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<?php |
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/** |
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* @package Polylang |
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*/ |
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|
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/** |
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* A class to easily manage licenses for Polylang Pro and addons |
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* |
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* @since 1.9 |
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*/ |
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class PLL_License { |
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/** |
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* URL to Polylang's account page. |
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* |
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* @var string |
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*/ |
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public const ACCOUNT_URL = 'https://polylang.pro/my-account/'; |
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|
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/** |
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* Sanitized plugin name. |
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* |
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* @var string |
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*/ |
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public $id; |
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|
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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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public $name; |
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|
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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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public $license_key; |
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|
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/** |
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* License data, obtained from the API request. |
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* |
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* @var stdClass|null |
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*/ |
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public $license_data; |
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|
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/** |
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* Main 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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/** |
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* Current 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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/** |
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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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/** |
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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://polylang.pro'; |
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|
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/** |
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* Constructor |
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* |
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* @since 1.9 |
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* |
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* @param string $file The plugin file. |
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* @param string $item_name The plugin name. |
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* @param string $version The plugin version. |
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* @param string $author Author name. |
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* @param string $api_url Optional url of the site managing the license. |
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*/ |
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public function __construct( $file, $item_name, $version, $author, $api_url = null ) { |
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$this->id = sanitize_title( $item_name ); |
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$this->file = $file; |
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$this->name = $item_name; |
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$this->version = $version; |
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$this->author = $author; |
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$this->api_url = empty( $api_url ) ? $this->api_url : $api_url; |
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|
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$licenses = (array) get_option( 'polylang_licenses', array() ); |
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$license = isset( $licenses[ $this->id ] ) && is_array( $licenses[ $this->id ] ) ? $licenses[ $this->id ] : array(); |
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$this->license_key = ! empty( $license['key'] ) ? (string) $license['key'] : ''; |
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|
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if ( ! empty( $license['data'] ) ) { |
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$this->license_data = (object) $license['data']; |
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} |
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|
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// Updater |
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$this->auto_updater(); |
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|
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// Register settings |
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add_filter( 'pll_settings_licenses', array( $this, 'settings' ) ); |
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|
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// Weekly schedule |
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if ( ! wp_next_scheduled( 'polylang_check_licenses' ) ) { |
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wp_schedule_event( time(), 'weekly', 'polylang_check_licenses' ); |
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} |
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|
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add_action( 'polylang_check_licenses', array( $this, 'check_license' ) ); |
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} |
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|
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/** |
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* Auto updater |
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* |
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* @since 1.9 |
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* |
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* @return void |
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*/ |
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public function auto_updater() { |
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$args = array( |
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'version' => $this->version, |
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'license' => $this->license_key, |
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'author' => $this->author, |
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'item_name' => $this->name, |
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); |
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|
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// Setup the updater |
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new PLL_Plugin_Updater( $this->api_url, $this->file, $args ); |
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} |
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|
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/** |
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* Registers the licence in the Settings. |
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* |
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* @since 1.9 |
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* |
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* @param PLL_License[] $items Array of objects allowing to manage a license. |
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* @return PLL_License[] |
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*/ |
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public function settings( $items ) { |
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$items[ $this->id ] = $this; |
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return $items; |
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} |
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|
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/** |
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* Activates the license key. |
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* |
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* @since 1.9 |
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* |
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* @param string $license_key Activation key. |
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* @return PLL_License Updated PLL_License object. |
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*/ |
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public function activate_license( $license_key ) { |
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$this->license_key = $license_key; |
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$this->api_request( 'activate_license' ); |
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|
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// Tell WordPress to look for updates. |
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delete_site_transient( 'update_plugins' ); |
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return $this; |
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} |
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|
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|
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/** |
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* Deactivates the license key. |
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* |
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* @since 1.9 |
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* |
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* @return PLL_License Updated PLL_License object. |
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*/ |
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public function deactivate_license() { |
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$this->api_request( 'deactivate_license' ); |
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return $this; |
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} |
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|
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/** |
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* Checks if the license key is valid. |
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* |
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* @since 1.9 |
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* |
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* @return void |
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*/ |
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public function check_license() { |
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$this->api_request( 'check_license' ); |
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} |
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|
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/** |
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* Sends an api request to check, activate or deactivate the license |
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* Updates the licenses option according to the status |
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* |
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* @since 1.9 |
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* |
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* @param string $request check_license | activate_license | deactivate_license |
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* @return void |
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*/ |
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private function api_request( $request ) { |
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$licenses = get_option( 'polylang_licenses' ); |
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|
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if ( is_array( $licenses ) ) { |
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unset( $licenses[ $this->id ] ); |
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} else { |
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$licenses = array(); |
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} |
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unset( $this->license_data ); |
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|
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if ( ! empty( $this->license_key ) ) { |
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// Data to send in our API request |
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$api_params = array( |
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'edd_action' => $request, |
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'license' => $this->license_key, |
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'item_name' => urlencode( $this->name ), |
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'url' => home_url(), |
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); |
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|
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// Call the API |
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$response = wp_remote_post( |
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$this->api_url, |
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array( |
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'timeout' => 3, |
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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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|
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// Update the option only if we got a response |
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if ( is_wp_error( $response ) ) { |
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return; |
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} |
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|
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// Save new license info |
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$licenses[ $this->id ] = array( 'key' => $this->license_key ); |
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$data = (object) json_decode( wp_remote_retrieve_body( $response ) ); |
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|
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if ( isset( $data->license ) && 'deactivated' !== $data->license ) { |
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$licenses[ $this->id ]['data'] = $this->license_data = $data; |
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} |
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} |
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|
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update_option( 'polylang_licenses', $licenses ); // FIXME called multiple times when saving all licenses |
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} |
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|
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/** |
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* Get the html form field in a table row (one per license key) for display |
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* |
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* @since 2.7 |
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* |
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* @return string |
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*/ |
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public function get_form_field() { |
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if ( ! empty( $this->license_data ) ) { |
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$license = $this->license_data; |
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} |
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|
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$class = 'license-null'; |
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$message = ''; |
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|
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$out = sprintf( |
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'<td><label for="pll-licenses[%1$s]">%2$s</label></td>' . |
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'<td><input name="licenses[%1$s]" id="pll-licenses[%1$s]" type="password" value="%3$s" class="regular-text code" />', |
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esc_attr( $this->id ), |
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esc_attr( $this->name ), |
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esc_html( $this->license_key ) |
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); |
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|
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if ( ! empty( $license ) && is_object( $license ) ) { |
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$now = time(); |
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$expiration = isset( $license->expires ) ? strtotime( $license->expires ) : false; |
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|
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// Special case: the license expired after the last check |
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if ( $license->success && $expiration && $expiration < $now ) { |
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$license->success = false; |
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$license->error = 'expired'; |
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} |
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|
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if ( false === $license->success ) { |
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$class = 'notice-error notice-alt'; |
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|
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switch ( $license->error ) { |
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case 'expired': |
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$message = sprintf( |
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/* translators: %1$s is a date, %2$s is link start tag, %3$s is link end tag. */ |
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esc_html__( 'Your license key expired on %1$s. Please %2$srenew your license key%3$s.', 'polylang' ), |
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esc_html( date_i18n( get_option( 'date_format' ), $expiration ) ), |
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sprintf( '<a href="%s" target="_blank">', self::ACCOUNT_URL ), |
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'</a>' |
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); |
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break; |
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|
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case 'disabled': |
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case 'revoked': |
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$message = esc_html__( 'Your license key has been disabled.', 'polylang' ); |
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break; |
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|
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case 'missing': |
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$message = sprintf( |
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/* translators: %1$s is link start tag, %2$s is link end tag. */ |
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esc_html__( 'Invalid license. Please %1$svisit your account page%2$s and verify it.', 'polylang' ), |
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sprintf( '<a href="%s" target="_blank">', self::ACCOUNT_URL ), |
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'</a>' |
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); |
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break; |
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|
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case 'invalid': |
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case 'site_inactive': |
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$message = sprintf( |
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/* translators: %1$s is a product name, %2$s is link start tag, %3$s is link end tag. */ |
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esc_html__( 'Your %1$s license key is not active for this URL. Please %2$svisit your account page%3$s to manage your license key URLs.', 'polylang' ), |
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esc_html( $this->name ), |
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sprintf( '<a href="%s" target="_blank">', self::ACCOUNT_URL ), |
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'</a>' |
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); |
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break; |
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|
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case 'item_name_mismatch': |
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/* translators: %s is a product name */ |
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$message = sprintf( esc_html__( 'This is not a %s license key.', 'polylang' ), esc_html( $this->name ) ); |
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break; |
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|
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case 'no_activations_left': |
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$message = sprintf( |
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/* translators: %1$s is link start tag, %2$s is link end tag */ |
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esc_html__( 'Your license key has reached its activation limit. %1$sView possible upgrades%2$s now.', 'polylang' ), |
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sprintf( '<a href="%s" target="_blank">', self::ACCOUNT_URL ), |
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'</a>' |
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); |
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break; |
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} |
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} else { |
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$class = 'license-valid'; |
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|
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$out .= sprintf( '<button id="deactivate_%s" type="button" class="button button-secondary pll-deactivate-license">%s</button>', esc_attr( $this->id ), esc_html__( 'Deactivate', 'polylang' ) ); |
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|
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if ( 'lifetime' === $license->expires ) { |
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$message = esc_html__( 'The license key never expires.', 'polylang' ); |
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} elseif ( $expiration > $now && $expiration - $now < ( DAY_IN_SECONDS * 30 ) ) { |
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$class = 'notice-warning notice-alt'; |
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$message = sprintf( |
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/* translators: %1$s is a date, %2$s is link start tag, %3$s is link end tag. */ |
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esc_html__( 'Your license key will expire soon! Precisely, it will expire on %1$s. %2$sRenew your license key today!%3$s', 'polylang' ), |
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esc_html( date_i18n( get_option( 'date_format' ), $expiration ) ), |
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sprintf( '<a href="%s" target="_blank">', self::ACCOUNT_URL ), |
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'</a>' |
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); |
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} else { |
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$message = sprintf( |
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/* translators: %s is a date */ |
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esc_html__( 'Your license key expires on %s.', 'polylang' ), |
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esc_html( date_i18n( get_option( 'date_format' ), $expiration ) ) |
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); |
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} |
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} |
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} |
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|
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if ( ! empty( $message ) ) { |
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$out .= '<p>' . $message . '</p>'; |
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} |
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|
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return sprintf( '<tr id="pll-license-%s" class="%s">%s</tr>', esc_attr( $this->id ), $class, $out ); |
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} |
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} |
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|
