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<?php
/**
* REST API: WP_REST_Templates_Controller class
*
* @package WordPress
* @subpackage REST_API
* @since 5.8.0
*/
/**
* Base Templates REST API Controller.
*
* @since 5.8.0
*
* @see WP_REST_Controller
*/
class WP_REST_Templates_Controller extends WP_REST_Controller {
/**
* Post type.
*
* @since 5.8.0
* @var string
*/
protected $post_type;
/**
* Constructor.
*
* @since 5.8.0
*
* @param string $post_type Post type.
*/
public function __construct( $post_type ) {
$this->post_type = $post_type;
$this->namespace = 'wp/v2';
$obj = get_post_type_object( $post_type );
$this->rest_base = ! empty( $obj->rest_base ) ? $obj->rest_base : $obj->name;
}
/**
* Registers the controllers routes.
*
* @since 5.8.0
*/
public function register_routes() {
// Lists all templates.
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(),
),
array(
'methods' => WP_REST_Server::CREATABLE,
'callback' => array( $this, 'create_item' ),
'permission_callback' => array( $this, 'create_item_permissions_check' ),
'args' => $this->get_endpoint_args_for_item_schema( WP_REST_Server::CREATABLE ),
),
'schema' => array( $this, 'get_public_item_schema' ),
)
);
// Lists/updates a single template 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',
),
),
),
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 ),
),
array(
'methods' => WP_REST_Server::DELETABLE,
'callback' => array( $this, 'delete_item' ),
'permission_callback' => array( $this, 'delete_item_permissions_check' ),
'args' => array(
'force' => array(
'type' => 'boolean',
'default' => false,
'description' => __( 'Whether to bypass Trash and force deletion.' ),
),
),
),
'schema' => array( $this, 'get_public_item_schema' ),
)
);
}
/**
* Checks if the user has permissions to make the request.
*
* @since 5.8.0
*
* @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.
*/
protected function 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_templates',
__( 'Sorry, you are not allowed to access the templates on this site.' ),
array(
'status' => rest_authorization_required_code(),
)
);
}
return true;
}
/**
* Checks if a given request has access to read templates.
*
* @since 5.8.0
*
* @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_items_permissions_check( $request ) {
return $this->permissions_check( $request );
}
/**
* Returns a list of templates.
*
* @since 5.8.0
*
* @param WP_REST_Request $request The request instance.
* @return WP_REST_Response
*/
public function get_items( $request ) {
$query = array();
if ( isset( $request['wp_id'] ) ) {
$query['wp_id'] = $request['wp_id'];
}
if ( isset( $request['area'] ) ) {
$query['area'] = $request['area'];
}
$templates = array();
foreach ( get_block_templates( $query, $this->post_type ) as $template ) {
$data = $this->prepare_item_for_response( $template, $request );
$templates[] = $this->prepare_response_for_collection( $data );
}
return rest_ensure_response( $templates );
}
/**
* Checks if a given request has access to read a single template.
*
* @since 5.8.0
*
* @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_item_permissions_check( $request ) {
return $this->permissions_check( $request );
}
/**
* Returns the given template
*
* @since 5.8.0
*
* @param WP_REST_Request $request The request instance.
* @return WP_REST_Response|WP_Error
*/
public function get_item( $request ) {
$template = get_block_template( $request['id'], $this->post_type );
if ( ! $template ) {
return new WP_Error( 'rest_template_not_found', __( 'No templates exist with that id.' ), array( 'status' => 404 ) );
}
return $this->prepare_item_for_response( $template, $request );
}
/**
* Checks if a given request has access to write a single template.
*
* @since 5.8.0
*
* @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 ) {
return $this->permissions_check( $request );
}
/**
* Updates a single template.
*
* @since 5.8.0
*
* @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 update_item( $request ) {
$template = get_block_template( $request['id'], $this->post_type );
if ( ! $template ) {
return new WP_Error( 'rest_template_not_found', __( 'No templates exist with that id.' ), array( 'status' => 404 ) );
}
$changes = $this->prepare_item_for_database( $request );
if ( 'custom' === $template->source ) {
$result = wp_update_post( wp_slash( (array) $changes ), true );
} else {
$result = wp_insert_post( wp_slash( (array) $changes ), true );
}
if ( is_wp_error( $result ) ) {
return $result;
}
$template = get_block_template( $request['id'], $this->post_type );
$fields_update = $this->update_additional_fields_for_object( $template, $request );
if ( is_wp_error( $fields_update ) ) {
return $fields_update;
}
return $this->prepare_item_for_response(
get_block_template( $request['id'], $this->post_type ),
$request
);
}
/**
* Checks if a given request has access to create a template.
*
* @since 5.8.0
*
* @param WP_REST_Request $request Full details about the request.
* @return true|WP_Error True if the request has access to create items, WP_Error object otherwise.
*/
public function create_item_permissions_check( $request ) {
return $this->permissions_check( $request );
}
/**
* Creates a single template.
*
* @since 5.8.0
*
* @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 create_item( $request ) {
$changes = $this->prepare_item_for_database( $request );
$changes->post_name = $request['slug'];
$result = wp_insert_post( wp_slash( (array) $changes ), true );
if ( is_wp_error( $result ) ) {
return $result;
}
$posts = get_block_templates( array( 'wp_id' => $result ), $this->post_type );
if ( ! count( $posts ) ) {
return new WP_Error( 'rest_template_insert_error', __( 'No templates exist with that id.' ) );
}
$id = $posts[0]->id;
$template = get_block_template( $id, $this->post_type );
$fields_update = $this->update_additional_fields_for_object( $template, $request );
if ( is_wp_error( $fields_update ) ) {
return $fields_update;
}
return $this->prepare_item_for_response(
get_block_template( $id, $this->post_type ),
$request
);
}
/**
* Checks if a given request has access to delete a single template.
*
* @since 5.8.0
*
* @param WP_REST_Request $request Full details about the request.
* @return true|WP_Error True if the request has delete access for the item, WP_Error object otherwise.
*/
public function delete_item_permissions_check( $request ) {
return $this->permissions_check( $request );
}
/**
* Deletes a single template.
*
* @since 5.8.0
*
* @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 delete_item( $request ) {
$template = get_block_template( $request['id'], $this->post_type );
if ( ! $template ) {
return new WP_Error( 'rest_template_not_found', __( 'No templates exist with that id.' ), array( 'status' => 404 ) );
}
if ( 'custom' !== $template->source ) {
return new WP_Error( 'rest_invalid_template', __( 'Templates based on theme files can\'t be removed.' ), array( 'status' => 400 ) );
}
$id = $template->wp_id;
$force = (bool) $request['force'];
// If we're forcing, then delete permanently.
if ( $force ) {
$previous = $this->prepare_item_for_response( $template, $request );
wp_delete_post( $id, true );
$response = new WP_REST_Response();
$response->set_data(
array(
'deleted' => true,
'previous' => $previous->get_data(),
)
);
return $response;
}
// Otherwise, only trash if we haven't already.
if ( 'trash' === $template->status ) {
return new WP_Error(
'rest_template_already_trashed',
__( 'The template has already been deleted.' ),
array( 'status' => 410 )
);
}
wp_trash_post( $id );
$template->status = 'trash';
return $this->prepare_item_for_response( $template, $request );
}
/**
* Prepares a single template for create or update.
*
* @since 5.8.0
*
* @param WP_REST_Request $request Request object.
* @return stdClass Changes to pass to wp_update_post.
*/
protected function prepare_item_for_database( $request ) {
$template = $request['id'] ? get_block_template( $request['id'], $this->post_type ) : null;
$changes = new stdClass();
if ( null === $template ) {
$changes->post_type = $this->post_type;
$changes->post_status = 'publish';
$changes->tax_input = array(
'wp_theme' => isset( $request['theme'] ) ? $request['theme'] : wp_get_theme()->get_stylesheet(),
);
} elseif ( 'custom' !== $template->source ) {
$changes->post_name = $template->slug;
$changes->post_type = $this->post_type;
$changes->post_status = 'publish';
$changes->tax_input = array(
'wp_theme' => $template->theme,
);
} else {
$changes->post_name = $template->slug;
$changes->ID = $template->wp_id;
$changes->post_status = 'publish';
}
if ( isset( $request['content'] ) ) {
$changes->post_content = $request['content'];
} elseif ( null !== $template && 'custom' !== $template->source ) {
$changes->post_content = $template->content;
}
if ( isset( $request['title'] ) ) {
$changes->post_title = $request['title'];
} elseif ( null !== $template && 'custom' !== $template->source ) {
$changes->post_title = $template->title;
}
if ( isset( $request['description'] ) ) {
$changes->post_excerpt = $request['description'];
} elseif ( null !== $template && 'custom' !== $template->source ) {
$changes->post_excerpt = $template->description;
}
return $changes;
}
/**
* Prepare a single template output for response
*
* @since 5.8.0
*
* @param WP_Block_Template $template Template instance.
* @param WP_REST_Request $request Request object.
* @return WP_REST_Response $data
*/
public function prepare_item_for_response( $template, $request ) { // phpcs:ignore VariableAnalysis.CodeAnalysis.VariableAnalysis.UnusedVariable
$result = array(
'id' => $template->id,
'theme' => $template->theme,
'content' => array( 'raw' => $template->content ),
'slug' => $template->slug,
'source' => $template->source,
'type' => $template->type,
'description' => $template->description,
'title' => array(
'raw' => $template->title,
'rendered' => $template->title,
),
'status' => $template->status,
'wp_id' => $template->wp_id,
'has_theme_file' => $template->has_theme_file,
);
if ( 'wp_template_part' === $template->type ) {
$result['area'] = $template->area;
}
$result = $this->add_additional_fields_to_object( $result, $request );
$response = rest_ensure_response( $result );
$links = $this->prepare_links( $template->id );
$response->add_links( $links );
if ( ! empty( $links['self']['href'] ) ) {
$actions = $this->get_available_actions();
$self = $links['self']['href'];
foreach ( $actions as $rel ) {
$response->add_link( $rel, $self );
}
}
return $response;
}
/**
* Prepares links for the request.
*
* @since 5.8.0
*
* @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 ),
),
'collection' => array(
'href' => rest_url( $base ),
),
'about' => array(
'href' => rest_url( 'wp/v2/types/' . $this->post_type ),
),
);
return $links;
}
/**
* Get the link relations available for the post and current user.
*
* @since 5.8.0
*
* @return array List of link relations.
*/
protected function get_available_actions() {
$rels = array();
$post_type = get_post_type_object( $this->post_type );
if ( current_user_can( $post_type->cap->publish_posts ) ) {
$rels[] = 'https://api.w.org/action-publish';
}
if ( current_user_can( 'unfiltered_html' ) ) {
$rels[] = 'https://api.w.org/action-unfiltered-html';
}
return $rels;
}
/**
* Retrieves the query params for the posts collection.
*
* @since 5.8.0
*
* @return array Collection parameters.
*/
public function get_collection_params() {
return array(
'context' => $this->get_context_param(),
'wp_id' => array(
'description' => __( 'Limit to the specified post id.' ),
'type' => 'integer',
),
);
}
/**
* Retrieves the block type' schema, conforming to JSON Schema.
*
* @since 5.8.0
*
* @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 template.' ),
'type' => 'string',
'context' => array( 'embed', 'view', 'edit' ),
'readonly' => true,
),
'slug' => array(
'description' => __( 'Unique slug identifying the template.' ),
'type' => 'string',
'context' => array( 'embed', 'view', 'edit' ),
'required' => true,
'minLength' => 1,
'pattern' => '[a-zA-Z_\-]+',
),
'theme' => array(
'description' => __( 'Theme identifier for the template.' ),
'type' => 'string',
'context' => array( 'embed', 'view', 'edit' ),
),
'source' => array(
'description' => __( 'Source of template' ),
'type' => 'string',
'context' => array( 'embed', 'view', 'edit' ),
'readonly' => true,
),
'content' => array(
'description' => __( 'Content of template.' ),
'type' => array( 'object', 'string' ),
'default' => '',
'context' => array( 'embed', 'view', 'edit' ),
),
'title' => array(
'description' => __( 'Title of template.' ),
'type' => array( 'object', 'string' ),
'default' => '',
'context' => array( 'embed', 'view', 'edit' ),
),
'description' => array(
'description' => __( 'Description of template.' ),
'type' => 'string',
'default' => '',
'context' => array( 'embed', 'view', 'edit' ),
),
'status' => array(
'description' => __( 'Status of template.' ),
'type' => 'string',
'default' => 'publish',
'context' => array( 'embed', 'view', 'edit' ),
),
'wp_id' => array(
'description' => __( 'Post ID.' ),
'type' => 'integer',
'context' => array( 'embed', 'view', 'edit' ),
'readonly' => true,
),
'has_theme_file' => array(
'description' => __( 'Theme file exists.' ),
'type' => 'bool',
'context' => array( 'embed', 'view', 'edit' ),
'readonly' => true,
),
),
);
$this->schema = $schema;
return $this->add_additional_fields_schema( $this->schema );
}
}
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