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use file metadata for returning data ranges and lengths

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This commit is contained in:
Ilion Beyst 2022-07-01 20:45:26 +02:00
parent 419029738d
commit 7b88bb0502
1 changed files with 18 additions and 12 deletions
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30
planetwars-server/src/modules/registry.rs
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@ -134,6 +134,13 @@ fn file_sha256_digest(path: &std::path::Path) -> std::io::Result<String> {
Ok(format!("{:x}", hasher.finalize()))
}
/// Get the index of the last byte in a file
async fn last_byte_pos(file: &tokio::fs::File) -> std::io::Result<u64> {
let n_bytes = file.metadata().await?.len();
let pos = if n_bytes == 0 { 0 } else { n_bytes - 1 };
Ok(pos)
}
async fn get_root(_auth: RegistryAuth) -> impl IntoResponse {
// root should return 200 OK to confirm api compliance
Response::builder()
@ -165,7 +172,8 @@ async fn check_blob_exists(
let digest = raw_digest.strip_prefix("sha256:").unwrap();
let blob_path = PathBuf::from(REGISTRY_PATH).join("sha256").join(&digest);
if blob_path.exists() {
Ok(StatusCode::OK)
let metadata = std::fs::metadata(&blob_path).unwrap();
Ok((StatusCode::OK, [("Content-Length", metadata.len())]))
} else {
Err(StatusCode::NOT_FOUND)
}
@ -221,11 +229,7 @@ async fn patch_upload(
) -> Result<impl IntoResponse, StatusCode> {
check_access(&repository_name, &auth, &db_conn)?;
// let content_length = headers.get("Content-Length").unwrap();
// let content_range = headers.get("Content-Range").unwrap();
// let content_type = headers.get("Content-Type").unwrap();
// assert!(content_type == "application/octet-stream");
let mut len = 0;
// TODO: support content range header in request
let upload_path = PathBuf::from(REGISTRY_PATH).join("uploads").join(&uuid);
let mut file = tokio::fs::OpenOptions::new()
.read(false)
@ -237,9 +241,10 @@ async fn patch_upload(
.unwrap();
while let Some(Ok(chunk)) = stream.next().await {
file.write_all(&chunk).await.unwrap();
len += chunk.len();
}
let last_byte = last_byte_pos(&file).await.unwrap();
Ok(Response::builder()
.status(StatusCode::ACCEPTED)
.header(
@ -247,7 +252,8 @@ async fn patch_upload(
format!("/v2/{}/blobs/uploads/{}", repository_name, uuid),
)
.header("Docker-Upload-UUID", uuid)
.header("Range", format!("0-{}", len))
// range indicating current progress of the upload
.header("Range", format!("0-{}", last_byte))
.body(Body::empty())
.unwrap())
}
@ -267,7 +273,6 @@ async fn put_upload(
) -> Result<impl IntoResponse, StatusCode> {
check_access(&repository_name, &auth, &db_conn)?;
let mut _len = 0;
let upload_path = PathBuf::from(REGISTRY_PATH).join("uploads").join(&uuid);
let mut file = tokio::fs::OpenOptions::new()
.read(false)
@ -278,11 +283,12 @@ async fn put_upload(
.await
.unwrap();
let range_begin = last_byte_pos(&file).await.unwrap();
while let Some(Ok(chunk)) = stream.next().await {
file.write_all(&chunk).await.unwrap();
_len += chunk.len();
}
file.flush().await.unwrap();
let range_end = last_byte_pos(&file).await.unwrap();
let expected_digest = params.digest.strip_prefix("sha256:").unwrap();
let digest = file_sha256_digest(&upload_path).unwrap();
@ -301,8 +307,8 @@ async fn put_upload(
format!("/v2/{}/blobs/{}", repository_name, digest),
)
.header("Docker-Upload-UUID", uuid)
// TODO: set content-range
// .header("Content-Range", format!("0-{}", len))
// content range for bytes that were in the body of this request
.header("Content-Range", format!("{}-{}", range_begin, range_end))
.header("Docker-Content-Digest", params.digest)
.body(Body::empty())
.unwrap())