The "application/soap+xml" media type
RFC 3902
Document | Type |
RFC - Informational
(September 2004; No errata)
Was draft-baker-soap-media-reg (individual in app area)
|
|
---|---|---|---|
Authors | Mark Nottingham , Mark Baker | ||
Last updated | 2015-10-14 | ||
Stream | IETF | ||
Formats | plain text html pdf htmlized bibtex | ||
Stream | WG state | (None) | |
Document shepherd | No shepherd assigned | ||
IESG | IESG state | RFC 3902 (Informational) | |
Consensus Boilerplate | Unknown | ||
Telechat date | |||
Responsible AD | Scott Hollenbeck | ||
Send notices to | (None) |
Network Working Group M. Baker Request for Comments: 3902 Independent Category: Informational M. Nottingham BEA Systems September 2004 The "application/soap+xml" media type Status of this Memo This memo provides information for the Internet community. It does not specify an Internet standard of any kind. Distribution of this memo is unlimited. Copyright Notice Copyright (C) The Internet Society (2004). Abstract This document defines the "application/soap+xml" media type which can be used to describe SOAP 1.2 messages serialized as XML 1.0. 1. Introduction SOAP version 1.2 (SOAP) is a lightweight protocol intended for exchange of structured information between peers in a decentralized, distributed environment. It defines an extensible messaging framework that contains a message construct based on XML technologies that can be exchanged over a variety of underlying protocols. This specification defines the media type "application/soap+xml" which can be used to identify SOAP 1.2 message envelopes that have been serialized with XML 1.0. Such serializations are useful as the basis of "wire formats" for SOAP 1.2 Protocol Binding Specifications [W3C.REC-soap12-part1-20030624], or in other situations where an XML serialization of a SOAP envelope is required. The "application/soap+xml" media type explicitly identifies SOAP 1.2 message envelopes that have been serialised with XML 1.0; message envelopes with a different SOAP namespace version or using another XML serialisation MUST NOT use it. The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT", "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this document are to be interpreted as described in [RFC2119]. Baker & Nottingham Informational [Page 1] RFC 3902 The "application/soap+xml" media type September 2004 2. Registration MIME media type name: application MIME subtype name: soap+xml Required parameters: none Optional parameters: "charset": This parameter has identical semantics to the charset parameter of the "application/xml" media type as specified in RFC 3023 [RFC3023]. "action": This optional parameter can be used to specify the URI that identifies the intent of the message. In SOAP 1.2, it serves a similar purpose as the SOAPAction HTTP header field did in SOAP 1.1. Namely, its value identifies the intent of the message. The value of the action parameter is an absolute URI-reference as defined by RFC 2396 [RFC2396], which MUST be non-empty. SOAP places no restrictions on the specificity of the URI or that it is resolvable. Although the purpose of the action parameter is to indicate the intent of the SOAP message there is no mechanism for automatically computing the value based on the SOAP envelope. In other words, the value has to be determined out of band. It is recommended that the same value be used to identify sets of message types that are logically connected in some manner, for example part of the same "service". It is strongly RECOMMENDED that the URI be globally unique and stable over time. Use of the action parameter is OPTIONAL. SOAP Receivers MAY use it as a hint to optimize processing, but SHOULD NOT require its presence in order to operate. Encoding considerations: Identical to those of "application/xml" as described in RFC 3023 [RFC3023], section 3.2, as applied to the SOAP envelope infoset. Security considerations: Because SOAP can carry application defined data whose semantics is independent from that of any MIME wrapper (or context within which the MIME wrapper is used), one should not expect to be able to understand the semantics of the SOAP message based on the semantics of the MIME wrapper alone. Therefore, whenever using the "application/soap+xml" media type, it is strongly RECOMMENDED that the security implications of the context within which the SOAP message is used is fully understood. The security implications are likely to involve both the specific SOAP binding to an underlying protocol as well as the application- Baker & Nottingham Informational [Page 2] RFC 3902 The "application/soap+xml" media type September 2004 defined semantics of the data carried in the SOAP message (though one must be careful when doing this, as discussed in SOAP 1.2 Part 1 [W3C.REC-soap12-part1-20030624], section Binding toShow full document text