126 lines
2.8 KiB
Go
126 lines
2.8 KiB
Go
package persistence
|
|
|
|
import (
|
|
"crypto/ecdsa"
|
|
"database/sql"
|
|
"errors"
|
|
|
|
"go.uber.org/zap"
|
|
|
|
"github.com/ethereum/go-ethereum/crypto"
|
|
)
|
|
|
|
// DBStore is a MessageProvider that has a *sql.DB connection
|
|
type ProtectedTopicsStore struct {
|
|
db *sql.DB
|
|
log *zap.Logger
|
|
|
|
insertStmt *sql.Stmt
|
|
fetchPrivKeyStmt *sql.Stmt
|
|
deleteStmt *sql.Stmt
|
|
}
|
|
|
|
// Creates a new DB store using the db specified via options.
|
|
// It will create a messages table if it does not exist and
|
|
// clean up records according to the retention policy used
|
|
func NewProtectedTopicsStore(log *zap.Logger, db *sql.DB) (*ProtectedTopicsStore, error) {
|
|
insertStmt, err := db.Prepare("INSERT OR REPLACE INTO pubsubtopic_signing_key (topic, priv_key, pub_key) VALUES (?, ?, ?)")
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
fetchPrivKeyStmt, err := db.Prepare("SELECT priv_key FROM pubsubtopic_signing_key WHERE topic = ?")
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
deleteStmt, err := db.Prepare("DELETE FROM pubsubtopic_signing_key WHERE topic = ?")
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
result := new(ProtectedTopicsStore)
|
|
result.log = log.Named("protected-topics-store")
|
|
result.db = db
|
|
result.insertStmt = insertStmt
|
|
result.fetchPrivKeyStmt = fetchPrivKeyStmt
|
|
result.deleteStmt = deleteStmt
|
|
|
|
return result, nil
|
|
}
|
|
|
|
func (p *ProtectedTopicsStore) Close() error {
|
|
err := p.insertStmt.Close()
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
return p.fetchPrivKeyStmt.Close()
|
|
}
|
|
|
|
func (p *ProtectedTopicsStore) Insert(pubsubTopic string, privKey *ecdsa.PrivateKey, publicKey *ecdsa.PublicKey) error {
|
|
var privKeyBytes []byte
|
|
if privKey != nil {
|
|
privKeyBytes = crypto.FromECDSA(privKey)
|
|
}
|
|
|
|
pubKeyBytes := crypto.FromECDSAPub(publicKey)
|
|
|
|
_, err := p.insertStmt.Exec(pubsubTopic, privKeyBytes, pubKeyBytes)
|
|
|
|
return err
|
|
}
|
|
|
|
func (p *ProtectedTopicsStore) Delete(pubsubTopic string) error {
|
|
_, err := p.deleteStmt.Exec(pubsubTopic)
|
|
return err
|
|
}
|
|
|
|
func (p *ProtectedTopicsStore) FetchPrivateKey(topic string) (privKey *ecdsa.PrivateKey, err error) {
|
|
var privKeyBytes []byte
|
|
err = p.fetchPrivKeyStmt.QueryRow(topic).Scan(&privKeyBytes)
|
|
if err != nil {
|
|
if errors.Is(err, sql.ErrNoRows) {
|
|
return nil, nil
|
|
}
|
|
return nil, err
|
|
}
|
|
|
|
return crypto.ToECDSA(privKeyBytes)
|
|
}
|
|
|
|
type ProtectedTopic struct {
|
|
PubKey *ecdsa.PublicKey
|
|
Topic string
|
|
}
|
|
|
|
func (p *ProtectedTopicsStore) ProtectedTopics() ([]ProtectedTopic, error) {
|
|
rows, err := p.db.Query("SELECT pub_key, topic FROM pubsubtopic_signing_key")
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
defer rows.Close()
|
|
|
|
var result []ProtectedTopic
|
|
for rows.Next() {
|
|
var pubKeyBytes []byte
|
|
var topic string
|
|
err := rows.Scan(&pubKeyBytes, &topic)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
pubk, err := crypto.UnmarshalPubkey(pubKeyBytes)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
result = append(result, ProtectedTopic{
|
|
PubKey: pubk,
|
|
Topic: topic,
|
|
})
|
|
}
|
|
|
|
return result, nil
|
|
}
|