wip

includes/activitypub/handler/class-create.php

@@ -8,6 +8,8 @@
 namespace Event_Bridge_For_ActivityPub\ActivityPub\Handler;
 
 use Activitypub\Collection\Actors;
+use DateTime;
+use DateTimeZone;
 use Event_Bridge_For_ActivityPub\ActivityPub\Collection\Event_Sources;
 use Event_Bridge_For_ActivityPub\Setup;
 
@@ -61,6 +63,10 @@ class Create {
 			return;
 		}
 
+		if ( self::is_time_passed( $activity['object']['startTime'] ) ) {
+			return;
+		}
+
 		$transmogrifier_class = Setup::get_transmogrifier();
 
 		if ( ! $transmogrifier_class ) {
@@ -120,6 +126,23 @@ class Create {
 		return $valid;
 	}
 
+	/**
+	 * Check if a given DateTime is already passed.
+	 *
+	 * @param string $time_string The ActivityPub like time string.
+	 * @return bool
+	 */
+	private static function is_time_passed( $time_string ) {
+		// Create a DateTime object from the ActivityPub time string.
+		$time = new DateTime( $time_string, new DateTimeZone( 'UTC' ) );
+
+		// Get the current time in UTC.
+		$current_time = new DateTime( 'now', new DateTimeZone( 'UTC' ) );
+
+		// Compare the event time with the current time.
+		return $time < $current_time;
+	}
+
 	/**
 	 * Check if an ActivityPub actor is an event source.
 	 *

includes/activitypub/transmogrifier/class-gatherpress.php

@@ -12,8 +12,8 @@
 namespace Event_Bridge_For_ActivityPub\Activitypub\Transmogrifier;
 
 use Activitypub\Activity\Extended_Object\Event;
-use Activitypub\Activity\Extended_Object\Place;
 use DateTime;
+use Exception;
 
 use function Activitypub\object_to_uri;
 use function Activitypub\sanitize_url;
@@ -56,6 +56,51 @@ class GatherPress {
 		$this->activitypub_event = $activitypub_event;
 	}
 
+	/**
+	 * Validate a time string if it is according to the ActivityPub specification.
+	 *
+	 * @param string $time_string The time string.
+	 * @return bool
+	 */
+	public static function is_valid_activitypub_time_string( $time_string ) {
+		// Try to create a DateTime object from the input string.
+		try {
+			$date = new DateTime( $time_string );
+		} catch ( Exception $e ) {
+			// If parsing fails, it's not valid.
+			return false;
+		}
+
+		// Ensure the timezone is correctly formatted (e.g., 'Z' or a valid offset).
+		$timezone           = $date->getTimezone();
+		$formatted_timezone = $timezone->getName();
+
+		// Return true only if the time string includes 'Z' or a valid timezone offset.
+		$valid = 'Z' === $formatted_timezone || preg_match( '/^[+-]\d{2}:\d{2}$/ ', $formatted_timezone );
+		return $valid;
+	}
+
+	/**
+	 * Get a list of Post IDs of events that have ended.
+	 *
+	 * @param int $cache_retention_period Additional time buffer in seconds.
+	 * @return int[]
+	 */
+	public static function get_past_events( $cache_retention_period = 0 ) {
+		global $wpdb;
+
+		$time_limit = gmdate( 'Y-m-d H:i:s', time() - $cache_retention_period );
+
+		$results = $wpdb->get_col(
+			$wpdb->prepare(
+				"SELECT post_id FROM {$wpdb->prefix}gatherpress_events WHERE datetime_end < %s",
+				$time_limit
+			)
+		);
+
+		return $results;
+	}
+
 	/**
 	 * Get post.
 	 */
@@ -232,6 +277,25 @@ class GatherPress {
 		return true;
 	}
 
+	/**
+	 * Returns the URL of the online event link.
+	 *
+	 * @return ?string
+	 */
+	protected function get_online_event_link_from_attachments() {
+		$attachments = $this->activitypub_event->get_attachment();
+
+		if ( ! is_array( $attachments ) || empty( $attachments ) ) {
+			return;
+		}
+
+		foreach ( $attachments as $attachment ) {
+			if ( array_key_exists( 'type', $attachment ) && 'Link' === $attachment['type'] && isset( $attachment['href'] ) ) {
+				return $attachment['href'];
+			}
+		}
+	}
+
 	/**
 	 * Add venue.
 	 *
@@ -248,6 +312,17 @@ class GatherPress {
 			return;
 		}
 
+		// Fallback for Gancio instances.
+		if ( 'online' === $location['name'] ) {
+			$online_event_link = $this->get_online_event_link_from_attachments();
+			if ( ! $online_event_link ) {
+				return;
+			}
+			update_post_meta( $post_id, 'gatherpress_online_event_link', sanitize_url( $online_event_link ) );
+			wp_set_object_terms( $post_id, 'online-event', '_gatherpress_venue', false );
+			return;
+		}
+
 		$venue_instance = \GatherPress\Core\Venue::get_instance();
 		$venue_name     = sanitize_title( $location['name'] );
 		$venue_slug     = $venue_instance->get_venue_term_slug( $venue_name );
@@ -276,14 +351,14 @@ class GatherPress {
 
 		update_post_meta( $venue_id, 'gatherpress_venue_information', $venue_json );
 
-		wp_set_object_terms( $post_id, $venue_slug, '_gatherpress_venue', true ); // 'true' appends to existing terms.
+		wp_set_object_terms( $post_id, $venue_slug, '_gatherpress_venue', false ); // 'true' appends to existing terms.
 	}
 
 	/**
 	 * Save the ActivityPub event object as GatherPress Event.
 	 */
 	public function create() {
-		// Insert new GatherPress Event post.
+		// Insert new GatherPress event post.
 		$post_id = wp_insert_post(
 			array(
 				'post_title'   => sanitize_text_field( $this->activitypub_event->get_name() ),
@@ -292,6 +367,10 @@ class GatherPress {
 				'post_excerpt' => wp_kses_post( $this->activitypub_event->get_summary() ),
 				'post_status'  => 'publish',
 				'guid'         => sanitize_url( $this->activitypub_event->get_id() ),
+				'meta_input'   => array(
+					'event_bridge_for_activitypub_is_cached' => 'GatherPress',
+					'activitypub_content_visibility' => ACTIVITYPUB_CONTENT_VISIBILITY_LOCAL,
+				),
 			)
 		);
 
@@ -299,7 +378,7 @@ class GatherPress {
 			return;
 		}
 
-		// Insert the Dates.
+		// Insert the dates.
 		$event      = new GatherPress_Event( $post_id );
 		$start_time = $this->activitypub_event->get_start_time();
 		$end_time   = $this->activitypub_event->get_end_time();
@@ -313,18 +392,17 @@ class GatherPress {
 			'datetime_end'   => $end_time,
 			'timezone'       => $this->activitypub_event->get_timezone(),
 		);
+		// Sanitization of the params is done in the save_datetimes function just in time.
+		$event->save_datetimes( $params );
 
 		// Insert featured image.
 		$image = $this->get_featured_image();
 		self::set_featured_image_with_alt( $post_id, $image['url'], $image['alt'] );
 
-		// Add hashtags as terms.
+		// Add hashtags.
 		$this->add_tags_to_post( $post_id );
 
 		$this->add_venue( $post_id );
-
-		// Sanitization of the params is done in the save_datetimes function just in time.
-		$event->save_datetimes( $params );
 	}
 
 	/**
@@ -346,6 +424,10 @@ class GatherPress {
 				'post_excerpt' => wp_kses_post( $this->activitypub_event->get_summary() ),
 				'post_status'  => 'publish',
 				'guid'         => sanitize_url( $this->activitypub_event->get_id() ),
+				'meta_input'   => array(
+					'event_bridge_for_activitypub_is_cached' => 'GatherPress',
+					'activitypub_content_visibility' => ACTIVITYPUB_CONTENT_VISIBILITY_LOCAL,
+				),
 			)
 		);
 

includes/admin/class-user-interface.php

@@ -12,8 +12,6 @@ namespace Event_Bridge_For_ActivityPub\Admin;
 // Exit if accessed directly.
 defined( 'ABSPATH' ) || exit; // @codeCoverageIgnore
 
-use Event_Bridge_For_ActivityPub\Integrations\Event_Plugin;
-
 /**
  * Class responsible for Event Plugin related admin notices.
  *

includes/class-event-sources.php

@@ -12,6 +12,9 @@ namespace Event_Bridge_For_ActivityPub;
 use Activitypub\Activity\Extended_Object\Event;
 use Activitypub\Collection\Actors;
 use Event_Bridge_For_ActivityPub\ActivityPub\Collection\Event_Sources as Event_Sources_Collection;
+use Event_Bridge_For_ActivityPub\Activitypub\Transformer\GatherPress as TransformerGatherPress;
+use Event_Bridge_For_ActivityPub\Activitypub\Transmogrifier\GatherPress;
+use Event_Bridge_For_ActivityPub\Integrations\GatherPress as IntegrationsGatherPress;
 
 use function Activitypub\get_remote_metadata_by_actor;
 use function Activitypub\is_activitypub_request;
@@ -139,4 +142,21 @@ class Event_Sources {
 
 		return $template;
 	}
+
+	/**
+	 * Delete old cached events that took place in the past.
+	 */
+	public static function clear_cache() {
+		$cache_retention_period = get_option( 'event_bridge_for_activitypub_event_source_cache_retention', WEEK_IN_SECONDS );
+
+		$past_event_ids = GatherPress::get_past_events( $cache_retention_period );
+
+		foreach ( $past_event_ids as $post_id ) {
+			if ( has_post_thumbnail( $post_id ) ) {
+				$attachment_id = get_post_thumbnail_id( $post_id );
+				wp_delete_attachment( $attachment_id, true );
+			}
+			wp_delete_post( $post_id, true );
+		}
+	}
 }

includes/class-settings.php

@@ -105,6 +105,18 @@ class Settings {
 			)
 		);
 
+		\register_setting(
+			'event-bridge-for-activitypub',
+			'event_bridge_for_activitypub_event_source_cache_retention',
+			array(
+				'type'              => 'int',
+				'show_in_rest'      => true,
+				'description'       => \__( 'The cache retention period for external event sources.', 'event-bridge-for-activitypub' ),
+				'default'           => WEEK_IN_SECONDS,
+				'sanitize_callback' => 'absint',
+			)
+		);
+
 		\register_setting(
 			'event-bridge-for-activitypub',
 			'event_bridge_for_activitypub_plugin_used_for_event_source_feature',

includes/class-setup.php

@@ -242,12 +242,36 @@ class Setup {
 		if ( get_option( 'event_bridge_for_activitypub_event_sources_active' ) ) {
 			add_action( 'init', array( Event_Sources_Collection::class, 'init' ) );
 			add_action( 'activitypub_register_handlers', array( Handler::class, 'register_handlers' ) );
-			// add_action( 'admin_init', array( User_Interface::class, 'init' ) );
+			add_action( 'admin_init', array( User_Interface::class, 'init' ) );
 			add_filter( 'allowed_redirect_hosts', array( Event_Sources_Collection::class, 'add_event_sources_hosts_to_allowed_redirect_hosts' ) );
 			add_filter( 'activitypub_is_post_disabled', array( Event_Sources::class, 'is_cached_external_post' ), 10, 2 );
+			if ( ! wp_next_scheduled( 'event_bridge_for_activitypub_event_sources_clear_cache' ) ) {
+				wp_schedule_event( time(), 'daily', 'event_bridge_for_activitypub_event_sources_clear_cache' );
+			}
+
+			add_action( 'event_bridge_for_activitypub_event_sources_clear_cache', array( Event_Sources::class, 'clear_cache' ) );
+			add_filter(
+				'gatherpress_force_online_event_link',
+				function ( $force_online_event_link ) {
+					// Get the current post object.
+					$post = get_post();
+
+					// Check if we are in a valid context and the post type is 'gatherpress'.
+					if ( $post && 'gatherpress_event' === $post->post_type ) {
+						// Add your custom logic here to decide whether to force the link.
+						// For example, force it only if a specific meta field exists.
+						if ( get_post_meta( $post->ID, 'event_bridge_for_activitypub_is_cached', true ) ) {
+							return true; // Force the online event link.
+						}
+					}
+
+					return $force_online_event_link; // Default behavior.
+				},
+				10,
+				1
+			);
 		}
 		\add_filter( 'template_include', array( \Event_Bridge_For_ActivityPub\Event_Sources::class, 'redirect_activitypub_requests_for_cached_external_events' ), 100 );
-
 		add_filter( 'activitypub_transformer', array( $this, 'register_activitypub_event_transformer' ), 10, 3 );
 	}
 

templates/settings.php

@@ -31,15 +31,16 @@ if ( ! isset( $args ) || ! array_key_exists( 'event_terms', $args ) ) {
 if ( ! current_user_can( 'manage_options' ) ) {
 	return;
 }
-
+\get_option( 'event_bridge_for_activitypub_event_sources_active', false );
 if ( ! isset( $args ) || ! array_key_exists( 'supports_event_sources', $args ) ) {
 	return;
 }
 
 $event_plugins_supporting_event_sources = $args['supports_event_sources'];
 
-$selected_plugin      = \get_option( 'event_bridge_for_activitypub_plugin_used_for_event_source_feature', '' );
-$event_sources_active = \get_option( 'event_bridge_for_activitypub_event_sources_active', false );
+$selected_plugin        = \get_option( 'event_bridge_for_activitypub_plugin_used_for_event_source_feature', '' );
+$event_sources_active   = \get_option( 'event_bridge_for_activitypub_event_sources_active', false );
+$cache_retention_period = \get_option( 'event_bridge_for_activitypub_event_source_cache_retention', DAY_IN_SECONDS );
 
 $event_terms = $args['event_terms'];
 
@@ -145,6 +146,33 @@ $current_category_mapping        = \get_option( 'event_bridge_for_activitypub_ev
 							<p id="event-sources-used-plugin-description"><?php esc_html_e( 'In case you have multiple event plugins installed you might choose which event plugin is utilized.', 'event-bridge-for-activitypub' ); ?></p>
 						</td>
 					<tr>
+					<tr>
+						<th scope="row">
+							<label for="event_bridge_for_activitypub_event_source_cache"><?php \esc_html_e( 'Retention Period for External Events', 'event-bridge-for-activitypub' ); ?></label>
+						</th>
+						<td>
+							<select
+								name="event_bridge_for_activitypub_event_source_cache_retention"
+								id="event_bridge_for_activitypub_event_source_cache_retention"
+								value="0"
+								aria-describedby="event_bridge_for_activitypub_event-sources-cache-clear-time-frame"
+							>
+							<?php
+							$choices = array(
+								0                => __( 'Immediately', 'event-bridge-for-activitypub' ),
+								DAY_IN_SECONDS   => __( 'One Day', 'event-bridge-for-activitypub' ),
+								WEEK_IN_SECONDS  => __( 'One Week', 'event-bridge-for-activitypub' ),
+								MONTH_IN_SECONDS => __( 'One Month', 'event-bridge-for-activitypub' ),
+								YEAR_IN_SECONDS  => __( 'One Year', 'event-bridge-for-activitypub' ),
+							);
+							foreach ( $choices as $time => $string ) {
+								echo '<option value="' . esc_attr( $time ) . '" ' . selected( $cache_retention_period, $time, true ) . '>' . esc_attr( $string ) . '</option>';
+							}
+							?>
+							</select>
+							<p id="event_bridge_for_activitypub_event-sources-cache-clear-time-frame"><?php esc_html_e( 'External events from your event sources will be automatically removed from your site after the selected time period has passed since the event ended. Choose a time frame that works best for your needs.', 'event-bridge-for-activitypub' ); ?></p>
+						</td>
+					<tr>
 					<?php
 				}
 				?>