#!/bin/sh /etc/rc.common

# SVN: $Id: cmh-ra 13196 2014-11-28 12:58:54Z florin $

# Copyright (C) 2008 Mi Casa Verde, Inc., a Nevada Corporation
#                     www.micasaverde.com
#            1 - 702 - 4879770 / 866 - 966 - casa
# This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License.
# This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
# without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

START=997
STOP=43

#set -x

INIT_SCRIPT=0

init_script()
{
        [ $INIT_SCRIPT -eq 1 ] && return

        # Skip it if we're on batteries.
        if [ -f /tmp/.running_on_batteries ]; then
                echo "Running on batteries. Skipping..."
                exit 0
        fi

        MIOS_CONSTANTS_FILE="$(dirname $0)/../../mios_constants.sh"
        [ -f "$MIOS_CONSTANTS_FILE" ] && source "$MIOS_CONSTANTS_FILE" || echo "FILE-NOT-FOUND: mios_constants.sh"

        log_to="both"; log_file="$MIOS_LOGS_PATH/log.cmh-ra"; log_as="cmh-ra"
        [ -f "$MIOS_FUNCTIONS_FILE" ] && source "$MIOS_FUNCTIONS_FILE" || echo "FILE-NOT-FOUND: functions.sh"

        export Ppid=$PPID
        export PPpid=$(awk '/^PPid:/ {print $2}' /proc/$Ppid/status)
        get_app_name_from_pid() {
                [ -n "$1" ] && cat /proc/$1/cmdline | tr '\0' ' '
        }

        log_START "$log_as $* from $(get_app_name_from_pid $Ppid)[$Ppid] with parent $(get_app_name_from_pid $PPpid)[$PPpid]"

        get_lock -t 1 "cmh-ra" || exit # Don't wait for the other cmh-ra process to stop, exit (almost) immediately.

        FACTORY_TEST_REQUIRED_FILE="$MIOS_TMP_PATH/.factory_test_required"
        [ -f "$FACTORY_TEST_REQUIRED_FILE" ] && log_DIE "Unit has not passed factory testing."

        INIT_SCRIPT=1
}


get_ra_port()
{
        [ -f "$MIOS_FUNCTIONS_REST_FILE" ] && source "$MIOS_FUNCTIONS_REST_FILE" || echo "FILE-NOT-FOUND: functions_rest.sh"

        log "Getting cmh-ra port"
        local restOutput
        restOutput=$(MiOSRestApi.sh GetRaPort -p Type=$PORT_TYPE_CMH_RA -p CheckRAPortSession=1 -rs -rk)
        local restExitCode=$?
        local restResponseFile=$(echo $restOutput | awk '{ print $1 }')

        if [ -s "$restResponseFile" ]; then
                local restResponse=$(cat "$restResponseFile" 2>/dev/null)
                rm -f $restResponseFile
        fi

        if [ $restExitCode -ne 0 ]; then
                log_DIE "Failed to get cmh-ra port, reason: $restResponse, MiOSRestApi exit code: $restExitCode"
        fi

        RelayServer=$(echo $restOutput | awk '{ print $2 }')
        [ -z "$RelayServer" ] && log_DIE "Server not found in output: $restOutput."
        MmsSession=$(echo $restOutput | awk '{ print $3 }')
        [ -z "$MmsSession" ] && log_DIE "Session key not found in output: $restOutput."

        RaPort=$(rest_get_param_json Port "$restResponse")
        if [ -z "$RaPort" ] || [ -n "${RaPort//[0-9]/}" ] || [ $RaPort -gt 65535 ] || [ $RaPort -lt 1 ]; then
                log_DIE "Got invalid port: $restResponse"
        fi
        log_SUCCESS "Got port: $RaPort"
}


get_ssh_pids()
{
        local pids
        local sshPids=$(ps ax | grep -v "grep" | grep "ssh" | awk '{ print $1 }')
        log "Found running ssh pids: $sshPids"
        local sshPpid
        for sshPid in $sshPids; do
                sshPpid=$(cat /proc/$sshPid/status 2>/dev/null | awk '/PPid/ { print $2 }')
                if cat /proc/$sshPpid/cmdline 2>/dev/null | grep -q "cmh-ra-daemon"; then
                        log "Found cmh-ra tunnel with pid: $sshPid, and parent pid: $sshPpid"
                        pids="$pids $sshPid"
                fi
        done
        echo "$pids"
}


get_cmh_ra_daemon_pids()
{
        local dPids=$(ps ax | grep -v "grep" | grep "cmh-ra-daemon.sh" | awk '{ print $1 }')
        log "Found running cmh-ra-daemon pids: $dPids"
        echo "$dPids"
}


start()
{
        init_script

        # Check RA permission.
        [ -f "$MIOS_SERVICES_FILE" ] && source "$MIOS_SERVICES_FILE" || log "FILE-NOT-FOUND: services.conf"
        if [ "$Permissions_Relay" == 0 ]; then
                log "Permissions_Relay is $Permissions_Relay. We won't start the cmh-ra tunnel"
                exit 1
        fi

        get_ra_port

        log "Starting cmh-ra-daemon.sh"
        # RelayServer, RaPort and MmsSession are defined in get_ra_port
        cmh-ra-daemon.sh "127.0.0.1" 80 "$RelayServer" "$RaPort" "$MmsSession" 1>/dev/null 2>&1 &
}


stop()
{
        init_script

        local daemonPids=$(get_cmh_ra_daemon_pids)
        local sshPids=$(get_ssh_pids)

        if [ -n "$daemonPids" ]; then
                log "Stopping cmh-ra-daemon pids: $daemonPids"
                kill $daemonPids
                sleep 2
                daemonPids=$(get_cmh_ra_daemon_pids)
                if [ -n "$daemonPids" ]; then
                        log "Force stopping cmh-ra-daemon pids: $daemonPids"
                        kill -9 $daemonPids
                fi
        fi

        if [ -n "$sshPids" ]; then
                log "Stopping cmh-ra tunnels with pids: $sshPids"
                kill $sshPids 2>>$log_file
                sleep 2
                sshPids=$(get_ssh_pids)
                if [ -n "$sshPids" ]; then
                        log "Force stopping cmh-ra tunnels with pids: $sshPids"
                        kill -9 $sshPids
                fi
        fi

        local unitModel=$(get_unit_model)
        case $unitModel in
                "Sercomm NA930"|"Sercomm NA301")
                        set_led.sh off service
                        ;;
        esac
}


restart()
{
        stop
        sleep 2
        start
}