How to have an extension in hook_menu()

Question

I am trying to create a menu with a file extension in hook_menu() with the following code:

$items['pdf/products/%.pdf'] = array(
    'title' => 'Download PDF',
    'page callback' => '_pdf_get',
    'page arguments' => array(2),
    'access callback' => TRUE,
    'type' => MENU_CALLBACK
);

It works fine without the .pdf.

Any ideas how I can do this?

Answer 1

Why do you need the .pdf part in the hook menu? Can't you just perform a check on the arg() function in your _pdf_get function to ensure that the argument contains ".pdf" and if not, redirects the user to the url with ".pdf" appended?