Current File : /home/pacjaorg/public_html/km/administrator/components/com_djclassifieds/lib/djgeocoder.php

<?php
/**
 * @package DJ-Classifieds
 * @copyright Copyright (C) DJ-Extensions.com, All rights reserved.
 * @license http://www.gnu.org/licenses GNU/GPL
 * @author url: http://dj-extensions.com
 * @author email contact@dj-extensions.com
 */

defined('_JEXEC') or die('Restricted access');

require_once(JPATH_ROOT.'/administrator/components/com_djclassifieds/lib/djtheme.php');
require_once(JPATH_ROOT.'/administrator/components/com_djclassifieds/lib/djregion.php');
require_once(JPATH_ROOT.'/administrator/components/com_djclassifieds/lib/djimage.php');

class DJClassifiedsGeocode
{
	static private $url = "https://maps.google.com/maps/api/geocode/json";

	public static function getLocation($address, $region_id = null)
	{
		$app = JFactory::getApplication();
		$par = JComponentHelper::getParams('com_djclassifieds');
		if($par->get('map_provider', 'google') == 'none'){
			return false;
		}
		if($par->get('geolocation', '1') == '0'){
			return false;
		}

		$geo_address = $region_id ? self::getGeolocAddress($region_id, $address) : $address;

    	JPluginHelper::importPlugin('djclassifieds');
		$use_gm = 1;
		$lat_lng = $app->triggerEvent('onGeocoderGetLocation', array (&$use_gm, &$geo_address));
		$lat_lng = isset($lat_lng[0]) && is_array($lat_lng[0]) ? $lat_lng[0] : $lat_lng;
		
    	if(empty($geo_address)){
    		return false;
    	}
		
		if($use_gm){		
	        $url = self::$url."?address=".urlencode($geo_address);
	        $params = JComponentHelper::getParams( 'com_djclassifieds' );
	        if($params->get('map_api_key','')){
	        	$url .= '&key='.trim($params->get('map_api_key',''));
	        }
	        
	        $resp_json = self::curl_file_get_contents($url);
	        $resp = json_decode($resp_json, true);                
	
	        if($resp['status']='OK' && isset($resp['results'][0])){
	            $lat_lng = $resp['results'][0]['geometry']['location'];
	        }elseif(isset($resp['error_message'])){
				$app->enqueueMessage($resp['error_message'], 'error');
				return false;      	
	        }
		}

		if(empty($lat_lng) && $region_id){
			$lat_lng = self::getRegionLatLon($region_id);
		}
		
		return $lat_lng;
    }
    
	public static function getLocationPostCode($post_code, $address = '', $region_id = null)
	{
		$app = JFactory::getApplication();
		$par = JComponentHelper::getParams('com_djclassifieds');
		if($par->get('map_provider', 'google') == 'none'){
			return false;
		}
		if($par->get('geolocation', '1') == '0'){
			return false;
		}

		$geo_address = $region_id ? self::getGeolocAddress($region_id, $address) : $address;

    	JPluginHelper::importPlugin('djclassifieds');
		$use_gm = 1;
		$lat_lng = $app->triggerEvent('onGeocoderGetLocationPostCode', array (&$use_gm, &$post_code, &$geo_address));
		$lat_lng = isset($lat_lng[0]) && is_array($lat_lng[0]) ? $lat_lng[0] : $lat_lng;
    	    	
		if(!$lat_lng){ // backward compatibility for older map plugins not supporting 'onGeocoderGetLocationPostCode' event
			$lat_lng = self::getLocation($geo_address.', '.$post_code);
		}
		
		if(empty($post_code)){
    		return false;
    	}
    	
    	if($use_gm){
    		$url_zip = '';
    		if($geo_address){
    			$url_zip = '?address='.urlencode($geo_address);
    			$url = self::$url.$url_zip."&components=postal_code:".urlencode($post_code);
    		}else{
    			$url = self::$url."?components=postal_code:".urlencode($post_code);
    		}
    	
    		$params = JComponentHelper::getParams('com_djclassifieds');
    		if($params->get('map_api_key','')){
    			$url .= '&key='.trim($params->get('map_api_key',''));
    		}
    			
    		$resp_json = self::curl_file_get_contents($url);
    		$resp = json_decode($resp_json, true);

    		if($resp['status']='OK' && isset($resp['results'][0])){
    			return $resp['results'][0]['geometry']['location'];
			}elseif(!empty($resp['error_message'])){
    			JFactory::getApplication()->enqueueMessage($resp['error_message'], 'error');
    			return false;
    		}else{
    			return self::getLocation($geo_address.', '.$post_code);
    		}
    	}
    	
    	return $lat_lng;
    }

	public static function getRegionLatLon($region_id)
	{
		$db = JFactory::getDBO();
		$query = "SELECT * FROM #__djcf_regions WHERE id=".$region_id;
		$db->setQuery($query);
		$reg = $db->loadObject();
		if($reg && floatval($reg->latitude) && floatval($reg->longitude)){
			return array('lat' => $reg->latitude, 'lng' => $reg->longitude);
		}
	}
    
    public static function getAddressLatLon($lat_lng)
    {
		$app = JFactory::getApplication();
        $par = JComponentHelper::getParams('com_djclassifieds');
		if($par->get('map_provider', 'google') == 'none'){
			return false;
		}
		if($par->get('geolocation', '1') == '0'){
			return false;
		}
        
    	JPluginHelper::importPlugin( 'djclassifieds' );
		$use_gm = 1;
		$user_address = $app->triggerEvent('onGeocoderGetAddressLatLon', array (&$use_gm, &$lat_lng));
		$user_address = isset($user_address[0]) ? $user_address[0] : $user_address;

		if(isset($user_address['message'])){ // error message
			JFactory::getApplication()->enqueueMessage($user_address['message'], 'error');
    		return false;
		}

		if($use_gm){
			$url = self::$url."?latlng=".urlencode($lat_lng);
			$params = JComponentHelper::getParams( 'com_djclassifieds' );
			if($params->get('map_api_key','')){
				$url .= '&key='.$params->get('map_api_key','');
			}else{
				return false;
			}
			
			$resp_json = self::curl_file_get_contents($url);
			$resp = json_decode($resp_json, true);

			if($resp['status']='OK' && isset($resp['results'][0])){
				$user_address = $resp['results'][0]['formatted_address']; 
				return $user_address;
			}else{
				JFactory::getApplication()->enqueueMessage($resp['error_message'], 'error');
				return false;
			}
		}

		return $user_address;
    }

    static private function curl_file_get_contents($URL)
	{
		DJClassifiedsGeocode::serverFnCheck();

        $c = curl_init();
        curl_setopt($c, CURLOPT_RETURNTRANSFER, 1);
        curl_setopt($c, CURLOPT_URL, $URL);
        curl_setopt($c, CURLOPT_SSL_VERIFYPEER, false);
        curl_setopt($c, CURLOPT_SSL_VERIFYHOST, false);
        
        $contents = curl_exec($c);
        curl_close($c);

        if($contents){
			return $contents;
		}else{
			return false;
		}
    }

	static function getMarkerIconImg($par, $cat_id = null)
	{
		$cat_icon = self::getCategoryMarkerIconImg($cat_id);
		if($cat_icon){
			return $cat_icon;
		}elseif($par->get('map_marker_icon') && JFile::exists(JPATH_ROOT.'/'.DJClassifiedsImage::decodeMediaPath($par->get('map_marker_icon')))){
			return DJClassifiedsImage::decodeMediaPath($par->get('map_marker_icon'));
		}else if(JFile::exists(JPATH_ROOT.'/'.DJClassifiedsTheme::getImgAssetPath('djcf_gmicon.png'))){
			return DJClassifiedsTheme::getImgAssetPath('djcf_gmicon.png');
		}
	}

	static function getCategoryMarkerIconImg($cat_id)
	{
		if($cat_id){
			$db = JFactory::getDBO();
			$query = "SELECT map_marker_icon FROM #__djcf_categories WHERE id=".$cat_id;
			$db->setQuery($query);
			$map_marker_icon = $db->loadResult();
			if($map_marker_icon && JFile::exists(JPATH_ROOT.'/'.DJClassifiedsImage::decodeMediaPath($map_marker_icon))){
				return DJClassifiedsImage::decodeMediaPath($map_marker_icon);
			}
		}
	}

	static function getGeolocAddress($region_id, $address = null)
	{
		$address_arr = array();
		if($region_id){
			$reg_path = DJClassifiedsRegion::getParentPath($region_id);
			foreach($reg_path as $reg){
				if($reg->country || $reg->city){
					$address_arr[] = $reg->name; 
				}
			}
		}
		$address_arr = array_reverse($address_arr);
		if($address){
			$address_arr[] = $address;
		}

		$address = implode(', ', $address_arr);
		return $address;
	}

	static function serverFnCheck($fn_arr = array('curl_version', 'curl_exec'))
	{
		foreach($fn_arr as $fn){
			if(!function_exists($fn)){
				JFactory::getApplication()->enqueueMessage(JText::sprintf('COM_DJCLASSIFIEDS_SERVER_FUNCTION_NOT_FOUND', 'curl_exec'), 'error');
				return false;
			}
		}
		return true;
    }
}