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Re: [apps-discuss] Review of draft-ietf-appsawg-json-pointer

"Manger, James H" <James.H.Manger@team.telstra.com> Fri, 16 November 2012 03:56 UTC

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From: "Manger, James H" <James.H.Manger@team.telstra.com>
To: Paul Hoffman <paul.hoffman@vpnc.org>, "apps-discuss@ietf.org Discuss" <apps-discuss@ietf.org>
Date: Fri, 16 Nov 2012 14:56:04 +1100
Thread-Topic: [apps-discuss] Review of draft-ietf-appsawg-json-pointer
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Subject: Re: [apps-discuss] Review of draft-ietf-appsawg-json-pointer
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> - One of the security considerations is too limited.
>    Note that JSON pointers can contain the NUL (Unicode U+0000)
>    character, which may not be representable in all programming
>    languages.
> The same is true for all control characters, and for some programming
> languages, all non-ASCII characters. Proposed rewording:
>    Note that JSON pointers can contain the NUL (Unicode U+0000)
>    character, control characters, non-ASCII characters, and so
>    on. These characters may not be representable in all programming
>    languages.

The issue with NUL is that you need to be careful not to misinterpret it as an end-of-string marker. How about:

   Note that JSON pointers can contain the NUL (Unicode U+0000)
   character. Care is needed not to misinterpret this character
   in programming languages that use NUL to mark the end of a string.


And a reminder that there was one other just-before-WGLC comment: disallowing unnecessary leading 0's (eg allow /7, but not /007, to point into an array).

--
James Manger

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