Edit File by line

<?php // phpcs:ignoreFile

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defined( 'ABSPATH' ) || exit;

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/**

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* Handle add-on licenses

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class Advanced_Ads_Admin_Licenses {

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/**

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* Instance of this class.

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* @var object

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protected static $instance = null;

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/**

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* License API endpoint URL

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* @const string

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const API_ENDPOINT = 'https://wpadvancedads.com/license-api/';

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/**

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* Advanced_Ads_Admin_Licenses constructor.

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private function __construct() {

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if ( ! defined( 'DOING_AJAX' ) ) {

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add_action( 'load-plugins.php', [ $this, 'check_plugin_licenses' ] );

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}

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add_action( 'plugins_loaded', [ $this, 'wp_plugins_loaded' ] );

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// todo: check if this is loaded late enough and all add-ons are registered already.

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add_filter( 'upgrader_pre_download', [ $this, 'addon_upgrade_filter' ], 10, 3 );

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}

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/**

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* Actions and filter available after all plugins are initialized

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public function wp_plugins_loaded() {

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// check for add-on updates.

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add_action( 'admin_init', [ $this, 'add_on_updater' ], 1 );

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// react on API update checks

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add_action( 'http_api_debug', [ $this, 'update_license_after_version_info' ], 10, 5 );

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}

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/**

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* Return an instance of this class.

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* @return self object A single instance of this class.

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public static function get_instance() {

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// If the single instance hasn't been set, set it now.

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if ( null === self::$instance ) {

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self::$instance = new self();

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}

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return self::$instance;

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}

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/**

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* Initiate plugin checks

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* @since 1.7.12

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public function check_plugin_licenses() {

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if ( is_multisite() ) {

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return;

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}

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// gather all add-on plugin files.

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

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foreach ( $add_ons as $_add_on ) {

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// check license status.

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if ( $this->get_license_status( $_add_on['options_slug'] ) !== 'valid' ) {

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// register warning.

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$plugin_file = plugin_basename( $_add_on['path'] );

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add_action( 'after_plugin_row_' . $plugin_file, [ $this, 'add_plugin_list_license_notice' ], 10, 2 );

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}

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}

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}

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/**

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* Add a row below add-ons with an invalid license on the plugin list

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* @param string $plugin_file Path to the plugin file, relative to the plugins directory.

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* @param array $plugin_data An array of plugin data.

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* @since 1.7.12

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* @todo make this work on multisite as well

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public function add_plugin_list_license_notice( $plugin_file, $plugin_data ) {

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static $cols;

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if ( is_null( $cols ) ) {

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$cols = count( _get_list_table( 'WP_Plugins_List_Table' )->get_columns() );

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}

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printf(

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'<tr class="advads-plugin-update-tr plugin-update-tr active"><td class="plugin-update colspanchange" colspan="%d"><div class="update-message notice inline notice-warning notice-alt">%s</div></td></tr>',

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esc_attr( $cols ),

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wp_kses_post(

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sprintf(

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/* Translators: 1: add-on name 2: admin URL to license page */

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__( 'There might be a new version of %1$s. Please provide a valid license key in order to receive updates and support <a href="%2$s">on this page</a>.', 'advanced-ads' ),

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$plugin_data['Title'],

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admin_url( 'admin.php?page=advanced-ads-settings#top#licenses' )

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)

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)

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);

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}

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/**

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* Save license key

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* @param string $addon string with add-on identifier.

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* @param string $plugin_name name of the add-on.

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* @param string $options_slug slug of the option in the database.

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* @param string $license_key license key.

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* @return string

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* @since 1.2.0

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public function activate_license( $addon = '', $plugin_name = '', $options_slug = '', $license_key = '' ) {

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if ( '' === $addon || '' === $plugin_name || '' === $options_slug ) {

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return __( 'Error while trying to register the license. Please contact support.', 'advanced-ads' );

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}

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$license_key = esc_attr( trim( $license_key ) );

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if ( '' === $license_key ) {

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return __( 'Please enter a valid license key', 'advanced-ads' );

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}

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if ( has_filter( 'advanced_ads_license_' . $options_slug ) ) {

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return apply_filters( 'advanced_ads_license_' . $options_slug, false, __METHOD__, $plugin_name, $options_slug, $license_key );

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}

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/**

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* We need to remove the mltlngg_get_url_translated filter added by Multilanguage by BestWebSoft, https://wordpress.org/plugins/multilanguage/

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* it causes the URL to look much different than it originally is

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* we are adding it again later

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remove_filter( 'home_url', 'mltlngg_get_url_translated' );

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$api_params = [

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'edd_action' => 'activate_license',

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'license' => $license_key,

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'item_name' => urlencode( $plugin_name ),

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'url' => home_url(),

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];

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/**

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* Re-add the filter removed from above

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if ( function_exists( 'mltlngg_get_url_translated' ) ) {

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add_filter( 'home_url', 'mltlngg_get_url_translated' );

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}

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// Call the custom API.

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$response = wp_remote_post(

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self::API_ENDPOINT,

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[

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'timeout' => 15,

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'sslverify' => false,

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'body' => $api_params,

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]

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);

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// show license debug output if constant is set.

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if ( defined( 'ADVANCED_ADS_SHOW_LICENSE_RESPONSE' ) ) {

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return '' . esc_html__( 'The license status does not change as long as ADVANCED_ADS_SHOW_LICENSE_RESPONSE is enabled in wp-config.php.', 'advanced-ads' ) . '' .

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'<pre>' . print_r( $response, true ) . '</pre>';

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}

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/**

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* Send the user to our support when his request is blocked by our firewall

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if ( $error = $this->blocked_by_firewall( $response ) ) {

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return $error;

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}

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if ( is_wp_error( $response ) ) {

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$body = wp_remote_retrieve_body( $response );

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if ( $body ) {

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return $body;

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} else {

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$curl = curl_version();

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return __( 'License couldn’t be activated. Please try again later.', 'advanced-ads' ) . " (cURL {$curl['version']})";

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}

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}

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$license_data = json_decode( wp_remote_retrieve_body( $response ) );

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// save license status.

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if ( ! empty( $license_data->license ) ) {

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update_option( $options_slug . '-license-status', $license_data->license, false );

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}

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if ( ! empty( $license_data->expires ) ) {

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update_option( $options_slug . '-license-expires', $license_data->expires, false );

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}

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// display activation problem.

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if ( ! empty( $license_data->error ) ) {

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// user friendly texts for errors.

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$errors = [

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'license_not_activable' => __( 'This is the bundle license key.', 'advanced-ads' ),

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'item_name_mismatch' => __( 'This is not the correct key for this add-on.', 'advanced-ads' ),

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'no_activations_left' => __( 'There are no activations left.', 'advanced-ads' )

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. ' '

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. sprintf(

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/* translators: %1$s is a starting link tag, %2$s is the closing one. */

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__( 'You can manage activations in %1$syour account%2$s.', 'advanced-ads' ),

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'<a href="https://wpadvancedads.com/account/?utm_source=advanced-ads&utm_medium=link&utm_campaign=settings-licenses-activations-left" target="_blank">',

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'</a>'

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) . ' '

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. sprintf(

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/* translators: %1$s is a starting link tag, %2$s is the closing one. */

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__( '%1$sUpgrade%2$s for more activations.', 'advanced-ads' ),

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'<a href="https://wpadvancedads.com/account/upgrades/?utm_source=advanced-ads&utm_medium=link&utm_campaign=settings-licenses-activations-left" target="_blank">',

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'</a>'

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];

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$error = isset( $errors[ $license_data->error ] ) ? $errors[ $license_data->error ] : $license_data->error;

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if ( 'expired' === $license_data->error ) {

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return 'ex';

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} else {

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if ( isset( $errors[ $license_data->error ] ) ) {

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return $error;

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} else {

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return sprintf(

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// translators: %s is a string containing information about the issue.

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__( 'License is invalid. Reason: %s', 'advanced-ads' ),

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$error

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);

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}

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}

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} else {

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// reset license_expires admin notification.

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Advanced_Ads_Admin_Notices::get_instance()->remove_from_queue( 'license_expires' ); // this one is no longer added, but we keep the check here in case it is still in the queue for some users.

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Advanced_Ads_Admin_Notices::get_instance()->remove_from_queue( 'license_expired' ); // this one is no longer added, but we keep the check here in case it is still in the queue for some users.

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Advanced_Ads_Admin_Notices::get_instance()->remove_from_queue( 'license_invalid' );

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// save license key.

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$licenses = $this->get_licenses();

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$licenses[ $addon ] = $license_key;

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$this->save_licenses( $licenses );

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}

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return 1;

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}

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/**

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* Check if a request was blocked by our firewall

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* @param array $response response from license call.

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* @return mixed message or false

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public function blocked_by_firewall( $response ) {

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$response_code = wp_remote_retrieve_response_code( $response );

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if ( '403' == $response_code ) {

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$blocked_information = '–';

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if ( isset( $response['body'] ) ) {

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// look for the IP address in this line: `<td>95.90.238.103</td>`.

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$pattern = '/([.0-9]*)<\/span>/';

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$matches = [];

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preg_match( $pattern, $response['body'], $matches );

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$ip = isset( $matches[1] ) ? $matches[1] : '–';

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$blocked_information = 'IP: ' . $ip;

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}

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// translators: %s is a list of server information like IP address. Just keep it as is.

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return sprintf( __( 'Your request was blocked by our firewall. Please send us the following information to unblock you: %s.', 'advanced-ads' ), $blocked_information );

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}

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return false;

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}

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/**

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* Check if a specific license key was already activated for the current page

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* @param string $license_key license key.

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* @param string $plugin_name name of the add-on.

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* @param string $options_slug slug of the option in the database.

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* @return bool true if already activated

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* @since 1.6.17

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* @deprecated since version 1.7.2 because it only checks if a key is valid, not if the url registered with that key

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public function check_license( $license_key = '', $plugin_name = '', $options_slug = '' ) {

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if ( has_filter( 'advanced_ads_license_' . $options_slug ) ) {

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return apply_filters( 'advanced_ads_license_' . $options_slug, false, __METHOD__, $plugin_name, $options_slug, $license_key );

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}

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$api_params = [

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'edd_action' => 'check_license',

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'license' => $license_key,

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'item_name' => urlencode( $plugin_name ),

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];

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$response = wp_remote_get(

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add_query_arg( $api_params, 'https://wpadvancedads.com/' ),

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[

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'timeout' => 15,

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'sslverify' => false,

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]

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);

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if ( is_wp_error( $response ) ) {

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return false;

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}

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$license_data = json_decode( wp_remote_retrieve_body( $response ) );

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// if this license is still valid.

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if ( 'valid' === $license_data->license ) {

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update_option( $options_slug . '-license-expires', $license_data->expires, false );

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update_option( $options_slug . '-license-status', $license_data->license, false );

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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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* Deactivate license key

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* @param string $addon string with add-on identifier.

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* @param string $plugin_name name of the add-on.

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* @param string $options_slug slug of the option in the database.

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* @return string

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* @since 1.6.11

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public function deactivate_license( $addon = '', $plugin_name = '', $options_slug = '' ) {

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if ( '' === $addon || '' === $plugin_name || '' === $options_slug ) {

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return __( 'Error while trying to disable the license. Please contact support.', 'advanced-ads' );

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}

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$licenses = $this->get_licenses();

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$license_key = isset( $licenses[ $addon ] ) ? $licenses[ $addon ] : '';

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if ( has_filter( 'advanced_ads_license_' . $options_slug ) ) {

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return apply_filters( 'advanced_ads_license_' . $options_slug, false, __METHOD__, $plugin_name, $options_slug, $license_key );

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}

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$api_params = [

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'edd_action' => 'deactivate_license',

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'license' => $license_key,

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'item_name' => urlencode( $plugin_name ),

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];

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// send the remote request.

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$response = wp_remote_post(

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self::API_ENDPOINT,

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[

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'body' => $api_params,

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'timeout' => 15,

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'sslverify' => false,

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]

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);

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// show license debug output if constant is set.

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if ( defined( 'ADVANCED_ADS_SHOW_LICENSE_RESPONSE' ) ) {

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return '' . esc_html__( 'The license status does not change as long as ADVANCED_ADS_SHOW_LICENSE_RESPONSE is enabled in wp-config.php.', 'advanced-ads' ) . '' .

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'<pre>' . print_r( $response, true ) . '</pre>';

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}

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if ( is_wp_error( $response ) ) {

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$body = wp_remote_retrieve_body( $response );

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if ( $body ) {

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return $body;

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} else {

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return __( 'License couldn’t be deactivated. Please try again later.', 'advanced-ads' );

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}

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}

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$license_data = json_decode( wp_remote_retrieve_body( $response ) );

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/**

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* Send the user to our support when his request is blocked by our firewall

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if ( $error = $this->blocked_by_firewall( $response ) ) {

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return $error;

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}

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// remove data.

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if ( 'deactivated' === $license_data->license ) {

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delete_option( $options_slug . '-license-status' );

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delete_option( $options_slug . '-license-expires' );

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} elseif ( 'failed' === $license_data->license ) {

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update_option( $options_slug . '-license-expires', $license_data->expires, false );

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update_option( $options_slug . '-license-status', $license_data->license, false );

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return 'ex';

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} else {

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return __( 'License couldn’t be deactivated. Please try again later.', 'advanced-ads' );

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}

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return 1;

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}

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/**

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* Get license keys for all add-ons

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* @return string[]

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public function get_licenses() {

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return get_option( ADVADS_SLUG . '-licenses', [] );

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}

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/**

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* Save license keys for all add-ons

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* @param array $licenses licenses.

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public function save_licenses( $licenses = [] ) {

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update_option( ADVADS_SLUG . '-licenses', $licenses );

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}

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/**

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* Get license status of an add-on

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* @param string $slug slug of the add-on.

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* @return string|false license status, "valid", "invalid" or false if option doesn't exist.

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public function get_license_status( $slug = '' ) {

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return get_option( $slug . '-license-status', false );

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}

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/**

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* If two or more add-ons use the same valid license this is probably an all-access customer

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* @return bool

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public function get_probably_all_access() {

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$valid = array_filter(

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$this->get_licenses(),

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function ( $key ) {

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return $this->get_license_status( ADVADS_SLUG . '-' . $key );

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ARRAY_FILTER_USE_KEY

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);

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return [] !== $valid && max( array_count_values( $valid ) ) > 1;

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}

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/**

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* Return the licence expiry time if it is equal for more than one add-on. That indicates it is likely an All Access license

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* @return string|null

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public function get_probably_all_access_expiry() {

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/**

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* Get expiry dates of all add-ons.

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* @param string $key Add-on key.

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* @return string|false the expiration date or false.

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$expiry_counts = array_count_values( array_map( function( $key ) {

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return $this->get_license_expires( ADVADS_SLUG . '-' . $key );

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}, array_keys( array_filter( $this->get_licenses() ) ) ) );

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/**

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* Remove all licenses that are used only once.

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* @param int $count the count from array_count_values_above

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* @return bool whether the count is greater 1

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$all_access = array_filter( $expiry_counts, function( $count ) {

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return $count > 1;

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} );

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// if there is an item in $all_access we can assume this is from All Access and return the expiry date.

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return empty( $all_access ) ? null : key( $all_access );

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}

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/**

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* Get license expired value of an add-on

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* @param string $slug slug of the add-on.

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* @return string $date expiry date of an add-on, empty string if no option exists

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public function get_license_expires( $slug = '' ) {

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return get_option( $slug . '-license-expires', '' );

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}

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/**

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* Register the Updater class for every add-on, which includes getting version information

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public function add_on_updater() {

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// ignore, if not main blog or if updater was disabled

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if ( ( is_multisite() && ! is_main_site() ) || ! apply_filters( 'advanced-ads-add-ons-updater', true ) ) {

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return;

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}

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/**

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* List of registered add ons

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* contains:

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* name

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