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016b29ade0eafcb0ce780e5291ee89f9c575b142
cacti/cmd.php
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Larry Adams 016b29ade0 testing of cmd.php fix identifies misuse of function. 
git-svn-id: svn+ssh://repo.cacti.net/var/data/svnroot/cacti/branches/BRANCH_0_8_6/cacti@3836 860744bd-22fc-0310-8c96-e9fe5004b5ca
2006-12-31 07:49:25 +00:00

396 lines
17 KiB
PHP
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#!/usr/bin/php -q
<?php
/*
+-------------------------------------------------------------------------+
| Copyright (C) 2004 Ian Berry |
| |
| 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: a php-based graphing solution |
+-------------------------------------------------------------------------+
| Most of this code has been designed, written and is maintained by |
| Ian Berry. See about.php for specific developer credit. Any questions |
| or comments regarding this code should be directed to: |
| - iberry@raxnet.net |
+-------------------------------------------------------------------------+
| - raXnet - http://www.raxnet.net/ |
+-------------------------------------------------------------------------+
*/
/* do NOT run this script through a web browser */
if (!isset($_SERVER["argv"][0])) {
die("<br><strong>This script is only meant to run at the command line.</strong>");
}
$start = date("Y-n-d H:i:s"); // for runtime measurement
ini_set("max_execution_time", "0");
ini_set("memory_limit", "32M");
$no_http_headers = true;
include(dirname(__FILE__) . "/include/config.php");
include_once($config["base_path"] . "/lib/snmp.php");
include_once($config["base_path"] . "/lib/poller.php");
include_once($config["base_path"] . "/lib/rrd.php");
include_once($config["base_path"] . "/lib/ping.php");
/* Correct for a Windows PHP Bug. Fixed in 5.2.0 */
if ($config["cacti_server_os"] == "win32") {
/* check PHP versions first, we know 5.2.0 and above is fixed */
if (version_compare("5.2.0", PHP_VERSION, "<")) {
$guess = substr(__FILE__,0,2);
if ($guess == strtoupper($guess)) {
$response = "ERROR: The PHP Script: CMD.PHP Must be started using the full path to the file and in lower case. This is a PHP Bug!!!";
print "\n";
cacti_log($response,true);
exit(-1);
}
}
}
/* Record Start Time */
list($micro,$seconds) = split(" ", microtime());
$start = $seconds + $micro;
if ( $_SERVER["argc"] == 1 ) {
$polling_items = db_fetch_assoc("SELECT * from poller_item ORDER by host_id");
$print_data_to_stdout = true;
/* Get number of polling items from the database */
$hosts = db_fetch_assoc("select * from host where disabled = '' order by id");
$hosts = array_rekey($hosts,"id",$host_struc);
$host_count = sizeof($hosts);
$script_server_calls = db_fetch_cell("SELECT count(*) from poller_item WHERE action=2");
}else{
$print_data_to_stdout = false;
if ($_SERVER["argc"] == "3") {
if ($_SERVER["argv"][1] <= $_SERVER["argv"][2]) {
/* address potential exploits */
input_validate_input_number($_SERVER["argv"][1]);
input_validate_input_number($_SERVER["argv"][2]);
$hosts = db_fetch_assoc("
SELECT * FROM host
WHERE (disabled = ''
AND id >= " . $_SERVER["argv"][1] . "
AND id <= " . $_SERVER["argv"][2] . ")
ORDER by id");
$hosts = array_rekey($hosts,"id",$host_struc);
$host_count = sizeof($hosts);
$polling_items = db_fetch_assoc("
SELECT * from poller_item
WHERE (host_id >= " . $_SERVER["argv"][1] . "
AND host_id <= " . $_SERVER["argv"][2] . ")
ORDER by host_id");
$script_server_calls = db_fetch_cell("
SELECT count(*)
FROM poller_item
WHERE (action=2
AND (host_id >= " . $_SERVER["argv"][1] . "
AND host_id <= " . $_SERVER["argv"][2] . "))");
}else{
print "ERROR: Invalid Arguments. The first argument must be less than or equal to the first.\n";
print "USAGE: CMD.PHP [[first_host] [second_host]]\n";
cacti_log("ERROR: Invalid Arguments. This rist argument must be less than or equal to the first.");
}
}else{
cacti_log("ERROR: Invalid Number of Arguments. You must specify 0 or 2 arguments.",$print_data_to_stdout);
}
}
if ((sizeof($polling_items) > 0) && (read_config_option("poller_enabled") == "on")) {
$failure_type = "";
$host_down = false;
$new_host = true;
$last_host = ""; $current_host = "";
// create new ping socket for host pinging
$ping = new Net_Ping;
// startup Cacti php polling server and include the include file for script processing
if ($script_server_calls > 0) {
$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") . " " . $config["base_path"] . "/script_server.php cmd", $cactides, $pipes);
$output = fgets($pipes[1], 1024);
if (substr_count($output, "Started") != 0) {
if (read_config_option("log_verbosity") >= POLLER_VERBOSITY_HIGH) {
cacti_log("PHP Script Server Started Properly",$print_data_to_stdout);
}
}
$using_proc_function = true;
}else {
$using_proc_function = false;
if (read_config_option("log_verbosity") == POLLER_VERBOSITY_DEBUG) {
cacti_log("WARNING: PHP version 4.3 or above is recommended for performance considerations.",$print_data_to_stdout);
}
}
}else{
$using_proc_function = FALSE;
}
foreach ($polling_items as $item) {
$data_source = $item["local_data_id"];
$current_host = $item["hostname"];
if ($current_host != $last_host) {
$new_host = true;
/* assume the host is up */
$host_down = false;
/* assume we don't have to spike prevent */
$set_spike_kill = false;
$host_update_time = date("Y-m-d H:i:s"); // for poller update time
}
$host_id = $item["host_id"];
if (($new_host) && (!empty($host_id))) {
$ping->host["hostname"] = $item["hostname"];
$ping->host["snmp_community"] = $item["snmp_community"];
$ping->host["snmp_version"] = $item["snmp_version"];
$ping->host["snmp_username"] = $item["snmp_username"];
$ping->host["snmp_password"] = $item["snmp_password"];
$ping->host["snmp_port"] = $item["snmp_port"];
$ping->host["snmp_timeout"] = $item["snmp_timeout"];
if ((!function_exists("socket_create")) || (phpversion() < "4.3")) {
/* the ping test will fail under PHP < 4.3 without socket support */
$ping_availability = AVAIL_SNMP;
}else{
$ping_availability = read_config_option("availability_method");
}
/* if we are only allowed to use an snmp check and this host does not support snnp, we
must assume that this host is up */
if (($ping_availability == AVAIL_SNMP) && ($item["snmp_community"] == "")) {
$host_down = false;
update_host_status(HOST_UP, $host_id, $hosts, $ping, $ping_availability, $print_data_to_stdout);
if (read_config_option("log_verbosity") >= POLLER_VERBOSITY_MEDIUM) {
cacti_log("Host[$host_id] No host availability check possible for '" . $item["hostname"] . "'.", $print_data_to_stdout);
}
}else{
if ($ping->ping($ping_availability, read_config_option("ping_method"), read_config_option("ping_timeout"), read_config_option("ping_retries"))) {
$host_down = false;
update_host_status(HOST_UP, $host_id, $hosts, $ping, $ping_availability, $print_data_to_stdout);
}else{
$host_down = true;
update_host_status(HOST_DOWN, $host_id, $hosts, $ping, $ping_availability, $print_data_to_stdout);
}
}
if (!$host_down) {
/* do the reindex check for this host */
$reindex = db_fetch_assoc("select
poller_reindex.data_query_id,
poller_reindex.action,
poller_reindex.op,
poller_reindex.assert_value,
poller_reindex.arg1
from poller_reindex
where poller_reindex.host_id=" . $item["host_id"]);
if ((sizeof($reindex) > 0) && (!$host_down)) {
if (read_config_option("log_verbosity") == POLLER_VERBOSITY_DEBUG) {
cacti_log("Host[$host_id] RECACHE: Processing " . sizeof($reindex) . " items in the auto reindex cache for '" . $item["hostname"] . "'.",$print_data_to_stdout);
}
foreach ($reindex as $index_item) {
$assert_fail = false;
/* do the check */
switch ($index_item["action"]) {
case POLLER_ACTION_SNMP: /* snmp */
$output = cacti_snmp_get($item["hostname"], $item["snmp_community"], $index_item["arg1"], $item["snmp_version"], $item["snmp_username"], $item["snmp_password"], $item["snmp_port"], $item["snmp_timeout"], read_config_option("snmp_retries"), SNMP_CMDPHP);
break;
case POLLER_ACTION_SCRIPT: /* script (popen) */
$output = exec_poll($index_item["arg1"]);
break;
}
/* assert the result with the expected value in the db; recache if the assert fails */
if (($index_item["op"] == "=") && ($index_item["assert_value"] != trim($output))) {
cacti_log("ASSERT: '" . $index_item["assert_value"] . "=" . trim($output) . "' failed. Recaching host '" . $item["hostname"] . "', data query #" . $index_item["data_query_id"], $print_data_to_stdout);
db_execute("replace into poller_command (poller_id, time, action, command) values (0, NOW(), " . POLLER_COMMAND_REINDEX . ", '" . $item["host_id"] . ":" . $index_item["data_query_id"] . "')");
$assert_fail = true;
}else if (($index_item["op"] == ">") && ($index_item["assert_value"] < trim($output))) {
cacti_log("ASSERT: '" . $index_item["assert_value"] . ">" . trim($output) . "' failed. Recaching host '" . $item["hostname"] . "', data query #" . $index_item["data_query_id"], $print_data_to_stdout);
db_execute("replace into poller_command (poller_id, time, action, command) values (0, NOW(), " . POLLER_COMMAND_REINDEX . ", '" . $item["host_id"] . ":" . $index_item["data_query_id"] . "')");
$assert_fail = true;
}else if (($index_item["op"] == "<") && ($index_item["assert_value"] > trim($output))) {
cacti_log("ASSERT: '" . $index_item["assert_value"] . "<" . trim($output) . "' failed. Recaching host '" . $item["hostname"] . "', data query #" . $index_item["data_query_id"], $print_data_to_stdout);
db_execute("replace into poller_command (poller_id, time, action, command) values (0, NOW(), " . POLLER_COMMAND_REINDEX . ", '" . $item["host_id"] . ":" . $index_item["data_query_id"] . "')");
$assert_fail = true;
}
/* update 'poller_reindex' with the correct information if:
* 1) the assert fails
* 2) the OP code is > or < meaning the current value could have changed without causing
* the assert to fail */
if (($assert_fail == true) || ($index_item["op"] == ">") || ($index_item["op"] == "<")) {
db_execute("update poller_reindex set assert_value='$output' where host_id='$host_id' and data_query_id='" . $index_item["data_query_id"] . "' and arg1='" . $index_item["arg1"] . "'");
/* spike kill logic */
if (($assert_fail) && ($index_item["arg1"] == ".1.3.6.1.2.1.1.3.0")) {
/* don't spike kill unless we are certain */
if (!empty($output)) {
$set_spike_kill = true;
if (read_config_option("log_verbosity") == POLLER_VERBOSITY_DEBUG) {
cacti_log("Host[$host_id] NOTICE: Spike Kill in Effect for '" . $item["hostname"] . "'.", $print_data_to_stdout);
}
}
}
}
}
}
}
$new_host = false;
$last_host = $current_host;
}
if (!$host_down) {
switch ($item["action"]) {
case POLLER_ACTION_SNMP: /* snmp */
if (($item["snmp_version"] == 0) || (($item["snmp_community"] == "") && ($item["snmp_version"] != 3))) {
cacti_log("Host[$host_id] DS[$data_source] ERROR: Invalid SNMP Data Source. Please either delete it from the database, or correct it.", $print_data_to_stdout);
$output = "U";
}else {
$output = cacti_snmp_get($item["hostname"], $item["snmp_community"], $item["arg1"], $item["snmp_version"], $item["snmp_username"], $item["snmp_password"], $item["snmp_port"], $item["snmp_timeout"], read_config_option("snmp_retries"), SNMP_CMDPHP);
/* remove any quotes from string */
$output = strip_quotes($output);
if (!validate_result($output)) {
if (strlen($output) > 20) {
$strout = 20;
} else {
$strout = strlen($output);
}
cacti_log("Host[$host_id] DS[$data_source] WARNING: Result from SNMP not valid. Partial Result: " . substr($output, 0, $strout), $print_data_to_stdout);
$output = "U";
}
}
if (read_config_option("log_verbosity") >= POLLER_VERBOSITY_MEDIUM) {
cacti_log("Host[$host_id] DS[$data_source] SNMP: v" . $item["snmp_version"] . ": " . $item["hostname"] . ", dsname: " . $item["rrd_name"] . ", oid: " . $item["arg1"] . ", output: $output",$print_data_to_stdout);
}
break;
case POLLER_ACTION_SCRIPT: /* script (popen) */
$output = trim(exec_poll($item["arg1"]));
/* remove any quotes from string */
$output = strip_quotes($output);
if (!validate_result($output)) {
if (strlen($output) > 20) {
$strout = 20;
} else {
$strout = strlen($output);
}
cacti_log("Host[$host_id] DS[$data_source] WARNING: Result from CMD not valid. Partial Result: " . substr($output, 0, $strout), $print_data_to_stdout);
$output = "U";
}
if (read_config_option("log_verbosity") >= POLLER_VERBOSITY_MEDIUM) {
cacti_log("Host[$host_id] DS[$data_source] CMD: " . $item["arg1"] . ", output: $output",$print_data_to_stdout);
}
break;
case POLLER_ACTION_SCRIPT_PHP: /* script (php script server) */
if ($using_proc_function == true) {
$output = trim(str_replace("\n", "", exec_poll_php($item["arg1"], $using_proc_function, $pipes, $cactiphp)));
/* remove any quotes from string */
$output = strip_quotes($output);
if (!validate_result($output)) {
if (strlen($output) > 20) {
$strout = 20;
} else {
$strout = strlen($output);
}
cacti_log("Host[$host_id] DS[$data_source] WARNING: Result from SERVER not valid. Partial Result: " . substr($output, 0, $strout), $print_data_to_stdout);
$output = "U";
}
if (read_config_option("log_verbosity") >= POLLER_VERBOSITY_MEDIUM) {
cacti_log("Host[$host_id] DS[$data_source] SERVER: " . $item["arg1"] . ", output: $output", $print_data_to_stdout);
}
}else{
if (read_config_option("log_verbosity") >= POLLER_VERBOSITY_MEDIUM) {
cacti_log("Host[$host_id] DS[$data_source] *SKIPPING* SERVER: " . $item["arg1"] . " (PHP < 4.3)", $print_data_to_stdout);
}
$output = "U";
}
break;
} /* End Switch */
if (isset($output)) {
/* insert a U in place of the actual value if the snmp agent restarts */
if (($set_spike_kill) && (!substr_count($output, ":"))) {
db_execute("insert into poller_output (local_data_id,rrd_name,time,output) values (" . $item["local_data_id"] . ",'" . $item["rrd_name"] . "','$host_update_time','" . addslashes("U") . "')");
/* otherwise, just insert the value received from the poller */
}else{
db_execute("insert into poller_output (local_data_id, rrd_name, time, output) values (" . $item["local_data_id"] . ", '" . $item["rrd_name"] . "', '$host_update_time', '" . addslashes($output) . "')");
}
}
} /* Next Cache Item */
} /* End foreach */
if (($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);
}
if (($print_data_to_stdout) || (read_config_option("log_verbosity") >= POLLER_VERBOSITY_MEDIUM)) {
/* take time and log performance data */
list($micro,$seconds) = split(" ", microtime());
$end = $seconds + $micro;
cacti_log(sprintf("Time: %01.4f s, " .
"Theads: N/A, " .
"Hosts: %s",
round($end-$start,4),
$host_count),$print_data_to_stdout);
}
}else{
cacti_log("ERROR: Either there are no items in the cache or polling is disabled",$print_data_to_stdout);
}
/* Let the poller server know about cmd.php being finished */
db_execute("insert into poller_time (poller_id, start_time, end_time) values (0, NOW(), NOW())");
?>
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