/**
* render one image for overlay
*
* @param string $mode
* @param float $lat1
* @param float $lat2
* @param float $lon1
* @param float $lon2
*/
public function renderImage($mode, $lat1, $lat2, $lon1, $lon2)
{
header("Content-type: image/png");
MyUtils::setIni(180, '1024M');
$request = $this->getHttpRequest();
$zoom = $request->getQuery("zoom");
$this->overlayRenderer = new OverlayRenderer($zoom);
// not allowed mode -> set do default mode
if (!$this->allowedMode($mode)) {
$mode = self::DEFAULT_MODE;
}
// zoom is too small
if ($zoom < self::MIN_OVERLAY_ZOOM) {
echo MyUtils::image2string($this->overlayRenderer->drawNone());
exit;
}
// increase coords range, due to future crop
$coords = new Coords($lat1, $lat2, $lon1, $lon2);
$coords->increaseLatLngRange(self::INCREASE_LATLNG_RANGE_ABOUT);
// params for image creation
$params = array();
switch ($mode) {
case self::MODE_SEARCH:
$ssidmac = $request->getQuery("ssidmac");
if ($ssidmac) {
if (MyUtils::isMacAddress($ssidmac)) {
$params['mac'] = urldecode($ssidmac);
} else {
$params['ssid'] = $ssidmac;
}
}
$channel = $request->getQuery('channel');
if ($channel != null && $channel != "") {
$params['channel'] = intval($channel);
}
$security = $request->getQuery('security');
if ($security != null && $security != '') {
$params['sec'] = intval($security);
}
$source = $request->getQuery('source');
if ($source != null && $source != "") {
$params['id_source'] = intval($source);
}
break;
case self::MODE_HIGHLIGHT:
$by = $request->getQuery("by");
if (in_array($by, self::$MODE_HIGHLIGHT_ALLOWED_BY)) {
$params['by'] = $by;
$val = $request->getQuery("val");
$params['val'] = $val;
}
break;
case self::MODE_ONE:
$ssidmac = $this->getHttpRequest()->getQuery('ssid');
if (MyUtils::isMacAddress($ssidmac)) {
$params['mac'] = urldecode($ssidmac);
} else {
$params['ssid'] = $ssidmac;
}
break;
default:
break;
}
// generating cache key
$key = MyUtils::generateCacheKey($mode, $coords, $zoom, $params);
// try to find in cache
if (self::CACHE_ON && $mode != self::MODE_CALCULATED) {
$img = $this->cache->load($key);
if ($img != null) {
echo $img;
return;
}
}
// get data and generate tile of overlay
switch ($mode) {
case self::MODE_SEARCH:
$params['coords'] = $coords;
$nets = $this->oWifiManager->getNetsByParams($params, array('ssid,mac,latitude,longitude,id_source'));
$img = $this->overlayRenderer->drawModeAll($coords, $nets);
break;
case self::MODE_HIGHLIGHT:
if (!empty($params)) {
$params['coords'] = $coords;
$params[$params['by']] = $params['val'];
unset($params['by']);
unset($params['val']);
$highlightedIds = $this->oWifiManager->getNetsByParams($params, array('id'));
$allNets = $this->oWifiManager->getNetsByParams(array('coords' => $params['coords']), array('id,ssid,mac,latitude,longitude,id_source'));
$img = $this->overlayRenderer->drawModeHighlight($coords, $allNets, $highlightedIds);
} else {
$nets = $this->wifiManager->getAllNetsInLatLngRange($coords, array('latitude', 'longitude', 'ssid', 'mac', 'id_source'), true);
$img = $this->overlayRenderer->drawModeAll($coords, $nets);
}
break;
case self::MODE_ONE:
$nets = $this->wifiManager->getNetsModeSearch($coords, $params);
$img = $this->overlayRenderer->drawModeOne($coords, $nets);
break;
case self::MODE_CALCULATED:
$net = $this->wifiManager->getWifiById($this->getHttpRequest()->getQuery('a'));
$lat = $net->getLatitude();
$lon = $net->getLongitude();
$lat1 = doubleval($lat) - 0.003;
$lat2 = doubleval($lat) + 0.003;
$lon1 = doubleval($lon) - 0.003 / 2;
$lon2 = doubleval($lon) + 0.003 / 2;
$coordsNew = new Coords($lat1, $lat2, $lon1, $lon2);
$nets = $this->wifiManager->getNetsModeSearch($coordsNew, array('mac' => $net->getMac()));
$nets2 = $this->wifiManager->getNetsModeSearch($coords, array('mac' => $net->getMac()));
$latt = 0;
$lont = 0;
foreach ($nets as $net) {
$latt += $net->getLatitude();
$lont += $net->getLongitude();
}
$lat_avg = $latt / (double) count($nets);
$lon_avg = $lont / (double) count($nets);
$net = new Wifi();
$net->setLatitude($lat_avg);
$net->setLongitude($lon_avg);
$img = $this->overlayRenderer->drawCalculated($coords, $nets2, $net);
break;
default:
$nets = $this->wifiManager->getAllNetsInLatLngRange($coords, array('latitude', 'longitude', 'ssid', 'mac', 'id_source'), true);
$img = $this->overlayRenderer->drawModeAll($coords, $nets);
break;
}
$image = MyUtils::image2string($img);
$img = null;
// save generated image to cache
if (self::CACHE_ON && $mode != self::MODE_CALCULATED) {
$this->cache->save($key, $image, array(Cache::EXPIRE => time() + self::$cacheExpire[$zoom]));
}
echo $image;
return;
}
/**
* CRON -> run every 1 HOUR (?)
* get one use created DownloadRequest, divide it by wifi density and add calculated records to wigle download queue
*
* @throws \Nette\Application\AbortException
*/
public function renderProcessWigleRequest()
{
MyUtils::setIni(1200, '256M');
$req = $this->downloadRequest->getEldestDownloadRequest(Service\WigleDownload::ID_SOURCE);
if ($req) {
$coords = new Coords($req->lat_start, $req->lat_end, $req->lon_start, $req->lon_end);
$this->downloadQueue->generateLatLngDownloadArray($coords);
$total_count = count($this->downloadQueue->getGeneratedCoords());
$this->downloadQueue->save($req->id);
$this->downloadRequest->setProcessed($req, $total_count);
}
$this->terminate();
}
