#!/bin/sh # send mail script for adblock notifications # Copyright (c) 2015-2020 Dirk Brenken (dev@brenken.org) # This is free software, licensed under the GNU General Public License v3. # Please note: you have to manually install and configure the package 'msmtp' before using this script # set (s)hellcheck exceptions # shellcheck disable=1091,2010,2016,2034,2039,2059,2086,2091,2129,2143,2154,2181,2183,2188 LC_ALL=C PATH="/usr/sbin:/usr/bin:/sbin:/bin" if [ -r "/lib/functions.sh" ] then . "/lib/functions.sh" adb_debug="$(uci_get adblock global adb_debug "0")" adb_mailsender="$(uci_get adblock global adb_mailsender "no-reply@adblock")" adb_mailreceiver="$(uci_get adblock global adb_mailreceiver)" adb_mailtopic="$(uci_get adblock global adb_mailtopic "adblock notification")" adb_mailprofile="$(uci_get adblock global adb_mailprofile "adb_notify")" fi adb_ver="${1}" adb_mail="$(command -v msmtp)" adb_logger="$(command -v logger)" adb_logread="$(command -v logread)" adb_rc=1 f_log() { local class="${1}" log_msg="${2}" if [ -x "${adb_logger}" ] then "${adb_logger}" -p "${class}" -t "adblock-${adb_ver}[${$}]" "${log_msg}" else printf "%s %s %s\\n" "${class}" "adblock-${adb_ver}[${$}]" "${log_msg}" fi } if [ -z "${adb_mailreceiver}" ] then f_log "err" "please set the mail receiver with the 'adb_mailreceiver' option" exit ${adb_rc} fi if [ "${adb_debug}" -eq 1 ] then debug="--debug" fi adb_mailhead="From: ${adb_mailsender}\\nTo: ${adb_mailreceiver}\\nSubject: ${adb_mailtopic}\\nReply-to: ${adb_mailsender}\\nMime-Version: 1.0\\nContent-Type: text/html\\nContent-Disposition: inline\\n\\n" # info preparation # sys_info="$(strings /etc/banner 2>/dev/null; ubus call system board | sed -e 's/\"release\": {//' | sed -e 's/^[ \t]*//' | sed -e 's/[{}\",]//g' | sed -e 's/[ ]/ \t/' | sed '/^$/d' 2>/dev/null)" adb_info="$(/etc/init.d/adblock status 2>/dev/null)" if [ -f "/var/log/messages" ] then log_info="$(awk '/adblock-/{NR=1;max=79;if(length($0)>max+1)while($0){if(NR==1){print substr($0,1,max),"↵"} else {print " ",substr($0,1,max)}{$0=substr($0,max+1);NR=NR+1}}else print}' /var/log/messages)" elif [ -x "${adb_logread}" ] then log_info="$("${adb_logread}" -e "adblock-" | awk '{NR=1;max=79;if(length($0)>max+1)while($0){if(NR==1){print substr($0,1,max),"↵"} else {print " ",substr($0,1,max)}{$0=substr($0,max+1);NR=NR+1}}else print}')" fi # mail body # adb_mailtext="

"
adb_mailtext="${adb_mailtext}\\n++\\n++ System Information ++\\n++\\n${sys_info}"
adb_mailtext="${adb_mailtext}\\n\\n++\\n++ Adblock Information ++\\n++\\n${adb_info}"
adb_mailtext="${adb_mailtext}\\n\\n++\\n++ Logfile Information ++\\n++\\n${log_info}"
adb_mailtext="${adb_mailtext}

" # send mail # if [ -x "${adb_mail}" ] then printf "%b" "${adb_mailhead}${adb_mailtext}" 2>/dev/null | "${adb_mail}" ${debug} -a "${adb_mailprofile}" "${adb_mailreceiver}" >/dev/null 2>&1 adb_rc=${?} f_log "info" "mail sent to '${adb_mailreceiver}' with rc '${adb_rc}'" else f_log "err" "msmtp mail daemon not found" fi exit ${adb_rc}