132 lines
4.0 KiB
Bash
Executable File
132 lines
4.0 KiB
Bash
Executable File
#!/usr/bin/env bash
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# Test connections
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BASE_FOLDER=$(dirname "$(readlink -f "$0")")"/";
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# config folder
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CONFIG_BASE="${BASE_FOLDER}../config/";
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# timestamps of last rotate per user/host
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LAST_ROTATE="${BASE_FOLDER}../last-rotate/";
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HOST_ONLY="";
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USER_ONLY="";
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while getopts ":h:u:" opt; do
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case "${opt}" in
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h) # hostname
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HOST_ONLY="${OPTARG}";
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;;
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u) # username
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USER_ONLY="${OPTARG}";
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;;
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\?)
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echo -e "\n Option does not exist: ${OPTARG}\n";
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echo "-h override single host name";
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echo "-u override user name for a host";
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echo ""
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exit 1;
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;;
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esac
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done
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# load config
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if [ ! -f "${CONFIG_BASE}settings.ini" ]; then
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echo "Missing 'settings.ini' file in ${CONFIG_BASE}";
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exit;
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fi
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# shellcheck source=../config/settings.ini
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# shellcheck disable=SC1094
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source <(grep "=" "${CONFIG_BASE}settings.ini" | sed 's/ *= */=/g')
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if [ -z "${key_age}" ]; then
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echo "A minimnum key age in days must be set in the settings";
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exit;
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fi
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if [ -z "${server_list}" ]; then
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echo "No server list is defined in the settings";
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exit;
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fi;
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# we must have "server_list" set and file must be in config folder
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if [ ! -f "${CONFIG_BASE}${server_list}" ]; then
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echo "Cannot find ${server_list} file in the config folder";
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exit;
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fi
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SSH="ssh -a -x -n";
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# date command
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datecmd="date";
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if date --version 2>&1 | grep -qi "date: illegal option"; then
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# if this is macOS date, see if gdate exists and use this one
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type gdate >/dev/null || error "macOS date does not support -d and no GNU date installed";
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datecmd="gdate";
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fi
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TEST_STRING="TEST";
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ERROR=0;
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WARNING=0;
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while read -r line; do
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if [[ "${line}" =~ ^\# ]]; then
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continue;
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fi
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# hostname is on pos 1
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hostname=$(echo "${line}" | cut -d "," -f 1);
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# if hostname opt set and not matching skip
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if [ -n "${HOST_ONLY}" ] && [ "${HOST_ONLY}" != "${hostname}" ]; then
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continue;
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fi
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# login user name
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username=$(echo "${line}" | cut -d "," -f 2);
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# if username opt set and not matching skip
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if [ -n "${USER_ONLY}" ] && [ "${USER_ONLY}" != "${username}" ]; then
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continue;
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fi
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echo -n "[:] Test connection to: ${username}@${hostname}: ";
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response=$(${SSH} -S none "${username}"@"${hostname}" echo "${TEST_STRING}");
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if [ "${response}" = "${TEST_STRING}" ]; then
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# get the SSH key with "${username}"@"${hostname}": YYYY-MM-DD to confirm the correct one is set
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current_ssh_key=$(
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${SSH} -S none "${username}"@"${hostname}" grep "${username}@${hostname}: " /etc/ssh/authorized_keys--master | cut -d " " -f 3,4
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);
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# extract username@hostname and create date
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current_user_hostname=$(echo "${current_ssh_key}" | cut -d ":" -f 1);
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current_date=$(echo "${current_ssh_key}" | cut -d ":" -f 2);
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current_date=${current_date//[[:blank:]]/};
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rotate_date="";
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if [ -f "${LAST_ROTATE}${hostname}_${username}.last-rotate" ]; then
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# load last rotate timestamp and get YYYY-MM-DD
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rotate_date=$(${datecmd} -d "@$(cat "${LAST_ROTATE}${hostname}_${username}.last-rotate")" +%F);
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fi
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# check for diff in username / hostname
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warning_string=""
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if [ "${current_user_hostname}" != "${username}@${hostname}" ]; then
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warning_string="User/Hostname does not match: ${current_user_hostname}";
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fi
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# check for creation date diff
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if [ "${rotate_date}" != "${current_date}" ]; then
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if [ -n "${warning_string}" ]; then
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warning_string="${warning_string}, ";
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fi
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warning_string="${warning_string}${rotate_date} != ${current_date}";
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fi
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# print out warning or ok
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if [ -n "${warning_string}" ]; then
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echo "[WARNING] ${warning_string}";
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WARNING=1;
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else
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echo "[OK]";
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fi
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else
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echo ""
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echo "[!] FAILURE: ${response}";
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ERROR=1;
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fi
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done <<<"$(sed 1d "${CONFIG_BASE}${server_list}")";
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if [ ${WARNING} -eq 1 ]; then
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echo "A warning has been found by either username/hostname string in the PEM key not matching to call username/hostname or the rotate date differs to the creation date from the PEM public key";
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fi
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if [ ${ERROR} -eq 1 ]; then
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echo "An error has been found. Some connection did not success, investigate and fix before removing old ssh keys";
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fi
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# __END__
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