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azure/b2/gs/s3/swift: adapt cloud backend

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This commit is contained in:
Michael Eischer 2024-05-11 00:11:23 +02:00
parent e793c002ec
commit d40f23e716
5 changed files with 116 additions and 3 deletions
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28
internal/backend/swift/swift.go
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@ -153,7 +153,18 @@ func (be *beSwift) openReader(ctx context.Context, h backend.Handle, length int,
obj, _, err := be.conn.ObjectOpen(ctx, be.container, objName, false, headers)
if err != nil {
return nil, errors.Wrap(err, "conn.ObjectOpen")
return nil, fmt.Errorf("conn.ObjectOpen: %w", err)
}
if length > 0 {
// get response length, but don't cause backend calls
cctx, cancel := context.WithCancel(context.Background())
cancel()
objLength, e := obj.Length(cctx)
if e == nil && objLength != int64(length) {
_ = obj.Close()
return nil, &swift.Error{StatusCode: http.StatusRequestedRangeNotSatisfiable, Text: "restic-file-too-short"}
}
}
return obj, nil
@ -242,6 +253,21 @@ func (be *beSwift) IsNotExist(err error) bool {
return errors.As(err, &e) && e.StatusCode == http.StatusNotFound
}
func (be *beSwift) IsPermanentError(err error) bool {
if be.IsNotExist(err) {
return true
}
var serr *swift.Error
if errors.As(err, &serr) {
if serr.StatusCode == http.StatusRequestedRangeNotSatisfiable || serr.StatusCode == http.StatusUnauthorized || serr.StatusCode == http.StatusForbidden {
return true
}
}
return false
}
// Delete removes all restic objects in the container.
// It will not remove the container itself.
func (be *beSwift) Delete(ctx context.Context) error {