When Nagios send alert mails with attachement…
When Nagios send alert mails with attachement…
Perhaps this problem is that if a device name or warning message include non-Latin characters.
1. Add new command to nagios configuration
Original commands
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# 'notify-host-by-email' command definition define command{ command_name notify-host-by-email command_line /usr/bin/printf "%b" "***** Nagios *****\n\nNotification Type: $NOTIFICATIONTYPE$\nHost: $HOSTNAME$\nState: $HOSTSTATE$\nAddress: $HOSTADDRESS$\nInfo: $HOSTOUTPUT$\n\nDate/Time: $LONGDATETIME$\n" | /usr/bin/mail -s "** $NOTIFICATIONTYPE$ Host Alert: $HOSTNAME$ is $HOSTSTATE$ **" $CONTACTEMAIL$ } # 'notify-service-by-email' command definition define command{ command_name notify-service-by-email command_line /usr/bin/printf "%b" "***** Nagios *****\n\nNotification Type: $NOTIFICATIONTYPE$\n\nService: $SERVICEDESC$\nHost: $HOSTALIAS$\nAddress: $HOSTADDRESS$\nState: $SERVICESTATE$\n\nDate/Time: $LONGDATETIME$\n\nAdditional Info:\n\n$SERVICEOUTPUT$\n" | /usr/bin/mail -s "** $NOTIFICATIONTYPE$ Service Alert: $HOSTALIAS$/$SERVICEDESC$ is $SERVICESTATE$ **" $CONTACTEMAIL$ } |
New commands
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define command { command_name notify-host-by-email-encodingsafe command_line /usr/bin/printf "%b" "***** Nagios *****\n\nNotification Type: $NOTIFICATIONTYPE$\nHost: $HOSTNAME$\nState: $HOSTSTATE$\nAddress: $HOSTADDRESS$\nInfo: $HOSTOUTPUT$\n\nDate/Time: $LONGDATETIME$\n" | /usr/bin/env php /usr/local/bin/convert-encoding.php | /usr/bin/mail -s "** $NOTIFICATIONTYPE$ Host Alert: $HOSTNAME$ is $HOSTSTATE$ **" $CONTACTEMAIL$ } define command { command_name notify-service-by-email-encodingsafe command_line /usr/bin/printf "%b" "***** Nagios *****\n\nNotification Type: $NOTIFICATIONTYPE$\n\nService: $SERVICEDESC$\nHost: $HOSTALIAS$\nAddress: $HOSTADDRESS$\nState: $SERVICESTATE$\n\nDate/Time: $LONGDATETIME$\n\nAdditional Info:\n\n$SERVICEOUTPUT$\n" | /usr/bin/env php /usr/local/bin/convert-encoding.php | /usr/bin/mail -s "** $NOTIFICATIONTYPE$ Service Alert: $HOSTALIAS$/$SERVICEDESC$ is $SERVICESTATE$ **" $CONTACTEMAIL$ } |
2. Message filter script (PHP)
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<?php /* +-------------------------------------------------------------------------+ | Copyright (C) 2016 Aiden Kim | +-------------------------------------------------------------------------+ */ /* do NOT run this script through a web browser */ if (!isset($_SERVER['argv'][0]) || isset($_SERVER['REQUEST_METHOD']) || isset($_SERVER['REMOTE_ADDR'])) { die('<br><strong>This script is only meant to run at the command line.</strong>'); } /* We are not talking to the browser */ $no_http_headers = true; /* Supress all internal error */ error_reporting(0); /* process calling arguments */ $parms = $_SERVER['argv']; array_shift($parms); /* stdin */ $handle = fopen ("php://stdin","r"); $stdin = stream_get_contents($handle); if (sizeof($parms) || !empty($stdin)) { $input_string = ''; $output_string = ''; $input_file = ''; $output_file = ''; $input_encoding = ''; $output_encoding = 'UTF-8'; $detection_order = 'SJIS-win,SJIS,eucJP-win,EUC-JP,ISO-2022-JP-MS,ISO-2022-JP,CP51932,CP932,EUC-KR,ISO-2022-KR,GB18030,BIG-5,EUC-CN,EUC-TW,CP950,UTF-8,UTF-16,UCS-2,UCS-4,8bit,ASCII,7bit'; for ($i=0; $i<count($parms); $i++) { @list($arg, $value) = @explode('=', $parms[$i]); switch ($arg) { case '--input-file': $input_file = trim($value); break; case '--output-file': $output_file = trim($value); break; case '--input-encoding': $input_encoding = trim($value); break; case '--output-encoding': $output_encoding = trim($value); break; case '--detection-order': $detection_order = trim($value); break; default: if ( $i < count($parms)-1 ) { echo 'ERROR: Invalid Argument: ('.$arg.')'.PHP_EOL.PHP_EOL; exit(1); }else{ $input_string = trim($parms[$i]); } } } if (!empty($stdin)) { $input_string = $stdin; } if (empty($input_string)) { if (empty($input_file)) { echo 'ERROR: No Input String (Requiring at least one of [STRING] and [--input-file])'.PHP_EOL.PHP_EOL; display_help(); exit(1); }else{ $input_string = @file_get_contents($input_file); if ($input_string===false) { echo 'ERROR: Could Not Read Input File ('.$input_file.')'.PHP_EOL.PHP_EOL; exit(1); } } } if (empty($input_encoding)) { $input_encoding = @mb_detect_encoding($input_string, $detection_order); } $output_string = @mb_convert_encoding($input_string, $output_encoding, $input_encoding); if (!empty($output_file)) { $ret = @file_put_contents($output_file, $output_string); if ($ret===false) { echo 'ERROR: Could Not Write Output File ('.$output_file.')'.PHP_EOL.PHP_EOL; exit(1); } }else{ echo $output_string; } exit(0); } else { echo 'ERROR: no parameters given'.PHP_EOL.PHP_EOL; display_help(); exit(1); } function display_help() { echo 'Usage: convertcharset.php [OPTION]... [STRING]'.PHP_EOL; echo 'STRING is the source string will be encoded.'.PHP_EOL; echo 'OPTION:'.PHP_EOL; echo ' --input-file=FILE Path to the file where to read source data.'.PHP_EOL; echo ' --input-encoding=ENCODING The character code name of source data.'.PHP_EOL; echo ' --output-file=FILE Path to the file where to write converted data. '.PHP_EOL; echo ' --output-encoding=ENCODING The character code name of converted data. Default UTF-8.'.PHP_EOL; echo ' --detection-order=ENCODING[,ENCODING]... Encoding order list of character encoding. List may be comma separated list string. '.PHP_EOL; } ?> |
Actually I wanted to make a filter by Python. But it was less accurate than PHP to determine the encoding of the input string.
