iTunes Receipt Decoder

Decode iTunes OS X and iOS receipts without remote server-side validation by using the Apple Inc Root Certificate.

Install

Install from the command line:

$ gem install itunes_receipt_decoder

Or include it in your Gemfile:

gem 'itunes_receipt_decoder'

Example of a Grand Unified Receipt

decoder = ItunesReceiptDecoder.new(base64_encoded_receipt)

decoder.receipt # =>
{
  :application_version=>"1",
  :original_application_version=>"1.0",
  :environment=>"ProductionSandbox",
  :bundle_id=>"com.mbaasy.ios.demo",
  :creation_date=>"2015-08-13T07:50:46Z",
  :in_app=> [{
    :expires_date=>"",
    :cancellation_date=>"",
    :quantity=>1,
    :web_order_line_item_id=>0,
    :product_id=>"consumable",
    :transaction_id=>"1000000166865231",
    :original_transaction_id=>"1000000166865231",
    :purchase_date=>"2015-08-07T20:37:55Z",
    :original_purchase_date=>"2015-08-07T20:37:55Z"
  }, {
    :cancellation_date=>"",
    :quantity=>1,
    :product_id=>"monthly",
    :web_order_line_item_id=>1000000030274153,
    :transaction_id=>"1000000166965150",
    :original_transaction_id=>"1000000166965150",
    :purchase_date=>"2015-08-10T06:49:32Z",
    :original_purchase_date=>"2015-08-10T06:49:33Z",
    :expires_date=>"2015-08-10T06:54:32Z"
  }, {
    :cancellation_date=>"",
    :quantity=>1,
    :product_id=>"monthly",
    :web_order_line_item_id=>1000000030274154,
    :transaction_id=>"1000000166965327",
    :original_transaction_id=>"1000000166965150",
    :purchase_date=>"2015-08-10T06:54:32Z",
    :original_purchase_date=>"2015-08-10T06:53:18Z",
    :expires_date=>"2015-08-10T06:59:32Z"
  }, {
    :cancellation_date=>"",
    :quantity=>1,
    :product_id=>"monthly",
    :web_order_line_item_id=>1000000030274165,
    :transaction_id=>"1000000166965895",
    :original_transaction_id=>"1000000166965150",
    :purchase_date=>"2015-08-10T06:59:32Z",
    :original_purchase_date=>"2015-08-10T06:57:34Z",
    :expires_date=>"2015-08-10T07:04:32Z"
  }, {
    :cancellation_date=>"",
    :quantity=>1,
    :product_id=>"monthly",
    :web_order_line_item_id=>1000000030274192,
    :transaction_id=>"1000000166967152",
    :original_transaction_id=>"1000000166965150",
    :purchase_date=>"2015-08-10T07:04:32Z",
    :original_purchase_date=>"2015-08-10T07:02:33Z",
    :expires_date=>"2015-08-10T07:09:32Z"
  }, {
    :cancellation_date=>"",
    :quantity=>1,
    :product_id=>"monthly",
    :web_order_line_item_id=>1000000030274219,
    :transaction_id=>"1000000166967484",
    :original_transaction_id=>"1000000166965150",
    :purchase_date=>"2015-08-10T07:09:32Z",
    :original_purchase_date=>"2015-08-10T07:08:30Z",
    :expires_date=>"2015-08-10T07:14:32Z"
  }, {
    :cancellation_date=>"",
    :quantity=>1,
    :product_id=>"monthly",
    :web_order_line_item_id=>1000000030274249,
    :transaction_id=>"1000000166967782",
    :original_transaction_id=>"1000000166965150",
    :purchase_date=>"2015-08-10T07:14:32Z",
    :original_purchase_date=>"2015-08-10T07:12:34Z",
    :expires_date=>"2015-08-10T07:19:32Z"
  }]
}

Example of a Transaction Receipt

decoder = ItunesReceiptDecoder.new(base64_encoded_receipt)

decoder.receipt # =>
{
  :original_purchase_date_pst=>"2012-04-30 08:05:55 America/Los_Angeles",
  :original_transaction_id=>"1000000046178817",
  :bvrs=>"20120427",
  :transaction_id=>"1000000046178817",
  :quantity=>"1",
  :original_purchase_date_ms=>"1335798355868",
  :product_id=>"consumable",
  :item_id=>"521129812",
  :bid=>"com.mbaasy.ios.demo",
  :purchase_date_ms=>"1335798355868",
  :purchase_date=>"2012-04-30 15:05:55 Etc/GMT",
  :purchase_date_pst=>"2012-04-30 08:05:55 America/Los_Angeles",
  :original_purchase_date=>"2012-04-30 15:05:55 Etc/GMT"
}

Constructor

ItunesReceiptDecoder.new expects the base64 encoded receipt as the first argument. There optional second argument defined as a hash, valid options are:

expand_timestamps: true : The timestamps included in the unified receipt are not in the same format as a validation from iTunes' servers. Use this option to expand the timestamps and reformat them in the same format as you would expect from a validation. e.g.

ItunesReceiptDecoder.new base64_encoded_receipt,
                         expand_timestamps: true

Methods and properties

ItunesReceiptDecoder.new will return either a ItunesReceiptDecoder::Decode::UnifiedReceipt or ItunesReceiptDecoder::Decode::TransactionReceipt instance. Both classes have the same public methods available:

#receipt : Returns the receipt properties as a Hash.

#environment : Returns the environment as a String.

#production? : True if the receipt was created in the Production environment.

#sandbox? : True if the receipt was not created in the Production environment.

#style : Either :transaction or :unified

Testing

bundle install
rake

Todo

Signature validation