Initial commit

README.md

+# BBB Echotest Autojoin - Userscript
+## What does it do?
+
+This userscript automatically accepts the BBB Echotest and also ensures that the microphone is muted 
+when joining. This helps with the microphone often being unmuted when joining breakout rooms.
+
+While the abomination commonly refered to as "echotest" can't be fully bypassed (yet), this at least 
+removes the need to manually press the accept button.
+
+## How can I use it?
+
+This project is implemented as a userscript which means a userscript manager is needed to use it. The code was 
+tested with [Tampermonkey](https://www.tampermonkey.net) on firefox but should work on every browser with any 
+userscript plugin.
+
+
+### Install and use with tampermonkey
+
+1. Install tampermonkey from [tampermonkey.net](https://www.tampermonkey.net)
+2. Install the userscript by clicking [echotest autojoin userscript](https://code.fbi.h-da.de/istddmue2/bbb-echotest-autojoin-userscript/-/raw/master/bbb-echotest-autojoin.user.js). This should prompt the installation.
+3. __Make sure to always look at the code before installing userscripts__
+4. Profit

bbb-echotest-autojoin.user.js

+// ==UserScript==
+// @name         BBB Echotest Autojoin
+// @version      0.1
+// @website      https://code.fbi.h-da.de/istddmue2/bbb-echotest-autojoin-userscript
+// @downloadURL  https://code.fbi.h-da.de/istddmue2/bbb-echotest-autojoin-userscript/-/raw/master/bbb-echotest-autojoin.user.js
+// @updateURL    https://code.fbi.h-da.de/istddmue2/bbb-echotest-autojoin-userscript/-/raw/master/bbb-echotest-autojoin.user.js
+// @description  Automatically accept the echotest and automatically mute after connect
+// @author       Daniel Müller
+// @match        https://*.h-da.de/html5client/join*
+// @grant        none
+// ==/UserScript==
+
+async function sleep(ms) {
+    await new Promise(r => setTimeout(r, ms));
+}
+
+function getEchotestAcceptButton() {
+    let selector = "span[class^=echoTest] > button > span[class*=success]";
+    return document.querySelector(selector)?.parentElement;
+}
+
+function getMuteButton() {
+    return document.querySelector("button > span > i[class*=icon-bbb-unmute]")?.parentElement?.parentElement;
+}
+
+function getUnmuteButton() {
+    return document.querySelector("button > span > i[class*=icon-bbb-mute]")?.parentElement?.parentElement;
+}
+
+function isMuted() {
+    if (getMuteButton() != null) return false;
+    if (getUnmuteButton() != null) return true;
+    return null;
+}
+
+(async function() {
+    'use strict';
+
+    let waitTime = 100;
+
+    // Loop to catch reconnects without reloading the page
+    while (true) {
+
+        // Wait until the echotest accept button shows up
+        while (getEchotestAcceptButton() == null) {
+            await sleep(waitTime);
+        }
+
+        getEchotestAcceptButton().click();
+
+        // Ensure that the microphone is muted after joining
+        while (isMuted() != true) {
+            getMuteButton().click();
+            await sleep(100);
+        }
+
+        // Increase the waitTime after the initial connection
+        waitTime = 500;
+        await sleep(waitTime);
+
+    }
+
+})();
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