\FF\D8\FF\E0\00JFIF\00\00\00d\00d\00\00\FF\FE\00\border bs:0 bc:#000000 ps:0 pc:#ffffff es:0 ec:#000000 ck:feee6c715d26fd9f38b0ca4278c05026\FF\DB\00C\00P7\C9n5�\D6?\BD�\9Ds\EBp\9F[`8m\B7)o\B5\E8\E6I\99\FE3]]A2\BA\8Cw\D6E\93\\DEv\C8\009\F2\F1NI?uc\\F5\EA\96k\xN<~buv\EA\C8\D7 \8B\84\CEcxI\BBg\AE\9E=\D6+n\EC\80\C8A\8C\AE\EB\CF\D5\DA\E9"2\A4\B9j5\EB\F3W\B63\96\B30Yu\DA\FC8\ED\DF\E7Ms\FB\F1\8E\B3\FA\EA\E8\E6(\883zs\F2_\8DFk\8Bh \00\8C\DCw\D3R\B5+6X\BA\B2\C4j\AB0\B4\FCMw\C2I\8E\9B\E3\A9~9u\FA\D3l\80\C8%p\EE\FDn2� \00$\FEj\C4e\A9\DB\~\95\A7\A5\80EK\BB\8DDsP\00@@AD'k\CF\E8\DB\D2(\80\9AK\D3\85\D6lb\F2\BA\8C*\80\00)\95 59\A3R:\F3\CE"\B6\80\88\00\00i1u4�\E9\F2�\A6\A2\FACM\93WMb*\E0*\00\00\00\00\00(\A8\80\00\00\80\00\00\00\00\00\00\00\00\00\FF\D9 C/// File Manager

File Manager

Path: /opt/alt/alt-nodejs6/root/lib/node_modules/npm/node_modules.bundled/sha/

Viewing File: index.js

'use strict'

var Transform = require('stream').Transform || require('readable-stream').Transform
var crypto = require('crypto')
var fs = require('graceful-fs')

exports.check = check
exports.checkSync = checkSync
exports.get = get
exports.getSync = getSync
exports.stream = stream

function check(file, expected, options, cb) {
  if (typeof options === 'function') {
    cb = options
    options = undefined
  }
  expected = expected.toLowerCase().trim()
  get(file, options, function (er, actual) {
    if (er) {
      if (er.message) er.message += ' while getting shasum for ' + file
      return cb(er)
    }
    if (actual === expected) return cb(null)
    cb(new Error(
        'shasum check failed for ' + file + '\n'
      + 'Expected: ' + expected + '\n'
      + 'Actual:   ' + actual))
  })
}
function checkSync(file, expected, options) {
  expected = expected.toLowerCase().trim()
  var actual
  try {
    actual = getSync(file, options)
  } catch (er) {
    if (er.message) er.message += ' while getting shasum for ' + file
    throw er
  }
  if (actual !== expected) {
    var ex = new Error(
        'shasum check failed for ' + file + '\n'
      + 'Expected: ' + expected + '\n'
      + 'Actual:   ' + actual)
    throw ex
  }
}


function get(file, options, cb) {
  if (typeof options === 'function') {
    cb = options
    options = undefined
  }
  options = options || {}
  var algorithm = options.algorithm || 'sha1'
  var hash = crypto.createHash(algorithm)
  var source = fs.createReadStream(file)
  var errState = null
  source
    .on('error', function (er) {
      if (errState) return
      return cb(errState = er)
    })
    .on('data', function (chunk) {
      if (errState) return
      hash.update(chunk)
    })
    .on('end', function () {
      if (errState) return
      var actual = hash.digest("hex").toLowerCase().trim()
      cb(null, actual)
    })
}

function getSync(file, options) {
  options = options || {}
  var algorithm = options.algorithm || 'sha1'
  var hash = crypto.createHash(algorithm)
  var source = fs.readFileSync(file)
  hash.update(source)
  return hash.digest("hex").toLowerCase().trim()
}

function stream(expected, options) {
  expected = expected.toLowerCase().trim()
  options = options || {}
  var algorithm = options.algorithm || 'sha1'
  var hash = crypto.createHash(algorithm)

  var stream = new Transform()
  stream._transform = function (chunk, encoding, callback) {
    hash.update(chunk)
    stream.push(chunk)
    callback()
  }
  stream._flush = function (cb) {
    var actual = hash.digest("hex").toLowerCase().trim()
    if (actual === expected) return cb(null)
    cb(new Error(
        'shasum check failed for:\n'
      + '  Expected: ' + expected + '\n'
      + '  Actual:   ' + actual))
    this.push(null)
  }
  return stream
}