installed plugin Easy Digital Downloads version 3.1.0.3

wp-content/plugins/easy-digital-downloads/includes/extensions/ExtensionRegistry.php

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+<?php
+/**
+ * License Registry
+ *
+ * Responsible for holding information about premium EDD extensions in use on this site.
+ *
+ * @package   easy-digital-downloads
+ * @copyright Copyright (c) 2021, Easy Digital Downloads
+ * @license   GPL2+
+ * @since     2.11.4
+ */
+
+namespace EDD\Extensions;
+
+class ExtensionRegistry extends \ArrayObject {
+
+	/**
+	 * Adds an extension to the registry.
+	 *
+	 * @since 2.11.4
+	 *
+	 * @param string      $pluginFile     Path to the plugin's main file.
+	 * @param string      $pluginName     Display name of the plugin.
+	 * @param int         $pluginId       EDD product ID for the plugin.
+	 * @param string      $currentVersion Current version number.
+	 * @param string|null $optionName     Option name where the license key is stored. If omitted, automatically generated.
+	 */
+	public function addExtension( $pluginFile, $pluginName, $pluginId, $currentVersion, $optionName = null ) {
+		if ( $this->offsetExists( $pluginId ) ) {
+			throw new \InvalidArgumentException( sprintf(
+				'The extension %d is already registered.',
+				$pluginId
+			) );
+		}
+
+		$this->offsetSet(
+			$pluginId,
+			new \EDD_License( $pluginFile, $pluginName, $currentVersion, 'Easy Digital Downloads', $optionName, null, $pluginId )
+		);
+	}
+
+	/**
+	 * Returns all registered extensions, regardless of whether they have licenses activated.
+	 *
+	 * At some point we could make this public, just making it private for now so that we have
+	 * flexibility to change exactly what it returns in the future.
+	 *
+	 * @since 2.11.4
+	 *
+	 * @return \EDD_License[]
+	 */
+	private function getExtensions() {
+		return $this->getArrayCopy();
+	}
+
+	/**
+	 * Counts the number of licensed extensions active on this site.
+	 * Note: This only looks at extensions registered via this registry, then filters down
+	 * to those that have a license key entered. It does not check to verify if the license
+	 * key is actually valid / not expired.
+	 *
+	 * @since 2.11.4
+	 *
+	 * @return int
+	 */
+	public function countLicensedExtensions() {
+		$licensedExtensions = array_filter( $this->getExtensions(), function ( \EDD_License $license ) {
+			return ! empty( $license->license );
+		} );
+
+		return count( $licensedExtensions );
+	}
+
+}

wp-content/plugins/easy-digital-downloads/includes/extensions/licensing-functions.php

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+<?php
+/**
+ * Licensing Functions
+ *
+ * Functions used for saving and/or retrieving information about EDD licensed products
+ * running on the site.
+ *
+ * @package   easy-digital-downloads
+ * @copyright Copyright (c) 2021, Easy Digital Downloads
+ * @license   GPL2+
+ * @since     2.11.4
+ */
+
+namespace EDD\Extensions;
+
+/**
+ * Saves an option in the database with the information from the `$edd_licensed_products`
+ * global. This only runs in the context of WP-Admin, because that's the only place we
+ * can be certain that the information is accurate.
+ *
+ * @link https://github.com/awesomemotive/easy-digital-downloads/issues/8969
+ *
+ * @global $edd_licensed_products
+ */
+add_action( 'admin_init', function () {
+	if ( ! is_admin() ) {
+		return;
+	}
+
+	$saved_products = get_option( 'edd_licensed_extensions', array() );
+
+	/*
+	 * We only want to update this option once per day. If the timeout has expired
+	 * then update it with product information.
+	 *
+	 * Note: We always save this option, even if `$edd_licensed_products` is empty.
+	 * This is to help designate that the information has been checked and saved,
+	 * even if there are no licensed products.
+	 */
+	if ( empty( $saved_products['timeout'] ) || $saved_products['timeout'] < time() ) {
+		global $edd_licensed_products;
+
+		update_option( 'edd_licensed_extensions', json_encode( array(
+			'timeout'  => strtotime( '+1 day' ),
+			'products' => $edd_licensed_products,
+		) ) );
+	}
+}, 200 );
+
+/**
+ * Returns licensed EDD extensions that are active on this site.
+ * Array values are the `$item_shortname` from `\EDD_License`
+ *
+ * @see \EDD_License::$item_shortname
+ *
+ * @since 2.11.4
+ * @return array
+ */
+function get_licensed_extension_slugs() {
+	$products = get_option( 'edd_licensed_extensions' );
+
+	/*
+	 * If this isn't set for some reason, fall back to trying the global. There are
+	 * probably a very limited number of cases where the option would be empty when
+	 * the global is not, but worth a shot.
+	 */
+	if ( empty( $products ) ) {
+		global $edd_licensed_products;
+
+		return ! empty( $edd_licensed_products ) && is_array( $edd_licensed_products )
+			? $edd_licensed_products
+			: array();
+	}
+
+	$products = json_decode( $products, true );
+
+	return isset( $products['products'] ) && is_array( $products['products'] )
+		? $products['products']
+		: array();
+}
+
+/**
+ * Triggers our hook for registering extensions.
+ * This needs to run after all plugins have definitely been loaded.
+ *
+ * @since 2.11.4
+ */
+add_action( 'plugins_loaded', function() {
+	/**
+	 * Extensions should hook in here to register themselves.
+	 *
+	 * @since 2.11.4
+	 *
+	 * @param ExtensionRegistry
+	 */
+	do_action( 'edd_extension_license_init', EDD()->extensionRegistry );
+}, PHP_INT_MAX );