<?php

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/**

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* Extension License Handler

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*

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* @package PUM

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* @copyright Copyright (c) 2023, Code Atlantic LLC

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*/

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// Exit if accessed directly.

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defined( 'ABSPATH' ) || exit;

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/**

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* License handler for Popup Maker

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*

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* This class should simplify the process of adding license information to new Popup Maker extensions.

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*

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* Note for wordpress.org admins. This is not called in the free hosted version and is simply used for hooking in addons to one update system rather than including it in each plugin.

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*

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* @version 1.1

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*/

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class PUM_Extension_License {

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/**

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* Plugin file.

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*

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* @var string

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*/

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private $file;

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/**

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* License key.

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*

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* @var string

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*/

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private $license;

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/**

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* Plugin name.

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*

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* @var string

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*/

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private $item_name;

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/**

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* Plugin EDD item ID.

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*

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* @var int

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*/

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private $item_id;

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/**

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* Plugin shortname.

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*

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* @var string

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*/

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private $item_shortname;

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/**

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* Plugin version.

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*

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* @var string

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*/

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private $version;

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/**

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* Plugin author.

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*

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* @var string

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*/

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private $author;

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/**

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* API URL.

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*

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* @var string

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*/

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private $api_url = 'https://wppopupmaker.com/edd-sl-api/';

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/**

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* Class constructor

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*

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* @param string $_file

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* @param string $_item_name

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* @param string $_version

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* @param string $_author

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* @param string $_optname

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* @param string $_api_url

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* @param int $_item_id

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*/

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function __construct( $_file, $_item_name, $_version, $_author, $_optname = null, $_api_url = null, $_item_id = null ) {

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$this->file = $_file;

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$this->item_name = $_item_name;

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if ( is_numeric( $_item_id ) ) {

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$this->item_id = absint( $_item_id );

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}

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$this->item_shortname = 'popmake_' . preg_replace( '/[^a-zA-Z0-9_\s]/', '', str_replace( ' ', '_', strtolower( $this->item_name ) ) );

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$this->version = $_version;

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$this->license = trim( PUM_Utils_Options::get( $this->item_shortname . '_license_key', '' ) );

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$this->author = $_author;

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$this->api_url = is_null( $_api_url ) ? $this->api_url : $_api_url;

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/**

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* Allows for backwards compatibility with old license options,

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* i.e. if the plugins had license key fields previously, the license

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* handler will automatically pick these up and use those in lieu of the

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* user having to reactive their license.

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*/

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if ( ! empty( $_optname ) ) {

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$opt = PUM_Utils_Options::get( $_optname );

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if ( isset( $opt ) && empty( $this->license ) ) {

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$this->license = trim( $opt );

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}

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}

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// Setup hooks

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$this->includes();

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$this->hooks();

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}

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/**

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* Include the updater class

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*

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* @access private

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* @return void

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*/

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private function includes() {

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}

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/**

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* Setup hooks

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*

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* @access private

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* @return void

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*/

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private function hooks() {

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// Register settings

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add_filter( 'pum_settings_fields', [ $this, 'settings' ], 1 );

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// Activate license key on settings save

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add_action( 'admin_init', [ $this, 'activate_license' ] );

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// Deactivate license key

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add_action( 'admin_init', [ $this, 'deactivate_license' ] );

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// Check that license is valid once per week

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add_action( 'popmake_weekly_scheduled_events', [ $this, 'weekly_license_check' ] );

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// For testing license notices, uncomment this line to force checks on every page load

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// add_action( 'admin_init', array( $this, 'weekly_license_check' ) );

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// Updater

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add_action( 'admin_init', [ $this, 'auto_updater' ], 0 );

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// Display notices to admins

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// add_action( 'admin_notices', array( $this, 'notices' ) );

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// Display notices to admins

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add_filter( 'pum_alert_list', [ $this, 'alerts' ] );

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add_action( 'in_plugin_update_message-' . plugin_basename( $this->file ), [ $this, 'plugin_row_license_missing' ], 10, 2 );

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// Register plugins for beta support

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add_filter( 'pum_beta_enabled_extensions', [ $this, 'register_beta_support' ] );

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}

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/**

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* Auto updater

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*

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* @access private

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* @return void

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*/

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public function auto_updater() {

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$args = [

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'version' => $this->version,

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'license' => $this->license,

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'author' => $this->author,

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'beta' => PUM_Admin_Tools::extension_has_beta_support( $this->item_shortname ),

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];

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if ( ! empty( $this->item_id ) ) {

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$args['item_id'] = $this->item_id;

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} else {

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$args['item_name'] = $this->item_name;

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}

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// Setup the updater

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$popmake_updater = new PUM_Extension_Updater( $this->api_url, $this->file, $args );

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}

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/**

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* Add license field to settings

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*

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* @access public

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*

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* @param array $tabs

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*

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* @return array

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*/

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public function settings( $tabs = [] ) {

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static $license_help_text = false;

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if ( ! $license_help_text && ! isset( $tabs['licenses']['main']['license_help_text'] ) ) {

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$license_help_text = true;

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$tabs['licenses']['main']['license_help_text'] = [

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'type' => 'html',

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'content' => '<p><strong>' . sprintf( __( 'Enter your extension license keys here to receive updates for purchased extensions. If your license key has expired, please %1$srenew your license%2$s.', 'popup-maker' ), '<a href="https://docs.wppopupmaker.com/article/177-license-renewal?utm_medium=license-help-text&utm_campaign=Licensing&utm_source=plugin-settings-page-licenses-tab" target="_blank">', '</a>' ) . '</strong></p>',

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'priority' => 0,

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];

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}

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$tabs['licenses']['main'][ $this->item_shortname . '_license_key' ] = [

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'type' => 'license_key',

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'label' => sprintf( __( '%1$s', 'popup-maker' ), $this->item_name ),

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'options' => [

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'is_valid_license_option' => $this->item_shortname . '_license_active',

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'activation_callback' => [ $this, 'activate_license' ],

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],

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];

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return $tabs;

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}

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/**

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* Activate the license key

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*

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* @access public

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* @return void

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*/

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public function activate_license() {

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if ( ! isset( $_POST['pum_settings'] ) ) {

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return;

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}

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if ( ! isset( $_POST['pum_settings'][ $this->item_shortname . '_license_key' ] ) ) {

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return;

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}

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// Don't activate a key when deactivating a different key

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if ( ! empty( $_POST['pum_license_deactivate'] ) ) {

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return;

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}

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if ( ! current_user_can( 'manage_options' ) ) {

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return;

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}

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$details = get_option( $this->item_shortname . '_license_active' );

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if ( is_object( $details ) && 'valid' === $details->license ) {

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return;

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}

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$license = sanitize_text_field( $_POST['pum_settings'][ $this->item_shortname . '_license_key' ] );

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if ( empty( $license ) && empty( $_POST['pum_license_activate'][ $this->item_shortname . '_license_key' ] ) ) {

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return;

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}

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// Data to send to the API

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$api_params = [

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'edd_action' => 'activate_license',

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'license' => $license,

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'item_id' => $this->item_id,

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'item_name' => rawurlencode( $this->item_name ),

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'url' => home_url(),

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'environment' => function_exists( 'wp_get_environment_type' ) ? wp_get_environment_type() : 'production',

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];

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// Call the API

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$response = wp_remote_get(

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$this->api_url,

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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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// Make sure there are no errors

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if ( is_wp_error( $response ) ) {

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return;

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}

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// Tell WordPress to look for updates

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set_site_transient( 'update_plugins', null );

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// Decode license data

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

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update_option( $this->item_shortname . '_license_active', $license_data );

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}

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/**

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* Deactivate the license key

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*

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* @access public

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* @return void

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*/

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public function deactivate_license() {

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if ( ! isset( $_POST['pum_settings'] ) ) {

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return;

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}

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if ( ! isset( $_POST['pum_settings'][ $this->item_shortname . '_license_key' ] ) ) {

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return;

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}

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if ( ! current_user_can( 'manage_options' ) ) {

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return;

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}

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// Run on deactivate button press

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if ( isset( $_POST['pum_license_deactivate'][ $this->item_shortname . '_license_key' ] ) ) {

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// Data to send to the API

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$api_params = [

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'edd_action' => 'deactivate_license',

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'license' => $this->license,

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'item_id' => $this->item_id,

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'item_name' => rawurlencode( $this->item_name ),

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'url' => home_url(),

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'environment' => function_exists( 'wp_get_environment_type' ) ? wp_get_environment_type() : 'production',

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];

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// Call the API

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$response = wp_remote_get(

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$this->api_url,

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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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// Make sure there are no errors

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if ( is_wp_error( $response ) ) {

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return;

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}

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// Decode the license data

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

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delete_option( $this->item_shortname . '_license_active' );

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}

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}

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/**

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* Check if license key is valid once per week

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*

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* @access public

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* @since 2.5

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* @return void

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*/

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public function weekly_license_check() {

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if ( ! empty( $_POST['popmake_settings'] ) ) {

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return; // Don't fire when saving settings

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}

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if ( empty( $this->license ) ) {

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return;

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}

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// data to send in our API request

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$api_params = [

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'edd_action' => 'check_license',

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'license' => $this->license,

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'item_id' => $this->item_id,

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'item_name' => rawurlencode( $this->item_name ),

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'url' => home_url(),

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'environment' => function_exists( 'wp_get_environment_type' ) ? wp_get_environment_type() : 'production',

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];

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// Call the API

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$response = wp_remote_get(

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$this->api_url,

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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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// make sure the response came back okay

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if ( is_wp_error( $response ) ) {

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return;

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}

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

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update_option( $this->item_shortname . '_license_active', $license_data );

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}

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/**

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* Adds an alert to the Popup Maker notification area when the license is invalid, expired, or empty

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*

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* @param array $alerts The existing alerts from the pum_alert_list filter

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* @return array Our modified array of alerts

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*/

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public function alerts( $alerts = [] ) {

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static $showed_invalid_message;

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// If user can't manage it, or we already showed this alert abort.

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if ( ! current_user_can( 'manage_options' ) || $showed_invalid_message ) {

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return $alerts;

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}

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// If this alert is already in the list of alerts, abort.

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foreach ( $alerts as $alert ) {

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if ( 'license_not_valid' === $alert['code'] ) {

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return $alerts;

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}

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}

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// If this license key is not empty, check if it's valid.

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

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$license = get_option( $this->item_shortname . '_license_active' );

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if ( ! is_object( $license ) || 'valid' === $license->license ) {

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return $alerts;

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}

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}

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$showed_invalid_message = true;

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if ( empty( $this->license ) ) {

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$alerts[] = [

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'code' => 'license_not_valid',

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'message' => sprintf( __( 'One or more of your extensions are missing license keys. You will not be able to receive updates until the extension has a valid license key entered. Please go to the %1$sLicenses page%2$s to add your license keys.', 'popup-maker' ), '<a href="' . admin_url( 'edit.php?post_type=popup&page=pum-settings&tab=licenses' ) . '">', '</a>' ),

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'type' => 'error',

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'dismissible' => '4 weeks',

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'priority' => 0,

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];

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} else {

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$alerts[] = [

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'code' => 'license_not_valid',

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'message' => sprintf( __( 'You have invalid or expired license keys for Popup Maker. Please go to the %1$sLicenses page%2$s to correct this issue.', 'popup-maker' ), '<a href="' . admin_url( 'edit.php?post_type=popup&page=pum-settings&tab=licenses' ) . '">', '</a>' ),

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'type' => 'error',

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'dismissible' => '4 weeks',

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'priority' => 0,

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];

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}

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return $alerts;

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}

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/**

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* Admin notices for errors

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*

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* @access public

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* @return void

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*/

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public function notices() {

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static $showed_invalid_message;

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if ( empty( $this->license ) ) {

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return;

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}

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if ( ! current_user_can( 'manage_options' ) || $showed_invalid_message ) {

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return;

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}

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$messages = [];

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$license = get_option( $this->item_shortname . '_license_active' );

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if ( is_object( $license ) && 'valid' !== $license->license ) {

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if ( empty( $_GET['tab'] ) || 'licenses' !== $_GET['tab'] ) {

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$messages[] = sprintf( __( 'You have invalid or expired license keys for Popup Maker. Please go to the %1$sLicenses page%2$s to correct this issue.', 'popup-maker' ), '<a href="' . admin_url( 'edit.php?post_type=popup&page=pum-settings&tab=licenses' ) . '">', '</a>' );

[485] Fix | Delete

[486] Fix | Delete

$showed_invalid_message = true;

[487] Fix | Delete

[488] Fix | Delete

}

[489] Fix | Delete

}

[490] Fix | Delete

[491] Fix | Delete

if ( ! empty( $messages ) ) {

[492] Fix | Delete

[493] Fix | Delete

foreach ( $messages as $message ) {

[494] Fix | Delete

[495] Fix | Delete

echo '<div class="error">';

[496] Fix | Delete

echo '<p>' . esc_html( $message ) . '</p>';

[497] Fix | Delete

echo '</div>';

[498] Fix | Delete

[499] Fix | Delete