<?php
/*
 +-------------------------------------------------------------------------+
 | Copyright (C) 2004-2016 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/                                                   |
 +-------------------------------------------------------------------------+
*/

function graph_export($force = false) {
	global $debug;

	/* take time to log performance data */
	list($micro,$seconds) = explode(" ", microtime());
	$start = $seconds + $micro;

	if ($debug) {
		export_debug("This is a forced run");
	}

	if (read_config_option("export_timing") != "disabled" || $force) {
		switch (read_config_option("export_timing")) {
			case "classic":
				export_debug("Export Type is Classical");
				if ($force) {
					db_execute("UPDATE settings SET value='1' WHERE name='path_html_export_ctr'");
					$total_graphs_created = config_graph_export();
					config_export_stats($start, $total_graphs_created);
				}elseif (read_config_option("path_html_export_ctr") >= read_config_option("path_html_export_skip")) {
					db_execute("UPDATE settings SET value='1' WHERE name='path_html_export_ctr'");
					$total_graphs_created = config_graph_export();
					config_export_stats($start, $total_graphs_created);
				} elseif (read_config_option("path_html_export_ctr") == "") {
					db_execute("DELETE FROM settings WHERE name='path_html_export_ctr' OR name='path_html_export_skip'");
					db_execute("REPLACE INTO settings (name,value) VALUES ('path_html_export_ctr','1')");
					db_execute("REPLACE INTO settings (name,value) VALUES ('path_html_export_skip','1')");
				} else {
					db_execute("update settings set value='" . (read_config_option("path_html_export_ctr") + 1) . "' where name='path_html_export_ctr'");
				}
				break;
			case "export_hourly":
				export_debug("Export Type is Export Hourly");
				$export_minute = read_config_option('export_hourly');
				$poller_minute = read_config_option('poller_interval') / 60;
				if ($force) {
					$total_graphs_created = config_graph_export();
					config_export_stats($start, $total_graphs_created);
				}elseif (empty($export_minute)) {
					db_execute("REPLACE INTO settings (name,value) VALUES ('export_hourly','0')");
				} elseif (floor((date('i') / $poller_minute)) == floor((read_config_option('export_hourly') / $poller_minute))) {
					$total_graphs_created = config_graph_export();
					config_export_stats($start, $total_graphs_created);
				}
				break;
			case "export_daily":
				export_debug("Export Type is Export Daily");
				if ($force) {
					$total_graphs_created = config_graph_export();
					config_export_stats($start, $total_graphs_created);
				}elseif (strstr(read_config_option('export_daily'), ':')) {
					$export_daily_time = explode(':', read_config_option('export_daily'));
					$poller_minute = read_config_option('poller_interval') / 60;
					if (date('G') == $export_daily_time[0]) {
						if (floor((date('i') / $poller_minute)) == floor(($export_daily_time[1] / $poller_minute))) {
							$total_graphs_created = config_graph_export();
							config_export_stats($start, $total_graphs_created);
						}
					}
				} else {
					db_execute("REPLACE INTO settings (name,value) VALUES ('export_daily','00:00')");
				}
				break;
			default:
				if ($force) {
					$total_graphs_created = config_graph_export();
					config_export_stats($start, $total_graphs_created);
				}else{
					export_log("Export timing not specified. Updated config to disable exporting.");
					db_execute("REPLACE INTO settings (name,value) VALUES ('export_timing','disabled')");
				}
		}
	}
}

function config_graph_export() {
	$total_graphs_created = 0;

	switch (read_config_option("export_type")) {
		case "local":
			export_debug("Export Type is 'local'");
			$total_graphs_created = export();
			break;
		case "sftp_php":
			export_debug("Export Type is 'sftp_php'");
			if (!function_exists("ftp_ssl_connect")) {
				export_fatal("Secure FTP Function does not exist.  Export can not continue.");
			}
		case "ftp_php":
			export_debug("Export Type is 'ftp_php'");
			/* set the temp directory */
			if (strlen(read_config_option("export_temporary_directory")) == 0) {
				$stExportDir = $_ENV["TMP"] . '/cacti-ftp-temp';
			}else{
				$stExportDir = read_config_option("export_temporary_directory") . '/cacti-ftp-temp';
			}

			$total_graphs_created = export_pre_ftp_upload($stExportDir);
			export_log("Using PHP built-in FTP functions.");
			export_ftp_php_execute($stExportDir, read_config_option("export_type"));
			export_post_ftp_upload($stExportDir);
			break;
		case "ftp_ncftpput":
			export_debug("Export Type is 'ftp_ncftpput'");
			if (strstr(PHP_OS, "WIN")) export_fatal("ncftpput only available in unix environment!  Export can not continue.");

			/* set the temp directory */
			if (strlen(read_config_option("export_temporary_directory")) == 0) {
				$stExportDir = $_ENV["TMP"] . '/cacti-ftp-temp';
			}else{
				$stExportDir = read_config_option("export_temporary_directory") . '/cacti-ftp-temp';
			}

			$total_graphs_created = export_pre_ftp_upload($stExportDir);
			export_log("Using ncftpput.");
			export_ftp_ncftpput_execute($stExportDir);
			export_post_ftp_upload($stExportDir);
			break;
		case "disabled":
			export_debug("Export Type is 'disabled'");
			break;
		default:
			export_fatal("Export method not specified. Exporting can not continue.  Please set method properly in Cacti configuration.");
	}

	return $total_graphs_created;
}

function config_export_stats($start, $total_graphs_created) {
	/* take time to log performance data */
	list($micro,$seconds) = explode(" ", microtime());
	$end = $seconds + $micro;

	$export_stats = sprintf(
		"ExportDate:%s ExportDuration:%01.4f TotalGraphsExported:%s",
		date("Y-m-d_G:i:s"), round($end - $start,4), $total_graphs_created);

	cacti_log("STATS: " . $export_stats, true, "EXPORT");

	/* insert poller stats into the settings table */
	db_execute("replace into settings (name,value) values ('stats_export','$export_stats')");
}

function export_fatal($stMessage) {
	cacti_log("FATAL ERROR: " . $stMessage, true, "EXPORT");

	export_debug($stMessage);

	exit;
}

function export_log($stMessage) {
	if (read_config_option("log_verbosity") >= POLLER_VERBOSITY_HIGH) {
		cacti_log($stMessage, true, "EXPORT");
	}

	export_debug($stMessage);
}

function export_debug($message) {
	global $debug;

	if ($debug) {
		print rtrim($message) . "\n";
	}
}

function export_pre_ftp_upload($stExportDir) {
	global $config, $aFtpExport;

	/* export variable as global */
	$config["config_options_array"]["path_html_export"] = $stExportDir;

	/* clean-up after last cacti instance */
	if (is_dir($stExportDir)) {
		del_directory($stExportDir, FALSE);
	}else {
		@mkdir($stExportDir);
	}

	/* go export */
	$total_graphs_created = export();

	/* force reaing of the variable from the database */
	unset($config["config_options_array"]["path_html_export"]);

	$aFtpExport['server'] = read_config_option('export_ftp_host');
	if (empty($aFtpExport['server'])) {
		export_fatal("FTP Hostname is not expected to be blank!");
	}

	$aFtpExport['remotedir'] = read_config_option('path_html_export');
	if (empty($aFtpExport['remotedir'])) {
		export_fatal("FTP Remote export path is not expected to be blank!");
	}

	$aFtpExport['port'] = read_config_option('export_ftp_port');
	$aFtpExport['port'] = empty($aFtpExport['port']) ? '21' : $aFtpExport['port'];

	$aFtpExport['username'] = read_config_option('export_ftp_user');
	$aFtpExport['password'] = read_config_option('export_ftp_password');

	if (empty($aFtpExport['username'])) {
		$aFtpExport['username'] = 'Anonymous';
		$aFtpExport['password'] = '';
		export_log("Using Anonymous transfer method.");
	}

	if (read_config_option('export_ftp_passive') == 'on') {
		$aFtpExport['passive'] = TRUE;
		export_log("Using passive transfer method.");
	}else {
		$aFtpExport['passive'] = FALSE;
		export_log("Using active transfer method.");
	}

	return $total_graphs_created;
}

function export_ftp_php_execute($stExportDir, $stFtpType = "ftp_php") {
	global $aFtpExport;

	/* connect to foreign system */
	switch($stFtpType) {
	case "ftp_php":
		$oFtpConnection = ftp_connect($aFtpExport['server'], $aFtpExport['port']);

		if (!$oFtpConnection) {
			export_fatal("FTP Connection failed! Check hostname and port.  Export can not continue.");
		}else {
			export_log("Conection to remote server was successful.");
		}
		break;
	case "sftp_php":
		$oFtpConnection = ftp_ssl_connect($aFtpExport['server'], $aFtpExport['port']);

		if (!$oFtpConnection) {
			export_fatal("SFTP Connection failed! Check hostname and port.  Export can not continue.");
		}else {
			export_log("Conection to remote server was successful.");
		}
		break;
	}

	/* login to foreign system */
	if (!ftp_login($oFtpConnection, $aFtpExport['username'], $aFtpExport['password'])) {
		ftp_close($oFtpConnection);
		export_fatal("FTP Login failed! Check username and password.  Export can not continue.");
	}else {
		export_log("Remote login was successful.");
	}

	/* set connection type */
	if ($aFtpExport['passive']) {
		ftp_pasv($oFtpConnection, TRUE);
	}else {
		ftp_pasv($oFtpConnection, FALSE);
	}

	/* change directories into the remote upload directory */
	if (!@ftp_chdir($oFtpConnection, $aFtpExport['remotedir'])) {
		ftp_close($oFtpConnection);
		export_fatal("FTP Remote directory '" . $aFtpExport['remotedir'] . "' does not exist!.  Export can not continue.");
	}

	/* sanitize the remote location if the user has asked so */
	if (read_config_option('export_ftp_sanitize') == 'on') {
		export_log("Deleting remote files.");

		/* get rid of the files first */
		$aFtpRemoteFiles = ftp_nlist($oFtpConnection, $aFtpExport['remotedir']);

		if (is_array($aFtpRemoteFiles)) {
			foreach ($aFtpRemoteFiles as $stFile) {
				export_log("Deleting remote file '" . $stFile . "'");
				@ftp_delete($oFtpConnection, $stFile);
			}
		}

		/* if the presentation is tree, you will have some directories too */
		if (read_config_option("export_presentation") == "tree") {
			$aFtpRemoteDirs = ftp_nlist($oFtpConnection, $aFtpExport['remotedir']);

			foreach ($aFtpRemoteDirs as $remote_dir) {
				if (ftp_chdir($oFtpConnection, addslashes($remote_dir))) {
					$aFtpRemoteFiles = ftp_nlist($oFtpConnection, ".");
					if (is_array($aFtpRemoteFiles)) {
						foreach ($aFtpRemoteFiles as $stFile) {
							export_log("Deleting Remote File '" . $stFile . "'");
							ftp_delete($oFtpConnection, $stFile);
						}
					}
					ftp_chdir($oFtpConnection, "..");

					export_log("Removing Remote Directory '" . $remote_dir . "'");
					ftp_rmdir($oFtpConnection, $remote_dir);
				}else{
					ftp_close($oFtpConnection);
					export_fatal("Unable to cd on remote system");
				}
			}
		}

		$aFtpRemoteFiles = ftp_nlist($oFtpConnection, $aFtpExport['remotedir']);
		if (sizeof($aFtpRemoteFiles) > 0) {
			ftp_close($oFtpConnection);
			export_fatal("Problem sanitizing remote ftp location, must exit.");
		}
	}

	/* upload files to remote system */
	export_log("Uploading files to remote location.");
	ftp_chdir($oFtpConnection, $aFtpExport['remotedir']);
	export_ftp_php_uploaddir($stExportDir,$oFtpConnection);

	/* end connection */
	export_log("Closing ftp connection.");
	ftp_close($oFtpConnection);
}

function export_ftp_php_uploaddir($dir,$oFtpConnection) {
	global $aFtpExport;

	export_log("Uploading directory: '$dir' to remote location.");
	if($dh = opendir($dir)) {
		export_log("Uploading files to remote location.");
		while(($file = readdir($dh)) !== false) {
			$filePath = $dir . "/" . $file;
			if($file != "." && $file != ".." && !is_dir($filePath)) {
				if(!ftp_put($oFtpConnection, $file, $filePath, FTP_BINARY)) {
					export_log("Failed to upload '$file'.");
				}
			}

			if (($file != ".") &&
				($file != "..") &&
				(is_dir($filePath))) {

				export_log("Create remote directory: '$file'.");
				ftp_mkdir($oFtpConnection,$file);

				export_log("Change remote directory to: '$file'.");
				ftp_chdir($oFtpConnection,$file);
				export_ftp_php_uploaddir($filePath,$oFtpConnection);

				export_log("Change remote directory: one up.");
				ftp_cdup($oFtpConnection);
			}
		}
		closedir($dh);
	}
}

function export_ftp_ncftpput_execute($stExportDir) {
	global $aFtpExport;

	chdir($stExportDir);

	/* set the initial command structure */
	$stExecute = 'ncftpput -R -V -r 1 -u ' . cacti_escapeshellarg($aFtpExport['username']) . ' -p ' . cacti_escapeshellarg($aFtpExport['password']);

	/* if the user requested passive mode, use it */
	if ($aFtpExport['passive']) {
		$stExecute .= ' -F ';
	}

	/* setup the port, server, remote directory and all files */
	$stExecute .= ' -P ' . cacti_escapeshellarg($aFtpExport['port']) . ' ' . cacti_escapeshellarg($aFtpExport['server']) . ' ' . cacti_escapeshellarg($aFtpExport['remotedir']) . ".";

	/* run the command */
	$iExecuteReturns = 0;
	system($stExecute, $iExecuteReturns);

	$aNcftpputStatusCodes = array (
		'Success.',
		'Could not connect to remote host.',
		'Could not connect to remote host - timed out.',
		'Transfer failed.',
		'Transfer failed - timed out.',
		'Directory change failed.',
		'Directory change failed - timed out.',
		'Malformed URL.',
		'Usage error.',
		'Error in login configuration file.',
		'Library initialization failed.',
		'Session initialization failed.');

	export_log('Ncftpput returned: ' . $aNcftpputStatusCodes[$iExecuteReturns]);
}

function export_post_ftp_upload($stExportDir) {
	/* clean-up after ftp-put */
	if ($dh = opendir($stExportDir)) {
		while (($file = readdir($dh)) !== false) {
			$filePath = $stExportDir . "/" . $file;
			if ($file != "." && $file != ".." && !is_dir($filePath)) {
				export_log("Removing Local File '" . $file . "'");
				unlink($filePath);
			}

			/* if the directory turns out to be a sub-directory, delete it too */
			if ($file != "." && $file != ".." && is_dir($filePath)) {
				export_log("Removing Local Directory '" . $filePath . "'");
				export_post_ftp_upload($filePath);
			}
		}
		closedir($dh);

		/* don't delete the root of the temporary export directory */
		if (read_config_option("export_temporary_directory") != $stExportDir) {
			rmdir($stExportDir);
		}
	}
}

function export() {
	global $config;

	/* count how many graphs are created */
	$total_graphs_created = 0;

	$cacti_root_path = $config["base_path"];
	$cacti_export_path = read_config_option("path_html_export");

	/* if the path is not a directory, don't continue */
	if (!is_dir($cacti_export_path)) {
		export_fatal("Export path '" . $cacti_export_path . "' does not exist!  Export can not continue.");
	}

	/* blank paths are not good */
	if (strlen($cacti_export_path) == 0) {
		export_fatal("Export path is null!  Export can not continue.");
	}

	/* can not be the web root */
	if ((strcasecmp($cacti_root_path, $cacti_export_path) == 0) &&
		(read_config_option("export_type") == "local")) {
		export_fatal("Export path '" . $cacti_export_path . "' is the Cacti web root.  Can not continue.");
	}

	/* can not be a parent of the Cacti web root */
	if (strncasecmp($cacti_root_path, $cacti_export_path, strlen($cacti_export_path))== 0) {
		export_fatal("Export path '" . $cacti_export_path . "' is a parent folder from the Cacti web root.  Can not continue.");
	}

	/* check for bad directories within the cacti path */
	if (strcasecmp($cacti_root_path, $cacti_export_path) < 0) {
		$cacti_system_paths = array(
			"include",
			"lib",
			"install",
			"rra",
			"log",
			"scripts",
			"plugins",
			"images",
			"resource");

		foreach($cacti_system_paths as $cacti_system_path) {
			if (substr_count(strtolower($cacti_export_path), strtolower($cacti_system_path)) > 0) {
				export_fatal("Export path '" . $cacti_export_path . "' is potentially within a Cacti system path '" . $cacti_system_path . "'.  Can not continue.");
			}
		}
	}

	/* don't allow to export to system paths */
	$system_paths = array(
		"/boot",
		"/lib",
		"/usr",
		"/usr/bin",
		"/bin",
		"/sbin",
		"/usr/sbin",
		"/usr/lib",
		"/var/lib",
		"/root",
		"/etc",
		"windows",
		"winnt",
		"program files");

	foreach($system_paths as $system_path) {
		if (substr($system_path, 0, 1) == "/") {
			if ($system_path == substr($cacti_export_path, 0, strlen($system_path))) {
				export_fatal("Export path '" . $cacti_export_path . "' is within a system path '" . $system_path . "'.  Can not continue.");
			}
		}elseif (substr_count(strtolower($cacti_export_path), strtolower($system_path)) > 0) {
			export_fatal("Export path '" . $cacti_export_path . "' is within a system path '" . $system_path . "'.  Can not continue.");
		}
	}

	export_log("Running graph export");

	/* delete all files and directories in the cacti_export_path */
	del_directory($cacti_export_path, false);

	/* test how will the export will be made */
	if (read_config_option('export_presentation') == 'tree') {
		export_log("Running graph export with tree organization");
		$total_graphs_created = tree_export();
	}else {
		export_log("Running graph export with legacy organization");
		$total_graphs_created = classical_export($cacti_root_path, $cacti_export_path);
	}

	return $total_graphs_created;
}

function classical_export($cacti_root_path, $cacti_export_path) {
	global $config;
	include_once($config["base_path"] . "/lib/time.php");

	$total_graphs_created = 0;

	/* copy the css/images on the first time */
	if (file_exists("$cacti_export_path/main.css") == false) {
		copy("$cacti_root_path/include/main.css", "$cacti_export_path/main.css");
		copy("$cacti_root_path/images/tab_cacti.gif", "$cacti_export_path/tab_cacti.gif");
		copy("$cacti_root_path/images/cacti_backdrop.gif", "$cacti_export_path/cacti_backdrop.gif");
		copy("$cacti_root_path/images/transparent_line.gif", "$cacti_export_path/transparent_line.gif");
		copy("$cacti_root_path/images/shadow.gif", "$cacti_export_path/shadow.gif");
	}

	/* create the base directory */
	if (!is_dir("$cacti_export_path/graphs")) {
		if (!mkdir("$cacti_export_path/graphs", 0755, true)) {
			export_fatal("Create directory '$cacti_export_path/graphs' failed.  Can not continue");
		}
	}

	/* determine the number of columns to write */
	$classic_columns = read_config_option("export_num_columns");

	/* if the index file already exists, delete it */
	check_remove($cacti_export_path . "/index.html");

	export_log("Creating File  '" . $cacti_export_path . "/index.html'");

	/* open pointer to the new index file */
	$fp_index = fopen($cacti_export_path . "/index.html", "w");

	/* get a list of all graphs that need exported */
	$exportuser = read_config_option("export_user_id");
	$current_user = db_fetch_row("SELECT * FROM user_auth WHERE id=" . read_config_option("export_user_id"));

	$sql_where = "WHERE " . get_graph_permissions_sql($current_user["policy_graphs"], $current_user["policy_hosts"], $current_user["policy_graph_templates"]);
	$sql_join = "LEFT JOIN host ON (host.id=graph_local.host_id)
		LEFT JOIN graph_templates ON (graph_templates.id=graph_local.graph_template_id)
		LEFT JOIN user_auth_perms ON ((graph_templates_graph.local_graph_id=user_auth_perms.item_id AND user_auth_perms.type=1 AND user_auth_perms.user_id=$exportuser)
		 OR (host.id=user_auth_perms.item_id AND user_auth_perms.type=3 AND user_auth_perms.user_id=$exportuser)
		 OR (graph_templates.id=user_auth_perms.item_id AND user_auth_perms.type=4 AND user_auth_perms.user_id=$exportuser))";

	$sql_base = "FROM (graph_templates_graph,graph_local)
		$sql_join
		$sql_where
		" . (empty($sql_where) ? "WHERE" : "AND") . " graph_templates_graph.local_graph_id > 0
		AND graph_templates_graph.export='on'
		AND graph_templates_graph.local_graph_id=graph_local.id";

	$graphs = db_fetch_assoc("SELECT
		graph_templates_graph.local_graph_id,
		graph_templates_graph.title_cache,
		graph_templates_graph.height,
		graph_templates_graph.width
		$sql_base
		GROUP BY graph_templates_graph.local_graph_id");

	$rras = db_fetch_assoc("SELECT
		rra.id,
		rra.name
		FROM rra
		ORDER BY timespan");

	/* write the html header data to the index file */
	$stats = "Export Date: " . date(date_time_format()) . "<br>";
	$stats.= "Total Graphs: " . sizeof($graphs);
	fwrite($fp_index, HTML_HEADER_CLASSIC);
	fwrite($fp_index, HTML_GRAPH_HEADER_ONE_CLASSIC);
	fwrite($fp_index, $stats);
	fwrite($fp_index, HTML_GRAPH_HEADER_TWO_CLASSIC);

	/* open a pipe to rrdtool for writing */
	$rrdtool_pipe = rrd_init();

	/* for each graph... */
	$i = 0; $k = 0;
	if ((sizeof($graphs) > 0) && (sizeof($rras) > 0)) {
		foreach ($graphs as $graph) {
			check_remove($cacti_export_path . "graphs/thumb_" . $graph["local_graph_id"] . ".png");
			check_remove($cacti_export_path . "graph_" . $graph["local_graph_id"] . ".html");

			/* settings for preview graphs */
			$graph_data_array["graph_height"] = read_config_option("export_default_height");
			$graph_data_array["graph_width"] = read_config_option("export_default_width");
			$graph_data_array["graph_nolegend"] = true;
			$graph_data_array["export"] = true;
			$graph_data_array["export_filename"] = "graphs/thumb_" . $graph["local_graph_id"] . ".png";

			export_log("Creating Graph '" . $cacti_export_path . $graph_data_array["export_filename"] . "'");

			@rrdtool_function_graph($graph["local_graph_id"], 0, $graph_data_array, $rrdtool_pipe);

			$total_graphs_created++;

			/* generate html files for each graph */
			if (!file_exists($cacti_export_path . "/graph_" . $graph["local_graph_id"] . ".html")) {
				export_log("Creating File  '" . $cacti_export_path . "/graph_" . $graph["local_graph_id"] . ".html");

				$fp_graph_index = fopen($cacti_export_path . "/graph_" . $graph["local_graph_id"] . ".html", "w");

				fwrite($fp_graph_index, HTML_HEADER_CLASSIC);
				fwrite($fp_graph_index, HTML_GRAPH_HEADER_ONE_CLASSIC);
				fwrite($fp_graph_index, "<strong>Graph - " . $graph["title_cache"] . "</strong>");
				fwrite($fp_graph_index, HTML_GRAPH_HEADER_TWO_CLASSIC);
				fwrite($fp_graph_index, "<td>");
			}else{
				$fp_graph_index = NULL;
			}

			/* reset vars for actual graph image creation */
			reset($rras);
			unset($graph_data_array);

			/* generate graphs for each rra */
			foreach ($rras as $rra) {
				$graph_data_array["export"] = true;
				$graph_data_array["export_filename"] = "graphs/graph_" . $graph["local_graph_id"] . "_" . $rra["id"] . ".png";

				export_log("Creating Graph '" . $cacti_export_path . $graph_data_array["export_filename"] . "'");

				@rrdtool_function_graph($graph["local_graph_id"], $rra["id"], $graph_data_array, $rrdtool_pipe);

				$total_graphs_created++;

				/* write image related html */
				fwrite($fp_graph_index, "<div align=center><img src='graphs/graph_" . $graph["local_graph_id"] . "_" . $rra["id"] . ".png' border=0></div>\n
					<div align=center><strong>" . $rra["name"] . "</strong></div><br>");
			}

			fwrite($fp_graph_index, "</td></table>");
			fwrite($fp_graph_index, HTML_GRAPH_FOOTER_CLASSIC);
			fwrite($fp_graph_index, HTML_FOOTER_CLASSIC);
			fclose($fp_graph_index);

			/* main graph page html */
			fwrite($fp_index, "<td align='center' width='" . round(100 / $classic_columns,0) . "%'><a href='graph_" . $graph["local_graph_id"] . ".html'><img src='graphs/thumb_" . $graph["local_graph_id"] . ".png' border='0' alt='" . $graph["title_cache"] . "'></a></td>\n");

			$i++;
			$k++;

			if ((($i % $classic_columns) == 0) && ($k < count($graphs))) {
				fwrite($fp_index, "</tr><tr>");
			}
  		}
	}else{
		fwrite($fp_index, "<td><em>No Graphs Found.</em></td>");
	}

	/* close the rrdtool pipe */
	rrd_close($rrdtool_pipe);

	fwrite($fp_index, HTML_GRAPH_FOOTER_CLASSIC);
	fwrite($fp_index, HTML_FOOTER_CLASSIC);
	fclose($fp_index);

	return $total_graphs_created;
}

function tree_export() {
	global $config;
	include_once($config["base_path"] . "/lib/time.php");

	$total_graphs_created = 0;

	/* set the user to utilize for establishing export permissions */
	$export_user = read_config_option("export_user_id");

	$current_user = db_fetch_row("SELECT * FROM user_auth WHERE id='" . $export_user . "'");

	$cacti_root_path   = $config["base_path"];
	$cacti_export_path = read_config_option("path_html_export");

	/* if the selected user has default rights, show all the graphs */
	if ($current_user["policy_trees"] == 1) {
		$trees = db_fetch_assoc("SELECT
			id,
			name
			FROM graph_tree");
	}else{
		/* otherwise, show only those tree's that the user has access to */
		$trees = db_fetch_assoc("SELECT
			graph_tree.id AS id,
			graph_tree.name AS name
			FROM user_auth_perms
			INNER JOIN graph_tree
			ON (user_auth_perms.item_id = graph_tree.id)
			WHERE user_auth_perms.user_id ='" . $current_user["id"] . "'");
	}

	/* if tree isolation is off, create the treeview and graphs directories for the initial hierarchy */
	if (read_config_option("export_tree_isolation") == "off") {
		/* create directory structure */
		create_export_directory_structure($cacti_root_path, $cacti_export_path);

		/* export graphs */
		foreach($trees as $tree) {
			$total_graphs_created += export_tree_graphs_and_graph_html("", $tree["id"]);
		}

		/* build base index files first */
		$stats["timestamp"] = date(date_time_format());
		$stats["total_graphs_created"] = $total_graphs_created;
		build_html_file(0, "index", $stats);

		foreach($trees as $tree) {
			$leaf["tree_id"] = $tree["id"];
			$leaf["title"] = "";
			$leaf["name"] = $tree["name"];

			build_html_file($leaf, "tree");

			/* build remainder of html files */
			export_tree_html("", clean_up_export_name($tree["name"]) . "_index.html", $tree["id"], 0);
		}
	}else{
		/* now let's populate all the sub trees */
		foreach ($trees as $tree) {
			/* create the base directory */
			if (!is_dir("$cacti_export_path/" . clean_up_export_name($tree["name"]))) {
				if (!mkdir("$cacti_export_path/" . clean_up_export_name($tree["name"]), 0755, true)) {
					export_fatal("Create directory '" . clean_up_export_name($tree["name"]) . "' failed.  Can not continue");
				}
			}

			create_export_directory_structure($cacti_root_path, $cacti_export_path . "/" . clean_up_export_name($tree["name"]));

			/* build base index files first */
			$stats["timestamp"] = date(date_time_format());
			$stats["total_graphs_created"] = $total_graphs_created;
			build_html_file($tree["id"], "index", $stats);

			$leaf["tree_id"] = $tree["id"];
			$leaf["title"] = "";
			$leaf["name"] = $tree["name"];

			build_html_file($leaf, "tree");

			$total_graphs_created += export_tree_graphs_and_graph_html(clean_up_export_name($tree["name"]), $tree["id"]);
			export_tree_html("graphs", "index.html", $tree["id"], 0);
		}
	}

	return $total_graphs_created;
}

function export_tree_html($path, $filename, $tree_id, $parent_tree_item_id) {
	/* auth check for hosts on the trees */
	if (read_config_option("auth_method") != 0) {
		$current_user = db_fetch_row("SELECT * FROM user_auth WHERE id=" . read_config_option("export_user_id"));

		$sql_join = "LEFT JOIN user_auth_perms ON (host.id=user_auth_perms.item_id AND user_auth_perms.type=3 AND user_auth_perms.user_id=" . read_config_option("export_user_id") . ")";

		if ($current_user["policy_hosts"] == "1") {
			$sql_where = "AND !(user_auth_perms.user_id IS NOT NULL AND graph_tree_items.host_id>0)";
		}elseif ($current_user["policy_hosts"] == "2") {
			$sql_where = "AND !(user_auth_perms.user_id IS NULL AND graph_tree_items.host_id>0)";
		}
	}else{
		$sql_join  = "";
		$sql_where = "";
	}

	if ($tree_id == 0) {
		$sql_where = "WHERE graph_tree_items.local_graph_id=0
			$sql_where";
	}else{
		$sql_where = "WHERE graph_tree_items.graph_tree_id=" . $tree_id . "
			$sql_where
			AND graph_tree_items.local_graph_id=0";
	}

	$hier_sql = "SELECT DISTINCT
		graph_tree.name,
		graph_tree.id AS tree_id,
		graph_tree_items.id,
		graph_tree_items.title,
		graph_tree_items.order_key,
		graph_tree_items.host_id,
		graph_tree_items.host_grouping_type,
		host.description AS hostname
		FROM graph_tree
		LEFT JOIN (graph_tree_items
		LEFT JOIN host ON (graph_tree_items.host_id=host.id)
		$sql_join)
		ON graph_tree.id = graph_tree_items.graph_tree_id
		$sql_where
		ORDER BY graph_tree.name, graph_tree_items.order_key";

	$hierarchy = db_fetch_assoc($hier_sql);

	$node = '';

	/* build all the html files */
	if (sizeof($hierarchy) > 0) {
		foreach ($hierarchy as $leaf) {
			if ($leaf["host_id"] > 0) {
				$node = build_html_file($leaf, "host", "", "", $node);

				if (read_config_option("export_tree_expand_hosts") == "on") {
					if ($leaf["host_grouping_type"] == HOST_GROUPING_GRAPH_TEMPLATE) {
						$graph_templates = db_fetch_assoc("SELECT
							graph_templates.id,
							graph_templates.name,
							graph_templates_graph.local_graph_id,
							graph_templates_graph.title_cache
							FROM (graph_local,graph_templates,graph_templates_graph)
							WHERE graph_local.id=graph_templates_graph.local_graph_id
							AND graph_templates_graph.graph_template_id=graph_templates.id
							AND graph_local.host_id=" . $leaf["host_id"] . "
							AND graph_templates_graph.export='on'
							GROUP BY graph_templates.id
							ORDER BY graph_templates.name");

						if (sizeof($graph_templates)) {
							foreach($graph_templates as $graph_template) {
								$node = build_html_file($leaf, "gt", $graph_template, "", "", $node);
							}
						}
					}else if ($leaf["host_grouping_type"] == HOST_GROUPING_DATA_QUERY_INDEX) {
						$data_queries = db_fetch_assoc("SELECT
							snmp_query.id,
							snmp_query.name
							FROM (graph_local,snmp_query)
							WHERE graph_local.snmp_query_id=snmp_query.id
							AND graph_local.host_id=" . $leaf["host_id"] . "
							GROUP BY snmp_query.id
							ORDER BY snmp_query.name");

						array_push($data_queries, array(
							"id" => "0",
							"name" => "Graph Template Based"
							));

						foreach ($data_queries as $data_query) {
							$node = build_html_file($leaf, "dq", $data_query, "", "", $node);

							/* fetch a list of field names that are sorted by the preferred sort field */
							$sort_field_data = get_formatted_data_query_indexes($leaf["host_id"], $data_query["id"]);

							if ($data_query["id"] > 0) {
								while (list($snmp_index, $sort_field_value) = each($sort_field_data)) {
									$node = build_html_file($leaf, "dqi", $data_query, $snmp_index);
								}
							}
						}
					}
				}
			}else{
				$node = build_html_file($leaf, "leaf", "", "", "", $node);
			}
		}
	}
}

function build_html_file($leaf, $type = "", $array_data = array(), $snmp_index = "", $prev_node = "") {
	$cacti_export_path = read_config_option("path_html_export");

	/* auth check for hosts on the trees */
	$current_user = db_fetch_row("SELECT * FROM user_auth WHERE id=" . read_config_option("export_user_id"));

	$sql_join  = "LEFT JOIN user_auth_perms ON (host.id=user_auth_perms.item_id AND user_auth_perms.type=3 AND user_auth_perms.user_id=" . read_config_option("export_user_id") . ")";

	$sql_where = get_graph_permissions_sql($current_user["policy_graphs"], $current_user["policy_hosts"], $current_user["policy_graph_templates"]);
	$sql_where = (empty($sql_where) ? "" : "AND $sql_where");

	switch ($type) {
	case "index":
		$sql_where = "";

		$filename = "index.html";

		break;
	case "tree":
		$sql_join = "LEFT JOIN user_auth_perms ON (graph_templates_graph.local_graph_id=user_auth_perms.item_id AND user_auth_perms.type=1 AND user_auth_perms.user_id=" . read_config_option("export_user_id") . ")";

		/* searching for the graph_tree_items of the tree_id which are graphs */
		if ($leaf["tree_id"] == 0) {
			$sql_where = "WHERE graph_templates_graph.local_graph_id!=0
				$sql_where
				AND graph_templates_graph.export='on'";

			$filename = "index.html";
		}else{
			$search_key = "";

			/* get the "starting leaf" if the user clicked on a specific branch */
			if (!empty($leaf["id"])) {
				$search_key = substr($leaf["order_key"], 0, (tree_tier($leaf["order_key"]) * CHARS_PER_TIER));
			}

			$sql_where = "WHERE graph_tree_items.graph_tree_id=" . $leaf["tree_id"] . "
				$sql_where
				AND graph_templates_graph.local_graph_id!=0
				AND graph_templates_graph.export='on'
				AND graph_tree_items.order_key like '$search_key" . str_repeat('_', CHARS_PER_TIER) . str_repeat('0', (MAX_TREE_DEPTH * CHARS_PER_TIER) - (strlen($search_key) + CHARS_PER_TIER)) . "'";

			if ($current_user["policy_graphs"] == 2) {
				$sql_where .= " AND user_auth_perms.item_id=graph_tree_items.local_graph_id";
			}

			$filename = clean_up_export_name(get_tree_name($leaf["tree_id"])) . "_" . $leaf['tree_id'] . ".html";
		}

		break;
	case "leaf":
		$sql_join = "LEFT JOIN user_auth_perms ON ((graph_templates_graph.local_graph_id=user_auth_perms.item_id and user_auth_perms.type=1 and user_auth_perms.user_id=" . $current_user["id"] . ") OR (host.id=user_auth_perms.item_id and user_auth_perms.type=3 and user_auth_perms.user_id=" . $current_user["id"] . ") OR (graph_templates.id=user_auth_perms.item_id and user_auth_perms.type=4 and user_auth_perms.user_id=" . $current_user["id"] . "))";

		/* searching for the graph_tree_items of the tree_id which are graphs */
		if ($leaf["tree_id"] == 0) {
			$sql_where = "WHERE graph_templates_graph.local_graph_id!=0
				$sql_where
				AND graph_templates_graph.export='on'";

			$filename = "index.html";
		}else{
			$search_key = "";

			/* get the "starting leaf" if the user clicked on a specific branch */
			if (!empty($leaf["id"])) {
				$search_key = substr($leaf["order_key"], 0, (tree_tier($leaf["order_key"]) * CHARS_PER_TIER));
			}

			$sql_where = "WHERE graph_tree_items.graph_tree_id=" . $leaf["tree_id"] . "
				$sql_where
				AND graph_templates_graph.local_graph_id!=0
				AND graph_templates_graph.export='on'
				AND graph_tree_items.order_key like '$search_key" . str_repeat('_', CHARS_PER_TIER) . str_repeat('0', (MAX_TREE_DEPTH * CHARS_PER_TIER) - (strlen($search_key) + CHARS_PER_TIER)) . "'";

			if ($current_user["policy_graphs"] == 2) {
				$sql_where .= " AND user_auth_perms.item_id=graph_tree_items.local_graph_id";
			}

			if (strlen($leaf["title"])) {
				$filename = clean_up_export_name(get_tree_name($leaf["tree_id"]) . "_" . $leaf["title"]) . "_" . $leaf["id"] . ".html";
			}else{
				$filename = clean_up_export_name(get_tree_name($leaf["tree_id"])) . "_" . $leaf["id"] . ".html";
				$i++;
			}
		}

		break;
	case "host":
		$sql_where = "WHERE graph_templates_graph.local_graph_id!=0
			$sql_where
			AND graph_local.host_id=" . $leaf["host_id"] . "
			AND graph_templates_graph.export='on'";

		$filename = clean_up_export_name($leaf["hostname"]) . "_" . $leaf["id"] . ".html";

		break;
	case "gt":
		$sql_where = "WHERE graph_templates_graph.local_graph_id!=0
			$sql_where
			AND graph_local.host_id=" . $leaf["host_id"] . "
			AND graph_templates_graph.export='on'
			AND graph_templates_graph.graph_template_id=" . $array_data["id"];

		$filename = clean_up_export_name($leaf["hostname"]) . "_gt_" . $leaf["id"] . "_" . $array_data["id"] . ".html";

		break;
	case "dq":
		$sql_where = "WHERE graph_templates_graph.local_graph_id!=0
			$sql_where
			AND graph_local.host_id=" . $leaf["host_id"] . "
			AND graph_local.snmp_query_id=" . $array_data["id"] . "
			AND graph_templates_graph.export='on'";

		$filename = clean_up_export_name($leaf["hostname"]) . "_dq_" . $leaf["id"] . "_" . $array_data["id"] . ".html";

		break;
	case "dqi":
		$sql_where = "WHERE graph_templates_graph.local_graph_id<>0
			$sql_where
			AND graph_local.host_id=" . $leaf["host_id"] . "
			AND graph_local.snmp_query_id=" . $array_data["id"] . "
			AND graph_local.snmp_index=" . $snmp_index . "
			AND graph_templates_graph.export='on'";

		$filename = clean_up_export_name($leaf["hostname"]) . "_dqi_" . $leaf["id"] . "_" . $array_data["id"] . "_" . $snmp_index . ".html";

		break;
	}

	switch ($type) {
	case "index":
		break;
	case "tree":
	case "leaf":
		$request = "SELECT DISTINCT
			graph_tree_items.id,
			graph_tree_items.title,
			graph_tree_items.local_graph_id,
			graph_tree_items.rra_id,
			graph_tree_items.order_key,
			graph_templates_graph.title_cache as title_cache
			FROM (graph_tree_items,graph_local)
			LEFT JOIN host ON (host.id=graph_local.host_id)
			LEFT JOIN graph_templates_graph ON (graph_tree_items.local_graph_id=graph_templates_graph.local_graph_id AND graph_tree_items.local_graph_id>0)
			LEFT JOIN graph_templates ON (graph_templates_graph.graph_template_id=graph_templates.id)
			$sql_join
			$sql_where
			GROUP BY graph_tree_items.id
			ORDER BY graph_tree_items.order_key";

		break;
	case "host":
	case "gt":
	case "dq":
	case "dqi":
		$request = "SELECT DISTINCT
			graph_templates_graph.id,
			graph_templates_graph.local_graph_id,
			graph_templates_graph.height,
			graph_templates_graph.width,
			graph_templates_graph.title_cache,
			graph_templates.name
			FROM (graph_tree_items, graph_templates_graph)
			LEFT JOIN graph_templates ON (graph_templates_graph.graph_template_id=graph_templates.id)
			LEFT JOIN graph_local ON (graph_templates_graph.local_graph_id=graph_local.id)
			LEFT JOIN host ON (host.id=graph_local.host_id)
			$sql_join
			$sql_where" . (strlen($sql_where) ? " AND ":"WHERE ") .
			"graph_templates_graph.export='on'
			ORDER BY graph_templates_graph.title_cache";

		break;
	}

	if ($type == "index") {
		$graphs = array();
	}else{
		$graphs = db_fetch_assoc($request);
	}

	/* get the path name */
	if (read_config_option("export_tree_isolation") == "off") {
		$path = "";
	}else{
		$path = clean_up_export_name(get_tree_name($leaf["tree_id"]));
	}

	export_log("Creating File  '" . $cacti_export_path . "/" . $path . "/" . $filename . "'");

	/* assign the node id */
	$new_node = str_replace(".html", "", $filename);

	/* open pointer to the new file */
	$fp = fopen($cacti_export_path . "/" . $path . "/" . $filename, "w");

	/* begin old stuff */
	$cacti_export_path = read_config_option("path_html_export");

	/* write the html header data to the file */
	fwrite($fp, HTML_HEADER_TREE);

	/* write the code for the tree at the left */
	draw_html_left_tree($fp, $leaf["tree_id"], $prev_node);

	/* write the associated graphs for this graph_tree_item or graph_tree*/
	fwrite($fp, HTML_GRAPH_HEADER_ONE_TREE);
	switch($type) {
	case "index":
		fwrite($fp, "<strong>Graphs Last Updated on :</strong></td></tr>" .
				"<tr bgcolor='#a9b7cb'>" .
					"<td colspan='3' class='textHeaderDark'>" .
						"Export Date: " . $array_data["timestamp"] . "<br>" .
						"Total Graphs: " . $array_data["total_graphs_created"] .
					"</td>" .
				"</tr><tr>");
		break;
	case "tree":
		fwrite($fp, "<strong>Tree:</strong> " . get_tree_name($leaf["tree_id"]) . " - Associated Graphs" . "</td></tr><tr>");
		break;
	case "leaf":
		fwrite($fp, "<strong>Tree:</strong> " . get_tree_name($leaf["tree_id"]) . "</td></tr><tr bgcolor='#a9b7cb'><td colspan='3' class='textHeaderDark'><strong>Leaf:</strong> " . $leaf["title"] . " - Associated Graphs" . "</td></tr><tr>");
		break;
	case "host":
		fwrite($fp, "<strong>Host:</strong> " . $leaf["hostname"] . " - Associated Graphs" . "</td></tr><tr>");
		break;
	case "gt":
		fwrite($fp, "<strong>Host:</strong> " . $leaf["hostname"] . "</td></tr><tr bgcolor='#a9b7cb'><td colspan='3' class='textHeaderDark'><strong>Graph Template:</strong> " . $array_data["name"] . " - Associated Graphs" . "</td></tr><tr>");
		break;
	case "dq":
		fwrite($fp, "<strong>Host:</strong> " . $leaf["hostname"] . "</td></tr><tr bgcolor='#a9b7cb'><td colspan='3' class='textHeaderDark'><strong>Data Query:</strong> " . $array_data["name"] . " - Associated Graphs" . "</td></tr><tr>");
		break;
	case "dqi":
		fwrite($fp, "<strong>Host:</strong> " . $leaf["hostname"] . "</td></tr><tr bgcolor='#a9b7cb'><td colspan='3' class='textHeaderDark'><strong>Data Query Index:</strong> " . $array_data["name"] . " " . $snmp_index . " - Graph" . "</td></tr><tr>");
		break;
	}

	$i = 0;
	if (sizeof($graphs)) {
	foreach($graphs as $graph) {
		/* write the right pane syntax */
		if ($leaf["tree_id"] != 0) {
			/* main graph page html */
			fwrite($fp, "<td align='center'><a href='" . "graph_" . $graph["local_graph_id"] . ".html'><img src='graphs/thumb_" . $graph["local_graph_id"] . ".png' border='0' alt='" . $graph["title_cache"] . "'></a></td>\n");

			/* do new column processing */
			$i++;
			if ($i >= read_config_option("export_num_columns")) {
				fwrite($fp, "</tr><tr>");
				$i = 0;
			}
		}
	}
	}

	/* write the html footer to the file */
	fwrite($fp, HTML_FOOTER_TREE);
	fclose($fp);

	return $new_node;
}

function explore_tree($path, $tree_id, $parent_tree_item_id) {
	/* seek graph_tree_items of the tree_id which are NOT graphs but headers */
	$links = db_fetch_assoc("SELECT
		id,
		title,
		host_id
		FROM graph_tree_items
		WHERE rra_id = 0
		AND graph_tree_id = " . $tree_id);

	$total_graphs_created = 0;

	foreach($links as $link) {
		/* this test gives us the parent of the curent graph_tree_item */
		if (get_parent_id($link["id"], "graph_tree_items", "graph_tree_id = " . $tree_id) == $parent_tree_item_id) {
			if (get_tree_item_type($link["id"]) == "host") {
				if (read_config_option("export_tree_isolation") == "off") {
					$total_graphs_created += export_build_tree_single(clean_up_export_name($path), clean_up_export_name(get_host_description($link["host_id"]) . "_" . $link["id"] . ".html"), $tree_id, $link["id"]);
				}else{
					$total_graphs_created += export_build_tree_isolated(clean_up_export_name($path), clean_up_export_name(get_host_description($link["host_id"]) . "_" . $link["id"] . ".html"), $tree_id, $link["id"]);
				}
			}else {
				/*now, this graph_tree_item is the parent of others graph_tree_items*/
				if (read_config_option("export_tree_isolation") == "off") {
					$total_graphs_created += export_build_tree_single(clean_up_export_name($path), clean_up_export_name($link["title"] . "_" . $link["id"] . ".html"), $tree_id, $link["id"]);
				}else{
					$total_graphs_created += export_build_tree_isolated(clean_up_export_name($path), clean_up_export_name($link["title"] . "_" . $link["id"] . ".html"), $tree_id, $link["id"]);
				}
			}
		}
	}

	return $total_graphs_created;
}

/* export_is_tree_allowed - determines whether the export user is allowed to view a certain graph tree
   @arg $tree_id - (int) the ID of the graph tree to check permissions for
   @returns - (bool) whether the current user is allowed the view the specified graph tree or not */
function export_is_tree_allowed($tree_id) {
	$current_user = db_fetch_row("select policy_trees from user_auth where id=" . read_config_option("export_user_id"));

	$trees = db_fetch_assoc("select
		user_id
		from user_auth_perms
		where user_id=" . read_config_option("export_user_id") . "
		and type=2
		and item_id=$tree_id");

	/* policy == allow AND matches = DENY */
	if ((sizeof($trees) > 0) && ($current_user["policy_trees"] == "1")) {
		return false;
	/* policy == deny AND matches = ALLOW */
	}elseif ((sizeof($trees) > 0) && ($current_user["policy_trees"] == "2")) {
		return true;
	/* policy == allow AND no matches = ALLOW */
	}elseif ((sizeof($trees) == 0) && ($current_user["policy_trees"] == "1")) {
		return true;
	/* policy == deny AND no matches = DENY */
	}elseif ((sizeof($trees) == 0) && ($current_user["policy_trees"] == "2")) {
		return false;
	}
}

function export_tree_graphs_and_graph_html($path, $tree_id) {
	global $colors, $config;
	include_once($config["library_path"] . "/tree.php");
	include_once($config["library_path"] . "/data_query.php");

	/* start the count of graphs */
	$total_graphs_created = 0;
	$exported_files = array();

	$cacti_export_path = read_config_option("path_html_export");

	/* auth check for hosts on the trees */
	$current_user = db_fetch_row("SELECT * FROM user_auth WHERE id=" . read_config_option("export_user_id"));

	if (!export_is_tree_allowed($tree_id)) {
		return 0;
	}

	$sql_join = "LEFT JOIN graph_local ON (graph_templates_graph.local_graph_id=graph_local.id)
		LEFT JOIN graph_templates ON (graph_templates.id=graph_local.graph_template_id)
		LEFT JOIN host ON (host.id=graph_local.host_id)
		LEFT JOIN user_auth_perms ON ((graph_templates_graph.local_graph_id=user_auth_perms.item_id and user_auth_perms.type=1 AND user_auth_perms.user_id=" . $current_user["id"] . ") OR (host.id=user_auth_perms.item_id AND user_auth_perms.type=3 AND user_auth_perms.user_id=" . $current_user["id"] . ") OR (graph_templates.id=user_auth_perms.item_id AND user_auth_perms.type=4 AND user_auth_perms.user_id=" . $current_user["id"] . "))";

	$sql_where = get_graph_permissions_sql($current_user["policy_graphs"], $current_user["policy_hosts"], $current_user["policy_graph_templates"]);
	$sql_where = (empty($sql_where) ? "" : "AND $sql_where");

	$graphs = array();

	if ($tree_id == 0) {
		$hosts = db_fetch_assoc("SELECT DISTINCT host_id FROM graph_tree_items");
	}else{
		$hosts = db_fetch_assoc("SELECT DISTINCT host_id FROM graph_tree_items WHERE graph_tree_id=" . $tree_id);
	}

	/* get a list of host graphs first */
	if (sizeof($hosts)) {
	foreach ($hosts as $host) {
		$hosts_sql = "SELECT DISTINCT
			graph_templates_graph.id,
			graph_templates_graph.local_graph_id,
			graph_templates_graph.height,
			graph_templates_graph.width,
			graph_templates_graph.title_cache,
			graph_templates.name,
			graph_local.host_id,
			graph_tree_items.rra_id
			FROM (graph_tree_items, graph_templates_graph)
			$sql_join
			WHERE ((graph_templates_graph.local_graph_id<>0)
			$sql_where
			AND (graph_local.host_id=" . $host["host_id"] . ")
			AND (graph_templates_graph.export='on'))
			ORDER BY graph_templates_graph.title_cache";

		$host_graphs = db_fetch_assoc($hosts_sql);

		if (sizeof($host_graphs)) {
			if (sizeof($graphs)) {
				$graphs = array_merge($host_graphs, $graphs);
			}else{
				$graphs = $host_graphs;
			}
		}
	}
	}

	/* now get the list of graphs placed within the tree */
	if ($tree_id == 0) {
		$sql_where = "WHERE graph_templates_graph.local_graph_id!=0
			$sql_where
			AND graph_templates_graph.export='on'";
	}else{
		$sql_where = "WHERE graph_tree_items.graph_tree_id =" . $tree_id . "
			$sql_where
			AND graph_templates_graph.local_graph_id!=0
			AND graph_templates_graph.export='on'";
	}

	$non_host_sql = "SELECT
		graph_templates_graph.id,
		graph_templates_graph.local_graph_id,
		graph_templates_graph.height,
		graph_templates_graph.width,
		graph_templates_graph.title_cache,
		graph_templates.name,
		graph_local.host_id,
		graph_tree_items.rra_id,
		graph_tree_items.id AS gtid
		FROM (graph_tree_items, graph_templates_graph)
		$sql_join
		$sql_where
		AND graph_tree_items.local_graph_id = graph_templates_graph.local_graph_id
		AND graph_templates_graph.export='on'
		ORDER BY graph_templates_graph.title_cache";

	$non_host_graphs = db_fetch_assoc($non_host_sql);

	if (sizeof($non_host_graphs)) {
		if (sizeof($graphs)) {
			$graphs = array_merge($non_host_graphs, $graphs);
		}else{
			$graphs = $non_host_graphs;
		}
	}

	/* open a pipe to rrdtool for writing */
	$rrdtool_pipe = rrd_init();

	/* for each graph... */
	$i = 0;
	if (sizeof($graphs) > 0) {
	foreach($graphs as $graph)  {
		$rras = get_associated_rras($graph["local_graph_id"]);

		/* settings for preview graphs */
		$graph_data_array["graph_height"] = read_config_option("export_default_height");
		$graph_data_array["graph_width"] = read_config_option("export_default_width");
		$graph_data_array["graph_nolegend"] = true;
		$graph_data_array["export"] = true;

		if (read_config_option("export_tree_isolation") == "on") {
			$graph_data_array["export_filename"] =  "/" . $path . "/graphs/thumb_" . $graph["local_graph_id"] . ".png";
			$export_filename = $cacti_export_path . "/" . $path . "/graphs/thumb_" . $graph["local_graph_id"] . ".png";
		}else{
			$graph_data_array["export_filename"] = "/graphs/thumb_" . $graph["local_graph_id"] . ".png";
			$export_filename = $cacti_export_path . "/graphs/thumb_" . $graph["local_graph_id"] . ".png";
		}

		if (!array_search($export_filename, $exported_files)) {
			/* add the graph to the exported list */
			array_push($exported_files, $export_filename);

			export_log("Creating Graph '" . $cacti_export_path . $graph_data_array["export_filename"] . "'");

			/* generate the graph */
			@rrdtool_function_graph($graph["local_graph_id"], $graph["rra_id"], $graph_data_array, $rrdtool_pipe);
			$total_graphs_created++;

			/* generate html files for each graph */
			if (read_config_option("export_tree_isolation") == "on") {
				export_log("Creating File  '" . $cacti_export_path . "/" . $path ."/graph_" . $graph["local_graph_id"] . ".html'");
				$fp_graph_index = fopen($cacti_export_path . "/" . $path ."/graph_" . $graph["local_graph_id"] . ".html", "w");
			}else{
				export_log("Creating File  '" . $cacti_export_path . "/graph_" . $graph["local_graph_id"] . ".html'");
				$fp_graph_index = fopen($cacti_export_path . "/graph_" . $graph["local_graph_id"] . ".html", "w");
			}

			/* assign the node id */
			$node = '';

			fwrite($fp_graph_index, HTML_HEADER_TREE);

			/* write the code for the tree at the left */
			draw_html_left_tree($fp_graph_index, $tree_id, $node);

			fwrite($fp_graph_index, HTML_GRAPH_HEADER_ONE_TREE);
			fwrite($fp_graph_index, "<strong>Graph - " . $graph["title_cache"] . "</strong></td></tr>");
			fwrite($fp_graph_index, HTML_GRAPH_HEADER_TWO_TREE);
			fwrite($fp_graph_index, "<td>");

			/* reset vars for actual graph image creation */
			reset($rras);
			unset($graph_data_array);

			/* generate graphs for each rra */
			foreach ($rras as $rra) {
				$graph_data_array["export"] = true;

				if (read_config_option("export_tree_isolation") == "on") {
					$graph_data_array["export_filename"] = "/" . $path . "/graphs/graph_" . $graph["local_graph_id"] . "_" . $rra["id"] . ".png";
				}else{
					$graph_data_array["export_filename"] = "/graphs/graph_" . $graph["local_graph_id"] . "_" . $rra["id"] . ".png";
				}

				export_log("Creating Graph '" . $cacti_export_path . $graph_data_array["export_filename"] . "'");

				@rrdtool_function_graph($graph["local_graph_id"], $rra["id"], $graph_data_array, $rrdtool_pipe);
				$total_graphs_created++;

				/* write image related html */
				if (read_config_option("export_tree_isolation") == "off") {
					fwrite($fp_graph_index, "<div align=center><img src='graphs/graph_" . $graph["local_graph_id"] . "_" . $rra["id"] . ".png' border=0></div>\n
						<div align=center><strong>".$rra["name"]."</strong></div><br>");
				}else{
					fwrite($fp_graph_index, "<div align=center><img src='" . "graphs/graph_" . $graph["local_graph_id"] . "_" . $rra["id"] . ".png' border=0></div>\n
						<div align=center><strong>".$rra["name"]."</strong></div><br>");
				}
			}

			fwrite($fp_graph_index, "</td></tr></table></td></tr></table>");
			fwrite($fp_graph_index, HTML_FOOTER_TREE);
			fclose($fp_graph_index);
		}
	}
	}

	/* close the rrdtool pipe */
	rrd_close($rrdtool_pipe);

	return $total_graphs_created;
}

function draw_html_left_tree($fp, $tree_id, $node)  {
	/* create the treeview representation for the html data */
	grow_dhtml_trees_export($fp, $tree_id, $node);

	fwrite($fp,"</td></tr></table></td>\n");
	fwrite($fp,"<td valign='top' style='padding: 5px; border-right: #aaaaaa 1px solid;'>\n");
	fwrite($fp,"<div id='main' style='position:static;'>\n");
}

function grow_dhtml_trees_export($fp, $tree_id, $node) {
	global $config, $dhtml_trees;
	include_once($config["library_path"] . "/tree.php");
	include_once($config["library_path"] . "/data_query.php");
	fwrite($fp, "\t<div id=\"jstree\">\n");

	if (read_config_option("export_tree_isolation") == "off") {
		$dhtml_tree_base = 0;
	}else{
		$dhtml_tree_base = $tree_id;
	}

	if (!isset($dhtml_trees[$dhtml_tree_base])) {
		$dhtml_tree = create_dhtml_tree_export($dhtml_tree_base);
		$dhtml_trees[$dhtml_tree_base] = $dhtml_tree;
	}else{
		$dhtml_tree = $dhtml_trees[$dhtml_tree_base];
	}

	foreach($dhtml_tree as $key => $item){
		if ($key > 1) {
			fwrite($fp,$item);
		}
	}

	fwrite($fp, "</div>\n");
	fwrite($fp, "<script type=\"text/javascript\">\n");
	fwrite($fp, "
		//var node='$node';
		var node='';

		if (node == '') {
			node = basename(document.location.pathname, '.html');
		}

		function basename(path, suffix) {
			var b = path;
			var lastChar = b.charAt(b.length - 1);

			if (lastChar === '/' || lastChar === '\\\\') {
				b = b.slice(0, -1);
			}

			b = b.replace(/^.*[\\/\\\\]/g, '');

			if (typeof suffix === 'string' && b.substr(b.length - suffix.length) == suffix) {
				b = b.substr(0, b.length - suffix.length);
			}

			return b;
		}

		$(function () {
			$('#navigation').css('height', ($(window).height()-80)+'px');
			$(window).resize(function() {
				$('#navigation').css('height', ($(window).height()-80)+'px');
			});

			$('#jstree')
			.on('ready.jstree', function(e, data) {
				if (node!='') {
					$('#jstree').jstree('set_theme', 'default', './js/themes/default/style.css');
					if (node.substring(0,6) != 'graph_') {
						$('#jstree').jstree('deselect_all', node);
						$('#jstree').jstree('select_node', node);
						$('#jstree').jstree('save_state');
					}
				}
			})
			.on('set_state.jstree', function(e, data) {
				if (node.substring(0,6) != 'graph_') {
					$('#jstree').jstree('deselect_all', node);
					$('#jstree').jstree('select_node', node);
					$('#jstree').jstree('save_state');
				}
			})
			.on('activate_node.jstree', function(e, data) {
				if (data.node.id) {
					document.location = $('#'+data.node.id+' > a').attr('href');
				}
			})
			.jstree({
				'core' : {
					'animation' : 0
				},
				'themes' : {
					'name' : 'default',
					'responsive' : true,
					'url' : true,
					'dots' : true
				},
				'plugins' : [ 'state', 'wholerow' ]
			});
		});\n");

	fwrite($fp, "\t\t</script>\n");
	fwrite($fp, "\t</div>\n");
}

/* get_graph_tree_array_export - returns a list of graph trees taking permissions into account if
     necessary
   @arg $return_sql - (bool) Whether to return the SQL to create the dropdown rather than an array
	@arg $force_refresh - (bool) Force the refresh of the array from the database
   @returns - (array) an array containing a list of graph trees */
function get_graph_tree_array_export($return_sql = false, $force_refresh = false) {
	global $config;

	/* set the tree update time if not already set */
	if (!isset($config["config_options_array"]["tree_update_time"])) {
		$config["config_options_array"]["tree_update_time"] = time();
	}

	/* build tree array */
	if (!isset($config["config_options_array"]["tree_array"]) || ($force_refresh) ||
		(($config["config_options_array"]["tree_update_time"] + read_graph_config_option("page_refresh")) < time())) {

		if (read_config_option("auth_method") != 0) {
			$current_user = db_fetch_row("SELECT id, policy_trees FROM user_auth WHERE id=" . read_config_option("export_user_id"));

			if ($current_user["policy_trees"] == "1") {
				$sql_where = "WHERE user_auth_perms.user_id IS NULL";
			}elseif ($current_user["policy_trees"] == "2") {
				$sql_where = "WHERE user_auth_perms.user_id IS NOT NULL";
			}

			$sql = "SELECT
				graph_tree.id,
				graph_tree.name,
				user_auth_perms.user_id
				FROM graph_tree
				LEFT JOIN user_auth_perms ON (graph_tree.id=user_auth_perms.item_id AND user_auth_perms.type=2 AND user_auth_perms.user_id=" . $current_user["id"] . ")
				$sql_where
				ORDER BY graph_tree.name";
		}else{
			$sql = "SELECT * FROM graph_tree ORDER BY name";
		}

		$config["config_options_array"]["tree_array"] = $sql;
		$config["config_options_array"]["tree_update_time"] = time();
	} else {
		$sql = $config["config_options_array"]["tree_array"];
	}

	if ($return_sql == true) {
		return $sql;
	}else{
		return db_fetch_assoc($sql);
	}
}

function create_dhtml_tree_export($tree_id) {
	/* record start time */
	list($micro,$seconds) = explode(" ", microtime());
	$start = $seconds + $micro;
	$search_key = "";

	$dhtml_tree = array();
	$dhtml_tree[0] = $start;
	$dhtml_tree[1] = read_graph_config_option("expand_hosts");
	$i = 1;

	$tree_list = get_graph_tree_array_export();

	/* auth check for hosts on the trees */
	$current_user = db_fetch_row("SELECT * FROM user_auth WHERE id=" . read_config_option("export_user_id"));

	$sql_join  = "LEFT JOIN user_auth_perms ON ((graph_templates_graph.local_graph_id=user_auth_perms.item_id and user_auth_perms.type=1 AND user_auth_perms.user_id=" . $current_user["id"] . ") OR (host.id=user_auth_perms.item_id AND user_auth_perms.type=3 AND user_auth_perms.user_id=" . $current_user["id"] . ") OR (graph_templates.id=user_auth_perms.item_id AND user_auth_perms.type=4 AND user_auth_perms.user_id=" . $current_user["id"] . "))";

	if ($current_user["policy_hosts"] == "1") {
		$sql_where = "AND !(user_auth_perms.user_id IS NOT NULL AND graph_tree_items.host_id>0)";
	}elseif ($current_user["policy_hosts"] == "2") {
		$sql_where = "AND !(user_auth_perms.user_id IS NULL AND graph_tree_items.host_id>0)";
	}

	if (sizeof($tree_list) > 0) {
	foreach ($tree_list as $tree) {
		if (((read_config_option("export_tree_isolation") == "on") && ($tree_id == $tree["id"])) ||
			(read_config_option("export_tree_isolation") == "off")) {


			$hier_sql = "SELECT DISTINCT
					graph_tree_items.id,
					graph_tree_items.title,
					graph_tree_items.order_key,
					graph_tree_items.host_id,
					graph_tree_items.host_grouping_type,
					host.description as hostname
					FROM (graph_tree_items, graph_templates_graph)
					LEFT JOIN host ON (host.id=graph_tree_items.host_id)
					LEFT JOIN graph_templates ON (graph_templates_graph.graph_template_id=graph_templates.id)
					$sql_join
					WHERE graph_tree_items.graph_tree_id=" . $tree["id"] . "
					$sql_where
					AND graph_tree_items.local_graph_id = 0
					ORDER BY graph_tree_items.order_key";

			$hierarchy = db_fetch_assoc($hier_sql);

			$dhtml_tree_id = 0;

			if (sizeof($hierarchy) > 0) {
				$last_tier = 1;
				$openli = false;
				$lasthost = false;
				$opentree = false;
				foreach ($hierarchy as $leaf) {
					if ($dhtml_tree_id <> $tree["id"]) {
						if ($opentree) {
							$i++;
							$dhtml_tree[$i] = "\t\t\t</ul>\n\t\t</li>\n\t</ul>\n";
						}
						$i++;
						$clean_id = clean_up_export_name(get_tree_name($tree["id"]) . "_" . $tree['id']);
						$dhtml_tree[$i] = "\t<ul>\n\t\t<li id='$clean_id'><a href='" . $clean_id . ".html'>" . get_tree_name($tree["id"]) . "</a>\n\t\t\t<ul>\n";
						$opentree = true;
					}
					$dhtml_tree_id = $tree["id"];

					$tier = tree_tier($leaf["order_key"]);

					if ($leaf["host_id"] > 0) {  //It's a host
						if ($tier > $last_tier) {
							$i++;
							$dhtml_tree[$i] = "\t\t\t<ul>\n";
						} elseif ($tier < $last_tier) {
							if (!$lasthost) {
								$i++;
								$dhtml_tree[$i] = "\t\t\t\t</li>\n";
							}
							for ($x = $tier; $x < $last_tier; $x++) {
								$i++;
								$dhtml_tree[$i] = "\t\t\t</ul>\n\t\t\t\t</li>\n";
								$openli = false;
							}
						} elseif ($openli && !$lasthost) {
							$i++;
							$dhtml_tree[$i] = "\t\t\t\t</li>\n";
							$openli = false;
						}
						$last_tier = $tier;
						$lasthost = true;
						$i++;
						$clean_id = clean_up_export_name($leaf["hostname"] . "_" . $leaf["id"]);
						$dhtml_tree[$i] = "\t\t\t\t<li id='$clean_id' data-jstree='{ \"icon\" : \"./server.png\" }'><a href=\"" . $clean_id . ".html\">Host: " . htmlspecialchars($leaf["hostname"]) . "</a>\n";

						if (read_config_option("export_tree_expand_hosts") == "on") {
							$i++;
							$dhtml_tree[$i] = "\t\t\t\t\t<ul>\n";
							if ($leaf["host_grouping_type"] == HOST_GROUPING_GRAPH_TEMPLATE) {
								$graph_templates = db_fetch_assoc("SELECT
									graph_templates.id,
									graph_templates.name,
									graph_templates_graph.local_graph_id,
									graph_templates_graph.title_cache
									FROM (graph_local,graph_templates,graph_templates_graph)
									WHERE graph_local.id=graph_templates_graph.local_graph_id
									AND graph_templates_graph.graph_template_id=graph_templates.id
									AND graph_local.host_id=" . $leaf["host_id"] . "
									AND graph_templates_graph.export='on'
									GROUP BY graph_templates.id
									ORDER BY graph_templates.name");

							 	if (sizeof($graph_templates) > 0) {
									foreach ($graph_templates as $graph_template) {
										$i++;
										$clean_id = clean_up_export_name($leaf["hostname"] . "_gt_" . $leaf["id"] . "_" . $graph_template["id"]);
										$dhtml_tree[$i] = "\t\t\t\t\t\t<li id='" . $clean_id . "' data-jstree='{ \"icon\" : \"./server_chart.png\" }'><a href=\"" . $clean_id . ".html\">" . htmlspecialchars($graph_template["name"]) . "</a></li>\n";
									}
								}
							}else if ($leaf["host_grouping_type"] == HOST_GROUPING_DATA_QUERY_INDEX) {
								$data_queries = db_fetch_assoc("SELECT
									snmp_query.id,
									snmp_query.name
									FROM (graph_local,snmp_query)
									WHERE graph_local.snmp_query_id=snmp_query.id
									AND graph_local.host_id=" . $leaf["host_id"] . "
									GROUP BY snmp_query.id
									ORDER BY snmp_query.name");

								array_push($data_queries, array(
									"id" => "0",
									"name" => "Non Query Based"
									));

								if (sizeof($data_queries) > 0) {
									foreach ($data_queries as $data_query) {
										$i++;
										$clean_id = clean_up_export_name($leaf["hostname"] . "_dq_" . $leaf["title"] . "_" . $leaf["id"] . "_" . $data_query["id"]);
										if ($data_query['name'] != 'Non Query Based') {
											$dhtml_tree[$i] = "\t\t\t\t\t\t<li id='" . $clean_id . "' data-jstree='{ \"icon\" : \"./server_dataquery.png\" }'><a href=\"" . $clean_id . ".html\">" . htmlspecialchars($data_query["name"]) . "</a>\n";
										}else{
											$dhtml_tree[$i] = "\t\t\t\t\t\t<li id='" . $clean_id . "' data-jstree='{ \"icon\" : \"./server_chart.png\" }'><a href=\"" . $clean_id . ".html\">" . htmlspecialchars($data_query["name"]) . "</a>\n";
										}

										/* fetch a list of field names that are sorted by the preferred sort field */
										$sort_field_data = get_formatted_data_query_indexes($leaf["host_id"], $data_query["id"]);

										if ($data_query["id"] > 0) {
											$i++;
											$dhtml_tree[$i] = "\t\t\t\t\t\t\t<ul>\n";
											while (list($snmp_index, $sort_field_value) = each($sort_field_data)) {
												$i++;
												$clean_id = clean_up_export_name($leaf["hostname"] . "_dqi_" . $leaf["id"] . "_" . $data_query["id"] . "_" . $snmp_index);
												$dhtml_tree[$i] = "\t\t\t\t\t\t\t\t<li id='" . $clean_id . "' data-jstree='{ \"icon\" : \"./server_chart_curve.png\" }'><a href=\"" . $clean_id . ".html\">" . htmlspecialchars($sort_field_value) . "</a></li>\n";
											}
											$i++;
											$dhtml_tree[$i] = "\t\t\t\t\t\t\t</ul>\n";
										}
										$i++;
										$dhtml_tree[$i] = "\t\t\t\t\t\t</li>\n";
									}
								}
							}
							$i++;
							$dhtml_tree[$i] = "\t\t\t\t\t</ul>\n";
						}
						$i++;
						$dhtml_tree[$i] = "\t\t\t\t</li>\n";
					}else { //It's not a host
						if ($tier > $last_tier) {
							$i++;
							$dhtml_tree[$i] = "\t\t\t<ul>\n";
						} elseif ($tier < $last_tier) {
							if (!$lasthost) {
								$i++;
								$dhtml_tree[$i] = "</li>\n";
							}
							for ($x = $tier; $x < $last_tier; $x++) {
								$i++;
								$dhtml_tree[$i] = "\t\t\t\t</ul>\n\t\t\t\t</li>\n";
								$openli = false;
							}
						} elseif ($openli && !$lasthost) {
							$i++;
							$dhtml_tree[$i] = "</li>\n";
							$openli = false;
						}
						$last_tier = $tier;
						$i++;
						$clean_id = clean_up_export_name(get_tree_name($tree["id"]) . "_" . $leaf["title"] . "_" . $leaf["id"]);
						$dhtml_tree[$i] = "\t\t\t\t<li id=\"" . $clean_id . "\"><a href=\"" . $clean_id . ".html\">" . htmlspecialchars($leaf["title"]) . "</a>\n";
						$openli = true;
						$lasthost = false;
					}
				}
				for ($x = $last_tier; $x > 1; $x--) {
					$i++;
					$dhtml_tree[$i] = "\t\t\t\t\t</ul>\n\t\t\t\t</li>\n";
				}
				$i++;
				$dhtml_tree[$i] = "\t\t\t</ul>\n\t\t</li>\n\t</ul>\n";
			}else{
				if ($dhtml_tree_id <> $tree["id"]) {
					$i++;
					$clean_id = clean_up_export_name(get_tree_name($tree["id"]) . "_" . $tree['id']);
					$dhtml_tree[$i] = "\t<ul>\n\t\t<li id=\"" . $clean_id . "\"><a href=\"" . $clean_id . ".html\">" . get_tree_name($tree["id"]) . "</a></li>\n\t</ul>";
				}
			}
		}
	}
	}

	return $dhtml_tree;
}

/* create_export_directory_structure - builds the export directory strucutre and copies
   graphics and treeview scripts to those directories.
   @arg $cacti_root_path - the directory where Cacti is installed
        $dir - the export directory where graphs will either be staged or located.
*/
function create_export_directory_structure($cacti_root_path, $dir) {
	/* create the treeview sub-directory */
	if (!is_dir("$dir/js")) {
		if (!mkdir("$dir/js", 0755, true)) {
			export_fatal("Create directory '" . $dir . "/js' failed.  Can not continue");
		}
		if (!mkdir("$dir/js/themes/default", 0755, true)) {
			export_fatal("Create directory '" . $dir . "/js/themes/default' failed.  Can not continue");
		}
		if (!mkdir("$dir/js/images", 0755, true)) {
			export_fatal("Create directory '" . $dir . "/js/images' failed.  Can not continue");
		}
	}

	/* create the graphs sub-directory */
	if (!is_dir("$dir/graphs")) {
		if (!mkdir("$dir/graphs", 0755, true)) {
			export_fatal("Create directory '" . $dir . "/graphs' failed.  Can not continue");
		}
	}

	/* css */
	copy("$cacti_root_path/include/main.css", "$dir/main.css");

	/* images for html */
	copy("$cacti_root_path/images/tab_cacti.gif", "$dir/tab_cacti.gif");
	copy("$cacti_root_path/images/cacti_backdrop.gif", "$dir/cacti_backdrop.gif");
	copy("$cacti_root_path/images/transparent_line.gif", "$dir/transparent_line.gif");
	copy("$cacti_root_path/images/shadow.gif", "$dir/shadow.gif");
	copy("$cacti_root_path/images/shadow_gray.gif", "$dir/shadow_gray.gif");

	$files = array("server_chart_curve.png", "server_chart.png", "server_dataquery.png", "server.png");
	foreach($files as $file) {
		copy("$cacti_root_path/images/$file", "$dir/$file");
	}

	/* jstree theme files */
	$files = array("32px.png", "40px.png", "style.css", "style.min.css", "throbber.gif");
	foreach($files as $file) {
		copy("$cacti_root_path/include/js/themes/default/$file", "$dir/js/themes/default/$file");
	}

	/* jquery-ui theme files */
	$files = array(
		"ui-bg_diagonals-thick_18_b81900_40x40.png",
		"ui-bg_diagonals-thick_20_666666_40x40.png",
		"ui-bg_flat_10_000000_40x100.png",
		"ui-bg_glass_100_f6f6f6_1x400.png",
		"ui-bg_glass_100_fdf5ce_1x400.png",
		"ui-bg_glass_65_ffffff_1x400.png",
		"ui-bg_gloss-wave_35_f6a828_500x100.png",
		"ui-bg_highlight-soft_100_eeeeee_1x100.png",
		"ui-bg_highlight-soft_75_ffe45c_1x100.png",
		"ui-icons_222222_256x240.png",
		"ui-icons_228ef1_256x240.png",
		"ui-icons_ef8c08_256x240.png",
		"ui-icons_ffd27a_256x240.png",
		"ui-icons_ffffff_256x240.png"
	);
	foreach($files as $file) {
		copy("$cacti_root_path/include/js/images/$file", "$dir/js/images/$file");
	}

	/* java scripts for the tree */
	copy("$cacti_root_path/include/js/jquery.js", "$dir/js/jquery.js");
	copy("$cacti_root_path/include/js/jquery-ui.js", "$dir/js/jquery-ui.js");
	copy("$cacti_root_path/include/js/jstree.js", "$dir/js/jstree.js");
	copy("$cacti_root_path/include/js/jquery.cookie.js", "$dir/js/jquery.cookie.js");
	copy("$cacti_root_path/include/js/jquery-ui.css", "$dir/js/jquery-ui.css");
}

function get_host_description($host_id) {
	$host = db_fetch_row("SELECT description FROM host WHERE id='".$host_id."'");
	return $host["description"];
}

function get_host_id($tree_item_id) {
	$graph_tree_item=db_fetch_row("SELECT host_id FROM graph_tree_items WHERE id='".$tree_item_id."'");
	return $graph_tree_item["host_id"];
}

function get_tree_name($tree_id) {
	$graph_tree=db_fetch_row("SELECT id, name FROM graph_tree WHERE id='".$tree_id."'");
	return $graph_tree["name"];
}

function get_tree_item_title($tree_item_id) {
	if (get_tree_item_type($tree_item_id) == "host")  {
		$tree_item=db_fetch_row("SELECT host_id FROM graph_tree_items WHERE id='".$tree_item_id."'");
		return get_host_description($tree_item["host_id"]);
	}else{
		$tree_item=db_fetch_row("SELECT title FROM graph_tree_items WHERE id='".$tree_item_id."'");
		return $tree_item["title"];
	}
}

/* clean_up_export_name - runs a string through a series of regular expressions designed to
     eliminate "bad" characters
   @arg $string - the string to modify/clean
   @returns - the modified string */
function clean_up_export_name($string) {
	$string = preg_replace("/[\s\ ]+/", "_", $string);
	$string = preg_replace("/[^a-zA-Z0-9_.]+/", "", $string);
	$string = preg_replace("/_{2,}/", "_", $string);

	return $string;
}

/* $path to the directory to delete or clean */
/* $deldir (optionnal parameter, true as default) delete the diretory (true) or just clean it (false) */
function del_directory($path, $deldir = true) {
	/* check if the directory name have a "/" at the end, add if not */
	if ($path[strlen($path)-1] != "/") {
		$path .= "/";
	}

	/* cascade through the directory structure(s) until they are all delected */
	if (is_dir($path)) {
		$d = opendir($path);
		while ($f = readdir($d)) {
			if ($f != "." && $f != "..") {
				$rf = $path . $f;

				/* if it is a directory, recursive call to the function */
				if (is_dir($rf)) {
					del_directory($rf);
				}else if (is_file($rf) && is_writable($rf)) {
					unlink($rf);
				}
			}
		}
		closedir($d);

		/* if $deldir is true, remove the directory */
		if ($deldir && is_writable($path)) {
			rmdir($path);
		}
	}
}

function check_remove($filename) {
	if (file_exists($filename) && is_writable($filename)) {
		unlink($filename);
	}
}

define("HTML_HEADER_TREE",
"<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.01 Transitional//EN\" \"http://www.w3.org/TR/html4/loose.dtd\">
<html>
<head>
	<meta http-equiv='X-UA-Compatible' content='edge'>
	<title>Cacti</title>
	<link rel='stylesheet' href='main.css' rel='stylesheet'>
	<link rel='stylesheet' href='./js/jquery-ui.css'>
	<link rel='stylesheet' href='./js/themes/default/style.css'>
	<meta http-equiv='Content-Type' content='text/html;charset=utf-8'>
	<meta http-equiv=Pragma content=no-cache>
	<meta http-equiv=cache-control content=no-cache>
	<script type='text/javascript' src='./js/jquery.js'></script>
	<script type='text/jsvascript' src='./js/jquery-ui.js'></script>
	<script type='text/javascript' src='./js/jstree.js'></script>
	<script type='text/javascript' src='./js/jquery.cookie.js'></script>
</head>
<body>
<table style='width:100%;height:100%;' cellspacing='0' cellpadding='0'>
	<tr style='height:37px;' bgcolor='#a9a9a9'>
		<td colspan='2' valign='bottom' nowrap>
			<table width='100%' cellspacing='0' cellpadding='0'>
				<tr>
					<td nowrap>
						&nbsp;<a href='http://www.cacti.net/'><img src='tab_cacti.gif' alt='Cacti - http://www.cacti.net/' align='middle' border='0'></a>
					</td>
					<td align='right'>
						<img src='cacti_backdrop.gif' align='middle'>
					</td>
				</tr>
			</table>
		</td>
	</tr>
	<tr style='height:2px;' colspan='2' bgcolor='#183c8f'>
		<td colspan='2'>
			<img src='transparent_line.gif' style='width:170px;height:2px;' border='0'><br>
		</td>
	</tr>
	<tr style='height:5px;' bgcolor='#e9e9e9'>
		<td colspan='2'>
			<table width='100%'>
				<tr>
					<td>
						Exported Graphs
					</td>
				</tr>
			</table>
		</td>
	</tr>
	<tr>
		<td bgcolor='#efefef' colspan='1' style='height:8px;background-image: url(shadow_gray.gif); background-repeat: repeat-x; border-right: #aaaaaa 1px solid;'>
			<img src='transparent_line.gif' width='200' style='height:2px;' border='0'><br>
		</td>
		<td bgcolor='#ffffff' colspan='1' style='height:8px;background-image: url(shadow.gif); background-repeat: repeat-x;'>
		</td>
	</tr>
	<tr>
		<td valign='top' style='padding: 5px; border-right: #aaaaaa 1px solid;' bgcolor='#efefef' width='200'>
			<table width='100%' border=0 cellpadding=0 cellspacing=0>
				<tr>
					<td id='navigation' valign='top' style='padding: 5px; border-right: #aaaaaa 1px solid;background-repeat:repeat-y;background-color:#efefef;' bgcolor='#efefef' width='200' class='noprint'>\n"
);

define("HTML_GRAPH_HEADER_ONE_TREE", "
	<table width='100%' style='background-color: #f5f5f5; border: 1px solid #bbbbbb;' align='center' cellpadding='3'>
		<tr bgcolor='#6d88ad'>
			<td width='390' colspan='3' class='textHeaderDark'>");

define("HTML_GRAPH_HEADER_TWO_TREE", "
		<tr>"
);

define("HTML_GRAPH_HEADER_ICE_TREE", "</td></tr></table><br><br>			<br>
		</td>
	</tr>
</table>\n");

define("HTML_GRAPH_FOOTER_TREE", "
	</tr></table>\n"
);

define("HTML_FOOTER_TREE", "
				</tr>
			</table>
		</td>
	</tr>
</table>
</body>
</html>"
);

/* HTML header for the Classic Presentation */
define("HTML_HEADER_CLASSIC", "
	<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.01 Transitional//EN\" \"http://www.w3.org/TR/html4/loose.dtd\">
	<html>
	<head>
		<title>cacti</title>
		<link href='main.css' rel='stylesheet'>
		<meta http-equiv='Content-Type' content='text/html;charset=utf-8'>
		<meta http-equiv=refresh content='300'; url='index.html'>
		<meta http-equiv=Pragma content=no-cache>
		<meta http-equiv=cache-control content=no-cache>
	</head>
	<body>
	<table width='100%' cellspacing='0' cellpadding='0'>
		<tr style='height:37px;' bgcolor='#a9a9a9'>
			<td valign='bottom' colspan='3' nowrap>
				<table width='100%' cellspacing='0' cellpadding='0'>
					<tr>
						<td valign='bottom'>
							&nbsp;<a href='http://www.cacti.net/'><img src='tab_cacti.gif' alt='Cacti - http://www.cacti.net/' align='middle' border='0'></a>
						</td>
						<td align='right'>
							<img src='cacti_backdrop.gif' align='middle'>
						</td>
					</tr>
				</table>
			</td>
		</tr>\n
		<tr style='height:2px;' bgcolor='#183c8f'>
			<td colspan='3'>
				<img src='transparent_line.gif' style='width:170px;height:2px;' border='0'><br>
			</td>
		</tr>\n
		<tr style='height:5px;' bgcolor='#e9e9e9'>
			<td colspan='3'>
				<table width='100%'>
					<tr>
						<td>
							Exported Graphs
						</td>
					</tr>
				</table>
			</td>
		</tr>\n
		<tr>
			<td colspan='3' style='height:8px;background-image: url(shadow.gif); background-repeat: repeat-x;' bgcolor='#ffffff'>

			</td>
		</tr>\n
	</table>

	<br>"
);

/* Traditional Graph Export Representation Graph Headers */
define("HTML_GRAPH_HEADER_ONE_CLASSIC", "
	<table width='100%' style='background-color: #f5f5f5; border: 1px solid #bbbbbb;' align='center'>
		<tr>
			<td class='textSubHeaderDark' colspan='" . read_config_option("export_num_columns") . "'>
				<table width='100%' cellspacing='0' cellpadding='3' border='0'>
					<tr>
						<td align='center' class='textHeaderDark'>"
);

define("HTML_GRAPH_HEADER_TWO_CLASSIC", "
					</tr>
				</table>
			</td>
		</tr>
		<tr>"
);

define("HTML_GRAPH_FOOTER_CLASSIC", "
	</tr></table>\n
	<br><br>"
);

define("HTML_FOOTER_CLASSIC", "
	<br>

	</body>
	</html>"
);

?>
