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| 1 | <?php |
| 2 | /** |
| 3 | * REST API endpoint for resolving template. |
| 4 | * |
| 5 | * @package automattic/jetpack |
| 6 | */ |
| 7 | |
| 8 | if ( ! defined( 'ABSPATH' ) ) { |
| 9 | exit( 0 ); |
| 10 | } |
| 11 | |
| 12 | /** |
| 13 | * Returns the correct template for the site's page based on the template type |
| 14 | */ |
| 15 | class WPCOM_REST_API_V2_Endpoint_Template_Loader extends WP_REST_Controller { |
| 16 | /** |
| 17 | * Constructor. |
| 18 | */ |
| 19 | public function __construct() { |
| 20 | $this->namespace = 'wpcom/v2'; |
| 21 | $this->rest_base = 'template-loader'; |
| 22 | |
| 23 | add_action( 'rest_api_init', array( $this, 'register_routes' ) ); |
| 24 | } |
| 25 | |
| 26 | /** |
| 27 | * Called automatically on `rest_api_init()`. |
| 28 | */ |
| 29 | public function register_routes() { |
| 30 | register_rest_route( |
| 31 | $this->namespace, |
| 32 | sprintf( |
| 33 | '/%s/(?P<template_type>\w+)', |
| 34 | $this->rest_base |
| 35 | ), |
| 36 | array( |
| 37 | 'methods' => WP_REST_Server::READABLE, |
| 38 | 'callback' => array( $this, 'get_item' ), |
| 39 | 'permission_callback' => array( $this, 'permissions_check' ), |
| 40 | 'args' => array( |
| 41 | 'template_type' => array( |
| 42 | 'description' => __( 'The type of the template.', 'jetpack' ), |
| 43 | 'type' => 'string', |
| 44 | 'required' => true, |
| 45 | 'validate_callback' => array( $this, 'validate_template_type' ), |
| 46 | ), |
| 47 | ), |
| 48 | ) |
| 49 | ); |
| 50 | } |
| 51 | |
| 52 | /** |
| 53 | * Checks if the user has permissions to make the request. |
| 54 | * |
| 55 | * @return true|WP_Error True if the request has read access, WP_Error object otherwise. |
| 56 | */ |
| 57 | public function permissions_check() { |
| 58 | // Verify if the current user has edit_theme_options capability. |
| 59 | // This capability is required to edit/view/delete templates. |
| 60 | if ( ! current_user_can( 'edit_theme_options' ) ) { |
| 61 | return new WP_Error( |
| 62 | 'rest_cannot_manage_templates', |
| 63 | __( 'Sorry, you are not allowed to access the templates on this site.', 'jetpack' ), |
| 64 | array( |
| 65 | 'status' => rest_authorization_required_code(), |
| 66 | ) |
| 67 | ); |
| 68 | } |
| 69 | |
| 70 | return true; |
| 71 | } |
| 72 | |
| 73 | /** |
| 74 | * Validate the template type. |
| 75 | * |
| 76 | * @param string $template_type The template type. |
| 77 | * @return boolean True if the template type is valid. |
| 78 | */ |
| 79 | public function validate_template_type( $template_type ) { |
| 80 | $template_types = array_keys( get_default_block_template_types() ); |
| 81 | if ( ! in_array( $template_type, $template_types, true ) ) { |
| 82 | return new WP_Error( |
| 83 | 'rest_invalid_param', |
| 84 | sprintf( |
| 85 | /* translators: %s: The template type. */ |
| 86 | __( 'The template type %s are not allowed.', 'jetpack' ), |
| 87 | $template_type |
| 88 | ), |
| 89 | array( 'status' => 400 ) |
| 90 | ); |
| 91 | } |
| 92 | |
| 93 | return true; |
| 94 | } |
| 95 | |
| 96 | /** |
| 97 | * Retrieves the template by specified type. |
| 98 | * |
| 99 | * @param WP_REST_Request $request Full details about the request. |
| 100 | * @return WP_REST_Response|WP_Error Response object on success, or WP_Error object on failure. |
| 101 | */ |
| 102 | public function get_item( $request ) { |
| 103 | $template_type = $request['template_type']; |
| 104 | |
| 105 | // A list of template candidates, in descending order of priority. |
| 106 | $templates = apply_filters( "{$template_type}_template_hierarchy", array( "{$template_type}.php" ) ); |
| 107 | $template = locate_template( $templates ); |
| 108 | $block_template = resolve_block_template( $template_type, $templates, $template ); |
| 109 | |
| 110 | if ( empty( $block_template ) ) { |
| 111 | return new WP_Error( 'not_found', 'Template not found', array( 'status' => 404 ) ); |
| 112 | } |
| 113 | |
| 114 | return rest_ensure_response( |
| 115 | array( |
| 116 | 'type' => $block_template->type, |
| 117 | 'id' => $block_template->id, |
| 118 | ) |
| 119 | ); |
| 120 | } |
| 121 | } |
| 122 | |
| 123 | wpcom_rest_api_v2_load_plugin( 'WPCOM_REST_API_V2_Endpoint_Template_Loader' ); |