# ----------- global configuration parameters ------------------------
/*
debug=5
fork=no
log_stderror=yes
*/

debug=1
fork=yes
log_stderror=no
listen=10.192.250.132
check_via=no	# (cmd. line: -v)
dns=no           # (cmd. line: -r)
rev_dns=no      # (cmd. line: -R)
port=5060
children=5
fifo="/tmp/ser_fifo"
alias="10.192.250.132"
fifo_mode=438 # 666

# ------------------ module loading ----------------------------------

loadmodule "/usr/local/lib/ser/modules/mysql.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/exec.so"
loadmodule "/usr/local/lib/ser/modules/auth.so"
loadmodule "/usr/local/lib/ser/modules/auth_radius.so"
loadmodule "/usr/local/lib/ser/modules/group.so"
loadmodule "/usr/local/lib/ser/modules/acc.so"

loadmodule "/usr/local/lib/ser/modules/textops.so"
loadmodule "/usr/local/lib/ser/modules/domain.so"
loadmodule "/usr/local/lib/ser/modules/xlog.so"
loadmodule "/usr/local/lib/ser/modules/mediaproxy.so"
loadmodule "/usr/local/lib/ser/modules/uri.so"
# ----------------- setting module-specific parameters ---------------

modparam("tm", "fr_inv_timer", 40)
modparam("tm", "fr_timer", 30)
modparam("auth_radius", "service_type", 15)
modparam("auth_radius", "radius_config", "/usr/local/etc/radiusclient/radiusclient.conf")
modparam("acc", "radius_flag", 1)
modparam("acc", "report_ack", 0)
modparam("acc", "radius_missed_flag", 2)
modparam("usrloc", "db_mode", 1)
modparam("usrloc", "timer_interval", 15)
modparam("rr", "enable_full_lr", 1)
modparam("registrar", "nat_flag", 6)
modparam("mediaproxy", "natping_interval", 30) # Ping interval 30 s
# -------------------------  request routing logic -------------------

route{

	if (method=="REGISTER" || !search("^Record-Route:")) {
		if (client_nat_test("3")) {
			force_rport();
			fix_contact();
			setflag(5);
		};
	};

	if (method == "BYE" || method == "CANCEL") {
		end_media_session();
		setflag(1); # accounting
		setflag(2); # missed call
	};

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

	record_route();
	if (loose_route()) {
		if (method=="BYE") {
			setflag(1);
			setflag(2);
			end_media_session();
		};
		if (!t_relay()) {
			if (method=="INVITE" || method=="ACK") {
				end_media_session();
			};
			sl_reply_error();
		};
		break;
	};

	if (uri==myself) {
		if (method=="REGISTER") {
			if (!radius_www_authorize("")) {
				www_challenge("", "0");
				break;
			};

			if (!check_from()) {
				sl_send_reply("403","Forbidden");
				break;
			};

			if (isflagset(5)) {
				setflag(6);
			};
			if (!save("location")) {
				sl_reply_error();
			};
			break;
		};
		
		if (method=="INVITE") {
			if (!radius_proxy_authorize("")) {
				proxy_challenge("", "0");
				sl_send_reply("403", "That's not your home");
				break;
			};
			if (uri=~"sip:[0-9]{4,6}@") {
				if (is_user_in("To", "voicemail")) {
					setflag(8);
				};
				t_on_failure("1");
			};

			###lookup("aliases");

			consume_credentials();
			# just an example for dumps
			if (uri=~"sip:33241009@") {
				strip(4);
				subst('/sip:3324([0-9]+@.*)$/sip:\1/g');
			};

			if (!lookup("location")) {
				if (uri=~"sip:[0-9]{4,6}@") {
					if (!radius_proxy_authorize("")) {
						proxy_challenge("", "0");
						sl_send_reply("403", "That's not your home");
						break;
					};
					# voicemail OK 
					if ( isflagset(8) ) {
						prefix("u");
						setflag(1); # accounting
					} else {
						sl_send_reply("404", "Not Found");
						break;
					};

					t_on_reply("1");
					if (method=="INVITE") {
						use_media_proxy();
						setflag(7);
					};

					rewritehostport("vm-box:5060");
					if (!t_relay()) {
						if (method=="INVITE" || method=="ACK") {
							end_media_session();
						};
						sl_reply_error();
					}
					break;
				} else {
					route(1);
					break;
				};
			};
			t_on_reply("1");
			if (method=="INVITE") {
				use_media_proxy();
				setflag(7);
			};
		};
		setflag(1); # accounting
		setflag(2); # missed call
	};
	
	if (!t_relay()) {
		if (method=="INVITE" || method=="ACK") {
			end_media_session();
		};
		sl_reply_error();
	};

}

route[1] {
	if (method=="INVITE") {
		if (!radius_proxy_authorize("")) {
			proxy_challenge("", "0");                              
			sl_send_reply("403", "That's not your home");
			break;
		}; 

		if (uri=~"sip:0[0-9]{6,20}@") {
			if (exec_dset("/usr/local/etc/ser/dialgent;echo>/dev/null")) {
				setflag(1); # accounting
				if (!t_relay()) {
					if (method=="INVITE" || method=="ACK") {
						end_media_session();
					};
					sl_reply_error();
				};
			};
			break;
		} else {
			sl_send_reply("404", "Not Found");
			break;
		};
	}
}

onreply_route[1] {
	if (isflagset(6)) {
		fix_contact();
	}
	if ( (status=~"200" || status=~"183") ) {
		use_media_proxy();
	};
}

failure_route[1] {
	if ( isflagset(8) ) {
		if(t_check_status("486")){
			prefix("b");
		} else {
			prefix("u");
		};
		rewritehostport("vm-box:5060");
		append_branch();
		if (!t_relay()) {
			if (method=="INVITE" || method=="ACK") {
				end_media_session();
			};
		};
		break;
	}; 

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