Better EdPuzzle
目前为
// ==UserScript==
// @name EdPuzzle+
// @namespace https://github.com/Enchoseon/better-edpuzzle-userscript/raw/main/better-edpuzzle-userscript.user.js
// @version 0.7.2
// @description Better EdPuzzle
// @author Enchoseon
// @include *edpuzzle.com/lti/*
// @include *edpuzzle.com/assignments/*
// @include *edpuzzle.com/media/*
// @include *youtube.com/embed*
// @include *youtube-nocookie.com/embed*
// @run-at document-start
// @grant none
// ==/UserScript==
(function() {
'use strict';
const config = { // Edit this variable to set your own settings!
"speed": 2,
}
// =========
// Speedhack
// =========
function speedhack(mediaSource) {
console.log("Media Source: " + mediaSource);
switch(mediaSource) {
case "youtube":
break;
case "vimeo":
break;
case "vimeo_with_controls":
break;
case "edpuzzle":
break;
case "file":
break;
default:
}
}
if (window != window.top && (window.location.href.includes("youtube.com/embed/") || window.location.href.includes("youtube-nocookie.com/embed/")) && window.location.href.includes("origin=https://edpuzzle.com")) { // YouTube speedhack (sticking this in the speedhack function would require a bunch of postMessage BS to get around CORs. Wish I could just grant myself the permission to access the iframe (e.g. document.getElementsByTagName("iframe")[0].contentWindow.document.getElementsByTagName("video")[0].playbackRate = config.speed;))
window.addEventListener("click", function() {
console.log(window.location.href);
document.getElementsByTagName("video")[0].playbackRate = config.speed;
});
}
// ===============
// Anti Auto-Pause
// ===============
window.addEventListener("load", function() { // Make some properties always return a value of false
const propArr = ["hidden", "mozHidden", "msHidden", "webkitHidden"];
for (var i = 0; i < propArr.length; i++) {
Object.defineProperty(document, propArr[i], function() {
value : false
});
}
});
// =========
// API Stuff
// =========
function interceptAPICall(responseText) { // Read the API call for speedhacking (& debugging).
responseText = JSON.parse(responseText);
console.log("API Call Intercepted:");
console.log(responseText);
var mediaSource = null;
if (responseText.medias) {
mediaSource = responseText.medias[0].source;
} else if (responseText.source) {
mediaSource = responseText.source;
}
window.addEventListener("load", speedhack(mediaSource));
}
function modifyAPICall(responseText) { // Modify the API call to allow skipping.
// Occasionally the API returns a responses w/ stuff in different locations—since there isn't actual documentation, it's kind of hard to understand—so we're going to inefficiently brute force it instead
return responseText.replace(`"allowSkipAhead":false`, `"allowSkipAhead":true`);
}
function getAPIPath() { // Get the API path
var urlPath = window.location.pathname;
var apiPath;
if (urlPath.startsWith("/assignments/")) {
var id = urlPath.replace("/assignments/", "")
.replace("/watch", "");
apiPath = "/api/v3/assignments/" + id;
} else if (urlPath.startsWith("/media/")) {
var id = urlPath.replace("/media/", "");
apiPath = "/api/v3/media/" + id;
}
return apiPath;
}
if (window.location.hostname === "edpuzzle.com") { // Intercept XMLHttpRequests (https://stackoverflow.com/a/41899308) (gets around one-time token for LMS & lets us modify the response)
(function(window) {
var OriginalXHR = XMLHttpRequest;
var XHRProxy = function() {
this.xhr = new OriginalXHR();
function delegate(prop) {
Object.defineProperty(this, prop, {
get: function() {
return this.xhr[prop];
},
set: function(value) {
this.xhr.timeout = value;
}
});
}
delegate.call(this, "timeout");
delegate.call(this, "responseType");
delegate.call(this, "withCredentials");
delegate.call(this, "onerror");
delegate.call(this, "onabort");
delegate.call(this, "onloadstart");
delegate.call(this, "onloadend");
delegate.call(this, "onprogress");
};
XHRProxy.prototype.open = function(method, url, async, username, password) {
var ctx = this;
function applyInterceptors(src) {
ctx.responseText = ctx.xhr.responseText;
for (var i = 0; i < XHRProxy.interceptors.length; i++) {
var applied = XHRProxy.interceptors[i](method, url, ctx.responseText, ctx.xhr.status);
if (applied !== undefined) {
ctx.responseText = applied;
}
}
}
function setProps() {
ctx.readyState = ctx.xhr.readyState;
ctx.responseText = ctx.xhr.responseText;
ctx.responseURL = ctx.xhr.responseURL;
ctx.responseXML = ctx.xhr.responseXML;
ctx.status = ctx.xhr.status;
ctx.statusText = ctx.xhr.statusText;
}
this.xhr.open(method, url, async, username, password);
this.xhr.onload = function(evt) {
if (ctx.onload) {
setProps();
if (ctx.xhr.readyState === 4) {
applyInterceptors();
}
return ctx.onload(evt);
}
};
this.xhr.onreadystatechange = function (evt) {
if (ctx.onreadystatechange) {
setProps();
if (ctx.xhr.readyState === 4) {
applyInterceptors();
}
return ctx.onreadystatechange(evt);
}
};
};
XHRProxy.prototype.addEventListener = function(event, fn) {
return this.xhr.addEventListener(event, fn);
};
XHRProxy.prototype.send = function(data) {
return this.xhr.send(data);
};
XHRProxy.prototype.abort = function() {
return this.xhr.abort();
};
XHRProxy.prototype.getAllResponseHeaders = function() {
return this.xhr.getAllResponseHeaders();
};
XHRProxy.prototype.getResponseHeader = function(header) {
return this.xhr.getResponseHeader(header);
};
XHRProxy.prototype.setRequestHeader = function(header, value) {
return this.xhr.setRequestHeader(header, value);
};
XHRProxy.prototype.overrideMimeType = function(mimetype) {
return this.xhr.overrideMimeType(mimetype);
};
XHRProxy.interceptors = [];
XHRProxy.addInterceptor = function(fn) {
this.interceptors.push(fn);
};
window.XMLHttpRequest = XHRProxy;
XHRProxy.addInterceptor(function(method, url, responseText, status) {
if (url === getAPIPath()) {
interceptAPICall(responseText);
return modifyAPICall(responseText);
}
});
})(window);
}
})();
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