温度。 下载链接（带codeigniter）

Question

I was wondering how I could start generating temporarily download links based on files from a protected directory (e.g. /downloads/). These links need to be valid until someone used it 5 times or so or after a week or so, after that the link shouldn't be accessible anymore.

Any help would be appreciated.

Answer 1

Use a database. Every time a file is downloaded the database would be updated, as soon as a certain file has reached it's limit it can be either removed or it's access could be denied. For example:

$data = $this->some_model->get_file_info($id_of_current_file);
if ( $data->max_downloads <= 5 )
{
    // Allow access to the file
}