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#!/bin/bash
# Nagios script for LiteSpeed 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##*/}
LITESPEED_VERSION_URL="https://update.litespeedtech.com/ws/latest.php"
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 LiteSpeed "
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: $1"
print_usage
exit 3
;;
esac
shift
done
# Get current LiteSpeed version;
CURRENT_VERSION=$(/usr/local/lsws/bin/litespeed -v)
check_command_result "/usr/local/lsws/bin/litespeed -v"
# Get available latest LiteSpeed version;
AVAILABLE_VERSION=$(curl ${LITESPEED_VERSION_URL})
check_command_result "curl ${LITESPEED_VERSION_URL}"
# Parse current LiteSpeed verion from common string;
RESULT_CURRENT_VERSION=$(awk -F" " '{print $1}' <<< ${CURRENT_VERSION})
check_command_result "awk"
RESULT_CURRENT_VERSION=$(awk -F"/" '{print $2}' <<< ${RESULT_CURRENT_VERSION})
check_command_result "awk"
# Parse latest stable LiteSpeed version from common string;
RESULT_AVAILABLE_VERSION=$(awk -F"LSWS_STABLE=" '{print $2}' <<< ${AVAILABLE_VERSION})
check_command_result "awk"
RESULT_AVAILABLE_VERSION=$(echo "${AVAILABLE_VERSION}" | grep -oP 'LSWS_STABLE=\K[^ ]+')
check_command_result "awk"
if [[ ${VERBOSE} == 1 ]]; then
echo -e "\n\t[VERBOSE INFORMATION, begin]\n"
echo "Current version, full string: [${CURRENT_VERSION}]"
echo "Available version, full list (curl response): [${AVAILABLE_VERSION}]"
echo "Parsed current version string: [${RESULT_CURRENT_VERSION}]"
echo "Parsed all versions string: [${RESULT_AVAILABLE_VERSION}]"
echo -e "\n\t[ VERBOSE INFORMATION, end ]\n"
fi
# Check curl data;
if [[ ${AVAILABLE_VERSION} != *"LSWS_STABLE"* ]]; then
echo "CRITICAL: curl response didn't contain LSWS_STABLE data."
exit 2
fi
# Final check;
if [[ "${RESULT_CURRENT_VERSION}" == "${RESULT_AVAILABLE_VERSION}" ]]; then
echo "OK: LiteSpeed version is updated: [${RESULT_AVAILABLE_VERSION}]"
exit 0
else
echo "CRITICAL: LiteSpeed version is outdated, latest version: [${RESULT_AVAILABLE_VERSION}]"
exit 2
fi