531 lines
18 KiB
PHP
531 lines
18 KiB
PHP
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<?php
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/**
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* Administration: Community Events class.
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*
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* @package WordPress
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* @subpackage Administration
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* @since 4.8.0
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*/
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/**
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* Class WP_Community_Events.
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*
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* A client for api.wordpress.org/events.
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*
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* @since 4.8.0
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*/
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#[AllowDynamicProperties]
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class WP_Community_Events {
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/**
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* ID for a WordPress user account.
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*
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* @since 4.8.0
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*
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* @var int
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*/
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protected $user_id = 0;
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/**
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* Stores location data for the user.
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*
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* @since 4.8.0
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*
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* @var false|array
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*/
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protected $user_location = false;
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/**
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* Constructor for WP_Community_Events.
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*
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* @since 4.8.0
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*
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* @param int $user_id WP user ID.
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* @param false|array $user_location {
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* Stored location data for the user. false to pass no location.
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*
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* @type string $description The name of the location
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* @type string $latitude The latitude in decimal degrees notation, without the degree
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* symbol. e.g.: 47.615200.
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* @type string $longitude The longitude in decimal degrees notation, without the degree
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* symbol. e.g.: -122.341100.
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* @type string $country The ISO 3166-1 alpha-2 country code. e.g.: BR
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* }
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*/
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public function __construct( $user_id, $user_location = false ) {
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$this->user_id = absint( $user_id );
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$this->user_location = $user_location;
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}
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/**
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* Gets data about events near a particular location.
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*
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* Cached events will be immediately returned if the `user_location` property
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* is set for the current user, and cached events exist for that location.
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*
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* Otherwise, this method sends a request to the w.org Events API with location
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* data. The API will send back a recognized location based on the data, along
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* with nearby events.
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*
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* The browser's request for events is proxied with this method, rather
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* than having the browser make the request directly to api.wordpress.org,
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* because it allows results to be cached server-side and shared with other
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* users and sites in the network. This makes the process more efficient,
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* since increasing the number of visits that get cached data means users
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* don't have to wait as often; if the user's browser made the request
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* directly, it would also need to make a second request to WP in order to
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* pass the data for caching. Having WP make the request also introduces
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* the opportunity to anonymize the IP before sending it to w.org, which
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* mitigates possible privacy concerns.
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*
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* @since 4.8.0
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* @since 5.5.2 Response no longer contains formatted date field. They're added
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* in `wp.communityEvents.populateDynamicEventFields()` now.
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*
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* @param string $location_search Optional. City name to help determine the location.
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* e.g., "Seattle". Default empty string.
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* @param string $timezone Optional. Timezone to help determine the location.
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* Default empty string.
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* @return array|WP_Error A WP_Error on failure; an array with location and events on
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* success.
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*/
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public function get_events( $location_search = '', $timezone = '' ) {
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$cached_events = $this->get_cached_events();
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if ( ! $location_search && $cached_events ) {
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return $cached_events;
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}
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// Include an unmodified $wp_version.
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require ABSPATH . WPINC . '/version.php';
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$api_url = 'http://api.wordpress.org/events/1.0/';
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$request_args = $this->get_request_args( $location_search, $timezone );
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$request_args['user-agent'] = 'WordPress/' . $wp_version . '; ' . home_url( '/' );
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if ( wp_http_supports( array( 'ssl' ) ) ) {
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$api_url = set_url_scheme( $api_url, 'https' );
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}
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$response = wp_remote_get( $api_url, $request_args );
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$response_code = wp_remote_retrieve_response_code( $response );
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$response_body = json_decode( wp_remote_retrieve_body( $response ), true );
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$response_error = null;
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if ( is_wp_error( $response ) ) {
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$response_error = $response;
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} elseif ( 200 !== $response_code ) {
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$response_error = new WP_Error(
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'api-error',
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/* translators: %d: Numeric HTTP status code, e.g. 400, 403, 500, 504, etc. */
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sprintf( __( 'Invalid API response code (%d).' ), $response_code )
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);
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} elseif ( ! isset( $response_body['location'], $response_body['events'] ) ) {
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$response_error = new WP_Error(
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'api-invalid-response',
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isset( $response_body['error'] ) ? $response_body['error'] : __( 'Unknown API error.' )
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);
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}
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if ( is_wp_error( $response_error ) ) {
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return $response_error;
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} else {
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$expiration = false;
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if ( isset( $response_body['ttl'] ) ) {
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$expiration = $response_body['ttl'];
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unset( $response_body['ttl'] );
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}
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/*
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* The IP in the response is usually the same as the one that was sent
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* in the request, but in some cases it is different. In those cases,
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* it's important to reset it back to the IP from the request.
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*
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* For example, if the IP sent in the request is private (e.g., 192.168.1.100),
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* then the API will ignore that and use the corresponding public IP instead,
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* and the public IP will get returned. If the public IP were saved, though,
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* then get_cached_events() would always return `false`, because the transient
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* would be generated based on the public IP when saving the cache, but generated
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* based on the private IP when retrieving the cache.
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*/
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if ( ! empty( $response_body['location']['ip'] ) ) {
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$response_body['location']['ip'] = $request_args['body']['ip'];
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}
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/*
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* The API doesn't return a description for latitude/longitude requests,
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* but the description is already saved in the user location, so that
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* one can be used instead.
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*/
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if ( $this->coordinates_match( $request_args['body'], $response_body['location'] ) && empty( $response_body['location']['description'] ) ) {
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$response_body['location']['description'] = $this->user_location['description'];
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}
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/*
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* Store the raw response, because events will expire before the cache does.
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* The response will need to be processed every page load.
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*/
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$this->cache_events( $response_body, $expiration );
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$response_body['events'] = $this->trim_events( $response_body['events'] );
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return $response_body;
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}
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}
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/**
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* Builds an array of args to use in an HTTP request to the w.org Events API.
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*
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* @since 4.8.0
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*
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* @param string $search Optional. City search string. Default empty string.
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* @param string $timezone Optional. Timezone string. Default empty string.
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* @return array The request args.
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*/
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protected function get_request_args( $search = '', $timezone = '' ) {
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$args = array(
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'number' => 5, // Get more than three in case some get trimmed out.
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'ip' => self::get_unsafe_client_ip(),
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);
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/*
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* Include the minimal set of necessary arguments, in order to increase the
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* chances of a cache-hit on the API side.
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*/
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if ( empty( $search ) && isset( $this->user_location['latitude'], $this->user_location['longitude'] ) ) {
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$args['latitude'] = $this->user_location['latitude'];
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$args['longitude'] = $this->user_location['longitude'];
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} else {
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$args['locale'] = get_user_locale( $this->user_id );
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if ( $timezone ) {
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$args['timezone'] = $timezone;
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}
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if ( $search ) {
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$args['location'] = $search;
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}
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}
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// Wrap the args in an array compatible with the second parameter of `wp_remote_get()`.
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return array(
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'body' => $args,
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);
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}
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/**
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* Determines the user's actual IP address and attempts to partially
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* anonymize an IP address by converting it to a network ID.
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*
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* Geolocating the network ID usually returns a similar location as the
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* actual IP, but provides some privacy for the user.
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*
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* $_SERVER['REMOTE_ADDR'] cannot be used in all cases, such as when the user
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* is making their request through a proxy, or when the web server is behind
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* a proxy. In those cases, $_SERVER['REMOTE_ADDR'] is set to the proxy address rather
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* than the user's actual address.
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*
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* Modified from https://stackoverflow.com/a/2031935/450127, MIT license.
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* Modified from https://github.com/geertw/php-ip-anonymizer, MIT license.
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*
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* SECURITY WARNING: This function is _NOT_ intended to be used in
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* circumstances where the authenticity of the IP address matters. This does
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* _NOT_ guarantee that the returned address is valid or accurate, and it can
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* be easily spoofed.
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*
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* @since 4.8.0
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*
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* @return string|false The anonymized address on success; the given address
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* or false on failure.
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*/
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public static function get_unsafe_client_ip() {
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$client_ip = false;
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// In order of preference, with the best ones for this purpose first.
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$address_headers = array(
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'HTTP_CLIENT_IP',
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'HTTP_X_FORWARDED_FOR',
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'HTTP_X_FORWARDED',
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'HTTP_X_CLUSTER_CLIENT_IP',
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'HTTP_FORWARDED_FOR',
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'HTTP_FORWARDED',
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'REMOTE_ADDR',
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);
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foreach ( $address_headers as $header ) {
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if ( array_key_exists( $header, $_SERVER ) ) {
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/*
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* HTTP_X_FORWARDED_FOR can contain a chain of comma-separated
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* addresses. The first one is the original client. It can't be
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* trusted for authenticity, but we don't need to for this purpose.
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*/
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$address_chain = explode( ',', $_SERVER[ $header ] );
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$client_ip = trim( $address_chain[0] );
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break;
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}
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}
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if ( ! $client_ip ) {
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return false;
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}
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$anon_ip = wp_privacy_anonymize_ip( $client_ip, true );
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if ( '0.0.0.0' === $anon_ip || '::' === $anon_ip ) {
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return false;
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}
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return $anon_ip;
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}
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/**
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* Test if two pairs of latitude/longitude coordinates match each other.
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*
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* @since 4.8.0
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*
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* @param array $a The first pair, with indexes 'latitude' and 'longitude'.
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* @param array $b The second pair, with indexes 'latitude' and 'longitude'.
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* @return bool True if they match, false if they don't.
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*/
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protected function coordinates_match( $a, $b ) {
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if ( ! isset( $a['latitude'], $a['longitude'], $b['latitude'], $b['longitude'] ) ) {
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return false;
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}
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return $a['latitude'] === $b['latitude'] && $a['longitude'] === $b['longitude'];
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}
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|||
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/**
|
|||
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* Generates a transient key based on user location.
|
|||
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*
|
|||
|
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* This could be reduced to a one-liner in the calling functions, but it's
|
|||
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* intentionally a separate function because it's called from multiple
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* functions, and having it abstracted keeps the logic consistent and DRY,
|
|||
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* which is less prone to errors.
|
|||
|
|
*
|
|||
|
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* @since 4.8.0
|
|||
|
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*
|
|||
|
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* @param array $location Should contain 'latitude' and 'longitude' indexes.
|
|||
|
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* @return string|false Transient key on success, false on failure.
|
|||
|
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*/
|
|||
|
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protected function get_events_transient_key( $location ) {
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$key = false;
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|
|||
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if ( isset( $location['ip'] ) ) {
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$key = 'community-events-' . md5( $location['ip'] );
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} elseif ( isset( $location['latitude'], $location['longitude'] ) ) {
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$key = 'community-events-' . md5( $location['latitude'] . $location['longitude'] );
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}
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return $key;
|
|||
|
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}
|
|||
|
|
|
|||
|
|
/**
|
|||
|
|
* Caches an array of events data from the Events API.
|
|||
|
|
*
|
|||
|
|
* @since 4.8.0
|
|||
|
|
*
|
|||
|
|
* @param array $events Response body from the API request.
|
|||
|
|
* @param int|false $expiration Optional. Amount of time to cache the events. Defaults to false.
|
|||
|
|
* @return bool true if events were cached; false if not.
|
|||
|
|
*/
|
|||
|
|
protected function cache_events( $events, $expiration = false ) {
|
|||
|
|
$set = false;
|
|||
|
|
$transient_key = $this->get_events_transient_key( $events['location'] );
|
|||
|
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$cache_expiration = $expiration ? absint( $expiration ) : HOUR_IN_SECONDS * 12;
|
|||
|
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|
|||
|
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if ( $transient_key ) {
|
|||
|
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$set = set_site_transient( $transient_key, $events, $cache_expiration );
|
|||
|
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}
|
|||
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|
|||
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return $set;
|
|||
|
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}
|
|||
|
|
|
|||
|
|
/**
|
|||
|
|
* Gets cached events.
|
|||
|
|
*
|
|||
|
|
* @since 4.8.0
|
|||
|
|
* @since 5.5.2 Response no longer contains formatted date field. They're added
|
|||
|
|
* in `wp.communityEvents.populateDynamicEventFields()` now.
|
|||
|
|
*
|
|||
|
|
* @return array|false An array containing `location` and `events` items
|
|||
|
|
* on success, false on failure.
|
|||
|
|
*/
|
|||
|
|
public function get_cached_events() {
|
|||
|
|
$transient_key = $this->get_events_transient_key( $this->user_location );
|
|||
|
|
if ( ! $transient_key ) {
|
|||
|
|
return false;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
$cached_response = get_site_transient( $transient_key );
|
|||
|
|
if ( isset( $cached_response['events'] ) ) {
|
|||
|
|
$cached_response['events'] = $this->trim_events( $cached_response['events'] );
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
return $cached_response;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
/**
|
|||
|
|
* Adds formatted date and time items for each event in an API response.
|
|||
|
|
*
|
|||
|
|
* This has to be called after the data is pulled from the cache, because
|
|||
|
|
* the cached events are shared by all users. If it was called before storing
|
|||
|
|
* the cache, then all users would see the events in the localized data/time
|
|||
|
|
* of the user who triggered the cache refresh, rather than their own.
|
|||
|
|
*
|
|||
|
|
* @since 4.8.0
|
|||
|
|
* @deprecated 5.6.0 No longer used in core.
|
|||
|
|
*
|
|||
|
|
* @param array $response_body The response which contains the events.
|
|||
|
|
* @return array The response with dates and times formatted.
|
|||
|
|
*/
|
|||
|
|
protected function format_event_data_time( $response_body ) {
|
|||
|
|
_deprecated_function(
|
|||
|
|
__METHOD__,
|
|||
|
|
'5.5.2',
|
|||
|
|
'This is no longer used by core, and only kept for backward compatibility.'
|
|||
|
|
);
|
|||
|
|
|
|||
|
|
if ( isset( $response_body['events'] ) ) {
|
|||
|
|
foreach ( $response_body['events'] as $key => $event ) {
|
|||
|
|
$timestamp = strtotime( $event['date'] );
|
|||
|
|
|
|||
|
|
/*
|
|||
|
|
* The `date_format` option is not used because it's important
|
|||
|
|
* in this context to keep the day of the week in the formatted date,
|
|||
|
|
* so that users can tell at a glance if the event is on a day they
|
|||
|
|
* are available, without having to open the link.
|
|||
|
|
*/
|
|||
|
|
/* translators: Date format for upcoming events on the dashboard. Include the day of the week. See https://www.php.net/manual/datetime.format.php */
|
|||
|
|
$formatted_date = date_i18n( __( 'l, M j, Y' ), $timestamp );
|
|||
|
|
$formatted_time = date_i18n( get_option( 'time_format' ), $timestamp );
|
|||
|
|
|
|||
|
|
if ( isset( $event['end_date'] ) ) {
|
|||
|
|
$end_timestamp = strtotime( $event['end_date'] );
|
|||
|
|
$formatted_end_date = date_i18n( __( 'l, M j, Y' ), $end_timestamp );
|
|||
|
|
|
|||
|
|
if ( 'meetup' !== $event['type'] && $formatted_end_date !== $formatted_date ) {
|
|||
|
|
/* translators: Upcoming events month format. See https://www.php.net/manual/datetime.format.php */
|
|||
|
|
$start_month = date_i18n( _x( 'F', 'upcoming events month format' ), $timestamp );
|
|||
|
|
$end_month = date_i18n( _x( 'F', 'upcoming events month format' ), $end_timestamp );
|
|||
|
|
|
|||
|
|
if ( $start_month === $end_month ) {
|
|||
|
|
$formatted_date = sprintf(
|
|||
|
|
/* translators: Date string for upcoming events. 1: Month, 2: Starting day, 3: Ending day, 4: Year. */
|
|||
|
|
__( '%1$s %2$d–%3$d, %4$d' ),
|
|||
|
|
$start_month,
|
|||
|
|
/* translators: Upcoming events day format. See https://www.php.net/manual/datetime.format.php */
|
|||
|
|
date_i18n( _x( 'j', 'upcoming events day format' ), $timestamp ),
|
|||
|
|
date_i18n( _x( 'j', 'upcoming events day format' ), $end_timestamp ),
|
|||
|
|
/* translators: Upcoming events year format. See https://www.php.net/manual/datetime.format.php */
|
|||
|
|
date_i18n( _x( 'Y', 'upcoming events year format' ), $timestamp )
|
|||
|
|
);
|
|||
|
|
} else {
|
|||
|
|
$formatted_date = sprintf(
|
|||
|
|
/* translators: Date string for upcoming events. 1: Starting month, 2: Starting day, 3: Ending month, 4: Ending day, 5: Year. */
|
|||
|
|
__( '%1$s %2$d – %3$s %4$d, %5$d' ),
|
|||
|
|
$start_month,
|
|||
|
|
date_i18n( _x( 'j', 'upcoming events day format' ), $timestamp ),
|
|||
|
|
$end_month,
|
|||
|
|
date_i18n( _x( 'j', 'upcoming events day format' ), $end_timestamp ),
|
|||
|
|
date_i18n( _x( 'Y', 'upcoming events year format' ), $timestamp )
|
|||
|
|
);
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
$formatted_date = wp_maybe_decline_date( $formatted_date, 'F j, Y' );
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
$response_body['events'][ $key ]['formatted_date'] = $formatted_date;
|
|||
|
|
$response_body['events'][ $key ]['formatted_time'] = $formatted_time;
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
return $response_body;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
/**
|
|||
|
|
* Prepares the event list for presentation.
|
|||
|
|
*
|
|||
|
|
* Discards expired events, and makes WordCamps "sticky." Attendees need more
|
|||
|
|
* advanced notice about WordCamps than they do for meetups, so camps should
|
|||
|
|
* appear in the list sooner. If a WordCamp is coming up, the API will "stick"
|
|||
|
|
* it in the response, even if it wouldn't otherwise appear. When that happens,
|
|||
|
|
* the event will be at the end of the list, and will need to be moved into a
|
|||
|
|
* higher position, so that it doesn't get trimmed off.
|
|||
|
|
*
|
|||
|
|
* @since 4.8.0
|
|||
|
|
* @since 4.9.7 Stick a WordCamp to the final list.
|
|||
|
|
* @since 5.5.2 Accepts and returns only the events, rather than an entire HTTP response.
|
|||
|
|
* @since 6.0.0 Decode HTML entities from the event title.
|
|||
|
|
*
|
|||
|
|
* @param array $events The events that will be prepared.
|
|||
|
|
* @return array The response body with events trimmed.
|
|||
|
|
*/
|
|||
|
|
protected function trim_events( array $events ) {
|
|||
|
|
$future_events = array();
|
|||
|
|
|
|||
|
|
foreach ( $events as $event ) {
|
|||
|
|
/*
|
|||
|
|
* The API's `date` and `end_date` fields are in the _event's_ local timezone, but UTC is needed so
|
|||
|
|
* it can be converted to the _user's_ local time.
|
|||
|
|
*/
|
|||
|
|
$end_time = (int) $event['end_unix_timestamp'];
|
|||
|
|
|
|||
|
|
if ( time() < $end_time ) {
|
|||
|
|
// Decode HTML entities from the event title.
|
|||
|
|
$event['title'] = html_entity_decode( $event['title'], ENT_QUOTES, 'UTF-8' );
|
|||
|
|
|
|||
|
|
array_push( $future_events, $event );
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
$future_wordcamps = array_filter(
|
|||
|
|
$future_events,
|
|||
|
|
static function( $wordcamp ) {
|
|||
|
|
return 'wordcamp' === $wordcamp['type'];
|
|||
|
|
}
|
|||
|
|
);
|
|||
|
|
|
|||
|
|
$future_wordcamps = array_values( $future_wordcamps ); // Remove gaps in indices.
|
|||
|
|
$trimmed_events = array_slice( $future_events, 0, 3 );
|
|||
|
|
$trimmed_event_types = wp_list_pluck( $trimmed_events, 'type' );
|
|||
|
|
|
|||
|
|
// Make sure the soonest upcoming WordCamp is pinned in the list.
|
|||
|
|
if ( $future_wordcamps && ! in_array( 'wordcamp', $trimmed_event_types, true ) ) {
|
|||
|
|
array_pop( $trimmed_events );
|
|||
|
|
array_push( $trimmed_events, $future_wordcamps[0] );
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
return $trimmed_events;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
/**
|
|||
|
|
* Logs responses to Events API requests.
|
|||
|
|
*
|
|||
|
|
* @since 4.8.0
|
|||
|
|
* @deprecated 4.9.0 Use a plugin instead. See #41217 for an example.
|
|||
|
|
*
|
|||
|
|
* @param string $message A description of what occurred.
|
|||
|
|
* @param array $details Details that provide more context for the
|
|||
|
|
* log entry.
|
|||
|
|
*/
|
|||
|
|
protected function maybe_log_events_response( $message, $details ) {
|
|||
|
|
_deprecated_function( __METHOD__, '4.9.0' );
|
|||
|
|
|
|||
|
|
if ( ! WP_DEBUG_LOG ) {
|
|||
|
|
return;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
error_log(
|
|||
|
|
sprintf(
|
|||
|
|
'%s: %s. Details: %s',
|
|||
|
|
__METHOD__,
|
|||
|
|
trim( $message, '.' ),
|
|||
|
|
wp_json_encode( $details )
|
|||
|
|
)
|
|||
|
|
);
|
|||
|
|
}
|
|||
|
|
}
|