[SR-Users] UAC, parsing auth header failed

[Iñaki Baz Castillo]

2010/6/18 Stefan Sayer <stefan.sayer at googlemail.com>:

> but is that also true if the "Digest" appears as is in the ABNF?
>
> just curious

Yes, there is no special reason for it.


RFC 3261 - 25.1
-------------------------
   Many SIP header field values consist of words separated by LWS or
   special characters.  Unless otherwise stated, tokens are case-
   insensitive.
-------------------------


As all we know the schema in a SIP/SIPS URI is case insensitive
("sip:" == "SIP:"):

  SIP-URI          =  "sip:" [ userinfo ] hostport
                      uri-parameters [ headers ]


However SIP methods are case sensitive ("INVITE" != "invite"):

  INVITEm           =  %x49.4E.56.49.54.45 ; INVITE in caps


So *any* string appearing in SIP BNF (as "Digest", "MD5", "tag"....)
are case insensitive.




PS:

/Ragel-SIP-Parser/sip_parser.sh Authorization 'Authorization: DIGEST
username="Alice", realm="atlanta.com",
nonce="84a4cc6f3082121f32b42a2187831a9e",
response="7587245234b3434cc3412213e5f113a5"'

OK


;)



-- 
Iñaki Baz Castillo
<ibc at aliax.net>