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<?php |
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/** |
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* The class that exposes endpoints. |
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* |
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* @package ThemeIsleSDK |
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* @subpackage Endpoints |
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* @copyright Copyright (c) 2017, Marius Cristea |
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* @license http://opensource.org/licenses/gpl-3.0.php GNU Public License |
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* @since 1.0.0 |
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*/ |
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// Exit if accessed directly. |
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if ( ! defined( 'ABSPATH' ) ) { |
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exit; |
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} |
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if ( ! class_exists( 'ThemeIsle_SDK_Endpoints' ) ) : |
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/** |
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* Expose endpoints for ThemeIsle SDK. |
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*/ |
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final class ThemeIsle_SDK_Endpoints { |
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|
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const SDK_ENDPOINT = 'themeisle-sdk'; |
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const SDK_ENDPOINT_VERSION = 1; |
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|
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const HASH_FILE = 'themeisle-hash.json'; |
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|
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// if true, the endpoint will expect a product slug and will return the value only for that. |
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const PRODUCT_SPECIFIC = false; |
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|
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/** |
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* @var ThemeIsle_SDK_Product $products Array of Themeisle Product. |
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*/ |
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static protected $products = array(); |
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|
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/** |
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* ThemeIsle_SDK_Endpoints constructor. |
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* |
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* @param ThemeIsle_SDK_Product $product_object Product Object. |
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*/ |
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public function __construct( $product_object ) { |
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if ( $product_object instanceof ThemeIsle_SDK_Product ) { |
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self::$products[] = $product_object; |
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} |
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$this->setup_endpoints(); |
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} |
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|
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/** |
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* Setup endpoints. |
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*/ |
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private function setup_endpoints() { |
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global $wp_version; |
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if ( version_compare( $wp_version, '4.4', '<' ) ) { |
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// no REST support. |
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return; |
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} |
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|
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$this->setup_rest(); |
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} |
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|
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/** |
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* Setup REST endpoints. |
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*/ |
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private function setup_rest() { |
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add_action( 'rest_api_init', array( $this, 'rest_register' ) ); |
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} |
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|
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/** |
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* Registers the endpoints |
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*/ |
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function rest_register() { |
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register_rest_route( |
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self::SDK_ENDPOINT . '/v' . self::SDK_ENDPOINT_VERSION, |
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'/checksum/' . ( self::PRODUCT_SPECIFIC ? '(?P<slug>.*)/' : '' ), |
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array( |
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'methods' => 'GET', |
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'callback' => array( $this, 'checksum' ), |
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) |
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); |
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} |
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|
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/** |
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* The checksum endpoint. |
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* |
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* @param WP_REST_Request $data the request. |
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* |
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* @return WP_REST_Response Response or the error |
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*/ |
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function checksum( WP_REST_Request $data ) { |
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$products = self::$products; |
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if ( self::PRODUCT_SPECIFIC ) { |
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$params = $this->validate_params( $data, array( 'slug' ) ); |
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foreach ( self::$products as $product ) { |
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if ( $params['slug'] === $product->get_slug() ) { |
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$products = array( $product ); |
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break; |
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} |
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} |
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} |
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$response = array(); |
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$custom_css = $this->has_custom_css(); |
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if ( is_bool( $custom_css ) ) { |
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$response['custom_css'] = $custom_css; |
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} |
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|
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$response['child_theme'] = $this->get_theme_properties(); |
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|
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foreach ( $products as $product ) { |
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$files = array(); |
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switch ( $product->get_type() ) { |
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case 'plugin': |
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$files = array(); |
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break; |
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case 'theme': |
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$files = array( 'style.css', 'functions.php' ); |
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break; |
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} |
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|
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$error = ''; |
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|
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// if any element in the $files array contains a '/', this would imply recursion is required. |
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$diff = $this->generate_diff( $product, $files, array_reduce( $files, array( $this, 'is_recursion_required' ), false ) ); |
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if ( is_wp_error( $diff ) ) { |
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$error = $diff->get_error_message(); |
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$diff = array(); |
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} |
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|
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$response['products'][] = array( |
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'slug' => $product->get_slug(), |
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'version' => $product->get_version(), |
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'diffs' => $diff, |
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'error' => $error, |
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); |
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} |
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|
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return new WP_REST_Response( array( 'checksum' => $response ) ); |
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} |
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|
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/** |
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* Get the current theme properties. |
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* |
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* @return array Properties of the current theme. |
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*/ |
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function get_theme_properties() { |
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if ( ! is_child_theme() ) { |
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return false; |
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} |
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|
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$properties = array(); |
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$theme = wp_get_theme(); |
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// @codingStandardsIgnoreStart |
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$properties['name'] = $theme->Name; |
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// @codingStandardsIgnoreEnd |
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|
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// get the files in the child theme. |
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require_once( ABSPATH . 'wp-admin/includes/file.php' ); |
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WP_Filesystem(); |
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global $wp_filesystem; |
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$path = str_replace( ABSPATH, $wp_filesystem->abspath(), get_stylesheet_directory() ); |
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$list = $wp_filesystem->dirlist( $path, false, false ); |
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if ( $list ) { |
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$list = array_keys( self::flatten_dirlist( $list ) ); |
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$properties['files'] = $list; |
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} |
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return $properties; |
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} |
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|
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/** |
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* Check if custom css has been added to the theme. |
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* |
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* @return bool Whether custom css has been added to the theme. |
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*/ |
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private function has_custom_css() { |
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$query = new WP_Query( |
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array( |
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'post_type' => 'custom_css', |
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'post_status' => 'publish', |
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'numberposts' => 1, |
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'update_post_meta_cache' => false, |
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'update_post_term_cache' => false, |
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) |
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); |
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|
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if ( $query->have_posts() ) { |
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$query->the_post(); |
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$content = get_the_content(); |
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// if the content contains a colon, a CSS rule has been added. |
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return strpos( $content, ':' ) === false ? false : true; |
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} |
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return false; |
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} |
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|
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/** |
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* Check if recursion needs to be enabled on the WP_Filesystem by reducing the array of files to a boolean. |
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* |
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* @param string $carry Value of the previous iteration. |
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* @param string $item Value of the current iteration. |
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* |
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* @return bool Whether to recurse or not. |
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*/ |
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function is_recursion_required( $carry, $item ) { |
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if ( ! $carry ) { |
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return ( strpos( $item, '/' ) !== false ); |
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} |
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return $carry; |
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} |
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|
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/** |
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* Generate the diff of the files. |
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* |
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* @param ThemeIsle_SDK_Product $product Themeisle Product. |
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* @param array $files Array of files. |
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* @param bool $recurse Whether to recurse or not. |
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* |
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* @return string |
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*/ |
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private function generate_diff( $product, $files, $recurse = false ) { |
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require_once( ABSPATH . 'wp-admin/includes/file.php' ); |
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WP_Filesystem(); |
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global $wp_filesystem; |
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|
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$diff = array(); |
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$path = str_replace( ABSPATH, $wp_filesystem->abspath(), plugin_dir_path( $product->get_basefile() ) ); |
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$list = $wp_filesystem->dirlist( $path, false, $recurse ); |
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// nothing found. |
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if ( ! $list ) { |
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return $diff; |
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} |
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$list = array_keys( self::flatten_dirlist( $list ) ); |
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|
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// now let's get the valid files that actually exist. |
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if ( empty( $files ) ) { |
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$files = $list; |
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} else { |
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$files = array_intersect( $files, $list ); |
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} |
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|
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// fetch the calculated hashes. |
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if ( ! $wp_filesystem->is_readable( $path . '/' . self::HASH_FILE ) ) { |
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return new WP_Error( 'themeisle_sdk_hash_not_found', sprintf( '%s not found', self::HASH_FILE ) ); |
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} |
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|
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$hashes = json_decode( $wp_filesystem->get_contents( $path . '/' . self::HASH_FILE ), true ); |
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ksort( $hashes ); |
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|
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$diff = array(); |
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foreach ( $files as $file ) { |
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// file does not exist in the hashes. |
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if ( ! array_key_exists( $file, $hashes ) ) { |
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continue; |
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} |
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$new = md5( $wp_filesystem->get_contents( $path . $file ) ); |
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$old = $hashes[ $file ]; |
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|
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// same hash, bail. |
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if ( $new === $old ) { |
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continue; |
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} |
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$diff[] = $file; |
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} |
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return $diff; |
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} |
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|
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/** |
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* Flatten the results of WP_Filesystem::dirlist() for iterating over. |
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* |
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* @access private |
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* |
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* @param array $nested_files Array of files as returned by WP_Filesystem::dirlist(). |
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* @param string $path Relative path to prepend to child nodes. Optional. |
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* @return array $files A flattened array of the $nested_files specified. |
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*/ |
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private static function flatten_dirlist( $nested_files, $path = '' ) { |
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$files = array(); |
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foreach ( $nested_files as $name => $details ) { |
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$files[ $path . $name ] = $details; |
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// Append children recursively |
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if ( ! empty( $details['files'] ) ) { |
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$children = self::flatten_dirlist( $details['files'], $path . $name . '/' ); |
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// Merge keeping possible numeric keys, which array_merge() will reindex from 0..n |
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$files = $files + $children; |
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} |
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} |
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return $files; |
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} |
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|
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/** |
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* Validates the parameters to the API |
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* |
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* @param WP_REST_Request $data the request. |
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* @param array $params the parameters to validate. |
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* |
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* @return array of parameter name=>value |
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*/ |
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private function validate_params( WP_REST_Request $data, $params ) { |
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$collect = array(); |
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foreach ( $params as $param ) { |
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$value = sanitize_text_field( $data[ $param ] ); |
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if ( empty( $value ) ) { |
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return new WP_Error( |
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'themeisle_' . $param . '_invalid', sprintf( 'Invalid %', $param ), array( |
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'status' => 403, |
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) |
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); |
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} else { |
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$collect[ $param ] = $value; |
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} |
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} |
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|
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return $collect; |
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} |
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|
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} |
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endif; |
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|
