2020-04-06 17:55:39 +00:00
|
|
|
use std::sync::Arc;
|
2020-04-07 22:39:07 +00:00
|
|
|
use std::net::SocketAddr;
|
|
|
|
|
use std::collections::VecDeque;
|
2020-04-06 17:55:39 +00:00
|
|
|
|
2020-04-07 22:39:07 +00:00
|
|
|
use futures::stream::StreamExt;
|
2020-04-05 21:33:42 +00:00
|
|
|
use hyper::service::{make_service_fn, service_fn};
|
2020-04-07 22:39:07 +00:00
|
|
|
use hyper::server::conn::AddrStream;
|
2020-04-05 21:33:42 +00:00
|
|
|
use hyper::{Body, Method, Request, Response, Server, StatusCode};
|
|
|
|
|
use futures::future::Future;
|
|
|
|
|
|
|
|
|
|
use crate::error::Error;
|
2020-04-07 22:39:07 +00:00
|
|
|
use crate::data::*;
|
|
|
|
|
use crate::proto::*;
|
|
|
|
|
use crate::rpc_client::*;
|
2020-04-08 20:00:41 +00:00
|
|
|
use crate::server::Garage;
|
2020-04-05 21:33:42 +00:00
|
|
|
|
2020-04-08 20:00:41 +00:00
|
|
|
pub async fn run_api_server(garage: Arc<Garage>, shutdown_signal: impl Future<Output=()>) -> Result<(), hyper::Error> {
|
|
|
|
|
let addr = ([0, 0, 0, 0], garage.system.config.api_port).into();
|
2020-04-05 21:33:42 +00:00
|
|
|
|
2020-04-07 22:39:07 +00:00
|
|
|
let service = make_service_fn(|conn: &AddrStream| {
|
2020-04-08 20:00:41 +00:00
|
|
|
let garage = garage.clone();
|
2020-04-07 22:39:07 +00:00
|
|
|
let client_addr = conn.remote_addr();
|
2020-04-06 17:55:39 +00:00
|
|
|
async move {
|
|
|
|
|
Ok::<_, Error>(service_fn(move |req: Request<Body>| {
|
2020-04-08 20:00:41 +00:00
|
|
|
let garage = garage.clone();
|
|
|
|
|
handler(garage, req, client_addr)
|
2020-04-06 17:55:39 +00:00
|
|
|
}))
|
|
|
|
|
}
|
|
|
|
|
});
|
2020-04-05 21:33:42 +00:00
|
|
|
|
|
|
|
|
let server = Server::bind(&addr).serve(service);
|
|
|
|
|
|
|
|
|
|
let graceful = server.with_graceful_shutdown(shutdown_signal);
|
2020-04-06 17:55:39 +00:00
|
|
|
println!("API server listening on http://{}", addr);
|
2020-04-05 21:33:42 +00:00
|
|
|
|
|
|
|
|
graceful.await
|
|
|
|
|
}
|
2020-04-07 22:39:07 +00:00
|
|
|
|
2020-04-08 20:00:41 +00:00
|
|
|
async fn handler(garage: Arc<Garage>, req: Request<Body>, addr: SocketAddr) -> Result<Response<Body>, Error> {
|
|
|
|
|
match handler_inner(garage, req, addr).await {
|
2020-04-07 22:39:07 +00:00
|
|
|
Ok(x) => Ok(x),
|
|
|
|
|
Err(e) => {
|
2020-04-09 15:32:28 +00:00
|
|
|
let mut http_error = Response::new(Body::from(format!("{}\n", e)));
|
|
|
|
|
*http_error.status_mut() = e.http_status_code();
|
|
|
|
|
Ok(http_error)
|
2020-04-07 22:39:07 +00:00
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
2020-04-08 20:00:41 +00:00
|
|
|
async fn handler_inner(garage: Arc<Garage>, req: Request<Body>, addr: SocketAddr) -> Result<Response<Body>, Error> {
|
2020-04-07 22:39:07 +00:00
|
|
|
eprintln!("{} {} {}", addr, req.method(), req.uri());
|
|
|
|
|
|
|
|
|
|
let bucket = req.headers()
|
|
|
|
|
.get(hyper::header::HOST)
|
|
|
|
|
.map(|x| x.to_str().map_err(Error::from))
|
|
|
|
|
.unwrap_or(Err(Error::BadRequest(format!("Host: header missing"))))?
|
|
|
|
|
.to_lowercase();
|
|
|
|
|
let key = req.uri().path().to_string();
|
|
|
|
|
|
|
|
|
|
match req.method() {
|
|
|
|
|
&Method::GET => {
|
2020-04-09 15:32:28 +00:00
|
|
|
Ok(handle_get(garage, &bucket, &key).await?)
|
2020-04-07 22:39:07 +00:00
|
|
|
}
|
|
|
|
|
&Method::PUT => {
|
|
|
|
|
let mime_type = req.headers()
|
|
|
|
|
.get(hyper::header::CONTENT_TYPE)
|
|
|
|
|
.map(|x| x.to_str())
|
|
|
|
|
.unwrap_or(Ok("blob"))?
|
|
|
|
|
.to_string();
|
2020-04-08 20:00:41 +00:00
|
|
|
let version_uuid = handle_put(garage, &mime_type, &bucket, &key, req.into_body()).await?;
|
2020-04-07 22:39:07 +00:00
|
|
|
Ok(Response::new(Body::from(
|
|
|
|
|
format!("Version UUID: {:?}", version_uuid),
|
|
|
|
|
)))
|
|
|
|
|
}
|
|
|
|
|
_ => Err(Error::BadRequest(format!("Invalid method"))),
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
2020-04-08 20:00:41 +00:00
|
|
|
async fn handle_put(garage: Arc<Garage>,
|
2020-04-07 22:39:07 +00:00
|
|
|
mime_type: &str,
|
|
|
|
|
bucket: &str, key: &str, body: Body)
|
|
|
|
|
-> Result<UUID, Error>
|
|
|
|
|
{
|
|
|
|
|
let version_uuid = gen_uuid();
|
|
|
|
|
|
2020-04-08 20:00:41 +00:00
|
|
|
let mut chunker = BodyChunker::new(body, garage.system.config.block_size);
|
2020-04-07 22:39:07 +00:00
|
|
|
let first_block = match chunker.next().await? {
|
|
|
|
|
Some(x) => x,
|
|
|
|
|
None => return Err(Error::BadRequest(format!("Empty body"))),
|
|
|
|
|
};
|
|
|
|
|
|
2020-04-09 15:32:28 +00:00
|
|
|
let mut object = Object {
|
2020-04-09 14:16:27 +00:00
|
|
|
bucket: bucket.into(),
|
|
|
|
|
key: key.into(),
|
2020-04-09 15:32:28 +00:00
|
|
|
versions: Vec::new(),
|
|
|
|
|
};
|
|
|
|
|
object.versions.push(Box::new(Version{
|
2020-04-07 22:39:07 +00:00
|
|
|
uuid: version_uuid.clone(),
|
2020-04-09 15:32:28 +00:00
|
|
|
timestamp: now_msec(),
|
2020-04-07 22:39:07 +00:00
|
|
|
mime_type: mime_type.to_string(),
|
|
|
|
|
size: first_block.len() as u64,
|
|
|
|
|
is_complete: false,
|
|
|
|
|
data: VersionData::DeleteMarker,
|
2020-04-09 15:32:28 +00:00
|
|
|
}));
|
2020-04-07 22:39:07 +00:00
|
|
|
|
|
|
|
|
if first_block.len() < INLINE_THRESHOLD {
|
2020-04-09 15:32:28 +00:00
|
|
|
object.versions[0].data = VersionData::Inline(first_block);
|
|
|
|
|
object.versions[0].is_complete = true;
|
|
|
|
|
garage.object_table.insert(&object).await?;
|
2020-04-07 22:39:07 +00:00
|
|
|
return Ok(version_uuid)
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
let first_block_hash = hash(&first_block[..]);
|
2020-04-09 15:32:28 +00:00
|
|
|
object.versions[0].data = VersionData::FirstBlock(first_block_hash);
|
|
|
|
|
garage.object_table.insert(&object).await?;
|
2020-04-07 22:39:07 +00:00
|
|
|
|
|
|
|
|
let block_meta = BlockMeta{
|
|
|
|
|
version_uuid: version_uuid.clone(),
|
|
|
|
|
offset: 0,
|
|
|
|
|
hash: hash(&first_block[..]),
|
|
|
|
|
};
|
|
|
|
|
let mut next_offset = first_block.len();
|
2020-04-08 20:00:41 +00:00
|
|
|
let mut put_curr_block = put_block(garage.clone(), block_meta, first_block);
|
2020-04-07 22:39:07 +00:00
|
|
|
loop {
|
|
|
|
|
let (_, next_block) = futures::try_join!(put_curr_block, chunker.next())?;
|
|
|
|
|
if let Some(block) = next_block {
|
|
|
|
|
let block_meta = BlockMeta{
|
|
|
|
|
version_uuid: version_uuid.clone(),
|
|
|
|
|
offset: next_offset as u64,
|
|
|
|
|
hash: hash(&block[..]),
|
|
|
|
|
};
|
|
|
|
|
next_offset += block.len();
|
2020-04-08 20:00:41 +00:00
|
|
|
put_curr_block = put_block(garage.clone(), block_meta, block);
|
2020-04-07 22:39:07 +00:00
|
|
|
} else {
|
|
|
|
|
break;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
// TODO: if at any step we have an error, we should undo everything we did
|
|
|
|
|
|
2020-04-09 15:32:28 +00:00
|
|
|
object.versions[0].is_complete = true;
|
|
|
|
|
object.versions[0].size = next_offset as u64;
|
|
|
|
|
garage.object_table.insert(&object).await?;
|
2020-04-07 22:39:07 +00:00
|
|
|
Ok(version_uuid)
|
|
|
|
|
}
|
|
|
|
|
|
2020-04-08 20:00:41 +00:00
|
|
|
async fn put_block(garage: Arc<Garage>, meta: BlockMeta, data: Vec<u8>) -> Result<(), Error> {
|
|
|
|
|
let who = garage.system.members.read().await
|
|
|
|
|
.walk_ring(&meta.hash, garage.system.config.meta_replication_factor);
|
|
|
|
|
rpc_try_call_many(garage.system.clone(),
|
2020-04-07 22:39:07 +00:00
|
|
|
&who[..],
|
|
|
|
|
&Message::PutBlock(PutBlockMessage{
|
|
|
|
|
meta,
|
|
|
|
|
data,
|
|
|
|
|
}),
|
2020-04-08 20:00:41 +00:00
|
|
|
(garage.system.config.meta_replication_factor+1)/2,
|
2020-04-07 22:39:07 +00:00
|
|
|
DEFAULT_TIMEOUT).await?;
|
|
|
|
|
Ok(())
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
struct BodyChunker {
|
|
|
|
|
body: Body,
|
|
|
|
|
block_size: usize,
|
|
|
|
|
buf: VecDeque<u8>,
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
impl BodyChunker {
|
|
|
|
|
fn new(body: Body, block_size: usize) -> Self {
|
|
|
|
|
Self{
|
|
|
|
|
body,
|
|
|
|
|
block_size,
|
|
|
|
|
buf: VecDeque::new(),
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
async fn next(&mut self) -> Result<Option<Vec<u8>>, Error> {
|
|
|
|
|
while self.buf.len() < self.block_size {
|
|
|
|
|
if let Some(block) = self.body.next().await {
|
|
|
|
|
let bytes = block?;
|
|
|
|
|
self.buf.extend(&bytes[..]);
|
|
|
|
|
} else {
|
|
|
|
|
break;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
if self.buf.len() == 0 {
|
|
|
|
|
Ok(None)
|
|
|
|
|
} else if self.buf.len() <= self.block_size {
|
|
|
|
|
let block = self.buf.drain(..)
|
|
|
|
|
.collect::<Vec<u8>>();
|
|
|
|
|
Ok(Some(block))
|
|
|
|
|
} else {
|
|
|
|
|
let block = self.buf.drain(..self.block_size)
|
|
|
|
|
.collect::<Vec<u8>>();
|
|
|
|
|
Ok(Some(block))
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
2020-04-09 15:32:28 +00:00
|
|
|
|
|
|
|
|
async fn handle_get(garage: Arc<Garage>, bucket: &str, key: &str) -> Result<Response<Body>, Error> {
|
|
|
|
|
let mut object = match garage.object_table.get(&bucket.to_string(), &key.to_string()).await? {
|
|
|
|
|
None => return Err(Error::NotFound),
|
|
|
|
|
Some(o) => o
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
let last_v = match object.versions.drain(..)
|
|
|
|
|
.rev().filter(|v| v.is_complete)
|
|
|
|
|
.next() {
|
|
|
|
|
Some(v) => v,
|
|
|
|
|
None => return Err(Error::NotFound),
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
let resp_builder = Response::builder()
|
|
|
|
|
.header("Content-Type", last_v.mime_type)
|
|
|
|
|
.status(StatusCode::OK);
|
|
|
|
|
|
|
|
|
|
match last_v.data {
|
|
|
|
|
VersionData::DeleteMarker => Err(Error::NotFound),
|
|
|
|
|
VersionData::Inline(bytes) => {
|
|
|
|
|
Ok(resp_builder.body(bytes.into())?)
|
|
|
|
|
}
|
|
|
|
|
VersionData::FirstBlock(hash) => {
|
|
|
|
|
// TODO
|
|
|
|
|
unimplemented!()
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
