/usr/share/php/kohana2/modules/gmaps/libraries/Gmap.php is in libkohana2-modules-php 2.3.4-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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/**
* Google Maps API integration.
*
* $Id: Gmap.php 4302 2009-05-01 02:49:41Z kiall $
*
* @package Gmaps
* @author Kohana Team
* @copyright (c) 2007-2008 Kohana Team
* @license http://kohanaphp.com/license.html
*/
class Gmap_Core {
// Map settings
protected $id;
protected $options;
protected $center;
protected $control;
protected $overview_control;
protected $type_control = FALSE;
// Map types
protected $types = array();
protected $default_types = array
(
'G_NORMAL_MAP','G_SATELLITE_MAP','G_HYBRID_MAP','G_PHYSICAL_MAP'
);
// Markers icons
protected $icons = array();
// Map markers
protected $markers = array();
/**
* Set the GMap center point.
*
* @param string $id HTML map id attribute
* @param array $options array of GMap constructor options
* @return void
*/
public function __construct($id = 'map', $options = NULL)
{
// Set map ID and options
$this->id = $id;
$this->options = new Gmap_Options((array) $options);
}
/**
* Return GMap javascript url
*
* @param string API component
* @param array API parameters
* @return string
*/
public static function api_url($component = 'jsapi', $parameters = NULL, $separator = '&')
{
if (empty($parameters['ie']))
{
// Set input encoding to UTF-8
$parameters['ie'] = 'utf-8';
}
if (empty($parameters['oe']))
{
// Set ouput encoding to input encoding
$parameters['oe'] = $parameters['ie'];
}
if (empty($parameters['key']))
{
// Set the API key last
$parameters['key'] = Kohana::config('gmaps.api_key');
}
return 'http://'.Kohana::config('gmaps.api_domain').'/'.$component.'?'.http_build_query($parameters, '', $separator);
}
/**
* Retrieves the latitude and longitude of an address.
*
* @param string $address address
* @return array longitude, latitude
*/
public static function address_to_ll($address)
{
$lat = NULL;
$lon = NULL;
if ($xml = Gmap::address_to_xml($address))
{
// Get the latitude and longitude from the Google Maps XML
// NOTE: the order (lon, lat) is the correct order
list ($lon, $lat) = explode(',', $xml->Response->Placemark->Point->coordinates);
}
return array($lat, $lon);
}
/**
* Retrieves the XML geocode address lookup.
* ! Results of this method are cached for 1 day.
*
* @param string $address adress
* @return object SimpleXML
*/
public static function address_to_xml($address)
{
static $cache;
// Load Cache
if ($cache === NULL)
{
$cache = Cache::instance();
}
// Address cache key
$key = 'gmap-address-'.sha1($address);
if ($xml = $cache->get($key))
{
// Return the cached XML
return simplexml_load_string($xml);
}
else
{
// Setup the retry counter and retry delay
$remaining_retries = Kohana::config('gmaps.retries');
$retry_delay = Kohana::config('gmaps.retry_delay');
// Set the XML URL
$xml_url = Gmap::api_url('maps/geo', array('output' => 'xml', 'q' => $address), '&');
// Disable error reporting while fetching the feed
$ER = error_reporting(~E_NOTICE);
// Enter the request/retry loop.
while ($remaining_retries)
{
// Load the XML
$xml = simplexml_load_file($xml_url);
if (is_object($xml) AND ($xml instanceof SimpleXMLElement) AND (int) $xml->Response->Status->code === 200)
{
// Cache the XML
$cache->set($key, $xml->asXML(), array('gmaps'), 86400);
// Since the geocode was successful, theres no need to try again
$remaining_retries = 0;
}
elseif ((int) $xml->Response->Status->code === 620)
{
/* Goole is rate limiting us - either we're making too many requests too fast, or
* we've exceeded the 15k per 24hour limit. */
// Reduce the number of remaining retries
$remaining_retries--;
if ( ! $remaining_retries)
return FALSE;
// Sleep for $retry_delay microseconds before trying again.
usleep($retry_delay);
}
else
{
// Invalid XML response
$xml = FALSE;
// Dont retry.
$remaining_retries = 0;
}
}
// Turn error reporting back on
error_reporting($ER);
}
return $xml;
}
/**
* Returns an image map
*
* @param mixed $lat latitude or an array of marker points
* @param float $lon longitude
* @param integer $zoom zoom level (1-19)
* @param string $type map type (roadmap or mobile)
* @param integer $width map width
* @param integer $height map height
* @return string
*/
public static function static_map($lat = 0, $lon = 0, $zoom = 6, $type = NULL, $width = 300, $height = 300)
{
// Valid map types
$types = array('roadmap', 'mobile');
// Maximum width and height are 640px
$width = min(640, abs($width));
$height = min(640, abs($height));
$parameters['size'] = $width.'x'.$height;
// Minimum zoom = 0, maximum zoom = 19
$parameters['zoom'] = max(0, min(19, abs($zoom)));
if (in_array($type, $types))
{
// Set map type
$parameters['maptype'] = $type;
}
if (is_array($lat))
{
foreach ($lat as $_lat => $_lon)
{
$parameters['markers'][] = $_lat.','.$_lon;
}
$parameters['markers'] = implode('|', $parameters['markers']);
}
else
{
$parameters['center'] = $lat.','.$lon;
}
return Gmap::api_url('staticmap', $parameters);
}
/**
* Set the GMap center point.
*
* @chainable
* @param float $lat latitude
* @param float $lon longitude
* @param integer $zoom zoom level (1-19)
* @param string $type default map type
* @return object
*/
public function center($lat, $lon, $zoom = 6, $type = 'G_NORMAL_MAP')
{
$zoom = max(0, min(19, abs($zoom)));
$type = ($type != 'G_NORMAL_MAP' AND in_array($type, $this->default_types, true)) ? $type : 'G_NORMAL_MAP';
// Set center location, zoom and default map type
$this->center = array($lat, $lon, $zoom, $type);
return $this;
}
/**
* Set the GMap controls size.
*
* @chainable
* @param string $size small or large
* @return object
*/
public function controls($size = NULL)
{
// Set the control type
$this->control = (strtolower($size) == 'small') ? 'Small' : 'Large';
return $this;
}
/**
* Set the GMap overview map.
*
* @chainable
* @param integer $width width
* @param integer $height height
* @return object
*/
public function overview($width = '', $height = '')
{
$size = (is_int($width) AND is_int($height)) ? 'new GSize('.$width.','.$height.')' : '';
$this->overview_control = 'map.addControl(new google.maps.OverviewMapControl('.$size.'));';
return $this;
}
/**
* Set the GMap type controls.
* by default renders G_NORMAL_MAP, G_SATELLITE_MAP, and G_HYBRID_MAP
*
* @chainable
* @param string $type map type
* @param string $action add or remove map type
* @return object
*/
public function types($type = NULL, $action = 'remove')
{
$this->type_control = TRUE;
if ($type !== NULL AND in_array($type, $this->default_types, true))
{
// Set the map type and action
$this->types[$type] = (strtolower($action) == 'remove') ? 'remove' : 'add';
}
return $this;
}
/**
* Create a custom marker icon
*
* @chainable
* @param string $name icon name
* @param array $options icon options
* @return object
*/
public function add_icon($name, array $options)
{
// Add a new cusotm icon
$this->icons[] = new Gmap_Icon($name, $options);
return $this;
}
/**
* Set the GMap marker point.
*
* @chainable
* @param float $lat latitude
* @param float $lon longitude
* @param string $html HTML for info window
* @param array $options marker options
* @return object
*/
public function add_marker($lat, $lon, $html = '', $options = array())
{
// Add a new marker
$this->markers[] = new Gmap_Marker($lat, $lon, $html, $options);
return $this;
}
/**
* Render the map into GMap Javascript.
*
* @param string $template template name
* @param array $extra extra fields passed to the template
* @return string
*/
public function render($template = 'gmaps/javascript', $extra = array())
{
// Latitude, longitude, zoom and default map type
list ($lat, $lon, $zoom, $default_type) = $this->center;
// Map
$map = 'var map = new google.maps.Map2(document.getElementById("'.$this->id.'"));';
// Map controls
$controls[] = empty($this->control) ? '' : 'map.addControl(new google.maps.'.$this->control.'MapControl());';
// Map Types
if ($this->type_control === TRUE)
{
if (count($this->types) > 0)
{
foreach($this->types as $type => $action)
$controls[] = 'map.'.$action.'MapType('.$type.');';
}
$controls[] = 'map.addControl(new google.maps.MapTypeControl());';
}
if ( ! empty($this->overview_control))
$controls[] = $this->overview_control;
// Map centering
$center = 'map.setCenter(new google.maps.LatLng('.$lat.', '.$lon.'), '.$zoom.', '.$default_type.');';
$data = array_merge($extra, array
(
'map' => $map,
'options' => $this->options,
'controls' => implode("\n", $controls),
'center' => $center,
'icons' => $this->icons,
'markers' => $this->markers,
));
// Render the Javascript
return View::factory($template, $data)->render();
}
} // End Gmap
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