FM / random-bytes

/home2/dakshskx/test.dakshadesign.com/node_modules/random-bytes/

/home2/dakshskx/test.dakshadesign.com/node_modules/random-bytes

Name	Size	Mode	Actions
HISTORY.md	59	0644	edit dl rm
index.js	1994	0644	edit dl rm
LICENSE	1118	0644	edit dl rm
package.json	939	0644	edit dl rm
README.md	2125	0644	edit dl rm

Edit: /home2/dakshskx/test.dakshadesign.com/node_modules/random-bytes/index.js (1994B)

/*!
 * random-bytes
 * Copyright(c) 2016 Douglas Christopher Wilson
 * MIT Licensed
 */

'use strict'

/**
 * Module dependencies.
 * @private
 */

var crypto = require('crypto')

/**
 * Module variables.
 * @private
 */

var generateAttempts = crypto.randomBytes === crypto.pseudoRandomBytes ? 1 : 3

/**
 * Module exports.
 * @public
 */

module.exports = randomBytes
module.exports.sync = randomBytesSync

/**
 * Generates strong pseudo-random bytes.
 *
 * @param {number} size
 * @param {function} [callback]
 * @return {Promise}
 * @public
 */

function randomBytes(size, callback) {
  // validate callback is a function, if provided
  if (callback !== undefined && typeof callback !== 'function') {
    throw new TypeError('argument callback must be a function')
  }

// require the callback without promises
  if (!callback && !global.Promise) {
    throw new TypeError('argument callback is required')
  }

if (callback) {
    // classic callback style
    return generateRandomBytes(size, generateAttempts, callback)
  }

return new Promise(function executor(resolve, reject) {
    generateRandomBytes(size, generateAttempts, function onRandomBytes(err, str) {
      if (err) return reject(err)
      resolve(str)
    })
  })
}

/**
 * Generates strong pseudo-random bytes sync.
 *
 * @param {number} size
 * @return {Buffer}
 * @public
 */

function randomBytesSync(size) {
  var err = null

for (var i = 0; i < generateAttempts; i++) {
    try {
      return crypto.randomBytes(size)
    } catch (e) {
      err = e
    }
  }

throw err
}

/**
 * Generates strong pseudo-random bytes.
 *
 * @param {number} size
 * @param {number} attempts
 * @param {function} callback
 * @private
 */

function generateRandomBytes(size, attempts, callback) {
  crypto.randomBytes(size, function onRandomBytes(err, buf) {
    if (!err) return callback(null, buf)
    if (!--attempts) return callback(err)
    setTimeout(generateRandomBytes.bind(null, size, attempts, callback), 10)
  })
}

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