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Name File: sitemap.class.php

< back
<?php
/**
 * Google XML Sitemap Feed
 *
 * The Google sitemap service was announced on 2 June 2005 and represents
 * a huge development in terms of crawler technology.  This contribution is
 * designed to create the sitemap XML feed per the specification delineated 
 * by Google. 
 * @package Google-XML-Sitemap-Feed
 * @license http://opensource.org/licenses/gpl-license.php GNU Public License
 * @version 1.0
 * @link http://www.oscommerce-freelancers.com/ osCommerce-Freelancers
 * @link http://www.google.com/webmasters/sitemaps/docs/en/about.html About Google Sitemap 
 * @copyright Copyright 2005, Bobby Easland 
 * @author Bobby Easland 
 * @filesource
 */

/**
 * MySQL_Database Class
 *
 * The MySQL_Database class provides abstraction so the databaes can be accessed
 * without having to use tep API functions. This class has minimal error handling
 * so make sure your code is tight!
 * @package Google-XML-Sitemap-Feed
 * @license http://opensource.org/licenses/gpl-license.php GNU Public License
 * @version 1.1
 * @link http://www.oscommerce-freelancers.com/ osCommerce-Freelancers
 * @copyright Copyright 2005, Bobby Easland 
 * @author Bobby Easland 
 */
class MySQL_DataBase{
	/**
 	* Database host (localhost, IP based, etc)
	* @var string
 	*/
	var $host;
	/**
 	* Database user
	* @var string
 	*/
	var $user;
	/**
 	* Database name
	* @var string
 	*/
	var $db;
	/**
 	* Database password
	* @var string
 	*/
	var $pass;
	/**
 	* Database link
	* @var resource
 	*/
	var $link_id;

/**
 * MySQL_DataBase class constructor 
 * @author Bobby Easland 
 * @version 1.0
 * @param string $host
 * @param string $user
 * @param string $db
 * @param string $pass  
 */	
	function MySQL_DataBase($host, $user, $db, $pass){
		$this->host = $host;
		$this->user = $user;
		$this->db = $db;
		$this->pass = $pass;		
		$this->ConnectDB();
		$this->SelectDB();
	} # end function

/**
 * Function to connect to MySQL 
 * @author Bobby Easland 
 * @version 1.0
 */	
	function ConnectDB(){
		$this->link_id = mysql_connect($this->host, $this->user, $this->pass);
	} # end function
	
/**
 * Function to select the database
 * @author Bobby Easland 
 * @version 1.0
 * @return resoource 
 */	
	function SelectDB(){
		return mysql_select_db($this->db);
	} # end function
	
/**
 * Function to perform queries
 * @author Bobby Easland 
 * @version 1.0
 * @param string $query SQL statement
 * @return resource 
 */	
	function Query($query){
		return @mysql_query($query, $this->link_id);
	} # end function
	
/**
 * Function to fetch array
 * @author Bobby Easland 
 * @version 1.0
 * @param resource $resource_id
 * @param string $type MYSQL_BOTH or MYSQL_ASSOC
 * @return array 
 */	
	function FetchArray($resource_id, $type = MYSQL_BOTH){
		return @mysql_fetch_array($resource_id, $type);
	} # end function
	
/**
 * Function to fetch the number of rows
 * @author Bobby Easland 
 * @version 1.0
 * @param resource $resource_id
 * @return mixed  
 */	
	function NumRows($resource_id){
		return @mysql_num_rows($resource_id);
	} # end function
	
/**
 * Function to free the resource
 * @author Bobby Easland 
 * @version 1.0
 * @param resource $resource_id
 * @return boolean
 */	
	function Free($resource_id){
		return @mysql_free_result($resource_id);
	} # end function

/**
 * Function to add slashes
 * @author Bobby Easland 
 * @version 1.0
 * @param string $data
 * @return string 
 */	
	function Slashes($data){
		return addslashes($data);
	} # end function

/**
 * Function to perform DB inserts and updates - abstracted from osCommerce-MS-2.2 project
 * @author Bobby Easland 
 * @version 1.0
 * @param string $table Database table
 * @param array $data Associative array of columns / values
 * @param string $action insert or update
 * @param string $parameters
 * @return resource
 */	
	function DBPerform($table, $data, $action = 'insert', $parameters = '') {
		reset($data);
		if ($action == 'insert') {
		  $query = 'INSERT INTO `' . $table . '` (';
		  while (list($columns, ) = each($data)) {
			$query .= '`' . $columns . '`, ';
		  }
		  $query = substr($query, 0, -2) . ') values (';
		  reset($data);
		  while (list(, $value) = each($data)) {
			switch ((string)$value) {
			  case 'now()':
				$query .= 'now(), ';
				break;
			  case 'null':
				$query .= 'null, ';
				break;
			  default:
				$query .= "'" . $this->Slashes($value) . "', ";
				break;
			}
		  }
		  $query = substr($query, 0, -2) . ')';
		} elseif ($action == 'update') {
		  $query = 'UPDATE `' . $table . '` SET ';
		  while (list($columns, $value) = each($data)) {
			switch ((string)$value) {
			  case 'now()':
				$query .= '`' .$columns . '`=now(), ';
				break;
			  case 'null':
				$query .= '`' .$columns .= '`=null, ';
				break;
			  default:
				$query .= '`' .$columns . "`='" . $this->Slashes($value) . "', ";
				break;
			}
		  }
		  $query = substr($query, 0, -2) . ' WHERE ' . $parameters;
		}
		return $this->Query($query);
	} # end function	
} # end class

/**
 * Google Sitemap Base Class
 *
 * The MySQL_Database class provides abstraction so the databaes can be accessed
 * @package Google-XML-Sitemap-Feed
 * @license http://opensource.org/licenses/gpl-license.php GNU Public License
 * @version 1.2
 * @link http://www.oscommerce-freelancers.com/ osCommerce-Freelancers
 * @link http://www.google.com/webmasters/sitemaps/docs/en/about.html About Google Sitemap
 * @copyright Copyright 2005, Bobby Easland 
 * @author Bobby Easland 
 */
class GoogleSitemap{
	/**
 	* $DB is the database object
	* @var object
 	*/
	var $DB;
	/**
 	* $filename is the base name of the feeds (i.e. - 'sitemap')
	* @var string
 	*/
	var $filename;
	/**
 	* $savepath is the path where the feeds will be saved - store root
	* @var string
 	*/
	var $savepath;
	/**
 	* $base_url is the URL for the catalog
	* @var string
 	*/
	var $base_url;
	/**
 	* $debug holds all the debug data
	* @var array
 	*/
	var $debug;
	/**
 	* $excludeList holds the files being excluded from the pages map
	* @var array
 	*/
	var $excludeList;  

	
/**
 * GoogleSitemap class constructor 
 * @author Bobby Easland 
 * @version 1.0
 * @param string $host Database host setting (i.e. - localhost)
 * @param string $user Database user
 * @param string $db Database name
 * @param string $pass Database password
 */	
	function GoogleSitemap($host, $user, $db, $pass){
		$this->DB = new MySQL_Database($host, $user, $db, $pass);
		$this->filename = "sitemap";
		$this->savepath = DIR_FS_CATALOG;
		$this->base_url = HTTP_SERVER . DIR_WS_HTTP_CATALOG;
		$this->debug = array();
    
    $this->excludeList = array(0 => 'account.php',
                               1 => 'account_edit.php',
                               2 => 'account_history.php',
                               3 => 'account_history_info.php',
                               4 => 'account_newsletters.php',
                               5 => 'account_notifications.php',
                               6 => 'account_password.php',
                               7 => 'address_book.php',
                               8 => 'address_book_process.php',
                               9 => 'checkout_confirmation.php',
                               10 => 'checkout_payment.php',
                               11 => 'checkout_payment_address.php',
                               12 => 'checkout_process.php',
                               13 => 'checkout_shipping.php',
                               14 => 'checkout_shipping_address.php',
                               15 => 'checkout_success.php',
                               16 => 'cookie_usage.php',
                               17 => 'create_account.php',
                               18 => 'create_account_success.php',
                               19 => 'down_for_maintenance.php',
                               20 => 'download.php',                               
                               21 => 'info_shopping_cart.php',
                               22 => 'links_submit_success.php',
                               23 => 'login.php',
                               24 => 'logoff.php',
                               25 => 'password_forgotten.php',
                               26 => 'shopping_cart.php',
                               27 => 'ssl_check.php'
                               );
    
    // Add the pages listed in the database                           
    $adminExclude = explode(",",GOOGLE_XML_SITEMAP_EXCLUDE_PAGES);
    $newFiles = array();
    for ($i = 0; $i < count($adminExclude); ++$i)
      $newFiles[] = trim($adminExclude[$i]);
    $this->excludeList = array_merge($this->excludeList, $newFiles);
	} # end class constructor

/**
 * Function to save the sitemap data to file as either XML or XML.GZ format
 * @author Bobby Easland 
 * @version 1.1
 * @param string $data XML data
 * @param string $type Feed type (index, products, categories)
 * @return boolean
 */	
	function SaveFile($data, $type){
  
		$filename = $this->savepath . $this->filename . $type;		

    if (strpos($filename, 'googlesitemap') !== FALSE)
    {
      $file_check = file_exists($filename) ? 'true' : 'false';
			$this->debug['SAVE_FILE_XML'][] = array('file' => $filename, 'status' => 'failure due to incorrect file name', 'file_exists' => $file_check);
			return false;
    }    	
    
		$compress = defined('GOOGLE_SITEMAP_COMPRESS') ? GOOGLE_SITEMAP_COMPRESS : 'false';
		if ($type == 'index') $compress = 'false';
		switch($compress){
			case 'true':
				$filename .= '.xml.gz';
				if ($gz = gzopen($filename,'wb9')){
					gzwrite($gz, $data);
					gzclose($gz);
					$this->debug['SAVE_FILE_COMPRESS'][] = array('file' => $filename, 'status' => 'success', 'file_exists' => 'true');
					return true;
				} else {
					$file_check = file_exists($filename) ? 'true' : 'false';
					$this->debug['SAVE_FILE_COMPRESS'][] = array('file' => $filename, 'status' => 'failure', 'file_exists' => $file_check);
					return false;
				}
				break;
			default:
				$filename .= '.xml';
         if (GOOGLE_XML_SITEMAP_SHOW_DIAGNOSTIC == 'true')
           echo 'Opening   '.$filename. '<br>FS_CAT    '.DIR_FS_CATALOG. '<br>Server    ' . HTTP_SERVER . '<br>Save Path '. $this->savepath . '<br>WS_CAT    '. DIR_WS_HTTP_CATALOG.' <br>';
				if ($fp = fopen($filename, 'w+')){
				     echo 'Write '.$filename.'<br>';
					fwrite($fp, $data);
					fclose($fp);
					$this->debug['SAVE_FILE_XML'][] = array('file' => $filename, 'status' => 'success', 'file_exists' => 'true');
					return true;
				} else {
					$file_check = file_exists($filename) ? 'true' : 'false';
					$this->debug['SAVE_FILE_XML'][] = array('file' => $filename, 'status' => 'failure', 'file_exists' => $file_check);
					return false;
				}
				break;
		} # end switch 
	} # end function
	
/**
 * Function to compress a normal file
 * @author Bobby Easland 
 * @version 1.0
 * @param string $file
 * @return boolean
 */	
	function CompressFile($file){
		$source = $this->savepath . $file . '.xml';
		$filename = $this->savepath . $file . '.xml.gz';
		$error_encountered = false;
		if( $gz_out = gzopen($filename, 'wb9') ){
			if($fp_in = fopen($source,'rb')){
				while(!feof($fp_in)) gzwrite($gz_out, fread($fp_in, 1024*512));
					fclose($fp_in);
				 
			} else {
				$error_encountered = true;
			}
			gzclose($gz_out);
		} else {
			$error_encountered = true;
		}
		if($error_encountered){
			return false;
		} else {
			return true;    
		}
	} # end function

/**
 * Function to generate sitemap file from data
 * @author Bobby Easland 
 * @version 1.0
 * @param array $data
 * @param string $file
 * @return boolean
 */	
	function GenerateSitemap($data, $file){
		$content = '<?xml version="1.0" encoding="UTF-8"?>' . "\n";
		$content .= '<?xml-stylesheet type="text/xsl" href="gss.xsl"?>' . "\n";
		$content .= '<urlset xmlns="http://www.google.com/schemas/sitemap/0.84">' . "\n";
		foreach ($data as $url){
			$content .= "\t" . '<url>' . "\n";
			$content .= "\t\t" . '<loc>'.$url['loc'].'</loc>' . "\n";
			$content .= "\t\t" . '<lastmod>'.$url['lastmod'].'</lastmod>' . "\n";
			$content .= "\t\t" . '<changefreq>'.$url['changefreq'].'</changefreq>' . "\n";
			$content .= "\t\t" . '<priority>'.$url['priority'].'</priority>' . "\n";
			$content .= "\t" . '</url>' . "\n";
		} # end foreach
		$content .= '</urlset>';
		return $this->SaveFile($content, $file);
	} # end function
	
/**
 * Function to generate sitemap index file 
 * @author Bobby Easland 
 * @version 1.1
 * @return boolean
 */	
	function GenerateSitemapIndex(){
		$content = '<?xml version="1.0" encoding="UTF-8"?>' . "\n";
		$content = '<?xml-stylesheet type="text/xsl" href="gss.xsl"?>' . "\n"; //human readable
		$content .= '<sitemapindex xmlns="http://www.google.com/schemas/sitemap/0.84">' . "\n";		
		$pattern = defined('GOOGLE_SITEMAP_COMPRESS')
				     ?	GOOGLE_SITEMAP_COMPRESS == 'true'
					 		?	"{sitemap*.xml.gz}"
							: 	"{sitemap*.xml}"
					 :	"{sitemap*.xml}";
		foreach ( glob($this->savepath . $pattern, GLOB_BRACE) as $filename ) {
		   if ( preg_match('/index/i', $filename) ) continue;
		   if ( preg_match('/manufacturers/i', $filename) && GOOGLE_XML_SITEMAP_CREATE_MANU != 'true' ) continue;
		   if ( preg_match('/pages/i', $filename) && GOOGLE_XML_SITEMAP_CREATE_PAGES != 'true' ) continue;
		   if ( preg_match('/specials/i', $filename) && GOOGLE_XML_SITEMAP_CREATE_SPECIALS != 'true' ) continue;
		   $content .= "\t" . '<sitemap>' . "\n";
		   $content .= "\t\t" . '<loc>'.$this->base_url . basename($filename).'</loc>' . "\n";
		   $content .= "\t\t" . '<lastmod>'.date ("Y-m-d", filemtime($filename)).'</lastmod>' . "\n";
		   $content .= "\t" . '</sitemap>' . "\n";		   		
		} # end foreach
		$content .= '</sitemapindex>';
		return $this->SaveFile($content, 'index');
	} # end function
	
/**
 * Function to generate product sitemap data
 * @author Bobby Easland 
 * @version 1.1
 * @return boolean
 */	
	function GenerateProductSitemap(){
        $quotes = (defined('QUOTES_CATEGORY_NAME') ? " and customers_email_address = '' and quotes_email_address = ''" : '');
		$sql = "SELECT products_id as pID, products_date_added as date_added, products_last_modified as last_mod, products_ordered 
			    FROM " . TABLE_PRODUCTS . " 
				WHERE products_status='1'" . $quotes . "
				ORDER BY products_ordered DESC";
		if ( $products_query = $this->DB->Query($sql) ){
			$this->debug['QUERY']['PRODUCTS']['STATUS'] = 'success';
			$this->debug['QUERY']['PRODUCTS']['NUM_ROWS'] = $this->DB->NumRows($products_query);
			$container = array();
			$number = 0;
			$top = 0;
			while( $result = $this->DB->FetchArray($products_query) ){
				$top = max($top, $result['products_ordered']);
				$location = $this->hrefLink(FILENAME_PRODUCT_INFO, 'products_id=' . $result['pID'], 'NONSSL', false);
				$lastmod = $this->NotNull($result['last_mod']) ? $result['last_mod'] : $result['date_added'];
				$changefreq = GOOGLE_SITEMAP_PROD_CHANGE_FREQ;
				$ratio = $top > 0 ? $result['products_ordered']/$top : 0;
				$priority = $ratio < .1 ? .1 : number_format($ratio, 1, '.', ''); 
				
				$container[] = array('loc' => htmlspecialchars(utf8_encode($location)),
				                     'lastmod' => date ("Y-m-d", strtotime($lastmod)),
									 'changefreq' => $changefreq,
									 'priority' => $priority
				                     );
				if ( sizeof($container) >= 50000 ){
					$type = $number == 0 ? 'products' : 'products' . $number;
					$this->GenerateSitemap($container, $type);
					$container = array();
					$number++;
				}
			} # end while
			$this->DB->Free($products_query);			
			if ( sizeof($container) > 0 ) {
				$type = $number == 0 ? 'products' : 'products' . $number;
				return $this->GenerateSitemap($container, $type);
			} # end if			
		} else {
			$this->debug['QUERY']['PRODUCTS']['STATUS'] = 'false';
			$this->debug['QUERY']['PRODUCTS']['NUM_ROWS'] = '0';
		}
	} # end function
	
/**
 * Funciton to generate category sitemap data
 * @author Bobby Easland 
 * @version 1.1
 * @return boolean
 */	
	function GenerateCategorySitemap(){
        $quotes = (defined('QUOTES_CATEGORY_NAME') ? " where cd.categories_name NOT LIKE '" . QUOTES_CATEGORY_NAME . "' " : '');
		$sql = "SELECT c.categories_id as cID, c.date_added, c.last_modified as last_mod 
			    FROM " . TABLE_CATEGORIES . " c left join " . TABLE_CATEGORIES_DESCRIPTION . " cd on c.categories_id = cd.categories_id  
          " . $quotes . "
				ORDER BY c.parent_id ASC, c.sort_order ASC, c.categories_id ASC";
         
		if ( $categories_query = $this->DB->Query($sql) ){
			$this->debug['QUERY']['CATEOGRY']['STATUS'] = 'success';
			$this->debug['QUERY']['CATEOGRY']['NUM_ROWS'] = $this->DB->NumRows($categories_query);
			$container = array();
			$number = 0;
			while( $result = $this->DB->FetchArray($categories_query) ){
				$location = $this->hrefLink(FILENAME_DEFAULT, 'cPath=' . $this->GetFullcPath($result['cID']), 'NONSSL', false);
				$lastmod = $this->NotNull($result['last_mod']) ? $result['last_mod'] : $result['date_added'];
				$changefreq = GOOGLE_SITEMAP_CAT_CHANGE_FREQ;
				$priority = .5; 
				
				$container[] = array('loc' => htmlspecialchars(utf8_encode($location)),
				                     'lastmod' => date ("Y-m-d", strtotime($lastmod)),
									 'changefreq' => $changefreq,
									 'priority' => $priority
				                     );
				if ( sizeof($container) >= 50000 ){
					$type = $number == 0 ? 'categories' : 'categories' . $number;
					$this->GenerateSitemap($container, $type);
					$container = array();
					$number++;
				}
			} # end while
			$this->DB->Free($categories_query);			
			if ( sizeof($container) > 0 ) {
				$type = $number == 0 ? 'categories' : 'categories' . $number;
				return $this->GenerateSitemap($container, $type);
			} # end if			
		} else {
			$this->debug['QUERY']['CATEOGRY']['STATUS'] = 'false';
			$this->debug['QUERY']['CATEOGRY']['NUM_ROWS'] = '0';
		}
	} # end function
	
/**
 * Funciton to generate manufacturer sitemap data
 * @author Jack_mcs from Bobbys code
 * @version 1.1
 * @return boolean
 */
	function GenerateManufacturerSitemap(){
        $sql = "SELECT manufacturers_id as mID, date_added, last_modified as last_mod, manufacturers_name
                FROM " . TABLE_MANUFACTURERS . " order by manufacturers_name DESC";

		if ( $manufacturers_query = $this->DB->Query($sql) ){
			$this->debug['QUERY']['MANUFACTURERS']['STATUS'] = 'success';
			$this->debug['QUERY']['MANUFACTURERS']['NUM_ROWS'] = $this->DB->NumRows($manufacturers_query);
			$container = array();
			$number = 0;
			while( $result = $this->DB->FetchArray($manufacturers_query) ){
				$location = $this->hrefLink(FILENAME_DEFAULT, 'manufacturers_id=' . $result['mID'], 'NONSSL', false);
				$lastmod = $this->NotNull($result['last_mod']) ? $result['last_mod'] : $result['date_added'];
				$changefreq = GOOGLE_SITEMAP_MAN_CHANGE_FREQ;
				$priority = .5;

				$container[] = array('loc' => htmlspecialchars(utf8_encode($location)),
				                     'lastmod' => date ("Y-m-d", strtotime($lastmod)),
									 'changefreq' => $changefreq,
									 'priority' => $priority
				                     );
				if ( sizeof($container) >= 50000 ){
					$type = $number == 0 ? 'manufacturers' : 'manufacturers' . $number;
					$this->GenerateSitemap($container, $type);
					$container = array();
					$number++;
				}
			} # end while
			$this->DB->Free($manufacturers_query);
			if ( sizeof($container) > 0 ) {
				$type = $number == 0 ? 'manufacturers' : 'manufacturers' . $number;
				return $this->GenerateSitemap($container, $type);
			} # end if			
		} else {
			$this->debug['QUERY']['MANUFACTURERS']['STATUS'] = 'false';
			$this->debug['QUERY']['MANUFACTURERS']['NUM_ROWS'] = '0';
		}
	} # end function

/**
 * Funciton to generate manufacturer sitemap data
 * @author Jack_mcs from Bobbys code
 * @version 1.1
 * @return boolean
 */
	function GenerateSpecialsSitemap($languages_id){
        $sql = "SELECT p.products_id as pID, s.specials_date_added as date_added, s.specials_last_modified as last_mod, p.products_ordered
                FROM " . TABLE_PRODUCTS . " p left join " . TABLE_PRODUCTS_DESCRIPTION . " pd on p.products_id = pd.products_id left join " . TABLE_SPECIALS . " s on pd.products_id = s.products_id
            where p.products_status = '1' and s.status = '1' and pd.language_id = " . (int)$languages_id . " order by s.specials_date_added desc ";             
		if ( $products_query = $this->DB->Query($sql) ){
			$this->debug['QUERY']['SPECIALS']['STATUS'] = 'success';
			$this->debug['QUERY']['SPECIALS']['NUM_ROWS'] = $this->DB->NumRows($products_query);
			$container = array();
			$number = 0;
			$top = 0;
			while( $result = $this->DB->FetchArray($products_query) ){
				$top = max($top, $result['products_ordered']);
				$location = $this->hrefLink(FILENAME_PRODUCT_INFO, 'products_id=' . $result['pID'], 'NONSSL', false);
				$lastmod = $this->NotNull($result['last_mod']) ? $result['last_mod'] : $result['date_added'];
				$changefreq = GOOGLE_SITEMAP_SPECIALS_CHANGE_FREQ;
				$ratio = $top > 0 ? $result['products_ordered']/$top : 0;
				$priority = $ratio < .1 ? .1 : number_format($ratio, 1, '.', ''); 
				
				$container[] = array('loc' => htmlspecialchars(utf8_encode($location)),
				                     'lastmod' => date ("Y-m-d", strtotime($lastmod)),
									 'changefreq' => $changefreq,
									 'priority' => $priority
				                     );
				if ( sizeof($container) >= 50000 ){
					$type = $number == 0 ? 'specials' : 'specials' . $number;
					$this->GenerateSitemap($container, $type);
					$container = array();
					$number++;
				}
			} # end while
			$this->DB->Free($products_query);			
			if ( sizeof($container) > 0 ) {
				$type = $number == 0 ? 'specials' : 'specials' . $number;
				return $this->GenerateSitemap($container, $type);
			} # end if			
		} else {
			$this->debug['QUERY']['SPECIALS']['STATUS'] = 'false';
			$this->debug['QUERY']['SPECIALS']['NUM_ROWS'] = '0';
		}
	} # end function

  
/**
 * Function to generate sitemap pages file 
 * @author Jack_mcs
 * @version 1.1
 * @return boolean
 */	
	function GeneratePagesSitemap(){
		$container = array();
		$changefreq = GOOGLE_SITEMAP_PAGES_CHANGE_FREQ;
		$priority = '.1';

  	include_once(DIR_WS_CLASSES . 'language.php');
  	$lng = new language();
   
    $slash = substr(DIR_FS_CATALOG, 0 -1) == '/' ? 1 : 0;
    $path = (($pos = strpos(DIR_FS_CATALOG, "googlesitemap")) !== FALSE) ? substr(DIR_FS_CATALOG, 0, -strlen('googlesitemap') - $slash) : DIR_FS_CATALOG;
    $pages = $this->GetPagesArray($path, DIR_WS_LANGUAGES . $lng->language['directory'], $lng->language['id']);
 
    for ($i = 0; $i < count($pages); ++$i)
    {
   	  $container[] = array('loc' => htmlspecialchars(utf8_encode($pages[$i]['filename'])),
 	                         'lastmod' => $pages[$i]['lastmod'],
  		     			         'changefreq' => $changefreq,
 				  		            'priority' => $priority
 	                        );	             
    }
 
    if ($i > 0)
 		  return $this->GenerateSitemap($container, 'pages');
	} # end function  

/**
 * Function to retrieve full cPath from category ID 
 * @author Bobby Easland 
 * @version 1.0
 * @param mixed $cID Could contain cPath or single category_id
 * @return string Full cPath string
 */	
	function GetFullcPath($cID){
		if ( preg_match('/_/', $cID) ){
			return $cID;
		} else {
			$c = array();
			$this->GetParentCategories($c, $cID);
			$c = array_reverse($c);
			$c[] = $cID;
			$cID = sizeof($c) > 1 ? implode('_', $c) : $cID;
			return $cID;
		}
	} # end function

/**
 * Recursion function to retrieve parent categories from category ID 
 * @author Bobby Easland 
 * @version 1.0
 * @param mixed $categories Passed by reference
 * @param integer $categories_id
 */	
	function GetParentCategories(&$categories, $categories_id) {
		$sql = "SELECT parent_id 
		        FROM " . TABLE_CATEGORIES . " 
				WHERE categories_id='" . (int)$categories_id . "'";
		$parent_categories_query = $this->DB->Query($sql);
		while ($parent_categories = $this->DB->FetchArray($parent_categories_query)) {
			if ($parent_categories['parent_id'] == 0) return true;
			$categories[sizeof($categories)] = $parent_categories['parent_id'];
			if ($parent_categories['parent_id'] != $categories_id) {
				$this->GetParentCategories($categories, $parent_categories['parent_id']);
			}
		}
	} # end function

/**
 * Function to check if a value is NULL 
 * @author Bobby Easland as abstracted from osCommerce-MS2.2 
 * @version 1.0
 * @param mixed $value
 * @return boolean
 */	
	function NotNull($value) {
		if (is_array($value)) {
			if (sizeof($value) > 0) {
				return true;
			} else {
				return false;
			}
		} else {
			if (($value != '') && (strtolower($value) != 'null') && (strlen(trim($value)) > 0)) {
				return true;
			} else {
				return false;
			}
		}
	} # end function

/**
 * Function to return href_link 
 * @author Bobby Easland 
 * @version 1.0
 * @param mixed $value
 * @return boolean
 */	
	function hrefLink($page, $parameters, $connection, $add_session_id) {
		if ( defined('SEO_URLS') && SEO_URLS == 'true' || defined('SEO_ENABLED') && SEO_ENABLED == 'true' ) {
			return tep_href_link($page, $parameters, $connection, $add_session_id);
		} else {
			return $this->base_url . $page . '?' . $parameters;
		}
	} # end function

/**
 * Utility function to read and return the contents of a GZ formatted file
 * @author Bobby Easland 
 * @version 1.0
 * @param string $file File to open
 * @return string
 */	
	function ReadGZ( $file ){
		$file = $this->savepath . $file;
		$lines = gzfile($file);
		return implode('', $lines);
	} # end function
	
/**
 * Utility function to generate the submit URL 
 * @author Bobby Easland 
 * @version 1.0
 * @return string
 */	
	function GenerateSubmitURL(){
		$url = urlencode($this->base_url . 'sitemapindex.xml');
		return htmlspecialchars(utf8_encode('http://www.google.com/webmasters/sitemaps/ping?sitemap=' . $url));
	} # end function
  
  function GetPagesArray($locn, $languagesDir, $languageID)
  {
    $cwd = getcwd(); 
    $pagesArray = array();
    
    $end =  (substr($locn, strlen($locn) - 1) !== '/') ? '/' : '';
    $root = $locn . $end;
    $path = $root . $languagesDir;
    $end =  (substr($path, strlen($path) - 1) !== '/') ? '/' : '';
    $path = $path . $end;

    chdir ($path);

    foreach (glob("*.php") as $filename)  
    {
      if (! in_array($filename, $this->excludeList) && $this->IsViewable($root . $filename))
      {
        $r = @stat($filename);
        $displayName = ucwords(str_replace("_", " ", substr($filename, 0, strpos($filename, ".")))); //remove the .php and underscores
        $pagesArray[] = array('filename' => $this->base_url . $filename,
                              'lastmod' => gmstrftime ("%Y-%m-%d", $r[9]));
                    
        /*** ADD ARTICLES ***/            
        if ($filename === 'articles.php')
        {
          $sql = "SELECT a.articles_id, DATE_FORMAT(a.articles_last_modified,'%Y-%m-%d') AS lastmod, DATE_FORMAT(a.articles_date_added,'%Y-%m-%d') AS date_added from " . TABLE_ARTICLES . " a left join " . TABLE_ARTICLES_DESCRIPTION . " ad on a.articles_id = ad.articles_id where a.articles_status = '1' and ad.language_id = '" . (int)$languageID . "'";
		  if ( $articles_query = $this->DB->Query($sql) )
          {
   		    while( $result = $this->DB->FetchArray($articles_query) )
            {
              $page = 'article_info.php' . '?articles_id=' . $result['articles_id'];
              if (! in_array($page, $this->excludeList)) {
              $pagesArray[] = array('filename' => $this->hrefLink('article_info.php', 'articles_id=' . $result['articles_id'], 'NONSSL', false),
                                    'lastmod' => $this->NotNull($result['lastmod']) ? $result['lastmod'] : $result['date_added']);
            }
          }
          }
          $sql = "SELECT t.topics_id, DATE_FORMAT(t.last_modified,'%Y-%m-%d') AS lastmod, DATE_FORMAT(t.date_added,'%Y-%m-%d') AS date_added from " . TABLE_TOPICS . " t left join " . TABLE_TOPICS_DESCRIPTION . " td on t.topics_id = td.topics_id where td.language_id = '" . (int)$languageID . "'";
		  if ( $articles_query = $this->DB->Query($sql) )
          {
   		    while( $result = $this->DB->FetchArray($articles_query) )
            {
              $page = 'articles.php' . '?tPath=' . $result['topics_id'];
              if (! in_array($page, $this->excludeList)) {
              $pagesArray[] = array('filename' => $this->hrefLink('articles.php', 'tPath=' . $result['topics_id'], 'NONSSL', false),
                                    'lastmod' => $this->NotNull($result['lastmod']) ? $result['lastmod'] : $result['date_added']);
            }
          }
        }                 
        }                 
          
        /*** ADD INFORMATION PAGES ***/            
        else if ($filename === 'information.php')
        {
          $sql = "SELECT information_id from " . TABLE_INFORMATION . " where visible = '1' and language_id = '" . (int)$languageID . "'";
		      if ( $information_query = $this->DB->Query($sql) )
          {
 			     while( $result = $this->DB->FetchArray($information_query) )
            {
              $page = 'information.php' . '?info_id=' . $result['information_id'];
              if (! in_array($page, $this->excludeList)) {
              $pagesArray[] = array('filename' => $this->hrefLink('information.php', 'info_id=' . $result['information_id'], 'NONSSL', false),
                                    'lastmod' => gmstrftime ("%Y-%m-%d", $r[9]));
            }
          }          
        } 
      } 
    }    
    }    

    /*** ADD PAGE MANAGER ***/ 
    //special case since it doesn't have a language file            
    if (file_exists($root.'pages.php') &&  $this->IsViewable($root.'pages.php')) 
    {
       $r = @stat('pages.php');
       $pagesArray[] = array('filename' => $this->base_url . 'pages.php',
                              'lastmod' => gmstrftime ("%Y-%m-%d", $r[9]));
       $sql = "SELECT p.pages_id, p.pages_name from " . TABLE_PAGES . " p left join " . TABLE_PAGES_DESCRIPTION . " pd on p.pages_id = pd.pages_id where p.pages_status = '1' and pd.language_id = '" . (int)$languageID . "'";
       if ( $pages_query = $this->DB->Query($sql) )
       {
  	      while( $result = $this->DB->FetchArray($pages_query) )
          {
              $page = 'pages.php' . '?page=' . $result['pages_name'];
              if (! in_array($page, $this->excludeList)) {
            $pagesArray[] = array('filename' => $this->hrefLink('pages.php', 'page=' . $result['pages_name'], 'NONSSL', false),
                                  'lastmod' => gmstrftime ("%Y-%m-%d", $r[9]));
          }
      } 
    }    
    }
  
    chdir ($cwd);
    return $pagesArray;
  }  
  
  function IsViewable($file)
  {
    if (($fp = @file($file)))
    {
      for ($idx = 0; $idx < count($fp); ++$idx)
      {
         if (strpos($fp[$idx], "<head>") !== FALSE)
           return true;
      }
    }  
    return false;
  }  
  
} #  end class
?>