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node_signature.go
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node_signature.go
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// Copyright (c) 2022 Gobalsky Labs Limited
//
// Use of this software is governed by the Business Source License included
// in the LICENSE.DATANODE file and at https://www.mariadb.com/bsl11.
//
// Change Date: 18 months from the later of the date of the first publicly
// available Distribution of this version of the repository, and 25 June 2022.
//
// On the date above, in accordance with the Business Source License, use
// of this software will be governed by version 3 or later of the GNU General
// Public License.
package entities
import (
"encoding/hex"
"encoding/json"
"fmt"
"time"
v2 "code.vegaprotocol.io/vega/protos/data-node/api/v2"
commandspb "code.vegaprotocol.io/vega/protos/vega/commands/v1"
)
type _NodeSignature struct{}
type NodeSignatureID = ID[_NodeSignature]
type NodeSignature struct {
ResourceID NodeSignatureID
Sig []byte
Kind NodeSignatureKind
TxHash TxHash
VegaTime time.Time
}
// packNodeSignatures packs a list signatures into the form form:
// 0x + sig1 + sig2 + ... + sigN in hex encoded form
// If the list is empty, return an empty string instead.
func PackNodeSignatures(signatures []NodeSignature) string {
pack := ""
if len(signatures) > 0 {
pack = "0x"
}
for _, v := range signatures {
pack = fmt.Sprintf("%v%v", pack, hex.EncodeToString(v.Sig))
}
return pack
}
func NodeSignatureFromProto(ns *commandspb.NodeSignature, txHash TxHash, vegaTime time.Time) (*NodeSignature, error) {
return &NodeSignature{
ResourceID: NodeSignatureID(ns.Id),
Sig: ns.Sig,
Kind: NodeSignatureKind(ns.Kind),
TxHash: txHash,
VegaTime: vegaTime,
}, nil
}
func (w NodeSignature) ToProto() *commandspb.NodeSignature {
return &commandspb.NodeSignature{
Id: w.ResourceID.String(),
Sig: w.Sig,
Kind: commandspb.NodeSignatureKind(w.Kind),
}
}
func (w NodeSignature) Cursor() *Cursor {
cursor := NodeSignatureCursor{
ResourceID: w.ResourceID,
Sig: w.Sig,
}
return NewCursor(cursor.String())
}
func (w NodeSignature) ToProtoEdge(_ ...any) (*v2.NodeSignatureEdge, error) {
return &v2.NodeSignatureEdge{
Node: w.ToProto(),
Cursor: w.Cursor().Encode(),
}, nil
}
type NodeSignatureCursor struct {
ResourceID NodeSignatureID `json:"resource_id"`
Sig []byte `json:"sig"`
}
func (c NodeSignatureCursor) String() string {
bs, err := json.Marshal(c)
// Should never error, so panic if it does
if err != nil {
panic(fmt.Errorf("could not marshal node signature cursor: %w", err))
}
return string(bs)
}
func (c *NodeSignatureCursor) Parse(cursorString string) error {
if cursorString == "" {
return nil
}
return json.Unmarshal([]byte(cursorString), c)
}