@ambire/signature-validator
Version:
Signature validation library aiming to verify all different signature types for Ethereum and other EVM chains, including smart contract signatures (EIP 1271) and typed data (EIP 712)
85 lines (84 loc) • 8.54 kB
JavaScript
;
var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
return new (P || (P = Promise))(function (resolve, reject) {
function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
step((generator = generator.apply(thisArg, _arguments || [])).next());
});
};
var __generator = (this && this.__generator) || function (thisArg, body) {
var _ = { label: 0, sent: function() { if (t[0] & 1) throw t[1]; return t[1]; }, trys: [], ops: [] }, f, y, t, g;
return g = { next: verb(0), "throw": verb(1), "return": verb(2) }, typeof Symbol === "function" && (g[Symbol.iterator] = function() { return this; }), g;
function verb(n) { return function (v) { return step([n, v]); }; }
function step(op) {
if (f) throw new TypeError("Generator is already executing.");
while (g && (g = 0, op[0] && (_ = 0)), _) try {
if (f = 1, y && (t = op[0] & 2 ? y["return"] : op[0] ? y["throw"] || ((t = y["return"]) && t.call(y), 0) : y.next) && !(t = t.call(y, op[1])).done) return t;
if (y = 0, t) op = [op[0] & 2, t.value];
switch (op[0]) {
case 0: case 1: t = op; break;
case 4: _.label++; return { value: op[1], done: false };
case 5: _.label++; y = op[1]; op = [0]; continue;
case 7: op = _.ops.pop(); _.trys.pop(); continue;
default:
if (!(t = _.trys, t = t.length > 0 && t[t.length - 1]) && (op[0] === 6 || op[0] === 2)) { _ = 0; continue; }
if (op[0] === 3 && (!t || (op[1] > t[0] && op[1] < t[3]))) { _.label = op[1]; break; }
if (op[0] === 6 && _.label < t[1]) { _.label = t[1]; t = op; break; }
if (t && _.label < t[2]) { _.label = t[2]; _.ops.push(op); break; }
if (t[2]) _.ops.pop();
_.trys.pop(); continue;
}
op = body.call(thisArg, _);
} catch (e) { op = [6, e]; y = 0; } finally { f = t = 0; }
if (op[0] & 5) throw op[1]; return { value: op[0] ? op[1] : void 0, done: true };
}
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.verifyMessage = verifyMessage;
var ethers_1 = require("ethers");
var VALIDATOR_1271_ABI = [
"function isValidSignature(bytes32 hash, bytes signature) view returns (bytes4)",
];
// Outputted by ./node_modules/solc/solc.js contracts/DeploylessUniversalSigValidator.sol --bin --optimize --optimize-runs=1
var universalValidator = '0x608060405234801561000f575f5ffd5b506040516106fb3803806106fb83398101604081905261002e91610559565b5f61003a848484610045565b9050805f526001601ff35b5f5f846001600160a01b0316803b806020016040519081016040528181525f908060200190933c90507f649264926492649264926492649264926492649264926492649264926492649261009884610470565b036101f9575f606080858060200190518101906100b591906105ae565b865192955090935091505f03610174575f836001600160a01b0316836040516100de919061060f565b5f604051808303815f865af19150503d805f8114610117576040519150601f19603f3d011682016040523d82523d5f602084013e61011c565b606091505b50509050806101725760405162461bcd60e51b815260206004820152601e60248201527f5369676e617475726556616c696461746f723a206465706c6f796d656e74000060448201526064015b60405180910390fd5b505b604051630b135d3f60e11b808252906001600160a01b038a1690631626ba7e906101a4908b908690600401610625565b602060405180830381865afa1580156101bf573d5f5f3e3d5ffd5b505050506040513d601f19601f820116820180604052508101906101e39190610661565b6001600160e01b03191614945050505050610469565b8051156102e3575f5f866001600160a01b0316631626ba7e60e01b8787604051602401610227929190610625565b60408051601f198184030181529181526020820180516001600160e01b03166001600160e01b0319909416939093179092529051610265919061060f565b5f60405180830381855afa9150503d805f811461029d576040519150601f19603f3d011682016040523d82523d5f602084013e6102a2565b606091505b50915091508180156102b5575080516020145b156102e057630b135d3f60e11b6102cb82610688565b6001600160e01b031916149350505050610469565b50505b82516041146103475760405162461bcd60e51b815260206004820152603a60248201525f5160206106db5f395f51905f5260448201527f3a20696e76616c6964207369676e6174757265206c656e6774680000000000006064820152608401610169565b61034f610487565b50602083015160408085015185518693925f918591908110610373576103736106c6565b016020015160f81c9050601b811480159061039257508060ff16601c14155b156103f25760405162461bcd60e51b815260206004820152603b60248201525f5160206106db5f395f51905f5260448201527f3a20696e76616c6964207369676e617475726520762076616c756500000000006064820152608401610169565b604080515f8152602081018083528a905260ff83169181019190915260608101849052608081018390526001600160a01b038a169060019060a0016020604051602081039080840390855afa15801561044d573d5f5f3e3d5ffd5b505050602060405103516001600160a01b031614955050505050505b9392505050565b5f60208251101561047f575f5ffd5b508051015190565b60405180606001604052806003906020820280368337509192915050565b6001600160a01b03811681146104b9575f5ffd5b50565b634e487b7160e01b5f52604160045260245ffd5b5f82601f8301126104df575f5ffd5b81516001600160401b038111156104f8576104f86104bc565b604051601f8201601f19908116603f011681016001600160401b0381118282101715610526576105266104bc565b60405281815283820160200185101561053d575f5ffd5b8160208501602083015e5f918101602001919091529392505050565b5f5f5f6060848603121561056b575f5ffd5b8351610576816104a5565b6020850151604086015191945092506001600160401b03811115610598575f5ffd5b6105a4868287016104d0565b9150509250925092565b5f5f5f606084860312156105c0575f5ffd5b83516105cb816104a5565b60208501519093506001600160401b038111156105e6575f5ffd5b6105f2868287016104d0565b604086015190935090506001600160401b03811115610598575f5ffd5b5f82518060208501845e5f920191825250919050565b828152604060208201525f82518060408401528060208501606085015e5f606082850101526060601f19601f8301168401019150509392505050565b5f60208284031215610671575f5ffd5b81516001600160e01b031981168114610469575f5ffd5b805160208201516001600160e01b03198116919060048210156106bf576001600160e01b0319600483900360031b81901b82161692505b5050919050565b634e487b7160e01b5f52603260045260245ffdfe5369676e617475726556616c696461746f72237265636f7665725369676e6572';
/**
* NOTE: you only need to pass one of: typedData, finalDigest, message
*/
function verifyMessage(_a) {
return __awaiter(this, arguments, void 0, function (_b) {
var coder, callResult;
var provider = _b.provider, signer = _b.signer, signature = _b.signature, message = _b.message, typedData = _b.typedData, finalDigest = _b.finalDigest;
return __generator(this, function (_c) {
switch (_c.label) {
case 0:
if (message) {
finalDigest = ethers_1.utils.hashMessage(message);
}
else if (typedData) {
finalDigest = ethers_1.utils._TypedDataEncoder.hash(typedData.domain, typedData.types, typedData.message);
}
else if (!finalDigest) {
throw Error("Missing one of the properties: message, unPrefixedMessage, typedData or finalDigest");
}
coder = new ethers_1.utils.AbiCoder();
return [4 /*yield*/, provider.call({
data: ethers_1.utils.hexConcat([
universalValidator,
coder.encode(['address', 'bytes32', 'bytes'], [signer, finalDigest, signature])
]),
}).then(function (result) { return (typeof result !== 'string') ? result.data : result; })];
case 1:
callResult = _c.sent();
if (callResult === '0x01')
return [2 /*return*/, true];
if (callResult === '0x00')
return [2 /*return*/, false];
if (callResult.startsWith('0x08c379a0'))
throw new Error(coder.decode(['string'], '0x' + callResult.slice(10))[0]);
throw new Error('Unexpected result from UniversalValidator: ' + callResult);
}
});
});
}