flano-yuki/output Secret

## gistfile1.php
<?php
$sock = socket_create(AF_INET, SOCK_STREAM, SOL_TCP);
socket_bind($sock, "192.168.0.161");
socket_connect($sock, '106.186.112.116', 80);

function create_settings_frame($ack){
  $ack_flag = $ack ? 0x01 : 0x00;
  $frame = "\0"."\0"."\0". //length
          "\4". //type
          "$ack_flag".
          "\0"."\0"."\0"."\0"; //stream id
  return $frame;
}

function length_to_3bytes($length){
  return chr( $length >> 16).
         chr(($length >> 8 ) & 255).
         chr( $length & 255);
}

function encode_headers($headers){
  $encoded_headers = "";
  foreach($headers as $key => $value){
    $prefix = "\0"; //whithout indexing
    $encoded_key = chr(strlen($key)).$key;
    $encoded_value = chr(strlen($value)).$value;
    $encoded_headers .= $prefix. $encoded_key. $encoded_value;
  }

  return $encoded_headers;
}

function create_headers_frame($headers) {
  $encoded_headers = encode_headers($headers);
  $frame = length_to_3bytes(strlen($encoded_headers)).
        "\1". //type
        "\5". //flag
        "\0"."\0"."\0"."\1"; //stream id
  return $frame. $encoded_headers;
}


$request = "PRI * HTTP/2.0\r\n\r\nSM\r\n\r\n";
socket_write($sock, $request);
socket_write($sock, create_settings_frame(false));
$buf = "";

while(true){
  if(strlen($buf) >= 9){ //can parse frame header
    $length = (ord($buf[0])  << 16 ) +
              (ord($buf[1])  <<  8 ) +
               ord($buf[2]);
    if(strlen($buf) < $length + 9){
      continue;
    }
  }
  else{
    $buf .= socket_read($sock, 10000);
    continue;
  }

  $type  = ord($buf[3]);
  $flags = ord($buf[4]);

  if($type == 0x00){
    print("Recieve DATA\n");
    print(substr($buf , 9, 100));
  }
  elseif($type == 0x01){
    print("Recieve HEADER\n");
  }
  elseif($type == 0x04){
    if(($flags & 1) == 0){
      print("Recieve SETTINGS\n");
      print("SEND ACK\n");
      socket_write($sock, create_settings_frame(true));
    }
    if(($flags & 1) == 1){
      print("Receive SETTINGS Ack\n");
      print("Send HEADERS\n");
      $headers = [
        ":method" => "GET",
        ":path" => "/",
        ":scheme" => "http",
        ":authority" => "nghttp2.org"
      ];
      socket_write($sock, create_headers_frame($headers));
    }
  }
  elseif($type == 0x0a){
    print("Recieve ALTSVC\n");
  }

  $buf = substr($buf,$length + 9);
  sleep(1);
}

sleep(1);

$buf += @socket_read($sock, 100);

socket_close($sock);

?>

## output
Recieve SETTINGS
SEND ACK
Recieve ALTSVC
Receive SETTINGS Ack
Send HEADERS
Recieve HEADER
Recieve DATA

<!DOCTYPE html>
<!--[if IEMobile 7 ]><html class="no-js iem7"><![endif]-->
<!--[if lt IE 9]><html cRecieve DATA
ent program to output HTTP/2 transaction in well-known
<a href="https://dvcs.w3.org/hg/webperf/raw-f...(ry
	<?php
	$sock = socket_create(AF_INET, SOCK_STREAM, SOL_TCP);
	socket_bind($sock, "192.168.0.161");
	socket_connect($sock, '106.186.112.116', 80);

	function create_settings_frame($ack){
	$ack_flag = $ack ? 0x01 : 0x00;
	$frame = "\0"."\0"."\0". //length
	"\4". //type
	"$ack_flag".
	"\0"."\0"."\0"."\0"; //stream id
	return $frame;
	}

	function length_to_3bytes($length){
	return chr( $length >> 16).
	chr(($length >> 8 ) & 255).
	chr( $length & 255);
	}

	function encode_headers($headers){
	$encoded_headers = "";
	foreach($headers as $key => $value){
	$prefix = "\0"; //whithout indexing
	$encoded_key = chr(strlen($key)).$key;
	$encoded_value = chr(strlen($value)).$value;
	$encoded_headers .= $prefix. $encoded_key. $encoded_value;
	}

	return $encoded_headers;
	}

	function create_headers_frame($headers) {
	$encoded_headers = encode_headers($headers);
	$frame = length_to_3bytes(strlen($encoded_headers)).
	"\1". //type
	"\5". //flag
	"\0"."\0"."\0"."\1"; //stream id
	return $frame. $encoded_headers;
	}


	$request = "PRI * HTTP/2.0\r\n\r\nSM\r\n\r\n";
	socket_write($sock, $request);
	socket_write($sock, create_settings_frame(false));
	$buf = "";

	while(true){
	if(strlen($buf) >= 9){ //can parse frame header
	$length = (ord($buf[0]) << 16 ) +
	(ord($buf[1]) << 8 ) +
	ord($buf[2]);
	if(strlen($buf) < $length + 9){
	continue;
	}
	}
	else{
	$buf .= socket_read($sock, 10000);
	continue;
	}

	$type = ord($buf[3]);
	$flags = ord($buf[4]);

	if($type == 0x00){
	print("Recieve DATA\n");
	print(substr($buf , 9, 100));
	}
	elseif($type == 0x01){
	print("Recieve HEADER\n");
	}
	elseif($type == 0x04){
	if(($flags & 1) == 0){
	print("Recieve SETTINGS\n");
	print("SEND ACK\n");
	socket_write($sock, create_settings_frame(true));
	}
	if(($flags & 1) == 1){
	print("Receive SETTINGS Ack\n");
	print("Send HEADERS\n");
	$headers = [
	":method" => "GET",
	":path" => "/",
	":scheme" => "http",
	":authority" => "nghttp2.org"
	];
	socket_write($sock, create_headers_frame($headers));
	}
	}
	elseif($type == 0x0a){
	print("Recieve ALTSVC\n");
	}

	$buf = substr($buf,$length + 9);
	sleep(1);
	}

	sleep(1);

	$buf += @socket_read($sock, 100);

	socket_close($sock);

	?>
	Recieve SETTINGS
	SEND ACK
	Recieve ALTSVC
	Receive SETTINGS Ack
	Send HEADERS
	Recieve HEADER
	Recieve DATA

	<!DOCTYPE html>
	<!--[if IEMobile 7 ]><html class="no-js iem7"><![endif]-->
	<!--[if lt IE 9]><html cRecieve DATA
	ent program to output HTTP/2 transaction in well-known
	<a href="https://dvcs.w3.org/hg/webperf/raw-f...(ry