Replace multisite-plugin-manager with custom functionality

composer.json

@@ -66,7 +66,6 @@
     "wpackagist-plugin/issuem":"^2.8.7",
     "wpackagist-plugin/jetpack":"^12.2",
     "wpackagist-plugin/mathml-block":"^1.2.1",
-    "wpackagist-plugin/multisite-plugin-manager":"^3.1.6",
     "wpackagist-plugin/ninja-forms":"^3.6.16",
     "wpackagist-plugin/participants-database":"^2.1.5",
     "wpackagist-plugin/pressforward":"^5.2.9",

core-plugins/humanities-commons/humanities-commons.php

@@ -41,6 +41,7 @@ function hcommons_write_error_log( $error_type, $error_message, $info = null ) {
 require_once ( dirname( __FILE__ ) . '/mailchimp.php' );
 require_once ( dirname( __FILE__ ) . '/class-kc-ptc-command.php' );
 require_once ( dirname( __FILE__ ) . '/class-kc-command.php' );
+require_once ( dirname( __FILE__ ) . '/manage-plugins.php' );
 
 class Humanities_Commons {
 

core-plugins/humanities-commons/manage-plugins.php

@@ -0,0 +1,31 @@
+<?php
+/**
+ * Control which plugins users can activate themselves on KC network sites.
+ */
+
+namespace KC\PTC;
+
+/**
+ * Filter the list of plugins shown in the admin area.
+ *
+ * @param array $plugins An array of plugin data.
+ * @return array Modified array of plugin data.
+ */
+function filter_visible_plugins($plugins) {
+    $allowed_plugins = get_network_option(get_current_network_id(), 'pm_user_control_list', []);
+
+	$filtered_plugins = [];
+	foreach ($plugins as $plugin_path => $plugin) {
+		$plugin_slug = explode('/', $plugin_path)[0];
+		if ( 
+			in_array($plugin_slug, $allowed_plugins) || 
+			in_array($plugin_path, $allowed_plugins) ||
+			( is_plugin_active($plugin_path) && ! is_plugin_active_for_network($plugin_path) )
+		) {
+			$filtered_plugins[] = $plugin;
+		}
+	}
+
+    return $filtered_plugins;
+}
+add_filter('all_plugins', 'KC\PTC\filter_visible_plugins');