modified file wp-piwik

wp-content/upgrade-temp-backup/plugins/activitypub/includes/class-mention.php

@@ -0,0 +1,155 @@
+<?php
+/**
+ * Mention class file.
+ *
+ * @package Activitypub
+ */
+
+namespace Activitypub;
+
+use WP_Error;
+
+/**
+ * ActivityPub Mention Class.
+ *
+ * @author Alex Kirk
+ */
+class Mention {
+	/**
+	 * Initialize the class, registering WordPress hooks.
+	 */
+	public static function init() {
+		\add_filter( 'the_content', array( self::class, 'the_content' ), 99, 1 );
+		\add_filter( 'comment_text', array( self::class, 'the_content' ), 10, 1 );
+		\add_filter( 'activitypub_extra_field_content', array( self::class, 'the_content' ), 10, 1 );
+		\add_filter( 'activitypub_extract_mentions', array( self::class, 'extract_mentions' ), 99, 2 );
+		\add_filter( 'activitypub_activity_object_array', array( self::class, 'filter_activity_object' ), 99 );
+	}
+
+	/**
+	 * Filter only the activity object and replace summery it with URLs
+	 * add tag to user.
+	 *
+	 * @param array $object_array Array of activity.
+	 *
+	 * @return array The activity object array.
+	 */
+	public static function filter_activity_object( $object_array ) {
+		if ( ! empty( $object_array['summary'] ) ) {
+			$object_array['summary'] = self::the_content( $object_array['summary'] );
+		}
+
+		if ( ! empty( $object_array['content'] ) ) {
+			$object_array['content'] = self::the_content( $object_array['content'] );
+		}
+
+		return $object_array;
+	}
+
+	/**
+	 * Filter to replace the mentions in the content with links.
+	 *
+	 * @param string $the_content The post content.
+	 *
+	 * @return string The filtered post-content.
+	 */
+	public static function the_content( $the_content ) {
+		return enrich_content_data( $the_content, '/@' . ACTIVITYPUB_USERNAME_REGEXP . '/', array( self::class, 'replace_with_links' ) );
+	}
+
+	/**
+	 * A callback for preg_replace to build the user links.
+	 *
+	 * @param array $result The preg_match results.
+	 *
+	 * @return string The final string.
+	 */
+	public static function replace_with_links( $result ) {
+		$metadata = get_remote_metadata_by_actor( $result[0] );
+
+		if (
+			! empty( $metadata ) &&
+			! is_wp_error( $metadata ) &&
+			( ! empty( $metadata['id'] ) || ! empty( $metadata['url'] ) )
+		) {
+			$username = ltrim( $result[0], '@' );
+			if ( ! empty( $metadata['name'] ) ) {
+				$username = $metadata['name'];
+			}
+			if ( ! empty( $metadata['preferredUsername'] ) ) {
+				$username = $metadata['preferredUsername'];
+			}
+
+			$url = isset( $metadata['url'] ) ? object_to_uri( $metadata['url'] ) : object_to_uri( $metadata['id'] );
+
+			return \sprintf( '<a rel="mention" class="u-url mention" href="%1$s">@%2$s</a>', esc_url( $url ), esc_html( $username ) );
+		}
+
+		return $result[0];
+	}
+
+	/**
+	 * Get the Inboxes for the mentioned Actors.
+	 *
+	 * @param array $mentioned The list of Actors that were mentioned.
+	 *
+	 * @return array The list of Inboxes.
+	 */
+	public static function get_inboxes( $mentioned ) {
+		$inboxes = array();
+
+		foreach ( $mentioned as $actor ) {
+			$inbox = self::get_inbox_by_mentioned_actor( $actor );
+
+			if ( ! is_wp_error( $inbox ) && $inbox ) {
+				$inboxes[] = $inbox;
+			}
+		}
+
+		return $inboxes;
+	}
+
+	/**
+	 * Get the inbox from the Remote-Profile of a mentioned Actor.
+	 *
+	 * @param string $actor The Actor URL.
+	 *
+	 * @return string|WP_Error The Inbox-URL or WP_Error if not found.
+	 */
+	public static function get_inbox_by_mentioned_actor( $actor ) {
+		$metadata = get_remote_metadata_by_actor( $actor );
+
+		if ( \is_wp_error( $metadata ) ) {
+			return $metadata;
+		}
+
+		if ( isset( $metadata['endpoints']['sharedInbox'] ) ) {
+			return $metadata['endpoints']['sharedInbox'];
+		}
+
+		if ( \array_key_exists( 'inbox', $metadata ) ) {
+			return $metadata['inbox'];
+		}
+
+		return new WP_Error( 'activitypub_no_inbox', \__( 'No "Inbox" found', 'activitypub' ), $metadata );
+	}
+
+	/**
+	 * Extract the mentions from the post_content.
+	 *
+	 * @param array  $mentions     The already found mentions.
+	 * @param string $post_content The post content.
+	 *
+	 * @return array The discovered mentions.
+	 */
+	public static function extract_mentions( $mentions, $post_content ) {
+		\preg_match_all( '/@' . ACTIVITYPUB_USERNAME_REGEXP . '/i', $post_content, $matches );
+		foreach ( $matches[0] as $match ) {
+			$link = Webfinger::resolve( $match );
+			if ( ! is_wp_error( $link ) ) {
+				$mentions[ $match ] = $link;
+			}
+		}
+		return \array_unique( $mentions );
+	}
+}