#!/bin/bash

# Nagios script for LiteSpeed cache version check;
# Nagios status codes (Nagios expects one of these to be returned);
# OK = 0;
# WARNING = 1;
# CRITICAL = 2;
# UNKNOWN = 3;


function check_command_result() {
  if [ $? -eq 0 ]; then
    return
  else
    echo "CRITICAL: can't run command [${1}]"
    exit 2
  fi
}

VERBOSE=0
PROGNAME=${0##*/}

print_usage() {
    echo ""
    echo "Usage: ${PROGNAME} [-v be Verbose]"
    echo "Usage: ${PROGNAME} -h | --help"
}

print_help() {
        print_usage
        echo ""
        echo "This script checks latest version of LScache plugin"
        echo ""
        echo "-v be Verbose (should be last argument)"
        echo "--help Print this help screen"
        echo ""
        exit 3
}

while [ $# -gt 0 ]; do
        case "$1" in
        --help)
                print_help
                exit 3
                ;;
        -h)
                print_help
                exit 3
                ;;
        -v)
                VERBOSE=1; shift;shift
                ;;
        *)
                echo >&2 "Unknown argument: $1"
                print_usage
                exit 3
                ;;
        esac
        shift
done

#!/bin/bash

# Nagios script for LiteSpeed cache version check;
# Nagios status codes (Nagios expects one of these to be returned);
# OK = 0;
# WARNING = 1;
# CRITICAL = 2;
# UNKNOWN = 3;


function check_command_result() {
  if [ $? -eq 0 ]; then
    return
  else
    echo "CRITICAL: can't run command [${1}]"
    exit 2
  fi
}

VERBOSE=0
PROGNAME=${0##*/}

print_usage() {
    echo ""
    echo "Usage: ${PROGNAME} [-v be Verbose]"
    echo "Usage: ${PROGNAME} -h | --help"
}

print_help() {
        print_usage
        echo ""
        echo "This script checks latest version of LScache plugin"
        echo ""
        echo "-v be Verbose (should be last argument)"
        echo "--help Print this help screen"
        echo ""
        exit 3
}

while [ $# -gt 0 ]; do
        case "$1" in
        --help)
                print_help
                exit 3
                ;;
        -h)
                print_help
                exit 3
                ;;
        -v)
                VERBOSE=1; shift;shift
                ;;
        *)
                echo >&2 "Unknown argument: $1"
                print_usage
                exit 3
                ;;
        esac
        shift
done

# Get current LScache version;
CURRENT_VERSION=$(/usr/local/lsws/admin/misc/lscmctl setversion)
check_command_result "/usr/local/lsws/admin/misc/lscmctl"

# Get available latest LScache version;
AVAILABLE_VERSIONS=$(/usr/local/lsws/admin/misc/lscmctl setversion --list)
check_command_result "/usr/local/lsws/admin/misc/lscmctl"

# Get version from common current LScache string;
RESULT_CURRENT_VERSION=$(awk -F" " 'END{print $NF}' <<< ${CURRENT_VERSION})
check_command_result "awk"

# Get version from common all versions for LScache string;
RESULT_AVAILABLE_VERSION=$(echo "${AVAILABLE_VERSIONS}"| grep -oP '\d+\.\d+(\.\d+)*' | head -n 1)
check_command_result "awk"

# Delete waste point from result;
str_len=${#RESULT_CURRENT_VERSION}
if [ "${RESULT_CURRENT_VERSION:$((${str_len}-1)):1}" = "." ]
then
  RESULT_CURRENT_VERSION=${RESULT_CURRENT_VERSION:0:$((${str_len}-1))}
fi

if [[ ${VERBOSE} == 1 ]]; then
  echo -e "\n\t[VERBOSE INFORMATION, begin]\n"
  echo "Current version, full string: [${CURRENT_VERSION}]"
  echo "Available versions, full list: [${AVAILABLE_VERSIONS}]"
  echo "Parsed current version string: [${RESULT_CURRENT_VERSION}]"
  echo "Parsed all versions string: [${RESULT_AVAILABLE_VERSION}]"
  echo -e "\n\t[ VERBOSE INFORMATION, end ]\n"
fi

# Final check;
if [[ "${RESULT_CURRENT_VERSION}" == "${RESULT_AVAILABLE_VERSION}" ]]; then
    echo "OK: LScache plugin is updated: [${RESULT_AVAILABLE_VERSION}]"
    exit 0
else
    echo "CRITICAL: LScache plugin is outdated, latest version: [${RESULT_AVAILABLE_VERSION}]"
    exit 2
fi