[MM-37984] Allow Desktop App to authenticate via external providers outside of the app on supported servers (#23795)

* WIP

* Add rate limiting for desktop token API

* Missing mocks

* Style fixes

* Update snapshots

* Maybe use an actual redirect link :P

* Refactoring for tests

* Add tests for server

* Fix lint issue

* Fix tests

* Fix lint

* Add front-end screen component

* Component logic

* Style changes

* Quick style fix

* Lint fixes

* Initial PR feedback

* Enable logging into the browser as well when completing the login process

* Refactor to push more logic to the other component

* Remove unnecessary helper code

* Fix i18n

---------

Co-authored-by: Mattermost Build <build@mattermost.com>

server/channels/store/retrylayer/retrylayer.go

@@ -30,6 +30,7 @@ type RetryLayer struct {
 	CommandStore                    store.CommandStore
 	CommandWebhookStore             store.CommandWebhookStore
 	ComplianceStore                 store.ComplianceStore
+	DesktopTokensStore              store.DesktopTokensStore
 	DraftStore                      store.DraftStore
 	EmojiStore                      store.EmojiStore
 	FileInfoStore                   store.FileInfoStore
@@ -99,6 +100,10 @@ func (s *RetryLayer) Compliance() store.ComplianceStore {
 	return s.ComplianceStore
 }
 
+func (s *RetryLayer) DesktopTokens() store.DesktopTokensStore {
+	return s.DesktopTokensStore
+}
+
 func (s *RetryLayer) Draft() store.DraftStore {
 	return s.DraftStore
 }
@@ -279,6 +284,11 @@ type RetryLayerComplianceStore struct {
 	Root *RetryLayer
 }
 
+type RetryLayerDesktopTokensStore struct {
+	store.DesktopTokensStore
+	Root *RetryLayer
+}
+
 type RetryLayerDraftStore struct {
 	store.DraftStore
 	Root *RetryLayer
@@ -3650,6 +3660,132 @@ func (s *RetryLayerComplianceStore) Update(compliance *model.Compliance) (*model
 
 }
 
+func (s *RetryLayerDesktopTokensStore) Delete(desktopToken string) error {
+
+	tries := 0
+	for {
+		err := s.DesktopTokensStore.Delete(desktopToken)
+		if err == nil {
+			return nil
+		}
+		if !isRepeatableError(err) {
+			return err
+		}
+		tries++
+		if tries >= 3 {
+			err = errors.Wrap(err, "giving up after 3 consecutive repeatable transaction failures")
+			return err
+		}
+		timepkg.Sleep(100 * timepkg.Millisecond)
+	}
+
+}
+
+func (s *RetryLayerDesktopTokensStore) DeleteByUserId(userId string) error {
+
+	tries := 0
+	for {
+		err := s.DesktopTokensStore.DeleteByUserId(userId)
+		if err == nil {
+			return nil
+		}
+		if !isRepeatableError(err) {
+			return err
+		}
+		tries++
+		if tries >= 3 {
+			err = errors.Wrap(err, "giving up after 3 consecutive repeatable transaction failures")
+			return err
+		}
+		timepkg.Sleep(100 * timepkg.Millisecond)
+	}
+
+}
+
+func (s *RetryLayerDesktopTokensStore) DeleteOlderThan(minCreatedAt int64) error {
+
+	tries := 0
+	for {
+		err := s.DesktopTokensStore.DeleteOlderThan(minCreatedAt)
+		if err == nil {
+			return nil
+		}
+		if !isRepeatableError(err) {
+			return err
+		}
+		tries++
+		if tries >= 3 {
+			err = errors.Wrap(err, "giving up after 3 consecutive repeatable transaction failures")
+			return err
+		}
+		timepkg.Sleep(100 * timepkg.Millisecond)
+	}
+
+}
+
+func (s *RetryLayerDesktopTokensStore) GetUserId(desktopToken string, minCreatedAt int64) (string, error) {
+
+	tries := 0
+	for {
+		result, err := s.DesktopTokensStore.GetUserId(desktopToken, minCreatedAt)
+		if err == nil {
+			return result, nil
+		}
+		if !isRepeatableError(err) {
+			return result, err
+		}
+		tries++
+		if tries >= 3 {
+			err = errors.Wrap(err, "giving up after 3 consecutive repeatable transaction failures")
+			return result, err
+		}
+		timepkg.Sleep(100 * timepkg.Millisecond)
+	}
+
+}
+
+func (s *RetryLayerDesktopTokensStore) Insert(desktopToken string, createdAt int64, userId *string) error {
+
+	tries := 0
+	for {
+		err := s.DesktopTokensStore.Insert(desktopToken, createdAt, userId)
+		if err == nil {
+			return nil
+		}
+		if !isRepeatableError(err) {
+			return err
+		}
+		tries++
+		if tries >= 3 {
+			err = errors.Wrap(err, "giving up after 3 consecutive repeatable transaction failures")
+			return err
+		}
+		timepkg.Sleep(100 * timepkg.Millisecond)
+	}
+
+}
+
+func (s *RetryLayerDesktopTokensStore) SetUserId(desktopToken string, minCreatedAt int64, userId string) error {
+
+	tries := 0
+	for {
+		err := s.DesktopTokensStore.SetUserId(desktopToken, minCreatedAt, userId)
+		if err == nil {
+			return nil
+		}
+		if !isRepeatableError(err) {
+			return err
+		}
+		tries++
+		if tries >= 3 {
+			err = errors.Wrap(err, "giving up after 3 consecutive repeatable transaction failures")
+			return err
+		}
+		timepkg.Sleep(100 * timepkg.Millisecond)
+	}
+
+}
+
 func (s *RetryLayerDraftStore) Delete(userID string, channelID string, rootID string) error {
 
 	tries := 0
@@ -14853,6 +14989,7 @@ func New(childStore store.Store) *RetryLayer {
 	newStore.CommandStore = &RetryLayerCommandStore{CommandStore: childStore.Command(), Root: &newStore}
 	newStore.CommandWebhookStore = &RetryLayerCommandWebhookStore{CommandWebhookStore: childStore.CommandWebhook(), Root: &newStore}
 	newStore.ComplianceStore = &RetryLayerComplianceStore{ComplianceStore: childStore.Compliance(), Root: &newStore}
+	newStore.DesktopTokensStore = &RetryLayerDesktopTokensStore{DesktopTokensStore: childStore.DesktopTokens(), Root: &newStore}
 	newStore.DraftStore = &RetryLayerDraftStore{DraftStore: childStore.Draft(), Root: &newStore}
 	newStore.EmojiStore = &RetryLayerEmojiStore{EmojiStore: childStore.Emoji(), Root: &newStore}
 	newStore.FileInfoStore = &RetryLayerFileInfoStore{FileInfoStore: childStore.FileInfo(), Root: &newStore}

server/channels/store/retrylayer/retrylayer_test.go

@@ -59,6 +59,7 @@ func genStore() *mocks.Store {
 	mock.On("PostAcknowledgement").Return(&mocks.PostAcknowledgementStore{})
 	mock.On("PostPersistentNotification").Return(&mocks.PostPersistentNotificationStore{})
 	mock.On("TrueUpReview").Return(&mocks.TrueUpReviewStore{})
+	mock.On("DesktopTokens").Return(&mocks.DesktopTokensStore{})
 	return mock
 }