First commit

diff --git a/.gitattributes b/.gitattributes
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+++ b/.gitattributes
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+*.pdf filter=fat
+*.zip filter=fat
+*.tar.xz filter=fat
+*.png filter=fat
+*.ico filter=fat

diff --git a/.gitfat b/.gitfat
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--- /dev/null
+++ b/.gitfat
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+[rsync]
+remote = gitfat@auder.net:~/files/qomet

diff --git a/.gitignore b/.gitignore
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--- /dev/null
+++ b/.gitignore
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+/node_modules/
+*.swp
+/config/parameters.js
+/public/vendor/prism/components/

diff --git a/LICENSE b/LICENSE
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--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,15 @@
+ISC License
+
+Copyright (c) 2018, Benjamin Auder
+
+Permission to use, copy, modify, and/or distribute this software for any
+purpose with or without fee is hereby granted, provided that the above
+copyright notice and this permission notice appear in all copies.
+
+THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.

diff --git a/README.md b/README.md
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+++ b/README.md
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+# qomet
+
+### Questions Ouvertes ou à options Multiples pour l'Évaluation des éTudiants
+
+Or "... pour Examens sur inTernet", in french.
+
+In english, just revert the acronym:
+"sTudents Evaluation with Multiple chOices or Open Questions (or ...inTernet Exams with).
+
+## Features
+
+Allow teachers to create courses, containing assessments. Each of them can be public, or
+restricted to a classroom (identification by student ID).
+Individual answers to an exam are monitored in real time, and feedback is sent
+to each participant in the end (answers, computing grade).
+Once a series of exam is over, the teacher can get all grades in CSV format from course page.
+
+*Note:* for now the monitoring + socket part is still unimplemented,
+and exams composition is limited to single question exercises.
+
+## Installation
+
+See setup/README
+
+## Usage
+
+TODO: write tutorial, maybe a demo video.
+
+*Note about exams:*
+Once an assessment is started, it's impossible to quit and restart using another browser,
+because a password stored in cookies need to be sent with every request.
+So under normal circumstances it's also impossible for a student to continue the exam of another.
+(The password is destroyed when exam ends or when the teacher decide to finish assessment).
+
+## Limitations
+
+Version "standard classroom": some potential cheating ways,
+ - headless browsers with renamed http-user-agent; difficult to counter with 100% confidence
+ - block JS script using e.g. μblock, then re-inject the script cleaned of listeners
+ - intercept HTTP response to "start quiz" signal, re-compose the page without listeners and run
+
+The only way to garanty 0 internet cheat is to use some SELinux configuration in kiosk mode
+with just one safe web browser enabled, e.g. [surf](https://surf.suckless.org/).
+Not that more traditional ways of cheating may still be used (phones, talking, signs, memos...)
+
+## Alternative softwares
+
+ * [moodle](https://moodle.org)<br/>
+  Full-featured (open source!) project to manage learning activities.
+  Too big for my purpose; however qomet might be re-thought as a moodle plugin
+  (although [at least one](https://moodle.org/plugins/mod_exam) already exists for this task).
+
+ * [evalbox](https://evalbox.com/)<br/>
+  The closest to my goals, but only for simple quizzes, and not actively developed anymore.
+
+ * [wims](http://wims.unice.fr/~wims/)<br/>
+  Full-featured (and open source) training center for students, with various types of exercises,
+  possibly in exam mode too.
+  The spirit, however, is more "enhanced homework" than "internet exams".
+
+ * [socrative](https://socrative.com/)<br/>
+  Nice looking realtime feedback (lacking in evalbox), but thought for interactive classes.
+  In this perspective, I also found [educaplay](https://www.educaplay.com) appealing.
+
+ * [testmoz](https://testmoz.com/)<br/>
+  Old-fashioned look, lacking some features. Still interesting to set-up a quick test.

diff --git a/TODO_assessment_template b/TODO_assessment_template
new file mode 100644 (file)
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--- /dev/null
+++ b/TODO_assessment_template
@@ -0,0 +1,36 @@
+TODO: format général TXT: (compilé en JSON)
+
+10 (time)
+1 (fixed)
+Introduction (multiline, from third line ; \n --> <br>)
+
+[Intro q1, multiline]
+
+q1 txt
+
+answer q1 (multiline txt)
+
+q2 intro (multiline)
+
+  q2.1 [intro optional]
+
+       q2.1 txt
+
+       q2.1 options:
+       + good
+       - bad
+       - bad ...etc
+
+       answer (integer array, one line)
+
+  q2.2 [intro optional]
+
+       q2.2 txt
+
+       answer (html multiline)
+
+Conclusion (last block)
+
+=====
+
+Seems that GUI would be easier, then summary in YAML file + parse from YAML

diff --git a/app.js b/app.js
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+++ b/app.js
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+const express = require('express');
+const app = express();
+const path = require('path');
+const cookieParser = require('cookie-parser');
+const favicon = require('serve-favicon');
+const logger = require('morgan');
+const bodyParser = require('body-parser');
+const params = require(path.join(__dirname, "config", "parameters"));
+
+app.set('views', path.join(__dirname, 'views'));
+app.set('view engine', 'pug');
+app.use(favicon(path.join(__dirname, "public", "favicon", "favicon.ico")));
+if (app.get('env') === 'development')
+{
+       // Full logging in development mode
+       app.use(logger('dev'));
+}
+else
+{
+       app.set('trust proxy', true); //http://dev.rdybarra.com/2016/06/23/Production-Logging-With-Morgan-In-Express/
+       // In prod, only log error responses (https://github.com/expressjs/morgan)
+       app.use(logger('combined', {
+               skip: function (req, res) { return res.statusCode < 400 }
+       }));
+}
+app.use(bodyParser.json());
+app.use(bodyParser.urlencoded({ extended: false }));
+app.use(cookieParser());
+app.use(express.static(path.join(__dirname, 'public')));
+
+// Before any request, check cookies
+app.use(function(req, res, next) {
+       res.locals.loggedIn = !!req.cookies.token;
+       res.locals.myInitials = req.cookies.myInitials; //may be undefined
+       next();
+});
+
+// Routing
+let routes = require(path.join(__dirname, "routes", "all"));
+app.use("/", routes);
+
+// catch 404 and forward to error handler
+app.use(function(req, res, next) {
+  let err = new Error('Not Found');
+  err.status = 404;
+  next(err);
+});
+
+// Error handler
+app.use(function(err, req, res, next) {
+  // Set locals, only providing error in development
+  res.locals.message = err.message;
+  res.locals.error = req.app.get('env') === 'development' ? err : {};
+  res.status(err.status || 500);
+  res.render('error');
+});
+
+module.exports = app;

diff --git a/bin/www b/bin/www
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--- /dev/null
+++ b/bin/www
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+#!/usr/bin/env node
+
+/**
+ * Module dependencies.
+ */
+
+var app = require('../app');
+var http = require('http');
+
+/**
+ * Get port from environment and store in Express.
+ */
+
+let port = normalizePort(process.env.PORT || '3000');
+app.set('port', port);
+
+/**
+ * Create HTTP server.
+ */
+
+let server = http.createServer(app);
+
+/*
+ * CRON tasks
+ */
+
+var cron = require('node-cron');
+var UserModel = require("../models/user");
+cron.schedule('0 0 0 * * *', function() {
+       // Remove unlogged users every 24h
+       UserModel.cleanUsersDb();
+});
+
+/**
+ * Listen on provided port, on all network interfaces.
+ */
+
+server.listen(port);
+server.on('error', onError);
+server.on('listening', onListening);
+let io = require('socket.io').listen(server); //sockets too
+//https://stackoverflow.com/a/24610678/4640434
+
+/*
+ * Sockets handling
+ */
+
+require('../sockets')(io);
+
+/**
+ * Normalize a port into a number, string, or false.
+ */
+
+function normalizePort(val)
+{
+  let port = parseInt(val, 10);
+
+  if (isNaN(port)) // named pipe
+    return val;
+
+  if (port >= 0) // port number
+    return port;
+
+  return false;
+}
+
+/**
+ * Event listener for HTTP server "error" event.
+ */
+
+function onError(error)
+{
+  if (error.syscall !== 'listen')
+    throw error;
+
+  let bind = typeof port === 'string'
+    ? 'Pipe ' + port
+    : 'Port ' + port;
+
+  // handle specific listen errors with friendly messages
+  switch (error.code)
+       {
+    case 'EACCES':
+      console.error(bind + ' requires elevated privileges');
+      process.exit(1);
+      break;
+    case 'EADDRINUSE':
+      console.error(bind + ' is already in use');
+      process.exit(1);
+      break;
+    default:
+      throw error;
+  }
+}
+
+/**
+ * Event listener for HTTP server "listening" event.
+ */
+
+function onListening()
+{
+  let addr = server.address();
+  let bind = typeof addr === 'string'
+    ? 'pipe ' + addr
+    : 'port ' + addr.port;
+  console.log('Listening on ' + bind);
+}

diff --git a/config/parameters.js.dist b/config/parameters.js.dist
new file mode 100644 (file)
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--- /dev/null
+++ b/config/parameters.js.dist
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+var Parameters = {};
+
+// For mail sending. WARNING: *no trailng slash*
+Parameters.siteURL = "http://localhost";
+
+// Lifespan of a (login) cookie
+Parameters.cookieExpire = 183*24*3600*1000; //6 months in milliseconds
+
+// Characters in a login token, and period of validity (in milliseconds)
+Parameters.token = {
+       length: 16,
+       expire: 1000*60*30, //30 minutes in milliseconds
+};
+
+// Whitelist of emails (full addresses or suffixes). Leave blank to accept all
+Parameters.whitelist = [
+       "some.email@some.domain.com",
+       "another.domain.org",
+];
+
+// msmtp account name adn address from, to send (login) emails
+Parameters.mail = {
+       account: "msmtpAccount",
+       from: "addressFrom",
+};
+
+// Database settings: see https://docs.mongodb.com/manual/reference/connection-string/
+Parameters.db = {
+       user: "username",
+       password: "password",
+       host: "localhost",
+       port: "27017",
+       name: "dbname",
+};
+
+module.exports = Parameters;

diff --git a/entities/assessment.js b/entities/assessment.js
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--- /dev/null
+++ b/entities/assessment.js
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+const db = require("../utils/database");
+
+const AssessmentEntity =
+{
+       /*
+        * Structure:
+        *   _id: BSON id
+        *   cid: course ID
+        *   name: varchar
+        *   active: boolean true/false
+        *   mode: secure | exam | open (decreasing security)
+        *   fixed: bool (questions in fixed order; default: false)
+        *   display: "one" or "all" (generally "all" for open questions, but...)
+        *   time: 0, //<=0 means "untimed"; otherwise, time in seconds
+        *   introduction: "",
+        *   conclusion: "https://www.youtube.com/watch?v=6-9AjToJYuw",
+        *   coefficient: number, default 1
+        *   questions: array of
+        *     index: for paper test, like 2.1.a (?!); and quiz: 0, 1, 2, 3...
+        *     wording: varchar (HTML)
+        *     options: array of varchar --> if present, question type == quiz!
+        *     fixed: bool, options in fixed order (default: false)
+        *     answer: array of integers (for quiz) or html text (for paper); striped in exam mode
+        *     active: boolean, is question in current assessment? --> striped if inactive!
+        *     points: points for this question (default 1)
+        *   papers : array of
+        *     number: student number
+        *     inputs: array of indexed arrays of integers (or html text if not quiz)
+        *     startTime, endTime
+        *     password: random string identifying student for exam session TEMPORARY
+        */
+
+       getById: function(aid, callback)
+       {
+               db.assessments.findOne(
+                       { _id: aid },
+                       callback
+               );
+       },
+
+       getByPath: function(cid, name, callback)
+       {
+               db.assessments.findOne(
+                       {
+                               cid: cid,
+                               name: name,
+                       },
+                       callback
+               );
+       },
+
+       insert: function(cid, name, callback)
+       {
+               db.assessments.insert(
+                       {
+                               name: name,
+                               cid: cid,
+                               active: false,
+                               mode: "exam",
+                               fixed: false,
+                               display: "one",
+                               time: 0,
+                               introduction: "",
+                               conclusion: "",
+                               coefficient: 1,
+                               questions: [ ],
+                               papers: [ ],
+                       },
+                       callback
+               );
+       },
+
+       getByCourse: function(cid, callback)
+       {
+               db.assessments.find(
+                       { cid: cid },
+                       callback
+               );
+       },
+
+       // arg: full assessment without _id field
+       replace: function(aid, assessment, cb)
+       {
+               // Should be: (but unsupported by mongojs)
+//             db.assessments.replaceOne(
+//                     { _id: aid },
+//                     assessment,
+//                     cb
+//             );
+               // Temporary workaround:
+               db.assessments.update(
+                       { _id: aid },
+                       { $set: assessment },
+                       cb
+               );
+       },
+
+       getQuestions: function(aid, callback)
+       {
+               db.assessments.findOne(
+                       { _id: aid },
+                       { questions: 1},
+                       (err,res) => {
+                               callback(err, !!res ? res.questions : null);
+                       }
+               );
+       },
+
+       startSession: function(aid, number, password, callback)
+       {
+               // TODO: security, do not re-do tasks if already done
+               db.assessments.update(
+                       { _id: aid },
+                       { $push: { papers: {
+                               number: number,
+                               startTime: Date.now(),
+                               endTime: undefined,
+                               password: password,
+                               inputs: [ ], //TODO: this is stage 1, stack indexed answers.
+                               // then build JSON tree for easier access / correct
+                       }}},
+                       callback
+               );
+       },
+
+       // https://stackoverflow.com/questions/27874469/mongodb-push-in-nested-array
+       setInput: function(aid, number, password, input, callback) //input: index + arrayOfInt (or txt)
+       {
+               db.assessments.update(
+                       {
+                               _id: aid,
+                               "papers.number": number,
+                               "papers.password": password,
+                       },
+                       { $push: { "papers.$.inputs": input } },
+                       callback
+               );
+       },
+
+       endAssessment: function(aid, number, password, callback)
+       {
+               db.assessments.update(
+                       {
+                               _id: aid,
+                               "papers.number": number,
+                               "papers.password": password,
+                       },
+                       { $set: {
+                               "papers.$.endTime": Date.now(),
+                               "papers.$.password": "",
+                       } },
+                       callback
+               );
+       },
+
+       getConclusion: function(aid, callback)
+       {
+               db.assessments.findOne(
+                       { _id: aid },
+                       { conclusion: 1},
+                       (err,res) => {
+                               callback(err, !!res ? res.conclusion : null);
+                       }
+               );
+       },
+
+       remove: function(aid, cb)
+       {
+               db.assessments.remove(
+                       { _id: aid },
+                       cb
+               );
+       },
+
+       removeGroup: function(cid, cb)
+       {
+               db.assessments.remove(
+                       { cid: cid },
+                       cb
+               );
+       },
+}
+
+module.exports = AssessmentEntity;

diff --git a/entities/course.js b/entities/course.js
new file mode 100644 (file)
index 0000000..66fcaee
--- /dev/null
+++ b/entities/course.js
@@ -0,0 +1,100 @@
+const db = require("../utils/database");
+
+const CourseEntity =
+{
+       /*
+        * Structure:
+        *   _id: BSON id
+        *   uid: prof ID
+        *   code: varchar
+        *   description: varchar
+        *   password: monitoring password hash
+        *   students: array of
+        *     number: student number
+        *     forename: varchar
+        *     name: varchar
+        *     group: integer
+        */
+
+       getByUser: function(uid, callback)
+       {
+               db.courses.find(
+                       { uid: uid },
+                       callback
+               );
+       },
+
+       getById: function(cid, callback)
+       {
+               db.courses.findOne(
+                       { _id: cid },
+                       callback
+               );
+       },
+
+       getByPath: function(uid, code, callback)
+       {
+               db.courses.findOne(
+                       {
+                               $and: [
+                                       { uid: uid },
+                                       { code: code },
+                               ]
+                       },
+                       callback
+               );
+       },
+
+       insert: function(uid, code, description, cb)
+       {
+               db.courses.insert(
+                       {
+                               uid: uid,
+                               code: code,
+                               description: description,
+                               students: [ ],
+                       },
+                       cb);
+       },
+
+       setStudents: function(cid, students, cb)
+       {
+               db.courses.update(
+                       { _id: cid },
+                       { $set: { students: students } },
+                       cb
+               );
+       },
+
+       // Note: return { students: { ... } }, pointing on the requested row
+       getStudent: function(cid, number, cb)
+       {
+               db.courses.findOne(
+                       { _id: cid },
+                       {
+                               _id: 0,
+                               students: { $elemMatch: {number: number} }
+                       },
+                       cb
+               );
+       },
+
+       setPassword: function(cid, pwd, cb)
+       {
+               db.courses.update(
+                       { _id: cid },
+                       { $set: { password: pwd } },
+                       cb
+               );
+       },
+
+       remove: function(cid, cb)
+       {
+               db.courses.remove(
+                       { _id: cid },
+                       cb
+               );
+       },
+}
+
+module.exports = CourseEntity;

diff --git a/entities/user.js b/entities/user.js
new file mode 100644 (file)
index 0000000..1026eaf
--- /dev/null
+++ b/entities/user.js
@@ -0,0 +1,146 @@
+const db = require("../utils/database");
+
+const UserEntity =
+{
+       /*
+        * Structure:
+        *   _id: BSON id
+        *   ** Strings, identification informations:
+        *   email
+        *   forename
+        *   name
+        *   initials : computed, Benjamin Auder --> ba ...etc
+        *   loginToken: {
+        *     value: string
+        *     timestamp: datetime (validity)
+        *     ip: address of requesting machine
+        *   }
+        *   sessionTokens (array): cookie identification
+        */
+
+       getInitialsByPrefix: function(prefix, cb)
+       {
+               db.users.find(
+                       { initials: new RegExp("^" + prefix) },
+                       { initials: 1, _id: 0 },
+                       cb
+               );
+       },
+
+       insert: function(newUser, cb)
+       {
+               db.users.insert(Object.assign({},
+                       newUser,
+                       {
+                               loginToken: { },
+                               sessionTokens: [ ],
+                       }),
+                       cb
+               );
+       },
+
+       getByLoginToken: function(token, cb)
+       {
+               db.users.findOne(
+                       { "loginToken.value": token },
+                       cb
+               );
+       },
+
+       getBySessionToken: function(token, cb)
+       {
+               db.users.findOne(
+                       { sessionTokens: token},
+                       cb
+               );
+       },
+
+       getById: function(uid, cb)
+       {
+               db.users.findOne(
+                       { _id: uid },
+                       cb
+               );
+       },
+
+       getByEmail: function(email, cb)
+       {
+               db.users.findOne(
+                       { email: email },
+                       cb
+               );
+       },
+
+       getByInitials: function(initials, cb)
+       {
+               db.users.findOne(
+                       { initials: initials },
+                       cb
+               );
+       },
+
+       getUnlogged: function(cb)
+       {
+               var tsNow = new Date().getTime();
+               // 86400000 = 24 hours in milliseconds
+               var day = 86400000;
+               db.users.find({}, (err,userArray) => {
+                       let unlogged = userArray.filter( u => {
+                               return u.sessionTokens.length==0 && u._id.getTimestamp().getTime() + day < tsNow;
+                       });
+                       cb(err, unlogged);
+               });
+       },
+
+       getAll: function(cb)
+       {
+               db.users.find({}, cb);
+       },
+
+       setLoginToken: function(token, uid, ip, cb)
+       {
+               db.users.update(
+                       { _id: uid },
+                       { $set: { loginToken: {
+                                       value: token,
+                                       timestamp: new Date().getTime(),
+                                       ip: ip,
+                               }}
+                       },
+                       cb
+               );
+       },
+
+       setSessionToken: function(token, uid, cb)
+       {
+               // Also empty the login token to invalidate future attempts
+               db.users.update(
+                       { _id: uid },
+                       {
+                               $set: { loginToken: {} },
+                               $push: { sessionTokens: {
+                                       $each: [token],
+                                       $slice: -7 //only allow 7 simultaneous connections per user (TODO?)
+                               }}
+                       },
+                       cb
+               );
+       },
+
+       removeToken: function(uid, token, cb)
+       {
+               db.users.update(
+                       { _id: uid },
+                       { $pull: {sessionTokens: token} },
+                       cb
+               );
+       },
+
+       // TODO: later, allow account removal
+       remove: function(uids)
+       {
+               db.users.remove({_id: uids});
+       },
+}
+
+module.exports = UserEntity;

diff --git a/gulpfile.js b/gulpfile.js
new file mode 100644 (file)
index 0000000..a1286c5
--- /dev/null
+++ b/gulpfile.js
@@ -0,0 +1,19 @@
+var gulp = require('gulp');
+var nodemon = require('gulp-nodemon'); //reload server on changes
+
+var nodemonOptions = {
+       script: 'bin/www',
+       ext: 'js',
+       env: { 'NODE_ENV': 'development' },
+       verbose: true,
+       watch: ['./','config','utils','routes','models','entities']
+};
+
+// TODO: tasks for uglify / sass / use webpack
+
+gulp.task('server', function () {
+       nodemon(nodemonOptions)
+       .on('restart', function () {
+               console.log('restarted!')
+       });
+});

diff --git a/models/assessment.js b/models/assessment.js
new file mode 100644 (file)
index 0000000..3f89cc9
--- /dev/null
+++ b/models/assessment.js
@@ -0,0 +1,85 @@
+const AssessmentEntity = require("../entities/assessment");
+const CourseEntity = require("../entities/course");
+const ObjectId = require("bson-objectid");
+const UserEntity = require("../entities/user");
+const TokenGen = require("../utils/tokenGenerator");
+
+const AssessmentModel =
+{
+       getByRefs: function(initials, code, name, cb)
+       {
+               UserEntity.getByInitials(initials, (err,user) => {
+                       if (!!err || !user)
+                               return cb(err || {errmsg: "User not found"});
+                       CourseEntity.getByPath(user._id, code, (err2,course) => {
+                               if (!!err2 || !course)
+                                       return cb(err2 || {errmsg: "Course not found"});
+                               AssessmentEntity.getByPath(course._id, name, (err3,assessment) => {
+                                       if (!!err3 || !assessment)
+                                               return cb(err3 || {errmsg: "Assessment not found"});
+                                       cb(null,assessment);
+                               });
+                       });
+               });
+       },
+
+       add: function(uid, cid, name, cb)
+       {
+               // 1) Check that course is owned by user of ID uid
+               CourseEntity.getById(cid, (err,course) => {
+                       if (!!err || !course)
+                               return cb({errmsg: "Course retrieval failure"});
+                       if (!course.uid.equals(uid))
+                               return cb({errmsg:"Not your course"},undefined);
+                       // 2) Insert new blank assessment
+                       AssessmentEntity.insert(cid, name, cb);
+               });
+       },
+
+       update: function(uid, assessment, cb)
+       {
+               const qid = ObjectId(assessment._id);
+               // 1) Check that assessment is owned by user of ID uid
+               AssessmentEntity.getById(qid, (err,assessmentOld) => {
+                       if (!!err || !assessmentOld)
+                               return cb({errmsg: "Assessment retrieval failure"});
+                       CourseEntity.getById(ObjectId(assessmentOld.cid), (err2,course) => {
+                               if (!!err2 || !course)
+                                       return cb({errmsg: "Course retrieval failure"});
+                               if (!course.uid.equals(uid))
+                                       return cb({errmsg:"Not your course"},undefined);
+                               // 2) Replace assessment
+                               delete assessment["_id"];
+                               assessment.cid = ObjectId(assessment.cid);
+                               AssessmentEntity.replace(qid, assessment, cb);
+                       });
+               });
+       },
+
+       // Set password in responses collection
+       startSession: function(aid, number, cb)
+       {
+               const password = TokenGen.generate(12); //arbitrary number, 12 seems enough...
+               AssessmentEntity.getQuestions(aid, (err,questions) => {
+                       AssessmentEntity.startSession(aid, number, password, (err2,ret) => {
+                               cb(err, {
+                                       questions: questions,
+                                       password: password,
+                               });
+                       });
+               });
+       },
+
+       endSession: function(aid, number, password, cb)
+       {
+               AssessmentEntity.endAssessment(aid, number, password, (err,ret) => {
+                       if (!!err || !ret)
+                               return cb(err,ret);
+                       AssessmentEntity.getConclusion(aid, (err2,conclusion) => {
+                               cb(err2, {conclusion:conclusion});
+                       });
+               });
+       },
+};
+
+module.exports = AssessmentModel;

diff --git a/models/course.js b/models/course.js
new file mode 100644 (file)
index 0000000..53419c1
--- /dev/null
+++ b/models/course.js
@@ -0,0 +1,74 @@
+const CourseEntity = require("../entities/course");
+const UserEntity = require("../entities/user");
+const AssessmentEntity = require("../entities/assessment");
+
+const CourseModel =
+{
+       getByInitials: function(initials, callback)
+       {
+               UserEntity.getByInitials(initials, (err,user) => {
+                       if (!!err || !user)
+                               callback(err, []);
+                       else
+                       {
+                               CourseEntity.getByUser(user._id, (err2,courseArray) => {
+                                       callback(err2, courseArray);
+                               });
+                       }
+               });
+       },
+
+       getByRefs: function(initials, code, callback)
+       {
+               UserEntity.getByInitials(initials, (err,user) => {
+                       if (!!err || !user)
+                               callback(err, []);
+                       else
+                       {
+                               CourseEntity.getByPath(user._id, code, (err2,course) => {
+                                       callback(err2, course);
+                               });
+                       }
+               });
+       },
+
+       importStudents: function(uid, cid, students, cb)
+       {
+               // 1) check if uid == course uid
+               CourseEntity.getById(cid, (err,course) => {
+                       if (!!err || !course || !course.uid.equals(uid))
+                               return cb({errmsg:"Not your course"},{});
+                       // 2) Set students
+                       CourseEntity.setStudents(cid, students, cb);
+               });
+       },
+
+       setPassword: function(uid, cid, pwd, cb)
+       {
+               // 1) check if uid == course uid
+               CourseEntity.getById(cid, (err,course) => {
+                       if (!!err || !course || !course.uid.equals(uid))
+                               return cb({errmsg:"Not your course"},{});
+                       // 2) Insert new student (overwrite if number already exists)
+                       CourseEntity.setPassword(cid, pwd, cb);
+               });
+       },
+
+       remove: function(uid, cid, cb)
+       {
+               // 1) check if uid == course uid
+               CourseEntity.getById(cid, (err,course) => {
+                       if (!!err || !course || !course.uid.equals(uid))
+                               return cb({errmsg:"Not your course"},{});
+                       // 2) remove all associated assessments
+                       AssessmentEntity.removeGroup(cid, (err2,ret) => {
+                               if (!!err)
+                                       return cb(err,{});
+                               // 3) remove course (with its students)
+                               CourseEntity.remove(cid, cb);
+                       });
+               });
+       },
+}
+
+module.exports = CourseModel;

diff --git a/models/user.js b/models/user.js
new file mode 100644 (file)
index 0000000..f495bdc
--- /dev/null
+++ b/models/user.js
@@ -0,0 +1,60 @@
+const UserEntity = require("../entities/user");
+const params = require("../config/parameters");
+
+const UserModel =
+{
+       create: function(newUser, callback)
+       {
+               // Determine initials from forename+name
+               let forenameParts = newUser.forename.split(/[ -]+/);
+               let nameParts = newUser.name.split(/[ -]+/);
+               let initials =
+                       forenameParts.map( n => { return n.charAt(0).toLowerCase(); }).join("") +
+                       nameParts.map( n => { return n.charAt(0).toLowerCase(); }).join("");
+               // First retrieve all users with similar prefix initials
+               UserEntity.getInitialsByPrefix(initials, (err,userArray) => {
+                       if (!!userArray && userArray.length == 1)
+                               initials = initials + "2"; //thus number == users count for this hash
+                       else if (!!userArray && userArray.length > 1)
+                       {
+                               // Pick the highest number after initials (if any), and increment
+                               let numbers = userArray.map( u => {
+                                       let digitMatch = u.initials.match(/[0-9]/);
+                                       if (!digitMatch)
+                                               return 1; //irrelevant
+                                       let firstDigit = digitMatch.index;
+                                       return parseInt(u.initials.slice(digitMatch.index));
+                               });
+                               initials = initials + (Math.max(...numbers)+1);
+                       }
+                       Object.assign(newUser, {initials: initials});
+                       UserEntity.insert(newUser, callback);
+               });
+       },
+
+       whitelistCheck: function(email)
+       {
+               if (params.whitelist.length == 0)
+                       return true; //no whitelist, everyone allowed
+               for (let w of params.whitelist)
+               {
+                       if ((w.indexOf('@') >= 0 && w==email) || !!email.match(new RegExp(w+"$")))
+                               return true;
+               }
+               return false;
+       },
+
+       logout: function(uid, token, cb)
+       {
+               UserEntity.removeToken(uid, token, cb);
+       },
+
+       cleanUsersDb: function()
+       {
+               UserEntity.getUnlogged( (err,unlogged) => {
+                       UserEntity.remove(unlogged);
+               });
+       },
+}
+
+module.exports = UserModel;

diff --git a/package-lock.json b/package-lock.json
new file mode 100644 (file)
index 0000000..7cd2e0e
--- /dev/null
+++ b/package-lock.json
@@ -0,0 +1,5833 @@
+{
+  "name": "qcm",
+  "version": "0.1.0",
+  "lockfileVersion": 1,
+  "requires": true,
+  "dependencies": {
+    "abbrev": {
+      "version": "1.1.1",
+      "resolved": "https://registry.npmjs.org/abbrev/-/abbrev-1.1.1.tgz",
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+      "dev": true
+    },
+    "accepts": {
+      "version": "1.3.4",
+      "resolved": "https://registry.npmjs.org/accepts/-/accepts-1.3.4.tgz",
+      "integrity": "sha1-hiRnWMfdbSGmR0/whKR0DsBesh8=",
+      "requires": {
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+        "negotiator": "0.6.1"
+      }
+    },
+    "acorn": {
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+      "resolved": "https://registry.npmjs.org/acorn/-/acorn-3.3.0.tgz",
+      "integrity": "sha1-ReN/s56No/JbruP/U2niu18iAXo="
+    },
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+      "resolved": "https://registry.npmjs.org/acorn-globals/-/acorn-globals-3.1.0.tgz",
+      "integrity": "sha1-/YJw9x+7SZawBPqIDuXUZXOnMb8=",
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diff --git a/package.json b/package.json
new file mode 100644 (file)
index 0000000..01e7eb6
--- /dev/null
+++ b/package.json
@@ -0,0 +1,34 @@
+{
+  "name": "qcm",
+  "version": "0.1.0",
+  "description": "QCM tool for exams",
+  "main": "bin/www",
+  "scripts": {
+    "start": "gulp server",
+    "test": "echo \"Error: no test specified\" && exit 1"
+  },
+  "repository": {
+    "type": "git",
+    "url": "git@auder.net:qcm"
+  },
+  "author": "Benjamin Auder",
+  "license": "ISC",
+  "dependencies": {
+    "body-parser": "^1.18.2",
+    "bson-objectid": "^1.2.2",
+    "cookie-parser": "^1.4.3",
+    "express": "^4.16.2",
+    "mongojs": "^2.4.1",
+    "morgan": "^1.9.0",
+    "node-cron": "^1.2.1",
+    "pug": "^2.0.0-rc.4",
+    "sanitize-html": "^1.16.3",
+    "serve-favicon": "^2.4.5",
+    "socket.io": "^2.0.4",
+    "underscore": "^1.8.3"
+  },
+  "devDependencies": {
+    "gulp": "^3.9.1",
+    "gulp-nodemon": "^2.2.1"
+  }
+}

diff --git a/public/favicon/LICENSE b/public/favicon/LICENSE
new file mode 100644 (file)
index 0000000..a76e70e
--- /dev/null
+++ b/public/favicon/LICENSE
@@ -0,0 +1,3 @@
+This favicon is generated from an iconscout icon, thus falling under the
+iconscout regular license https://iconscout.com/legal#licenses
+You can use it freely on your website, but (of course) not sell it

diff --git a/public/favicon/android-chrome-192x192.png b/public/favicon/android-chrome-192x192.png
new file mode 100644 (file)
index 0000000..8ec0b88
--- /dev/null
+++ b/public/favicon/android-chrome-192x192.png
@@ -0,0 +1 @@
+#$# git-fat bcd031181c55c67ab221bbfbd562f49a2c902137                 3725

diff --git a/public/favicon/android-chrome-512x512.png b/public/favicon/android-chrome-512x512.png
new file mode 100644 (file)
index 0000000..b14c7da
--- /dev/null
+++ b/public/favicon/android-chrome-512x512.png
@@ -0,0 +1 @@
+#$# git-fat 6fddf2e88ddc418b4b1e6c436dbaaf780bf2497b                 8261

diff --git a/public/favicon/apple-touch-icon.png b/public/favicon/apple-touch-icon.png
new file mode 100644 (file)
index 0000000..3b5e1b4
--- /dev/null
+++ b/public/favicon/apple-touch-icon.png
@@ -0,0 +1 @@
+#$# git-fat 6c5687f8cea00ad423475093f0854bce975baf8c                 3434

diff --git a/public/favicon/browserconfig.xml b/public/favicon/browserconfig.xml
new file mode 100644 (file)
index 0000000..28c1987
--- /dev/null
+++ b/public/favicon/browserconfig.xml
@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="utf-8"?>
+<browserconfig>
+    <msapplication>
+        <tile>
+            <square150x150logo src="/favicon/mstile-150x150.png"/>
+            <TileColor>#00aba9</TileColor>
+        </tile>
+    </msapplication>
+</browserconfig>

diff --git a/public/favicon/favicon-16x16.png b/public/favicon/favicon-16x16.png
new file mode 100644 (file)
index 0000000..56089aa
--- /dev/null
+++ b/public/favicon/favicon-16x16.png
@@ -0,0 +1 @@
+#$# git-fat b45cbbb34d4b06f9b079197b17f98196ddc5dc92                  638

diff --git a/public/favicon/favicon-32x32.png b/public/favicon/favicon-32x32.png
new file mode 100644 (file)
index 0000000..623c953
--- /dev/null
+++ b/public/favicon/favicon-32x32.png
@@ -0,0 +1 @@
+#$# git-fat 5d804a72b035e65b9eec08b5dfb0a5dca5bf4edf                 1017

diff --git a/public/favicon/favicon.ico b/public/favicon/favicon.ico
new file mode 100644 (file)
index 0000000..ca71ccc
--- /dev/null
+++ b/public/favicon/favicon.ico
@@ -0,0 +1 @@
+#$# git-fat 40682600e89f78aca3ceabe47b3d057b4abd7396                15086

diff --git a/public/favicon/manifest.json b/public/favicon/manifest.json
new file mode 100644 (file)
index 0000000..9e4641d
--- /dev/null
+++ b/public/favicon/manifest.json
@@ -0,0 +1,18 @@
+{
+    "name": "",
+    "icons": [
+        {
+            "src": "/favicon/android-chrome-192x192.png",
+            "sizes": "192x192",
+            "type": "image/png"
+        },
+        {
+            "src": "/favicon/android-chrome-512x512.png",
+            "sizes": "512x512",
+            "type": "image/png"
+        }
+    ],
+    "theme_color": "#ffffff",
+    "background_color": "#ffffff",
+    "display": "standalone"
+}
\ No newline at end of file

diff --git a/public/favicon/mstile-150x150.png b/public/favicon/mstile-150x150.png
new file mode 100644 (file)
index 0000000..fdccdda
--- /dev/null
+++ b/public/favicon/mstile-150x150.png
@@ -0,0 +1 @@
+#$# git-fat 92f6a68050f68b6785ca67e80907474a5e1acaf2                 2609

diff --git a/public/favicon/safari-pinned-tab.svg b/public/favicon/safari-pinned-tab.svg
new file mode 100644 (file)
index 0000000..43b36f9
--- /dev/null
+++ b/public/favicon/safari-pinned-tab.svg
@@ -0,0 +1 @@
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diff --git a/public/javascripts/assessment.js b/public/javascripts/assessment.js
new file mode 100644 (file)
index 0000000..1db80a0
--- /dev/null
+++ b/public/javascripts/assessment.js
@@ -0,0 +1,415 @@
+let socket = null; //monitor answers in real time
+
+function checkWindowSize()
+{
+       if (assessment.mode == "secure")
+       {
+               // NOTE: temporarily accept smartphone (security hole: pretend being a smartphone on desktop browser...)
+               if (navigator.userAgent.match(/(iPhone|iPod|iPad|Android|BlackBerry)/))
+                       return true;
+               let test = () => {
+                       return window.innerWidth < screen.width || window.innerHeight < screen.height;
+               };
+               const returnVal = test;
+               while (!test)
+                       alert("Please enter fullscreen mode (F11)");
+               return returnVal;
+       }
+       return true;
+};
+
+function libsRefresh()
+{
+       $("#statements").find("code[class^=language-]").each( (i,elem) => {
+               Prism.highlightElement(elem);
+       });
+       MathJax.Hub.Queue(["Typeset",MathJax.Hub,"statements"]);
+};
+
+// TODO: if display == "all", les envois devraient être non définitifs (possibilité de corriger)
+// Et, blur sur une (sous-)question devrait envoyer la version courante de la sous-question
+
+let V = new Vue({
+       el: "#assessment",
+       data: {
+               assessment: assessment,
+               inputs: [ ], //student's answers
+               student: { }, //filled later
+               // Stage 0: unauthenticated (number),
+               //       1: authenticated (got a name, unvalidated)
+               //       2: locked: password set, exam started
+               //       3: completed
+               //       4: show answers
+               stage: assessment.mode != "open" ? 0 : 1,
+               remainingTime: 0, //global, in seconds
+       },
+       components: {
+               "statements": {
+                       props: ['assessment','inputs','student','stage'],
+                       data: function() {
+                               return {
+                                       index: 0, //current question index in assessment.indices
+                               };
+                       },
+                       mounted: function() {
+                               if (assessment.mode != "secure")
+                                       return;
+                               $("#warning").modal({
+                                       complete: () => {
+                                               this.stage = 2;
+                                               this.resumeAssessment();
+                                       },
+                               });
+                               window.addEventListener("blur", () => {
+                                       if (this.stage == 2)
+                                               this.showWarning();
+                               }, false);
+                               window.addEventListener("resize", e => {
+                                       if (this.stage == 2 && !checkWindowSize())
+                                               this.showWarning();
+                               }, false);
+                               //socket.on("disconnect", () => { }); //TODO: notify monitor (highlight red)
+                       },
+                       updated: function() {
+                               libsRefresh();
+                       },
+                       // TODO: general render function for nested exercises
+                       // TODO: with answer if stage==4 : class "wrong" if ticked AND stage==4 AND received answers
+                       // class "right" if stage == 4 AND received answers (background-color: red / green)
+                       // There should be a questions navigator below, or next (visible if display=='all')
+                       // Full questions tree is rendered, but some parts hidden depending on display settings
+                       render(h) {
+                               let self = this;
+                               let questions = assessment.questions.map( (q,i) => {
+                                       let questionContent = [ ];
+                                       questionContent.push(
+                                               h(
+                                                       "div",
+                                                       {
+                                                               "class": {
+                                                                       "wording": true,
+                                                               },
+                                                               domProps: {
+                                                                       innerHTML: q.wording,
+                                                               },
+                                                       }
+                                               )
+                                       );
+                                       let optionsOrder = _.range(q.options.length);
+                                       if (!q.fixed)
+                                               optionsOrder = _.shuffle(optionsOrder);
+                                       let optionList = [ ];
+                                       optionsOrder.forEach( idx => {
+                                               let option = [ ];
+                                               option.push(
+                                                       h(
+                                                               "input",
+                                                               {
+                                                                       domProps: {
+                                                                               checked: this.inputs[i][idx],
+                                                                       },
+                                                                       attrs: {
+                                                                               id: this.inputId(i,idx),
+                                                                               type: "checkbox",
+                                                                       },
+                                                                       on: {
+                                                                               change: e => { this.inputs[i][idx] = e.target.checked; },
+                                                                       },
+                                                               },
+                                                       )
+                                               );
+                                               option.push(
+                                                       h(
+                                                               "label",
+                                                               {
+                                                                       domProps: {
+                                                                               innerHTML: q.options[idx],
+                                                                       },
+                                                                       attrs: {
+                                                                               "for": this.inputId(i,idx),
+                                                                       },
+                                                               }
+                                                       )
+                                               );
+                                               optionList.push(
+                                                       h(
+                                                               "div",
+                                                               {
+                                                                       "class": {
+                                                                               option: true,
+                                                                               choiceCorrect: this.stage == 4 && assessment.questions[i].answer.includes(idx),
+                                                                               choiceWrong: this.stage == 4 && this.inputs[i][idx] && !assessment.questions[i].answer.includes(idx),
+                                                                       },
+                                                               },
+                                                               option
+                                                       )
+                                               );
+                                       });
+                                       questionContent.push(
+                                               h(
+                                                       "div",
+                                                       {
+                                                               "class": {
+                                                                       optionList: true,
+                                                               },
+                                                       },
+                                                       optionList
+                                               )
+                                       );
+                                       return h(
+                                               "div",
+                                               {
+                                                       "class": {
+                                                               "question": true,
+                                                               "hide": this.stage == 2 && assessment.display == 'one' && assessment.indices[this.index] != i,
+                                                       },
+                                               },
+                                               questionContent
+                                       );
+                               });
+                               if (this.stage == 2)
+                               {
+                                       // TODO: one button per question
+                                       questions.unshift(
+                                               h(
+                                                       "button",
+                                                       {
+                                                               "class": {
+                                                                       "waves-effect": true,
+                                                                       "waves-light": true,
+                                                                       "btn": true,
+                                                               },
+                                                               on: {
+                                                                       click: () => this.sendAnswer(assessment.indices[this.index]),
+                                                               },
+                                                       },
+                                                       "Send"
+                                               )
+                                       );
+                               }
+                               return h(
+                                       "div",
+                                       {
+                                               attrs: {
+                                                       id: "statements",
+                                               },
+                                       },
+                                       questions
+                               );
+                       },
+                       methods: {
+                               // HELPERS:
+                               inputId: function(i,j) {
+                                       return "q" + i + "_" + "input" + j;
+                               },
+                               showWarning: function(action) {
+                                       this.sendAnswer(assessment.indices[this.index]);
+                                       this.stage = 32; //fictive stage to hide all elements
+                                       $("#warning").modal('open');
+                               },
+                               // stage 2
+                               sendAnswer: function(realIndex) {
+                                       if (this.index == assessment.questions.length - 1)
+                                               this.$emit("gameover");
+                                       else
+                                               this.index++;
+                                       if (assessment.mode == "open")
+                                               return; //only local
+                                       let answerData = {
+                                               aid: assessment._id,
+                                               answer: JSON.stringify({
+                                                       index:realIndex.toString(),
+                                                       input:this.inputs[realIndex]
+                                                               .map( (tf,i) => { return {val:tf,idx:i}; } )
+                                                               .filter( item => { return item.val; })
+                                                               .map( item => { return item.idx; })
+                                               }),
+                                               number: this.student.number,
+                                               password: this.student.password,
+                                       };
+                                       $.ajax("/send/answer", {
+                                               method: "GET",
+                                               data: answerData,
+                                               dataType: "json",
+                                               success: ret => {
+                                                       if (!!ret.errmsg)
+                                                               return alert(ret.errmsg);
+                                                       //socket.emit(message.newAnswer, answer);
+                                               },
+                                       });
+                               },
+                               // stage 2 after blur or resize
+                               resumeAssessment: function() {
+                                       checkWindowSize();
+                               },
+                       },
+               },
+       },
+       mounted: function() {
+               window.addEventListener("keydown", e => {
+                       // If F12 or ctrl+shift (ways to access devtools)
+                       if (e.keyCode == 123 || (e.ctrlKey && e.shiftKey))
+                               e.preventDefault();
+               }, false);
+               // Devtools detect based on https://jsfiddle.net/ebhjxfwv/4/
+               let div = document.createElement('div');
+               let devtoolsLoop = setInterval(
+                       () => {
+                               if (assessment.mode != "open")
+                               {
+                                       console.log(div);
+                                       console.clear();
+                               }
+                       },
+                       1000
+               );
+               Object.defineProperty(div, "id", {
+                       get: () => {
+                               clearInterval(devtoolsLoop);
+                               if (assessment.mode != "open")
+                               {
+                                       if (this.stage == 2)
+                                               this.endAssessment();
+                                       document.location.href = "/nodevtools";
+                               }
+                       }
+               });
+       },
+       computed: {
+               countdown: function() {
+                       let seconds = this.remainingTime % 60;
+                       let minutes = Math.floor(this.remainingTime / 60);
+                       return this.padWithZero(minutes) + ":" + this.padWithZero(seconds);
+               },
+       },
+       methods: {
+               // HELPERS:
+               padWithZero: function(x) {
+                       if (x < 10)
+                               return "0" + x;
+                       return x;
+               },
+               // stage 0 --> 1
+               getStudent: function(cb) {
+                       $.ajax("/get/student", {
+                               method: "GET",
+                               data: {
+                                       number: this.student.number,
+                                       cid: assessment.cid,
+                               },
+                               dataType: "json",
+                               success: s => {
+                                       if (!!s.errmsg)
+                                               return alert(s.errmsg);
+                                       this.stage = 1;
+                                       this.student = s.student;
+                                       Vue.nextTick( () => { Materialize.updateTextFields(); });
+                                       if (!!cb)
+                                               cb();
+                               },
+                       });
+               },
+               // stage 1 --> 0
+               cancelStudent: function() {
+                       this.stage = 0;
+               },
+               // stage 1 --> 2 (get all questions, set password)
+               startAssessment: function() {
+                       checkWindowSize();
+                       let initializeStage2 = questions => {
+                               $("#leftButton, #rightButton").hide();
+                               if (assessment.time > 0)
+                               {
+                                       this.remainingTime = assessment.time * 60;
+                                       this.runTimer();
+                               }
+                               // Initialize structured answer(s) based on questions type and nesting (TODO: more general)
+                               if (!!questions)
+                                       assessment.questions = questions;
+                               for (let q of assessment.questions)
+                                       this.inputs.push( _(q.options.length).times( _.constant(false) ) );
+                               assessment.indices = assessment.fixed
+                                       ? _.range(assessment.questions.length)
+                                       : _.shuffle( _.range(assessment.questions.length) );
+                               this.stage = 2;
+                               Vue.nextTick( () => { libsRefresh(); });
+                       };
+                       if (assessment.mode == "open")
+                               return initializeStage2();
+                       $.ajax("/start/assessment", {
+                               method: "GET",
+                               data: {
+                                       number: this.student.number,
+                                       aid: assessment._id
+                               },
+                               dataType: "json",
+                               success: s => {
+                                       if (!!s.errmsg)
+                                               return alert(s.errmsg);
+                                       this.student.password = s.password;
+                                       // Got password: students answers locked to this page until potential teacher
+                                       // action (power failure, computer down, ...)
+                                       // TODO: password also exchanged by sockets to check identity
+                                       //socket = io.connect("/" + assessment.name, {
+                                       //      query: "number=" + this.student.number + "&password=" + this.password
+                                       //});
+                                       //socket.on(message.allAnswers, this.setAnswers);
+                                       initializeStage2(s.questions);
+                               },
+                       });
+               },
+               // stage 2
+               runTimer: function() {
+                       if (assessment.time <= 0)
+                               return;
+                       let self = this;
+                       setInterval( function() {
+                               self.remainingTime--;
+                               if (self.remainingTime <= 0 || self.stage >= 4)
+                                       self.endAssessment();
+                                       clearInterval(this);
+                       }, 1000);
+               },
+               // stage 2 after disconnect (socket)
+               resumeAssessment: function() {
+                       // UNIMPLEMENTED
+                       // TODO: get stored answers (papers[number cookie]), inject (inputs), set index+indices
+               },
+               // stage 2 --> 3 (or 4)
+               // from a message by statements component
+               endAssessment: function() {
+                       // If time over or cheating: set endTime, destroy password
+                       $("#leftButton, #rightButton").show();
+                       //this.sendAnswer(...); //TODO: for each non-answered (and non-empty!) index (yet)
+                       if (assessment.mode != "open")
+                       {
+                               $.ajax("/end/assessment", {
+                                       method: "GET",
+                                       data: {
+                                               aid: assessment._id,
+                                               number: this.student.number,
+                                               password: this.student.password,
+                                       },
+                                       dataType: "json",
+                                       success: ret => {
+                                               if (!!ret.errmsg)
+                                                       return alert(ret.errmsg);
+                                               assessment.conclusion = ret.conclusion;
+                                               this.stage = 3;
+                                               delete this.student["password"]; //unable to send new answers now
+                                               //socket.disconnect();
+                                               //socket = null;
+                                       },
+                               });
+                       }
+                       else
+                               this.stage = 4;
+               },
+               // stage 3 --> 4 (on socket message "feedback")
+               setAnswers: function(answers) {
+                       for (let i=0; i<answers.length; i++)
+                               assessment.questions[i].answer = answers[i];
+                       this.stage = 4;
+               },
+       },
+});

diff --git a/public/javascripts/course.js b/public/javascripts/course.js
new file mode 100644 (file)
index 0000000..94e1b84
--- /dev/null
+++ b/public/javascripts/course.js
@@ -0,0 +1,360 @@
+// TODO: YAML format for questions, parsed from text (nested questions)
+// Then yaml parsed to json --> array of indexed questions
+// Use open mode for question banks: add setting "nbQuestions" to show nbQuestions
+// at random among active questions
+
+window.onload = function() {
+
+       V = new Vue({
+               el: '#course',
+               data: {
+                       display: "assessments", //or "students", or "grades" (admin mode)
+                       course: course,
+                       mode: "view", //or "edit" (some assessment)
+                       // assessment data:
+                       monitorPwd: "",
+                       newAssessment: { name: "" },
+                       assessmentArray: assessmentArray,
+                       assessmentIndex: 0, //current edited assessment index
+                       assessment: { }, //copy of assessment at editing index in array
+                       assessmentText: "", //questions in an assessment, in text format
+                       // grades data:
+                       settings: {
+                               totalPoints: 20,
+                               halfPoints: false,
+                               zeroSum: false,
+                       },
+                       group: 1, //for detailed grades tables
+                       grades: { }, //computed
+               },
+               mounted: function() {
+                       $('.modal').each( (i,elem) => {
+                               if (elem.id != "assessmentEdit")
+                                       $(elem).modal();
+                       });
+                       $('ul.tabs').tabs();
+                       $('#assessmentEdit').modal({
+                               complete: () => {
+                                       this.parseAssessment();
+                                       Vue.nextTick( () => {
+                                               $("#questionList").find("code[class^=language-]").each( (i,elem) => {
+                                                       Prism.highlightElement(elem);
+                                               });
+                                               MathJax.Hub.Queue(["Typeset",MathJax.Hub,"questionList"]);
+                                       });
+                               },
+                       });
+               },
+               methods: {
+                       // GENERAL:
+                       toggleDisplay: function(area) {
+                               if (this.display == area)
+                                       this.display = "";
+                               else
+                                       this.display = area;
+                       },
+                       studentList: function(group) {
+                               return this.course.students
+                                       .filter( s => { return group==0 || s.group == group; })
+                                       .map( s => { return Object.assign({}, s); }) //not altering initial array
+                                       .sort( (a,b) => {
+                                               let res = a.name.localeCompare(b.name);
+                                               if (res == 0)
+                                                       res += a.forename.localeCompare(b.forename);
+                                               return res;
+                                       });
+                       },
+                       // STUDENTS:
+                       uploadTrigger: function() {
+                               $("#upload").click();
+                       },
+                       upload: function(e) {
+                               let file = (e.target.files || e.dataTransfer.files)[0];
+                               Papa.parse(file, {
+                                       header: true,
+                                       skipEmptyLines: true,
+                                       complete: (results,file) => {
+                                               let students = [ ];
+                                               // Post-process: add group/number if missing
+                                               let number = 1;
+                                               results.data.forEach( d => {
+                                                       if (!d.group)
+                                                               d.group = 1;
+                                                       if (!d.number)
+                                                               d.number = number++;
+                                                       if (typeof d.number !== "string")
+                                                               d.number = d.number.toString();
+                                                       students.push(d);
+                                               });
+                                               $.ajax("/import/students", {
+                                                       method: "POST",
+                                                       data: {
+                                                               cid: this.course._id,
+                                                               students: JSON.stringify(students),
+                                                       },
+                                                       dataType: "json",
+                                                       success: res => {
+                                                               if (!res.errmsg)
+                                                                       this.course.students = students;
+                                                               else
+                                                                       alert(res.errmsg);
+                                                       },
+                                               });
+                                       },
+                               });
+                       },
+                       // ASSESSMENT:
+                       addAssessment: function() {
+                               if (!admin)
+                                       return;
+                               // modal, fill code and description
+                               let error = Validator.checkObject(this.newAssessment, "Assessment");
+                               if (!!error)
+                                       return alert(error);
+                               else
+                                       $('#newAssessment').modal('close');
+                               $.ajax("/add/assessment",
+                                       {
+                                               method: "GET",
+                                               data: {
+                                                       name: this.newAssessment.name,
+                                                       cid: course._id,
+                                               },
+                                               dataType: "json",
+                                               success: res => {
+                                                       if (!res.errmsg)
+                                                       {
+                                                               this.newAssessment["name"] = "";
+                                                               this.assessmentArray.push(res);
+                                                       }
+                                                       else
+                                                               alert(res.errmsg);
+                                               },
+                                       }
+                               );
+                       },
+                       materialOpenModal: function(id) {
+                               $("#" + id).modal("open");
+                               Materialize.updateTextFields(); //textareas, time field...
+                       },
+                       updateAssessment: function() {
+                               $.ajax("/update/assessment", {
+                                       method: "POST",
+                                       data: {assessment: JSON.stringify(this.assessment)},
+                                       dataType: "json",
+                                       success: res => {
+                                               if (!res.errmsg)
+                                               {
+                                                       this.assessmentArray[this.assessmentIndex] = this.assessment;
+                                                       this.mode = "view";
+                                               }
+                                               else
+                                                       alert(res.errmsg);
+                                       },
+                               });
+                       },
+                       deleteAssessment: function(assessment) {
+                               if (!admin)
+                                       return;
+                               if (confirm("Delete assessment '" + assessment.name + "' ?"))
+                               {
+                                       $.ajax("/remove/assessment",
+                                               {
+                                                       method: "GET",
+                                                       data: { qid: this.assessment._id },
+                                                       dataType: "json",
+                                                       success: res => {
+                                                               if (!res.errmsg)
+                                                                       this.assessmentArray.splice( this.assessmentArray.findIndex( item => {
+                                                                               return item._id == assessment._id;
+                                                                       }), 1 );
+                                                               else
+                                                                       alert(res.errmsg);
+                                                       },
+                                               }
+                                       );
+                               }
+                       },
+                       toggleState: function(questionIndex) {
+                               // add or remove from activeSet of current assessment
+                               let activeIndex = this.assessment.activeSet.findIndex( item => { return item == questionIndex; });
+                               if (activeIndex >= 0)
+                                       this.assessment.activeSet.splice(activeIndex, 1);
+                               else
+                                       this.assessment.activeSet.push(questionIndex);
+                       },
+                       setAssessmentText: function() {
+                               let txt = "";
+                               this.assessment.questions.forEach( q => {
+                                       txt += q.wording + "\n";
+                                       q.options.forEach( (o,i) => {
+                                               let symbol = q.answer.includes(i) ? "+" : "-";
+                                               txt += symbol + " " + o + "\n";
+                                       });
+                                       txt += "\n"; //separate questions by new line
+                               });
+                               this.assessmentText = txt;
+                       },
+                       parseAssessment: function() {
+                               let questions = [ ];
+                               let lines = this.assessmentText.split("\n").map( L => { return L.trim(); })
+                               lines.push(""); //easier parsing
+                               let emptyQuestion = () => {
+                                       return {
+                                               wording: "",
+                                               options: [ ],
+                                               answer: [ ],
+                                               active: true, //default
+                                       };
+                               };
+                               let q = emptyQuestion();
+                               lines.forEach( L => {
+                                       if (L.length > 0)
+                                       {
+                                               if (['+','-'].includes(L.charAt(0)))
+                                               {
+                                                       if (L.charAt(0) == '+')
+                                                               q.answer.push(q.options.length);
+                                                       q.options.push(L.slice(1).trim());
+                                               }
+                                               else if (L.charAt(0) == '*')
+                                               {
+                                                       // TODO: read current + next lines into q.answer (HTML, 1-elem array)
+                                               }
+                                               else
+                                                       q.wording += L + " "; //space required at line breaks, generally
+                                       }
+                                       else
+                                       {
+                                               // Flush current question (if any)
+                                               if (q.wording.length > 0)
+                                               {
+                                                       questions.push(q);
+                                                       q = emptyQuestion();
+                                               }
+                                       }
+                               });
+                               this.assessment.questions = questions;
+                       },
+                       actionAssessment: function(index) {
+                               if (admin)
+                               {
+                                       // Edit screen
+                                       this.assessmentIndex = index;
+                                       this.assessment = $.extend(true, {}, this.assessmentArray[index]);
+                                       this.setAssessmentText();
+                                       this.mode = "edit";
+                                       Vue.nextTick( () => {
+                                               $("#questionList").find("code[class^=language-]").each( (i,elem) => {
+                                                       Prism.highlightElement(elem);
+                                               });
+                                               MathJax.Hub.Queue(["Typeset",MathJax.Hub,"questionList"]);
+                                       });
+                               }
+                               else //external user: show assessment
+                                       this.redirect(this.assessmentArray[index].name);
+                       },
+                       redirect: function(assessmentName) {
+                               document.location.href = "/" + initials + "/" + course.code + "/" + assessmentName;
+                       },
+                       setPassword: function() {
+                               let hashPwd = Sha1.Compute(this.monitorPwd);
+                               let error = Validator.checkObject({password:hashPwd}, "Course");
+                               if (error.length > 0)
+                                       return alert(error);
+                               $.ajax("/set/password",
+                                       {
+                                               method: "GET",
+                                               data: {
+                                                       cid: this.course._id,
+                                                       pwd: hashPwd,
+                                               },
+                                               dataType: "json",
+                                               success: res => {
+                                                       if (!res.errmsg)
+                                                               alert("Password saved!");
+                                                       else
+                                                               alert(res.errmsg);
+                                               },
+                                       }
+                               );
+                       },
+                       // NOTE: artifact required for Vue v-model to behave well
+                       checkBoxFixedId: function(i) {
+                               return "questionFixed" + i;
+                       },
+                       checkBoxActiveId: function(i) {
+                               return "questionActive" + i;
+                       },
+                       // GRADES:
+                       gradeSettings: function() {
+                               $("#gradeSettings").modal("open");
+                               Materialize.updateTextFields(); //total points field in grade settings overlap
+                       },
+                       download: function() {
+                               // Download (all) grades as a CSV file
+                               let data = [ ];
+                               this.studentList(0).forEach( s => {
+                                       let finalGrade = 0.;
+                                       let gradesCount = 0;
+                                       if (!!this.grades[s.number])
+                                       {
+                                               Object.keys(this.grades[s.number]).forEach( assessmentName => {
+                                                       s[assessmentName] = this.grades[s.number][assessmentName];
+                                                       if (_.isNumeric(s[assessmentName]) && !isNaN(s[assessmentName]))
+                                                       {
+                                                               finalGrade += s[assessmentName];
+                                                               gradesCount++;
+                                                       }
+                                                       if (gradesCount >= 1)
+                                                               finalGrade /= gradesCount;
+                                                       s["final"] = finalGrade; //TODO: forbid "final" as assessment name
+                                               });
+                                       }
+                                       data.push(s); //number,forename,name,group,assessName1...assessNameN,final
+                               });
+                               let csv = Papa.unparse(data, {
+                                       quotes: true,
+                                       header: true,
+                               });
+                               let downloadAnchor = $("#download");
+                               downloadAnchor.attr("download", this.course.code + "_results.csv");
+                               downloadAnchor.attr("href", "data:text/plain;charset=utf-8," + encodeURIComponent(csv));
+                               this.$refs.download.click()
+                               //downloadAnchor.click(); //fails
+                       },
+                       showDetails: function(group) {
+                               this.group = group;
+                               $("#detailedGrades").modal("open");
+                       },
+                       groupList: function() {
+                               let maxGrp = 1;
+                               this.course.students.forEach( s => {
+                                       if (s.group > maxGrp)
+                                               maxGrp = s.group;
+                               });
+                               return _.range(1,maxGrp+1);
+                       },
+                       grade: function(assessmentIndex, studentNumber) {
+                               if (!this.grades[assessmentIndex] || !this.grades[assessmentIndex][studentNumber])
+                                       return ""; //no grade yet
+                               return this.grades[assessmentIndex][studentNumber];
+                       },
+                       groupId: function(group, hash) {
+                               return (!!hash?"#":"") + "group" + group;
+                       },
+                       togglePresence: function(number, index) {
+                               // UNIMPLEMENTED
+                               // TODO: if no grade (thus automatic 0), toggle "exempt" state on student for current exam
+                               // --> automatic update of grades view (just a few number to change)
+                       },
+                       computeGrades: function() {
+                               // UNIMPLEMENTED
+                               // TODO: compute all grades using settings (points, coefficients, bonus/malus...).
+                               // If some questions with free answers (open), display answers and ask teacher action.
+                               // TODO: need a setting for that too (by student, by exercice, by question)
+                       },
+               },
+       });
+
+};

diff --git a/public/javascripts/courseList.js b/public/javascripts/courseList.js
new file mode 100644 (file)
index 0000000..ae1f1d8
--- /dev/null
+++ b/public/javascripts/courseList.js
@@ -0,0 +1,69 @@
+window.onload = function() {
+
+       new Vue({
+               el: '#courseList',
+               data: {
+                       courseArray: courseArray,
+                       newCourse: {
+                               code: "",
+                               description: "",
+                       },
+               },
+               mounted: function() {
+                       $('.modal').modal();
+               },
+               methods: {
+                       redirect: function(code) {
+                               document.location.href = "/" + initials + "/" + code;
+                       },
+                       addCourse: function() {
+                               if (!admin)
+                                       return;
+                               // modal, fill code and description
+                               let error = Validator.checkCode(this.newCourse.code);
+                               if (!!error)
+                                       return alert(error);
+                               else
+                                       $('#newCourse').modal('close');
+                               $.ajax("/add/course",
+                                       {
+                                               method: "GET",
+                                               data: this.newCourse,
+                                               dataType: "json",
+                                               success: res => {
+                                                       if (!res.errmsg)
+                                                       {
+                                                               this.newCourse["code"] = "";
+                                                               this.newCourse["description"] = "";
+                                                               this.courseArray.push(res);
+                                                       }
+                                                       else
+                                                               alert(res.errmsg);
+                                               },
+                                       }
+                               );
+                       },
+                       deleteCourse: function(course) {
+                               if (!admin)
+                                       return;
+                               if (confirm("Delete course '" + course.code + "' ?"))
+                                       $.ajax("/remove/course",
+                                               {
+                                                       method: "GET",
+                                                       data: { cid: course._id },
+                                                       dataType: "json",
+                                                       success: res => {
+                                                               if (!res.errmsg)
+                                                                       this.courseArray.splice( this.courseArray.findIndex( item => {
+                                                                               return item._id == course._id;
+                                                                       }), 1 );
+                                                               else
+                                                                       alert(res.errmsg);
+                                                       },
+                                               }
+                                       );
+                               },
+                       }
+       });
+
+};

diff --git a/public/javascripts/login.js b/public/javascripts/login.js
new file mode 100644 (file)
index 0000000..1bb5b72
--- /dev/null
+++ b/public/javascripts/login.js
@@ -0,0 +1,89 @@
+window.onload = function() {
+
+       const messages = {
+               "login": "Go",
+               "register": "Send",
+       };
+
+       const ajaxUrl = {
+               "login": "/sendtoken",
+               "register": "/register",
+       };
+
+       const infos = {
+               "login": "Connection token sent. Check your emails!",
+               "register": "Registration complete! Please check your emails.",
+       };
+
+       const animationDuration = 300; //in milliseconds
+
+       // Basic anti-bot measure: force at least N seconds between arrival on page, and register form validation:
+       const enterTime = Date.now();
+
+       new Vue({
+               el: '#login',
+               data: {
+                       messages: messages,
+                       user: {
+                               forename: "",
+                               name: "",
+                               email: "",
+                       },
+                       stage: "login", //or "register"
+               },
+               mounted: function() {
+                       // https://laracasts.com/discuss/channels/vue/vuejs-set-focus-on-textfield
+                       this.$refs.userEmail.focus();
+               },
+               methods: {
+                       toggleStage: function(stage) {
+                               let $form = $("#form");
+                               $form.fadeOut(animationDuration);
+                               setTimeout( () => {
+                                       this.stage = stage;
+                                       $form.show(0);
+                               }, animationDuration);
+                       },
+                       submit: function() {
+                               if (this.stage=="register")
+                               {
+                                       if (Date.now() - enterTime < 5000)
+                                               return;
+                               }
+                               let error = Validator.checkObject({email: this.user.email}, "User");
+                               if (!error && this.stage == "register")
+                                       error = Validator.checkObject({forename: this.user.forename, name: this.user.name}, "User");
+                               let $dialog = $("#dialog");
+                               show($dialog);
+                               setTimeout(() => {hide($dialog);}, 3000);
+                               if (error.length > 0)
+                                       return showMsg($dialog, "error", error);
+                               showMsg($dialog, "process", "Processing... Please wait");
+                               $.ajax(ajaxUrl[this.stage],
+                                       {
+                                               method: "GET",
+                                               data:
+                                               {
+                                                       email: encodeURIComponent(this.user.email),
+                                                       forename: encodeURIComponent(this.user.forename), //may be unused
+                                                       name: encodeURIComponent(this.user.name), //may be unused
+                                               },
+                                               dataType: "json",
+                                               success: res => {
+                                                       if (!res.errmsg)
+                                                       {
+                                                               this.user["forename"] = "";
+                                                               this.user["name"] = "";
+                                                               this.user["email"] = "";
+                                                               showMsg($dialog, "info", infos[this.stage]);
+                                                       }
+                                                       else
+                                                               showMsg($dialog, "error", res.errmsg);
+                                               },
+                                       }
+                               );
+                       },
+               }
+       });
+
+};

diff --git a/public/javascripts/monitor.js b/public/javascripts/monitor.js
new file mode 100644 (file)
index 0000000..b58461b
--- /dev/null
+++ b/public/javascripts/monitor.js
@@ -0,0 +1,11 @@
+// UNIMPLEMENTED
+
+// TODO: onglets pour chaque groupe + section déroulante questionnaire (chargé avec réponses)
+//   NOM Prenom (par grp, puis alphabétique)
+//   réponse : vert si OK (+ choix), rouge si faux, gris si texte (clic pour voir)
+//   + temps total ?
+//   click sur en-tête de colonne : tri alphabétique, tri décroissant...
+// Affiché si (hash du) mdp du cours est correctement entré
+// Doit reprendre les données en base si refresh (sinon : sockets)
+
+// Also buttons "start exam", "end exam" for logged in teacher

diff --git a/public/javascripts/utils/dialog.js b/public/javascripts/utils/dialog.js
new file mode 100644 (file)
index 0000000..979e757
--- /dev/null
+++ b/public/javascripts/utils/dialog.js
@@ -0,0 +1,30 @@
+function state2col(state)
+{
+       switch (state)
+       {
+               case "process":
+                       return "black";
+               case "error":
+                       return "red";
+               case "info":
+                       return "blue";
+               default: //idle
+                       return "white"; //irrelevant, dialog is hidden
+       }
+}
+
+function show($dialog)
+{
+       $dialog.removeClass("hide");
+}
+
+function hide($dialog)
+{
+       $dialog.addClass("hide");
+}
+
+function showMsg($dialog, state, msg)
+{
+       $dialog.html(msg);
+       $dialog.css("color", state2col(state));
+}

diff --git a/public/javascripts/utils/sha1.js b/public/javascripts/utils/sha1.js
new file mode 100644 (file)
index 0000000..d12006d
--- /dev/null
+++ b/public/javascripts/utils/sha1.js
@@ -0,0 +1,124 @@
+var Sha1 = {};  // SHA-1 namespace
+
+// SHA-1 algorithm as described at http://en.wikipedia.org/wiki/SHA-1
+// The implementation follows http://fr.wikipedia.org/wiki/Sp%C3%A9cifications_SHA-1 (in french).
+// SHA-1 implementation of Chris Veness 2002-2010 [www.movable-type.co.uk] helped a lot for debugging,
+// and for hacks like toHexStr(). See his script at http://www.movable-type.co.uk/scripts/sha1.html
+Sha1.Compute = function(subject)
+{
+       var i, j, tmp, redIndex, a, b, c, d, e;
+
+       // 1) pretreatment
+
+       // note: no check on message length, since the 2^64 boundary is
+       // a lot longer than what would be allowed by HTML/PHP
+
+       // add trailing '1' bit (+ 0's padding) to string
+       subject += String.fromCharCode(0x80);
+
+       // add 8 for two last reserved words to store message length
+       // 8 = 2 x 4, one 32-bits word is 4 characters (bytes) length.
+       var L = subject.length + 8;
+
+       // initialize 512-bits blocks representing the message, each containing 16 32-bits words.
+       // NOTE: one char is 8 bits, so one block in the initial string is 64 chars.
+       var countBlocks = Math.ceil(L / 64);
+       var blocks = new Array(countBlocks);
+       for (i=0; i<countBlocks; i++)
+       {
+               var words = new Array(16);
+               for (j=0; j<16; j++)
+               {
+                       tmp = subject.substr(64 * i + 4 * j, 4);
+                       // note: running off the end of msg is ok because bitwise ops on NaN return 0
+                       words[j] = (1 << 24) * tmp.charCodeAt(0) | (1 << 16) * tmp.charCodeAt(1) | (1 << 8) * tmp.charCodeAt(2) | tmp.charCodeAt(3);
+               }
+               blocks[i] = words;
+       }
+
+       // note: 'subject' in our context will never be of length >= 2^32.
+       // therefore we don't need to fill before-last block.
+       blocks[countBlocks-1][15] = (subject.length-1) * 8;
+
+       // initialize parts of the final hash
+       var h0 = 0x67452301;
+       var h1 = 0xefcdab89;
+       var h2 = 0x98badcfe;
+       var h3 = 0x10325476;
+       var h4 = 0xc3d2e1f0;
+
+       // initialize constants array
+       var k = [0x5a827999,0x6ed9eba1,0x8f1bbcdc,0xca62c1d6];
+
+       // 2) computations
+
+       for (i=0; i<blocks.length; i++)
+       {
+               // initialize w array
+               var w = new Array(80);
+               for (j=0; j<16; j++) w[j] = blocks[i][j];
+               for (j=16; j<80; j++)
+                       w[j] = Sha1.LeftRotate(w[j-3] ^ w[j-8] ^ w[j-14] ^ w[j-16], 1);
+
+               // initialize a,b,c,d,e variables
+               a = h0;
+               b = h1;
+               c = h2;
+               d = h3;
+               e = h4;
+
+               // iterations over a,b,c,d,e
+               for (j=0; j<80; j++)
+               {
+                       // note: '& 0xffffffff' == 'modulo 2^32'.
+                       redIndex = Math.floor(j/20);
+                       tmp = (Sha1.LeftRotate(a, 5) + Sha1.BitOp(b, c, d, redIndex) + e + k[redIndex] + w[j]) & 0xffffffff;
+                       e = d;
+                       d = c;
+                       c = Sha1.LeftRotate(b, 30);
+                       b = a;
+                       a = tmp;
+               }
+
+               // update intermediate hash values
+               h0 = (h0+a) & 0xffffffff;
+               h1 = (h1+b) & 0xffffffff;
+               h2 = (h2+c) & 0xffffffff;
+               h3 = (h3+d) & 0xffffffff;
+               h4 = (h4+e) & 0xffffffff;
+       }
+
+       return Sha1.ToHexStr(h0)+Sha1.ToHexStr(h1)+Sha1.ToHexStr(h2)+Sha1.ToHexStr(h3)+Sha1.ToHexStr(h4);
+}
+
+// auxiliary functions.
+Sha1.BitOp = function(x, y, z, t)
+{
+       if (t == 0) return (x & y) ^ (~x & z);
+       if (t == 1) return x ^ y ^ z;
+       if (t == 2) return (x & y) ^ (x & z) ^ (y & z);
+       if (t == 3) return x ^ y ^ z;
+}
+
+// left rotation (within 32 bits).
+Sha1.LeftRotate = function(x, n)
+{
+       return (x << n) | (x >>> (32 - n));
+}
+
+// [copy-pasted from Chris Veness implementation]
+// Hexadecimal representation of a number
+// (note toString(16) is implementation-dependant, and
+// in IE returns signed numbers when used on full words)
+Sha1.ToHexStr = function(x)
+{
+       var s="";
+       for (var i=7; i>=0; i--)
+       {
+               var v = (x >>> (i*4)) & 0xf;
+               s += v.toString(16);
+       }
+       return s;
+}
+
+try { module.exports = Sha1; } catch (err) {}

diff --git a/public/javascripts/utils/socketMessages.js b/public/javascripts/utils/socketMessages.js
new file mode 100644 (file)
index 0000000..4ffd05b
--- /dev/null
+++ b/public/javascripts/utils/socketMessages.js
@@ -0,0 +1,10 @@
+// Socket message list, easier life in case of a message renaming
+
+let message = {
+       // send answer (student --> server --> monitor)
+       newAnswer: "new answer",
+       // receive all answers to an exam (server --> student)
+       allAnswers: "all answers",
+};
+
+try { module.exports = message; } catch (err) {} //for server

diff --git a/public/javascripts/utils/validation.js b/public/javascripts/utils/validation.js
new file mode 100644 (file)
index 0000000..560bd5c
--- /dev/null
+++ b/public/javascripts/utils/validation.js
@@ -0,0 +1,241 @@
+try { var _ = require("underscore"); } catch (err) {} //for server
+
+let Validator = { };
+
+// Cell in assessment.questions array
+Validator.Question = {
+       "index": "section", //"2.2.1", "3.2", "1" ...etc
+       "wording": "string",
+       "options": "stringArray", //only for quiz
+       "fixed": "boolean",
+       "answer": "string", //both this and next are mutually exclusive
+       "choice": "integerArray",
+       "active": "boolean",
+       "points": "number",
+};
+
+Validator.Input = {
+       "index": "section",
+       "input": "stringOrIntegerArray",
+};
+
+// One student response to an exam
+Validator.Paper = {
+       "number": "code",
+       // (array of) strings for open questions, arrays of integers for quizzes:
+       "inputs": Validator.Input,
+       "startTime": "positiveInteger",
+       "endTime": "positiveInteger",
+       "password": "password",
+};
+
+Validator.Assessment = {
+       "_id": "bson",
+       "cid": "bson",
+       "name": "code",
+       "mode": "alphanumeric", //"open" or "exam", but alphanumeric is good enough
+       "active": "boolean",
+       "fixed": "boolean",
+       "display": "alphanumeric", //"one" or "all"
+       "time": "integer",
+       "introduction": "string",
+       "conclusion": "string",
+       "coefficient": "number",
+       "questions": Validator.Question,
+       "papers": Validator.Paper,
+};
+
+Validator.User = {
+       "_id": "bson",
+       "email": "email",
+       "forename": "name",
+       "name": "name",
+       "initials": "unchecked", //not a user input
+       "loginToken": "unchecked",
+       "sessionTokens": "unchecked",
+       "token": "alphanumeric", //exception: for the purpose of user registration
+};
+
+Validator.Student = {
+       "number": "code",
+       "forename": "name",
+       "name": "name",
+       "group": "positiveInteger",
+};
+
+Validator.Course = {
+       "_id": "bson",
+       "uid": "bson",
+       "code": "code",
+       "description": "string",
+       "password": "hash",
+       "students": Validator.Student,
+};
+
+Object.assign(Validator,
+{
+       // Recurse into sub-documents
+       checkObject_aux: function(obj, model)
+       {
+               for (let key of Object.keys(obj))
+               {
+                       if (!model[key])
+                               return "Unknown field";
+                       if (model[key] == "unchecked") //not a user input (ignored)
+                               continue;
+                       if (_.isObject(model[key]))
+                       {
+                               // TODO: next loop seems too heavy... (only a concern if big class import?)
+                               for (let item of obj[key])
+                               {
+                                       let error = Validator.checkObject_aux(item, model[key]);
+                                       if (error.length > 0)
+                                               return error;
+                               }
+                       }
+                       else
+                       {
+                               let error = Validator[ "check_" + model[key] ](obj[key]);
+                               if (error.length > 0)
+                                       return key + ": " + error;
+                       }
+               }
+               return "";
+       },
+
+       // Always check top-level object
+       checkObject: function(obj, name)
+       {
+               return Validator.checkObject_aux(obj, Validator[name]);
+       },
+
+       "check_string": function(arg)
+       {
+               return ""; //strings are unchecked, but sanitized
+       },
+
+       "check_section": function(arg)
+       {
+               if (!_.isString(arg))
+                       return "not a string";
+               if (!/^[0-9.]+$/.test(arg))
+                       return "digits and dot only";
+               return "";
+       },
+
+       "check_stringArray": function(arg)
+       {
+               return !_.isArray(arg) ? "not an array" : "";
+       },
+
+       "check_alphanumeric": function(arg)
+       {
+               return arg.match(/^[\w]{1,32}$/) === null ? "[1,32] alphanumerics" : "";
+       },
+
+       "check_bson": function(arg)
+       {
+               return arg.match(/^[a-z0-9]{24}$/) === null ? "not a BSON id" : "";
+       },
+
+       "check_name": function(arg)
+       {
+               if (!_.isString(arg))
+                       return "not a string";
+               if (!/^[a-zA-Z\u00C0-\u024F -]{1,32}$/.test(arg))
+                       return "[1,32] letters + hyphen/space";
+               return "";
+       },
+
+       "check_email": function(arg)
+       {
+               if (!_.isString(arg))
+                       return "not a string";
+               if (arg.length > 64)
+                       return "string too long: max. 64 characters";
+               // Regexp used in "type='email'" inputs ( http://emailregex.com/ )
+               if (!/^[a-zA-Z0-9.!#$%&’*+/=?^_`{|}~-]+@[a-zA-Z0-9-]+(?:\.[a-zA-Z0-9-]+)*$/.test(arg))
+                       return "X@Y, alphanumerics and . _ - +(X)";
+               return "";
+       },
+
+       "check_code": function(arg)
+       {
+               if (!_.isString(arg))
+                       return "not a string";
+               if (!/^[\w.-]{1,16}$/.test(arg))
+                       return "[1,16] alphanumerics and . _ -";
+               return "";
+       },
+
+       "check_number": function(arg)
+       {
+               if (!_.isNumber(arg))
+                       arg = parseFloat(arg);
+               if (isNaN(arg))
+                       return "not a number";
+               return "";
+       },
+
+       "check_integer": function(arg)
+       {
+               if (!_.isNumber(arg))
+                       arg = parseInt(arg);
+               if (isNaN(arg) || arg % 1 != 0)
+                       return "not an integer";
+               return "";
+       },
+
+       "check_positiveInteger": function(arg)
+       {
+               return Validator["check_integer"](arg) || (arg<0 ? "not positive" : "");
+       },
+
+       "check_boolean": function(arg)
+       {
+               if (!_.isBoolean(arg))
+                       return "not a boolean";
+               return "";
+       },
+
+       "check_password": function(arg)
+       {
+               if (!_.isString(arg))
+                       return "not a string";
+               if (!/^[\x21-\x7E]{1,16}$/.test(arg))
+                       return "[1,16] ASCII characters with code in [33,126]";
+               return "";
+       },
+
+       // Sha-1 hash: length 40, hexadecimal
+       "check_hash": function(arg)
+       {
+               if (!_.isString(arg))
+                       return "not a string";
+               if (!/^[a-f0-9]{40}$/.test(arg))
+                       return "not a sha-1 hash";
+               return "";
+       },
+
+       "check_integerArray": function(arg)
+       {
+               if (!_.isArray(arg))
+                       return "not an array";
+               for (let i=0; i<arg.length; i++)
+               {
+                       let error = Validator["check_integer"](arg[i]);
+                       if (error.length > 0)
+                               return error;
+               }
+               return "";
+       },
+
+       "check_stringOrIntegerArray": function(arg)
+       {
+               if (!_.isString(arg))
+                       return Validator["check_integerArray"](arg);
+               return "";
+       },
+});
+
+try { module.exports = Validator.checkObject; } catch (err) {} //for server

diff --git a/public/stylesheets/assessment.css b/public/stylesheets/assessment.css
new file mode 100644 (file)
index 0000000..3187907
--- /dev/null
+++ b/public/stylesheets/assessment.css
@@ -0,0 +1,55 @@
+a#rightButton {
+       position: absolute;
+       top: 0;
+       right: 0;
+}
+
+.question {
+       margin: 20px 5px;
+       padding: 15px 0;
+}
+
+.question button {
+       display: block;
+       margin: 0 auto 15px auto;
+}
+
+.question label {
+       color: black;
+}
+
+.question .choiceCorrect {
+       background-color: lightgreen;
+}
+
+.question .choiceWrong {
+       background-color: peachpuff;
+}
+
+.question .wording {
+       margin-bottom: 10px;
+}
+
+.question .option {
+       margin-left: 15px;
+}
+
+.question p {
+       margin-top: 10px;
+}
+
+.questionInactive {
+       background-color: lightgrey;
+}
+
+.introduction {
+       padding: 20px 5px;
+}
+
+.conclusion {
+       padding: 20px 5px;
+}
+
+.timer {
+       font-size: 2rem;
+}

diff --git a/public/stylesheets/course.css b/public/stylesheets/course.css
new file mode 100644 (file)
index 0000000..2d61347
--- /dev/null
+++ b/public/stylesheets/course.css
@@ -0,0 +1,56 @@
+h4.title {
+       cursor: pointer;
+       background-color: lightgrey;
+}
+
+tr.assessment {
+       cursor: pointer;
+}
+
+input#password {
+       width: auto;
+}
+
+table.result {
+       cursor: pointer;
+}
+
+tr.stats {
+       padding-top: 10px;
+}
+
+#questionList {
+       margin: 20px 5px;
+}
+
+.question {
+       margin: 20px 0;
+}
+
+.question .choiceCorrect {
+       background-color: lightgreen;
+}
+
+.question .wording {
+       margin-bottom: 10px;
+}
+
+.question .option {
+       margin-left: 15px;
+}
+
+.question p {
+       margin-top: 10px;
+}
+
+.questionInactive {
+       background-color: lightgrey;
+}
+
+.introduction {
+       margin-top: 20px;
+}
+
+.conclusion {
+       margin-bottom: 20px;
+}

diff --git a/public/stylesheets/courseList.css b/public/stylesheets/courseList.css
new file mode 100644 (file)
index 0000000..1846eb8
--- /dev/null
+++ b/public/stylesheets/courseList.css
@@ -0,0 +1,3 @@
+tr.course {
+       cursor: pointer;
+}

diff --git a/public/stylesheets/index.css b/public/stylesheets/index.css
new file mode 100644 (file)
index 0000000..30c9107
--- /dev/null
+++ b/public/stylesheets/index.css
@@ -0,0 +1,3 @@
+tr.teacher {
+       cursor: pointer;
+}

diff --git a/public/stylesheets/layout.css b/public/stylesheets/layout.css
new file mode 100644 (file)
index 0000000..d4dc11d
--- /dev/null
+++ b/public/stylesheets/layout.css
@@ -0,0 +1,3 @@
+.on-left {
+       margin-right: 20px;
+}

diff --git a/public/stylesheets/login.css b/public/stylesheets/login.css
new file mode 100644 (file)
index 0000000..f745f2e
--- /dev/null
+++ b/public/stylesheets/login.css
@@ -0,0 +1,22 @@
+#form {
+       margin-top: 30px;
+       padding: 10px 20px 20px 20px;
+}
+
+#submit {
+       margin: 10px 0 15px 0;
+}
+
+#toggle {
+       color: darkblue;
+       cursor: pointer;
+}
+
+#toggle span:not(:last-child) {
+       margin-right: 30px;
+}
+
+#dialog {
+       margin-top: 20px;
+       padding: 20px;
+}

diff --git a/public/stylesheets/monitor.css b/public/stylesheets/monitor.css
new file mode 100644 (file)
index 0000000..8f414f5
--- /dev/null
+++ b/public/stylesheets/monitor.css
@@ -0,0 +1 @@
+/* TODO */

diff --git a/public/vendor/prism/prism-components.zip b/public/vendor/prism/prism-components.zip
new file mode 100644 (file)
index 0000000..dbc818a
--- /dev/null
+++ b/public/vendor/prism/prism-components.zip
@@ -0,0 +1 @@
+#$# git-fat 0a0ef2276985c0f221752b8c330d9b04275cafc1               589999

diff --git a/public/vendor/prism/prism.css b/public/vendor/prism/prism.css
new file mode 100644 (file)
index 0000000..506acb3
--- /dev/null
+++ b/public/vendor/prism/prism.css
@@ -0,0 +1,140 @@
+/* PrismJS 1.10.0
+http://prismjs.com/download.html?themes=prism&languages=clike+python+sql&plugins=autoloader */
+/**
+ * prism.js default theme for JavaScript, CSS and HTML
+ * Based on dabblet (http://dabblet.com)
+ * @author Lea Verou
+ */
+
+code[class*="language-"],
+pre[class*="language-"] {
+       color: black;
+       background: none;
+       text-shadow: 0 1px white;
+       font-family: Consolas, Monaco, 'Andale Mono', 'Ubuntu Mono', monospace;
+       text-align: left;
+       white-space: pre;
+       word-spacing: normal;
+       word-break: normal;
+       word-wrap: normal;
+       line-height: 1.5;
+
+       -moz-tab-size: 4;
+       -o-tab-size: 4;
+       tab-size: 4;
+
+       -webkit-hyphens: none;
+       -moz-hyphens: none;
+       -ms-hyphens: none;
+       hyphens: none;
+}
+
+pre[class*="language-"]::-moz-selection, pre[class*="language-"] ::-moz-selection,
+code[class*="language-"]::-moz-selection, code[class*="language-"] ::-moz-selection {
+       text-shadow: none;
+       background: #b3d4fc;
+}
+
+pre[class*="language-"]::selection, pre[class*="language-"] ::selection,
+code[class*="language-"]::selection, code[class*="language-"] ::selection {
+       text-shadow: none;
+       background: #b3d4fc;
+}
+
+@media print {
+       code[class*="language-"],
+       pre[class*="language-"] {
+               text-shadow: none;
+       }
+}
+
+/* Code blocks */
+pre[class*="language-"] {
+       padding: 1em;
+       margin: .5em 0;
+       overflow: auto;
+}
+
+:not(pre) > code[class*="language-"],
+pre[class*="language-"] {
+       background: #f5f2f0;
+}
+
+/* Inline code */
+:not(pre) > code[class*="language-"] {
+       padding: .1em;
+       border-radius: .3em;
+       white-space: normal;
+}
+
+.token.comment,
+.token.prolog,
+.token.doctype,
+.token.cdata {
+       color: slategray;
+}
+
+.token.punctuation {
+       color: #999;
+}
+
+.namespace {
+       opacity: .7;
+}
+
+.token.property,
+.token.tag,
+.token.boolean,
+.token.number,
+.token.constant,
+.token.symbol,
+.token.deleted {
+       color: #905;
+}
+
+.token.selector,
+.token.attr-name,
+.token.string,
+.token.char,
+.token.builtin,
+.token.inserted {
+       color: #690;
+}
+
+.token.operator,
+.token.entity,
+.token.url,
+.language-css .token.string,
+.style .token.string {
+       color: #a67f59;
+       background: hsla(0, 0%, 100%, .5);
+}
+
+.token.atrule,
+.token.attr-value,
+.token.keyword {
+       color: #07a;
+}
+
+.token.function {
+       color: #DD4A68;
+}
+
+.token.regex,
+.token.important,
+.token.variable {
+       color: #e90;
+}
+
+.token.important,
+.token.bold {
+       font-weight: bold;
+}
+.token.italic {
+       font-style: italic;
+}
+
+.token.entity {
+       cursor: help;
+}
+

diff --git a/public/vendor/prism/prism.js b/public/vendor/prism/prism.js
new file mode 100644 (file)
index 0000000..4b29e81
--- /dev/null
+++ b/public/vendor/prism/prism.js
@@ -0,0 +1,7 @@
+/* PrismJS 1.10.0
+http://prismjs.com/download.html?themes=prism&languages=clike+python+sql&plugins=autoloader */
+var _self="undefined"!=typeof window?window:"undefined"!=typeof WorkerGlobalScope&&self instanceof WorkerGlobalScope?self:{},Prism=function(){var e=/\blang(?:uage)?-(\w+)\b/i,t=0,n=_self.Prism={manual:_self.Prism&&_self.Prism.manual,disableWorkerMessageHandler:_self.Prism&&_self.Prism.disableWorkerMessageHandler,util:{encode:function(e){return e instanceof r?new r(e.type,n.util.encode(e.content),e.alias):"Array"===n.util.type(e)?e.map(n.util.encode):e.replace(/&/g,"&amp;").replace(/</g,"&lt;").replace(/\u00a0/g," ")},type:function(e){return Object.prototype.toString.call(e).match(/\[object (\w+)\]/)[1]},objId:function(e){return e.__id||Object.defineProperty(e,"__id",{value:++t}),e.__id},clone:function(e){var t=n.util.type(e);switch(t){case"Object":var r={};for(var a in e)e.hasOwnProperty(a)&&(r[a]=n.util.clone(e[a]));return r;case"Array":return e.map(function(e){return n.util.clone(e)})}return e}},languages:{extend:function(e,t){var r=n.util.clone(n.languages[e]);for(var a in t)r[a]=t[a];return r},insertBefore:function(e,t,r,a){a=a||n.languages;var l=a[e];if(2==arguments.length){r=arguments[1];for(var i in r)r.hasOwnProperty(i)&&(l[i]=r[i]);return l}var o={};for(var s in l)if(l.hasOwnProperty(s)){if(s==t)for(var i in r)r.hasOwnProperty(i)&&(o[i]=r[i]);o[s]=l[s]}return n.languages.DFS(n.languages,function(t,n){n===a[e]&&t!=e&&(this[t]=o)}),a[e]=o},DFS:function(e,t,r,a){a=a||{};for(var l in e)e.hasOwnProperty(l)&&(t.call(e,l,e[l],r||l),"Object"!==n.util.type(e[l])||a[n.util.objId(e[l])]?"Array"!==n.util.type(e[l])||a[n.util.objId(e[l])]||(a[n.util.objId(e[l])]=!0,n.languages.DFS(e[l],t,l,a)):(a[n.util.objId(e[l])]=!0,n.languages.DFS(e[l],t,null,a)))}},plugins:{},highlightAll:function(e,t){n.highlightAllUnder(document,e,t)},highlightAllUnder:function(e,t,r){var a={callback:r,selector:'code[class*="language-"], [class*="language-"] code, code[class*="lang-"], [class*="lang-"] code'};n.hooks.run("before-highlightall",a);for(var l,i=a.elements||e.querySelectorAll(a.selector),o=0;l=i[o++];)n.highlightElement(l,t===!0,a.callback)},highlightElement:function(t,r,a){for(var l,i,o=t;o&&!e.test(o.className);)o=o.parentNode;o&&(l=(o.className.match(e)||[,""])[1].toLowerCase(),i=n.languages[l]),t.className=t.className.replace(e,"").replace(/\s+/g," ")+" language-"+l,t.parentNode&&(o=t.parentNode,/pre/i.test(o.nodeName)&&(o.className=o.className.replace(e,"").replace(/\s+/g," ")+" language-"+l));var s=t.textContent,g={element:t,language:l,grammar:i,code:s};if(n.hooks.run("before-sanity-check",g),!g.code||!g.grammar)return g.code&&(n.hooks.run("before-highlight",g),g.element.textContent=g.code,n.hooks.run("after-highlight",g)),n.hooks.run("complete",g),void 0;if(n.hooks.run("before-highlight",g),r&&_self.Worker){var u=new Worker(n.filename);u.onmessage=function(e){g.highlightedCode=e.data,n.hooks.run("before-insert",g),g.element.innerHTML=g.highlightedCode,a&&a.call(g.element),n.hooks.run("after-highlight",g),n.hooks.run("complete",g)},u.postMessage(JSON.stringify({language:g.language,code:g.code,immediateClose:!0}))}else g.highlightedCode=n.highlight(g.code,g.grammar,g.language),n.hooks.run("before-insert",g),g.element.innerHTML=g.highlightedCode,a&&a.call(t),n.hooks.run("after-highlight",g),n.hooks.run("complete",g)},highlight:function(e,t,a){var l=n.tokenize(e,t);return r.stringify(n.util.encode(l),a)},matchGrammar:function(e,t,r,a,l,i,o){var s=n.Token;for(var g in r)if(r.hasOwnProperty(g)&&r[g]){if(g==o)return;var u=r[g];u="Array"===n.util.type(u)?u:[u];for(var c=0;c<u.length;++c){var h=u[c],f=h.inside,d=!!h.lookbehind,m=!!h.greedy,p=0,y=h.alias;if(m&&!h.pattern.global){var v=h.pattern.toString().match(/[imuy]*$/)[0];h.pattern=RegExp(h.pattern.source,v+"g")}h=h.pattern||h;for(var b=a,k=l;b<t.length;k+=t[b].length,++b){var w=t[b];if(t.length>e.length)return;if(!(w instanceof s)){h.lastIndex=0;var _=h.exec(w),P=1;if(!_&&m&&b!=t.length-1){if(h.lastIndex=k,_=h.exec(e),!_)break;for(var A=_.index+(d?_[1].length:0),j=_.index+_[0].length,x=b,O=k,N=t.length;N>x&&(j>O||!t[x].type&&!t[x-1].greedy);++x)O+=t[x].length,A>=O&&(++b,k=O);if(t[b]instanceof s||t[x-1].greedy)continue;P=x-b,w=e.slice(k,O),_.index-=k}if(_){d&&(p=_[1].length);var A=_.index+p,_=_[0].slice(p),j=A+_.length,S=w.slice(0,A),C=w.slice(j),M=[b,P];S&&(++b,k+=S.length,M.push(S));var E=new s(g,f?n.tokenize(_,f):_,y,_,m);if(M.push(E),C&&M.push(C),Array.prototype.splice.apply(t,M),1!=P&&n.matchGrammar(e,t,r,b,k,!0,g),i)break}else if(i)break}}}}},tokenize:function(e,t){var r=[e],a=t.rest;if(a){for(var l in a)t[l]=a[l];delete t.rest}return n.matchGrammar(e,r,t,0,0,!1),r},hooks:{all:{},add:function(e,t){var r=n.hooks.all;r[e]=r[e]||[],r[e].push(t)},run:function(e,t){var r=n.hooks.all[e];if(r&&r.length)for(var a,l=0;a=r[l++];)a(t)}}},r=n.Token=function(e,t,n,r,a){this.type=e,this.content=t,this.alias=n,this.length=0|(r||"").length,this.greedy=!!a};if(r.stringify=function(e,t,a){if("string"==typeof e)return e;if("Array"===n.util.type(e))return e.map(function(n){return r.stringify(n,t,e)}).join("");var l={type:e.type,content:r.stringify(e.content,t,a),tag:"span",classes:["token",e.type],attributes:{},language:t,parent:a};if(e.alias){var i="Array"===n.util.type(e.alias)?e.alias:[e.alias];Array.prototype.push.apply(l.classes,i)}n.hooks.run("wrap",l);var o=Object.keys(l.attributes).map(function(e){return e+'="'+(l.attributes[e]||"").replace(/"/g,"&quot;")+'"'}).join(" ");return"<"+l.tag+' class="'+l.classes.join(" ")+'"'+(o?" "+o:"")+">"+l.content+"</"+l.tag+">"},!_self.document)return _self.addEventListener?(n.disableWorkerMessageHandler||_self.addEventListener("message",function(e){var t=JSON.parse(e.data),r=t.language,a=t.code,l=t.immediateClose;_self.postMessage(n.highlight(a,n.languages[r],r)),l&&_self.close()},!1),_self.Prism):_self.Prism;var a=document.currentScript||[].slice.call(document.getElementsByTagName("script")).pop();return a&&(n.filename=a.src,n.manual||a.hasAttribute("data-manual")||("loading"!==document.readyState?window.requestAnimationFrame?window.requestAnimationFrame(n.highlightAll):window.setTimeout(n.highlightAll,16):document.addEventListener("DOMContentLoaded",n.highlightAll))),_self.Prism}();"undefined"!=typeof module&&module.exports&&(module.exports=Prism),"undefined"!=typeof global&&(global.Prism=Prism);
+Prism.languages.clike={comment:[{pattern:/(^|[^\\])\/\*[\s\S]*?(?:\*\/|$)/,lookbehind:!0},{pattern:/(^|[^\\:])\/\/.*/,lookbehind:!0}],string:{pattern:/(["'])(?:\\(?:\r\n|[\s\S])|(?!\1)[^\\\r\n])*\1/,greedy:!0},"class-name":{pattern:/((?:\b(?:class|interface|extends|implements|trait|instanceof|new)\s+)|(?:catch\s+\())[\w.\\]+/i,lookbehind:!0,inside:{punctuation:/[.\\]/}},keyword:/\b(?:if|else|while|do|for|return|in|instanceof|function|new|try|throw|catch|finally|null|break|continue)\b/,"boolean":/\b(?:true|false)\b/,"function":/[a-z0-9_]+(?=\()/i,number:/\b-?(?:0x[\da-f]+|\d*\.?\d+(?:e[+-]?\d+)?)\b/i,operator:/--?|\+\+?|!=?=?|<=?|>=?|==?=?|&&?|\|\|?|\?|\*|\/|~|\^|%/,punctuation:/[{}[\];(),.:]/};
+Prism.languages.python={comment:{pattern:/(^|[^\\])#.*/,lookbehind:!0},"triple-quoted-string":{pattern:/("""|''')[\s\S]+?\1/,greedy:!0,alias:"string"},string:{pattern:/("|')(?:\\.|(?!\1)[^\\\r\n])*\1/,greedy:!0},"function":{pattern:/((?:^|\s)def[ \t]+)[a-zA-Z_]\w*(?=\s*\()/g,lookbehind:!0},"class-name":{pattern:/(\bclass\s+)\w+/i,lookbehind:!0},keyword:/\b(?:as|assert|async|await|break|class|continue|def|del|elif|else|except|exec|finally|for|from|global|if|import|in|is|lambda|nonlocal|pass|print|raise|return|try|while|with|yield)\b/,builtin:/\b(?:__import__|abs|all|any|apply|ascii|basestring|bin|bool|buffer|bytearray|bytes|callable|chr|classmethod|cmp|coerce|compile|complex|delattr|dict|dir|divmod|enumerate|eval|execfile|file|filter|float|format|frozenset|getattr|globals|hasattr|hash|help|hex|id|input|int|intern|isinstance|issubclass|iter|len|list|locals|long|map|max|memoryview|min|next|object|oct|open|ord|pow|property|range|raw_input|reduce|reload|repr|reversed|round|set|setattr|slice|sorted|staticmethod|str|sum|super|tuple|type|unichr|unicode|vars|xrange|zip)\b/,"boolean":/\b(?:True|False|None)\b/,number:/\b-?(?:0[bo])?(?:(?:\d|0x[\da-f])[\da-f]*\.?\d*|\.\d+)(?:e[+-]?\d+)?j?\b/i,operator:/[-+%=]=?|!=|\*\*?=?|\/\/?=?|<[<=>]?|>[=>]?|[&|^~]|\b(?:or|and|not)\b/,punctuation:/[{}[\];(),.:]/};
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+!function(){if("undefined"!=typeof self&&self.Prism&&self.document&&document.createElement){var e={javascript:"clike",actionscript:"javascript",arduino:"cpp",aspnet:"markup",bison:"c",c:"clike",csharp:"clike",cpp:"c",coffeescript:"javascript",crystal:"ruby","css-extras":"css",d:"clike",dart:"clike",django:"markup",fsharp:"clike",flow:"javascript",glsl:"clike",go:"clike",groovy:"clike",haml:"ruby",handlebars:"markup",haxe:"clike",java:"clike",jolie:"clike",kotlin:"clike",less:"css",markdown:"markup",n4js:"javascript",nginx:"clike",objectivec:"c",opencl:"cpp",parser:"markup",php:"clike","php-extras":"php",processing:"clike",protobuf:"clike",pug:"javascript",qore:"clike",jsx:["markup","javascript"],reason:"clike",ruby:"clike",sass:"css",scss:"css",scala:"java",smarty:"markup",swift:"clike",textile:"markup",twig:"markup",typescript:"javascript",vbnet:"basic",wiki:"markup",xeora:"markup"},a={},c="none",s=document.getElementsByTagName("script");s=s[s.length-1];var r="components/";if(s.hasAttribute("data-autoloader-path")){var t=s.getAttribute("data-autoloader-path").trim();t.length>0&&!/^[a-z]+:\/\//i.test(s.src)&&(r=t.replace(/\/?$/,"/"))}else/[\w-]+\.js$/.test(s.src)&&(r=s.src.replace(/[\w-]+\.js$/,"components/"));var n=Prism.plugins.autoloader={languages_path:r,use_minified:!0},s=function(e,a,c){var s=document.createElement("script");s.src=e,s.async=!0,s.onload=function(){document.body.removeChild(s),a&&a()},s.onerror=function(){document.body.removeChild(s),c&&c()},document.body.appendChild(s)},i=function(e){return n.languages_path+"prism-"+e+(n.use_minified?".min":"")+".js"},l=function(e,c){var s=a[e];s||(s=a[e]={});var r=c.getAttribute("data-dependencies");!r&&c.parentNode&&"pre"===c.parentNode.tagName.toLowerCase()&&(r=c.parentNode.getAttribute("data-dependencies")),r=r?r.split(/\s*,\s*/g):[],o(r,function(){u(e,function(){Prism.highlightElement(c)})})},o=function(e,a,c){"string"==typeof e&&(e=[e]);var s=0,r=e.length,t=function(){r>s?u(e[s],function(){s++,t()},function(){c&&c(e[s])}):s===r&&a&&a(e)};t()},u=function(c,r,t){var n=function(){var e=!1;c.indexOf("!")>=0&&(e=!0,c=c.replace("!",""));var n=a[c];if(n||(n=a[c]={}),r&&(n.success_callbacks||(n.success_callbacks=[]),n.success_callbacks.push(r)),t&&(n.error_callbacks||(n.error_callbacks=[]),n.error_callbacks.push(t)),!e&&Prism.languages[c])p(c);else if(!e&&n.error)k(c);else if(e||!n.loading){n.loading=!0;var l=i(c);s(l,function(){n.loading=!1,p(c)},function(){n.loading=!1,n.error=!0,k(c)})}},l=e[c];l&&l.length?o(l,n):n()},p=function(e){a[e]&&a[e].success_callbacks&&a[e].success_callbacks.length&&a[e].success_callbacks.forEach(function(a){a(e)})},k=function(e){a[e]&&a[e].error_callbacks&&a[e].error_callbacks.length&&a[e].error_callbacks.forEach(function(a){a(e)})};Prism.hooks.add("complete",function(e){e.element&&e.language&&!e.grammar&&e.language!==c&&l(e.language,e.element)})}}();

diff --git a/routes/all.js b/routes/all.js
new file mode 100644 (file)
index 0000000..1c0d052
--- /dev/null
+++ b/routes/all.js
@@ -0,0 +1,11 @@
+var router = require("express").Router();
+
+// AJAX requests:
+router.use("/", require("./users"));
+router.use("/", require("./courses"));
+router.use("/", require("./assessments"));
+
+// Pages:
+router.use("/", require("./pages"));
+
+module.exports = router;

diff --git a/routes/assessments.js b/routes/assessments.js
new file mode 100644 (file)
index 0000000..559f08f
--- /dev/null
+++ b/routes/assessments.js
@@ -0,0 +1,96 @@
+let router = require("express").Router();
+const access = require("../utils/access");
+const UserModel = require("../models/user");
+const AssessmentModel = require("../models/assessment");
+const AssessmentEntity = require("../entities/assessment");
+const CourseModel = require("../models/course");
+const params = require("../config/parameters");
+const validator = require("../public/javascripts/utils/validation");
+const ObjectId = require("bson-objectid");
+const sanitizeHtml = require('sanitize-html');
+
+router.get("/add/assessment", access.ajax, access.logged, (req,res) => {
+       const name = req.query["name"];
+       const cid = req.query["cid"];
+       let error = validator({cid:cid, name:name}, "Assessment");
+       if (error.length > 0)
+               return res.json({errmsg:error});
+       AssessmentModel.add(req.user._id, ObjectId(cid), name, (err,assessment) => {
+               access.checkRequest(res, err, assessment, "Assessment addition failed", () => {
+                       res.json(assessment);
+               });
+       });
+});
+
+router.post("/update/assessment", access.ajax, access.logged, (req,res) => {
+       const assessment = JSON.parse(req.body["assessment"]);
+       let error = validator(assessment, "Assessment");
+       if (error.length > 0)
+               return res.json({errmsg:error});
+       const sanitizeOpts = {allowedTags: sanitizeHtml.defaults.allowedTags.concat([ 'img' ]) };
+       assessment.introduction = sanitizeHtml(assessment.introduction, sanitizeOpts);
+       assessment.conclusion = sanitizeHtml(assessment.conclusion, sanitizeOpts);
+       assessment.questions.forEach( q => {
+               q.wording = sanitizeHtml(q.wording, sanitizeOpts);
+               //q.answer = sanitizeHtml(q.answer); //if text (TODO: it's an array in this case?!)
+               for (let i=0; i<q.options.length; i++) //if QCM
+                       q.options[i] = sanitizeHtml(q.options[i], sanitizeOpts);
+       });
+       AssessmentModel.update(req.user._id, assessment, (err,ret) => {
+               access.checkRequest(res, err, ret, "Assessment update failed", () => {
+                       res.json({});
+               });
+       });
+});
+
+// Generate and set student password, return it
+router.get("/start/assessment", access.ajax, (req,res) => {
+       let number = req.query["number"];
+       let aid = req.query["aid"];
+       let error = validator({ _id:aid, papers:[{number:number}] }, "Assessment");
+       if (error.length > 0)
+               return res.json({errmsg:error});
+       AssessmentModel.startSession(ObjectId(aid), number, (err,ret) => {
+               access.checkRequest(res,err,ret,"Failed session initialization", () => {
+                       // Set password
+                       res.cookie("password", ret.password, {
+                               httpOnly: true,
+                               maxAge: params.cookieExpire,
+                       });
+                       res.json(ret); //contains questions+password
+               });
+       });
+});
+
+router.get("/send/answer", access.ajax, (req,res) => {
+       let aid = req.query["aid"];
+       let number = req.query["number"];
+       let password = req.query["password"];
+       let input = JSON.parse(req.query["answer"]);
+       let error = validator({ _id:aid, papers:[{number:number,password:password,inputs:[input]}] }, "Assessment");
+       if (error.length > 0)
+               return res.json({errmsg:error});
+       AssessmentEntity.setInput(ObjectId(aid), number, password, input, (err,ret) => {
+               access.checkRequest(res,err,ret,"Cannot send answer", () => {
+                       res.json({});
+               });
+       });
+});
+
+router.get("/end/assessment", access.ajax, (req,res) => {
+       let aid = req.query["aid"];
+       let number = req.query["number"];
+       let password = req.query["password"];
+       let error = validator({ _id:aid, papers:[{number:number,password:password}] }, "Assessment");
+       if (error.length > 0)
+               return res.json({errmsg:error});
+       // Destroy pwd, set endTime, return conclusion
+       AssessmentModel.endSession(ObjectId(aid), number, password, (err,conclusion) => {
+               access.checkRequest(res,err,conclusion,"Cannot end assessment", () => {
+                       res.clearCookie('password');
+                       res.json(conclusion);
+               });
+       });
+});
+
+module.exports = router;

diff --git a/routes/courses.js b/routes/courses.js
new file mode 100644 (file)
index 0000000..d221858
--- /dev/null
+++ b/routes/courses.js
@@ -0,0 +1,77 @@
+let router = require("express").Router();
+const access = require("../utils/access.js");
+const validator = require("../public/javascripts/utils/validation");
+const sanitizeHtml = require('sanitize-html');
+const ObjectId = require("bson-objectid");
+const CourseEntity = require("../entities/course");
+const CourseModel = require("../models/course");
+
+router.get('/add/course', access.ajax, access.logged, (req,res) => {
+       let code = req.query["code"];
+       let description = sanitizeHtml(req.query["description"]);
+       let error = validator({code:code}, "Course");
+       if (error.length > 0)
+               return res.json({errmsg:error});
+       CourseEntity.insert(req.user._id, code, description, (err,course) => {
+               access.checkRequest(res, err, course, "Course addition failed", () => {
+                       res.json(course);
+               });
+       });
+});
+
+router.get("/set/password", access.ajax, access.logged, (req,res) => {
+       let cid = req.query["cid"];
+       let pwd = req.query["pwd"];
+       let error = validator({password:pwd, _id:cid}, "Course");
+       if (error.length > 0)
+               return res.json({errmsg:error});
+       CourseModel.setPassword(req.user._id, ObjectId(cid), pwd, (err,ret) => {
+               access.checkRequest(res, err, ret, "password update failed", () => {
+                       res.json({});
+               });
+       });
+});
+
+router.post('/import/students', access.ajax, access.logged, (req,res) => {
+       let cid = req.body["cid"];
+       let students = JSON.parse(req.body["students"]);
+       let error = validator({_id:cid, students: students}, "Course");
+       if (error.length > 0)
+               return res.json({errmsg:error});
+       access.getUser(req, res, (err,user) => {
+               if (!!err)
+                       return res.json(err);
+               CourseModel.importStudents(req.user._id, ObjectId(cid), students, (err,ret) => {
+                       access.checkRequest(res, err, ret, "Students addition failed", () => {
+                               res.json({});
+                       });
+               });
+       });
+});
+
+router.get('/get/student', access.ajax, (req,res) => {
+       let number = req.query["number"];
+       let cid = req.query["cid"];
+       let error = validator({ _id: cid, students: [{number:number}] }, "Course");
+       if (error.length > 0)
+               return res.json({errmsg:error});
+       CourseEntity.getStudent(ObjectId(cid), number, (err,ret) => {
+               access.checkRequest(res, err, ret, "Failed retrieving student", () => {
+                       res.json({student: ret.students[0]});
+               });
+       });
+});
+
+router.get('/remove/course', access.ajax, access.logged, (req,res) => {
+       let cid = req.query["cid"];
+       let error = validator({_id:cid}, "Course");
+       if (error.length > 0)
+               return res.json({errmsg:error});
+       CourseModel.remove(req.user._id, ObjectId(cid), (err,ret) => {
+               access.checkRequest(res, err, ret, "Course removal failed", () => {
+                       res.json({});
+               });
+       });
+});
+
+module.exports = router;

diff --git a/routes/pages.js b/routes/pages.js
new file mode 100644 (file)
index 0000000..37b84cf
--- /dev/null
+++ b/routes/pages.js
@@ -0,0 +1,136 @@
+let router = require("express").Router();
+const access = require("../utils/access");
+const UserEntity = require("../entities/user");
+const AssessmentEntity = require("../entities/assessment");
+const CourseModel = require("../models/course");
+const AssessmentModel = require("../models/assessment");
+
+// Actual pages (least specific last)
+
+// List initials and count assessments
+router.get("/", (req,res) => {
+       UserEntity.getAll( (err,userArray) => {
+               if (!!err)
+                       return res.json(err);
+               res.render("index", {
+                       title: "home",
+                       userArray: userArray,
+               });
+       });
+});
+
+// Login screen
+router.get("/login", access.unlogged, (req,res) => {
+       res.render("login", {
+               title: "login",
+       });
+});
+
+// Redirection screens when possible cheating attempt detected in exam
+router.get("/enablejs", (req,res) => {
+       res.render("enable-js", {
+               title: "JS disabled",
+       });
+});
+
+router.get("/nodevtools", (req,res) => {
+       res.render("no-devtools", {
+               title: "Devtools enabled",
+       });
+});
+
+// List courses of some user (should be [a-z]+[0-9]* but fails...)
+router.get("/:initials([a-z0-9]+)", (req,res) => {
+       let initials = req.params["initials"];
+       CourseModel.getByInitials(initials, (err,courseArray) => {
+               if (!!err)
+                       return res.json(err);
+               access.getUser(req, res, (err2,user) => {
+                       const isTeacher = !!user && user.initials == initials;
+                       // Strip students from courses if not course admin (TODO: not required in any case)
+                       if (!isTeacher)
+                       {
+                               courseArray.forEach( c => {
+                                       delete c["students"];
+                               });
+                       }
+                       res.render("course-list", {
+                               title: initials + " courses",
+                               courseArray: courseArray,
+                               teacher: isTeacher,
+                               initials: initials,
+                       });
+               });
+       });
+});
+
+// Detailed content of one course
+router.get("/:initials([a-z0-9]+)/:courseCode([a-z0-9._-]+)", (req,res) => {
+       let initials = req.params["initials"];
+       let code = req.params["courseCode"];
+       CourseModel.getByRefs(initials, code, (err,course) => {
+               access.checkRequest(res, err, course, "Course not found", () => {
+                       AssessmentEntity.getByCourse(course._id, (err2,assessmentArray) => {
+                               if (!!err)
+                                       return res.json(err);
+                               access.getUser(req, res, (err2,user) => {
+                                       const isTeacher = !!user && user.initials == initials;
+                                       // Strip students from course if not course admin
+                                       if (!isTeacher)
+                                               delete course["students"];
+                                       res.render("course", {
+                                               title: "course " + initials + "/" + code,
+                                               course: course,
+                                               assessmentArray: assessmentArray,
+                                               teacher: isTeacher,
+                                               initials: initials,
+                                       });
+                               });
+                       });
+               });
+       });
+});
+
+// Display assessment (exam or open status)
+router.get("/:initials([a-z0-9]+)/:courseCode([a-z0-9._-]+)/:assessmentName([a-z0-9._-]+)", (req,res) => {
+       let initials = req.params["initials"];
+       let code = req.params["courseCode"];
+       let name = req.params["assessmentName"];
+       AssessmentModel.getByRefs(initials, code, name, (err,assessment) => {
+               access.checkRequest(res, err, assessment, "Assessment not found", () => {
+                       if (!assessment.active)
+                               return res.json({errmsg: "Assessment is idle"});
+                       delete assessment["papers"]; //always remove recorded students answers
+                       if (assessment.mode == "exam")
+                       {
+                               if (!!req.headers['user-agent'].match(/(SpecialAgent|HeadlessChrome|PhantomJS)/))
+                               {
+                                       // Basic headless browser detection
+                                       return res.json({errmsg: "Headless browser detected"});
+                               }
+                               // Strip conclusion + questions if exam mode (stepwise process)
+                               delete assessment["conclusion"];
+                               delete assessment["questions"];
+                       }
+                       res.render("assessment", {
+                               title: "assessment " + initials + "/" + code + "/" + name,
+                               assessment: assessment,
+                       });
+               });
+       });
+});
+
+// Monitor: --> after identification (password), always send password hash with requests
+router.get("/:initials([a-z0-9]+)/:courseCode([a-z0-9._-]+)/:assessmentName([a-z0-9._-]+)/monitor", (req,res) => {
+       let initials = req.params["initials"];
+       let code = req.params["courseCode"];
+       let name = req.params["assessmentName"];
+       res.render("monitor", {
+               title: "monitor assessment " + code + "/" + name,
+               initials: initials,
+               code: code,
+               name: name,
+       });
+});
+
+module.exports = router;

diff --git a/routes/users.js b/routes/users.js
new file mode 100644 (file)
index 0000000..c42b447
--- /dev/null
+++ b/routes/users.js
@@ -0,0 +1,117 @@
+let router = require("express").Router();
+const validator = require('../public/javascripts/utils/validation');
+const UserModel = require('../models/user');
+const UserEntity = require('../entities/user');
+const maild = require('../utils/mailer');
+const TokenGen = require("../utils/tokenGenerator");
+const access = require("../utils/access");
+const params = require("../config/parameters");
+
+// to: object user
+function sendLoginToken(subject, to, res)
+{
+       // Set login token and send welcome(back) email with auth link
+       let token = TokenGen.generate(params.token.length);
+       UserEntity.setLoginToken(token, to._id, to.ip, (err,ret) => {
+               access.checkRequest(res, err, ret, "Cannot set login token", () => {
+                       maild.send({
+                               from: params.mail.from,
+                               to: to.email,
+                               subject: subject,
+                               body: "Hello " + to.initials + "!\n" +
+                                       "Access your account here: " +
+                                       params.siteURL + "/authenticate?token=" + token + "\\n" +
+                                       "Token will expire in " + params.token.expire/(1000*60) + " minutes."
+                       }, err => {
+                               res.json(err || {});
+                       });
+               });
+       });
+}
+
+router.get('/register', access.ajax, access.unlogged, (req,res) => {
+       let email = decodeURIComponent(req.query.email);
+       let forename = decodeURIComponent(req.query.forename);
+       let name = decodeURIComponent(req.query.name);
+       const newUser = {
+               email: email,
+               name: name,
+               forename: forename,
+       };
+       let error = validator(newUser, "User");
+       if (error.length > 0)
+               return res.json({errmsg:error});
+       if (!UserModel.whitelistCheck(newUser.email))
+               return res.json({errmsg: "Email not in whitelist"});
+       UserEntity.getByEmail(newUser.email, (err,user0) => {
+               access.checkRequest(res, err, !user0?["ok"]:{}, "An account exists with this email", () => {
+                       UserModel.create(newUser, (err,user) => {
+                               access.checkRequest(res, err, user, "Registration failed", () => {
+                                       user.ip = req.ip;
+                                       sendLoginToken("Welcome to " + params.siteURL, user, res);
+                               });
+                       });
+               });
+       });
+});
+
+// Login:
+router.get('/sendtoken', access.ajax, access.unlogged, (req,res) => {
+       let email = decodeURIComponent(req.query.email);
+       let error = validator({email:email}, "User");
+       if (error.length > 0)
+               return res.json({errmsg:error});
+       UserEntity.getByEmail(email, (err,user) => {
+               access.checkRequest(res, err, user, "Unknown user", () => {
+                       user.ip = req.ip;
+                       sendLoginToken("Token for " + params.siteURL, user, res);
+               });
+       });
+});
+
+// Authentication process, optionally with email changing:
+router.get('/authenticate', access.unlogged, (req,res) => {
+       let loginToken = req.query.token;
+       let error = validator({token:loginToken}, "User");
+       if (error.length > 0)
+               return res.json({errmsg:error});
+       UserEntity.getByLoginToken(loginToken, (err,user) => {
+               access.checkRequest(res, err, user, "Invalid token", () => {
+                       if (user.loginToken.ip != req.ip)
+                               return res.json({errmsg: "IP address mismatch"});
+                       let now = new Date();
+                       let tsNow = now.getTime();
+                       // If token older than params.tokenExpire, do nothing
+                       if (user.loginToken.timestamp + params.token.expire < tsNow)
+                               return res.json({errmsg: "Token expired"});
+                       // Generate and update session token + destroy login token
+                       let token = TokenGen.generate(params.token.length);
+                       UserEntity.setSessionToken(token, user._id, (err,ret) => {
+                               access.checkRequest(res, err, ret, "Authentication failed", () => {
+                                       // Set cookies and redirect to user main control panel
+                                       res.cookie("token", token, {
+                                               httpOnly: true,
+                                               maxAge: params.cookieExpire,
+                                       });
+                                       res.cookie("initials", user.initials, {
+                                               httpOnly: true,
+                                               maxAge: params.cookieExpire,
+                                       });
+                                       res.redirect("/" + user.initials);
+                               });
+                       });
+               });
+       });
+});
+
+router.get('/logout', access.logged, (req,res) => {
+       UserModel.logout(req.user._id, req.cookies.token, (err,ret) => {
+               access.checkRequest(res, err, ret, "Logout failed", () => {
+                       res.clearCookie("initials");
+                       res.clearCookie("token");
+                       res.redirect('/');
+               });
+       });
+});
+
+module.exports = router;

diff --git a/setup/README b/setup/README
new file mode 100644 (file)
index 0000000..473b00e
--- /dev/null
+++ b/setup/README
@@ -0,0 +1,24 @@
+## Prerequisites
+
+node (v.6.10+), npm, mongo (v3.4+)
+
+msmtp: for sending e-mails
+
+git-fat: for large binary objects
+
+## Local installation
+
+First of all:
+    npm i
+
+Copy the files config/\*.js.dist without .dist extension.
+Adjust their content to your liking (especially DB name and user & mail settings).
+
+Then start mongodb service, create a database and user corresponding to the parameters,
+and run the mongo script database.js in setup/ folder:
+    load("setup/database.js") [from mongo shell]
+
+All should be good now:
+    npm start
+
+Note the "student.csv.sample" file in this folder, to test features locally.

diff --git a/setup/database.js b/setup/database.js
new file mode 100644 (file)
index 0000000..b9a392d
--- /dev/null
+++ b/setup/database.js
@@ -0,0 +1,13 @@
+// TODO: createCollections users, courses, assessments
+// with:
+// users
+//   unique initials, email
+//   index initials, email
+// courses
+//   unique (code,uid)
+//   index (code,uid)
+// assessments
+//   unique (cid, name)
+//   index (cid, name)
+// db.assessments.createIndex( { cid: 1, name: 1 } );
+// https://docs.mongodb.com/manual/core/index-compound/

diff --git a/setup/students.sample.csv b/setup/students.sample.csv
new file mode 100644 (file)
index 0000000..91d1105
--- /dev/null
+++ b/setup/students.sample.csv
@@ -0,0 +1,28 @@
+forename,name
+William,Plaisance
+Rosamonde,Dupuy
+Fabienne,Aubin
+Grégoire,Léveillé
+Fantina,Quinn
+Amitee,Morneau
+William,Lespérance
+Dreux,Vadeboncoeur
+Brigliador,Cadieux
+Grosvenor,Provencher
+Landers,Devost
+Joy,Laprise
+Dielle,Séguin
+Sidney,DeGrasse
+Jules,Gaillou
+Archaimbau,Bizier
+Dexter,Aucoin
+Searlas,Rivière
+Germain,Charpie
+Honore,Charlesbois
+Georges,LaCaille
+Anne,Ruest
+Searlas,Rochefort
+Ferrau,Adler
+Aimée,Asselin
+Delit,Cyr
+Noël,Babin

diff --git a/sockets.js b/sockets.js
new file mode 100644 (file)
index 0000000..38a9929
--- /dev/null
+++ b/sockets.js
@@ -0,0 +1,87 @@
+var message = require("./public/javascripts/utils/socketMessages.js");
+const params = require("./config/parameters");
+
+// TODO: when teacher connect on monitor, io.of("appropriate namespace").on(connect student) { ... }
+// --> 2 sockets on monitoring page: one with ns "/" et one dedicated to the exam, triggered after the first
+// --> The monitoring page should not be closed during exam (otherwise monitors won't receive any more data)
+
+function quizzRoom(socket) {
+       let students = { };
+
+       // Student or monitor stuff
+       const isTeacher = !!socket.handshake.query.secret && socket.handshake.query.secret == params.secret;
+
+       if (isTeacher)
+       {
+               // TODO: on student disconnect, too
+               socket.on(message.newAnswer, m => { //got answer from student
+                       socket.emit(message.newAnswer, m);
+               });
+               socket.on(message.socketFeedback, m => { //send feedback to student (answers)
+                       if (!!students[m.number])
+                               socket.broadcast.to(students[m.number]).emit(message.newFeedback, { feedback:m.feedback });
+               });
+               socket.on("disconnect", m => {
+                       // Reset student array if no more active teacher connections (TODO: condition)
+                       students = { };
+               });
+       }
+
+       else //student
+       {
+               const number = socket.handshake.query.number;
+               const password = socket.handshake.query.password;
+               // Prevent socket connection (just ignore) if student already connected
+               if (!!students[number] && students[number].password != password)
+                       return;
+               students[number] = {
+                       sid: socket.id,
+                       password: password,
+               };
+               socket.on(message.newFeedback, () => { //got feedback from teacher
+                       socket.emit(message.newFeedback, m);
+               });
+               // NOTE: nothing on disconnect --> teacher disconnect trigger students cleaning
+       }
+}
+
+module.exports = function(io) {
+
+       // NOTE: if prof connected with 2 tabs and close 1, quizz should not break, thus following counter
+       let namespaces = { };
+
+       io.of("/").on("connection", socketProf => {
+               function closeQuizz(fullPath) {
+                       namespaces[fullPath].counter--;
+                       if (namespaces[fullPath].counter == 0)
+                       {
+                               // https://stackoverflow.com/questions/26400595/socket-io-how-do-i-remove-a-namespace
+                               const connectedSockets = Object.keys(namespaces[fullPath].nsp.connected);
+                               connectedSockets.forEach( sid => {
+                                       namespaces[fullPath].nsp.connected[sid].disconnect();
+                               });
+                               namespaces[fullPath].nsp.removeAllListeners();
+                               delete io.nsps[fullPath];
+                       }
+               }
+               // Only prof account can connect default namespace
+               socketProf.on(message.startQuizz, m => {
+                       // m contient quizz ID + fullPath (initials+path+name)
+                       const quizzNamespace = io.of(m.fullPath);
+                       if (!namespaces[m.fullPath])
+                       {
+                               namespaces[m.fullPath] = { nsp:quizzNamespace, counter:1 };
+                               quizzNamespace.on("connection", quizzRoom); //après ça : prof can connect in quizz too
+                               socketProf.emit(message.quizzReady);
+                               socketProf.on(message.endQuizz, m2 => {
+                                       closeQuizz(m.fullPath);
+                               });
+                               socketProf.on("disconnect", m2 => {
+                                       closeQuizz(m.fullPath); //TODO: this should delete all students in array
+                               });
+                       }
+                       else
+                               namespaces[m.fullPath]++;
+               });
+       });
+}

diff --git a/utils/access.js b/utils/access.js
new file mode 100644 (file)
index 0000000..1f91724
--- /dev/null
+++ b/utils/access.js
@@ -0,0 +1,55 @@
+const _ = require("underscore");
+const UserEntity = require("../entities/user");
+
+let Access =
+{
+       getUser: function(req, res, callback)
+       {
+               if (!res.locals.loggedIn)
+                       return callback({errmsg: "Not logged in!"}, undefined);
+               UserEntity.getBySessionToken(req.cookies.token, function(err, user) {
+                       if (!user)
+                               return callback({errmsg: "Not logged in!"}, undefined);
+                       return callback(null, user);
+               });
+       },
+
+       // Before loading sensible content, check + save credentials
+       logged: function(req, res, next)
+       {
+               Access.getUser(req, res, (err,user) => {
+                       if (!!err)
+                               return res.json(err);
+                       req.user = user;
+                       next();
+               });
+       },
+
+       // Prevent access to "anonymous pages"
+       unlogged: function(req, res, next)
+       {
+               if (!!req.user)
+                       return res.json({errmsg: "Already logged in!"});
+               next();
+       },
+
+       // Prevent direct access to AJAX results
+       ajax: function(req, res, next)
+       {
+               if (!req.xhr)
+                       return res.json({errmsg: "Unauthorized access"});
+               next();
+       },
+
+       // Check for errors before callback (continue page loading). TODO: better name.
+       checkRequest: function(res, err, out, msg, cb)
+       {
+               if (!!err)
+                       return res.json(err);
+               if (!out || _.isEmpty(out))
+                       return res.json({errmsg: msg});
+               cb();
+       },
+};
+
+module.exports = Access;

diff --git a/utils/database.js b/utils/database.js
new file mode 100644 (file)
index 0000000..542588d
--- /dev/null
+++ b/utils/database.js
@@ -0,0 +1,9 @@
+const mongojs = require("mongojs");
+const params = require("../config/parameters");
+
+const connectionString =
+       params.db.user + ":" + params.db.password + "@" + params.db.host + ":" + params.db.port + "/" + params.db.name
+
+const db = mongojs(connectionString);
+
+module.exports = db;

diff --git a/utils/mailer.js b/utils/mailer.js
new file mode 100644 (file)
index 0000000..bcd3dc5
--- /dev/null
+++ b/utils/mailer.js
@@ -0,0 +1,42 @@
+const params = require("../config/parameters");
+const { exec } = require('child_process');
+
+let Mailer =
+{
+       // o: {from(*), to(*), subject, body} - (*): mandatory
+       send: function(o, callback)
+       {
+               let from = o.from;
+               let to = o.to;
+               let subject = !!o.subject ? o.subject : "[No subject]";
+               let body = !!o.body ? o.body : "";
+
+               // In development mode, just log message:
+               let env = process.env.NODE_ENV || 'development';
+               if ('development' === env)
+               {
+                       console.log("New mail: from " + from + " / to " + to);
+                       console.log("Subject: " + subject);
+                       let msgText = body.split('\\n');
+                       msgText.forEach(msg => { console.log(msg); });
+                       callback({});
+               }
+               else
+               {
+                       exec(
+                               "printf 'From: " + from + "\n" +
+                                       "To: " + to + "\n" +
+                                       "Subject: " + subject + "\n" +
+                                       body + "' | msmtp -a " + params.mail.account + " " + to,
+                               (err, stdout, stderr) => {
+                                       callback(err);
+                                       // the *entire* stdout and stderr (buffered)
+                                       //console.log("stdout: " + stdout);
+                                       //console.log("stderr: " + stderr);
+                               }
+                       );
+               }
+       }
+};
+
+module.exports = Mailer;

diff --git a/utils/tokenGenerator.js b/utils/tokenGenerator.js
new file mode 100644 (file)
index 0000000..054398e
--- /dev/null
+++ b/utils/tokenGenerator.js
@@ -0,0 +1,18 @@
+let TokenGen =
+{
+       rand: function()
+       {
+               return Math.random().toString(36).substr(2); // remove `0.`
+       },
+
+       generate: function(tlen)
+       {
+               var res = "";
+               var nbRands = Math.ceil(tlen/10); //10 = min length of a rand() string
+               for (var i = 0; i < nbRands; i++)
+                       res += TokenGen.rand();
+               return res.substr(0, tlen);
+       },
+};
+
+module.exports = TokenGen;

diff --git a/views/assessment.pug b/views/assessment.pug
new file mode 100644 (file)
index 0000000..9caa03d
--- /dev/null
+++ b/views/assessment.pug
@@ -0,0 +1,66 @@
+extends withQuestions
+
+block append stylesheets
+       link(rel="stylesheet" href="/stylesheets/assessment.css")
+       noscript
+               meta(http-equiv="Refresh" content="0; URL=/enablejs")
+
+block rightMenu
+       a#rightButton.btn-floating.btn-large.grey(href=assessment.name + "/monitor")
+               i.material-icons video_label
+
+block content
+       .container#assessment
+               .row
+                       #warning.modal
+                               .modal-content
+                                       p Your answer to the current question was sent to the server.
+                                       p To avoid future unpleasant surprises, please don't
+                                       ul
+                                               li resize the window, or
+                                               li lose window focus.
+                               .modal-footer
+                                       .center-align
+                                               a.modal-action.modal-close.waves-effect.waves-light.btn-flat(href="#!") Got it!
+               .row
+                       .col.s12.m10.offset-m1.l8.offset-l2.xl6.offset-xl3
+                               h4= assessment.name
+                               #stage0(v-if="stage==0")
+                                       .card
+                                               .input-field.inline.on-left
+                                                       label(for="number") Number
+                                                       input#number(type="text" v-model="student.number" @keyup.enter="getStudent()")
+                                               button.waves-effect.waves-light.btn(@click="getStudent()") Send
+                               #stage1(v-if="stage==1")
+                                       .card
+                                               if assessment.mode != "open"
+                                                       .input-field.inline.on-left
+                                                               label(for="forename") Forename
+                                                               input#forename(type="text" v-model="student.forename" disabled)
+                                                       .input-field.inline
+                                                               label(for="name") Name
+                                                               input#name(type="text" v-model="student.name" disabled)
+                                               p
+                                                       if assessment.mode != "open"
+                                                               button.waves-effect.waves-light.btn.on-left(@click="cancelStudent") Cancel
+                                                       button.waves-effect.waves-light.btn(@click="startAssessment") Start!
+                               #stage1_2_4(v-if="stage==1 || stage==2 || stage == 4")
+                                       .card
+                                               .introduction(v-html="assessment.introduction")
+                               #stage2_4(v-if="stage==2 || stage==4")
+                                       if assessment.time > 0
+                                               .card
+                                                       .timer.center(v-if="stage==2") {{ countdown }}
+                                       .card
+                                               statements(:assessment="assessment" :student="student" :stage="stage" :inputs="inputs" @gameover="endAssessment")
+                               #stage3(v-if="stage==3")
+                                       .card
+                                               .finish Exam completed ☺ ...don't close the window!
+                               #stage3_4(v-if="stage==3 || stage==4")
+                                       .card
+                                               .conclusion(v-html="assessment.conclusion")
+
+block append javascripts
+       script.
+               let assessment = !{JSON.stringify(assessment)};
+       script(src="/javascripts/assessment.js")

diff --git a/views/course-list.pug b/views/course-list.pug
new file mode 100644 (file)
index 0000000..5ab2dcf
--- /dev/null
+++ b/views/course-list.pug
@@ -0,0 +1,48 @@
+extends layout
+
+block stylesheets
+       link(rel="stylesheet" href="/stylesheets/courseList.css")
+
+block content
+       .container#courseList
+               if teacher
+                       .row
+                               // Modal Structure
+                               #newCourse.modal
+                                       .modal-content
+                                               form(@submit.prevent="submit")
+                                                       .input-field
+                                                               input#code.validate(type="text" v-model="newCourse.code" autofocus required)
+                                                               label(for="code") Code
+                                                       .input-field
+                                                               input#description.validate(type="text" v-model="newCourse.description" required)
+                                                               label(for="description") Description
+                                       .modal-footer
+                                               #submit.center-align
+                                               a.waves-effect.waves-light.btn(href="#!" @click="addCourse()")
+                                                       span Submit
+                                                       i.material-icons.right send
+               .row
+                       .col.s12.m10.offset-m1.l8.offset-l2.xl6.offset-xl3
+                               .card
+                                       if teacher
+                                               // Modal Trigger
+                                               .center-align
+                                                       a.waves-effect.waves-light.btn.modal-trigger(href="#newCourse") New course
+                                       table
+                                               thead
+                                                       tr
+                                                               th Code
+                                                               th Description
+                                               tbody
+                                                       tr.course(v-for="course in courseArray" @click.left="redirect(course.code)" @contextmenu.prevent="deleteCourse(course)")
+                                                               td {{ course.code }}
+                                                               td(v-html="course.description")
+
+block javascripts
+       script(src="/javascripts/courseList.js")
+       script(src="/javascripts/utils/validation.js")
+       script.
+               let courseArray = !{JSON.stringify(courseArray)};
+               const initials = "#{initials}";
+               const admin = #{teacher};

diff --git a/views/course.pug b/views/course.pug
new file mode 100644 (file)
index 0000000..16552ce
--- /dev/null
+++ b/views/course.pug
@@ -0,0 +1,197 @@
+extends withQuestions
+
+block append stylesheets
+       link(rel="stylesheet" href="/stylesheets/course.css")
+
+block content
+       .container#course
+               if teacher
+                       #newAssessment.modal
+                               .modal-content
+                                       form(@submit.prevent="addAssessment")
+                                               .input-field
+                                                       input#assessmentName(type="text" v-model="newAssessment.name" required)
+                                                       label(for="assessmentName") Name
+                               .modal-footer
+                                       .center-align
+                                               a.waves-effect.waves-light.btn(href="#!" @click="addAssessment()")
+                                                       span Submit
+                                                       i.material-icons.right send
+                       #assessmentSettings.modal
+                               .modal-content
+                                       form
+                                               p
+                                                       input#active(type="checkbox" v-model="assessment.active")
+                                                       label(for="active") Active
+                                               p
+                                                       input#secure(name="status" type="radio" value="secure" v-model="assessment.mode")
+                                                       label(for="secure") Exam mode, secured (class only)
+                                               p
+                                                       input#exam(name="status" type="radio" value="exam" v-model="assessment.mode")
+                                                       label(for="exam") Exam mode, free (class only)
+                                               p
+                                                       input#open(name="status" type="radio" value="open" v-model="assessment.mode")
+                                                       label(for="open") Open to everyone
+                                               p
+                                                       input#fixed(type="checkbox" v-model="assessment.fixed")
+                                                       label(for="fixed") Fixed questions order
+                                               p
+                                                       input#displayOne(name="display" type="radio" value="one" v-model="assessment.display")
+                                                       label(for="displayOne") One question at a time
+                                               p
+                                                       input#displayAll(name="display" type="radio" value="all" v-model="assessment.display")
+                                                       label(for="displayAll") Display all questions
+                                               .input-field
+                                                       input#time(type="number" v-model.number="assessment.time")
+                                                       label(for="time") Time (minutes)
+                               .modal-footer
+                                       .center-align
+                                               a.modal-action.modal-close.waves-effect.waves-light.btn-flat(href="#!") Done
+                       #assessmentEdit.modal
+                               .modal-content
+                                       form
+                                               .input-field
+                                                       textarea#introduction.materialize-textarea(v-model="assessment.introduction")
+                                                       label(for="introduction") Introduction
+                                               .input-field
+                                                       textarea#assessmentEdition.materialize-textarea(v-model="assessmentText")
+                                                       label(for="assessmentEdition") Assessment in text format
+                                               .input-field
+                                                       textarea#conclusion.materialize-textarea(v-model="assessment.conclusion")
+                                                       label(for="conclusion") Conclusion
+                               .modal-footer
+                                       .center-align
+                                               a.modal-action.modal-close.waves-effect.waves-light.btn-flat(href="#!") Done
+                       #gradeSettings.modal
+                               .modal-content
+                                       form(@submit.prevent="computeGrades")
+                                               .input-field
+                                                       input#points(type="number" v-model.number="settings.totalPoints" required)
+                                                       label(for="points") Total points
+                                               p
+                                                       input#partial(type="checkbox" v-model="settings.halfPoint")
+                                                       label(for="partial") Half point for partial answers? (≥ 50%)
+                                               p
+                                                       input#malus(type="checkbox" v-model="settings.zeroSum")
+                                                       label(for="malus") Lose points on wrong answers? ("Zero-sum" game)
+                               .modal-footer
+                                       .center-align
+                                               a.modal-action.modal-close.waves-effect.waves-light.btn(href="#!" @click="computeGrades()")
+                                                       span Compute
+                                                       i.material-icons.right send
+                       #detailedGrades.modal
+                               .modal-content
+                                       table
+                                               thead
+                                                       tr
+                                                               th Number
+                                                               th(v-for="assessment in assessmentArray") {{ assessment.name }}
+                                               tbody
+                                                       tr.grade(v-for="student in studentList(group)")
+                                                               td {{ student.number }}
+                                                               td(v-for="(assessment,i) in assessmentArray" @click="togglePresence(student.number,i)") {{ grade(i,student.number) }}
+                               .modal-footer
+                                       .center-align
+                                               a.modal-action.modal-close.waves-effect.waves-light.btn-flat(href="#!") Close
+               .row(v-show="mode=='view'")
+                       .col.s12.m10.offset-m1.l8.offset-l2.xl6.offset-xl3
+                               if teacher
+                                       h4.title(@click="toggleDisplay('students')") Students
+                                       .card(v-show="display=='students'")
+                                               .center-align
+                                                       input.hide#upload(type="file" @change="upload")
+                                                       button.on-left.waves-effect.waves-light.btn(@click="uploadTrigger()") Import
+                                               table
+                                                       thead
+                                                               tr
+                                                                       th Number
+                                                                       th Forename
+                                                                       th Name
+                                                                       th Group
+                                                       tbody
+                                                               tr.student(v-for="student in studentList(0)")
+                                                                       td {{ student.number }}
+                                                                       td {{ student.forename }}
+                                                                       td {{ student.name }}
+                                                                       td {{ student.group }}
+                               h4.title(@click="toggleDisplay('assessments')") Assessments
+                               .card(v-show="display=='assessments'")
+                                       if teacher
+                                               .center-align
+                                                       a.on-left.waves-effect.waves-light.btn.modal-trigger(href="#newAssessment") New assessment
+                                                       input#password(type="password" v-model="monitorPwd" @keyup.enter="setPassword" placeholder="Password" title="Monitoring password")
+                                       table
+                                               thead
+                                                       tr
+                                                               th Name
+                                                               th Coefficient
+                                                               th #Questions
+                                                               th Time
+                                               tbody
+                                                       tr.assessment(v-for="(assessment,i) in assessmentArray" @click.left="actionAssessment(i)" @contextmenu.prevent="deleteAssessment(assessment)")
+                                                               td {{ assessment.name }}
+                                                               td {{ assessment.coefficient }}
+                                                               td {{ assessment.questions.reduce( (a,b) => { return b.active ? a+1 : a; }, 0) }}
+                                                               td {{ assessment.time }}
+                               if teacher
+                                       h4.title(@click="toggleDisplay('grades')") Grades
+                                       .card(v-show="display=='grades'")
+                                               .center-align
+                                                       button.on-left.waves-effect.waves-light.btn(@click="gradeSettings()") Settings
+                                                       a#download.hide(href="#" ref="download")
+                                                       button.waves-effect.waves-light.btn(@click="download") Download
+                                               ul.tabs.tabs-fixed-width
+                                                       li.tab
+                                                               a(href="#group0") All
+                                                       li.tab(v-for="group in groupList()")
+                                                               a(:href="groupId(group,'hash')") G.{{ group }}
+                                               table.result(:id="groupId(group)" v-for="group in [0].concat(groupList())" @click="showDetails(group)")
+                                                       thead
+                                                               tr
+                                                                       th Number
+                                                                       th Forename
+                                                                       th Name
+                                                                       th Final
+                                                       tbody
+                                                               tr.grade(v-for="student in studentList(group)")
+                                                                       td {{ student.number }}
+                                                                       td {{ student.forename }}
+                                                                       td {{ student.name }}
+                                                                       td grade...
+                                                                       //td {{ grades[student.number].final }}
+                                                               tr.stats
+                                                                       td(colspan="4") Stats: range= stdev= mean=
+               if teacher
+                       .row(v-show="mode=='edit'")
+                               .col.s12.m10.offset-m1.l8.offset-l2.xl6.offset-xl3
+                                       h4 {{ assessment.name }}
+                                       .card
+                                               .center-align
+                                                       button.waves-effect.waves-light.btn.on-left(@click="materialOpenModal('assessmentSettings')") Settings
+                                                       button.waves-effect.waves-light.btn.on-left(@click="materialOpenModal('assessmentEdit')") Content
+                                                       button.waves-effect.waves-light.btn(@click="redirect(assessment.name)") View
+                                               #questionList
+                                                       .introduction(v-html="assessment.introduction")
+                                                       .question(v-for="(question,i) in assessment.questions" :class="{questionInactive:!question.active}")
+                                                               .wording(v-html="question.wording")
+                                                               .option(v-for="(option,j) in question.options" :class="{choiceCorrect:question.answer.includes(j)}" v-html="option")
+                                                               p
+                                                                       input(:id="checkBoxFixedId(i)" type="checkbox" v-model="question.fixed")
+                                                                       label.on-left(:for="checkBoxFixedId(i)") Fixed
+                                                                       input(:id="checkBoxActiveId(i)" type="checkbox" v-model="question.active")
+                                                                       label(:for="checkBoxActiveId(i)") Active
+                                                       .conclusion(v-html="assessment.conclusion")
+                                               .center-align
+                                                       button.waves-effect.waves-light.btn.on-left(@click="mode='view'") Cancel
+                                                       button.waves-effect.waves-light.btn(@click="updateAssessment") Send
+
+block append javascripts
+       script(src="//cdnjs.cloudflare.com/ajax/libs/PapaParse/4.3.6/papaparse.min.js")
+       script(src="/javascripts/utils/sha1.js")
+       script(src="/javascripts/utils/validation.js")
+       script.
+               let assessmentArray = !{JSON.stringify(assessmentArray)};
+               const course = !{JSON.stringify(course)};
+               const initials = "#{initials}";
+               const admin = #{teacher};
+       script(src="/javascripts/course.js")

diff --git a/views/enable-js.pug b/views/enable-js.pug
new file mode 100644 (file)
index 0000000..f05a445
--- /dev/null
+++ b/views/enable-js.pug
@@ -0,0 +1,4 @@
+extends layout
+
+block content
+       p.warn Javascript must be enabled. Change settings, and reload exam page.

diff --git a/views/error.pug b/views/error.pug
new file mode 100644 (file)
index 0000000..2baa3e2
--- /dev/null
+++ b/views/error.pug
@@ -0,0 +1,11 @@
+doctype html
+html
+
+       head
+               meta(charset="utf-8")
+               title Error
+
+       body
+               h1= message
+               h2= error.status
+               pre #{error.stack}

diff --git a/views/index.pug b/views/index.pug
new file mode 100644 (file)
index 0000000..70ac099
--- /dev/null
+++ b/views/index.pug
@@ -0,0 +1,19 @@
+extends layout
+
+block stylesheets
+       link(rel="stylesheet", href="/stylesheets/index.css")
+
+block content
+       .container
+               .row
+                       .card.col.s12.m8.offset-m2.l6.offset-l3.xl4.offset-xl4
+                               table
+                                       thead
+                                               tr
+                                                       th Name
+                                                       th Forename
+                                       tbody
+                                               each user in userArray
+                                                       tr.teacher(onClick="document.location.href='/" + user.initials+ "'")
+                                                               td= user.name
+                                                               td= user.forename

diff --git a/views/layout.pug b/views/layout.pug
new file mode 100644 (file)
index 0000000..a547638
--- /dev/null
+++ b/views/layout.pug
@@ -0,0 +1,60 @@
+doctype html
+html(lang="en")
+
+       head
+               meta(charset="UTF-8")
+               title qomet - #{title}
+               meta(name="viewport", content="width=device-width, initial-scale=1")
+               link(rel="stylesheet", href="//fonts.googleapis.com/icon?family=Material+Icons")
+               link(rel="stylesheet", href="//cdnjs.cloudflare.com/ajax/libs/materialize/0.100.2/css/materialize.min.css")
+               link(rel="stylesheet" href="/stylesheets/layout.css")
+               // favicon:
+               link(rel="apple-touch-icon", sizes="180x180", href="/favicon/apple-touch-icon.png")
+               link(rel="icon", type="image/png", sizes="32x32", href="/favicon/favicon-32x32.png")
+               link(rel="icon", type="image/png", sizes="16x16", href="/favicon/favicon-16x16.png")
+               link(rel="manifest", href="/favicon/manifest.json")
+               link(rel="mask-icon", href="/favicon/safari-pinned-tab.svg", color="#5bbad5")
+               link(rel="shortcut icon", href="/favicon/favicon.ico")
+               meta(name="msapplication-config", content="/favicon/browserconfig.xml")
+               meta(name="theme-color", content="#ffffff")
+               // -- end favicon
+               block stylesheets
+
+       body
+
+               header
+                       // Top-left menu
+                       button#leftButton.dropdown-button.btn.btn-floating.btn-large.waves-effect.waves-light.grey(data-activates="leftMenu" data-constrainwidth="false")
+                               i.material-icons menu
+                       ul#leftMenu.userMenu.dropdown-content
+                               li
+                                       a(href="/")
+                                               i.material-icons home
+                                               span Home
+                               if loggedIn
+                                       li
+                                               a(href="/" + myInitials)
+                                                       i.material-icons question_answer
+                                                       span Courses
+                               li.divider
+                               if loggedIn
+                                       li
+                                               a(href="/logout")
+                                                       i.material-icons power_settings_new
+                                                       span Logout
+                               else
+                                       li
+                                               a(href="/login")
+                                                       i.material-icons account_box
+                                                       span Login
+                       block rightMenu
+
+               main
+                       block content
+
+               script(src="//cdnjs.cloudflare.com/ajax/libs/underscore.js/1.8.3/underscore-min.js")
+               script(src="//code.jquery.com/jquery-3.2.1.min.js")
+               script(src="//cdnjs.cloudflare.com/ajax/libs/materialize/0.100.2/js/materialize.min.js")
+               script(src="//cdnjs.cloudflare.com/ajax/libs/vue/2.5.2/vue.js")
+               script(src="/javascripts/utils/socketMessages.js")
+               block javascripts

diff --git a/views/login.pug b/views/login.pug
new file mode 100644 (file)
index 0000000..215f83f
--- /dev/null
+++ b/views/login.pug
@@ -0,0 +1,33 @@
+extends layout
+
+block stylesheets
+       link(rel="stylesheet", href="/stylesheets/login.css")
+
+block content
+       .container#login
+               .row
+                       .col.s12.m8.offset-m2.l6.offset-l3.xl4.offset-xl4
+                               .card#form
+                                       form(@submit.prevent="submit")
+                                               .input-field
+                                                       input#email.validate(type="email", ref="userEmail", v-model="user.email", required)
+                                                       label(for="email") Email
+                                               .input-field(v-show="stage=='register'")
+                                                       input#forename.validate(type="text", v-model="user.forename", :required="stage=='register'")
+                                                       label(for="forename") Forename
+                                               .input-field(v-show="stage=='register'")
+                                                       input#name.validate(type="text", v-model="user.name", :required="stage=='register'")
+                                                       label(for="name") Name
+                                               #submit.center-align
+                                                       button#submit.waves-effect.waves-light.btn(@click.prevent="submit")
+                                                               span {{ messages[stage] }}
+                                                               i.material-icons.right send
+                                               #toggle.center-align
+                                                       span(v-show="stage!='login'", @click="toggleStage('login')") Login
+                                                       span(v-show="stage!='register'", @click="toggleStage('register')") Register
+                               .card#dialog.hide
+
+block javascripts
+       script(src="/javascripts/utils/dialog.js")
+       script(src="/javascripts/utils/validation.js")
+       script(src="/javascripts/login.js")

diff --git a/views/monitor.pug b/views/monitor.pug
new file mode 100644 (file)
index 0000000..e5dadfe
--- /dev/null
+++ b/views/monitor.pug
@@ -0,0 +1,12 @@
+extends withQuestions
+
+       //TODO: step 1: ask password (client side, store hash)
+       // step 2: when got hash, send request (with hash) to get monitoring page:
+       //   array with results + quiz details (displayed in another tab) + init socket (with hash too)
+       //   buttons "start quiz" and "stop quiz" for teacher only: trigger actions (impacting sockets)
+
+       body
+               p TODO
+
+block append javascripts
+       script. TODO

diff --git a/views/no-devtools.pug b/views/no-devtools.pug
new file mode 100644 (file)
index 0000000..bdc6021
--- /dev/null
+++ b/views/no-devtools.pug
@@ -0,0 +1,5 @@
+extends layout
+
+block content
+       p.warn Devtools is forbidden during an exam. Exit devtools and go back to exam page.
+       p.warn NOTE: if the exam was started already, then you cannot resume it :/

diff --git a/views/withQuestions.pug b/views/withQuestions.pug
new file mode 100644 (file)
index 0000000..e835911
--- /dev/null
+++ b/views/withQuestions.pug
@@ -0,0 +1,20 @@
+extends layout
+
+block stylesheets
+       link(href="/vendor/prism/prism.css" rel="stylesheet")
+
+block javascripts
+       script(src="/vendor/prism/prism.js")
+       script.
+               Prism.plugins.autoloader.languages_path = '/vendor/prism/components';
+       script(type="text/x-mathjax-config").
+               MathJax.Hub.Config({
+                       extensions: ["tex2jax.js"],
+                       jax: ["input/TeX", "output/SVG"],
+                       tex2jax: {
+                               inlineMath: [ ['$','$'] ],
+                               displayMath: [ ['$$','$$'] ],
+                               processEscapes: true
+                       },
+               });
+       script(src='//cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.2/MathJax.js')