Repository: mathematicalbasedefenders/mathematicalbasedefenders.com
Pull request #59: Change mail sending method + ????????????
Author: login: mistertfy64
Created: 2025-03-22T13:12:07Z | Merged: 2025-03-22T13:29:15Z



<!-- This is an auto-generated comment: release notes by coderabbit.ai -->

## Summary by CodeRabbit

- **New Features**
  - Improved account email notifications for registration, password resets, and account verifications ensure users receive timely messages that enhance their interaction with the system.
- **Refactor**
  - Optimized password recovery and email confirmation flows by integrating secure hashed token management along with robust error handling, resulting in enhanced security and improved reliability for user account management.

<!-- end of auto-generated comment: release notes by coderabbit.ai -->


Diff:
diff --git a/.vscode/settings.json b/.vscode/settings.json
index c0939437..5db8df19 100644
--- a/.vscode/settings.json
+++ b/.vscode/settings.json
@@ -36,7 +36,8 @@
     "uuidv",
     "verifiedemail",
     "wght",
-    "XVRB"
+    "XVRB",
+    "zeptomail"
   ],
   "python.linting.pylintEnabled": true,
   "python.linting.enabled": true
diff --git a/package.json b/package.json
index f45644ec..48b6758e 100644
--- a/package.json
+++ b/package.json
@@ -17,7 +17,6 @@
   },
   "dependencies": {
     "@types/isomorphic-fetch": "^0.0.36",
-    "axios": "^1.6.2",
     "bcrypt": "^5.0.1",
     "body-parser": "^1.19.1",
     "chai": "^5.1.1",
@@ -36,6 +35,7 @@
     "express-rate-limit": "^6.1.0",
     "fontfaceobserver": "^2.1.0",
     "helmet": "^7.1.0",
+    "js-sha256": "^0.11.0",
     "jsdom": "^19.0.0",
     "license-checker": "^8.0.1",
     "lodash": "^4.17.21",
@@ -51,7 +51,8 @@
     "nodemailer-express-handlebars": "^6.1.0",
     "serve-favicon": "^2.5.0",
     "typescript": "^4.8.4",
-    "uuid": "^8.3.2"
+    "uuid": "^8.3.2",
+    "zeptomail": "^6.2.0"
   },
   "repository": {
     "type": "git",
@@ -90,4 +91,4 @@
     "mocha": "^10.7.3",
     "tsx": "^4.19.1"
   }
-}
\ No newline at end of file
+}
diff --git a/src/server/core/mail.ts b/src/server/core/mail.ts
index ad343639..3594f075 100644
--- a/src/server/core/mail.ts
+++ b/src/server/core/mail.ts
@@ -11,26 +11,45 @@ import { log } from "../core/log.js";
 
 const transporter = nodemailer.createTransport(getNodemailerOptionsObject());
 
+const { SendMailClient } = require("zeptomail");
+
+const EMAIL_URL = process.env.EMAIL_URL;
+const EMAIL_TOKEN = process.env.EMAIL_TOKEN;
+const EMAIL_FROM_ADDRESS = process.env.EMAIL_FROM_ADDRESS;
+const EMAIL_FROM_NAME = process.env.EMAIL_FROM_NAME;
+
+const client = new SendMailClient({ url: EMAIL_URL, token: EMAIL_TOKEN });
+
 async function sendMailForPasswordReset(
   recipientEmail: string,
   confirmationCode: string
 ) {
-  const email = DOMPurify.sanitize(encodeURIComponent(recipientEmail));
+  const email = DOMPurify.sanitize(recipientEmail);
   const code = DOMPurify.sanitize(confirmationCode);
 
-  const message = {
-    subject: "Password Reset Confirmation for Mathematical Base Defenders",
-    from: "Mathematical Base Defenders <noreply@mathematicalbasedefenders.com>",
-    text: generatePasswordChangeMail(email, code),
-    to: recipientEmail
+  const toSend = {
+    "from": {
+      "address": EMAIL_FROM_ADDRESS,
+      "name": EMAIL_FROM_NAME
+    },
+    "to": [
+      {
+        "email_address": {
+          "address": email
+        }
+      }
+    ],
+    "subject": "Password Reset Confirmation for Mathematical Base Defenders",
+    "textBody": generatePasswordChangeMail(email, code)
   };
+
   try {
-    await transporter.sendMail(message);
+    await client.sendMail(toSend);
   } catch (error) {
     if (error instanceof Error) {
       log.error(error.stack);
     } else {
-      log.error(`Unknown mail error: ${error}`);
+      log.error(`Unknown mail error: ${JSON.stringify(error)}`);
     }
     return false;
   }
@@ -41,22 +60,32 @@ async function sendMailToNewlyRegisteredUser(
   recipientEmail: string,
   confirmationCode: string
 ) {
-  const email = DOMPurify.sanitize(encodeURIComponent(recipientEmail));
+  const email = DOMPurify.sanitize(recipientEmail);
   const code = DOMPurify.sanitize(confirmationCode);
-  const message = {
-    subject: "New Account Confirmation for Mathematical Base Defenders",
-    from: "Mathematical Base Defenders <noreply@mathematicalbasedefenders.com>",
-    text: generateNewUserMail(email, code),
-    to: recipientEmail
+
+  const toSend = {
+    "from": {
+      "address": EMAIL_FROM_ADDRESS,
+      "name": EMAIL_FROM_NAME
+    },
+    "to": [
+      {
+        "email_address": {
+          "address": email
+        }
+      }
+    ],
+    "subject": "New Account Confirmation for Mathematical Base Defenders",
+    "textBody": generateNewUserMail(email, code)
   };
 
   try {
-    await transporter.sendMail(message);
+    await client.sendMail(toSend);
   } catch (error) {
     if (error instanceof Error) {
       log.error(error.stack);
     } else {
-      log.error(`Unknown mail error: ${error}`);
+      log.error(`Unknown mail error: ${JSON.stringify(error)}`);
     }
     return false;
   }
@@ -115,11 +144,17 @@ function validateUrlParameters(base: string, email: string, code: string) {
 }
 
 function constructConfirmationUrl(base: string, email: string, code: string) {
+  const encodedEmail = encodeURI(email);
+  const encodedCode = encodeURI(code);
+  let domain = "http://localhost:8000";
   if (!validateUrlParameters(base, email, code)) {
     log.warn("URL parameters is invalid, confirmation link not sent.");
     return `[CONFIRMATION LINK NOT SHOWN DUE TO ERROR, PLEASE CONTACT ADMINISTRATOR!]`;
   }
-  return `https://mathematicalbasedefenders.com/${base}?email=${email}&code=${code}`;
+  if (process.env.CREDENTIAL_SET_USED === "production") {
+    domain = "https://mathematicalbasedefenders.com";
+  }
+  return `${domain}/${base}?code=${encodedCode}`;
 }
 
 export { sendMailToNewlyRegisteredUser, sendMailForPasswordReset };
diff --git a/src/server/routes/change-password.ts b/src/server/routes/change-password.ts
index 5765ce3b..4870fc56 100644
--- a/src/server/routes/change-password.ts
+++ b/src/server/routes/change-password.ts
@@ -31,6 +31,7 @@ const { generateToken, doubleCsrfProtection } = doubleCsrf({
     return req.body["csrf-token"];
   }
 });
+const sha256 = require("js-sha256");
 
 const ERROR_MESSAGES: { [key: string]: string } = {
   "captchaIncomplete": "Complete the CAPTCHA to request a password change!",
@@ -47,23 +48,13 @@ router.get(
   async (request: Request, response: Response) => {
     const query: any = url.parse(request.url, true).query;
 
-    // if invalid query, redirect to bad page.
-    // this catches if EITHER email or code is supplied, but not both.
-    if (
-      (typeof query.email === "string" || typeof query.code === "string") &&
-      !(typeof query.email === "string" && typeof query.code === "string")
-    ) {
-      response.redirect("/?erroroccurred=true");
-      return;
-    }
-
-    if (typeof query.email === "string" && typeof query.code === "string") {
+    if (typeof query.code === "string") {
       // sanitize email and code
       const email = mongoDBSanitize.sanitize(query.email) as unknown as string;
       const code = mongoDBSanitize.sanitize(query.code) as unknown as string;
 
       // find record
-      const record = await getPendingPasswordResetRecord(email, code);
+      const record = await getPendingPasswordResetRecord(code);
 
       // if no record, redirect to bad page
       if (!record) {
@@ -144,6 +135,7 @@ router.post(
           email.length
         }) for password request!`
       );
+      await PendingPasswordReset.deleteOne({ emailAddress: email });
       // response.redirect("/change-password?errorID=mailError");
       ok = false;
       return;
@@ -170,17 +162,21 @@ router.post(
       return;
     }
 
-    const [email, code] = getChangePasswordQueryString(request);
+    const code = getChangePasswordQueryString(request);
+
+    const hashedCode = sha256(code);
 
     const record = await PendingPasswordReset.findOne({
-      $and: [{ emailAddress: email }, { passwordResetConfirmationCode: code }]
+      $and: [{ passwordResetConfirmationCode: hashedCode }]
     }).clone();
     if (!record) {
-      log.warn(`Perform PW change: no e-mail ${email} (record) found!`);
+      log.warn(`Perform PW change: no code ${code} (record) found!`);
       response.redirect("/?changed=false");
       return;
     }
 
+    const email = record.emailAddress;
+
     const newPassword = DOMPurify.sanitize(
       mongoDBSanitize.sanitize(request.body["new-password"])
     );
@@ -240,9 +236,10 @@ router.post(
 );
 
 // other functions
-async function getPendingPasswordResetRecord(email: any, code: any) {
+async function getPendingPasswordResetRecord(code: string) {
+  const hashedCode = sha256(code);
   const pendingPasswordResetRecord = await PendingPasswordReset.findOne({
-    $and: [{ emailAddress: email }, { passwordResetConfirmationCode: code }]
+    $and: [{ passwordResetConfirmationCode: hashedCode }]
   }).clone();
   return pendingPasswordResetRecord;
 }
@@ -262,11 +259,11 @@ async function checkCAPTCHA(responseKey: string) {
 
 function createPasswordResetRequestRecord(email: string, code: string) {
   // create password reset request record
-  const passwordResetConfirmationCode = code;
+  const hashedPasswordResetConfirmationCode = sha256(code);
   const dataToSave = {
     emailAddress: email,
-    passwordResetConfirmationLink: `https://mathematicalbasedefenders.com/change-password?email=${email}&code=${passwordResetConfirmationCode}`,
-    passwordResetConfirmationCode: passwordResetConfirmationCode,
+    passwordResetConfirmationLink: `https://mathematicalbasedefenders.com/change-password?email=${email}&code=${hashedPasswordResetConfirmationCode}`,
+    passwordResetConfirmationCode: hashedPasswordResetConfirmationCode,
     expiresAt: new Date(Date.now() + 1800000).getTime()
   };
   return dataToSave;
@@ -283,7 +280,7 @@ function getChangePasswordQueryString(request: any) {
   const query: any = request.query;
   const email = parseString(query.email);
   const code = parseString(query.code);
-  return [email, code];
+  return code;
 }
 
 export { router };
diff --git a/src/server/routes/confirm-email-address.ts b/src/server/routes/confirm-email-address.ts
index 3720a3d4..81a25b6c 100644
--- a/src/server/routes/confirm-email-address.ts
+++ b/src/server/routes/confirm-email-address.ts
@@ -5,6 +5,8 @@ import { PendingUser, PendingUserInterface } from "../models/PendingUser.js";
 import { User, UserInterface } from "../models/User";
 import Metadata from "../models/Metadata.js";
 
+const sha256 = require("js-sha256");
+
 import url from "url";
 import { JSDOM } from "jsdom";
 import createDOMPurify from "dompurify";
@@ -23,17 +25,17 @@ const limiter = rateLimit({
 import { log } from "../core/log.js";
 
 router.get("/confirm-email-address", limiter, async (request, response) => {
-  const [email, code] = getDataFromQueryString(request);
+  const code = getDataFromQueryString(request);
 
-  if (!email || !code) {
-    log.warn(`Invalid e-mail and/or code supplied while verifying! (${code})`);
+  if (!code) {
+    log.warn(`Invalid code supplied while verifying! (${code})`);
     response.redirect("/?activated=false");
     return;
   }
 
   let pendingUserRecord;
   try {
-    pendingUserRecord = await getPendingUser(email, code);
+    pendingUserRecord = await getPendingUser(code);
   } catch (error) {
     log.error("Error retrieving pending user record:", error);
     response.redirect("/?activated=false");
@@ -64,6 +66,7 @@ router.get("/confirm-email-address", limiter, async (request, response) => {
     log.info(`User ${pendingUserRecord["username"]} validated!`);
 
     // delete pending user record
+    const email = pendingUserRecord.emailAddress;
     await deletePendingUserRecord(email);
 
     // update metadata
@@ -92,7 +95,7 @@ function getDataFromQueryString(request: express.Request) {
   const parsedURL = url.parse(request.url, true); // possibly none
   const query = parsedURL.query;
   if (query == null) {
-    return [null, null];
+    return null;
   }
   // // get email
   // const uriDecodedEmail: any = decodeURIComponent(query.email) as string;
@@ -111,12 +114,13 @@ function getDataFromQueryString(request: express.Request) {
   const decodedCode = rawCode ? decodeURIComponent(rawCode.trim()) : null;
   const sanitizedCode = sanitizeString(decodedCode) ?? null;
 
-  return [sanitizedEmail, sanitizedCode];
+  return sanitizedCode;
 }
 
-async function getPendingUser(email: string, code: string) {
+async function getPendingUser(code: string) {
+  const hashedCode = sha256(code);
   const user = await PendingUser.findOne({
-    $and: [{ emailAddress: email }, { emailConfirmationCode: code }]
+    $and: [{ emailConfirmationCode: hashedCode }]
   }).clone();
   return user;
 }
diff --git a/src/server/routes/register.ts b/src/server/routes/register.ts
index a6d1b359..99f02517 100644
--- a/src/server/routes/register.ts
+++ b/src/server/routes/register.ts
@@ -9,7 +9,6 @@ const limiter = rateLimit({
   standardHeaders: true,
   legacyHeaders: false
 });
-
 const UserService = require("../../server/services/user.js");
 const MailService = require("../../server/services/mail.js");
 const parseForm = bodyParser.urlencoded({ extended: false });
@@ -25,6 +24,7 @@ const fetch = require("node-fetch");
 import { JSDOM } from "jsdom";
 import createDOMPurify from "dompurify";
 import { log } from "../core/log";
+
 const window: any = new JSDOM("").window;
 const DOMPurify = createDOMPurify(window);
 
@@ -91,11 +91,15 @@ router.post(
     }
     // Send Mail
 
-    await MailService.sendMailToUnverifiedUser(
+    const mailResult = await MailService.sendMailToUnverifiedUser(
       username,
       email,
       addUserResult.emailConfirmationCode
     );
+    if (!mailResult.success) {
+      response.redirect(mailResult.redirectTo);
+      return;
+    }
 
     // Finish
     response.redirect("/?registered=true");
diff --git a/src/server/services/mail.ts b/src/server/services/mail.ts
index 5452b422..7eec44fa 100644
--- a/src/server/services/mail.ts
+++ b/src/server/services/mail.ts
@@ -1,12 +1,20 @@
 import { log } from "../core/log.js";
 import * as mail from "../core/mail.js";
+import { PendingUser } from "../models/PendingUser.js";
 
 async function sendMailToUnverifiedUser(
   desiredUsername: string,
   email: string,
   confirmationCode: string
 ) {
-  if (!mail.sendMailToNewlyRegisteredUser(email, confirmationCode)) {
+  if (!(await mail.sendMailToNewlyRegisteredUser(email, confirmationCode))) {
+    log.error(
+      `Unable to send verification message to ${desiredUsername}'s e-mail!`
+    );
+
+    await PendingUser.deleteOne({ emailAddress: email }).clone();
+    log.info("Deleted pending user record (e-mail failed to send).");
+
     return {
       success: false,
       redirectTo: "?errorID=internalError"
diff --git a/src/server/services/user.ts b/src/server/services/user.ts
index 8cded630..d93ec0da 100644
--- a/src/server/services/user.ts
+++ b/src/server/services/user.ts
@@ -1,5 +1,6 @@
 const bcrypt = require("bcrypt");
 const { v4: uuidv4 } = require("uuid");
+const sha256 = require("js-sha256");
 
 import { log } from "../core/log";
 // var PendingUser = require("../models/PendingUser.js");
@@ -86,13 +87,15 @@ async function addUnverifiedUser(
     };
   }
 
+  const hashedEmailConfirmationCode = sha256(emailConfirmationCode);
+
   const dataToSave = {
     username: desiredUsername,
     usernameInAllLowercase: desiredUsername.toLowerCase(),
     emailAddress: desiredEmail,
     hashedPassword: hashedPassword,
     emailConfirmationLink: `https://mathematicalbasedefenders.com/confirm-email-address?email=${desiredEmail}&code=${emailConfirmationCode}`,
-    emailConfirmationCode: emailConfirmationCode,
+    emailConfirmationCode: hashedEmailConfirmationCode,
     expiresAt: new Date(Date.now() + 1800000).getTime()
   };
 


Reviews:
user: login: coderabbitai[bot]
body: **Actionable comments posted: 6**

<details>
<summary>🧹 Nitpick comments (7)</summary><blockquote>

<details>
<summary>src/server/services/user.ts (1)</summary><blockquote>

`97-98`: **Updated data structure to store hashed confirmation code.**

The data structure now properly uses the hashed version of the email confirmation code.


While MD5 is sufficient for this use case (since the original code is a UUID), consider adding a salt to further strengthen the hash:

```diff
-  const hashedEmailConfirmationCode = md5(emailConfirmationCode);
+  const salt = process.env.EMAIL_HASH_SALT || 'default-salt';
+  const hashedEmailConfirmationCode = md5(emailConfirmationCode + salt);
```

</blockquote></details>
<details>
<summary>src/server/core/mail.ts (3)</summary><blockquote>

`14-15`: **Use ES Modules for consistency**

The rest of the file uses import statements, so consider using the ES module import syntax here instead of require.

---

`66-79`: **Consider DRYing up repetitive mail logic**

The mail payload in this block closely mirrors the reset password version. Refactor the common fields into a helper function for maintainability.

```diff
-similar repeated code
+// example pseudo-helper:
+function buildMailObject(email, subject, textBody) {
+  return {
+    from: {
+      address: EMAIL_FROM_ADDRESS,
+      name: EMAIL_FROM_NAME
+    },
+    to: [{
+      email_address: {
+        address: email
+      }
+    }],
+    subject,
+    textBody
+  };
+}
```

---

`147-149`: **Remove unused variable or include email in final URL**

`encodedEmail` is defined but never used in the returned URL. If it’s unnecessary, remove it to avoid confusion. Otherwise, append it to the query string if it’s still required.

```diff
-  const encodedEmail = encodeURI(email);
   const encodedCode = encodeURI(code);
```

</blockquote></details>
<details>
<summary>src/server/services/mail.ts (1)</summary><blockquote>

`10-16`: **Robust asynchronous handling**

Awaiting `sendMailToNewlyRegisteredUser` ensures proper error handling. Deleting the pending user record on failure keeps data consistent, though consider whether a retry mechanism is warranted for intermittent email failures.

</blockquote></details>
<details>
<summary>src/server/routes/confirm-email-address.ts (1)</summary><blockquote>

`8-8`: **Consider ES Modules for md5 import**

Using `require("md5")` may be inconsistent with the ES import style in the rest of the file. If it's supported, consider using an ESM import for uniformity.

</blockquote></details>
<details>
<summary>src/server/routes/change-password.ts (1)</summary><blockquote>

`272-284`: **Simplification of return value may affect function callers.**

This function previously likely returned both `email` and `code`, but now only returns `code`. Ensure all callers of this function are updated to expect only the code return value. Also, consider adding TypeScript return type annotations for better code documentation.

```diff
-function getChangePasswordQueryString(request: any) {
+function getChangePasswordQueryString(request: any): string {
   function parseString(what: any) {
     const decoded = decodeURIComponent(what);
     const databaseSanitized = mongoDBSanitize.sanitize(decoded as any);
     const htmlSanitized = DOMPurify.sanitize(databaseSanitized);
     return htmlSanitized;
   }

   const query: any = request.query;
   const email = parseString(query.email);
   const code = parseString(query.code);
   return code;
}
```

</blockquote></details>

</blockquote></details>

<details>
<summary>📜 Review details</summary>

**Configuration used: CodeRabbit UI**
**Review profile: CHILL**
**Plan: Pro**

<details>
<summary>📥 Commits</summary>

Reviewing files that changed from the base of the PR and between 86263c6ffb0d171b59bc623723226cbcb6f68176 and 09af4bbe04f79a59f8e0bae970dd1be5fcbc725f.

</details>

<details>
<summary>📒 Files selected for processing (8)</summary>

* `.vscode/settings.json` (1 hunks)
* `package.json` (3 hunks)
* `src/server/core/mail.ts` (3 hunks)
* `src/server/routes/change-password.ts` (7 hunks)
* `src/server/routes/confirm-email-address.ts` (5 hunks)
* `src/server/routes/register.ts` (2 hunks)
* `src/server/services/mail.ts` (1 hunks)
* `src/server/services/user.ts` (2 hunks)

</details>

<details>
<summary>🔇 Additional comments (23)</summary><blockquote>

<details>
<summary>.vscode/settings.json (1)</summary>

`39-40`: **Properly updated spell-check dictionary.**

Adding "zeptomail" to the cSpell dictionary is appropriate since it's a new dependency being introduced in this PR.

</details>
<details>
<summary>package.json (2)</summary>

`44-44`: **Added MD5 dependency for hashing operations.**

The addition of the md5 library aligns with the changes in the user service for hashing confirmation codes.

---

`55-56`: <details>
<summary>❓ Verification inconclusive</summary>

**Added ZeptoMail but retained Nodemailer.**

While adding the zeptomail dependency is appropriate for the new mail sending method, I notice that nodemailer and nodemailer-express-handlebars dependencies are still present in the package.json.

Are you planning to completely transition from nodemailer to zeptomail? If so, consider removing the nodemailer-related dependencies if they're no longer needed.

---

🏁 Script executed:

```shell
#!/bin/bash
# Check if nodemailer is still being used in the codebase
echo "Checking for nodemailer usage in the codebase:"
rg -i "require\(.*nodemailer\)" || echo "No direct requires of nodemailer found"
rg -i "from .*nodemailer" || echo "No imports of nodemailer found"
```

Length of output: 376

---



</details>

**Action Required: Confirm Transition from Nodemailer**

The new changes add ZeptoMail, yet our repository still imports nodemailer—and its accompanying plugin—in `src/server/core/mail.ts` (see the import statements for both `nodemailer` and `nodemailer-express-handlebars`). Could you clarify whether you intend to fully transition to ZeptoMail? If the migration is complete, please remove the nodemailer-related code from `src/server/core/mail.ts` and clean up the corresponding dependencies in `package.json`. Otherwise, consider adding comments to document why both systems are maintained.

</details>
<details>
<summary>src/server/services/user.ts (2)</summary>

`2-3`: **Added MD5 import for hashing confirmation codes.**

The import of the md5 library is appropriate for the planned changes to hash email confirmation codes.

---

`90-91`: **Improved security by hashing email confirmation codes.**

Using MD5 to hash the confirmation code prevents storing raw confirmation codes in the database, which is a good security practice.

</details>
<details>
<summary>src/server/routes/register.ts (1)</summary>

`94-102`: <details>
<summary>❓ Verification inconclusive</summary>

**Improved error handling for email sending failures.**

The code now properly handles failures in the email sending process by checking the result and redirecting the user accordingly. This is a good improvement to the error handling flow.


Verify that the error messages shown to users are clear when email sending fails:

---

🏁 Script executed:

```shell
#!/bin/bash
# Check what error messages are provided when email sending fails
echo "Checking how email sending failures are handled:"
rg -A 5 "sendMailToUnverifiedUser" --include "*.ts" --include "*.js"
```

Length of output: 617

---



</details>

**Action Required: Confirm Clear Error Message for Email Failure**

The updated error handling now correctly checks the result from `MailService.sendMailToUnverifiedUser` and redirects the user on failure. However, the verification of clear user-facing error messages was inconclusive due to a parameter issue in the initial search command. Please ensure that the page referenced by `mailResult.redirectTo` displays an explicit and helpful error message. For further context, consider running an updated search such as:

```shell
#!/bin/bash
# Re-check error message context for email sending failures with updated flags:
rg -A 5 "sendMailToUnverifiedUser" -g "*.ts" -g "*.js"
```

Verify manually that users receive clear feedback if email sending fails.

</details>
<details>
<summary>src/server/core/mail.ts (11)</summary>

`21-21`: **Looks good!**

Creating a dedicated ZeptoMail client is a clean approach.

---

`27-27`: **Good addition of sanitization**

Using DOMPurify to sanitize the recipient email is a safe practice.

---

`42-43`: **No issues found**

The subject and textBody fields accurately outline the password reset details.

---

`47-47`: **Asynchronous sendMail usage**

Awaiting the sendMail call is correct, ensuring that failures are handled in the try-catch.

---

`52-52`: **Enhanced error logging**

Logging unknown mail errors via JSON.stringify is helpful for debugging and monitoring.

---

`63-63`: **Consistent sanitization**

Applying DOMPurify again here ensures the newly registered user's email is equally validated.

---

`83-83`: **No issues here**

Awaiting the sendMail call is consistent with your password reset flow.

---

`88-88`: **Match the error format**

Keeping unknown mail error logging consistent helps maintain uniform debugging outputs.

---

`154-157`: **Deployment environment check is correct**

Switching the domain in production mode appropriately ensures the right URL is used.

---

`16-19`: <details>
<summary>❓ Verification inconclusive</summary>

**Verify environment variable presence**

Ensure that `EMAIL_URL`, `EMAIL_TOKEN`, `EMAIL_FROM_ADDRESS`, and `EMAIL_FROM_NAME` are properly set to avoid runtime errors.

---

🏁 Script executed:

```shell
#!/bin/bash
# This script checks if these environment variables are set in the Dockerfile or .env files, if available
rg '\bEMAIL_URL\b|\bEMAIL_TOKEN\b|\bEMAIL_FROM_ADDRESS\b|\bEMAIL_FROM_NAME\b' -A 3
```

Length of output: 1076

---



</details>

**Check Environment Variable Configuration**

The code in `src/server/core/mail.ts` correctly retrieves the environment variables:
  
```
const EMAIL_URL = process.env.EMAIL_URL;
const EMAIL_TOKEN = process.env.EMAIL_TOKEN;
const EMAIL_FROM_ADDRESS = process.env.EMAIL_FROM_ADDRESS;
const EMAIL_FROM_NAME = process.env.EMAIL_FROM_NAME;
```

However, the search output only shows these references in the source file, with no indication that they are defined in your Dockerfile or any `.env` file. To avoid runtime errors, please verify that these variables are properly set in your deployment environment (e.g. via a `.env` file, Docker configuration, or other relevant setup).

---

`30-35`: <details>
<summary>❓ Verification inconclusive</summary>

**Double-check ZeptoMail field names**

Ensure this object structure exactly matches ZeptoMail’s required fields. Otherwise, it looks correct for building the email payload.

---

🏁 Script executed:

```shell
#!/bin/bash
# This script will search for references to "SendMailClient" usage or "toSend" structures
rg -A 10 'SendMailClient|toSend'
```

Length of output: 2894

---



</details>

**Verify ZeptoMail API Field Alignment**

The payload structure in `src/server/core/mail.ts` (lines 30-35) is consistently constructed (as confirmed by both usage occurrences) with a `"from"` object containing `"address"` and `"name"`, and a `"to"` array holding objects with the nested `"email_address"`. The code assembly appears correct based on how it’s used with `SendMailClient`. However, please manually verify against ZeptoMail’s latest API documentation that these exact field names (and any required additional fields) match their current specifications.

</details>
<details>
<summary>src/server/services/mail.ts (1)</summary>

`3-3`: **New import usage is valid**

The PendingUser model is correctly imported for later use in deletion logic.

</details>
<details>
<summary>src/server/routes/confirm-email-address.ts (5)</summary>

`28-28`: **Streamlined retrieval of code**

Obtaining only the code from the query simplifies the logic, aligning with the new approach of retrieving the email from the DB record.

---

`30-31`: **Sensible early return**

Early exiting when the code is invalid prevents needless DB queries and clarifies the flow.

---

`38-38`: **Awaiting getPendingUser**

Good practice: the try-catch block ensures any DB retrieval error is logged and handled.

---

`69-69`: **Obtain email from the record**

Fetching the email from the pending user record helps maintain separation of concerns and reduces query parameters.

---

`117-117`: **Focus on the code only**

Returning just the sanitized code is consistent with the new approach that no longer requires an email param at this stage.

</details>

</blockquote></details>

</details>

<!-- This is an auto-generated comment by CodeRabbit for review status -->
state: COMMENTED
author_association: NONE
submitted_at: 2025-03-22T13:18:21Z
user: login: mistertfy64
state: COMMENTED
author_association: MEMBER
submitted_at: 2025-03-22T13:28:39Z
user: login: mistertfy64
state: COMMENTED
author_association: MEMBER
submitted_at: 2025-03-22T13:28:55Z
user: login: coderabbitai[bot]
state: COMMENTED
author_association: NONE
submitted_at: 2025-03-22T13:29:15Z
user: login: coderabbitai[bot]
state: COMMENTED
author_association: NONE
submitted_at: 2025-03-22T13:29:18Z

Review comments:
diff_hunk: @@ -111,12 +114,13 @@ function getDataFromQueryString(request: express.Request) {
   const decodedCode = rawCode ? decodeURIComponent(rawCode.trim()) : null;
   const sanitizedCode = sanitizeString(decodedCode) ?? null;
 
-  return [sanitizedEmail, sanitizedCode];
+  return sanitizedCode;
 }
 
-async function getPendingUser(email: string, code: string) {
+async function getPendingUser(code: string) {
+  const hashedCode = md5(code);
   const user = await PendingUser.findOne({
-    $and: [{ emailAddress: email }, { emailConfirmationCode: code }]
+    $and: [{ emailConfirmationCode: hashedCode }]
path: src/server/routes/confirm-email-address.ts
user: login: coderabbitai[bot]
body: _🛠️ Refactor suggestion_

**Use a stronger hashing algorithm**

MD5 can suffice for non-critical use cases, but consider a more secure algorithm like SHA-256 to reduce collision risks.

```diff
- const hashedCode = md5(code);
+ import crypto from "crypto";
+ const hashedCode = crypto.createHash("sha256").update(code).digest("hex");
```


> Committable suggestion skipped: line range outside the PR's diff.

<!-- This is an auto-generated reply by CodeRabbit -->
created_at: 2025-03-22T13:18:19Z
author_association: NONE
diff_hunk: @@ -262,11 +259,11 @@ async function checkCAPTCHA(responseKey: string) {
 
 function createPasswordResetRequestRecord(email: string, code: string) {
   // create password reset request record
-  const passwordResetConfirmationCode = code;
+  const hashedPasswordResetConfirmationCode = md5(code);
   const dataToSave = {
     emailAddress: email,
-    passwordResetConfirmationLink: `https://mathematicalbasedefenders.com/change-password?email=${email}&code=${passwordResetConfirmationCode}`,
-    passwordResetConfirmationCode: passwordResetConfirmationCode,
+    passwordResetConfirmationLink: `https://mathematicalbasedefenders.com/change-password?email=${email}&code=${hashedPasswordResetConfirmationCode}`,
+    passwordResetConfirmationCode: hashedPasswordResetConfirmationCode,
     expiresAt: new Date(Date.now() + 1800000).getTime()
path: src/server/routes/change-password.ts
user: login: coderabbitai[bot]
body: _⚠️ Potential issue_

**Inconsistency in link generation vs. lookup expectations.**

The function creates a link containing the hashed code (`hashedPasswordResetConfirmationCode`), but when processing the request, functions like `getPendingPasswordResetRecord` expect the unhashed code and hash it internally. This could lead to verification failures.

```diff
function createPasswordResetRequestRecord(email: string, code: string) {
  // create password reset request record
  const hashedPasswordResetConfirmationCode = md5(code);
  const dataToSave = {
    emailAddress: email,
-    passwordResetConfirmationLink: `https://mathematicalbasedefenders.com/change-password?email=${email}&code=${hashedPasswordResetConfirmationCode}`,
+    passwordResetConfirmationLink: `https://mathematicalbasedefenders.com/change-password?email=${email}&code=${code}`,
    passwordResetConfirmationCode: hashedPasswordResetConfirmationCode,
    expiresAt: new Date(Date.now() + 1800000).getTime()
  };
  return dataToSave;
}
```


<!-- suggestion_start -->

<details>
<summary>📝 Committable suggestion</summary>

> ‼️ **IMPORTANT**
> Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.

`````suggestion
function createPasswordResetRequestRecord(email: string, code: string) {
  // create password reset request record
  const hashedPasswordResetConfirmationCode = md5(code);
  const dataToSave = {
    emailAddress: email,
    passwordResetConfirmationLink: `https://mathematicalbasedefenders.com/change-password?email=${email}&code=${code}`,
    passwordResetConfirmationCode: hashedPasswordResetConfirmationCode,
    expiresAt: new Date(Date.now() + 1800000).getTime()
  };
  return dataToSave;
}
`````

</details>

<!-- suggestion_end -->

<!-- This is an auto-generated comment by CodeRabbit -->
created_at: 2025-03-22T13:18:20Z
author_association: NONE
diff_hunk: @@ -47,23 +48,13 @@ router.get(
   async (request: Request, response: Response) => {
     const query: any = url.parse(request.url, true).query;
 
-    // if invalid query, redirect to bad page.
-    // this catches if EITHER email or code is supplied, but not both.
-    if (
-      (typeof query.email === "string" || typeof query.code === "string") &&
-      !(typeof query.email === "string" && typeof query.code === "string")
-    ) {
-      response.redirect("/?erroroccurred=true");
-      return;
-    }
-
-    if (typeof query.email === "string" && typeof query.code === "string") {
+    if (typeof query.code === "string") {
       // sanitize email and code
       const email = mongoDBSanitize.sanitize(query.email) as unknown as string;
       const code = mongoDBSanitize.sanitize(query.code) as unknown as string;
 
       // find record
-      const record = await getPendingPasswordResetRecord(email, code);
+      const record = await getPendingPasswordResetRecord(code);
path: src/server/routes/change-password.ts
user: login: coderabbitai[bot]
body: _🛠️ Refactor suggestion_

**Simplification of query parameter verification may reduce security.**

The code now only checks for the presence of `code` parameter but still extracts the `email` parameter. While this simplifies the API, it potentially reduces security by requiring only one piece of information instead of two. Consider maintaining both parameters for verification or removing the now unused email extraction.


```diff
-    if (typeof query.code === "string") {
+    if (typeof query.code === "string" && typeof query.email === "string") {
       // sanitize email and code
       const email = mongoDBSanitize.sanitize(query.email) as unknown as string;
       const code = mongoDBSanitize.sanitize(query.code) as unknown as string;

       // find record
-      const record = await getPendingPasswordResetRecord(code);
+      const record = await getPendingPasswordResetRecord(code);
```


<!-- suggestion_start -->

<details>
<summary>📝 Committable suggestion</summary>

> ‼️ **IMPORTANT**
> Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.

`````suggestion
    if (typeof query.code === "string" && typeof query.email === "string") {
      // sanitize email and code
      const email = mongoDBSanitize.sanitize(query.email) as unknown as string;
      const code = mongoDBSanitize.sanitize(query.code) as unknown as string;

      // find record
      const record = await getPendingPasswordResetRecord(code);
`````

</details>

<!-- suggestion_end -->

<!-- This is an auto-generated comment by CodeRabbit -->
created_at: 2025-03-22T13:18:20Z
author_association: NONE
diff_hunk: @@ -240,9 +236,10 @@ router.post(
 );
 
 // other functions
-async function getPendingPasswordResetRecord(email: any, code: any) {
+async function getPendingPasswordResetRecord(code: string) {
+  const hashedCode = md5(code);
   const pendingPasswordResetRecord = await PendingPasswordReset.findOne({
-    $and: [{ emailAddress: email }, { passwordResetConfirmationCode: code }]
+    $and: [{ passwordResetConfirmationCode: hashedCode }]
   }).clone();
path: src/server/routes/change-password.ts
user: login: coderabbitai[bot]
body: _⚠️ Potential issue_

**Function signature change creates potential mismatch with URLs.**

The function now accepts only the `code` parameter and hashes it internally, but the URLs generated in `createPasswordResetRequestRecord` include the already hashed code. This creates a mismatch - either the function should accept the hashed code, or the URLs should include the unhashed code.

```diff
async function getPendingPasswordResetRecord(code: string) {
  const hashedCode = md5(code);
  const pendingPasswordResetRecord = await PendingPasswordReset.findOne({
    $and: [{ passwordResetConfirmationCode: hashedCode }]
  }).clone();
  return pendingPasswordResetRecord;
}
```


> Committable suggestion skipped: line range outside the PR's diff.

<!-- This is an auto-generated comment by CodeRabbit -->
created_at: 2025-03-22T13:18:20Z
author_association: NONE
diff_hunk: @@ -31,6 +31,7 @@ const { generateToken, doubleCsrfProtection } = doubleCsrf({
     return req.body["csrf-token"];
   }
 });
+const md5 = require("md5");
path: src/server/routes/change-password.ts
user: login: coderabbitai[bot]
body: _💡 Verification agent_

<details>
<summary>🧩 Analysis chain</summary>

**Consider using a more secure hashing algorithm than MD5.**

MD5 is considered cryptographically broken and vulnerable to collision attacks. Since this is being used for password reset security, consider using a more secure hashing algorithm like SHA-256 or bcrypt (which is already imported in this file).

---

🌐 Web query:

```web
Is MD5 secure for password reset tokens?
```

💡 Result:

Using MD5 for password reset tokens is **not secure** and poses significant security risks. Here's why:

### Security Issues with MD5-Based Tokens
1. **Predictability and Offline Attacks**  
   MD5 tokens derived from user data (e.g., email or sequential IDs) can be guessed or recreated offline by attackers who know the method[1][2]. For example, a token like `md5($user["email"])` allows anyone with knowledge of the system to generate valid tokens for any user.

2. **Vulnerable Hash Function**  
   MD5 is cryptographically broken and susceptible to collision and preimage attacks[3][4]. Even with a salt, MD5 lacks the computational complexity required for modern security standards.

3. **Disregards Token Unpredictability**  
   Secure tokens must be **random** and **unpredictable**. MD5-based tokens fail this requirement because their generation depends on known user attributes or weak hashing[1].

### Secure Alternatives
To implement password reset tokens safely:
1. **Generate Random Tokens**  
   Use PHP’s `random_bytes()` for cryptographically secure tokens:  
   ```php
   $token = bin2hex(random_bytes(16)); // 32-character hex string
   ```  
   This ensures randomness and unpredictability[1].

2. **Store Tokens Securely**  
   Save the token in your database, associate it with the user account, and:
   - Set a short expiration time (e.g., 1 hour).
   - Delete the token after use or expiration[1].

3. **Avoid Hashing for Token Generation**  
   Tokens do *not* need hashing if they are securely generated and stored[1]. If you must hash (e.g., for secondary validation), use a modern algorithm like SHA-256 with a unique salt.

### Key Practices to Follow  
- **Never** derive tokens from user data (emails, IDs, or timestamps)[1].  
- **Avoid** pseudo-random functions like `rand()` or `mt_rand()`[1].  
- **Use HTTPS** to prevent token interception during transmission.  

For password resets, prioritize unpredictability and secure storage over reversible or guessable methods like MD5.

Citations:

- 1: https://itnext.io/how-to-implement-password-recovery-securely-in-php-db2275ab3560
- 2: https://forums.phpfreaks.com/topic/289045-hashing-a-token-for-password-reset/
- 3: https://www.authgear.com/post/authentication-security-password-reset-best-practices-and-more
- 4: https://github.com/matomo-org/matomo/issues/5728

---



</details>

**Critical Fix: Replace Insecure MD5 Implementation**

The use of MD5 for password reset tokens is insecure due to its susceptibility to collision and predictability issues. As confirmed by recent research, MD5 does not meet the security requirements for generating token-based authentication, making it vulnerable to offline and collision attacks. Since bcrypt is already imported in this file, please remove the MD5 dependency and update the logic to use bcrypt (or another modern alternative like SHA-256 with proper salting if appropriate).

- Remove the following line:
  ```js
  const md5 = require("md5");
  ```
- Replace any usage of MD5 in token generation with bcrypt to ensure token unpredictability and resistance to cryptographic attacks.

<!-- This is an auto-generated reply by CodeRabbit -->
created_at: 2025-03-22T13:18:20Z
author_association: NONE
diff_hunk: @@ -170,17 +162,21 @@ router.post(
       return;
     }
 
-    const [email, code] = getChangePasswordQueryString(request);
+    const code = getChangePasswordQueryString(request);
+
+    const hashedCode = md5(code);
 
     const record = await PendingPasswordReset.findOne({
-      $and: [{ emailAddress: email }, { passwordResetConfirmationCode: code }]
+      $and: [{ passwordResetConfirmationCode: hashedCode }]
     }).clone();
path: src/server/routes/change-password.ts
user: login: coderabbitai[bot]
body: _💡 Verification agent_

<details>
<summary>🧩 Analysis chain</summary>

**Verify consistent handling of code and email in the reset process.**

The code now uses only the hashed code for verification, but extracting and storing email is still done elsewhere. Ensure this approach is consistent throughout the application to prevent any potential authentication bypasses.

---

🏁 Script executed:

```shell
#!/bin/bash
# Check for other places where password reset is handled
rg "passwordResetConfirmationCode" --type ts -A 5 -B 5
```

Length of output: 3957

---



</details>

**Attention: Inconsistent Verification of Reset Tokens and Email**

The current implementation only verifies the hashed confirmation code during reset, while a valid password reset record also includes an associated email address. This discrepancy may permit an authentication bypass if the reset link’s email parameter isn’t subsequently checked.

- In `src/server/routes/change-password.ts`, the lookup for a pending password reset record is performed solely using the hashed reset code.
- In contrast, when creating the reset record, both `emailAddress` and `passwordResetConfirmationCode` are stored, and the reset link includes the email.
- To ensure security consistency, please verify that either:
  - The email is also validated against the stored `emailAddress` (by extracting it from the request and incorporating it into the query), or
  - The email parameter in the reset link is removed if it isn’t required later in the process.

Review and update the implementation as needed to prevent possible authentication bypasses.

<!-- This is an auto-generated comment by CodeRabbit -->
created_at: 2025-03-22T13:18:20Z
author_association: NONE
diff_hunk: @@ -31,6 +31,7 @@ const { generateToken, doubleCsrfProtection } = doubleCsrf({
     return req.body["csrf-token"];
   }
 });
+const md5 = require("md5");
path: src/server/routes/change-password.ts
user: login: mistertfy64
body: Closed: Replaced with SHA-256.
created_at: 2025-03-22T13:28:39Z
author_association: MEMBER
diff_hunk: @@ -111,12 +114,13 @@ function getDataFromQueryString(request: express.Request) {
   const decodedCode = rawCode ? decodeURIComponent(rawCode.trim()) : null;
   const sanitizedCode = sanitizeString(decodedCode) ?? null;
 
-  return [sanitizedEmail, sanitizedCode];
+  return sanitizedCode;
 }
 
-async function getPendingUser(email: string, code: string) {
+async function getPendingUser(code: string) {
+  const hashedCode = md5(code);
   const user = await PendingUser.findOne({
-    $and: [{ emailAddress: email }, { emailConfirmationCode: code }]
+    $and: [{ emailConfirmationCode: hashedCode }]
path: src/server/routes/confirm-email-address.ts
user: login: mistertfy64
body: Closed: Replaced with SHA-256.
created_at: 2025-03-22T13:28:55Z
author_association: MEMBER
diff_hunk: @@ -111,12 +114,13 @@ function getDataFromQueryString(request: express.Request) {
   const decodedCode = rawCode ? decodeURIComponent(rawCode.trim()) : null;
   const sanitizedCode = sanitizeString(decodedCode) ?? null;
 
-  return [sanitizedEmail, sanitizedCode];
+  return sanitizedCode;
 }
 
-async function getPendingUser(email: string, code: string) {
+async function getPendingUser(code: string) {
+  const hashedCode = md5(code);
   const user = await PendingUser.findOne({
-    $and: [{ emailAddress: email }, { emailConfirmationCode: code }]
+    $and: [{ emailConfirmationCode: hashedCode }]
path: src/server/routes/confirm-email-address.ts
user: login: coderabbitai[bot]
body: @mistertfy64 Great to hear you've implemented SHA-256 instead of MD5! That's a much more secure choice for hashing the confirmation codes. Thank you for addressing this security improvement.

<!-- This is an auto-generated reply by CodeRabbit -->
created_at: 2025-03-22T13:29:15Z
author_association: NONE
diff_hunk: @@ -31,6 +31,7 @@ const { generateToken, doubleCsrfProtection } = doubleCsrf({
     return req.body["csrf-token"];
   }
 });
+const md5 = require("md5");
path: src/server/routes/change-password.ts
user: login: coderabbitai[bot]
body: <details>
<summary>🧩 Analysis chain</summary>

🏁 Script executed:
```
#!/bin/bash
# Check for any remaining MD5 usage in the codebase
echo "Checking for MD5 usage in the code:"
rg -i "md5" --type ts --type js --type json

# Check for SHA-256 usage to confirm replacement
echo -e "\nChecking for SHA-256 usage:"
rg -i "sha256" --type ts --type js
```

Length of output: 867

---



</details>

@mistertfy64 Great work! I've verified that all MD5 references have been completely removed from the codebase and properly replaced with the more secure SHA-256 implementation. This is a significant security improvement for your password reset functionality, as SHA-256 provides much better protection against collision attacks.

<!-- This is an auto-generated reply by CodeRabbit -->
created_at: 2025-03-22T13:29:18Z
author_association: NONE

PR comments:
user: login: mistertfy64
created_at: 2025-03-22T13:12:20Z
body: @coderabbitai review
author_association: MEMBER
user: login: coderabbitai[bot]
created_at: 2025-03-22T13:18:16Z
body: <!-- This is an auto-generated comment: summarize by coderabbit.ai -->
<!-- walkthrough_start -->

## Walkthrough

This pull request updates configuration files and server logic. The `.vscode/settings.json` now includes an additional spell-check word, and `package.json` adds the `md5` and `zeptomail` dependencies. The mail-sending functionality in the core mail module and mail service is refactored to use the `zeptomail` library with asynchronous handling and improved error logging. Additionally, password reset and email confirmation routes have been modified to use MD5 hashing for codes and simplify query parameter handling, and the registration flow now conditionally redirects based on the mail service result.

## Changes

| File(s) | Change Summary |
|---------|----------------|
| `.vscode/settings.json`<br>`package.json` | **Configuration Updates:** Added "zeptomail" to the spell-check words; introduced new dependencies `"md5": "^2.3.0"` and `"zeptomail": "^6.2.0"`. |
| `src/server/core/mail.ts`<br>`src/server/services/mail.ts` | **Mail Service Changes:** Replaced the `nodemailer` implementation with the `zeptomail` library; updated email sending functions to use structured message objects; introduced asynchronous handling with JSON error logging and conditional deletion of pending user records on failure. |
| `src/server/routes/change-password.ts`<br>`src/server/routes/confirm-email-address.ts` | **Code Flow Modifications:** Simplified query parameter handling by removing the email parameter; applied MD5 hashing to reset and confirmation codes; updated function signatures to reflect these changes. |
| `src/server/routes/register.ts` | **Registration Flow Update:** Captured the result from the mail sending function in a variable (`mailResult`) and added a conditional redirect when the email sending fails. |
| `src/server/services/user.ts` | **User Service Change:** Modified the `addUnverifiedUser` function to hash the email confirmation code with MD5 before saving. |

## Sequence Diagram(s)

```mermaid
sequenceDiagram
    participant U as User
    participant R as Registration Route
    participant M as MailService
    participant Z as Zeptomail API
    participant DB as PendingUser Database

    U->>R: Submit registration details
    R->>M: Call sendMailToUnverifiedUser(...)
    M->>Z: Send verification email using Zeptomail
    Z-->>M: Return email send result
    alt Email send fails
        M->>DB: Delete pending user record
        M-->>R: Return failure response
    else Email send succeeds
        M-->>R: Return success response
    end
    R->>U: Redirect based on mailResult outcome
```

```mermaid
sequenceDiagram
    participant U as User
    participant CP as Change-Password Endpoint
    participant H as MD5 Library
    participant DB as Password Reset Database

    U->>CP: GET /change-password?code=rawCode
    CP->>H: Hash the provided code
    H-->>CP: Return hashed code
    CP->>DB: Query pending reset record with hashed code
    DB-->>CP: Return pending reset record (if exists)
    CP->>U: Render password reset page
```

<!-- walkthrough_end -->
<!-- internal state start -->


<!-- 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-->

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<!-- finishing_touch_checkbox_start -->

<details>
<summary>✨ Finishing Touches</summary>

- [ ] <!-- {"checkboxId": "7962f53c-55bc-4827-bfbf-6a18da830691"} --> 📝 Generate Docstrings

</details>

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