Supabase Authentication Implementation - COMPLETED

Overview

This document records the successful implementation of Supabase authentication in @knowcode/doc-builder v1.7.5+. All references to the old insecure authentication system have been removed.

What Was Achieved

1. Complete Removal of Old System

Removed all client-side credential checking
Deleted old auth.js files
Cleaned up configuration options
Updated all documentation

2. Supabase Integration

JWT-based authentication
Row Level Security (RLS)
Multi-user support
Fine-grained access control
Session management

3. Default Behavior Change

Authentication now disabled by default
Public documentation works out of the box
Authentication must be explicitly enabled

Current Architecture

graph TD A[User Request] --> B{Auth Enabled?} B -->|No| C[Show Content] B -->|Yes| D[Check Supabase JWT] D --> E{Valid Token?} E -->|No| F[Login Page] E -->|Yes| G{Has Access?} G -->|Yes| H[Show Content] G -->|No| I[Access Denied] style C fill:#90EE90 style H fill:#90EE90 style I fill:#FFB6C1

Configuration

Public Site (Default)

// No configuration needed - public by default!

Protected Site

module.exports = {
  features: {
    authentication: 'supabase'  // Must explicitly enable
  },
  auth: {
    supabaseUrl: 'https://xxx.supabase.co',  // Optional - has defaults
    supabaseAnonKey: 'your-anon-key'         // Optional - has defaults
    // No siteId needed - uses domain automatically!
  }
};

Security Improvements

Old System	New System
Credentials in JavaScript	JWT tokens
Client-side validation	Server-side validation
Single user	Unlimited users
Password in config	Supabase Auth
No access control	Row Level Security

CLI Commands

Build Commands

# Public site (default)
npx @knowcode/doc-builder build

# Force public (override config)
npx @knowcode/doc-builder build --no-auth

# With authentication (from config)
npx @knowcode/doc-builder build

Deploy Commands

# Deploy public site
npx @knowcode/doc-builder deploy --no-auth

# Deploy with auth (from config)
npx @knowcode/doc-builder deploy

Migration Guide

For users upgrading from versions with the old auth:

Remove old configuration:

// DELETE THIS:
auth: {
  username: 'admin',
  password: 'password'
}

For public sites: No action needed - works by default
For protected sites: Follow the Supabase Authentication Guide

Files Changed

Removed

/assets/js/auth.js - Old client auth script
All references to username/password auth

Updated

/lib/config.js - Removed old auth options
/lib/core-builder.js - Supabase integration only
/cli.js - Updated help text
All documentation files

Added

/lib/supabase-auth.js - New auth module
Supabase login/logout pages
JWT-based auth checking

Breaking Changes

v1.7.5+: Authentication disabled by default
Old username/password config no longer works
Must explicitly enable Supabase auth
No automatic migration of credentials

Best Practices

Default to public - Most docs should be public
Use environment variables for Supabase credentials
Regular access audits - Review user permissions
Monitor usage - Check Supabase dashboard
Keep updated - Use latest @knowcode/doc-builder

Support

Documentation: Authentication Guide
Issues: GitHub Issues
Supabase: Supabase Documentation

Conclusion

The implementation is complete. @knowcode/doc-builder now offers:

Secure authentication when needed
Public documentation by default
Enterprise-grade security with Supabase
Clear migration path from old system

No traces of the old authentication system remain in the codebase.