add notifications backend service

api/proto/teleport/notifications/v1/notifications.proto

@@ -1,6 +1,6 @@
 /*
  * Teleport
- * Copyright (C) 2023  Gravitational, Inc.
+ * Copyright (C) 2024  Gravitational, Inc.
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU Affero General Public License as published by
@@ -34,7 +34,7 @@ message Notification {
   string sub_kind = 2;
   // version is the resource version.
   string version = 3;
-  // metadata is the notification's metadata. This contains the notification's title, description, labels, and expiry.
+  // metadata is the notification's metadata. This contains the notification's labels, and expiry. All custom notification metadata should be stored in labels.
   teleport.header.v1.Metadata metadata = 4;
   // spec is the notification specification.
   NotificationSpec spec = 5;
@@ -146,15 +146,17 @@ message UserLastSeenNotification {
   teleport.header.v1.Metadata metadata = 4;
   // UserLastSeenNotificationSpec is the user last seen notification item's specification.
   UserLastSeenNotificationSpec spec = 5;
-  // time is the timestamp of this user's last seen notification, it contains the timestamp of the notification which will be dynamically modified.
-  UserLastSeenNotificationTime time = 6;
+  reserved 6;
+  reserved "time";
+  // status is the timestamp of this user's last seen notification, it contains the timestamp of the notification which will be dynamically modified.
+  UserLastSeenNotificationStatus status = 7;
 }
 
 // UserLastSeenNotificationSpec is a user last seen notification specification.
 message UserLastSeenNotificationSpec {}
 
-// UserLastSeenNotificationTime is the timestamp of this user's last seen notification, it contains the timestamp of the notification which will be dynamically modified.
-message UserLastSeenNotificationTime {
+// UserLastSeenNotificationStatus is the timestamp of this user's last seen notification, it contains the timestamp of the notification which will be dynamically modified.
+message UserLastSeenNotificationStatus {
   // last_seen_time is the timestamp of the last notification that the user has seen.
   google.protobuf.Timestamp last_seen_time = 1;
 }

api/proto/teleport/notifications/v1/notifications_service.proto

@@ -1,6 +1,6 @@
 /*
  * Teleport
- * Copyright (C) 2023  Gravitational, Inc.
+ * Copyright (C) 2024  Gravitational, Inc.
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU Affero General Public License as published by
@@ -31,31 +31,26 @@ service NotificationService {
   rpc CreateUserNotification(CreateUserNotificationRequest) returns (Notification);
   // DeleteUserNotification deletes a user-specific notification.
   rpc DeleteUserNotification(DeleteUserNotificationRequest) returns (google.protobuf.Empty);
-  // ListUserNotifications returns a page of user-specific notifications.
-  rpc ListUserNotifications(ListUserNotificationsRequest) returns (ListUserNotificationsResponse);
 
   // CreateGlobalNotification creates a global notification.
   rpc CreateGlobalNotification(CreateGlobalNotificationRequest) returns (GlobalNotification);
   // DeleteGlobalNotification deletes a global notification.
   rpc DeleteGlobalNotification(DeleteGlobalNotificationRequest) returns (google.protobuf.Empty);
-  // ListGlobalNotifications returns a page of global notifications.
-  rpc ListGlobalNotifications(ListGlobalNotificationsRequest) returns (ListGlobalNotificationsResponse);
 
-  // CreateUserNotificationState creates a user notification state which records whether a user has clicked on or dismissed a notification.
-  rpc CreateUserNotificationState(CreateUserNotificationStateRequest) returns (UserNotificationState);
-  // UpdateUserNotificationState updates a user notification state to record whether a user has clicked on or dismissed a notification.
-  rpc UpdateUserNotificationState(UpdateUserNotificationStateRequest) returns (UserNotificationState);
+  // ListUserNotificationsRequest is the request for listing a user's notifications, which include user-specific ones as well as global notifications that match them.
+  rpc ListUserNotifications(ListUserNotificationsRequest) returns (ListUserNotificationsResponse);
+
+  // UpsertUserNotificationState creates or updates a user notification state which records whether the user has clicked on or dismissed a notification.
+  rpc UpsertUserNotificationState(UpsertUserNotificationStateRequest) returns (UserNotificationState);
   // DeleteUserNotificationState deletes a user notification state object.
   rpc DeleteUserNotificationState(DeleteUserNotificationStateRequest) returns (google.protobuf.Empty);
-  // ListUserNotificationStates returns a page of user notification states.
+  // ListUserNotificationStates returns a page of a user's notification states.
   rpc ListUserNotificationStates(ListUserNotificationStatesRequest) returns (ListUserNotificationStatesResponse);
 
   // GetUserLastSeenNotification returns a user's last seen notification item.
   rpc GetUserLastSeenNotification(GetUserLastSeenNotificationRequest) returns (UserLastSeenNotification);
-  // CreateUserLastSeenNotification creates a user's last seen notification item.
-  rpc CreateUserLastSeenNotification(CreateUserLastSeenNotificationRequest) returns (UserLastSeenNotification);
-  // UpdateUserLastSeenNotification updates a user's last seen notification item.
-  rpc UpdateUserLastSeenNotification(UpdateUserLastSeenNotificationRequest) returns (UserLastSeenNotification);
+  // UpsertUserLastSeenNotification creates or updates a user's last seen notification item.
+  rpc UpsertUserLastSeenNotification(UpsertUserLastSeenNotificationRequest) returns (UserLastSeenNotification);
   // DeleteUserLastSeenNotification deletes a user's last seen notification item.
   rpc DeleteUserLastSeenNotification(DeleteUserLastSeenNotificationRequest) returns (google.protobuf.Empty);
 }
@@ -76,7 +71,7 @@ message DeleteUserNotificationRequest {
   string notification_id = 2;
 }
 
-// ListUserNotificationsRequest is the request for listing a user's user-specific notifications.
+// ListUserNotificationsRequest is the request for listing a user's notifications, which include user-specific ones as well as global notifications that match them.
 message ListUserNotificationsRequest {
   // username is the username of the user the notifications to list are for.
   string username = 1;
@@ -106,24 +101,8 @@ message DeleteGlobalNotificationRequest {
   string notification_id = 1;
 }
 
-// ListGlobalNotificationsRequest is the request for listing global notifications.
-message ListGlobalNotificationsRequest {
-  // page_size is the size of the page to return.
-  int32 page_size = 1;
-  // page_token is the next_page_token value returned from a previous ListGlobalNotifications request, if any.
-  string page_token = 2;
-}
-
-// ListGlobalNotificationsResponse is the response from listing global notifications.
-message ListGlobalNotificationsResponse {
-  // global_notifications is the global notification items returned.
-  repeated GlobalNotification global_notifications = 1;
-  // next_page_token is the token to retrieve the next page of results, this will be empty if there are no more results.
-  string next_page_token = 2;
-}
-
-// CreateUserNotificationStateRequest is the request for creating a user notification state.
-message CreateUserNotificationStateRequest {
+// UpsertUserNotificationStateRequest is the request for creating or updating a user notification state.
+message UpsertUserNotificationStateRequest {
   // username is the username of the user.
   string username = 1;
   // user_notification_state is the user notification state to create.
@@ -166,16 +145,8 @@ message GetUserLastSeenNotificationRequest {
   string username = 1;
 }
 
-// CreateUserLastSeenNotification is the request for creating a user's last seen notification item.
-message CreateUserLastSeenNotificationRequest {
-  // username is the username of the user.
-  string username = 1;
-  // user_notification_state is the user last seen notification item to create.
-  UserLastSeenNotification user_last_seen_notification = 2;
-}
-
-// UpdateUserLastSeenNotificationRequest is the request for updating a user's last seen notification.
-message UpdateUserLastSeenNotificationRequest {
+// UpsertUserLastSeenNotificationRequest is the request for creating or updating a user's last seen notification.
+message UpsertUserLastSeenNotificationRequest {
   // username is the username of the user.
   string username = 1;
   // user_notification_state is the udpated user last seen notification item.

api/types/constants.go

@@ -503,6 +503,15 @@ const (
 	// KindSecurityReportCostLimiter const limiter
 	KindSecurityReportCostLimiter = "security_report_cost_limiter"
 
+	// KindNotification is a notification resource.
+	KindNotification = "notification"
+	// KindGlobalNotification is a global notification resource.
+	KindGlobalNotification = "global_notification"
+	// KindUserLastSeenNotification is a resource which stores the timestamp of a user's last seen notification.
+	KindUserLastSeenNotification = "user_last_seen_notification"
+	// KindUserNotificationState is a resource which tracks whether a user has clicked on or dismissed a notification.
+	KindUserNotificationState = "user_notification_state"
+
 	// V7 is the seventh version of resources.
 	V7 = "v7"
 

lib/services/local/generic/generic_wrapper.go

@@ -18,6 +18,7 @@ package generic
 
 import (
 	"context"
+	"strings"
 
 	"github.com/gravitational/trace"
 
@@ -62,6 +63,24 @@ type ServiceWrapper[T types.ResourceMetadata] struct {
 	service *Service[resourceMetadataAdapter[T]]
 }
 
+// WithPrefix will return a service wrapper with the given parts appended to the backend prefix.
+func (s ServiceWrapper[T]) WithPrefix(parts ...string) *ServiceWrapper[T] {
+	if len(parts) == 0 {
+		return &s
+	}
+
+	return &ServiceWrapper[T]{
+		service: &Service[resourceMetadataAdapter[T]]{
+			backend:       s.service.backend,
+			resourceKind:  s.service.resourceKind,
+			pageLimit:     s.service.pageLimit,
+			backendPrefix: strings.Join(append([]string{s.service.backendPrefix}, parts...), string(backend.Separator)),
+			marshalFunc:   s.service.marshalFunc,
+			unmarshalFunc: s.service.unmarshalFunc,
+		},
+	}
+}
+
 // UpsertResource upserts a resource.
 func (s ServiceWrapper[T]) UpsertResource(ctx context.Context, resource T) (T, error) {
 	adapter, err := s.service.UpsertResource(ctx, newResourceMetadataAdapter(resource))
@@ -91,6 +110,12 @@ func (s ServiceWrapper[T]) DeleteResource(ctx context.Context, name string) erro
 	return trace.Wrap(s.service.DeleteResource(ctx, name))
 }
 
+// DeleteAllResources removes all resources.
+func (s ServiceWrapper[T]) DeleteAllResources(ctx context.Context) error {
+	startKey := backend.ExactKey(s.service.backendPrefix)
+	return trace.Wrap(s.service.backend.DeleteRange(ctx, startKey, backend.RangeEnd(startKey)))
+}
+
 // ListResources returns a paginated list of resources.
 func (s ServiceWrapper[T]) ListResources(ctx context.Context, pageSize int, pageToken string) ([]T, string, error) {
 	adapters, nextToken, err := s.service.ListResources(ctx, pageSize, pageToken)

lib/services/local/generic/generic_wrapper_test.go

@@ -224,3 +224,31 @@ func TestGenericWrapperCRUD(t *testing.T) {
 	err = service.DeleteResource(ctx, "doesnotexist")
 	require.True(t, trace.IsNotFound(err))
 }
+
+// TestGenericWrapperWithPrefix tests the withPrefix method of the generic service wrapper.
+func TestGenericWrapperWithPrefix(t *testing.T) {
+	ctx := context.Background()
+
+	memBackend, err := memory.New(memory.Config{
+		Context: ctx,
+		Clock:   clockwork.NewFakeClock(),
+	})
+	require.NoError(t, err)
+
+	const initialBackendPrefix = "initial_prefix"
+	const additionalBackendPrefix = "additional_prefix"
+
+	service, err := NewServiceWrapper[*testResource153](memBackend,
+		"generic resource",
+		initialBackendPrefix,
+		marshalResource153,
+		unmarshalResource153)
+	require.NoError(t, err)
+
+	// Verify that the service's backend prefix matches the initial backend prefix.
+	require.Equal(t, initialBackendPrefix, service.service.backendPrefix)
+
+	// Verify that withPrefix appends the the additional prefix.
+	serviceWithPrefix := service.WithPrefix(additionalBackendPrefix)
+	require.Equal(t, "initial_prefix/additional_prefix", serviceWithPrefix.service.backendPrefix)
+}