<?php
/*
 +-------------------------------------------------------------------------+
 | Copyright (C) 2004-2024 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/                                                   |
 +-------------------------------------------------------------------------+
*/

include('./include/auth.php');
include_once('./lib/vdef.php');

$actions = array(
	'1' => __('Delete'),
	'2' => __('Duplicate')
);

set_default_action();

switch (get_request_var('action')) {
	case 'save':
		vdef_form_save();

		break;
	case 'actions':
		vdef_form_actions();

		break;
	case 'item_remove_confirm':
		vdef_item_remove_confirm();

		break;
	case 'item_remove':
		vdef_item_remove();

		break;
	case 'item_movedown':
		get_filter_request_var('vdef_id');

		item_movedown();

		header('Location: vdef.php?action=edit&id=' . get_request_var('vdef_id'));

		break;
	case 'item_moveup':
		get_filter_request_var('vdef_id');

		item_moveup();

		header('Location: vdef.php?action=edit&id=' . get_request_var('vdef_id'));

		break;
	case 'item_edit':
		top_header();
		vdef_item_edit();
		bottom_footer();

		break;
	case 'edit':
		top_header();

		vdef_edit();

		bottom_footer();

		break;
	case 'ajax_dnd':
		vdef_item_dnd();

		break;

	default:
		top_header();

		vdef();

		bottom_footer();

		break;
}

function draw_vdef_preview($vdef_id) {
	?>
	<tr class='even'>
		<td style='padding:4px'>
			<pre>vdef=<?php print html_escape(get_vdef($vdef_id, true));?></pre>
		</td>
	</tr>
	<?php
}

function vdef_form_save() {
	if (isset_request_var('save_component_vdef')) {
		$save['id']   = get_filter_request_var('id');
		$save['hash'] = get_hash_vdef(get_request_var('id'));
		$save['name'] = form_input_validate(get_nfilter_request_var('name'), 'name', '', false, 3);

		if (!is_error_message()) {
			$vdef_id = sql_save($save, 'vdef');

			if ($vdef_id) {
				raise_message(1);
			} else {
				raise_message(2);
			}
		}

		header('Location: vdef.php?action=edit&id=' . (empty($vdef_id) ? get_request_var('id') : $vdef_id));
	} elseif (isset_request_var('save_component_item')) {
		$sequence = get_sequence(get_filter_request_var('id'), 'sequence', 'vdef_items', 'vdef_id=' . get_filter_request_var('vdef_id'));

		$save['id']       = get_filter_request_var('id');
		$save['hash']     = get_hash_vdef(get_request_var('id'), 'vdef_item');
		$save['vdef_id']  = get_filter_request_var('vdef_id');
		$save['sequence'] = $sequence;
		$save['type']     = get_nfilter_request_var('type');
		$save['value']    = get_nfilter_request_var('value');

		if (!is_error_message()) {
			$vdef_item_id = sql_save($save, 'vdef_items');

			if ($vdef_item_id) {
				raise_message(1);
			} else {
				raise_message(2);
			}
		}

		if (is_error_message()) {
			header('Location: vdef.php?action=item_edit&vdef_id=' . get_request_var('vdef_id') . '&id=' . (empty($vdef_item_id) ? get_request_var('id') : $vdef_item_id));
		} else {
			header('Location: vdef.php?action=edit&id=' . get_request_var('vdef_id'));
		}
	}
}

function duplicate_vdef($_vdef_id, $vdef_title) {
	global $fields_vdef_edit;

	$vdef       = db_fetch_row_prepared('SELECT * FROM vdef WHERE id = ?', array($_vdef_id));
	$vdef_items = db_fetch_assoc_prepared('SELECT * FROM vdef_items WHERE vdef_id = ?', array($_vdef_id));

	/* substitute the title variable */
	$vdef['name'] = str_replace('<vdef_title>', $vdef['name'], $vdef_title);

	/* create new entry: device_template */
	$save['id']   = 0;
	$save['hash'] = get_hash_vdef(0);

	$fields_vdef_edit = preset_vdef_form_list();

	foreach ($fields_vdef_edit as $field => $array) {
		if (!preg_match('/^hidden/', $array['method'])) {
			$save[$field] = $vdef[$field];
		}
	}

	$vdef_id = sql_save($save, 'vdef');

	/* create new entry(s): vdef_items */
	if (cacti_sizeof($vdef_items) > 0) {
		foreach ($vdef_items as $vdef_item) {
			unset($save);

			$save['id']       = 0;
			$save['hash']     = get_hash_vdef(0, 'vdef_item');
			$save['vdef_id']  = $vdef_id;
			$save['sequence'] = $vdef_item['sequence'];
			$save['type']     = $vdef_item['type'];
			$save['value']    = $vdef_item['value'];

			sql_save($save, 'vdef_items');
		}
	}
}

function vdef_form_actions() {
	global $actions;

	/* if we are to save this form, instead of display it */
	if (isset_request_var('selected_items')) {
		$selected_items = sanitize_unserialize_selected_items(get_nfilter_request_var('selected_items'));

		if ($selected_items != false) {
			if (get_nfilter_request_var('drp_action') === '1') { // delete
				/* do a referential integrity check */
				if (cacti_sizeof($selected_items)) {
					foreach ($selected_items as $vdef_id) {
						/* ================= input validation ================= */
						input_validate_input_number($vdef_id, 'vdef_id');
						/* ==================================================== */

						$vdef_ids[] = $vdef_id;
					}
				}

				if (isset($vdef_ids)) {
					db_execute('DELETE FROM vdef WHERE ' . array_to_sql_or($vdef_ids, 'id'));
					db_execute('DELETE FROM vdef_items WHERE ' . array_to_sql_or($vdef_ids, 'vdef_id'));
				}
			} elseif (get_nfilter_request_var('drp_action') === '2') { // duplicate
				for ($i=0;($i < cacti_count($selected_items));$i++) {
					/* ================= input validation ================= */
					input_validate_input_number($selected_items[$i], "selected_items[$i]");
					/* ==================================================== */

					duplicate_vdef($selected_items[$i], get_nfilter_request_var('title_format'));
				}
			}
		}

		header('Location: vdef.php');

		exit;
	} else {
		$ilist  = '';
		$iarray = array();

		/* loop through each of the graphs selected on the previous page and get more info about them */
		foreach ($_POST as $var => $val) {
			if (preg_match('/^chk_([0-9]+)$/', $var, $matches)) {
				/* ================= input validation ================= */
				input_validate_input_number($matches[1], 'chk[1]');
				/* ==================================================== */

				$ilist .= '<li>' . html_escape(db_fetch_cell_prepared('SELECT name FROM vdef WHERE id = ?', array($matches[1]))) . '</li>';
				$iarray[] = $matches[1];
			}
		}

		$form_data = array(
			'general' => array(
				'page'       => 'vdef.php',
				'actions'    => $actions,
				'optvar'     => 'drp_action',
				'item_array' => $iarray,
				'item_list'  => $ilist
			),
			'options' => array(
				1 => array(
					'smessage' => __('Click \'Continue\' to Delete the following VDEF.'),
					'pmessage' => __('Click \'Continue\' to Delete following VDEFs.'),
					'scont'    => __('Delete VDEF'),
					'pcont'    => __('Delete VDEFs')
				),
				2 => array(
					'smessage' => __('Click \'Continue\' to Duplicate the following VDEF.'),
					'pmessage' => __('Click \'Continue\' to Duplicate following VDEFs.'),
					'scont'    => __('Duplicate VDEF'),
					'pcont'    => __('Duplicate VDEFs'),
					'extra'    => array(
						'title_format' => array(
							'method'  => 'textbox',
							'title'   => __('Title Format:'),
							'default' => '<vdef_title>',
							'width'   => 25
						)
					)
				)
			)
		);

		form_continue_confirmation($form_data);
	}
}

function vdef_item_remove_confirm() {
	global $vdef_functions, $vdef_item_types, $custom_vdef_data_source_types;

	/* ================= input validation ================= */
	get_filter_request_var('id');
	get_filter_request_var('vdef_id');
	/* ==================================================== */

	/* sort the vdef functions */
	asort($vdef_functions);

	form_start('vdef.php');

	html_start_box('', '100%', '', '3', 'center', '');

	$vdef       = db_fetch_row_prepared('SELECT * FROM vdef WHERE id = ?', array(get_request_var('id')));
	$vdef_item  = db_fetch_row_prepared('SELECT * FROM vdef_items WHERE id = ?', array(get_request_var('vdef_id')));

	?>
	<tr>
		<td class='topBoxAlt'>
			<p><?php print __('Click \'Continue\' to delete the following VDEF\'s.'); ?></p>
			<p><?php print __esc('VDEF Name: %s', $vdef['name']);?><br>
			<em><?php $vdef_item_type = $vdef_item['type'];
	print $vdef_item_types[$vdef_item_type];?></em>: <strong><?php print html_escape(get_vdef_item_name($vdef_item['id']));?></strong></p>
		</td>
	</tr>
	<tr>
		<td class='right'>
			<input type='button' class='ui-button ui-corner-all ui-widget' id='cancel' value='<?php print __esc('Cancel');?>' onClick='$("#cdialog").dialog("close");' name='cancel'>
			<input type='button' class='ui-button ui-corner-all ui-widget' id='continue' value='<?php print __esc('Continue');?>' name='continue' title='<?php print __esc('Remove VDEF Item');?>'>
			<input type='hidden' id='my_vdef_id' value='<?php print $vdef['id'];?>'>
			<input type='hidden' id='my_id' value='<?php print $vdef_item['id'];?>'>
		</td>
	</tr>
	<?php

	html_end_box();

	form_end();

	?>
	<script type='text/javascript'>
	$(function() {
		$('#continue').click(function(data) {
			var options = {
				url: 'vdef.php?action=item_remove',
				funcEnd: 'removeVdefItemFinalize'
			}

			var data = {
				__csrf_magic: csrfMagicToken,
				vdef_id: <?php print get_request_var('vdef_id');?>,
				id: <?php print get_request_var('id');?>
			}
		});
	});

	function removeVdefItemFinalize(data) {
		$('#cdialog').dialog('close');
		loadUrl({url:'vdef.php?action=edit&id=<?php print get_request_var('id');?>'})
	}
	</script>
	<?php
}

function vdef_item_remove() {
	/* ================= input validation ================= */
	get_filter_request_var('vdef_id');
	/* ==================================================== */

	db_execute_prepared('DELETE FROM vdef_items
		WHERE id = ?',
		array(get_request_var('id')));
}

function vdef_item_edit() {
	global $vdef_functions, $vdef_item_types, $custom_vdef_data_source_types;

	/* ================= input validation ================= */
	get_filter_request_var('id');
	get_filter_request_var('vdef_id');
	get_filter_request_var('type_select');
	/* ==================================================== */

	/* sort the vdef functions */
	asort($vdef_functions);

	if (!isempty_request_var('id')) {
		$vdef = db_fetch_row_prepared('SELECT *
			FROM vdef_items
			WHERE id = ?',
			array(get_request_var('id')));

		if (cacti_sizeof($vdef)) {
			$current_type          = $vdef['type'];
			$values[$current_type] = $vdef['value'];
		}
	} else {
		$vdef = array();
	}

	html_start_box(__('VDEF Preview'), '100%', '', '3', 'center', '');
	draw_vdef_preview(get_request_var('vdef_id'));
	html_end_box();

	if (!isempty_request_var('vdef_id')) {
		$name = db_fetch_cell_prepared('SELECT name
			FROM vdef
			WHERE id = ?',
			array(get_request_var('vdef_id')));

		$header_label = __esc('VDEF Items [edit: %s]', $name);
	} else {
		$header_label = __('VDEF Items [new]');
	}

	form_start('vdef.php', 'chk');

	html_start_box($header_label, '100%', '', '3', 'center', '');

	if (isset_request_var('type_select')) {
		$current_type = get_request_var('type_select');
	} elseif (isset($vdef['type'])) {
		$current_type = $vdef['type'];
	} else {
		$current_type = CVDEF_ITEM_TYPE_FUNCTION;
	}

	$form_vdef = array(
		'type_select' => array(
			'method'        => 'drop_array',
			'friendly_name' => __('VDEF Item Type'),
			'description'   => __('Choose what type of VDEF item this is.'),
			'value'         => $current_type,
			'array'         => $vdef_item_types
		),
		'value' => array(
			'method'        => 'drop_array',
			'friendly_name' => __('VDEF Item Value'),
			'description'   => __('Enter a value for this VDEF item.'),
			'value'         => (isset($vdef['value']) ? $vdef['value']:'')
		),
		'id' => array(
			'method'        => 'hidden',
			'value'         => isset_request_var('id') ?  get_request_var('id') : '0',
		),
		'type' => array(
			'method'        => 'hidden',
			'value'         => $current_type
		),
		'vdef_id' => array(
			'method'        => 'hidden',
			'value'         => get_request_var('vdef_id')
		),
		'save_component_item' => array(
			'method'        => 'hidden',
			'value'         => '1'
		)
	);

	switch ($current_type) {
		case '1':
			$form_vdef['value']['array'] = $vdef_functions;

			break;
		case '4':
			$form_vdef['value']['array'] = $custom_vdef_data_source_types;

			break;
		case '6':
			$form_vdef['value']['method']     = 'textbox';
			$form_vdef['value']['max_length'] = '255';
			$form_vdef['value']['size']       = '30';

			break;
	}

	draw_edit_form(
		array(
			'config' => array('no_form_tag' => true),
			'fields' => inject_form_variables($form_vdef, $vdef)
		)
	);

	?>
	<script type='text/javascript'>
	$(function() {
		$('#type_select').unbind().change(function() {
			strURL  = 'vdef.php?action=item_edit';
			strURL += '&id=' + $('#id').val();
			strURL += '&vdef_id=' + $('#vdef_id').val();
			strURL += '&type_select=' + $('#type_select').val();
			loadUrl({url:strURL})
		});
	});
	</script>
	<?php

	html_end_box();

	form_save_button('vdef.php?action=edit&id=' . get_request_var('vdef_id'));
}

function item_movedown() {
	/* ================= input validation ================= */
	get_filter_request_var('id');
	get_filter_request_var('vdef_id');
	/* ==================================================== */

	move_item_down('vdef_items', get_request_var('id'), 'vdef_id=' . get_request_var('vdef_id'));
}

function item_moveup() {
	/* ================= input validation ================= */
	get_filter_request_var('id');
	get_filter_request_var('vdef_id');
	/* ==================================================== */

	move_item_up('vdef_items', get_request_var('id'), 'vdef_id=' . get_request_var('vdef_id'));
}

function vdef_item_dnd() {
	/* ================= Input validation ================= */
	get_filter_request_var('id');
	/* ================= Input validation ================= */

	$continue = true;

	if (isset_request_var('vdef_item') && is_array(get_nfilter_request_var('vdef_item'))) {
		$vdef_ids = get_nfilter_request_var('vdef_item');

		if (cacti_sizeof($vdef_ids)) {
			$sequence = 1;

			foreach ($vdef_ids as $vdef_id) {
				$vdef_id = str_replace('line', '', $vdef_id);
				input_validate_input_number($vdef_id, 'vdef_id');

				db_execute_prepared('UPDATE vdef_items
					SET sequence = ?
					WHERE id = ?',
					array($sequence, $vdef_id));

				$sequence++;
			}
		}
	}

	header('Location: vdef.php?action=edit&id=' . get_request_var('id'));
}

function vdef_edit() {
	global $vdef_item_types;

	/* ================= input validation ================= */
	get_filter_request_var('id');
	/* ==================================================== */

	if (!isempty_request_var('id')) {
		$vdef = db_fetch_row_prepared('SELECT *
			FROM vdef
			WHERE id = ?',
			array(get_request_var('id')));

		$header_label = __esc('VDEFs [edit: %s]', $vdef['name']);
	} else {
		$header_label = __('VDEFs [new]');
	}

	form_start('vdef.php', 'vdef_edit');

	html_start_box($header_label, '100%', true, '3', 'center', '');

	$preset_vdef_form_list = preset_vdef_form_list();
	draw_edit_form(
		array(
			'config' => array('no_form_tag' => true),
			'fields' => inject_form_variables($preset_vdef_form_list, (isset($vdef) ? $vdef : array()))
		)
	);

	html_end_box(true, true);

	form_hidden_box('id', (isset($vdef['id']) ? $vdef['id'] : '0'), '');
	form_hidden_box('save_component_vdef', '1', '');

	if (!isempty_request_var('id')) {
		html_start_box('', '100%', '', '3', 'center', '');
		draw_vdef_preview(get_request_var('id'));
		html_end_box();

		html_start_box(__('VDEF Items'), '100%', '', '3', 'center', 'vdef.php?action=item_edit&vdef_id=' . $vdef['id']);

		$header_items = array(
			array('display' => __('Item'), 'align' => 'left'),
			array('display' => __('Item Value'), 'align' => 'left')
		);

		html_header($header_items, 2);

		$vdef_items = db_fetch_assoc_prepared('SELECT *
			FROM vdef_items
			WHERE vdef_id = ?
			ORDER BY sequence',
			array(get_request_var('id')));

		$i           = 1;
		$total_items = cacti_sizeof($vdef_items);

		if (cacti_sizeof($vdef_items)) {
			foreach ($vdef_items as $vdef_item) {
				form_alternate_row('line' . $vdef_item['id'], true, true);
				?>
				<td>
					<a class='linkEditMain' href='<?php print html_escape('vdef.php?action=item_edit&id=' . $vdef_item['id'] . '&vdef_id=' . $vdef['id']);?>'><?php print __('Item #%d', $i);?></a>
				</td>
				<td>
					<em><?php $vdef_item_type = $vdef_item['type'];
				print $vdef_item_types[$vdef_item_type];?></em>: <strong><?php print html_escape(get_vdef_item_name($vdef_item['id']));?></strong>
				</td>
				<td class='right'>
					<?php
				if (read_config_option('drag_and_drop') == '') {
					if ($i < $total_items && $total_items > 1) {
						print '<a class="pic fa fa-caret-down moveArrow" href="' . html_escape('vdef.php?action=item_movedown&id=' . $vdef_item['id'] . '&vdef_id=' . $vdef_item['vdef_id']) . '" title="' . __esc('Move Down') . '"></a>';
					} else {
						print '<span class="moveArrowNone"></span>';
					}

					if ($i > 1 && $i <= $total_items) {
						print '<a class="pic fa fa-caret-up moveArrow" href="' . html_escape('vdef.php?action=item_moveup&id=' . $vdef_item['id'] .	'&vdef_id=' . $vdef_item['vdef_id']) . '" title="' . __esc('Move Up') . '"></a>';
					} else {
						print '<span class="moveArrowNone"></span>';
					}
				}
				?>
					<a id='<?php print $vdef['id'] . '_' . $vdef_item['id'];?>' class='delete deleteMarker fa fa-times' title='<?php print __esc('Delete VDEF Item');?>'></a>
				</td>
				<?php

				form_end_row();

				$i++;
			}
		}

		html_end_box();
	}

	form_save_button('vdef.php', 'return');

	?>
	<script type='text/javascript'>

	$(function() {
		$('#vdef_edit3').find('.cactiTable').attr('id', 'vdef_item');
		$('.cdialog').remove();
		$('#main').append("<div class='cdialog' id='cdialog'></div>");

		<?php if (read_config_option('drag_and_drop') == 'on') { ?>
		$('#vdef_item').unbind().tableDnD({
			onDrop: function(table, row) {
				loadUrl({url:'vdef.php?action=ajax_dnd&id=<?php isset_request_var('id') ? print get_request_var('id') : print 0;?>&'+$.tableDnD.serialize()})
			}
		});
		<?php } ?>

		$('.delete').unbind().click(function (event) {
			event.preventDefault();

			id = $(this).attr('id').split('_');
			request = 'vdef.php?action=item_remove_confirm&id='+id[0]+'&vdef_id='+id[1];
			$.get(request)
				.done(function(data) {
					$('#cdialog').html(data);

					applySkin();

					$('#continue').off('click').on('click', function(data) {
						$.post('vdef.php?action=item_remove', {
							__csrf_magic: csrfMagicToken,
							vdef_id: $('#my_vdef_id').val(),
							id: $('#my_id').val()
						}).done(function(data) {
							$('#cdialog').dialog('close');
							loadUrl({url:'vdef.php?action=edit&id='+$('#my_vdef_id').val()});
						});
					});

					$('#cdialog').dialog({
						title: '<?php print __esc('Delete VDEF Item');?>',
						close: function () { $('.delete').blur(); $('.selectable').removeClass('selected'); },
						minHeight: 80,
						minWidth: 500
					});
				})
				.fail(function(data) {
					getPresentHTTPError(data);
				});
		}).css('cursor', 'pointer');
	});

	</script>
	<?php
}

function vdef_filter() {
	global $item_rows;

	html_start_box(__('VDEFs'), '100%', '', '3', 'center', 'vdef.php?action=edit');
	?>
	<tr class='even'>
		<td>
			<form id='form_vdef' action='vdef.php'>
			<table class='filterTable'>
				<tr>
					<td>
						<?php print __('Search');?>
					</td>
					<td>
						<input type='text' class='ui-state-default ui-corner-all' id='filter' size='25' value='<?php print html_escape_request_var('filter');?>'>
					</td>
					<td>
						<?php print __('VDEFs');?>
					</td>
					<td>
						<select id='rows' onChange='applyFilter()'>
							<option value='-1'<?php print(get_request_var('rows') == '-1' ? ' selected>':'>') . __('Default');?></option>
							<?php
							if (cacti_sizeof($item_rows)) {
								foreach ($item_rows as $key => $value) {
									print "<option value='" . $key . "'";

									if (get_request_var('rows') == $key) {
										print ' selected';
									} print '>' . $value . "</option>";
								}
							}
	?>
						</select>
					</td>
                    <td>
						<span>
							<input type='checkbox' id='has_graphs' <?php print(get_request_var('has_graphs') == 'true' ? 'checked':'');?>>
                        	<label for='has_graphs'><?php print __('Has Graphs');?></label>
						</span>
                    </td>
					<td>
						<span>
							<input type='button' class='ui-button ui-corner-all ui-widget' value='<?php print __esc_x('Button: use filter settings', 'Go');?>' id='refresh'>
							<input type='button' class='ui-button ui-corner-all ui-widget' value='<?php print __esc_x('Button: reset filter settings', 'Clear');?>' id='clear'>
						</span>
					</td>
				</tr>
			</table>
			</form>
			<script type='text/javascript'>

			function applyFilter() {
				strURL  = 'vdef.php';
				strURL += '?filter='+$('#filter').val();
				strURL += '&rows='+$('#rows').val();
				strURL += '&has_graphs='+$('#has_graphs').is(':checked');
				loadUrl({url:strURL})
			}

			function clearFilter() {
				strURL = 'vdef.php?clear=1';
				loadUrl({url:strURL})
			}

			$(function() {
				$('#refresh').click(function() {
					applyFilter();
				});

				$('#has_graphs').click(function() {
					applyFilter();
				});

				$('#clear').click(function() {
					clearFilter();
				});

				$('#form_vdef').submit(function(event) {
					event.preventDefault();
					applyFilter();
				});
			});

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

	html_end_box();
}

function get_vdef_records(&$total_rows, &$rows) {
	/* form the 'where' clause for our main sql query */
	if (get_request_var('filter') != '') {
		$sql_where = 'WHERE name LIKE ' . db_qstr('%' . get_request_var('filter') . '%');
	} else {
		$sql_where = '';
	}

	if (get_request_var('has_graphs') == 'true') {
		$sql_having = 'HAVING graphs>0';
	} else {
		$sql_having = '';
	}

	$total_rows = db_fetch_cell("SELECT COUNT(*)
        FROM vdef
		$sql_having
        $sql_where");

	$sql_order = get_order_string();
	$sql_limit = ' LIMIT ' . ($rows * (get_request_var('page') - 1)) . ',' . $rows;

	return db_fetch_assoc("SELECT *
		FROM vdef
		$sql_where
		$sql_having
		$sql_order
		$sql_limit");
}

function vdef($refresh = true) {
	global $actions;

	/* ================= input validation and session storage ================= */
	$filters = array(
		'rows' => array(
			'filter'  => FILTER_VALIDATE_INT,
			'pageset' => true,
			'default' => '-1'
			),
		'page' => array(
			'filter'  => FILTER_VALIDATE_INT,
			'default' => '1'
			),
		'filter' => array(
			'filter'  => FILTER_DEFAULT,
			'pageset' => true,
			'default' => ''
			),
		'sort_column' => array(
			'filter'  => FILTER_CALLBACK,
			'default' => 'name',
			'options' => array('options' => 'sanitize_search_string')
			),
		'sort_direction' => array(
			'filter'  => FILTER_CALLBACK,
			'default' => 'ASC',
			'options' => array('options' => 'sanitize_search_string')
			),
		'has_graphs' => array(
			'filter'  => FILTER_VALIDATE_REGEXP,
			'options' => array('options' => array('regexp' => '(true|false)')),
			'pageset' => true,
			'default' => read_config_option('default_has') == 'on' ? 'true':'false'
			)
	);

	validate_store_request_vars($filters, 'sess_vdef');
	/* ================= input validation ================= */

	vdef_filter();

	$total_rows = 0;
	$vdefs      = array();

	if (get_request_var('rows') == '-1') {
		$rows = read_config_option('num_rows_table');
	} else {
		$rows = get_request_var('rows');
	}

	$vdefs = get_vdef_records($total_rows, $rows);

	$nav = html_nav_bar('vdef.php?filter=' . get_request_var('filter'), MAX_DISPLAY_PAGES, get_request_var('page'), $rows, $total_rows, 5, __('VDEFs'), 'page', 'main');

	form_start('vdef.php', 'chk');

	print $nav;

	html_start_box('', '100%', '', '3', 'center', '');

	$display_text = array(
		'name' => array(
			'display' => __('VDEF Name'),
			'align' => 'left',
			'sort' => 'ASC',
			'tip' => __esc('The name of this VDEF.')
		),
		'nosort' => array(
			'display' => __('Deletable'),
			'align' => 'right',
			'tip' => __esc('VDEFs that are in use cannot be Deleted. In use is defined as being referenced by a Graph or a Graph Template.')
		),
		'graphs' => array(
			'display' => __('Graphs Using'),
			'align' => 'right',
			'sort' => 'DESC',
			'tip' => __esc('The number of Graphs using this VDEF.')
		),
		'templates' => array(
			'display' => __('Templates Using'),
			'align' => 'right',
			'sort' => 'DESC',
			'tip' => __esc('The number of Graphs Templates using this VDEF.')
		)
	);

	html_header_sort_checkbox($display_text, get_request_var('sort_column'), get_request_var('sort_direction'), false);

	if (cacti_sizeof($vdefs)) {
		foreach ($vdefs as $vdef) {
			if ($vdef['graphs'] == 0 && $vdef['templates'] == 0) {
				$disabled = false;
			} else {
				$disabled = true;
			}

			form_alternate_row('line' . $vdef['id'], false, $disabled);
			form_selectable_cell(filter_value($vdef['name'], get_request_var('filter'), 'vdef.php?action=edit&id=' . $vdef['id']), $vdef['id']);
			form_selectable_cell($disabled ? __('No'):__('Yes'), $vdef['id'], '', 'right');
			form_selectable_cell(number_format_i18n($vdef['graphs'], '-1'), $vdef['id'], '', 'right');
			form_selectable_cell(number_format_i18n($vdef['templates'], '-1'), $vdef['id'], '', 'right');
			form_checkbox_cell($vdef['name'], $vdef['id'], $disabled);
			form_end_row();
		}
	} else {
		print "<tr class='tableRow'><td colspan='" . (cacti_sizeof($display_text) + 1) . "'><em>" . __('No VDEFs') . "</em></td></tr>";
	}

	html_end_box(false);

	if (cacti_sizeof($vdefs)) {
		print $nav;
	}

	/* draw the dropdown containing a list of available actions for this form */
	draw_actions_dropdown($actions);

	form_end();
}