| 0,0 → 1,49 |
|---|
| <?php |
| |
| /* |
| * OIDplus 2.0 |
| * Copyright 2019 Daniel Marschall, ViaThinkSoft |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| // We do this stuff to avoid that the client includes an externa JavaScript from polyfill.io, |
| // since some users might have a problem with that (in regards privacy of their IP address etc.) |
| // So, the OIDplus webserver will act as proxy. |
| |
| if (!isset($_SERVER['HTTP_USER_AGENT'])) die(); |
| |
| $ua = $_SERVER['HTTP_USER_AGENT']; |
| |
| $opts = [ |
| "http" => [ |
| "method" => "GET", |
| "header" => "User-Agent: ".$ua."\r\n" |
| ] |
| ]; |
| |
| $context = stream_context_create($opts); |
| $out = file_get_contents('https://polyfill.io/v3/polyfill.min.js?features=fetch%2CURL', false, $context); |
| |
| # --- |
| |
| $etag = md5($out); |
| header("Etag: $etag"); |
| header('Content-MD5: '.$etag); // RFC 2616 clause 14.15 |
| if (isset($_SERVER['HTTP_IF_NONE_MATCH']) && (trim($_SERVER['HTTP_IF_NONE_MATCH']) == $etag)) { |
| header("HTTP/1.1 304 Not Modified"); |
| } else { |
| header('Content-Type:application/javascript'); |
| echo $out; |
| } |
| |