More misc fixes and rewrites (sorry, lame description)
[mailer.git] / inc / rdf.class.php
index 0552c36..33d82db 100644 (file)
@@ -1,5 +1,5 @@
 <?php
-/* $Id: rdf.class.php,v 1.40 2003/07/06 20:33:58 sts Exp $ */
+/* $Id$ */
 
 //
 // +----------------------------------------------------------------------+
 // +----------------------------------------------------------------------+
 
 /**
-* Class RSS Parser
-*
-* This class offers methods to parse RSS Files
-*
-* @link      http://www.fase4.com/rdf/ Latest release of this class
-* @package   rss
-* @copyright Copyright (c) 2001 fase4.com. All rights reserved.
-* @author    Stefan Saasen <s@fase4.com>
-* @version   1.7 ($Date: 2003/07/06 20:33:58 $) $Revision: 1.40 $
-* @access    public
-*/
+ * Class RSS Parser
+ *
+ * This class offers methods to parse RSS Files
+ *
+ * @link      http://www.fase4.com/rdf/ Latest release of this class
+ * @package   rss
+ * @copyright Copyright (c) 2001 fase4.com. All rights reserved.
+ * @author    Stefan Saasen <s@fase4.com>
+ * @author    Roland Haeder <webmaster@mxchange.org>
+ * @version   1.7 ($Date$Revision: 856 $
+ * @access    public
+ */
 
 class fase4_rdf {
 
-    /**
-    * Word-wrapping mode for description, set it to 0 do disable this feature! Ommits _use_nl2br!
-    *
-    * @access private
-    * @var    integer
-    */
-    var $_word_wrap = 0;
-
-    /**
-    * Wether to recode \n -> <BR> or not in description
-    *
-    * @access private
-    * @var    boolean
-    */
-    var $_use_nl2br = true;
-
-    /**
-    * Sets the decoding mode of the read data (UTF8 scrambles some german umlauts here!)
-    *
-    * "htmlentities" - Use the function htmlentities()
-    * "utf8_decode"  - Use the function ut8_decode() when you have UTF8 encoded text
-    *
-    * @access private
-    * @var    string
-    */
-    var $_decoding_mode = "utf8_decode";
-
-    /**
-    * If $_link_target is set a target='xxx' attribute in each <a /> and <form /> html tag will be added
-    *
-    * Possible values are "_blank", "_content", "_parent", "_self", "_top"
-    *
-    * @access private
-    * @var    string
-    */
-    var $_link_target = "_blank";
-
-    /**
-    * vars for proxy settings - Prox Host
-    *
-    * @access private
-    * @var      string
-    */
-    var $_phost = "";
-
-    /**
-    * vars for proxy settings - Prox Port
-    *
-    * @access private
-    * @var      string
-    */
-    var $_pport = "";
-
-    /**
-    * vars for proxy settings - Prox Username
-    *
-    * @access private
-    * @var      string
-    */
-    var $_pname = "";
-
-    /**
-    * vars for proxy settings - Prox Password
-    *
-    * @access private
-    * @var      string
-    */
-    var $_ppasswd = "";
-
-    /**
-    * just a flag for checking if proxy-support should be enabled
-    * set default to false (will be enabled if set_proxy is called)
-    *
-    * @access   private
-    * @see      set_proxy()
-    * @var      bool
-    */
-    var $_use_proxy = false;
-
-    /**
-    * just a flag for checking if proxy-support with authentication
-    * should be enabled
-    * set default to false (will be enabled if set_proxy is called)
-    *
-    * @access   private
-    * @see      set_proxy()
-    * @var      boolean
-    */
-    var $_use_proxy_auth = false;
-
-    /**
-    * The time the Files will be cached (in seconds).
-    *
-    * @access private
-    * @var    int
-    */
-    var $_refresh = 60;   // int
-
-    /**
-    * The Name of the cached File.
-    *
-    * @access private
-    * @var    string
-    */
-    var $_cached_file = "";   // String
-
-    /**
-    * Indicates whether the cached or the remote file was used.
-    *
-    * @access private
-    * @var    boolean
-    */
-    var $_use_cached_file = true;
-
-    /**
-    * (fast|normal) depends on _use_dynamic_display(). _use_dynamic_display( TRUE ) -> 'normal', otherwise 'fast'
-    *
-    * @access private
-    * @var    string
-    */
-    var $_cache_type = "fast";
-
-    /**
-    * The Name of the Remote File.
-    *
-    * @access private
-    * @var    string
-    */
-    var $_remote_file = "";
-
-    /**
-    * Path to the Cache Directory.
-    *
-    * @access private
-    * @var    string
-    */
-    var $_cache_dir = "cache/";  // String
-
-    /**
-    * Indicates whether the Creating of the Cache Directory needs to be done or not.
-    *
-    * @access private
-    * @var    boolean
-    */
-    var $_cache_dir_ok = false;
-
-    /**
-    * Type of the file to be parsed (RSS or RDF).
-    *
-    * The Type depends on the root node
-    *
-    * @access private
-    * @var    string
-    */
-    var $_type = "rss"; // string (rss or rdf)
-
-    /**
-    * Array of Display Settings.
-    *
-    * Specific Parameters can be set to hidden. These are:
-    * image, channel and textinput. If set to "hidden" those elements won't be displayed.
-    *
-    * @access private
-    * @var    array
-    */
-    var $_display_opt = array(
-               'build' => '',
-               'image' => '',
-               'channel' => '',
-               'textinput' => '',
-               'cache_update' => '',
-               'sitelink' => '',
-               'refid' => '',
-               'reflink' => '',
-    );
-
-    /**
-    * Defines the width attribute in the table that holds the rdf/rss representation
-    *
-    * @access private
-    * @var    int
-    * @see    see_table_width()
-    */
-    var $_table_width = "100%";
-
-    /**
-    * Indicates whether or not to use dynamic Display Settings
-    *
-    * @access private
-    * @var    array
-    */
-    var $_use_dynamic_display = false;
-
-    /**
-    * <item> count
-    *
-    * @access private
-    * @var    int
-    */
-    var $_item_count = 0;
-
-    /**
-    * No of max <item>s
-    *
-    * @access private
-    * @var    boolean
-    */
-    var $_max_count = false;
-
-    /**
-    * Array containing the content of <channel />
-    *
-    * @access private
-    * @var    array
-    */
-    var $_array_channel = array();
-
-    /**
-    * Array containing the content of each <item />
-    *
-    * @access private
-    * @var    array
-    */
-    var $_array_item = array();
-
-    /**
-    * Array containing the content of <textinput />
-    *
-    * @access private
-    * @var    array
-    */
-    var $_array_textinput = array();
-
-    /**
-    * Array containing the content of <image />
-    *
-    * @access private
-    * @var    array
-    */
-    var $_array_image = array();
-
-    /**
-    * Array containing the Channel content. Just For internal XML Parser Purposes.
-    *
-    * @access private
-    * @var    array
-    */
-    var $_citem = array();
-
-    /**
-    * Array containing the Channel Parser Depth. Just For internal XML Parser Purposes.
-    *
-    * @access private
-    * @var    array
-    */
-    var $_cdepth = array();
-
-    /**
-    * Array containing the Channel tags. Just For internal XML Parser Purposes.
-    *
-    * @access private
-    * @var    array
-    */
-    var $_ctags = array( "x" );
-
-    /**
-    * Array containing the Channel content. Just For internal XML Parser Purposes.
-    *
-    * @access private
-    * @var    array
-    */
-    var $_item = array();   // Array
-
-    /**
-    * Array containing the Channel Parser Depth. Just For internal XML Parser Purposes.
-    *
-    * @access private
-    * @var    array
-    */
-    var $_depth = array();  // Array
-
-    /**
-    * Array containing the tags. Just For internal XML Parser Purposes.
-    *
-    * @access private
-    * @var    array
-    */
-    var $_tags = array( "x" );  // Array
-
-    /**
-    * Garbage collection: probability in percent
-    *
-    * @var      integer     0 => never
-    * @access   public
-    */
-    var $gc_probability = 1;
-
-    /**
-    * HTML Output
-    *
-    * @var      string
-    * @access   private
-    */
-    var $_output = "";
-
-    /**
-    * @var  string
-    */
-    var $_parse_mode = "";
-
-    // Output variable
-    var $out = "";
-
-    // Salt for hashing
-    var $salt = "";
-
-    /**
-    * Constructor of our Class
-    *
-    * This Method checks if the Cache Directory can be found. Otherwise it tries to creat the Cache Directory at the specified Path.
-    * Additionally the Refresh Time is set to a default Value of 1200s (20 min).
-       *
-    * @access    public
-       * @author    Stefan Saasen <s@fase4.com>
-       * @see           _refresh
-    */
-    function fase4_rdf()
-    {
-        // default Value, to be overwritten in set_refresh()
-        $this->_refresh = (time() - 1200);
-        $this->_clear_cItems();
-        $this->_clear_Items();
-    }
-
-    /**
-    * This Method starts the parsing of the specified RDF File. The File can be a local or a remote File.
-    *
-    * @access    public
-       * @author    Stefan Saasen <s@fase4.com>
-    * @param     string $rdf    RDF File (Location)
-    * @return    string Displays RDF Content ( using _display() )
-       * @see           _remote_file, cache()
-    */
-    function parse_RDF( $rdf )
-    {
-        unset($this->_array_item);
-        $this->_remote_file = $rdf;
-        $this->out .= "<!-- http://www.fase4.com/rdf/ -->";
-        $this->out .= "<table width=\"".$this->_table_width."\">";
-        $this->out .= $this->cache();
-        $this->out .= "</table>";
-        $this->_output = "";
-        $this->_item_count = 0;
-        return true;
-    }
-
-    /**
-    * This Method is called when all parsing is finished to use the garbage collection
-    *
-    * @access    public
-       * @author    Stefan Saasen <s@fase4.com>
-    * @param     string $rdf    RDF File (Location)
-    * @return    string Displays RDF Content ( using _display() )
-       * @see           _remote_file, cache()
-    */
-    function finish($return = false)
-    {
+       /**
+        * Word-wrapping mode for description, set it to 0 do disable this feature! Ommits _use_nl2br!
+        *
+        * @access private
+        * @var    integer
+        */
+       var $_word_wrap = 0;
+
+       /**
+        * Wether to recode \n -> <br /> or not in description
+        *
+        * @access private
+        * @var    boolean
+        */
+       var $_use_nl2br = true;
+
+       /**
+        * Sets the decoding mode of the read data (UTF8 scrambles some german umlauts here!)
+        *
+        * "htmlentities" - Use the function htmlentities()
+        * "utf8_decode"  - Use the function ut8_decode() when you have UTF8 encoded text
+        *
+        * @access private
+        * @var    string
+        */
+       var $_decoding_mode = "utf8_decode";
+
+       /**
+        * If $_link_target is set a target='xxx' attribute in each <a /> and <form /> html tag will be added
+        *
+        * Possible values are "_blank", "_content", "_parent", "_self", "_top"
+        *
+        * @access private
+        * @var    string
+        */
+       var $_link_target = "_blank";
+
+       /**
+        * vars for proxy settings - Prox Host
+        *
+        * @access private
+        * @var      string
+        */
+       var $_phost = "";
+
+       /**
+        * vars for proxy settings - Prox Port
+        *
+        * @access private
+        * @var      string
+        */
+       var $_pport = "";
+
+       /**
+        * vars for proxy settings - Prox Username
+        *
+        * @access private
+        * @var      string
+        */
+       var $_pname = "";
+
+       /**
+        * vars for proxy settings - Prox Password
+        *
+        * @access private
+        * @var      string
+        */
+       var $_ppasswd = "";
+
+       /**
+        * just a flag for checking if proxy-support should be enabled
+        * set default to false (will be enabled if set_proxy is called)
+        *
+        * @access   private
+        * @see      set_proxy()
+        * @var      bool
+        */
+       var $_use_proxy = false;
+
+       /**
+        * just a flag for checking if proxy-support with authentication
+        * should be enabled
+        * set default to false (will be enabled if set_proxy is called)
+        *
+        * @access   private
+        * @see      set_proxy()
+        * @var      boolean
+        */
+       var $_use_proxy_auth = false;
+
+       /**
+        * The time the Files will be cached (in seconds).
+        *
+        * @access private
+        * @var    int
+        */
+       var $_refresh = 60;   // int
+
+       /**
+        * The Name of the cached File.
+        *
+        * @access private
+        * @var    string
+        */
+       var $_cached_file = "";   // String
+
+       /**
+        * Indicates whether the cached or the remote file was used.
+        *
+        * @access private
+        * @var    boolean
+        */
+       var $_use_cached_file = true;
+
+       /**
+        * (fast|normal) depends on _use_dynamic_display(). _use_dynamic_display( TRUE ) -> 'normal', otherwise 'fast'
+        *
+        * @access private
+        * @var    string
+        */
+       var $_cache_type = "fast";
+
+       /**
+        * The Name of the Remote File.
+        *
+        * @access private
+        * @var    string
+        */
+       var $_remote_file = "";
+
+       /**
+        * Path to the Cache Directory.
+        *
+        * @access private
+        * @var    string
+        */
+       var $_cache_dir = "cache/";  // String
+
+       /**
+        * Indicates whether the Creating of the Cache Directory needs to be done or not.
+        *
+        * @access private
+        * @var    boolean
+        */
+       var $_cache_dir_ok = false;
+
+       /**
+        * Type of the file to be parsed (RSS or RDF).
+        *
+        * The Type depends on the root node
+        *
+        * @access private
+        * @var    string
+        */
+       var $_type = "rss"; // string (rss or rdf)
+
+       /**
+        * Array of Display Settings.
+        *
+        * Specific Parameters can be set to hidden. These are:
+        * image, channel and textinput. If set to "hidden" those elements won't be displayed.
+        *
+        * @access private
+        * @var    array
+        */
+       var $_display_opt = array(
+               'build' => "",
+               'image' => "",
+               'channel' => "",
+               'textinput' => "",
+               'cache_update' => "",
+               'sitelink' => "",
+               'refid' => "",
+               'reflink' => "",
+       );
+
+       /**
+        * Defines the width attribute in the table that holds the rdf/rss representation
+        *
+        * @access private
+        * @var    int
+        * @see    see_table_width()
+        */
+       var $_table_width = "100%";
+
+       /**
+        * Indicates whether or not to use dynamic Display Settings
+        *
+        * @access private
+        * @var    array
+        */
+       var $_use_dynamic_display = false;
+
+       /**
+        * <item> count
+        *
+        * @access private
+        * @var    int
+        */
+       var $_item_count = 0;
+
+       /**
+        * No of max <item>s
+        *
+        * @access private
+        * @var    boolean
+        */
+       var $_max_count = false;
+
+       /**
+        * Array containing the content of <channel />
+        *
+        * @access private
+        * @var    array
+        */
+       var $_array_channel = array();
+
+       /**
+        * Array containing the content of each <item />
+        *
+        * @access private
+        * @var    array
+        */
+       var $_array_item = array();
+
+       /**
+        * Array containing the content of <textinput />
+        *
+        * @access private
+        * @var    array
+        */
+       var $_array_textinput = array();
+
+       /**
+        * Array containing the content of <image />
+        *
+        * @access private
+        * @var    array
+        */
+       var $_array_image = array();
+
+       /**
+        * Array containing the Channel content. Just For internal XML Parser Purposes.
+        *
+        * @access private
+        * @var    array
+        */
+       var $_citem = array();
+
+       /**
+        * Array containing the Channel Parser Depth. Just For internal XML Parser Purposes.
+        *
+        * @access private
+        * @var    array
+        */
+       var $_cdepth = array();
+
+       /**
+        * Array containing the Channel tags. Just For internal XML Parser Purposes.
+        *
+        * @access private
+        * @var    array
+        */
+       var $_ctags = array( "x" );
+
+       /**
+        * Array containing the Channel content. Just For internal XML Parser Purposes.
+        *
+        * @access private
+        * @var    array
+        */
+       var $_item = array();   // Array
+
+       /**
+        * Array containing the Channel Parser Depth. Just For internal XML Parser Purposes.
+        *
+        * @access private
+        * @var    array
+        */
+       var $_depth = array();  // Array
+
+       /**
+        * Array containing the tags. Just For internal XML Parser Purposes.
+        *
+        * @access private
+        * @var    array
+        */
+       var $_tags = array( "x" );  // Array
+
+       /**
+        * Garbage collection: probability in percent
+        *
+        * @var      integer     0 => never
+        * @access   public
+        */
+       var $gc_probability = 1;
+
+       /**
+        * HTML Output
+        *
+        * @var      string
+        * @access   private
+        */
+       var $_output = "";
+
+       /**
+        * @var  string
+        */
+       var $_parse_mode = "";
+
+       // Output variable
+       var $out = "";
+
+       // Salt for hashing
+       var $salt = "";
+
+       /**
+        * Constructor of our Class
+        *
+        * This Method checks if the Cache Directory can be found. Otherwise it tries to creat the Cache Directory at the specified Path.
+        * Additionally the Refresh Time is set to a default Value of 1200s (20 min).
+        *
+        * @access    public
+        * @author    Stefan Saasen <s@fase4.com>
+        * @see          _refresh
+        */
+       function fase4_rdf()
+       {
+               // default Value, to be overwritten in set_refresh()
+               $this->_refresh = (time() - 1200);
+               $this->_clear_cItems();
+               $this->_clear_Items();
+       }
+
+       /**
+        * This Method starts the parsing of the specified RDF File. The File can be a local or a remote File.
+        *
+        * @access    public
+        * @author    Stefan Saasen <s@fase4.com>
+        * @param     string $rdf    RDF File (Location)
+        * @return    string Displays RDF Content ( using _display() )
+        * @see          _remote_file, cache()
+        */
+       function parse_RDF( $rdf )
+       {
+               unset($this->_array_item);
+               $this->_remote_file = $rdf;
+               $this->out .= "<!-- http://www.fase4.com/rdf/ -->";
+               $this->out .= "<table width=\"".$this->_table_width."\">";
+               $this->out .= $this->cache();
+               $this->out .= "</table>";
+               $this->_output = "";
+               $this->_item_count = 0;
+               return true;
+       }
+
+       /**
+        * This Method is called when all parsing is finished to use the garbage collection
+        *
+        * @access    public
+        * @author    Stefan Saasen <s@fase4.com>
+        * @param     string $rdf    RDF File (Location)
+        * @return    string Displays RDF Content ( using _display() )
+        * @see          _remote_file, cache()
+        */
+       function finish($return = false)
+       {
                if (!$return) {
                        echo $this->out;
                } else {
                        return $this->out;
                }
-        flush();
-        $this->_garbage_collection();
-    }
-
-    /**
-    * With this method you can decide whether to use the normal cache and dynamic display Options or to use a static cache.
-    *
-    * In the first case the rdf/rss File will be stored locally, in the second case the html output of the specified source will be stored.
-    * In this case you can not modify the display settings.
-    * processing time: ( 1.4792) --> remote file
-    * processing time: ( 0.0313) --> using 'normal cache' with display Modification turned on.
-    * processing time: ( 0.0019) --> using 'fast cache'
-    *
-    * @access    public
-       * @author    Stefan Saasen <s@fase4.com>
-    * @param     string $rdf    RDF File (Location)
-    * @return    string Displays RDF Content ( using _display() )
-       * @see           _remote_file, cache()
-    */
-    function use_dynamic_display( $bool )
-    {
-        $this->_use_dynamic_display = $bool;
-        return true;
-    }
-
-    /**
-    * This Method avtually parses the XML data.
-    *
-    * @access    private
-       * @author    Stefan Saasen <s@fase4.com>
-    * @param     string $data    RDF File XML Data
-       * @see           _clear_Items()
-    */
-    function _parse_xRDF( $data )
-    {
-        $this->_clear_Items();
-        $xml_parser = xml_parser_create();
-        xml_set_object($xml_parser,$this);
-               xml_parser_set_option($xml_parser,XML_OPTION_CASE_FOLDING,0);
-        xml_set_element_handler($xml_parser, "_startElement", "_endElement");
-        xml_set_character_data_handler($xml_parser, "_parseData");
-        if (!xml_parse($xml_parser, trim($data))) {
-                $this->_throw_exception(sprintf("XML error: %s at line %d",
-                xml_error_string(xml_get_error_code($xml_parser)),
-                xml_get_current_line_number($xml_parser))."<br /><br />Exception in function parse_RDF().");
-            }
-        xml_parser_free($xml_parser);
-    }
-
-
-    /**
-    * This Methods allows you to set the Refresh Time
-    *
-    * @access    public
-       * @author    Stefan Saasen <s@fase4.com>
-    * @param     int $seconds time files will be cached (in seconds).
-       * @return        boolean
-       * @see           _refresh
-    */
-    function set_refresh( $seconds )
-    {
-        $this->_refresh = (time() - $seconds);
-        return true;
-    }
-
-    function set_salt( $saltPara )
-    {
-        $this->salt = $saltPara;
-        return true;
-    }
-
-    /**
-    * This Methods allows you to set the No. of <item>s to display
-    *
-    * @access    public
-    * @param     int $int No of max <item>s
-       * @author    Stefan Saasen <s@fase4.com>
-       * @return        boolean
-       * @see           _max_count, _endElement()
-    */
-    function set_max_item( $int )
-    {
-        $this->_max_count = $int;
-        return true;
-    }
-
-    /**
-    * This Methods allows you to set the Cache Directory
-    *
-    * @access    public
-       * @author    Stefan Saasen <s@fase4.com>
-    * @param     string $dir Path to Directory.
-       * @return        boolean
-       * @see           _cache_dir
-    */
-    function set_CacheDir( $dir )
-    {
-        if(substr($dir, -1) != "/") {
-            $dir = $dir."/";
-        }
-        $this->_cache_dir = $dir;
-    }
-
-    /**
-    * This Method displays Error Messages and terminates the Execution of the Script
-    *
-    * @access    private
-    * @param     string $msg Message to display on failure
-       * @author    Stefan Saasen <s@fase4.com>
-    */
-    function _throw_exception( $msg )
-    {
-        $this->out .= "<div style=\"font-family: verdana, helvetica, arial, sans-serif;font-size:11px; color: #6699cc;margin-top:10px;margin-bottom:10px;\" align=\"center\">fase4 RDF Error: ".$msg."</div>";
-        return true;
-    }
-
-    /**
-    * This Method clears the Array containig the Items.
-    *
-    * @access    private
-       * @author    Stefan Saasen <s@fase4.com>
-    * @see       _item
-    */
-    function _clear_Items( ) {
-        $this->_item = array(
+               flush();
+               $this->_garbage_collection();
+       }
+
+       /**
+        * With this method you can decide whether to use the normal cache and dynamic display Options or to use a static cache.
+        *
+        * In the first case the rdf/rss File will be stored locally, in the second case the html output of the specified source will be stored.
+        * In this case you can not modify the display settings.
+        * processing time: ( 1.4792) --> remote file
+        * processing time: ( 0.0313) --> using 'normal cache' with display Modification turned on.
+        * processing time: ( 0.0019) --> using 'fast cache'
+        *
+        * @access    public
+        * @author    Stefan Saasen <s@fase4.com>
+        * @param     string $rdf    RDF File (Location)
+        * @return    string Displays RDF Content ( using _display() )
+        * @see          _remote_file, cache()
+        */
+       function use_dynamic_display( $bool )
+       {
+               $this->_use_dynamic_display = $bool;
+               return true;
+       }
+
+       /**
+        * This Method avtually parses the XML data.
+        *
+        * @access    private
+        * @author    Stefan Saasen <s@fase4.com>
+        * @param     string $data    RDF File XML Data
+        * @see       _clear_Items()
+        */
+       function _parse_xRDF( $data )
+       {
+               $this->_clear_Items();
+               $xml_parser = xml_parser_create();
+               xml_set_object($xml_parser,$this);
+               xml_parser_set_option($xml_parser,XML_OPTION_CASE_FOLDING,0);
+               xml_set_element_handler($xml_parser, "_startElement", "_endElement");
+               xml_set_character_data_handler($xml_parser, "_parseData");
+               if (!xml_parse($xml_parser, trim($data))) {
+                       $this->_throw_exception(sprintf("XML error: %s at line %d",
+                       xml_error_string(xml_get_error_code($xml_parser)),
+                       xml_get_current_line_number($xml_parser))."<br /><br />Exception in function parse_RDF().");
+               }
+               xml_parser_free($xml_parser);
+       }
+
+
+       /**
+        * This Methods allows you to set the Refresh Time
+        *
+        * @access    public
+        * @author    Stefan Saasen <s@fase4.com>
+        * @param     int $seconds time files will be cached (in seconds).
+        * @return       boolean
+        * @see          _refresh
+        */
+       function set_refresh( $seconds )
+       {
+               $this->_refresh = (time() - $seconds);
+               return true;
+       }
+
+       function set_salt( $saltPara )
+       {
+               $this->salt = $saltPara;
+               return true;
+       }
+
+       /**
+        * This Methods allows you to set the No. of <item>s to display
+        *
+        * @access    public
+        * @param     int $int No of max <item>s
+        * @author    Stefan Saasen <s@fase4.com>
+        * @return       boolean
+        * @see          _max_count, _endElement()
+        */
+       function set_max_item( $int )
+       {
+               $this->_max_count = $int;
+               return true;
+       }
+
+       /**
+        * This Methods allows you to set the Cache Directory
+        *
+        * @access    public
+        * @author    Stefan Saasen <s@fase4.com>
+        * @param     string $dir Path to Directory.
+        * @return       boolean
+        * @see          _cache_dir
+        */
+       function set_CacheDir( $dir )
+       {
+               if(substr($dir, -1) != "/") {
+                       $dir = $dir."/";
+               }
+               $this->_cache_dir = $dir;
+       }
+
+       /**
+        * This Method displays Error Messages and terminates the Execution of the Script
+        *
+        * @access    private
+        * @param     string $msg Message to display on failure
+        * @author    Stefan Saasen <s@fase4.com>
+        */
+       function _throw_exception( $msg )
+       {
+               $this->out .= "<div style=\"font-family: verdana, helvetica, arial, sans-serif;font-size:11px; color: #6699cc;margin-top:10px;margin-bottom:10px;\" align=\"center\">fase4 RDF Error: ".$msg."</div>";
+               return true;
+       }
+
+       /**
+        * This Method clears the Array containig the Items.
+        *
+        * @access    private
+        * @author    Stefan Saasen <s@fase4.com>
+        * @see       _item
+        */
+       function _clear_Items( ) {
+               $this->_item = array(
             'title'=>"",
             'link'=>"",
             'description'=>"",
@@ -550,19 +551,19 @@ class fase4_rdf {
             'language'=>"",
             'pubDate'=>"",
             'lastBuildDate'=>"",
-            'width'=>'',
-            'height'=>''
-        );
-    }
-    /**
-    * This Method clears the Array containig the Channel Items.
-    *
-    * @access    private
-       * @author    Stefan Saasen <s@fase4.com>
-    * @see       _item
-    */
-    function _clear_cItems( ) {
-        $this->_citem = array(
+            'width'=>"",
+            'height'=>""
+            );
+       }
+       /**
+        * This Method clears the Array containig the Channel Items.
+        *
+        * @access    private
+        * @author    Stefan Saasen <s@fase4.com>
+        * @see       _item
+        */
+       function _clear_cItems( ) {
+               $this->_citem = array(
             'title'=>"",
             'link'=>"",
             'description'=>"",
@@ -585,777 +586,798 @@ class fase4_rdf {
             'sitelink'=>"",
             'refid'=>"",
             'reflink'=>"",
-        );
-    }
-
-    /**
-    * XML Parser Start Element Handler
-    *
-    * @access    private
-       * @author    Stefan Saasen <s@fase4.com>
-    * @param     mixed  $parser a reference to the XML parser calling the handler.
-    * @param     string $name contains the name of the element for which this handler is called.
-    * @param     string $attrs contains an associative array with the element's attributes (if any).
-       * @see           _get_ChannelData(), _clear_Items(), _type, _parse_mode, _depth, _tags, _cdepth, _ctags
-    */
-    function _startElement($parser, $name, $attrs) {
-        // We have to determine, which type of xml data we have to parse
-        if($name == "rss") {
-            $this->_type = "rss";
-        } elseif($name == "rdf:RDF" OR $name == "rdf") {
-            $this->_type = "rdf";
-        }
-
-
-        if ( $name == "channel" AND $this->_type != "rdf" ) {
-            $this->_parse_mode = "channel";
-        } elseif ( ($name=="item")
-                    ||($name=="image")
-                    ||($name=="textinput")
-                    ||(($name=="channel") && ($this->_type != "rss")) ) {
-            if($this->_parse_mode=="channel") {
-                $this->_get_ChannelData( $parser );
-            }
-            $this->_parse_mode = "all";
-        }
-
-        if( !isset( $this->_depth[$parser] ) ) {
-            $this->_depth[$parser] = 0;
-        }
-        $this->_depth[$parser]++;
-        array_push($this->_tags, $name);
-
-        if( !isset( $this->_cdepth[$parser] ) ) {
-            $this->_cdepth[$parser] = 0;
-        }
-        $this->_cdepth[$parser]++;
-        array_push($this->_ctags, $name);
-    }   // END _startElement()
-
-    /**
-    * Retrives the Channel Data in <rss> File
-    *
-    * @access    private
-       * @author    Stefan Saasen <s@fase4.com>
-    * @param     mixed  $parser a reference to the XML parser calling the handler.
-       * @see           _output, _display_opt, _citem
-    */
-    function _get_ChannelData( $parser )
-    {
-                $this->_citem["link"] = trim($this->_citem["link"]);
-                        if (($this->_display_opt["sitelink"] == $this->_citem["link"]) && (!empty($this->_display_opt["reflink"])) && (!empty($this->_display_opt["refid"])))
-                {
-                    $this->_citem["link"] .= $this->_display_opt["reflink"].$this->_display_opt["refid"];
-                }
-
-                if( empty($this->_display_opt["channel"]) OR
-                    $this->_display_opt["channel"] != "hidden") {
-                $this->_output .= "<tr><td>\n";
-                $this->_output .= "<table border=\"0\" width=\"100%\" class=\"fase4_rdf_meta\" cellspacing=\"5\" cellpadding=\"2\">\n";
-                $this->_output .= "<tr><td class=\"fase4_rdf_main_title\"><div class=\"fase4_rdf_main_title\">".htmlspecialchars($this->_citem["title"])."</div></td></tr>\n";
-                $this->_output .= "<tr><td class=\"fase4_rdf\">".strip_tags($this->_citem["description"], "<a>, <img>")."</td></tr>\n";
-                $this->_output .= "<tr><td>&nbsp;</td></tr>\n";
-                $this->_output .= "<tr><td class=\"fase4_rdf\">\n";
-                if(isset($this->_display_opt["build"]) && $this->_display_opt["build"] != "hidden") {
-                    if($this->_citem["lastBuildDate"]){$this->_output .= "build: ". $this->_citem["lastBuildDate"]."<br />";}
-                }
-                if(isset($this->_display_opt["cache_update"]) && $this->_display_opt["cache_update"] != "hidden" && ( $_update = $this->get_cache_update_time()) ) {
-                $this->_output .= "cache update: ".$_update."<br />\n";
-                }
-                $this->_output .= "<a href=\"".$this->_citem["link"]."\" ";
-                if(isset($this->_link_target)) { $this->_output .= "target=\"".$this->_link_target."\" "; }
-                $this->_output .= ">".$this->_cut_string($this->_citem["link"])."</a>";
-                $this->_output .= "</td></tr>\n";
-                $this->_output .= "<tr><td><hr noshade width=\"100%\" size=\"1\"></td></tr>\n";
-                $this->_output .= "</table></td></tr>";
-                }
-                    $this->_array_channel = array(  "title"=>$this->_citem["title"],
+               );
+       }
+
+       /**
+        * XML Parser Start Element Handler
+        *
+        * @access    private
+        * @author    Stefan Saasen <s@fase4.com>
+        * @param     mixed  $parser a reference to the XML parser calling the handler.
+        * @param     string $name contains the name of the element for which this handler is called.
+        * @param     string $attrs contains an associative array with the element's attributes (if any).
+        * @see          _get_ChannelData(), _clear_Items(), _type, _parse_mode, _depth, _tags, _cdepth, _ctags
+        */
+       function _startElement($parser, $name, $attrs) {
+               // We have to determine, which type of xml data we have to parse
+               if($name == "rss") {
+                       $this->_type = "rss";
+               } elseif($name == "rdf:RDF" OR $name == "rdf") {
+                       $this->_type = "rdf";
+               }
+
+
+               if ( $name == "channel" AND $this->_type != "rdf" ) {
+                       $this->_parse_mode = "channel";
+               } elseif ( ($name=="item")
+               ||($name=="image")
+               ||($name=="textinput")
+               ||(($name=="channel") && ($this->_type != "rss")) ) {
+                       if($this->_parse_mode=="channel") {
+                               $this->_get_ChannelData( $parser );
+                       }
+                       $this->_parse_mode = "all";
+               }
+
+               if( !isset( $this->_depth[$this->get_parser_id($parser)] ) ) {
+                       $this->_depth[$this->get_parser_id($parser)] = 0;
+               }
+               $this->_depth[$this->get_parser_id($parser)]++;
+               array_push($this->_tags, $name);
+
+               if( !isset( $this->_cdepth[$this->get_parser_id($parser)] ) ) {
+                       $this->_cdepth[$this->get_parser_id($parser)] = 0;
+               }
+               $this->_cdepth[$this->get_parser_id($parser)]++;
+               array_push($this->_ctags, $name);
+       }   // END _startElement()
+
+       /**
+        * Retrives the Channel Data in <rss> File
+        *
+        * @access    private
+        * @author    Stefan Saasen <s@fase4.com>
+        * @param     mixed  $parser a reference to the XML parser calling the handler.
+        * @see          _output, _display_opt, _citem
+        */
+       function _get_ChannelData( $parser )
+       {
+               $this->_citem["link"] = trim($this->_citem["link"]);
+               if (($this->_display_opt["sitelink"] == $this->_citem["link"]) && (!empty($this->_display_opt["reflink"])) && (!empty($this->_display_opt["refid"])))
+               {
+                       $this->_citem["link"] .= $this->_display_opt["reflink"].$this->_display_opt["refid"];
+               }
+
+               if( empty($this->_display_opt["channel"]) OR
+               $this->_display_opt["channel"] != "hidden") {
+                       $this->_output .= "<tr><td>\n";
+                       $this->_output .= "<table border=\"0\" width=\"100%\" class=\"fase4_rdf_meta\" cellspacing=\"5\" cellpadding=\"2\">\n";
+                       $this->_output .= "<tr><td class=\"fase4_rdf_main_title\"><div class=\"fase4_rdf_main_title\">".htmlspecialchars($this->_citem["title"])."</div></td></tr>\n";
+                       $this->_output .= "<tr><td class=\"fase4_rdf\">".strip_tags($this->_citem["description"], "<a>, <img>")."</td></tr>\n";
+                       $this->_output .= "<tr><td>&nbsp;</td></tr>\n";
+                       $this->_output .= "<tr><td class=\"fase4_rdf\">\n";
+                       if(isset($this->_display_opt["build"]) && $this->_display_opt["build"] != "hidden") {
+                               if($this->_citem["lastBuildDate"]){$this->_output .= "build: ". $this->_citem["lastBuildDate"]."<br />";}
+                       }
+                       if(isset($this->_display_opt["cache_update"]) && $this->_display_opt["cache_update"] != "hidden" && ( $_update = $this->get_cache_update_time()) ) {
+                               $this->_output .= "cache update: ".$_update."<br />\n";
+                       }
+                       $this->_output .= "<a href=\"".$this->_citem["link"]."\" ";
+                       if(isset($this->_link_target)) { $this->_output .= "target=\"".$this->_link_target."\" "; }
+                       $this->_output .= ">".$this->_cut_string($this->_citem["link"])."</a>";
+                       $this->_output .= "</td></tr>\n";
+                       $this->_output .= "<tr><td><hr noshade width=\"100%\" size=\"1\"></td></tr>\n";
+                       $this->_output .= "</table></td></tr>";
+               }
+               $this->_array_channel = array(  "title"=>$this->_citem["title"],
                                                     "link"=>$this->_citem["link"],
                                                     "description"=>$this->_citem["description"],
                                                     "lastBuildDate"=>$this->_citem["lastBuildDate"]);
-    }
-
-    /**
-    * XML Parser End Element Handler
-    *
-    * @access    private
-       * @author    Stefan Saasen <s@fase4.com>
-    * @param     mixed  $parser a reference to the XML parser calling the handler.
-    * @param     string $name contains the name of the element for which this handler is called.
-       * @see           _clear_Items(), _type, _parse_mode, _depth, _tags, _cdepth, _ctags, _item, _output, _display_opt
-    */
-    function _endElement($parser, $name) {
-        array_pop($this->_tags);
-        $this->_depth[$parser]--;
-        array_pop($this->_ctags);
-        $this->_cdepth[$parser]--;
-        $this->_item["link"] = trim($this->_item["link"]);
-          if ((!empty($this->_display_opt["refid"])) && (!empty($this->_item["link"])))
-          {
-            if (!ereg("refid=", $this->_item["link"])) $this->_item["link"] .= "?refid=" . $this->_display_opt["refid"];
-          }
-        switch ($name) {
-            case "item":
-                if(empty($this->_max_count) OR $this->_item_count < $this->_max_count) {
-                    if($this->_item["title"] != $this->_item["description"]
-                                            AND $this->_item["description"]) {
-
-                        // word-wrapping added by Roland Haeder <webmaster@mxchange.org>
-                          if (($this->_word_wrap > 0) && (strlen($this->_item["description"]) > $this->_word_wrap))
-                        {
-                            // Switch off _use_nl2br
-                            $this->_use_nl2br = false;
-                            // First remove all \n
-                            $this->_item["description"] = str_replace('\n', ' ', $this->_item["description"]);
-                            // Wrap with <br />\n
-                            $this->_item["description"] = wordwrap($this->_item["description"], $this->_word_wrap, "*<br>\n");
-                        }
-                         elseif (($this->_word_wrap == 0) && (!$this->_use_nl2br))
-                        {
-                            // Strip tags out instead when word-wrap is disabled
-                            $this->_item["description"] = strip_tags($this->_item["description"], "<a>, <img>");
-                        }
-
-                        // nl2br added by Roland Haeder <webmaster@mxchange.org>
-                        if ($this->_use_nl2br) $this->_item["description"] = nl2br($this->_item["description"]);
-
-                        $this->_output .= "<tr><td class=\"fase4_rdf_title\"><div class=\"fase4_rdf_title\"><a class=\"fase4_rdf_title\" href=\"".$this->_item["link"]."\" ";
-                        if(isset($this->_link_target)) { $this->_output .= "target=\"".$this->_link_target."\" "; }
-                        $this->_output .= ">".strip_tags($this->_item["title"], "<a>, <img>")."</a> (".$this->_item["pubDate"].")</div></td></tr>\n";
-                                       $this->_output .= "<tr><td class=\"fase4_rdf\">".$this->_item["description"]."</td></tr>\n";
-                        // we just display the <hr> if there is a description
-                        $this->_output .= "<tr><td><hr noshade=\"noshade\" size=\"1\" /></td></tr>\n";
-                    } else {
-                        $this->_output .= "<tr><td class=\"fase4_rdf\">\n";
-                        $this->_output .= "<a href=\"".$this->_item["link"]."\" ";
-                        if(isset($this->_link_target)) { $this->_output .= "target=\"".$this->_link_target."\" "; }
-                        $this->_output .= ">".$this->_item["title"]."</a></td></tr>\n";
-                    }
-                        $this->_array_item[] = array(   "title"=>$this->_item["title"],
+       }
+
+       /**
+        * XML Parser End Element Handler
+        *
+        * @access    private
+        * @author    Stefan Saasen <s@fase4.com>
+        * @param     mixed  $parser a reference to the XML parser calling the handler.
+        * @param     string $name contains the name of the element for which this handler is called.
+        * @see          _clear_Items(), _type, _parse_mode, _depth, _tags, _cdepth, _ctags, _item, _output, _display_opt
+        */
+       function _endElement($parser, $name) {
+               array_pop($this->_tags);
+               $this->_depth[$this->get_parser_id($parser)]--;
+               array_pop($this->_ctags);
+               $this->_cdepth[$this->get_parser_id($parser)]--;
+               $this->_item["link"] = trim($this->_item["link"]);
+               if ((!empty($this->_display_opt["refid"])) && (!empty($this->_item["link"])))
+               {
+                       if (!ereg("refid=", $this->_item["link"])) $this->_item["link"] .= "?refid=" . $this->_display_opt["refid"];
+               }
+               switch ($name) {
+                       case "item":
+                               if(empty($this->_max_count) OR $this->_item_count < $this->_max_count) {
+                                       if($this->_item["title"] != $this->_item["description"]
+                                       AND $this->_item["description"]) {
+
+                                               // word-wrapping added by Roland Haeder <webmaster@mxchange.org>
+                                               if (($this->_word_wrap > 0) && (strlen($this->_item["description"]) > $this->_word_wrap))
+                                               {
+                                                       // Switch off _use_nl2br
+                                                       $this->_use_nl2br = false;
+                                                       // First remove all \n
+                                                       $this->_item["description"] = str_replace("\n", ' ', $this->_item["description"]);
+                                                       // Wrap with <br />\n
+                                                       $this->_item["description"] = wordwrap($this->_item["description"], $this->_word_wrap, "*<br>\n");
+                                               }
+                                               elseif (($this->_word_wrap == 0) && (!$this->_use_nl2br))
+                                               {
+                                                       // Strip tags out instead when word-wrap is disabled
+                                                       $this->_item["description"] = strip_tags($this->_item["description"], "<a>, <img>");
+                                               }
+
+                                               // nl2br added by Roland Haeder <webmaster@mxchange.org>
+                                               if ($this->_use_nl2br) $this->_item["description"] = nl2br($this->_item["description"]);
+
+                                               $this->_output .= "<tr><td class=\"fase4_rdf_title\"><div class=\"fase4_rdf_title\"><a class=\"fase4_rdf_title\" href=\"".$this->_item["link"]."\" ";
+                                               if(isset($this->_link_target)) { $this->_output .= "target=\"".$this->_link_target."\" "; }
+                                               $this->_output .= ">".strip_tags($this->_item["title"], "<a>, <img>")."</a> (".$this->_item["pubDate"].")</div></td></tr>\n";
+                                               $this->_output .= "<tr><td class=\"fase4_rdf\">".$this->_item["description"]."</td></tr>\n";
+                                               // we just display the <hr> if there is a description
+                                               $this->_output .= "<tr><td><hr noshade=\"noshade\" size=\"1\" /></td></tr>\n";
+                                       } else {
+                                               $this->_output .= "<tr><td class=\"fase4_rdf\">\n";
+                                               $this->_output .= "<a href=\"".$this->_item["link"]."\" ";
+                                               if(isset($this->_link_target)) { $this->_output .= "target=\"".$this->_link_target."\" "; }
+                                               $this->_output .= ">".$this->_item["title"]."</a></td></tr>\n";
+                                       }
+                                       $this->_array_item[] = array(   "title"=>$this->_item["title"],
                                                         "link"=>$this->_item["link"],
                                                         "description"=>$this->_item["description"]);
-                        ++$this->_item_count;
-                }
-                    $this->_clear_Items();
-            break;
-            case "image":
-                if(isset($this->_display_opt["image"]) && ($this->_display_opt["image"] != "hidden") && $this->_item["url"]) {
-                    $this->_output .= "<tr><td class=\"fase4_rdf\">\n";
-                    $this->_output .= "<a href=\"".$this->_item["link"]."\" ";
-                    if(isset($this->_link_target)) { $this->_output .= "target=\"".$this->_link_target."\" "; }
-                    $this->_output .= "><img src=\"".$this->_item["url"]."\"";
-                if(isset($this->_item["width"]) && isset($this->_item["height"])) {
-                    $this->_output .= " width=\"".$this->_item["width"]."\" height=\"".$this->_item["height"]."\"";
-                }
-                $this->_output .= " alt=\"".$this->_item["title"]."\" border=\"0\" /></a></td></tr>\n";
-
-                    $this->_array_image[] = array(  "url"=>$this->_item["url"],
+                                       ++$this->_item_count;
+                               }
+                               $this->_clear_Items();
+                               break;
+                       case "image":
+                               if(isset($this->_display_opt["image"]) && ($this->_display_opt["image"] != "hidden") && $this->_item["url"]) {
+                                       $this->_output .= "<tr><td class=\"fase4_rdf\">\n";
+                                       $this->_output .= "<a href=\"".$this->_item["link"]."\" ";
+                                       if(isset($this->_link_target)) { $this->_output .= "target=\"".$this->_link_target."\" "; }
+                                       $this->_output .= "><img src=\"".$this->_item["url"]."\"";
+                                       if(isset($this->_item["width"]) && isset($this->_item["height"])) {
+                                               $this->_output .= " width=\"".$this->_item["width"]."\" height=\"".$this->_item["height"]."\"";
+                                       }
+                                       $this->_output .= " alt=\"".$this->_item["title"]."\" border=\"0\" /></a></td></tr>\n";
+
+                                       $this->_array_image[] = array(  "url"=>$this->_item["url"],
                                                     "link"=>$this->_item["link"],
                                                     "width"=>$this->_item["width"],
                                                     "height"=>$this->_item["height"]);
-                    $this->_clear_Items();
-                } elseif( isset($this->_display_opt["image"] ) && ($this->_display_opt["image"] == "hidden") ) {
-                    $this->_clear_Items();
-                }
-
-            break;
-            case "channel":
-                if(isset($this->_display_opt["channel"]) AND $this->_display_opt["channel"] != "hidden" AND $this->_item["title"] != "") {
-                    $this->_output .= "<tr><td>\n";
-                    $this->_output .= '<table border="0" width="100%" class="fase4_rdf_meta" cellspacing="5" cellpadding="2">'."\n";
-                    $this->_output .= "<tr><td class=\"fase4_rdf\"><div class=\"fase4_rdf_title\">".htmlspecialchars($this->_item["title"])."</div></td></tr>\n";
-                    $this->_output .= "<tr><td class=\"fase4_rdf\">".strip_tags($this->_item["description"], "<a>, <img>")."</td></tr>\n";
-                    $this->_output .= "<tr><td>&nbsp;</td></tr>\n";
-                    $this->_output .= "<tr><td class=\"fase4_rdf\">\n";
-                if($this->_display_opt["build"] != "hidden") {
-                    if($this->_item["lastBuildDate"]){$this->_output .= "build: ". $this->_item["lastBuildDate"]."<br />";}
-                }
-                if($this->_display_opt["cache_update"] != "hidden" && ( $_update = $this->get_cache_update_time()) ) {
-                    $this->_output .= "cache update: ".$_update."<br />\n";
-                }
-                $this->_output .= "<a href=\"".$this->_item["link"]."\" ";
-                if(isset($this->_link_target)) { $this->_output .= "target=\"".$this->_link_target."\" "; }
-                $this->_output .= ">".$this->_cut_string($this->_item["link"])."</a>\n";
-                $this->_output .= "</td></tr>\n";
-                $this->_output .= "</table></td></tr>\n";
-                }
-                    $this->_array_channel = array(  "title"=>$this->_item["title"],
+                                       $this->_clear_Items();
+                               } elseif( isset($this->_display_opt["image"] ) && ($this->_display_opt["image"] == "hidden") ) {
+                                       $this->_clear_Items();
+                               }
+
+                               break;
+                       case "channel":
+                               if(isset($this->_display_opt["channel"]) AND $this->_display_opt["channel"] != "hidden" AND $this->_item["title"] != '') {
+                                       $this->_output .= "<tr><td>\n";
+                                       $this->_output .= '<table border="0" width="100%" class="fase4_rdf_meta" cellspacing="5" cellpadding="2">'."\n";
+                                       $this->_output .= "<tr><td class=\"fase4_rdf\"><div class=\"fase4_rdf_title\">".htmlspecialchars($this->_item["title"])."</div></td></tr>\n";
+                                       $this->_output .= "<tr><td class=\"fase4_rdf\">".strip_tags($this->_item["description"], "<a>, <img>")."</td></tr>\n";
+                                       $this->_output .= "<tr><td>&nbsp;</td></tr>\n";
+                                       $this->_output .= "<tr><td class=\"fase4_rdf\">\n";
+                                       if($this->_display_opt["build"] != "hidden") {
+                                               if($this->_item["lastBuildDate"]){$this->_output .= "build: ". $this->_item["lastBuildDate"]."<br />";}
+                                       }
+                                       if($this->_display_opt["cache_update"] != "hidden" && ( $_update = $this->get_cache_update_time()) ) {
+                                               $this->_output .= "cache update: ".$_update."<br />\n";
+                                       }
+                                       $this->_output .= "<a href=\"".$this->_item["link"]."\" ";
+                                       if(isset($this->_link_target)) { $this->_output .= "target=\"".$this->_link_target."\" "; }
+                                       $this->_output .= ">".$this->_cut_string($this->_item["link"])."</a>\n";
+                                       $this->_output .= "</td></tr>\n";
+                                       $this->_output .= "</table></td></tr>\n";
+                               }
+                               $this->_array_channel = array(  "title"=>$this->_item["title"],
                                                     "link"=>$this->_item["link"],
                                                     "description"=>$this->_item["description"],
                                                     "lastBuildDate"=>$this->_item["lastBuildDate"]);
-                    $this->_clear_Items();
-                    $this->_clear_cItems();
-            break;
+                               $this->_clear_Items();
+                               $this->_clear_cItems();
+                               break;
                        case "textinput":
-                if(isset($this->_display_opt["textinput"]) && ($this->_display_opt["textinput"] != "hidden") && $this->_item["name"] && $this->_item["link"]) {
-                    $this->_output .= "<tr><td class=\"fase4_rdf\">\n";
-                               $this->_output .= "<form action=\"".$this->_item["link"]."\" ";
-                    if(isset($this->_link_target)) { $this->_output .= "target=\"".$this->_link_target."\" "; }
-                    $this->_output .= "method=\"get\">\n";
-                    $this->_output .= "<div class=\"fase4_rdf_title\">".$this->_item["title"]."</div>";
-                    $this->_output .= strip_tags($this->_item["description"], "<a>, <img>")."<br><br>\n";
-                    $this->_output .= "<input class=\"fase4_rdf_input\" type=\"text\" name=\"".$this->_item["name"]."\">&nbsp;\n";
-                    $this->_output .= "<input class=\"fase4_rdf_input\" type=\"submit\" value=\"go\">";
-                    $this->_output .= "</form>\n";
-                    $this->_output .= "</td></tr>\n";
-                    $this->_array_textinput = array(    "title"=>$this->_item["title"],
+                               if(isset($this->_display_opt["textinput"]) && ($this->_display_opt["textinput"] != "hidden") && $this->_item["name"] && $this->_item["link"]) {
+                                       $this->_output .= "<tr><td class=\"fase4_rdf\">\n";
+                                       $this->_output .= "<form action=\"".$this->_item["link"]."\" ";
+                                       if(isset($this->_link_target)) { $this->_output .= "target=\"".$this->_link_target."\" "; }
+                                       $this->_output .= "method=\"get\">\n";
+                                       $this->_output .= "<div class=\"fase4_rdf_title\">".$this->_item["title"]."</div>";
+                                       $this->_output .= strip_tags($this->_item["description"], "<a>, <img>")."<br><br>\n";
+                                       $this->_output .= "<input class=\"fase4_rdf_input\" type=\"text\" name=\"".$this->_item["name"]."\">&nbsp;\n";
+                                       $this->_output .= "<input class=\"fase4_rdf_input\" type=\"submit\" value=\"go\">";
+                                       $this->_output .= "</form>\n";
+                                       $this->_output .= "</td></tr>\n";
+                                       $this->_array_textinput = array(    "title"=>$this->_item["title"],
                                                         "name"=>$this->_item["name"],
                                                         "link"=>$this->_item["link"],
                                                         "description"=>$this->_item["description"]);
-                    $this->_clear_Items();
-                } elseif( isset($this->_display_opt["textinput"]) && ($this->_display_opt["textinput"] == "hidden") ) {
-                    $this->_clear_Items();
-                }
-
-                       break;
-        }
-    }
-
-    /**
-    * This Method returns the data from the <channel /> paragraph.
-    *
-    * @access    public
-       * @author    Stefan Saasen <s@fase4.com>
-    * @return    array
-       * @see           _array_channel
-    */
-    function get_array_channel( )
-    {
-        return $this->_array_channel;
-    }
-
-    /**
-    * This Method returns the data from each <item /> paragraph.
-    *
-    * @access    public
-       * @author    Stefan Saasen <s@fase4.com>
-    * @return    array
-       * @see           _array_item
-    */
-    function get_array_item( )
-    {
-        return $this->_array_item;
-    }
-
-    /**
-    * This Method returns the data from <textinput />.
-    *
-    * @access    public
-       * @author    Stefan Saasen <s@fase4.com>
-    * @return    array
-       * @see           _array_textinput
-    */
-    function get_array_textinput( )
-    {
-        return $this->_array_textinput;
-    }
-
-    /**
-    * This Method returns the data from <image />.
-    *
-    * @access    public
-       * @author    Stefan Saasen <s@fase4.com>
-    * @return    array
-       * @see           _array_image
-    */
-    function get_array_image( )
-    {
-        return $this->_array_image;
-    }
-
-    /**
-    * XML Parser Data Handler
-    *
-    * @access    private
-       * @author    Stefan Saasen <s@fase4.com>
-    * @param     mixed  $parser a reference to the XML parser calling the handler.
-    * @param     string $text contains the character data as a string.
-       * @see           _parse_mode, _item, _tags, _depth, _citem, _ctags, _cdepth
-    */
-    function _parseData($parser, $text)
-    {
-        // Deocing mode added by Roland Haeder <webmaster@mxchange.org>
-        switch ($this->_decoding_mode)
-        {
-        case "utf8_decode":
-            $text = utf8_decode($text);
-            break;
-
-        case "htmlentities":
-            $text = htmlentities($text);
-            break;
-        }
-
-        $clean = preg_replace("/\s/", "", $text);
-        if ($clean) {
-            $text = preg_replace("/^\s+/", "", $text)."\n";
-                if($this->_parse_mode == "all") {
-                        if ( isset($this->_item[$this->_tags[$this->_depth[$parser]]]) &&
-                            $this->_item[$this->_tags[$this->_depth[$parser]]] ) {
-                           $this->_item[$this->_tags[$this->_depth[$parser]]] .= $text;
-                        } else {
-                           $this->_item[$this->_tags[$this->_depth[$parser]]] = $text;
-                        }
-                } elseif (isset($this->_parse_mode) && $this->_parse_mode == "channel") {
-                        if ( isset($this->_citem[$this->_ctags[$this->_cdepth[$parser]]]) ) {
-                           $this->_citem[$this->_ctags[$this->_cdepth[$parser]]] .= $text;
-                        } else {
-                           $this->_citem[$this->_ctags[$this->_cdepth[$parser]]] = $text;
-                        }
-                }
-        }
-    }
-
-    /**
-    * This Method allows you to choose if specific Parameters are displayed or not. These are:
-    * image, channel, textinput, build and cache_update. If set to "hidden" those elements won't be displayed.
-    *
-    * @access    public
-       * @author    Stefan Saasen <s@fase4.com>
-    * @param     array  $options
-       * @see           _display_opt
-    */
-    function set_Options( $options = "" )
-    {
-        if(is_array( $options )) {
-            $this->_display_opt = $options;
-            return true;
-        } else {
-            unset($this->_display_opt);
-            return false;
-        }
-    }
-
-    /**
-    * This Method allows you to define the width of the table that holds the representation of the rdf/rss file.
-    *
-    * @access    public
-       * @author    Stefan Saasen <s@fase4.com>
-    * @param     int  $width  attribute width in tag <table>
-       * @see           _table_width
-    */
-    function set_table_width( $width = 400 )
-    {
-        $this->_table_width = $width;
-        return true;
-    }
-
-    /**
-    * This Method returns an assocative Array with available Options.
-    *
-    * The Keys are the Name of the Options to be set.
-    * The Values are  short Description of available Options.
-    *
-    * @access    public
-       * @author    Stefan Saasen <s@fase4.com>
-    * @return    array  $options
-       * @see           _display_opt
-    */
-    function get_Options()
-    {
-        $options = array(   "image"=>"If 'image' is set to \"hidden\" no image provided by the RDF Publisher will be displayed.",
+                                       $this->_clear_Items();
+                               } elseif( isset($this->_display_opt["textinput"]) && ($this->_display_opt["textinput"] == "hidden") ) {
+                                       $this->_clear_Items();
+                               }
+
+                               break;
+               }
+       }
+
+       /**
+        * This Method returns the data from the <channel /> paragraph.
+        *
+        * @access    public
+        * @author    Stefan Saasen <s@fase4.com>
+        * @return    array
+        * @see          _array_channel
+        */
+       function get_array_channel( )
+       {
+               return $this->_array_channel;
+       }
+
+       /**
+        * This Method returns the data from each <item /> paragraph.
+        *
+        * @access    public
+        * @author    Stefan Saasen <s@fase4.com>
+        * @return    array
+        * @see          _array_item
+        */
+       function get_array_item( )
+       {
+               return $this->_array_item;
+       }
+
+       /**
+        * This Method returns the data from <textinput />.
+        *
+        * @access    public
+        * @author    Stefan Saasen <s@fase4.com>
+        * @return    array
+        * @see          _array_textinput
+        */
+       function get_array_textinput( )
+       {
+               return $this->_array_textinput;
+       }
+
+       /**
+        * Getter for parser id from resource
+        *
+        * @access private
+        * @author      Roland Haeder <webmaster@mxchange.org>
+        * @return      int
+        */
+       function get_parser_id ($parser) {
+               // Default is zero
+               $id = 0;
+
+               // Is it a resource?
+               if (is_resource($parser)) {
+                       // Cast the resource into id
+                       $id = (int) $parser;
+               } // END - if
+
+               // Return the id
+               return $id;
+       }
+
+       /**
+        * This Method returns the data from <image />.
+        *
+        * @access    public
+        * @author    Stefan Saasen <s@fase4.com>
+        * @return    array
+        * @see          _array_image
+        */
+       function get_array_image( )
+       {
+               return $this->_array_image;
+       }
+
+       /**
+        * XML Parser Data Handler
+        *
+        * @access    private
+        * @author    Stefan Saasen <s@fase4.com>
+        * @param     mixed  $parser a reference to the XML parser calling the handler.
+        * @param     string $text contains the character data as a string.
+        * @see          _parse_mode, _item, _tags, _depth, _citem, _ctags, _cdepth
+        */
+       function _parseData($parser, $text)
+       {
+               // Deocing mode added by Roland Haeder <webmaster@mxchange.org>
+               switch ($this->_decoding_mode)
+               {
+                       case "utf8_decode":
+                               $text = utf8_decode($text);
+                               break;
+
+                       case "htmlentities":
+                               $text = htmlentities($text);
+                               break;
+               }
+
+               $clean = preg_replace("/\s/", "", $text);
+               if ($clean) {
+                       $text = preg_replace("/^\s+/", "", $text)."\n";
+                       if($this->_parse_mode == "all") {
+                               if ( isset($this->_item[$this->_tags[$this->_depth[$this->get_parser_id($parser)]]]) &&
+                               $this->_item[$this->_tags[$this->_depth[$this->get_parser_id($parser)]]] ) {
+                                       $this->_item[$this->_tags[$this->_depth[$this->get_parser_id($parser)]]] .= $text;
+                               } else {
+                                       $this->_item[$this->_tags[$this->_depth[$this->get_parser_id($parser)]]] = $text;
+                               }
+                       } elseif (isset($this->_parse_mode) && $this->_parse_mode == "channel") {
+                               if ( isset($this->_citem[$this->_ctags[$this->_cdepth[$this->get_parser_id($parser)]]]) ) {
+                                       $this->_citem[$this->_ctags[$this->_cdepth[$this->get_parser_id($parser)]]] .= $text;
+                               } else {
+                                       $this->_citem[$this->_ctags[$this->_cdepth[$this->get_parser_id($parser)]]] = $text;
+                               }
+                       }
+               }
+       }
+
+       /**
+        * This Method allows you to choose if specific Parameters are displayed or not. These are:
+        * image, channel, textinput, build and cache_update. If set to "hidden" those elements won't be displayed.
+        *
+        * @access    public
+        * @author    Stefan Saasen <s@fase4.com>
+        * @param     array  $options
+        * @see          _display_opt
+        */
+       function set_Options( $options = "" )
+       {
+               if(is_array( $options )) {
+                       $this->_display_opt = $options;
+                       return true;
+               } else {
+                       unset($this->_display_opt);
+                       return false;
+               }
+       }
+
+       /**
+        * This Method allows you to define the width of the table that holds the representation of the rdf/rss file.
+        *
+        * @access    public
+        * @author    Stefan Saasen <s@fase4.com>
+        * @param     int  $width  attribute width in tag <table>
+        * @see          _table_width
+        */
+       function set_table_width( $width = 400 )
+       {
+               $this->_table_width = $width;
+               return true;
+       }
+
+       /**
+        * This Method returns an assocative Array with available Options.
+        *
+        * The Keys are the Name of the Options to be set.
+        * The Values are  short Description of available Options.
+        *
+        * @access    public
+        * @author    Stefan Saasen <s@fase4.com>
+        * @return    array  $options
+        * @see          _display_opt
+        */
+       function get_Options()
+       {
+               $options = array(   "image"=>"If 'image' is set to \"hidden\" no image provided by the RDF Publisher will be displayed.",
                             "channel"=>"If 'channel' is set to \"hidden\" the Channel Meta Data (i.e the Title and the short description regarding the RDF Publisher will not be displayed",
                             "textinput"=>"If set to \"hidden\" no Input Form will be displayed",
                             "build"=>"If set to \"hidden\" the Build Date (if provided) of the RDF File will not be displayed",
                             "cache_update"=>"If set to \"hidden\" the Update Date/Time of the cached Rdf File will not be displayed");
-        return $options;
-    }
-
-    /**
-    * This Method returns the Content of the RDF File in one string. The String actually holds the whole XML Document.
-    *
-    * @access    public
-       * @author    Stefan Saasen <s@fase4.com>
-    * @param     string $rdf    RDF File (Location)
-    * @return    string XML Presentation of parsed RDF File
-       * @see           _cached_file, _remote_file, _cache_dir, _refresh, _update_cache()
-    */
-    function cache()
-    {
-        // checks if the cache directory already exists
-        // if not, the cache directory will be created
-        if(!$this->_cache_dir_ok) {
-            $this->_create_cache_dir();
-        }
-        if($this->_use_dynamic_display == true) {
-            $this->_cached_file = md5("dynamic".$this->salt.$this->_remote_file);
-            $this->_cache_type = "normal";
-        } else {
-            $this->_cached_file = md5($this->salt.$this->_remote_file);
-            $this->_cache_type = "fast";
-        }
-
-        $_cache_f = $this->_cache_dir.$this->_cached_file;
-
-        if ( (!file_exists($_cache_f)) || (filemtime($_cache_f) < $this->_refresh) || (filesize($_cache_f) == 0)) {
-        // We have to parse the remote file
-        $this->_use_cached_file = false;
-            // --> we want to provide proper Information for Use in
-            // get_cache_update_time()
-            clearstatcache();
-            if($this->_use_dynamic_display == true) {
-                $_rdf = @implode(" ", $this->_rdf_data()); // -> proxy
-                if(!$_rdf) {
-                    $this->_throw_exception( $this->_remote_file." is not available" );
-                }
-                $this->_parse_xRDF( $_rdf );
-                $this->_update_cache( $_rdf );
-                $data = $this->_output;
-            } else {
-                $_rdf = @implode(" ", $this->_rdf_data()); // -> proxy
-                if(!$_rdf) {
-                    $this->_throw_exception( $this->_remote_file." is not available" );
-                }
-                $this->_parse_xRDF( $_rdf );
-                $this->_update_cache( $this->_output );
-                $data = $this->_output;
-            }
-        } else {
-        // we can use the cached file
-        $this->_use_cached_file = true;
-            if($this->_use_dynamic_display == true) {
-                $this->_parse_xRDF( implode(" ", file($_cache_f)) );
-                $data = $this->_output;
-            } else {
-                $data = @implode(" ", file($_cache_f));
-            }
-        }
-        return trim($data);
-    }   // END cache()
-
-    /**
-    * This Methods creates the Cache Directory if the specified Directory does not exist.
-    *
-    * @access    private
-       * @author    Stefan Saasen <s@fase4.com>
-    * @param     string $dir Path to Directory.
-       * @return        boolean
-       * @see           _cache_dir, _cache_dir_ok
-    */
-    function _create_cache_dir()
-    {
-        $path = "";
-        if(!@is_dir($this->_cache_dir)) {
-            $arr = explode("/", $this->_cache_dir);
-            $c = count($arr);
-            if($arr[0]=="") {
-                $path = "/";
-            }
-            for($i = 0;$i<$c;$i++)
-            {
-                if($arr[$i]!="") {
-                    $path .= $arr[$i]."/";
-                    if(!@is_dir($path)) {
-                       if(!@mkdir($path, 0777)) {
-                            $this->_throw_exception("failed to create directory:<b>".$this->_cache_dir."</b>.<br /><br />Exception on Line: ".__LINE__);
-                        return false;
-                        }
-                    }
-                }
-            }
-            $this->_cache_dir_ok = true;
-            return true;
-        } else {
-            $this->_cache_dir_ok = true;
-            return true;
-        }
-    }   // END _create_cache_dir()
-
-    /**
-    * This Method updates the cached RDF Files and synchronises them with their remote Counterparts.
-    *
-    * @access    private
-       * @author    Stefan Saasen <s@fase4.com>
-    * @param     string $rdf    RDF File (Location)
-       * @see           _cache_dir, _cached_file, _throw_exception()
-    */
-    function _update_cache( $content = "" )
-    {
-             $_local = @fopen( $this->_cache_dir.$this->_cached_file, 'w' );
-             if(!$_local) {
-                $this->_throw_exception( "Cannot open ".$this->_cached_file."<br /><br />Exception at Line: ".__LINE__ );
-                return false;
-             }
-             if (fwrite( $_local, $content) === false) {
-                       $this->_throw_exception( "Cannot write to ".$this->_cached_file."<br /<br />Exeception at Line: ".__LINE__);
-                       return false;
-                  }
-             fclose( $_local );
-                  @chmod( $this->_cache_dir.$this->_cached_file, 0666);
-             return true;
-    }   // END _update_cache()
-
-    /**
-    * This Method returns the Date/Time of last Cache Update of the actually parsed RDF File.
-       *
-    * @access    public
-       * @author    Stefan Saasen <s@fase4.com>
-       * @return        string Date/Time of last Update
-       * @see           _cache_dir, _cached_file
-    */
-    function get_cache_update_time()
-    {
-            return (file_exists($this->_cache_dir.$this->_cached_file))?date("d.m.Y H:i:s", filemtime($this->_cache_dir.$this->_cached_file)):"Cachemiss";
-    }   // END get_cache_update_time()
-
-    /**
-    * This Method returns the Type of Cache that was used ('normal' or 'fast')
-    *
-    * @access    public
-       * @author    Stefan Saasen <s@fase4.com>
-    * @param     string $rdf    RDF File (Location)
-    * @return    string Displays RDF Content ( using _display() )
-       * @see           _remote_file, cache()
-    */
-    function get_CacheType()
-    {
-        return $this->_cache_type;
-    }
-
-    /**
-    * Returns true if cached file was used, otherwise false
-    *
-    * @access    public
-       * @author    Stefan Saasen <s@fase4.com>
-    * @return    array  $options
-       * @see           _use_cached_file
-    */
-    function is_cachedFile()
-    {
-        return $this->_use_cached_file;
-    }
-
-    /**
-    * This Method deletes all the cached Files.
-    *
-    * Please keep in mind to use this method just as a 'manual garbage collection'
-    * You should cache the rss/rdf files locally to avoid unnecessary traffic.
-    * (Both for your visitors and the Publisher)
-       *
-    * @access    public
-       * @author    Stefan Saasen <s@fase4.com>
-       * @see           _cache_dir
-    */
-    function clear_cache()
-    {
-        $dir = dir($this->_cache_dir);
-        while($file=$dir->read()) {
-            if($file!="." && $file!="..")  {
-                if(!@unlink($dir->path.$file)) {
-                    $this->_throw_exception(
-                    "Unable to unlink ".$dir->path.$file
-                    ."<br /><br />Exception at Line: ".__LINE__ );
-                    return false;
-                }
-            }
-        }
-        $dir->close();
-        return true;
-    }   // END clear_cache()
-
-    /**
-    * Cuts the String $string after $str_len and adds "... "
-    *
-    * @access   private
-    * @param    string  $string String to be shortened
-    * @param    int     $str_len length of the returned String (overall length including "... ")
-    * @return   string  Cut String
-    */
-    function _cut_string( $string, $str_len = "30" )
-    {
-        if(strlen(trim($string))>$str_len) {
-        $string = substr( trim($string) , 0, $str_len - 4);
-        $string .= " ...";
-        }
-        return $string;
-    }   // END _cut_string()
-
-    /**
-    * this Method implements simple Garbage Collection
-    *
-    * @access    private
-       * @author    Stefan Saasen <s@fase4.com>
-       * @see           _cache_dir, gc_probability, gc_maxlifetime
-    */
-    function _garbage_collection()
-    {
-        srand((double) microtime() * 1000000);
-        if (rand(1, 100) <= $this->gc_probability) {
-            $dir = dir($this->_cache_dir);
-            while($file=$dir->read()) {
-                if($file!="." AND $file!=".." AND filemtime($dir->path.$file) <= time() - $this->_refresh )  {
-                @unlink($dir->path.$file);
-                }
-        }
-        $dir->close();
-        }   // END if
-    }
-
-    /* ==== Proxy/Auth methods ==== */
-
-   /**
-    * this method sets a proxy server
-    *
-    * @access    public
-    * @param     string $phost Proxy Host
-    * @param     string $pport Prox Port
-    * @author    Marco Kraus <marco.kraus@siemens.com>
-    */
-    function set_proxy($phost, $pport)
-    {
-     $this->_use_proxy = true;
-
-     if ($phost != "")
-        $this->_phost = $phost;
-
-     if ($pport != "")
-        $this->_pport = $pport;
-    }
-
-    /**
-    * this method sets a proxy server authentification
-    *
-    * @access    public
-    * @param     string $pname Username
-    * @param     string $ppaswd Password
-    * @author    Marco Kraus <marco.kraus@siemens.com>
-    */
-    function set_proxy_auth( $pname, $ppasswd )
-    {
-     $this->_use_proxy_auth = true;
-
-     if ($pname != "")
-        $this->_pname = $pname;
-
-     if ($ppasswd != "")
-        $this->_ppasswd = $ppasswd;
-    }
-
-
-   /**
-    * gets _remote_file into an array
-    *
-    * needed, cause if you use a proxy, you have to open
-    * a raw-tcp-socket to get the data
-    *
-    * @access    private
-    * @author    Marco Kraus <Marco.Kraus@siemens.com>
-    * @return array
-    * @see _use_proxy, cache()
-    */
-    function _rdf_data()
-    {
-      if ( $this->_use_proxy == true )
-      {
-       // we need a raw socket here to connect to proxy
-       $fp = fsockopen($this->_phost,$this->_pport);
-
-       if (!$fp) {
-           $this->_throw_exception( $this->_remote_file." is not available with proxy" );
-       } else {
-        if ( $this->_use_proxy_auth == true ) {
-             fputs($fp, "GET ".$this->_remote_file." HTTP/1.0\r\nUser-Agent: Fase4 RDF-Reader/1.40 modified by Quix0r\r\n\r\n");
-           } else {
-             fputs($fp, "GET ".$this->_remote_file." HTTP/1.0\r\nUser-Agent: Fase4 RDF-Reader/1.40 modified by Quix0r\r\nProxy-Authorization: Basic ".base64_encode("$this->_pname:$this->_ppasswd") ."\r\n\r\n");
-           }
-        }
-
-
-       for ( $i = 0; !feof ($fp) ; $i++)
-       {
-          $usable_data[$i] = "";
-          $usable_data[$i] = fgets($fp,4096);
-
-        // PARSE HEADER ---- first line has to be <?xml, second rdf or rss, and third is blank
-
-        // strstr did not fit (ask Rasmus why), so we compare each character
-            if ( ($usable_data[$i][0] == "<" ) &&
-               ($usable_data[$i][1] == "?" ) &&
-               ($usable_data[$i][2] == "x" ) &&
-               ($usable_data[$i][3] == "m" ) &&
-               ($usable_data[$i][4] == "l" ) ) {
-                    $usable_data[0] = $usable_data[$i]; // save current field
-                      $i = 1; // just reset array to start
-              }
-
-        // there seems to be proxystuff after the <?xml....we delete this
-            if ( (
-               ($usable_data[$i][0] == "<" ) &&
-               ($usable_data[$i][1] == "r" ) &&
-               ($usable_data[$i][2] == "d" ) &&
-               ($usable_data[$i][3] == "f" ) &&
-               ($usable_data[$i][4] == ":" )
-               )
-               ||
-               (
-               ($usable_data[$i][0] == "<" ) &&
-               ($usable_data[$i][1] == "r" ) &&
-               ($usable_data[$i][2] == "s" ) &&
-               ($usable_data[$i][3] == "s" )
-               )
-            ) {
-
-                $usable_data[1] = $usable_data[$i]; // save current field
-                $usable_data[2] = "\n";
-                $i = 2; // just reset array to start
-          }
-       }
-
-       fclose($fp);
-       return $usable_data;
-     } else {
-               if (substr($this->_remote_file, 0, 7) != "http://") {
-                       $this->_throw_exception( "Cannot find http:// in ".$this->_remote_file."!" );
-                       return "";
+               return $options;
+       }
+
+       /**
+        * This Method returns the Content of the RDF File in one string. The String actually holds the whole XML Document.
+        *
+        * @access    public
+        * @author    Stefan Saasen <s@fase4.com>
+        * @param     string $rdf    RDF File (Location)
+        * @return    string XML Presentation of parsed RDF File
+        * @see          _cached_file, _remote_file, _cache_dir, _refresh, _update_cache()
+        */
+       function cache()
+       {
+               // checks if the cache directory already exists
+               // if not, the cache directory will be created
+               if(!$this->_cache_dir_ok) {
+                       $this->_create_cache_dir();
+               }
+               if($this->_use_dynamic_display == true) {
+                       $this->_cached_file = md5("dynamic".$this->salt.$this->_remote_file) . '.cache';
+                       $this->_cache_type = "normal";
                } else {
-                       // Extract host information
-                       $host = substr($this->_remote_file, 7);
-                       // Extract the GET part
-                       $get = "/";
-                       if (strpos($host, "/") > 0) {
-                               $get = substr($host, strpos($host, "/"));
-                               $host = substr($host, 0, strpos($host, "/"));
+                       $this->_cached_file = md5($this->salt.$this->_remote_file) . '.cache';
+                       $this->_cache_type = "fast";
+               }
+
+               $_cache_f = $this->_cache_dir.$this->_cached_file;
+
+               if ( (!file_exists($_cache_f)) || (filemtime($_cache_f) < $this->_refresh) || (filesize($_cache_f) == 0)) {
+                       // We have to parse the remote file
+                       $this->_use_cached_file = false;
+                       // --> we want to provide proper Information for Use in
+                       // get_cache_update_time()
+                       clearstatcache();
+                       if($this->_use_dynamic_display == true) {
+                               $_rdf = @implode(" ", $this->_rdf_data()); // -> proxy
+                               if(!$_rdf) {
+                                       $this->_throw_exception( $this->_remote_file." is not available" );
+                               }
+                               $this->_parse_xRDF( $_rdf );
+                               $this->_update_cache( $_rdf );
+                               $data = $this->_output;
+                       } else {
+                               $_rdf = @implode(" ", $this->_rdf_data()); // -> proxy
+                               if(!$_rdf) {
+                                       $this->_throw_exception( $this->_remote_file." is not available" );
+                               }
+                               $this->_parse_xRDF( $_rdf );
+                               $this->_update_cache( $this->_output );
+                               $data = $this->_output;
                        }
-                       // Extract port
-                       $port = "80";
-                       if (strpos($host, ":") > 0) {
-                               $port = substr($host, (strpos($host, ":") + 1));
-                               $host = substr($host, 0, (strpos($host, ":") - 1));
+               } else {
+                       // we can use the cached file
+                       $this->_use_cached_file = true;
+                       if($this->_use_dynamic_display == true) {
+                               $this->_parse_xRDF( implode(" ", file($_cache_f)) );
+                               $data = $this->_output;
+                       } else {
+                               $data = @implode(" ", file($_cache_f));
+                       }
+               }
+               return trim($data);
+       }   // END cache()
+
+       /**
+        * This Methods creates the Cache Directory if the specified Directory does not exist.
+        *
+        * @access    private
+        * @author    Stefan Saasen <s@fase4.com>
+        * @param     string $dir Path to Directory.
+        * @return       boolean
+        * @see          _cache_dir, _cache_dir_ok
+        */
+       function _create_cache_dir()
+       {
+               $path = "";
+               if(!@is_dir($this->_cache_dir)) {
+                       $arr = explode("/", $this->_cache_dir);
+                       $c = count($arr);
+                       if($arr[0]=="") {
+                               $path = "/";
+                       }
+                       for($i = 0;$i<$c;$i++)
+                       {
+                               if($arr[$i]!="") {
+                                       $path .= $arr[$i]."/";
+                                       if(!@is_dir($path)) {
+                                               if(!@mkdir($path, 0777)) {
+                                                       $this->_throw_exception("failed to create directory:<b>".$this->_cache_dir."</b>.<br /><br />Exception on Line: ".__LINE__);
+                                                       return false;
+                                               }
+                                       }
+                               }
                        }
+                       $this->_cache_dir_ok = true;
+                       return true;
+               } else {
+                       $this->_cache_dir_ok = true;
+                       return true;
+               }
+       }   // END _create_cache_dir()
+
+       /**
+        * This Method updates the cached RDF Files and synchronises them with their remote Counterparts.
+        *
+        * @access    private
+        * @author    Stefan Saasen <s@fase4.com>
+        * @param     string $rdf    RDF File (Location)
+        * @see          _cache_dir, _cached_file, _throw_exception()
+        */
+       function _update_cache( $content = "" )
+       {
+               $_local = @fopen( $this->_cache_dir.$this->_cached_file, 'w' );
+               if(!$_local) {
+                       $this->_throw_exception( "Cannot open ".$this->_cached_file."<br /><br />Exception at Line: ".__LINE__ );
+                       return false;
+               }
+               if (fwrite( $_local, $content) === false) {
+                       $this->_throw_exception( "Cannot write to ".$this->_cached_file."<br /<br />Exeception at Line: ".__LINE__);
+                       return false;
+               }
+               fclose( $_local );
+               @chmod( $this->_cache_dir.$this->_cached_file, 0666);
+               return true;
+       }   // END _update_cache()
+
+       /**
+        * This Method returns the Date/Time of last Cache Update of the actually parsed RDF File.
+        *
+        * @access    public
+        * @author    Stefan Saasen <s@fase4.com>
+        * @return       string Date/Time of last Update
+        * @see          _cache_dir, _cached_file
+        */
+       function get_cache_update_time()
+       {
+               return (file_exists($this->_cache_dir.$this->_cached_file))?date("d.m.Y H:i:s", filemtime($this->_cache_dir.$this->_cached_file)):"Cachemiss";
+       }   // END get_cache_update_time()
+
+       /**
+        * This Method returns the Type of Cache that was used ('normal' or 'fast')
+        *
+        * @access    public
+        * @author    Stefan Saasen <s@fase4.com>
+        * @param     string $rdf    RDF File (Location)
+        * @return    string Displays RDF Content ( using _display() )
+        * @see          _remote_file, cache()
+        */
+       function get_CacheType()
+       {
+               return $this->_cache_type;
+       }
+
+       /**
+        * Returns true if cached file was used, otherwise false
+        *
+        * @access    public
+        * @author    Stefan Saasen <s@fase4.com>
+        * @return    array  $options
+        * @see          _use_cached_file
+        */
+       function is_cachedFile()
+       {
+               return $this->_use_cached_file;
+       }
+
+       /**
+        * This Method deletes all the cached Files.
+        *
+        * Please keep in mind to use this method just as a 'manual garbage collection'
+        * You should cache the rss/rdf files locally to avoid unnecessary traffic.
+        * (Both for your visitors and the Publisher)
+        *
+        * @access    public
+        * @author    Stefan Saasen <s@fase4.com>
+        * @see          _cache_dir
+        */
+       function clear_cache()
+       {
+               $dir = dir($this->_cache_dir);
+               while($file=$dir->read()) {
+                       // Exclude directories
+                       if (is_file($dir->path.$file) && substr($file, -6, 6) != ".cache" && substr($file, -4, 4) != ".log")  {
+                               if(!@unlink($dir->path.$file)) {
+                                       $this->_throw_exception("Unable to unlink ".$dir->path.$file."<br />\n<br />\nException at Line: ".__LINE__ );
+                                       return false;
+                               } // END - if
+                       } // END - if
+               } // END - while
+               $dir->close();
+               return true;
+       }   // END clear_cache()
+
+       /**
+        * Cuts the String $string after $str_len and adds "... "
+        *
+        * @access   private
+        * @param    string  $string String to be shortened
+        * @param    int     $str_len length of the returned String (overall length including "... ")
+        * @return   string  Cut String
+        */
+       function _cut_string( $string, $str_len = "30" )
+       {
+               if(strlen(trim($string))>$str_len) {
+                       $string = substr( trim($string) , 0, $str_len - 4);
+                       $string .= " ...";
+               }
+               return $string;
+       }   // END _cut_string()
+
+       /**
+        * this Method implements simple Garbage Collection
+        *
+        * @access    private
+        * @author    Stefan Saasen <s@fase4.com>
+        * @see          _cache_dir, gc_probability, gc_maxlifetime
+        */
+       function _garbage_collection()
+       {
+               srand((double) microtime() * 1000000);
+               if (mt_rand(1, 100) <= $this->gc_probability) {
+                       $dir = dir($this->_cache_dir);
+                       while($file=$dir->read()) {
+                               if (is_file($dir->path.$file) && substr($file, -6, 6) != ".cache" && substr($file, -4, 4) != ".log" && filemtime($dir->path.$file) <= time() - $this->_refresh )  {
+                                       @unlink($dir->path.$file);
+                               } // END - if
+                       }
+                       $dir->close();
+               }   // END if
+       }
+
+       /* ==== Proxy/Auth methods ==== */
+
+       /**
+        * this method sets a proxy server
+        *
+        * @access    public
+        * @param     string $phost Proxy Host
+        * @param     string $pport Prox Port
+        * @author    Marco Kraus <marco.kraus@siemens.com>
+        */
+       function set_proxy($phost, $pport)
+       {
+               $this->_use_proxy = true;
+
+               if ($phost != '')
+               $this->_phost = $phost;
+
+               if ($pport != '')
+               $this->_pport = $pport;
+       }
+
+       /**
+        * this method sets a proxy server authentification
+        *
+        * @access    public
+        * @param     string $pname Username
+        * @param     string $ppaswd Password
+        * @author    Marco Kraus <marco.kraus@siemens.com>
+        */
+       function set_proxy_auth( $pname, $ppasswd )
+       {
+               $this->_use_proxy_auth = true;
+
+               if ($pname != '')
+               $this->_pname = $pname;
+
+               if ($ppasswd != '')
+               $this->_ppasswd = $ppasswd;
+       }
+
+
+       /**
+        * gets _remote_file into an array
+        *
+        * needed, cause if you use a proxy, you have to open
+        * a raw-tcp-socket to get the data
+        *
+        * @access    private
+        * @author    Marco Kraus <Marco.Kraus@siemens.com>
+        * @return array
+        * @see _use_proxy, cache()
+        */
+       function _rdf_data()
+       {
+               if ( $this->_use_proxy == true )
+               {
+                       // we need a raw socket here to connect to proxy
+                       $fp = fsockopen($this->_phost,$this->_pport);
 
-                       // Start connection to server
-                       $fp = fsockopen($host, $port);
                        if (!$fp) {
-                   $this->_throw_exception( $this->_remote_file." is maybe not available." );
-                         return "";
-                       }
-                       // Repare request line
-                       $request = sprintf("GET %s HTTP/1.0\r\nHost: %s\r\nUser-Agent: Fase4 RDF-Reader/1.40 modified by Quix0r\r\n\r\n", $get, $host);
-                       // Send request out
-                       fputs($fp, $request);
-                       $reply = ""; $isContent = false; $dummy = "";
-                       // Read reply
-                       while ( !feof($fp) ) {
-                               $read = trim(fgets($fp, 4096));
-                               if (substr($read, 0, 5) == "<?xml" || $isContent) {
-                                       // Add content
-                                       $reply[] = $read;
-                                       $isContent = true;
+                               $this->_throw_exception( $this->_remote_file." is not available with proxy" );
+                       } else {
+                               if ( $this->_use_proxy_auth == true ) {
+                                       fputs($fp, "GET ".$this->_remote_file." HTTP/1.0\r\nUser-Agent: Fase4 RDF-Reader/1.40 modified by Quix0r\r\n\r\n");
                                } else {
-                                       // Put in dummy
-                                       $dummy[] = $read;
+                                       fputs($fp, "GET ".$this->_remote_file." HTTP/1.0\r\nUser-Agent: Fase4 RDF-Reader/1.40 modified by Quix0r\r\nProxy-Authorization: Basic ".base64_encode("$this->_pname:$this->_ppasswd") ."\r\n\r\n");
                                }
-                               $i++;
                        }
-                       if ((count($dummy) > 0) && (count($reply) == 0) && (!$isContent)) {
-                               // Transfer content from dummy
-                               $reply = $content;
+
+
+                       for ( $i = 0; !feof ($fp) ; $i++)
+                       {
+                               $usable_data[$i] = "";
+                               $usable_data[$i] = fgets($fp,4096);
+
+                               // PARSE HEADER ---- first line has to be <?xml, second rdf or rss, and third is blank
+
+                               // strstr did not fit (ask Rasmus why), so we compare each character
+                               if ( ($usable_data[$i][0] == "<" ) &&
+                               ($usable_data[$i][1] == "?" ) &&
+                               ($usable_data[$i][2] == "x" ) &&
+                               ($usable_data[$i][3] == "m" ) &&
+                               ($usable_data[$i][4] == "l" ) ) {
+                                       $usable_data[0] = $usable_data[$i]; // save current field
+                                       $i = 1; // just reset array to start
+                               }
+
+                               // there seems to be proxystuff after the <?xml....we delete this
+                               if ( (
+                               ($usable_data[$i][0] == "<" ) &&
+                               ($usable_data[$i][1] == "r" ) &&
+                               ($usable_data[$i][2] == "d" ) &&
+                               ($usable_data[$i][3] == "f" ) &&
+                               ($usable_data[$i][4] == ":" )
+                               )
+                               ||
+                               (
+                               ($usable_data[$i][0] == "<" ) &&
+                               ($usable_data[$i][1] == "r" ) &&
+                               ($usable_data[$i][2] == "s" ) &&
+                               ($usable_data[$i][3] == "s" )
+                               )
+                               ) {
+
+                                       $usable_data[1] = $usable_data[$i]; // save current field
+                                       $usable_data[2] = "\n";
+                                       $i = 2; // just reset array to start
+                               }
                        }
+
                        fclose($fp);
-                       //die(htmlentities($reply));
-                       return $reply;
+                       return $usable_data;
+               } else {
+                       if (substr($this->_remote_file, 0, 7) != "http://") {
+                               $this->_throw_exception( "Cannot find http:// in ".$this->_remote_file."!" );
+                               return "";
+                       } else {
+                               // Extract host information
+                               $host = substr($this->_remote_file, 7);
+                               // Extract the GET part
+                               $get = "/";
+                               if (strpos($host, "/") > 0) {
+                                       $get = substr($host, strpos($host, "/"));
+                                       $host = substr($host, 0, strpos($host, "/"));
+                               }
+                               // Extract port
+                               $port = "80";
+                               if (strpos($host, ":") > 0) {
+                                       $port = substr($host, (strpos($host, ":") + 1));
+                                       $host = substr($host, 0, (strpos($host, ":") - 1));
+                               }
+
+                               // Start connection to server
+                               $fp = fsockopen($host, $port);
+                               if (!$fp) {
+                                       $this->_throw_exception( $this->_remote_file." is maybe not available." );
+                         return "";
+                               }
+                               // Repare request line
+                               $request = sprintf("GET %s HTTP/1.0\r\nHost: %s\r\nUser-Agent: Fase4 RDF-Reader/1.40 modified by Quix0r\r\n\r\n", $get, $host);
+                               // Send request out
+                               fputs($fp, $request);
+                               $reply = ""; $isContent = false; $dummy = "";
+                               // Read reply
+                               $i=0;
+                               while ( !feof($fp) ) {
+                                       $read = trim(fgets($fp, 4096));
+                                       if (substr($read, 0, 5) == "<?xml" || $isContent) {
+                                               // Add content
+                                               $reply[] = $read;
+                                               $isContent = true;
+                                       } else {
+                                               // Put in dummy
+                                               $dummy[] = $read;
+                                       }
+                                       $i++;
+                               }
+                               if ((count($dummy) > 0) && (count($reply) == 0) && (!$isContent)) {
+                                       // Transfer content from dummy
+                                       $reply = $content;
+                               }
+                               fclose($fp);
+                               //die(htmlentities($reply));
+                               return $reply;
+                       }
                }
-     }
-   }    // END _rdf_data()
+       }    // END _rdf_data()
 }   // END class
 ?>