zond-engine 0.5.0

A lightweight, fast, and highly concurrent networking backend for packet crafting, protocol fingerprinting, and host discovery.
Documentation 
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// Copyright (c) 2026 Erik Lening (hollowpointer) and Contributors
//
// This Source Code Form is subject to the terms of the Mozilla Public License, v. 2.0.
// If a copy of the MPL was not distributed with this file, You can obtain one at
// https://mozilla.org/MPL/2.0/.

//! # Parsing Utilities
//!
//! This module serves as the primary gateway for all parsing and resolution logic
//! within the library. It abstracts the complexities of format-specific grammars
//! into a clean, high-level API.
//!
//! Currently supported:
//! * **IP Resolution**: Translating strings and keywords into [`IpSet`] models.

pub mod ip;

pub use ip::{IS_LAN_SCAN, IpParseError, to_set as to_ipset};

use crate::core::models::port::PortSet;
use crate::core::models::target::{TargetMap, TargetSet};

/// Parses a list of target strings (e.g. `["1.1.1.1:80,443", "8.8.8.8"]`) into a `TargetMap`.
/// Combines per-target specified ports, or falls back to `global_ports`.
pub fn to_target_map(
    targets: &[String],
    global_ports: PortSet,
    resolver: Option<ip::ResolverFn>,
) -> Result<TargetMap, anyhow::Error> {
    let mut map = TargetMap::new();

    for target in targets {
        if let Some((ip_str, port_str)) = target.split_once(':') {
            let ip_set = to_ipset(&[ip_str], resolver)
                .map_err(|e| anyhow::anyhow!("Invalid IP in '{}': {}", ip_str, e))?;
            let port_set = PortSet::try_from(port_str)
                .map_err(|e| anyhow::anyhow!("Invalid Port in '{}': {}", port_str, e))?;
            map.add_unit(TargetSet::new(ip_set, port_set));
        } else {
            let ip_set = to_ipset(&[target.as_str()], resolver)
                .map_err(|e| anyhow::anyhow!("Invalid IP '{}': {}", target, e))?;
            map.add_unit(TargetSet::new(ip_set, global_ports.clone()));
        }
    }

    Ok(map)
}

// ╔════════════════════════════════════════════╗
// ║ ████████╗███████╗███████╗████████╗███████╗ ║
// ║ ╚══██╔══╝██╔════╝██╔════╝╚══██╔══╝██╔════╝ ║
// ║    ██║   █████╗  ███████╗   ██║   ███████╗ ║
// ║    ██║   ██╔══╝  ╚════██║   ██║   ╚════██║ ║
// ║    ██║   ███████╗███████║   ██║   ███████║ ║
// ║    ╚═╝   ╚══════╝╚══════╝   ╚═╝   ╚══════╝ ║
// ╚════════════════════════════════════════════╝

#[cfg(test)]
mod tests {
    use super::*;
    use std::net::IpAddr;

    #[test]
    fn facade_ip_resolution() {
        let inputs = vec!["127.0.0.1", "10.0.0.1-5"];

        let set = to_ipset(&inputs, None).expect("Facade should resolve IP targets");

        assert_eq!(set.len(), 6);
        assert!(set.contains(&"127.0.0.1".parse::<IpAddr>().unwrap()));
        assert!(set.contains(&"10.0.0.3".parse::<IpAddr>().unwrap()));
    }

    #[test]
    fn facade_empty_input() {
        let inputs: Vec<&str> = vec![];
        let result = to_ipset(&inputs, None);

        assert!(result.is_err());
        assert_eq!(result.unwrap_err(), IpParseError::EmptySet);
    }

    #[test]
    fn facade_comma_splitting() {
        let inputs = vec!["1.1.1.1, 2.2.2.2"];
        let set = to_ipset(&inputs, None).unwrap();

        assert_eq!(set.len(), 2);
    }
}