@authereum/resolution
Version:
Domain Resolution for blockchain domains
410 lines (409 loc) • 19.9 kB
JavaScript
"use strict";
var __extends = (this && this.__extends) || (function () {
var extendStatics = function (d, b) {
extendStatics = Object.setPrototypeOf ||
({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
return extendStatics(d, b);
};
return function (d, b) {
extendStatics(d, b);
function __() { this.constructor = d; }
d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
};
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function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
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step((generator = generator.apply(thisArg, _arguments || [])).next());
});
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var __generator = (this && this.__generator) || function (thisArg, body) {
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};
var __importDefault = (this && this.__importDefault) || function (mod) {
return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
var ens_1 = __importDefault(require("./ens/contract/ens"));
var resolver_1 = __importDefault(require("./ens/contract/resolver"));
var address_encoder_1 = require("@ensdomains/address-encoder");
var types_1 = require("./types");
var EthereumNamingService_1 = require("./EthereumNamingService");
var index_1 = require("./index");
var content_hash_1 = __importDefault(require("content-hash"));
var ethereum_ens_network_map_1 = __importDefault(require("ethereum-ens-network-map"));
var Ens = /** @class */ (function (_super) {
__extends(Ens, _super);
function Ens(source) {
if (source === void 0) { source = {}; }
var _this = _super.call(this, source, index_1.NamingServiceName.ENS) || this;
_this.name = index_1.NamingServiceName.ENS;
return _this;
}
Ens.prototype.readerAbi = function () {
return ens_1.default;
};
Ens.prototype.isSupportedDomain = function (domain) {
return (domain === 'eth' ||
(domain.includes('.') &&
/^[^-]*[^-]*\.(eth|luxe|xyz|kred|addr\.reverse)$/.test(domain) &&
domain.split('.').every(function (v) { return !!v.length; })));
};
Ens.prototype.isSupportedNetwork = function () {
return this.registryAddress != null;
};
Ens.prototype.records = function (domain, keys) {
return __awaiter(this, void 0, void 0, function () {
var values;
var _this = this;
return __generator(this, function (_a) {
switch (_a.label) {
case 0: return [4 /*yield*/, Promise.all(keys.map(function (key) { return __awaiter(_this, void 0, void 0, function () {
var ticker, ensRecordName;
return __generator(this, function (_a) {
switch (_a.label) {
case 0:
if (!key.startsWith('crypto.')) return [3 /*break*/, 2];
ticker = key.split('.')[1];
return [4 /*yield*/, this.addr(domain, ticker)];
case 1: return [2 /*return*/, _a.sent()];
case 2:
if (!(key === 'ipfs.html.value' || key === 'dweb.ipfs.hash')) return [3 /*break*/, 4];
return [4 /*yield*/, this.getContentHash(domain)];
case 3: return [2 /*return*/, _a.sent()];
case 4:
ensRecordName = this.fromUDRecordNameToENS(key);
return [4 /*yield*/, this.getTextRecord(domain, ensRecordName)];
case 5: return [2 /*return*/, _a.sent()];
}
});
}); }))];
case 1:
values = _a.sent();
return [2 /*return*/, this.constructRecords(keys, values)];
}
});
});
};
Ens.prototype.twitter = function (domain) {
return __awaiter(this, void 0, void 0, function () {
return __generator(this, function (_a) {
throw new index_1.ResolutionError(index_1.ResolutionErrorCode.UnsupportedMethod, {
domain: domain,
methodName: 'twitter',
});
});
});
};
Ens.prototype.fromUDRecordNameToENS = function (record) {
var mapper = {
'ipfs.redirect_domain.value': 'url',
'browser.redirect_url': 'url',
'whois.email.value': 'email',
'gundb.username.value': 'gundb_username',
'gundb.public_key.value': 'gundb_public_key',
};
return mapper[record] || record;
};
Ens.prototype.reverse = function (address, currencyTicker) {
return __awaiter(this, void 0, void 0, function () {
var reverseAddress, nodeHash, resolverAddress, resolverContract;
return __generator(this, function (_a) {
switch (_a.label) {
case 0:
if (currencyTicker != 'ETH') {
throw new Error("Ens doesn't support any currency other than ETH");
}
if (address.startsWith('0x')) {
address = address.substr(2);
}
reverseAddress = address + '.addr.reverse';
nodeHash = this.namehash(reverseAddress);
return [4 /*yield*/, this.resolver(reverseAddress).catch(function (err) { return null; })];
case 1:
resolverAddress = _a.sent();
if (types_1.isNullAddress(resolverAddress)) {
return [2 /*return*/, null];
}
resolverContract = this.buildContract(resolver_1.default(resolverAddress, types_1.EthCoinIndex), resolverAddress);
return [4 /*yield*/, this.resolverCallToName(resolverContract, nodeHash)];
case 2: return [2 /*return*/, _a.sent()];
}
});
});
};
Ens.prototype.addr = function (domain, currencyTicker) {
return __awaiter(this, void 0, void 0, function () {
var resolver, owner, cointType;
return __generator(this, function (_a) {
switch (_a.label) {
case 0: return [4 /*yield*/, this.resolver(domain).catch(function (err) { return null; })];
case 1:
resolver = _a.sent();
if (!!resolver) return [3 /*break*/, 3];
return [4 /*yield*/, this.owner(domain)];
case 2:
owner = _a.sent();
if (types_1.isNullAddress(owner)) {
throw new index_1.ResolutionError(index_1.ResolutionErrorCode.UnregisteredDomain, { domain: domain });
}
throw new index_1.ResolutionError(index_1.ResolutionErrorCode.UnspecifiedResolver, { domain: domain });
case 3:
cointType = this.getCoinType(currencyTicker.toUpperCase());
return [4 /*yield*/, this.fetchAddress(resolver, domain, cointType)];
case 4: return [2 /*return*/, _a.sent()];
}
});
});
};
Ens.prototype.owner = function (domain) {
return __awaiter(this, void 0, void 0, function () {
var nodeHash;
return __generator(this, function (_a) {
switch (_a.label) {
case 0:
nodeHash = this.namehash(domain);
return [4 /*yield*/, this.getOwner(nodeHash)];
case 1: return [2 /*return*/, _a.sent()];
}
});
});
};
Ens.prototype.resolve = function (domain) {
return __awaiter(this, void 0, void 0, function () {
var _a, owner, ttl, resolver, address, resolution;
return __generator(this, function (_b) {
switch (_b.label) {
case 0:
if (!this.isSupportedDomain(domain) || !this.isSupportedNetwork()) {
return [2 /*return*/, null];
}
return [4 /*yield*/, this.getResolutionInfo(domain)];
case 1:
_a = _b.sent(), owner = _a[0], ttl = _a[1], resolver = _a[2];
return [4 /*yield*/, this.fetchAddress(resolver, domain, types_1.EthCoinIndex)];
case 2:
address = _b.sent();
resolution = {
meta: {
namehash: this.namehash(domain),
resolver: resolver,
owner: types_1.isNullAddress(owner) ? null : owner,
type: this.name,
ttl: Number(ttl || 0),
},
addresses: {},
records: {},
};
if (address) {
resolution.addresses = { ETH: address };
}
return [2 /*return*/, resolution];
}
});
});
};
Ens.prototype.allRecords = function (domain) {
return __awaiter(this, void 0, void 0, function () {
return __generator(this, function (_a) {
throw new Error('Method not implemented.');
});
});
};
Ens.prototype.defaultRegistry = function (network) {
return ethereum_ens_network_map_1.default[network];
};
Ens.prototype.getContentHash = function (domain) {
return __awaiter(this, void 0, void 0, function () {
var nodeHash, resolverContract, contentHashEncoded, codec;
return __generator(this, function (_a) {
switch (_a.label) {
case 0:
nodeHash = this.namehash(domain);
return [4 /*yield*/, this.getResolverContract(domain)];
case 1:
resolverContract = _a.sent();
return [4 /*yield*/, this.callMethod(resolverContract, 'contenthash', [nodeHash])];
case 2:
contentHashEncoded = _a.sent();
codec = content_hash_1.default.getCodec(contentHashEncoded);
if (codec !== 'ipfs-ns') {
return [2 /*return*/, undefined];
}
return [2 /*return*/, content_hash_1.default.decode(contentHashEncoded)];
}
});
});
};
Ens.prototype.getTextRecord = function (domain, key) {
return __awaiter(this, void 0, void 0, function () {
var nodeHash, resolver;
return __generator(this, function (_a) {
switch (_a.label) {
case 0:
nodeHash = this.namehash(domain);
return [4 /*yield*/, this.getResolverContract(domain)];
case 1:
resolver = _a.sent();
return [4 /*yield*/, this.callMethod(resolver, 'text', [nodeHash, key])];
case 2: return [2 /*return*/, _a.sent()];
}
});
});
};
Ens.prototype.getResolverContract = function (domain, coinType) {
return __awaiter(this, void 0, void 0, function () {
var resolverAddress;
return __generator(this, function (_a) {
switch (_a.label) {
case 0: return [4 /*yield*/, this.resolver(domain)];
case 1:
resolverAddress = _a.sent();
return [2 /*return*/, this.buildContract(resolver_1.default(resolverAddress, coinType), resolverAddress)];
}
});
});
};
/**
* This was done to make automated tests more configurable
*/
Ens.prototype.resolverCallToName = function (resolverContract, nodeHash) {
return this.callMethod(resolverContract, 'name', [nodeHash]);
};
Ens.prototype.getTTL = function (nodeHash) {
return __awaiter(this, void 0, void 0, function () {
return __generator(this, function (_a) {
switch (_a.label) {
case 0: return [4 /*yield*/, this.callMethod(this.readerContract, 'ttl', [nodeHash])];
case 1: return [2 /*return*/, _a.sent()];
}
});
});
};
/**
* This was done to make automated tests more configurable
*/
Ens.prototype.resolver = function (domain) {
return __awaiter(this, void 0, void 0, function () {
var nodeHash, resolverAddr;
return __generator(this, function (_a) {
switch (_a.label) {
case 0:
nodeHash = this.namehash(domain);
return [4 /*yield*/, this.callMethod(this.readerContract, 'resolver', [nodeHash])];
case 1:
resolverAddr = _a.sent();
if (types_1.isNullAddress(resolverAddr)) {
throw new index_1.ResolutionError(index_1.ResolutionErrorCode.UnspecifiedResolver);
}
return [2 /*return*/, resolverAddr];
}
});
});
};
/**
* This was done to make automated tests more configurable
*/
Ens.prototype.getOwner = function (nodeHash) {
return __awaiter(this, void 0, void 0, function () {
return __generator(this, function (_a) {
switch (_a.label) {
case 0: return [4 /*yield*/, this.callMethod(this.readerContract, 'owner', [nodeHash])];
case 1: return [2 /*return*/, _a.sent()];
}
});
});
};
/**
* This was done to make automated tests more configurable
*/
Ens.prototype.getResolutionInfo = function (domain) {
return __awaiter(this, void 0, void 0, function () {
var nodeHash;
return __generator(this, function (_a) {
switch (_a.label) {
case 0:
nodeHash = this.namehash(domain);
return [4 /*yield*/, Promise.all([
this.owner(domain),
this.getTTL(nodeHash),
this.resolver(domain),
])];
case 1: return [2 /*return*/, _a.sent()];
}
});
});
};
Ens.prototype.getCoinType = function (currencyTicker) {
// eslint-disable-next-line @typescript-eslint/no-var-requires
var constants = require('bip44-constants');
var coin = constants.findIndex(function (item) {
return item[1] === currencyTicker.toUpperCase() ||
item[2] === currencyTicker.toUpperCase();
});
if (coin < 0 || !address_encoder_1.formatsByCoinType[coin]) {
throw new index_1.ResolutionError(index_1.ResolutionErrorCode.UnsupportedCurrency, {
currencyTicker: currencyTicker,
});
}
return coin.toString();
};
Ens.prototype.fetchAddress = function (resolver, domain, coinType) {
return __awaiter(this, void 0, void 0, function () {
var resolverContract, nodeHash, addr, _a, data;
return __generator(this, function (_b) {
switch (_b.label) {
case 0:
resolverContract = this.buildContract(resolver_1.default(resolver, coinType), resolver);
nodeHash = this.namehash(domain);
if (!(coinType !== types_1.EthCoinIndex)) return [3 /*break*/, 2];
return [4 /*yield*/, this.callMethod(resolverContract, 'addr', [nodeHash, coinType])];
case 1:
_a = _b.sent();
return [3 /*break*/, 4];
case 2: return [4 /*yield*/, this.callMethod(resolverContract, 'addr', [nodeHash])];
case 3:
_a = _b.sent();
_b.label = 4;
case 4:
addr = _a;
if (types_1.isNullAddress(addr)) {
return [2 /*return*/, undefined];
}
data = Buffer.from(addr.replace('0x', ''), 'hex');
return [2 /*return*/, address_encoder_1.formatsByCoinType[coinType].encoder(data)];
}
});
});
};
return Ens;
}(EthereumNamingService_1.EthereumNamingService));
exports.default = Ens;