150 lines
3.2 KiB
Perl
Executable File
150 lines
3.2 KiB
Perl
Executable File
#!/usr/bin/perl
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use strict;
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use warnings;
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use JSON;
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use Data::Dumper;
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my $json = <>;
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my $message = decode_json($json);
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my $statuses = {
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'2' => 'Critical',
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'1' => 'Warning',
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'0' => 'Ok'
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};
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# Get client values
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my $client_name = $message->{client}->{name};
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my $client_addr = $message->{client}->{address};
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my $timestamp = localtime( $message->{client}->{timestamp} );
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# Get check information
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my $check_name = $message->{check}->{name};
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my $check_out = $message->{check}->{output};
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my $check_command = $message->{check}->{command};
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my $check_interval = $message->{check}->{interval};
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my $check_status = $statuses->{ $message->{check}->{status} };
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my @ch = $message->{check}->{history};
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my @check_history;
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foreach my $c (@ch) {
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@check_history = @$c;
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}
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# Count history
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my $ok_count = 0;
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my $warn_count = 0;
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my $crit_count = 0;
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my $total = @check_history;
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foreach my $stat (@check_history) {
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if ( $stat eq '2' ) {
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$crit_count++;
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}
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elsif ( $stat eq '1' ) {
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$warn_count++;
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}
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else {
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$ok_count++;
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}
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}
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# Build mail body message
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my $mail_body = "
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$timestamp
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----------------------------------------------------
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$client_name with $client_addr status: $check_status
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=== Summary ===
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CHECK: $check_name
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CHECK COMMAND: $check_command
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CHECK MESSAGE: $check_out
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=== Check history ===
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Check interval in seconds: $check_interval
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TOTAL: $total
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OK: $ok_count
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WARNING: $warn_count
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CRITICAL: $crit_count
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";
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# Send email
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my $mail_cmd = 'mail';
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my $mail_subg
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= "$client_name with address $client_addr status: $check_status";
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my $mail_to = 'admins@example.com';
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# Make text file
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my $mail_file = '/tmp/' . $message->{client}->{timestamp} . 'mail.txt';
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open my $mail_fh, '>', $mail_file or die "$!\n";
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print $mail_fh $mail_body;
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close $mail_fh;
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# Write current status to file
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sub write_status {
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my ( $check_name, $status ) = @_;
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my $check_run_file = '/etc/sensu/handlers/run/' . $check_name;
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open my $run, '>', $check_run_file or die "Cannot open file: $!\n";
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print $run $status;
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close($run);
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}
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# Get previous status
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sub get_previous_status {
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my ( $check_name, $status ) = @_;
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my $check_run_file = '/etc/sensu/handlers/run/' . $check_name;
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my $previous_check_status;
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if ( -e $check_run_file ) {
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open my $run, '<', $check_run_file or warn "Cannot open file: $!\n";
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while (<$run>) {
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$previous_check_status = $_;
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}
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close($run);
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write_status( $check_name, $status );
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return $previous_check_status;
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}
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# New checks hack
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else {
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write_status( $check_name, $status );
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return -1;
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}
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}
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# Check status
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sub status_change {
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my $current_check_status = $message->{check}->{status};
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# Get provious check status
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my $previous_check_status
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= get_previous_status( $check_name, $current_check_status );
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if ( $previous_check_status == $current_check_status ) {
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return -1;
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}
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else {
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return 0;
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}
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}
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# Send it if status changed
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if ( status_change == 0 ) {
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`cat $mail_file | $mail_cmd -v -s "'$mail_subg'" $mail_to`;
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}
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else {
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print "Status not changes\n";
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}
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# Remove temp file
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my @rm_cmd = ( 'rm', '-f', $mail_file );
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system(@rm_cmd) == 0 or die "$!\n";
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