From 291a278dfa9947fa138e3fae926319c62502e798 Mon Sep 17 00:00:00 2001
From: Daniel Weber <mail.weberdaniel@gmail.com>
Date: Mon, 19 May 2025 20:57:20 +0200
Subject: [PATCH] Add possibility to show/hide human readable dates based on
 given timestamps of jwt token.

---
 src/core/operations/JWTDecode.mjs    | 25 ++++++++++++++++++++++++-
 tests/operations/tests/JWTDecode.mjs | 23 ++++++++++++++++++++---
 2 files changed, 44 insertions(+), 4 deletions(-)

diff --git a/src/core/operations/JWTDecode.mjs b/src/core/operations/JWTDecode.mjs
index b6356b5a..95fb5396 100644
--- a/src/core/operations/JWTDecode.mjs
+++ b/src/core/operations/JWTDecode.mjs
@@ -7,6 +7,7 @@
 import Operation from "../Operation.mjs";
 import jwt from "jsonwebtoken";
 import OperationError from "../errors/OperationError.mjs";
+import moment from "moment-timezone";
 
 /**
  * JWT Decode operation
@@ -25,7 +26,13 @@ class JWTDecode extends Operation {
         this.infoURL = "https://wikipedia.org/wiki/JSON_Web_Token";
         this.inputType = "string";
         this.outputType = "JSON";
-        this.args = [];
+        this.args = [
+            {
+                "name": "Show/Hide dates",
+                "type": "boolean",
+                "value": false
+            }
+        ];
         this.checks = [
             {
                 pattern: "^ey([A-Za-z0-9_-]+)\\.ey([A-Za-z0-9_-]+)\\.([A-Za-z0-9_-]+)$",
@@ -42,11 +49,27 @@ class JWTDecode extends Operation {
      */
     run(input, args) {
         try {
+            const formatAsDate = args[0];
             const decoded = jwt.decode(input, {
                 json: true,
                 complete: true
             });
 
+            if (formatAsDate) {
+                const payload = {...decoded.payload};
+                if (payload.iat) {
+                    payload.iat = payload.iat + " ("+moment.unix(payload.iat).tz("UTC").format("ddd D MMMM YYYY HH:mm:ss") + " UTC)";
+                }
+                if (payload.exp) {
+                    payload.exp = payload.exp + " ("+moment.unix(payload.exp).tz("UTC").format("ddd D MMMM YYYY HH:mm:ss") + " UTC)";
+                }
+                if (payload.nbf) {
+                    payload.nbf = payload.nbf + " ("+moment.unix(payload.nbf).tz("UTC").format("ddd D MMMM YYYY HH:mm:ss") + " UTC)";
+                }
+
+                return payload;
+            }
+
             return decoded.payload;
         } catch (err) {
             throw new OperationError(err);
diff --git a/tests/operations/tests/JWTDecode.mjs b/tests/operations/tests/JWTDecode.mjs
index 1ef47f81..1bc742e2 100644
--- a/tests/operations/tests/JWTDecode.mjs
+++ b/tests/operations/tests/JWTDecode.mjs
@@ -14,7 +14,24 @@ const outputObject = JSON.stringify({
     iat: 1
 }, null, 4);
 
+const formattedIatOutputObject = JSON.stringify({
+    String: "SomeString",
+    Number: 42,
+    iat: "1 (Thu 1 January 1970 00:00:01 UTC)"
+}, null, 4);
+
 TestRegister.addTests([
+    {
+        name: "JWT Decode: HS with formatted iat",
+        input: "eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJTdHJpbmciOiJTb21lU3RyaW5nIiwiTnVtYmVyIjo0MiwiaWF0IjoxfQ.0ha6-j4FwvEIKPVZ-hf3S_R9Hy_UtXzq4dnedXcUrXk",
+        expectedOutput: formattedIatOutputObject,
+        recipeConfig: [
+            {
+                op: "JWT Decode",
+                args: [true],
+            }
+        ],
+    },
     {
         name: "JWT Decode: HS",
         input: "eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJTdHJpbmciOiJTb21lU3RyaW5nIiwiTnVtYmVyIjo0MiwiaWF0IjoxfQ.0ha6-j4FwvEIKPVZ-hf3S_R9Hy_UtXzq4dnedXcUrXk",
@@ -22,7 +39,7 @@ TestRegister.addTests([
         recipeConfig: [
             {
                 op: "JWT Decode",
-                args: [],
+                args: [false],
             }
         ],
     },
@@ -33,7 +50,7 @@ TestRegister.addTests([
         recipeConfig: [
             {
                 op: "JWT Decode",
-                args: [],
+                args: [false],
             }
         ],
     },
@@ -44,7 +61,7 @@ TestRegister.addTests([
         recipeConfig: [
             {
                 op: "JWT Decode",
-                args: [],
+                args: [false],
             }
         ],
     }