@authereum/resolution
Version:
Domain Resolution for blockchain domains
242 lines (241 loc) • 11.6 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 __());
};
})();
var __assign = (this && this.__assign) || function () {
__assign = Object.assign || function(t) {
for (var s, i = 1, n = arguments.length; i < n; i++) {
s = arguments[i];
for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p))
t[p] = s[p];
}
return t;
};
return __assign.apply(this, arguments);
};
var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
return new (P || (P = Promise))(function (resolve, reject) {
function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
step((generator = generator.apply(thisArg, _arguments || [])).next());
});
};
var __generator = (this && this.__generator) || function (thisArg, body) {
var _ = { label: 0, sent: function() { if (t[0] & 1) throw t[1]; return t[1]; }, trys: [], ops: [] }, f, y, t, g;
return g = { next: verb(0), "throw": verb(1), "return": verb(2) }, typeof Symbol === "function" && (g[Symbol.iterator] = function() { return this; }), g;
function verb(n) { return function (v) { return step([n, v]); }; }
function step(op) {
if (f) throw new TypeError("Generator is already executing.");
while (_) try {
if (f = 1, y && (t = op[0] & 2 ? y["return"] : op[0] ? y["throw"] || ((t = y["return"]) && t.call(y), 0) : y.next) && !(t = t.call(y, op[1])).done) return t;
if (y = 0, t) op = [op[0] & 2, t.value];
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case 0: case 1: t = op; break;
case 4: _.label++; return { value: op[1], done: false };
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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 utils_1 = require("./zns/utils");
var index_1 = require("./index");
var NamingService_1 = __importDefault(require("./NamingService"));
var Zns_1 = __importDefault(require("./Zns"));
var Ens_1 = __importDefault(require("./Ens"));
var Cns_1 = __importDefault(require("./Cns"));
var package_json_1 = __importDefault(require("./package.json"));
var TwitterSignatureValidator_1 = require("./utils/TwitterSignatureValidator");
var standardKeys_1 = __importDefault(require("./utils/standardKeys"));
var Udapi = /** @class */ (function (_super) {
__extends(Udapi, _super);
function Udapi(options) {
var _this = _super.call(this, options, 'UDAPI') || this;
var DefaultUserAgent = _this.isNode()
? 'node-fetch/1.0 (+https://github.com/bitinn/node-fetch)'
: navigator.userAgent;
var version = package_json_1.default.version;
var CustomUserAgent = DefaultUserAgent + " Resolution/" + version;
_this.headers = { 'X-user-agent': CustomUserAgent };
return _this;
}
Udapi.prototype.isSupportedDomain = function (domain) {
return !!this.findMethod(domain);
};
Udapi.prototype.isSupportedNetwork = function () {
return true;
};
Udapi.prototype.namehash = function (domain) {
return this.findMethodOrThrow(domain).namehash(domain);
};
Udapi.prototype.owner = function (domain) {
return __awaiter(this, void 0, void 0, function () {
var owner;
return __generator(this, function (_a) {
switch (_a.label) {
case 0: return [4 /*yield*/, this.resolve(domain)];
case 1:
owner = (_a.sent()).meta.owner;
if (!owner) {
return [2 /*return*/, null];
}
return [2 /*return*/, owner.startsWith('zil1') ? owner : utils_1.toBech32Address(owner)];
}
});
});
};
Udapi.prototype.records = function (domain, keys) {
return __awaiter(this, void 0, void 0, function () {
var records;
return __generator(this, function (_a) {
switch (_a.label) {
case 0: return [4 /*yield*/, this.allRecords(domain)];
case 1:
records = _a.sent();
return [2 /*return*/, this.constructRecords(keys, records)];
}
});
});
};
Udapi.prototype.twitter = function (domain) {
return __awaiter(this, void 0, void 0, function () {
var serviceName, domainMetaData, owner, records, validationSignature, twitterHandle;
return __generator(this, function (_a) {
switch (_a.label) {
case 0:
serviceName = this.serviceName(domain);
if (serviceName !== 'CNS') {
throw new index_1.ResolutionError(index_1.ResolutionErrorCode.UnsupportedMethod, {
domain: domain,
methodName: 'twitter',
});
}
return [4 /*yield*/, this.resolve(domain)];
case 1:
domainMetaData = _a.sent();
if (!domainMetaData.meta.owner) {
throw new index_1.ResolutionError(index_1.ResolutionErrorCode.UnregisteredDomain, {
domain: domain,
});
}
owner = domainMetaData.meta.owner;
records = domainMetaData.records || {};
validationSignature = records[standardKeys_1.default.validation_twitter_username];
twitterHandle = records[standardKeys_1.default.twitter_username];
NamingService_1.default.ensureRecordPresence(domain, 'twitter validation username', validationSignature);
NamingService_1.default.ensureRecordPresence(domain, 'twitter handle', twitterHandle);
if (!TwitterSignatureValidator_1.isValidTwitterSignature({
tokenId: domainMetaData.meta.namehash,
owner: owner,
twitterHandle: twitterHandle,
validationSignature: validationSignature,
})) {
throw new index_1.ResolutionError(index_1.ResolutionErrorCode.InvalidTwitterVerification, {
domain: domain,
});
}
return [2 /*return*/, twitterHandle];
}
});
});
};
Udapi.prototype.allRecords = function (domain) {
return __awaiter(this, void 0, void 0, function () {
return __generator(this, function (_a) {
switch (_a.label) {
case 0: return [4 /*yield*/, this.resolve(domain)];
case 1: return [2 /*return*/, (_a.sent()).records || {}];
}
});
});
};
Udapi.prototype.resolve = function (domain) {
return __awaiter(this, void 0, void 0, function () {
var response, error_1;
return __generator(this, function (_a) {
switch (_a.label) {
case 0:
_a.trys.push([0, 3, , 4]);
return [4 /*yield*/, this.fetch(this.url + "/" + domain, {
method: 'GET',
headers: this.headers,
})];
case 1:
response = _a.sent();
return [4 /*yield*/, response.json()];
case 2: return [2 /*return*/, _a.sent()];
case 3:
error_1 = _a.sent();
if (error_1.name !== 'FetchError') {
throw error_1;
}
throw new index_1.ResolutionError(index_1.ResolutionErrorCode.NamingServiceDown, {
method: this.name,
});
case 4: return [2 /*return*/];
}
});
});
};
Udapi.prototype.childhash = function () {
var args = [];
for (var _i = 0; _i < arguments.length; _i++) {
args[_i] = arguments[_i];
}
throw new Error('Unsupported method whe using UD Resolution API');
};
Udapi.prototype.serviceName = function (domain) {
return this.findMethodOrThrow(domain).name;
};
Udapi.prototype.resolver = function (domain) {
return __awaiter(this, void 0, void 0, function () {
return __generator(this, function (_a) {
throw new Error('Method not implemented.');
});
});
};
Udapi.prototype.normalizeSource = function (source) {
return __assign({ network: 1 }, source);
};
Udapi.prototype.findMethod = function (domain) {
return [new Zns_1.default(), new Ens_1.default(), new Cns_1.default()].find(function (m) {
return m.isSupportedDomain(domain);
});
};
Udapi.prototype.findMethodOrThrow = function (domain) {
var method = this.findMethod(domain);
if (!method) {
throw new index_1.ResolutionError(index_1.ResolutionErrorCode.UnsupportedDomain, {
domain: domain,
});
}
return method;
};
return Udapi;
}(NamingService_1.default));
exports.default = Udapi;