Publish-Subscribe (XEP-0060) [1] and Personal Eventing Protocol (XEP-0163) [2] can be used to publish a wide variety of "extended presence" information about users. This document specifies an extended presence payload format that communicates information about the games a user plays. This information may be of interest to a user's contacts and can also be used in social networking applications.
Information about games is provided by the user (or automated integration with gaming systems) and is propagated on the network by the user's client. The information container for gaming data is a <game/> element that is qualified by the 'urn:xmpp:gaming:0' namespace. The game information itself is provided as the XML character data of the following children of the <game/> element:
| Element | Description | Example | Datatype | Inclusion |
|---|---|---|---|---|
| character_name | The name of the user's character in the game | Stentor | xs:string | OPTIONAL |
| character_profile | A URI for a profile of the user's character | http://wow.example.com/profile.html?12345 | xs:anyURI | OPTIONAL |
| name | The name of the game | Worlds of Warfare | xs:string | REQUIRED |
| level | The user's level in the game | 66 | xs:string | OPTIONAL |
| server_address | The hostname or IP address of the server where the user is playing | wow6.example.com | xs:string | OPTIONAL |
| server_name | The name of the server where the user is playing | WOW Example | xs:string | OPTIONAL |
| uri | A URI for the game or relevant gaming service | http://wow.example.com/ | xs:anyURI | OPTIONAL |
NOTE: The datatypes specified above are defined in XML Schema Part 2 [3].
When a user starts playing a game, its client may publish that fact to PEP node whose NodeID is "urn:xmpp:gaming:0" (see Protocol Namespaces regarding issuance of one or more permanent namespaces) or to a generic pubsub node. Because gaming information is not pure presence information and can change independently of the user's availability, it SHOULD NOT be provided as an extension to the <presence/> stanza type.
<iq type='set' from='stpeter@jabber.org/work' id='gaming1'>
<pubsub xmlns='http://jabber.org/protocol/pubsub'>
<publish node='urn:xmpp:gaming:0'>
<item id='1feea9cceec2537e1b561e66d45bc566e276f22f'>
<game xmlns='urn:xmpp:gaming:0'>
<name>chess</name>
<uri>http://www.chesspark.com/</uri>
</game>
</item>
</publish>
</pubsub>
</iq>
The gaming information is then delivered to all subscribers:
<message from='stpeter@jabber.org' to='maineboy@jabber.org'>
<event xmlns='http://jabber.org/protocol/pubsub#event'>
<items node='urn:xmpp:gaming:0'>
<item id='1feea9cceec2537e1b561e66d45bc566e276f22f'>
<game xmlns='urn:xmpp:gaming:0'>
<name>chess</name>
<uri>http://www.chesspark.com/</uri>
</game>
</item>
</items>
</event>
</message>
When the user stops playing the game, the user's client SHOULD send an empty <game/> element with the same ItemID:
<iq type='set' from='stpeter@jabber.org/work' id='gaming2'>
<pubsub xmlns='http://jabber.org/protocol/pubsub'>
<publish node='urn:xmpp:gaming:0'>
<item id='1feea9cceec2537e1b561e66d45bc566e276f22f'>
<game xmlns='urn:xmpp:gaming:0'/>
</item>
</publish>
</pubsub>
</iq>
<message from='stpeter@jabber.org' to='maineboy@jabber.org'>
<event xmlns='http://jabber.org/protocol/pubsub#event'>
<items node='urn:xmpp:gaming:0'>
<item id='1feea9cceec2537e1b561e66d45bc566e276f22f'>
<game xmlns='urn:xmpp:gaming:0'/>
</item>
</items>
</event>
</message>
The games that a user plays may be sensitive. A client MUST provide a way for a user to configure which games or types of games will not be published (e.g., via user preferences).
This document requires no interaction with the Internet Assigned Numbers Authority (IANA) [4].
This specification defines the following XML namespace:
Upon advancement of this specification from a status of Experimental to a status of Draft, the XMPP Registrar [5] shall add the foregoing namespace to the registry located at <https://xmpp.org/registrar/namespaces.html>, as described in Section 4 of XMPP Registrar Function (XEP-0053) [6].
If the protocol defined in this specification undergoes a revision that is not fully backwards-compatible with an older version, the XMPP Registrar shall increment the protocol version number found at the end of the XML namespaces defined herein, as described in Section 4 of XEP-0053.
<?xml version='1.0' encoding='UTF-8'?>
<xs:schema
xmlns:xs='http://www.w3.org/2001/XMLSchema'
targetNamespace='urn:xmpp:gaming:0'
xmlns='urn:xmpp:gaming:0'
elementFormDefault='qualified'>
<xs:element name='game'>
<xs:complexType>
<xs:sequence minOccurs='0'>
<xs:element name='character_name' type='xs:string' minOccurs='0'/>
<xs:element name='character_profile' type='xs:anyURI' minOccurs='0'/>
<xs:element name='level' type='xs:string' minOccurs='0'/>
<xs:element name='name' type='xs:string'/>
<xs:element name='server_address' type='xs:string' minOccurs='0'/>
<xs:element name='server_name' type='xs:string' minOccurs='0'/>
<xs:element name='uri' type='xs:anyURI' minOccurs='0'/>
</xs:sequence>
</xs:complexType>
</xs:element>
</xs:schema>
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The Extensible Messaging and Presence Protocol (XMPP) is defined in the XMPP Core (RFC 6120) and XMPP IM (RFC 6121) specifications contributed by the XMPP Standards Foundation to the Internet Standards Process, which is managed by the Internet Engineering Task Force in accordance with RFC 2026. Any protocol defined in this document has been developed outside the Internet Standards Process and is to be understood as an extension to XMPP rather than as an evolution, development, or modification of XMPP itself.
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Discussion on other xmpp.org discussion lists might also be appropriate; see <https://xmpp.org/community/> for a complete list.
Errata can be sent to <editor@xmpp.org>.
The following requirements keywords as used in this document are to be interpreted as described in RFC 2119: "MUST", "SHALL", "REQUIRED"; "MUST NOT", "SHALL NOT"; "SHOULD", "RECOMMENDED"; "SHOULD NOT", "NOT RECOMMENDED"; "MAY", "OPTIONAL".
1. XEP-0060: Publish-Subscribe <https://xmpp.org/extensions/xep-0060.html>.
2. XEP-0163: Personal Eventing Protocol <https://xmpp.org/extensions/xep-0163.html>.
3. XML Schema Part 2: Datatypes <http://www.w3.org/TR/xmlschema11-2/>.
4. The Internet Assigned Numbers Authority (IANA) is the central coordinator for the assignment of unique parameter values for Internet protocols, such as port numbers and URI schemes. For further information, see <http://www.iana.org/>.
5. The XMPP Registrar maintains a list of reserved protocol namespaces as well as registries of parameters used in the context of XMPP extension protocols approved by the XMPP Standards Foundation. For further information, see <https://xmpp.org/registrar/>.
6. XEP-0053: XMPP Registrar Function <https://xmpp.org/extensions/xep-0053.html>.
Note: Older versions of this specification might be available at https://xmpp.org/extensions/attic/
Modified namespace in accordance with protocol versioning policies.
Updated in accordance with XEP-0163.
Initial version; added several more fields.
First draft.
@report{saint-andre2006xep0196,
title = {User Gaming},
author = {Saint-Andre, Peter},
type = {XEP},
number = {0196},
version = {0.3},
institution = {XMPP Standards Foundation},
url = {https://xmpp.org/extensions/xep-0196.html},
date = {2006-08-28/2008-09-25},
}END