<?php
session_start();

require_once("db.class.php");
require_once("ipmatch.php");
require_once("config.php");

header("Content-Type: text/xml");
header("Cache-Control: no-cache, must-revalidate");
header("Expires: Mon, 26 Jul 1997 05:00:00 GMT");

$db = new DB($conf['db']['user'], $conf['db']['password'], $conf['db']['host'], $conf['db']['database']);
$conf['acl']['auth'] = match_network($conf['acl']['range'],$_SERVER[REMOTE_ADDR]);

if(!$conf['acl']['auth'] )
{
  if (isset($_SESSION['logged_in']) && $_SESSION['logged_in'])
    $conf['acl']['auth'] = true;
}

$x_startpoint = 4080;
$lng_startpoint = 15.43844103813;
$dx_dLng = 50675.5176;
$y_startpoint = 4806;
$lat_startpoint= 47.07177327969;
$dy_dLat = 75505.521;

$locations = array();
$locids = array();
$nodename = array();
$links = array();
$already = array();
$count = array();

$db->query("SELECT ip, location.id as locid,location.name as locname, node.name as nodename FROM ip, node, location WHERE ip.node_id = node.id and node.location_id=location.id");
while ($data = $db->getNextObject()) {
	$locids[$data->ip]= $data->locid;
	$nodename[$data->ip]= $data->nodename;
}

if($conf['acl']['auth'])
	$db->query("SELECT id as locid, name as locname, pixel_x, pixel_y, gallery_link, location.hastinc as hastinc FROM location ORDER BY name ASC");
else
	$db->query("SELECT id as locid, name as locname, pixel_x, pixel_y, gallery_link, location.hastinc as hastinc FROM location WHERE location.hidden = 0 ORDER BY name ASC");

while ($data = $db->getNextObject()) {
	if ($data->pixel_x == "0")
		continue;

	$data->lng = $lng_startpoint + ($data->pixel_x - $x_startpoint) / $dx_dLng;
	$data->lat = $lat_startpoint + ($y_startpoint - $data->pixel_y) / $dy_dLat;
        $data->state = "offline";
	$locations[$data->locid] = $data;
}

$regmatch = '#\"(.+)\" -> \"(.+)\"\[label=\"([0-9]+.[0-9]+)\"]#';
$lines = file($conf['topo']['file']);

$linecnt=0;
$i =0;
foreach ($lines as $num => $line) 
{
	$linecnt++;
	preg_match($regmatch,$line,$matches);
	list( , $ipfromLoc, $iptoLoc, $label) = $matches;

	if (empty($ipfromLoc) || empty($iptoLoc) || empty($label))
		continue;

	if(empty($locations[$locids[$ipfromLoc]]->locid) || empty($locations[$locids[$iptoLoc]]->locid))
		continue;

	if($locations[$locids[$ipfromLoc]]->locid == $locations[$locids[$iptoLoc]]->locid)
		continue;

	if($already[$locations[$locids[$ipfromLoc]]->locid . '-' . $locations[$locids[$iptoLoc]]->locid]->used == true) { 
		$jot = $already[$locations[$locids[$ipfromLoc]]->locid . '-' . $locations[$locids[$iptoLoc]]->locid]->i;
                if($links[$jot]->label != -1)
			$links[$jot]->label = ($links[$jot]->label + $label)/2;
	}
	elseif($already[$locations[$locids[$iptoLoc]]->locid . '-' . $locations[$locids[$ipfromLoc]]->locid]->used == true) {
		$jot = $already[$locations[$locids[$iptoLoc]]->locid . '-' . $locations[$locids[$ipfromLoc]]->locid]->i;
                if($links[$jot]->label != -1)
			$links[$jot]->label = ($links[$jot]->label + $label)/2;
	}
	else {
		$already[$locations[$locids[$ipfromLoc]]->locid . '-' . $locations[$locids[$iptoLoc]]->locid]->used = true;
		$already[$locations[$locids[$ipfromLoc]]->locid . '-' . $locations[$locids[$iptoLoc]]->locid]->i = $i;

		$links[$i]->ipfromLoc = $ipfromLoc;
		$links[$i]->iptoLoc = $iptoLoc;
                if($links[$i]->label != -1)
			$links[$i]->label = $label;
                if($locations[$locids[$ipfromLoc]]->state == "offline")
			$locations[$locids[$ipfromLoc]]->state = "online";
                if($locations[$locids[$iptoLoc]]->state == "offline")
			$locations[$locids[$iptoLoc]]->state = "online";

		if (($nodename[$ipfromLoc] == "tunnel" && $locations[$locids[$ipfromLoc]]->locname=="housing") || 
			($nodename[$iptoLoc] == "tunnel" && $locations[$locids[$iptoLoc]]->locname=="housing" ) ||
			($locations[$locids[$iptoLoc]]->hastinc && $locations[$locids[$ipfromLoc]]->hastinc)) {
			$links[$i]->label = -1;
			$locations[$locids[$ipfromLoc]]->state = "tunnel";
			$locations[$locids[$iptoLoc]]->state = "tunnel";
		}

		$i++;
	}
}


echo "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n";
echo "<root>\n";

echo "<nodes>\n";
foreach ($locations as $location) {
	$data = $locations[$location->locid];
	printf("\t" . '<node id="%s" name="%s" lat="%s" lng="%s" pixel_x="%s" pixel_y="%s" state="%s" gallery_link="%s"/>' . "\n", 
				 $data->locid, $data->locname, $data->lat, $data->lng, $data->pixel_x, $data->pixel_y, $data->state, $data->gallery_link);
}
echo "</nodes>\n";

echo "<links>\n";
foreach ($links as $link)
{
	$data1 = $locations[$locids[$link->ipfromLoc]];
	$data2 = $locations[$locids[$link->iptoLoc]];

	$count[$data1->locid]=true;
	$count[$data2->locid]=true;

	printf("\t" . '<link fromid="%s" from="%s" latfrom="%s" lngfrom="%s" toid="%s" to="%s" latto="%s" lngto="%s" value="%s" />' . "\n", 
				 $data1->locid, $data1->locname, $data1->lat,$data1->lng,$data2->locid, $data2->locname, $data2->lat, $data2->lng, $link->label);
}
echo "</links>\n";

echo "<counts>\n";
printf("\t" . '<count number="');
echo sizeof($count);
printf('" />' . "\n");
echo "</counts>\n";

echo "</root>";

?>