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rustfs/crates
Zhengchao An 507447da12 fix(restore): reject SELECT restore and keep typed S3 errors (#7113)
* fix(restore): reject SELECT restore and keep typed S3 errors

RestoreObject accepted `Type=SELECT` requests, but the restore path can
only write the retrieved bytes back to the source key: `put_restore_opts`
built SELECT output options and `restore_transitioned_object` then PUT
them over the source bucket/object. On an unversioned bucket that dropped
`x-amz-restore`, user metadata and tags from the live object; on a
versioned bucket it published a bogus latest version. Nothing was ever
written to `OutputLocation.S3`, yet the response still carried a
fabricated `x-amz-restore-output-path`.

Reject SELECT at the API boundary with a typed NotImplemented, before any
guard or metadata write, and fail closed in `put_restore_opts` as the
backstop for any other caller.

Every other RestoreObject failure was collapsed into a `Custom` error
code, which serializes as a generic retryable 500: a missing key or
version, a malformed version-id, an object that was never transitioned,
an illegal `Days`, and authorization or storage failures all looked the
same to a client. Map them to their S3 identities instead — NoSuchKey,
NoSuchVersion, InvalidArgument, InvalidObjectState, InvalidRequest,
MalformedXML — by preserving `StorageError` through `post_restore_opts`
and letting `ApiError` do the mapping. The intentional 409
RestoreAlreadyInProgress and 503 SlowDown behaviour is unchanged, and
request validation now runs before any lock is taken.

backlog#1341, backlog#2205

* test(restore): give the typed-error regression the ecstore test stack

`execute_restore_object_maps_failures_to_typed_s3_errors` builds a real
ECStore fixture, and under nextest each test runs in a spawned thread with
libtest's 2 MiB stack. On Linux CI that overflowed: the test aborted with
SIGABRT / "fatal runtime error: stack overflow" while every other test in
the run passed.

Add it to the `ecstore-base-stack` filter in both the default and ci
profiles, alongside the other `package(rustfs)` tests that drive the same
store fixture. 4 MiB matches what the deeper multipart and access
roundtrips already use.
2026-09-04 12:04:28 +00:00
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