From e06bd4892b840f6c42fdf421652f2077c44885da Mon Sep 17 00:00:00 2001
From: Lalit Kapoor <lalit@makenotion.com>
Date: Thu, 5 Dec 2024 07:50:21 -0500
Subject: [PATCH] Add support for node v18 (#349)

* support v18

* add license

* test node v18 in ci

* changeset

* test node v22 in ci

* test latest node version in ci
---
 .changeset/flat-jeans-agree.md                     |  5 +++++
 .github/workflows/ci.yml                           |  5 ++++-
 packages/livekit-server-sdk/package.json           |  2 +-
 packages/livekit-server-sdk/src/WebhookReceiver.ts |  4 ++--
 packages/livekit-server-sdk/src/digest.ts          | 14 ++++++++++++++
 5 files changed, 26 insertions(+), 4 deletions(-)
 create mode 100644 .changeset/flat-jeans-agree.md
 create mode 100644 packages/livekit-server-sdk/src/digest.ts

diff --git a/.changeset/flat-jeans-agree.md b/.changeset/flat-jeans-agree.md
new file mode 100644
index 00000000..5c38cb73
--- /dev/null
+++ b/.changeset/flat-jeans-agree.md
@@ -0,0 +1,5 @@
+---
+'livekit-server-sdk': patch
+---
+
+support for node v18
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index fa66c5e9..d224a586 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -70,6 +70,9 @@ jobs:
 
   test:
     name: Test
+    strategy:
+      matrix:
+        node-version: [18, 20, 22, latest]
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
@@ -77,7 +80,7 @@ jobs:
       - name: Setup Node.js
         uses: actions/setup-node@v4
         with:
-          node-version: 20
+          node-version: ${{ matrix.node-version }}
           cache: pnpm
       - name: Install dependencies
         run: pnpm install
diff --git a/packages/livekit-server-sdk/package.json b/packages/livekit-server-sdk/package.json
index 129da7d3..64949776 100644
--- a/packages/livekit-server-sdk/package.json
+++ b/packages/livekit-server-sdk/package.json
@@ -53,6 +53,6 @@
     "vitest": "^2.0.0"
   },
   "engines": {
-    "node": ">=19"
+    "node": ">=18"
   }
 }
diff --git a/packages/livekit-server-sdk/src/WebhookReceiver.ts b/packages/livekit-server-sdk/src/WebhookReceiver.ts
index 37db2476..2cddac13 100644
--- a/packages/livekit-server-sdk/src/WebhookReceiver.ts
+++ b/packages/livekit-server-sdk/src/WebhookReceiver.ts
@@ -4,6 +4,7 @@
 import type { BinaryReadOptions, JsonReadOptions, JsonValue } from '@bufbuild/protobuf';
 import { WebhookEvent as ProtoWebhookEvent } from '@livekit/protocol';
 import { TokenVerifier } from './AccessToken.js';
+import digest from './digest.js';
 
 export const authorizeHeader = 'Authorize';
 
@@ -66,8 +67,7 @@ export class WebhookReceiver {
       }
       const claims = await this.verifier.verify(authHeader);
       // confirm sha
-      const encoder = new TextEncoder();
-      const hash = await crypto.subtle.digest('SHA-256', encoder.encode(body));
+      const hash = await digest(body);
       const hashDecoded = btoa(
         Array.from(new Uint8Array(hash))
           .map((v) => String.fromCharCode(v))
diff --git a/packages/livekit-server-sdk/src/digest.ts b/packages/livekit-server-sdk/src/digest.ts
new file mode 100644
index 00000000..e0d41718
--- /dev/null
+++ b/packages/livekit-server-sdk/src/digest.ts
@@ -0,0 +1,14 @@
+// SPDX-FileCopyrightText: 2024 LiveKit, Inc.
+//
+// SPDX-License-Identifier: Apache-2.0
+
+// Use the Web Crypto API if available, otherwise fallback to Node.js crypto
+export default async function digest(data: string): Promise<ArrayBuffer> {
+  if (globalThis.crypto?.subtle) {
+    const encoder = new TextEncoder();
+    return crypto.subtle.digest('SHA-256', encoder.encode(data));
+  } else {
+    const nodeCrypto = await import('node:crypto');
+    return nodeCrypto.createHash('sha256').update(data).digest();
+  }
+}