877 lines
22 KiB
PHP
877 lines
22 KiB
PHP
<?php
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/**
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* Tool allowing 3rd party WordPress plugins to handle partnership with Imagify.
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*
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* @package wp-media/wp-imagify-partner
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*/
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defined( 'ABSPATH' ) || exit;
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if ( ! class_exists( 'Imagify_Partner' ) ) :
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/**
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* Class allowing to download, install, and activate Imagify plugin.
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*
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* @author Grégory Viguier
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*/
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class Imagify_Partner {
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/**
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* Class version.
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*
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* @var string
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*/
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const VERSION = '1.0';
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/**
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* Name of the option that stores the partner identifier.
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*
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* @var string
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*/
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const OPTION_NAME = 'imagifyp_id';
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/**
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* Name of the transient that stores the error messages.
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*
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* @var string
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*/
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const ERROR_TRANSIENT_NAME = 'imagifyp_error';
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/**
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* Name of the URL argument used on success.
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*
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* @var string
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*/
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const SUCCESS_ARG = 'imp-success';
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/**
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* Name of the URL argument used to display an error notice.
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*
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* @var string
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*/
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const ERROR_ARG = 'imp-error';
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/**
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* ID of the nonce used to install Imagify.
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*
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* @var string
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*/
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const NONCE_NAME = 'install_imagify_from_partner';
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/**
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* Message used as fallback in get_message().
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*
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* @var string
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*/
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const FALLBACK_MESSAGE = 'Unknown message';
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/**
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* Partner identifier.
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*
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* @var string
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* @access protected
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*/
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protected $partner;
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/** ----------------------------------------------------------------------------------------- */
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/** INSTANCE, INIT ========================================================================== */
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/** ----------------------------------------------------------------------------------------- */
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/**
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* Class constructor: sanitize and set the partner identifier.
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*
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* @since 1.0
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* @access public
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* @author Grégory Viguier
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*
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* @param string $partner Partner identifier.
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*/
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public function __construct( $partner ) {
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$this->partner = self::sanitize_partner( $partner );
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}
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/**
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* Class init.
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*
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* @since 1.0
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* @access public
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* @author Grégory Viguier
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*/
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public function init() {
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if ( ! $this->get_partner() ) {
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return;
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}
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if ( ! is_admin() ) {
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return;
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}
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if ( ! self::has_imagify_api_key() ) {
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add_action( 'wp_ajax_' . $this->get_post_action(), array( $this, 'post_callback' ) );
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add_action( 'admin_post_' . $this->get_post_action(), array( $this, 'post_callback' ) );
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}
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if ( self::is_success() || self::is_error() ) {
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add_action( 'all_admin_notices', array( __CLASS__, 'error_notice' ) );
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add_filter( 'removable_query_args', array( __CLASS__, 'add_query_args' ) );
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}
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}
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/** ----------------------------------------------------------------------------------------- */
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/** MAIN PUBLIC TOOLS ======================================================================= */
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/** ----------------------------------------------------------------------------------------- */
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/**
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* Tell if Imagify's API key is set.
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*
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* @since 1.0
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* @access public
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* @author Grégory Viguier
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*
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* @return bool
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*/
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public static function has_imagify_api_key() {
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static $has;
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if ( isset( $has ) ) {
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return $has;
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}
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if ( function_exists( 'get_imagify_option' ) ) {
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// Imagify is already installed and activated.
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$has = (bool) get_imagify_option( 'api_key' );
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return $has;
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}
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if ( defined( 'IMAGIFY_API_KEY' ) && IMAGIFY_API_KEY ) {
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// It's defined in wp-config.php.
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$has = true;
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return $has;
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}
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if ( ! is_multisite() ) {
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// Monosite: grab the value from the options table.
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$options = get_option( 'imagify_settings' );
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$has = ! empty( $options['api_key'] );
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return $has;
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}
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$options = get_site_option( 'imagify_settings' );
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if ( ! empty( $options['api_key'] ) ) {
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// Multisite: Imagify was activated in the network.
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$has = true;
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return $has;
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}
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// Multisite: Imagify was activated for this site.
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$options = get_option( 'imagify_settings' );
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$has = ! empty( $options['api_key'] );
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return $has;
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}
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/**
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* Tell if Imagify is activated.
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*
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* @since 1.0
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* @access public
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* @author Grégory Viguier
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*
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* @return bool
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*/
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public static function is_imagify_activated() {
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return defined( 'IMAGIFY_VERSION' );
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}
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/**
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* Tell if Imagify is installed.
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*
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* @since 1.0
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* @access public
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* @author Grégory Viguier
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*
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* @return bool
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*/
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public static function is_imagify_installed() {
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if ( self::is_imagify_activated() ) {
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return true;
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}
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return file_exists( self::get_imagify_path() );
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}
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/**
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* Tell if Imagify has been successfully installed.
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*
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* @since 1.0
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* @access public
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* @author Grégory Viguier
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*
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* @return bool
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*/
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public static function is_success() {
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return ! empty( $_GET[ self::SUCCESS_ARG ] ); // WPCS: CSRF ok.
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}
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/**
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* Tell if Imagify install failed.
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*
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* @since 1.0
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* @access public
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* @author Grégory Viguier
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*
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* @return bool
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*/
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public static function is_error() {
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return ! empty( $_GET[ self::ERROR_ARG ] ); // WPCS: CSRF ok.
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}
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/**
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* Get the URL to install and activate Imagify.
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*
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* @since 1.0
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* @access public
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* @author Grégory Viguier
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*
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* @return string The URL.
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*/
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public function get_post_install_url() {
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if ( ! $this->get_partner() || ! self::current_user_can() ) {
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return '';
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}
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$install_url = admin_url( 'admin-post.php' );
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$args = array(
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'action' => $this->get_post_action(),
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'_wpnonce' => wp_create_nonce( self::NONCE_NAME ),
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// To make sure we have a referrer.
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'_wp_http_referer' => rawurlencode( self::get_current_url() ),
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);
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return add_query_arg( $args, $install_url );
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}
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/**
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* Get the partner identifier.
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*
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* @since 1.0
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* @access public
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* @author Grégory Viguier
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*
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* @return string Partner identifier.
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*/
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public function get_partner() {
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return $this->partner;
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}
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/** ----------------------------------------------------------------------------------------- */
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/** HOOKS =================================================================================== */
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/** ----------------------------------------------------------------------------------------- */
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/**
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* Post callback to install and activate Imagify.
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*
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* @since 1.0
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* @access public
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* @author Grégory Viguier
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*/
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public function post_callback() {
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if ( ! check_ajax_referer( self::NONCE_NAME, '_wpnonce', false ) ) {
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$this->error_die();
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}
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if ( ! self::current_user_can() ) {
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$this->error_die( 'cant_install' );
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}
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/**
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* Store the partner ID before doing anything.
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* If something goes wrong during the plugin installation, the partner ID will still be saved.
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*/
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self::store_partner( $this->get_partner() );
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// Install Imagify.
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$result = $this->install_imagify();
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if ( is_wp_error( $result ) ) {
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// Install failed.
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if ( self::doing_ajax() ) {
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$this->send_json_error( $result );
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}
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// Redirect to the plugins search page.
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$this->error_redirect( $result );
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}
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// Activate Imagify.
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$result = $this->activate_imagify();
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if ( is_wp_error( $result ) ) {
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// Activation failed.
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if ( self::doing_ajax() ) {
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$this->send_json_error( $result );
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}
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// Redirect to the plugins search page.
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$this->error_redirect( $result );
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}
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if ( self::doing_ajax() ) {
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$this->send_json_success();
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}
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// Redirect to the partner's page.
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$this->success_redirect();
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}
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/**
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* Maybe print an error notice on the plugins install page.
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* We add the query argument we use to display an error message.
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*
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* @since 1.0
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* @access public
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* @author Grégory Viguier
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*/
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public static function error_notice() {
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if ( ! self::is_error() ) {
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// No URL argument.
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return;
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}
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$screen = get_current_screen();
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if ( ! $screen || 'plugin-install' !== $screen->id ) {
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// Not the good page.
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return;
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}
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$partner = self::get_stored_partner();
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if ( ! $partner ) {
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// No partner stored in the database.
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return;
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}
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$errors = get_transient( self::ERROR_TRANSIENT_NAME );
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if ( ! $errors ) {
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// No error messages.
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return;
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}
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if ( ! is_wp_error( $errors ) ) {
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// Invalid value.
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delete_transient( self::ERROR_TRANSIENT_NAME );
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return;
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}
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$errors = $errors->get_error_messages();
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if ( $errors ) {
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foreach ( $errors as $i => $error ) {
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if ( self::FALLBACK_MESSAGE === $error ) {
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unset( $errors[ $i ] );
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}
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}
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}
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if ( ! $errors ) {
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// Add a generic message.
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$instance = new self( $partner );
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$errors[] = $instance->get_message( 'process_failed' );
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}
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echo '<div class="error notice is-dismissible"><p>' . implode( '<br/>', $errors ) . '</p></div>';
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}
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/**
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* Filter the list of query variables to remove from admin area URLs.
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* We add the query arguments we use on success or error.
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*
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* @since 1.0
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* @access public
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* @see wp_removable_query_args()
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* @author Grégory Viguier
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*
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* @param array $removable_query_args An array of query variables to remove from a URL.
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* @return array
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*/
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public static function add_query_args( $removable_query_args ) {
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$removable_query_args[] = self::SUCCESS_ARG;
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$removable_query_args[] = self::ERROR_ARG;
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return $removable_query_args;
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}
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/** ----------------------------------------------------------------------------------------- */
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/** INFOS, INSTALL, ACTIVATE ================================================================ */
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/** ----------------------------------------------------------------------------------------- */
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/**
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* Get Imagify infos from the repository.
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*
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* @since 1.0
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* @access protected
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* @author Grégory Viguier
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*
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* @return object The plugin infos on success. A WP_Error object on failure.
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*/
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protected function get_imagify_infos() {
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static $infos;
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if ( isset( $infos ) ) {
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return $infos;
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}
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require_once ABSPATH . 'wp-admin/includes/plugin-install.php';
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// Get Plugin Infos.
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$infos = plugins_api( 'plugin_information', array(
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'slug' => 'imagify',
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'fields' => array(
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'short_description' => false,
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'sections' => false,
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'rating' => false,
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'ratings' => false,
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'downloaded' => false,
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'last_updated' => false,
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'added' => false,
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'tags' => false,
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'homepage' => false,
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'donate_link' => false,
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),
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) );
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return $infos;
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}
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/**
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* Get the URL to download Imagify.
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*
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* @since 1.0
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* @access protected
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* @author Grégory Viguier
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*
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* @return string The URL. An empty string on error.
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*/
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protected function get_download_url() {
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$infos = $this->get_imagify_infos();
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return ! empty( $infos->download_link ) ? $infos->download_link : '';
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}
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/**
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* Install Imagify.
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*
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* @since 1.0
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* @access protected
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* @author Grégory Viguier
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*
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* @return object|null A WP_Object on failure, null on success.
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*/
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protected function install_imagify() {
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if ( self::is_imagify_installed() ) {
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// Imagify is already installed.
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return null;
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}
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$infos = $this->get_imagify_infos();
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if ( is_wp_error( $infos ) ) {
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return $infos;
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}
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ob_start();
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@set_time_limit( 0 );
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require_once ABSPATH . 'wp-admin/includes/class-wp-upgrader.php';
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$upgrader = new Plugin_Upgrader( new Automatic_Upgrader_Skin() );
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$result = $upgrader->install( $this->get_download_url() );
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ob_end_clean();
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if ( is_wp_error( $result ) ) {
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return $result;
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}
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clearstatcache();
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if ( ! self::is_imagify_installed() ) {
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return new WP_Error( 'process_failed', $this->get_message( 'process_failed' ) );
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}
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return null;
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}
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/**
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* Activate Imagify.
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*
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* @since 1.0
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* @access protected
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* @author Grégory Viguier
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*
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* @return object|null A WP_Object on failure, null on success.
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*/
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protected function activate_imagify() {
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return activate_plugin( self::get_imagify_path(), false, is_multisite() );
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}
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/**
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* Get a message used by the class.
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*
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* @since 1.0
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* @access protected
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* @author Grégory Viguier
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*
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* @param string $message_id A message ID.
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* @return string A message.
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*/
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protected function get_message( $message_id ) {
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$messages = array(
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'success' => __( 'Plugin installed successfully.' ),
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'cant_install' => __( 'Sorry, you are not allowed to install plugins on this site.' ),
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'not_allowed' => __( 'Sorry, you are not allowed to do that.' ),
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'process_failed' => __( 'Plugin install failed.' ),
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'go_back' => __( 'Go back' ),
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);
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/**
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* Filter messages used everywhere in the class.
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* Default messages are already translated by WordPress.
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*
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* @since 1.0
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* @author Grégory Viguier
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*
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* @param array $messages Messages.
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*/
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$messages = apply_filters( 'imagify_partner_messages_' . $this->get_partner(), $messages );
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return ! empty( $messages[ $message_id ] ) ? $messages[ $message_id ] : self::FALLBACK_MESSAGE;
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}
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/** ----------------------------------------------------------------------------------------- */
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/** HANDLE SUCCESS ========================================================================== */
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/** ----------------------------------------------------------------------------------------- */
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/**
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* Send a JSON response back to an Ajax request, indicating success.
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*
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* @since 1.0
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* @access protected
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* @author Grégory Viguier
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*/
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protected function send_json_success() {
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delete_transient( self::ERROR_TRANSIENT_NAME );
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wp_send_json_success( $this->get_message( 'success' ) );
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}
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/**
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* Redirect the user after Imagify is successfully installed and activated.
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*
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* @since 1.0
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* @access protected
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* @author Grégory Viguier
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*/
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protected function success_redirect() {
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delete_transient( self::ERROR_TRANSIENT_NAME );
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wp_safe_redirect( esc_url_raw( $this->get_success_redirection_url() ) );
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die();
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}
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/**
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* Get the URL to redirect the user to after Imagify is successfully installed and activated: the referrer (partner's page URL).
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* A "success" argument is added.
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*
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* @since 1.0
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* @access public
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* @author Grégory Viguier
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*
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* @return string
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*/
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public function get_success_redirection_url() {
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$success_url = add_query_arg( array(
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self::SUCCESS_ARG => 1,
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self::ERROR_ARG => false,
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), wp_get_referer() );
|
|
|
|
/**
|
|
* Filter the URL to redirect the user to after Imagify is successfully installed and activated.
|
|
* Default is the partner's page URL.
|
|
*
|
|
* @since 1.0
|
|
* @author Grégory Viguier
|
|
*
|
|
* @param string $success_url The URL.
|
|
*/
|
|
return apply_filters( 'imagify_partner_success_url_' . $this->get_partner(), $success_url );
|
|
}
|
|
|
|
|
|
/** ----------------------------------------------------------------------------------------- */
|
|
/** HANDLE ERROR ============================================================================ */
|
|
/** ----------------------------------------------------------------------------------------- */
|
|
|
|
/**
|
|
* Die on error.
|
|
*
|
|
* @since 1.0
|
|
* @access protected
|
|
* @author Grégory Viguier
|
|
*
|
|
* @param string $message_id An error message ID.
|
|
*/
|
|
protected function error_die( $message_id = 'not_allowed' ) {
|
|
$message = $this->get_message( $message_id );
|
|
|
|
if ( self::doing_ajax() ) {
|
|
$message = new WP_Error( $message_id, $message );
|
|
$this->send_json_error( $message );
|
|
}
|
|
|
|
if ( wp_get_referer() ) {
|
|
$message .= '</p><p>';
|
|
$message .= sprintf( '<a href="%s">%s</a>',
|
|
esc_url( remove_query_arg( 'updated', wp_get_referer() ) ),
|
|
$this->get_message( 'go_back' )
|
|
);
|
|
}
|
|
|
|
wp_die( $message, '', 403 );
|
|
}
|
|
|
|
/**
|
|
* Send a JSON response back to an Ajax request, indicating failure.
|
|
* This is a backward compatible version of wp_send_json_error(): WP_Error object handling was introduced in WP 4.1.
|
|
*
|
|
* @since 1.0
|
|
* @access protected
|
|
* @author Grégory Viguier
|
|
*
|
|
* @param mixed $data Data to encode as JSON, then print and die.
|
|
*/
|
|
protected function send_json_error( $data ) {
|
|
if ( is_wp_error( $data ) ) {
|
|
$result = array();
|
|
foreach ( $data->errors as $code => $messages ) {
|
|
foreach ( $messages as $message ) {
|
|
$result[] = array(
|
|
'code' => $code,
|
|
'message' => $message,
|
|
);
|
|
}
|
|
}
|
|
} else {
|
|
$result = $data;
|
|
}
|
|
|
|
wp_send_json_error( $result );
|
|
}
|
|
|
|
/**
|
|
* Store an error message in a transient then redirect the user.
|
|
*
|
|
* @since 1.0
|
|
* @access protected
|
|
* @author Grégory Viguier
|
|
*
|
|
* @param object $error A WP_Error object.
|
|
*/
|
|
protected function error_redirect( $error ) {
|
|
set_transient( self::ERROR_TRANSIENT_NAME, $error, 30 );
|
|
|
|
wp_safe_redirect( esc_url_raw( $this->get_error_redirection_url() ) );
|
|
die();
|
|
}
|
|
|
|
/**
|
|
* Get the URL to redirect the user to after Imagify installation failure: the plugins search page URL, searching for Imagify.
|
|
* An "error" argument is added, to display an error notice.
|
|
*
|
|
* @since 1.0
|
|
* @access public
|
|
* @author Grégory Viguier
|
|
*
|
|
* @return string
|
|
*/
|
|
public function get_error_redirection_url() {
|
|
$error_url = 'plugin-install.php?s=imagify&tab=search&type=term&' . self::ERROR_ARG . '=1';
|
|
$error_url = is_multisite() ? network_admin_url( $error_url ) : admin_url( $error_url );
|
|
|
|
/**
|
|
* Filter the URL to redirect the user to after Imagify installation failure.
|
|
* Default is the plugins search page URL.
|
|
*
|
|
* @since 1.0
|
|
* @author Grégory Viguier
|
|
*
|
|
* @param string $error_url The URL.
|
|
*/
|
|
return apply_filters( 'imagify_partner_error_url_' . $this->get_partner(), $error_url );
|
|
}
|
|
|
|
|
|
/** ----------------------------------------------------------------------------------------- */
|
|
/** STORING THE PARTNER ID IN DATABASE ====================================================== */
|
|
/** ----------------------------------------------------------------------------------------- */
|
|
|
|
/**
|
|
* Get the partner identifier stored in the Database.
|
|
*
|
|
* @since 1.0
|
|
* @access public
|
|
* @author Grégory Viguier
|
|
*
|
|
* @return string|bool The partner identifier, or false if none is stored.
|
|
*/
|
|
public static function get_stored_partner() {
|
|
$partner = get_option( self::OPTION_NAME );
|
|
|
|
if ( $partner && is_string( $partner ) ) {
|
|
$partner = self::sanitize_partner( $partner );
|
|
}
|
|
|
|
return $partner ? $partner : false;
|
|
}
|
|
|
|
/**
|
|
* Delete the partner identifier stored in the Database.
|
|
*
|
|
* @since 1.0
|
|
* @access public
|
|
* @author Grégory Viguier
|
|
*/
|
|
public static function delete_stored_partner() {
|
|
if ( false !== get_option( self::OPTION_NAME ) ) {
|
|
delete_option( self::OPTION_NAME );
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Store the partner identifier in Database.
|
|
*
|
|
* @since 1.0
|
|
* @access protected
|
|
* @author Grégory Viguier
|
|
*
|
|
* @param string $partner The partner identifier to store.
|
|
*/
|
|
protected static function store_partner( $partner ) {
|
|
if ( false === get_option( self::OPTION_NAME ) ) {
|
|
add_option( self::OPTION_NAME, $partner );
|
|
} else {
|
|
update_option( self::OPTION_NAME, $partner );
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Sanitize a partner ID.
|
|
*
|
|
* @since 1.0
|
|
* @access protected
|
|
* @author Grégory Viguier
|
|
*
|
|
* @param string $partner Partner identifier.
|
|
* @return string
|
|
*/
|
|
protected static function sanitize_partner( $partner ) {
|
|
return preg_replace( '@[^a-z0-9_-]@', '', strtolower( (string) $partner ) );
|
|
}
|
|
|
|
|
|
/** ----------------------------------------------------------------------------------------- */
|
|
/** VARIOUS TOOLS =========================================================================== */
|
|
/** ----------------------------------------------------------------------------------------- */
|
|
|
|
/**
|
|
* Get the action.
|
|
*
|
|
* @since 1.0
|
|
* @access public
|
|
* @author Grégory Viguier
|
|
*
|
|
* @return string Partner identifier.
|
|
*/
|
|
public function get_post_action() {
|
|
return 'install_imagify_from_partner_' . $this->get_partner();
|
|
}
|
|
|
|
/**
|
|
* Determines whether the current request is a WordPress Ajax request.
|
|
* This is a clone of wp_doing_ajax(), intriduced in WP 4.7.
|
|
*
|
|
* @since 1.0
|
|
* @access public
|
|
* @author Grégory Viguier
|
|
*
|
|
* @return bool True if it's a WordPress Ajax request, false otherwise.
|
|
*/
|
|
public static function doing_ajax() {
|
|
/**
|
|
* Filters whether the current request is a WordPress Ajax request.
|
|
*
|
|
* @since 1.0
|
|
*
|
|
* @param bool $wp_doing_ajax Whether the current request is a WordPress Ajax request.
|
|
*/
|
|
return apply_filters( 'wp_doing_ajax', defined( 'DOING_AJAX' ) && DOING_AJAX );
|
|
}
|
|
|
|
/**
|
|
* Get Imagify's file path.
|
|
*
|
|
* @since 1.0
|
|
* @access public
|
|
* @author Grégory Viguier
|
|
*
|
|
* @return string The file path.
|
|
*/
|
|
public static function get_imagify_path() {
|
|
if ( defined( 'IMAGIFY_FILE' ) ) {
|
|
return IMAGIFY_FILE;
|
|
}
|
|
|
|
return WP_PLUGIN_DIR . '/imagify/imagify.php';
|
|
}
|
|
|
|
/**
|
|
* Tell if the current user can install and activate Imagify.
|
|
*
|
|
* @since 1.0
|
|
* @access public
|
|
* @author Grégory Viguier
|
|
*
|
|
* @return bool
|
|
*/
|
|
public static function current_user_can() {
|
|
static $can;
|
|
|
|
if ( ! isset( $can ) ) {
|
|
$can = is_multisite() ? 'manage_network_plugins' : 'install_plugins';
|
|
$can = current_user_can( $can );
|
|
}
|
|
|
|
return $can;
|
|
}
|
|
|
|
/**
|
|
* Get the current URL.
|
|
*
|
|
* @since 1.0
|
|
* @access public
|
|
* @author Grégory Viguier
|
|
*
|
|
* @return string
|
|
*/
|
|
public static function get_current_url() {
|
|
$port = (int) $_SERVER['SERVER_PORT'];
|
|
$port = 80 !== $port && 443 !== $port ? ( ':' . $port ) : '';
|
|
$url = ! empty( $GLOBALS['HTTP_SERVER_VARS']['REQUEST_URI'] ) ? $GLOBALS['HTTP_SERVER_VARS']['REQUEST_URI'] : ( ! empty( $_SERVER['REQUEST_URI'] ) ? $_SERVER['REQUEST_URI'] : '' );
|
|
|
|
return 'http' . ( is_ssl() ? 's' : '' ) . '://' . $_SERVER['HTTP_HOST'] . $port . $url;
|
|
}
|
|
}
|
|
|
|
endif;
|