PHP_GDirect.php

<?php 
//Fungsi untuk merubah format bytes
function filesize_formatted($file)
{
    $bytes = $file;

    if ($bytes >= 1073741824) {
        return number_format($bytes / 1073741824, 2) . ' GB';
    } elseif ($bytes >= 1048576) {
        return number_format($bytes / 1048576, 2) . ' MB';
    } elseif ($bytes >= 1024) {
        return number_format($bytes / 1024, 2) . ' KB';
    } elseif ($bytes > 1) {
        return $bytes . ' bytes';
    } elseif ($bytes == 1) {
        return '1 byte';
    } else {
        return '0 bytes';
    }
}

//Fungsi untuk mendapatkan direct url
function generateLink($DriveID, $direct=FALSE) {
    $ch = curl_init("https://drive.google.com/uc?id=$DriveID&authuser=0&export=download");
    curl_setopt_array($ch, array(
        CURLOPT_CUSTOMREQUEST => 'POST',
        CURLOPT_SSL_VERIFYPEER => false,
        CURLOPT_POSTFIELDS => [],
        CURLOPT_RETURNTRANSFER => true,
        CURLOPT_ENCODING => 'gzip,deflate',
        CURLOPT_IPRESOLVE => CURL_IPRESOLVE_V4,
        CURLOPT_HTTPHEADER => [
            'accept-encoding: gzip, deflate, br',
            'content-length: 0',
            'content-type: application/x-www-form-urlencoded;charset=UTF-8',
            'origin: https://drive.google.com',
            'user-agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/65.0.3325.181 Safari/537.36',
            'x-client-data: CKG1yQEIkbbJAQiitskBCMS2yQEIqZ3KAQioo8oBGLeYygE=',
            'x-drive-first-party: DriveWebUi',
            'x-json-requested: true'
        ]
    ));
    $response = curl_exec($ch);
    $response_code = curl_getinfo($ch, CURLINFO_HTTP_CODE);
    curl_close($ch);
    if($response_code == '200') { // Jika response status OK
        $object = json_decode(str_replace(')]}\'', '', $response));
        if(isset($object->downloadUrl)) {
            if($direct) return header("Location:$object->downloadUrl");
            return [
                'link' => $object->downloadUrl,
                'name' => $object->fileName,
                'size' => filesize_formatted($object->sizeBytes)
            ];  
        } 
    } else {
        return $response_code;
    }
}

//mengambil query url
$url = $_GET['url'];
echo json_encode(generateLink($url));

?>