[Serusers] loose_route behaviour, detecting single Route with myself

[Greger V. Teigre]

If there's a single Route header pointing to itself, then this is a good 
indication that a UA added a Route to your proxy as an outbound proxy.
If SER correctly identities the uri as itself, it should AFAIK return false.
Could you please turn on debugging and then look for loose_route and 
after_loose debug messages in the logs and post them?
g-)

JF wrote:
> Hi all,
>
> When SER receives an INVITE with a single Route header pointing to
> itself, it's supposed to delete it and process the message as if no
> Route header was there in the first place. This is what RFC3261
> mandates, right?
>
> But currently the loose_route function returns true to the script in
> this case, just like when more Route headers are present.
>
> So I have some routing logic for when no Route headers are present,
> and if I want to apply the same routing logic to the case when there
> is a single Route header pointing to myself (naturally, as it's the
> same as if no Route header was present), I currently have to replicate
> the same routing logic inside the if (loose_route())...
>
> Or is there an other way? Do I have to develop my own module function
> or use some regexp search from the script to detect if there are more
> Routes besides myself before I call loose_route?
>
> The best would be to change loose_route to return false and just
> remove the Route header pointing to myself when there are no more
> Route headers in the message... what do you think?
>
> JF
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