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[whois] Allow to specificy whois server per domain

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Also, clean up some old code that pre-dates multi-domain handling

Signed-off-by: Olivier Mehani <shtrom@ssji.net>
This commit is contained in:
Olivier Mehani 2021-12-29 15:46:00 +11:00 • committed by Lars Kruse
parent ca8ce74367
commit 02451d8f6e
1 changed files with 19 additions and 11 deletions
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30
plugins/network/whois
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@ -13,11 +13,12 @@ only query the WHOIS database C<cache_expiry_mins> minutes.
=head1 CONFIGURATION
First, create a section in your munin-node configuration files. The domain envvar
is mandatory, others are optional.
First, create a section in your munin-node configuration files. The domain
envvar is mandatory, others are optional. Optionally, a specific WHOIS server
to query for a given domain can be specified with the @WHOIS_SERVER suffix
[whois]
env.domains example.com example.org
env.domains example.com example.org@whois.example.net
env.extract_re s/PATTERN/REPL/
env.warning_days <default: 7 days>
env.critical_days <default: 3 days>
@ -41,7 +42,7 @@ Then create a symlink to enable this plugin:
Olivier Mehani
Copyright (C) 2020 Olivier Mehani <shtrom+munin@ssji.net>
Copyright (C) 2020,2021 Olivier Mehani <shtrom+munin@ssji.net>
=head1 LICENSE
@ -74,6 +75,7 @@ graph_config() {
graph_title Domain registration expiry
graph_category network
graph_vlabel days
graph_args --units-exponent 0
EOF
}
@ -84,6 +86,8 @@ config() {
local FIELDNAME
for NAME in $DOMAINS
do
NAME="$(echo "${NAME}" | cut -d @ -f 1)"
FIELDNAME="$(clean_fieldname "${NAME}")"
cat << EOF
@ -98,17 +102,24 @@ EOF
# Args: domain name
fetch() {
local NAME
local SERVER
local FIELDNAME
local CACHEFILE
for NAME in $DOMAINS
do
SERVER=''
if echo "${NAME}" | grep -q '@'; then
SERVER="$(echo "${NAME}" | cut -d @ -f 2)"
NAME="$(echo "${NAME}" | cut -d @ -f 1)"
fi
FIELDNAME="$(clean_fieldname "${NAME}")"
CACHEFILE="${MUNIN_PLUGSTATE}/$(basename "${0}").${FIELDNAME}.cache"
if [ -z "$(find "${CACHEFILE}" -mmin -"${CACHE_EXPIRY}" 2>/dev/null)" ]; then
EXPIRY="$(whois "${NAME}" 2>/dev/null | sed -n "${EXTRACT_RE}p;T;q")" # T;q exits after printing the first match
EXPIRY="$(whois "${NAME}" "${SERVER:+-h${SERVER}}" 2>/dev/null | sed -n "${EXTRACT_RE}p;T;q")" # T;q exits after printing the first match
DELTA_TS=U
if [ -n "${EXPIRY}" ]; then
EXPIRY_TS="$(date +%s -d "${EXPIRY}")"
@ -126,17 +137,14 @@ fetch() {
main() {
local MODE="${1:-}"
local NAME
NAME="$(echo "${0}" | sed 's/.*_//')"
case "${MODE}" in
'config')
graph_config "${NAME}"
config "${NAME}"
graph_config
config
;;
*)
fetch "${NAME}"
fetch
;;
esac
}