frostfs-node/pkg/morph/client/container/eacl.go
Evgenii Stratonikov 71b87155ef [#521] *: use stdlib errors package
Signed-off-by: Evgenii Stratonikov <evgeniy@nspcc.ru>
2021-05-19 16:42:54 +03:00

89 lines
2.2 KiB
Go

package container
import (
"fmt"
"github.com/nspcc-dev/neofs-node/pkg/morph/client"
)
// EACLArgs groups the arguments
// of get eACL test invoke call.
type EACLArgs struct {
cid []byte // container identifier
}
// EACLValues groups the stack parameters
// returned by get eACL test invoke.
type EACLValues struct {
eacl []byte // extended ACL table
signature []byte // RFC-6979 signature of extended ACL table
publicKey []byte // public key of the extended ACL table signer
}
// SetCID sets the container identifier
// in a binary format.
func (g *EACLArgs) SetCID(v []byte) {
g.cid = v
}
// EACL returns the eACL table
// in a binary format.
func (g *EACLValues) EACL() []byte {
return g.eacl
}
// Signature returns RFC-6979 signature of extended ACL table.
func (g *EACLValues) Signature() []byte {
return g.signature
}
// PublicKey of the signature.
func (g *EACLValues) PublicKey() []byte {
return g.publicKey
}
// EACL performs the test invoke of get eACL
// method of NeoFS Container contract.
func (c *Client) EACL(args EACLArgs) (*EACLValues, error) {
prms, err := c.client.TestInvoke(
c.eaclMethod,
args.cid,
)
if err != nil {
return nil, fmt.Errorf("could not perform test invocation (%s): %w", c.eaclMethod, err)
} else if ln := len(prms); ln != 1 {
return nil, fmt.Errorf("unexpected stack item count (%s): %d", c.eaclMethod, ln)
}
arr, err := client.ArrayFromStackItem(prms[0])
if err != nil {
return nil, fmt.Errorf("could not get item array of eACL (%s): %w", c.eaclMethod, err)
}
if len(arr) != 3 {
return nil, fmt.Errorf("unexpected eacl stack item count (%s): %d", c.eaclMethod, len(arr))
}
eacl, err := client.BytesFromStackItem(arr[0])
if err != nil {
return nil, fmt.Errorf("could not get byte array of eACL (%s): %w", c.eaclMethod, err)
}
sig, err := client.BytesFromStackItem(arr[1])
if err != nil {
return nil, fmt.Errorf("could not get byte array of eACL signature (%s): %w", c.eaclMethod, err)
}
pub, err := client.BytesFromStackItem(arr[2])
if err != nil {
return nil, fmt.Errorf("could not get byte array of eACL public key (%s): %w", c.eaclMethod, err)
}
return &EACLValues{
eacl: eacl,
signature: sig,
publicKey: pub,
}, nil
}