github.com/ConsenSys/Quorum@v20.10.0+incompatible/accounts/pluggable/wallet.go (about)

     1  package pluggable
     2  
     3  import (
     4  	"context"
     5  	"math/big"
     6  	"sync"
     7  	"time"
     8  
     9  	"github.com/ethereum/go-ethereum"
    10  	"github.com/ethereum/go-ethereum/accounts"
    11  	"github.com/ethereum/go-ethereum/common"
    12  	"github.com/ethereum/go-ethereum/core/types"
    13  	"github.com/ethereum/go-ethereum/crypto"
    14  	plugin "github.com/ethereum/go-ethereum/plugin/account"
    15  )
    16  
    17  type wallet struct {
    18  	url           accounts.URL
    19  	mu            sync.Mutex
    20  	pluginService plugin.Service
    21  }
    22  
    23  func (w *wallet) setPluginService(s plugin.Service) error {
    24  	w.mu.Lock()
    25  	defer w.mu.Unlock()
    26  
    27  	w.pluginService = s
    28  
    29  	return nil
    30  }
    31  
    32  func (w *wallet) URL() accounts.URL {
    33  	return w.url
    34  }
    35  
    36  func (w *wallet) Status() (string, error) {
    37  	return w.pluginService.Status(context.Background())
    38  }
    39  
    40  func (w *wallet) Open(passphrase string) error {
    41  	return w.pluginService.Open(context.Background(), passphrase)
    42  }
    43  
    44  func (w *wallet) Close() error {
    45  	return w.pluginService.Close(context.Background())
    46  }
    47  
    48  func (w *wallet) Accounts() []accounts.Account {
    49  	return w.pluginService.Accounts(context.Background())
    50  }
    51  
    52  func (w *wallet) Contains(account accounts.Account) bool {
    53  	return w.pluginService.Contains(context.Background(), account)
    54  }
    55  
    56  func (w *wallet) Derive(_ accounts.DerivationPath, _ bool) (accounts.Account, error) {
    57  	return accounts.Account{}, accounts.ErrNotSupported
    58  }
    59  
    60  func (w *wallet) SelfDerive(_ []accounts.DerivationPath, _ ethereum.ChainStateReader) {}
    61  
    62  func (w *wallet) SignData(account accounts.Account, _ string, data []byte) ([]byte, error) {
    63  	return w.pluginService.Sign(context.Background(), account, crypto.Keccak256(data))
    64  }
    65  
    66  func (w *wallet) SignDataWithPassphrase(account accounts.Account, passphrase, _ string, data []byte) ([]byte, error) {
    67  	return w.pluginService.UnlockAndSign(context.Background(), account, crypto.Keccak256(data), passphrase)
    68  }
    69  
    70  func (w *wallet) SignText(account accounts.Account, text []byte) ([]byte, error) {
    71  	return w.pluginService.Sign(context.Background(), account, accounts.TextHash(text))
    72  }
    73  
    74  func (w *wallet) SignTextWithPassphrase(account accounts.Account, passphrase string, text []byte) ([]byte, error) {
    75  	return w.pluginService.UnlockAndSign(context.Background(), account, accounts.TextHash(text), passphrase)
    76  }
    77  
    78  func (w *wallet) SignTx(account accounts.Account, tx *types.Transaction, chainID *big.Int) (*types.Transaction, error) {
    79  	toSign, signer := prepareTxForSign(tx, chainID)
    80  
    81  	sig, err := w.pluginService.Sign(context.Background(), account, toSign.Bytes())
    82  	if err != nil {
    83  		return nil, err
    84  	}
    85  
    86  	return tx.WithSignature(signer, sig)
    87  }
    88  
    89  func (w *wallet) SignTxWithPassphrase(account accounts.Account, passphrase string, tx *types.Transaction, chainID *big.Int) (*types.Transaction, error) {
    90  	toSign, signer := prepareTxForSign(tx, chainID)
    91  
    92  	sig, err := w.pluginService.UnlockAndSign(context.Background(), account, toSign.Bytes(), passphrase)
    93  	if err != nil {
    94  		return nil, err
    95  	}
    96  
    97  	return tx.WithSignature(signer, sig)
    98  }
    99  
   100  func (w *wallet) timedUnlock(account accounts.Account, password string, duration time.Duration) error {
   101  	return w.pluginService.TimedUnlock(context.Background(), account, password, duration)
   102  }
   103  
   104  func (w *wallet) lock(account accounts.Account) error {
   105  	return w.pluginService.Lock(context.Background(), account)
   106  }
   107  
   108  func (w *wallet) newAccount(newAccountConfig interface{}) (accounts.Account, error) {
   109  	return w.pluginService.NewAccount(context.Background(), newAccountConfig)
   110  }
   111  
   112  func (w *wallet) importRawKey(rawKey string, newAccountConfig interface{}) (accounts.Account, error) {
   113  	return w.pluginService.ImportRawKey(context.Background(), rawKey, newAccountConfig)
   114  }
   115  
   116  // prepareTxForSign determines which Signer to use for the given tx and chainID, and returns the Signer's hash of the tx and the Signer itself
   117  func prepareTxForSign(tx *types.Transaction, chainID *big.Int) (common.Hash, types.Signer) {
   118  	var s types.Signer
   119  
   120  	if tx.IsPrivate() {
   121  		s = types.QuorumPrivateTxSigner{}
   122  	} else if chainID == nil {
   123  		s = types.HomesteadSigner{}
   124  	} else {
   125  		s = types.NewEIP155Signer(chainID)
   126  	}
   127  
   128  	return s.Hash(tx), s
   129  }