JSONopto.user.js

// ==UserScript==
// @name        JSONopto
// @namespace   https://bikodbg.com/
// @match       https://*.panopto.eu/Panopto/Pages/Viewer.aspx?id=*
// @grant       GM_registerMenuCommand
// @grant       GM_xmlhttpRequest
// @grant       GM_setClipboard
// @version     1.0
// @author      Michael Bikovitsky
// @description Extracts the Panopto video JSON
// @noframes
// @homepageURL https://gist.github.com/mbikovitsky/761d3a61a52aaa189ffcf1dfda2a47c9
// ==/UserScript==

function getJson(onSuccess) {
  const windowUrl = new URL(window.location.href);
  
  const id = windowUrl.searchParams.get("id");
  if (!id) {
    alert("Weird Panopto URL, can't get ID");
    return;
  }
  
  GM_xmlhttpRequest({
    url: new URL("/Panopto/Pages/Viewer/DeliveryInfo.aspx", windowUrl),
    method: "POST",
    headers: {
      "Content-Type": "application/x-www-form-urlencoded"
    },
    responseType: "json",
    data: `deliveryId=${id}&responseType=json`,
    onload: function (responseObject) {
      onSuccess(responseObject.response);
    },
    onerror: function () {
      alert("Failed retrieving JSON");
    }
  });
}

GM_registerMenuCommand("Get JSON", function () {
  getJson(function (response) {
    GM_setClipboard(JSON.stringify(response));
    alert("JSON copied to clipboard");
  });
});

GM_registerMenuCommand("Get podcast URL", function () {
  getJson(function (response) {
    GM_setClipboard(response.Delivery.PodcastStreams[0].StreamUrl);
    alert("Podcast URL copied to clipboard");
  });
});