frostfs-node/pkg/morph/event/container/eacl.go
Stanislav Bogatyrev cb016d53a6 [#1] Fix comments and error messages
Signed-off-by: Stanislav Bogatyrev <s.bogatyrev@yadro.com>
2023-02-06 17:41:14 +03:00

101 lines
2.5 KiB
Go

package container
import (
"fmt"
"github.com/TrueCloudLab/frostfs-node/pkg/morph/client"
"github.com/TrueCloudLab/frostfs-node/pkg/morph/event"
"github.com/nspcc-dev/neo-go/pkg/core/state"
"github.com/nspcc-dev/neo-go/pkg/network/payload"
)
// SetEACL represents structure of notification about
// modified eACL table coming from FrostFS Container contract.
type SetEACL struct {
table []byte
signature []byte
publicKey []byte
token []byte
// For notary notifications only.
// Contains raw transactions of notary request.
notaryRequest *payload.P2PNotaryRequest
}
// MorphEvent implements Neo:Morph Event interface.
func (SetEACL) MorphEvent() {}
// Table returns returns eACL table in a binary FrostFS API format.
func (x SetEACL) Table() []byte {
return x.table
}
// Signature returns signature of the binary table.
func (x SetEACL) Signature() []byte {
return x.signature
}
// PublicKey returns public keys of container
// owner in a binary format.
func (x SetEACL) PublicKey() []byte {
return x.publicKey
}
// SessionToken returns binary token of the session
// within which the eACL was set.
func (x SetEACL) SessionToken() []byte {
return x.token
}
// NotaryRequest returns raw notary request if notification
// was received via notary service. Otherwise, returns nil.
func (x SetEACL) NotaryRequest() *payload.P2PNotaryRequest {
return x.notaryRequest
}
const expectedItemNumEACL = 4
// ParseSetEACL parses SetEACL notification event from list of stack items.
//
// Expects 4 stack items.
func ParseSetEACL(e *state.ContainedNotificationEvent) (event.Event, error) {
var (
ev SetEACL
err error
)
params, err := event.ParseStackArray(e)
if err != nil {
return nil, fmt.Errorf("could not parse stack items from notify event: %w", err)
}
if ln := len(params); ln != expectedItemNumEACL {
return nil, event.WrongNumberOfParameters(expectedItemNumEACL, ln)
}
// parse table
ev.table, err = client.BytesFromStackItem(params[0])
if err != nil {
return nil, fmt.Errorf("could not parse binary table: %w", err)
}
// parse signature
ev.signature, err = client.BytesFromStackItem(params[1])
if err != nil {
return nil, fmt.Errorf("could not parse table signature: %w", err)
}
// parse public key
ev.publicKey, err = client.BytesFromStackItem(params[2])
if err != nil {
return nil, fmt.Errorf("could not parse binary public key: %w", err)
}
// parse session token
ev.token, err = client.BytesFromStackItem(params[3])
if err != nil {
return nil, fmt.Errorf("could not get session token: %w", err)
}
return ev, nil
}