#!/usr/bin/env bash script_name="$(basename $(realpath $0))" working_dir="$(dirname $(realpath $0))" conf_file="${working_dir}/conf/${script_name%%.*}.conf" LOCK_DIR="/tmp/${script_name%%.*}.LOCK" log_file="${LOCK_DIR}/${script_name%%.*}.log" # ---------- # Base Function(s) # ---------- clean_up() { # Perform program exit housekeeping rm -rf "$LOCK_DIR" blank_line exit $1 } echononl(){ if $terminal ; then echo X\\c > /tmp/shprompt$$ if [ `wc -c /tmp/shprompt$$ | awk '{print $1}'` -eq 1 ]; then echo -e -n " $*\\c" 1>&2 else echo -e -n " $*" 1>&2 fi rm /tmp/shprompt$$ fi } fatal(){ echo "" if $terminal ; then echo -e " [ \033[31m\033[1mFatal\033[m ]: $*" echo "" echo -e " \033[31m\033[1mScript was interupted\033[m!" else echo " [ Fatal ]: $*" echo "" echo " Script was terminated...." fi echo "" clean_up 1 } error (){ echo "" if $terminal ; then echo -e " [ \033[31m\033[1mError\033[m ]: $*" else echo "[ Error ]: $*" fi echo "" } warn (){ echo "" if $terminal ; then echo -e " [ \033[33m\033[1mWarning\033[m ]: $*" else echo "[ Warning ]: $*" fi echo "" } warn_only_terminal () { if $terminal ; then echo "" echo -e "\t[ \033[33m\033[1mWarning\033[m ]: $*" echo "" fi } info (){ if $terminal ; then echo "" echo -e " [ \033[32m\033[1mInfo\033[m ] $*" echo "" fi } ok (){ if $terminal ; then echo "" echo -e " [ \033[32m\033[1mOk\033[m ] $*" echo "" fi } echo_done() { if $terminal ; then echo -e "\033[75G[ \033[32mdone\033[m ]" fi } echo_ok() { if $terminal ; then echo -e "\033[75G[ \033[32mok\033[m ]" fi } echo_warn() { if $terminal ; then echo -e "\033[75G[ \033[33mwarn\033[m ]" fi } echo_failed(){ if $terminal ; then echo -e "\033[75G[ \033[1;31mfailed\033[m ]" fi } echo_skipped() { if $terminal ; then echo -e "\033[75G[ \033[90m\033[1mskipped\033[m ]" fi } echo_wait(){ if $terminal ; then echo -en "\033[75G[ \033[5m\033[1m...\033[m ]" fi } trim() { local var="$*" var="${var#"${var%%[![:space:]]*}"}" # remove leading whitespace characters var="${var%"${var##*[![:space:]]}"}" # remove trailing whitespace characters echo -n "$var" } blank_line() { if $terminal ; then echo "" fi } is_number() { return $(test ! -z "${1##*[!0-9]*}" > /dev/null 2>&1); # - also possible # - #[[ ! -z "${1##*[!0-9]*}" ]] && return 0 || return 1 #return $([[ ! -z "${1##*[!0-9]*}" ]]) } # ---------- # - Some checks .. # ---------- # - Running in a terminal? # - if [[ -t 1 ]] ; then terminal=true else terminal=false fi # ========== # - Begin Main Script # ========== # ---------- # - Headline # ---------- if $terminal ; then clear echo "" echo -e "\033[1m----------\033[m" echo -e "\033[32m\033[1mRunning script \033[m\033[1m$script_name\033[32m .. \033[m" echo -e "\033[1m----------\033[m" fi # ---------- # Read Configurations from $conf_file # ---------- # - Give your default values here # - DEFAULT_MAIL_LOG="/var/log/mail.log" DEFAULT_CONFLICTING_SCRIPTS="" DEFAULT_COMPANY="O.OPEN" DEFAULT_CONTENT_TYPE='Content-Type: text/plain;\n charset="utf-8"' DEFAULT_SENDER_ADDRESS="${script_name%%.*}@$(hostname -f)" DEFAULT_ALERT_EMAIL_ADDRESSES="ckubu@oopen.de" if [[ -f "$conf_file" ]]; then source "$conf_file" else warn_only_terminal "No configuration file '$conf_file' present.\n Loading default values.." fi [[ -n "$MAIL_LOG" ]] || MAIL_LOG="${DEFAULT_MAIL_LOG}" [[ -n "$(trim $alert_email_addresses)" ]] || alert_email_addresses=("${DEFAULT_ALERT_EMAIL_ADDRESSES[@]}") if [[ ${#alert_email_addresses} -gt 0 ]] ; then for _email in $alert_email_addresses ; do alert_email_arr+=("$_email") done fi [[ -n "$sender_address" ]] || sender_address="${DEFAULT_SENDER_ADDRESS}" [[ -n "$content_type" ]] || content_type="${DEFAULT_CONTENT_TYPE}" [[ -n "$company" ]] || company="${DEFAULT_COMPANY}" # ------------- # - Job is already running? # ------------- # - If job already runs, stop execution.. # - if mkdir "$LOCK_DIR" 2> /dev/null ; then ## - Remove lockdir when the script finishes, or when it receives a signal trap "clean_up 1" SIGHUP SIGINT SIGTERM else datum="$(date +"%d.%m.%Y %H:%M")" msg="[ Error ]: A previos instance of \"`basename $0`\" seems already be running.\n\n Exiting now.." echo "" echo "[ Error ]: A previos instance of that script \"`basename $0`\" seems already be running." echo "" echo -e " Exiting now.." echo "" for _email in ${alert_email_arr[@]} ; do echo -e "To:${_email}\n${content_type}\nSubject:Error cronjob `basename $0` -- $datum\n${msg}\n" \ | sendmail -F "Error `hostname -f`" -f $sender_address $_email done exit 1 fi if $terminal ; then echo "" echo -e "\033[32m--\033[m" echo "" echo " Give E-Mail LOG-file here ...." echo "" echo -e " Type \033[33m\033[m to accept the default." echo "" echo "" _MAIL_LOG=$MAIL_LOG MAIL_LOG="" echononl "Mail LOG-file [\033[1m$_MAIL_LOG\033[m]: " read MAIL_LOG if [[ -z "$MAIL_LOG" ]] ; then MAIL_LOG=$_MAIL_LOG elif [[ ! -f "$MAIL_LOG" ]] ; then MAIL_LOG="" fi while [[ -z "$MAIL_LOG" ]] ; do echo "" error "Log-file \033[1m${MAIL_LOG}\033[m does not exist! Try again.." echononl " \033[33mMail LOG-file [\033[1m${_MAIL_LOG}\033[33m]\033[m: " read MAIL_LOG if [[ -z "$MAIL_LOG" ]] ; then MAIL_LOG=$_MAIL_LOG elif [[ ! -f "$MAIL_LOG" ]] ; then MAIL_LOG="" fi done echo "" echo "" echo -e " \033[1m------------------\033[m" echo -e " \033[32mParameter Summary:\033[m" echo -e " \033[1m------------------\033[m" echo "" echo " E-Mail LOG file.............: $MAIL_LOG" echo "" fi if $terminal ; then echo "" echo "" echo -e " \033[1mMain part of script ..\033[m" echo "" fi _err_msg="$(grep -E "^$(LC_ALL="en_US.UTF-8" date +'%b %d ' | sed -e 's/0\([0-9]\)/ \1/g')" $MAIL_LOG | grep " fatal:")" if [[ -n "$_err_msg" ]] ; then if $terminal; then error "Found entries 'fatal' in LOG-file \033[1m${MAIL_LOG}\033[m .." else error "Found entries 'fatal' in LOG-file '${MAIL_LOG}'.." fi echo -e "$_err_msg" echo "" echononl "Stop postfix mailservice .." systemctl stop postfix > ${log_file} 2>&1 if [[ $? -gt 0 ]] ; then echo_failed error "$(cat ${log_file})" else echo_ok fi if $terminal; then echononl "Try to delete lines conatining \033[1mfatal:\033[m in LOG-file \033[1m${MAIL_LOG}\033[m .." else info "Try to delete lines conatining 'fatal:' in LOG-file '${MAIL_LOG}'.." fi string_to_delete=" fatal: " sed -i "/${string_to_delete}/d" ${MAIL_LOG} > ${log_file} 2>&1 if [[ $? -gt 0 ]] ; then echo_failed error "$(cat ${log_file})" else echo_ok fi echononl "Start postfix mailservice .." systemctl start postfix > ${log_file} 2>&1 if [[ $? -gt 0 ]] ; then echo_failed error "$(cat ${log_file})" else echo_ok fi else blank_line info "No entry 'fatal' found in LOG-file \033[1m${MAIL_LOG}\033[m ." blank_line fi clean_up 0