<?php
// mkdir and chmod arduino folder to 777
//
//var_dump($_FILES);

/**
 * GZIPs a file on disk (appending .gz to the name)
 *
 * From http://stackoverflow.com/questions/6073397/how-do-you-create-a-gz-file-using-php
 * Based on function by Kioob at:
 * http://www.php.net/manual/en/function.gzwrite.php#34955
 *
 * @param string $source Path to file that should be compressed
 * @param integer $level GZIP compression level (default: 9)
 * @return string New filename (with .gz appended) if success, or false if operation fails
 */
function gzCompressFile($source, $level = 9){
    $dest = $source . '.gz';
    $mode = 'wb' . $level;
    $error = false;
    if ($fp_out = gzopen($dest, $mode)) {
        if ($fp_in = fopen($source,'rb')) {
            while (!feof($fp_in))
                gzwrite($fp_out, fread($fp_in, 1024 * 512));
            fclose($fp_in);
        } else {
            $error = true;
        }
        gzclose($fp_out);
    } else {
        $error = true;
    }
    if ($error)
        return false;
    else
        return $dest;
}

$image = basename($_FILES["file"]["name"]);
//$image = $_FILES["file"]["name"];  // Solves an issue where basename returns Array
$target_file = "tasmota/".$image;
$hostname = $_SERVER['SERVER_NAME'];

if (move_uploaded_file($_FILES["file"]["tmp_name"], $target_file)) {
  if (strpos($target_file, "tasmota32") | strpos($target_file, ".gz")) {
    echo "The file $image has been uploaded to OTA server $hostname. \n";
  } else {
    gzCompressFile($target_file);
    echo "The files $image and $image.gz have been uploaded to OTA server $hostname. \n";
  }
} else {
  echo "Sorry, there was an error uploading your file $image to OTA server $hostname. \n";
}
?>