frostfs-node/pkg/morph/event/container/delete.go

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package container
import (
"fmt"
"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/morph/client"
"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/morph/event"
cid "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/container/id"
"github.com/nspcc-dev/neo-go/pkg/core/state"
"github.com/nspcc-dev/neo-go/pkg/network/payload"
)
// Delete structure of container.Delete notification from morph chain.
type Delete struct {
ContainerIDValue []byte
SignatureValue []byte
TokenValue []byte
PublicKeyValue []byte
// For notary notifications only.
// Contains raw transactions of notary request.
NotaryRequestValue *payload.P2PNotaryRequest
}
// MorphEvent implements Neo:Morph Event interface.
func (Delete) MorphEvent() {}
// ContainerID is a marshalled container structure, defined in API.
func (d Delete) ContainerID() []byte { return d.ContainerIDValue }
// Signature of marshalled container by container owner.
func (d Delete) Signature() []byte { return d.SignatureValue }
// SessionToken returns binary token of the session
// within which the eACL was set.
func (d Delete) SessionToken() []byte {
return d.TokenValue
}
// NotaryRequest returns raw notary request if notification
// was received via notary service. Otherwise, returns nil.
func (d Delete) NotaryRequest() *payload.P2PNotaryRequest {
return d.NotaryRequestValue
}
const expectedItemNumDelete = 4
// DeleteSuccess structures notification event of successful container removal
// thrown by Container contract.
type DeleteSuccess struct {
// Identifier of the removed container.
ID cid.ID
}
// MorphEvent implements Neo:Morph Event interface.
func (DeleteSuccess) MorphEvent() {}
// ParseDeleteSuccess decodes notification event thrown by Container contract into
// DeleteSuccess and returns it as event.Event.
func ParseDeleteSuccess(e *state.ContainedNotificationEvent) (event.Event, error) {
items, err := event.ParseStackArray(e)
if err != nil {
return nil, fmt.Errorf("parse stack array from raw notification event: %w", err)
}
const expectedItemNumDeleteSuccess = 1
if ln := len(items); ln != expectedItemNumDeleteSuccess {
return nil, event.WrongNumberOfParameters(expectedItemNumDeleteSuccess, ln)
}
binID, err := client.BytesFromStackItem(items[0])
if err != nil {
return nil, fmt.Errorf("parse container ID item: %w", err)
}
var res DeleteSuccess
err = res.ID.Decode(binID)
if err != nil {
return nil, fmt.Errorf("decode container ID: %w", err)
}
return res, nil
}