mirror of
https://github.com/librenms/librenms.git
synced 2024-10-07 16:52:45 +00:00
Tony Murray
5c76890373
* More secure external graph access Add @signedGraphTag() and @signedGraphUrl() blade directives Takes either an array of graph variables or a url to a graph Uses a signed url that is accessible without user login, embeds signature in url to authenticate access See Laravel Signed Url for more details. Adds Laravel route to graphs (does not change links to use it yet) @graphImage requires the other PR Also APP_URL is required in .env * missing files from rebase * Fix url parsing with a get string * allow width and height to be omitted * Documentation * Add to, otherwise it will always be now * Doc note for to and from relative security * fix vars.inc.php (Laravel has a dummy url here)
121 lines
3.6 KiB
PHP
121 lines
3.6 KiB
PHP
<?php
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use LibreNMS\Config;
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global $debug;
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[$type, $subtype] = extract_graph_type($vars['type']);
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if (isset($vars['device'])) {
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$device = is_numeric($vars['device'])
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? device_by_id_cache($vars['device'])
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: device_by_name($vars['device']);
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}
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// FIXME -- remove these
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$width = $vars['width'] ?? 400;
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$height = $vars['height'] ?? round($width / 3);
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$title = $vars['title'] ?? '';
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$vertical = $vars['vertical'] ?? '';
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$legend = $vars['legend'] ?? false;
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$output = (! empty($vars['output']) ? $vars['output'] : 'default');
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$from = empty($vars['from']) ? Config::get('time.day') : parse_at_time($vars['from']);
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$to = empty($vars['to']) ? Config::get('time.now') : parse_at_time($vars['to']);
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$period = ($to - $from);
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$prev_from = ($from - $period);
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$graph_image_type = $vars['graph_type'] ?? Config::get('webui.graph_type');
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$rrd_options = '';
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require Config::get('install_dir') . "/includes/html/graphs/$type/auth.inc.php";
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//set default graph title
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$graph_title = format_hostname($device);
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if ($auth && is_customoid_graph($type, $subtype)) {
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$unit = $vars['unit'];
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include Config::get('install_dir') . '/includes/html/graphs/customoid/customoid.inc.php';
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} elseif ($auth && is_file(Config::get('install_dir') . "/includes/html/graphs/$type/$subtype.inc.php")) {
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include Config::get('install_dir') . "/includes/html/graphs/$type/$subtype.inc.php";
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} else {
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graph_error("$type*$subtype ");
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// Graph Template Missing");
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}
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if (! empty($error_msg)) {
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// We have an error :(
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graph_error($error_msg);
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return;
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}
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if ($auth === null) {
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// We are unauthenticated :(
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graph_error($width < 200 ? 'No Auth' : 'No Authorization');
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return;
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}
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if ($graph_image_type === 'svg') {
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$rrd_options .= ' --imgformat=SVG';
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if ($width < 350) {
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$rrd_options .= ' -m 0.75 -R light';
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}
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}
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// command output requested
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if (! empty($command_only)) {
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echo "<div class='infobox'>";
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echo "<p style='font-size: 16px; font-weight: bold;'>RRDTool Command</p>";
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echo "<pre class='rrd-pre'>";
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echo escapeshellcmd('rrdtool ' . Rrd::buildCommand('graph', Config::get('temp_dir') . '/' . strgen(), $rrd_options));
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echo '</pre>';
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try {
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Rrd::graph($rrd_options);
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} catch (\LibreNMS\Exceptions\RrdGraphException $e) {
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echo "<p style='font-size: 16px; font-weight: bold;'>RRDTool Output</p>";
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echo "<pre class='rrd-pre'>";
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echo $e->getMessage();
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echo '</pre>';
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}
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echo '</div>';
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return;
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}
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// graph sent file not found flag
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if (! empty($no_file)) {
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graph_error($width < 200 ? 'No Data' : 'No Data file ' . $no_file);
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return;
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}
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if (empty($rrd_options)) {
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graph_error($width < 200 ? 'Def Error' : 'Graph Definition Error');
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return;
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}
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// Generating the graph!
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try {
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$image_data = Rrd::graph($rrd_options);
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// output the graph
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if (\LibreNMS\Util\Debug::isEnabled()) {
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echo '<img src="data:' . get_image_type($graph_image_type) . ';base64,' . base64_encode($image_data) . '" alt="graph" />';
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} else {
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header('Content-type: ' . get_image_type(Config::get('webui.graph_type')));
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echo $output === 'base64' ? base64_encode($image_data) : $image_data;
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}
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} catch (\LibreNMS\Exceptions\RrdGraphException $e) {
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if (\LibreNMS\Util\Debug::isEnabled()) {
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throw $e;
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}
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if (isset($rrd_filename) && ! Rrd::checkRrdExists($rrd_filename)) {
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graph_error($width < 200 ? 'No Data' : 'No Data file ' . basename($rrd_filename));
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} else {
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graph_error($width < 200 ? 'Draw Error' : 'Error Drawing Graph: ' . $e->getMessage());
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}
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}
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