@jnode/server-account

Official account system for JNS (Node.js). It provides a full-stack solution for user registration, authentication via signed tokens, and account management.

Installation

npm i @jnode/server-account

Quick start

Import

const { AccountManager, routerConstructors: acr, handlerConstructors: ach } = require('@jnode/server-account');
const { createServer, routerConstructors: r, handlerConstructors: h } = require('@jnode/server');

Start a basic account server

const manager = new AccountManager();

const server = createServer(
  // Use JSONErrorMessage to catch errors and return structured JSON
  acr.JSONErrorMessage(
    r.Path(404, {
      '/api/register': ach.Register(manager),
      '/api/login': ach.Login(manager),
      // Protect sensitive routes using AccountTokenVerify
      '/api/user': acr.AccountTokenVerify(
        manager,
        r.Path(null, {
          '@GET /profile': async (ctx, env) => {
            const data = await ctx.identity.account.data();
            return h.JSON({ 
              status: 200, 
              account: data.account, 
              displayName: data.displayName 
            }).handle(ctx, env);
          },
          '@POST /reset-password': ach.ResetPassword(manager),
          '@POST /delete': ach.DeleteAccount(manager)
        }),
        401 // Fail handler if not logged in
      )
    })
  )
);

server.listen(8080);

How it works?

@jnode/server-account defines a standardized account protocol:

1. Manager: Logic core. Handles password hashing (using scrypt) and data persistence.
2. Account: A wrapper class for specific user data access.
3. Router: Middlewares to verify identity. AccountTokenVerify injects the Account instance into ctx.identity.account.
4. Handler: Web controllers that consume JSON requests and interact with the Manager.

---

Reference

Class: account.AccountManager

The core manager for handling account lifecycle.

new account.AccountManager([data, options])

• data <Map> Account storage. Default: new Map().
• options <Object>
  • authService <AuthService> Custom auth service.
  • publicKey / privateKey <string> RSA keys for tokens.

manager.register(account, email, password, displayName)

Registers a user. Performs strict format validation (see Validation Rules).

manager.login(account, password)

Verifies credentials. account can be the username or email.

manager.resetAccountPassword(id, password)

Updates password and sets securityReset to now, invalidating all old tokens.

Class: account.Account

account.data()

• Returns: <Promise> | <Object>
  • id, account, email, displayName, createdAt, permissions, securityReset.

---

Web API Format (Built-in Handlers)

The following handlers expect JSON input and return JSON output.

Validation Rules

For Register and ResetPassword handlers:

• account: 4-32 characters, alphanumeric (\w).
• email: Standard email regex.
• password: 8-64 characters, must include:
  • Uppercase & Lowercase letters.
  • Numbers.
  • Symbols (!@#$%^&* etc.).
• displayName: 2-32 characters, sanitized (no control codes).

Handler: Register(manager[, options])

• Request Method: POST (usually)

• Request Body:

  {
    "account": "username",
    "email": "user@example.com",
    "password": "SecurePassword123!",
    "displayName": "My Name"
  }

• Success Response: 200 OK

  {
    "status": 200,
    "id": "username",
    "account": "username",
    "displayName": "My Name",
    "createdAt": "2023-10-27T..."
  }

• Cookie: Sets jnsat (HttpOnly).

Handler: Login(manager[, options])

• Request Body:

  {
    "account": "username_or_email",
    "password": "SecurePassword123!"
  }

• Success Response: Same as Register.

• Cookie: Sets jnsat (HttpOnly).

Handler: ResetPassword(manager[, options])

Requires authentication via AccountTokenVerify.

• Request Body:

  {
    "id": "current_user_id",
    "oldPassword": "CurrentPassword123!",
    "newPassword": "NewSecurePassword456!"
  }

• Success Response: {"status": 200}.

• Cookie: Refreshes jnsat with a new cre (creation) timestamp.

Handler: DeleteAccount(manager)

Requires authentication via AccountTokenVerify.

• Request Body:

  {
    "id": "current_user_id",
    "password": "CurrentPassword123!"
  }

• Success Response: {"status": 200}.

---

Built-in routers

Router: AccountTokenVerify(manager, pass, fail)

Verifies the jnsat cookie.

• If Pass: Sets ctx.identity.account and ctx.identity.token.
• If Fail: Calls fail handler (e.g., 401).
• Security: Automatically rejects tokens issued before the account's last securityReset.

Router: JSONErrorMessage(next)

Catches errors thrown during routing/handling.

• Format:

  {
    "status": 401,
    "code": "ACC_NOT_FOUND",
    "message": "Account not found."
  }

Router: TokenVerify(service, pass, fail[, by])

Generic token verifier. by can be a function to extract tokens from headers or other sources.