On Thu, Apr 2, 2009 at 11:46 PM, Alexei Kuznetsov <eofster at gmail.com> wrote:
> Hi,
>
> Some SIP phones produce Contact like "user at domain@x.x.x.x". pjsip fails to
> parse such headers:
>
> 17:24:24.363 sip_transport. Error processing 800 bytes packet from UDP
> 10.0.0.1:5060 : PJSIP syntax error exception when parsing '' header on
> line 11 col 36:
> SIP/2.0 200 OK
> Via: SIP/2.0/UDP 10.0.0.24:55187;rport=55187;branch=111
> From: "John Smith" <sip:john@xxxxxxxxxxx <sip%3Ajohn at example.com>>;tag=222
> To: "John Smith" <sip:john at example.com <sip%3Ajohn at example.com>>;tag=333
> Call-ID: 444
> CSeq: 555 REGISTER
> Expires: 300
> Contact: <sip:john at 10.0.0.24:55187>;expires=300
> Contact: <sip:john at 10.0.0.24:55175>;expires=139
> Contact: <sip:john at 10.0.0.24:55134>;expires=4
> Contact: <sip:john at example.com <sip%3Ajohn at example.com>@10.0.0.41:5070
> >;q=0.90;expires=31
>
>
That's not valid according to the spec. Character "@" is not allowed in the
user part of URI, so it should have been escaped. FYI
SIP-URI = "sip:" [ userinfo ] hostport
uri-parameters [ headers ]
userinfo = ( user / telephone-subscriber ) [ ":" password ] "@"
user = 1*( unreserved / escaped / user-unreserved )
user-unreserved = "&" / "=" / "+" / "$" / "," / ";" / "?" / "/"
unreserved = alphanum / mark
mark = "-" / "_" / "." / "!" / "~" / "*" / "'"
/ "(" / ")"
cheers
Benny
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