vite/dist/node/chunks/dep-d25c0094.js.map

Native-ESM powered web dev build tool

{"version":3,"file":"dep-d25c0094.js","sources":["../../../../../node_modules/node-forge/lib/forge.js","../../../../../node_modules/node-forge/lib/baseN.js","../../../../../node_modules/node-forge/lib/util.js","../../../../../node_modules/node-forge/lib/cipher.js","../../../../../node_modules/node-forge/lib/cipherModes.js","../../../../../node_modules/node-forge/lib/aes.js","../../../../../node_modules/node-forge/lib/oids.js","../../../../../node_modules/node-forge/lib/asn1.js","../../../../../node_modules/node-forge/lib/md.js","../../../../../node_modules/node-forge/lib/hmac.js","../../../../../node_modules/node-forge/lib/md5.js","../../../../../node_modules/node-forge/lib/pem.js","../../../../../node_modules/node-forge/lib/des.js","../../../../../node_modules/node-forge/lib/pbkdf2.js","../../../../../node_modules/node-forge/lib/sha256.js","../../../../../node_modules/node-forge/lib/prng.js","../../../../../node_modules/node-forge/lib/random.js","../../../../../node_modules/node-forge/lib/rc2.js","../../../../../node_modules/node-forge/lib/jsbn.js","../../../../../node_modules/node-forge/lib/sha1.js","../../../../../node_modules/node-forge/lib/pkcs1.js","../../../../../node_modules/node-forge/lib/prime.js","../../../../../node_modules/node-forge/lib/rsa.js","../../../../../node_modules/node-forge/lib/pbe.js","../../../../../node_modules/node-forge/lib/pkcs7asn1.js","../../../../../node_modules/node-forge/lib/mgf1.js","../../../../../node_modules/node-forge/lib/mgf.js","../../../../../node_modules/node-forge/lib/pss.js","../../../../../node_modules/node-forge/lib/x509.js","../../../../../node_modules/node-forge/lib/pkcs12.js","../../../../../node_modules/node-forge/lib/pki.js","../../../../../node_modules/node-forge/lib/tls.js","../../../../../node_modules/node-forge/lib/aesCipherSuites.js","../../../../../node_modules/node-forge/lib/debug.js","../../../../../node_modules/node-forge/lib/sha512.js","../../../../../node_modules/node-forge/lib/asn1-validator.js","../../../../../node_modules/node-forge/lib/ed25519.js","../../../../../node_modules/node-forge/lib/kem.js","../../../../../node_modules/node-forge/lib/log.js","../../../../../node_modules/node-forge/lib/pkcs7.js","../../../../../node_modules/node-forge/lib/ssh.js","../../../../../node_modules/node-forge/lib/task.js","../../../../../node_modules/node-forge/lib/index.js","../../../../../node_modules/selfsigned/index.js"],"sourcesContent":["/**\n * Node.js module for Forge.\n *\n * @author Dave Longley\n *\n * Copyright 2011-2016 Digital Bazaar, Inc.\n */\nmodule.exports = {\n  // default options\n  options: {\n    usePureJavaScript: false\n  }\n};\n","/**\n * Base-N/Base-X encoding/decoding functions.\n *\n * Original implementation from base-x:\n * https://github.com/cryptocoinjs/base-x\n *\n * Which is MIT licensed:\n *\n * The MIT License (MIT)\n *\n * Copyright base-x contributors (c) 2016\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to deal\n * in the Software without restriction, including without limitation the rights\n * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n * copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in\n * all copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING\n * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER\n * DEALINGS IN THE SOFTWARE.\n */\nvar api = {};\nmodule.exports = api;\n\n// baseN alphabet indexes\nvar _reverseAlphabets = {};\n\n/**\n * BaseN-encodes a Uint8Array using the given alphabet.\n *\n * @param input the Uint8Array to encode.\n * @param maxline the maximum number of encoded characters per line to use,\n *          defaults to none.\n *\n * @return the baseN-encoded output string.\n */\napi.encode = function(input, alphabet, maxline) {\n  if(typeof alphabet !== 'string') {\n    throw new TypeError('\"alphabet\" must be a string.');\n  }\n  if(maxline !== undefined && typeof maxline !== 'number') {\n    throw new TypeError('\"maxline\" must be a number.');\n  }\n\n  var output = '';\n\n  if(!(input instanceof Uint8Array)) {\n    // assume forge byte buffer\n    output = _encodeWithByteBuffer(input, alphabet);\n  } else {\n    var i = 0;\n    var base = alphabet.length;\n    var first = alphabet.charAt(0);\n    var digits = [0];\n    for(i = 0; i < input.length; ++i) {\n      for(var j = 0, carry = input[i]; j < digits.length; ++j) {\n        carry += digits[j] << 8;\n        digits[j] = carry % base;\n        carry = (carry / base) | 0;\n      }\n\n      while(carry > 0) {\n        digits.push(carry % base);\n        carry = (carry / base) | 0;\n      }\n    }\n\n    // deal with leading zeros\n    for(i = 0; input[i] === 0 && i < input.length - 1; ++i) {\n      output += first;\n    }\n    // convert digits to a string\n    for(i = digits.length - 1; i >= 0; --i) {\n      output += alphabet[digits[i]];\n    }\n  }\n\n  if(maxline) {\n    var regex = new RegExp('.{1,' + maxline + '}', 'g');\n    output = output.match(regex).join('\\r\\n');\n  }\n\n  return output;\n};\n\n/**\n * Decodes a baseN-encoded (using the given alphabet) string to a\n * Uint8Array.\n *\n * @param input the baseN-encoded input string.\n *\n * @return the Uint8Array.\n */\napi.decode = function(input, alphabet) {\n  if(typeof input !== 'string') {\n    throw new TypeError('\"input\" must be a string.');\n  }\n  if(typeof alphabet !== 'string') {\n    throw new TypeError('\"alphabet\" must be a string.');\n  }\n\n  var table = _reverseAlphabets[alphabet];\n  if(!table) {\n    // compute reverse alphabet\n    table = _reverseAlphabets[alphabet] = [];\n    for(var i = 0; i < alphabet.length; ++i) {\n      table[alphabet.charCodeAt(i)] = i;\n    }\n  }\n\n  // remove whitespace characters\n  input = input.replace(/\\s/g, '');\n\n  var base = alphabet.length;\n  var first = alphabet.charAt(0);\n  var bytes = [0];\n  for(var i = 0; i < input.length; i++) {\n    var value = table[input.charCodeAt(i)];\n    if(value === undefined) {\n      return;\n    }\n\n    for(var j = 0, carry = value; j < bytes.length; ++j) {\n      carry += bytes[j] * base;\n      bytes[j] = carry & 0xff;\n      carry >>= 8;\n    }\n\n    while(carry > 0) {\n      bytes.push(carry & 0xff);\n      carry >>= 8;\n    }\n  }\n\n  // deal with leading zeros\n  for(var k = 0; input[k] === first && k < input.length - 1; ++k) {\n    bytes.push(0);\n  }\n\n  if(typeof Buffer !== 'undefined') {\n    return Buffer.from(bytes.reverse());\n  }\n\n  return new Uint8Array(bytes.reverse());\n};\n\nfunction _encodeWithByteBuffer(input, alphabet) {\n  var i = 0;\n  var base = alphabet.length;\n  var first = alphabet.charAt(0);\n  var digits = [0];\n  for(i = 0; i < input.length(); ++i) {\n    for(var j = 0, carry = input.at(i); j < digits.length; ++j) {\n      carry += digits[j] << 8;\n      digits[j] = carry % base;\n      carry = (carry / base) | 0;\n    }\n\n    while(carry > 0) {\n      digits.push(carry % base);\n      carry = (carry / base) | 0;\n    }\n  }\n\n  var output = '';\n\n  // deal with leading zeros\n  for(i = 0; input.at(i) === 0 && i < input.length() - 1; ++i) {\n    output += first;\n  }\n  // convert digits to a string\n  for(i = digits.length - 1; i >= 0; --i) {\n    output += alphabet[digits[i]];\n  }\n\n  return output;\n}\n","/**\n * Utility functions for web applications.\n *\n * @author Dave Longley\n *\n * Copyright (c) 2010-2018 Digital Bazaar, Inc.\n */\nvar forge = require('./forge');\nvar baseN = require('./baseN');\n\n/* Utilities API */\nvar util = module.exports = forge.util = forge.util || {};\n\n// define setImmediate and nextTick\n(function() {\n  // use native nextTick (unless we're in webpack)\n  // webpack (or better node-libs-browser polyfill) sets process.browser.\n  // this way we can detect webpack properly\n  if(typeof process !== 'undefined' && process.nextTick && !process.browser) {\n    util.nextTick = process.nextTick;\n    if(typeof setImmediate === 'function') {\n      util.setImmediate = setImmediate;\n    } else {\n      // polyfill setImmediate with nextTick, older versions of node\n      // (those w/o setImmediate) won't totally starve IO\n      util.setImmediate = util.nextTick;\n    }\n    return;\n  }\n\n  // polyfill nextTick with native setImmediate\n  if(typeof setImmediate === 'function') {\n    util.setImmediate = function() { return setImmediate.apply(undefined, arguments); };\n    util.nextTick = function(callback) {\n      return setImmediate(callback);\n    };\n    return;\n  }\n\n  /* Note: A polyfill upgrade pattern is used here to allow combining\n  polyfills. For example, MutationObserver is fast, but blocks UI updates,\n  so it needs to allow UI updates periodically, so it falls back on\n  postMessage or setTimeout. */\n\n  // polyfill with setTimeout\n  util.setImmediate = function(callback) {\n    setTimeout(callback, 0);\n  };\n\n  // upgrade polyfill to use postMessage\n  if(typeof window !== 'undefined' &&\n    typeof window.postMessage === 'function') {\n    var msg = 'forge.setImmediate';\n    var callbacks = [];\n    util.setImmediate = function(callback) {\n      callbacks.push(callback);\n      // only send message when one hasn't been sent in\n      // the current turn of the event loop\n      if(callbacks.length === 1) {\n        window.postMessage(msg, '*');\n      }\n    };\n    function handler(event) {\n      if(event.source === window && event.data === msg) {\n        event.stopPropagation();\n        var copy = callbacks.slice();\n        callbacks.length = 0;\n        copy.forEach(function(callback) {\n          callback();\n        });\n      }\n    }\n    window.addEventListener('message', handler, true);\n  }\n\n  // upgrade polyfill to use MutationObserver\n  if(typeof MutationObserver !== 'undefined') {\n    // polyfill with MutationObserver\n    var now = Date.now();\n    var attr = true;\n    var div = document.createElement('div');\n    var callbacks = [];\n    new MutationObserver(function() {\n      var copy = callbacks.slice();\n      callbacks.length = 0;\n      copy.forEach(function(callback) {\n        callback();\n      });\n    }).observe(div, {attributes: true});\n    var oldSetImmediate = util.setImmediate;\n    util.setImmediate = function(callback) {\n      if(Date.now() - now > 15) {\n        now = Date.now();\n        oldSetImmediate(callback);\n      } else {\n        callbacks.push(callback);\n        // only trigger observer when it hasn't been triggered in\n        // the current turn of the event loop\n        if(callbacks.length === 1) {\n          div.setAttribute('a', attr = !attr);\n        }\n      }\n    };\n  }\n\n  util.nextTick = util.setImmediate;\n})();\n\n// check if running under Node.js\nutil.isNodejs =\n  typeof process !== 'undefined' && process.versions && process.versions.node;\n\n\n// 'self' will also work in Web Workers (instance of WorkerGlobalScope) while\n// it will point to `window` in the main thread.\n// To remain compatible with older browsers, we fall back to 'window' if 'self'\n// is not available.\nutil.globalScope = (function() {\n  if(util.isNodejs) {\n    return global;\n  }\n\n  return typeof self === 'undefined' ? window : self;\n})();\n\n// define isArray\nutil.isArray = Array.isArray || function(x) {\n  return Object.prototype.toString.call(x) === '[object Array]';\n};\n\n// define isArrayBuffer\nutil.isArrayBuffer = function(x) {\n  return typeof ArrayBuffer !== 'undefined' && x instanceof ArrayBuffer;\n};\n\n// define isArrayBufferView\nutil.isArrayBufferView = function(x) {\n  return x && util.isArrayBuffer(x.buffer) && x.byteLength !== undefined;\n};\n\n/**\n * Ensure a bits param is 8, 16, 24, or 32. Used to validate input for\n * algorithms where bit manipulation, JavaScript limitations, and/or algorithm\n * design only allow for byte operations of a limited size.\n *\n * @param n number of bits.\n *\n * Throw Error if n invalid.\n */\nfunction _checkBitsParam(n) {\n  if(!(n === 8 || n === 16 || n === 24 || n === 32)) {\n    throw new Error('Only 8, 16, 24, or 32 bits supported: ' + n);\n  }\n}\n\n// TODO: set ByteBuffer to best available backing\nutil.ByteBuffer = ByteStringBuffer;\n\n/** Buffer w/BinaryString backing */\n\n/**\n * Constructor for a binary string backed byte buffer.\n *\n * @param [b] the bytes to wrap (either encoded as string, one byte per\n *          character, or as an ArrayBuffer or Typed Array).\n */\nfunction ByteStringBuffer(b) {\n  // TODO: update to match DataBuffer API\n\n  // the data in this buffer\n  this.data = '';\n  // the pointer for reading from this buffer\n  this.read = 0;\n\n  if(typeof b === 'string') {\n    this.data = b;\n  } else if(util.isArrayBuffer(b) || util.isArrayBufferView(b)) {\n    if(typeof Buffer !== 'undefined' && b instanceof Buffer) {\n      this.data = b.toString('binary');\n    } else {\n      // convert native buffer to forge buffer\n      // FIXME: support native buffers internally instead\n      var arr = new Uint8Array(b);\n      try {\n        this.data = String.fromCharCode.apply(null, arr);\n      } catch(e) {\n        for(var i = 0; i < arr.length; ++i) {\n          this.putByte(arr[i]);\n        }\n      }\n    }\n  } else if(b instanceof ByteStringBuffer ||\n    (typeof b === 'object' && typeof b.data === 'string' &&\n    typeof b.read === 'number')) {\n    // copy existing buffer\n    this.data = b.data;\n    this.read = b.read;\n  }\n\n  // used for v8 optimization\n  this._constructedStringLength = 0;\n}\nutil.ByteStringBuffer = ByteStringBuffer;\n\n/* Note: This is an optimization for V8-based browsers. When V8 concatenates\n  a string, the strings are only joined logically using a \"cons string\" or\n  \"constructed/concatenated string\". These containers keep references to one\n  another and can result in very large memory usage. For example, if a 2MB\n  string is constructed by concatenating 4 bytes together at a time, the\n  memory usage will be ~44MB; so ~22x increase. The strings are only joined\n  together when an operation requiring their joining takes place, such as\n  substr(). This function is called when adding data to this buffer to ensure\n  these types of strings are periodically joined to reduce the memory\n  footprint. */\nvar _MAX_CONSTRUCTED_STRING_LENGTH = 4096;\nutil.ByteStringBuffer.prototype._optimizeConstructedString = function(x) {\n  this._constructedStringLength += x;\n  if(this._constructedStringLength > _MAX_CONSTRUCTED_STRING_LENGTH) {\n    // this substr() should cause the constructed string to join\n    this.data.substr(0, 1);\n    this._constructedStringLength = 0;\n  }\n};\n\n/**\n * Gets the number of bytes in this buffer.\n *\n * @return the number of bytes in this buffer.\n */\nutil.ByteStringBuffer.prototype.length = function() {\n  return this.data.length - this.read;\n};\n\n/**\n * Gets whether or not this buffer is empty.\n *\n * @return true if this buffer is empty, false if not.\n */\nutil.ByteStringBuffer.prototype.isEmpty = function() {\n  return this.length() <= 0;\n};\n\n/**\n * Puts a byte in this buffer.\n *\n * @param b the byte to put.\n *\n * @return this buffer.\n */\nutil.ByteStringBuffer.prototype.putByte = function(b) {\n  return this.putBytes(String.fromCharCode(b));\n};\n\n/**\n * Puts a byte in this buffer N times.\n *\n * @param b the byte to put.\n * @param n the number of bytes of value b to put.\n *\n * @return this buffer.\n */\nutil.ByteStringBuffer.prototype.fillWithByte = function(b, n) {\n  b = String.fromCharCode(b);\n  var d = this.data;\n  while(n > 0) {\n    if(n & 1) {\n      d += b;\n    }\n    n >>>= 1;\n    if(n > 0) {\n      b += b;\n    }\n  }\n  this.data = d;\n  this._optimizeConstructedString(n);\n  return this;\n};\n\n/**\n * Puts bytes in this buffer.\n *\n * @param bytes the bytes (as a binary encoded string) to put.\n *\n * @return this buffer.\n */\nutil.ByteStringBuffer.prototype.putBytes = function(bytes) {\n  this.data += bytes;\n  this._optimizeConstructedString(bytes.length);\n  return this;\n};\n\n/**\n * Puts a UTF-16 encoded string into this buffer.\n *\n * @param str the string to put.\n *\n * @return this buffer.\n */\nutil.ByteStringBuffer.prototype.putString = function(str) {\n  return this.putBytes(util.encodeUtf8(str));\n};\n\n/**\n * Puts a 16-bit integer in this buffer in big-endian order.\n *\n * @param i the 16-bit integer.\n *\n * @return this buffer.\n */\nutil.ByteStringBuffer.prototype.putInt16 = function(i) {\n  return this.putBytes(\n    String.fromCharCode(i >> 8 & 0xFF) +\n    String.fromCharCode(i & 0xFF));\n};\n\n/**\n * Puts a 24-bit integer in this buffer in big-endian order.\n *\n * @param i the 24-bit integer.\n *\n * @return this buffer.\n */\nutil.ByteStringBuffer.prototype.putInt24 = function(i) {\n  return this.putBytes(\n    String.fromCharCode(i >> 16 & 0xFF) +\n    String.fromCharCode(i >> 8 & 0xFF) +\n    String.fromCharCode(i & 0xFF));\n};\n\n/**\n * Puts a 32-bit integer in this buffer in big-endian order.\n *\n * @param i the 32-bit integer.\n *\n * @return this buffer.\n */\nutil.ByteStringBuffer.prototype.putInt32 = function(i) {\n  return this.putBytes(\n    String.fromCharCode(i >> 24 & 0xFF) +\n    String.fromCharCode(i >> 16 & 0xFF) +\n    String.fromCharCode(i >> 8 & 0xFF) +\n    String.fromCharCode(i & 0xFF));\n};\n\n/**\n * Puts a 16-bit integer in this buffer in little-endian order.\n *\n * @param i the 16-bit integer.\n *\n * @return this buffer.\n */\nutil.ByteStringBuffer.prototype.putInt16Le = function(i) {\n  return this.putBytes(\n    String.fromCharCode(i & 0xFF) +\n    String.fromCharCode(i >> 8 & 0xFF));\n};\n\n/**\n * Puts a 24-bit integer in this buffer in little-endian order.\n *\n * @param i the 24-bit integer.\n *\n * @return this buffer.\n */\nutil.ByteStringBuffer.prototype.putInt24Le = function(i) {\n  return this.putBytes(\n    String.fromCharCode(i & 0xFF) +\n    String.fromCharCode(i >> 8 & 0xFF) +\n    String.fromCharCode(i >> 16 & 0xFF));\n};\n\n/**\n * Puts a 32-bit integer in this buffer in little-endian order.\n *\n * @param i the 32-bit integer.\n *\n * @return this buffer.\n */\nutil.ByteStringBuffer.prototype.putInt32Le = function(i) {\n  return this.putBytes(\n    String.fromCharCode(i & 0xFF) +\n    String.fromCharCode(i >> 8 & 0xFF) +\n    String.fromCharCode(i >> 16 & 0xFF) +\n    String.fromCharCode(i >> 24 & 0xFF));\n};\n\n/**\n * Puts an n-bit integer in this buffer in big-endian order.\n *\n * @param i the n-bit integer.\n * @param n the number of bits in the integer (8, 16, 24, or 32).\n *\n * @return this buffer.\n */\nutil.ByteStringBuffer.prototype.putInt = function(i, n) {\n  _checkBitsParam(n);\n  var bytes = '';\n  do {\n    n -= 8;\n    bytes += String.fromCharCode((i >> n) & 0xFF);\n  } while(n > 0);\n  return this.putBytes(bytes);\n};\n\n/**\n * Puts a signed n-bit integer in this buffer in big-endian order. Two's\n * complement representation is used.\n *\n * @param i the n-bit integer.\n * @param n the number of bits in the integer (8, 16, 24, or 32).\n *\n * @return this buffer.\n */\nutil.ByteStringBuffer.prototype.putSignedInt = function(i, n) {\n  // putInt checks n\n  if(i < 0) {\n    i += 2 << (n - 1);\n  }\n  return this.putInt(i, n);\n};\n\n/**\n * Puts the given buffer into this buffer.\n *\n * @param buffer the buffer to put into this one.\n *\n * @return this buffer.\n */\nutil.ByteStringBuffer.prototype.putBuffer = function(buffer) {\n  return this.putBytes(buffer.getBytes());\n};\n\n/**\n * Gets a byte from this buffer and advances the read pointer by 1.\n *\n * @return the byte.\n */\nutil.ByteStringBuffer.prototype.getByte = function() {\n  return this.data.charCodeAt(this.read++);\n};\n\n/**\n * Gets a uint16 from this buffer in big-endian order and advances the read\n * pointer by 2.\n *\n * @return the uint16.\n */\nutil.ByteStringBuffer.prototype.getInt16 = function() {\n  var rval = (\n    this.data.charCodeAt(this.read) << 8 ^\n    this.data.charCodeAt(this.read + 1));\n  this.read += 2;\n  return rval;\n};\n\n/**\n * Gets a uint24 from this buffer in big-endian order and advances the read\n * pointer by 3.\n *\n * @return the uint24.\n */\nutil.ByteStringBuffer.prototype.getInt24 = function() {\n  var rval = (\n    this.data.charCodeAt(this.read) << 16 ^\n    this.data.charCodeAt(this.read + 1) << 8 ^\n    this.data.charCodeAt(this.read + 2));\n  this.read += 3;\n  return rval;\n};\n\n/**\n * Gets a uint32 from this buffer in big-endian order and advances the read\n * pointer by 4.\n *\n * @return the word.\n */\nutil.ByteStringBuffer.prototype.getInt32 = function() {\n  var rval = (\n    this.data.charCodeAt(this.read) << 24 ^\n    this.data.charCodeAt(this.read + 1) << 16 ^\n    this.data.charCodeAt(this.read + 2) << 8 ^\n    this.data.charCodeAt(this.read + 3));\n  this.read += 4;\n  return rval;\n};\n\n/**\n * Gets a uint16 from this buffer in little-endian order and advances the read\n * pointer by 2.\n *\n * @return the uint16.\n */\nutil.ByteStringBuffer.prototype.getInt16Le = function() {\n  var rval = (\n    this.data.charCodeAt(this.read) ^\n    this.data.charCodeAt(this.read + 1) << 8);\n  this.read += 2;\n  return rval;\n};\n\n/**\n * Gets a uint24 from this buffer in little-endian order and advances the read\n * pointer by 3.\n *\n * @return the uint24.\n */\nutil.ByteStringBuffer.prototype.getInt24Le = function() {\n  var rval = (\n    this.data.charCodeAt(this.read) ^\n    this.data.charCodeAt(this.read + 1) << 8 ^\n    this.data.charCodeAt(this.read + 2) << 16);\n  this.read += 3;\n  return rval;\n};\n\n/**\n * Gets a uint32 from this buffer in little-endian order and advances the read\n * pointer by 4.\n *\n * @return the word.\n */\nutil.ByteStringBuffer.prototype.getInt32Le = function() {\n  var rval = (\n    this.data.charCodeAt(this.read) ^\n    this.data.charCodeAt(this.read + 1) << 8 ^\n    this.data.charCodeAt(this.read + 2) << 16 ^\n    this.data.charCodeAt(this.read + 3) << 24);\n  this.read += 4;\n  return rval;\n};\n\n/**\n * Gets an n-bit integer from this buffer in big-endian order and advances the\n * read pointer by ceil(n/8).\n *\n * @param n the number of bits in the integer (8, 16, 24, or 32).\n *\n * @return the integer.\n */\nutil.ByteStringBuffer.prototype.getInt = function(n) {\n  _checkBitsParam(n);\n  var rval = 0;\n  do {\n    // TODO: Use (rval * 0x100) if adding support for 33 to 53 bits.\n    rval = (rval << 8) + this.data.charCodeAt(this.read++);\n    n -= 8;\n  } while(n > 0);\n  return rval;\n};\n\n/**\n * Gets a signed n-bit integer from this buffer in big-endian order, using\n * two's complement, and advances the read pointer by n/8.\n *\n * @param n the number of bits in the integer (8, 16, 24, or 32).\n *\n * @return the integer.\n */\nutil.ByteStringBuffer.prototype.getSignedInt = function(n) {\n  // getInt checks n\n  var x = this.getInt(n);\n  var max = 2 << (n - 2);\n  if(x >= max) {\n    x -= max << 1;\n  }\n  return x;\n};\n\n/**\n * Reads bytes out as a binary encoded string and clears them from the\n * buffer. Note that the resulting string is binary encoded (in node.js this\n * encoding is referred to as `binary`, it is *not* `utf8`).\n *\n * @param count the number of bytes to read, undefined or null for all.\n *\n * @return a binary encoded string of bytes.\n */\nutil.ByteStringBuffer.prototype.getBytes = function(count) {\n  var rval;\n  if(count) {\n    // read count bytes\n    count = Math.min(this.length(), count);\n    rval = this.data.slice(this.read, this.read + count);\n    this.read += count;\n  } else if(count === 0) {\n    rval = '';\n  } else {\n    // read all bytes, optimize to only copy when needed\n    rval = (this.read === 0) ? this.data : this.data.slice(this.read);\n    this.clear();\n  }\n  return rval;\n};\n\n/**\n * Gets a binary encoded string of the bytes from this buffer without\n * modifying the read pointer.\n *\n * @param count the number of bytes to get, omit to get all.\n *\n * @return a string full of binary encoded characters.\n */\nutil.ByteStringBuffer.prototype.bytes = function(count) {\n  return (typeof(count) === 'undefined' ?\n    this.data.slice(this.read) :\n    this.data.slice(this.read, this.read + count));\n};\n\n/**\n * Gets a byte at the given index without modifying the read pointer.\n *\n * @param i the byte index.\n *\n * @return the byte.\n */\nutil.ByteStringBuffer.prototype.at = function(i) {\n  return this.data.charCodeAt(this.read + i);\n};\n\n/**\n * Puts a byte at the given index without modifying the read pointer.\n *\n * @param i the byte index.\n * @param b the byte to put.\n *\n * @return this buffer.\n */\nutil.ByteStringBuffer.prototype.setAt = function(i, b) {\n  this.data = this.data.substr(0, this.read + i) +\n    String.fromCharCode(b) +\n    this.data.substr(this.read + i + 1);\n  return this;\n};\n\n/**\n * Gets the last byte without modifying the read pointer.\n *\n * @return the last byte.\n */\nutil.ByteStringBuffer.prototype.last = function() {\n  return this.data.charCodeAt(this.data.length - 1);\n};\n\n/**\n * Creates a copy of this buffer.\n *\n * @return the copy.\n */\nutil.ByteStringBuffer.prototype.copy = function() {\n  var c = util.createBuffer(this.data);\n  c.read = this.read;\n  return c;\n};\n\n/**\n * Compacts this buffer.\n *\n * @return this buffer.\n */\nutil.ByteStringBuffer.prototype.compact = function() {\n  if(this.read > 0) {\n    this.data = this.data.slice(this.read);\n    this.read = 0;\n  }\n  return this;\n};\n\n/**\n * Clears this buffer.\n *\n * @return this buffer.\n */\nutil.ByteStringBuffer.prototype.clear = function() {\n  this.data = '';\n  this.read = 0;\n  return this;\n};\n\n/**\n * Shortens this buffer by triming bytes off of the end of this buffer.\n *\n * @param count the number of bytes to trim off.\n *\n * @return this buffer.\n */\nutil.ByteStringBuffer.prototype.truncate = function(count) {\n  var len = Math.max(0, this.length() - count);\n  this.data = this.data.substr(this.read, len);\n  this.read = 0;\n  return this;\n};\n\n/**\n * Converts this buffer to a hexadecimal string.\n *\n * @return a hexadecimal string.\n */\nutil.ByteStringBuffer.prototype.toHex = function() {\n  var rval = '';\n  for(var i = this.read; i < this.data.length; ++i) {\n    var b = this.data.charCodeAt(i);\n    if(b < 16) {\n      rval += '0';\n    }\n    rval += b.toString(16);\n  }\n  return rval;\n};\n\n/**\n * Converts this buffer to a UTF-16 string (standard JavaScript string).\n *\n * @return a UTF-16 string.\n */\nutil.ByteStringBuffer.prototype.toString = function() {\n  return util.decodeUtf8(this.bytes());\n};\n\n/** End Buffer w/BinaryString backing */\n\n/** Buffer w/UInt8Array backing */\n\n/**\n * FIXME: Experimental. Do not use yet.\n *\n * Constructor for an ArrayBuffer-backed byte buffer.\n *\n * The buffer may be constructed from a string, an ArrayBuffer, DataView, or a\n * TypedArray.\n *\n * If a string is given, its encoding should be provided as an option,\n * otherwise it will default to 'binary'. A 'binary' string is encoded such\n * that each character is one byte in length and size.\n *\n * If an ArrayBuffer, DataView, or TypedArray is given, it will be used\n * *directly* without any copying. Note that, if a write to the buffer requires\n * more space, the buffer will allocate a new backing ArrayBuffer to\n * accommodate. The starting read and write offsets for the buffer may be\n * given as options.\n *\n * @param [b] the initial bytes for this buffer.\n * @param options the options to use:\n *          [readOffset] the starting read offset to use (default: 0).\n *          [writeOffset] the starting write offset to use (default: the\n *            length of the first parameter).\n *          [growSize] the minimum amount, in bytes, to grow the buffer by to\n *            accommodate writes (default: 1024).\n *          [encoding] the encoding ('binary', 'utf8', 'utf16', 'hex') for the\n *            first parameter, if it is a string (default: 'binary').\n */\nfunction DataBuffer(b, options) {\n  // default options\n  options = options || {};\n\n  // pointers for read from/write to buffer\n  this.read = options.readOffset || 0;\n  this.growSize = options.growSize || 1024;\n\n  var isArrayBuffer = util.isArrayBuffer(b);\n  var isArrayBufferView = util.isArrayBufferView(b);\n  if(isArrayBuffer || isArrayBufferView) {\n    // use ArrayBuffer directly\n    if(isArrayBuffer) {\n      this.data = new DataView(b);\n    } else {\n      // TODO: adjust read/write offset based on the type of view\n      // or specify that this must be done in the options ... that the\n      // offsets are byte-based\n      this.data = new DataView(b.buffer, b.byteOffset, b.byteLength);\n    }\n    this.write = ('writeOffset' in options ?\n      options.writeOffset : this.data.byteLength);\n    return;\n  }\n\n  // initialize to empty array buffer and add any given bytes using putBytes\n  this.data = new DataView(new ArrayBuffer(0));\n  this.write = 0;\n\n  if(b !== null && b !== undefined) {\n    this.putBytes(b);\n  }\n\n  if('writeOffset' in options) {\n    this.write = options.writeOffset;\n  }\n}\nutil.DataBuffer = DataBuffer;\n\n/**\n * Gets the number of bytes in this buffer.\n *\n * @return the number of bytes in this buffer.\n */\nutil.DataBuffer.prototype.length = function() {\n  return this.write - this.read;\n};\n\n/**\n * Gets whether or not this buffer is empty.\n *\n * @return true if this buffer is empty, false if not.\n */\nutil.DataBuffer.prototype.isEmpty = function() {\n  return this.length() <= 0;\n};\n\n/**\n * Ensures this buffer has enough empty space to accommodate the given number\n * of bytes. An optional parameter may be given that indicates a minimum\n * amount to grow the buffer if necessary. If the parameter is not given,\n * the buffer will be grown by some previously-specified default amount\n * or heuristic.\n *\n * @param amount the number of bytes to accommodate.\n * @param [growSize] the minimum amount, in bytes, to grow the buffer by if\n *          necessary.\n */\nutil.DataBuffer.prototype.accommodate = function(amount, growSize) {\n  if(this.length() >= amount) {\n    return this;\n  }\n  growSize = Math.max(growSize || this.growSize, amount);\n\n  // grow buffer\n  var src = new Uint8Array(\n    this.data.buffer, this.data.byteOffset, this.data.byteLength);\n  var dst = new Uint8Array(this.length() + growSize);\n  dst.set(src);\n  this.data = new DataView(dst.buffer);\n\n  return this;\n};\n\n/**\n * Puts a byte in this buffer.\n *\n * @param b the byte to put.\n *\n * @return this buffer.\n */\nutil.DataBuffer.prototype.putByte = function(b) {\n  this.accommodate(1);\n  this.data.setUint8(this.write++, b);\n  return this;\n};\n\n/**\n * Puts a byte in this buffer N times.\n *\n * @param b the byte to put.\n * @param n the number of bytes of value b to put.\n *\n * @return this buffer.\n */\nutil.DataBuffer.prototype.fillWithByte = function(b, n) {\n  this.accommodate(n);\n  for(var i = 0; i < n; ++i) {\n    this.data.setUint8(b);\n  }\n  return this;\n};\n\n/**\n * Puts bytes in this buffer. The bytes may be given as a string, an\n * ArrayBuffer, a DataView, or a TypedArray.\n *\n * @param bytes the bytes to put.\n * @param [encoding] the encoding for the first parameter ('binary', 'utf8',\n *          'utf16', 'hex'), if it is a string (default: 'binary').\n *\n * @return this buffer.\n */\nutil.DataBuffer.prototype.putBytes = function(bytes, encoding) {\n  if(util.isArrayBufferView(bytes)) {\n    var src = new Uint8Array(bytes.buffer, bytes.byteOffset, bytes.byteLength);\n    var len = src.byteLength - src.byteOffset;\n    this.accommodate(len);\n    var dst = new Uint8Array(this.data.buffer, this.write);\n    dst.set(src);\n    this.write += len;\n    return this;\n  }\n\n  if(util.isArrayBuffer(bytes)) {\n    var src = new Uint8Array(bytes);\n    this.accommodate(src.byteLength);\n    var dst = new Uint8Array(this.data.buffer);\n    dst.set(src, this.write);\n    this.write += src.byteLength;\n    return this;\n  }\n\n  // bytes is a util.DataBuffer or equivalent\n  if(bytes instanceof util.DataBuffer ||\n    (typeof bytes === 'object' &&\n    typeof bytes.read === 'number' && typeof bytes.write === 'number' &&\n    util.isArrayBufferView(bytes.data))) {\n    var src = new Uint8Array(bytes.data.byteLength, bytes.read, bytes.length());\n    this.accommodate(src.byteLength);\n    var dst = new Uint8Array(bytes.data.byteLength, this.write);\n    dst.set(src);\n    this.write += src.byteLength;\n    return this;\n  }\n\n  if(bytes instanceof util.ByteStringBuffer) {\n    // copy binary string and process as the same as a string parameter below\n    bytes = bytes.data;\n    encoding = 'binary';\n  }\n\n  // string conversion\n  encoding = encoding || 'binary';\n  if(typeof bytes === 'string') {\n    var view;\n\n    // decode from string\n    if(encoding === 'hex') {\n      this.accommodate(Math.ceil(bytes.length / 2));\n      view = new Uint8Array(this.data.buffer, this.write);\n      this.write += util.binary.hex.decode(bytes, view, this.write);\n      return this;\n    }\n    if(encoding === 'base64') {\n      this.accommodate(Math.ceil(bytes.length / 4) * 3);\n      view = new Uint8Array(this.data.buffer, this.write);\n      this.write += util.binary.base64.decode(bytes, view, this.write);\n      return this;\n    }\n\n    // encode text as UTF-8 bytes\n    if(encoding === 'utf8') {\n      // encode as UTF-8 then decode string as raw binary\n      bytes = util.encodeUtf8(bytes);\n      encoding = 'binary';\n    }\n\n    // decode string as raw binary\n    if(encoding === 'binary' || encoding === 'raw') {\n      // one byte per character\n      this.accommodate(bytes.length);\n      view = new Uint8Array(this.data.buffer, this.write);\n      this.write += util.binary.raw.decode(view);\n      return this;\n    }\n\n    // encode text as UTF-16 bytes\n    if(encoding === 'utf16') {\n      // two bytes per character\n      this.accommodate(bytes.length * 2);\n      view = new Uint16Array(this.data.buffer, this.write);\n      this.write += util.text.utf16.encode(view);\n      return this;\n    }\n\n    throw new Error('Invalid encoding: ' + encoding);\n  }\n\n  throw Error('Invalid parameter: ' + bytes);\n};\n\n/**\n * Puts the given buffer into this buffer.\n *\n * @param buffer the buffer to put into this one.\n *\n * @return this buffer.\n */\nutil.DataBuffer.prototype.putBuffer = function(buffer) {\n  this.putBytes(buffer);\n  buffer.clear();\n  return this;\n};\n\n/**\n * Puts a string into this buffer.\n *\n * @param str the string to put.\n * @param [encoding] the encoding for the string (default: 'utf16').\n *\n * @return this buffer.\n */\nutil.DataBuffer.prototype.putString = function(str) {\n  return this.putBytes(str, 'utf16');\n};\n\n/**\n * Puts a 16-bit integer in this buffer in big-endian order.\n *\n * @param i the 16-bit integer.\n *\n * @return this buffer.\n */\nutil.DataBuffer.prototype.putInt16 = function(i) {\n  this.accommodate(2);\n  this.data.setInt16(this.write, i);\n  this.write += 2;\n  return this;\n};\n\n/**\n * Puts a 24-bit integer in this buffer in big-endian order.\n *\n * @param i the 24-bit integer.\n *\n * @return this buffer.\n */\nutil.DataBuffer.prototype.putInt24 = function(i) {\n  this.accommodate(3);\n  this.data.setInt16(this.write, i >> 8 & 0xFFFF);\n  this.data.setInt8(this.write, i >> 16 & 0xFF);\n  this.write += 3;\n  return this;\n};\n\n/**\n * Puts a 32-bit integer in this buffer in big-endian order.\n *\n * @param i the 32-bit integer.\n *\n * @return this buffer.\n */\nutil.DataBuffer.prototype.putInt32 = function(i) {\n  this.accommodate(4);\n  this.data.setInt32(this.write, i);\n  this.write += 4;\n  return this;\n};\n\n/**\n * Puts a 16-bit integer in this buffer in little-endian order.\n *\n * @param i the 16-bit integer.\n *\n * @return this buffer.\n */\nutil.DataBuffer.prototype.putInt16Le = function(i) {\n  this.accommodate(2);\n  this.data.setInt16(this.write, i, true);\n  this.write += 2;\n  return this;\n};\n\n/**\n * Puts a 24-bit integer in this buffer in little-endian order.\n *\n * @param i the 24-bit integer.\n *\n * @return this buffer.\n */\nutil.DataBuffer.prototype.putInt24Le = function(i) {\n  this.accommodate(3);\n  this.data.setInt8(this.write, i >> 16 & 0xFF);\n  this.data.setInt16(this.write, i >> 8 & 0xFFFF, true);\n  this.write += 3;\n  return this;\n};\n\n/**\n * Puts a 32-bit integer in this buffer in little-endian order.\n *\n * @param i the 32-bit integer.\n *\n * @return this buffer.\n */\nutil.DataBuffer.prototype.putInt32Le = function(i) {\n  this.accommodate(4);\n  this.data.setInt32(this.write, i, true);\n  this.write += 4;\n  return this;\n};\n\n/**\n * Puts an n-bit integer in this buffer in big-endian order.\n *\n * @param i the n-bit integer.\n * @param n the number of bits in the integer (8, 16, 24, or 32).\n *\n * @return this buffer.\n */\nutil.DataBuffer.prototype.putInt = function(i, n) {\n  _checkBitsParam(n);\n  this.accommodate(n / 8);\n  do {\n    n -= 8;\n    this.data.setInt8(this.write++, (i >> n) & 0xFF);\n  } while(n > 0);\n  return this;\n};\n\n/**\n * Puts a signed n-bit integer in this buffer in big-endian order. Two's\n * complement representation is used.\n *\n * @param i the n-bit integer.\n * @param n the number of bits in the integer.\n *\n * @return this buffer.\n */\nutil.DataBuffer.prototype.putSignedInt = function(i, n) {\n  _checkBitsParam(n);\n  this.accommodate(n / 8);\n  if(i < 0) {\n    i += 2 << (n - 1);\n  }\n  return this.putInt(i, n);\n};\n\n/**\n * Gets a byte from this buffer and advances the read pointer by 1.\n *\n * @return the byte.\n */\nutil.DataBuffer.prototype.getByte = function() {\n  return this.data.getInt8(this.read++);\n};\n\n/**\n * Gets a uint16 from this buffer in big-endian order and advances the read\n * pointer by 2.\n *\n * @return the uint16.\n */\nutil.DataBuffer.prototype.getInt16 = function() {\n  var rval = this.data.getInt16(this.read);\n  this.read += 2;\n  return rval;\n};\n\n/**\n * Gets a uint24 from this buffer in big-endian order and advances the read\n * pointer by 3.\n *\n * @return the uint24.\n */\nutil.DataBuffer.prototype.getInt24 = function() {\n  var rval = (\n    this.data.getInt16(this.read) << 8 ^\n    this.data.getInt8(this.read + 2));\n  this.read += 3;\n  return rval;\n};\n\n/**\n * Gets a uint32 from this buffer in big-endian order and advances the read\n * pointer by 4.\n *\n * @return the word.\n */\nutil.DataBuffer.prototype.getInt32 = function() {\n  var rval = this.data.getInt32(this.read);\n  this.read += 4;\n  return rval;\n};\n\n/**\n * Gets a uint16 from this buffer in little-endian order and advances the read\n * pointer by 2.\n *\n * @return the uint16.\n */\nutil.DataBuffer.prototype.getInt16Le = function() {\n  var rval = this.data.getInt16(this.read, true);\n  this.read += 2;\n  return rval;\n};\n\n/**\n * Gets a uint24 from this buffer in little-endian order and advances the read\n * pointer by 3.\n *\n * @return the uint24.\n */\nutil.DataBuffer.prototype.getInt24Le = function() {\n  var rval = (\n    this.data.getInt8(this.read) ^\n    this.data.getInt16(this.read + 1, true) << 8);\n  this.read += 3;\n  return rval;\n};\n\n/**\n * Gets a uint32 from this buffer in little-endian order and advances the read\n * pointer by 4.\n *\n * @return the word.\n */\nutil.DataBuffer.prototype.getInt32Le = function() {\n  var rval = this.data.getInt32(this.read, true);\n  this.read += 4;\n  return rval;\n};\n\n/**\n * Gets an n-bit integer from this buffer in big-endian order and advances the\n * read pointer by n/8.\n *\n * @param n the number of bits in the integer (8, 16, 24, or 32).\n *\n * @return the integer.\n */\nutil.DataBuffer.prototype.getInt = function(n) {\n  _checkBitsParam(n);\n  var rval = 0;\n  do {\n    // TODO: Use (rval * 0x100) if adding support for 33 to 53 bits.\n    rval = (rval << 8) + this.data.getInt8(this.read++);\n    n -= 8;\n  } while(n > 0);\n  return rval;\n};\n\n/**\n * Gets a signed n-bit integer from this buffer in big-endian order, using\n * two's complement, and advances the read pointer by n/8.\n *\n * @param n the number of bits in the integer (8, 16, 24, or 32).\n *\n * @return the integer.\n */\nutil.DataBuffer.prototype.getSignedInt = function(n) {\n  // getInt checks n\n  var x = this.getInt(n);\n  var max = 2 << (n - 2);\n  if(x >= max) {\n    x -= max << 1;\n  }\n  return x;\n};\n\n/**\n * Reads bytes out as a binary encoded string and clears them from the\n * buffer.\n *\n * @param count the number of bytes to read, undefined or null for all.\n *\n * @return a binary encoded string of bytes.\n */\nutil.DataBuffer.prototype.getBytes = function(count) {\n  // TODO: deprecate this method, it is poorly named and\n  // this.toString('binary') replaces it\n  // add a toTypedArray()/toArrayBuffer() function\n  var rval;\n  if(count) {\n    // read count bytes\n    count = Math.min(this.length(), count);\n    rval = this.data.slice(this.read, this.read + count);\n    this.read += count;\n  } else if(count === 0) {\n    rval = '';\n  } else {\n    // read all bytes, optimize to only copy when needed\n    rval = (this.read === 0) ? this.data : this.data.slice(this.read);\n    this.clear();\n  }\n  return rval;\n};\n\n/**\n * Gets a binary encoded string of the bytes from this buffer without\n * modifying the read pointer.\n *\n * @param count the number of bytes to get, omit to get all.\n *\n * @return a string full of binary encoded characters.\n */\nutil.DataBuffer.prototype.bytes = function(count) {\n  // TODO: deprecate this method, it is poorly named, add \"getString()\"\n  return (typeof(count) === 'undefined' ?\n    this.data.slice(this.read) :\n    this.data.slice(this.read, this.read + count));\n};\n\n/**\n * Gets a byte at the given index without modifying the read pointer.\n *\n * @param i the byte index.\n *\n * @return the byte.\n */\nutil.DataBuffer.prototype.at = function(i) {\n  return this.data.getUint8(this.read + i);\n};\n\n/**\n * Puts a byte at the given index without modifying the read pointer.\n *\n * @param i the byte index.\n * @param b the byte to put.\n *\n * @return this buffer.\n */\nutil.DataBuffer.prototype.setAt = function(i, b) {\n  this.data.setUint8(i, b);\n  return this;\n};\n\n/**\n * Gets the last byte without modifying the read pointer.\n *\n * @return the last byte.\n */\nutil.DataBuffer.prototype.last = function() {\n  return this.data.getUint8(this.write - 1);\n};\n\n/**\n * Creates a copy of this buffer.\n *\n * @return the copy.\n */\nutil.DataBuffer.prototype.copy = function() {\n  return new util.DataBuffer(this);\n};\n\n/**\n * Compacts this buffer.\n *\n * @return this buffer.\n */\nutil.DataBuffer.prototype.compact = function() {\n  if(this.read > 0) {\n    var src = new Uint8Array(this.data.buffer, this.read);\n    var dst = new Uint8Array(src.byteLength);\n    dst.set(src);\n    this.data = new DataView(dst);\n    this.write -= this.read;\n    this.read = 0;\n  }\n  return this;\n};\n\n/**\n * Clears this buffer.\n *\n * @return this buffer.\n */\nutil.DataBuffer.prototype.clear = function() {\n  this.data = new DataView(new ArrayBuffer(0));\n  this.read = this.write = 0;\n  return this;\n};\n\n/**\n * Shortens this buffer by triming bytes off of the end of this buffer.\n *\n * @param count the number of bytes to trim off.\n *\n * @return this buffer.\n */\nutil.DataBuffer.prototype.truncate = function(count) {\n  this.write = Math.max(0, this.length() - count);\n  this.read = Math.min(this.read, this.write);\n  return this;\n};\n\n/**\n * Converts this buffer to a hexadecimal string.\n *\n * @return a hexadecimal string.\n */\nutil.DataBuffer.prototype.toHex = function() {\n  var rval = '';\n  for(var i = this.read; i < this.data.byteLength; ++i) {\n    var b = this.data.getUint8(i);\n    if(b < 16) {\n      rval += '0';\n    }\n    rval += b.toString(16);\n  }\n  return rval;\n};\n\n/**\n * Converts this buffer to a string, using the given encoding. If no\n * encoding is given, 'utf8' (UTF-8) is used.\n *\n * @param [encoding] the encoding to use: 'binary', 'utf8', 'utf16', 'hex',\n *          'base64' (default: 'utf8').\n *\n * @return a string representation of the bytes in this buffer.\n */\nutil.DataBuffer.prototype.toString = function(encoding) {\n  var view = new Uint8Array(this.data, this.read, this.length());\n  encoding = encoding || 'utf8';\n\n  // encode to string\n  if(encoding === 'binary' || encoding === 'raw') {\n    return util.binary.raw.encode(view);\n  }\n  if(encoding === 'hex') {\n    return util.binary.hex.encode(view);\n  }\n  if(encoding === 'base64') {\n    return util.binary.base64.encode(view);\n  }\n\n  // decode to text\n  if(encoding === 'utf8') {\n    return util.text.utf8.decode(view);\n  }\n  if(encoding === 'utf16') {\n    return util.text.utf16.decode(view);\n  }\n\n  throw new Error('Invalid encoding: ' + encoding);\n};\n\n/** End Buffer w/UInt8Array backing */\n\n/**\n * Creates a buffer that stores bytes. A value may be given to populate the\n * buffer with data. This value can either be string of encoded bytes or a\n * regular string of characters. When passing a string of binary encoded\n * bytes, the encoding `raw` should be given. This is also the default. When\n * passing a string of characters, the encoding `utf8` should be given.\n *\n * @param [input] a string with encoded bytes to store in the buffer.\n * @param [encoding] (default: 'raw', other: 'utf8').\n */\nutil.createBuffer = function(input, encoding) {\n  // TODO: deprecate, use new ByteBuffer() instead\n  encoding = encoding || 'raw';\n  if(input !== undefined && encoding === 'utf8') {\n    input = util.encodeUtf8(input);\n  }\n  return new util.ByteBuffer(input);\n};\n\n/**\n * Fills a string with a particular value. If you want the string to be a byte\n * string, pass in String.fromCharCode(theByte).\n *\n * @param c the character to fill the string with, use String.fromCharCode\n *          to fill the string with a byte value.\n * @param n the number of characters of value c to fill with.\n *\n * @return the filled string.\n */\nutil.fillString = function(c, n) {\n  var s = '';\n  while(n > 0) {\n    if(n & 1) {\n      s += c;\n    }\n    n >>>= 1;\n    if(n > 0) {\n      c += c;\n    }\n  }\n  return s;\n};\n\n/**\n * Performs a per byte XOR between two byte strings and returns the result as a\n * string of bytes.\n *\n * @param s1 first string of bytes.\n * @param s2 second string of bytes.\n * @param n the number of bytes to XOR.\n *\n * @return the XOR'd result.\n */\nutil.xorBytes = function(s1, s2, n) {\n  var s3 = '';\n  var b = '';\n  var t = '';\n  var i = 0;\n  var c = 0;\n  for(; n > 0; --n, ++i) {\n    b = s1.charCodeAt(i) ^ s2.charCodeAt(i);\n    if(c >= 10) {\n      s3 += t;\n      t = '';\n      c = 0;\n    }\n    t += String.fromCharCode(b);\n    ++c;\n  }\n  s3 += t;\n  return s3;\n};\n\n/**\n * Converts a hex string into a 'binary' encoded string of bytes.\n *\n * @param hex the hexadecimal string to convert.\n *\n * @return the binary-encoded string of bytes.\n */\nutil.hexToBytes = function(hex) {\n  // TODO: deprecate: \"Deprecated. Use util.binary.hex.decode instead.\"\n  var rval = '';\n  var i = 0;\n  if(hex.length & 1 == 1) {\n    // odd number of characters, convert first character alone\n    i = 1;\n    rval += String.fromCharCode(parseInt(hex[0], 16));\n  }\n  // convert 2 characters (1 byte) at a time\n  for(; i < hex.length; i += 2) {\n    rval += String.fromCharCode(parseInt(hex.substr(i, 2), 16));\n  }\n  return rval;\n};\n\n/**\n * Converts a 'binary' encoded string of bytes to hex.\n *\n * @param bytes the byte string to convert.\n *\n * @return the string of hexadecimal characters.\n */\nutil.bytesToHex = function(bytes) {\n  // TODO: deprecate: \"Deprecated. Use util.binary.hex.encode instead.\"\n  return util.createBuffer(bytes).toHex();\n};\n\n/**\n * Converts an 32-bit integer to 4-big-endian byte string.\n *\n * @param i the integer.\n *\n * @return the byte string.\n */\nutil.int32ToBytes = function(i) {\n  return (\n    String.fromCharCode(i >> 24 & 0xFF) +\n    String.fromCharCode(i >> 16 & 0xFF) +\n    String.fromCharCode(i >> 8 & 0xFF) +\n    String.fromCharCode(i & 0xFF));\n};\n\n// base64 characters, reverse mapping\nvar _base64 =\n  'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=';\nvar _base64Idx = [\n/*43 -43 = 0*/\n/*'+',  1,  2,  3,'/' */\n   62, -1, -1, -1, 63,\n\n/*'0','1','2','3','4','5','6','7','8','9' */\n   52, 53, 54, 55, 56, 57, 58, 59, 60, 61,\n\n/*15, 16, 17,'=', 19, 20, 21 */\n  -1, -1, -1, 64, -1, -1, -1,\n\n/*65 - 43 = 22*/\n/*'A','B','C','D','E','F','G','H','I','J','K','L','M', */\n   0,  1,  2,  3,  4,  5,  6,  7,  8,  9, 10, 11, 12,\n\n/*'N','O','P','Q','R','S','T','U','V','W','X','Y','Z' */\n   13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25,\n\n/*91 - 43 = 48 */\n/*48, 49, 50, 51, 52, 53 */\n  -1, -1, -1, -1, -1, -1,\n\n/*97 - 43 = 54*/\n/*'a','b','c','d','e','f','g','h','i','j','k','l','m' */\n   26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38,\n\n/*'n','o','p','q','r','s','t','u','v','w','x','y','z' */\n   39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51\n];\n\n// base58 characters (Bitcoin alphabet)\n