Edit D:\xinhaisoft\crisis_new\api\node_modules\statuses\index.js

/*!
 * statuses
 * Copyright(c) 2014 Jonathan Ong
 * Copyright(c) 2016 Douglas Christopher Wilson
 * MIT Licensed
 */

'use strict'

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

var codes = require('./codes.json')

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

module.exports = status

// status code to message map
status.STATUS_CODES = codes

// array of status codes
status.codes = populateStatusesMap(status, codes)

// status codes for redirects
status.redirect = {
  300: true,
  301: true,
  302: true,
  303: true,
  305: true,
  307: true,
  308: true
}

// status codes for empty bodies
status.empty = {
  204: true,
  205: true,
  304: true
}

// status codes for when you should retry the request
status.retry = {
  502: true,
  503: true,
  504: true
}

/**
 * Populate the statuses map for given codes.
 * @private
 */

function populateStatusesMap (statuses, codes) {
  var arr = []

Object.keys(codes).forEach(function forEachCode (code) {
    var message = codes[code]
    var status = Number(code)

// Populate properties
    statuses[status] = message
    statuses[message] = status
    statuses[message.toLowerCase()] = status

// Add to array
    arr.push(status)
  })

return arr
}

/**
 * Get the status code.
 *
 * Given a number, this will throw if it is not a known status
 * code, otherwise the code will be returned. Given a string,
 * the string will be parsed for a number and return the code
 * if valid, otherwise will lookup the code assuming this is
 * the status message.
 *
 * @param {string|number} code
 * @returns {number}
 * @public
 */

function status (code) {
  if (typeof code === 'number') {
    if (!status[code]) throw new Error('invalid status code: ' + code)
    return code
  }

if (typeof code !== 'string') {
    throw new TypeError('code must be a number or string')
  }

// '403'
  var n = parseInt(code, 10)
  if (!isNaN(n)) {
    if (!status[n]) throw new Error('invalid status code: ' + n)
    return n
  }

n = status[code.toLowerCase()]
  if (!n) throw new Error('invalid status message: "' + code + '"')
  return n
}

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