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/**
* A class for generating XML sitemaps
*
* @version 0.7
* @access public
* @package sitemaps
*/
class Sitemaps
{
var $items = array();
function Sitemaps()
{
$CI =& get_instance();
$CI->config->load('sitemaps');
}
/**
* Adds a new item to the urlset
*
* @param array $new_item
* @access public
*/
function add_item($new_item)
{
$this->items[] = $new_item;
}
/**
* Adds an array of items to the urlset
*
* @param array $new_items array of items
* @access public
*/
function add_item_array($new_items)
{
$this->items = array_merge($this->items, $new_items);
}
/**
* Generates the sitemap XML data
*
* @param string $file_name (optional) if file name is supplied the XML data is saved in it otherwise returned as a string
* @param bool $gzip (optional) compress sitemap, overwrites config item 'sitemaps_gzip'
* @access public
* @return string
*/
function build($file_name = null, $gzip = NULL)
{
$CI =& get_instance();
$map = $CI->config->item('sitemaps_header') . "\n";
foreach($this->items as $item)
{
$item['loc'] = htmlentities($item['loc'], ENT_QUOTES);
$map .= "\t\n\t\t" . $item['loc'] . "\n";
$attributes = array("lastmod", "changefreq", "priority");
foreach($attributes AS $attr)
{
if(isset($item[$attr]))
{
$map .= "\t\t<$attr>" . $item[$attr] . "\n";
}
}
$map .= "\t\n\n";
}
unset($this->items);
$map .= $CI->config->item('sitemaps_footer');
if( ! is_null($file_name))
{
$fh = fopen($file_name, 'a');//w
fwrite($fh, $map);
fclose($fh);
if($CI->config->item('sitemaps_filesize_error') && filesize($file_name) > 1024 * 1024 * 30)
{
show_error('Your sitemap is bigger than 10MB, most search engines will not accept it.');
}
if($gzip OR (is_null($gzip) && $CI->config->item('sitemaps_gzip')))
{
$gzdata = gzencode($map, 9);
$file_gzip = str_replace("{file_name}", $file_name, $CI->config->item('sitemaps_gzip_path'));
$fp = fopen($file_gzip, "a");//w
fwrite($fp, $gzdata);
fclose($fp);
// Delete the uncompressed sitemap
unlink($file_name);
return $file_gzip;
}
return $file_name;
}
else
{
return $map;
}
}
/**
* Generate a sitemap index file pointing to other sitemaps you previously built
*
* @param array $urls array of urls, each being an array with at least a loc index
* @param string $file_name (optional) if file name is supplied the XML data is saved in it otherwise returned as a string
* @param bool $gzip (optional) compress sitemap, overwrites config item 'sitemaps_gzip'
* @access public
* @return string
*/
function build_index($urls, $file_name = null, $gzip = null)
{
$CI =& get_instance();
$index = $CI->config->item('sitemaps_index_header') . "\n";
foreach($urls as $url)
{
$url['loc'] = htmlentities($url['loc'], ENT_QUOTES);
$index .= "\t\n\t\t" . $url['loc'] . "\n";
if(isset($url['lastmod']))
{
$index .= "\t\t" . $url['lastmod'] . "\n";
}
$index .= "\t\n\n";
}
$index .= $CI->config->item('sitemaps_index_footer');
if( ! is_null($file_name))
{
$fh = fopen($file_name, 'w');
fwrite($fh, $index);
fclose($fh);
if($CI->config->item('sitemaps_filesize_error') && filesize($file_name) > 1024 * 1024 * 10)
{
show_error('Your sitemap index is bigger than 10MB, most search engines will not accept it.');
}
if($gzip OR (is_null($gzip) && $CI->config->item('sitemaps_index_gzip')))
{
$gzdata = gzencode($index, 9);
$file_gzip = str_replace("{file_name}", $file_name, $CI->config->item('sitemaps_index_gzip_path'));
$fp = fopen($file_gzip, "w");
fwrite($fp, $gzdata);
fclose($fp);
// Delete the uncompressed sitemap index
unlink($file_name);
return $file_gzip;
}
return $file_name;
}
else
{
return $index;
}
}
/**
* Notify search engines of your updates sitemap
*
* @param string $url_xml absolute URL of your sitemap, use Codeigniter's site_url()
* @param array $search_engines array of search engines to ping, see config file for notes
* @access public
* @return array HTTP reponse codes
*/
function ping($url_xml, $search_engines = NULL)
{
$CI =& get_instance();
if(is_null($search_engines))
{
$search_engines = $CI->config->item('sitemaps_search_engines');
}
$statuses = array();
foreach($search_engines AS $engine)
{
$status = 0;
if($fp = @fsockopen($engine['host'], 80))
{
$engine['url'] = emptyempty($engine['url']) ? "/ping?sitemap=" : $engine['url'];
$req = 'GET ' . $engine['url'] .
urlencode($url_xml) . " HTTP/1.1\r\n" .
"Host: " . $engine['host'] . "\r\n" .
$CI->config->item('sitemaps_user_agent') .
"Connection: Close\r\n\r\n";
fwrite($fp, $req);
while( ! feof($fp))
{
if(@preg_match('~^HTTP/\d\.\d (\d+)~i', fgets($fp, 128), $m))
{
$status = intval($m[1]);
break;
}
}
fclose($fp);
}
$statuses[] = array("host" => $engine['host'], "status" => $status, "request" => $req);
}
if($CI->config->item('sitemaps_log_http_responses') OR $CI->config->item('sitemaps_debug'))
{
foreach($statuses AS $reponse)
{
$message = "Sitemaps: " . $reponse['host'] . " responded with HTTP status " . $reponse['status'];
if($CI->config->item('sitemaps_log_http_responses'))
{
$level = $reponse['status'] == 200 ? 'debug' : 'error';
log_message($level, $message);
}
if($CI->config->item('sitemaps_debug'))
{
echo "
" . $message . " after request:
\n
" . $reponse['request'] . "
\n\n";
}
}
}
return $statuses;
}
}
/**
* A class for generating XML sitemaps
*
* @version 0.7
* @access public
* @package sitemaps
*/
class Sitemaps
{
var $items = array();
function Sitemaps()
{
$CI =& get_instance();
$CI->config->load('sitemaps');
}
/**
* Adds a new item to the urlset
*
* @param array $new_item
* @access public
*/
function add_item($new_item)
{
$this->items[] = $new_item;
}
/**
* Adds an array of items to the urlset
*
* @param array $new_items array of items
* @access public
*/
function add_item_array($new_items)
{
$this->items = array_merge($this->items, $new_items);
}
/**
* Generates the sitemap XML data
*
* @param string $file_name (optional) if file name is supplied the XML data is saved in it otherwise returned as a string
* @param bool $gzip (optional) compress sitemap, overwrites config item 'sitemaps_gzip'
* @access public
* @return string
*/
function build($file_name = null, $gzip = NULL)
{
$CI =& get_instance();
$map = $CI->config->item('sitemaps_header') . "\n";
foreach($this->items as $item)
{
$item['loc'] = htmlentities($item['loc'], ENT_QUOTES);
$map .= "\t\n\t\t" . $item['loc'] . "\n";
$attributes = array("lastmod", "changefreq", "priority");
foreach($attributes AS $attr)
{
if(isset($item[$attr]))
{
$map .= "\t\t<$attr>" . $item[$attr] . "\n";
}
}
$map .= "\t\n\n";
}
unset($this->items);
$map .= $CI->config->item('sitemaps_footer');
if( ! is_null($file_name))
{
$fh = fopen($file_name, 'a');//w
fwrite($fh, $map);
fclose($fh);
if($CI->config->item('sitemaps_filesize_error') && filesize($file_name) > 1024 * 1024 * 30)
{
show_error('Your sitemap is bigger than 10MB, most search engines will not accept it.');
}
if($gzip OR (is_null($gzip) && $CI->config->item('sitemaps_gzip')))
{
$gzdata = gzencode($map, 9);
$file_gzip = str_replace("{file_name}", $file_name, $CI->config->item('sitemaps_gzip_path'));
$fp = fopen($file_gzip, "a");//w
fwrite($fp, $gzdata);
fclose($fp);
// Delete the uncompressed sitemap
unlink($file_name);
return $file_gzip;
}
return $file_name;
}
else
{
return $map;
}
}
/**
* Generate a sitemap index file pointing to other sitemaps you previously built
*
* @param array $urls array of urls, each being an array with at least a loc index
* @param string $file_name (optional) if file name is supplied the XML data is saved in it otherwise returned as a string
* @param bool $gzip (optional) compress sitemap, overwrites config item 'sitemaps_gzip'
* @access public
* @return string
*/
function build_index($urls, $file_name = null, $gzip = null)
{
$CI =& get_instance();
$index = $CI->config->item('sitemaps_index_header') . "\n";
foreach($urls as $url)
{
$url['loc'] = htmlentities($url['loc'], ENT_QUOTES);
$index .= "\t\n\t\t" . $url['loc'] . "\n";
if(isset($url['lastmod']))
{
$index .= "\t\t" . $url['lastmod'] . "\n";
}
$index .= "\t\n\n";
}
$index .= $CI->config->item('sitemaps_index_footer');
if( ! is_null($file_name))
{
$fh = fopen($file_name, 'w');
fwrite($fh, $index);
fclose($fh);
if($CI->config->item('sitemaps_filesize_error') && filesize($file_name) > 1024 * 1024 * 10)
{
show_error('Your sitemap index is bigger than 10MB, most search engines will not accept it.');
}
if($gzip OR (is_null($gzip) && $CI->config->item('sitemaps_index_gzip')))
{
$gzdata = gzencode($index, 9);
$file_gzip = str_replace("{file_name}", $file_name, $CI->config->item('sitemaps_index_gzip_path'));
$fp = fopen($file_gzip, "w");
fwrite($fp, $gzdata);
fclose($fp);
// Delete the uncompressed sitemap index
unlink($file_name);
return $file_gzip;
}
return $file_name;
}
else
{
return $index;
}
}
/**
* Notify search engines of your updates sitemap
*
* @param string $url_xml absolute URL of your sitemap, use Codeigniter's site_url()
* @param array $search_engines array of search engines to ping, see config file for notes
* @access public
* @return array HTTP reponse codes
*/
function ping($url_xml, $search_engines = NULL)
{
$CI =& get_instance();
if(is_null($search_engines))
{
$search_engines = $CI->config->item('sitemaps_search_engines');
}
$statuses = array();
foreach($search_engines AS $engine)
{
$status = 0;
if($fp = @fsockopen($engine['host'], 80))
{
$engine['url'] = empty($engine['url']) ? "/ping?sitemap=" : $engine['url'];
$req = 'GET ' . $engine['url'] .
urlencode($url_xml) . " HTTP/1.1\r\n" .
"Host: " . $engine['host'] . "\r\n" .
$CI->config->item('sitemaps_user_agent') .
"Connection: Close\r\n\r\n";
fwrite($fp, $req);
while( ! feof($fp))
{
if(@preg_match
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