63 lines
2.4 KiB
JavaScript
63 lines
2.4 KiB
JavaScript
"use strict";
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var __importStar = (this && this.__importStar) || function (mod) {
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if (mod && mod.__esModule) return mod;
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var result = {};
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if (mod != null) for (var k in mod) if (Object.hasOwnProperty.call(mod, k)) result[k] = mod[k];
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result["default"] = mod;
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return result;
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};
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Object.defineProperty(exports, "__esModule", { value: true });
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// @TODO: Migrate this to a better named package...
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var errors = __importStar(require("@ethersproject/errors"));
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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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///////////////////////////////
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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("^((.*)\\.)?([^.]+)$");
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var UseSTD3ASCIIRules = new RegExp("^[a-z0-9.-]*$");
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function namehash(name) {
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if (typeof (name) !== "string") {
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errors.throwError("invalid address - " + String(name), errors.INVALID_ARGUMENT, {
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argument: "name",
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value: name
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});
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}
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name = name.toLowerCase();
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// Supporting the full UTF-8 space requires additional (and large)
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// libraries, so for now we simply do not support them.
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// It should be fairly easy in the future to support systems with
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// String.normalize, but that is future work.
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if (!name.match(UseSTD3ASCIIRules)) {
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errors.throwError("contains invalid UseSTD3ASCIIRules characters", errors.INVALID_ARGUMENT, {
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argument: "name",
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value: name
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});
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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(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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