153 lines
3.3 KiB
Bash
Executable File
153 lines
3.3 KiB
Bash
Executable File
#!/usr/bin/env bash
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check_string_ps=""
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if [[ -x "/usr/lib/postfix/master" ]] ; then
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check_string_ps="/usr/lib/postfix/master"
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elif [[ -x "/usr/libexec/postfix/master" ]] ; then
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check_string_ps="/usr/libexec/postfix/master"
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fi
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postfix_init_script=""
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if [[ -x "/etc/init.d/postfix" ]] ; then
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postfix_init_script="/etc/init.d/postfix"
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fi
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LOCK_DIR=`mktemp -d`
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#---------------------------------------
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#-----------------------------
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# Base Function(s)
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#-----------------------------
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#---------------------------------------
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fatal(){
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echo ""
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echo -e " [ Fatal ] $*"
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echo ""
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echo -e "\tScript terminated.."
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echo ""
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rm -rf $LOCK_DIR
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exit 1
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}
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error (){
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echo ""
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echo -e " [ Error ] $*"
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echo ""
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}
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warn (){
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echo ""
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echo -e " [ Warn ] $*"
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echo ""
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}
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info (){
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echo ""
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echo -e " [ Info ] $*"
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echo ""
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}
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ok (){
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echo ""
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echo -e " [ Ok ] $*"
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echo ""
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}
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trim() {
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local var="$*"
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var="${var#"${var%%[![:space:]]*}"}" # remove leading whitespace characters
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var="${var%"${var##*[![:space:]]}"}" # remove trailing whitespace characters
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echo -n "$var"
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}
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#---------------------------------------
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#-----------------------------
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# Check some prerequisites
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#-----------------------------
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#---------------------------------------
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# - Running in a terminal?
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# -
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if [[ -t 1 ]] ; then
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terminal=true
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LOGGING=true
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else
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terminal=false
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LOGGING=false
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fi
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if [[ -z $check_string_ps ]]; then
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fatal "$(basename $0): Postfix seems NOT to be installed"
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fi
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# - Systemd supported ?
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# -
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systemd=$(which systemd)
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systemctl=$(which systemctl)
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systemd_supported=false
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if [[ -n "$systemd" ]] && [[ -n "$systemctl" ]] ; then
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systemd_supported=true
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else
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if [[ ! -x $postfix_init_script ]]; then
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fatal "$(basename $0): Missing Postfix Init-Script!"
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fi
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fi
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#---------------------------------------
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#-----------------------------
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# Check if Postfix Mailservice is running
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#-----------------------------
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#---------------------------------------
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if $LOGGING ; then
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echo -e "\n Check if Postfix Mailservice is running.."
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echo -e " ========================================="
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fi
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if ! ps ax | grep -e "\ ${check_string_ps}" | grep -v grep > /dev/null ; then
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error "Postfix Mailservice seems to be down! Trying to restart service now.."
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if $systemd_supported ; then
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$systemctl stop postfix > /dev/null 2> ${LOCK_DIR}/err_msg.log
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if [[ $? -ne 0 ]]; then
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error "$(cat ${LOCK_DIR}/err_msg.log)"
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fi
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sleep 10
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$systemctl start postfix > /dev/null 2> ${LOCK_DIR}/err_msg.log
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if [[ $? -ne 0 ]]; then
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error "$(cat ${LOCK_DIR}/err_msg.log)"
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fi
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else
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$postfix_init_script stop > /dev/null 2>&1
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if [[ $? -ne 0 ]]; then
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error "Stopping Postfix Mailservice failed!"
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fi
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sleep 10
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$postfix_init_script start > /dev/null 2>&1
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if [[ $? -ne 0 ]]; then
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error "Starting Postfix Mailservice failed!"
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fi
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fi
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if ! ps ax | grep -e "\ ${check_string_ps}" | grep -v grep > /dev/null ; then
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error "Restarting Postfix Mailservice failed!"
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else
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ok "Postfix Mailservice is up and running."
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fi
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else
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if $LOGGING ; then
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ok "Postfix Mailservice is up and running."
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fi
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fi
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rm -rf $LOCK_DIR
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exit 0
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