Intermediate IM Protocol Suite

Intermediate IM Protocol Suite This document defines a recommended suite of Jabber/XMPP protocols to be supported by intermediate instant messaging and presence applications. Note: This protocol suite has been obsoleted by XEP-0213 and XEP-0216. This XMPP Extension Protocol is copyright © 1999 – 2024 by the XMPP Standards Foundation (XSF). Permission is hereby granted, free of charge, to any person obtaining a copy of this specification (the "Specification"), to make use of the Specification without restriction, including without limitation the rights to implement the Specification in a software program, deploy the Specification in a network service, and copy, modify, merge, publish, translate, distribute, sublicense, or sell copies of the Specification, and to permit persons to whom the Specification is furnished to do so, subject to the condition that the foregoing copyright notice and this permission notice shall be included in all copies or substantial portions of the Specification. Unless separate permission is granted, modified works that are redistributed shall not contain misleading information regarding the authors, title, number, or publisher of the Specification, and shall not claim endorsement of the modified works by the authors, any organization or project to which the authors belong, or the XMPP Standards Foundation. ## NOTE WELL: This Specification is provided on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, express or implied, including, without limitation, any warranties or conditions of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A PARTICULAR PURPOSE. ## In no event and under no legal theory, whether in tort (including negligence), contract, or otherwise, unless required by applicable law (such as deliberate and grossly negligent acts) or agreed to in writing, shall the XMPP Standards Foundation or any author of this Specification be liable for damages, including any direct, indirect, special, incidental, or consequential damages of any character arising from, out of, or in connection with the Specification or the implementation, deployment, or other use of the Specification (including but not limited to damages for loss of goodwill, work stoppage, computer failure or malfunction, or any and all other commercial damages or losses), even if the XMPP Standards Foundation or such author has been advised of the possibility of such damages. This XMPP Extension Protocol has been contributed in full conformance with the XSF's Intellectual Property Rights Policy (a copy of which can be found at <https://xmpp.org/about/xsf/ipr-policy> or obtained by writing to XMPP Standards Foundation, P.O. Box 787, Parker, CO 80134 USA). 0117 Obsolete Standards Track Standards Council XMPP Core XMPP IM XEP-0045 XEP-0071 XEP-0073 XEP-0096 XEP-0115 XEP-0213 XEP-0216 N/A Peter Saint-Andre stpeter@stpeter.im stpeter@jabber.org https://stpeter.im/ 1.1 2007-10-30 psa

Per a vote of the XMPP Council, changed status to Obsolete and referred implementors to XEP-0213 and XEP-0216.

1.0 2005-07-21 psa Per a vote of the Jabber Council, advanced status to Draft. 0.7 2005-06-08 psa Further clarified dependencies. 0.6 2005-06-02 psa Per Council discussion, modified the XEP-0045 profile to require all MUC use cases. 0.5 2005-04-21 psa Modified the XEP-0045 profile to require occupant use cases and instant room creation only. 0.4 2004-08-18 psa Clarified several matters in the text; changed name from "advanced" to "intermediate". 0.3 2004-03-24 psa Updated to reflect approval of XMPP Core and XMPP IM. 0.2 2003-11-24 psa Changed status to Deferred. 0.1 2003-09-08 psa Initial version.

Note: This protocol suite is obsolete. For updated protocol suites, refer to XMPP Intermediate IM Client 2008 (XEP-0213) XEP-0213: XMPP Intermediate IM Client 2008 <https://xmpp.org/extensions/xep-0213.html>. and XMPP Intermediate IM Server 2008 (XEP-0216) XEP-0216: XMPP Intermediate IM Server 2008 <https://xmpp.org/extensions/xep-0216.html>..

The Basic IM Protocol Suite (XEP-0073) XEP-0073: Basic IM Protocol Suite <https://xmpp.org/extensions/xep-0073.html>. introduced the concept of a "protocol suite". This document extends the basic support specified in Basic IM Protocol Suite (XEP-0073) XEP-0073: Basic IM Protocol Suite <https://xmpp.org/extensions/xep-0073.html>. by specifying an Intermediate IM Protocol Suite.

This document follows the same approach as Basic IM Protocol Suite (XEP-0073) XEP-0073: Basic IM Protocol Suite <https://xmpp.org/extensions/xep-0073.html>.. By design, the Basic IM Protocol Suite does not include more advanced instant messaging functionality; the present document fills the need for a protocol suite that addresses such functionality.

A protocol is deemed worthy of inclusion in this protocol suite if:

It addresses common needs of instant messaging users that are addressed by virtually all other popular IM services or systems.
It is more advanced than basic IM and presence.
It has achieved a status of at least Draft within the XMPP Standards Foundation's standards process (as defined in XMPP Extension Protocols (XEP-0001) XEP-0001: XMPP Extension Protocols <https://xmpp.org/extensions/xep-0001.html>.).

We define the Intermediate IM Protocol Suite as follows:

Specification	Requirement Level
XEP-0073: Basic IM Protocol Suite	REQUIRED
Multi-User Chat (XEP-0045) XEP-0045: Multi-User Chat <https://xmpp.org/extensions/xep-0045.html>.	REQUIRED
XHTML-IM (XEP-0071) XEP-0071: XHTML-IM <https://xmpp.org/extensions/xep-0071.html>.	REQUIRED
SI File Transfer (XEP-0096) XEP-0096: SI File Transfer <https://xmpp.org/extensions/xep-0096.html>.	REQUIRED
Entity Capabilities (XEP-0115) XEP-0115: Entity Capabilities <https://xmpp.org/extensions/xep-0115.html>.	REQUIRED

Note well that the foregoing protocols apply to clients only (i.e., they do not introduce new requirements for servers). In addition, these protocols have their own dependencies, which include the following XEPs (as well as various IETF RFCs and W3C specifications):

Data Forms (XEP-0004) XEP-0004: Data Forms <https://xmpp.org/extensions/xep-0004.html>.
Feature Negotiation (XEP-0020) XEP-0020: Feature Negotiation <https://xmpp.org/extensions/xep-0020.html>.
In-Band Bytestreams (XEP-0047) XEP-0047: In-Band Bytestreams <https://xmpp.org/extensions/xep-0047.html>.
SOCKS5 Bytestreams (XEP-0065) XEP-0065: SOCKS5 Bytestreams <https://xmpp.org/extensions/xep-0065.html>.
Field Standardization for Data Forms (XEP-0068) XEP-0068: Field Data Standardization for Data Forms <https://xmpp.org/extensions/xep-0068.html>.
XMPP Date and Time Profiles (XEP-0082) XEP-0082: XMPP Date and Time Profiles <https://xmpp.org/extensions/xep-0082.html>.
Stream Initiation (XEP-0095) XEP-0095: Stream Initiation <https://xmpp.org/extensions/xep-0095.html>.

In addition, because the intermediate suite builds on the basic suite, by definition all protocols required by Basic IM Protocol Suite (XEP-0073) XEP-0073: Basic IM Protocol Suite <https://xmpp.org/extensions/xep-0073.html>. are also required by the intermediate suite (refer to XEP-0073 for details).

This document introduces no additional security considerations above and beyond those defined in the documents on which it depends.

This document requires no interaction with the Internet Assigned Numbers Authority (IANA) 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/>..

No namespaces or parameters need to be registered with the XMPP Registrar 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/>. as a result of this document.