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401(ok)

401(ok) is an application that works along with iTunes 4.0.1 to 
facilitate a user's access to their own collection of music over a 
network.  It is for personal use only.  Do not steal music.  It is 
strongly advised that you take advantage of the password protection in 
the iTunes sharing configuration to restrict unauthorized access to 
your music.  Additionally, publicly distributing your music's sharing 
URL should be avoided.

If you are looking for a way to download free music, you've come to the 
wrong place.  However, if you enjoyed the freedom introduced in iTunes 
4.0 to listen to your music wherever you might be, then this could be 
your solution.

This software is inefficient, ugly, and poorly written.  If anyone 
really uses this thing, I'll see about making it better.  Mail 
suggestions to speth@icommune.net.

To share your music:
Turn on music sharing in the iTunes preferences, set an authentication 
password, then run the 401(ok) application.  Your shared music URL is 
now something like "daap://your.host.name.or.ip:4689".  The ":4689" 
following the machine name or IP address is important.

To access your shared music:
In iTunes, choose "Open Stream..." from the "Advanced" menu.  In the 
dialog, enter the URL of your shared music collection (starting with 
"daap://").  The stream URL will appear in your iTunes library, but 
won't play anything.  iTunes might even display an error dialog.  Give 
it a few seconds.... then you'll see that the music collection shows up 
in the iTunes Source list as Shared Music.  Click on it there, and if 
everything goes well, you'll be prompted for your password, then your 
music will appear.

How it Works

401(ok) acts as an application-level proxy for the iTunes sharing 
protocol.  The proxy allows your iTunes applications to communicate 
just as though they were sitting next to each other on a LAN.  No data 
in their communication stream is modified by the proxy, so your 
machines will have the same abilities and restrictions as they would on 
a local network.

For your client machine to be aware of your server, 401(ok) takes the 
"daap://" stream URLs in your iTunes library and turns them into 
Rendezvous announcements on your local network  It checks your library 
every 5 seconds to see if new announcements need to be made.

Legal Stuff

Code from Apple's mDNSResponder project was used without modification 
in 401(ok).  For information about mDNSResponder see 
http://developer.apple.com/darwin/projects/rendezvous/

Portions Copyright (c) 1999-2001 Apple Computer, Inc. All Rights 
Reserved.

This file contains Original Code and/or Modifications of Original Code 
as defined in and that are subject to the Apple Public Source License 
Version 1.2 (the 'License'). You may not use this file except in 
compliance with the License. Please obtain a copy of the License at 
http://www.apple.com/publicsource and read it before using this file.

The Original Code and all software distributed under the License are 
distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER 
EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, 
INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, 
FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. 
Please see the License for the specific language governing rights and 
limitations under the License.