<?php

// Pandora FMS - http://pandorafms.com
// ==================================================
// Copyright (c) 2005-2011 Artica Soluciones Tecnologicas
// Please see http://pandorafms.org for full contribution list

// 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; version 2

// 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.

global $config;

include_once("include/functions_graph.php");
include_once("include/functions_ui.php");
include_once("include/functions_netflow.php");
ui_require_javascript_file ('calendar');


// ACL
check_login ();
if (! check_acl ($config["id_user"], 0, "AR")) {
	db_pandora_audit("ACL Violation",
		"Trying to access event viewer");
	require ("general/noaccess.php");
	return;
}

// Ajax callbacks
if (is_ajax()){
	$get_filter_type = get_parameter('get_filter_type', 0);
	$get_filter_values = get_parameter('get_filter_values', 0);
	
	// Get filter of the current netflow filter
	if ($get_filter_type){
		$id = get_parameter('id');
		
		$advanced_filter = db_get_value_filter('advanced_filter', 'tnetflow_filter', array('id_sg' => $id));
		
		if (empty($advanced_filter))
			$type = 0;
		else
			$type = 1;
		
		echo $type;
	}
	
	// Get values of the current netflow filter
	if ($get_filter_values){
		$id = get_parameter('id');
		
		$filter_values = db_get_row_filter ('tnetflow_filter', array('id_sg' => $id));
		
		echo json_encode($filter_values);
	}
	
	return;
}

// Read filter configuration
$filter_id = (int) get_parameter ('filter_id', 0);
$filter['id_name'] = (string) get_parameter ('name', '');
$filter['id_group'] = (int) get_parameter ('assign_group', 0);
$filter['aggregate'] = get_parameter('aggregate','');
$filter['output'] = get_parameter('output','bytes');
$filter['ip_dst'] = get_parameter('ip_dst','');
$filter['ip_src'] = get_parameter('ip_src','');
$filter['dst_port'] = get_parameter('dst_port','');
$filter['src_port'] = get_parameter('src_port','');
$filter['advanced_filter'] = get_parameter('advanced_filter','');

// Read chart configuration
$chart_type = (int) get_parameter('chart_type', 0);
$max_aggregates = (int) get_parameter('max_aggregates', 0);
$period = (int) get_parameter('period', '86400');
$update_date = (int) get_parameter('update_date', 0);
$date = get_parameter_post ('date', date ("Y/m/d", get_system_time ()));
$time = get_parameter_post ('time', date ("H:i:s", get_system_time ()));


// Read buttons
$draw = get_parameter('draw_button', '');
$save = get_parameter('save_button', '');
$update = get_parameter('update_button', '');


// Calculate start and end dates
$end_date = strtotime ($date . " " . $time);
$start_date = $end_date - $period;

//Header
ui_print_page_header (__('Netflow live view'), "images/networkmap/so_cisco_new.png", false, "", false, array ());

// Save user defined filter
if ($save != '' && check_acl ($config["id_user"], 0, "AW")) {
	
	// Save filter args
	$filter['filter_args'] = netflow_get_filter_arguments ($filter);
	
	$filter_id = db_process_sql_insert ('tnetflow_filter', $filter);
	if ($filter_id === false) {
		$filter_id = 0;
		echo '<h3 class="error">'.__ ('Error creating filter').'</h3>';
	}
	else {
		echo '<h3 class="suc">'.__ ('Filter created successfully').'</h3>';
	}
}
// Update current filter
else if ($update != '' && check_acl ($config["id_user"], 0, "AW")) {
	// Do not update the filter name and group
	$filter_copy = $filter;
	unset ($filter_copy['id_name']);
	unset ($filter_copy['id_group']);
	
	// Save filter args
	$filter_copy['filter_args'] = netflow_get_filter_arguments ($filter_copy);
	
	$result = db_process_sql_update ('tnetflow_filter', $filter_copy, array ('id_sg' => $filter_id));
	ui_print_result_message ($result, __('Filter updated successfully'), __('Error updating filter'));
} 


// The filter name will not be needed anymore
$filter['id_name'] = '';

echo '<form method="post" action="index.php?sec=netf&sec2=operation/netflow/nf_live_view">';
	
	// Chart options table
	$table->width = '100%';
	$table->border = 0;
	$table->class = "databox_color";
	$table->style[0] = 'vertical-align: top;';
	$table->data = array ();
	
	$table->data[0][0] = '<b>'.__('Date').'</b>';
	$table->data[0][1] = html_print_input_text ('date', $date, false, 10, 10, true);
	$table->data[0][1] .= html_print_image ("images/calendar_view_day.png", true, array ("alt" => "calendar", "onclick" => "scwShow(scwID('text-date'),this);"));
	$table->data[0][1] .= html_print_input_text ('time', $time, false, 10, 5, true);
	
	$table->data[0][2] = '<b>'.__('Interval').'</b>';
	$table->data[0][3] = html_print_select (netflow_get_valid_intervals (), 'period', $period, '', '', 0, true, false, false);
	$table->data[0][4] = '<b>'.__('Type').'</b>';
	$table->data[0][5] = html_print_select (netflow_get_chart_types (), 'chart_type', $chart_type,'','',0,true);
	$max_values = array ('2' => '2',
		'5' => '5',
		'10' => '10',
		'15' => '15',
		'20' => '20',
		'25' => '25',
		'50' => '50'
	);
	$table->data[0][6] = '<b>'.__('Max. values').'</b>';
	$table->data[0][7] = html_print_select ($max_values, 'max_aggregates', $max_aggregates, '', '', 0, true);
	
	html_print_table ($table);
	
	// Filter options table
	$table->width = '100%';
	$table->border = 0;
	$table->class = "databox_color";
	$table->style[0] = 'vertical-align: top;';
	$table->size[0] = '15%';
	$table->data = array ();
	
	$table->data[0][0] = ui_print_error_message ('Define a name for the filter and click on Save as new filter again', '', true);
	$table->colspan[0][0] = 4;
	
	$table->data[1][0] = '<span id="filter_name_color"><b>'.__('Name').'</b></span>';
	$table->data[1][1] = html_print_input_text ('name', $filter['id_name'], false, 20, 80, true);
	$own_info = get_user_info ($config['id_user']);
	$table->data[1][2] = '<span id="filter_group_color"><b>'.__('Group').'</b></span>';
	$table->data[1][3] = html_print_select_groups($config['id_user'], "IW",	$own_info['is_admin'], 'assign_group', $filter['id_group'], '', '', -1, true, false, false);
	
	// Read filter type
	if ($filter['advanced_filter'] != '') {
		$filter_type = 1;
	}
	else {
		$filter_type = 0;
	}
	
	$table->data[2][0] = '<b>'.__('Filter').'</b>';
	$table->data[2][1] = __('Normal') . ' ' . html_print_radio_button_extended ('filter_type', 0, '', $filter_type, false, 'displayNormalFilter();', 'style="margin-right: 40px;"', true);
	$table->data[2][1] .= __('Advanced') . ' ' . html_print_radio_button_extended ('filter_type', 1, '', $filter_type, false, 'displayAdvancedFilter();', 'style="margin-right: 40px;"', true);
	$table->data[2][2] = '<b>'.__('Load filter').'</b>';
	$user_groups = users_get_groups ($config['id_user'], "AR", $own_info['is_admin'], true);
	$sql = "SELECT * FROM tnetflow_filter WHERE id_group IN (".implode(',', array_keys ($user_groups)).")";
	$table->data[2][3] = html_print_select_from_sql ($sql, 'filter_id', $filter_id, '', __('none'), 0, true);
	
	
	$table->data[3][0] = __('Dst Ip'). ui_print_help_tip (__("Destination IP. A comma separated list of destination ip. If we leave the field blank, will show all ip. Example filter by ip:<br>25.46.157.214,160.253.135.249"), true);
	$table->data[3][1] = html_print_input_text ('ip_dst', $filter['ip_dst'], false, 40, 80, true);
	$table->data[3][2] = __('Src Ip'). ui_print_help_tip (__("Source IP. A comma separated list of source ip. If we leave the field blank, will show all ip. Example filter by ip:<br>25.46.157.214,160.253.135.249"), true);
	$table->data[3][3] = html_print_input_text ('ip_src', $filter['ip_src'], false, 40, 80, true);
	
	$table->data[4][0] = __('Dst Port'). ui_print_help_tip (__("Destination port. A comma separated list of destination ports. If we leave the field blank, will show all ports. Example filter by ports 80 and 22:<br>80,22"), true);
	$table->data[4][1] = html_print_input_text ('dst_port', $filter['dst_port'], false, 40, 80, true);
	$table->data[4][2] = __('Src Port'). ui_print_help_tip (__("Source port. A comma separated list of source ports. If we leave the field blank, will show all ports. Example filter by ports 80 and 22:<br>80,22"), true);
	$table->data[4][3] = html_print_input_text ('src_port', $filter['src_port'], false, 40, 80, true);
	
	$table->data[5][0] = ui_print_help_icon ('pcap_filter', true);
	$table->data[5][1] = html_print_textarea ('advanced_filter', 4, 40, $filter['advanced_filter'], "style='min-height: 0px;'", true);
	$table->colspan[5][1] = 3;
	
	$table->data[6][0] = '<b>'.__('Aggregate by').'</b>'. ui_print_help_icon ('aggregate_by', true);
	
	$aggregate_list = array();
	$aggregate_list = array ('none' => __('None'), 'proto' => __('Protocol'), 'srcip' =>__('Src Ip Address'), 'dstip' =>__('Dst Ip Address'), 'srcport' =>__('Src Port'), 'dstport' =>__('Dst Port') );
	$table->data[6][1] = html_print_select ($aggregate_list, "aggregate", $filter['aggregate'], '', '', 0, true, false, true, '', false);
	
	$table->data[6][2] = '<b>'.__('Output format').'</b>';
	$show_output = array();
	$show_output = array ('packets' => __('Packets'), 'bytes' => __('Bytes'), 'flows' =>__('Flows'));
	$table->data[6][3] = html_print_select ($show_output, 'output', $filter['output'], '', '', 0, true, false, true, '', false);
	
	html_print_table ($table);
	
	html_print_submit_button (__('Draw'), 'draw_button', false, 'class="sub upd"');
	if (check_acl ($config["id_user"], 0, "AW")) {
		html_print_submit_button (__('Save as new filter'), 'save_button', false, 'class="sub upd" onClick="return defineFilterName();"');
		
		html_print_submit_button (__('Update current filter'), 'update_button', false, 'class="sub upd"');
	}
echo'</form>';

if  ($draw != '') {
	// Get the command to call nfdump
	$command = netflow_get_command ($filter);
	
	// Build a unique id for the cache
	$unique_id = 'live_view__' . ($end_date - $start_date);
	
	// Draw
	netflow_draw_item ($start_date, $end_date, $chart_type, $filter, $command, $filter, $max_aggregates, $unique_id);
}
?>

<script type="text/javascript">
	// Hide the normal filter and display the advanced filter
	function displayAdvancedFilter () {
		// Erase the normal filter
		document.getElementById("text-ip_dst").value = '';
		document.getElementById("text-ip_src").value = '';
		document.getElementById("text-dst_port").value = '';
		document.getElementById("text-src_port").value = '';
		
		// Hide the normal filter
		document.getElementById("table2-3").style.display = 'none';
		document.getElementById("table2-4").style.display = 'none';
		
		// Show the advanced filter
		document.getElementById("table2-5").style.display = '';
	};
	
	// Hide the advanced filter and display the normal filter
	function displayNormalFilter () {
		// Erase the advanced filter
		document.getElementById("textarea_advanced_filter").value = '';
		
		// Hide the advanced filter
		document.getElementById("table2-5").style.display = 'none';
		
		// Show the normal filter
		document.getElementById("table2-3").style.display = '';
		document.getElementById("table2-4").style.display = '';
	};
	
	// Ask the user to define a name for the filter in order to save it
	function defineFilterName () {
		if (document.getElementById("text-name").value == '') {
			document.getElementById("table2-0").style.display = '';
			document.getElementById("table2-1").style.display = '';
			
			return false;
		}
		
		return true;
	};
	
	// Display the appropriate filter
	var filter_type = <?php echo $filter_type ?>;
	if (filter_type == 0) {
		displayNormalFilter ();
	}
	else {
		displayAdvancedFilter ();
	}
	
	// Hide filter name and group
	document.getElementById("table2-0").style.display = 'none';
	document.getElementById("table2-1").style.display = 'none';
	
	$("#filter_id").change(function () {
		var filter_type;
		
		// Hide information and name/group row
		$("#table2-0").css('display', 'none');
		$("#table2-1").css('display', 'none');
		
		// Clean fields
		if ($("#filter_id").val() == 0) {
			//displayNormalFilter ();
			$("#table2-3").css('display', '');
			$("#table2-4").css('display', '');
			$("#table2-5").css('display', 'none');			
			
			// Check right filter type
			$("#radiobtn0001").attr("checked", "checked");
			$("#radiobtn0002").attr("checked", "");			
			
			$("#text-ip_dst").val('');
			$("#text-ip_src").val('');
			$("#text-dst_port").val('');
			$("#text-src_port").val('');
			$("#textarea_advanced_filter").val('');		
			$("#aggregate").val('');					
			$("#output").val('');
			
			// Hide update filter button
			$("#submit-update_button").css("visibility", "hidden");	
			
		}
		else {
			// Load fields from DB
			
			// Get filter type
			jQuery.post ("ajax.php",
				{"page" : "operation/netflow/nf_live_view",
				"get_filter_type" : 1,
				"id" : $("#filter_id").val()
				},
				function (data) {
					filter_type = data;
					// Display the appropriate filter
					if (filter_type == 0) {
						$("#table2-3").css('display', '');
						$("#table2-4").css('display', '');
						$("#table2-5").css('display', 'none');
						
						// Check right filter type
						$("#radiobtn0001").attr("checked", "checked");
						$("#radiobtn0002").attr("checked", "");
					}
					else {
						$("#table2-3").css('display', 'none');
						$("#table2-4").css('display', 'none');
						$("#table2-5").css('display', '');
						
						// Check right filter type
						$("#radiobtn0001").attr("checked", "");
						$("#radiobtn0002").attr("checked", "checked");					
					}
				});	
				
			// Shows update filter button
			$("#submit-update_button").css("visibility", "");			
			
			// Get filter values from DB
			jQuery.post ("ajax.php",
				{"page" : "operation/netflow/nf_live_view",
				"get_filter_values" : 1,
				"id" : $("#filter_id").val()
				},
				function (data) {
				  jQuery.each (data, function (i, val) {
					  if (i == 'ip_dst')
						$("#text-ip_dst").val(val);
					  if (i == 'ip_src')
						$("#text-ip_src").val(val);
					  if (i == 'dst_port')
						$("#text-dst_port").val(val);
					  if (i == 'src_port')
						$("#text-src_port").val(val);
					  if (i == 'advanced_filter')
						$("#textarea_advanced_filter").val(val);							
					  if (i == 'aggregate')
						$("#aggregate").val(val);
					  if (i == 'output')
						$("#output").val(val);
				  });
				},
				"json");
		}
		
	});
	
	$(document).ready( function() {
		// Hide update filter button
		if ($("#filter_id").val() == 0) {
			$("#submit-update_button").css("visibility", "hidden");		
		}
		else {
			$("#submit-update_button").css("visibility", "");				
		}
		
		// Change color of name and group if save button has been pushed
		$("#submit-save_button").click(function () {
			if ($("#text-name").val() == "") {
				$('#filter_name_color').css('color', '#CC0000');
				$('#filter_group_color').css('color', '#CC0000');			
			}
			else {
				$('#filter_name_color').css('color', '#000000');
				$('#filter_group_color').css('color', '#000000');				
			}
		});
	});
</script>