<?php

###############################################################################
# Gregarius - A PHP based RSS aggregator.
# Copyright (C) 2003 - 2005 Marco Bonetti
#
###############################################################################
# This program is free software and open source software; you can redistribute
# it and/or modify it under the terms of the GNU General Public License as
# published by the Free Software Foundation; either version 2 of the License,
# or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful, but WITHOUT
# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
# FITNESS FOR A PARTICULAR PURPOSE.	 See the GNU General Public License for
# more details.
#
# You should have received a copy of the GNU General Public License along
# with this program; if not, write to the Free Software Foundation, Inc.,
# 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA  or visit
# http://www.gnu.org/licenses/gpl.html
#
###############################################################################
# E-mail:	   mbonetti at users dot sourceforge dot net
# Web page:	   http://sourceforge.net/projects/gregarius
#
###############################################################################


class RSS {
	var $itemList;
	var $currentItem;
	var $currentFeed;
	var $currentItemList;
	var $currentItemTags;
	var $cntr = 0;
	var $header;
	var $footer;
	var $mainObject = array();
	var $renderOptions = IL_NONE;
	var $mainDivId;
	var $feedList;
	var $currentFeedsFolder;
	var $currentFeedsFeed;
	var $nav;
	var $currentNavItem;
	var $sideMenu;
	var $profiler = null;
	var $db = null;
	var $error = null;

	
	function RSS() {
	   if (defined('PROFILING') && PROFILING) {
	       rss_require('cls/profiler.php');
	       $this->profiler = new Profiler();
	   }
	}
	
	function _pf($msg) {
	   if ($this->profiler) {
	       $this->profiler->_pf($msg);
	   }
	}
	
	function getTemplateFile($file) {
		$theme = getConfig('rss.output.theme');
		if (defined('THEME_OVERRIDE')) {
			$theme = THEME_OVERRIDE;
		} elseif (isset($_REQUEST['theme'])) {
		    $theme = preg_replace('/[^a-zA-Z0-9_]/','',$_REQUEST['theme']);
		}
		
		$ret=RSS_THEME_DIR."/$theme/$file";
		
		
		
		/* 
		
		Patch submitted by rene ( at ) evo42 * net. 
		
				if you use an new theme and also set the THEME_OVERRIDE to 
				this theme name you get an 'invisible error' in the getTemplateFile 
				function (cls/rss.php) at the file_exists function...

		
		I haven't tested this  :)
		
		PATH_TRANSLATED is not always populated (depends of PHP/Apache/OS version)
		see remarks about this here: http://www.php.net/reserved.variables
		We must use SCRIPT_FILENAME instead, because it always exists
		*/
		$theme_check = RSS_THEME_DIR."/$theme/$file";
    if (isset($_SERVER['SCRIPT_FILENAME']) && ereg('admin', $_SERVER['SCRIPT_FILENAME']))   {
    	$theme_path = substr($_SERVER['SCRIPT_FILENAME'], 
    		0, strpos($_SERVER['SCRIPT_FILENAME'], 'admin'));
      $theme_check = $theme_path.$ret;
    }
               
               
		if (!file_exists($theme_check)) {
			$ret= RSS_THEME_DIR."/default/$file";
		}
		
		return $ret;
	}
	
	function getCachedTemplateFile($file) {
		static $templateCache = array();
		$filename = $this->getTemplateFile($file);	
		if (array_key_exists($filename, $templateCache)) {
			return $templateCache[$filename];
		}
		$fileContent = file_get_contents($filename);
		$modifiedFileContent = eval_mixed($fileContent);
		$templateCache[$filename] = $modifiedFileContent;

		return $modifiedFileContent;

	}
	function renderWithTemplate($template,$mainDivId="items") {
		$this->_pf('start rendering');
		
		if (!($this->header->options & HDR_NO_OUPUTBUFFERING)) {
			if (getConfig('rss.output.compression')) {
				ob_start('ob_gzhandler');
			} else {
				ob_start();
			}
			// force a content-type and a charset
			header('Content-Type: text/html; charset='
				. (getConfig('rss.output.encoding') ? getConfig('rss.output.encoding') : DEFAULT_OUTPUT_ENCODING));

		}
		
		
		$this -> mainDivId = $mainDivId;
		if (isset($this->header)) {
			$this->header->preRender(); 
		}
		
		$file = $this->getTemplateFile($template);
		require($file);
		
		$this->_pf('end rendering');
		
		if ($this->profiler) {
	       $this->profiler->render();
	   }
	}
	
	function appendContentObject(&$o) {
		$this -> mainObject[] = &$o;  
	}
	
	function error($error, $severity) {
		if ($this -> error == null) {
			rss_require('cls/errorhandler.php');
			$this -> error = new ErrorHandler();
		}
		$this -> error -> appendError($error, $severity);
	}
	
	function getShownUnreadIds() {
		$ret = array();
		foreach($this->mainObject as $o) {
			if (isset($o->unreadIids)) {
				$ret = array_merge($ret,$o->unreadIids);
			}
		}
		return $ret;
	}
	
}

$GLOBALS['rss'] = new RSS();


_pf('Parsing class wrappers:');
rss_require('cls/wrappers/errors.php');    _pf(" ...errors.php");
rss_require('cls/wrappers/feed.php');      _pf(" ...feed.php");
rss_require('cls/wrappers/feeds.php');     _pf(" ...feeds.php");
rss_require('cls/wrappers/header.php');    _pf(" ...header.php");
rss_require('cls/wrappers/nav.php');       _pf(" ...nav.php");
rss_require('cls/wrappers/item.php');      _pf(" ...item.php");
rss_require('cls/wrappers/itemlist.php');  _pf(" ...itemlist.php"); 
rss_require('cls/wrappers/misc.php');      _pf(" ...misc.php");

_pf('Parsed classes');

?>