/*!
 * Pusher JavaScript Library v8.5.0
 * https://pusher.com/
 *
 * Copyright 2020, Pusher
 * Released under the MIT licence.
 */

(function webpackUniversalModuleDefinition(root, factory) {
	if(typeof exports === 'object' && typeof module === 'object')
		module.exports = factory();
	else if(typeof define === 'function' && define.amd)
		define([], factory);
	else if(typeof exports === 'object')
		exports["Pusher"] = factory();
	else
		root["Pusher"] = factory();
})(self, () => {
return /******/ (() => { // webpackBootstrap
/******/ 	var __webpack_modules__ = ({

/***/ 594
(__unused_webpack_module, exports) {

"use strict";

// Copyright (C) 2016 Dmitry Chestnykh
// MIT License. See LICENSE file for details.
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 __());
    };
})();
Object.defineProperty(exports, "__esModule", ({ value: true }));
/**
 * Package base64 implements Base64 encoding and decoding.
 */
// Invalid character used in decoding to indicate
// that the character to decode is out of range of
// alphabet and cannot be decoded.
var INVALID_BYTE = 256;
/**
 * Implements standard Base64 encoding.
 *
 * Operates in constant time.
 */
var Coder = /** @class */ (function () {
    // TODO(dchest): methods to encode chunk-by-chunk.
    function Coder(_paddingCharacter) {
        if (_paddingCharacter === void 0) { _paddingCharacter = "="; }
        this._paddingCharacter = _paddingCharacter;
    }
    Coder.prototype.encodedLength = function (length) {
        if (!this._paddingCharacter) {
            return (length * 8 + 5) / 6 | 0;
        }
        return (length + 2) / 3 * 4 | 0;
    };
    Coder.prototype.encode = function (data) {
        var out = "";
        var i = 0;
        for (; i < data.length - 2; i += 3) {
            var c = (data[i] << 16) | (data[i + 1] << 8) | (data[i + 2]);
            out += this._encodeByte((c >>> 3 * 6) & 63);
            out += this._encodeByte((c >>> 2 * 6) & 63);
            out += this._encodeByte((c >>> 1 * 6) & 63);
            out += this._encodeByte((c >>> 0 * 6) & 63);
        }
        var left = data.length - i;
        if (left > 0) {
            var c = (data[i] << 16) | (left === 2 ? data[i + 1] << 8 : 0);
            out += this._encodeByte((c >>> 3 * 6) & 63);
            out += this._encodeByte((c >>> 2 * 6) & 63);
            if (left === 2) {
                out += this._encodeByte((c >>> 1 * 6) & 63);
            }
            else {
                out += this._paddingCharacter || "";
            }
            out += this._paddingCharacter || "";
        }
        return out;
    };
    Coder.prototype.maxDecodedLength = function (length) {
        if (!this._paddingCharacter) {
            return (length * 6 + 7) / 8 | 0;
        }
        return length / 4 * 3 | 0;
    };
    Coder.prototype.decodedLength = function (s) {
        return this.maxDecodedLength(s.length - this._getPaddingLength(s));
    };
    Coder.prototype.decode = function (s) {
        if (s.length === 0) {
            return new Uint8Array(0);
        }
        var paddingLength = this._getPaddingLength(s);
        var length = s.length - paddingLength;
        var out = new Uint8Array(this.maxDecodedLength(length));
        var op = 0;
        var i = 0;
        var haveBad = 0;
        var v0 = 0, v1 = 0, v2 = 0, v3 = 0;
        for (; i < length - 4; i += 4) {
            v0 = this._decodeChar(s.charCodeAt(i + 0));
            v1 = this._decodeChar(s.charCodeAt(i + 1));
            v2 = this._decodeChar(s.charCodeAt(i + 2));
            v3 = this._decodeChar(s.charCodeAt(i + 3));
            out[op++] = (v0 << 2) | (v1 >>> 4);
            out[op++] = (v1 << 4) | (v2 >>> 2);
            out[op++] = (v2 << 6) | v3;
            haveBad |= v0 & INVALID_BYTE;
            haveBad |= v1 & INVALID_BYTE;
            haveBad |= v2 & INVALID_BYTE;
            haveBad |= v3 & INVALID_BYTE;
        }
        if (i < length - 1) {
            v0 = this._decodeChar(s.charCodeAt(i));
            v1 = this._decodeChar(s.charCodeAt(i + 1));
            out[op++] = (v0 << 2) | (v1 >>> 4);
            haveBad |= v0 & INVALID_BYTE;
            haveBad |= v1 & INVALID_BYTE;
        }
        if (i < length - 2) {
            v2 = this._decodeChar(s.charCodeAt(i + 2));
            out[op++] = (v1 << 4) | (v2 >>> 2);
            haveBad |= v2 & INVALID_BYTE;
        }
        if (i < length - 3) {
            v3 = this._decodeChar(s.charCodeAt(i + 3));
            out[op++] = (v2 << 6) | v3;
            haveBad |= v3 & INVALID_BYTE;
        }
        if (haveBad !== 0) {
            throw new Error("Base64Coder: incorrect characters for decoding");
        }
        return out;
    };
    // Standard encoding have the following encoded/decoded ranges,
    // which we need to convert between.
    //
    // ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz 0123456789  +   /
    // Index:   0 - 25                    26 - 51              52 - 61   62  63
    // ASCII:  65 - 90                    97 - 122             48 - 57   43  47
    //
    // Encode 6 bits in b into a new character.
    Coder.prototype._encodeByte = function (b) {
        // Encoding uses constant time operations as follows:
        //
        // 1. Define comparison of A with B using (A - B) >>> 8:
        //          if A > B, then result is positive integer
        //          if A <= B, then result is 0
        //
        // 2. Define selection of C or 0 using bitwise AND: X & C:
        //          if X == 0, then result is 0
        //          if X != 0, then result is C
        //
        // 3. Start with the smallest comparison (b >= 0), which is always
        //    true, so set the result to the starting ASCII value (65).
        //
        // 4. Continue comparing b to higher ASCII values, and selecting
        //    zero if comparison isn't true, otherwise selecting a value
        //    to add to result, which:
        //
        //          a) undoes the previous addition
        //          b) provides new value to add
        //
        var result = b;
        // b >= 0
        result += 65;
        // b > 25
        result += ((25 - b) >>> 8) & ((0 - 65) - 26 + 97);
        // b > 51
        result += ((51 - b) >>> 8) & ((26 - 97) - 52 + 48);
        // b > 61
        result += ((61 - b) >>> 8) & ((52 - 48) - 62 + 43);
        // b > 62
        result += ((62 - b) >>> 8) & ((62 - 43) - 63 + 47);
        return String.fromCharCode(result);
    };
    // Decode a character code into a byte.
    // Must return 256 if character is out of alphabet range.
    Coder.prototype._decodeChar = function (c) {
        // Decoding works similar to encoding: using the same comparison
        // function, but now it works on ranges: result is always incremented
        // by value, but this value becomes zero if the range is not
        // satisfied.
        //
        // Decoding starts with invalid value, 256, which is then
        // subtracted when the range is satisfied. If none of the ranges
        // apply, the function returns 256, which is then checked by
        // the caller to throw error.
        var result = INVALID_BYTE; // start with invalid character
        // c == 43 (c > 42 and c < 44)
        result += (((42 - c) & (c - 44)) >>> 8) & (-INVALID_BYTE + c - 43 + 62);
        // c == 47 (c > 46 and c < 48)
        result += (((46 - c) & (c - 48)) >>> 8) & (-INVALID_BYTE + c - 47 + 63);
        // c > 47 and c < 58
        result += (((47 - c) & (c - 58)) >>> 8) & (-INVALID_BYTE + c - 48 + 52);
        // c > 64 and c < 91
        result += (((64 - c) & (c - 91)) >>> 8) & (-INVALID_BYTE + c - 65 + 0);
        // c > 96 and c < 123
        result += (((96 - c) & (c - 123)) >>> 8) & (-INVALID_BYTE + c - 97 + 26);
        return result;
    };
    Coder.prototype._getPaddingLength = function (s) {
        var paddingLength = 0;
        if (this._paddingCharacter) {
            for (var i = s.length - 1; i >= 0; i--) {
                if (s[i] !== this._paddingCharacter) {
                    break;
                }
                paddingLength++;
            }
            if (s.length < 4 || paddingLength > 2) {
                throw new Error("Base64Coder: incorrect padding");
            }
        }
        return paddingLength;
    };
    return Coder;
}());
exports.Coder = Coder;
var stdCoder = new Coder();
function encode(data) {
    return stdCoder.encode(data);
}
exports.encode = encode;
function decode(s) {
    return stdCoder.decode(s);
}
exports.decode = decode;
/**
 * Implements URL-safe Base64 encoding.
 * (Same as Base64, but '+' is replaced with '-', and '/' with '_').
 *
 * Operates in constant time.
 */
var URLSafeCoder = /** @class */ (function (_super) {
    __extends(URLSafeCoder, _super);
    function URLSafeCoder() {
        return _super !== null && _super.apply(this, arguments) || this;
    }
    // URL-safe encoding have the following encoded/decoded ranges:
    //
    // ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz 0123456789  -   _
    // Index:   0 - 25                    26 - 51              52 - 61   62  63
    // ASCII:  65 - 90                    97 - 122             48 - 57   45  95
    //
    URLSafeCoder.prototype._encodeByte = function (b) {
        var result = b;
        // b >= 0
        result += 65;
        // b > 25
        result += ((25 - b) >>> 8) & ((0 - 65) - 26 + 97);
        // b > 51
        result += ((51 - b) >>> 8) & ((26 - 97) - 52 + 48);
        // b > 61
        result += ((61 - b) >>> 8) & ((52 - 48) - 62 + 45);
        // b > 62
        result += ((62 - b) >>> 8) & ((62 - 45) - 63 + 95);
        return String.fromCharCode(result);
    };
    URLSafeCoder.prototype._decodeChar = function (c) {
        var result = INVALID_BYTE;
        // c == 45 (c > 44 and c < 46)
        result += (((44 - c) & (c - 46)) >>> 8) & (-INVALID_BYTE + c - 45 + 62);
        // c == 95 (c > 94 and c < 96)
        result += (((94 - c) & (c - 96)) >>> 8) & (-INVALID_BYTE + c - 95 + 63);
        // c > 47 and c < 58
        result += (((47 - c) & (c - 58)) >>> 8) & (-INVALID_BYTE + c - 48 + 52);
        // c > 64 and c < 91
        result += (((64 - c) & (c - 91)) >>> 8) & (-INVALID_BYTE + c - 65 + 0);
        // c > 96 and c < 123
        result += (((96 - c) & (c - 123)) >>> 8) & (-INVALID_BYTE + c - 97 + 26);
        return result;
    };
    return URLSafeCoder;
}(Coder));
exports.URLSafeCoder = URLSafeCoder;
var urlSafeCoder = new URLSafeCoder();
function encodeURLSafe(data) {
    return urlSafeCoder.encode(data);
}
exports.encodeURLSafe = encodeURLSafe;
function decodeURLSafe(s) {
    return urlSafeCoder.decode(s);
}
exports.decodeURLSafe = decodeURLSafe;
exports.encodedLength = function (length) {
    return stdCoder.encodedLength(length);
};
exports.maxDecodedLength = function (length) {
    return stdCoder.maxDecodedLength(length);
};
exports.decodedLength = function (s) {
    return stdCoder.decodedLength(s);
};


/***/ },

/***/ 978
(__unused_webpack_module, exports) {

"use strict";
var __webpack_unused_export__;

// Copyright (C) 2016 Dmitry Chestnykh
// MIT License. See LICENSE file for details.
__webpack_unused_export__ = ({ value: true });
/**
 * Package utf8 implements UTF-8 encoding and decoding.
 */
var INVALID_UTF16 = "utf8: invalid string";
var INVALID_UTF8 = "utf8: invalid source encoding";
/**
 * Encodes the given string into UTF-8 byte array.
 * Throws if the source string has invalid UTF-16 encoding.
 */
function encode(s) {
    // Calculate result length and allocate output array.
    // encodedLength() also validates string and throws errors,
    // so we don't need repeat validation here.
    var arr = new Uint8Array(encodedLength(s));
    var pos = 0;
    for (var i = 0; i < s.length; i++) {
        var c = s.charCodeAt(i);
        if (c < 0x80) {
            arr[pos++] = c;
        }
        else if (c < 0x800) {
            arr[pos++] = 0xc0 | c >> 6;
            arr[pos++] = 0x80 | c & 0x3f;
        }
        else if (c < 0xd800) {
            arr[pos++] = 0xe0 | c >> 12;
            arr[pos++] = 0x80 | (c >> 6) & 0x3f;
            arr[pos++] = 0x80 | c & 0x3f;
        }
        else {
            i++; // get one more character
            c = (c & 0x3ff) << 10;
            c |= s.charCodeAt(i) & 0x3ff;
            c += 0x10000;
            arr[pos++] = 0xf0 | c >> 18;
            arr[pos++] = 0x80 | (c >> 12) & 0x3f;
            arr[pos++] = 0x80 | (c >> 6) & 0x3f;
            arr[pos++] = 0x80 | c & 0x3f;
        }
    }
    return arr;
}
__webpack_unused_export__ = encode;
/**
 * Returns the number of bytes required to encode the given string into UTF-8.
 * Throws if the source string has invalid UTF-16 encoding.
 */
function encodedLength(s) {
    var result = 0;
    for (var i = 0; i < s.length; i++) {
        var c = s.charCodeAt(i);
        if (c < 0x80) {
            result += 1;
        }
        else if (c < 0x800) {
            result += 2;
        }
        else if (c < 0xd800) {
            result += 3;
        }
        else if (c <= 0xdfff) {
            if (i >= s.length - 1) {
                throw new Error(INVALID_UTF16);
            }
            i++; // "eat" next character
            result += 4;
        }
        else {
            throw new Error(INVALID_UTF16);
        }
    }
    return result;
}
__webpack_unused_export__ = encodedLength;
/**
 * Decodes the given byte array from UTF-8 into a string.
 * Throws if encoding is invalid.
 */
function decode(arr) {
    var chars = [];
    for (var i = 0; i < arr.length; i++) {
        var b = arr[i];
        if (b & 0x80) {
            var min = void 0;
            if (b < 0xe0) {
                // Need 1 more byte.
                if (i >= arr.length) {
                    throw new Error(INVALID_UTF8);
                }
                var n1 = arr[++i];
                if ((n1 & 0xc0) !== 0x80) {
                    throw new Error(INVALID_UTF8);
                }
                b = (b & 0x1f) << 6 | (n1 & 0x3f);
                min = 0x80;
            }
            else if (b < 0xf0) {
                // Need 2 more bytes.
                if (i >= arr.length - 1) {
                    throw new Error(INVALID_UTF8);
                }
                var n1 = arr[++i];
                var n2 = arr[++i];
                if ((n1 & 0xc0) !== 0x80 || (n2 & 0xc0) !== 0x80) {
                    throw new Error(INVALID_UTF8);
                }
                b = (b & 0x0f) << 12 | (n1 & 0x3f) << 6 | (n2 & 0x3f);
                min = 0x800;
            }
            else if (b < 0xf8) {
                // Need 3 more bytes.
                if (i >= arr.length - 2) {
                    throw new Error(INVALID_UTF8);
                }
                var n1 = arr[++i];
                var n2 = arr[++i];
                var n3 = arr[++i];
                if ((n1 & 0xc0) !== 0x80 || (n2 & 0xc0) !== 0x80 || (n3 & 0xc0) !== 0x80) {
                    throw new Error(INVALID_UTF8);
                }
                b = (b & 0x0f) << 18 | (n1 & 0x3f) << 12 | (n2 & 0x3f) << 6 | (n3 & 0x3f);
                min = 0x10000;
            }
            else {
                throw new Error(INVALID_UTF8);
            }
            if (b < min || (b >= 0xd800 && b <= 0xdfff)) {
                throw new Error(INVALID_UTF8);
            }
            if (b >= 0x10000) {
                // Surrogate pair.
                if (b > 0x10ffff) {
                    throw new Error(INVALID_UTF8);
                }
                b -= 0x10000;
                chars.push(String.fromCharCode(0xd800 | (b >> 10)));
                b = 0xdc00 | (b & 0x3ff);
            }
        }
        chars.push(String.fromCharCode(b));
    }
    return chars.join("");
}
exports.D4 = decode;


/***/ },

/***/ 601
(module, __unused_webpack_exports, __webpack_require__) {

(function(nacl) {
'use strict';

// Ported in 2014 by Dmitry Chestnykh and Devi Mandiri.
// Public domain.
//
// Implementation derived from TweetNaCl version 20140427.
// See for details: http://tweetnacl.cr.yp.to/

var gf = function(init) {
  var i, r = new Float64Array(16);
  if (init) for (i = 0; i < init.length; i++) r[i] = init[i];
  return r;
};

//  Pluggable, initialized in high-level API below.
var randombytes = function(/* x, n */) { throw new Error('no PRNG'); };

var _0 = new Uint8Array(16);
var _9 = new Uint8Array(32); _9[0] = 9;

var gf0 = gf(),
    gf1 = gf([1]),
    _121665 = gf([0xdb41, 1]),
    D = gf([0x78a3, 0x1359, 0x4dca, 0x75eb, 0xd8ab, 0x4141, 0x0a4d, 0x0070, 0xe898, 0x7779, 0x4079, 0x8cc7, 0xfe73, 0x2b6f, 0x6cee, 0x5203]),
    D2 = gf([0xf159, 0x26b2, 0x9b94, 0xebd6, 0xb156, 0x8283, 0x149a, 0x00e0, 0xd130, 0xeef3, 0x80f2, 0x198e, 0xfce7, 0x56df, 0xd9dc, 0x2406]),
    X = gf([0xd51a, 0x8f25, 0x2d60, 0xc956, 0xa7b2, 0x9525, 0xc760, 0x692c, 0xdc5c, 0xfdd6, 0xe231, 0xc0a4, 0x53fe, 0xcd6e, 0x36d3, 0x2169]),
    Y = gf([0x6658, 0x6666, 0x6666, 0x6666, 0x6666, 0x6666, 0x6666, 0x6666, 0x6666, 0x6666, 0x6666, 0x6666, 0x6666, 0x6666, 0x6666, 0x6666]),
    I = gf([0xa0b0, 0x4a0e, 0x1b27, 0xc4ee, 0xe478, 0xad2f, 0x1806, 0x2f43, 0xd7a7, 0x3dfb, 0x0099, 0x2b4d, 0xdf0b, 0x4fc1, 0x2480, 0x2b83]);

function ts64(x, i, h, l) {
  x[i]   = (h >> 24) & 0xff;
  x[i+1] = (h >> 16) & 0xff;
  x[i+2] = (h >>  8) & 0xff;
  x[i+3] = h & 0xff;
  x[i+4] = (l >> 24)  & 0xff;
  x[i+5] = (l >> 16)  & 0xff;
  x[i+6] = (l >>  8)  & 0xff;
  x[i+7] = l & 0xff;
}

function vn(x, xi, y, yi, n) {
  var i,d = 0;
  for (i = 0; i < n; i++) d |= x[xi+i]^y[yi+i];
  return (1 & ((d - 1) >>> 8)) - 1;
}

function crypto_verify_16(x, xi, y, yi) {
  return vn(x,xi,y,yi,16);
}

function crypto_verify_32(x, xi, y, yi) {
  return vn(x,xi,y,yi,32);
}

function core_salsa20(o, p, k, c) {
  var j0  = c[ 0] & 0xff | (c[ 1] & 0xff)<<8 | (c[ 2] & 0xff)<<16 | (c[ 3] & 0xff)<<24,
      j1  = k[ 0] & 0xff | (k[ 1] & 0xff)<<8 | (k[ 2] & 0xff)<<16 | (k[ 3] & 0xff)<<24,
      j2  = k[ 4] & 0xff | (k[ 5] & 0xff)<<8 | (k[ 6] & 0xff)<<16 | (k[ 7] & 0xff)<<24,
      j3  = k[ 8] & 0xff | (k[ 9] & 0xff)<<8 | (k[10] & 0xff)<<16 | (k[11] & 0xff)<<24,
      j4  = k[12] & 0xff | (k[13] & 0xff)<<8 | (k[14] & 0xff)<<16 | (k[15] & 0xff)<<24,
      j5  = c[ 4] & 0xff | (c[ 5] & 0xff)<<8 | (c[ 6] & 0xff)<<16 | (c[ 7] & 0xff)<<24,
      j6  = p[ 0] & 0xff | (p[ 1] & 0xff)<<8 | (p[ 2] & 0xff)<<16 | (p[ 3] & 0xff)<<24,
      j7  = p[ 4] & 0xff | (p[ 5] & 0xff)<<8 | (p[ 6] & 0xff)<<16 | (p[ 7] & 0xff)<<24,
      j8  = p[ 8] & 0xff | (p[ 9] & 0xff)<<8 | (p[10] & 0xff)<<16 | (p[11] & 0xff)<<24,
      j9  = p[12] & 0xff | (p[13] & 0xff)<<8 | (p[14] & 0xff)<<16 | (p[15] & 0xff)<<24,
      j10 = c[ 8] & 0xff | (c[ 9] & 0xff)<<8 | (c[10] & 0xff)<<16 | (c[11] & 0xff)<<24,
      j11 = k[16] & 0xff | (k[17] & 0xff)<<8 | (k[18] & 0xff)<<16 | (k[19] & 0xff)<<24,
      j12 = k[20] & 0xff | (k[21] & 0xff)<<8 | (k[22] & 0xff)<<16 | (k[23] & 0xff)<<24,
      j13 = k[24] & 0xff | (k[25] & 0xff)<<8 | (k[26] & 0xff)<<16 | (k[27] & 0xff)<<24,
      j14 = k[28] & 0xff | (k[29] & 0xff)<<8 | (k[30] & 0xff)<<16 | (k[31] & 0xff)<<24,
      j15 = c[12] & 0xff | (c[13] & 0xff)<<8 | (c[14] & 0xff)<<16 | (c[15] & 0xff)<<24;

  var x0 = j0, x1 = j1, x2 = j2, x3 = j3, x4 = j4, x5 = j5, x6 = j6, x7 = j7,
      x8 = j8, x9 = j9, x10 = j10, x11 = j11, x12 = j12, x13 = j13, x14 = j14,
      x15 = j15, u;

  for (var i = 0; i < 20; i += 2) {
    u = x0 + x12 | 0;
    x4 ^= u<<7 | u>>>(32-7);
    u = x4 + x0 | 0;
    x8 ^= u<<9 | u>>>(32-9);
    u = x8 + x4 | 0;
    x12 ^= u<<13 | u>>>(32-13);
    u = x12 + x8 | 0;
    x0 ^= u<<18 | u>>>(32-18);

    u = x5 + x1 | 0;
    x9 ^= u<<7 | u>>>(32-7);
    u = x9 + x5 | 0;
    x13 ^= u<<9 | u>>>(32-9);
    u = x13 + x9 | 0;
    x1 ^= u<<13 | u>>>(32-13);
    u = x1 + x13 | 0;
    x5 ^= u<<18 | u>>>(32-18);

    u = x10 + x6 | 0;
    x14 ^= u<<7 | u>>>(32-7);
    u = x14 + x10 | 0;
    x2 ^= u<<9 | u>>>(32-9);
    u = x2 + x14 | 0;
    x6 ^= u<<13 | u>>>(32-13);
    u = x6 + x2 | 0;
    x10 ^= u<<18 | u>>>(32-18);

    u = x15 + x11 | 0;
    x3 ^= u<<7 | u>>>(32-7);
    u = x3 + x15 | 0;
    x7 ^= u<<9 | u>>>(32-9);
    u = x7 + x3 | 0;
    x11 ^= u<<13 | u>>>(32-13);
    u = x11 + x7 | 0;
    x15 ^= u<<18 | u>>>(32-18);

    u = x0 + x3 | 0;
    x1 ^= u<<7 | u>>>(32-7);
    u = x1 + x0 | 0;
    x2 ^= u<<9 | u>>>(32-9);
    u = x2 + x1 | 0;
    x3 ^= u<<13 | u>>>(32-13);
    u = x3 + x2 | 0;
    x0 ^= u<<18 | u>>>(32-18);

    u = x5 + x4 | 0;
    x6 ^= u<<7 | u>>>(32-7);
    u = x6 + x5 | 0;
    x7 ^= u<<9 | u>>>(32-9);
    u = x7 + x6 | 0;
    x4 ^= u<<13 | u>>>(32-13);
    u = x4 + x7 | 0;
    x5 ^= u<<18 | u>>>(32-18);

    u = x10 + x9 | 0;
    x11 ^= u<<7 | u>>>(32-7);
    u = x11 + x10 | 0;
    x8 ^= u<<9 | u>>>(32-9);
    u = x8 + x11 | 0;
    x9 ^= u<<13 | u>>>(32-13);
    u = x9 + x8 | 0;
    x10 ^= u<<18 | u>>>(32-18);

    u = x15 + x14 | 0;
    x12 ^= u<<7 | u>>>(32-7);
    u = x12 + x15 | 0;
    x13 ^= u<<9 | u>>>(32-9);
    u = x13 + x12 | 0;
    x14 ^= u<<13 | u>>>(32-13);
    u = x14 + x13 | 0;
    x15 ^= u<<18 | u>>>(32-18);
  }
   x0 =  x0 +  j0 | 0;
   x1 =  x1 +  j1 | 0;
   x2 =  x2 +  j2 | 0;
   x3 =  x3 +  j3 | 0;
   x4 =  x4 +  j4 | 0;
   x5 =  x5 +  j5 | 0;
   x6 =  x6 +  j6 | 0;
   x7 =  x7 +  j7 | 0;
   x8 =  x8 +  j8 | 0;
   x9 =  x9 +  j9 | 0;
  x10 = x10 + j10 | 0;
  x11 = x11 + j11 | 0;
  x12 = x12 + j12 | 0;
  x13 = x13 + j13 | 0;
  x14 = x14 + j14 | 0;
  x15 = x15 + j15 | 0;

  o[ 0] = x0 >>>  0 & 0xff;
  o[ 1] = x0 >>>  8 & 0xff;
  o[ 2] = x0 >>> 16 & 0xff;
  o[ 3] = x0 >>> 24 & 0xff;

  o[ 4] = x1 >>>  0 & 0xff;
  o[ 5] = x1 >>>  8 & 0xff;
  o[ 6] = x1 >>> 16 & 0xff;
  o[ 7] = x1 >>> 24 & 0xff;

  o[ 8] = x2 >>>  0 & 0xff;
  o[ 9] = x2 >>>  8 & 0xff;
  o[10] = x2 >>> 16 & 0xff;
  o[11] = x2 >>> 24 & 0xff;

  o[12] = x3 >>>  0 & 0xff;
  o[13] = x3 >>>  8 & 0xff;
  o[14] = x3 >>> 16 & 0xff;
  o[15] = x3 >>> 24 & 0xff;

  o[16] = x4 >>>  0 & 0xff;
  o[17] = x4 >>>  8 & 0xff;
  o[18] = x4 >>> 16 & 0xff;
  o[19] = x4 >>> 24 & 0xff;

  o[20] = x5 >>>  0 & 0xff;
  o[21] = x5 >>>  8 & 0xff;
  o[22] = x5 >>> 16 & 0xff;
  o[23] = x5 >>> 24 & 0xff;

  o[24] = x6 >>>  0 & 0xff;
  o[25] = x6 >>>  8 & 0xff;
  o[26] = x6 >>> 16 & 0xff;
  o[27] = x6 >>> 24 & 0xff;

  o[28] = x7 >>>  0 & 0xff;
  o[29] = x7 >>>  8 & 0xff;
  o[30] = x7 >>> 16 & 0xff;
  o[31] = x7 >>> 24 & 0xff;

  o[32] = x8 >>>  0 & 0xff;
  o[33] = x8 >>>  8 & 0xff;
  o[34] = x8 >>> 16 & 0xff;
  o[35] = x8 >>> 24 & 0xff;

  o[36] = x9 >>>  0 & 0xff;
  o[37] = x9 >>>  8 & 0xff;
  o[38] = x9 >>> 16 & 0xff;
  o[39] = x9 >>> 24 & 0xff;

  o[40] = x10 >>>  0 & 0xff;
  o[41] = x10 >>>  8 & 0xff;
  o[42] = x10 >>> 16 & 0xff;
  o[43] = x10 >>> 24 & 0xff;

  o[44] = x11 >>>  0 & 0xff;
  o[45] = x11 >>>  8 & 0xff;
  o[46] = x11 >>> 16 & 0xff;
  o[47] = x11 >>> 24 & 0xff;

  o[48] = x12 >>>  0 & 0xff;
  o[49] = x12 >>>  8 & 0xff;
  o[50] = x12 >>> 16 & 0xff;
  o[51] = x12 >>> 24 & 0xff;

  o[52] = x13 >>>  0 & 0xff;
  o[53] = x13 >>>  8 & 0xff;
  o[54] = x13 >>> 16 & 0xff;
  o[55] = x13 >>> 24 & 0xff;

  o[56] = x14 >>>  0 & 0xff;
  o[57] = x14 >>>  8 & 0xff;
  o[58] = x14 >>> 16 & 0xff;
  o[59] = x14 >>> 24 & 0xff;

  o[60] = x15 >>>  0 & 0xff;
  o[61] = x15 >>>  8 & 0xff;
  o[62] = x15 >>> 16 & 0xff;
  o[63] = x15 >>> 24 & 0xff;
}

function core_hsalsa20(o,p,k,c) {
  var j0  = c[ 0] & 0xff | (c[ 1] & 0xff)<<8 | (c[ 2] & 0xff)<<16 | (c[ 3] & 0xff)<<24,
      j1  = k[ 0] & 0xff | (k[ 1] & 0xff)<<8 | (k[ 2] & 0xff)<<16 | (k[ 3] & 0xff)<<24,
      j2  = k[ 4] & 0xff | (k[ 5] & 0xff)<<8 | (k[ 6] & 0xff)<<16 | (k[ 7] & 0xff)<<24,
      j3  = k[ 8] & 0xff | (k[ 9] & 0xff)<<8 | (k[10] & 0xff)<<16 | (k[11] & 0xff)<<24,
      j4  = k[12] & 0xff | (k[13] & 0xff)<<8 | (k[14] & 0xff)<<16 | (k[15] & 0xff)<<24,
      j5  = c[ 4] & 0xff | (c[ 5] & 0xff)<<8 | (c[ 6] & 0xff)<<16 | (c[ 7] & 0xff)<<24,
      j6  = p[ 0] & 0xff | (p[ 1] & 0xff)<<8 | (p[ 2] & 0xff)<<16 | (p[ 3] & 0xff)<<24,
      j7  = p[ 4] & 0xff | (p[ 5] & 0xff)<<8 | (p[ 6] & 0xff)<<16 | (p[ 7] & 0xff)<<24,
      j8  = p[ 8] & 0xff | (p[ 9] & 0xff)<<8 | (p[10] & 0xff)<<16 | (p[11] & 0xff)<<24,
      j9  = p[12] & 0xff | (p[13] & 0xff)<<8 | (p[14] & 0xff)<<16 | (p[15] & 0xff)<<24,
      j10 = c[ 8] & 0xff | (c[ 9] & 0xff)<<8 | (c[10] & 0xff)<<16 | (c[11] & 0xff)<<24,
      j11 = k[16] & 0xff | (k[17] & 0xff)<<8 | (k[18] & 0xff)<<16 | (k[19] & 0xff)<<24,
      j12 = k[20] & 0xff | (k[21] & 0xff)<<8 | (k[22] & 0xff)<<16 | (k[23] & 0xff)<<24,
      j13 = k[24] & 0xff | (k[25] & 0xff)<<8 | (k[26] & 0xff)<<16 | (k[27] & 0xff)<<24,
      j14 = k[28] & 0xff | (k[29] & 0xff)<<8 | (k[30] & 0xff)<<16 | (k[31] & 0xff)<<24,
      j15 = c[12] & 0xff | (c[13] & 0xff)<<8 | (c[14] & 0xff)<<16 | (c[15] & 0xff)<<24;

  var x0 = j0, x1 = j1, x2 = j2, x3 = j3, x4 = j4, x5 = j5, x6 = j6, x7 = j7,
      x8 = j8, x9 = j9, x10 = j10, x11 = j11, x12 = j12, x13 = j13, x14 = j14,
      x15 = j15, u;

  for (var i = 0; i < 20; i += 2) {
    u = x0 + x12 | 0;
    x4 ^= u<<7 | u>>>(32-7);
    u = x4 + x0 | 0;
    x8 ^= u<<9 | u>>>(32-9);
    u = x8 + x4 | 0;
    x12 ^= u<<13 | u>>>(32-13);
    u = x12 + x8 | 0;
    x0 ^= u<<18 | u>>>(32-18);

    u = x5 + x1 | 0;
    x9 ^= u<<7 | u>>>(32-7);
    u = x9 + x5 | 0;
    x13 ^= u<<9 | u>>>(32-9);
    u = x13 + x9 | 0;
    x1 ^= u<<13 | u>>>(32-13);
    u = x1 + x13 | 0;
    x5 ^= u<<18 | u>>>(32-18);

    u = x10 + x6 | 0;
    x14 ^= u<<7 | u>>>(32-7);
    u = x14 + x10 | 0;
    x2 ^= u<<9 | u>>>(32-9);
    u = x2 + x14 | 0;
    x6 ^= u<<13 | u>>>(32-13);
    u = x6 + x2 | 0;
    x10 ^= u<<18 | u>>>(32-18);

    u = x15 + x11 | 0;
    x3 ^= u<<7 | u>>>(32-7);
    u = x3 + x15 | 0;
    x7 ^= u<<9 | u>>>(32-9);
    u = x7 + x3 | 0;
    x11 ^= u<<13 | u>>>(32-13);
    u = x11 + x7 | 0;
    x15 ^= u<<18 | u>>>(32-18);

    u = x0 + x3 | 0;
    x1 ^= u<<7 | u>>>(32-7);
    u = x1 + x0 | 0;
    x2 ^= u<<9 | u>>>(32-9);
    u = x2 + x1 | 0;
    x3 ^= u<<13 | u>>>(32-13);
    u = x3 + x2 | 0;
    x0 ^= u<<18 | u>>>(32-18);

    u = x5 + x4 | 0;
    x6 ^= u<<7 | u>>>(32-7);
    u = x6 + x5 | 0;
    x7 ^= u<<9 | u>>>(32-9);
    u = x7 + x6 | 0;
    x4 ^= u<<13 | u>>>(32-13);
    u = x4 + x7 | 0;
    x5 ^= u<<18 | u>>>(32-18);

    u = x10 + x9 | 0;
    x11 ^= u<<7 | u>>>(32-7);
    u = x11 + x10 | 0;
    x8 ^= u<<9 | u>>>(32-9);
    u = x8 + x11 | 0;
    x9 ^= u<<13 | u>>>(32-13);
    u = x9 + x8 | 0;
    x10 ^= u<<18 | u>>>(32-18);

    u = x15 + x14 | 0;
    x12 ^= u<<7 | u>>>(32-7);
    u = x12 + x15 | 0;
    x13 ^= u<<9 | u>>>(32-9);
    u = x13 + x12 | 0;
    x14 ^= u<<13 | u>>>(32-13);
    u = x14 + x13 | 0;
    x15 ^= u<<18 | u>>>(32-18);
  }

  o[ 0] = x0 >>>  0 & 0xff;
  o[ 1] = x0 >>>  8 & 0xff;
  o[ 2] = x0 >>> 16 & 0xff;
  o[ 3] = x0 >>> 24 & 0xff;

  o[ 4] = x5 >>>  0 & 0xff;
  o[ 5] = x5 >>>  8 & 0xff;
  o[ 6] = x5 >>> 16 & 0xff;
  o[ 7] = x5 >>> 24 & 0xff;

  o[ 8] = x10 >>>  0 & 0xff;
  o[ 9] = x10 >>>  8 & 0xff;
  o[10] = x10 >>> 16 & 0xff;
  o[11] = x10 >>> 24 & 0xff;

  o[12] = x15 >>>  0 & 0xff;
  o[13] = x15 >>>  8 & 0xff;
  o[14] = x15 >>> 16 & 0xff;
  o[15] = x15 >>> 24 & 0xff;

  o[16] = x6 >>>  0 & 0xff;
  o[17] = x6 >>>  8 & 0xff;
  o[18] = x6 >>> 16 & 0xff;
  o[19] = x6 >>> 24 & 0xff;

  o[20] = x7 >>>  0 & 0xff;
  o[21] = x7 >>>  8 & 0xff;
  o[22] = x7 >>> 16 & 0xff;
  o[23] = x7 >>> 24 & 0xff;

  o[24] = x8 >>>  0 & 0xff;
  o[25] = x8 >>>  8 & 0xff;
  o[26] = x8 >>> 16 & 0xff;
  o[27] = x8 >>> 24 & 0xff;

  o[28] = x9 >>>  0 & 0xff;
  o[29] = x9 >>>  8 & 0xff;
  o[30] = x9 >>> 16 & 0xff;
  o[31] = x9 >>> 24 & 0xff;
}

function crypto_core_salsa20(out,inp,k,c) {
  core_salsa20(out,inp,k,c);
}

function crypto_core_hsalsa20(out,inp,k,c) {
  core_hsalsa20(out,inp,k,c);
}

var sigma = new Uint8Array([101, 120, 112, 97, 110, 100, 32, 51, 50, 45, 98, 121, 116, 101, 32, 107]);
            // "expand 32-byte k"

function crypto_stream_salsa20_xor(c,cpos,m,mpos,b,n,k) {
  var z = new Uint8Array(16), x = new Uint8Array(64);
  var u, i;
  for (i = 0; i < 16; i++) z[i] = 0;
  for (i = 0; i < 8; i++) z[i] = n[i];
  while (b >= 64) {
    crypto_core_salsa20(x,z,k,sigma);
    for (i = 0; i < 64; i++) c[cpos+i] = m[mpos+i] ^ x[i];
    u = 1;
    for (i = 8; i < 16; i++) {
      u = u + (z[i] & 0xff) | 0;
      z[i] = u & 0xff;
      u >>>= 8;
    }
    b -= 64;
    cpos += 64;
    mpos += 64;
  }
  if (b > 0) {
    crypto_core_salsa20(x,z,k,sigma);
    for (i = 0; i < b; i++) c[cpos+i] = m[mpos+i] ^ x[i];
  }
  return 0;
}

function crypto_stream_salsa20(c,cpos,b,n,k) {
  var z = new Uint8Array(16), x = new Uint8Array(64);
  var u, i;
  for (i = 0; i < 16; i++) z[i] = 0;
  for (i = 0; i < 8; i++) z[i] = n[i];
  while (b >= 64) {
    crypto_core_salsa20(x,z,k,sigma);
    for (i = 0; i < 64; i++) c[cpos+i] = x[i];
    u = 1;
    for (i = 8; i < 16; i++) {
      u = u + (z[i] & 0xff) | 0;
      z[i] = u & 0xff;
      u >>>= 8;
    }
    b -= 64;
    cpos += 64;
  }
  if (b > 0) {
    crypto_core_salsa20(x,z,k,sigma);
    for (i = 0; i < b; i++) c[cpos+i] = x[i];
  }
  return 0;
}

function crypto_stream(c,cpos,d,n,k) {
  var s = new Uint8Array(32);
  crypto_core_hsalsa20(s,n,k,sigma);
  var sn = new Uint8Array(8);
  for (var i = 0; i < 8; i++) sn[i] = n[i+16];
  return crypto_stream_salsa20(c,cpos,d,sn,s);
}

function crypto_stream_xor(c,cpos,m,mpos,d,n,k) {
  var s = new Uint8Array(32);
  crypto_core_hsalsa20(s,n,k,sigma);
  var sn = new Uint8Array(8);
  for (var i = 0; i < 8; i++) sn[i] = n[i+16];
  return crypto_stream_salsa20_xor(c,cpos,m,mpos,d,sn,s);
}

/*
* Port of Andrew Moon's Poly1305-donna-16. Public domain.
* https://github.com/floodyberry/poly1305-donna
*/

var poly1305 = function(key) {
  this.buffer = new Uint8Array(16);
  this.r = new Uint16Array(10);
  this.h = new Uint16Array(10);
  this.pad = new Uint16Array(8);
  this.leftover = 0;
  this.fin = 0;

  var t0, t1, t2, t3, t4, t5, t6, t7;

  t0 = key[ 0] & 0xff | (key[ 1] & 0xff) << 8; this.r[0] = ( t0                     ) & 0x1fff;
  t1 = key[ 2] & 0xff | (key[ 3] & 0xff) << 8; this.r[1] = ((t0 >>> 13) | (t1 <<  3)) & 0x1fff;
  t2 = key[ 4] & 0xff | (key[ 5] & 0xff) << 8; this.r[2] = ((t1 >>> 10) | (t2 <<  6)) & 0x1f03;
  t3 = key[ 6] & 0xff | (key[ 7] & 0xff) << 8; this.r[3] = ((t2 >>>  7) | (t3 <<  9)) & 0x1fff;
  t4 = key[ 8] & 0xff | (key[ 9] & 0xff) << 8; this.r[4] = ((t3 >>>  4) | (t4 << 12)) & 0x00ff;
  this.r[5] = ((t4 >>>  1)) & 0x1ffe;
  t5 = key[10] & 0xff | (key[11] & 0xff) << 8; this.r[6] = ((t4 >>> 14) | (t5 <<  2)) & 0x1fff;
  t6 = key[12] & 0xff | (key[13] & 0xff) << 8; this.r[7] = ((t5 >>> 11) | (t6 <<  5)) & 0x1f81;
  t7 = key[14] & 0xff | (key[15] & 0xff) << 8; this.r[8] = ((t6 >>>  8) | (t7 <<  8)) & 0x1fff;
  this.r[9] = ((t7 >>>  5)) & 0x007f;

  this.pad[0] = key[16] & 0xff | (key[17] & 0xff) << 8;
  this.pad[1] = key[18] & 0xff | (key[19] & 0xff) << 8;
  this.pad[2] = key[20] & 0xff | (key[21] & 0xff) << 8;
  this.pad[3] = key[22] & 0xff | (key[23] & 0xff) << 8;
  this.pad[4] = key[24] & 0xff | (key[25] & 0xff) << 8;
  this.pad[5] = key[26] & 0xff | (key[27] & 0xff) << 8;
  this.pad[6] = key[28] & 0xff | (key[29] & 0xff) << 8;
  this.pad[7] = key[30] & 0xff | (key[31] & 0xff) << 8;
};

poly1305.prototype.blocks = function(m, mpos, bytes) {
  var hibit = this.fin ? 0 : (1 << 11);
  var t0, t1, t2, t3, t4, t5, t6, t7, c;
  var d0, d1, d2, d3, d4, d5, d6, d7, d8, d9;

  var h0 = this.h[0],
      h1 = this.h[1],
      h2 = this.h[2],
      h3 = this.h[3],
      h4 = this.h[4],
      h5 = this.h[5],
      h6 = this.h[6],
      h7 = this.h[7],
      h8 = this.h[8],
      h9 = this.h[9];

  var r0 = this.r[0],
      r1 = this.r[1],
      r2 = this.r[2],
      r3 = this.r[3],
      r4 = this.r[4],
      r5 = this.r[5],
      r6 = this.r[6],
      r7 = this.r[7],
      r8 = this.r[8],
      r9 = this.r[9];

  while (bytes >= 16) {
    t0 = m[mpos+ 0] & 0xff | (m[mpos+ 1] & 0xff) << 8; h0 += ( t0                     ) & 0x1fff;
    t1 = m[mpos+ 2] & 0xff | (m[mpos+ 3] & 0xff) << 8; h1 += ((t0 >>> 13) | (t1 <<  3)) & 0x1fff;
    t2 = m[mpos+ 4] & 0xff | (m[mpos+ 5] & 0xff) << 8; h2 += ((t1 >>> 10) | (t2 <<  6)) & 0x1fff;
    t3 = m[mpos+ 6] & 0xff | (m[mpos+ 7] & 0xff) << 8; h3 += ((t2 >>>  7) | (t3 <<  9)) & 0x1fff;
    t4 = m[mpos+ 8] & 0xff | (m[mpos+ 9] & 0xff) << 8; h4 += ((t3 >>>  4) | (t4 << 12)) & 0x1fff;
    h5 += ((t4 >>>  1)) & 0x1fff;
    t5 = m[mpos+10] & 0xff | (m[mpos+11] & 0xff) << 8; h6 += ((t4 >>> 14) | (t5 <<  2)) & 0x1fff;
    t6 = m[mpos+12] & 0xff | (m[mpos+13] & 0xff) << 8; h7 += ((t5 >>> 11) | (t6 <<  5)) & 0x1fff;
    t7 = m[mpos+14] & 0xff | (m[mpos+15] & 0xff) << 8; h8 += ((t6 >>>  8) | (t7 <<  8)) & 0x1fff;
    h9 += ((t7 >>> 5)) | hibit;

    c = 0;

    d0 = c;
    d0 += h0 * r0;
    d0 += h1 * (5 * r9);
    d0 += h2 * (5 * r8);
    d0 += h3 * (5 * r7);
    d0 += h4 * (5 * r6);
    c = (d0 >>> 13); d0 &= 0x1fff;
    d0 += h5 * (5 * r5);
    d0 += h6 * (5 * r4);
    d0 += h7 * (5 * r3);
    d0 += h8 * (5 * r2);
    d0 += h9 * (5 * r1);
    c += (d0 >>> 13); d0 &= 0x1fff;

    d1 = c;
    d1 += h0 * r1;
    d1 += h1 * r0;
    d1 += h2 * (5 * r9);
    d1 += h3 * (5 * r8);
    d1 += h4 * (5 * r7);
    c = (d1 >>> 13); d1 &= 0x1fff;
    d1 += h5 * (5 * r6);
    d1 += h6 * (5 * r5);
    d1 += h7 * (5 * r4);
    d1 += h8 * (5 * r3);
    d1 += h9 * (5 * r2);
    c += (d1 >>> 13); d1 &= 0x1fff;

    d2 = c;
    d2 += h0 * r2;
    d2 += h1 * r1;
    d2 += h2 * r0;
    d2 += h3 * (5 * r9);
    d2 += h4 * (5 * r8);
    c = (d2 >>> 13); d2 &= 0x1fff;
    d2 += h5 * (5 * r7);
    d2 += h6 * (5 * r6);
    d2 += h7 * (5 * r5);
    d2 += h8 * (5 * r4);
    d2 += h9 * (5 * r3);
    c += (d2 >>> 13); d2 &= 0x1fff;

    d3 = c;
    d3 += h0 * r3;
    d3 += h1 * r2;
    d3 += h2 * r1;
    d3 += h3 * r0;
    d3 += h4 * (5 * r9);
    c = (d3 >>> 13); d3 &= 0x1fff;
    d3 += h5 * (5 * r8);
    d3 += h6 * (5 * r7);
    d3 += h7 * (5 * r6);
    d3 += h8 * (5 * r5);
    d3 += h9 * (5 * r4);
    c += (d3 >>> 13); d3 &= 0x1fff;

    d4 = c;
    d4 += h0 * r4;
    d4 += h1 * r3;
    d4 += h2 * r2;
    d4 += h3 * r1;
    d4 += h4 * r0;
    c = (d4 >>> 13); d4 &= 0x1fff;
    d4 += h5 * (5 * r9);
    d4 += h6 * (5 * r8);
    d4 += h7 * (5 * r7);
    d4 += h8 * (5 * r6);
    d4 += h9 * (5 * r5);
    c += (d4 >>> 13); d4 &= 0x1fff;

    d5 = c;
    d5 += h0 * r5;
    d5 += h1 * r4;
    d5 += h2 * r3;
    d5 += h3 * r2;
    d5 += h4 * r1;
    c = (d5 >>> 13); d5 &= 0x1fff;
    d5 += h5 * r0;
    d5 += h6 * (5 * r9);
    d5 += h7 * (5 * r8);
    d5 += h8 * (5 * r7);
    d5 += h9 * (5 * r6);
    c += (d5 >>> 13); d5 &= 0x1fff;

    d6 = c;
    d6 += h0 * r6;
    d6 += h1 * r5;
    d6 += h2 * r4;
    d6 += h3 * r3;
    d6 += h4 * r2;
    c = (d6 >>> 13); d6 &= 0x1fff;
    d6 += h5 * r1;
    d6 += h6 * r0;
    d6 += h7 * (5 * r9);
    d6 += h8 * (5 * r8);
    d6 += h9 * (5 * r7);
    c += (d6 >>> 13); d6 &= 0x1fff;

    d7 = c;
    d7 += h0 * r7;
    d7 += h1 * r6;
    d7 += h2 * r5;
    d7 += h3 * r4;
    d7 += h4 * r3;
    c = (d7 >>> 13); d7 &= 0x1fff;
    d7 += h5 * r2;
    d7 += h6 * r1;
    d7 += h7 * r0;
    d7 += h8 * (5 * r9);
    d7 += h9 * (5 * r8);
    c += (d7 >>> 13); d7 &= 0x1fff;

    d8 = c;
    d8 += h0 * r8;
    d8 += h1 * r7;
    d8 += h2 * r6;
    d8 += h3 * r5;
    d8 += h4 * r4;
    c = (d8 >>> 13); d8 &= 0x1fff;
    d8 += h5 * r3;
    d8 += h6 * r2;
    d8 += h7 * r1;
    d8 += h8 * r0;
    d8 += h9 * (5 * r9);
    c += (d8 >>> 13); d8 &= 0x1fff;

    d9 = c;
    d9 += h0 * r9;
    d9 += h1 * r8;
    d9 += h2 * r7;
    d9 += h3 * r6;
    d9 += h4 * r5;
    c = (d9 >>> 13); d9 &= 0x1fff;
    d9 += h5 * r4;
    d9 += h6 * r3;
    d9 += h7 * r2;
    d9 += h8 * r1;
    d9 += h9 * r0;
    c += (d9 >>> 13); d9 &= 0x1fff;

    c = (((c << 2) + c)) | 0;
    c = (c + d0) | 0;
    d0 = c & 0x1fff;
    c = (c >>> 13);
    d1 += c;

    h0 = d0;
    h1 = d1;
    h2 = d2;
    h3 = d3;
    h4 = d4;
    h5 = d5;
    h6 = d6;
    h7 = d7;
    h8 = d8;
    h9 = d9;

    mpos += 16;
    bytes -= 16;
  }
  this.h[0] = h0;
  this.h[1] = h1;
  this.h[2] = h2;
  this.h[3] = h3;
  this.h[4] = h4;
  this.h[5] = h5;
  this.h[6] = h6;
  this.h[7] = h7;
  this.h[8] = h8;
  this.h[9] = h9;
};

poly1305.prototype.finish = function(mac, macpos) {
  var g = new Uint16Array(10);
  var c, mask, f, i;

  if (this.leftover) {
    i = this.leftover;
    this.buffer[i++] = 1;
    for (; i < 16; i++) this.buffer[i] = 0;
    this.fin = 1;
    this.blocks(this.buffer, 0, 16);
  }

  c = this.h[1] >>> 13;
  this.h[1] &= 0x1fff;
  for (i = 2; i < 10; i++) {
    this.h[i] += c;
    c = this.h[i] >>> 13;
    this.h[i] &= 0x1fff;
  }
  this.h[0] += (c * 5);
  c = this.h[0] >>> 13;
  this.h[0] &= 0x1fff;
  this.h[1] += c;
  c = this.h[1] >>> 13;
  this.h[1] &= 0x1fff;
  this.h[2] += c;

  g[0] = this.h[0] + 5;
  c = g[0] >>> 13;
  g[0] &= 0x1fff;
  for (i = 1; i < 10; i++) {
    g[i] = this.h[i] + c;
    c = g[i] >>> 13;
    g[i] &= 0x1fff;
  }
  g[9] -= (1 << 13);

  mask = (c ^ 1) - 1;
  for (i = 0; i < 10; i++) g[i] &= mask;
  mask = ~mask;
  for (i = 0; i < 10; i++) this.h[i] = (this.h[i] & mask) | g[i];

  this.h[0] = ((this.h[0]       ) | (this.h[1] << 13)                    ) & 0xffff;
  this.h[1] = ((this.h[1] >>>  3) | (this.h[2] << 10)                    ) & 0xffff;
  this.h[2] = ((this.h[2] >>>  6) | (this.h[3] <<  7)                    ) & 0xffff;
  this.h[3] = ((this.h[3] >>>  9) | (this.h[4] <<  4)                    ) & 0xffff;
  this.h[4] = ((this.h[4] >>> 12) | (this.h[5] <<  1) | (this.h[6] << 14)) & 0xffff;
  this.h[5] = ((this.h[6] >>>  2) | (this.h[7] << 11)                    ) & 0xffff;
  this.h[6] = ((this.h[7] >>>  5) | (this.h[8] <<  8)                    ) & 0xffff;
  this.h[7] = ((this.h[8] >>>  8) | (this.h[9] <<  5)                    ) & 0xffff;

  f = this.h[0] + this.pad[0];
  this.h[0] = f & 0xffff;
  for (i = 1; i < 8; i++) {
    f = (((this.h[i] + this.pad[i]) | 0) + (f >>> 16)) | 0;
    this.h[i] = f & 0xffff;
  }

  mac[macpos+ 0] = (this.h[0] >>> 0) & 0xff;
  mac[macpos+ 1] = (this.h[0] >>> 8) & 0xff;
  mac[macpos+ 2] = (this.h[1] >>> 0) & 0xff;
  mac[macpos+ 3] = (this.h[1] >>> 8) & 0xff;
  mac[macpos+ 4] = (this.h[2] >>> 0) & 0xff;
  mac[macpos+ 5] = (this.h[2] >>> 8) & 0xff;
  mac[macpos+ 6] = (this.h[3] >>> 0) & 0xff;
  mac[macpos+ 7] = (this.h[3] >>> 8) & 0xff;
  mac[macpos+ 8] = (this.h[4] >>> 0) & 0xff;
  mac[macpos+ 9] = (this.h[4] >>> 8) & 0xff;
  mac[macpos+10] = (this.h[5] >>> 0) & 0xff;
  mac[macpos+11] = (this.h[5] >>> 8) & 0xff;
  mac[macpos+12] = (this.h[6] >>> 0) & 0xff;
  mac[macpos+13] = (this.h[6] >>> 8) & 0xff;
  mac[macpos+14] = (this.h[7] >>> 0) & 0xff;
  mac[macpos+15] = (this.h[7] >>> 8) & 0xff;
};

poly1305.prototype.update = function(m, mpos, bytes) {
  var i, want;

  if (this.leftover) {
    want = (16 - this.leftover);
    if (want > bytes)
      want = bytes;
    for (i = 0; i < want; i++)
      this.buffer[this.leftover + i] = m[mpos+i];
    bytes -= want;
    mpos += want;
    this.leftover += want;
    if (this.leftover < 16)
      return;
    this.blocks(this.buffer, 0, 16);
    this.leftover = 0;
  }

  if (bytes >= 16) {
    want = bytes - (bytes % 16);
    this.blocks(m, mpos, want);
    mpos += want;
    bytes -= want;
  }

  if (bytes) {
    for (i = 0; i < bytes; i++)
      this.buffer[this.leftover + i] = m[mpos+i];
    this.leftover += bytes;
  }
};

function crypto_onetimeauth(out, outpos, m, mpos, n, k) {
  var s = new poly1305(k);
  s.update(m, mpos, n);
  s.finish(out, outpos);
  return 0;
}

function crypto_onetimeauth_verify(h, hpos, m, mpos, n, k) {
  var x = new Uint8Array(16);
  crypto_onetimeauth(x,0,m,mpos,n,k);
  return crypto_verify_16(h,hpos,x,0);
}

function crypto_secretbox(c,m,d,n,k) {
  var i;
  if (d < 32) return -1;
  crypto_stream_xor(c,0,m,0,d,n,k);
  crypto_onetimeauth(c, 16, c, 32, d - 32, c);
  for (i = 0; i < 16; i++) c[i] = 0;
  return 0;
}

function crypto_secretbox_open(m,c,d,n,k) {
  var i;
  var x = new Uint8Array(32);
  if (d < 32) return -1;
  crypto_stream(x,0,32,n,k);
  if (crypto_onetimeauth_verify(c, 16,c, 32,d - 32,x) !== 0) return -1;
  crypto_stream_xor(m,0,c,0,d,n,k);
  for (i = 0; i < 32; i++) m[i] = 0;
  return 0;
}

function set25519(r, a) {
  var i;
  for (i = 0; i < 16; i++) r[i] = a[i]|0;
}

function car25519(o) {
  var i, v, c = 1;
  for (i = 0; i < 16; i++) {
    v = o[i] + c + 65535;
    c = Math.floor(v / 65536);
    o[i] = v - c * 65536;
  }
  o[0] += c-1 + 37 * (c-1);
}

function sel25519(p, q, b) {
  var t, c = ~(b-1);
  for (var i = 0; i < 16; i++) {
    t = c & (p[i] ^ q[i]);
    p[i] ^= t;
    q[i] ^= t;
  }
}

function pack25519(o, n) {
  var i, j, b;
  var m = gf(), t = gf();
  for (i = 0; i < 16; i++) t[i] = n[i];
  car25519(t);
  car25519(t);
  car25519(t);
  for (j = 0; j < 2; j++) {
    m[0] = t[0] - 0xffed;
    for (i = 1; i < 15; i++) {
      m[i] = t[i] - 0xffff - ((m[i-1]>>16) & 1);
      m[i-1] &= 0xffff;
    }
    m[15] = t[15] - 0x7fff - ((m[14]>>16) & 1);
    b = (m[15]>>16) & 1;
    m[14] &= 0xffff;
    sel25519(t, m, 1-b);
  }
  for (i = 0; i < 16; i++) {
    o[2*i] = t[i] & 0xff;
    o[2*i+1] = t[i]>>8;
  }
}

function neq25519(a, b) {
  var c = new Uint8Array(32), d = new Uint8Array(32);
  pack25519(c, a);
  pack25519(d, b);
  return crypto_verify_32(c, 0, d, 0);
}

function par25519(a) {
  var d = new Uint8Array(32);
  pack25519(d, a);
  return d[0] & 1;
}

function unpack25519(o, n) {
  var i;
  for (i = 0; i < 16; i++) o[i] = n[2*i] + (n[2*i+1] << 8);
  o[15] &= 0x7fff;
}

function A(o, a, b) {
  for (var i = 0; i < 16; i++) o[i] = a[i] + b[i];
}

function Z(o, a, b) {
  for (var i = 0; i < 16; i++) o[i] = a[i] - b[i];
}

function M(o, a, b) {
  var v, c,
     t0 = 0,  t1 = 0,  t2 = 0,  t3 = 0,  t4 = 0,  t5 = 0,  t6 = 0,  t7 = 0,
     t8 = 0,  t9 = 0, t10 = 0, t11 = 0, t12 = 0, t13 = 0, t14 = 0, t15 = 0,
    t16 = 0, t17 = 0, t18 = 0, t19 = 0, t20 = 0, t21 = 0, t22 = 0, t23 = 0,
    t24 = 0, t25 = 0, t26 = 0, t27 = 0, t28 = 0, t29 = 0, t30 = 0,
    b0 = b[0],
    b1 = b[1],
    b2 = b[2],
    b3 = b[3],
    b4 = b[4],
    b5 = b[5],
    b6 = b[6],
    b7 = b[7],
    b8 = b[8],
    b9 = b[9],
    b10 = b[10],
    b11 = b[11],
    b12 = b[12],
    b13 = b[13],
    b14 = b[14],
    b15 = b[15];

  v = a[0];
  t0 += v * b0;
  t1 += v * b1;
  t2 += v * b2;
  t3 += v * b3;
  t4 += v * b4;
  t5 += v * b5;
  t6 += v * b6;
  t7 += v * b7;
  t8 += v * b8;
  t9 += v * b9;
  t10 += v * b10;
  t11 += v * b11;
  t12 += v * b12;
  t13 += v * b13;
  t14 += v * b14;
  t15 += v * b15;
  v = a[1];
  t1 += v * b0;
  t2 += v * b1;
  t3 += v * b2;
  t4 += v * b3;
  t5 += v * b4;
  t6 += v * b5;
  t7 += v * b6;
  t8 += v * b7;
  t9 += v * b8;
  t10 += v * b9;
  t11 += v * b10;
  t12 += v * b11;
  t13 += v * b12;
  t14 += v * b13;
  t15 += v * b14;
  t16 += v * b15;
  v = a[2];
  t2 += v * b0;
  t3 += v * b1;
  t4 += v * b2;
  t5 += v * b3;
  t6 += v * b4;
  t7 += v * b5;
  t8 += v * b6;
  t9 += v * b7;
  t10 += v * b8;
  t11 += v * b9;
  t12 += v * b10;
  t13 += v * b11;
  t14 += v * b12;
  t15 += v * b13;
  t16 += v * b14;
  t17 += v * b15;
  v = a[3];
  t3 += v * b0;
  t4 += v * b1;
  t5 += v * b2;
  t6 += v * b3;
  t7 += v * b4;
  t8 += v * b5;
  t9 += v * b6;
  t10 += v * b7;
  t11 += v * b8;
  t12 += v * b9;
  t13 += v * b10;
  t14 += v * b11;
  t15 += v * b12;
  t16 += v * b13;
  t17 += v * b14;
  t18 += v * b15;
  v = a[4];
  t4 += v * b0;
  t5 += v * b1;
  t6 += v * b2;
  t7 += v * b3;
  t8 += v * b4;
  t9 += v * b5;
  t10 += v * b6;
  t11 += v * b7;
  t12 += v * b8;
  t13 += v * b9;
  t14 += v * b10;
  t15 += v * b11;
  t16 += v * b12;
  t17 += v * b13;
  t18 += v * b14;
  t19 += v * b15;
  v = a[5];
  t5 += v * b0;
  t6 += v * b1;
  t7 += v * b2;
  t8 += v * b3;
  t9 += v * b4;
  t10 += v * b5;
  t11 += v * b6;
  t12 += v * b7;
  t13 += v * b8;
  t14 += v * b9;
  t15 += v * b10;
  t16 += v * b11;
  t17 += v * b12;
  t18 += v * b13;
  t19 += v * b14;
  t20 += v * b15;
  v = a[6];
  t6 += v * b0;
  t7 += v * b1;
  t8 += v * b2;
  t9 += v * b3;
  t10 += v * b4;
  t11 += v * b5;
  t12 += v * b6;
  t13 += v * b7;
  t14 += v * b8;
  t15 += v * b9;
  t16 += v * b10;
  t17 += v * b11;
  t18 += v * b12;
  t19 += v * b13;
  t20 += v * b14;
  t21 += v * b15;
  v = a[7];
  t7 += v * b0;
  t8 += v * b1;
  t9 += v * b2;
  t10 += v * b3;
  t11 += v * b4;
  t12 += v * b5;
  t13 += v * b6;
  t14 += v * b7;
  t15 += v * b8;
  t16 += v * b9;
  t17 += v * b10;
  t18 += v * b11;
  t19 += v * b12;
  t20 += v * b13;
  t21 += v * b14;
  t22 += v * b15;
  v = a[8];
  t8 += v * b0;
  t9 += v * b1;
  t10 += v * b2;
  t11 += v * b3;
  t12 += v * b4;
  t13 += v * b5;
  t14 += v * b6;
  t15 += v * b7;
  t16 += v * b8;
  t17 += v * b9;
  t18 += v * b10;
  t19 += v * b11;
  t20 += v * b12;
  t21 += v * b13;
  t22 += v * b14;
  t23 += v * b15;
  v = a[9];
  t9 += v * b0;
  t10 += v * b1;
  t11 += v * b2;
  t12 += v * b3;
  t13 += v * b4;
  t14 += v * b5;
  t15 += v * b6;
  t16 += v * b7;
  t17 += v * b8;
  t18 += v * b9;
  t19 += v * b10;
  t20 += v * b11;
  t21 += v * b12;
  t22 += v * b13;
  t23 += v * b14;
  t24 += v * b15;
  v = a[10];
  t10 += v * b0;
  t11 += v * b1;
  t12 += v * b2;
  t13 += v * b3;
  t14 += v * b4;
  t15 += v * b5;
  t16 += v * b6;
  t17 += v * b7;
  t18 += v * b8;
  t19 += v * b9;
  t20 += v * b10;
  t21 += v * b11;
  t22 += v * b12;
  t23 += v * b13;
  t24 += v * b14;
  t25 += v * b15;
  v = a[11];
  t11 += v * b0;
  t12 += v * b1;
  t13 += v * b2;
  t14 += v * b3;
  t15 += v * b4;
  t16 += v * b5;
  t17 += v * b6;
  t18 += v * b7;
  t19 += v * b8;
  t20 += v * b9;
  t21 += v * b10;
  t22 += v * b11;
  t23 += v * b12;
  t24 += v * b13;
  t25 += v * b14;
  t26 += v * b15;
  v = a[12];
  t12 += v * b0;
  t13 += v * b1;
  t14 += v * b2;
  t15 += v * b3;
  t16 += v * b4;
  t17 += v * b5;
  t18 += v * b6;
  t19 += v * b7;
  t20 += v * b8;
  t21 += v * b9;
  t22 += v * b10;
  t23 += v * b11;
  t24 += v * b12;
  t25 += v * b13;
  t26 += v * b14;
  t27 += v * b15;
  v = a[13];
  t13 += v * b0;
  t14 += v * b1;
  t15 += v * b2;
  t16 += v * b3;
  t17 += v * b4;
  t18 += v * b5;
  t19 += v * b6;
  t20 += v * b7;
  t21 += v * b8;
  t22 += v * b9;
  t23 += v * b10;
  t24 += v * b11;
  t25 += v * b12;
  t26 += v * b13;
  t27 += v * b14;
  t28 += v * b15;
  v = a[14];
  t14 += v * b0;
  t15 += v * b1;
  t16 += v * b2;
  t17 += v * b3;
  t18 += v * b4;
  t19 += v * b5;
  t20 += v * b6;
  t21 += v * b7;
  t22 += v * b8;
  t23 += v * b9;
  t24 += v * b10;
  t25 += v * b11;
  t26 += v * b12;
  t27 += v * b13;
  t28 += v * b14;
  t29 += v * b15;
  v = a[15];
  t15 += v * b0;
  t16 += v * b1;
  t17 += v * b2;
  t18 += v * b3;
  t19 += v * b4;
  t20 += v * b5;
  t21 += v * b6;
  t22 += v * b7;
  t23 += v * b8;
  t24 += v * b9;
  t25 += v * b10;
  t26 += v * b11;
  t27 += v * b12;
  t28 += v * b13;
  t29 += v * b14;
  t30 += v * b15;

  t0  += 38 * t16;
  t1  += 38 * t17;
  t2  += 38 * t18;
  t3  += 38 * t19;
  t4  += 38 * t20;
  t5  += 38 * t21;
  t6  += 38 * t22;
  t7  += 38 * t23;
  t8  += 38 * t24;
  t9  += 38 * t25;
  t10 += 38 * t26;
  t11 += 38 * t27;
  t12 += 38 * t28;
  t13 += 38 * t29;
  t14 += 38 * t30;
  // t15 left as is

  // first car
  c = 1;
  v =  t0 + c + 65535; c = Math.floor(v / 65536);  t0 = v - c * 65536;
  v =  t1 + c + 65535; c = Math.floor(v / 65536);  t1 = v - c * 65536;
  v =  t2 + c + 65535; c = Math.floor(v / 65536);  t2 = v - c * 65536;
  v =  t3 + c + 65535; c = Math.floor(v / 65536);  t3 = v - c * 65536;
  v =  t4 + c + 65535; c = Math.floor(v / 65536);  t4 = v - c * 65536;
  v =  t5 + c + 65535; c = Math.floor(v / 65536);  t5 = v - c * 65536;
  v =  t6 + c + 65535; c = Math.floor(v / 65536);  t6 = v - c * 65536;
  v =  t7 + c + 65535; c = Math.floor(v / 65536);  t7 = v - c * 65536;
  v =  t8 + c + 65535; c = Math.floor(v / 65536);  t8 = v - c * 65536;
  v =  t9 + c + 65535; c = Math.floor(v / 65536);  t9 = v - c * 65536;
  v = t10 + c + 65535; c = Math.floor(v / 65536); t10 = v - c * 65536;
  v = t11 + c + 65535; c = Math.floor(v / 65536); t11 = v - c * 65536;
  v = t12 + c + 65535; c = Math.floor(v / 65536); t12 = v - c * 65536;
  v = t13 + c + 65535; c = Math.floor(v / 65536); t13 = v - c * 65536;
  v = t14 + c + 65535; c = Math.floor(v / 65536); t14 = v - c * 65536;
  v = t15 + c + 65535; c = Math.floor(v / 65536); t15 = v - c * 65536;
  t0 += c-1 + 37 * (c-1);

  // second car
  c = 1;
  v =  t0 + c + 65535; c = Math.floor(v / 65536);  t0 = v - c * 65536;
  v =  t1 + c + 65535; c = Math.floor(v / 65536);  t1 = v - c * 65536;
  v =  t2 + c + 65535; c = Math.floor(v / 65536);  t2 = v - c * 65536;
  v =  t3 + c + 65535; c = Math.floor(v / 65536);  t3 = v - c * 65536;
  v =  t4 + c + 65535; c = Math.floor(v / 65536);  t4 = v - c * 65536;
  v =  t5 + c + 65535; c = Math.floor(v / 65536);  t5 = v - c * 65536;
  v =  t6 + c + 65535; c = Math.floor(v / 65536);  t6 = v - c * 65536;
  v =  t7 + c + 65535; c = Math.floor(v / 65536);  t7 = v - c * 65536;
  v =  t8 + c + 65535; c = Math.floor(v / 65536);  t8 = v - c * 65536;
  v =  t9 + c + 65535; c = Math.floor(v / 65536);  t9 = v - c * 65536;
  v = t10 + c + 65535; c = Math.floor(v / 65536); t10 = v - c * 65536;
  v = t11 + c + 65535; c = Math.floor(v / 65536); t11 = v - c * 65536;
  v = t12 + c + 65535; c = Math.floor(v / 65536); t12 = v - c * 65536;
  v = t13 + c + 65535; c = Math.floor(v / 65536); t13 = v - c * 65536;
  v = t14 + c + 65535; c = Math.floor(v / 65536); t14 = v - c * 65536;
  v = t15 + c + 65535; c = Math.floor(v / 65536); t15 = v - c * 65536;
  t0 += c-1 + 37 * (c-1);

  o[ 0] = t0;
  o[ 1] = t1;
  o[ 2] = t2;
  o[ 3] = t3;
  o[ 4] = t4;
  o[ 5] = t5;
  o[ 6] = t6;
  o[ 7] = t7;
  o[ 8] = t8;
  o[ 9] = t9;
  o[10] = t10;
  o[11] = t11;
  o[12] = t12;
  o[13] = t13;
  o[14] = t14;
  o[15] = t15;
}

function S(o, a) {
  M(o, a, a);
}

function inv25519(o, i) {
  var c = gf();
  var a;
  for (a = 0; a < 16; a++) c[a] = i[a];
  for (a = 253; a >= 0; a--) {
    S(c, c);
    if(a !== 2 && a !== 4) M(c, c, i);
  }
  for (a = 0; a < 16; a++) o[a] = c[a];
}

function pow2523(o, i) {
  var c = gf();
  var a;
  for (a = 0; a < 16; a++) c[a] = i[a];
  for (a = 250; a >= 0; a--) {
      S(c, c);
      if(a !== 1) M(c, c, i);
  }
  for (a = 0; a < 16; a++) o[a] = c[a];
}

function crypto_scalarmult(q, n, p) {
  var z = new Uint8Array(32);
  var x = new Float64Array(80), r, i;
  var a = gf(), b = gf(), c = gf(),
      d = gf(), e = gf(), f = gf();
  for (i = 0; i < 31; i++) z[i] = n[i];
  z[31]=(n[31]&127)|64;
  z[0]&=248;
  unpack25519(x,p);
  for (i = 0; i < 16; i++) {
    b[i]=x[i];
    d[i]=a[i]=c[i]=0;
  }
  a[0]=d[0]=1;
  for (i=254; i>=0; --i) {
    r=(z[i>>>3]>>>(i&7))&1;
    sel25519(a,b,r);
    sel25519(c,d,r);
    A(e,a,c);
    Z(a,a,c);
    A(c,b,d);
    Z(b,b,d);
    S(d,e);
    S(f,a);
    M(a,c,a);
    M(c,b,e);
    A(e,a,c);
    Z(a,a,c);
    S(b,a);
    Z(c,d,f);
    M(a,c,_121665);
    A(a,a,d);
    M(c,c,a);
    M(a,d,f);
    M(d,b,x);
    S(b,e);
    sel25519(a,b,r);
    sel25519(c,d,r);
  }
  for (i = 0; i < 16; i++) {
    x[i+16]=a[i];
    x[i+32]=c[i];
    x[i+48]=b[i];
    x[i+64]=d[i];
  }
  var x32 = x.subarray(32);
  var x16 = x.subarray(16);
  inv25519(x32,x32);
  M(x16,x16,x32);
  pack25519(q,x16);
  return 0;
}

function crypto_scalarmult_base(q, n) {
  return crypto_scalarmult(q, n, _9);
}

function crypto_box_keypair(y, x) {
  randombytes(x, 32);
  return crypto_scalarmult_base(y, x);
}

function crypto_box_beforenm(k, y, x) {
  var s = new Uint8Array(32);
  crypto_scalarmult(s, x, y);
  return crypto_core_hsalsa20(k, _0, s, sigma);
}

var crypto_box_afternm = crypto_secretbox;
var crypto_box_open_afternm = crypto_secretbox_open;

function crypto_box(c, m, d, n, y, x) {
  var k = new Uint8Array(32);
  crypto_box_beforenm(k, y, x);
  return crypto_box_afternm(c, m, d, n, k);
}

function crypto_box_open(m, c, d, n, y, x) {
  var k = new Uint8Array(32);
  crypto_box_beforenm(k, y, x);
  return crypto_box_open_afternm(m, c, d, n, k);
}

var K = [
  0x428a2f98, 0xd728ae22, 0x71374491, 0x23ef65cd,
  0xb5c0fbcf, 0xec4d3b2f, 0xe9b5dba5, 0x8189dbbc,
  0x3956c25b, 0xf348b538, 0x59f111f1, 0xb605d019,
  0x923f82a4, 0xaf194f9b, 0xab1c5ed5, 0xda6d8118,
  0xd807aa98, 0xa3030242, 0x12835b01, 0x45706fbe,
  0x243185be, 0x4ee4b28c, 0x550c7dc3, 0xd5ffb4e2,
  0x72be5d74, 0xf27b896f, 0x80deb1fe, 0x3b1696b1,
  0x9bdc06a7, 0x25c71235, 0xc19bf174, 0xcf692694,
  0xe49b69c1, 0x9ef14ad2, 0xefbe4786, 0x384f25e3,
  0x0fc19dc6, 0x8b8cd5b5, 0x240ca1cc, 0x77ac9c65,
  0x2de92c6f, 0x592b0275, 0x4a7484aa, 0x6ea6e483,
  0x5cb0a9dc, 0xbd41fbd4, 0x76f988da, 0x831153b5,
  0x983e5152, 0xee66dfab, 0xa831c66d, 0x2db43210,
  0xb00327c8, 0x98fb213f, 0xbf597fc7, 0xbeef0ee4,
  0xc6e00bf3, 0x3da88fc2, 0xd5a79147, 0x930aa725,
  0x06ca6351, 0xe003826f, 0x14292967, 0x0a0e6e70,
  0x27b70a85, 0x46d22ffc, 0x2e1b2138, 0x5c26c926,
  0x4d2c6dfc, 0x5ac42aed, 0x53380d13, 0x9d95b3df,
  0x650a7354, 0x8baf63de, 0x766a0abb, 0x3c77b2a8,
  0x81c2c92e, 0x47edaee6, 0x92722c85, 0x1482353b,
  0xa2bfe8a1, 0x4cf10364, 0xa81a664b, 0xbc423001,
  0xc24b8b70, 0xd0f89791, 0xc76c51a3, 0x0654be30,
  0xd192e819, 0xd6ef5218, 0xd6990624, 0x5565a910,
  0xf40e3585, 0x5771202a, 0x106aa070, 0x32bbd1b8,
  0x19a4c116, 0xb8d2d0c8, 0x1e376c08, 0x5141ab53,
  0x2748774c, 0xdf8eeb99, 0x34b0bcb5, 0xe19b48a8,
  0x391c0cb3, 0xc5c95a63, 0x4ed8aa4a, 0xe3418acb,
  0x5b9cca4f, 0x7763e373, 0x682e6ff3, 0xd6b2b8a3,
  0x748f82ee, 0x5defb2fc, 0x78a5636f, 0x43172f60,
  0x84c87814, 0xa1f0ab72, 0x8cc70208, 0x1a6439ec,
  0x90befffa, 0x23631e28, 0xa4506ceb, 0xde82bde9,
  0xbef9a3f7, 0xb2c67915, 0xc67178f2, 0xe372532b,
  0xca273ece, 0xea26619c, 0xd186b8c7, 0x21c0c207,
  0xeada7dd6, 0xcde0eb1e, 0xf57d4f7f, 0xee6ed178,
  0x06f067aa, 0x72176fba, 0x0a637dc5, 0xa2c898a6,
  0x113f9804, 0xbef90dae, 0x1b710b35, 0x131c471b,
  0x28db77f5, 0x23047d84, 0x32caab7b, 0x40c72493,
  0x3c9ebe0a, 0x15c9bebc, 0x431d67c4, 0x9c100d4c,
  0x4cc5d4be, 0xcb3e42b6, 0x597f299c, 0xfc657e2a,
  0x5fcb6fab, 0x3ad6faec, 0x6c44198c, 0x4a475817
];

function crypto_hashblocks_hl(hh, hl, m, n) {
  var wh = new Int32Array(16), wl = new Int32Array(16),
      bh0, bh1, bh2, bh3, bh4, bh5, bh6, bh7,
      bl0, bl1, bl2, bl3, bl4, bl5, bl6, bl7,
      th, tl, i, j, h, l, a, b, c, d;

  var ah0 = hh[0],
      ah1 = hh[1],
      ah2 = hh[2],
      ah3 = hh[3],
      ah4 = hh[4],
      ah5 = hh[5],
      ah6 = hh[6],
      ah7 = hh[7],

      al0 = hl[0],
      al1 = hl[1],
      al2 = hl[2],
      al3 = hl[3],
      al4 = hl[4],
      al5 = hl[5],
      al6 = hl[6],
      al7 = hl[7];

  var pos = 0;
  while (n >= 128) {
    for (i = 0; i < 16; i++) {
      j = 8 * i + pos;
      wh[i] = (m[j+0] << 24) | (m[j+1] << 16) | (m[j+2] << 8) | m[j+3];
      wl[i] = (m[j+4] << 24) | (m[j+5] << 16) | (m[j+6] << 8) | m[j+7];
    }
    for (i = 0; i < 80; i++) {
      bh0 = ah0;
      bh1 = ah1;
      bh2 = ah2;
      bh3 = ah3;
      bh4 = ah4;
      bh5 = ah5;
      bh6 = ah6;
      bh7 = ah7;

      bl0 = al0;
      bl1 = al1;
      bl2 = al2;
      bl3 = al3;
      bl4 = al4;
      bl5 = al5;
      bl6 = al6;
      bl7 = al7;

      // add
      h = ah7;
      l = al7;

      a = l & 0xffff; b = l >>> 16;
      c = h & 0xffff; d = h >>> 16;

      // Sigma1
      h = ((ah4 >>> 14) | (al4 << (32-14))) ^ ((ah4 >>> 18) | (al4 << (32-18))) ^ ((al4 >>> (41-32)) | (ah4 << (32-(41-32))));
      l = ((al4 >>> 14) | (ah4 << (32-14))) ^ ((al4 >>> 18) | (ah4 << (32-18))) ^ ((ah4 >>> (41-32)) | (al4 << (32-(41-32))));

      a += l & 0xffff; b += l >>> 16;
      c += h & 0xffff; d += h >>> 16;

      // Ch
      h = (ah4 & ah5) ^ (~ah4 & ah6);
      l = (al4 & al5) ^ (~al4 & al6);

      a += l & 0xffff; b += l >>> 16;
      c += h & 0xffff; d += h >>> 16;

      // K
      h = K[i*2];
      l = K[i*2+1];

      a += l & 0xffff; b += l >>> 16;
      c += h & 0xffff; d += h >>> 16;

      // w
      h = wh[i%16];
      l = wl[i%16];

      a += l & 0xffff; b += l >>> 16;
      c += h & 0xffff; d += h >>> 16;

      b += a >>> 16;
      c += b >>> 16;
      d += c >>> 16;

      th = c & 0xffff | d << 16;
      tl = a & 0xffff | b << 16;

      // add
      h = th;
      l = tl;

      a = l & 0xffff; b = l >>> 16;
      c = h & 0xffff; d = h >>> 16;

      // Sigma0
      h = ((ah0 >>> 28) | (al0 << (32-28))) ^ ((al0 >>> (34-32)) | (ah0 << (32-(34-32)))) ^ ((al0 >>> (39-32)) | (ah0 << (32-(39-32))));
      l = ((al0 >>> 28) | (ah0 << (32-28))) ^ ((ah0 >>> (34-32)) | (al0 << (32-(34-32)))) ^ ((ah0 >>> (39-32)) | (al0 << (32-(39-32))));

      a += l & 0xffff; b += l >>> 16;
      c += h & 0xffff; d += h >>> 16;

      // Maj
      h = (ah0 & ah1) ^ (ah0 & ah2) ^ (ah1 & ah2);
      l = (al0 & al1) ^ (al0 & al2) ^ (al1 & al2);

      a += l & 0xffff; b += l >>> 16;
      c += h & 0xffff; d += h >>> 16;

      b += a >>> 16;
      c += b >>> 16;
      d += c >>> 16;

      bh7 = (c & 0xffff) | (d << 16);
      bl7 = (a & 0xffff) | (b << 16);

      // add
      h = bh3;
      l = bl3;

      a = l & 0xffff; b = l >>> 16;
      c = h & 0xffff; d = h >>> 16;

      h = th;
      l = tl;

      a += l & 0xffff; b += l >>> 16;
      c += h & 0xffff; d += h >>> 16;

      b += a >>> 16;
      c += b >>> 16;
      d += c >>> 16;

      bh3 = (c & 0xffff) | (d << 16);
      bl3 = (a & 0xffff) | (b << 16);

      ah1 = bh0;
      ah2 = bh1;
      ah3 = bh2;
      ah4 = bh3;
      ah5 = bh4;
      ah6 = bh5;
      ah7 = bh6;
      ah0 = bh7;

      al1 = bl0;
      al2 = bl1;
      al3 = bl2;
      al4 = bl3;
      al5 = bl4;
      al6 = bl5;
      al7 = bl6;
      al0 = bl7;

      if (i%16 === 15) {
        for (j = 0; j < 16; j++) {
          // add
          h = wh[j];
          l = wl[j];

          a = l & 0xffff; b = l >>> 16;
          c = h & 0xffff; d = h >>> 16;

          h = wh[(j+9)%16];
          l = wl[(j+9)%16];

          a += l & 0xffff; b += l >>> 16;
          c += h & 0xffff; d += h >>> 16;

          // sigma0
          th = wh[(j+1)%16];
          tl = wl[(j+1)%16];
          h = ((th >>> 1) | (tl << (32-1))) ^ ((th >>> 8) | (tl << (32-8))) ^ (th >>> 7);
          l = ((tl >>> 1) | (th << (32-1))) ^ ((tl >>> 8) | (th << (32-8))) ^ ((tl >>> 7) | (th << (32-7)));

          a += l & 0xffff; b += l >>> 16;
          c += h & 0xffff; d += h >>> 16;

          // sigma1
          th = wh[(j+14)%16];
          tl = wl[(j+14)%16];
          h = ((th >>> 19) | (tl << (32-19))) ^ ((tl >>> (61-32)) | (th << (32-(61-32)))) ^ (th >>> 6);
          l = ((tl >>> 19) | (th << (32-19))) ^ ((th >>> (61-32)) | (tl << (32-(61-32)))) ^ ((tl >>> 6) | (th << (32-6)));

          a += l & 0xffff; b += l >>> 16;
          c += h & 0xffff; d += h >>> 16;

          b += a >>> 16;
          c += b >>> 16;
          d += c >>> 16;

          wh[j] = (c & 0xffff) | (d << 16);
          wl[j] = (a & 0xffff) | (b << 16);
        }
      }
    }

    // add
    h = ah0;
    l = al0;

    a = l & 0xffff; b = l >>> 16;
    c = h & 0xffff; d = h >>> 16;

    h = hh[0];
    l = hl[0];

    a += l & 0xffff; b += l >>> 16;
    c += h & 0xffff; d += h >>> 16;

    b += a >>> 16;
    c += b >>> 16;
    d += c >>> 16;

    hh[0] = ah0 = (c & 0xffff) | (d << 16);
    hl[0] = al0 = (a & 0xffff) | (b << 16);

    h = ah1;
    l = al1;

    a = l & 0xffff; b = l >>> 16;
    c = h & 0xffff; d = h >>> 16;

    h = hh[1];
    l = hl[1];

    a += l & 0xffff; b += l >>> 16;
    c += h & 0xffff; d += h >>> 16;

    b += a >>> 16;
    c += b >>> 16;
    d += c >>> 16;

    hh[1] = ah1 = (c & 0xffff) | (d << 16);
    hl[1] = al1 = (a & 0xffff) | (b << 16);

    h = ah2;
    l = al2;

    a = l & 0xffff; b = l >>> 16;
    c = h & 0xffff; d = h >>> 16;

    h = hh[2];
    l = hl[2];

    a += l & 0xffff; b += l >>> 16;
    c += h & 0xffff; d += h >>> 16;

    b += a >>> 16;
    c += b >>> 16;
    d += c >>> 16;

    hh[2] = ah2 = (c & 0xffff) | (d << 16);
    hl[2] = al2 = (a & 0xffff) | (b << 16);

    h = ah3;
    l = al3;

    a = l & 0xffff; b = l >>> 16;
    c = h & 0xffff; d = h >>> 16;

    h = hh[3];
    l = hl[3];

    a += l & 0xffff; b += l >>> 16;
    c += h & 0xffff; d += h >>> 16;

    b += a >>> 16;
    c += b >>> 16;
    d += c >>> 16;

    hh[3] = ah3 = (c & 0xffff) | (d << 16);
    hl[3] = al3 = (a & 0xffff) | (b << 16);

    h = ah4;
    l = al4;

    a = l & 0xffff; b = l >>> 16;
    c = h & 0xffff; d = h >>> 16;

    h = hh[4];
    l = hl[4];

    a += l & 0xffff; b += l >>> 16;
    c += h & 0xffff; d += h >>> 16;

    b += a >>> 16;
    c += b >>> 16;
    d += c >>> 16;

    hh[4] = ah4 = (c & 0xffff) | (d << 16);
    hl[4] = al4 = (a & 0xffff) | (b << 16);

    h = ah5;
    l = al5;

    a = l & 0xffff; b = l >>> 16;
    c = h & 0xffff; d = h >>> 16;

    h = hh[5];
    l = hl[5];

    a += l & 0xffff; b += l >>> 16;
    c += h & 0xffff; d += h >>> 16;

    b += a >>> 16;
    c += b >>> 16;
    d += c >>> 16;

    hh[5] = ah5 = (c & 0xffff) | (d << 16);
    hl[5] = al5 = (a & 0xffff) | (b << 16);

    h = ah6;
    l = al6;

    a = l & 0xffff; b = l >>> 16;
    c = h & 0xffff; d = h >>> 16;

    h = hh[6];
    l = hl[6];

    a += l & 0xffff; b += l >>> 16;
    c += h & 0xffff; d += h >>> 16;

    b += a >>> 16;
    c += b >>> 16;
    d += c >>> 16;

    hh[6] = ah6 = (c & 0xffff) | (d << 16);
    hl[6] = al6 = (a & 0xffff) | (b << 16);

    h = ah7;
    l = al7;

    a = l & 0xffff; b = l >>> 16;
    c = h & 0xffff; d = h >>> 16;

    h = hh[7];
    l = hl[7];

    a += l & 0xffff; b += l >>> 16;
    c += h & 0xffff; d += h >>> 16;

    b += a >>> 16;
    c += b >>> 16;
    d += c >>> 16;

    hh[7] = ah7 = (c & 0xffff) | (d << 16);
    hl[7] = al7 = (a & 0xffff) | (b << 16);

    pos += 128;
    n -= 128;
  }

  return n;
}

function crypto_hash(out, m, n) {
  var hh = new Int32Array(8),
      hl = new Int32Array(8),
      x = new Uint8Array(256),
      i, b = n;

  hh[0] = 0x6a09e667;
  hh[1] = 0xbb67ae85;
  hh[2] = 0x3c6ef372;
  hh[3] = 0xa54ff53a;
  hh[4] = 0x510e527f;
  hh[5] = 0x9b05688c;
  hh[6] = 0x1f83d9ab;
  hh[7] = 0x5be0cd19;

  hl[0] = 0xf3bcc908;
  hl[1] = 0x84caa73b;
  hl[2] = 0xfe94f82b;
  hl[3] = 0x5f1d36f1;
  hl[4] = 0xade682d1;
  hl[5] = 0x2b3e6c1f;
  hl[6] = 0xfb41bd6b;
  hl[7] = 0x137e2179;

  crypto_hashblocks_hl(hh, hl, m, n);
  n %= 128;

  for (i = 0; i < n; i++) x[i] = m[b-n+i];
  x[n] = 128;

  n = 256-128*(n<112?1:0);
  x[n-9] = 0;
  ts64(x, n-8,  (b / 0x20000000) | 0, b << 3);
  crypto_hashblocks_hl(hh, hl, x, n);

  for (i = 0; i < 8; i++) ts64(out, 8*i, hh[i], hl[i]);

  return 0;
}

function add(p, q) {
  var a = gf(), b = gf(), c = gf(),
      d = gf(), e = gf(), f = gf(),
      g = gf(), h = gf(), t = gf();

  Z(a, p[1], p[0]);
  Z(t, q[1], q[0]);
  M(a, a, t);
  A(b, p[0], p[1]);
  A(t, q[0], q[1]);
  M(b, b, t);
  M(c, p[3], q[3]);
  M(c, c, D2);
  M(d, p[2], q[2]);
  A(d, d, d);
  Z(e, b, a);
  Z(f, d, c);
  A(g, d, c);
  A(h, b, a);

  M(p[0], e, f);
  M(p[1], h, g);
  M(p[2], g, f);
  M(p[3], e, h);
}

function cswap(p, q, b) {
  var i;
  for (i = 0; i < 4; i++) {
    sel25519(p[i], q[i], b);
  }
}

function pack(r, p) {
  var tx = gf(), ty = gf(), zi = gf();
  inv25519(zi, p[2]);
  M(tx, p[0], zi);
  M(ty, p[1], zi);
  pack25519(r, ty);
  r[31] ^= par25519(tx) << 7;
}

function scalarmult(p, q, s) {
  var b, i;
  set25519(p[0], gf0);
  set25519(p[1], gf1);
  set25519(p[2], gf1);
  set25519(p[3], gf0);
  for (i = 255; i >= 0; --i) {
    b = (s[(i/8)|0] >> (i&7)) & 1;
    cswap(p, q, b);
    add(q, p);
    add(p, p);
    cswap(p, q, b);
  }
}

function scalarbase(p, s) {
  var q = [gf(), gf(), gf(), gf()];
  set25519(q[0], X);
  set25519(q[1], Y);
  set25519(q[2], gf1);
  M(q[3], X, Y);
  scalarmult(p, q, s);
}

function crypto_sign_keypair(pk, sk, seeded) {
  var d = new Uint8Array(64);
  var p = [gf(), gf(), gf(), gf()];
  var i;

  if (!seeded) randombytes(sk, 32);
  crypto_hash(d, sk, 32);
  d[0] &= 248;
  d[31] &= 127;
  d[31] |= 64;

  scalarbase(p, d);
  pack(pk, p);

  for (i = 0; i < 32; i++) sk[i+32] = pk[i];
  return 0;
}

var L = new Float64Array([0xed, 0xd3, 0xf5, 0x5c, 0x1a, 0x63, 0x12, 0x58, 0xd6, 0x9c, 0xf7, 0xa2, 0xde, 0xf9, 0xde, 0x14, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0x10]);

function modL(r, x) {
  var carry, i, j, k;
  for (i = 63; i >= 32; --i) {
    carry = 0;
    for (j = i - 32, k = i - 12; j < k; ++j) {
      x[j] += carry - 16 * x[i] * L[j - (i - 32)];
      carry = Math.floor((x[j] + 128) / 256);
      x[j] -= carry * 256;
    }
    x[j] += carry;
    x[i] = 0;
  }
  carry = 0;
  for (j = 0; j < 32; j++) {
    x[j] += carry - (x[31] >> 4) * L[j];
    carry = x[j] >> 8;
    x[j] &= 255;
  }
  for (j = 0; j < 32; j++) x[j] -= carry * L[j];
  for (i = 0; i < 32; i++) {
    x[i+1] += x[i] >> 8;
    r[i] = x[i] & 255;
  }
}

function reduce(r) {
  var x = new Float64Array(64), i;
  for (i = 0; i < 64; i++) x[i] = r[i];
  for (i = 0; i < 64; i++) r[i] = 0;
  modL(r, x);
}

// Note: difference from C - smlen returned, not passed as argument.
function crypto_sign(sm, m, n, sk) {
  var d = new Uint8Array(64), h = new Uint8Array(64), r = new Uint8Array(64);
  var i, j, x = new Float64Array(64);
  var p = [gf(), gf(), gf(), gf()];

  crypto_hash(d, sk, 32);
  d[0] &= 248;
  d[31] &= 127;
  d[31] |= 64;

  var smlen = n + 64;
  for (i = 0; i < n; i++) sm[64 + i] = m[i];
  for (i = 0; i < 32; i++) sm[32 + i] = d[32 + i];

  crypto_hash(r, sm.subarray(32), n+32);
  reduce(r);
  scalarbase(p, r);
  pack(sm, p);

  for (i = 32; i < 64; i++) sm[i] = sk[i];
  crypto_hash(h, sm, n + 64);
  reduce(h);

  for (i = 0; i < 64; i++) x[i] = 0;
  for (i = 0; i < 32; i++) x[i] = r[i];
  for (i = 0; i < 32; i++) {
    for (j = 0; j < 32; j++) {
      x[i+j] += h[i] * d[j];
    }
  }

  modL(sm.subarray(32), x);
  return smlen;
}

function unpackneg(r, p) {
  var t = gf(), chk = gf(), num = gf(),
      den = gf(), den2 = gf(), den4 = gf(),
      den6 = gf();

  set25519(r[2], gf1);
  unpack25519(r[1], p);
  S(num, r[1]);
  M(den, num, D);
  Z(num, num, r[2]);
  A(den, r[2], den);

  S(den2, den);
  S(den4, den2);
  M(den6, den4, den2);
  M(t, den6, num);
  M(t, t, den);

  pow2523(t, t);
  M(t, t, num);
  M(t, t, den);
  M(t, t, den);
  M(r[0], t, den);

  S(chk, r[0]);
  M(chk, chk, den);
  if (neq25519(chk, num)) M(r[0], r[0], I);

  S(chk, r[0]);
  M(chk, chk, den);
  if (neq25519(chk, num)) return -1;

  if (par25519(r[0]) === (p[31]>>7)) Z(r[0], gf0, r[0]);

  M(r[3], r[0], r[1]);
  return 0;
}

function crypto_sign_open(m, sm, n, pk) {
  var i;
  var t = new Uint8Array(32), h = new Uint8Array(64);
  var p = [gf(), gf(), gf(), gf()],
      q = [gf(), gf(), gf(), gf()];

  if (n < 64) return -1;

  if (unpackneg(q, pk)) return -1;

  for (i = 0; i < n; i++) m[i] = sm[i];
  for (i = 0; i < 32; i++) m[i+32] = pk[i];
  crypto_hash(h, m, n);
  reduce(h);
  scalarmult(p, q, h);

  scalarbase(q, sm.subarray(32));
  add(p, q);
  pack(t, p);

  n -= 64;
  if (crypto_verify_32(sm, 0, t, 0)) {
    for (i = 0; i < n; i++) m[i] = 0;
    return -1;
  }

  for (i = 0; i < n; i++) m[i] = sm[i + 64];
  return n;
}

var crypto_secretbox_KEYBYTES = 32,
    crypto_secretbox_NONCEBYTES = 24,
    crypto_secretbox_ZEROBYTES = 32,
    crypto_secretbox_BOXZEROBYTES = 16,
    crypto_scalarmult_BYTES = 32,
    crypto_scalarmult_SCALARBYTES = 32,
    crypto_box_PUBLICKEYBYTES = 32,
    crypto_box_SECRETKEYBYTES = 32,
    crypto_box_BEFORENMBYTES = 32,
    crypto_box_NONCEBYTES = crypto_secretbox_NONCEBYTES,
    crypto_box_ZEROBYTES = crypto_secretbox_ZEROBYTES,
    crypto_box_BOXZEROBYTES = crypto_secretbox_BOXZEROBYTES,
    crypto_sign_BYTES = 64,
    crypto_sign_PUBLICKEYBYTES = 32,
    crypto_sign_SECRETKEYBYTES = 64,
    crypto_sign_SEEDBYTES = 32,
    crypto_hash_BYTES = 64;

nacl.lowlevel = {
  crypto_core_hsalsa20: crypto_core_hsalsa20,
  crypto_stream_xor: crypto_stream_xor,
  crypto_stream: crypto_stream,
  crypto_stream_salsa20_xor: crypto_stream_salsa20_xor,
  crypto_stream_salsa20: crypto_stream_salsa20,
  crypto_onetimeauth: crypto_onetimeauth,
  crypto_onetimeauth_verify: crypto_onetimeauth_verify,
  crypto_verify_16: crypto_verify_16,
  crypto_verify_32: crypto_verify_32,
  crypto_secretbox: crypto_secretbox,
  crypto_secretbox_open: crypto_secretbox_open,
  crypto_scalarmult: crypto_scalarmult,
  crypto_scalarmult_base: crypto_scalarmult_base,
  crypto_box_beforenm: crypto_box_beforenm,
  crypto_box_afternm: crypto_box_afternm,
  crypto_box: crypto_box,
  crypto_box_open: crypto_box_open,
  crypto_box_keypair: crypto_box_keypair,
  crypto_hash: crypto_hash,
  crypto_sign: crypto_sign,
  crypto_sign_keypair: crypto_sign_keypair,
  crypto_sign_open: crypto_sign_open,

  crypto_secretbox_KEYBYTES: crypto_secretbox_KEYBYTES,
  crypto_secretbox_NONCEBYTES: crypto_secretbox_NONCEBYTES,
  crypto_secretbox_ZEROBYTES: crypto_secretbox_ZEROBYTES,
  crypto_secretbox_BOXZEROBYTES: crypto_secretbox_BOXZEROBYTES,
  crypto_scalarmult_BYTES: crypto_scalarmult_BYTES,
  crypto_scalarmult_SCALARBYTES: crypto_scalarmult_SCALARBYTES,
  crypto_box_PUBLICKEYBYTES: crypto_box_PUBLICKEYBYTES,
  crypto_box_SECRETKEYBYTES: crypto_box_SECRETKEYBYTES,
  crypto_box_BEFORENMBYTES: crypto_box_BEFORENMBYTES,
  crypto_box_NONCEBYTES: crypto_box_NONCEBYTES,
  crypto_box_ZEROBYTES: crypto_box_ZEROBYTES,
  crypto_box_BOXZEROBYTES: crypto_box_BOXZEROBYTES,
  crypto_sign_BYTES: crypto_sign_BYTES,
  crypto_sign_PUBLICKEYBYTES: crypto_sign_PUBLICKEYBYTES,
  crypto_sign_SECRETKEYBYTES: crypto_sign_SECRETKEYBYTES,
  crypto_sign_SEEDBYTES: crypto_sign_SEEDBYTES,
  crypto_hash_BYTES: crypto_hash_BYTES,

  gf: gf,
  D: D,
  L: L,
  pack25519: pack25519,
  unpack25519: unpack25519,
  M: M,
  A: A,
  S: S,
  Z: Z,
  pow2523: pow2523,
  add: add,
  set25519: set25519,
  modL: modL,
  scalarmult: scalarmult,
  scalarbase: scalarbase,
};

/* High-level API */

function checkLengths(k, n) {
  if (k.length !== crypto_secretbox_KEYBYTES) throw new Error('bad key size');
  if (n.length !== crypto_secretbox_NONCEBYTES) throw new Error('bad nonce size');
}

function checkBoxLengths(pk, sk) {
  if (pk.length !== crypto_box_PUBLICKEYBYTES) throw new Error('bad public key size');
  if (sk.length !== crypto_box_SECRETKEYBYTES) throw new Error('bad secret key size');
}

function checkArrayTypes() {
  for (var i = 0; i < arguments.length; i++) {
    if (!(arguments[i] instanceof Uint8Array))
      throw new TypeError('unexpected type, use Uint8Array');
  }
}

function cleanup(arr) {
  for (var i = 0; i < arr.length; i++) arr[i] = 0;
}

nacl.randomBytes = function(n) {
  var b = new Uint8Array(n);
  randombytes(b, n);
  return b;
};

nacl.secretbox = function(msg, nonce, key) {
  checkArrayTypes(msg, nonce, key);
  checkLengths(key, nonce);
  var m = new Uint8Array(crypto_secretbox_ZEROBYTES + msg.length);
  var c = new Uint8Array(m.length);
  for (var i = 0; i < msg.length; i++) m[i+crypto_secretbox_ZEROBYTES] = msg[i];
  crypto_secretbox(c, m, m.length, nonce, key);
  return c.subarray(crypto_secretbox_BOXZEROBYTES);
};

nacl.secretbox.open = function(box, nonce, key) {
  checkArrayTypes(box, nonce, key);
  checkLengths(key, nonce);
  var c = new Uint8Array(crypto_secretbox_BOXZEROBYTES + box.length);
  var m = new Uint8Array(c.length);
  for (var i = 0; i < box.length; i++) c[i+crypto_secretbox_BOXZEROBYTES] = box[i];
  if (c.length < 32) return null;
  if (crypto_secretbox_open(m, c, c.length, nonce, key) !== 0) return null;
  return m.subarray(crypto_secretbox_ZEROBYTES);
};

nacl.secretbox.keyLength = crypto_secretbox_KEYBYTES;
nacl.secretbox.nonceLength = crypto_secretbox_NONCEBYTES;
nacl.secretbox.overheadLength = crypto_secretbox_BOXZEROBYTES;

nacl.scalarMult = function(n, p) {
  checkArrayTypes(n, p);
  if (n.length !== crypto_scalarmult_SCALARBYTES) throw new Error('bad n size');
  if (p.length !== crypto_scalarmult_BYTES) throw new Error('bad p size');
  var q = new Uint8Array(crypto_scalarmult_BYTES);
  crypto_scalarmult(q, n, p);
  return q;
};

nacl.scalarMult.base = function(n) {
  checkArrayTypes(n);
  if (n.length !== crypto_scalarmult_SCALARBYTES) throw new Error('bad n size');
  var q = new Uint8Array(crypto_scalarmult_BYTES);
  crypto_scalarmult_base(q, n);
  return q;
};

nacl.scalarMult.scalarLength = crypto_scalarmult_SCALARBYTES;
nacl.scalarMult.groupElementLength = crypto_scalarmult_BYTES;

nacl.box = function(msg, nonce, publicKey, secretKey) {
  var k = nacl.box.before(publicKey, secretKey);
  return nacl.secretbox(msg, nonce, k);
};

nacl.box.before = function(publicKey, secretKey) {
  checkArrayTypes(publicKey, secretKey);
  checkBoxLengths(publicKey, secretKey);
  var k = new Uint8Array(crypto_box_BEFORENMBYTES);
  crypto_box_beforenm(k, publicKey, secretKey);
  return k;
};

nacl.box.after = nacl.secretbox;

nacl.box.open = function(msg, nonce, publicKey, secretKey) {
  var k = nacl.box.before(publicKey, secretKey);
  return nacl.secretbox.open(msg, nonce, k);
};

nacl.box.open.after = nacl.secretbox.open;

nacl.box.keyPair = function() {
  var pk = new Uint8Array(crypto_box_PUBLICKEYBYTES);
  var sk = new Uint8Array(crypto_box_SECRETKEYBYTES);
  crypto_box_keypair(pk, sk);
  return {publicKey: pk, secretKey: sk};
};

nacl.box.keyPair.fromSecretKey = function(secretKey) {
  checkArrayTypes(secretKey);
  if (secretKey.length !== crypto_box_SECRETKEYBYTES)
    throw new Error('bad secret key size');
  var pk = new Uint8Array(crypto_box_PUBLICKEYBYTES);
  crypto_scalarmult_base(pk, secretKey);
  return {publicKey: pk, secretKey: new Uint8Array(secretKey)};
};

nacl.box.publicKeyLength = crypto_box_PUBLICKEYBYTES;
nacl.box.secretKeyLength = crypto_box_SECRETKEYBYTES;
nacl.box.sharedKeyLength = crypto_box_BEFORENMBYTES;
nacl.box.nonceLength = crypto_box_NONCEBYTES;
nacl.box.overheadLength = nacl.secretbox.overheadLength;

nacl.sign = function(msg, secretKey) {
  checkArrayTypes(msg, secretKey);
  if (secretKey.length !== crypto_sign_SECRETKEYBYTES)
    throw new Error('bad secret key size');
  var signedMsg = new Uint8Array(crypto_sign_BYTES+msg.length);
  crypto_sign(signedMsg, msg, msg.length, secretKey);
  return signedMsg;
};

nacl.sign.open = function(signedMsg, publicKey) {
  checkArrayTypes(signedMsg, publicKey);
  if (publicKey.length !== crypto_sign_PUBLICKEYBYTES)
    throw new Error('bad public key size');
  var tmp = new Uint8Array(signedMsg.length);
  var mlen = crypto_sign_open(tmp, signedMsg, signedMsg.length, publicKey);
  if (mlen < 0) return null;
  var m = new Uint8Array(mlen);
  for (var i = 0; i < m.length; i++) m[i] = tmp[i];
  return m;
};

nacl.sign.detached = function(msg, secretKey) {
  var signedMsg = nacl.sign(msg, secretKey);
  var sig = new Uint8Array(crypto_sign_BYTES);
  for (var i = 0; i < sig.length; i++) sig[i] = signedMsg[i];
  return sig;
};

nacl.sign.detached.verify = function(msg, sig, publicKey) {
  checkArrayTypes(msg, sig, publicKey);
  if (sig.length !== crypto_sign_BYTES)
    throw new Error('bad signature size');
  if (publicKey.length !== crypto_sign_PUBLICKEYBYTES)
    throw new Error('bad public key size');
  var sm = new Uint8Array(crypto_sign_BYTES + msg.length);
  var m = new Uint8Array(crypto_sign_BYTES + msg.length);
  var i;
  for (i = 0; i < crypto_sign_BYTES; i++) sm[i] = sig[i];
  for (i = 0; i < msg.length; i++) sm[i+crypto_sign_BYTES] = msg[i];
  return (crypto_sign_open(m, sm, sm.length, publicKey) >= 0);
};

nacl.sign.keyPair = function() {
  var pk = new Uint8Array(crypto_sign_PUBLICKEYBYTES);
  var sk = new Uint8Array(crypto_sign_SECRETKEYBYTES);
  crypto_sign_keypair(pk, sk);
  return {publicKey: pk, secretKey: sk};
};

nacl.sign.keyPair.fromSecretKey = function(secretKey) {
  checkArrayTypes(secretKey);
  if (secretKey.length !== crypto_sign_SECRETKEYBYTES)
    throw new Error('bad secret key size');
  var pk = new Uint8Array(crypto_sign_PUBLICKEYBYTES);
  for (var i = 0; i < pk.length; i++) pk[i] = secretKey[32+i];
  return {publicKey: pk, secretKey: new Uint8Array(secretKey)};
};

nacl.sign.keyPair.fromSeed = function(seed) {
  checkArrayTypes(seed);
  if (seed.length !== crypto_sign_SEEDBYTES)
    throw new Error('bad seed size');
  var pk = new Uint8Array(crypto_sign_PUBLICKEYBYTES);
  var sk = new Uint8Array(crypto_sign_SECRETKEYBYTES);
  for (var i = 0; i < 32; i++) sk[i] = seed[i];
  crypto_sign_keypair(pk, sk, true);
  return {publicKey: pk, secretKey: sk};
};

nacl.sign.publicKeyLength = crypto_sign_PUBLICKEYBYTES;
nacl.sign.secretKeyLength = crypto_sign_SECRETKEYBYTES;
nacl.sign.seedLength = crypto_sign_SEEDBYTES;
nacl.sign.signatureLength = crypto_sign_BYTES;

nacl.hash = function(msg) {
  checkArrayTypes(msg);
  var h = new Uint8Array(crypto_hash_BYTES);
  crypto_hash(h, msg, msg.length);
  return h;
};

nacl.hash.hashLength = crypto_hash_BYTES;

nacl.verify = function(x, y) {
  checkArrayTypes(x, y);
  // Zero length arguments are considered not equal.
  if (x.length === 0 || y.length === 0) return false;
  if (x.length !== y.length) return false;
  return (vn(x, 0, y, 0, x.length) === 0) ? true : false;
};

nacl.setPRNG = function(fn) {
  randombytes = fn;
};

(function() {
  // Initialize PRNG if environment provides CSPRNG.
  // If not, methods calling randombytes will throw.
  var crypto = typeof self !== 'undefined' ? (self.crypto || self.msCrypto) : null;
  if (crypto && crypto.getRandomValues) {
    // Browsers.
    var QUOTA = 65536;
    nacl.setPRNG(function(x, n) {
      var i, v = new Uint8Array(n);
      for (i = 0; i < n; i += QUOTA) {
        crypto.getRandomValues(v.subarray(i, i + Math.min(n - i, QUOTA)));
      }
      for (i = 0; i < n; i++) x[i] = v[i];
      cleanup(v);
    });
  } else if (true) {
    // Node.js.
    crypto = __webpack_require__(281);
    if (crypto && crypto.randomBytes) {
      nacl.setPRNG(function(x, n) {
        var i, v = crypto.randomBytes(n);
        for (i = 0; i < n; i++) x[i] = v[i];
        cleanup(v);
      });
    }
  }
})();

})( true && module.exports ? module.exports : (self.nacl = self.nacl || {}));


/***/ },

/***/ 42
(module, __unused_webpack_exports, __webpack_require__) {

module.exports = __webpack_require__(499)["default"];


/***/ },

/***/ 499
(__unused_webpack_module, __webpack_exports__, __webpack_require__) {

"use strict";

// EXPORTS
__webpack_require__.d(__webpack_exports__, {
  "default": () => (/* binding */ PusherWithEncryption)
});

;// ./src/runtimes/web/dom/script_receiver_factory.ts
class ScriptReceiverFactory {
    constructor(prefix, name) {
        this.lastId = 0;
        this.prefix = prefix;
        this.name = name;
    }
    create(callback) {
        this.lastId++;
        var number = this.lastId;
        var id = this.prefix + number;
        var name = this.name + '[' + number + ']';
        var called = false;
        var callbackWrapper = function () {
            if (!called) {
                callback.apply(null, arguments);
                called = true;
            }
        };
        this[number] = callbackWrapper;
        return { number: number, id: id, name: name, callback: callbackWrapper };
    }
    remove(receiver) {
        delete this[receiver.number];
    }
}
var ScriptReceivers = new ScriptReceiverFactory('_pusher_script_', 'Pusher.ScriptReceivers');

;// ./src/core/defaults.ts
var Defaults = {
    VERSION: "8.5.0",
    PROTOCOL: 7,
    wsPort: 80,
    wssPort: 443,
    wsPath: '',
    httpHost: 'sockjs.pusher.com',
    httpPort: 80,
    httpsPort: 443,
    httpPath: '/pusher',
    stats_host: 'stats.pusher.com',
    authEndpoint: '/pusher/auth',
    authTransport: 'ajax',
    activityTimeout: 120000,
    pongTimeout: 30000,
    unavailableTimeout: 10000,
    userAuthentication: {
        endpoint: '/pusher/user-auth',
        transport: 'ajax',
    },
    channelAuthorization: {
        endpoint: '/pusher/auth',
        transport: 'ajax',
    },
    cdn_http: "http://js.pusher.com",
    cdn_https: "https://js.pusher.com",
    dependency_suffix: "",
};
/* harmony default export */ const defaults = (Defaults);

;// ./src/runtimes/web/dom/dependency_loader.ts


class DependencyLoader {
    constructor(options) {
        this.options = options;
        this.receivers = options.receivers || ScriptReceivers;
        this.loading = {};
    }
    load(name, options, callback) {
        var self = this;
        if (self.loading[name] && self.loading[name].length > 0) {
            self.loading[name].push(callback);
        }
        else {
            self.loading[name] = [callback];
            var request = runtime.createScriptRequest(self.getPath(name, options));
            var receiver = self.receivers.create(function (error) {
                self.receivers.remove(receiver);
                if (self.loading[name]) {
                    var callbacks = self.loading[name];
                    delete self.loading[name];
                    var successCallback = function (wasSuccessful) {
                        if (!wasSuccessful) {
                            request.cleanup();
                        }
                    };
                    for (var i = 0; i < callbacks.length; i++) {
                        callbacks[i](error, successCallback);
                    }
                }
            });
            request.send(receiver);
        }
    }
    getRoot(options) {
        var cdn;
        var protocol = runtime.getDocument().location.protocol;
        if ((options && options.useTLS) || protocol === 'https:') {
            cdn = this.options.cdn_https;
        }
        else {
            cdn = this.options.cdn_http;
        }
        return cdn.replace(/\/*$/, '') + '/' + this.options.version;
    }
    getPath(name, options) {
        return this.getRoot(options) + '/' + name + this.options.suffix + '.js';
    }
}

;// ./src/runtimes/web/dom/dependencies.ts



var DependenciesReceivers = new ScriptReceiverFactory('_pusher_dependencies', 'Pusher.DependenciesReceivers');
var Dependencies = new DependencyLoader({
    cdn_http: defaults.cdn_http,
    cdn_https: defaults.cdn_https,
    version: defaults.VERSION,
    suffix: defaults.dependency_suffix,
    receivers: DependenciesReceivers,
});

;// ./src/core/utils/url_store.ts
const urlStore = {
    baseUrl: 'https://pusher.com',
    urls: {
        authenticationEndpoint: {
            path: '/docs/channels/server_api/authenticating_users',
        },
        authorizationEndpoint: {
            path: '/docs/channels/server_api/authorizing-users/',
        },
        javascriptQuickStart: {
            path: '/docs/javascript_quick_start',
        },
        triggeringClientEvents: {
            path: '/docs/client_api_guide/client_events#trigger-events',
        },
        encryptedChannelSupport: {
            fullUrl: 'https://github.com/pusher/pusher-js/tree/cc491015371a4bde5743d1c87a0fbac0feb53195#encrypted-channel-support',
        },
    },
};
const buildLogSuffix = function (key) {
    const urlPrefix = 'See:';
    const urlObj = urlStore.urls[key];
    if (!urlObj)
        return '';
    let url;
    if (urlObj.fullUrl) {
        url = urlObj.fullUrl;
    }
    else if (urlObj.path) {
        url = urlStore.baseUrl + urlObj.path;
    }
    if (!url)
        return '';
    return `${urlPrefix} ${url}`;
};
/* harmony default export */ const url_store = ({ buildLogSuffix });

;// ./src/core/auth/options.ts
var AuthRequestType;
(function (AuthRequestType) {
    AuthRequestType["UserAuthentication"] = "user-authentication";
    AuthRequestType["ChannelAuthorization"] = "channel-authorization";
})(AuthRequestType || (AuthRequestType = {}));

;// ./src/core/errors.ts
class BadEventName extends Error {
    constructor(msg) {
        super(msg);
        Object.setPrototypeOf(this, new.target.prototype);
    }
}
class BadChannelName extends Error {
    constructor(msg) {
        super(msg);
        Object.setPrototypeOf(this, new.target.prototype);
    }
}
class RequestTimedOut extends Error {
    constructor(msg) {
        super(msg);
        Object.setPrototypeOf(this, new.target.prototype);
    }
}
class TransportPriorityTooLow extends Error {
    constructor(msg) {
        super(msg);
        Object.setPrototypeOf(this, new.target.prototype);
    }
}
class TransportClosed extends Error {
    constructor(msg) {
        super(msg);
        Object.setPrototypeOf(this, new.target.prototype);
    }
}
class UnsupportedFeature extends Error {
    constructor(msg) {
        super(msg);
        Object.setPrototypeOf(this, new.target.prototype);
    }
}
class UnsupportedTransport extends Error {
    constructor(msg) {
        super(msg);
        Object.setPrototypeOf(this, new.target.prototype);
    }
}
class UnsupportedStrategy extends Error {
    constructor(msg) {
        super(msg);
        Object.setPrototypeOf(this, new.target.prototype);
    }
}
class HTTPAuthError extends Error {
    constructor(status, msg) {
        super(msg);
        this.status = status;
        Object.setPrototypeOf(this, new.target.prototype);
    }
}

;// ./src/runtimes/isomorphic/auth/xhr_auth.ts




const ajax = function (context, query, authOptions, authRequestType, callback) {
    const xhr = runtime.createXHR();
    xhr.open('POST', authOptions.endpoint, true);
    xhr.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
    for (var headerName in authOptions.headers) {
        xhr.setRequestHeader(headerName, authOptions.headers[headerName]);
    }
    if (authOptions.headersProvider != null) {
        let dynamicHeaders = authOptions.headersProvider();
        for (var headerName in dynamicHeaders) {
            xhr.setRequestHeader(headerName, dynamicHeaders[headerName]);
        }
    }
    xhr.onreadystatechange = function () {
        if (xhr.readyState === 4) {
            if (xhr.status === 200) {
                let data;
                let parsed = false;
                try {
                    data = JSON.parse(xhr.responseText);
                    parsed = true;
                }
                catch (e) {
                    callback(new HTTPAuthError(200, `JSON returned from ${authRequestType.toString()} endpoint was invalid, yet status code was 200. Data was: ${xhr.responseText}`), null);
                }
                if (parsed) {
                    callback(null, data);
                }
            }
            else {
                let suffix = '';
                switch (authRequestType) {
                    case AuthRequestType.UserAuthentication:
                        suffix = url_store.buildLogSuffix('authenticationEndpoint');
                        break;
                    case AuthRequestType.ChannelAuthorization:
                        suffix = `Clients must be authorized to join private or presence channels. ${url_store.buildLogSuffix('authorizationEndpoint')}`;
                        break;
                }
                callback(new HTTPAuthError(xhr.status, `Unable to retrieve auth string from ${authRequestType.toString()} endpoint - ` +
                    `received status: ${xhr.status} from ${authOptions.endpoint}. ${suffix}`), null);
            }
        }
    };
    xhr.send(query);
    return xhr;
};
/* harmony default export */ const xhr_auth = (ajax);

;// ./src/core/base64.ts
function encode(s) {
    return btoa(utob(s));
}
var fromCharCode = String.fromCharCode;
var b64chars = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/';
var b64tab = {};
for (var i = 0, l = b64chars.length; i < l; i++) {
    b64tab[b64chars.charAt(i)] = i;
}
var cb_utob = function (c) {
    var cc = c.charCodeAt(0);
    return cc < 0x80
        ? c
        : cc < 0x800
            ? fromCharCode(0xc0 | (cc >>> 6)) + fromCharCode(0x80 | (cc & 0x3f))
            : fromCharCode(0xe0 | ((cc >>> 12) & 0x0f)) +
                fromCharCode(0x80 | ((cc >>> 6) & 0x3f)) +
                fromCharCode(0x80 | (cc & 0x3f));
};
var utob = function (u) {
    return u.replace(/[^\x00-\x7F]/g, cb_utob);
};
var cb_encode = function (ccc) {
    var padlen = [0, 2, 1][ccc.length % 3];
    var ord = (ccc.charCodeAt(0) << 16) |
        ((ccc.length > 1 ? ccc.charCodeAt(1) : 0) << 8) |
        (ccc.length > 2 ? ccc.charCodeAt(2) : 0);
    var chars = [
        b64chars.charAt(ord >>> 18),
        b64chars.charAt((ord >>> 12) & 63),
        padlen >= 2 ? '=' : b64chars.charAt((ord >>> 6) & 63),
        padlen >= 1 ? '=' : b64chars.charAt(ord & 63),
    ];
    return chars.join('');
};
var btoa = window.btoa ||
    function (b) {
        return b.replace(/[\s\S]{1,3}/g, cb_encode);
    };

;// ./src/core/utils/timers/abstract_timer.ts
class Timer {
    constructor(set, clear, delay, callback) {
        this.clear = clear;
        this.timer = set(() => {
            if (this.timer) {
                this.timer = callback(this.timer);
            }
        }, delay);
    }
    isRunning() {
        return this.timer !== null;
    }
    ensureAborted() {
        if (this.timer) {
            this.clear(this.timer);
            this.timer = null;
        }
    }
}
/* harmony default export */ const abstract_timer = (Timer);

;// ./src/core/utils/timers/index.ts

function timers_clearTimeout(timer) {
    window.clearTimeout(timer);
}
function timers_clearInterval(timer) {
    window.clearInterval(timer);
}
class OneOffTimer extends abstract_timer {
    constructor(delay, callback) {
        super(setTimeout, timers_clearTimeout, delay, function (timer) {
            callback();
            return null;
        });
    }
}
class PeriodicTimer extends abstract_timer {
    constructor(delay, callback) {
        super(setInterval, timers_clearInterval, delay, function (timer) {
            callback();
            return timer;
        });
    }
}

;// ./src/core/util.ts

var Util = {
    now() {
        if (Date.now) {
            return Date.now();
        }
        else {
            return new Date().valueOf();
        }
    },
    defer(callback) {
        return new OneOffTimer(0, callback);
    },
    method(name, ...args) {
        var boundArguments = Array.prototype.slice.call(arguments, 1);
        return function (object) {
            return object[name].apply(object, boundArguments.concat(arguments));
        };
    },
};
/* harmony default export */ const util = (Util);

;// ./src/core/utils/collections.ts


function extend(target, ...sources) {
    for (var i = 0; i < sources.length; i++) {
        var extensions = sources[i];
        for (var property in extensions) {
            if (extensions[property] &&
                extensions[property].constructor &&
                extensions[property].constructor === Object) {
                target[property] = extend(target[property] || {}, extensions[property]);
            }
            else {
                target[property] = extensions[property];
            }
        }
    }
    return target;
}
function stringify() {
    var m = ['Pusher'];
    for (var i = 0; i < arguments.length; i++) {
        if (typeof arguments[i] === 'string') {
            m.push(arguments[i]);
        }
        else {
            m.push(safeJSONStringify(arguments[i]));
        }
    }
    return m.join(' : ');
}
function arrayIndexOf(array, item) {
    var nativeIndexOf = Array.prototype.indexOf;
    if (array === null) {
        return -1;
    }
    if (nativeIndexOf && array.indexOf === nativeIndexOf) {
        return array.indexOf(item);
    }
    for (var i = 0, l = array.length; i < l; i++) {
        if (array[i] === item) {
            return i;
        }
    }
    return -1;
}
function objectApply(object, f) {
    for (var key in object) {
        if (Object.prototype.hasOwnProperty.call(object, key)) {
            f(object[key], key, object);
        }
    }
}
function keys(object) {
    var keys = [];
    objectApply(object, function (_, key) {
        keys.push(key);
    });
    return keys;
}
function values(object) {
    var values = [];
    objectApply(object, function (value) {
        values.push(value);
    });
    return values;
}
function apply(array, f, context) {
    for (var i = 0; i < array.length; i++) {
        f.call(context || window, array[i], i, array);
    }
}
function map(array, f) {
    var result = [];
    for (var i = 0; i < array.length; i++) {
        result.push(f(array[i], i, array, result));
    }
    return result;
}
function mapObject(object, f) {
    var result = {};
    objectApply(object, function (value, key) {
        result[key] = f(value);
    });
    return result;
}
function filter(array, test) {
    test =
        test ||
            function (value) {
                return !!value;
            };
    var result = [];
    for (var i = 0; i < array.length; i++) {
        if (test(array[i], i, array, result)) {
            result.push(array[i]);
        }
    }
    return result;
}
function filterObject(object, test) {
    var result = {};
    objectApply(object, function (value, key) {
        if ((test && test(value, key, object, result)) || Boolean(value)) {
            result[key] = value;
        }
    });
    return result;
}
function flatten(object) {
    var result = [];
    objectApply(object, function (value, key) {
        result.push([key, value]);
    });
    return result;
}
function any(array, test) {
    for (var i = 0; i < array.length; i++) {
        if (test(array[i], i, array)) {
            return true;
        }
    }
    return false;
}
function collections_all(array, test) {
    for (var i = 0; i < array.length; i++) {
        if (!test(array[i], i, array)) {
            return false;
        }
    }
    return true;
}
function encodeParamsObject(data) {
    return mapObject(data, function (value) {
        if (typeof value === 'object') {
            value = safeJSONStringify(value);
        }
        return encodeURIComponent(encode(value.toString()));
    });
}
function buildQueryString(data) {
    var params = filterObject(data, function (value) {
        return value !== undefined;
    });
    var query = map(flatten(encodeParamsObject(params)), util.method('join', '=')).join('&');
    return query;
}
function decycleObject(object) {
    var objects = [], paths = [];
    return (function derez(value, path) {
        var i, name, nu;
        switch (typeof value) {
            case 'object':
                if (!value) {
                    return null;
                }
                for (i = 0; i < objects.length; i += 1) {
                    if (objects[i] === value) {
                        return { $ref: paths[i] };
                    }
                }
                objects.push(value);
                paths.push(path);
                if (Object.prototype.toString.apply(value) === '[object Array]') {
                    nu = [];
                    for (i = 0; i < value.length; i += 1) {
                        nu[i] = derez(value[i], path + '[' + i + ']');
                    }
                }
                else {
                    nu = {};
                    for (name in value) {
                        if (Object.prototype.hasOwnProperty.call(value, name)) {
                            nu[name] = derez(value[name], path + '[' + JSON.stringify(name) + ']');
                        }
                    }
                }
                return nu;
            case 'number':
            case 'string':
            case 'boolean':
                return value;
        }
    })(object, '$');
}
function safeJSONStringify(source) {
    try {
        return JSON.stringify(source);
    }
    catch (e) {
        return JSON.stringify(decycleObject(source));
    }
}

;// ./src/core/logger.ts


class Logger {
    constructor() {
        this.globalLog = (message) => {
            if (window.console && window.console.log) {
                window.console.log(message);
            }
        };
    }
    debug(...args) {
        this.log(this.globalLog, args);
    }
    warn(...args) {
        this.log(this.globalLogWarn, args);
    }
    error(...args) {
        this.log(this.globalLogError, args);
    }
    globalLogWarn(message) {
        if (window.console && window.console.warn) {
            window.console.warn(message);
        }
        else {
            this.globalLog(message);
        }
    }
    globalLogError(message) {
        if (window.console && window.console.error) {
            window.console.error(message);
        }
        else {
            this.globalLogWarn(message);
        }
    }
    log(defaultLoggingFunction, ...args) {
        var message = stringify.apply(this, arguments);
        if (pusher.log) {
            pusher.log(message);
        }
        else if (pusher.logToConsole) {
            const log = defaultLoggingFunction.bind(this);
            log(message);
        }
    }
}
/* harmony default export */ const logger = (new Logger());

;// ./src/runtimes/web/auth/jsonp_auth.ts

var jsonp = function (context, query, authOptions, authRequestType, callback) {
    if (authOptions.headers !== undefined ||
        authOptions.headersProvider != null) {
        logger.warn(`To send headers with the ${authRequestType.toString()} request, you must use AJAX, rather than JSONP.`);
    }
    var callbackName = context.nextAuthCallbackID.toString();
    context.nextAuthCallbackID++;
    var document = context.getDocument();
    var script = document.createElement('script');
    context.auth_callbacks[callbackName] = function (data) {
        callback(null, data);
    };
    var callback_name = "Pusher.auth_callbacks['" + callbackName + "']";
    script.src =
        authOptions.endpoint +
            '?callback=' +
            encodeURIComponent(callback_name) +
            '&' +
            query;
    var head = document.getElementsByTagName('head')[0] || document.documentElement;
    head.insertBefore(script, head.firstChild);
};
/* harmony default export */ const jsonp_auth = (jsonp);

;// ./src/runtimes/web/dom/script_request.ts
class ScriptRequest {
    constructor(src) {
        this.src = src;
    }
    send(receiver) {
        var self = this;
        var errorString = 'Error loading ' + self.src;
        self.script = document.createElement('script');
        self.script.id = receiver.id;
        self.script.src = self.src;
        self.script.type = 'text/javascript';
        self.script.charset = 'UTF-8';
        if (self.script.addEventListener) {
            self.script.onerror = function () {
                receiver.callback(errorString);
            };
            self.script.onload = function () {
                receiver.callback(null);
            };
        }
        else {
            self.script.onreadystatechange = function () {
                if (self.script.readyState === 'loaded' ||
                    self.script.readyState === 'complete') {
                    receiver.callback(null);
                }
            };
        }
        if (self.script.async === undefined &&
            document.attachEvent &&
            /opera/i.test(navigator.userAgent)) {
            self.errorScript = document.createElement('script');
            self.errorScript.id = receiver.id + '_error';
            self.errorScript.text = receiver.name + "('" + errorString + "');";
            self.script.async = self.errorScript.async = false;
        }
        else {
            self.script.async = true;
        }
        var head = document.getElementsByTagName('head')[0];
        head.insertBefore(self.script, head.firstChild);
        if (self.errorScript) {
            head.insertBefore(self.errorScript, self.script.nextSibling);
        }
    }
    cleanup() {
        if (this.script) {
            this.script.onload = this.script.onerror = null;
            this.script.onreadystatechange = null;
        }
        if (this.script && this.script.parentNode) {
            this.script.parentNode.removeChild(this.script);
        }
        if (this.errorScript && this.errorScript.parentNode) {
            this.errorScript.parentNode.removeChild(this.errorScript);
        }
        this.script = null;
        this.errorScript = null;
    }
}

;// ./src/runtimes/web/dom/jsonp_request.ts


class JSONPRequest {
    constructor(url, data) {
        this.url = url;
        this.data = data;
    }
    send(receiver) {
        if (this.request) {
            return;
        }
        var query = buildQueryString(this.data);
        var url = this.url + '/' + receiver.number + '?' + query;
        this.request = runtime.createScriptRequest(url);
        this.request.send(receiver);
    }
    cleanup() {
        if (this.request) {
            this.request.cleanup();
        }
    }
}

;// ./src/runtimes/web/timeline/jsonp_timeline.ts


var getAgent = function (sender, useTLS) {
    return function (data, callback) {
        var scheme = 'http' + (useTLS ? 's' : '') + '://';
        var url = scheme + (sender.host || sender.options.host) + sender.options.path;
        var request = runtime.createJSONPRequest(url, data);
        var receiver = runtime.ScriptReceivers.create(function (error, result) {
            ScriptReceivers.remove(receiver);
            request.cleanup();
            if (result && result.host) {
                sender.host = result.host;
            }
            if (callback) {
                callback(error, result);
            }
        });
        request.send(receiver);
    };
};
var jsonp_timeline_jsonp = {
    name: 'jsonp',
    getAgent,
};
/* harmony default export */ const jsonp_timeline = (jsonp_timeline_jsonp);

;// ./src/core/transports/url_schemes.ts

function getGenericURL(baseScheme, params, path) {
    var scheme = baseScheme + (params.useTLS ? 's' : '');
    var host = params.useTLS ? params.hostTLS : params.hostNonTLS;
    return scheme + '://' + host + path;
}
function getGenericPath(key, queryString) {
    var path = '/app/' + key;
    var query = '?protocol=' +
        defaults.PROTOCOL +
        '&client=js' +
        '&version=' +
        defaults.VERSION +
        (queryString ? '&' + queryString : '');
    return path + query;
}
var ws = {
    getInitial: function (key, params) {
        var path = (params.httpPath || '') + getGenericPath(key, 'flash=false');
        return getGenericURL('ws', params, path);
    },
};
var http = {
    getInitial: function (key, params) {
        var path = (params.httpPath || '/pusher') + getGenericPath(key);
        return getGenericURL('http', params, path);
    },
};
var sockjs = {
    getInitial: function (key, params) {
        return getGenericURL('http', params, params.httpPath || '/pusher');
    },
    getPath: function (key, params) {
        return getGenericPath(key);
    },
};

;// ./src/core/events/callback_registry.ts

class CallbackRegistry {
    constructor() {
        this._callbacks = {};
    }
    get(name) {
        return this._callbacks[prefix(name)];
    }
    add(name, callback, context) {
        var prefixedEventName = prefix(name);
        this._callbacks[prefixedEventName] =
            this._callbacks[prefixedEventName] || [];
        this._callbacks[prefixedEventName].push({
            fn: callback,
            context: context,
        });
    }
    remove(name, callback, context) {
        if (!name && !callback && !context) {
            this._callbacks = {};
            return;
        }
        var names = name ? [prefix(name)] : keys(this._callbacks);
        if (callback || context) {
            this.removeCallback(names, callback, context);
        }
        else {
            this.removeAllCallbacks(names);
        }
    }
    removeCallback(names, callback, context) {
        apply(names, function (name) {
            this._callbacks[name] = filter(this._callbacks[name] || [], function (binding) {
                return ((callback && callback !== binding.fn) ||
                    (context && context !== binding.context));
            });
            if (this._callbacks[name].length === 0) {
                delete this._callbacks[name];
            }
        }, this);
    }
    removeAllCallbacks(names) {
        apply(names, function (name) {
            delete this._callbacks[name];
        }, this);
    }
}
function prefix(name) {
    return '_' + name;
}

;// ./src/core/events/dispatcher.ts


class Dispatcher {
    constructor(failThrough) {
        this.callbacks = new CallbackRegistry();
        this.global_callbacks = [];
        this.failThrough = failThrough;
    }
    bind(eventName, callback, context) {
        this.callbacks.add(eventName, callback, context);
        return this;
    }
    bind_global(callback) {
        this.global_callbacks.push(callback);
        return this;
    }
    unbind(eventName, callback, context) {
        this.callbacks.remove(eventName, callback, context);
        return this;
    }
    unbind_global(callback) {
        if (!callback) {
            this.global_callbacks = [];
            return this;
        }
        this.global_callbacks = filter(this.global_callbacks || [], (c) => c !== callback);
        return this;
    }
    unbind_all() {
        this.unbind();
        this.unbind_global();
        return this;
    }
    emit(eventName, data, metadata) {
        for (var i = 0; i < this.global_callbacks.length; i++) {
            this.global_callbacks[i](eventName, data);
        }
        var callbacks = this.callbacks.get(eventName);
        var args = [];
        if (metadata) {
            args.push(data, metadata);
        }
        else if (data) {
            args.push(data);
        }
        if (callbacks && callbacks.length > 0) {
            for (var i = 0; i < callbacks.length; i++) {
                callbacks[i].fn.apply(callbacks[i].context || window, args);
            }
        }
        else if (this.failThrough) {
            this.failThrough(eventName, data);
        }
        return this;
    }
}

;// ./src/core/transports/transport_connection.ts





class TransportConnection extends Dispatcher {
    constructor(hooks, name, priority, key, options) {
        super();
        this.initialize = runtime.transportConnectionInitializer;
        this.hooks = hooks;
        this.name = name;
        this.priority = priority;
        this.key = key;
        this.options = options;
        this.state = 'new';
        this.timeline = options.timeline;
        this.activityTimeout = options.activityTimeout;
        this.id = this.timeline.generateUniqueID();
    }
    handlesActivityChecks() {
        return Boolean(this.hooks.handlesActivityChecks);
    }
    supportsPing() {
        return Boolean(this.hooks.supportsPing);
    }
    connect() {
        if (this.socket || this.state !== 'initialized') {
            return false;
        }
        var url = this.hooks.urls.getInitial(this.key, this.options);
        try {
            this.socket = this.hooks.getSocket(url, this.options);
        }
        catch (e) {
            util.defer(() => {
                this.onError(e);
                this.changeState('closed');
            });
            return false;
        }
        this.bindListeners();
        logger.debug('Connecting', { transport: this.name, url });
        this.changeState('connecting');
        return true;
    }
    close() {
        if (this.socket) {
            this.socket.close();
            return true;
        }
        else {
            return false;
        }
    }
    send(data) {
        if (this.state === 'open') {
            util.defer(() => {
                if (this.socket) {
                    this.socket.send(data);
                }
            });
            return true;
        }
        else {
            return false;
        }
    }
    ping() {
        if (this.state === 'open' && this.supportsPing()) {
            this.socket.ping();
        }
    }
    onOpen() {
        if (this.hooks.beforeOpen) {
            this.hooks.beforeOpen(this.socket, this.hooks.urls.getPath(this.key, this.options));
        }
        this.changeState('open');
        this.socket.onopen = undefined;
    }
    onError(error) {
        this.emit('error', { type: 'WebSocketError', error: error });
        this.timeline.error(this.buildTimelineMessage({ error: error.toString() }));
    }
    onClose(closeEvent) {
        if (closeEvent) {
            this.changeState('closed', {
                code: closeEvent.code,
                reason: closeEvent.reason,
                wasClean: closeEvent.wasClean,
            });
        }
        else {
            this.changeState('closed');
        }
        this.unbindListeners();
        this.socket = undefined;
    }
    onMessage(message) {
        this.emit('message', message);
    }
    onActivity() {
        this.emit('activity');
    }
    bindListeners() {
        this.socket.onopen = () => {
            this.onOpen();
        };
        this.socket.onerror = (error) => {
            this.onError(error);
        };
        this.socket.onclose = (closeEvent) => {
            this.onClose(closeEvent);
        };
        this.socket.onmessage = (message) => {
            this.onMessage(message);
        };
        if (this.supportsPing()) {
            this.socket.onactivity = () => {
                this.onActivity();
            };
        }
    }
    unbindListeners() {
        if (this.socket) {
            this.socket.onopen = undefined;
            this.socket.onerror = undefined;
            this.socket.onclose = undefined;
            this.socket.onmessage = undefined;
            if (this.supportsPing()) {
                this.socket.onactivity = undefined;
            }
        }
    }
    changeState(state, params) {
        this.state = state;
        this.timeline.info(this.buildTimelineMessage({
            state: state,
            params: params,
        }));
        this.emit(state, params);
    }
    buildTimelineMessage(message) {
        return extend({ cid: this.id }, message);
    }
}

;// ./src/core/transports/transport.ts

class Transport {
    constructor(hooks) {
        this.hooks = hooks;
    }
    isSupported(environment) {
        return this.hooks.isSupported(environment);
    }
    createConnection(name, priority, key, options) {
        return new TransportConnection(this.hooks, name, priority, key, options);
    }
}

;// ./src/runtimes/isomorphic/transports/transports.ts




var WSTransport = new Transport({
    urls: ws,
    handlesActivityChecks: false,
    supportsPing: false,
    isInitialized: function () {
        return Boolean(runtime.getWebSocketAPI());
    },
    isSupported: function () {
        return Boolean(runtime.getWebSocketAPI());
    },
    getSocket: function (url) {
        return runtime.createWebSocket(url);
    },
});
var httpConfiguration = {
    urls: http,
    handlesActivityChecks: false,
    supportsPing: true,
    isInitialized: function () {
        return true;
    },
};
var streamingConfiguration = extend({
    getSocket: function (url) {
        return runtime.HTTPFactory.createStreamingSocket(url);
    },
}, httpConfiguration);
var pollingConfiguration = extend({
    getSocket: function (url) {
        return runtime.HTTPFactory.createPollingSocket(url);
    },
}, httpConfiguration);
var xhrConfiguration = {
    isSupported: function () {
        return runtime.isXHRSupported();
    },
};
var XHRStreamingTransport = new Transport((extend({}, streamingConfiguration, xhrConfiguration)));
var XHRPollingTransport = new Transport((extend({}, pollingConfiguration, xhrConfiguration)));
var Transports = {
    ws: WSTransport,
    xhr_streaming: XHRStreamingTransport,
    xhr_polling: XHRPollingTransport,
};
/* harmony default export */ const transports = (Transports);

;// ./src/runtimes/web/transports/transports.ts






var SockJSTransport = new Transport({
    file: 'sockjs',
    urls: sockjs,
    handlesActivityChecks: true,
    supportsPing: false,
    isSupported: function () {
        return true;
    },
    isInitialized: function () {
        return window.SockJS !== undefined;
    },
    getSocket: function (url, options) {
        return new window.SockJS(url, null, {
            js_path: Dependencies.getPath('sockjs', {
                useTLS: options.useTLS,
            }),
            ignore_null_origin: options.ignoreNullOrigin,
        });
    },
    beforeOpen: function (socket, path) {
        socket.send(JSON.stringify({
            path: path,
        }));
    },
});
var xdrConfiguration = {
    isSupported: function (environment) {
        var yes = runtime.isXDRSupported(environment.useTLS);
        return yes;
    },
};
var XDRStreamingTransport = new Transport((extend({}, streamingConfiguration, xdrConfiguration)));
var XDRPollingTransport = new Transport((extend({}, pollingConfiguration, xdrConfiguration)));
transports.xdr_streaming = XDRStreamingTransport;
transports.xdr_polling = XDRPollingTransport;
transports.sockjs = SockJSTransport;
/* harmony default export */ const transports_transports = (transports);

;// ./src/runtimes/web/net_info.ts

class NetInfo extends Dispatcher {
    constructor() {
        super();
        var self = this;
        if (window.addEventListener !== undefined) {
            window.addEventListener('online', function () {
                self.emit('online');
            }, false);
            window.addEventListener('offline', function () {
                self.emit('offline');
            }, false);
        }
    }
    isOnline() {
        if (window.navigator.onLine === undefined) {
            return true;
        }
        else {
            return window.navigator.onLine;
        }
    }
}
var Network = new NetInfo();

;// ./src/core/transports/assistant_to_the_transport_manager.ts


class AssistantToTheTransportManager {
    constructor(manager, transport, options) {
        this.manager = manager;
        this.transport = transport;
        this.minPingDelay = options.minPingDelay;
        this.maxPingDelay = options.maxPingDelay;
        this.pingDelay = undefined;
    }
    createConnection(name, priority, key, options) {
        options = extend({}, options, {
            activityTimeout: this.pingDelay,
        });
        var connection = this.transport.createConnection(name, priority, key, options);
        var openTimestamp = null;
        var onOpen = function () {
            connection.unbind('open', onOpen);
            connection.bind('closed', onClosed);
            openTimestamp = util.now();
        };
        var onClosed = (closeEvent) => {
            connection.unbind('closed', onClosed);
            if (closeEvent.code === 1002 || closeEvent.code === 1003) {
                this.manager.reportDeath();
            }
            else if (!closeEvent.wasClean && openTimestamp) {
                var lifespan = util.now() - openTimestamp;
                if (lifespan < 2 * this.maxPingDelay) {
                    this.manager.reportDeath();
                    this.pingDelay = Math.max(lifespan / 2, this.minPingDelay);
                }
            }
        };
        connection.bind('open', onOpen);
        return connection;
    }
    isSupported(environment) {
        return this.manager.isAlive() && this.transport.isSupported(environment);
    }
}

;// ./src/core/connection/protocol/protocol.ts
const Protocol = {
    decodeMessage: function (messageEvent) {
        try {
            var messageData = JSON.parse(messageEvent.data);
            var pusherEventData = messageData.data;
            if (typeof pusherEventData === 'string') {
                try {
                    pusherEventData = JSON.parse(messageData.data);
                }
                catch (e) { }
            }
            var pusherEvent = {
                event: messageData.event,
                channel: messageData.channel,
                data: pusherEventData,
            };
            if (messageData.user_id) {
                pusherEvent.user_id = messageData.user_id;
            }
            return pusherEvent;
        }
        catch (e) {
            throw { type: 'MessageParseError', error: e, data: messageEvent.data };
        }
    },
    encodeMessage: function (event) {
        return JSON.stringify(event);
    },
    processHandshake: function (messageEvent) {
        var message = Protocol.decodeMessage(messageEvent);
        if (message.event === 'pusher:connection_established') {
            if (!message.data.activity_timeout) {
                throw 'No activity timeout specified in handshake';
            }
            return {
                action: 'connected',
                id: message.data.socket_id,
                activityTimeout: message.data.activity_timeout * 1000,
            };
        }
        else if (message.event === 'pusher:error') {
            return {
                action: this.getCloseAction(message.data),
                error: this.getCloseError(message.data),
            };
        }
        else {
            throw 'Invalid handshake';
        }
    },
    getCloseAction: function (closeEvent) {
        if (closeEvent.code < 4000) {
            if (closeEvent.code >= 1002 && closeEvent.code <= 1004) {
                return 'backoff';
            }
            else {
                return null;
            }
        }
        else if (closeEvent.code === 4000) {
            return 'tls_only';
        }
        else if (closeEvent.code < 4100) {
            return 'refused';
        }
        else if (closeEvent.code < 4200) {
            return 'backoff';
        }
        else if (closeEvent.code < 4300) {
            return 'retry';
        }
        else {
            return 'refused';
        }
    },
    getCloseError: function (closeEvent) {
        if (closeEvent.code !== 1000 && closeEvent.code !== 1001) {
            return {
                type: 'PusherError',
                data: {
                    code: closeEvent.code,
                    message: closeEvent.reason || closeEvent.message,
                },
            };
        }
        else {
            return null;
        }
    },
};
/* harmony default export */ const protocol = (Protocol);

;// ./src/core/connection/connection.ts




class Connection extends Dispatcher {
    constructor(id, transport) {
        super();
        this.id = id;
        this.transport = transport;
        this.activityTimeout = transport.activityTimeout;
        this.bindListeners();
    }
    handlesActivityChecks() {
        return this.transport.handlesActivityChecks();
    }
    send(data) {
        return this.transport.send(data);
    }
    send_event(name, data, channel) {
        var event = { event: name, data: data };
        if (channel) {
            event.channel = channel;
        }
        logger.debug('Event sent', event);
        return this.send(protocol.encodeMessage(event));
    }
    ping() {
        if (this.transport.supportsPing()) {
            this.transport.ping();
        }
        else {
            this.send_event('pusher:ping', {});
        }
    }
    close() {
        this.transport.close();
    }
    bindListeners() {
        var listeners = {
            message: (messageEvent) => {
                var pusherEvent;
                try {
                    pusherEvent = protocol.decodeMessage(messageEvent);
                }
                catch (e) {
                    this.emit('error', {
                        type: 'MessageParseError',
                        error: e,
                        data: messageEvent.data,
                    });
                }
                if (pusherEvent !== undefined) {
                    logger.debug('Event recd', pusherEvent);
                    switch (pusherEvent.event) {
                        case 'pusher:error':
                            this.emit('error', {
                                type: 'PusherError',
                                data: pusherEvent.data,
                            });
                            break;
                        case 'pusher:ping':
                            this.emit('ping');
                            break;
                        case 'pusher:pong':
                            this.emit('pong');
                            break;
                    }
                    this.emit('message', pusherEvent);
                }
            },
            activity: () => {
                this.emit('activity');
            },
            error: (error) => {
                this.emit('error', error);
            },
            closed: (closeEvent) => {
                unbindListeners();
                if (closeEvent && closeEvent.code) {
                    this.handleCloseEvent(closeEvent);
                }
                this.transport = null;
                this.emit('closed');
            },
        };
        var unbindListeners = () => {
            objectApply(listeners, (listener, event) => {
                this.transport.unbind(event, listener);
            });
        };
        objectApply(listeners, (listener, event) => {
            this.transport.bind(event, listener);
        });
    }
    handleCloseEvent(closeEvent) {
        var action = protocol.getCloseAction(closeEvent);
        var error = protocol.getCloseError(closeEvent);
        if (error) {
            this.emit('error', error);
        }
        if (action) {
            this.emit(action, { action: action, error: error });
        }
    }
}

;// ./src/core/connection/handshake/index.ts



class Handshake {
    constructor(transport, callback) {
        this.transport = transport;
        this.callback = callback;
        this.bindListeners();
    }
    close() {
        this.unbindListeners();
        this.transport.close();
    }
    bindListeners() {
        this.onMessage = (m) => {
            this.unbindListeners();
            var result;
            try {
                result = protocol.processHandshake(m);
            }
            catch (e) {
                this.finish('error', { error: e });
                this.transport.close();
                return;
            }
            if (result.action === 'connected') {
                this.finish('connected', {
                    connection: new Connection(result.id, this.transport),
                    activityTimeout: result.activityTimeout,
                });
            }
            else {
                this.finish(result.action, { error: result.error });
                this.transport.close();
            }
        };
        this.onClosed = (closeEvent) => {
            this.unbindListeners();
            var action = protocol.getCloseAction(closeEvent) || 'backoff';
            var error = protocol.getCloseError(closeEvent);
            this.finish(action, { error: error });
        };
        this.transport.bind('message', this.onMessage);
        this.transport.bind('closed', this.onClosed);
    }
    unbindListeners() {
        this.transport.unbind('message', this.onMessage);
        this.transport.unbind('closed', this.onClosed);
    }
    finish(action, params) {
        this.callback(extend({ transport: this.transport, action: action }, params));
    }
}

;// ./src/core/timeline/timeline_sender.ts

class TimelineSender {
    constructor(timeline, options) {
        this.timeline = timeline;
        this.options = options || {};
    }
    send(useTLS, callback) {
        if (this.timeline.isEmpty()) {
            return;
        }
        this.timeline.send(runtime.TimelineTransport.getAgent(this, useTLS), callback);
    }
}

;// ./src/core/channels/channel.ts





class Channel extends Dispatcher {
    constructor(name, pusher) {
        super(function (event, data) {
            logger.debug('No callbacks on ' + name + ' for ' + event);
        });
        this.name = name;
        this.pusher = pusher;
        this.subscribed = false;
        this.subscriptionPending = false;
        this.subscriptionCancelled = false;
    }
    authorize(socketId, callback) {
        return callback(null, { auth: '' });
    }
    trigger(event, data) {
        if (event.indexOf('client-') !== 0) {
            throw new BadEventName("Event '" + event + "' does not start with 'client-'");
        }
        if (!this.subscribed) {
            var suffix = url_store.buildLogSuffix('triggeringClientEvents');
            logger.warn(`Client event triggered before channel 'subscription_succeeded' event . ${suffix}`);
        }
        return this.pusher.send_event(event, data, this.name);
    }
    disconnect() {
        this.subscribed = false;
        this.subscriptionPending = false;
    }
    handleEvent(event) {
        var eventName = event.event;
        var data = event.data;
        if (eventName === 'pusher_internal:subscription_succeeded') {
            this.handleSubscriptionSucceededEvent(event);
        }
        else if (eventName === 'pusher_internal:subscription_count') {
            this.handleSubscriptionCountEvent(event);
        }
        else if (eventName.indexOf('pusher_internal:') !== 0) {
            var metadata = {};
            this.emit(eventName, data, metadata);
        }
    }
    handleSubscriptionSucceededEvent(event) {
        this.subscriptionPending = false;
        this.subscribed = true;
        if (this.subscriptionCancelled) {
            this.pusher.unsubscribe(this.name);
        }
        else {
            this.emit('pusher:subscription_succeeded', event.data);
        }
    }
    handleSubscriptionCountEvent(event) {
        if (event.data.subscription_count) {
            this.subscriptionCount = event.data.subscription_count;
        }
        this.emit('pusher:subscription_count', event.data);
    }
    subscribe() {
        if (this.subscribed) {
            return;
        }
        this.subscriptionPending = true;
        this.subscriptionCancelled = false;
        this.authorize(this.pusher.connection.socket_id, (error, data) => {
            if (error) {
                this.subscriptionPending = false;
                logger.error(error.toString());
                this.emit('pusher:subscription_error', Object.assign({}, {
                    type: 'AuthError',
                    error: error.message,
                }, error instanceof HTTPAuthError ? { status: error.status } : {}));
            }
            else {
                this.pusher.send_event('pusher:subscribe', {
                    auth: data.auth,
                    channel_data: data.channel_data,
                    channel: this.name,
                });
            }
        });
    }
    unsubscribe() {
        this.subscribed = false;
        this.pusher.send_event('pusher:unsubscribe', {
            channel: this.name,
        });
    }
    cancelSubscription() {
        this.subscriptionCancelled = true;
    }
    reinstateSubscription() {
        this.subscriptionCancelled = false;
    }
}

;// ./src/core/channels/private_channel.ts

class PrivateChannel extends Channel {
    authorize(socketId, callback) {
        return this.pusher.config.channelAuthorizer({
            channelName: this.name,
            socketId: socketId,
        }, callback);
    }
}

;// ./src/core/channels/members.ts

class Members {
    constructor() {
        this.reset();
    }
    get(id) {
        if (Object.prototype.hasOwnProperty.call(this.members, id)) {
            return {
                id: id,
                info: this.members[id],
            };
        }
        else {
            return null;
        }
    }
    each(callback) {
        objectApply(this.members, (member, id) => {
            callback(this.get(id));
        });
    }
    setMyID(id) {
        this.myID = id;
    }
    onSubscription(subscriptionData) {
        this.members = subscriptionData.presence.hash;
        this.count = subscriptionData.presence.count;
        this.me = this.get(this.myID);
    }
    addMember(memberData) {
        if (this.get(memberData.user_id) === null) {
            this.count++;
        }
        this.members[memberData.user_id] = memberData.user_info;
        return this.get(memberData.user_id);
    }
    removeMember(memberData) {
        var member = this.get(memberData.user_id);
        if (member) {
            delete this.members[memberData.user_id];
            this.count--;
        }
        return member;
    }
    reset() {
        this.members = {};
        this.count = 0;
        this.myID = null;
        this.me = null;
    }
}

;// ./src/core/channels/presence_channel.ts
var __awaiter = (undefined && undefined.__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());
    });
};




class PresenceChannel extends PrivateChannel {
    constructor(name, pusher) {
        super(name, pusher);
        this.members = new Members();
    }
    authorize(socketId, callback) {
        super.authorize(socketId, (error, authData) => __awaiter(this, void 0, void 0, function* () {
            if (!error) {
                authData = authData;
                if (authData.channel_data != null) {
                    var channelData = JSON.parse(authData.channel_data);
                    this.members.setMyID(channelData.user_id);
                }
                else {
                    yield this.pusher.user.signinDonePromise;
                    if (this.pusher.user.user_data != null) {
                        this.members.setMyID(this.pusher.user.user_data.id);
                    }
                    else {
                        let suffix = url_store.buildLogSuffix('authorizationEndpoint');
                        logger.error(`Invalid auth response for channel '${this.name}', ` +
                            `expected 'channel_data' field. ${suffix}, ` +
                            `or the user should be signed in.`);
                        callback('Invalid auth response');
                        return;
                    }
                }
            }
            callback(error, authData);
        }));
    }
    handleEvent(event) {
        var eventName = event.event;
        if (eventName.indexOf('pusher_internal:') === 0) {
            this.handleInternalEvent(event);
        }
        else {
            var data = event.data;
            var metadata = {};
            if (event.user_id) {
                metadata.user_id = event.user_id;
            }
            this.emit(eventName, data, metadata);
        }
    }
    handleInternalEvent(event) {
        var eventName = event.event;
        var data = event.data;
        switch (eventName) {
            case 'pusher_internal:subscription_succeeded':
                this.handleSubscriptionSucceededEvent(event);
                break;
            case 'pusher_internal:subscription_count':
                this.handleSubscriptionCountEvent(event);
                break;
            case 'pusher_internal:member_added':
                var addedMember = this.members.addMember(data);
                this.emit('pusher:member_added', addedMember);
                break;
            case 'pusher_internal:member_removed':
                var removedMember = this.members.removeMember(data);
                if (removedMember) {
                    this.emit('pusher:member_removed', removedMember);
                }
                break;
        }
    }
    handleSubscriptionSucceededEvent(event) {
        this.subscriptionPending = false;
        this.subscribed = true;
        if (this.subscriptionCancelled) {
            this.pusher.unsubscribe(this.name);
        }
        else {
            this.members.onSubscription(event.data);
            this.emit('pusher:subscription_succeeded', this.members);
        }
    }
    disconnect() {
        this.members.reset();
        super.disconnect();
    }
}

// EXTERNAL MODULE: ./node_modules/@stablelib/utf8/lib/utf8.js
var utf8 = __webpack_require__(978);
// EXTERNAL MODULE: ./node_modules/@stablelib/base64/lib/base64.js
var base64 = __webpack_require__(594);
;// ./src/core/channels/encrypted_channel.ts





class EncryptedChannel extends PrivateChannel {
    constructor(name, pusher, nacl) {
        super(name, pusher);
        this.key = null;
        this.nacl = nacl;
    }
    authorize(socketId, callback) {
        super.authorize(socketId, (error, authData) => {
            if (error) {
                callback(error, authData);
                return;
            }
            let sharedSecret = authData['shared_secret'];
            if (!sharedSecret) {
                callback(new Error(`No shared_secret key in auth payload for encrypted channel: ${this.name}`), null);
                return;
            }
            this.key = (0,base64.decode)(sharedSecret);
            delete authData['shared_secret'];
            callback(null, authData);
        });
    }
    trigger(event, data) {
        throw new UnsupportedFeature('Client events are not currently supported for encrypted channels');
    }
    handleEvent(event) {
        var eventName = event.event;
        var data = event.data;
        if (eventName.indexOf('pusher_internal:') === 0 ||
            eventName.indexOf('pusher:') === 0) {
            super.handleEvent(event);
            return;
        }
        this.handleEncryptedEvent(eventName, data);
    }
    handleEncryptedEvent(event, data) {
        if (!this.key) {
            logger.debug('Received encrypted event before key has been retrieved from the authEndpoint');
            return;
        }
        if (!data.ciphertext || !data.nonce) {
            logger.error('Unexpected format for encrypted event, expected object with `ciphertext` and `nonce` fields, got: ' +
                data);
            return;
        }
        let cipherText = (0,base64.decode)(data.ciphertext);
        if (cipherText.length < this.nacl.secretbox.overheadLength) {
            logger.error(`Expected encrypted event ciphertext length to be ${this.nacl.secretbox.overheadLength}, got: ${cipherText.length}`);
            return;
        }
        let nonce = (0,base64.decode)(data.nonce);
        if (nonce.length < this.nacl.secretbox.nonceLength) {
            logger.error(`Expected encrypted event nonce length to be ${this.nacl.secretbox.nonceLength}, got: ${nonce.length}`);
            return;
        }
        let bytes = this.nacl.secretbox.open(cipherText, nonce, this.key);
        if (bytes === null) {
            logger.debug('Failed to decrypt an event, probably because it was encrypted with a different key. Fetching a new key from the authEndpoint...');
            this.authorize(this.pusher.connection.socket_id, (error, authData) => {
                if (error) {
                    logger.error(`Failed to make a request to the authEndpoint: ${authData}. Unable to fetch new key, so dropping encrypted event`);
                    return;
                }
                bytes = this.nacl.secretbox.open(cipherText, nonce, this.key);
                if (bytes === null) {
                    logger.error(`Failed to decrypt event with new key. Dropping encrypted event`);
                    return;
                }
                this.emit(event, this.getDataToEmit(bytes));
                return;
            });
            return;
        }
        this.emit(event, this.getDataToEmit(bytes));
    }
    getDataToEmit(bytes) {
        let raw = (0,utf8/* decode */.D4)(bytes);
        try {
            return JSON.parse(raw);
        }
        catch (_a) {
            return raw;
        }
    }
}

;// ./src/core/connection/connection_manager.ts





class ConnectionManager extends Dispatcher {
    constructor(key, options) {
        super();
        this.state = 'initialized';
        this.connection = null;
        this.key = key;
        this.options = options;
        this.timeline = this.options.timeline;
        this.usingTLS = this.options.useTLS;
        this.errorCallbacks = this.buildErrorCallbacks();
        this.connectionCallbacks = this.buildConnectionCallbacks(this.errorCallbacks);
        this.handshakeCallbacks = this.buildHandshakeCallbacks(this.errorCallbacks);
        var Network = runtime.getNetwork();
        Network.bind('online', () => {
            this.timeline.info({ netinfo: 'online' });
            if (this.state === 'connecting' || this.state === 'unavailable') {
                this.retryIn(0);
            }
        });
        Network.bind('offline', () => {
            this.timeline.info({ netinfo: 'offline' });
            if (this.connection) {
                this.sendActivityCheck();
            }
        });
        this.updateStrategy();
    }
    switchCluster(key) {
        this.key = key;
        this.updateStrategy();
        this.retryIn(0);
    }
    connect() {
        if (this.connection || this.runner) {
            return;
        }
        if (!this.strategy.isSupported()) {
            this.updateState('failed');
            return;
        }
        this.updateState('connecting');
        this.startConnecting();
        this.setUnavailableTimer();
    }
    send(data) {
        if (this.connection) {
            return this.connection.send(data);
        }
        else {
            return false;
        }
    }
    send_event(name, data, channel) {
        if (this.connection) {
            return this.connection.send_event(name, data, channel);
        }
        else {
            return false;
        }
    }
    disconnect() {
        this.disconnectInternally();
        this.updateState('disconnected');
    }
    isUsingTLS() {
        return this.usingTLS;
    }
    startConnecting() {
        var callback = (error, handshake) => {
            if (error) {
                this.runner = this.strategy.connect(0, callback);
            }
            else {
                if (handshake.action === 'error') {
                    this.emit('error', {
                        type: 'HandshakeError',
                        error: handshake.error,
                    });
                    this.timeline.error({ handshakeError: handshake.error });
                }
                else {
                    this.abortConnecting();
                    this.handshakeCallbacks[handshake.action](handshake);
                }
            }
        };
        this.runner = this.strategy.connect(0, callback);
    }
    abortConnecting() {
        if (this.runner) {
            this.runner.abort();
            this.runner = null;
        }
    }
    disconnectInternally() {
        this.abortConnecting();
        this.clearRetryTimer();
        this.clearUnavailableTimer();
        if (this.connection) {
            var connection = this.abandonConnection();
            connection.close();
        }
    }
    updateStrategy() {
        this.strategy = this.options.getStrategy({
            key: this.key,
            timeline: this.timeline,
            useTLS: this.usingTLS,
        });
    }
    retryIn(delay) {
        this.timeline.info({ action: 'retry', delay: delay });
        if (delay > 0) {
            this.emit('connecting_in', Math.round(delay / 1000));
        }
        this.retryTimer = new OneOffTimer(delay || 0, () => {
            this.disconnectInternally();
            this.connect();
        });
    }
    clearRetryTimer() {
        if (this.retryTimer) {
            this.retryTimer.ensureAborted();
            this.retryTimer = null;
        }
    }
    setUnavailableTimer() {
        this.unavailableTimer = new OneOffTimer(this.options.unavailableTimeout, () => {
            this.updateState('unavailable');
        });
    }
    clearUnavailableTimer() {
        if (this.unavailableTimer) {
            this.unavailableTimer.ensureAborted();
        }
    }
    sendActivityCheck() {
        this.stopActivityCheck();
        this.connection.ping();
        this.activityTimer = new OneOffTimer(this.options.pongTimeout, () => {
            this.timeline.error({ pong_timed_out: this.options.pongTimeout });
            this.retryIn(0);
        });
    }
    resetActivityCheck() {
        this.stopActivityCheck();
        if (this.connection && !this.connection.handlesActivityChecks()) {
            this.activityTimer = new OneOffTimer(this.activityTimeout, () => {
                this.sendActivityCheck();
            });
        }
    }
    stopActivityCheck() {
        if (this.activityTimer) {
            this.activityTimer.ensureAborted();
        }
    }
    buildConnectionCallbacks(errorCallbacks) {
        return extend({}, errorCallbacks, {
            message: (message) => {
                this.resetActivityCheck();
                this.emit('message', message);
            },
            ping: () => {
                this.send_event('pusher:pong', {});
            },
            activity: () => {
                this.resetActivityCheck();
            },
            error: (error) => {
                this.emit('error', error);
            },
            closed: () => {
                this.abandonConnection();
                if (this.shouldRetry()) {
                    this.retryIn(1000);
                }
            },
        });
    }
    buildHandshakeCallbacks(errorCallbacks) {
        return extend({}, errorCallbacks, {
            connected: (handshake) => {
                this.activityTimeout = Math.min(this.options.activityTimeout, handshake.activityTimeout, handshake.connection.activityTimeout || Infinity);
                this.clearUnavailableTimer();
                this.setConnection(handshake.connection);
                this.socket_id = this.connection.id;
                this.updateState('connected', { socket_id: this.socket_id });
            },
        });
    }
    buildErrorCallbacks() {
        let withErrorEmitted = (callback) => {
            return (result) => {
                if (result.error) {
                    this.emit('error', { type: 'WebSocketError', error: result.error });
                }
                callback(result);
            };
        };
        return {
            tls_only: withErrorEmitted(() => {
                this.usingTLS = true;
                this.updateStrategy();
                this.retryIn(0);
            }),
            refused: withErrorEmitted(() => {
                this.disconnect();
            }),
            backoff: withErrorEmitted(() => {
                this.retryIn(1000);
            }),
            retry: withErrorEmitted(() => {
                this.retryIn(0);
            }),
        };
    }
    setConnection(connection) {
        this.connection = connection;
        for (var event in this.connectionCallbacks) {
            this.connection.bind(event, this.connectionCallbacks[event]);
        }
        this.resetActivityCheck();
    }
    abandonConnection() {
        if (!this.connection) {
            return;
        }
        this.stopActivityCheck();
        for (var event in this.connectionCallbacks) {
            this.connection.unbind(event, this.connectionCallbacks[event]);
        }
        var connection = this.connection;
        this.connection = null;
        return connection;
    }
    updateState(newState, data) {
        var previousState = this.state;
        this.state = newState;
        if (previousState !== newState) {
            var newStateDescription = newState;
            if (newStateDescription === 'connected') {
                newStateDescription += ' with new socket ID ' + data.socket_id;
            }
            logger.debug('State changed', previousState + ' -> ' + newStateDescription);
            this.timeline.info({ state: newState, params: data });
            this.emit('state_change', { previous: previousState, current: newState });
            this.emit(newState, data);
        }
    }
    shouldRetry() {
        return this.state === 'connecting' || this.state === 'connected';
    }
}

;// ./src/core/channels/channels.ts




class Channels {
    constructor() {
        this.channels = {};
    }
    add(name, pusher) {
        if (!this.channels[name]) {
            this.channels[name] = createChannel(name, pusher);
        }
        return this.channels[name];
    }
    all() {
        return values(this.channels);
    }
    find(name) {
        return this.channels[name];
    }
    remove(name) {
        var channel = this.channels[name];
        delete this.channels[name];
        return channel;
    }
    disconnect() {
        objectApply(this.channels, function (channel) {
            channel.disconnect();
        });
    }
}
function createChannel(name, pusher) {
    if (name.indexOf('private-encrypted-') === 0) {
        if (pusher.config.nacl) {
            return factory.createEncryptedChannel(name, pusher, pusher.config.nacl);
        }
        let errMsg = 'Tried to subscribe to a private-encrypted- channel but no nacl implementation available';
        let suffix = url_store.buildLogSuffix('encryptedChannelSupport');
        throw new UnsupportedFeature(`${errMsg}. ${suffix}`);
    }
    else if (name.indexOf('private-') === 0) {
        return factory.createPrivateChannel(name, pusher);
    }
    else if (name.indexOf('presence-') === 0) {
        return factory.createPresenceChannel(name, pusher);
    }
    else if (name.indexOf('#') === 0) {
        throw new BadChannelName('Cannot create a channel with name "' + name + '".');
    }
    else {
        return factory.createChannel(name, pusher);
    }
}

;// ./src/core/utils/factory.ts









var Factory = {
    createChannels() {
        return new Channels();
    },
    createConnectionManager(key, options) {
        return new ConnectionManager(key, options);
    },
    createChannel(name, pusher) {
        return new Channel(name, pusher);
    },
    createPrivateChannel(name, pusher) {
        return new PrivateChannel(name, pusher);
    },
    createPresenceChannel(name, pusher) {
        return new PresenceChannel(name, pusher);
    },
    createEncryptedChannel(name, pusher, nacl) {
        return new EncryptedChannel(name, pusher, nacl);
    },
    createTimelineSender(timeline, options) {
        return new TimelineSender(timeline, options);
    },
    createHandshake(transport, callback) {
        return new Handshake(transport, callback);
    },
    createAssistantToTheTransportManager(manager, transport, options) {
        return new AssistantToTheTransportManager(manager, transport, options);
    },
};
/* harmony default export */ const factory = (Factory);

;// ./src/core/transports/transport_manager.ts

class TransportManager {
    constructor(options) {
        this.options = options || {};
        this.livesLeft = this.options.lives || Infinity;
    }
    getAssistant(transport) {
        return factory.createAssistantToTheTransportManager(this, transport, {
            minPingDelay: this.options.minPingDelay,
            maxPingDelay: this.options.maxPingDelay,
        });
    }
    isAlive() {
        return this.livesLeft > 0;
    }
    reportDeath() {
        this.livesLeft -= 1;
    }
}

;// ./src/core/strategies/sequential_strategy.ts



class SequentialStrategy {
    constructor(strategies, options) {
        this.strategies = strategies;
        this.loop = Boolean(options.loop);
        this.failFast = Boolean(options.failFast);
        this.timeout = options.timeout;
        this.timeoutLimit = options.timeoutLimit;
    }
    isSupported() {
        return any(this.strategies, util.method('isSupported'));
    }
    connect(minPriority, callback) {
        var strategies = this.strategies;
        var current = 0;
        var timeout = this.timeout;
        var runner = null;
        var tryNextStrategy = (error, handshake) => {
            if (handshake) {
                callback(null, handshake);
            }
            else {
                current = current + 1;
                if (this.loop) {
                    current = current % strategies.length;
                }
                if (current < strategies.length) {
                    if (timeout) {
                        timeout = timeout * 2;
                        if (this.timeoutLimit) {
                            timeout = Math.min(timeout, this.timeoutLimit);
                        }
                    }
                    runner = this.tryStrategy(strategies[current], minPriority, { timeout, failFast: this.failFast }, tryNextStrategy);
                }
                else {
                    callback(true);
                }
            }
        };
        runner = this.tryStrategy(strategies[current], minPriority, { timeout: timeout, failFast: this.failFast }, tryNextStrategy);
        return {
            abort: function () {
                runner.abort();
            },
            forceMinPriority: function (p) {
                minPriority = p;
                if (runner) {
                    runner.forceMinPriority(p);
                }
            },
        };
    }
    tryStrategy(strategy, minPriority, options, callback) {
        var timer = null;
        var runner = null;
        if (options.timeout > 0) {
            timer = new OneOffTimer(options.timeout, function () {
                runner.abort();
                callback(true);
            });
        }
        runner = strategy.connect(minPriority, function (error, handshake) {
            if (error && timer && timer.isRunning() && !options.failFast) {
                return;
            }
            if (timer) {
                timer.ensureAborted();
            }
            callback(error, handshake);
        });
        return {
            abort: function () {
                if (timer) {
                    timer.ensureAborted();
                }
                runner.abort();
            },
            forceMinPriority: function (p) {
                runner.forceMinPriority(p);
            },
        };
    }
}

;// ./src/core/strategies/best_connected_ever_strategy.ts


class BestConnectedEverStrategy {
    constructor(strategies) {
        this.strategies = strategies;
    }
    isSupported() {
        return any(this.strategies, util.method('isSupported'));
    }
    connect(minPriority, callback) {
        return connect(this.strategies, minPriority, function (i, runners) {
            return function (error, handshake) {
                runners[i].error = error;
                if (error) {
                    if (allRunnersFailed(runners)) {
                        callback(true);
                    }
                    return;
                }
                apply(runners, function (runner) {
                    runner.forceMinPriority(handshake.transport.priority);
                });
                callback(null, handshake);
            };
        });
    }
}
function connect(strategies, minPriority, callbackBuilder) {
    var runners = map(strategies, function (strategy, i, _, rs) {
        return strategy.connect(minPriority, callbackBuilder(i, rs));
    });
    return {
        abort: function () {
            apply(runners, abortRunner);
        },
        forceMinPriority: function (p) {
            apply(runners, function (runner) {
                runner.forceMinPriority(p);
            });
        },
    };
}
function allRunnersFailed(runners) {
    return collections_all(runners, function (runner) {
        return Boolean(runner.error);
    });
}
function abortRunner(runner) {
    if (!runner.error && !runner.aborted) {
        runner.abort();
        runner.aborted = true;
    }
}

;// ./src/core/strategies/websocket_prioritized_cached_strategy.ts




class WebSocketPrioritizedCachedStrategy {
    constructor(strategy, transports, options) {
        this.strategy = strategy;
        this.transports = transports;
        this.ttl = options.ttl || 1800 * 1000;
        this.usingTLS = options.useTLS;
        this.timeline = options.timeline;
    }
    isSupported() {
        return this.strategy.isSupported();
    }
    connect(minPriority, callback) {
        var usingTLS = this.usingTLS;
        var info = fetchTransportCache(usingTLS);
        var cacheSkipCount = info && info.cacheSkipCount ? info.cacheSkipCount : 0;
        var strategies = [this.strategy];
        if (info && info.timestamp + this.ttl >= util.now()) {
            var transport = this.transports[info.transport];
            if (transport) {
                if (['ws', 'wss'].includes(info.transport) || cacheSkipCount > 3) {
                    this.timeline.info({
                        cached: true,
                        transport: info.transport,
                        latency: info.latency,
                    });
                    strategies.push(new SequentialStrategy([transport], {
                        timeout: info.latency * 2 + 1000,
                        failFast: true,
                    }));
                }
                else {
                    cacheSkipCount++;
                }
            }
        }
        var startTimestamp = util.now();
        var runner = strategies
            .pop()
            .connect(minPriority, function cb(error, handshake) {
            if (error) {
                flushTransportCache(usingTLS);
                if (strategies.length > 0) {
                    startTimestamp = util.now();
                    runner = strategies.pop().connect(minPriority, cb);
                }
                else {
                    callback(error);
                }
            }
            else {
                storeTransportCache(usingTLS, handshake.transport.name, util.now() - startTimestamp, cacheSkipCount);
                callback(null, handshake);
            }
        });
        return {
            abort: function () {
                runner.abort();
            },
            forceMinPriority: function (p) {
                minPriority = p;
                if (runner) {
                    runner.forceMinPriority(p);
                }
            },
        };
    }
}
function getTransportCacheKey(usingTLS) {
    return 'pusherTransport' + (usingTLS ? 'TLS' : 'NonTLS');
}
function fetchTransportCache(usingTLS) {
    var storage = runtime.getLocalStorage();
    if (storage) {
        try {
            var serializedCache = storage[getTransportCacheKey(usingTLS)];
            if (serializedCache) {
                return JSON.parse(serializedCache);
            }
        }
        catch (e) {
            flushTransportCache(usingTLS);
        }
    }
    return null;
}
function storeTransportCache(usingTLS, transport, latency, cacheSkipCount) {
    var storage = runtime.getLocalStorage();
    if (storage) {
        try {
            storage[getTransportCacheKey(usingTLS)] = safeJSONStringify({
                timestamp: util.now(),
                transport: transport,
                latency: latency,
                cacheSkipCount: cacheSkipCount,
            });
        }
        catch (e) {
        }
    }
}
function flushTransportCache(usingTLS) {
    var storage = runtime.getLocalStorage();
    if (storage) {
        try {
            delete storage[getTransportCacheKey(usingTLS)];
        }
        catch (e) {
        }
    }
}

;// ./src/core/strategies/delayed_strategy.ts

class DelayedStrategy {
    constructor(strategy, { delay: number }) {
        this.strategy = strategy;
        this.options = { delay: number };
    }
    isSupported() {
        return this.strategy.isSupported();
    }
    connect(minPriority, callback) {
        var strategy = this.strategy;
        var runner;
        var timer = new OneOffTimer(this.options.delay, function () {
            runner = strategy.connect(minPriority, callback);
        });
        return {
            abort: function () {
                timer.ensureAborted();
                if (runner) {
                    runner.abort();
                }
            },
            forceMinPriority: function (p) {
                minPriority = p;
                if (runner) {
                    runner.forceMinPriority(p);
                }
            },
        };
    }
}

;// ./src/core/strategies/if_strategy.ts
class IfStrategy {
    constructor(test, trueBranch, falseBranch) {
        this.test = test;
        this.trueBranch = trueBranch;
        this.falseBranch = falseBranch;
    }
    isSupported() {
        var branch = this.test() ? this.trueBranch : this.falseBranch;
        return branch.isSupported();
    }
    connect(minPriority, callback) {
        var branch = this.test() ? this.trueBranch : this.falseBranch;
        return branch.connect(minPriority, callback);
    }
}

;// ./src/core/strategies/first_connected_strategy.ts
class FirstConnectedStrategy {
    constructor(strategy) {
        this.strategy = strategy;
    }
    isSupported() {
        return this.strategy.isSupported();
    }
    connect(minPriority, callback) {
        var runner = this.strategy.connect(minPriority, function (error, handshake) {
            if (handshake) {
                runner.abort();
            }
            callback(error, handshake);
        });
        return runner;
    }
}

;// ./src/runtimes/web/default_strategy.ts







function testSupportsStrategy(strategy) {
    return function () {
        return strategy.isSupported();
    };
}
var getDefaultStrategy = function (config, baseOptions, defineTransport) {
    var definedTransports = {};
    function defineTransportStrategy(name, type, priority, options, manager) {
        var transport = defineTransport(config, name, type, priority, options, manager);
        definedTransports[name] = transport;
        return transport;
    }
    var ws_options = Object.assign({}, baseOptions, {
        hostNonTLS: config.wsHost + ':' + config.wsPort,
        hostTLS: config.wsHost + ':' + config.wssPort,
        httpPath: config.wsPath,
    });
    var wss_options = Object.assign({}, ws_options, {
        useTLS: true,
    });
    var sockjs_options = Object.assign({}, baseOptions, {
        hostNonTLS: config.httpHost + ':' + config.httpPort,
        hostTLS: config.httpHost + ':' + config.httpsPort,
        httpPath: config.httpPath,
    });
    var timeouts = {
        loop: true,
        timeout: 15000,
        timeoutLimit: 60000,
    };
    var ws_manager = new TransportManager({
        minPingDelay: 10000,
        maxPingDelay: config.activityTimeout,
    });
    var streaming_manager = new TransportManager({
        lives: 2,
        minPingDelay: 10000,
        maxPingDelay: config.activityTimeout,
    });
    var ws_transport = defineTransportStrategy('ws', 'ws', 3, ws_options, ws_manager);
    var wss_transport = defineTransportStrategy('wss', 'ws', 3, wss_options, ws_manager);
    var sockjs_transport = defineTransportStrategy('sockjs', 'sockjs', 1, sockjs_options);
    var xhr_streaming_transport = defineTransportStrategy('xhr_streaming', 'xhr_streaming', 1, sockjs_options, streaming_manager);
    var xdr_streaming_transport = defineTransportStrategy('xdr_streaming', 'xdr_streaming', 1, sockjs_options, streaming_manager);
    var xhr_polling_transport = defineTransportStrategy('xhr_polling', 'xhr_polling', 1, sockjs_options);
    var xdr_polling_transport = defineTransportStrategy('xdr_polling', 'xdr_polling', 1, sockjs_options);
    var ws_loop = new SequentialStrategy([ws_transport], timeouts);
    var wss_loop = new SequentialStrategy([wss_transport], timeouts);
    var sockjs_loop = new SequentialStrategy([sockjs_transport], timeouts);
    var streaming_loop = new SequentialStrategy([
        new IfStrategy(testSupportsStrategy(xhr_streaming_transport), xhr_streaming_transport, xdr_streaming_transport),
    ], timeouts);
    var polling_loop = new SequentialStrategy([
        new IfStrategy(testSupportsStrategy(xhr_polling_transport), xhr_polling_transport, xdr_polling_transport),
    ], timeouts);
    var http_loop = new SequentialStrategy([
        new IfStrategy(testSupportsStrategy(streaming_loop), new BestConnectedEverStrategy([
            streaming_loop,
            new DelayedStrategy(polling_loop, { delay: 4000 }),
        ]), polling_loop),
    ], timeouts);
    var http_fallback_loop = new IfStrategy(testSupportsStrategy(http_loop), http_loop, sockjs_loop);
    var wsStrategy;
    if (baseOptions.useTLS) {
        wsStrategy = new BestConnectedEverStrategy([
            ws_loop,
            new DelayedStrategy(http_fallback_loop, { delay: 2000 }),
        ]);
    }
    else {
        wsStrategy = new BestConnectedEverStrategy([
            ws_loop,
            new DelayedStrategy(wss_loop, { delay: 2000 }),
            new DelayedStrategy(http_fallback_loop, { delay: 5000 }),
        ]);
    }
    return new WebSocketPrioritizedCachedStrategy(new FirstConnectedStrategy(new IfStrategy(testSupportsStrategy(ws_transport), wsStrategy, http_fallback_loop)), definedTransports, {
        ttl: 1800000,
        timeline: baseOptions.timeline,
        useTLS: baseOptions.useTLS,
    });
};
/* harmony default export */ const default_strategy = (getDefaultStrategy);

;// ./src/runtimes/web/transports/transport_connection_initializer.ts

/* harmony default export */ function transport_connection_initializer() {
    var self = this;
    self.timeline.info(self.buildTimelineMessage({
        transport: self.name + (self.options.useTLS ? 's' : ''),
    }));
    if (self.hooks.isInitialized()) {
        self.changeState('initialized');
    }
    else if (self.hooks.file) {
        self.changeState('initializing');
        Dependencies.load(self.hooks.file, { useTLS: self.options.useTLS }, function (error, callback) {
            if (self.hooks.isInitialized()) {
                self.changeState('initialized');
                callback(true);
            }
            else {
                if (error) {
                    self.onError(error);
                }
                self.onClose();
                callback(false);
            }
        });
    }
    else {
        self.onClose();
    }
}

;// ./src/runtimes/web/http/http_xdomain_request.ts

var hooks = {
    getRequest: function (socket) {
        var xdr = new window.XDomainRequest();
        xdr.ontimeout = function () {
            socket.emit('error', new RequestTimedOut());
            socket.close();
        };
        xdr.onerror = function (e) {
            socket.emit('error', e);
            socket.close();
        };
        xdr.onprogress = function () {
            if (xdr.responseText && xdr.responseText.length > 0) {
                socket.onChunk(200, xdr.responseText);
            }
        };
        xdr.onload = function () {
            if (xdr.responseText && xdr.responseText.length > 0) {
                socket.onChunk(200, xdr.responseText);
            }
            socket.emit('finished', 200);
            socket.close();
        };
        return xdr;
    },
    abortRequest: function (xdr) {
        xdr.ontimeout = xdr.onerror = xdr.onprogress = xdr.onload = null;
        xdr.abort();
    },
};
/* harmony default export */ const http_xdomain_request = (hooks);

;// ./src/core/http/http_request.ts


const MAX_BUFFER_LENGTH = 256 * 1024;
class HTTPRequest extends Dispatcher {
    constructor(hooks, method, url) {
        super();
        this.hooks = hooks;
        this.method = method;
        this.url = url;
    }
    start(payload) {
        this.position = 0;
        this.xhr = this.hooks.getRequest(this);
        this.unloader = () => {
            this.close();
        };
        runtime.addUnloadListener(this.unloader);
        this.xhr.open(this.method, this.url, true);
        if (this.xhr.setRequestHeader) {
            this.xhr.setRequestHeader('Content-Type', 'application/json');
        }
        this.xhr.send(payload);
    }
    close() {
        if (this.unloader) {
            runtime.removeUnloadListener(this.unloader);
            this.unloader = null;
        }
        if (this.xhr) {
            this.hooks.abortRequest(this.xhr);
            this.xhr = null;
        }
    }
    onChunk(status, data) {
        while (true) {
            var chunk = this.advanceBuffer(data);
            if (chunk) {
                this.emit('chunk', { status: status, data: chunk });
            }
            else {
                break;
            }
        }
        if (this.isBufferTooLong(data)) {
            this.emit('buffer_too_long');
        }
    }
    advanceBuffer(buffer) {
        var unreadData = buffer.slice(this.position);
        var endOfLinePosition = unreadData.indexOf('\n');
        if (endOfLinePosition !== -1) {
            this.position += endOfLinePosition + 1;
            return unreadData.slice(0, endOfLinePosition);
        }
        else {
            return null;
        }
    }
    isBufferTooLong(buffer) {
        return this.position === buffer.length && buffer.length > MAX_BUFFER_LENGTH;
    }
}

;// ./src/core/http/state.ts
var State;
(function (State) {
    State[State["CONNECTING"] = 0] = "CONNECTING";
    State[State["OPEN"] = 1] = "OPEN";
    State[State["CLOSED"] = 3] = "CLOSED";
})(State || (State = {}));
/* harmony default export */ const state = (State);

;// ./src/core/http/http_socket.ts



var autoIncrement = 1;
class HTTPSocket {
    constructor(hooks, url) {
        this.hooks = hooks;
        this.session = randomNumber(1000) + '/' + randomString(8);
        this.location = getLocation(url);
        this.readyState = state.CONNECTING;
        this.openStream();
    }
    send(payload) {
        return this.sendRaw(JSON.stringify([payload]));
    }
    ping() {
        this.hooks.sendHeartbeat(this);
    }
    close(code, reason) {
        this.onClose(code, reason, true);
    }
    sendRaw(payload) {
        if (this.readyState === state.OPEN) {
            try {
                runtime.createSocketRequest('POST', getUniqueURL(getSendURL(this.location, this.session))).start(payload);
                return true;
            }
            catch (e) {
                return false;
            }
        }
        else {
            return false;
        }
    }
    reconnect() {
        this.closeStream();
        this.openStream();
    }
    onClose(code, reason, wasClean) {
        this.closeStream();
        this.readyState = state.CLOSED;
        if (this.onclose) {
            this.onclose({
                code: code,
                reason: reason,
                wasClean: wasClean,
            });
        }
    }
    onChunk(chunk) {
        if (chunk.status !== 200) {
            return;
        }
        if (this.readyState === state.OPEN) {
            this.onActivity();
        }
        var payload;
        var type = chunk.data.slice(0, 1);
        switch (type) {
            case 'o':
                payload = JSON.parse(chunk.data.slice(1) || '{}');
                this.onOpen(payload);
                break;
            case 'a':
                payload = JSON.parse(chunk.data.slice(1) || '[]');
                for (var i = 0; i < payload.length; i++) {
                    this.onEvent(payload[i]);
                }
                break;
            case 'm':
                payload = JSON.parse(chunk.data.slice(1) || 'null');
                this.onEvent(payload);
                break;
            case 'h':
                this.hooks.onHeartbeat(this);
                break;
            case 'c':
                payload = JSON.parse(chunk.data.slice(1) || '[]');
                this.onClose(payload[0], payload[1], true);
                break;
        }
    }
    onOpen(options) {
        if (this.readyState === state.CONNECTING) {
            if (options && options.hostname) {
                this.location.base = replaceHost(this.location.base, options.hostname);
            }
            this.readyState = state.OPEN;
            if (this.onopen) {
                this.onopen();
            }
        }
        else {
            this.onClose(1006, 'Server lost session', true);
        }
    }
    onEvent(event) {
        if (this.readyState === state.OPEN && this.onmessage) {
            this.onmessage({ data: event });
        }
    }
    onActivity() {
        if (this.onactivity) {
            this.onactivity();
        }
    }
    onError(error) {
        if (this.onerror) {
            this.onerror(error);
        }
    }
    openStream() {
        this.stream = runtime.createSocketRequest('POST', getUniqueURL(this.hooks.getReceiveURL(this.location, this.session)));
        this.stream.bind('chunk', (chunk) => {
            this.onChunk(chunk);
        });
        this.stream.bind('finished', (status) => {
            this.hooks.onFinished(this, status);
        });
        this.stream.bind('buffer_too_long', () => {
            this.reconnect();
        });
        try {
            this.stream.start();
        }
        catch (error) {
            util.defer(() => {
                this.onError(error);
                this.onClose(1006, 'Could not start streaming', false);
            });
        }
    }
    closeStream() {
        if (this.stream) {
            this.stream.unbind_all();
            this.stream.close();
            this.stream = null;
        }
    }
}
function getLocation(url) {
    var parts = /([^\?]*)\/*(\??.*)/.exec(url);
    return {
        base: parts[1],
        queryString: parts[2],
    };
}
function getSendURL(url, session) {
    return url.base + '/' + session + '/xhr_send';
}
function getUniqueURL(url) {
    var separator = url.indexOf('?') === -1 ? '?' : '&';
    return url + separator + 't=' + +new Date() + '&n=' + autoIncrement++;
}
function replaceHost(url, hostname) {
    var urlParts = /(https?:\/\/)([^\/:]+)((\/|:)?.*)/.exec(url);
    return urlParts[1] + hostname + urlParts[3];
}
function randomNumber(max) {
    return runtime.randomInt(max);
}
function randomString(length) {
    var result = [];
    for (var i = 0; i < length; i++) {
        result.push(randomNumber(32).toString(32));
    }
    return result.join('');
}
/* harmony default export */ const http_socket = (HTTPSocket);

;// ./src/core/http/http_streaming_socket.ts
var http_streaming_socket_hooks = {
    getReceiveURL: function (url, session) {
        return url.base + '/' + session + '/xhr_streaming' + url.queryString;
    },
    onHeartbeat: function (socket) {
        socket.sendRaw('[]');
    },
    sendHeartbeat: function (socket) {
        socket.sendRaw('[]');
    },
    onFinished: function (socket, status) {
        socket.onClose(1006, 'Connection interrupted (' + status + ')', false);
    },
};
/* harmony default export */ const http_streaming_socket = (http_streaming_socket_hooks);

;// ./src/core/http/http_polling_socket.ts
var http_polling_socket_hooks = {
    getReceiveURL: function (url, session) {
        return url.base + '/' + session + '/xhr' + url.queryString;
    },
    onHeartbeat: function () {
    },
    sendHeartbeat: function (socket) {
        socket.sendRaw('[]');
    },
    onFinished: function (socket, status) {
        if (status === 200) {
            socket.reconnect();
        }
        else {
            socket.onClose(1006, 'Connection interrupted (' + status + ')', false);
        }
    },
};
/* harmony default export */ const http_polling_socket = (http_polling_socket_hooks);

;// ./src/runtimes/isomorphic/http/http_xhr_request.ts

var http_xhr_request_hooks = {
    getRequest: function (socket) {
        var Constructor = runtime.getXHRAPI();
        var xhr = new Constructor();
        xhr.onreadystatechange = xhr.onprogress = function () {
            switch (xhr.readyState) {
                case 3:
                    if (xhr.responseText && xhr.responseText.length > 0) {
                        socket.onChunk(xhr.status, xhr.responseText);
                    }
                    break;
                case 4:
                    if (xhr.responseText && xhr.responseText.length > 0) {
                        socket.onChunk(xhr.status, xhr.responseText);
                    }
                    socket.emit('finished', xhr.status);
                    socket.close();
                    break;
            }
        };
        return xhr;
    },
    abortRequest: function (xhr) {
        xhr.onreadystatechange = null;
        xhr.abort();
    },
};
/* harmony default export */ const http_xhr_request = (http_xhr_request_hooks);

;// ./src/runtimes/isomorphic/http/http.ts





var HTTP = {
    createStreamingSocket(url) {
        return this.createSocket(http_streaming_socket, url);
    },
    createPollingSocket(url) {
        return this.createSocket(http_polling_socket, url);
    },
    createSocket(hooks, url) {
        return new http_socket(hooks, url);
    },
    createXHR(method, url) {
        return this.createRequest(http_xhr_request, method, url);
    },
    createRequest(hooks, method, url) {
        return new HTTPRequest(hooks, method, url);
    },
};
/* harmony default export */ const http_http = (HTTP);

;// ./src/runtimes/web/http/http.ts


http_http.createXDR = function (method, url) {
    return this.createRequest(http_xdomain_request, method, url);
};
/* harmony default export */ const web_http_http = (http_http);

;// ./src/runtimes/web/runtime.ts












var Runtime = {
    nextAuthCallbackID: 1,
    auth_callbacks: {},
    ScriptReceivers: ScriptReceivers,
    DependenciesReceivers: DependenciesReceivers,
    getDefaultStrategy: default_strategy,
    Transports: transports_transports,
    transportConnectionInitializer: transport_connection_initializer,
    HTTPFactory: web_http_http,
    TimelineTransport: jsonp_timeline,
    getXHRAPI() {
        return window.XMLHttpRequest;
    },
    getWebSocketAPI() {
        return window.WebSocket || window.MozWebSocket;
    },
    setup(PusherClass) {
        window.Pusher = PusherClass;
        var initializeOnDocumentBody = () => {
            this.onDocumentBody(PusherClass.ready);
        };
        if (!window.JSON) {
            Dependencies.load('json2', {}, initializeOnDocumentBody);
        }
        else {
            initializeOnDocumentBody();
        }
    },
    getDocument() {
        return document;
    },
    getProtocol() {
        return this.getDocument().location.protocol;
    },
    getAuthorizers() {
        return { ajax: xhr_auth, jsonp: jsonp_auth };
    },
    onDocumentBody(callback) {
        if (document.body) {
            callback();
        }
        else {
            setTimeout(() => {
                this.onDocumentBody(callback);
            }, 0);
        }
    },
    createJSONPRequest(url, data) {
        return new JSONPRequest(url, data);
    },
    createScriptRequest(src) {
        return new ScriptRequest(src);
    },
    getLocalStorage() {
        try {
            return window.localStorage;
        }
        catch (e) {
            return undefined;
        }
    },
    createXHR() {
        if (this.getXHRAPI()) {
            return this.createXMLHttpRequest();
        }
        else {
            return this.createMicrosoftXHR();
        }
    },
    createXMLHttpRequest() {
        var Constructor = this.getXHRAPI();
        return new Constructor();
    },
    createMicrosoftXHR() {
        return new ActiveXObject('Microsoft.XMLHTTP');
    },
    getNetwork() {
        return Network;
    },
    createWebSocket(url) {
        var Constructor = this.getWebSocketAPI();
        return new Constructor(url);
    },
    createSocketRequest(method, url) {
        if (this.isXHRSupported()) {
            return this.HTTPFactory.createXHR(method, url);
        }
        else if (this.isXDRSupported(url.indexOf('https:') === 0)) {
            return this.HTTPFactory.createXDR(method, url);
        }
        else {
            throw 'Cross-origin HTTP requests are not supported';
        }
    },
    isXHRSupported() {
        var Constructor = this.getXHRAPI();
        return (Boolean(Constructor) && new Constructor().withCredentials !== undefined);
    },
    isXDRSupported(useTLS) {
        var protocol = useTLS ? 'https:' : 'http:';
        var documentProtocol = this.getProtocol();
        return (Boolean(window['XDomainRequest']) && documentProtocol === protocol);
    },
    addUnloadListener(listener) {
        if (window.addEventListener !== undefined) {
            window.addEventListener('unload', listener, false);
        }
        else if (window.attachEvent !== undefined) {
            window.attachEvent('onunload', listener);
        }
    },
    removeUnloadListener(listener) {
        if (window.addEventListener !== undefined) {
            window.removeEventListener('unload', listener, false);
        }
        else if (window.detachEvent !== undefined) {
            window.detachEvent('onunload', listener);
        }
    },
    randomInt(max) {
        const random = function () {
            const crypto = window.crypto || window['msCrypto'];
            const random = crypto.getRandomValues(new Uint32Array(1))[0];
            return random / Math.pow(2, 32);
        };
        return Math.floor(random() * max);
    },
};
/* harmony default export */ const runtime = (Runtime);

;// ./src/core/timeline/level.ts
var TimelineLevel;
(function (TimelineLevel) {
    TimelineLevel[TimelineLevel["ERROR"] = 3] = "ERROR";
    TimelineLevel[TimelineLevel["INFO"] = 6] = "INFO";
    TimelineLevel[TimelineLevel["DEBUG"] = 7] = "DEBUG";
})(TimelineLevel || (TimelineLevel = {}));
/* harmony default export */ const level = (TimelineLevel);

;// ./src/core/timeline/timeline.ts



class Timeline {
    constructor(key, session, options) {
        this.key = key;
        this.session = session;
        this.events = [];
        this.options = options || {};
        this.sent = 0;
        this.uniqueID = 0;
    }
    log(level, event) {
        if (level <= this.options.level) {
            this.events.push(extend({}, event, { timestamp: util.now() }));
            if (this.options.limit && this.events.length > this.options.limit) {
                this.events.shift();
            }
        }
    }
    error(event) {
        this.log(level.ERROR, event);
    }
    info(event) {
        this.log(level.INFO, event);
    }
    debug(event) {
        this.log(level.DEBUG, event);
    }
    isEmpty() {
        return this.events.length === 0;
    }
    send(sendfn, callback) {
        var data = extend({
            session: this.session,
            bundle: this.sent + 1,
            key: this.key,
            lib: 'js',
            version: this.options.version,
            cluster: this.options.cluster,
            features: this.options.features,
            timeline: this.events,
        }, this.options.params);
        this.events = [];
        sendfn(data, (error, result) => {
            if (!error) {
                this.sent++;
            }
            if (callback) {
                callback(error, result);
            }
        });
        return true;
    }
    generateUniqueID() {
        this.uniqueID++;
        return this.uniqueID;
    }
}

;// ./src/core/strategies/transport_strategy.ts




class TransportStrategy {
    constructor(name, priority, transport, options) {
        this.name = name;
        this.priority = priority;
        this.transport = transport;
        this.options = options || {};
    }
    isSupported() {
        return this.transport.isSupported({
            useTLS: this.options.useTLS,
        });
    }
    connect(minPriority, callback) {
        if (!this.isSupported()) {
            return failAttempt(new UnsupportedStrategy(), callback);
        }
        else if (this.priority < minPriority) {
            return failAttempt(new TransportPriorityTooLow(), callback);
        }
        var connected = false;
        var transport = this.transport.createConnection(this.name, this.priority, this.options.key, this.options);
        var handshake = null;
        var onInitialized = function () {
            transport.unbind('initialized', onInitialized);
            transport.connect();
        };
        var onOpen = function () {
            handshake = factory.createHandshake(transport, function (result) {
                connected = true;
                unbindListeners();
                callback(null, result);
            });
        };
        var onError = function (error) {
            unbindListeners();
            callback(error);
        };
        var onClosed = function () {
            unbindListeners();
            var serializedTransport;
            serializedTransport = safeJSONStringify(transport);
            callback(new TransportClosed(serializedTransport));
        };
        var unbindListeners = function () {
            transport.unbind('initialized', onInitialized);
            transport.unbind('open', onOpen);
            transport.unbind('error', onError);
            transport.unbind('closed', onClosed);
        };
        transport.bind('initialized', onInitialized);
        transport.bind('open', onOpen);
        transport.bind('error', onError);
        transport.bind('closed', onClosed);
        transport.initialize();
        return {
            abort: () => {
                if (connected) {
                    return;
                }
                unbindListeners();
                if (handshake) {
                    handshake.close();
                }
                else {
                    transport.close();
                }
            },
            forceMinPriority: (p) => {
                if (connected) {
                    return;
                }
                if (this.priority < p) {
                    if (handshake) {
                        handshake.close();
                    }
                    else {
                        transport.close();
                    }
                }
            },
        };
    }
}
function failAttempt(error, callback) {
    util.defer(function () {
        callback(error);
    });
    return {
        abort: function () { },
        forceMinPriority: function () { },
    };
}

;// ./src/core/strategies/strategy_builder.ts





const { Transports: strategy_builder_Transports } = runtime;
var defineTransport = function (config, name, type, priority, options, manager) {
    var transportClass = strategy_builder_Transports[type];
    if (!transportClass) {
        throw new UnsupportedTransport(type);
    }
    var enabled = (!config.enabledTransports ||
        arrayIndexOf(config.enabledTransports, name) !== -1) &&
        (!config.disabledTransports ||
            arrayIndexOf(config.disabledTransports, name) === -1);
    var transport;
    if (enabled) {
        options = Object.assign({ ignoreNullOrigin: config.ignoreNullOrigin }, options);
        transport = new TransportStrategy(name, priority, manager ? manager.getAssistant(transportClass) : transportClass, options);
    }
    else {
        transport = strategy_builder_UnsupportedStrategy;
    }
    return transport;
};
var strategy_builder_UnsupportedStrategy = {
    isSupported: function () {
        return false;
    },
    connect: function (_, callback) {
        var deferred = util.defer(function () {
            callback(new UnsupportedStrategy());
        });
        return {
            abort: function () {
                deferred.ensureAborted();
            },
            forceMinPriority: function () { },
        };
    },
};

;// ./src/core/options.ts

function validateOptions(options) {
    if (options == null) {
        throw 'You must pass an options object';
    }
    if (options.cluster == null) {
        throw 'Options object must provide a cluster';
    }
    if ('disableStats' in options) {
        logger.warn('The disableStats option is deprecated in favor of enableStats');
    }
}

;// ./src/core/auth/user_authenticator.ts


const composeChannelQuery = (params, authOptions) => {
    var query = 'socket_id=' + encodeURIComponent(params.socketId);
    for (var key in authOptions.params) {
        query +=
            '&' +
                encodeURIComponent(key) +
                '=' +
                encodeURIComponent(authOptions.params[key]);
    }
    if (authOptions.paramsProvider != null) {
        let dynamicParams = authOptions.paramsProvider();
        for (var key in dynamicParams) {
            query +=
                '&' +
                    encodeURIComponent(key) +
                    '=' +
                    encodeURIComponent(dynamicParams[key]);
        }
    }
    return query;
};
const UserAuthenticator = (authOptions) => {
    if (typeof runtime.getAuthorizers()[authOptions.transport] === 'undefined') {
        throw `'${authOptions.transport}' is not a recognized auth transport`;
    }
    return (params, callback) => {
        const query = composeChannelQuery(params, authOptions);
        runtime.getAuthorizers()[authOptions.transport](runtime, query, authOptions, AuthRequestType.UserAuthentication, callback);
    };
};
/* harmony default export */ const user_authenticator = (UserAuthenticator);

;// ./src/core/auth/channel_authorizer.ts


const channel_authorizer_composeChannelQuery = (params, authOptions) => {
    var query = 'socket_id=' + encodeURIComponent(params.socketId);
    query += '&channel_name=' + encodeURIComponent(params.channelName);
    for (var key in authOptions.params) {
        query +=
            '&' +
                encodeURIComponent(key) +
                '=' +
                encodeURIComponent(authOptions.params[key]);
    }
    if (authOptions.paramsProvider != null) {
        let dynamicParams = authOptions.paramsProvider();
        for (var key in dynamicParams) {
            query +=
                '&' +
                    encodeURIComponent(key) +
                    '=' +
                    encodeURIComponent(dynamicParams[key]);
        }
    }
    return query;
};
const ChannelAuthorizer = (authOptions) => {
    if (typeof runtime.getAuthorizers()[authOptions.transport] === 'undefined') {
        throw `'${authOptions.transport}' is not a recognized auth transport`;
    }
    return (params, callback) => {
        const query = channel_authorizer_composeChannelQuery(params, authOptions);
        runtime.getAuthorizers()[authOptions.transport](runtime, query, authOptions, AuthRequestType.ChannelAuthorization, callback);
    };
};
/* harmony default export */ const channel_authorizer = (ChannelAuthorizer);

;// ./src/core/auth/deprecated_channel_authorizer.ts
const ChannelAuthorizerProxy = (pusher, authOptions, channelAuthorizerGenerator) => {
    const deprecatedAuthorizerOptions = {
        authTransport: authOptions.transport,
        authEndpoint: authOptions.endpoint,
        auth: {
            params: authOptions.params,
            headers: authOptions.headers,
        },
    };
    return (params, callback) => {
        const channel = pusher.channel(params.channelName);
        const channelAuthorizer = channelAuthorizerGenerator(channel, deprecatedAuthorizerOptions);
        channelAuthorizer.authorize(params.socketId, callback);
    };
};

;// ./src/core/config.ts





function getConfig(opts, pusher) {
    let config = {
        activityTimeout: opts.activityTimeout || defaults.activityTimeout,
        cluster: opts.cluster,
        httpPath: opts.httpPath || defaults.httpPath,
        httpPort: opts.httpPort || defaults.httpPort,
        httpsPort: opts.httpsPort || defaults.httpsPort,
        pongTimeout: opts.pongTimeout || defaults.pongTimeout,
        statsHost: opts.statsHost || defaults.stats_host,
        unavailableTimeout: opts.unavailableTimeout || defaults.unavailableTimeout,
        wsPath: opts.wsPath || defaults.wsPath,
        wsPort: opts.wsPort || defaults.wsPort,
        wssPort: opts.wssPort || defaults.wssPort,
        enableStats: getEnableStatsConfig(opts),
        httpHost: getHttpHost(opts),
        useTLS: shouldUseTLS(opts),
        wsHost: getWebsocketHost(opts),
        userAuthenticator: buildUserAuthenticator(opts),
        channelAuthorizer: buildChannelAuthorizer(opts, pusher),
    };
    if ('disabledTransports' in opts)
        config.disabledTransports = opts.disabledTransports;
    if ('enabledTransports' in opts)
        config.enabledTransports = opts.enabledTransports;
    if ('ignoreNullOrigin' in opts)
        config.ignoreNullOrigin = opts.ignoreNullOrigin;
    if ('timelineParams' in opts)
        config.timelineParams = opts.timelineParams;
    if ('nacl' in opts) {
        config.nacl = opts.nacl;
    }
    return config;
}
function getHttpHost(opts) {
    if (opts.httpHost) {
        return opts.httpHost;
    }
    if (opts.cluster) {
        return `sockjs-${opts.cluster}.pusher.com`;
    }
    return defaults.httpHost;
}
function getWebsocketHost(opts) {
    if (opts.wsHost) {
        return opts.wsHost;
    }
    return getWebsocketHostFromCluster(opts.cluster);
}
function getWebsocketHostFromCluster(cluster) {
    return `ws-${cluster}.pusher.com`;
}
function shouldUseTLS(opts) {
    if (runtime.getProtocol() === 'https:') {
        return true;
    }
    else if (opts.forceTLS === false) {
        return false;
    }
    return true;
}
function getEnableStatsConfig(opts) {
    if ('enableStats' in opts) {
        return opts.enableStats;
    }
    if ('disableStats' in opts) {
        return !opts.disableStats;
    }
    return false;
}
const hasCustomHandler = (auth) => {
    return 'customHandler' in auth && auth['customHandler'] != null;
};
function buildUserAuthenticator(opts) {
    const userAuthentication = Object.assign(Object.assign({}, defaults.userAuthentication), opts.userAuthentication);
    if (hasCustomHandler(userAuthentication)) {
        return userAuthentication['customHandler'];
    }
    return user_authenticator(userAuthentication);
}
function buildChannelAuth(opts, pusher) {
    let channelAuthorization;
    if ('channelAuthorization' in opts) {
        channelAuthorization = Object.assign(Object.assign({}, defaults.channelAuthorization), opts.channelAuthorization);
    }
    else {
        channelAuthorization = {
            transport: opts.authTransport || defaults.authTransport,
            endpoint: opts.authEndpoint || defaults.authEndpoint,
        };
        if ('auth' in opts) {
            if ('params' in opts.auth)
                channelAuthorization.params = opts.auth.params;
            if ('headers' in opts.auth)
                channelAuthorization.headers = opts.auth.headers;
        }
        if ('authorizer' in opts) {
            return {
                customHandler: ChannelAuthorizerProxy(pusher, channelAuthorization, opts.authorizer),
            };
        }
    }
    return channelAuthorization;
}
function buildChannelAuthorizer(opts, pusher) {
    const channelAuthorization = buildChannelAuth(opts, pusher);
    if (hasCustomHandler(channelAuthorization)) {
        return channelAuthorization['customHandler'];
    }
    return channel_authorizer(channelAuthorization);
}

;// ./src/core/watchlist.ts


class WatchlistFacade extends Dispatcher {
    constructor(pusher) {
        super(function (eventName, data) {
            logger.debug(`No callbacks on watchlist events for ${eventName}`);
        });
        this.pusher = pusher;
        this.bindWatchlistInternalEvent();
    }
    handleEvent(pusherEvent) {
        pusherEvent.data.events.forEach((watchlistEvent) => {
            this.emit(watchlistEvent.name, watchlistEvent);
        });
    }
    bindWatchlistInternalEvent() {
        this.pusher.connection.bind('message', (pusherEvent) => {
            var eventName = pusherEvent.event;
            if (eventName === 'pusher_internal:watchlist_events') {
                this.handleEvent(pusherEvent);
            }
        });
    }
}

;// ./src/core/utils/flat_promise.ts
function flatPromise() {
    let resolve, reject;
    const promise = new Promise((res, rej) => {
        resolve = res;
        reject = rej;
    });
    return { promise, resolve, reject };
}
/* harmony default export */ const flat_promise = (flatPromise);

;// ./src/core/user.ts





class UserFacade extends Dispatcher {
    constructor(pusher) {
        super(function (eventName, data) {
            logger.debug('No callbacks on user for ' + eventName);
        });
        this.signin_requested = false;
        this.user_data = null;
        this.serverToUserChannel = null;
        this.signinDonePromise = null;
        this._signinDoneResolve = null;
        this._onAuthorize = (err, authData) => {
            if (err) {
                logger.warn(`Error during signin: ${err}`);
                this._cleanup();
                return;
            }
            this.pusher.send_event('pusher:signin', {
                auth: authData.auth,
                user_data: authData.user_data,
            });
        };
        this.pusher = pusher;
        this.pusher.connection.bind('state_change', ({ previous, current }) => {
            if (previous !== 'connected' && current === 'connected') {
                this._signin();
            }
            if (previous === 'connected' && current !== 'connected') {
                this._cleanup();
                this._newSigninPromiseIfNeeded();
            }
        });
        this.watchlist = new WatchlistFacade(pusher);
        this.pusher.connection.bind('message', (event) => {
            var eventName = event.event;
            if (eventName === 'pusher:signin_success') {
                this._onSigninSuccess(event.data);
            }
            if (this.serverToUserChannel &&
                this.serverToUserChannel.name === event.channel) {
                this.serverToUserChannel.handleEvent(event);
            }
        });
    }
    signin() {
        if (this.signin_requested) {
            return;
        }
        this.signin_requested = true;
        this._signin();
    }
    _signin() {
        if (!this.signin_requested) {
            return;
        }
        this._newSigninPromiseIfNeeded();
        if (this.pusher.connection.state !== 'connected') {
            return;
        }
        this.pusher.config.userAuthenticator({
            socketId: this.pusher.connection.socket_id,
        }, this._onAuthorize);
    }
    _onSigninSuccess(data) {
        try {
            this.user_data = JSON.parse(data.user_data);
        }
        catch (e) {
            logger.error(`Failed parsing user data after signin: ${data.user_data}`);
            this._cleanup();
            return;
        }
        if (typeof this.user_data.id !== 'string' || this.user_data.id === '') {
            logger.error(`user_data doesn't contain an id. user_data: ${this.user_data}`);
            this._cleanup();
            return;
        }
        this._signinDoneResolve();
        this._subscribeChannels();
    }
    _subscribeChannels() {
        const ensure_subscribed = (channel) => {
            if (channel.subscriptionPending && channel.subscriptionCancelled) {
                channel.reinstateSubscription();
            }
            else if (!channel.subscriptionPending &&
                this.pusher.connection.state === 'connected') {
                channel.subscribe();
            }
        };
        this.serverToUserChannel = new Channel(`#server-to-user-${this.user_data.id}`, this.pusher);
        this.serverToUserChannel.bind_global((eventName, data) => {
            if (eventName.indexOf('pusher_internal:') === 0 ||
                eventName.indexOf('pusher:') === 0) {
                return;
            }
            this.emit(eventName, data);
        });
        ensure_subscribed(this.serverToUserChannel);
    }
    _cleanup() {
        this.user_data = null;
        if (this.serverToUserChannel) {
            this.serverToUserChannel.unbind_all();
            this.serverToUserChannel.disconnect();
            this.serverToUserChannel = null;
        }
        if (this.signin_requested) {
            this._signinDoneResolve();
        }
    }
    _newSigninPromiseIfNeeded() {
        if (!this.signin_requested) {
            return;
        }
        if (this.signinDonePromise && !this.signinDonePromise.done) {
            return;
        }
        const { promise, resolve, reject: _ } = flat_promise();
        promise.done = false;
        const setDone = () => {
            promise.done = true;
        };
        promise.then(setDone).catch(setDone);
        this.signinDonePromise = promise;
        this._signinDoneResolve = resolve;
    }
}

;// ./src/core/pusher.ts













class Pusher {
    static ready() {
        Pusher.isReady = true;
        for (var i = 0, l = Pusher.instances.length; i < l; i++) {
            Pusher.instances[i].connect();
        }
    }
    static getClientFeatures() {
        return keys(filterObject({ ws: runtime.Transports.ws }, function (t) {
            return t.isSupported({});
        }));
    }
    constructor(app_key, options) {
        checkAppKey(app_key);
        validateOptions(options);
        this.key = app_key;
        this.options = options;
        this.config = getConfig(this.options, this);
        this.channels = factory.createChannels();
        this.global_emitter = new Dispatcher();
        this.sessionID = runtime.randomInt(1000000000);
        this.timeline = new Timeline(this.key, this.sessionID, {
            cluster: this.config.cluster,
            features: Pusher.getClientFeatures(),
            params: this.config.timelineParams || {},
            limit: 50,
            level: level.INFO,
            version: defaults.VERSION,
        });
        if (this.config.enableStats) {
            this.timelineSender = factory.createTimelineSender(this.timeline, {
                host: this.config.statsHost,
                path: '/timeline/v2/' + runtime.TimelineTransport.name,
            });
        }
        var getStrategy = (options) => {
            return runtime.getDefaultStrategy(this.config, options, defineTransport);
        };
        this.connection = factory.createConnectionManager(this.key, {
            getStrategy: getStrategy,
            timeline: this.timeline,
            activityTimeout: this.config.activityTimeout,
            pongTimeout: this.config.pongTimeout,
            unavailableTimeout: this.config.unavailableTimeout,
            useTLS: Boolean(this.config.useTLS),
        });
        this.connection.bind('connected', () => {
            this.subscribeAll();
            if (this.timelineSender) {
                this.timelineSender.send(this.connection.isUsingTLS());
            }
        });
        this.connection.bind('message', (event) => {
            var eventName = event.event;
            var internal = eventName.indexOf('pusher_internal:') === 0;
            if (event.channel) {
                var channel = this.channel(event.channel);
                if (channel) {
                    channel.handleEvent(event);
                }
            }
            if (!internal) {
                this.global_emitter.emit(event.event, event.data);
            }
        });
        this.connection.bind('connecting', () => {
            this.channels.disconnect();
        });
        this.connection.bind('disconnected', () => {
            this.channels.disconnect();
        });
        this.connection.bind('error', (err) => {
            logger.warn(err);
        });
        Pusher.instances.push(this);
        this.timeline.info({ instances: Pusher.instances.length });
        this.user = new UserFacade(this);
        if (Pusher.isReady) {
            this.connect();
        }
    }
    switchCluster(options) {
        const { appKey, cluster } = options;
        this.key = appKey;
        this.options = Object.assign(Object.assign({}, this.options), { cluster });
        this.config = getConfig(this.options, this);
        this.connection.switchCluster(this.key);
    }
    channel(name) {
        return this.channels.find(name);
    }
    allChannels() {
        return this.channels.all();
    }
    connect() {
        this.connection.connect();
        if (this.timelineSender) {
            if (!this.timelineSenderTimer) {
                var usingTLS = this.connection.isUsingTLS();
                var timelineSender = this.timelineSender;
                this.timelineSenderTimer = new PeriodicTimer(60000, function () {
                    timelineSender.send(usingTLS);
                });
            }
        }
    }
    disconnect() {
        this.connection.disconnect();
        if (this.timelineSenderTimer) {
            this.timelineSenderTimer.ensureAborted();
            this.timelineSenderTimer = null;
        }
    }
    bind(event_name, callback, context) {
        this.global_emitter.bind(event_name, callback, context);
        return this;
    }
    unbind(event_name, callback, context) {
        this.global_emitter.unbind(event_name, callback, context);
        return this;
    }
    bind_global(callback) {
        this.global_emitter.bind_global(callback);
        return this;
    }
    unbind_global(callback) {
        this.global_emitter.unbind_global(callback);
        return this;
    }
    unbind_all(callback) {
        this.global_emitter.unbind_all();
        return this;
    }
    subscribeAll() {
        var channelName;
        for (channelName in this.channels.channels) {
            if (this.channels.channels.hasOwnProperty(channelName)) {
                this.subscribe(channelName);
            }
        }
    }
    subscribe(channel_name) {
        var channel = this.channels.add(channel_name, this);
        if (channel.subscriptionPending && channel.subscriptionCancelled) {
            channel.reinstateSubscription();
        }
        else if (!channel.subscriptionPending &&
            this.connection.state === 'connected') {
            channel.subscribe();
        }
        return channel;
    }
    unsubscribe(channel_name) {
        var channel = this.channels.find(channel_name);
        if (channel && channel.subscriptionPending) {
            channel.cancelSubscription();
        }
        else {
            channel = this.channels.remove(channel_name);
            if (channel && channel.subscribed) {
                channel.unsubscribe();
            }
        }
    }
    send_event(event_name, data, channel) {
        return this.connection.send_event(event_name, data, channel);
    }
    shouldUseTLS() {
        return this.config.useTLS;
    }
    signin() {
        this.user.signin();
    }
}
Pusher.instances = [];
Pusher.isReady = false;
Pusher.logToConsole = false;
Pusher.Runtime = runtime;
Pusher.ScriptReceivers = runtime.ScriptReceivers;
Pusher.DependenciesReceivers = runtime.DependenciesReceivers;
Pusher.auth_callbacks = runtime.auth_callbacks;
/* harmony default export */ const pusher = (Pusher);
function checkAppKey(key) {
    if (key === null || key === undefined) {
        throw 'You must pass your app key when you instantiate Pusher.';
    }
}
runtime.setup(Pusher);

// EXTERNAL MODULE: ./node_modules/tweetnacl/nacl-fast.js
var nacl_fast = __webpack_require__(601);
;// ./src/core/pusher-with-encryption.ts



class PusherWithEncryption extends pusher {
    constructor(app_key, options) {
        pusher.logToConsole = PusherWithEncryption.logToConsole;
        pusher.log = PusherWithEncryption.log;
        validateOptions(options);
        options.nacl = nacl_fast;
        super(app_key, options);
    }
}


/***/ },

/***/ 281
() {

/* (ignored) */

/***/ }

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/******/ 		var cachedModule = __webpack_module_cache__[moduleId];
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/******/ 			return cachedModule.exports;
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/******/ 				if(__webpack_require__.o(definition, key) && !__webpack_require__.o(exports, key)) {
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/******/ 				}
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/******/ 		};
/******/ 	})();
/******/ 	
/******/ 	/* webpack/runtime/hasOwnProperty shorthand */
/******/ 	(() => {
/******/ 		__webpack_require__.o = (obj, prop) => (Object.prototype.hasOwnProperty.call(obj, prop))
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/******/ 	
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/******/ 	// startup
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/******/ 	var __webpack_exports__ = __webpack_require__(42);
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;
});
//# sourceMappingURL=pusher-with-encryption.js.map