@authereum/resolution
Version:
Domain Resolution for blockchain domains
175 lines (174 loc) • 8.29 kB
JavaScript
;
var __extends = (this && this.__extends) || (function () {
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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); } }
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());
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var __generator = (this && this.__generator) || function (thisArg, body) {
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var __importDefault = (this && this.__importDefault) || function (mod) {
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var result = {};
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result["default"] = mod;
return result;
};
Object.defineProperty(exports, "__esModule", { value: true });
var BaseConnection_1 = __importDefault(require("./BaseConnection"));
var configurationError_1 = __importStar(require("./errors/configurationError"));
var resolutionError_1 = __importStar(require("./errors/resolutionError"));
var FetchProvider_1 = __importDefault(require("./FetchProvider"));
var NamingService = /** @class */ (function (_super) {
__extends(NamingService, _super);
function NamingService(source, name) {
var _this = _super.call(this) || this;
_this.name = name;
source = _this.normalizeSource(source);
_this.ensureConfigured(source);
_this.url = source.url;
_this.provider = source.provider || new FetchProvider_1.default(_this.name, _this.url || '');
_this.network = source.network;
_this.registryAddress = source.registry;
return _this;
}
NamingService.prototype.serviceName = function (domain) {
return this.name;
};
NamingService.prototype.namehash = function (domain) {
var _this = this;
this.ensureSupportedDomain(domain);
var parent = '0000000000000000000000000000000000000000000000000000000000000000';
return '0x' + [parent]
.concat(domain
.split('.')
.reverse()
.filter(function (label) { return label; }))
.reduce(function (parent, label) {
return _this.childhash(parent, label);
});
};
NamingService.prototype.record = function (domain, key) {
return __awaiter(this, void 0, void 0, function () {
var records;
return __generator(this, function (_a) {
switch (_a.label) {
case 0: return [4 /*yield*/, this.records(domain, [key])];
case 1:
records = _a.sent();
return [2 /*return*/, NamingService.ensureRecordPresence(domain, key, records[key])];
}
});
});
};
NamingService.prototype.ensureSupportedDomain = function (domain) {
if (!this.isSupportedDomain(domain)) {
throw new resolutionError_1.default(resolutionError_1.ResolutionErrorCode.UnsupportedDomain, {
domain: domain,
});
}
};
NamingService.prototype.ignoreResolutionErrors = function (codes, promise) {
return __awaiter(this, void 0, void 0, function () {
var error_1;
var _this = this;
return __generator(this, function (_a) {
switch (_a.label) {
case 0:
_a.trys.push([0, 2, , 3]);
return [4 /*yield*/, promise];
case 1: return [2 /*return*/, _a.sent()];
case 2:
error_1 = _a.sent();
if (codes.some(function (code) { return _this.isResolutionError(error_1, code); })) {
return [2 /*return*/, undefined];
}
else {
throw error_1;
}
return [3 /*break*/, 3];
case 3: return [2 /*return*/];
}
});
});
};
NamingService.prototype.isResolutionError = function (error, code) {
return error instanceof resolutionError_1.default && (!code || error.code === code);
};
NamingService.ensureRecordPresence = function (domain, key, value) {
if (value) {
return value;
}
throw new resolutionError_1.default(resolutionError_1.ResolutionErrorCode.RecordNotFound, {
recordName: key,
domain: domain,
});
};
NamingService.prototype.ensureConfigured = function (source) {
if (!source.network) {
throw new configurationError_1.default(configurationError_1.ConfigurationErrorCode.UnspecifiedNetwork, {
method: this.name,
});
}
if (!source.url && !source.provider) {
throw new configurationError_1.default(configurationError_1.ConfigurationErrorCode.UnspecifiedUrl, {
method: this.name,
});
}
};
NamingService.prototype.constructRecords = function (keys, values) {
var records = {};
keys.forEach(function (key, index) {
var value = (values instanceof Array ? values[index] : values === null || values === void 0 ? void 0 : values[key]) || '';
if (value)
records[key] = value;
});
return records;
};
return NamingService;
}(BaseConnection_1.default));
exports.default = NamingService;