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perf: eliminate redundant PG round-trip for blob_hash after image upload

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upload_file_inner now returns (FileDto, blob_hash) tuple, propagating
the BLAKE3 hash computed during the hash-on-write spool directly to
upload_file_with_thumbnails. This removes the unnecessary
get_blob_hash() SQL query that was fetching a value already in memory.

Saves ~0.5-2ms + 1 PG pool connection per image upload.
This commit is contained in:
Dionisio
2026-03-07 00:10:56 +01:00
parent 1a1e635bd3
commit 69d25d46d6
1 changed files with 42 additions and 48 deletions
Download Patch File Download Diff File Expand all files Collapse all files
src/interfaces/api/handlers/file_handler.rs
+42 -48
View File
@@ -52,7 +52,7 @@ impl FileHandler {
multipart: Multipart,
) -> impl IntoResponse {
match Self::upload_file_inner(&state, &auth_user, multipart).await {
Ok(file) => Self::created_json_response(&file).into_response(),
Ok((file, _blob_hash)) => Self::created_json_response(&file).into_response(),
Err(response) => response.into_response(),
}
}
@@ -60,13 +60,16 @@ impl FileHandler {
/// Core upload logic shared by [`Self::upload_file`] and
/// [`Self::upload_file_with_thumbnails`].
///
/// Returns the typed `FileDto` on success so callers can use it
/// directly (e.g. for thumbnail generation) without re-parsing JSON.
/// Returns `(FileDto, blob_hash)` on success. The blob hash is the
/// BLAKE3 digest computed during the hash-on-write spool and is
/// propagated without an extra database round-trip so that callers
/// (e.g. thumbnail generation) can resolve the physical blob path
/// immediately.
async fn upload_file_inner(
state: &GlobalState,
auth_user: &AuthUser,
mut multipart: Multipart,
) -> Result<crate::application::dtos::file_dto::FileDto, Response<Body>> {
) -> Result<(crate::application::dtos::file_dto::FileDto, String), Response<Body>> {
let upload_service = &state.applications.file_upload_service;
let mut folder_id: Option<String> = None;
@@ -106,11 +109,7 @@ impl FileHandler {
if let Some(ref fid) = folder_id {
use crate::application::ports::inbound::FolderUseCase;
let folder_service = &state.applications.folder_service;
if folder_service
.get_folder_owned(fid, &auth_user.id)
.await
.is_err()
{
if folder_service.get_folder_owned(fid, &auth_user.id).await.is_err() {
tracing::warn!(
"⛔ UPLOAD REJECTED (IDOR): user='{}' attempted upload to folder '{}' owned by another user",
auth_user.username,
@@ -208,17 +207,18 @@ impl FileHandler {
// Empty file — use streaming path with the (empty) temp file
if total_size == 0 {
let hash = hasher.finalize().to_hex().to_string();
return upload_service
let dto = upload_service
.upload_file_streaming(
filename,
folder_id,
content_type,
&temp_path,
0,
Some(hash),
Some(hash.clone()),
)
.await
.map_err(Self::domain_error_response);
.map_err(Self::domain_error_response)?;
return Ok((dto, hash));
}
// Finalize hash
@@ -256,7 +256,7 @@ impl FileHandler {
content_type,
&temp_path,
total_size,
Some(hash),
Some(hash.clone()),
)
.await
{
@@ -267,7 +267,7 @@ impl FileHandler {
total_size,
file.id
);
return Ok(file);
return Ok((file, hash));
}
Err(err) => {
let _ = tokio::fs::remove_file(&temp_path).await;
@@ -370,8 +370,10 @@ impl FileHandler {
.unwrap()
.into_response()
}
Err(err) => AppError::internal_error(format!("Thumbnail generation failed: {}", err))
.into_response(),
Err(err) => {
AppError::internal_error(format!("Thumbnail generation failed: {}", err))
.into_response()
}
}
}
@@ -544,7 +546,9 @@ impl FileHandler {
.unwrap()
.into_response(),
},
Err(err) => AppError::from(err).into_response(),
Err(err) => {
AppError::from(err).into_response()
}
}
}
@@ -594,7 +598,9 @@ impl FileHandler {
.insert(header::ETAG, header::HeaderValue::from_str(&etag).unwrap());
resp
}
Err(err) => AppError::from(err).into_response(),
Err(err) => {
AppError::from(err).into_response()
}
}
}
@@ -608,12 +614,14 @@ impl FileHandler {
auth_user: AuthUser,
multipart: Multipart,
) -> impl IntoResponse {
let file = match Self::upload_file_inner(&state, &auth_user, multipart).await {
Ok(f) => f,
let (file, blob_hash) = match Self::upload_file_inner(&state, &auth_user, multipart).await {
Ok(pair) => pair,
Err(response) => return response.into_response(),
};
// Generate thumbnails for supported images in background
// Generate thumbnails for supported images in background.
// The blob_hash was already computed during the hash-on-write spool,
// so we resolve the physical path directly — no extra DB round-trip.
if state
.core
.thumbnail_service
@@ -621,29 +629,13 @@ impl FileHandler {
{
let file_id = file.id.clone();
let thumbnail_service = state.core.thumbnail_service.clone();
let file_path = state.core.dedup_service.blob_path(&blob_hash);
// Resolve physical blob path before spawning
match state
.repositories
.file_read_repository
.get_blob_hash(&file_id)
.await
{
Ok(blob_hash) => {
let file_path = state.core.dedup_service.blob_path(&blob_hash);
tokio::spawn(async move {
tracing::info!("🖼️ Generating thumbnails for: {}", file_id);
thumbnail_service.generate_all_sizes_background(file_id, file_path);
});
}
Err(e) => {
tracing::warn!(
"⚠️ Cannot generate thumbnails for {}: blob hash not found: {}",
file_id,
e
);
}
}
tokio::spawn(async move {
tracing::info!("🖼️ Generating thumbnails for: {}", file_id);
thumbnail_service
.generate_all_sizes_background(file_id, file_path);
});
}
Self::created_json_response(&file).into_response()
@@ -723,7 +715,7 @@ impl FileHandler {
match result {
Ok(_) => StatusCode::NO_CONTENT.into_response(),
Err(err) => AppError::from(err).into_response(),
Err(err) => AppError::from(err).into_response()
}
}
@@ -755,7 +747,7 @@ impl FileHandler {
let mgmt = &state.applications.file_management_service;
match mgmt.rename_file_owned(&id, &auth_user.id, &new_name).await {
Ok(file_dto) => (StatusCode::OK, Json(file_dto)).into_response(),
Err(err) => AppError::from(err).into_response(),
Err(err) => AppError::from(err).into_response()
}
}
@@ -775,7 +767,7 @@ impl FileHandler {
.await
{
Ok(file) => (StatusCode::OK, Json(file)).into_response(),
Err(err) => AppError::from(err).into_response(),
Err(err) => AppError::from(err).into_response()
}
}
@@ -794,7 +786,7 @@ impl FileHandler {
let mgmt = &state.applications.file_management_service;
match mgmt.move_file_owned(&id, &auth_user.id, folder_id).await {
Ok(file_dto) => (StatusCode::OK, Json(file_dto)).into_response(),
Err(err) => AppError::from(err).into_response(),
Err(err) => AppError::from(err).into_response()
}
}
@@ -853,7 +845,9 @@ impl FileHandler {
})
.collect();
format!("{disposition}; filename=\"{ascii_safe}\"; filename*=UTF-8''{encoded}")
format!(
"{disposition}; filename=\"{ascii_safe}\"; filename*=UTF-8''{encoded}"
)
}
/// Build a 201 Created JSON response.