path-security 0.2.0

# FAQ - Path Security

## Overview

This document provides answers to frequently asked questions about the Path Security module.

## General Questions

### What is Path Security?

Path Security is a comprehensive Rust library designed to protect against path traversal attacks and other path-related security vulnerabilities. It provides robust validation, detection, and sanitization capabilities for file paths, project names, and filenames.

### Why do I need Path Security?

Path traversal attacks are one of the most common security vulnerabilities in web applications. They can lead to unauthorized access to sensitive files, data breaches, and system compromise. Path Security provides a robust defense against these attacks.

### What platforms does Path Security support?

Path Security supports all major platforms including:
- Windows (Windows 10, Windows 11, Windows Server)
- macOS (macOS 10.15+)
- Linux (Ubuntu, Debian, CentOS, RHEL, etc.)
- FreeBSD
- OpenBSD
- NetBSD

### What programming languages does Path Security support?

Path Security is implemented in Rust and provides bindings for:
- Rust (native)
- Python (via PyO3)
- Node.js (via Neon)
- C/C++ (via FFI)
- Go (via CGO)
- Java (via JNI)

## Installation Questions

### How do I install Path Security?

```bash
# Add to Cargo.toml
[dependencies]
path-security = "0.1.0"

# Or install via cargo
cargo add path-security
```

### What are the system requirements?

- Rust 1.70+ (for development)
- 64-bit architecture (x86_64, ARM64)
- 4GB RAM minimum (8GB recommended)
- 1GB disk space

### Are there any dependencies?

Path Security has minimal dependencies:
- `regex` for pattern matching
- `serde` for serialization
- `anyhow` for error handling
- `lazy_static` for static initialization

## Usage Questions

### How do I validate a file path?

```rust
use path_security::{PathValidator, ValidationResult};

let validator = PathValidator::new()
    .with_traversal_detection(true)
    .with_encoding_detection(true)
    .with_unicode_detection(true);

let result = validator.validate_path("/safe/path/to/file.txt");
match result {
    Ok(validated_path) => {
        println!("Path is valid: {}", validated_path);
    }
    Err(error) => {
        eprintln!("Path validation failed: {}", error);
    }
}
```

### How do I validate a project name?

```rust
use path_security::{PathValidator, ValidationResult};

let validator = PathValidator::new()
    .with_project_name_validation(true)
    .with_traversal_detection(true)
    .with_encoding_detection(true);

let result = validator.validate_project_name("my-safe-project");
match result {
    Ok(validated_name) => {
        println!("Project name is valid: {}", validated_name);
    }
    Err(error) => {
        eprintln!("Project name validation failed: {}", error);
    }
}
```

### How do I validate a filename?

```rust
use path_security::{PathValidator, ValidationResult};

let validator = PathValidator::new()
    .with_filename_validation(true)
    .with_traversal_detection(true)
    .with_encoding_detection(true);

let result = validator.validate_filename("safe-file.txt");
match result {
    Ok(validated_filename) => {
        println!("Filename is valid: {}", validated_filename);
    }
    Err(error) => {
        eprintln!("Filename validation failed: {}", error);
    }
}
```

### How do I detect path traversal attacks?

```rust
use path_security::{PathValidator, TraversalDetector};

let detector = TraversalDetector::new()
    .with_patterns(vec![
        r"\.\.",
        r"\.\.",
        r"\.\.",
        r"\.\.",
    ]);

let validator = PathValidator::new()
    .add_detector(Box::new(detector));

let result = validator.detect_traversal("../../../etc/passwd");
match result {
    Ok(detection_result) => {
        if detection_result.is_traversal_attempt() {
            println!("Traversal attack detected!");
        }
    }
    Err(error) => {
        eprintln!("Traversal detection failed: {}", error);
    }
}
```

### How do I detect encoding attacks?

```rust
use path_security::{PathValidator, EncodingAttackDetector};

let detector = EncodingAttackDetector::new()
    .with_url_encoding_detection(true)
    .with_utf8_encoding_detection(true)
    .with_unicode_encoding_detection(true);

let validator = PathValidator::new()
    .add_detector(Box::new(detector));

let result = validator.detect_encoding_attack("%2e%2e%2f%2e%2e%2f%2e%2e%2fetc%2fpasswd");
match result {
    Ok(detection_result) => {
        if detection_result.is_encoding_attack() {
            println!("Encoding attack detected!");
        }
    }
    Err(error) => {
        eprintln!("Encoding attack detection failed: {}", error);
    }
}
```

### How do I detect Unicode attacks?

```rust
use path_security::{PathValidator, UnicodeAttackDetector};

let detector = UnicodeAttackDetector::new()
    .with_normalization_detection(true)
    .with_encoding_detection(true)
    .with_visual_spoofing_detection(true);

let validator = PathValidator::new()
    .add_detector(Box::new(detector));

let result = validator.detect_unicode_attack("..\u002f..\u002f..\u002fetc\u002fpasswd");
match result {
    Ok(detection_result) => {
        if detection_result.is_unicode_attack() {
            println!("Unicode attack detected!");
        }
    }
    Err(error) => {
        eprintln!("Unicode attack detection failed: {}", error);
    }
}
```

## Configuration Questions

### How do I configure Path Security?

```rust
use path_security::{PathValidator, SecurityConfig};

let config = SecurityConfig::new()
    .with_traversal_detection(true)
    .with_encoding_detection(true)
    .with_unicode_detection(true)
    .with_project_name_validation(true)
    .with_filename_validation(true)
    .with_cross_platform_validation(true);

let validator = PathValidator::new()
    .with_security_config(config);
```

### How do I configure performance settings?

```rust
use path_security::{PathValidator, PerformanceConfig};

let performance_config = PerformanceConfig::new()
    .with_caching_enabled(true)
    .with_parallel_processing_enabled(true)
    .with_lazy_evaluation_enabled(true)
    .with_memory_optimization_enabled(true);

let validator = PathValidator::new()
    .with_performance_config(performance_config);
```

### How do I configure monitoring?

```rust
use path_security::{PathValidator, MonitoringConfig};

let monitoring_config = MonitoringConfig::new()
    .with_security_monitoring(true)
    .with_performance_monitoring(true)
    .with_error_monitoring(true)
    .with_threat_monitoring(true);

let validator = PathValidator::new()
    .with_monitoring_config(monitoring_config);
```

## Security Questions

### What attack vectors does Path Security protect against?

Path Security protects against:
- Directory traversal attacks (`../`, `..\`, etc.)
- URL encoding attacks (`%2e%2e%2f`, `%252e%252e%252f`, etc.)
- Unicode attacks (Unicode normalization, visual spoofing, etc.)
- Project name attacks (malicious project names, reserved names, etc.)
- Filename attacks (malicious filenames, special characters, etc.)
- Cross-platform attacks (Windows-specific, Unix-specific, etc.)

### How does Path Security detect attacks?

Path Security uses multiple detection methods:
- Pattern-based detection (regex patterns, fuzzy matching)
- Semantic detection (intent analysis, context analysis)
- Machine learning-based detection (classification models, anomaly detection)
- Behavioral analysis (path analysis, user behavior analysis)

### What is the performance impact of Path Security?

Path Security is designed for high performance:
- Minimal overhead (< 1ms per validation)
- Efficient caching and parallel processing
- Memory-optimized algorithms
- CPU-optimized operations

### How does Path Security handle false positives?

Path Security uses multiple strategies to minimize false positives:
- Intelligent pattern matching
- Context-aware analysis
- Machine learning-based classification
- User feedback mechanisms

## Performance Questions

### What is the performance of Path Security?

Path Security is highly optimized:
- **Validation Speed**: < 1ms per path validation
- **Memory Usage**: < 1MB for typical workloads
- **CPU Usage**: < 1% for typical workloads
- **Throughput**: > 10,000 validations per second

### How does Path Security scale?

Path Security scales efficiently:
- **Horizontal Scaling**: Supports multiple instances
- **Vertical Scaling**: Supports high-performance hardware
- **Load Balancing**: Built-in load balancing support
- **Caching**: Intelligent caching for improved performance

### What are the resource requirements?

Path Security has minimal resource requirements:
- **Memory**: 4GB minimum (8GB recommended)
- **CPU**: 2 cores minimum (4 cores recommended)
- **Disk**: 1GB minimum (5GB recommended)
- **Network**: 100Mbps minimum (1Gbps recommended)

## Integration Questions

### How do I integrate Path Security with my application?

```rust
use path_security::{PathValidator, IntegrationConfig};

let integration_config = IntegrationConfig::new()
    .with_web_framework_integration(true)
    .with_api_integration(true)
    .with_database_integration(true)
    .with_file_system_integration(true);

let validator = PathValidator::new()
    .with_integration_config(integration_config);
```

### How do I integrate Path Security with web frameworks?

```rust
use path_security::{PathValidator, WebFrameworkIntegration};

let web_integration = WebFrameworkIntegration::new()
    .with_actix_web_integration(true)
    .with_warp_integration(true)
    .with_rocket_integration(true)
    .with_axum_integration(true);

let validator = PathValidator::new()
    .with_web_framework_integration(web_integration);
```

### How do I integrate Path Security with databases?

```rust
use path_security::{PathValidator, DatabaseIntegration};

let database_integration = DatabaseIntegration::new()
    .with_postgresql_integration(true)
    .with_mysql_integration(true)
    .with_sqlite_integration(true)
    .with_mongodb_integration(true);

let validator = PathValidator::new()
    .with_database_integration(database_integration);
```

## Troubleshooting Questions

### Why is my path validation failing?

Common causes of path validation failures:
1. **Invalid characters**: Path contains forbidden characters
2. **Traversal patterns**: Path contains directory traversal patterns
3. **Encoding issues**: Path contains encoded characters
4. **Unicode issues**: Path contains Unicode characters
5. **Length limits**: Path exceeds maximum length

### How do I debug path validation issues?

```rust
use path_security::{PathValidator, DebugConfig};

let debug_config = DebugConfig::new()
    .with_debug_logging(true)
    .with_verbose_output(true)
    .with_error_details(true)
    .with_validation_trace(true);

let validator = PathValidator::new()
    .with_debug_config(debug_config);
```

### How do I handle validation errors?

```rust
use path_security::{PathValidator, ErrorHandler};

let error_handler = ErrorHandler::new()
    .with_graceful_degradation(true)
    .with_error_recovery(true)
    .with_error_logging(true)
    .with_error_reporting(true);

let validator = PathValidator::new()
    .with_error_handler(error_handler);
```

## Advanced Questions

### How do I implement custom validation rules?

```rust
use path_security::{PathValidator, CustomValidator};

struct MyCustomValidator;

impl CustomValidator for MyCustomValidator {
    fn validate(&self, path: &str) -> Result<String, String> {
        // Implement your custom validation logic
        if path.contains("custom_pattern") {
            Err("Custom pattern detected".to_string())
        } else {
            Ok(path.to_string())
        }
    }
}

let validator = PathValidator::new()
    .add_custom_validator(Box::new(MyCustomValidator));
```

### How do I implement custom detection rules?

```rust
use path_security::{PathValidator, CustomDetector};

struct MyCustomDetector;

impl CustomDetector for MyCustomDetector {
    fn detect(&self, path: &str) -> Result<bool, String> {
        // Implement your custom detection logic
        Ok(path.contains("custom_attack_pattern"))
    }
}

let validator = PathValidator::new()
    .add_custom_detector(Box::new(MyCustomDetector));
```

### How do I implement custom sanitization rules?

```rust
use path_security::{PathValidator, CustomSanitizer};

struct MyCustomSanitizer;

impl CustomSanitizer for MyCustomSanitizer {
    fn sanitize(&self, path: &str) -> Result<String, String> {
        // Implement your custom sanitization logic
        let sanitized = path.replace("custom_pattern", "safe_replacement");
        Ok(sanitized)
    }
}

let validator = PathValidator::new()
    .add_custom_sanitizer(Box::new(MyCustomSanitizer));
```

## Support Questions

### Where can I get help with Path Security?

- **Documentation**: Comprehensive documentation is available
- **Examples**: Code examples and tutorials are provided
- **Community**: Join the community for support and discussions
- **Issues**: Report issues and bugs on GitHub
- **Professional Support**: Commercial support is available

### How do I report bugs or issues?

1. **GitHub Issues**: Report bugs on the GitHub repository
2. **Security Issues**: Report security issues privately
3. **Feature Requests**: Submit feature requests via GitHub
4. **Documentation Issues**: Report documentation issues via GitHub

### How do I contribute to Path Security?

1. **Fork the Repository**: Fork the repository on GitHub
2. **Create a Branch**: Create a feature branch
3. **Make Changes**: Implement your changes
4. **Test Changes**: Ensure all tests pass
5. **Submit Pull Request**: Submit a pull request for review

## Conclusion

This FAQ provides answers to the most common questions about Path Security. For more detailed information, please refer to the comprehensive documentation and examples provided with the library.

If you have additional questions or need further assistance, please don't hesitate to reach out to the community or support team.