# Enhanced File Analysis Help System

## 🎯 Overview

This document describes the comprehensive improvements made to the container's help system, addressing all the issues you encountered and providing a robust, offline-capable help experience.

## ✅ Problems Fixed

### 1. **Navi Configuration Issues**
- **Problem**: `invalid preview window layout: up:2:nohidden` errors
- **Solution**: Created proper navi configuration file at `/root/.config/navi/config.yaml` with correct fzf settings
- **Result**: Navi now works without preview window errors

### 2. **Inaccurate Tool Information**
- **Problem**: Tools listed that don't exist (evince, ioc_parser), unclear command names
- **Solution**: Created curated tools database with only verified, available tools and their exact command names
- **Result**: `fhelp tools` now shows accurate, actionable information

### 3. **Missing Cheat Sheets**
- **Problem**: Limited or missing practical examples for PDF/malware analysis
- **Solution**: Downloaded existing cheat sheets from popular repos and enhanced them with analysis-specific examples
- **Result**: Comprehensive cheat sheets for analysis workflows with exact commands

### 4. **TLDR Cache Issues**
- **Problem**: TLDR not finding analysis-specific tools
- **Solution**: Created custom TLDR pages for pdfid.py, pdf-parser.py, peepdf, capa
- **Result**: `fhelp quick <tool>` now works for specialized analysis tools

### 5. **Command Clarity**
- **Problem**: Users couldn't find the exact command to run (e.g., confusion about ioc_parser)
- **Solution**: All help now shows exact command syntax with practical examples
- **Result**: Clear, copy-pasteable commands for all analysis scenarios

## 🛠️ Enhanced Components

### 1. **Accurate Tools Database** (`/opt/remnux-docs/tools.db`)
- Only verified, available tools
- Exact command names (not just descriptions)
- Usage examples for each tool
- Availability status indicators

### 2. **Enhanced Cheat Sheets** (`/opt/cheatsheets/`)
- Downloads existing cheat sheets from `cheat/cheatsheets` repo
- Adds analysis-specific examples on top
- Covers PDF analysis workflow, malware analysis workflow
- Security-focused examples (PDF flattening, password removal)

### 3. **Interactive Navi Sheets** (`/opt/navi-cheats/`)
- Dynamic command completion with file discovery
- Interactive parameter selection
- Context-aware suggestions

### 4. **Custom TLDR Pages** (`/root/.local/share/tldr/pages/common/`)
- Analysis-specific tools not in standard TLDR
- Follows standard TLDR format
- Quick reference examples

### 5. **Unified fhelp Command**
- Single interface to all help systems
- Clear command structure with examples
- Workflow-based help (PDF, malware analysis)
- Offline capability verification

## 📋 Usage Examples

### Find Tools
```bash
fhelp tools pdf          # Find PDF analysis tools
fhelp tools malware      # Find malware analysis tools
fhelp tools --interactive # Interactive tool browser
```

### Get Command Examples
```bash
fhelp cheat pdf          # PDF analysis workflow
fhelp cheat pdftk        # pdftk-specific examples  
fhelp quick tar          # Quick tar examples
fhelp examples           # Interactive example browser
```

### Analysis Workflows
```bash
fhelp pdf               # Step-by-step PDF analysis
fhelp malware           # Step-by-step malware analysis
```

### Verification
```bash
fhelp --offline         # Check all help systems work offline
fhelp --all             # Complete overview of capabilities
```

## 🎯 Key Improvements for File Analysis

### PDF Security Analysis
- **Flattening**: `pdftk suspicious.pdf output safe.pdf flatten`
- **Password Removal**: `qpdf --password=PASSWORD --decrypt encrypted.pdf decrypted.pdf`  
- **JavaScript Detection**: `strings document.pdf | grep -i "javascript"`
- **Safe Preview**: `convert document.pdf[0] preview.png`

### Malware Analysis Workflow
- **Capability Detection**: `capa malware.exe`
- **JavaScript Sandbox**: `box-js --output-dir=/tmp suspicious.js`
- **Office Document Analysis**: `oledump.py document.doc`
- **Binary Analysis**: `binwalk malware.bin`

### Data Analysis
- **Interactive Exploration**: `vd data.csv`
- **URL Analysis**: `unfurl http://suspicious.com/path`

## 🔧 Testing

Run comprehensive tests with:
```bash
./test-help-system.sh
```

This validates:
- All help commands work correctly
- Tool availability matches documentation  
- File structure is correct
- Integration between help systems works

## 📦 Build Instructions

The enhanced help system is automatically included when building:

```bash
docker build -f Dockerfile.remnux -t tabledevil/file-analysis:enhanced .
```

## 🎉 Benefits

1. **No More Missing Tools**: Only lists tools that actually exist with correct names
2. **Practical Examples**: Real-world analysis commands, not just descriptions  
3. **Workflow Guidance**: Step-by-step analysis procedures
4. **Offline Capable**: Works completely offline with comprehensive documentation
5. **Multiple Interfaces**: Choose between fhelp, navi, cheat, tldr based on preference
6. **Security Focus**: Emphasizes safe analysis practices (PDF flattening, sandboxing)

## 📱 Quick Reference Card

| Command | Purpose | Example |
|---------|---------|---------|
| `fhelp` | Main help system | `fhelp tools pdf` |
| `fhelp cheat <tool>` | Tool examples | `fhelp cheat pdftk` |  
| `fhelp pdf` | PDF workflow | Shows step-by-step PDF analysis |
| `fhelp malware` | Malware workflow | Shows malware analysis steps |
| `navi` | Interactive browser | Browse all examples with fzf |
| `find-tool <term>` | Tool search | `find-tool javascript` |
| `tldr <tool>` | Quick reference | `tldr tar` |
| `cheat <tool>` | Detailed examples | `cheat 7z` |

This enhanced system provides comprehensive, accurate, offline-capable help for file analysis workflows while leveraging existing community resources and adding specialized analysis examples.