?<h3>D¨ızenle: class-wp-rest-template-revisions-controller.php</h3>
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/**
 * REST API: WP_REST_Template_Revisions_Controller class
 *
 * @package WordPress
 * @subpackage REST_API
 * @since 6.4.0
 */

/**
 * Core class used to access template revisions via the REST API.
 *
 * @since 6.4.0
 *
 * @see WP_REST_Controller
 */
class WP_REST_Template_Revisions_Controller extends WP_REST_Revisions_Controller {
	/**
	 * Parent post type.
	 *
	 * @since 6.4.0
	 * @var string
	 */
	private $parent_post_type;

	/**
	 * Parent controller.
	 *
	 * @since 6.4.0
	 * @var WP_REST_Controller
	 */
	private $parent_controller;

	/**
	 * The base of the parent controller&#039;s route.
	 *
	 * @since 6.4.0
	 * @var string
	 */
	private $parent_base;

	/**
	 * Constructor.
	 *
	 * @since 6.4.0
	 *
	 * @param string $parent_post_type Post type of the parent.
	 */
	public function __construct( $parent_post_type ) {
		parent::__construct( $parent_post_type );
		$this-&gt;parent_post_type = $parent_post_type;
		$post_type_object       = get_post_type_object( $parent_post_type );
		$parent_controller      = $post_type_object-&gt;get_rest_controller();

		if ( ! $parent_controller ) {
			$parent_controller = new WP_REST_Templates_Controller( $parent_post_type );
		}

		$this-&gt;parent_controller = $parent_controller;
		$this-&gt;rest_base         = &#039;revisions&#039;;
		$this-&gt;parent_base       = ! empty( $post_type_object-&gt;rest_base ) ? $post_type_object-&gt;rest_base : $post_type_object-&gt;name;
		$this-&gt;namespace         = ! empty( $post_type_object-&gt;rest_namespace ) ? $post_type_object-&gt;rest_namespace : &#039;wp/v2&#039;;
	}

	/**
	 * Registers the routes for revisions based on post types supporting revisions.
	 *
	 * @since 6.4.0
	 *
	 * @see register_rest_route()
	 */
	public function register_routes() {

		register_rest_route(
			$this-&gt;namespace,
			sprintf(
				&#039;/%s/(?P&lt;parent&gt;%s%s)/%s&#039;,
				$this-&gt;parent_base,
				/*
				 * Matches theme&#039;s directory: `/themes/&lt;subdirectory&gt;/&lt;theme&gt;/` or `/themes/&lt;theme&gt;/`.
				 * Excludes invalid directory name characters: `/:&lt;&gt;*?&quot;|`.
				 */
				&#039;([^\/:&lt;&gt;\*\?&quot;\|]+(?:\/[^\/:&lt;&gt;\*\?&quot;\|]+)?)&#039;,
				// Matches the template name.
				&#039;[\/\w%-]+&#039;,
				$this-&gt;rest_base
			),
			array(
				&#039;args&#039;   =&gt; array(
					&#039;parent&#039; =&gt; array(
						&#039;description&#039;       =&gt; __( &#039;The id of a template&#039; ),
						&#039;type&#039;              =&gt; &#039;string&#039;,
						&#039;sanitize_callback&#039; =&gt; array( $this-&gt;parent_controller, &#039;_sanitize_template_id&#039; ),
					),
				),
				array(
					&#039;methods&#039;             =&gt; WP_REST_Server::READABLE,
					&#039;callback&#039;            =&gt; array( $this, &#039;get_items&#039; ),
					&#039;permission_callback&#039; =&gt; array( $this, &#039;get_items_permissions_check&#039; ),
					&#039;args&#039;                =&gt; $this-&gt;get_collection_params(),
				),
				&#039;schema&#039; =&gt; array( $this, &#039;get_public_item_schema&#039; ),
			)
		);

		register_rest_route(
			$this-&gt;namespace,
			sprintf(
				&#039;/%s/(?P&lt;parent&gt;%s%s)/%s/%s&#039;,
				$this-&gt;parent_base,
				/*
				 * Matches theme&#039;s directory: `/themes/&lt;subdirectory&gt;/&lt;theme&gt;/` or `/themes/&lt;theme&gt;/`.
				 * Excludes invalid directory name characters: `/:&lt;&gt;*?&quot;|`.
				 */
				&#039;([^\/:&lt;&gt;\*\?&quot;\|]+(?:\/[^\/:&lt;&gt;\*\?&quot;\|]+)?)&#039;,
				// Matches the template name.
				&#039;[\/\w%-]+&#039;,
				$this-&gt;rest_base,
				&#039;(?P&lt;id&gt;[\d]+)&#039;
			),
			array(
				&#039;args&#039;   =&gt; array(
					&#039;parent&#039; =&gt; array(
						&#039;description&#039;       =&gt; __( &#039;The id of a template&#039; ),
						&#039;type&#039;              =&gt; &#039;string&#039;,
						&#039;sanitize_callback&#039; =&gt; array( $this-&gt;parent_controller, &#039;_sanitize_template_id&#039; ),
					),
					&#039;id&#039;     =&gt; array(
						&#039;description&#039; =&gt; __( &#039;Unique identifier for the revision.&#039; ),
						&#039;type&#039;        =&gt; &#039;integer&#039;,
					),
				),
				array(
					&#039;methods&#039;             =&gt; WP_REST_Server::READABLE,
					&#039;callback&#039;            =&gt; array( $this, &#039;get_item&#039; ),
					&#039;permission_callback&#039; =&gt; array( $this, &#039;get_item_permissions_check&#039; ),
					&#039;args&#039;                =&gt; array(
						&#039;context&#039; =&gt; $this-&gt;get_context_param( array( &#039;default&#039; =&gt; &#039;view&#039; ) ),
					),
				),
				array(
					&#039;methods&#039;             =&gt; WP_REST_Server::DELETABLE,
					&#039;callback&#039;            =&gt; array( $this, &#039;delete_item&#039; ),
					&#039;permission_callback&#039; =&gt; array( $this, &#039;delete_item_permissions_check&#039; ),
					&#039;args&#039;                =&gt; array(
						&#039;force&#039; =&gt; array(
							&#039;type&#039;        =&gt; &#039;boolean&#039;,
							&#039;default&#039;     =&gt; false,
							&#039;description&#039; =&gt; __( &#039;Required to be true, as revisions do not support trashing.&#039; ),
						),
					),
				),
				&#039;schema&#039; =&gt; array( $this, &#039;get_public_item_schema&#039; ),
			)
		);
	}

	/**
	 * Gets the parent post, if the template ID is valid.
	 *
	 * @since 6.4.0
	 *
	 * @param string $parent_template_id Supplied ID.
	 * @return WP_Post|WP_Error Post object if ID is valid, WP_Error otherwise.
	 */
	protected function get_parent( $parent_template_id ) {
		$template = get_block_template( $parent_template_id, $this-&gt;parent_post_type );

		if ( ! $template ) {
			return new WP_Error(
				&#039;rest_post_invalid_parent&#039;,
				__( &#039;Invalid template parent ID.&#039; ),
				array( &#039;status&#039; =&gt; WP_Http::NOT_FOUND )
			);
		}

		$parent_post_id = isset( $template-&gt;wp_id ) ? (int) $template-&gt;wp_id : 0;

		if ( $parent_post_id &lt;= 0 ) {
			return new WP_Error(
				&#039;rest_invalid_template&#039;,
				__( &#039;Templates based on theme files can\&#039;t have revisions.&#039; ),
				array( &#039;status&#039; =&gt; WP_Http::BAD_REQUEST )
			);
		}

		return get_post( $template-&gt;wp_id );
	}

	/**
	 * Prepares the item for the REST response.
	 *
	 * @since 6.4.0
	 *
	 * @param WP_Post         $item    Post revision object.
	 * @param WP_REST_Request $request Request object.
	 * @return WP_REST_Response Response object.
	 */
	public function prepare_item_for_response( $item, $request ) {
		$template = _build_block_template_result_from_post( $item );
		$response = $this-&gt;parent_controller-&gt;prepare_item_for_response( $template, $request );

		// Don&#039;t prepare the response body for HEAD requests.
		if ( $request-&gt;is_method( &#039;HEAD&#039; ) ) {
			return $response;
		}

		$fields = $this-&gt;get_fields_for_response( $request );
		$data   = $response-&gt;get_data();

		if ( in_array( &#039;parent&#039;, $fields, true ) ) {
			$data[&#039;parent&#039;] = (int) $item-&gt;post_parent;
		}

		$context = ! empty( $request[&#039;context&#039;] ) ? $request[&#039;context&#039;] : &#039;view&#039;;
		$data    = $this-&gt;filter_response_by_context( $data, $context );

		// Wrap the data in a response object.
		$response = new WP_REST_Response( $data );

		if ( rest_is_field_included( &#039;_links&#039;, $fields ) || rest_is_field_included( &#039;_embedded&#039;, $fields ) ) {
			$links = $this-&gt;prepare_links( $template );
			$response-&gt;add_links( $links );
		}

		return $response;
	}

	/**
	 * Checks if a given request has access to delete a revision.
	 *
	 * @since 6.4.0
	 *
	 * @param WP_REST_Request $request Full details about the request.
	 * @return true|WP_Error True if the request has access to delete the item, WP_Error object otherwise.
	 */
	public function delete_item_permissions_check( $request ) {
		$parent = $this-&gt;get_parent( $request[&#039;parent&#039;] );
		if ( is_wp_error( $parent ) ) {
			return $parent;
		}

		if ( ! current_user_can( &#039;delete_post&#039;, $parent-&gt;ID ) ) {
			return new WP_Error(
				&#039;rest_cannot_delete&#039;,
				__( &#039;Sorry, you are not allowed to delete revisions of this post.&#039; ),
				array( &#039;status&#039; =&gt; rest_authorization_required_code() )
			);
		}

		$revision = $this-&gt;get_revision( $request[&#039;id&#039;] );
		if ( is_wp_error( $revision ) ) {
			return $revision;
		}

		if ( ! current_user_can( &#039;edit_theme_options&#039; ) ) {
			return new WP_Error(
				&#039;rest_cannot_delete&#039;,
				__( &#039;Sorry, you are not allowed to delete this revision.&#039; ),
				array( &#039;status&#039; =&gt; rest_authorization_required_code() )
			);
		}

		return true;
	}

	/**
	 * Prepares links for the request.
	 *
	 * @since 6.4.0
	 *
	 * @param WP_Block_Template $template Template.
	 * @return array Links for the given post.
	 */
	protected function prepare_links( $template ) {
		$links = array(
			&#039;self&#039;   =&gt; array(
				&#039;href&#039; =&gt; rest_url( sprintf( &#039;/%s/%s/%s/%s/%d&#039;, $this-&gt;namespace, $this-&gt;parent_base, $template-&gt;id, $this-&gt;rest_base, $template-&gt;wp_id ) ),
			),
			&#039;parent&#039; =&gt; array(
				&#039;href&#039; =&gt; rest_url( sprintf( &#039;/%s/%s/%s&#039;, $this-&gt;namespace, $this-&gt;parent_base, $template-&gt;id ) ),
			),
		);

		return $links;
	}

	/**
	 * Retrieves the item&#039;s schema, conforming to JSON Schema.
	 *
	 * @since 6.4.0
	 *
	 * @return array Item schema data.
	 */
	public function get_item_schema() {
		if ( $this-&gt;schema ) {
			return $this-&gt;add_additional_fields_schema( $this-&gt;schema );
		}

		$schema = $this-&gt;parent_controller-&gt;get_item_schema();

		$schema[&#039;properties&#039;][&#039;parent&#039;] = array(
			&#039;description&#039; =&gt; __( &#039;The ID for the parent of the revision.&#039; ),
			&#039;type&#039;        =&gt; &#039;integer&#039;,
			&#039;context&#039;     =&gt; array( &#039;view&#039;, &#039;edit&#039;, &#039;embed&#039; ),
		);

		$this-&gt;schema = $schema;

		return $this-&gt;add_additional_fields_schema( $this-&gt;schema );
	}
}
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