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< ? php
/*
Plugin Name : WP - FFPC
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Version : 0.3 . 2
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Plugin URI : http :// petermolnar . eu / wordpress / wp - ffpc
Description : Fast Full Page Cache , backend can be memcached or APC
Author : Peter Molnar
Author URI : http :// petermolnar . eu /
License : GPL2
*/
/* Copyright 2010 - 2011 Peter Molnar ( email : hello @ petermolnar . eu )
This program is free software ; you can redistribute it and / or modify
it under the terms of the GNU General Public License , version 2 , as
published by the Free Software Foundation .
This program is distributed in the hope that it will be useful ,
but WITHOUT ANY WARRANTY ; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE . See the
GNU General Public License for more details .
You should have received a copy of the GNU General Public License
along with this program ; if not , write to the Free Software
Foundation , Inc . , 51 Franklin St , Fifth Floor , Boston , MA 02110 - 1301 USA
*/
/* fix */
if ( ! defined ( 'WP_PLUGIN_URL' ) )
define ( 'WP_PLUGIN_URL' , get_option ( 'siteurl' ) . '/wp-content/plugins' );
if ( ! defined ( 'WP_PLUGIN_DIR' ) )
define ( 'WP_PLUGIN_DIR' , ABSPATH . 'wp-content/plugins' );
/* constants */
define ( 'WP_FFPC_PARAM' , 'wp-ffpc' );
define ( 'WP_FFPC_OPTION_GROUP' , 'wp-ffpcparams' );
define ( 'WP_FFPC_OPTIONS_PAGE' , 'wp-ffpcoptions' );
define ( 'WP_FFPC_URL' , WP_PLUGIN_URL . '/' . WP_FFPC_PARAM );
define ( 'WP_FFPC_DIR' , WP_PLUGIN_DIR . '/' . WP_FFPC_PARAM );
define ( 'WP_FFPC_CONF_DIR' , WP_PLUGIN_DIR . '/' . WP_FFPC_PARAM . '/config' );
define ( 'WP_FFPC_ACACHE_MAIN_FILE' , ABSPATH . 'wp-content/advanced-cache.php' );
define ( 'WP_FFPC_ACACHE_INC_FILE' , WP_FFPC_DIR . '/advanced-cache.php' );
define ( 'WP_FFPC_ACACHE_COMMON_FILE' , WP_FFPC_DIR . '/wp-ffpc-common.php' );
define ( 'WP_FFPC_CONFIG_VAR' , '$wp_ffpc_config' );
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include_once ( WP_FFPC_DIR . '/wp-ffpc-common.php' );
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if ( ! class_exists ( 'WPFFPC' )) {
/**
* main class
*
*/
class WPFFPC {
/* for options array */
var $options = array ();
/* for default options array */
var $defaults = array ();
/* memcached server object */
var $memcached = NULL ;
var $memcached_string = '' ;
/* status, 0 = nothing happened*/
var $status = 0 ;
/**
* constructor
*
*/
function __construct () {
/* register options */
$this -> get_options ();
/* check is backend is available */
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$alive = wp_ffpc_init ( $this -> options );
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/* don't register hooks if backend is dead */
if ( $alive )
{
/* init inactivation hooks */
add_action ( 'switch_theme' , array ( $this , 'invalidate' ), 0 );
add_action ( 'edit_post' , array ( $this , 'invalidate' ), 0 );
add_action ( 'publish_post' , array ( $this , 'invalidate' ), 0 );
add_action ( 'delete_post' , array ( $this , 'invalidate' ), 0 );
/* Capture and register if a redirect is sent back from WP , so the cache
can cache ( or ignore ) it . Redirects were source of problems for blogs
with more than one host name ( eg . domain . com and www . domain . com ) comined
with the use of Hyper Cache .*/
add_filter ( 'redirect_canonical' , array ( $this , 'redirect_canonical' ) , 10 , 2 );
}
/* add admin styling */
if ( is_admin () )
{
wp_enqueue_style ( WP_FFPC_PARAM . '.admin.css' , WP_FFPC_URL . '/css/' . WP_FFPC_PARAM . '.admin.css' , false , '0.1' );
}
/* on activation */
register_activation_hook ( __FILE__ , array ( $this , 'activate' ) );
/* on deactivation */
register_deactivation_hook ( __FILE__ , array ( $this , 'deactivate' ) );
/* on uninstall */
register_uninstall_hook ( __FILE__ , array ( $this , 'uninstall' ) );
/* init plugin in the admin section */
/* if multisite, admin page will be on network admin section */
if ( MULTISITE )
add_action ( 'network_admin_menu' , array ( $this , 'admin_init' ) );
/* not network, will be in simple admin menu */
else
add_action ( 'admin_menu' , array ( $this , 'admin_init' ) );
}
/**
* activation hook : save default settings in order to eliminate bugs .
*
*/
function activate ( ) {
$this -> save_settings ( true );
}
/**
* init function for admin section
*
*/
function admin_init () {
/* register options */
add_site_option ( WP_FFPC_PARAM , $this -> options , '' , 'no' );
/* save parameter updates, if there are any */
if ( isset ( $_POST [ WP_FFPC_PARAM . '-save' ]) )
{
$this -> save_settings ();
$this -> status = 1 ;
header ( " Location: admin.php?page= " . WP_FFPC_OPTIONS_PAGE . " &saved=true " );
}
add_menu_page ( 'Edit WP-FFPC options' , __ ( 'WP-FFPC' , WP_FFPC_PARAM ), 10 , WP_FFPC_OPTIONS_PAGE , array ( $this , 'admin_panel' ) );
}
/**
* settings panel at admin section
*
*/
function admin_panel ( ) {
/**
* security
*/
if ( ! function_exists ( 'current_user_can' ) || ! current_user_can ( 'manage_options' ) ){
die ( );
}
/**
* if options were saved
*/
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if ( $_GET [ 'saved' ] == 'true' || $this -> status == 1 ) : ?>
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< div id = 'setting-error-settings_updated' class = 'updated settings-error' >< p >< strong > Settings saved .</ strong ></ p ></ div >
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< ? php endif ;
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/**
* the admin panel itself
*/
?>
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< ? php if ( ! WP_CACHE ) : ?>
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< div class = " updated settings-error " >< p >< strong > WARNING : WP_CACHE is disabled , plugin will not work that way . Please add define ( 'WP_CACHE' , true ); into the beginning of wp - config . php </ strong ></ p ></ div >
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< ? php endif ; ?>
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< div class = " wrap " >
< h2 >< ? php _e ( 'NMC settings' , WP_FFPC_PARAM ) ; ?> </h2>
< form method = " post " action = " # " >
< fieldset >
< legend >< ? php _e ( 'Global settings' , WP_FFPC_PARAM ); ?> </legend>
< dl >
< div class = " grid50 " >
< dt >
< label for = " cache_type " >< ? php _e ( 'Cache invalidation method' , WP_FFPC_PARAM ); ?> </label>
</ dt >
< dd >
< select name = " cache_type " id = " cache_type " >
< ? php $this -> cache_type ( $this -> options [ 'cache_type' ] ) ?>
</ select >
< span class = " description " >< ? php _e ( 'Select cache invalidation method.' , WP_FFPC_PARAM ); ?> </span>
< span class = " default " >< ? php _e ( 'Default ' , WP_FFPC_PARAM ); ?> : <?php $this->cache_type( $this->defaults['cache_type'] , true ) ; ?></span>
</ dd >
< dt >
< label for = " expire " >< ? php _e ( 'Entry invalidation time' , WP_FFPC_PARAM ); ?> </label>
</ dt >
< dd >
< input type = " number " name = " expire " id = " expire " value = " <?php echo $this->options ['expire']; ?> " />
< span class = " description " >< ? php _e ( 'How long will an entry be valid' , WP_FFPC_PARAM ); ?> </span>
< span class = " default " >< ? php _e ( 'Default ' , WP_FFPC_PARAM ); ?> : <?php echo $this->defaults['expire']; ?></span>
</ dd >
< dt >
< label for = " charset " >< ? php _e ( 'Charset to send data with.' , WP_FFPC_PARAM ); ?> </label>
</ dt >
< dd >
< input type = " text " name = " charset " id = " charset " value = " <?php echo $this->options ['charset']; ?> " />
< span class = " description " >< ? php _e ( 'Charset of HTML and XML (pages and feeds) data.' , WP_FFPC_PARAM ); ?> </span>
< span class = " default " >< ? php _e ( 'Default ' , WP_FFPC_PARAM ); ?> : <?php echo $this->defaults['charset']; ?></span>
</ dd >
< dt >
< label for = " invalidation_method " >< ? php _e ( 'Cache invalidation method' , WP_FFPC_PARAM ); ?> </label>
</ dt >
< dd >
< select name = " invalidation_method " id = " invalidation_method " >
< ? php $this -> invalidation_method ( $this -> options [ 'invalidation_method' ] ) ?>
</ select >
< span class = " description " >< ? php _e ( 'Select cache invalidation method. <p><strong>WARNING! When selection "all", the cache will be fully flushed, including elements that were set by other applications.</strong></p>' , WP_FFPC_PARAM ); ?> </span>
< span class = " default " >< ? php _e ( 'Default ' , WP_FFPC_PARAM ); ?> : <?php $this->invalidation_method( $this->defaults['invalidation_method'] , true ) ; ?></span>
</ dd >
< dt >
< label for = " prefix_data " >< ? php _e ( 'Data prefix' , WP_FFPC_PARAM ); ?> </label>
</ dt >
< dd >
< input type = " text " name = " prefix_data " id = " prefix_data " value = " <?php echo $this->options ['prefix_data']; ?> " />
< span class = " description " >< ? php _e ( 'Prefix for HTML content keys, can be used in nginx.' , WP_FFPC_PARAM ); ?> </span>
< span class = " default " >< ? php _e ( 'Default ' , WP_FFPC_PARAM ); ?> : <?php echo $this->defaults['prefix_data']; ?></span>
</ dd >
< dt >
< label for = " prefix_meta " >< ? php _e ( 'Meta prefix' , WP_FFPC_PARAM ); ?> </label>
</ dt >
< dd >
< input type = " text " name = " prefix_meta " id = " prefix_meta " value = " <?php echo $this->options ['prefix_meta']; ?> " />
< span class = " description " >< ? php _e ( 'Prefix for meta content keys, used only with PHP processing.' , WP_FFPC_PARAM ); ?> </span>
< span class = " default " >< ? php _e ( 'Default ' , WP_FFPC_PARAM ); ?> : <?php echo $this->defaults['prefix_meta']; ?></span>
</ dd >
< dt >
< label for = " debug " >< ? php _e ( " Enable debug mode " , WP_FFPC_PARAM ); ?> </label>
</ dt >
< dd >
< input type = " checkbox " name = " debug " id = " debug " value = " 1 " < ? php checked ( $this -> options [ 'debug' ], true ); ?> />
< span class = " description " >< ? php _e ( 'An additional header, "X-Cache-Engine" will be added when pages are served through WP-FFPC.' , WP_FFPC_PARAM ); ?> </span>
< span class = " default " >< ? php _e ( 'Default ' , WP_FFPC_PARAM ); ?> : <?php $this->print_bool( $this->defaults['debug']); ?></span>
</ dd >
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< dt >
< label for = " syslog " >< ? php _e ( " Enable syslog messages " , WP_FFPC_PARAM ); ?> </label>
</ dt >
< dd >
< input type = " checkbox " name = " syslog " id = " syslog " value = " 1 " < ? php checked ( $this -> options [ 'syslog' ], true ); ?> />
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< span class = " description " >< ? php _e ( 'Writes sets, gets and flushes at INFO level into syslog, using "syslog" function of PHP.' , WP_FFPC_PARAM ); ?> </span>
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< span class = " default " >< ? php _e ( 'Default ' , WP_FFPC_PARAM ); ?> : <?php $this->print_bool( $this->defaults['syslog']); ?></span>
</ dd >
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< dt >
< label for = " pingback_status " >< ? php _e ( " Enable pingback links " , WP_FFPC_PARAM ); ?> </label>
</ dt >
< dd >
< input type = " checkbox " name = " pingback_status " id = " pingback_status " value = " 1 " < ? php checked ( $this -> options [ 'pingback_status' ], true ); ?> />
< span class = " description " >< ? php _e ( 'Enable "X-Pingback" headers in cached pages; will always use accessed hostname as host!' , WP_FFPC_PARAM ); ?> </span>
< span class = " default " >< ? php _e ( 'Default ' , WP_FFPC_PARAM ); ?> : <?php $this->print_bool( $this->defaults['pingback_status']); ?></span>
</ dd >
</ div >
< div class = " grid50 " >
< dt >
< label for = " cache_loggedin " >< ? php _e ( 'Enable cache for logged in users' , WP_FFPC_PARAM ); ?> </label>
</ dt >
< dd >
< input type = " checkbox " name = " cache_loggedin " id = " cache_loggedin " value = " 1 " < ? php checked ( $this -> options [ 'cache_loggedin' ], true ); ?> />
< span class = " description " >< ? php _e ( 'Cache pages even if user is logged in.' , WP_FFPC_PARAM ); ?> </span>
< span class = " default " >< ? php _e ( 'Default ' , WP_FFPC_PARAM ); ?> : <?php $this->print_bool( $this->defaults['cache_loggedin']); ?></span>
</ dd >
< dt >
< label for = " nocache_home " >< ? php _e ( " Don't cache home " , WP_FFPC_PARAM ); ?> </label>
</ dt >
< dd >
< input type = " checkbox " name = " nocache_home " id = " nocache_home " value = " 1 " < ? php checked ( $this -> options [ 'nocache_home' ], true ); ?> />
< span class = " description " >< ? php _e ( 'Exclude home page from caching' , WP_FFPC_PARAM ); ?> </span>
< span class = " default " >< ? php _e ( 'Default ' , WP_FFPC_PARAM ); ?> : <?php $this->print_bool( $this->defaults['nocache_home']); ?></span>
</ dd >
< dt >
< label for = " nocache_feed " >< ? php _e ( " Don't cache feeds " , WP_FFPC_PARAM ); ?> </label>
</ dt >
< dd >
< input type = " checkbox " name = " nocache_feed " id = " nocache_feed " value = " 1 " < ? php checked ( $this -> options [ 'nocache_feed' ], true ); ?> />
< span class = " description " >< ? php _e ( 'Exclude feeds from caching.' , WP_FFPC_PARAM ); ?> </span>
< span class = " default " >< ? php _e ( 'Default ' , WP_FFPC_PARAM ); ?> : <?php $this->print_bool( $this->defaults['nocache_feed']); ?></span>
</ dd >
< dt >
< label for = " nocache_archive " >< ? php _e ( " Don't cache archives " , WP_FFPC_PARAM ); ?> </label>
</ dt >
< dd >
< input type = " checkbox " name = " nocache_archive " id = " nocache_archive " value = " 1 " < ? php checked ( $this -> options [ 'nocache_archive' ], true ); ?> />
< span class = " description " >< ? php _e ( 'Exclude archives from caching.' , WP_FFPC_PARAM ); ?> </span>
< span class = " default " >< ? php _e ( 'Default ' , WP_FFPC_PARAM ); ?> : <?php $this->print_bool( $this->defaults['nocache_archive']); ?></span>
</ dd >
< dt >
< label for = " nocache_single " >< ? php _e ( " Don't cache posts (and single-type entries) " , WP_FFPC_PARAM ); ?> </label>
</ dt >
< dd >
< input type = " checkbox " name = " nocache_single " id = " nocache_single " value = " 1 " < ? php checked ( $this -> options [ 'nocache_single' ], true ); ?> />
< span class = " description " >< ? php _e ( 'Exclude singles from caching.' , WP_FFPC_PARAM ); ?> </span>
< span class = " default " >< ? php _e ( 'Default ' , WP_FFPC_PARAM ); ?> : <?php $this->print_bool( $this->defaults['nocache_single']); ?></span>
</ dd >
< dt >
< label for = " nocache_page " >< ? php _e ( " Don't cache pages " , WP_FFPC_PARAM ); ?> </label>
</ dt >
< dd >
< input type = " checkbox " name = " nocache_page " id = " nocache_page " value = " 1 " < ? php checked ( $this -> options [ 'nocache_page' ], true ); ?> />
< span class = " description " >< ? php _e ( 'Exclude pages from caching.' , WP_FFPC_PARAM ); ?> </span>
< span class = " default " >< ? php _e ( 'Default ' , WP_FFPC_PARAM ); ?> : <?php $this->print_bool( $this->defaults['nocache_page']); ?></span>
</ dd >
</ div >
</ dl >
</ fieldset >
< fieldset class = " grid50 " >
< legend >< ? php _e ( 'Settings for memcached backend' , WP_FFPC_PARAM ); ?> </legend>
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< ? php if ( ! class_exists ( 'Memcache' ) && ! class_exists ( 'Memcached' ) ) : ?>
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< h1 class = " error " > No PHP memcached extension was found . To use memcached , you need PHP Memcache or PHP Memcached extension .</ h1 >
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< ? php endif ; ?>
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< ? php if ( $this -> options [ 'cache_type' ] == 'memcached' || $this -> options [ 'cache_type' ] == 'memcache' ) : ?>
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< div >
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< strong >
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< ? php
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_e ( 'Backend status: ' , WP_FFPC_PARAM );
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$server_status = wp_ffpc_init ( $this -> options );
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$server_status = ( empty ( $server_status ) || $server_status == 0 ) ? '<span class="error-msg">down</span>' : '<span class="ok-msg">up & running</span>' ;
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echo $server_status ;
?>
</ strong >
</ div >
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< ? php endif ; ?>
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< dl >
< dt >
< label for = " host " >< ? php _e ( 'Host' , WP_FFPC_PARAM ); ?> </label>
</ dt >
< dd >
< input type = " text " name = " host " id = " host " value = " <?php echo $this->options ['host']; ?> " />
< span class = " description " >< ? php _e ( 'Hostname for memcached server' , WP_FFPC_PARAM ); ?> </span>
< span class = " default " >< ? php _e ( 'Default ' , WP_FFPC_PARAM ); ?> : <?php echo $this->defaults['host']; ?></span>
</ dd >
< dt >
< label for = " port " >< ? php _e ( 'Host' , WP_FFPC_PARAM ); ?> </label>
</ dt >
< dd >
< input type = " number " name = " port " id = " port " value = " <?php echo $this->options ['port']; ?> " />
< span class = " description " >< ? php _e ( 'Port for memcached server' , WP_FFPC_PARAM ); ?> </span>
< span class = " default " >< ? php _e ( 'Default ' , WP_FFPC_PARAM ); ?> : <?php echo $this->defaults['port']; ?></span>
</ dd >
</ dl >
</ fieldset >
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< ? php if ( $this -> options [ 'cache_type' ] == 'memcache' ) : ?>
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< fieldset class = " grid50 " >
< legend >< ? php _e ( 'Sample config for nginx to utilize the data entries' , WP_FFPC_PARAM ); ?> </legend>
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< ? php
$search = array ( 'DATAPREFIX' , 'MEMCACHEDHOST' , 'MEMCACHEDPORT' );
$replace = array ( $this -> options [ 'prefix_data' ], $this -> options [ 'host' ], $this -> options [ 'port' ] );
$nginx = file_get_contents ( WP_FFPC_DIR . '/nginx-sample.conf' );
$nginx = str_replace ( $search , $replace , $nginx );
?>
< pre >< ? php echo $nginx ; ?> </pre>
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</ fieldset >
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< ? php endif ; ?>
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< fieldset class = " grid50 " >
< legend >< ? php _e ( 'Settings for APC' , WP_FFPC_PARAM ); ?> </legend>
< dl >
< dt >
< label for = " apc_compress " >< ? php _e ( " Compress entries " , WP_FFPC_PARAM ); ?> </label>
</ dt >
< dd >
< input type = " checkbox " name = " apc_compress " id = " apc_compress " value = " 1 " < ? php checked ( $this -> options [ 'apc_compress' ], true ); ?> />
< span class = " description " >< ? php _e ( 'Try to compress APC entries. Requires PHP ZLIB.' , WP_FFPC_PARAM ); ?> </span>
< span class = " default " >< ? php _e ( 'Default ' , WP_FFPC_PARAM ); ?> : <?php $this->print_bool( $this->defaults['apc_compress']); ?></span>
</ dd >
</ dl >
</ fieldset >
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< p class = " clearcolumns " >< input class = " button-primary " type = " submit " name = " <?php echo WP_FFPC_PARAM; ?>-save " id = " <?php echo WP_FFPC_PARAM; ?>-save " value = " Save Changes " /></ p >
</ form >
< ? php
}
/**
* generates cache type select box
*
* @ param $current
* the active or required size ' s identifier
*
* @ param $returntext
* boolean : is true , the description will be returned of $current size
*
* @ return
* prints either description of $current
* or option list for a < select > input field with $current set as active
*
*/
function cache_type ( $current , $returntext = false ) {
$e = array (
'apc' => 'use APC as store' ,
'memcache' => 'use memcached server with Memcache extension' ,
'memcached' => 'use memcached server with Memcached extension' ,
);
$this -> print_select_options ( $e , $current , $returntext );
}
/**
* deactivation hook : clear advanced - cache config file
*
*/
function deactivate ( ) {
if ( @ file_exists ( WP_FFPC_ACACHE_MAIN_FILE ))
@ unlink ( WP_FFPC_ACACHE_MAIN_FILE );
}
/**
* invalidate cache
*/
function invalidate ( $post_id ) {
wp_ffpc_clear ( $post_id );
}
/**
* generates invalidation method select box
*
* @ param $current
* the active or required size ' s identifier
*
* @ param $returntext
* boolean : is true , the description will be returned of $current size
*
* @ return
* prints either description of $current
* or option list for a < select > input field with $current set as active
*
*/
function invalidation_method ( $current , $returntext = false ) {
$e = array (
0 => 'all cached pages (WARNING! Flushes _all_ cached entrys! )' ,
1 => 'only modified post' ,
);
$this -> print_select_options ( $e , $current , $returntext );
}
/**
* generates main advanced - cache system - wide config file
*
*/
function generate_config () {
$acache = WP_FFPC_ACACHE_MAIN_FILE ;
/* is file currently exists, delete it*/
if ( @ file_exists ( $acache ))
unlink ( $acache );
/* is deletion was unsuccessful, die, we have no rights to do that */
if ( @ file_exists ( $acache ))
return false ;
$string = '<?php' . " \n " .
'global ' . WP_FFPC_CONFIG_VAR . ' ;' . " \n " ;
foreach ( $this -> options as $key => $val ) {
if ( is_string ( $val ))
$val = " ' " . $val . " ' " ;
$string .= WP_FFPC_CONFIG_VAR . '[\'' . $key . '\']=' . $val . " ; \n " ;
}
$string .= " \n \n include_once (' " . WP_FFPC_ACACHE_COMMON_FILE . " '); \n include_once (' " . WP_FFPC_ACACHE_INC_FILE . " '); \n " ;
file_put_contents ( $acache , $string );
return true ;
}
/**
* parameters array with default values ;
*
*/
function get_options ( ) {
$defaults = array (
'port' => 11211 ,
'host' => '127.0.0.1' ,
'expire' => 300 ,
'invalidation_method' => 0 ,
'prefix_meta' => 'meta-' ,
'prefix_data' => 'data-' ,
'charset' => 'utf-8' ,
'pingback_status' => false ,
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'debug' => true ,
'syslog' => false ,
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'cache_type' => 'memcache' ,
'cache_loggedin' => false ,
'nocache_home' => false ,
'nocache_feed' => false ,
'nocache_archive' => false ,
'nocache_single' => false ,
'nocache_page' => false ,
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'apc_compress' => false ,
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);
$this -> defaults = $defaults ;
$this -> options = get_site_option ( WP_FFPC_PARAM , $defaults , false );
}
/**
* prints `true` or `false` depending on a bool variable .
*
* @ param $val
* The boolen variable to print status of .
*
*/
function print_bool ( $val ) {
$bool = $val ? 'true' : 'false' ;
echo $bool ;
}
/**
* select field processor
*
* @ param sizes
* array to build < option > values of
*
* @ param $current
* the current resize type
*
* @ param $returntext
* boolean : is true , the description will be returned of $current type
*
* @ return
* prints either description of $current
* or option list for a < select > input field with $current set as active
*
*/
function print_select_options ( $sizes , $current , $returntext = false ) {
if ( $returntext )
{
_e ( $sizes [ $current ] , WP_FFPC_PARAM );
return ;
}
foreach ( $sizes as $ext => $name )
{
?>
< option value = " <?php echo $ext ?> " < ? php selected ( $ext , $current ); ?> >
< ? php _e ( $name , WP_FFPC_PARAM ); ?>
</ option >
< ? php
}
}
/**
* function to be able to store redirects
*/
function redirect_canonical ( $redirect_url , $requested_url ) {
global $wp_nmc_redirect ;
$wp_nmc_redirect = $redirect_url ;
return $redirect_url ;
}
/**
* save settings function
*
*/
function save_settings ( $firstrun = false ) {
/**
* update params from $_POST
*/
foreach ( $this -> options as $name => $optionvalue )
{
if ( ! empty ( $_POST [ $name ]))
{
$update = $_POST [ $name ];
if ( strlen ( $update ) != 0 && ! is_numeric ( $update ))
$update = stripslashes ( $update );
}
elseif ( ( empty ( $_POST [ $name ]) && is_bool ( $this -> defaults [ $name ]) ) || is_numeric ( $update ) )
{
$update = 0 ;
}
else
{
$update = $this -> defaults [ $name ];
}
$this -> options [ $name ] = $update ;
}
update_site_option ( WP_FFPC_PARAM , $this -> options );
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$this -> invalidate ( 'system_flush' );
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if ( ! $firstrun )
$this -> generate_config ();
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}
/**
* clean up at uninstall
*
*/
function uninstall ( ) {
delete_site_option ( WP_FFPC_PARAM );
}
}
}
/**
* instantiate the class
*/
$wp_nmc = new WPFFPC ();
?>
