Code coverage report for src/index.js

Statements: 93% (93 / 100)      Branches: 81.97% (50 / 61)      Functions: 100% (13 / 13)      Lines: 93% (93 / 100)      Ignored: none     

All files » src/ » index.js
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'use strict'
 
var debug = require('debug')('httpsnippet')
var es = require('event-stream')
var FormData = require('form-data')
var qs = require('querystring')
var reducer = require('./reducer')
var targets = require('./targets')
var url = require('url')
var util = require('util')
var validate = require('har-validator')
 
// constructor
var HTTPSnippet = function (req, lang) {
  this.source = util._extend({}, req)
 
  // add optional properties to make validation successful
  this.source.httpVersion = this.source.httpVersion || 'HTTP/1.1'
  this.source.queryString = this.source.queryString || []
  this.source.headers = this.source.headers || []
  this.source.cookies = this.source.cookies || []
  this.source.postData = this.source.postData || {}
  this.source.postData.mimeType = this.source.postData.mimeType || 'application/octet-stream'
 
  this.source.bodySize = 0
  this.source.headersSize = 0
  this.source.postData.size = 0
 
  validate.request(this.source, function (err, valid) {
    Iif (!valid) {
      throw err
    }
 
    // construct query string object
    this.source.queryObj = {}
    this.source.headersObj = {}
    this.source.allHeaders = {}
    this.source.postData.jsonObj = false
    this.source.postData.paramsObj = false
 
    // construct query objects
    if (this.source.queryString && this.source.queryString.length) {
      debug('queryString found, constructing queryString pair map')
 
      this.source.queryObj = this.source.queryString.reduce(reducer, {})
    }
 
    // construct headers objects
    if (this.source.headers && this.source.headers.length) {
      // loweCase header keys
      this.source.headersObj = this.source.headers.reduceRight(function (headers, header) {
        headers[header.name.toLowerCase()] = header.value
        return headers
      }, {})
    }
 
    // construct Cookie header
    var cookies = this.source.cookies.map(function (cookie) {
      return encodeURIComponent(cookie.name) + '=' + encodeURIComponent(cookie.value)
    })
 
    if (cookies.length) {
      this.source.allHeaders.cookie = cookies.join('; ')
    }
 
    switch (this.source.postData.mimeType) {
      case 'multipart/mixed':
      case 'multipart/related':
      case 'multipart/form-data':
      case 'multipart/alternative':
        // reset values
        this.source.postData.text = ''
        this.source.postData.mimeType = 'multipart/form-data'
 
        var form = new FormData()
 
        // easter egg
        form._boundary = '---011000010111000001101001'
 
        this.source.postData.params.map(function (param) {
          form.append(param.name, param.value || '', {
            filename: param.fileName || null,
            contentType: param.contentType || null
          })
        })
 
        form.pipe(es.map(function (data, cb) {
          this.source.postData.text += data
        }.bind(this)))
 
        this.source.headersObj['content-type'] = 'multipart/form-data; boundary=' + form.getBoundary()
        break
 
      case 'application/x-www-form-urlencoded':
        Iif (!this.source.postData.params) {
          this.source.postData.text = ''
        } else {
          this.source.postData.paramsObj = this.source.postData.params.reduce(reducer, {})
 
          // always overwrite
          this.source.postData.text = qs.stringify(this.source.postData.paramsObj)
        }
        break
 
      case 'text/json':
      case 'text/x-json':
      case 'application/json':
      case 'application/x-json':
        this.source.postData.mimeType = 'application/json'
 
        Eif (this.source.postData.text) {
          try {
            this.source.postData.jsonObj = JSON.parse(this.source.postData.text)
          } catch (e) {
            debug(e)
 
            // force back to text/plain
            // if headers have proper content-type value, then this should also work
            this.source.postData.mimeType = 'text/plain'
          }
        }
        break
    }
 
    // create allHeaders object
    this.source.allHeaders = util._extend(this.source.allHeaders, this.source.headersObj)
 
    // deconstruct the uri
    this.source.uriObj = url.parse(this.source.url, true, true)
 
    // merge all possible queryString values
    this.source.queryObj = util._extend(this.source.queryObj, this.source.uriObj.query)
 
    // reset uriObj values for a clean url
    this.source.uriObj.query = null
    this.source.uriObj.search = null
    this.source.uriObj.path = this.source.uriObj.pathname
 
    // keep the base url clean of queryString
    this.source.url = url.format(this.source.uriObj)
 
    // update the uri object
    this.source.uriObj.query = this.source.queryObj
    this.source.uriObj.search = qs.stringify(this.source.queryObj)
    this.source.uriObj.path = this.source.uriObj.pathname + '?' + this.source.uriObj.search
 
    // construct a full url
    this.source.fullUrl = url.format(this.source.uriObj)
  }.bind(this))
}
 
HTTPSnippet.prototype.convert = function (target, client, opts) {
  if (!opts && client) {
    opts = client
  }
 
  var func = this._matchTarget(target, client)
 
  Eif (func) {
    return func.call(this, this.source, opts)
  }
 
  return false
}
 
HTTPSnippet.prototype._matchTarget = function (target, client) {
  // does it exist?
  Iif (!targets.hasOwnProperty(target)) {
    return false
  }
 
  if (typeof targets[target] === 'function') {
    return targets[target]
  }
 
  // shorthand
  Eif (typeof client === 'string' && typeof targets[target][client] === 'function') {
    return targets[target][client]
  }
 
  // default target
  return targets[target][targets[target].info.default]
}
 
// exports
module.exports = HTTPSnippet
 
module.exports.availableTargets = function () {
  return Object.keys(targets).map(function (key) {
    var target = util._extend({}, targets[key].info)
    var clients = Object.keys(targets[key])
 
      .filter(function (prop) {
        return !~['info', 'index'].indexOf(prop)
      })
 
      .map(function (client) {
        return targets[key][client].info
      })
 
    if (clients.length) {
      target.clients = clients
    }
 
    return target
  })
}
 
module.exports.extname = function (target) {
  return targets[target] ? targets[target].info.extname : ''
}