[Serusers] Restrict registration to one user per login
Marian Dumitru
marian.dumitru at voice-sistem.ro
Wed Mar 23 14:09:22 CET 2005
Hi Paul,
You are right - maybe a better approach will be to use the registered()
function - it returns true if the AOR in the Request-URI is registered.
To do the trick for REGISTER requests, use avpops so copy the From or To
uri into RURI before checking - then you can to revert_uri() to restore
to original value,
I haven't tried it , it's just an idea.
Best regards,
Marian
Java Rockx wrote:
> FYI, exec_msg is highly not recommended because it is "expensive" in
> terms of processing.
>
> Regards,
> Paul
>
>
> On Tue, 22 Mar 2005 10:37:58 +0100, Jffdsaklj dsjk <jjjaime at gmail.com> wrote:
>
>>Finally I found a solution. I've attached the block I included in the
>>SER cfg file.
>>The problem (big problem) is that after a day (more or less), there
>>are defunct processes. I think it's a problem of the exec_msg
>>sentence, but I'm not sure. With these defunct processes, SER crashed.
>>:(
>>
>> ######################################################################
>> # This block of code controls the user registration
>> if (method=="REGISTER") {
>>
>> # Enable authentication
>> if (!www_authorize("galeno.hi.inet","subscriber")) {
>> www_challenge("galeno.hi.inet","0");
>> break;
>> };
>>
>> ####
>> # This block prevents a user from registering with a login
>>previously registered from another machine
>> #
>> # Verify it's not a deregistration message
>> if (!search("Expires: 0")) {
>> # It's a registration message
>> # Verify that there's no register in the table location with the
>>same user but from a differente machine
>> if (
>> !exec_msg('
>> USUARIO=`echo $SIP_HF_FROM | sed -n "s/<sip:\(.*\)@.*/\1/p"`;
>> QUERY="select username from location where
>>username=\"$USUARIO\" and contact not like \"sip:$SIP_SRCIP:%\"";
>> RESULT=`mysql -uXXX -pXXX -e "$QUERY" ser`;
>> if [ -z "$RESULT" ]; then exit 0; else echo "The user
>>$USUARIO is already registered" >> /var/log/serprueba.log; exit 1;
>>fi;')
>> ) {
>> # The user is already registered
>> sl_send_reply("404", "Not Found");
>> break;
>> };
>> }
>> ####
>>
>> save("location");
>> break;
>> };
>> #####################################################################
>>
>>On Wed, 16 Mar 2005 17:11:01 +0100, Klaus Darilion
>><klaus.mailinglists at pernau.at> wrote:
>>
>>>Hi Jffdsaklj! (must be a hard life living with such a name)
>>>
>>>And how will you distinguish between an invalid registration and a valid
>>>re-registration from a new IP address?
>>>
>>>regards,
>>>klaus
>>>
>>>Jffdsaklj dsjk wrote:
>>>
>>>>How can we restrict the registration to only one user per login?.
>>>>Currently, you can register with the same login/password in different
>>>>machines at the same time. But what we require is that only the first
>>>>registration is valid and the rest ones are invalidated by the SER.
>>>>Thanks
--
Voice System
http://www.voice-system.ro
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