57 lines
1.6 KiB
Rust
57 lines
1.6 KiB
Rust
use std::{ fmt::Display, io::{Read, Write}, net::TcpListener };
|
|
use anyhow::Result;
|
|
use thiserror::Error;
|
|
|
|
#[derive(Clone, Debug, Error)]
|
|
enum E {
|
|
#[error("Invalid request data found during parsing")]
|
|
InvalidRequest,
|
|
}
|
|
|
|
fn main() -> Result<()> {
|
|
let listener = TcpListener::bind("127.0.0.1:4221").unwrap();
|
|
|
|
for stream in listener.incoming() {
|
|
match stream {
|
|
Ok(mut stream) => {
|
|
let mut buf = String::new();
|
|
let _read = stream.read_to_string(&mut buf);
|
|
|
|
let mut data = buf.split("\r\n");
|
|
|
|
let _start @ (_method, path, _ver) = {
|
|
let start_line = data.next().ok_or(E::InvalidRequest)?; // should be 500;
|
|
let mut parts = start_line.split_whitespace();
|
|
let method = parts.next().ok_or(E::InvalidRequest)?;
|
|
let path = parts.next().ok_or(E::InvalidRequest)?;
|
|
let ver = parts.next().ok_or(E::InvalidRequest)?;
|
|
|
|
(method, path, ver)
|
|
};
|
|
|
|
let code = match path {
|
|
"/" => "200 OK",
|
|
_ => "404 Not Found",
|
|
};
|
|
|
|
println!("accepted new connection");
|
|
let resp = create_response_simple(code);
|
|
|
|
let _ = stream.write(&resp);
|
|
let _ = stream.flush();
|
|
|
|
}
|
|
Err(e) => {
|
|
println!("error: {}", e);
|
|
}
|
|
}
|
|
}
|
|
|
|
Ok(())
|
|
}
|
|
|
|
|
|
fn create_response_simple <T> (code: T) -> Vec<u8> where T: Display {
|
|
format!("HTTP/1.1 {code}\r\n\r\n").into()
|
|
}
|