joplin/Clipper/joplin-webclipper/popup/src/randomClipperPort.js

const reservedPorts = [1024, 1027, 1028, 1029, 1058, 1059, 1080, 1085, 1098, 1099, 1109, 1119, 1167, 1194, 1198, 1214, 1220, 1234, 1241, 1270, 1293, 1311, 1314, 1337, 1341, 1344,
1352, 1360, 1414, 1417, 1418, 1419, 1420, 1431, 1433, 1434, 1492, 1494, 1500, 1501, 1503, 1512, 1513, 1521, 1524, 1527, 1533, 1547, 1550, 1581, 1582, 1583, 1589, 1604, 1626, 1627,
1628, 1629, 1645, 1646, 1666, 1677, 1688, 1701, 1707, 1716, 1719, 1720, 1723, 1755, 1761, 1783, 1801, 1812, 1813, 1863, 1880, 1883, 1900, 1935, 1967, 1970, 1972, 1984, 1985, 1998,
2000, 2010, 2033, 2049, 2056, 2080, 2082, 2083, 2086, 2087, 2095, 2096, 2100, 2101, 2102, 2103, 2104, 2123, 2142, 2152, 2159, 2181, 2195, 2196, 2210, 2211, 2221, 2222, 2261, 2262,
2266, 2305, 2351, 2368, 2369, 2370, 2372, 2375, 2376, 2377, 2379, 2380, 2399, 2401, 2404, 2424, 2427, 2447, 2480, 2483, 2484, 2535, 2541, 2546, 2593, 2598, 2599, 2638, 2710, 2727,
2809, 2811, 2827, 2944, 2945, 2947, 2948, 2949, 2967, 3000, 3004, 3020, 3050, 3052, 3074, 3101, 3128, 3225, 3233, 3260, 3268, 3269, 3283, 3290, 3305, 3306, 3313, 3316, 3323, 3332,
3333, 3351, 3386, 3389, 3396, 3412, 3423, 3424, 3455, 3478, 3479, 3480, 3483, 3493, 3516, 3527, 3535, 3544, 3632, 3645, 3659, 3667, 3689, 3690, 3702, 3724, 3725, 3768, 3784, 3785,
3799, 3804, 3825, 3826, 3830, 3835, 3856, 3868, 3872, 3880, 3900, 3960, 3962, 3978, 3979, 3999, 4000, 4001, 4018, 4035, 4045, 4050, 4069, 4089, 4090, 4093, 4096, 4105, 4111, 4116,
4125, 4172, 4190, 4198, 4201, 4222, 4226, 4242, 4243, 4244, 4303, 4321, 4352, 4444, 4486, 4488, 4500, 4502, 4505, 4534, 4560, 4567, 4569, 4604, 4605, 4610, 4662, 4664, 4672, 4711,
4713, 4728, 4730, 4739, 4747, 4750, 4753, 4840, 4843, 4847, 4848, 4894, 4949, 4950, 5000, 5001, 5002, 5003, 5004, 5005, 5010, 5011, 5031, 5037, 5048, 5050, 5051, 5060, 5061, 5062,
5064, 5065, 5070, 5084, 5085, 5093, 5099, 5104, 5121, 5124, 5125, 5150, 5151, 5154, 5190, 5201, 5222, 5223, 5228, 5242, 5243, 5246, 5247, 5269, 5280, 5281, 5298, 5310, 5349, 5351,
5353, 5355, 5357, 5358, 5394, 5402, 5405, 5412, 5413, 5417, 5421, 5432, 5433, 5445, 5480, 5481, 5495, 5498, 5499, 5500, 5501, 5517, 5550, 5554, 5555, 5556, 5568, 5601, 5631, 5632,
5656, 5666, 5667, 5670, 5672, 5678, 5683, 5701, 5718, 5719, 5722, 5723, 5724, 5741, 5742, 5800, 5900, 5931, 5938, 5984, 5985, 5986, 5988, 6000, 6001, 6002, 6003, 6004, 6005, 6006,
6007, 6008, 6009, 6010, 6011, 6012, 6013, 6014, 6015, 6016, 6017, 6018, 6019, 6020, 6021, 6022, 6023, 6024, 6025, 6026, 6027, 6028, 6029, 6030, 6031, 6032, 6033, 6034, 6035, 6036,
6037, 6038, 6039, 6040, 6041, 6042, 6043, 6044, 6045, 6046, 6047, 6048, 6049, 6050, 6051, 6052, 6053, 6054, 6055, 6056, 6057, 6058, 6059, 6060, 6061, 6062, 6063, 6086, 6100, 6101,
6110, 6111, 6112, 6113, 6136, 6159, 6200, 6201, 6225, 6227, 6240, 6244, 6255, 6257, 6260, 6262, 6343, 6346, 6347, 6350, 6379, 6389, 6432, 6436, 6437, 6444, 6445, 6463, 6502, 6513,
6514, 6515, 6543, 6556, 6560, 6566, 6571, 6600, 6601, 6602, 6619, 6622, 6653, 6660, 6665, 6679, 6690, 6697, 6699, 6715, 6771, 6783, 6789, 6869, 6881, 6888, 6889, 6891, 6901, 6902,
6969, 6970, 7000, 7001, 7002, 7005, 7006, 7010, 7022, 7023, 7025, 7047, 7070, 7133, 7144, 7145, 7171, 7262, 7272, 7306, 7307, 7312, 7396, 7400, 7401, 7402, 7471, 7473, 7474, 7478,
7542, 7547, 7575, 7624, 7631, 7634, 7652, 7655, 7656, 7670, 7687, 7707, 7717, 7777, 7831, 7880, 7890, 7915, 7935, 7946, 7990, 8000, 8005, 8006, 8007, 8008, 8009, 8042, 8069, 8070,
8074, 8075, 8080, 8088, 8089, 8090, 8091, 8092, 8111, 8112, 8116, 8118, 8123, 8139, 8140, 8172, 8184, 8194, 8200, 8222, 8243, 8245, 8280, 8281, 8291, 8303, 8332, 8333, 8337, 8384,
8388, 8443, 8444, 8484, 8500, 8530, 8531, 8580, 8629, 8642, 8691, 8767, 8834, 8840, 8880, 8883, 8887, 8888, 8889, 8983, 8997, 8998, 8999, 9000, 9001, 9002, 9006, 9030, 9042, 9043,
9050, 9060, 9080, 9090, 9091, 9092, 9100, 9101, 9102, 9103, 9119, 9150, 9191, 9199, 9200, 9217, 9293, 9300, 9303, 9306, 9309, 9312, 9332, 9333, 9339, 9389, 9418, 9419, 9420, 9421,
9422, 9425, 9443, 9535, 9536, 9600, 9675, 9676, 9695, 9785, 9800, 9875, 9898, 9899, 9981, 9982, 9987, 9993, 9997, 9999, 10000, 10001, 10009, 10010, 10024, 10025, 10042, 10050, 10051,
10080, 10110, 10172, 10200, 10201, 10212, 10308, 10480, 10505, 10514, 10823, 10891, 10933, 11001, 11111, 11112, 11211, 11214, 11215, 11235, 11311, 11371, 11753, 12012, 12013, 12035,
12043, 12046, 12201, 12222, 12223, 12345, 12443, 12489, 12975, 13000, 13008, 13075, 13720, 13721, 13724, 13782, 13783, 13785, 13786, 14550, 14567, 15000, 15345, 15441, 15567, 15672,
16000, 16080, 16200, 16225, 16250, 16261, 16300, 16384, 16385, 16386, 16387, 16393, 16394, 16395, 16396, 16397, 16398, 16399, 16400, 16401, 16402, 16403, 16404, 16405, 16406, 16407,
16408, 16409, 16410, 16411, 16412, 16413, 16414, 16415, 16416, 16417, 16418, 16419, 16420, 16421, 16422, 16423, 16424, 16425, 16426, 16427, 16428, 16429, 16430, 16431, 16432, 16433,
16434, 16435, 16436, 16437, 16438, 16439, 16440, 16441, 16442, 16443, 16444, 16445, 16446, 16447, 16448, 16449, 16450, 16451, 16452, 16453, 16454, 16455, 16456, 16457, 16458, 16459,
16460, 16461, 16462, 16463, 16464, 16465, 16466, 16467, 16468, 16469, 16470, 16471, 16472, 16482, 16567, 17011, 17500, 18091, 18092, 18104, 18200, 18201, 18206, 18300, 18301, 18306,
18333, 18400, 18401, 18505, 18506, 18605, 18606, 19000, 19001, 19132, 19150, 19226, 19294, 19295, 19302, 19812, 19813, 19814, 19999, 20000, 20560, 20595, 20808, 21025, 22000, 22136,
22222, 23073, 23399, 23513, 24441, 24444, 24465, 24554, 24800, 24842, 25565, 25575, 25826, 26000, 26900, 27000, 27016, 27017, 27031, 27036, 27037, 27374, 27500, 27888, 27901, 27950,
27960, 28001, 28015, 28770, 28785, 28852, 28910, 28960, 29000, 29070, 29900, 29920, 30564, 31337, 31416, 31438, 31457, 32137, 32400, 32764, 32887, 32976, 33434, 33848, 34000, 34197,
35357, 37008, 40000, 43110, 43594, 44405, 44818, 47001, 47808, 49151];

// From https://github.com/coverslide/node-alea
const AleaModule = function () {
  // importState to sync generator states
  Alea.importState = function(i){
    var random = new Alea();
    random.importState(i);
    return random;
  };

  return Alea;

  function Alea() {
    return (function(args) {
      // Johannes Baagøe <baagoe@baagoe.com>, 2010
      var s0 = 0;
      var s1 = 0;
      var s2 = 0;
      var c = 1;

      if (args.length === 0) {
        args = [+new Date()];
      }
      var mash = Mash();
      s0 = mash(' ');
      s1 = mash(' ');
      s2 = mash(' ');

      for (var i = 0; i < args.length; i++) {
        s0 -= mash(args[i]);
        if (s0 < 0) {
          s0 += 1;
        }
        s1 -= mash(args[i]);
        if (s1 < 0) {
          s1 += 1;
        }
        s2 -= mash(args[i]);
        if (s2 < 0) {
          s2 += 1;
        }
      }
      mash = null;

      var random = function() {
        var t = 2091639 * s0 + c * 2.3283064365386963e-10; // 2^-32
        s0 = s1;
        s1 = s2;
        return s2 = t - (c = t | 0);
      };
      random.uint32 = function() {
        return random() * 0x100000000; // 2^32
      };
      random.fract53 = function() {
        return random() + 
          (random() * 0x200000 | 0) * 1.1102230246251565e-16; // 2^-53
      };
      random.version = 'Alea 0.9';
      random.args = args;

      // my own additions to sync state between two generators
      random.exportState = function(){
        return [s0, s1, s2, c];
      };
      random.importState = function(i){
        s0 = +i[0] || 0;
        s1 = +i[1] || 0;
        s2 = +i[2] || 0;
        c = +i[3] || 0;
      };
 
      return random;

    } (Array.prototype.slice.call(arguments)));
  }

  function Mash() {
    var n = 0xefc8249d;

    var mash = function(data) {
      data = data.toString();
      for (var i = 0; i < data.length; i++) {
        n += data.charCodeAt(i);
        var h = 0.02519603282416938 * n;
        n = h >>> 0;
        h -= n;
        h *= n;
        n = h >>> 0;
        h -= n;
        n += h * 0x100000000; // 2^32
      }
      return (n >>> 0) * 2.3283064365386963e-10; // 2^-32
    };

    mash.version = 'Mash 0.9';
    return mash;
  }
}

const Alea = AleaModule()

function findClipperPort(state, mode = 'prod') {
  const seed = mode === 'prod' ? 1867 : 2001;

	const minPort = 1024
	const maxPort = 49151

	let prng = null;
	if (!state) {
		prng = new Alea(seed)
		state = { prng: prng }
	} else {
		prng = state.prng;
	}

	const randomPort = () => {
		return minPort + Math.floor(prng() * ((maxPort + 1) - minPort));
	}

	let port = null;
	for (let i = 0; i < maxPort; i++) {
		port = randomPort();
		if (reservedPorts.indexOf(port) < 0) break;
	}

	if (!port) throw new Error('Cannot find a non-reserved port');

	state.port = port;

	return state;
}

module.exports = findClipperPort;