Rust raw https request example

Cargo.toml

[package]
name = "bassietest"
version = "0.1.0"
edition = "2021"

[dependencies]
anyhow = "1.0"
rustls = { version = "0.23", default-features = false, features = ["std", "tls12", "ring"] }
webpki-roots = "0.26"

main.rs

use std::io::{Read, Write};
use std::net::TcpStream;
use std::sync::Arc;

fn main() -> anyhow::Result<()> {
    let host = "example.com";
    let path = "/";

    let mut socket = TcpStream::connect(format!("{}:443", host))?;

    let root_store =
        rustls::RootCertStore::from_iter(webpki_roots::TLS_SERVER_ROOTS.iter().cloned());
    let config = rustls::ClientConfig::builder()
        .with_root_certificates(root_store)
        .with_no_client_auth();

    let mut client = rustls::ClientConnection::new(Arc::new(config), host.try_into()?)?;
    let mut stream = rustls::Stream::new(&mut client, &mut socket);

    _ = stream.write(
        format!(
            "GET {} HTTP/1.1\r\nHost: {}\r\nConnection: close\r\n\r\n",
            path, host
        )
        .as_bytes(),
    )?;

    let mut response = Vec::new();
    stream.read_to_end(&mut response)?;
    std::io::stdout().write_all(&response)?;
    Ok(())
}