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Merge pull request 'Content-range fix' (#24) from bug/content-range into master

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Reviewed-on: Deuxfleurs/garage#24
This commit is contained in:
Alex 2020-12-05 19:21:32 +01:00
commit dfbc280c37
1 changed files with 34 additions and 17 deletions
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51
src/api/s3_get.rs
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@ -24,7 +24,6 @@ fn object_headers(
"Content-Type",
version_meta.headers.content_type.to_string(),
)
.header("Content-Length", format!("{}", version_meta.size))
.header("ETag", version_meta.etag.to_string())
.header("Last-Modified", date_str)
.header("Accept-Ranges", format!("bytes"));
@ -63,6 +62,7 @@ pub async fn handle_head(
let body: Body = Body::from(vec![]);
let response = object_headers(&version, version_meta)
.header("Content-Length", format!("{}", version_meta.size))
.status(StatusCode::OK)
.body(body)
.unwrap();
@ -123,7 +123,9 @@ pub async fn handle_get(
.await;
}
let resp_builder = object_headers(&last_v, last_v_meta).status(StatusCode::OK);
let resp_builder = object_headers(&last_v, last_v_meta)
.header("Content-Length", format!("{}", last_v_meta.size))
.status(StatusCode::OK);
match &last_v_data {
ObjectVersionData::DeleteMarker => unreachable!(),
@ -161,7 +163,7 @@ pub async fn handle_get(
}
})
.buffered(2);
//let body: Body = Box::new(StreamBody::new(Box::pin(body_stream)));
let body = hyper::body::Body::wrap_stream(body_stream);
Ok(resp_builder.body(body)?)
}
@ -181,9 +183,10 @@ pub async fn handle_get_range(
}
let resp_builder = object_headers(version, version_meta)
.header("Content-Length", format!("{}", end - begin))
.header(
"Content-Range",
format!("bytes {}-{}/{}", begin, end, version_meta.size),
format!("bytes {}-{}/{}", begin, end - 1, version_meta.size),
)
.status(StatusCode::PARTIAL_CONTENT);
@ -206,35 +209,49 @@ pub async fn handle_get_range(
None => return Err(Error::NotFound),
};
let blocks = version
.blocks()
.iter()
.cloned()
.filter(|block| block.offset + block.size > begin && block.offset < end)
.collect::<Vec<_>>();
// We will store here the list of blocks that have an intersection with the requested
// range, as well as their "true offset", which is their actual offset in the complete
// file (whereas block.offset designates the offset of the block WITHIN THE PART
// block.part_number, which is not the same in the case of a multipart upload)
let mut blocks = Vec::with_capacity(std::cmp::min(
version.blocks().len(),
4 + ((end - begin) / std::cmp::max(version.blocks()[0].size as u64, 1024)) as usize,
));
let mut true_offset = 0;
for b in version.blocks().iter() {
if true_offset >= end {
break;
}
// Keep only blocks that have an intersection with the requested range
if true_offset < end && true_offset + b.size > begin {
blocks.push((b.clone(), true_offset));
}
true_offset += b.size;
}
let body_stream = futures::stream::iter(blocks)
.map(move |block| {
.map(move |(block, true_offset)| {
let garage = garage.clone();
async move {
let data = garage.block_manager.rpc_get_block(&block.hash).await?;
let start_in_block = if block.offset > begin {
let data = Bytes::from(data);
let start_in_block = if true_offset > begin {
0
} else {
begin - block.offset
begin - true_offset
};
let end_in_block = if block.offset + block.size < end {
let end_in_block = if true_offset + block.size < end {
block.size
} else {
end - block.offset
end - true_offset
};
Result::<Bytes, Error>::Ok(Bytes::from(
data[start_in_block as usize..end_in_block as usize].to_vec(),
data.slice(start_in_block as usize..end_in_block as usize),
))
}
})
.buffered(2);
//let body: Body = Box::new(StreamBody::new(Box::pin(body_stream)));
let body = hyper::body::Body::wrap_stream(body_stream);
Ok(resp_builder.body(body)?)
}