package crypto
import (
"fmt"
"io/ioutil"
"strings"
"github.com/ethereum/go-ethereum/ethutil"
)
type KeyRing struct {
keys []*KeyPair
}
func NewKeyRing() *KeyRing {
return &KeyRing{}
}
func (k *KeyRing) AddKeyPair(keyPair *KeyPair) {
k.keys = append(k.keys, keyPair)
}
func (k *KeyRing) GetKeyPair(i int) *KeyPair {
if len(k.keys) > i {
return k.keys[i]
}
return nil
}
func (k *KeyRing) Empty() bool {
return k.Len() == 0
}
func (k *KeyRing) Len() int {
return len(k.keys)
}
func (k *KeyRing) Each(f func(*KeyPair)) {
for _, keyPair := range k.keys {
f(keyPair)
}
}
func NewGeneratedKeyRing(len int) *KeyRing {
keyRing := NewKeyRing()
for i := 0; i < len; i++ {
keyRing.AddKeyPair(GenerateNewKeyPair())
}
return keyRing
}
func NewKeyRingFromFile(secfile string) (*KeyRing, error) {
var content []byte
var err error
content, err = ioutil.ReadFile(secfile)
if err != nil {
return nil, err
}
keyRing, err := NewKeyRingFromString(string(content))
if err != nil {
return nil, err
}
return keyRing, nil
}
func NewKeyRingFromString(content string) (*KeyRing, error) {
secretStrings := strings.Split(content, "\n")
var secrets [][]byte
for _, secretString := range secretStrings {
secret := secretString
words := strings.Split(secretString, " ")
if len(words) == 24 {
secret = MnemonicDecode(words)
} else if len(words) != 1 {
return nil, fmt.Errorf("Unrecognised key format")
}
if len(secret) != 0 {
secrets = append(secrets, ethutil.Hex2Bytes(secret))
}
}
return NewKeyRingFromSecrets(secrets)
}
func NewKeyRingFromSecrets(secs [][]byte) (*KeyRing, error) {
keyRing := NewKeyRing()
for _, sec := range secs {
keyPair, err := NewKeyPairFromSec(sec)
if err != nil {
return nil, err
}
keyRing.AddKeyPair(keyPair)
}
return keyRing, nil
}
func NewKeyRingFromBytes(data []byte) (*KeyRing, error) {
var secrets [][]byte
it := ethutil.NewValueFromBytes(data).NewIterator()
for it.Next() {
secret := it.Value().Bytes()
secrets = append(secrets, secret)
}
keyRing, err := NewKeyRingFromSecrets(secrets)
if err != nil {
return nil, err
}
return keyRing, nil
}
func (k *KeyRing) RlpEncode() []byte {
return k.RlpValue().Encode()
}
func (k *KeyRing) RlpValue() *ethutil.Value {
v := ethutil.EmptyValue()
k.Each(func(keyPair *KeyPair) {
v.Append(keyPair.RlpValue())
})
return v
}
