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< ? php
namespace W3TC ;
/**
* W3 Total Cache plugin
*/
class Generic_Plugin {
private $is_wp_die = false ;
private $_translations = array ();
private $_config = null ;
function __construct () {
$this -> _config = Dispatcher :: config ();
}
/**
* Runs plugin
*/
function run () {
add_filter ( 'cron_schedules' , array ( $this , 'cron_schedules' ), 5 );
/* need this to run before wp-cron to issue w3tc redirect */
add_action ( 'init' , array ( $this , 'init' ), 1 );
if ( Util_Environment :: is_w3tc_pro_dev () && Util_Environment :: is_w3tc_pro ( $this -> _config ) ) {
add_action ( 'wp_footer' , array ( $this , 'pro_dev_mode' ) );
}
add_action ( 'admin_bar_menu' , array ( $this , 'admin_bar_menu' ), 150 );
add_action ( 'admin_bar_init' , array ( $this , 'admin_bar_init' ) );
$http_user_agent = isset ( $_SERVER [ 'HTTP_USER_AGENT' ] ) ? sanitize_text_field ( wp_unslash ( $_SERVER [ 'HTTP_USER_AGENT' ] ) ) : '' ;
if ( ! empty ( Util_Request :: get_string ( 'w3tc_theme' ) ) && stristr ( $http_user_agent , W3TC_POWERED_BY ) !== false ) {
add_filter ( 'template' , array ( $this , 'template_preview' ) );
add_filter ( 'stylesheet' , array ( $this , 'stylesheet_preview' ) );
} elseif ( $this -> _config -> get_boolean ( 'mobile.enabled' ) || $this -> _config -> get_boolean ( 'referrer.enabled' ) ) {
add_filter ( 'template' , array ( $this , 'template' ) );
add_filter ( 'stylesheet' , array ( $this , 'stylesheet' ) );
}
/**
* Create cookies to flag if a pgcache role was loggedin
*/
if ( ! $this -> _config -> get_boolean ( 'pgcache.reject.logged' ) && $this -> _config -> get_array ( 'pgcache.reject.logged_roles' ) ) {
add_action ( 'set_logged_in_cookie' , array ( $this , 'check_login_action' ), 0 , 5 );
add_action ( 'clear_auth_cookie' , array ( $this , 'check_login_action' ), 0 , 5 );
}
if ( $this -> can_ob () ) {
add_filter ( 'wp_die_xml_handler' , array ( $this , 'wp_die_handler' ) );
add_filter ( 'wp_die_handler' , array ( $this , 'wp_die_handler' ) );
ob_start ( array ( $this , 'ob_callback' ) );
}
}
/**
* Marks wp_die was called so response is system message
**/
public function wp_die_handler ( $v ) {
$this -> is_wp_die = true ;
return $v ;
}
/**
* Cron schedules filter
*
* @ param array $schedules
* @ return array
*/
function cron_schedules ( $schedules ) {
// Sets default values which are overriden by apropriate plugins
// if they are enabled
//
// absense of keys (if e.g. pgcaching became disabled, but there is
// cron event scheduled in db) causes PHP notices.
return array_merge (
$schedules ,
array (
'w3_cdn_cron_queue_process' => array (
'interval' => 0 ,
'display' => '[W3TC] CDN queue process (disabled)' ,
),
'w3_cdn_cron_upload' => array (
'interval' => 0 ,
'display' => '[W3TC] CDN auto upload (disabled)' ,
),
'w3_dbcache_cleanup' => array (
'interval' => 0 ,
'display' => '[W3TC] Database Cache file GC (disabled)' ,
),
'w3_fragmentcache_cleanup' => array (
'interval' => 0 ,
'display' => '[W3TC] Fragment Cache file GC (disabled)' ,
),
'w3_minify_cleanup' => array (
'interval' => 0 ,
'display' => '[W3TC] Minify file GC (disabled)' ,
),
'w3_objectcache_cleanup' => array (
'interval' => 0 ,
'display' => '[W3TC] Object Cache file GC (disabled)' ,
),
'w3_pgcache_cleanup' => array (
'interval' => 0 ,
'display' => '[W3TC] Page Cache file GC (disabled)' ,
),
'w3_pgcache_prime' => array (
'interval' => 0 ,
'display' => '[W3TC] Page Cache file GC (disabled)' ,
),
)
);
}
/**
* Init action
*
* @ return void
*/
function init () {
// Load W3TC textdomain for translations.
$this -> reset_l10n ();
load_plugin_textdomain ( W3TC_TEXT_DOMAIN , false , dirname ( plugin_basename ( __FILE__ ) ) . '/languages' );
if ( is_multisite () && ! is_network_admin () ) {
global $w3_current_blog_id , $current_blog ;
if ( $w3_current_blog_id !== $current_blog -> blog_id && ! isset ( $GLOBALS [ 'w3tc_blogmap_register_new_item' ] ) ) {
$url = Util_Environment :: host_port () . ( isset ( $_SERVER [ 'REQUEST_URI' ] ) ? esc_url_raw ( wp_unslash ( $_SERVER [ 'REQUEST_URI' ] ) ) : '' );
$pos = strpos ( $url , '?' );
if ( false !== $pos ) {
$url = substr ( $url , 0 , $pos );
}
$GLOBALS [ 'w3tc_blogmap_register_new_item' ] = $url ;
}
}
if ( isset ( $GLOBALS [ 'w3tc_blogmap_register_new_item' ] ) ) {
$do_redirect = Util_WpmuBlogmap :: register_new_item ( $this -> _config );
// reset cache of blog_id.
Util_Environment :: reset_microcache ();
Dispatcher :: reset_config ();
// change config to actual blog, it was master before.
$this -> _config = new Config ();
// fix environment, potentially it's first request to a specific blog.
$environment = Dispatcher :: component ( 'Root_Environment' );
$environment -> fix_on_event ( $this -> _config , 'first_frontend' , $this -> _config );
// need to repeat request processing, since we was not able to realize
// blog_id before so we are running with master config now.
// redirect to the same url causes "redirect loop" error in browser,
// so need to redirect to something a bit different.
if ( $do_redirect ) {
if ( ( defined ( 'WP_CLI' ) && WP_CLI ) || php_sapi_name () === 'cli' ) {
// command-line mode, no real requests made,
// try to switch context in-request.
} else {
$request_uri = isset ( $_SERVER [ 'REQUEST_URI' ] ) ? esc_url_raw ( wp_unslash ( $_SERVER [ 'REQUEST_URI' ] ) ) : '' ;
if ( strpos ( $request_uri , '?' ) === false ) {
Util_Environment :: safe_redirect_temp ( $request_uri . '?repeat=w3tc' );
} else {
if ( strpos ( $request_uri , 'repeat=w3tc' ) === false ) {
Util_Environment :: safe_redirect_temp ( $request_uri . '&repeat=w3tc' );
}
}
}
}
}
/**
* Check for rewrite test request
*/
$rewrite_test = Util_Request :: get_boolean ( 'w3tc_rewrite_test' );
if ( $rewrite_test ) {
echo 'OK' ;
exit ();
}
$admin_bar = false ;
if ( function_exists ( 'is_admin_bar_showing' ) ) {
$admin_bar = is_admin_bar_showing ();
}
if ( $admin_bar ) {
add_action ( 'wp_print_scripts' , array ( $this , 'popup_script' ) );
}
// dont add system stuff to search results.
$repeat_val = Util_Request :: get_string ( 'repeat' );
if ( ( ! empty ( $repeat_val ) && 'w3tc' === $repeat_val ) || Util_Environment :: is_preview_mode () ) {
header ( 'X-Robots-Tag: noindex' );
}
}
public function admin_bar_init () {
$font_base = plugins_url ( 'pub/fonts/w3tc' , W3TC_FILE );
$css = "
@ font - face {
font - family : 'w3tc' ;
src : url ( '$font_base.eot' );
src : url ( '$font_base.eot?#iefix' ) format ( 'embedded-opentype' ),
url ( '$font_base.woff' ) format ( 'woff' ),
url ( '$font_base.ttf' ) format ( 'truetype' ),
url ( '$font_base.svg#w3tc' ) format ( 'svg' );
font - weight : normal ;
font - style : normal ;
}
. w3tc - icon : before {
content : '\\0041' ; top : 2 px ;
font - family : 'w3tc' ;
} " ;
wp_add_inline_style ( 'admin-bar' , $css );
}
/**
* Admin bar menu
*
* @ return void
*/
function admin_bar_menu () {
global $wp_admin_bar ;
$base_capability = apply_filters ( 'w3tc_capability_admin_bar' , 'manage_options' );
if ( current_user_can ( $base_capability ) ) {
$modules = Dispatcher :: component ( 'ModuleStatus' );
$menu_items = array ();
$menu_items [ '00010.generic' ] = array (
'id' => 'w3tc' ,
'title' => sprintf (
'<span class="w3tc-icon ab-icon"></span><span class="ab-label">%s</span>' ,
__ ( 'Performance' , 'w3-total-cache' )
),
'href' => wp_nonce_url (
network_admin_url ( 'admin.php?page=w3tc_dashboard' ),
'w3tc'
),
);
if ( $modules -> plugin_is_enabled () ) {
$menu_items [ '10010.generic' ] = array (
'id' => 'w3tc_flush_all' ,
'parent' => 'w3tc' ,
'title' => __ ( 'Purge All Caches' , 'w3-total-cache' ),
'href' => wp_nonce_url (
network_admin_url ( 'admin.php?page=w3tc_dashboard&w3tc_flush_all' ),
'w3tc'
),
);
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if (
! empty ( $this -> _config -> get_string ( array ( 'cloudflare' , 'email' ) ) )
&& ! empty ( $this -> _config -> get_string ( array ( 'cloudflare' , 'key' ) ) )
&& (
$modules -> can_empty_memcache ()
|| $modules -> can_empty_opcode ()
|| $modules -> can_empty_file ()
|| $modules -> can_empty_varnish ()
)
) {
$menu_items [ '10015.generic' ] = array (
'id' => 'w3tc_flush_all_except_cf' ,
'parent' => 'w3tc' ,
'title' => __ ( 'Purge All Caches Except CloudFlare' , 'w3-total-cache' ),
'href' => wp_nonce_url (
network_admin_url ( 'admin.php?page=w3tc_dashboard&w3tc_cloudflare_flush_all_except_cf' ),
'w3tc'
),
);
}
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if ( ! is_admin () ) {
$menu_items [ '10020.generic' ] = array (
'id' => 'w3tc_flush_current_page' ,
'parent' => 'w3tc' ,
'title' => __ ( 'Purge Current Page' , 'w3-total-cache' ),
'href' => wp_nonce_url (
admin_url ( 'admin.php?page=w3tc_dashboard&w3tc_flush_post&post_id=' . Util_Environment :: detect_post_id () . '&force=true' ),
'w3tc'
),
);
}
$menu_items [ '20010.generic' ] = array (
'id' => 'w3tc_flush' ,
'parent' => 'w3tc' ,
'title' => __ ( 'Purge Modules' , 'w3-total-cache' ),
);
}
$menu_items [ '30000.generic' ] = array (
'id' => 'w3tc_feature_showcase' ,
'parent' => 'w3tc' ,
'title' => __ ( 'Feature Showcase' , 'w3-total-cache' ),
'href' => wp_nonce_url (
network_admin_url ( 'admin.php?page=w3tc_feature_showcase' ),
'w3tc'
),
);
$menu_items [ '40010.generic' ] = array (
'id' => 'w3tc_settings_general' ,
'parent' => 'w3tc' ,
'title' => __ ( 'General Settings' , 'w3-total-cache' ),
'href' => wp_nonce_url (
network_admin_url ( 'admin.php?page=w3tc_general' ),
'w3tc'
),
);
$menu_items [ '40020.generic' ] = array (
'id' => 'w3tc_settings_extensions' ,
'parent' => 'w3tc' ,
'title' => __ ( 'Manage Extensions' , 'w3-total-cache' ),
'href' => wp_nonce_url (
network_admin_url ( 'admin.php?page=w3tc_extensions' ),
'w3tc'
),
);
$menu_items [ '40030.generic' ] = array (
'id' => 'w3tc_settings_faq' ,
'parent' => 'w3tc' ,
'title' => __ ( 'FAQ' , 'w3-total-cache' ),
'href' => wp_nonce_url (
network_admin_url ( 'admin.php?page=w3tc_faq' ),
'w3tc'
),
);
$menu_items [ '60010.generic' ] = array (
'id' => 'w3tc_support' ,
'parent' => 'w3tc' ,
'title' => __ ( 'Support' , 'w3-total-cache' ),
'href' => wp_nonce_url (
network_admin_url ( 'admin.php?page=w3tc_support' ),
'w3tc'
),
);
if ( defined ( 'W3TC_DEBUG' ) && W3TC_DEBUG ) {
$menu_items [ '90010.generic' ] = array (
'id' => 'w3tc_debug_overlays' ,
'parent' => 'w3tc' ,
'title' => __ ( 'Debug: Overlays' , 'w3-total-cache' ),
);
$menu_items [ '90020.generic' ] = array (
'id' => 'w3tc_overlay_support_us' ,
'parent' => 'w3tc_debug_overlays' ,
'title' => __ ( 'Support Us' , 'w3-total-cache' ),
'href' => wp_nonce_url (
network_admin_url ( 'admin.php?page=w3tc_dashboard&w3tc_message_action=generic_support_us' ),
'w3tc'
),
);
}
$menu_items = apply_filters ( 'w3tc_admin_bar_menu' , $menu_items );
$keys = array_keys ( $menu_items );
asort ( $keys );
foreach ( $keys as $key ) {
$capability = apply_filters (
'w3tc_capability_admin_bar_' . $menu_items [ $key ][ 'id' ],
$base_capability
);
if ( current_user_can ( $capability ) ) {
$wp_admin_bar -> add_menu ( $menu_items [ $key ] );
}
}
}
}
/**
* Template filter
*
* @ param unknown $template
* @ return string
*/
function template ( $template ) {
$w3_mobile = Dispatcher :: component ( 'Mobile_UserAgent' );
$mobile_template = $w3_mobile -> get_template ();
if ( $mobile_template ) {
return $mobile_template ;
} else {
$w3_referrer = Dispatcher :: component ( 'Mobile_Referrer' );
$referrer_template = $w3_referrer -> get_template ();
if ( $referrer_template ) {
return $referrer_template ;
}
}
return $template ;
}
/**
* Stylesheet filter
*
* @ param unknown $stylesheet
* @ return string
*/
function stylesheet ( $stylesheet ) {
$w3_mobile = Dispatcher :: component ( 'Mobile_UserAgent' );
$mobile_stylesheet = $w3_mobile -> get_stylesheet ();
if ( $mobile_stylesheet ) {
return $mobile_stylesheet ;
} else {
$w3_referrer = Dispatcher :: component ( 'Mobile_Referrer' );
$referrer_stylesheet = $w3_referrer -> get_stylesheet ();
if ( $referrer_stylesheet ) {
return $referrer_stylesheet ;
}
}
return $stylesheet ;
}
/**
* Template filter
*
* @ param unknown $template
* @ return string
*/
function template_preview ( $template ) {
$theme_name = Util_Request :: get_string ( 'w3tc_theme' );
$theme = Util_Theme :: get ( $theme_name );
if ( $theme ) {
return $theme [ 'Template' ];
}
return $template ;
}
/**
* Stylesheet filter
*
* @ param unknown $stylesheet
* @ return string
*/
function stylesheet_preview ( $stylesheet ) {
$theme_name = Util_Request :: get_string ( 'w3tc_theme' );
$theme = Util_Theme :: get ( $theme_name );
if ( $theme ) {
return $theme [ 'Stylesheet' ];
}
return $stylesheet ;
}
/**
* Output buffering callback
*
* @ param string $buffer
* @ return string
*/
function ob_callback ( $buffer ) {
global $wpdb ;
global $w3_late_caching_succeeded ;
if ( $w3_late_caching_succeeded ) {
return $buffer ;
}
if ( $this -> is_wp_die && ! apply_filters ( 'w3tc_process_wp_die' , false , $buffer ) ) {
// wp_die is dynamic output (usually fatal errors), dont process it
} else {
$buffer = apply_filters ( 'w3tc_process_content' , $buffer );
if ( Util_Content :: can_print_comment ( $buffer ) ) {
/**
* Add footer comment
*/
$date = date_i18n ( 'Y-m-d H:i:s' );
$host = ( ! empty ( $_SERVER [ 'SERVER_NAME' ] ) ? sanitize_text_field ( wp_unslash ( $_SERVER [ 'SERVER_NAME' ] ) ) : 'localhost' );
if ( Util_Environment :: is_preview_mode () ) {
$buffer .= " \r \n <!-- W3 Total Cache used in preview mode --> " ;
}
$strings = array ();
if ( ! $this -> _config -> get_boolean ( 'common.tweeted' ) ) {
$strings [] = 'Performance optimized by W3 Total Cache. Learn more: https://www.boldgrid.com/w3-total-cache/' ;
$strings [] = '' ;
}
$strings = apply_filters ( 'w3tc_footer_comment' , $strings );
if ( count ( $strings ) ) {
$strings [] = '' ;
$strings [] = sprintf (
'Served from: %1$s @ %2$s by W3 Total Cache' ,
Util_Content :: escape_comment ( $host ),
$date
);
$buffer .= " \r \n <!-- \r \n " .
Util_Content :: escape_comment ( implode ( " \r \n " , $strings ) ) .
" \r \n --> " ;
}
}
$buffer = Util_Bus :: do_ob_callbacks (
array (
'swarmify' ,
'lazyload' ,
'minify' ,
'newrelic' ,
'cdn' ,
'browsercache' ,
'pagecache' ,
),
$buffer
);
$buffer = apply_filters ( 'w3tc_processed_content' , $buffer );
}
return $buffer ;
}
/**
* Check if we can do modify contents
*
* @ return boolean
*/
function can_ob () {
global $w3_late_init ;
if ( $w3_late_init ) {
return false ;
}
/**
* Skip if doing AJAX
*/
if ( defined ( 'DOING_AJAX' ) ) {
return false ;
}
/**
* Skip if doing cron
*/
if ( defined ( 'DOING_CRON' ) ) {
return false ;
}
/**
* Skip if APP request
*/
if ( defined ( 'APP_REQUEST' ) ) {
return false ;
}
/**
* Skip if XMLRPC request
*/
if ( defined ( 'XMLRPC_REQUEST' ) ) {
return false ;
}
/**
* Check for WPMU 's and WP' s 3.0 short init
*/
if ( defined ( 'SHORTINIT' ) && SHORTINIT ) {
return false ;
}
/**
* Check User Agent
*/
$http_user_agent = isset ( $_SERVER [ 'HTTP_USER_AGENT' ] ) ? sanitize_text_field ( wp_unslash ( $_SERVER [ 'HTTP_USER_AGENT' ] ) ) : '' ;
if ( stristr ( $http_user_agent , W3TC_POWERED_BY ) !== false ) {
return false ;
}
return true ;
}
/**
* User login hook
* Check if current user is not listed in pgcache . reject .* rules
* If so , set a role cookie so the requests wont be cached
*/
function check_login_action ( $logged_in_cookie = false , $expire = ' ' , $expiration = 0 , $user_id = 0 , $action = 'logged_out' ) {
$current_user = wp_get_current_user ();
if ( isset ( $current_user -> ID ) && ! $current_user -> ID ) {
$user_id = new \WP_User ( $user_id );
} else {
$user_id = $current_user ;
}
if ( is_string ( $user_id -> roles ) ) {
$roles = array ( $user_id -> roles );
} elseif ( ! is_array ( $user_id -> roles ) || count ( $user_id -> roles ) <= 0 ) {
return ;
} else {
$roles = $user_id -> roles ;
}
$rejected_roles = $this -> _config -> get_array ( 'pgcache.reject.roles' );
if ( 'logged_out' === $action ) {
foreach ( $rejected_roles as $role ) {
$role_hash = md5 ( NONCE_KEY . $role );
setcookie (
'w3tc_logged_' . $role_hash ,
$expire ,
time () - 31536000 ,
COOKIEPATH ,
COOKIE_DOMAIN
);
}
return ;
}
if ( 'logged_in' !== $action ) {
return ;
}
foreach ( $roles as $role ) {
if ( in_array ( $role , $rejected_roles , true ) ) {
$role_hash = md5 ( NONCE_KEY . $role );
setcookie (
'w3tc_logged_' . $role_hash ,
true ,
$expire ,
COOKIEPATH ,
COOKIE_DOMAIN ,
is_ssl (),
true
);
}
}
}
function popup_script () {
if ( function_exists ( 'is_amp_endpoint' ) && is_amp_endpoint () ) {
return ;
}
?>
< script type = " text/javascript " >
function w3tc_popupadmin_bar ( url ) {
return window . open ( url , '' , 'width=800,height=600,status=no,toolbar=no,menubar=no,scrollbars=yes' );
}
</ script >
< ? php
}
private function is_debugging () {
$debug = $this -> _config -> get_boolean ( 'pgcache.enabled' ) && $this -> _config -> get_boolean ( 'pgcache.debug' );
$debug = $debug || ( $this -> _config -> get_boolean ( 'dbcache.enabled' ) && $this -> _config -> get_boolean ( 'dbcache.debug' ) );
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$debug = $debug || ( $this -> _config -> getf_boolean ( 'objectcache.enabled' ) && $this -> _config -> get_boolean ( 'objectcache.debug' ) );
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$debug = $debug || ( $this -> _config -> get_boolean ( 'browsercache.enabled' ) && $this -> _config -> get_boolean ( 'browsercache.debug' ) );
$debug = $debug || ( $this -> _config -> get_boolean ( 'minify.enabled' ) && $this -> _config -> get_boolean ( 'minify.debug' ) );
$debug = $debug || ( $this -> _config -> get_boolean ( 'cdn.enabled' ) && $this -> _config -> get_boolean ( 'cdn.debug' ) );
return $debug ;
}
public function pro_dev_mode () {
echo '<!-- W3 Total Cache is currently running in Pro version Development mode. --><div style="border:2px solid red;text-align:center;font-size:1.2em;color:red"><p><strong>W3 Total Cache is currently running in Pro version Development mode.</strong></p></div>' ;
}
/**
* Reset the l10n global variables for our text domain .
*
* @ return void
*
* @ since 2.2 . 8
*/
public function reset_l10n () {
global $l10n ;
unset ( $l10n [ 'w3-total-cache' ] );
}
}