52 lines
1.4 KiB
Go
52 lines
1.4 KiB
Go
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package nfs
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import (
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"bytes"
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"context"
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"os"
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billy "github.com/go-git/go-billy/v5"
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"github.com/willscott/go-nfs-client/nfs/xdr"
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)
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// onCommit - note this is a no-op, as we always push writes to the backing store.
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func onCommit(ctx context.Context, w *response, userHandle Handler) error {
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w.errorFmt = wccDataErrorFormatter
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handle, err := xdr.ReadOpaque(w.req.Body)
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if err != nil {
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return &NFSStatusError{NFSStatusInval, err}
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}
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// The conn will drain the unread offset and count arguments.
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fs, path, err := userHandle.FromHandle(handle)
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if err != nil {
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return &NFSStatusError{NFSStatusStale, err}
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}
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if !CapabilityCheck(fs, billy.WriteCapability) {
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return &NFSStatusError{NFSStatusServerFault, os.ErrPermission}
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}
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writer := bytes.NewBuffer([]byte{})
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if err := xdr.Write(writer, uint32(NFSStatusOk)); err != nil {
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return err
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}
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// no pre-op cache data.
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if err := xdr.Write(writer, uint32(0)); err != nil {
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return &NFSStatusError{NFSStatusServerFault, err}
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}
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if err := WritePostOpAttrs(writer, tryStat(ctx, fs, path)); err != nil {
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return &NFSStatusError{NFSStatusServerFault, err}
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}
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// write the 8 bytes of write verification.
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if err := xdr.Write(writer, w.Server.ID); err != nil {
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return &NFSStatusError{NFSStatusServerFault, err}
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}
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if err := w.Write(writer.Bytes()); err != nil {
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return &NFSStatusError{NFSStatusServerFault, err}
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}
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return nil
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}
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