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< ? php
/**
* REST API : WP_REST_Themes_Controller class
*
* @ package WordPress
* @ subpackage REST_API
* @ since 5.0 . 0
*/
/**
* Core class used to manage themes via the REST API .
*
* @ since 5.0 . 0
*
* @ see WP_REST_Controller
*/
class WP_REST_Themes_Controller extends WP_REST_Controller {
/**
* Constructor .
*
* @ since 5.0 . 0
*/
public function __construct () {
$this -> namespace = 'wp/v2' ;
$this -> rest_base = 'themes' ;
}
/**
* Registers the routes for the objects of the controller .
*
* @ since 5.0 . 0
*
* @ see register_rest_route ()
*/
public function register_routes () {
register_rest_route (
$this -> namespace ,
'/' . $this -> rest_base ,
array (
array (
'methods' => WP_REST_Server :: READABLE ,
'callback' => array ( $this , 'get_items' ),
'permission_callback' => array ( $this , 'get_items_permissions_check' ),
'args' => $this -> get_collection_params (),
),
'schema' => array ( $this , 'get_item_schema' ),
)
);
}
/**
* Checks if a given request has access to read the theme .
*
* @ since 5.0 . 0
*
* @ param WP_REST_Request $request Full details about the request .
* @ return true | WP_Error True if the request has read access for the item , otherwise WP_Error object .
*/
public function get_items_permissions_check ( $request ) {
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if ( current_user_can ( 'edit_posts' ) ) {
return true ;
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}
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foreach ( get_post_types ( array ( 'show_in_rest' => true ), 'objects' ) as $post_type ) {
if ( current_user_can ( $post_type -> cap -> edit_posts ) ) {
return true ;
}
}
return new WP_Error (
'rest_user_cannot_view' ,
__ ( 'Sorry, you are not allowed to view themes.' ),
array ( 'status' => rest_authorization_required_code () )
);
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}
/**
* Retrieves a collection of themes .
*
* @ since 5.0 . 0
*
* @ param WP_REST_Request $request Full details about the request .
* @ return WP_REST_Response | WP_Error Response object on success , or WP_Error object on failure .
*/
public function get_items ( $request ) {
// Retrieve the list of registered collection query parameters.
$registered = $this -> get_collection_params ();
$themes = array ();
if ( isset ( $registered [ 'status' ], $request [ 'status' ] ) && in_array ( 'active' , $request [ 'status' ], true ) ) {
$active_theme = wp_get_theme ();
$active_theme = $this -> prepare_item_for_response ( $active_theme , $request );
$themes [] = $this -> prepare_response_for_collection ( $active_theme );
}
$response = rest_ensure_response ( $themes );
$response -> header ( 'X-WP-Total' , count ( $themes ) );
$response -> header ( 'X-WP-TotalPages' , count ( $themes ) );
return $response ;
}
/**
* Prepares a single theme output for response .
*
* @ since 5.0 . 0
*
* @ param WP_Theme $theme Theme object .
* @ param WP_REST_Request $request Request object .
* @ return WP_REST_Response Response object .
*/
public function prepare_item_for_response ( $theme , $request ) {
$data = array ();
$fields = $this -> get_fields_for_response ( $request );
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if ( rest_is_field_included ( 'stylesheet' , $fields ) ) {
$data [ 'stylesheet' ] = $theme -> get_stylesheet ();
}
if ( rest_is_field_included ( 'template' , $fields ) ) {
/**
* Use the get_template () method , not the 'Template' header , for finding the template .
* The 'Template' header is only good for what was written in the style . css , while
* get_template () takes into account where WordPress actually located the theme and
* whether it is actually valid .
*/
$data [ 'template' ] = $theme -> get_template ();
}
$plain_field_mappings = array (
'requires_php' => 'RequiresPHP' ,
'requires_wp' => 'RequiresWP' ,
'textdomain' => 'TextDomain' ,
'version' => 'Version' ,
);
foreach ( $plain_field_mappings as $field => $header ) {
if ( rest_is_field_included ( $field , $fields ) ) {
$data [ $field ] = $theme -> get ( $header );
}
}
if ( rest_is_field_included ( 'screenshot' , $fields ) ) {
// Using $theme->get_screenshot() with no args to get absolute URL.
$data [ 'screenshot' ] = $theme -> get_screenshot () ? : '' ;
}
$rich_field_mappings = array (
'author' => 'Author' ,
'author_uri' => 'AuthorURI' ,
'description' => 'Description' ,
'name' => 'Name' ,
'tags' => 'Tags' ,
'theme_uri' => 'ThemeURI' ,
);
foreach ( $rich_field_mappings as $field => $header ) {
if ( rest_is_field_included ( " { $field } .raw " , $fields ) ) {
$data [ $field ][ 'raw' ] = $theme -> display ( $header , false , true );
}
if ( rest_is_field_included ( " { $field } .rendered " , $fields ) ) {
$data [ $field ][ 'rendered' ] = $theme -> display ( $header );
}
}
if ( rest_is_field_included ( 'theme_supports' , $fields ) ) {
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$item_schemas = $this -> get_item_schema ();
$theme_supports = $item_schemas [ 'properties' ][ 'theme_supports' ][ 'properties' ];
foreach ( $theme_supports as $name => $schema ) {
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if ( ! rest_is_field_included ( " theme_supports. { $name } " , $fields ) ) {
continue ;
}
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if ( 'formats' === $name ) {
continue ;
}
if ( ! current_theme_supports ( $name ) ) {
$data [ 'theme_supports' ][ $name ] = false ;
continue ;
}
if ( 'boolean' === $schema [ 'type' ] ) {
$data [ 'theme_supports' ][ $name ] = true ;
continue ;
}
$support = get_theme_support ( $name );
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if ( is_array ( $support ) ) {
// None of the Core theme supports have variadic args.
$support = $support [ 0 ];
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// Core multi-type theme-support schema definitions always list boolean first.
if ( is_array ( $schema [ 'type' ] ) && 'boolean' === $schema [ 'type' ][ 0 ] ) {
// Pass the non-boolean type through to the sanitizer, which cannot itself
// determine the intended type if the value is invalid (for example if an
// object includes non-safelisted properties).
$schema [ 'type' ] = $schema [ 'type' ][ 1 ];
}
}
$data [ 'theme_supports' ][ $name ] = rest_sanitize_value_from_schema ( $support , $schema );
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}
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$formats = get_theme_support ( 'post-formats' );
$formats = is_array ( $formats ) ? array_values ( $formats [ 0 ] ) : array ();
$formats = array_merge ( array ( 'standard' ), $formats );
$data [ 'theme_supports' ][ 'formats' ] = $formats ;
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}
$data = $this -> add_additional_fields_to_object ( $data , $request );
// Wrap the data in a response object.
$response = rest_ensure_response ( $data );
/**
* Filters theme data returned from the REST API .
*
* @ since 5.0 . 0
*
* @ param WP_REST_Response $response The response object .
* @ param WP_Theme $theme Theme object used to create response .
* @ param WP_REST_Request $request Request object .
*/
return apply_filters ( 'rest_prepare_theme' , $response , $theme , $request );
}
/**
* Retrieves the theme ' s schema , conforming to JSON Schema .
*
* @ since 5.0 . 0
*
* @ return array Item schema data .
*/
public function get_item_schema () {
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if ( $this -> schema ) {
return $this -> add_additional_fields_schema ( $this -> schema );
}
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$schema = array (
'$schema' => 'http://json-schema.org/draft-04/schema#' ,
'title' => 'theme' ,
'type' => 'object' ,
'properties' => array (
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'stylesheet' => array (
'description' => __ ( 'The theme\'s stylesheet. This uniquely identifies the theme.' ),
'type' => 'string' ,
'readonly' => true ,
),
'template' => array (
'description' => __ ( 'The theme\'s template. If this is a child theme, this refers to the parent theme, otherwise this is the same as the theme\'s stylesheet.' ),
'type' => 'string' ,
'readonly' => true ,
),
'author' => array (
'description' => __ ( 'The theme author.' ),
'type' => 'object' ,
'readonly' => true ,
'properties' => array (
'raw' => array (
'description' => __ ( 'The theme author\'s name, as found in the theme header.' ),
'type' => 'string' ,
),
'rendered' => array (
'description' => __ ( 'HTML for the theme author, transformed for display.' ),
'type' => 'string' ,
),
),
),
'author_uri' => array (
'description' => __ ( 'The website of the theme author.' ),
'type' => 'object' ,
'readonly' => true ,
'properties' => array (
'raw' => array (
'description' => __ ( 'The website of the theme author, as found in the theme header.' ),
'type' => 'string' ,
'format' => 'uri' ,
),
'rendered' => array (
'description' => __ ( 'The website of the theme author, transformed for display.' ),
'type' => 'string' ,
'format' => 'uri' ,
),
),
),
'description' => array (
'description' => __ ( 'A description of the theme.' ),
'type' => 'object' ,
'readonly' => true ,
'properties' => array (
'raw' => array (
'description' => __ ( 'The theme description, as found in the theme header.' ),
'type' => 'string' ,
),
'rendered' => array (
'description' => __ ( 'The theme description, transformed for display.' ),
'type' => 'string' ,
),
),
),
'name' => array (
'description' => __ ( 'The name of the theme.' ),
'type' => 'object' ,
'readonly' => true ,
'properties' => array (
'raw' => array (
'description' => __ ( 'The theme name, as found in the theme header.' ),
'type' => 'string' ,
),
'rendered' => array (
'description' => __ ( 'The theme name, transformed for display.' ),
'type' => 'string' ,
),
),
),
'requires_php' => array (
'description' => __ ( 'The minimum PHP version required for the theme to work.' ),
'type' => 'string' ,
'readonly' => true ,
),
'requires_wp' => array (
'description' => __ ( 'The minimum WordPress version required for the theme to work.' ),
'type' => 'string' ,
'readonly' => true ,
),
'screenshot' => array (
'description' => __ ( 'The theme\'s screenshot URL.' ),
'type' => 'string' ,
'format' => 'uri' ,
'readonly' => true ,
),
'tags' => array (
'description' => __ ( 'Tags indicating styles and features of the theme.' ),
'type' => 'object' ,
'readonly' => true ,
'properties' => array (
'raw' => array (
'description' => __ ( 'The theme tags, as found in the theme header.' ),
'type' => 'array' ,
'items' => array (
'type' => 'string' ,
),
),
'rendered' => array (
'description' => __ ( 'The theme tags, transformed for display.' ),
'type' => 'string' ,
),
),
),
'textdomain' => array (
'description' => __ ( 'The theme\'s textdomain.' ),
'type' => 'string' ,
'readonly' => true ,
),
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'theme_supports' => array (
'description' => __ ( 'Features supported by this theme.' ),
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'type' => 'object' ,
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'readonly' => true ,
'properties' => array (
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'align-wide' => array (
'description' => __ ( 'Whether theme opts in to wide alignment CSS class.' ),
'type' => 'boolean' ,
),
'automatic-feed-links' => array (
'description' => __ ( 'Whether posts and comments RSS feed links are added to head.' ),
'type' => 'boolean' ,
),
'custom-header' => array (
'description' => __ ( 'Custom header if defined by the theme.' ),
'type' => array ( 'boolean' , 'object' ),
'properties' => array (
'default-image' => array (
'type' => 'string' ,
'format' => 'uri' ,
),
'random-default' => array (
'type' => 'boolean' ,
),
'width' => array (
'type' => 'integer' ,
),
'height' => array (
'type' => 'integer' ,
),
'flex-height' => array (
'type' => 'boolean' ,
),
'flex-width' => array (
'type' => 'boolean' ,
),
'default-text-color' => array (
'type' => 'string' ,
),
'header-text' => array (
'type' => 'boolean' ,
),
'uploads' => array (
'type' => 'boolean' ,
),
'video' => array (
'type' => 'boolean' ,
),
),
'additionalProperties' => false ,
),
'custom-background' => array (
'description' => __ ( 'Custom background if defined by the theme.' ),
'type' => array ( 'boolean' , 'object' ),
'properties' => array (
'default-image' => array (
'type' => 'string' ,
'format' => 'uri' ,
),
'default-preset' => array (
'type' => 'string' ,
'enum' => array (
'default' ,
'fill' ,
'fit' ,
'repeat' ,
'custom' ,
),
),
'default-position-x' => array (
'type' => 'string' ,
'enum' => array (
'left' ,
'center' ,
'right' ,
),
),
'default-position-y' => array (
'type' => 'string' ,
'enum' => array (
'left' ,
'center' ,
'right' ,
),
),
'default-size' => array (
'type' => 'string' ,
'enum' => array (
'auto' ,
'contain' ,
'cover' ,
),
),
'default-repeat' => array (
'type' => 'string' ,
'enum' => array (
'repeat-x' ,
'repeat-y' ,
'repeat' ,
'no-repeat' ,
),
),
'default-attachment' => array (
'type' => 'string' ,
'enum' => array (
'scroll' ,
'fixed' ,
),
),
'default-color' => array (
'type' => 'string' ,
),
),
'additionalProperties' => false ,
),
'custom-logo' => array (
'description' => __ ( 'Custom logo if defined by the theme.' ),
'type' => array ( 'boolean' , 'object' ),
'properties' => array (
'width' => array (
'type' => 'integer' ,
),
'height' => array (
'type' => 'integer' ,
),
'flex-width' => array (
'type' => 'boolean' ,
),
'flex-height' => array (
'type' => 'boolean' ,
),
'header-text' => array (
'type' => 'array' ,
'items' => array (
'type' => 'string' ,
),
),
),
'additionalProperties' => false ,
),
'customize-selective-refresh-widgets' => array (
'description' => __ ( 'Whether the theme enables Selective Refresh for Widgets being managed with the Customizer.' ),
'type' => 'boolean' ,
),
'dark-editor-style' => array (
'description' => __ ( 'Whether theme opts in to the dark editor style UI.' ),
'type' => 'boolean' ,
),
'disable-custom-colors' => array (
'description' => __ ( 'Whether the theme disables custom colors.' ),
'type' => 'boolean' ,
),
'disable-custom-font-sizes' => array (
'description' => __ ( 'Whether the theme disables custom font sizes.' ),
'type' => 'boolean' ,
),
'disable-custom-gradients' => array (
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'description' => __ ( 'Whether the theme disables custom gradients.' ),
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'type' => 'boolean' ,
),
'editor-color-palette' => array (
'description' => __ ( 'Custom color palette if defined by the theme.' ),
'type' => array ( 'boolean' , 'array' ),
'items' => array (
'type' => 'object' ,
'properties' => array (
'name' => array (
'type' => 'string' ,
),
'slug' => array (
'type' => 'string' ,
),
'color' => array (
'type' => 'string' ,
),
),
'additionalProperties' => false ,
),
),
'editor-font-sizes' => array (
'description' => __ ( 'Custom font sizes if defined by the theme.' ),
'type' => array ( 'boolean' , 'array' ),
'items' => array (
'type' => 'object' ,
'properties' => array (
'name' => array (
'type' => 'string' ,
),
'size' => array (
'type' => 'number' ,
),
'slug' => array (
'type' => 'string' ,
),
),
'additionalProperties' => false ,
),
),
'editor-gradient-presets' => array (
'description' => __ ( 'Custom gradient presets if defined by the theme.' ),
'type' => array ( 'boolean' , 'array' ),
'items' => array (
'type' => 'object' ,
'properties' => array (
'name' => array (
'type' => 'string' ,
),
'gradient' => array (
'type' => 'string' ,
),
'slug' => array (
'type' => 'string' ,
),
),
'additionalProperties' => false ,
),
),
'editor-styles' => array (
'description' => __ ( 'Whether theme opts in to the editor styles CSS wrapper.' ),
'type' => 'boolean' ,
),
'formats' => array (
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'description' => __ ( 'Post formats supported.' ),
'type' => 'array' ,
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'items' => array (
'type' => 'string' ,
'enum' => get_post_format_slugs (),
),
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),
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'html5' => array (
'description' => __ ( 'Allows use of html5 markup for search forms, comment forms, comment lists, gallery, and caption.' ),
'type' => array ( 'boolean' , 'array' ),
'items' => array (
'type' => 'string' ,
'enum' => array (
'search-form' ,
'comment-form' ,
'comment-list' ,
'gallery' ,
'caption' ,
'script' ,
'style' ,
),
),
),
'post-thumbnails' => array (
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'description' => __ ( 'Whether the theme supports post thumbnails.' ),
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'type' => array ( 'boolean' , 'array' ),
'items' => array (
'type' => 'string' ,
),
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),
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'responsive-embeds' => array (
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'description' => __ ( 'Whether the theme supports responsive embedded content.' ),
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'type' => 'boolean' ,
),
'title-tag' => array (
'description' => __ ( 'Whether the theme can manage the document title tag.' ),
'type' => 'boolean' ,
),
'wp-block-styles' => array (
'description' => __ ( 'Whether theme opts in to default WordPress block styles for viewing.' ),
'type' => 'boolean' ,
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),
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),
),
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'theme_uri' => array (
'description' => __ ( 'The URI of the theme\'s webpage.' ),
'type' => 'object' ,
'readonly' => true ,
'properties' => array (
'raw' => array (
'description' => __ ( 'The URI of the theme\'s webpage, as found in the theme header.' ),
'type' => 'string' ,
'format' => 'uri' ,
),
'rendered' => array (
'description' => __ ( 'The URI of the theme\'s webpage, transformed for display.' ),
'type' => 'string' ,
'format' => 'uri' ,
),
),
),
'version' => array (
'description' => __ ( 'The theme\'s current version.' ),
'type' => 'string' ,
'readonly' => true ,
),
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),
);
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$this -> schema = $schema ;
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return $this -> add_additional_fields_schema ( $this -> schema );
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}
/**
* Retrieves the search params for the themes collection .
*
* @ since 5.0 . 0
*
* @ return array Collection parameters .
*/
public function get_collection_params () {
$query_params = parent :: get_collection_params ();
$query_params [ 'status' ] = array (
'description' => __ ( 'Limit result set to themes assigned one or more statuses.' ),
'type' => 'array' ,
'items' => array (
'enum' => array ( 'active' ),
'type' => 'string' ,
),
'required' => true ,
'sanitize_callback' => array ( $this , 'sanitize_theme_status' ),
);
/**
* Filter collection parameters for the themes controller .
*
* @ since 5.0 . 0
*
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* @ param array $query_params JSON Schema - formatted collection parameters .
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*/
return apply_filters ( 'rest_themes_collection_params' , $query_params );
}
/**
* Sanitizes and validates the list of theme status .
*
* @ since 5.0 . 0
*
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* @ param string | array $statuses One or more theme statuses .
* @ param WP_REST_Request $request Full details about the request .
* @ param string $parameter Additional parameter to pass to validation .
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* @ return array | WP_Error A list of valid statuses , otherwise WP_Error object .
*/
public function sanitize_theme_status ( $statuses , $request , $parameter ) {
$statuses = wp_parse_slug_list ( $statuses );
foreach ( $statuses as $status ) {
$result = rest_validate_request_arg ( $status , $request , $parameter );
if ( is_wp_error ( $result ) ) {
return $result ;
}
}
return $statuses ;
}
}