public static function image_from_url($url)
{
WPI_Log::get_instance()->log('wpi api upload image from url : ' . json_encode($url));
$server_now = new WPI_Server();
if (isset($_POST['image_url'])) {
$url = $_POST['image_url'];
} else {
if (empty($url)) {
$server_now->response_failure('empty $url');
}
}
$dir = wp_upload_dir();
$file_name = get_url_file_name($url);
$save_to = $dir['path'] . '/' . $file_name;
if (file_exists($save_to)) {
$server_now->response_failure('file has exist !');
} else {
download_remote_file_with_curl($url, $save_to);
$server_now->response_success('file saved !');
}
}