download_file_content() for proxy support.

diff --git a/enrol/authorize/authorizenetlib.php b/enrol/authorize/authorizenetlib.php
index de3faf31b8c57c7a559d460a8dba732af3b23e5d..d1ab0d9c068fe4e5b05c5de28ab637c6c6ed4439 100644 (file)
--- a/enrol/authorize/authorizenetlib.php
+++ b/enrol/authorize/authorizenetlib.php
@@ -95,6 +95,7 @@ function authorize_action(&$order, &$message, &$extra, $action=AN_ACTION_NONE, $
 {
     global $CFG;
     static $constpd;
+    require_once($CFG->libdir.'/filelib.php');
 
     if (!isset($constpd)) {
         $mconfig = get_config('enrol/authorize');