Crate stalkermap 

StalkerMap

A comprehensive Rust library for building CLI network scanner applications with robust input validation, terminal interaction, and URL parsing capabilities.

Features

• For advanced users: see docs for dns::resolver::agnostic and dns::compressor::agnostic

Currently Available

(All feature versions)

• Input Sanitization & Validation - Type-safe input validation with composable filters
• Interactive Terminal Interface - User-friendly CLI input with validation loops
• URL Parsing - Comprehensive HTTP/HTTPS URL parsing with host validation

(“std” feature)

• DNS Resolver - Blocking DNS queries with support for multiple record types (A, MX, TXT, SOA, PTR, WKS, etc.)

(“tokio-dep” feature)

• DNS Resolver - Async DNS queries with support for multiple record types (A, MX, TXT, SOA, PTR, WKS, etc.)

(“Agnostic” feature)

• DNS message structure - With encoder helpers (RFC1035 compliant)
• DNS message compressor - For hostnames (RFC1035 compliant)

Planned Features

• Port Scanning - Efficient port scanning with customizable options
• Directory Enumeration - Web directory and file discovery
• Report Generation - Export scan results to various formats

Feature Variants

• Agnostic version

  • Only parsing, encoding/decoding of DNS messages and helpers.
  • No executor or transport included — user chooses their own.
  • Fast to integrate, lightweight, perfect for advanced/custom usage.

• Default (std) version

  • Blocking TCP/UDP transport using std::net.
  • Fully functional DNS resolver for blocking queries

• Tokio (async) version

  • Replaces blocking transport with tokio::net for async TCP/UDP.
  • Supports non-blocking behaviors inspired by RFCs (TCP fallback, EDNS, retries, etc.). (Planned)
  • Can include opinionated helpers to accelerate scanner development.

Quick Start

Add this to your Cargo.toml:

[dependencies]
stalkermap = { version = "0.1.40", features = ["std"]}
stalkermap = { version = "0.1.40", features = ["tokio-dep"]}
stalkermap = { version = "0.1.40", default-features = false, features = ["agnostic"]}

Usage Examples

DNS Resolver Example (std)

use stalkermap::dns::resolver::{resolve_ipv4, resolve_mx};

let a_records = resolve_ipv4("example.com").unwrap();
let mx_records = resolve_mx("example.com").unwrap();

println!("A records: {:#?}", a_records);
println!("MX records: {:#?}", mx_records);

Basic Input & Range Validation

use stalkermap::utils::{Terminal, Sanitize, DesiredType};

// Get validated user input with range checking
let threads = Terminal::ask(
    "Enter scan threads (1-16):",
    &[Sanitize::IsBetween(1, 16)],
);
println!("Threads: {}", threads.answer);

URL Parsing and Validation

use stalkermap::utils::UrlParser;

// Parse and validate URLs
match UrlParser::new("https://example.com:8080/api") {
    Ok(url) => {
        println!("Scheme: {}", url.scheme);
        println!("Target: {}", url.target);
        println!("Port: {}", url.port);
        println!("Path: {}", url.subdirectory);
    }
    Err(e) => eprintln!("Invalid URL: {}", e),
}

Complex Input Validation

use stalkermap::utils::{Terminal, Sanitize, DesiredType};

// Multiple validation rules
let choice = Terminal::ask(
    "Choose scan type (quick/deep/custom):",
    &[
        Sanitize::IsType(DesiredType::String),
        Sanitize::MatchStrings(vec![
            "quick".to_string(),
            "deep".to_string(),
            "custom".to_string(),
        ]),
    ],
);

Complete Interactive URL Input Example

This example demonstrates the complete workflow of getting user input, validating it, and parsing URLs - perfect for network scanner applications:

use stalkermap::utils::{Terminal, Sanitize, DesiredType, UrlParser};

    // Get URL from user with validation
    let url: UrlParser = loop {
        let input = Terminal::ask(
            "Enter a URL (http:// or https://):",
            &[Sanitize::IsType(DesiredType::String)],
        );

        // Parse and validate the URL
        match UrlParser::new(&input.answer) {
            Ok(url) => break url,
            Err(e) => println!("{}", e)
        }
    };

    println!("{}", url);

“Agnostic” Only Feature DNS Compressor Example

Users can either build a DNS message manually using their own structures or use the DnsMessage struct provided by this library. Example with a raw buffer:

use std::collections::HashMap;
use stalkermap::dns::compressor::MessageCompressor;

let mut message = Vec::new();
let mut pointer_map = HashMap::new();

// Compress a domain name
MessageCompressor::compress("www.example.com", &mut message, &mut pointer_map).unwrap();

// Reusing the same domain (or suffix) inserts a pointer instead of repeating bytes
MessageCompressor::compress("mail.example.com", &mut message, &mut pointer_map).unwrap();

“Agnostic” Only Feature DNS Message Query Builder Example

use stalkermap::dns::resolver::agnostic::{DnsMessage, RecordType, OpCodeOptions};

// Build a query for example.com A record
let msg = DnsMessage::new_query("example.com", RecordType::A, OpCodeOptions::StandardQuery);

// Encode into raw bytes, ready to send via UDP/TCP
let bytes = msg.encode_query();

assert!(!bytes[12..].is_empty()); // includes header + question

Architecture

The library is designed with modularity and composability in mind:

• utils - Core utilities for input handling and URL parsing
• dns - DNS resolution and query utilities (planned)
• scanner - Port scanning and network discovery (planned)
• reporter - Report generation and export (planned)

Design Principles

• Type Safety - Leverages Rust’s type system for compile-time guarantees
• Error Handling - Comprehensive error types with descriptive messages
• Performance - Optimized for speed and memory efficiency
• Usability - Intuitive APIs with excellent documentation

Supported URL Formats

• HTTP/HTTPS schemes
• IPv4 and IPv6 addresses
• DNS hostnames
• Custom ports
• Paths and query strings

Error Handling

All operations return Result<T, E> types for safe error handling:

use stalkermap::utils::{UrlParser, UrlParserErrors};

match UrlParser::new("invalid-url") {
    Ok(url) => println!("Valid URL: {}", url),
    Err(UrlParserErrors::InvalidScheme) => eprintln!("Only HTTP/HTTPS supported"),
    Err(UrlParserErrors::InvalidTargetType) => eprintln!("Invalid hostname or IP"),
    Err(e) => eprintln!("Other error: {}", e),
}

Contributing

License

This project is licensed under the MIT License - see the LICENSE file for details.

Changelog

See CHANGELOG.md for a list of changes and version history.

Modules

dns

Stalkermap DNS Library

utils

StalkerMap Utilities

Macros

check_type

Macro helper that validates if an input string can be parsed into the given Rust type.
Expands into a Result<(), expr>.

subslice

Helper macro to safely slice a string with error handling.