Software Information

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Software Information This document specifies an extended data format whereby XMPP service discovery responses can include detailed information about the software application that powers a given XMPP entity for includion in service discovery responses. &LEGALNOTICE; 0232 Deferred Standards Track Standards Council XMPP Core XEP-0004 XEP-0030 NOT_YET_ASSIGNED &stpeter; 0.3 2009-02-26 psa

Per Last Call feedback, removed icons for presence states; redefined the icon field to use media element per XEP-0221.

0.2 2008-03-14 psa

Added icon fields.

0.1 2008-01-30 psa

Initial published version.

0.0.3 2008-01-23 psa

Added software field; generalized to be software information, not client information.

0.0.2 2008-01-22 psa

Clarified relationship to Software Version (XEP-0092).

0.0.1 2008-01-21 psa

First draft.

&xep0128; defines a way for an XMPP entity to include extended information in its responses to &xep0030; information requests. This document specifies a usage of XEP-0128 whereby an XMPP entity can provide detailed data about itself in such responses. This protocol is intended to replace &xep0092; for software information discovery (thus reducing or eliminating the need for distinct software version requests) and also provides a format that can be encapsulated into &xep0115; notifications.

To illustrate this usage, consider the following example of a disco#info request-response interaction that includes detailed client information:

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Upon receiving the disco#info request, the software replies and includes extended information in a data form (&xep0004;), where the icon is communicated using the format defined in &xep0221;.

urn:xmpp:dataforms:softwareinfo http://www.shakespeare.lit/clients/exodus.jpg cid:sha1+f24030b8d91d233bac14777be5ab531ca3b9f102@bob.xmpp.org Windows XP Exodus 0.9.1 ]]>

The fields have the following meaning:

icon -- A default icon to show for a device running the software
os -- The operating system on which the XMPP software is running
os_version -- The operating system version
software -- The XMPP software running at the entity (if this field is provided, its value SHOULD override any software name provided as the value of the 'name' attribute in the service discovery <identity/> element)
software_version -- The XMPP software version

Service discovery information is typically world-readable. Therefore, care should be taken in exposing information that may make it easier for a potential attacker to target the publishing entity's system (e.g., the operating system on which the software is running).

This document requires no interaction with &IANA;.

The ®ISTRAR; shall include the following information in its registries.

&xep0068; defines a process for standardizing the fields used within Data Forms qualified by a particular namespace, and XEP-0128 describes how to use field standardization in the context of service discovery. This section registers fields for software information scoped by the "urn:xmpp:dataforms:softwareinfo" FORM_TYPE.


  urn:xmpp:dataforms:softwareinfo
  XEP-0232
  
    Forms enabling the communication of detailed information
    about an XMPP client.
  
  
  
  
  
  

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Thanks to Dave Cridland, Olivier Goffart, Joe Hildebrand, Etan Reisner, Remko Tronçon, and Jiří Zárevúcký for their comments.