Do not attempt to process empty IPNs and actually exit the processing function where indicated if PayPal determines an IPN is invalid.

Issue #1498848 by rszrama: show an error message and prevent the payment attempt if PayPal WPP has not been configured yet.

Issue #1428258 by rszrama: make the payment details instructions for PayPal WPS optional and disabled by default.

Issue #1428258 by rszrama: add the PayPal WPS CSS through the payment methods radio buttons instead of the PayPal WPS payment details div so it's available even if PayPal WPS isn't the default payment method.

Issue #1431464 by guy_schneerson, rszrama: allow transactions in any supported currency in PayPal WPS.

Issue #1431464 by guy_schneerson, rszrama: allow transactions in any supported currency in PayPal WPP and fix the broken billing address validation.

Issue #1253030 by rszrama: add hook_requirements() in the PayPal WPP .install file to ensure cURL is enabled on the site.

Issue #1242438 by rszrama: update the supported languages and currency codes in the WPP and WPS modules to reflect the most current lists and labels.

Issue #1264900 by rszrama: update the WPS module to use a default settings function like WPP uses and ensure the settings form is always working with array values for settings parameters.

Issue #1751654 by andyg5000, rszrama: log the full IPN when specified during normal IPN validation instead of just when the customer returns back to the site from PayPal.

Issue #1774762 by rszrama: update the IPN listener to support recurring payment IPNs by not hardcoding an assumption on the invoice parameter in the IPN contents.

Heine authored Sep 04, 2012 and Ryan Szrama committed Sep 04, 2012

Issue #1570530 by Heine: do not call stripslashes() when validating IPNs, because Drupal automatically strips slashes in POST data during the bootstrap process.

Andy Giles authored Sep 04, 2012 and Ryan Szrama committed Sep 04, 2012

Issue #1738476 by cupid20d, andyg5000: pass the correct parameters to drupal_http_request() when performing the initial IPN validation.

Issue #1772362 by rszrama: prevent PayPal WPP transactions that do not have a valid value for the default billing address.

Andy Giles authored Aug 15, 2012 and Ryan Szrama committed Aug 15, 2012

Issue #1561594 by sonictruth, andyg5000: add a hook_commerce_paypal_wps_order_form_data_alter() to support the alteration of the data array used to generate a WPS redirect form prior to the form array being created.

Matthias Hutterer authored Aug 15, 2012 and Ryan Szrama committed Aug 15, 2012

Issue #1615748 by mh86: allow non-payment IPNs to be processed solely by other modules, skipping WPS processing when a txn_id is not present.

mikehues authored Feb 04, 2012 and Ryan Szrama committed Feb 04, 2012

Issue #1408244 by mikehues: allow an order object to be passed in with a PayPal WPP request that makes it through to the API request's alter function.

Issues #1112784 and #1258420 by rszrama and j0rd: add PayPal payment method icons and help text in the submit_form callback for PayPAl WPS.

Add a PayPal WPP module that supports authorization only and authorization plus capture transactions.

Issue #1248972 by rszrama: update a call to commerce_line_items_quantity() for the new parameters in RC1.

Enable automatic redirection to PayPal WPS now that the core Commerce patch has landed to support this.

Issue #1129188 by rszrama: check for the existence of a test_ipn parameter before comparing against it.

Skip duplicate IPN checking in the event of an IPN without a txn_id to accommodate subscription notifications.

#1112914 by instanceofjamie, rszrama: add hook_commerce_paypal_ipn_process() to allow other modules to react to validated IPNs.

Actually load the prior authorization IPN properly and ensure its ID differs from the current txn_id.

For prior authorization captures, use the authorization IPN's transaction and update it with the capture values (especially since the capture amount can change).

Properly set the default IPN logging option and perform a super basic validation of IPN data on return from PayPal WPS.

Remove some extraneous  references since that code has been moved to the Commerce PayPal module itself.