[Serusers] Proxy_authorize, www_authorize

Jiri Kuthan jiri at iptel.org
Wed Mar 5 23:05:04 CET 2003


I see two limitations:
- if you only challenge INVITEs to outside domain, people out of your
  domain can call people in your domain and claim shamelessly your domain
  name in From, which is then sort of rubberstamped by the proxy; so I think
  you can combine challenging based on From along with "anti-spam" policy
  "drop invites which have my domain neither in From nor in r-uri"
- if you apply such policies to other requests than BYE, you will run into
  troubles, better be permissive about non-INVITEs. See 


At 10:10 PM 3/5/2003, Lasse Jansson wrote:
>One last question: I guess that if I want my server to offer <forwarding of 
>requests to other domains> only to authorized users in my domain I should 
>restrict the last part more, as follows:
># For requests to other domains
>                if (!proxy_authorize("mydomain.com", "subscriber")) {
>                        proxy_challenge("mydomain.com", "1");
>                        break;
>                };
>(i.e. I can skip the (search("(f|From).*mydomain\.com")) condition in this 
>On Wednesday 05 March 2003 02.08, Jiri Kuthan wrote:
>> At 10:43 PM 3/4/2003, Lasse Jansson wrote:
>> >Thanks for your answer !
>> >
>> >I guess then that the following lines (based on the default script) would
>> > work to implement all of Michael's example ?
>> >
>> >Lasse
>> >
>> >        if (uri=~mydomain.com) {
>> perhaps better (uri=~"[@:]mydomain\.com"). Everything else seems reasonable
>> to me.
>> -Jiri
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Jiri Kuthan            http://iptel.org/~jiri/ 

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