1) {
return 'index';
}
else {
return 1;
}
}
else {
return (int) $_GET['page'];
}
}
/**
* Output a sitemap page.
*
* @see xmlsitemap_sitemap_load_by_context()
* @see xmlsitemap_get_current_chunk()
* @see xmlsitemap_sitemap_get_file()
* @see xmlsitemap_output_file()
*/
function xmlsitemap_output_chunk() {
$sitemap = xmlsitemap_sitemap_load_by_context();
if (!$sitemap) {
return MENU_NOT_FOUND;
}
$chunk = xmlsitemap_get_current_chunk($sitemap);
$file = xmlsitemap_sitemap_get_file($sitemap, $chunk);
// Provide debugging information if enabled.
if (variable_get('xmlsitemap_developer_mode', 0) && isset($_GET['debug'])) {
$output = array();
$context = xmlsitemap_get_current_context();
$output[] = "Current context: " . print_r($context, TRUE);
$output[] = "Sitemap: " . print_r($sitemap, TRUE);
$output[] = "Chunk: $chunk";
$output[] = "Cache file location: $file";
$output[] = "Cache file exists: " . (file_exists($file) ? 'Yes' : 'No');
return implode('
', $output);
}
return xmlsitemap_output_file($file);
}
/**
* Output the contents of a file to the browser and check caching headers.
*/
function xmlsitemap_output_file($file, array $headers = array()) {
if (!file_exists($file) || !is_readable($file)) {
return MENU_NOT_FOUND;
}
$mtime = filemtime($file);
$last_modified = gmdate(DATE_RFC1123, $mtime);
$etag = '"' . md5($last_modified) . '"';
// See if the client has provided the required HTTP headers.
$if_modified_since = isset($_SERVER['HTTP_IF_MODIFIED_SINCE']) ? stripslashes($_SERVER['HTTP_IF_MODIFIED_SINCE']) : FALSE;
$if_none_match = isset($_SERVER['HTTP_IF_NONE_MATCH']) ? stripslashes($_SERVER['HTTP_IF_NONE_MATCH']) : FALSE;
if ($if_modified_since && $if_none_match && $if_none_match == $etag && $if_modified_since == $last_modified) {
header('HTTP/1.1 304 Not Modified');
// All 304 responses must send an etag if the 200 response for the same object contained an etag
header('Etag: ' . $etag);
exit;
}
$headers += array(
'Content-type' => 'text/xml; charset=utf-8',
//'Content-length' => filesize($file),
'Last-modified' => $last_modified,
'Etag' => $etag,
'Expires' => gmdate(DATE_RFC1123, $mtime + variable_get('xmlsitemap_minimum_lifetime', 0)),
'Cache-Control' => 'must-revalidate',
'X-Robots-Tag' => 'noindex, follow',
);
// Transfer the file as output.
xmlsitemap_file_transfer($file, $headers);
}
/**
* Modified version of file_transfer() that invokes hook_exit()s afterwards.
*
* @see file_transfer()
*/
function xmlsitemap_file_transfer($uri, $headers) {
if (ob_get_level()) {
ob_end_clean();
}
foreach ($headers as $name => $value) {
drupal_add_http_header($name, $value);
}
drupal_send_headers();
$scheme = $scheme = variable_get('file_default_scheme', 'public');
// Transfer file in 16 KB chunks to save memory usage.
if ($scheme && file_stream_wrapper_valid_scheme($scheme) && $fd = fopen($uri, 'rb')) {
while (!feof($fd)) {
print fread($fd, 1024*16);
}
fclose($fd);
}
else {
drupal_not_found();
}
drupal_exit();
}
/**
* Output an XML transformation file for the sitemap XML.
*/
function xmlsitemap_output_xsl() {
// Read the XSL content from the file.
$module_path = drupal_get_path('module', 'xmlsitemap');
$xsl_content = file_get_contents($module_path . '/xsl/xmlsitemap.xsl');
// Make sure the strings in the XSL content are translated properly.
$replacements = array(
'Sitemap file' => t('Sitemap file'),
'Generated by the Drupal XML sitemap module.' => t('Generated by the Drupal XML sitemap module.', array('@link-xmlsitemap' => 'http://drupal.org/project/xmlsitemap')),
'Number of sitemaps in this index' => t('Number of sitemaps in this index'),
'Click on the table headers to change sorting.' => t('Click on the table headers to change sorting.'),
'Sitemap URL' => t('Sitemap URL'),
'Last modification date' => t('Last modification date'),
'Number of URLs in this sitemap' => t('Number of URLs in this sitemap'),
'URL location' => t('URL location'),
'Change frequency' => t('Change frequency'),
'Priority' => t('Priority'),
'[jquery]' => base_path() . 'misc/jquery.js',
'[jquery-tablesort]' => base_path() . $module_path . '/xsl/jquery.tablesorter.min.js',
'[xsl-js]' => base_path() . $module_path . '/xsl/xmlsitemap.xsl.js',
'[xsl-css]' => base_path() . $module_path . '/xsl/xmlsitemap.xsl.css',
);
$xsl_content = strtr($xsl_content, $replacements);
// Output the XSL content.
drupal_add_http_header('Content-type', 'application/xml; charset=utf-8');
drupal_add_http_header('X-Robots-Tag', 'noindex, follow');
print $xsl_content;
}