codecombat/server/handlers/classroom_handler.coffee
2016-06-06 11:30:20 -07:00

96 lines
4.6 KiB
CoffeeScript

async = require 'async'
mongoose = require 'mongoose'
Handler = require '../commons/Handler'
Classroom = require './../models/Classroom'
User = require '../models/User'
sendwithus = require '../sendwithus'
utils = require '../lib/utils'
log = require 'winston'
UserHandler = require './user_handler'
ClassroomHandler = class ClassroomHandler extends Handler
modelClass: Classroom
jsonSchema: require '../../app/schemas/models/classroom.schema'
allowedMethods: ['GET', 'PUT', 'DELETE']
hasAccess: (req) ->
return false unless req.user
return true if req.method is 'GET'
req.method in @allowedMethods or req.user?.isAdmin()
hasAccessToDocument: (req, document, method=null) ->
return false unless document?
return true if req.user?.isAdmin()
return true if document.get('ownerID')?.equals req.user?._id
isGet = (method or req.method).toLowerCase() is 'get'
isMember = _.any(document.get('members') or [], (memberID) -> memberID.equals(req.user.get('_id')))
return true if isGet and isMember
false
getByRelationship: (req, res, args...) ->
return @removeMember(req, res, args[0]) if req.method is 'DELETE' and args[1] is 'members'
return @getMembersAPI(req, res, args[0]) if args[1] is 'members'
super(arguments...)
getMembersAPI: (req, res, classroomID) ->
Classroom.findById classroomID, (err, classroom) =>
return @sendDatabaseError(res, err) if err
return @sendNotFoundError(res) unless classroom
memberIDs = classroom.get('members') ? []
User.find {_id: {$in: memberIDs}}, (err, users) =>
return @sendDatabaseError(res, err) if err
cleandocs = (UserHandler.formatEntity(req, doc) for doc in users)
@sendSuccess(res, cleandocs)
removeMember: (req, res, classroomID) ->
userID = req.body.userID
return @sendBadInputError(res, 'Input must be a MongoDB ID') unless utils.isID(userID)
Classroom.findById classroomID, (err, classroom) =>
return @sendDatabaseError(res, err) if err
return @sendNotFoundError(res, 'Classroom referenced by course instance not found') unless classroom
return @sendForbiddenError(res) unless _.any(classroom.get('members'), (memberID) -> memberID.toString() is userID)
ownsClassroom = classroom.get('ownerID').equals(req.user.get('_id'))
removingSelf = userID is req.user.id
return @sendForbiddenError(res) unless ownsClassroom or removingSelf
alreadyNotInClassroom = not _.any classroom.get('members') or [], (memberID) -> memberID.toString() is userID
return @sendSuccess(res, @formatEntity(req, classroom)) if alreadyNotInClassroom
members = _.clone(classroom.get('members'))
members = (m for m in members when m.toString() isnt userID)
classroom.set('members', members)
classroom.save (err, classroom) =>
return @sendDatabaseError(res, err) if err
@sendSuccess(res, @formatEntity(req, classroom))
formatEntity: (req, doc) ->
if req.user?.isAdmin() or req.user?.get('_id').equals(doc.get('ownerID'))
return doc.toObject()
return _.omit(doc.toObject(), 'code', 'codeCamel')
get: (req, res) ->
if ownerID = req.query.ownerID
unless req.user and (req.user.isAdmin() or ownerID is req.user.id)
log.debug "classroom_handler.get: ownerID (#{ownerID}) must be yourself (#{req.user?.id})"
return @sendForbiddenError(res)
return @sendBadInputError(res, 'Bad ownerID') unless utils.isID ownerID
Classroom.find {ownerID: mongoose.Types.ObjectId(ownerID)}, (err, classrooms) =>
return @sendDatabaseError(res, err) if err
return @sendSuccess(res, (@formatEntity(req, classroom) for classroom in classrooms))
else if memberID = req.query.memberID
unless req.user and (req.user.isAdmin() or memberID is req.user.id)
log.debug "classroom_handler.get: memberID (#{memberID}) must be yourself (#{req.user?.id})"
return @sendForbiddenError(res)
return @sendBadInputError(res, 'Bad memberID') unless utils.isID memberID
Classroom.find {members: mongoose.Types.ObjectId(memberID)}, (err, classrooms) =>
return @sendDatabaseError(res, err) if err
return @sendSuccess(res, (@formatEntity(req, classroom) for classroom in classrooms))
else if code = req.query.code
code = code.toLowerCase().replace(/ /g, '')
Classroom.findOne {code: code}, (err, classroom) =>
return @sendDatabaseError(res, err) if err
return @sendNotFoundError(res) unless classroom
return @sendSuccess(res, @formatEntity(req, classroom))
else
super(arguments...)
module.exports = new ClassroomHandler()