API-Explorer-II/OAUTH2-IMPLEMENTATION-STATUS.md

OAuth2/OIDC Implementation Status

API Explorer II - Progress Tracker

Last Updated: 2024-11-29
Branch: oauth2
Status: ✅ Backend Core Complete - Ready for Testing

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📊 Overall Progress: 60% Complete

Phase Progress

• ✅ Phase 1: Preparation & Setup (100%)
• ✅ Phase 2: Backend OAuth2 Implementation (100%)
• ⬜ Phase 3: Environment Configuration (50%)
• ⬜ Phase 4: Frontend Updates (0%)
• ⬜ Phase 5: Testing (0%)
• ⬜ Phase 6: Documentation & Migration (33%)

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✅ Completed Work

Phase 1: Preparation & Setup

Status: ✅ Complete
Commits: ba783c0, 86295f8

Documentation (100%)

• ✅ OAUTH2-README.md - Overview and navigation guide
• ✅ OAUTH2-QUICK-START.md - Quick setup guide
• ✅ OAUTH2-OIDC-INTEGRATION-PREP.md - Complete implementation guide

Dependencies (100%)

• ✅ arctic - Modern OAuth2/OIDC client library
• ✅ jsonwebtoken - JWT parsing and validation
• ✅ @types/jsonwebtoken - TypeScript definitions

Backend Core Infrastructure (100%)

• ✅ server/utils/pkce.ts - PKCE utilities (RFC 7636)

  • Code verifier generation
  • Code challenge generation (S256)
  • State parameter generation
  • Validation functions

• ✅ server/services/OAuth2Service.ts - OAuth2/OIDC client

  • OIDC discovery document fetching
  • Authorization URL creation with PKCE
  • Token exchange (code → tokens)
  • Token refresh flow
  • UserInfo endpoint integration
  • Token expiration checking
  • Comprehensive error handling

• ✅ server/middlewares/OAuth2AuthorizationMiddleware.ts

  • Authorization flow initiation
  • PKCE parameter generation
  • Session state management
  • Redirect to OIDC provider

• ✅ server/middlewares/OAuth2CallbackMiddleware.ts

  • State parameter validation (CSRF protection)
  • Authorization code exchange
  • User info retrieval
  • Session storage
  • Error handling with user-friendly pages
  • Flow timeout protection (10 minutes)

• ✅ server/controllers/OAuth2ConnectController.ts

  • /oauth2/connect endpoint
  • Login initiation

• ✅ server/controllers/OAuth2CallbackController.ts

  • /oauth2/callback endpoint
  • OIDC provider callback handling

Phase 2: Backend Integration

Status: ✅ Complete
Commit: b2df3a9

Application Integration (100%)

• ✅ server/app.ts - OAuth2Service initialization
  • Conditional OAuth2 initialization
  • OIDC discovery on startup
  • Feature flag support (VITE_USE_OAUTH2)
  • Error handling and logging
  • Graceful fallback if provider unavailable

User Management (100%)

• ✅ server/controllers/UserController.ts - Dual auth support
  • OAuth2 user session detection
  • OAuth 1.0a fallback
  • Automatic token refresh
  • Unified user data format
  • Enhanced logout (clears both auth types)

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🚧 In Progress

Phase 3: Environment Configuration

Status: 🟡 Partial (50%)
Remaining: Production environment examples

Completed

• ✅ env_ai - Development configuration
  • OAuth2 environment variables
  • Feature flag documentation
  • OBP-OIDC configuration

TODO

• ⬜ .env.example update
• ⬜ Production configuration guide
• ⬜ Docker environment variables

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⬜ Remaining Work

Phase 4: Frontend Updates (0%)

Estimated Time: 1 week

Required Changes

• ⬜ src/components/HeaderNav.vue

  • Update login button URL (conditional)
  • Update logout button URL
  • Add OAuth2 status indicator (optional)

• ⬜ src/components/ChatWidget.vue

  • Update authentication check
  • Support OAuth2 user format

• ⬜ Frontend user state management

  • Handle OAuth2 user format
  • Token refresh on API calls
  • Session expiry handling

Phase 5: Testing (0%)

Estimated Time: 1 week

Unit Tests

• ⬜ server/test/pkce.test.ts

  • Test code verifier generation
  • Test code challenge generation
  • Test state generation
  • Test validation functions

• ⬜ server/test/OAuth2Service.test.ts

  • Test OIDC discovery
  • Test authorization URL creation
  • Test token exchange
  • Test token refresh
  • Test user info retrieval

Integration Tests

• ⬜ Full OAuth2 login flow
• ⬜ Token refresh flow
• ⬜ Logout flow
• ⬜ Error scenarios
• ⬜ Session timeout

Manual Testing

• ⬜ Login with OBP-OIDC
• ⬜ Session persistence
• ⬜ Token auto-refresh
• ⬜ Logout
• ⬜ Multiple browsers/devices
• ⬜ Error handling

Phase 6: Documentation (33%)

Estimated Time: Ongoing

Completed

• ✅ OAuth2 preparation documents
• ✅ Quick start guide
• ✅ Implementation tracking (this file)

TODO

• ⬜ Update main README.md
• ⬜ Create migration guide
• ⬜ Create troubleshooting guide
• ⬜ Update deployment documentation
• ⬜ Create admin guide

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🎯 Next Steps (Priority Order)

Immediate (This Week)

1. Test Backend Implementation

   • Start OBP-OIDC server
   • Configure environment variables
   • Test /oauth2/connect endpoint
   • Test /oauth2/callback flow
   • Verify session storage
   • Test /user/current with OAuth2

2. Update Frontend Components

   • Update HeaderNav.vue login button
   • Test login flow end-to-end
   • Verify user info display

Short Term (Next Week)

3. Write Tests

   • Unit tests for PKCE utilities
   • Unit tests for OAuth2Service
   • Integration tests for full flow

4. Complete Documentation

   • Update main README
   • Create migration guide
   • Troubleshooting guide

Medium Term

5. Production Readiness
   • Security audit
   • Performance testing
   • Production deployment guide
   • Monitoring setup

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📝 Technical Details

Endpoints Added

• GET /oauth2/connect - Initiate OAuth2 login
• GET /oauth2/callback - Handle OIDC callback

Endpoints Modified

• GET /user/current - Now supports both auth methods
• GET /user/logoff - Clears both OAuth 1.0a and OAuth2 sessions

Session Keys Used

OAuth2:

• oauth2_state - CSRF protection state
• oauth2_code_verifier - PKCE verifier
• oauth2_flow_timestamp - Flow start time
• oauth2_redirect_page - Post-auth redirect
• oauth2_access_token - JWT access token
• oauth2_refresh_token - Refresh token
• oauth2_id_token - OpenID Connect ID token
• oauth2_user - User information
• oauth2_user_info - Full UserInfo response

OAuth 1.0a (unchanged):

• clientConfig - OAuth 1.0a configuration

Environment Variables

# Feature Flag
VITE_USE_OAUTH2=false|true

# Client Credentials
VITE_OBP_OAUTH2_CLIENT_ID=obp-explorer-ii-client
VITE_OBP_OAUTH2_CLIENT_SECRET=<secret>
VITE_OBP_OAUTH2_REDIRECT_URL=http://localhost:5173/oauth2/callback

# OIDC Provider
VITE_OBP_OAUTH2_WELL_KNOWN_URL=http://127.0.0.1:9000/obp-oidc/.well-known/openid-configuration

# Optional
VITE_OBP_OAUTH2_TOKEN_REFRESH_THRESHOLD=300

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🔐 Security Features Implemented

• ✅ PKCE (Proof Key for Code Exchange) - RFC 7636
• ✅ State parameter for CSRF protection
• ✅ Code verifier validation (43-128 chars, valid charset)
• ✅ State parameter validation (min 32 chars)
• ✅ Flow timeout protection (10 minute max)
• ✅ Token expiration checking
• ✅ Automatic token refresh
• ✅ Secure session storage (Redis)
• ✅ XSS protection in error pages
• ✅ Comprehensive error handling

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🐛 Known Issues / TODO

High Priority

• Test with actual OBP-OIDC server
• Verify token refresh works correctly
• Test session timeout behavior
• Verify CSRF protection

Medium Priority

• Add rate limiting to OAuth2 endpoints
• Add metrics/monitoring
• Improve error messages
• Add request ID tracking

Low Priority

• Add OAuth2 status page
• Add admin dashboard for sessions
• Add token introspection endpoint
• Support multiple OIDC providers

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📊 Code Statistics

Total Files Created: 8
Total Lines Added: ~1,800
Languages: TypeScript
Framework: Express.js, routing-controllers
Dependencies Added: 2 (arctic, jsonwebtoken)

Backend Implementation:
- Services: 1 (OAuth2Service)
- Controllers: 2 (Connect, Callback)
- Middlewares: 2 (Authorization, Callback)
- Utils: 1 (PKCE)

Documentation:
- Preparation docs: 3 files (~3,300 lines)
- Implementation tracking: 1 file (this file)

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🧪 Testing Checklist

Backend Testing

• PKCE utilities generate valid parameters
• OAuth2Service initializes from well-known URL
• Authorization URL contains required parameters
• Callback validates state parameter
• Token exchange works correctly
• User info retrieval works
• Token refresh works
• Session cleanup on logout

Integration Testing

• Full login flow completes successfully
• Redirect back to original page works
• Session persists across requests
• Token auto-refresh works
• Logout clears all session data
• Error handling shows user-friendly messages

Security Testing

• State parameter prevents CSRF
• PKCE prevents code interception
• Flow timeout prevents replay
• Tokens stored securely in session
• XSS protection in error pages

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📞 Support & Resources

Getting Help

• Documentation: See OAUTH2-QUICK-START.md for setup
• Detailed Guide: See OAUTH2-OIDC-INTEGRATION-PREP.md
• Slack: #obp-development
• Email: dev@tesobe.com

Quick Commands

# Start OBP-OIDC
cd ~/Documents/workspace_2024/OBP-OIDC
./run-server.sh

# Start API Explorer II
cd ~/Documents/workspace_2024/API-Explorer-II
npm run dev

# Test OIDC discovery
curl http://localhost:9000/obp-oidc/.well-known/openid-configuration

# Check Redis
redis-cli ping
redis-cli KEYS "sess:*"

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🎉 Achievements

✅ Backend Core Complete - All OAuth2 infrastructure implemented
✅ PKCE Support - Security best practices implemented
✅ Dual Auth Support - Backward compatibility maintained
✅ Comprehensive Documentation - 3,300+ lines of guides
✅ Error Handling - User-friendly error pages
✅ Automatic Token Refresh - Seamless UX

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📅 Timeline

Phase	Start Date	Target End	Actual End	Status
Phase 1	2024-11-29	2024-11-29	2024-11-29	✅ Complete
Phase 2	2024-11-29	2024-11-29	2024-11-29	✅ Complete
Phase 3	2024-11-29	2024-12-06	-	🟡 In Progress
Phase 4	-	2024-12-13	-	⬜ Pending
Phase 5	-	2024-12-20	-	⬜ Pending
Phase 6	2024-11-29	Ongoing	-	🟡 In Progress

Overall Target Completion: Mid-December 2024
Current Pace: Ahead of schedule

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Next Action: Test backend implementation with OBP-OIDC server