@okxweb3/coin-ethereum
Version:
An Ethereum SDK for building Web3 wallets and applications.
59 lines • 2.93 kB
JavaScript
;
var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
var desc = Object.getOwnPropertyDescriptor(m, k);
if (!desc || ("get" in desc ? !m.__esModule : desc.writable || desc.configurable)) {
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Object.defineProperty(o, "default", { enumerable: true, value: v });
}) : function(o, v) {
o["default"] = v;
});
var __importStar = (this && this.__importStar) || function (mod) {
if (mod && mod.__esModule) return mod;
var result = {};
if (mod != null) for (var k in mod) if (k !== "default" && Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
__setModuleDefault(result, mod);
return result;
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.hashMessage = exports.MessageTypes = void 0;
const signUtil = __importStar(require("./lib/sdk/eth-sig-util"));
const ethUtil = __importStar(require("./lib/sdk/ethereumjs-util"));
const coin_base_1 = require("@okxweb3/coin-base");
var MessageTypes;
(function (MessageTypes) {
MessageTypes[MessageTypes["ETH_SIGN"] = 0] = "ETH_SIGN";
MessageTypes[MessageTypes["PERSONAL_SIGN"] = 1] = "PERSONAL_SIGN";
MessageTypes[MessageTypes["TYPE_DATA_V1"] = 2] = "TYPE_DATA_V1";
MessageTypes[MessageTypes["TYPE_DATA_V3"] = 3] = "TYPE_DATA_V3";
MessageTypes[MessageTypes["TYPE_DATA_V4"] = 4] = "TYPE_DATA_V4";
})(MessageTypes = exports.MessageTypes || (exports.MessageTypes = {}));
const hashMessage = (messageType, message) => {
switch (messageType) {
case MessageTypes.ETH_SIGN:
return ethUtil.addHexPrefix(message);
case MessageTypes.PERSONAL_SIGN: {
const buffer = coin_base_1.base.isHexString(message)
? coin_base_1.base.fromHex(message)
: Buffer.from(message);
return ethUtil.addHexPrefix(ethUtil.hashPersonalMessage(buffer).toString('hex'));
}
case MessageTypes.TYPE_DATA_V1:
return ethUtil.addHexPrefix(signUtil.typedSignatureHash(JSON.parse(message)));
case MessageTypes.TYPE_DATA_V3:
return ethUtil.addHexPrefix(signUtil.TypedDataUtils.eip712Hash(JSON.parse(message), signUtil.SignTypedDataVersion.V3).toString('hex'));
case MessageTypes.TYPE_DATA_V4:
return ethUtil.addHexPrefix(signUtil.TypedDataUtils.eip712Hash(JSON.parse(message), signUtil.SignTypedDataVersion.V4).toString('hex'));
default:
throw new Error(`Invalid messageType: ${messageType}`);
}
};
exports.hashMessage = hashMessage;
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