Redirecting to Sipp Users.
Thanks
Pratap nath
---------- Forwarded message ----------
From: Pratap Nath <[email protected]>
Date: Wed, Feb 4, 2009 at 10:40 AM
Subject: Re: [Sipp-users] How to extract the second the second string from
the VIA: header
To: Charles P Wright <[email protected]>
Thanks Charles for your guidance ,
I have successfully extract the Via parameter by using the below mentioned
formula .
Thanks& regards
Pratap Nath
On Mon, Feb 2, 2009 at 10:07 PM, Charles P Wright <[email protected]>wrote:
> You need to have parenthesis to capture just the part after the comma.
> Something like.
>
> <ereg regexp=",(foo)" assign_to="dummy,foovalue" />
>
> Charles
>
>
>
>
> Pratap Nath <[email protected]>
> 02/02/2009 08:43 AM
>
> To
> [email protected]
> cc
>
> Subject
> [Sipp-users] How to extract the second the second string from the VIA:
> header
>
>
>
>
>
>
> HI All,
>
> I was simulating a conference scenario with Sipp. The Switch sends me a
> update message with following Information.
>
> UPDATE sip:[email protected]:64478;transport=tcp SIP/2.0
>
> Call-ID: [email protected]
>
> CSeq: 2 UPDATE
>
> From: sip:[email protected] <sip%[email protected]>
> ;tag=8038c7bbbebdd17a3497b5ad100
>
> To: sip:[email protected] <sip%[email protected]>
> ;tag=-2cee5336498317ae-c_F148.147.171.54
>
> Via: SIP/2.0/TCP
> 148.147.171.28:5060;branch=z9hG4bK83138303530393F5334001b.0,SIP/2.0/TLS
> 148.147.171.28:6001
> ;psrrposn=1;received=148.147.171.28;branch=z9hG4bK809229ebbebdd1893497b5ad100
>
> Content-Length: 0
>
> Contact: " CONFERENCE 2" <sip:148.147.171.28:6001;transport=tls>;isfocus
>
> Max-Forwards: 69
>
> User-Agent: Avaya CM/R015x.01.2.416.4
>
> Allow:
> INVITE,CANCEL,BYE,ACK,PRACK,SUBSCRIBE,NOTIFY,REFER,OPTIONS,INFO,PUBLISH
>
> Supported: 100rel,timer,replaces,join,histinfo
>
> Min-SE: 180
>
> Session-Expires: 180;refresher=uac
>
> Record-Route: <sip:148.147.171.28:5060;transport=tcp;lr>
>
>
> Correct response .
> ================
> SIP/2.0 200 OK
>
> From: sip:[email protected] <sip%[email protected]>
> ;tag=8038c7bbbebdd17a3497b5ad100
>
> To: sip:[email protected] <sip%[email protected]>
> ;tag=-2cee5336498317ae-c_F148.147.171.54
>
> Call-ID: [email protected]
>
> CSeq: 2 UPDATE
>
> Via: sip/2.0/tcp
> 148.147.171.28:5060;branch=z9hG4bK83138303530393F5334001b.0
>
> Via: SIP/2.0/TLS
> 148.147.171.28:6001
> ;psrrposn=1;received=148.147.171.28;branch=z9hG4bK809229ebbebdd1893497b5ad100
>
>
> Record-Route: <sip:148.147.171.28:5060;transport=tcp;lr>
>
> User-Agent: Avaya one-X Deskphone
>
> Content-Length: 0
>
> As Sipp is receiving the UPDATE successfully but While sending the 200OK
> for UPDATE the SES does not process the 200OK as it wants that the 200OK
> which sipp sends should contains
> two separate via headers .
>
>
> In my case i send 200OK which contains the following dump
>
> SIP/2.0 200 OK
>
> From: sip:[email protected] <sip%[email protected]>
> ;tag=8038c7bbbebdd17a3497b5ad100
>
> To: sip:[email protected] <sip%[email protected]>
> ;tag=-2cee5336498317ae-c_F148.147.171.54
>
> Call-ID: [email protected]
>
> CSeq: 2 UPDATE
>
> Via: sip/2.0/tcp
> 148.147.171.28:5060;branch=z9hG4bK83138303530393F5334001b.0,SIP/2.0/TLS
> 148.147.171.28:6001
> ;psrrposn=1;received=148.147.171.28;branch=z9hG4bK809229ebbebdd1893497b5ad100
>
>
> Record-Route: <sip:148.147.171.28:5060;transport=tcp;lr>
>
> User-Agent: Avaya one-X Deskphone
>
> Content-Length: 0
>
>
> My final approach which i used to send was followed the regular expression
> path .
>
> I have used two regular expression commands to separate two strings from
> the Via : header
>
> The Regular expression
> =====================
> 1. <ereg regexp=" .[^,]+ " search_in="hdr" header="Via:" assign_to ="2"/>
>
> 2. <ereg regexp="\,([A-Z]{3}/2\.[0-9]/[A-Z]{3})" search_in="hdr"
> header="Via:" assign_to ="3"/>
>
> the variable $2 gets sip/2.0/tcp
> 148.147.171.28:5060;branch=z9hG4bK83138303530393F5334001b.0
> and the variable $3 gets ,SIP/2.0/TLS
> 148.147.171.28:6001
> ;psrrposn=1;received=148.147.171.28;branch=z9hG4bK809229ebbebdd1893497b5ad100
>
> The problem is i was unable to erase the "," (comma) from the string
> which is stored in the $3 .
>
> the sample of 200OK is shown below after applying the regular expression :
> ============================================================
> SIP/2.0 200 OK
>
> From: sip:[email protected] <sip%[email protected]>
> ;tag=8038c7bbbebdd17a3497b5ad100
>
> To: sip:[email protected] <sip%[email protected]>
> ;tag=-2cee5336498317ae-c_F148.147.171.54
>
> Call-ID: [email protected]
>
> CSeq: 2 UPDATE
>
> Via: sip/2.0/tcp
> 148.147.171.28:5060;branch=z9hG4bK83138303530393F5334001b.0
> Via: ,SIP/2.0/TLS
> Via:148.147.171.28:6001
> ;psrrposn=1;received=148.147.171.28;branch=z9hG4bK809229ebbebdd1893497b5ad100
>
>
> Record-Route: <sip:148.147.171.28:5060;transport=tcp;lr>
>
> User-Agent: Avaya one-X Deskphone
>
> Content-Length: 0
>
>
>
> If somebody has any idea how to get the second string without "," .
> Please advice .
>
>
> Thanks
> Pratap Nath
>
>
>
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