#
# OpenSIPS residential configuration script
#     by OpenSIPS Solutions <team@opensips-solutions.com>
#
# This script was generated via "make menuconfig", from
#   the "Residential" scenario.
# You can enable / disable more features / functionalities by
#   re-generating the scenario with different options.#
#
# Please refer to the Core CookBook at:
#      https://opensips.org/Resources/DocsCookbooks
# for a explanation of possible statements, functions and parameters.
#


####### Global Parameters #########

/* uncomment the following lines to enable debugging */
#debug_mode=yes

log_level=1
xlog_level=1
log_stderror=yes
log_facility=LOG_LOCAL0

udp_workers=8

/* uncomment the next line to enable the auto temporary blacklisting of 
   not available destinations (default disabled) */
#disable_dns_blacklist=no

/* uncomment the next line to enable IPv6 lookup after IPv4 dns 
   lookup failures (default disabled) */
#dns_try_ipv6=yes


socket=udp:10.0.0.10:5060   # CUSTOMIZE ME



####### Modules Section ########

#set module path
mpath="modules/"

#### SIGNALING module
loadmodule "signaling.so"

#### StateLess module
loadmodule "sl.so"

#### Transaction Module
loadmodule "tm.so"
modparam("tm", "fr_timeout", 5)
modparam("tm", "fr_inv_timeout", 30)
modparam("tm", "restart_fr_on_each_reply", 0)
modparam("tm", "onreply_avp_mode", 1)

#### Record Route Module
loadmodule "rr.so"
/* do not append from tag to the RR (no need for this script) */
modparam("rr", "append_fromtag", 0)

#### MAX ForWarD module
loadmodule "maxfwd.so"

#### SIP MSG OPerationS module
loadmodule "sipmsgops.so"

loadmodule "b2b_entities.so"
modparam("b2b_entities", "server_hsize", 16)
modparam("b2b_entities", "client_hsize", 16)
##modparam("b2b_entities", "script_req_route", "niso_request_entities")
modparam("b2b_entities", "db_mode", 0)


loadmodule "b2b_logic.so"
#modparam("b2b_logic", "use_init_sdp", 1)
modparam("b2b_logic", "hash_size", 12)
#modparam("b2b_logic", "custom_headers_regexp", "/^X-/")
#modparam("b2b_logic", "custom_headers", "Privacy;P-Asserted-Identity;Diversion;P-Early-Media;Reason;Date;Identity")
#modparam("b2b_logic", "b2bl_from_spec_param", "$var(b2bl_from)")
#modparam("b2b_logic", "init_callid_hdr", "X-uuid")
modparam("b2b_logic", "server_address", "sip:uas@127.0.0.1:5060")
modparam("b2b_logic", "db_mode", 0)
modparam("b2b_logic", "script_req_route", "b2bl_request")
#modparam("b2b_logic", "script_reply_route", "niso_reply")
modparam("b2b_logic", "cleanup_period", 10)


#### FIFO Management Interface
loadmodule "mi_fifo.so"
modparam("mi_fifo", "fifo_name", "/tmp/opensips_fifo")
modparam("mi_fifo", "fifo_mode", 0666)

#### USeR LOCation module
loadmodule "usrloc.so"
modparam("usrloc", "nat_bflag", "NAT")
modparam("usrloc", "working_mode_preset", "single-instance-no-db")

#### REGISTRAR module
loadmodule "registrar.so"
modparam("registrar", "tcp_persistent_flag", "TCP_PERSISTENT")
/* uncomment the next line not to allow more than 10 contacts per AOR */
#modparam("registrar", "max_contacts", 10)

#### ACCounting module
loadmodule "acc.so"
/* what special events should be accounted ? */
modparam("acc", "early_media", 0)
modparam("acc", "report_cancels", 0)
/* by default we do not adjust the direct of the sequential requests.
   if you enable this parameter, be sure to enable "append_fromtag"
   in "rr" module */
modparam("acc", "detect_direction", 0)

loadmodule "proto_udp.so"

####### Routing Logic ########

# main request routing logic

route {
	if (has_totag())
		$var(mid_dlg) = "mid-dialog";
	else
		$var(mid_dlg) = "initial";

	xlog("L_INFO", "[$ci] $rm ($var(mid_dlg)) in script ...\n");

    if (is_method("INVITE") && !has_totag()) {
		# choose an initial state and save it in context
		$b2b_logic.ctx(state) = "1";

		# save the original destination in context
		$b2b_logic.ctx(operator_uri) = $ru;

		# create the server entity
		b2b_server_new("customer");

		# create the initial client entity, to connect the customer to the media server
		b2b_client_new("media", "sip:10.0.0.11:7060");

		# initialize B2B session for the "marketing" scenario
		b2b_init_request("marketing");
		exit;
	}

	xlog("L_INFO", "[$ci] $rm (script ended)\n");
}


route [b2bl_request]
{
	xlog("L_INFO", "[$ci] B2B request!! ($rm)\n");

	if ($rm != "BYE" || $b2b_logic.ctx(state) == "2" || $b2b_logic.entity(id) != "media") {
		# for requests other than REFER, no special actions needs to be done,
		# just pass the request to the peer

		# same for BYE requests for which no special scenario action is required
		b2b_pass_request();
		exit;
	}

	# we are in the initial state (customer connected to media server)
	# and the BYE is from the media server -> connect the customer with the operator

	# end dialog with the media server
	b2b_send_reply(200, "OK");
	b2b_delete_entity();

	# create the client entity corresponding to the operator,
	# take the URI of the destination from the context
	b2b_client_new("operator", $b2b_logic.ctx(operator_uri));

	# trigger the bridging action
	b2b_bridge("customer", "operator");

	# save the next state in context
	$b2b_logic.ctx(state) = "2";
}