File: /home/mmickelson/tfgarchive/wpblogtest1.old/wp-content/plugins/wp-super-cache/wp-cache-phase1.php
<?php
//error_reporting(E_ERROR | E_PARSE); // uncomment to debug this file!
// Pre-2.6 compatibility
if( !defined('WP_CONTENT_DIR') )
define( 'WP_CONTENT_DIR', ABSPATH . 'wp-content' );
if( !include( WP_CONTENT_DIR . '/wp-cache-config.php' ) )
return true;
if( !defined( 'WPCACHEHOME' ) )
define('WPCACHEHOME', dirname(__FILE__).'/');
include( WPCACHEHOME . 'wp-cache-base.php');
if( $blogcacheid != '' ) {
$blog_cache_dir = str_replace( '//', '/', $cache_path . "blogs/" . $blogcacheid . '/' );
} else {
$blog_cache_dir = $cache_path;
}
$mutex_filename = 'wp_cache_mutex.lock';
$new_cache = false;
// Don't change variables behind this point
if( !isset( $wp_cache_plugins_dir ) )
$wp_cache_plugins_dir = WPCACHEHOME . 'plugins';
require_once( WPCACHEHOME . 'wp-cache-phase2.php');
$plugins = glob( $wp_cache_plugins_dir . '/*.php' );
if( is_array( $plugins ) ) {
foreach ( $plugins as $plugin ) {
if( is_file( $plugin ) )
require_once( $plugin );
}
}
if (!$cache_enabled || $_SERVER["REQUEST_METHOD"] == 'POST')
return true;
$file_expired = false;
$cache_filename = '';
$meta_file = '';
$wp_cache_gzip_encoding = '';
$gzipped = 0;
$gzsize = 0;
function gzip_accepted(){
if( ini_get( 'zlib.output_compression' ) ) // don't compress WP-Cache data files when PHP is already doing it
return false;
if (strpos($_SERVER['HTTP_ACCEPT_ENCODING'], 'gzip') === false) return false;
return 'gzip';
}
if ($cache_compression) {
$wp_cache_gzip_encoding = gzip_accepted();
}
add_cacheaction( 'wp_cache_get_cookies_values', 'wp_cache_check_mobile' );
$wp_cache_request_uri = $_SERVER[ 'REQUEST_URI' ]; // Cache this in case any plugin modifies it.
if ( $wp_cache_object_cache ) {
if ( ! include_once( WP_CONTENT_DIR . '/object-cache.php' ) )
return;
wp_cache_init(); // Note: wp-settings.php calls wp_cache_init() which clobbers the object made here.
if ( ! is_object( $wp_object_cache ) )
return;
}
if( false == @is_dir( $blog_cache_dir ) ) {
@mkdir( $cache_path . "blogs" );
@mkdir( $blog_cache_dir );
}
if( false == @is_dir( $blog_cache_dir . 'meta' ) )
@mkdir( $blog_cache_dir . 'meta' );
$wp_start_time = microtime();
function get_wp_cache_key( $url = false ) {
global $wp_cache_request_uri, $wp_cache_gzip_encoding;
if ( !$url )
$url = $wp_cache_request_uri;
return do_cacheaction( 'wp_cache_key', $_SERVER['HTTP_HOST'] . intval( $_SERVER[ 'SERVER_PORT' ] ) . preg_replace('/#.*$/', '', str_replace( '/index.php', '/', $url ) ) . $wp_cache_gzip_encoding . wp_cache_get_cookies_values() );
}
function wp_super_cache_init() {
global $wp_cache_key, $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;
$wp_cache_key = get_wp_cache_key();
$key = $blogcacheid . md5( $wp_cache_key );
$wp_cache_key = $blogcacheid . $wp_cache_key;
$cache_filename = $file_prefix . $key . '.html';
$meta_file = $file_prefix . $key . '.meta';
$cache_file = realpath( $blog_cache_dir . $cache_filename );
$meta_pathname = realpath( $blog_cache_dir . 'meta/' . $meta_file );
return compact( 'key', 'cache_filename', 'meta_file', 'cache_file', 'meta_pathname' );
}
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();
}
}
if(defined('DOING_CRON')) {
extract( wp_super_cache_init() );
return true;
}
if ( !isset( $wp_super_cache_late_init ) || ( isset( $wp_super_cache_late_init ) && false == $wp_super_cache_late_init ) ) {
wp_cache_serve_cache_file();
}
function wp_cache_postload() {
global $cache_enabled, $wp_super_cache_late_init, $wp_super_cache_debug;
if ( !$cache_enabled || isset( $_GET[ 'preview' ] ) )
return true;
if ( isset( $wp_super_cache_late_init ) && true == $wp_super_cache_late_init ) {
if ( isset( $wp_super_cache_debug ) && $wp_super_cache_debug ) wp_cache_debug( "Supercache Late Init: add wp_cache_serve_cache_file to init", 3 );
add_action( 'init', 'wp_cache_late_loader', 9999 );
} else {
wp_super_cache_init();
wp_cache_phase2();
}
}
function wp_cache_late_loader() {
global $wp_super_cache_debug;
if ( isset( $wp_super_cache_debug ) && $wp_super_cache_debug ) wp_cache_debug( "Supercache Late Loader running on init", 3 );
wp_cache_serve_cache_file();
wp_cache_phase2();
}
function wp_cache_get_cookies_values() {
$string = '';
while ($key = key($_COOKIE)) {
if ( preg_match( "/^wp-postpass|^wordpress_logged_in|^comment_author_/", $key ) ) {
if ( isset( $GLOBALS[ 'wp_super_cache_debug' ] ) && $GLOBALS[ 'wp_super_cache_debug' ] ) wp_cache_debug( "Cookie detected: $key", 5 );
$string .= $_COOKIE[ $key ] . ",";
}
next($_COOKIE);
}
reset($_COOKIE);
// If you use this hook, make sure you update your .htaccess rules with the same conditions
$string = do_cacheaction( 'wp_cache_get_cookies_values', $string );
return $string;
}
function add_cacheaction( $action, $func ) {
global $wp_supercache_actions;
$wp_supercache_actions[ $action ][] = $func;
}
function do_cacheaction( $action, $value = '' ) {
global $wp_supercache_actions;
if( is_array( $wp_supercache_actions[ $action ] ) ) {
$actions = $wp_supercache_actions[ $action ];
foreach( $actions as $func ) {
$value = $func( $value );
}
}
return $value;
}
function wp_cache_mobile_group( $user_agent ) {
global $wp_cache_mobile_groups;
foreach( (array)$wp_cache_mobile_groups as $name => $group ) {
foreach( (array)$group as $browser ) {
$browser = trim( strtolower( $browser ) );
if ( $browser != '' && strstr( $user_agent, $browser ) ) {
return $browser;
}
}
}
return "mobile";
}
// From http://wordpress.org/extend/plugins/wordpress-mobile-edition/ by Alex King
function wp_cache_check_mobile( $cache_key ) {
global $wp_cache_mobile_enabled, $wp_cache_mobile_browsers, $wp_cache_mobile_prefixes;
if( !isset( $wp_cache_mobile_enabled ) || false == $wp_cache_mobile_enabled )
return $cache_key;
if (!isset($_SERVER["HTTP_USER_AGENT"])) {
return $cache_key;
}
$browsers = explode( ',', $wp_cache_mobile_browsers );
$user_agent = strtolower( $_SERVER['HTTP_USER_AGENT'] );
foreach ($browsers as $browser) {
if ( strstr( $user_agent, trim( strtolower( $browser ) ) ) ) {
if ( isset( $GLOBALS[ 'wp_super_cache_debug' ] ) && $GLOBALS[ 'wp_super_cache_debug' ] ) wp_cache_debug( "mobile browser detected: " . $_SERVER[ "HTTP_USER_AGENT" ], 5 );
return $cache_key . '-' . wp_cache_mobile_group( $user_agent );
}
}
if (isset($_SERVER['HTTP_X_WAP_PROFILE']) )
return $cache_key . '-' . $_SERVER['HTTP_X_WAP_PROFILE'];
if (isset($_SERVER['HTTP_PROFILE']) )
return $cache_key . '-' . $_SERVER['HTTP_PROFILE'];
if ( isset( $wp_cache_mobile_prefixes ) ) {
$browsers = explode( ',', $wp_cache_mobile_prefixes );
foreach ($browsers as $browser_prefix) {
if ( substr($user_agent, 0, 4) == $browser_prefix ) {
if ( isset( $GLOBALS[ 'wp_super_cache_debug' ] ) && $GLOBALS[ 'wp_super_cache_debug' ] ) wp_cache_debug( "mobile browser (prefix) detected: " . $_SERVER[ "HTTP_USER_AGENT" ], 5 );
return $cache_key . '-' . $browser_prefix;
}
}
}
$accept = strtolower($_SERVER['HTTP_ACCEPT']);
if (strpos($accept, 'wap') !== false) {
return $cache_key . '-' . 'wap';
}
if (isset($_SERVER['ALL_HTTP']) && strpos(strtolower($_SERVER['ALL_HTTP']), 'operamini') !== false) {
return $cache_key . '-' . 'operamini';
}
return $cache_key;
}
function wp_cache_debug( $message, $level = 1 ) {
global $wp_cache_debug_level, $wp_cache_debug_log, $wp_cache_debug_email, $cache_path, $wp_cache_debug_ip, $wp_super_cache_debug;
if ( isset( $wp_super_cache_debug ) && $wp_super_cache_debug == false )
return false;
if ( isset( $wp_cache_debug_email ) == false && isset( $wp_cache_debug_log ) == false )
return false;
if ( isset( $wp_cache_debug_level ) == false )
$wp_cache_debug_level = 1;
if ( $wp_cache_debug_level < $level )
return false;
if ( isset( $wp_cache_debug_ip ) && $wp_cache_debug_ip != '' && $wp_cache_debug_ip != $_SERVER[ 'REMOTE_ADDR' ] )
return false;
if ( isset( $wp_cache_debug_log ) && $wp_cache_debug_log != '' ) {
error_log( date( 'H:i:s' ) . " " . $_SERVER[ 'REQUEST_URI' ] . " " . $message . "\n", 3, $cache_path . str_replace( '/', '', str_replace( '..', '', $wp_cache_debug_log ) ) );
}
if ( isset( $wp_cache_debug_email ) && $wp_cache_debug_email != '' ) {
$message .= "\n\nDisable these emails by commenting out or deleting the line containing\n\$wp_cache_debug_email in wp-content/wp-cache-config.php on your server.\n";
mail( $wp_cache_debug_email, '[' . addslashes( $_SERVER[ 'HTTP_HOST' ] ) . "] WP Super Cache Debug", $message );
}
}
function wp_cache_user_agent_is_rejected() {
global $cache_rejected_user_agent;
if (!function_exists('apache_request_headers')) return false;
$headers = apache_request_headers();
if (!isset($headers["User-Agent"])) return false;
foreach ($cache_rejected_user_agent as $expr) {
if (strlen($expr) > 0 && stristr($headers["User-Agent"], $expr))
return true;
}
return false;
}
function get_current_url_supercache_dir( $post_id = 0 ) {
global $cached_direct_pages, $cache_path, $wp_cache_request_uri;
if ( $post_id != 0 ) {
$uri = str_replace( site_url(), '', get_permalink( $post_id ) );
} else {
$uri = $wp_cache_request_uri;
}
$uri = preg_replace('/[ <>\'\"\r\n\t\(\)]/', '', str_replace( '/index.php', '/', str_replace( '..', '', preg_replace("/(\?.*)?$/", '', $uri ) ) ) );
$uri = str_replace( '\\', '', $uri );
$dir = strtolower(preg_replace('/:.*$/', '', $_SERVER["HTTP_HOST"])) . $uri; // To avoid XSS attacks
if ( function_exists( "apply_filters" ) )
$dir = apply_filters( 'supercache_dir', $dir );
$dir = $cache_path . 'supercache/' . $dir . '/';
if( is_array( $cached_direct_pages ) && in_array( $_SERVER[ 'REQUEST_URI' ], $cached_direct_pages ) ) {
$dir = ABSPATH . $uri . '/';
}
$dir = str_replace( '//', '/', $dir );
if ( isset( $GLOBALS[ 'wp_super_cache_debug' ] ) && $GLOBALS[ 'wp_super_cache_debug' ] ) wp_cache_debug( "supercache dir: $dir", 5 );
return $dir;
}
function get_oc_version() {
$wp_cache_oc_key = wp_cache_get( "wp_cache_oc_key" );
if ( ! $wp_cache_oc_key ) {
$wp_cache_oc_key[ 'key' ] = reset_oc_version();
} elseif ( $wp_cache_oc_key[ 'ts' ] < time() - 600 )
wp_cache_set( "wp_cache_oc_key", array( 'ts' => time(), 'key' => $wp_cache_oc_key[ 'key' ] ) );
return $wp_cache_oc_key[ 'key' ];
}
function reset_oc_version( $version = 1 ) {
if ( $version == 1 )
$version = mt_rand();
wp_cache_set( "wp_cache_oc_key", array( 'ts' => time(), 'key' => $version ) );
return $version;
}
function get_oc_key( $url = false ) {
global $wp_cache_gzip_encoding;
if ( $url ) {
$key = intval( $_SERVER[ 'SERVER_PORT' ] ) . strtolower( preg_replace( '/:.*$/', '', $_SERVER[ "HTTP_HOST" ] ) ) . $url;
} else {
$key = get_current_url_supercache_dir();
}
return $key . $wp_cache_gzip_encoding . get_oc_version();
}
?>