94 lines
2.5 KiB
Bash
Executable File
94 lines
2.5 KiB
Bash
Executable File
#!/bin/sh
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: << =cut
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=head1 NAME
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senderbase - Gives the current SenderBase reputation for a mail host.
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SenderBase is a mail server reputation service run by Cisco. It's
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basically a measure of how likely or unlikely they think it is for the
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server in question to be sending spam, rated on a scale of -10 (near-100%
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chance of spam) to 10 (near-0% chance of spam). The SenderBase score for
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a server is one of several criteria that may be used when doing spam
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filtering; consequently, it's useful for the operator of a mail server to
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track their current reputation score.
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=head1 CONFIGURATION
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By default, the script will use the first IP address returned by
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C<hostname -I>. If that's not the right address to use, set the
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C<ip_address> environment variable to the appropriate value. (Note that
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if a host has multiple IP addresses, there's no guaranteed ordering for
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C<hostname -I>, so you should set the address explicitly in that case.)
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[senderbase]
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env.ip_address 8.8.8.8
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=head1 AUTHOR
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Phil! Gold <phil_g@pobox.com>
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=head1 LICENSE
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This plugin is made available under a CC0 waiver:
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https://creativecommons.org/publicdomain/zero/1.0/
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=head1 MAGIC MARKERS
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#%# family=auto
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#%# capabilities=autoconf
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=cut
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if which dig >/dev/null; then
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query_program=dig
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do_query () {
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hostname=$1
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dig +short $hostname TXT | sed 's/"//g' | head -1
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}
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elif which host >/dev/null; then
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query_program=host
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do_query () {
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hostname=$1
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host -t TXT $hostname | grep -m 1 'descriptive text' | cut -d\" -f2
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}
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else
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query_program=
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do_query () {
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true
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}
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fi
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real_ip_address="${ip_address:-$(hostname -I | awk '{print $1}')}"
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ip_reversed="$(echo $real_ip_address | sed -re 's/^([0-9]+)\.([0-9]+)\.([0-9]+)\.([0-9]+)$/\4.\3.\2.\1/')"
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query_host="${ip_reversed}.rf.senderbase.org"
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if [ "$1" = "autoconf" ]; then
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if [ -z "$query_program" ]; then
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echo 'no (No "dig" or "host" executable found.)'
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elif [ -z "$(do_query "$query_host")" ]; then
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echo "no (No SenderBase reputation for IP address ${ip_address}.)"
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else
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echo 'yes'
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fi
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exit 0
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fi
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if [ "$1" = "config" ]; then
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cat <<EOF
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graph_category mail
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graph_title SenderBase Reputation for $real_ip_address
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graph_info Current reputation from senderbase.org. Ranges from -10 (very poor) through 0 (neutral) to 10 (very good).
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graph_args --lower-limit -10 --upper-limit 10
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reputation.label Reputation
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reputation.warning 0:
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reputation.critical -5:
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EOF
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exit 0
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fi
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value="$(do_query "$query_host")"
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echo reputation.value "${value:-U}"
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