393 lines
12 KiB
PHP
393 lines
12 KiB
PHP
<?php
|
|
/**
|
|
* REST API: WP_REST_Autosaves_Controller class.
|
|
*
|
|
* @package WordPress
|
|
* @subpackage REST_API
|
|
* @since 5.0.0
|
|
*/
|
|
|
|
/**
|
|
* Core class used to access autosaves via the REST API.
|
|
*
|
|
* @since 5.0.0
|
|
*
|
|
* @see WP_REST_Controller
|
|
*/
|
|
class WP_REST_Autosaves_Controller extends WP_REST_Revisions_Controller {
|
|
|
|
/**
|
|
* Parent post type.
|
|
*
|
|
* @since 5.0.0
|
|
* @var string
|
|
*/
|
|
private $parent_post_type;
|
|
|
|
/**
|
|
* Parent post controller.
|
|
*
|
|
* @since 5.0.0
|
|
* @var WP_REST_Controller
|
|
*/
|
|
private $parent_controller;
|
|
|
|
/**
|
|
* Revision controller.
|
|
*
|
|
* @since 5.0.0
|
|
* @var WP_REST_Controller
|
|
*/
|
|
private $revisions_controller;
|
|
|
|
/**
|
|
* The base of the parent controller's route.
|
|
*
|
|
* @since 5.0.0
|
|
* @var string
|
|
*/
|
|
private $parent_base;
|
|
|
|
/**
|
|
* Constructor.
|
|
*
|
|
* @since 5.0.0
|
|
*
|
|
* @param string $parent_post_type Post type of the parent.
|
|
*/
|
|
public function __construct( $parent_post_type ) {
|
|
$this->parent_post_type = $parent_post_type;
|
|
$post_type_object = get_post_type_object( $parent_post_type );
|
|
|
|
// Ensure that post type-specific controller logic is available.
|
|
$parent_controller_class = ! empty( $post_type_object->rest_controller_class ) ? $post_type_object->rest_controller_class : 'WP_REST_Posts_Controller';
|
|
|
|
$this->parent_controller = new $parent_controller_class( $post_type_object->name );
|
|
$this->revisions_controller = new WP_REST_Revisions_Controller( $parent_post_type );
|
|
$this->rest_namespace = 'wp/v2';
|
|
$this->rest_base = 'autosaves';
|
|
$this->parent_base = ! empty( $post_type_object->rest_base ) ? $post_type_object->rest_base : $post_type_object->name;
|
|
}
|
|
|
|
/**
|
|
* Registers routes for autosaves.
|
|
*
|
|
* @since 5.0.0
|
|
*
|
|
* @see register_rest_route()
|
|
*/
|
|
public function register_routes() {
|
|
register_rest_route(
|
|
$this->rest_namespace,
|
|
'/' . $this->parent_base . '/(?P<parent>[\d]+)/' . $this->rest_base,
|
|
array(
|
|
'args' => array(
|
|
'parent' => array(
|
|
'description' => __( 'The ID for the parent of the object.' ),
|
|
'type' => 'integer',
|
|
),
|
|
),
|
|
array(
|
|
'methods' => WP_REST_Server::READABLE,
|
|
'callback' => array( $this, 'get_items' ),
|
|
'permission_callback' => array( $this->revisions_controller, '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' ),
|
|
)
|
|
);
|
|
|
|
register_rest_route(
|
|
$this->rest_namespace,
|
|
'/' . $this->parent_base . '/(?P<parent>[\d]+)/' . $this->rest_base . '/(?P<id>[\d]+)',
|
|
array(
|
|
'args' => array(
|
|
'parent' => array(
|
|
'description' => __( 'The ID for the parent of the object.' ),
|
|
'type' => 'integer',
|
|
),
|
|
'id' => array(
|
|
'description' => __( 'The ID for the object.' ),
|
|
'type' => 'integer',
|
|
),
|
|
),
|
|
array(
|
|
'methods' => WP_REST_Server::READABLE,
|
|
'callback' => array( $this, 'get_item' ),
|
|
'permission_callback' => array( $this->revisions_controller, 'get_item_permissions_check' ),
|
|
'args' => array(
|
|
'context' => $this->get_context_param( array( 'default' => 'view' ) ),
|
|
),
|
|
),
|
|
'schema' => array( $this, 'get_public_item_schema' ),
|
|
)
|
|
);
|
|
|
|
}
|
|
|
|
/**
|
|
* Get the parent post.
|
|
*
|
|
* @since 5.0.0
|
|
*
|
|
* @param int $parent_id Supplied ID.
|
|
* @return WP_Post|WP_Error Post object if ID is valid, WP_Error otherwise.
|
|
*/
|
|
protected function get_parent( $parent_id ) {
|
|
return $this->revisions_controller->get_parent( $parent_id );
|
|
}
|
|
|
|
/**
|
|
* Checks if a given request has access to create an autosave revision.
|
|
*
|
|
* Autosave revisions inherit permissions from the parent post,
|
|
* check if the current user has permission to edit the post.
|
|
*
|
|
* @since 5.0.0
|
|
*
|
|
* @param WP_REST_Request $request Full details about the request.
|
|
* @return true|WP_Error True if the request has access to create the item, WP_Error object otherwise.
|
|
*/
|
|
public function create_item_permissions_check( $request ) {
|
|
$id = $request->get_param( 'id' );
|
|
if ( empty( $id ) ) {
|
|
return new WP_Error( 'rest_post_invalid_id', __( 'Invalid item ID.' ), array( 'status' => 404 ) );
|
|
}
|
|
|
|
return $this->parent_controller->update_item_permissions_check( $request );
|
|
}
|
|
|
|
/**
|
|
* Creates, updates or deletes an autosave revision.
|
|
*
|
|
* @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 create_item( $request ) {
|
|
|
|
if ( ! defined( 'DOING_AUTOSAVE' ) ) {
|
|
define( 'DOING_AUTOSAVE', true );
|
|
}
|
|
|
|
$post = get_post( $request->get_param( 'id' ) );
|
|
|
|
if ( is_wp_error( $post ) ) {
|
|
return $post;
|
|
}
|
|
|
|
$prepared_post = $this->parent_controller->prepare_item_for_database( $request );
|
|
$prepared_post->ID = $post->ID;
|
|
$user_id = get_current_user_id();
|
|
|
|
if ( ( 'draft' === $post->post_status || 'auto-draft' === $post->post_status ) && $post->post_author == $user_id ) {
|
|
// Draft posts for the same author: autosaving updates the post and does not create a revision.
|
|
// Convert the post object to an array and add slashes, wp_update_post expects escaped array.
|
|
$autosave_id = wp_update_post( wp_slash( (array) $prepared_post ), true );
|
|
} else {
|
|
// Non-draft posts: create or update the post autosave.
|
|
$autosave_id = $this->create_post_autosave( (array) $prepared_post );
|
|
}
|
|
|
|
if ( is_wp_error( $autosave_id ) ) {
|
|
return $autosave_id;
|
|
}
|
|
|
|
$autosave = get_post( $autosave_id );
|
|
$request->set_param( 'context', 'edit' );
|
|
|
|
$response = $this->prepare_item_for_response( $autosave, $request );
|
|
$response = rest_ensure_response( $response );
|
|
|
|
return $response;
|
|
}
|
|
|
|
/**
|
|
* Get the autosave, if the ID is valid.
|
|
*
|
|
* @since 5.0.0
|
|
*
|
|
* @param WP_REST_Request $request Full data about the request.
|
|
* @return WP_Post|WP_Error Revision post object if ID is valid, WP_Error otherwise.
|
|
*/
|
|
public function get_item( $request ) {
|
|
$parent_id = (int) $request->get_param( 'parent' );
|
|
|
|
if ( $parent_id <= 0 ) {
|
|
return new WP_Error( 'rest_post_invalid_id', __( 'Invalid parent post ID.' ), array( 'status' => 404 ) );
|
|
}
|
|
|
|
$autosave = wp_get_post_autosave( $parent_id );
|
|
|
|
if ( ! $autosave ) {
|
|
return new WP_Error( 'rest_post_no_autosave', __( 'There is no autosave revision for this post.' ), array( 'status' => 404 ) );
|
|
}
|
|
|
|
$response = $this->prepare_item_for_response( $autosave, $request );
|
|
return $response;
|
|
}
|
|
|
|
/**
|
|
* Gets a collection of autosaves using wp_get_post_autosave.
|
|
*
|
|
* Contains the user's autosave, for empty if it doesn't exist.
|
|
*
|
|
* @since 5.0.0
|
|
*
|
|
* @param WP_REST_Request $request Full data about the request.
|
|
* @return WP_REST_Response|WP_Error Response object on success, or WP_Error object on failure.
|
|
*/
|
|
public function get_items( $request ) {
|
|
$parent = $this->get_parent( $request->get_param( 'parent' ) );
|
|
if ( is_wp_error( $parent ) ) {
|
|
return $parent;
|
|
}
|
|
|
|
$response = array();
|
|
$parent_id = $parent->ID;
|
|
$revisions = wp_get_post_revisions( $parent_id, array( 'check_enabled' => false ) );
|
|
|
|
foreach ( $revisions as $revision ) {
|
|
if ( false !== strpos( $revision->post_name, "{$parent_id}-autosave" ) ) {
|
|
$data = $this->prepare_item_for_response( $revision, $request );
|
|
$response[] = $this->prepare_response_for_collection( $data );
|
|
}
|
|
}
|
|
|
|
return rest_ensure_response( $response );
|
|
}
|
|
|
|
|
|
/**
|
|
* Retrieves the autosave's schema, conforming to JSON Schema.
|
|
*
|
|
* @since 5.0.0
|
|
*
|
|
* @return array Item schema data.
|
|
*/
|
|
public function get_item_schema() {
|
|
$schema = $this->revisions_controller->get_item_schema();
|
|
|
|
$schema['properties']['preview_link'] = array(
|
|
'description' => __( 'Preview link for the post.' ),
|
|
'type' => 'string',
|
|
'format' => 'uri',
|
|
'context' => array( 'edit' ),
|
|
'readonly' => true,
|
|
);
|
|
|
|
return $schema;
|
|
}
|
|
|
|
/**
|
|
* Creates autosave for the specified post.
|
|
*
|
|
* From wp-admin/post.php.
|
|
*
|
|
* @since 5.0.0
|
|
*
|
|
* @param mixed $post_data Associative array containing the post data.
|
|
* @return mixed The autosave revision ID or WP_Error.
|
|
*/
|
|
public function create_post_autosave( $post_data ) {
|
|
|
|
$post_id = (int) $post_data['ID'];
|
|
$post = get_post( $post_id );
|
|
|
|
if ( is_wp_error( $post ) ) {
|
|
return $post;
|
|
}
|
|
|
|
$user_id = get_current_user_id();
|
|
|
|
// Store one autosave per author. If there is already an autosave, overwrite it.
|
|
$old_autosave = wp_get_post_autosave( $post_id, $user_id );
|
|
|
|
if ( $old_autosave ) {
|
|
$new_autosave = _wp_post_revision_data( $post_data, true );
|
|
$new_autosave['ID'] = $old_autosave->ID;
|
|
$new_autosave['post_author'] = $user_id;
|
|
|
|
// If the new autosave has the same content as the post, delete the autosave.
|
|
$autosave_is_different = false;
|
|
|
|
foreach ( array_intersect( array_keys( $new_autosave ), array_keys( _wp_post_revision_fields( $post ) ) ) as $field ) {
|
|
if ( normalize_whitespace( $new_autosave[ $field ] ) != normalize_whitespace( $post->$field ) ) {
|
|
$autosave_is_different = true;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if ( ! $autosave_is_different ) {
|
|
wp_delete_post_revision( $old_autosave->ID );
|
|
return new WP_Error( 'rest_autosave_no_changes', __( 'There is nothing to save. The autosave and the post content are the same.' ), array( 'status' => 400 ) );
|
|
}
|
|
|
|
/**
|
|
* This filter is documented in wp-admin/post.php.
|
|
*/
|
|
do_action( 'wp_creating_autosave', $new_autosave );
|
|
|
|
// wp_update_post expects escaped array.
|
|
return wp_update_post( wp_slash( $new_autosave ) );
|
|
}
|
|
|
|
// Create the new autosave as a special post revision.
|
|
return _wp_put_post_revision( $post_data, true );
|
|
}
|
|
|
|
/**
|
|
* Prepares the revision for the REST response.
|
|
*
|
|
* @since 5.0.0
|
|
*
|
|
* @param WP_Post $post Post revision object.
|
|
* @param WP_REST_Request $request Request object.
|
|
*
|
|
* @return WP_REST_Response Response object.
|
|
*/
|
|
public function prepare_item_for_response( $post, $request ) {
|
|
|
|
$response = $this->revisions_controller->prepare_item_for_response( $post, $request );
|
|
|
|
$fields = $this->get_fields_for_response( $request );
|
|
|
|
if ( in_array( 'preview_link', $fields, true ) ) {
|
|
$parent_id = wp_is_post_autosave( $post );
|
|
$preview_post_id = false === $parent_id ? $post->ID : $parent_id;
|
|
$preview_query_args = array();
|
|
|
|
if ( false !== $parent_id ) {
|
|
$preview_query_args['preview_id'] = $parent_id;
|
|
$preview_query_args['preview_nonce'] = wp_create_nonce( 'post_preview_' . $parent_id );
|
|
}
|
|
|
|
$response->data['preview_link'] = get_preview_post_link( $preview_post_id, $preview_query_args );
|
|
}
|
|
|
|
$context = ! empty( $request['context'] ) ? $request['context'] : 'view';
|
|
$response->data = $this->add_additional_fields_to_object( $response->data, $request );
|
|
$response->data = $this->filter_response_by_context( $response->data, $context );
|
|
|
|
/**
|
|
* Filters a revision returned from the API.
|
|
*
|
|
* Allows modification of the revision right before it is returned.
|
|
*
|
|
* @since 5.0.0
|
|
*
|
|
* @param WP_REST_Response $response The response object.
|
|
* @param WP_Post $post The original revision object.
|
|
* @param WP_REST_Request $request Request used to generate the response.
|
|
*/
|
|
return apply_filters( 'rest_prepare_autosave', $response, $post, $request );
|
|
}
|
|
}
|