Add an mu-plugin for tweaking the Stream plugin to meet our needs

mu-plugins/loader.php

@@ -6,3 +6,4 @@
 require_once __DIR__ . '/blocks/global-header-footer/blocks.php';
 require_once __DIR__ . '/global-fonts/index.php';
 require_once __DIR__ . '/skip-to/skip-to.php';
+require_once __DIR__ . '/stream-tweaks/index.php';

mu-plugins/stream-tweaks/class-connector-posts.php

@@ -0,0 +1,22 @@
+<?php
+/**
+ * Connector for Posts
+ *
+ * This is a hotfix for the Stream plugin to enable logging post changes that happen through an API context (i.e.
+ * in the block editor). This change has been merged in the GitHub repo for the Stream plugin, but as of version
+ * 3.8.2 it has not been released to the plugin directory.
+ */
+
+namespace WordPressdotorg\MU_Plugins\Stream_Tweaks;
+
+/**
+ * Class - Connector_Posts
+ */
+class Connector_Posts extends \WP_Stream\Connector_Posts {
+	/**
+	 * Register connector in the WP Frontend
+	 *
+	 * @var bool
+	 */
+	public $register_frontend = true;
+}

mu-plugins/stream-tweaks/index.php

@@ -0,0 +1,34 @@
+<?php
+
+namespace WordPressdotorg\MU_Plugins\Stream_Tweaks;
+
+add_filter( 'wp_stream_connectors', __NAMESPACE__ . '\replace_posts_connector' );
+
+/**
+ * Substitute Stream's posts connector class for our modified version.
+ *
+ * @param array $connector_classes
+ *
+ * @return mixed
+ */
+function replace_posts_connector( $connector_classes ) {
+	if ( ! function_exists( 'wp_stream_get_instance' ) ) {
+		return $connector_classes;
+	}
+
+	require_once __DIR__ . '/class-connector-posts.php';
+
+	$stream_plugin_instance = wp_stream_get_instance();
+	$new_posts_connector = new Connector_Posts( $stream_plugin_instance->log ); // WordPressdotorg namespaced version.
+
+	// Remove the default posts connector class if it has been initialized.
+	if ( isset( $connector_classes[ $new_posts_connector->name ] ) ) {
+		unset( $connector_classes[ $new_posts_connector->name ] );
+	}
+
+	if ( $new_posts_connector->is_dependency_satisfied() ) {
+		$connector_classes[ $new_posts_connector->name ] = $new_posts_connector;
+	}
+
+	return $connector_classes;
+}