Update error handling on backend

services/web/app/coffee/Features/User/UserController.coffee

@@ -13,6 +13,7 @@ UserSessionsManager = require("./UserSessionsManager")
 UserUpdater = require("./UserUpdater")
 SudoModeHandler = require('../SudoMode/SudoModeHandler')
 settings = require "settings-sharelatex"
+Errors = require "../Errors/Errors"
 
 module.exports = UserController =
 
@@ -100,7 +101,7 @@ module.exports = UserController =
 					UserUpdater.changeEmailAddress user_id, newEmail, (err)->
 						if err?
 							logger.err err:err, user_id:user_id, newEmail:newEmail, "problem updaing users email address"
-							if err.message == "alread_exists"
+							if err instanceof Errors.EmailExistsError
 								message = req.i18n.translate("email_already_registered")
 							else
 								message = req.i18n.translate("problem_changing_email_address")

services/web/app/coffee/Features/User/UserEmailsController.coffee

@@ -26,7 +26,8 @@ module.exports = UserEmailsController =
 			role: req.body.role
 			department: req.body.department
 		UserUpdater.addEmailAddress userId, email, affiliationOptions, (error)->
-			return next(error) if error?
+			if error?
+				return UserEmailsController._handleEmailError error, req, res, next
 			UserEmailsConfirmationHandler.sendConfirmationEmail userId, email, (err) ->
 				return next(error) if error?
 				res.sendStatus 204
@@ -49,15 +50,7 @@ module.exports = UserEmailsController =
 
 		UserUpdater.updateV1AndSetDefaultEmailAddress userId, email, (error)->
 			if error?
-				if error instanceof Errors.UnconfirmedEmailError
-					return res.sendStatus 409
-				else if error instanceof Errors.EmailExistsError
-					return res.status(409).json {
-						error:
-							message: "The email '#{email}' is already in use by another account"
-					}
-				else
-					return next(error)
+				return UserEmailsController._handleEmailError error, req, res, next
 			else
 				return res.sendStatus 200
 
@@ -105,3 +98,15 @@ module.exports = UserEmailsController =
 					next(error)
 			else
 				res.sendStatus 200
+
+	_handleEmailError: (error, req, res, next) ->
+		if error instanceof Errors.UnconfirmedEmailError
+			return res.status(409).json {
+				message: 'email must be confirmed'
+			}
+		else if error instanceof Errors.EmailExistsError
+			return res.status(409).json {
+				message: req.i18n.translate("email_already_registered")
+			}
+		else
+			return next(error)

services/web/app/coffee/Features/User/UserGetter.coffee

@@ -4,6 +4,7 @@ logger = require('logger-sharelatex')
 db = mongojs.db
 ObjectId = mongojs.ObjectId
 { getAffiliations } = require("./UserAffiliationsManager")
+Errors = require("../Errors/Errors")
 
 module.exports = UserGetter =
 	getUser: (query, projection, callback = (error, user) ->) ->
@@ -77,7 +78,7 @@ module.exports = UserGetter =
 	# check for duplicate email address. This is also enforced at the DB level
 	ensureUniqueEmailAddress: (newEmail, callback) ->
 		@getUserByAnyEmail newEmail, (error, user) ->
-			return callback(message: 'alread_exists') if user?
+			return callback(new Errors.EmailExistsError('alread_exists')) if user?
 			callback(error)
 
 decorateFullEmails = (defaultEmail, emailsData, affiliationsData) ->

services/web/app/coffee/Features/User/UserUpdater.coffee

@@ -136,7 +136,9 @@ module.exports = UserUpdater =
 					user: Settings.apis.v1.user
 					pass: Settings.apis.v1.pass
 					sendImmediately: true
-				json: { email: newEmail },
+				json:
+					user:
+						email: newEmail
 				timeout: 5 * 1000
 			}, (error, response, body) ->
 				if error?

services/web/test/acceptance/coffee/UserEmailsTests.coffee

@@ -470,8 +470,8 @@ describe "UserEmails", ->
 					}, (error, response, body) =>
 						return done(error) if error?
 						expect(response.statusCode).to.equal 409
-						expect(body.error).to.deep.equal {
-							message: "The email 'exists-in-v1@example.com' is already in use by another account"
+						expect(body).to.deep.equal {
+							message: "This email is already registered"
 						}
 						cb()
 				(cb) =>

services/web/test/acceptance/coffee/helpers/MockV1Api.coffee

@@ -69,7 +69,7 @@ module.exports = MockV1Api =
 			res.json []
 
 		app.put '/api/v1/sharelatex/users/:id/email', (req, res, next) =>
-			{ email } = req.body
+			{ email } = req.body?.user
 			if email in @existingEmails
 				return res.sendStatus 409
 			else

services/web/test/unit/coffee/User/UserControllerTests.coffee

@@ -9,6 +9,7 @@ MockResponse = require "../helpers/MockResponse"
 MockRequest = require "../helpers/MockRequest"
 ObjectId = require("mongojs").ObjectId
 assert = require("assert")
+Errors = require "../../../../app/js/Features/Errors/Errors"
 
 describe "UserController", ->
 	beforeEach ->
@@ -81,6 +82,7 @@ describe "UserController", ->
 				log:->
 				err:->
 			"metrics-sharelatex": inc:->
+			"../Errors/Errors": Errors
 
 		@res =
 			send: sinon.stub()

services/web/test/unit/coffee/User/UserGetterTests.coffee

@@ -5,6 +5,7 @@ path = require('path')
 sinon = require('sinon')
 modulePath = path.join __dirname, "../../../../app/js/Features/User/UserGetter"
 expect = require("chai").expect
+Errors = require "../../../../app/js/Features/Errors/Errors"
 
 describe "UserGetter", ->
 
@@ -30,6 +31,7 @@ describe "UserGetter", ->
 			'settings-sharelatex': settings
 			'./UserAffiliationsManager':
 				getAffiliations: @getAffiliations
+			"../Errors/Errors": Errors
 
 	describe "getUser", ->
 		it "should get user", (done)->
@@ -150,6 +152,7 @@ describe "UserGetter", ->
 			@UserGetter.getUserByAnyEmail.callsArgWith(1, null, @fakeUser)
 			@UserGetter.ensureUniqueEmailAddress @newEmail, (err)=>
 				should.exist(err)
+				expect(err).to.be.an.instanceof(Errors.EmailExistsError)
 				err.message.should.equal 'alread_exists'
 				done()