[SR-Users] path uri problem

Spencer Thomason spencer at 5ninesolutions.com
Wed Apr 10 01:15:03 CEST 2013


Although slightly off topic, I've been trying to craft a Path header that will work with FreeSWITCH. 

See:
http://jira.freeswitch.org/browse/FS-4989

It would be great if the Path header was compatible with what they want as well.

BR,
Spencer

On Apr 9, 2013, at 4:05 PM, Iñaki Baz Castillo wrote:

> 2013/4/9 Richard Fuchs <rfuchs at sipwise.com>:
>> On 04/09/13 12:19, Iñaki Baz Castillo wrote:
>> 
>>> So the "received" value added by Kamailio is invalid. Such a value
>>> cannot be the value of a SIP URI parameter at all. I strongly propose
>>> encoding it in base64 or escaping the "=" and the ";" symbols when in
>>> a SIP URI param value as Juha suggests.
>> 
>> Would you and everyone else agree that unconditionally encoding the
>> param in base64 would be the preferred solution? I have some pending
>> additions to the path module and could include that as well.
> 
> 
> No. SIP already requires hex-(un)escaping in various places (i.e. the
> Replaces header requires it, a URI username could require it, etc), so
> it's expected that SIP libraries/clients/servers already include
> hex-(un)escaping support.
> 
> In the other side I don't remember any place in core SIP protocol in
> which Base64 is used, neither I know wheter Kamailio has built-in code
> for it or not (well, it's an easy addition anyhow...).
> 
> IMHO using the SIP core mechanisms for these kinds of needs (thus
> hex-(un)escaping) is the correct choice, but since the ;received URI
> param is a non standard hack which just Kamailio needs and
> understands, it can be done in any way.
> 
> Regards.
> 
> --
> Iñaki Baz Castillo
> <ibc at aliax.net>
> 
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