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vivivi/galanga/nagios-irc-bot.pl

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#!/usr/bin/perl -w
#
# The contents of this file are subject to the Mozilla Public
# License Version 1.1 (the "License"); you may not use this file
# except in compliance with the License. You may obtain a copy of
# the License at http://www.mozilla.org/MPL/
#
# Software distributed under the License is distributed on an "AS
# IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
# implied. See the License for the specific language governing
# rights and limitations under the License.
#
# The Original Code is the Bugzilla Status Bot
#
# The Initial Developer of the Original Code is David D. Miller.
# Portions developed by David D. Miller are Copyright (C) 2002-3
# David D. Miller. All Rights Reserved.
#
# Contributor(s): David Miller <justdave@syndicomm.com>
# Mark Smith <mark@qq.is>
#
use strict;
use Net::IRC;
use POSIX "sys_wait_h";
use Term::ANSIColor qw/ :constants /;
use Data::Dumper;
#
# Create the IRC and Connection objects
#
my $version = "BZBot v1.3 - Modified for use with Nagios.";
my $irc = new Net::IRC;
my $channel = '#april-admin';
#open IPADDR, "</etc/ipaddr";
#my $ipaddr = <IPADDR>;
#chomp ($ipaddr);
#close IPADDR;
# CONFIG: point this where your Nagios configuration files live
my $nagioslog = "/var/log/icinga/icinga.log";
my $nagioscmd = "/var/lib/icinga/rw/icinga.cmd";
open NAGIOS, "<$nagioslog" or die "failed to open $nagioslog: $!\n";
seek NAGIOS, 0, 2; # seek to end
my @cmdqueue = ();
my %ignore = ();
my $ACKCT = 0;
my @ACKS;
print "Creating connection to IRC server...\n";
my $conn;
while (!$conn) {
# CONFIG: you have to tell us where to get on IRC
$conn = $irc->newconn(Server => 'irc.freenode.net',
Port => 6667,
SSL => 0,
Nick => 'vivivi',
Ircname => 'April Nagios alerts',
Username => 'vivivi')
or print "Redialing...\n";
sleep 1;
}
print "Connection created.\n";
$conn->debug(1);
my $laststat = time;
my $identified_to_nickserv = 0;
$::tagueule = 0;
#
# Handler subs
#
# What to do when the bot successfully connects.
sub on_connect {
my $self = shift;
$identified_to_nickserv = 1;
print "Joining $channel...\n";
# FIXME: this is broken right now. when this is re-added, it has to happen
# before we try to join channels.
#print "Identifying to NickServ...\n";
#$self->privmsg('nickserv',"identify xxx");
# CONFIG: channels you want us to announce to ...
$self->join($channel);
#$self->join("#status");
}
# Handles some messages you get when you connect
sub on_init {
my ($self, $event) = @_;
my (@args) = ($event->args);
shift (@args);
print "*** @args\n";
}
# What to do when someone leaves a channel the bot is on.
sub on_part {
my ($self, $event) = @_;
my ($channel) = ($event->to)[0];
printf "*** %s has left channel %s\n", $event->nick, $channel;
}
# What to do when someone joins a channel the bot is on.
sub on_join {
my ($self, $event) = @_;
my ($channel) = ($event->to)[0];
my ($nick, $userhost) = ($event->nick, $event->userhost);
printf "*** %s (%s) has joined channel %s\n",
$nick, $userhost, $channel;
&refresh ();
}
# What to do when we receive a private PRIVMSG.
sub on_msg {
my ($self, $event) = @_;
my ($nick) = $event->nick;
my ($arg) = ($event->args);
print "*$nick* ", ($event->args), "\n";
if ($arg =~ /Go away/i) { # Tell him to leave, and he does.
$self->quit("Yow!!");
exit 0;
# CONFIG: if you don't change this, anybody can restart your IRC bot at will
# if they've seen this ...
} elsif ($arg =~ /restart ya dope/) {
$self->quit("Regrouping");
exec $0;
} else {
$self->privmsg($nick, "Yo!");
}
}
# What to do when we receive channel text.
sub on_public {
my ($self, $event) = @_;
my @to = $event->to;
my ($nick, $mynick) = ($event->nick, $self->nick);
my ($arg) = ($event->args);
# Note that $event->to() returns a list (or arrayref, in scalar
# context) of the message's recipients, since there can easily be
# more than one.
# FIXME: the logging gets spammy ... do we actually want to log to stdout?
print "<$nick> $arg\n";
$mynick =~ s/\[/\\[/g;
$mynick =~ s/\]/\\]/g;
print "My nick: $mynick\n";
if ($arg =~ /^$mynick[,: ]/i || $arg =~ /^!/ ) {
if ($arg =~ /^(?:$mynick[,: ]|!)\s*ignore (.+)\s*$/i) {
$ignore{$1} = 1;
$self->privmsg([ @to ], "$nick: ok, ignoring notifications about $1");
} elsif ($arg =~ /^(?:$mynick[,: ]|!)\s*ignore$/i) {
if (keys %ignore) {
foreach my $i (keys %ignore) {
$self->privmsg([ @to ], "$nick: ignoring $i");
}
$self->privmsg([ @to ], "$nick: end of list");
} else {
$self->privmsg([ @to ], "$nick: I'm not currently ignoring any notifications");
}
} elsif ($arg =~ /^(?:$mynick[,: ]|!)\s*unignore (.+)\s*$/i) {
if (!exists($ignore{$1})) {
$self->privmsg([ @to ], "$nick: notifications about $1 weren't being ignored anyway.");
} else {
delete $ignore{$1};
$self->privmsg([ @to ], "$nick: ok, notifications about $1 no longer being ignored.");
}
} elsif ($arg =~ /^(?:$mynick[,: ]|!)+(?:\s*ack\s*)?(\d+)(?:\s*ack\s*)?[:\s]+([^:]+)\s*$/) {
open CMDPIPE,">",$nagioscmd;
my ( $host, $svc ) = @{ $ACKS[$1] || [ undef, undef ] };
if ( defined $host && defined $svc ) {
$self->privmsg([ @to ], "$nick: ok, acknowledgment (if any) for $host:$svc has been added.");
printf CMDPIPE "[%lu] ACKNOWLEDGE_SVC_PROBLEM;%s;%s;1;1;1;%s;%s\n",time(),$host,$svc,$nick,$2;
} elsif ( defined $host ) {
printf CMDPIPE "[%lu] ACKNOWLEDGE_HOST_PROBLEM;%s;1;1;1;%s;%s\n",time(),$host,$nick,$2;
}
close CMDPIPE;
} elsif ($arg =~ /^(?:$mynick[,: ]|!)\s*ack ([^:]+):([^:]+)\s*$/) {
open CMDPIPE,">",$nagioscmd;
printf CMDPIPE "[%lu] ACKNOWLEDGE_HOST_PROBLEM;%s;1;1;1;%s;%s\n",time(),$1,$nick,$2;
close CMDPIPE;
} elsif ($arg =~ /^(?:$mynick[,: ]|!)\s*ack ([^:]+):([^:]+):([^:]+)\s*$/) {
open CMDPIPE,">",$nagioscmd;
printf CMDPIPE "[%lu] ACKNOWLEDGE_SVC_PROBLEM;%s;%s;1;1;1;%s;%s\n",time(),$1,$2,$nick,$3;
close CMDPIPE;
} elsif ($arg =~ /^(?:$mynick[,: ]|!)\s*unack (\d+)$/) {
open CMDPIPE,">",$nagioscmd;
my ( $host, $svc ) = @{ $ACKS[$1] || [ undef, undef ] };
if ( defined $host && defined $svc ) {
printf CMDPIPE "[%lu] REMOVE_SVC_ACKNOWLEDGEMENT;%s;%s\n",time(),$host,$svc;
$self->privmsg([ @to ], "$nick: ok, acknowledgment (if any) for $host:$svc has been removed.");
} elsif ( defined $host ) {
printf CMDPIPE "[%lu] REMOVE_HOST_ACKNOWLEDGEMENT;%s\n",time(),$host;
$self->privmsg([ @to ], "$nick: ok, acknowledgment (if any) for $host has been removed.");
}
close CMDPIPE;
} elsif ($arg =~ /^(?:$mynick[,: ]|!)\s*unack ([^:]+)\s*$/) {
open CMDPIPE,">",$nagioscmd;
printf CMDPIPE "[%lu] REMOVE_HOST_ACKNOWLEDGEMENT;%s\n",time(),$1;
close CMDPIPE;
$self->privmsg([ @to ], "$nick: ok, acknowledgment (if any) for $1 has been removed.");
} elsif ($arg =~ /^(?:$mynick[,: ]|!)\s*unack ([^:]+):([^:]+)\s*$/) {
open CMDPIPE,">",$nagioscmd;
printf CMDPIPE "[%lu] REMOVE_SVC_ACKNOWLEDGEMENT;%s;%s\n",time(),$1,$2;
close CMDPIPE;
$self->privmsg([ @to ], "$nick: ok, acknowledgment (if any) for $1:$2 has been removed.");
} elsif ($arg =~ /^(?:$mynick[,: ]|!)\s*status\s*$/) {
my @lines = ();
open CMDPIPE,"-|","/usr/sbin/icingastats -m -d NUMSVCWARN,NUMSVCCRIT,NUMSVCUNKN";
while (<CMDPIPE>) {
chomp;
push @lines, $_;
}
close CMDPIPE;
my @prefix = ( 'Warn', 'Critical', 'Unknown' );
my $i = 0;
foreach my $line (@lines) {
$self->privmsg([ @to ], "$nick: ".$prefix[$i++].": $line");
}
} elsif ($arg =~ /^(?:$mynick[,: ]|!)\s*help/i) {
$self->privmsg([ @to ], "$nick: You're right, I need help!");
$self->privmsg([ @to ], "$nick: supported commands: ignore, unignore, ack, unack, chut, list, refresh, recheck, help");
} elsif ($arg =~ /(?:hey|hi|hello|yo)(?:\.|,|\!|\s_)/i) {
$self->privmsg([ @to ], "Yo, $nick!");
} elsif ($arg =~ /(?:$mynick[,: ]|!)\s*ta\s*g(:?ueu|o)le/i ||
$arg =~ /(?:$mynick[,: ]|!)\s*chut/i ||
$arg =~ /(?:$mynick[,: ]|!)\s*sieste/i ) {
if ( $::tagueule == 0 )
{
$self->privmsg([ @to ], "$nick: d'accord je la ferme :-(");
$::tagueule = 1;
$self->nick('vivivi[zzz]');
}
else {
$self->privmsg([ @to ], "$nick: je reviens et je ne suis pas content !");
$::tagueule = 0;
&adjust_nick ( $conn );
}
} elsif ($arg =~ /^(?:$mynick[,: ]|!)\s*list\s*$/) {
&refresh ();
my $msg;
if( scalar @ACKS == 0 or scalar @ACKS == 1) {
$msg = "%d probleme enregistre";
} else {
$msg = "%d problemes enregistres";
}
$conn->privmsg([ @to ], sprintf ( $msg, ( scalar @ACKS )) );
my $id = 0;
foreach ( @ACKS )
{
my ( $host, $svc, $state, $content ) = @$_;
my $msg = sprintf ( "[%02d] %s:%s is %s: %s",
($id++), $host, $svc, $state, $content );
$conn->privmsg([ @to ], $msg);
}
} elsif ($arg =~ /^(?:$mynick[,: ]|!)\s*refresh\s*$/) {
&refresh ();
my $msg;
if( scalar @ACKS == 0 or scalar @ACKS == 1) {
$msg = "%d probleme enregistre";
} else {
$msg = "%d problemes enregistres";
}
$conn->privmsg([ @to ], sprintf ( $msg, ( scalar @ACKS )) );
} elsif ($arg =~ /^(?:$mynick[,: ]|!)\s*recheck:?\s*(\d*)$/) {
if ( $ACKS[$1] )
{
my ( $host, $svc ) = @{ $ACKS[$1] || [ undef, undef ] };
open CMDPIPE,">",$nagioscmd;
printf CMDPIPE "[%lu] SCHEDULE_FORCED_SVC_CHECK;%s;%s;%lu\n",time(),$host,$svc,time();
printf "[%lu] SCHEDULE_FORCED_SVC_CHECK;%s;%s;%lu\n",time(),$host,$svc,time();
close CMDPIPE;
$conn->privmsg([ @to ], sprintf ( "Recheck forcé pour %s: %s", $host, $svc ) );
&refresh ();
my $msg;
if( scalar @ACKS == 0 or scalar @ACKS == 1) {
$msg = "%d probleme enregistre";
} else {
$msg = "%d problemes enregistres";
}
$conn->privmsg([ @to ], sprintf ( $msg, ( scalar @ACKS )) );
}
else
{
$conn->privmsg([ @to ], sprintf ( "ID inconnu: %d", $1 ) );
}
} elsif ($arg =~ /^(?:$mynick[,: ]|!)\s*recheck:?\s*all$/) {
#recheck all
&refresh ();
my $msg;
if( scalar @ACKS == 0 or scalar @ACKS == 1) {
$msg = "%d probleme enregistre";
} else {
$msg = "%d problemes enregistres";
}
$conn->privmsg([ @to ], sprintf ( $msg, ( scalar @ACKS )) );
for my $i ( 0..(@ACKS-1) )
{
next unless($ACKS[$i]);
my ( $host, $svc ) = @{ $ACKS[$i] || [ undef, undef ] };;
open CMDPIPE,">",$nagioscmd;
printf CMDPIPE "[%lu] SCHEDULE_FORCED_SVC_CHECK;%s;%s;%lu\n",time(),$host,$svc,time();
printf "[%lu] SCHEDULE_FORCED_SVC_CHECK;%s;%s;%lu\n",time(),$host,$svc,time();
close CMDPIPE;
$conn->privmsg([ @to ], sprintf ( "Recheck forcé pour ack : %s du host %s: %s", $i, $host, $svc ) );
}
} else {
$self->privmsg([ @to ], "Yo!");
}
}
}
# Prints the names of people in a channel when we enter.
sub on_names {
my ($self, $event) = @_;
my (@list, $channel) = ($event->args); # eat yer heart out, mjd!
# splice() only works on real arrays. Sigh.
($channel, @list) = splice @list, 2;
print "Users on $channel: @list\n";
}
sub on_ping {
my ($self, $event) = @_;
$self->sl("PONG " . join(' ', ($event->args)));
}
sub on_pong {
my ($self, $event) = @_;
# don't really need to do anything, just update the time.
}
# Yells about incoming CTCP PINGs.
sub on_ctcpping {
my ($self, $event) = @_;
my $nick = $event->nick;
$self->ctcp_reply($nick, join (' ', ($event->args)));
print "*** CTCP PING request from $nick received\n";
}
# Yells about incoming CTCP VERSIONs.
sub on_ctcpversion {
my ($self, $event) = @_;
my $nick = $event->nick;
$self->ctcp_reply($nick, join (' ', ($event->args, $version)));
print "*** CTCP VERSION request from $nick received\n";
}
# Gives lag results for outgoing PINGs.
sub on_ping_reply {
my ($self, $event) = @_;
my ($args) = ($event->args)[1];
my ($nick) = $event->nick;
$args = time - $args;
print "*** CTCP PING reply from $nick: $args sec.\n";
}
# Change our nick if someone stole it.
sub on_nick_taken {
my ($self) = shift;
my ($nick,$num) = $self->nick =~ /^(.+)(\d+)?$/;
$num ||= 0;
$self->nick($nick . ($num + 1));
}
# Display formatted CTCP ACTIONs.
sub on_action {
my ($self, $event) = @_;
my ($nick, @args) = ($event->nick, $event->args);
print "* $nick @args\n";
}
# Reconnect to the server when we die.
sub on_disconnect {
my ($self, $event) = @_;
print "Disconnected from ", $event->from(), " (",
($event->args())[0], "). Attempting to reconnect...\n";
$identified_to_nickserv = 0;
while (!$self->connected) {
$self->connect();
if (!$self->connected) { print "Redialing...\n" }
}
}
# Look at the topic for a channel you join.
sub on_topic {
}
sub on_notice {
my ($self, $event) = @_;
my @args = $event->args();
# FIXME: the nickserv path is broken ...
if ((lc($event->nick) eq "nickserv") && ($args[0] =~ "nickname is registered")) {
# print "Identifying to NickServ...\n";
# $self->privmsg('nickserv',"identify xxx");
}
# FIXME: the nickserv path is broken ...
if ((lc($event->nick) eq "nickserv") && ($args[0] =~ "You are now identified")) {
#nickserv identification successful, so let's join channels.
$identified_to_nickserv = 1;
print "Joining channels...\n";
# CONFIG: channels that should be joined go here.
$self->join($channel);
}
}
sub ackable {
my ( $host, $svc, $state, $msg ) = @_;
return '' unless $state eq 'WARNING' || $state eq 'CRITICAL' || $state eq 'UNKNOWN' || $state eq 'DOWN';
my $id = $ACKCT++ % 100;
$ACKS[$id] = [ $host, $svc, $state, $msg ];
return sprintf( '[%02d] ', $id );
}
sub refresh {
$ACKCT=0;
@ACKS=();
open FILE, '/var/lib/icinga/status.dat' or die $!;
while ( <FILE> )
{
if ( /^servicestatus/ )
{
my %keys;
do
{
$_ = <FILE>;
chomp;
$keys{$1} = $2 if ( /\s*([^=]*)=([^=]*)/ );
}
while ( $_ && ! /^}/ );
my @states = ( 'OK', 'WARNING', 'CRITICAL', 'UNKNOWN' );
$ACKS[$ACKCT++] = [ $keys{'host_name'}, $keys{'service_description'}, $states[$keys{'current_state'}], $keys{'plugin_output'} ] if $keys{'current_state'} > 0;
}
}
close FILE;
}
print "Installing handler routines...";
$conn->add_global_handler('ping', \&on_ping);
$conn->add_global_handler('pong', \&on_pong);
$conn->add_handler('cping', \&on_ctcpping);
$conn->add_handler('crping', \&on_ping_reply);
$conn->add_handler('cversion', \&on_ctcpversion);
$conn->add_handler('msg', \&on_msg);
$conn->add_handler('public', \&on_public);
$conn->add_handler('caction', \&on_action);
$conn->add_handler('join', \&on_join);
$conn->add_handler('part', \&on_part);
#$conn->add_handler('topic', \&on_topic);
$conn->add_handler('notopic', \&on_topic);
$conn->add_handler('notice', \&on_notice);
$conn->add_global_handler([ 251,252,253,254,302,255 ], \&on_init);
$conn->add_global_handler('disconnect', \&on_disconnect);
$conn->add_global_handler(376, \&on_connect);
$conn->add_global_handler(433, \&on_nick_taken);
$conn->add_global_handler(353, \&on_names);
print " done.\n";
my %C = (
W => "\x0315",
B => "\x032",
G => "\x033",
R => "\x034",
O => "\x037",
C => "\x0311",
Y => "\x038",
N => "\x0315",
);
my $state_to_color = {
OK => $C{G},
WARNING => $C{Y},
CRITICAL => $C{R},
UNKNOWN => $C{C},
};
print "starting...\n";
my %renot; # { "host" or "host:service" => time_last_notification }
while (1) {
$irc->do_one_loop();
if ($identified_to_nickserv) {
# CONFIG: change where we announce stuff here
my @channels = ($channel);
while (defined (my $line = <NAGIOS>)) {
print $line;
chomp($line);
next if $::tagueule;
if ($line =~ /^\[\d+\] (HOST|SERVICE) NOTIFICATION: (.+)$/) {
my ($type, $msg) = ($1, $2);
my ($who, $host, $service, $state, $how, $output);
if ($type eq "HOST") {
($who, $host, $state, $how, $output) = split(";",$msg,5);
next if exists $renot{$host} && $renot{$host} >= time() - 5;
$renot{$host} = time();
my $id = ackable($host,undef,$state,$output);
$msg = $state_to_color->{$state} . "$id$host is $state: $output";
&adjust_nick ( $conn );
}
else {
($who, $host, $service, $state, $how, $output) = split(";",$msg,6);
next if exists $renot{"$host:$service"} && $renot{"$host:$service"} >= time() - 5;
$renot{"$host:$service"} = time();
my $id = ackable($host,$service,$state,$output);
$output =~ s/^\s*CRITICAL\s*:\s//gi;
$output =~ s/^\s*WARNING\s*:\s//gi;
$output =~ s/^\s*OK\s*:\s//gi;
$msg = $state_to_color->{$state} . "$id$host:$service is $state: $output";
&adjust_nick ( $conn );
}
$service ||= "";
# alerts can be separated by who they're for (which group is getting it)
#if ($who eq "mark") { push @channels, "#dw_ops", "#dw_work" }
if ((!grep { $_ eq "$host:$service" } keys %ignore) &&
(!grep { $_ eq "$host" } keys %ignore)) {
$conn->privmsg($_,"$msg") foreach @channels;
}
#[1310493492] EXTERNAL COMMAND: SCHEDULE_HOST_DOWNTIME;gearmanworker-gearmanworker3;1310492897;1310500097;1;0;28800;stumble.barr;rebooting
} elsif ($line =~ /EXTERNAL COMMAND: SCHEDULE_HOST_DOWNTIME;(.+?);(\d+);(\d+);\d+;\d+;\d+;(.+?);(.+)$/) {
my $ns = $3 - $2;
$conn->privmsg($_, "Downtime (${ns}s) scheduled for host $1 by $4: $5")
foreach @channels;
} elsif ($line =~ /EXTERNAL COMMAND: SCHEDULE_SVC_DOWNTIME;(.+?);(.+?);(\d+);(\d+);\d+;\d+;\d+;(.+?);(.+)$/) {
my $ns = $4 - $3;
$conn->privmsg($_, "Downtime (${ns}s) scheduled for service $1: $2 by $5: $6")
foreach @channels;
} elsif ($line =~ /EXTERNAL COMMAND: (EN|DIS)ABLE_HOST_(SVC_)?NOTIFICATIONS;(.+)$/) {
my $type = $2 ? 'All service' : 'Host';
my $verb = $1 eq 'EN' ? "$C{G}enabled$C{N}" : "$C{R}disabled$C{N}";
$conn->privmsg($_, "$type notifications $verb: $C{O}$3")
foreach @channels;
} elsif ($line =~ /EXTERNAL COMMAND: (EN|DIS)ABLE_(SVC_)?NOTIFICATIONS;(.+?);(.+)$/) {
my $verb = $1 eq 'EN' ? "$C{G}enabled$C{N}" : "$C{R}disabled$C{N}";
$conn->privmsg($_, "Service notifications $verb on $C{O}$3$C{N}: $C{O}$4")
foreach @channels;
} elsif ($line =~ /HOST DOWNTIME ALERT: (.+?);(.+?);/) {
my $vb = { CANCELLED => 'been manually removed from', STOPPED => 'exited from', STARTED => 'entered' }->{$2};
$conn->privmsg($_, "Host $C{O}$1$C{N} has $vb scheduled downtime.")
foreach @channels;
} elsif ($line =~ /SERVICE DOWNTIME ALERT: (.+?);(.+?);(.+?);/) {
my $vb = { CANCELLED => 'been manually removed from', STOPPED => 'exited from', STARTED => 'entered' }->{$3};
$conn->privmsg($_, "Service $C{O}$1$C{N}: $C{O}$2$C{N} has $vb scheduled downtime.")
foreach @channels;
}
}
if ((time - $laststat) > 30) {
# we don't want to constantly stat the file or we'll hammer the disk.
# keep it to once every 30 seconds. Here we compare the inode of the
# file we have open and the file at the path we're expecting and see
# if they match. If they don't, then the log has been rotated, so we
# close and reopen it to pick up the new logfile. We also only do it
# if we don't read a line from the file, so that way we make sure
# actually gotten to the end of the current file before we check for
# a rotation.
$laststat = time;
if ((stat NAGIOS)[1] != (stat $nagioslog)[1]) {
close NAGIOS;
open NAGIOS, "<$nagioslog";
}
&adjust_nick ( $conn );
}
}
}
sub adjust_nick
{
my ( $conn ) = @_;
open CMDPIPE,"-|","/usr/sbin/icingastats -m -d NUMSVCWARN,NUMSVCCRIT,NUMSVCUNKN";
my $count = 0;
while (<CMDPIPE>) {
$count += $_;
}
close CMDPIPE;
if ( $::tagueule )
{
$conn->nick('vivivi[zzz]');
}
elsif ( $count > 0 )
{
$conn->nick(sprintf('vivivi[%d]', $count));
}
else
{
$conn->nick('vivivi');
}
}
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