add tile api

.gitignore

@@ -12,3 +12,4 @@
 /files/**/*.JPEG
 /files/**/*.png
 /files/**/*.PNG
+/cache/*.tile

inc/cacher.php

@@ -0,0 +1,103 @@
+<?php
+
+class Cacher extends PhpObject
+{
+	const CACHE_FOLDER = 'cache/';
+	const DATA_RETENTION = 60 * 60 * 24 * 90; //3 months
+	
+	private $sPattern;
+	
+	//Params
+	private $sId;
+	private $iX;
+	private $iY;
+	private $iZ;
+	private $sToken;
+	private $asDomains;
+	
+	public function __construct($sPattern, $sId='')
+	{
+		parent::__construct(__CLASS__, Settings::DEBUG);
+		$this->setPattern($sPattern);
+		$this->setId($sId);
+		$this->iX = 0;
+		$this->iY = 0;
+		$this->iZ = 0;
+		$this->sToken = '';
+		$this->asDomains = array();
+	}
+	
+	public function setId($sId) {
+		$this->sId = $sId;
+	}
+	
+	public function setPattern($sPattern) {
+		$this->sPattern = $sPattern;
+	}
+	
+	public function setToken($sToken) {
+		$this->sToken = $sToken;
+	}
+	
+	public function setDomains($asDomains) {
+		$this->asDomains = $asDomains;
+	}
+	
+	public function setGeoPos($iX, $iY, $iZ) {
+		$this->iX = $iX;
+		$this->iY = $iY;
+		$this->iZ = $iZ;
+	}
+	
+	public function pushTile($iX, $iY, $iZ) {
+		$this->setGeoPos($iX, $iY, $iZ);
+		$sTilePath = $this->getFilePath();
+		if(!$this->isFileAvailable($sTilePath)) {
+			$oCurl = curl_init();
+			curl_setopt($oCurl, CURLOPT_URL, $this->getUrl());
+			curl_setopt($oCurl, CURLOPT_HEADER, false);
+			curl_setopt($oCurl, CURLOPT_RETURNTRANSFER, true);
+			curl_setopt($oCurl, CURLOPT_USERAGENT, $_SERVER['HTTP_USER_AGENT']);
+			curl_setopt($oCurl, CURLOPT_REFERER, 'http://spot.lutran.fr');
+			$sContent = curl_exec($oCurl);
+			curl_close($oCurl);
+			
+			file_put_contents($sTilePath, $sContent);
+		}
+		else $sContent = file_get_contents($sTilePath);
+		
+		header('Content-type: '.mime_content_type($sTilePath));
+		return $sContent;
+	}
+	
+	public function getUrl() {
+		$asParams = $this->getUrlParams();
+		$sUrl = $this->sPattern;
+		foreach($asParams as $sParam=>$sValue) {
+			$sUrl = str_replace('{'.$sParam.'}', $sValue, $sUrl);
+		}
+		return $sUrl;
+	}
+	
+	private function isFileAvailable($sTilePath) {
+		if(!file_exists($sTilePath)) return false;
+		else return (time() - filemtime($sTilePath) < self::DATA_RETENTION);
+	}
+	
+	private function getFilePath() {
+		$asParams = $this->getUrlParams();
+		return self::CACHE_FOLDER.'/'.$asParams['id'].'_'.$asParams['x'].'_'.$asParams['y'].'_'.$asParams['z'].'.tile';
+	}
+	
+	private function getUrlParams() {
+		return array(
+			'id'	=> $this->sId,
+			'x'		=> $this->iX,
+			'y'		=> $this->iY,
+			'z'		=> $this->iZ,
+			'token' => $this->sToken,
+			's'		=> empty($this->asDomains)?'':$this->asDomains[array_rand($this->asDomains)]
+		);
+	}
+}
+

inc/spot.php

@@ -28,6 +28,7 @@ class Spot extends Main
 	public function __construct($oClassManagement, $sProcessPage)
 	{
 		parent::__construct($oClassManagement, $sProcessPage);
+		$oClassManagement->incClass('cacher', true);
 	}
 	
 	protected function install()
@@ -332,6 +333,34 @@ class Spot extends Main
 		return $oUploader->getBody();
 	}
 	
+	public function getTile($sMapId, $iX, $iY, $iZ)
+	{
+		if(isset($_SERVER['HTTP_REFERER']) && $_SERVER['HTTP_REFERER'] == $this->asContext['serv_name']) {
+			$asDomains = array();
+			switch($sMapId) {
+				case 'mapbox.satellite':
+				case 'mapbox.streets':
+					$sPattern = 'https://api.tiles.mapbox.com/v4/{id}/{z}/{x}/{y}@2x.png?access_token={token}';
+					$sToken = Settings::MAPBOX_KEY;
+					break;
+				case 'linz':
+					$sPattern = 'http://tiles-{s}.data-cdn.linz.govt.nz/services;key={token}/tiles/v4/layer=50767/EPSG:3857/{z}/{x}/{y}.png';
+					$sToken = Settings::LINZ_KEY;
+					$asDomains = array('a', 'b', 'c', 'd');
+					break;
+			}
+			$oCacher = new Cacher($sPattern, $sMapId);
+			$oCacher->setToken($sToken);
+			$oCacher->setDomains($asDomains);
+			
+			return $oCacher->pushTile($iX, $iY, $iZ);
+		}
+		else {
+			header('HTTP/1.1 403 Forbidden');
+			exit;
+		}
+	}
+	
 	public static function getPicInfo($sPicPath)
 	{
 		$iPicTimeStamp = $iPicTakenTimeStamp = $iPicFileTimeStamp = 0;

index.php

@@ -21,6 +21,10 @@ $sPage = isset($_GET['p'])?$_GET['p']:'index';
 $sName = isset($_GET['name'])?$_GET['name']:'';
 $sContent = isset($_GET['content'])?$_GET['content']:'';
 $iChunk = isset($_GET['chunk'])?$_GET['chunk']:0;
+$sId = isset($_REQUEST['id'])?$_REQUEST['id']:'';
+$iX = isset($_GET['x'])?$_GET['x']:0;
+$iY = isset($_GET['y'])?$_GET['y']:0;
+$iZ = isset($_GET['z'])?$_GET['z']:0;
 
 //Initiate class
 $oSpot = new Spot($oClassManagement, __FILE__);
@@ -42,6 +46,9 @@ if($sAction!='')
 		case 'add_post':
 			$sResult = $oSpot->addPost($sName, $sContent);
 			break;
+		case 'tile':
+			$sResult = $oSpot->getTile($sId, $iX, $iY, $iZ);
+			break;
 		default:
 			$sResult = Spot::getJsonResult(false, Spot::NOT_FOUND);
 	}

masks/messages.html

@@ -44,6 +44,7 @@ oSpot.pageInit = function(asHash)
 		self.tmp('simple-bar').getScrollElement().addEventListener('scroll', onFeedScroll);
 		self.tmp('infowindow', 'boolean');
 		self.tmp('map_offset', -0.3);
+		self.tmp('tile_api', '?a=tile&id={id}&z={z}&x={x}&y={y}');
 		
 		//Centering map
 		var agCenter = {lat:0, lng:0};
@@ -84,10 +85,10 @@ oSpot.pageInit = function(asHash)
 		}
 		
 		//Tile layers
-		var oMapBoxSat		= L.tileLayer('https://api.tiles.mapbox.com/v4/{id}/{z}/{x}/{y}@2x.png?access_token='+self.vars('mapbox_key'), {id: 'mapbox.satellite', minZoom: 0, maxZoom: 19}),
+		var oMapBoxSat		= L.tileLayer(self.tmp('tile_api'), {id: 'mapbox.satellite', minZoom: 0, maxZoom: 19}),
 			//oOpenTopoMap	= L.tileLayer('https://{s}.tile.opentopomap.org/{z}/{x}/{y}.png', {id: 'OpenTopoMap', minZoom: 2, maxZoom: 19});
 			//oMapBoxStreet	= L.tileLayer('https://api.tiles.mapbox.com/v4/{id}/{z}/{x}/{y}.png?access_token='+self.vars('mapbox_key'), {id: 'mapbox.streets'}),
-			oLinz = L.tileLayer('http://tiles-{s}.data-cdn.linz.govt.nz/services;key=92193c0af382409a98694d3e4aa8bd46/tiles/v4/layer=50767/EPSG:3857/{z}/{x}/{y}.png', {id: 'Linz', maxZoom: 17, continuousWorld: true, attribution: 'Sourced from LINZ. CC BY 4.0', subdomains:'abcd'});
+			oLinz 			= L.tileLayer(self.tmp('tile_api'), {id: 'linz', maxZoom: 17, continuousWorld: true, attribution: 'Sourced from LINZ. CC BY 4.0'});
 			//oGoogleSatellite = L.tileLayer('https://mt.google.com/vt/lyrs=y&x={x}&y={y}&z={z}', {id: 'GoogleSatellite', minZoom: 1, maxZoom: 22});
 		
 		//Map