@liveblocks/node - npm Package Compare versions

Comparing version 0.19.9-beta3 to 0.19.9-beta4

dist/index.d.ts

@@ -0,1 +1,101 @@
+import { IncomingHttpHeaders } from 'http';
+
+declare class WebhookHandler {
+    private secretBuffer;
+    private static secretPrefix;
+    constructor(
+    /**
+     * The signing secret provided on the dashboard's webhooks page
+     * @example "whsec_wPbvQ+u3VtN2e2tRPDKchQ1tBZ3svaHLm"
+     */
+    secret: string);
+    /**
+     * Verifies a webhook request and returns the event
+     */
+    verifyRequest(request: WebhookRequest): WebhookEvent;
+    /**
+     * Verifies the headers and returns the webhookId, timestamp and rawSignatures
+     */
+    private verifyHeaders;
+    /**
+     * Signs the content with the secret
+     * @param content
+     * @returns `string`
+     */
+    private sign;
+    /**
+     * Verifies that the timestamp is not too old or in the future
+     */
+    private verifyTimestamp;
+    /**
+     * Ensures that the event is a known event type
+     * or throws and prompts the user to upgrade to a higher version of @liveblocks/node
+     */
+    private verifyWebhookEventType;
+}
+declare type WebhookRequest = {
+    /**
+     * Headers of the request
+     * @example
+     * {
+     *  "webhook-id": "123",
+     *  "webhook-timestamp": "1614588800000",
+     *  "webhook-signature": "v1,bm9ldHUjKzFob2VudXRob2VodWUzMjRvdWVvdW9ldQo= v2,MzJsNDk4MzI0K2VvdSMjMTEjQEBAQDEyMzMzMzEyMwo="
+     * }
+     */
+    headers: IncomingHttpHeaders;
+    /**
+     * Raw body of the request, do not parse it
+     * @example '{"type":"storageUpdated","data":{"roomId":"my-room-id","appId":"my-app-id","updatedAt":"2021-03-01T12:00:00.000Z"}}'
+     */
+    rawBody: string;
+};
+declare type WebhookEvent = StorageUpdatedEvent | UserEnteredEvent | UserLeftEvent;
+declare type StorageUpdatedEvent = {
+    type: "storageUpdated";
+    data: {
+        roomId: string;
+        appId: string;
+        /**
+         * ISO 8601 datestring
+         * @example "2021-03-01T12:00:00.000Z"
+         */
+        updatedAt: string;
+    };
+};
+declare type UserEnteredEvent = {
+    type: "userEntered";
+    data: {
+        appId: string;
+        roomId: string;
+        connectionId: number;
+        userId: string | null;
+        userInfo: Record<string, unknown> | null;
+        /**
+         * ISO 8601 datestring
+         * @example "2021-03-01T12:00:00.000Z"
+         * @description The time when the user entered the room.
+         */
+        enteredAt: string;
+        numActiveUsers: number;
+    };
+};
+declare type UserLeftEvent = {
+    type: "userLeft";
+    data: {
+        appId: string;
+        roomId: string;
+        connectionId: number;
+        userId: string | null;
+        userInfo: Record<string, unknown> | null;
+        /**
+         * ISO 8601 datestring
+         * @example "2021-03-01T12:00:00.000Z"
+         * @description The time when the user left the room.
+         */
+        leftAt: string;
+        numActiveUsers: number;
+    };
+};
+
 declare type AuthorizeOptions = {
@@ -50,2 +150,2 @@ /**
 
-export { authorize };
+export { StorageUpdatedEvent, UserEnteredEvent, UserLeftEvent, WebhookEvent, WebhookHandler, WebhookRequest, authorize };

dist/index.js

@@ -24,2 +24,80 @@ "use strict";Object.defineProperty(exports, "__esModule", {value: true}); function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }var __async = (__this, __arguments, generator) => {
 var _nodefetch = require('node-fetch'); var _nodefetch2 = _interopRequireDefault(_nodefetch);
+
+// src/webhooks.ts
+var _crypto = require('crypto'); var _crypto2 = _interopRequireDefault(_crypto);
+var _WebhookHandler = class {
+  constructor(secret) {
+    if (!secret)
+      throw new Error("Secret is required");
+    if (typeof secret !== "string")
+      throw new Error("Secret must be a string");
+    if (secret.startsWith(_WebhookHandler.secretPrefix) === false)
+      throw new Error("Invalid secret, must start with whsec_");
+    const secretKey = secret.slice(_WebhookHandler.secretPrefix.length);
+    this.secretBuffer = Buffer.from(secretKey, "base64");
+  }
+  verifyRequest(request) {
+    const { webhookId, timestamp, rawSignatures } = this.verifyHeaders(
+      request.headers
+    );
+    this.verifyTimestamp(timestamp);
+    const signature = this.sign(`${webhookId}.${timestamp}.${request.rawBody}`);
+    const expectedSignatures = rawSignatures.split(" ").map((rawSignature) => {
+      const [, parsedSignature] = rawSignature.split(",");
+      return parsedSignature;
+    }).filter(isNotUndefined);
+    if (expectedSignatures.includes(signature) === false)
+      throw new Error(
+        `Invalid signature, expected one of ${expectedSignatures}, got ${signature}`
+      );
+    const event = JSON.parse(request.rawBody);
+    this.verifyWebhookEventType(event);
+    return event;
+  }
+  verifyHeaders(headers) {
+    const sanitizedHeaders = {};
+    Object.keys(headers).forEach((key) => {
+      sanitizedHeaders[key.toLowerCase()] = headers[key];
+    });
+    const webhookId = sanitizedHeaders["webhook-id"];
+    if (typeof webhookId !== "string")
+      throw new Error("Invalid webhook-id header");
+    const timestamp = sanitizedHeaders["webhook-timestamp"];
+    if (typeof timestamp !== "string")
+      throw new Error("Invalid webhook-timestamp header");
+    const rawSignatures = sanitizedHeaders["webhook-signature"];
+    if (typeof rawSignatures !== "string")
+      throw new Error("Invalid webhook-signature header");
+    return { webhookId, timestamp, rawSignatures };
+  }
+  sign(content) {
+    return _crypto2.default.createHmac("sha256", this.secretBuffer).update(content).digest("base64");
+  }
+  verifyTimestamp(timestampHeader) {
+    const now = Math.floor(Date.now() / 1e3);
+    const timestamp = parseInt(timestampHeader, 10);
+    if (isNaN(timestamp)) {
+      throw new Error("Invalid timestamp");
+    }
+    if (timestamp < now - WEBHOOK_TOLERANCE_IN_SECONDS) {
+      throw new Error("Timestamp too old");
+    }
+    if (timestamp > now + WEBHOOK_TOLERANCE_IN_SECONDS) {
+      throw new Error("Timestamp in the future");
+    }
+  }
+  verifyWebhookEventType(event) {
+    if (event && event.type && (event.type === "storageUpdated" || event.type === "userEntered" || event.type === "userLeft"))
+      return;
+    throw new Error(
+      "Unknown event type, please upgrade to a higher version of @liveblocks/node"
+    );
+  }
+};
+var WebhookHandler = _WebhookHandler;
+WebhookHandler.secretPrefix = "whsec_";
+var WEBHOOK_TOLERANCE_IN_SECONDS = 5 * 60;
+var isNotUndefined = (value) => value !== void 0;
+
+// src/index.ts
 function authorize(options) {
@@ -78,2 +156,3 @@ return __async(this, null, function* () {
 
-exports.authorize = authorize;
+
+exports.WebhookHandler = WebhookHandler; exports.authorize = authorize;

package.json

 {
   "name": "@liveblocks/node",
-  "version": "0.19.9-beta3",
+  "version": "0.19.9-beta4",
   "description": "A server-side utility that lets you set up a Liveblocks authentication endpoint. Liveblocks is the all-in-one toolkit to build collaborative products like Figma, Notion, and more.",
@@ -23,3 +23,4 @@ "license": "Apache-2.0",
     "@liveblocks/jest-config": "*",
-    "@types/node-fetch": "^2.5.8"
+    "@types/node-fetch": "^2.5.8",
+    "svix": "^0.75.0"
   },
@@ -26,0 +27,0 @@ "dependencies": {

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Improved metrics

Total package byte prevSize

13304

increased by83.23%

Lines of code

297

increased by141.46%

Worsened metrics

Dev dependency count

4

increased by33.33%

No dependency changes