recon-cli 0.82.0

// Usage: recon --script ftp [URL]
//
// Anonymous FTP probe. Default: rebex.net (classic public FTP/FTPS
// demo server). Lists a directory when the URL ends with / or retrieves
// a file otherwise. Gracefully exits 2 when the host is unreachable.

let url = if args.len() > 1 { args[1] } else { "ftp://test.rebex.net/pub/example/" };

// Extract host[:port] from the URL using sub_string + index_of, since
// String::replace and split() in Rhai are mutating and can't be chained.
let host_port = url;
let i = host_port.index_of("://");
if i >= 0 { host_port = host_port.sub_string(i + 3); }
let at = host_port.index_of("@");
if at >= 0 { host_port = host_port.sub_string(at + 1); }
let slash = host_port.index_of("/");
if slash >= 0 { host_port = host_port.sub_string(0, slash); }
if host_port.index_of(":") < 0 { host_port += ":21"; }
// `tcp()` raises on connect failure / timeout, so a plain `if !t.ok`
// guard never fires — wrap in try/catch and treat any failure as
// "host unreachable".
let reachable = false;
try {
    let t = tcp(`tcp://${host_port}`, #{ timeout: 5 });
    reachable = t.ok;
} catch(e) { reachable = false; }
if !reachable {
    print(`${host_port} unreachable — skipping`);
    return 2;
}

// rebex.net requires demo/password credentials; anonymous works on most
// public mirrors. Override via the opts map as needed.
let r = ftp(url, #{ user: "demo", pass: "password" });
print(`${r.host}:${r.port}${ if r.tls { " (TLS)" } else { "" } }  user=${r.user}  pwd=${r.pwd}`);
if r.mode == "list" {
    print(`listing (${r.listing.len()} entries):`);
    for entry in r.listing { print(`  ${entry}`); }
} else {
    print(`retrieved ${r.bytes.len()} bytes`);
}
return 0;