<?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/                                                   |
 +-------------------------------------------------------------------------+
*/

function graph_template_to_xml($graph_template_id) {
	global $struct_graph, $fields_graph_template_input_edit, $struct_graph_item, $export_errors;

	$hash['graph_template'] = get_hash_version('graph_template') . get_hash_graph_template($graph_template_id);
	$xml_text = '';

	$graph_template        = db_fetch_row_prepared('SELECT id, name FROM graph_templates WHERE id = ?', array($graph_template_id));
	$graph_template_graph  = db_fetch_row_prepared('SELECT * FROM graph_templates_graph WHERE graph_template_id = ? AND local_graph_id=0 ORDER BY id', array($graph_template_id));

	$graph_template_items  = db_fetch_assoc_prepared('SELECT * FROM graph_templates_item WHERE graph_template_id = ? AND local_graph_id=0 ORDER BY sequence', array($graph_template_id));
	$graph_template_inputs = db_fetch_assoc_prepared('SELECT * FROM graph_template_input WHERE graph_template_id = ? ORDER BY hash', array($graph_template_id));

	if ((empty($graph_template['id'])) || (empty($graph_template_graph['id']))) {
		$export_errors++;
		raise_message(30);
		cacti_log('ERROR: Invalid Graph Template found in Database for Template ' . $graph_template['name'] . '[' . $graph_template['id'] . '] GTGid: ' . $graph_template_graph['id'] . '.  Please run database repair script to identify and/or correct.', false, 'WEBUI');
		return;
	}

	$xml_text .= '<hash_' . $hash['graph_template'] . ">\n\t<name>" . xml_character_encode($graph_template['name']) . "</name>\n\t<graph>\n";

	/* XML Branch: <graph> */
	reset($struct_graph);
	while (list($field_name, $field_array) = each($struct_graph)) {
		if ($field_array['method'] != 'spacer') {
			$xml_text .= "\t\t<t_$field_name>" . xml_character_encode($graph_template_graph{'t_' . $field_name}) . "</t_$field_name>\n";
			$xml_text .= "\t\t<$field_name>" . xml_character_encode($graph_template_graph{$field_name}) . "</$field_name>\n";
		}
	}

	$xml_text .= "\t</graph>\n";

	/* XML Branch: <items> */

	$xml_text .= "\t<items>\n";

	$i = 0;
	if (sizeof($graph_template_items) > 0) {
	foreach ($graph_template_items as $item) {
		$hash['graph_template_item'] = get_hash_version('graph_template_item') . get_hash_graph_template($item['id'], 'graph_template_item');

		$xml_text .= "\t\t<hash_" . $hash['graph_template_item'] . ">\n";

		reset($struct_graph_item);
		while (list($field_name, $field_array) = each($struct_graph_item)) {
			if (($field_name == 'task_item_id') && (!empty($item{$field_name}))) {
				$xml_text .= "\t\t\t<$field_name>hash_" . get_hash_version('data_template_item') . get_hash_data_template($item{$field_name}, 'data_template_item') . "</$field_name>\n";
			}elseif (($field_name == 'cdef_id') && (!empty($item{$field_name}))) {
				$xml_text .= "\t\t\t<$field_name>hash_" . get_hash_version('cdef') . get_hash_cdef($item{$field_name}) . "</$field_name>\n";
			}elseif (($field_name == 'vdef_id') && (!empty($item{$field_name}))) {
				$xml_text .= "\t\t\t<$field_name>hash_" . get_hash_version('vdef') . get_hash_vdef($item{$field_name}) . "</$field_name>\n";
			}elseif (($field_name == 'gprint_id') && (!empty($item{$field_name}))) {
				$xml_text .= "\t\t\t<$field_name>hash_" . get_hash_version('gprint_preset') . get_hash_gprint($item{$field_name}) . "</$field_name>\n";
			}elseif (($field_name == 'color_id') && (!empty($item{$field_name}))) {
				$xml_text .= "\t\t\t<$field_name>" . db_fetch_cell_prepared('SELECT hex FROM colors WHERE id = ?', array($item[$field_name])) . "</$field_name>\n";
			}else{
				$xml_text .= "\t\t\t<$field_name>" . xml_character_encode($item{$field_name}) . "</$field_name>\n";
			}
		}

		$xml_text .= "\t\t</hash_" . $hash['graph_template_item'] . ">\n";

		$i++;
	}
	}

	$xml_text .= "\t</items>\n";

	/* XML Branch: <inputs> */

	$xml_text .= "\t<inputs>\n";

	$i = 0;
	if (sizeof($graph_template_inputs) > 0) {
	foreach ($graph_template_inputs as $item) {
		$hash['graph_template_input'] = get_hash_version('graph_template_input') . get_hash_graph_template($item['id'], 'graph_template_input');

		$xml_text .= "\t\t<hash_" . $hash['graph_template_input'] . ">\n";

		reset($fields_graph_template_input_edit);
		while (list($field_name, $field_array) = each($fields_graph_template_input_edit)) {
			if (($field_array['method'] != 'hidden_zero') && ($field_array['method'] != 'hidden')) {
				$xml_text .= "\t\t\t<$field_name>" . xml_character_encode($item{$field_name}) . "</$field_name>\n";
			}
		}

		$graph_template_input_items = db_fetch_assoc_prepared('SELECT graph_template_item_id FROM graph_template_input_defs WHERE graph_template_input_id = ?', array($item['id']));

		$xml_text .= "\t\t\t<items>";

		$j = 0;
		if (sizeof($graph_template_input_items) > 0) {
		foreach ($graph_template_input_items as $item2) {
			$xml_text .= 'hash_' . get_hash_version('graph_template') . get_hash_graph_template($item2['graph_template_item_id'], 'graph_template_item');

			if (($j+1) < sizeof($graph_template_input_items)) {
				$xml_text .= '|';
			}

			$j++;
		}
		}

		$xml_text .= "</items>\n";
		$xml_text .= "\t\t</hash_" . $hash['graph_template_input'] . ">\n";

		$i++;
	}
	}

	$xml_text .= "\t</inputs>\n";
	$xml_text .= '</hash_' . $hash['graph_template'] . '>';

	return $xml_text;
}

function data_template_to_xml($data_template_id) {
	global $struct_data_source, $struct_data_source_item, $export_errors;

	$hash['data_template'] = get_hash_version('data_template') . get_hash_data_template($data_template_id);
	$xml_text = '';

	$data_template          = db_fetch_row_prepared('SELECT id, name FROM data_template WHERE id = ?', array($data_template_id));
	$data_template_data     = db_fetch_row_prepared('SELECT * FROM data_template_data WHERE data_template_id = ? AND local_data_id=0', array($data_template_id));

	$data_template_rrd      = db_fetch_assoc_prepared('SELECT * FROM data_template_rrd WHERE data_template_id = ? AND local_data_id=0 ORDER BY hash', array($data_template_id));
	$data_input_data        = db_fetch_assoc_prepared('SELECT * FROM data_input_data WHERE data_template_data_id = ? ORDER BY data_input_field_id', array($data_template_data['id']));

	if ((empty($data_template['id'])) || (empty($data_template_data['id']))) {
		$export_errors++;
		raise_message(27);
		cacti_log('ERROR: Invalid Data Template found in Database.  Please run database repair script to identify and/or correct.', false, 'WEBUI');
		return;
	}

	$xml_text .= '<hash_' . $hash['data_template'] . ">\n\t<name>" . xml_character_encode($data_template['name']) . "</name>\n\t<ds>\n";

	/* XML Branch: <ds> */
	reset($struct_data_source);
	while (list($field_name, $field_array) = each($struct_data_source)) {
		if (isset($data_template_data{'t_' . $field_name})) {
			$xml_text .= "\t\t<t_$field_name>" . xml_character_encode($data_template_data{'t_' . $field_name}) . "</t_$field_name>\n";
		}

		if (($field_name == 'data_input_id') && (!empty($data_template_data{$field_name}))) {
			$xml_text .= "\t\t<$field_name>hash_" . get_hash_version('data_input_method') . get_hash_data_input($data_template_data{$field_name}) . "</$field_name>\n";
		}elseif (($field_name == 'data_source_profile_id') && (!empty($data_template_data{$field_name}))) {
			$xml_text .= "\t\t<$field_name>hash_" . get_hash_version('data_source_profile') . get_hash_data_source_profile($data_template_data{$field_name}) . "</$field_name>\n";
		}else{
			if (isset($data_template_data{$field_name})) {
				$xml_text .= "\t\t<$field_name>" . xml_character_encode($data_template_data{$field_name}) . "</$field_name>\n";
			}
		}
	}

	$xml_text .= "\t</ds>\n";

	/* XML Branch: <items> */

	$xml_text .= "\t<items>\n";

	$i = 0;
	if (sizeof($data_template_rrd) > 0) {
	foreach ($data_template_rrd as $item) {
		$hash['data_template_item'] = get_hash_version('data_template_item') . get_hash_data_template($item['id'], 'data_template_item');

		$xml_text .= "\t\t<hash_" . $hash['data_template_item'] . ">\n";

		reset($struct_data_source_item);
		while (list($field_name, $field_array) = each($struct_data_source_item)) {
			if (isset($item{'t_' . $field_name})) {
				$xml_text .= "\t\t\t<t_$field_name>" . xml_character_encode($item{'t_' . $field_name}) . "</t_$field_name>\n";
			}

			if (($field_name == 'data_input_field_id') && (!empty($item{$field_name}))) {
				$xml_text .= "\t\t\t<$field_name>hash_" . get_hash_version('data_input_field') . get_hash_data_input($item{$field_name}, 'data_input_field') . "</$field_name>\n";
			}else{
				if (isset($item{$field_name})) {
					$xml_text .= "\t\t\t<$field_name>" . xml_character_encode($item{$field_name}) . "</$field_name>\n";
				}
			}
		}

		$xml_text .= "\t\t</hash_" . $hash['data_template_item'] . ">\n";

		$i++;
	}
	}

	$xml_text .= "\t</items>\n";

	/* XML Branch: <data> */

	$xml_text .= "\t<data>\n";

	$i = 0;
	if (sizeof($data_input_data) > 0) {
	foreach ($data_input_data as $item) {
		$xml_text .= "\t\t<item_" . str_pad(strval($i), 3, '0', STR_PAD_LEFT) . ">\n";

		$xml_text .= "\t\t\t<data_input_field_id>hash_" . get_hash_version('data_input_field') . get_hash_data_input($item{'data_input_field_id'}, 'data_input_field') . "</data_input_field_id>\n";
		$xml_text .= "\t\t\t<t_value>" . xml_character_encode($item{'t_value'}) . "</t_value>\n";
		$xml_text .= "\t\t\t<value>" . xml_character_encode($item{'value'}) . "</value>\n";

		$xml_text .= "\t\t</item_" . str_pad(strval($i), 3, '0', STR_PAD_LEFT) . ">\n";

		$i++;
	}
	}

	$xml_text .= "\t</data>\n";

	$xml_text .= '</hash_' . $hash['data_template'] . '>';

	return $xml_text;
}

function data_input_method_to_xml($data_input_id) {
	global $fields_data_input_edit, $fields_data_input_field_edit, $fields_data_input_field_edit_1, $export_errors;

	/* aggregate field arrays */
	$fields_data_input_field_edit += $fields_data_input_field_edit_1;

	$hash['data_input_method'] = get_hash_version('data_input_method') . get_hash_data_input($data_input_id);
	$xml_text = '';

	$data_input        = db_fetch_row_prepared('SELECT * FROM data_input WHERE id = ?', array($data_input_id));
	$data_input_fields = db_fetch_assoc_prepared('SELECT * FROM data_input_fields WHERE data_input_id = ? ORDER BY hash', array($data_input_id));

	if (empty($data_input['id'])) {
		$export_errors++;
		raise_message(26);
		cacti_log('ERROR: Invalid Data Input Method found in Data Template.  Please run database repair script to identify and/or correct.', false, 'WEBUI');
		return;
	}

	$xml_text .= '<hash_' . $hash['data_input_method'] . ">\n";

	/* XML Branch: <> */
	reset($fields_data_input_edit);
	while (list($field_name, $field_array) = each($fields_data_input_edit)) {
		if (($field_array['method'] != 'hidden_zero') && ($field_array['method'] != 'hidden')) {
			$xml_text .= "\t<$field_name>" . xml_character_encode($data_input{$field_name}) . "</$field_name>\n";
		}
	}

	/* XML Branch: <fields> */

	$xml_text .= "\t<fields>\n";

	if (sizeof($data_input_fields) > 0) {
	foreach ($data_input_fields as $item) {
		$hash['data_input_field'] = get_hash_version('data_input_field') . get_hash_data_input($item['id'], 'data_input_field');

		$xml_text .= "\t\t<hash_" . $hash['data_input_field'] . ">\n";

		reset($fields_data_input_field_edit);
		while (list($field_name, $field_array) = each($fields_data_input_field_edit)) {
			if (($field_name == 'input_output') && (!empty($item{$field_name}))) {
				$xml_text .= "\t\t\t<$field_name>" . xml_character_encode($item{$field_name}) . "</$field_name>\n";
			}else{
				if (($field_array['method'] != 'hidden_zero') && ($field_array['method'] != 'hidden')) {
					$xml_text .= "\t\t\t<$field_name>" . xml_character_encode($item{$field_name}) . "</$field_name>\n";
				}
			}
		}

		$xml_text .= "\t\t</hash_" . $hash['data_input_field'] . ">\n";
	}
	}

	$xml_text .= "\t</fields>\n";

	$xml_text .= '</hash_' . $hash['data_input_method'] . '>';

	return $xml_text;
}


/** encode a cdef along with all cdef_items as XML text
 * @param int $cdef_id	- the id of the cdef that has to be encoded
 * @return string		- the resulting XML text
 */
function cdef_to_xml($cdef_id) {
	global $fields_cdef_edit, $export_errors;

	$fields_cdef_item_edit = array(
		'sequence' => 'sequence',
		'type' => 'type',
		'value' => 'value'
	);

	$hash['cdef'] = get_hash_version('cdef') . get_hash_cdef($cdef_id);
	$xml_text = '';

	$cdef       = db_fetch_row_prepared('SELECT * FROM cdef WHERE id = ?', array($cdef_id));
	$cdef_items = db_fetch_assoc_prepared('SELECT * FROM cdef_items WHERE cdef_id = ? ORDER BY sequence', array($cdef_id));

	if (empty($cdef['id'])) {
		$export_errors++;
		raise_message(25);
		cacti_log('ERROR: Invalid CDEF found in Graph Template.  Please run database repair script to identify and/or correct.', false, 'WEBUI');
		return;
	}

	$xml_text .= '<hash_' . $hash['cdef'] . ">\n";

	/* XML Branch: <> */
	reset($fields_cdef_edit);
	while (list($field_name, $field_array) = each($fields_cdef_edit)) {
		if (($field_array['method'] != 'hidden_zero') && ($field_array['method'] != 'hidden')) {
			$xml_text .= "\t<$field_name>" . xml_character_encode($cdef{$field_name}) . "</$field_name>\n";
		}
	}

	/* XML Branch: <items> */

	$xml_text .= "\t<items>\n";

	$i = 0;
	if (sizeof($cdef_items) > 0) {
	foreach ($cdef_items as $item) {
		$hash['cdef_item'] = get_hash_version('cdef_item') . get_hash_cdef($item['id'], 'cdef_item');

		$xml_text .= "\t\t<hash_" . $hash['cdef_item'] . ">\n";

		/* now do the encoding */
		reset($fields_cdef_item_edit);
		while (list($field_name, $field_array) = each($fields_cdef_item_edit)) {
			/* check, if an inherited cdef as to be encoded */
			if (($field_name == 'value') && ($item['type'] == '5')) {
				$xml_text .= "\t\t\t<$field_name>hash_" . get_hash_version('cdef') . get_hash_cdef($item{$field_name}) . "</$field_name>\n";
			} else {
				$xml_text .= "\t\t\t<$field_name>" . xml_character_encode($item{$field_name}) . "</$field_name>\n";				
			}
		}

		$xml_text .= "\t\t</hash_" . $hash['cdef_item'] . ">\n";

		$i++;
	}
	}

	$xml_text .= "\t</items>\n";
	$xml_text .= '</hash_' . $hash['cdef'] . '>';

	return $xml_text;
}

/** encode given VDEF as XML string
 * @param int $vdef_id  - id of VDEF
 * @return string       - XML text of encoded VDEF
 */
function vdef_to_xml($vdef_id) {
	global $config;
	
	include_once($config['library_path'] . '/vdef.php');

	$hash['vdef'] = get_hash_version('vdef') . get_hash_vdef($vdef_id);
	$xml_text = '';

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

	if (empty($vdef['id'])) {
		$err_msg = 'Invalid VDEF.';
		return $err_msg;
	}

	$xml_text .= '<hash_' . $hash['vdef'] . ">\n";

	/* XML Branch: <> */
	$fields_vdef_edit = preset_vdef_form_list();
	reset($fields_vdef_edit);
	while (list($field_name, $field_array) = each($fields_vdef_edit)) {
		if (($field_array['method'] != 'hidden_zero') && ($field_array['method'] != 'hidden') && ($field_array['method'] != 'spacer')) {
			$xml_text .= "\t<$field_name>" . xml_character_encode($vdef{$field_name}) . "</$field_name>\n";
		}
	}

	/* XML Branch: <items> */

	$xml_text .= "\t<items>\n";

	$i = 0;
	if (sizeof($vdef_items) > 0) {
	foreach ($vdef_items as $item) {
		$hash['vdef_item'] = get_hash_version('vdef_item') . get_hash_vdef($item['id'], 'vdef_item');

		$xml_text .= "\t\t<hash_" . $hash['vdef_item'] . ">\n";
		$fields_vdef_item_edit = preset_vdef_item_form_list();
		reset($fields_vdef_item_edit);
		while (list($field_name, $field_array) = each($fields_vdef_item_edit)) {
			if (($field_array['method'] != 'hidden_zero') && ($field_array['method'] != 'hidden') && ($field_array['method'] != 'spacer')) {
				$xml_text .= "\t\t\t<$field_name>" . xml_character_encode($item{$field_name}) . "</$field_name>\n";
			}
		}
		$xml_text .= "\t\t</hash_" . $hash['vdef_item'] . ">\n";

		$i++;
	}
	}

	$xml_text .= "\t</items>\n";
	$xml_text .= '</hash_' . $hash['vdef'] . '>';

	return $xml_text;
}

function gprint_preset_to_xml($gprint_preset_id) {
	global $fields_grprint_presets_edit, $export_errors;

	$hash = get_hash_version('gprint_preset') . get_hash_gprint($gprint_preset_id);
	$xml_text = '';

	$graph_templates_gprint = db_fetch_row_prepared('SELECT * FROM graph_templates_gprint WHERE id = ?', array($gprint_preset_id));

	if (empty($graph_templates_gprint['id'])) {
		$export_errors++;
		raise_message(24);
		cacti_log('ERROR: Invalid GPRINT preset found in Graph Template.  Please run database repair script to identify and/or correct.', false, 'WEBUI');
		return;
	}

	$xml_text .= "<hash_$hash>\n";

	/* XML Branch: <> */
	reset($fields_grprint_presets_edit);
	while (list($field_name, $field_array) = each($fields_grprint_presets_edit)) {
		if (($field_array['method'] != 'hidden_zero') && ($field_array['method'] != 'hidden')) {
			$xml_text .= "\t<$field_name>" . xml_character_encode($graph_templates_gprint{$field_name}) . "</$field_name>\n";
		}
	}

	$xml_text .= "</hash_$hash>";

	return $xml_text;
}

function data_source_profile_to_xml($data_source_profile_id) {
	global $fields_profile_edit, $fields_profile_rra_edit, $export_errors;

	$hash        = get_hash_version('data_source_profile') . get_hash_data_source_profile($data_source_profile_id);
	$xml_text    = '';

	$profile     = db_fetch_row_prepared('SELECT * FROM data_source_profiles WHERE id = ?', array($data_source_profile_id));

	$profile_cf  = db_fetch_assoc_prepared('SELECT * FROM data_source_profiles_cf WHERE data_source_profile_id = ? ORDER BY consolidation_function_id', array($data_source_profile_id));
	$profile_rra = db_fetch_assoc_prepared('SELECT * FROM data_source_profiles_rra WHERE data_source_profile_id = ? ORDER BY steps', array($data_source_profile_id));

	if (empty($profile['id'])) {
		$export_errors++;
		raise_message(23);
		cacti_log('ERROR: Invalid Data Source Profile found during Data Template export.  Please run database repair script to identify and/or correct.', false, 'WEBUI');
		return;
	}

	$xml_text .= "<hash_$hash>\n";

	/* XML Branch: <> */
	reset($fields_profile_edit);
	while (list($field_name, $field_array) = each($fields_profile_edit)) {
		if (($field_array['method'] != 'hidden_zero') && ($field_array['method'] != 'hidden')) {
			if (isset($profile{$field_name})) {
				$xml_text .= "\t<$field_name>" . xml_character_encode($profile{$field_name}) . "</$field_name>\n";
			}
		}
	}

	$xml_text .= "\t<cf_items>";

	/* XML Branch: <cf_items> */
	$i = 0;
	if (sizeof($profile_cf) > 0) {
	foreach ($profile_cf as $item) {
		$xml_text .= $item['consolidation_function_id'];

		if (($i+1) < sizeof($profile_cf)) {
			$xml_text .= '|';
		}

		$i++;
	}
	}

	$xml_text .= "</cf_items>\n";

	$xml_text .= "\t<items>\n";

	$i = 0;
	if (sizeof($profile_rra)) {
		foreach ($profile_rra as $item) {
			reset($fields_profile_rra_edit);

			$xml_text .= "\t\t<item_" . str_pad(strval($i), 3, '0', STR_PAD_LEFT) . ">\n";
			while (list($field_name, $field_array) = each($fields_profile_rra_edit)) {
				if (($field_array['method'] != 'hidden_zero') && ($field_array['method'] != 'hidden' && ($field_array['method'] != 'other')) && ($field_array['method'] != 'spacer')) {
					$xml_text .= "\t\t\t<$field_name>" . xml_character_encode($item{$field_name}) . "</$field_name>\n";
				}
			}
			$xml_text .= "\t\t</item_" . str_pad(strval($i), 3, '0', STR_PAD_LEFT) . ">\n";

			$i++;
		}
	}

	$xml_text .= "\t</items>\n";


	$xml_text .= "</hash_$hash>";

	return $xml_text;
}

function host_template_to_xml($host_template_id) {
	global $fields_host_template_edit, $export_errors;

	$hash = get_hash_version('host_template') . get_hash_host_template($host_template_id);
	$xml_text = '';

	$host_template            = db_fetch_row_prepared('SELECT * FROM host_template WHERE id = ?', array($host_template_id));
	$host_template_graph      = db_fetch_assoc_prepared('SELECT * FROM host_template_graph WHERE host_template_id = ? ORDER BY graph_template_id', array($host_template_id));
	$host_template_snmp_query = db_fetch_assoc_prepared('SELECT * FROM host_template_snmp_query WHERE host_template_id = ? ORDER BY snmp_query_id', array($host_template_id));

	if (empty($host_template['id'])) {
		$export_errors++;
		raise_message(28);
		cacti_log('ERROR: Invalid Device Template found during Export.  Please run database repair script to identify and/or correct.', false, 'WEBUI');
		return;
	}

	$xml_text .= "<hash_$hash>\n";

	/* XML Branch: <> */
	reset($fields_host_template_edit);
	while (list($field_name, $field_array) = each($fields_host_template_edit)) {
		if (($field_array['method'] != 'hidden_zero') && ($field_array['method'] != 'hidden')) {
			$xml_text .= "\t<$field_name>" . xml_character_encode($host_template{$field_name}) . "</$field_name>\n";
		}
	}

	/* XML Branch: <graph_templates> */
	$xml_text .= "\t<graph_templates>";

	$j = 0;
	if (sizeof($host_template_graph) > 0) {
	foreach ($host_template_graph as $item) {
		$xml_text .= 'hash_' . get_hash_version('graph_template') . get_hash_graph_template($item['graph_template_id']);

		if (($j+1) < sizeof($host_template_graph)) {
			$xml_text .= '|';
		}

		$j++;
	}
	}

	$xml_text .= "</graph_templates>\n";

	/* XML Branch: <data_queries> */
	$xml_text .= "\t<data_queries>";

	$j = 0;
	if (sizeof($host_template_snmp_query) > 0) {
	foreach ($host_template_snmp_query as $item) {
		$xml_text .= 'hash_' . get_hash_version('data_query') . get_hash_data_query($item['snmp_query_id']);

		if (($j+1) < sizeof($host_template_snmp_query)) {
			$xml_text .= '|';
		}

		$j++;
	}
	}

	$xml_text .= "</data_queries>\n";

	$xml_text .= "</hash_$hash>";

	return $xml_text;
}

function data_query_to_xml($data_query_id) {
	global $fields_data_query_edit, $fields_data_query_item_edit, $export_errors;

	$hash['data_query'] = get_hash_version('data_query') . get_hash_data_query($data_query_id);
	$xml_text = '';

	$snmp_query       = db_fetch_row_prepared('SELECT * FROM snmp_query WHERE id = ?', array($data_query_id));
	$snmp_query_graph = db_fetch_assoc_prepared('SELECT * FROM snmp_query_graph WHERE snmp_query_id = ? ORDER BY hash', array($data_query_id));

	if (empty($snmp_query['id'])) {
		$export_errors++;
		raise_message(28);
		cacti_log('ERROR: Invalid Data Query found during Export.  Please run database repair script to identify and/or correct.', false, 'WEBUI');
		return;
	}

	$xml_text .= '<hash_' . $hash['data_query'] . ">\n";

	/* XML Branch: <> */
	reset($fields_data_query_edit);
	while (list($field_name, $field_array) = each($fields_data_query_edit)) {
		if (($field_name == 'data_input_id') && (!empty($snmp_query{$field_name}))) {
			$xml_text .= "\t<$field_name>hash_" . get_hash_version('data_input_method') . get_hash_data_input($snmp_query{$field_name}) . "</$field_name>\n";
		}else{
			if (($field_array['method'] != 'hidden_zero') && ($field_array['method'] != 'hidden')) {
				$xml_text .= "\t<$field_name>" . xml_character_encode($snmp_query{$field_name}) . "</$field_name>\n";
			}
		}
	}

	/* XML Branch: <graphs> */

	$xml_text .= "\t<graphs>\n";

	$i = 0;
	if (sizeof($snmp_query_graph) > 0) {
	foreach ($snmp_query_graph as $item) {
		$hash['data_query_graph'] = get_hash_version('data_query_graph') . get_hash_data_query($item['id'], 'data_query_graph');

		$xml_text .= "\t\t<hash_" . $hash['data_query_graph'] . ">\n";

		reset($fields_data_query_item_edit);
		while (list($field_name, $field_array) = each($fields_data_query_item_edit)) {
			if (($field_name == 'graph_template_id') && (!empty($item{$field_name}))) {
				$xml_text .= "\t\t\t<$field_name>hash_" . get_hash_version('graph_template') . get_hash_graph_template($item{$field_name}) . "</$field_name>\n";
			}else{
				if (($field_array['method'] != 'hidden_zero') && ($field_array['method'] != 'hidden')) {
					$xml_text .= "\t\t\t<$field_name>" . xml_character_encode($item{$field_name}) . "</$field_name>\n";
				}
			}
		}

		$snmp_query_graph_rrd_sv = db_fetch_assoc_prepared('SELECT * FROM snmp_query_graph_rrd_sv WHERE snmp_query_graph_id = ? ORDER BY sequence', array($item['id']));
		$snmp_query_graph_sv     = db_fetch_assoc_prepared('SELECT * FROM snmp_query_graph_sv WHERE snmp_query_graph_id = ? ORDER BY sequence', array($item['id']));
		$snmp_query_graph_rrd    = db_fetch_assoc_prepared('SELECT * FROM snmp_query_graph_rrd WHERE snmp_query_graph_id = ? AND data_template_id > 0 ORDER BY data_template_rrd_id', array($item['id']));

		/* XML Branch: <graphs/rrd> */

		$xml_text .= "\t\t\t<rrd>\n";

		$i = 0;
		if (sizeof($snmp_query_graph_rrd) > 0) {
		foreach ($snmp_query_graph_rrd as $item2) {
			$xml_text .= "\t\t\t\t<item_" . str_pad(strval($i), 3, '0', STR_PAD_LEFT) . ">\n";

			$xml_text .= "\t\t\t\t\t<snmp_field_name>" . $item2{'snmp_field_name'} . "</snmp_field_name>\n";
			$xml_text .= "\t\t\t\t\t<data_template_id>hash_" . get_hash_version('data_template') . get_hash_data_template($item2{'data_template_id'}) . "</data_template_id>\n";
			$xml_text .= "\t\t\t\t\t<data_template_rrd_id>hash_" . get_hash_version('data_template_item') . get_hash_data_template($item2{'data_template_rrd_id'}, 'data_template_item') . "</data_template_rrd_id>\n";

			$xml_text .= "\t\t\t\t</item_" . str_pad(strval($i), 3, '0', STR_PAD_LEFT) . ">\n";

			$i++;
		}
		}

		$xml_text .= "\t\t\t</rrd>\n";

		/* XML Branch: <graphs/sv_graph> */

		$xml_text .= "\t\t\t<sv_graph>\n";

		$j = 0;
		if (sizeof($snmp_query_graph_sv) > 0) {
		foreach ($snmp_query_graph_sv as $item2) {
			$hash['data_query_sv_graph'] = get_hash_version('data_query_sv_graph') . get_hash_data_query($item2['id'], 'data_query_sv_graph');

			$xml_text .= "\t\t\t\t<hash_" . $hash['data_query_sv_graph'] . ">\n";

			$xml_text .= "\t\t\t\t\t<field_name>" . xml_character_encode($item2{'field_name'}) . "</field_name>\n";
			$xml_text .= "\t\t\t\t\t<sequence>" . $item2{'sequence'} . "</sequence>\n";
			$xml_text .= "\t\t\t\t\t<text>" . xml_character_encode($item2{'text'}) . "</text>\n";

			$xml_text .= "\t\t\t\t</hash_" . $hash['data_query_sv_graph'] . ">\n";

			$j++;
		}
		}

		$xml_text .= "\t\t\t</sv_graph>\n";

		/* XML Branch: <graphs/sv_data_source> */

		$xml_text .= "\t\t\t<sv_data_source>\n";

		$j = 0;
		if (sizeof($snmp_query_graph_rrd_sv) > 0) {
		foreach ($snmp_query_graph_rrd_sv as $item2) {
			$hash['data_query_sv_data_source'] = get_hash_version('data_query_sv_data_source') . get_hash_data_query($item2['id'], 'data_query_sv_data_source');

			$xml_text .= "\t\t\t\t<hash_" . $hash['data_query_sv_data_source'] . ">\n";

			$xml_text .= "\t\t\t\t\t<field_name>" . xml_character_encode($item2{'field_name'}) . "</field_name>\n";
			$xml_text .= "\t\t\t\t\t<data_template_id>hash_" . get_hash_version('data_template') . get_hash_data_template($item2{'data_template_id'}) . "</data_template_id>\n";
			$xml_text .= "\t\t\t\t\t<sequence>" . $item2{'sequence'} . "</sequence>\n";
			$xml_text .= "\t\t\t\t\t<text>" . xml_character_encode($item2{'text'}) . "</text>\n";

			$xml_text .= "\t\t\t\t</hash_" . $hash['data_query_sv_data_source'] . ">\n";

			$j++;
		}
		}

		$xml_text .= "\t\t\t</sv_data_source>\n";

		$xml_text .= "\t\t</hash_" . $hash['data_query_graph'] . ">\n";

		$i++;
	}
	}

	$xml_text .= "\t</graphs>\n";

	$xml_text .= '</hash_' . $hash['data_query'] . '>';

	return $xml_text;
}

function resolve_dependencies($type, $id, $dep_array) {
	/* make sure we define our variables */
	if (!isset($dep_array[$type])) {
		$dep_array[$type] = array();
	}

	switch ($type) {
	case 'graph_template':
		/* dep: data template */
		$graph_template_items = db_fetch_assoc_prepared('SELECT
			data_template_rrd.data_template_id
			FROM (graph_templates_item,data_template_rrd)
			WHERE graph_templates_item.task_item_id=data_template_rrd.id
			AND graph_templates_item.graph_template_id = ?
			AND graph_templates_item.local_graph_id=0
			AND graph_templates_item.task_item_id > 0
			GROUP BY data_template_rrd.data_template_id', array($id));

		if (sizeof($graph_template_items) > 0) {
		foreach ($graph_template_items as $item) {
			if (!isset($dep_array['data_template']{$item['data_template_id']})) {
				$dep_array = resolve_dependencies('data_template', $item['data_template_id'], $dep_array);
			}
		}
		}

		/* dep: cdef */
		$cdef_items = db_fetch_assoc_prepared('SELECT cdef_id 
			FROM graph_templates_item 
			WHERE graph_template_id = ?
			AND local_graph_id=0 
			AND cdef_id > 0 
			GROUP BY cdef_id', array($id));
		
		$recursive = true;
		/* in the first turn, search all inherited cdef items related to all cdef's known on highest recursion level */
		$search_cdef_items = array_rekey($cdef_items, 'cdef_id', 'cdef_id');
		if (sizeof($cdef_items) > 0) {
			while ($recursive) {
				/* are there any inherited cdef's within those referenced by any graph item? 
				 * search for all cdef_items of type = 5 (inherited cdef) 
				 * but fetch only those related to already given cdef's */
				$sql = 'SELECT value as cdef_id ' .
					'FROM cdef_items ' .
					'WHERE type = 5 ' .
					'AND ' . array_to_sql_or($search_cdef_items, 'cdef_id');

				$inherited_cdef_items = db_fetch_assoc($sql);
				
				/* in case we found any */
				if (sizeof($inherited_cdef_items) > 0) {
					/* join all cdef's found 
					 * ATTENTION!
					 * sequence of parameters matters! 
					 * we must place the newly found inherited items first
					 * reason is, that during import, the leafes have to be tackled first,
					 * that is, the inherited items must be placed first so that they are "resolved" (decoded)
					 * first during re-import */
					$cdef_items = array_merge_recursive($inherited_cdef_items, $cdef_items);
					/* for the next turn, search only new cdef's */
					$search_cdef_items = $inherited_cdef_items;
				} else {
					/* else stop recursion */
					$recursive = false;
				}
			}

			foreach ($cdef_items as $item) {
				if (!isset($dep_array['cdef']{$item['cdef_id']})) {
					$dep_array = resolve_dependencies('cdef', $item['cdef_id'], $dep_array);
				}
			}
		}

		/* dep: vdef */
		$vdef_items = db_fetch_assoc_prepared('SELECT vdef_id 
			FROM graph_templates_item 
			WHERE graph_template_id = ? 
			AND local_graph_id=0 
			AND vdef_id > 0 
			GROUP BY vdef_id', 
			array($id));

		if (sizeof($vdef_items) > 0) {
		foreach ($vdef_items as $item) {
			if (!isset($dep_array['vdef']{$item['vdef_id']})) {
				$dep_array = resolve_dependencies('vdef', $item['vdef_id'], $dep_array);
			}
		}
		}

		/* dep: gprint preset */
		$graph_template_items = db_fetch_assoc_prepared('SELECT gprint_id 
			FROM graph_templates_item 
			WHERE graph_template_id = ? 
			AND local_graph_id=0 
			AND gprint_id > 0 
			GROUP BY gprint_id', 
			array($id));

		if (sizeof($graph_template_items) > 0) {
		foreach ($graph_template_items as $item) {
			if (!isset($dep_array['gprint_preset']{$item['gprint_id']})) {
				$dep_array = resolve_dependencies('gprint_preset', $item['gprint_id'], $dep_array);
			}
		}
		}

		break;
	case 'data_template':
		/* dep: data input method */
		$item = db_fetch_row_prepared('SELECT data_input_id 
			FROM data_template_data 
			WHERE data_template_id = ?
			AND local_data_id=0 
			AND data_input_id > 0',
			array($id));

		if ((!empty($item)) && (!isset($dep_array['data_input_method']{$item['data_input_id']}))) {
			$dep_array = resolve_dependencies('data_input_method', $item['data_input_id'], $dep_array);
		}

		/* dep: data source profiles */
		$profiles = db_fetch_assoc_prepared('SELECT DISTINCT data_source_profile_id 
			FROM data_template_data 
			WHERE data_template_id = ? 
			AND local_data_id=0', 
			array($id));

		if (sizeof($profiles)) {
		foreach ($profiles as $item) {
			if (!isset($dep_array['data_source_profile']{$item['data_source_profile_id']})) {
				$dep_array = resolve_dependencies('data_source_profile', $item['data_source_profile_id'], $dep_array);
			}
		}
		}

		break;
	case 'data_query':
		/* dep: data input method */
		$item = db_fetch_row_prepared('SELECT data_input_id 
			FROM snmp_query 
			WHERE id = ? 
			AND data_input_id > 0',
			array($id));

		if ((!empty($item)) && (!isset($dep_array['data_input_method']{$item['data_input_id']}))) {
			$dep_array = resolve_dependencies('data_input_method', $item['data_input_id'], $dep_array);
		}

		/* dep: graph template */
		$snmp_query_graph = db_fetch_assoc_prepared('SELECT graph_template_id 
			FROM snmp_query_graph 
			WHERE snmp_query_id = ?
			AND graph_template_id > 0 
			GROUP BY graph_template_id',
			array($id));

		if (sizeof($snmp_query_graph) > 0) {
		foreach ($snmp_query_graph as $item) {
			if (!isset($dep_array['graph_template']{$item['graph_template_id']})) {
				$dep_array = resolve_dependencies('graph_template', $item['graph_template_id'], $dep_array);
			}
		}
		}

		break;
	case 'host_template':
		/* dep: graph template */
		$host_template_graph = db_fetch_assoc_prepared('SELECT graph_template_id 
			FROM host_template_graph 
			WHERE host_template_id = ? 
			AND graph_template_id > 0 
			GROUP BY graph_template_id',
			array($id));

		if (sizeof($host_template_graph) > 0) {
		foreach ($host_template_graph as $item) {
			if (!isset($dep_array['graph_template']{$item['graph_template_id']})) {
				$dep_array = resolve_dependencies('graph_template', $item['graph_template_id'], $dep_array);
			}
		}
		}

		/* dep: data query */
		$host_template_snmp_query = db_fetch_assoc_prepared('SELECT snmp_query_id 
			FROM host_template_snmp_query 
			WHERE host_template_id = ? 
			AND snmp_query_id > 0 
			GROUP BY snmp_query_id',
			array($id));

		if (sizeof($host_template_snmp_query) > 0) {
		foreach ($host_template_snmp_query as $item) {
			if (!isset($dep_array['data_query']{$item['snmp_query_id']})) {
				$dep_array = resolve_dependencies('data_query', $item['snmp_query_id'], $dep_array);
			}
		}
		}

		break;
	}

	/* update the dependency array */
	$dep_array[$type][$id] = $id;

	return $dep_array;
}

function get_item_xml($type, $id, $follow_deps) {
	$xml_text = '';
	$xml_indent = '';

	if ($follow_deps == true) {
		/* follow all dependencies recursively */
		$dep_array = resolve_dependencies($type, $id, array());
	}else{
		/* we are not supposed to resolve dependencies */
		$dep_array[$type][$id] = $id;
	}

	if (sizeof($dep_array)) {
		while (list($dep_type, $dep_arr) = each($dep_array)) {
			while (list($dep_id, $dep_id) = each($dep_arr)) {
				switch($dep_type) {
				case 'graph_template':
					$xml_text .= "\n" . graph_template_to_xml($dep_id);
					break;
				case 'data_template':
					$xml_text .= "\n" . data_template_to_xml($dep_id);
					break;
				case 'host_template':
					$xml_text .= "\n" . host_template_to_xml($dep_id);
					break;
				case 'data_input_method':
					$xml_text .= "\n" . data_input_method_to_xml($dep_id);
					break;
				case 'data_query':
					$xml_text .= "\n" . data_query_to_xml($dep_id);
					break;
				case 'gprint_preset':
					$xml_text .= "\n" . gprint_preset_to_xml($dep_id);
					break;
				case 'cdef':
					$xml_text .= "\n" . cdef_to_xml($dep_id);
					break;
				case 'vdef':
					$xml_text .= "\n" . vdef_to_xml($dep_id);
					break;
				case 'data_source_profile':
					$xml_text .= "\n" . data_source_profile_to_xml($dep_id);
					break;
				}
			}
		}
	}

	$xml_array = explode("\n", $xml_text);

	for ($i=0; $i<count($xml_array); $i++) {
		$xml_indent .= "\t" . $xml_array[$i] . "\n";
	}

	$xml_text = '<cacti>' . $xml_indent . '</cacti>';

	return $xml_text;
}

function xml_character_encode($text) {
	if (function_exists('htmlspecialchars')) {
		return htmlspecialchars($text, ENT_QUOTES, 'UTF-8');
	} else {
		$text = str_replace('&', '&amp;', $text);
		$text = str_replace('>', '&gt;', $text);
		$text = str_replace('<', '&lt;', $text);
		$text = str_replace("\"", '&quot;', $text);
		$text = str_replace("\'", '&apos;', $text);

		return $text;
	}
}

