Network-Level Privacy Protection

// Network Privacy Configuration and Monitoring Tool
class NetworkPrivacyManager {
    constructor() {
        this.privacyLevels = {
            basic: {
                description: "Basic privacy with minimal setup",
                tools: ["VPN", "Private networks"],
                effectiveness: 3,
                complexity: "Low"
            },
            intermediate: {
                description: "Good privacy with moderate setup",
                tools: ["Tor Browser", "VPN + Tor"],
                effectiveness: 6,
                complexity: "Medium"
            },
            advanced: {
                description: "High privacy with advanced configuration",
                tools: ["Tor-only", "Personal nodes", "Multiple VPNs"],
                effectiveness: 9,
                complexity: "High"
            }
        };
        
        this.walletConfigs = {
            electrum: {
                torSettings: {
                    proxy: "127.0.0.1:9050",
                    proxyMode: "tor",
                    timeout: 30000
                },
                recommendations: [
                    "Use privacy-focused Electrum servers",
                    "Disable server selection by ping time",
                    "Use manual server selection"
                ]
            },
            wasabi: {
                torSettings: {
                    builtInTor: true,
                    useTor: true,
                    torBrowserPath: "auto"
                },
                recommendations: [
                    "Use built-in Tor integration",
                    "Keep Tor updated",
                    "Monitor connection status"
                ]
            }
        };
    }
    
    generatePrivacySetup(level = "intermediate") {
        const config = this.privacyLevels[level];
        
        return {
            level: level,
            description: config.description,
            setupSteps: this.getSetupSteps(level),
            walletConfiguration: this.getWalletConfig(level),
            monitoringTools: this.getMonitoringTools(level),
            maintenanceTasks: this.getMaintenanceTasks(level)
        };
    }
    
    getSetupSteps(level) {
        const steps = {
            basic: [
                "1. Install reputable VPN service",
                "2. Configure VPN with Bitcoin-friendly servers",
                "3. Test connection and DNS leaks",
                "4. Configure wallet to use VPN connection"
            ],
            intermediate: [
                "1. Install Tor Browser or Tor daemon",
                "2. Configure Tor proxy settings",
                "3. Test Tor connectivity and speed",
                "4. Configure wallet to use Tor proxy (127.0.0.1:9050)",
                "5. Test wallet connectivity through Tor",
                "6. Set up backup VPN for when Tor is unavailable"
            ],
            advanced: [
                "1. Set up dedicated Tor-only system",
                "2. Configure multiple Tor circuits",
                "3. Run personal Bitcoin node behind Tor",
                "4. Set up Electrum server behind Tor",
                "5. Configure wallet to use personal infrastructure",
                "6. Implement traffic obfuscation",
                "7. Set up monitoring and alerts"
            ]
        };
        
        return steps[level] || steps.intermediate;
    }
    
    getWalletConfig(level) {
        if (level === "advanced") {
            return {
                electrum: {
                    ...this.walletConfigs.electrum.torSettings,
                    servers: ["your-tor-server.onion:50002"],
                    autoConnect: false
                },
                wasabi: {
                    ...this.walletConfigs.wasabi.torSettings,
                    torBrowserPath: "/usr/bin/tor-browser"
                }
            };
        }
        
        return {
            electrum: this.walletConfigs.electrum.torSettings,
            wasabi: this.walletConfigs.wasabi.torSettings
        };
    }
    
    getMonitoringTools(level) {
        return {
            basic: ["VPN status check", "DNS leak test"],
            intermediate: ["Tor connectivity test", "IP address checker", "DNS leak test"],
            advanced: ["Tor circuit monitoring", "Network traffic analysis", "Node sync monitoring", "Electrum server status"]
        }[level];
    }
    
    getMaintenanceTasks(level) {
        return {
            daily: ["Check VPN/Tor connection status", "Verify wallet connectivity"],
            weekly: ["Test network privacy setup", "Update Tor/VPN software"],
            monthly: ["Review and update server lists", "Test alternative Tor circuits"],
            quarterly: ["Security audit of setup", "Backup configuration files"]
        };
    }
    
    validatePrivacySetup() {
        return {
            checks: [
                {
                    name: "IP Address Check",
                    description: "Verify external IP is masked",
                    test: "Visit whatismyipaddress.com through Bitcoin client",
                    expected: "IP should match VPN/Tor exit node"
                },
                {
                    name: "DNS Leak Test",
                    description: "Ensure DNS queries go through privacy network",
                    test: "Use dnsleaktest.com",
                    expected: "DNS servers should match privacy service"
                },
                {
                    name: "Bitcoin Node Connectivity",
                    description: "Verify Bitcoin client can connect to network",
                    test: "Check wallet sync status",
                    expected: "Wallet should sync successfully"
                },
                {
                    name: "Transaction Broadcasting",
                    description: "Test transaction broadcast through privacy network",
                    test: "Send small test transaction",
                    expected: "Transaction should appear in mempool"
                }
            ]
        };
    }
    
    troubleshootCommonIssues() {
        return {
            "Cannot connect to Bitcoin network": [
                "Check Tor/VPN connection status",
                "Verify proxy settings in wallet",
                "Test with different Tor circuit",
                "Check firewall settings"
            ],
            "Slow transaction broadcasting": [
                "Switch to faster Tor circuit",
                "Try different Electrum servers",
                "Use local Bitcoin node if available",
                "Increase transaction fees temporarily"
            ],
            "Wallet won't sync": [
                "Check network connectivity",
                "Verify proxy configuration",
                "Try connecting to different servers",
                "Restart wallet application"
            ]
        };
    }
}

// Usage example
const privacyManager = new NetworkPrivacyManager();
const setup = privacyManager.generatePrivacySetup("intermediate");
const validation = privacyManager.validatePrivacySetup();
console.log("Privacy Setup:", setup);
console.log("Validation Checks:", validation);