routes/pages.js

   1 let router = require("express").Router();
   2 const access = require("../utils/access");
   3 const UserModel = require("../models/user");
   4 const AssessmentModel = require("../models/assessment");
   5 const CourseModel = require("../models/course");
   6
   7 // Actual pages (least specific last)
   8
   9 // List initials and count assessments
  10 router.get("/", (req,res) => {
  11     UserModel.getAll( (err,userArray) => {
  12         if (!!err)
  13             return res.json(err);
  14         res.render("index", {
  15             title: "home",
  16             userArray: userArray,
  17         });
  18     });
  19 });
  20
  21 // Login screen
  22 router.get("/login", access.unlogged, (req,res) => {
  23     res.render("login", {
  24         title: "login",
  25     });
  26 });
  27
  28 // Redirection screens when possible cheating attempt detected in exam
  29 router.get("/enablejs", (req,res) => {
  30     res.render("enablejs", {
  31         title: "JS disabled",
  32     });
  33 });
  34
  35 router.get("/fullscreen", (req,res) => {
  36     res.render("fullscreen", {
  37         title: "Not in fullscreen",
  38     });
  39 });
  40
  41 router.get("/noblur", (req,res) => {
  42     res.render("noblur", {
  43         title: "Lost focus",
  44     });
  45 });
  46
  47 // List courses of some user (should be [a-z]+[0-9]* but fails...)
  48 router.get("/:initials([a-z0-9]+)", (req,res) => {
  49     let initials = req.params["initials"];
  50     CourseModel.getByInitials(initials, (err,courseArray) => {
  51         if (!!err)
  52             return res.json(err);
  53         access.getUser(req, res, (err2,user) => {
  54             const isTeacher = !!user && user.initials == initials;
  55             // Strip students from courses if not course admin (TODO: not required in any case)
  56             if (!isTeacher)
  57             {
  58                 courseArray.forEach( c => {
  59                     delete c["students"];
  60                 });
  61             }
  62             res.render("course-list", {
  63                 title: initials + " courses",
  64                 courseArray: courseArray,
  65                 teacher: isTeacher,
  66                 initials: initials,
  67             });
  68         });
  69     });
  70 });
  71
  72 // Detailed content of one course
  73 router.get("/:initials([a-z0-9]+)/:courseCode([a-z0-9._-]+)", (req,res) => {
  74     let initials = req.params["initials"];
  75     let code = req.params["courseCode"];
  76     CourseModel.getByRefs(initials, code, (err,course) => {
  77         access.checkRequest(res, err, course, "Course not found", () => {
  78             AssessmentModel.getByCourse(course._id, (err2,assessmentArray) => {
  79                 if (!!err)
  80                     return res.json(err);
  81                 access.getUser(req, res, (err2,user) => {
  82                     const isTeacher = !!user && user.initials == initials;
  83                     // Strip students from course if not course admin
  84                     if (!isTeacher)
  85                         delete course["students"];
  86                     res.render("course", {
  87                         title: "course " + initials + "/" + code,
  88                         course: course,
  89                         assessmentArray: assessmentArray,
  90                         teacher: isTeacher,
  91                         initials: initials,
  92                     });
  93                 });
  94             });
  95         });
  96     });
  97 });
  98
  99 // Grading students answers: --> after identification (password), always send secret with requests
 100 router.get("/:initials([a-z0-9]+)/:courseCode([a-z0-9._-]+)/grade", (req,res) => {
 101     let initials = req.params["initials"];
 102     let code = req.params["courseCode"];
 103     // TODO: if (main) teacher, also send secret, saving one request
 104     res.render("grade", {
 105         title: "grade exams " + code + "/" + name,
 106         initials: initials,
 107         courseCode: code,
 108     });
 109 });
 110
 111 // Display assessment (exam or open status)
 112 router.get("/:initials([a-z0-9]+)/:courseCode([a-z0-9._-]+)/:assessmentName([a-z0-9._-]+)", (req,res) => {
 113     let initials = req.params["initials"];
 114     let code = req.params["courseCode"];
 115     let name = req.params["assessmentName"];
 116     AssessmentModel.getByRefs(initials, code, name, (err,assessment) => {
 117         access.checkRequest(res, err, assessment, "Assessment not found", () => {
 118             if (!assessment.active)
 119                 return res.json({errmsg: "Assessment is idle"});
 120             delete assessment["papers"]; //always remove recorded students answers
 121             if (assessment.mode == "exam")
 122             {
 123                 if (!!req.headers['user-agent'].match(/(SpecialAgent|HeadlessChrome|PhantomJS)/))
 124                 {
 125                     // Basic headless browser detection
 126                     return res.json({errmsg: "Headless browser detected"});
 127                 }
 128                 // Strip questions if exam mode (stepwise process)
 129                 delete assessment["questions"];
 130             }
 131             res.render("assessment", {
 132                 title: "assessment " + initials + "/" + code + "/" + name,
 133                 assessment: assessment,
 134             });
 135         });
 136     });
 137 });
 138
 139 // Monitor: --> after identification (password), always send secret with requests
 140 router.get("/:initials([a-z0-9]+)/:courseCode([a-z0-9._-]+)/:assessmentName([a-z0-9._-]+)/monitor", (req,res) => {
 141     let initials = req.params["initials"];
 142     let code = req.params["courseCode"];
 143     let name = req.params["assessmentName"];
 144     // TODO: if (main) teacher, also send secret, saving one request
 145     res.render("monitor", {
 146         title: "monitor assessment " + code + "/" + name,
 147         initials: initials,
 148         courseCode: code,
 149         examName: name,
 150     });
 151 });
 152
 153 module.exports = router;