Cacti中为每主机定义不同的Down机报警邮件接收地址

珀耳塞福建

　　cacti属于轻量级的监控系统，默认只能配置一个报警信箱，为了协同作业，需要增加报警信箱，实现每台主机配置一个报警信箱，详情如下：
　　环境：Cacti 0.8.7g Monitor1.2.1 Thold 0.4.1
　　1、cacti.host表增加一个字段  alertMail
　　ALTER TABLE host ADD alertMail varchar(200) default '' not null AFTER monitor_text;

2、修改脚本/plugins/monitor/setup.php, 设置Host管理表单项，找到monitor_config_form()方法， 在$fields_host_edit3['monitor_text']数组变量下加 入$fields_host_edit3['alertMail']数组，如下：
　　    $fields_host_edit3['alertMail'] = array(
"method" => "textbox",
"friendly_name" => "Alert Email",
"description" => "This is the email address that will be sent when this host is reported as down.",
"value" => "|arg1:alertMail|",
"max_length" => "250",
);

找到monitor_api_device_save()方法，在return $save;一行的上面，增加如下代码
　　if (isset($_POST['alertMail']))
$save['alertMail'] = form_input_validate($_POST['alertMail'], 'alertMail', '', true, 3);
else
$save['alertMail'] = form_input_validate('', 'alertMail', '', true, 3);

3、修改脚本/plugins/thold/includes/polling.php, 将thold_update_host_status()方法替换为如下：
　　    function thold_update_host_status () {
global $config;
// Return if we aren't set to notify
$deadnotify = (read_config_option('alert_deadnotify') == 'on');
if (!$deadnotify) return 0;
include_once($config['base_path'] . '/plugins/thold/thold_functions.php');

$alert_email = read_config_option('alert_email');
$ping_failure_count = read_config_option('ping_failure_count');
// Lets find hosts that were down, but are now back up
$failed = read_config_option('thold_failed_hosts', true);
$failed = explode(',', $failed);
if (!empty($failed)) {
foreach($failed as $id) {
if ($id != '') {
$host = db_fetch_row('SELECT id, status, description, hostname, alertMail FROM host WHERE id = ' . $id);
if ($host['status'] == HOST_UP) {
$subject = 'Host Notice : ' . $host['description'] . ' (' . $host['hostname'] . ') returned from DOWN state';
$msg = $subject;
if($host['alertMail']){
$alert_email .= ','.$host['alertMail'];
}
if ($alert_email == '') {
cacti_log('THOLD: Can not send Host Recovering email since the \'Alert e-mail\' setting is not set!', true, 'POLLER');
} else {
thold_mail($alert_email, '', $subject, $msg, '');
}
}
}
}
}
// Lets find hosts that are down
$hosts = db_fetch_assoc('SELECT id, description, hostname, status_last_error, alertMail FROM host WHERE disabled="" AND status=' . HOST_DOWN . ' AND status_event_count=' . $ping_failure_count);
$total_hosts = sizeof($hosts);
if (count($hosts)) {
foreach($hosts as $host) {
$subject = 'Host Error : ' . $host['description'] . ' (' . $host['hostname'] . ') is DOWN';
$msg = 'Host Error : ' . $host['description'] . ' (' . $host['hostname'] . ') is DOWN<br>Message : ' . $host['status_last_error'];
if($host['alertMail']){
$alert_email .= ','.$host['alertMail'];
}
if ($alert_email == '') {
cacti_log('THOLD: Can not send Host Down email since the \'Alert e-mail\' setting is not set!', true, 'POLLER');
} else {
thold_mail($alert_email, '', $subject, $msg, '');
}
}
}
// Now lets record all failed hosts
$hosts = db_fetch_assoc('SELECT id FROM host WHERE status != ' . HOST_UP);
$failed = array();
if (!empty($hosts)) {
foreach ($hosts as $host) {
$failed[] = $host['id'];
}
}
$failed = implode(',', $failed);
db_execute(&quot;REPLACE INTO settings (name, value) VALUES ('thold_failed_hosts', '$failed')&quot;);
return $total_hosts;
}


完成。