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|
#!/bin/bash
# vim: set fileencoding=utf-8 ts=4 sw=4 noexpandtab
PORTICRON_VERSION="0.5.2"
version() {
echo "porticron ${PORTICRON_VERSION}"
echo "Copyright (c) 2008-2009 Benedikt Böhm <bb@xnull.de>"
exit 0
}
usage() {
echo "Usage: porticron [-hvn] [-c <file>]"
echo
echo " -h print this help text"
echo " -v enable verbose output"
echo " -V print version number"
echo " -n do not send upgrade mails"
echo " -c <file> use configuration in <file>"
echo
exit 0
}
log() {
[[ ${VERBOSE} -eq 1 ]] && echo "$@" >&2
}
send_mail() {
if [[ ${NOMAIL} -eq 1 ]]; then
if [[ ${VERBOSE} -eq 1 ]]; then
cat
else
cat > /dev/null
fi
else
${SENDMAIL:-/usr/sbin/sendmail} -t
fi
}
# parse command line
while getopts "hvVnc:" opt; do
case $opt in
h) usage;;
v) VERBOSE=1;;
V) version;;
n) NOMAIL=1;;
c) PORTICRON_CONF=${OPTARG};;
?) exit 1;;
esac
done
# defaults
: ${VERBOSE:=0}
: ${NOMAIL:=0}
: ${PORTICRON_CONF:=/etc/porticron.conf}
log "using PORTICRON_CONF=${PORTICRON_CONF}, NOMAIL=${NOMAIL}, VERBOSE=${VERBOSE}"
# load config
if [[ ! -r ${PORTICRON_CONF} ]]; then
echo "could not open configuration file ${PORTICRON_CONF}"
exit 1
else
source ${PORTICRON_CONF}
fi
# detect some common variables
SCRIPT_NAME=$(basename $0)
FQDN=$(hostname --fqdn)
IP=$(dig +short ${FQDN} | tr '\n' ' ')
DATE=$(date -R)
PORTDIR=$(portageq portdir)
# sync if desired
log "running SYNC_CMD: ${SYNC_CMD:-/usr/bin/emerge --sync}"
${SYNC_CMD:-/usr/bin/emerge --sync} &>/dev/null
log "running SYNC_OVERLAY_CMD: ${SYNC_OVERLAYS_CMD:-/bin/true}"
${SYNC_OVERLAYS_CMD:-/bin/true} &>/dev/null
# run emerge once to perform global updates while not cluttering mail output
/usr/bin/emerge --info &>/dev/null
# GLSA check
log "running GLSA_AFFECTED: /usr/bin/glsa-check --test --nocolor --verbose affected"
GLSA_AFFECTED=$(/usr/bin/glsa-check --test --nocolor --verbose affected 2>/dev/null)
log "running GLSA_UPGRADES: /usr/bin/glsa-check --pretend affected"
GLSA_UPGRADES=$(/usr/bin/glsa-check --pretend affected | grep '^ ')
if [[ -n ${GLSA_AFFECTED} ]]; then
GLSA_MSG="
${SCRIPT_NAME} has detected that this system is affected by the following GLSAs:
$(echo "${GLSA_AFFECTED}" | sed 's/^20/ 20/')
========================================================================
The following updates should be performed for these GLSAs:
${GLSA_UPGRADES}
"
cat <<EOF | send_mail
To: ${RCPT:-root@${FQDN}}
From: root@${FQDN}
Subject: WARNING: Gentoo security updates on ${FQDN} [ ${IP} ]
Date: ${DATE}
porticron report [${DATE}]
========================================================================
${GLSA_MSG}
--
${SCRIPT_NAME}
EOF
fi
# build a list of changed ebuilds
if [[ -n ${DIFF_CMD} ]]; then
log "running DIFF_CMD: ${DIFF_CMD}"
DIFF=$(${DIFF_CMD} 2>/dev/null)
fi
if [[ -n ${DIFF} ]]; then
DIFF_MSG="${SCRIPT_NAME} has detected the following changes to ${PORTDIR}:
${DIFF}
========================================================================
"
fi
# build list of upgrades
: ${UPGRADE_OPTS:=--deep --update}
log "running UPGRADE_CMD: /usr/bin/emerge ${UPGRADE_OPTS} --quiet --pretend world"
UPGRADE=$(/usr/bin/emerge ${UPGRADE_OPTS} --quiet --pretend world 2>/dev/null)
if [[ -n ${UPGRADE} ]]; then
UPGRADE_MSG="
${SCRIPT_NAME} has detected that some packages need upgrading:
$(echo "${UPGRADE}" | sed 's/^\[/ [/')
========================================================================
You can perform the upgrade by issuing the command:
emerge ${UPGRADE_OPTS} world
as root on ${FQDN}
It is recommended that you pretend the upgrade first to confirm that
the actions that would be taken are reasonable. The upgrade may be
pretended by issuing the command:
emerge ${UPGRADE_OPTS} --pretend world
"
fi
# send mail
if [[ -z ${UPGRADE_MSG} && -z ${DIFF_MSG} ]]; then
log "no upgrades found, exiting."
exit 0
fi
cat <<EOF | send_mail
To: ${RCPT:-root@${FQDN}}
From: root@${FQDN}
Subject: Gentoo package updates on ${FQDN} [ ${IP} ]
Date: ${DATE}
porticron report [${DATE}]
========================================================================
${DIFF_MSG}${UPGRADE_MSG}
--
${SCRIPT_NAME}
EOF
|
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