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|
#!/bin/sh
#
# $FreeBSD$
#
# periodic(8) script that runs sa-update on a nightly basis, updating
# SpamAssassin rules if needed. Relies on sa-update command.
#
# Originally contributed by: Jeremy Chadwick <koitsu@FreeBSD.org>
# Extended and enhanced by: Matthew Seaman <m.seaman@infracaninophile.co.uk>
#
# Define these variables in either /etc/periodic.conf or
# /etc/periodic.conf.local to override the defaults.
#
# Configuration Settings (with default values):
#
# daily_sa_enable="YES"
# run sa-update(1) daily. We assume you want this since
# you've installed the port.
#
# daily_sa_quiet="NO"
# discard output from sa-update, sa-compile, sa-spamd if set
# to YES. sa-compile in particular is quite verbose, so
# setting this to YES can avoid some occasional excess
# verbiage in your daily e-mails.
#
# daily_sa_update_flags=""
# flags to pass to sa-update. eg. to download additional
# updates from saupdates.example.com, signed with a GPG key
# with fingerprint 0xCAFEBABE which you have previously
# downloaded and installed into the sa-update keyring:
# daily_sa_update_flags="--gpgkey CAFEBABE \
# --channel saupdates.example.com \
# --channel updates.spamassassin.org"
#
# daily_sa_compile="%%SACOMPILE%%"
# run sa-compile to create a compiled form of the filter
# rules when new rules are found. Note: this can be time
# consuming and CPU intensive.
#
# daily_sa_compile_flags=""
# flags to pass to sa-compile. eg to enable debug output
# daily_sa_compile_flags="-D"
#
# daily_sa_compile_nice="YES"
# run sa-compile via nice(1) to minimize its impact on the
# the system.
#
# daily_sa_compile_nice_flags=""
# flags to pass to nice(1). eg to use a priority increment
# different than the default.
# daily_sa_compile_nice_flags="-n 16"
#
# daily_sa_restart_spamd="YES"
# automatically restart sa-spamd when new rules are found.
# If daily_sa_compile is enabled, only restart if new rules
# are found and compilation succeeds
# If there is a global system configuration file, suck it in.
#
if [ -r /etc/defaults/periodic.conf ]
then
. /etc/defaults/periodic.conf
source_periodic_confs
fi
: ${daily_sa_enable="YES"}
: ${daily_sa_quiet="NO"}
: ${daily_sa_compile="%%SACOMPILE%%"}
: ${daily_sa_compile_nice="YES"}
: ${daily_sa_restart_spamd="YES"}
PATH=/bin:/sbin:/usr/bin:/usr/sbin:%%LOCALBASE%%/bin:%%LOCALBASE%%/sbin
export PATH
update_rules() {
echo
echo "Checking for new SpamAssassin rules:"
eval sa-update ${daily_sa_update_flags} ${_output} || rc=$?
return $rc
}
# If enabled, run sa-compile to compile the updated rulesets. This
# can require significant time and CPU.
compile_rules() {
case "$daily_sa_compile_nice" in
[Yy][Ee][Ss])
_nice="nice $daily_sa_compile_nice_flags"
;;
*)
_nice=
;;
esac
case "$daily_sa_compile" in
[Yy][Ee][Ss])
echo " Compiling new rules"
eval ${_nice} sa-compile ${daily_sa_compile_flags} ${_output} || rc=$?
if [ $rc -ne 0 ] ; then
echo "Error: sa-compile exited with code $rc"
rc=3
fi
;;
*) ;; # Do nothing
esac
return $rc
}
# If update_rules() downloads new rules, and if compile_rules succeeds
# or is not enabled, then restart the spamd daemon.
restart_spamd() {
case "$daily_sa_restart_spamd" in
[Yy][Ee][Ss])
echo " Restarting sa-spamd"
eval %%LOCALBASE%%/etc/rc.d/sa-spamd restart ${_output} || rc=$?
if [ $rc -ne 0 ] ; then
echo "Error: failed to restart sa-spamd"
rc=3
fi
;;
*) ;; # Do nothing
esac
return $rc
}
rc=0
case "$daily_sa_enable" in
[Yy][Ee][Ss])
case ${daily_sa_quiet} in
[Yy][Ee][Ss])
_output='>/dev/null 2>&1'
;;
*)
_output=
;;
esac
# In FreeBSD 12.0 the anticongestion function should be used
# instead of a hard-coded sleep
if [ -n "$anticongestion_sleeptime" ]; then
anticongestion
else
sleep $( jot -r 1 0 300 )
fi
update_rules || rc=$?
case ${rc} in
0)
echo "Successfully downloaded updated rules"
compile_rules && \
restart_spamd
;;
1)
echo "No new rules available."
rc=0
;;
*)
echo "Error: sa-update exited with code ${rc}"
rc=3
;;
esac
;;
*) ;; # Nothing to do
esac
exit $rc
|
