[Users] textops regular expression matching = subst to replace from field

[Bogdan-Andrei Iancu]

Hi Neill,

NEILL WILKINSON wrote:

> Bogdan,
>  
> thnx for the reply. I'll take a look at the UAC module.
>  
> Correct me please, if am wrong, but to achieve 3rd Party registration, 
> the To: field matches the AoR (e.g. boss at company.com 
> <mailto:boss at company.com>), request URI matches the registrar server 
> I'm sending the message to, and the From field is (basically) who is 
> registering the message, for 3rd party registration this could be for 
> example secretary at company.com <mailto:secretary at company.com>

that's correct

> If in openser I get a register message - at this point correctly 
> intended for the server, I want to "artificially" rewrite the message 
> to send on to another registrar, but with the From field populated 
> with a psuedo URI. Then I need to modify the REGISTER to contain the 
> registrar address I'm "forwarding" to, the From field to my psuedo 3rd 
> party and the rest of the header remains the same.
>  
> When the registrar I'm forwarding to receives the message it will 
> import the AoR from the To: field and the contact information.
>  
> Vola - 3rd party registration?

sound reasonable but you should be sure that the server accept 3rd party 
registration. Also if authentication is required, the new FROM will be 
challenged....

>  
> I know this sounds painful - but I'm trying to acheive something 
> pretty painful too! :o)
>  
> uac_replace_from () looks to be what you're suggesting?

yes - see http://openser.org/docs/modules/1.1.x/uac.html#AEN108
to "reduce the pain", you may set the "from_restore_mode" to "auto" ;)

regards,
bogdan

>  
> Regards,
>  
> Neill.....;o)
> */Bogdan-Andrei Iancu <bogdan at voice-system.ro>/* wrote:
>
>     Hi Neill,
>
>     there are two issues with what you are trying to do:
>     1) for REGISTER the TO hdr is used to identify the hdr and not FROM
>     2) if you change TO or FROM hdrs you may broke transaction matching
>     for replies on the UAC.
>
>     BTW, for proper FROM changing, look at the UAC module
>
>     regards,
>     bogdan
>
>     Neill Wilkinson wrote:
>
>     >Hi all,
>     >
>     >Looking to get a way to replace the From field in a REGISTER
>     message to the
>     >forward on to another Registrar, as a third party registration
>     >
>     >I've tried something along the lines of:
>     >
>     >If (subs("/(^From:)([ ]*)/\1 sip:newaddress at new.server/I"))
>     > log(1,"Match!\n");
>     >else
>     > log(1,"No match\n");
>     >
>     >I basically need help with the Regex syntax and a good means of
>     checking -
>     >is egrep or sed a good means of testing?
>     >
>     >Thanks.....
>     >
>     >Neill...;o)
>     >
>     >
>     >
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