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 // Sets the routers middleware to load after everything set
159 // before it, but before static files.
160 app.use( app.router );
161 // Static files are loaded when no dynamic views match.
162 app.use( express.static( __dirname + '/public' ) );
164 // This is the errorHandler set in configuration earlier
165 // being set to a variable to be used after all other
166 // middleware is loaded. Error handling should always
167 // come last or near the bottom.
168 var errorHandler = app.set( 'errorHandler' );
170 app.use( errorHandler );
174 // Mailer functions and helpers
175 // These are helper functions that make for cleaner code.
177 // sendUserActivation is for when a user registers and
178 // first needs to activate their account to use it.
179 function sendUserActivation( user ) {
183 'subject' : 'Activate your FinalsClub.org Account',
185 // Templates are in the email folder and use ejs
186 'template' : 'userActivation',
187 // Locals are used inside ejs so dynamic information
188 // can be rendered properly.
191 'serverHost' : serverHost
195 // Email is sent here
196 mailer.send( message, function( err, result ) {
198 // XXX: Add route to resend this email
199 console.log( 'Error sending user activation email\nError Message: '+err.Message );
201 console.log( 'Successfully sent user activation email.' );
206 // sendUserWelcome is for when a user registers and
207 // a welcome email is sent.
208 function sendUserWelcome( user, school ) {
209 // If a user is not apart of a supported school, they are
210 // sent a different template than if they are apart of a
212 var template = school ? 'userWelcome' : 'userWelcomeNoSchool';
216 'subject' : 'Welcome to FinalsClub',
218 'template' : template,
221 'serverHost' : serverHost
225 mailer.send( message, function( err, result ) {
227 // XXX: Add route to resend this email
228 console.log( 'Error sending user welcome email\nError Message: '+err.Message );
230 console.log( 'Successfully sent user welcome email.' );
236 // These functions are used later in the routes to help
237 // load information and variables, as well as handle
238 // various instances like checking if a user is logged in
240 function loggedIn( req, res, next ) {
241 // If req.user is set, then pass on to the next function
242 // or else alert the user with an error message.
246 req.flash( 'error', 'You must be logged in to access that feature!' );
251 // This loads the user if logged in
252 function loadUser( req, res, next ) {
253 var sid = req.sessionID;
255 console.log( 'got request from session ID: %s', sid );
257 // Find a user based on their stored session id
258 User.findOne( { session : sid }, function( err, user ) {
263 // If a user is found then set req.user the contents of user
264 // and make sure req.user.loggedIn is true.
268 req.user.loggedIn = true;
270 log3( 'authenticated user: '+req.user._id+' / '+req.user.email+'');
272 // Check if a user is activated. If not, then redirec
273 // to the homepage and tell them to check their email
274 // for the activation email.
275 if( req.user.activated ) {
276 // Is the user's profile complete? If not, redirect to their profile
277 if( ! req.user.isComplete ) {
278 if( url.parse( req.url ).pathname != '/profile' ) {
279 req.flash( 'info', 'Your profile is incomplete. Please complete your profile to fully activate your account.' );
281 res.redirect( '/profile' );
289 req.flash( 'info', 'This account has not been activated. Check your email for the activation URL.' );
294 // If no user record was found, then we store the requested
295 // path they intended to view and redirect them after they
296 // login if it is requred.
297 var path = url.parse( req.url ).pathname;
298 req.session.redirect = path;
300 // Set req.user to an empty object so it doesn't throw errors
301 // later on that it isn't defined.
309 // loadSchool is used to load a school by it's id
310 function loadSchool( req, res, next ) {
312 var schoolId = req.params.id;
314 School.findById( schoolId, function( err, school ) {
318 // If a school is found, the user is checked to see if they are
319 // authorized to see or interact with anything related to that
321 school.authorize( user, function( authorized ){
322 req.school.authorized = authorized;
326 // If no school is found, display an appropriate error.
327 req.flash( 'error', 'Invalid school specified!' );
334 // loadSchool is used to load a course by it's id
335 function loadCourse( req, res, next ) {
337 var courseId = req.params.id;
339 Course.findById( courseId, function( err, course ) {
340 if( course && !course.deleted ) {
343 // If a course is found, the user is checked to see if they are
344 // authorized to see or interact with anything related to that
346 course.authorize( user, function( authorized ) {
347 req.course.authorized = authorized;
352 // If no course is found, display an appropriate error.
353 req.flash( 'error', 'Invalid course specified!' );
360 // loadLecture is used to load a lecture by it's id
361 function loadLecture( req, res, next ) {
363 var lectureId = req.params.id;
365 Lecture.findById( lectureId, function( err, lecture ) {
366 if( lecture && !lecture.deleted ) {
367 req.lecture = lecture;
369 // If a lecture is found, the user is checked to see if they are
370 // authorized to see or interact with anything related to that
372 lecture.authorize( user, function( authorized ) {
373 req.lecture.authorized = authorized;
378 // If no lecture is found, display an appropriate error.
379 req.flash( 'error', 'Invalid lecture specified!' );
386 // loadNote is used to load a note by it's id
387 // This is a lot more complicated than the above
388 // due to public/private handling of notes.
389 function loadNote( req, res, next ) {
390 var user = req.user ? req.user : false;
391 var noteId = req.params.id;
393 Note.findById( noteId, function( err, note ) {
394 // If a note is found, and user is set, check if
395 // user is authorized to interact with that note.
396 if( note && user && !note.deleted ) {
397 note.authorize( user, function( auth ) {
399 // If authorzied, then set req.note to be used later
403 } else if ( note.public ) {
404 // If not authorized, but the note is public, then
405 // designate the note read only (RO) and store req.note
411 // If the user is not authorized and the note is private
412 // then display and error.
413 req.flash( 'error', 'You do not have permission to access that note.' );
418 } else if ( note && note.public && !note.deleted ) {
419 // If note is found, but user is not set because they are not
420 // logged in, and the note is public, set the note to read only
421 // and store the note for later.
426 } else if ( note && !note.public && !note.deleted ) {
427 // If the note is found, but user is not logged in and the note is
428 // not public, then ask them to login to view the note. Once logged
429 // in they will be redirected to the note, at which time authorization
430 // handling will be put in effect above.
431 req.session.redirect = '/note/' + note._id;
432 req.flash( 'error', 'You must be logged in to view that note.' );
433 res.redirect( '/login' );
436 req.flash( 'error', 'Invalid note specified!' );
438 res.redirect( '/schools' );
443 function checkAjax( req, res, next ) {
451 // Dynamic Helpers are loaded automatically into views
452 app.dynamicHelpers( {
453 // express-messages is for flash messages for easy
454 // errors and information display
455 'messages' : require( 'express-messages' ),
457 // By default the req object isn't sen't to views
458 // during rendering, this allows you to use the
459 // user object if available in views.
460 'user' : function( req, res ) {
464 // Same, this allows session to be available in views.
465 'session' : function( req, res ) {
471 // The following are the main CRUD routes that are used
472 // to make up this web app.
476 app.get( '/', loadUser, function( req, res ) {
479 res.render( 'index' );
483 // Used to display all available schools and any courses
485 // Public with some private information
486 app.get( '/schools', checkAjax, loadUser, function( req, res ) {
489 // Find all schools and sort by name
490 // XXX mongoose's documentation on sort is extremely poor, tread carefully
491 School.find( {} ).sort( 'name', '1' ).run( function( err, schools ) {
493 // If schools are found, loop through them gathering any courses that are
494 // associated with them and then render the page with that information.
497 function( school, callback ) {
498 // Check if user is authorized with each school
499 school.authorize( user, function( authorized ) {
500 // This is used to display interface elements for those users
501 // that are are allowed to see them, for instance a 'New Course' button.
502 school.authorized = authorized;
504 // Find all courses for school by it's id and sort by name
505 Course.find( { 'school' : school._id } ).sort( 'name', '1' ).run( function( err, courses ) {
506 // If any courses are found, set them to the appropriate school, otherwise
508 if( courses.length > 0 ) {
509 school.courses = courses.filter(function(course) {
510 if (!course.deleted) return course;
515 // This tells async (the module) that each iteration of forEach is
516 // done and will continue to call the rest until they have all been
517 // completed, at which time the last function below will be called.
522 // After all schools and courses have been found, render them
524 //res.render( 'schools', { 'schools' : schools } );
525 res.json({ 'schools' : schools });
529 // If no schools have been found, display none
530 //res.render( 'schools', { 'schools' : [] } );
531 res.json({ 'schools' : [] });
537 // Displays form to create new course
538 // Private, requires user to be authorized
539 app.get( '/:id/course/new', loadUser, loadSchool, function( req, res ) {
540 // Load school from middleware
541 var school = req.school;
543 // If school was not loaded for whatever reason, or the user is not authorized
544 // then redirect to the main schools page.
545 if( ( ! school ) || ( ! school.authorized ) ) {
546 return res.redirect( '/schools' );
549 // If they are authorized and the school exists, then render the page
550 res.render( 'course/new', { 'school': school } );
553 // Recieves new course form
554 app.post( '/:id/course/new', loadUser, loadSchool, function( req, res ) {
555 var school = req.school;
556 // Creates new course from Course Schema
557 var course = new Course;
558 // Gathers instructor information from form
559 var instructorEmail = req.body.email.toLowerCase();
560 var instructorName = req.body.instructorName;
562 // If school doesn't exist or user is not authorized redirect to main schools page
563 if( ( ! school ) || ( ! school.authorized ) ) {
564 res.redirect( '/schools' );
567 // If instructorEmail isn't set, or name isn't set, display error and re-render the page.
568 if ( !instructorEmail || !instructorName ) {
569 req.flash( 'error', 'Invalid parameters!' )
570 return res.render( 'course/new' );
573 // Fill out the course with information from the form
574 course.number = req.body.number;
575 course.name = req.body.name;
576 course.description = req.body.description;
577 course.school = school._id;
578 course.creator = req.user._id;
579 course.subject = req.body.subject;
580 course.department = req.body.department;
582 // Check if a user exists with the instructorEmail, if not then create
583 // a new user and send them an instructor welcome email.
584 User.findOne( { 'email' : instructorEmail }, function( err, user ) {
588 user.name = instructorName
589 user.email = instructorEmail;
590 user.affil = 'Instructor';
591 user.school = school.name;
593 user.activated = false;
595 // Validate instructorEmail
596 // XXX Probably could be done before checking db
597 if ( ( user.email === '' ) || ( !isValidEmail( user.email ) ) ) {
598 req.flash( 'error', 'Please enter a valid email' );
599 // XXX This needs to be fixed, this is not the proper flow
600 return res.redirect( '/register' );
602 // Once the new user information has been completed, save the user
603 // to the database then email them the instructor welcome email.
604 user.save(function( err ) {
605 // If there was an error saving the instructor, prompt the user to fill out
606 // the information again.
608 req.flash( 'error', 'Invalid parameters!' )
609 return res.render( 'course/new' );
614 'subject' : 'A non-profit open education initiative',
616 'template' : 'instructorInvite',
621 'serverHost' : serverHost
625 mailer.send( message, function( err, result ) {
627 console.log( 'Error inviting instructor to course!' );
629 console.log( 'Successfully invited instructor to course.' );
633 // After emails are sent, set the courses instructor to the
634 // new users id and then save the course to the database.
635 course.instructor = user._id;
636 course.save( function( err ) {
638 // XXX better validation
639 req.flash( 'error', 'Invalid parameters!' );
641 return res.render( 'course/new' );
643 // Once the course has been completed email the admin with information
644 // on the course and new instructor
648 'subject' : school.name+' has a new course: '+course.name,
650 'template' : 'newCourse',
655 'serverHost' : serverHost
659 mailer.send( message, function( err, result ) {
661 console.log( 'Error sending new course email to info@finalsclub.org' )
663 console.log( 'Successfully invited instructor to course')
666 // Redirect the user to the schools page where they can see
668 // XXX Redirect to the new course instead
669 res.redirect( '/schools' );
675 // If the user exists, then check if they are already and instructor
676 if (user.affil === 'Instructor') {
677 // If they are an instructor, then save the course with the appropriate
678 // information and email the admin.
679 course.instructor = user._id;
680 course.save( function( err ) {
682 // XXX better validation
683 req.flash( 'error', 'Invalid parameters!' );
685 return res.render( 'course/new' );
690 'subject' : school.name+' has a new course: '+course.name,
692 'template' : 'newCourse',
697 'serverHost' : serverHost
701 mailer.send( message, function( err, result ) {
703 console.log( 'Error sending new course email to info@finalsclub.org' )
705 console.log( 'Successfully invited instructor to course')
708 // XXX Redirect to the new course instead
709 res.redirect( '/schools' );
713 // The existing user isn't an instructor, so the user is notified of the error
714 // and the course isn't created.
715 req.flash( 'error', 'The existing user\'s email you entered is not an instructor' );
716 res.render( 'course/new' );
722 // Individual Course Listing
723 // Public with private information
724 app.get( '/course/:id', loadUser, loadCourse, function( req, res ) {
725 var userId = req.user._id;
726 var course = req.course;
728 // Check if the user is subscribed to the course
729 // XXX Not currently used for anything
730 var subscribed = course.subscribed( userId );
732 // Find lectures associated with this course and sort by name
733 Lecture.find( { 'course' : course._id } ).sort( 'name', '1' ).run( function( err, lectures ) {
734 // Get course instructor information using their id
735 User.findById( course.instructor, function( err, instructor ) {
736 // Render course and lectures
737 res.render( 'course/index', { 'course' : course, 'instructor': instructor, 'subscribed' : subscribed, 'lectures' : lectures } );
743 app.get( '/course/:id/edit', loadUser, loadCourse, function( req, res) {
744 var course = req.course;
748 res.render( 'course/new', {course: course} )
750 req.flash( 'error', 'You don\'t have permission to do that' )
751 res.redirect( '/schools' );
755 // Recieve Course Edit Form
756 app.post( '/course/:id/edit', loadUser, loadCourse, function( req, res ) {
757 var course = req.course;
761 var courseChanges = req.body;
762 course.number = courseChanges.number;
763 course.name = courseChanges.name;
764 course.description = courseChanges.description;
765 course.department = courseChanges.department;
767 course.save(function(err) {
769 req.flash( 'error', 'There was an error saving the course' );
771 res.redirect( '/course/'+ course._id.toString());
774 req.flash( 'error', 'You don\'t have permission to do that' )
775 res.redirect( '/schools' );
780 app.get( '/course/:id/delete', loadUser, loadCourse, function( req, res) {
781 var course = req.course;
785 course.delete(function( err ) {
786 if ( err ) req.flash( 'info', 'There was a problem removing course: ' + err )
787 else req.flash( 'info', 'Successfully removed course' )
788 res.redirect( '/schools' );
791 req.flash( 'error', 'You don\'t have permission to do that' )
792 res.redirect( '/schools' );
796 // Subscribe to course
797 // XXX Not currently used for anything
798 app.get( '/course/:id/subscribe', loadUser, loadCourse, function( req, res ) {
799 var course = req.course;
800 var userId = req.user._id;
802 course.subscribe( userId, function( err ) {
804 req.flash( 'error', 'Error subscribing to course!' );
807 res.redirect( '/course/' + course._id );
811 // Unsubscribe from course
812 // XXX Not currently used for anything
813 app.get( '/course/:id/unsubscribe', loadUser, loadCourse, function( req, res ) {
814 var course = req.course;
815 var userId = req.user._id;
817 course.unsubscribe( userId, function( err ) {
819 req.flash( 'error', 'Error unsubscribing from course!' );
822 res.redirect( '/course/' + course._id );
826 // Create new lecture
827 app.get( '/course/:id/lecture/new', loadUser, loadCourse, function( req, res ) {
828 var courseId = req.params.id;
829 var course = req.course;
832 // If course isn't valid or user isn't authorized for course, redirect
833 if( ( ! course ) || ( ! course.authorized ) ) {
834 return res.redirect( '/course/' + courseId );
837 // Render new lecture form
838 res.render( 'lecture/new', { 'lecture' : lecture } );
841 // Recieve New Lecture Form
842 app.post( '/course/:id/lecture/new', loadUser, loadCourse, function( req, res ) {
843 var courseId = req.params.id;
844 var course = req.course;
845 // Create new lecture from Lecture schema
846 var lecture = new Lecture;
848 if( ( ! course ) || ( ! course.authorized ) ) {
849 res.redirect( '/course/' + courseId );
854 // Populate lecture with form data
855 lecture.name = req.body.name;
856 lecture.date = req.body.date;
857 lecture.course = course._id;
858 lecture.creator = req.user._id;
860 // Save lecture to database
861 lecture.save( function( err ) {
863 // XXX better validation
864 req.flash( 'error', 'Invalid parameters!' );
866 res.render( 'lecture/new', { 'lecture' : lecture } );
868 // XXX Redirect to new lecture instead
869 res.redirect( '/course/' + course._id );
875 // Display individual lecture and related notes
876 app.get( '/lecture/:id', loadUser, loadLecture, function( req, res ) {
877 var lecture = req.lecture;
879 // Grab the associated course
880 // XXX this should be done with DBRefs eventually
881 Course.findById( lecture.course, function( err, course ) {
883 // If course is found, find instructor information to be displayed on page
884 User.findById( course.instructor, function( err, instructor ) {
885 // Pull out our notes
886 Note.find( { 'lecture' : lecture._id } ).sort( 'name', '1' ).run( function( err, notes ) {
887 if ( !req.user.loggedIn || !req.lecture.authorized ) {
888 // Loop through notes and only return those that are public if the
889 // user is not logged in or not authorized for that lecture
890 notes = notes.filter(function( note ) {
891 if ( note.public ) return note;
894 // Render lecture and notes
895 res.render( 'lecture/index', {
898 'instructor' : instructor,
902 'javascripts' : [ 'counts.js' ]
907 // XXX with DBRefs we will be able to reassign orphaned courses/lecture/pads
909 req.flash( 'error', 'That lecture is orphaned!' );
916 // Display new note form
917 app.get( '/lecture/:id/notes/new', loadUser, loadLecture, function( req, res ) {
918 var lectureId = req.params.id;
919 var lecture = req.lecture;
922 if( ( ! lecture ) || ( ! lecture.authorized ) ) {
923 res.redirect( '/lecture/' + lectureId );
928 res.render( 'notes/new', { 'note' : note } );
931 // Recieve new note form
932 app.post( '/lecture/:id/notes/new', loadUser, loadLecture, function( req, res ) {
933 var lectureId = req.params.id;
934 var lecture = req.lecture;
936 if( ( ! lecture ) || ( ! lecture.authorized ) ) {
937 res.redirect( '/lecture/' + lectureId );
942 // Create note from Note schema
945 // Populate note from form data
946 note.name = req.body.name;
947 note.date = req.body.date;
948 note.lecture = lecture._id;
949 note.public = req.body.private ? false : true;
950 note.creator = req.user._id;
952 // Save note to database
953 note.save( function( err ) {
955 // XXX better validation
956 req.flash( 'error', 'Invalid parameters!' );
958 res.render( 'notes/new', { 'note' : note } );
960 // XXX Redirect to new note instead
961 res.redirect( '/lecture/' + lecture._id );
967 // Display individual note page
968 app.get( '/note/:id', loadUser, loadNote, function( req, res ) {
970 // Set read only id for etherpad-lite or false for later check
971 var roID = note.roID || false;
973 var lectureId = note.lecture;
975 // Count the amount of visits, but only once per session
976 if ( req.session.visited ) {
977 if ( req.session.visited.indexOf( note._id.toString() ) == -1 ) {
978 req.session.visited.push( note._id );
982 req.session.visited = [];
983 req.session.visited.push( note._id );
987 // If a read only id exists process note
991 // If read only id doesn't, then fetch the read only id from the database and then
993 // XXX Soon to be depracated due to a new API in etherpad that makes for a
994 // much cleaner solution.
995 db.open('mongodb://' + app.set( 'dbHost' ) + '/etherpad/etherpad', function( err, epl ) {
996 epl.findOne( { key: 'pad2readonly:' + note._id }, function(err, record) {
998 roID = record.value.replace(/"/g, '');
1007 function processReq() {
1009 Lecture.findById( lectureId, function( err, lecture ) {
1011 req.flash( 'error', 'That notes page is orphaned!' );
1013 res.redirect( '/' );
1015 // Find notes based on lecture id, which will be displayed in a dropdown
1017 Note.find( { 'lecture' : lecture._id }, function( err, otherNotes ) {
1019 // User is logged in and sees full notepad
1021 res.render( 'notes/index', {
1022 'layout' : 'noteLayout',
1023 'host' : serverHost,
1025 'lecture' : lecture,
1026 'otherNotes' : otherNotes,
1029 'stylesheets' : [ 'dropdown.css', 'fc2.css' ],
1030 'javascripts' : [ 'dropdown.js', 'counts.js', 'backchannel.js', 'jquery.tmpl.min.js' ]
1033 // User is not logged in and sees notepad that is public
1034 res.render( 'notes/public', {
1035 'layout' : 'noteLayout',
1036 'host' : serverHost,
1038 'otherNotes' : otherNotes,
1040 'lecture' : lecture,
1041 'stylesheets' : [ 'dropdown.css', 'fc2.css' ],
1042 'javascripts' : [ 'dropdown.js', 'counts.js', 'backchannel.js', 'jquery.tmpl.min.js' ]
1050 // Static pages and redirects
1051 app.get( '/about', loadUser, function( req, res ) {
1052 res.redirect( 'http://blog.finalsclub.org/about.html' );
1055 app.get( '/press', loadUser, function( req, res ) {
1056 res.render( 'static/press' );
1059 app.get( '/conduct', loadUser, function( req, res ) {
1060 res.render( 'static/conduct' );
1063 app.get( '/legal', loadUser, function( req, res ) {
1064 res.redirect( 'http://blog.finalsclub.org/legal.html' );
1067 app.get( '/contact', loadUser, function( req, res ) {
1068 res.redirect( 'http://blog.finalsclub.org/contact.html' );
1071 app.get( '/privacy', loadUser, function( req, res ) {
1072 res.render( 'static/privacy' );
1076 // Authentication routes
1077 // These are used for logging in, logging out, registering
1078 // and other user authentication purposes
1080 // Render login page
1081 app.get( '/login', function( req, res ) {
1082 log3("get login page")
1084 res.render( 'login' );
1087 // Recieve login form
1088 app.post( '/login', function( req, res ) {
1089 var email = req.body.email;
1090 var password = req.body.password;
1091 log3("post login ...")
1093 // Find user from email
1094 User.findOne( { 'email' : email.toLowerCase() }, function( err, user ) {
1098 // If user exists, check if activated, if not notify them and send them to
1101 if( ! user.activated ) {
1102 // (undocumented) markdown-esque link functionality in req.flash
1103 req.flash( 'error', 'This account isn\'t activated. Check your inbox or [click here](/resendActivation) to resend the activation email.' );
1105 req.session.activateCode = user._id;
1107 res.render( 'login' );
1109 // If user is activated, check if their password is correct
1110 if( user.authenticate( password ) ) {
1113 var sid = req.sessionID;
1117 // Set the session then save the user to the database
1118 user.save( function() {
1119 var redirect = req.session.redirect;
1121 // login complete, remember the user's email for next time
1122 req.session.email = email;
1124 // alert the successful login
1125 req.flash( 'info', 'Successfully logged in!' );
1127 // redirect to profile if we don't have a stashed request
1128 res.redirect( redirect || '/profile' );
1131 // Notify user of bad login
1132 req.flash( 'error', 'Invalid login!' );
1134 res.render( 'login' );
1138 // Notify user of bad login
1140 req.flash( 'error', 'Invalid login!' );
1142 res.render( 'login' );
1147 // Request reset password
1148 app.get( '/resetpw', function( req, res ) {
1149 log3("get resetpw page");
1150 res.render( 'resetpw' );
1153 // Display reset password from requested email
1154 app.get( '/resetpw/:id', function( req, res ) {
1155 var resetPassCode = req.params.id
1156 res.render( 'resetpw', { 'verify': true, 'resetPassCode' : resetPassCode } );
1159 // Recieve reset password request form
1160 app.post( '/resetpw', function( req, res ) {
1161 log3("post resetpw");
1162 var email = req.body.email
1166 User.findOne( { 'email' : email.toLowerCase() }, function( err, user ) {
1169 // If user exists, create reset code
1170 var resetPassCode = hat(64);
1171 user.setResetPassCode(resetPassCode);
1173 // Construct url that the user can then click to reset password
1174 var resetPassUrl = 'http://' + serverHost + ((app.address().port != 80)? ':'+app.address().port: '') + '/resetpw/' + resetPassCode;
1176 // Save user to database
1177 user.save( function( err ) {
1178 log3('save '+user.email);
1180 // Construct email and send it to the user
1184 'subject' : 'Your FinalsClub.org Password has been Reset!',
1186 'template' : 'userPasswordReset',
1188 'resetPassCode' : resetPassCode,
1189 'resetPassUrl' : resetPassUrl
1193 mailer.send( message, function( err, result ) {
1195 // XXX: Add route to resend this email
1197 console.log( 'Error sending user password reset email!' );
1199 console.log( 'Successfully sent user password reset email.' );
1204 // Render request success page
1205 res.render( 'resetpw-success', { 'email' : email } );
1209 res.render( 'resetpw-error', { 'email' : email } );
1214 // Recieve reset password form
1215 app.post( '/resetpw/:id', function( req, res ) {
1216 log3("post resetpw.code");
1217 var resetPassCode = req.params.id
1218 var email = req.body.email
1219 var pass1 = req.body.pass1
1220 var pass2 = req.body.pass2
1222 // Find user by email
1223 User.findOne( { 'email' : email.toLowerCase() }, function( err, user ) {
1225 // If user exists, and the resetPassCode is valid, pass1 and pass2 match, then
1226 // save user with new password and display success message.
1228 var valid = user.resetPassword(resetPassCode, pass1, pass2);
1230 user.save( function( err ) {
1231 res.render( 'resetpw-success', { 'verify' : true, 'email' : email, 'resetPassCode' : resetPassCode } );
1236 // If there was a problem, notify user
1238 res.render( 'resetpw-error', { 'verify' : true, 'email' : email } );
1243 // Display registration page
1244 app.get( '/register', function( req, res ) {
1245 log3("get reg page");
1247 // Populate school dropdown list
1248 School.find( {} ).sort( 'name', '1' ).run( function( err, schools ) {
1249 res.render( 'register', { 'schools' : schools } );
1253 // Recieve registration form
1254 app.post( '/register', function( req, res ) {
1255 var sid = req.sessionId;
1257 // Create new user from User schema
1258 var user = new User;
1260 // Populate user from form
1261 user.email = req.body.email.toLowerCase();
1262 user.password = req.body.password;
1264 // If school is set to other, then fill in school as what the
1266 user.school = req.body.school === 'Other' ? req.body.otherSchool : req.body.school;
1267 user.name = req.body.name;
1268 user.affil = req.body.affil;
1269 user.activated = false;
1272 if ( ( user.email === '' ) || ( !isValidEmail( user.email ) ) ) {
1273 req.flash( 'error', 'Please enter a valid email' );
1274 return res.redirect( '/register' );
1277 // Check if password is greater than 6 characters, otherwise notify user
1278 if ( req.body.password.length < 6 ) {
1279 req.flash( 'error', 'Please enter a password longer than eight characters' );
1280 return res.redirect( '/register' );
1283 // Pull out hostname from email
1284 var hostname = user.email.split( '@' ).pop();
1286 // Check if email is from one of the special domains
1287 if( /^(finalsclub.org|sleepless.com)$/.test( hostname ) ) {
1291 // Save user to database
1292 user.save( function( err ) {
1293 // If error, check if it is because the user already exists, if so
1294 // get the user information and let them know
1296 if( /dup key/.test( err.message ) ) {
1297 // attempting to register an existing address
1298 User.findOne({ 'email' : user.email }, function(err, result ) {
1299 if (result.activated) {
1300 // If activated, make sure they know how to contact the admin
1301 req.flash( 'error', 'There is already someone registered with this email, if this is in error contact info@finalsclub.org for help' )
1302 return res.redirect( '/register' )
1304 // If not activated, direct them to the resendActivation page
1305 req.flash( 'error', 'There is already someone registered with this email, if this is you, please check your email for the activation code' )
1306 return res.redirect( '/resendActivation' )
1310 // If any other type of error, prompt them to enter the registration again
1311 req.flash( 'error', 'An error occurred during registration.' );
1313 return res.redirect( '/register' );
1316 // send user activation email
1317 sendUserActivation( user );
1319 // Check if the hostname matches any in the approved schools
1320 School.findOne( { 'hostnames' : hostname }, function( err, school ) {
1322 // If there is a match, send associated welcome message
1323 sendUserWelcome( user, true );
1324 log3('school recognized '+school.name);
1325 // If no users exist for the school, create empty array
1326 if (!school.users) school.users = [];
1327 // Add user to the school
1328 school.users.push( user._id );
1330 // Save school to the database
1331 school.save( function( err ) {
1332 log3('school.save() done');
1333 // Notify user that they have been added to the school
1334 req.flash( 'info', 'You have automatically been added to the ' + school.name + ' network. Please check your email for the activation link' );
1335 res.redirect( '/' );
1337 // Construct admin email about user registration
1341 'subject' : 'FC User Registration : User added to ' + school.name,
1343 'template' : 'userSchool',
1349 // If there isn't a match, send associated welcome message
1350 sendUserWelcome( user, false );
1351 // Tell user to check for activation link
1352 req.flash( 'info', 'Your account has been created, please check your email for the activation link' )
1353 res.redirect( '/' );
1354 // Construct admin email about user registration
1358 'subject' : 'FC User Registration : Email did not match any schools',
1360 'template' : 'userNoSchool',
1366 // Send email to admin
1367 mailer.send( message, function( err, result ) {
1370 console.log( 'Error sending user has no school email to admin\nError Message: '+err.Message );
1372 console.log( 'Successfully sent user has no school email to admin.' );
1382 // Display resendActivation request page
1383 app.get( '/resendActivation', function( req, res ) {
1384 var activateCode = req.session.activateCode;
1386 // Check if user exists by activateCode set in their session
1387 User.findById( activateCode, function( err, user ) {
1388 if( ( ! user ) || ( user.activated ) ) {
1389 res.redirect( '/' );
1391 // Send activation and redirect to login
1392 sendUserActivation( user );
1394 req.flash( 'info', 'Your activation code has been resent.' );
1396 res.redirect( '/login' );
1401 // Display activation page
1402 app.get( '/activate/:code', function( req, res ) {
1403 var code = req.params.code;
1405 // XXX could break this out into a middleware
1407 res.redirect( '/' );
1410 // Find user by activation code
1411 User.findById( code, function( err, user ) {
1412 if( err || ! user ) {
1413 // If not found, notify user of invalid code
1414 req.flash( 'error', 'Invalid activation code!' );
1416 res.redirect( '/' );
1418 // If valid, then activate user
1419 user.activated = true;
1421 // Regenerate our session and log in as the new user
1422 req.session.regenerate( function() {
1423 user.session = req.sessionID;
1425 // Save user to database
1426 user.save( function( err ) {
1428 req.flash( 'error', 'Unable to activate account.' );
1430 res.redirect( '/' );
1432 req.flash( 'info', 'Account successfully activated. Please complete your profile.' );
1434 res.redirect( '/profile' );
1443 app.get( '/logout', function( req, res ) {
1444 var sid = req.sessionID;
1446 // Find user by session id
1447 User.findOne( { 'session' : sid }, function( err, user ) {
1449 // Empty out session id
1452 // Save user to database
1453 user.save( function( err ) {
1454 res.redirect( '/' );
1457 res.redirect( '/' );
1462 // Display users profile page
1463 app.get( '/profile', loadUser, loggedIn, function( req, res ) {
1464 var user = req.user;
1466 res.render( 'profile/index', { 'user' : user } );
1469 // Recieve profile edit page form
1470 app.post( '/profile', loadUser, loggedIn, function( req, res ) {
1471 var user = req.user;
1472 var fields = req.body;
1475 var wasComplete = user.isComplete;
1477 if( ! fields.name ) {
1478 req.flash( 'error', 'Please enter a valid name!' );
1482 user.name = fields.name;
1485 if( [ 'Student', 'Teachers Assistant' ].indexOf( fields.affiliation ) == -1 ) {
1486 req.flash( 'error', 'Please select a valid affiliation!' );
1490 user.affil = fields.affiliation;
1493 if( fields.existingPassword || fields.newPassword || fields.newPasswordConfirm ) {
1494 // changing password
1495 if( ( ! user.hashed ) || user.authenticate( fields.existingPassword ) ) {
1496 if( fields.newPassword === fields.newPasswordConfirm ) {
1497 // test password strength?
1499 user.password = fields.newPassword;
1501 req.flash( 'error', 'Mismatch in new password!' );
1506 req.flash( 'error', 'Please supply your existing password.' );
1512 user.major = fields.major;
1513 user.bio = fields.bio;
1515 user.showName = ( fields.showName ? true : false );
1518 user.save( function( err ) {
1520 req.flash( 'error', 'Unable to save user profile!' );
1522 if( ( user.isComplete ) && ( ! wasComplete ) ) {
1523 req.flash( 'info', 'Your account is now fully activated. Thank you for joining FinalsClub!' );
1525 res.redirect( '/' );
1527 res.render( 'info', 'Your profile was successfully updated!' );
1529 res.render( 'profile/index', { 'user' : user } );
1534 res.render( 'profile/index', { 'user' : user } );
1541 function loadSubject( req, res, next ) {
1542 if( url.parse( req.url ).pathname.match(/subject/) ) {
1543 ArchivedSubject.findOne({id: req.params.id }, function(err, subject) {
1545 req.flash( 'error', 'Subject with this ID does not exist' )
1546 res.redirect( '/archive' );
1548 req.subject = subject;
1557 function loadOldCourse( req, res, next ) {
1558 if( url.parse( req.url ).pathname.match(/course/) ) {
1559 ArchivedCourse.findOne({id: req.params.id }, function(err, course) {
1561 req.flash( 'error', 'Course with this ID does not exist' )
1562 res.redirect( '/archive' );
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', loadUser, function( req, res ) {
1600 ArchivedSubject.find({}).sort( 'name', '1' ).run( function( err, subjects ) {
1602 req.flash( 'error', 'There was a problem gathering the archived courses, please try again later.' );
1603 res.redirect( '/' );
1605 res.render( 'archive/index', { 'subjects' : subjects } );
1610 app.get( '/archive/subject/:id', loadUser, loadSubject, function( req, res ) {
1611 ArchivedCourse.find({subject_id: req.params.id}).sort('name', '1').run(function(err, courses) {
1613 req.flash( 'error', 'There are no archived courses' );
1614 res.redirect( '/' );
1616 res.render( 'archive/courses', { 'courses' : courses, 'subject': req.subject } );
1621 app.get( '/archive/course/:id', loadUser, loadOldCourse, function( req, res ) {
1622 ArchivedNote.find({course_id: req.params.id}).sort('name', '1').run(function(err, notes) {
1624 req.flash( 'error', 'There are no notes in this course' );
1625 res.redirect( '/archive' );
1627 res.render( 'archive/notes', { 'notes' : notes, 'course' : req.course } );
1632 app.get( '/archive/note/:id', loadUser, function( req, res ) {
1633 ArchivedNote.findById(req.params.id, function(err, note) {
1635 req.flash( 'error', 'This is not a valid id for a note' );
1636 res.redirect( '/archive' );
1638 ArchivedCourse.findOne({id: note.course_id}, function(err, course) {
1640 req.flash( 'error', 'There is no course for this note' )
1641 res.redirect( '/archive' )
1643 res.render( 'archive/note', { 'layout' : 'notesLayout', 'note' : note, 'course': course } );
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);