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use std::time::Duration;
use clap::Parser;
use owo_colors::OwoColorize;
use rayon::prelude::*;
mod cli;
mod output;
mod scanner;
mod utils;
use cli::Args;
use output::{OutputFormat, ScanRecord, print_json, print_jsonl};
use scanner::{address, port};
use utils::{init_scan_pool, parse_ip, parse_ports, parse_subnet, progress_bar};
fn main() {
let args = Args::parse();
// Size the global rayon pool for I/O-bound scanning before any scan runs.
init_scan_pool(args.concurrency());
let format = args.output_format();
match args {
Args::PortScan {
host,
range,
specific,
timeout,
..
} => {
let timeout = Some(Duration::from_millis(timeout));
// Make sure the host resolves before we try to scan it.
if !port::is_resolvable(&host) {
eprintln!("{}", format!("Could not resolve host: {}", host).red());
return;
}
let ports: Vec<u16> = if let Some(range) = range {
// clap enforces exactly two values via `num_args = 2`.
let start = range[0];
let end = range[1];
if start > end {
eprintln!("{}", "Start port must be <= end port".yellow());
return;
}
(start..=end).collect()
} else if let Some(spec) = specific {
match parse_ports(&spec) {
Ok(ports) => ports,
Err(e) => {
eprintln!("{}", e.red());
return;
}
}
} else {
eprintln!("{}", "Please specify either -r or -s".yellow());
return;
};
// Resolve the host to an IP once, so the parallel scan below does
// not issue a DNS lookup for every single port.
let scan_host = match port::resolve_host(&host) {
Some(ip) => ip.to_string(),
None => {
eprintln!("{}", format!("Could not resolve host: {}", host).red());
return;
}
};
let total_ports = ports.len();
if format == OutputFormat::Text {
println!(
"\n##### {} scanning ports on host: {} #####\n",
"Started".bright_blue(),
host.bright_green()
);
}
let pb = progress_bar(total_ports as u64, "ports scanned");
let mut opened: Vec<port::PortHit> = ports
.into_par_iter()
.filter_map(|port| {
let open_port = port::scan_port(scan_host.clone(), port, timeout);
pb.inc(1);
open_port
})
.collect();
pb.finish_with_message("Scan completed");
opened.sort_by_key(|hit| hit.port);
match format {
OutputFormat::Text => {
if !opened.is_empty() {
println!(
"\n-- {} for {} --\n",
"Opened ports".green(),
host.bright_yellow()
);
for hit in &opened {
println!(
"{}:{}",
host.bright_cyan(),
hit.port.to_string().bright_green()
);
}
} else {
println!("\n{}", "No open ports found 😕".yellow());
}
println!("\n##### {} #####\n", "Game Over".bright_red());
}
OutputFormat::Json | OutputFormat::Jsonl => {
let records: Vec<ScanRecord> = opened
.iter()
.map(|hit| ScanRecord {
ip: scan_host.clone(),
port: Some(hit.port),
proto: "tcp",
latency_ms: hit.latency.as_millis(),
status: "open",
})
.collect();
if format == OutputFormat::Json {
print_json(&records);
} else {
print_jsonl(&records);
}
}
}
}
Args::AddressScan {
subnet,
target,
range,
timeout,
..
} => {
let timeout = Some(Duration::from_millis(timeout));
let available: Vec<address::HostHit> = if let Some(subnet_str) = subnet {
match parse_subnet(&subnet_str) {
Ok(network) => {
if format == OutputFormat::Text {
println!(
"\n##### {} scanning subnet: {} #####\n",
"Started".bright_blue(),
subnet_str.as_str().bright_green()
);
}
address::scan_subnet(network, timeout)
}
Err(e) => {
eprintln!("{}", e.red());
return;
}
}
} else if let Some(target_str) = target {
match parse_ip(&target_str) {
Ok(ip) => {
if format == OutputFormat::Text {
println!(
"\n##### {} scanning target: {} #####\n",
"Started".bright_blue(),
target_str.as_str().bright_green()
);
}
address::scan_address(ip, timeout).into_iter().collect()
}
Err(e) => {
eprintln!("{}", e.red());
return;
}
}
} else if let Some(range_vec) = range {
// clap enforces exactly two values via `num_args = 2`.
match (parse_ip(&range_vec[0]), parse_ip(&range_vec[1])) {
(Ok(start), Ok(end)) => {
if format == OutputFormat::Text {
println!(
"\n##### {} scanning range: {} - {} #####\n",
"Started".bright_blue(),
range_vec[0].as_str().bright_green(),
range_vec[1].as_str().bright_green()
);
}
address::scan_ip_range(start, end, timeout)
}
(Err(e), _) | (_, Err(e)) => {
eprintln!("{}", e.red());
return;
}
}
} else {
eprintln!("{}", "Please specify either -s, -t, or -r".yellow());
return;
};
match format {
OutputFormat::Text => {
if !available.is_empty() {
println!("\n-- {} --\n", "Available hosts".green());
for hit in &available {
println!("{}", hit.ip.to_string().bright_green());
}
} else {
println!("\n{}", "No available hosts found 😕".yellow());
}
println!("\n##### {} #####\n", "Game Over".bright_red());
}
OutputFormat::Json | OutputFormat::Jsonl => {
let records: Vec<ScanRecord> = available
.iter()
.map(|hit| ScanRecord {
ip: hit.ip.to_string(),
port: None,
proto: "tcp",
latency_ms: hit.latency.as_millis(),
status: "up",
})
.collect();
if format == OutputFormat::Json {
print_json(&records);
} else {
print_jsonl(&records);
}
}
}
}
}
}