mirror of
https://github.com/Cacti/cacti.git
synced 2026-10-30 00:26:50 +09:00
359 lines
11 KiB
PHP
359 lines
11 KiB
PHP
<?php
|
|
/*
|
|
+-------------------------------------------------------------------------+
|
|
| Copyright (C) 2004-2017 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/ |
|
|
+-------------------------------------------------------------------------+
|
|
*/
|
|
|
|
/* 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>');
|
|
}
|
|
|
|
$no_http_headers = true;
|
|
|
|
declare(ticks = 1);
|
|
|
|
/* need to capture signals from users */
|
|
function sig_handler($signo) {
|
|
global $include_file, $function, $parameters;
|
|
|
|
switch ($signo) {
|
|
case SIGTERM:
|
|
case SIGINT:
|
|
case SIGABRT:
|
|
case SIGQUIT:
|
|
case SIGSEGV:
|
|
cacti_log("WARNING: Script Server terminated with signal '$signo' in file:'" . basename($include_file) . "', function:'$function', params:'$parameters'", FALSE, 'PHPSVR');
|
|
db_close();
|
|
|
|
exit;
|
|
break;
|
|
default:
|
|
cacti_log("WARNING: Script Server received signal '$signo' in file:'$include_file', function:'$function', params:'$parameters'", FALSE, 'PHPSVR');
|
|
|
|
break;
|
|
}
|
|
}
|
|
|
|
/* used for includes */
|
|
/* install signal handlers for UNIX only */
|
|
if (function_exists('pcntl_signal')) {
|
|
pcntl_signal(SIGTERM, 'sig_handler');
|
|
pcntl_signal(SIGINT, 'sig_handler');
|
|
pcntl_signal(SIGABRT, 'sig_handler');
|
|
pcntl_signal(SIGQUIT, 'sig_handler');
|
|
pcntl_signal(SIGSEGV, 'sig_handler');
|
|
}
|
|
|
|
error_reporting(0);
|
|
include_once(dirname(__FILE__) . '/include/global.php');
|
|
|
|
/* define STDOUT/STDIN file descriptors if not running under CLI */
|
|
if (php_sapi_name() != 'cli') {
|
|
define('STDIN', fopen('php://stdin', 'r'));
|
|
define('STDOUT', fopen('php://stdout', 'w'));
|
|
}
|
|
|
|
/* signal for realtime */
|
|
global $environ, $poller_id;
|
|
|
|
/* record the script start time */
|
|
$start = microtime(true);
|
|
|
|
/* some debugging */
|
|
$pid = getmypid();
|
|
$ctr = 0;
|
|
|
|
/* if multiple polling intervals are defined, compensate for them */
|
|
$polling_interval = read_config_option('poller_interval');
|
|
|
|
if (!empty($polling_interval)) {
|
|
$num_polling_items = db_fetch_cell_prepared('SELECT count(*) FROM poller_item WHERE rrd_next_step <= 0 AND poller_id = ?', array($config['poller_id']), 'count(*)');
|
|
define('MAX_POLLER_RUNTIME', $polling_interval);
|
|
} else {
|
|
$num_polling_items = db_fetch_cell_prepared('SELECT count(*) FROM poller_item WHERE poller_id = ?', array($config['poller_id']), 'count(*)');
|
|
define('MAX_POLLER_RUNTIME', 300);
|
|
}
|
|
|
|
/* Let PHP only run 1 second longer than the max runtime */
|
|
ini_set('max_execution_time', MAX_POLLER_RUNTIME + 1);
|
|
|
|
/* Record the calling environment */
|
|
if ($_SERVER['argc'] >= 2) {
|
|
if ($_SERVER['argv'][1] == 'spine')
|
|
$environ = 'spine';
|
|
else
|
|
if (($_SERVER['argv'][1] == 'cmd.php') || ($_SERVER['argv'][1] == 'cmd'))
|
|
$environ = 'cmd';
|
|
elseif ($_SERVER['argv'][1] == 'realtime')
|
|
$environ = 'realtime';
|
|
else
|
|
$environ = 'other';
|
|
|
|
if ($_SERVER['argc'] == 3)
|
|
$poller_id = $_SERVER['argv'][2];
|
|
else
|
|
$poller_id = 1;
|
|
} else {
|
|
$environ = 'cmd';
|
|
$poller_id = 1;
|
|
}
|
|
|
|
cacti_log('DEBUG: SERVER: ' . $environ, false, 'PHPSVR', POLLER_VERBOSITY_DEBUG);
|
|
|
|
if ($config['cacti_server_os'] == 'win32') {
|
|
cacti_log('DEBUG: GETCWD: ' . strtolower(strtr(getcwd(),"\\",'/')), false, 'PHPSVR', POLLER_VERBOSITY_DEBUG);
|
|
cacti_log('DEBUG: DIRNAM: ' . strtolower(strtr(dirname(__FILE__),"\\",'/')), false, 'PHPSVR', POLLER_VERBOSITY_DEBUG);
|
|
} else {
|
|
cacti_log('DEBUG: GETCWD: ' . strtr(getcwd(),"\\",'/'), false, 'PHPSVR', POLLER_VERBOSITY_DEBUG);
|
|
cacti_log('DEBUG: DIRNAM: ' . strtr(dirname(__FILE__),"\\",'/'), false, 'PHPSVR', POLLER_VERBOSITY_DEBUG);
|
|
}
|
|
|
|
cacti_log('DEBUG: FILENM: ' . __FILE__, false, 'PHPSVR', POLLER_VERBOSITY_DEBUG);
|
|
|
|
/* send status back to the server */
|
|
cacti_log('PHP Script Server has Started - Parent is ' . $environ, false, 'PHPSVR', POLLER_VERBOSITY_HIGH);
|
|
|
|
fputs(STDOUT, 'PHP Script Server has Started - Parent is ' . $environ . "\n");
|
|
fflush(STDOUT);
|
|
|
|
/* process waits for input and then calls functions as required */
|
|
while (1) {
|
|
$result = '';
|
|
|
|
$input_string = fgets(STDIN, 1024);
|
|
$function = '';
|
|
$parameters = '';
|
|
$parameter_array = array();
|
|
|
|
if ($input_string !== FALSE) {
|
|
$input_string = trim($input_string);
|
|
|
|
if (substr($input_string,0,4) == 'quit') {
|
|
fputs(STDOUT, 'PHP Script Server Shutdown request received, exiting\n');
|
|
fflush(STDOUT);
|
|
cacti_log('DEBUG: PHP Script Server Shutdown request received, exiting', false, 'PHPSVR', POLLER_VERBOSITY_DEBUG);
|
|
db_close();
|
|
exit(0);
|
|
}
|
|
|
|
if (strlen($input_string)) {
|
|
/* pull off the parameters */
|
|
$i = 0;
|
|
while ( true ) {
|
|
$pos = strpos($input_string, ' ');
|
|
|
|
if ($pos > 0) {
|
|
switch ($i) {
|
|
case 0:
|
|
/* cut off include file as first part of input string and keep rest for further parsing */
|
|
$include_file = trim(substr($input_string,0,$pos));
|
|
$input_string = trim(strchr($input_string, ' ')) . ' ';
|
|
break;
|
|
case 1:
|
|
/* cut off function as second part of input string and keep rest for further parsing */
|
|
$function = trim(substr($input_string,0,$pos));
|
|
$input_string = trim(strchr($input_string, ' ')) . ' ';
|
|
break;
|
|
case 2:
|
|
/* take the rest as parameter(s) to the function stripped off previously */
|
|
$parameters = trim($input_string);
|
|
break 2;
|
|
}
|
|
} else {
|
|
break;
|
|
}
|
|
|
|
$i++;
|
|
}
|
|
|
|
if (!parseArgs($parameters, $parameter_array)) {
|
|
cacti_log("WARNING: Script Server count not parse '$parameters' for $function", false, 'PHPSVR');
|
|
fputs(STDOUT, "U\n");
|
|
fflush(STDOUT);
|
|
continue;
|
|
}
|
|
|
|
cacti_log("DEBUG: PID[$pid] CTR[$ctr] INC: '". basename($include_file) . "' FUNC: '" .$function . "' PARMS: '" . $parameters . "'", false, 'PHPSVR', POLLER_VERBOSITY_DEBUG);
|
|
|
|
/* validate the existance of the function, and include if applicable */
|
|
if (!function_exists($function)) {
|
|
if (file_exists($include_file)) {
|
|
/* quirk in php on Windows, believe it or not.... */
|
|
/* path must be lower case */
|
|
if ($config['cacti_server_os'] == 'win32') {
|
|
$include_file = strtolower($include_file);
|
|
}
|
|
|
|
/* set this variable so the calling script can determine if it was called
|
|
* by the script server or stand-alone */
|
|
$called_by_script_server = true;
|
|
|
|
/* turn on output buffering to avoid problems with nasty scripts */
|
|
ob_start();
|
|
include_once($include_file);
|
|
ob_end_clean();
|
|
} else {
|
|
cacti_log('WARNING: PHP Script File to be included, does not exist', false, 'PHPSVR');
|
|
}
|
|
}
|
|
|
|
if (function_exists($function)) {
|
|
if ($parameters == '') {
|
|
$result = call_user_func($function);
|
|
} else {
|
|
$result = call_user_func_array($function, $parameter_array);
|
|
}
|
|
|
|
fputs(STDOUT, trim($result) . "\n");
|
|
fflush(STDOUT);
|
|
|
|
cacti_log("DEBUG: PID[$pid] CTR[$ctr] RESPONSE:'$result'", false, 'PHPSVR', POLLER_VERBOSITY_DEBUG);
|
|
|
|
$ctr++;
|
|
} else {
|
|
cacti_log("WARNING: Function does not exist INC: '". basename($include_file) . "' FUNC: '" .$function . "' PARMS: '" . $parameters . "'", false, 'PHPSVR');
|
|
fputs(STDOUT, "U\n");
|
|
fflush(STDOUT);
|
|
}
|
|
}
|
|
} else {
|
|
cacti_log('ERROR: Input Expected, Script Server Terminating', false, 'PHPSVR');
|
|
fputs(STDOUT, "ERROR: Input Expected, Script Server Terminating\n");
|
|
fflush(STDOUT);
|
|
exit (-1);
|
|
}
|
|
|
|
/* end the process if the runtime exceeds MAX_POLLER_RUNTIME */
|
|
if (($start + MAX_POLLER_RUNTIME) < time()) {
|
|
cacti_log('Maximum runtime of ' . MAX_POLLER_RUNTIME . ' seconds exceeded for the Script Server. Exiting.', true, 'PHPSVR');
|
|
exit (-1);
|
|
}
|
|
}
|
|
|
|
function parseArgs($string, &$str_list, $debug = false) {
|
|
$delimiters = array("'",'"');
|
|
$delimited = false;
|
|
$str_list = array();
|
|
|
|
if ($debug) echo "String: '" . $string . "'\n";
|
|
|
|
foreach($delimiters as $delimiter) {
|
|
if (strpos($string, $delimiter) !== false) {
|
|
$delimited = true;
|
|
break;
|
|
}
|
|
}
|
|
|
|
/* process the simple case */
|
|
if (!$delimited) {
|
|
$str_list = explode(' ', $string);
|
|
|
|
if ($debug) echo "Output: '" . implode(",", $str_list) . "'\n";
|
|
|
|
return true;
|
|
}
|
|
|
|
/* Break str down into an array of characters and process */
|
|
$char_array = str_split($string);
|
|
$escaping = false;
|
|
$indelim = false;
|
|
$parse_ok = true;
|
|
$curstr = '';
|
|
foreach($char_array as $char) {
|
|
switch ($char) {
|
|
case '\'':
|
|
case '"':
|
|
if (!$indelim) {
|
|
if (!$escaping) {
|
|
$indelim = true;
|
|
} else {
|
|
$curstr .= $char;
|
|
$escaping = false;
|
|
}
|
|
} elseif (!$escaping) {
|
|
$str_list[] = $curstr;
|
|
$curstr = '';
|
|
$indelim = false;
|
|
} elseif ($escaping) {
|
|
$curstr .= $char;
|
|
$escaping = false;
|
|
}
|
|
|
|
break;
|
|
case '\\':
|
|
if ($escaping) {
|
|
$curstr .= $char;
|
|
$escaping = false;
|
|
} else {
|
|
$escaping = true;
|
|
}
|
|
|
|
break;
|
|
case ' ':
|
|
if ($escaping) {
|
|
$parse_ok = false;
|
|
$msg = 'Parse error attempting to parse string';
|
|
} elseif ($indelim) {
|
|
$curstr .= $char;
|
|
} elseif (strlen($curstr)) {
|
|
$str_list[] = $curstr;
|
|
$curstr = '';
|
|
}
|
|
|
|
break;
|
|
case '`':
|
|
$parse_ok = false;
|
|
$msg = 'Backtic (`) characters not allowed';
|
|
|
|
break;
|
|
default:
|
|
if ($escaping) {
|
|
$parse_ok = false;
|
|
$msg = 'Parse error attempting to parse string';
|
|
} else {
|
|
$curstr .= $char;
|
|
}
|
|
break;
|
|
}
|
|
|
|
if (!$parse_ok) {
|
|
break;
|
|
}
|
|
}
|
|
|
|
/* Add the last str to the string array */
|
|
if ($indelim || $escaping) {
|
|
$parse_ok = false;
|
|
$msg = 'Parse error attempting to parse string';
|
|
}
|
|
|
|
if (!$parse_ok) {
|
|
echo 'ERROR: ' . $msg . " '" . $string . "'\n";
|
|
} elseif (strlen($curstr)) {
|
|
$str_list[] = $curstr;
|
|
}
|
|
|
|
if ($debug) echo "Output: '" . implode(",", $str_list) . "'\n";
|
|
|
|
return $parse_ok;
|
|
}
|