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
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JavaScript
import { concat, hexlify } from "@ethersproject/bytes";
import { nameprep, toUtf8Bytes } from "@ethersproject/strings";
import { keccak256 } from "@ethersproject/keccak256";
import { Logger } from "@ethersproject/logger";
import { version } from "./_version";
const logger = new Logger(version);
const Zeros = new Uint8Array(32);
Zeros.fill(0);
const Partition = new RegExp("^((.*)\\.)?([^.]+)$");
export function isValidName(name) {
try {
const comps = name.split(".");
for (let i = 0; i < comps.length; i++) {
if (nameprep(comps[i]).length === 0) {
throw new Error("empty");
}
}
return true;
}
catch (error) { }
return false;
}
export function namehash(name) {
/* istanbul ignore if */
if (typeof (name) !== "string") {
logger.throwArgumentError("invalid ENS name; not a string", "name", name);
}
let current = name;
let result = Zeros;
while (current.length) {
const partition = current.match(Partition);
if (partition == null || partition[2] === "") {
logger.throwArgumentError("invalid ENS address; missing component", "name", name);
}
const label = toUtf8Bytes(nameprep(partition[3]));
result = keccak256(concat([result, keccak256(label)]));
current = partition[2] || "";
}
return hexlify(result);
}
//# sourceMappingURL=namehash.js.map