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');
28 // Used for initial testing
29 var log3 = function() {}
32 var app = module.exports = express.createServer();
34 // Load Mongoose Schemas
35 // The actual schemas are located in models.j
36 var User = mongoose.model( 'User' );
37 var School = mongoose.model( 'School' );
38 var Course = mongoose.model( 'Course' );
39 var Lecture = mongoose.model( 'Lecture' );
40 var Note = mongoose.model( 'Note' );
42 // More schemas used for legacy data
43 var ArchivedCourse = mongoose.model( 'ArchivedCourse' );
44 var ArchivedNote = mongoose.model( 'ArchivedNote' );
45 var ArchivedSubject = mongoose.model( 'ArchivedSubject' );
47 // XXX Not sure if necessary
48 var ObjectId = mongoose.SchemaTypes.ObjectId;
51 // Use the environment variable DEV_EMAIL for testing
52 var ADMIN_EMAIL = process.env.DEV_EMAIL || 'info@finalsclub.org';
54 // Set server hostname and port from environment variables,
56 // XXX Can be cleaned up
57 var serverHost = process.env.SERVER_HOST;
58 var serverPort = process.env.SERVER_PORT;
61 console.log( 'Using server hostname defined in environment: %s', serverHost );
63 serverHost = os.hostname();
64 console.log( 'No hostname defined, defaulting to os.hostname(): %s', serverHost );
67 // Express configuration depending on environment
68 // development is intended for developing locally or
69 // when not in production, otherwise production is used
70 // when the site will be run live for regular usage.
71 app.configure( 'development', function() {
72 // In development mode, all errors and stack traces will be
73 // dumped to the console and on page for easier troubleshooting
75 app.set( 'errorHandler', express.errorHandler( { dumpExceptions: true, showStack: true } ) );
77 // Set database connection information from environment
78 // variables otherwise use localhost.
79 app.set( 'dbHost', process.env.MONGO_HOST || 'localhost' );
80 app.set( 'dbUri', 'mongodb://' + app.set( 'dbHost' ) + '/fc' );
82 // Set Amazon access and secret keys from environment
83 // variables. These keys are intended to be secret, so
84 // are not included in the source code, but set on the server
86 app.set( 'awsAccessKey', process.env.AWS_ACCESS_KEY_ID );
87 app.set( 'awsSecretKey', process.env.AWS_SECRET_ACCESS_KEY );
89 // If a port wasn't set earlier, set to 3000
95 // Production configuration settings
96 app.configure( 'production', function() {
97 // At the moment we have errors outputting everything
98 // so if there are any issues it is easier to track down.
99 // Once the site is more stable it will be prudent to
100 // use less error tracing.
101 app.set( 'errorHandler', express.errorHandler( { dumpExceptions: true, showStack: true } ) );
103 // Disable view cache due to stale views.
104 // XXX Disable view caching temp
105 app.disable( 'view cache' )
107 // Against setting the database connection information
108 // XXX Can be cleaned up or combined
109 app.set( 'dbHost', process.env.MONGO_HOST || 'localhost' );
110 app.set( 'dbUri', 'mongodb://' + app.set( 'dbHost' ) + '/fc' );
112 // XXX Can be cleaned up or combined
113 app.set( 'awsAccessKey', process.env.AWS_ACCESS_KEY_ID );
114 app.set( 'awsSecretKey', process.env.AWS_SECRET_ACCESS_KEY );
116 // Set to port 80 if not set through environment variables
122 // General Express configuration settings
123 app.configure(function(){
124 // Views are housed in the views folder
125 app.set( 'views', __dirname + '/views' );
126 // All templates use jade for rendering
127 app.set( 'view engine', 'jade' );
128 // Bodyparser is required to handle form submissions
129 // without manually parsing them.
130 app.use( express.bodyParser() );
132 app.use( express.cookieParser() );
134 // Sessions are stored in mongodb which allows them
135 // to be persisted even between server restarts.
136 app.set( 'sessionStore', new mongoStore( {
137 'url' : app.set( 'dbUri' )
140 // This is where the actual Express session handler
141 // is defined, with a mongoStore being set as the
142 // session storage versus in memory storage that is
144 app.use( express.session( {
145 // A secret 'password' for encrypting and decrypting
147 // XXX Should be handled differently
148 'secret' : 'finalsclub',
149 // The max age of the cookies that is allowed
150 // 60 (seconds) * 60 (minutes) * 24 (hours) * 30 (days) * 1000 (milliseconds)
151 'maxAge' : new Date(Date.now() + (60 * 60 * 24 * 30 * 1000)),
152 'store' : app.set( 'sessionStore' )
155 // methodOverride is used to handle PUT and DELETE HTTP
156 // requests that otherwise aren't handled by default.
157 app.use( express.methodOverride() );
158 // Static files are loaded when no dynamic views match.
159 app.use( express.static( __dirname + '/public' ) );
160 // Sets the routers middleware to load after everything set
161 // before it, but before static files.
162 app.use( app.router );
164 app.use(express.logger({ format: ':method :url' }));
165 // This is the errorHandler set in configuration earlier
166 // being set to a variable to be used after all other
167 // middleware is loaded. Error handling should always
168 // come last or near the bottom.
169 var errorHandler = app.set( 'errorHandler' );
171 app.use( errorHandler );
175 // Mailer functions and helpers
176 // These are helper functions that make for cleaner code.
178 // sendUserActivation is for when a user registers and
179 // first needs to activate their account to use it.
180 function sendUserActivation( user ) {
184 'subject' : 'Activate your FinalsClub.org Account',
186 // Templates are in the email folder and use ejs
187 'template' : 'userActivation',
188 // Locals are used inside ejs so dynamic information
189 // can be rendered properly.
192 'serverHost' : serverHost
196 // Email is sent here
197 mailer.send( message, function( err, result ) {
199 // XXX: Add route to resend this email
200 console.log( 'Error sending user activation email\nError Message: '+err.Message );
202 console.log( 'Successfully sent user activation email.' );
207 // sendUserWelcome is for when a user registers and
208 // a welcome email is sent.
209 function sendUserWelcome( user, school ) {
210 // If a user is not apart of a supported school, they are
211 // sent a different template than if they are apart of a
213 var template = school ? 'userWelcome' : 'userWelcomeNoSchool';
217 'subject' : 'Welcome to FinalsClub',
219 'template' : template,
222 'serverHost' : serverHost
226 mailer.send( message, function( err, result ) {
228 // XXX: Add route to resend this email
229 console.log( 'Error sending user welcome email\nError Message: '+err.Message );
231 console.log( 'Successfully sent user welcome email.' );
237 // These functions are used later in the routes to help
238 // load information and variables, as well as handle
239 // various instances like checking if a user is logged in
241 function loggedIn( req, res, next ) {
242 // If req.user is set, then pass on to the next function
243 // or else alert the user with an error message.
247 req.flash( 'error', 'You must be logged in to access that feature!' );
252 // This loads the user if logged in
253 function loadUser( req, res, next ) {
254 var sid = req.sessionID;
256 console.log( 'got request from session ID: %s', sid );
258 // Find a user based on their stored session id
259 User.findOne( { session : sid }, function( err, user ) {
264 // If a user is found then set req.user the contents of user
265 // and make sure req.user.loggedIn is true.
269 req.user.loggedIn = true;
271 log3( 'authenticated user: '+req.user._id+' / '+req.user.email+'');
273 // Check if a user is activated. If not, then redirec
274 // to the homepage and tell them to check their email
275 // for the activation email.
276 if( req.user.activated ) {
277 // Is the user's profile complete? If not, redirect to their profile
278 if( ! req.user.isComplete ) {
279 if( url.parse( req.url ).pathname != '/profile' ) {
280 req.flash( 'info', 'Your profile is incomplete. Please complete your profile to fully activate your account.' );
282 res.redirect( '/profile' );
290 req.flash( 'info', 'This account has not been activated. Check your email for the activation URL.' );
295 // If no user record was found, then we store the requested
296 // path they intended to view and redirect them after they
297 // login if it is requred.
298 var path = url.parse( req.url ).pathname;
299 req.session.redirect = path;
301 // Set req.user to an empty object so it doesn't throw errors
302 // later on that it isn't defined.
312 // loadSchool is used to load a school by it's id
313 function loadSchool( req, res, next ) {
315 var schoolId = req.params.id;
317 School.findById( schoolId, function( err, school ) {
321 // If a school is found, the user is checked to see if they are
322 // authorized to see or interact with anything related to that
324 school.authorize( user, function( authorized ){
325 req.school.authorized = authorized;
329 // If no school is found, display an appropriate error.
330 res.json( {status: 'error', message: 'Invalid school specified!'} );
335 // loadSchool is used to load a course by it's id
336 function loadCourse( req, res, next ) {
338 var courseId = req.params.id;
340 Course.findById( courseId, function( err, course ) {
341 if( course && !course.deleted ) {
344 // If a course is found, the user is checked to see if they are
345 // authorized to see or interact with anything related to that
347 course.authorize( user, function( authorized ) {
348 req.course.authorized = authorized;
353 // If no course is found, display an appropriate error.
354 res.json( {status: 'error', message: 'Invalid course specified!'} );
359 // loadLecture is used to load a lecture by it's id
360 function loadLecture( req, res, next ) {
362 var lectureId = req.params.id;
364 Lecture.findById( lectureId, function( err, lecture ) {
365 if( lecture && !lecture.deleted ) {
366 req.lecture = lecture;
368 // If a lecture is found, the user is checked to see if they are
369 // authorized to see or interact with anything related to that
371 lecture.authorize( user, function( authorized ) {
372 req.lecture.authorized = authorized;
377 // If no lecture is found, display an appropriate error.
378 res.json( {status: 'error', message: 'Invalid lecture specified!'} );
383 // loadNote is used to load a note by it's id
384 // This is a lot more complicated than the above
385 // due to public/private handling of notes.
386 function loadNote( req, res, next ) {
387 var user = req.user ? req.user : false;
388 var noteId = req.params.id;
390 Note.findById( noteId, function( err, note ) {
391 // If a note is found, and user is set, check if
392 // user is authorized to interact with that note.
393 if( note && user && !note.deleted ) {
394 note.authorize( user, function( auth ) {
396 // If authorzied, then set req.note to be used later
400 } else if ( note.public ) {
401 // If not authorized, but the note is public, then
402 // designate the note read only (RO) and store req.note
408 // If the user is not authorized and the note is private
409 // then display and error.
410 res.json( {status: 'error', message: 'You do not have permission to access that note.'} );
413 } else if ( note && note.public && !note.deleted ) {
414 // If note is found, but user is not set because they are not
415 // logged in, and the note is public, set the note to read only
416 // and store the note for later.
421 } else if ( note && !note.public && !note.deleted ) {
422 // If the note is found, but user is not logged in and the note is
423 // not public, then ask them to login to view the note. Once logged
424 // in they will be redirected to the note, at which time authorization
425 // handling will be put in effect above.
426 //req.session.redirect = '/note/' + note._id;
427 res.json( {status: 'error', message: 'You must be logged in to view that note.'} );
430 res.json( {status: 'error', message: 'Invalid note specified!'} );
435 function checkAjax( req, res, next ) {
439 res.sendfile( 'public/index.html' );
443 // Dynamic Helpers are loaded automatically into views
444 app.dynamicHelpers( {
445 // express-messages is for flash messages for easy
446 // errors and information display
447 'messages' : require( 'express-messages' ),
449 // By default the req object isn't sen't to views
450 // during rendering, this allows you to use the
451 // user object if available in views.
452 'user' : function( req, res ) {
456 // Same, this allows session to be available in views.
457 'session' : function( req, res ) {
463 // The following are the main CRUD routes that are used
464 // to make up this web app.
469 app.get( '/', loadUser, function( req, res ) {
472 res.render( 'index' );
477 // Used to display all available schools and any courses
479 // Public with some private information
480 app.get( '/schools', checkAjax, loadUser, function( req, res ) {
484 // Find all schools and sort by name
485 // XXX mongoose's documentation on sort is extremely poor, tread carefully
486 School.find( {} ).sort( 'name', '1' ).run( function( err, schools ) {
488 // If schools are found, loop through them gathering any courses that are
489 // associated with them and then render the page with that information.
490 res.json({ 'user': user.sanitized, 'schools' : schools.map(function(school) {
491 return school.sanitized;
494 // If no schools have been found, display none
495 //res.render( 'schools', { 'schools' : [] } );
496 res.json({ 'schools' : [] , 'user': user.sanitized });
501 app.get( '/school/:id', checkAjax, loadUser, loadSchool, function( req, res ) {
502 var school = req.school;
505 school.authorize( user, function( authorized ) {
506 // This is used to display interface elements for those users
507 // that are are allowed to see th)m, for instance a 'New Course' button.
508 var sanitizedSchool = school.sanitized;
509 sanitizedSchool.authorized = authorized;
510 // Find all courses for school by it's id and sort by name
511 Course.find( { 'school' : school._id } ).sort( 'name', '1' ).run( function( err, courses ) {
512 // If any courses are found, set them to the appropriate school, otherwise
514 if( courses.length > 0 ) {
515 sanitizedSchool.courses = courses.filter(function(course) {
516 if (!course.deleted) return course;
517 }).map(function(course) {
518 return course.sanitized;
521 sanitizedSchool.courses = [];
523 // This tells async (the module) that each iteration of forEach is
524 // done and will continue to call the rest until they have all been
525 // completed, at which time the last function below will be called.
526 res.json({ 'school': sanitizedSchool, 'user': user.sanitized })
532 // Displays form to create new course
533 // Private, requires user to be authorized
534 app.get( '/:id/course/new', loadUser, loadSchool, function( req, res ) {
535 // Load school from middleware
536 var school = req.school;
538 // If school was not loaded for whatever reason, or the user is not authorized
539 // then redirect to the main schools page.
540 if( ( ! school ) || ( ! school.authorized ) ) {
541 return res.redirect( '/schools' );
544 // If they are authorized and the school exists, then render the page
545 res.render( 'course/new', { 'school': school } );
548 // Recieves new course form
549 app.post( '/:id/course/new', loadUser, loadSchool, function( req, res ) {
550 var school = req.school;
551 // Creates new course from Course Schema
552 var course = new Course;
553 // Gathers instructor information from form
554 var instructorEmail = req.body.email.toLowerCase();
555 var instructorName = req.body.instructorName;
557 // If school doesn't exist or user is not authorized redirect to main schools page
558 if( ( ! school ) || ( ! school.authorized ) ) {
559 res.redirect( '/schools' );
562 // If instructorEmail isn't set, or name isn't set, display error and re-render the page.
563 if ( !instructorEmail || !instructorName ) {
564 req.flash( 'error', 'Invalid parameters!' )
565 return res.render( 'course/new' );
568 // Fill out the course with information from the form
569 course.number = req.body.number;
570 course.name = req.body.name;
571 course.description = req.body.description;
572 course.school = school._id;
573 course.creator = req.user._id;
574 course.subject = req.body.subject;
575 course.department = req.body.department;
577 // Check if a user exists with the instructorEmail, if not then create
578 // a new user and send them an instructor welcome email.
579 User.findOne( { 'email' : instructorEmail }, function( err, user ) {
583 user.name = instructorName
584 user.email = instructorEmail;
585 user.affil = 'Instructor';
586 user.school = school.name;
588 user.activated = false;
590 // Validate instructorEmail
591 // XXX Probably could be done before checking db
592 if ( ( user.email === '' ) || ( !isValidEmail( user.email ) ) ) {
593 req.flash( 'error', 'Please enter a valid email' );
594 // XXX This needs to be fixed, this is not the proper flow
595 return res.redirect( '/register' );
597 // Once the new user information has been completed, save the user
598 // to the database then email them the instructor welcome email.
599 user.save(function( err ) {
600 // If there was an error saving the instructor, prompt the user to fill out
601 // the information again.
603 req.flash( 'error', 'Invalid parameters!' )
604 return res.render( 'course/new' );
609 'subject' : 'A non-profit open education initiative',
611 'template' : 'instructorInvite',
616 'serverHost' : serverHost
620 mailer.send( message, function( err, result ) {
622 console.log( 'Error inviting instructor to course!' );
624 console.log( 'Successfully invited instructor to course.' );
628 // After emails are sent, set the courses instructor to the
629 // new users id and then save the course to the database.
630 course.instructor = user._id;
631 course.save( function( err ) {
633 // XXX better validation
634 req.flash( 'error', 'Invalid parameters!' );
636 return res.render( 'course/new' );
638 // Once the course has been completed email the admin with information
639 // on the course and new instructor
643 'subject' : school.name+' has a new course: '+course.name,
645 'template' : 'newCourse',
650 'serverHost' : serverHost
654 mailer.send( message, function( err, result ) {
656 console.log( 'Error sending new course email to info@finalsclub.org' )
658 console.log( 'Successfully invited instructor to course')
661 // Redirect the user to the schools page where they can see
663 // XXX Redirect to the new course instead
664 res.redirect( '/schools' );
670 // If the user exists, then check if they are already and instructor
671 if (user.affil === 'Instructor') {
672 // If they are an instructor, then save the course with the appropriate
673 // information and email the admin.
674 course.instructor = user._id;
675 course.save( function( err ) {
677 // XXX better validation
678 req.flash( 'error', 'Invalid parameters!' );
680 return res.render( 'course/new' );
685 'subject' : school.name+' has a new course: '+course.name,
687 'template' : 'newCourse',
692 'serverHost' : serverHost
696 mailer.send( message, function( err, result ) {
698 console.log( 'Error sending new course email to info@finalsclub.org' )
700 console.log( 'Successfully invited instructor to course')
703 // XXX Redirect to the new course instead
704 res.redirect( '/schools' );
708 // The existing user isn't an instructor, so the user is notified of the error
709 // and the course isn't created.
710 req.flash( 'error', 'The existing user\'s email you entered is not an instructor' );
711 res.render( 'course/new' );
717 // Individual Course Listing
718 // Public with private information
719 app.get( '/course/:id', checkAjax, loadUser, loadCourse, function( req, res ) {
720 var userId = req.user._id;
721 var course = req.course;
723 // Check if the user is subscribed to the course
724 // XXX Not currently used for anything
725 var subscribed = course.subscribed( userId );
727 // Find lectures associated with this course and sort by name
728 Lecture.find( { 'course' : course._id } ).sort( 'name', '1' ).run( function( err, lectures ) {
729 // Get course instructor information using their id
730 User.findById( course.instructor, function( err, instructor ) {
731 // Render course and lectures
732 res.json( { 'user': req.user.sanitized, 'course' : course.sanitized, 'instructor': instructor.sanitized, 'subscribed' : subscribed, 'lectures' : lectures.map(function(lecture) { return lecture.sanitized })} );
738 app.get( '/course/:id/edit', loadUser, loadCourse, function( req, res) {
739 var course = req.course;
743 res.render( 'course/new', {course: course} )
745 req.flash( 'error', 'You don\'t have permission to do that' )
746 res.redirect( '/schools' );
750 // Recieve Course Edit Form
751 app.post( '/course/:id/edit', loadUser, loadCourse, function( req, res ) {
752 var course = req.course;
756 var courseChanges = req.body;
757 course.number = courseChanges.number;
758 course.name = courseChanges.name;
759 course.description = courseChanges.description;
760 course.department = courseChanges.department;
762 course.save(function(err) {
764 req.flash( 'error', 'There was an error saving the course' );
766 res.redirect( '/course/'+ course._id.toString());
769 req.flash( 'error', 'You don\'t have permission to do that' )
770 res.redirect( '/schools' );
775 app.get( '/course/:id/delete', loadUser, loadCourse, function( req, res) {
776 var course = req.course;
780 course.delete(function( err ) {
781 if ( err ) req.flash( 'info', 'There was a problem removing course: ' + err )
782 else req.flash( 'info', 'Successfully removed course' )
783 res.redirect( '/schools' );
786 req.flash( 'error', 'You don\'t have permission to do that' )
787 res.redirect( '/schools' );
791 // Subscribe to course
792 // XXX Not currently used for anything
793 app.get( '/course/:id/subscribe', loadUser, loadCourse, function( req, res ) {
794 var course = req.course;
795 var userId = req.user._id;
797 course.subscribe( userId, function( err ) {
799 req.flash( 'error', 'Error subscribing to course!' );
802 res.redirect( '/course/' + course._id );
806 // Unsubscribe from course
807 // XXX Not currently used for anything
808 app.get( '/course/:id/unsubscribe', loadUser, loadCourse, function( req, res ) {
809 var course = req.course;
810 var userId = req.user._id;
812 course.unsubscribe( userId, function( err ) {
814 req.flash( 'error', 'Error unsubscribing from course!' );
817 res.redirect( '/course/' + course._id );
821 // Create new lecture
822 app.get( '/course/:id/lecture/new', loadUser, loadCourse, function( req, res ) {
823 var courseId = req.params.id;
824 var course = req.course;
827 // If course isn't valid or user isn't authorized for course, redirect
828 if( ( ! course ) || ( ! course.authorized ) ) {
829 return res.redirect( '/course/' + courseId );
832 // Render new lecture form
833 res.render( 'lecture/new', { 'lecture' : lecture } );
836 // Recieve New Lecture Form
837 app.post( '/course/:id/lecture/new', loadUser, loadCourse, function( req, res ) {
838 var courseId = req.params.id;
839 var course = req.course;
840 // Create new lecture from Lecture schema
841 var lecture = new Lecture;
843 if( ( ! course ) || ( ! course.authorized ) ) {
844 res.redirect( '/course/' + courseId );
849 // Populate lecture with form data
850 lecture.name = req.body.name;
851 lecture.date = req.body.date;
852 lecture.course = course._id;
853 lecture.creator = req.user._id;
855 // Save lecture to database
856 lecture.save( function( err ) {
858 // XXX better validation
859 req.flash( 'error', 'Invalid parameters!' );
861 res.render( 'lecture/new', { 'lecture' : lecture } );
863 // XXX Redirect to new lecture instead
864 res.redirect( '/course/' + course._id );
870 // Display individual lecture and related notes
871 app.get( '/lecture/:id', checkAjax, loadUser, loadLecture, function( req, res ) {
872 var lecture = req.lecture;
874 // Grab the associated course
875 // XXX this should be done with DBRefs eventually
876 Course.findById( lecture.course, function( err, course ) {
878 // If course is found, find instructor information to be displayed on page
879 User.findById( course.instructor, function( err, instructor ) {
880 // Pull out our notes
881 Note.find( { 'lecture' : lecture._id } ).sort( 'name', '1' ).run( function( err, notes ) {
882 if ( !req.user.loggedIn || !req.lecture.authorized ) {
883 // Loop through notes and only return those that are public if the
884 // user is not logged in or not authorized for that lecture
885 notes = notes.filter(function( note ) {
886 if ( note.public ) return note;
890 'lecture' : lecture.sanitized,
891 'course' : course.sanitized,
892 'instructor' : instructor.sanitized,
893 'user' : req.user.sanitized,
894 'notes' : notes.map(function(note) {
895 return note.sanitized;
901 res.json( { status: 'error', msg: 'This course is orphaned' })
906 // Display new note form
907 app.get( '/lecture/:id/notes/new', loadUser, loadLecture, function( req, res ) {
908 var lectureId = req.params.id;
909 var lecture = req.lecture;
912 if( ( ! lecture ) || ( ! lecture.authorized ) ) {
913 res.redirect( '/lecture/' + lectureId );
918 res.render( 'notes/new', { 'note' : note } );
921 // Recieve new note form
922 app.post( '/lecture/:id/notes/new', loadUser, loadLecture, function( req, res ) {
923 var lectureId = req.params.id;
924 var lecture = req.lecture;
926 if( ( ! lecture ) || ( ! lecture.authorized ) ) {
927 res.redirect( '/lecture/' + lectureId );
932 // Create note from Note schema
935 // Populate note from form data
936 note.name = req.body.name;
937 note.date = req.body.date;
938 note.lecture = lecture._id;
939 note.public = req.body.private ? false : true;
940 note.creator = req.user._id;
942 // Save note to database
943 note.save( function( err ) {
945 // XXX better validation
946 req.flash( 'error', 'Invalid parameters!' );
948 res.render( 'notes/new', { 'note' : note } );
950 // XXX Redirect to new note instead
951 res.redirect( '/lecture/' + lecture._id );
957 // Display individual note page
958 app.get( '/note/:id', /*checkAjax,*/ loadUser, loadNote, function( req, res ) {
960 // Set read only id for etherpad-lite or false for later check
961 var roID = note.roID || false;
963 var lectureId = note.lecture;
965 // Count the amount of visits, but only once per session
966 if ( req.session.visited ) {
967 if ( req.session.visited.indexOf( note._id.toString() ) == -1 ) {
968 req.session.visited.push( note._id );
972 req.session.visited = [];
973 req.session.visited.push( note._id );
977 // If a read only id exists process note
981 // If read only id doesn't, then fetch the read only id from the database and then
983 // XXX Soon to be depracated due to a new API in etherpad that makes for a
984 // much cleaner solution.
985 db.open('mongodb://' + app.set( 'dbHost' ) + '/etherpad/etherpad', function( err, epl ) {
986 epl.findOne( { key: 'pad2readonly:' + note._id }, function(err, record) {
988 roID = record.value.replace(/"/g, '');
997 function processReq() {
999 Lecture.findById( lectureId, function( err, lecture ) {
1001 req.flash( 'error', 'That notes page is orphaned!' );
1003 res.redirect( '/' );
1005 // Find notes based on lecture id, which will be displayed in a dropdown
1007 Note.find( { 'lecture' : lecture._id }, function( err, otherNotes ) {
1010 'host' : serverHost,
1011 'note' : note.sanitized,
1012 'lecture' : lecture.sanitized,
1013 'otherNotes' : otherNotes.map(function(note) {
1014 return note.sanitized;
1021 // User is logged in and sees full notepad
1023 res.render( 'notes/index', {
1024 'layout' : 'noteLayout',
1025 'host' : serverHost,
1027 'lecture' : lecture,
1028 'otherNotes' : otherNotes,
1031 'stylesheets' : [ 'dropdown.css', 'fc2.css' ],
1032 'javascripts' : [ 'dropdown.js', 'counts.js', 'backchannel.js', 'jquery.tmpl.min.js' ]
1035 // User is not logged in and sees notepad that is public
1036 res.render( 'notes/public', {
1037 'layout' : 'noteLayout',
1038 'host' : serverHost,
1040 'otherNotes' : otherNotes,
1042 'lecture' : lecture,
1043 'stylesheets' : [ 'dropdown.css', 'fc2.css' ],
1044 'javascripts' : [ 'dropdown.js', 'counts.js', 'backchannel.js', 'jquery.tmpl.min.js' ]
1052 // Static pages and redirects
1053 app.get( '/about', loadUser, function( req, res ) {
1054 res.redirect( 'http://blog.finalsclub.org/about.html' );
1057 app.get( '/press', loadUser, function( req, res ) {
1058 res.render( 'static/press' );
1061 app.get( '/conduct', loadUser, function( req, res ) {
1062 res.render( 'static/conduct' );
1065 app.get( '/legal', loadUser, function( req, res ) {
1066 res.redirect( 'http://blog.finalsclub.org/legal.html' );
1069 app.get( '/contact', loadUser, function( req, res ) {
1070 res.redirect( 'http://blog.finalsclub.org/contact.html' );
1073 app.get( '/privacy', loadUser, function( req, res ) {
1074 res.render( 'static/privacy' );
1078 // Authentication routes
1079 // These are used for logging in, logging out, registering
1080 // and other user authentication purposes
1082 // Render login page
1083 app.get( '/login', function( req, res ) {
1084 log3("get login page")
1086 res.render( 'login' );
1089 // Recieve login form
1090 app.post( '/login', function( req, res ) {
1091 var email = req.body.email;
1092 var password = req.body.password;
1093 log3("post login ...")
1095 // Find user from email
1096 User.findOne( { 'email' : email.toLowerCase() }, function( err, user ) {
1100 // If user exists, check if activated, if not notify them and send them to
1103 if( ! user.activated ) {
1104 // (undocumented) markdown-esque link functionality in req.flash
1105 req.flash( 'error', 'This account isn\'t activated. Check your inbox or [click here](/resendActivation) to resend the activation email.' );
1107 req.session.activateCode = user._id;
1109 res.render( 'login' );
1111 // If user is activated, check if their password is correct
1112 if( user.authenticate( password ) ) {
1115 var sid = req.sessionID;
1119 // Set the session then save the user to the database
1120 user.save( function() {
1121 var redirect = req.session.redirect;
1123 // login complete, remember the user's email for next time
1124 req.session.email = email;
1126 // alert the successful login
1127 req.flash( 'info', 'Successfully logged in!' );
1129 // redirect to profile if we don't have a stashed request
1130 res.redirect( redirect || '/profile' );
1133 // Notify user of bad login
1134 req.flash( 'error', 'Invalid login!' );
1136 res.render( 'login' );
1140 // Notify user of bad login
1142 req.flash( 'error', 'Invalid login!' );
1144 res.render( 'login' );
1149 // Request reset password
1150 app.get( '/resetpw', function( req, res ) {
1151 log3("get resetpw page");
1152 res.render( 'resetpw' );
1155 // Display reset password from requested email
1156 app.get( '/resetpw/:id', function( req, res ) {
1157 var resetPassCode = req.params.id
1158 res.render( 'resetpw', { 'verify': true, 'resetPassCode' : resetPassCode } );
1161 // Recieve reset password request form
1162 app.post( '/resetpw', function( req, res ) {
1163 log3("post resetpw");
1164 var email = req.body.email
1168 User.findOne( { 'email' : email.toLowerCase() }, function( err, user ) {
1171 // If user exists, create reset code
1172 var resetPassCode = hat(64);
1173 user.setResetPassCode(resetPassCode);
1175 // Construct url that the user can then click to reset password
1176 var resetPassUrl = 'http://' + serverHost + ((app.address().port != 80)? ':'+app.address().port: '') + '/resetpw/' + resetPassCode;
1178 // Save user to database
1179 user.save( function( err ) {
1180 log3('save '+user.email);
1182 // Construct email and send it to the user
1186 'subject' : 'Your FinalsClub.org Password has been Reset!',
1188 'template' : 'userPasswordReset',
1190 'resetPassCode' : resetPassCode,
1191 'resetPassUrl' : resetPassUrl
1195 mailer.send( message, function( err, result ) {
1197 // XXX: Add route to resend this email
1199 console.log( 'Error sending user password reset email!' );
1201 console.log( 'Successfully sent user password reset email.' );
1206 // Render request success page
1207 res.render( 'resetpw-success', { 'email' : email } );
1211 res.render( 'resetpw-error', { 'email' : email } );
1216 // Recieve reset password form
1217 app.post( '/resetpw/:id', function( req, res ) {
1218 log3("post resetpw.code");
1219 var resetPassCode = req.params.id
1220 var email = req.body.email
1221 var pass1 = req.body.pass1
1222 var pass2 = req.body.pass2
1224 // Find user by email
1225 User.findOne( { 'email' : email.toLowerCase() }, function( err, user ) {
1227 // If user exists, and the resetPassCode is valid, pass1 and pass2 match, then
1228 // save user with new password and display success message.
1230 var valid = user.resetPassword(resetPassCode, pass1, pass2);
1232 user.save( function( err ) {
1233 res.render( 'resetpw-success', { 'verify' : true, 'email' : email, 'resetPassCode' : resetPassCode } );
1238 // If there was a problem, notify user
1240 res.render( 'resetpw-error', { 'verify' : true, 'email' : email } );
1245 // Display registration page
1246 app.get( '/register', function( req, res ) {
1247 log3("get reg page");
1249 // Populate school dropdown list
1250 School.find( {} ).sort( 'name', '1' ).run( function( err, schools ) {
1251 res.render( 'register', { 'schools' : schools } );
1255 // Recieve registration form
1256 app.post( '/register', function( req, res ) {
1257 var sid = req.sessionId;
1259 // Create new user from User schema
1260 var user = new User;
1262 // Populate user from form
1263 user.email = req.body.email.toLowerCase();
1264 user.password = req.body.password;
1266 // If school is set to other, then fill in school as what the
1268 user.school = req.body.school === 'Other' ? req.body.otherSchool : req.body.school;
1269 user.name = req.body.name;
1270 user.affil = req.body.affil;
1271 user.activated = false;
1274 if ( ( user.email === '' ) || ( !isValidEmail( user.email ) ) ) {
1275 req.flash( 'error', 'Please enter a valid email' );
1276 return res.redirect( '/register' );
1279 // Check if password is greater than 6 characters, otherwise notify user
1280 if ( req.body.password.length < 6 ) {
1281 req.flash( 'error', 'Please enter a password longer than eight characters' );
1282 return res.redirect( '/register' );
1285 // Pull out hostname from email
1286 var hostname = user.email.split( '@' ).pop();
1288 // Check if email is from one of the special domains
1289 if( /^(finalsclub.org|sleepless.com)$/.test( hostname ) ) {
1293 // Save user to database
1294 user.save( function( err ) {
1295 // If error, check if it is because the user already exists, if so
1296 // get the user information and let them know
1298 if( /dup key/.test( err.message ) ) {
1299 // attempting to register an existing address
1300 User.findOne({ 'email' : user.email }, function(err, result ) {
1301 if (result.activated) {
1302 // If activated, make sure they know how to contact the admin
1303 req.flash( 'error', 'There is already someone registered with this email, if this is in error contact info@finalsclub.org for help' )
1304 return res.redirect( '/register' )
1306 // If not activated, direct them to the resendActivation page
1307 req.flash( 'error', 'There is already someone registered with this email, if this is you, please check your email for the activation code' )
1308 return res.redirect( '/resendActivation' )
1312 // If any other type of error, prompt them to enter the registration again
1313 req.flash( 'error', 'An error occurred during registration.' );
1315 return res.redirect( '/register' );
1318 // send user activation email
1319 sendUserActivation( user );
1321 // Check if the hostname matches any in the approved schools
1322 School.findOne( { 'hostnames' : hostname }, function( err, school ) {
1324 // If there is a match, send associated welcome message
1325 sendUserWelcome( user, true );
1326 log3('school recognized '+school.name);
1327 // If no users exist for the school, create empty array
1328 if (!school.users) school.users = [];
1329 // Add user to the school
1330 school.users.push( user._id );
1332 // Save school to the database
1333 school.save( function( err ) {
1334 log3('school.save() done');
1335 // Notify user that they have been added to the school
1336 req.flash( 'info', 'You have automatically been added to the ' + school.name + ' network. Please check your email for the activation link' );
1337 res.redirect( '/' );
1339 // Construct admin email about user registration
1343 'subject' : 'FC User Registration : User added to ' + school.name,
1345 'template' : 'userSchool',
1351 // If there isn't a match, send associated welcome message
1352 sendUserWelcome( user, false );
1353 // Tell user to check for activation link
1354 req.flash( 'info', 'Your account has been created, please check your email for the activation link' )
1355 res.redirect( '/' );
1356 // Construct admin email about user registration
1360 'subject' : 'FC User Registration : Email did not match any schools',
1362 'template' : 'userNoSchool',
1368 // Send email to admin
1369 mailer.send( message, function( err, result ) {
1372 console.log( 'Error sending user has no school email to admin\nError Message: '+err.Message );
1374 console.log( 'Successfully sent user has no school email to admin.' );
1384 // Display resendActivation request page
1385 app.get( '/resendActivation', function( req, res ) {
1386 var activateCode = req.session.activateCode;
1388 // Check if user exists by activateCode set in their session
1389 User.findById( activateCode, function( err, user ) {
1390 if( ( ! user ) || ( user.activated ) ) {
1391 res.redirect( '/' );
1393 // Send activation and redirect to login
1394 sendUserActivation( user );
1396 req.flash( 'info', 'Your activation code has been resent.' );
1398 res.redirect( '/login' );
1403 // Display activation page
1404 app.get( '/activate/:code', function( req, res ) {
1405 var code = req.params.code;
1407 // XXX could break this out into a middleware
1409 res.redirect( '/' );
1412 // Find user by activation code
1413 User.findById( code, function( err, user ) {
1414 if( err || ! user ) {
1415 // If not found, notify user of invalid code
1416 req.flash( 'error', 'Invalid activation code!' );
1418 res.redirect( '/' );
1420 // If valid, then activate user
1421 user.activated = true;
1423 // Regenerate our session and log in as the new user
1424 req.session.regenerate( function() {
1425 user.session = req.sessionID;
1427 // Save user to database
1428 user.save( function( err ) {
1430 req.flash( 'error', 'Unable to activate account.' );
1432 res.redirect( '/' );
1434 req.flash( 'info', 'Account successfully activated. Please complete your profile.' );
1436 res.redirect( '/profile' );
1445 app.get( '/logout', function( req, res ) {
1446 var sid = req.sessionID;
1448 // Find user by session id
1449 User.findOne( { 'session' : sid }, function( err, user ) {
1451 // Empty out session id
1454 // Save user to database
1455 user.save( function( err ) {
1456 res.redirect( '/' );
1459 res.redirect( '/' );
1464 // Display users profile page
1465 app.get( '/profile', loadUser, loggedIn, function( req, res ) {
1466 var user = req.user;
1468 res.render( 'profile/index', { 'user' : user } );
1471 // Recieve profile edit page form
1472 app.post( '/profile', loadUser, loggedIn, function( req, res ) {
1473 var user = req.user;
1474 var fields = req.body;
1477 var wasComplete = user.isComplete;
1479 if( ! fields.name ) {
1480 req.flash( 'error', 'Please enter a valid name!' );
1484 user.name = fields.name;
1487 if( [ 'Student', 'Teachers Assistant' ].indexOf( fields.affiliation ) == -1 ) {
1488 req.flash( 'error', 'Please select a valid affiliation!' );
1492 user.affil = fields.affiliation;
1495 if( fields.existingPassword || fields.newPassword || fields.newPasswordConfirm ) {
1496 // changing password
1497 if( ( ! user.hashed ) || user.authenticate( fields.existingPassword ) ) {
1498 if( fields.newPassword === fields.newPasswordConfirm ) {
1499 // test password strength?
1501 user.password = fields.newPassword;
1503 req.flash( 'error', 'Mismatch in new password!' );
1508 req.flash( 'error', 'Please supply your existing password.' );
1514 user.major = fields.major;
1515 user.bio = fields.bio;
1517 user.showName = ( fields.showName ? true : false );
1520 user.save( function( err ) {
1522 req.flash( 'error', 'Unable to save user profile!' );
1524 if( ( user.isComplete ) && ( ! wasComplete ) ) {
1525 req.flash( 'info', 'Your account is now fully activated. Thank you for joining FinalsClub!' );
1527 res.redirect( '/' );
1529 res.render( 'info', 'Your profile was successfully updated!' );
1531 res.render( 'profile/index', { 'user' : user } );
1536 res.render( 'profile/index', { 'user' : user } );
1543 function loadSubject( req, res, next ) {
1544 if( url.parse( req.url ).pathname.match(/subject/) ) {
1545 ArchivedSubject.findOne({id: req.params.id }, function(err, subject) {
1547 res.json( {status: 'error', message: 'Subject with this ID does not exist'} )
1549 req.subject = subject;
1558 function loadOldCourse( req, res, next ) {
1559 if( url.parse( req.url ).pathname.match(/course/) ) {
1560 ArchivedCourse.findOne({id: req.params.id }, function(err, course) {
1562 res.json( {status: 'error', message: 'Course with this ID does not exist'} )
1564 req.course = course;
1573 var featuredCourses = [
1574 {name: 'The Human Mind', 'id': 1563},
1575 {name: 'Justice', 'id': 797},
1576 {name: 'Protest Literature', 'id': 1681},
1577 {name: 'Animal Cognition', 'id': 681},
1578 {name: 'Positive Psychology', 'id': 1793},
1579 {name: 'Social Psychology', 'id': 660},
1580 {name: 'The Book from Gutenberg to the Internet', 'id': 1439},
1581 {name: 'Cyberspace in Court', 'id': 1446},
1582 {name: 'Nazi Cinema', 'id': 2586},
1583 {name: 'Media and the American Mind', 'id': 2583},
1584 {name: 'Social Thought in Modern America', 'id': 2585},
1585 {name: 'Major British Writers II', 'id': 869},
1586 {name: 'Civil Procedure', 'id': 2589},
1587 {name: 'Evidence', 'id': 2590},
1588 {name: 'Management of Industrial and Nonprofit Organizations', 'id': 2591},
1591 app.get( '/learn', loadUser, function( req, res ) {
1592 res.render( 'archive/learn', { 'courses' : featuredCourses } );
1595 app.get( '/learn/random', loadUser, function( req, res ) {
1596 res.redirect( '/archive/course/'+ featuredCourses[Math.floor(Math.random()*featuredCourses.length)].id);
1599 app.get( '/archive', checkAjax, loadUser, function( req, res ) {
1600 ArchivedSubject.find({}).sort( 'name', '1' ).run( function( err, subjects ) {
1602 res.json( {status: 'error', message: 'There was a problem gathering the archived courses, please try again later.'} );
1604 res.json( { 'subjects' : subjects, 'user': req.user.sanitized } );
1609 app.get( '/archive/subject/:id', checkAjax, loadUser, loadSubject, function( req, res ) {
1610 ArchivedCourse.find({subject_id: req.params.id}).sort('name', '1').run(function(err, courses) {
1612 res.json( {status: 'error', message: 'There are no archived courses'} );
1614 res.json( { 'courses' : courses, 'subject': req.subject, 'user': req.user.sanitized } );
1619 app.get( '/archive/course/:id', checkAjax, loadUser, loadOldCourse, function( req, res ) {
1620 ArchivedNote.find({course_id: req.params.id}).sort('name', '1').run(function(err, notes) {
1622 res.json( {status: 'error', message: 'There are no notes in this course'} );
1624 res.json( { 'notes' : notes, 'course' : req.course, 'user': req.user.sanitized } );
1629 app.get( '/archive/note/:id', checkAjax, loadUser, function( req, res ) {
1630 ArchivedNote.findById(req.params.id, function(err, note) {
1632 res.json( {status: 'error', message: 'This is not a valid id for a note'} );
1634 ArchivedCourse.findOne({id: note.course_id}, function(err, course) {
1636 res.json( {status: 'error', message: 'There is no course for this note'} )
1638 res.json( { 'layout' : 'notesLayout', 'note' : note, 'course': course, 'user': req.user.sanitized } );
1646 app.get( '*', function(req, res) {
1647 res.sendfile('public/index.html');
1652 // The finalsclub backchannel server uses socket.io to handle communication between the server and
1653 // the browser which facilitates near realtime interaction. This allows the user to post questions
1654 // and comments and other users to get those almost immediately after they are posted, without
1655 // reloading the page or pressing a button to refresh.
1657 // The server code itself is fairly simple, mainly taking incomming messages from client browsers,
1658 // saving the data to the database, and then sending it out to everyone else connected.
1661 // Posts - Posts are the main items in backchannel, useful for questions or discussion points
1662 // [[ example object needed with explanation E.G:
1664 Post: { postID: '999-1',
1666 userName: 'Bob Jones',
1667 userAffil: 'Instructor',
1668 body: 'This is the text content of the post.',
1669 comments: { {<commentObj>, <commentObj>, ...},
1671 votes: [ <userID>, <userID>, ...],
1672 reports: [ <userID>, <userID>, ...]
1674 Comment: { body: 'foo bar', userName: 'Bob Jones', userAffil: 'Instructor' }
1676 if anonymous: userName => 'Anonymous', userAffil => 'N/A'
1681 // Comments - Comments are replies to posts, for clarification or answering questions
1682 // [[ example object needed]]
1683 // Votes - Votes signifyg a users approval of a post
1684 // [[ example object needed]]
1685 // Flags - Flagging a post signifies that it is against the rules, 2 flags moves it to the bottomw
1686 // [[ example object needed]]
1690 // body - Main content of the post
1691 // userId - Not currently used, but would contain the users id that made the post
1692 // userName - Users name that made post
1693 // userAffil - Users affiliation to their school
1694 // public - Boolean which denotes if the post is public to everyone, or private to school users only
1695 // date - Date post was made, updates when any comments are made for the post
1696 // comments - An array of comments which contain a body, userName, and userAffil
1697 // votes - An array of user ids which are the users that voted
1698 // [[ example needed ]]
1699 // reports - An array of user ids which are the users that reported the post
1700 // [[ reports would be "this post is flagged as inappropriate"? ]]
1701 // [[ bruml: consistent terminology needed ]]
1703 // Posts and comments can be made anonymously. When a post is anonymous, the users info is stripped
1704 // from the post and the userName is set to Anonymous and the userAffil to N/A. This is to allow
1705 // users the ability to make posts or comments that they might not otherwise due to not wanting
1706 // the content of the post/comment to be attributed to them.
1708 // Each time a user connects to the server, it passes through authorization which checks for a cookie
1709 // that is set by Express. If a session exists and it is for a valid logged in user, then handshake.user
1710 // is set to the users data, otherwise it is set to false. handshake.user is used later on to check if a
1711 // user is logged in, and if so display information that otherwise might not be visible to them if they
1712 // aren't apart of a particular school.
1714 // After the authorization step, the client browser sends the lecture id which is rendered into the html
1715 // page on page load from Express. This is then used to assign a 'room' for the user which is grouped
1716 // by lecture. All posts are grouped by lecture, and only exist for that lecture. After the user is
1717 // grouped into a 'room', they are sent a payload of all existing posts for that lecture, which are then
1718 // rendered in the browser.
1720 // Everything else from this point on is handled in an event form and requires a user initiating it. The
1721 // events are as follows.
1724 // A user makes a new post. A payload of data containing the post and lecture id is sent to the server.
1725 // The server recieves the data, assembles a new post object for the database and then fills it with
1726 // the appropriate data. If a user selected for the post to be anonymous, the userName and userAffil are
1727 // replaced. If the user chose for the post to be private, then public will be set to false and it
1728 // will be filtered from being sent to users not logged into and not having access to the school. Once
1729 // the post has been created and saved into the database, it is sent to all connected users to that
1730 // particular lecture, unless it is private, than only logged in users will get it.
1733 // A user votes for a post. A payload of data containing the post id and lecture id are sent along with
1734 // the user id. A new vote is created by first fetching the parent post, then adding the user id to the
1735 // votes array, and then the post is subsequently saved back to the database and sent to all connected
1736 // users unless the post is private, which then it will be only sent to logged in users.
1739 // Similar to the vote event, reports are sent as a payload of a post id, lecture id, and user id, which
1740 // are then used to fetch the parent post, add the user id to the reports array, and then saved to the db.
1741 // Then the report is sent out to all connected users unless it is a private post, which will be only sent
1742 // to logged in users. On the client, once a post has more two (2) or more reports, it will be moved to the
1743 // bottom of the interface.
1746 // A user posts a comment to a post. A payload of data containing the post id, lecture id, comment body,
1747 // user name, and user affiliation are sent to the server, which are then used to find the parent post
1748 // and then a new comment object is assembled. When new comments are made, it updates the posts date
1749 // which allows the post to be sorted by date and the posts with the freshest comments would be pushed
1750 // to the top of the interface. The comment can be anonymous, which then will have the user
1751 // name and affiliation stripped before saving to the database. The comment then will be sent out to all
1752 // connected users unless the post is private, then only logged in users will recieve the comment.
1754 var io = require( 'socket.io' ).listen( app );
1756 var Post = mongoose.model( 'Post' );
1758 io.set('authorization', function ( handshake, next ) {
1759 var rawCookie = handshake.headers.cookie;
1761 handshake.cookie = parseCookie(rawCookie);
1762 handshake.sid = handshake.cookie['connect.sid'];
1764 if ( handshake.sid ) {
1765 app.set( 'sessionStore' ).get( handshake.sid, function( err, session ) {
1767 handshake.user = false;
1768 return next(null, true);
1770 // bake a new session object for full r/w
1771 handshake.session = new Session( handshake, session );
1773 User.findOne( { session : handshake.sid }, function( err, user ) {
1775 handshake.user = user;
1776 return next(null, true);
1778 handshake.user = false;
1779 return next(null, true);
1787 return next(null, true);
1791 var backchannel = new Backchannel(app, io.of('/backchannel'), {
1792 subscribe: function(lecture, send) {
1793 Post.find({'lecture': lecture}, function(err, posts) {
1797 post: function(fillPost) {
1798 var post = new Post;
1799 fillPost(post, function(send) {
1800 post.save(function(err) {
1805 items: function(postId, addItem) {
1806 Post.findById(postId, function( err, post ) {
1807 addItem(post, function(send) {
1808 post.save(function(err) {
1823 .on( 'connection', function( socket ) {
1824 // pull out user/session information etc.
1825 var handshake = socket.handshake;
1826 var userID = handshake.user._id;
1833 socket.on( 'join', function( note ) {
1834 if (handshake.user === false) {
1836 // XXX: replace by addToSet (once it's implemented in mongoose)
1837 Note.findById( noteID, function( err, note ) {
1839 if( note.collaborators.indexOf( userID ) == -1 ) {
1840 note.collaborators.push( userID );
1848 socket.on( 'watch', function( l ) {
1849 var sendCounts = function() {
1852 Note.find( { '_id' : { '$in' : watched } }, function( err, notes ) {
1855 function( note, callback ) {
1857 var count = note.collaborators.length;
1863 socket.emit( 'counts', send );
1865 timer = setTimeout( sendCounts, 5000 );
1871 Note.find( { 'lecture' : l }, [ '_id' ], function( err, notes ) {
1872 notes.forEach( function( note ) {
1873 watched.push( note._id );
1880 socket.on( 'disconnect', function() {
1881 clearTimeout( timer );
1883 if (handshake.user === false) {
1884 // XXX: replace with $pull once it's available
1886 Note.findById( noteID, function( err, note ) {
1888 var index = note.collaborators.indexOf( userID );
1891 note.collaborators.splice( index, 1 );
1902 // Exception Catch-All
1904 process.on('uncaughtException', function (e) {
1905 console.log("!!!!!! UNCAUGHT EXCEPTION\n" + e.stack);
1911 mongoose.connect( app.set( 'dbUri' ) );
1912 mongoose.connection.db.serverConfig.connection.autoReconnect = true
1914 var mailer = new Mailer( app.set('awsAccessKey'), app.set('awsSecretKey') );
1916 app.listen( serverPort, function() {
1917 console.log( "Express server listening on port %d in %s mode", app.address().port, app.settings.env );
1919 // if run as root, downgrade to the owner of this file
1920 if (process.getuid() === 0) {
1921 require('fs').stat(__filename, function(err, stats) {
1922 if (err) { return console.log(err); }
1923 process.setuid(stats.uid);
1928 function isValidEmail(email) {
1929 var re = /[a-z0-9!#$%&'*+\/=?^_`{|}~-]+(?:\.[a-z0-9!#$%&'*+\/=?^_`{|}~-]+)*@(?:[a-z0-9](?:[a-z0-9-]*[a-z0-9])?\.)+[a-z0-9](?:[a-z0-9-]*[a-z0-9])?/;
1930 return email.match(re);