[OpenSER-Users] OpenSER prepaid CDRTool 6.2.3 problem with replacing '+' with '00'

Marc LEURENT lftsy at leurent.eu
Mon Mar 3 14:23:39 CET 2008


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Thanks Dan and Iñaki for your answers:

I've changed this in the freeradius-cdrtool module of Dan:
#to_uri=atrbValue(params,'Digest-URI')
to_uri=atrbValue(params,'Digest-URI').replace('+','00')

> 2. A bit dirty patch on the freeradius-cdrtool connector to replace "+"
> with "00" in case of calls starting with +, before querying cdrtool in
> auth phase. In this case you must replace also in openser + with 00 so
> when the call will go out, should go with 00 (to be properly reflected
> later in cdrs). - this is what I did and looks like running smooth.
But I don't understand how to change the second part in OpenSER?

Otherwize I will do it in the accounting python module?

Thanks!


Dan-Cristian Bogos a écrit :
> Hi Marc,
> 
> had the same issue. The problem is that CDRTool supports only one type
> of international prefix (in your case any of '00' or '+', so no way of
> specifying two).
> The reason you cannot replace + with 00 before authentication is that
> the full digest-nonce is calculated based on a series of factors (which
> includes original from and to uris and replacing to_uri before sending
> the request to radius to be authenticated would mean that radius will
> never recognize the nonce to be valid anymore).
> 
> There are two ways of fixing your problem, as I see them (and mines too):
> 1. CDRTool folks should support some sort of list of international
> prefixes recognized and stripped.
> 2. A bit dirty patch on the freeradius-cdrtool connector to replace "+"
> with "00" in case of calls starting with +, before querying cdrtool in
> auth phase. In this case you must replace also in openser + with 00 so
> when the call will go out, should go with 00 (to be properly reflected
> later in cdrs). - this is what I did and looks like running smooth.
> 
> 
> Cheers,
> DanB
> 
> On Mon, Mar 3, 2008 at 12:46 PM, Marc LEURENT <lftsy at leurent.eu
> <mailto:lftsy at leurent.eu>> wrote:
> 
> Hello
> I have trouble with number dialed starting with +
> CDRTool doesn' understand it.
> So I have to strip it from the request and replace it by 00!
> The problem is that even using this at the begenning of OpenSER
> script, it's not working (see CDRTool log below)
> 
> Any idea how to solve it?
> Thanks
> 
>        # normalization to e164
>        if($ruri.user =~ "^\+[1-9][0-9]+") {
>                xlog("STRIPING + For e164 NORMALIZATION \r\n");
>                strip(1);
>                prefix("00");
>                subst('/^To:(.*)sip:\+(.*)$/To:\1sip:00\2/ig');
>        };
> 
> 
> 
> Mar  3 12:24:49 krusty CDRTool[15025]: MaxSessionTime
> From=mleurent at sip.wifirst.net <mailto:mleurent at sip.wifirst.net>
> To=sip:+33677832975 at sip.wifirst.net
> <mailto:sip:+33677832975 at sip.wifirst.net> Dura
> tion=10800 Lock=1
> Mar  3 12:24:49 krusty CDRTool[15025]: Load last minute: 1 calls @
> 0.00 cps, memory: 16.77 MB, uptime: 0.6 hours
> Mar  3 12:24:49 krusty CDRTool[15025]: Call to
> +33677832975 at sip.wifirst.net <http://sip.wifirst.net>, no limit imposed
> Mar  3 12:24:49 krusty CDRTool[15025]: GetBalance
> From=mleurent at sip.wifirst.net <mailto:mleurent at sip.wifirst.net>
> Mar  3 12:24:51 krusty /usr/sbin/openser[18637]: ACC: call missed:
> timestamp=1204543491;method=INVITE;from_tag=xirvq;to_tag=
> ;call_id=cpvrqboancqnuii at 192.168.95.139
> <mailto:cpvrqboancqnuii at 192.168.95.139>;code=487;reason=Request
> Terminated
> Mar  3 12:24:51 krusty CDRTool[15025]: DebitBalance
> From=mleurent at sip.wifirst.net <mailto:mleurent at sip.wifirst.net>
> To=sip:0033677832975 at sip.wifirst.net
> <mailto:sip:0033677832975 at sip.wifirst.net> Durat
> ion=0
> 
> 
> OpenSER config extract:
> 
> # ATTENTION: DO NOT PUT ; at the end of the radius_extra attribute
> modparam("acc", "radius_extra", "
>                                Called-Station-Id=$tu;
>                                Calling-Station-Id=$fu;
>                                Canonical-URI=$avp(to_destination);
>                                User-Name=$avp(user_name);
>                                Billing-Party=$avp(billing_party);
>                                Sip-User-Realm=$ar;
>                                SIP-Proxy-IP=$Ri;
>                                Source-IP=$si;
>                                Source-Port=$sp;
>                                Acct-Authentic=$avp(s:authentic);
>                                From-Header=$hdr(from);
>                                User-Agent=$hdr(user-agent);
>                                Contact=$hdr(contact);
>                                Event=$hdr(event)")
> 
> 
> 
>        # Set the acc flags
>        xlog("JUSTE BEFORE SETTING FLAGS FOR RADIUS\r\n");
>        if(is_method("INVITE") && !has_totag()) {
>                xlog("L_INFO", "I AM SETTING THE FLAGS FOR RADIUS \r\n");
> #               $avp(s:authentic) = 1;
> #               $avp(can_uri) = $ru;            # SIP Request's URI
>                $avp(user_name) = $au + "@" + $ar;
>                $avp(billing_party) = $au + "@" + $ar;
>                $avp(to_destination) = $tu;
>                xlog("SETTING FLAGS 1 FOR RADIUS \r\n");
>                setflag(1);             # radius_flag
>                xlog("SETTING FLAGS 2 FOR RADIUS \r\n");
>                setflag(2);             # radius_missed_flag
>        };

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