From e47c263f712daa3d4e61bf0d88439d9fb0db1ebf Mon Sep 17 00:00:00 2001
From: Brandon Ly <brandon.ly@mongodb.com>
Date: Wed, 20 Dec 2023 10:03:35 -0600
Subject: [PATCH] [HOTFIX]: Use fallback slack header if they are not present
 (#955)

---
 src/services/slack.ts | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/src/services/slack.ts b/src/services/slack.ts
index b8b7db3b7..3b6cb53ed 100644
--- a/src/services/slack.ts
+++ b/src/services/slack.ts
@@ -85,8 +85,9 @@ export class SlackConnector implements ISlackConnector {
 
   validateSlackRequest(payload: any): boolean {
     // params needed to verify for slack
-    const headerSlackSignature = payload.headers['X-Slack-Signature'].toString(); // no idea why `typeof <sig>` = object
-    const timestamp = payload.headers['X-Slack-Request-Timestamp'];
+    const headerSlackSignature =
+      payload.headers['X-Slack-Signature']?.toString() ?? payload.headers['x-slack-signature']?.toString(); // no idea why `typeof <sig>` = object
+    const timestamp = payload.headers['X-Slack-Request-Timestamp'] ?? payload.headers['x-slack-request-timestamp'];
     const signingSecret = process.env.SLACK_SECRET;
     if (signingSecret) {
       const hmac = crypto.createHmac('sha256', signingSecret);