69 lines
1.8 KiB
Go
69 lines
1.8 KiB
Go
package wrapper
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import (
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"github.com/nspcc-dev/neofs-api-go/pkg/acl/eacl"
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"github.com/nspcc-dev/neofs-api-go/pkg/container"
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client "github.com/nspcc-dev/neofs-node/pkg/morph/client/container"
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"github.com/pkg/errors"
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)
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var ErrEACLNotFound = errors.New("extended ACL table is not set for this container")
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// GetEACL reads the extended ACL table from NeoFS system
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// through Container contract call.
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func (w *Wrapper) GetEACL(cid *container.ID) (*eacl.Table, []byte, error) {
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if cid == nil {
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return nil, nil, errNilArgument
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}
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args := client.EACLArgs{}
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if v2 := cid.ToV2(); v2 == nil {
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return nil, nil, errUnsupported // use other major version if there any
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} else {
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args.SetCID(v2.GetValue())
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}
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rpcAnswer, err := w.client.EACL(args)
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if err != nil {
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return nil, nil, err
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}
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// Client may not return errors if the table is missing, so check this case additionally.
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// The absence of a signature in the response can be taken as an eACL absence criterion,
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// since unsigned table cannot be approved in the storage by design.
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sig := rpcAnswer.Signature()
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if len(sig) == 0 {
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return nil, nil, ErrEACLNotFound
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}
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table := eacl.NewTable()
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if err = table.Unmarshal(rpcAnswer.EACL()); err != nil {
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// use other major version if there any
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return nil, nil, err
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}
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return table, sig, nil
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}
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// PutEACL saves the extended ACL table in NeoFS system
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// through Container contract call.
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//
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// Returns any error encountered that caused the saving to interrupt.
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func (w *Wrapper) PutEACL(table *eacl.Table, signature []byte) error {
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if table == nil || len(signature) == 0 {
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return errNilArgument
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}
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args := client.SetEACLArgs{}
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args.SetSignature(signature)
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data, err := table.Marshal()
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if err != nil {
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return errors.Wrap(err, "can't marshal eacl table")
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}
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args.SetEACL(data)
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return w.client.SetEACL(args)
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}
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