Editing Digital Audio Access Protocol (section)

== Description ==
The DAAP protocol was originally introduced in iTunes version 4.0.<ref name="dappdoc">[http://tapjam.net/daap/ "Unofficial DAAP protocol documentation"] {{webarchive|url=https://web.archive.org/web/20120222074557/http://tapjam.net/daap/ |date=2012-02-22 }} by Daniel Garcia, retrieved December 2, 2006</ref> Initially, Apple did not officially release a protocol description, but it has been reverse-engineered to a sufficient degree that reimplementations of the protocol for non-iTunes platforms have been possible.

A DAAP server is a specialized [[HTTP]] server, which performs two functions. It sends a list of songs and it streams requested songs to clients. There are also provisions to notify the client of changes to the server. Requests are sent to the server by the client in form of URLs and are responded to with data in {{mono|application/x-dmap-tagged}} mime-type, which can be converted to [[XML]] by the client. iTunes uses the [[zeroconf]] (also known as [[Bonjour (software)|Bonjour]]) service to announce and discover DAAP shares on a local [[Subnetwork|subnet]]. The DAAP service uses [[Transmission Control Protocol|TCP]] port 3689 by default.<ref>[https://www.iana.org/assignments/port-numbers "Well Known Port Numbers"] by ''[[Internet Assigned Numbers Authority|IANA]]'', November 30, 2006, retrieved December 2, 2006</ref>

DAAP is one of two media sharing schemes that Apple has currently released. The other, [[Digital Photo Access Protocol]] (DPAP), is used by [[iPhoto]] for sharing images. They both rely on an underlying protocol, [[Digital Media Access Protocol]] (DMAP).

Early versions of iTunes allowed users to connect to shares across the Internet, however, in recent versions only computers on the same subnet can share music (workarounds such as [[Port forwarding|port tunneling]] are possible). ''[[The Register]]'' speculates that Apple made this move in response to pressure from the record labels.<ref>[https://www.theregister.co.uk/2003/05/28/apple_halts_itunes_internet_sharing/ "Apple halts iTunes' Internet sharing ability"] by Tony Smith, ''The Register'', May 28, 2003, retrieved August 31, 2006</ref> More recent versions of iTunes also limit the number of clients to 5 unique [[IP address]]es within a 24-hour period.

DAAP has also been implemented in other non-iTunes media applications such as [[Banshee (music player)|Banshee]], [[Amarok (software)|Amarok]], [[Exaile]] (with a plugin), [[Songbird (software)|Songbird]] (with a plugin), [[Rhythmbox]], and [[WiFiTunes]].