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invariable.vn.go
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invariable.vn.go
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package bk
import (
"fmt"
"github.com/hootuu/tome/ki"
"github.com/hootuu/tome/vn"
"github.com/hootuu/utils/errors"
"time"
)
const (
InvariableVNType Type = "hotu.vn"
InvariableVNVersion = DefaultVersion
)
type VNLead struct {
Vn vn.ID `json:"vn"`
Invariable BID `json:"invariable"`
}
func (lead *VNLead) S() string {
return fmt.Sprintf("vn=%s;invariable=%s;", lead.Vn, lead.Invariable)
}
type InvariableVN struct {
Type Type `json:"type"`
Version Version `json:"version"`
Vn vn.ID `json:"vn"`
Guardian *Ki `json:"guardian"`
Timestamp int64 `json:"timestamp"`
Signature []byte `json:"signature"`
}
func NewInvariableVN(originBID BID, vnID vn.ID, guardian *ki.Ki, tag []Tag) (*InvariableVN, *errors.Error) {
i := &InvariableVN{
Type: InvariableVNType,
Version: InvariableVNVersion,
Vn: vnID,
Guardian: KiOf(guardian),
Timestamp: time.Now().UnixMilli(),
}
var err *errors.Error
i.Signature, err = i.Sign(guardian.PRI)
if err != nil {
return nil, err
}
return i, nil
}
func (i *InvariableVN) getSignBuilder() *SignBuilder {
return NewSignBuilder().
Add("type", i.Type.S()).
Add("version", i.Version.S()).
Add("vn", i.Vn.S()).
Add("guardian", i.Guardian.ToString()).
Add("timestamp", fmt.Sprintf("%d", i.Timestamp))
}
func (i *InvariableVN) Sign(pri ki.PRI) ([]byte, *errors.Error) {
signBuilder := i.getSignBuilder()
signStr, err := signBuilder.Sign(pri)
if err != nil {
return nil, err
}
return []byte(signStr), nil
}
func (i *InvariableVN) SignVerify() (bool, *errors.Error) {
signBuilder := i.getSignBuilder()
return signBuilder.Verify(ki.PUB(string(i.Guardian.Pub)), string(i.Signature))
}
func (i *InvariableVN) GetType() Type {
return i.Type
}
func (i *InvariableVN) GetVersion() Version {
return i.Version
}
func (i *InvariableVN) GetVN() vn.ID {
return i.Vn
}
func (i *InvariableVN) GetSignature() []byte {
return i.Signature
}
func (i *InvariableVN) GetTimestamp() int64 {
return i.Timestamp
}