@celo/wallet-base
Version:
Wallet base implementation
165 lines • 7.11 kB
JavaScript
;
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step((generator = generator.apply(thisArg, _arguments || [])).next());
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};
Object.defineProperty(exports, "__esModule", { value: true });
exports.WalletBase = void 0;
const address_1 = require("@celo/base/lib/address");
const ethUtil = __importStar(require("@ethereumjs/util"));
const signing_utils_1 = require("./signing-utils");
class WalletBase {
constructor() {
// By creating the Signers in advance we can have a common pattern across wallets
// Each implementation is responsible for populating this map through addSigner
this.accountSigners = new Map();
}
/**
* Gets a list of accounts that have been registered
*/
getAccounts() {
return Array.from(this.accountSigners.keys());
}
/**
* Removes the account with the given address. Needs to be implemented by subclass, otherwise throws error
* @param _address The address of the account to be removed
*/
removeAccount(_address) {
throw new Error('removeAccount is not supported for this wallet');
}
/**
* Returns true if account has been registered
* @param address Account to check
*/
hasAccount(address) {
if (address) {
const normalizedAddress = (0, address_1.normalizeAddressWith0x)(address);
return this.accountSigners.has(normalizedAddress);
}
else {
return false;
}
}
/**
* Adds the account-signer set to the internal map
* @param address Account address
* @param signer Account signer
*/
addSigner(address, signer) {
const normalizedAddress = (0, address_1.normalizeAddressWith0x)(address);
this.accountSigners.set(normalizedAddress, signer);
}
/**
* Removes the account-signer
* @param address Account address
*/
removeSigner(address) {
const normalizedAddress = (0, address_1.normalizeAddressWith0x)(address);
this.accountSigners.delete(normalizedAddress);
}
/**
* Gets the signer based on the 'from' field in the tx body
* @param txParams Transaction to sign
*/
signTransaction(txParams) {
return __awaiter(this, void 0, void 0, function* () {
if (!txParams) {
throw new Error('No transaction object given!');
}
if (txParams.gasPrice && txParams.feeCurrency && txParams.feeCurrency !== '0x') {
throw new Error('Cannot serialize both "gasPrice" and "feeCurrency" together. To keep "feeCurrency", replace "gasPrice" with "maxFeePerGas". To keep "gasPrice" and send a type 0 transaction remove "feeCurrency"');
}
const rlpEncoded = (0, signing_utils_1.rlpEncodedTx)(txParams);
const addToV = rlpEncoded.type === 'ethereum-legacy'
? (0, signing_utils_1.chainIdTransformationForSigning)(txParams.chainId)
: 27;
// Get the signer from the 'from' field
const fromAddress = txParams.from.toString();
const signer = this.getSigner(fromAddress);
const signature = yield signer.signTransaction(addToV, rlpEncoded);
return (0, signing_utils_1.encodeTransaction)(rlpEncoded, signature);
});
}
/**
* Sign a personal Ethereum signed message.
* @param address Address of the account to sign with
* @param data Hex string message to sign
* @return Signature hex string (order: rsv)
*/
signPersonalMessage(address, data) {
return __awaiter(this, void 0, void 0, function* () {
if (!(0, address_1.isHexString)(data)) {
throw new Error('wallet@signPersonalMessage: Expected data has to be a hex string ');
}
const signer = this.getSigner(address);
const sig = yield signer.signPersonalMessage(data);
return ethUtil.toRpcSig(BigInt(sig.v), sig.r, sig.s);
});
}
/**
* Sign an EIP712 Typed Data message.
* @param address Address of the account to sign with
* @param typedData the typed data object
* @return Signature hex string (order: rsv)
*/
signTypedData(address, typedData) {
return __awaiter(this, void 0, void 0, function* () {
if (typedData === undefined) {
throw new Error('wallet@signTypedData: TypedData Missing');
}
const signer = this.getSigner(address);
const sig = yield signer.signTypedData(typedData);
return ethUtil.toRpcSig(BigInt(sig.v), sig.r, sig.s);
});
}
getSigner(address) {
const normalizedAddress = (0, address_1.normalizeAddressWith0x)(address);
if (!this.accountSigners.has(normalizedAddress)) {
throw new Error(`Could not find address ${normalizedAddress}`);
}
return this.accountSigners.get(normalizedAddress);
}
decrypt(address, ciphertext) {
return __awaiter(this, void 0, void 0, function* () {
const signer = this.getSigner(address);
return signer.decrypt(ciphertext);
});
}
/**
* Computes the shared secret (an ECDH key exchange object) between two accounts
*/
computeSharedSecret(address, publicKey) {
const signer = this.getSigner(address);
return signer.computeSharedSecret(publicKey);
}
}
exports.WalletBase = WalletBase;
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