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use std::fs::File;
use std::io::{ErrorKind, Read};
use std::path::PathBuf;
use hyper::{Body, Request, Response, StatusCode};
use super::{async_trait, HttpHandler};
#[derive(Clone, Debug)]
pub struct Params {
root: PathBuf,
}
impl Params {
pub fn new(root: PathBuf) -> Self {
let root = root.canonicalize().unwrap();
Self { root }
}
}
#[async_trait]
impl HttpHandler for Params {
async fn handle(&self, request: Request<Body>) -> Response<Body> {
let Params { root } = self;
eprintln!("handling request {:?}", request);
let request_path = request.uri().path();
let request_path = request_path.trim_start_matches("/");
let target = root.join(request_path);
let target = if target.is_dir() {
target.join("index.html")
} else {
target
};
eprintln!("target is {}", target.display());
let response = if target.ancestors().all(|ancestor| ancestor != root) {
// oops! all directory traversal
Response::builder()
.status(StatusCode::BAD_REQUEST)
.body(Body::empty())
} else {
let file = File::open(target);
match file {
Ok(mut file) => {
let mut result = Vec::new();
file.read_to_end(&mut result).unwrap();
Response::builder().body(Body::from(result))
}
Err(err) => {
let status_code = match err.kind() {
ErrorKind::NotFound => StatusCode::NOT_FOUND,
_ => StatusCode::BAD_REQUEST,
};
Response::builder()
.status(status_code)
.body(Body::from(status_code.canonical_reason().unwrap_or("")))
}
}
};
response.unwrap()
}
}
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