Query Buycraft API with cURL

Change Buycraft API query so it uses cURL instead of file_get_contents.
Closes #58

addons/Donate/integration/buycraft.php

@@ -8,14 +8,25 @@
 
 $API = $queries->getWhere('donation_settings', array("name", "=", "api_key"));
 $API = $API[0]->value;
-
-$bc_payments = file_get_contents('https://api.buycraft.net/v4?action=payments&secret=' . $API);
-$bc_payments = json_decode($bc_payments, true);
 
-$bc_packages = file_get_contents('https://api.buycraft.net/v4?action=packages&secret=' . $API);
+$ch = curl_init();
+curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
+curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
+curl_setopt($ch, CURLOPT_USERAGENT, 'Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; .NET CLR 1.0.3705; .NET CLR 1.1.4322)');
+
+// Payments
+curl_setopt($ch, CURLOPT_URL, 'https://api.buycraft.net/v4?action=payments&secret=' . $API);
+$bc_payments = curl_exec($ch);
+$bc_payments = json_decode($bc_payments, true);
+
+// Packages
+curl_setopt($ch, CURLOPT_URL, 'https://api.buycraft.net/v4?action=packages&secret=' . $API);
+$bc_packages = curl_exec($ch);
 $bc_packages = json_decode($bc_packages, true);
 
-$bc_categories = file_get_contents('https://api.buycraft.net/v4?action=categories&secret=' . $API);
+// Categories
+curl_setopt($ch, CURLOPT_URL, 'https://api.buycraft.net/v4?action=categories&secret=' . $API);
+$bc_categories = curl_exec($ch);
 $bc_categories = json_decode($bc_categories, true);
 
-?>
+curl_close($ch);