add push registration

assets/public/client/service-worker.js

@@ -0,0 +1,9 @@
+self.addEventListener('push', function (event) {
+    if (!event.data) return;
+    const data = event.data.json();
+
+    const title = data.title || "Discord";
+    const options = { body: data.body };
+
+    event.waitUntil(self.registration.showNotification(title, options));
+});

src/api/Server.ts

@@ -18,7 +18,7 @@
 
 import { Config, ConnectionConfig, ConnectionLoader, Email, JSONReplacer, WebAuthn, initDatabase, initEvent, registerRoutes } from "@spacebar/util";
 import { Authentication, CORS, ImageProxy, BodyParser, ErrorHandler, initRateLimits, initTranslation } from "./middlewares";
-import { Request, Response, Router } from "express";
+import { Router } from "express";
 import { Server, ServerOptions } from "lambert-server";
 import morgan from "morgan";
 import path from "path";
@@ -119,7 +119,7 @@ export class SpacebarServer extends Server {
 			res.sendFile(path.join(ASSETS_FOLDER, "openapi.json"));
 		});
 
-		// current well-known location (new commit 22 nov 2025 from spacebar)
+		// current well-known location
 		app.get("/.well-known/spacebar", (req, res) => {
 			res.json({
 				api: Config.get().api.endpointPublic,
@@ -152,6 +152,7 @@ export class SpacebarServer extends Server {
 					encoding: [...(erlpackSupported ? ["etf"] : []), "json"],
 					compression: ["zstd-stream", "zlib-stream", null],
 				},
+				publicVapidKey: Config.get().webPush.publicVapidKey,
 			});
 		});
 

src/api/routes/users/@me/devices.ts

@@ -18,12 +18,61 @@
 
 import { Router, Response, Request } from "express";
 import { route } from "@spacebar/api";
+import { DeviceNotificationSchema } from "@spacebar/schemas";
+import { Config, PushSubscription, Snowflake, vapidConfigured } from "@spacebar/util";
+import { HTTPError } from "lambert-server";
+import webpush from "web-push";
 
 const router = Router({ mergeParams: true });
 
-router.post("/", route({}), (req: Request, res: Response) => {
+router.post(
-	// TODO:
+	"/",
-	res.sendStatus(204);
+	route({
-});
+		requestBody: "DeviceNotificationSchema",
+		responses: {
+			400: {
+				body: "APIErrorResponse",
+			},
+		},
+	}),
+	async (req: Request, res: Response) => {
+		const body = req.body as DeviceNotificationSchema;
+		if (body.provider != "webpush") throw new HTTPError("Provider is not supported", 400);
+
+		if (!Config.get().webPush.enabled || !vapidConfigured) throw new HTTPError("WebPush notifications are not configured", 400);
+
+		const subscription = body.webpush_subscription;
+		if (!subscription) throw new HTTPError("Subscription is missing or invalid", 400);
+
+		const endpoint = subscription.endpoint.trim();
+		try {
+			new URL(endpoint);
+		} catch {
+			throw new HTTPError("Endpoint is not a valid url", 400);
+		}
+
+		await webpush.sendNotification(subscription, JSON.stringify({ body: "Swoosh. Notifications are a go!" })).catch(async (err) => {
+			console.error("[WebPush] Failed to send test notification:", err.message);
+			throw new HTTPError("Failed to send test notification", 400);
+		});
+
+		await PushSubscription.upsert(
+			{
+				id: Snowflake.generate(),
+				user_id: req.user_id ?? null,
+				endpoint,
+				expiration_time: subscription.expirationTime != null ? Number(subscription.expirationTime) : undefined,
+				auth: subscription.keys.auth,
+				p256dh: subscription.keys.p256dh,
+			},
+			{
+				conflictPaths: ["endpoint"],
+				skipUpdateIfNoValuesChanged: true,
+			},
+		);
+
+		res.sendStatus(204);
+	},
+);
 
 export default router;

src/schemas/uncategorised/DeviceNotificationSchema.ts

@@ -0,0 +1,34 @@
+export type PushProvider = "gcm" | "apns" | "apns_internal" | "apns_voip" | "apns_internal_voip" | "webpush";
+
+export interface DeviceNotificationSchema {
+	provider: PushProvider;
+	token?: string;
+	voip_provider?: PushProvider;
+	voip_token?: string;
+	webpush_subscription?: {
+		/**
+		 * @minLength 1
+		 * @maxLength 2048
+		 */
+		endpoint: string;
+		/**
+		 * @minimum 0
+		 * @TJS-type integer
+		 */
+		expirationTime?: number;
+		keys: {
+			/**
+			 * @minLength 1
+			 * @maxLength 256
+			 */
+			p256dh: string;
+			/**
+			 * @minLength 1
+			 * @maxLength 256
+			 */
+			auth: string;
+		};
+	};
+	bypass_server_throttling_supported?: boolean;
+	bundle_id?: string;
+}

src/schemas/uncategorised/index.ts

@@ -90,3 +90,4 @@ export * from "./WebhookCreateSchema";
 export * from "./WebhookExecuteSchema";
 export * from "./WebhookUpdateSchema";
 export * from "./WidgetModifySchema";
+export * from "./DeviceNotificationSchema";

src/util/config/types/WebPushConfiguration.ts

@@ -18,7 +18,7 @@
 
 export class WebPushConfiguration {
 	enabled: boolean = false;
-	email: string | null = null;
+	subject: string | null = null;
 	publicVapidKey: string | null = null;
 	privateVapidKey: string | null = null;
 }

src/util/entities/PushSubscription.ts

@@ -12,7 +12,7 @@ export class PushSubscription extends BaseClass {
 	@ManyToOne(() => User, { onDelete: "SET NULL" })
 	user: User;
 
-	@Column({ type: "varchar", nullable: false })
+	@Column({ type: "varchar", nullable: false, unique: true })
 	endpoint: string;
 
 	@Column({ type: "bigint", nullable: true })

src/util/entities/index.ts

@@ -61,3 +61,4 @@ export * from "./UserSettingsProtos";
 export * from "./ValidRegistrationTokens";
 export * from "./VoiceState";
 export * from "./Webhook";
+export * from "./PushSubscription";

src/util/migration/postgres/1765129731012-makeEndpointUnique.ts

@@ -0,0 +1,16 @@
+import { MigrationInterface, QueryRunner } from "typeorm";
+
+export class MakeEndpointUnique1765129731012 implements MigrationInterface {
+	public async up(queryRunner: QueryRunner): Promise<void> {
+		await queryRunner.query(`
+            CREATE UNIQUE INDEX IF NOT EXISTS "idx_push_subscriptions_endpoint"
+            ON "push_subscriptions" ("endpoint");
+        `);
+	}
+
+	public async down(queryRunner: QueryRunner): Promise<void> {
+		await queryRunner.query(`
+            DROP INDEX IF EXISTS "idx_push_subscriptions_endpoint";
+        `);
+	}
+}

src/util/util/WebPush.ts

@@ -3,27 +3,38 @@ import { yellow } from "picocolors";
 import { PushSubscription } from "../entities/PushSubscription";
 import webpush, { PushSubscription as WebPushSubscription } from "web-push";
 
-let vapidConfigured = false;
+export let vapidConfigured = false;
 
 export function configurePush() {
-	const { enabled, email, publicVapidKey, privateVapidKey } = Config.get().webPush;
+	const { enabled, subject, publicVapidKey, privateVapidKey } = Config.get().webPush;
 
 	if (!enabled) {
 		vapidConfigured = false;
 		return;
 	}
 
-	if (!email || !publicVapidKey || !privateVapidKey) {
+	if (!subject || !publicVapidKey || !privateVapidKey) {
 		console.warn("[WebPush]", yellow("VAPID details are missing. Push notifications will be disabled."));
 		vapidConfigured = false;
 		return;
 	}
 
-	webpush.setVapidDetails(email, publicVapidKey, privateVapidKey);
+	webpush.setVapidDetails(subject, publicVapidKey, privateVapidKey);
 	vapidConfigured = true;
 }
 
-export function parseSubscription(result: PushSubscription): WebPushSubscription {
+export async function sendNotification(subscription: PushSubscription, title: string, body: string) {
+	return webpush.sendNotification(parseSubscription(subscription), JSON.stringify({ title, body }), { TTL: 60 }).catch(async (err) => {
+		if (err.statusCode === 404 || err.statusCode === 410) {
+			console.log(`[WebPush] Deleting subscription due to HTTP error`);
+			await PushSubscription.delete({ endpoint: subscription.endpoint });
+			return;
+		}
+		throw err;
+	});
+}
+
+function parseSubscription(result: PushSubscription): WebPushSubscription {
 	return {
 		endpoint: result.endpoint,
 		expirationTime: result.expiration_time ?? null,

src/util/util/index.ts

@@ -49,3 +49,4 @@ export * from "./NameValidation";
 export * from "../../schemas/HelperTypes";
 export * from "./extensions";
 export * from "./Random";
+export * from "./WebPush";