frostfs-node/pkg/innerring/processors/container/process_container.go

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package container
import (
"crypto/elliptic"
"crypto/sha256"
"errors"
"fmt"
"github.com/nspcc-dev/neo-go/pkg/crypto/keys"
containerSDK "github.com/nspcc-dev/neofs-api-go/pkg/container"
"github.com/nspcc-dev/neofs-node/pkg/core/container"
containerEvent "github.com/nspcc-dev/neofs-node/pkg/morph/event/container"
"go.uber.org/zap"
)
// Process new container from the user by checking container sanity
// and sending approve tx back to morph.
func (cp *Processor) processContainerPut(put *containerEvent.Put) {
if !cp.alphabetState.IsAlphabet() {
cp.log.Info("non alphabet mode, ignore container put")
return
}
err := cp.checkPutContainer(put)
if err != nil {
cp.log.Error("put container check failed",
zap.String("error", err.Error()),
)
return
}
cp.approvePutContainer(put)
}
func (cp *Processor) checkPutContainer(e *containerEvent.Put) error {
// verify signature
key, err := keys.NewPublicKeyFromBytes(e.PublicKey(), elliptic.P256())
if err != nil {
return fmt.Errorf("invalid key: %w", err)
}
binCnr := e.Container()
tableHash := sha256.Sum256(binCnr)
if !key.Verify(e.Signature(), tableHash[:]) {
return errors.New("invalid signature")
}
// unmarshal container structure
cnr := containerSDK.New()
err = cnr.Unmarshal(binCnr)
if err != nil {
return fmt.Errorf("invalid binary container: %w", err)
}
// perform format check
err = container.CheckFormat(cnr)
if err != nil {
return fmt.Errorf("incorrect container format: %w", err)
}
return cp.checkKeyOwnership(cnr, key)
}
func (cp *Processor) approvePutContainer(e *containerEvent.Put) {
// FIXME: here we should bind key to owner if needed
err := cp.cnrClient.Put(e.Container(), e.PublicKey(), e.Signature(), e.SessionToken())
if err != nil {
cp.log.Error("could not approve put container",
zap.String("error", err.Error()),
)
}
}
// Process delete container operation from the user by checking container sanity
// and sending approve tx back to morph.
func (cp *Processor) processContainerDelete(delete *containerEvent.Delete) {
if !cp.alphabetState.IsAlphabet() {
cp.log.Info("non alphabet mode, ignore container delete")
return
}
err := cp.checkDeleteContainer(delete)
if err != nil {
cp.log.Error("delete container check failed",
zap.String("error", err.Error()),
)
return
}
cp.approveDeleteContainer(delete)
}
func (cp *Processor) checkDeleteContainer(e *containerEvent.Delete) error {
cid := e.ContainerID()
// receive owner of the related container
cnr, err := cp.cnrClient.Get(cid)
if err != nil {
return fmt.Errorf("could not receive the container: %w", err)
}
// receive all owner keys
ownerKeys, err := cp.idClient.AccountKeys(cnr.OwnerID())
if err != nil {
return fmt.Errorf("could not received owner keys %s: %w", cnr.OwnerID(), err)
}
// verify signature
cidHash := sha256.Sum256(cid)
sig := e.Signature()
for _, ownerKey := range ownerKeys {
if ownerKey.Verify(sig, cidHash[:]) {
return nil
}
}
return errors.New("signature verification failed on all owner keys ")
}
func (cp *Processor) approveDeleteContainer(e *containerEvent.Delete) {
err := cp.cnrClient.Delete(e.ContainerID(), e.Signature(), e.SessionToken())
if err != nil {
cp.log.Error("could not approve delete container",
zap.String("error", err.Error()),
)
}
}