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refactor(file|folder): separate etag and blob_hash

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This commit is contained in:
Edouard Vanbelle
2026-06-06 15:37:27 +02:00
parent 6aee68b34c
commit 0135930da9
20 changed files with 307 additions and 77 deletions
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src/interfaces/nextcloud/webdav_handler.rs
+22 -5
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@@ -348,11 +348,18 @@ async fn handle_get(
chrono::DateTime::<Utc>::from_timestamp(timestamp_to_i64(file.modified_at), 0)
.unwrap_or_else(Utc::now);
// ETag comes from `FileDto::etag` (populated from `File::etag()`
// in the `From<File>` impl) — single source of truth, so GET,
// HEAD, PUT-response, MOVE, and PROPFIND all emit byte-identical
// values for the same file. NC's sync engine compares cached
// PROPFIND ETags against GET/HEAD responses; using `file.id` here
// (a UUID) while PROPFIND emitted the blob hash made NC see
// every file as "remotely changed" on first descent.
Ok(Response::builder()
.status(StatusCode::OK)
.header(header::CONTENT_TYPE, file.mime_type.as_ref())
.header(header::CONTENT_LENGTH, file.size)
.header(header::ETAG, format!("\"{}\"", file.id))
.header(header::ETAG, format!("\"{}\"", file.etag))
.header(header::LAST_MODIFIED, modified_at.to_rfc2822())
.body(Body::from_stream(std::pin::Pin::from(stream)))
.unwrap())
@@ -400,11 +407,14 @@ async fn handle_head(
chrono::DateTime::<Utc>::from_timestamp(timestamp_to_i64(file.modified_at), 0)
.unwrap_or_else(Utc::now);
// ETag comes from `FileDto::etag` — see the same comment block on
// the GET handler. HEAD and GET must agree byte-for-byte; pulling
// both from the same DTO field guarantees that.
Ok(Response::builder()
.status(StatusCode::OK)
.header(header::CONTENT_TYPE, file.mime_type.as_ref())
.header(header::CONTENT_LENGTH, file.size)
.header(header::ETAG, format!("\"{}\"", file.id))
.header(header::ETAG, format!("\"{}\"", file.etag))
.header(header::LAST_MODIFIED, modified_at.to_rfc2822())
.body(Body::empty())
.unwrap())
@@ -850,9 +860,13 @@ async fn handle_move(
let dest_internal = nc_to_internal_path(&user.username, &dest_subpath)?;
let mut builder = Response::builder().status(StatusCode::CREATED);
if let Ok(moved) = file_service.get_file_by_path(&dest_internal).await {
// Route through `FileDto::etag` so the MOVE response
// matches what a subsequent PROPFIND on the destination
// will return — `moved.id` (UUID) would differ from the
// blob hash and trigger NC's "remote changed" detection.
builder = builder
.header(header::ETAG, format!("\"{}\"", moved.id))
.header("oc-etag", format!("\"{}\"", moved.id));
.header(header::ETAG, format!("\"{}\"", moved.etag))
.header("oc-etag", format!("\"{}\"", moved.etag));
}
return Ok(builder.body(Body::empty()).unwrap());
@@ -1094,7 +1108,10 @@ pub fn write_folder_response<W: std::io::Write>(
.unwrap_or_else(Utc::now);
write_text_element(xml, "d:getlastmodified", &modified_at.to_rfc2822())?;
write_text_element(xml, "d:getetag", &format!("\"{}\"", folder.id))?;
// Route through `FolderDto::etag` (= `Folder::etag()`, currently
// the folder UUID — see the entity for the documented v1 formula
// and the follow-up plan to make it descendant-aware).
write_text_element(xml, "d:getetag", &format!("\"{}\"", folder.etag))?;
write_text_element(xml, "d:getcontenttype", "httpd/unix-directory")?;
write_text_element(xml, "d:getcontentlength", "0")?;
write_text_element(xml, "d:creationdate", &created_at.to_rfc3339())?;