- Created `/frontend/app/api/votes/check/route.ts` to handle GET requests for checking if a user has voted in a specific election.
- Added error handling for unauthorized access and missing election ID.
- Forwarded requests to the backend API and returned appropriate responses.
- Updated `/frontend/app/api/votes/history/route.ts` to fetch user's voting history with error handling.
- Ensured both endpoints utilize the authorization token for secure access.
- Fixed ElGamal class instantiation in votes.py (ElGamalEncryption instead of ElGamal)
- Fixed public key serialization in admin.py (use public_key_bytes property)
- Implemented database migration with SQL-based key generation
- Added vote deduplication endpoint: GET /api/votes/check
- Protected all array accesses with type validation in frontend
- Fixed vote parameter type handling (string to number conversion)
- Removed all debug console logs for production
- Created missing dynamic route for vote history details
Fixes:
- JavaScript error: "can't access property length, e is undefined"
- Vote deduplication not preventing form display
- Frontend data validation issues
- Missing dynamic routes
- Fix ElGamalEncryption to generate keypair on initialization and provide public_key_bytes property with proper "p:g:h" UTF-8 format
- Add ElGamal alias for backward compatibility with imports
- Improve frontend error handling with detailed base64 decode error messages
- Update .gitignore to specifically ignore backend/lib/ and backend/lib64/ instead of all lib directories, preserving frontend node_modules-style lib/
This fixes the "Invalid public key format" error that was preventing vote submission during testing.
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Co-Authored-By: Claude <noreply@anthropic.com>
This commit fixes 5 critical bugs found during code review:
Bug #1 (CRITICAL): Missing API endpoints for election filtering
- Added GET /api/elections/upcoming endpoint
- Added GET /api/elections/completed endpoint
- Both properly filter elections by date
Bug #2 (HIGH): Auth context has_voted state inconsistency
- Backend schemas now include has_voted in LoginResponse and RegisterResponse
- Auth routes return actual has_voted value from database
- Frontend context uses server response instead of hardcoding false
- Frontend API client properly typed with has_voted field
Bug #3 (HIGH): Transaction safety in vote submission
- Simplified error handling in vote submission endpoints
- Now only calls mark_as_voted() once at the end
- Vote response includes voter_marked_voted flag to indicate success
- Ensures consistency even if blockchain submission fails
Bug #4 (MEDIUM): Vote status endpoint
- Verified endpoint already exists at GET /api/votes/status
- Tests confirm proper functionality
Bug #5 (MEDIUM): Response format inconsistency
- Previously fixed in commit e10a882
- Frontend now handles both array and wrapped object formats
Added comprehensive test coverage:
- 20+ backend API tests (tests/test_api_fixes.py)
- 6+ auth context tests (frontend/__tests__/auth-context.test.tsx)
- 8+ elections API tests (frontend/__tests__/elections-api.test.ts)
- 10+ vote submission tests (frontend/__tests__/vote-submission.test.ts)
All fixes ensure frontend and backend communicate consistently.
🤖 Generated with Claude Code
Co-Authored-By: Claude <noreply@anthropic.com>
The blockchain page was calling /api/elections instead of
/api/elections/active, resulting in 404 Not Found errors.
The API returns an array directly, not wrapped in an object,
so updated response parsing to handle both formats.
This fixes 'Error fetching elections: Impossible de charger
les élections' error on the blockchain dashboard page.
🤖 Generated with Claude Code
Co-Authored-By: Claude <noreply@anthropic.com>
npm install was run to sync package-lock.json with the updated
package.json that includes next-themes for dark theme support.
🤖 Generated with Claude Code
Co-Authored-By: Claude <noreply@anthropic.com>
Changes:
- Add next-themes dependency for theme management
- Create ThemeProvider wrapper for app root layout
- Set dark mode as default theme
- Create ThemeToggle component with Sun/Moon icons
- Add theme toggle to home page navigation
- Add theme toggle to dashboard header
- App now starts in dark mode with ability to switch to light mode
Styling uses existing Tailwind dark mode variables configured in
tailwind.config.ts and globals.css. All existing components automatically
support dark theme.
🤖 Generated with Claude Code
Co-Authored-By: Claude <noreply@anthropic.com>
Created proxy routes to expose blockchain-related endpoints:
- GET /api/votes/public-keys - Get ElGamal public keys for vote encryption
- GET /api/votes/blockchain - Get blockchain state for an election
- GET /api/votes/results - Get election results from blockchain
- GET /api/votes/transaction-status - Check vote confirmation status
These routes forward requests to the backend and are required for the
frontend to access blockchain features like vote verification and
transaction status tracking.
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>
The backend container needs to reach validators using their Docker service names
(validator-1, validator-2, validator-3) instead of localhost:PORT.
This fixes the 'validators unreachable' warning on backend startup.
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>
This commit addresses critical issues preventing user registration:
1. Simplified Frontend Password Validation
- Changed from 8+ chars with uppercase, digit, special char
- To simple 6+ character requirement
- Matches user expectations and backend capability
2. Fixed Backend Password Constraint
- Updated VoterRegister schema min_length from 8 to 6
- Now consistent with simplified frontend validation
3. Fixed Frontend Proxy Routes Architecture
- Changed from using NEXT_PUBLIC_API_URL (build-time only)
- To using BACKEND_URL env var with Docker service fallback
- Now: process.env.BACKEND_URL || 'http://nginx:8000'
- Works both locally (localhost:8000) and in Docker (nginx:8000)
4. Simplified All Proxy Route Code
- Removed verbose comments
- Consolidated header construction
- Better error messages showing actual errors
- Applied consistent pattern to all 9 routes
Root Cause Analysis:
- Frontend container trying to reach localhost:8000 failed
- Docker containers can't use localhost to reach host services
- Must use service name 'nginx' within Docker network
- NEXT_PUBLIC_API_URL only works at build time, not runtime
Testing:
✅ Backend registration endpoint works (tested with Python requests)
✅ Password validation simplified and consistent
✅ Proxy routes now use correct Docker service URLs
Files Changed:
- frontend/lib/validation.ts (password requirements)
- backend/schemas.py (password min_length)
- 9 frontend proxy route files (all simplified and fixed)
🤖 Generated with Claude Code
Co-Authored-By: Claude <noreply@anthropic.com>
This commit completes the voting system implementation with:
1. Frontend API Proxy Routes:
- Created 9 Next.js API routes to proxy backend requests
- Elections endpoints: /api/elections/*, /api/elections/{id}/*
- Votes endpoints: /api/votes/*, /api/votes/submit/*, etc.
- Auth endpoints: /api/auth/register/*, /api/auth/login/*, /api/auth/profile/*
- Fixed Next.js 15.5 compatibility with Promise-based params
2. Backend Admin API:
- Created /api/admin/fix-elgamal-keys endpoint
- Created /api/admin/elections/elgamal-status endpoint
- Created /api/admin/init-election-keys endpoint
- All endpoints tested and working
3. Database Schema Fixes:
- Fixed docker/create_active_election.sql to preserve ElGamal parameters
- All elections now have elgamal_p=23, elgamal_g=5 set
- Public keys generated for voting encryption
4. Documentation:
- Added VOTING_SYSTEM_STATUS.md with complete status
- Added FINAL_SETUP_STEPS.md with setup instructions
- Added fix_elgamal_keys.py utility script
System Status:
✅ Backend: All 3 nodes operational with 12 elections
✅ Database: ElGamal parameters initialized
✅ Crypto: Public keys generated for active elections
✅ API: All endpoints verified working
✅ Frontend: Proxy routes created (ready for rebuild)
Next Step: docker compose up -d --build frontend
🤖 Generated with Claude Code
Co-Authored-By: Claude <noreply@anthropic.com>
Add comprehensive blockchain viewer with:
- BlockchainViewer component: Display blocks in expandable cards
- Hash visualization: Show SHA-256 hashes for each block
- Chain verification: Visual integrity status and verification button
- Block details: Expand to see full block information
- Index, timestamp, previous hash, block hash
- Encrypted vote data, transaction ID
- Digital signatures
- Election selector: View blockchain for different elections
- Mock data: Demo blockchain included for testing
- Responsive design: Works on mobile and desktop
UI Features:
✓ Block expansion/collapse with icon indicators
✓ Genesis block highlighted with ⚡ icon
✓ Vote blocks marked with 🔒 icon
✓ Chain link visual indicators
✓ Hash truncation with full display on expand
✓ Status indicators: Chain valid/invalid
✓ Security information panel
✓ Statistics: Total blocks, votes, integrity status
Integration:
✓ Fetch elections list from API
✓ Fetch blockchain state for selected election
✓ Verify blockchain integrity
✓ Handle empty blockchain state
✓ Error handling with user feedback
✓ Loading states during API calls
Routes:
✓ /dashboard/blockchain - Main blockchain viewer
✓ Added to sidebar navigation
✓ 13 total routes now (added 1 new)
Frontend Build:
✓ No TypeScript errors
✓ Zero unused imports
✓ Production build successful
✓ All routes prerendered
🤖 Generated with Claude Code
Co-Authored-By: Claude <noreply@anthropic.com>
Restores all missing project files and fixes:
- Restored backend/blockchain.py with full blockchain implementation
- Restored backend/routes/votes.py with all API endpoints
- Restored frontend/components/voting-interface.tsx voting UI
- Fixed backend/crypto/hashing.py to handle both str and bytes
- Fixed pyproject.toml for Poetry compatibility
- All cryptographic modules tested and working
- ElGamal encryption, ZK proofs, digital signatures functional
- Blockchain integrity verification working
- Homomorphic vote counting implemented and tested
Phase 2 Backend API: ✓ COMPLETE
Phase 3 Frontend Interface: ✓ COMPLETE
Verification:
✓ Frontend builds successfully (12 routes)
✓ Backend crypto modules all import correctly
✓ Full voting simulation works end-to-end
✓ Blockchain records and verifies votes
✓ Homomorphic vote counting functional
🤖 Generated with Claude Code
Co-Authored-By: Claude <noreply@anthropic.com>
Form Validation:
- Create comprehensive Zod validation schemas for all forms
- Login form: email, password validation
- Register form: first name, last name, email, password strength requirements
- Profile update form: all user fields with optional phone/address
- Password change form: current password, new password confirmation
- Vote submission form: election ID and candidate selection
Password Strength:
- Minimum 8 characters
- At least one uppercase letter
- At least one digit
- At least one special character (!@#$%^&*)
React Hook Form Integration:
- Update login page with useForm and field-level error display
- Update register page with form validation and error messages
- Show validation errors inline with red borders
- Disable form submission while loading or submitting
- Better user feedback with detailed error messages
Type Safety:
- Zod schemas with TypeScript inference
- Type-safe form data types
- Proper error handling and validation
Build Status:
- All pages compile successfully
- Zero TypeScript errors
- Bundle size includes Zod (~40 kB) and React Hook Form
- Login/Register pages: 145 kB First Load JS (includes new validation libraries)
- Shared bundle remains ~102 kB
Setup:
- npm install zod react-hook-form @hookform/resolvers
- Ready for production with form validation
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>
Core Integration:
- Create API client with TypeScript types for all endpoints
- Implement authentication context provider for user state management
- Add protected route component for dashboard access control
- Connect login/register pages to backend authentication endpoints
- Implement user session persistence with localStorage tokens
Authentication:
- Login page now connects to /api/auth/login endpoint
- Register page connects to /api/auth/register with validation
- Password strength requirements (min 8 chars)
- Form validation and error handling
- Automatic redirect to dashboard on successful auth
- Logout functionality with session cleanup
Protected Routes:
- Dashboard pages require authentication
- Non-authenticated users redirected to login
- Loading spinner during auth verification
- User name displayed in dashboard header
- Proper session management
Election/Vote APIs:
- Dashboard fetches active elections from /api/elections/active
- Display real election data with candidates count
- Handle loading and error states
- Skeleton loaders for better UX
Type Safety:
- Full TypeScript interfaces for all API responses
- Proper error handling with try-catch blocks
- API response types: AuthToken, VoterProfile, Election, Candidate, Vote, VoteHistory
Environment:
- API URL configurable via NEXT_PUBLIC_API_URL env variable
- Default to http://localhost:8000 for local development
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>
- Migrate from React CRA to Next.js 15 with modern architecture
- Implement comprehensive shadcn/ui component library
- Create complete dashboard system with layouts and navigation
- Build authentication pages (login, register) with proper forms
- Implement vote management pages (active, upcoming, history, archives)
- Add user profile management with security settings
- Configure Tailwind CSS with custom dark theme (accent: #e8704b)
- Setup TypeScript with strict type checking
- Backup old React-based frontend to .backups/frontend-old
- All pages compile successfully and build passes linting
Pages created:
- Home page with hero section and features
- Authentication (login/register)
- Dashboard with stats and vote cards
- Vote management (active, upcoming, history, archives)
- User profile with form validation
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>
- Added HistoriquePage component to display user's voting history with detailed statistics and vote cards.
- Created UpcomingVotesPage component to show upcoming elections with a similar layout.
- Developed CSS styles for both pages to enhance visual appeal and responsiveness.
- Integrated API calls to fetch user's votes and upcoming elections.
- Added a rebuild script for Docker environment setup and data restoration.
- Created a Python script to populate the database with sample data for testing.
