<?php
/*
 +-------------------------------------------------------------------------+
 | Copyright (C) 2004-2017 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/                                                   |
 +-------------------------------------------------------------------------+
*/

$guest_account = true;
include('./include/auth.php');
include_once('./lib/rrd.php');

/* set default action */
set_default_action('view');

if (!isset_request_var('view_type')) { 
	set_request_var('view_type', '');
}

/* ================= input validation ================= */
get_filter_request_var('rra_id', FILTER_VALIDATE_REGEXP, array('options' => array('regexp' => '/^([0-9]+|all)$/')));
get_filter_request_var('local_graph_id');
get_filter_request_var('graph_end');
get_filter_request_var('graph_start');
get_filter_request_var('view_type', FILTER_VALIDATE_REGEXP, array('options' => array('regexp' => '/^([a-zA-Z0-9]+)$/')));
/* ==================================================== */

api_plugin_hook_function('graph');

include_once('./lib/html_tree.php');

top_graph_header();

if (!isset_request_var('rra_id')) {
	set_request_var('rra_id', 'all');
}

if (get_request_var('rra_id') == 'all' || isempty_request_var('rra_id')) {
	$sql_where = ' AND dspr.id IS NOT NULL';
} else {
	$sql_where = ' AND dspr.id=' . get_request_var('rra_id');
}

/* make sure the graph requested exists (sanity) */
if (!(db_fetch_cell_prepared('SELECT local_graph_id FROM graph_templates_graph WHERE local_graph_id = ?', array(get_request_var('local_graph_id'))))) {
	print "<strong><font class='txtErrorTextBox'>GRAPH DOES NOT EXIST</font></strong>"; 
	exit;
}

/* take graph permissions into account here */
if (!is_graph_allowed(get_request_var('local_graph_id'))) {
	header('Location: permission_denied.php');
	exit;
}

$graph_title = get_graph_title(get_request_var('local_graph_id'));

if (get_request_var('action') != 'properties') {
	print "<table width='100%' class='cactiTable'>";
}

$rras = get_associated_rras(get_request_var('local_graph_id'), $sql_where);

switch (get_request_var('action')) {
case 'view':
	api_plugin_hook_function('page_buttons',
		array(
			'lgid'   => get_request_var('local_graph_id'),
			'leafid' => '',//$leaf_id,
			'mode'   => 'mrtg',
			'rraid'  => get_request_var('rra_id')
		)
	);

	?>
	<tr class='tableHeader'>
		<td colspan='3' class='textHeaderDark'>
			<strong><?php print __('Viewing Graph');?></strong> '<?php print htmlspecialchars($graph_title, ENT_QUOTES);?>'
		<script type='text/javascript'>

		$(function() { 
			$('#navigation').show();
			$('#navigation_right').show();
		});

		</script>
		</td>
	</tr>
	<?php

	$graph = db_fetch_row_prepared('SELECT * FROM graph_templates_graph WHERE local_graph_id = ?', array(get_request_var('local_graph_id')));

	$i = 0;
	if (sizeof($rras)) {
		$graph_end   = time();
		foreach ($rras as $rra) {
			$graph_start = $graph_end - ($rra['step'] * $rra['rows'] * $rra['steps']);
			$aggregate_url = aggregate_build_children_url(get_request_var('local_graph_id'), $graph_start, $graph_end, $rra['id']);
			?>
			<tr>
				<td align='center'>
					<table>
						<tr>
							<td>
								<div class='graphWrapper' id='wrapper_<?php print $graph['local_graph_id'] . '_' . $rra['id'];?>' graph_id='<?php print $graph['local_graph_id'];?>' rra_id='<?php print $rra['id'];?>' graph_width='<?php print $graph['width'];?>' graph_height='<?php print $graph['height'];?>' graph_start='<?php print $graph_start;?>' graph_end='<?php print $graph_end;?>' title_font_size='<?php print ((read_user_setting("custom_fonts") == "on") ? read_user_setting("title_size") : read_config_option("title_size"));?>' style="min-height: <?php echo (1.2 * $graph["height"]) . "px"?>;"></div>
							</td>
							<td valign='top' style='padding: 3px;' class='noprint'>
								<a class='iconLink utils' href='#' role='link' id='graph_<?php print get_request_var('local_graph_id');?>_util' graph_start='<?php print $graph_start;?>' graph_end='<?php print $graph_end;?>' rra_id='<?php print $rra['id'];?>'><img class='drillDown' src='<?php print $config['url_path'] . "images/cog.png";?>' alt='' title='<?php print __('Graph Details, Zooming and Debugging Utilities');?>'></a></br>
								<a class='iconLink' href='<?php print htmlspecialchars($config['url_path'] . 'graph_xport.php?local_graph_id=' . get_request_var('local_graph_id') . '&rra_id=' . $rra['id'] . '&view_type=' . get_request_var('view_type') .  '&graph_start=' . $graph_start . '&graph_end=' . $graph_end);?>'><img src='<?php print $config['url_path'] . "images/table_go.png";?>' alt='' title='<?php print __('CSV Export');?>'></a><br>
								<?php if (read_config_option('realtime_enabled') == 'on') print "<a class='iconLink' href='#' onclick=\"window.open('".$config['url_path']."graph_realtime.php?top=0&left=0&local_graph_id=" . get_request_var('local_graph_id') . "', 'popup_" . get_request_var('local_graph_id') . "', 'toolbar=no,menubar=no,resizable=yes,location=no,scrollbars=no,status=no,titlebar=no,width=650,height=300');return false\"><img src='" . $config['url_path'] . "images/chart_curve_go.png' alt='' title='" . __('Real-time') . "'></a><br/>\n";?>
								<?php print ($aggregate_url != '' ? $aggregate_url:'')?>
								<?php api_plugin_hook('graph_buttons', array('hook' => 'view', 'local_graph_id' => get_request_var('local_graph_id'), 'rra' => $rra['id'], 'view_type' => get_request_var('view_type'))); ?>
							</td>
						</tr>
						<tr>
							<td colspan='2' align='center'>
								<strong><?php print htmlspecialchars($rra['name'], ENT_QUOTES);?></strong>
							</td>
						</tr>
					</table>
				</td>
			</tr>
			<?php
			$i++;
		}
		api_plugin_hook_function('tree_view_page_end');
	}
	?>
	<script type='text/javascript'>
	/* turn off the page refresh */
	var refreshMSeconds=9999999;

	function initializeGraph() {
		$('.graphWrapper').each(function() {
			graph_id=$(this).attr('graph_id');
			rra_id=$(this).attr('rra_id');
			graph_height=$(this).attr('graph_height');
			graph_width=$(this).attr('graph_width');
			graph_start=$(this).attr('graph_start');
			graph_end=$(this).attr('graph_end');

			$.getJSON(urlPath+'graph_json.php?'+
				'local_graph_id='+graph_id+
				'&graph_height='+graph_height+
				'&graph_start='+graph_start+
				'&graph_end='+graph_end+
				'&rra_id='+rra_id+
				'&graph_width='+graph_width+
				'&disable_cache=true'+
				<?php print (isset_request_var('thumbnails') && get_request_var('thumbnails') == 'true' ? "'&graph_nolegend=true'":"''");?>,
				function(data) {
					$('#wrapper_'+data.local_graph_id+'_'+data.rra_id).html("<img class='graphimage' id='graph_"+data.local_graph_id+"' src='data:image/"+data.type+";base64,"+data.image+"' graph_start='"+data.graph_start+"' graph_end='"+data.graph_end+"' graph_left='"+data.graph_left+"' graph_top='"+data.graph_top+"' graph_width='"+data.graph_width+"' graph_height='"+data.graph_height+"' width='"+data.image_width+"' height='"+data.image_height+"' image_width='"+data.image_width+"' image_height='"+data.image_height+"' value_min='"+data.value_min+"' value_max='"+data.value_max+"'>");
				});
		});

		$('a[id$="_util"]').unbind('click').click(function() {
			graph_id=$(this).attr('id').replace('graph_','').replace('_util','');
			rra_id=$(this).attr('rra_id');
			graph_start=$(this).attr('graph_start');
			graph_end=$(this).attr('graph_end');
			$.get('graph.php?action=zoom&header=false&local_graph_id='+graph_id+'&rra_id='+rra_id+'&graph_start='+graph_start+'&graph_end='+graph_end, function(data) {
				$('#main').html(data);
				$('#breadcrumbs').append('<li><a id="nav_util" href="#"><?php print __('Utility View');?></a></li>');
				applySkin();
			});
		});
	}

	$(function() { 
		initializeGraph();
		$('#navigation').show();
		$('#navigation_right').show();
	});
	</script>
	<?php

	break;
case 'zoom':
	/* find the maximum time span a graph can show */
	$max_timespan=1;
	if (sizeof($rras)) {
		foreach ($rras as $rra) {
			if ($rra['steps'] * $rra['rows'] * $rra['rrd_step'] > $max_timespan) {
				$max_timespan = $rra['steps'] * $rra['rows'] * $rra['rrd_step'];
			}
		}
	}

	/* fetch information for the current RRA */
	if (isset_request_var('rra_id') && get_request_var('rra_id') > 0) {
		$rra = db_fetch_row_prepared('SELECT dspr.id, step, steps, dspr.name, rows
			FROM data_source_profiles_rra AS dspr
			INNER JOIN data_source_profiles AS dsp
			ON dsp.id=dspr.data_source_profile_id
			WHERE dspr.id = ?', array(get_request_var('rra_id')));

		$rra['timespan'] = $rra['steps'] * $rra['step'] * $rra['rows'];
	} else {
		$rra = db_fetch_row_prepared('SELECT dspr.id, step, steps, dspr.name, rows
			FROM data_source_profiles_rra AS dspr
			INNER JOIN data_source_profiles AS dsp
			ON dsp.id=dspr.data_source_profile_id
			WHERE dspr.id = ?', array($rras[0]['id']));

		$rra['timespan'] = $rra['steps'] * $rra['step'] * $rra['rows'];
	}

	/* define the time span, which decides which rra to use */
	$timespan = -($rra['timespan']);

	/* find the step and how often this graph is updated with new data */
	$ds_step = db_fetch_cell_prepared('SELECT
		data_template_data.rrd_step
		FROM (data_template_data, data_template_rrd, graph_templates_item)
		WHERE graph_templates_item.task_item_id = data_template_rrd.id
		AND data_template_rrd.local_data_id = data_template_data.local_data_id
		AND graph_templates_item.local_graph_id = ?
		LIMIT 0,1', array(get_request_var('local_graph_id')));
	$ds_step = empty($ds_step) ? 300 : $ds_step;
	$seconds_between_graph_updates = ($ds_step * $rra['steps']);

	$now = time();

	if (isset_request_var('graph_end') && (get_request_var('graph_end') <= $now - $seconds_between_graph_updates)) {
		$graph_end = get_request_var('graph_end');
	} else {
		$graph_end = $now - $seconds_between_graph_updates;
	}

	if (isset_request_var('graph_start')) {
		if (($graph_end - get_request_var('graph_start'))>$max_timespan) {
			$graph_start = $now - $max_timespan;
		}else {
			$graph_start = get_request_var('graph_start');
		}
	} else {
		$graph_start = $now + $timespan;
	}

	/* required for zoom out function */
	if ($graph_start == $graph_end) {
		$graph_start--;
	}

	$graph = db_fetch_row_prepared('SELECT * FROM graph_templates_graph WHERE local_graph_id = ?', array(get_request_var('local_graph_id')));

	$graph_height = $graph['height'];
	$graph_width  = $graph['width'];

	if (read_user_setting('custom_fonts') == 'on' & read_user_setting('title_size') != '') {
		$title_font_size = read_user_setting('title_size');
	} elseif (read_config_option('title_size') != '') {
		$title_font_size = read_config_option('title_size');
	}else {
	 	$title_font_size = 10;
	}

	?>
	<tr class='tableHeader'>
		<td colspan='3' class='textHeaderDark'>
			<strong><?php print __('Graph Utility View');?></strong> '<?php print htmlspecialchars($graph_title);?>'
		</td>
	</tr>
	<tr class='even'>
		<td align='center'>
			<table>
				<tr>
					<td align='center'>
						<div class='graphWrapper' id='wrapper_<?php print $graph['local_graph_id']?>' graph_width='<?php print $graph['width'];?>' graph_height='<?php print $graph['height'];?>' title_font_size='<?php print ((read_user_setting("custom_fonts") == "on") ? read_user_setting("title_size") : read_config_option("title_size"));?>' style="min-height: <?php echo (1.2 * $graph["height"]) . "px"?>;"></div>
                            <?php print (read_user_setting("show_graph_title") == "on" ? "<span align='center'><strong>" . htmlspecialchars($graph["title_cache"]) . "</strong></span>" : "");?>
					</td>
					<td valign='top' style='align:left;padding-top: 3px;' class='noprint'>
						<a href='#' id='graph_<?php print $graph['local_graph_id'];?>_properties' class='iconLink hyperLink properties'> 
							<img class='drillDown' src='<?php print $config['url_path'] . "images/graph_properties.gif";?>' alt='' title='<?php print __('Graph Source/Properties');?>'>
						</a>
						<br>
						<a href='#' id='graph_<?php print $graph['local_graph_id'];?>_csv' class='iconLink hyperLink properties'> 
							<img class='drillDown' src='<?php print $config['url_path'] . "images/table_go.png";?>' alt='' title='<?php print __('Graph Data');?>'>
						</a>
						<br>
						<?php api_plugin_hook('graph_buttons', array('hook' => 'zoom', 'local_graph_id' => get_request_var('local_graph_id'), 'rra' =>  get_request_var('rra_id'), 'view_type' => get_request_var('view_type'))); ?>
					</td>
				</tr>
				<tr>
				</tr>
			</table>
		</td>
	</tr>
	<tr>
		<td style='display:none;'>
			<input type='button' name='button_refresh_x' value='<?php print __('Refresh');?>' onClick='refreshGraph()'>
			<input type='textbox' id='date1' value=''>
			<input type='textbox' id='date2' value=''>
			<input type='textbox' id='graph_start' value='<?php print $graph_start;?>'>
			<input type='textbox' id='graph_end' value='<?php print $graph_end;?>'>
		</td>
	</tr>
	<tr class='odd'>
		<td id='data'></td>
	</tr>
	<script type='text/javascript'>
	var graph_id=<?php print get_request_var('local_graph_id') . ";\n";?>
	var props_on=false;
	var graph_data_on=true;

	/* turn off the page refresh */
	var refreshMSeconds=9999999;

	function refreshGraph() {
		$('#graph_start').val(getTimestampFromDate($('#date1').val()));
		$('#graph_end').val(getTimestampFromDate($('#date2').val()));
		now = Math.floor($.now()/1000);
		if ($('#graph_end').val() > now) {
			$('#graph_end').val(now);
		}
		
		initializeGraph();
	}

	function graphProperties() {
		$.get('graph.php?action=properties&header=false&local_graph_id='+graph_id+'&rra_id=<?php print get_request_var('rra_id');?>&view_type=<?php print get_request_var('view_type');?>&graph_start='+$('#graph_start').val()+'&graph_end='+$('#graph_end').val(), function(data) {
			$('#data').html(data);
		});
		props_on = true;
		graph_data_on = false;
	}

	function graphXport() {
		$.get(urlPath+'graph_xport.php?local_graph_id='+graph_id+'&rra_id=0&format=table&graph_start='+$('#graph_start').val()+'&graph_end='+$('#graph_end').val(), function(data) {
			$('#data').html(data);

			$('.download').click(function(event) {
				event.preventDefault;
				graph_id=$(this).attr('id').replace('graph_','');
				document.location = urlPath+'graph_xport.php?local_graph_id='+graph_id+'&rra_id=0&view_type=tree&graph_start='+$('#graph_start').val()+'&graph_end='+$('#graph_end').val();
			});
		});
		props_on = false;
		graph_data_on = true;
	}

	function initializeGraph() {
		$('.graphWrapper').each(function() {
			graph_id=$(this).attr('id').replace('wrapper_','');
			graph_height=$(this).attr('graph_height');
			graph_width=$(this).attr('graph_width');

			$.getJSON(urlPath+'graph_json.php?rra_id=0'+
				'&local_graph_id='+graph_id+
				'&graph_start='+$('#graph_start').val()+
				'&graph_end='+$('#graph_end').val()+
				'&graph_height='+graph_height+
				'&graph_width='+graph_width+
				'&disable_cache=true'+
				<?php print (isset_request_var('thumbnails') && get_request_var('thumbnails') == 'true' ? "'&graph_nolegend=true'":"''");?>,
				function(data) {
					$('#wrapper_'+data.local_graph_id).html("<img class='graphimage' id='graph_"+data.local_graph_id+"' src='data:image/"+data.type+";base64,"+data.image+"' graph_start='"+data.graph_start+"' graph_end='"+data.graph_end+"' graph_left='"+data.graph_left+"' graph_top='"+data.graph_top+"' graph_width='"+data.graph_width+"' graph_height='"+data.graph_height+"' width='"+data.image_width+"' height='"+data.image_height+"' image_width='"+data.image_width+"' image_height='"+data.image_height+"' value_min='"+data.value_min+"' value_max='"+data.value_max+"'>");

					$('#graph_start').val(data.graph_start);
					$('#graph_end').val(data.graph_end);

					$("#graph_"+data.local_graph_id).zoom({
						inputfieldStartTime : 'date1',
						inputfieldEndTime : 'date2',
						serverTimeOffset : <?php print date('Z') . "\n";?>
					});

					if (graph_data_on) {
						graphXport();
					}else if (props_on) {
						graphProperties();
					}
				});
		});

		$('a[id$="_properties"]').unbind('click').click(function() {
			graphProperties();
		});

		$('a[id$="_csv"]').unbind('click').click(function() {
			graphXport();
		});
	}

	$(function() { 
		initializeGraph();
		$('#navigation').show();
		$('#navigation_right').show();
	});

	</script>
	<?php

	break;
case 'properties':
	$graph_data_array['print_source'] = true;

	/* override: graph start time (unix time) */
	if (!isempty_request_var('graph_start')) {
		$graph_data_array['graph_start'] = get_request_var('graph_start');
	}

	/* override: graph end time (unix time) */
	if (!isempty_request_var('graph_end')) {
		$graph_data_array['graph_end'] = get_request_var('graph_end');
	}
	
	$graph_data_array['output_flag'] = RRDTOOL_OUTPUT_STDERR;
	$graph_data_array['print_source'] = 1;
	
	print "<table align='center' width='100%' class='cactiTable'<tr><td>\n";
	print "<table class='cactiTable' width='100%'>\n";
	print "<tr class='tableHeader'><td colspan='3' class='linkOverDark' style='font-weight:bold;'>" . __('RRDtool Graph Syntax') . "</td></tr>\n";
	print "<tr><td><pre>\n";
	print "<span class='textInfo'>" . __('RRDTool Command:') . "</span><br>";
	print @rrdtool_function_graph(get_request_var('local_graph_id'), get_request_var('rra_id'), $graph_data_array);
	unset($graph_data_array['print_source']);
	print "<span class='textInfo'>" . __('RRDTool Says:') . "</span><br>";
	print @rrdtool_function_graph(get_request_var('local_graph_id'), get_request_var('rra_id'), $graph_data_array);
	print "</pre></td></tr>\n";
	print "</table></td></tr></table>\n";
	exit;
	break;
}

print '</table>';

bottom_footer();

