readme.txt

@@ -4,7 +4,7 @@ Donate link: https://www.paypal.com/cgi-bin/webscr?cmd=_donations&business=basti
 Tags: maps, gpx, gps, graph, google maps, google chart, track, garmin
 Requires at least: 2.0.0
 Tested up to: 3.3
-Stable tag: 1.1.4
+Stable tag: 1.1.5
 License: GPLv2 or later
 
 Draws a gpx track with altitude graph
@@ -79,6 +79,9 @@ Yes!
 2. Admin area - Settings
 
 == Changelog ==
+= 1.1.5 =
+* implemented cache (the plugin is much faster, especially on slow servers or external gpx)
+* minor bug fixes
 = 1.1.4 =
 * improved admin area
 * added miles/feet unit of measure 
@@ -121,6 +124,7 @@ Yes!
 * Initial release.
 
 == Upgrade Notice ==
+= 1.1.5 =
 = 1.1.4 =
 = 1.1.3 =
 = 1.1.2 =

wp-gpx-maps.php

@@ -3,7 +3,7 @@
 Plugin Name: WP-GPX-Maps
 Plugin URI: http://www.darwinner.it/
 Description: Draws a gpx track with altitude graph
-Version: 1.1.4
+Version: 1.1.5
 Author: Bastianon Massimo
 Author URI: http://www.pedemontanadelgrappa.it/
 License: GPL
@@ -85,6 +85,35 @@ function handle_WP_GPX_Maps_Shortcodes($attr, $content='')
 	
 	$r = rand(1,5000000);
 
+	$cacheFileName = md5($gpx.$w.$mh.$mt.$gh.$showW.$donotreducegpx.$pointsoffset);
+	$gpxcache = gpxCacheFolderPath();
+	
+	if(!(file_exists($gpxcache) && is_dir($gpxcache)))
+	{
+		@mkdir($gpxcache,0755,true);
+	}
+	
+	$gpxcache.= DIRECTORY_SEPARATOR.$cacheFileName.".tmp";
+	
+	// Try to load cache
+	if (file_exists($gpxcache))
+	{
+		try {
+			$cache_str = file_get_contents($gpxcache);
+			$cache_obj = unserialize($cache_str);
+			$points_maps = $cache_obj["points_maps"];
+			$points_graph = $cache_obj["points_graph"];
+			$waypoints = $cache_obj["waypoints"];
+		} catch (Exception $e) {
+			$points_maps= '';
+			$points_graph= '';
+			$waypoints= '';
+		}
+	}
+	
+	if ($points_maps == '')
+	{
+
 		$sitePath = sitePath();
 		
 		$gpx = trim($gpx);
@@ -136,6 +165,15 @@ function handle_WP_GPX_Maps_Shortcodes($attr, $content='')
 			$points_graph = "";	
 		} 	
 		
+		@file_put_contents($gpxcache, 
+						   serialize(array("points_maps" => $points_maps, 
+											"points_graph" => $points_graph, 
+											"waypoints" => $waypoints)
+									), 
+						   LOCK_EX);
+	    @chmod($gpxcache,0755);
+	}
+	
 	$output = '
 		<div id="wpgpxmaps_'.$r.'" style="clear:both;">
 			<div id="map_'.$r.'" style="width:'.$w.'; height:'.$mh.'"></div>

wp-gpx-maps_Utils.php

@@ -15,6 +15,14 @@
 		return str_replace(array('/', '\\'), DIRECTORY_SEPARATOR, $ret);
 	}
 	
+	function gpxCacheFolderPath()
+	{
+		$upload_dir = wp_upload_dir();
+		$uploadsPath = $upload_dir['basedir'];	
+		$ret = $uploadsPath.DIRECTORY_SEPARATOR."gpx".DIRECTORY_SEPARATOR."cache";
+		return str_replace(array('/', '\\'), DIRECTORY_SEPARATOR, $ret);
+	}
+	
 	function relativeGpxFolderPath()
 	{
 		$sitePath = sitePath();
@@ -23,6 +31,43 @@
 		return str_replace(array('/', '\\'), DIRECTORY_SEPARATOR, $ret);
 	}
 	
+	function recursive_remove_directory($directory, $empty=FALSE)
+	{
+		if(substr($directory,-1) == '/')
+		{
+			$directory = substr($directory,0,-1);
+		}
+		if(!file_exists($directory) || !is_dir($directory))
+		{
+			return FALSE;
+		}elseif(is_readable($directory))
+		{
+			$handle = opendir($directory);
+			while (FALSE !== ($item = readdir($handle)))
+			{
+				if($item != '.' && $item != '..')
+				{
+					$path = $directory.'/'.$item;
+					if(is_dir($path)) 
+					{
+						recursive_remove_directory($path);
+					}else{
+						unlink($path);
+					}
+				}
+			}
+			closedir($handle);
+			if($empty == FALSE)
+			{
+				if(!rmdir($directory))
+				{
+					return FALSE;
+				}
+			}
+		}
+		return TRUE;
+	}
+
 	function getPoints($gpxPath,$gpxOffset = 10, $donotreducegpx)
 	{
 

wp-gpx-maps_admin.php

@@ -21,6 +21,7 @@ function ilc_admin_tabs( $current  ) {
 
 function WP_GPX_Maps_html_page() {
 	$realGpxPath = gpxFolderPath();
+	$cacheGpxPath = gpxCacheFolderPath();
 	$relativeGpxPath = relativeGpxFolderPath();
 	$relativeGpxPath = str_replace("\\","/", $relativeGpxPath);
 	$gpxRegEx = '/.gpx$/';
@@ -42,7 +43,7 @@ function WP_GPX_Maps_html_page() {
 	}
 	else
 	{
-		if (!@mkdir($realGpxPath,755,true)) {
+		if (!@mkdir($realGpxPath,0755,true)) {
 			echo '<div class="error" style="padding:10px">
 					Can\'t create <b>'.$realGpxPath.'</b> folder. Please create it and make it writable!<br />
 					If not, you will must update the file manually!
@@ -50,6 +51,20 @@ function WP_GPX_Maps_html_page() {
 		}
 	}
 	
+	if(file_exists($cacheGpxPath) && is_dir($cacheGpxPath))
+	{
+		//dir exsist!
+	}
+	else
+	{
+		if (!@mkdir($cacheGpxPath,0755,true)) {
+			echo '<div class="error" style="padding:10px">
+					Can\'t create <b>'.$cacheGpxPath.'</b> folder. Please create it and make it writable!<br />
+					If not, cache will not created and your site could be slower!
+				  </div>';
+		}
+	}
+
 	ilc_admin_tabs($tab);	
 	
 	if ($tab == "tracks")

wp-gpx-maps_admin_tracks.php

@@ -9,12 +9,18 @@
 		}
 	}
 	
+	if ( isset($_POST['clearcache']) )
+	{
+		echo "pulisco la cahce";
+		recursive_remove_directory($cacheGpxPath,true);
+	}
+
 	if ( is_writable ( $realGpxPath ) ){
 	
 	?>
 	
 		<div class="tablenav top">
-			<form enctype="multipart/form-data" method="POST">
+			<form enctype="multipart/form-data" method="POST" style="float:left; margin:5px 20px 0 0">
 				Choose a file to upload: <input name="uploadedfile" type="file" onchange="submitgpx(this);" />
 				<?php
 					if ( isset($_FILES['uploadedfile']) )									
@@ -35,6 +41,11 @@
 					}
 				?>
 			</form>
+			
+			<form method="POST" style="float:left; margin:5px 20px 0 0">
+				<input type="submit" name="clearcache" value="Clear Cache" />
+			</form>		
+			
 		</div>	
 	
 	<?php