<?php
/*

/// Name: DoNotIndexYourSelfFilter
/// Author: http://pascal.vanhecke.info
/// Description: Filters out the urls from the Gregarius site itself (typically for searchfeeds)
/// Version: 0.10
/// License: GNU LGPL 2.0 or 2.1
/// api: gregarius
/// hooks: rss.plugins.items.beforerender, rss.plugins.rssitem
/// funcs: g_plugin_donotindexyourselffilter_exec_beforerender, g_plugin_donotindexyourselffilter_exec_rssitem

 
*/

#-- register hooks
rss_set_hook("rss.plugins.items.beforerender", "g_plugin_donotindexyourselffilter_exec_beforerender");
rss_set_hook("rss.plugins.rssitem", "g_plugin_donotindexyourselffilter_exec_rssitem");


#-- filter engaged on frontpage (or in feed folder),
#  checks options and removes items
function g_plugin_donotindexyourselffilter_exec_beforerender($item) {
   $cid = $item->feed;
   $hide = rss_plugins_get_option("pfif.hide.feed.$cid");
   $channelhide = rss_plugins_get_option("pfif.channel.feed.$cid");
   
   $parsed_feed_url = parse_url($item->url);
   if (is_array($parsed_feed_url)) $parsed_host = $parsed_feed_url["host"]; 
   
   #-- must filter be checked in channel view at all?
   if ($_GET["channel"] && !$channelhide) {
      return $item;
   }
   #-- or hide items on frontpage always?
   if ($hide && !$_GET["channel"]) {
      return NULL;
   }

   #-- see if url is url on the Gregarius site
	  if ($parsed_host <> $_SERVER['HTTP_HOST']) {
		 // ok
		 #$item->description .= "\n<!-- filter: \"$uu[1]\" -->\n";
	  }
	  else {
		 // hide
		 return NULL;
	  }
 
   #-- done  
   return $item;
}


#-- filter a feed while it gets parsed / before items are written to the DB at all
function g_plugin_donotindexyourselffilter_exec_rssitem($item) {
   $cid = $item["feed"];
   $incoming = rss_plugins_get_option("pfif.incoming.feed.$cid");

   #-- check for required data
   if ($cid && $incoming && !empty($item)) {

	   $parsed_feed_url = parse_url($item->url);
	   if (is_array($parsed_feed_url)) $parsed_host = $parsed_feed_url["host"]; 
	   
      #-- kill item if regex DOES NOT match
      if ($parsed_host == $_SERVER['HTTP_HOST']) {
         $item = NULL;
      }
   }

   #-- send back
   return($item);
}


#-- ???
function g_plugin_exec_feed_list_name($list=NULL) {
   // $cid = 
   $hide = rss_plugins_get_option("pfif.listhide.feed.$cid");
   // ...
}


?>