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<?php namespace EmailLog\Addon\License; |
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use EmailLog\Addon\API\EDDAPI; |
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defined( 'ABSPATH' ) || exit; // Exit if accessed directly. |
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/** |
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* Base class for for Bundle License and Add-on License. |
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* |
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* @since 2.0.0 |
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*/ |
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abstract class BaseLicense { |
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protected $addon_name; |
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protected $license_key; |
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protected $license_data; |
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/** |
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* EDD API Wrapper. |
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* |
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* @var \EmailLog\Addon\API\EDDAPI |
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*/ |
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protected $edd_api; |
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/** |
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* Is the license activated and valid? |
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* |
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* @return bool True if license is active, False otherwise. |
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*/ |
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abstract public function is_valid(); |
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/** |
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* Get the option name in which license data will be stored. |
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* |
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* @return string Option name. |
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*/ |
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abstract protected function get_option_name(); |
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/** |
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* Construct a new License object. |
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* If the API Wrapper is not provided, then a new one is initialized. |
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* |
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* @param \EmailLog\Addon\API\EDDAPI|null $edd_api (Optional) EDD API Wrapper instance. Default is null. |
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*/ |
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public function __construct( $edd_api = null ) { |
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if ( is_null( $edd_api ) ) { |
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$edd_api = new EDDAPI(); |
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} |
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$this->edd_api = $edd_api; |
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} |
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/** |
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* Set the license Key. |
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* |
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* @param string $license_key License Key. |
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*/ |
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public function set_license_key( $license_key ) { |
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$this->license_key = $license_key; |
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} |
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/** |
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* Get the license key. |
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* |
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* @return string|null License Key. |
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*/ |
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public function get_license_key() { |
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return $this->license_key; |
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} |
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/** |
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* Set add-on name. |
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* |
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* @param string $addon_name Add-on Name. |
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*/ |
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public function set_addon_name( $addon_name ) { |
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$this->addon_name = $addon_name; |
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} |
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/** |
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* Get the add-on name. |
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* |
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* @return string Add-on name. |
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*/ |
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public function get_addon_name() { |
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return $this->addon_name; |
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} |
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/** |
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* Get the expiry date of the license. |
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* |
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* @return false|string Expiry date in `yyyy-mm-dd hh:mm:ss` format if license is valid, False otherwise. |
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*/ |
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public function get_expiry_date() { |
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if ( ! empty( $this->license_data ) && isset( $this->license_data->expires ) ) { |
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return $this->license_data->expires; |
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} |
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return false; |
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} |
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/** |
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* Activate License by calling EDD API. |
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* The license data returned by API is stored in an option. |
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* |
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* @throws \Exception In case of communication errors or License Issues. |
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* |
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* @return object API Response JSON Object. |
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*/ |
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public function activate() { |
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$response = $this->edd_api->activate_license( $this->get_license_key(), $this->get_addon_name() ); |
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if ( $response->success && 'valid' === $response->license ) { |
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$response->license_key = $this->get_license_key(); |
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$this->store( $response ); |
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return $response; |
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} |
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switch ( $response->error ) { |
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case 'expired': |
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$message = sprintf( |
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__( 'Your license key expired on %s.' , 'email-log'), |
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date_i18n( get_option( 'date_format' ), strtotime( $response->expires, current_time( 'timestamp' ) ) ) |
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); |
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break; |
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case 'revoked': |
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$message = __( 'Your license key has been disabled.' , 'email-log'); |
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break; |
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case 'missing': |
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$message = __( 'Your license key is invalid.' , 'email-log'); |
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break; |
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case 'invalid': |
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case 'site_inactive': |
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$message = __( 'Your license is not active for this URL.' , 'email-log'); |
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break; |
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case 'item_name_mismatch': |
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$message = sprintf( __( 'Your license key is not valid for %s.' , 'email-log'), $this->get_addon_name() ); |
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break; |
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case 'no_activations_left': |
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$message = __( 'Your license key has reached its activation limit.' , 'email-log'); |
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break; |
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default: |
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$message = __( 'An error occurred, please try again.' , 'email-log'); |
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break; |
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} |
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throw new \Exception( $message ); |
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} |
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/** |
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* Deactivate the license by calling EDD API. |
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* The stored license data will be cleared. |
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* |
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* @throws \Exception In case of communication errors. |
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* |
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* @return object API Response JSON object. |
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*/ |
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public function deactivate() { |
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$response = $this->edd_api->deactivate_license( $this->get_license_key(), $this->get_addon_name() ); |
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if ( $response->success && 'deactivated' === $response->license ) { |
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$this->clear(); |
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return $response; |
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} |
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$message = __( 'An error occurred, please try again.', 'email-log' ); |
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if ( isset( $response->error ) ) { |
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$message .= ' ' . $response->error; |
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} |
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throw new \Exception( $message ); |
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} |
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/** |
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* Get version information by calling EDD API. |
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* // TODO: Currently not used. Will be removed eventually. |
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* |
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* @throws \Exception In case of communication errors. |
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* |
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* @return object API Response JSON Object. |
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*/ |
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public function get_version() { |
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$response = $this->edd_api->get_version( $this->get_license_key(), $this->get_addon_name() ); |
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if ( isset( $response->new_version ) && ! isset( $response->msg ) ) { |
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return $response; |
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} |
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$message = __( 'An error occurred, please try again', 'email-log' ) . $response->error; |
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throw new \Exception( $message ); |
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} |
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/** |
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* Load the license data from DB option. |
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*/ |
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public function load() { |
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$this->license_data = get_option( $this->get_option_name(), null ); |
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} |
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/** |
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* Store License data in DB option. |
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* |
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* @access protected |
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* |
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* @param object $license_data License data. |
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*/ |
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protected function store( $license_data ) { |
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$this->license_data = $license_data; |
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update_option( $this->get_option_name(), $license_data ); |
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} |
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/** |
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* Clear stored license data. |
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* |
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* @access protected |
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*/ |
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protected function clear() { |
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$this->license_data = null; |
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$this->license_key = null; |
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delete_option( $this->get_option_name() ); |
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} |
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} |
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