I built an app on OpenShift Online and now I'm trying to integrate with PayPal. I'm running into SSL cURL errors that I don't know how to address. I've looked through SO, OpenShift Online, PayPal and elsewhere but can't get this issue worked through.
Background:
- PHP-based app running on OpenShift Online v2
- Setup as https://*******.rhcloud.com/test/test_IPN.php --- so I can use their *.rhcloud.com wildcard certificate
- Using PayPal "Buy Now" button with PayPal Payments Standard, testing in their sandbox
- Using IPN sample code found at https://github.com/paypal/ipn-code-samples/blob/master/paypal_ipn.php
Here is the portion of the code that seems to be at the root of my problem:
// CONFIG: Please download 'cacert.pem' from "http://curl.haxx.se/docs/caextract.html" and set the directory path
// of the certificate as shown below. Ensure the file is readable by the webserver.
// This is mandatory for some environments.
//$cert = __DIR__ . "./cacert.pem";
//curl_setopt($ch, CURLOPT_CAINFO, $cert);
Problem:
[1] using code "as is" (lines 79-80 commented out) throws curl error: "SSL connect error"
[2] using lines 79-80 uncommented out (and cacert.pem placed in same dir as php script) throws curl error: "Problem with the SSL CA cert (path? access rights?)"
It's likely I'm missing something simple here. Any help getting this to work properly on OpenShift Online is greatly appreciated. Thanks!