Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
feat: print available accounts on startup
- Loading branch information
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,105 @@ | ||
| package hdaccount | ||
|
|
||
| import ( | ||
| "crypto/ecdsa" | ||
| "errors" | ||
|
|
||
| "github.com/btcsuite/btcd/btcutil/hdkeychain" | ||
| "github.com/btcsuite/btcd/chaincfg" | ||
| "github.com/ethereum/go-ethereum/accounts" | ||
| "github.com/ethereum/go-ethereum/common/hexutil" | ||
| "github.com/ethereum/go-ethereum/crypto" | ||
|
|
||
| "github.com/tyler-smith/go-bip39" | ||
| ) | ||
|
|
||
| type HdAccountStore struct { | ||
| mnemonic string | ||
| basePath accounts.DerivationPath | ||
| seed []byte | ||
| masterKey *hdkeychain.ExtendedKey | ||
| } | ||
|
|
||
| func NewHdAccountStore(mnemonic string, basePath accounts.DerivationPath) (*HdAccountStore, error) { | ||
| if mnemonic == "" { | ||
| return nil, errors.New("mnemonic is required") | ||
| } | ||
|
|
||
| if !bip39.IsMnemonicValid(mnemonic) { | ||
| return nil, errors.New("mnemonic is invalid") | ||
| } | ||
|
|
||
| seed, err := bip39.NewSeedWithErrorChecking(mnemonic, "") | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
|
|
||
| masterKey, err := hdkeychain.NewMaster(seed, &chaincfg.MainNetParams) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
|
|
||
| return &HdAccountStore{mnemonic: mnemonic, basePath: basePath, seed: seed, masterKey: masterKey}, nil | ||
| } | ||
|
|
||
| func (h *HdAccountStore) derivePrivateKeyAt(index uint32) (*ecdsa.PrivateKey, error) { | ||
|
|
||
| var key *hdkeychain.ExtendedKey | ||
| key = h.masterKey | ||
| for _, n := range h.derivationPathForIndex(index) { | ||
| derivedKey, err := key.Derive(n) | ||
|
|
||
| if err != nil { | ||
| return nil, err | ||
| } | ||
|
|
||
| key = derivedKey | ||
| } | ||
|
|
||
| privateKey, err := key.ECPrivKey() | ||
| privateKeyECDSA := privateKey.ToECDSA() | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
|
|
||
| return privateKeyECDSA, nil | ||
| } | ||
|
|
||
| func (h *HdAccountStore) derivePublicKeyAt(index uint32) (*ecdsa.PublicKey, error) { | ||
| privateKeyECDSA, err := h.derivePrivateKeyAt(index) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
|
|
||
| publicKey := privateKeyECDSA.Public() | ||
| publicKeyECDSA, ok := publicKey.(*ecdsa.PublicKey) | ||
| if !ok { | ||
| return nil, errors.New("failed to get public key") | ||
| } | ||
|
|
||
| return publicKeyECDSA, nil | ||
| } | ||
|
|
||
| func (h *HdAccountStore) PrivateKeyHexAt(index uint32) (string, error) { | ||
| privateKey, err := h.derivePrivateKeyAt(index) | ||
| if err != nil { | ||
| return "", err | ||
| } | ||
|
|
||
| return hexutil.Encode(crypto.FromECDSA(privateKey)), nil | ||
| } | ||
|
|
||
| func (h *HdAccountStore) AddressHexAt(index uint32) (string, error) { | ||
| publicKey, err := h.derivePublicKeyAt(index) | ||
| if err != nil { | ||
| return "", err | ||
| } | ||
|
|
||
| address := crypto.PubkeyToAddress(*publicKey) | ||
|
|
||
| return address.Hex(), nil | ||
| } | ||
|
|
||
| func (h *HdAccountStore) derivationPathForIndex(index uint32) accounts.DerivationPath { | ||
| return accounts.DerivationPath(append(h.basePath, index)) | ||
| } |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters