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62 lines
2.7 KiB
62 lines
2.7 KiB
#!/bin/sh
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# send mail script for banIP notifications
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# Copyright (c) 2020-2021 Dirk Brenken (dev@brenken.org)
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# This is free software, licensed under the GNU General Public License v3.
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# (s)hellcheck exceptions
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# shellcheck disable=1091,3040
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# Please note: you have to setup the package 'msmtp' before using this script
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export LC_ALL=C
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export PATH="/usr/sbin:/usr/bin:/sbin:/bin"
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set -o pipefail
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. "/lib/functions.sh"
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ban_debug="$(uci_get banip global ban_debug "0")"
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ban_loglimit="$(uci_get banip global ban_loglimit "100")"
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ban_mailsender="$(uci_get banip global ban_mailsender "no-reply@banIP")"
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ban_mailreceiver="$(uci_get banip global ban_mailreceiver)"
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ban_mailtopic="$(uci_get banip global ban_mailtopic "banIP notification")"
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ban_mailprofile="$(uci_get banip global ban_mailprofile "ban_notify")"
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ban_mail="$(command -v msmtp)"
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ban_logger="$(command -v logger)"
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ban_logread="$(command -v logread)"
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if [ -z "${ban_mailreceiver}" ]; then
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f_log "err" "please set the mail receiver with the 'ban_mailreceiver' option"
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exit 1
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fi
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if [ "${ban_debug}" = "1" ]; then
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msmtp_debug="--debug"
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fi
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ban_mailhead="From: ${ban_mailsender}\nTo: ${ban_mailreceiver}\nSubject: ${ban_mailtopic}\nReply-to: ${ban_mailsender}\nMime-Version: 1.0\nContent-Type: text/html;charset=utf-8\nContent-Disposition: inline\n\n"
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# info preparation
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#
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sys_info="$(
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strings /etc/banner 2>/dev/null
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ubus call system board | awk 'BEGIN{FS="[{}\"]"}{if($2=="kernel"||$2=="hostname"||$2=="system"||$2=="model"||$2=="description")printf " + %-12s: %s\n",$2,$4}'
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)"
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ban_info="$(/etc/init.d/banip "status" 2>/dev/null)"
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rep_info="${1}"
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log_info="$("${ban_logread}" -l "${ban_loglimit}" -e "banIP-" 2>/dev/null | awk '{NR=1;max=120;if(length($0)>max+1)while($0){if(NR==1){print substr($0,1,max)}else{print substr($0,1,max)}{$0=substr($0,max+1);NR=NR+1}}else print}')"
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# mail body
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#
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ban_mailtext="<html><body><pre style='display:block;font-family:monospace;font-size:1rem;padding:20;background-color:#f3eee5;white-space:pre'>"
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ban_mailtext="${ban_mailtext}\n<strong>++\n++ System Information ++\n++</strong>\n${sys_info}"
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ban_mailtext="${ban_mailtext}\n\n<strong>++\n++ banIP Status ++\n++</strong>\n${ban_info}"
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if [ -n "${rep_info}" ]; then
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ban_mailtext="${ban_mailtext}\n\n<strong>++\n++ banIP Report ++\n++</strong>\n${rep_info}"
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fi
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ban_mailtext="${ban_mailtext}\n\n<strong>++\n++ Logfile Information ++\n++</strong>\n${log_info}"
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ban_mailtext="${ban_mailtext}</pre></body></html>"
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# send mail
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#
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printf "%b" "${ban_mailhead}${ban_mailtext}" 2>/dev/null | "${ban_mail}" ${msmtp_debug} -a "${ban_mailprofile}" "${ban_mailreceiver}" >/dev/null 2>&1
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"${ban_logger}" -p "info" -t "banIP-mail [${$}]" "mail sent to '${ban_mailreceiver}' with rc '${?}'" 2>/dev/null
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