saepenatus
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Web3-Onboard makes it simple to connect Ethereum hardware and software wallets to your dapp. Features standardised spec compliant web3 providers for all supported wallets, framework agnostic modern javascript UI with code splitting, CSS customization, mul
46 lines • 1.7 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.namehash = exports.isValidName = void 0;
var bytes_1 = require("@ethersproject/bytes");
var strings_1 = require("@ethersproject/strings");
var keccak256_1 = require("@ethersproject/keccak256");
var logger_1 = require("@ethersproject/logger");
var _version_1 = require("./_version");
var logger = new logger_1.Logger(_version_1.version);
var Zeros = new Uint8Array(32);
Zeros.fill(0);
var Partition = new RegExp("^((.*)\\.)?([^.]+)$");
function isValidName(name) {
try {
var comps = name.split(".");
for (var i = 0; i < comps.length; i++) {
if ((0, strings_1.nameprep)(comps[i]).length === 0) {
throw new Error("empty");
}
}
return true;
}
catch (error) { }
return false;
}
exports.isValidName = isValidName;
function namehash(name) {
/* istanbul ignore if */
if (typeof (name) !== "string") {
logger.throwArgumentError("invalid ENS name; not a string", "name", name);
}
var current = name;
var result = Zeros;
while (current.length) {
var partition = current.match(Partition);
if (partition == null || partition[2] === "") {
logger.throwArgumentError("invalid ENS address; missing component", "name", name);
}
var label = (0, strings_1.toUtf8Bytes)((0, strings_1.nameprep)(partition[3]));
result = (0, keccak256_1.keccak256)((0, bytes_1.concat)([result, (0, keccak256_1.keccak256)(label)]));
current = partition[2] || "";
}
return (0, bytes_1.hexlify)(result);
}
exports.namehash = namehash;
//# sourceMappingURL=namehash.js.map