function super_cache_invalidate() { //Now, we are actually using the referrer and not the request, with some precautions $GLOBALS['wp_cache_request_uri'] = substr($_SERVER['HTTP_REFERER'], stripos($_SERVER['HTTP_REFERER'], $_SERVER['HTTP_HOST']) + strlen($_SERVER[''] . $_SERVER['HTTP_HOST'])); $GLOBALS['wp_cache_request_uri'] = preg_replace('/[ <>\'\\"\\r\\n\\t\\(\\)]/', '', str_replace('/index.php', '/', str_replace('..', '', preg_replace("/(\\?.*)?\$/", '', $GLOBALS['wp_cache_request_uri'])))); // get some supercache variables extract(wp_super_cache_init()); tp_logger(wp_super_cache_init()); // this is hackery for logged in users, a cookie is added to the request somehow and gzip is not correctly set, so we forcefully fix this if (!$cache_file) { $GLOBALS['wp_cache_gzip_encoding'] = gzip_accepted(); unset($_COOKIE[key($_COOKIE)]); extract(wp_super_cache_init()); tp_logger(wp_super_cache_init()); } $dir = get_current_url_supercache_dir(); // delete possible files that we can figure out, not deleting files for other cookies for example, but will do the trick in most cases $cache_fname = "{$dir}index.html"; tp_logger("attempting delete of supercache: {$cache_fname}"); @unlink($cache_fname); $cache_fname = "{$dir}index.html.gz"; tp_logger("attempting delete of supercache: {$cache_fname}"); @unlink($cache_fname); tp_logger("attempting delete of wp_cache: {$cache_file}"); @unlink($cache_file); tp_logger("attempting delete of wp_cache_meta: {$meta_pathname}"); @unlink($meta_pathname); // go at edit pages too $GLOBALS['wp_cache_request_uri'] .= "?edit=1"; extract(wp_super_cache_init()); tp_logger(wp_super_cache_init()); tp_logger("attempting delete of edit_wp_cache: {$cache_file}"); @unlink($cache_file); tp_logger("attempting delete of edit_wp_cache_meta: {$meta_pathname}"); @unlink($meta_pathname); }
function wp_cache_get_ob(&$buffer) { global $cache_path, $cache_filename, $meta_file, $wp_start_time, $supercachedir; global $new_cache, $wp_cache_meta, $file_expired, $blog_id, $cache_compression; global $wp_cache_gzip_encoding, $super_cache_enabled, $cached_direct_pages; global $wp_cache_404, $gzsize, $supercacheonly, $wp_cache_gzip_first, $wp_cache_gmt_offset; global $blog_cache_dir, $wp_cache_request_uri, $wp_supercache_cache_list; $new_cache = true; $wp_cache_meta = ''; /* Mode paranoic, check for closing tags * we avoid caching incomplete files */ if ($buffer == '') { $new_cache = false; if (isset($GLOBALS['wp_super_cache_debug']) && $GLOBALS['wp_super_cache_debug']) { wp_cache_debug("Buffer is blank. Output buffer may have been corrupted by another plugin or this is a redirected URL. Look for text 'ob_start' in the files of your plugins directory.", 2); $buffer .= "\n<!-- Page not cached by WP Super Cache. Blank Page. Check output buffer usage by plugins. -->\n"; } } if ($wp_cache_404 && false == apply_filters('wpsupercache_404', false)) { $new_cache = false; if (isset($GLOBALS['wp_super_cache_debug']) && $GLOBALS['wp_super_cache_debug']) { wp_cache_debug("404 file not found not cached", 2); $buffer .= "\n<!-- Page not cached by WP Super Cache. 404. -->\n"; } } if (!preg_match('/(<\\/html>|<\\/rss>|<\\/feed>)/i', $buffer)) { $new_cache = false; if (false === strpos($_SERVER['REQUEST_URI'], 'robots.txt')) { if (isset($GLOBALS['wp_super_cache_debug']) && $GLOBALS['wp_super_cache_debug']) { wp_cache_debug("No closing html tag. Not caching.", 2); $buffer .= "\n<!-- Page not cached by WP Super Cache. No closing HTML tag. Check your theme. -->\n"; } } else { if (isset($GLOBALS['wp_super_cache_debug']) && $GLOBALS['wp_super_cache_debug']) { wp_cache_debug("robots.txt detected. Not caching.", 2); } } } if (!$new_cache) { return $buffer; } $duration = wp_cache_microtime_diff($wp_start_time, microtime()); $duration = sprintf("%0.3f", $duration); $buffer .= "\n<!-- Dynamic page generated in {$duration} seconds. -->\n"; if (!wp_cache_writers_entry()) { $buffer .= "\n<!-- Page not cached by WP Super Cache. Could not get mutex lock. -->\n"; if (isset($GLOBALS['wp_super_cache_debug']) && $GLOBALS['wp_super_cache_debug']) { wp_cache_debug("Could not get mutex lock. Not caching.", 1); } return $buffer; } $dir = get_current_url_supercache_dir(); $supercachedir = $cache_path . 'supercache/' . preg_replace('/:.*$/', '', $_SERVER["HTTP_HOST"]); if (!empty($_GET) || is_feed() || $super_cache_enabled == true && is_dir(substr($supercachedir, 0, -1) . '.disabled')) { if (isset($GLOBALS['wp_super_cache_debug']) && $GLOBALS['wp_super_cache_debug']) { wp_cache_debug("Supercache disabled: GET or feed detected or disabled by config.", 2); } $super_cache_enabled = false; } $tmp_wpcache_filename = $cache_path . uniqid(mt_rand(), true) . '.tmp'; // Don't create wp-cache files for anon users $supercacheonly = false; if ($super_cache_enabled && wp_cache_get_cookies_values() == '') { if (isset($GLOBALS['wp_super_cache_debug']) && $GLOBALS['wp_super_cache_debug']) { wp_cache_debug("Anonymous user detected. Only creating Supercache file.", 3); } $supercacheonly = true; } if (!$supercacheonly) { if (!@file_exists($blog_cache_dir . $cache_filename) || @file_exists($blog_cache_dir . $cache_filename) && time() - @filemtime($blog_cache_dir . $cache_filename) > 5) { $fr = @fopen($tmp_wpcache_filename, 'w'); if (!$fr) { if (isset($GLOBALS['wp_super_cache_debug']) && $GLOBALS['wp_super_cache_debug']) { wp_cache_debug("Error. Supercache could not write to " . str_replace(ABSPATH, '', $cache_path) . $cache_filename, 1); } $buffer .= "<!-- File not cached! Super Cache Couldn't write to: " . str_replace(ABSPATH, '', $cache_path) . $cache_filename . " -->\n"; return $buffer; } } } if ($super_cache_enabled) { $user_info = wp_cache_get_cookies_values(); $do_cache = apply_filters('do_createsupercache', $user_info); if ($user_info == '' || $do_cache === true) { if (@is_dir($dir) == false) { @wp_mkdir_p($dir); } $cache_fname = "{$dir}index.html"; $tmp_cache_filename = $dir . uniqid(mt_rand(), true) . '.tmp'; if (!@file_exists($cache_fname) || @file_exists($cache_fname) && time() - @filemtime($cache_fname) > 5) { $fr2 = @fopen($tmp_cache_filename, 'w'); if (!$fr2) { if (isset($GLOBALS['wp_super_cache_debug']) && $GLOBALS['wp_super_cache_debug']) { wp_cache_debug("Error. Supercache could not write to " . str_replace(ABSPATH, '', $tmp_cache_filename), 1); } $buffer .= "<!-- File not cached! Super Cache Couldn't write to: " . str_replace(ABSPATH, '', $tmp_cache_filename) . " -->\n"; @fclose($fr); @unlink($tmp_wpcache_filename); return $buffer; } elseif ($cache_compression) { $gz = @fopen($tmp_cache_filename . ".gz", 'w'); if (!$gz) { if (isset($GLOBALS['wp_super_cache_debug']) && $GLOBALS['wp_super_cache_debug']) { wp_cache_debug("Error. Supercache could not write to " . str_replace(ABSPATH, '', $tmp_cache_filename) . ".gz", 1); } $buffer .= "<!-- File not cached! Super Cache Couldn't write to: " . str_replace(ABSPATH, '', $tmp_cache_filename) . ".gz -->\n"; @fclose($fr); @unlink($tmp_wpcache_filename); @fclose($fr2); @unlink($tmp_cache_filename); return $buffer; } } } } } if (preg_match('/<!--mclude|<!--mfunc/', $buffer)) { //Dynamic content if (isset($GLOBALS['wp_super_cache_debug']) && $GLOBALS['wp_super_cache_debug']) { wp_cache_debug("Dynamic content found in buffer.", 4); } $store = preg_replace('|<!--mclude (.*?)-->(.*?)<!--/mclude-->|is', "<!--mclude-->\n<?php include_once('" . ABSPATH . "\$1'); ?>\n<!--/mclude-->", $buffer); $store = preg_replace('|<!--mfunc (.*?)-->(.*?)<!--/mfunc-->|is', "<!--mfunc-->\n<?php \$1 ;?>\n<!--/mfunc-->", $store); $store = apply_filters('wpsupercache_buffer', $store); $wp_cache_meta['dynamic'] = true; /* Clean function calls in tag */ $buffer = preg_replace('|<!--mclude (.*?)-->|is', '<!--mclude-->', $buffer); $buffer = preg_replace('|<!--mfunc (.*?)-->|is', '<!--mfunc-->', $buffer); if ($fr) { fputs($fr, $store); } if ($fr2) { fputs($fr2, $store . '<!-- super cache -->'); } if ($gz) { fputs($gz, gzencode($store . '<!-- super cache gz -->', 1, FORCE_GZIP)); } } else { $buffer = apply_filters('wpsupercache_buffer', $buffer); $buffer .= "<!-- Cached page generated by WP-Super-Cache on " . gmdate('Y-m-d H:i:s', time() + $wp_cache_gmt_offset * 3600) . " -->\n"; if ($gz || $wp_cache_gzip_encoding) { if (isset($GLOBALS['wp_super_cache_debug']) && $GLOBALS['wp_super_cache_debug']) { wp_cache_debug("Gzipping buffer.", 5); } $gzdata = gzencode($buffer . "<!-- Compression = gzip -->", 3, FORCE_GZIP); $gzsize = strlen($gzdata); } if ($wp_cache_gzip_encoding) { $wp_cache_meta['headers']['Content-Encoding'] = 'Content-Encoding: ' . $wp_cache_gzip_encoding; $wp_cache_meta['headers']['Vary'] = 'Vary: Accept-Encoding, Cookie'; // Return uncompressed data & store compressed for later use if ($fr) { if (isset($GLOBALS['wp_super_cache_debug']) && $GLOBALS['wp_super_cache_debug']) { wp_cache_debug("Writing gzipped buffer to wp-cache cache file.", 5); } fputs($fr, $gzdata); } } else { // no compression $wp_cache_meta['headers']['Vary'] = 'Vary: Cookie'; if ($fr) { if (isset($GLOBALS['wp_super_cache_debug']) && $GLOBALS['wp_super_cache_debug']) { wp_cache_debug("Writing non-gzipped buffer to wp-cache cache file.", 5); } fputs($fr, $buffer); } } if ($fr2) { if (isset($GLOBALS['wp_super_cache_debug']) && $GLOBALS['wp_super_cache_debug']) { wp_cache_debug("Writing non-gzipped buffer to supercache file.", 5); } fputs($fr2, $buffer . '<!-- super cache -->'); } if ($gz) { if (isset($GLOBALS['wp_super_cache_debug']) && $GLOBALS['wp_super_cache_debug']) { wp_cache_debug("Writing gzipped buffer to supercache file.", 5); } fwrite($gz, $gzdata); } $buffer .= $log; } $new_cache = true; $added_cache = 0; if ($fr) { $supercacheonly = false; fclose($fr); if (!rename($tmp_wpcache_filename, $blog_cache_dir . $cache_filename)) { unlink($blog_cache_dir . $cache_filename); rename($tmp_wpcache_filename, $blog_cache_dir . $cache_filename); } if (isset($GLOBALS['wp_super_cache_debug']) && $GLOBALS['wp_super_cache_debug']) { wp_cache_debug("Renamed temp wp-cache file to {$blog_cache_dir}{$cache_filename}", 5); } $added_cache = 1; } if ($fr2) { fclose($fr2); if (!@rename($tmp_cache_filename, $cache_fname)) { @unlink($cache_fname); @rename($tmp_cache_filename, $cache_fname); } if (isset($GLOBALS['wp_super_cache_debug']) && $GLOBALS['wp_super_cache_debug']) { wp_cache_debug("Renamed temp supercache file to {$cache_fname}", 5); } $added_cache = 1; } if ($gz) { fclose($gz); if (!@rename($tmp_cache_filename . '.gz', $cache_fname . '.gz')) { @unlink($cache_fname . '.gz'); @rename($tmp_cache_filename . '.gz', $cache_fname . '.gz'); } if (isset($GLOBALS['wp_super_cache_debug']) && $GLOBALS['wp_super_cache_debug']) { wp_cache_debug("Renamed temp supercache gz file to {$cache_fname}.gz", 5); } $added_cache = 1; } if ($added_cache && isset($wp_supercache_cache_list) && $wp_supercache_cache_list) { update_option('wpsupercache_count', get_option('wpsupercache_count') + 1); $last_urls = (array) get_option('supercache_last_cached'); if (count($last_urls) >= 10) { $last_urls = array_slice($last_urls, 1, 9); } $last_urls[] = array('url' => $_SERVER['REQUEST_URI'], 'date' => date('Y-m-d H:i:s')); update_option('supercache_last_cached', $last_urls); } wp_cache_writers_exit(); if (!headers_sent() && isset($wp_cache_gzip_first) && 1 == $wp_cache_gzip_first && $wp_cache_gzip_encoding && $gzdata) { if (isset($GLOBALS['wp_super_cache_debug']) && $GLOBALS['wp_super_cache_debug']) { wp_cache_debug("Writing gzip content headers. Sending buffer to browser", 5); } header('Content-Encoding: ' . $wp_cache_gzip_encoding); header('Vary: Accept-Encoding, Cookie'); header('Content-Length: ' . $gzsize); return $gzdata; } else { if (isset($GLOBALS['wp_super_cache_debug']) && $GLOBALS['wp_super_cache_debug']) { wp_cache_debug("Sending buffer to browser", 5); } return $buffer; } }
function wp_cache_get_ob(&$buffer) { global $cache_path, $cache_filename, $meta_file, $wp_start_time, $supercachedir; global $new_cache, $wp_cache_meta, $file_expired, $blog_id, $cache_compression; global $wp_cache_gzip_encoding, $super_cache_enabled, $cached_direct_pages; global $wp_cache_404, $gzsize, $supercacheonly, $wp_cache_gzip_first, $wp_cache_gmt_offset; global $blog_cache_dir; $new_cache = true; $wp_cache_meta = ''; /* Mode paranoic, check for closing tags * we avoid caching incomplete files */ if ($wp_cache_404) { $new_cache = false; $buffer .= "\n<!-- Page not cached by WP Super Cache. 404. -->\n"; } if (!preg_match('/(<\\/html>|<\\/rss>|<\\/feed>)/i', $buffer)) { $new_cache = false; if (false === strpos($_SERVER['REQUEST_URI'], 'robots.txt')) { $buffer .= "\n<!-- Page not cached by WP Super Cache. No closing HTML tag. Check your theme. -->\n"; } } if (!$new_cache) { return $buffer; } $duration = wp_cache_microtime_diff($wp_start_time, microtime()); $duration = sprintf("%0.3f", $duration); $buffer .= "\n<!-- Dynamic page generated in {$duration} seconds. -->\n"; if (!wp_cache_writers_entry()) { $buffer .= "\n<!-- Page not cached by WP Super Cache. Could not get mutex lock. -->\n"; return $buffer; } $mtime = @filemtime($blog_cache_dir . $cache_filename); /* Return if: the file didn't exist before but it does exist now (another connection created) OR the file was expired and its mtime is less than 5 seconds */ if (!(!$file_expired && $mtime || $mtime && $file_expired && time() - $mtime < 5)) { $dir = get_current_url_supercache_dir(); $supercachedir = $cache_path . 'supercache/' . preg_replace('/:.*$/', '', $_SERVER["HTTP_HOST"]); if (!empty($_GET) || is_feed() || $super_cache_enabled == true && is_dir(substr($supercachedir, 0, -1) . '.disabled')) { $super_cache_enabled = false; } $tmp_wpcache_filename = $cache_path . uniqid(mt_rand(), true) . '.tmp'; // Don't create wp-cache files for anon users $supercacheonly = false; if ($super_cache_enabled && wp_cache_get_cookies_values() == '') { $supercacheonly = true; } if (!$supercacheonly) { $fr = @fopen($tmp_wpcache_filename, 'w'); if (!$fr) { $buffer .= "<!-- File not cached! Super Cache Couldn't write to: " . str_replace(ABSPATH, '', $cache_path) . $cache_filename . " -->\n"; return $buffer; } } if ($super_cache_enabled) { $user_info = wp_cache_get_cookies_values(); $do_cache = apply_filters('do_createsupercache', $user_info); if ($user_info == '' || $do_cache === true) { if (@is_dir($dir) == false) { @wp_mkdir_p($dir); } $cache_fname = "{$dir}index.html"; $tmp_cache_filename = $dir . uniqid(mt_rand(), true) . '.tmp'; $fr2 = @fopen($tmp_cache_filename, 'w'); if (!$fr2) { $buffer .= "<!-- File not cached! Super Cache Couldn't write to: " . str_replace(ABSPATH, '', $tmp_cache_filename) . " -->\n"; @fclose($fr); @nlink($tmp_wpcache_filename); return $buffer; } if ($cache_compression) { $gz = @fopen($tmp_cache_filename . ".gz", 'w'); if (!$gz) { $buffer .= "<!-- File not cached! Super Cache Couldn't write to: " . str_replace(ABSPATH, '', $tmp_cache_filename) . ".gz -->\n"; @close($fr); @nlink($tmp_wpcache_filename); @close($fr2); @nlink($tmp_cache_filename); return $buffer; } } } } if (preg_match('/<!--mclude|<!--mfunc/', $buffer)) { //Dynamic content $store = preg_replace('|<!--mclude (.*?)-->(.*?)<!--/mclude-->|is', "<!--mclude-->\n<?php include_once('" . ABSPATH . "\$1'); ?>\n<!--/mclude-->", $buffer); $store = preg_replace('|<!--mfunc (.*?)-->(.*?)<!--/mfunc-->|is', "<!--mfunc-->\n<?php \$1 ;?>\n<!--/mfunc-->", $store); $store = apply_filters('wpsupercache_buffer', $store); $wp_cache_meta['dynamic'] = true; /* Clean function calls in tag */ $buffer = preg_replace('|<!--mclude (.*?)-->|is', '<!--mclude-->', $buffer); $buffer = preg_replace('|<!--mfunc (.*?)-->|is', '<!--mfunc-->', $buffer); if ($fr) { fputs($fr, $store); } if ($fr2) { fputs($fr2, $store . '<!-- super cache -->'); } if ($gz) { fputs($gz, gzencode($store . '<!-- super cache gz -->', 1, FORCE_GZIP)); } } else { $buffer = apply_filters('wpsupercache_buffer', $buffer); $buffer .= "<!-- Cached page generated by WP-Super-Cache on " . gmdate('Y-m-d H:i:s', time() + $wp_cache_gmt_offset * 3600) . " -->\n"; if ($gz || $wp_cache_gzip_encoding) { $gzdata = gzencode($buffer . "<!-- Compression = gzip -->", 3, FORCE_GZIP); $gzsize = strlen($gzdata); } if ($wp_cache_gzip_encoding) { $wp_cache_meta['headers']['Content-Encoding'] = 'Content-Encoding: ' . $wp_cache_gzip_encoding; $wp_cache_meta['headers']['Vary'] = 'Vary: Accept-Encoding, Cookie'; // Return uncompressed data & store compressed for later use if ($fr) { fputs($fr, $gzdata); } } else { // no compression $wp_cache_meta['headers']['Vary'] = 'Vary: Cookie'; if ($fr) { fputs($fr, $buffer); } } if ($fr2) { fputs($fr2, $buffer . '<!-- super cache -->'); } if ($gz) { fwrite($gz, $gzdata); } $buffer .= $log; } $new_cache = true; if ($fr) { $supercacheonly = false; fclose($fr); if (!rename($tmp_wpcache_filename, $blog_cache_dir . $cache_filename)) { unlink($blog_cache_dir . $cache_filename); rename($tmp_wpcache_filename, $blog_cache_dir . $cache_filename); } } if ($fr2) { fclose($fr2); if (!@rename($tmp_cache_filename, $cache_fname)) { @unlink($cache_fname); @rename($tmp_cache_filename, $cache_fname); } } if ($gz) { fclose($gz); if (!@rename($tmp_cache_filename . '.gz', $cache_fname . '.gz')) { @unlink($cache_fname . '.gz'); @rename($tmp_cache_filename . '.gz', $cache_fname . '.gz'); } } } wp_cache_writers_exit(); if (!headers_sent() && isset($wp_cache_gzip_first) && 1 == $wp_cache_gzip_first && $wp_cache_gzip_encoding && $gzdata) { header('Content-Encoding: ' . $wp_cache_gzip_encoding); header('Vary: Accept-Encoding, Cookie'); header('Content-Length: ' . $gzsize); return $gzdata; } else { return $buffer; } }
function clear_post_supercache($post_id) { $dir = get_current_url_supercache_dir($post_id); if (false == @is_dir($dir)) { return false; } if (!function_exists('prune_super_cache')) { include_once 'wp-cache-phase2.php'; } prune_super_cache($dir, true); }
function get_oc_key($url = false) { global $wp_cache_gzip_encoding, $WPSC_HTTP_HOST; if ($url) { $key = intval($_SERVER['SERVER_PORT']) . strtolower(preg_replace('/:.*$/', '', $WPSC_HTTP_HOST)) . $url; } else { $key = get_current_url_supercache_dir(); } return $key . $wp_cache_gzip_encoding . get_oc_version(); }
function clear_post_supercache($post_id) { $dir = get_current_url_supercache_dir($post_id); if (file_exists($dir . 'index.html')) { unlink($dir . 'index.html'); } if (file_exists($dir . 'index.html.gz')) { unlink($dir . 'index.html.gz'); } }
function clear_post_supercache($post_id) { $dir = get_current_url_supercache_dir($post_id); if (false == @is_dir($dir)) { return false; } if (!function_exists('prune_super_cache')) { include_once 'wp-cache-phase2.php'; } wp_cache_debug("clear_post_supercache: deleting {$dir}/index*.html files", 2); $files_to_check = get_all_supercache_filenames($dir); foreach ($files_to_check as $cache_file) { prune_super_cache($dir . $cache_file, true); } }
function wp_cache_post_id_gc($siteurl, $post_id, $all = 'all') { global $cache_path, $wp_cache_object_cache; if ($wp_cache_object_cache) { reset_oc_version(); } $post_id = intval($post_id); if ($post_id == 0) { return; } $permalink = trailingslashit(str_replace(get_option('home'), '', post_permalink($post_id))); $dir = get_current_url_supercache_dir($post_id); if (isset($GLOBALS['wp_super_cache_debug']) && $GLOBALS['wp_super_cache_debug']) { wp_cache_debug("wp_cache_post_id_gc post_id: {$post_id} " . post_permalink($post_id) . " clearing cache in {$dir}.", 4); } if ($all == 'all') { prune_super_cache($dir, true, true); do_action('gc_cache', 'prune', $permalink); @rmdir($dir); } else { if (isset($GLOBALS['wp_super_cache_debug']) && $GLOBALS['wp_super_cache_debug']) { wp_cache_debug("wp_cache_post_id_gc clearing cached index files in {$dir}.", 4); } prune_super_cache($dir, true, true); do_action('gc_cache', 'prune', $permalink); } if (isset($GLOBALS['wp_super_cache_debug']) && $GLOBALS['wp_super_cache_debug']) { wp_cache_debug("wp_cache_post_id_gc clearing cache in {$dir}page/.", 4); } prune_super_cache($dir . 'page/', true); do_action('gc_cache', 'prune', '/page/'); }
function wp_cache_get_ob(&$buffer) { global $wpsc_settings; global $cache_enabled, $cache_path, $cache_filename, $meta_file, $wp_start_time, $supercachedir; global $new_cache, $wp_cache_meta, $file_expired, $blog_id, $cache_compression; global $wp_cache_gzip_encoding, $super_cache_enabled, $cached_direct_pages; global $wp_cache_404, $gzsize, $supercacheonly; global $blog_cache_dir, $wp_cache_request_uri, $wp_supercache_cache_list; global $wp_cache_not_logged_in, $wp_cache_object_cache, $cache_max_time; global $wp_cache_is_home, $wp_cache_front_page_checks; $new_cache = true; $wp_cache_meta = ''; /* Mode paranoic, check for closing tags * we avoid caching incomplete files */ if ($buffer == '') { $new_cache = false; if (isset($GLOBALS['wp_super_cache_debug']) && $GLOBALS['wp_super_cache_debug']) { wp_cache_debug("Buffer is blank. Output buffer may have been corrupted by another plugin or this is a redirected URL. Look for text 'ob_start' in the files of your plugins directory.", 2); $buffer .= "\n<!-- Page not cached by WP Super Cache. Blank Page. Check output buffer usage by plugins. -->\n"; } } if ($wp_cache_404 && false == apply_filters('wpsupercache_404', false)) { $new_cache = false; if (isset($GLOBALS['wp_super_cache_debug']) && $GLOBALS['wp_super_cache_debug']) { wp_cache_debug("404 file not found not cached", 2); $buffer .= "\n<!-- Page not cached by WP Super Cache. 404. -->\n"; } } if (!preg_match('/(<\\/html>|<\\/rss>|<\\/feed>|<\\/urlset)/i', $buffer)) { $new_cache = false; if (false === strpos($_SERVER['REQUEST_URI'], 'robots.txt')) { if (isset($GLOBALS['wp_super_cache_debug']) && $GLOBALS['wp_super_cache_debug']) { wp_cache_debug("No closing html tag. Not caching.", 2); $buffer .= "\n<!-- Page not cached by WP Super Cache. No closing HTML tag. Check your theme. -->\n"; } } else { if (isset($GLOBALS['wp_super_cache_debug']) && $GLOBALS['wp_super_cache_debug']) { wp_cache_debug("robots.txt detected. Not caching.", 2); } } } if (!$new_cache) { return $buffer; } $duration = wp_cache_microtime_diff($wp_start_time, microtime()); $duration = sprintf("%0.3f", $duration); $buffer .= "\n<!-- Dynamic page generated in {$duration} seconds. -->\n"; if (!wp_cache_writers_entry()) { $buffer .= "\n<!-- Page not cached by WP Super Cache. Could not get mutex lock. -->\n"; if (isset($GLOBALS['wp_super_cache_debug']) && $GLOBALS['wp_super_cache_debug']) { wp_cache_debug("Could not get mutex lock. Not caching.", 1); } return $buffer; } if ($wp_cache_not_logged_in && is_feed()) { if (isset($GLOBALS['wp_super_cache_debug']) && $GLOBALS['wp_super_cache_debug']) { wp_cache_debug("Feed detected. Writing legacy cache files.", 5); } $wp_cache_not_logged_in = false; } $home_url = parse_url(trailingslashit(get_bloginfo('url'))); $dir = get_current_url_supercache_dir(); $supercachedir = $cache_path . 'supercache/' . preg_replace('/:.*$/', '', $home_url['host']); if (!empty($_GET) || is_feed() || $super_cache_enabled == true && is_dir(substr($supercachedir, 0, -1) . '.disabled')) { if (isset($GLOBALS['wp_super_cache_debug']) && $GLOBALS['wp_super_cache_debug']) { wp_cache_debug("Supercache disabled: GET or feed detected or disabled by config.", 2); } $super_cache_enabled = false; } $tmp_wpcache_filename = $cache_path . uniqid(mt_rand(), true) . '.tmp'; $supercacheonly = false; if ($super_cache_enabled) { if (wp_cache_get_cookies_values() == '') { if (isset($GLOBALS['wp_super_cache_debug']) && $GLOBALS['wp_super_cache_debug']) { wp_cache_debug("Anonymous user detected. Only creating Supercache file.", 3); } $supercacheonly = true; } } if ($wp_cache_not_logged_in && wp_cache_get_cookies_values() != '') { $super_cache_enabled = false; $cache_enabled = false; if (isset($GLOBALS['wp_super_cache_debug']) && $GLOBALS['wp_super_cache_debug']) { wp_cache_debug('Not caching for known user.', 5); } } if ($wp_cache_object_cache) { // half on mode when using the object cache if (wp_cache_get_cookies_values() != '') { $cache_enabled = false; } $super_cache_enabled = false; $supercacheonly = false; wp_cache_init(); // PHP5 destroys objects during shutdown } if (!$cache_enabled) { if (isset($GLOBALS['wp_super_cache_debug']) && $GLOBALS['wp_super_cache_debug']) { wp_cache_debug('', 5); } wp_cache_writers_exit(); return $buffer . "\n<!-- Page not cached by WP Super Cache. Check your settings page. -->"; } if (@is_dir($dir) == false) { @wp_mkdir_p($dir); } $fr = $fr2 = $gz = false; // Open wp-cache cache file if (!$supercacheonly) { if (false == $wp_cache_object_cache) { $fr = @fopen($tmp_wpcache_filename, 'w'); if (!$fr) { if (isset($GLOBALS['wp_super_cache_debug']) && $GLOBALS['wp_super_cache_debug']) { wp_cache_debug("Error. Supercache could not write to " . str_replace(ABSPATH, '', $cache_path) . $cache_filename, 1); } $buffer .= "<!-- File not cached! Super Cache Couldn't write to: " . str_replace(ABSPATH, '', $cache_path) . $cache_filename . " -->\n"; wp_cache_writers_exit(); return $buffer; } } } else { $user_info = wp_cache_get_cookies_values(); $do_cache = apply_filters('do_createsupercache', $user_info); if ($super_cache_enabled && ($user_info == '' || $do_cache === true)) { $cache_fname = "{$dir}index.html"; $tmp_cache_filename = $dir . uniqid(mt_rand(), true) . '.tmp'; $fr2 = @fopen($tmp_cache_filename, 'w'); if (!$fr2) { if (isset($GLOBALS['wp_super_cache_debug']) && $GLOBALS['wp_super_cache_debug']) { wp_cache_debug("Error. Supercache could not write to " . str_replace(ABSPATH, '', $tmp_cache_filename), 1); } $buffer .= "<!-- File not cached! Super Cache Couldn't write to: " . str_replace(ABSPATH, '', $tmp_cache_filename) . " -->\n"; @fclose($fr); @unlink($tmp_wpcache_filename); wp_cache_writers_exit(); return $buffer; } elseif ($cache_compression) { $gz = @fopen($tmp_cache_filename . ".gz", 'w'); if (!$gz) { if (isset($GLOBALS['wp_super_cache_debug']) && $GLOBALS['wp_super_cache_debug']) { wp_cache_debug("Error. Supercache could not write to " . str_replace(ABSPATH, '', $tmp_cache_filename) . ".gz", 1); } $buffer .= "<!-- File not cached! Super Cache Couldn't write to: " . str_replace(ABSPATH, '', $tmp_cache_filename) . ".gz -->\n"; @fclose($fr); @unlink($tmp_wpcache_filename); @fclose($fr2); @unlink($tmp_cache_filename); wp_cache_writers_exit(); return $buffer; } } } } $added_cache = 0; $oc_key = get_oc_key(); if (preg_match('/<!--mclude|<!--mfunc|<!--dynamic-cached-content-->/', $buffer)) { //Dynamic content if (isset($GLOBALS['wp_super_cache_debug']) && $GLOBALS['wp_super_cache_debug']) { wp_cache_debug("Dynamic content found in buffer.", 4); } $store = preg_replace('|<!--mclude (.*?)-->(.*?)<!--/mclude-->|is', "<!--mclude-->\n<?php include_once('" . ABSPATH . "\$1'); ?>\n<!--/mclude-->", $buffer); $store = preg_replace('|<!--mfunc (.*?)-->(.*?)<!--/mfunc-->|is', "<!--mfunc-->\n<?php \$1 ;?>\n<!--/mfunc-->", $store); $store = preg_replace('|<!--dynamic-cached-content-->(.*?)<!--(.*?)--><!--/dynamic-cached-content-->|is', "<!--dynamic-cached-content-->\n<?php\$2?>\n<!--/dynamic-cached-content-->", $store); $wp_cache_meta['dynamic'] = true; /* Clean function calls in tag */ $buffer = preg_replace('|<!--mclude (.*?)-->|is', '<!--mclude-->', $buffer); $buffer = preg_replace('|<!--mfunc (.*?)-->|is', '<!--mfunc-->', $buffer); $buffer = preg_replace('|<!--dynamic-cached-content-->(.*?)<!--(.*?)--><!--/dynamic-cached-content-->|is', "<!--dynamic-cached-content-->\$1<!--/dynamic-cached-content-->", $buffer); $store = apply_filters('wpsupercache_buffer', $store); // Append WP Super Cache or Live page comment tag wp_cache_append_tag($buffer); wp_cache_append_tag($store); global $wp_super_cache_late_init; if (false == isset($wp_super_cache_late_init) || isset($wp_super_cache_late_init) && $wp_super_cache_late_init == 0) { $buffer .= '<!-- Super Cache dynamic page detected but $wp_super_cache_late_init not set. See the readme.txt for further details. -->'; } if (false == $wp_cache_object_cache) { if ($fr) { // legacy caching fputs($fr, $store); } elseif (isset($fr2)) { // supercache active $php_fname = "{$dir}index.html.php"; $tmp_php_filename = $dir . uniqid(mt_rand(), true) . '.tmp'; $php_fd = @fopen($tmp_php_filename, 'w'); if (!$php_fd) { if (isset($GLOBALS['wp_super_cache_debug']) && $GLOBALS['wp_super_cache_debug']) { wp_cache_debug("Error. Supercache could not write to " . str_replace(ABSPATH, '', $tmp_php_filename), 1); } $buffer .= "<!-- File not cached! Super Cache couldn't write to: " . str_replace(ABSPATH, '', $tmp_php_filename) . " -->\n"; @fclose($php_fd); @unlink($tmp_php_filename); wp_cache_writers_exit(); return $buffer; } fputs($php_fd, $store); } } else { wp_cache_set($oc_key, $store, 'supercache', $cache_max_time); } if ($cache_compression && $wp_cache_gzip_encoding) { if (isset($GLOBALS['wp_super_cache_debug']) && $GLOBALS['wp_super_cache_debug']) { wp_cache_debug("Gzipping dynamic buffer.", 5); } $gzdata = gzencode($buffer . "<!-- Compression = gzip -->", 6, FORCE_GZIP); $gzsize = strlen($gzdata); } } else { $buffer = apply_filters('wpsupercache_buffer', $buffer); // Append WP Super Cache or Live page comment tag wp_cache_append_tag($buffer); if ($gz || $wp_cache_gzip_encoding) { if (isset($GLOBALS['wp_super_cache_debug']) && $GLOBALS['wp_super_cache_debug']) { wp_cache_debug("Gzipping buffer.", 5); } $gzdata = gzencode($buffer . "<!-- Compression = gzip -->", 6, FORCE_GZIP); $gzsize = strlen($gzdata); } if ($wp_cache_gzip_encoding) { $wp_cache_meta['headers']['Content-Encoding'] = 'Content-Encoding: ' . $wp_cache_gzip_encoding; $wp_cache_meta['headers']['Vary'] = 'Vary: Accept-Encoding, Cookie'; // Return uncompressed data & store compressed for later use if (false == $wp_cache_object_cache) { if ($fr) { if (isset($GLOBALS['wp_super_cache_debug']) && $GLOBALS['wp_super_cache_debug']) { wp_cache_debug("Writing gzipped buffer to wp-cache cache file.", 5); } fputs($fr, $gzdata); } } elseif ($cache_enabled) { wp_cache_set($oc_key . ".gz", $gzdata, 'supercache', $cache_max_time); $added_cache = 1; } } else { // no compression $wp_cache_meta['headers']['Vary'] = 'Vary: Cookie'; if (false == $wp_cache_object_cache) { if ($fr) { if (isset($GLOBALS['wp_super_cache_debug']) && $GLOBALS['wp_super_cache_debug']) { wp_cache_debug("Writing non-gzipped buffer to wp-cache cache file.", 5); } fputs($fr, $buffer); } } elseif ($cache_enabled) { wp_cache_set($oc_key, $buffer, 'supercache', $cache_max_time); $added_cache = 1; } } if (false == $wp_cache_object_cache) { if ($fr2) { if (isset($GLOBALS['wp_super_cache_debug']) && $GLOBALS['wp_super_cache_debug']) { wp_cache_debug("Writing non-gzipped buffer to supercache file.", 5); } fputs($fr2, $buffer . '<!-- super cache -->'); } if ($gz) { if (isset($GLOBALS['wp_super_cache_debug']) && $GLOBALS['wp_super_cache_debug']) { wp_cache_debug("Writing gzipped buffer to supercache file.", 5); } fwrite($gz, $gzdata); } } } $new_cache = true; if (false == $wp_cache_object_cache) { if ($fr) { $supercacheonly = false; fclose($fr); if (filesize($tmp_wpcache_filename) == 0) { if (isset($GLOBALS['wp_super_cache_debug']) && $GLOBALS['wp_super_cache_debug']) { wp_cache_debug("Warning! The file {$tmp_wpcache_filename} was empty. Did not rename to {$blog_cache_dir}{$cache_filename}", 5); } @unlink($tmp_wpcache_filename); } else { if (!rename($tmp_wpcache_filename, $blog_cache_dir . $cache_filename)) { unlink($blog_cache_dir . $cache_filename); rename($tmp_wpcache_filename, $blog_cache_dir . $cache_filename); } if (isset($GLOBALS['wp_super_cache_debug']) && $GLOBALS['wp_super_cache_debug']) { wp_cache_debug("Renamed temp wp-cache file to {$blog_cache_dir}{$cache_filename}", 5); } $added_cache = 1; } } if ($fr2) { fclose($fr2); if ($wp_cache_front_page_checks && $cache_fname == $supercachedir . $home_url['path'] . 'index.html' && !$wp_cache_is_home) { wp_cache_writers_exit(); if (isset($GLOBALS['wp_super_cache_debug']) && $GLOBALS['wp_super_cache_debug']) { wp_cache_debug("Warning! Not writing another page to front page cache.", 1); } return $buffer; } elseif (filesize($tmp_cache_filename) == 0) { if (isset($GLOBALS['wp_super_cache_debug']) && $GLOBALS['wp_super_cache_debug']) { wp_cache_debug("Warning! The file {$tmp_cache_filename} was empty. Did not rename to {$cache_fname}", 5); } @unlink($tmp_cache_filename); } else { if (!@rename($tmp_cache_filename, $cache_fname)) { @unlink($cache_fname); @rename($tmp_cache_filename, $cache_fname); } if (isset($GLOBALS['wp_super_cache_debug']) && $GLOBALS['wp_super_cache_debug']) { wp_cache_debug("Renamed temp supercache file to {$cache_fname}", 5); } $added_cache = 1; } } if ($php_fd) { fclose($php_fd); if ($php_fname == $supercachedir . $home_url['path'] . 'index.html.php' && !$wp_cache_is_home) { wp_cache_writers_exit(); if (isset($GLOBALS['wp_super_cache_debug']) && $GLOBALS['wp_super_cache_debug']) { wp_cache_debug("Warning! Not writing another page to front page cache.", 1); } return $buffer; } elseif (filesize($tmp_php_filename) == 0) { if (isset($GLOBALS['wp_super_cache_debug']) && $GLOBALS['wp_super_cache_debug']) { wp_cache_debug("Warning! The file {$tmp_php_filename} was empty. Did not rename to {$php_fname}", 5); } @unlink($tmp_php_filename); } else { if (!@rename($tmp_php_filename, $php_fname)) { @unlink($php_fname); @rename($tmp_php_filename, $php_fname); } if (isset($GLOBALS['wp_super_cache_debug']) && $GLOBALS['wp_super_cache_debug']) { wp_cache_debug("Renamed temp supercache file to {$php_fname}", 5); } $added_cache = 1; } } if ($gz) { fclose($gz); if (filesize($tmp_cache_filename . '.gz') == 0) { if (isset($GLOBALS['wp_super_cache_debug']) && $GLOBALS['wp_super_cache_debug']) { wp_cache_debug("Warning! The file {$tmp_cache_filename}.gz was empty. Did not rename to {$cache_fname}.gz", 5); } @unlink($tmp_cache_filename . '.gz'); } else { if (!@rename($tmp_cache_filename . '.gz', $cache_fname . '.gz')) { @unlink($cache_fname . '.gz'); @rename($tmp_cache_filename . '.gz', $cache_fname . '.gz'); } if (isset($GLOBALS['wp_super_cache_debug']) && $GLOBALS['wp_super_cache_debug']) { wp_cache_debug("Renamed temp supercache gz file to {$cache_fname}.gz", 5); } $added_cache = 1; } } } if ($added_cache && isset($wp_supercache_cache_list) && $wp_supercache_cache_list) { update_option('wpsupercache_count', get_option('wpsupercache_count') + 1); $last_urls = (array) get_option('supercache_last_cached'); if (count($last_urls) >= 10) { $last_urls = array_slice($last_urls, 1, 9); } $last_urls[] = array('url' => $_SERVER['REQUEST_URI'], 'date' => date('Y-m-d H:i:s')); update_option('supercache_last_cached', $last_urls); } wp_cache_writers_exit(); if (!headers_sent() && $wp_cache_gzip_encoding && $gzdata) { if (isset($GLOBALS['wp_super_cache_debug']) && $GLOBALS['wp_super_cache_debug']) { wp_cache_debug("Writing gzip content headers. Sending buffer to browser", 5); } header('Content-Encoding: ' . $wp_cache_gzip_encoding); header('Vary: Accept-Encoding, Cookie'); header('Content-Length: ' . $gzsize); return $gzdata; } else { if (isset($GLOBALS['wp_super_cache_debug']) && $GLOBALS['wp_super_cache_debug']) { wp_cache_debug("Sending buffer to browser", 5); } return $buffer; } }
function wp_cache_ob_callback($buffer) { global $cache_path, $cache_filename, $meta_file, $wp_start_time, $supercachedir; global $new_cache, $wp_cache_meta_object, $file_expired, $blog_id, $cache_compression; global $wp_cache_gzip_encoding, $super_cache_enabled, $cached_direct_pages; global $wp_cache_404, $gzsize; $new_cache = true; /* Mode paranoic, check for closing tags * we avoid caching incomplete files */ if ($wp_cache_404) { $new_cache = false; $buffer .= "\n<!-- Page not cached by WP Super Cache. 404. -->\n"; } if (!preg_match('/(<\\/html>|<\\/rss>|<\\/feed>)/i', $buffer)) { $new_cache = false; $buffer .= "\n<!-- Page not cached by WP Super Cache. No closing HTML tag. Check your theme. -->\n"; } if (!$new_cache) { return $buffer; } $duration = wp_cache_microtime_diff($wp_start_time, microtime()); $duration = sprintf("%0.3f", $duration); $buffer .= "\n<!-- Dynamic Page Served (once) in {$duration} seconds -->\n"; if (!wp_cache_writers_entry()) { $buffer .= "\n<!-- Page not cached by WP Super Cache. Could not get mutex lock. -->\n"; return $buffer; } $mtime = @filemtime($cache_path . $cache_filename); /* Return if: the file didn't exist before but it does exist now (another connection created) OR the file was expired and its mtime is less than 5 seconds */ if (!(!$file_expired && $mtime || $mtime && $file_expired && time() - $mtime < 5)) { $dir = get_current_url_supercache_dir(); $supercachedir = $cache_path . 'supercache/' . preg_replace('/:.*$/', '', $_SERVER["HTTP_HOST"]); if (!empty($_GET) || is_feed() || $super_cache_enabled == true && is_dir(substr($supercachedir, 0, -1) . '.disabled')) { $super_cache_enabled = false; } $tmp_wpcache_filename = tempnam($cache_path, "wp-cache"); $fr = @fopen($tmp_wpcache_filename, 'w'); if (!$fr) { $buffer .= "<!-- File not cached! Super Cache Couldn't write to: " . str_replace(ABSPATH, '', $cache_path) . $cache_filename . " -->\n"; return $buffer; } if ($super_cache_enabled) { if (@is_dir($dir) == false) { @wp_mkdir_p($dir); } $user_info = wp_cache_get_cookies_values(); $do_cache = apply_filters('do_createsupercache', $user_info); if ($user_info == '' || $do_cache === true) { $cache_fname = "{$dir}index.html"; $tmp_cache_filename = tempnam($dir, "wpsupercache"); $fr2 = @fopen($tmp_cache_filename, 'w'); if ($cache_compression) { $gz = @fopen($tmp_cache_filename . ".gz", 'w'); } } } if (preg_match('/<!--mclude|<!--mfunc/', $buffer)) { //Dynamic content $store = preg_replace('|<!--mclude (.*?)-->(.*?)<!--/mclude-->|is', "<!--mclude-->\n<?php include_once('" . ABSPATH . "\$1'); ?>\n<!--/mclude-->", $buffer); $store = preg_replace('|<!--mfunc (.*?)-->(.*?)<!--/mfunc-->|is', "<!--mfunc-->\n<?php \$1 ;?>\n<!--/mfunc-->", $store); $store = apply_filters('wpsupercache_buffer', $store); $wp_cache_meta_object->dynamic = true; /* Clean function calls in tag */ $buffer = preg_replace('|<!--mclude (.*?)-->|is', '<!--mclude-->', $buffer); $buffer = preg_replace('|<!--mfunc (.*?)-->|is', '<!--mfunc-->', $buffer); fputs($fr, $store); if ($fr2) { fputs($fr2, $store . '<!-- super cache -->'); } if ($gz) { fputs($gz, gzencode($store . '<!-- super cache gz -->', 1, FORCE_GZIP)); } } else { $buffer = apply_filters('wpsupercache_buffer', $buffer); $log = "<!-- Cached page served by WP-Super-Cache -->\n"; if ($gz || $wp_cache_gzip_encoding) { $gzdata = gzencode($buffer . $log . "<!-- Compression = gzip -->", 3, FORCE_GZIP); $gzsize = strlen($gzdata); } if ($wp_cache_gzip_encoding) { array_push($wp_cache_meta_object->headers, 'Content-Encoding: ' . $wp_cache_gzip_encoding); array_push($wp_cache_meta_object->headers, 'Vary: Accept-Encoding, Cookie'); array_push($wp_cache_meta_object->headers, 'Content-Length: ' . strlen($gzdata)); // Return uncompressed data & store compressed for later use fputs($fr, $gzdata); } else { // no compression array_push($wp_cache_meta_object->headers, 'Vary: Cookie'); fputs($fr, $buffer . $log); } if ($fr2) { fputs($fr2, $buffer . '<!-- super cache -->'); } if ($gz) { fwrite($gz, $gzdata); } } $new_cache = true; fclose($fr); @chmod($tmp_wpcache_filename, 0666 & ~umask()); if (!@rename($tmp_wpcache_filename, $cache_path . $cache_filename)) { unlink($cache_path . $cache_filename); rename($tmp_wpcache_filename, $cache_path . $cache_filename); } if ($fr2) { fclose($fr2); @chmod($tmp_cache_filename, 0666 & ~umask()); if (!@rename($tmp_cache_filename, $cache_fname)) { unlink($cache_fname); rename($tmp_cache_filename, $cache_fname); } } if ($gz) { fclose($gz); if (!@rename($tmp_cache_filename . '.gz', $cache_fname . '.gz')) { unlink($cache_fname . '.gz'); rename($tmp_cache_filename . '.gz', $cache_fname . '.gz'); } } } wp_cache_writers_exit(); return $buffer; }
function get_oc_key($url = false) { global $wp_cache_gzip_encoding; if ($url) { $key = strtolower(preg_replace('/:.*$/', '', $_SERVER["HTTP_HOST"])) . $url; } else { $key = get_current_url_supercache_dir(); } return $key . $wp_cache_gzip_encoding . get_oc_version(); }
function wp_cache_post_id_gc($siteurl, $post_id, $all = 'all') { global $cache_path, $wp_cache_object_cache, $wp_cache_refresh_single_only; if ($wp_cache_object_cache) { reset_oc_version(); } $post_id = intval($post_id); if ($post_id == 0) { return; } $permalink = trailingslashit(str_replace(get_option('home'), '', get_permalink($post_id))); $dir = get_current_url_supercache_dir($post_id); wp_cache_debug("wp_cache_post_id_gc post_id: {$post_id} " . get_permalink($post_id) . " clearing cache in {$dir}.", 4); if ($all == 'all') { prune_super_cache($dir, true, true); do_action('gc_cache', 'prune', $permalink); @rmdir($dir); } else { wp_cache_debug("wp_cache_post_id_gc clearing cached index files in {$dir}.", 4); prune_super_cache($dir, true, true); do_action('gc_cache', 'prune', $permalink); } wp_cache_debug("wp_cache_post_id_gc clearing cache in {$dir}/page/.", 4); prune_super_cache($dir . '/page/', true); $supercache_home = get_supercache_dir(); wp_cache_debug("wp_cache_post_id_gc clearing cache in {$supercache_home}/page/.", 4); prune_super_cache($supercache_home . '/page/', true); do_action('gc_cache', 'prune', '/page/'); }