transparent_redirect_gateway.coffee

{Digest} = require('./digest')
{Util} = require('./util')
querystring = require('../../vendor/querystring.node.js.511d6a2/querystring')
dateFormat = require('dateformat')
{CreditCardGateway} = require('./credit_card_gateway')
{CustomerGateway} = require('./customer_gateway')
{TransactionGateway} = require('./transaction_gateway')
exceptions = require('./exceptions')

class TransparentRedirectGateway
  KIND =
    CREATE_CUSTOMER: 'create_customer'
    UPDATE_CUSTOMER: 'update_customer'
    CREATE_CREDIT_CARD: 'create_payment_method'
    UPDATE_CREDIT_CARD: 'update_payment_method'
    CREATE_TRANSACTION: 'create_transaction'

  constructor: (@gateway) ->
    uriScheme = if @gateway.config.environment.ssl then 'https://' else 'http://'
    fullHost  = if @gateway.config.environment is braintree.Environment.Development
      "#{@gateway.config.environment.server}:#{@gateway.config.environment.port}"
    else
      @gateway.config.environment.server
    @url = "#{uriScheme}#{fullHost}#{@gateway.config.baseMerchantPath}/transparent_redirect_requests"

  generateTrData: (inputData) ->
    data = Util.convertObjectKeysToUnderscores(inputData)
    data.api_version = @gateway.config.apiVersion
    data.time = dateFormat(new Date(), 'yyyymmddHHMMss', true)
    data.public_key = @gateway.config.publicKey
    dataSegment = querystring.stringify(data)
    trDataHash = Digest.hexdigest(@gateway.config.privateKey, dataSegment)
    trDataHash + "|" + dataSegment

  createCreditCardData: (data) ->
    data.kind = KIND.CREATE_CREDIT_CARD
    @generateTrData(data)

  updateCreditCardData: (data) ->
    data.kind = KIND.UPDATE_CREDIT_CARD
    @generateTrData(data)

  createCustomerData: (data) ->
    data.kind = KIND.CREATE_CUSTOMER
    @generateTrData(data)

  updateCustomerData: (data) ->
    data.kind = KIND.UPDATE_CUSTOMER
    @generateTrData(data)

  transactionData: (data) ->
    data.kind = KIND.CREATE_TRANSACTION
    @generateTrData(data)

  validateQueryString: (queryString) ->
    matches = queryString.match(/^(.+)&hash=(.+?)$/)
    (Digest.hexdigest(@gateway.config.privateKey, matches[1]) is matches[2])

  confirm: (queryString, callback) ->
    statusMatch = queryString.match(/http_status=(\d+)/)
    if statusMatch && statusMatch[1]
      error = @gateway.http.checkHttpStatus(statusMatch[1])
      return callback(error, null) if error
    if !@validateQueryString(queryString)
      return callback(exceptions.InvalidTransparentRedirectHashError(), null)
    params = querystring.parse(queryString)
    confirmCallback = null

    switch params.kind
      when KIND.CREATE_CUSTOMER, KIND.UPDATE_CUSTOMER
        confirmCallback = new CustomerGateway(@gateway).responseHandler(callback)
      when KIND.CREATE_CREDIT_CARD, KIND.UPDATE_CREDIT_CARD
        confirmCallback = new CreditCardGateway(@gateway).responseHandler(callback)
      when KIND.CREATE_TRANSACTION
        confirmCallback = new TransactionGateway(@gateway).responseHandler(callback)
    @gateway.http.post('/transparent_redirect_requests/' + params.id + '/confirm', null, confirmCallback)

exports.TransparentRedirectGateway = TransparentRedirectGateway