/** Diable here because PHP4.3 does not make the global
Serious bug?
$mutex_filename = 'wp_cache_mutex.lock';
$new_cache = false;
*/
function wp_cache_phase2()
{
global $cache_filename, $cache_acceptable_files;
wp_cache_mutex_init();
if (function_exists('add_action')) {
// Post ID is received
add_action('publish_post', 'wp_cache_post_change', 0);
add_action('edit_post', 'wp_cache_post_change', 0);
add_action('delete_post', 'wp_cache_post_change', 0);
add_action('publish_phone', 'wp_cache_post_change', 0);
// Coment ID is received
add_action('trackback_post', 'wp_cache_get_postid_from_comment', 0);
add_action('pingback_post', 'wp_cache_get_postid_from_comment', 0);
add_action('comment_post', 'wp_cache_get_postid_from_comment', 0);
add_action('edit_comment', 'wp_cache_get_postid_from_comment', 0);
add_action('wp_set_comment_status', 'wp_cache_get_postid_from_comment', 0);
// No post_id is available
add_action('delete_comment', 'wp_cache_no_postid', 0);
add_action('switch_theme', 'wp_cache_no_postid', 0);
}
//$script = basename($_SERVER['SCRIPT_NAME']);
if ($_SERVER["REQUEST_METHOD"] == 'POST' || get_settings('gzipcompression')) {
return;
}
$script = basename($_SERVER['PHP_SELF']);
if (!in_array($script, $cache_acceptable_files) && wp_cache_is_rejected($_SERVER["REQUEST_URI"])) {
return;
}
if (wp_cache_user_agent_is_rejected()) {
return;
}
ob_start('wp_cache_ob_callback');
register_shutdown_function('wp_cache_ob_end');
}
/** Diable here because PHP4.3 does not make the global
Serious bug?
$mutex_filename = 'wp_cache_mutex.lock';
$new_cache = false;
*/
function wp_cache_phase2()
{
global $cache_filename, $cache_acceptable_files, $wp_cache_meta_object;
wp_cache_mutex_init();
if (function_exists('add_action')) {
// Post ID is received
add_action('publish_post', 'wp_cache_post_change', 0);
add_action('edit_post', 'wp_cache_post_change', 0);
add_action('delete_post', 'wp_cache_post_change', 0);
add_action('publish_phone', 'wp_cache_post_change', 0);
// Coment ID is received
add_action('trackback_post', 'wp_cache_get_postid_from_comment', 0);
add_action('pingback_post', 'wp_cache_get_postid_from_comment', 0);
add_action('comment_post', 'wp_cache_get_postid_from_comment', 0);
add_action('edit_comment', 'wp_cache_get_postid_from_comment', 0);
add_action('wp_set_comment_status', 'wp_cache_get_postid_from_comment', 0);
// No post_id is available
add_action('delete_comment', 'wp_cache_no_postid', 0);
add_action('switch_theme', 'wp_cache_no_postid', 0);
}
//$script = basename($_SERVER['SCRIPT_NAME']);
if ($_SERVER["REQUEST_METHOD"] == 'POST' || get_settings('gzipcompression')) {
return;
}
$script = basename($_SERVER['PHP_SELF']);
if (!in_array($script, $cache_acceptable_files) && wp_cache_is_rejected($_SERVER["REQUEST_URI"])) {
return;
}
if (wp_cache_user_agent_is_rejected()) {
return;
}
if (is_user_logged_in()) {
return;
}
// don't cache pages of logged in users, that is lame.
foreach ($_COOKIE as $key => $val) {
if (strstr($key, 'comment_author')) {
return;
// don't perform caching of pages that commenters see, that is lame
}
}
$wp_cache_meta_object = new CacheMeta();
ob_start('wp_cache_ob_callback');
register_shutdown_function('wp_cache_shutdown_callback');
}
function wp_cache_phase2()
{
global $cache_filename, $cache_acceptable_files, $wp_cache_gzip_encoding, $super_cache_enabled, $cache_rebuild_files, $wp_cache_gmt_offset, $wp_cache_blog_charset, $wp_cache_last_gc;
global $cache_max_time, $wp_cache_not_logged_in, $wp_cache_request_uri, $super_cache_enabled;
if (isset($GLOBALS['wp_super_cache_debug']) && $GLOBALS['wp_super_cache_debug']) {
wp_cache_debug('In WP Cache Phase 2', 5);
}
$wp_cache_gmt_offset = get_option('gmt_offset');
// caching for later use when wpdb is gone. http://wordpress.org/support/topic/224349
$wp_cache_blog_charset = get_option('blog_charset');
wp_cache_mutex_init();
if (function_exists('add_action') && (!defined('WPLOCKDOWN') || defined('WPLOCKDOWN') && constant('WPLOCKDOWN') == '0')) {
if (isset($GLOBALS['wp_super_cache_debug']) && $GLOBALS['wp_super_cache_debug']) {
wp_cache_debug('Setting up WordPress actions', 5);
}
// Post ID is received
add_action('publish_post', 'wp_cache_post_edit', 0);
add_action('edit_post', 'wp_cache_post_change', 0);
// leaving a comment called edit_post
add_action('delete_post', 'wp_cache_post_edit', 0);
add_action('publish_phone', 'wp_cache_post_edit', 0);
// Coment ID is received
add_action('trackback_post', 'wp_cache_get_postid_from_comment', 99);
add_action('pingback_post', 'wp_cache_get_postid_from_comment', 99);
add_action('comment_post', 'wp_cache_get_postid_from_comment', 99);
add_action('edit_comment', 'wp_cache_get_postid_from_comment', 99);
add_action('wp_set_comment_status', 'wp_cache_get_postid_from_comment', 99, 2);
// No post_id is available
add_action('switch_theme', 'wp_cache_no_postid', 99);
add_action('edit_user_profile_update', 'wp_cache_no_postid', 99);
add_action('wp_cache_gc', 'wp_cache_gc_cron');
do_cacheaction('add_cacheaction');
}
if (is_admin()) {
if (isset($GLOBALS['wp_super_cache_debug']) && $GLOBALS['wp_super_cache_debug']) {
wp_cache_debug('Not caching wp-admin requests.', 5);
}
return false;
}
if ($_SERVER["REQUEST_METHOD"] == 'POST' || !empty($_POST) || get_option('gzipcompression')) {
if (isset($GLOBALS['wp_super_cache_debug']) && $GLOBALS['wp_super_cache_debug']) {
wp_cache_debug('Not caching POST request.', 5);
}
return false;
}
if (isset($_GET['preview'])) {
if (isset($GLOBALS['wp_super_cache_debug']) && $GLOBALS['wp_super_cache_debug']) {
wp_cache_debug('Not caching preview post.', 2);
}
return false;
}
if (!empty($_GET)) {
if (isset($GLOBALS['wp_super_cache_debug']) && $GLOBALS['wp_super_cache_debug']) {
wp_cache_debug('Supercache caching disabled. Non empty GET request.', 5);
}
$super_cache_enabled = false;
}
if ($wp_cache_not_logged_in && is_user_logged_in() && !is_feed() && !is_admin()) {
if (isset($GLOBALS['wp_super_cache_debug']) && $GLOBALS['wp_super_cache_debug']) {
wp_cache_debug('not caching for logged in user', 5);
register_shutdown_function('wpcache_logged_in_message');
}
return false;
}
$script = basename($_SERVER['PHP_SELF']);
if (!in_array($script, $cache_acceptable_files) && wp_cache_is_rejected($wp_cache_request_uri)) {
if (isset($GLOBALS['wp_super_cache_debug']) && $GLOBALS['wp_super_cache_debug']) {
wp_cache_debug('URI rejected. Not Caching', 2);
}
return false;
}
if (wp_cache_user_agent_is_rejected()) {
if (isset($GLOBALS['wp_super_cache_debug']) && $GLOBALS['wp_super_cache_debug']) {
wp_cache_debug("USER AGENT ({$_SERVER['HTTP_USER_AGENT']}) rejected. Not Caching", 4);
}
return;
}
if ($wp_cache_gzip_encoding) {
header('Vary: Accept-Encoding, Cookie');
} else {
header('Vary: Cookie');
}
ob_start('wp_cache_ob_callback');
if (isset($GLOBALS['wp_super_cache_debug']) && $GLOBALS['wp_super_cache_debug']) {
wp_cache_debug('Created output buffer', 4);
}
// restore old supercache file temporarily
if ($super_cache_enabled && $cache_rebuild_files) {
$user_info = wp_cache_get_cookies_values();
$do_cache = apply_filters('do_createsupercache', $user_info);
if ($user_info == '' || $do_cache === true) {
$dir = get_current_url_supercache_dir();
$files_to_check = array($dir . 'index.html', $dir . 'index.html.gz');
foreach ($files_to_check as $cache_file) {
if (!@file_exists($cache_file . '.needs-rebuild')) {
continue;
}
$mtime = @filemtime($cache_file . '.needs-rebuild');
if ($mtime && time() - $mtime < 30) {
if (isset($GLOBALS['wp_super_cache_debug']) && $GLOBALS['wp_super_cache_debug']) {
wp_cache_debug("Rebuild file renamed to cache file temporarily", 3);
}
@rename($cache_file . '.needs-rebuild', $cache_file);
}
// cleanup old files or if rename fails
if (@file_exists($cache_file . '.needs-rebuild')) {
if (isset($GLOBALS['wp_super_cache_debug']) && $GLOBALS['wp_super_cache_debug']) {
wp_cache_debug("Rebuild file deleted", 3);
}
@unlink($cache_file . '.needs-rebuild');
}
}
}
}
if (!isset($cache_max_time)) {
$cache_max_time = 600;
}
$last_gc = get_option("wpsupercache_gc_time");
if (!$last_gc) {
update_option('wpsupercache_gc_time', time());
}
$next_gc = $cache_max_time < 1800 ? $cache_max_time : 600;
if ($last_gc < time() - $next_gc) {
update_option('wpsupercache_gc_time', time());
global $wp_cache_shutdown_gc;
if (!isset($wp_cache_shutdown_gc) || $wp_cache_shutdown_gc == 0) {
if (!wp_next_scheduled('wp_cache_gc')) {
wp_schedule_single_event(time() + 10, 'wp_cache_gc');
if (isset($GLOBALS['wp_super_cache_debug']) && $GLOBALS['wp_super_cache_debug']) {
wp_cache_debug('scheduled wp_cache_gc for 10 seconds time.', 5);
}
}
} else {
global $time_to_gc_cache;
$time_to_gc_cache = 1;
// tell the "shutdown gc" to run!
}
}
}
function wp_cache_phase2()
{
global $cache_filename, $cache_acceptable_files, $wp_cache_gzip_encoding, $super_cache_enabled, $cache_rebuild_files, $wp_cache_gmt_offset, $wp_cache_blog_charset, $wp_cache_last_gc;
global $cache_max_time;
$wp_cache_gmt_offset = get_option('gmt_offset');
// caching for later use when wpdb is gone. http://wordpress.org/support/topic/224349
$wp_cache_blog_charset = get_option('blog_charset');
wp_cache_mutex_init();
if (function_exists('add_action') && (!defined('WPLOCKDOWN') || defined('WPLOCKDOWN') && constant('WPLOCKDOWN') == '0')) {
// Post ID is received
add_action('publish_post', 'wp_cache_post_edit', 0);
add_action('edit_post', 'wp_cache_post_change', 0);
// leaving a comment called edit_post
add_action('delete_post', 'wp_cache_post_edit', 0);
add_action('publish_phone', 'wp_cache_post_edit', 0);
// Coment ID is received
add_action('trackback_post', 'wp_cache_get_postid_from_comment', 99);
add_action('pingback_post', 'wp_cache_get_postid_from_comment', 99);
add_action('comment_post', 'wp_cache_get_postid_from_comment', 99);
add_action('edit_comment', 'wp_cache_get_postid_from_comment', 99);
add_action('wp_set_comment_status', 'wp_cache_get_postid_from_comment', 99);
// No post_id is available
add_action('delete_comment', 'wp_cache_no_postid', 99);
add_action('switch_theme', 'wp_cache_no_postid', 99);
add_action('wp_cache_gc', 'wp_cache_gc_cron');
do_cacheaction('add_cacheaction');
}
if ($_SERVER["REQUEST_METHOD"] == 'POST' || get_option('gzipcompression')) {
return;
}
$script = basename($_SERVER['PHP_SELF']);
if (!in_array($script, $cache_acceptable_files) && wp_cache_is_rejected($_SERVER["REQUEST_URI"])) {
return;
}
if (wp_cache_user_agent_is_rejected()) {
return;
}
if ($wp_cache_gzip_encoding) {
header('Vary: Accept-Encoding, Cookie');
} else {
header('Vary: Cookie');
}
ob_start('wp_cache_ob_callback');
// restore old supercache file temporarily
if ($super_cache_enabled && $cache_rebuild_files) {
$user_info = wp_cache_get_cookies_values();
$do_cache = apply_filters('do_createsupercache', $user_info);
if ($user_info == '' || $do_cache === true) {
$dir = get_current_url_supercache_dir();
$files_to_check = array($dir . 'index.html', $dir . 'index.html.gz');
foreach ($files_to_check as $cache_file) {
if (!@file_exists($cache_file . '.needs-rebuild')) {
continue;
}
$mtime = @filemtime($cache_file . '.needs-rebuild');
if ($mtime && time() - $mtime < 30) {
@rename($cache_file . '.needs-rebuild', $cache_file);
}
// cleanup old files or if rename fails
if (@file_exists($cache_file . '.needs-rebuild')) {
@unlink($cache_file . '.needs-rebuild');
}
}
}
}
if (!isset($cache_max_time)) {
$cache_max_time = 600;
}
$last_gc = get_option("wpsupercache_gc_time");
if (!$last_gc) {
update_option('wpsupercache_gc_time', time());
}
$next_gc = $cache_max_time < 1800 ? $cache_max_time : 600;
if ($last_gc < time() - $next_gc) {
update_option('wpsupercache_gc_time', time());
global $wp_cache_shutdown_gc;
if (!isset($wp_cache_shutdown_gc) || $wp_cache_shutdown_gc == 0) {
if (!wp_next_scheduled('wp_cache_gc')) {
wp_schedule_single_event(time() + 10, 'wp_cache_gc');
}
} else {
global $time_to_gc_cache;
$time_to_gc_cache = 1;
// tell the "shutdown gc" to run!
}
}
}
function wp_cache_serve_cache_file()
{
global $key, $blogcacheid, $wp_cache_request_uri, $file_prefix, $blog_cache_dir, $meta_file, $cache_file, $cache_filename, $wp_super_cache_debug, $meta_pathname, $wp_cache_gzip_encoding, $meta;
global $wp_cache_object_cache, $cache_compression, $wp_cache_slash_check, $wp_supercache_304, $wp_cache_home_path, $wp_cache_no_cache_for_get;
global $wp_cache_disable_utf8, $wp_cache_mfunc_enabled;
extract(wp_super_cache_init());
if (wp_cache_user_agent_is_rejected()) {
if (isset($wp_super_cache_debug) && $wp_super_cache_debug) {
wp_cache_debug("No wp-cache file served as user agent rejected.", 5);
}
return false;
}
if ($wp_cache_no_cache_for_get && false == empty($_GET)) {
if (isset($wp_super_cache_debug) && $wp_super_cache_debug) {
wp_cache_debug("Non empty GET request. Caching disabled on settings page. " . print_r($_GET, 1), 1);
}
return false;
}
if ($wp_cache_object_cache && wp_cache_get_cookies_values() == '') {
if (!empty($_GET)) {
if (isset($wp_super_cache_debug) && $wp_super_cache_debug) {
wp_cache_debug("Non empty GET request. Not serving request from object cache. " . print_r($_GET, 1), 1);
}
return false;
}
$oc_key = get_oc_key();
$meta_filename = $oc_key . ".meta";
if (gzip_accepted()) {
$oc_key .= ".gz";
$meta_filename .= ".gz";
}
$cache = wp_cache_get($oc_key, 'supercache');
$meta = unserialize(wp_cache_get($meta_filename, 'supercache'));
if (is_array($meta) == false) {
if (isset($wp_super_cache_debug) && $wp_super_cache_debug) {
wp_cache_debug("Meta array from object cache corrupt. Ignoring cache.", 1);
}
return true;
}
} elseif (file_exists($cache_file)) {
if (isset($wp_super_cache_debug) && $wp_super_cache_debug) {
wp_cache_debug("wp-cache file exists: {$cache_file}", 5);
}
if (!($meta = unserialize(@file_get_contents($meta_pathname)))) {
if (isset($wp_super_cache_debug) && $wp_super_cache_debug) {
wp_cache_debug("couldn't load wp-cache meta file", 5);
}
return true;
}
if (is_array($meta) == false) {
if (isset($wp_super_cache_debug) && $wp_super_cache_debug) {
wp_cache_debug("meta array corrupt, deleting {$meta_pathname} and {$cache_file}", 1);
}
@unlink($meta_pathname);
@unlink($cache_file);
return true;
}
} else {
// last chance, check if a supercache file exists. Just in case .htaccess rules don't work on this host
$filename = supercache_filename();
$file = get_current_url_supercache_dir() . $filename;
if (false == file_exists($file)) {
if (isset($wp_super_cache_debug) && $wp_super_cache_debug) {
wp_cache_debug("No Super Cache file found for current URL: {$file}");
}
return false;
} elseif (false == empty($_GET)) {
if (isset($wp_super_cache_debug) && $wp_super_cache_debug) {
wp_cache_debug("GET array not empty. Cannot serve a supercache file. " . print_r($_GET, 1));
}
return false;
} elseif (wp_cache_get_cookies_values() != '') {
if (isset($wp_super_cache_debug) && $wp_super_cache_debug) {
wp_cache_debug("Cookies found. Cannot serve a supercache file. " . wp_cache_get_cookies_values());
}
return false;
}
if (isset($wp_cache_mfunc_enabled) == false) {
$wp_cache_mfunc_enabled = 0;
}
if (false == isset($wp_cache_home_path)) {
$wp_cache_home_path = '/';
}
// make sure ending slashes are ok
if ($wp_cache_request_uri == $wp_cache_home_path || $wp_cache_slash_check && substr($wp_cache_request_uri, -1) == '/' || $wp_cache_slash_check == 0 && substr($wp_cache_request_uri, -1) != '/') {
if ($wp_cache_mfunc_enabled == 0) {
// get data from file
if ($wp_cache_gzip_encoding) {
if (file_exists($file . '.gz')) {
$cachefiledata = file_get_contents($file . '.gz');
if (isset($wp_super_cache_debug) && $wp_super_cache_debug) {
wp_cache_debug("Fetched gzip static page data from supercache file using PHP. File: {$file}.gz");
}
} else {
$cachefiledata = gzencode(file_get_contents($file), 6, FORCE_GZIP);
if (isset($wp_super_cache_debug) && $wp_super_cache_debug) {
wp_cache_debug("Fetched static page data from supercache file using PHP and gzipped it. File: {$file}");
}
}
} else {
$cachefiledata = file_get_contents($file);
if (isset($wp_super_cache_debug) && $wp_super_cache_debug) {
wp_cache_debug("Fetched static page data from supercache file using PHP. File: {$file}");
}
}
} else {
// get dynamic data from filtered file
$cachefiledata = do_cacheaction('wpsc_cachedata', file_get_contents($file));
if ($wp_cache_gzip_encoding) {
$cachefiledata = gzencode($cachefiledata, 6, FORCE_GZIP);
if (isset($wp_super_cache_debug) && $wp_super_cache_debug) {
wp_cache_debug("Fetched dynamic page data from supercache file using PHP and gzipped it. File: {$file}");
}
} else {
if (isset($wp_super_cache_debug) && $wp_super_cache_debug) {
wp_cache_debug("Fetched dynamic page data from supercache file using PHP. File: {$file}");
}
}
}
if (isset($wp_cache_disable_utf8) == false || $wp_cache_disable_utf8 == 0) {
header("Content-type: text/html; charset=UTF-8");
}
header("Vary: Accept-Encoding, Cookie");
header("Cache-Control: max-age=3, must-revalidate");
header("WP-Super-Cache: Served supercache file from PHP");
$size = function_exists('mb_strlen') ? mb_strlen($cachefiledata, '8bit') : strlen($cachefiledata);
if ($wp_cache_gzip_encoding) {
header('Content-Encoding: ' . $wp_cache_gzip_encoding);
header('Content-Length: ' . $size);
} elseif ($wp_supercache_304) {
header('Content-Length: ' . $size);
}
// don't try to match modified dates if using dynamic code.
if ($wp_cache_mfunc_enabled == 0 && $wp_supercache_304) {
if (function_exists('apache_request_headers')) {
$request = apache_request_headers();
$remote_mod_time = $request['If-Modified-Since'];
} else {
if (isset($_SERVER['HTTP_IF_MODIFIED_SINCE'])) {
$remote_mod_time = $_SERVER['HTTP_IF_MODIFIED_SINCE'];
} else {
$remote_mod_time = 0;
}
}
$local_mod_time = gmdate("D, d M Y H:i:s", filemtime($file)) . ' GMT';
if ($remote_mod_time != 0 && $remote_mod_time == $local_mod_time) {
header("HTTP/1.0 304 Not Modified");
exit;
}
header('Last-Modified: ' . $local_mod_time);
}
echo $cachefiledata;
exit;
} else {
if (isset($wp_super_cache_debug) && $wp_super_cache_debug) {
wp_cache_debug("No wp-cache file exists. Must generate a new one.");
}
return false;
}
}
$cache_file = do_cacheaction('wp_cache_served_cache_file', $cache_file);
// Sometimes the gzip headers are lost. Make sure html returned isn't compressed!
if ($cache_compression && $wp_cache_gzip_encoding && !in_array('Content-Encoding: ' . $wp_cache_gzip_encoding, $meta['headers'])) {
$ungzip = true;
if (isset($wp_super_cache_debug) && $wp_super_cache_debug) {
wp_cache_debug("GZIP headers not found. Force uncompressed output.", 1);
}
} else {
$ungzip = false;
}
foreach ($meta['headers'] as $t => $header) {
// godaddy fix, via http://blog.gneu.org/2008/05/wp-supercache-on-godaddy/ and http://www.littleredrails.com/blog/2007/09/08/using-wp-cache-on-godaddy-500-error/
if (strpos($header, 'Last-Modified:') === false) {
header($header);
}
}
header('WP-Super-Cache: Served legacy cache file');
if ($wp_cache_object_cache) {
if ($cache) {
if ($ungzip) {
// attempt to uncompress the cached file just in case it's gzipped
$uncompressed = gzuncompress($cache);
if ($uncompressed) {
if (isset($wp_super_cache_debug) && $wp_super_cache_debug) {
wp_cache_debug("Uncompressed gzipped cache file from object cache", 1);
}
$cache = $uncompressed;
unset($uncompressed);
}
}
if (isset($meta['dynamic']) && $meta['dynamic']) {
if (isset($wp_super_cache_debug) && $wp_super_cache_debug) {
wp_cache_debug("Serving wp-cache dynamic file from object cache", 5);
}
echo do_cacheaction('wpsc_cachedata', $cache);
} else {
if (isset($wp_super_cache_debug) && $wp_super_cache_debug) {
wp_cache_debug("Serving wp-cache static file from object cache", 5);
}
echo $cache;
}
if (isset($wp_super_cache_debug) && $wp_super_cache_debug) {
wp_cache_debug("exit request", 5);
}
die;
}
} else {
if (isset($meta['dynamic'])) {
if (isset($wp_super_cache_debug) && $wp_super_cache_debug) {
wp_cache_debug("Serving wp-cache dynamic file", 5);
}
if ($ungzip) {
// attempt to uncompress the cached file just in case it's gzipped
$cache = file_get_contents($cache_file);
$uncompressed = @gzuncompress($cache);
if ($uncompressed) {
if (isset($wp_super_cache_debug) && $wp_super_cache_debug) {
wp_cache_debug("Uncompressed gzipped cache file from wp-cache", 1);
}
unset($cache);
echo do_cacheaction('wpsc_cachedata', $uncompressed);
} else {
echo do_cacheaction('wpsc_cachedata', $cache);
}
} else {
echo do_cacheaction('wpsc_cachedata', file_get_contents($cache_file));
}
} else {
if (isset($wp_super_cache_debug) && $wp_super_cache_debug) {
wp_cache_debug("Serving wp-cache static file", 5);
}
if ($ungzip) {
$cache = file_get_contents($cache_file);
$uncompressed = gzuncompress($cache);
if ($uncompressed) {
if (isset($wp_super_cache_debug) && $wp_super_cache_debug) {
wp_cache_debug("Uncompressed gzipped cache file from wp-cache", 1);
}
echo $uncompressed;
} else {
echo $cache;
}
} else {
readfile($cache_file);
}
}
if (isset($wp_super_cache_debug) && $wp_super_cache_debug) {
wp_cache_debug("exit request", 5);
}
die;
}
}
function wp_cache_phase2()
{
global $wpsc_settings;
global $cache_filename, $cache_acceptable_files, $wp_cache_gzip_encoding, $super_cache_enabled, $cache_rebuild_files, $wp_cache_last_gc;
global $cache_max_time, $wp_cache_request_uri, $super_cache_enabled, $wp_cache_object_cache, $cache_time_interval;
global $cache_enabled, $wp_cache_gmt_offset, $wp_cache_blog_charset, $cache_schedule_type, $cache_scheduled_time, $cache_schedule_interval;
if ($cache_enabled == false) {
return false;
}
if (isset($GLOBALS['wp_super_cache_debug']) && $GLOBALS['wp_super_cache_debug']) {
wp_cache_debug('In WP Cache Phase 2', 5);
}
$wp_cache_gmt_offset = get_option('gmt_offset');
// caching for later use when wpdb is gone. http://wordpress.org/support/topic/224349
$wp_cache_blog_charset = get_option('blog_charset');
wp_cache_mutex_init();
if (function_exists('add_action') && (!defined('WPLOCKDOWN') || defined('WPLOCKDOWN') && constant('WPLOCKDOWN') == '0')) {
if (isset($GLOBALS['wp_super_cache_debug']) && $GLOBALS['wp_super_cache_debug']) {
wp_cache_debug('Setting up WordPress actions', 5);
}
// Post ID is received
add_action('publish_post', 'wp_cache_post_edit', 0);
add_action('edit_post', 'wp_cache_post_change', 0);
// leaving a comment called edit_post
add_action('delete_post', 'wp_cache_post_edit', 0);
add_action('publish_phone', 'wp_cache_post_edit', 0);
// Coment ID is received
add_action('trackback_post', 'wp_cache_get_postid_from_comment', 99);
add_action('pingback_post', 'wp_cache_get_postid_from_comment', 99);
add_action('comment_post', 'wp_cache_get_postid_from_comment', 99);
add_action('edit_comment', 'wp_cache_get_postid_from_comment', 99);
add_action('wp_set_comment_status', 'wp_cache_get_postid_from_comment', 99, 2);
// No post_id is available
add_action('switch_theme', 'wp_cache_no_postid', 99);
add_action('edit_user_profile_update', 'wp_cache_no_postid', 99);
add_action('wp_update_nav_menu', 'wp_cache_clear_cache');
add_action('wp_cache_gc', 'wp_cache_gc_cron');
add_filter('supercache_filename_str', 'wp_cache_check_mobile');
do_cacheaction('add_cacheaction');
}
if (is_admin()) {
if (isset($GLOBALS['wp_super_cache_debug']) && $GLOBALS['wp_super_cache_debug']) {
wp_cache_debug('Not caching wp-admin requests.', 5);
}
return false;
}
if ($_SERVER["REQUEST_METHOD"] == 'POST' || !empty($_POST) || get_option('gzipcompression')) {
if (isset($GLOBALS['wp_super_cache_debug']) && $GLOBALS['wp_super_cache_debug']) {
wp_cache_debug('Not caching POST request.', 5);
}
return false;
}
if ($wp_cache_object_cache && !empty($_GET)) {
if (isset($GLOBALS['wp_super_cache_debug']) && $GLOBALS['wp_super_cache_debug']) {
wp_cache_debug('Not caching GET request while object cache storage enabled.', 5);
}
return false;
}
if (isset($_GET['preview'])) {
if (isset($GLOBALS['wp_super_cache_debug']) && $GLOBALS['wp_super_cache_debug']) {
wp_cache_debug('Not caching preview post.', 2);
}
return false;
}
if (!empty($_GET)) {
if (isset($GLOBALS['wp_super_cache_debug']) && $GLOBALS['wp_super_cache_debug']) {
wp_cache_debug('Supercache caching disabled. Only using wp-cache. Non empty GET request.', 5);
}
$super_cache_enabled = false;
}
$script = basename($_SERVER['PHP_SELF']);
if (!in_array($script, $cache_acceptable_files) && wp_cache_is_rejected($wp_cache_request_uri)) {
if (isset($GLOBALS['wp_super_cache_debug']) && $GLOBALS['wp_super_cache_debug']) {
wp_cache_debug('URI rejected. Not Caching', 2);
}
return false;
}
if (wp_cache_user_agent_is_rejected()) {
if (isset($GLOBALS['wp_super_cache_debug']) && $GLOBALS['wp_super_cache_debug']) {
wp_cache_debug("USER AGENT ({$_SERVER['HTTP_USER_AGENT']}) rejected. Not Caching", 4);
}
return;
}
if ($wp_cache_gzip_encoding) {
header('Vary: Accept-Encoding, Cookie');
} else {
header('Vary: Cookie');
}
ob_start('wp_cache_ob_callback');
if (isset($GLOBALS['wp_super_cache_debug']) && $GLOBALS['wp_super_cache_debug']) {
wp_cache_debug('Created output buffer', 4);
}
// restore old supercache file temporarily
if ($super_cache_enabled && $cache_rebuild_files) {
$user_info = wp_cache_get_cookies_values();
$do_cache = apply_filters('do_createsupercache', $user_info);
if ($user_info == '' || $do_cache === true) {
wpcache_do_rebuild(get_current_url_supercache_dir());
}
}
schedule_wp_gc();
}
function wp_cache_serve_cache_file()
{
global $key, $blogcacheid, $wp_cache_request_uri, $file_prefix, $blog_cache_dir, $meta_file, $cache_file, $cache_filename, $wp_super_cache_debug, $meta_pathname, $wp_cache_gzip_encoding, $meta;
global $wp_cache_object_cache, $cache_compression, $wp_cache_slash_check, $wp_supercache_304;
extract(wp_super_cache_init());
if (wp_cache_user_agent_is_rejected()) {
if (isset($wp_super_cache_debug) && $wp_super_cache_debug) {
wp_cache_debug("No wp-cache file served as user agent rejected.", 5);
}
return false;
}
if ($wp_cache_object_cache && wp_cache_get_cookies_values() == '') {
if (!empty($_GET)) {
if (isset($wp_super_cache_debug) && $wp_super_cache_debug) {
wp_cache_debug("Non empty GET request. Not serving request from object cache", 1);
}
return false;
}
$oc_key = get_oc_key();
$meta_filename = $oc_key . ".meta";
if (gzip_accepted()) {
$oc_key .= ".gz";
$meta_filename .= ".gz";
}
$cache = wp_cache_get($oc_key, 'supercache');
$meta = unserialize(wp_cache_get($meta_filename, 'supercache'));
if (is_array($meta) == false) {
if (isset($wp_super_cache_debug) && $wp_super_cache_debug) {
wp_cache_debug("Meta array from object cache corrupt. Ignoring cache.", 1);
}
return true;
}
} elseif (file_exists($cache_file)) {
if (isset($wp_super_cache_debug) && $wp_super_cache_debug) {
wp_cache_debug("wp-cache file exists: {$cache_file}", 5);
}
if (!($meta = unserialize(@file_get_contents($meta_pathname)))) {
if (isset($wp_super_cache_debug) && $wp_super_cache_debug) {
wp_cache_debug("couldn't load wp-cache meta file", 5);
}
return true;
}
if (is_array($meta) == false) {
if (isset($wp_super_cache_debug) && $wp_super_cache_debug) {
wp_cache_debug("meta array corrupt, deleting {$meta_pathname} and {$cache_file}", 1);
}
@unlink($meta_pathname);
@unlink($cache_file);
return true;
}
} else {
// last chance, check if a supercache file exists. Just in case .htaccess rules don't work on this host
$file = get_current_url_supercache_dir() . "index.html";
$phpfile = get_current_url_supercache_dir() . "index.html.php";
$serving_supercache = false;
if (file_exists($file)) {
$serving_supercache = 'html';
} elseif (file_exists($phpfile)) {
$serving_supercache = 'php';
}
if (($wp_cache_request_uri == '/' || $wp_cache_slash_check && substr($wp_cache_request_uri, -1) == '/' || $wp_cache_slash_check == 0 && substr($wp_cache_request_uri, -1) != '/') && (wp_cache_get_cookies_values() == '' && empty($_GET) && $serving_supercache)) {
header("Content-type: text/html; charset=UTF-8");
// UTF-8 hard coded is bad but we don't know what it is this early in the process
header("Vary: Accept-Encoding, Cookie");
header("Cache-Control: max-age=300, must-revalidate");
header("WP-Super-Cache: Served supercache file from PHP");
if (file_exists($file . '.gz') && $wp_cache_gzip_encoding) {
$file = $file . '.gz';
header('Content-Encoding: ' . $wp_cache_gzip_encoding);
header('Content-Length: ' . filesize($file));
} elseif ($serving_supercache == 'html' && $wp_supercache_304) {
header('Content-Length: ' . filesize($file));
}
if ($serving_supercache == 'html' && $wp_supercache_304) {
if (function_exists('apache_request_headers')) {
$request = apache_request_headers();
$remote_mod_time = $request['If-Modified-Since'];
} else {
$remote_mod_time = $_SERVER['HTTP_IF_MODIFIED_SINCE'];
}
$local_mod_time = gmdate("D, d M Y H:i:s", filemtime($file)) . ' GMT';
if ($remote_mod_time == $local_mod_time) {
header("HTTP/1.0 304 Not Modified");
exit;
}
header('Last-Modified: ' . $local_mod_time);
}
if ($serving_supercache == 'html') {
readfile($file);
if (isset($wp_super_cache_debug) && $wp_super_cache_debug) {
wp_cache_debug("Served page from supercache file using PHP.", 5);
}
exit;
} elseif ($serving_supercache == 'php') {
$cachefiledata = file_get_contents($phpfile);
if ($cache_compression and $wp_cache_gzip_encoding) {
ob_start("ob_gzhandler");
eval('?>' . $cachefiledata . '<?php ');
echo "\n<!-- Compression = gzip -->\n";
ob_end_flush();
if (isset($wp_super_cache_debug) && $wp_super_cache_debug) {
wp_cache_debug("Served compressed dynamic page from supercache file using PHP. File: {$file}", 5);
}
} else {
eval('?>' . $cachefiledata . '<?php ');
if (isset($wp_super_cache_debug) && $wp_super_cache_debug) {
wp_cache_debug("Served dynamic page from supercache file using PHP. File: {$file}", 5);
}
}
exit;
}
} else {
if (isset($wp_super_cache_debug) && $wp_super_cache_debug) {
wp_cache_debug("No wp-cache file exists. Must generate a new one.", 5);
}
return false;
}
}
$cache_file = do_cacheaction('wp_cache_served_cache_file', $cache_file);
// Sometimes the gzip headers are lost. Make sure html returned isn't compressed!
if ($cache_compression && $wp_cache_gzip_encoding && !in_array('Content-Encoding: ' . $wp_cache_gzip_encoding, $meta['headers'])) {
$ungzip = true;
if (isset($wp_super_cache_debug) && $wp_super_cache_debug) {
wp_cache_debug("GZIP headers not found. Force uncompressed output.", 1);
}
} else {
$ungzip = false;
}
foreach ($meta['headers'] as $t => $header) {
// godaddy fix, via http://blog.gneu.org/2008/05/wp-supercache-on-godaddy/ and http://www.littleredrails.com/blog/2007/09/08/using-wp-cache-on-godaddy-500-error/
if (strpos($header, 'Last-Modified:') === false) {
header($header);
}
}
header('WP-Super-Cache: Served legacy cache file');
if ($wp_cache_object_cache) {
if ($cache) {
if ($ungzip) {
$uncompressed = gzuncompress($cache);
if ($uncompressed) {
if (isset($wp_super_cache_debug) && $wp_super_cache_debug) {
wp_cache_debug("Uncompressed gzipped cache file from object cache", 1);
}
$cache = $uncompressed;
unset($uncompressed);
}
}
if (isset($meta['dynamic']) && $meta['dynamic']) {
if (isset($wp_super_cache_debug) && $wp_super_cache_debug) {
wp_cache_debug("Serving wp-cache dynamic file from object cache", 5);
}
eval('?>' . $cache . '<?php ');
} else {
if (isset($wp_super_cache_debug) && $wp_super_cache_debug) {
wp_cache_debug("Serving wp-cache static file from object cache", 5);
}
echo $cache;
}
if (isset($wp_super_cache_debug) && $wp_super_cache_debug) {
wp_cache_debug("exit request", 5);
}
die;
}
} else {
if ($meta['dynamic']) {
if (isset($wp_super_cache_debug) && $wp_super_cache_debug) {
wp_cache_debug("Serving wp-cache dynamic file", 5);
}
if ($ungzip) {
$cache = file_get_contents($cache_file);
$uncompressed = gzuncompress($cache);
if ($uncompressed) {
if (isset($wp_super_cache_debug) && $wp_super_cache_debug) {
wp_cache_debug("Uncompressed gzipped cache file from wp-cache", 1);
}
unset($cache);
eval('?>' . $uncompressed . '<?php ');
} else {
eval('?>' . $cache . '<?php ');
}
} else {
include $cache_file;
}
} else {
if (isset($wp_super_cache_debug) && $wp_super_cache_debug) {
wp_cache_debug("Serving wp-cache static file", 5);
}
if ($wp_supercache_304) {
if (function_exists('apache_request_headers')) {
$request = apache_request_headers();
$remote_mod_time = $request['If-Modified-Since'];
} else {
$remote_mod_time = $_SERVER['HTTP_IF_MODIFIED_SINCE'];
}
$local_mod_time = gmdate("D, d M Y H:i:s", filemtime($cache_file)) . ' GMT';
if ($remote_mod_time == $local_mod_time) {
header("HTTP/1.0 304 Not Modified");
exit;
}
header('Last-Modified: ' . $local_mod_time);
}
if ($ungzip) {
$cache = file_get_contents($cache_file);
$uncompressed = gzuncompress($cache);
if ($uncompressed) {
if (isset($wp_super_cache_debug) && $wp_super_cache_debug) {
wp_cache_debug("Uncompressed gzipped cache file from wp-cache", 1);
}
echo $uncompressed;
} else {
echo $cache;
}
} else {
readfile($cache_file);
}
}
if (isset($wp_super_cache_debug) && $wp_super_cache_debug) {
wp_cache_debug("exit request", 5);
}
die;
}
}
function wp_cache_ob_callback($buffer)
{
global $wp_cache_pages, $wp_query, $wp_super_cache_query, $cache_acceptable_files, $wp_cache_no_cache_for_get, $wp_cache_object_cache, $wp_cache_request_uri;
$buffer = apply_filters('wp_cache_ob_callback_filter', $buffer);
$script = basename($_SERVER['PHP_SELF']);
// All the things that can stop a page being cached
$cache_this_page = true;
if (defined('DONOTCACHEPAGE')) {
wp_cache_debug('DONOTCACHEPAGE defined. Caching disabled.', 2);
$cache_this_page = false;
} elseif ($wp_cache_no_cache_for_get && false == empty($_GET) && false == defined('DOING_CRON')) {
wp_cache_debug("Non empty GET request. Caching disabled on settings page. " . serialize($_GET), 1);
$cache_this_page = false;
} elseif ($_SERVER["REQUEST_METHOD"] == 'POST' || !empty($_POST) || get_option('gzipcompression')) {
wp_cache_debug('Not caching POST request.', 5);
$cache_this_page = false;
} elseif ($wp_cache_object_cache && !empty($_GET)) {
wp_cache_debug('Not caching GET request while object cache storage enabled.', 5);
$cache_this_page = false;
} elseif (isset($_GET['preview'])) {
wp_cache_debug('Not caching preview post.', 2);
$cache_this_page = false;
} elseif (!in_array($script, $cache_acceptable_files) && wp_cache_is_rejected($wp_cache_request_uri)) {
wp_cache_debug('URI rejected. Not Caching', 2);
$cache_this_page = false;
} elseif (wp_cache_user_agent_is_rejected()) {
wp_cache_debug("USER AGENT ({$_SERVER['HTTP_USER_AGENT']}) rejected. Not Caching", 4);
$cache_this_page = false;
} elseif (isset($wp_cache_pages['single']) && $wp_cache_pages['single'] == 1 && isset($wp_super_cache_query['is_single'])) {
wp_cache_debug('Not caching single post.', 2);
$cache_this_page = false;
} elseif (isset($wp_cache_pages['pages']) && $wp_cache_pages['pages'] == 1 && isset($wp_super_cache_query['is_page'])) {
wp_cache_debug('Not caching single page.', 2);
$cache_this_page = false;
} elseif (isset($wp_cache_pages['archives']) && $wp_cache_pages['archives'] == 1 && isset($wp_super_cache_query['is_archive'])) {
wp_cache_debug('Not caching archive page.', 2);
$cache_this_page = false;
} elseif (isset($wp_cache_pages['tag']) && $wp_cache_pages['tag'] == 1 && isset($wp_super_cache_query['is_tag'])) {
wp_cache_debug('Not caching tag page.', 2);
$cache_this_page = false;
} elseif (isset($wp_cache_pages['category']) && $wp_cache_pages['category'] == 1 && isset($wp_super_cache_query['is_category'])) {
wp_cache_debug('Not caching category page.', 2);
$cache_this_page = false;
} elseif (isset($wp_cache_pages['frontpage']) && $wp_cache_pages['frontpage'] == 1 && isset($wp_super_cache_query['is_front_page'])) {
wp_cache_debug('Not caching front page.', 2);
$cache_this_page = false;
} elseif (isset($wp_cache_pages['home']) && $wp_cache_pages['home'] == 1 && isset($wp_super_cache_query['is_home'])) {
wp_cache_debug('Not caching home page.', 2);
$cache_this_page = false;
} elseif (isset($wp_cache_pages['search']) && $wp_cache_pages['search'] == 1 && isset($wp_super_cache_query['is_search'])) {
wp_cache_debug('Not caching search page.', 2);
$cache_this_page = false;
} elseif (isset($wp_cache_pages['author']) && $wp_cache_pages['author'] == 1 && isset($wp_super_cache_query['is_author'])) {
wp_cache_debug('Not caching author page.', 2);
$cache_this_page = false;
} elseif (isset($wp_cache_pages['feed']) && $wp_cache_pages['feed'] == 1 && isset($wp_super_cache_query['is_feed'])) {
wp_cache_debug('Not caching feed.', 2);
$cache_this_page = false;
}
if (!isset($wp_query)) {
wp_cache_debug('wp_cache_ob_callback: WARNING! $query not defined but the plugin has worked around that problem.', 4);
}
if ($cache_this_page) {
wp_cache_debug('Output buffer callback', 4);
$buffer = wp_cache_get_ob($buffer);
wp_cache_shutdown_callback();
return $buffer;
} else {
return wp_cache_maybe_dynamic($buffer);
}
}
function wp_cache_serve_cache_file()
{
global $key, $blogcacheid, $wp_cache_request_uri, $file_prefix, $blog_cache_dir, $meta_file, $cache_file, $cache_filename, $wp_super_cache_debug, $meta_pathname, $wp_cache_gzip_encoding, $meta;
global $wp_cache_object_cache, $cache_compression, $wp_cache_slash_check;
extract(wp_super_cache_init());
if (wp_cache_user_agent_is_rejected()) {
if (isset($wp_super_cache_debug) && $wp_super_cache_debug) {
wp_cache_debug("No wp-cache file served as user agent rejected.", 5);
}
return false;
}
if ($wp_cache_object_cache && wp_cache_get_cookies_values() == '') {
if (!empty($_GET)) {
if (isset($wp_super_cache_debug) && $wp_super_cache_debug) {
wp_cache_debug("Non empty GET request. Not serving request from object cache", 1);
}
return false;
}
$oc_key = get_oc_key();
$meta_filename = $oc_key . ".meta";
if (gzip_accepted()) {
$oc_key .= ".gz";
$meta_filename .= ".gz";
}
$cache = wp_cache_get($oc_key, 'supercache');
$meta = unserialize(wp_cache_get($meta_filename, 'supercache'));
if (is_array($meta) == false) {
if (isset($wp_super_cache_debug) && $wp_super_cache_debug) {
wp_cache_debug("Meta array from object cache corrupt. Ignoring cache.", 1);
}
return true;
}
} elseif (file_exists($cache_file)) {
if (isset($wp_super_cache_debug) && $wp_super_cache_debug) {
wp_cache_debug("wp-cache file exists: {$cache_file}", 5);
}
if (!($meta = unserialize(@file_get_contents($meta_pathname)))) {
if (isset($wp_super_cache_debug) && $wp_super_cache_debug) {
wp_cache_debug("couldn't load wp-cache meta file", 5);
}
return true;
}
if (is_array($meta) == false) {
if (isset($wp_super_cache_debug) && $wp_super_cache_debug) {
wp_cache_debug("meta array corrupt, deleting {$meta_pathname} and {$cache_file}", 1);
}
@unlink($meta_pathname);
@unlink($cache_file);
return true;
}
} else {
// last chance, check if a supercache file exists. Just in case .htaccess rules don't work on this host
$file = get_current_url_supercache_dir() . "index.html";
if (($wp_cache_request_uri == '/' || $wp_cache_slash_check && substr($wp_cache_request_uri, -1) == '/' || $wp_cache_slash_check == 0 && substr($wp_cache_request_uri, -1) != '/') && (wp_cache_get_cookies_values() == '' && empty($_GET) && file_exists($file))) {
header("Content-type: text/html; charset=UTF-8");
// UTF-8 hard coded is bad but we don't know what it is this early in the process
header("Vary: Accept-Encoding, Cookie");
header("Cache-Control: max-age=300, must-revalidate");
header("WP-Cache: Served supercache file from PHP");
readfile($file);
if (isset($wp_super_cache_debug) && $wp_super_cache_debug) {
wp_cache_debug("Served page from supercache file. Mod rewrite rules may be broken or missing.", 5);
}
die;
} else {
if (isset($wp_super_cache_debug) && $wp_super_cache_debug) {
wp_cache_debug("No wp-cache file exists. Must generate a new one.", 5);
}
return false;
}
}
$cache_file = do_cacheaction('wp_cache_served_cache_file', $cache_file);
// Sometimes the gzip headers are lost. Make sure html returned isn't compressed!
if ($cache_compression && $wp_cache_gzip_encoding && !in_array('Content-Encoding: ' . $wp_cache_gzip_encoding, $meta['headers'])) {
$ungzip = true;
if (isset($wp_super_cache_debug) && $wp_super_cache_debug) {
wp_cache_debug("GZIP headers not found. Force uncompressed output.", 1);
}
} else {
$ungzip = false;
}
foreach ($meta['headers'] as $t => $header) {
// godaddy fix, via http://blog.gneu.org/2008/05/wp-supercache-on-godaddy/ and http://www.littleredrails.com/blog/2007/09/08/using-wp-cache-on-godaddy-500-error/
if (strpos($header, 'Last-Modified:') === false) {
header($header);
}
}
header('WP-Super-Cache: WP-Cache');
if ($wp_cache_object_cache) {
if ($cache) {
if ($ungzip) {
$uncompressed = gzuncompress($cache);
if ($uncompressed) {
if (isset($wp_super_cache_debug) && $wp_super_cache_debug) {
wp_cache_debug("Uncompressed gzipped cache file from object cache", 1);
}
$cache = $uncompressed;
unset($uncompressed);
}
}
if ($meta['dynamic']) {
if (isset($wp_super_cache_debug) && $wp_super_cache_debug) {
wp_cache_debug("Serving wp-cache dynamic file from object cache", 5);
}
eval('?>' . $cache . '<?php ');
} else {
if (isset($wp_super_cache_debug) && $wp_super_cache_debug) {
wp_cache_debug("Serving wp-cache static file from object cache", 5);
}
echo $cache;
}
if (isset($wp_super_cache_debug) && $wp_super_cache_debug) {
wp_cache_debug("exit request", 5);
}
die;
}
} else {
if ($meta['dynamic']) {
if (isset($wp_super_cache_debug) && $wp_super_cache_debug) {
wp_cache_debug("Serving wp-cache dynamic file", 5);
}
if ($ungzip) {
$cache = file_get_contents($cache_file);
$uncompressed = gzuncompress($cache);
if ($uncompressed) {
if (isset($wp_super_cache_debug) && $wp_super_cache_debug) {
wp_cache_debug("Uncompressed gzipped cache file from wp-cache", 1);
}
unset($cache);
eval('?>' . $uncompressed . '<?php ');
} else {
eval('?>' . $cache . '<?php ');
}
} else {
include $cache_file;
}
} else {
if (isset($wp_super_cache_debug) && $wp_super_cache_debug) {
wp_cache_debug("Serving wp-cache static file", 5);
}
if ($ungzip) {
$cache = file_get_contents($cache_file);
$uncompressed = gzuncompress($cache);
if ($uncompressed) {
if (isset($wp_super_cache_debug) && $wp_super_cache_debug) {
wp_cache_debug("Uncompressed gzipped cache file from wp-cache", 1);
}
echo $uncompressed;
} else {
echo $cache;
}
} else {
readfile($cache_file);
}
}
if (isset($wp_super_cache_debug) && $wp_super_cache_debug) {
wp_cache_debug("exit request", 5);
}
die;
}
}
function wp_cache_phase2()
{
global $cache_filename, $cache_acceptable_files, $wp_cache_meta_object, $wp_cache_gzip_encoding, $super_cache_enabled, $cache_rebuild_files;
wp_cache_mutex_init();
if (function_exists('add_action') && (!defined('WPLOCKDOWN') || defined('WPLOCKDOWN') && constant('WPLOCKDOWN') == '0')) {
// Post ID is received
add_action('publish_post', 'wp_cache_post_edit', 0);
add_action('edit_post', 'wp_cache_post_change', 0);
// leaving a comment called edit_post
add_action('delete_post', 'wp_cache_post_edit', 0);
add_action('publish_phone', 'wp_cache_post_edit', 0);
// Coment ID is received
add_action('trackback_post', 'wp_cache_get_postid_from_comment', 0);
add_action('pingback_post', 'wp_cache_get_postid_from_comment', 0);
add_action('comment_post', 'wp_cache_get_postid_from_comment', 0);
add_action('edit_comment', 'wp_cache_get_postid_from_comment', 0);
add_action('wp_set_comment_status', 'wp_cache_get_postid_from_comment', 0);
// No post_id is available
add_action('delete_comment', 'wp_cache_no_postid', 0);
add_action('switch_theme', 'wp_cache_no_postid', 0);
add_action('wp_cache_gc', 'wp_cache_gc_cron');
do_cacheaction('add_cacheaction');
}
if ($_SERVER["REQUEST_METHOD"] == 'POST' || get_option('gzipcompression')) {
return;
}
$script = basename($_SERVER['PHP_SELF']);
if (!in_array($script, $cache_acceptable_files) && wp_cache_is_rejected($_SERVER["REQUEST_URI"])) {
return;
}
if (wp_cache_user_agent_is_rejected()) {
return;
}
if (!is_object($wp_cache_meta_object)) {
$wp_cache_meta_object = new CacheMeta();
}
if ($wp_cache_gzip_encoding) {
header('Vary: Accept-Encoding, Cookie');
} else {
header('Vary: Cookie');
}
ob_start('wp_cache_ob_callback');
// restore old supercache file temporarily
if ($super_cache_enabled && $cache_rebuild_files) {
$user_info = wp_cache_get_cookies_values();
$do_cache = apply_filters('do_createsupercache', $user_info);
if ($user_info == '' || $do_cache === true) {
$dir = get_current_url_supercache_dir();
$files_to_check = array($dir . 'index.html', $dir . 'index.html.gz');
foreach ($files_to_check as $cache_file) {
if (!file_exists($cache_file . '.needs-rebuild')) {
continue;
}
$mtime = @filemtime($cache_file . '.needs-rebuild');
if ($mtime && time() - $mtime < 30) {
@rename($cache_file . '.needs-rebuild', $cache_file);
}
// cleanup old files or if rename fails
if (@file_exists($cache_file . '.needs-rebuild')) {
@unlink($cache_file . '.needs-rebuild');
}
}
}
}
register_shutdown_function('wp_cache_shutdown_callback');
}
function wp_cache_serve_cache_file()
{
global $key, $blogcacheid, $wp_cache_request_uri, $file_prefix, $blog_cache_dir, $meta_file, $cache_file, $cache_filename, $wp_super_cache_debug, $meta_pathname, $wp_cache_gzip_encoding, $meta;
extract(wp_super_cache_init());
if (wp_cache_user_agent_is_rejected()) {
if (isset($wp_super_cache_debug) && $wp_super_cache_debug) {
wp_cache_debug("No wp-cache file served as user agent rejected.", 5);
}
return false;
}
if (file_exists($cache_file)) {
if (isset($wp_super_cache_debug) && $wp_super_cache_debug) {
wp_cache_debug("wp-cache file exists", 5);
}
if (!($meta = unserialize(@file_get_contents($meta_pathname)))) {
if (isset($wp_super_cache_debug) && $wp_super_cache_debug) {
wp_cache_debug("couldn't load wp-cache meta file", 5);
}
return true;
}
if (is_array($meta) == false) {
if (isset($wp_super_cache_debug) && $wp_super_cache_debug) {
wp_cache_debug("meta array corrupt, deleting {$meta_pathname} and {$cache_file}", 1);
}
@unlink($meta_pathname);
@unlink($cache_file);
return true;
}
$cache_file = do_cacheaction('wp_cache_served_cache_file', $cache_file);
// Sometimes the gzip headers are lost. If this is a gzip capable client, send those headers.
if ($wp_cache_gzip_encoding && !in_array('Content-Encoding: ' . $wp_cache_gzip_encoding, $meta['headers'])) {
$meta['headers']['Content-Encoding'] = 'Content-Encoding: ' . $wp_cache_gzip_encoding;
$meta['headers']['Vary'] = 'Vary: Accept-Encoding, Cookie';
if (isset($wp_super_cache_debug) && $wp_super_cache_debug) {
wp_cache_debug("added gzip headers before serving.", 1);
}
}
foreach ($meta['headers'] as $t => $header) {
// godaddy fix, via http://blog.gneu.org/2008/05/wp-supercache-on-godaddy/ and http://www.littleredrails.com/blog/2007/09/08/using-wp-cache-on-godaddy-500-error/
if (strpos($header, 'Last-Modified:') === false) {
header($header);
}
}
header('WP-Super-Cache: WP-Cache');
if ($meta['dynamic']) {
if (isset($wp_super_cache_debug) && $wp_super_cache_debug) {
wp_cache_debug("Serving wp-cache dynamic file", 5);
}
include $cache_file;
} else {
if (isset($wp_super_cache_debug) && $wp_super_cache_debug) {
wp_cache_debug("Serving wp-cache static file", 5);
}
readfile($cache_file);
}
if (isset($wp_super_cache_debug) && $wp_super_cache_debug) {
wp_cache_debug("exit request", 5);
}
die;
} else {
if (isset($wp_super_cache_debug) && $wp_super_cache_debug) {
wp_cache_debug("No wp-cache file exists. Must generate a new one.", 5);
}
}
}
