WordPress/wp-includes/rest-api/endpoints/class-wp-rest-global-styles-controller.php
spacedmonkey de3ee0fde6 REST API: Refactor global styles endpoints in REST API to register with post type.
Updated the global styles endpoints in the REST API to extend from existing posts and revisions controllers. This reduces duplicated code and inconsistencies. The revisions controller is now a subclass of the WP_REST_Revisions_Controller. Related redundant methods were removed and schema generation and collection parameters were adjusted to suit the global styles context. Updated permission checks, constructor, and collection parameters accordingly. This change allows for easy override of these classes using the `register_post_type_args` filter. 

Props ramonopoly, spacedmonkey, mukesh27.
Fixes #60131.
Built from https://develop.svn.wordpress.org/trunk@57624


git-svn-id: http://core.svn.wordpress.org/trunk@57125 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2024-02-13 14:09:08 +00:00

622 lines
18 KiB
PHP

<?php
/**
* REST API: WP_REST_Global_Styles_Controller class
*
* @package WordPress
* @subpackage REST_API
* @since 5.9.0
*/
/**
* Base Global Styles REST API Controller.
*/
class WP_REST_Global_Styles_Controller extends WP_REST_Posts_Controller {
/**
* Whether the controller supports batching.
*
* @since 6.5.0
* @var array
*/
protected $allow_batch = array( 'v1' => false );
/**
* Registers the controllers routes.
*
* @since 5.9.0
*/
public function register_routes() {
register_rest_route(
$this->namespace,
'/' . $this->rest_base . '/themes/(?P<stylesheet>[\/\s%\w\.\(\)\[\]\@_\-]+)/variations',
array(
array(
'methods' => WP_REST_Server::READABLE,
'callback' => array( $this, 'get_theme_items' ),
'permission_callback' => array( $this, 'get_theme_items_permissions_check' ),
'args' => array(
'stylesheet' => array(
'description' => __( 'The theme identifier' ),
'type' => 'string',
),
),
),
)
);
// List themes global styles.
register_rest_route(
$this->namespace,
// The route.
sprintf(
'/%s/themes/(?P<stylesheet>%s)',
$this->rest_base,
/*
* Matches theme's directory: `/themes/<subdirectory>/<theme>/` or `/themes/<theme>/`.
* Excludes invalid directory name characters: `/:<>*?"|`.
*/
'[^\/:<>\*\?"\|]+(?:\/[^\/:<>\*\?"\|]+)?'
),
array(
array(
'methods' => WP_REST_Server::READABLE,
'callback' => array( $this, 'get_theme_item' ),
'permission_callback' => array( $this, 'get_theme_item_permissions_check' ),
'args' => array(
'stylesheet' => array(
'description' => __( 'The theme identifier' ),
'type' => 'string',
'sanitize_callback' => array( $this, '_sanitize_global_styles_callback' ),
),
),
),
)
);
// Lists/updates a single global style variation based on the given id.
register_rest_route(
$this->namespace,
'/' . $this->rest_base . '/(?P<id>[\/\w-]+)',
array(
array(
'methods' => WP_REST_Server::READABLE,
'callback' => array( $this, 'get_item' ),
'permission_callback' => array( $this, 'get_item_permissions_check' ),
'args' => array(
'id' => array(
'description' => __( 'The id of a template' ),
'type' => 'string',
'sanitize_callback' => array( $this, '_sanitize_global_styles_callback' ),
),
),
),
array(
'methods' => WP_REST_Server::EDITABLE,
'callback' => array( $this, 'update_item' ),
'permission_callback' => array( $this, 'update_item_permissions_check' ),
'args' => $this->get_endpoint_args_for_item_schema( WP_REST_Server::EDITABLE ),
),
'schema' => array( $this, 'get_public_item_schema' ),
)
);
}
/**
* Sanitize the global styles ID or stylesheet to decode endpoint.
* For example, `wp/v2/global-styles/twentytwentytwo%200.4.0`
* would be decoded to `twentytwentytwo 0.4.0`.
*
* @since 5.9.0
*
* @param string $id_or_stylesheet Global styles ID or stylesheet.
* @return string Sanitized global styles ID or stylesheet.
*/
public function _sanitize_global_styles_callback( $id_or_stylesheet ) {
return urldecode( $id_or_stylesheet );
}
/**
* Get the post, if the ID is valid.
*
* @since 5.9.0
*
* @param int $id Supplied ID.
* @return WP_Post|WP_Error Post object if ID is valid, WP_Error otherwise.
*/
protected function get_post( $id ) {
$error = new WP_Error(
'rest_global_styles_not_found',
__( 'No global styles config exist with that id.' ),
array( 'status' => 404 )
);
$id = (int) $id;
if ( $id <= 0 ) {
return $error;
}
$post = get_post( $id );
if ( empty( $post ) || empty( $post->ID ) || $this->post_type !== $post->post_type ) {
return $error;
}
return $post;
}
/**
* Checks if a given request has access to read a single global style.
*
* @since 5.9.0
*
* @param WP_REST_Request $request Full details about the request.
* @return true|WP_Error True if the request has read access, WP_Error object otherwise.
*/
public function get_item_permissions_check( $request ) {
$post = $this->get_post( $request['id'] );
if ( is_wp_error( $post ) ) {
return $post;
}
if ( 'edit' === $request['context'] && $post && ! $this->check_update_permission( $post ) ) {
return new WP_Error(
'rest_forbidden_context',
__( 'Sorry, you are not allowed to edit this global style.' ),
array( 'status' => rest_authorization_required_code() )
);
}
if ( ! $this->check_read_permission( $post ) ) {
return new WP_Error(
'rest_cannot_view',
__( 'Sorry, you are not allowed to view this global style.' ),
array( 'status' => rest_authorization_required_code() )
);
}
return true;
}
/**
* Checks if a global style can be read.
*
* @since 5.9.0
*
* @param WP_Post $post Post object.
* @return bool Whether the post can be read.
*/
public function check_read_permission( $post ) {
return current_user_can( 'read_post', $post->ID );
}
/**
* Checks if a given request has access to write a single global styles config.
*
* @since 5.9.0
*
* @param WP_REST_Request $request Full details about the request.
* @return true|WP_Error True if the request has write access for the item, WP_Error object otherwise.
*/
public function update_item_permissions_check( $request ) {
$post = $this->get_post( $request['id'] );
if ( is_wp_error( $post ) ) {
return $post;
}
if ( $post && ! $this->check_update_permission( $post ) ) {
return new WP_Error(
'rest_cannot_edit',
__( 'Sorry, you are not allowed to edit this global style.' ),
array( 'status' => rest_authorization_required_code() )
);
}
return true;
}
/**
* Prepares a single global styles config for update.
*
* @since 5.9.0
* @since 6.2.0 Added validation of styles.css property.
*
* @param WP_REST_Request $request Request object.
* @return stdClass|WP_Error Prepared item on success. WP_Error on when the custom CSS is not valid.
*/
protected function prepare_item_for_database( $request ) {
$changes = new stdClass();
$changes->ID = $request['id'];
$post = get_post( $request['id'] );
$existing_config = array();
if ( $post ) {
$existing_config = json_decode( $post->post_content, true );
$json_decoding_error = json_last_error();
if ( JSON_ERROR_NONE !== $json_decoding_error || ! isset( $existing_config['isGlobalStylesUserThemeJSON'] ) ||
! $existing_config['isGlobalStylesUserThemeJSON'] ) {
$existing_config = array();
}
}
if ( isset( $request['styles'] ) || isset( $request['settings'] ) ) {
$config = array();
if ( isset( $request['styles'] ) ) {
if ( isset( $request['styles']['css'] ) ) {
$css_validation_result = $this->validate_custom_css( $request['styles']['css'] );
if ( is_wp_error( $css_validation_result ) ) {
return $css_validation_result;
}
}
$config['styles'] = $request['styles'];
} elseif ( isset( $existing_config['styles'] ) ) {
$config['styles'] = $existing_config['styles'];
}
if ( isset( $request['settings'] ) ) {
$config['settings'] = $request['settings'];
} elseif ( isset( $existing_config['settings'] ) ) {
$config['settings'] = $existing_config['settings'];
}
$config['isGlobalStylesUserThemeJSON'] = true;
$config['version'] = WP_Theme_JSON::LATEST_SCHEMA;
$changes->post_content = wp_json_encode( $config );
}
// Post title.
if ( isset( $request['title'] ) ) {
if ( is_string( $request['title'] ) ) {
$changes->post_title = $request['title'];
} elseif ( ! empty( $request['title']['raw'] ) ) {
$changes->post_title = $request['title']['raw'];
}
}
return $changes;
}
/**
* Prepare a global styles config output for response.
*
* @since 5.9.0
*
* @param WP_Post $post Global Styles post object.
* @param WP_REST_Request $request Request object.
* @return WP_REST_Response Response object.
*/
public function prepare_item_for_response( $post, $request ) {
$raw_config = json_decode( $post->post_content, true );
$is_global_styles_user_theme_json = isset( $raw_config['isGlobalStylesUserThemeJSON'] ) && true === $raw_config['isGlobalStylesUserThemeJSON'];
$config = array();
if ( $is_global_styles_user_theme_json ) {
$config = ( new WP_Theme_JSON( $raw_config, 'custom' ) )->get_raw_data();
}
// Base fields for every post.
$fields = $this->get_fields_for_response( $request );
$data = array();
if ( rest_is_field_included( 'id', $fields ) ) {
$data['id'] = $post->ID;
}
if ( rest_is_field_included( 'title', $fields ) ) {
$data['title'] = array();
}
if ( rest_is_field_included( 'title.raw', $fields ) ) {
$data['title']['raw'] = $post->post_title;
}
if ( rest_is_field_included( 'title.rendered', $fields ) ) {
add_filter( 'protected_title_format', array( $this, 'protected_title_format' ) );
$data['title']['rendered'] = get_the_title( $post->ID );
remove_filter( 'protected_title_format', array( $this, 'protected_title_format' ) );
}
if ( rest_is_field_included( 'settings', $fields ) ) {
$data['settings'] = ! empty( $config['settings'] ) && $is_global_styles_user_theme_json ? $config['settings'] : new stdClass();
}
if ( rest_is_field_included( 'styles', $fields ) ) {
$data['styles'] = ! empty( $config['styles'] ) && $is_global_styles_user_theme_json ? $config['styles'] : new stdClass();
}
$context = ! empty( $request['context'] ) ? $request['context'] : 'view';
$data = $this->add_additional_fields_to_object( $data, $request );
$data = $this->filter_response_by_context( $data, $context );
// Wrap the data in a response object.
$response = rest_ensure_response( $data );
if ( rest_is_field_included( '_links', $fields ) || rest_is_field_included( '_embedded', $fields ) ) {
$links = $this->prepare_links( $post->ID );
$response->add_links( $links );
if ( ! empty( $links['self']['href'] ) ) {
$actions = $this->get_available_actions( $post, $request );
$self = $links['self']['href'];
foreach ( $actions as $rel ) {
$response->add_link( $rel, $self );
}
}
}
return $response;
}
/**
* Prepares links for the request.
*
* @since 5.9.0
* @since 6.3.0 Adds revisions count and rest URL href to version-history.
*
* @param integer $id ID.
* @return array Links for the given post.
*/
protected function prepare_links( $id ) {
$base = sprintf( '%s/%s', $this->namespace, $this->rest_base );
$links = array(
'self' => array(
'href' => rest_url( trailingslashit( $base ) . $id ),
),
'about' => array(
'href' => rest_url( 'wp/v2/types/' . $this->post_type ),
),
);
if ( post_type_supports( $this->post_type, 'revisions' ) ) {
$revisions = wp_get_latest_revision_id_and_total_count( $id );
$revisions_count = ! is_wp_error( $revisions ) ? $revisions['count'] : 0;
$revisions_base = sprintf( '/%s/%d/revisions', $base, $id );
$links['version-history'] = array(
'href' => rest_url( $revisions_base ),
'count' => $revisions_count,
);
}
return $links;
}
/**
* Get the link relations available for the post and current user.
*
* @since 5.9.0
* @since 6.2.0 Added 'edit-css' action.
* @since 6.5.0 Added $post and $request parameters.
*
* @param WP_Post $post Post object.
* @param WP_REST_Request $request Request object.
* @return array List of link relations.
*/
protected function get_available_actions( $post, $request ) {
$rels = array();
$post_type = get_post_type_object( $post->post_type );
if ( current_user_can( $post_type->cap->publish_posts ) ) {
$rels[] = 'https://api.w.org/action-publish';
}
if ( current_user_can( 'edit_css' ) ) {
$rels[] = 'https://api.w.org/action-edit-css';
}
return $rels;
}
/**
* Retrieves the query params for the global styles collection.
*
* @since 5.9.0
*
* @return array Collection parameters.
*/
public function get_collection_params() {
return array();
}
/**
* Retrieves the global styles type' schema, conforming to JSON Schema.
*
* @since 5.9.0
*
* @return array Item schema data.
*/
public function get_item_schema() {
if ( $this->schema ) {
return $this->add_additional_fields_schema( $this->schema );
}
$schema = array(
'$schema' => 'http://json-schema.org/draft-04/schema#',
'title' => $this->post_type,
'type' => 'object',
'properties' => array(
'id' => array(
'description' => __( 'ID of global styles config.' ),
'type' => 'string',
'context' => array( 'embed', 'view', 'edit' ),
'readonly' => true,
),
'styles' => array(
'description' => __( 'Global styles.' ),
'type' => array( 'object' ),
'context' => array( 'view', 'edit' ),
),
'settings' => array(
'description' => __( 'Global settings.' ),
'type' => array( 'object' ),
'context' => array( 'view', 'edit' ),
),
'title' => array(
'description' => __( 'Title of the global styles variation.' ),
'type' => array( 'object', 'string' ),
'default' => '',
'context' => array( 'embed', 'view', 'edit' ),
'properties' => array(
'raw' => array(
'description' => __( 'Title for the global styles variation, as it exists in the database.' ),
'type' => 'string',
'context' => array( 'view', 'edit', 'embed' ),
),
'rendered' => array(
'description' => __( 'HTML title for the post, transformed for display.' ),
'type' => 'string',
'context' => array( 'view', 'edit', 'embed' ),
'readonly' => true,
),
),
),
),
);
$this->schema = $schema;
return $this->add_additional_fields_schema( $this->schema );
}
/**
* Checks if a given request has access to read a single theme global styles config.
*
* @since 5.9.0
*
* @param WP_REST_Request $request Full details about the request.
* @return true|WP_Error True if the request has read access for the item, WP_Error object otherwise.
*/
public function get_theme_item_permissions_check( $request ) {
/*
* Verify if the current user has edit_theme_options capability.
* This capability is required to edit/view/delete templates.
*/
if ( ! current_user_can( 'edit_theme_options' ) ) {
return new WP_Error(
'rest_cannot_manage_global_styles',
__( 'Sorry, you are not allowed to access the global styles on this site.' ),
array(
'status' => rest_authorization_required_code(),
)
);
}
return true;
}
/**
* Returns the given theme global styles config.
*
* @since 5.9.0
*
* @param WP_REST_Request $request The request instance.
* @return WP_REST_Response|WP_Error
*/
public function get_theme_item( $request ) {
if ( get_stylesheet() !== $request['stylesheet'] ) {
// This endpoint only supports the active theme for now.
return new WP_Error(
'rest_theme_not_found',
__( 'Theme not found.' ),
array( 'status' => 404 )
);
}
$theme = WP_Theme_JSON_Resolver::get_merged_data( 'theme' );
$fields = $this->get_fields_for_response( $request );
$data = array();
if ( rest_is_field_included( 'settings', $fields ) ) {
$data['settings'] = $theme->get_settings();
}
if ( rest_is_field_included( 'styles', $fields ) ) {
$raw_data = $theme->get_raw_data();
$data['styles'] = isset( $raw_data['styles'] ) ? $raw_data['styles'] : array();
}
$context = ! empty( $request['context'] ) ? $request['context'] : 'view';
$data = $this->add_additional_fields_to_object( $data, $request );
$data = $this->filter_response_by_context( $data, $context );
$response = rest_ensure_response( $data );
if ( rest_is_field_included( '_links', $fields ) || rest_is_field_included( '_embedded', $fields ) ) {
$links = array(
'self' => array(
'href' => rest_url( sprintf( '%s/%s/themes/%s', $this->namespace, $this->rest_base, $request['stylesheet'] ) ),
),
);
$response->add_links( $links );
}
return $response;
}
/**
* Checks if a given request has access to read a single theme global styles config.
*
* @since 6.0.0
*
* @param WP_REST_Request $request Full details about the request.
* @return true|WP_Error True if the request has read access for the item, WP_Error object otherwise.
*/
public function get_theme_items_permissions_check( $request ) {
/*
* Verify if the current user has edit_theme_options capability.
* This capability is required to edit/view/delete templates.
*/
if ( ! current_user_can( 'edit_theme_options' ) ) {
return new WP_Error(
'rest_cannot_manage_global_styles',
__( 'Sorry, you are not allowed to access the global styles on this site.' ),
array(
'status' => rest_authorization_required_code(),
)
);
}
return true;
}
/**
* Returns the given theme global styles variations.
*
* @since 6.0.0
* @since 6.2.0 Returns parent theme variations, if they exist.
*
* @param WP_REST_Request $request The request instance.
*
* @return WP_REST_Response|WP_Error
*/
public function get_theme_items( $request ) {
if ( get_stylesheet() !== $request['stylesheet'] ) {
// This endpoint only supports the active theme for now.
return new WP_Error(
'rest_theme_not_found',
__( 'Theme not found.' ),
array( 'status' => 404 )
);
}
$variations = WP_Theme_JSON_Resolver::get_style_variations();
return rest_ensure_response( $variations );
}
/**
* Validate style.css as valid CSS.
*
* Currently just checks for invalid markup.
*
* @since 6.2.0
* @since 6.4.0 Changed method visibility to protected.
*
* @param string $css CSS to validate.
* @return true|WP_Error True if the input was validated, otherwise WP_Error.
*/
protected function validate_custom_css( $css ) {
if ( preg_match( '#</?\w+#', $css ) ) {
return new WP_Error(
'rest_custom_css_illegal_markup',
__( 'Markup is not allowed in CSS.' ),
array( 'status' => 400 )
);
}
return true;
}
}