56 lines
1.9 KiB
JavaScript
56 lines
1.9 KiB
JavaScript
"use strict";
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Object.defineProperty(exports, "__esModule", { value: true });
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var bytes_1 = require("@ethersproject/bytes");
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var strings_1 = require("@ethersproject/strings");
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var keccak256_1 = require("@ethersproject/keccak256");
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var logger_1 = require("@ethersproject/logger");
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var _version_1 = require("./_version");
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var logger = new logger_1.Logger(_version_1.version);
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///////////////////////////////
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var Zeros = new Uint8Array([0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]);
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var Partition = new RegExp("^((.*)\\.)?([^.]+)$");
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function isValidName(name) {
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try {
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var comps = name.split(".");
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for (var i = 0; i < comps.length; i++) {
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if (strings_1.nameprep(comps[i]).length === 0) {
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throw new Error("empty");
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}
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}
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return true;
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}
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catch (error) { }
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return false;
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}
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exports.isValidName = isValidName;
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function namehash(name) {
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if (typeof (name) !== "string") {
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logger.throwArgumentError("invalid address - " + String(name), "name", name);
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}
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var result = Zeros;
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while (name.length) {
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var partition = name.match(Partition);
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var label = strings_1.toUtf8Bytes(strings_1.nameprep(partition[3]));
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result = keccak256_1.keccak256(bytes_1.concat([result, keccak256_1.keccak256(label)]));
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name = partition[2] || "";
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}
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return bytes_1.hexlify(result);
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}
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exports.namehash = namehash;
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function id(text) {
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return keccak256_1.keccak256(strings_1.toUtf8Bytes(text));
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}
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exports.id = id;
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exports.messagePrefix = "\x19Ethereum Signed Message:\n";
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function hashMessage(message) {
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if (typeof (message) === "string") {
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message = strings_1.toUtf8Bytes(message);
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}
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return keccak256_1.keccak256(bytes_1.concat([
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strings_1.toUtf8Bytes(exports.messagePrefix),
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strings_1.toUtf8Bytes(String(message.length)),
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message
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]));
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}
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exports.hashMessage = hashMessage;
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