forked from Deuxfleurs/garage
133 lines
3.1 KiB
Rust
133 lines
3.1 KiB
Rust
use std::sync::Arc;
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use std::time::{Duration, UNIX_EPOCH};
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use futures::stream::*;
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use hyper::body::Bytes;
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use hyper::{Response, StatusCode};
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use garage_util::error::Error;
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use garage_table::EmptyKey;
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use garage_core::garage::Garage;
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use garage_core::object_table::*;
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use crate::http_util::*;
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fn object_headers(version: &ObjectVersion) -> http::response::Builder {
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let date = UNIX_EPOCH + Duration::from_millis(version.timestamp);
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let date_str = httpdate::fmt_http_date(date);
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Response::builder()
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.header("Content-Type", version.mime_type.to_string())
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.header("Content-Length", format!("{}", version.size))
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.header("Last-Modified", date_str)
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}
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pub async fn handle_head(
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garage: Arc<Garage>,
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bucket: &str,
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key: &str,
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) -> Result<Response<BodyType>, Error> {
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let object = match garage
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.object_table
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.get(&bucket.to_string(), &key.to_string())
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.await?
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{
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None => return Err(Error::NotFound),
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Some(o) => o,
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};
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let version = match object
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.versions()
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.iter()
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.rev()
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.filter(|v| v.is_data())
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.next()
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{
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Some(v) => v,
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None => return Err(Error::NotFound),
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};
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let body: BodyType = Box::new(BytesBody::from(vec![]));
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let response = object_headers(&version)
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.status(StatusCode::OK)
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.body(body)
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.unwrap();
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Ok(response)
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}
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pub async fn handle_get(
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garage: Arc<Garage>,
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bucket: &str,
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key: &str,
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) -> Result<Response<BodyType>, Error> {
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let object = match garage
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.object_table
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.get(&bucket.to_string(), &key.to_string())
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.await?
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{
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None => return Err(Error::NotFound),
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Some(o) => o,
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};
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let last_v = match object
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.versions()
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.iter()
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.rev()
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.filter(|v| v.is_complete())
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.next()
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{
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Some(v) => v,
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None => return Err(Error::NotFound),
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};
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let resp_builder = object_headers(&last_v).status(StatusCode::OK);
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match &last_v.data {
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ObjectVersionData::Uploading => Err(Error::Message(format!(
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"Version is_complete() but data is stil Uploading (internal error)"
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))),
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ObjectVersionData::DeleteMarker => Err(Error::NotFound),
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ObjectVersionData::Inline(bytes) => {
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let body: BodyType = Box::new(BytesBody::from(bytes.to_vec()));
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Ok(resp_builder.body(body)?)
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}
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ObjectVersionData::FirstBlock(first_block_hash) => {
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let read_first_block = garage.block_manager.rpc_get_block(&first_block_hash);
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let get_next_blocks = garage.version_table.get(&last_v.uuid, &EmptyKey);
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let (first_block, version) = futures::try_join!(read_first_block, get_next_blocks)?;
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let version = match version {
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Some(v) => v,
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None => return Err(Error::NotFound),
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};
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let mut blocks = version
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.blocks()
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.iter()
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.map(|vb| (vb.hash, None))
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.collect::<Vec<_>>();
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blocks[0].1 = Some(first_block);
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let body_stream = futures::stream::iter(blocks)
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.map(move |(hash, data_opt)| {
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let garage = garage.clone();
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async move {
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if let Some(data) = data_opt {
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Ok(Bytes::from(data))
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} else {
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garage
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.block_manager
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.rpc_get_block(&hash)
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.await
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.map(Bytes::from)
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}
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}
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})
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.buffered(2);
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let body: BodyType = Box::new(StreamBody::new(Box::pin(body_stream)));
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Ok(resp_builder.body(body)?)
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}
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}
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}
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