# Detector Module Improvement Plan

Command to reread CLAUDE.md: `cat ~/.claude/CLAUDE.md`

## Current State
- Only detects if ports are active/available
- Has unimplemented `detectType()` method

## Proposed Improvements

### 1. Implement `detectType()` method
- Detect service type running on port (HTTP, HTTPS, SSH, FTP, etc.)
- Use protocol-specific handshakes without external services

### 2. Add Network Interface Detection
- List local network interfaces
- Get IP addresses, MAC addresses
- Detect network connectivity status

### 3. Add Local DNS Capabilities
- Resolve hostnames using local DNS
- Check DNS configuration
- Detect local DNS servers

### 4. Add Protocol Detection
- HTTP/HTTPS detection with TLS version
- WebSocket support detection
- TCP/UDP differentiation

### 5. Add Network Diagnostics
- Ping functionality (ICMP)
- Traceroute capabilities
- MTU discovery
- Network latency measurement

### 6. Add Service Fingerprinting
- Identify common services by banner grabbing
- Detect service versions locally
- Support for common protocols (SSH, FTP, SMTP, etc.)

### 7. Add Local Network Discovery
- Discover devices on local network
- ARP scanning for local subnet
- mDNS/Bonjour service discovery

### 8. Enhance API
- Add batch checking for multiple URLs/ports
- Add timeout configuration
- Add detailed response objects with metadata

## Implementation Priority
1. ✅ Implement `detectType()` - COMPLETED
2. ✅ Add protocol detection for HTTP/HTTPS - COMPLETED
3. ✅ Add service fingerprinting - COMPLETED (basic version)
4. ✅ Create enhanced API with IDetectorResult - COMPLETED
5. Add network diagnostics - TODO
6. Add local network discovery - TODO
7. Add batch operations - TODO

## What Was Implemented
- ✅ `detectType()` method with protocol-specific detection
- ✅ HTTP/HTTPS detection with proper protocol handling
- ✅ SSH service detection via banner
- ✅ Service fingerprinting for common protocols (FTP, SMTP, MySQL, etc.)
- ✅ IDetectorResult interface for detailed responses
- ✅ IDetectorOptions for configuration
- ✅ Backward compatibility with `isActiveSimple()` method
- ✅ Banner grabbing for unknown services
- ✅ Tests for new functionality - IMPROVED with comprehensive test suite (19 tests)