@remote.it/core
Version:
Core remote.it JavasScript/TypeScript library
151 lines • 7.51 kB
JavaScript
;
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;
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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 __read = (this && this.__read) || function (o, n) {
var m = typeof Symbol === "function" && o[Symbol.iterator];
if (!m) return o;
var i = m.call(o), r, ar = [], e;
try {
while ((n === void 0 || n-- > 0) && !(r = i.next()).done) ar.push(r.value);
}
catch (error) { e = { error: error }; }
finally {
try {
if (r && !r.done && (m = i["return"])) m.call(i);
}
finally { if (e) throw e.error; }
}
return ar;
};
var __spread = (this && this.__spread) || function () {
for (var ar = [], i = 0; i < arguments.length; i++) ar = ar.concat(__read(arguments[i]));
return ar;
};
var __values = (this && this.__values) || function(o) {
var s = typeof Symbol === "function" && Symbol.iterator, m = s && o[s], i = 0;
if (m) return m.call(o);
if (o && typeof o.length === "number") return {
next: function () {
if (o && i >= o.length) o = void 0;
return { value: o && o[i++], done: !o };
}
};
throw new TypeError(s ? "Object is not iterable." : "Symbol.iterator is not defined.");
};
var __importDefault = (this && this.__importDefault) || function (mod) {
return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
var net_1 = __importDefault(require("net"));
var debug_1 = __importDefault(require("debug"));
var d = debug_1.default('remoteit:PortScanner');
var PortScanner = /** @class */ (function () {
function PortScanner() {
}
PortScanner.findFreePortInRange = function (start, end, reservedPorts) {
if (reservedPorts === void 0) { reservedPorts = []; }
return __awaiter(this, void 0, void 0, function () {
var range, range_1, range_1_1, port, free, e_1_1;
var e_1, _a;
return __generator(this, function (_b) {
switch (_b.label) {
case 0:
d('Checking port range:', { start: start, end: end });
range = __spread(Array(end - start).keys()).map(function (x) { return x + start; })
// Remove any reserved ports from our pool of ports
.filter(function (x) { return !reservedPorts.includes(x); });
_b.label = 1;
case 1:
_b.trys.push([1, 6, 7, 8]);
range_1 = __values(range), range_1_1 = range_1.next();
_b.label = 2;
case 2:
if (!!range_1_1.done) return [3 /*break*/, 5];
port = range_1_1.value;
return [4 /*yield*/, this.isPortFree(port)];
case 3:
free = _b.sent();
if (free) {
d('Found free port:', free);
return [2 /*return*/, port];
}
_b.label = 4;
case 4:
range_1_1 = range_1.next();
return [3 /*break*/, 2];
case 5: return [3 /*break*/, 8];
case 6:
e_1_1 = _b.sent();
e_1 = { error: e_1_1 };
return [3 /*break*/, 8];
case 7:
try {
if (range_1_1 && !range_1_1.done && (_a = range_1.return)) _a.call(range_1);
}
finally { if (e_1) throw e_1.error; }
return [7 /*endfinally*/];
case 8: return [2 /*return*/, undefined];
}
});
});
};
PortScanner.isPortFree = function (port, host) {
if (host === void 0) { host = 'localhost'; }
return __awaiter(this, void 0, void 0, function () {
return __generator(this, function (_a) {
return [2 /*return*/, new Promise(function (resolve) {
var server = net_1.default.createServer();
// Check if binding to port causes an exception
server.once('error', function (err) {
if (err.code && (err.code === 'EADDRINUSE' || err.code === 'EACCES')) {
resolve(false);
}
});
// Listen for connection and resolve "true" if no errors
server.once('listening', function () {
server.once('close', function () { return resolve(true); });
server.close();
});
server.listen(port, host);
})];
});
});
};
return PortScanner;
}());
exports.PortScanner = PortScanner;
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