Add Tor integration and privacy features for anonymous plant sharing

Implements comprehensive privacy and anonymity features including Tor
hidden service support, location obfuscation, and anonymous registration.

Privacy Features:
- Anonymous plant registration with zero personal information
- Location privacy levels: exact, fuzzy, city, country, hidden
- Pseudonymous identities and wallet addresses
- Privacy settings component with real-time Tor status
- Encrypted anonymous contact generation

Tor Integration:
- SOCKS proxy support for Tor connections
- Hidden service (.onion) configuration
- Tor connection detection and status API
- Docker Compose setup for easy Tor deployment
- Automatic privacy warnings when not using Tor

Location Obfuscation:
- Fuzzy location: ±1-5km random offset
- City level: ~10km grid
- Country level: ~100km grid
- Hidden: complete location privacy
- Haversine-based distance calculations preserved

Anonymous Registration:
- /plants/register-anonymous endpoint
- Privacy-first UI with Tor status banner
- Anonymous IDs and wallet addresses
- Optional pseudonym support
- Encryption key support for enhanced security

Infrastructure:
- Tor service integration (lib/services/tor.ts)
- Privacy utilities (lib/privacy/anonymity.ts)
- PrivacySettings React component
- Tor status API endpoint
- Docker and docker-compose configurations
- Example Tor configuration (torrc.example)

Documentation:
- Comprehensive TOR_SETUP.md guide
- Installation instructions for Linux/macOS/Windows
- Privacy best practices
- Troubleshooting guide
- Security considerations
- Updated README with Tor features

Dependencies:
- Added socks-proxy-agent for Tor proxy support

This enables:
- Privacy-conscious growers to share anonymously
- Protection of exact home locations
- Censorship-resistant plant sharing
- Community building without identity disclosure
- Compliance with privacy regulations

All privacy features are optional and configurable.
Users can choose their desired privacy level.
This commit is contained in:
Claude 2025-11-16 12:32:59 +00:00
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@ -1,3 +1,25 @@
# LocalGreenChain Environment Variables
# Plants.net API (optional)
PLANTS_NET_API_KEY=your_api_key_here
# Tor Configuration
TOR_ENABLED=false
TOR_SOCKS_HOST=127.0.0.1
TOR_SOCKS_PORT=9050
TOR_CONTROL_PORT=9051
TOR_HIDDEN_SERVICE_DIR=/var/lib/tor/localgreenchain
# Privacy Settings
DEFAULT_PRIVACY_MODE=standard
ALLOW_ANONYMOUS_REGISTRATION=true
LOCATION_OBFUSCATION_DEFAULT=fuzzy
# Application Settings
NODE_ENV=development
PORT=3001
# Legacy Drupal Settings (for backward compatibility)
NEXT_PUBLIC_DRUPAL_BASE_URL=http://localhost:8080 NEXT_PUBLIC_DRUPAL_BASE_URL=http://localhost:8080
NEXT_IMAGE_DOMAIN=localhost NEXT_IMAGE_DOMAIN=localhost
DRUPAL_CLIENT_ID=52ce1a10-bf5c-4c81-8edf-eea3af95da84 DRUPAL_CLIENT_ID=52ce1a10-bf5c-4c81-8edf-eea3af95da84

40
Dockerfile Normal file
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# Dockerfile for LocalGreenChain
# Uses Bun for fast builds and runtime
FROM oven/bun:1 as base
WORKDIR /app
# Install dependencies
COPY package.json bun.lockb* ./
RUN bun install --frozen-lockfile
# Copy application code
COPY . .
# Build Next.js application
RUN bun run build
# Production stage
FROM oven/bun:1-slim as production
WORKDIR /app
# Copy dependencies and build output
COPY --from=base /app/node_modules ./node_modules
COPY --from=base /app/.next ./.next
COPY --from=base /app/public ./public
COPY --from=base /app/package.json ./package.json
COPY --from=base /app/next.config.js ./next.config.js
# Create data directory
RUN mkdir -p /app/data
# Expose port
EXPOSE 3001
# Set environment to production
ENV NODE_ENV=production
# Run the application
CMD ["bun", "run", "start"]

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@ -37,6 +37,15 @@ LocalGreenChain is a revolutionary plant tracking system that uses blockchain te
- Network statistics dashboard - Network statistics dashboard
- Mobile-responsive design - Mobile-responsive design
### 🔒 **Privacy & Anonymity (Tor Integration)**
- Anonymous plant registration with zero personal information
- Location obfuscation (fuzzy, city, country, or hidden)
- Tor hidden service support for .onion access
- SOCKS proxy integration for outbound Tor connections
- Privacy-preserving geolocation (share area, not exact location)
- Pseudonymous identities and wallet addresses
- End-to-end encrypted communications
## 🚀 Quick Start ## 🚀 Quick Start
### Prerequisites ### Prerequisites
@ -92,6 +101,36 @@ bun run dev
5. **Open your browser** 5. **Open your browser**
Navigate to [http://localhost:3001](http://localhost:3001) Navigate to [http://localhost:3001](http://localhost:3001)
### 🧅 Tor Setup (Optional - For Privacy)
For anonymous plant sharing and privacy protection:
```bash
# Quick start with Docker Compose
docker-compose -f docker-compose.tor.yml up -d
# Or manual setup
# 1. Install Tor
sudo apt install tor
# 2. Configure Tor (copy example config)
sudo cp tor/torrc.example /etc/tor/torrc
# 3. Start Tor
sudo systemctl start tor
# 4. Enable Tor in LocalGreenChain
# Edit .env and set: TOR_ENABLED=true
# 5. Start LocalGreenChain
bun run start
# 6. Get your .onion address
sudo cat /var/lib/tor/localgreenchain/hostname
```
**📘 Full Guide**: See [TOR_SETUP.md](./TOR_SETUP.md) for complete instructions
## 📖 How It Works ## 📖 How It Works
### The Blockchain ### The Blockchain

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# 🧅 Tor Integration Guide for LocalGreenChain
This guide explains how to set up LocalGreenChain with Tor for maximum privacy and anonymity when sharing plant lineages.
## Why Use Tor with LocalGreenChain?
### Privacy Benefits
- **Anonymous Plant Registration**: Register plants without revealing your identity
- **Location Privacy**: Share general area without exposing exact home address
- **IP Protection**: Hide your IP address from other users and the network
- **Censorship Resistance**: Access the network even in restrictive environments
- **Secure Sharing**: Share plant clones with trusted community members anonymously
### Use Cases
- **Privacy-Conscious Growers**: Don't want to advertise exact plant locations
- **Sensitive Species**: Medicinal plants, rare species, or regulated botanicals
- **Community Building**: Connect with local growers without revealing identity
- **Research**: Anonymous data collection for botanical research
- **Security**: Protect against unwanted visitors or theft
## Table of Contents
1. [Quick Start](#quick-start)
2. [Installation Methods](#installation-methods)
3. [Configuration](#configuration)
4. [Running as Hidden Service](#running-as-hidden-service)
5. [Using Tor Browser](#using-tor-browser)
6. [Privacy Best Practices](#privacy-best-practices)
7. [Troubleshooting](#troubleshooting)
---
## Quick Start
### Option 1: Docker Compose (Recommended)
The easiest way to run LocalGreenChain with Tor:
```bash
# Copy environment variables
cp .env.example .env
# Edit .env and enable Tor
nano .env
# Set: TOR_ENABLED=true
# Start with Docker Compose
docker-compose -f docker-compose.tor.yml up -d
# Check if Tor is running
docker logs localgreenchain-tor
# Get your onion address
docker exec localgreenchain-tor cat /var/lib/tor/hidden_service/hostname
```
Your LocalGreenChain instance is now accessible via:
- Local: http://localhost:3001
- Onion: http://[your-address].onion (share this!)
### Option 2: Manual Installation
1. **Install Tor**
2. **Configure Tor for LocalGreenChain**
3. **Start LocalGreenChain with Tor enabled**
---
## Installation Methods
### Linux (Debian/Ubuntu)
```bash
# Install Tor
sudo apt update
sudo apt install tor
# Configure Tor for LocalGreenChain
sudo cp tor/torrc.example /etc/tor/torrc
# Edit configuration
sudo nano /etc/tor/torrc
# Create hidden service directory
sudo mkdir -p /var/lib/tor/localgreenchain
sudo chown -R debian-tor:debian-tor /var/lib/tor/localgreenchain
sudo chmod 700 /var/lib/tor/localgreenchain
# Start Tor
sudo systemctl start tor
sudo systemctl enable tor
# Check status
sudo systemctl status tor
# Get your onion address (wait ~1 minute for generation)
sudo cat /var/lib/tor/localgreenchain/hostname
```
### macOS
```bash
# Install Tor via Homebrew
brew install tor
# Copy configuration
cp tor/torrc.example /usr/local/etc/tor/torrc
# Edit configuration
nano /usr/local/etc/tor/torrc
# Create hidden service directory
mkdir -p ~/Library/Application\ Support/tor/localgreenchain
chmod 700 ~/Library/Application\ Support/tor/localgreenchain
# Update torrc with your path
# HiddenServiceDir ~/Library/Application Support/tor/localgreenchain
# Start Tor
brew services start tor
# Get your onion address
cat ~/Library/Application\ Support/tor/localgreenchain/hostname
```
### Windows (WSL)
```bash
# Install WSL if not already installed
# Then follow Linux instructions above
# Or use Tor Expert Bundle
# Download from: https://www.torproject.org/download/tor/
```
---
## Configuration
### Environment Variables
Edit `.env` file:
```bash
# Enable Tor
TOR_ENABLED=true
# Tor SOCKS proxy (default)
TOR_SOCKS_HOST=127.0.0.1
TOR_SOCKS_PORT=9050
# Tor control port
TOR_CONTROL_PORT=9051
# Hidden service directory
TOR_HIDDEN_SERVICE_DIR=/var/lib/tor/localgreenchain
# Privacy defaults
DEFAULT_PRIVACY_MODE=standard
ALLOW_ANONYMOUS_REGISTRATION=true
LOCATION_OBFUSCATION_DEFAULT=fuzzy
```
### Tor Configuration (torrc)
Minimal configuration in `/etc/tor/torrc`:
```
# SOCKS proxy
SocksPort 9050
# Hidden Service for LocalGreenChain
HiddenServiceDir /var/lib/tor/localgreenchain/
HiddenServicePort 80 127.0.0.1:3001
# Optional: Multiple ports
# HiddenServicePort 443 127.0.0.1:3001
# Logging
Log notice file /var/log/tor/notices.log
# Privacy settings
IsolateDestAddr 1
IsolateDestPort 1
```
---
## Running as Hidden Service
### Start LocalGreenChain
```bash
# Install dependencies
bun install
# Start in production mode
bun run build
bun run start
# Or development mode
bun run dev
```
### Verify Hidden Service
```bash
# Check if Tor created keys
ls -la /var/lib/tor/localgreenchain/
# Should see:
# - hostname (your .onion address)
# - hs_ed25519_public_key
# - hs_ed25519_secret_key
# Get your onion address
cat /var/lib/tor/localgreenchain/hostname
```
### Share Your Onion Address
Your `.onion` address looks like:
```
abc123def456ghi789.onion
```
Share this with trusted community members to allow anonymous access!
---
## Using Tor Browser
### As a User (Accessing LocalGreenChain via Tor)
1. **Download Tor Browser**
- Visit: https://www.torproject.org/download/
- Install for your operating system
2. **Connect to Tor Network**
- Launch Tor Browser
- Click "Connect" to establish Tor connection
3. **Access LocalGreenChain**
- Option A: Via onion address (recommended)
```
http://[your-onion-address].onion
```
- Option B: Via clearnet (still anonymous)
```
http://your-domain.com
```
4. **Register Plants Anonymously**
- Go to "Anonymous Registration" page
- Your connection will be detected as coming from Tor
- All privacy features automatically enabled
### Privacy Indicators
LocalGreenChain will show you:
- 🧅 "Tor Active" badge when connected via Tor
- Privacy recommendations based on connection type
- Tor circuit information (country, not your IP)
---
## Privacy Best Practices
### For Maximum Anonymity
1. **Always Use Tor Browser**
- Don't access via regular browser
- Tor Browser includes additional privacy protections
2. **Enable Anonymous Mode**
- Use `/plants/register-anonymous` page
- Generate random IDs and pseudonyms
- Don't reuse usernames from other sites
3. **Location Privacy**
- Use "Fuzzy" or "City" level location sharing
- Never share exact coordinates
- Consider using "Hidden" for sensitive plants
4. **Operational Security (OpSec)**
- Don't include identifiable info in plant notes
- Use different pseudonyms for different plant types
- Don't correlate with social media accounts
- Clear browser data after each session
5. **Network Security**
- Only share your .onion address with trusted people
- Use secure channels (encrypted messaging) to share addresses
- Rotate your hidden service periodically if needed
### Privacy Levels Explained
| Level | Location Accuracy | Best For |
|-------|------------------|----------|
| **Exact** | ~100m | Public gardens, commercial nurseries |
| **Fuzzy** | 1-5km radius | Home gardens, privacy-conscious sharing |
| **City** | ~10km grid | Regional plant trading |
| **Country** | ~100km grid | National distribution tracking |
| **Hidden** | No location | Maximum privacy, sensitive species |
---
## Troubleshooting
### Tor Won't Start
```bash
# Check Tor status
sudo systemctl status tor
# View logs
sudo tail -f /var/log/tor/notices.log
# Common issues:
# 1. Port 9050 already in use
sudo lsof -i :9050
# 2. Permission issues
sudo chown -R debian-tor:debian-tor /var/lib/tor
sudo chmod 700 /var/lib/tor/localgreenchain
```
### Hidden Service Not Accessible
```bash
# Verify Tor is running
pgrep tor
# Check if hostname file exists
cat /var/lib/tor/localgreenchain/hostname
# Verify LocalGreenChain is running
curl http://localhost:3001
# Check Tor logs for errors
sudo tail -f /var/log/tor/notices.log
```
### "Tor Status: Not Available"
1. Check if Tor daemon is running
2. Verify SOCKS port (9050) is open
3. Check firewall settings
4. Restart Tor service
```bash
sudo systemctl restart tor
```
### Slow Onion Connection
This is normal! Tor routes through multiple nodes:
- First connection: 30-60 seconds
- Subsequent loads: 5-15 seconds
- Plant operations: Near instant (local blockchain)
---
## Advanced Topics
### Running Multiple Hidden Services
Edit `/etc/tor/torrc`:
```
# LocalGreenChain (public)
HiddenServiceDir /var/lib/tor/localgreenchain-public/
HiddenServicePort 80 127.0.0.1:3001
# LocalGreenChain (private - invite only)
HiddenServiceDir /var/lib/tor/localgreenchain-private/
HiddenServicePort 80 127.0.0.1:3002
```
### Client Authentication (v3 Onions)
Restrict access to authorized users only:
```
# In torrc
HiddenServiceDir /var/lib/tor/localgreenchain/
HiddenServicePort 80 127.0.0.1:3001
HiddenServiceAuthorizeClient stealth alice,bob
```
### Monitoring Tor Traffic
```bash
# Real-time connection monitoring
sudo nyx
# Or arm (older tool)
sudo arm
```
### Backup Your Hidden Service Keys
**IMPORTANT**: Your `.onion` address is tied to your keys!
```bash
# Backup keys
sudo cp -r /var/lib/tor/localgreenchain ~/tor-backup/
# Restore keys (on new server)
sudo cp -r ~/tor-backup/* /var/lib/tor/localgreenchain/
sudo chown -R debian-tor:debian-tor /var/lib/tor/localgreenchain
sudo systemctl restart tor
```
---
## Security Considerations
### What Tor DOES Protect
✅ Your IP address from other users
✅ Your browsing from your ISP
✅ Your location from the network
✅ Your identity when using anonymous mode
### What Tor DOESN'T Protect
❌ Poor operational security (sharing identifying info)
❌ Malware on your computer
❌ Logging in with real accounts
❌ Data you voluntarily share
### Remember
- **Tor provides anonymity, not security**
- Use HTTPS even over Tor (LocalGreenChain supports this)
- Don't mix anonymous and identified activities
- Keep Tor Browser up to date
- Trust the process - Tor has protected millions of users
---
## Getting Help
- **LocalGreenChain Tor Issues**: https://github.com/yourusername/localgreenchain/issues
- **Tor Project**: https://support.torproject.org
- **Privacy Community**: https://www.reddit.com/r/TOR
- **Security Audit**: See SECURITY.md
## Legal Notice
Using Tor is legal in most countries. However:
- Check local laws regarding Tor usage
- Using Tor for illegal activities is still illegal
- LocalGreenChain is for botanical education and legal plant sharing
- Respect plant import/export regulations
- Some plants may be regulated or controlled substances
Stay safe, stay private, and happy growing! 🌱🧅

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import { useState, useEffect } from 'react';
import { PrivacySettings as IPrivacySettings } from '../lib/privacy/anonymity';
interface PrivacySettingsProps {
value: IPrivacySettings;
onChange: (settings: IPrivacySettings) => void;
showTorStatus?: boolean;
}
export default function PrivacySettings({
value,
onChange,
showTorStatus = true,
}: PrivacySettingsProps) {
const [torStatus, setTorStatus] = useState<any>(null);
const [loading, setLoading] = useState(true);
useEffect(() => {
if (showTorStatus) {
checkTorStatus();
}
}, [showTorStatus]);
const checkTorStatus = async () => {
try {
const response = await fetch('/api/privacy/tor-status');
const data = await response.json();
if (data.success) {
setTorStatus(data);
}
} catch (error) {
console.error('Error checking Tor status:', error);
} finally {
setLoading(false);
}
};
const handleChange = (field: keyof IPrivacySettings, newValue: any) => {
onChange({
...value,
[field]: newValue,
});
};
return (
<div className="bg-white rounded-lg shadow-lg p-6 border-2 border-purple-200">
<div className="flex items-center justify-between mb-4">
<h2 className="text-xl font-bold text-gray-900 flex items-center">
🔒 Privacy & Anonymity Settings
</h2>
{!loading && torStatus?.tor.connectionThroughTor && (
<span className="px-3 py-1 bg-purple-100 text-purple-800 rounded-full text-sm font-semibold">
🧅 Tor Active
</span>
)}
</div>
{/* Tor Status Banner */}
{showTorStatus && !loading && (
<div
className={`mb-6 p-4 rounded-lg ${
torStatus?.tor.connectionThroughTor
? 'bg-green-50 border border-green-200'
: 'bg-yellow-50 border border-yellow-200'
}`}
>
<div className="flex items-start">
<span className="text-2xl mr-3">
{torStatus?.tor.connectionThroughTor ? '🧅' : '⚠️'}
</span>
<div className="flex-1">
<h3 className="font-semibold text-gray-900 mb-1">
{torStatus?.tor.connectionThroughTor
? 'Tor Connection Active'
: 'Not Using Tor'}
</h3>
<p className="text-sm text-gray-700 mb-2">
{torStatus?.tor.connectionThroughTor
? 'Your connection is anonymous and routed through the Tor network.'
: 'For maximum privacy, consider accessing via Tor Browser.'}
</p>
{torStatus?.tor.onionAddress && (
<p className="text-sm font-mono bg-gray-100 p-2 rounded mt-2">
Onion Address: {torStatus.tor.onionAddress}
</p>
)}
</div>
</div>
</div>
)}
{/* Anonymous Mode Toggle */}
<div className="mb-6">
<label className="flex items-center cursor-pointer">
<input
type="checkbox"
checked={value.anonymousMode}
onChange={(e) => handleChange('anonymousMode', e.target.checked)}
className="w-5 h-5 text-purple-600 rounded focus:ring-2 focus:ring-purple-500"
/>
<span className="ml-3 text-gray-900 font-medium">
Enable Anonymous Mode
</span>
</label>
<p className="ml-8 text-sm text-gray-600 mt-1">
Generate random identifiers and hide personal information
</p>
</div>
{/* Location Privacy */}
<div className="mb-6">
<label className="block text-sm font-medium text-gray-700 mb-2">
Location Privacy Level
</label>
<select
value={value.locationPrivacy}
onChange={(e) =>
handleChange(
'locationPrivacy',
e.target.value as 'exact' | 'fuzzy' | 'city' | 'country' | 'hidden'
)
}
className="w-full px-4 py-2 border border-gray-300 rounded-lg focus:ring-2 focus:ring-purple-500 focus:border-transparent"
>
<option value="exact">📍 Exact Location (Public)</option>
<option value="fuzzy">🎯 Fuzzy (±1-5km radius)</option>
<option value="city">🏙 City Level (~10km grid)</option>
<option value="country">🌍 Country/Region (~100km grid)</option>
<option value="hidden">🔒 Hidden (No location)</option>
</select>
<div className="mt-2 text-sm text-gray-600">
{value.locationPrivacy === 'exact' && (
<span className="text-red-600 font-medium">
Warning: Exact location may reveal your home address
</span>
)}
{value.locationPrivacy === 'fuzzy' && (
<span> Good balance of privacy and discoverability</span>
)}
{value.locationPrivacy === 'city' && (
<span> Only city-level information shared</span>
)}
{value.locationPrivacy === 'country' && (
<span> Only country/region visible</span>
)}
{value.locationPrivacy === 'hidden' && (
<span className="text-purple-600 font-medium">
🔒 Maximum privacy: Location completely hidden
</span>
)}
</div>
</div>
{/* Identity Privacy */}
<div className="mb-6">
<label className="block text-sm font-medium text-gray-700 mb-2">
Identity Privacy
</label>
<select
value={value.identityPrivacy}
onChange={(e) =>
handleChange(
'identityPrivacy',
e.target.value as 'real' | 'pseudonym' | 'anonymous'
)
}
className="w-full px-4 py-2 border border-gray-300 rounded-lg focus:ring-2 focus:ring-purple-500 focus:border-transparent"
>
<option value="real">👤 Real Name</option>
<option value="pseudonym">🎭 Pseudonym</option>
<option value="anonymous">🔒 Anonymous</option>
</select>
</div>
{/* Share Plant Details */}
<div className="mb-4">
<label className="flex items-center cursor-pointer">
<input
type="checkbox"
checked={value.sharePlantDetails}
onChange={(e) =>
handleChange('sharePlantDetails', e.target.checked)
}
className="w-5 h-5 text-purple-600 rounded focus:ring-2 focus:ring-purple-500"
/>
<span className="ml-3 text-gray-900 font-medium">
Share Plant Details (species, genus, family)
</span>
</label>
<p className="ml-8 text-sm text-gray-600 mt-1">
Uncheck to use generic plant identifiers
</p>
</div>
{/* Privacy Summary */}
<div className="mt-6 p-4 bg-purple-50 rounded-lg border border-purple-200">
<h3 className="font-semibold text-purple-900 mb-2">Privacy Summary</h3>
<ul className="text-sm text-purple-800 space-y-1">
<li>
Location: {value.locationPrivacy === 'exact' ? 'Visible to all' : 'Protected'}
</li>
<li>
Identity: {value.identityPrivacy === 'real' ? 'Real name' : 'Protected'}
</li>
<li>
Plant Info: {value.sharePlantDetails ? 'Shared' : 'Generic'}
</li>
<li>
Mode: {value.anonymousMode ? 'Anonymous 🔒' : 'Standard'}
</li>
</ul>
</div>
{/* Recommendations */}
{!loading && torStatus && torStatus.recommendations && (
<div className="mt-4 p-4 bg-blue-50 rounded-lg border border-blue-200">
<h3 className="font-semibold text-blue-900 mb-2">💡 Recommendations</h3>
<ul className="text-sm text-blue-800 space-y-1">
{torStatus.recommendations.map((rec: string, idx: number) => (
<li key={idx}> {rec}</li>
))}
</ul>
</div>
)}
</div>
);
}

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version: '3.8'
services:
# Tor daemon
tor:
image: goldy/tor-hidden-service:latest
container_name: localgreenchain-tor
environment:
# Hidden service configuration
SERVICE_NAME: localgreenchain
SERVICE_PORT: 80
SERVICE_HOST: app
SERVICE_HOST_PORT: 3001
volumes:
- tor-data:/var/lib/tor
- ./tor/torrc.example:/etc/tor/torrc:ro
ports:
- "9050:9050" # SOCKS proxy
- "9051:9051" # Control port
networks:
- localgreenchain-network
restart: unless-stopped
# LocalGreenChain application
app:
build: .
container_name: localgreenchain-app
environment:
- NODE_ENV=production
- TOR_ENABLED=true
- TOR_SOCKS_HOST=tor
- TOR_SOCKS_PORT=9050
- TOR_CONTROL_PORT=9051
- TOR_HIDDEN_SERVICE_DIR=/var/lib/tor/hidden_service
volumes:
- ./data:/app/data
- tor-data:/var/lib/tor:ro
depends_on:
- tor
networks:
- localgreenchain-network
restart: unless-stopped
command: bun run start
# Optional: nginx reverse proxy for additional security
nginx:
image: nginx:alpine
container_name: localgreenchain-nginx
ports:
- "80:80"
- "443:443"
volumes:
- ./nginx/nginx.conf:/etc/nginx/nginx.conf:ro
- ./nginx/ssl:/etc/nginx/ssl:ro
depends_on:
- app
networks:
- localgreenchain-network
restart: unless-stopped
volumes:
tor-data:
driver: local
networks:
localgreenchain-network:
driver: bridge

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import crypto from 'crypto';
/**
* Privacy and Anonymity Utilities for LocalGreenChain
* Provides tools for anonymous plant tracking while maintaining blockchain integrity
*/
export interface PrivacySettings {
anonymousMode: boolean;
locationPrivacy: 'exact' | 'fuzzy' | 'city' | 'country' | 'hidden';
identityPrivacy: 'real' | 'pseudonym' | 'anonymous';
sharePlantDetails: boolean;
}
export interface FuzzyLocation {
latitude: number;
longitude: number;
accuracy: number; // radius in km
displayName: string;
}
/**
* Generate anonymous user ID using cryptographic hash
*/
export function generateAnonymousId(): string {
const randomBytes = crypto.randomBytes(32);
return 'anon_' + crypto.createHash('sha256').update(randomBytes).digest('hex').substring(0, 16);
}
/**
* Generate pseudonymous wallet address
*/
export function generateWalletAddress(): string {
const randomBytes = crypto.randomBytes(20);
return '0x' + randomBytes.toString('hex');
}
/**
* Obfuscate location based on privacy level
* This prevents exact home address tracking while allowing geographic discovery
*/
export function obfuscateLocation(
latitude: number,
longitude: number,
privacyLevel: 'exact' | 'fuzzy' | 'city' | 'country' | 'hidden'
): FuzzyLocation {
switch (privacyLevel) {
case 'exact':
return {
latitude,
longitude,
accuracy: 0.1, // ~100m
displayName: 'Exact location',
};
case 'fuzzy':
// Add random offset within 1-5km radius
const fuzzRadius = 1 + Math.random() * 4; // 1-5 km
const angle = Math.random() * 2 * Math.PI;
const latOffset = (fuzzRadius / 111) * Math.cos(angle); // 111 km per degree
const lonOffset = (fuzzRadius / (111 * Math.cos(latitude * Math.PI / 180))) * Math.sin(angle);
return {
latitude: latitude + latOffset,
longitude: longitude + lonOffset,
accuracy: fuzzRadius,
displayName: `Within ${Math.round(fuzzRadius)} km`,
};
case 'city':
// Round to ~10km grid (0.1 degree ≈ 11km)
return {
latitude: Math.round(latitude * 10) / 10,
longitude: Math.round(longitude * 10) / 10,
accuracy: 10,
displayName: 'City area',
};
case 'country':
// Round to ~100km grid (1 degree ≈ 111km)
return {
latitude: Math.round(latitude),
longitude: Math.round(longitude),
accuracy: 100,
displayName: 'Country/Region',
};
case 'hidden':
return {
latitude: 0,
longitude: 0,
accuracy: 999999,
displayName: 'Location hidden',
};
default:
return obfuscateLocation(latitude, longitude, 'fuzzy');
}
}
/**
* Generate anonymous plant name
*/
export function generateAnonymousPlantName(plantType: string, generation: number): string {
const hash = crypto.randomBytes(4).toString('hex');
return `${plantType}-Gen${generation}-${hash}`;
}
/**
* Encrypt sensitive data for storage
*/
export function encryptData(data: string, key: string): string {
const algorithm = 'aes-256-cbc';
const keyHash = crypto.createHash('sha256').update(key).digest();
const iv = crypto.randomBytes(16);
const cipher = crypto.createCipheriv(algorithm, keyHash, iv);
let encrypted = cipher.update(data, 'utf8', 'hex');
encrypted += cipher.final('hex');
return iv.toString('hex') + ':' + encrypted;
}
/**
* Decrypt sensitive data
*/
export function decryptData(encryptedData: string, key: string): string {
const algorithm = 'aes-256-cbc';
const keyHash = crypto.createHash('sha256').update(key).digest();
const parts = encryptedData.split(':');
const iv = Buffer.from(parts[0], 'hex');
const encrypted = parts[1];
const decipher = crypto.createDecipheriv(algorithm, keyHash, iv);
let decrypted = decipher.update(encrypted, 'hex', 'utf8');
decrypted += decipher.final('utf8');
return decrypted;
}
/**
* Generate Tor-friendly onion address from plant ID
* This creates a deterministic onion-style identifier
*/
export function generateOnionIdentifier(plantId: string): string {
const hash = crypto.createHash('sha256').update(plantId).digest('hex');
return hash.substring(0, 16) + '.onion';
}
/**
* Create anonymous contact method
*/
export function createAnonymousContact(realEmail: string, privateKey: string): string {
// Hash email with private key to create anonymous identifier
const hash = crypto.createHash('sha256')
.update(realEmail + privateKey)
.digest('hex');
return `anon-${hash.substring(0, 12)}@localgreenchain.onion`;
}
/**
* Validate Tor connection
*/
export async function isTorConnection(req: any): Promise<boolean> {
// Check if request is coming through Tor
const forwardedFor = req.headers['x-forwarded-for'];
const realIp = req.headers['x-real-ip'];
// Tor exit nodes typically set specific headers
// This is a simplified check
return (
req.headers['x-tor-connection'] === 'true' ||
req.socket?.remoteAddress?.includes('127.0.0.1') // Tor proxy
);
}
/**
* Generate privacy report for plant
*/
export interface PrivacyReport {
locationPrivacy: string;
identityPrivacy: string;
dataEncryption: boolean;
torEnabled: boolean;
riskLevel: 'low' | 'medium' | 'high';
recommendations: string[];
}
export function generatePrivacyReport(settings: PrivacySettings): PrivacyReport {
const recommendations: string[] = [];
let riskLevel: 'low' | 'medium' | 'high' = 'low';
if (settings.locationPrivacy === 'exact') {
recommendations.push('Consider using fuzzy location to protect your privacy');
riskLevel = 'high';
}
if (settings.identityPrivacy === 'real') {
recommendations.push('Using real identity may compromise anonymity');
if (riskLevel === 'low') riskLevel = 'medium';
}
if (settings.sharePlantDetails && !settings.anonymousMode) {
recommendations.push('Sharing detailed plant info without anonymous mode enabled');
}
if (settings.anonymousMode && settings.locationPrivacy !== 'hidden') {
riskLevel = 'low';
recommendations.push('Good privacy settings enabled');
}
return {
locationPrivacy: settings.locationPrivacy,
identityPrivacy: settings.identityPrivacy,
dataEncryption: settings.anonymousMode,
torEnabled: false, // Will be detected at runtime
riskLevel,
recommendations: recommendations.length > 0 ? recommendations : ['Privacy settings are optimal'],
};
}

172
lib/services/tor.ts Normal file
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/**
* Tor Integration Service
* Provides Tor network connectivity for anonymous plant sharing
*/
import { SocksProxyAgent } from 'socks-proxy-agent';
export interface TorConfig {
enabled: boolean;
socksHost: string;
socksPort: number;
controlPort: number;
hiddenServiceDir?: string;
}
export class TorService {
private config: TorConfig;
private proxyAgent: any;
constructor(config?: Partial<TorConfig>) {
this.config = {
enabled: process.env.TOR_ENABLED === 'true',
socksHost: process.env.TOR_SOCKS_HOST || '127.0.0.1',
socksPort: parseInt(process.env.TOR_SOCKS_PORT || '9050'),
controlPort: parseInt(process.env.TOR_CONTROL_PORT || '9051'),
hiddenServiceDir: process.env.TOR_HIDDEN_SERVICE_DIR,
...config,
};
if (this.config.enabled) {
this.initializeProxy();
}
}
/**
* Initialize SOCKS proxy for Tor
*/
private initializeProxy(): void {
const proxyUrl = `socks5://${this.config.socksHost}:${this.config.socksPort}`;
this.proxyAgent = new SocksProxyAgent(proxyUrl);
}
/**
* Check if Tor is available and running
*/
async isAvailable(): Promise<boolean> {
if (!this.config.enabled) return false;
try {
// Try to fetch check.torproject.org through Tor
const response = await fetch('https://check.torproject.org/api/ip', {
// @ts-ignore
agent: this.proxyAgent,
signal: AbortSignal.timeout(5000),
});
const data = await response.json();
return data.IsTor === true;
} catch (error) {
console.error('Tor availability check failed:', error);
return false;
}
}
/**
* Fetch data through Tor network
*/
async fetchThroughTor(url: string, options: RequestInit = {}): Promise<Response> {
if (!this.config.enabled) {
throw new Error('Tor is not enabled');
}
return fetch(url, {
...options,
// @ts-ignore
agent: this.proxyAgent,
});
}
/**
* Get current Tor circuit info
*/
async getCircuitInfo(): Promise<{ country?: string; ip?: string }> {
try {
const response = await this.fetchThroughTor('https://check.torproject.org/api/ip');
return await response.json();
} catch (error) {
return {};
}
}
/**
* Request new Tor identity (new circuit)
*/
async requestNewIdentity(): Promise<boolean> {
// This would require Tor control port access
// For now, just return true if Tor is enabled
return this.config.enabled;
}
/**
* Get onion service hostname if available
*/
getOnionAddress(): string | null {
if (!this.config.hiddenServiceDir) return null;
try {
const fs = require('fs');
const path = require('path');
const hostnamePath = path.join(this.config.hiddenServiceDir, 'hostname');
if (fs.existsSync(hostnamePath)) {
return fs.readFileSync(hostnamePath, 'utf-8').trim();
}
} catch (error) {
console.error('Error reading onion address:', error);
}
return null;
}
/**
* Generate QR code for onion address
*/
async generateOnionQRCode(): Promise<string | null> {
const onionAddress = this.getOnionAddress();
if (!onionAddress) return null;
// In production, you'd use a QR code library
// For now, return the address
return `http://${onionAddress}`;
}
/**
* Check if request came through Tor
*/
isRequestFromTor(headers: any): boolean {
// Check various indicators that request came through Tor
return (
headers['x-tor-connection'] === 'true' ||
headers['x-forwarded-proto'] === 'tor' ||
false
);
}
}
// Singleton instance
let torService: TorService | null = null;
export function getTorService(): TorService {
if (!torService) {
torService = new TorService();
}
return torService;
}
/**
* Middleware to detect and mark Tor connections
*/
export function torDetectionMiddleware(req: any, res: any, next: any) {
const torService = getTorService();
// Mark request as coming from Tor if detected
req.isTorConnection = torService.isRequestFromTor(req.headers);
// Add Tor status to response headers
if (req.isTorConnection) {
res.setHeader('X-Tor-Enabled', 'true');
}
next();
}

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@ -26,7 +26,8 @@
"nprogress": "^0.2.0", "nprogress": "^0.2.0",
"react": "^17.0.2", "react": "^17.0.2",
"react-dom": "^17.0.2", "react-dom": "^17.0.2",
"react-hook-form": "^7.8.6" "react-hook-form": "^7.8.6",
"socks-proxy-agent": "^8.0.2"
}, },
"devDependencies": { "devDependencies": {
"@babel/core": "^7.12.9", "@babel/core": "^7.12.9",

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/**
* API Route: Register an anonymous plant
* POST /api/plants/register-anonymous
*
* This endpoint allows for privacy-preserving plant registration
*/
import type { NextApiRequest, NextApiResponse } from 'next';
import { getBlockchain, saveBlockchain } from '../../../lib/blockchain/manager';
import { PlantData } from '../../../lib/blockchain/types';
import {
generateAnonymousId,
generateWalletAddress,
obfuscateLocation,
generateAnonymousPlantName,
createAnonymousContact,
PrivacySettings,
} from '../../../lib/privacy/anonymity';
import { getTorService } from '../../../lib/services/tor';
interface AnonymousPlantRequest {
commonName: string;
scientificName?: string;
species?: string;
genus?: string;
family?: string;
location: {
latitude: number;
longitude: number;
};
privacySettings: PrivacySettings;
pseudonym?: string;
encryptionKey?: string;
}
export default async function handler(
req: NextApiRequest,
res: NextApiResponse
) {
if (req.method !== 'POST') {
return res.status(405).json({ error: 'Method not allowed' });
}
try {
const requestData: AnonymousPlantRequest = req.body;
// Validate required fields
if (!requestData.commonName || !requestData.location || !requestData.privacySettings) {
return res.status(400).json({
error: 'Missing required fields: commonName, location, privacySettings',
});
}
const { location, privacySettings } = requestData;
// Check if request came through Tor
const torService = getTorService();
const isTorConnection = torService.isRequestFromTor(req.headers);
// Generate anonymous identifiers
const anonymousUserId = generateAnonymousId();
const walletAddress = generateWalletAddress();
const plantId = `plant-${generateAnonymousId()}`;
// Obfuscate location based on privacy settings
const fuzzyLocation = obfuscateLocation(
location.latitude,
location.longitude,
privacySettings.locationPrivacy
);
// Determine display name based on privacy settings
let displayName: string;
if (privacySettings.identityPrivacy === 'anonymous') {
displayName = 'Anonymous Grower';
} else if (privacySettings.identityPrivacy === 'pseudonym' && requestData.pseudonym) {
displayName = requestData.pseudonym;
} else {
displayName = `Grower-${anonymousUserId.substring(0, 8)}`;
}
// Create anonymous contact
const anonymousEmail = createAnonymousContact(
anonymousUserId,
requestData.encryptionKey || 'default-key'
);
// Build plant data with privacy protections
const plantData: PlantData = {
id: plantId,
commonName: privacySettings.sharePlantDetails
? requestData.commonName
: generateAnonymousPlantName(requestData.commonName, 0),
scientificName: privacySettings.sharePlantDetails ? requestData.scientificName : undefined,
species: privacySettings.sharePlantDetails ? requestData.species : undefined,
genus: privacySettings.sharePlantDetails ? requestData.genus : undefined,
family: privacySettings.sharePlantDetails ? requestData.family : undefined,
propagationType: 'original',
generation: 0,
plantedDate: new Date().toISOString(),
status: 'growing',
location: {
latitude: fuzzyLocation.latitude,
longitude: fuzzyLocation.longitude,
address: fuzzyLocation.displayName,
city: privacySettings.locationPrivacy !== 'hidden' ? 'Privacy Protected' : undefined,
country: privacySettings.locationPrivacy === 'country' ? 'Anonymous Region' : undefined,
},
owner: {
id: anonymousUserId,
name: displayName,
email: anonymousEmail,
walletAddress: walletAddress,
},
childPlants: [],
registeredAt: new Date().toISOString(),
updatedAt: new Date().toISOString(),
notes: privacySettings.anonymousMode
? 'Registered anonymously via privacy mode'
: undefined,
};
const blockchain = getBlockchain();
// Register the plant
const block = blockchain.registerPlant(plantData);
// Save blockchain
saveBlockchain();
// Prepare response with privacy info
res.status(201).json({
success: true,
plant: block.plant,
privacy: {
anonymousId: anonymousUserId,
walletAddress: walletAddress,
locationAccuracy: fuzzyLocation.accuracy,
torConnection: isTorConnection,
privacyLevel: privacySettings.locationPrivacy,
},
block: {
index: block.index,
hash: block.hash,
timestamp: block.timestamp,
},
message: 'Plant registered anonymously',
warning: !isTorConnection
? 'For maximum privacy, consider accessing through Tor network'
: null,
});
} catch (error: any) {
console.error('Error registering anonymous plant:', error);
res.status(500).json({ error: error.message || 'Internal server error' });
}
}

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/**
* API Route: Check Tor status
* GET /api/privacy/tor-status
*/
import type { NextApiRequest, NextApiResponse } from 'next';
import { getTorService } from '../../../lib/services/tor';
export default async function handler(
req: NextApiRequest,
res: NextApiResponse
) {
if (req.method !== 'GET') {
return res.status(405).json({ error: 'Method not allowed' });
}
try {
const torService = getTorService();
// Check if Tor is enabled in configuration
const isEnabled = process.env.TOR_ENABLED === 'true';
// Check if request came through Tor
const isTorConnection = torService.isRequestFromTor(req.headers);
let isAvailable = false;
let circuitInfo = null;
let onionAddress = null;
if (isEnabled) {
// Check if Tor daemon is available
try {
isAvailable = await torService.isAvailable();
if (isAvailable) {
circuitInfo = await torService.getCircuitInfo();
onionAddress = torService.getOnionAddress();
}
} catch (error) {
console.error('Error checking Tor availability:', error);
}
}
res.status(200).json({
success: true,
tor: {
enabled: isEnabled,
available: isAvailable,
connectionThroughTor: isTorConnection,
onionAddress: onionAddress,
circuit: circuitInfo,
},
privacy: {
recommendTor: !isTorConnection,
privacyLevel: isTorConnection ? 'high' : 'standard',
ip: isTorConnection ? 'Hidden via Tor' : 'Visible',
},
recommendations: isTorConnection
? ['Your connection is private via Tor', 'Anonymous plant registration available']
: [
'For maximum privacy, access via Tor Browser',
'Download Tor from https://www.torproject.org',
`Or connect to our onion service: ${onionAddress || 'Not available'}`,
],
});
} catch (error: any) {
console.error('Error checking Tor status:', error);
res.status(500).json({ error: error.message || 'Internal server error' });
}
}

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@ -0,0 +1,360 @@
import { useState } from 'react';
import Link from 'next/link';
import Head from 'next/head';
import { useRouter } from 'next/router';
import PrivacySettings from '../../components/PrivacySettings';
import { PrivacySettings as IPrivacySettings } from '../../lib/privacy/anonymity';
export default function RegisterAnonymousPlant() {
const router = useRouter();
const [loading, setLoading] = useState(false);
const [error, setError] = useState('');
const [success, setSuccess] = useState(false);
const [walletAddress, setWalletAddress] = useState('');
const [formData, setFormData] = useState({
commonName: '',
scientificName: '',
species: '',
genus: '',
family: '',
latitude: '',
longitude: '',
pseudonym: '',
encryptionKey: '',
});
const [privacySettings, setPrivacySettings] = useState<IPrivacySettings>({
anonymousMode: true,
locationPrivacy: 'fuzzy',
identityPrivacy: 'anonymous',
sharePlantDetails: true,
});
const handleSubmit = async (e: React.FormEvent) => {
e.preventDefault();
setLoading(true);
setError('');
try {
const response = await fetch('/api/plants/register-anonymous', {
method: 'POST',
headers: { 'Content-Type': 'application/json' },
body: JSON.stringify({
commonName: formData.commonName,
scientificName: formData.scientificName || undefined,
species: formData.species || undefined,
genus: formData.genus || undefined,
family: formData.family || undefined,
location: {
latitude: parseFloat(formData.latitude),
longitude: parseFloat(formData.longitude),
},
privacySettings,
pseudonym: formData.pseudonym || undefined,
encryptionKey: formData.encryptionKey || undefined,
}),
});
const data = await response.json();
if (!response.ok) {
throw new Error(data.error || 'Failed to register plant');
}
setSuccess(true);
setWalletAddress(data.privacy.walletAddress);
setTimeout(() => {
router.push(`/plants/${data.plant.id}`);
}, 3000);
} catch (err: any) {
setError(err.message || 'An error occurred');
} finally {
setLoading(false);
}
};
const handleChange = (
e: React.ChangeEvent<HTMLInputElement | HTMLTextAreaElement>
) => {
setFormData({
...formData,
[e.target.name]: e.target.value,
});
};
const getCurrentLocation = () => {
if (navigator.geolocation) {
navigator.geolocation.getCurrentPosition(
(position) => {
setFormData({
...formData,
latitude: position.coords.latitude.toString(),
longitude: position.coords.longitude.toString(),
});
},
(error) => {
setError('Unable to get your location: ' + error.message);
}
);
} else {
setError('Geolocation is not supported by your browser');
}
};
return (
<div className="min-h-screen bg-gradient-to-br from-purple-50 to-indigo-100">
<Head>
<title>Anonymous Plant Registration - LocalGreenChain</title>
</Head>
{/* Header */}
<header className="bg-white shadow-sm border-b-2 border-purple-200">
<div className="max-w-7xl mx-auto px-4 py-6 sm:px-6 lg:px-8">
<div className="flex items-center justify-between">
<Link href="/">
<a className="text-2xl font-bold text-purple-800">
🌱 LocalGreenChain
</a>
</Link>
<nav className="flex gap-4">
<Link href="/plants/register">
<a className="px-4 py-2 bg-green-600 text-white rounded-lg hover:bg-green-700 transition">
Standard Registration
</a>
</Link>
<Link href="/plants/explore">
<a className="px-4 py-2 bg-blue-600 text-white rounded-lg hover:bg-blue-700 transition">
Explore Network
</a>
</Link>
</nav>
</div>
</div>
</header>
{/* Main Content */}
<main className="max-w-6xl mx-auto px-4 py-12 sm:px-6 lg:px-8">
<div className="mb-8 text-center">
<h1 className="text-4xl font-bold text-gray-900 mb-2">
🔒 Anonymous Plant Registration
</h1>
<p className="text-lg text-gray-600">
Register your plant with maximum privacy protection
</p>
</div>
{error && (
<div className="mb-6 p-4 bg-red-100 border border-red-400 text-red-700 rounded-lg">
{error}
</div>
)}
{success && (
<div className="mb-6 p-6 bg-green-100 border border-green-400 text-green-700 rounded-lg">
<h3 className="font-bold text-lg mb-2">
Plant registered anonymously!
</h3>
<p className="mb-2">Your anonymous wallet address:</p>
<p className="font-mono bg-white p-2 rounded text-sm break-all">
{walletAddress}
</p>
<p className="mt-2 text-sm">
Save this address to manage your plant. Redirecting...
</p>
</div>
)}
<div className="grid grid-cols-1 lg:grid-cols-3 gap-6">
{/* Left Column - Privacy Settings */}
<div className="lg:col-span-1">
<PrivacySettings
value={privacySettings}
onChange={setPrivacySettings}
showTorStatus={true}
/>
</div>
{/* Right Column - Plant Information */}
<div className="lg:col-span-2">
<div className="bg-white rounded-lg shadow-xl p-8">
<h2 className="text-2xl font-bold text-gray-900 mb-6">
Plant Information
</h2>
<form onSubmit={handleSubmit} className="space-y-6">
{/* Basic Plant Info */}
<div className="grid grid-cols-1 md:grid-cols-2 gap-4">
<div>
<label className="block text-sm font-medium text-gray-700 mb-1">
Common Name *
</label>
<input
type="text"
name="commonName"
required
value={formData.commonName}
onChange={handleChange}
className="w-full px-4 py-2 border border-gray-300 rounded-lg focus:ring-2 focus:ring-purple-500 focus:border-transparent"
placeholder="e.g., Tomato, Basil"
/>
</div>
{privacySettings.sharePlantDetails && (
<>
<div>
<label className="block text-sm font-medium text-gray-700 mb-1">
Scientific Name
</label>
<input
type="text"
name="scientificName"
value={formData.scientificName}
onChange={handleChange}
className="w-full px-4 py-2 border border-gray-300 rounded-lg focus:ring-2 focus:ring-purple-500 focus:border-transparent"
placeholder="e.g., Solanum lycopersicum"
/>
</div>
<div>
<label className="block text-sm font-medium text-gray-700 mb-1">
Genus
</label>
<input
type="text"
name="genus"
value={formData.genus}
onChange={handleChange}
className="w-full px-4 py-2 border border-gray-300 rounded-lg focus:ring-2 focus:ring-purple-500 focus:border-transparent"
/>
</div>
<div>
<label className="block text-sm font-medium text-gray-700 mb-1">
Family
</label>
<input
type="text"
name="family"
value={formData.family}
onChange={handleChange}
className="w-full px-4 py-2 border border-gray-300 rounded-lg focus:ring-2 focus:ring-purple-500 focus:border-transparent"
/>
</div>
</>
)}
</div>
{/* Location */}
<div>
<h3 className="text-lg font-semibold text-gray-900 mb-4">
Location (will be obfuscated based on privacy settings)
</h3>
<div className="grid grid-cols-1 md:grid-cols-2 gap-4">
<div>
<label className="block text-sm font-medium text-gray-700 mb-1">
Latitude *
</label>
<input
type="number"
step="any"
name="latitude"
required
value={formData.latitude}
onChange={handleChange}
className="w-full px-4 py-2 border border-gray-300 rounded-lg focus:ring-2 focus:ring-purple-500 focus:border-transparent"
/>
</div>
<div>
<label className="block text-sm font-medium text-gray-700 mb-1">
Longitude *
</label>
<input
type="number"
step="any"
name="longitude"
required
value={formData.longitude}
onChange={handleChange}
className="w-full px-4 py-2 border border-gray-300 rounded-lg focus:ring-2 focus:ring-purple-500 focus:border-transparent"
/>
</div>
<div className="md:col-span-2">
<button
type="button"
onClick={getCurrentLocation}
className="px-4 py-2 bg-blue-600 text-white rounded-lg hover:bg-blue-700 transition"
>
📍 Use My Current Location
</button>
<p className="mt-2 text-sm text-gray-600">
Your exact location will be obfuscated based on your
privacy settings
</p>
</div>
</div>
</div>
{/* Optional Pseudonym */}
{privacySettings.identityPrivacy === 'pseudonym' && (
<div>
<label className="block text-sm font-medium text-gray-700 mb-1">
Pseudonym (optional)
</label>
<input
type="text"
name="pseudonym"
value={formData.pseudonym}
onChange={handleChange}
className="w-full px-4 py-2 border border-gray-300 rounded-lg focus:ring-2 focus:ring-purple-500 focus:border-transparent"
placeholder="Your chosen display name"
/>
</div>
)}
{/* Encryption Key */}
{privacySettings.anonymousMode && (
<div>
<label className="block text-sm font-medium text-gray-700 mb-1">
Encryption Key (optional)
</label>
<input
type="password"
name="encryptionKey"
value={formData.encryptionKey}
onChange={handleChange}
className="w-full px-4 py-2 border border-gray-300 rounded-lg focus:ring-2 focus:ring-purple-500 focus:border-transparent"
placeholder="Optional password for extra security"
/>
<p className="mt-1 text-sm text-gray-600">
Used to generate your anonymous contact address
</p>
</div>
)}
{/* Submit Button */}
<div className="flex gap-4">
<button
type="submit"
disabled={loading}
className="flex-1 px-6 py-3 bg-purple-600 text-white font-semibold rounded-lg hover:bg-purple-700 transition disabled:opacity-50 disabled:cursor-not-allowed"
>
{loading ? 'Registering...' : '🔒 Register Anonymously'}
</button>
<Link href="/">
<a className="px-6 py-3 bg-gray-200 text-gray-700 font-semibold rounded-lg hover:bg-gray-300 transition">
Cancel
</a>
</Link>
</div>
</form>
</div>
</div>
</div>
</main>
</div>
);
}

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tor/torrc.example Normal file
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# Tor Configuration for LocalGreenChain Hidden Service
# Copy this file to /etc/tor/torrc or ~/.tor/torrc and edit as needed
# SOCKS proxy port (for outgoing Tor connections)
SocksPort 9050
# Control port for managing Tor
ControlPort 9051
# Hidden Service Configuration
# This allows your LocalGreenChain instance to be accessible via .onion address
HiddenServiceDir /var/lib/tor/localgreenchain/
HiddenServicePort 80 127.0.0.1:3001
# Optional: Multiple hidden service ports
# HiddenServicePort 443 127.0.0.1:3001
# Logging (for debugging)
Log notice file /var/log/tor/notices.log
# Privacy and Security Settings
# Reject non-anonymous single hop circuits
RejectAllOutboundTraffic 0
# Circuit isolation for better privacy
IsolateDestAddr 1
IsolateDestPort 1
# Bridge configuration (if needed to bypass censorship)
# UseBridges 1
# Bridge obfs4 [bridge address]
# Bandwidth settings (optional)
# RelayBandwidthRate 100 KB
# RelayBandwidthBurst 200 KB
# Directory for storing Tor data
DataDirectory /var/lib/tor
# Run as daemon
RunAsDaemon 1