debug=3
fork=yes
log_stderror=no

listen=192.168.0.1  			#INSERT YOUR SIP SERVER IP HERE
#alias="domain.net"  			#INSERT YOUR ALIAS DOMAIN HERE
port=5060
children=7

dns=no
rev_dns=no
fifo="/tmp/ser_fifo"
fifo_mode=766
fifo_db_url="mysql://ser:heslo@localhost/ser"

sip_warning=yes
server_signature=no

#---------------- Modules -------------------
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/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/domain.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/xlog.so"

#----------------- Parameters -------------------
modparam("auth_db|domain|uri_db|usrloc", "db_url", "mysql://ser:heslo@localhost/ser")
modparam("auth_db", "calculate_ha1", 1)
modparam("auth_db", "password_column", "password")

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("usrloc", "db_mode", 2)

modparam("registrar", "nat_flag", 6)

modparam("rr", "enable_full_lr", 1)

#------------- Main Routing Block ----------------
route {

	# -----------------------------------------------------------------
	# Sanity Check Section
	# -----------------------------------------------------------------
	if (!mf_process_maxfwd_header("10")) {
		xlog("L_WARN", "[%Tf]: loop detected; method=%rm\n");
		sl_send_reply("483", "Too Many Hops");
		break;
	};

	if (msg:len > max_len) {
		xlog("L_WARN", "[%Tf]: message too big; length=%ml; from=%fu; IP=%is\n");
		sl_send_reply("513", "Message Overflow");
		break;
	};

	# -----------------------------------------------------------------
	# Record Route Section
	# -----------------------------------------------------------------
	if(method=="INVITE" && client_nat_test("3")) {
		xlog("L_WARN", "[%Tf]: NAT detected; method=%rm; from=%fu\n");
		record_route_preset("192.168.0.1:5060;nat=yes");	#INSERT YOUR SIP SERVER IP HERE
	}
	else if(method!="REGISTER") {
		record_route();
	};
	
	# -----------------------------------------------------------------
	# Call Teardown Section
	# -----------------------------------------------------------------
	if(method=="BYE" || method=="CANCEL") {
		end_media_session();
	};

	# -----------------------------------------------------------------
	# Loose Route Section
	# -----------------------------------------------------------------
	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 Section
	# -----------------------------------------------------------------
	if (uri!=myself) {
		route(4);
		route(1);
		break;
	};

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

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

	if (!lookup("location")) {
		sl_send_reply("404", "User Not Found");
		break;
	};

	route(1);
}

route[1] {

	# -----------------------------------------------------------------
	# Default Message Handler
	# -----------------------------------------------------------------

	t_on_reply("1");

	if (!t_relay()) {

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

		sl_reply_error();
	};
}

route[2] {

	# -----------------------------------------------
	# REGISTER Message Handler
	# -----------------------------------------------

	sl_send_reply("100", "Trying");

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

	if (!www_authorize("mysip.domain.net", "subscriber")) { 	#INSERT YOUR DOMAIN/REALM HERE
		www_challenge("mysip.domain.net", "0"); 				#INSERT YOUR DOMAIN/REALM HERE
		break;
	} 

	if (!check_to()) {
		xlog("L_WARN", "[%Tf]: possible uri spoofing attempt!; method=%rm; IP=%is; from=%fu; to=%tu\n");	
		sl_send_reply("403", "Forbidden");
		break;
	};

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

route[3] {

	# -----------------------------------------------------------------
	# INVITE Message Handler
	# -----------------------------------------------------------------

	if (!proxy_authorize("mysip.domain.net", "subscriber")) { 	#INSERT YOUR DOMAIN/REALM HERE
		proxy_challenge("mysip.domain.net", "0"); 				#INSERT YOUR DOMAIN/REALM HERE
		break;
	} 
	else if (!check_from()) {
		xlog("L_WARN", "[%Tf]: possible uri spoofing attempt!; method=%rm; IP=%is; from=%fu; to=%tu\n");	
		sl_send_reply("403", "Forbidden. Unregistered users not allowed!");
		break;
	};

	consume_credentials();

	if(client_nat_test("3") ) {
		setflag(7);
		force_rport();
		fix_nated_contact();
	};
	
	lookup("aliases");
	if (uri!=myself) {
		route(4);
		route(1);
		break;
	};

	if (!lookup("location")) {
		sl_send_reply("404", "User Not Found");
		break;
	};

	route(4);	
	route(1);
}

route[4] {
	
	# -----------------------------------------------------------------
	# NAT Traversal Handler
	# -----------------------------------------------------------------

	if(isflagset(6) || isflagset(7) ) {
		use_media_proxy();
	};
}

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();
	};
}