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package models
import (
"bytes"
"crypto/rand"
"crypto/rsa"
"encoding/gob"
"fmt"
"time"
"git.capotej.com/capotej/communique/config"
"github.com/dgraph-io/badger/v3"
)
type Keypair struct {
Handler config.Handler
PrivateKey rsa.PrivateKey
CreatedAt time.Time
}
// used for lookup purposes (count, collect, find)
func NewKeypair(h config.Handler) *Keypair {
aso := &Keypair{Handler: h}
return aso
}
func CreateKeypair(h config.Handler) (*Keypair, error) {
key, err := rsa.GenerateKey(rand.Reader, 2048)
if err != nil {
return nil, fmt.Errorf("could not generate private key for %s: %w", h.Name, err)
}
aso := &Keypair{
PrivateKey: *key,
Handler: h,
}
return aso, nil
}
func (a *Keypair) Name() string {
return "Keypair"
}
func (a *Keypair) Key() string {
keyBase := fmt.Sprintf("keypairs:%s", a.Handler.Name)
return keyBase
}
func (a *Keypair) DedupKey() string {
return a.Key()
}
func (a *Keypair) Keybase() string {
return a.Key()
}
func (a *Keypair) SaveDedup(txn *badger.Txn) error {
txn.Discard() // nothing to do here
return nil
}
func (a *Keypair) Save(txn *badger.Txn) error {
if a.PrivateKey.D == nil {
return fmt.Errorf("private key not set")
}
var network bytes.Buffer
enc := gob.NewEncoder(&network)
err := enc.Encode(a)
if err != nil {
return fmt.Errorf("could not encode keypair: %w", err)
}
e := badger.NewEntry([]byte(a.Key()), network.Bytes())
return txn.SetEntry(e)
}
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