Network Working Group C. Bormann Internet-Draft Universitaet Bremen TZI Updates: 6455 (if approved) May 11, 2017 Intended status: Standards Track Expires: November 12, 2017 Well-known URIs for the WebSocket Protocol draft-bormann-hybi-ws-wk-00 Abstract RFC 5785 defines a path prefix, "/.well-known/", that can be used by well-known URIs, specifically for the "http" and "https" URI schemes. The present memo formally updates RFC 6455, which defines the URI schemes defined for the WebSocket Protocol, to extend the use of these well-known URIs to those URI schemes. 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 November 12, 2017. Copyright Notice Copyright (c) 2017 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 Bormann Expires November 12, 2017 [Page 1] Internet-Draft Well-known URIs for the WebSocket Protocol May 2017 the Trust Legal Provisions and are provided without warranty as described in the Simplified BSD License. Table of Contents 1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 2 2. IANA considerations . . . . . . . . . . . . . . . . . . . . . 2 3. Security considerations . . . . . . . . . . . . . . . . . . . 2 4. References . . . . . . . . . . . . . . . . . . . . . . . . . 3 4.1. Normative References . . . . . . . . . . . . . . . . . . 3 4.2. Informative References . . . . . . . . . . . . . . . . . 3 Acknowledgements . . . . . . . . . . . . . . . . . . . . . . . . 3 Author's Address . . . . . . . . . . . . . . . . . . . . . . . . 3 1. Introduction [RFC5785] defines a path prefix, "/.well-known", that can be used by well-known URIs, as well as an IANA registry for URI suffixes to be used with this path prefix for forming well-known URIs. In [RFC5785], this mechanism is specifically defined for the "http" and "https" URI schemes (now defined in [RFC7230]). Other URI schemes such as "coap" and "coaps" [RFC7252] have since picked up this mechanism, sharing the registry of URI suffixes with that for HTTP(S). [RFC6455], which defines the URI schemes defined for the WebSocket Protocol, "ws" and "wss", does not define the use of well-known URIs for these URI schemes. The present memo formally updates [RFC6455], to extend the use of [RFC5785] well-known URIs to the URI schemes "ws" and "wss". Well-known URIs for "ws" and "wss" share the registry for URI suffixes established by [RFC5785]; no change is necessicated by the present memo in the registry or its IANA considerations. 2. IANA considerations This memo does not require any IANA actions. 3. Security considerations The Security Considerations of [RFC5785] apply and need to be considered for all well-known URIs. It has always been possible to form "ws" and "wss" URIs in such a way that they map to well-known HTTP(S) URIs when using the procedure in Bormann Expires November 12, 2017 [Page 2] Internet-Draft Well-known URIs for the WebSocket Protocol May 2017 Section 4 of [RFC6455], so no new security considerations about this are created by now formally making the well-known URI mechanism available for "ws" and "wss", as well. However, with well-known URIs becoming available for the WebSocket protocol, applications that want to define well-known URI suffixes specifically for WebSocket use also need to consider whether the resources becoming available under the equivalent HTTP(S) URI formed by Section 4 of [RFC6455] pose any information disclosure or other security considerations. 4. References 4.1. Normative References [RFC5785] Nottingham, M. and E. Hammer-Lahav, "Defining Well-Known Uniform Resource Identifiers (URIs)", RFC 5785, DOI 10.17487/RFC5785, April 2010, . [RFC6455] Fette, I. and A. Melnikov, "The WebSocket Protocol", RFC 6455, DOI 10.17487/RFC6455, December 2011, . 4.2. Informative References [RFC7230] Fielding, R., Ed. and J. Reschke, Ed., "Hypertext Transfer Protocol (HTTP/1.1): Message Syntax and Routing", RFC 7230, DOI 10.17487/RFC7230, June 2014, . [RFC7252] Shelby, Z., Hartke, K., and C. Bormann, "The Constrained Application Protocol (CoAP)", RFC 7252, DOI 10.17487/RFC7252, June 2014, . Acknowledgements Author's Address Carsten Bormann Universitaet Bremen TZI Postfach 330440 Bremen D-28359 Germany Phone: +49-421-218-63921 Email: cabo@tzi.org Bormann Expires November 12, 2017 [Page 3]