ceremonyclient/node/config/config.go
2023-09-09 12:43:55 +02:00

212 lines
5.0 KiB
Go

package config
import (
"crypto/aes"
"crypto/cipher"
"crypto/rand"
"encoding/hex"
"fmt"
"io/fs"
"os"
"path/filepath"
"github.com/cloudflare/circl/sign/ed448"
"github.com/libp2p/go-libp2p/core/crypto"
"github.com/pkg/errors"
"gopkg.in/yaml.v2"
)
type Config struct {
Key *KeyConfig `yaml:"key"`
P2P *P2PConfig `yaml:"p2p"`
Engine *EngineConfig `yaml:"engine"`
DB *DBConfig `yaml:"db"`
LogFile string `yaml:"logFile"`
}
func NewConfig(configPath string) (*Config, error) {
file, err := os.Open(configPath)
if err != nil {
return nil, err
}
defer file.Close()
d := yaml.NewDecoder(file)
config := &Config{}
if err := d.Decode(&config); err != nil {
return nil, err
}
return config, nil
}
func LoadConfig(configPath string, proverKey string) (*Config, error) {
info, err := os.Stat(configPath)
if os.IsNotExist(err) {
fmt.Println("Creating config directory " + configPath)
if err = os.Mkdir(configPath, fs.FileMode(0700)); err != nil {
panic(err)
}
} else {
if err != nil {
panic(err)
}
if !info.IsDir() {
panic(configPath + " is not a directory")
}
}
file, err := os.Open(filepath.Join(configPath, "config.yml"))
saveDefaults := false
if err != nil {
if errors.Is(err, os.ErrNotExist) {
saveDefaults = true
} else {
return nil, err
}
}
config := &Config{
DB: &DBConfig{
Path: configPath + "/store",
},
Key: &KeyConfig{
KeyStore: KeyManagerTypeFile,
KeyStoreFile: &KeyStoreFileConfig{
Path: filepath.Join(configPath, "keys.yml"),
},
},
P2P: &P2PConfig{
ListenMultiaddr: "/ip4/0.0.0.0/udp/8336/quic",
BootstrapPeers: []string{
"/dns/bootstrap.quilibrium.com/udp/8336/quic/p2p/QmUhm9iZVruSxyavjoPLCfuoRG94SGQEkfxEEoukEZmD5B",
"/ip4/204.186.74.47/udp/8317/quic/p2p/Qmd233pLUDvcDW3ama27usfbG1HxKNh1V9dmWVW1SXp1pd",
"/ip4/13.237.250.230/udp/8317/quic/p2p/QmazMeSUA9HPLuj53w56k6GUq3xVny3pHtosUZndejJeai",
"/ip4/13.236.219.103/udp/8317/quic/p2p/QmcJqNsJLNfxkAxeJijfLppiNQERaeFuwsbg3BGScKqrfh",
"/ip4/204.186.74.46/udp/8316/quic/p2p/QmeqBjm3iX7sdTieyto1gys5ruQrQNPKfaTGcVQQWJPYDV",
"/ip4/186.233.184.181/udp/8336/quic/p2p/QmW6QDvKuYqJYYMP5tMZSp12X3nexywK28tZNgqtqNpEDL",
"/dns/quil.zanshindojo.org/udp/8336/quic/p2p/QmXbbmtS5D12rEc4HWiHWr6e83SCE4jeThPP4VJpAQPvXq",
"/ip4/195.15.213.171/udp/8336/quic/p2p/Qme5PeqPSNRAvgWYbKoW9yy8S9tUwx1RBGaJ4ByE1a4rnu",
"/ip4/144.76.104.93/udp/8336/quic/p2p/QmZejZ8DBGQ6foX9recW73GA6TqL6hCMX9ETWWW1Fb8xtx",
},
PeerPrivKey: "",
},
Engine: &EngineConfig{
ProvingKeyId: "default-proving-key",
Filter: "ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff",
GenesisSeed: "00",
MaxFrames: -1,
PendingCommitWorkers: 4,
},
}
if saveDefaults {
fmt.Println("Generating default config...")
fmt.Println("Generating random host key...")
privkey, _, err := crypto.GenerateEd448Key(rand.Reader)
if err != nil {
panic(err)
}
hostKey, err := privkey.Raw()
if err != nil {
panic(err)
}
config.P2P.PeerPrivKey = hex.EncodeToString(hostKey)
fmt.Println("Generating keystore key...")
keystoreKey := make([]byte, 32)
if _, err := rand.Read(keystoreKey); err != nil {
panic(err)
}
config.Key.KeyStoreFile.EncryptionKey = hex.EncodeToString(keystoreKey)
fmt.Println("Saving config...")
if err = SaveConfig(configPath, config); err != nil {
panic(err)
}
keyfile, err := os.OpenFile(
filepath.Join(configPath, "keys.yml"),
os.O_CREATE|os.O_RDWR,
fs.FileMode(0700),
)
if err != nil {
panic(err)
}
if proverKey != "" {
provingKey, err := hex.DecodeString(proverKey)
if err != nil {
panic(err)
}
iv := [12]byte{}
rand.Read(iv[:])
aesCipher, err := aes.NewCipher(keystoreKey)
if err != nil {
return nil, errors.Wrap(err, "could not construct cipher")
}
gcm, err := cipher.NewGCM(aesCipher)
if err != nil {
return nil, errors.Wrap(err, "could not construct block")
}
ciphertext := gcm.Seal(nil, iv[:], provingKey, nil)
ciphertext = append(append([]byte{}, iv[:]...), ciphertext...)
provingPubKey := ed448.PrivateKey(provingKey).Public().(ed448.PublicKey)
keyfile.Write([]byte(
"default-proving-key:\n id: default-proving-key\n" +
" type: 0\n privateKey: " + hex.EncodeToString(ciphertext) + "\n" +
" publicKey: " + hex.EncodeToString(provingPubKey) + "\n"))
} else {
keyfile.Write([]byte("null:\n"))
}
keyfile.Close()
if file, err = os.Open(
filepath.Join(configPath, "config.yml"),
); err != nil {
panic(err)
}
}
defer file.Close()
d := yaml.NewDecoder(file)
if err := d.Decode(&config); err != nil {
return nil, err
}
return config, nil
}
func SaveConfig(configPath string, config *Config) error {
file, err := os.OpenFile(
filepath.Join(configPath, "config.yml"),
os.O_CREATE|os.O_RDWR,
os.FileMode(0600),
)
if err != nil {
return err
}
defer file.Close()
d := yaml.NewEncoder(file)
if err := d.Encode(config); err != nil {
return err
}
return nil
}