metadebug parameter added

With DokuWiki's reliance on certain page metadata, it is sometimes necessary to
view the metadata of a page. This patch allows developers to append the parameter
?metadebug

darcs-hash:20060925193202-7ad00-6a42c7458aaa1cc40df3c7a61ad70df5d64be152.gz

doku.php

@@ -76,5 +76,8 @@
 
   trigger_event('DOKUWIKI_DONE', $tmp=array());
 
+  //handle metadebug request
+  debug_meta($ID);
+
 //  xdebug_dump_function_profile(1);
 ?>

inc/infoutils.php

@@ -247,4 +247,22 @@ function dbglog($msg){
   }
 }
 
+/**
+ * Prints the metadata of a given page
+ *
+ * Only prints when debugging is allowed and the metadebug request
+ * parameter is set
+ *
+ * The data is dumped after tpl_action and thus after the template's
+ * closing html tag. This makes the HTML invalid, but this is for
+ * debugging only anyway.
+ *
+ * @author Andreas Gohr <andi@splitbrain.org>
+ */
+function debug_meta($id){
+    global $conf;
+    if(!$conf['allowdebug']) return;
+    if(!$_REQUEST['metadebug']) return;
 
+    dbg(p_get_metadata($id));
+}