unlink dropbox when a user cancels

services/web/app/coffee/Features/Subscription/SubscriptionHandler.coffee

@@ -6,6 +6,7 @@ logger = require('logger-sharelatex')
 SubscriptionUpdater = require("./SubscriptionUpdater")
 LimitationsManager = require('./LimitationsManager')
 EmailHandler = require("../Email/EmailHandler")
+DropboxHandler = require("../Dropbox/DropboxHandler")
 
 module.exports =
 
@@ -49,7 +50,8 @@ module.exports =
 					ONE_HOUR_IN_MS = 1000 * 60 * 60
 					setTimeout (-> EmailHandler.sendEmail "canceledSubscription", emailOpts
 					), ONE_HOUR_IN_MS
-					callback()
+					DropboxHandler.unlinkAccount user._id, ->
+						callback()
 			else
 				callback()
 

services/web/test/UnitTests/coffee/Subscription/SubscriptionHandlerTests.coffee

@@ -44,6 +44,9 @@ describe "Subscription Handler sanboxed", ->
 			reactivateSubscription: sinon.stub().callsArgWith(1)
 			redeemCoupon:sinon.stub().callsArgWith(2)
 
+		@DropboxHandler =
+			unlinkAccount:sinon.stub().callsArgWith(1)
+
 		@SubscriptionUpdater = 
 			syncSubscription: sinon.stub().callsArgWith(2)
 			startFreeTrial: sinon.stub().callsArgWith(1)
@@ -62,6 +65,7 @@ describe "Subscription Handler sanboxed", ->
 			"logger-sharelatex":{log:->}
 			'./LimitationsManager':@LimitationsManager
 			"../Email/EmailHandler":@EmailHandler
+			"../Dropbox/DropboxHandler":@DropboxHandler
 
 		@SubscriptionHandler.syncSubscriptionToUser = sinon.stub().callsArgWith(2)
 
@@ -152,6 +156,11 @@ describe "Subscription Handler sanboxed", ->
 				@RecurlyWrapper.cancelSubscription.called.should.equal true
 				@RecurlyWrapper.cancelSubscription.calledWith(@subscription.recurlySubscription_id).should.equal true
 
+
+			it "should unlink dropbox", ->
+				@DropboxHandler.unlinkAccount.called.should.equal true
+				@DropboxHandler.unlinkAccount.calledWith(@user._id).should.equal true
+
 	describe "reactiveRecurlySubscription", ->
 		describe "with a user without a subscription", ->
 			beforeEach (done) ->