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#!/bin/sh
# send mail script for adblock notifications
# Copyright (c) 2015-2026 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=all
[ -r "/usr/bin/adblock.sh" ] && . "/usr/bin/adblock.sh" "mail"
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="$(uci_get adblock global adb_mailprofile "adb_notify")"
[ -z "${adb_mailreceiver}" ] && f_log "info" "please set the mail receiver with the 'adb_mailreceiver' option"
[ "${adb_debug}" = "1" ] && debug="--debug"
# info preparation
#
sys_info="$(
strings /etc/banner 2>/dev/null
"${adb_ubuscmd}" call system board | "${adb_awkcmd}" 'BEGIN{FS="[{}\"]"}{if($2=="kernel"||$2=="hostname"||$2=="system"||$2=="model"||$2=="description")printf " + %-12s: %s\n",$2,$4}' 2>/dev/null
)"
adb_info="$(/etc/init.d/adblock status 2>/dev/null)"
rep_info="${1}"
if [ -x "${adb_logreadcmd}" ]; then
log_info="$("${adb_logreadcmd}" -l 100 -e "adblock-" 2>/dev/null)"
fi
# mail body
#
adb_mailtext="$(
printf '%s\n' "<html><body><pre style='display:block;font-family:monospace;font-size:1rem;padding:20;background-color:#f3eee5;white-space:pre'>"
printf '\n%s\n' "<strong>++
++ System Information ++
++</strong>"
printf '%s\n' "${sys_info:-"-"}"
printf '\n%s\n' "<strong>++
++ Adblock Information ++
++</strong>"
printf '%s\n' "${adb_info:-"-"}"
if [ -n "${rep_info}" ]; then
printf '\n%s\n' "<strong>++
++ Report Information ++
++</strong>"
printf '%s\n' "${rep_info}"
fi
printf '\n%s\n' "<strong>++
++ Logfile Information ++
++</strong>"
printf '%s\n' "${log_info:-"-"}"
printf '%s\n' "</pre></body></html>"
)"
# send mail
#
if [ -x "${adb_mailcmd}" ]; then
adb_mailhead="From: ${adb_mailsender}\nTo: ${adb_mailreceiver}\nSubject: ${adb_mailtopic}\nReply-to: ${adb_mailsender}\nMime-Version: 1.0\nContent-Type: text/html;charset=utf-8\nContent-Disposition: inline\n\n"
printf '%b' "${adb_mailhead}${adb_mailtext}" 2>/dev/null | "${adb_mailcmd}" ${debug} -a "${adb_mailprofile}" "${adb_mailreceiver}" 2>>"${adb_errorlog}"
mail_rc="${?}"
if [ "${mail_rc}" = "0" ]; then
f_log "info" "mail successfully sent to '${adb_mailreceiver}'"
else
f_log "info" "failed to send mail to '${adb_mailreceiver}' with rc '${mail_rc}'"
fi
else
f_log "info" "msmtp mail daemon not found"
fi
exit 0
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