forked from Deuxfleurs/garage
206 lines
5.6 KiB
Rust
206 lines
5.6 KiB
Rust
use std::borrow::Cow;
|
|
use std::net::SocketAddr;
|
|
use std::sync::Arc;
|
|
|
|
use futures::future::Future;
|
|
|
|
use hyper::header::HOST;
|
|
use hyper::server::conn::AddrStream;
|
|
use hyper::service::{make_service_fn, service_fn};
|
|
use hyper::{Body, Request, Response, Server};
|
|
|
|
use garage_model::garage::Garage;
|
|
use garage_util::error::Error;
|
|
|
|
pub async fn run_web_server(
|
|
garage: Arc<Garage>,
|
|
shutdown_signal: impl Future<Output = ()>,
|
|
) -> Result<(), Error> {
|
|
let addr = &garage.config.s3_web.bind_addr;
|
|
|
|
let service = make_service_fn(|conn: &AddrStream| {
|
|
let garage = garage.clone();
|
|
let client_addr = conn.remote_addr();
|
|
async move {
|
|
Ok::<_, Error>(service_fn(move |req: Request<Body>| {
|
|
let garage = garage.clone();
|
|
handler(garage, req, client_addr)
|
|
}))
|
|
}
|
|
});
|
|
|
|
let server = Server::bind(&addr).serve(service);
|
|
let graceful = server.with_graceful_shutdown(shutdown_signal);
|
|
info!("Web server listening on http://{}", addr);
|
|
|
|
graceful.await?;
|
|
Ok(())
|
|
}
|
|
|
|
async fn handler(
|
|
garage: Arc<Garage>,
|
|
req: Request<Body>,
|
|
addr: SocketAddr,
|
|
) -> Result<Response<Body>, Error> {
|
|
// Get http authority string (eg. [::1]:3902 or garage.tld:80)
|
|
let authority = req
|
|
.headers()
|
|
.get(HOST)
|
|
.ok_or(Error::BadRequest(format!("HOST header required")))?
|
|
.to_str()?;
|
|
|
|
// Get bucket
|
|
let host = authority_to_host(authority)?;
|
|
let root = &garage.config.s3_web.root_domain;
|
|
let bucket = host_to_bucket(&host, root);
|
|
|
|
// Get path
|
|
let path = req.uri().path().to_string();
|
|
let index = &garage.config.s3_web.index;
|
|
let key = path_to_key(&path, &index)?;
|
|
|
|
info!("Selected bucket: \"{}\", selected key: \"{}\"", bucket, key);
|
|
|
|
// Get bucket descriptor
|
|
let object = garage
|
|
.object_table
|
|
.get(&bucket.to_string(), &key.to_string())
|
|
.await?
|
|
.ok_or(Error::NotFound)?;
|
|
|
|
Ok(Response::new(Body::from("hello world\n")))
|
|
}
|
|
|
|
/// Extract host from the authority section given by the HTTP host header
|
|
///
|
|
/// The HTTP host contains both a host and a port.
|
|
/// Extracting the port is more complex than just finding the colon (:) symbol due to IPv6
|
|
/// We do not use the collect pattern as there is no way in std rust to collect over a stack allocated value
|
|
/// check here: https://docs.rs/collect_slice/1.2.0/collect_slice/
|
|
fn authority_to_host(authority: &str) -> Result<&str, Error> {
|
|
let mut iter = authority.chars().enumerate();
|
|
let (_, first_char) = iter
|
|
.next()
|
|
.ok_or(Error::BadRequest(format!("Authority is empty")))?;
|
|
|
|
let split = match first_char {
|
|
'[' => {
|
|
let mut iter = iter.skip_while(|(_, c)| c != &']');
|
|
iter.next().expect("Authority parsing logic error");
|
|
iter.next()
|
|
}
|
|
_ => iter.skip_while(|(_, c)| c != &':').next(),
|
|
};
|
|
|
|
match split {
|
|
Some((i, ':')) => Ok(&authority[..i]),
|
|
None => Ok(authority),
|
|
Some((_, _)) => Err(Error::BadRequest(format!(
|
|
"Authority {} has an illegal format",
|
|
authority
|
|
))),
|
|
}
|
|
}
|
|
|
|
/// Host to bucket
|
|
///
|
|
/// Convert a host, like "bucket.garage-site.tld" or "john.doe.com"
|
|
/// to the corresponding bucket, resp. "bucket" and "john.doe.com"
|
|
/// considering that ".garage-site.tld" is the "root domain".
|
|
/// This behavior has been chosen to follow AWS S3 semantic.
|
|
fn host_to_bucket<'a>(host: &'a str, root: &str) -> &'a str {
|
|
if root.len() >= host.len() || !host.ends_with(root) {
|
|
return host;
|
|
}
|
|
|
|
let len_diff = host.len() - root.len();
|
|
let missing_starting_dot = root.chars().next() != Some('.');
|
|
let cursor = if missing_starting_dot {
|
|
len_diff - 1
|
|
} else {
|
|
len_diff
|
|
};
|
|
&host[..cursor]
|
|
}
|
|
|
|
/// Path to key
|
|
///
|
|
/// Convert the provided path to the internal key
|
|
/// When a path ends with "/", we append the index name to match traditional web server behavior
|
|
/// which is also AWS S3 behavior.
|
|
fn path_to_key<'a>(path: &'a str, index: &str) -> Result<Cow<'a, str>, Error> {
|
|
let path_utf8 = percent_encoding::percent_decode_str(&path).decode_utf8()?;
|
|
match path_utf8.chars().last() {
|
|
None => Err(Error::BadRequest(format!(
|
|
"Path must have at least a character"
|
|
))),
|
|
Some('/') => {
|
|
let mut key = String::with_capacity(path_utf8.len() + index.len());
|
|
key.push_str(&path_utf8);
|
|
key.push_str(index);
|
|
Ok(key.into())
|
|
}
|
|
Some(_) => Ok(path_utf8.into()),
|
|
}
|
|
}
|
|
|
|
#[cfg(test)]
|
|
mod tests {
|
|
use super::*;
|
|
|
|
#[test]
|
|
fn authority_to_host_with_port() -> Result<(), Error> {
|
|
let domain = authority_to_host("[::1]:3902")?;
|
|
assert_eq!(domain, "[::1]");
|
|
let domain2 = authority_to_host("garage.tld:65200")?;
|
|
assert_eq!(domain2, "garage.tld");
|
|
let domain3 = authority_to_host("127.0.0.1:80")?;
|
|
assert_eq!(domain3, "127.0.0.1");
|
|
Ok(())
|
|
}
|
|
|
|
#[test]
|
|
fn authority_to_host_without_port() -> Result<(), Error> {
|
|
let domain = authority_to_host("[::1]")?;
|
|
assert_eq!(domain, "[::1]");
|
|
let domain2 = authority_to_host("garage.tld")?;
|
|
assert_eq!(domain2, "garage.tld");
|
|
let domain3 = authority_to_host("127.0.0.1")?;
|
|
assert_eq!(domain3, "127.0.0.1");
|
|
Ok(())
|
|
}
|
|
|
|
#[test]
|
|
fn host_to_bucket_test() {
|
|
assert_eq!(
|
|
host_to_bucket("john.doe.garage.tld", ".garage.tld"),
|
|
"john.doe"
|
|
);
|
|
|
|
assert_eq!(
|
|
host_to_bucket("john.doe.garage.tld", "garage.tld"),
|
|
"john.doe"
|
|
);
|
|
|
|
assert_eq!(host_to_bucket("john.doe.com", "garage.tld"), "john.doe.com");
|
|
|
|
assert_eq!(
|
|
host_to_bucket("john.doe.com", ".garage.tld"),
|
|
"john.doe.com"
|
|
);
|
|
|
|
assert_eq!(host_to_bucket("garage.tld", "garage.tld"), "garage.tld");
|
|
|
|
assert_eq!(host_to_bucket("garage.tld", ".garage.tld"), "garage.tld");
|
|
}
|
|
|
|
#[test]
|
|
fn path_to_key_test() -> Result<(), Error> {
|
|
assert_eq!(path_to_key("/file%20.jpg", "index.html")?, "/file .jpg");
|
|
assert_eq!(path_to_key("/%20t/", "index.html")?, "/ t/index.html");
|
|
assert_eq!(path_to_key("/", "index.html")?, "/index.html");
|
|
assert!(path_to_key("", "index.html").is_err());
|
|
Ok(())
|
|
}
|
|
}
|