######################################################################
# SER Config File
######################################################################
######################################################################
# Global prams
######################################################################

/* Uncomment these lines to enter debugging mode
debug=7
fork=no
log_stderror=yes
*/

check_via=no    # (cmd. line: -v)
dns=no           # (cmd. line: -r)
rev_dns=no      # (cmd. line: -R)
#port=5060
#children=4
fifo="/tmp/ser_fifo"

######################################################################
# Load Modules
######################################################################

loadmodule "/usr/lib/ser/modules/mysql.so"   	/*MySQL DB Module*/
loadmodule "/usr/lib/ser/modules/sl.so"      	/*Stateless routing*/
loadmodule "/usr/lib/ser/modules/tm.so"      	/*Statefull routing*/
loadmodule "/usr/lib/ser/modules/rr.so"      	/*Record Routing*/
loadmodule "/usr/lib/ser/modules/maxfwd.so"  	/*Max-fwd header logic*/
loadmodule "/usr/lib/ser/modules/usrloc.so"  	/*User Location*/
loadmodule "/usr/lib/ser/modules/registrar.so"	/*SIP Register functions*/
loadmodule "/usr/lib/ser/modules/exec.so"    	/*Execute external
commands*/
loadmodule "/usr/lib/ser/modules/auth.so"    	/*User authentication*/
loadmodule "/usr/lib/ser/modules/auth_db.so" 	/*User auth. using MySQL
DB*/
loadmodule "/usr/lib/ser/modules/group.so"  	/*Group commands*/

######################################################################
# Module Params
######################################################################

# -- usrloc params --
modparam("usrloc", "db_mode", 2)
modparam("usrloc", "db_url", "sql://user:pass@localhost/ser")
# -- auth params --
modparam("auth_db", "db_url", "sql://user:pass@localhost/ser")
modparam("auth_db", "calculate_ha1", yes)
modparam("auth_db", "password_column", "password")
# -- rr params --
# add value to ;lr param to make some broken UAs happy
modparam("rr", "enable_full_lr", 0)
# -- group params --
modparam("group", "db_url", "sql://user:pass@localhost/ser")

######################################################################
# Server Aliases
######################################################################
alias="mcm.net.mx"
alias="X.X.81.94"

######################################################################
# Main Routing Logic
######################################################################

route{

	# Initial sanity checks 
	if (!mf_process_maxfwd_header("15")) {
		sl_send_reply("483","Too Many Hops");
		break;
	};
	if ( msg:len > max_len ) {
		sl_send_reply("513", "Message too big");
		break;
	};
	if (loose_route()) {
		setflag(2);
		t_relay();
		break;
	};
	record_route();

	# Registering routines
	if (method=="REGISTER") {
		if (!www_authorize("mcm.net.mx", "subscriber")) {
			www_challenge("mcm.net.mx", "0");
			log(1,"User Rejected, challenge sent.");
			break;
		};
		save("location");
		break;
	};

	# Check the source of call and auth. if required
	# If the call comes from the gateways, no authentication is
	# required (X.X.81.67 or X.X.84.67)
	if (src_ip==X.X.81.67 or src_ip==X.X.84.67) {
		# Check if the user accept calls
		log(1,"Call from pstn. \n");
	} else {
		if (method=="INVITE") {
			if (!proxy_authorize("mcm.net.mx", "subscriber")) {
				proxy_challenge("mcm.net.mx", "0");
				break;
			};
		}; # INVITE to authorized PSTN
	}

	# Routing plan
	if (uri=~"^sip:5559853[0-9][0-9][0-9]@.*") {
		if (!lookup("location")) {
			if (is_user_in("Request-URI", "hg")) {
				exec_dset("/usr/scripts/huntgroup2 $SIP_ORUI
1 ");
				if (uri=~"^sip:[0-9]+@.*") {
					append_branch();
					# Set fealiure route for Hunt Groups
					t_on_failure("1");
					t_relay();
				};
			} else {
				setflag(3);
				sl_send_reply("404", "Not Found");
				break;
			};
		} else {
			if ( is_user_in("Request-URI", "hg") ) {
				# Set fealiure route for Hunt Groups
				t_on_failure("1");
			};
			# Try to send call to dest.
			if (!t_relay()) {
				sl_reply_error();
			};
		};
	# Forward numeric uri's to PSTN gateways
	} else if (uri=~"^sip:[0|1|2|3|5|8|9][0-9]*@.*") {
		rewritehost("X.X.81.67");
		t_relay();
	} else {
		sl_send_reply("403", "Call cannot be served here");
		break;
	};
}

# Hunt group routes
failure_route[1] {
	log(1,"First number bysy, try next.\n");
	# forwarding failed -- try again at another destination
	exec_dset("/usr/scripts/huntgroup2 $SIP_ORUI 1 ");
	append_branch();
	if (uri=~"^sip:[0-9]+@.*") {
		# Set next faliure route
		t_on_failure("2");
	};
	t_relay();
}

failure_route[2] {
	log(1,"Next number busy, try next.\n");
	# forwarding failed -- try again at another destination
	exec_dset("/usr/scripts/huntgroup2 $SIP_ORUI 0 ");
	append_branch();
	if (uri=~"^sip:[0-9]+@.*") {
		t_on_failure("2");
	};
	t_relay();
}
######################################################################
# End SER Config File
######################################################################