[Kamailio-Users] [Solved] How to configure alias_db_lookup in config script

[Alex Balashov]

This is curious logic.  This code causes the call to roll to another 
branch (via dispatcher) if the user part of the RURI cannot be found 
in the 'dbaliases' table -- are you sure this is what you want?  One 
would think if the number is not in the aliases table, it cannot be to 
any server?  Or am I misunderstanding?

JR Richardson wrote:

> Thanks for your quick replys.
>  
> Here is the syntax that is working for me:
>  
> route{
>         # initial sanity checks -- messages with
>         # max_forwards==0, or excessively long requests
>         if (!mf_process_maxfwd_header("10")) {
>                 sl_send_reply("483","Too Many Hops");
>                 exit;
>         };
>         if (msg:len >=  2048 ) {
>                 sl_send_reply("513", "Message too big");
>                 exit;
>         };
> 
>         if(alias_db_lookup("dbaliases")) {
>         t_relay();
>  
>         }else{
>  
>         ds_select_dst("1", "4");
>         t_on_failure("1");
>         t_relay();
>         }
> }
> 
> failure_route[1] {
>         ds_next_dst();
>         forward();
>         }
> 
> On Wed, Nov 18, 2009 at 3:45 PM, Alex Balashov 
> <abalashov at evaristesys.com <mailto:abalashov at evaristesys.com>> wrote:
> 
>     JR,
> 
>     Like many lookup functions, the alias_db_lookup() function has a
>     return value.  You should check it for a negative result before
>     proceeding further in the script:
> 
>     Example:
> 
>       if(!alias_db_lookup("dbaliases")) {
>               sl_send_reply("404", "Not Found");
>               exit;
>       }
> 
>     Error handling in general is a must.
> 
>     -- Alex
> 
>     JR Richardson wrote:
> 
>         Hi All,
>          I have a real simple load balancer proxy setup using the
>         dispatcher module, works great.  I want to do an alias lookup
>         before I send the calls through to the dispatcher, but I can't
>         seem to find a good example of how that should be setup in the
>         config script.  I've tried different things, the
>         aliase_db_lookup is working but if a user is not in the
>         database, the call loops and does not continue on to the
>         dispatcher.  Here is my current route script (this does not work):
>          route{
>                # initial sanity checks -- messages with
>                # max_forwards==0, or excessively long requests          
>                    if (!mf_process_maxfwd_header("10")) {
>                        sl_send_reply("483","Too Many Hops");
>                        exit;
>                };
>                if (msg:len >=  2048 ) {
>                        sl_send_reply("513", "Message too big");
>                        exit;
>                };
> 
>                alias_db_lookup("dbaliases");
>                t_on_failure("1");
>                t_relay();
>                  ds_select_dst("1", "4");
>                t_on_failure("1");
>                t_relay();
>         }
> 
>         failure_route[1] {
>                ds_next_dst();
>                forward();
>                }
>         I think there should be an 'if' 'then' or 'if' 'else' separating
>         the alias_db_lookup and the ds_select functions, but I'm not
>         sure of the syntax and where the curly brackets need to be.
>          Thanks.
>          JR
>         -- 
>         JR Richardson
>         Engineering for the Masses
> 
> 
>         ------------------------------------------------------------------------
> 
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> 
> 
> 
>     -- 
>     Alex Balashov - Principal
>     Evariste Systems
>     Web     : http://www.evaristesys.com/
>     Tel     : (+1) (678) 954-0670
>     Direct  : (+1) (678) 954-0671
> 
> 
> -- 
> JR Richardson
> Engineering for the Masses
> 
> 
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-- 
Alex Balashov - Principal
Evariste Systems
Web     : http://www.evaristesys.com/
Tel     : (+1) (678) 954-0670
Direct  : (+1) (678) 954-0671