Check if subscription is valid

apps/web/src/app/api/ses_callback/route.ts

@@ -1,4 +1,7 @@
+import { AppSettingsService } from "~/server/service/app-settings-service";
 import { parseSesHook } from "~/server/service/ses-hook-parser";
+import { SnsNotificationMessage } from "~/types/aws-types";
+import { APP_SETTINGS } from "~/utils/constants";
 
 export async function GET(req: Request) {
   console.log("GET", req);
@@ -10,6 +13,14 @@ export async function POST(req: Request) {
 
   console.log(data, data.Message);
 
+  const isEventValid = await checkEventValidity(data);
+
+  console.log("isEventValid: ", isEventValid);
+
+  if (!isEventValid) {
+    return Response.json({ data: "Event is not valid" });
+  }
+
   if (data.Type === "SubscriptionConfirmation") {
     return handleSubscription(data);
   }
@@ -19,7 +30,7 @@ export async function POST(req: Request) {
   try {
     message = JSON.parse(data.Message || "{}");
     const status = await parseSesHook(message);
-    console.log("Error is parsing hook", status);
+    console.log("Error is parsing hook", !status);
     if (!status) {
       return Response.json({ data: "Error is parsing hook" });
     }
@@ -38,3 +49,17 @@ async function handleSubscription(message: any) {
 
   return Response.json({ data: "Success" });
 }
+
+// A simple check to ensure that the event is from the correct topic
+async function checkEventValidity(message: SnsNotificationMessage) {
+  const { TopicArn } = message;
+  const configuredTopicArn = await AppSettingsService.getSetting(
+    APP_SETTINGS.SNS_TOPIC_ARN
+  );
+
+  if (TopicArn !== configuredTopicArn) {
+    return false;
+  }
+
+  return true;
+}

apps/web/src/server/service/job-service.ts

@@ -1,8 +1,11 @@
 import pgBoss from "pg-boss";
 import { env } from "~/env";
-import { EmailAttachment, EmailContent } from "~/types";
-import { db } from "../db";
-import { sendEmailThroughSes, sendEmailWithAttachments } from "../aws/ses";
+import { EmailAttachment } from "~/types";
+import { db } from "~/server/db";
+import {
+  sendEmailThroughSes,
+  sendEmailWithAttachments,
+} from "~/server/aws/ses";
 import { getConfigurationSetName } from "~/utils/ses-utils";
 
 const boss = new pgBoss({