Run HTTP File Server on Mac OSX Lion Server?

Hello!

I have a Mac Mini running Mac OS X Lion Server.

I would like to be able to host a Web Server that runs within the built in Apache server that allows the transfer of files from Client to Mac Mini HD and vice versa using authentication from Open Directory.

My inspiration is HTTP File Server, or HFS (no, not the Disk Format). This, however, is a Windows Program. It allows a HTTP platform to upload and download files from the HD of the machine it is running from. It comes as a nifty .exe that has everything you need. I'd like something similar but to run on the Mac Server.

Note, the upload and download cannot be done over FTP. It must be using HTTP like HFS does.

At the very least, I'd like a HTTP (Port 80) Web Server that runs within Apache that allows upload and download to the HD.

And at best, authentication using the built in Open Directory credentials. And to make even more secure, HTTPS or SSL.

So it's like iCloud or iWork.com but using my own disk space and credentials.

Predicted End Product:

1. User visits https://192.168.x.x or https://MyDNSName.dns.com
2. Greeted with Home Screen (.html or .php)
3. Clicks login
4. Has a nice login window to use (probably have to be .php to keep simple)
5. Logs in using same credentials as they would to logon to Mac Mini locally
6. Greeted with view of their files in their Directory, e.g.: /Library/Server/Web/HFS/User1 or /Library/Server/Web/HFS/User2, etc
7. Can choose to download present files
8. Or upload. Click Upload
9. Upload window appears. Selects file on Client machine.
10. Over HTTP, file is uploaded to Host Machine to /Library/Server/Web/HFS/User1

What I'd like to know is what is the easiest way of going about this? Some kind of CMS like Wordpress or software like HFS?

Many thanks,

Clark