Re: Case sensitivity of SPF results in SPF Received

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

Scott Kitterman wrote:
> The ABNF for Received SPF shows the results with an initial capital
> letter:
>
> http://www.openspf.org/RFC_4408#header-field
>
> result           = "Pass" / "Fail" / "SoftFail" / "Neutral" /
>                    "None" / "TempError" / "PermError"
>
> Is that case sensitive?  Pyspf currently returns all lower case and I'm
> wondering if that's a bug?

<http://www.openspf.org/RFC_4408#abnf>:

| See RFC 4234 for ABNF notation. Please note that as per this ABNF
| definition, literal text strings (those in quotes) are case-insensitive.

RFC 4234, "2.3. Terminal Values":

| 2.3.  Terminal Values
|
| [...]
| 
|    ABNF permits the specification of literal text strings directly,
|    enclosed in quotation-marks.  Hence:
|          command     =  "command string"
| 
|    Literal text strings are interpreted as a concatenated set of
|    printable characters.
| 
|    NOTE:
|       ABNF strings are case-insensitive and the character set for these
|       strings is us-ascii.
| 
|    Hence:
|          rulename = "abc"
|    and:
|          rulename = "aBc"
|    will match "abc", "Abc", "aBc", "abC", "ABc", "aBC", "AbC", and
|    "ABC".
| 
|       To specify a rule that IS case SENSITIVE, specify the characters
|       individually.
| 
|    For example:
|          rulename    =  %d97 %d98 %d99
|    or
|          rulename    =  %d97.98.99
|    will match only the string that comprises only the lowercased
|    characters, abc.

Scott Kitterman wrote:
> Some of the applications that use the pyspf library expect lower case,
> so any changes will need to be handled with care.

Then they are in error.

-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.6 (GNU/Linux)

iD8DBQFGbwslwL7PKlBZWjsRAiIJAJ98dCsfegX8j1HGZ0nVM0poQWhlvgCdEler
C0SRbBKWwpVOCGitaReYWRo=
=icEf
-----END PGP SIGNATURE-----

-------------------------------------------
-----------------------------------------------------------------------
To unsubscribe, change your address, or temporarily deactivate your
subscription,
please go to http://v2.listbox.com/member/?member_id=6959932&user_secret=62b4c45f
Powered by Listbox: http://www.listbox.com