NoSQL Authentication & Authorization System

A comprehensive, enterprise-grade authentication and authorization system built specifically for NoSQL, designed to run on Cloudflare's edge infrastructure with security-first principles.

🔐 Security Features

Authentication Methods

• API Key Authentication - Secure API keys with scoping and expiration
• JWT Token Authentication - Stateless token-based authentication
• OAuth2 Integration - GitHub and Google OAuth support
• Service Account Tokens - Machine-to-machine authentication
• Temporary Access Tokens - Short-lived tokens for specific purposes
• Certificate-based Authentication - X.509 certificate support

Authorization System

• Role-Based Access Control (RBAC) - Hierarchical role system
• Database-level Permissions - Control access to entire databases
• Collection-level Permissions - Granular collection access
• Document-level Security Rules - Dynamic document access control
• Field-level Security - Hide/mask sensitive fields
• Policy-based Access Control - Dynamic security policies

Security Features

• Token Rotation & Expiry - Automatic token lifecycle management
• Rate Limiting - Per-user/IP/API key rate limiting
• Comprehensive Audit Logging - Complete security audit trail
• Suspicious Activity Detection - Real-time threat detection
• Geographic Restrictions - Location-based access control
• Multi-Factor Authentication - TOTP, SMS, email MFA support

Compliance & Governance

• GDPR Compliance - Data protection and privacy controls
• SOC 2 Type II - Security controls and audit trails
• Data Encryption - AES-256 encryption at rest and in transit
• Secure Key Storage - Cloudflare Zero Trust integration
• Data Retention Policies - Automated data lifecycle management

🏗️ Architecture

Core Components

src/auth/
├── types/auth.ts              # Core type definitions
├── services/
│   ├── authentication.ts     # Authentication service
│   ├── authorization.ts      # Authorization service
│   ├── rate-limiting.ts      # Rate limiting service
│   └── audit.ts              # Audit logging service
├── utils/
│   └── crypto.ts             # Cryptographic utilities
├── middleware/
│   └── auth-middleware.ts    # Express/Worker middleware
├── api/
│   └── user-management.ts    # User management APIs
├── mcp/
│   └── mcp-security.ts       # MCP integration security
└── schema/
    └── auth-schema.sql       # Database schema

Security Architecture

graph TB
    A[Client Request] --> B[Auth Middleware]
    B --> C{Authenticated?}
    C -->|No| D[Return 401]
    C -->|Yes| E[Rate Limiting]
    E --> F{Within Limits?}
    F -->|No| G[Return 429]
    F -->|Yes| H[Authorization Check]
    H --> I{Authorized?}
    I -->|No| J[Return 403]
    I -->|Yes| K[Security Policies]
    K --> L{Policies Pass?}
    L -->|No| M[Return 403]
    L -->|Yes| N[Audit Log]
    N --> O[Process Request]

🚀 Quick Start

1. Installation

import { NoSQLAuth, createNoSQLAuth } from './auth';

// Initialize with Cloudflare bindings
const auth = createNoSQLAuth(env.D1_DATABASE, env.KV_NAMESPACE, env);

2. Basic Usage

// Protect a route
export default {
  async fetch(request: Request, env: Env, ctx: ExecutionContext): Promise<Response> {
    const auth = createNoSQLAuth(env.D1, env.KV, env);
    
    // Authenticate request
    const authResult = await auth.middleware.authenticate(request, env, ctx);
    
    if (authResult instanceof Response) {
      return authResult; // Authentication failed
    }
    
    const authContext = authResult;
    
    // Your protected logic here
    return new Response('Authenticated successfully!');
  }
};

3. Route Protection

import { protectRoute, requirePermission } from './auth';

// Simple authentication
const protectedHandler = protectRoute(
  async (request, env, ctx, authContext) => {
    return new Response(`Hello, ${authContext.user?.email}!`);
  },
  env.D1,
  env.KV
);

// Permission-based protection
const adminHandler = requirePermission(
  'user',
  'admin',
  async (request, env, ctx, authContext) => {
    return new Response('Admin area');
  },
  env.D1,
  env.KV
);

📊 Database Schema

The system uses a comprehensive database schema designed for security and performance:

Core Tables

• users - User accounts and profiles
• api_keys - API key management
• jwt_tokens - JWT token tracking
• roles - Role definitions
• user_roles - User-role assignments
• permissions - Permission definitions

Security Tables

• audit_logs - Complete audit trail
• security_events - Security incident tracking
• security_policies - Dynamic security policies
• rate_limits - Rate limiting configuration

Initialize the schema:

-- Run the schema file
.read src/auth/schema/auth-schema.sql

🔑 Authentication Examples

API Key Authentication

// Generate API key
const { apiKey, keyRecord } = await auth.authService.generateApiKey(
  'user-123',
  'My Application Key',
  ['read', 'write'],
  [{ resource: 'database', action: 'read', effect: 'allow' }]
);

// Use API key
const response = await fetch('/api/data', {
  headers: {
    'X-API-Key': apiKey
  }
});

JWT Authentication

// Login and get tokens
const { access, refresh } = await auth.authService.generateTokenPair(
  user,
  request
);

// Use access token
const response = await fetch('/api/data', {
  headers: {
    'Authorization': `Bearer ${access}`
  }
});

OAuth2 Integration

// Initiate OAuth
const { authUrl, state } = await auth.authService.initiateOAuth(
  'github',
  'https://myapp.com/callback'
);

// Complete OAuth
const { user, tokens } = await auth.authService.completeOAuth(
  'github',
  code,
  state,
  'https://myapp.com/callback',
  request
);

🛡️ Authorization Examples

Role-Based Access Control

// Check user permissions
const hasAccess = await auth.authzService.checkPermission(
  authContext,
  'database',
  'read',
  'my-database-id'
);

// Require specific permission
await auth.authzService.requirePermission(
  authContext,
  'collection',
  'write',
  'my-collection-id'
);

Dynamic Security Rules

// Document-level security
const canAccess = await auth.authzService.checkDocumentPermission(
  authContext,
  'my-database',
  'users',
  'doc-123',
  'read',
  documentData
);

// Field-level filtering
const filteredDoc = await auth.authzService.filterDocumentFields(
  authContext,
  'my-database',
  'users',
  originalDocument
);

📊 Rate Limiting

Configure Rate Limits

// Set custom rate limit
await auth.rateLimitService.setRateLimit({
  id: 'api-user-123',
  scope: 'user',
  scopeId: 'user-123',
  limits: {
    requestsPerMinute: 100,
    requestsPerHour: 1000
  },
  action: 'reject',
  resetInterval: 60
});

// Check rate limit
await auth.rateLimitService.checkRateLimit(
  'user:123',
  request
);

📝 Audit Logging

Security Events

// Log authentication event
await auth.auditService.logAuthEvent({
  eventType: 'user.login',
  result: 'success',
  userId: user.id,
  ipAddress: request.headers.get('CF-Connecting-IP'),
  userAgent: request.headers.get('User-Agent')
});

// Log data access
await auth.auditService.logDataAccessEvent(
  authContext,
  { type: 'database', id: 'my-db', name: 'My Database' },
  'read',
  'success'
);

Query Audit Logs

// Get audit logs
const { logs, totalCount } = await auth.auditService.queryAuditLogs({
  startTime: new Date('2024-01-01'),
  endTime: new Date(),
  userId: 'user-123',
  eventType: 'user.login',
  limit: 100
});

// Generate compliance report
const report = await auth.auditService.generateComplianceReport(
  'SOC2',
  new Date('2024-01-01'),
  new Date(),
  'org-123'
);

🤖 MCP Integration

Agent Authentication

// Authenticate MCP agent
const { authContext, agent, session } = await auth.mcpSecurity.authenticateAgent(
  {
    agentId: 'agent-123',
    apiKey: 'key_abc123'
  },
  request
);

// Authorize tool call
const toolCall = await auth.mcpSecurity.authorizeToolCall(
  session,
  'query_structured',
  { database: 'my-db', query: 'SELECT * FROM users' }
);

Agent Security

// Check resource access
const canAccess = await auth.mcpSecurity.authorizeResourceAccess(
  session,
  'database',
  'my-database-id',
  'read'
);

// Memory operation authorization
await auth.mcpSecurity.authorizeMemoryOperation(
  session,
  'write',
  'agent:123:conversation-history',
  1024 // bytes
);

🏢 User Management

User Registration

// Register new user
const response = await auth.userAPI.registerUser(
  new Request('/register', {
    method: 'POST',
    body: JSON.stringify({
      email: '[email protected]',
      password: 'SecurePassword123!',
      fullName: 'John Doe'
    })
  })
);

Profile Management

// Update user profile
const response = await auth.userAPI.updateUserProfile(
  new Request('/users/123', {
    method: 'PATCH',
    body: JSON.stringify({
      fullName: 'John Smith',
      avatar: 'https://example.com/avatar.jpg'
    })
  }),
  authContext
);

MFA Setup

// Setup TOTP
const response = await auth.userAPI.setupTOTP(
  new Request('/users/mfa/totp', { method: 'POST' }),
  authContext
);

// Verify and enable
const verifyResponse = await auth.userAPI.verifyTOTP(
  new Request('/users/mfa/verify', {
    method: 'POST',
    body: JSON.stringify({ code: '123456' })
  }),
  authContext
);

⚙️ Configuration

Environment Variables

# Required
JWT_SIGNING_SECRET=your-jwt-secret
API_SIGNING_SECRET=your-api-secret
ENCRYPTION_KEY=your-encryption-key

# OAuth (optional)
GITHUB_CLIENT_ID=your-github-client-id
GITHUB_CLIENT_SECRET=your-github-secret
GOOGLE_CLIENT_ID=your-google-client-id
GOOGLE_CLIENT_SECRET=your-google-secret

# Email service (optional)
SMTP_HOST=smtp.example.com
[email protected]
SMTP_PASS=your-smtp-password

Security Configuration

const config = {
  passwordPolicy: {
    minLength: 12,
    requireUppercase: true,
    requireLowercase: true,
    requireNumbers: true,
    requireSpecialChars: true,
    preventReuse: 10,
    maxAge: 90
  },
  mfaRequired: true,
  maxLoginAttempts: 3,
  lockoutDuration: 30,
  auditRetentionDays: 2555, // 7 years
  gdprEnabled: true
};

🔒 Security Best Practices

1. Strong Authentication

• Use strong API keys (32+ characters)
• Enable MFA for all admin accounts
• Rotate keys regularly
• Monitor for suspicious activity

2. Authorization

• Follow principle of least privilege
• Use role-based access control
• Implement defense in depth
• Regular permission audits

3. Rate Limiting

• Set appropriate limits per tier
• Monitor for abuse patterns
• Implement burst capacity
• Use distributed rate limiting

4. Audit & Monitoring

• Log all security events
• Monitor for anomalies
• Set up real-time alerts
• Regular compliance reviews

🚨 Security Considerations

Production Deployment

1. Environment Secrets

   • Use Cloudflare Workers secrets
   • Rotate secrets regularly
   • Never commit secrets to code

2. Network Security

   • Enable HTTPS only
   • Use Cloudflare security features
   • Implement IP allowlisting where appropriate

3. Monitoring

   • Set up security alerts
   • Monitor audit logs
   • Track suspicious patterns
   • Regular security reviews

Compliance Requirements

• GDPR: Data protection and privacy
• SOC 2: Security controls and processes
• HIPAA: Healthcare data protection (if applicable)
• PCI DSS: Payment data security (if applicable)

📈 Performance

The authentication system is optimized for edge performance:

• Sub-millisecond authentication with cached permissions
• Distributed rate limiting across edge locations
• Efficient audit logging with batching
• Memory-optimized permission checking
• CDN-friendly static security policies

🧪 Testing

// Example test
import { NoSQLAuth } from './auth';

describe('Authentication', () => {
  it('should authenticate valid API key', async () => {
    const auth = new NoSQLAuth(testConfig);
    const request = new Request('/', {
      headers: { 'X-API-Key': 'valid-key' }
    });
    
    const result = await auth.middleware.authenticate(request, env, ctx);
    expect(result).not.toBeInstanceOf(Response);
  });
});

📚 API Reference

Core Classes

• NoSQLAuth - Main authentication system
• AuthMiddleware - Request authentication middleware
• AuthenticationService - Authentication methods
• AuthorizationService - Permission checking
• AuditService - Security logging
• CryptoService - Cryptographic operations

Utility Functions

• createNoSQLAuth() - Quick setup
• protectRoute() - Route protection
• requirePermission() - Permission-based protection

🤝 Contributing

1. Follow security-first development practices
2. Write comprehensive tests
3. Document security implications
4. Use secure coding guidelines
5. Regular security reviews

📄 License

This authentication system is part of NoSQL and follows the same licensing terms.

🆘 Support

For security issues or questions:

• Review the security documentation
• Check audit logs for issues
• Follow incident response procedures
• Contact security team for critical issues

⚠️ Security Notice: This system handles sensitive authentication data. Always follow security best practices and conduct regular security audits.