[OpenSIPS-Users] URI PARSING

Premalatha Kuppan premalatha at ngintech.com
Fri Jul 9 10:23:33 CEST 2010


Also, $ct.fields(expires) is always null

xlog("---- contact expires=$ct.fields(expires) ;  header expires =
$hdr(Expires) \n");
*
OUTPUT:*
During Registration:
 ---- contact expires=<null> ;  header expires =1800

During De-Registration:
 ---- contact expires=<null> ;  header expires = 0

On Fri, Jul 9, 2010 at 1:47 PM, Premalatha Kuppan
<premalatha at ngintech.com>wrote:

> Thanks Bogdan.
>
> It was throwing me errors.
> Now i used the following to check de-registration. It works.
>
> if( is_present_hf("Expires") && $(hdr(Expires){s.int})==0)
>
> BTW, how to differentiate registration and RE-registration request ?
>
>
> On Fri, Jul 9, 2010 at 1:01 PM, Bogdan-Andrei Iancu <
> bogdan at voice-system.ro> wrote:
>
>> Try:
>>
>>
>>        xlog("---- contact expire=$ct.fields(expires) ;  header expire =
>> $hdr(Expires) \n");
>>        if ($ct.fields(expires)) == '0' || $hdr(Expires)=="0")
>>              xlog("L_ERR", "De-registration\n");
>>
>> Regards,
>> Bogdan
>>
>> Premalatha Kuppan wrote:
>> > I couldn't understand.
>> >
>> > I used $ct.fields(expires).
>> >
>> >         if ($ct.fields(expires)) == '0')
>> >              xlog("L_ERR", "De-registration\n");
>> >
>> >         else
>> >               perform some operation
>> >         exit;
>> >
>> > But its not working though.
>> >
>> > I want to differentiate register and de-register SIP request. Thought
>> > expires field in contact header would hold good. Is there any other way?
>> >
>> > What is the mistake iam doing ?
>> >
>> > On Fri, Jul 9, 2010 at 2:49 AM, Richard Revels <rrevels at bandwidth.com
>> > <mailto:rrevels at bandwidth.com>> wrote:
>> >
>> >     Ha!  Never thought about both being present when I wrote that.
>> >      Thank you.
>> >
>> >
>> >     On Jul 8, 2010, at 4:47 PM, Bogdan-Andrei Iancu wrote:
>> >
>> >     > Hi Richard,
>> >     >
>> >     > actually the logic should be the other way around - the "per
>> >     contact"
>> >     > expire (if present)  has higher priority over the header Expire.
>> >     >
>> >     > Regards,
>> >     > Bogdan
>> >     >
>> >     > Richard Revels wrote:
>> >     >>        #this next part logs an error if the message has no
>> expires
>> >     >> info (scanner messages sent directly to proxy for instance)
>> >     >>        if(is_present_hf("Expires"))
>> >     >>                $avp(i:10) := $hdr(Expires);
>> >     >>        else
>> >     >>                $avp(i:10) := $ct.fields(expires);
>> >     >>        if( $avp(i:10)  == "0" )
>> >     >>        {
>> >     >> ...
>> >     >>
>> >     >>
>> >     >> Speaking of this, using a min_expires param to the registrar
>> module
>> >     >> seems to defeat allowing users to unregister by sending a
>> >     expires of
>> >     >> zero.  I seem to remember it gets bumped to the min value.  If
>> >     true, I
>> >     >> think there should be a check added in the minimum time check
>> >     to let
>> >     >> zero sneak through as is and remove the user from userloc table.
>> >     >>
>> >     >> Richard
>> >     >>
>> >     >>
>> >     >> On Jul 8, 2010, at 5:33 AM, Premalatha Kuppan wrote:
>> >     >>
>> >     >>> Hi,
>> >     >>>
>> >     >>> How do i check expiration for user, meaning to identify
>> >     de-registration.
>> >     >>> When user is de-registred; then the request comes with
>> >     expires=0; how
>> >     >>> to get this field and check in opensips.cfg file ?
>> >     >>>
>> >     >>> Any help ?
>> >     >>>
>> >     >>> Thanks,
>> >     >>> Prem
>> >     >>>
>> >     >>>
>> >     >>> On Wed, Jul 7, 2010 at 7:42 PM, Premalatha Kuppan
>> >     >>> <premalatha at ngintech.com <mailto:premalatha at ngintech.com>
>> >     <mailto:premalatha at ngintech.com <mailto:premalatha at ngintech.com>>>
>> >     wrote:
>> >     >>>
>> >     >>>    Thanks to all.
>> >     >>>
>> >     >>>    Its working now using $tu and avp_db_query.
>> >     >>>
>> >     >>>     $var(x)=$(tu{uri.user});
>> >     >>>                    avp_db_query("INSERT INTO TESTTABLE
>> >     (xxx,yyy,zzz)
>> >     >>>
>> >
>>  VALUES('$(var(x){s.select,0,_})','$(var(x){s.select,1,_})','$(var(x){s.select,2,_})')");
>> >     >>>
>> >     >>>    Now, have to look how to remove these entries during
>> >     de-registration.
>> >     >>>
>> >     >>>    Thanks,
>> >     >>>    Prem
>> >     >>>
>> >     >>>
>> >     >>>
>> >     >>>    On Wed, Jul 7, 2010 at 5:05 PM, Bogdan-Andrei Iancu
>> >     >>>    <bogdan at voice-system.ro <mailto:bogdan at voice-system.ro>
>> >     <mailto:bogdan at voice-system.ro <mailto:bogdan at voice-system.ro>>>
>> >     wrote:
>> >     >>>
>> >     >>>        Premalatha Kuppan wrote:
>> >     >>>> Thanks. Corrected teh opensips.cfg file
>> >     >>>>
>> >     >>>> But the problem was due to this. by default DB URL was
>> >     >>>        NULL. Now i
>> >     >>>> have added the DB URL for avpops.
>> >     >>>> # default URL
>> >     >>>> modparam("avpops","db_url","mysql://user:passwd@host
>> /database")
>> >     >>>>
>> >     >>>>
>> >     >>>>
>> >     >>>> But the value of $rU is NULL..am i placing it in wrong
>> >     >>>        location?
>> >     >>>
>> >     >>>        In REGISTER requests, the RURI has only domain part
>> >     >>>        (sip:opensips.org <http://opensips.org>
>> >     <http://opensips.org/>)
>> >     >>>        so it is normal to have $rU NULL. If you need to
>> >     identity of
>> >     >>>        the user
>> >     >>>        who registered, according to SIP, you have to look at
>> >     the TO
>> >     >>>        URI - so
>> >     >>>        use $tu to get TO uri and use the URI transformation if
>> you
>> >     >>>        want to
>> >     >>>        split in in username and domain (see
>> >     >>>        http://www.opensips.org/Resources/DocsCoreTran16#toc17).
>> >     >>>
>> >     >>>
>> >     >>>        Regards,
>> >     >>>        Bogdan
>> >     >>>
>> >     >>>> I want the userpart e.g: sip:userpart at domain is the
>> >     >>>        request uri; i
>> >     >>>> need only userpart . I believe that would be stored in $rU;
>> >     >>>        but tis
>> >     >>>> coming as NULL. Which variable or where should i place this
>> >     >>>        command
>> >     >>>> for registration and de-registration.
>> >     >>>>
>> >     >>>> Any Idea ?
>> >     >>>>
>> >     >>>> On Wed, Jul 7, 2010 at 4:13 PM, mayamatakeshi
>> >     >>>        <mayamatakeshi at gmail.com
>> >     <mailto:mayamatakeshi at gmail.com> <mailto:mayamatakeshi at gmail.com
>> >     <mailto:mayamatakeshi at gmail.com>>
>> >     >>>> <mailto:mayamatakeshi at gmail.com <mailto:
>> mayamatakeshi at gmail.com>
>> >     >>>        <mailto:mayamatakeshi at gmail.com
>> >     <mailto:mayamatakeshi at gmail.com>>>> wrote:
>> >     >>>>
>> >     >>>>
>> >     >>>>
>> >     >>>>    On Wed, Jul 7, 2010 at 7:32 PM, Premalatha Kuppan
>> >     >>>>    <premalatha at ngintech.com <mailto:premalatha at ngintech.com>
>> >     >>>        <mailto:premalatha at ngintech.com
>> >     <mailto:premalatha at ngintech.com>>
>> >     >>>        <mailto:premalatha at ngintech.com
>> >     <mailto:premalatha at ngintech.com>
>> >     >>>        <mailto:premalatha at ngintech.com
>> >     <mailto:premalatha at ngintech.com>>>> wrote:
>> >     >>>>
>> >     >>>>        Hi,
>> >     >>>>
>> >     >>>>        Iam using avp_db_query, but opensips is dead with
>> >     >>>        following error,
>> >     >>>>
>> >     >>>>        During Registration, when the user is registered. I
>> >     >>>        have to
>> >     >>>>        parse and store th value in DB. So, included the
>> >     >>>        avp_db_query
>> >     >>>>        in this loop. Is this right one to do. I assume the
>> >     >>>        value of
>> >     >>>>        rU is NULL over here, probably its failing. Not sure :(
>> >     >>>>
>> >     >>>>        Any insight  ?
>> >     >>>>
>> >     >>>>        if (is_method("REGISTER"))
>> >     >>>>                {
>> >     >>>>                        # authenticate the REGISTER requests
>> >     >>>>        (uncomment to enable auth)
>> >     >>>>                        if (!www_authorize("10.140.1.110",
>> >     >>>        "subscriber"))
>> >     >>>>                        {
>> >     >>>>
>> >     >>>        www_challenge("10.140.1.110", "0");
>> >     >>>>                                exit;
>> >     >>>>                        }
>> >     >>>>
>> >     >>>>                     #  if (!db_check_to())
>> >     >>>>                     #  {
>> >     >>>>                     #
>> >     >>>         sl_send_reply("403","Forbidden auth ID");
>> >     >>>>                     #          exit;
>> >     >>>>                     #  }
>> >     >>>>
>> >     >>>>                        if (!save("location"))
>> >     >>>>                                sl_reply_error();
>> >     >>>>
>> >     >>>>                        $var(x) = $rU ;
>> >     >>>>                        avp_db_query("INSERT INTO TESTTABLE
>> >     >>>>        (xxx,yyy,zzz)
>> >     >>>>
>> >     >>>
>> >
>>  VALUES('$(var(x){s.select,0,_})','$var(x)({s.select,1,_})','$(var(x){s.select,2,_})'");
>> >     >>>>                        exit;
>> >     >>>>                }
>> >     >>>>
>> >     >>>>
>> >     >>>>        Jul  7 06:25:16 204548-4
>> >     >>>        /usr/local/sbin/opensips[17791]:
>> >     >>>>        ERROR:avpops:fixup_db_query_avp: no db url defined
>> >     >>>        to be used
>> >     >>>>        by this function
>> >     >>>>        Jul  7 06:25:16 204548-4
>> >     >>>        /usr/local/sbin/opensips[17791]:
>> >     >>>>        *ERROR:core:fix_actions: fixing failed (code=-6) at
>> >     >>>        cfg line 351*
>> >     >>>>        Jul  7 06:25:16 204548-4
>> >     >>>        /usr/local/sbin/opensips[17791]:
>> >     >>>>        ERROR:core:main: failed to fix configuration with
>> >     >>>        err code -6
>> >     >>>>
>> >     >>>>
>> >     >>>>    Clearly you misplaced the parenthesis:
>> >     >>>>
>> >     >>>>
>> >     >>>>    $(var(x){s.select,0,_})',
>> >     >>>>    '$var(x)({s.select,1,_})',
>> >     >>>>    '$(var(x){s.select,2,_})'
>> >     >>>>
>> >     >>>>
>> >     >>>>
>> >     >>>>
>> >     >>>>    _______________________________________________
>> >     >>>>    Users mailing list
>> >     >>>>    Users at lists.opensips.org <mailto:Users at lists.opensips.org>
>> >     >>>        <mailto:Users at lists.opensips.org
>> >     <mailto:Users at lists.opensips.org>>
>> >     >>>        <mailto:Users at lists.opensips.org
>> >     <mailto:Users at lists.opensips.org>
>> >     >>>        <mailto:Users at lists.opensips.org
>> >     <mailto:Users at lists.opensips.org>>>
>> >     >>>>    http://lists.opensips.org/cgi-bin/mailman/listinfo/users
>> >     >>>>
>> >     >>>>
>> >     >>>>
>> >     >>>
>> >
>>  ------------------------------------------------------------------------
>> >     >>>>
>> >     >>>> _______________________________________________
>> >     >>>> Users mailing list
>> >     >>>> Users at lists.opensips.org <mailto:Users at lists.opensips.org>
>> >     <mailto:Users at lists.opensips.org <mailto:Users at lists.opensips.org>>
>> >     >>>> http://lists.opensips.org/cgi-bin/mailman/listinfo/users
>> >     >>>>
>> >     >>>
>> >     >>>
>> >     >>>        --
>> >     >>>        Bogdan-Andrei Iancu
>> >     >>>        OpenSIPS Bootcamp
>> >     >>>        20 - 24 September 2010, Frankfurt, Germany
>> >     >>>        www.voice-system.ro <http://www.voice-system.ro>
>> >     <http://www.voice-system.ro/>
>> >     >>>
>> >     >>>
>> >     >>>        _______________________________________________
>> >     >>>        Users mailing list
>> >     >>>        Users at lists.opensips.org
>> >     <mailto:Users at lists.opensips.org> <mailto:Users at lists.opensips.org
>> >     <mailto:Users at lists.opensips.org>>
>> >     >>>        http://lists.opensips.org/cgi-bin/mailman/listinfo/users
>> >     >>>
>> >     >>>
>> >     >>>
>> >     >>> _______________________________________________
>> >     >>> Users mailing list
>> >     >>> Users at lists.opensips.org <mailto:Users at lists.opensips.org>
>> >     <mailto:Users at lists.opensips.org <mailto:Users at lists.opensips.org>>
>> >     >>> http://lists.opensips.org/cgi-bin/mailman/listinfo/users
>> >     >>
>> >     >>
>> >
>> ------------------------------------------------------------------------
>> >     >>
>> >     >> _______________________________________________
>> >     >> Users mailing list
>> >     >> Users at lists.opensips.org <mailto:Users at lists.opensips.org>
>> >     >> http://lists.opensips.org/cgi-bin/mailman/listinfo/users
>> >     >>
>> >     >
>> >     >
>> >     > --
>> >     > Bogdan-Andrei Iancu
>> >     > OpenSIPS Bootcamp
>> >     > 20 - 24 September 2010, Frankfurt, Germany
>> >     > www.voice-system.ro <http://www.voice-system.ro>
>> >     >
>> >     >
>> >     > _______________________________________________
>> >     > Users mailing list
>> >     > Users at lists.opensips.org <mailto:Users at lists.opensips.org>
>> >     > http://lists.opensips.org/cgi-bin/mailman/listinfo/users
>> >
>> >
>> >     _______________________________________________
>> >     Users mailing list
>> >     Users at lists.opensips.org <mailto:Users at lists.opensips.org>
>> >     http://lists.opensips.org/cgi-bin/mailman/listinfo/users
>> >
>> >
>> > ------------------------------------------------------------------------
>> >
>> > _______________________________________________
>> > Users mailing list
>> > Users at lists.opensips.org
>> > http://lists.opensips.org/cgi-bin/mailman/listinfo/users
>> >
>>
>>
>> --
>> Bogdan-Andrei Iancu
>> OpenSIPS Bootcamp
>> 20 - 24 September 2010, Frankfurt, Germany
>> www.voice-system.ro
>>
>>
>> _______________________________________________
>> Users mailing list
>> Users at lists.opensips.org
>> http://lists.opensips.org/cgi-bin/mailman/listinfo/users
>>
>
>
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