PayPal Express Checkout IPN Payment Module

sanjosebass · June 1, 2007

Is anyone using this contribution with QTPro's latest release? Before I install this contribution I need to make sure it keeps my inventory up to date.

Cheers.

MG

Weirfire · June 21, 2007

I've been getting the error on the server side :

We're sorry, but we were unable to process your payment.

An error occured when we tried to process your payment. Please try again or select an alternate payment method.

Below I've pasted in the debugging code I get through the email. Everything else seems to be working fine except for the very last stage of processing the payment.

In function: before_process()
Response from PayPal:

[security] = N/A

[RequesterCredentials]

[0]

[Credentials]

[0]

[username] = N/A

[Password] = N/A

[subject] = N/A

[DoExpressCheckoutPaymentResponse]

[0]

[Timestamp] = 2007-06-21T12:17:56Z

[Ack] = FailureWithWarning

[CorrelationID] = ccb0c0d9e4911

- Hide quoted text -

[Errors]

[0]

[shortMessage] = Transaction refused because of an invalid argument. See additional error messages for details.

[LongMessage] = Currency is not supported

[ErrorCode] = 10401

[severityCode] = Error

[1]

[shortMessage] = Transaction refused because of an invalid argument. See additional error messages for details.

[LongMessage] = Currency is not supported

[ErrorCode] = 10426

[severityCode] = Error

[2]

[shortMessage] = Transaction refused because of an invalid argument. See additional error messages for details.

[LongMessage] = Currency is not supported

[ErrorCode] = 10427

[severityCode] = Error

[3]

[shortMessage] = Transaction refused because of an invalid argument. See additional error messages for details.

[LongMessage] = Currency is not supported

[ErrorCode] = 10428

[severityCode] = Error

[4]

[shortMessage] = Transaction refused because of an invalid argument. See additional error messages for details.

[LongMessage] = Currency is not supported

[ErrorCode] = 10429

[severityCode] = Error

[5]

[shortMessage] = Transaction refused because of an invalid argument. See additional error messages for details.

[LongMessage] = Item amount is missing.

[ErrorCode] = 10430

[severityCode] = Warning

[Version] = 2.000000

[build] = 1.0006

[DoExpressCheckoutPaymentResponseDetails]

[0]

[PaymentInfo]

[0]

[TransactionType] = none

[PaymentType] = none

[PaymentStatus] = None

[PendingReason] = none

[ReasonCode] = none

From this request: (WARNING!!) DO NOT expose your API Username/Password to the public!!

[?xml version="1.0" encoding="utf-8"?]

[soap:Envelope xmlns:soap=http://schemas.xmlsoap.org/soap/envelope/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema]

[soap:Header]

[RequesterCredentials xmlns=urn:ebay:api:PayPalAPI]

[Credentials xmlns=urn:ebay:apis:eBLBaseComponents]

[username]**********[/username]

[Password]**********[/Password]

[/Credentials]

[/RequesterCredentials]

[/soap:Header]

[soap:Body]

[DoExpressCheckoutPaymentReq xmlns=urn:ebay:api:PayPalAPI]

[DoExpressCheckoutPaymentRequest]

[Version xmlns=urn:ebay:apis:eBLBaseComponents]2.0[/Version]

[DoExpressCheckoutPaymentRequestDetails xmlns=urn:ebay:apis:eBLBaseComponents]

[PaymentAction]Sale[/PaymentAction]

[Token]PAYPAL_TOKEN[/Token]

[PayerID]PAYPAL_PAYER_ID[/PayerID]

[PaymentDetails]

[OrderTotal currencyID=PAYPAL_CURRENCY]PAYPAL_ORDER_TOTAL[/OrderTotal]

[OrderDescription]PAYPAL_ORDER_DESCRIPTION[/OrderDescription]

[itemTotal currencyID=PAYPAL_CURRENCY]PAYPAL_ITEM_TOTAL[/itemTotal]

[shippingTotal currencyID=PAYPAL_CURRENCY]PAYPAL_SHIPPING_TOTAL[/shippingTotal]

[HandlingTotal currencyID=PAYPAL_CURRENCY]PAYPAL_HANDLING_TOTAL[/HandlingTotal]

[TaxTotal currencyID=PAYPAL_CURRENCY]PAYPAL_TAX_TOTAL[/TaxTotal]

[NotifyURL]PAYPAL_NOTIFY_URL[/NotifyURL]

[Custom]PAYPAL_CUSTOM[/Custom]

[shipToAddress]

[Name]PAYPAL_SHIPPING_NAME[/Name]

[street1]PAYPAL_SHIPPING_ADDRESS1[/street1]

[street2]PAYPAL_SHIPPING_ADDRESS2[/street2]

[CityName]PAYPAL_SHIPPING_CITY[/CityName]

[stateOrProvince]PAYPAL_SHIPPING_STATE[/stateOrProvince]

[PostalCode]PAYPAL_SHIPPING_ZIP[/PostalCode]

[Country]PAYPAL_SHIPPING_COUNTRY[/Country]

[/shipToAddress]

[PaymentDetailsItem][Name]Pound[/Name][Number]59 (Pound)[/Number][Amount currencyID=""]0[/Amount][Quantity]1[/Quantity][Tax currencyID=""]0[/Tax][/PaymentDetailsItem]

[/PaymentDetails]

[/DoExpressCheckoutPaymentRequestDetails]

[/DoExpressCheckoutPaymentRequest]

[/DoExpressCheckoutPaymentReq]

[/soap:Body]

[/soap:Envelope]

I would assume that the 5 errors that are appearing in the debugging are referring to these lines of code

[OrderTotal currencyID=PAYPAL_CURRENCY]PAYPAL_ORDER_TOTAL[/OrderTotal]
[OrderDescription]PAYPAL_ORDER_DESCRIPTION[/OrderDescription]

[itemTotal currencyID=PAYPAL_CURRENCY]PAYPAL_ITEM_TOTAL[/itemTotal]

[shippingTotal currencyID=PAYPAL_CURRENCY]PAYPAL_SHIPPING_TOTAL[/shippingTotal]

[HandlingTotal currencyID=PAYPAL_CURRENCY]PAYPAL_HANDLING_TOTAL[/HandlingTotal]

[TaxTotal currencyID=PAYPAL_CURRENCY]PAYPAL_TAX_TOTAL[/TaxTotal]

However I've dumped the $order array on the checkout confirmation page "express_checkout.php" and we're definitely getting the currency value through as "GBP".

Does anybody have any ideas of why this error is occurring?

AlexStudio · June 21, 2007

The data stored in $_SESSION['paypal_ec_order_info'] was lost when you reached checkout_process.php (PAY button hit). If you didn't modify the code then there must be something wrong with your installation.

Weirfire · June 21, 2007

The data stored in $_SESSION['paypal_ec_order_info'] was lost when you reached checkout_process.php (PAY button hit). If you didn't modify the code then there must be something wrong with your installation.

I've just reinstalled Express Checkout making sure all the modifications are in place on each of the files;

checkout_shipping.php

checkout_payment.php

filenames.php

Would not having

? //---PayPal WPP Modification START ---//-- ?>
<?php

if ($ec_checkout && $ec_enabled) {

$paypal_ec_payer_info = $_SESSION['paypal_ec_payer_info'];

$address_label = $paypal_ec_payer_info['payer_firstname'] . ' ' . $paypal_ec_payer_info['payer_lastname'] . ' ';

if ($paypal_ec_payer_info['payer_business']) $address_label .= $paypal_ec_payer_info['payer_business'].' ';

$address_label .= $paypal_ec_payer_info['ship_street_1'] . ' ';

if ($paypal_ec_payer_info['ship_street_2']) $address_label .= $paypal_ec_payer_info['ship_street_2'].' ';

$address_label .= $paypal_ec_payer_info['ship_city'] . ', ' . $paypal_ec_payer_info['ship_state'] . ' ' . $paypal_ec_payer_info['ship_postal_code'] . ' ';

$address_label .= $paypal_ec_payer_info['ship_country_name'];

?>

<td class="main" valign="top"><?php echo $address_label; ?></td>

<?php } else { ?>

<td class="main" valign="top"><?php echo tep_address_label($customer_id, $sendto, true, ' ', ' '); ?></td>

<?php } ?>

<? //---PayPal WPP Modification END ---//-- ?>

in the checkout_shipping.php page give us the error that I've explained above?

AlexStudio · June 21, 2007

Would not having
in the checkout_shipping.php page give us the error that I've explained above?

Where did you find these code? There is no such code in the checkout_shipping.php.

Weirfire · June 22, 2007

Where did you find these code? There is no such code in the checkout_shipping.php.

I found it from the "Express Checkout" Contribution download.

AlexStudio · June 22, 2007

I think you probably posted in the wrong thread. Are you using PayPal Pro Direct Payments & Express Checkout contribution?

sheenaw · June 28, 2007

I've been searching the forum for the error message that I'm receiving but I'm not getting relevant results.

I have an ssl certificate installed on my domain.com. My oscommerce is installed on domain.com/shop. When I run the ec_diagnostics.php for /shop I get this error

OpenSSL Not Detected!

The required OpenSSL functions not detected.

PayPal Express Checkout IPN module won't work without OpenSSL installed.

Please contact your host for OpenSSL installation. A dedicated or shared SSL certificate is highly recommended.

Any help would be great.

Edited June 28, 2007 by sheenaw

Terra · June 28, 2007

OpenSSL and Shared/Dedicated SSLs are two different things. OpenSSL functionality is a server wide install which must be done by the server admin.

AlexStudio · June 28, 2007

The openssl function checking is redundant and will be removed in the next update release. Please remove these 2 lines in the ec_diagnostics.php

  if (function_exists('openssl_pkcs7_sign') && function_exists('openssl_pkcs7_encrypt')) $ssl_error = false;
 else $ssl_error = true;

Nice to see you here Terra.

gutore · June 29, 2007

Hi guys

It is impossible for me to figure out how to move the EC button at the beginning of the payment flow, at the moment cust must insert his details before reach the ec button. any solution?

Snoboreders · June 29, 2007

I cannot figure out why my express_checkout page leads me to a blank page? When I go to mysite/ec_diagnostics.php everything is Yes except for the SSL certificate installed and working which reads "No" -- even though I have an image on the bottom of my homepage leading to GoDaddy which says it is secure.

Could this be the reason why express_checkout page is showing up as a blank page?

AlexStudio · July 1, 2007

It is impossible for me to figure out how to move the EC button at the beginning of the payment flow, at the moment cust must insert his details before reach the ec button. any solution?

I will make a separate release of this contribution when I have time, to support PWA (purchase without account), so the customers don't need to insert personal info to your store before they reach the EC button. Supporting PWA will make this contribution much more complicated and not as easy to install, so it will be separated from this 'compact' version.

I cannot figure out why my express_checkout page leads me to a blank page? When I go to mysite/ec_diagnostics.php everything is Yes except for the SSL certificate installed and working which reads "No" -- even though I have an image on the bottom of my homepage leading to GoDaddy which says it is secure.

Could this be the reason why express_checkout page is showing up as a blank page?

The ec_diagnostics.php script is telling you that no SSL certificate detected probably because GoDady server responds to the getenv('HTTPS') function with a different string than expected, and with a port other than 443 (standard https port). However, it can't be the reason why you got a blank express_checkout page. The infomation you gave here is not sufficient to tell what went wrong in your site.

AlexStudio · July 1, 2007

There is a crucial error in your ec_diagnostics result page, API Certificate installed?........No

Please follow the installation guide to download your PayPal API certificate and store it at the right place.

sheenaw · July 2, 2007

Nice to see you here Terra.

So the module will still work and I don't have to worry about what Terra said?

towih_fastdogs · July 3, 2007

receiving this error message in checkout_payment after selecting Paypal Express:

PayPal Express Checkout IPN module installation incomplete! There should be XML files located in http://www.gocoursing.com/includes/ec_xml/ !

all files have been uploaded to includes/ec_xml

diagnostics show no problems or errors

Paypal Express is the first payment option listed

I have read through this support thread and found mention of needing the Register Globals patch. If this is my problem, can you direct me to the exact Register Globals contrib to use? There are several listed in the contribs section.

Thanks,

AlexStudio · July 3, 2007

receiving this error message in checkout_payment after selecting Paypal Express:

PayPal Express Checkout IPN module installation incomplete! There should be XML files located in http://www.gocoursing.com/includes/ec_xml/ !

Check your includes/configure.php for the definition of DIR_FS_CATALOG. It should read:

  define('DIR_FS_CATALOG', dirname($HTTP_SERVER_VARS['SCRIPT_FILENAME']) . '/');

AlexStudio · July 3, 2007

If your server has register globals off, you need the register globals contribution. You can also try the pre-patched version of the same contribution posted by Vger, or the Force Register Globals On contribution. Edited July 3, 2007 by AlexStudio

towih_fastdogs · July 3, 2007

Thanks! I implemented the last one - Force Register Globals On. I also disabled the PWA contribution since it seems that there are issues with it (I had planned on removing it anyway). Still no luck!

However...... after going back and double checking all of the files involved I realized that the permissions on configure.php were still set at read only (444) so even though I had made this change in that file earlier today, the change was never saved....

define('DIR_FS_CATALOG', dirname($HTTP_SERVER_VARS['SCRIPT_FILENAME']) . '/');

Usually that's the case right..... something very basic that's right in front of you... So reminder to anyone making this change - make sure your permissions are set to let you make it!

Thanks for a great contrib and for the continued support of it!

~Ruthanna

www.goCoursing.com

shamonsflame · July 7, 2007

Express Checkout IPN & Discount Coupon

Hello,

I am having a hell of a time getting PayPal Express Checkout IPN to work with Discount Coupon Codes (http://www.oscommerce.com/community/contributions,4269)

I do not know how to pass the coupon info from "ec_shipping.php" to "express_checkout.php".

You can view my site at: http://www.sonadei.com/catalog/index.php

I will send you any files you want, I know you are busy but I really need your help.

Please let me know what more information you need. Thank you!

bwaters · July 18, 2007

The major difference is that the WPP + EC module handles not only PayPal payments via Express Checkout API, but also credit card payments via Direct Payment API.

If you have an US business account and you want to accept credit cards, WPP + EC module is a good choice. If you don't have an US business account, or don't want to pay the monthly fee, EC IPN module is an option for you.

Then this mod is the one for me! Does anyone know if this module is eligible for the yahoo/paypal promotion? If not I'll definately be working on it to get compliance. Thanks AlexStudio for all you hard work.

bwaters · July 30, 2007

AlexStudio,

I was testing your contribution out with CCGV(trad) and they seem to be working fairly well together. I did notice that discount coupons are being sent to paypal as a negative handling charge. The transactions seem to be going through okay but over in paypal land the transaction detail screens show 0.00 handling amount and give no explanation why the subtotal is greater than the final total.

I tried looking at the SOAP API docs from Paypal and visiting their forum but I couldn't find anything definative as to whether negative amounts were allowed and what the proper way to handle discounts was. Do you or any of the other paypal guru's have any idea?

Bryan

AlexStudio · July 31, 2007

Sorry I'm not familiar with any CCGV, so I don't exactly know how to fix the problem.

For the very tricky rounding problem between osCommerce and PayPal, the total amount is calculated by adding up subtotal, shipping total, tax total and handling total.

in catalog/includes/modules/payments/paypal_ec.php line 354-358:

	  $su_total = round($order->info['subtotal'] * $currencies->get_value($currency_id), $decimal);
  $sh_total = round($order->info['shipping_cost'] * $currencies->get_value($currency_id), $decimal);
  $tx_item = round($this->ec_generate_PDI($currency_id, true) * $currencies->get_value($currency_id), $decimal);
  $tx_total = round($order->info['tax'] * $currencies->get_value($currency_id), $decimal);
  $ha_toatl = round(($order->info['total'] - $order->info['subtotal'] - $order->info['shipping_cost'] - $order->info['tax']) * $currencies->get_value($currency_id), $decimal);

where all the amounts are generated. The $ha_total cannot be acquired from elements in the $order, so it's produced backward.

In your case, to support CCGV or other coupons, extra coding in this block is required.

P.S. the line starting with $tx_item is redundant, it will be removed.

cricex · July 31, 2007

Hello,

I have the Express Checkout / Website Payment Pro module installed and working on my site (http://www.mjmautohaus.com) flawlessly.

I do, however have one concern/question. It seems to only allow users to check out if the email linked to my store's database is identical to the email they will try to use to pay for at paypal's website. If the emails are not correct it brings them back and asks them to choose a different payment method. My question is this: Is there a way to bypass this and allow them to use whichever email they want on our site? For example, the email on our database could be [email protected] and the email at paypal is [email protected] and I would still want the transaction to take place.

Thanks!

AlexStudio · July 31, 2007

This contribution has nothing to do with Website Payment Pro. I think you're are in the wrong support thread. Please refer to this one.

PayPal Express Checkout IPN Payment Module

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