Make ports configurable

Cargo.lock

@@ -393,6 +393,46 @@ version = "1.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "baf1de4339761588bc0619e3cbc0120ee582ebb74b53b4efbf79117bd2da40fd"
 
+[[package]]
+name = "clap"
+version = "4.5.16"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ed6719fffa43d0d87e5fd8caeab59be1554fb028cd30edc88fc4369b17971019"
+dependencies = [
+ "clap_builder",
+ "clap_derive",
+]
+
+[[package]]
+name = "clap_builder"
+version = "4.5.15"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "216aec2b177652e3846684cbfe25c9964d18ec45234f0f5da5157b207ed1aab6"
+dependencies = [
+ "anstream",
+ "anstyle",
+ "clap_lex",
+ "strsim",
+]
+
+[[package]]
+name = "clap_derive"
+version = "4.5.13"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "501d359d5f3dcaf6ecdeee48833ae73ec6e42723a1e52419c79abf9507eec0a0"
+dependencies = [
+ "heck",
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
+[[package]]
+name = "clap_lex"
+version = "0.7.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1462739cb27611015575c0c11df5df7601141071f07518d56fcc1be504cbec97"
+
 [[package]]
 name = "colorchoice"
 version = "1.0.2"
@@ -621,6 +661,12 @@ version = "0.14.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "e5274423e17b7c9fc20b6e7e208532f9b19825d82dfd615708b70edd83df41f1"
 
+[[package]]
+name = "heck"
+version = "0.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2304e00983f87ffb38b55b444b5e3b60a884b5d30c0fca7d82fe33449bbe55ea"
+
 [[package]]
 name = "hermit-abi"
 version = "0.3.9"
@@ -632,6 +678,7 @@ name = "hidden_server"
 version = "0.1.0"
 dependencies = [
  "actix-web",
+ "clap",
  "env_logger",
  "log",
  "rand 0.9.0-alpha.2",
@@ -1141,6 +1188,12 @@ dependencies = [
  "windows-sys",
 ]
 
+[[package]]
+name = "strsim"
+version = "0.11.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7da8b5736845d9f2fcb837ea5d9e2628564b3b043a70948a3f0b778838c5fb4f"
+
 [[package]]
 name = "syn"
 version = "2.0.75"

Cargo.toml

@@ -7,4 +7,5 @@ edition = "2021"
 log = "0.4.22"
 env_logger = "0.11.5"
 actix-web = "4"
-rand = "0.9.0-alpha.2"
+rand = "0.9.0-alpha.2"
+clap = { version = "4.5.16", features = ["derive"] }

src/main.rs

@@ -1,5 +1,6 @@
 use actix_web::middleware::Logger;
 use actix_web::{web, App, HttpResponse, HttpServer};
+use clap::Parser;
 use log::LevelFilter;
 use rand::Rng;
 
@@ -10,6 +11,18 @@ async fn home() -> HttpResponse {
         .body(include_str!("../assets/home.html"))
 }
 
+/// Server with hidden exposed port
+#[derive(Parser, Debug)]
+#[command(version, about, long_about = None)]
+struct Args {
+    /// Minimal port this server will listen to
+    #[arg(short, long, default_value_t = 80)]
+    min_port: u16,
+    /// Maximal port this server will listen to
+    #[arg(short, long, default_value_t = 1000)]
+    max_port: u16,
+}
+
 #[actix_web::main]
 async fn main() -> std::io::Result<()> {
     env_logger::Builder::new()
@@ -17,10 +30,17 @@ async fn main() -> std::io::Result<()> {
         .filter(None, LevelFilter::Info)
         .init();
 
+    let args: Args = Args::parse();
+
+    assert!(
+        args.max_port > args.min_port,
+        "Max port shall be greater than min port!"
+    );
+
     log::info!("Choosing a random port to start...");
 
     let mut rng = rand::thread_rng();
-    let port: u16 = 80 + rng.random::<u16>() % 10000;
+    let port: u16 = args.min_port + rng.random::<u16>() % (args.max_port - args.min_port);
 
     HttpServer::new(|| {
         App::new()