OWCC - How to redirect a doc id to an external link

Recently we have migrated documents from a leading DMS system to OWCC.

In the old DMS, users had a feature in the upload form that choose one of the following to a doc id

1) browse a file from user machine

2) type an external url (for example http://www.google.com)

If you selected chose 1 above, when you hit the doc id it will download the document.

If you selected chose 2 above, when you hit the doc id it will redirect to the external web address.

How do we achieve the option 2 above in OWCC.

We provided a workaround to customer by uploading a sample htm file to the doc id and that htm contain the auto-redirect html script.On clicking the doc id the htm file opens and auto-redirect to external url.