Magento 1.8 PayPal IPN – Fixing 500 Error in Notifications

ipnmagento-1.8paypal-standard

I am facing an issue with Paypal IPN message in Magento 1.8.1. When I placed the order with Paypal the Order status still shows Pending even I have set the IPN notification URL to http://www.devdomain.com/paypal/ipn/. Also try to place the IPN script in my root folder but no success. 🙁

I am using Paypal Standard. When I see inside the Paypal it shows 500 error in IPN history page.

Please advise how I can resolve this issue.

Best Answer

Finally I found the solution after reviewing in deep. This was cause to due "USER Agent" HTTP Header in request. You can update this on Ipn.php file. Just replace the below line from this function on app/code/core/Mage/Paypal/Model/Ipn.php (Don't apply on core file. Add it on local dir)

protected function _postBack(Zend_Http_Client_Adapter_Interface $httpAdapter)

at line 143 (in magento 1.8.1)

$httpAdapter->write(Zend_Http_Client::POST, $this->_config->getPaypalUrl(), '1.1', array(
                'Connection: close',
            ), $sReq);

replace with

$httpAdapter->write(Zend_Http_Client::POST, $this->_config->getPaypalUrl(), '1.1', array(
                'Connection: Close', 'User-Agent: your_company_name'
                ), $sReq);

Related Solutions

Magento 1.8.1 – Fix PayPal IPN Not Receiving Issue

Sometimes Paypal requests are wrong, so server don't fire Magento routes as it should and you get server error 500. For checking, is it your situation or not, try to do next:

1) Create folder named 'paypal' in Magento root folder.
2) Create file named 'ipn.php' in this 'paypal' folder.
3) Open file and add next content:

<?php
    date_default_timezone_set('America/Los_Angeles');
    require_once '../app/Mage.php';
    umask(0);
    $app = Mage::app('default');
    if ($app->getRequest()->isPost()) {
       return;
    }
    try {
        $data = $app->getRequest()->getPost();
        Mage::getModel('paypal/ipn')->processIpnRequest($data, new Varien_Http_Adapter_Curl());
    } catch (Exception $e) {
        Mage::logException($e);
        $app->getResponse()->setHttpResponseCode(500);
    } 
?>

4) Clear Magento cache and check is Paypal IPN start working for you.

If it start working, just keep it as is. When Paypal requests are correct - it will work with standard Magento way, otherwise - paypal/ipn.php file will be used.

Magento – PayPal IPN’s not working correctly. Error 500

Since you have demonstrated success through the simulator, there is likely something slightly different causing this problem with the live interaction between your and PayPal's servers.

Check your Apache and PHP error logs. Likely your server is encountering a PHP fatal error when it's returning the HTTP 500 to PayPal. You can Google to find out how to configure both Apache and PHP to log said errors.

Best Answer

Related Solutions

Magento 1.8.1 – Fix PayPal IPN Not Receiving Issue

Magento – PayPal IPN’s not working correctly. Error 500

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