function process_geomap($MAPCFG, $map_name, &$map_config)
{
$params = $MAPCFG->getSourceParams();
list($image_name, $image_path, $data_path) = geomap_files($params);
// Load the list of locations
$locations = geomap_get_locations($params);
// This source does not directly honor the existing map configs. It saves
// the existing config to use it later for modifying some object parameters.
// The existing map config must not create new objects. The truth about the
// existing objects comes only from this source.
$saved_config = $map_config;
$map_config = array();
$iconset = $params['iconset'];
list($icon_w, $icon_h) = iconset_size($iconset);
// Adapt the global section
$map_config[0] = $saved_config[0];
$map_config[0]['map_image'] = $image_name . '?' . time() . '.png';
$map_config[0]['iconset'] = $iconset;
// Now add the objects to the map
foreach ($locations as $loc) {
$object_id = $MAPCFG->genObjId($loc['name']);
$map_config[$object_id] = array('type' => 'host', 'host_name' => $loc['name'], 'iconset' => $iconset, 'object_id' => $object_id, 'alias' => $loc['alias'], 'lat' => $loc['lat'], 'long' => $loc['long']);
if (isset($loc['backend_id'])) {
$map_config[$object_id]['backend_id'] = array($loc['backend_id']);
}
}
unset($locations);
// Now apply the filters. Though the map can be scaled by the filtered hosts
process_filter($MAPCFG, $map_name, $map_config, $params);
// Terminate empty views
if (count($map_config) <= 1) {
throw new GeomapError(l('Got empty map after filtering. Terminate rendering geomap.'));
}
// Now detect the upper and lower bounds of the locations to display
// Left/upper and right/bottom
// north/south
$min_lat = 90;
$max_lat = -90;
// east/west
$min_long = 180;
$max_long = -180;
foreach ($map_config as $obj) {
if ($obj['type'] == 'global') {
continue;
}
if ($obj['lat'] < $min_lat) {
$min_lat = $obj['lat'];
}
if ($obj['lat'] > $max_lat) {
$max_lat = $obj['lat'];
}
if ($obj['long'] < $min_long) {
$min_long = $obj['long'];
}
if ($obj['long'] > $max_long) {
$max_long = $obj['long'];
}
}
// Fix equal coordinates (Simply add some space on all sides)
$min_lat -= $params['geomap_border'];
$max_lat += $params['geomap_border'];
$min_long -= $params['geomap_border'];
$max_long += $params['geomap_border'];
// FIXME: Too small min/max? What is the minimum bbox size?
//echo $min_lat . ' - ' . $max_lat. ' - '. $mid_lat.'\n';
//echo $min_long . ' - ' . $max_long. ' - ' . $mid_long;
if (!$params['width'] || !$params['height']) {
throw new GeomapError(l('Missing mandatory "width" and "height" parameters."'));
}
// Using this API: http://pafciu17.dev.openstreetmap.org/
$url = cfg('global', 'geomap_server') . '?module=map' . '&width=' . $params['width'] . '&height=' . $params['height'] . '&type=' . $params['geomap_type'];
// The geomap zoom seems to be something different than the nagvis zoom. Use
// the dedicated geomap_zoom parameter
if (isset($params['geomap_zoom']) && $params['geomap_zoom'] != '') {
$mid_lat = ($min_lat + $max_lat) / 2;
$mid_long = ($min_long + $max_long) / 2;
$url .= '&zoom=' . $params['geomap_zoom'] . '¢er=' . $mid_long . ',' . $mid_lat;
} else {
$url .= '&bbox=' . $min_long . ',' . $max_lat . ',' . $max_long . ',' . $min_lat;
}
//file_put_contents('/tmp/123', $url);
// Fetch the background image when needed
if (!file_exists($image_path) || geomap_source_age($params) > filemtime($image_path)) {
// Allow/enable proxy
$contents = geomap_get_contents($url);
file_put_contents($image_path, $contents);
}
// Fetch the map bounds when needed
if (!file_exists($data_path) || geomap_source_age($params) > filemtime($data_path)) {
// Get the lat/long of the image bounds. The api adds a border area to the
// generated image. This is good since this makes the outer nodes not touch
// the border of the image. But this makes calculation of the x/y coords
// problematic. I found a parameter which tells us the long/lat coordinates
// of the image bounds.
// http://pafciu17.dev.openstreetmap.org/?module=map&bbox=6.66748,53.7278,14.5533,51.05&width=1500&height=557&type=osmarender&bboxReturnFormat=csv
// 2.373046875,54.239550531562,18.8525390625,50.499452103968
$data_url = $url . '&bboxReturnFormat=csv';
$contents = geomap_get_contents($data_url);
if (!$contents || ord($contents[0]) == 137 && ord($contents[1]) == 80 && ord($contents[2]) == 78) {
// Got an png image as answer - catch this!
throw new GeomapError(l('Got invalid response from "[U]". This is mostly caused by an unhandled request.', array('U' => $data_url)));
}
if (!preg_match('/^-?[0-9]+\\.?[0-9]*,-?[0-9]+\\.?[0-9]*,-?[0-9]+\\.?[0-9]*,-?[0-9]+\\.?[0-9]*$/i', $contents)) {
throw new GeomapError(l('Got invalid data from "[U]": "[C]"', array('U' => $data_url, 'C' => json_encode($contents))));
}
file_put_contents($data_path, $contents);
$parts = explode(',', $contents);
} else {
$parts = explode(',', file_get_contents($data_path));
}
$img_left = (double) $parts[0];
$img_top = (double) $parts[1];
$img_right = (double) $parts[2];
$img_down = (double) $parts[3];
$long_diff = $img_right - $img_left;
$lat_diff = $img_top - $img_down;
$long_para = $params['width'] / $long_diff;
$lat_para = $params['height'] / $lat_diff;
$lat_mult = $params['height'] / (ProjectF($img_top) - ProjectF($img_down));
// Now add the coordinates to the map objects
foreach ($map_config as &$obj) {
if (!isset($obj['lat'])) {
continue;
}
// Calculate the lat (y) coords
$obj['y'] = round((ProjectF($img_top) - ProjectF($obj['lat'])) * $lat_mult - $icon_h / 2);
if ($obj['y'] < 0) {
$obj['y'] = 0;
}
// Calculate the long (x) coords
$obj['x'] = round($long_para * ($obj['long'] - $img_left) - $icon_w / 2);
if ($obj['x'] < 0) {
$obj['x'] = 0;
}
unset($obj['lat']);
unset($obj['long']);
}
return true;
// allow caching
}
function automap_obj($MAPCFG, &$params, &$saved_config, $obj_name)
{
$obj = automap_obj_base($MAPCFG, $params, $saved_config, $obj_name);
if ($obj_name === '<<<monitoring>>>') {
$obj['host_name'] = 'Monitoring';
$obj['type'] = 'shape';
$obj['icon_size'] = array(22);
$obj['icon'] = 'std_nagvis.png';
$obj['.width'] = 22;
$obj['.height'] = 22;
} else {
$obj['type'] = 'host';
$obj['host_name'] = $obj_name;
// Default to params iconset
if (!isset($obj['iconset'])) {
$obj['iconset'] = $params['iconset'];
}
if (!isset($obj['icon_size'])) {
$obj['icon_size'] = $params['icon_size'];
}
if ($obj['icon_size']) {
if (count($obj['icon_size']) == 1) {
$w = (int) $obj['icon_size'][0];
$h = (int) $obj['icon_size'][0];
} else {
$w = (int) $obj['icon_size'][0];
$h = (int) $obj['icon_size'][1];
}
} else {
// Calculate the size of the object for later auto positioning
$size = iconset_size($obj['iconset']);
$w = $size[0];
$h = $size[1];
}
$obj['.width'] = $w;
$obj['.height'] = $h;
}
$obj['label_show'] = $MAPCFG->getValue(0, 'label_show');
$obj['label_border'] = $MAPCFG->getValue(0, 'label_border');
$obj['label_background'] = $MAPCFG->getValue(0, 'label_background');
$obj['label_maxlen'] = $MAPCFG->getValue(0, 'label_maxlen');
// Header menu has z-index 100, this object's label the below+1
$obj['z'] = 98;
$obj['.parents'] = array();
$obj['.childs'] = array();
return $obj;
}
