#sem.cfg for philonline
#created by rpagquil
#aug. 16, 2005

debug=8
fork=yes
log_stderror=yes

listen=202.84.24.107
port=5060
children=4

dns=yes
rev_dns=yes


fifo="/tmp/ser_fifo"
fifo_db_url="mysql://ser:heslo@localhost/ser"

alias=sip.philonline.com

#load module part

loadmodule "/usr/local/lib/ser/modules/mysql.so"
loadmodule "/usr/local/lib/ser/modules/domain.so"
loadmodule "/usr/local/lib/ser/modules/sl.so"
loadmodule "/usr/local/lib/ser/modules/tm.so"
loadmodule "/usr/local/lib/ser/modules/rr.so"
loadmodule "/usr/local/lib/ser/modules/maxfwd.so"
loadmodule "/usr/local/lib/ser/modules/usrloc.so"
loadmodule "/usr/local/lib/ser/modules/registrar.so"
loadmodule "/usr/local/lib/ser/modules/auth.so"
loadmodule "/usr/local/lib/ser/modules/auth_db.so"
loadmodule "/usr/local/lib/ser/modules/uri.so"
loadmodule "/usr/local/lib/ser/modules/uri_db.so"
loadmodule "/usr/local/lib/ser/modules/mediaproxy.so"
loadmodule "/usr/local/lib/ser/modules/nathelper.so"
loadmodule "/usr/local/lib/ser/modules/textops.so"
loadmodule "/usr/local/lib/ser/modules/acc.so"
loadmodule "/usr/local/lib/ser/modules/permissions.so"
loadmodule "/usr/local/lib/ser/modules/avpops.so"
loadmodule "/usr/local/lib/ser/modules/group.so"

#module parameter setup

modparam("rr", "enable_full_lr", 1)
modparam("auth_db|uri_db|usrloc|domain|permissions|group", "db_url", "mysql://ser:heslo@localhost/ser")
modparam("auth_db", "calculate_ha1", 1)
modparam("auth_db", "password_column", "password")
modparam("usrloc", "db_mode", 1)
modparam("usrloc", "use_domain", 0)

modparam("nathelper", "rtpproxy_disable", 1)
modparam("nathelper", "natping_interval", 0)

modparam("mediaproxy", "natping_interval", 30)
modparam("mediaproxy", "mediaproxy_socket", "/var/run/mediaproxy.sock")
modparam("mediaproxy", "sip_asymmetrics", "/usr/local/etc/ser/sip-clients")
modparam("mediaproxy", "rtp_asymmetrics", "/usr/local/etc/ser/rtp-clients")
modparam("registrar", "nat_flag", 6)
modparam("registrar", "use_domain", 0)

modparam("acc", "log_level", 2)
modparam("acc", "log_fmt", "cdfimorstup")
modparam("acc", "report_ack", 1)
#modparam("acc", "failed_transactions", 1)
modparam("acc", "log_flag", 1)
#modparam("acc", "report_cancels", 1)
modparam("acc", "db_flag", 1)
modparam("acc", "db_missed_flag", 3)
modparam("acc", "db_url", "mysql://ser:heslo@localhost/ser")

modparam("uri_db", "uri_table", "uri")
modparam("uri_db", "uri_user_column", "username")
modparam("uri_db", "uri_domain_column", "domain")
modparam("uri_db", "use_domain", 1)
modparam("uri_db", "use_uri_table", 1)
modparam("uri_db", "subscriber_domain_column", "domain")
modparam("uri_db", "subscriber_user_column", "username")
modparam("uri_db", "subscriber_table", "subscriber")
modparam("uri_db", "uri_uriuser_column", "uri_user")

modparam("domain", "db_mode", 1)
modparam("domain", "domain_table", "domain")
modparam("domain", "domain_col", "domain")

modparam("permissions", "default_allow_file", "/usr/local/etc/ser/allow.permissions")
modparam("permissions", "default_deny_file", "/usr/local/etc/ser/deny.permissions")
modparam("permissions", "db_mode", 1)
modparam("permissions", "trusted_table", "trusted")

modparam("avpops", "avp_url", "mysql://ser:heslo@localhost/ser")
modparam("avpops", "avp_table", "usr_preferences" )
#modparam("avpops", "uuid_column", "id" )
#modparam("avpops", "avp_aliases", "email=i:67" )
#modparam("avpops", "db_scheme","email_scheme:table=subscriber;value_col=email_address;value_type=string")
##modparam("avpops", "db_scheme","language_scheme:table=subscriber;value_col=language;value_type=string")
#modparam("tm", "tw_append","voicemail_headers:hdr[User-Agent];P-Email-Address=avp[$email]")

modparam("tm","fr_inv_timer", 27)
modparam("tm", "fr_inv_timer_avp", "inv_timeout")

modparam("group", "table", "grp")
modparam("group", "user_column", "username")
modparam("group", "domain_column", "domain")
modparam("group", "group_column", "grp") 
modparam("group", "use_domain", 1)


#our routing logic

route {

        if (!mf_process_maxfwd_header("10")) {
                sl_send_reply("483", "Too many hops");
                break;
        };

        if (msg:len > max_len) {
                sl_send_reply("513", "Message overflow");
                break;
        };



###record route####

        if (method=="INVITE" && client_nat_test("3")) {
                record_route_preset("202.84.24.107:5060;nat=yes");
        } else if (method!="REGISTER") {
                record_route();
        };

###call tear down section###
        if (method=="BYE" || method=="CANCEL") {
                end_media_session();
        };


###accounting###

        if ((!has_totag() && (method=="INVITE" || method=="ACK")) || (method=="BYE")) {
                setflag(1);
        };

###loose route###

        if (loose_route()) {

                if (has_totag() && (method=="INVITE" || method=="ACK")) {
                        if (client_nat_test("3") || search("^Route:.*;nat=yes")) {
                                setflag(6);
                                use_media_proxy();
                        };
                };

                route(1);
                break;
        };

###call type processing###


        if (!is_uri_host_local()) {
                if (is_from_local() || allow_trusted()) {
                        route(4);
                        route(1);
                } else {
                        sl_send_reply("403","Forbidden");
                };
                break;
        };

                if (method=="CANCEL") {
                        route(1);
                        break;
                } else if (method=="INVITE") {
                        route(3);
                        break;
                } else  if (method=="REGISTER") {
                                route(2);
                                break;
                };


                lookup("aliases");
                if (uri!=myself) {
                        route(4);
                        route(1);
                        break;
                };

                if (!lookup("location")) {
                        sl_send_reply("404", "User not found");
                        break;
        };

        route(1);
}

##Default message handler##
route[1] {

        t_on_reply("1");

        if (!t_relay()) {

                if (method=="INVITE" || method=="ACK") {
                        end_media_session();
                };

                sl_reply_error();
        };
}

##Register message handler##
route[2] {

        sl_send_reply("100", "Trying");


        if (!search("^Contact:\ +\*") && client_nat_test("7")) {
                setflag(6);
                fix_nated_register();
                force_rport();
        };

        if (!www_authorize("sip.philonline.com","subscriber")) {
                www_challenge("sip.philonline.com","0");
                break;
        };

        if (!check_to()) {
                sl_send_reply("401", "You are not authorized");
                break;
        };

        consume_credentials();

        if (!save("location")) {
                sl_reply_error();
        };
}

##INVITE message Handler##
route[3]
        {

#       if (!allow_trusted()) {

#               if (!proxy_authorize("","subscriber")) {
#                       proxy_challenge("", "0");
#                       break;
#               } else if (!check_from()) {
#                       sl_send_reply("403", "User From=ID");
#                       break;
#               };

#               consume_credentials();
#       };

        if (client_nat_test("3")) {
                setflag(7);
                force_rport();
                fix_nated_contact();
        };

        #if (uri=~"^sip:1[0-9]@") {
        #       strip(1);
        #};

        lookup("aliases");
        if (uri!=myself) {
                route(4);
                route(1);
                break;
        };

        if (uri=~"^sip:011[0-9]*@") {
                strip(3);
                route(4);
                route(5);
                break;
        };

        if (avp_db_load("$ruri/username","s:callfwd")) {
                setflag(22);
                avp_pushto("$ruri", "s:callfwd");
                route(6);
                break;
        } else if (avp_db_load("$ruri/username","s:vmail")) {
                setflag(23);
                avp_pushto("$ruri", "s:vmail");
                route(6);
                break;
        };

        if (!lookup("location")) {
                if (uri=~"^sip:[0-9]{10}@") {
                        route(4);
                        route(5);
                        break;
                };

                sl_send_reply("404", "User not found");
                break;
        };


        if (avp_db_load("$ruri/username","s:fwdbusy")) {
                if (!avp_check("s:fwdbusy","eq/$ruri/i")) {
                        setflag(26);
                };
        };

        if (avp_db_load("$ruri/username", "s:fwdnoanswer")) {
                if (!avp_check("s:fwdnoanswer", "eq/$ruri/i")) {
                        setflag(27);
                };
        };

        if (avp_db_load("$ruri/username", "s:vmail") && is_user_in("To", "vmail")) {
                if (!avp_check("s:vmail", "eq/$ruri/i")) {
                setflag(28);
                };
        }; 

        t_on_failure("1");

        route(4);
        route(1);
}

###NAT traversal section###
route[4] {
        if (isflagset(6) || isflagset(7)) {
                if (!isflagset(8)) {
                        setflag(8);
                        use_media_proxy();
                };
        };
}

###PSTN Handler###
route[5] {
        rewritehost("202.147.52.21");
        avp_write("i:45", "inv_timeout");
        t_on_failure("1");
        route(4);
        route(1);
}

###Call forwarding handler###

route[6] {

        if (uri=~"^sip:1[0-9]{10}@") {
                strip(1);
        };

        if (uri=~"^sip:[a-z][0-9]@202.84.24.47.*$" || uri=~"^sip:[a-z]@202.84.24.47.*$") {
                route(4);
                route(7);
        break;
        };

        lookup("aliases");
        if (uri!=myself) {

                if (!isflagset(22)) {
                        append_branch();
                };

                route(4);
                route(1);
                break;
        };

        if (uri=~"^sip:011[0-9]*@") {
                strip(3);
                route(4);
                route(5);
                break;
        };

        if (!lookup("location")) {

                if (uri=~"^sip:[0-9]{10}@") {
                        route(4);
                        route(1);
                        break;
                };

                sl_send_reply("404", "User not found");
        };

        route(4);
        route(1);
}

###Asterisk Handler###
route[7] {
        sl_send_reply("100", "Trying");
        rewritehostport("202.84.24.47:5060");
        t_relay();
        break;
}

onreply_route[1] {

        if (isflagset(6) || isflagset(7) && (status=~"(180)|(183)|2[0-9][0-9]")) {

                if (!search("^Content-Length:\ +0")) {
                        use_media_proxy();
                };
        };

        if (client_nat_test("1")) {
                fix_nated_contact();
        };

}

failure_route[1] {

        if (t_check_status("487")) {
                break;
        };

        if (isflagset(28)) { 
                if (t_check_status("486") || !lookup("location")) {
                        if (avp_pushto("$ruri", "s:vmail")) {
                                avp_delete("s:vmail");
                                resetflag(28);
                                route(6);
                                break;
                        };
                };
        };

        if (isflagset(26) && t_check_status("486")) {
                if (avp_pushto("$ruri", "s:fwdbusy")) {
                        avp_delete("s:fwdbusy");
                        resetflag(26);
                        route(6);
                        break;
                };
        };

        if (isflagset(27) && t_check_status("408")) {
                if (avp_pushto("$ruri", "s:fwdnoanswer")) {
                        avp_delete("s:fwdnoanswer");
                        resetflag(27);
                        route(6);
                        break;
                };
        };

        end_media_session();
}