[RELEASED] New Paypal Extension v079.1

New Paypal Extension v079.1

What is this?
=============
This is finally a proper fix for the core paypal module. This module will be included with the final version of 0.7.9. This version finally uses the proper methods, as defined by the Paypal Developer Forum, of payment processing to best ensure successful payment & order processing.


What's different?
=================
One main problem with the old version was the return click was designed to process the order and IPN was designed to update the order only. But since IPN occured before the return click, there was never an order to update. Now there is a "belt & suspenders" design in place where both the return click AND the IPN callback will both process the order if needed, and update it based on the validation steps. In testing the new version, both IPN and the return executed 100% of the time. This should remove the worry of lost orders.


Installation
============
1. Upload all files, overwriting any existing files.
2. Goto Extensions->Payment->Paypal and reconfigure the Paypal Payment extension
3. Log into your PayPal account
4. Click on 'Profile'
5. Click on 'Website Payment Preferences'
6. Enable Auto Return
7. Set the Auto Return url to your site's callback page: https://my_store/index.php?controller=checkout_process&payment=paypal&method=return&action=callback
8. Enable Payment Data Transfer
9. Click Save
10. On the next screen, Copy and Paste the 'Identity Token' from PayPal into the 'PDT Token' field above.


New Features
============
- PDT/Autoreturn working 100% on the front end (with validation security steps)
- IPN working 100% on the back end
- New security validation using custom fields and paypal handshakes
- New admin config option for displaying itemized cart list on Paypal's site.
- New admin config option for declaring PDT token. This is optional, but helps properly validate the order on the return side.
- New admin config option for choosing authorize only or instant sale
- New admin config option for enabling debug information to write to file for troubleshooting ipn messaging.
- New admin config information about how to set up your paypal account to work with the paypal module
- Allows setting the "final order state" to something other than "Pending", based on the value in the language file.

kgrace wrote: I've got the updated extension installed and I have created and configured the website payments standard account at paypal via your instructions in the readme (ie payment pref's (auto return=on, pdt token set, etc). 

However, after I checkout and am redirected to the paypal site - I don't get the page with the credit card form on the left and login on the right - I only get a option to login to paypal to process. 

kgrace wrote: FYI - I noticed that on paypal's cart compatability page, that Open Cart is not listed. We should probably try to get it listed so users would know that it is compatible (if that's true - but I think based on what I've seen that it is)
https://cms.paypal.com/us/cgi-bin/?cmd= ... p_standard

kgrace wrote: Another thing I've noticed is it's populating the login form on the paypal site with my seller account email,  not the email account of the user creating in the cart.  Again - probably some setting I've screwed up. Let me know if you have any thoughts.

kgrace wrote: Here's what I'm seeing:

1)  If the email used to register/login in the cart is an existing paypal account - when you click continue at checkout to go to to the paypal payment page - paypal recognizes and only give you the login form page versus the multipart page that has create an account form on the left where you can enter the credit card information.  A user can click "Log in and continue" (which is in very small detail print on the left) that will take you on the to the multi part page.  Or obviously, they can login and use their paypal account as they normally would.  However - most users will only notice the login form on the right i figure .  I assume pay pal is only wanting to give you the option to sign in if you already have a paypal account.

2) If the email used to register/login in the cart and sent to paypal doesn't exist as a paypal account - you get the multipart (create and account with credit cart on left / login on the right) page.