http-proxy.php
89 lines
| 1 | <?php |
| 2 | /** |
| 3 | * HTTP Proxy implemented using HttpClient\Client |
| 4 | * |
| 5 | * This could be a replacement for the curl-based PHPProxy shipped |
| 6 | * in https://github.com/WordPress/wordpress-playground/pull/1546. |
| 7 | */ |
| 8 | |
| 9 | use WordPress\HttpClient\Client; |
| 10 | use WordPress\HttpClient\ClientEvent; |
| 11 | use WordPress\HttpClient\Request; |
| 12 | |
| 13 | require __DIR__ . '/vendor/autoload.php'; |
| 14 | |
| 15 | function get_target_url( $server_data = null ) { |
| 16 | if ( null === $server_data ) { |
| 17 | $server_data = $_SERVER; |
| 18 | } |
| 19 | $request_uri = $server_data['REQUEST_URI']; |
| 20 | $target_url = $request_uri; |
| 21 | |
| 22 | // Remove the current script name from the beginning of $targetUrl. |
| 23 | if ( 0 === strpos( $target_url, $server_data['SCRIPT_NAME'] ) ) { |
| 24 | $target_url = substr( $target_url, strlen( $server_data['SCRIPT_NAME'] ) ); |
| 25 | } |
| 26 | |
| 27 | // Remove the leading slash. |
| 28 | if ( '/' === $target_url[0] || '?' === $target_url[0] ) { |
| 29 | $target_url = substr( $target_url, 1 ); |
| 30 | } |
| 31 | |
| 32 | return $target_url; |
| 33 | } |
| 34 | |
| 35 | $target_url = get_target_url(); |
| 36 | $host = parse_url( $target_url, PHP_URL_HOST ); |
| 37 | $requests = array( |
| 38 | new Request( |
| 39 | $target_url, |
| 40 | array( |
| 41 | 'method' => $_SERVER['REQUEST_METHOD'], |
| 42 | 'headers' => array_merge( |
| 43 | getallheaders(), |
| 44 | array( |
| 45 | 'Accept-Encoding' => 'gzip, deflate', |
| 46 | 'Host' => $host, |
| 47 | ) |
| 48 | ), |
| 49 | 'body_stream' => 'POST' === $_SERVER['REQUEST_METHOD'] ? fopen( 'php://input', 'r' ) : null, |
| 50 | ) |
| 51 | ), |
| 52 | ); |
| 53 | |
| 54 | $client = new Client(); |
| 55 | $client->enqueue( $requests ); |
| 56 | |
| 57 | $headers_sent = false; |
| 58 | while ( $client->await_next_event() ) { |
| 59 | $request = $client->get_request(); |
| 60 | switch ( $client->get_event() ) { |
| 61 | case Client::EVENT_GOT_HEADERS: |
| 62 | http_response_code( $request->response->status_code ); |
| 63 | foreach ( $request->response->headers as $name => $value ) { |
| 64 | if ( |
| 65 | 'transfer-encoding' === $name || |
| 66 | 'set-cookie' === $name || |
| 67 | 'content-encoding' === $name |
| 68 | ) { |
| 69 | continue; |
| 70 | } |
| 71 | header( "$name: $value" ); |
| 72 | } |
| 73 | $headers_sent = true; |
| 74 | break; |
| 75 | case Client::EVENT_BODY_CHUNK_AVAILABLE: |
| 76 | echo $client->get_response_body_chunk(); |
| 77 | break; |
| 78 | case Client::EVENT_FAILED: |
| 79 | if ( ! $headers_sent ) { |
| 80 | http_response_code( 500 ); |
| 81 | echo 'Failed request to ' . $request->url . ' – ' . $request->error; |
| 82 | } |
| 83 | break; |
| 84 | case Client::EVENT_FINISHED: |
| 85 | break; |
| 86 | } |
| 87 | echo "\n"; |
| 88 | } |
| 89 |