sorbetcms/classes/simplepie.class.php

<?php
/****************************************************
SIMPLEPIE
A PHP-Based RSS and Atom Feed Framework
Takes the hard work out of managing a complete RSS/Atom solution.

Version: "Lemon Meringue"
Updated: 24 November 2006
Copyright: 2004-2006 Ryan Parman, Geoffrey Sneddon
http://simplepie.org

*****************************************************
LICENSE:

GNU Lesser General Public License 2.1 (LGPL)
http://creativecommons.org/licenses/LGPL/2.1/

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

****************************************************/

class SimplePie
{
    // SimplePie Info
    public $name = 'SimplePie';
    public $version = '1.0 b3.2';
    public $build = '20061124';
    public $url = 'http://simplepie.org/';
    public $useragent;
    public $linkback;

    // Other objects, instances created here so we can set options on them
    public $sanitize;

    // Options
    public $rss_url;
    public $file;
    public $timeout = 10;
    public $xml_dump = false;
    public $enable_cache = true;
    public $max_minutes = 60;
    public $cache_location = './cache';
    public $order_by_date = true;
    public $input_encoding = false;
    public $cache_class = 'SimplePie_Cache';
    public $locator_class = 'SimplePie_Locator';
    public $parser_class = 'SimplePie_Parser';
    public $file_class = 'SimplePie_File';
    public $force_fsockopen = false;
    public $cache_name_type = 'sha1';

    // Misc. variables
    public $data;
    public $error;

    public function __construct($feed_url = null, $cache_location = null, $cache_max_minutes = null)
    {
        // Couple of variables built up from other variables
        $this->useragent = $this->name . '/' . $this->version . ' (Feed Parser; ' . $this->url . '; Allow like Gecko) Build/' . $this->build;
        $this->linkback = '<a href="' . $this->url . '" title="' . $this->name . ' ' . $this->version . '">' . $this->name . '</a>';

        // Other objects, instances created here so we can set options on them
        $this->sanitize = new SimplePie_Sanitize;

        // Set options if they're passed to the constructor
        if (!is_null($feed_url)) {
            $this->feed_url($feed_url);
        }

        if (!is_null($cache_location)) {
            $this->cache_location($cache_location);
        }

        if (!is_null($cache_max_minutes)) {
            $this->cache_max_minutes($cache_max_minutes);
        }

        // If we've passed an xmldump variable in the URL, snap into XMLdump mode
        if (isset($_GET['xmldump'])) {
            $this->enable_xmldump(true);
        }

        // Only init the script if we're passed a feed URL
        if (!is_null($feed_url)) {
            return $this->init();
        }
    }

    public function feed_url($url)
    {
        $this->rss_url = SimplePie_Misc::fix_protocol($url, 1);
    }

    public function set_file(&$file)
    {
        if (is_a($file, 'SimplePie_File')) {
            $this->rss_url = $file->url;
            $this->file =& $file;
        }
    }

    public function set_timeout($timeout = 10)
    {
        $this->timeout = (int) $timeout;
    }

    public function set_raw_data($data)
    {
        $this->raw_data = trim((string) $data);
    }

    public function enable_xmldump($enable = false)
    {
        $this->xml_dump = (bool) $enable;
    }

    public function enable_caching($enable = true)
    {
        $this->enable_cache = (bool) $enable;
    }

    public function cache_max_minutes($minutes = 60)
    {
        $this->max_minutes = (float) $minutes;
    }

    public function cache_location($location = './cache')
    {
        $this->cache_location = (string) $location;
    }

    public function order_by_date($enable = true)
    {
        $this->order_by_date = (bool) $enable;
    }

    public function input_encoding($encoding = false)
    {
        if ($encoding) {
            $this->input_encoding = (string) $encoding;
        } else {
            $this->input_encoding = false;
        }
    }

    public function set_cache_class($class = 'SimplePie_Cache')
    {
        if (SimplePie_Misc::is_a_class($class, 'SimplePie_Cache')) {
            $this->cache_class = $class;
            return true;
        }
        return false;
    }

    public function set_locator_class($class = 'SimplePie_Locator')
    {
        if (SimplePie_Misc::is_a_class($class, 'SimplePie_Locator')) {
            $this->locator_class = $class;
            return true;
        }
        return false;
    }

    public function set_parser_class($class = 'SimplePie_Parser')
    {
        if (SimplePie_Misc::is_a_class($class, 'SimplePie_Parser')) {
            $this->parser_class = $class;
            return true;
        }
        return false;
    }

    public function set_file_class($class = 'SimplePie_File')
    {
        if (SimplePie_Misc::is_a_class($class, 'SimplePie_File')) {
            $this->file_class = $class;
            return true;
        }
        return false;
    }

    public function set_sanitize_class($object = 'SimplePie_Sanitize')
    {
        if (class_exists($object)) {
            $this->sanitize = new $object;
            return true;
        }
        return false;
    }

    public function set_useragent($ua)
    {
        $this->useragent = (string) $ua;
    }

    public function force_fsockopen($enable = false)
    {
        $this->force_fsockopen = (bool) $enable;
    }

    public function set_cache_name_type($type = 'sha1')
    {
        $type = strtolower(trim($type));
        switch ($type) {
            case 'crc32':
                $this->cache_name_type = 'crc32';
                break;

            case 'md5':
                $this->cache_name_type = 'md5';
                break;

            case 'rawurlencode':
                $this->cache_name_type = 'rawurlencode';
                break;

            case 'urlencode':
                $this->cache_name_type = 'urlencode';
                break;

            default:
                $this->cache_name_type = 'sha1';
                break;
        }
    }

    public function bypass_image_hotlink($get = false)
    {
        $this->sanitize->bypass_image_hotlink($get);
    }

    public function bypass_image_hotlink_page($page = false)
    {
        $this->sanitize->bypass_image_hotlink_page($page);
    }

    public function replace_headers($enable = false)
    {
        $this->sanitize->replace_headers($enable);
    }

    public function remove_div($enable = true)
    {
        $this->sanitize->remove_div($enable);
    }

    public function strip_ads($enable = false)
    {
        $this->sanitize->strip_ads($enable);
    }

    public function strip_htmltags($tags = array('base', 'blink', 'body', 'doctype', 'embed', 'font', 'form', 'frame', 'frameset', 'html', 'iframe', 'input', 'marquee', 'meta', 'noscript', 'object', 'param', 'script', 'style'), $encode = null)
    {
        $this->sanitize->strip_htmltags($tags);
        if (!is_null($encode)) {
            $this->sanitize->encode_instead_of_strip($tags);
        }
    }

    public function encode_instead_of_strip($enable = true)
    {
        $this->sanitize->encode_instead_of_strip($enable);
    }

    public function strip_attributes($attribs = array('bgsound', 'class', 'expr', 'id', 'style', 'onclick', 'onerror', 'onfinish', 'onmouseover', 'onmouseout', 'onfocus', 'onblur'))
    {
        $this->sanitize->strip_attributes($attribs);
    }

    public function output_encoding($encoding = 'UTF-8')
    {
        $this->sanitize->output_encoding($encoding);
    }

    public function set_item_class($class = 'SimplePie_Item')
    {
        return $this->sanitize->set_item_class($class);
    }

    public function set_author_class($class = 'SimplePie_Author')
    {
        return $this->sanitize->set_author_class($class);
    }

    public function set_enclosure_class($class = 'SimplePie_Enclosure')
    {
        return $this->sanitize->set_enclosure_class($class);
    }

    public function init()
    {
        if (!(function_exists('version_compare') && ((version_compare(phpversion(), '4.3.2', '>=') && version_compare(phpversion(), '5', '<')) || version_compare(phpversion(), '5.0.3', '>='))) || !extension_loaded('xml') || !extension_loaded('pcre')) {
            return false;
        }
        if ($this->sanitize->bypass_image_hotlink && !empty($_GET[$this->sanitize->bypass_image_hotlink])) {
            if (get_magic_quotes_gpc()) {
                $_GET[$this->sanitize->bypass_image_hotlink] = stripslashes($_GET[$this->sanitize->bypass_image_hotlink]);
            }
            SimplePie_Misc::display_file($_GET[$this->sanitize->bypass_image_hotlink], 10, $this->useragent);
        }

        if (isset($_GET['js'])) {
            $embed = <<<EOT
function embed_odeo(link) {
	document.writeln('<embed src="http://odeo.com/flash/audio_player_fullsize.swf" pluginspage="http://www.macromedia.com/go/getflashplayer" type="application/x-shockwave-flash" quality="high" width="440" height="80" wmode="transparent" allowScriptAccess="any" flashvars="valid_sample_rate=true&external_url='+link+'"></embed>');
}

function embed_quicktime(type, bgcolor, width, height, link, placeholder, loop) {
	if (placeholder != '') {
		document.writeln('<embed type="'+type+'" style="cursor:hand; cursor:pointer;" href="'+link+'" src="'+placeholder+'" width="'+width+'" height="'+height+'" autoplay="false" target="myself" controller="false" loop="'+loop+'" scale="aspect" bgcolor="'+bgcolor+'" pluginspage="http://www.apple.com/quicktime/download/"></embed>');
	}
	else {
		document.writeln('<embed type="'+type+'" style="cursor:hand; cursor:pointer;" src="'+link+'" width="'+width+'" height="'+height+'" autoplay="false" target="myself" controller="true" loop="'+loop+'" scale="aspect" bgcolor="'+bgcolor+'" pluginspage="http://www.apple.com/quicktime/download/"></embed>');
	}
}

function embed_flash(bgcolor, width, height, link, loop, type) {
	document.writeln('<embed src="'+link+'" pluginspage="http://www.macromedia.com/shockwave/download/index.cgi?P1_Prod_Version=ShockwaveFlash" type="'+type+'" quality="high" width="'+width+'" height="'+height+'" bgcolor="'+bgcolor+'" loop="'+loop+'"></embed>');
}

function embed_wmedia(width, height, link) {
	document.writeln('<embed type="application/x-mplayer2" src="'+link+'" autosize="1" width="'+width+'" height="'+height+'" showcontrols="1" showstatusbar="0" showdisplay="0" autostart="0"></embed>');
}
EOT;

            if (function_exists('ob_gzhandler')) {
                ob_start('ob_gzhandler');
            }
            header('Content-type: text/javascript; charset: UTF-8');
            header('Cache-Control: must-revalidate');
            header('Expires: ' .  gmdate('D, d M Y H:i:s', time() + 86400) . ' GMT');
            echo $embed;
            exit;
        }

        if (!empty($this->rss_url) || !empty($this->raw_data)) {
            $this->data = array();
            $cache = false;

            if (!empty($this->rss_url)) {
                // Decide whether to enable caching
                if ($this->enable_cache && preg_match('/^http(s)?:\/\//i', $this->rss_url)) {
                    $cache = new $this->cache_class($this->cache_location, call_user_func($this->cache_name_type, $this->rss_url), 'spc');
                }
                // If it's enabled and we don't want an XML dump, use the cache
                if ($cache && !$this->xml_dump) {
                    // Load the Cache
                    $this->data = $cache->load();
                    if (!empty($this->data)) {
                        // If we've hit a collision just rerun it with caching disabled
                        if (isset($this->data['url']) && $this->data['url'] != $this->rss_url) {
                            $cache = false;
                        }
                        // If we've got a feed_url stored (if the page isn't actually a feed, or is a redirect) use that URL
                        elseif (!empty($this->data['feed_url'])) {
                            if ($this->data['feed_url'] == $this->data['url']) {
                                $cache->unlink();
                            } else {
                                $this->feed_url($this->data['feed_url']);
                                return $this->init();
                            }
                        }
                        // If the cache is new enough
                        elseif ($cache->mtime() + $this->max_minutes * 60 < time()) {
                            // If we have last-modified and/or etag set
                            if (!empty($this->data['last-modified']) || !empty($this->data['etag'])) {
                                $headers = array();
                                if (!empty($this->data['last-modified'])) {
                                    $headers['if-modified-since'] = $this->data['last-modified'];
                                }
                                if (!empty($this->data['etag'])) {
                                    $headers['if-none-match'] = $this->data['etag'];
                                }
                                $file = new $this->file_class($this->rss_url, $this->timeout/10, 5, $headers, $this->useragent, $this->force_fsockopen);
                                if ($file->success) {
                                    $headers = $file->headers();
                                    if ($headers['status']['code'] == 304) {
                                        $cache->touch();
                                        return true;
                                    }
                                } else {
                                    unset($file);
                                }
                            }
                            // If we don't have last-modified or etag set, just clear the cache
                            else {
                                $cache->unlink();
                            }
                        }
                        // If the cache is still valid, just return true
                        else {
                            return true;
                        }
                    }
                    // If the cache is empty, delete it
                    else {
                        $cache->unlink();
                    }
                }
                $this->data = array();
                // If we don't already have the file (it'll only exist if we've opened it to check if the cache has been modified), open it.
                if (!isset($file)) {
                    if (is_a($this->file, 'SimplePie_File') && $this->file->url == $this->rss_url) {
                        $file =& $this->file;
                    } else {
                        $file = new $this->file_class($this->rss_url, $this->timeout, 5, null, $this->useragent, $this->force_fsockopen);
                    }
                }
                // If the file connection has an error, set SimplePie::error to that and quit
                if (!$file->success) {
                    $this->error = $file->error;
                    return false;
                }

                // Check if the supplied URL is a feed, if it isn't, look for it.
                $locate = new $this->locator_class($file, $this->timeout, $this->useragent);
                if (!$locate->is_feed($file)) {
                    $feed = $locate->find();
                    if ($feed) {
                        if ($cache && !$cache->save(array('url' => $this->rss_url, 'feed_url' => $feed))) {
                            $this->error = "$cache->name is not writeable";
                            SimplePie_Misc::error($this->error, E_USER_WARNING, __FILE__, __LINE__);
                        }
                        $this->rss_url = $feed;
                        return $this->init();
                    } else {
                        $this->error = "A feed could not be found at $this->rss_url";
                        SimplePie_Misc::error($this->error, E_USER_WARNING, __FILE__, __LINE__);
                        return false;
                    }
                }

                $headers = $file->headers();
                $data = trim($file->body());
                $file->close();
                unset($file);
            } else {
                $data = $this->raw_data;
            }

            // First check to see if input has been overridden.
            if (!empty($this->input_encoding)) {
                $encoding = $this->input_encoding;
            }
            // Second try HTTP headers
            elseif (!empty($headers['content-type']) && preg_match('/charset\s*=\s*([^;]*)/i', $headers['content-type'], $charset)) {
                $encoding = $charset[1];
            }
            // Then prolog, if at the very start of the document
            elseif (preg_match('/^<\?xml(.*)?>/msiU', $data, $prolog) && preg_match('/encoding\s*=\s*("([^"]*)"|\'([^\']*)\')/Ui', $prolog[1], $encoding)) {
                $encoding = substr($encoding[1], 1, -1);
            }
            // UTF-32 Big Endian BOM
            elseif (strpos($data, sprintf('%c%c%c%c', 0x00, 0x00, 0xFE, 0xFF)) === 0) {
                $encoding = 'UTF-32be';
            }
            // UTF-32 Little Endian BOM
            elseif (strpos($data, sprintf('%c%c%c%c', 0xFF, 0xFE, 0x00, 0x00)) === 0) {
                $encoding = 'UTF-32';
            }
            // UTF-16 Big Endian BOM
            elseif (strpos($data, sprintf('%c%c', 0xFE, 0xFF)) === 0) {
                $encoding = 'UTF-16be';
            }
            // UTF-16 Little Endian BOM
            elseif (strpos($data, sprintf('%c%c', 0xFF, 0xFE)) === 0) {
                $encoding = 'UTF-16le';
            }
            // UTF-8 BOM
            elseif (strpos($data, sprintf('%c%c%c', 0xEF, 0xBB, 0xBF)) === 0) {
                $encoding = 'UTF-8';
            }
            // Fallback to the default
            else {
                $encoding = null;
            }

            // Change the encoding to UTF-8 (as we always use UTF-8 internally)
            $data = SimplePie_Misc::change_encoding($data, $encoding, 'UTF-8');

            // Strip illegal characters (if on less  than PHP5, as on PHP5 expat can manage fine)
            if (version_compare(phpversion(), '5', '<')) {
                if (function_exists('iconv')) {
                    $data = iconv('UTF-8', 'UTF-8//IGNORE', $data);
                } elseif (function_exists('mb_convert_encoding')) {
                    $data = mb_convert_encoding($data, 'UTF-8', 'UTF-8');
                } else {
                    $data = SimplePie_Misc::utf8_bad_replace($data);
                }
            }

            // Start parsing
            $data = new $this->parser_class($data, 'UTF-8', $this->xml_dump);
            // If we want the XML, just output that and quit
            if ($this->xml_dump) {
                header('Content-type: text/xml; charset=UTF-8');
                echo $data->data;
                exit;
            }
            // If it's parsed fine
            elseif (!$data->error_code) {
                // Parse the data, and make it sane
                $this->sanitize->parse_data_array($data->data, $this->rss_url);
                unset($data);
                // Get the sane data
                $this->data['feedinfo'] = $this->sanitize->feedinfo;
                unset($this->sanitize->feedinfo);
                $this->data['info'] = $this->sanitize->info;
                unset($this->sanitize->info);
                $this->data['items'] = $this->sanitize->items;
                unset($this->sanitize->items);
                $this->data['feedinfo']['encoding'] = $this->sanitize->output_encoding;
                $this->data['url'] = $this->rss_url;

                // Store the headers that we need
                if (!empty($headers['last-modified'])) {
                    $this->data['last-modified'] = $headers['last-modified'];
                }
                if (!empty($headers['etag'])) {
                    $this->data['etag'] = $headers['etag'];
                }

                // If we want to order it by date, check if all items have a date, and then sort it
                if ($this->order_by_date && !empty($this->data['items'])) {
                    $do_sort = true;
                    foreach ($this->data['items'] as $item) {
                        if (!$item->get_date('U')) {
                            $do_sort = false;
                            break;
                        }
                    }
                    if ($do_sort) {
                        usort($this->data['items'], create_function('$a, $b', 'if ($a->get_date(\'U\') == $b->get_date(\'U\')) return 1; return ($a->get_date(\'U\') < $b->get_date(\'U\')) ? 1 : -1;'));
                    }
                }

                // Cache the file if caching is enabled
                if ($cache && !$cache->save($this->data)) {
                    $this->error = "$cache->name is not writeable";
                    SimplePie_Misc::error($this->error, E_USER_WARNING, __FILE__, __LINE__);
                }
                return true;
            }
            // If we have an error, just set SimplePie::error to it and quit
            else {
                $this->error = "XML error: $data->error_string at line $data->current_line, column $data->current_column";
                SimplePie_Misc::error($this->error, E_USER_WARNING, __FILE__, __LINE__);
                return false;
            }
        }
    }

    public function get_encoding()
    {
        if (!empty($this->data['feedinfo']['encoding'])) {
            return $this->data['feedinfo']['encoding'];
        } else {
            return false;
        }
    }

    public function handle_content_type($mime = 'text/html')
    {
        if (!headers_sent()) {
            $header = "Content-type: $mime;";
            if ($this->get_encoding()) {
                $header .= ' charset=' . $this->get_encoding();
            } else {
                $header .= ' charset=UTF-8';
            }
            header($header);
        }
    }

    public function get_type()
    {
        if (!empty($this->data['feedinfo']['type'])) {
            return $this->data['feedinfo']['type'];
        } else {
            return false;
        }
    }

    public function get_version()
    {
        if (!empty($this->data['feedinfo']['version'])) {
            return $this->data['feedinfo']['version'];
        } else {
            return false;
        }
    }

    public function get_favicon($check = false, $alternate = null)
    {
        if (!empty($this->data['info']['link']['alternate'][0])) {
            $favicon = SimplePie_Misc::absolutize_url('/favicon.ico', $this->get_feed_link());

            if ($check) {
                $file = new $this->file_class($favicon, $this->timeout/10, 5, null, $this->useragent, $this->force_fsockopen);
                $headers = $file->headers();
                $file->close();

                if ($headers['status']['code'] == 200) {
                    return $favicon;
                }
            } else {
                return $favicon;
            }
        }
        if (!is_null($alternate)) {
            return $alternate;
        } else {
            return false;
        }
    }

    public function subscribe_url()
    {
        if (!empty($this->rss_url)) {
            return $this->rss_url;
        } else {
            return false;
        }
    }

    public function subscribe_feed()
    {
        if (!empty($this->rss_url)) {
            return SimplePie_Misc::fix_protocol($this->rss_url, 2);
        } else {
            return false;
        }
    }

    public function subscribe_outlook()
    {
        if (!empty($this->rss_url)) {
            return 'outlook' . SimplePie_Misc::fix_protocol($this->rss_url, 2);
        } else {
            return false;
        }
    }

    public function subscribe_podcast()
    {
        if (!empty($this->rss_url)) {
            return SimplePie_Misc::fix_protocol($this->rss_url, 3);
        } else {
            return false;
        }
    }

    public function subscribe_aol()
    {
        if ($this->subscribe_url()) {
            return 'http://feeds.my.aol.com/add.jsp?url=' . rawurlencode($this->subscribe_url());
        } else {
            return false;
        }
    }

    public function subscribe_bloglines()
    {
        if ($this->subscribe_url()) {
            return 'http://www.bloglines.com/sub/' . rawurlencode($this->subscribe_url());
        } else {
            return false;
        }
    }

    public function subscribe_eskobo()
    {
        if ($this->subscribe_url()) {
            return 'http://www.eskobo.com/?AddToMyPage=' . rawurlencode($this->subscribe_url());
        } else {
            return false;
        }
    }

    public function subscribe_feedfeeds()
    {
        if ($this->subscribe_url()) {
            return 'http://www.feedfeeds.com/add?feed=' . rawurlencode($this->subscribe_url());
        } else {
            return false;
        }
    }

    public function subscribe_feedlounge()
    {
        if ($this->subscribe_url()) {
            return 'http://my.feedlounge.com/external/subscribe?url=' . rawurlencode($this->subscribe_url());
        } else {
            return false;
        }
    }

    public function subscribe_feedster()
    {
        if ($this->subscribe_url()) {
            return 'http://www.feedster.com/myfeedster.php?action=addrss&amp;confirm=no&amp;rssurl=' . rawurlencode($this->subscribe_url());
        } else {
            return false;
        }
    }

    public function subscribe_google()
    {
        if ($this->subscribe_url()) {
            return 'http://fusion.google.com/add?feedurl=' . rawurlencode($this->subscribe_url());
        } else {
            return false;
        }
    }

    public function subscribe_gritwire()
    {
        if ($this->subscribe_url()) {
            return 'http://my.gritwire.com/feeds/addExternalFeed.aspx?FeedUrl=' . rawurlencode($this->subscribe_url());
        } else {
            return false;
        }
    }

    public function subscribe_msn()
    {
        if ($this->subscribe_url()) {
            $url = 'http://my.msn.com/addtomymsn.armx?id=rss&amp;ut=' . rawurlencode($this->subscribe_url());
            if ($this->get_feed_link()) {
                $url .= '&amp;ru=' . rawurlencode($this->get_feed_link());
            }
            return $url;
        } else {
            return false;
        }
    }

    public function subscribe_netvibes()
    {
        if ($this->subscribe_url()) {
            return 'http://www.netvibes.com/subscribe.php?url=' . rawurlencode($this->subscribe_url());
        } else {
            return false;
        }
    }

    public function subscribe_newsburst()
    {
        if ($this->subscribe_url()) {
            return 'http://www.newsburst.com/Source/?add=' . rawurlencode($this->subscribe_url());
        } else {
            return false;
        }
    }

    public function subscribe_newsgator()
    {
        if ($this->subscribe_url()) {
            return 'http://www.newsgator.com/ngs/subscriber/subext.aspx?url=' . rawurlencode($this->subscribe_url());
        } else {
            return false;
        }
    }

    public function subscribe_odeo()
    {
        if ($this->subscribe_url()) {
            return 'http://www.odeo.com/listen/subscribe?feed=' . rawurlencode($this->subscribe_url());
        } else {
            return false;
        }
    }

    public function subscribe_pluck()
    {
        if ($this->subscribe_url()) {
            return 'http://client.pluck.com/pluckit/prompt.aspx?GCID=C12286x053&amp;a=' . rawurlencode($this->subscribe_url());
        } else {
            return false;
        }
    }

    public function subscribe_podnova()
    {
        if ($this->subscribe_url()) {
            return 'http://www.podnova.com/index_your_podcasts.srf?action=add&amp;url=' . rawurlencode($this->subscribe_url());
        } else {
            return false;
        }
    }

    public function subscribe_rojo()
    {
        if ($this->subscribe_url()) {
            return 'http://www.rojo.com/add-subscription?resource=' . rawurlencode($this->subscribe_url());
        } else {
            return false;
        }
    }

    public function subscribe_yahoo()
    {
        if ($this->subscribe_url()) {
            return 'http://add.my.yahoo.com/rss?url=' . rawurlencode($this->subscribe_url());
        } else {
            return false;
        }
    }

    public function get_feed_title()
    {
        if (!empty($this->data['info']['title'])) {
            return $this->data['info']['title'];
        } else {
            return false;
        }
    }

    public function get_feed_link()
    {
        if (!empty($this->data['info']['link']['alternate'][0])) {
            return $this->data['info']['link']['alternate'][0];
        } else {
            return false;
        }
    }

    public function get_feed_links()
    {
        if (!empty($this->data['info']['link'])) {
            return $this->data['info']['link'];
        } else {
            return false;
        }
    }

    public function get_feed_description()
    {
        if (!empty($this->data['info']['description'])) {
            return $this->data['info']['description'];
        } elseif (!empty($this->data['info']['dc:description'])) {
            return $this->data['info']['dc:description'];
        } elseif (!empty($this->data['info']['tagline'])) {
            return $this->data['info']['tagline'];
        } elseif (!empty($this->data['info']['subtitle'])) {
            return $this->data['info']['subtitle'];
        } else {
            return false;
        }
    }

    public function get_feed_copyright()
    {
        if (!empty($this->data['info']['copyright'])) {
            return $this->data['info']['copyright'];
        } else {
            return false;
        }
    }

    public function get_feed_language()
    {
        if (!empty($this->data['info']['language'])) {
            return $this->data['info']['language'];
        } elseif (!empty($this->data['info']['xml:lang'])) {
            return $this->data['info']['xml:lang'];
        } else {
            return false;
        }
    }

    public function get_image_exist()
    {
        if (!empty($this->data['info']['image']['url']) || !empty($this->data['info']['image']['logo'])) {
            return true;
        } else {
            return false;
        }
    }

    public function get_image_title()
    {
        if (!empty($this->data['info']['image']['title'])) {
            return $this->data['info']['image']['title'];
        } else {
            return false;
        }
    }

    public function get_image_url()
    {
        if (!empty($this->data['info']['image']['url'])) {
            return $this->data['info']['image']['url'];
        } elseif (!empty($this->data['info']['image']['logo'])) {
            return $this->data['info']['image']['logo'];
        } else {
            return false;
        }
    }

    public function get_image_link()
    {
        if (!empty($this->data['info']['image']['link'])) {
            return $this->data['info']['image']['link'];
        } else {
            return false;
        }
    }

    public function get_image_width()
    {
        if (!empty($this->data['info']['image']['width'])) {
            return $this->data['info']['image']['width'];
        } else {
            return false;
        }
    }

    public function get_image_height()
    {
        if (!empty($this->data['info']['image']['height'])) {
            return $this->data['info']['image']['height'];
        } else {
            return false;
        }
    }

    public function get_item_quantity($max = 0)
    {
        if (!empty($this->data['items'])) {
            $qty = sizeof($this->data['items']);
        } else {
            $qty = 0;
        }
        if ($max == 0) {
            return $qty;
        } else {
            return ($qty > $max) ? $max : $qty;
        }
    }

    public function get_item($key = 0)
    {
        if (!empty($this->data['items'][$key])) {
            return $this->data['items'][$key];
        } else {
            return false;
        }
    }

    public function get_items($start = 0, $end = 0)
    {
        if ($this->get_item_quantity() > 0) {
            if ($end == 0) {
                return array_slice($this->data['items'], $start);
            } else {
                return array_slice($this->data['items'], $start, $end);
            }
        } else {
            return false;
        }
    }
}

class SimplePie_Item
{
    public $data;

    public function __construct($data)
    {
        $this->data =& $data;
    }

    public function get_id()
    {
        if (!empty($this->data['guid']['data'])) {
            return $this->data['guid']['data'];
        } elseif (!empty($this->data['id'])) {
            return $this->data['id'];
        } else {
            return false;
        }
    }

    public function get_title()
    {
        if (!empty($this->data['title'])) {
            return $this->data['title'];
        } elseif (!empty($this->data['dc:title'])) {
            return $this->data['dc:title'];
        } else {
            return false;
        }
    }

    public function get_description()
    {
        if (!empty($this->data['content'])) {
            return $this->data['content'];
        } elseif (!empty($this->data['encoded'])) {
            return $this->data['encoded'];
        } elseif (!empty($this->data['summary'])) {
            return $this->data['summary'];
        } elseif (!empty($this->data['description'])) {
            return $this->data['description'];
        } elseif (!empty($this->data['dc:description'])) {
            return $this->data['dc:description'];
        } elseif (!empty($this->data['longdesc'])) {
            return $this->data['longdesc'];
        } else {
            return false;
        }
    }

    public function get_category($key = 0)
    {
        $categories = $this->get_categories();
        if (!empty($categories[$key])) {
            return $categories[$key];
        } else {
            return false;
        }
    }

    public function get_categories()
    {
        $categories = array();
        if (!empty($this->data['category'])) {
            $categories = array_merge($categories, $this->data['category']);
        }
        if (!empty($this->data['subject'])) {
            $categories = array_merge($categories, $this->data['subject']);
        }
        if (!empty($this->data['term'])) {
            $categories = array_merge($categories, $this->data['term']);
        }
        if (!empty($categories)) {
            return array_unique($categories);
        } else {
            return false;
        }
    }

    public function get_author($key = 0)
    {
        $authors = $this->get_authors();
        if (!empty($authors[$key])) {
            return $authors[$key];
        } else {
            return false;
        }
    }

    public function get_authors()
    {
        $authors = array();
        if (!empty($this->data['author'])) {
            $authors = array_merge($authors, $this->data['author']);
        }
        if (!empty($this->data['creator'])) {
            $authors = array_merge($authors, $this->data['creator']);
        }
        if (!empty($authors)) {
            return array_unique($authors);
        } else {
            return false;
        }
    }

    public function get_date($date_format = 'j F Y, g:i a')
    {
        if (!empty($this->data['pubdate'])) {
            return date($date_format, $this->data['pubdate']);
        } elseif (!empty($this->data['dc:date'])) {
            return date($date_format, $this->data['dc:date']);
        } elseif (!empty($this->data['issued'])) {
            return date($date_format, $this->data['issued']);
        } elseif (!empty($this->data['published'])) {
            return date($date_format, $this->data['published']);
        } elseif (!empty($this->data['modified'])) {
            return date($date_format, $this->data['modified']);
        } elseif (!empty($this->data['updated'])) {
            return date($date_format, $this->data['updated']);
        } else {
            return false;
        }
    }

    public function get_permalink()
    {
        $link = $this->get_link(0);
        $enclosure = $this->get_enclosure(0);
        if (!empty($link)) {
            return $link;
        } elseif (!empty($enclosure)) {
            return $enclosure->get_link();
        } else {
            return false;
        }
    }

    public function get_link($key = 0, $rel = 'alternate')
    {
        $links = $this->get_links($rel);
        if (!empty($links[$key])) {
            return $links[$key];
        } else {
            return false;
        }
    }

    public function get_links($rel = 'alternate')
    {
        if ($rel == 'alternate') {
            $links = array();
            if (!empty($this->data['link'][$rel])) {
                $links = $this->data['link'][$rel];
            }
            if (!empty($this->data['guid']['data']) && $this->data['guid']['permalink'] == true) {
                $links[] = $this->data['guid']['data'];
            }
            return $links;
        } elseif (!empty($this->data['link'][$rel])) {
            return $this->data['link'][$rel];
        } else {
            return false;
        }
    }

    public function get_enclosure($key = 0)
    {
        $enclosures = $this->get_enclosures();
        if (!empty($enclosures[$key])) {
            return $enclosures[$key];
        } else {
            return false;
        }
    }

    public function get_enclosures()
    {
        $enclosures = array();
        $links = $this->get_links('enclosure');
        if (!empty($this->data['enclosures'])) {
            $enclosures = array_merge($enclosures, $this->data['enclosures']);
        }
        if (!empty($links)) {
            $enclosures = array_merge($enclosures, $links);
        }
        if (!empty($enclosures)) {
            return array_unique($enclosures);
        } else {
            return false;
        }
    }

    public function add_to_blinklist()
    {
        if ($this->get_permalink()) {
            $url = 'http://www.blinklist.com/index.php?Action=Blink/addblink.php&amp;Description=&amp;Url=' . rawurlencode($this->get_permalink());
            if ($this->get_title()) {
                $url .= '&amp;Title=' . rawurlencode($this->get_title());
            }
            return $url;
        } else {
            return false;
        }
    }

    public function add_to_blogmarks()
    {
        if ($this->get_permalink()) {
            $url = 'http://blogmarks.net/my/new.php?mini=1&amp;simple=1&amp;url=' . rawurlencode($this->get_permalink());
            if ($this->get_title()) {
                $url .= '&amp;title=' . rawurlencode($this->get_title());
            }
            return $url;
        } else {
            return false;
        }
    }

    public function add_to_delicious()
    {
        if ($this->get_permalink()) {
            $url = 'http://del.icio.us/post/?v=3&amp;url=' . rawurlencode($this->get_permalink());
            if ($this->get_title()) {
                $url .= '&amp;title=' . rawurlencode($this->get_title());
            }
            return $url;
        } else {
            return false;
        }
    }

    public function add_to_digg()
    {
        if ($this->get_permalink()) {
            return 'http://digg.com/submit?phase=2&amp;URL=' . rawurlencode($this->get_permalink());
        } else {
            return false;
        }
    }

    public function add_to_furl()
    {
        if ($this->get_permalink()) {
            $url = 'http://www.furl.net/storeIt.jsp?u=' . rawurlencode($this->get_permalink());
            if ($this->get_title()) {
                $url .= '&amp;t=' . rawurlencode($this->get_title());
            }
            return $url;
        } else {
            return false;
        }
    }

    public function add_to_magnolia()
    {
        if ($this->get_permalink()) {
            $url = 'http://ma.gnolia.com/bookmarklet/add?url=' . rawurlencode($this->get_permalink());
            if ($this->get_title()) {
                $url .= '&amp;title=' . rawurlencode($this->get_title());
            }
            return $url;
        } else {
            return false;
        }
    }

    public function add_to_myweb20()
    {
        if ($this->get_permalink()) {
            $url = 'http://myweb2.search.yahoo.com/myresults/bookmarklet?u=' . rawurlencode($this->get_permalink());
            if ($this->get_title()) {
                $url .= '&amp;t=' . rawurlencode($this->get_title());
            }
            return $url;
        } else {
            return false;
        }
    }

    public function add_to_newsvine()
    {
        if ($this->get_permalink()) {
            $url = 'http://www.newsvine.com/_wine/save?u=' . rawurlencode($this->get_permalink());
            if ($this->get_title()) {
                $url .= '&amp;h=' . rawurlencode($this->get_title());
            }
            return $url;
        } else {
            return false;
        }
    }

    public function add_to_reddit()
    {
        if ($this->get_permalink()) {
            $url = 'http://reddit.com/submit?url=' . rawurlencode($this->get_permalink());
            if ($this->get_title()) {
                $url .= '&amp;title=' . rawurlencode($this->get_title());
            }
            return $url;
        } else {
            return false;
        }
    }

    public function add_to_segnalo()
    {
        if ($this->get_permalink()) {
            $url = 'http://segnalo.com/post.html.php?url=' . rawurlencode($this->get_permalink());
            if ($this->get_title()) {
                $url .= '&amp;title=' . rawurlencode($this->get_title());
            }
            return $url;
        } else {
            return false;
        }
    }

    public function add_to_simpy()
    {
        if ($this->get_permalink()) {
            $url = 'http://www.simpy.com/simpy/LinkAdd.do?href=' . rawurlencode($this->get_permalink());
            if ($this->get_title()) {
                $url .= '&amp;title=' . rawurlencode($this->get_title());
            }
            return $url;
        } else {
            return false;
        }
    }

    public function add_to_smarking()
    {
        if ($this->get_permalink()) {
            return 'http://smarking.com/editbookmark/?url=' . rawurlencode($this->get_permalink());
        } else {
            return false;
        }
    }

    public function add_to_spurl()
    {
        if ($this->get_permalink()) {
            $url = 'http://www.spurl.net/spurl.php?v=3&amp;url=' . rawurlencode($this->get_permalink());
            if ($this->get_title()) {
                $url .= '&amp;title=' . rawurlencode($this->get_title());
            }
            return $url;
        } else {
            return false;
        }
    }

    public function add_to_wists()
    {
        if ($this->get_permalink()) {
            $url = 'http://wists.com/r.php?c=&amp;r=' . rawurlencode($this->get_permalink());
            if ($this->get_title()) {
                $url .= '&amp;title=' . rawurlencode($this->get_title());
            }
            return $url;
        } else {
            return false;
        }
    }

    public function search_technorati()
    {
        if ($this->get_permalink()) {
            return 'http://www.technorati.com/search/' . rawurlencode($this->get_permalink());
        } else {
            return false;
        }
    }
}

class SimplePie_Author
{
    public $name;
    public $link;
    public $email;

    // Constructor, used to input the data
    public function __construct($name, $link, $email)
    {
        $this->name = $name;
        $this->link = $link;
        $this->email = $email;
    }

    public function get_name()
    {
        if (!empty($this->name)) {
            return $this->name;
        } else {
            return false;
        }
    }

    public function get_link()
    {
        if (!empty($this->link)) {
            return $this->link;
        } else {
            return false;
        }
    }

    public function get_email()
    {
        if (!empty($this->email)) {
            return $this->email;
        } else {
            return false;
        }
    }
}

class SimplePie_Enclosure
{
    public $link;
    public $type;
    public $length;

    // Constructor, used to input the data
    public function __construct($link, $type, $length)
    {
        $this->link = $link;
        $this->type = $type;
        $this->length = $length;
    }

    public function get_link()
    {
        if (!empty($this->link)) {
            if (class_exists('idna_convert')) {
                $idn = new idna_convert;
                $this->link = $idn->encode($this->link);
            }
            return $this->link;
        } else {
            return false;
        }
    }

    public function get_extension()
    {
        if (!empty($this->link)) {
            return pathinfo($this->link, PATHINFO_EXTENSION);
        } else {
            return false;
        }
    }

    public function get_type()
    {
        if (!empty($this->type)) {
            return $this->type;
        } else {
            return false;
        }
    }

    public function get_length()
    {
        if (!empty($this->length)) {
            return $this->length;
        } else {
            return false;
        }
    }

    public function get_size()
    {
        $length = $this->get_length();
        if (!empty($length)) {
            return round($length/1048576, 2);
        } else {
            return false;
        }
    }

    public function native_embed($options='')
    {
        return $this->embed($options, true);
    }

    public function embed($options = '', $native = false)
    {
        // Set up defaults
        $audio = '';
        $video = '';
        $alt = '';
        $altclass = '';
        $loop = 'false';
        $width = 'auto';
        $height = 'auto';
        $bgcolor = '#ffffff';

        // Process options and reassign values as necessary
        if (is_array($options)) {
            extract($options);
        } else {
            $options = explode(',', $options);
            foreach ($options as $option) {
                $opt = explode(':', $option, 2);
                if (isset($opt[0], $opt[1])) {
                    $opt[0] = trim($opt[0]);
                    $opt[1] = trim($opt[1]);
                    switch ($opt[0]) {
                        case 'audio':
                            $audio = $opt[1];
                            break;

                        case 'video':
                            $video = $opt[1];
                            break;

                        case 'alt':
                            $alt = $opt[1];
                            break;

                        case 'altclass':
                            $altclass = $opt[1];
                            break;

                        case 'loop':
                            $loop = $opt[1];
                            break;

                        case 'width':
                            $width = $opt[1];
                            break;

                        case 'height':
                            $height = $opt[1];
                            break;

                        case 'bgcolor':
                            $bgcolor = $opt[1];
                            break;
                    }
                }
            }
        }

        $type = strtolower($this->get_type());

        // If we encounter an unsupported mime-type, check the file extension and guess intelligently.
        if (!in_array($type, array('audio/3gpp', 'audio/3gpp2', 'audio/aac', 'audio/x-aac', 'audio/aiff', 'audio/x-aiff', 'audio/mid', 'audio/midi', 'audio/x-midi', 'audio/mpeg', 'audio/x-mpeg', 'audio/mp3', 'x-audio/mp3', 'audio/mp4', 'audio/m4a', 'audio/x-m4a', 'audio/wav', 'audio/x-wav', 'video/3gpp', 'video/3gpp2', 'video/m4v', 'video/x-m4v', 'video/mp4', 'video/mpeg', 'video/x-mpeg', 'video/quicktime', 'video/sd-video', 'application/x-shockwave-flash', 'application/futuresplash', 'application/asx', 'application/x-mplayer2', 'audio/x-ms-wma', 'audio/x-ms-wax', 'video/x-ms-asf-plugin', 'video/x-ms-asf', 'video/x-ms-wm', 'video/x-ms-wmv', 'video/x-ms-wvx'))) {
            switch (strtolower($this->get_extension())) {
                // Audio mime-types
                case 'aac':
                case 'adts':
                    $type = 'audio/acc';
                    break;

                case 'aif':
                case 'aifc':
                case 'aiff':
                case 'cdda':
                    $type = 'audio/aiff';
                    break;

                case 'bwf':
                    $type = 'audio/wav';
                    break;

                case 'kar':
                case 'mid':
                case 'midi':
                case 'smf':
                    $type = 'audio/midi';
                    break;

                case 'm4a':
                    $type = 'audio/x-m4a';
                    break;

                case 'mp3':
                case 'swa':
                    $type = 'audio/mp3';
                    break;

                case 'wav':
                    $type = 'audio/wav';
                    break;

                case 'wax':
                    $type = 'audio/x-ms-wax';
                    break;

                case 'wma':
                    $type = 'audio/x-ms-wma';
                    break;

                // Video mime-types
                case '3gp':
                case '3gpp':
                    $type = 'video/3gpp';
                    break;

                case '3g2':
                case '3gp2':
                    $type = 'video/3gpp2';
                    break;

                case 'asf':
                    $type = 'video/x-ms-asf';
                    break;

                case 'm1a':
                case 'm1s':
                case 'm1v':
                case 'm15':
                case 'm75':
                case 'mp2':
                case 'mpa':
                case 'mpeg':
                case 'mpg':
                case 'mpm':
                case 'mpv':
                    $type = 'video/mpeg';
                    break;

                case 'm4v':
                    $type = 'video/x-m4v';
                    break;

                case 'mov':
                case 'qt':
                    $type = 'video/quicktime';
                    break;

                case 'mp4':
                case 'mpg4':
                    $type = 'video/mp4';
                    break;

                case 'sdv':
                    $type = 'video/sd-video';
                    break;

                case 'wm':
                    $type = 'video/x-ms-wm';
                    break;

                case 'wmv':
                    $type = 'video/x-ms-wmv';
                    break;

                case 'wvx':
                    $type = 'video/x-ms-wvx';
                    break;

                // Flash mime-types
                case 'spl':
                    $type = 'application/futuresplash';
                    break;

                case 'swf':
                    $type = 'application/x-shockwave-flash';
                    break;
            }
        }

        $mime = explode('/', $type, 2);
        $mime = $mime[0];

        // Process values for 'auto'
        if ($width == 'auto') {
            if ($mime == 'video') {
                $width = '320';
            } else {
                $width = '100%';
            }
        }
        if ($height == 'auto') {
            if ($mime == 'audio') {
                $height = 0;
            } elseif ($mime == 'video') {
                $height = 240;
            } else {
                $height = 256;
            }
        }

        // Set proper placeholder value
        if ($mime == 'audio') {
            $placeholder = $audio;
        } elseif ($mime == 'video') {
            $placeholder = $video;
        }

        $embed = '';

        // Make sure the JS library is included
        // (I know it'll be included multiple times, but I can't think of a better way to do this automatically)
        if (!$native) {
            $embed .= '<script type="text/javascript" src="?js"></script>';
        }

        // Odeo Feed MP3's
        if (substr(strtolower($this->get_link()), 0, 15) == 'http://odeo.com') {
            if ($native) {
                $embed .= '<embed src="http://odeo.com/flash/audio_player_fullsize.swf" pluginspage="http://www.macromedia.com/go/getflashplayer" type="application/x-shockwave-flash" quality="high" width="440" height="80" wmode="transparent" allowScriptAccess="any" flashvars="valid_sample_rate=true&external_url=' . $this->get_link() . '"></embed>';
            } else {
                $embed .= '<script type="text/javascript">embed_odeo("' . $this->get_link() . '");</script>';
            }
        }

        // QuickTime 7 file types.  Need to test with QuickTime 6.
        elseif (in_array($type, array('audio/3gpp', 'audio/3gpp2', 'audio/aac', 'audio/x-aac', 'audio/aiff', 'audio/x-aiff', 'audio/mid', 'audio/midi', 'audio/x-midi', 'audio/mpeg', 'audio/x-mpeg', 'audio/mp3', 'x-audio/mp3', 'audio/mp4', 'audio/m4a', 'audio/x-m4a', 'audio/wav', 'audio/x-wav', 'video/3gpp', 'video/3gpp2', 'video/m4v', 'video/x-m4v', 'video/mp4', 'video/mpeg', 'video/x-mpeg', 'video/quicktime', 'video/sd-video'))) {
            $height += 16;
            if ($native) {
                if ($placeholder != "") {
                    $embed .= "<embed type=\"$type\" style=\"cursor:hand; cursor:pointer;\" href=\"" . $this->get_link() . "\" src=\"$placeholder\" width=\"$width\" height=\"$height\" autoplay=\"false\" target=\"myself\" controller=\"false\" loop=\"$loop\" scale=\"aspect\" bgcolor=\"$bgcolor\" pluginspage=\"http://www.apple.com/quicktime/download/\"></embed>";
                } else {
                    $embed .= "<embed type=\"$type\" style=\"cursor:hand; cursor:pointer;\" src=\"" . $this->get_link() . "\" width=\"$width+\" height=\"$height\" autoplay=\"false\" target=\"myself\" controller=\"true\" loop=\"$loop\" scale=\"aspect\" bgcolor=\"$bgcolor\" pluginspage=\"http://www.apple.com/quicktime/download/\"></embed>";
                }
            } else {
                $embed .= "<script type='text/javascript'>embed_quicktime('$type', '$bgcolor', '$width', '$height', '" . $this->get_link() . "', '$placeholder', '$loop');</script>";
            }
        }

        // Flash
        elseif (in_array($type, array('application/x-shockwave-flash', 'application/futuresplash'))) {
            if ($native) {
                $embed .= "<embed src=\"" . $this->get_link() . "\" pluginspage=\"http://www.macromedia.com/shockwave/download/index.cgi?P1_Prod_Version=ShockwaveFlash\" type=\"$type\" quality=\"high\" width=\"$width\" height=\"$height\" bgcolor=\"$bgcolor\" loop=\"$loop\"></embed>";
            } else {
                $embed .= "<script type='text/javascript'>embed_flash('$bgcolor', '$width', '$height', '" . $this->get_link() . "', '$loop', '$type');</script>";
            }
        }

        // Windows Media
        elseif (in_array($type, array('application/asx', 'application/x-mplayer2', 'audio/x-ms-wma', 'audio/x-ms-wax', 'video/x-ms-asf-plugin', 'video/x-ms-asf', 'video/x-ms-wm', 'video/x-ms-wmv', 'video/x-ms-wvx'))) {
            $height += 45;
            if ($native) {
                $embed .= "<embed type=\"application/x-mplayer2\" src=\"" . $this->get_link() . "\" autosize=\"1\" width=\"$width\" height=\"$height\" showcontrols=\"1\" showstatusbar=\"0\" showdisplay=\"0\" autostart=\"0\"></embed>";
            } else {
                $embed .= "<script type='text/javascript'>embed_wmedia('$width', '$height', '" . $this->get_link() . "');</script>";
            }
        }

        // Everything else
        else {
            $embed .= '<a href="' . $this->get_link() . '" class="' . $altclass . '">' . $alt . '</a>';
        }

        return $embed;
    }
}

class SimplePie_File
{
    public $url;
    public $useragent;
    public $success = true;
    public $headers = array();
    public $body;
    public $fp;
    public $redirects = 0;
    public $error;
    public $method;

    public function __construct($url, $timeout = 10, $redirects = 5, $headers = null, $useragent = null, $force_fsockopen = false)
    {
        if (class_exists('idna_convert')) {
            $idn = new idna_convert;
            $url = $idn->encode($url);
        }
        $this->url = $url;
        $this->useragent = $useragent;
        if (preg_match('/^http(s)?:\/\//i', $url)) {
            if (empty($useragent)) {
                $useragent = ini_get('user_agent');
                $this->useragent = $useragent;
            }
            if (!is_array($headers)) {
                $headers = array();
            }
            if (extension_loaded('curl') && version_compare(SimplePie_Misc::get_curl_version(), '7.10.5', '>=') && !$force_fsockopen) {
                $this->method = 'curl';
                $fp = curl_init();
                $headers2 = array();
                foreach ($headers as $key => $value) {
                    $headers2[] = "$key: $value";
                }
                curl_setopt($fp, CURLOPT_ENCODING, '');
                curl_setopt($fp, CURLOPT_URL, $url);
                curl_setopt($fp, CURLOPT_HEADER, 1);
                curl_setopt($fp, CURLOPT_RETURNTRANSFER, 1);
                curl_setopt($fp, CURLOPT_TIMEOUT, $timeout);
                curl_setopt($fp, CURLOPT_REFERER, $url);
                curl_setopt($fp, CURLOPT_USERAGENT, $useragent);
                curl_setopt($fp, CURLOPT_HTTPHEADER, $headers2);
                if (!ini_get('open_basedir') && !ini_get('safe_mode')) {
                    curl_setopt($fp, CURLOPT_FOLLOWLOCATION, 1);
                    curl_setopt($fp, CURLOPT_MAXREDIRS, $redirects);
                }

                $this->headers = trim(curl_exec($fp));
                if (curl_errno($fp) == 23 || curl_errno($fp) == 61) {
                    curl_setopt($fp, CURLOPT_ENCODING, 'none');
                    $this->headers = trim(curl_exec($fp));
                }
                if (curl_errno($fp)) {
                    $this->error = 'cURL error ' . curl_errno($fp) . ': ' . curl_error($fp);
                    $this->success = false;
                    return false;
                }
                $info = curl_getinfo($fp);
                $this->headers = explode("\r\n\r\n", $this->headers, $info['redirect_count'] + 2);
                if (count($this->headers) == $info['redirect_count'] + 1) {
                    $this->headers = array_pop($this->headers);
                    $this->body = '';
                } else {
                    $this->body = array_pop($this->headers);
                    $this->headers = array_pop($this->headers);
                }
                $this->headers = $this->parse_headers($this->headers);
                if (($this->headers['status']['code'] == 301 || $this->headers['status']['code'] == 302 || $this->headers['status']['code'] == 303 || $this->headers['status']['code'] == 307) && !empty($this->headers['location']) && $this->redirects < $redirects) {
                    $this->redirects++;
                    return $this->SimplePie_File($this->headers['location'], $timeout, $redirects, $headers, $useragent, $force_fsockopen);
                }
            } else {
                $this->method = 'fsockopen';
                $url_parts = parse_url($url);
                if (isset($url_parts['scheme']) && strtolower($url_parts['scheme']) == 'https') {
                    $url_parts['host'] = "ssl://$url_parts[host]";
                    $url_parts['port'] = 443;
                }
                if (!isset($url_parts['port'])) {
                    $url_parts['port'] = 80;
                }
                $this->fp = @fsockopen($url_parts['host'], $url_parts['port'], $errno, $errstr, $timeout);
                if (!$this->fp) {
                    $this->error = 'fsockopen error: ' . $errstr;
                    $this->success = false;
                    return false;
                } else {
                    stream_set_timeout($this->fp, $timeout);
                    $get = (isset($url_parts['query'])) ? "$url_parts[path]?$url_parts[query]" : $url_parts['path'];
                    $out = "GET $get HTTP/1.0\r\n";
                    $out .= "Host: $url_parts[host]\r\n";
                    $out .= "User-Agent: $useragent\r\n";
                    if (function_exists('gzinflate')) {
                        $out .= "Accept-Encoding: gzip,deflate\r\n";
                    }

                    if (!empty($url_parts['user']) && !empty($url_parts['pass'])) {
                        $out .= "Authorization: Basic " . base64_encode("$url_parts[user]:$url_parts[pass]") . "\r\n";
                    }
                    foreach ($headers as $key => $value) {
                        $out .= "$key: $value\r\n";
                    }
                    $out .= "Connection: Close\r\n\r\n";
                    fwrite($this->fp, $out);

                    $info = stream_get_meta_data($this->fp);
                    $data = '';
                    while (strpos($data, "\r\n\r\n") === false && !$info['timed_out']) {
                        $data .= fgets($this->fp, 128);
                        $info = @stream_get_meta_data($this->fp);
                    }
                    if (!$info['timed_out']) {
                        $this->headers = $this->parse_headers($data);
                        if (($this->headers['status']['code'] == 301 || $this->headers['status']['code'] == 302 || $this->headers['status']['code'] == 303 || $this->headers['status']['code'] == 307) && !empty($this->headers['location']) && $this->redirects < $redirects) {
                            $this->redirects++;
                            return $this->SimplePie_File($this->headers['location'], $timeout, $redirects, $headers, $useragent, $force_fsockopen);
                        }
                    } else {
                        $this->close();
                        $this->error = 'fsocket timed out';
                        $this->success = false;
                        return false;
                    }
                }
            }
            return $this->headers['status']['code'];
        } else {
            $this->method = 'fopen';
            if ($this->fp = fopen($url, 'r')) {
                return true;
            } else {
                $this->error = 'fopen could not open the file';
                $this->success = false;
                return false;
            }
        }
    }

    public function headers()
    {
        return $this->headers;
    }

    public function body()
    {
        if (is_null($this->body)) {
            if ($this->fp) {
                $info = stream_get_meta_data($this->fp);
                $this->body = '';
                while (!$info['eof'] && !$info['timed_out']) {
                    $this->body .= fread($this->fp, 1024);
                    $info = stream_get_meta_data($this->fp);
                }
                if (!$info['timed_out']) {
                    $this->body = trim($this->body);
                    if ($this->method == 'fsockopen' && !empty($this->headers['content-encoding']) && ($this->headers['content-encoding'] == 'gzip' || $this->headers['content-encoding'] == 'deflate')) {
                        if (substr($this->body, 0, 8) == "\x1f\x8b\x08\x00\x00\x00\x00\x00") {
                            $this->body = substr($this->body, 10);
                        }
                        $this->body = gzinflate($this->body);
                    }
                    $this->close();
                } else {
                    return false;
                }
            } else {
                return false;
            }
        }
        return $this->body;
    }

    public function close()
    {
        if (!is_null($this->fp)) {
            if (fclose($this->fp)) {
                $this->fp = null;
                return true;
            } else {
                return false;
            }
        } else {
            return false;
        }
    }

    public function parse_headers($headers)
    {
        $headers = explode("\r\n", trim($headers));
        $status = array_shift($headers);
        foreach ($headers as $header) {
            $data = explode(':', $header, 2);
            $head[strtolower(trim($data[0]))] = trim($data[1]);
        }
        if (preg_match('/HTTP\/[0-9\.]+ ([0-9]+)(.*)$/i', $status, $matches)) {
            if (isset($head['status'])) {
                unset($head['status']);
            }
            $head['status']['code'] = $matches[1];
            $head['status']['name'] = trim($matches[2]);
        }
        return $head;
    }
}

class SimplePie_Cache
{
    public $location;
    public $filename;
    public $extension;
    public $name;

    public function __construct($location, $filename, $extension)
    {
        $this->location = $location;
        $this->filename = rawurlencode($filename);
        $this->extension = rawurlencode($extension);
        $this->name = "$location/$this->filename.$this->extension";
    }

    public function save($data)
    {
        if (file_exists($this->name) && is_writeable($this->name) || file_exists($this->location) && is_writeable($this->location)) {
            $fp = fopen($this->name, 'w');
            if ($fp) {
                fwrite($fp, serialize($data));
                fclose($fp);
                return true;
            }
        }
        return false;
    }

    public function load()
    {
        if (file_exists($this->name) && is_readable($this->name)) {
            return unserialize(file_get_contents($this->name));
        }
        return false;
    }

    public function mtime()
    {
        if (file_exists($this->name)) {
            return filemtime($this->name);
        }
        return false;
    }

    public function touch()
    {
        if (file_exists($this->name)) {
            return touch($this->name);
        }
        return false;
    }

    public function unlink()
    {
        if (file_exists($this->name)) {
            return unlink($this->name);
        }
        return false;
    }
}

class SimplePie_Misc
{
    public function absolutize_url($relative, $base)
    {
        $relative = trim($relative);
        $base = trim($base);
        if (!empty($relative)) {
            $relative = SimplePie_Misc::parse_url($relative, false);
            $relative = array('scheme' => $relative[2], 'authority' => $relative[3], 'path' => $relative[5], 'query' => $relative[7], 'fragment' => $relative[9]);
            if (!empty($relative['scheme'])) {
                $target = $relative;
            } elseif (!empty($base)) {
                $base = SimplePie_Misc::parse_url($base, false);
                $base = array('scheme' => $base[2], 'authority' => $base[3], 'path' => $base[5], 'query' => $base[7], 'fragment' => $base[9]);
                $target['scheme'] = $base['scheme'];
                if (!empty($relative['authority'])) {
                    $target = array_merge($relative, $target);
                } else {
                    $target['authority'] = $base['authority'];
                    if (!empty($relative['path'])) {
                        if (strpos($relative['path'], '/') === 0) {
                            $target['path'] = $relative['path'];
                        } else {
                            if (!empty($base['path'])) {
                                $target['path'] = dirname("$base[path].") . '/' . $relative['path'];
                            } else {
                                $target['path'] = '/' . $relative['path'];
                            }
                        }
                        if (!empty($relative['query'])) {
                            $target['query'] = $relative['query'];
                        }
                        $input = $target['path'];
                        $target['path'] = '';
                        while (!empty($input)) {
                            if (strpos($input, '../') === 0) {
                                $input = substr($input, 3);
                            } elseif (strpos($input, './') === 0) {
                                $input = substr($input, 2);
                            } elseif (strpos($input, '/./') === 0) {
                                $input = substr_replace($input, '/', 0, 3);
                            } elseif (strpos($input, '/.') === 0 && SimplePie_Misc::strendpos($input, '/.') === 0) {
                                $input = substr_replace($input, '/', -2);
                            } elseif (strpos($input, '/../') === 0) {
                                $input = substr_replace($input, '/', 0, 4);
                                $target['path'] = preg_replace('/(\/)?([^\/]+)$/msiU', '', $target['path']);
                            } elseif (strpos($input, '/..') === 0 && SimplePie_Misc::strendpos($input, '/..') === 0) {
                                $input = substr_replace($input, '/', 0, 3);
                                $target['path'] = preg_replace('/(\/)?([^\/]+)$/msiU', '', $target['path']);
                            } elseif ($input == '.' || $input == '..') {
                                $input = '';
                            } else {
                                if (preg_match('/^(.+)(\/|$)/msiU', $input, $match)) {
                                    $target['path'] .= $match[1];
                                    $input = substr_replace($input, '', 0, strlen($match[1]));
                                }
                            }
                        }
                    } else {
                        if (!empty($base['path'])) {
                            $target['path'] = $base['path'];
                        } else {
                            $target['path'] = '/';
                        }
                        if (!empty($relative['query'])) {
                            $target['query'] = $relative['query'];
                        } elseif (!empty($base['query'])) {
                            $target['query'] = $base['query'];
                        }
                    }
                }
                if (!empty($relative['fragment'])) {
                    $target['fragment'] = $relative['fragment'];
                }
            } else {
                return false;
            }
            $return = '';
            if (!empty($target['scheme'])) {
                $return .= "$target[scheme]:";
            }
            if (!empty($target['authority'])) {
                $return .= $target['authority'];
            }
            if (!empty($target['path'])) {
                $return .= $target['path'];
            }
            if (!empty($target['query'])) {
                $return .= "?$target[query]";
            }
            if (!empty($target['fragment'])) {
                $return .= "#$target[fragment]";
            }
        } else {
            $return = $base;
        }
        return $return;
    }

    public function strendpos($haystack, $needle)
    {
        return strlen($haystack) - strpos($haystack, $needle) - strlen($needle);
    }

    public function get_element($realname, $string)
    {
        $return = array();
        $name = preg_quote($realname, '/');
        preg_match_all("/<($name)((\s*((\w+:)?\w+)\s*=\s*(\"([^\"]*)\"|'([^']*)'|(.*)))*)\s*((\/)?>|>(.*)<\/$name>)/msiU", $string, $matches, PREG_SET_ORDER);
        for ($i = 0; $i < count($matches); $i++) {
            $return[$i]['tag'] = $realname;
            $return[$i]['full'] = $matches[$i][0];
            if (strlen($matches[$i][10]) <= 2) {
                $return[$i]['self_closing'] = true;
            } else {
                $return[$i]['self_closing'] = false;
                $return[$i]['content'] = $matches[$i][12];
            }
            $return[$i]['attribs'] = array();
            if (!empty($matches[$i][2])) {
                preg_match_all('/((\w+:)?\w+)\s*=\s*("([^"]*)"|\'([^\']*)\'|(\S+))\s/msiU', ' ' . $matches[$i][2] . ' ', $attribs, PREG_SET_ORDER);
                for ($j = 0; $j < count($attribs);  $j++) {
                    $return[$i]['attribs'][strtoupper($attribs[$j][1])]['data'] = $attribs[$j][count($attribs[$j])-1];
                    $first = substr($attribs[$j][2], 0, 1);
                    $return[$i]['attribs'][strtoupper($attribs[$j][1])]['split'] = ($first == '"' || $first == "'") ? $first : '"';
                }
            }
        }
        return $return;
    }

    public function element_implode($element)
    {
        $full = "<$element[tag]";
        foreach ($element['attribs'] as $key => $value) {
            $key = strtolower($key);
            $full .= " $key=$value[split]$value[data]$value[split]";
        }
        if ($element['self_closing']) {
            $full .= ' />';
        } else {
            $full .= ">$element[content]</$element[tag]>";
        }
        return $full;
    }

    public function error($message, $level, $file, $line)
    {
        switch ($level) {
            case E_USER_ERROR:
                $note = 'PHP Error';
                break;
            case E_USER_WARNING:
                $note = 'PHP Warning';
                break;
            case E_USER_NOTICE:
                $note = 'PHP Notice';
                break;
            default:
                $note = 'Unknown Error';
                break;
        }
        error_log("$note: $message in $file on line $line", 0);
        return $message;
    }

    public function display_file($url, $timeout = 10, $useragent = null)
    {
        $file = new SimplePie_File($url, $timeout, 5, array('X-FORWARDED-FOR' => $_SERVER['REMOTE_ADDR']), $useragent);
        $headers = $file->headers();
        if ($file->body() !== false) {
            header('Content-type: ' . $headers['content-type']);
            echo $file->body();
            exit;
        }
    }

    public function fix_protocol($url, $http = 1)
    {
        $parsed = SimplePie_Misc::parse_url($url);
        if (!empty($parsed['scheme']) && strtolower($parsed['scheme']) != 'http' && strtolower($parsed['scheme']) != 'https') {
            return SimplePie_Misc::fix_protocol("$parsed[authority]$parsed[path]$parsed[query]$parsed[fragment]", $http);
        }
        if (!file_exists($url) && empty($parsed['scheme'])) {
            return SimplePie_Misc::fix_protocol("http://$url", $http);
        }

        if ($http == 2 && !empty($parsed['scheme'])) {
            return "feed:$url";
        } elseif ($http == 3 && strtolower($parsed['scheme']) == 'http') {
            return substr_replace($url, 'podcast', 0, 4);
        } else {
            return $url;
        }
    }

    public function parse_url($url, $parse_match = true)
    {
        preg_match('/^(([^:\/?#]+):)?(\/\/([^\/?#]*))?([^?#]*)(\?([^#]*))?(#(.*))?/i', $url, $match);
        if (empty($match[0])) {
            return false;
        } else {
            for ($i = 6; $i < 10; $i++) {
                if (!isset($match[$i])) {
                    $match[$i] = '';
                }
            }
            if ($parse_match) {
                $match = array('scheme' => $match[2], 'authority' => $match[4], 'path' => $match[5], 'query' => $match[6], 'fragment' => $match[8]);
            }
            return $match;
        }
    }

    /**
     * Replace bad bytes
     *
     * PCRE Pattern to locate bad bytes in a UTF-8 string
     * Comes from W3 FAQ: Multilingual Forms
     * Note: modified to include full ASCII range including control chars
     *
     * Modified by Geoffrey Sneddon 2006-11-19 to remove functionality
     * to choose what the replace string is, and to use a variable for
     * the output instead of PHP's output buffer
     */
    public function utf8_bad_replace($str)
    {
        $UTF8_BAD =
         '([\x00-\x7F]' .                            # ASCII (including control chars)
         '|[\xC2-\xDF][\x80-\xBF]' .                # non-overlong 2-byte
         '|\xE0[\xA0-\xBF][\x80-\xBF]' .            # excluding overlongs
         '|[\xE1-\xEC\xEE\xEF][\x80-\xBF]{2}' .        # straight 3-byte
         '|\xED[\x80-\x9F][\x80-\xBF]' .            # excluding surrogates
         '|\xF0[\x90-\xBF][\x80-\xBF]{2}' .            # planes 1-3
         '|[\xF1-\xF3][\x80-\xBF]{3}' .                # planes 4-15
         '|\xF4[\x80-\x8F][\x80-\xBF]{2}' .            # plane 16
         '|(.{1}))';                                # invalid byte
        $output = '';
        while (preg_match('/' . $UTF8_BAD . '/S', $str, $matches)) {
            if (!isset($matches[2])) {
                $output .= $matches[0];
            }
            $str = substr($str, strlen($matches[0]));
        }
        return $output;
    }

    public function change_encoding($data, $input, $output)
    {
        $input = SimplePie_Misc::encoding($input);
        $output = SimplePie_Misc::encoding($output);

        if ($input != $output) {
            if (function_exists('iconv') && $input['use_iconv'] && $output['use_iconv'] && iconv($input['encoding'], "$output[encoding]//TRANSLIT", $data)) {
                return iconv($input['encoding'], "$output[encoding]//TRANSLIT", $data);
            } elseif (function_exists('iconv') && $input['use_iconv'] && $output['use_iconv'] && iconv($input['encoding'], $output['encoding'], $data)) {
                return iconv($input['encoding'], $output['encoding'], $data);
            } elseif (function_exists('mb_convert_encoding') && $input['use_mbstring'] && $output['use_mbstring']) {
                return mb_convert_encoding($data, $output['encoding'], $input['encoding']);
            } elseif ($input['encoding'] == 'ISO-8859-1' && $output['encoding'] == 'UTF-8') {
                return utf8_encode($data);
            } elseif ($input['encoding'] == 'UTF-8' && $output['encoding'] == 'ISO-8859-1') {
                return utf8_decode($data);
            }
        }
        return $data;
    }

    public function encoding($encoding)
    {
        $return['use_mbstring'] = false;
        $return['use_iconv'] = false;
        switch (strtolower($encoding)) {

            // 7bit
            case '7bit':
            case '7-bit':
                $return['encoding'] = '7bit';
                $return['use_mbstring'] = true;
                break;

            // 8bit
            case '8bit':
            case '8-bit':
                $return['encoding'] = '8bit';
                $return['use_mbstring'] = true;
                break;

            // ARMSCII-8
            case 'armscii-8':
            case 'armscii':
                $return['encoding'] = 'ARMSCII-8';
                $return['use_iconv'] = true;
                break;

            // ASCII
            case 'us-ascii':
            case 'ascii':
                $return['encoding'] = 'US-ASCII';
                $return['use_iconv'] = true;
                $return['use_mbstring'] = true;
                break;

            // BASE64
            case 'base64':
            case 'base-64':
                $return['encoding'] = 'BASE64';
                $return['use_mbstring'] = true;
                break;

            // Big5 - Traditional Chinese, mainly used in Taiwan
            case 'big5':
            case '950':
                $return['encoding'] = 'BIG5';
                $return['use_iconv'] = true;
                $return['use_mbstring'] = true;
                break;

            // Big5 with Hong Kong extensions, Traditional Chinese
            case 'big5-hkscs':
                $return['encoding'] = 'BIG5-HKSCS';
                $return['use_iconv'] = true;
                $return['use_mbstring'] = true;
                break;

            // byte2be
            case 'byte2be':
                $return['encoding'] = 'byte2be';
                $return['use_mbstring'] = true;
                break;

            // byte2le
            case 'byte2le':
                $return['encoding'] = 'byte2le';
                $return['use_mbstring'] = true;
                break;

            // byte4be
            case 'byte4be':
                $return['encoding'] = 'byte4be';
                $return['use_mbstring'] = true;
                break;

            // byte4le
            case 'byte4le':
                $return['encoding'] = 'byte4le';
                $return['use_mbstring'] = true;
                break;

            // EUC-CN
            case 'euc-cn':
            case 'euccn':
                $return['encoding'] = 'EUC-CN';
                $return['use_iconv'] = true;
                $return['use_mbstring'] = true;
                break;

            // EUC-JISX0213
            case 'euc-jisx0213':
            case 'eucjisx0213':
                $return['encoding'] = 'EUC-JISX0213';
                $return['use_iconv'] = true;
                break;

            // EUC-JP
            case 'euc-jp':
            case 'eucjp':
                $return['encoding'] = 'EUC-JP';
                $return['use_iconv'] = true;
                $return['use_mbstring'] = true;
                break;

            // EUCJP-win
            case 'euc-jp-win':
            case 'eucjp-win':
            case 'eucjpwin':
                $return['encoding'] = 'EUCJP-win';
                $return['use_iconv'] = true;
                $return['use_mbstring'] = true;
                break;

            // EUC-KR
            case 'euc-kr':
            case 'euckr':
                $return['encoding'] = 'EUC-KR';
                $return['use_iconv'] = true;
                $return['use_mbstring'] = true;
                break;

            // EUC-TW
            case 'euc-tw':
            case 'euctw':
                $return['encoding'] = 'EUC-TW';
                $return['use_iconv'] = true;
                $return['use_mbstring'] = true;
                break;

            // GB18030 - Simplified Chinese, national standard character set
            case 'gb18030-2000':
            case 'gb18030':
                $return['encoding'] = 'GB18030';
                $return['use_iconv'] = true;
                break;

            // GB2312 - Simplified Chinese, national standard character set
            case 'gb2312':
            case '936':
                $return['encoding'] = 'GB2312';
                $return['use_mbstring'] = true;
                break;

            // GBK
            case 'gbk':
                $return['encoding'] = 'GBK';
                $return['use_iconv'] = true;
                break;

            // Georgian-Academy
            case 'georgian-academy':
                $return['encoding'] = 'Georgian-Academy';
                $return['use_iconv'] = true;
                break;

            // Georgian-PS
            case 'georgian-ps':
                $return['encoding'] = 'Georgian-PS';
                $return['use_iconv'] = true;
                break;

            // HTML-ENTITIES
            case 'html-entities':
            case 'htmlentities':
                $return['encoding'] = 'HTML-ENTITIES';
                $return['use_mbstring'] = true;
                break;

            // HZ
            case 'hz':
                $return['encoding'] = 'HZ';
                $return['use_iconv'] = true;
                $return['use_mbstring'] = true;
                break;

            // ISO-2022-CN
            case 'iso-2022-cn':
            case 'iso2022-cn':
            case 'iso2022cn':
                $return['encoding'] = 'ISO-2022-CN';
                $return['use_iconv'] = true;
                break;

            // ISO-2022-CN-EXT
            case 'iso-2022-cn-ext':
            case 'iso2022-cn-ext':
            case 'iso2022cn-ext':
            case 'iso2022cnext':
                $return['encoding'] = 'ISO-2022-CN';
                $return['use_iconv'] = true;
                break;

            // ISO-2022-JP
            case 'iso-2022-jp':
            case 'iso2022-jp':
            case 'iso2022jp':
                $return['encoding'] = 'ISO-2022-JP';
                $return['use_iconv'] = true;
                $return['use_mbstring'] = true;
                break;

            // ISO-2022-JP-1
            case 'iso-2022-jp-1':
            case 'iso2022-jp-1':
            case 'iso2022jp-1':
            case 'iso2022jp1':
                $return['encoding'] = 'ISO-2022-JP-1';
                $return['use_iconv'] = true;
                break;

            // ISO-2022-JP-2
            case 'iso-2022-jp-2':
            case 'iso2022-jp-2':
            case 'iso2022jp-2':
            case 'iso2022jp2':
                $return['encoding'] = 'ISO-2022-JP-2';
                $return['use_iconv'] = true;
                break;

            // ISO-2022-JP-3
            case 'iso-2022-jp-3':
            case 'iso2022-jp-3':
            case 'iso2022jp-3':
            case 'iso2022jp3':
                $return['encoding'] = 'ISO-2022-JP-3';
                $return['use_iconv'] = true;
                break;

            // ISO-2022-KR
            case 'iso-2022-kr':
            case 'iso2022-kr':
            case 'iso2022kr':
                $return['encoding'] = 'ISO-2022-KR';
                $return['use_iconv'] = true;
                $return['use_mbstring'] = true;
                break;

            // ISO-8859-1
            case 'iso-8859-1':
            case 'iso8859-1':
                $return['encoding'] = 'ISO-8859-1';
                $return['use_iconv'] = true;
                $return['use_mbstring'] = true;
                break;

            // ISO-8859-2
            case 'iso-8859-2':
            case 'iso8859-2':
                $return['encoding'] = 'ISO-8859-2';
                $return['use_iconv'] = true;
                $return['use_mbstring'] = true;
                break;

            // ISO-8859-3
            case 'iso-8859-3':
            case 'iso8859-3':
                $return['encoding'] = 'ISO-8859-3';
                $return['use_iconv'] = true;
                $return['use_mbstring'] = true;
                break;

            // ISO-8859-4
            case 'iso-8859-4':
            case 'iso8859-4':
                $return['encoding'] = 'ISO-8859-4';
                $return['use_iconv'] = true;
                $return['use_mbstring'] = true;
                break;

            // ISO-8859-5
            case 'iso-8859-5':
            case 'iso8859-5':
                $return['encoding'] = 'ISO-8859-5';
                $return['use_iconv'] = true;
                $return['use_mbstring'] = true;
                break;

            // ISO-8859-6
            case 'iso-8859-6':
            case 'iso8859-6':
                $return['encoding'] = 'ISO-8859-6';
                $return['use_iconv'] = true;
                $return['use_mbstring'] = true;
                break;

            // ISO-8859-7
            case 'iso-8859-7':
            case 'iso8859-7':
                $return['encoding'] = 'ISO-8859-7';
                $return['use_iconv'] = true;
                $return['use_mbstring'] = true;
                break;

            // ISO-8859-8
            case 'iso-8859-8':
            case 'iso8859-8':
                $return['encoding'] = 'ISO-8859-8';
                $return['use_iconv'] = true;
                $return['use_mbstring'] = true;
                break;

            // ISO-8859-9
            case 'iso-8859-9':
            case 'iso8859-9':
                $return['encoding'] = 'ISO-8859-9';
                $return['use_iconv'] = true;
                $return['use_mbstring'] = true;
                break;

            // ISO-8859-10
            case 'iso-8859-10':
            case 'iso8859-10':
                $return['encoding'] = 'ISO-8859-10';
                $return['use_iconv'] = true;
                $return['use_mbstring'] = true;
                break;

            // mbstring/iconv functions don't appear to support 11 & 12

            // ISO-8859-13
            case 'iso-8859-13':
            case 'iso8859-13':
                $return['encoding'] = 'ISO-8859-13';
                $return['use_iconv'] = true;
                $return['use_mbstring'] = true;
                break;

            // ISO-8859-14
            case 'iso-8859-14':
            case 'iso8859-14':
                $return['encoding'] = 'ISO-8859-14';
                $return['use_iconv'] = true;
                $return['use_mbstring'] = true;
                break;

            // ISO-8859-15
            case 'iso-8859-15':
            case 'iso8859-15':
                $return['encoding'] = 'ISO-8859-15';
                $return['use_iconv'] = true;
                $return['use_mbstring'] = true;
                break;

            // ISO-8859-16
            case 'iso-8859-16':
            case 'iso8859-16':
                $return['encoding'] = 'ISO-8859-16';
                $return['use_iconv'] = true;
                break;

            // JIS
            case 'jis':
                $return['encoding'] = 'JIS';
                $return['use_mbstring'] = true;
                break;

            // JOHAB - Korean
            case 'johab':
                $return['encoding'] = 'JOHAB';
                $return['use_iconv'] = true;
                break;

            // Russian
            case 'koi8-r':
            case 'koi8r':
                $return['encoding'] = 'KOI8-R';
                $return['use_iconv'] = true;
                $return['use_mbstring'] = true;
                break;

            // Turkish
            case 'koi8-t':
            case 'koi8t':
                $return['encoding'] = 'KOI8-T';
                $return['use_iconv'] = true;
                break;

            // Ukrainian
            case 'koi8-u':
            case 'koi8u':
                $return['encoding'] = 'KOI8-U';
                $return['use_iconv'] = true;
                break;

            // Russian+Ukrainian
            case 'koi8-ru':
            case 'koi8ru':
                $return['encoding'] = 'KOI8-RU';
                $return['use_iconv'] = true;
                break;

            // Macintosh (Mac OS Classic)
            case 'macintosh':
                $return['encoding'] = 'Macintosh';
                $return['use_iconv'] = true;
                break;

            // MacArabic (Mac OS Classic)
            case 'macarabic':
                $return['encoding'] = 'MacArabic';
                $return['use_iconv'] = true;
                break;

            // MacCentralEurope (Mac OS Classic)
            case 'maccentraleurope':
                $return['encoding'] = 'MacCentralEurope';
                $return['use_iconv'] = true;
                break;

            // MacCroatian (Mac OS Classic)
            case 'maccroatian':
                $return['encoding'] = 'MacCroatian';
                $return['use_iconv'] = true;
                break;

            // MacCyrillic (Mac OS Classic)
            case 'maccyrillic':
                $return['encoding'] = 'MacCyrillic';
                $return['use_iconv'] = true;
                break;

            // MacGreek (Mac OS Classic)
            case 'macgreek':
                $return['encoding'] = 'MacGreek';
                $return['use_iconv'] = true;
                break;

            // MacHebrew (Mac OS Classic)
            case 'machebrew':
                $return['encoding'] = 'MacHebrew';
                $return['use_iconv'] = true;
                break;

            // MacIceland (Mac OS Classic)
            case 'maciceland':
                $return['encoding'] = 'MacIceland';
                $return['use_iconv'] = true;
                break;

            // MacRoman (Mac OS Classic)
            case 'macroman':
                $return['encoding'] = 'MacRoman';
                $return['use_iconv'] = true;
                break;

            // MacRomania (Mac OS Classic)
            case 'macromania':
                $return['encoding'] = 'MacRomania';
                $return['use_iconv'] = true;
                break;

            // MacThai (Mac OS Classic)
            case 'macthai':
                $return['encoding'] = 'MacThai';
                $return['use_iconv'] = true;
                break;

            // MacTurkish (Mac OS Classic)
            case 'macturkish':
                $return['encoding'] = 'MacTurkish';
                $return['use_iconv'] = true;
                break;

            // MacUkraine (Mac OS Classic)
            case 'macukraine':
                $return['encoding'] = 'MacUkraine';
                $return['use_iconv'] = true;
                break;

            // MuleLao-1
            case 'mulelao-1':
            case 'mulelao1':
                $return['encoding'] = 'MuleLao-1';
                $return['use_iconv'] = true;
                break;

            // Shift_JIS
            case 'shift_jis':
            case 'sjis':
            case '932':
                $return['encoding'] = 'Shift_JIS';
                $return['use_iconv'] = true;
                $return['use_mbstring'] = true;
                break;

            // Shift_JISX0213
            case 'shift-jisx0213':
            case 'shiftjisx0213':
                $return['encoding'] = 'Shift_JISX0213';
                $return['use_iconv'] = true;
                break;

            // SJIS-win
            case 'sjis-win':
            case 'sjiswin':
            case 'shift_jis-win':
                $return['encoding'] = 'SJIS-win';
                $return['use_iconv'] = true;
                $return['use_mbstring'] = true;
                break;

            // TCVN - Vietnamese
            case 'tcvn':
                $return['encoding'] = 'TCVN';
                $return['use_iconv'] = true;
                break;

            // TDS565 - Turkish
            case 'tds565':
                $return['encoding'] = 'TDS565';
                $return['use_iconv'] = true;
                break;

            // TIS-620 Thai
            case 'tis-620':
            case 'tis620':
                $return['encoding'] = 'TIS-620';
                $return['use_iconv'] = true;
                $return['use_mbstring'] = true;
                break;

            // UCS-2
            case 'ucs-2':
            case 'ucs2':
            case 'utf-16':
            case 'utf16':
                $return['encoding'] = 'UCS-2';
                $return['use_iconv'] = true;
                $return['use_mbstring'] = true;
                break;

            // UCS-2BE
            case 'ucs-2be':
            case 'ucs2be':
            case 'utf-16be':
            case 'utf16be':
                $return['encoding'] = 'UCS-2BE';
                $return['use_iconv'] = true;
                $return['use_mbstring'] = true;
                break;

            // UCS-2LE
            case 'ucs-2le':
            case 'ucs2le':
            case 'utf-16le':
            case 'utf16le':
                $return['encoding'] = 'UCS-2LE';
                $return['use_iconv'] = true;
                $return['use_mbstring'] = true;
                break;

            // UCS-2-INTERNAL
            case 'ucs-2-internal':
            case 'ucs2internal':
                $return['encoding'] = 'UCS-2-INTERNAL';
                $return['use_iconv'] = true;
                break;

            // UCS-4
            case 'ucs-4':
            case 'ucs4':
            case 'utf-32':
            case 'utf32':
                $return['encoding'] = 'UCS-4';
                $return['use_iconv'] = true;
                $return['use_mbstring'] = true;
                break;

            // UCS-4BE
            case 'ucs-4be':
            case 'ucs4be':
            case 'utf-32be':
            case 'utf32be':
                $return['encoding'] = 'UCS-4BE';
                $return['use_iconv'] = true;
                $return['use_mbstring'] = true;
                break;

            // UCS-4LE
            case 'ucs-4le':
            case 'ucs4le':
            case 'utf-32le':
            case 'utf32le':
                $return['encoding'] = 'UCS-4LE';
                $return['use_iconv'] = true;
                $return['use_mbstring'] = true;
                break;

            // UCS-4-INTERNAL
            case 'ucs-4-internal':
            case 'ucs4internal':
                $return['encoding'] = 'UCS-4-INTERNAL';
                $return['use_iconv'] = true;
                break;

            // UCS-16
            case 'ucs-16':
            case 'ucs16':
                $return['encoding'] = 'UCS-16';
                $return['use_iconv'] = true;
                $return['use_mbstring'] = true;
                break;

            // UCS-16BE
            case 'ucs-16be':
            case 'ucs16be':
                $return['encoding'] = 'UCS-16BE';
                $return['use_iconv'] = true;
                $return['use_mbstring'] = true;
                break;

            // UCS-16LE
            case 'ucs-16le':
            case 'ucs16le':
                $return['encoding'] = 'UCS-16LE';
                $return['use_iconv'] = true;
                $return['use_mbstring'] = true;
                break;

            // UCS-32
            case 'ucs-32':
            case 'ucs32':
                $return['encoding'] = 'UCS-32';
                $return['use_iconv'] = true;
                $return['use_mbstring'] = true;
                break;

            // UCS-32BE
            case 'ucs-32be':
            case 'ucs32be':
                $return['encoding'] = 'UCS-32BE';
                $return['use_iconv'] = true;
                $return['use_mbstring'] = true;
                break;

            // UCS-32LE
            case 'ucs-32le':
            case 'ucs32le':
                $return['encoding'] = 'UCS-32LE';
                $return['use_iconv'] = true;
                $return['use_mbstring'] = true;
                break;

            // UTF-7
            case 'utf-7':
            case 'utf7':
                $return['encoding'] = 'UTF-7';
                $return['use_iconv'] = true;
                $return['use_mbstring'] = true;
                break;

            // UTF7-IMAP
            case 'utf-7-imap':
            case 'utf7-imap':
            case 'utf7imap':
                $return['encoding'] = 'UTF7-IMAP';
                $return['use_mbstring'] = true;
                break;

            // VISCII - Vietnamese ASCII
            case 'viscii':
                $return['encoding'] = 'VISCII';
                $return['use_iconv'] = true;
                break;

            // Windows-specific Central & Eastern Europe
            case 'cp1250':
            case 'windows-1250':
            case 'win-1250':
            case '1250':
                $return['encoding'] = 'Windows-1250';
                $return['use_iconv'] = true;
                break;

            // Windows-specific Cyrillic
            case 'cp1251':
            case 'windows-1251':
            case 'win-1251':
            case '1251':
                $return['encoding'] = 'Windows-1251';
                $return['use_iconv'] = true;
                $return['use_mbstring'] = true;
                break;

            // Windows-specific Western Europe
            case 'cp1252':
            case 'windows-1252':
            case '1252':
                $return['encoding'] = 'Windows-1252';
                $return['use_iconv'] = true;
                $return['use_mbstring'] = true;
                break;

            // Windows-specific Greek
            case 'cp1253':
            case 'windows-1253':
            case '1253':
                $return['encoding'] = 'Windows-1253';
                $return['use_iconv'] = true;
                break;

            // Windows-specific Turkish
            case 'cp1254':
            case 'windows-1254':
            case '1254':
                $return['encoding'] = 'Windows-1254';
                $return['use_iconv'] = true;
                break;

            // Windows-specific Hebrew
            case 'cp1255':
            case 'windows-1255':
            case '1255':
                $return['encoding'] = 'Windows-1255';
                $return['use_iconv'] = true;
                break;

            // Windows-specific Arabic
            case 'cp1256':
            case 'windows-1256':
            case '1256':
                $return['encoding'] = 'Windows-1256';
                $return['use_iconv'] = true;
                break;

            // Windows-specific Baltic
            case 'cp1257':
            case 'windows-1257':
            case '1257':
                $return['encoding'] = 'Windows-1257';
                $return['use_iconv'] = true;
                break;

            // Windows-specific Vietnamese
            case 'cp1258':
            case 'windows-1258':
            case '1258':
                $return['encoding'] = 'Windows-1258';
                $return['use_iconv'] = true;
                break;

            // Default to UTF-8
            default:
                $return['encoding'] = 'UTF-8';
                $return['use_iconv'] = true;
                $return['use_mbstring'] = true;
                break;
        }

        // Then, return it.
        return $return;
    }

    public function get_curl_version()
    {
        $curl = 0;
        if (is_array(curl_version())) {
            $curl = curl_version();
            $curl = $curl['version'];
        } else {
            $curl = curl_version();
            $curl = explode(' ', $curl);
            $curl = explode('/', $curl[0]);
            $curl = $curl[1];
        }
        return $curl;
    }

    public function is_a_class($class1, $class2)
    {
        if (class_exists($class1)) {
            $classes = array(strtolower($class1));
            while ($class1 = get_parent_class($class1)) {
                $classes[] = strtolower($class1);
            }
            return in_array(strtolower($class2), $classes);
        } else {
            return false;
        }
    }
}

class SimplePie_Locator
{
    public $useragent;
    public $timeout;
    public $file;
    public $local;
    public $elsewhere;
    public $file_class = 'SimplePie_File';

    public function __construct(&$file, $timeout = 10, $useragent = null, $file_class = 'SimplePie_File')
    {
        if (!is_a($file, 'SimplePie_File')) {
            $this->file = new $this->file_class($file, $timeout, $useragent);
        } else {
            $this->file =& $file;
        }
        $this->file_class = $file_class;
        $this->useragent = $useragent;
        $this->timeout = $timeout;
    }


    public function find()
    {
        if ($this->is_feed($this->file)) {
            return $this->file->url;
        }

        $autodiscovery = $this->autodiscovery($this->file);
        if ($autodiscovery) {
            return $autodiscovery;
        }

        if ($this->get_links($this->file)) {
            if (!empty($this->local)) {
                $extension_local = $this->extension($this->local);
                if ($extension_local) {
                    return $extension_local;
                }

                $body_local = $this->body($this->local);
                if ($body_local) {
                    return $body_local;
                }
            }

            if (!empty($this->elsewhere)) {
                $extension_elsewhere = $this->extension($this->elsewhere);
                if ($extension_elsewhere) {
                    return $extension_elsewhere;
                }

                $body_elsewhere = $this->body($this->elsewhere);
                if ($body_elsewhere) {
                    return $body_elsewhere;
                }
            }
        }
        return false;
    }

    public function is_feed(&$file)
    {
        if (!is_a($file, 'SimplePie_File')) {
            if (isset($this)) {
                $file2 = new $this->file_class($file, $this->timeout, 5, null, $this->useragent);
            } else {
                $file2 = new $this->file_class($file);
            }
            $file2->body();
            $file2->close();
        } else {
            $file2 =& $file;
        }
        $body = preg_replace('/<\!-(.*)-\>/msiU', '', $file2->body());
        if (preg_match('/<(\w+\:)?rss/msiU', $body) || preg_match('/<(\w+\:)?RDF/mi', $body) || preg_match('/<(\w+\:)?feed/mi', $body)) {
            return true;
        }
        return false;
    }

    public function autodiscovery(&$file)
    {
        $links = SimplePie_Misc::get_element('link', $file->body());
        $done = array();
        foreach ($links as $link) {
            if (!empty($link['attribs']['TYPE']['data']) && !empty($link['attribs']['HREF']['data']) && !empty($link['attribs']['REL']['data'])) {
                $rel = preg_split('/\s+/', strtolower(trim($link['attribs']['REL']['data'])));
                $type = preg_match('/^(application\/rss\+xml|application\/atom\+xml|application\/rdf\+xml|application\/xml\+rss|application\/xml\+atom|application\/xml\+rdf|application\/xml|application\/x\.atom\+xml|text\/xml)(;|$)/msiU', trim($link['attribs']['TYPE']['data']));
                $href = SimplePie_Misc::absolutize_url(trim($link['attribs']['HREF']['data']), $this->file->url);
                if (!in_array($href, $done) && in_array('alternate', $rel) && $type) {
                    $feed = $this->is_feed($href);
                    if ($feed) {
                        return $href;
                    }
                }
                $done[] = $href;
            }
        }
        return false;
    }

    public function get_links(&$file)
    {
        $links = SimplePie_Misc::get_element('a', $file->body());
        foreach ($links as $link) {
            if (!empty($link['attribs']['HREF']['data'])) {
                $href = trim($link['attribs']['HREF']['data']);
                $parsed = SimplePie_Misc::parse_url($href);
                if (empty($parsed['scheme']) || $parsed['scheme'] != 'javascript') {
                    $current = SimplePie_Misc::parse_url($this->file->url);
                    if (empty($parsed['authority']) || $parsed['authority'] == $current['authority']) {
                        $this->local[] = SimplePie_Misc::absolutize_url($href, $this->file->url);
                    } else {
                        $this->elsewhere[] = SimplePie_Misc::absolutize_url($href, $this->file->url);
                    }
                }
            }
        }
        if (!empty($this->local)) {
            $this->local = array_unique($this->local);
        }
        if (!empty($this->elsewhere)) {
            $this->elsewhere = array_unique($this->elsewhere);
        }
        if (!empty($this->local) || !empty($this->elsewhere)) {
            return true;
        }
        return false;
    }

    public function extension(&$array)
    {
        foreach ($array as $key => $value) {
            $value = SimplePie_Misc::absolutize_url($value, $this->file->url);
            if (in_array(strrchr($value, '.'), array('.rss', '.rdf', '.atom', '.xml'))) {
                if ($this->is_feed($value)) {
                    return $value;
                } else {
                    unset($array[$key]);
                }
            }
        }
        return false;
    }

    public function body(&$array)
    {
        foreach ($array as $key => $value) {
            $value = SimplePie_Misc::absolutize_url($value, $this->file->url);
            if (preg_match('/(rss|rdf|atom|xml)/i', $value)) {
                if ($this->is_feed($value)) {
                    return $value;
                } else {
                    unset($array[$key]);
                }
            }
        }
        return false;
    }
}

class SimplePie_Parser
{
    public $encoding;
    public $data;
    public $namespaces = array('xml' => 'HTTP://WWW.W3.ORG/XML/1998/NAMESPACE', 'atom' => 'ATOM', 'rss2' => 'RSS', 'rdf' => 'RDF', 'rss1' => 'RSS', 'dc' => 'DC', 'xhtml' => 'XHTML', 'content' => 'CONTENT');
    public $xml;
    public $error_code;
    public $error_string;
    public $current_line;
    public $current_column;
    public $current_byte;
    public $tag_name;
    public $inside_item;
    public $item_number = 0;
    public $inside_channel;
    public $author_number= 0;
    public $category_number = 0;
    public $enclosure_number = 0;
    public $link_number = 0;
    public $item_link_number = 0;
    public $inside_image;
    public $attribs;
    public $is_first;
    public $inside_author;
    public $depth_inside_item = 0;

    public function __construct($data, $encoding, $return_xml = false)
    {
        $this->encoding = $encoding;

        // Strip BOM:
        // UTF-32 Big Endian BOM
        if (strpos($data, sprintf('%c%c%c%c', 0x00, 0x00, 0xFE, 0xFF)) === 0) {
            $data = substr($data, 4);
        }
        // UTF-32 Little Endian BOM
        elseif (strpos($data, sprintf('%c%c%c%c', 0xFF, 0xFE, 0x00, 0x00)) === 0) {
            $data = substr($data, 4);
        }
        // UTF-16 Big Endian BOM
        elseif (strpos($data, sprintf('%c%c', 0xFE, 0xFF)) === 0) {
            $data = substr($data, 2);
        }
        // UTF-16 Little Endian BOM
        elseif (strpos($data, sprintf('%c%c', 0xFF, 0xFE)) === 0) {
            $data = substr($data, 2);
        }
        // UTF-8 BOM
        elseif (strpos($data, sprintf('%c%c%c', 0xEF, 0xBB, 0xBF)) === 0) {
            $data = substr($data, 3);
        }

        // Make sure the XML prolog is sane and has the correct encoding
        if (preg_match('/^<\?xml(.*)?>/msiU', $data, $prolog)) {
            $data = substr_replace($data, '', 0, strlen($prolog[0]));
        }
        $data = "<?xml version='1.0' encoding='$encoding'?>\n" . $data;

        // Put some data into CDATA blocks
        // If we're RSS
        if ((stristr($data, '<rss') || preg_match('/<([a-z0-9]+\:)?RDF/mi', $data)) && (preg_match('/<([a-z0-9]+\:)?channel/mi', $data) || preg_match('/<([a-z0-9]+\:)?item/mi', $data))) {
            $sp_elements = array(
                'author',
                'category',
                'copyright',
                'description',
                'docs',
                'generator',
                'guid',
                'language',
                'lastBuildDate',
                'link',
                'managingEditor',
                'pubDate',
                'title',
                'url',
                'webMaster',
            );
        }
        // Or if we're Atom
        else {
            $sp_elements = array(
                'content',
                'copyright',
                'name',
                'subtitle',
                'summary',
                'tagline',
                'title',
            );
        }
        foreach ($sp_elements as $full) {
            $data = preg_replace_callback("/<($full)((\s*((\w+:)?\w+)\s*=\s*(\"([^\"]*)\"|'([^']*)'))*)\s*(\/>|>(.*)<\/$full>)/msiU", array(&$this, 'add_cdata'), $data);
        }
        foreach ($sp_elements as $full) {
            // Deal with CDATA within CDATA (this can be caused by us inserting CDATA above)
            $data = preg_replace_callback("/<($full)((\s*((\w+:)?\w+)\s*=\s*(\"([^\"]*)\"|'([^']*)'))*)\s*(\/>|><!\[CDATA\[(.*)\]\]><\/$full>)/msiU", array(&$this, 'cdata_in_cdata'), $data);
        }

        // Return the XML, if so desired
        if ($return_xml) {
            $this->data =& $data;
            return;
        }

        // Create the parser
        $this->xml = xml_parser_create_ns($encoding);
        xml_parser_set_option($this->xml, XML_OPTION_SKIP_WHITE, 1);
        xml_set_object($this->xml, $this);
        xml_set_character_data_handler($this->xml, 'data_handler');
        xml_set_element_handler($this->xml, 'start_handler', 'end_handler');
        xml_set_start_namespace_decl_handler($this->xml, 'start_name_space');
        xml_set_end_namespace_decl_handler($this->xml, 'end_name_space');

        // Parse!
        if (!xml_parse($this->xml, $data)) {
            $this->data = null;
            $this->error_code = xml_get_error_code($this->xml);
            $this->error_string = xml_error_string($this->error_code);
        }
        $this->current_line = xml_get_current_line_number($this->xml);
        $this->current_column = xml_get_current_column_number($this->xml);
        $this->current_byte = xml_get_current_byte_index($this->xml);
        xml_parser_free($this->xml);
        return;
    }

    public function add_cdata($match)
    {
        if (isset($match[10])) {
            return "<$match[1]$match[2]><![CDATA[$match[10]]]></$match[1]>";
        }
        return $match[0];
    }

    public function cdata_in_cdata($match)
    {
        if (isset($match[10])) {
            $match[10] = preg_replace_callback('/<!\[CDATA\[(.*)\]\]>/msiU', array(&$this, 'real_cdata_in_cdata'), $match[10]);
            return "<$match[1]$match[2]><![CDATA[$match[10]]]></$match[1]>";
        }
        return $match[0];
    }

    public function real_cdata_in_cdata($match)
    {
        return htmlspecialchars($match[1], ENT_NOQUOTES);
    }

    public function do_add_content(&$array, $data)
    {
        if ($this->is_first) {
            $array['data'] = $data;
            $array['attribs'] = $this->attribs;
        } else {
            $array['data'] .= $data;
        }
    }

    public function start_handler($parser, $name, $attribs)
    {
        $this->tag_name = $name;
        $this->attribs = $attribs;
        $this->is_first = true;

        if ($this->inside_item) {
            $this->depth_inside_item++;
        }

        switch ($this->tag_name) {
            case 'ITEM':
            case $this->namespaces['rss2'] . ':ITEM':
            case $this->namespaces['rss1'] . ':ITEM':
            case 'ENTRY':
            case $this->namespaces['atom'] . ':ENTRY':
                $this->inside_item = true;
                $this->do_add_content($this->data['items'][$this->item_number], '');
                break;

            case 'CHANNEL':
            case $this->namespaces['rss2'] . ':CHANNEL':
            case $this->namespaces['rss1'] . ':CHANNEL':
                $this->inside_channel = true;
                break;

            case 'RSS':
            case $this->namespaces['rss2'] . ':RSS':
                $this->data['feedinfo']['type'] = 'RSS';
                $this->do_add_content($this->data['feeddata'], '');
                if (!empty($attribs['VERSION'])) {
                    $this->data['feedinfo']['version'] = trim($attribs['VERSION']);
                }
                break;

            case $this->namespaces['rdf'] . ':RDF':
                $this->data['feedinfo']['type'] = 'RSS';
                $this->do_add_content($this->data['feeddata'], '');
                $this->data['feedinfo']['version'] = 1;
                break;

            case 'FEED':
            case $this->namespaces['atom'] . ':FEED':
                $this->data['feedinfo']['type'] = 'Atom';
                $this->do_add_content($this->data['feeddata'], '');
                if (!empty($attribs['VERSION'])) {
                    $this->data['feedinfo']['version'] = trim($attribs['VERSION']);
                }
                break;

            case 'IMAGE':
            case $this->namespaces['rss2'] . ':IMAGE':
            case $this->namespaces['rss1'] . ':IMAGE':
                if ($this->inside_channel) {
                    $this->inside_image = true;
                }
                break;
        }

        if (!empty($this->data['feedinfo']['type']) && $this->data['feedinfo']['type'] == 'Atom' && ($this->tag_name == 'AUTHOR' || $this->tag_name == $this->namespaces['atom'] . ':AUTHOR')) {
            $this->inside_author = true;
        }
        $this->data_handler($this->xml, '');
    }

    public function data_handler($parser, $data)
    {
        if ($this->inside_item && $this->depth_inside_item == 1) {
            switch ($this->tag_name) {
                case 'TITLE':
                case $this->namespaces['rss1'] . ':TITLE':
                case $this->namespaces['rss2'] . ':TITLE':
                case $this->namespaces['atom'] . ':TITLE':
                    $this->do_add_content($this->data['items'][$this->item_number]['title'], $data);
                    break;

                case $this->namespaces['dc'] . ':TITLE':
                    $this->do_add_content($this->data['items'][$this->item_number]['dc:title'], $data);
                    break;

                case 'CONTENT':
                case $this->namespaces['atom'] . ':CONTENT':
                    $this->do_add_content($this->data['items'][$this->item_number]['content'], $data);
                    break;

                case $this->namespaces['content'] . ':ENCODED':
                    $this->do_add_content($this->data['items'][$this->item_number]['encoded'], $data);
                    break;

                case 'SUMMARY':
                case $this->namespaces['atom'] . ':SUMMARY':
                    $this->do_add_content($this->data['items'][$this->item_number]['summary'], $data);
                    break;

                case 'LONGDESC':
                    $this->do_add_content($this->data['items'][$this->item_number]['longdesc'], $data);
                    break;

                case 'DESCRIPTION':
                case $this->namespaces['rss1'] . ':DESCRIPTION':
                case $this->namespaces['rss2'] . ':DESCRIPTION':
                    $this->do_add_content($this->data['items'][$this->item_number]['description'], $data);
                    break;

                case $this->namespaces['dc'] . ':DESCRIPTION':
                    $this->do_add_content($this->data['items'][$this->item_number]['dc:description'], $data);
                    break;

                case 'LINK':
                case $this->namespaces['rss1'] . ':LINK':
                case $this->namespaces['rss2'] . ':LINK':
                case $this->namespaces['atom'] . ':LINK':
                    $this->do_add_content($this->data['items'][$this->item_number]['link'][$this->item_link_number], $data);
                    break;

                case 'ENCLOSURE':
                case $this->namespaces['rss1'] . ':ENCLOSURE':
                case $this->namespaces['rss2'] . ':ENCLOSURE':
                case $this->namespaces['atom'] . ':ENCLOSURE':
                    $this->do_add_content($this->data['items'][$this->item_number]['enclosure'][$this->enclosure_number], $data);
                    break;

                case 'GUID':
                case $this->namespaces['rss1'] . ':GUID':
                case $this->namespaces['rss2'] . ':GUID':
                    $this->do_add_content($this->data['items'][$this->item_number]['guid'], $data);
                    break;

                case 'ID':
                case $this->namespaces['atom'] . ':ID':
                    $this->do_add_content($this->data['items'][$this->item_number]['id'], $data);
                    break;

                case 'PUBDATE':
                case $this->namespaces['rss1'] . ':PUBDATE':
                case $this->namespaces['rss2'] . ':PUBDATE':
                    $this->do_add_content($this->data['items'][$this->item_number]['pubdate'], $data);
                    break;

                case $this->namespaces['dc'] . ':DATE':
                    $this->do_add_content($this->data['items'][$this->item_number]['dc:date'], $data);
                    break;

                case 'ISSUED':
                case $this->namespaces['atom'] . ':ISSUED':
                    $this->do_add_content($this->data['items'][$this->item_number]['issued'], $data);
                    break;

                case 'PUBLISHED':
                case $this->namespaces['atom'] . ':PUBLISHED':
                    $this->do_add_content($this->data['items'][$this->item_number]['published'], $data);
                    break;

                case 'MODIFIED':
                case $this->namespaces['atom'] . ':MODIFIED':
                    $this->do_add_content($this->data['items'][$this->item_number]['modified'], $data);
                    break;

                case 'UPDATED':
                case $this->namespaces['atom'] . ':UPDATED':
                    $this->do_add_content($this->data['items'][$this->item_number]['updated'], $data);
                    break;

                case 'CATEGORY':
                case $this->namespaces['rss1'] . ':CATEGORY':
                case $this->namespaces['rss2'] . ':CATEGORY':
                case $this->namespaces['atom'] . ':CATEGORY':
                    $this->do_add_content($this->data['items'][$this->item_number]['category'][$this->category_number], $data);
                    break;

                case $this->namespaces['dc'] . ':SUBJECT':
                    $this->do_add_content($this->data['items'][$this->item_number]['subject'][$this->category_number], $data);
                    break;

                case $this->namespaces['dc'] . ':CREATOR':
                    $this->do_add_content($this->data['items'][$this->item_number]['creator'][$this->author_number], $data);
                    break;

                case 'AUTHOR':
                case $this->namespaces['rss1'] . ':AUTHOR':
                case $this->namespaces['rss2'] . ':AUTHOR':
                    $this->do_add_content($this->data['items'][$this->item_number]['author'][$this->author_number]['rss'], $data);
                    break;
            }

            if ($this->inside_author) {
                switch ($this->tag_name) {
                    case 'NAME':
                    case $this->namespaces['atom'] . ':NAME':
                        $this->do_add_content($this->data['items'][$this->item_number]['author'][$this->author_number]['name'], $data);
                        break;

                    case 'URL':
                    case $this->namespaces['atom'] . ':URL':
                        $this->do_add_content($this->data['items'][$this->item_number]['author'][$this->author_number]['url'], $data);
                        break;

                    case 'URI':
                    case $this->namespaces['atom'] . ':URI':
                        $this->do_add_content($this->data['items'][$this->item_number]['author'][$this->author_number]['uri'], $data);
                        break;

                    case 'HOMEPAGE':
                    case $this->namespaces['atom'] . ':HOMEPAGE':
                        $this->do_add_content($this->data['items'][$this->item_number]['author'][$this->author_number]['homepage'], $data);
                        break;

                    case 'EMAIL':
                    case $this->namespaces['atom'] . ':EMAIL':
                        $this->do_add_content($this->data['items'][$this->item_number]['author'][$this->author_number]['email'], $data);
                        break;
                }
            }
        } elseif (($this->inside_channel && !$this->inside_image) || (isset($this->data['feedinfo']['type']) && $this->data['feedinfo']['type'] == 'Atom')) {
            switch ($this->tag_name) {
                case 'TITLE':
                case $this->namespaces['rss1'] . ':TITLE':
                case $this->namespaces['rss2'] . ':TITLE':
                case $this->namespaces['atom'] . ':TITLE':
                    $this->do_add_content($this->data['info']['title'], $data);
                    break;

                case 'LINK':
                case $this->namespaces['rss1'] . ':LINK':
                case $this->namespaces['rss2'] . ':LINK':
                case $this->namespaces['atom'] . ':LINK':
                    $this->do_add_content($this->data['info']['link'][$this->link_number], $data);
                    break;

                case 'DESCRIPTION':
                case $this->namespaces['rss1'] . ':DESCRIPTION':
                case $this->namespaces['rss2'] . ':DESCRIPTION':
                    $this->do_add_content($this->data['info']['description'], $data);
                    break;

                case $this->namespaces['dc'] . ':DESCRIPTION':
                    $this->do_add_content($this->data['info']['dc:description'], $data);
                    break;

                case 'TAGLINE':
                case $this->namespaces['atom'] . ':TAGLINE':
                    $this->do_add_content($this->data['info']['tagline'], $data);
                    break;

                case 'SUBTITLE':
                case $this->namespaces['atom'] . ':SUBTITLE':
                    $this->do_add_content($this->data['info']['subtitle'], $data);
                    break;

                case 'COPYRIGHT':
                case $this->namespaces['rss1'] . ':COPYRIGHT':
                case $this->namespaces['rss2'] . ':COPYRIGHT':
                case $this->namespaces['atom'] . ':COPYRIGHT':
                    $this->do_add_content($this->data['info']['copyright'], $data);
                    break;

                case 'LANGUAGE':
                case $this->namespaces['rss1'] . ':LANGUAGE':
                case $this->namespaces['rss2'] . ':LANGUAGE':
                    $this->do_add_content($this->data['info']['language'], $data);
                    break;

                case 'LOGO':
                case $this->namespaces['atom'] . ':LOGO':
                    $this->do_add_content($this->data['info']['logo'], $data);
                    break;

            }
        } elseif ($this->inside_channel && $this->inside_image) {
            switch ($this->tag_name) {
                case 'TITLE':
                case $this->namespaces['rss1'] . ':TITLE':
                case $this->namespaces['rss2'] . ':TITLE':
                    $this->do_add_content($this->data['info']['image']['title'], $data);
                    break;

                case 'URL':
                case $this->namespaces['rss1'] . ':URL':
                case $this->namespaces['rss2'] . ':URL':
                    $this->do_add_content($this->data['info']['image']['url'], $data);
                    break;

                case 'LINK':
                case $this->namespaces['rss1'] . ':LINK':
                case $this->namespaces['rss2'] . ':LINK':
                    $this->do_add_content($this->data['info']['image']['link'], $data);
                    break;

                case 'WIDTH':
                case $this->namespaces['rss1'] . ':WIDTH':
                case $this->namespaces['rss2'] . ':WIDTH':
                    $this->do_add_content($this->data['info']['image']['width'], $data);
                    break;

                case 'HEIGHT':
                case $this->namespaces['rss1'] . ':HEIGHT':
                case $this->namespaces['rss2'] . ':HEIGHT':
                    $this->do_add_content($this->data['info']['image']['height'], $data);
                    break;
            }
        }
        $this->is_first = false;
    }

    public function end_handler($parser, $name)
    {
        $this->tag_name = '';
        switch ($name) {
            case 'ITEM':
            case $this->namespaces['rss1'] . ':ITEM':
            case $this->namespaces['rss2'] . ':ITEM':
            case 'ENTRY':
            case $this->namespaces['atom'] . ':ENTRY':
                $this->inside_item = false;
                $this->item_number++;
                $this->author_number = 0;
                $this->category_number = 0;
                $this->enclosure_number = 0;
                $this->item_link_number = 0;
                break;

            case 'CHANNEL':
            case $this->namespaces['rss1'] . ':CHANNEL':
            case $this->namespaces['rss2'] . ':CHANNEL':
                $this->inside_channel = false;
                break;

            case 'IMAGE':
            case $this->namespaces['rss1'] . ':IMAGE':
            case $this->namespaces['rss2'] . ':IMAGE':
                $this->inside_image = false;
                break;

            case 'AUTHOR':
            case $this->namespaces['rss1'] . ':AUTHOR':
            case $this->namespaces['rss2'] . ':AUTHOR':
            case $this->namespaces['atom'] . ':AUTHOR':
                $this->author_number++;
                $this->inside_author = false;
                break;

            case 'CATEGORY':
            case $this->namespaces['rss1'] . ':CATEGORY':
            case $this->namespaces['rss2'] . ':CATEGORY':
            case $this->namespaces['atom'] . ':CATEGORY':
            case $this->namespaces['dc'] . ':SUBJECT':
                $this->category_number++;
                break;

            case 'ENCLOSURE':
            case $this->namespaces['rss1'] . ':ENCLOSURE':
            case $this->namespaces['rss2'] . ':ENCLOSURE':
                $this->enclosure_number++;
                break;

            case 'LINK':
            case $this->namespaces['rss1'] . ':LINK':
            case $this->namespaces['rss2'] . ':LINK':
            case $this->namespaces['atom'] . ':LINK':
                if ($this->inside_item) {
                    $this->item_link_number++;
                } else {
                    $this->link_number++;
                }
                break;
        }
        if ($this->inside_item) {
            $this->depth_inside_item--;
        }
    }

    public function start_name_space($parser, $prefix, $uri = null)
    {
        $prefix = strtoupper($prefix);
        $uri = strtoupper($uri);
        if ($prefix == 'ATOM' || $uri == 'HTTP://WWW.W3.ORG/2005/ATOM' || $uri == 'HTTP://PURL.ORG/ATOM/NS#') {
            $this->namespaces['atom'] = $uri;
        } elseif ($prefix == 'RSS2' || $uri == 'HTTP://BACKEND.USERLAND.COM/RSS2') {
            $this->namespaces['rss2'] = $uri;
        } elseif ($prefix == 'RDF' || $uri == 'HTTP://WWW.W3.ORG/1999/02/22-RDF-SYNTAX-NS#') {
            $this->namespaces['rdf'] = $uri;
        } elseif ($prefix == 'RSS' || $uri == 'HTTP://PURL.ORG/RSS/1.0/' || $uri == 'HTTP://MY.NETSCAPE.COM/RDF/SIMPLE/0.9/') {
            $this->namespaces['rss1'] = $uri;
        } elseif ($prefix == 'DC' || $uri == 'HTTP://PURL.ORG/DC/ELEMENTS/1.1/') {
            $this->namespaces['dc'] = $uri;
        } elseif ($prefix == 'XHTML' || $uri == 'HTTP://WWW.W3.ORG/1999/XHTML') {
            $this->namespaces['xhtml'] = $uri;
            $this->xhtml_prefix = $prefix;
        } elseif ($prefix == 'CONTENT' || $uri == 'HTTP://PURL.ORG/RSS/1.0/MODULES/CONTENT/') {
            $this->namespaces['content'] = $uri;
        }
    }

    public function end_name_space($parser, $prefix)
    {
        if ($key = array_search(strtoupper($prefix), $this->namespaces)) {
            if ($key == 'atom') {
                $this->namespaces['atom'] = 'ATOM';
            } elseif ($key == 'rss2') {
                $this->namespaces['rss2'] = 'RSS';
            } elseif ($key == 'rdf') {
                $this->namespaces['rdf'] = 'RDF';
            } elseif ($key == 'rss1') {
                $this->namespaces['rss1'] = 'RSS';
            } elseif ($key == 'dc') {
                $this->namespaces['dc'] = 'DC';
            } elseif ($key == 'xhtml') {
                $this->namespaces['xhtml'] = 'XHTML';
                $this->xhtml_prefix = 'XHTML';
            } elseif ($key == 'content') {
                $this->namespaces['content'] = 'CONTENT';
            }
        }
    }
}

class SimplePie_Sanitize
{
    // Private vars
    public $feedinfo;
    public $info;
    public $items;
    public $feed_xmlbase;
    public $item_xmlbase;
    public $attribs;
    public $cached_entities;
    public $cache_convert_entities;

    // Options
    public $remove_div = true;
    public $strip_ads = false;
    public $replace_headers = false;
    public $bypass_image_hotlink = false;
    public $bypass_image_hotlink_page = false;
    public $strip_htmltags = array('base', 'blink', 'body', 'doctype', 'embed', 'font', 'form', 'frame', 'frameset', 'html', 'iframe', 'input', 'marquee', 'meta', 'noscript', 'object', 'param', 'script', 'style');
    public $encode_instead_of_strip = false;
    public $strip_attributes = array('bgsound', 'class', 'expr', 'id', 'style', 'onclick', 'onerror', 'onfinish', 'onmouseover', 'onmouseout', 'onfocus', 'onblur');
    public $input_encoding = 'UTF-8';
    public $output_encoding = 'UTF-8';
    public $item_class = 'SimplePie_Item';
    public $author_class = 'SimplePie_Author';
    public $enclosure_class = 'SimplePie_Enclosure';

    public function remove_div($enable = true)
    {
        $this->remove_div = (bool) $enable;
    }

    public function strip_ads($enable = false)
    {
        $this->strip_ads = (bool) $enable;
    }

    public function replace_headers($enable = false)
    {
        $this->enable_headers = (bool) $enable;
    }

    public function bypass_image_hotlink($get = false)
    {
        if ($get) {
            $this->bypass_image_hotlink = (string) $get;
        } else {
            $this->bypass_image_hotlink = false;
        }
    }

    public function bypass_image_hotlink_page($page = false)
    {
        if ($page) {
            $this->bypass_image_hotlink_page = (string) $page;
        } else {
            $this->bypass_image_hotlink_page = false;
        }
    }

    public function strip_htmltags($tags = array('base', 'blink', 'body', 'doctype', 'embed', 'font', 'form', 'frame', 'frameset', 'html', 'iframe', 'input', 'marquee', 'meta', 'noscript', 'object', 'param', 'script', 'style'))
    {
        if ($tags) {
            if (is_array($tags)) {
                $this->strip_htmltags = $tags;
            } else {
                $this->strip_htmltags = explode(',', $tags);
            }
        } else {
            $this->strip_htmltags = false;
        }
    }

    public function encode_instead_of_strip($enable = false)
    {
        $this->encode_instead_of_strip = (bool) $enable;
    }

    public function strip_attributes($attribs = array('bgsound', 'class', 'expr', 'id', 'style', 'onclick', 'onerror', 'onfinish', 'onmouseover', 'onmouseout', 'onfocus', 'onblur'))
    {
        if ($attribs) {
            if (is_array($attribs)) {
                $this->strip_attributes = $attribs;
            } else {
                $this->strip_attributes = explode(',', $attribs);
            }
        } else {
            $this->strip_attributes = false;
        }
    }

    public function input_encoding($encoding = 'UTF-8')
    {
        $this->input_encoding = (string) $encoding;
    }

    public function output_encoding($encoding = 'UTF-8')
    {
        $this->output_encoding = (string) $encoding;
    }

    public function set_item_class($class = 'SimplePie_Item')
    {
        if (SimplePie_Misc::is_a_class($class, 'SimplePie_Item')) {
            $this->item_class = $class;
            return true;
        }
        return false;
    }

    public function set_author_class($class = 'SimplePie_Author')
    {
        if (SimplePie_Misc::is_a_class($class, 'SimplePie_Author')) {
            $this->author_class = $class;
            return true;
        }
        return false;
    }

    public function set_enclosure_class($class = 'SimplePie_Enclosure')
    {
        if (SimplePie_Misc::is_a_class($class, 'SimplePie_Enclosure')) {
            $this->enclosure_class = $class;
            return true;
        }
        return false;
    }

    public function parse_data_array(&$data, $url)
    {
        // Feed Info (Type and Version)
        if (!empty($data['feedinfo']['type'])) {
            $this->feedinfo = $data['feedinfo'];
        }

        // Feed level xml:base
        if (!empty($data['feeddata']['attribs']['XML:BASE'])) {
            $this->feed_xmlbase = $data['feeddata']['attribs']['XML:BASE'];
        } elseif (!empty($data['feeddata']['attribs']['HTTP://WWW.W3.ORG/XML/1998/NAMESPACE:BASE'])) {
            $this->feed_xmlbase = $data['feeddata']['attribs']['HTTP://WWW.W3.ORG/XML/1998/NAMESPACE:BASE'];
        }
        // FeedBurner feeds use alternate link
        elseif (strpos($url, 'http://feeds.feedburner.com/') !== 0) {
            $this->feed_xmlbase = SimplePie_Misc::parse_url($url);
            if (empty($this->feed_xmlbase['authority'])) {
                $this->feed_xmlbase = preg_replace('/^' . preg_quote(realpath($_SERVER['DOCUMENT_ROOT']), '/') . '/', '', realpath($url));
            } else {
                $this->feed_xmlbase = $url;
            }
        }


        // Feed link(s)
        if (!empty($data['info']['link'])) {
            foreach ($data['info']['link'] as $link) {
                if (empty($link['attribs']['REL'])) {
                    $rel = 'alternate';
                } else {
                    $rel = strtolower($link['attribs']['REL']);
                }
                if ($rel == 'enclosure') {
                    $href = null;
                    $type = null;
                    $length = null;
                    if (!empty($link['data'])) {
                        $href = $this->sanitize($link['data'], $link['attribs'], true);
                    } elseif (!empty($link['attribs']['HREF'])) {
                        $href = $this->sanitize($link['attribs']['HREF'], $link['attribs'], true);
                    }
                    if (!empty($link['attribs']['TYPE'])) {
                        $type = $this->sanitize($link['attribs']['TYPE'], $link['attribs']);
                    }
                    if (!empty($link['attribs']['LENGTH'])) {
                        $length = $this->sanitize($link['attribs']['LENGTH'], $link['attribs']);
                    }
                    $this->info['link']['enclosure'][] = new $this->enclosure_class($href, $type, $length);
                } else {
                    if (!empty($link['data'])) {
                        $this->info['link'][$rel][] = $this->sanitize($link['data'], $link['attribs'], true);
                    } elseif (!empty($link['attribs']['HREF'])) {
                        $this->info['link'][$rel][] = $this->sanitize($link['attribs']['HREF'], $link['attribs'], true);
                    }
                }
            }
        }

        // Use the first alternate link if we don't have any feed xml:base
        if (empty($this->feed_xmlbase) && !empty($this->info['link']['alternate'][0])) {
            $this->feed_xmlbase = $this->info['link']['alternate'][0];
        }

        // Feed Title
        if (!empty($data['info']['title']['data'])) {
            $this->info['title'] = $this->sanitize($data['info']['title']['data'], $data['info']['title']['attribs']);
        }

        // Feed Descriptions
        if (!empty($data['info']['description']['data'])) {
            $this->info['description'] = $this->sanitize($data['info']['description']['data'], $data['info']['description']['attribs'], false, true);
        }
        if (!empty($data['info']['dc:description']['data'])) {
            $this->info['dc:description'] = $this->sanitize($data['info']['dc:description']['data'], $data['info']['dc:description']['attribs']);
        }
        if (!empty($data['info']['tagline']['data'])) {
            $this->info['tagline'] = $this->sanitize($data['info']['tagline']['data'], $data['info']['tagline']['attribs']);
        }
        if (!empty($data['info']['subtitle']['data'])) {
            $this->info['subtitle'] = $this->sanitize($data['info']['subtitle']['data'], $data['info']['subtitle']['attribs']);
        }

        // Feed Language
        if (!empty($data['info']['language']['data'])) {
            $this->info['language'] = $this->sanitize($data['info']['language']['data'], $data['info']['language']['attribs']);
        }
        if (!empty($data['feeddata']['attribs']['XML:LANG'])) {
            $this->info['xml:lang'] = $this->sanitize($data['feeddata']['attribs']['XML:LANG'], null);
        } elseif (!empty($data['feeddata']['attribs']['HTTP://WWW.W3.ORG/XML/1998/NAMESPACE:LANG'])) {
            $this->info['xml:lang'] = $this->sanitize($data['feeddata']['attribs']['HTTP://WWW.W3.ORG/XML/1998/NAMESPACE:LANG'], null);
        }

        // Feed Copyright
        if (!empty($data['info']['copyright']['data'])) {
            $this->info['copyright'] = $this->sanitize($data['info']['copyright']['data'], $data['info']['copyright']['attribs']);
        }

        // Feed Image
        if (!empty($data['info']['image']['title']['data'])) {
            $this->info['image']['title'] = $this->sanitize($data['info']['image']['title']['data'], $data['info']['image']['title']['attribs']);
        }
        if (!empty($data['info']['image']['url']['data'])) {
            $this->info['image']['url'] = $this->sanitize($data['info']['image']['url']['data'], $data['info']['image']['url']['attribs'], true);
        }
        if (!empty($data['info']['logo']['data'])) {
            $this->info['image']['logo'] = $this->sanitize($data['info']['logo']['data'], $data['info']['logo']['attribs'], true);
        }
        if (!empty($data['info']['image']['link']['data'])) {
            $this->info['image']['link'] = $this->sanitize($data['info']['image']['link']['data'], $data['info']['image']['link']['attribs'], true);
        }
        if (!empty($data['info']['image']['width']['data'])) {
            $this->info['image']['width'] = $this->sanitize($data['info']['image']['width']['data'], $data['info']['image']['width']['attribs']);
        }
        if (!empty($data['info']['image']['height']['data'])) {
            $this->info['image']['height'] = $this->sanitize($data['info']['image']['height']['data'], $data['info']['image']['height']['attribs']);
        }

        // Items
        if (!empty($data['items'])) {
            foreach ($data['items'] as $key => $item) {
                $newitem = null;

                // Item level xml:base
                if (!empty($item['attribs']['XML:BASE'])) {
                    $this->item_xmlbase = SimplePie_Misc::absolutize_url($item['attribs']['XML:BASE'], $this->feed_xmlbase);
                } elseif (!empty($item['attribs']['HTTP://WWW.W3.ORG/XML/1998/NAMESPACE:BASE'])) {
                    $this->item_xmlbase = SimplePie_Misc::absolutize_url($item['attribs']['HTTP://WWW.W3.ORG/XML/1998/NAMESPACE:BASE'], $this->feed_xmlbase);
                } else {
                    $this->item_xmlbase = null;
                }

                // Title
                if (!empty($item['title']['data'])) {
                    $newitem['title'] = $this->sanitize($item['title']['data'], $item['title']['attribs']);
                }
                if (!empty($item['dc:title']['data'])) {
                    $newitem['dc:title'] = $this->sanitize($item['dc:title']['data'], $item['dc:title']['attribs']);
                }

                // Description
                if (!empty($item['content']['data'])) {
                    $newitem['content'] = $this->sanitize($item['content']['data'], $item['content']['attribs']);
                }
                if (!empty($item['encoded']['data'])) {
                    $newitem['encoded'] = $this->sanitize($item['encoded']['data'], $item['encoded']['attribs']);
                }
                if (!empty($item['summary']['data'])) {
                    $newitem['summary'] = $this->sanitize($item['summary']['data'], $item['summary']['attribs']);
                }
                if (!empty($item['description']['data'])) {
                    $newitem['description'] = $this->sanitize($item['description']['data'], $item['description']['attribs'], false, true);
                }
                if (!empty($item['dc:description']['data'])) {
                    $newitem['dc:description'] = $this->sanitize($item['dc:description']['data'], $item['dc:description']['attribs']);
                }
                if (!empty($item['longdesc']['data'])) {
                    $newitem['longdesc'] = $this->sanitize($item['longdesc']['data'], $item['longdesc']['attribs']);
                }

                // Link(s)
                if (!empty($item['link'])) {
                    foreach ($item['link'] as $link) {
                        if (empty($link['attribs']['REL'])) {
                            $rel = 'alternate';
                        } else {
                            $rel = strtolower($link['attribs']['REL']);
                        }
                        if ($rel == 'enclosure') {
                            $href = null;
                            $type = null;
                            $length = null;
                            if (!empty($link['data'])) {
                                $href = $this->sanitize($link['data'], $link['attribs'], true);
                            } elseif (!empty($link['attribs']['HREF'])) {
                                $href = $this->sanitize($link['attribs']['HREF'], $link['attribs'], true);
                            }
                            if (!empty($link['attribs']['TYPE'])) {
                                $type = $this->sanitize($link['attribs']['TYPE'], $link['attribs']);
                            }
                            if (!empty($link['attribs']['LENGTH'])) {
                                $length = $this->sanitize($link['attribs']['LENGTH'], $link['attribs']);
                            }
                            if (!empty($href)) {
                                $newitem['link'][$rel][] = new $this->enclosure_class($href, $type, $length);
                            }
                        } else {
                            if (!empty($link['data'])) {
                                $newitem['link'][$rel][] = $this->sanitize($link['data'], $link['attribs'], true);
                            } elseif (!empty($link['attribs']['HREF'])) {
                                $newitem['link'][$rel][] = $this->sanitize($link['attribs']['HREF'], $link['attribs'], true);
                            }
                        }
                    }
                }

                // Enclosure(s)
                if (!empty($item['enclosure'])) {
                    foreach ($item['enclosure'] as $enclosure) {
                        if (!empty($enclosure['attribs']['URL'])) {
                            $type = null;
                            $length = null;
                            $href = $this->sanitize($enclosure['attribs']['URL'], $enclosure['attribs'], true);
                            if (!empty($enclosure['attribs']['TYPE'])) {
                                $type = $this->sanitize($enclosure['attribs']['TYPE'], $enclosure['attribs']);
                            }
                            if (!empty($enclosure['attribs']['LENGTH'])) {
                                $length = $this->sanitize($enclosure['attribs']['LENGTH'], $enclosure['attribs']);
                            }
                            $newitem['enclosures'][] = new $this->enclosure_class($href, $type, $length);
                        }
                    }
                }

                // ID
                if (!empty($item['guid']['data'])) {
                    if (!empty($item['guid']['attribs']['ISPERMALINK']) && strtolower($item['guid']['attribs']['ISPERMALINK']) == 'false') {
                        $newitem['guid']['permalink'] = false;
                    } else {
                        $newitem['guid']['permalink'] = true;
                    }
                    $newitem['guid']['data'] = $this->sanitize($item['guid']['data'], $item['guid']['attribs']);
                }
                if (!empty($item['id']['data'])) {
                    $newitem['id'] = $this->sanitize($item['id']['data'], $item['id']['attribs']);
                }

                // Date
                if (!empty($item['pubdate']['data'])) {
                    $newitem['pubdate'] = $this->parse_date($this->sanitize($item['pubdate']['data'], $item['pubdate']['attribs']));
                }
                if (!empty($item['dc:date']['data'])) {
                    $newitem['dc:date'] = $this->parse_date($this->sanitize($item['dc:date']['data'], $item['dc:date']['attribs']));
                }
                if (!empty($item['issued']['data'])) {
                    $newitem['issued'] = $this->parse_date($this->sanitize($item['issued']['data'], $item['issued']['attribs']));
                }
                if (!empty($item['published']['data'])) {
                    $newitem['published'] = $this->parse_date($this->sanitize($item['published']['data'], $item['published']['attribs']));
                }
                if (!empty($item['modified']['data'])) {
                    $newitem['modified'] = $this->parse_date($this->sanitize($item['modified']['data'], $item['modified']['attribs']));
                }
                if (!empty($item['updated']['data'])) {
                    $newitem['updated'] = $this->parse_date($this->sanitize($item['updated']['data'], $item['updated']['attribs']));
                }

                // Categories
                if (!empty($item['category'])) {
                    foreach ($item['category'] as $category) {
                        if (!empty($category['data'])) {
                            $newitem['category'][] = $this->sanitize($category['data'], $category['attribs']);
                        } elseif (!empty($category['attribs']['TERM'])) {
                            $newitem['term'][] = $this->sanitize($category['attribs']['TERM'], $category['attribs']);
                        }
                    }
                }
                if (!empty($item['subject'])) {
                    foreach ($item['subject'] as $category) {
                        if (!empty($category['data'])) {
                            $newitem['subject'][] = $this->sanitize($category['data'], $category['attribs']);
                        }
                    }
                }

                // Author
                if (!empty($item['creator'])) {
                    foreach ($item['creator'] as $creator) {
                        if (!empty($creator['data'])) {
                            $newitem['creator'][] = new $this->author_class($this->sanitize($creator['data'], $creator['attribs']), null, null);
                        }
                    }
                }
                if (!empty($item['author'])) {
                    foreach ($item['author'] as $author) {
                        $name = null;
                        $link = null;
                        $email = null;
                        if (!empty($author['rss'])) {
                            $sane = $this->sanitize($author['rss']['data'], $author['rss']['attribs']);
                            if (preg_match('/(.*)@(.*) \((.*)\)/msiU', $sane, $matches)) {
                                $name = trim($matches[3]);
                                $email = trim("$matches[1]@$matches[2]");
                            } else {
                                $email = $sane;
                            }
                        } else {
                            if (!empty($author['name'])) {
                                $name = $this->sanitize($author['name']['data'], $author['name']['attribs']);
                            }
                            if (!empty($author['url'])) {
                                $link = $this->sanitize($author['url']['data'], $author['url']['attribs'], true);
                            } elseif (!empty($author['uri'])) {
                                $link = $this->sanitize($author['uri']['data'], $author['uri']['attribs'], true);
                            } elseif (!empty($author['homepage'])) {
                                $link = $this->sanitize($author['homepage']['data'], $author['homepage']['attribs'], true);
                            }
                            if (!empty($author['email'])) {
                                $email = $this->sanitize($author['email']['data'], $author['email']['attribs']);
                            }
                        }
                        $newitem['author'][] = new $this->author_class($name, $link, $email);
                    }
                }
                unset($data['items'][$key]);
                $this->items[] = new $this->item_class($newitem);
            }
        }
    }

    public function sanitize($data, $attribs, $is_url = false, $force_decode = false)
    {
        $this->attribs = $attribs;
        if (isset($this->feedinfo['type']) && $this->feedinfo['type'] == 'Atom') {
            if ((!empty($attribs['MODE']) && $attribs['MODE'] == 'base64') || (!empty($attribs['TYPE']) && $attribs['TYPE'] == 'application/octet-stream')) {
                $data = trim($data);
                $data = base64_decode($data);
            } elseif ((!empty($attribs['MODE']) && $attribs['MODE'] == 'escaped' || !empty($attribs['TYPE']) && ($attribs['TYPE'] == 'html' || $attribs['TYPE'] == 'text/html'))) {
                $data = $this->entities_decode($data);
            }
            if (!empty($attribs['TYPE']) && ($attribs['TYPE'] == 'xhtml' || $attribs['TYPE'] == 'application/xhtml+xml')) {
                if ($this->remove_div) {
                    $data = preg_replace('/<div( .*)?>/msiU', '', strrev(preg_replace('/>vid\/</i', '', strrev($data), 1)), 1);
                } else {
                    $data = preg_replace('/<div( .*)?>/msiU', '<div>', $data, 1);
                }
                $data = $this->convert_entities($data);
            }
        } else {
            $data = $this->convert_entities($data);
        }
        if ($force_decode) {
            $data = $this->entities_decode($data);
        }
        $data = trim($data);
        $data = preg_replace('/<\!--([^-]|-[^-])*-->/msiU', '', $data);

        // If Strip Ads is enabled, strip them.
        if ($this->strip_ads) {
            $data = preg_replace('/<a (.*)href=(.*)click\.phdo\?s=(.*)<\/a>/msiU', '', $data); // Pheedo links (tested with Dooce.com)
            $data = preg_replace('/<p(.*)>(.*)<a href="http:\/\/ad.doubleclick.net\/jump\/(.*)<\/p>/msiU', '', $data); // Doubleclick links (tested with InfoWorld.com)
            $data = preg_replace('/<p><map (.*)name=(.*)google_ad_map(.*)<\/p>/msiU', '', $data); // Google AdSense for Feeds (tested with tuaw.com).
            // Feedflare, from Feedburner
        }

        // Replace H1, H2, and H3 tags with the less important H4 tags.
        // This is because on a site, the more important headers might make sense,
        // but it most likely doesn't fit in the context of RSS-in-a-webpage.
        if ($this->replace_headers) {
            $data = preg_replace('/<h[1-3]((\s*((\w+:)?\w+)\s*=\s*("([^"]*)"|\'([^\']*)\'|(.*)))*)\s*>/msiU', '<h4\\1>', $data);
            $data = preg_replace('/<\/h[1-3]>/i', '</h4>', $data);
        }

        if ($is_url) {
            $data = $this->replace_urls($data, true);
        } else {
            $data = preg_replace_callback('/<(\S+)((\s*((\w+:)?\w+)\s*=\s*("([^"]*)"|\'([^\']*)\'|(.*)))*)\s*(\/>|>(.*)<\/\S+>)/msiU', array(&$this, 'replace_urls'), $data);
        }

        // If Bypass Image Hotlink is enabled, rewrite all the image tags.
        if ($this->bypass_image_hotlink) {
            $images = SimplePie_Misc::get_element('img', $data);
            foreach ($images as $img) {
                if (!empty($img['attribs']['SRC']['data'])) {
                    $pre = '';
                    if ($this->bypass_image_hotlink_page) {
                        $pre = $this->bypass_image_hotlink_page;
                    }
                    $pre .= "?$this->bypass_image_hotlink=";
                    $img['attribs']['SRC']['data'] = $pre . rawurlencode(strtr($img['attribs']['SRC']['data'], array_flip(get_html_translation_table(HTML_SPECIALCHARS, ENT_QUOTES))));
                    $data = str_replace($img['full'], SimplePie_Misc::element_implode($img), $data);
                }
            }
        }

        // Strip out HTML tags and attributes that might cause various security problems.
        // Based on recommendations by Mark Pilgrim at:
        // http://diveintomark.org/archives/2003/06/12/how_to_consume_rss_safely
        if ($this->strip_htmltags) {
            foreach ($this->strip_htmltags as $tag) {
                $data = preg_replace_callback("/<($tag)((\s*((\w+:)?\w+)(\s*=\s*(\"([^\"]*)\"|'([^']*)'|(.*)))?)*)\s*(\/>|>(.*)<\/($tag)((\s*((\w+:)?\w+)(\s*=\s*(\"([^\"]*)\"|'([^']*)'|(.*)))?)*)\s*>)/msiU", array(&$this, 'do_strip_htmltags'), $data);
            }
        }

        if ($this->strip_attributes) {
            foreach ($this->strip_attributes as $attrib) {
                $data = preg_replace('/ '. trim($attrib) .'=("|&quot;)(\w|\s|=|-|:|;|\/|\.|\?|&|,|#|!|\(|\)|\'|&apos;|<|>|\+|{|})*("|&quot;)/i', '', $data);
                $data = preg_replace('/ '. trim($attrib) .'=(\'|&apos;)(\w|\s|=|-|:|;|\/|\.|\?|&|,|#|!|\(|\)|"|&quot;|<|>|\+|{|})*(\'|&apos;)/i', '', $data);
                $data = preg_replace('/ '. trim($attrib) .'=(\w|\s|=|-|:|;|\/|\.|\?|&|,|#|!|\(|\)|\+|{|})*/i', '', $data);
            }
        }

        // Convert encoding
        $data = SimplePie_Misc::change_encoding($data, $this->input_encoding, $this->output_encoding);

        return $data;
    }

    public function do_strip_htmltags($match)
    {
        if ($this->encode_instead_of_strip) {
            if (isset($match[12]) && !in_array(strtolower($match[1]), array('script', 'style'))) {
                return "&lt;$match[1]$match[2]&gt;$match[12]&lt;/$match[1]&gt;";
            } elseif (isset($match[12])) {
                return "&lt;$match[1]$match[2]&gt;&lt;/$match[1]&gt;";
            } else {
                return "&lt;$match[1]$match[2]/&gt;";
            }
        } else {
            if (isset($match[12]) && !in_array(strtolower($match[1]), array('script', 'style'))) {
                return $match[12];
            } else {
                return '';
            }
        }
    }

    public function replace_urls($data, $raw_url = false)
    {
        if (!empty($this->attribs['XML:BASE'])) {
            $xmlbase = $attribs['XML:BASE'];
        } elseif (!empty($this->attribs['HTTP://WWW.W3.ORG/XML/1998/NAMESPACE:BASE'])) {
            $xmlbase = $this->attribs['HTTP://WWW.W3.ORG/XML/1998/NAMESPACE:BASE'];
        }
        if (!empty($xmlbase)) {
            if (!empty($this->item_xmlbase)) {
                $xmlbase = SimplePie_Misc::absolutize_url($xmlbase, $this->item_xmlbase);
            } else {
                $xmlbase = SimplePie_Misc::absolutize_url($xmlbase, $this->feed_xmlbase);
            }
        } elseif (!empty($this->item_xmlbase)) {
            $xmlbase = $this->item_xmlbase;
        } else {
            $xmlbase = $this->feed_xmlbase;
        }

        if ($raw_url) {
            return SimplePie_Misc::absolutize_url($data, $xmlbase);
        } else {
            $attributes = array(
                'background',
                'href',
                'src',
                'longdesc',
                'usemap',
                'codebase',
                'data',
                'classid',
                'cite',
                'action',
                'profile',
                'for'
            );
            foreach ($attributes as $attribute) {
                if (preg_match("/$attribute='(.*)'/siU", $data[0], $attrib) || preg_match("/$attribute=\"(.*)\"/siU", $data[0], $attrib) || preg_match("/$attribute=(.*)[ |\/|>]/siU", $data[0], $attrib)) {
                    $new_tag = str_replace($attrib[1], SimplePie_Misc::absolutize_url($attrib[1], $xmlbase), $attrib[0]);
                    $data[0] = str_replace($attrib[0], $new_tag, $data[0]);
                }
            }
            return $data[0];
        }
    }

    public function entities_decode($data)
    {
        return preg_replace_callback('/&(#)?(x)?([0-9a-z]+);/mi', array(&$this, 'do_entites_decode'), $data);
    }

    public function do_entites_decode($data)
    {
        if (isset($this->cached_entities[$data[0]])) {
            return $this->cached_entities[$data[0]];
        } else {
            $return = SimplePie_Misc::change_encoding(html_entity_decode($data[0], ENT_QUOTES), 'ISO-8859-1', $this->input_encoding);
            if ($return == $data[0]) {
                $return = SimplePie_Misc::change_encoding(preg_replace_callback('/&#([x]?[0-9a-f]+);/mi', array(&$this, 'replace_num_entity'), $data[0]), 'UTF-8', $this->input_encoding);
            }
            $this->cached_entities[$data[0]] = $return;
            return $return;
        }
    }

    public function convert_entities($data)
    {
        return preg_replace_callback('/&#(x)?([0-9a-z]+);/mi', array(&$this, 'do_convert_entities'), $data);
    }

    public function do_convert_entities($data)
    {
        if (isset($this->cache_convert_entities[$data[0]])) {
            return $this->cache_convert_entities[$data[0]];
        } elseif (isset($this->cached_entities[$data[0]])) {
            $return = htmlentities($this->cached_entities[$data[0]], ENT_QUOTES, 'UTF-8');
        } else {
            $return = htmlentities(preg_replace_callback('/&#([x]?[0-9a-f]+);/mi', array(&$this, 'replace_num_entity'), $data[0]), ENT_QUOTES, 'UTF-8');
        }
        $this->cache_convert_entities[$data[0]] = $return;
        return $return;
    }

    /*
     * Escape numeric entities
     * From a PHP Manual note (on html_entity_decode())
     * Copyright (c) 2005 by "php dot net at c dash ovidiu dot tk",
     * "emilianomartinezluque at yahoo dot com" and "hurricane at cyberworldz dot org".
     *
     * This material may be distributed only subject to the terms and conditions set forth in
     * the Open Publication License, v1.0 or later (the latest version is presently available at
     * http://www.opencontent.org/openpub/).
     */
    public function replace_num_entity($ord)
    {
        $ord = $ord[1];
        if (preg_match('/^x([0-9a-f]+)$/i', $ord, $match)) {
            $ord = hexdec($match[1]);
        } else {
            $ord = intval($ord);
        }

        $no_bytes = 0;
        $byte = array();
        if ($ord < 128) {
            return chr($ord);
        }
        if ($ord < 2048) {
            $no_bytes = 2;
        } elseif ($ord < 65536) {
            $no_bytes = 3;
        } elseif ($ord < 1114112) {
            $no_bytes = 4;
        } else {
            return;
        }
        switch ($no_bytes) {
            case 2:
                $prefix = array(31, 192);
                break;

            case 3:
                $prefix = array(15, 224);
                break;

            case 4:
                $prefix = array(7, 240);
                break;
        }

        for ($i = 0; $i < $no_bytes; $i++) {
            $byte[$no_bytes-$i-1] = (($ord & (63 * pow(2, 6*$i))) / pow(2, 6*$i)) & 63 | 128;
        }
        $byte[0] = ($byte[0] & $prefix[0]) | $prefix[1];

        $ret = '';
        for ($i = 0; $i < $no_bytes; $i++) {
            $ret .= chr($byte[$i]);
        }
        return $ret;
    }

    public function parse_date($date)
    {
        $military_timezone = array('A' => '-0100', 'B' => '-0200', 'C' => '-0300', 'D' => '-0400', 'E' => '-0500', 'F' => '-0600', 'G' => '-0700', 'H' => '-0800', 'I' => '-0900', 'K' => '-1000', 'L' => '-1100', 'M' => '-1200', 'N' => '+0100', 'O' => '+0200', 'P' => '+0300', 'Q' => '+0400', 'R' => '+0500', 'S' => '+0600', 'T' => '+0700', 'U' => '+0800', 'V' => '+0900', 'W' => '+1000', 'X' => '+1100', 'Y' => '+1200', 'Z' => '-0000');
        $north_american_timezone = array('GMT' => '-0000', 'EST' => '-0500', 'EDT' => '-0400', 'CST' => '-0600', 'CDT' => '-0500', 'MST' => '-0700', 'MDT' => '-0600', 'PST' => '-0800', 'PDT' => '-0700');
        if (preg_match('/([0-9]{2,4})-?([0-9]{2})-?([0-9]{2})T([0-9]{2}):?([0-9]{2})(:?([0-9]{2}(\.[0-9]*)?))?(UT|GMT|EST|EDT|CST|CDT|MST|MDT|PST|PDT|[a-z]|(\\+|-)[0-9]{4}|(\\+|-)[0-9]{2}:[0-9]{2})?/i', $date, $matches)) {
            if (!isset($matches[7])) {
                $matches[7] = '';
            }
            if (!isset($matches[9])) {
                $matches[9] = '';
            }
            $matches[7] = str_pad(round($matches[7]), 2, '0', STR_PAD_LEFT);
            switch (strlen($matches[9])) {
                case 0:
                    $timezone = '';
                    break;

                case 1:
                    $timezone = $military_timezone[strtoupper($matches[9])];
                    break;

                case 2:
                    $timezone = '-0000';
                    break;

                case 3:
                    $timezone = $north_american_timezone[strtoupper($matches[9])];
                    break;

                case 5:
                    $timezone = $matches[9];
                    break;

                case 6:
                    $timezone = substr_replace($matches[9], '', 3, 1);
                    break;
            }
            $date = strtotime("$matches[1]-$matches[2]-$matches[3] $matches[4]:$matches[5]:$matches[7] $timezone");
        } elseif (preg_match('/([0-9]{1,2})\s*(Jan|Feb|Mar|Apr|May|Jun|Jul|Aug|Sep|Oct|Nov|Dec)\s*([0-9]{2}|[0-9]{4})\s*([0-9]{2}):([0-9]{2})(:([0-9]{2}(\.[0-9]*)?))?\s*(UT|GMT|EST|EDT|CST|CDT|MST|MDT|PST|PDT|[a-z]|(\\+|-)[0-9]{4}|(\\+|-)[0-9]{2}:[0-9]{2})?/i', $date, $matches)) {
            $three_month = array('Jan' => 1, 'Feb' => 2, 'Mar' => 3, 'Apr' => 4, 'May' => 5, 'Jun' => 6, 'Jul' => 7, 'Aug' => 8, 'Sep' => 9, 'Oct' => 10, 'Nov' => 11, 'Dec' => 12);
            $month = $three_month[$matches[2]];
            if (strlen($matches[3]) == 2) {
                $year = ($matches[3] < 70) ? "20$matches[3]" : "19$matches[3]";
            } else {
                $year = $matches[3];
            }
            if (!isset($matches[7])) {
                $matches[7] = '';
            }
            if (!isset($matches[9])) {
                $matches[9] = '';
            }
            $second = str_pad(round($matches[7]), 2, '0', STR_PAD_LEFT);
            switch (strlen($matches[9])) {
                case 0:
                    $timezone = '';
                    break;

                case 1:
                    $timezone = $military_timezone[strtoupper($matches[9])];
                    break;

                case 2:
                    $timezone = '-0000';
                    break;

                case 3:
                    $timezone = $north_american_timezone[strtoupper($matches[9])];
                    break;

                case 5:
                    $timezone = $matches[9];
                    break;

                case 6:
                    $timezone = substr_replace($matches[9], '', 3, 1);
                    break;
            }
            $date = strtotime("$year-$month-$matches[1] $matches[4]:$matches[5]:$second $timezone");
        } else {
            $date = strtotime($date);
        }
        if ($date !== false && $date !== -1) {
            return $date;
        } else {
            return false;
        }
    }
}