1, parsedUrl.pathname.length).concat(parsedUrl.search);
const url = generateRandomUrl(args);
replaceUrl(url);
}
function replaceUrl(url) {
window.location.replace(url);
}
// -- UI elements
// - Main div
let mainDiv = document.createElement("div");
mainDiv.style.width = "200px";
mainDiv.style.position = "fixed";
mainDiv.style.top = 0;
// - Combobox
let instanceSelect = document.createElement("select");
instanceSelect.style.color = "#fff";
instanceSelect.style.background = "#232323";
instanceSelect.style.border = "1px solid #a0a0a0";
for (i in instances) {
if (instances[i] == parsedUrl.host) {
// Skip current instance
continue;
}
let option = document.createElement("option");
option.text = instances[i];
instanceSelect.add(option);
}
// - Go button
let goButton = document.createElement("input");
goButton.style.color = "#fff";
goButton.style.background = " #232323";
goButton.style.border = "1px solid #a0a0a0";
goButton.setAttribute("type", "button");
goButton.setAttribute("value", "Go");
goButton.addEventListener("click", go, false);
// - Random button
let randomButton = document.createElement("input");
randomButton.style.color = "#fff";
randomButton.style.background = " #232323";
randomButton.style.border = "1px solid #a0a0a0";
randomButton.setAttribute("type", "button");
randomButton.setAttribute("value", "Random");
randomButton.addEventListener("click", random, false);
// - Add stuff
mainDiv.appendChild(instanceSelect);
mainDiv.appendChild(goButton);
mainDiv.appendChild(randomButton);
document.body.appendChild(mainDiv);
function statuscheck(){
// Console Feedback
console.log("%cUSERSCRIPT | " + GM_info.script.name + " " + GM_info.script.version + " | successfully initialized", consoleCSS);
}
statuscheck();
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