/** * Output buffering callback * * @param string $buffer * @return string */ function ob_callback($buffer) { global $wpdb; if ($buffer != '') { if (w3_is_database_error($buffer)) { status_header(503); } else { if (w3_can_print_comment($buffer)) { /** * Add footer comment */ $date = date_i18n('Y-m-d H:i:s'); $host = !empty($_SERVER['SERVER_NAME']) ? $_SERVER['SERVER_NAME'] : 'localhost'; if (w3_is_preview_mode()) { $buffer .= "\r\n<!-- W3 Total Cache used in preview mode -->"; } if ($this->_config->get_string('common.support') != '' || $this->_config->get_boolean('common.tweeted')) { $buffer .= sprintf("\r\n<!-- Served from: %s @ %s by W3 Total Cache -->", w3_escape_comment($host), $date); } else { $strings = array(); if ($this->_config->get_boolean('minify.enabled') && !$this->_config->get_boolean('minify.debug')) { $w3_plugin_minify = w3_instance('W3_Plugin_Minify'); $strings[] = sprintf(__('Minified using %s%s', 'w3-total-cache'), w3_get_engine_name($this->_config->get_string('minify.engine')), $w3_plugin_minify->minify_reject_reason != '' ? sprintf(' (%s)', $w3_plugin_minify->minify_reject_reason) : ''); } if ($this->_config->get_boolean('pgcache.enabled') && !$this->_config->get_boolean('pgcache.debug')) { $w3_pgcache = w3_instance('W3_PgCache'); $strings[] = sprintf(__('Page Caching using %s%s', 'w3-total-cache'), w3_get_engine_name($this->_config->get_string('pgcache.engine')), $w3_pgcache->cache_reject_reason != '' ? sprintf(' (%s)', $w3_pgcache->cache_reject_reason) : ''); } if ($this->_config->get_boolean('dbcache.enabled') && !$this->_config->get_boolean('dbcache.debug')) { /** * @var W3_DbCache $db */ $db = w3_instance('W3_DbCache'); $append = ($reason = $db->get_reject_reason()) ? sprintf(' (%s)', $reason) : ''; if ($db->query_hits) { $strings[] = sprintf(__('Database Caching %d/%d queries in %.3f seconds using %s%s', 'w3-total-cache'), $db->query_hits, $db->query_total, $db->time_total, w3_get_engine_name($this->_config->get_string('dbcache.engine')), $append); } else { $strings[] = sprintf(__('Database Caching using %s%s', 'w3-total-cache'), w3_get_engine_name($this->_config->get_string('dbcache.engine')), $append); } } if (w3_is_dbcluster()) { $db_cluster = w3_instance('W3_Enterprise_DbCluster'); $strings[] = $db_cluster->status_message(); } if ($this->_config->get_boolean('objectcache.enabled') && !$this->_config->get_boolean('objectcache.debug')) { /** * @var W3_ObjectCache $w3_objectcache */ $w3_objectcache = w3_instance('W3_ObjectCache'); $append = ($reason = $w3_objectcache->get_reject_reason()) ? sprintf(' (%s)', $reason) : ''; $strings[] = sprintf(__('Object Caching %d/%d objects using %s%s', 'w3-total-cache'), $w3_objectcache->cache_hits, $w3_objectcache->cache_total, w3_get_engine_name($this->_config->get_string('objectcache.engine')), $append); } if (w3_is_pro($this->_config) || w3_is_enterprise($this->_config)) { if ($this->_config->get_boolean('fragmentcache.enabled') && !$this->_config->get_boolean('fragmentcache.debug')) { $w3_fragmentcache = w3_instance('W3_Pro_FragmentCache'); $append = $w3_fragmentcache->cache_reject_reason != '' ? sprintf(' (%s)', $w3_fragmentcache->cache_reject_reason) : ''; $strings[] = sprintf(__('Fragment Caching %d/%d fragments using %s%s', 'w3-total-cache'), $w3_fragmentcache->cache_hits, $w3_fragmentcache->cache_total, w3_get_engine_name($this->_config->get_string('fragmentcache.engine')), $append); } } if ($this->_config->get_boolean('cdn.enabled') && !$this->_config->get_boolean('cdn.debug')) { $w3_plugin_cdn = w3_instance('W3_Plugin_Cdn'); $w3_plugin_cdncommon = w3_instance('W3_Plugin_CdnCommon'); $cdn = $w3_plugin_cdncommon->get_cdn(); $via = $cdn->get_via(); $strings[] = sprintf(__('Content Delivery Network via %s%s', 'w3-total-cache'), $via ? $via : 'N/A', $w3_plugin_cdn->cdn_reject_reason != '' ? sprintf(' (%s)', $w3_plugin_cdn->cdn_reject_reason) : ''); } if ($this->_config->get_boolean('newrelic.enabled')) { $w3_newrelic = w3_instance('W3_Plugin_NewRelic'); $append = $w3_newrelic->newrelic_reject_reason != '' ? sprintf(' (%s)', $w3_newrelic->newrelic_reject_reason) : ''; $strings[] = sprintf(__("Application Monitoring using New Relic%s", 'w3-total-cache'), $append); } $buffer .= "\r\n<!-- Performance optimized by W3 Total Cache. Learn more: http://www.w3-edge.com/wordpress-plugins/\r\n"; if (count($strings)) { $buffer .= "\r\n" . implode("\r\n", $strings) . "\r\n"; } $buffer .= sprintf("\r\n Served from: %s @ %s by W3 Total Cache -->", w3_escape_comment($host), $date); } if ($this->is_debugging()) { if ($this->_config->get_boolean('dbcache.enabled') && $this->_config->get_boolean('dbcache.debug')) { $db = w3_instance('W3_DbCache'); $buffer .= "\r\n\r\n" . $db->_get_debug_info(); } if ($this->_config->get_boolean('objectcache.enabled') && $this->_config->get_boolean('objectcache.debug')) { $w3_objectcache = w3_instance('W3_ObjectCache'); $buffer .= "\r\n\r\n" . $w3_objectcache->_get_debug_info(); } if (w3_is_pro($this->_config) || w3_is_enterprise($this->_config)) { if ($this->_config->get_boolean('fragmentcache.enabled') && $this->_config->get_boolean('fragmentcache.debug')) { $w3_fragmentcache = w3_instance('W3_Pro_FragmentCache'); $buffer .= "\r\n\r\n" . $w3_fragmentcache->_get_debug_info(); } } } } $buffer = w3tc_do_ob_callbacks(array('minify', 'newrelic', 'cdn', 'browsercache', 'pagecache'), $buffer); } } return $buffer; }
/** * Returns true if we can minify * * @param string $buffer * @return string */ function can_minify2(&$buffer) { /** * Check for database error */ if (w3_is_database_error($buffer)) { $this->minify_reject_reason = 'Database Error occurred'; return false; } /** * Check for DONOTMINIFY constant */ if (defined('DONOTMINIFY') && DONOTMINIFY) { $this->minify_reject_reason = 'DONOTMINIFY constant is defined'; return false; } /** * Check feed minify */ if ($this->_config->get_boolean('minify.html.reject.feed') && function_exists('is_feed') && is_feed()) { $this->minify_reject_reason = 'Feed is rejected'; return false; } return true; }
/** * Returns true if we can minify * * @param string $buffer * @return string */ function can_minify2(&$buffer) { /** * Check for database error */ if (w3_is_database_error($buffer)) { $this->minify_reject_reason = 'Database Error occurred'; return false; } /** * Check for DONOTMINIFY constant */ if (defined('DONOTMINIFY') && DONOTMINIFY) { $this->minify_reject_reason = 'DONOTMINIFY constant is defined'; return false; } return true; }
/** * Checks if can we do cache logic * * @param string $buffer * @return boolean */ function _can_cache2(&$buffer) { /** * Skip if caching is disabled */ if (!$this->_caching) { return false; } /** * Check for database error */ if (w3_is_database_error($buffer)) { $this->cache_reject_reason = 'Database error occurred'; return false; } /** * Check for DONOTCACHEPAGE constant */ if (defined('DONOTCACHEPAGE') && DONOTCACHEPAGE) { $this->cache_reject_reason = 'DONOTCACHEPAGE constant is defined'; return false; } /** * Check hostname */ if ((!w3_is_multisite() || w3_is_multisite() && !w3_force_master()) && $this->_config->get_boolean('pgcache.check.domain') && w3_get_host() != w3_get_home_domain()) { $this->cache_reject_reason = 'Hostname mismatch'; return false; } /** * Don't cache 404 pages */ if (!$this->_config->get_boolean('pgcache.cache.404') && function_exists('is_404') && is_404()) { $this->cache_reject_reason = 'Page is 404'; return false; } /** * Don't cache homepage */ if (!$this->_config->get_boolean('pgcache.cache.home') && function_exists('is_home') && is_home()) { $this->cache_reject_reason = is_front_page() && is_home() ? 'Page is front page' : 'Page is posts page'; return false; } /** * Don't cache front page */ if ($this->_config->get_boolean('pgcache.reject.front_page') && function_exists('is_front_page') && is_front_page() && !is_home()) { $this->cache_reject_reason = 'Page is front page'; return false; } /** * Don't cache feed */ if (!$this->_config->get_boolean('pgcache.cache.feed') && function_exists('is_feed') && is_feed()) { $this->cache_reject_reason = 'Page is feed'; return false; } /** * Check if page contains dynamic tags */ if ($this->_enhanced_mode && $this->_has_dynamic($buffer)) { $this->cache_reject_reason = 'Page contains dynamic tags (mfunc or mclude) can not be cached in enhanced mode'; return false; } return true; }
/** * Returns true if we can do CDN logic * * @param $buffer * @return string */ function can_cdn2(&$buffer) { /** * Check for database error */ if (w3_is_database_error($buffer)) { $this->cdn_reject_reason = 'Database Error occurred'; return false; } /** * Check for DONOTCDN constant */ if (defined('DONOTCDN') && DONOTCDN) { $this->cdn_reject_reason = 'DONOTCDN constant is defined'; return false; } /** * Check logged in admin */ if ($this->_config->get_boolean('cdn.reject.admins') && current_user_can('manage_options')) { $this->cdn_reject_reason = 'logged in admin is rejected'; return false; } return true; }
/** * Output buffering callback * * @param string $buffer * @return string */ function ob_callback(&$buffer) { global $wpdb; if ($buffer != '' && w3_is_xml($buffer)) { if (w3_is_database_error($buffer)) { @header('HTTP/1.1 503 Service Unavailable'); } else { /** * Replace links for preview mode */ if (w3_is_preview_mode() && isset($_SERVER['HTTP_USER_AGENT']) && $_SERVER['HTTP_USER_AGENT'] != W3TC_POWERED_BY) { $domain_url_regexp = w3_get_domain_url_regexp(); $buffer = preg_replace_callback('~(href|src|action)=([\'"])(' . $domain_url_regexp . ')?(/[^\'"]*)~', array(&$this, 'link_replace_callback'), $buffer); } /** * Add footer comment */ $date = date_i18n('Y-m-d H:i:s'); $host = !empty($_SERVER['SERVER_NAME']) ? $_SERVER['SERVER_NAME'] : 'localhost'; if ($this->is_supported()) { $buffer .= sprintf("\r\n<!-- Served from: %s @ %s by W3 Total Cache -->", w3_escape_comment($host), $date); } else { $strings = array(); if ($this->_config->get_boolean('minify.enabled') && !$this->_config->get_boolean('minify.debug')) { require_once W3TC_LIB_W3_DIR . '/Plugin/Minify.php'; $w3_plugin_minify =& W3_Plugin_Minify::instance(); $strings[] = sprintf("Minified using %s%s", w3_get_engine_name($this->_config->get_string('minify.engine')), $w3_plugin_minify->minify_reject_reason != '' ? sprintf(' (%s)', $w3_plugin_minify->minify_reject_reason) : ''); } if ($this->_config->get_boolean('pgcache.enabled') && !$this->_config->get_boolean('pgcache.debug')) { require_once W3TC_LIB_W3_DIR . '/PgCache.php'; $w3_pgcache =& W3_PgCache::instance(); $strings[] = sprintf("Page Caching using %s%s", w3_get_engine_name($this->_config->get_string('pgcache.engine')), $w3_pgcache->cache_reject_reason != '' ? sprintf(' (%s)', $w3_pgcache->cache_reject_reason) : ''); } if ($this->_config->get_boolean('dbcache.enabled') && !$this->_config->get_boolean('dbcache.debug') && is_a($wpdb, 'W3_Db')) { $append = is_user_logged_in() ? ' (user is logged in)' : ''; if ($wpdb->query_hits) { $strings[] = sprintf("Database Caching %d/%d queries in %.3f seconds using %s%s", $wpdb->query_hits, $wpdb->query_total, $wpdb->time_total, w3_get_engine_name($this->_config->get_string('dbcache.engine')), $append); } else { $strings[] = sprintf("Database Caching using %s%s", w3_get_engine_name($this->_config->get_string('dbcache.engine')), $append); } } if ($this->_config->get_boolean('objectcache.enabled') && !$this->_config->get_boolean('objectcache.debug')) { require_once W3TC_LIB_W3_DIR . '/ObjectCache.php'; $w3_objectcache =& W3_ObjectCache::instance(); $strings[] = sprintf("Object Caching %d/%d objects using %s", $w3_objectcache->cache_hits, $w3_objectcache->cache_total, w3_get_engine_name($this->_config->get_string('objectcache.engine'))); } if ($this->_config->get_boolean('cdn.enabled') && !$this->_config->get_boolean('cdn.debug')) { require_once W3TC_LIB_W3_DIR . '/Plugin/Cdn.php'; $w3_plugin_cdn =& W3_Plugin_Cdn::instance(); $cdn =& $w3_plugin_cdn->get_cdn(); $via = $cdn->get_via(); $strings[] = sprintf("Content Delivery Network via %s%s", $via ? $via : 'N/A', $w3_plugin_cdn->cdn_reject_reason != '' ? sprintf(' (%s)', $w3_plugin_cdn->cdn_reject_reason) : ''); } $buffer .= "\r\n<!-- Performance optimized by W3 Total Cache. Learn more: http://www.w3-edge.com/wordpress-plugins/\r\n"; if (count($strings)) { $buffer .= "\r\n" . implode("\r\n", $strings) . "\r\n"; } $buffer .= sprintf("\r\nServed from: %s @ %s -->", w3_escape_comment($host), $date); } } } return $buffer; }
/** * Returns true if we can do CDN logic * * @param $buffer * @return string */ function can_cdn2(&$buffer) { /** * Check for database error */ if (w3_is_database_error($buffer)) { $this->cdn_reject_reason = 'Database Error occurred'; return false; } /** * Check for DONOTCDN constant */ if (defined('DONOTCDN') && DONOTCDN) { $this->cdn_reject_reason = 'DONOTCDN constant is defined'; return false; } /** * Check logged users roles */ if ($this->_config->get_boolean('cdn.reject.logged_roles') && !$this->_check_logged_in_role_allowed()) { $this->cdn_reject_reason = 'logged in role is rejected'; return false; } return true; }
/** * Checks if can we do cache logic * * @param string $buffer * @return boolean */ function _can_cache2(&$buffer) { /** * Skip if caching is disabled */ if (!$this->_caching) { return false; } /** * Check for request URI trailing slash */ if ($this->_enhanced_mode) { $permalink_structure = get_option('permalink_structure'); $permalink_structure_slash = substr($permalink_structure, -1) == '/'; $request_uri_slash = substr($this->_request_uri, -1) == '/'; if ($permalink_structure_slash != $request_uri_slash) { if ($permalink_structure_slash) { if (!$this->_check_accept_uri()) { $this->cache_reject_reason = 'Requested URI doesn\'t have a trailing slash'; return false; } } else { $this->cache_reject_reason = 'Requested URI has a trailing slash'; return false; } } } /** * Check for database error */ if (w3_is_database_error($buffer)) { $this->cache_reject_reason = 'Database error occurred'; return false; } /** * Check for DONOTCACHEPAGE constant */ if (defined('DONOTCACHEPAGE') && DONOTCACHEPAGE) { $this->cache_reject_reason = 'DONOTCACHEPAGE constant is defined'; return false; } /** * Don't cache 404 pages */ if (!$this->_config->get_boolean('pgcache.cache.404') && function_exists('is_404') && is_404()) { $this->cache_reject_reason = 'Page is 404'; return false; } /** * Don't cache homepage */ if (!$this->_config->get_boolean('pgcache.cache.home') && function_exists('is_home') && is_home()) { $this->cache_reject_reason = 'Page is home'; return false; } /** * Don't cache feed */ if (!$this->_config->get_boolean('pgcache.cache.feed') && function_exists('is_feed') && is_feed()) { $this->cache_reject_reason = 'Page is feed'; return false; } /** * Check if page contains dynamic tags */ if ($this->_enhanced_mode && $this->_has_dynamic($buffer)) { $this->cache_reject_reason = 'Page contains dynamic tags (mfunc or mclude) can not be cached in enhanced mode'; return false; } return true; }
/** * Output buffering callback * * @param string $buffer * @return string */ function ob_callback(&$buffer) { global $wpdb; if ($buffer != '' && w3_is_xml($buffer)) { if (w3_is_database_error($buffer)) { status_header(503); } else { /** * Replace links for preview mode */ if (w3_is_preview_mode() && isset($_SERVER['HTTP_USER_AGENT']) && $_SERVER['HTTP_USER_AGENT'] != W3TC_POWERED_BY) { $domain_url_regexp = w3_get_domain_url_regexp(); $buffer = preg_replace_callback('~(href|src|action)=([\'"])(' . $domain_url_regexp . ')?(/[^\'"]*)~', array(&$this, 'link_replace_callback'), $buffer); } /** * Add footer comment */ $date = date_i18n('Y-m-d H:i:s'); $host = !empty($_SERVER['SERVER_NAME']) ? $_SERVER['SERVER_NAME'] : 'localhost'; if ($this->_config->get_string('common.support') != '' || $this->_config->get_boolean('common.tweeted')) { $buffer .= sprintf("\r\n<!-- Served from: %s @ %s by W3 Total Cache -->", w3_escape_comment($host), $date); } else { $strings = array(); if ($this->_config->get_boolean('minify.enabled') && !$this->_config->get_boolean('minify.debug')) { $w3_plugin_minify = w3_instance('W3_Plugin_Minify'); $strings[] = sprintf("Minified using %s%s", w3_get_engine_name($this->_config->get_string('minify.engine')), $w3_plugin_minify->minify_reject_reason != '' ? sprintf(' (%s)', $w3_plugin_minify->minify_reject_reason) : ''); } if ($this->_config->get_boolean('pgcache.enabled') && !$this->_config->get_boolean('pgcache.debug')) { $w3_pgcache = w3_instance('W3_PgCache'); $strings[] = sprintf("Page Caching using %s%s", w3_get_engine_name($this->_config->get_string('pgcache.engine')), $w3_pgcache->cache_reject_reason != '' ? sprintf(' (%s)', $w3_pgcache->cache_reject_reason) : ''); } if ($this->_config->get_boolean('dbcache.enabled') && !$this->_config->get_boolean('dbcache.debug')) { $db = w3_instance('W3_DbCache'); $append = !is_null($db->cache_reject_reason) ? sprintf(' (%s)', $db->cache_reject_reason) : ''; if ($db->query_hits) { $strings[] = sprintf("Database Caching %d/%d queries in %.3f seconds using %s%s", $db->query_hits, $db->query_total, $db->time_total, w3_get_engine_name($this->_config->get_string('dbcache.engine')), $append); } else { $strings[] = sprintf("Database Caching using %s%s", w3_get_engine_name($this->_config->get_string('dbcache.engine')), $append); } } if (w3_is_dbcluster()) { $db_cluster = w3_instance('W3_Enterprise_DbCluster'); $strings[] = $db_cluster->status_message(); } if ($this->_config->get_boolean('objectcache.enabled') && !$this->_config->get_boolean('objectcache.debug')) { $w3_objectcache = w3_instance('W3_ObjectCache'); $append = $w3_objectcache->cache_reject_reason != '' ? sprintf(' (%s)', $w3_objectcache->cache_reject_reason) : ''; $strings[] = sprintf("Object Caching %d/%d objects using %s%s", $w3_objectcache->cache_hits, $w3_objectcache->cache_total, w3_get_engine_name($this->_config->get_string('objectcache.engine')), $append); } if ($this->_config->get_boolean('fragmentcache.enabled') && !$this->_config->get_boolean('fragmentcache.debug')) { $w3_fragmentcache = w3_instance('W3_Pro_FragmentCache'); $append = $w3_fragmentcache->cache_reject_reason != '' ? sprintf(' (%s)', $w3_fragmentcache->cache_reject_reason) : ''; $strings[] = sprintf("Fragment Caching %d/%d fragments using %s%s", $w3_fragmentcache->cache_hits, $w3_fragmentcache->cache_total, w3_get_engine_name($this->_config->get_string('fragmentcache.engine')), $append); } if ($this->_config->get_boolean('cdn.enabled') && !$this->_config->get_boolean('cdn.debug')) { $w3_plugin_cdn = w3_instance('W3_Plugin_Cdn'); $w3_plugin_cdncommon = w3_instance('W3_Plugin_CdnCommon'); $cdn =& $w3_plugin_cdncommon->get_cdn(); $via = $cdn->get_via(); $strings[] = sprintf("Content Delivery Network via %s%s", $via ? $via : 'N/A', $w3_plugin_cdn->cdn_reject_reason != '' ? sprintf(' (%s)', $w3_plugin_cdn->cdn_reject_reason) : ''); } if ($this->_config->get_boolean('newrelic.enabled')) { $w3_newrelic = w3_instance('W3_Plugin_NewRelic'); $append = $w3_newrelic->newrelic_reject_reason != '' ? sprintf(' (%s)', $w3_newrelic->newrelic_reject_reason) : ''; $strings[] = sprintf(__("Application Monitoring using New Relic%s", 'w3-total-cache'), $append); } $buffer .= "\r\n<!-- Performance optimized by W3 Total Cache. Learn more: http://www.w3-edge.com/wordpress-plugins/\r\n"; if (count($strings)) { $buffer .= "\r\n" . implode("\r\n", $strings) . "\r\n"; } $buffer .= sprintf("\r\n Served from: %s @ %s by W3 Total Cache -->", w3_escape_comment($host), $date); } if ($this->is_debugging()) { if ($this->_config->get_boolean('dbcache.enabled') && $this->_config->get_boolean('dbcache.debug')) { $db = w3_instance('W3_DbCache'); $buffer .= "\r\n\r\n" . $db->_get_debug_info(); } if ($this->_config->get_boolean('objectcache.enabled') && $this->_config->get_boolean('objectcache.debug')) { $w3_objectcache = w3_instance('W3_ObjectCache'); $buffer .= "\r\n\r\n" . $w3_objectcache->_get_debug_info(); } if ($this->_config->get_boolean('fragmentcache.enabled') && $this->_config->get_boolean('fragmentcache.debug')) { $w3_fragmentcache = w3_instance('W3_Pro_FragmentCache'); $buffer .= "\r\n\r\n" . $w3_fragmentcache->_get_debug_info(); } } } } return $buffer; }