Added HTML filter for slideshare.net

Conflicts:

	htdocs/lib/version.php

htdocs/lib/db/upgrade.php

@@ -856,6 +856,10 @@ function xmldb_core_upgrade($oldversion=0) {
         }
     }
 
+    if ($oldversion < 2009031000) {
+        reload_html_filters();
+    }
+
     return $status;
 
 }

htdocs/lib/htmlpurifiercustom/SlideShare.php

+<?php
+
+class HTMLPurifier_Filter_SlideShare extends HTMLPurifier_Filter
+{
+
+    public $name = 'SlideShare';
+
+    public function preFilter($html, $config, $context) {
+        $pre_regex = '#<embed\b[^>]+\bsrc="http://static.slideshare.net/swf/ssplayer2.swf\?(doc=[a-z0-9-]+)[^>]+>\s*</embed>#s';
+        $pre_replace = '<span class="slideshare-embed">\1</span>';
+        return preg_replace($pre_regex, $pre_replace, $html);
+    }
+
+    public function postFilter($html, $config, $context) {
+        $post_regex = '#<span class="slideshare-embed">(doc=[a-z0-9-]+)</span>#';
+        $post_replace = '<object width="400" height="355" data="http://static.slideshare.net/swf/ssplayer2.swf?\1">'.
+            '<param name="movie" value="http://static.slideshare.net/swf/ssplayer2.swf?\1" />'.
+            '<!--[if IE]>'.
+            '<embed style="width:400px; height:355px;" '.
+            'id="VideoPlayback" '.
+            'type="application/x-shockwave-flash" '.
+            'src="http://static.slideshare.net/swf/ssplayer2.swf?\1" '.
+            'flashvars="" '.
+            '</embed>'.
+            '<![endif]-->'.
+            '</object>';
+        return preg_replace($post_regex, $post_replace, $html);
+        return $html;
+    }
+
+}
+

htdocs/lib/htmlpurifiercustom/filters.xml

@@ -20,4 +20,8 @@
         <filename>Twitter</filename>
         <site>http://twitter.com</site>
     </filter>
+    <filter>
+        <filename>SlideShare</filename>
+        <site>http://slideshare.net</site>
+    </filter>
 </filters>

htdocs/lib/version.php

@@ -27,7 +27,7 @@
 defined('INTERNAL') || die();
 
 $config = new StdClass;
-$config->version = 2009022800;
+$config->version = 2009031000;
 $config->release = '1.2.0dev';
 $config->minupgradefrom = 2008040200;
 $config->minupgraderelease = '1.0.0 (release tag 1.0.0_RELEASE)';