HanoiCollab client for Second Generation HanoiCollab server
// ==UserScript==
// @name HanoiCollab_v2
// @namespace https://trungnt2910.github.io/
// @version 0.0.2
// @description HanoiCollab client for Second Generation HanoiCollab server
// @author trungnt2910
// @license MIT
// @icon https://www.google.com/s2/favicons?domain=edu.vn
// @connect *
// @grant GM_xmlhttpRequest
// @grant GM_getValue
// @grant GM_setValue
// @require http://ajax.googleapis.com/ajax/libs/jquery/1.7.2/jquery.min.js
// @require https://cdnjs.cloudflare.com/ajax/libs/microsoft-signalr/6.0.2/signalr.min.js
// @match https://forms.office.com/Pages/ResponsePage.aspx?*
// @match https://shub.edu.vn/*
// @match https://azota.vn/*
// @match https://quilgo.com/*
// @match https://docs.google.com/forms/*
// ==/UserScript==
String.prototype.getHashCode = function() {
var hash = 0, i, chr;
if (this.length === 0) return hash;
for (i = 0; i < this.length; i++) {
chr = this.charCodeAt(i);
hash = ((hash << 5) - hash) + chr;
hash |= 0; // Convert to 32bit integer
}
return hash.toString();
};
var GUID = function () {
//------------------
var S4 = function () {
return(
Math.floor(
Math.random() * 0x10000 /* 65536 */
).toString(16)
);
};
//------------------
return (
S4() + S4() + "-" +
S4() + "-" +
S4() + "-" +
S4() + "-" +
S4() + S4() + S4()
);
};
let HanoiCollabGlobals = {};
HanoiCollabGlobals.WindowId = GUID();
function HanoiCollab$(obj)
{
if (typeof obj === "string")
{
return $(HanoiCollabGlobals.Document).contents().find(obj);
}
return $(obj);
}
var entityMap = {
'&': '&',
'<': '<',
'>': '>',
'"': '"',
"'": ''',
'/': '/',
'`': '`',
'=': '='
};
function EscapeHtml(string)
{
return String(string).replace(/[&<>"'`=\/]/g, function (s)
{
return entityMap[s];
});
}
async function ServerPrompt()
{
var server = prompt("Enter your HanoiCollab server address", (HanoiCollabGlobals.Server) ? HanoiCollabGlobals.Server : "https://hanoicollab.herokuapp.com/");
if (!server.endsWith("/"))
{
server += "/";
}
await GM_setValue("HanoiCollabServer", server);
HanoiCollabGlobals.Server = server;
return server;
}
async function LoginPopup(displayText)
{
if (elem = HanoiCollabGlobals.Document.getElementById("hanoicollab-login-popup-container"))
{
return await HanoiCollabGlobals.LoginPopupPromise;
}
HanoiCollabGlobals.LoginPopupPromise = new Promise(async function(resolve, reject)
{
var oldUsername = await GM_getValue("HanoiCollabUsername", "");
displayText = displayText ? displayText : "Please sign in to use HanoiCollab";
//--- Use jQuery to add the form in a "popup" dialog.
HanoiCollab$(HanoiCollabGlobals.Document.body).append (`
<div id="hanoicollab-login-popup-container" class="hanoicollab-basic-container">
<p id="hanoicollab-login-popup-background" style="position:fixed;top:0;left:0;right:0;bottom:0;background-color:rgba(0,0,0,0.9);z-index:9998;"></p>
<div id="hanoicollab-login-popup" style="position:fixed;top:50%;left:50%;transform:translate(-50%,-50%);width:50%;padding:2em;color:white;background-color:rgba(0,127,255,0.75);border-radius:1ex;z-index:9999;">
<p class="hanoicollab-basic-container">${displayText}</p>
<p class="hanoicollab-basic-container">Your current HanoiCollab server: <a class="hanoicollab-basic-container" href="${HanoiCollabGlobals.Server}" style="color:orange;">${HanoiCollabGlobals.Server}</a>.</p>
<p class="hanoicollab-basic-container">Press Alt+S to change your server.</p>
<input class="hanoicollab-basic-container" type="text" id="hanoicollab-username" style="color:black;" value="${oldUsername}">
<input class="hanoicollab-basic-container" type="password" id="hanoicollab-password" style="color:black;" value="">
<p class="hanoicollab-basic-container" id="hanoicollab-login-status">Please enter your HanoiCollab username and password.</p>
<button class="hanoicollab-button" id="hanoicollab-login-button">Login</button>
<button class="hanoicollab-button" id="hanoicollab-register-button">Register</button>
<button class="hanoicollab-button" id="hanoicollab-close-button">Later</button>
<button class="hanoicollab-button" id="hanoicollab-close-suppress-button">Don't bother me today</button>
</div>
</div>
`);
function EnableFields()
{
HanoiCollab$("#hanoicollab-username").prop("disabled", false);
HanoiCollab$("#hanoicollab-password").prop("disabled", false);
}
function DisableFields()
{
HanoiCollab$("#hanoicollab-username").prop("disabled", true);
HanoiCollab$("#hanoicollab-password").prop("disabled", true);
}
HanoiCollab$("#hanoicollab-login-button").click(function()
{
var username = HanoiCollab$("#hanoicollab-username").val();
var password = HanoiCollab$("#hanoicollab-password").val();
HanoiCollab$("#hanoicollab-login-status").text("Logging in...");
DisableFields();
GM_xmlhttpRequest({
method: "POST",
url: HanoiCollabGlobals.Server + "api/Accounts/login",
data: JSON.stringify({
Name: username,
Password: password
}),
headers: {
"Content-Type": "application/json"
},
onload: function(response)
{
if (response.status === 200)
{
var data = JSON.parse(response.responseText);
if (data.Token)
{
GM_setValue("HanoiCollabUsername", username);
GM_setValue("HanoiCollabIdentity", JSON.stringify(data));
HanoiCollab$("#hanoicollab-login-popup-container").remove();
HanoiCollabGlobals.Identity = data;
if (HanoiCollabGlobals.OnIdentityChange)
{
HanoiCollabGlobals.OnIdentityChange();
}
resolve(data);
}
else
{
HanoiCollab$("#hanoicollab-login-status").text("Error: Invalid response from server.");
EnableFields();
}
}
else
{
HanoiCollab$("#hanoicollab-login-status").text("Error: " + response.statusText);
EnableFields();
}
},
onerror: function(response)
{
HanoiCollab$("#hanoicollab-login-status").text("Error: " + response.statusText);
EnableFields();
}
});
});
HanoiCollab$("#hanoicollab-register-button").click(function()
{
var username = HanoiCollab$("#hanoicollab-username").val();
var password = HanoiCollab$("#hanoicollab-password").val();
HanoiCollab$("#hanoicollab-login-status").text("Registering...");
DisableFields();
GM_xmlhttpRequest({
method: "POST",
url: HanoiCollabGlobals.Server + "api/Accounts/register",
data: JSON.stringify({
Name: username,
Password: password
}),
headers: {
"Content-Type": "application/json"
},
onload: function(response) {
var data = JSON.parse(response.responseText);
HanoiCollab$("#hanoicollab-login-status").text(`${data.Status}: ${data.Message}`);
EnableFields();
},
onerror: function(response) {
HanoiCollab$("#hanoicollab-login-status").text("Error: " + response.statusText);
}
});
});
HanoiCollab$("#hanoicollab-close-button").click(function()
{
HanoiCollab$("#hanoicollab-login-popup-container").remove();
reject("User cancelled");
});
HanoiCollab$("#hanoicollab-close-suppress-button").click(function()
{
HanoiCollab$("#hanoicollab-login-popup-container").remove();
reject("User cancelled");
});
});
return await HanoiCollabGlobals.LoginPopupPromise;
}
async function SetupServer()
{
var storedServer = await GM_getValue("HanoiCollabServer", null);
if (!storedServer)
{
storedServer = ServerPrompt();
}
HanoiCollabGlobals.Server = storedServer;
return storedServer;
}
async function SetupIdentity()
{
var storedIdentity = JSON.parse(await GM_getValue("HanoiCollabIdentity", null));
if (!storedIdentity || !storedIdentity.Token || !storedIdentity.Expiration || Date.parse(storedIdentity.Expiration) <= Date.now())
{
return await LoginPopup();
}
HanoiCollabGlobals.Identity = storedIdentity;
return HanoiCollabGlobals.Identity;
}
function SetupKeyBindings()
{
HanoiCollabGlobals.Document.addEventListener('keyup', function (e)
{
if (e.altKey && e.key === 's')
{
ServerPrompt();
}
if (e.altKey && e.key === 'l')
{
LoginPopup();
}
}, false);
}
async function GetToken()
{
var identity = HanoiCollabGlobals.Identity;
if (Date.parse(identity.expiration) <= Date.now())
{
await LoginPopup("Session expired. Please sign in to continue using HanoiCollab.");
}
return HanoiCollabGlobals.Identity.Token;
}
async function SetupChatConnection()
{
var connection = new signalR
.HubConnectionBuilder()
.withUrl(HanoiCollabGlobals.Server + "hubs/chat", { accessTokenFactory: GetToken })
.build();
await connection.start();
connection.DeliberateClose = false;
connection.onclose(function()
{
if (connection.DeliberateClose)
{
return;
}
console.log("Reconnecting to chat channel...");
var handle = setInterval(async function()
{
await connection.start();
await HanoiCollabGlobals.ChatConnection.invoke("JoinChannel", HanoiCollabGlobals.Channel);
clearInterval(handle);
}, 5000);
});
HanoiCollabGlobals.ChatConnection = connection;
return connection;
}
async function SetupChatUserInterface()
{
HanoiCollab$("#hanoicollab-chat-container").remove();
HanoiCollab$("body").append (`
<div id="hanoicollab-chat-container" class="hanoicollab-basic-container" style="position:fixed;right:16px;bottom:16px;height:20%;width:30%;border-radius:1ex;background-color:rgba(0,127,255,0.9);z-index:9997;user-select:text">
<div id="hanoicollab-chat-messages" style="width:100%;height:90%;overflow:auto;"></div>
<input type="text" autocomplete="off" id="hanoicollab-chat-input" style="width:100%;bottom:-10%;position:absolute">
</div>
`);
HanoiCollab$("#hanoicollab-chat-input").keyup(async function(e)
{
if (e.key === "Enter")
{
var message = HanoiCollab$("#hanoicollab-chat-input").val();
// Prevent empty message spam.
if (message)
{
HanoiCollab$("#hanoicollab-chat-input").val("");
await HanoiCollabGlobals.ChatConnection.invoke("SendMessage", HanoiCollabGlobals.Channel, message);
e.preventDefault();
}
}
});
HanoiCollabGlobals.ChatConnection.on("ReceiveMessage", function(name, message)
{
HanoiCollab$("#hanoicollab-chat-messages").append(`<p class="hanoicollab-basic-container" style="user-select:text;word-wrap: break-word;"><b>${EscapeHtml(name)}</b>: ${EscapeHtml(message)}</p>`);
HanoiCollab$("#hanoicollab-chat-messages").animate({scrollTop: HanoiCollab$("#hanoicollab-chat-messages").prop("scrollHeight")}, 1000);
})
await HanoiCollabGlobals.ChatConnection.invoke("JoinChannel", HanoiCollabGlobals.Channel);
HanoiCollabGlobals.Document.addEventListener('keyup', function (e)
{
if (e.altKey && e.key === 'c')
{
HanoiCollab$("#hanoicollab-chat-container").toggle();
}
}, false);
}
async function WaitForDocumentReady()
{
if (document.readyState === 'complete')
{
return;
}
await new Promise(function(resolve, reject)
{
$("document").ready(function()
{
resolve();
});
});
}
async function TerminateChatConnection()
{
if (HanoiCollabGlobals.ChatConnection)
{
await HanoiCollabGlobals.ChatConnection.invoke("LeaveChannel", HanoiCollabGlobals.Channel);
HanoiCollabGlobals.ChatConnection.DeliberateClose = true;
await HanoiCollabGlobals.ChatConnection.stop();
HanoiCollabGlobals.ChatConnection = null;
}
}
async function Download(url)
{
return await new Promise(function (resolve, reject)
{
GM_xmlhttpRequest({
method: "GET",
url: url,
onload: function(r)
{
resolve(r);
},
onerror: function(r)
{
resolve(r);
}
});
});
}
HanoiCollabScriptPatches = {
"shub.edu.vn": function(src, code)
{
if (src.includes("_app"))
{
// This should block monitor action INSIDE THE IFRAME, however we're not using it because:
// - It does NOT block monitor action in the main script.
// - It takes a long time to apply this patch.
// code = code.replace(`key:"add",value:function(e,t){this.userTestId`, `key:"add",value:function(e,t){console.log("Blocked monitor action");console.log(e);return;this.userTestId`)
code = code.replace(`component:"a",href:n`, `component:"a",href:(function(n){if(!window.HanoiCollabExposedVariables)window.HanoiCollabExposedVariables=[];if(!window.HanoiCollabExposedVariables.ExposedFiles)window.HanoiCollabExposedVariables.ExposedFiles=[];window.HanoiCollabExposedVariables.ExposedFiles.push(n);return n;})(n)`)
}
return code;
},
"azota.vn": function(src, code)
{
if (src.includes("main") || src.includes("runtime"))
{
code = code.replace(/document\.head\.appendChild/g, `(function(child)
{
if (child.tagName !== "SCRIPT")
{
document.head.appendChild(child);
return;
}
if (child.src && child.src.includes("es2015"))
{
var request = new XMLHttpRequest();
request.open("GET", child.src, false);
request.send(null);
var scriptContent = request.responseText;
scriptContent = scriptContent.replace(/constructor\\([a-zA-Z,]*?\\){/gm, (match) => {return match + "try{if(!window.HanoiCollabExposedVariables)window.HanoiCollabExposedVariables=[];HanoiCollabExposedVariables.push(this);}catch(e){console.log(e);}"});
var scriptBlob = new Blob([scriptContent], {type: "application/javascript"});
var scriptURL = URL.createObjectURL(scriptBlob);
child.removeAttribute("integrity");
child.src = scriptURL;
}
document.head.appendChild(child);
})`
);
code = code.replace(/sendMonitorAction\([A-Za-z,]*?\){/, match => match + `console.log("Blocked monitor action.");return;`);
code = code.replace(/trackInfos:[^,}]*/, `trackInfos: null`);
code = code.replace(/resultTrack:[^,}]*/, `resultTrack: null`);
}
return code;
},
"forms.office.com": function(src, code)
{
if (src.includes("page.min"))
{
code = code
.replace("return(e=e||c.length!==Object.keys(n).length)?i:n", "return(e=e||c.length!==Object.keys(n).length)?(function(i){window.HanoiCollabExposedVariables=window.HanoiCollabExposedVariables||[];window.HanoiCollabExposedVariables.FormState=i;return i})(i):n")
.replace("function f(n){var r=(0,o.cF)", "function f(n){window.HanoiCollabExposedVariables=window.HanoiCollabExposedVariables||[];window.HanoiCollabExposedVariables.UpdateLocalStorage=f;var r=(0,o.cF)");
}
return code;
},
"quilgo.com": function(src, code)
{
if (src.includes("collector.min"))
{
code = code
// PLASM: Block focus tracking
.replace(`this.checkAndHandleUnfocused=()=>{`, `this.checkAndHandleUnfocused=()=>{console.log("Blocked monitor action.");return;`)
// PLASM: Allow sharing one tab
.replace(/getSelectedArea\([A-Za-z,]*?\){/g, match => match + `return "monitor";`);
if (HanoiCollabGlobals.EnableTrackingPrevention)
{
code = code .replace(/(new Promise\(\()(\(.,.\))/, "$1 async $2")
// Here, we hardcode the interval to 5000 to allow students to have more time preparing their screens.
.replace(/validateOptions\(t\){/g, "validateOptions(t){if (t.interval) {window.HanoiCollabExposedVariables = window.HanoiCollabExposedVariables || []; window.HanoiCollabExposedVariables.OldIntervals = window.HanoiCollabExposedVariables.OldIntervals || {}; window.HanoiCollabExposedVariables.OldIntervals[t.id] = t.interval; t.interval = 5000;}")
.replace(/JSON\.stringify\(([^\)]*?)\.payload\)/, `(await (async function(t){if(!window.HanoiCollabExposedVariables?.HanoiCollabApproveRequest){throw "HanoiCollab blocked";} await window.HanoiCollabExposedVariables.HanoiCollabApproveRequest(t); return JSON.stringify(t.payload);})($1))`)
}
}
if (src.includes("link.js") || src.includes("app.js") || src.includes("form.js"))
{
code = code .replace(/\/api/g, top.window.location.origin + "/api")
.replace(/\/stream/g, top.window.location.origin + "/stream");
}
return code;
},
"docs.google.com": function(src, code)
{
// This _should_ allow Google Forms accept the sandbox,
// however many stuff are messed up so we dropped the sandbox
// for Google Forms.
if (src.includes("viewer_base"))
{
code = `
function setupHook(xhr) {
function getter() {
console.log('get responseText');
delete xhr.responseText;
var ret = xhr.responseText;
if (ret.includes("history.replaceState"))
{
ret = "window.history.replaceState=function(){};console.log(window.history);" + ret;
ret = ret .replace(/=history\\.pushState/, "=window.parent.history.pushState")
.replace(/=history\\.replaceState/, "=function(){}");
}
setup();
return ret;
}
function setter(str) {
console.log('set responseText: %s', str);
}
function setup() {
Object.defineProperty(xhr, 'responseText', {
get: getter,
set: setter,
configurable: true
});
}
setup();
}
XMLHttpRequest.prototype.oldOpen = XMLHttpRequest.prototype.open;
XMLHttpRequest.prototype.open = function(method, url, async, user, password)
{
console.log(url);
if (!this._HanoiCollabHooked) {
this._HanoiCollabHooked = true;
setupHook(this);
}
XMLHttpRequest.prototype.oldOpen.call(this, method, url, async, user);
}
` + code;
code = code.replace(/impressionBatch:[^}]+/g, "impressionBatch: []")
.replace(/this.j.send\(a\)/, "this.j.send((function(a){console.log(a);return a;})(a))")
.replace(/document\.getElementById\("base-js\"\)\)&&\([A-Za-z]\=[A-Za-z]\.src\?[A-Za-z]\.src.+?length-1]\.src/g, match => match.replace(/\.src/g, `.getAttribute("originalSrc")`));
}
return code;
}
};
function PatchElement(element)
{
switch (HanoiCollabGlobals.Provider)
{
case "quilgo.com":
{
if (element.classList.contains("form-submitted"))
{
element.remove();
}
if (element.classList.contains("plasm-caliber"))
{
var parser = new DOMParser();
var doc = parser.parseFromString(
`
<div class="hanoicollab-basic-container" style="color:red;">
<b>This is a screen-monitored exam! Please remember to enable Stealth Mode (by pressing Alt + H) before proceeding.</b>
</br>
<b>Furthermore, to prevent HanoiCollab's sign in popup to appear during the test, if you haven't logged in for more than 20 hours, please renew your
session by pressing Alt + L and entering your username and password in the dialog box.</b>
<h4>Good luck, and have fun!</h4>
</div>
`
, "text/html").body.firstChild;
element.appendChild(doc);
}
}
break;
}
}
async function SetupSandbox()
{
// Google is way too complex. Leave it alone.
// We don't have to intercept any form state variables: They're all present in the DOM.
if (HanoiCollabGlobals.Provider == "docs.google.com")
{
HanoiCollabGlobals.Document = document;
HanoiCollabGlobals.Window = unsafeWindow;
return new Promise((resolve) => resolve(document));
}
else if (HanoiCollabGlobals.Provider == "quilgo.com")
{
// There's some _urrh_ Google Captcha bullshit on this page.
// We also want to steer clear of it.
if (document.querySelector("[class='auth-via-email-submit']"))
{
HanoiCollabGlobals.Document = document;
HanoiCollabGlobals.Window = unsafeWindow;
return new Promise((resolve) => resolve(document));
}
}
var style = window.document.createElement("style");
style.innerText = `body {
margin: 0;
overflow: hidden;
}
#iframe1 {
position:absolute;
left: 0px;
width: 100%;
top: 0px;
height: 100%;
}`;
window.document.body.textContent = "";
window.document.body.appendChild(style);
var frame = window.document.createElement("iframe");
frame.id = "iframe1";
window.document.body.appendChild(frame);
var request = await Download(location.href);
var parser = new DOMParser();
var htmlDoc = parser.parseFromString(request.responseText, 'text/html');
for (var base of htmlDoc.getElementsByTagName("base"))
{
base.href = location.origin + "/";
}
async function PatchScript(script)
{
if (!script || script.tagName !== "SCRIPT")
{
return;
}
function PatchWindowAccess(code)
{
return code
.replace(/window\.location/g, "window.parent.location")
.replace(/window\.history/g, "window.parent.history")
.replace(/document\.location\.href/g, "window.parent.document.location.href")
.replace(/window\.parent\.location\.href=([^=])/g, function(match)
{
var index = match.indexOf("=");
return match.slice(0, index + 1) + "window.parent.document.location.origin+" + match.slice(index + 1);
});
}
if (script.src)
{
var scriptSource = script.getAttribute("src");
var request = await Download(scriptSource);
var scriptContent = HanoiCollabScriptPatches[HanoiCollabGlobals.Provider](scriptSource, PatchWindowAccess(request.responseText));
var scriptBlob = new Blob([scriptContent], {type: "application/javascript"});
script.src = URL.createObjectURL(scriptBlob);
script.setAttribute("originalSrc", scriptSource);
}
if (script.textContent)
{
script.textContent = PatchWindowAccess(script.textContent);
}
script.removeAttribute("integrity");
}
function PatchLocation(elem)
{
if (!elem.getAttribute)
{
return;
}
var src = elem.getAttribute("src");
var href = elem.getAttribute("href");
if (href)
{
if (!href.startsWith("http"))
{
elem.setAttribute("href", location.origin + href);
}
}
if (src)
{
if (src.startsWith("blob") || src.startsWith("data"))
{
return;
}
if (!src.startsWith("http"))
{
// Sus.
if (src.startsWith("//"))
{
elem.setAttribute("src", "https:" + src);
elem.setAttribute("originalSrc", src);
}
else
{
elem.setAttribute("src", location.origin + src);
elem.setAttribute("originalSrc", src);
}
}
}
}
for (var elem of htmlDoc.documentElement.getElementsByTagName("*"))
{
PatchLocation(elem);
await PatchScript(elem);
PatchElement(elem);
}
var blob = new Blob([htmlDoc.documentElement.outerHTML], {type: "text/html"});
return await new Promise(function (resolve, reject)
{
frame.onload = function()
{
new MutationObserver(async function(mutations)
{
for (var mutation of mutations)
{
for (var node of mutation.addedNodes)
{
PatchLocation(node);
await PatchScript(node);
if (node.getElementsByTagName)
{
for (var elem of node.getElementsByTagName("*"))
{
PatchLocation(elem);
await PatchScript(elem);
}
}
}
}
}).observe(frame.contentDocument.documentElement, {childList: true, subtree: true});
HanoiCollabGlobals.Document = frame.contentDocument;
HanoiCollabGlobals.Window = frame.contentWindow;
resolve({document: frame.contentDocument, window: frame.contentWindow});
}
frame.src = URL.createObjectURL(blob);
});
}
function SetupStyles()
{
var style = HanoiCollabGlobals.Document.createElement("style");
style.innerText =
`
*[id^="hanoicollab-"], *[class^="hanoicollab-"] {
box-sizing: border-box;
font-family: Segoe UI,Segoe WP,Tahoma,Arial,sans-serif;
font-size: 14px;
font-stretch: 100%;
font-style: normal;
font-variant-caps: normal;
font-variant-east-asian: normal;
font-variant-ligatures: normal;
font-variant-numeric: normal;
font-weight: 400;
letter-spacing: normal;
line-height: 1.5;
margin: 0;
margin-block-start: 1em;
margin-block-end: 1em;
margin-inline-start: 0px;
margin-inline-end: 0px;
padding: 0;
text-size-adjust: 100%;
user-select: none;
-webkit-font-smoothing: antialiased;
-webkit-tap-highlight-color: rgba(0, 0, 0, 0);
}
.hanoicollab-basic-container p {
margin: 0;
}
.hanoicollab-button {
background-color: rgba(0,127,127,0.9);
border: 1px solid black;
border-radius: 1ex;
padding: 0.5em;
color: white;
cursor: pointer;
line-height: 1.5;
text-transform: unset !important;
}
`;
HanoiCollabGlobals.Document.body.appendChild(style);
}
function AppendStealthModeStyle()
{
var stealthModeStyle = HanoiCollabGlobals.Document.createElement("style");
stealthModeStyle.innerText =
`
*[id^="hanoicollab-"], *[class^="hanoicollab-"] {
display: none;
}
`;
stealthModeStyle.id = "hanoicollab-stealth-mode-css";
HanoiCollabGlobals.Document.body.appendChild(stealthModeStyle);
}
function RemoveStealthModeStyle()
{
HanoiCollab$("#hanoicollab-stealth-mode-css").remove();
}
function ToggleStealthMode()
{
HanoiCollabGlobals.IsSteathMode = !HanoiCollabGlobals.IsSteathMode;
SetupStealthMode(true);
}
function SynchronizeStealthMode(originId)
{
originId = originId || HanoiCollabGlobals.WindowId;
// Stealth mode synchronization
if (window.parent)
{
window.parent.postMessage({
Type: "HanoiCollabStealthMode",
Value: HanoiCollabGlobals.IsSteathMode,
OriginId: originId
}, "*");
}
for (var frame in document.querySelectorAll("iframe"))
{
frame.contentWindow?.postMessage({
Type: "HanoiCollabStealthMode",
Value: HanoiCollabGlobals.IsSteathMode,
OriginId: originId
}, "*");
}
}
window.addEventListener("message", function(event)
{
var msg = event.data;
if (msg.Type === "HanoiCollabStealthMode")
{
if (msg.OriginId == HanoiCollabGlobals.WindowId)
{
return;
}
console.log(window.location.href + ": Received stealth mode message: " + msg.Value + " from " + msg.OriginId);
HanoiCollabGlobals.IsSteathMode = msg.Value;
SetupStealthMode(true);
SynchronizeStealthMode(msg.OriginId);
}
});
HanoiCollabGlobals.ChildProviders =
{
"quilgo.com": ["docs.google.com"]
};
async function SetupStealthMode(init = false)
{
if (!init)
{
HanoiCollabGlobals.Document.addEventListener('keyup', function (e)
{
if (e.altKey && e.key === 'h')
{
ToggleStealthMode();
}
}, false);
var stealthModeConfig = JSON.parse(await GM_getValue("HanoiCollabStealthConfig", "{}"));
if (stealthModeConfig[HanoiCollabGlobals.Provider])
{
HanoiCollabGlobals.IsSteathMode = stealthModeConfig[HanoiCollabGlobals.Provider];
}
HanoiCollabGlobals.StealthModeConfig = stealthModeConfig;
}
// Probably a hosted iframe where HanoiCollab is disabled.
if (!HanoiCollabGlobals.Document)
{
return;
}
if (HanoiCollabGlobals.IsSteathMode)
{
AppendStealthModeStyle();
HanoiCollabGlobals.StealthModeConfig[HanoiCollabGlobals.Provider] = true;
}
else
{
RemoveStealthModeStyle();
HanoiCollabGlobals.StealthModeConfig[HanoiCollabGlobals.Provider] = false;
}
// Sync with children
for (var child of (HanoiCollabGlobals.ChildProviders || {})[HanoiCollabGlobals.Provider] || [])
{
HanoiCollabGlobals.StealthModeConfig[child] = HanoiCollabGlobals.IsSteathMode;
}
SynchronizeStealthMode();
await GM_setValue("HanoiCollabStealthConfig", JSON.stringify(HanoiCollabGlobals.StealthModeConfig));
}
async function WaitForTestReady()
{
return await new Promise((resolve, reject) =>
{
switch (HanoiCollabGlobals.Provider)
{
case "azota.vn":
{
// Top, not hanoicollab. HanoiCollab's window is a blob, remember?
if (!top.window.location.href.includes("take-test"))
{
resolve(false);
return;
}
var hadFormState = false;
var interval = setInterval(function()
{
if (!hadFormState)
{
if (HanoiCollabGlobals.Window.HanoiCollabExposedVariables)
{
for (var v of HanoiCollabGlobals.Window.HanoiCollabExposedVariables)
{
if (v.saveToStorage && v.questionList)
{
// Clean the other junk.
HanoiCollabGlobals.Window.HanoiCollabExposedVariables = [];
// Name from our Office Forms experience.
HanoiCollabGlobals.Window.HanoiCollabExposedVariables.FormState = v;
// Prevent new junk.
HanoiCollabGlobals.Window.HanoiCollabExposedVariables.push = function(){};
hadFormState = true;
break;
}
}
}
}
else if (HanoiCollab$(".question-content").length)
{
clearInterval(interval);
resolve(true);
return;
}
}, 1000);
}
break;
case "forms.office.com":
{
if (!top.window.location.href.includes("Pages/ResponsePage.aspx"))
{
resolve(false);
return;
}
var hadFormState = false;
var interval = setInterval(function()
{
if (!hadFormState)
{
if (HanoiCollabGlobals.Window.HanoiCollabExposedVariables && HanoiCollabGlobals.Window.HanoiCollabExposedVariables.FormState)
{
hadFormState = true;
}
}
else if (HanoiCollab$(".office-form-question-content").length)
{
clearInterval(interval);
resolve(true);
return;
}
}, 1000);
}
break;
case "shub.edu.vn":
{
if (!top.window.location.href.endsWith("/test"))
{
resolve(false);
return;
}
var interval = setInterval(function()
{
if (HanoiCollabGlobals.Document.querySelectorAll("[id^=cell]").length)
{
clearInterval(interval);
resolve(true);
return;
}
});
}
break;
case "quilgo.com":
{
// We do not care about Quilgo: It's a freaking iframe,
// Tampermonkey will access the iframe.
resolve(false);
}
break;
case "docs.google.com":
{
if (!window.location.href.includes("/viewform"))
{
resolve(false);
return;
}
var interval = setInterval(function()
{
if (HanoiCollabGlobals.Document.querySelectorAll("form").length)
{
clearInterval(interval);
resolve(true);
return;
}
});
}
break;
default:
resolve(false);
}
})
}
function GetFormId()
{
switch (HanoiCollabGlobals.Provider)
{
case "azota.vn":
return "" + HanoiCollabGlobals.Window.HanoiCollabExposedVariables.FormState.exam_obj.id;
case "forms.office.com":
return "" + HanoiCollabGlobals.Window.HanoiCollabExposedVariables.FormState.$$.$H;
case "shub.edu.vn":
return "" + top.location.href.match(/homework\/([\d]+?)\/test/)[1];
case "docs.google.com":
return "" + window.location.href.match(`https:\/\/docs\.google\.com\/forms\/d\/e\/(.*?)\/viewform.*`)[1];
default:
return "";
}
}
class QuestionInfo
{
constructor(htmlElement, id, type, index)
{
this.HtmlElement = htmlElement;
this.Id = id;
this.Type = type;
this.Index = index;
var parser = new DOMParser();
this.CommunityAnswersHtml = parser.parseFromString(
`
<div class="hanoicollab-community-answers">
<div class="hanoicollab-community-answers-header">Community answers:</div>
<div class="hanoicollab-community-answers-multiple-choice">
<div class="hanoicollab-community-answers-multiple-choice-header">Multiple choice:</div>
<div class="hanoicollab-community-answers-multiple-choice-contents"></div>
</div>
<div class="hanoicollab-community-answers-written">
<div class="hanoicollab-community-answers-written-header">Written:</div>
<select class="hanoicollab-community-answers-written-select">
</select>
<div class="hanoicollab-community-answers-written-content" style="user-select:text;"></div>
</div>
</div>
`
, "text/html").body.firstChild;
if (this.Type == "multipleChoice")
{
this.CommunityAnswersHtml.querySelector(".hanoicollab-community-answers-written").style.display = "none";
}
if (this.Type == "written")
{
this.CommunityAnswersHtml.querySelector(".hanoicollab-community-answers-multiple-choice").style.display = "none";
}
var info = this;
this.CommunityAnswersHtml.querySelector("select").addEventListener("change", function()
{
info.UpdateWrittenSelect(this);
});
if (this.IsMultipleChoice())
{
this.Answers = [];
}
}
IsMultipleChoice()
{
return this.Type == "multipleChoice" || this.Type == "hybrid";
}
IsWritten()
{
return this.Type == "written" || this.Type == "hybrid";
}
GetUserAnswer()
{
throw "Not implemented";
}
SetUserAnswer()
{
throw "Not implemented";
}
async SendUserAnswer(answer)
{
if (HanoiCollabGlobals.ExamConnection)
{
var info = this;
if (info.SendUserTimeOut)
{
info.NeedsUpdate = true;
return;
}
info.SendUserTimeOut = true;
info.NeedsUpdate = false;
await HanoiCollabGlobals.ExamConnection.invoke("UpdateAnswer", GetFormId(), info.Id, answer);
setTimeout(function()
{
info.SendUserTimeOut = false;
if (info.NeedsUpdate)
{
info.SendUserAnswer(info.GetUserAnswer());
}
}, 1000);
}
}
ClearUserAnswer()
{
throw "Not implemented";
}
UpdateWrittenSelect(select)
{
var value = select.value;
if (!value)
{
return;
}
var contentElement = select.parentElement.querySelector(".hanoicollab-community-answers-written-content");
contentElement.innerText = this.CommunityAnswers.find(function(ans){return ans.User == value}).Answer;
}
UpdateCommunityAnswersHtml()
{
var info = this;
if (info.IsMultipleChoice())
{
var communityAnswers = info.CommunityAnswers;
var multipleChoice = communityAnswers.MultipleChoice;
var communityAnswersHtml = info.CommunityAnswersHtml;
var multipleChoiceHtml = communityAnswersHtml.querySelector(".hanoicollab-community-answers-multiple-choice-contents");
var elem = HanoiCollabGlobals.Document.createElement("div");
for (var key of Object.keys(multipleChoice).sort(function(key1, key2){return multipleChoice[key1].Alpha.localeCompare(multipleChoice[key2].Alpha)}))
{
if (multipleChoice[key].Alpha)
{
var p = HanoiCollabGlobals.Document.createElement("p");
p.innerHTML = `<b>${multipleChoice[key].Alpha}</b> (${multipleChoice[key].length}): ${EscapeHtml(multipleChoice[key].slice(0, Math.min(multipleChoice[key].length, 10)).join(", "))}`;
elem.appendChild(p);
}
}
multipleChoiceHtml.innerHTML = elem.innerHTML;
}
if (info.IsWritten())
{
var communityAnswers = info.CommunityAnswers;
var communityAnswersHtml = info.CommunityAnswersHtml;
var writtenSelect = communityAnswersHtml.querySelector(".hanoicollab-community-answers-written-select");
var newSelect = HanoiCollabGlobals.Document.createElement("select");
for (var ans of communityAnswers.sort(
function(a, b){return (a.Answer.length != b.Answer.length) ? b.Answer.length - a.Answer.length : a.User.localeCompare(b.User)}))
{
var option = HanoiCollabGlobals.Document.createElement("option");
option.value = ans.User;
option.innerText = `${ans.User} (${ans.Answer.length}) characters`;
newSelect.appendChild(option);
}
writtenSelect.innerHTML = newSelect.innerHTML;
info.UpdateWrittenSelect(writtenSelect);
}
}
};
// A unified interface for getting questions.
function GetQuestions()
{
switch (HanoiCollabGlobals.Provider)
{
case "azota.vn":
{
var result = [];
var elements = HanoiCollab$(".question-content");
var questions = HanoiCollabGlobals.Window.HanoiCollabExposedVariables.FormState.questionList;
for (var i = 0; i < questions.length; ++i)
{
var info = new QuestionInfo(elements[i], "" + questions[i].id, questions[i].answerType === 1 ? "multipleChoice" : "written", i);
info.GetUserAnswer = function()
{
var info = this;
var ans = HanoiCollabGlobals.Window.HanoiCollabExposedVariables.FormState.answerList.find(function (a)
{
return a.questionId == info.Id;
});
if (!ans)
{
return null;
}
return ans.answerContent[0].content;
}
info.SetUserAnswer = function(answer)
{
if (this.SendUserAnswer)
{
this.SendUserAnswer(answer);
}
var sheetContentButton = HanoiCollab$(".sheet_content").find(".no-answered")[this.Index];
if (answer)
{
sheetContentButton.style.backgroundColor = "rgba(60, 141, 188, 1)";
sheetContentButton.style.color = "rgb(255, 255, 255)";
}
else
{
sheetContentButton.style.background = "#fff";
sheetContentButton.style.color = "#111";
}
}
if (questions[i].answerType === 1)
{
if (questions[i].answerConfig[0].alpha)
{
for (var j = 0; j < questions[i].answerConfig.length; ++j)
{
info.Answers.push({Id: questions[i].answerConfig[j].key, Alpha: questions[i].answerConfig[j].alpha});
}
}
else
{
for (var j = 0; j < questions[i].answerConfig[0].answer.length; ++j)
{
//To-Do: Is this shit shuffled?
info.Answers.push({Id: questions[i].answerConfig[0].answer[j].content, Alpha: questions[i].answerConfig[0].answer[j].content});
}
}
info.ClearUserAnswer = function()
{
var info = this;
var formState = HanoiCollabGlobals.Window.HanoiCollabExposedVariables.FormState;
formState.answerList = formState.answerList.filter(function (a)
{
return a.questionId != info.Id;
});
formState.saveToStorage(formState.answerList, formState.noteList, formState.files);
HanoiCollab$(this.HtmlElement).find(".no-answered").each(function (i, button)
{
button.style.background = "#fff";
button.style.color = "#111";
});
for (var j = 0; j < questions[info.Index].answerConfig.length; ++j)
{
questions[info.Index].answerConfig[j].checked = false;
}
}
}
else
{
info.ClearUserAnswer = function()
{
var info = this;
var formState = HanoiCollabGlobals.Window.HanoiCollabExposedVariables.FormState;
formState.answerList = formState.answerList.filter(function (a)
{
return a.questionId != info.Id;
});
formState.saveToStorage(formState.answerList, formState.noteList, formState.files);
HanoiCollab$(this.HtmlElement).find("textarea").each(function (i, textArea)
{
textArea.value = null;
});
}
}
result.push(info);
}
return result;
}
case "forms.office.com":
{
var result = [];
var elements = HanoiCollab$(".office-form-question-content");
var questions = HanoiCollabGlobals.Window.HanoiCollabExposedVariables.FormState.$$.$e;
for (let i = 0; i < elements.length; ++i)
{
var currentQuestionId = HanoiCollab$(elements[i]).find(".question-title-box")[0].id.substr("QuestionId_".length);
var currentQuestion = questions[currentQuestionId];
var info = new QuestionInfo(elements[i], currentQuestionId, currentQuestion.info.type == "Question.Choice" ? "multipleChoice" : "written", i);
info.GetUserAnswer = function()
{
var info = this;
var content = HanoiCollabGlobals.Window.HanoiCollabExposedVariables.FormState.$$.$e[info.Id].runtime.$c;
if (!content || content.length == 0)
{
return null;
}
if (info.IsMultipleChoice())
{
// Array of choices.
return content[0].getHashCode();
}
else
{
// String
return content;
}
}
info.SetUserAnswer = function(answer)
{
if (this.SendUserAnswer)
{
this.SendUserAnswer(answer);
}
}
if (info.IsMultipleChoice())
{
var alpha = "A";
for (let j = 0; j < currentQuestion.info.choices.length; ++j)
{
info.Answers.push({Id: currentQuestion.info.choices[j].description.getHashCode(), Alpha: String.fromCharCode(alpha.charCodeAt(0) + j)});
}
info.ClearUserAnswer = function()
{
var info = this;
HanoiCollabGlobals.Window.HanoiCollabExposedVariables.FormState.$$.$e[info.Id].runtime.$c = [];
for (var input of info.HtmlElement.getElementsByTagName("input"))
{
input.checked = false;
}
if (HanoiCollabGlobals.Window.HanoiCollabExposedVariables.UpdateLocalStorage)
{
HanoiCollabGlobals.Window.HanoiCollabExposedVariables.UpdateLocalStorage(
HanoiCollabGlobals.Window.HanoiCollabExposedVariables.FormState.$$
);
}
}
}
else
{
info.ClearUserAnswer = function()
{
var info = this;
HanoiCollabGlobals.Window.HanoiCollabExposedVariables.FormState.$$.$e[info.Id].runtime.$c = "";
for (var input of info.HtmlElement.getElementsByTagName("input"))
{
input.value = "";
}
if (HanoiCollabGlobals.Window.HanoiCollabExposedVariables.UpdateLocalStorage)
{
HanoiCollabGlobals.Window.HanoiCollabExposedVariables.UpdateLocalStorage(
HanoiCollabGlobals.Window.HanoiCollabExposedVariables.FormState.$$
);
}
}
}
result.push(info);
}
return result;
}
case "shub.edu.vn":
{
var result = [];
var elements = HanoiCollab$("[id^=cell]");
for (let i = 0; i < elements.length; ++i)
{
var currentQuestionId = elements[i].id.substr("cell-".length);
var info = new QuestionInfo(elements[i], currentQuestionId, "hybrid", i);
info.GetUserAnswer = function()
{
var info = this;
var text = this.HtmlElement.getElementsByTagName("p")[0].innerText;
var colonIndex = text.indexOf(":");
if (colonIndex == -1)
{
return null;
}
text = text.substr(colonIndex + 1);
if (!text)
{
return null;
}
return text;
}
info.SetUserAnswer = function(answer)
{
if (this.SendUserAnswer)
{
this.SendUserAnswer(answer);
}
}
info.ClearUserAnswer = function()
{
// May or may not be implemented using simulation.
throw "Not implemented.";
}
var alpha = "A";
for (let j = 0; j < 4; ++j)
{
info.Answers.push({Id: String.fromCharCode(alpha.charCodeAt(0) + j), Alpha: String.fromCharCode(alpha.charCodeAt(0) + j)});
}
result.push(info);
}
return result;
}
case "docs.google.com":
{
var result = [];
var questions = HanoiCollabGlobals.Window.FB_PUBLIC_LOAD_DATA_[1][1];
var questionElements = document.querySelectorAll("[role=\"listitem\"]");
for (let i = 0; i < questions.length; ++i)
{
var q = questions[i];
var qElem = questionElements[i];
var currentQuestionType = null;
switch (q[3])
{
case 0:
currentQuestionType = "hybrid";
break;
case 1:
currentQuestionType = "written";
break;
case 2:
currentQuestionType = "multipleChoice";
break;
}
if (currentQuestionType == null)
{
continue;
}
var currentQuestionId = "" + q[4][0][0];
var info = new QuestionInfo(qElem, currentQuestionId, currentQuestionType, i);
if (currentQuestionType == "multipleChoice")
{
var answers = q[4][0][1];
var alpha = "A";
for (let j = 0; j < answers.length; ++j)
{
var a = answers[j];
info.Answers.push({Id: "" + a[0].getHashCode(), Alpha: String.fromCharCode(alpha.charCodeAt(0) + j)});
}
}
else if (currentQuestionType == "hybrid")
{
var alpha = "A";
for (let j = 0; j < 4; ++j)
{
info.Answers.push({Id: String.fromCharCode(alpha.charCodeAt(0) + j), Alpha: String.fromCharCode(alpha.charCodeAt(0) + j)});
}
}
info.GetUserAnswer = function()
{
var info = this;
var input = HanoiCollab$("[name=\"entry." + info.Id + "\"]")[0];
var content = input?.value;
if (!content || content.length == 0)
{
return null;
}
if (info.Type == "multipleChoice")
{
return content.getHashCode();
}
else
{
return content;
}
}
info.SetUserAnswer = function(answer)
{
if (this.SendUserAnswer)
{
this.SendUserAnswer(answer);
}
}
info.ClearUserAnswer = function()
{
var info = this;
var input = HanoiCollab$("[name=\"entry." + info.Id + "\"]")[0];
// Clear from DOM
if (input)
{
input.value = "";
if (info.Type == "multipleChoice")
{
input.remove();
}
}
// Clear from UI
if (info.IsWritten())
{
var writeArea = info.HtmlElement.querySelector("input,textarea");
if (writeArea)
{
writeArea.value = "";
writeArea.dispatchEvent(new InputEvent("input", {bubbles: true}));
}
}
else
{
var elem = info.HtmlElement.querySelector("[aria-checked='true']");
if (elem)
{
elem.setAttribute("aria-checked", "false");
elem.setAttribute("tabindex", "-1");
var clazz = elem.classList[elem.classList.length - 1];
elem.classList.remove(clazz);
}
}
}
result.push(info);
}
return result;
}
default:
{
return [];
}
}
}
function SetupElementHooks()
{
var questions = HanoiCollabGlobals.Questions;
function Update(q)
{
// Set timeout, to wait for other event handlers:
setTimeout(function()
{
var answer = q.GetUserAnswer();
q.SetUserAnswer(answer);
}, 100);
}
function AddButton(q)
{
var button = HanoiCollabGlobals.Document.createElement("button");
button.innerText = "Clear";
button.className = "hanoicollab-clear-button";
button.type = "button";
button.addEventListener("click", function() {q.ClearUserAnswer();});
q.HtmlElement.appendChild(button);
}
for (/* new var in each interation */let q of questions)
{
switch (HanoiCollabGlobals.Provider)
{
case "azota.vn":
{
if (q.Type == "multipleChoice")
{
q.HtmlElement.querySelector(".list-answer").addEventListener("click", function(){Update(q)});
}
else
{
q.HtmlElement.querySelector("textarea").addEventListener("blur", function(){Update(q)});
}
AddButton(q);
}
break;
case "forms.office.com":
{
if (q.Type == "multipleChoice")
{
for (var row of q.HtmlElement.getElementsByClassName("office-form-question-choice-row"))
{
row.addEventListener("click", function(){Update(q)});
}
}
else
{
q.HtmlElement.querySelector(".office-form-textfield-input").addEventListener("blur", function(){Update(q)});
}
AddButton(q);
}
break;
case "shub.edu.vn":
{
// We don't add clear buttons for SHUB.
q.HtmlElement.addEventListener("click", function()
{
// setTimeout(function()
// {
// q.HtmlElement.closest(".MuiBox-root").querySelector(".hanoicollab-community-answers").remove();
// q.HtmlElement.closest(".MuiBox-root").appendChild(q.CommunityAnswersHtml);
// }, 100);
});
}
break;
case "docs.google.com":
{
AddButton(q);
}
default:
break;
}
q.HtmlElement.querySelector(".hanoicollab-clear-button")?.addEventListener("click", function(){Update(q)});
}
if (HanoiCollabGlobals.Provider == "shub.edu.vn")
{
var inputAnsKey = HanoiCollabGlobals.Document.getElementById("inputAnsKey");
new MutationObserver(function(mutations)
{
for (var mutation of mutations)
{
Update(HanoiCollabGlobals.Questions[Number.parseInt(mutation.oldValue.substring("Đáp án câu ".length)) - 1]);
mutation.target.closest(".MuiBox-root").querySelector(".hanoicollab-community-answers")?.remove();
mutation.target.closest(".MuiBox-root").appendChild(HanoiCollabGlobals.Questions[Number.parseInt(mutation.target.placeholder.substring("Đáp án câu ".length)) - 1].CommunityAnswersHtml);
}
}).observe(inputAnsKey, {subtree: false, childList: false, attributes: true, attributeOldValue : true, attributeFilter: ["placeholder"]})
// Very annoying and covers community answers.
inputAnsKey.setAttribute("autocomplete", "off");
inputAnsKey.addEventListener("blur", function()
{
for (let q of questions)
{
if (q.HtmlElement.style.border.startsWith("2px"))
{
Update(q);
}
}
});
}
if (HanoiCollabGlobals.Provider == "docs.google.com")
{
var inputCollection = HanoiCollabGlobals.Document.querySelector("form").querySelector("input").parentElement;
new MutationObserver(function(mutations)
{
var ids = [];
for (var mutate of mutations)
{
if (mutate.target?.name?.includes("entry"))
{
ids[mutate.target.name.substring("entry.".length)] = true;
}
}
for (let q of questions)
{
if (ids[q.Id])
{
Update(q);
}
}
}).observe(inputCollection, {subtree: true, childList: true, attributes: true, attributeOldValue : true, attributeFilter: ["value"]})
}
}
class QuestionLayout
{
constructor(type, description, id, answers, resources, imageResources)
{
this.Type = type;
this.Description = description;
this.Id = id;
this.Answers = answers;
this.Resources = resources;
this.ImageResources = imageResources;
}
}
class AnswerLayout
{
constructor(description, resources, id, alpha, imageResources)
{
this.Description = description;
this.Resources = resources;
this.Id = id;
this.Alpha = alpha;
this.ImageResources = imageResources;
}
}
class ExamLayout
{
constructor()
{
this.OriginalLink = window.location.href;
this.Resources = this.ExtractResources();
this.Questions = this.ExtractQuestions();
}
ExtractResources()
{
switch (HanoiCollabGlobals.Provider)
{
case "shub.edu.vn":
{
return HanoiCollabGlobals.Window.HanoiCollabExposedVariables?.ExposedFiles?.filter(function (a, b, c)
{
return c.indexOf(a) === b;
});
}
case "docs.google.com":
{
var result = [];
// return result;
for (var item of Array.from(HanoiCollabGlobals.Document.querySelectorAll("*")).filter(i => i.getAttribute("role") == "listitem"))
{
// All items without any choices:
if (!item.querySelectorAll("input").length &&
!item.querySelectorAll("textarea").length &&
!item.querySelectorAll("label").length)
{
result.push(...Array.from(item.querySelectorAll("img,iframe")).map(i => i.src));
}
}
return result;
}
default:
{
return [];
}
}
}
ExtractQuestions()
{
switch (HanoiCollabGlobals.Provider)
{
case "forms.office.com":
{
var result = [];
var elements = HanoiCollab$(".office-form-question-content");
var questions = HanoiCollabGlobals.Window.HanoiCollabExposedVariables.FormState.$$.$e;
for (let i = 0; i < elements.length; ++i)
{
var currentQuestionId = HanoiCollab$(elements[i]).find(".question-title-box")[0].id.substr("QuestionId_".length);
var currentQuestion = questions[currentQuestionId];
var answers = [];
var currentQuestionType = null;
if (currentQuestion.info.type == "Question.Choice")
{
var alpha = "A";
for (var j = 0; j < currentQuestion.info.choices.length; ++j)
{
var currentAnswer = currentQuestion.info.choices[j];
answers.push(new AnswerLayout(currentAnswer.description, null, currentAnswer.description.getHashCode(), String.fromCharCode(alpha.charCodeAt(0) + j), null));
}
currentQuestionType = "multipleChoice";
}
else
{
currentQuestionType = "written";
}
var currentQuestionImageResources = null;
if (currentQuestion.info.image)
{
currentQuestionImageResources = [currentQuestion.info.image];
}
var currentQuestionDescription = currentQuestion.info.title;
if (currentQuestion.info.subtitle)
{
currentQuestionDescription += "\n" + currentQuestion.info.subtitle;
}
result.push(new QuestionLayout(currentQuestionType, currentQuestionDescription, currentQuestionId, answers, null, currentQuestionImageResources));
}
return result;
}
case "azota.vn":
{
var result = [];
var questions = HanoiCollabGlobals.Window.HanoiCollabExposedVariables.FormState.questionList;
for (let i = 0; i < questions.length; ++i)
{
var currentQuestion = questions[i];
var currentQuestionId = "" + currentQuestion.id;
var answers = [];
var currentQuestionType = currentQuestion.answerType == 1 ? "multipleChoice" : "written";
if (currentQuestion.answerType == 1)
{
if (currentQuestion.answerConfig[0].alpha)
{
for (var j = 0; j < currentQuestion.answerConfig.length; ++j)
{
answers.push(new AnswerLayout(currentQuestion.answerConfig[j].content.replace("<br>", "\n"), null, currentQuestion.answerConfig[j].key, currentQuestion.answerConfig[j].alpha, null));
}
}
else
{
for (var j = 0; j < currentQuestion.answerConfig[0].answer.length; ++j)
{
//To-Do: Is this shit shuffled?
answers.push(new AnswerLayout(null, null, currentQuestion.answerConfig[0].answer[j].content, currentQuestion.answerConfig[0].answer[j].content, null));
}
}
}
var currentQuestionResources = [];
var currentQuestionImageResources = [];
var currentQuestionDescription = currentQuestion.questionText;
for (var content of currentQuestion.questionContent)
{
if (["jpg", "png", "bmp", "svg"].includes(content.extension))
{
currentQuestionImageResources.push(content.url);
}
else if (content.extension == "text")
{
currentQuestionDescription += content.content.replace("<br>", "\n");
}
else
{
currentQuestionResources.push(content.url);
}
}
result.push(new QuestionLayout(currentQuestionType, currentQuestionDescription, currentQuestionId, answers, currentQuestionResources, currentQuestionImageResources));
}
return result;
}
break;
case "shub.edu.vn":
{
// To-do: SHUB questions may have multimedia resources.
var result = [];
// To-do: SHUB questions might also have descriptions.
for (var q of HanoiCollabGlobals.Questions)
{
var answers = [];
for (var a of q.Answers)
{
answers.push(new AnswerLayout("", null, a.Id, a.Alpha, null));
}
result.push(new QuestionLayout("hybrid", "SHUB question #" + (q.Index + 1), q.Id, answers, null, null));
}
return result;
}
break;
case "docs.google.com":
{
var result = [];
var questions = HanoiCollabGlobals.Window.FB_PUBLIC_LOAD_DATA_[1][1];
var questionElements = document.querySelectorAll("[role=\"listitem\"]");
for (let i = 0; i < questions.length; ++i)
{
var q = questions[i];
var qElem = questionElements[i];
var currentQuestionType = null;
switch (q[3])
{
case 0:
currentQuestionType = "hybrid";
break;
case 1:
currentQuestionType = "written";
break;
case 2:
currentQuestionType = "multipleChoice";
break;
}
if (currentQuestionType == null)
{
continue;
}
var currentQuestionDescription = q[1];
var currentQuestionId = "" + q[4][0][0];
var currentQuestionAnswers = [];
var resourcesInAnswers = [];
if (currentQuestionType == "multipleChoice")
{
var answers = q[4][0][1];
var answerElements = qElem.querySelectorAll("label");
var alpha = "A";
for (let j = 0; j < answers.length; ++j)
{
var a = answers[j];
var aElem = answerElements[j];
var imageResources = Array.from(aElem.querySelectorAll("img")).map(i => i.src);
var resources = Array.from(aElem.querySelectorAll("iframe")).map(i => i.src);
resourcesInAnswers.push(...imageResources);
resourcesInAnswers.push(...resources);
currentQuestionAnswers.push(new AnswerLayout(a[0], resources, a[0].getHashCode(), String.fromCharCode(alpha.charCodeAt(0) + j), imageResources));
}
}
else if (currentQuestionType == "hybrid")
{
var alpha = "A";
for (let j = 0; j < 4; ++j)
{
currentQuestionAnswers.push(new AnswerLayout("", null, String.fromCharCode(alpha.charCodeAt(0) + j), String.fromCharCode(alpha.charCodeAt(0) + j), null));
}
}
var currentQuestionImageResources = Array.from(qElem.querySelectorAll("img")).map(i => i.src).filter(i => !resourcesInAnswers.includes(i));
var currentQuestionResources = Array.from(qElem.querySelectorAll("iframe")).map(i => i.src).filter(i => !resourcesInAnswers.includes(i));
result.push(new QuestionLayout(currentQuestionType, currentQuestionDescription, currentQuestionId, currentQuestionAnswers, currentQuestionResources, currentQuestionImageResources));
}
return result;
}
default:
return [];
}
}
}
async function SetupExamConnection()
{
if (HanoiCollabGlobals.ExamConnection)
{
return HanoiCollabGlobals.ExamConnection;
}
var connection = new signalR
.HubConnectionBuilder()
.withUrl(HanoiCollabGlobals.Server + "hubs/exam", { accessTokenFactory: GetToken })
.build();
HanoiCollabGlobals.ExamConnection = connection;
var questions = HanoiCollabGlobals.Questions;
connection.on("InitializeExam", async function(onlineQuestions)
{
for (var q of questions)
{
q.CommunityAnswers = [];
q.CommunityAnswers.MultipleChoice = [];
if (q.IsMultipleChoice())
{
q.CommunityAnswers.MultipleChoice = [];
for (var a of q.Answers)
{
q.CommunityAnswers.MultipleChoice[a.Id] = [];
q.CommunityAnswers.MultipleChoice[a.Id].Alpha = a.Alpha;
}
}
}
for (var i = 0; i < onlineQuestions.length; ++i)
{
var question = questions.find(function (q)
{
return q.Id == onlineQuestions[i].QuestionId;
});
if (question.CommunityAnswers.MultipleChoice[onlineQuestions[i].Answer])
{
question.CommunityAnswers.MultipleChoice[onlineQuestions[i].Answer].push(onlineQuestions[i].UserId);
}
else
{
question.CommunityAnswers.push({User: onlineQuestions[i].UserId, Answer: onlineQuestions[i].Answer});
}
}
for (var q of questions)
{
q.UpdateCommunityAnswersHtml();
var ans = q.GetUserAnswer();
if (ans != null)
{
await q.SendUserAnswer(ans);
}
}
console.log(HanoiCollabGlobals.Questions);
});
connection.on("ReceiveAnswer", function(onlineQuestion)
{
var question = questions.find(function (q)
{
return q.Id == onlineQuestion.QuestionId;
});
if (onlineQuestion.OldAnswer)
{
if (question.CommunityAnswers.MultipleChoice[onlineQuestion.OldAnswer])
{
var arr = question.CommunityAnswers.MultipleChoice[onlineQuestion.OldAnswer];
arr.splice(arr.indexOf(onlineQuestion.UserId), 1);
}
// null answer, must delete.
else if (!onlineQuestion.Answer)
{
var arr = question.CommunityAnswers;
var idx = arr.findIndex(function(ans){return ans?.User == onlineQuestion.UserId;});
if (idx != -1)
{
arr.splice(idx, 1);
}
}
}
if (question.CommunityAnswers.MultipleChoice[onlineQuestion.Answer])
{
question.CommunityAnswers.MultipleChoice[onlineQuestion.Answer].push(onlineQuestion.UserId);
var idx = question.CommunityAnswers.findIndex(function (ans){return ans?.User == onlineQuestion.UserId;});
if (idx != -1)
{
question.CommunityAnswers.splice(idx, 1);
}
}
// Prevent null answers, which are actually deletions.
else if (onlineQuestion.Answer)
{
var arr = question.CommunityAnswers;
var idx = arr.findIndex(function(ans){return ans.User == onlineQuestion.UserId;});
if (idx != -1)
{
arr[idx].Answer = onlineQuestion.Answer;
}
else
{
question.CommunityAnswers.push({User: onlineQuestion.UserId, Answer: onlineQuestion.Answer});
}
}
question.UpdateCommunityAnswersHtml();
});
connection.on("RequestExamLayout", function(examId)
{
if (examId === GetFormId())
{
connection.invoke("BroadcastExamLayout", examId, new ExamLayout());
}
});
await connection.start();
await connection.invoke("JoinExam", GetFormId());
connection.DeliberateClose = false;
connection.onclose(function()
{
if (connection.DeliberateClose)
{
return;
}
console.log("Reconnecting...");
var handle = setInterval(async function()
{
await connection.start();
await HanoiCollabGlobals.ExamConnection.invoke("JoinExam", GetFormId());
clearInterval(handle);
}, 5000);
});
return connection;
}
async function TerminateExamConnection()
{
if (HanoiCollabGlobals.ExamConnection)
{
await HanoiCollabGlobals.ExamConnection.invoke("LeaveExam", GetFormId());
HanoiCollabGlobals.ExamConnection.DeliberateClose = true;
await HanoiCollabGlobals.ExamConnection.stop();
HanoiCollabGlobals.ExamConnection = null;
}
}
function SetupCommunityAnswersUserInterface()
{
switch(HanoiCollabGlobals.Provider)
{
case "shub.edu.vn":
{
for (var q of HanoiCollabGlobals.Questions)
{
// Active question.
if (q.HtmlElement.style.border.startsWith("2px"))
{
q.HtmlElement.closest(".MuiBox-root").appendChild(q.CommunityAnswersHtml);
return;
}
}
var q = HanoiCollabGlobals.Questions[0];
q.HtmlElement.closest(".MuiBox-root").appendChild(q.CommunityAnswersHtml);
}
break;
case "azota.vn":
case "forms.office.com":
default:
{
for (var q of HanoiCollabGlobals.Questions)
{
q.HtmlElement.appendChild(q.CommunityAnswersHtml);
}
}
break;
}
}
async function DisplayPopup(element, urgent)
{
while (HanoiCollabGlobals.NoticePopupPromise)
{
await HanoiCollabGlobals.NoticePopupPromise;
}
HanoiCollabGlobals.NoticePopupPromise = new Promise(async function(resolve, reject)
{
var needsReToggle = false;
if (urgent && HanoiCollabGlobals.IsSteathMode)
{
needsReToggle = true;
ToggleStealthMode();
}
//--- Use jQuery to add the form in a "popup" dialog.
HanoiCollab$(HanoiCollabGlobals.Document.body).append (`
<div id="hanoicollab-notice-popup-container" class="hanoicollab-basic-container">
<p id="hanoicollab-notice-popup-background" style="position:fixed;top:0;left:0;right:0;bottom:0;background-color:rgba(0,0,0,0.9);z-index:9998;"></p>
<div id="hanoicollab-notice-popup" style="position:fixed;top:50%;left:50%;transform:translate(-50%,-50%);width:50%;padding:2em;color:white;background-color:rgba(0,127,255,0.75);border-radius:1ex;z-index:9999;">
${element.outerHTML}
</div>
</div>
`);
for (let button of HanoiCollabGlobals.Document.getElementById("hanoicollab-notice-popup").getElementsByTagName("button"))
{
button.onclick = function()
{
if (needsReToggle)
{
ToggleStealthMode();
}
HanoiCollab$("#hanoicollab-notice-popup-container").remove();
HanoiCollabGlobals.NoticePopupPromise = null;
resolve(button.value);
}
}
});
return await HanoiCollabGlobals.NoticePopupPromise;
}
function SetupTrackingPrevention()
{
HanoiCollabGlobals.Window.HanoiCollabExposedVariables = HanoiCollabGlobals.Window.HanoiCollabExposedVariables || [];
HanoiCollabGlobals.Window.HanoiCollabExposedVariables.HanoiCollabApproveRequest = async function(data)
{
switch (HanoiCollabGlobals.Provider)
{
case "quilgo.com":
{
if (data.path == "snapshots" || data.path == "screenshots")
{
if (HanoiCollabGlobals.AlwaysBlockImage && HanoiCollabGlobals.AlwaysBlockImage[data.path])
{
throw "Image blocked by HanoiCollab";
}
if (HanoiCollabGlobals.AlwaysSendImage && HanoiCollabGlobals.AlwaysSendImage[data.path])
{
return;
}
if (HanoiCollabGlobals.LoopImage && HanoiCollabGlobals.LoopImage[data.path])
{
console.log("HanoiCollab is looping an old image for " + data.path);
data.payload.image = HanoiCollabGlobals.LoopImage[data.path];
var collectorType = null;
switch (data.path)
{
case "snapshots":
collectorType = "camera";
break;
case "screenshots":
collectorType = "screen";
break;
}
HanoiCollabGlobals.AlwaysBlockImage = HanoiCollabGlobals.AlwaysBlockImage || {};
HanoiCollabGlobals.AlwaysBlockImage[data.path] = true;
console.log("HanoiCollab is restoring original interval....");
setTimeout(function()
{
HanoiCollabGlobals.AlwaysBlockImage = HanoiCollabGlobals.AlwaysBlockImage || {};
HanoiCollabGlobals.AlwaysBlockImage[data.path] = false;
}, HanoiCollabGlobals.Window.HanoiCollabExposedVariables.OldIntervals[collectorType]);
return;
}
var parser = new DOMParser();
var doc = parser.parseFromString(
`
<p>Quilgo's PLASM engine is trying to record your ${data.path == "snapshots" ? "snapshot" : "screenshot"}! Choose your action!</p>
<div style="display:flex;justify-content:center;align-items:center;width:100%;">
<img src="data:image/jpeg;base64,${data.payload.image}" style="max-width:100%;"></img>
</div>
<button class="hanoicollab-button" value="loop">Send this image over and over</button>
<button class="hanoicollab-button" value="send">Send</button>
<button class="hanoicollab-button" value="always-send">Always send ${data.path}</button>
<button class="hanoicollab-button" value="block">Block</button>
<button class="hanoicollab-button" value="always-block">Always block ${data.path}</button>
`
, "text/html").body;
var result = await DisplayPopup(doc, true);
switch (result)
{
case "loop":
var image = data.payload.image;
HanoiCollabGlobals.LoopImage = HanoiCollabGlobals.LoopImage || {};
HanoiCollabGlobals.LoopImage[data.path] = image;
return;
case "send":
return;
case "always-send":
HanoiCollabGlobals.AlwaysSendImage = HanoiCollabGlobals.AlwaysSendImage || {};
HanoiCollabGlobals.AlwaysSendImage[data.path] = true;
return;
case "block":
throw "Image blocked by HanoiCollab";
case "always-block":
HanoiCollabGlobals.AlwaysBlockImage = HanoiCollabGlobals.AlwaysBlockImage || {};
HanoiCollabGlobals.AlwaysBlockImage[data.path] = true;
throw "Image blocked by HanoiCollab";
}
}
return;
}
}
}
}
(async function()
{
if (window.location.origin.startsWith("blob"))
{
return;
}
HanoiCollabGlobals.Provider = location.hostname;
HanoiCollabGlobals.Channel = location.href;
await WaitForDocumentReady();
var oldPushState = window.history.pushState;
window.history.pushState = function(state, title, url)
{
if (url)
{
// Should never return, page reloaded.
location.href = url;
}
oldPushState(state, title, url);
}
await SetupSandbox();
// We had a nice time implementing this, however, this function still have
// some problems:
// - A loop of the snapshot seems really suspicious when the student doesn't move during the test.
// The teacher might accuse the student of using a virtual background.
// - A loop of the screenshot is way more suspicious: The clock does not tick if the screenshot
// is looped.
// Therefore, the recommended way to disable Quilgo tracking is using OBS studio (or any virtual camera provider)
// _and_ using HanoiCollab's website for collaboration.
if (HanoiCollabGlobals.EnableTrackingPrevention)
{
SetupTrackingPrevention();
}
await SetupStealthMode();
SetupKeyBindings();
SetupStyles();
await SetupServer();
await SetupIdentity();
await SetupChatConnection();
await SetupChatUserInterface();
var isTest = await WaitForTestReady();
HanoiCollabGlobals.OnIdentityChange = async function()
{
await TerminateChatConnection();
await SetupChatConnection();
await SetupChatUserInterface();
if (isTest)
{
await TerminateExamConnection();
await SetupExamConnection();
}
}
if (isTest)
{
HanoiCollabGlobals.Questions = GetQuestions();
SetupElementHooks();
await SetupExamConnection();
SetupCommunityAnswersUserInterface();
}
$(window).on("beforeunload", async function()
{
await TerminateChatConnection();
await TerminateExamConnection();
});
})();
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