Get private file on DigitalOcean Spaces

I am using Digital Ocean Spaces to host some video classes. Files are private because I don’t want to anyone directly access them.

I found this answer with the code I need to stream videos to only authenticated users, but it only works with local files –– so to get a private file from DO Spaces I need to first auth with their SDK, but I can’t do that.

They use the same parameters of Amazon S3, but I couldn’t create a connection since Amazon SDK doesn’t a allow changing the host (in this case, should be nyc3.digitaloceanspaces.com).

<?php

define('AWS_KEY', ' _DigitalOcean Spaces Key_ ');
define('AWS_SECRET_KEY', ' _DigitalOcean Spaces SecretKey_ ');

define('AWS_CANONICAL_ID', ' __?__ ');
define('AWS_CANONICAL_NAME', ' __?__ ');

$HOST = 'https://nyc3.digitaloceanspaces.com';

require 'aws/aws-autoloader.php';

$Connection = new AmazonS3(array(
    'key' => AWS_KEY,
    'secret' => AWS_SECRET_KEY,
    'canonical_id' => AWS_CANONICAL_ID,
    'canonical_name' => AWS_CANONICAL_NAME,
));
$Connection->set_hostname($HOST);
$Connection->allow_hostname_override(false);

$Connection->enable_path_style();

$file = "videos/" . $_GET['video'] . ".mp4";

$Connection->get_object('myBucket', $file);

$fakefilename = "./show-video/" . $_GET['video'] . ".mp4";

//          +++++++++++++  Streaming support for Apple iPhone +++++++++++
$fp = @fopen($file, 'rb');
$size = filesize($file); // File size
$length = $size;           // Content length
$start = 0;               // Start byte
$end = $size - 1;       // End byte
header('Content-Type: video/mp4');

//      +++++++++++ Detect if user OS is iPad, iPhone, iPod ++++++++++++++++++++
$iPod = stripos($_SERVER['HTTP_USER_AGENT'], "iPod");
$iPhone = stripos($_SERVER['HTTP_USER_AGENT'], "iPhone");
$iPad = stripos($_SERVER['HTTP_USER_AGENT'], "iPad");
$Android = stripos($_SERVER['HTTP_USER_AGENT'], "Android");
$webOS = stripos($_SERVER['HTTP_USER_AGENT'], "webOS");
//      +++++++++++ End of Detect if user OS is iPad, iPhone, iPod +++++++++++++
if (!($iPad OR $iPhone OR $iPod)) {
    header('Content-Disposition: attachment; filename="' . basename($fakefilename) . '"');
}

header("Accept-Ranges: 0-$length");
if (isset($_SERVER['HTTP_RANGE'])) {

    $c_start = $start;
    $c_end = $end;

    list(, $range) = explode('=', $_SERVER['HTTP_RANGE'], 2);
    if (strpos($range, ',') !== false) {
        header('HTTP/1.1 416 Requested Range Not Satisfiable');
        header("Content-Range: bytes $start-$end/$size");
        exit;
    }
    if ($range == '-') {
        $c_start = $size - substr($range, 1);
    } else {
        $range = explode('-', $range);
        $c_start = $range[0];
        $c_end = (isset($range[1]) && is_numeric($range[1])) ? $range[1] : $size;
    }
    $c_end = ($c_end > $end) ? $end : $c_end;
    if ($c_start > $c_end || $c_start > $size - 1 || $c_end >= $size) {
        header('HTTP/1.1 416 Requested Range Not Satisfiable');
        header("Content-Range: bytes $start-$end/$size");
        exit;
    }
    $start = $c_start;
    $end = $c_end;
    $length = $end - $start + 1;
    fseek($fp, $start);
    header('HTTP/1.1 206 Partial Content');
}
header("Content-Range: bytes $start-$end/$size");
header("Content-Length: " . $length);
$buffer = 1024 * 8;
while (!feof($fp) && ($p = ftell($fp)) <= $end) {
    if ($p + $buffer > $end) {
        $buffer = $end - $p + 1;
    }
    set_time_limit(0);
    echo fread($fp, $buffer);
    flush();
}

fclose($fp);

exit();
//          +++++++ End of Streaming support for Apple iPhone +++++++++++

?>

Can anyone help me? I am totally lost right now.