Update several packages to the latest version and fix the subsequent lint violations

package.json

@@ -61,22 +61,22 @@
   },
   "homepage": "https://github.com/ar27111994/webhook-debugger-logger#readme",
   "engines": {
-    "node": ">=20"
+    "node": ">=20.19.0"
   },
   "overrides": {
     "basic-ftp": "5.2.2"
   },
   "devDependencies": {
     "@apify/actor-memory-expression": "^0.1.6",
-    "@eslint/js": "^9.39.2",
+    "@eslint/js": "^10.0.1",
     "@types/compression": "^1.8.1",
     "@types/cors": "^2.8.19",
     "@types/express": "^5.0.6",
     "@types/jest": "^30.0.0",
     "@types/node": "^25.0.6",
-    "@types/supertest": "^6.0.3",
+    "@types/supertest": "^7.2.0",
     "eslint": "^10.0.0",
-    "eslint-plugin-sonarjs": "^3.0.7",
+    "eslint-plugin-sonarjs": "^4.0.2",
     "eventsource": "^4.1.0",
     "globals": "^17.0.0",
     "husky": "^9.1.7",
@@ -85,7 +85,7 @@
     "prettier": "^3.8.0",
     "supertest": "^7.2.2",
     "ts-api-utils": "^2.4.0",
-    "typescript": "^5.9.3"
+    "typescript": "^6.0.2"
   },
   "publishConfig": {
     "access": "public",

src/services/ForwardingService.js

@@ -268,20 +268,31 @@ export class ForwardingService {
 
     // 3. Defensive Body Size Check
     const MAX_FORWARD_BODY = APP_CONSTS.MAX_ALLOWED_PAYLOAD_SIZE;
-    let bodySize = 0;
-    if (req.headers[HTTP_HEADERS.CONTENT_LENGTH]) {
-      bodySize = parseInt(String(req.headers[HTTP_HEADERS.CONTENT_LENGTH]), 10);
+    if (Array.isArray(req.body)) {
+      log.warn(
+        { bodyType: "array" },
+        LOG_MESSAGES.FORWARD_PAYLOAD_TOO_LARGE,
+      );
+      return;
+    }
+    // parseInt on a missing/empty/non-numeric header returns NaN; Number.isFinite
+    // rejects NaN/Infinity so we fall through to measure the body directly.
+    const parsedContentLength = parseInt(
+      String(req.headers[HTTP_HEADERS.CONTENT_LENGTH] ?? ""),
+      10,
+    );
+    let bodySize;
+    if (Number.isFinite(parsedContentLength)) {
+      bodySize = parsedContentLength;
+    } else if (Buffer.isBuffer(req.body)) {
+      bodySize = req.body.length;
+    } else if (typeof req.body === "string") {
+      bodySize = Buffer.byteLength(req.body);
     } else {
-      if (Buffer.isBuffer(req.body)) {
-        bodySize = req.body.length;
-      } else if (typeof req.body === "string") {
-        bodySize = Buffer.byteLength(req.body);
-      } else {
-        try {
-          bodySize = Buffer.byteLength(JSON.stringify(req.body));
-        } catch {
-          bodySize = 0;
-        }
+      try {
+        bodySize = Buffer.byteLength(JSON.stringify(req.body));
+      } catch {
+        bodySize = 0;
       }
     }
 

tests/setup/helpers/constant-discovery.js

@@ -39,6 +39,7 @@ for (const entry of readdirSync(dir, { withFileTypes: true })) {
   } catch (error) {
     throw new Error(
       `Failed to discover constant modules at ${constsDir}: ${/** @type {Error} */ (error).message}`,
+      { cause: error },
     );
   }
 }