js-lnurl
Version:
tools for doing lnurl stuff in a lightning wallet.
153 lines (152 loc) • 7.65 kB
JavaScript
;
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 (g && (g = 0, op[0] && (_ = 0)), _) 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];
switch (op[0]) {
case 0: case 1: t = op; break;
case 4: _.label++; return { value: op[1], done: false };
case 5: _.label++; y = op[1]; op = [0]; continue;
case 7: op = _.ops.pop(); _.trys.pop(); continue;
default:
if (!(t = _.trys, t = t.length > 0 && t[t.length - 1]) && (op[0] === 6 || op[0] === 2)) { _ = 0; continue; }
if (op[0] === 3 && (!t || (op[1] > t[0] && op[1] < t[3]))) { _.label = op[1]; break; }
if (op[0] === 6 && _.label < t[1]) { _.label = t[1]; t = op; break; }
if (t && _.label < t[2]) { _.label = t[2]; _.ops.push(op); break; }
if (t[2]) _.ops.pop();
_.trys.pop(); continue;
}
op = body.call(thisArg, _);
} catch (e) { op = [6, e]; y = 0; } finally { f = t = 0; }
if (op[0] & 5) throw op[1]; return { value: op[0] ? op[1] : void 0, done: true };
}
};
var __importDefault = (this && this.__importDefault) || function (mod) {
return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.getParams = void 0;
var cross_fetch_1 = __importDefault(require("cross-fetch"));
var query_string_1 = __importDefault(require("query-string"));
var decodelnurl_1 = require("./helpers/decodelnurl");
var getDomain_1 = require("./helpers/getDomain");
function getParams(lnurl) {
return __awaiter(this, void 0, void 0, function () {
var url, spl, params, r, _a, res, err_1, err_2;
return __generator(this, function (_b) {
switch (_b.label) {
case 0:
try {
url = (0, decodelnurl_1.decodelnurl)(lnurl);
}
catch (err) {
return [2 /*return*/, {
status: 'ERROR',
reason: "invalid lnurl '".concat(lnurl, "'")
}];
}
spl = url.split('?');
if (spl.length > 1) {
params = query_string_1.default.parse(spl[1]);
if (params.tag === 'login') {
return [2 /*return*/, {
tag: 'login',
k1: params.k1,
callback: url,
domain: (0, getDomain_1.getDomain)(url)
}];
}
else if (params.tag === 'withdrawRequest' &&
params.k1 &&
params.callback) {
return [2 /*return*/, __assign(__assign({}, params), { domain: (0, getDomain_1.getDomain)(params.callback) })];
}
}
_b.label = 1;
case 1:
_b.trys.push([1, 9, , 10]);
return [4 /*yield*/, (0, cross_fetch_1.default)(url)];
case 2:
r = _b.sent();
if (!(r.status >= 300)) return [3 /*break*/, 4];
_a = Error.bind;
return [4 /*yield*/, r.text()];
case 3: throw new (_a.apply(Error, [void 0, _b.sent()]))();
case 4:
res = void 0;
_b.label = 5;
case 5:
_b.trys.push([5, 7, , 8]);
return [4 /*yield*/, r.json()];
case 6:
res = _b.sent();
return [3 /*break*/, 8];
case 7:
err_1 = _b.sent();
throw new Error('(invalid JSON)');
case 8:
if (res.callback) {
res.domain = (0, getDomain_1.getDomain)(res.callback);
}
switch (res.tag) {
case 'withdrawRequest':
return [2 /*return*/, res];
break;
case 'payRequest':
try {
res.decodedMetadata = JSON.parse(res.metadata);
}
catch (err) {
res.decodedMetadata = [];
}
res.commentAllowed =
typeof res.commentAllowed === 'number' ? res.commentAllowed : 0;
return [2 /*return*/, res];
case 'channelRequest':
return [2 /*return*/, res];
default:
if (res.status === 'ERROR') {
return [2 /*return*/, __assign(__assign({}, res), { domain: (0, getDomain_1.getDomain)(url), url: url })];
}
throw new Error('unknown tag: ' + res.tag);
}
return [3 /*break*/, 10];
case 9:
err_2 = _b.sent();
return [2 /*return*/, {
status: 'ERROR',
reason: "".concat(url, " returned error: ").concat(err_2.message),
url: url,
domain: (0, getDomain_1.getDomain)(url)
}];
case 10: return [2 /*return*/];
}
});
});
}
exports.getParams = getParams;