#!/bin/sh /etc/rc.common
# Copyright (C) 2008 Alina Friedrichsen
# Copyright (C) 2011 OpenWrt.org

START=50

SERVICE_USE_PID=1

siproxd_bin="/usr/sbin/siproxd"
siproxd_conf_dir="/var/etc/siproxd"
siproxd_conf_prefix="$siproxd_conf_dir/siproxd-"
siproxd_registration_dir="/var/lib/siproxd"
siproxd_registration_prefix="$siproxd_registration_dir/siproxd-"
siproxd_pid_dir="/var/run/siproxd"

append_conf_if_set() {
	local _val=$(eval "echo \$`echo $1`")
	[ -n "$_val" ] &&
	echo "$1" = "$_val" >> "$siproxd_conf_prefix$cfg.conf"
}

deal_with_lists () {
	echo "$2" = "$1" >> "$siproxd_conf_prefix$cfg.conf"
}

start_instance() {
	local cfg="$1"
	local _int_inbound
	local _int_outbound
	local _dev_inbound
	local _dev_outbound

	config_get _int_inbound "$cfg" interface_inbound
	config_get _int_outbound "$cfg" interface_outbound

	scan_interfaces
	network_get_physdev _dev_inbound $_int_inbound
	network_get_physdev _dev_outbound $_int_outbound

	config_load 'siproxd'
	config_get if_inbound "$cfg" if_inbound $_dev_inbound
	config_get if_outbound "$cfg" if_outbound $_dev_outbound

	config_get host_outbound "$cfg" host_outbound
	config_get hosts_allow_reg "$cfg" hosts_allow_reg
	config_get hosts_allow_sip "$cfg" hosts_allow_sip
	config_get hosts_deny_sip "$cfg" hosts_deny_sip
	config_get sip_listen_port "$cfg" sip_listen_port 5060
	config_get_bool daemonize "$cfg" daemonize 1
	config_get silence_log "$cfg" silence_log 1
	config_get user "$cfg" user nobody
	config_get chrootjail "$cfg" chrootjail
	config_get registration_file "$cfg" registration_file "$siproxd_registration_prefix$cfg.reg"
	config_get autosave_registrations "$cfg" autosave_registrations 300
	config_get pid_file "$cfg" pid_file "$siproxd_pid_dir/siproxd-$cfg.pid"
	config_get_bool rtp_proxy_enable "$cfg" rtp_proxy_enable 1
	config_get rtp_port_low "$cfg" rtp_port_low 7070
	config_get rtp_port_high "$cfg" rtp_port_high 7089
	config_get rtp_timeout "$cfg" rtp_timeout 300
	config_get rtp_dscp "$cfg" rtp_dscp 46
	config_get sip_dscp "$cfg" sip_dscp 0
	config_get rtp_input_dejitter "$cfg" rtp_input_dejitter 0
	config_get rtp_output_dejitter "$cfg" rtp_output_dejitter 0
	config_get tcp_timeout "$cfg" tcp_timeout 600
	config_get tcp_connect_timeout "$cfg" tcp_connect_timeout 500
	config_get tcp_keepalive "$cfg" tcp_keepalive 20
	config_get default_expires "$cfg" default_expires 600
	config_get proxy_auth_realm "$cfg" proxy_auth_realm
	config_get proxy_auth_passwd "$cfg" proxy_auth_passwd
	config_get proxy_auth_pwfile "$cfg" proxy_auth_pwfile
	config_get debug_level "$cfg" debug_level 0x00000000
	config_get debug_port "$cfg" debug_port 0
	config_get mask_host "$cfg" mask_host
	config_get masked_host "$cfg" masked_host
	config_get ua_string "$cfg" ua_string Siproxd-UA
	config_get use_rport "$cfg" use_rport 0
	config_get outbound_proxy_host "$cfg" outbound_proxy_host
	config_get outbound_proxy_port "$cfg" outbound_proxy_port

	if [ -f "$siproxd_conf_prefix$cfg.conf" ]; then
		rm "$siproxd_conf_prefix$cfg.conf"
	fi
	echo "# auto-generated config file from /etc/config/siproxd" > "$siproxd_conf_prefix$cfg.conf"

	append_conf_if_set if_inbound
	append_conf_if_set if_outbound
	append_conf_if_set host_outbound
	append_conf_if_set hosts_allow_reg
	append_conf_if_set hosts_allow_sip
	append_conf_if_set hosts_deny_sip
	append_conf_if_set sip_listen_port
	append_conf_if_set daemonize
	append_conf_if_set silence_log
	append_conf_if_set user
	if [ -n "$chrootjail" ]; then
		if [ ! -d "$chrootjail" ]; then
			mkdir -p "$chrootjail"
			chmod 0755 "$chrootjail"
		fi
		append_conf_if_set chrootjail
	fi
	append_conf_if_set registration_file
	append_conf_if_set autosave_registrations

	append_conf_if_set pid_file
	append_conf_if_set rtp_proxy_enable
	append_conf_if_set rtp_port_low
	append_conf_if_set rtp_port_high
	append_conf_if_set rtp_timeout
	append_conf_if_set rtp_dscp
	append_conf_if_set sip_dscp
	append_conf_if_set rtp_input_dejitter
	append_conf_if_set rtp_output_dejitter
	append_conf_if_set tcp_timeout
	append_conf_if_set tcp_connect_timeout
	append_conf_if_set tcp_keepalive
	append_conf_if_set default_expires
	append_conf_if_set proxy_auth_realm
	append_conf_if_set proxy_auth_passwd
	append_conf_if_set proxy_auth_pwfile
	append_conf_if_set debug_level
	append_conf_if_set debug_port
	append_conf_if_set mask_host
	append_conf_if_set masked_host
	append_conf_if_set ua_string
	append_conf_if_set use_rport
	append_conf_if_set outbound_proxy_host
	append_conf_if_set outbound_proxy_port
	config_list_foreach "$cfg" 'outbound_domain_name' deal_with_lists "outbound_domain_name"
	config_list_foreach "$cfg" 'outbound_domain_host' deal_with_lists "outbound_domain_host"
	config_list_foreach "$cfg" 'outbound_domain_port' deal_with_lists "outbound_domain_port"

	# handle plugins
	config_get plugindir "$cfg" plugindir "/usr/lib/siproxd/"
	append_conf_if_set plugindir

	config_list_foreach "$cfg" 'load_plugin' deal_with_lists "load_plugin"

	# plugin_demo.so
	config_get plugin_demo_string "$cfg" plugin_demo_string
	append_conf_if_set plugin_demo_string

	# plugin_shortdial.so
	config_get plugin_shortdial_akey "$cfg" plugin_shortdial_akey
	append_conf_if_set plugin_shortdial_akey
	config_list_foreach "$cfg" 'plugin_shortdial_entry' deal_with_lists "plugin_shortdial_entry"

	# plugin_defaulttarget.so
	config_get_bool plugin_defaulttarget_log "$cfg" plugin_defaulttarget_log
	append_conf_if_set plugin_defaulttarget_log
	config_get plugin_defaulttarget_target "$cfg" plugin_defaulttarget_target
	append_conf_if_set plugin_defaulttarget_target

	# plugin_fix_bogus_via.so
	config_get plugin_fix_bogus_via_networks "$cfg" plugin_fix_bogus_via_networks
	append_conf_if_set plugin_fix_bogus_via_networks

	# plugin_stun.so
	config_get plugin_stun_server "$cfg" plugin_stun_server
	append_conf_if_set plugin_stun_server
	config_get plugin_stun_port "$cfg" plugin_stun_port
	append_conf_if_set plugin_stun_port
	config_get plugin_stun_period "$cfg" plugin_stun_period
	append_conf_if_set plugin_stun_period

	# plugin_prefix.so
	config_get plugin_prefix_akey "$cfg" plugin_prefix_akey
	append_conf_if_set plugin_prefix_akey

	# plugin_regex.so
	config_list_foreach "$cfg" 'plugin_regex_desc' deal_with_lists "plugin_regex_desc"
	config_list_foreach "$cfg" 'plugin_regex_pattern' deal_with_lists "plugin_regex_pattern"
	config_list_foreach "$cfg" 'plugin_regex_replace' deal_with_lists "plugin_regex_replace"

	# plugin_stripheader.so
	config_list_foreach "$cfg" 'plugin_stripheader_remove' deal_with_lists "plugin_stripheader_remove"

	# plugin_codecfilter.so
	config_list_foreach "$cfg" 'plugin_codecfilter_blacklist' deal_with_lists "plugin_codecfilter_blacklist"

	# plugin_siptrunk.so
	config_list_foreach "$cfg" 'plugin_siptrunk_name' deal_with_lists "plugin_siptrunk_name"
	config_list_foreach "$cfg" 'plugin_siptrunk_account' deal_with_lists "plugin_siptrunk_account"
	config_list_foreach "$cfg" 'plugin_siptrunk_numbers_regex' deal_with_lists "plugin_siptrunk_numbers_regex"

	# plugin_fix_DTAG.so
	config_get plugin_fix_DTAG_networks "$cfg" plugin_fix_DTAG_networks
	append_conf_if_set plugin_fix_DTAG_networks

	# plugin_fix_fbox_anoncall.so
	config_get plugin_fix_fbox_anoncall_networks "$cfg" plugin_fix_fbox_anoncall_networks
	append_conf_if_set plugin_fix_fbox_anoncall_networks

	SERVICE_PID_FILE="$pid_file" \
	service_start $siproxd_bin --config "$siproxd_conf_prefix$cfg.conf"
}

stop_instance() {
	local cfg="$1"

	config_get pid_file "$cfg" pid_file "$siproxd_pid_dir/siproxd-$cfg.pid"

	SERVICE_PID_FILE="$pid_file" \
	service_stop $siproxd_bin
}

start() {
	mkdir -p "$siproxd_conf_dir"
	chmod 755 "$siproxd_conf_dir"

	mkdir -p "$siproxd_registration_dir"
	chmod 700 "$siproxd_registration_dir"
	chown nobody:nogroup "$siproxd_registration_dir"

	mkdir -p "$siproxd_pid_dir"
	chmod 700 "$siproxd_pid_dir"
	chown nobody:nogroup "$siproxd_pid_dir"

	include /lib/network
	. /lib/functions/network.sh
	config_load 'siproxd'
	config_foreach start_instance 'siproxd'
}

stop() {
	config_load 'siproxd'
	config_foreach stop_instance 'siproxd'
}