If you are seeing the following error after installing the buySAFE module: curl_setopt() [function.curl-setopt]: CURLOPT_FOLLOWLOCATION cannot be activated when in safe_mode or an open_basedir, this article will assist you.

This error is somewhat both a hosting/server configuration issue and a PHP/cURL issue.

If the PHP function phpinfo is executed:

<?php

phpinfo();

?>

You can check the "safe_mode" and "open_basedir" parameters. You will find that one or the other or both are set.

Because of a potential security hole, beginning with PHP version 4.4.4, if either of the above parameters are set, then PHP will not allow cURL to follow header location changes.  As a result, the call:  curl_setopt($handle, CURLOPT_FOLLOWLOCATION, 1) will fail.

Unfortunately, until cURL is updated to better handle file:// requests, there are only a couple of things to be done in this situation:

If you are on a shared host , or if you are the server administrator, but are unwilling/unable to unset the safe_mode and open_basedir server parameters, then the workaround is to comment that call out of the 2 files:

1. Make copies of the 2 files includes/classes/nusoap.php and admin/includes/classes/nusoap.php

2. Edit both files; line 2160, change:

curl_setopt($this->ch, CURLOPT_FOLLOWLOCATION, 1);

 to

 //curl_setopt($this->ch, CURLOPT_FOLLOWLOCATION, 1);

This will disable cURL's ability to follow header redirects, but the buySAFE module should now work on your site.