Simplepie.php

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<?php
define('SIMPLEPIE_NAME', 'SimplePie');
define('SIMPLEPIE_VERSION', '1.3.1');
define('SIMPLEPIE_BUILD', '20121030175911');
define('SIMPLEPIE_URL', 'http://simplepie.org');
define('SIMPLEPIE_USERAGENT', SIMPLEPIE_NAME . '/' . SIMPLEPIE_VERSION . ' (Feed Parser; ' . SIMPLEPIE_URL . '; Allow like Gecko) Build/' . SIMPLEPIE_BUILD);
define('SIMPLEPIE_LINKBACK', '<a href="' . SIMPLEPIE_URL . '" title="' . SIMPLEPIE_NAME . ' ' . SIMPLEPIE_VERSION . '">' . SIMPLEPIE_NAME . '</a>');
define('SIMPLEPIE_LOCATOR_NONE', 0);
define('SIMPLEPIE_LOCATOR_AUTODISCOVERY', 1);
define('SIMPLEPIE_LOCATOR_LOCAL_EXTENSION', 2);
define('SIMPLEPIE_LOCATOR_LOCAL_BODY', 4);
define('SIMPLEPIE_LOCATOR_REMOTE_EXTENSION', 8);
define('SIMPLEPIE_LOCATOR_REMOTE_BODY', 16);
define('SIMPLEPIE_LOCATOR_ALL', 31);
define('SIMPLEPIE_TYPE_NONE', 0);
define('SIMPLEPIE_TYPE_RSS_090', 1);
define('SIMPLEPIE_TYPE_RSS_091_NETSCAPE', 2);
define('SIMPLEPIE_TYPE_RSS_091_USERLAND', 4);
define('SIMPLEPIE_TYPE_RSS_091', 6);
define('SIMPLEPIE_TYPE_RSS_092', 8);
define('SIMPLEPIE_TYPE_RSS_093', 16);
define('SIMPLEPIE_TYPE_RSS_094', 32);
define('SIMPLEPIE_TYPE_RSS_10', 64);
define('SIMPLEPIE_TYPE_RSS_20', 128);
define('SIMPLEPIE_TYPE_RSS_RDF', 65);
define('SIMPLEPIE_TYPE_RSS_SYNDICATION', 190);
define('SIMPLEPIE_TYPE_RSS_ALL', 255);
define('SIMPLEPIE_TYPE_ATOM_03', 256);
define('SIMPLEPIE_TYPE_ATOM_10', 512);
define('SIMPLEPIE_TYPE_ATOM_ALL', 768);
define('SIMPLEPIE_TYPE_ALL', 1023);
define('SIMPLEPIE_CONSTRUCT_NONE', 0);
define('SIMPLEPIE_CONSTRUCT_TEXT', 1);
define('SIMPLEPIE_CONSTRUCT_HTML', 2);
define('SIMPLEPIE_CONSTRUCT_XHTML', 4);
define('SIMPLEPIE_CONSTRUCT_BASE64', 8);
define('SIMPLEPIE_CONSTRUCT_IRI', 16);
define('SIMPLEPIE_CONSTRUCT_MAYBE_HTML', 32);
define('SIMPLEPIE_CONSTRUCT_ALL', 63);
define('SIMPLEPIE_SAME_CASE', 1);
define('SIMPLEPIE_LOWERCASE', 2);
define('SIMPLEPIE_UPPERCASE', 4);
define('SIMPLEPIE_PCRE_HTML_ATTRIBUTE', '((?:[\x09\x0A\x0B\x0C\x0D\x20]+[^\x09\x0A\x0B\x0C\x0D\x20\x2F\x3E][^\x09\x0A\x0B\x0C\x0D\x20\x2F\x3D\x3E]*(?:[\x09\x0A\x0B\x0C\x0D\x20]*=[\x09\x0A\x0B\x0C\x0D\x20]*(?:"(?:[^"]*)"|\'(?:[^\']*)\'|(?:[^\x09\x0A\x0B\x0C\x0D\x20\x22\x27\x3E][^\x09\x0A\x0B\x0C\x0D\x20\x3E]*)?))?)*)[\x09\x0A\x0B\x0C\x0D\x20]*');
define('SIMPLEPIE_PCRE_XML_ATTRIBUTE', '((?:\s+(?:(?:[^\s:]+:)?[^\s:]+)\s*=\s*(?:"(?:[^"]*)"|\'(?:[^\']*)\'))*)\s*');
define('SIMPLEPIE_NAMESPACE_XML', 'http://www.w3.org/XML/1998/namespace');
define('SIMPLEPIE_NAMESPACE_ATOM_10', 'http://www.w3.org/2005/Atom');
define('SIMPLEPIE_NAMESPACE_ATOM_03', 'http://purl.org/atom/ns#');
define('SIMPLEPIE_NAMESPACE_RDF', 'http://www.w3.org/1999/02/22-rdf-syntax-ns#');
define('SIMPLEPIE_NAMESPACE_RSS_090', 'http://my.netscape.com/rdf/simple/0.9/');
define('SIMPLEPIE_NAMESPACE_RSS_10', 'http://purl.org/rss/1.0/');
define('SIMPLEPIE_NAMESPACE_RSS_10_MODULES_CONTENT', 'http://purl.org/rss/1.0/modules/content/');
define('SIMPLEPIE_NAMESPACE_RSS_20', '');
define('SIMPLEPIE_NAMESPACE_DC_10', 'http://purl.org/dc/elements/1.0/');
define('SIMPLEPIE_NAMESPACE_DC_11', 'http://purl.org/dc/elements/1.1/');
define('SIMPLEPIE_NAMESPACE_W3C_BASIC_GEO', 'http://www.w3.org/2003/01/geo/wgs84_pos#');
define('SIMPLEPIE_NAMESPACE_GEORSS', 'http://www.georss.org/georss');
define('SIMPLEPIE_NAMESPACE_MEDIARSS', 'http://search.yahoo.com/mrss/');
define('SIMPLEPIE_NAMESPACE_MEDIARSS_WRONG', 'http://search.yahoo.com/mrss');
define('SIMPLEPIE_NAMESPACE_MEDIARSS_WRONG2', 'http://video.search.yahoo.com/mrss');
define('SIMPLEPIE_NAMESPACE_MEDIARSS_WRONG3', 'http://video.search.yahoo.com/mrss/');
define('SIMPLEPIE_NAMESPACE_MEDIARSS_WRONG4', 'http://www.rssboard.org/media-rss');
define('SIMPLEPIE_NAMESPACE_MEDIARSS_WRONG5', 'http://www.rssboard.org/media-rss/');
define('SIMPLEPIE_NAMESPACE_ITUNES', 'http://www.itunes.com/dtds/podcast-1.0.dtd');
define('SIMPLEPIE_NAMESPACE_XHTML', 'http://www.w3.org/1999/xhtml');
define('SIMPLEPIE_IANA_LINK_RELATIONS_REGISTRY', 'http://www.iana.org/assignments/relation/');
define('SIMPLEPIE_FILE_SOURCE_NONE', 0);
define('SIMPLEPIE_FILE_SOURCE_REMOTE', 1);
define('SIMPLEPIE_FILE_SOURCE_LOCAL', 2);
define('SIMPLEPIE_FILE_SOURCE_FSOCKOPEN', 4);
define('SIMPLEPIE_FILE_SOURCE_CURL', 8);
define('SIMPLEPIE_FILE_SOURCE_FILE_GET_CONTENTS', 16);
class SimplePie
{
     
     public $data = array();
     
     public $error;
     
     public $sanitize;
     
     public $useragent = SIMPLEPIE_USERAGENT;
     
     public $feed_url;
     
     public $file;
     
     public $raw_data;
     
     public $timeout = 10;
     
     public $force_fsockopen = false;
     
     public $force_feed = false;
     
     public $cache = true;
     
     public $cache_duration = 3600;
     
     public $autodiscovery_cache_duration = 604800; // 7 Days.
     
     public $cache_location = './cache';
     
     public $cache_name_function = 'md5';
     
     public $order_by_date = true;
     
     public $input_encoding = false;
     
     public $autodiscovery = SIMPLEPIE_LOCATOR_ALL;
     
     public $registry;
     
     public $max_checked_feeds = 10;
     
     public $all_discovered_feeds = array();
     
     public $image_handler = '';
     
     public $multifeed_url = array();
     
     public $multifeed_objects = array();
     
     public $config_settings = null;
     
     public $item_limit = 0;
     
     public $strip_attributes = array('bgsound', 'class', 'expr', 'id', 'style', 'onclick', 'onerror', 'onfinish', 'onmouseover', 'onmouseout', 'onfocus', 'onblur', 'lowsrc', 'dynsrc');
     
     public $strip_htmltags = array('base', 'blink', 'body', 'doctype', 'embed', 'font', 'form', 'frame', 'frameset', 'html', 'iframe', 'input', 'marquee', 'meta', 'noscript', 'object', 'param', 'script', 'style');
     
     public function __construct()
     {
          if (version_compare(PHP_VERSION, '5.2', '<'))
          {
               trigger_error('PHP 4.x, 5.0 and 5.1 are no longer supported. Please upgrade to PHP 5.2 or newer.');
               die();
          }
          // Other objects, instances created here so we can set options on them
          $this->sanitize = new SimplePie_Sanitize();
          $this->registry = new SimplePie_Registry();
          if (func_num_args() > 0)
          {
               $level = defined('E_USER_DEPRECATED') ? E_USER_DEPRECATED : E_USER_WARNING;
               trigger_error('Passing parameters to the constructor is no longer supported. Please use set_feed_url(), set_cache_location(), and set_cache_location() directly.', $level);
               $args = func_get_args();
               switch (count($args)) {
                    case 3:
                         $this->set_cache_duration($args[2]);
                    case 2:
                         $this->set_cache_location($args[1]);
                    case 1:
                         $this->set_feed_url($args[0]);
                         $this->init();
               }
          }
     }
     
     public function __toString()
     {
          return md5(serialize($this->data));
     }
     
     public function __destruct()
     {
          if ((version_compare(PHP_VERSION, '5.3', '<') || !gc_enabled()) && !ini_get('zend.ze1_compatibility_mode'))
          {
               if (!empty($this->data['items']))
               {
                    foreach ($this->data['items'] as $item)
                    {
                         $item->__destruct();
                    }
                    unset($item, $this->data['items']);
               }
               if (!empty($this->data['ordered_items']))
               {
                    foreach ($this->data['ordered_items'] as $item)
                    {
                         $item->__destruct();
                    }
                    unset($item, $this->data['ordered_items']);
               }
          }
     }
     
     public function force_feed($enable = false)
     {
          $this->force_feed = (bool) $enable;
     }
     
     public function set_feed_url($url)
     {
          $this->multifeed_url = array();
          if (is_array($url))
          {
               foreach ($url as $value)
               {
                    $this->multifeed_url[] = $this->registry->call('Misc', 'fix_protocol', array($value, 1));
               }
          }
          else
          {
               $this->feed_url = $this->registry->call('Misc', 'fix_protocol', array($url, 1));
          }
     }
     
     public function set_file(&$file)
     {
          if ($file instanceof SimplePie_File)
          {
               $this->feed_url = $file->url;
               $this->file =& $file;
               return true;
          }
          return false;
     }
     
     public function set_raw_data($data)
     {
          $this->raw_data = $data;
     }
     
     public function set_timeout($timeout = 10)
     {
          $this->timeout = (int) $timeout;
     }
     
     public function force_fsockopen($enable = false)
     {
          $this->force_fsockopen = (bool) $enable;
     }
     
     public function enable_cache($enable = true)
     {
          $this->cache = (bool) $enable;
     }
     
     public function set_cache_duration($seconds = 3600)
     {
          $this->cache_duration = (int) $seconds;
     }
     
     public function set_autodiscovery_cache_duration($seconds = 604800)
     {
          $this->autodiscovery_cache_duration = (int) $seconds;
     }
     
     public function set_cache_location($location = './cache')
     {
          $this->cache_location = (string) $location;
     }
     
     public function enable_order_by_date($enable = true)
     {
          $this->order_by_date = (bool) $enable;
     }
     
     public function set_input_encoding($encoding = false)
     {
          if ($encoding)
          {
               $this->input_encoding = (string) $encoding;
          }
          else
          {
               $this->input_encoding = false;
          }
     }
     
     public function set_autodiscovery_level($level = SIMPLEPIE_LOCATOR_ALL)
     {
          $this->autodiscovery = (int) $level;
     }
     
     public function &get_registry()
     {
          return $this->registry;
     }
     
     
     public function set_cache_class($class = 'SimplePie_Cache')
     {
          return $this->registry->register('Cache', $class, true);
     }
     
     public function set_locator_class($class = 'SimplePie_Locator')
     {
          return $this->registry->register('Locator', $class, true);
     }
     
     public function set_parser_class($class = 'SimplePie_Parser')
     {
          return $this->registry->register('Parser', $class, true);
     }
     
     public function set_file_class($class = 'SimplePie_File')
     {
          return $this->registry->register('File', $class, true);
     }
     
     public function set_sanitize_class($class = 'SimplePie_Sanitize')
     {
          return $this->registry->register('Sanitize', $class, true);
     }
     
     public function set_item_class($class = 'SimplePie_Item')
     {
          return $this->registry->register('Item', $class, true);
     }
     
     public function set_author_class($class = 'SimplePie_Author')
     {
          return $this->registry->register('Author', $class, true);
     }
     
     public function set_category_class($class = 'SimplePie_Category')
     {
          return $this->registry->register('Category', $class, true);
     }
     
     public function set_enclosure_class($class = 'SimplePie_Enclosure')
     {
          return $this->registry->register('Enclosure', $class, true);
     }
     
     public function set_caption_class($class = 'SimplePie_Caption')
     {
          return $this->registry->register('Caption', $class, true);
     }
     
     public function set_copyright_class($class = 'SimplePie_Copyright')
     {
          return $this->registry->register('Copyright', $class, true);
     }
     
     public function set_credit_class($class = 'SimplePie_Credit')
     {
          return $this->registry->register('Credit', $class, true);
     }
     
     public function set_rating_class($class = 'SimplePie_Rating')
     {
          return $this->registry->register('Rating', $class, true);
     }
     
     public function set_restriction_class($class = 'SimplePie_Restriction')
     {
          return $this->registry->register('Restriction', $class, true);
     }
     
     public function set_content_type_sniffer_class($class = 'SimplePie_Content_Type_Sniffer')
     {
          return $this->registry->register('Content_Type_Sniffer', $class, true);
     }
     
     public function set_source_class($class = 'SimplePie_Source')
     {
          return $this->registry->register('Source', $class, true);
     }
     
     
     public function set_useragent($ua = SIMPLEPIE_USERAGENT)
     {
          $this->useragent = (string) $ua;
     }
     
     public function set_cache_name_function($function = 'md5')
     {
          if (is_callable($function))
          {
               $this->cache_name_function = $function;
          }
     }
     
     public function set_stupidly_fast($set = false)
     {
          if ($set)
          {
               $this->enable_order_by_date(false);
               $this->remove_div(false);
               $this->strip_comments(false);
               $this->strip_htmltags(false);
               $this->strip_attributes(false);
               $this->set_image_handler(false);
          }
     }
     
     public function set_max_checked_feeds($max = 10)
     {
          $this->max_checked_feeds = (int) $max;
     }
     public function remove_div($enable = true)
     {
          $this->sanitize->remove_div($enable);
     }
     public function strip_htmltags($tags = '', $encode = null)
     {
          if ($tags === '')
          {
               $tags = $this->strip_htmltags;
          }
          $this->sanitize->strip_htmltags($tags);
          if ($encode !== null)
          {
               $this->sanitize->encode_instead_of_strip($tags);
          }
     }
     public function encode_instead_of_strip($enable = true)
     {
          $this->sanitize->encode_instead_of_strip($enable);
     }
     public function strip_attributes($attribs = '')
     {
          if ($attribs === '')
          {
               $attribs = $this->strip_attributes;
          }
          $this->sanitize->strip_attributes($attribs);
     }
     
     public function set_output_encoding($encoding = 'UTF-8')
     {
          $this->sanitize->set_output_encoding($encoding);
     }
     public function strip_comments($strip = false)
     {
          $this->sanitize->strip_comments($strip);
     }
     
     public function set_url_replacements($element_attribute = null)
     {
          $this->sanitize->set_url_replacements($element_attribute);
     }
     
     public function set_image_handler($page = false, $qs = 'i')
     {
          if ($page !== false)
          {
               $this->sanitize->set_image_handler($page . '?' . $qs . '=');
          }
          else
          {
               $this->image_handler = '';
          }
     }
     
     public function set_item_limit($limit = 0)
     {
          $this->item_limit = (int) $limit;
     }
     
     public function init()
     {
          // Check absolute bare minimum requirements.
          if (!extension_loaded('xml') || !extension_loaded('pcre'))
          {
               return false;
          }
          // Then check the xml extension is sane (i.e., libxml 2.7.x issue on PHP < 5.2.9 and libxml 2.7.0 to 2.7.2 on any version) if we don't have xmlreader.
          elseif (!extension_loaded('xmlreader'))
          {
               static $xml_is_sane = null;
               if ($xml_is_sane === null)
               {
                    $parser_check = xml_parser_create();
                    xml_parse_into_struct($parser_check, '<foo>&amp;</foo>', $values);
                    xml_parser_free($parser_check);
                    $xml_is_sane = isset($values[0]['value']);
               }
               if (!$xml_is_sane)
               {
                    return false;
               }
          }
          if (method_exists($this->sanitize, 'set_registry'))
          {
               $this->sanitize->set_registry($this->registry);
          }
          // Pass whatever was set with config options over to the sanitizer.
          // Pass the classes in for legacy support; new classes should use the registry instead
          $this->sanitize->pass_cache_data($this->cache, $this->cache_location, $this->cache_name_function, $this->registry->get_class('Cache'));
          $this->sanitize->pass_file_data($this->registry->get_class('File'), $this->timeout, $this->useragent, $this->force_fsockopen);
          if (!empty($this->multifeed_url))
          {
               $i = 0;
               $success = 0;
               $this->multifeed_objects = array();
               $this->error = array();
               foreach ($this->multifeed_url as $url)
               {
                    $this->multifeed_objects[$i] = clone $this;
                    $this->multifeed_objects[$i]->set_feed_url($url);
                    $single_success = $this->multifeed_objects[$i]->init();
                    $success |= $single_success;
                    if (!$single_success)
                    {
                         $this->error[$i] = $this->multifeed_objects[$i]->error();
                    }
                    $i++;
               }
               return (bool) $success;
          }
          elseif ($this->feed_url === null && $this->raw_data === null)
          {
               return false;
          }
          $this->error = null;
          $this->data = array();
          $this->multifeed_objects = array();
          $cache = false;
          if ($this->feed_url !== null)
          {
               $parsed_feed_url = $this->registry->call('Misc', 'parse_url', array($this->feed_url));
               // Decide whether to enable caching
               if ($this->cache && $parsed_feed_url['scheme'] !== '')
               {
                    $cache = $this->registry->call('Cache', 'get_handler', array($this->cache_location, call_user_func($this->cache_name_function, $this->feed_url), 'spc'));
               }
               // Fetch the data via SimplePie_File into $this->raw_data
               if (($fetched = $this->fetch_data($cache)) === true)
               {
                    return true;
               }
               elseif ($fetched === false) {
                    return false;
               }
               list($headers, $sniffed) = $fetched;
          }
          // Set up array of possible encodings
          $encodings = array();
          // First check to see if input has been overridden.
          if ($this->input_encoding !== false)
          {
               $encodings[] = $this->input_encoding;
          }
          $application_types = array('application/xml', 'application/xml-dtd', 'application/xml-external-parsed-entity');
          $text_types = array('text/xml', 'text/xml-external-parsed-entity');
          // RFC 3023 (only applies to sniffed content)
          if (isset($sniffed))
          {
               if (in_array($sniffed, $application_types) || substr($sniffed, 0, 12) === 'application/' && substr($sniffed, -4) === '+xml')
               {
                    if (isset($headers['content-type']) && preg_match('/;\x20?charset=([^;]*)/i', $headers['content-type'], $charset))
                    {
                         $encodings[] = strtoupper($charset[1]);
                    }
                    $encodings = array_merge($encodings, $this->registry->call('Misc', 'xml_encoding', array($this->raw_data, &$this->registry)));
                    $encodings[] = 'UTF-8';
               }
               elseif (in_array($sniffed, $text_types) || substr($sniffed, 0, 5) === 'text/' && substr($sniffed, -4) === '+xml')
               {
                    if (isset($headers['content-type']) && preg_match('/;\x20?charset=([^;]*)/i', $headers['content-type'], $charset))
                    {
                         $encodings[] = $charset[1];
                    }
                    $encodings[] = 'US-ASCII';
               }
               // Text MIME-type default
               elseif (substr($sniffed, 0, 5) === 'text/')
               {
                    $encodings[] = 'US-ASCII';
               }
          }
          // Fallback to XML 1.0 Appendix F.1/UTF-8/ISO-8859-1
          $encodings = array_merge($encodings, $this->registry->call('Misc', 'xml_encoding', array($this->raw_data, &$this->registry)));
          $encodings[] = 'UTF-8';
          $encodings[] = 'ISO-8859-1';
          // There's no point in trying an encoding twice
          $encodings = array_unique($encodings);
          // Loop through each possible encoding, till we return something, or run out of possibilities
          foreach ($encodings as $encoding)
          {
               // Change the encoding to UTF-8 (as we always use UTF-8 internally)
               if ($utf8_data = $this->registry->call('Misc', 'change_encoding', array($this->raw_data, $encoding, 'UTF-8')))
               {
                    // Create new parser
                    $parser = $this->registry->create('Parser');
                    // If it's parsed fine
                    if ($parser->parse($utf8_data, 'UTF-8'))
                    {
                         $this->data = $parser->get_data();
                         if (!($this->get_type() & ~SIMPLEPIE_TYPE_NONE))
                         {
                              $this->error = "A feed could not be found at $this->feed_url. This does not appear to be a valid RSS or Atom feed.";
                              $this->registry->call('Misc', 'error', array($this->error, E_USER_NOTICE, __FILE__, __LINE__));
                              return false;
                         }
                         if (isset($headers))
                         {
                              $this->data['headers'] = $headers;
                         }
                         $this->data['build'] = SIMPLEPIE_BUILD;
                         // Cache the file if caching is enabled
                         if ($cache && !$cache->save($this))
                         {
                              trigger_error("$this->cache_location is not writeable. Make sure you've set the correct relative or absolute path, and that the location is server-writable.", E_USER_WARNING);
                         }
                         return true;
                    }
               }
          }
          if (isset($parser))
          {
               // We have an error, just set SimplePie_Misc::error to it and quit
               $this->error = sprintf('This XML document is invalid, likely due to invalid characters. XML error: %s at line %d, column %d', $parser->get_error_string(), $parser->get_current_line(), $parser->get_current_column());
          }
          else
          {
               $this->error = 'The data could not be converted to UTF-8. You MUST have either the iconv or mbstring extension installed. Upgrading to PHP 5.x (which includes iconv) is highly recommended.';
          }
          $this->registry->call('Misc', 'error', array($this->error, E_USER_NOTICE, __FILE__, __LINE__));
          return false;
     }
     
     protected function fetch_data(&$cache)
     {
          // If it's enabled, use the cache
          if ($cache)
          {
               // Load the Cache
               $this->data = $cache->load();
               if (!empty($this->data))
               {
                    // If the cache is for an outdated build of SimplePie
                    if (!isset($this->data['build']) || $this->data['build'] !== SIMPLEPIE_BUILD)
                    {
                         $cache->unlink();
                         $this->data = array();
                    }
                    // If we've hit a collision just rerun it with caching disabled
                    elseif (isset($this->data['url']) && $this->data['url'] !== $this->feed_url)
                    {
                         $cache = false;
                         $this->data = array();
                    }
                    // If we've got a non feed_url stored (if the page isn't actually a feed, or is a redirect) use that URL.
                    elseif (isset($this->data['feed_url']))
                    {
                         // If the autodiscovery cache is still valid use it.
                         if ($cache->mtime() + $this->autodiscovery_cache_duration > time())
                         {
                              // Do not need to do feed autodiscovery yet.
                              if ($this->data['feed_url'] !== $this->data['url'])
                              {
                                   $this->set_feed_url($this->data['feed_url']);
                                   return $this->init();
                              }
                              $cache->unlink();
                              $this->data = array();
                         }
                    }
                    // Check if the cache has been updated
                    elseif ($cache->mtime() + $this->cache_duration < time())
                    {
                         // If we have last-modified and/or etag set
                         if (isset($this->data['headers']['last-modified']) || isset($this->data['headers']['etag']))
                         {
                              $headers = array(
                                   'Accept' => 'application/atom+xml, application/rss+xml, application/rdf+xml;q=0.9, application/xml;q=0.8, text/xml;q=0.8, text/html;q=0.7, unknown/unknown;q=0.1, application/unknown;q=0.1, */*;q=0.1',
                              );
                              if (isset($this->data['headers']['last-modified']))
                              {
                                   $headers['if-modified-since'] = $this->data['headers']['last-modified'];
                              }
                              if (isset($this->data['headers']['etag']))
                              {
                                   $headers['if-none-match'] = $this->data['headers']['etag'];
                              }
                              $file = $this->registry->create('File', array($this->feed_url, $this->timeout/10, 5, $headers, $this->useragent, $this->force_fsockopen));
                              if ($file->success)
                              {
                                   if ($file->status_code === 304)
                                   {
                                        $cache->touch();
                                        return true;
                                   }
                              }
                              else
                              {
                                   unset($file);
                              }
                         }
                    }
                    // If the cache is still valid, just return true
                    else
                    {
                         $this->raw_data = false;
                         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 ($this->file instanceof SimplePie_File && $this->file->url === $this->feed_url)
               {
                    $file =& $this->file;
               }
               else
               {
                    $headers = array(
                         'Accept' => 'application/atom+xml, application/rss+xml, application/rdf+xml;q=0.9, application/xml;q=0.8, text/xml;q=0.8, text/html;q=0.7, unknown/unknown;q=0.1, application/unknown;q=0.1, */*;q=0.1',
                    );
                    $file = $this->registry->create('File', array($this->feed_url, $this->timeout, 5, $headers, $this->useragent, $this->force_fsockopen));
               }
          }
          // If the file connection has an error, set SimplePie::error to that and quit
          if (!$file->success && !($file->method & SIMPLEPIE_FILE_SOURCE_REMOTE === 0 || ($file->status_code === 200 || $file->status_code > 206 && $file->status_code < 300)))
          {
               $this->error = $file->error;
               return !empty($this->data);
          }
          if (!$this->force_feed)
          {
               // Check if the supplied URL is a feed, if it isn't, look for it.
               $locate = $this->registry->create('Locator', array(&$file, $this->timeout, $this->useragent, $this->max_checked_feeds));
               if (!$locate->is_feed($file))
               {
                    // We need to unset this so that if SimplePie::set_file() has been called that object is untouched
                    unset($file);
                    try
                    {
                         if (!($file = $locate->find($this->autodiscovery, $this->all_discovered_feeds)))
                         {
                              $this->error = "A feed could not be found at $this->feed_url. A feed with an invalid mime type may fall victim to this error, or " . SIMPLEPIE_NAME . " was unable to auto-discover it.. Use force_feed() if you are certain this URL is a real feed.";
                              $this->registry->call('Misc', 'error', array($this->error, E_USER_NOTICE, __FILE__, __LINE__));
                              return false;
                         }
                    }
                    catch (SimplePie_Exception $e)
                    {
                         // This is usually because DOMDocument doesn't exist
                         $this->error = $e->getMessage();
                         $this->registry->call('Misc', 'error', array($this->error, E_USER_NOTICE, $e->getFile(), $e->getLine()));
                         return false;
                    }
                    if ($cache)
                    {
                         $this->data = array('url' => $this->feed_url, 'feed_url' => $file->url, 'build' => SIMPLEPIE_BUILD);
                         if (!$cache->save($this))
                         {
                              trigger_error("$this->cache_location is not writeable. Make sure you've set the correct relative or absolute path, and that the location is server-writable.", E_USER_WARNING);
                         }
                         $cache = $this->registry->call('Cache', 'get_handler', array($this->cache_location, call_user_func($this->cache_name_function, $file->url), 'spc'));
                    }
                    $this->feed_url = $file->url;
               }
               $locate = null;
          }
          $this->raw_data = $file->body;
          $headers = $file->headers;
          $sniffer = $this->registry->create('Content_Type_Sniffer', array(&$file));
          $sniffed = $sniffer->get_type();
          return array($headers, $sniffed);
     }
     
     public function error()
     {
          return $this->error;
     }
     
     public function get_raw_data()
     {
          return $this->raw_data;
     }
     
     public function get_encoding()
     {
          return $this->sanitize->output_encoding;
     }
     
     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 (!isset($this->data['type']))
          {
               $this->data['type'] = SIMPLEPIE_TYPE_ALL;
               if (isset($this->data['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['feed']))
               {
                    $this->data['type'] &= SIMPLEPIE_TYPE_ATOM_10;
               }
               elseif (isset($this->data['child'][SIMPLEPIE_NAMESPACE_ATOM_03]['feed']))
               {
                    $this->data['type'] &= SIMPLEPIE_TYPE_ATOM_03;
               }
               elseif (isset($this->data['child'][SIMPLEPIE_NAMESPACE_RDF]['RDF']))
               {
                    if (isset($this->data['child'][SIMPLEPIE_NAMESPACE_RDF]['RDF'][0]['child'][SIMPLEPIE_NAMESPACE_RSS_10]['channel'])
                    || isset($this->data['child'][SIMPLEPIE_NAMESPACE_RDF]['RDF'][0]['child'][SIMPLEPIE_NAMESPACE_RSS_10]['image'])
                    || isset($this->data['child'][SIMPLEPIE_NAMESPACE_RDF]['RDF'][0]['child'][SIMPLEPIE_NAMESPACE_RSS_10]['item'])
                    || isset($this->data['child'][SIMPLEPIE_NAMESPACE_RDF]['RDF'][0]['child'][SIMPLEPIE_NAMESPACE_RSS_10]['textinput']))
                    {
                         $this->data['type'] &= SIMPLEPIE_TYPE_RSS_10;
                    }
                    if (isset($this->data['child'][SIMPLEPIE_NAMESPACE_RDF]['RDF'][0]['child'][SIMPLEPIE_NAMESPACE_RSS_090]['channel'])
                    || isset($this->data['child'][SIMPLEPIE_NAMESPACE_RDF]['RDF'][0]['child'][SIMPLEPIE_NAMESPACE_RSS_090]['image'])
                    || isset($this->data['child'][SIMPLEPIE_NAMESPACE_RDF]['RDF'][0]['child'][SIMPLEPIE_NAMESPACE_RSS_090]['item'])
                    || isset($this->data['child'][SIMPLEPIE_NAMESPACE_RDF]['RDF'][0]['child'][SIMPLEPIE_NAMESPACE_RSS_090]['textinput']))
                    {
                         $this->data['type'] &= SIMPLEPIE_TYPE_RSS_090;
                    }
               }
               elseif (isset($this->data['child'][SIMPLEPIE_NAMESPACE_RSS_20]['rss']))
               {
                    $this->data['type'] &= SIMPLEPIE_TYPE_RSS_ALL;
                    if (isset($this->data['child'][SIMPLEPIE_NAMESPACE_RSS_20]['rss'][0]['attribs']['']['version']))
                    {
                         switch (trim($this->data['child'][SIMPLEPIE_NAMESPACE_RSS_20]['rss'][0]['attribs']['']['version']))
                         {
                              case '0.91':
                                   $this->data['type'] &= SIMPLEPIE_TYPE_RSS_091;
                                   if (isset($this->data['child'][SIMPLEPIE_NAMESPACE_RSS_20]['rss'][0]['child'][SIMPLEPIE_NAMESPACE_RSS_20]['skiphours']['hour'][0]['data']))
                                   {
                                        switch (trim($this->data['child'][SIMPLEPIE_NAMESPACE_RSS_20]['rss'][0]['child'][SIMPLEPIE_NAMESPACE_RSS_20]['skiphours']['hour'][0]['data']))
                                        {
                                             case '0':
                                                  $this->data['type'] &= SIMPLEPIE_TYPE_RSS_091_NETSCAPE;
                                                  break;
                                             case '24':
                                                  $this->data['type'] &= SIMPLEPIE_TYPE_RSS_091_USERLAND;
                                                  break;
                                        }
                                   }
                                   break;
                              case '0.92':
                                   $this->data['type'] &= SIMPLEPIE_TYPE_RSS_092;
                                   break;
                              case '0.93':
                                   $this->data['type'] &= SIMPLEPIE_TYPE_RSS_093;
                                   break;
                              case '0.94':
                                   $this->data['type'] &= SIMPLEPIE_TYPE_RSS_094;
                                   break;
                              case '2.0':
                                   $this->data['type'] &= SIMPLEPIE_TYPE_RSS_20;
                                   break;
                         }
                    }
               }
               else
               {
                    $this->data['type'] = SIMPLEPIE_TYPE_NONE;
               }
          }
          return $this->data['type'];
     }
     
     public function subscribe_url()
     {
          if ($this->feed_url !== null)
          {
               return $this->sanitize($this->feed_url, SIMPLEPIE_CONSTRUCT_IRI);
          }
          else
          {
               return null;
          }
     }
     
     public function get_feed_tags($namespace, $tag)
     {
          $type = $this->get_type();
          if ($type & SIMPLEPIE_TYPE_ATOM_10)
          {
               if (isset($this->data['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['feed'][0]['child'][$namespace][$tag]))
               {
                    return $this->data['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['feed'][0]['child'][$namespace][$tag];
               }
          }
          if ($type & SIMPLEPIE_TYPE_ATOM_03)
          {
               if (isset($this->data['child'][SIMPLEPIE_NAMESPACE_ATOM_03]['feed'][0]['child'][$namespace][$tag]))
               {
                    return $this->data['child'][SIMPLEPIE_NAMESPACE_ATOM_03]['feed'][0]['child'][$namespace][$tag];
               }
          }
          if ($type & SIMPLEPIE_TYPE_RSS_RDF)
          {
               if (isset($this->data['child'][SIMPLEPIE_NAMESPACE_RDF]['RDF'][0]['child'][$namespace][$tag]))
               {
                    return $this->data['child'][SIMPLEPIE_NAMESPACE_RDF]['RDF'][0]['child'][$namespace][$tag];
               }
          }
          if ($type & SIMPLEPIE_TYPE_RSS_SYNDICATION)
          {
               if (isset($this->data['child'][SIMPLEPIE_NAMESPACE_RSS_20]['rss'][0]['child'][$namespace][$tag]))
               {
                    return $this->data['child'][SIMPLEPIE_NAMESPACE_RSS_20]['rss'][0]['child'][$namespace][$tag];
               }
          }
          return null;
     }
     
     public function get_channel_tags($namespace, $tag)
     {
          $type = $this->get_type();
          if ($type & SIMPLEPIE_TYPE_ATOM_ALL)
          {
               if ($return = $this->get_feed_tags($namespace, $tag))
               {
                    return $return;
               }
          }
          if ($type & SIMPLEPIE_TYPE_RSS_10)
          {
               if ($channel = $this->get_feed_tags(SIMPLEPIE_NAMESPACE_RSS_10, 'channel'))
               {
                    if (isset($channel[0]['child'][$namespace][$tag]))
                    {
                         return $channel[0]['child'][$namespace][$tag];
                    }
               }
          }
          if ($type & SIMPLEPIE_TYPE_RSS_090)
          {
               if ($channel = $this->get_feed_tags(SIMPLEPIE_NAMESPACE_RSS_090, 'channel'))
               {
                    if (isset($channel[0]['child'][$namespace][$tag]))
                    {
                         return $channel[0]['child'][$namespace][$tag];
                    }
               }
          }
          if ($type & SIMPLEPIE_TYPE_RSS_SYNDICATION)
          {
               if ($channel = $this->get_feed_tags(SIMPLEPIE_NAMESPACE_RSS_20, 'channel'))
               {
                    if (isset($channel[0]['child'][$namespace][$tag]))
                    {
                         return $channel[0]['child'][$namespace][$tag];
                    }
               }
          }
          return null;
     }
     
     public function get_image_tags($namespace, $tag)
     {
          $type = $this->get_type();
          if ($type & SIMPLEPIE_TYPE_RSS_10)
          {
               if ($image = $this->get_feed_tags(SIMPLEPIE_NAMESPACE_RSS_10, 'image'))
               {
                    if (isset($image[0]['child'][$namespace][$tag]))
                    {
                         return $image[0]['child'][$namespace][$tag];
                    }
               }
          }
          if ($type & SIMPLEPIE_TYPE_RSS_090)
          {
               if ($image = $this->get_feed_tags(SIMPLEPIE_NAMESPACE_RSS_090, 'image'))
               {
                    if (isset($image[0]['child'][$namespace][$tag]))
                    {
                         return $image[0]['child'][$namespace][$tag];
                    }
               }
          }
          if ($type & SIMPLEPIE_TYPE_RSS_SYNDICATION)
          {
               if ($image = $this->get_channel_tags(SIMPLEPIE_NAMESPACE_RSS_20, 'image'))
               {
                    if (isset($image[0]['child'][$namespace][$tag]))
                    {
                         return $image[0]['child'][$namespace][$tag];
                    }
               }
          }
          return null;
     }
     
     public function get_base($element = array())
     {
          if (!($this->get_type() & SIMPLEPIE_TYPE_RSS_SYNDICATION) && !empty($element['xml_base_explicit']) && isset($element['xml_base']))
          {
               return $element['xml_base'];
          }
          elseif ($this->get_link() !== null)
          {
               return $this->get_link();
          }
          else
          {
               return $this->subscribe_url();
          }
     }
     
     public function sanitize($data, $type, $base = '')
     {
          return $this->sanitize->sanitize($data, $type, $base);
     }
     
     public function get_title()
     {
          if ($return = $this->get_channel_tags(SIMPLEPIE_NAMESPACE_ATOM_10, 'title'))
          {
               return $this->sanitize($return[0]['data'], $this->registry->call('Misc', 'atom_10_construct_type', array($return[0]['attribs'])), $this->get_base($return[0]));
          }
          elseif ($return = $this->get_channel_tags(SIMPLEPIE_NAMESPACE_ATOM_03, 'title'))
          {
               return $this->sanitize($return[0]['data'], $this->registry->call('Misc', 'atom_03_construct_type', array($return[0]['attribs'])), $this->get_base($return[0]));
          }
          elseif ($return = $this->get_channel_tags(SIMPLEPIE_NAMESPACE_RSS_10, 'title'))
          {
               return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_MAYBE_HTML, $this->get_base($return[0]));
          }
          elseif ($return = $this->get_channel_tags(SIMPLEPIE_NAMESPACE_RSS_090, 'title'))
          {
               return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_MAYBE_HTML, $this->get_base($return[0]));
          }
          elseif ($return = $this->get_channel_tags(SIMPLEPIE_NAMESPACE_RSS_20, 'title'))
          {
               return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_MAYBE_HTML, $this->get_base($return[0]));
          }
          elseif ($return = $this->get_channel_tags(SIMPLEPIE_NAMESPACE_DC_11, 'title'))
          {
               return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
          }
          elseif ($return = $this->get_channel_tags(SIMPLEPIE_NAMESPACE_DC_10, 'title'))
          {
               return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
          }
          else
          {
               return null;
          }
     }
     
     public function get_category($key = 0)
     {
          $categories = $this->get_categories();
          if (isset($categories[$key]))
          {
               return $categories[$key];
          }
          else
          {
               return null;
          }
     }
     
     public function get_categories()
     {
          $categories = array();
          foreach ((array) $this->get_channel_tags(SIMPLEPIE_NAMESPACE_ATOM_10, 'category') as $category)
          {
               $term = null;
               $scheme = null;
               $label = null;
               if (isset($category['attribs']['']['term']))
               {
                    $term = $this->sanitize($category['attribs']['']['term'], SIMPLEPIE_CONSTRUCT_TEXT);
               }
               if (isset($category['attribs']['']['scheme']))
               {
                    $scheme = $this->sanitize($category['attribs']['']['scheme'], SIMPLEPIE_CONSTRUCT_TEXT);
               }
               if (isset($category['attribs']['']['label']))
               {
                    $label = $this->sanitize($category['attribs']['']['label'], SIMPLEPIE_CONSTRUCT_TEXT);
               }
               $categories[] = $this->registry->create('Category', array($term, $scheme, $label));
          }
          foreach ((array) $this->get_channel_tags(SIMPLEPIE_NAMESPACE_RSS_20, 'category') as $category)
          {
               // This is really the label, but keep this as the term also for BC.
               // Label will also work on retrieving because that falls back to term.
               $term = $this->sanitize($category['data'], SIMPLEPIE_CONSTRUCT_TEXT);
               if (isset($category['attribs']['']['domain']))
               {
                    $scheme = $this->sanitize($category['attribs']['']['domain'], SIMPLEPIE_CONSTRUCT_TEXT);
               }
               else
               {
                    $scheme = null;
               }
               $categories[] = $this->registry->create('Category', array($term, $scheme, null));
          }
          foreach ((array) $this->get_channel_tags(SIMPLEPIE_NAMESPACE_DC_11, 'subject') as $category)
          {
               $categories[] = $this->registry->create('Category', array($this->sanitize($category['data'], SIMPLEPIE_CONSTRUCT_TEXT), null, null));
          }
          foreach ((array) $this->get_channel_tags(SIMPLEPIE_NAMESPACE_DC_10, 'subject') as $category)
          {
               $categories[] = $this->registry->create('Category', array($this->sanitize($category['data'], SIMPLEPIE_CONSTRUCT_TEXT), null, null));
          }
          if (!empty($categories))
          {
               return array_unique($categories);
          }
          else
          {
               return null;
          }
     }
     
     public function get_author($key = 0)
     {
          $authors = $this->get_authors();
          if (isset($authors[$key]))
          {
               return $authors[$key];
          }
          else
          {
               return null;
          }
     }
     
     public function get_authors()
     {
          $authors = array();
          foreach ((array) $this->get_channel_tags(SIMPLEPIE_NAMESPACE_ATOM_10, 'author') as $author)
          {
               $name = null;
               $uri = null;
               $email = null;
               if (isset($author['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['name'][0]['data']))
               {
                    $name = $this->sanitize($author['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['name'][0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
               }
               if (isset($author['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['uri'][0]['data']))
               {
                    $uri = $this->sanitize($author['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['uri'][0]['data'], SIMPLEPIE_CONSTRUCT_IRI, $this->get_base($author['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['uri'][0]));
               }
               if (isset($author['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['email'][0]['data']))
               {
                    $email = $this->sanitize($author['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['email'][0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
               }
               if ($name !== null || $email !== null || $uri !== null)
               {
                    $authors[] = $this->registry->create('Author', array($name, $uri, $email));
               }
          }
          if ($author = $this->get_channel_tags(SIMPLEPIE_NAMESPACE_ATOM_03, 'author'))
          {
               $name = null;
               $url = null;
               $email = null;
               if (isset($author[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_03]['name'][0]['data']))
               {
                    $name = $this->sanitize($author[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_03]['name'][0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
               }
               if (isset($author[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_03]['url'][0]['data']))
               {
                    $url = $this->sanitize($author[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_03]['url'][0]['data'], SIMPLEPIE_CONSTRUCT_IRI, $this->get_base($author[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_03]['url'][0]));
               }
               if (isset($author[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_03]['email'][0]['data']))
               {
                    $email = $this->sanitize($author[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_03]['email'][0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
               }
               if ($name !== null || $email !== null || $url !== null)
               {
                    $authors[] = $this->registry->create('Author', array($name, $url, $email));
               }
          }
          foreach ((array) $this->get_channel_tags(SIMPLEPIE_NAMESPACE_DC_11, 'creator') as $author)
          {
               $authors[] = $this->registry->create('Author', array($this->sanitize($author['data'], SIMPLEPIE_CONSTRUCT_TEXT), null, null));
          }
          foreach ((array) $this->get_channel_tags(SIMPLEPIE_NAMESPACE_DC_10, 'creator') as $author)
          {
               $authors[] = $this->registry->create('Author', array($this->sanitize($author['data'], SIMPLEPIE_CONSTRUCT_TEXT), null, null));
          }
          foreach ((array) $this->get_channel_tags(SIMPLEPIE_NAMESPACE_ITUNES, 'author') as $author)
          {
               $authors[] = $this->registry->create('Author', array($this->sanitize($author['data'], SIMPLEPIE_CONSTRUCT_TEXT), null, null));
          }
          if (!empty($authors))
          {
               return array_unique($authors);
          }
          else
          {
               return null;
          }
     }
     
     public function get_contributor($key = 0)
     {
          $contributors = $this->get_contributors();
          if (isset($contributors[$key]))
          {
               return $contributors[$key];
          }
          else
          {
               return null;
          }
     }
     
     public function get_contributors()
     {
          $contributors = array();
          foreach ((array) $this->get_channel_tags(SIMPLEPIE_NAMESPACE_ATOM_10, 'contributor') as $contributor)
          {
               $name = null;
               $uri = null;
               $email = null;
               if (isset($contributor['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['name'][0]['data']))
               {
                    $name = $this->sanitize($contributor['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['name'][0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
               }
               if (isset($contributor['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['uri'][0]['data']))
               {
                    $uri = $this->sanitize($contributor['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['uri'][0]['data'], SIMPLEPIE_CONSTRUCT_IRI, $this->get_base($contributor['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['uri'][0]));
               }
               if (isset($contributor['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['email'][0]['data']))
               {
                    $email = $this->sanitize($contributor['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['email'][0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
               }
               if ($name !== null || $email !== null || $uri !== null)
               {
                    $contributors[] = $this->registry->create('Author', array($name, $uri, $email));
               }
          }
          foreach ((array) $this->get_channel_tags(SIMPLEPIE_NAMESPACE_ATOM_03, 'contributor') as $contributor)
          {
               $name = null;
               $url = null;
               $email = null;
               if (isset($contributor['child'][SIMPLEPIE_NAMESPACE_ATOM_03]['name'][0]['data']))
               {
                    $name = $this->sanitize($contributor['child'][SIMPLEPIE_NAMESPACE_ATOM_03]['name'][0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
               }
               if (isset($contributor['child'][SIMPLEPIE_NAMESPACE_ATOM_03]['url'][0]['data']))
               {
                    $url = $this->sanitize($contributor['child'][SIMPLEPIE_NAMESPACE_ATOM_03]['url'][0]['data'], SIMPLEPIE_CONSTRUCT_IRI, $this->get_base($contributor['child'][SIMPLEPIE_NAMESPACE_ATOM_03]['url'][0]));
               }
               if (isset($contributor['child'][SIMPLEPIE_NAMESPACE_ATOM_03]['email'][0]['data']))
               {
                    $email = $this->sanitize($contributor['child'][SIMPLEPIE_NAMESPACE_ATOM_03]['email'][0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
               }
               if ($name !== null || $email !== null || $url !== null)
               {
                    $contributors[] = $this->registry->create('Author', array($name, $url, $email));
               }
          }
          if (!empty($contributors))
          {
               return array_unique($contributors);
          }
          else
          {
               return null;
          }
     }
     
     public function get_link($key = 0, $rel = 'alternate')
     {
          $links = $this->get_links($rel);
          if (isset($links[$key]))
          {
               return $links[$key];
          }
          else
          {
               return null;
          }
     }
     
     public function get_permalink()
     {
          return $this->get_link(0);
     }
     
     public function get_links($rel = 'alternate')
     {
          if (!isset($this->data['links']))
          {
               $this->data['links'] = array();
               if ($links = $this->get_channel_tags(SIMPLEPIE_NAMESPACE_ATOM_10, 'link'))
               {
                    foreach ($links as $link)
                    {
                         if (isset($link['attribs']['']['href']))
                         {
                              $link_rel = (isset($link['attribs']['']['rel'])) ? $link['attribs']['']['rel'] : 'alternate';
                              $this->data['links'][$link_rel][] = $this->sanitize($link['attribs']['']['href'], SIMPLEPIE_CONSTRUCT_IRI, $this->get_base($link));
                         }
                    }
               }
               if ($links = $this->get_channel_tags(SIMPLEPIE_NAMESPACE_ATOM_03, 'link'))
               {
                    foreach ($links as $link)
                    {
                         if (isset($link['attribs']['']['href']))
                         {
                              $link_rel = (isset($link['attribs']['']['rel'])) ? $link['attribs']['']['rel'] : 'alternate';
                              $this->data['links'][$link_rel][] = $this->sanitize($link['attribs']['']['href'], SIMPLEPIE_CONSTRUCT_IRI, $this->get_base($link));
                         }
                    }
               }
               if ($links = $this->get_channel_tags(SIMPLEPIE_NAMESPACE_RSS_10, 'link'))
               {
                    $this->data['links']['alternate'][] = $this->sanitize($links[0]['data'], SIMPLEPIE_CONSTRUCT_IRI, $this->get_base($links[0]));
               }
               if ($links = $this->get_channel_tags(SIMPLEPIE_NAMESPACE_RSS_090, 'link'))
               {
                    $this->data['links']['alternate'][] = $this->sanitize($links[0]['data'], SIMPLEPIE_CONSTRUCT_IRI, $this->get_base($links[0]));
               }
               if ($links = $this->get_channel_tags(SIMPLEPIE_NAMESPACE_RSS_20, 'link'))
               {
                    $this->data['links']['alternate'][] = $this->sanitize($links[0]['data'], SIMPLEPIE_CONSTRUCT_IRI, $this->get_base($links[0]));
               }
               $keys = array_keys($this->data['links']);
               foreach ($keys as $key)
               {
                    if ($this->registry->call('Misc', 'is_isegment_nz_nc', array($key)))
                    {
                         if (isset($this->data['links'][SIMPLEPIE_IANA_LINK_RELATIONS_REGISTRY . $key]))
                         {
                              $this->data['links'][SIMPLEPIE_IANA_LINK_RELATIONS_REGISTRY . $key] = array_merge($this->data['links'][$key], $this->data['links'][SIMPLEPIE_IANA_LINK_RELATIONS_REGISTRY . $key]);
                              $this->data['links'][$key] =& $this->data['links'][SIMPLEPIE_IANA_LINK_RELATIONS_REGISTRY . $key];
                         }
                         else
                         {
                              $this->data['links'][SIMPLEPIE_IANA_LINK_RELATIONS_REGISTRY . $key] =& $this->data['links'][$key];
                         }
                    }
                    elseif (substr($key, 0, 41) === SIMPLEPIE_IANA_LINK_RELATIONS_REGISTRY)
                    {
                         $this->data['links'][substr($key, 41)] =& $this->data['links'][$key];
                    }
                    $this->data['links'][$key] = array_unique($this->data['links'][$key]);
               }
          }
          if (isset($this->data['links'][$rel]))
          {
               return $this->data['links'][$rel];
          }
          else
          {
               return null;
          }
     }
     public function get_all_discovered_feeds()
     {
          return $this->all_discovered_feeds;
     }
     
     public function get_description()
     {
          if ($return = $this->get_channel_tags(SIMPLEPIE_NAMESPACE_ATOM_10, 'subtitle'))
          {
               return $this->sanitize($return[0]['data'], $this->registry->call('Misc', 'atom_10_construct_type', array($return[0]['attribs'])), $this->get_base($return[0]));
          }
          elseif ($return = $this->get_channel_tags(SIMPLEPIE_NAMESPACE_ATOM_03, 'tagline'))
          {
               return $this->sanitize($return[0]['data'], $this->registry->call('Misc', 'atom_03_construct_type', array($return[0]['attribs'])), $this->get_base($return[0]));
          }
          elseif ($return = $this->get_channel_tags(SIMPLEPIE_NAMESPACE_RSS_10, 'description'))
          {
               return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_MAYBE_HTML, $this->get_base($return[0]));
          }
          elseif ($return = $this->get_channel_tags(SIMPLEPIE_NAMESPACE_RSS_090, 'description'))
          {
               return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_MAYBE_HTML, $this->get_base($return[0]));
          }
          elseif ($return = $this->get_channel_tags(SIMPLEPIE_NAMESPACE_RSS_20, 'description'))
          {
               return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_HTML, $this->get_base($return[0]));
          }
          elseif ($return = $this->get_channel_tags(SIMPLEPIE_NAMESPACE_DC_11, 'description'))
          {
               return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
          }
          elseif ($return = $this->get_channel_tags(SIMPLEPIE_NAMESPACE_DC_10, 'description'))
          {
               return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
          }
          elseif ($return = $this->get_channel_tags(SIMPLEPIE_NAMESPACE_ITUNES, 'summary'))
          {
               return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_HTML, $this->get_base($return[0]));
          }
          elseif ($return = $this->get_channel_tags(SIMPLEPIE_NAMESPACE_ITUNES, 'subtitle'))
          {
               return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_HTML, $this->get_base($return[0]));
          }
          else
          {
               return null;
          }
     }
     
     public function get_copyright()
     {
          if ($return = $this->get_channel_tags(SIMPLEPIE_NAMESPACE_ATOM_10, 'rights'))
          {
               return $this->sanitize($return[0]['data'], $this->registry->call('Misc', 'atom_10_construct_type', array($return[0]['attribs'])), $this->get_base($return[0]));
          }
          elseif ($return = $this->get_channel_tags(SIMPLEPIE_NAMESPACE_ATOM_03, 'copyright'))
          {
               return $this->sanitize($return[0]['data'], $this->registry->call('Misc', 'atom_03_construct_type', array($return[0]['attribs'])), $this->get_base($return[0]));
          }
          elseif ($return = $this->get_channel_tags(SIMPLEPIE_NAMESPACE_RSS_20, 'copyright'))
          {
               return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
          }
          elseif ($return = $this->get_channel_tags(SIMPLEPIE_NAMESPACE_DC_11, 'rights'))
          {
               return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
          }
          elseif ($return = $this->get_channel_tags(SIMPLEPIE_NAMESPACE_DC_10, 'rights'))
          {
               return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
          }
          else
          {
               return null;
          }
     }
     
     public function get_language()
     {
          if ($return = $this->get_channel_tags(SIMPLEPIE_NAMESPACE_RSS_20, 'language'))
          {
               return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
          }
          elseif ($return = $this->get_channel_tags(SIMPLEPIE_NAMESPACE_DC_11, 'language'))
          {
               return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
          }
          elseif ($return = $this->get_channel_tags(SIMPLEPIE_NAMESPACE_DC_10, 'language'))
          {
               return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
          }
          elseif (isset($this->data['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['feed'][0]['xml_lang']))
          {
               return $this->sanitize($this->data['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['feed'][0]['xml_lang'], SIMPLEPIE_CONSTRUCT_TEXT);
          }
          elseif (isset($this->data['child'][SIMPLEPIE_NAMESPACE_ATOM_03]['feed'][0]['xml_lang']))
          {
               return $this->sanitize($this->data['child'][SIMPLEPIE_NAMESPACE_ATOM_03]['feed'][0]['xml_lang'], SIMPLEPIE_CONSTRUCT_TEXT);
          }
          elseif (isset($this->data['child'][SIMPLEPIE_NAMESPACE_RDF]['RDF'][0]['xml_lang']))
          {
               return $this->sanitize($this->data['child'][SIMPLEPIE_NAMESPACE_RDF]['RDF'][0]['xml_lang'], SIMPLEPIE_CONSTRUCT_TEXT);
          }
          elseif (isset($this->data['headers']['content-language']))
          {
               return $this->sanitize($this->data['headers']['content-language'], SIMPLEPIE_CONSTRUCT_TEXT);
          }
          else
          {
               return null;
          }
     }
     
     public function get_latitude()
     {
          if ($return = $this->get_channel_tags(SIMPLEPIE_NAMESPACE_W3C_BASIC_GEO, 'lat'))
          {
               return (float) $return[0]['data'];
          }
          elseif (($return = $this->get_channel_tags(SIMPLEPIE_NAMESPACE_GEORSS, 'point')) && preg_match('/^((?:-)?[0-9]+(?:\.[0-9]+)) ((?:-)?[0-9]+(?:\.[0-9]+))$/', trim($return[0]['data']), $match))
          {
               return (float) $match[1];
          }
          else
          {
               return null;
          }
     }
     
     public function get_longitude()
     {
          if ($return = $this->get_channel_tags(SIMPLEPIE_NAMESPACE_W3C_BASIC_GEO, 'long'))
          {
               return (float) $return[0]['data'];
          }
          elseif ($return = $this->get_channel_tags(SIMPLEPIE_NAMESPACE_W3C_BASIC_GEO, 'lon'))
          {
               return (float) $return[0]['data'];
          }
          elseif (($return = $this->get_channel_tags(SIMPLEPIE_NAMESPACE_GEORSS, 'point')) && preg_match('/^((?:-)?[0-9]+(?:\.[0-9]+)) ((?:-)?[0-9]+(?:\.[0-9]+))$/', trim($return[0]['data']), $match))
          {
               return (float) $match[2];
          }
          else
          {
               return null;
          }
     }
     
     public function get_image_title()
     {
          if ($return = $this->get_image_tags(SIMPLEPIE_NAMESPACE_RSS_10, 'title'))
          {
               return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
          }
          elseif ($return = $this->get_image_tags(SIMPLEPIE_NAMESPACE_RSS_090, 'title'))
          {
               return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
          }
          elseif ($return = $this->get_image_tags(SIMPLEPIE_NAMESPACE_RSS_20, 'title'))
          {
               return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
          }
          elseif ($return = $this->get_image_tags(SIMPLEPIE_NAMESPACE_DC_11, 'title'))
          {
               return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
          }
          elseif ($return = $this->get_image_tags(SIMPLEPIE_NAMESPACE_DC_10, 'title'))
          {
               return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_TEXT);
          }
          else
          {
               return null;
          }
     }
     
     public function get_image_url()
     {
          if ($return = $this->get_channel_tags(SIMPLEPIE_NAMESPACE_ITUNES, 'image'))
          {
               return $this->sanitize($return[0]['attribs']['']['href'], SIMPLEPIE_CONSTRUCT_IRI);
          }
          elseif ($return = $this->get_channel_tags(SIMPLEPIE_NAMESPACE_ATOM_10, 'logo'))
          {
               return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_IRI, $this->get_base($return[0]));
          }
          elseif ($return = $this->get_channel_tags(SIMPLEPIE_NAMESPACE_ATOM_10, 'icon'))
          {
               return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_IRI, $this->get_base($return[0]));
          }
          elseif ($return = $this->get_image_tags(SIMPLEPIE_NAMESPACE_RSS_10, 'url'))
          {
               return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_IRI, $this->get_base($return[0]));
          }
          elseif ($return = $this->get_image_tags(SIMPLEPIE_NAMESPACE_RSS_090, 'url'))
          {
               return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_IRI, $this->get_base($return[0]));
          }
          elseif ($return = $this->get_image_tags(SIMPLEPIE_NAMESPACE_RSS_20, 'url'))
          {
               return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_IRI, $this->get_base($return[0]));
          }
          else
          {
               return null;
          }
     }
     
     public function get_image_link()
     {
          if ($return = $this->get_image_tags(SIMPLEPIE_NAMESPACE_RSS_10, 'link'))
          {
               return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_IRI, $this->get_base($return[0]));
          }
          elseif ($return = $this->get_image_tags(SIMPLEPIE_NAMESPACE_RSS_090, 'link'))
          {
               return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_IRI, $this->get_base($return[0]));
          }
          elseif ($return = $this->get_image_tags(SIMPLEPIE_NAMESPACE_RSS_20, 'link'))
          {
               return $this->sanitize($return[0]['data'], SIMPLEPIE_CONSTRUCT_IRI, $this->get_base($return[0]));
          }
          else
          {
               return null;
          }
     }
     
     public function get_image_width()
     {
          if ($return = $this->get_image_tags(SIMPLEPIE_NAMESPACE_RSS_20, 'width'))
          {
               return round($return[0]['data']);
          }
          elseif ($this->get_type() & SIMPLEPIE_TYPE_RSS_SYNDICATION && $this->get_image_tags(SIMPLEPIE_NAMESPACE_RSS_20, 'url'))
          {
               return 88.0;
          }
          else
          {
               return null;
          }
     }
     
     public function get_image_height()
     {
          if ($return = $this->get_image_tags(SIMPLEPIE_NAMESPACE_RSS_20, 'height'))
          {
               return round($return[0]['data']);
          }
          elseif ($this->get_type() & SIMPLEPIE_TYPE_RSS_SYNDICATION && $this->get_image_tags(SIMPLEPIE_NAMESPACE_RSS_20, 'url'))
          {
               return 31.0;
          }
          else
          {
               return null;
          }
     }
     
     public function get_item_quantity($max = 0)
     {
          $max = (int) $max;
          $qty = count($this->get_items());
          if ($max === 0)
          {
               return $qty;
          }
          else
          {
               return ($qty > $max) ? $max : $qty;
          }
     }
     
     public function get_item($key = 0)
     {
          $items = $this->get_items();
          if (isset($items[$key]))
          {
               return $items[$key];
          }
          else
          {
               return null;
          }
     }
     
     public function get_items($start = 0, $end = 0)
     {
          if (!isset($this->data['items']))
          {
               if (!empty($this->multifeed_objects))
               {
                    $this->data['items'] = SimplePie::merge_items($this->multifeed_objects, $start, $end, $this->item_limit);
               }
               else
               {
                    $this->data['items'] = array();
                    if ($items = $this->get_feed_tags(SIMPLEPIE_NAMESPACE_ATOM_10, 'entry'))
                    {
                         $keys = array_keys($items);
                         foreach ($keys as $key)
                         {
                              $this->data['items'][] = $this->registry->create('Item', array($this, $items[$key]));
                         }
                    }
                    if ($items = $this->get_feed_tags(SIMPLEPIE_NAMESPACE_ATOM_03, 'entry'))
                    {
                         $keys = array_keys($items);
                         foreach ($keys as $key)
                         {
                              $this->data['items'][] = $this->registry->create('Item', array($this, $items[$key]));
                         }
                    }
                    if ($items = $this->get_feed_tags(SIMPLEPIE_NAMESPACE_RSS_10, 'item'))
                    {
                         $keys = array_keys($items);
                         foreach ($keys as $key)
                         {
                              $this->data['items'][] = $this->registry->create('Item', array($this, $items[$key]));
                         }
                    }
                    if ($items = $this->get_feed_tags(SIMPLEPIE_NAMESPACE_RSS_090, 'item'))
                    {
                         $keys = array_keys($items);
                         foreach ($keys as $key)
                         {
                              $this->data['items'][] = $this->registry->create('Item', array($this, $items[$key]));
                         }
                    }
                    if ($items = $this->get_channel_tags(SIMPLEPIE_NAMESPACE_RSS_20, 'item'))
                    {
                         $keys = array_keys($items);
                         foreach ($keys as $key)
                         {
                              $this->data['items'][] = $this->registry->create('Item', array($this, $items[$key]));
                         }
                    }
               }
          }
          if (!empty($this->data['items']))
          {
               // If we want to order it by date, check if all items have a date, and then sort it
               if ($this->order_by_date && empty($this->multifeed_objects))
               {
                    if (!isset($this->data['ordered_items']))
                    {
                         $do_sort = true;
                         foreach ($this->data['items'] as $item)
                         {
                              if (!$item->get_date('U'))
                              {
                                   $do_sort = false;
                                   break;
                              }
                         }
                         $item = null;
                         $this->data['ordered_items'] = $this->data['items'];
                         if ($do_sort)
                         {
                              usort($this->data['ordered_items'], array(get_class($this), 'sort_items'));
                         }
                    }
                    $items = $this->data['ordered_items'];
               }
               else
               {
                    $items = $this->data['items'];
               }
               // Slice the data as desired
               if ($end === 0)
               {
                    return array_slice($items, $start);
               }
               else
               {
                    return array_slice($items, $start, $end);
               }
          }
          else
          {
               return array();
          }
     }
     
     public function set_favicon_handler($page = false, $qs = 'i')
     {
          $level = defined('E_USER_DEPRECATED') ? E_USER_DEPRECATED : E_USER_WARNING;
          trigger_error('Favicon handling has been removed, please use your own handling', $level);
          return false;
     }
     
     public function get_favicon()
     {
          $level = defined('E_USER_DEPRECATED') ? E_USER_DEPRECATED : E_USER_WARNING;
          trigger_error('Favicon handling has been removed, please use your own handling', $level);
          if (($url = $this->get_link()) !== null)
          {
               return 'http://g.etfv.co/' . urlencode($url);
          }
          return false;
     }
     
     public function __call($method, $args)
     {
          if (strpos($method, 'subscribe_') === 0)
          {
               $level = defined('E_USER_DEPRECATED') ? E_USER_DEPRECATED : E_USER_WARNING;
               trigger_error('subscribe_*() has been deprecated, implement the callback yourself', $level);
               return '';
          }
          if ($method === 'enable_xml_dump')
          {
               $level = defined('E_USER_DEPRECATED') ? E_USER_DEPRECATED : E_USER_WARNING;
               trigger_error('enable_xml_dump() has been deprecated, use get_raw_data() instead', $level);
               return false;
          }
          $class = get_class($this);
          $trace = debug_backtrace();
          $file = $trace[0]['file'];
          $line = $trace[0]['line'];
          trigger_error("Call to undefined method $class::$method() in $file on line $line", E_USER_ERROR);
     }
     
     public static function sort_items($a, $b)
     {
          return $a->get_date('U') <= $b->get_date('U');
     }
     
     public static function merge_items($urls, $start = 0, $end = 0, $limit = 0)
     {
          if (is_array($urls) && sizeof($urls) > 0)
          {
               $items = array();
               foreach ($urls as $arg)
               {
                    if ($arg instanceof SimplePie)
                    {
                         $items = array_merge($items, $arg->get_items(0, $limit));
                    }
                    else
                    {
                         trigger_error('Arguments must be SimplePie objects', E_USER_WARNING);
                    }
               }
               $do_sort = true;
               foreach ($items as $item)
               {
                    if (!$item->get_date('U'))
                    {
                         $do_sort = false;
                         break;
                    }
               }
               $item = null;
               if ($do_sort)
               {
                    usort($items, array(get_class($urls[0]), 'sort_items'));
               }
               if ($end === 0)
               {
                    return array_slice($items, $start);
               }
               else
               {
                    return array_slice($items, $start, $end);
               }
          }
          else
          {
               trigger_error('Cannot merge zero SimplePie objects', E_USER_WARNING);
               return array();
          }
     }
}
class SimplePie_Author
{
     
     var $name;
     
     var $link;
     
     var $email;
     
     public function __construct($name = null, $link = null, $email = null)
     {
          $this->name = $name;
          $this->link = $link;
          $this->email = $email;
     }
     
     public function __toString()
     {
          // There is no $this->data here
          return md5(serialize($this));
     }
     
     public function get_name()
     {
          if ($this->name !== null)
          {
               return $this->name;
          }
          else
          {
               return null;
          }
     }
     
     public function get_link()
     {
          if ($this->link !== null)
          {
               return $this->link;
          }
          else
          {
               return null;
          }
     }
     
     public function get_email()
     {
          if ($this->email !== null)
          {
               return $this->email;
          }
          else
          {
               return null;
          }
     }
}
interface SimplePie_Cache_Base
{
     
     const TYPE_FEED = 'spc';
     
     const TYPE_IMAGE = 'spi';
     
     public function __construct($location, $name, $type);
     
     public function save($data);
     
     public function load();
     
     public function mtime();
     
     public function touch();
     
     public function unlink();
}
abstract class SimplePie_Cache_DB implements SimplePie_Cache_Base
{
     
     protected static function prepare_simplepie_object_for_cache($data)
     {
          $items = $data->get_items();
          $items_by_id = array();
          if (!empty($items))
          {
               foreach ($items as $item)
               {
                    $items_by_id[$item->get_id()] = $item;
               }
               if (count($items_by_id) !== count($items))
               {
                    $items_by_id = array();
                    foreach ($items as $item)
                    {
                         $items_by_id[$item->get_id(true)] = $item;
                    }
               }
               if (isset($data->data['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['feed'][0]))
               {
                    $channel =& $data->data['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['feed'][0];
               }
               elseif (isset($data->data['child'][SIMPLEPIE_NAMESPACE_ATOM_03]['feed'][0]))
               {
                    $channel =& $data->data['child'][SIMPLEPIE_NAMESPACE_ATOM_03]['feed'][0];
               }
               elseif (isset($data->data['child'][SIMPLEPIE_NAMESPACE_RDF]['RDF'][0]))
               {
                    $channel =& $data->data['child'][SIMPLEPIE_NAMESPACE_RDF]['RDF'][0];
               }
               elseif (isset($data->data['child'][SIMPLEPIE_NAMESPACE_RSS_20]['rss'][0]['child'][SIMPLEPIE_NAMESPACE_RSS_20]['channel'][0]))
               {
                    $channel =& $data->data['child'][SIMPLEPIE_NAMESPACE_RSS_20]['rss'][0]['child'][SIMPLEPIE_NAMESPACE_RSS_20]['channel'][0];
               }
               else
               {
                    $channel = null;
               }
               if ($channel !== null)
               {
                    if (isset($channel['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['entry']))
                    {
                         unset($channel['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['entry']);
                    }
                    if (isset($channel['child'][SIMPLEPIE_NAMESPACE_ATOM_03]['entry']))
                    {
                         unset($channel['child'][SIMPLEPIE_NAMESPACE_ATOM_03]['entry']);
                    }
                    if (isset($channel['child'][SIMPLEPIE_NAMESPACE_RSS_10]['item']))
                    {
                         unset($channel['child'][SIMPLEPIE_NAMESPACE_RSS_10]['item']);
                    }
                    if (isset($channel['child'][SIMPLEPIE_NAMESPACE_RSS_090]['item']))
                    {
                         unset($channel['child'][SIMPLEPIE_NAMESPACE_RSS_090]['item']);
                    }
                    if (isset($channel['child'][SIMPLEPIE_NAMESPACE_RSS_20]['item']))
                    {
                         unset($channel['child'][SIMPLEPIE_NAMESPACE_RSS_20]['item']);
                    }
               }
               if (isset($data->data['items']))
               {
                    unset($data->data['items']);
               }
               if (isset($data->data['ordered_items']))
               {
                    unset($data->data['ordered_items']);
               }
          }
          return array(serialize($data->data), $items_by_id);
     }
}
class SimplePie_Cache_File implements SimplePie_Cache_Base
{
     
     protected $location;
     
     protected $filename;
     
     protected $extension;
     
     protected $name;
     
     public function __construct($location, $name, $type)
     {
          $this->location = $location;
          $this->filename = $name;
          $this->extension = $type;
          $this->name = "$this->location/$this->filename.$this->extension";
     }
     
     public function save($data)
     {
          if (file_exists($this->name) && is_writeable($this->name) || file_exists($this->location) && is_writeable($this->location))
          {
               if ($data instanceof SimplePie)
               {
                    $data = $data->data;
               }
               $data = serialize($data);
               return (bool) file_put_contents($this->name, $data);
          }
          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_Cache_Memcache implements SimplePie_Cache_Base
{
     
     protected $cache;
     
     protected $options;
     
     protected $name;
     
     public function __construct($location, $name, $type)
     {
          $this->options = array(
               'host' => '127.0.0.1',
               'port' => 11211,
               'extras' => array(
                    'timeout' => 3600, // one hour
                    'prefix' => 'simplepie_',
               ),
          );
          $parsed = SimplePie_Cache::parse_URL($location);
          $this->options['host'] = empty($parsed['host']) ? $this->options['host'] : $parsed['host'];
          $this->options['port'] = empty($parsed['port']) ? $this->options['port'] : $parsed['port'];
          $this->options['extras'] = array_merge($this->options['extras'], $parsed['extras']);
          $this->name = $this->options['extras']['prefix'] . md5("$name:$type");
          $this->cache = new Memcache();
          $this->cache->addServer($this->options['host'], (int) $this->options['port']);
     }
     
     public function save($data)
     {
          if ($data instanceof SimplePie)
          {
               $data = $data->data;
          }
          return $this->cache->set($this->name, serialize($data), MEMCACHE_COMPRESSED, (int) $this->options['extras']['timeout']);
     }
     
     public function load()
     {
          $data = $this->cache->get($this->name);
          if ($data !== false)
          {
               return unserialize($data);
          }
          return false;
     }
     
     public function mtime()
     {
          $data = $this->cache->get($this->name);
          if ($data !== false)
          {
               // essentially ignore the mtime because Memcache expires on it's own
               return time();
          }
          return false;
     }
     
     public function touch()
     {
          $data = $this->cache->get($this->name);
          if ($data !== false)
          {
               return $this->cache->set($this->name, $data, MEMCACHE_COMPRESSED, (int) $this->duration);
          }
          return false;
     }
     
     public function unlink()
     {
          return $this->cache->delete($this->name, 0);
     }
}
class SimplePie_Cache_MySQL extends SimplePie_Cache_DB
{
     
     protected $mysql;
     
     protected $options;
     
     protected $id;
     
     public function __construct($location, $name, $type)
     {
          $this->options = array(
               'user' => null,
               'pass' => null,
               'host' => '127.0.0.1',
               'port' => '3306',
               'path' => '',
               'extras' => array(
                    'prefix' => '',
               ),
          );
          $this->options = array_merge_recursive($this->options, SimplePie_Cache::parse_URL($location));
          // Path is prefixed with a "/"
          $this->options['dbname'] = substr($this->options['path'], 1);
          try
          {
               $this->mysql = new PDO("mysql:dbname={$this->options['dbname']};host={$this->options['host']};port={$this->options['port']}", $this->options['user'], $this->options['pass'], array(PDO::MYSQL_ATTR_INIT_COMMAND => 'SET NAMES utf8'));
          }
          catch (PDOException $e)
          {
               $this->mysql = null;
               return;
          }
          $this->id = $name . $type;
          if (!$query = $this->mysql->query('SHOW TABLES'))
          {
               $this->mysql = null;
               return;
          }
          $db = array();
          while ($row = $query->fetchColumn())
          {
               $db[] = $row;
          }
          if (!in_array($this->options['extras']['prefix'] . 'cache_data', $db))
          {
               $query = $this->mysql->exec('CREATE TABLE `' . $this->options['extras']['prefix'] . 'cache_data` (`id` TEXT CHARACTER SET utf8 NOT NULL, `items` SMALLINT NOT NULL DEFAULT 0, `data` BLOB NOT NULL, `mtime` INT UNSIGNED NOT NULL, UNIQUE (`id`(125)))');
               if ($query === false)
               {
                    $this->mysql = null;
               }
          }
          if (!in_array($this->options['extras']['prefix'] . 'items', $db))
          {
               $query = $this->mysql->exec('CREATE TABLE `' . $this->options['extras']['prefix'] . 'items` (`feed_id` TEXT CHARACTER SET utf8 NOT NULL, `id` TEXT CHARACTER SET utf8 NOT NULL, `data` TEXT CHARACTER SET utf8 NOT NULL, `posted` INT UNSIGNED NOT NULL, INDEX `feed_id` (`feed_id`(125)))');
               if ($query === false)
               {
                    $this->mysql = null;
               }
          }
     }
     
     public function save($data)
     {
          if ($this->mysql === null)
          {
               return false;
          }
          if ($data instanceof SimplePie)
          {
               $data = clone $data;
               $prepared = self::prepare_simplepie_object_for_cache($data);
               $query = $this->mysql->prepare('SELECT COUNT(*) FROM `' . $this->options['extras']['prefix'] . 'cache_data` WHERE `id` = :feed');
               $query->bindValue(':feed', $this->id);
               if ($query->execute())
               {
                    if ($query->fetchColumn() > 0)
                    {
                         $items = count($prepared[1]);
                         if ($items)
                         {
                              $sql = 'UPDATE `' . $this->options['extras']['prefix'] . 'cache_data` SET `items` = :items, `data` = :data, `mtime` = :time WHERE `id` = :feed';
                              $query = $this->mysql->prepare($sql);
                              $query->bindValue(':items', $items);
                         }
                         else
                         {
                              $sql = 'UPDATE `' . $this->options['extras']['prefix'] . 'cache_data` SET `data` = :data, `mtime` = :time WHERE `id` = :feed';
                              $query = $this->mysql->prepare($sql);
                         }
                         $query->bindValue(':data', $prepared[0]);
                         $query->bindValue(':time', time());
                         $query->bindValue(':feed', $this->id);
                         if (!$query->execute())
                         {
                              return false;
                         }
                    }
                    else
                    {
                         $query = $this->mysql->prepare('INSERT INTO `' . $this->options['extras']['prefix'] . 'cache_data` (`id`, `items`, `data`, `mtime`) VALUES(:feed, :count, :data, :time)');
                         $query->bindValue(':feed', $this->id);
                         $query->bindValue(':count', count($prepared[1]));
                         $query->bindValue(':data', $prepared[0]);
                         $query->bindValue(':time', time());
                         if (!$query->execute())
                         {
                              return false;
                         }
                    }
                    $ids = array_keys($prepared[1]);
                    if (!empty($ids))
                    {
                         foreach ($ids as $id)
                         {
                              $database_ids[] = $this->mysql->quote($id);
                         }
                         $query = $this->mysql->prepare('SELECT `id` FROM `' . $this->options['extras']['prefix'] . 'items` WHERE `id` = ' . implode(' OR `id` = ', $database_ids) . ' AND `feed_id` = :feed');
                         $query->bindValue(':feed', $this->id);
                         if ($query->execute())
                         {
                              $existing_ids = array();
                              while ($row = $query->fetchColumn())
                              {
                                   $existing_ids[] = $row;
                              }
                              $new_ids = array_diff($ids, $existing_ids);
                              foreach ($new_ids as $new_id)
                              {
                                   if (!($date = $prepared[1][$new_id]->get_date('U')))
                                   {
                                        $date = time();
                                   }
                                   $query = $this->mysql->prepare('INSERT INTO `' . $this->options['extras']['prefix'] . 'items` (`feed_id`, `id`, `data`, `posted`) VALUES(:feed, :id, :data, :date)');
                                   $query->bindValue(':feed', $this->id);
                                   $query->bindValue(':id', $new_id);
                                   $query->bindValue(':data', serialize($prepared[1][$new_id]->data));
                                   $query->bindValue(':date', $date);
                                   if (!$query->execute())
                                   {
                                        return false;
                                   }
                              }
                              return true;
                         }
                    }
                    else
                    {
                         return true;
                    }
               }
          }
          else
          {
               $query = $this->mysql->prepare('SELECT `id` FROM `' . $this->options['extras']['prefix'] . 'cache_data` WHERE `id` = :feed');
               $query->bindValue(':feed', $this->id);
               if ($query->execute())
               {
                    if ($query->rowCount() > 0)
                    {
                         $query = $this->mysql->prepare('UPDATE `' . $this->options['extras']['prefix'] . 'cache_data` SET `items` = 0, `data` = :data, `mtime` = :time WHERE `id` = :feed');
                         $query->bindValue(':data', serialize($data));
                         $query->bindValue(':time', time());
                         $query->bindValue(':feed', $this->id);
                         if ($this->execute())
                         {
                              return true;
                         }
                    }
                    else
                    {
                         $query = $this->mysql->prepare('INSERT INTO `' . $this->options['extras']['prefix'] . 'cache_data` (`id`, `items`, `data`, `mtime`) VALUES(:id, 0, :data, :time)');
                         $query->bindValue(':id', $this->id);
                         $query->bindValue(':data', serialize($data));
                         $query->bindValue(':time', time());
                         if ($query->execute())
                         {
                              return true;
                         }
                    }
               }
          }
          return false;
     }
     
     public function load()
     {
          if ($this->mysql === null)
          {
               return false;
          }
          $query = $this->mysql->prepare('SELECT `items`, `data` FROM `' . $this->options['extras']['prefix'] . 'cache_data` WHERE `id` = :id');
          $query->bindValue(':id', $this->id);
          if ($query->execute() && ($row = $query->fetch()))
          {
               $data = unserialize($row[1]);
               if (isset($this->options['items'][0]))
               {
                    $items = (int) $this->options['items'][0];
               }
               else
               {
                    $items = (int) $row[0];
               }
               if ($items !== 0)
               {
                    if (isset($data['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['feed'][0]))
                    {
                         $feed =& $data['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['feed'][0];
                    }
                    elseif (isset($data['child'][SIMPLEPIE_NAMESPACE_ATOM_03]['feed'][0]))
                    {
                         $feed =& $data['child'][SIMPLEPIE_NAMESPACE_ATOM_03]['feed'][0];
                    }
                    elseif (isset($data['child'][SIMPLEPIE_NAMESPACE_RDF]['RDF'][0]))
                    {
                         $feed =& $data['child'][SIMPLEPIE_NAMESPACE_RDF]['RDF'][0];
                    }
                    elseif (isset($data['child'][SIMPLEPIE_NAMESPACE_RSS_20]['rss'][0]))
                    {
                         $feed =& $data['child'][SIMPLEPIE_NAMESPACE_RSS_20]['rss'][0];
                    }
                    else
                    {
                         $feed = null;
                    }
                    if ($feed !== null)
                    {
                         $sql = 'SELECT `data` FROM `' . $this->options['extras']['prefix'] . 'items` WHERE `feed_id` = :feed ORDER BY `posted` DESC';
                         if ($items > 0)
                         {
                              $sql .= ' LIMIT ' . $items;
                         }
                         $query = $this->mysql->prepare($sql);
                         $query->bindValue(':feed', $this->id);
                         if ($query->execute())
                         {
                              while ($row = $query->fetchColumn())
                              {
                                   $feed['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['entry'][] = unserialize($row);
                              }
                         }
                         else
                         {
                              return false;
                         }
                    }
               }
               return $data;
          }
          return false;
     }
     
     public function mtime()
     {
          if ($this->mysql === null)
          {
               return false;
          }
          $query = $this->mysql->prepare('SELECT `mtime` FROM `' . $this->options['extras']['prefix'] . 'cache_data` WHERE `id` = :id');
          $query->bindValue(':id', $this->id);
          if ($query->execute() && ($time = $query->fetchColumn()))
          {
               return $time;
          }
          else
          {
               return false;
          }
     }
     
     public function touch()
     {
          if ($this->mysql === null)
          {
               return false;
          }
          $query = $this->mysql->prepare('UPDATE `' . $this->options['extras']['prefix'] . 'cache_data` SET `mtime` = :time WHERE `id` = :id');
          $query->bindValue(':time', time());
          $query->bindValue(':id', $this->id);
          if ($query->execute() && $query->rowCount() > 0)
          {
               return true;
          }
          else
          {
               return false;
          }
     }
     
     public function unlink()
     {
          if ($this->mysql === null)
          {
               return false;
          }
          $query = $this->mysql->prepare('DELETE FROM `' . $this->options['extras']['prefix'] . 'cache_data` WHERE `id` = :id');
          $query->bindValue(':id', $this->id);
          $query2 = $this->mysql->prepare('DELETE FROM `' . $this->options['extras']['prefix'] . 'items` WHERE `feed_id` = :id');
          $query2->bindValue(':id', $this->id);
          if ($query->execute() && $query2->execute())
          {
               return true;
          }
          else
          {
               return false;
          }
     }
}
class SimplePie_Cache
{
     
     protected static $handlers = array(
          'mysql' => 'SimplePie_Cache_MySQL',
          'memcache' => 'SimplePie_Cache_Memcache',
     );
     
     private function __construct() { }
     
     public static function get_handler($location, $filename, $extension)
     {
          $type = explode(':', $location, 2);
          $type = $type[0];
          if (!empty(self::$handlers[$type]))
          {
               $class = self::$handlers[$type];
               return new $class($location, $filename, $extension);
          }
          return new SimplePie_Cache_File($location, $filename, $extension);
     }
     
     public function create($location, $filename, $extension)
     {
          trigger_error('Cache::create() has been replaced with Cache::get_handler(). Switch to the registry system to use this.', E_USER_DEPRECATED);
          return self::get_handler($location, $filename, $extension);
     }
     
     public static function register($type, $class)
     {
          self::$handlers[$type] = $class;
     }
     
     public static function parse_URL($url)
     {
          $params = parse_url($url);
          $params['extras'] = array();
          if (isset($params['query']))
          {
               parse_str($params['query'], $params['extras']);
          }
          return $params;
     }
}
class SimplePie_Caption
{
     
     var $type;
     
     var $lang;
     
     var $startTime;
     
     var $endTime;
     
     var $text;
     
     public function __construct($type = null, $lang = null, $startTime = null, $endTime = null, $text = null)
     {
          $this->type = $type;
          $this->lang = $lang;
          $this->startTime = $startTime;
          $this->endTime = $endTime;
          $this->text = $text;
     }
     
     public function __toString()
     {
          // There is no $this->data here
          return md5(serialize($this));
     }
     
     public function get_endtime()
     {
          if ($this->endTime !== null)
          {
               return $this->endTime;
          }
          else
          {
               return null;
          }
     }
     
     public function get_language()
     {
          if ($this->lang !== null)
          {
               return $this->lang;
          }
          else
          {
               return null;
          }
     }
     
     public function get_starttime()
     {
          if ($this->startTime !== null)
          {
               return $this->startTime;
          }
          else
          {
               return null;
          }
     }
     
     public function get_text()
     {
          if ($this->text !== null)
          {
               return $this->text;
          }
          else
          {
               return null;
          }
     }
     
     public function get_type()
     {
          if ($this->type !== null)
          {
               return $this->type;
          }
          else
          {
               return null;
          }
     }
}
class SimplePie_Category
{
     
     var $term;
     
     var $scheme;
     
     var $label;
     
     public function __construct($term = null, $scheme = null, $label = null)
     {
          $this->term = $term;
          $this->scheme = $scheme;
          $this->label = $label;
     }
     
     public function __toString()
     {
          // There is no $this->data here
          return md5(serialize($this));
     }
     
     public function get_term()
     {
          if ($this->term !== null)
          {
               return $this->term;
          }
          else
          {
               return null;
          }
     }
     
     public function get_scheme()
     {
          if ($this->scheme !== null)
          {
               return $this->scheme;
          }
          else
          {
               return null;
          }
     }
     
     public function get_label()
     {
          if ($this->label !== null)
          {
               return $this->label;
          }
          else
          {
               return $this->get_term();
          }
     }
}
class SimplePie_Content_Type_Sniffer
{
     
     var $file;
     
     public function __construct($file)
     {
          $this->file = $file;
     }
     
     public function get_type()
     {
          if (isset($this->file->headers['content-type']))
          {
               if (!isset($this->file->headers['content-encoding'])
                    && ($this->file->headers['content-type'] === 'text/plain'
                         || $this->file->headers['content-type'] === 'text/plain; charset=ISO-8859-1'
                         || $this->file->headers['content-type'] === 'text/plain; charset=iso-8859-1'
                         || $this->file->headers['content-type'] === 'text/plain; charset=UTF-8'))
               {
                    return $this->text_or_binary();
               }
               if (($pos = strpos($this->file->headers['content-type'], ';')) !== false)
               {
                    $official = substr($this->file->headers['content-type'], 0, $pos);
               }
               else
               {
                    $official = $this->file->headers['content-type'];
               }
               $official = trim(strtolower($official));
               if ($official === 'unknown/unknown'
                    || $official === 'application/unknown')
               {
                    return $this->unknown();
               }
               elseif (substr($official, -4) === '+xml'
                    || $official === 'text/xml'
                    || $official === 'application/xml')
               {
                    return $official;
               }
               elseif (substr($official, 0, 6) === 'image/')
               {
                    if ($return = $this->image())
                    {
                         return $return;
                    }
                    else
                    {
                         return $official;
                    }
               }
               elseif ($official === 'text/html')
               {
                    return $this->feed_or_html();
               }
               else
               {
                    return $official;
               }
          }
          else
          {
               return $this->unknown();
          }
     }
     
     public function text_or_binary()
     {
          if (substr($this->file->body, 0, 2) === "\xFE\xFF"
               || substr($this->file->body, 0, 2) === "\xFF\xFE"
               || substr($this->file->body, 0, 4) === "\x00\x00\xFE\xFF"
               || substr($this->file->body, 0, 3) === "\xEF\xBB\xBF")
          {
               return 'text/plain';
          }
          elseif (preg_match('/[\x00-\x08\x0E-\x1A\x1C-\x1F]/', $this->file->body))
          {
               return 'application/octect-stream';
          }
          else
          {
               return 'text/plain';
          }
     }
     
     public function unknown()
     {
          $ws = strspn($this->file->body, "\x09\x0A\x0B\x0C\x0D\x20");
          if (strtolower(substr($this->file->body, $ws, 14)) === '<!doctype html'
               || strtolower(substr($this->file->body, $ws, 5)) === '<html'
               || strtolower(substr($this->file->body, $ws, 7)) === '<script')
          {
               return 'text/html';
          }
          elseif (substr($this->file->body, 0, 5) === '%PDF-')
          {
               return 'application/pdf';
          }
          elseif (substr($this->file->body, 0, 11) === '%!PS-Adobe-')
          {
               return 'application/postscript';
          }
          elseif (substr($this->file->body, 0, 6) === 'GIF87a'
               || substr($this->file->body, 0, 6) === 'GIF89a')
          {
               return 'image/gif';
          }
          elseif (substr($this->file->body, 0, 8) === "\x89\x50\x4E\x47\x0D\x0A\x1A\x0A")
          {
               return 'image/png';
          }
          elseif (substr($this->file->body, 0, 3) === "\xFF\xD8\xFF")
          {
               return 'image/jpeg';
          }
          elseif (substr($this->file->body, 0, 2) === "\x42\x4D")
          {
               return 'image/bmp';
          }
          elseif (substr($this->file->body, 0, 4) === "\x00\x00\x01\x00")
          {
               return 'image/vnd.microsoft.icon';
          }
          else
          {
               return $this->text_or_binary();
          }
     }
     
     public function image()
     {
          if (substr($this->file->body, 0, 6) === 'GIF87a'
               || substr($this->file->body, 0, 6) === 'GIF89a')
          {
               return 'image/gif';
          }
          elseif (substr($this->file->body, 0, 8) === "\x89\x50\x4E\x47\x0D\x0A\x1A\x0A")
          {
               return 'image/png';
          }
          elseif (substr($this->file->body, 0, 3) === "\xFF\xD8\xFF")
          {
               return 'image/jpeg';
          }
          elseif (substr($this->file->body, 0, 2) === "\x42\x4D")
          {
               return 'image/bmp';
          }
          elseif (substr($this->file->body, 0, 4) === "\x00\x00\x01\x00")
          {
               return 'image/vnd.microsoft.icon';
          }
          else
          {
               return false;
          }
     }
     
     public function feed_or_html()
     {
          $len = strlen($this->file->body);
          $pos = strspn($this->file->body, "\x09\x0A\x0D\x20");
          while ($pos < $len)
          {
               switch ($this->file->body[$pos])
               {
                    case "\x09":
                    case "\x0A":
                    case "\x0D":
                    case "\x20":
                         $pos += strspn($this->file->body, "\x09\x0A\x0D\x20", $pos);
                         continue 2;
                    case '<':
                         $pos++;
                         break;
                    default:
                         return 'text/html';
               }
               if (substr($this->file->body, $pos, 3) === '!--')
               {
                    $pos += 3;
                    if ($pos < $len && ($pos = strpos($this->file->body, '-->', $pos)) !== false)
                    {
                         $pos += 3;
                    }
                    else
                    {
                         return 'text/html';
                    }
               }
               elseif (substr($this->file->body, $pos, 1) === '!')
               {
                    if ($pos < $len && ($pos = strpos($this->file->body, '>', $pos)) !== false)
                    {
                         $pos++;
                    }
                    else
                    {
                         return 'text/html';
                    }
               }
               elseif (substr($this->file->body, $pos, 1) === '?')
               {
                    if ($pos < $len && ($pos = strpos($this->file->body, '?>', $pos)) !== false)
                    {
                         $pos += 2;
                    }
                    else
                    {
                         return 'text/html';
                    }
               }
               elseif (substr($this->file->body, $pos, 3) === 'rss'
                    || substr($this->file->body, $pos, 7) === 'rdf:RDF')
               {
                    return 'application/rss+xml';
               }
               elseif (substr($this->file->body, $pos, 4) === 'feed')
               {
                    return 'application/atom+xml';
               }
               else
               {
                    return 'text/html';
               }
          }
          return 'text/html';
     }
}
class SimplePie_Copyright
{
     
     var $url;
     
     var $label;
     
     public function __construct($url = null, $label = null)
     {
          $this->url = $url;
          $this->label = $label;
     }
     
     public function __toString()
     {
          // There is no $this->data here
          return md5(serialize($this));
     }
     
     public function get_url()
     {
          if ($this->url !== null)
          {
               return $this->url;
          }
          else
          {
               return null;
          }
     }
     
     public function get_attribution()
     {
          if ($this->label !== null)
          {
               return $this->label;
          }
          else
          {
               return null;
          }
     }
}
class SimplePie_Core extends SimplePie
{
}
class SimplePie_Credit
{
     
     var $role;
     
     var $scheme;
     
     var $name;
     
     public function __construct($role = null, $scheme = null, $name = null)
     {
          $this->role = $role;
          $this->scheme = $scheme;
          $this->name = $name;
     }
     
     public function __toString()
     {
          // There is no $this->data here
          return md5(serialize($this));
     }
     
     public function get_role()
     {
          if ($this->role !== null)
          {
               return $this->role;
          }
          else
          {
               return null;
          }
     }
     
     public function get_scheme()
     {
          if ($this->scheme !== null)
          {
               return $this->scheme;
          }
          else
          {
               return null;
          }
     }
     
     public function get_name()
     {
          if ($this->name !== null)
          {
               return $this->name;
          }
          else
          {
               return null;
          }
     }
}
class SimplePie_Decode_HTML_Entities
{
     
     var $data = '';
     
     var $consumed = '';
     
     var $position = 0;
     
     public function __construct($data)
     {
          $this->data = $data;
     }
     
     public function parse()
     {
          while (($this->position = strpos($this->data, '&', $this->position)) !== false)
          {
               $this->consume();
               $this->entity();
               $this->consumed = '';
          }
          return $this->data;
     }
     
     public function consume()
     {
          if (isset($this->data[$this->position]))
          {
               $this->consumed .= $this->data[$this->position];
               return $this->data[$this->position++];
          }
          else
          {
               return false;
          }
     }
     
     public function consume_range($chars)
     {
          if ($len = strspn($this->data, $chars, $this->position))
          {
               $data = substr($this->data, $this->position, $len);
               $this->consumed .= $data;
               $this->position += $len;
               return $data;
          }
          else
          {
               return false;
          }
     }
     
     public function unconsume()
     {
          $this->consumed = substr($this->consumed, 0, -1);
          $this->position--;
     }
     
     public function entity()
     {
          switch ($this->consume())
          {
               case "\x09":
               case "\x0A":
               case "\x0B":
               case "\x0B":
               case "\x0C":
               case "\x20":
               case "\x3C":
               case "\x26":
               case false:
                    break;
               case "\x23":
                    switch ($this->consume())
                    {
                         case "\x78":
                         case "\x58":
                              $range = '0123456789ABCDEFabcdef';
                              $hex = true;
                              break;
                         default:
                              $range = '0123456789';
                              $hex = false;
                              $this->unconsume();
                              break;
                    }
                    if ($codepoint = $this->consume_range($range))
                    {
                         static $windows_1252_specials = array(0x0D => "\x0A", 0x80 => "\xE2\x82\xAC", 0x81 => "\xEF\xBF\xBD", 0x82 => "\xE2\x80\x9A", 0x83 => "\xC6\x92", 0x84 => "\xE2\x80\x9E", 0x85 => "\xE2\x80\xA6", 0x86 => "\xE2\x80\xA0", 0x87 => "\xE2\x80\xA1", 0x88 => "\xCB\x86", 0x89 => "\xE2\x80\xB0", 0x8A => "\xC5\xA0", 0x8B => "\xE2\x80\xB9", 0x8C => "\xC5\x92", 0x8D => "\xEF\xBF\xBD", 0x8E => "\xC5\xBD", 0x8F => "\xEF\xBF\xBD", 0x90 => "\xEF\xBF\xBD", 0x91 => "\xE2\x80\x98", 0x92 => "\xE2\x80\x99", 0x93 => "\xE2\x80\x9C", 0x94 => "\xE2\x80\x9D", 0x95 => "\xE2\x80\xA2", 0x96 => "\xE2\x80\x93", 0x97 => "\xE2\x80\x94", 0x98 => "\xCB\x9C", 0x99 => "\xE2\x84\xA2", 0x9A => "\xC5\xA1", 0x9B => "\xE2\x80\xBA", 0x9C => "\xC5\x93", 0x9D => "\xEF\xBF\xBD", 0x9E => "\xC5\xBE", 0x9F => "\xC5\xB8");
                         if ($hex)
                         {
                              $codepoint = hexdec($codepoint);
                         }
                         else
                         {
                              $codepoint = intval($codepoint);
                         }
                         if (isset($windows_1252_specials[$codepoint]))
                         {
                              $replacement = $windows_1252_specials[$codepoint];
                         }
                         else
                         {
                              $replacement = SimplePie_Misc::codepoint_to_utf8($codepoint);
                         }
                         if (!in_array($this->consume(), array(';', false), true))
                         {
                              $this->unconsume();
                         }
                         $consumed_length = strlen($this->consumed);
                         $this->data = substr_replace($this->data, $replacement, $this->position - $consumed_length, $consumed_length);
                         $this->position += strlen($replacement) - $consumed_length;
                    }
                    break;
               default:
                    static $entities = array(
                         'Aacute' => "\xC3\x81",
                         'aacute' => "\xC3\xA1",
                         'Aacute;' => "\xC3\x81",
                         'aacute;' => "\xC3\xA1",
                         'Acirc' => "\xC3\x82",
                         'acirc' => "\xC3\xA2",
                         'Acirc;' => "\xC3\x82",
                         'acirc;' => "\xC3\xA2",
                         'acute' => "\xC2\xB4",
                         'acute;' => "\xC2\xB4",
                         'AElig' => "\xC3\x86",
                         'aelig' => "\xC3\xA6",
                         'AElig;' => "\xC3\x86",
                         'aelig;' => "\xC3\xA6",
                         'Agrave' => "\xC3\x80",
                         'agrave' => "\xC3\xA0",
                         'Agrave;' => "\xC3\x80",
                         'agrave;' => "\xC3\xA0",
                         'alefsym;' => "\xE2\x84\xB5",
                         'Alpha;' => "\xCE\x91",
                         'alpha;' => "\xCE\xB1",
                         'AMP' => "\x26",
                         'amp' => "\x26",
                         'AMP;' => "\x26",
                         'amp;' => "\x26",
                         'and;' => "\xE2\x88\xA7",
                         'ang;' => "\xE2\x88\xA0",
                         'apos;' => "\x27",
                         'Aring' => "\xC3\x85",
                         'aring' => "\xC3\xA5",
                         'Aring;' => "\xC3\x85",
                         'aring;' => "\xC3\xA5",
                         'asymp;' => "\xE2\x89\x88",
                         'Atilde' => "\xC3\x83",
                         'atilde' => "\xC3\xA3",
                         'Atilde;' => "\xC3\x83",
                         'atilde;' => "\xC3\xA3",
                         'Auml' => "\xC3\x84",
                         'auml' => "\xC3\xA4",
                         'Auml;' => "\xC3\x84",
                         'auml;' => "\xC3\xA4",
                         'bdquo;' => "\xE2\x80\x9E",
                         'Beta;' => "\xCE\x92",
                         'beta;' => "\xCE\xB2",
                         'brvbar' => "\xC2\xA6",
                         'brvbar;' => "\xC2\xA6",
                         'bull;' => "\xE2\x80\xA2",
                         'cap;' => "\xE2\x88\xA9",
                         'Ccedil' => "\xC3\x87",
                         'ccedil' => "\xC3\xA7",
                         'Ccedil;' => "\xC3\x87",
                         'ccedil;' => "\xC3\xA7",
                         'cedil' => "\xC2\xB8",
                         'cedil;' => "\xC2\xB8",
                         'cent' => "\xC2\xA2",
                         'cent;' => "\xC2\xA2",
                         'Chi;' => "\xCE\xA7",
                         'chi;' => "\xCF\x87",
                         'circ;' => "\xCB\x86",
                         'clubs;' => "\xE2\x99\xA3",
                         'cong;' => "\xE2\x89\x85",
                         'COPY' => "\xC2\xA9",
                         'copy' => "\xC2\xA9",
                         'COPY;' => "\xC2\xA9",
                         'copy;' => "\xC2\xA9",
                         'crarr;' => "\xE2\x86\xB5",
                         'cup;' => "\xE2\x88\xAA",
                         'curren' => "\xC2\xA4",
                         'curren;' => "\xC2\xA4",
                         'Dagger;' => "\xE2\x80\xA1",
                         'dagger;' => "\xE2\x80\xA0",
                         'dArr;' => "\xE2\x87\x93",
                         'darr;' => "\xE2\x86\x93",
                         'deg' => "\xC2\xB0",
                         'deg;' => "\xC2\xB0",
                         'Delta;' => "\xCE\x94",
                         'delta;' => "\xCE\xB4",
                         'diams;' => "\xE2\x99\xA6",
                         'divide' => "\xC3\xB7",
                         'divide;' => "\xC3\xB7",
                         'Eacute' => "\xC3\x89",
                         'eacute' => "\xC3\xA9",
                         'Eacute;' => "\xC3\x89",
                         'eacute;' => "\xC3\xA9",
                         'Ecirc' => "\xC3\x8A",
                         'ecirc' => "\xC3\xAA",
                         'Ecirc;' => "\xC3\x8A",
                         'ecirc;' => "\xC3\xAA",
                         'Egrave' => "\xC3\x88",
                         'egrave' => "\xC3\xA8",
                         'Egrave;' => "\xC3\x88",
                         'egrave;' => "\xC3\xA8",
                         'empty;' => "\xE2\x88\x85",
                         'emsp;' => "\xE2\x80\x83",
                         'ensp;' => "\xE2\x80\x82",
                         'Epsilon;' => "\xCE\x95",
                         'epsilon;' => "\xCE\xB5",
                         'equiv;' => "\xE2\x89\xA1",
                         'Eta;' => "\xCE\x97",
                         'eta;' => "\xCE\xB7",
                         'ETH' => "\xC3\x90",
                         'eth' => "\xC3\xB0",
                         'ETH;' => "\xC3\x90",
                         'eth;' => "\xC3\xB0",
                         'Euml' => "\xC3\x8B",
                         'euml' => "\xC3\xAB",
                         'Euml;' => "\xC3\x8B",
                         'euml;' => "\xC3\xAB",
                         'euro;' => "\xE2\x82\xAC",
                         'exist;' => "\xE2\x88\x83",
                         'fnof;' => "\xC6\x92",
                         'forall;' => "\xE2\x88\x80",
                         'frac12' => "\xC2\xBD",
                         'frac12;' => "\xC2\xBD",
                         'frac14' => "\xC2\xBC",
                         'frac14;' => "\xC2\xBC",
                         'frac34' => "\xC2\xBE",
                         'frac34;' => "\xC2\xBE",
                         'frasl;' => "\xE2\x81\x84",
                         'Gamma;' => "\xCE\x93",
                         'gamma;' => "\xCE\xB3",
                         'ge;' => "\xE2\x89\xA5",
                         'GT' => "\x3E",
                         'gt' => "\x3E",
                         'GT;' => "\x3E",
                         'gt;' => "\x3E",
                         'hArr;' => "\xE2\x87\x94",
                         'harr;' => "\xE2\x86\x94",
                         'hearts;' => "\xE2\x99\xA5",
                         'hellip;' => "\xE2\x80\xA6",
                         'Iacute' => "\xC3\x8D",
                         'iacute' => "\xC3\xAD",
                         'Iacute;' => "\xC3\x8D",
                         'iacute;' => "\xC3\xAD",
                         'Icirc' => "\xC3\x8E",
                         'icirc' => "\xC3\xAE",
                         'Icirc;' => "\xC3\x8E",
                         'icirc;' => "\xC3\xAE",
                         'iexcl' => "\xC2\xA1",
                         'iexcl;' => "\xC2\xA1",
                         'Igrave' => "\xC3\x8C",
                         'igrave' => "\xC3\xAC",
                         'Igrave;' => "\xC3\x8C",
                         'igrave;' => "\xC3\xAC",
                         'image;' => "\xE2\x84\x91",
                         'infin;' => "\xE2\x88\x9E",
                         'int;' => "\xE2\x88\xAB",
                         'Iota;' => "\xCE\x99",
                         'iota;' => "\xCE\xB9",
                         'iquest' => "\xC2\xBF",
                         'iquest;' => "\xC2\xBF",
                         'isin;' => "\xE2\x88\x88",
                         'Iuml' => "\xC3\x8F",
                         'iuml' => "\xC3\xAF",
                         'Iuml;' => "\xC3\x8F",
                         'iuml;' => "\xC3\xAF",
                         'Kappa;' => "\xCE\x9A",
                         'kappa;' => "\xCE\xBA",
                         'Lambda;' => "\xCE\x9B",
                         'lambda;' => "\xCE\xBB",
                         'lang;' => "\xE3\x80\x88",
                         'laquo' => "\xC2\xAB",
                         'laquo;' => "\xC2\xAB",
                         'lArr;' => "\xE2\x87\x90",
                         'larr;' => "\xE2\x86\x90",
                         'lceil;' => "\xE2\x8C\x88",
                         'ldquo;' => "\xE2\x80\x9C",
                         'le;' => "\xE2\x89\xA4",
                         'lfloor;' => "\xE2\x8C\x8A",
                         'lowast;' => "\xE2\x88\x97",
                         'loz;' => "\xE2\x97\x8A",
                         'lrm;' => "\xE2\x80\x8E",
                         'lsaquo;' => "\xE2\x80\xB9",
                         'lsquo;' => "\xE2\x80\x98",
                         'LT' => "\x3C",
                         'lt' => "\x3C",
                         'LT;' => "\x3C",
                         'lt;' => "\x3C",
                         'macr' => "\xC2\xAF",
                         'macr;' => "\xC2\xAF",
                         'mdash;' => "\xE2\x80\x94",
                         'micro' => "\xC2\xB5",
                         'micro;' => "\xC2\xB5",
                         'middot' => "\xC2\xB7",
                         'middot;' => "\xC2\xB7",
                         'minus;' => "\xE2\x88\x92",
                         'Mu;' => "\xCE\x9C",
                         'mu;' => "\xCE\xBC",
                         'nabla;' => "\xE2\x88\x87",
                         'nbsp' => "\xC2\xA0",
                         'nbsp;' => "\xC2\xA0",
                         'ndash;' => "\xE2\x80\x93",
                         'ne;' => "\xE2\x89\xA0",
                         'ni;' => "\xE2\x88\x8B",
                         'not' => "\xC2\xAC",
                         'not;' => "\xC2\xAC",
                         'notin;' => "\xE2\x88\x89",
                         'nsub;' => "\xE2\x8A\x84",
                         'Ntilde' => "\xC3\x91",
                         'ntilde' => "\xC3\xB1",
                         'Ntilde;' => "\xC3\x91",
                         'ntilde;' => "\xC3\xB1",
                         'Nu;' => "\xCE\x9D",
                         'nu;' => "\xCE\xBD",
                         'Oacute' => "\xC3\x93",
                         'oacute' => "\xC3\xB3",
                         'Oacute;' => "\xC3\x93",
                         'oacute;' => "\xC3\xB3",
                         'Ocirc' => "\xC3\x94",
                         'ocirc' => "\xC3\xB4",
                         'Ocirc;' => "\xC3\x94",
                         'ocirc;' => "\xC3\xB4",
                         'OElig;' => "\xC5\x92",
                         'oelig;' => "\xC5\x93",
                         'Ograve' => "\xC3\x92",
                         'ograve' => "\xC3\xB2",
                         'Ograve;' => "\xC3\x92",
                         'ograve;' => "\xC3\xB2",
                         'oline;' => "\xE2\x80\xBE",
                         'Omega;' => "\xCE\xA9",
                         'omega;' => "\xCF\x89",
                         'Omicron;' => "\xCE\x9F",
                         'omicron;' => "\xCE\xBF",
                         'oplus;' => "\xE2\x8A\x95",
                         'or;' => "\xE2\x88\xA8",
                         'ordf' => "\xC2\xAA",
                         'ordf;' => "\xC2\xAA",
                         'ordm' => "\xC2\xBA",
                         'ordm;' => "\xC2\xBA",
                         'Oslash' => "\xC3\x98",
                         'oslash' => "\xC3\xB8",
                         'Oslash;' => "\xC3\x98",
                         'oslash;' => "\xC3\xB8",
                         'Otilde' => "\xC3\x95",
                         'otilde' => "\xC3\xB5",
                         'Otilde;' => "\xC3\x95",
                         'otilde;' => "\xC3\xB5",
                         'otimes;' => "\xE2\x8A\x97",
                         'Ouml' => "\xC3\x96",
                         'ouml' => "\xC3\xB6",
                         'Ouml;' => "\xC3\x96",
                         'ouml;' => "\xC3\xB6",
                         'para' => "\xC2\xB6",
                         'para;' => "\xC2\xB6",
                         'part;' => "\xE2\x88\x82",
                         'permil;' => "\xE2\x80\xB0",
                         'perp;' => "\xE2\x8A\xA5",
                         'Phi;' => "\xCE\xA6",
                         'phi;' => "\xCF\x86",
                         'Pi;' => "\xCE\xA0",
                         'pi;' => "\xCF\x80",
                         'piv;' => "\xCF\x96",
                         'plusmn' => "\xC2\xB1",
                         'plusmn;' => "\xC2\xB1",
                         'pound' => "\xC2\xA3",
                         'pound;' => "\xC2\xA3",
                         'Prime;' => "\xE2\x80\xB3",
                         'prime;' => "\xE2\x80\xB2",
                         'prod;' => "\xE2\x88\x8F",
                         'prop;' => "\xE2\x88\x9D",
                         'Psi;' => "\xCE\xA8",
                         'psi;' => "\xCF\x88",
                         'QUOT' => "\x22",
                         'quot' => "\x22",
                         'QUOT;' => "\x22",
                         'quot;' => "\x22",
                         'radic;' => "\xE2\x88\x9A",
                         'rang;' => "\xE3\x80\x89",
                         'raquo' => "\xC2\xBB",
                         'raquo;' => "\xC2\xBB",
                         'rArr;' => "\xE2\x87\x92",
                         'rarr;' => "\xE2\x86\x92",
                         'rceil;' => "\xE2\x8C\x89",
                         'rdquo;' => "\xE2\x80\x9D",
                         'real;' => "\xE2\x84\x9C",
                         'REG' => "\xC2\xAE",
                         'reg' => "\xC2\xAE",
                         'REG;' => "\xC2\xAE",
                         'reg;' => "\xC2\xAE",
                         'rfloor;' => "\xE2\x8C\x8B",
                         'Rho;' => "\xCE\xA1",
                         'rho;' => "\xCF\x81",
                         'rlm;' => "\xE2\x80\x8F",
                         'rsaquo;' => "\xE2\x80\xBA",
                         'rsquo;' => "\xE2\x80\x99",
                         'sbquo;' => "\xE2\x80\x9A",
                         'Scaron;' => "\xC5\xA0",
                         'scaron;' => "\xC5\xA1",
                         'sdot;' => "\xE2\x8B\x85",
                         'sect' => "\xC2\xA7",
                         'sect;' => "\xC2\xA7",
                         'shy' => "\xC2\xAD",
                         'shy;' => "\xC2\xAD",
                         'Sigma;' => "\xCE\xA3",
                         'sigma;' => "\xCF\x83",
                         'sigmaf;' => "\xCF\x82",
                         'sim;' => "\xE2\x88\xBC",
                         'spades;' => "\xE2\x99\xA0",
                         'sub;' => "\xE2\x8A\x82",
                         'sube;' => "\xE2\x8A\x86",
                         'sum;' => "\xE2\x88\x91",
                         'sup;' => "\xE2\x8A\x83",
                         'sup1' => "\xC2\xB9",
                         'sup1;' => "\xC2\xB9",
                         'sup2' => "\xC2\xB2",
                         'sup2;' => "\xC2\xB2",
                         'sup3' => "\xC2\xB3",
                         'sup3;' => "\xC2\xB3",
                         'supe;' => "\xE2\x8A\x87",
                         'szlig' => "\xC3\x9F",
                         'szlig;' => "\xC3\x9F",
                         'Tau;' => "\xCE\xA4",
                         'tau;' => "\xCF\x84",
                         'there4;' => "\xE2\x88\xB4",
                         'Theta;' => "\xCE\x98",
                         'theta;' => "\xCE\xB8",
                         'thetasym;' => "\xCF\x91",
                         'thinsp;' => "\xE2\x80\x89",
                         'THORN' => "\xC3\x9E",
                         'thorn' => "\xC3\xBE",
                         'THORN;' => "\xC3\x9E",
                         'thorn;' => "\xC3\xBE",
                         'tilde;' => "\xCB\x9C",
                         'times' => "\xC3\x97",
                         'times;' => "\xC3\x97",
                         'TRADE;' => "\xE2\x84\xA2",
                         'trade;' => "\xE2\x84\xA2",
                         'Uacute' => "\xC3\x9A",
                         'uacute' => "\xC3\xBA",
                         'Uacute;' => "\xC3\x9A",
                         'uacute;' => "\xC3\xBA",
                         'uArr;' => "\xE2\x87\x91",
                         'uarr;' => "\xE2\x86\x91",
                         'Ucirc' => "\xC3\x9B",
                         'ucirc' => "\xC3\xBB",
                         'Ucirc;' => "\xC3\x9B",
                         'ucirc;' => "\xC3\xBB",
                         'Ugrave' => "\xC3\x99",
                         'ugrave' => "\xC3\xB9",
                         'Ugrave;' => "\xC3\x99",
                         'ugrave;' => "\xC3\xB9",
                         'uml' => "\xC2\xA8",
                         'uml;' => "\xC2\xA8",
                         'upsih;' => "\xCF\x92",
                         'Upsilon;' => "\xCE\xA5",
                         'upsilon;' => "\xCF\x85",
                         'Uuml' => "\xC3\x9C",
                         'uuml' => "\xC3\xBC",
                         'Uuml;' => "\xC3\x9C",
                         'uuml;' => "\xC3\xBC",
                         'weierp;' => "\xE2\x84\x98",
                         'Xi;' => "\xCE\x9E",
                         'xi;' => "\xCE\xBE",
                         'Yacute' => "\xC3\x9D",
                         'yacute' => "\xC3\xBD",
                         'Yacute;' => "\xC3\x9D",
                         'yacute;' => "\xC3\xBD",
                         'yen' => "\xC2\xA5",
                         'yen;' => "\xC2\xA5",
                         'yuml' => "\xC3\xBF",
                         'Yuml;' => "\xC5\xB8",
                         'yuml;' => "\xC3\xBF",
                         'Zeta;' => "\xCE\x96",
                         'zeta;' => "\xCE\xB6",
                         'zwj;' => "\xE2\x80\x8D",
                         'zwnj;' => "\xE2\x80\x8C"
                    );
                    for ($i = 0, $match = null; $i < 9 && $this->consume() !== false; $i++)
                    {
                         $consumed = substr($this->consumed, 1);
                         if (isset($entities[$consumed]))
                         {
                              $match = $consumed;
                         }
                    }
                    if ($match !== null)
                    {
                         $this->data = substr_replace($this->data, $entities[$match], $this->position - strlen($consumed) - 1, strlen($match) + 1);
                         $this->position += strlen($entities[$match]) - strlen($consumed) - 1;
                    }
                    break;
          }
     }
}
class SimplePie_Enclosure
{
     
     var $bitrate;
     
     var $captions;
     
     var $categories;
     
     var $channels;
     
     var $copyright;
     
     var $credits;
     
     var $description;
     
     var $duration;
     
     var $expression;
     
     var $framerate;
     
     var $handler;
     
     var $hashes;
     
     var $height;
     
     var $javascript;
     
     var $keywords;
     
     var $lang;
     
     var $length;
     
     var $link;
     
     var $medium;
     
     var $player;
     
     var $ratings;
     
     var $restrictions;
     
     var $samplingrate;
     
     var $thumbnails;
     
     var $title;
     
     var $type;
     
     var $width;
     
     public function __construct($link = null, $type = null, $length = null, $javascript = null, $bitrate = null, $captions = null, $categories = null, $channels = null, $copyright = null, $credits = null, $description = null, $duration = null, $expression = null, $framerate = null, $hashes = null, $height = null, $keywords = null, $lang = null, $medium = null, $player = null, $ratings = null, $restrictions = null, $samplingrate = null, $thumbnails = null, $title = null, $width = null)
     {
          $this->bitrate = $bitrate;
          $this->captions = $captions;
          $this->categories = $categories;
          $this->channels = $channels;
          $this->copyright = $copyright;
          $this->credits = $credits;
          $this->description = $description;
          $this->duration = $duration;
          $this->expression = $expression;
          $this->framerate = $framerate;
          $this->hashes = $hashes;
          $this->height = $height;
          $this->keywords = $keywords;
          $this->lang = $lang;
          $this->length = $length;
          $this->link = $link;
          $this->medium = $medium;
          $this->player = $player;
          $this->ratings = $ratings;
          $this->restrictions = $restrictions;
          $this->samplingrate = $samplingrate;
          $this->thumbnails = $thumbnails;
          $this->title = $title;
          $this->type = $type;
          $this->width = $width;
          if (class_exists('idna_convert'))
          {
               $idn = new idna_convert();
               $parsed = SimplePie_Misc::parse_url($link);
               $this->link = SimplePie_Misc::compress_parse_url($parsed['scheme'], $idn->encode($parsed['authority']), $parsed['path'], $parsed['query'], $parsed['fragment']);
          }
          $this->handler = $this->get_handler(); // Needs to load last
     }
     
     public function __toString()
     {
          // There is no $this->data here
          return md5(serialize($this));
     }
     
     public function get_bitrate()
     {
          if ($this->bitrate !== null)
          {
               return $this->bitrate;
          }
          else
          {
               return null;
          }
     }
     
     public function get_caption($key = 0)
     {
          $captions = $this->get_captions();
          if (isset($captions[$key]))
          {
               return $captions[$key];
          }
          else
          {
               return null;
          }
     }
     
     public function get_captions()
     {
          if ($this->captions !== null)
          {
               return $this->captions;
          }
          else
          {
               return null;
          }
     }
     
     public function get_category($key = 0)
     {
          $categories = $this->get_categories();
          if (isset($categories[$key]))
          {
               return $categories[$key];
          }
          else
          {
               return null;
          }
     }
     
     public function get_categories()
     {
          if ($this->categories !== null)
          {
               return $this->categories;
          }
          else
          {
               return null;
          }
     }
     
     public function get_channels()
     {
          if ($this->channels !== null)
          {
               return $this->channels;
          }
          else
          {
               return null;
          }
     }
     
     public function get_copyright()
     {
          if ($this->copyright !== null)
          {
               return $this->copyright;
          }
          else
          {
               return null;
          }
     }
     
     public function get_credit($key = 0)
     {
          $credits = $this->get_credits();
          if (isset($credits[$key]))
          {
               return $credits[$key];
          }
          else
          {
               return null;
          }
     }
     
     public function get_credits()
     {
          if ($this->credits !== null)
          {
               return $this->credits;
          }
          else
          {
               return null;
          }
     }
     
     public function get_description()
     {
          if ($this->description !== null)
          {
               return $this->description;
          }
          else
          {
               return null;
          }
     }
     
     public function get_duration($convert = false)
     {
          if ($this->duration !== null)
          {
               if ($convert)
               {
                    $time = SimplePie_Misc::time_hms($this->duration);
                    return $time;
               }
               else
               {
                    return $this->duration;
               }
          }
          else
          {
               return null;
          }
     }
     
     public function get_expression()
     {
          if ($this->expression !== null)
          {
               return $this->expression;
          }
          else
          {
               return 'full';
          }
     }
     
     public function get_extension()
     {
          if ($this->link !== null)
          {
               $url = SimplePie_Misc::parse_url($this->link);
               if ($url['path'] !== '')
               {
                    return pathinfo($url['path'], PATHINFO_EXTENSION);
               }
          }
          return null;
     }
     
     public function get_framerate()
     {
          if ($this->framerate !== null)
          {
               return $this->framerate;
          }
          else
          {
               return null;
          }
     }
     
     public function get_handler()
     {
          return $this->get_real_type(true);
     }
     
     public function get_hash($key = 0)
     {
          $hashes = $this->get_hashes();
          if (isset($hashes[$key]))
          {
               return $hashes[$key];
          }
          else
          {
               return null;
          }
     }
     
     public function get_hashes()
     {
          if ($this->hashes !== null)
          {
               return $this->hashes;
          }
          else
          {
               return null;
          }
     }
     
     public function get_height()
     {
          if ($this->height !== null)
          {
               return $this->height;
          }
          else
          {
               return null;
          }
     }
     
     public function get_language()
     {
          if ($this->lang !== null)
          {
               return $this->lang;
          }
          else
          {
               return null;
          }
     }
     
     public function get_keyword($key = 0)
     {
          $keywords = $this->get_keywords();
          if (isset($keywords[$key]))
          {
               return $keywords[$key];
          }
          else
          {
               return null;
          }
     }
     
     public function get_keywords()
     {
          if ($this->keywords !== null)
          {
               return $this->keywords;
          }
          else
          {
               return null;
          }
     }
     
     public function get_length()
     {
          if ($this->length !== null)
          {
               return $this->length;
          }
          else
          {
               return null;
          }
     }
     
     public function get_link()
     {
          if ($this->link !== null)
          {
               return urldecode($this->link);
          }
          else
          {
               return null;
          }
     }
     
     public function get_medium()
     {
          if ($this->medium !== null)
          {
               return $this->medium;
          }
          else
          {
               return null;
          }
     }
     
     public function get_player()
     {
          if ($this->player !== null)
          {
               return $this->player;
          }
          else
          {
               return null;
          }
     }
     
     public function get_rating($key = 0)
     {
          $ratings = $this->get_ratings();
          if (isset($ratings[$key]))
          {
               return $ratings[$key];
          }
          else
          {
               return null;
          }
     }
     
     public function get_ratings()
     {
          if ($this->ratings !== null)
          {
               return $this->ratings;
          }
          else
          {
               return null;
          }
     }
     
     public function get_restriction($key = 0)
     {
          $restrictions = $this->get_restrictions();
          if (isset($restrictions[$key]))
          {
               return $restrictions[$key];
          }
          else
          {
               return null;
          }
     }
     
     public function get_restrictions()
     {
          if ($this->restrictions !== null)
          {
               return $this->restrictions;
          }
          else
          {
               return null;
          }
     }
     
     public function get_sampling_rate()
     {
          if ($this->samplingrate !== null)
          {
               return $this->samplingrate;
          }
          else
          {
               return null;
          }
     }
     
     public function get_size()
     {
          $length = $this->get_length();
          if ($length !== null)
          {
               return round($length/1048576, 2);
          }
          else
          {
               return null;
          }
     }
     
     public function get_thumbnail($key = 0)
     {
          $thumbnails = $this->get_thumbnails();
          if (isset($thumbnails[$key]))
          {
               return $thumbnails[$key];
          }
          else
          {
               return null;
          }
     }
     
     public function get_thumbnails()
     {
          if ($this->thumbnails !== null)
          {
               return $this->thumbnails;
          }
          else
          {
               return null;
          }
     }
     
     public function get_title()
     {
          if ($this->title !== null)
          {
               return $this->title;
          }
          else
          {
               return null;
          }
     }
     
     public function get_type()
     {
          if ($this->type !== null)
          {
               return $this->type;
          }
          else
          {
               return null;
          }
     }
     
     public function get_width()
     {
          if ($this->width !== null)
          {
               return $this->width;
          }
          else
          {
               return null;
          }
     }
     
     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';
          $mediaplayer = '';
          $widescreen = false;
          $handler = $this->get_handler();
          $type = $this->get_real_type();
          // Process options and reassign values as necessary
          if (is_array($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;
                              case 'mediaplayer':
                                   $mediaplayer = $opt[1];
                                   break;
                              case 'widescreen':
                                   $widescreen = $opt[1];
                                   break;
                         }
                    }
               }
          }
          $mime = explode('/', $type, 2);
          $mime = $mime[0];
          // Process values for 'auto'
          if ($width === 'auto')
          {
               if ($mime === 'video')
               {
                    if ($height === 'auto')
                    {
                         $width = 480;
                    }
                    elseif ($widescreen)
                    {
                         $width = round((intval($height)/9)*16);
                    }
                    else
                    {
                         $width = round((intval($height)/3)*4);
                    }
               }
               else
               {
                    $width = '100%';
               }
          }
          if ($height === 'auto')
          {
               if ($mime === 'audio')
               {
                    $height = 0;
               }
               elseif ($mime === 'video')
               {
                    if ($width === 'auto')
                    {
                         if ($widescreen)
                         {
                              $height = 270;
                         }
                         else
                         {
                              $height = 360;
                         }
                    }
                    elseif ($widescreen)
                    {
                         $height = round((intval($width)/16)*9);
                    }
                    else
                    {
                         $height = round((intval($width)/4)*3);
                    }
               }
               else
               {
                    $height = 376;
               }
          }
          elseif ($mime === 'audio')
          {
               $height = 0;
          }
          // Set proper placeholder value
          if ($mime === 'audio')
          {
               $placeholder = $audio;
          }
          elseif ($mime === 'video')
          {
               $placeholder = $video;
          }
          $embed = '';
          // Flash
          if ($handler === 'flash')
          {
               if ($native)
               {
                    $embed .= "<embed src=\"" . $this->get_link() . "\" pluginspage=\"http://adobe.com/go/getflashplayer\" type=\"$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', '$type');</script>";
               }
          }
          // Flash Media Player file types.
          // Preferred handler for MP3 file types.
          elseif ($handler === 'fmedia' || ($handler === 'mp3' && $mediaplayer !== ''))
          {
               $height += 20;
               if ($native)
               {
                    $embed .= "<embed src=\"$mediaplayer\" pluginspage=\"http://adobe.com/go/getflashplayer\" type=\"application/x-shockwave-flash\" quality=\"high\" width=\"$width\" height=\"$height\" wmode=\"transparent\" flashvars=\"file=" . rawurlencode($this->get_link().'?file_extension=.'.$this->get_extension()) . "&autostart=false&repeat=$loop&showdigits=true&showfsbutton=false\"></embed>";
               }
               else
               {
                    $embed .= "<script type='text/javascript'>embed_flv('$width', '$height', '" . rawurlencode($this->get_link().'?file_extension=.'.$this->get_extension()) . "', '$placeholder', '$loop', '$mediaplayer');</script>";
               }
          }
          // QuickTime 7 file types.  Need to test with QuickTime 6.
          // Only handle MP3's if the Flash Media Player is not present.
          elseif ($handler === 'quicktime' || ($handler === 'mp3' && $mediaplayer === ''))
          {
               $height += 16;
               if ($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://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://apple.com/quicktime/download/\"></embed>";
                    }
               }
               else
               {
                    $embed .= "<script type='text/javascript'>embed_quicktime('$type', '$bgcolor', '$width', '$height', '" . $this->get_link() . "', '$placeholder', '$loop');</script>";
               }
          }
          // Windows Media
          elseif ($handler === 'wmedia')
          {
               $height += 45;
               if ($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;
     }
     
     public function get_real_type($find_handler = false)
     {
          // Mime-types by handler.
          $types_flash = array('application/x-shockwave-flash', 'application/futuresplash'); // Flash
          $types_fmedia = array('video/flv', 'video/x-flv','flv-application/octet-stream'); // Flash Media Player
          $types_quicktime = array('audio/3gpp', 'audio/3gpp2', 'audio/aac', 'audio/x-aac', 'audio/aiff', 'audio/x-aiff', 'audio/mid', 'audio/midi', 'audio/x-midi', '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'); // QuickTime
          $types_wmedia = 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'); // Windows Media
          $types_mp3 = array('audio/mp3', 'audio/x-mp3', 'audio/mpeg', 'audio/x-mpeg'); // MP3
          if ($this->get_type() !== null)
          {
               $type = strtolower($this->type);
          }
          else
          {
               $type = null;
          }
          // If we encounter an unsupported mime-type, check the file extension and guess intelligently.
          if (!in_array($type, array_merge($types_flash, $types_fmedia, $types_quicktime, $types_wmedia, $types_mp3)))
          {
               switch (strtolower($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 'flv':
                         $type = 'video/x-flv';
                         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':
                         $type = 'application/x-shockwave-flash';
                         break;
               }
          }
          if ($find_handler)
          {
               if (in_array($type, $types_flash))
               {
                    return 'flash';
               }
               elseif (in_array($type, $types_fmedia))
               {
                    return 'fmedia';
               }
               elseif (in_array($type, $types_quicktime))
               {
                    return 'quicktime';
               }
               elseif (in_array($type, $types_wmedia))
               {
                    return 'wmedia';
               }
               elseif (in_array($type, $types_mp3))
               {
                    return 'mp3';
               }
               else
               {
                    return null;
               }
          }
          else
          {
               return $type;
          }
     }
}
class SimplePie_Exception extends Exception
{
}
class SimplePie_File
{
     var $url;
     var $useragent;
     var $success = true;
     var $headers = array();
     var $body;
     var $status_code;
     var $redirects = 0;
     var $error;
     var $method = SIMPLEPIE_FILE_SOURCE_NONE;
     public function __construct($url, $timeout = 10, $redirects = 5, $headers = null, $useragent = null, $force_fsockopen = false)
     {
          if (class_exists('idna_convert'))
          {
               $idn = new idna_convert();
               $parsed = SimplePie_Misc::parse_url($url);
               $url = SimplePie_Misc::compress_parse_url($parsed['scheme'], $idn->encode($parsed['authority']), $parsed['path'], $parsed['query'], $parsed['fragment']);
          }
          $this->url = $url;
          $this->useragent = $useragent;
          if (preg_match('/^http(s)?:\/\//i', $url))
          {
               if ($useragent === null)
               {
                    $useragent = ini_get('user_agent');
                    $this->useragent = $useragent;
               }
               if (!is_array($headers))
               {
                    $headers = array();
               }
               if (!$force_fsockopen && function_exists('curl_exec'))
               {
                    $this->method = SIMPLEPIE_FILE_SOURCE_REMOTE | SIMPLEPIE_FILE_SOURCE_CURL;
                    $fp = curl_init();
                    $headers2 = array();
                    foreach ($headers as $key => $value)
                    {
                         $headers2[] = "$key: $value";
                    }
                    if (version_compare(SimplePie_Misc::get_curl_version(), '7.10.5', '>='))
                    {
                         curl_setopt($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_CONNECTTIMEOUT, $timeout);
                    curl_setopt($fp, CURLOPT_REFERER, $url);
                    curl_setopt($fp, CURLOPT_USERAGENT, $useragent);
                    curl_setopt($fp, CURLOPT_HTTPHEADER, $headers2);
                    if (!ini_get('open_basedir') && !ini_get('safe_mode') && version_compare(SimplePie_Misc::get_curl_version(), '7.15.2', '>='))
                    {
                         curl_setopt($fp, CURLOPT_FOLLOWLOCATION, 1);
                         curl_setopt($fp, CURLOPT_MAXREDIRS, $redirects);
                    }
                    $this->headers = curl_exec($fp);
                    if (curl_errno($fp) === 23 || curl_errno($fp) === 61)
                    {
                         curl_setopt($fp, CURLOPT_ENCODING, 'none');
                         $this->headers = curl_exec($fp);
                    }
                    if (curl_errno($fp))
                    {
                         $this->error = 'cURL error ' . curl_errno($fp) . ': ' . curl_error($fp);
                         $this->success = false;
                    }
                    else
                    {
                         $info = curl_getinfo($fp);
                         curl_close($fp);
                         $this->headers = explode("\r\n\r\n", $this->headers, $info['redirect_count'] + 1);
                         $this->headers = array_pop($this->headers);
                         $parser = new SimplePie_HTTP_Parser($this->headers);
                         if ($parser->parse())
                         {
                              $this->headers = $parser->headers;
                              $this->body = $parser->body;
                              $this->status_code = $parser->status_code;
                              if ((in_array($this->status_code, array(300, 301, 302, 303, 307)) || $this->status_code > 307 && $this->status_code < 400) && isset($this->headers['location']) && $this->redirects < $redirects)
                              {
                                   $this->redirects++;
                                   $location = SimplePie_Misc::absolutize_url($this->headers['location'], $url);
                                   return $this->__construct($location, $timeout, $redirects, $headers, $useragent, $force_fsockopen);
                              }
                         }
                    }
               }
               else
               {
                    $this->method = SIMPLEPIE_FILE_SOURCE_REMOTE | SIMPLEPIE_FILE_SOURCE_FSOCKOPEN;
                    $url_parts = parse_url($url);
                    $socket_host = $url_parts['host'];
                    if (isset($url_parts['scheme']) && strtolower($url_parts['scheme']) === 'https')
                    {
                         $socket_host = "ssl://$url_parts[host]";
                         $url_parts['port'] = 443;
                    }
                    if (!isset($url_parts['port']))
                    {
                         $url_parts['port'] = 80;
                    }
                    $fp = @fsockopen($socket_host, $url_parts['port'], $errno, $errstr, $timeout);
                    if (!$fp)
                    {
                         $this->error = 'fsockopen error: ' . $errstr;
                         $this->success = false;
                    }
                    else
                    {
                         stream_set_timeout($fp, $timeout);
                         if (isset($url_parts['path']))
                         {
                              if (isset($url_parts['query']))
                              {
                                   $get = "$url_parts[path]?$url_parts[query]";
                              }
                              else
                              {
                                   $get = $url_parts['path'];
                              }
                         }
                         else
                         {
                              $get = '/';
                         }
                         $out = "GET $get HTTP/1.1\r\n";
                         $out .= "Host: $url_parts[host]\r\n";
                         $out .= "User-Agent: $useragent\r\n";
                         if (extension_loaded('zlib'))
                         {
                              $out .= "Accept-Encoding: x-gzip,gzip,deflate\r\n";
                         }
                         if (isset($url_parts['user']) && isset($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";
                         }
                         $out .= "Connection: Close\r\n\r\n";
                         fwrite($fp, $out);
                         $info = stream_get_meta_data($fp);
                         $this->headers = '';
                         while (!$info['eof'] && !$info['timed_out'])
                         {
                              $this->headers .= fread($fp, 1160);
                              $info = stream_get_meta_data($fp);
                         }
                         if (!$info['timed_out'])
                         {
                              $parser = new SimplePie_HTTP_Parser($this->headers);
                              if ($parser->parse())
                              {
                                   $this->headers = $parser->headers;
                                   $this->body = $parser->body;
                                   $this->status_code = $parser->status_code;
                                   if ((in_array($this->status_code, array(300, 301, 302, 303, 307)) || $this->status_code > 307 && $this->status_code < 400) && isset($this->headers['location']) && $this->redirects < $redirects)
                                   {
                                        $this->redirects++;
                                        $location = SimplePie_Misc::absolutize_url($this->headers['location'], $url);
                                        return $this->__construct($location, $timeout, $redirects, $headers, $useragent, $force_fsockopen);
                                   }
                                   if (isset($this->headers['content-encoding']))
                                   {
                                        // Hey, we act dumb elsewhere, so let's do that here too
                                        switch (strtolower(trim($this->headers['content-encoding'], "\x09\x0A\x0D\x20")))
                                        {
                                             case 'gzip':
                                             case 'x-gzip':
                                                  $decoder = new SimplePie_gzdecode($this->body);
                                                  if (!$decoder->parse())
                                                  {
                                                       $this->error = 'Unable to decode HTTP "gzip" stream';
                                                       $this->success = false;
                                                  }
                                                  else
                                                  {
                                                       $this->body = $decoder->data;
                                                  }
                                                  break;
                                             case 'deflate':
                                                  if (($decompressed = gzinflate($this->body)) !== false)
                                                  {
                                                       $this->body = $decompressed;
                                                  }
                                                  else if (($decompressed = gzuncompress($this->body)) !== false)
                                                  {
                                                       $this->body = $decompressed;
                                                  }
                                                  else if (function_exists('gzdecode') && ($decompressed = gzdecode($this->body)) !== false)
                                                  {
                                                       $this->body = $decompressed;
                                                  }
                                                  else
                                                  {
                                                       $this->error = 'Unable to decode HTTP "deflate" stream';
                                                       $this->success = false;
                                                  }
                                                  break;
                                             default:
                                                  $this->error = 'Unknown content coding';
                                                  $this->success = false;
                                        }
                                   }
                              }
                         }
                         else
                         {
                              $this->error = 'fsocket timed out';
                              $this->success = false;
                         }
                         fclose($fp);
                    }
               }
          }
          else
          {
               $this->method = SIMPLEPIE_FILE_SOURCE_LOCAL | SIMPLEPIE_FILE_SOURCE_FILE_GET_CONTENTS;
               if (!$this->body = file_get_contents($url))
               {
                    $this->error = 'file_get_contents could not read the file';
                    $this->success = false;
               }
          }
     }
}
class SimplePie_gzdecode
{
     
     var $compressed_data;
     
     var $compressed_size;
     
     var $min_compressed_size = 18;
     
     var $position = 0;
     
     var $flags;
     
     var $data;
     
     var $MTIME;
     
     var $XFL;
     
     var $OS;
     
     var $SI1;
     
     var $SI2;
     
     var $extra_field;
     
     var $filename;
     
     var $comment;
     
     public function __set($name, $value)
     {
          trigger_error("Cannot write property $name", E_USER_ERROR);
     }
     
     public function __construct($data)
     {
          $this->compressed_data = $data;
          $this->compressed_size = strlen($data);
     }
     
     public function parse()
     {
          if ($this->compressed_size >= $this->min_compressed_size)
          {
               // Check ID1, ID2, and CM
               if (substr($this->compressed_data, 0, 3) !== "\x1F\x8B\x08")
               {
                    return false;
               }
               // Get the FLG (FLaGs)
               $this->flags = ord($this->compressed_data[3]);
               // FLG bits above (1 << 4) are reserved
               if ($this->flags > 0x1F)
               {
                    return false;
               }
               // Advance the pointer after the above
               $this->position += 4;
               // MTIME
               $mtime = substr($this->compressed_data, $this->position, 4);
               // Reverse the string if we're on a big-endian arch because l is the only signed long and is machine endianness
               if (current(unpack('S', "\x00\x01")) === 1)
               {
                    $mtime = strrev($mtime);
               }
               $this->MTIME = current(unpack('l', $mtime));
               $this->position += 4;
               // Get the XFL (eXtra FLags)
               $this->XFL = ord($this->compressed_data[$this->position++]);
               // Get the OS (Operating System)
               $this->OS = ord($this->compressed_data[$this->position++]);
               // Parse the FEXTRA
               if ($this->flags & 4)
               {
                    // Read subfield IDs
                    $this->SI1 = $this->compressed_data[$this->position++];
                    $this->SI2 = $this->compressed_data[$this->position++];
                    // SI2 set to zero is reserved for future use
                    if ($this->SI2 === "\x00")
                    {
                         return false;
                    }
                    // Get the length of the extra field
                    $len = current(unpack('v', substr($this->compressed_data, $this->position, 2)));
                    $this->position += 2;
                    // Check the length of the string is still valid
                    $this->min_compressed_size += $len + 4;
                    if ($this->compressed_size >= $this->min_compressed_size)
                    {
                         // Set the extra field to the given data
                         $this->extra_field = substr($this->compressed_data, $this->position, $len);
                         $this->position += $len;
                    }
                    else
                    {
                         return false;
                    }
               }
               // Parse the FNAME
               if ($this->flags & 8)
               {
                    // Get the length of the filename
                    $len = strcspn($this->compressed_data, "\x00", $this->position);
                    // Check the length of the string is still valid
                    $this->min_compressed_size += $len + 1;
                    if ($this->compressed_size >= $this->min_compressed_size)
                    {
                         // Set the original filename to the given string
                         $this->filename = substr($this->compressed_data, $this->position, $len);
                         $this->position += $len + 1;
                    }
                    else
                    {
                         return false;
                    }
               }
               // Parse the FCOMMENT
               if ($this->flags & 16)
               {
                    // Get the length of the comment
                    $len = strcspn($this->compressed_data, "\x00", $this->position);
                    // Check the length of the string is still valid
                    $this->min_compressed_size += $len + 1;
                    if ($this->compressed_size >= $this->min_compressed_size)
                    {
                         // Set the original comment to the given string
                         $this->comment = substr($this->compressed_data, $this->position, $len);
                         $this->position += $len + 1;
                    }
                    else
                    {
                         return false;
                    }
               }
               // Parse the FHCRC
               if ($this->flags & 2)
               {
                    // Check the length of the string is still valid
                    $this->min_compressed_size += $len + 2;
                    if ($this->compressed_size >= $this->min_compressed_size)
                    {
                         // Read the CRC
                         $crc = current(unpack('v', substr($this->compressed_data, $this->position, 2)));
                         // Check the CRC matches
                         if ((crc32(substr($this->compressed_data, 0, $this->position)) & 0xFFFF) === $crc)
                         {
                              $this->position += 2;
                         }
                         else
                         {
                              return false;
                         }
                    }
                    else
                    {
                         return false;
                    }
               }
               // Decompress the actual data
               if (($this->data = gzinflate(substr($this->compressed_data, $this->position, -8))) === false)
               {
                    return false;
               }
               else
               {
                    $this->position = $this->compressed_size - 8;
               }
               // Check CRC of data
               $crc = current(unpack('V', substr($this->compressed_data, $this->position, 4)));
               $this->position += 4;
               /*if (extension_loaded('hash') && sprintf('%u', current(unpack('V', hash('crc32b', $this->data)))) !== sprintf('%u', $crc))
               {
                    return false;
               }*/
               // Check ISIZE of data
               $isize = current(unpack('V', substr($this->compressed_data, $this->position, 4)));
               $this->position += 4;
               if (sprintf('%u', strlen($this->data) & 0xFFFFFFFF) !== sprintf('%u', $isize))
               {
                    return false;
               }
               // Wow, against all odds, we've actually got a valid gzip string
               return true;
          }
          else
          {
               return false;
          }
     }
}
class SimplePie_HTTP_Parser
{
     
     public $http_version = 0.0;
     
     public $status_code = 0;
     
     public $reason = '';
     
     public $headers = array();
     
     public $body = '';
     
     protected $state = 'http_version';
     
     protected $data = '';
     
     protected $data_length = 0;
     
     protected $position = 0;
     
     protected $name = '';
     
     protected $value = '';
     
     public function __construct($data)
     {
          $this->data = $data;
          $this->data_length = strlen($this->data);
     }
     
     public function parse()
     {
          while ($this->state && $this->state !== 'emit' && $this->has_data())
          {
               $state = $this->state;
               $this->$state();
          }
          $this->data = '';
          if ($this->state === 'emit' || $this->state === 'body')
          {
               return true;
          }
          else
          {
               $this->http_version = '';
               $this->status_code = '';
               $this->reason = '';
               $this->headers = array();
               $this->body = '';
               return false;
          }
     }
     
     protected function has_data()
     {
          return (bool) ($this->position < $this->data_length);
     }
     
     protected function is_linear_whitespace()
     {
          return (bool) ($this->data[$this->position] === "\x09"
               || $this->data[$this->position] === "\x20"
               || ($this->data[$this->position] === "\x0A"
                    && isset($this->data[$this->position + 1])
                    && ($this->data[$this->position + 1] === "\x09" || $this->data[$this->position + 1] === "\x20")));
     }
     
     protected function http_version()
     {
          if (strpos($this->data, "\x0A") !== false && strtoupper(substr($this->data, 0, 5)) === 'HTTP/')
          {
               $len = strspn($this->data, '0123456789.', 5);
               $this->http_version = substr($this->data, 5, $len);
               $this->position += 5 + $len;
               if (substr_count($this->http_version, '.') <= 1)
               {
                    $this->http_version = (float) $this->http_version;
                    $this->position += strspn($this->data, "\x09\x20", $this->position);
                    $this->state = 'status';
               }
               else
               {
                    $this->state = false;
               }
          }
          else
          {
               $this->state = false;
          }
     }
     
     protected function status()
     {
          if ($len = strspn($this->data, '0123456789', $this->position))
          {
               $this->status_code = (int) substr($this->data, $this->position, $len);
               $this->position += $len;
               $this->state = 'reason';
          }
          else
          {
               $this->state = false;
          }
     }
     
     protected function reason()
     {
          $len = strcspn($this->data, "\x0A", $this->position);
          $this->reason = trim(substr($this->data, $this->position, $len), "\x09\x0D\x20");
          $this->position += $len + 1;
          $this->state = 'new_line';
     }
     
     protected function new_line()
     {
          $this->value = trim($this->value, "\x0D\x20");
          if ($this->name !== '' && $this->value !== '')
          {
               $this->name = strtolower($this->name);
               // We should only use the last Content-Type header. c.f. issue #1
               if (isset($this->headers[$this->name]) && $this->name !== 'content-type')
               {
                    $this->headers[$this->name] .= ', ' . $this->value;
               }
               else
               {
                    $this->headers[$this->name] = $this->value;
               }
          }
          $this->name = '';
          $this->value = '';
          if (substr($this->data[$this->position], 0, 2) === "\x0D\x0A")
          {
               $this->position += 2;
               $this->state = 'body';
          }
          elseif ($this->data[$this->position] === "\x0A")
          {
               $this->position++;
               $this->state = 'body';
          }
          else
          {
               $this->state = 'name';
          }
     }
     
     protected function name()
     {
          $len = strcspn($this->data, "\x0A:", $this->position);
          if (isset($this->data[$this->position + $len]))
          {
               if ($this->data[$this->position + $len] === "\x0A")
               {
                    $this->position += $len;
                    $this->state = 'new_line';
               }
               else
               {
                    $this->name = substr($this->data, $this->position, $len);
                    $this->position += $len + 1;
                    $this->state = 'value';
               }
          }
          else
          {
               $this->state = false;
          }
     }
     
     protected function linear_whitespace()
     {
          do
          {
               if (substr($this->data, $this->position, 2) === "\x0D\x0A")
               {
                    $this->position += 2;
               }
               elseif ($this->data[$this->position] === "\x0A")
               {
                    $this->position++;
               }
               $this->position += strspn($this->data, "\x09\x20", $this->position);
          } while ($this->has_data() && $this->is_linear_whitespace());
          $this->value .= "\x20";
     }
     
     protected function value()
     {
          if ($this->is_linear_whitespace())
          {
               $this->linear_whitespace();
          }
          else
          {
               switch ($this->data[$this->position])
               {
                    case '"':
                         // Workaround for ETags: we have to include the quotes as
                         // part of the tag.
                         if (strtolower($this->name) === 'etag')
                         {
                              $this->value .= '"';
                              $this->position++;
                              $this->state = 'value_char';
                              break;
                         }
                         $this->position++;
                         $this->state = 'quote';
                         break;
                    case "\x0A":
                         $this->position++;
                         $this->state = 'new_line';
                         break;
                    default:
                         $this->state = 'value_char';
                         break;
               }
          }
     }
     
     protected function value_char()
     {
          $len = strcspn($this->data, "\x09\x20\x0A\"", $this->position);
          $this->value .= substr($this->data, $this->position, $len);
          $this->position += $len;
          $this->state = 'value';
     }
     
     protected function quote()
     {
          if ($this->is_linear_whitespace())
          {
               $this->linear_whitespace();
          }
          else
          {
               switch ($this->data[$this->position])
               {
                    case '"':
                         $this->position++;
                         $this->state = 'value';
                         break;
                    case "\x0A":
                         $this->position++;
                         $this->state = 'new_line';
                         break;
                    case '\\':
                         $this->position++;
                         $this->state = 'quote_escaped';
                         break;
                    default:
                         $this->state = 'quote_char';
                         break;
               }
          }
     }
     
     protected function quote_char()
     {
          $len = strcspn($this->data, "\x09\x20\x0A\"\\", $this->position);
          $this->value .= substr($this->data, $this->position, $len);
          $this->position += $len;
          $this->state = 'value';
     }
     
     protected function quote_escaped()
     {
          $this->value .= $this->data[$this->position];
          $this->position++;
          $this->state = 'quote';
     }
     
     protected function body()
     {
          $this->body = substr($this->data, $this->position);
          if (!empty($this->headers['transfer-encoding']))
          {
               unset($this->headers['transfer-encoding']);
               $this->state = 'chunked';
          }
          else
          {
               $this->state = 'emit';
          }
     }
     
     protected function chunked()
     {
          if (!preg_match('/^([0-9a-f]+)[^\r\n]*\r\n/i', trim($this->body)))
          {
               $this->state = 'emit';
               return;
          }
          $decoded = '';
          $encoded = $this->body;
          while (true)
          {
               $is_chunked = (bool) preg_match( '/^([0-9a-f]+)[^\r\n]*\r\n/i', $encoded, $matches );
               if (!$is_chunked)
               {
                    // Looks like it's not chunked after all
                    $this->state = 'emit';
                    return;
               }
               $length = hexdec(trim($matches[1]));
               if ($length === 0)
               {
                    // Ignore trailer headers
                    $this->state = 'emit';
                    $this->body = $decoded;
                    return;
               }
               $chunk_length = strlen($matches[0]);
               $decoded .= $part = substr($encoded, $chunk_length, $length);
               $encoded = substr($encoded, $chunk_length + $length + 2);
               if (trim($encoded) === '0' || empty($encoded))
               {
                    $this->state = 'emit';
                    $this->body = $decoded;
                    return;
               }
          }
     }
}
class SimplePie_IRI
{
     
     protected $scheme = null;
     
     protected $iuserinfo = null;
     
     protected $ihost = null;
     
     protected $port = null;
     
     protected $ipath = '';
     
     protected $iquery = null;
     
     protected $ifragment = null;
     
     protected $normalization = array(
          'acap' => array(
               'port' => 674
          ),
          'dict' => array(
               'port' => 2628
          ),
          'file' => array(
               'ihost' => 'localhost'
          ),
          'http' => array(
               'port' => 80,
               'ipath' => '/'
          ),
          'https' => array(
               'port' => 443,
               'ipath' => '/'
          ),
     );
     
     public function __toString()
     {
          return $this->get_iri();
     }
     
     public function __set($name, $value)
     {
          if (method_exists($this, 'set_' . $name))
          {
               call_user_func(array($this, 'set_' . $name), $value);
          }
          elseif (
                  $name === 'iauthority'
               || $name === 'iuserinfo'
               || $name === 'ihost'
               || $name === 'ipath'
               || $name === 'iquery'
               || $name === 'ifragment'
          )
          {
               call_user_func(array($this, 'set_' . substr($name, 1)), $value);
          }
     }
     
     public function __get($name)
     {
          // isset() returns false for null, we don't want to do that
          // Also why we use array_key_exists below instead of isset()
          $props = get_object_vars($this);
          if (
               $name === 'iri' ||
               $name === 'uri' ||
               $name === 'iauthority' ||
               $name === 'authority'
          )
          {
               $return = $this->{"get_$name"}();
          }
          elseif (array_key_exists($name, $props))
          {
               $return = $this->$name;
          }
          // host -> ihost
          elseif (($prop = 'i' . $name) && array_key_exists($prop, $props))
          {
               $name = $prop;
               $return = $this->$prop;
          }
          // ischeme -> scheme
          elseif (($prop = substr($name, 1)) && array_key_exists($prop, $props))
          {
               $name = $prop;
               $return = $this->$prop;
          }
          else
          {
               trigger_error('Undefined property: ' . get_class($this) . '::' . $name, E_USER_NOTICE);
               $return = null;
          }
          if ($return === null && isset($this->normalization[$this->scheme][$name]))
          {
               return $this->normalization[$this->scheme][$name];
          }
          else
          {
               return $return;
          }
     }
     
     public function __isset($name)
     {
          if (method_exists($this, 'get_' . $name) || isset($this->$name))
          {
               return true;
          }
          else
          {
               return false;
          }
     }
     
     public function __unset($name)
     {
          if (method_exists($this, 'set_' . $name))
          {
               call_user_func(array($this, 'set_' . $name), '');
          }
     }
     
     public function __construct($iri = null)
     {
          $this->set_iri($iri);
     }
     
     public static function absolutize($base, $relative)
     {
          if (!($relative instanceof SimplePie_IRI))
          {
               $relative = new SimplePie_IRI($relative);
          }
          if (!$relative->is_valid())
          {
               return false;
          }
          elseif ($relative->scheme !== null)
          {
               return clone $relative;
          }
          else
          {
               if (!($base instanceof SimplePie_IRI))
               {
                    $base = new SimplePie_IRI($base);
               }
               if ($base->scheme !== null && $base->is_valid())
               {
                    if ($relative->get_iri() !== '')
                    {
                         if ($relative->iuserinfo !== null || $relative->ihost !== null || $relative->port !== null)
                         {
                              $target = clone $relative;
                              $target->scheme = $base->scheme;
                         }
                         else
                         {
                              $target = new SimplePie_IRI;
                              $target->scheme = $base->scheme;
                              $target->iuserinfo = $base->iuserinfo;
                              $target->ihost = $base->ihost;
                              $target->port = $base->port;
                              if ($relative->ipath !== '')
                              {
                                   if ($relative->ipath[0] === '/')
                                   {
                                        $target->ipath = $relative->ipath;
                                   }
                                   elseif (($base->iuserinfo !== null || $base->ihost !== null || $base->port !== null) && $base->ipath === '')
                                   {
                                        $target->ipath = '/' . $relative->ipath;
                                   }
                                   elseif (($last_segment = strrpos($base->ipath, '/')) !== false)
                                   {
                                        $target->ipath = substr($base->ipath, 0, $last_segment + 1) . $relative->ipath;
                                   }
                                   else
                                   {
                                        $target->ipath = $relative->ipath;
                                   }
                                   $target->ipath = $target->remove_dot_segments($target->ipath);
                                   $target->iquery = $relative->iquery;
                              }
                              else
                              {
                                   $target->ipath = $base->ipath;
                                   if ($relative->iquery !== null)
                                   {
                                        $target->iquery = $relative->iquery;
                                   }
                                   elseif ($base->iquery !== null)
                                   {
                                        $target->iquery = $base->iquery;
                                   }
                              }
                              $target->ifragment = $relative->ifragment;
                         }
                    }
                    else
                    {
                         $target = clone $base;
                         $target->ifragment = null;
                    }
                    $target->scheme_normalization();
                    return $target;
               }
               else
               {
                    return false;
               }
          }
     }
     
     protected function parse_iri($iri)
     {
          $iri = trim($iri, "\x20\x09\x0A\x0C\x0D");
          if (preg_match('/^((?P<scheme>[^:\/?#]+):)?(\/\/(?P<authority>[^\/?#]*))?(?P<path>[^?#]*)(\?(?P<query>[^#]*))?(#(?P<fragment>.*))?$/', $iri, $match))
          {
               if ($match[1] === '')
               {
                    $match['scheme'] = null;
               }
               if (!isset($match[3]) || $match[3] === '')
               {
                    $match['authority'] = null;
               }
               if (!isset($match[5]))
               {
                    $match['path'] = '';
               }
               if (!isset($match[6]) || $match[6] === '')
               {
                    $match['query'] = null;
               }
               if (!isset($match[8]) || $match[8] === '')
               {
                    $match['fragment'] = null;
               }
               return $match;
          }
          else
          {
               // This can occur when a paragraph is accidentally parsed as a URI
               return false;
          }
     }
     
     protected function remove_dot_segments($input)
     {
          $output = '';
          while (strpos($input, './') !== false || strpos($input, '/.') !== false || $input === '.' || $input === '..')
          {
               // A: If the input buffer begins with a prefix of "../" or "./", then remove that prefix from the input buffer; otherwise,
               if (strpos($input, '../') === 0)
               {
                    $input = substr($input, 3);
               }
               elseif (strpos($input, './') === 0)
               {
                    $input = substr($input, 2);
               }
               // B: if the input buffer begins with a prefix of "/./" or "/.", where "." is a complete path segment, then replace that prefix with "/" in the input buffer; otherwise,
               elseif (strpos($input, '/./') === 0)
               {
                    $input = substr($input, 2);
               }
               elseif ($input === '/.')
               {
                    $input = '/';
               }
               // C: if the input buffer begins with a prefix of "/../" or "/..", where ".." is a complete path segment, then replace that prefix with "/" in the input buffer and remove the last segment and its preceding "/" (if any) from the output buffer; otherwise,
               elseif (strpos($input, '/../') === 0)
               {
                    $input = substr($input, 3);
                    $output = substr_replace($output, '', strrpos($output, '/'));
               }
               elseif ($input === '/..')
               {
                    $input = '/';
                    $output = substr_replace($output, '', strrpos($output, '/'));
               }
               // D: if the input buffer consists only of "." or "..", then remove that from the input buffer; otherwise,
               elseif ($input === '.' || $input === '..')
               {
                    $input = '';
               }
               // E: move the first path segment in the input buffer to the end of the output buffer, including the initial "/" character (if any) and any subsequent characters up to, but not including, the next "/" character or the end of the input buffer
               elseif (($pos = strpos($input, '/', 1)) !== false)
               {
                    $output .= substr($input, 0, $pos);
                    $input = substr_replace($input, '', 0, $pos);
               }
               else
               {
                    $output .= $input;
                    $input = '';
               }
          }
          return $output . $input;
     }
     
     protected function replace_invalid_with_pct_encoding($string, $extra_chars, $iprivate = false)
     {
          // Normalize as many pct-encoded sections as possible
          $string = preg_replace_callback('/(?:%[A-Fa-f0-9]{2})+/', array($this, 'remove_iunreserved_percent_encoded'), $string);
          // Replace invalid percent characters
          $string = preg_replace('/%(?![A-Fa-f0-9]{2})/', '%25', $string);
          // Add unreserved and % to $extra_chars (the latter is safe because all
          // pct-encoded sections are now valid).
          $extra_chars .= 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789-._~%';
          // Now replace any bytes that aren't allowed with their pct-encoded versions
          $position = 0;
          $strlen = strlen($string);
          while (($position += strspn($string, $extra_chars, $position)) < $strlen)
          {
               $value = ord($string[$position]);
               // Start position
               $start = $position;
               // By default we are valid
               $valid = true;
               // No one byte sequences are valid due to the while.
               // Two byte sequence:
               if (($value & 0xE0) === 0xC0)
               {
                    $character = ($value & 0x1F) << 6;
                    $length = 2;
                    $remaining = 1;
               }
               // Three byte sequence:
               elseif (($value & 0xF0) === 0xE0)
               {
                    $character = ($value & 0x0F) << 12;
                    $length = 3;
                    $remaining = 2;
               }
               // Four byte sequence:
               elseif (($value & 0xF8) === 0xF0)
               {
                    $character = ($value & 0x07) << 18;
                    $length = 4;
                    $remaining = 3;
               }
               // Invalid byte:
               else
               {
                    $valid = false;
                    $length = 1;
                    $remaining = 0;
               }
               if ($remaining)
               {
                    if ($position + $length <= $strlen)
                    {
                         for ($position++; $remaining; $position++)
                         {
                              $value = ord($string[$position]);
                              // Check that the byte is valid, then add it to the character:
                              if (($value & 0xC0) === 0x80)
                              {
                                   $character |= ($value & 0x3F) << (--$remaining * 6);
                              }
                              // If it is invalid, count the sequence as invalid and reprocess the current byte:
                              else
                              {
                                   $valid = false;
                                   $position--;
                                   break;
                              }
                         }
                    }
                    else
                    {
                         $position = $strlen - 1;
                         $valid = false;
                    }
               }
               // Percent encode anything invalid or not in ucschar
               if (
                    // Invalid sequences
                    !$valid
                    // Non-shortest form sequences are invalid
                    || $length > 1 && $character <= 0x7F
                    || $length > 2 && $character <= 0x7FF
                    || $length > 3 && $character <= 0xFFFF
                    // Outside of range of ucschar codepoints
                    // Noncharacters
                    || ($character & 0xFFFE) === 0xFFFE
                    || $character >= 0xFDD0 && $character <= 0xFDEF
                    || (
                         // Everything else not in ucschar
                            $character > 0xD7FF && $character < 0xF900
                         || $character < 0xA0
                         || $character > 0xEFFFD
                    )
                    && (
                         // Everything not in iprivate, if it applies
                            !$iprivate
                         || $character < 0xE000
                         || $character > 0x10FFFD
                    )
               )
               {
                    // If we were a character, pretend we weren't, but rather an error.
                    if ($valid)
                         $position--;
                    for ($j = $start; $j <= $position; $j++)
                    {
                         $string = substr_replace($string, sprintf('%%%02X', ord($string[$j])), $j, 1);
                         $j += 2;
                         $position += 2;
                         $strlen += 2;
                    }
               }
          }
          return $string;
     }
     
     protected function remove_iunreserved_percent_encoded($match)
     {
          // As we just have valid percent encoded sequences we can just explode
          // and ignore the first member of the returned array (an empty string).
          $bytes = explode('%', $match[0]);
          // Initialize the new string (this is what will be returned) and that
          // there are no bytes remaining in the current sequence (unsurprising
          // at the first byte!).
          $string = '';
          $remaining = 0;
          // Loop over each and every byte, and set $value to its value
          for ($i = 1, $len = count($bytes); $i < $len; $i++)
          {
               $value = hexdec($bytes[$i]);
               // If we're the first byte of sequence:
               if (!$remaining)
               {
                    // Start position
                    $start = $i;
                    // By default we are valid
                    $valid = true;
                    // One byte sequence:
                    if ($value <= 0x7F)
                    {
                         $character = $value;
                         $length = 1;
                    }
                    // Two byte sequence:
                    elseif (($value & 0xE0) === 0xC0)
                    {
                         $character = ($value & 0x1F) << 6;
                         $length = 2;
                         $remaining = 1;
                    }
                    // Three byte sequence:
                    elseif (($value & 0xF0) === 0xE0)
                    {
                         $character = ($value & 0x0F) << 12;
                         $length = 3;
                         $remaining = 2;
                    }
                    // Four byte sequence:
                    elseif (($value & 0xF8) === 0xF0)
                    {
                         $character = ($value & 0x07) << 18;
                         $length = 4;
                         $remaining = 3;
                    }
                    // Invalid byte:
                    else
                    {
                         $valid = false;
                         $remaining = 0;
                    }
               }
               // Continuation byte:
               else
               {
                    // Check that the byte is valid, then add it to the character:
                    if (($value & 0xC0) === 0x80)
                    {
                         $remaining--;
                         $character |= ($value & 0x3F) << ($remaining * 6);
                    }
                    // If it is invalid, count the sequence as invalid and reprocess the current byte as the start of a sequence:
                    else
                    {
                         $valid = false;
                         $remaining = 0;
                         $i--;
                    }
               }
               // If we've reached the end of the current byte sequence, append it to Unicode::$data
               if (!$remaining)
               {
                    // Percent encode anything invalid or not in iunreserved
                    if (
                         // Invalid sequences
                         !$valid
                         // Non-shortest form sequences are invalid
                         || $length > 1 && $character <= 0x7F
                         || $length > 2 && $character <= 0x7FF
                         || $length > 3 && $character <= 0xFFFF
                         // Outside of range of iunreserved codepoints
                         || $character < 0x2D
                         || $character > 0xEFFFD
                         // Noncharacters
                         || ($character & 0xFFFE) === 0xFFFE
                         || $character >= 0xFDD0 && $character <= 0xFDEF
                         // Everything else not in iunreserved (this is all BMP)
                         || $character === 0x2F
                         || $character > 0x39 && $character < 0x41
                         || $character > 0x5A && $character < 0x61
                         || $character > 0x7A && $character < 0x7E
                         || $character > 0x7E && $character < 0xA0
                         || $character > 0xD7FF && $character < 0xF900
                    )
                    {
                         for ($j = $start; $j <= $i; $j++)
                         {
                              $string .= '%' . strtoupper($bytes[$j]);
                         }
                    }
                    else
                    {
                         for ($j = $start; $j <= $i; $j++)
                         {
                              $string .= chr(hexdec($bytes[$j]));
                         }
                    }
               }
          }
          // If we have any bytes left over they are invalid (i.e., we are
          // mid-way through a multi-byte sequence)
          if ($remaining)
          {
               for ($j = $start; $j < $len; $j++)
               {
                    $string .= '%' . strtoupper($bytes[$j]);
               }
          }
          return $string;
     }
     protected function scheme_normalization()
     {
          if (isset($this->normalization[$this->scheme]['iuserinfo']) && $this->iuserinfo === $this->normalization[$this->scheme]['iuserinfo'])
          {
               $this->iuserinfo = null;
          }
          if (isset($this->normalization[$this->scheme]['ihost']) && $this->ihost === $this->normalization[$this->scheme]['ihost'])
          {
               $this->ihost = null;
          }
          if (isset($this->normalization[$this->scheme]['port']) && $this->port === $this->normalization[$this->scheme]['port'])
          {
               $this->port = null;
          }
          if (isset($this->normalization[$this->scheme]['ipath']) && $this->ipath === $this->normalization[$this->scheme]['ipath'])
          {
               $this->ipath = '';
          }
          if (isset($this->normalization[$this->scheme]['iquery']) && $this->iquery === $this->normalization[$this->scheme]['iquery'])
          {
               $this->iquery = null;
          }
          if (isset($this->normalization[$this->scheme]['ifragment']) && $this->ifragment === $this->normalization[$this->scheme]['ifragment'])
          {