initial commit; version 22.5.12042
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213
html/includes/graphs/graph.inc.php
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213
html/includes/graphs/graph.inc.php
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<?php
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/**
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* Observium
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*
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* This file is part of Observium.
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*
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* @package observium
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* @subpackage graphs
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* @copyright (C) 2006-2013 Adam Armstrong, (C) 2013-2021 Observium Limited
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*
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*/
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#ob_clean();
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// Init & clean
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//print_vars($index);
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unset($index); // Clean accidentally global vars
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$total_start = utime();
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// Init global var for information about generated graph
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$graph_return = [
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'status' => FALSE, // --> $GLOBALS['rrd_status']
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'command' => '', // --> $GLOBALS['exec_status']['command'] added in rrdtool_graph()
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'output' => '', // --> $GLOBALS['exec_status']['stdout'] added in rrdtool_graph()
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'runtime' => 0, // --> $GLOBALS['exec_status']['runtime'] added in rrdtool_graph()
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'total' => 0, // total runtime for graph script
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'rrds' => [], // list of used rrd files added in get_rrd_path()
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'filename' => '', // Generated image filename
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'descr' => '', // graph description if exist
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'valid_options' => [], // hrm, used somewhere
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];
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preg_match('/^(?P<type>[a-z0-9A-Z-]+)_(?P<subtype>[a-z0-9A-Z-_]+)/', $vars['type'], $graphtype);
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if (isset($vars['format']) && array_key_exists($vars['format'], $config['graph_formats'])) {
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$extension = $config['graph_formats'][$vars['format']]['extension'];
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$mimetype = $config['graph_formats'][$vars['format']]['mimetype'];
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$img_format = strtoupper($vars['format']);
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} else {
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$extension = 'png';
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$mimetype = 'image/png';
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}
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$graphfile = $config['temp_dir'] . "/" . strgen() . "." . $extension;
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if (OBS_DEBUG) { print_vars($graphtype); }
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if (isset($graphtype['type']) && isset($graphtype['subtype'])) {
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$type = $graphtype['type'];
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$subtype = $graphtype['subtype'];
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} else {
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graph_error("Invalid graph type format.");
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exit;
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}
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// Get device array
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if (is_intnum($vars['device'])) {
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$device = device_by_id_cache($vars['device']);
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} elseif (!safe_empty($vars['device'])) {
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$device = device_by_name($vars['device']);
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} elseif ($type === 'device' && is_intnum($vars['id'])) {
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$device = device_by_id_cache($vars['id']);
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}
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// $from, $to - unixtime (or rrdgraph time interval, i.e. '-1d', '-6w')
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// $timestamp_from, $timestamp_to - timestamps formatted as 'Y-m-d H:i:s'
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if (isset($vars['timestamp_from']) && preg_match(OBS_PATTERN_TIMESTAMP, $vars['timestamp_from'])) {
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$vars['from'] = strtotime($vars['timestamp_from']);
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}
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if (isset($vars['timestamp_to']) && preg_match(OBS_PATTERN_TIMESTAMP, $vars['timestamp_to'])) {
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$vars['to'] = strtotime($vars['timestamp_to']);
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}
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// Validate rrdtool compatible time string and set to now/day if it's not valid
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if (preg_match(OBS_PATTERN_RRDTIME, $vars['to'])) { $to = $vars['to']; }// else { $to = $config['time']['now']; }
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if (preg_match(OBS_PATTERN_RRDTIME, $vars['from'])) { $from = $vars['from']; }// else { $from = $config['time']['day']; }
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if (isset($vars['period']) && is_numeric($vars['period'])) {
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$to = time();
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$from = time() - $vars['period'];
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$period = $vars['period'];
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} elseif(preg_match('/[\-]*\d+[s|w|m|d|y|h]/', $vars['from'])) {
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// It seems we have AT-style/timespec. Just pass it through (some features will break because we can't calculate period)
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$from = $vars['from'];
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if(preg_match('/[\-]*\d+[s|w|m|d|y|h]/', $vars['to'])) { $to = $vars['to']; } else { $to = 'NOW'; }
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} else {
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$from = (isset($vars['from'])) ? $vars['from'] : time() - 86400;
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$to = (isset($vars['to'])) ? $vars['to'] : time();
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if ($from < 0) { $from = $to + $from; }
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$period = $to - $from;
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}
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// Set prev_from & prev_to if we have a period
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if(isset($period)) {
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$prev_from = $from - $period;
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$prev_to = $from;
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}
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$graph_include = FALSE;
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$definition_include = FALSE;
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//print_message("Graph type: $type, subtype: $subtype");
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if (is_file($config['html_dir'] . "/includes/graphs/$type/$subtype.inc.php"))
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{
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$graph_include = $config['html_dir'] . "/includes/graphs/$type/$subtype.inc.php";
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}
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elseif (is_array($config['graph_types'][$type][$subtype]['ds']))
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{
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// Init tags array
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$tags = [];
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// Additional include with define some graph variables like $unit_text, $graph_title
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// Currently only for indexed definitions
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if ($config['graph_types'][$type][$subtype]['index'] &&
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is_file($config['html_dir'] . "/includes/graphs/$type/definition.inc.php"))
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{
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$definition_include = $config['html_dir'] . "/includes/graphs/$type/definition.inc.php";
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}
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$graph_include = $config['html_dir'] . "/includes/graphs/generic_definition.inc.php";
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}
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elseif (is_file($config['html_dir'] . "/includes/graphs/$type/graph.inc.php"))
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{
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$graph_include = $config['html_dir'] . "/includes/graphs/$type/graph.inc.php";
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}
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if ($graph_include)
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{
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include($config['html_dir'] . "/includes/graphs/$type/auth.inc.php");
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if (isset($auth) && $auth)
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{
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if ($definition_include)
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{
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include_once($definition_include);
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}
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include($graph_include);
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}
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} elseif(!isset($vars['command_only'])) {
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graph_error('no '. $type.'_'.$subtype.''); // Graph Template Missing
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}
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if ($error_msg) {
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// We have an error :(
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graph_error($graph_error);
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} elseif (!$auth) {
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// We are unauthenticated :(
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if ($width < 200) {
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graph_error("No Auth");
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} else {
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graph_error("No Authorization");
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}
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} else {
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#$rrd_options .= " HRULE:0#999999";
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if ($no_file) {
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if ($width < 200) {
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graph_error("No RRD");
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} else {
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graph_error("Missing RRD Datafile");
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}
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} elseif (isset($vars['command_only']) && $vars['command_only'] == TRUE) {
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$return = rrdtool_graph($graphfile, $rrd_options);
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//print_vars($GLOBALS['exec_status']);
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unlink($graphfile);
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if (isset($config['graph_types'][$type][$subtype]['long']) && empty($graph_return['descr']))
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{
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$graph_return['descr'] = $config['graph_types'][$type][$subtype]['long'];
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}
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} else {
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if ($rrd_options) {
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rrdtool_graph($graphfile, $rrd_options);
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//print_debug($rrd_cmd);
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if (is_file($graphfile)) {
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if ($vars['image_data_uri'] == TRUE) {
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$image_data_uri = data_uri($graphfile, $mimetype);
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} elseif (!OBS_DEBUG) {
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$fd = fopen($graphfile, 'rb');
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header('Content-type: '.$mimetype);
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header('Content-Disposition: inline; filename="'.basename($graphfile).'"');
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header('Content-Length: ' . filesize($graphfile));
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fpassthru($fd);
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fclose($fd);
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} else {
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external_exec('/bin/ls -l '.$graphfile);
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echo('<img src="'.data_uri($graphfile, $mimetype).'" alt="graph" />');
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}
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unlink($graphfile);
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} else {
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if ($width < 200) {
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graph_error("Draw Error");
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} else {
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graph_error("Error Drawing Graph");
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}
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}
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} else {
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if ($width < 200) {
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graph_error("Def Error");
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} else {
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graph_error("Graph Definition Error");
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}
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}
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}
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}
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// Total runtime and clean graph file
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$graph_return['total'] = utime() - $total_start;
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if (strlen($graph_return['filename']) && is_file($graph_return['filename'])) {
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unlink($graph_return['filename']);
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}
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// EOF
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