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<?php

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/**

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* Checks for various things

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* @since 1.6.9

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class Advanced_Ads_Checks {

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/**

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* Minimum required PHP version of Advanced Ads

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const MINIMUM_PHP_VERSION = '5.6.20';

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/**

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* Show the list of potential issues

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public static function show_issues() {

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include_once ADVADS_ABSPATH . '/admin/views/checks.php';

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}

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/**

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* PHP version minimum

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* @return bool true if uses the minimum PHP version or higher

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public static function php_version_minimum() {

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if ( version_compare( phpversion(), self::MINIMUM_PHP_VERSION, '>=' ) ) {

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return true;

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}

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return false;

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}

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/**

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* Caching used

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* @return bool true if active

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public static function cache() {

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if ( ( defined( 'WP_CACHE' ) && WP_CACHE ) // general cache constant.

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|| defined( 'W3TC' ) // W3 Total Cache.

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|| function_exists( 'wp_super_cache_text_domain' ) // WP SUper Cache.

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|| defined( 'WP_ROCKET_SLUG' ) // WP Rocket.

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|| defined( 'WPFC_WP_CONTENT_DIR' ) // WP Fastest Cache.

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|| class_exists( 'HyperCache', false ) // Hyper Cache.

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|| defined( 'CE_CACHE_DIR' ) // Cache Enabler.

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) {

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return true;

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}

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return false;

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}

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/**

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* WordPress update available

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* @return bool true if WordPress update available

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public static function wp_update_available() {

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$update_data = wp_get_update_data();

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$count = absint( $update_data['counts']['wordpress'] );

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if ( $count ) {

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return true;

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}

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return false;

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}

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/**

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* Check if license keys are missing or invalid or expired

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* @since 1.6.6

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* @update 1.6.9 moved from Advanced_Ads_Plugin

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* @update 1.8.21 also check for expired licenses

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* @return true if there are missing licenses

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public static function licenses_invalid() {

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$add_ons = apply_filters( 'advanced-ads-add-ons', [] );

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if ( [] === $add_ons ) {

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Advanced_Ads_Ad_Health_Notices::get_instance()->remove( 'license_invalid' );

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return false;

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}

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foreach ( $add_ons as $_add_on_key => $_add_on ) {

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$status = Advanced_Ads_Admin_Licenses::get_instance()->get_license_status( $_add_on['options_slug'] );

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// check expiry date.

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$expiry_date = Advanced_Ads_Admin_Licenses::get_instance()->get_license_expires( $_add_on['options_slug'] );

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if ( $expiry_date && 'lifetime' !== $expiry_date && strtotime( $expiry_date ) < time() ) {

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return true;

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}

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// don’t check if license is valid.

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if ( 'valid' === $status ) {

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continue;

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}

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// retrieve our license key from the DB.

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$licenses = Advanced_Ads_Admin_Licenses::get_instance()->get_licenses();

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$license_key = isset( $licenses[ $_add_on_key ] ) ? $licenses[ $_add_on_key ] : false;

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if ( ! $license_key || 'valid' !== $status ) {

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return true;

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}

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}

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// remove notice, if one is given.

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Advanced_Ads_Ad_Health_Notices::get_instance()->remove( 'license_invalid' );

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return false;

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}

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/**

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* Autoptimize plugin installed

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* can change ad tags, especially inline css and scripts

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* @link https://wordpress.org/plugins/autoptimize/

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* @return bool true if Autoptimize is installed

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public static function active_autoptimize() {

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if ( defined( 'AUTOPTIMIZE_PLUGIN_VERSION' ) ) {

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return true;

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}

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return false;

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}

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/**

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* WP rocket plugin installed

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* @return bool true if WP rocket is installed

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public static function active_wp_rocket() {

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if ( defined( 'WP_ROCKET_SLUG' ) ) {

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return true;

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}

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return false;

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}

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/**

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* Checks the settings of wp rocket to find out if combining of javascript files is enabled

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* @return boolean true, when "Combine JavaScript files" is enabled

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public static function is_wp_rocket_combine_js_enabled() {

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if ( self::active_wp_rocket() ) {

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$settings = get_option( 'wp_rocket_settings' );

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if ( $settings ) {

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if ( isset( $settings['minify_concatenate_js'] ) && $settings['minify_concatenate_js'] ) {

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return true;

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}

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}

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}

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return false;

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}

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/**

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* Any AMP plugin enabled

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* @return bool true if AMP plugin is installed

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public static function active_amp_plugin() {

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// Accelerated Mobile Pages.

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if ( function_exists( 'ampforwp_is_amp_endpoint' ) ) {

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return true;

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}

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// AMP plugin.

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if ( function_exists( 'is_amp_endpoint' ) ) {

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return true;

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}

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// other plugins.

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if ( function_exists( 'is_wp_amp' ) ) {

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return true;

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}

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return false;

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}

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/**

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* Checks if the preconditions are met to wrap an ad with  comments

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* @return boolean

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public static function requires_noptimize_wrapping() {

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return self::active_autoptimize() || self::is_wp_rocket_combine_js_enabled();

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}

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/**

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* Check for additional conflicting plugins

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* @return array $plugins names of conflicting plugins

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public static function conflicting_plugins() {

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$conflicting_plugins = [];

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if ( defined( 'Publicize_Base' ) ) { // JetPack Publicize module.

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$conflicting_plugins[] = 'Jetpack – Publicize';

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}

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if ( defined( 'PF__PLUGIN_DIR' ) ) { // Facebook Instant Articles & Google AMP Pages by PageFrog.

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$conflicting_plugins[] = 'Facebook Instant Articles & Google AMP Pages by PageFrog';

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}

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if ( defined( 'GT_VERSION' ) ) { // GT ShortCodes.

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$conflicting_plugins[] = 'GT ShortCodes';

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}

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if ( class_exists( 'SimilarPosts', false ) ) { // Similar Posts, https://de.wordpress.org/plugins/similar-posts/.

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$conflicting_plugins[] = 'Similar Posts';

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}

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return $conflicting_plugins;

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}

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/**

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* Check if any of the global hide ads options is set

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* ignore RSS feed setting, because it is standard

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* @since 1.7.10

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* @return bool

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public static function ads_disabled() {

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$options = Advanced_Ads::get_instance()->options();

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if ( isset( $options['disabled-ads'] ) && is_array( $options['disabled-ads'] ) ) {

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foreach ( $options['disabled-ads'] as $_key => $_value ) {

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// don’t warn if "RSS Feed", "404", or "REST API" option are enabled, because they are normally not critical.

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if ( ! empty( $_value ) && ! in_array( (string) $_key, [ 'feed', '404', 'rest-api' ], true ) ) {

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return true;

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}

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}

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}

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return false;

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}

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/**

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* Check for required php extensions

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* @return array

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public static function php_extensions() {

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$missing_extensions = [];

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if ( ! extension_loaded( 'dom' ) ) {

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$missing_extensions[] = 'dom';

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}

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if ( ! extension_loaded( 'mbstring' ) ) {

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$missing_extensions[] = 'mbstring';

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}

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return $missing_extensions;

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}

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/**

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* Get the list of Advanced Ads constant defined by the user.

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* @return array

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public static function get_defined_constants() {

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$constants = apply_filters(

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'advanced-ads-constants',

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[

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'ADVADS_ADS_DISABLED',

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'ADVADS_ALLOW_ADSENSE_ON_404',

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'ADVADS_DISABLE_RESPONSIVE_IMAGES',

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'ADVANCED_ADS_AD_DEBUG_FOR_ADMIN_ONLY',

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'ADVANCED_ADS_DISABLE_ANALYTICS_ANONYMIZE_IP',

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'ADVANCED_ADS_DISABLE_CHANGE',

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'ADVANCED_ADS_DISABLE_CODE_HIGHLIGHTING',

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'ADVANCED_ADS_DISABLE_SHORTCODE_BUTTON',

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'ADVANCED_ADS_DISALLOW_PHP',

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'ADVANCED_ADS_ENABLE_REVISIONS',

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'ADVANCED_ADS_GEO_TEST_IP',

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'ADVANCED_ADS_PRO_CUSTOM_POSITION_MOVE_INTO_HIDDEN',

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'ADVANCED_ADS_PRO_PAGE_IMPR_EXDAYS',

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'ADVANCED_ADS_PRO_REFERRER_EXDAYS',

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'ADVANCED_ADS_RESPONSIVE_DISABLE_BROWSER_WIDTH',

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'ADVANCED_ADS_SHOW_LICENSE_RESPONSE',

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'ADVANCED_ADS_SUPPRESS_PLUGIN_ERROR_NOTICES',

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'ADVANCED_ADS_TRACKING_DEBUG',

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'ADVANCED_ADS_TRACKING_NO_HOURLY_LIMIT',

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]

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);

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$result = [];

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foreach ( $constants as $constant ) {

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if ( defined( $constant ) ) {

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$result[] = $constant;

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}

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}

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return $result;

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}

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/**

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* WP Engine hosting detected

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* @return bool true if site is hosted by WP Engine

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public static function wp_engine_hosting() {

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if ( defined( 'WPE_APIKEY' ) ) {

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return true;

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}

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return false;

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}

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/**

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* Notice for Adblocker module if assets have expired

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public static function assets_expired() {

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$plugin_options = Advanced_Ads_Plugin::get_instance()->options();

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$adblocker_options = Advanced_Ads_Ad_Blocker::get_instance()->options();

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return ( ! empty( $plugin_options['use-adblocker'] ) && empty( $adblocker_options['module_can_work'] ) );

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}

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/**

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* Check for other ads.txt plugins

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* @return array

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public static function ads_txt_plugins() {

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$ads_txt_plugins = [];

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// Ads.txt Manager.

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if ( function_exists( 'tenup_display_ads_txt' ) ) {

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$ads_txt_plugins[] = 'Ads.txt Manager';

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}

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// todo:

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// ads-txt-admin/unveil-media-ads-txt.php

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// simple-ads-txt/bs_ads_txt.php

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// ads-txt-manager/adstxtmanager.php

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// monetizemore-ads-txt/wp-ads-txt.php

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// authorized-sellers-manager/ads-txt-publisher.php.

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return $ads_txt_plugins;

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}

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/**

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* Check for activated plugins that manage header or footer code

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* @return array

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public static function header_footer_plugins() {

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$plugins = [];

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// Header Footer Code Manager.

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if ( function_exists( 'hfcm_options_install' ) ) {

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$plugins[] = 'Header Footer Code Manager';

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}

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// Head, Footer and Post Injections.

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if ( function_exists( 'hefo_template_redirect' ) ) {

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$plugins[] = 'Head, Footer and Post Injections';

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}

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// Insert Headers and Footers /insert-headers-and-footers/.

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if ( class_exists( 'InsertHeadersAndFooters', false ) ) {

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$plugins[] = 'Insert Headers and Footers';

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}

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// Header and Footer Scripts /header-and-footer-scripts/.

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if ( class_exists( 'HeaderAndFooterScripts', false ) ) {

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$plugins[] = 'Header and Footer Scripts';

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}

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return $plugins;

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}

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}

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