Files
cacti/remote_agent.php
T

265 lines
7.7 KiB
PHP

<?php
/*
+-------------------------------------------------------------------------+
| Copyright (C) 2004-2016 The Cacti Group |
| |
| This program is free software; you can redistribute it and/or |
| modify it under the terms of the GNU General Public License |
| as published by the Free Software Foundation; either version 2 |
| of the License, or (at your option) any later version. |
| |
| This program is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| GNU General Public License for more details. |
+-------------------------------------------------------------------------+
| Cacti: The Complete RRDTool-based Graphing Solution |
+-------------------------------------------------------------------------+
| This code is designed, written, and maintained by the Cacti Group. See |
| about.php and/or the AUTHORS file for specific developer information. |
+-------------------------------------------------------------------------+
| http://www.cacti.net/ |
+-------------------------------------------------------------------------+
*/
/* We are not talking to the browser */
$no_http_headers = true;
include('./include/global.php');
include_once('./lib/api_device.php');
include_once('./lib/data_query.php');
include_once('./lib/poller.php');
include_once('./lib/ping.php');
include_once('./lib/snmp.php');
if (!remote_client_authorized()) {
print 'FATAL: You are not authorized to use this service';
exit;
}
set_default_action();
switch (get_request_var('action')) {
case 'polldata':
poll_for_data();
break;
case 'runquery':
run_remote_data_query();
break;
case 'ping':
ping_device();
break;
case 'snmpget':
get_snmp_data();
break;
case 'snmpwalk':
get_snmp_walk_data();
break;
default:
print 'Unknown agent request';
}
exit;
function strip_domain($host) {
if (strpos($host, '.') !== false) {
$parts = explode('.', $host);
return $parts[0];
}else{
return $host;
}
}
function remote_client_authorized() {
/* don't allow to run from the command line */
if (!isset($_SERVER['REMOTE_ADDR'])) return false;
$client_addr = $_SERVER['REMOTE_ADDR'];
$client_name = strip_domain(gethostbyaddr($client_addr));
$pollers = db_fetch_assoc('SELECT * FROM poller');
if (sizeof($pollers)) {
foreach($pollers as $poller) {
if (strip_domain($poller['hostname']) == $client_name) {
return true;
}elseif ($poller['hostname'] == $client_addr) {
return true;
}
}
}
return false;
}
function get_snmp_data() {
$host_id = get_filter_request_var('host_id');
$oid = get_nfilter_request_var('oid');
if (!empty($host_id)) {
$host = db_fetch_row_prepared('SELECT * FROM host WHERE id = ?', array($host_id));
$session = cacti_snmp_session($host['hostname'], $host['snmp_community'], $host['snmp_version'],
$host['snmp_username'], $host['snmp_password'], $host['snmp_auth_protocol'], $host['snmp_priv_passphrase'],
$host['snmp_priv_protocol'], $host['snmp_context'], $host['snmp_engine_id'], $host['snmp_port'],
$host['snmp_timeout'], $host['ping_retries'], $host['max_oids']);
if ($session === false) {
$output = 'U';
}else{
$output = cacti_snmp_session_get($session, $oid);
$session->close();
}
}
print $output;
}
function get_snmp_data_walk() {
$host_id = get_filter_request_var('host_id');
$oid = get_nfilter_request_var('oid');
if (!empty($host_id)) {
$host = db_fetch_row_prepared('SELECT * FROM host WHERE id = ?', array($host_id));
$session = cacti_snmp_session($host['hostname'], $host['snmp_community'], $host['snmp_version'],
$host['snmp_username'], $host['snmp_password'], $host['snmp_auth_protocol'], $host['snmp_priv_passphrase'],
$host['snmp_priv_protocol'], $host['snmp_context'], $host['snmp_engine_id'], $host['snmp_port'],
$host['snmp_timeout'], $host['ping_retries'], $host['max_oids']);
if ($session === false) {
$output = 'U';
}else{
$output = cacti_snmp_session_walk($session, $oid);
$session->close();
}
}
if (sizeof($output)) {
print json_encode($output);
}else{
print 'U';
}
}
function ping_device() {
$host_id = get_filter_request_var('host_id');
api_device_ping_device($host_id, true);
}
function poll_for_data() {
$local_data_id = get_filter_request_var('local_data_id');
$host_id = get_filter_request_var('host_id');
$item = db_fetch_row_prepared('SELECT *
FROM poller_item
WHERE host_id = ?
AND local_data_id = ?',
array($host_id, $local_data_id));
if (sizeof($item)) {
switch ($item['action']) {
case POLLER_ACTION_SNMP: /* snmp */
if (($item['snmp_version'] == 0) || (($item['snmp_community'] == '') && ($item['snmp_version'] != 3))) {
$output = 'U';
}else {
$host = db_fetch_row_prepared('SELECT ping_retries, max_oids FROM host WHERE hostname = ?', array($item['hostname']));
$session = cacti_snmp_session($item['hostname'], $item['snmp_community'], $item['snmp_version'],
$item['snmp_username'], $item['snmp_password'], $item['snmp_auth_protocol'], $item['snmp_priv_passphrase'],
$item['snmp_priv_protocol'], $item['snmp_context'], $item['snmp_engine_id'], $item['snmp_port'],
$item['snmp_timeout'], $host['ping_retries'], $host['max_oids']);
if ($session === false) {
$output = 'U';
}else{
$output = cacti_snmp_session_get($session, $item['arg1']);
$session->close();
}
if (prepare_validate_result($output) === false) {
if (strlen($output) > 20) {
$strout = 20;
} else {
$strout = strlen($output);
}
$output = 'U';
}
}
break;
case POLLER_ACTION_SCRIPT: /* script (popen) */
$output = trim(exec_poll($item['arg1']));
if (prepare_validate_result($output) === false) {
if (strlen($output) > 20) {
$strout = 20;
} else {
$strout = strlen($output);
}
$output = 'U';
}
break;
case POLLER_ACTION_SCRIPT_PHP: /* script (php script server) */
$cactides = array(
0 => array('pipe', 'r'), // stdin is a pipe that the child will read from
1 => array('pipe', 'w'), // stdout is a pipe that the child will write to
2 => array('pipe', 'w') // stderr is a pipe to write to
);
if (function_exists('proc_open')) {
$cactiphp = proc_open(read_config_option('path_php_binary') . ' -q ' . $config['base_path'] . '/script_server.php realtime', $cactides, $pipes);
$output = fgets($pipes[1], 1024);
$using_proc_function = true;
}else {
$using_proc_function = false;
}
if ($using_proc_function == true) {
$output = trim(str_replace("\n", '', exec_poll_php($item['arg1'], $using_proc_function, $pipes, $cactiphp)));
if (prepare_validate_result($output) === false) {
if (strlen($output) > 20) {
$strout = 20;
} else {
$strout = strlen($output);
}
$output = 'U';
}
}else{
$output = 'U';
}
if (($using_proc_function == true) && ($script_server_calls > 0)) {
/* close php server process */
fwrite($pipes[0], "quit\r\n");
fclose($pipes[0]);
fclose($pipes[1]);
fclose($pipes[2]);
$return_value = proc_close($cactiphp);
}
break;
}
}
print $output;
}
function run_remote_data_query() {
$host_id = get_filter_request_var('host_id');
$data_query_id = get_filter_request_var('data_query_id');
if ($host_id > 0 && $data_query_id > 0) {
run_data_query($host_id, $data_query_id);
}
}