Network Working Group L. Romary Internet-Draft TEI Consortium and INRIA Intended status: Standards Track S. Lundberg Expires: April 22, 2011 The Royal Library, Copenhagen October 19, 2010 The 'application/tei+xml' mediatype draft-lundberg-app-tei-xml-04 Abstract This document defines the 'application/tei+xml' media type for markup languages defined in accordance with the Text Encoding and Interchange guidelines Status of this Memo This Internet-Draft is submitted in full conformance with the provisions of BCP 78 and BCP 79. Internet-Drafts are working documents of the Internet Engineering Task Force (IETF). Note that other groups may also distribute working documents as Internet-Drafts. The list of current Internet- Drafts is at http://datatracker.ietf.org/drafts/current/. Internet-Drafts are draft documents valid for a maximum of six months and may be updated, replaced, or obsoleted by other documents at any time. It is inappropriate to use Internet-Drafts as reference material or to cite them other than as "work in progress." This Internet-Draft will expire on April 22, 2011. Copyright Notice Copyright (c) 2010 IETF Trust and the persons identified as the document authors. All rights reserved. This document is subject to BCP 78 and the IETF Trust's Legal Provisions Relating to IETF Documents (http://trustee.ietf.org/license-info) in effect on the date of publication of this document. Please review these documents carefully, as they describe your rights and restrictions with respect to this document. Code Components extracted from this document must include Simplified BSD License text as described in Section 4.e of the Trust Legal Provisions and are provided without warranty as described in the Simplified BSD License. Romary & Lundberg Expires April 22, 2011 [Page 1] Internet-Draft The 'application/tei+xml' mediatype October 2010 Table of Contents 1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . 3 2. Recognizing TEI files . . . . . . . . . . . . . . . . . . . . 4 3. Fragment identifier . . . . . . . . . . . . . . . . . . . . . 6 4. Security considerations . . . . . . . . . . . . . . . . . . . 7 4.1. Harmful content . . . . . . . . . . . . . . . . . . . . . 7 4.2. Intellectual Property Rights . . . . . . . . . . . . . . . 7 4.3. Authenticity and confidentiality . . . . . . . . . . . . . 7 5. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 9 5.1. Registration of MIME type 'application/tei+xml' . . . . . 9 6. References . . . . . . . . . . . . . . . . . . . . . . . . . . 11 6.1. Normative References . . . . . . . . . . . . . . . . . . . 11 6.2. Informative References . . . . . . . . . . . . . . . . . . 11 Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . . 12 Romary & Lundberg Expires April 22, 2011 [Page 2] Internet-Draft The 'application/tei+xml' mediatype October 2010 1. Introduction Text Encoding and Interchange (TEI) is an international and interdisciplinary standard that is widely used by libraries, museums, publishers, and individual scholars to represent all kinds of textual material for online research and teaching.[TEI] This document defines the 'application/tei+xml' media type in accordance with [RFC3023] in order enable generic XML processing of TEI documents on the Internet. Romary & Lundberg Expires April 22, 2011 [Page 3] Internet-Draft The 'application/tei+xml' mediatype October 2010 2. Recognizing TEI files TEI files are XML documents or fragments having the root element in a TEI namespace. TEI namespace URIs start with http://www.tei-c.org/ns/ followed by the version number of the namespace. The current namespace is http://www.tei-c.org/ns/1.0 In general, a [TEI] file usually contains either of the strings ". The teiCorpus documents give the possibility to bundle multiple documents into a single file. Examples: A document beginning with ... ... A document beginning with ... ... ... ... second document ... ... third document ... Romary & Lundberg Expires April 22, 2011 [Page 5] Internet-Draft The 'application/tei+xml' mediatype October 2010 3. Fragment identifier Documents having the media type 'application/tei+xml', use the fragment identifier notation as specified in [RFC3023] for the media type 'application/xml'. Romary & Lundberg Expires April 22, 2011 [Page 6] Internet-Draft The 'application/tei+xml' mediatype October 2010 4. Security considerations An XML resource does not in itself compromise data security. When being available on a network simply through the dereferencing of an IRI [RFC3987] or a URI, care must be taken to properly interpret the data to prevent unintended access. Hence the security issues of [RFC3986], section 7, apply. In addition, as this media type uses the "+xml" convention, it shares the same security considerations as described in RFC 3023 [RFC3023], section 10. 4.1. Harmful content Any application accepting submitted or retrieving TEI XML for processing has to be aware of risks connected with injection of harmful scripts and executable XML. Even common XML inclusion or the use of external entities, could potentially be used to reveal aspects of a service that may compromise its security. Any vulnerability of these kinds are, however, application specific. The TEI namespaces do not contain such elements. 4.2. Intellectual Property Rights TEI documents often arise in digitization of cultural heritage materials. Texts made accessible in TEI format may be unrestricted in the sense that there are no restrictions to their distribution through Digital Rights Management[DRM] or Intellectual Property Rights[IPR] constraints. TEI documents are heterogeneous objects. Some parts of a document may be unrestricted, whereas other parts, such as editorial text and annotations may be written much later may hence be subject to DRM restrictions. The TEI format provides means for highly granular attribution, down to the content of individual XML elements. Software agents participating in the exchange or processing TEI must honour markup of this kind. Even when there are no IPR constraints, intellectual property attribution alone requires that document users are able to tell the difference between content from different sources. 4.3. Authenticity and confidentiality Historical archival records are often encoded in TEI and legal document may be binding centuries after they were written. Digitization and encoding of legal texts may require technologies for assuring authenticity, such as cryptographic check sums and electronic signatures. Similarly, historical documents may in part or in their entirety be confidential. This may be required by law or by the terms and Romary & Lundberg Expires April 22, 2011 [Page 7] Internet-Draft The 'application/tei+xml' mediatype October 2010 conditions such as in the case of donated or deposited text from private sources. A text archive may need content filtering or cryptographic technologies to meet such requirements. Romary & Lundberg Expires April 22, 2011 [Page 8] Internet-Draft The 'application/tei+xml' mediatype October 2010 5. IANA Considerations 5.1. Registration of MIME type 'application/tei+xml' MIME media type name: application MIME subtype name: tei+xml Required parameters: None Optional parameters: charset the parameter has identical semantics to the charset parameter of the "application/xml" media type as specified in RFC 3023 [RFC3023]. Encoding considerations: Identical to those for 'application/xml'. See RFC 3023 [RFC3023], Section 3.2. Security considerations: See Security considerations (Section 4) in this specification. Interoperability considerations: TEI documents often have the extension '.xml', which is not uncommon for other XML document formats. Published specification: This media type registration is for TEI documents[TEI] as described in this document. Applications which use this media type: There are currently no known applications using the media type 'application/tei+xml'. Additional information: Magic number(s): There is no single initial octet sequence that is always present in TEI documents. Romary & Lundberg Expires April 22, 2011 [Page 9] Internet-Draft The 'application/tei+xml' mediatype October 2010 file extension(s): Common extensions are '.tei', '.teiCorpus' and '.odd'. Macintosh File Type Code(s) TEXT Object Identifier(s) or OID(s) Not applicable Romary & Lundberg Expires April 22, 2011 [Page 10] Internet-Draft The 'application/tei+xml' mediatype October 2010 6. References 6.1. Normative References [RFC3023] Murata, M., St. Laurent, S., and D. Kohn, "XML Media Types", RFC 3023, January 2001. [RFC3986] Berners-Lee, T., Fielding, R., and L. Masinter, "Uniform Resource Identifier (URI): Generic Syntax", STD 66, RFC 3986, January 2005. [TEI] "TEI Guidelines", . 6.2. Informative References [DRM] "Digital rights management", . [IPR] "Intellectual property", . [RFC3987] Duerst, M. and M. Suignard, "Internationalized Resource Identifiers (IRIs)", RFC 3987, January 2005. Romary & Lundberg Expires April 22, 2011 [Page 11] Internet-Draft The 'application/tei+xml' mediatype October 2010 Authors' Addresses Laurent Romary TEI Consortium and INRIA Email: laurent.romary@inria.fr URI: http://www.tei-c.org/ Sigfrid Lundberg The Royal Library, Copenhagen Postbox 2149 1016 Koebenhavn K Denmark Email: slu@kb.dk URI: http://sigfrid-lundberg.se/ Romary & Lundberg Expires April 22, 2011 [Page 12]