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[#170] oid, cid: Refactor and document package functionality

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Signed-off-by: Pavel Karpy <carpawell@nspcc.ru>
This commit is contained in:
Pavel Karpy 2022-04-11 19:25:14 +03:00 • committed by LeL
parent 24d6c2221f
commit f7172adf18
49 changed files with 831 additions and 439 deletions
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52
object/fmt.go
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@ -7,10 +7,10 @@ import (
"errors"
"fmt"
"github.com/nspcc-dev/neofs-api-go/v2/refs"
signatureV2 "github.com/nspcc-dev/neofs-api-go/v2/signature"
"github.com/nspcc-dev/neofs-sdk-go/checksum"
oid "github.com/nspcc-dev/neofs-sdk-go/object/id"
"github.com/nspcc-dev/neofs-sdk-go/signature"
sigutil "github.com/nspcc-dev/neofs-sdk-go/util/signature"
)
@ -55,13 +55,13 @@ func VerifyPayloadChecksum(obj *Object) error {
}
// CalculateID calculates identifier for the object.
func CalculateID(obj *Object) (*oid.ID, error) {
func CalculateID(obj *Object) (oid.ID, error) {
data, err := obj.ToV2().GetHeader().StableMarshal(nil)
if err != nil {
return nil, err
return oid.ID{}, err
}
id := oid.NewID()
var id oid.ID
id.SetSHA256(sha256.Sum256(data))
return id, nil
@ -88,43 +88,45 @@ func VerifyID(obj *Object) error {
return err
}
if !id.Equal(obj.ID()) {
if !id.Equals(obj.ID()) {
return errIncorrectID
}
return nil
}
func CalculateIDSignature(key *ecdsa.PrivateKey, id *oid.ID) (*signature.Signature, error) {
return sigutil.SignData(
key,
signatureV2.StableMarshalerWrapper{
SM: id.ToV2(),
})
}
func CalculateAndSetSignature(key *ecdsa.PrivateKey, obj *Object) error {
sig, err := CalculateIDSignature(key, obj.ID())
// CalculateAndSetSignature signs id with provided key and sets that signature to
// the object.
func CalculateAndSetSignature(key ecdsa.PrivateKey, obj *Object) error {
sig, err := obj.ID().CalculateIDSignature(key)
if err != nil {
return err
}
obj.SetSignature(sig)
obj.SetSignature(&sig)
return nil
}
func VerifyIDSignature(obj *Object) error {
return sigutil.VerifyData(
// VerifyIDSignature verifies object ID signature.
func (o *Object) VerifyIDSignature() bool {
var idV2 refs.ObjectID
o.ID().WriteToV2(&idV2)
sig := o.Signature()
err := sigutil.VerifyData(
signatureV2.StableMarshalerWrapper{
SM: obj.ID().ToV2(),
SM: &idV2,
},
obj.Signature(),
sig,
)
return err == nil
}
// SetIDWithSignature sets object identifier and signature.
func SetIDWithSignature(key *ecdsa.PrivateKey, obj *Object) error {
func SetIDWithSignature(key ecdsa.PrivateKey, obj *Object) error {
if err := CalculateAndSetID(obj); err != nil {
return fmt.Errorf("could not set identifier: %w", err)
}
@ -137,7 +139,7 @@ func SetIDWithSignature(key *ecdsa.PrivateKey, obj *Object) error {
}
// SetVerificationFields calculates and sets all verification fields of the object.
func SetVerificationFields(key *ecdsa.PrivateKey, obj *Object) error {
func SetVerificationFields(key ecdsa.PrivateKey, obj *Object) error {
CalculateAndSetPayloadChecksum(obj)
return SetIDWithSignature(key, obj)
@ -156,10 +158,12 @@ func CheckVerificationFields(obj *Object) error {
return nil
}
var errInvalidSignature = errors.New("invalid signature")
// CheckHeaderVerificationFields checks all verification fields except payload.
func CheckHeaderVerificationFields(obj *Object) error {
if err := VerifyIDSignature(obj); err != nil {
return fmt.Errorf("invalid signature: %w", err)
if !obj.VerifyIDSignature() {
return errInvalidSignature
}
if err := VerifyID(obj); err != nil {