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<?php

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/**

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* REST API: WP_REST_Comments_Controller class

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* @package WordPress

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* @subpackage REST_API

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* @since 4.7.0

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/**

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* Core controller used to access comments via the REST API.

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* @since 4.7.0

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* @see WP_REST_Controller

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class WP_REST_Comments_Controller extends WP_REST_Controller {

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/**

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* Instance of a comment meta fields object.

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* @since 4.7.0

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* @var WP_REST_Comment_Meta_Fields

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protected $meta;

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/**

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* Constructor.

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* @since 4.7.0

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public function __construct() {

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$this->namespace = 'wp/v2';

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$this->rest_base = 'comments';

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$this->meta = new WP_REST_Comment_Meta_Fields();

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}

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/**

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* Registers the routes for comments.

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* @since 4.7.0

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* @see register_rest_route()

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public function register_routes() {

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register_rest_route(

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$this->namespace,

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'/' . $this->rest_base,

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array(

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array(

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'methods' => WP_REST_Server::READABLE,

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'callback' => array( $this, 'get_items' ),

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'permission_callback' => array( $this, 'get_items_permissions_check' ),

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'args' => $this->get_collection_params(),

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array(

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'methods' => WP_REST_Server::CREATABLE,

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'callback' => array( $this, 'create_item' ),

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'permission_callback' => array( $this, 'create_item_permissions_check' ),

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'args' => $this->get_endpoint_args_for_item_schema( WP_REST_Server::CREATABLE ),

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'schema' => array( $this, 'get_public_item_schema' ),

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)

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);

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register_rest_route(

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$this->namespace,

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'/' . $this->rest_base . '/(?P<id>[\d]+)',

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array(

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'args' => array(

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'id' => array(

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'description' => __( 'Unique identifier for the comment.' ),

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'type' => 'integer',

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array(

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'methods' => WP_REST_Server::READABLE,

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'callback' => array( $this, 'get_item' ),

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'permission_callback' => array( $this, 'get_item_permissions_check' ),

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'args' => array(

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'context' => $this->get_context_param( array( 'default' => 'view' ) ),

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'password' => array(

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'description' => __( 'The password for the parent post of the comment (if the post is password protected).' ),

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'type' => 'string',

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array(

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'methods' => WP_REST_Server::EDITABLE,

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'callback' => array( $this, 'update_item' ),

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'permission_callback' => array( $this, 'update_item_permissions_check' ),

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'args' => $this->get_endpoint_args_for_item_schema( WP_REST_Server::EDITABLE ),

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array(

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'methods' => WP_REST_Server::DELETABLE,

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'callback' => array( $this, 'delete_item' ),

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'permission_callback' => array( $this, 'delete_item_permissions_check' ),

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'args' => array(

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'force' => array(

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'type' => 'boolean',

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'default' => false,

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'description' => __( 'Whether to bypass Trash and force deletion.' ),

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'password' => array(

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'description' => __( 'The password for the parent post of the comment (if the post is password protected).' ),

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'type' => 'string',

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'schema' => array( $this, 'get_public_item_schema' ),

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)

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);

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}

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/**

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* Checks if a given request has access to read comments.

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* @since 4.7.0

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* @param WP_REST_Request $request Full details about the request.

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* @return true|WP_Error True if the request has read access, error object otherwise.

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public function get_items_permissions_check( $request ) {

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if ( ! empty( $request['post'] ) ) {

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foreach ( (array) $request['post'] as $post_id ) {

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$post = get_post( $post_id );

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if ( ! empty( $post_id ) && $post && ! $this->check_read_post_permission( $post, $request ) ) {

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return new WP_Error(

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'rest_cannot_read_post',

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__( 'Sorry, you are not allowed to read the post for this comment.' ),

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array( 'status' => rest_authorization_required_code() )

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);

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} elseif ( 0 === $post_id && ! current_user_can( 'moderate_comments' ) ) {

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return new WP_Error(

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'rest_cannot_read',

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__( 'Sorry, you are not allowed to read comments without a post.' ),

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array( 'status' => rest_authorization_required_code() )

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);

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}

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}

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}

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if ( ! empty( $request['context'] ) && 'edit' === $request['context'] && ! current_user_can( 'moderate_comments' ) ) {

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return new WP_Error(

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'rest_forbidden_context',

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__( 'Sorry, you are not allowed to edit comments.' ),

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array( 'status' => rest_authorization_required_code() )

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);

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}

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if ( ! current_user_can( 'edit_posts' ) ) {

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$protected_params = array( 'author', 'author_exclude', 'author_email', 'type', 'status' );

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$forbidden_params = array();

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foreach ( $protected_params as $param ) {

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if ( 'status' === $param ) {

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if ( 'approve' !== $request[ $param ] ) {

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$forbidden_params[] = $param;

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}

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} elseif ( 'type' === $param ) {

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if ( 'comment' !== $request[ $param ] ) {

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$forbidden_params[] = $param;

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}

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} elseif ( ! empty( $request[ $param ] ) ) {

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$forbidden_params[] = $param;

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}

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}

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if ( ! empty( $forbidden_params ) ) {

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return new WP_Error(

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'rest_forbidden_param',

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/* translators: %s: List of forbidden parameters. */

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sprintf( __( 'Query parameter not permitted: %s' ), implode( ', ', $forbidden_params ) ),

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array( 'status' => rest_authorization_required_code() )

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);

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}

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}

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return true;

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}

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/**

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* Retrieves a list of comment items.

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* @since 4.7.0

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* @param WP_REST_Request $request Full details about the request.

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* @return WP_REST_Response|WP_Error Response object on success, or error object on failure.

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public function get_items( $request ) {

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// Retrieve the list of registered collection query parameters.

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$registered = $this->get_collection_params();

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* This array defines mappings between public API query parameters whose

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* values are accepted as-passed, and their internal WP_Query parameter

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* name equivalents (some are the same). Only values which are also

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* present in $registered will be set.

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$parameter_mappings = array(

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'author' => 'author__in',

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'author_email' => 'author_email',

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'author_exclude' => 'author__not_in',

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'exclude' => 'comment__not_in',

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'include' => 'comment__in',

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'offset' => 'offset',

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'order' => 'order',

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'parent' => 'parent__in',

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'parent_exclude' => 'parent__not_in',

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'per_page' => 'number',

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'post' => 'post__in',

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'search' => 'search',

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'status' => 'status',

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'type' => 'type',

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);

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$prepared_args = array();

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* For each known parameter which is both registered and present in the request,

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* set the parameter's value on the query $prepared_args.

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foreach ( $parameter_mappings as $api_param => $wp_param ) {

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if ( isset( $registered[ $api_param ], $request[ $api_param ] ) ) {

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$prepared_args[ $wp_param ] = $request[ $api_param ];

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}

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}

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// Ensure certain parameter values default to empty strings.

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foreach ( array( 'author_email', 'search' ) as $param ) {

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if ( ! isset( $prepared_args[ $param ] ) ) {

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$prepared_args[ $param ] = '';

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}

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}

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if ( isset( $registered['orderby'] ) ) {

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$prepared_args['orderby'] = $this->normalize_query_param( $request['orderby'] );

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}

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$prepared_args['no_found_rows'] = false;

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$prepared_args['update_comment_post_cache'] = true;

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$prepared_args['date_query'] = array();

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// Set before into date query. Date query must be specified as an array of an array.

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if ( isset( $registered['before'], $request['before'] ) ) {

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$prepared_args['date_query'][0]['before'] = $request['before'];

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}

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// Set after into date query. Date query must be specified as an array of an array.

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if ( isset( $registered['after'], $request['after'] ) ) {

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$prepared_args['date_query'][0]['after'] = $request['after'];

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}

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if ( isset( $registered['page'] ) && empty( $request['offset'] ) ) {

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$prepared_args['offset'] = $prepared_args['number'] * ( absint( $request['page'] ) - 1 );

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}

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/**

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* Filters WP_Comment_Query arguments when querying comments via the REST API.

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* @since 4.7.0

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* @link https://developer.wordpress.org/reference/classes/wp_comment_query/

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* @param array $prepared_args Array of arguments for WP_Comment_Query.

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* @param WP_REST_Request $request The REST API request.

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$prepared_args = apply_filters( 'rest_comment_query', $prepared_args, $request );

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$query = new WP_Comment_Query();

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$query_result = $query->query( $prepared_args );

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$comments = array();

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foreach ( $query_result as $comment ) {

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if ( ! $this->check_read_permission( $comment, $request ) ) {

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continue;

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}

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$data = $this->prepare_item_for_response( $comment, $request );

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$comments[] = $this->prepare_response_for_collection( $data );

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}

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$total_comments = (int) $query->found_comments;

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$max_pages = (int) $query->max_num_pages;

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if ( $total_comments < 1 ) {

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// Out-of-bounds, run the query again without LIMIT for total count.

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unset( $prepared_args['number'], $prepared_args['offset'] );

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$query = new WP_Comment_Query();

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$prepared_args['count'] = true;

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$prepared_args['orderby'] = 'none';

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$total_comments = $query->query( $prepared_args );

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$max_pages = (int) ceil( $total_comments / $request['per_page'] );

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}

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$response = rest_ensure_response( $comments );

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$response->header( 'X-WP-Total', $total_comments );

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$response->header( 'X-WP-TotalPages', $max_pages );

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$base = add_query_arg( urlencode_deep( $request->get_query_params() ), rest_url( sprintf( '%s/%s', $this->namespace, $this->rest_base ) ) );

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if ( $request['page'] > 1 ) {

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$prev_page = $request['page'] - 1;

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if ( $prev_page > $max_pages ) {

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$prev_page = $max_pages;

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}

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$prev_link = add_query_arg( 'page', $prev_page, $base );

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$response->link_header( 'prev', $prev_link );

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}

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if ( $max_pages > $request['page'] ) {

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$next_page = $request['page'] + 1;

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$next_link = add_query_arg( 'page', $next_page, $base );

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$response->link_header( 'next', $next_link );

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}

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return $response;

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}

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/**

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* Get the comment, if the ID is valid.

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* @since 4.7.2

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* @param int $id Supplied ID.

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* @return WP_Comment|WP_Error Comment object if ID is valid, WP_Error otherwise.

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protected function get_comment( $id ) {

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$error = new WP_Error(

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'rest_comment_invalid_id',

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__( 'Invalid comment ID.' ),

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array( 'status' => 404 )

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);

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if ( (int) $id <= 0 ) {

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return $error;

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}

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$id = (int) $id;

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$comment = get_comment( $id );

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if ( empty( $comment ) ) {

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return $error;

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}

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if ( ! empty( $comment->comment_post_ID ) ) {

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$post = get_post( (int) $comment->comment_post_ID );

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if ( empty( $post ) ) {

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return new WP_Error(

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'rest_post_invalid_id',

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__( 'Invalid post ID.' ),

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array( 'status' => 404 )

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);

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}

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}

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return $comment;

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}

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/**

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* Checks if a given request has access to read the comment.

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* @since 4.7.0

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* @param WP_REST_Request $request Full details about the request.

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* @return true|WP_Error True if the request has read access for the item, error object otherwise.

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public function get_item_permissions_check( $request ) {

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$comment = $this->get_comment( $request['id'] );

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if ( is_wp_error( $comment ) ) {

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return $comment;

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}

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if ( ! empty( $request['context'] ) && 'edit' === $request['context'] && ! current_user_can( 'moderate_comments' ) ) {

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return new WP_Error(

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'rest_forbidden_context',

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__( 'Sorry, you are not allowed to edit comments.' ),

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array( 'status' => rest_authorization_required_code() )

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);

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}

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$post = get_post( $comment->comment_post_ID );

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if ( ! $this->check_read_permission( $comment, $request ) ) {

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return new WP_Error(

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'rest_cannot_read',

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__( 'Sorry, you are not allowed to read this comment.' ),

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array( 'status' => rest_authorization_required_code() )

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);

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}

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if ( $post && ! $this->check_read_post_permission( $post, $request ) ) {

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return new WP_Error(

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'rest_cannot_read_post',

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__( 'Sorry, you are not allowed to read the post for this comment.' ),

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array( 'status' => rest_authorization_required_code() )

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);

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}

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return true;

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}

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/**

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* Retrieves a comment.

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* @since 4.7.0

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* @param WP_REST_Request $request Full details about the request.

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* @return WP_REST_Response|WP_Error Response object on success, or error object on failure.

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public function get_item( $request ) {

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$comment = $this->get_comment( $request['id'] );

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if ( is_wp_error( $comment ) ) {

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return $comment;

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}

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$data = $this->prepare_item_for_response( $comment, $request );

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$response = rest_ensure_response( $data );

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return $response;

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}

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/**

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* Checks if a given request has access to create a comment.

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* @since 4.7.0

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* @param WP_REST_Request $request Full details about the request.

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* @return true|WP_Error True if the request has access to create items, error object otherwise.

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public function create_item_permissions_check( $request ) {

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if ( ! is_user_logged_in() ) {

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if ( get_option( 'comment_registration' ) ) {

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return new WP_Error(

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'rest_comment_login_required',

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__( 'Sorry, you must be logged in to comment.' ),

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array( 'status' => 401 )

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);

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}

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/**

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* Filters whether comments can be created via the REST API without authentication.

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* Enables creating comments for anonymous users.

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* @since 4.7.0

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* @param bool $allow_anonymous Whether to allow anonymous comments to

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* be created. Default `false`.

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* @param WP_REST_Request $request Request used to generate the

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* response.

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$allow_anonymous = apply_filters( 'rest_allow_anonymous_comments', false, $request );

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if ( ! $allow_anonymous ) {

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return new WP_Error(

[468] Fix | Delete

'rest_comment_login_required',

[469] Fix | Delete

__( 'Sorry, you must be logged in to comment.' ),

[470] Fix | Delete

array( 'status' => 401 )

[471] Fix | Delete

);

[472] Fix | Delete

}

[473] Fix | Delete

}

[474] Fix | Delete

[475] Fix | Delete

// Limit who can set comment `author`, `author_ip` or `status` to anything other than the default.

[476] Fix | Delete

if ( isset( $request['author'] ) && get_current_user_id() !== $request['author'] && ! current_user_can( 'moderate_comments' ) ) {

[477] Fix | Delete

return new WP_Error(

[478] Fix | Delete

'rest_comment_invalid_author',

[479] Fix | Delete

/* translators: %s: Request parameter. */

[480] Fix | Delete

sprintf( __( "Sorry, you are not allowed to edit '%s' for comments." ), 'author' ),

[481] Fix | Delete

array( 'status' => rest_authorization_required_code() )

[482] Fix | Delete

);

[483] Fix | Delete

}

[484] Fix | Delete

[485] Fix | Delete

if ( isset( $request['author_ip'] ) && ! current_user_can( 'moderate_comments' ) ) {

[486] Fix | Delete

if ( empty( $_SERVER['REMOTE_ADDR'] ) || $request['author_ip'] !== $_SERVER['REMOTE_ADDR'] ) {

[487] Fix | Delete

return new WP_Error(

[488] Fix | Delete

'rest_comment_invalid_author_ip',

[489] Fix | Delete

/* translators: %s: Request parameter. */

[490] Fix | Delete

sprintf( __( "Sorry, you are not allowed to edit '%s' for comments." ), 'author_ip' ),

[491] Fix | Delete

array( 'status' => rest_authorization_required_code() )

[492] Fix | Delete

);

[493] Fix | Delete

}

[494] Fix | Delete

}

[495] Fix | Delete

[496] Fix | Delete

if ( isset( $request['status'] ) && ! current_user_can( 'moderate_comments' ) ) {

[497] Fix | Delete

return new WP_Error(

[498] Fix | Delete

'rest_comment_invalid_status',

[499] Fix | Delete

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