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niksis02
9debca3eb7
Fixes #2525 `CompleteMultipartUpload` returned the stored part's ETag in `InvalidPart` errors instead of the ETag the client sent: posix on an ETag mismatch, and azure on a zero-byte part mismatch, where it returned the expected block ID. Azure also returned an empty ETag for a part that was never uploaded. All three now return the client's ETag. Like S3, `GetInvalidPartErr` removes every `"` from it, inner quotes included, and keeps surrounding whitespace. `SetResponseHeaders` turns off header name normalization and leaves it off, so response header names stay lowercase. Before it runs, the `RequestIDs` middleware stored `X-Amz-Request-Id` and `X-Amz-Id-2`. Afterwards, the `EnsureRequestIDs` call in `ProcessController` stored `x-amz-request-id` and `x-amz-id-2`. Every response with a headers map, success responses included, therefore sent both pairs. `EnsureRequestIDs`, `RequestID` and `HostID` now use `SetCanonical` and `PeekCanonical` with the lowercase names, so the normalization setting doesn't affect them, and each header is sent once in lowercase as S3 does.