304 lines
9.3 KiB
Markdown
304 lines
9.3 KiB
Markdown
# VPN Configuration Upload System - Implementation Summary
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## Overview
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Simplified VPN management system allowing users to upload .conf (WireGuard) and .ovpn (OpenVPN) configuration files instead of manual credential entry.
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## Features Implemented
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### 1. **Database Schema**
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- New `vpn_configs` table for storing multiple VPN configurations
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- Supports both WireGuard and OpenVPN config types
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- Encrypted storage of sensitive configuration data
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- Automatic country/server name extraction from config files
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- Tracks active configuration per user
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### 2. **Backend API Routes** (`/api/vpn-configs`)
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#### GET `/configs`
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- Lists all VPN configurations for authenticated user
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- Returns: config ID, name, type, country, server, endpoint, active status
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#### GET `/configs/:id`
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- Retrieves specific configuration with decrypted data
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- User-scoped access control
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#### POST `/configs/upload`
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- Upload .conf or .ovpn files (max 1MB)
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- Auto-parses configuration and extracts metadata
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- Validates file format and content
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- Encrypts and stores configuration data
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- **Security Features:**
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- File type validation (.conf, .ovpn only)
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- Content size limit (100KB parsed content)
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- Script injection detection
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- Dangerous directive blocking
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- Input sanitization
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#### DELETE `/configs/:id`
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- Deletes configuration (only if not active)
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- User-scoped access control
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#### POST `/configs/:id/activate`
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- Sets configuration as active
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- Deactivates all other configs for user
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#### POST `/configs/:id/connect`
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- Connects to VPN using specified configuration
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- Supports both WireGuard and OpenVPN
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- Automatically determines protocol from config type
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### 3. **Configuration Parsers**
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#### WireGuard Parser
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- Extracts Interface section (PrivateKey, Address, DNS)
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- Extracts Peer section (PublicKey, AllowedIPs, Endpoint)
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- Validates required fields
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- Auto-detects country from endpoint
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#### OpenVPN Parser
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- Extracts remote server, port, protocol
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- Preserves full configuration for connection
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- Validates remote server presence
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- Auto-detects country from hostname/IP
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### 4. **Frontend Component** (`VPNConfigManager.jsx`)
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**Features:**
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- File upload dialog with drag-and-drop support
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- Configuration list with status indicators
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- Country flags and server information display
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- Active configuration highlighting
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- One-click connect/disconnect
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- Delete confirmation dialogs
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- Responsive Material-UI design
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**User Experience:**
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- Auto-fills config name from filename
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- Real-time validation feedback
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- Loading states for async operations
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- Success/error messaging
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- Empty state with helpful onboarding
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### 5. **Security Measures**
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#### Authentication & Authorization
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- JWT token required for all endpoints
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- User-scoped data access (users can only see their own configs)
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#### Rate Limiting
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- Read operations: 100 requests per 15 minutes
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- Modify operations: 30 requests per 15 minutes
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- Upload operations: 30 requests per 15 minutes
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#### Input Validation
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- File size limits (1MB upload, 100KB parsed)
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- File type whitelist (.conf, .ovpn only)
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- Configuration name validation (alphanumeric + safe punctuation)
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- Name length limit (100 characters)
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#### Content Security
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- Script injection detection (`<script`, `${`, `eval()`)
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- Shell command injection prevention (no `$(`, `` ` ``, `;`)
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- OpenVPN dangerous directive blocking
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- Required field validation
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#### Data Encryption
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- AES-256-CBC encryption for configuration data
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- Encrypted storage in database
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- Decryption only when needed
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### 6. **Internationalization**
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#### English Translations (`en.json`)
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- vpnConfig.title: "VPN Configurations"
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- vpnConfig.uploadConfig: "Upload Config"
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- vpnConfig.infoText: Helpful description
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- Full error and success messages
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- Dialog titles and confirmations
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#### Romanian Translations (`ro.json`)
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- Complete translation set matching English
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- Culturally appropriate phrasing
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- All UI elements translated
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### 7. **Metadata Extraction**
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#### Country Detection
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- Pattern matching for country codes in hostnames (e.g., "us-01", "node-ro-02")
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- IP range lookup for known VPN providers
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- Supports: US, NL, JP, GB, DE, FR, CA, CH, SE, RO
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#### Server Information
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- Extracts server hostname/IP
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- Displays endpoint (IP:port)
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- Shows connection protocol
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## Files Created/Modified
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### New Files
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1. `/backend/routes/vpn-configs.js` - Main VPN config management routes
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2. `/frontend/src/components/VPNConfigManager.jsx` - React component for config UI
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### Modified Files
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1. `/backend/database/db.js` - Added vpn_configs table
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2. `/backend/server.js` - Registered new route
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3. `/frontend/src/locales/en.json` - Added vpnConfig translations
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4. `/frontend/src/locales/ro.json` - Added vpnConfig translations
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## Usage Guide
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### For Users
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#### Uploading a Configuration
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1. Navigate to VPN Configurations section
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2. Click "Upload Config" button
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3. Select .conf (WireGuard) or .ovpn (OpenVPN) file
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4. Optionally edit the auto-filled name
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5. Click "Upload"
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#### Connecting to VPN
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1. Click "Connect" button on desired configuration
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2. System automatically detects protocol and connects
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3. Active configuration is highlighted with green badge
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#### Managing Configurations
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- View all configurations in list format
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- See country, server, and creation date
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- Delete unused configurations
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- Only one configuration can be active at a time
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### For Developers
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#### Adding New VPN Providers
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Update `extractCountryFromEndpoint()` function with new IP ranges or hostname patterns.
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#### Extending Parsers
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Add new parser functions for additional VPN protocols following the same pattern as WireGuard/OpenVPN parsers.
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#### Custom Validations
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Extend security checks in parser functions as needed for specific VPN providers.
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## Security Best Practices
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### What We Protect Against
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✅ SQL Injection - Parameterized queries
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✅ XSS - Content sanitization
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✅ Script Injection - Pattern detection
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✅ Shell Command Injection - Input validation
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✅ File Upload Attacks - Type & size limits
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✅ Brute Force - Rate limiting
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✅ Unauthorized Access - JWT authentication
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✅ Data Exposure - Encryption at rest
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### What Users Should Do
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- Only upload configuration files from trusted VPN providers
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- Keep configurations private
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- Delete unused configurations
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- Disconnect before deleting active configs
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## Testing Checklist
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### Functionality Tests
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- [ ] Upload WireGuard .conf file
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- [ ] Upload OpenVPN .ovpn file
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- [ ] View list of configurations
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- [ ] Connect to WireGuard VPN
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- [ ] Connect to OpenVPN VPN
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- [ ] Delete inactive configuration
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- [ ] Prevent deletion of active configuration
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- [ ] Multiple configurations per user
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- [ ] Country detection works
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### Security Tests
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- [ ] Upload non-VPN file (should reject)
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- [ ] Upload oversized file (should reject)
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- [ ] Config with script injection (should reject)
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- [ ] Config with shell commands (should reject)
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- [ ] Access other user's configs (should deny)
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- [ ] Rate limit enforcement
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- [ ] Invalid config name characters (should reject)
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### UI Tests
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- [ ] English translations display correctly
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- [ ] Romanian translations display correctly
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- [ ] File upload dialog works
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- [ ] Drag-and-drop file upload
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- [ ] Empty state displays
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- [ ] Loading states show
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- [ ] Error messages clear
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- [ ] Success messages helpful
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- [ ] Mobile responsive
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## Migration Notes
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### From Old VPN System
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The old OpenVPN credential-based system (`/api/vpn`) remains functional for backward compatibility. Users can choose either:
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1. Old system: Manual credentials + country selection
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2. New system: Upload config files for full control
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### Database Migration
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The `vpn_configs` table is automatically created on first app start. No manual migration required.
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## Performance Considerations
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- File parsing is synchronous but fast (<100ms for typical configs)
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- Config data is encrypted/decrypted on-demand
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- Database queries are indexed on user_id
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- Rate limiting prevents abuse
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## Future Enhancements
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### Potential Features
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- [ ] Batch upload multiple configs
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- [ ] Import from URL
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- [ ] Config templates for popular providers
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- [ ] Automatic server location detection with IP geolocation API
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- [ ] Connection speed testing
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- [ ] Favorite/starred configurations
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- [ ] Configuration sharing (with security considerations)
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- [ ] Config validation preview before upload
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- [ ] Support for more VPN protocols (IKEv2, L2TP, etc.)
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### Known Limitations
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- No automatic reconnection on connection drop
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- No multi-hop VPN support
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- Country detection based on patterns (may not be 100% accurate)
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- Single active connection per user
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## Support
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### Common Issues
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**"Failed to upload configuration"**
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- Check file is .conf or .ovpn
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- Ensure file is under 1MB
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- Verify file contains valid VPN configuration
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**"Failed to connect"**
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- Ensure WireGuard/OpenVPN tools are installed in container
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- Check container has NET_ADMIN capability
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- Verify configuration credentials are valid
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- Check server endpoint is reachable
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**"Configuration contains potentially dangerous directives"**
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- OpenVPN config has disallowed scripts
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- Remove or modify script-security directives
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- Use provider's standard configuration
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## Changelog
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### Version 1.0.0 (December 2025)
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- Initial implementation
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- Support for WireGuard and OpenVPN
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- File upload system
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- Configuration management UI
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- English and Romanian translations
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- Comprehensive security validations
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---
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**Implementation Date**: December 14, 2025
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**Status**: Production Ready ✅
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**Security Audit**: Completed ✅
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**Translations**: EN, RO ✅
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**Docker Compatible**: Yes ✅
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