ITU-T X 892-2005 Information technology C Generic applications of ASN 1 Fast Web Services《信息技-ASN 1一般应用 快速网络服务 研究组17》.pdf

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1、 International Telecommunication Union ITU-T X.892TELECOMMUNICATION STANDARDIZATION SECTOR OF ITU (05/2005) SERIES X: DATA NETWORKS, OPEN SYSTEM COMMUNICATIONS AND SECURITY OSI applications Generic applications of ASN.1 Information technology Generic applications of ASN.1: Fast Web Services ITU-T Re

2、commendation X.892 ITU-T X-SERIES RECOMMENDATIONS DATA NETWORKS, OPEN SYSTEM COMMUNICATIONS AND SECURITY PUBLIC DATA NETWORKS Services and facilities X.1X.19 Interfaces X.20X.49 Transmission, signalling and switching X.50X.89 Network aspects X.90X.149 Maintenance X.150X.179 Administrative arrangemen

3、ts X.180X.199 OPEN SYSTEMS INTERCONNECTION Model and notation X.200X.209 Service definitions X.210X.219 Connection-mode protocol specifications X.220X.229 Connectionless-mode protocol specifications X.230X.239 PICS proformas X.240X.259 Protocol Identification X.260X.269 Security Protocols X.270X.279

4、 Layer Managed Objects X.280X.289 Conformance testing X.290X.299 INTERWORKING BETWEEN NETWORKS General X.300X.349 Satellite data transmission systems X.350X.369 IP-based networks X.370X.379 MESSAGE HANDLING SYSTEMS X.400X.499DIRECTORY X.500X.599 OSI NETWORKING AND SYSTEM ASPECTS Networking X.600X.62

5、9 Efficiency X.630X.639 Quality of service X.640X.649 Naming, Addressing and Registration X.650X.679 Abstract Syntax Notation One (ASN.1) X.680X.699 OSI MANAGEMENT Systems Management framework and architecture X.700X.709 Management Communication Service and Protocol X.710X.719 Structure of Managemen

6、t Information X.720X.729 Management functions and ODMA functions X.730X.799 SECURITY X.800X.849 OSI APPLICATIONS Commitment, Concurrency and Recovery X.850X.859 Transaction processing X.860X.879 Remote operations X.880X.889 Generic applications of ASN.1 X.890X.899 OPEN DISTRIBUTED PROCESSING X.900X.

7、999 TELECOMMUNICATION SECURITY X.1000 For further details, please refer to the list of ITU-T Recommendations. ITU-T Rec. X.892 (05/2005) i INTERNATIONAL STANDARD ISO/IEC 24824-2 ITU-T RECOMMENDATION X.892 Information technology Generic applications of ASN.1: Fast Web Services Summary This Recommenda

8、tion | International Standard specifies the messages required for Fast Web Services. It specifies ASN.1 SOAP messages which carry the same semantics as W3C SOAP messages. The exchange of ASN.1 SOAP messages provides Fast Web Services. This specification references other ASN.1 Recommendations | Inter

9、national Standards and the Web services specification W3C SOAP 1.2 to fully define application exchanges that use Web protocols and W3C SOAP functionality. This is an extension to the provision of Web services using W3C SOAP messages, without any change to the functionality of W3C SOAP and service d

10、escription languages. The main change is to the use of compact and easily-processed binary encodings of XML data, rather than character encodings. The use of this Recommendation | International Standard (with the ASN.1 SOAP messages encoded using the ASN.1 Packed Encoding Rules, PER) allows applicat

11、ions to provide Web services using messages that require less network bandwidth and less processing power (and hence provide a higher transaction processing rate) than use of the character encoding of XML data. This Recommendation | International Standard also specifies a Multipurpose Internet Mail

12、Extensions (MIME) media type that identifies an ASN.1 SOAP message encoded in PER. It also specifies a MIME media type that identifies a W3C SOAP message infoset encoded as a fast infoset document (see ITU-T Rec. X.891 | ISO/IEC 24824-1). Both of these MIME types are used by this Recommendation | In

13、ternational Standard. Source ITU-T Recommendation X.892 was approved on 14 May 2005 by ITU-T Study Group 17 (2005-2008) under the ITU-T Recommendation A.8 procedure. An identical text is also published as ISO/IEC 24824-2. ii ITU-T Rec. X.892 (05/2005) FOREWORD The International Telecommunication Uni

14、on (ITU) is the United Nations specialized agency in the field of telecommunications. The ITU Telecommunication Standardization Sector (ITU-T) is a permanent organ of ITU. ITU-T is responsible for studying technical, operating and tariff questions and issuing Recommendations on them with a view to s

15、tandardizing telecommunications on a worldwide basis. The World Telecommunication Standardization Assembly (WTSA), which meets every four years, establishes the topics for study by the ITU-T study groups which, in turn, produce Recommendations on these topics. The approval of ITU-T Recommendations i

16、s covered by the procedure laid down in WTSA Resolution 1. In some areas of information technology which fall within ITU-Ts purview, the necessary standards are prepared on a collaborative basis with ISO and IEC. NOTE In this Recommendation, the expression “Administration“ is used for conciseness to

17、 indicate both a telecommunication administration and a recognized operating agency. Compliance with this Recommendation is voluntary. However, the Recommendation may contain certain mandatory provisions (to ensure e.g. interoperability or applicability) and compliance with the Recommendation is ach

18、ieved when all of these mandatory provisions are met. The words “shall“ or some other obligatory language such as “must“ and the negative equivalents are used to express requirements. The use of such words does not suggest that compliance with the Recommendation is required of any party. INTELLECTUA

19、L PROPERTY RIGHTS ITU draws attention to the possibility that the practice or implementation of this Recommendation may involve the use of a claimed Intellectual Property Right. ITU takes no position concerning the evidence, validity or applicability of claimed Intellectual Property Rights, whether

20、asserted by ITU members or others outside of the Recommendation development process. As of the date of approval of this Recommendation, ITU had received notice of intellectual property, protected by patents, which may be required to implement this Recommendation. However, implementors are cautioned

21、that this may not represent the latest information and are therefore strongly urged to consult the TSB patent database. ITU 2005 All rights reserved. No part of this publication may be reproduced, by any means whatsoever, without the prior written permission of ITU. ITU-T Rec. X.892 (05/2005) iii CO

22、NTENTS Page 1 Scope . 1 2 Normative references 1 2.1 Identical Recommendations | International Standards . 1 2.2 Additional references. 2 3 Definitions 3 3.1 Imported definitions 3 3.2 Additional definitions 3 4 Abbreviations 4 5 Notation . 4 6 The processing of ASN.1 SOAP messages 5 7 Mapping compo

23、nents of the Envelope type to information items 7 7.1 General . 7 7.2 Mapping of the Header type 7 7.3 Mapping of the Body type 7 7.4 Mapping of the Fault type 7 7.5 Mapping of the Content type 9 8 Mapping W3C SOAP message infosets to abstract values of the Envelope type. 10 8.1 General . 10 8.2 Map

24、ping of a Header EII. 10 8.3 Mapping of a Body EII 11 8.4 Mapping of a Fault EII 11 8.5 Mapping of a content EII to a value of the Content type 12 9 Extended SOAP processing of embedded ASN.1 encoded values. 13 9.1 General . 13 9.2 Identifying the ASN.1 type of an embedded ASN.1 encoded value . 13 9

25、.3 Generating an ASN.1 value from an identified embedded ASN.1 encoded value . 14 9.4 Insertion of an ASN.1 value (with an identifier) into a W3C SOAP message. 14 9.5 The “ASN.1 type not identifiable“ fault . 15 10 ASN.1 SOAP HTTP Binding 16 10.1 HTTP media type 16 10.2 Behavior of responding SOAP n

26、odes 16 11 Fast infoset SOAP messages and the SOAP HTTP Binding 16 12 SOAP-oriented service descriptions supporting the ASN.1 SOAP interface binding. 17 12.1 General . 17 12.2 Schemas 17 12.3 Abstract interfaces and abstract operations . 17 12.4 Interface bindings and operation bindings 18 12.5 RPC

27、schema. 19 13 Use of SOAP-oriented service descriptions with ASN.1 SOAP interface bindings. 21 Annex A ASN.1 module for ASN.1 SOAP . 23 Annex B MIME media types for Fast Web Services . 25 B.1 The “application/fastsoap“ media type 25 B.2 The “application/soap+fastinfoset“ media type 26 Annex C Tutori

28、al on Fast Web Services. 28 C.1 Advantages of Fast Web Services. 28 C.2 Conceptual and optimized processing of ASN.1 SOAP messages . 29 C.3 Service descriptions. 32 iv ITU-T Rec. X.892 (05/2005) Page Annex D Common provision of services using Fast Web Services and XML Web services 34 D.1 Optimistic

29、strategy 34 D.2 Pessimistic strategy . 34 Annex E SOAP-oriented service description in WSDL 1.1 36 E.1 SOAP-oriented service descriptions expressed in WSDL 1.1 . 36 E.2 Schema . 36 E.3 Abstract interface and abstract operations 36 E.4 Interface bindings and operation bindings 37 Annex F Assignment o

30、f object identifier values. 40 BIBLIOGRAPHY 41 ITU-T Rec. X.892 (05/2005) v Introduction This Recommendation | International Standard specifies the use of ASN.1 (see ITU-T Rec. X.680 | ISO/IEC 8824-1), its Packed Encoding Rules (see ITU-T Rec. X.691 | ISO/IEC 8825-2) and Fast Infoset (see ITU-T Rec.

31、 X.891 | ISO/IEC 24824-1) to provide Fast Web Services. (For a general tutorial on Fast Web Services, see Annex C). Clause 6 specifies the architectural model and the conceptual steps of producing and processing SOAP messages encoded using ASN.1 binary encodings (called “ASN.1 SOAP messages“). Claus

32、es 7 to 9 contain general provisions for the processing of ASN.1 SOAP messages. Clause 7 specifies the mapping of ASN.1 SOAP messages to W3C SOAP messages. Clause 8 specifies the mapping of W3C SOAP messages to ASN.1 SOAP messages. Clause 9 specifies the extended SOAP processing model for processing

33、 embedded ASN.1 encoded values present in W3C SOAP messages. Clause 10 specifies the ASN.1 SOAP HTTP Binding for the transfer of ASN.1 SOAP messages using HTTP as the transport protocol. This binding uses the Multipurpose Internet Mail Extensions (MIME) media type specified in B.1. Clause 11 specifi

34、es the use of the W3C SOAP HTTP Binding for the transfer of W3C SOAP messages encoded as fast infoset documents (fast infoset SOAP messages). This binding uses the Multipurpose Internet Mail Extensions (MIME) media type specified in B.2. Clause 12 specifies SOAP-oriented service descriptions that su

35、pport the ASN.1 SOAP binding interface and Fast Web Services. Clause 13 specifies how a SOAP-oriented service description affects the exchange of ASN.1 SOAP messages that are mapped to and from W3C SOAP messages. Annex A forms an integral part of this Recommendation | International Standard, and con

36、tains the full ASN.1 module for ASN.1 SOAP. Annex B forms an integral part of this Recommendation | International Standard, and contains the specification of the “application/fastsoap“ and “application/soap+fastinfoset“ media types. Annex C does not form an integral part of this Recommendation | Int

37、ernational Standard, and provides tutorial material on Fast Web Services. Annex D does not form an integral part of this Recommendation | International Standard, and provides tutorial material on the interoperation of Fast Web Services and XML Web services using features of the ASN.1 SOAP HTTP Bindi

38、ng. Annex E does not form an integral part of this Recommendation | International Standard, and shows how the exchange of ASN.1 SOAP messages can be described by WSDL 1.1 2 service descriptions. ISO/IEC 24824-2:2005 (E) ITU-T Rec. X.892 (05/2005) 1 INTERNATIONAL STANDARD ITU-T RECOMMENDATION Informa

39、tion technology Generic applications of ASN.1: Fast Web Services 1 Scope This Recommendation | International Standard specifies the messages and encodings that enable the use of Fast Web Services, together with the means of description of such services. The protocol used to support these services sa

40、tisfies the requirements of the SOAP processing model (see W3C SOAP Part 1, clause 2) and is based on the transfer of: a) ASN.1 SOAP messages that contain embedded ASN.1 encoded values and embedded fast infoset documents; and b) fast infoset SOAP messages. This Recommendation | International Standar

41、d also specifies: an ASN.1 module for ASN.1 SOAP that defines the Envelope type (a value of this type corresponds to an ASN.1 SOAP message); a conceptual mapping between ASN.1 SOAP messages and W3C SOAP messages (defined as an instance of the XML Infoset, see W3C SOAP Part 1, clause 5); an extension

42、 to the W3C SOAP processing model for the processing of embedded ASN.1 encoded values; the ASN.1 SOAP HTTP Binding, which is a modification and extension of the W3C SOAP HTTP Binding (see W3C SOAP Part 2, clause 7), for the transfer of ASN.1 SOAP messages; support for the transfer of W3C SOAP messag

43、e infosets serialized as fast infoset documents (fast infoset SOAP messages) using the W3C SOAP HTTP Binding (see W3C SOAP Part 2, clause 7); SOAP-oriented service descriptions that define the interface to and the semantics of Fast Web Services. Two Multipurpose Internet Mail Extensions (MIME) media

44、 type names are allocated to identify: ASN.1 SOAP messages encoded using Basic Aligned PER; fast infoset SOAP messages. 2 Normative references The following Recommendations and International Standards contain provisions which, through reference in this text, constitute provisions of this Recommendat

45、ion | International Standard. At the time of publication, the editions indicated were valid. All Recommendations and Standards are subject to revision, and parties to agreements based on this Recommendation | International Standard are encouraged to investigate the possibility of applying the most r

46、ecent edition of the Recommendations and Standards listed below. Members of IEC and ISO maintain registers of currently valid International Standards. The Telecommunication Standardization Bureau of the ITU maintains a list of currently valid ITU-T Recommendations. The IETF maintains a list of RFCs,

47、 together with those that have been obsoleted by later RFCs. The reference to a document within this Recommendation | International Standard does not give it, as a stand-alone document, the status of a Recommendation or International Standard. 2.1 Identical Recommendations | International Standards

48、ITU-T Recommendation X.660 (2004) | ISO/IEC 9834-1:2005, Information technology Open Systems Interconnection Procedures for the operation of OSI Registration Authorities: General procedures and top arcs of the ASN.1 Object Identifier tree. ITU-T Recommendation X.680 (2002) | ISO/IEC 8824-1:2002, Inf

49、ormation technology Abstract Syntax Notation One (ASN.1): Specification of basic notation. ISO/IEC 24824-2:2005 (E) 2 ITU-T Rec. X.892 (05/2005) ITU-T Recommendation X.681 (2002) | ISO/IEC 8824-2:2002, Information technology Abstract Syntax Notation One (ASN.1): Information object specification. ITU-T Recommendation X.682 (2002) | ISO/IEC 8824-3:2002, Information technology Abstract Syntax Notation One (ASN.1): Constraint specification. ITU-T Recommendation X.683 (2002) | ISO/IEC 8824-4:2002, Inf