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                <?php  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                if ( ! defined( 'ABSPATH' ) ) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	exit;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    5
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                }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                class WC_Services_Installer { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	/**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 * @var Jetpack  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 **/  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	private $jetpack;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	/**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 * @var WC_Services_Installer  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 **/  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	private static $instance = null;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	static function init() { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		if ( is_null( self::$instance ) ) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                			self::$instance = new WC_Services_Installer();  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		}  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		return self::$instance;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	}  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	public function __construct() { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		$this->jetpack = Jetpack::init();  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		add_action( 'admin_init', array( $this, 'add_error_notice' ) );  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		add_action( 'admin_init', array( $this, 'try_install' ) );  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	}  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	/**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 * Verify the intent to install WooCommerce Services, and kick off installation.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	public function try_install() { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		if ( ! isset( $_GET['wc-services-action'] ) ) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                			return;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		}  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		check_admin_referer( 'wc-services-install' );  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		$result = false;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		switch ( $_GET['wc-services-action'] ) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                			case 'install':  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                				if ( current_user_can( 'install_plugins' ) ) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                					$this->jetpack->stat( 'jitm', 'wooservices-install-' . JETPACK__VERSION );  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                					$result = $this->install();  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                					if ( $result ) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                						$result = $this->activate();  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                					}  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                				}  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                				break;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                			case 'activate':  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                				if ( current_user_can( 'activate_plugins' ) ) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                					$this->jetpack->stat( 'jitm', 'wooservices-activate-' . JETPACK__VERSION );  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                					$result = $this->activate();  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                				}  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                				break;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		}  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		$redirect = wp_get_referer();  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		if ( $result ) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                			$this->jetpack->stat( 'jitm', 'wooservices-activated-' . JETPACK__VERSION );  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		} else { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                			$redirect = add_query_arg( 'wc-services-install-error', true, $redirect );  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		}  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		wp_safe_redirect( $redirect );  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		exit;  | 
            
                            
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                	}  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	/**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 * Set up installation error admin notice.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	public function add_error_notice() { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		if ( ! empty( $_GET['wc-services-install-error'] ) ) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                			add_action( 'admin_notices', array( $this, 'error_notice' ) );  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		}  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	}  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	/**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    86
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                	 * Notify the user that the installation of WooCommerce Services failed.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    88
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                	public function error_notice() { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    89
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                		?>  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    90
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                		<div class="notice notice-error is-dismissible">  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                			<p><?php _e( 'There was an error installing WooCommerce Services.', 'jetpack' ); ?></p>  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		</div>  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		<?php  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	}  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	/**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    97
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                	 * Download and install the WooCommerce Services plugin.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	 * @return bool result of installation  | 
            
            
                                                                                                            
                                                                
            
                                    
            
            
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                	 */  | 
            
            
                                                                        
                            
            
                                    
            
            
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                    101
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                	private function install() { | 
            
            
                                                                        
                            
            
                                    
            
            
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                    102
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                		include_once( ABSPATH . '/wp-admin/includes/admin.php' );  | 
            
            
                                                                        
                            
            
                                    
            
            
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                    103
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                		include_once( ABSPATH . '/wp-admin/includes/plugin-install.php' );  | 
            
            
                                                                        
                            
            
                                    
            
            
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                    104
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                		include_once( ABSPATH . '/wp-admin/includes/plugin.php' );  | 
            
            
                                                                        
                            
            
                                    
            
            
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                    105
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                		include_once( ABSPATH . '/wp-admin/includes/class-wp-upgrader.php' );  | 
            
            
                                                                        
                            
            
                                    
            
            
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                    106
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                		include_once( ABSPATH . '/wp-admin/includes/class-plugin-upgrader.php' );  | 
            
            
                                                                        
                            
            
                                    
            
            
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                    107
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                    108
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                		$api = plugins_api( 'plugin_information', array( 'slug' => 'woocommerce-services' ) );  | 
            
            
                                                                        
                            
            
                                    
            
            
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                    110
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                		if ( is_wp_error( $api ) ) { | 
            
            
                                                                        
                            
            
                                    
            
            
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                			return false;  | 
            
            
                                                                        
                            
            
                                    
            
            
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                    112
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                		}  | 
            
            
                                                                        
                            
            
                                    
            
            
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                    113
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                    114
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                		$upgrader = new Plugin_Upgrader( new Automatic_Upgrader_Skin() );  | 
            
            
                                                                        
                            
            
                                    
            
            
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                    115
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                		$result   = $upgrader->install( $api->download_link );  | 
            
            
                                                                        
                            
            
                                    
            
            
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                    117
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                		return true === $result;  | 
            
            
                                                                        
                            
            
                                    
            
            
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                    118
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                	}  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    119
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                    120
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                	/**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    121
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                	 * Activate the WooCommerce Services plugin.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    122
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                	 *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    123
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                	 * @return bool result of activation  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    124
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                	 */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    125
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                	private function activate() { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    126
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                		$result = activate_plugin( 'woocommerce-services/woocommerce-services.php' );  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    127
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                    128
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                		// activate_plugin() returns null on success  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    129
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                		return is_null( $result );  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    130
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                	}  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    131
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                }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    132
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                    133
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                WC_Services_Installer::init();  | 
            
            
                                                        
            
                                    
            
            
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                    134
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An exit expression should only be used in rare cases. For example, if you write a short command line script.
In most cases however, using an
exitexpression makes the code untestable and often causes incompatibilities with other libraries. Thus, unless you are absolutely sure it is required here, we recommend to refactor your code to avoid its usage.