3 // This file consists of the main webserver for FinalsClub.org
4 // and is split between a standard CRUD style webserver and
5 // a websocket based realtime webserver.
7 // A note on house keeping: Anything with XXX is marked
8 // as such because it should be looked at and possibly
9 // revamped or removed depending on circumstances.
12 var sys = require( 'sys' );
13 var os = require( 'os' );
14 var url = require( 'url' );
15 var express = require( 'express' );
16 var mongoStore = require( 'connect-mongo' );
17 var async = require( 'async' );
18 var db = require( './db.js' );
19 var mongoose = require( './models.js' ).mongoose;
20 var Mailer = require( './mailer.js' );
21 var hat = require('hat');
22 var connect = require( 'connect' );
23 var Session = connect.middleware.session.Session;
24 var parseCookie = connect.utils.parseCookie;
25 var Backchannel = require('./bc/backchannel');
29 // Used for initial testing
30 var log3 = function() {}
33 var app = module.exports = express.createServer();
35 // Load Mongoose Schemas
36 // The actual schemas are located in models.j
37 var User = mongoose.model( 'User' );
38 var School = mongoose.model( 'School' );
39 var Course = mongoose.model( 'Course' );
40 var Lecture = mongoose.model( 'Lecture' );
41 var Note = mongoose.model( 'Note' );
43 // More schemas used for legacy data
44 var ArchivedCourse = mongoose.model( 'ArchivedCourse' );
45 var ArchivedNote = mongoose.model( 'ArchivedNote' );
46 var ArchivedSubject = mongoose.model( 'ArchivedSubject' );
48 // XXX Not sure if necessary
49 var ObjectId = mongoose.SchemaTypes.ObjectId;
52 // Use the environment variable DEV_EMAIL for testing
53 var ADMIN_EMAIL = process.env.DEV_EMAIL || 'info@finalsclub.org';
55 // Set server hostname and port from environment variables,
57 // XXX Can be cleaned up
58 var serverHost = process.env.SERVER_HOST;
59 var serverPort = process.env.SERVER_PORT;
62 console.log( 'Using server hostname defined in environment: %s', serverHost );
64 serverHost = os.hostname();
65 console.log( 'No hostname defined, defaulting to os.hostname(): %s', serverHost );
68 // Express configuration depending on environment
69 // development is intended for developing locally or
70 // when not in production, otherwise production is used
71 // when the site will be run live for regular usage.
72 app.configure( 'development', function() {
73 // In development mode, all errors and stack traces will be
74 // dumped to the console and on page for easier troubleshooting
76 app.set( 'errorHandler', express.errorHandler( { dumpExceptions: true, showStack: true } ) );
78 // Set database connection information from environment
79 // variables otherwise use localhost.
80 app.set( 'dbHost', process.env.MONGO_HOST || 'localhost' );
81 app.set( 'dbUri', 'mongodb://' + app.set( 'dbHost' ) + '/fc' );
83 // Set Amazon access and secret keys from environment
84 // variables. These keys are intended to be secret, so
85 // are not included in the source code, but set on the server
87 app.set( 'awsAccessKey', process.env.AWS_ACCESS_KEY_ID );
88 app.set( 'awsSecretKey', process.env.AWS_SECRET_ACCESS_KEY );
90 // If a port wasn't set earlier, set to 3000
96 // Production configuration settings
97 app.configure( 'production', function() {
98 // At the moment we have errors outputting everything
99 // so if there are any issues it is easier to track down.
100 // Once the site is more stable it will be prudent to
101 // use less error tracing.
102 app.set( 'errorHandler', express.errorHandler( { dumpExceptions: true, showStack: true } ) );
104 // Disable view cache due to stale views.
105 // XXX Disable view caching temp
106 app.disable( 'view cache' )
108 // Against setting the database connection information
109 // XXX Can be cleaned up or combined
110 app.set( 'dbHost', process.env.MONGO_HOST || 'localhost' );
111 app.set( 'dbUri', 'mongodb://' + app.set( 'dbHost' ) + '/fc' );
113 // XXX Can be cleaned up or combined
114 app.set( 'awsAccessKey', process.env.AWS_ACCESS_KEY_ID );
115 app.set( 'awsSecretKey', process.env.AWS_SECRET_ACCESS_KEY );
117 // Set to port 80 if not set through environment variables
123 // General Express configuration settings
124 app.configure(function(){
125 // Views are rendered from public/index.html and main.js except for the pad that surrounds EPL and BC
126 // FIXME: make all views exist inside of public/index.html
127 // Views are housed in the views folder
128 app.set( 'views', __dirname + '/views' );
129 // All templates use jade for rendering
130 app.set( 'view engine', 'jade' );
132 // Bodyparser is required to handle form submissions
133 // without manually parsing them.
134 app.use( express.bodyParser() );
136 app.use( express.cookieParser() );
138 // Sessions are stored in mongodb which allows them
139 // to be persisted even between server restarts.
140 app.set( 'sessionStore', new mongoStore( {
142 'url' : app.set( 'dbUri' )
145 // This is where the actual Express session handler
146 // is defined, with a mongoStore being set as the
147 // session storage versus in memory storage that is
149 app.use( express.session( {
150 // A secret 'password' for encrypting and decrypting
152 // XXX Should be handled differently
153 'secret' : 'finalsclub',
154 // The max age of the cookies that is allowed
155 // 60 (seconds) * 60 (minutes) * 24 (hours) * 30 (days) * 1000 (milliseconds)
156 'maxAge' : new Date(Date.now() + (60 * 60 * 24 * 30 * 1000)),
157 'store' : app.set( 'sessionStore' )
160 // methodOverride is used to handle PUT and DELETE HTTP
161 // requests that otherwise aren't handled by default.
162 app.use( express.methodOverride() );
163 // Static files are loaded when no dynamic views match.
164 app.use( express.static( __dirname + '/public' ) );
166 // Sets the routers middleware to load after everything set
167 // before it, but before static files.
168 app.use( app.router );
170 app.use(express.logger({ format: ':method :url' }));
171 // This is the command to use the default express error logger/handler
172 app.use(express.errorHandler({ dumpExceptions: true }));
176 // Mailer functions and helpers
177 // These are helper functions that make for cleaner code.
179 // sendUserActivation is for when a user registers and
180 // first needs to activate their account to use it.
181 function sendUserActivation( user ) {
185 'subject' : 'Activate your FinalsClub.org Account',
187 // Templates are in the email folder and use ejs
188 'template' : 'userActivation',
189 // Locals are used inside ejs so dynamic information
190 // can be rendered properly.
193 'serverHost' : serverHost
197 // Email is sent here
198 mailer.send( message, function( err, result ) {
200 // XXX: Add route to resend this email
201 console.log( 'Error sending user activation email\nError Message: '+err.Message );
203 console.log( 'Successfully sent user activation email.' );
208 // sendUserWelcome is for when a user registers and
209 // a welcome email is sent.
210 function sendUserWelcome( user, school ) {
211 // If a user is not apart of a supported school, they are
212 // sent a different template than if they are apart of a
214 var template = school ? 'userWelcome' : 'userWelcomeNoSchool';
218 'subject' : 'Welcome to FinalsClub',
220 'template' : template,
223 'serverHost' : serverHost
227 mailer.send( message, function( err, result ) {
229 // XXX: Add route to resend this email
230 console.log( 'Error sending user welcome email\nError Message: '+err.Message );
232 console.log( 'Successfully sent user welcome email.' );
238 // These functions are used later in the routes to help
239 // load information and variables, as well as handle
240 // various instances like checking if a user is logged in
242 function loggedIn( req, res, next ) {
243 // If req.user is set, then pass on to the next function
244 // or else alert the user with an error message.
248 req.flash( 'error', 'You must be logged in to access that feature!' );
253 // This loads the user if logged in
254 function loadUser( req, res, next ) {
255 var sid = req.sessionID;
257 console.log( 'got request from session ID: %s', sid );
259 // Find a user based on their stored session id
260 User.findOne( { session : sid }, function( err, user ) {
265 // If a user is found then set req.user the contents of user
266 // and make sure req.user.loggedIn is true.
270 req.user.loggedIn = true;
272 log3( 'authenticated user: '+req.user._id+' / '+req.user.email+'');
274 // Check if a user is activated. If not, then redirec
275 // to the homepage and tell them to check their email
276 // for the activation email.
277 if( req.user.activated ) {
278 // Is the user's profile complete? If not, redirect to their profile
279 if( ! req.user.isComplete ) {
280 if( url.parse( req.url ).pathname != '/profile' ) {
281 req.flash( 'info', 'Your profile is incomplete. Please complete your profile to fully activate your account.' );
283 res.redirect( '/profile' );
291 req.flash( 'info', 'This account has not been activated. Check your email for the activation URL.' );
295 } else if('a'==='b'){
296 console.log('never. in. behrlin.');
298 // If no user record was found, then we store the requested
299 // path they intended to view and redirect them after they
300 // login if it is requred.
301 var path = url.parse( req.url ).pathname;
302 req.session.redirect = path;
304 // Set req.user to an empty object so it doesn't throw errors
305 // later on that it isn't defined.
315 // loadSchool is used to load a school by it's id
316 function loadSchool( req, res, next ) {
318 var schoolName = req.params.name;
319 console.log( 'loading a school by id' );
321 School.findOne({'name': schoolName}).run( function( err, school ) {
326 // If a school is found, the user is checked to see if they are
327 // authorized to see or interact with anything related to that
329 school.authorize( user, function( authorized ){
330 req.school.authorized = authorized;
334 // If no school is found, display an appropriate error.
335 sendJson(res, {status: 'not_found', message: 'Invalid school specified!'} );
340 function loadSchoolSlug( req, res, next ) {
342 var schoolSlug = req.params.slug;
344 console.log("loading a school by slug");
345 //console.log(schoolSlug);
347 School.findOne({ 'slug': schoolSlug }, function( err, school ) {
348 console.log( school );
352 // If a school is found, the user is checked to see if they are
353 // authorized to see or interact with anything related to that
356 //school.authorize( user, function( authorized ){
357 //req.school.authorized = authorized;
361 // If no school is found, display an appropriate error.
362 sendJson(res, {status: 'not_found', message: 'Invalid school specified!'} );
367 // loadSchool is used to load a course by it's id
368 function loadCourse( req, res, next ) {
370 var courseId = req.params.id;
372 Course.findById( courseId, function( err, course ) {
373 if( course && !course.deleted ) {
376 // If a course is found, the user is checked to see if they are
377 // authorized to see or interact with anything related to that
379 course.authorize( user, function( authorized ) {
380 req.course.authorized = authorized;
385 // If no course is found, display an appropriate error.
386 sendJson(res, {status: 'not_found', message: 'Invalid course specified!'} );
391 // loadLecture is used to load a lecture by it's id
392 function loadLecture( req, res, next ) {
394 var lectureId = req.params.id;
396 Lecture.findById( lectureId, function( err, lecture ) {
397 if( lecture && !lecture.deleted ) {
398 req.lecture = lecture;
400 // If a lecture is found, the user is checked to see if they are
401 // authorized to see or interact with anything related to that
403 lecture.authorize( user, function( authorized ) {
404 req.lecture.authorized = authorized;
409 // If no lecture is found, display an appropriate error.
410 sendJson(res, {status: 'not_found', message: 'Invalid lecture specified!'} );
415 // loadNote is used to load a note by it's id
416 // This is a lot more complicated than the above
417 // due to public/private handling of notes.
418 function loadNote( req, res, next ) {
419 var user = req.user ? req.user : false;
420 var noteId = req.params.id;
422 Note.findById( noteId, function( err, note ) {
423 // If a note is found, and user is set, check if
424 // user is authorized to interact with that note.
425 if( note && user && !note.deleted ) {
426 note.authorize( user, function( auth ) {
428 // If authorzied, then set req.note to be used later
432 } else if ( note.public ) {
433 // If not authorized, but the note is public, then
434 // designate the note read only (RO) and store req.note
440 // If the user is not authorized and the note is private
441 // then display and error.
442 sendJson(res, {status: 'error', message: 'You do not have permission to access that note.'} );
445 } else if ( note && note.public && !note.deleted ) {
446 // If note is found, but user is not set because they are not
447 // logged in, and the note is public, set the note to read only
448 // and store the note for later.
453 } else if ( note && !note.public && !note.deleted ) {
454 // If the note is found, but user is not logged in and the note is
455 // not public, then ask them to login to view the note. Once logged
456 // in they will be redirected to the note, at which time authorization
457 // handling will be put in effect above.
458 //req.session.redirect = '/note/' + note._id;
459 sendJson(res, {status: 'error', message: 'You must be logged in to view that note.'} );
462 sendJson(res, {status: 'error', message: 'Invalid note specified!'} );
467 function checkAjax( req, res, next ) {
471 res.sendfile( 'public/index.html' );
475 // Dynamic Helpers are loaded automatically into views
476 app.dynamicHelpers( {
477 // express-messages is for flash messages for easy
478 // errors and information display
479 'messages' : require( 'express-messages' ),
481 // By default the req object isn't sen't to views
482 // during rendering, this allows you to use the
483 // user object if available in views.
484 'user' : function( req, res ) {
488 // Same, this allows session to be available in views.
489 'session' : function( req, res ) {
494 function sendJson( res, obj ) {
495 res.header('Cache-Control', 'no-cache, no-store');
500 // The following are the main CRUD routes that are used
501 // to make up this web app.
506 app.get( '/', loadUser, function( req, res ) {
509 res.render( 'index' );
514 // Used to display all available schools and any courses
516 // Public with some private information
517 app.get( '/schools', checkAjax, loadUser, function( req, res ) {
518 sys.puts('loading schools');
519 console.log(req.user);
523 // Find all schools and sort by name
524 // XXX mongoose's documentation on sort is extremely poor, tread carefully
525 School.find( {} ).sort( 'name', '1' ).run( function( err, schools ) {
527 // If schools are found, loop through them gathering any courses that are
528 // associated with them and then render the page with that information.
529 var schools_todo = schools.length;
530 schools.map(function (school) {
531 Course.find( { 'school': school.id } ).run(function (err, courses) {
532 school.courses_length = courses.length
534 if (schools_todo <= 0) {
535 sendJson(res, { 'user': user.sanitized, 'schools': schools.map( function(s) {
539 description: s.description,
542 courses: s.courses_length
551 // If no schools have been found, display none
552 //res.render( 'schools', { 'schools' : [] } );
553 sendJson(res, { 'schools' : [] , 'user': user.sanitized });
558 app.get( '/school/:name', checkAjax, loadUser, loadSchool, function( req, res ) {
559 var school = req.school;
562 console.log( 'loading a school by school/:id now name' );
564 //school.authorize( user, function( authorized ) {
565 // This is used to display interface elements for those users
566 // that are are allowed to see th)m, for instance a 'New Course' button.
567 //var sanitizedSchool = school.sanitized;
568 var sanitizedSchool = {
571 description: school.description,
574 //sanitizedSchool.authorized = authorized;
575 // Find all courses for school by it's id and sort by name
576 Course.find( { 'school' : school._id } ).sort( 'name', '1' ).run( function( err, courses ) {
577 // If any courses are found, set them to the appropriate school, otherwise
580 if( courses.length > 0 ) {
581 courses = courses.filter(function(course) {
582 if (!course.deleted) return course;
583 }).map(function(course) {
584 return course.sanitized;
589 sanitizedSchool.courses = courses;
592 // This tells async (the module) that each iteration of forEach is
593 // done and will continue to call the rest until they have all been
594 // completed, at which time the last function below will be called.
595 sendJson(res, { 'school': sanitizedSchool, 'user': user.sanitized })
600 // FIXME: version of the same using school slugs instead of ids
601 // TODO: merge this with the :id funciton or depricate it
602 app.get( '/schoolslug/:slug', checkAjax, loadUser, loadSchoolSlug, function( req, res ) {
603 var school = req.school;
605 console.log( 'loading a schoolslug/:slug' );
607 school.authorize( user, function( authorized ) {
608 // This is used to display interface elements for those users
609 // that are are allowed to see th)m, for instance a 'New Course' button.
610 var sanitizedSchool = school.sanitized;
611 sanitizedSchool.authorized = authorized;
612 // Find all courses for school by it's id and sort by name
613 Course.find( { 'school' : school._id } ).sort( 'name', '1' ).run( function( err, courses ) {
614 // If any courses are found, set them to the appropriate school, otherwise
616 if( courses.length > 0 ) {
617 sanitizedSchool.courses = courses.filter(function(course) {
618 if (!course.deleted) return course;
619 }).map(function(course) {
620 return course.sanitized;
623 sanitizedSchool.courses = [];
625 // This tells async (the module) that each iteration of forEach is
626 // done and will continue to call the rest until they have all been
627 // completed, at which time the last function below will be called.
628 sendJson(res, { 'school': sanitizedSchool, 'user': user.sanitized })
634 // Recieves new course form
635 app.post( '/school/:id', checkAjax, loadUser, loadSchool, function( req, res ) {
636 var school = req.school;
637 // Creates new course from Course Schema
638 var course = new Course;
639 // Gathers instructor information from form
640 var instructorEmail = req.body.email.toLowerCase();
641 var instructorName = req.body.instructorName;
643 if( ( ! school ) || ( ! school.authorized ) ) {
644 return sendJson(res, {status: 'error', message: 'There was a problem trying to create a course'})
647 if ( !instructorName ) {
648 return sendJson(res, {status: 'error', message: 'Invalid parameters!'} )
651 if ( ( instructorEmail === '' ) || ( !isValidEmail( instructorEmail ) ) ) {
652 return sendJson(res, {status: 'error', message:'Please enter a valid email'} );
655 // Fill out the course with information from the form
656 course.number = req.body.number;
657 course.name = req.body.name;
658 course.description = req.body.description;
659 course.school = school._id;
660 course.creator = req.user._id;
661 course.subject = req.body.subject;
662 course.department = req.body.department;
664 // Check if a user exists with the instructorEmail, if not then create
665 // a new user and send them an instructor welcome email.
666 User.findOne( { 'email' : instructorEmail }, function( err, user ) {
670 user.name = instructorName
671 user.email = instructorEmail;
672 user.affil = 'Instructor';
673 user.school = school.name;
675 user.activated = false;
677 // Once the new user information has been completed, save the user
678 // to the database then email them the instructor welcome email.
679 user.save(function( err ) {
680 // If there was an error saving the instructor, prompt the user to fill out
681 // the information again.
683 return sendJson(res, {status: 'error', message: 'Invalid parameters!'} )
688 'subject' : 'A non-profit open education initiative',
690 'template' : 'instructorInvite',
695 'serverHost' : serverHost
699 mailer.send( message, function( err, result ) {
701 console.log( 'Error inviting instructor to course!' );
703 console.log( 'Successfully invited instructor to course.' );
707 // After emails are sent, set the courses instructor to the
708 // new users id and then save the course to the database.
709 course.instructor = user._id;
710 course.save( function( err ) {
712 return sendJson(res, {status: 'error', message: 'Invalid parameters!'} )
714 // Once the course has been completed email the admin with information
715 // on the course and new instructor
719 'subject' : school.name+' has a new course: '+course.name,
721 'template' : 'newCourse',
726 'serverHost' : serverHost
730 mailer.send( message, function( err, result ) {
732 console.log( 'Error sending new course email to info@finalsclub.org' )
734 console.log( 'Successfully invited instructor to course')
737 // Redirect the user to the schools page where they can see
739 // XXX Redirect to the new course instead
740 return sendJson(res, {status: 'ok', message: 'Course created'} )
746 // If the user exists, then check if they are already and instructor
747 if (user.affil === 'Instructor') {
748 // If they are an instructor, then save the course with the appropriate
749 // information and email the admin.
750 course.instructor = user._id;
751 course.save( function( err ) {
753 // XXX better validation
754 return sendJson(res, {status: 'error', message: 'Invalid parameters!'} )
759 'subject' : school.name+' has a new course: '+course.name,
761 'template' : 'newCourse',
766 'serverHost' : serverHost
770 mailer.send( message, function( err, result ) {
772 console.log( 'Error sending new course email to info@finalsclub.org' )
774 console.log( 'Successfully invited instructor to course')
777 // XXX Redirect to the new course instead
778 return sendJson(res, {status: 'ok', message: 'Course created'} )
782 // The existing user isn't an instructor, so the user is notified of the error
783 // and the course isn't created.
784 sendJson(res, {status: 'error', message: 'The existing user\'s email you entered is not an instructor'} )
790 // Individual Course Listing
791 // Public with private information
792 app.get( '/course/:id', checkAjax, loadUser, loadCourse, function( req, res ) {
793 var userId = req.user._id;
794 var course = req.course;
796 // Check if the user is subscribed to the course
797 // XXX Not currently used for anything
798 //var subscribed = course.subscribed( userId );
800 // Find lectures associated with this course and sort by name
801 Lecture.find( { 'course' : course._id } ).sort( 'name', '1' ).run( function( err, lectures ) {
802 // Get course instructor information using their id
803 User.findById( course.instructor, function( err, instructor ) {
804 // Render course and lectures
805 var sanitizedInstructor = instructor.sanitized;
806 var sanitizedCourse = course.sanitized;
807 if (!course.authorized) {
808 delete sanitizedInstructor.email;
810 sanitizedCourse.authorized = course.authorized;
812 sendJson(res, { 'course' : sanitizedCourse, 'instructor': sanitizedInstructor, 'lectures' : lectures.map(function(lecture) { return lecture.sanitized })} );
817 // Recieve New Lecture Form
818 app.post( '/course/:id', checkAjax, loadUser, loadCourse, function( req, res ) {
819 var course = req.course;
820 // Create new lecture from Lecture schema
821 var lecture = new Lecture;
823 if( ( ! course ) || ( ! course.authorized ) ) {
824 return sendJson(res, {status: 'error', message: 'There was a problem trying to create a lecture'})
827 // Populate lecture with form data
828 lecture.name = req.body.name;
829 lecture.date = req.body.date;
830 lecture.course = course._id;
831 lecture.creator = req.user._id;
833 // Save lecture to database
834 lecture.save( function( err ) {
836 // XXX better validation
837 sendJson(res, {status: 'error', message: 'Invalid parameters!'} );
839 sendJson(res, {status: 'ok', message: 'Created new lecture'} );
845 app.get( '/course/:id/edit', loadUser, loadCourse, function( req, res) {
846 var course = req.course;
850 res.render( 'course/new', {course: course} )
852 req.flash( 'error', 'You don\'t have permission to do that' )
853 res.redirect( '/schools' );
857 // Recieve Course Edit Form
858 app.post( '/course/:id/edit', loadUser, loadCourse, function( req, res ) {
859 var course = req.course;
863 var courseChanges = req.body;
864 course.number = courseChanges.number;
865 course.name = courseChanges.name;
866 course.description = courseChanges.description;
867 course.department = courseChanges.department;
869 course.save(function(err) {
871 req.flash( 'error', 'There was an error saving the course' );
873 res.redirect( '/course/'+ course._id.toString());
876 req.flash( 'error', 'You don\'t have permission to do that' )
877 res.redirect( '/schools' );
882 app.get( '/course/:id/delete', loadUser, loadCourse, function( req, res) {
883 var course = req.course;
887 course.delete(function( err ) {
888 if ( err ) req.flash( 'info', 'There was a problem removing course: ' + err )
889 else req.flash( 'info', 'Successfully removed course' )
890 res.redirect( '/schools' );
893 req.flash( 'error', 'You don\'t have permission to do that' )
894 res.redirect( '/schools' );
898 // Subscribe to course
899 // XXX Not currently used for anything
900 app.get( '/course/:id/subscribe', loadUser, loadCourse, function( req, res ) {
901 var course = req.course;
902 var userId = req.user._id;
904 course.subscribe( userId, function( err ) {
906 req.flash( 'error', 'Error subscribing to course!' );
909 res.redirect( '/course/' + course._id );
913 // Unsubscribe from course
914 // XXX Not currently used for anything
915 app.get( '/course/:id/unsubscribe', loadUser, loadCourse, function( req, res ) {
916 var course = req.course;
917 var userId = req.user._id;
919 course.unsubscribe( userId, function( err ) {
921 req.flash( 'error', 'Error unsubscribing from course!' );
924 res.redirect( '/course/' + course._id );
931 // Display individual lecture and related notes
932 app.get( '/lecture/:id', checkAjax, loadUser, loadLecture, function( req, res ) {
933 var lecture = req.lecture;
935 // Grab the associated course
936 // XXX this should be done with DBRefs eventually
937 Course.findById( lecture.course, function( err, course ) {
939 // If course is found, find instructor information to be displayed on page
940 User.findById( course.instructor, function( err, instructor ) {
941 // Pull out our notes
942 Note.find( { 'lecture' : lecture._id } ).sort( 'name', '1' ).run( function( err, notes ) {
943 if ( !req.user.loggedIn || !req.lecture.authorized ) {
944 // Loop through notes and only return those that are public if the
945 // user is not logged in or not authorized for that lecture
946 notes = notes.filter(function( note ) {
947 if ( note.public ) return note;
950 var sanitizedInstructor = instructor.sanitized;
951 var sanitizedLecture = lecture.sanitized;
952 if (!lecture.authorized) {
953 delete sanitizedInstructor.email;
955 sanitizedLecture.authorized = lecture.authorized;
958 'lecture' : sanitizedLecture,
959 'course' : course.sanitized,
960 'instructor' : sanitizedInstructor,
961 'notes' : notes.map(function(note) {
962 return note.sanitized;
968 sendJson(res, { status: 'not_found', msg: 'This course is orphaned' })
974 // Recieve new note form
975 app.post( '/lecture/:id', checkAjax, loadUser, loadLecture, function( req, res ) {
976 var lecture = req.lecture;
978 if( ( ! lecture ) || ( ! lecture.authorized ) ) {
979 return sendJson(res, {status: 'error', message: 'There was a problem trying to create a note pad'})
982 // Create note from Note schema
985 // Populate note from form data
986 note.name = req.body.name;
987 note.date = req.body.date;
988 note.lecture = lecture._id;
989 note.public = req.body.private ? false : true;
990 note.creator = req.user._id;
992 // Save note to database
993 note.save( function( err ) {
995 // XXX better validation
996 sendJson(res, {status: 'error', message: 'There was a problem trying to create a note pad'})
998 sendJson(res, {status: 'ok', message: 'Successfully created a new note pad'})
1004 // Display individual note page
1005 app.get( '/note/:id', /*checkAjax,*/ loadUser, loadNote, function( req, res ) {
1006 var note = req.note;
1007 // Set read only id for etherpad-lite or false for later check
1008 var roID = note.roID || false;
1010 var lectureId = note.lecture;
1012 // Count the amount of visits, but only once per session
1013 if ( req.session.visited ) {
1014 if ( req.session.visited.indexOf( note._id.toString() ) == -1 ) {
1015 req.session.visited.push( note._id );
1019 req.session.visited = [];
1020 req.session.visited.push( note._id );
1024 // If a read only id exists process note
1028 // If read only id doesn't, then fetch the read only id from the database and then
1030 // XXX Soon to be depracated due to a new API in etherpad that makes for a
1031 // much cleaner solution.
1032 db.open('mongodb://' + app.set( 'dbHost' ) + '/etherpad/etherpad', function( err, epl ) {
1033 epl.findOne( { key: 'pad2readonly:' + note._id }, function(err, record) {
1035 roID = record.value.replace(/"/g, '');
1044 function processReq() {
1046 Lecture.findById( lectureId, function( err, lecture ) {
1048 req.flash( 'error', 'That notes page is orphaned!' );
1050 res.redirect( '/' );
1052 // Find notes based on lecture id, which will be displayed in a dropdown
1054 Note.find( { 'lecture' : lecture._id }, function( err, otherNotes ) {
1057 'host' : serverHost,
1058 'note' : note.sanitized,
1059 'lecture' : lecture.sanitized,
1060 'otherNotes' : otherNotes.map(function(note) {
1061 return note.sanitized;
1068 // User is logged in and sees full notepad
1070 res.render( 'notes/index', {
1071 'layout' : 'noteLayout',
1072 'host' : serverHost,
1074 'lecture' : lecture,
1075 'otherNotes' : otherNotes,
1078 'stylesheets' : [ 'dropdown.css', 'fc2.css' ],
1079 'javascripts' : [ 'dropdown.js', 'counts.js', 'backchannel.js', 'jquery.tmpl.min.js' ]
1082 // User is not logged in and sees notepad that is public
1083 res.render( 'notes/public', {
1084 'layout' : 'noteLayout',
1085 'host' : serverHost,
1087 'otherNotes' : otherNotes,
1089 'lecture' : lecture,
1090 'stylesheets' : [ 'dropdown.css', 'fc2.css' ],
1091 'javascripts' : [ 'dropdown.js', 'counts.js', 'backchannel.js', 'jquery.tmpl.min.js' ]
1099 // Static pages and redirects
1101 app.get( '/about', loadUser, function( req, res ) {
1102 res.redirect( 'http://blog.finalsclub.org/about.html' );
1105 app.get( '/press', loadUser, function( req, res ) {
1106 res.render( 'static/press' );
1109 app.get( '/conduct', loadUser, function( req, res ) {
1110 res.render( 'static/conduct' );
1113 app.get( '/legal', loadUser, function( req, res ) {
1114 res.redirect( 'http://blog.finalsclub.org/legal.html' );
1117 app.get( '/contact', loadUser, function( req, res ) {
1118 res.redirect( 'http://blog.finalsclub.org/contact.html' );
1121 app.get( '/privacy', loadUser, function( req, res ) {
1122 res.render( 'static/privacy' );
1127 // Authentication routes
1128 // These are used for logging in, logging out, registering
1129 // and other user authentication purposes
1131 // Render login page
1133 app.get( '/login', function( req, res ) {
1134 log3("get login page")
1136 res.render( 'login' );
1140 app.get( '/checkuser', checkAjax, loadUser, function( req, res ) {
1141 sendJson(res, {user: req.user.sanitized});
1144 // Recieve login form
1145 app.post( '/login', checkAjax, function( req, res ) {
1146 var email = req.body.email;
1147 var password = req.body.password;
1148 log3("post login ...")
1150 // Find user from email
1151 User.findOne( { 'email' : email.toLowerCase() }, function( err, user ) {
1155 // If user exists, check if activated, if not notify them and send them to
1158 if( ! user.activated ) {
1159 // (undocumented) markdown-esque link functionality in req.flash
1160 req.session.activateCode = user._id;
1161 sendJson(res, {status: 'error', message: 'This account isn\'t activated.'} );
1164 // If user is activated, check if their password is correct
1165 if( user.authenticate( password ) ) {
1168 var sid = req.sessionID;
1172 // Set the session then save the user to the database
1173 user.save( function() {
1174 var redirect = req.session.redirect;
1176 // login complete, remember the user's email for next time
1177 req.session.email = email;
1179 // alert the successful login
1180 sendJson(res, {status: 'ok', message:'Successfully logged in!'} );
1182 // redirect to profile if we don't have a stashed request
1183 //res.redirect( redirect || '/profile' );
1186 // Notify user of bad login
1187 sendJson(res, {status: 'error', message: 'Invalid login!'} );
1189 //res.render( 'login' );
1193 // Notify user of bad login
1195 sendJson(res, {status: 'error', message: 'Invalid login!'} );
1197 //res.render( 'login' );
1202 // Recieve reset password request form
1203 app.post( '/resetpass', checkAjax, function( req, res ) {
1204 log3("post resetpw");
1205 var email = req.body.email
1209 User.findOne( { 'email' : email.toLowerCase() }, function( err, user ) {
1212 // If user exists, create reset code
1213 var resetPassCode = hat(64);
1214 user.setResetPassCode(resetPassCode);
1216 // Construct url that the user can then click to reset password
1217 var resetPassUrl = 'http://' + serverHost + ((app.address().port != 80)? ':'+app.address().port: '') + '/resetpw/' + resetPassCode;
1219 // Save user to database
1220 user.save( function( err ) {
1221 log3('save '+user.email);
1223 // Construct email and send it to the user
1227 'subject' : 'Your FinalsClub.org Password has been Reset!',
1229 'template' : 'userPasswordReset',
1231 'resetPassCode' : resetPassCode,
1232 'resetPassUrl' : resetPassUrl
1236 mailer.send( message, function( err, result ) {
1238 // XXX: Add route to resend this email
1240 console.log( 'Error sending user password reset email!' );
1242 console.log( 'Successfully sent user password reset email.' );
1247 // Render request success page
1248 sendJson(res, {status: 'ok', message: 'Your password has been reset. An email has been sent to ' + email })
1252 sendJson(res, {status: 'error', message: 'We were unable to reset the password using that email address. Please try again.' })
1257 // Recieve reset password form
1258 app.post( '/resetpw/:id', checkAjax, function( req, res ) {
1259 log3("post resetpw.code");
1260 var resetPassCode = req.params.id
1261 var email = req.body.email
1262 var pass1 = req.body.pass1
1263 var pass2 = req.body.pass2
1265 // Find user by email
1266 User.findOne( { 'email' : email.toLowerCase() }, function( err, user ) {
1268 // If user exists, and the resetPassCode is valid, pass1 and pass2 match, then
1269 // save user with new password and display success message.
1271 var valid = user.resetPassword(resetPassCode, pass1, pass2);
1273 user.save( function( err ) {
1274 sendJson(res, {status: 'ok', message: 'Your password has been reset. You can now login with your the new password you just created.'})
1278 // If there was a problem, notify user
1280 sendJson(res, {status: 'error', message: 'We were unable to reset the password. Please try again.' })
1285 // Display registration page
1287 app.get( '/register', function( req, res ) {
1288 log3("get reg page");
1290 // Populate school dropdown list
1291 School.find( {} ).sort( 'name', '1' ).run( function( err, schools ) {
1292 res.render( 'register', { 'schools' : schools } );
1297 // Recieve registration form
1298 app.post( '/register', checkAjax, function( req, res ) {
1299 var sid = req.sessionId;
1301 // Create new user from User schema
1302 var user = new User;
1304 // Populate user from form
1305 user.email = req.body.email.toLowerCase();
1306 user.password = req.body.password;
1308 // If school is set to other, then fill in school as what the user entered
1309 user.school = req.body.school === 'Other' ? req.body.otherSchool : req.body.school;
1310 user.name = req.body.name;
1311 user.affil = req.body.affil;
1312 user.activated = false;
1315 if ( ( user.email === '' ) || ( !isValidEmail( user.email ) ) ) {
1316 return sendJson(res, {status: 'error', message: 'Please enter a valid email'} );
1319 // Check if password is greater than 6 characters, otherwise notify user
1320 if ( req.body.password.length < 6 ) {
1321 return sendJson(res, {status: 'error', message: 'Please enter a password longer than eight characters'} );
1324 // Pull out hostname from email
1325 var hostname = user.email.split( '@' ).pop();
1327 // Check if email is from one of the special domains
1328 if( /^(finalsclub.org)$/.test( hostname ) ) {
1332 // Save user to database
1333 user.save( function( err ) {
1334 // If error, check if it is because the user already exists, if so
1335 // get the user information and let them know
1337 if( /dup key/.test( err.message ) ) {
1338 // attempting to register an existing address
1339 User.findOne({ 'email' : user.email }, function(err, result ) {
1340 if (result.activated) {
1341 // If activated, make sure they know how to contact the admin
1342 return sendJson(res, {status: 'error', message: 'There is already someone registered with this email, if this is in error contact info@finalsclub.org for help'} );
1344 // If not activated, direct them to the resendActivation page
1345 return sendJson(res, {status: 'error', message: 'There is already someone registered with this email, if this is you, please check your email for the activation code'} );
1349 // If any other type of error, prompt them to enter the registration again
1350 return sendJson(res, {status: 'error', message: 'An error occurred during registration.'} );
1353 // send user activation email
1354 sendUserActivation( user );
1356 // Check if the hostname matches any in the approved schools
1357 School.findOne( { 'hostnames' : hostname }, function( err, school ) {
1359 // If there is a match, send associated welcome message
1360 sendUserWelcome( user, true );
1361 log3('school recognized '+school.name);
1362 // If no users exist for the school, create empty array
1363 if (!school.users) school.users = [];
1364 // Add user to the school
1365 school.users.push( user._id );
1367 // Save school to the database
1368 school.save( function( err ) {
1369 log3('school.save() done');
1370 // Notify user that they have been added to the school
1371 sendJson(res, {status: 'ok', message: 'You have automatically been added to the ' + school.name + ' network. Please check your email for the activation link'} );
1373 // Construct admin email about user registration
1377 'subject' : 'FC User Registration : User added to ' + school.name,
1379 'template' : 'userSchool',
1385 // If there isn't a match, send associated welcome message
1386 sendUserWelcome( user, false );
1387 // Tell user to check for activation link
1388 sendJson(res, {status: 'ok', message: 'Your account has been created, please check your email for the activation link'} );
1389 // Construct admin email about user registration
1393 'subject' : 'FC User Registration : Email did not match any schools',
1395 'template' : 'userNoSchool',
1401 // Send email to admin
1402 mailer.send( message, function( err, result ) {
1405 console.log( 'Error sending user has no school email to admin\nError Message: '+err.Message );
1407 console.log( 'Successfully sent user has no school email to admin.' );
1417 // Display resendActivation request page
1418 app.get( '/resendActivation', function( req, res ) {
1419 var activateCode = req.session.activateCode;
1421 // Check if user exists by activateCode set in their session
1422 User.findById( activateCode, function( err, user ) {
1423 if( ( ! user ) || ( user.activated ) ) {
1424 res.redirect( '/' );
1426 // Send activation and redirect to login
1427 sendUserActivation( user );
1429 req.flash( 'info', 'Your activation code has been resent.' );
1431 res.redirect( '/login' );
1436 // Display activation page
1437 app.get( '/activate/:code', checkAjax, function( req, res ) {
1438 var code = req.params.code;
1440 // XXX could break this out into a middleware
1442 return sendJson(res, {status:'error', message: 'Invalid activation code!'} );
1445 // Find user by activation code
1446 User.findById( code, function( err, user ) {
1447 if( err || ! user ) {
1448 // If not found, notify user of invalid code
1449 sendJson(res, {status:'error', message:'Invalid activation code!'} );
1451 // If valid, then activate user
1452 user.activated = true;
1454 // Regenerate our session and log in as the new user
1455 req.session.regenerate( function() {
1456 user.session = req.sessionID;
1458 // Save user to database
1459 user.save( function( err ) {
1461 sendJson(res, {status: 'error', message: 'Unable to activate account.'} );
1463 sendJson(res, {status: 'info', message: 'Account successfully activated. Please complete your profile.'} );
1472 app.get( '/logout', checkAjax, function( req, res ) {
1473 sys.puts("logging out");
1474 var sid = req.sessionID;
1476 // Find user by session id
1477 User.findOne( { 'session' : sid }, function( err, user ) {
1479 // Empty out session id
1482 // Save user to database
1483 user.save( function( err ) {
1484 sendJson(res, {status: 'ok', message: 'Successfully logged out'});
1487 sendJson(res, {status: 'ok', message: ''});
1492 // Recieve profile edit page form
1493 app.post( '/profile', checkAjax, loadUser, loggedIn, function( req, res ) {
1494 var user = req.user;
1495 var fields = req.body;
1498 var wasComplete = user.isComplete;
1500 if( ! fields.name ) {
1501 return sendJson(res, {status: 'error', message: 'Please enter a valid name!'} );
1503 user.name = fields.name;
1506 if( [ 'Student', 'Teachers Assistant' ].indexOf( fields.affiliation ) == -1 ) {
1507 return sendJson(res, {status: 'error', message: 'Please select a valid affiliation!'} );
1509 user.affil = fields.affiliation;
1512 if( fields.existingPassword || fields.newPassword || fields.newPasswordConfirm ) {
1513 // changing password
1514 if( ( ! user.hashed ) || user.authenticate( fields.existingPassword ) ) {
1515 if( fields.newPassword === fields.newPasswordConfirm ) {
1516 // test password strength?
1518 user.password = fields.newPassword;
1520 return sendJson(res, {status: 'error', message: 'Mismatch in new password!'} );
1523 return sendJson(res, {status: 'error', message: 'Please supply your existing password.'} );
1527 user.major = fields.major;
1528 user.bio = fields.bio;
1530 user.showName = ( fields.showName ? true : false );
1532 user.save( function( err ) {
1534 sendJson(res, {status: 'error', message: 'Unable to save user profile!'} );
1536 if( ( user.isComplete ) && ( ! wasComplete ) ) {
1537 sendJson(res, {status: 'ok', message: 'Your account is now fully activated. Thank you for joining FinalsClub!'} );
1539 sendJson(res, {status:'ok', message:'Your profile was successfully updated!'} );
1548 function loadSubject( req, res, next ) {
1549 if( url.parse( req.url ).pathname.match(/subject/) ) {
1550 ArchivedSubject.findOne({id: req.params.id }, function(err, subject) {
1551 if ( err || !subject) {
1552 sendJson(res, {status: 'not_found', message: 'Subject with this ID does not exist'} )
1554 req.subject = subject;
1563 function loadOldCourse( req, res, next ) {
1564 if( url.parse( req.url ).pathname.match(/course/) ) {
1565 ArchivedCourse.findOne({id: req.params.id }, function(err, course) {
1566 if ( err || !course ) {
1567 sendJson(res, {status: 'not_found', message: 'Course with this ID does not exist'} )
1569 req.course = course;
1578 var featuredCourses = [
1579 {name: 'The Human Mind', 'id': 1563},
1580 {name: 'Justice', 'id': 797},
1581 {name: 'Protest Literature', 'id': 1681},
1582 {name: 'Animal Cognition', 'id': 681},
1583 {name: 'Positive Psychology', 'id': 1793},
1584 {name: 'Social Psychology', 'id': 660},
1585 {name: 'The Book from Gutenberg to the Internet', 'id': 1439},
1586 {name: 'Cyberspace in Court', 'id': 1446},
1587 {name: 'Nazi Cinema', 'id': 2586},
1588 {name: 'Media and the American Mind', 'id': 2583},
1589 {name: 'Social Thought in Modern America', 'id': 2585},
1590 {name: 'Major British Writers II', 'id': 869},
1591 {name: 'Civil Procedure', 'id': 2589},
1592 {name: 'Evidence', 'id': 2590},
1593 {name: 'Management of Industrial and Nonprofit Organizations', 'id': 2591},
1596 app.get( '/learn', loadUser, function( req, res ) {
1597 res.render( 'archive/learn', { 'courses' : featuredCourses } );
1600 app.get( '/learn/random', checkAjax, function( req, res ) {
1601 sendJson(res, {status: 'ok', data: '/archive/course/'+ featuredCourses[Math.floor(Math.random()*featuredCourses.length)].id });
1604 app.get( '/archive', checkAjax, loadUser, function( req, res ) {
1605 ArchivedSubject.find({}).sort( 'name', '1' ).run( function( err, subjects ) {
1606 if ( err || subjects.length === 0) {
1607 sendJson(res, {status: 'error', message: 'There was a problem gathering the archived courses, please try again later.'} );
1609 sendJson(res, { 'subjects' : subjects, 'user': req.user.sanitized } );
1614 app.get( '/archive/subject/:id', checkAjax, loadUser, loadSubject, function( req, res ) {
1615 ArchivedCourse.find({subject_id: req.params.id}).sort('name', '1').run(function(err, courses) {
1616 if ( err || courses.length === 0 ) {
1617 sendJson(res, {status: 'not_found', message: 'There are no archived courses'} );
1619 sendJson(res, { 'courses' : courses, 'subject': req.subject, 'user': req.user.sanitized } );
1624 app.get( '/archive/course/:id', checkAjax, loadUser, loadOldCourse, function( req, res ) {
1625 ArchivedNote.find({course_id: req.params.id}).sort('name', '1').run(function(err, notes) {
1626 if ( err || notes.length === 0) {
1627 sendJson(res, {status: 'not_found', message: 'There are no notes in this course'} );
1629 notes = notes.map(function(note) { return note.sanitized });
1630 sendJson(res, { 'notes': notes, 'course' : req.course, 'user': req.user.sanitized } );
1635 app.get( '/archive/note/:id', checkAjax, loadUser, function( req, res ) {
1636 console.log( "id="+req.params.id)
1637 ArchivedNote.findById(req.params.id, function(err, note) {
1638 if ( err || !note ) {
1639 sendJson(res, {status: 'not_found', message: 'This is not a valid id for a note'} );
1641 ArchivedCourse.findOne({id: note.course_id}, function(err, course) {
1642 if ( err || !course ) {
1643 sendJson(res, {status: 'not_found', message: 'There is no course for this note'} )
1645 sendJson(res, { 'layout' : 'notesLayout', 'note' : note, 'course': course, 'user': req.user.sanitized } );
1653 app.get( '*', function(req, res) {
1654 res.sendfile('public/index.html');
1659 // The finalsclub backchannel server uses socket.io to handle communication between the server and
1660 // the browser which facilitates near realtime interaction. This allows the user to post questions
1661 // and comments and other users to get those almost immediately after they are posted, without
1662 // reloading the page or pressing a button to refresh.
1664 // The server code itself is fairly simple, mainly taking incomming messages from client browsers,
1665 // saving the data to the database, and then sending it out to everyone else connected.
1668 // Posts - Posts are the main items in backchannel, useful for questions or discussion points
1669 // [[ example object needed with explanation E.G:
1671 Post: { postID: '999-1',
1673 userName: 'Bob Jones',
1674 userAffil: 'Instructor',
1675 body: 'This is the text content of the post.',
1676 comments: { {<commentObj>, <commentObj>, ...},
1678 votes: [ <userID>, <userID>, ...],
1679 reports: [ <userID>, <userID>, ...]
1681 Comment: { body: 'foo bar', userName: 'Bob Jones', userAffil: 'Instructor' }
1683 if anonymous: userName => 'Anonymous', userAffil => 'N/A'
1688 // Comments - Comments are replies to posts, for clarification or answering questions
1689 // [[ example object needed]]
1690 // Votes - Votes signifyg a users approval of a post
1691 // [[ example object needed]]
1692 // Flags - Flagging a post signifies that it is against the rules, 2 flags moves it to the bottomw
1693 // [[ example object needed]]
1697 // body - Main content of the post
1698 // userId - Not currently used, but would contain the users id that made the post
1699 // userName - Users name that made post
1700 // userAffil - Users affiliation to their school
1701 // public - Boolean which denotes if the post is public to everyone, or private to school users only
1702 // date - Date post was made, updates when any comments are made for the post
1703 // comments - An array of comments which contain a body, userName, and userAffil
1704 // votes - An array of user ids which are the users that voted
1705 // [[ example needed ]]
1706 // reports - An array of user ids which are the users that reported the post
1707 // [[ reports would be "this post is flagged as inappropriate"? ]]
1708 // [[ bruml: consistent terminology needed ]]
1710 // Posts and comments can be made anonymously. When a post is anonymous, the users info is stripped
1711 // from the post and the userName is set to Anonymous and the userAffil to N/A. This is to allow
1712 // users the ability to make posts or comments that they might not otherwise due to not wanting
1713 // the content of the post/comment to be attributed to them.
1715 // Each time a user connects to the server, it passes through authorization which checks for a cookie
1716 // that is set by Express. If a session exists and it is for a valid logged in user, then handshake.user
1717 // is set to the users data, otherwise it is set to false. handshake.user is used later on to check if a
1718 // user is logged in, and if so display information that otherwise might not be visible to them if they
1719 // aren't apart of a particular school.
1721 // After the authorization step, the client browser sends the lecture id which is rendered into the html
1722 // page on page load from Express. This is then used to assign a 'room' for the user which is grouped
1723 // by lecture. All posts are grouped by lecture, and only exist for that lecture. After the user is
1724 // grouped into a 'room', they are sent a payload of all existing posts for that lecture, which are then
1725 // rendered in the browser.
1727 // Everything else from this point on is handled in an event form and requires a user initiating it. The
1728 // events are as follows.
1731 // A user makes a new post. A payload of data containing the post and lecture id is sent to the server.
1732 // The server recieves the data, assembles a new post object for the database and then fills it with
1733 // the appropriate data. If a user selected for the post to be anonymous, the userName and userAffil are
1734 // replaced. If the user chose for the post to be private, then public will be set to false and it
1735 // will be filtered from being sent to users not logged into and not having access to the school. Once
1736 // the post has been created and saved into the database, it is sent to all connected users to that
1737 // particular lecture, unless it is private, than only logged in users will get it.
1740 // A user votes for a post. A payload of data containing the post id and lecture id are sent along with
1741 // the user id. A new vote is created by first fetching the parent post, then adding the user id to the
1742 // votes array, and then the post is subsequently saved back to the database and sent to all connected
1743 // users unless the post is private, which then it will be only sent to logged in users.
1746 // Similar to the vote event, reports are sent as a payload of a post id, lecture id, and user id, which
1747 // are then used to fetch the parent post, add the user id to the reports array, and then saved to the db.
1748 // Then the report is sent out to all connected users unless it is a private post, which will be only sent
1749 // to logged in users. On the client, once a post has more two (2) or more reports, it will be moved to the
1750 // bottom of the interface.
1753 // A user posts a comment to a post. A payload of data containing the post id, lecture id, comment body,
1754 // user name, and user affiliation are sent to the server, which are then used to find the parent post
1755 // and then a new comment object is assembled. When new comments are made, it updates the posts date
1756 // which allows the post to be sorted by date and the posts with the freshest comments would be pushed
1757 // to the top of the interface. The comment can be anonymous, which then will have the user
1758 // name and affiliation stripped before saving to the database. The comment then will be sent out to all
1759 // connected users unless the post is private, then only logged in users will recieve the comment.
1761 var io = require( 'socket.io' ).listen( app );
1763 var Post = mongoose.model( 'Post' );
1765 io.set('authorization', function ( handshake, next ) {
1766 var rawCookie = handshake.headers.cookie;
1768 handshake.cookie = parseCookie(rawCookie);
1769 handshake.sid = handshake.cookie['connect.sid'];
1771 if ( handshake.sid ) {
1772 app.set( 'sessionStore' ).get( handshake.sid, function( err, session ) {
1774 handshake.user = false;
1775 return next(null, true);
1777 // bake a new session object for full r/w
1778 handshake.session = new Session( handshake, session );
1780 User.findOne( { session : handshake.sid }, function( err, user ) {
1782 handshake.user = user;
1783 return next(null, true);
1785 handshake.user = false;
1786 return next(null, true);
1794 return next(null, true);
1798 var backchannel = new Backchannel(app, io.of('/backchannel'), {
1799 // TODO: if lecture belongs to course (find pinker's courseId) pass a 'no-answers' true/false
1800 subscribe: function(lecture, send) {
1801 Post.find({'lecture': lecture}, function(err, posts) {
1805 post: function(fillPost) {
1806 var post = new Post;
1807 fillPost(post, function(send) {
1808 post.save(function(err) {
1813 items: function(postId, addItem) {
1814 Post.findById(postId, function( err, post ) {
1815 addItem(post, function(send) {
1816 post.save(function(err) {
1831 .on( 'connection', function( socket ) {
1832 // pull out user/session information etc.
1833 var handshake = socket.handshake;
1834 var userID = handshake.user._id;
1841 socket.on( 'join', function( note ) {
1842 if (handshake.user === false) {
1844 // XXX: replace by addToSet (once it's implemented in mongoose)
1845 Note.findById( noteID, function( err, note ) {
1847 if( note.collaborators.indexOf( userID ) == -1 ) {
1848 note.collaborators.push( userID );
1856 socket.on( 'watch', function( l ) {
1857 var sendCounts = function() {
1860 Note.find( { '_id' : { '$in' : watched } }, function( err, notes ) {
1863 function( note, callback ) {
1865 var count = note.collaborators.length;
1871 socket.emit( 'counts', send );
1873 timer = setTimeout( sendCounts, 5000 );
1879 Note.find( { 'lecture' : l }, [ '_id' ], function( err, notes ) {
1880 notes.forEach( function( note ) {
1881 watched.push( note._id );
1888 socket.on( 'disconnect', function() {
1889 clearTimeout( timer );
1891 if (handshake.user === false) {
1892 // XXX: replace with $pull once it's available
1894 Note.findById( noteID, function( err, note ) {
1896 var index = note.collaborators.indexOf( userID );
1899 note.collaborators.splice( index, 1 );
1910 // Exception Catch-All
1912 process.on('uncaughtException', function (e) {
1913 console.log("!!!!!! UNCAUGHT EXCEPTION\n" + e.stack);
1919 // mongoose now exepects a mongo url
1920 mongoose.connect( 'mongodb://localhost/fc' ); // FIXME: make relative to hostname
1922 var mailer = new Mailer( app.set('awsAccessKey'), app.set('awsSecretKey') );
1924 app.listen( serverPort, function() {
1925 console.log( "Express server listening on port %d in %s mode", app.address().port, app.settings.env );
1927 // if run as root, downgrade to the owner of this file
1928 if (process.getuid() === 0) {
1929 require('fs').stat(__filename, function(err, stats) {
1930 if (err) { return console.log(err); }
1931 process.setuid(stats.uid);
1936 function isValidEmail(email) {
1937 var re = /[a-z0-9!#$%&'*+\/=?^_`{|}~-]+(?:\.[a-z0-9!#$%&'*+\/=?^_`{|}~-]+)*@(?:[a-z0-9](?:[a-z0-9-]*[a-z0-9])?\.)+[a-z0-9](?:[a-z0-9-]*[a-z0-9])?/;
1938 return email.match(re);