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For more information, please see the FAQ at < http://wiki.tools.ietf.org/area/gen/trac/wiki/GenArtfaq >. Document: draft-ietf-httpauth-extension-08 Reviewer: Matthew A. Miller Review Date: 2016-08-31 IETF LC End Date: 2016-08-26 IESG Telechat date: 2016-09-01 Summary: This document is almost ready for publication as an Experimental RFC, once the minor and editorial issues are addressed. Major issues: NONE Minor issues: * There is at least a couple of mentions of the "Authentication-Info" header, but no reference to RFC 7615 in which it is defined. I think an informational reference is warranted here. * Just reading sections 4.5. "Location-when-logout parameter" and 4.6. "Logout-timeout parameter", it is unclear how these are meant to interact to inform a client the user's authentication session. Frankly, I think the text in section 4.5 is too vague about how a client can detect termination of a user's authenticated session, and could use more of a hint on how "logout-timeout" is involved to accomplish it. At the least, I think both sections 4.5. and 4.6. need pointers to section 5. to help readers get a sense of how to apply them. * In section 4.7. "Username parameter", I think there should be an explicit pointer to the Security Considerations to warn about potential issues this parameter presents. I also recommend separating that portion of the Security Considerations about "username" into its own subsection to make such a callout better. * Since this document is acknowledging that cookies are used for authentication, and Nits/editorial comments: * In section 2.1. "Terms for describing authentication protocol flow", the word "distinguishable" should instead be "distinguished" in the phrase "it can't be distinguishable from a non-authenticated response." * In section 3. "Optional Authentication", the word "be" is missing in "Optional-WWW-Authenticate header MUST NOT sent on 401 responses". * In section 3.1. "Note on Optional-WWW-Authenticate and use of WWW-Authenticate header with non-401 status", the word "is" should be replaced with "are" in the phrase "clients which is unaware of this extension will ignore the header". * Also in section 3.1., the word "authentications" should be "authentication" in the phrase "secondary fallback method of authentications". * Also in section 3.1., the word "ignores" should be "ignore" in the phrase "just ignores the WWW-Authenticate headers". * Also in section 3.1., all instances of the word "implementer" should be replaced with "implementers" in the phrase "the authors propose implementer of the standard HTTP/1.1 specification (especially implementer of this extension)". * In section 4. "Authentication-Control header", the word "an" should be "a" in the phrase "and MUST be sent in an plain". * In section 4.1. "Non-ASCII extended header parameters", the interoperability note as a number of grammatical challenges. I believe the following addresses the grammar issues while retaining its meaning: """ Interoperability note: [RFC7235], Section 2.2, defines the "realm" authentication parameter which cannot be replaced by the "realm*" extend parameter. It means that the use of non-ASCII values for an authentication realm is not the defined behavior in HTTP. Unfortunately, some people currently use a non-ASCII realm parameter in reality, but even its encoding scheme is not well-defined. Given this background, this document does not specify how to handle a non-ASCII "realm" parameter in the extended header fields. If needed, the authors propose to use a non-extended "realm" parameter form, with a wish for maximum interoperability. """ * In section 4.2. "Auth-style parameter", the word "preferences" should be replaced with "preference" in the phrase "server's preferences for user interface behavior". * In section .4.4. "No-auth parameter", the word "authentications" should be replaced with "authentication" in the phrase "content is desired before authentications". * In section 4.6. "Logout-timeout parameter", the word "from" should be removed in the phrase "has passed since from the time this header was received". * In section 5.3. "When to use Cookies", the first sentence has some grammatical challenges, which I believe the following text addresses: """ In current Web sites using form-based authentication, Cookies [RFC6265] are used for managing both authorization and application sessions. """ * In section 5.4. "Parallel deployment with Form/Cookie authentications", the META tag example should be "<META http-equiv="refresh" ...>" instead of ">META http-equiv="refresh" ...<". * In section 7. "IANA Considerations", the word "documents" should be "document" in the phrase "a publicly-accessible documents".
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