fix pagination regex

Author: MartinLenord

src/lti/LTI_Names_Roles_Provisioning_Service.php

@@ -31,7 +31,7 @@ public function get_members() {
 
  $next_page = false;
  foreach($page['headers'] as $header) {
- if (preg_match("/^Link: ?<(.*)>; ?rel=\"next\"$/i", $header, $matches)) {
+ if (preg_match("/^Link:.*<([^>])>; ?rel=\"next\"/i", $header, $matches)) {
  $next_page = $matches[1];
  break;
  }

src/lti/LTI_Service_Connector.php

@@ -50,6 +50,7 @@ public function get_access_token($scopes) {
  curl_setopt($ch, CURLOPT_POST, 1);
  curl_setopt($ch, CURLOPT_POSTFIELDS, http_build_query($auth_request));
  curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
+ curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);
  $resp = curl_exec($ch);
  $token_data = json_decode($resp, true);
  curl_close ($ch);
@@ -66,6 +67,7 @@ public function make_service_request($scopes, $method, $url, $body = null, $cont
  curl_setopt($ch, CURLOPT_URL, $url);
  curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
  curl_setopt($ch, CURLOPT_HEADER, 1);
+ curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);
  if ($method === 'POST') {
  curl_setopt($ch, CURLOPT_POST, 1);
  curl_setopt($ch, CURLOPT_POSTFIELDS, strval($body));