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282 lines
9.3 KiB
PHP
282 lines
9.3 KiB
PHP
<?php
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/*
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+-------------------------------------------------------------------------+
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| Copyright (C) 2004-2016 The Cacti Group |
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| This program is free software; you can redistribute it and/or |
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| modify it under the terms of the GNU General Public License |
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| as published by the Free Software Foundation; either version 2 |
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| of the License, or (at your option) any later version. |
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| This program is distributed in the hope that it will be useful, |
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| but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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| GNU General Public License for more details. |
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+-------------------------------------------------------------------------+
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| Cacti: The Complete RRDTool-based Graphing Solution |
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+-------------------------------------------------------------------------+
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| This code is designed, written, and maintained by the Cacti Group. See |
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| about.php and/or the AUTHORS file for specific developer information. |
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+-------------------------------------------------------------------------+
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| http://www.cacti.net/ |
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+-------------------------------------------------------------------------+
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*/
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/* we are not talking to the browser */
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$no_http_headers = true;
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/* do NOT run this script through a web browser */
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if (!isset($_SERVER["argv"][0]) || isset($_SERVER['REQUEST_METHOD']) || isset($_SERVER['REMOTE_ADDR'])) {
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die("<br><strong>This script is only meant to run at the command line.</strong>");
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}
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/* start initialization section */
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include('./include/global.php');
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include_once($config["base_path"] . "/lib/poller.php");
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include_once($config["base_path"] . "/lib/data_query.php");
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include_once($config["base_path"] . "/lib/graph_export.php");
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include_once($config["base_path"] . "/lib/rrd.php");
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/* initialize some variables */
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$force = FALSE;
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$debug = FALSE;
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$graph_id = FALSE;
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$interval = FALSE;
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$poller_id = '';
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/* process calling arguments */
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$parms = $_SERVER["argv"];
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array_shift($parms);
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if (sizeof($parms)) {
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foreach($parms as $parameter) {
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@list($arg, $value) = @explode("=", $parameter);
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switch ($arg) {
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case "-d":
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case "--debug":
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$debug = TRUE;
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break;
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case "--force":
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$force = TRUE;
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break;
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case "--graph":
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$graph_id = (int)$value;
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break;
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case "--interval":
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$interval = (int)$value;
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break;
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case "--poller_id":
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$poller_id = $value;
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break;
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case "--version":
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case "-V":
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case "-H":
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case "--help":
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display_help();
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exit(0);
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default:
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echo "ERROR: Invalid Argument: ($arg)\n\n";
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display_help();
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exit(1);
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}
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}
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}
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if ($graph_id === FALSE || $graph_id < 0) {
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echo "ERROR: No --graph=ID specified\n\n";
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display_help();
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exit(1);
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}
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if ($interval === FALSE || $interval < 0) {
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echo "ERROR: No --interval=SEC specified\n\n";
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display_help();
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exit(1);
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}
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/* record the start time */
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$poller_start = microtime(true);
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/* get number of polling items from the database */
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$poller_interval = 1;
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/* retreive the last time the poller ran */
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$poller_lastrun = read_config_option('poller_lastrun');
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/* get the current cron interval from the database */
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$cron_interval = read_config_option("cron_interval");
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if ($cron_interval != 60) {
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$cron_interval = 300;
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}
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/* assume a scheduled task of either 60 or 300 seconds */
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define("MAX_POLLER_RUNTIME", 298);
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/* let PHP only run 1 second longer than the max runtime, plus the poller needs lot's of memory */
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ini_set("max_execution_time", MAX_POLLER_RUNTIME + 1);
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/* initialize file creation flags */
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$change_files = false;
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/* obtain some defaults from the database */
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$max_threads = read_config_option("max_threads");
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/* Determine Command Name */
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$command_string = read_config_option("path_php_binary");
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$extra_args = "-q " . $config["base_path"] . "/cmd_realtime.php $poller_id $graph_id $interval";
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$method = "cmd_rt.php";
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/* Determine if Realtime will work or not */
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$cache_dir = read_config_option("realtime_cache_path");
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if (!is_dir($cache_dir)) {
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cacti_log("FATAL: Realtime Cache Directory '$cache_dir' Does Not Exist!");
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return -1;
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}elseif (!is_writable($cache_dir)) {
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cacti_log("FATAL: Realtime Cache Directory '$cache_dir' is Not Writable!");
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return -2;
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}
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shell_exec("$command_string $extra_args");
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usleep(100000);
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/* open a pipe to rrdtool for writing */
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$rrdtool_pipe = rrd_init();
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/* process poller output */
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process_poller_output_rt($rrdtool_pipe, $poller_id, $interval);
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/* close rrd */
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rrd_close($rrdtool_pipe);
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/* close db */
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db_close();
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function display_help() {
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echo "Cacti Poller Version " . db_fetch_cell("SELECT cacti FROM version") . ", Copyright 2007-2010 - The Cacti Group\n\n";
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echo "A simple command line utility to run the Cacti Poller.\n\n";
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echo "usage: poller_rt.php --graph=ID [--force] [--debug|-d]\n\n";
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echo "Options:\n";
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echo " --graph=ID Specify the graph id to convert (realtime)\n";
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echo " --interval=SEC Specify the graph interval (realtime)\n";
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echo " --force Override poller overrun detection and force a poller run\n";
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echo " --debug|-d Output debug information. Similar to cacti's DEBUG logging level.\n\n";
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}
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/* process_poller_output REAL TIME MODIFIED */
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function process_poller_output_rt($rrdtool_pipe, $poller_id, $interval) {
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global $config;
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include_once($config["library_path"] . "/rrd.php");
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/* let's count the number of rrd files we processed */
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$rrds_processed = 0;
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/* create/update the rrd files */
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$results = db_fetch_assoc("SELECT
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port.output,
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port.time,
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port.local_data_id,
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poller_item.rrd_path,
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poller_item.rrd_name,
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poller_item.rrd_num
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FROM (poller_output_realtime AS port,poller_item)
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WHERE (port.local_data_id=poller_item.local_data_id
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AND port.rrd_name=poller_item.rrd_name)
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AND port.poller_id='$poller_id'");
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if (sizeof($results) > 0) {
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/* create an array keyed off of each .rrd file */
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foreach ($results as $item) {
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$rt_graph_path = read_config_option("realtime_cache_path") . "/user_" . $poller_id . "_" . $item["local_data_id"] . ".rrd";
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$data_source_path = get_data_source_path($item['local_data_id'], true);
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/* create rt rrd */
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if (!file_exists($rt_graph_path)) {
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/* get the syntax */
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$command = @rrdtool_function_create($item['local_data_id'], true);
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/* change permissions so that the poller can clear */
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@chmod($rt_graph_path, 0644);
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/* replace path */
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$command = str_replace($data_source_path, $rt_graph_path, $command);
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/* replace step */
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$command = preg_replace('/--step\s(\d+)/', '--step ' . $interval, $command);
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/* WIN32: before sending this command off to rrdtool, get rid
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of all of the '\' characters. Unix does not care; win32 does.
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Also make sure to replace all of the fancy \'s at the end of the line,
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but make sure not to get rid of the "\n"'s that are supposed to be
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in there (text format) */
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$command = str_replace("\\\n", " ", $command);
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/* create the rrdfile */
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shell_exec($command);
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}else{
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/* change permissions so that the poller can clear */
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@chmod($rt_graph_path, 0644);
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}
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/* now, let's update the path to keep the RRD's updated */
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$item["rrd_path"] = $rt_graph_path;
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/* cleanup the value */
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$value = trim($item["output"]);
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$unix_time = strtotime($item["time"]);
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$rrd_update_array{$item["rrd_path"]}["local_data_id"] = $item["local_data_id"];
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/* single one value output */
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if ((is_numeric($value)) || ($value == "U")) {
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$rrd_update_array{$item["rrd_path"]}["times"][$unix_time]{$item["rrd_name"]} = $value;
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/* multiple value output */
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}else{
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$values = explode(" ", $value);
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$rrd_field_names = array_rekey(db_fetch_assoc("SELECT
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data_template_rrd.data_source_name,
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data_input_fields.data_name
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FROM (data_template_rrd,data_input_fields)
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WHERE data_template_rrd.data_input_field_id=data_input_fields.id
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AND data_template_rrd.local_data_id=" . $item["local_data_id"]), "data_name", "data_source_name");
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for ($i=0; $i<count($values); $i++) {
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if (preg_match("/^([a-zA-Z0-9_\.-]+):([eE0-9\+\.-]+)$/", $values[$i], $matches)) {
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if (isset($rrd_field_names{$matches[1]})) {
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$rrd_update_array{$item["rrd_path"]}["times"][$unix_time]{$rrd_field_names{$matches[1]}} = $matches[2];
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}
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}
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}
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}
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/* fallback values */
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if ((!isset($rrd_update_array{$item["rrd_path"]}["times"][$unix_time])) && ($item["rrd_name"] != "")) {
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$rrd_update_array{$item["rrd_path"]}["times"][$unix_time]{$item["rrd_name"]} = "U";
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}else if ((!isset($rrd_update_array{$item["rrd_path"]}["times"][$unix_time])) && ($item["rrd_name"] == "")) {
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unset($rrd_update_array{$item["rrd_path"]});
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}
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}
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/* make sure each .rrd file has complete data */
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reset($results);
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foreach ($results as $item) {
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db_execute("DELETE FROM poller_output_realtime
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WHERE local_data_id='" . $item["local_data_id"] . "'
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AND rrd_name='" . $item["rrd_name"] . "'
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AND time='" . $item["time"] . "'
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AND poller_id='$poller_id'");
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}
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$rrds_processed = rrdtool_function_update($rrd_update_array, $rrdtool_pipe);
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}
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return $rrds_processed;
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}
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?>
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