147 lines
3.8 KiB
PHP
147 lines
3.8 KiB
PHP
<?php
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/* Quit */
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defined( 'ABSPATH' ) OR exit;
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/**
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* Statify Blacklist
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*
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* @since 1.0.0
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*/
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class StatifyBlacklist {
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/**
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* Plugin options
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*
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* @var array
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* @since 1.0.0
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*/
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public static $_options;
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/**
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* Multisite Status
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*
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* @var bool
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* @since 1.0.0
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*/
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public static $multisite;
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/**
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* Class self initialize
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*
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* @since 1.0.0
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*/
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public static function instance() {
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new self();
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}
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/**
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* Class constructor
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*
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* @since 1.0.0
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* @changed 1.2.1
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*/
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public function __construct() {
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/* Skip on autosave or AJAX */
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if ( ( defined( 'DOING_AUTOSAVE' ) && DOING_AUTOSAVE ) OR ( defined( 'DOING_AJAX' ) && DOING_AJAX ) ) {
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return;
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}
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/* Plugin options */
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self::update_options();
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/* Get multisite status */
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self::$multisite = ( is_multisite() && array_key_exists( STATIFYBLACKLIST_BASE, (array) get_site_option( 'active_sitewide_plugins' ) ) );
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/* Add Filter to statify hook if enabled */
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if ( self::$_options['active_referer'] != 0 ) {
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add_filter( 'statify_skip_tracking', array( 'StatifyBlacklist', 'apply_blacklist_filter' ) );
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}
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/* Admin only filters */
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if ( is_admin() ) {
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/* Load Textdomain (only needed for backend */
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load_plugin_textdomain( 'statifyblacklist', false, STATIFYBLACKLIST_DIR . '/lang/' );
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/* Add actions */
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add_action( 'wpmu_new_blog', array( 'StatifyBlacklist_Install', 'init_site' ) );
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add_action( 'delete_blog', array( 'StatifyBlacklist_System', 'init_site' ) );
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add_filter( 'plugin_row_meta', array( 'StatifyBlacklist_Admin', 'plugin_meta_link' ), 10, 2 );
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if ( is_multisite() ) {
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add_action( 'network_admin_menu', array( 'StatifyBlacklist_Admin', '_add_menu_page' ) );
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add_filter( 'network_admin_plugin_action_links', array(
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'StatifyBlacklist_Admin',
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'plugin_actions_links'
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), 10, 2 );
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} else {
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add_action( 'admin_menu', array( 'StatifyBlacklist_Admin', '_add_menu_page' ) );
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add_filter( 'plugin_action_links', array( 'StatifyBlacklist_Admin', 'plugin_actions_links' ), 10, 2 );
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}
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}
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/* CronJob to clean up database */
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if ( defined( 'DOING_CRON' ) && DOING_CRON ) {
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if ( self::$_options['cron_referer'] == 1 ) {
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add_action( 'statify_cleanup', array( 'StatifyBlacklist_Admin', 'cleanup_database' ) );
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}
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}
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}
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/**
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* Update options
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*
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* @param $options array New options to save
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*
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* @since 1.0.0
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* @changed 1.1.1
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*/
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public static function update_options( $options = null ) {
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self::$_options = wp_parse_args(
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get_option( 'statify-blacklist' ),
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array(
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'active_referer' => 0,
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'cron_referer' => 0,
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'referer' => array(),
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'referer_regexp' => 0
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)
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);
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}
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/**
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* Apply the blacklist filter if active
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*
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* @return TRUE if referer matches blacklist.
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*
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* @since 1.0.0
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* @changed 1.3.0
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*/
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public static function apply_blacklist_filter() {
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/* Skip if blacklist is inactive */
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if ( self::$_options['active_referer'] != 1 ) {
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return false;
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}
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/* Regular Expression filtering since 1.3.0 */
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if ( isset(self::$_options['referer_regexp']) && self::$_options['referer_regexp'] > 0 ) {
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/* Get full referer string */
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$referer = ( isset( $_SERVER['HTTP_REFERER'] ) ? $_SERVER['HTTP_REFERER'] : '' );
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/* Merge given regular expressions into one */
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$regexp = '/' . implode( "|", array_keys( self::$_options['referer'] ) ) . '/';
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if ( self::$_options['referer_regexp'] == 2 ) {
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$regexp .= 'i';
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}
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/* Check blacklist */
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return preg_match( $regexp, $referer) === 1;
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} else {
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/* Extract relevant domain parts */
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$referer = strtolower( ( isset( $_SERVER['HTTP_REFERER'] ) ? parse_url( $_SERVER['HTTP_REFERER'], PHP_URL_HOST ) : '' ) );
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/* Get blacklist */
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$blacklist = self::$_options['referer'];
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/* Check blacklist */
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return isset( $blacklist[ $referer ] );
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}
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}
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}
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