118 lines
4.2 KiB
PHP
118 lines
4.2 KiB
PHP
<?php
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// Pandora FMS - http://pandorafms.com
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// ==================================================
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// Copyright (c) 2005-2010 Artica Soluciones Tecnologicas
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// Please see http://pandorafms.org for full contribution list
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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 for version 2.
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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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// Load global vars
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global $config;
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check_login ();
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if (! check_acl ($config['id_user'], 0, "AR")) {
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db_pandora_audit("ACL Violation",
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"Trying to access node graph builder");
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include ("general/noaccess.php");
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exit;
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}
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require_once ('include/functions_networkmap.php');
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// Set filter
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$filter = networkmap_get_filter ($layout);
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// Generate dot file
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$graph = networkmap_generate_dot_groups (__('Pandora FMS'), $group,
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$simple, $font_size, $layout, $nooverlap, $zoom, $ranksep, $center,
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$regen, $pure, $modwithalerts, $module_group, $hidepolicymodules,
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$depth, $id_networkmap, $dont_show_subgroups, $text_filter);
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if ($graph === false) {
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ui_print_error_message (__('Map could not be generated'));
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echo '<div class="nf">' . __('No agents found') . '</div>';
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return;
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}
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// Generate image and map
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// If image was generated just a few minutes ago, then don't regenerate
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// (it takes long) unless regen checkbox is set
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$filename_map = io_safe_output($config["attachment_store"]) . "/networkmap_" . $filter;
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$filename_img = io_safe_output($config["attachment_store"]) . "/networkmap_" . $filter . "_" . $font_size;
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$filename_dot = io_safe_output($config["attachment_store"]) . "/networkmap_" . $filter;
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if ($simple) {
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$filename_map .= "_simple";
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$filename_img .= "_simple";
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$filename_dot .= "_simple";
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}
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if ($nooverlap) {
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$filename_map .= "_nooverlap";
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$filename_img .= "_nooverlap";
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$filename_dot .= "_nooverlap";
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}
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$filename_map .= "_" . $id_networkmap . ".map";
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$filename_img .= "_" . $id_networkmap . ".png";
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$filename_dot .= "_" . $id_networkmap . ".dot";
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if ($regen != 1 && file_exists ($filename_img) &&
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filemtime ($filename_img) > get_system_time () - SECONDS_5MINUTES) {
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$result = true;
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}
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else {
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$fh = @fopen ($filename_dot, 'w');
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if ($fh === false) {
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$result = false;
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}
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else {
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fwrite ($fh, $graph);
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$graphviz_path = (!empty($config['graphviz_bin_dir'])) ?
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io_safe_output($config['graphviz_bin_dir'] . "/")
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:
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"";
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$cmd = escapeshellarg($graphviz_path.$filter) . " -Tcmapx " . escapeshellarg("-o$filename_map") . " -Tpng ". escapeshellarg("-o$filename_img") . " " . escapeshellarg($filename_dot);
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$result = system ($cmd);
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fclose ($fh);
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unlink ($filename_dot);
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}
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}
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if ($result !== false) {
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if (! file_exists ($filename_map)) {
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ui_print_error_message (__('Map could not be generated'));
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echo $result;
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echo "<div class='warn'>Apparently something went wrong reading the output.</div>";
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echo "<br />Is ".$config["attachment_store"]." readable by the webserver process?";
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echo "<br /><br /> Is ".$filter." (usually part of GraphViz) and echo installed and able to be executed by the webserver process?";
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return;
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}
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echo "<div style='text-align:center'>";
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$image_url = str_replace(realpath(io_safe_output($config['homedir'])), "", realpath($filename_img));
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html_print_image ($image_url, false, array ("alt" => __('Network map'), "usemap" => "#networkmap"));
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echo "</div>";
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require ($filename_map);
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}
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else {
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ui_print_error_message (__('Map could not be generated'));
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echo $result;
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echo "<div class='warn'>Apparently something went wrong executing the command or writing the output.</div>";
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echo "<br />Is ".$filter." (usually part of GraphViz) and echo installed and able to be executed by the webserver process?";
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echo "<br /><br /> Is your webserver restricted from executing command line tools through the <code>system()</code> call (PHP Safe Mode or SELinux)";
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echo "<br /><br /> Is ".$config["attachment_store"]." writeable by the webserver process? To change this do the following (POSIX-based systems): chown <apache user> ".$config["attachment_store"];
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return;
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}
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?>
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