/** * Loads wallet data from the given protocol buffer and inserts it into the given Wallet object. * This is primarily useful when you wish to pre-register extension objects. Note that if loading * fails the provided Wallet object may be in an indeterminate state and should be thrown away. * * @throws IOException if there is a problem reading the stream. * @throws IllegalArgumentException if the wallet is corrupt. */ public void readWallet(Protos.Wallet walletProto, Wallet wallet) throws IOException { // TODO: This method should throw more specific exception types than IllegalArgumentException. // Read the scrypt parameters that specify how encryption and decryption is performed. if (walletProto.hasEncryptionParameters()) { Protos.ScryptParameters encryptionParameters = walletProto.getEncryptionParameters(); wallet.setKeyCrypter(new KeyCrypterScrypt(encryptionParameters)); } if (walletProto.hasDescription()) { wallet.setDescription(walletProto.getDescription()); } // Read all keys for (Protos.Key keyProto : walletProto.getKeyList()) { if (!(keyProto.getType() == Protos.Key.Type.ORIGINAL || keyProto.getType() == Protos.Key.Type.ENCRYPTED_SCRYPT_AES)) { throw new IllegalArgumentException( "Unknown key type in wallet, type = " + keyProto.getType()); } byte[] privKey = keyProto.hasPrivateKey() ? keyProto.getPrivateKey().toByteArray() : null; EncryptedPrivateKey encryptedPrivateKey = null; if (keyProto.hasEncryptedPrivateKey()) { Protos.EncryptedPrivateKey encryptedPrivateKeyProto = keyProto.getEncryptedPrivateKey(); encryptedPrivateKey = new EncryptedPrivateKey( encryptedPrivateKeyProto.getInitialisationVector().toByteArray(), encryptedPrivateKeyProto.getEncryptedPrivateKey().toByteArray()); } byte[] pubKey = keyProto.hasPublicKey() ? keyProto.getPublicKey().toByteArray() : null; ECKey ecKey; final KeyCrypter keyCrypter = wallet.getKeyCrypter(); if (keyCrypter != null && keyCrypter.getUnderstoodEncryptionType() != EncryptionType.UNENCRYPTED) { // If the key is encrypted construct an ECKey using the encrypted private key bytes. ecKey = new ECKey(encryptedPrivateKey, pubKey, keyCrypter); } else { // Construct an unencrypted private key. ecKey = new ECKey(privKey, pubKey); } ecKey.setCreationTimeSeconds((keyProto.getCreationTimestamp() + 500) / 1000); wallet.addKey(ecKey); } // Read all transactions and insert into the txMap. for (Protos.Transaction txProto : walletProto.getTransactionList()) { readTransaction(txProto, wallet.getParams()); } // Update transaction outputs to point to inputs that spend them for (Protos.Transaction txProto : walletProto.getTransactionList()) { WalletTransaction wtx = connectTransactionOutputs(txProto); wallet.addWalletTransaction(wtx); } // Update the lastBlockSeenHash. if (!walletProto.hasLastSeenBlockHash()) { wallet.setLastBlockSeenHash(null); } else { wallet.setLastBlockSeenHash(byteStringToHash(walletProto.getLastSeenBlockHash())); } if (!walletProto.hasLastSeenBlockHeight()) { wallet.setLastBlockSeenHeight(-1); } else { wallet.setLastBlockSeenHeight(walletProto.getLastSeenBlockHeight()); } loadExtensions(wallet, walletProto); if (walletProto.hasVersion()) { wallet.setVersion(walletProto.getVersion()); } // Make sure the object can be re-used to read another wallet without corruption. txMap.clear(); }