diff options
Diffstat (limited to '')
| -rw-r--r-- | debian/exim4-base.cron.daily | 120 |
1 files changed, 120 insertions, 0 deletions
diff --git a/debian/exim4-base.cron.daily b/debian/exim4-base.cron.daily new file mode 100644 index 0000000..0357a0e --- /dev/null +++ b/debian/exim4-base.cron.daily @@ -0,0 +1,120 @@ +#!/bin/sh + +EX4SYSTEMDTIMER=$1 + +# skip in favour of systemd timer if called from cron.daily +if [ -d /run/systemd/system ] && [ "$EX4SYSTEMDTIMER" != "systemd-timer" ]; then + exit 0 +fi + +if [ -n "$EX4DEBUG" ]; then + echo "now debugging $0 $@" + set -x +fi + + +# set this to some other value if you don't want the panic log to be +# watched by this script, for example when you're using your own log +# checking mechanisms or don't care. + +E4BCD_DAILY_REPORT_TO="" +E4BCD_DAILY_REPORT_OPTIONS="" +E4BCD_WATCH_PANICLOG="yes" +# Number of lines of paniclog quoted in warning email. +E4BCD_PANICLOG_LINES="10" +E4BCD_PANICLOG_NOISE="" +E4BCD_PANICLOG_REPORT_TO=root + +# Only do anything if exim4 is actually installed +if [ ! -x /usr/lib/exim4/exim4 ]; then + exit 0 +fi + +[ -f /etc/default/exim4 ] && . /etc/default/exim4 + +SPOOLDIR="$(exim4 -bP spool_directory | sed 's/.*=[[:space:]]\(.*\)/\1/')" +if [ -n "$E4BCD_DAILY_REPORT_TO" ] || [ "$E4BCD_WATCH_PANICLOG" != "no" ] ; then + # Only needed for mail subject. + if ! HOSTNAME=$(/usr/sbin/exim4 -be '${primary_hostname}'); then + HOSTNAME="$(hostname)" + fi +fi + + +# The log processing code used in this cron script is not very +# sophisticated. It relies on this cron job being executed earlier than +# the log rotation job, and will have false results if the log is not +# rotated exactly once daily in the daily cron processing. Even in the +# default configuration, it will ignore log entries made between this +# cron job and the log rotation job. + +# Patches for more sophisticated processing are appreciated via the +# Debian BTS. + +E4BCD_MAINLOG_NOISE="^[[:digit:][:space:]:-]\{20\}\(\(Start\|End\) queue run: pid=[[:digit:]]\+\|exim [[:digit:]\.]\+ daemon started: pid=[[:digit:]]\+, .*\)$" + +if [ -n "$E4BCD_DAILY_REPORT_TO" ]; then + if [ -x "$(command -v eximstats)" ] && [ -x "$(command -v mail)" ]; then + if [ "$(< /var/log/exim4/mainlog grep -v "$E4BCD_MAINLOG_NOISE" | wc -l)" -gt "0" ]; then + < /var/log/exim4/mainlog grep -v "$E4BCD_MAINLOG_NOISE" \ + | eximstats $E4BCD_DAILY_REPORT_OPTIONS \ + | mail -s"${HOSTNAME} Daily e-mail activity report" \ + $E4BCD_DAILY_REPORT_TO + else + echo "no mail activity in this interval" \ + | mail -s"${HOSTNAME} Daily e-mail activity report" \ + $E4BCD_DAILY_REPORT_TO + fi + else + echo "The exim4 cron job is configured to send a daily report, but eximstats" + echo "and/or mail cannot be found. Please check and make sure that these two" + echo "binaries are available" + fi +fi + +log_this() { + TEXT="$@" + if ! logger -t exim4 -p mail.alert $TEXT; then + RET="$?" + echo >&2 "ALERT: could not syslog $TEXT, logger return value $RET" + fi +} + +if [ "$E4BCD_WATCH_PANICLOG" != "no" ]; then + if [ -s "/var/log/exim4/paniclog" ]; then + if [ -x "/usr/local/lib/exim4/nonzero_paniclog_hook" ]; then + /usr/local/lib/exim4/nonzero_paniclog_hook + fi + if [ -z "$E4BCD_PANICLOG_NOISE" ] || grep -vq "$E4BCD_PANICLOG_NOISE" /var/log/exim4/paniclog; then + log_this "ALERT: exim paniclog /var/log/exim4/paniclog has non-zero size, mail system possibly broken" + if ! printf "Subject: exim paniclog on %s has non-zero size\nTo: %s\n\nexim paniclog /var/log/exim4/paniclog on %s has non-zero size, mail system might be broken. Up to ${E4BCD_PANICLOG_LINES} lines are quoted below.\n\n%s\n" \ + "${HOSTNAME}" "${E4BCD_PANICLOG_REPORT_TO}" "${HOSTNAME}" \ + "$(if [ -z "$E4BCD_PANICLOG_NOISE" ] ; then tail -n "${E4BCD_PANICLOG_LINES}" /var/log/exim4/paniclog ; else grep -v "$E4BCD_PANICLOG_NOISE" /var/log/exim4/paniclog | tail -n "${E4BCD_PANICLOG_LINES}" ; fi)" \ + | exim4 "${E4BCD_PANICLOG_REPORT_TO}"; then + log_this "PANIC: sending out e-mail warning has failed, exim has non-zero return code" + fi + if [ "$E4BCD_WATCH_PANICLOG" = "once" ]; then + logrotate -f /etc/logrotate.d/exim4-paniclog + fi + fi + fi +fi + +# run tidydb as Debian-exim:Debian-exim. +if [ -x /usr/sbin/exim_tidydb ]; then + cd $SPOOLDIR/db || exit 1 + if ! find $SPOOLDIR/db -maxdepth 1 -name '*.lockfile' -or -name 'log.*' \ + -or -type f -printf '%f\0' | \ + xargs -0r -n 1 \ + start-stop-daemon --start --exec /usr/sbin/exim_tidydb \ + --chuid Debian-exim:Debian-exim -- $SPOOLDIR > /dev/null; then + # if we reach this, invoking exim_tidydb from start-stop-daemon has + # failed, most probably because of libpam-tmpdir being in use + # (see #373786 and #376165) + find $SPOOLDIR/db -maxdepth 1 -name '*.lockfile' -or -name 'log.*' \ + -or -type f -printf '%f\0' | \ + runuser --shell=/bin/bash \ + --command="xargs -0r -n 1 /usr/sbin/exim_tidydb $SPOOLDIR > /dev/null" \ + Debian-exim + fi +fi |