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Merge pull request #12 from overleaf/spd-force-race
Handle duplicate-notification race condition when using forceCreate
This commit is contained in:
Simon Detheridge
GitHub
commit
20dbbbeb58
2 changed files with 61 additions and 67 deletions
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@ -15,42 +15,35 @@ module.exports = Notifications =
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callback err, notifications
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_checkExistingNotifcationAndOverride : (user_id, notification, callback)->
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self = @
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_countExistingNotifications : (user_id, notification, callback = (err, count)->)->
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query =
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user_id: ObjectId(user_id)
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key: notification.key
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db.notifications.count query, (err, number)->
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if number > 0 and !notification.forceCreate
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logger.log number:number, user_id:user_id, key:notification.key, "alredy has notification key for user"
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return callback(number)
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else if number > 0 and notification.forceCreate
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self.deleteNotificationByKeyOnly notification.key, callback
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else
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callback()
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db.notifications.count query, (err, count)->
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return callback(err) if err?
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callback(null, count)
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addNotification: (user_id, notification, callback)->
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@_checkExistingNotifcationAndOverride user_id, notification, (err)->
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if err?
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callback err
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else
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doc =
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user_id: ObjectId(user_id)
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key: notification.key
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messageOpts: notification.messageOpts
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templateKey: notification.templateKey
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# TTL index on the optional `expires` field, which should arrive as an iso date-string, corresponding to
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# a datetime in the future when the document should be automatically removed.
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# in Mongo, TTL indexes only work on date fields, and ignore the document when that field is missing
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# see `README.md` for instruction on creating TTL index
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if notification.expires?
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try
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doc.expires = new Date(notification.expires)
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_testValue = doc.expires.toISOString()
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catch err
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logger.error {user_id, expires: notification.expires}, "error converting `expires` field to Date"
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return callback(err)
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db.notifications.insert(doc, callback)
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@_countExistingNotifications user_id, notification, (err, count)->
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return callback(err) if err?
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return callback() unless count == 0 || notification.forceCreate
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doc =
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user_id: ObjectId(user_id)
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key: notification.key
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messageOpts: notification.messageOpts
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templateKey: notification.templateKey
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# TTL index on the optional `expires` field, which should arrive as an iso date-string, corresponding to
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# a datetime in the future when the document should be automatically removed.
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# in Mongo, TTL indexes only work on date fields, and ignore the document when that field is missing
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# see `README.md` for instruction on creating TTL index
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if notification.expires?
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try
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doc.expires = new Date(notification.expires)
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_testValue = doc.expires.toISOString()
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catch err
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logger.error {user_id, expires: notification.expires}, "error converting `expires` field to Date"
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return callback(err)
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db.notifications.update({user_id: doc.user_id, key: notification.key}, doc, {upsert: true}, callback)
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removeNotificationId: (user_id, notification_id, callback)->
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searchOps =
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@ -29,14 +29,17 @@ describe 'Notifications Tests', ->
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remove: @removeStub
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@mongojs.ObjectId = ObjectId
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@notifications = SandboxedModule.require modulePath, requires:
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'logger-sharelatex': {
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log:()->
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error:()->
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}
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'settings-sharelatex': {}
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'mongojs':@mongojs
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'metrics-sharelatex': {timeAsyncMethod: sinon.stub()}
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@notifications = SandboxedModule.require modulePath,
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requires:
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'logger-sharelatex': {
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log:()->
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error:()->
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}
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'settings-sharelatex': {}
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'mongojs':@mongojs
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'metrics-sharelatex': {timeAsyncMethod: sinon.stub()}
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globals:
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console: console
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@stubbedNotification = {user_id: ObjectId(user_id), key:"notification-key", messageOpts:"some info", templateKey:"template-key"}
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@stubbedNotificationArray = [@stubbedNotification]
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@ -63,33 +66,34 @@ describe 'Notifications Tests', ->
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messageOpts:"some info",
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templateKey:"template-key"
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}
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@notifications.deleteNotificationByKeyOnly = sinon.stub()
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@notifications.deleteNotificationByKeyOnly.callsArgWith(1, null)
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@expectedQuery = {
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user_id: @stubbedNotification.user_id,
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key:"notification-key",
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}
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@updateStub.yields()
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@countStub.yields(null, 0)
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it 'should insert the notification into the collection', (done)->
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@insertStub.callsArgWith(1, null)
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@countStub.callsArgWith(1, null, 0)
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@notifications.addNotification user_id, @stubbedNotification, (err)=>
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assert.deepEqual(@insertStub.lastCall.args[0], @expectedDocument)
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expect(err).not.exists
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sinon.assert.calledWith(@updateStub, @expectedQuery, @expectedDocument, { upsert: true })
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done()
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it 'should fail insert of existing notification key', (done)->
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@insertStub.callsArgWith(1, null)
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@countStub.callsArgWith(1, null, 1)
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@notifications.addNotification user_id, @stubbedNotification, (err)=>
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@insertStub.calledWith(@expectedDocument).should.equal false
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done()
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describe 'when there is an existing notification', (done) ->
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beforeEach ->
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@countStub.yields(null, 1)
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describe "when key already exists but forceCreate is passed", (done)->
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it 'should fail to insert', (done)->
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@notifications.addNotification user_id, @stubbedNotification, (err)=>
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expect(err).not.exists
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sinon.assert.notCalled(@updateStub)
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done()
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it "should delete the old key and insert the new one", (done) ->
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@insertStub.callsArgWith(1, null)
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@countStub.callsArgWith(1, null, 1)
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it "should update the key if forceCreate is true", (done) ->
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@stubbedNotification.forceCreate = true
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@notifications.addNotification user_id, @stubbedNotification, (err)=>
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assert.deepEqual(@insertStub.lastCall.args[0], @expectedDocument)
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@notifications.deleteNotificationByKeyOnly.calledWith(@stubbedNotification.key).should.equal true
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expect(err).not.exists
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sinon.assert.calledWith(@updateStub, @expectedQuery, @expectedDocument, { upsert: true })
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done()
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describe 'when the notification is set to expire', () ->
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@ -108,14 +112,15 @@ describe 'Notifications Tests', ->
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templateKey:"template-key",
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expires: new Date(@stubbedNotification.expires),
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}
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@expectedQuery = {
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user_id: @stubbedNotification.user_id,
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key:"notification-key",
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}
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it 'should add an `expires` Date field to the document', (done)->
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@insertStub.callsArgWith(1, null)
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@countStub.callsArgWith(1, null, 0)
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@notifications.addNotification user_id, @stubbedNotification, (err)=>
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@insertStub.callCount.should.equal 1
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assert.deepEqual(@insertStub.lastCall.args[0], @expectedDocument)
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expect(err).not.exists
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sinon.assert.calledWith(@updateStub, @expectedQuery, @expectedDocument, { upsert: true })
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done()
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describe 'when the notification has a nonsensical expires field', () ->
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@ -136,13 +141,9 @@ describe 'Notifications Tests', ->
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}
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it 'should produce an error', (done)->
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@insertStub.callsArgWith(1, null)
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@countStub.callsArgWith(1, null, 0)
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@notifications.addNotification user_id, @stubbedNotification, (err)=>
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(err instanceof Error).should.equal true
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@insertStub.callCount.should.equal 0
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@insertStub.calledWith(@expectedDocument).should.equal false
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sinon.assert.notCalled(@updateStub)
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done()
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describe 'removeNotificationId', ->
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