cms90

For someone who want user_id information from IPN call, here is a quick hacking,

file: wp-content/plugins/wp-paypal/paypal-ipn.php
before this line(about line 115), wp_paypal_debug_log("Updating order information", true);
adding following code

    $user_id=$_GET['user_id'];
    $ipn_response['user_id']=$user_id;

before this line(about line 140), do_action('wp_paypal_order_processed', $post_id);
adding following code

    update_post_meta($post_id, '_user_id', $user_id);
    do_action('wp_paypal_order_processed_ipn_response', $post_id,$ipn_response,$user_id);

file:wp-content/plugins/wp-paypal/main.php
change this line(about line 296): $atts['callback'] = home_url() . '/?wp_paypal_ipn=1';
to this:
$atts['callback'] = home_url() . '/?wp_paypal_ipn=1&user_id='.get_current_user_id();

after all above changes, you can use following function to hook on the new action and do what you want,

function c9mf_hook_wp_paypal_order_processed_ipn_response($post_id,$ipn_response,$user_id)
{
/* ipn_response sample
(
[transaction_subject] => Monthly fee
[payment_date] => 00:18:30 Oct 22, 2016 PDT
[txn_type] => subscr_payment
[subscr_id] => I-UH1FCT2P80M9
[last_name] => buyer
[residence_country] => CN
[item_name] => Monthly fee
[payment_gross] => 10.00
[mc_currency] => USD
[business] => testaccount_biz@gmail.com
[payment_type] => instant
[protection_eligibility] => Ineligible
[verify_sign] => AFcWxV21C7fd0v3bYYYRCpSSRl31At3k7RW3LJrgx7UCuT72hnR3sARy
[payer_status] => verified
[test_ipn] => 1
[payer_email] => testaccount_biz@gmail.com
[txn_id] => 2G162234UC429330Y
[receiver_email] => testaccount_biz@gmail.com
[first_name] => test
[payer_id] => LQRQ8N8LT4WMG
[receiver_id] => 8BMVT4A9RKB4W
[payment_status] => Completed
[payment_fee] => 0.69
[mc_fee] => 0.69
[mc_gross] => 10.00
[charset] => windows-1252
[notify_version] => 3.8
[ipn_track_id] => ea507fe44d737
)
*/
    $payment_status = get_post_meta($post_id, '_payment_status', true);

    if(isset($payment_status) && $payment_status=='Completed'){
        //do anything here
    } 
}
add_action('wp_paypal_order_processed_ipn_response','c9mf_hook_wp_paypal_order_processed_ipn_response',10,3);

Hi @naa986,
first, thanks for your great plugin, but I have a question here,
if we want to update_user_meta, we need user_id information, but the action ‘wp_paypal_order_processed’ was triggered by the paypal_ipn call, so, we cannot get the current front-end user_id with the get_user_id() function of wordpress since the paypal_ipn have no idea who make the call, I think we may need to add the user_id information to the notify_url, then we can retrive it, and pass it via the ‘wp_paypal_order_processed’ action, would you mind updating your plugin to achieve this feature?

If you are busing on other project, please let me know, I am happy to update it 🙂