<?php

/**

 * SimplePie

 *

 * A PHP-Based RSS and Atom Feed Framework.

 * Takes the hard work out of managing a complete RSS/Atom solution.

 *

 * Copyright (c) 2004-2008, Ryan Parman and Geoffrey Sneddon

 * All rights reserved.

 *

 * Redistribution and use in source and binary forms, with or without modification, are

 * permitted provided that the following conditions are met:

 *

 * 	* Redistributions of source code must retain the above copyright notice, this list of

 * 	  conditions and the following disclaimer.

 *

 * 	* Redistributions in binary form must reproduce the above copyright notice, this list

 * 	  of conditions and the following disclaimer in the documentation and/or other materials

 * 	  provided with the distribution.

 *

 * 	* Neither the name of the SimplePie Team nor the names of its contributors may be used

 * 	  to endorse or promote products derived from this software without specific prior

 * 	  written permission.

 *

 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS

 * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY

 * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS

 * AND CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR

 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR

 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY

 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR

 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE

 * POSSIBILITY OF SUCH DAMAGE.

 *

 * @package SimplePie

 * @version 1.1.3

 * @copyright 2004-2008 Ryan Parman, Geoffrey Sneddon

 * @author Ryan Parman

 * @author Geoffrey Sneddon

 * @link http://simplepie.org/ SimplePie

 * @link http://simplepie.org/support/ Please submit all bug reports and feature requests to the SimplePie forums

 * @license http://www.opensource.org/licenses/bsd-license.php BSD License

 * @todo phpDoc comments

 */

/**

 * SimplePie Name

 */

define('SIMPLEPIE_NAME', 'SimplePie');

/**

 * SimplePie Version

 */

define('SIMPLEPIE_VERSION', '1.1.3');

/**

 * SimplePie Build

 */

define('SIMPLEPIE_BUILD', 20081219);

/**

 * SimplePie Website URL

 */

define('SIMPLEPIE_URL', 'http://simplepie.org');

/**

 * SimplePie Useragent

 * @see SimplePie::set_useragent()

 */

define('SIMPLEPIE_USERAGENT', SIMPLEPIE_NAME . '/' . SIMPLEPIE_VERSION . ' (Feed Parser; ' . SIMPLEPIE_URL . '; Allow like Gecko) Build/' . SIMPLEPIE_BUILD);

/**

 * SimplePie Linkback

 */

define('SIMPLEPIE_LINKBACK', '<a href="' . SIMPLEPIE_URL . '" title="' . SIMPLEPIE_NAME . ' ' . SIMPLEPIE_VERSION . '">' . SIMPLEPIE_NAME . '</a>');

/**

 * No Autodiscovery

 * @see SimplePie::set_autodiscovery_level()

 */

define('SIMPLEPIE_LOCATOR_NONE', 0);

/**

 * Feed Link Element Autodiscovery

 * @see SimplePie::set_autodiscovery_level()

 */

define('SIMPLEPIE_LOCATOR_AUTODISCOVERY', 1);

/**

 * Local Feed Extension Autodiscovery

 * @see SimplePie::set_autodiscovery_level()

 */

define('SIMPLEPIE_LOCATOR_LOCAL_EXTENSION', 2);

/**

 * Local Feed Body Autodiscovery

 * @see SimplePie::set_autodiscovery_level()

 */

define('SIMPLEPIE_LOCATOR_LOCAL_BODY', 4);

/**

 * Remote Feed Extension Autodiscovery

 * @see SimplePie::set_autodiscovery_level()

 */

define('SIMPLEPIE_LOCATOR_REMOTE_EXTENSION', 8);

/**

 * Remote Feed Body Autodiscovery

 * @see SimplePie::set_autodiscovery_level()

 */

define('SIMPLEPIE_LOCATOR_REMOTE_BODY', 16);

/**

 * All Feed Autodiscovery

 * @see SimplePie::set_autodiscovery_level()

 */

define('SIMPLEPIE_LOCATOR_ALL', 31);

/**

 * No known feed type

 */

define('SIMPLEPIE_TYPE_NONE', 0);

/**

 * RSS 0.90

 */

define('SIMPLEPIE_TYPE_RSS_090', 1);

/**

 * RSS 0.91 (Netscape)

 */

define('SIMPLEPIE_TYPE_RSS_091_NETSCAPE', 2);

/**

 * RSS 0.91 (Userland)

 */

define('SIMPLEPIE_TYPE_RSS_091_USERLAND', 4);

/**

 * RSS 0.91 (both Netscape and Userland)

 */

define('SIMPLEPIE_TYPE_RSS_091', 6);

/**

 * RSS 0.92

 */

define('SIMPLEPIE_TYPE_RSS_092', 8);

/**

 * RSS 0.93

 */

define('SIMPLEPIE_TYPE_RSS_093', 16);

/**

 * RSS 0.94

 */

define('SIMPLEPIE_TYPE_RSS_094', 32);

/**

 * RSS 1.0

 */

define('SIMPLEPIE_TYPE_RSS_10', 64);

/**

 * RSS 2.0

 */

define('SIMPLEPIE_TYPE_RSS_20', 128);

/**

 * RDF-based RSS

 */

define('SIMPLEPIE_TYPE_RSS_RDF', 65);

/**

 * Non-RDF-based RSS (truly intended as syndication format)

 */

define('SIMPLEPIE_TYPE_RSS_SYNDICATION', 190);

/**

 * All RSS

 */

define('SIMPLEPIE_TYPE_RSS_ALL', 255);

/**

 * Atom 0.3

 */

define('SIMPLEPIE_TYPE_ATOM_03', 256);

/**

 * Atom 1.0

 */

define('SIMPLEPIE_TYPE_ATOM_10', 512);

/**

 * All Atom

 */

define('SIMPLEPIE_TYPE_ATOM_ALL', 768);

/**

 * All feed types

 */

define('SIMPLEPIE_TYPE_ALL', 1023);

/**

 * No construct

 */

define('SIMPLEPIE_CONSTRUCT_NONE', 0);

/**

 * Text construct

 */

define('SIMPLEPIE_CONSTRUCT_TEXT', 1);

/**

 * HTML construct

 */

define('SIMPLEPIE_CONSTRUCT_HTML', 2);

/**

 * XHTML construct

 */

define('SIMPLEPIE_CONSTRUCT_XHTML', 4);

/**

 * base64-encoded construct

 */

define('SIMPLEPIE_CONSTRUCT_BASE64', 8);

/**

 * IRI construct

 */

define('SIMPLEPIE_CONSTRUCT_IRI', 16);

/**

 * A construct that might be HTML

 */

define('SIMPLEPIE_CONSTRUCT_MAYBE_HTML', 32);

/**

 * All constructs

 */

define('SIMPLEPIE_CONSTRUCT_ALL', 63);

/**

 * PCRE for HTML attributes

 */

define('SIMPLEPIE_PCRE_HTML_ATTRIBUTE', '((?:[\x09\x0A\x0B\x0C\x0D\x20]+[^\x09\x0A\x0B\x0C\x0D\x20\x2F\x3E][^\x09\x0A\x0B\x0C\x0D\x20\x2F\x3D\x3E]*(?:[\x09\x0A\x0B\x0C\x0D\x20]*=[\x09\x0A\x0B\x0C\x0D\x20]*(?:"(?:[^"]*)"|\'(?:[^\']*)\'|(?:[^\x09\x0A\x0B\x0C\x0D\x20\x22\x27\x3E][^\x09\x0A\x0B\x0C\x0D\x20\x3E]*)?))?)*)[\x09\x0A\x0B\x0C\x0D\x20]*');

/**

 * PCRE for XML attributes

 */

define('SIMPLEPIE_PCRE_XML_ATTRIBUTE', '((?:\s+(?:(?:[^\s:]+:)?[^\s:]+)\s*=\s*(?:"(?:[^"]*)"|\'(?:[^\']*)\'))*)\s*');

/**

 * XML Namespace

 */

define('SIMPLEPIE_NAMESPACE_XML', 'http://www.w3.org/XML/1998/namespace');

/**

 * Atom 1.0 Namespace

 */

define('SIMPLEPIE_NAMESPACE_ATOM_10', 'http://www.w3.org/2005/Atom');

/**

 * Atom 0.3 Namespace

 */

define('SIMPLEPIE_NAMESPACE_ATOM_03', 'http://purl.org/atom/ns#');

/**

 * RDF Namespace

 */

define('SIMPLEPIE_NAMESPACE_RDF', 'http://www.w3.org/1999/02/22-rdf-syntax-ns#');

/**

 * RSS 0.90 Namespace

 */

define('SIMPLEPIE_NAMESPACE_RSS_090', 'http://my.netscape.com/rdf/simple/0.9/');

/**

 * RSS 1.0 Namespace

 */

define('SIMPLEPIE_NAMESPACE_RSS_10', 'http://purl.org/rss/1.0/');

/**

 * RSS 1.0 Content Module Namespace

 */

define('SIMPLEPIE_NAMESPACE_RSS_10_MODULES_CONTENT', 'http://purl.org/rss/1.0/modules/content/');

/**

 * RSS 2.0 Namespace

 * (Stupid, I know, but I'm certain it will confuse people less with support.)

 */

define('SIMPLEPIE_NAMESPACE_RSS_20', '');

/**

 * DC 1.0 Namespace

 */

define('SIMPLEPIE_NAMESPACE_DC_10', 'http://purl.org/dc/elements/1.0/');

/**

 * DC 1.1 Namespace

 */

define('SIMPLEPIE_NAMESPACE_DC_11', 'http://purl.org/dc/elements/1.1/');

/**

 * W3C Basic Geo (WGS84 lat/long) Vocabulary Namespace

 */

define('SIMPLEPIE_NAMESPACE_W3C_BASIC_GEO', 'http://www.w3.org/2003/01/geo/wgs84_pos#');

/**

 * GeoRSS Namespace

 */

define('SIMPLEPIE_NAMESPACE_GEORSS', 'http://www.georss.org/georss');

/**

 * Media RSS Namespace

 */

define('SIMPLEPIE_NAMESPACE_MEDIARSS', 'http://search.yahoo.com/mrss/');

/**

 * Wrong Media RSS Namespace

 */

define('SIMPLEPIE_NAMESPACE_MEDIARSS_WRONG', 'http://search.yahoo.com/mrss');

/**

 * iTunes RSS Namespace

 */

define('SIMPLEPIE_NAMESPACE_ITUNES', 'http://www.itunes.com/dtds/podcast-1.0.dtd');

/**

 * XHTML Namespace

 */

define('SIMPLEPIE_NAMESPACE_XHTML', 'http://www.w3.org/1999/xhtml');

/**

 * IANA Link Relations Registry

 */

define('SIMPLEPIE_IANA_LINK_RELATIONS_REGISTRY', 'http://www.iana.org/assignments/relation/');

/**

 * Whether we're running on PHP5

 */

define('SIMPLEPIE_PHP5', version_compare(PHP_VERSION, '5.0.0', '>='));

/**

 * No file source

 */

define('SIMPLEPIE_FILE_SOURCE_NONE', 0);

/**

 * Remote file source

 */

define('SIMPLEPIE_FILE_SOURCE_REMOTE', 1);

/**

 * Local file source

 */

define('SIMPLEPIE_FILE_SOURCE_LOCAL', 2);

/**

 * fsockopen() file source

 */

define('SIMPLEPIE_FILE_SOURCE_FSOCKOPEN', 4);

/**

 * cURL file source

 */

define('SIMPLEPIE_FILE_SOURCE_CURL', 8);

/**

 * file_get_contents() file source

 */

define('SIMPLEPIE_FILE_SOURCE_FILE_GET_CONTENTS', 16);

/**

 * SimplePie

 *

 * @package SimplePie

 * @version "Razzleberry"

 * @copyright 2004-2007 Ryan Parman, Geoffrey Sneddon

 * @author Ryan Parman

 * @author Geoffrey Sneddon

 * @todo Option for type of fetching (cache, not modified header, fetch, etc.)

 */

class SimplePie

{

	/**

	 * @var array Raw data

	 * @access private

	 */

	var $data = array();

	/**

	 * @var mixed Error string

	 * @access private

	 */

	var $error;

	/**

	 * @var object Instance of SimplePie_Sanitize (or other class)

	 * @see SimplePie::set_sanitize_class()

	 * @access private

	 */

	var $sanitize;

	/**

	 * @var string SimplePie Useragent

	 * @see SimplePie::set_useragent()

	 * @access private

	 */

	var $useragent = SIMPLEPIE_USERAGENT;

	/**

	 * @var string Feed URL

	 * @see SimplePie::set_feed_url()

	 * @access private

	 */

	var $feed_url;

	/**

	 * @var object Instance of SimplePie_File to use as a feed

	 * @see SimplePie::set_file()

	 * @access private

	 */

	var $file;

	/**

	 * @var string Raw feed data

	 * @see SimplePie::set_raw_data()

	 * @access private

	 */

	var $raw_data;

	/**

	 * @var int Timeout for fetching remote files

	 * @see SimplePie::set_timeout()

	 * @access private

	 */

	var $timeout = 10;

	/**

	 * @var bool Forces fsockopen() to be used for remote files instead

	 * of cURL, even if a new enough version is installed

	 * @see SimplePie::force_fsockopen()

	 * @access private

	 */

	var $force_fsockopen = false;

	/**

	 * @var bool Force the given data/URL to be treated as a feed no matter what

	 * it appears like

	 * @see SimplePie::force_feed()

	 * @access private

	 */

	var $force_feed = false;

	/**

	 * @var bool Enable/Disable XML dump

	 * @see SimplePie::enable_xml_dump()

	 * @access private

	 */

	var $xml_dump = false;

	/**

	 * @var bool Enable/Disable Caching

	 * @see SimplePie::enable_cache()

	 * @access private

	 */

	var $cache = true;

	/**

	 * @var int Cache duration (in seconds)

	 * @see SimplePie::set_cache_duration()

	 * @access private

	 */

	var $cache_duration = 3600;

	/**

	 * @var int Auto-discovery cache duration (in seconds)

	 * @see SimplePie::set_autodiscovery_cache_duration()

	 * @access private

	 */

	var $autodiscovery_cache_duration = 604800; // 7 Days.

	/**

	 * @var string Cache location (relative to executing script)

	 * @see SimplePie::set_cache_location()

	 * @access private

	 */

	var $cache_location = './cache';

	/**

	 * @var string Function that creates the cache filename

	 * @see SimplePie::set_cache_name_function()

	 * @access private

	 */

	var $cache_name_function = 'md5';

	/**

	 * @var bool Reorder feed by date descending

	 * @see SimplePie::enable_order_by_date()

	 * @access private

	 */

	var $order_by_date = true;

	/**

	 * @var mixed Force input encoding to be set to the follow value

	 * (false, or anything type-cast to false, disables this feature)

	 * @see SimplePie::set_input_encoding()

	 * @access private

	 */

	var $input_encoding = false;

	/**

	 * @var int Feed Autodiscovery Level

	 * @see SimplePie::set_autodiscovery_level()

	 * @access private

	 */

	var $autodiscovery = SIMPLEPIE_LOCATOR_ALL;

	/**

	 * @var string Class used for caching feeds

	 * @see SimplePie::set_cache_class()

	 * @access private

	 */

	var $cache_class = 'SimplePie_Cache';

	/**

	 * @var string Class used for locating feeds