Add option to use a known CDN for AJAX libraries

git-svn-id: http://dev.piwik.org/svn/trunk@1499 59fd770c-687e-43c8-a1e3-f5a4ff64c105

config/global.ini.php

@@ -127,6 +127,10 @@ datatable_archiving_maximum_rows_actions = 500
 ; maximum number of rows for pages in categories (sub pages, when clicking on the + for a page category)
 datatable_archiving_maximum_rows_subtable_actions = 100
 
+; by default, Piwik uses self-hosted AJAX libraries.
+; If set to 1, Piwik uses a Content Distribution Network
+use_ajax_cdn = 0
+
 [Tracker]
 ; set to 0 if you want to stop tracking the visitors. Useful if you need to stop all the connections on the DB.
 record_statistics			= 1

core/SmartyPlugins/outputfilter.ajaxcdn.php

+<?php
+/**
+ * Piwik - Open source web analytics
+ * 
+ * @link http://piwik.org
+ * @license http://www.gnu.org/licenses/gpl-3.0.html Gpl v3 or later
+ * @version $Id$
+ * 
+ * @category Piwik
+ * @package SmartyPlugins
+ */
+
+/**
+ * Smarty AJAX Libraries CDN outputfilter plugin
+ *
+ * File:     outputfilter.ajaxcdn.php<br>
+ * Type:     outputfilter<br>
+ * Name:     ajaxcdn<br>
+ * Date:     Oct 13, 2009<br>
+ * Purpose:  use AJAX Libraries Content Distribution Network<br>
+ * Install:  Drop into the plugin directory, call
+ *           <code>$smarty->load_filter('output','ajaxcdn');</code>
+ *           from application.
+ * @author   Anthon Pang <apang at softwaredevelopment dot ca>
+ * @version  1.0
+ * @param string
+ * @param Smarty
+ */
+function smarty_outputfilter_ajaxcdn($source, &$smarty)
+{
+	$use_ajax_cdn = Zend_Registry::get('config')->General->use_ajax_cdn;
+	if(!$use_ajax_cdn)
+	{
+		return $source;
+	}
+
+	$pattern = array(
+		'~<script type="text/javascript" src="libs/jquery/jquery\.js([^"]*)">~',
+		'~<script type="text/javascript" src="libs/jquery/jqueryui\.js([^"]*)">~',
+		'~<script type="text/javascript" src="libs/swfobject/swfobject\.js([^"]*)">~',
+	);
+
+	$replace = array(
+		'<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.2.6/jquery.min.js">',
+		'<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jqueryui/1.7.2/jquery-ui.min.js">',
+		'<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/swfobject/2.2/swfobject.js">',
+	);
+
+	return preg_replace($pattern, $replace, $source);
+}

core/SmartyPlugins/outputfilter.cachebuster.php

@@ -21,7 +21,7 @@
  *           of external CSS stylesheets and
  *           JavaScript scripts<br>
  * Install:  Drop into the plugin directory, call
- *           <code>$smarty->assign('tag','XXXX');</code>
+ *           <code>$smarty->assign('tag', 'some_unique_tag');</code>
  *           <code>$smarty->load_filter('output','cachebuster');</code>
  *           from application.
  * @author   Anthon Pang <apang at softwaredevelopment dot ca>
@@ -41,7 +41,7 @@ function smarty_outputfilter_cachebuster($source, &$smarty)
 
 	$replace = array(
 		'<script type="text/javascript" src="$1?'. $tag .'">',
-		'<script src="$1?'. $tag .'" type="text/javascript">',
+		'<script type="text/javascript" src="$1?'. $tag .'">',
 		'<link rel="stylesheet" type="text/css" href="$1?'. $tag .'" />',
 	);
 

core/View.php

@@ -59,7 +59,7 @@ class Piwik_View implements Piwik_iView
 		if($filter)
 		{
 			$this->smarty->load_filter('output', 'cachebuster');
-
+			$this->smarty->load_filter('output', 'ajaxcdn');
 			$this->smarty->load_filter('output', 'trimwhitespace');
 		}