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Alvin-Zilverstand
@@ -0,0 +1,163 @@
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# Security Considerations for SnowWorld Narrowcasting System
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## 🔒 Current Security Status
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### Known Vulnerabilities
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#### SQLite3 Dependencies
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The current implementation uses `sqlite3@5.1.7` which has some known security vulnerabilities in its dependency chain:
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|
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- **tar package vulnerability**: CVE related to arbitrary file overwrite
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||||
- **Impact**: Low to medium risk for this specific use case
|
||||
- **Status**: Being monitored and will be addressed in future updates
|
||||
|
||||
#### Mitigation Strategies
|
||||
1. **Input Validation**: All user inputs are validated and sanitized
|
||||
2. **File Upload Security**: Strict file type and size validation
|
||||
3. **Path Traversal Protection**: Proper path sanitization
|
||||
4. **SQL Injection Prevention**: Parameterized queries used throughout
|
||||
|
||||
### Recommended Security Measures
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||||
|
||||
#### For Production Deployment
|
||||
|
||||
1. **Use Better-sqlite3** (Recommended Alternative)
|
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```javascript
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// Replace sqlite3 with better-sqlite3
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// npm install better-sqlite3
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// In DatabaseManager.js:
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const Database = require('better-sqlite3');
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||||
```
|
||||
|
||||
2. **Implement Rate Limiting**
|
||||
```javascript
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// Add to server.js
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const rateLimit = require('express-rate-limit');
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const limiter = rateLimit({
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windowMs: 15 * 60 * 1000, // 15 minutes
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max: 100 // limit each IP to 100 requests per windowMs
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});
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app.use('/api', limiter);
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```
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||||
|
||||
3. **Add Helmet.js for Security Headers**
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||||
```javascript
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const helmet = require('helmet');
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app.use(helmet());
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||||
```
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||||
|
||||
4. **Implement Input Validation Library**
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```javascript
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const { body, validationResult } = require('express-validator');
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app.post('/api/content/upload',
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body('title').isLength({ min: 1, max: 255 }),
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body('zone').isIn(['reception', 'restaurant', 'skislope', 'lockers', 'shop']),
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(req, res) => {
|
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const errors = validationResult(req);
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if (!errors.isEmpty()) {
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return res.status(400).json({ errors: errors.array() });
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}
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// Process upload...
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}
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);
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```
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|
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### Security Checklist for Production
|
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|
||||
#### Network Security
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- [ ] Use HTTPS with valid SSL certificates
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- [ ] Implement proper firewall rules
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||||
- [ ] Use a reverse proxy (nginx) with security headers
|
||||
- [ ] Enable CORS only for trusted domains
|
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|
||||
#### Application Security
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- [ ] Validate all user inputs
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- [ ] Sanitize file uploads
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- [ ] Use parameterized SQL queries
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- [ ] Implement proper error handling (don't expose sensitive info)
|
||||
- [ ] Add rate limiting to prevent abuse
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||||
|
||||
#### File System Security
|
||||
- [ ] Restrict upload file types and sizes
|
||||
- [ ] Store uploads outside web root when possible
|
||||
- [ ] Implement file name sanitization
|
||||
- [ ] Use proper file permissions
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||||
|
||||
#### Database Security
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||||
- [ ] Use strong database passwords
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- [ ] Implement database connection limits
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- [ ] Regular database backups
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- [ ] Monitor for suspicious queries
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|
||||
### Immediate Actions Required
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|
||||
#### 1. Update Dependencies (Recommended)
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```bash
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# For better security, consider using better-sqlite3 instead of sqlite3
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npm install better-sqlite3
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# Then update DatabaseManager.js to use better-sqlite3
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```
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|
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#### 2. Add Security Middleware
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```bash
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npm install express-rate-limit helmet express-validator
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```
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|
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#### 3. Environment Variables Security
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```bash
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# Generate strong secrets
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openssl rand -base64 32
|
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# Add to .env file
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SESSION_SECRET=your-generated-secret
|
||||
JWT_SECRET=your-generated-jwt-secret
|
||||
```
|
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|
||||
### Monitoring and Maintenance
|
||||
|
||||
#### Regular Security Tasks
|
||||
1. **Weekly**: Check for npm security advisories
|
||||
2. **Monthly**: Update dependencies
|
||||
3. **Quarterly**: Security audit and penetration testing
|
||||
4. **Annually**: Full security review
|
||||
|
||||
#### Security Monitoring
|
||||
- Log all authentication attempts
|
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- Monitor file upload patterns
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- Track database query performance
|
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- Set up alerts for suspicious activity
|
||||
|
||||
### Incident Response Plan
|
||||
|
||||
#### If Security Issues Are Discovered
|
||||
1. **Immediate**: Isolate affected systems
|
||||
2. **Assessment**: Determine scope and impact
|
||||
3. **Notification**: Inform stakeholders
|
||||
4. **Remediation**: Fix vulnerabilities
|
||||
5. **Verification**: Test fixes thoroughly
|
||||
6. **Documentation**: Document lessons learned
|
||||
|
||||
## 🛡️ Future Security Enhancements
|
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|
||||
### Planned Improvements
|
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1. **Authentication System**: Add JWT-based authentication
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2. **Role-Based Access Control**: Implement user roles and permissions
|
||||
3. **Content Moderation**: Add approval workflows for content
|
||||
4. **Audit Logging**: Comprehensive audit trail
|
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5. **Encryption**: Encrypt sensitive data at rest
|
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|
||||
### Security Tools Integration
|
||||
- **Snyk**: For dependency vulnerability scanning
|
||||
- **OWASP ZAP**: For penetration testing
|
||||
- **SonarQube**: For code quality and security analysis
|
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|
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---
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|
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**Note**: While the current sqlite3 dependencies have some known vulnerabilities, the risk is relatively low for this specific use case due to:
|
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- Limited file system access
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- Input validation implemented
|
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- No direct user input to database queries
|
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- Controlled environment deployment
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|
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However, for production environments, consider migrating to `better-sqlite3` or another database solution with better security track record.
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@@ -0,0 +1,484 @@
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# SnowWorld Narrowcasting System - Technische Documentatie
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## Project Overzicht
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Dit document beschrijft het technische ontwerp en de implementatie van het narrowcasting systeem voor SnowWorld. Het systeem is ontworpen als een schaalbare, real-time oplossing voor het beheren en weergeven van content op verschillende schermen binnen het skigebied.
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## Systeem Architectuur
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### Componenten Overzicht
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```
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┌─────────────────────────────────────────────────────────────────┐
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│ SnowWorld Narrowcasting System │
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├─────────────────────────────────────────────────────────────────┤
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│ │
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│ ┌─────────────┐ ┌─────────────┐ ┌─────────────┐ │
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│ │ Backend │ │ Database │ │ WebSocket │ │
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│ │ Server │◄──►│ (SQLite) │ │ Server │ │
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│ │ (Node.js) │ │ │ │ │ │
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||||
│ └──────┬──────┘ └─────────────┘ └──────┬──────┘ │
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│ │ │ │
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│ ▼ ▼ │
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||||
│ ┌────────────────────────────────────────────────────┐ │
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│ │ API Endpoints │ │
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||||
│ └────────────────────────────────────────────────────┘ │
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||||
│ │ │ │
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||||
│ ▼ ▼ │
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||||
│ ┌─────────────┐ ┌─────────────┐ │
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||||
│ │Admin Dash │ │Client Display│ │
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│ │(HTML/CSS/JS)│ │(HTML/CSS/JS) │ │
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||||
│ └─────────────┘ └─────────────┘ │
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||||
│ │
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||||
└─────────────────────────────────────────────────────────────────┘
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```
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||||
### Backend Server (Node.js/Express)
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||||
**Technologieën:**
|
||||
- Node.js 18+ met Express framework
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- Socket.io voor real-time communicatie
|
||||
- SQLite voor dataopslag
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||||
- Multer voor file uploads
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||||
- UUID voor unieke identificatie
|
||||
|
||||
**Belangrijkste Features:**
|
||||
- RESTful API endpoints voor content management
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||||
- WebSocket support voor real-time updates
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||||
- File upload functionaliteit voor media
|
||||
- Zone-gebaseerde content distributie
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||||
- Scheduling systeem voor geplande content
|
||||
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||||
**API Endpoints:**
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||||
|
||||
```javascript
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// Content Management
|
||||
POST /api/content/upload - Upload nieuwe content
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||||
GET /api/content - Haal content op (optioneel gefilterd)
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||||
DELETE /api/content/:id - Verwijder content
|
||||
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||||
// Schedule Management
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POST /api/schedule - Maak nieuwe planning
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GET /api/schedule/:zone - Haal actieve planning op
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// Zones
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GET /api/zones - Haal alle zones op
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||||
// Weather Data
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GET /api/weather - Haal weersinformatie op
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```
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### Database Schema
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||||
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**Tabellen:**
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||||
|
||||
```sql
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-- Content tabel
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CREATE TABLE content (
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||||
id TEXT PRIMARY KEY,
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type TEXT NOT NULL, -- 'image', 'video', 'livestream'
|
||||
title TEXT NOT NULL,
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filename TEXT NOT NULL,
|
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originalName TEXT NOT NULL,
|
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mimeType TEXT NOT NULL,
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size INTEGER NOT NULL,
|
||||
path TEXT NOT NULL,
|
||||
url TEXT NOT NULL,
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||||
zone TEXT DEFAULT 'all',
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duration INTEGER DEFAULT 10, -- weergave duur in seconden
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isActive INTEGER DEFAULT 1,
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createdAt TEXT NOT NULL,
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||||
updatedAt TEXT
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||||
);
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||||
|
||||
-- Schedule tabel
|
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CREATE TABLE schedule (
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id TEXT PRIMARY KEY,
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contentId TEXT NOT NULL,
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zone TEXT NOT NULL,
|
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startTime TEXT NOT NULL,
|
||||
endTime TEXT NOT NULL,
|
||||
priority INTEGER DEFAULT 1,
|
||||
isActive INTEGER DEFAULT 1,
|
||||
createdAt TEXT NOT NULL,
|
||||
FOREIGN KEY (contentId) REFERENCES content (id) ON DELETE CASCADE
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);
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|
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-- Zones tabel
|
||||
CREATE TABLE zones (
|
||||
id TEXT PRIMARY KEY,
|
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name TEXT NOT NULL,
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||||
description TEXT,
|
||||
displayOrder INTEGER DEFAULT 0,
|
||||
isActive INTEGER DEFAULT 1
|
||||
);
|
||||
|
||||
-- Logs tabel
|
||||
CREATE TABLE logs (
|
||||
id TEXT PRIMARY KEY,
|
||||
type TEXT NOT NULL,
|
||||
message TEXT NOT NULL,
|
||||
data TEXT,
|
||||
timestamp TEXT NOT NULL
|
||||
);
|
||||
```
|
||||
|
||||
### Admin Dashboard
|
||||
|
||||
**Technologieën:**
|
||||
- Pure HTML5, CSS3, JavaScript (ES6+)
|
||||
- Font Awesome icons
|
||||
- Geen externe frameworks (lichtgewicht)
|
||||
|
||||
**Belangrijkste Functionaliteiten:**
|
||||
- Content upload met drag-and-drop
|
||||
- Visuele content management interface
|
||||
- Schedule planning met datum/tijd selectie
|
||||
- Real-time updates via WebSocket
|
||||
- Analytics dashboard met statistieken
|
||||
- Zone-beheer functionaliteit
|
||||
|
||||
**UI Componenten:**
|
||||
- Content grid met preview thumbnails
|
||||
- Modal dialogs voor uploads en planning
|
||||
- Filter en zoek functionaliteit
|
||||
- Toast notificaties voor feedback
|
||||
- Responsive design voor verschillende schermformaten
|
||||
|
||||
### Client Display
|
||||
|
||||
**Technologieën:**
|
||||
- HTML5, CSS3, JavaScript (ES6+)
|
||||
- CSS animations voor sneeuw effect
|
||||
- Font Awesome icons
|
||||
- WebSocket client
|
||||
|
||||
**Belangrijkste Functionaliteiten:**
|
||||
- Automatische content afspelen
|
||||
- Zone-specifieke content filtering
|
||||
- Real-time updates via WebSocket
|
||||
- Weer widget integratie
|
||||
- Klok en datum display
|
||||
- Adaptive layout voor verschillende schermformaten
|
||||
|
||||
**Display Features:**
|
||||
- Content transitions met fade effects
|
||||
- Error handling en fallback content
|
||||
- Connection status indicator
|
||||
- Loading states met animaties
|
||||
- Keyboard shortcuts voor bediening
|
||||
|
||||
## Installatie en Setup
|
||||
|
||||
### Vereisten
|
||||
|
||||
```bash
|
||||
# Node.js 18+ vereist
|
||||
node --version # >= 18.0.0
|
||||
npm --version # >= 8.0.0
|
||||
```
|
||||
|
||||
### Installatie
|
||||
|
||||
```bash
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||||
# Clone repository
|
||||
git clone [repository-url]
|
||||
cd snowworld-narrowcasting
|
||||
|
||||
# Backend dependencies installeren
|
||||
cd backend
|
||||
npm install
|
||||
|
||||
# Admin dashboard dependencies installeren
|
||||
cd ../admin
|
||||
npm install
|
||||
|
||||
# Client display (geen dependencies nodig)
|
||||
cd ../client
|
||||
# Geen npm install nodig - pure HTML/CSS/JS
|
||||
```
|
||||
|
||||
### Configuratie
|
||||
|
||||
**Backend Configuratie (backend/server.js):**
|
||||
```javascript
|
||||
const PORT = process.env.PORT || 3000;
|
||||
const MAX_FILE_SIZE = 50 * 1024 * 1024; // 50MB
|
||||
const SUPPORTED_FILE_TYPES = {
|
||||
'image': ['image/jpeg', 'image/png', 'image/gif', 'image/webp'],
|
||||
'video': ['video/mp4', 'video/webm', 'video/ogg']
|
||||
};
|
||||
```
|
||||
|
||||
### Opstarten
|
||||
|
||||
```bash
|
||||
# Backend server starten
|
||||
cd backend
|
||||
npm start
|
||||
# Of voor development:
|
||||
npm run dev
|
||||
|
||||
# Admin dashboard serveren
|
||||
cd admin
|
||||
npm start
|
||||
# Toegankelijk op: http://localhost:8080
|
||||
|
||||
# Client display openen
|
||||
# Open client/index.html in browser
|
||||
# Of serve via HTTP server voor volledige functionaliteit
|
||||
```
|
||||
|
||||
## Gebruik
|
||||
|
||||
### Admin Dashboard
|
||||
|
||||
1. **Content Toevoegen:**
|
||||
- Klik op "Content Toevoegen" knop
|
||||
- Selecteer bestand (afbeelding of video)
|
||||
- Vul metadata in (titel, type, zone, duur)
|
||||
- Upload bestand
|
||||
|
||||
2. **Planning Maken:**
|
||||
- Ga naar "Planning" tab
|
||||
- Klik op "Planning Toevoegen"
|
||||
- Selecteer content en zone
|
||||
- Stel start/tijd tijden in
|
||||
- Bevestig planning
|
||||
|
||||
3. **Zone Beheer:**
|
||||
- Bekijk zone overzicht
|
||||
- Configureer per zone welke content getoond wordt
|
||||
|
||||
### Client Display
|
||||
|
||||
1. **Zone Selectie:**
|
||||
- Voeg `?zone=ZONE_NAME` toe aan URL
|
||||
- Beschikbare zones: reception, restaurant, skislope, lockers, shop
|
||||
|
||||
2. **Keyboard Shortcuts:**
|
||||
- F5: Content verversen
|
||||
- Escape: Zone selector tonen
|
||||
- F1: Systeem informatie
|
||||
|
||||
## Technische Beslissingen
|
||||
|
||||
### 1. Database Keuze: SQLite
|
||||
|
||||
**Redenen:**
|
||||
- Geen separate database server nodig
|
||||
- Snelle setup voor development
|
||||
- Voldoende voor kleine tot middelgrote implementaties
|
||||
- Gemakkelijk te migreren naar PostgreSQL/MySQL indien nodig
|
||||
|
||||
**Alternatieven overwogen:**
|
||||
- PostgreSQL: Uitstekend maar vereist server setup
|
||||
- MongoDB: Goed voor unstructured data maar overkill voor dit project
|
||||
|
||||
### 2. WebSocket vs REST
|
||||
|
||||
**Implementatie:** Beide
|
||||
- REST voor initiele data loading
|
||||
- WebSocket voor real-time updates
|
||||
- Fallback naar HTTP polling bij WebSocket falen
|
||||
|
||||
**Redenen:**
|
||||
- Real-time updates essentieel voor narrowcasting
|
||||
- WebSocket minder resource intensief dan polling
|
||||
- REST blijft beschikbaar als fallback
|
||||
|
||||
### 3. Frontend Technologie
|
||||
|
||||
**Keuze:** Pure HTML/CSS/JavaScript zonder frameworks
|
||||
|
||||
**Redenen:**
|
||||
- Lichte footprint - snelle laadtijden
|
||||
- Geen build process nodig
|
||||
- Eenvoudig te onderhouden
|
||||
- Volledige controle over implementatie
|
||||
- Werkt op elk device met moderne browser
|
||||
|
||||
**Alternatieven overwogen:**
|
||||
- React/Vue/Angular: Uitstekend maar overkill voor dit project
|
||||
- jQuery: Verouderd, native JavaScript volstaat
|
||||
|
||||
### 4. File Storage
|
||||
|
||||
**Keuze:** Lokale file system storage
|
||||
|
||||
**Redenen:**
|
||||
- Simpel en betrouwbaar
|
||||
- Geen externe storage service nodig
|
||||
- Snelle toegang tot bestanden
|
||||
- Voldoende voor kleine tot middelgrote implementaties
|
||||
|
||||
**Alternatieven overwogen:**
|
||||
- Cloud storage (AWS S3, etc.): Duur en complex voor dit project
|
||||
- Database BLOB storage: Niet optimaal voor grote bestanden
|
||||
|
||||
## Performance Optimalisaties
|
||||
|
||||
### 1. Content Caching
|
||||
- Client side caching van content metadata
|
||||
- Browser caching van media bestanden
|
||||
- Memory caching van actieve content
|
||||
|
||||
### 2. Lazy Loading
|
||||
- Images worden pas geladen wanneer nodig
|
||||
- Video's starten pas bij display
|
||||
- Progressieve loading voor grote bestanden
|
||||
|
||||
### 3. Connection Optimization
|
||||
- WebSocket voor real-time updates
|
||||
- HTTP/2 support via Express
|
||||
- Gzip compressie ingeschakeld
|
||||
|
||||
### 4. Responsive Design
|
||||
- Adaptive layouts voor verschillende schermformaten
|
||||
- Optimalisatie voor touch interfaces
|
||||
- High contrast mode support
|
||||
|
||||
## Beveiliging
|
||||
|
||||
### 1. File Upload Beveiliging
|
||||
- File type validatie op basis van MIME type
|
||||
- Bestandsgrootte limieten
|
||||
- Filename sanitization
|
||||
- Upload directory restricties
|
||||
|
||||
### 2. Input Validatie
|
||||
- Alle user input wordt gevalideerd
|
||||
- SQL injection preventie via parameterized queries
|
||||
- XSS preventie via output encoding
|
||||
|
||||
### 3. CORS Configuratie
|
||||
- Specifieke origins toegestaan
|
||||
- Credentials handling correct geconfigureerd
|
||||
|
||||
## Schaalbaarheid
|
||||
|
||||
### 1. Database Schaalbaarheid
|
||||
- SQLite geschikt voor kleine tot middelgrote implementaties
|
||||
- Migratie pad naar PostgreSQL/MySQL aanwezig
|
||||
- Database indexing op kritieke velden
|
||||
|
||||
### 2. File Storage Schaalbaarheid
|
||||
- Lokale storage geschikt voor < 10GB aan media
|
||||
- Migratie pad naar cloud storage aanwezig
|
||||
- CDN integratie mogelijk voor global distribution
|
||||
|
||||
### 3. Server Schaalbaarheid
|
||||
- Node.js cluster mode ondersteund
|
||||
- Load balancing ready via reverse proxy
|
||||
- Stateles design voor horizontal scaling
|
||||
|
||||
## Monitoring en Logging
|
||||
|
||||
### 1. Logging System
|
||||
- SQLite logs tabel voor applicatie events
|
||||
- Console logging voor development
|
||||
- Error tracking en reporting
|
||||
|
||||
### 2. Performance Monitoring
|
||||
- Connection status tracking
|
||||
- Content loading performance
|
||||
- Error rate monitoring
|
||||
|
||||
### 3. Health Checks
|
||||
- API endpoints voor health status
|
||||
- WebSocket connection monitoring
|
||||
- Content availability checks
|
||||
|
||||
## Foutafhandeling
|
||||
|
||||
### 1. Graceful Degradation
|
||||
- Fallback content bij errors
|
||||
- Offline mode support
|
||||
- Progressive enhancement
|
||||
|
||||
### 2. Error Recovery
|
||||
- Automatische reconnect bij connection loss
|
||||
- Content retry mechanisms
|
||||
- User-friendly error messages
|
||||
|
||||
### 3. Data Integrity
|
||||
- Transaction support voor database operaties
|
||||
- File upload rollback bij errors
|
||||
- Consistency checks
|
||||
|
||||
## Testing Strategie
|
||||
|
||||
### 1. Unit Testing
|
||||
- Individual component testing
|
||||
- API endpoint testing
|
||||
- Database operation testing
|
||||
|
||||
### 2. Integration Testing
|
||||
- End-to-end workflow testing
|
||||
- WebSocket communication testing
|
||||
- File upload testing
|
||||
|
||||
### 3. Performance Testing
|
||||
- Load testing voor meerdere clients
|
||||
- Stress testing voor grote content volumes
|
||||
- Network failure simulation
|
||||
|
||||
## Deployment
|
||||
|
||||
### 1. Production Setup
|
||||
- Reverse proxy (nginx) aanbevolen
|
||||
- SSL/TLS encryptie verplicht
|
||||
- Process manager (PM2) voor Node.js
|
||||
|
||||
### 2. Environment Configuratie
|
||||
- Environment variables voor configuratie
|
||||
- Separate config voor development/production
|
||||
- Database backup strategie
|
||||
|
||||
### 3. Update Strategie
|
||||
- Rolling updates mogelijk
|
||||
- Database migrations ondersteund
|
||||
- Zero-downtime deployment
|
||||
|
||||
## Onderhoud
|
||||
|
||||
### 1. Regular Maintenance
|
||||
- Database cleanup (oude logs/content)
|
||||
- Storage cleanup (onbruikte bestanden)
|
||||
- Performance monitoring
|
||||
|
||||
### 2. Backup Strategie
|
||||
- Database backups
|
||||
- Content backups
|
||||
- Configuration backups
|
||||
|
||||
### 3. Update Procedure
|
||||
- Dependency updates
|
||||
- Security patches
|
||||
- Feature updates
|
||||
|
||||
## Toekomstige Uitbreidingen
|
||||
|
||||
### 1. Geplande Features
|
||||
- User authentication systeem
|
||||
- Advanced analytics dashboard
|
||||
- Content approval workflow
|
||||
- Multi-language support
|
||||
|
||||
### 2. Mogelijke Integraties
|
||||
- Social media feeds
|
||||
- Weather API integratie
|
||||
- Booking system integratie
|
||||
- Mobile app companion
|
||||
|
||||
### 3. Performance Verbeteringen
|
||||
- Redis caching layer
|
||||
- CDN integratie
|
||||
- Database query optimalisatie
|
||||
- Image/video optimization
|
||||
|
||||
## Conclusie
|
||||
|
||||
Dit narrowcasting systeem biedt een robuuste, schaalbare oplossing voor SnowWorld's digitale signage behoeften. De architectuur is ontworpen met betrouwbaarheid, performance en gebruiksgemak in het achterhoofd, waardoor het systeem eenvoudig te onderhouden en uit te breiden is voor toekomstige vereisten.
|
||||
|
||||
Het systeem maakt gebruik van moderne webtechnologieën en volgt best practices voor security, performance en schaalbaarheid. Met real-time updates, zone-specifieke content distributie en een intuïtieve admin interface, biedt het alle functionaliteit die nodig is voor een professioneel narrowcasting systeem.
|
||||
Reference in New Issue
Block a user