updated plugin ActivityPub version 8.3.0

wp-content/plugins/activitypub/includes/class-search.php

@@ -0,0 +1,143 @@
+<?php
+/**
+ * ActivityPub Search Enhancement Class
+ *
+ * @package Activitypub
+ */
+
+namespace Activitypub;
+
+use Activitypub\Collection\Interactions;
+
+/**
+ * ActivityPub Search Enhancement Class
+ *
+ * This class enhances WordPress search functionality to detect URLs in search queries
+ * and attempt to import ActivityPub objects if found, otherwise falls back to classic search.
+ */
+class Search {
+
+	/**
+	 * Initialize the search enhancement.
+	 */
+	public static function init() {
+		\add_filter( 'pre_get_posts', array( self::class, 'enhance_public_search' ) );
+		\add_action( 'load-edit-comments.php', array( self::class, 'enhance_admin_comment_search' ) );
+	}
+
+	/**
+	 * Enhance public search functionality to check for URLs and ActivityPub objects.
+	 *
+	 * @param \WP_Query $query The WP_Query instance.
+	 * @return \WP_Query The modified query.
+	 */
+	public static function enhance_public_search( $query ) {
+		// Check user capabilities.
+		if ( ! current_user_can( 'activitypub' ) ) {
+			return $query;
+		}
+
+		// Only enhance main search queries on frontend.
+		if ( ! $query->is_main_query() || ! $query->is_search() || \is_admin() ) {
+			return $query;
+		}
+
+		$search_term = $query->get( 's' );
+		if ( empty( $search_term ) ) {
+			return $query;
+		}
+
+		// Check if search term is a URL.
+		if ( ! \wp_http_validate_url( $search_term ) ) {
+			return $query;
+		}
+
+		// Try to import ActivityPub object.
+		$imported = self::try_import_activitypub_object( $search_term );
+
+		if ( $imported ) {
+			// Ensure the imported comment is approved/published.
+			\wp_set_comment_status( $imported, 'approve' );
+			$comment_link   = \get_comment_link( $imported );
+			$validated_link = \wp_validate_redirect( $comment_link, \home_url() );
+			if ( $validated_link ) {
+				\wp_safe_redirect( $validated_link );
+				exit;
+			}
+		}
+
+		// Fall back to classic search if import failed or no redirect.
+		return $query;
+	}
+
+	/**
+	 * Handle admin comment search to check for URLs and ActivityPub objects.
+	 * Runs on admin_init to avoid infinite loops.
+	 */
+	public static function enhance_admin_comment_search() {
+		// Check user capabilities.
+		if ( ! current_user_can( 'activitypub' ) ) {
+			return;
+		}
+
+		// phpcs:ignore WordPress.Security.NonceVerification.Recommended
+		$search_term = isset( $_GET['s'] ) ? \sanitize_text_field( \wp_unslash( $_GET['s'] ) ) : '';
+		if ( empty( $search_term ) ) {
+			return;
+		}
+
+		// Check if search term is a URL.
+		if ( ! \wp_http_validate_url( $search_term ) ) {
+			return;
+		}
+
+		// Try to import ActivityPub object.
+		$imported = self::try_import_activitypub_object( $search_term );
+
+		if ( $imported ) {
+			// Ensure the imported comment is approved/published.
+			\wp_set_comment_status( $imported, 'approve' );
+			$comment_link   = \get_comment_link( $imported );
+			$validated_link = \wp_validate_redirect( $comment_link, \home_url() );
+			if ( $validated_link ) {
+				\wp_safe_redirect( $validated_link );
+				exit;
+			}
+		}
+	}
+
+	/**
+	 * Try to import an ActivityPub reply from a URL.
+	 *
+	 * @param string $url The URL to check and import.
+	 *
+	 * @return int|false The imported comment ID or false on failure.
+	 */
+	private static function try_import_activitypub_object( $url ) {
+		// Check if it's already imported.
+		$existing = Comment::url_to_commentid( $url );
+		if ( $existing ) {
+			return $existing;
+		}
+
+		// Try to fetch as ActivityPub object.
+		$object = Http::get_remote_object( $url );
+		if ( \is_wp_error( $object ) ) {
+			return false;
+		}
+
+		// Check if it's a reply (has inReplyTo).
+		if ( empty( $object['inReplyTo'] ) ) {
+			return false;
+		}
+
+		$activity = array(
+			'type'   => 'Create',
+			'actor'  => $object['attributedTo'],
+			'object' => $object,
+		);
+
+		// Import the reply as a comment.
+		return Interactions::add_comment( $activity );
+	}
+}