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Prior to about 2013, many class methods lacked even access modifiers which made the `@access` notations that much more useful. Now that we've gotten to a point where the codebase is more mature from a maintenance perspective and we can finally remove these notations. Notable exceptions to this change include standalone functions notated as private as well as some classes still considered to represent "private" APIs. See #41452. Built from https://develop.svn.wordpress.org/trunk@41162 git-svn-id: http://core.svn.wordpress.org/trunk@41002 1a063a9b-81f0-0310-95a4-ce76da25c4cd
201 lines
5.5 KiB
PHP
201 lines
5.5 KiB
PHP
<?php
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/**
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* WP_oEmbed_Controller class, used to provide an oEmbed endpoint.
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*
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* @package WordPress
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* @subpackage Embeds
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* @since 4.4.0
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*/
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/**
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* oEmbed API endpoint controller.
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*
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* Registers the API route and delivers the response data.
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* The output format (XML or JSON) is handled by the REST API.
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*
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* @since 4.4.0
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*/
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final class WP_oEmbed_Controller {
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/**
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* Register the oEmbed REST API route.
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*
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* @since 4.4.0
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*/
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public function register_routes() {
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/**
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* Filters the maxwidth oEmbed parameter.
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*
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* @since 4.4.0
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*
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* @param int $maxwidth Maximum allowed width. Default 600.
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*/
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$maxwidth = apply_filters( 'oembed_default_width', 600 );
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register_rest_route( 'oembed/1.0', '/embed', array(
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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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'args' => array(
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'url' => array(
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'required' => true,
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'sanitize_callback' => 'esc_url_raw',
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),
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'format' => array(
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'default' => 'json',
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'sanitize_callback' => 'wp_oembed_ensure_format',
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),
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'maxwidth' => array(
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'default' => $maxwidth,
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'sanitize_callback' => 'absint',
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),
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),
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),
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) );
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register_rest_route( 'oembed/1.0', '/proxy', array(
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array(
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'methods' => WP_REST_Server::READABLE,
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'callback' => array( $this, 'get_proxy_item' ),
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'permission_callback' => array( $this, 'get_proxy_item_permissions_check' ),
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'args' => array(
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'url' => array(
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'description' => __( 'The URL of the resource for which to fetch oEmbed data.' ),
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'type' => 'string',
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'required' => true,
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'sanitize_callback' => 'esc_url_raw',
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),
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'format' => array(
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'description' => __( 'The oEmbed format to use.' ),
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'type' => 'string',
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'default' => 'json',
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'enum' => array(
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'json',
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'xml',
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),
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),
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'maxwidth' => array(
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'description' => __( 'The maximum width of the embed frame in pixels.' ),
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'type' => 'integer',
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'default' => $maxwidth,
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'sanitize_callback' => 'absint',
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),
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'maxheight' => array(
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'description' => __( 'The maximum height of the embed frame in pixels.' ),
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'type' => 'integer',
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'sanitize_callback' => 'absint',
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),
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'discover' => array(
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'description' => __( 'Whether to perform an oEmbed discovery request for non-whitelisted providers.' ),
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'type' => 'boolean',
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'default' => true,
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),
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),
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),
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) );
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}
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/**
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* Callback for the embed API endpoint.
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*
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* Returns the JSON object for the post.
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*
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* @since 4.4.0
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*
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* @param WP_REST_Request $request Full data about the request.
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* @return WP_Error|array oEmbed response data or WP_Error on failure.
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*/
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public function get_item( $request ) {
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$post_id = url_to_postid( $request['url'] );
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/**
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* Filters the determined post ID.
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*
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* @since 4.4.0
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*
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* @param int $post_id The post ID.
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* @param string $url The requested URL.
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*/
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$post_id = apply_filters( 'oembed_request_post_id', $post_id, $request['url'] );
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$data = get_oembed_response_data( $post_id, $request['maxwidth'] );
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if ( ! $data ) {
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return new WP_Error( 'oembed_invalid_url', get_status_header_desc( 404 ), array( 'status' => 404 ) );
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}
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return $data;
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}
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/**
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* Checks if current user can make a proxy oEmbed request.
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*
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* @since 4.8.0
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*
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* @return true|WP_Error True if the request has read access, WP_Error object otherwise.
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*/
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public function get_proxy_item_permissions_check() {
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if ( ! current_user_can( 'edit_posts' ) ) {
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return new WP_Error( 'rest_forbidden', __( 'Sorry, you are not allowed to make proxied oEmbed requests.' ), array( 'status' => rest_authorization_required_code() ) );
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}
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return true;
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}
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/**
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* Callback for the proxy API endpoint.
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*
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* Returns the JSON object for the proxied item.
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*
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* @since 4.8.0
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*
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* @see WP_oEmbed::get_html()
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* @param WP_REST_Request $request Full data about the request.
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* @return object|WP_Error oEmbed response data or WP_Error on failure.
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*/
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public function get_proxy_item( $request ) {
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$args = $request->get_params();
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// Serve oEmbed data from cache if set.
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unset( $args['_wpnonce'] );
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$cache_key = 'oembed_' . md5( serialize( $args ) );
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$data = get_transient( $cache_key );
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if ( ! empty( $data ) ) {
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return $data;
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}
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$url = $request['url'];
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unset( $args['url'] );
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// Copy maxwidth/maxheight to width/height since WP_oEmbed::fetch() uses these arg names.
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if ( isset( $args['maxwidth'] ) ) {
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$args['width'] = $args['maxwidth'];
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}
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if ( isset( $args['maxheight'] ) ) {
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$args['height'] = $args['maxheight'];
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}
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$data = _wp_oembed_get_object()->get_data( $url, $args );
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if ( false === $data ) {
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return new WP_Error( 'oembed_invalid_url', get_status_header_desc( 404 ), array( 'status' => 404 ) );
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}
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/**
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* Filters the oEmbed TTL value (time to live).
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*
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* Similar to the {@see 'oembed_ttl'} filter, but for the REST API
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* oEmbed proxy endpoint.
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*
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* @since 4.8.0
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*
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* @param int $time Time to live (in seconds).
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* @param string $url The attempted embed URL.
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* @param array $args An array of embed request arguments.
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*/
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$ttl = apply_filters( 'rest_oembed_ttl', DAY_IN_SECONDS, $url, $args );
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set_transient( $cache_key, $data, $ttl );
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return $data;
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}
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}
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