Merge branch 'MDL-76710-master' of https://github.com/call-learning/moodle

mod/bigbluebuttonbn/adminmanageplugins.php

@@ -0,0 +1,43 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Allows the admin to manage extension plugins
+ *
+ * @copyright 2023 onwards, Blindside Networks Inc
+ * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ * @author    Laurent David (laurent@call-learning.fr)
+ */
+
+use mod_bigbluebuttonbn\local\plugins\admin_plugin_manager;
+
+require_once(__DIR__ . '/../../config.php');
+global $PAGE;
+require_login();
+$action = optional_param('action', null, PARAM_PLUGIN);
+$plugin = optional_param('plugin', null, PARAM_PLUGIN);
+
+if (!empty($plugin)) {
+    require_sesskey();
+}
+
+// Create the class for this controller.
+$pluginmanager = new admin_plugin_manager();
+
+$PAGE->set_context(context_system::instance());
+
+// Execute the controller.
+$pluginmanager->execute($action, $plugin);

mod/bigbluebuttonbn/classes/extension.php

@@ -0,0 +1,130 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+namespace mod_bigbluebuttonbn;
+
+use mod_bigbluebuttonbn\local\extension\action_url_addons;
+use mod_bigbluebuttonbn\local\extension\mod_instance_helper;
+use stdClass;
+use core_plugin_manager;
+
+/**
+ * Generic subplugin management helper
+ *
+ * @package   mod_bigbluebuttonbn
+ * @copyright 2023 onwards, Blindside Networks Inc
+ * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ * @author    Laurent David (laurent@call-learning.fr)
+ */
+class extension {
+    /**
+     * Plugin name for extension
+     */
+    const BBB_EXTENSION_PLUGIN_NAME = 'bbbext';
+
+    /**
+     * Invoke a subplugin hook that will return additional parameters
+     *
+     * @param string $action
+     * @param array $data
+     * @param array $metadata
+     * @return array associative array with the additional data and metadata (indexed by 'data' and
+     * 'metadata' keys).
+     */
+    public static function action_url_addons(string $action = '', array $data = [], array $metadata = []): array {
+        $allmutationclass = self::get_instances_implementing(action_url_addons::class);
+        $additionaldata = [];
+        $additionalmetadata = [];
+        foreach ($allmutationclass as $mutationclass) {
+            // Here we intentionally just pass data and metadata and not the result as we
+            // do not want subplugin to assume that another subplugin is doing a modification.
+            ['data' => $newdata, 'metadata' => $newmetadata] = $mutationclass->execute($action, $data, $metadata);
+            $additionaldata = array_merge($additionaldata, $newdata ?? []);
+            $additionalmetadata = array_merge($additionalmetadata, $newmetadata ?? []);
+        }
+        return [
+            'data' => $additionaldata,
+            'metadata' => $additionalmetadata
+        ];
+    }
+
+    /**
+     * Add instance processing
+     *
+     * @param stdClass $data data to persist
+     * @return void
+     */
+    public static function add_instance(stdClass $data): void {
+        $formmanagersclasses = self::get_instances_implementing(mod_instance_helper::class);
+        foreach ($formmanagersclasses as $fmclass) {
+            $fmclass->add_instance($data);
+        }
+    }
+
+    /**
+     * Update instance processing
+     *
+     * @param stdClass $data data to persist
+     * @return void
+     */
+    public static function update_instance(stdClass $data): void {
+        $formmanagersclasses = self::get_instances_implementing(mod_instance_helper::class);
+        foreach ($formmanagersclasses as $fmclass) {
+            $fmclass->update_instance($data);
+        }
+    }
+
+    /**
+     * Delete instance processing
+     *
+     * @param int $id instance id
+     * @return void
+     */
+    public static function delete_instance(int $id): void {
+        $formmanagersclasses = self::get_instances_implementing(mod_instance_helper::class);
+        foreach ($formmanagersclasses as $fmclass) {
+            $fmclass->delete_instance($id);
+        }
+    }
+
+    /**
+     * Get new instance of classes that are named on the base of this classname and implementing this class
+     *
+     * @param string $classname
+     * @return array
+     */
+    protected static function get_instances_implementing(string $classname): array {
+        // Get the class basename without Reflection API.
+        $classnamecomponents = explode("\\", $classname);
+        $classbasename = end($classnamecomponents);
+        $allsubs = core_plugin_manager::instance()->get_plugins_of_type(self::BBB_EXTENSION_PLUGIN_NAME);
+        $extensionclasses = [];
+        foreach ($allsubs as $sub) {
+            if (!$sub->is_enabled()) {
+                continue;
+            }
+            $targetclassname = "\\bbbext_{$sub->name}\\bigbluebuttonbn\\$classbasename";
+            if (!class_exists($targetclassname)) {
+                continue;
+            }
+            if (!is_subclass_of($targetclassname, $classname)) {
+                debugging("The class $targetclassname should extend $classname in the subplugin {$sub->name}. Ignoring.");
+                continue;
+            }
+            $extensionclasses[] = new $targetclassname();
+        }
+        return $extensionclasses;
+    }
+}

mod/bigbluebuttonbn/classes/local/extension/action_url_addons.php

@@ -0,0 +1,43 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+namespace mod_bigbluebuttonbn\local\extension;
+
+/**
+ * A single action class to mutate the action URL.
+ *
+ * @package   mod_bigbluebuttonbn
+ * @copyright 2023 onwards, Blindside Networks Inc
+ * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ * @author    Laurent David (laurent@call-learning.fr)
+ */
+class action_url_addons {
+    /**
+     * Mutate the action URL.
+     *
+     * By design:
+     *  1. we should only add parameters
+     *  2. we cannot count on the order the subplugins are called
+     *
+     * @param string $action
+     * @param array $data
+     * @param array $metadata
+     * @return array associative array with the additional data and metadata (indexed by 'data' and
+     * 'metadata' keys).
+     */
+    public function execute(string $action = '', array $data = [], array $metadata = []): array {
+        return ['data' => [], 'metadata' => []];
+    }
+}

mod/bigbluebuttonbn/classes/local/extension/mod_instance_helper.php

@@ -0,0 +1,52 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+namespace mod_bigbluebuttonbn\local\extension;
+use stdClass;
+
+/**
+ * Class defining a way to deal with instance save/update/delete in extension
+ *
+ * @package   mod_bigbluebuttonbn
+ * @copyright 2023 onwards, Blindside Networks Inc
+ * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ * @author    Laurent David (laurent@call-learning.fr)
+ */
+class mod_instance_helper {
+    /**
+     * Runs any processes that must run before a bigbluebuttonbn insert/update.
+     *
+     * @param stdClass $bigbluebuttonbn BigBlueButtonBN form data
+     */
+    public function add_instance(stdClass $bigbluebuttonbn) {
+        // Nothing for now.
+    }
+    /**
+     * Runs any processes that must be run after a bigbluebuttonbn insert/update.
+     *
+     * @param stdClass $bigbluebuttonbn BigBlueButtonBN form data
+     */
+    public function update_instance(stdClass $bigbluebuttonbn): void {
+        // Nothing for now.
+    }
+
+    /**
+     * Runs any processes that must be run after a bigbluebuttonbn delete.
+     *
+     * @param int $cmid
+     */
+    public function delete_instance(int $cmid): void {
+    }
+}

mod/bigbluebuttonbn/classes/local/plugins/admin_page_manage_extensions.php

@@ -0,0 +1,81 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+namespace mod_bigbluebuttonbn\local\plugins;
+
+defined('MOODLE_INTERNAL') || die();
+global $CFG;
+require_once($CFG->libdir . '/adminlib.php');
+
+use admin_externalpage;
+use core_component;
+use core_text;
+use mod_bigbluebuttonbn\extension;
+use moodle_url;
+
+/**
+ * Admin external page that displays a list of the installed extension plugins.
+ *
+ * @package   mod_bigbluebuttonbn
+ * @copyright 2023 onwards, Blindside Networks Inc
+ * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ * @author    Laurent David (laurent@call-learning.fr)
+ */
+class admin_page_manage_extensions extends admin_externalpage {
+    /**
+     * Global URL for page.
+     */
+    const ADMIN_PAGE_URL = '/mod/bigbluebuttonbn/adminmanageplugins.php';
+
+    /**
+     * The constructor - calls parent constructor
+     *
+     */
+    public function __construct() {
+        $url = new moodle_url(self::ADMIN_PAGE_URL);
+        $managepagename = 'manage' . extension::BBB_EXTENSION_PLUGIN_NAME . 'plugins';
+        parent::__construct(
+            $managepagename,
+            get_string($managepagename, 'mod_bigbluebuttonbn'),
+            $url
+        );
+    }
+
+    /**
+     * Search plugins for the specified string
+     *
+     * @param string $query The string to search for
+     * @return array
+     */
+    public function search($query): array {
+        if ($result = parent::search($query)) {
+            return $result;
+        }
+        foreach (core_component::get_plugin_list(extension::BBB_EXTENSION_PLUGIN_NAME ) as $name => $notused) {
+            $pluginname = core_text::strtolower(
+                get_string('pluginname', extension::BBB_EXTENSION_PLUGIN_NAME . '_' . $name)
+            );
+            if (str_contains($pluginname, $query) !== false) {
+                $result = (object)[
+                    'page' => $this,
+                    'settings' => [],
+                ];
+                return [$this->name => $result];
+            }
+        }
+        return [];
+    }
+}

mod/bigbluebuttonbn/classes/local/plugins/admin_plugin_manager.php

@@ -0,0 +1,327 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+namespace mod_bigbluebuttonbn\local\plugins;
+
+use cache_helper;
+use context_system;
+use core_component;
+use core_plugin_manager;
+use flexible_table;
+use html_writer;
+use mod_bigbluebuttonbn\extension;
+use moodle_url;
+use pix_icon;
+
+/**
+ * Class that handles the display and configuration of the list of extension plugins.
+ *
+ * This is directly taken from the mod_assign code. We might need to have a global API there for this.
+ *
+ * @package   mod_bigbluebuttonbn
+ * @copyright 2023 onwards, Blindside Networks Inc
+ * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ * @author    Laurent David (laurent@call-learning.fr)
+ */
+class admin_plugin_manager {
+    /** @var object the url of the manage submission plugin page */
+    private $pageurl;
+
+    /**
+     * Constructor for this assignment plugin manager
+     *
+     */
+    public function __construct() {
+        $this->pageurl = new moodle_url(admin_page_manage_extensions::ADMIN_PAGE_URL);
+    }
+
+    /**
+     * This is the entry point for this controller class.
+     *
+     * @param string|null $action - The action to perform
+     * @param string|null $plugin - Optional name of a plugin type to perform the action on
+     * @return void
+     */
+    public function execute(?string $action = null, ?string $plugin = null): void {
+        if (empty($action) || empty($plugin)) {
+            $action = 'view';
+        }
+        $this->check_permissions();
+
+        $actionname = "plugins_$action";
+        if (method_exists($this, $actionname)) {
+            $nextaction = $this->$actionname($plugin);
+            if ($nextaction) {
+                $this->execute($nextaction, $plugin);
+            }
+        }
+    }
+
+    /**
+     * Check this user has permission to edit the list of installed plugins
+     *
+     * @return void
+     */
+    private function check_permissions(): void {
+        require_login();
+        $systemcontext = context_system::instance();
+        require_capability('moodle/site:config', $systemcontext);
+    }
+
+    /**
+     * Write the HTML for the submission plugins table.
+     *
+     * @return void
+     */
+    private function plugins_view(): void {
+        global $OUTPUT, $CFG;
+        require_once($CFG->libdir . '/tablelib.php');
+        $this->print_header();
+        $table = new flexible_table(extension::BBB_EXTENSION_PLUGIN_NAME . 'pluginsadminttable');
+        $table->define_baseurl($this->pageurl);
+        $table->define_columns([
+            'pluginname',
+            'version',
+            'hideshow',
+            'order',
+            'settings',
+            'uninstall'
+        ]);
+        $table->define_headers([
+            get_string('subplugintype_bbbext', 'mod_bigbluebuttonbn'),
+            get_string('version'), get_string('hide') . '/' . get_string('show'),
+            get_string('order'),
+            get_string('settings'),
+            get_string('uninstallplugin', 'core_admin')
+        ]);
+        $table->set_attribute('id', extension::BBB_EXTENSION_PLUGIN_NAME . 'plugins');
+        $table->set_attribute('class', 'admintable generaltable');
+        $table->setup();
+
+        $plugins = $this->get_sorted_plugins_list();
+        $instances = core_plugin_manager::instance()->get_plugins_of_type(extension::BBB_EXTENSION_PLUGIN_NAME);
+
+        foreach ($plugins as $idx => $plugin) {
+            $componentname = extension::BBB_EXTENSION_PLUGIN_NAME . '_' . $plugin;
+            $typebasedir = "";
+            if (in_array($plugin, array_keys($instances))) {
+                $typebasedir = ($instances[$plugin])->typerootdir;
+            }
+            $row = [];
+            $class = '';
+            $pluginversion = get_config($componentname, 'version');
+            $row[] = get_string('pluginname', $componentname);
+            $row[] = $pluginversion;
+            $visible = !get_config($componentname, 'disabled');
+
+            if ($visible) {
+                $row[] = $this->format_icon_link('hide', $plugin, 't/hide', get_string('disable'));
+            } else {
+                $row[] = $this->format_icon_link('show', $plugin, 't/show', get_string('enable'));
+                $class = 'dimmed_text';
+            }
+
+            $movelinks = '';
+            if (!$idx == 0) {
+                $movelinks .= $this->format_icon_link('moveup', $plugin, 't/up', get_string('up')) . ' ';
+            } else {
+                $movelinks .= $OUTPUT->spacer(['width' => 16]);
+            }
+            if ($idx != count($plugins) - 1) {
+                $movelinks .= $this->format_icon_link('movedown', $plugin, 't/down', get_string('down')) . ' ';
+            }
+            $row[] = $movelinks;
+
+            $exists = file_exists($typebasedir . '/' . $plugin . '/settings.php');
+            // We do not display settings for plugin who have not yet been installed (so have no version yet).
+            if (!empty($pluginversion) && $exists) {
+                $row[] = html_writer::link(
+                    new moodle_url('/admin/settings.php', ['section' => $componentname]),
+                    get_string('settings')
+                );
+            } else {
+                $row[] = '&nbsp;';
+            }
+            $url = core_plugin_manager::instance()->get_uninstall_url(
+                $componentname,
+                'manage'
+            );
+            if ($url) {
+                $row[] = html_writer::link($url, get_string('uninstallplugin', 'core_admin'));
+            } else {
+                $row[] = '&nbsp;';
+            }
+
+            $table->add_data($row, $class);
+        }
+
+        $table->finish_output();
+        $this->print_footer();
+    }
+
+    /**
+     * Write the page header
+     *
+     * @return void
+     */
+    private function print_header(): void {
+        global $OUTPUT;
+        $pageidentifier = 'manage' . extension::BBB_EXTENSION_PLUGIN_NAME . 'plugins';
+        admin_externalpage_setup($pageidentifier);
+        echo $OUTPUT->header();
+        echo $OUTPUT->heading(get_string($pageidentifier, 'mod_bigbluebuttonbn'));
+    }
+
+    /**
+     * Return a list of plugins sorted by the order defined in the admin interface
+     *
+     * @return array The list of plugins
+     */
+    public function get_sorted_plugins_list(): array {
+        $names = core_component::get_plugin_list(extension::BBB_EXTENSION_PLUGIN_NAME);
+
+        $result = [];
+
+        foreach ($names as $name => $path) {
+            $idx = get_config(extension::BBB_EXTENSION_PLUGIN_NAME . '_' . $name, 'sortorder');
+            if (!$idx) {
+                $idx = 0;
+            }
+            while (array_key_exists($idx, $result)) {
+                $idx += 1;
+            }
+            $result[$idx] = $name;
+        }
+        ksort($result);
+
+        return $result;
+    }
+
+    /**
+     * Util function for writing an action icon link
+     *
+     * @param string $action URL parameter to include in the link
+     * @param string $plugin URL parameter to include in the link
+     * @param string $icon The key to the icon to use (e.g. 't/up')
+     * @param string $alt The string description of the link used as the title and alt text
+     * @return string The icon/link
+     */
+    private function format_icon_link(string $action, string $plugin, string $icon, string $alt): string {
+        global $OUTPUT;
+        return $OUTPUT->action_icon(
+                new moodle_url(
+                    $this->pageurl,
+                    ['action' => $action, 'plugin' => $plugin, 'sesskey' => sesskey()]
+                ),
+                new pix_icon($icon, $alt, 'moodle', ['title' => $alt]),
+                null,
+                ['title' => $alt]
+            );
+    }
+
+    /**
+     * Write the page footer
+     *
+     * @return void
+     */
+    private function print_footer(): void {
+        global $OUTPUT;
+        echo $OUTPUT->footer();
+    }
+
+    /**
+     * Hide this plugin.
+     *
+     * @param string $plugin - The plugin to hide
+     * @return string The next page to display
+     */
+    private function plugins_hide(string $plugin): string {
+        $class = \core_plugin_manager::resolve_plugininfo_class(extension::BBB_EXTENSION_PLUGIN_NAME);
+        $class::enable_plugin($plugin, false);
+        cache_helper::purge_by_event('mod_bigbluebuttonbn/pluginenabledisabled');
+        return 'view';
+    }
+
+    /**
+     * Show this plugin.
+     *
+     * @param string $plugin - The plugin to show
+     * @return string The next page to display
+     */
+    private function plugins_show(string $plugin): string {
+        $class = \core_plugin_manager::resolve_plugininfo_class(extension::BBB_EXTENSION_PLUGIN_NAME);
+        $class::enable_plugin($plugin, true);
+        cache_helper::purge_by_event('mod_bigbluebuttonbn/pluginenabledisabled');
+        return 'view';
+    }
+
+    /**
+     * Move this plugin up
+     *
+     * We need this function so we can call directly (without the dir parameter)
+     * @param string $plugintomove - The plugin to move
+     * @return string The next page to display
+     */
+    private function plugins_moveup(string $plugintomove): string {
+        return $this->move_plugin($plugintomove, 'up');
+    }
+
+    /**
+     * Move this plugin down
+     *
+     * We need this function so we can call directly (without the dir parameter)
+     * @param string $plugintomove - The plugin to move
+     * @return string The next page to display
+     */
+    private function plugins_movedown(string $plugintomove): string {
+        return $this->move_plugin($plugintomove, 'down');
+    }
+
+    /**
+     * Change the order of this plugin.
+     *
+     * @param string $plugintomove - The plugin to move
+     * @param string $dir - up or down
+     * @return string The next page to display
+     */
+    private function move_plugin(string $plugintomove, string $dir): string {
+        $plugins = $this->get_sorted_plugins_list();
+        $plugins = array_values($plugins);
+        $currentindex = array_search($plugintomove, $plugins);
+        if ($currentindex === false) {
+            return 'view';
+        }
+        // Make the switch.
+        if ($dir === 'up') {
+            if ($currentindex > 0) {
+                $tempplugin = $plugins[$currentindex - 1];
+                $plugins[$currentindex - 1] = $plugins[$currentindex];
+                $plugins[$currentindex] = $tempplugin;
+            }
+        } else if ($dir === 'down') {
+            if ($currentindex < (count($plugins) - 1)) {
+                $tempplugin = $plugins[$currentindex + 1];
+                $plugins[$currentindex + 1] = $plugins[$currentindex];
+                $plugins[$currentindex] = $tempplugin;
+            }
+        }
+
+        // Save the new normal order.
+        foreach ($plugins as $key => $plugin) {
+            set_config('sortorder', $key, extension::BBB_EXTENSION_PLUGIN_NAME . '_' . $plugin);
+        }
+        return 'view';
+    }
+}

mod/bigbluebuttonbn/classes/local/proxy/proxy_base.php

@@ -16,6 +16,7 @@
 
 namespace mod_bigbluebuttonbn\local\proxy;
 
+use mod_bigbluebuttonbn\extension;
 use mod_bigbluebuttonbn\local\config;
 use mod_bigbluebuttonbn\local\exceptions\bigbluebutton_exception;
 use mod_bigbluebuttonbn\local\exceptions\server_not_available_exception;
@@ -55,10 +56,13 @@ abstract class proxy_base {
      */
     protected static function action_url(string $action = '', array $data = [], array $metadata = []): string {
         $baseurl = self::sanitized_url() . $action . '?';
+        ['data' => $additionaldata, 'metadata' => $additionalmetadata] = extension::action_url_addons($action, $data, $metadata);
+        $data = array_merge($data, $additionaldata ?? []);
+        $metadata = array_merge($metadata, $additionalmetadata ?? []);
+
         $metadata = array_combine(array_map(function($k) {
             return 'meta_' . $k;
         }, array_keys($metadata)), $metadata);
-
         $params = http_build_query($data + $metadata, '', '&');
         $checksum = self::get_checksum($action, $params);
         return $baseurl . $params . '&checksum=' . $checksum;

mod/bigbluebuttonbn/classes/plugininfo/bbbext.php

@@ -0,0 +1,149 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+namespace mod_bigbluebuttonbn\plugininfo;
+
+use core\plugininfo\base;
+use mod_bigbluebuttonbn\extension;
+
+/**
+ * Subplugin extension info class.
+ *
+ * @package   mod_bigbluebuttonbn
+ * @copyright 2022 onwards, Blindside Networks Inc
+ * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ * @author    Laurent David (laurent@call-learning.fr)
+ */
+class bbbext extends base {
+    /**
+     * Check if BigBlueButton plugin is enabled
+     * @return bool
+     */
+    private static function is_bbb_enabled(): bool {
+        $enabledplugins = \core\plugininfo\mod::get_enabled_plugins();
+        return isset($enabledplugins['bigbluebuttonbn']);
+    }
+
+    /**
+     * Get a list of enabled plugins
+     *
+     * @return array
+     * @throws \dml_exception
+     */
+    public static function get_enabled_plugins(): array {
+        // If the mod_bigbluebuttonbn is not enabled, then all subplugin are disabled.
+        if (!self::is_bbb_enabled()) {
+            return [];
+        }
+        // Get all available plugins.
+        $plugins = \core_plugin_manager::instance()->get_installed_plugins(extension::BBB_EXTENSION_PLUGIN_NAME);
+        if (!$plugins) {
+            return [];
+        }
+
+        // Check they are enabled using get_config (which is cached and hopefully fast).
+        $enabled = [];
+        foreach ($plugins as $plugin => $version) {
+            $disabled = get_config(extension::BBB_EXTENSION_PLUGIN_NAME . '_' . $plugin, 'disabled');
+            if (empty($disabled)) {
+                $enabled[$plugin] = $plugin;
+            }
+        }
+
+        return $enabled;
+    }
+
+    /**
+     * Enable the plugin
+     *
+     * @param string $pluginname
+     * @param int $enabled
+     * @return bool
+     * @throws \dml_exception
+     */
+    public static function enable_plugin(string $pluginname, int $enabled): bool {
+        $haschanged = false;
+        // If the mod_bigbluebuttonbn is not enabled, then all subplugin are disabled.
+        if (!self::is_bbb_enabled()) {
+            return false;
+        }
+        $plugin = extension::BBB_EXTENSION_PLUGIN_NAME. '_' . $pluginname;
+        $oldvalue = get_config($plugin, 'disabled');
+        $disabled = !$enabled;
+        // Only set value if there is no config setting or if the value is different from the previous one.
+        if ($oldvalue == false && $disabled) {
+            set_config('disabled', $disabled, $plugin);
+            $haschanged = true;
+        } else if ($oldvalue != false && !$disabled) {
+            unset_config('disabled', $plugin);
+            $haschanged = true;
+        }
+
+        if ($haschanged) {
+            add_to_config_log('disabled', $oldvalue, $disabled, $plugin);
+            \core_plugin_manager::reset_caches();
+        }
+
+        return $haschanged;
+    }
+
+    /**
+     * Loads plugin settings to the settings tree
+     *
+     * This function usually includes settings.php file in plugins folder.
+     * Alternatively it can create a link to some settings page (instance of admin_externalpage)
+     *
+     * @param \part_of_admin_tree $adminroot
+     * @param string $parentnodename
+     * @param bool $hassiteconfig whether the current user has moodle/site:config capability
+     */
+    public function load_settings(\part_of_admin_tree $adminroot, $parentnodename, $hassiteconfig) {
+        // If the mod_bigbluebuttonbn is not enabled, then all subplugin are disabled.
+        if (!self::is_bbb_enabled()) {
+            return;
+        }
+        $ADMIN = $adminroot;
+        $plugininfo = $this;
+
+        if (!$this->is_installed_and_upgraded()) {
+            return;
+        }
+
+        if (!$hassiteconfig || !file_exists($this->full_path('settings.php'))) {
+            return;
+        }
+
+        $section = $this->get_settings_section_name();
+
+        $settings = new \admin_settingpage($section, $this->displayname, 'moodle/site:config',
+            $this->is_enabled() === false);
+
+        if ($adminroot->fulltree) {
+            $shortsubtype = substr($this->type, strlen(extension::BBB_EXTENSION_PLUGIN_NAME));
+            include($this->full_path('settings.php'));
+        }
+
+        $adminroot->add($this->type . 'plugins', $settings);
+    }
+
+    /**
+     * Get settings section name
+     *
+     * @return string
+     */
+    public function get_settings_section_name() {
+        return $this->type . '_' . $this->name;
+    }
+}

mod/bigbluebuttonbn/classes/settings.php

@@ -28,9 +28,11 @@ use admin_setting_configtextarea;
 use admin_setting_heading;
 use admin_settingpage;
 use cache_helper;
+use core_plugin_manager;
 use lang_string;
 use mod_bigbluebuttonbn\local\config;
 use mod_bigbluebuttonbn\local\helpers\roles;
+use mod_bigbluebuttonbn\local\plugins\admin_page_manage_extensions;
 use mod_bigbluebuttonbn\local\proxy\bigbluebutton_proxy;
 
 /**
@@ -46,6 +48,9 @@ class settings {
     /** @var admin_category shared value */
     private $admin;
 
+    /** @var bool whether the current user has moodle/site:config capability  */
+    private $hassiteconfig;
+
     /** @var bool Module is enabled */
     private $moduleenabled;
 
@@ -64,11 +69,13 @@ class settings {
      * @param admin_category $admin
      * @param \core\plugininfo\mod $module
      * @param string $categoryname for the plugin setting (main setting page)
+     * @param bool $hassiteconfig whether the current user has moodle/site:config capability
      */
-    public function __construct(admin_category $admin, \core\plugininfo\mod $module, string $categoryname) {
+    public function __construct(admin_category $admin, \core\plugininfo\mod $module, string $categoryname, bool $hassiteconfig) {
         $this->moduleenabled = $module->is_enabled() === true;
         $this->admin = $admin;
         $this->section = $categoryname;
+        $this->hassiteconfig = $hassiteconfig;
 
         $modbigbluebuttobnfolder = new admin_category(
             $this->parent,
@@ -108,6 +115,14 @@ class settings {
         $this->add_extended_settings();
         // Renders settings for experimental features.
         $this->add_experimental_settings();
+
+        // Add all subplugin settings if any.
+        $this->admin->add($this->parent, new admin_category('bbbextplugins',
+            new lang_string('subplugintype_bbbext', 'mod_bigbluebuttonbn'), !$this->moduleenabled));
+        $this->admin->add($this->parent, new admin_page_manage_extensions());
+        foreach (core_plugin_manager::instance()->get_plugins_of_type(extension::BBB_EXTENSION_PLUGIN_NAME) as $plugin) {
+            $plugin->load_settings($this->admin, extension::BBB_EXTENSION_PLUGIN_NAME, $this->hassiteconfig);
+        }
     }
 
     /**

mod/bigbluebuttonbn/classes/test/subplugins_test_helper_trait.php

@@ -0,0 +1,79 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Subplugin test helper trait
+ *
+ * @package   mod_bigbluebuttonbn
+ * @copyright 2023 - present, Blindside Networks Inc
+ * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ * @author    Laurent David (laurent@call-learning.fr)
+ */
+
+namespace mod_bigbluebuttonbn\test;
+
+use core_component;
+use mod_bigbluebuttonbn\extension;
+use ReflectionClass;
+
+trait subplugins_test_helper_trait {
+    /**
+     * Setup a fake extension plugin
+     *
+     * This is intended to behave in most case like a real subplugina and will
+     * allow most functionalities to be tested.
+     *
+     * @param string $pluginname plugin name
+     * @return void
+     */
+    protected function setup_fake_plugin(string $pluginname): void {
+        global $CFG;
+        require_once("$CFG->libdir/upgradelib.php");
+        $bbbextpath = "{$CFG->dirroot}/mod/bigbluebuttonbn/tests/fixtures/extension";
+        // This is similar to accesslib_test::setup_fake_plugin.
+        $mockedcomponent = new ReflectionClass(core_component::class);
+
+        $mockedplugins = $mockedcomponent->getProperty('plugins');
+        $mockedplugins->setAccessible(true);
+        $plugins = $mockedplugins->getValue();
+        $plugins[extension::BBB_EXTENSION_PLUGIN_NAME] = [$pluginname => $bbbextpath . "/$pluginname"];
+        $mockedplugins->setValue($plugins);
+
+        $mockedplugintypes = $mockedcomponent->getProperty('plugintypes');
+        $mockedplugintypes->setAccessible(true);
+        $pluginstypes = $mockedplugintypes->getValue();
+        $pluginstypes[extension::BBB_EXTENSION_PLUGIN_NAME] = $bbbextpath;
+        $mockedplugintypes->setValue($pluginstypes);
+
+        $fillclassmap = $mockedcomponent->getMethod('fill_classmap_cache');
+        $fillclassmap->setAccessible(true);
+        $fillclassmap->invoke(null);
+
+        $fillfilemap = $mockedcomponent->getMethod('fill_filemap_cache');
+        $fillfilemap->setAccessible(true);
+        $fillfilemap->invoke(null);
+
+        // Make sure the plugin is installed.
+        ob_start();
+        upgrade_noncore(false);
+        upgrade_finished();
+        ob_end_clean();
+        \core_plugin_manager::reset_caches();
+        $this->resetDebugging(); // We might have debugging messages here that we need to get rid of.
+        // End of the component loader mock.
+    }
+
+}

mod/bigbluebuttonbn/db/subplugins.json

@@ -0,0 +1,5 @@
+{
+  "plugintypes": {
+    "bbbext": "mod\/bigbluebuttonbn\/extension"
+  }
+}

mod/bigbluebuttonbn/extension/.gitignore

@@ -0,0 +1 @@
+*/

mod/bigbluebuttonbn/extension/README.md

@@ -0,0 +1,10 @@
+## BigBlueButtonBN extension subplugins
+
+The plugins are made to extend existing BigBlueButtonBN behaviour. For now, we have two extensions points using as base classes that should be implemented.
+* action_url_addons: inherit this class and redefine the execute method so add new parameter when we send an action url to the BigBlueButton server.
+* mod_instance_helper : inherit this class so all methods will be called when we either add/delete/or update a module instance.
+  The extension classes should be placed in your plugin with exactly the same name but in a different namespace for example
+* **\\bbbext_<YOUREXTENSION>\\bigbluebuttonbn\\mod_instance_helper** to extend hooks from the mod_instance_helper class.
+
+
+Some examples are provided in the tests/fixtures/simple folder.

mod/bigbluebuttonbn/lang/en/bigbluebuttonbn.php

@@ -364,6 +364,7 @@ $string['index_heading_users'] = 'Users';
 $string['index_heading_viewer'] = 'Viewers';
 $string['index_heading'] = 'BigBlueButton rooms';
 $string['instanceprofilewithoutrecordings'] = 'This instance profile cannot display recordings';
+$string['managebbbextplugins'] = 'Manage BigBlueButton extension plugins';
 $string['mod_form_block_general'] = 'General';
 $string['mod_form_block_guestaccess'] = 'Guest access';
 $string['mod_form_block_room'] = 'Room settings';
@@ -660,3 +661,6 @@ $string['userlimitreached'] = 'The number of users allowed in a session has been
 $string['waitformoderator'] = 'Waiting for a moderator to join.';
 
 $string['recordingurlnotfound'] = 'The recording URL is invalid.';
+
+$string['subplugintype_bbbext'] = 'BigBlueButton activity extension';
+$string['subplugintype_bbbext_plural'] = 'BigBlueButton activity extensions';

mod/bigbluebuttonbn/lib.php

@@ -28,6 +28,7 @@ defined('MOODLE_INTERNAL') || die;
 use core_calendar\action_factory;
 use core_calendar\local\event\entities\action_interface;
 use mod_bigbluebuttonbn\completion\custom_completion;
+use mod_bigbluebuttonbn\extension;
 use mod_bigbluebuttonbn\instance;
 use mod_bigbluebuttonbn\local\bigbluebutton;
 use mod_bigbluebuttonbn\local\exceptions\server_not_available_exception;
@@ -107,6 +108,9 @@ function bigbluebuttonbn_add_instance($bigbluebuttonbn) {
     logger::log_instance_created($bigbluebuttonbn);
     // Complete the process.
     mod_helper::process_post_save($bigbluebuttonbn);
+
+    // Call any active subplugin so to signal a new creation.
+    extension::add_instance($bigbluebuttonbn);
     return $bigbluebuttonbn->id;
 }
 
@@ -142,6 +146,8 @@ function bigbluebuttonbn_update_instance($bigbluebuttonbn) {
 
     // Complete the process.
     mod_helper::process_post_save($bigbluebuttonbn);
+    // Call any active subplugin so to signal update.
+    extension::update_instance($bigbluebuttonbn);
     return true;
 }
 
@@ -194,6 +200,9 @@ function bigbluebuttonbn_delete_instance($id) {
 
     $result = true;
 
+    // Call any active subplugin so to signal deletion.
+    extension::delete_instance($id);
+
     // Delete the instance.
     if (!$DB->delete_records('bigbluebuttonbn', ['id' => $id])) {
         $result = false;

mod/bigbluebuttonbn/settings.php

@@ -26,7 +26,7 @@
 
 defined('MOODLE_INTERNAL') || die;
 
-$bbbsettings = new mod_bigbluebuttonbn\settings($ADMIN, $module, $section);
+$bbbsettings = new mod_bigbluebuttonbn\settings($ADMIN, $module, $section, $hassiteconfig);
 $bbbsettings->add_all_settings();
 
 $settings = null;

mod/bigbluebuttonbn/tests/fixtures/extension/simple/classes/bigbluebuttonbn/action_url_addons.php

@@ -0,0 +1,43 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+namespace bbbext_simple\bigbluebuttonbn;
+
+/**
+ * A single action class to mutate the action URL.
+ *
+ * @package   mod_bigbluebuttonbn
+ * @copyright 2023 onwards, Blindside Networks Inc
+ * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ * @author    Laurent David (laurent@call-learning.fr)
+ */
+class action_url_addons extends \mod_bigbluebuttonbn\local\extension\action_url_addons {
+    /**
+     * Sample mutate the action URL.
+     *
+     *
+     * @param string $action
+     * @param array $data
+     * @param array $metadata
+     * @return array associative array with the additional data and metadata (indexed by 'data' and
+     * 'metadata' keys)
+     */
+    public function execute(string $action = '', array $data = [], array $metadata = []): array {
+        return [
+            'data' => $action == 'create' ? [] : ['a', 'b'],
+            'metadata' => in_array('Test', $metadata) ? ['c', 'd'] : []
+        ];
+    }
+}

mod/bigbluebuttonbn/tests/fixtures/extension/simple/classes/bigbluebuttonbn/mod_instance_helper.php

@@ -0,0 +1,67 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+namespace bbbext_simple\bigbluebuttonbn;
+
+use stdClass;
+
+/**
+ * Class defining a way to deal with instance save/update/delete in extension
+ *
+ * @package   mod_bigbluebuttonbn
+ * @copyright 2023 onwards, Blindside Networks Inc
+ * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ * @author    Laurent David (laurent@call-learning.fr)
+ */
+class mod_instance_helper extends \mod_bigbluebuttonbn\local\extension\mod_instance_helper {
+    /**
+     * Runs any processes that must run before a bigbluebuttonbn insert/update.
+     *
+     * @param stdClass $bigbluebuttonbn BigBlueButtonBN form data
+     **/
+    public function add_instance(stdClass $bigbluebuttonbn) {
+        global $DB;
+        $DB->insert_record('bbbext_simple', (object) [
+            'bigbluebuttonbnid' => $bigbluebuttonbn->id,
+            'newfield' => 2
+        ]);
+    }
+
+    /**
+     * Runs any processes that must be run after a bigbluebuttonbn insert/update.
+     *
+     * @param stdClass $bigbluebuttonbn BigBlueButtonBN form data
+     **/
+    public function update_instance(stdClass $bigbluebuttonbn): void {
+        global $DB;
+        $record = $DB->get_record('bbbext_simple', [
+            'bigbluebuttonbnid' => $bigbluebuttonbn->id,
+        ]);
+        $record->newfield = $bigbluebuttonbn->newfield;
+        $DB->update_record('bbbext_simple', $record);
+    }
+
+    /**
+     * Runs any processes that must be run after a bigbluebuttonbn delete.
+     *
+     * @param int $id
+     */
+    public function delete_instance(int $id): void {
+        global $DB;
+        $DB->delete_records('bbbext_simple', [
+            'bigbluebuttonbnid' => $id,
+        ]);
+    }
+}

mod/bigbluebuttonbn/tests/fixtures/extension/simple/db/install.xml

@@ -0,0 +1,19 @@
+<?xml version="1.0" encoding="UTF-8" ?>
+<XMLDB PATH="mod/bigbluebuttonbn/tests/fixtures/extension/simple/db" VERSION="20230210" COMMENT="XMLDB file for Moodle mod/bigbluebuttonbn/extension/simple"
+       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+       xsi:noNamespaceSchemaLocation="../../../../../../../lib/xmldb/xmldb.xsd"
+>
+    <TABLES>
+        <TABLE NAME="bbbext_simple" COMMENT="Default comment for bbbext_simple, please edit me">
+            <FIELDS>
+                <FIELD NAME="id" TYPE="int" LENGTH="10" NOTNULL="true" SEQUENCE="true"/>
+                <FIELD NAME="bigbluebuttonbnid" TYPE="int" LENGTH="10" NOTNULL="false" SEQUENCE="false"/>
+                <FIELD NAME="newfield" TYPE="int" LENGTH="2" NOTNULL="false" SEQUENCE="false"/>
+            </FIELDS>
+            <KEYS>
+                <KEY NAME="primary" TYPE="primary" FIELDS="id"/>
+                <KEY NAME="fk_bigbluebuttonbnid" TYPE="foreign-unique" FIELDS="bigbluebuttonbnid" REFTABLE="bigbluebuttonbn" REFFIELDS="id"/>
+            </KEYS>
+        </TABLE>
+    </TABLES>
+</XMLDB>

mod/bigbluebuttonbn/tests/fixtures/extension/simple/lang/en/bbbext_simple.php

@@ -0,0 +1,27 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+/**
+ * Language File.
+ *
+ * @package   mod_bigbluebuttonbn
+ * @copyright 2023 onwards, Blindside Networks Inc
+ * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ * @author    Laurent David (laurent@call-learning.fr)
+ */
+
+defined('MOODLE_INTERNAL') || die();
+$string['config_extension'] = 'Sample config extension setting';
+$string['pluginname'] = 'Simple BigBlueButtonPlugin';

mod/bigbluebuttonbn/tests/fixtures/extension/simple/settings.php

@@ -0,0 +1,34 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * This file defines the admin settings for this plugin
+ *
+ * @package   mod_bigbluebuttonbn
+ * @copyright 2023 onwards, Blindside Networks Inc
+ * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ * @author    Laurent David  (laurent [at] call-learning [dt] fr)
+ */
+
+defined('MOODLE_INTERNAL') || die;
+
+$settings->add(new admin_setting_configtext(
+    'bbbext_simple/config_extension',
+    new lang_string('config_extension', 'bbbext_simple'),
+    new lang_string('config_extension', 'bbbext_simple'),
+    1024,
+    PARAM_TEXT)
+);

mod/bigbluebuttonbn/tests/fixtures/extension/simple/version.php

@@ -0,0 +1,29 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * This file contains the version information for the sample bigbluebuttonbn subplugin
+ *
+ * @package   mod_bigbluebuttonbn
+ * @copyright 2023 onwards, Blindside Networks Inc
+ * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ * @author    Laurent David  (laurent [at] call-learning [dt] fr)
+ */
+defined('MOODLE_INTERNAL') || die();
+
+$plugin->version   = 2023020800;
+$plugin->requires  = 2023020300;
+$plugin->component = 'bbbext_simple';

mod/bigbluebuttonbn/tests/local/extension_test.php

@@ -0,0 +1,190 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+namespace mod_bigbluebuttonbn\local;
+
+use mod_bigbluebuttonbn\extension;
+use mod_bigbluebuttonbn\local\extension\mod_instance_helper;
+use mod_bigbluebuttonbn\test\subplugins_test_helper_trait;
+use mod_bigbluebuttonbn\test\testcase_helper_trait;
+
+/**
+ * Extension helper class test
+ *
+ * @package   mod_bigbluebuttonbn
+ * @copyright 2023 - present, Blindside Networks Inc
+ * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ * @author    Laurent David (laurent@call-learning.fr)
+ * @coversDefaultClass \mod_bigbluebuttonbn\extension
+ */
+class extension_test extends \advanced_testcase {
+    use subplugins_test_helper_trait;
+    use testcase_helper_trait;
+
+    /**
+     * Setup our fake plugin
+     *
+     * @return void
+     */
+    public function setUp(): void {
+        $this->resetAfterTest(true);
+        $this->setup_fake_plugin('simple');
+    }
+
+    /**
+     * Test for the type_text provider.
+     *
+     * @param bool $bbbenabled
+     * @param string $apiclass
+     * @param array $extensionclasses
+     *
+     * @dataProvider classes_implementing_class
+     * @covers       \mod_bigbluebuttonbn\extension::get_instances_implementing
+     */
+    public function test_get_class_implementing(bool $bbbenabled, string $apiclass, array $extensionclasses): void {
+        $this->enable_plugins($bbbenabled);
+        // Make the method public so we can test it.
+        $reflectionextension = new \ReflectionClass(extension::class);
+        $getclassimplementing = $reflectionextension->getMethod('get_instances_implementing');
+        $getclassimplementing->setAccessible(true);
+        $allfoundinstances = $getclassimplementing->invoke(null, $apiclass);
+        $foundclasses = array_map(
+            function($instance) {
+                return get_class($instance);
+            },
+            $allfoundinstances
+        );
+        $this->assertEquals($extensionclasses, $foundclasses);
+    }
+
+    /**
+     * Test the add module callback
+     *
+     * @return void
+     * @covers \mod_bigbluebuttonbn\local\extension\mod_instance_helpe
+     */
+    public function test_mod_instance_helper_add() {
+        global $DB;
+        // Enable plugin.
+        $this->enable_plugins(true);
+
+        $course = $this->getDataGenerator()->create_course();
+        $record = $this->getDataGenerator()->create_module(
+            'bigbluebuttonbn',
+            ['course' => $course->id, 'newfield' => 2]
+        );
+        $this->assertEquals(2, $DB->get_field('bbbext_simple', 'newfield', ['bigbluebuttonbnid' => $record->id]));
+    }
+
+    /**
+     * Test the update module callback
+     *
+     * @return void
+     * @covers \mod_bigbluebuttonbn\local\extension\mod_instance_helpe
+     */
+    public function test_mod_instance_helper_update() {
+        global $DB;
+        $this->setAdminUser();
+        // Enable plugin.
+        $this->enable_plugins(true);
+
+        $course = $this->getDataGenerator()->create_course();
+        $record = $this->getDataGenerator()->create_module('bigbluebuttonbn', ['course' => $course->id, 'newfield' => 2]);
+        $cm = get_fast_modinfo($course)->instances['bigbluebuttonbn'][$record->id];
+        [$cm, $context, $moduleinfo, $data] = get_moduleinfo_data($cm, $course);
+        $data->newfield = 3;
+        bigbluebuttonbn_update_instance($data);
+        $this->assertEquals(3, $DB->get_field('bbbext_simple', 'newfield', ['bigbluebuttonbnid' => $record->id]));
+    }
+
+    /**
+     * Test delete module callback
+     *
+     * @return void
+     * @covers \mod_bigbluebuttonbn\local\extension\mod_instance_helpe
+     */
+    public function test_mod_instance_helper_delete() {
+        global $DB;
+        $this->initialise_mock_server();
+        // Enable plugin.
+        $this->enable_plugins(true);
+
+        $course = $this->getDataGenerator()->create_course();
+        $record = $this->getDataGenerator()->create_module('bigbluebuttonbn', ['course' => $course->id, 'newfield' => 2]);
+        $cm = get_fast_modinfo($course)->instances['bigbluebuttonbn'][$record->id];
+        course_delete_module($cm->id, false);
+        $this->assertFalse($DB->get_field('bbbext_simple', 'newfield', ['bigbluebuttonbnid' => $record->id]));
+    }
+
+    /**
+     * Test the action_url_addons with plugin enabled
+     *
+     * @return void
+     * @covers \mod_bigbluebuttonbn\extension::action_url_addons
+     */
+    public function test_action_url_addons() {
+        // Enable plugin.
+        $this->enable_plugins(true);
+        // Set a random var here.
+        $var1 = [];
+        $var2 = ['Test'];
+        ['data' => $additionalvar1, 'metadata' => $additionalvar2] = extension::action_url_addons('create', [], ['Test']);
+        $this->assertEmpty($additionalvar1);
+        $this->assertCount(2, $additionalvar2);
+        ['data' => $additionalvar1, 'metadata' => $additionalvar2] = extension::action_url_addons('delete');
+        $this->assertNotEmpty($additionalvar1);
+        $this->assertEmpty($additionalvar2);
+    }
+
+    /**
+     * Data provider for testing get_class_implementing
+     *
+     * @return array[]
+     */
+    public function classes_implementing_class(): array {
+        return [
+            'mod_instance_helper with plugin disabled' => [
+                'bbbenabled' => false,
+                'apiclass' => mod_instance_helper::class,
+                'result' => []
+            ],
+            'mod_instance_helper with plugin enabled' => [
+                'bbbenabled' => true,
+                'apiclass' => mod_instance_helper::class,
+                'result' => [
+                    'bbbext_simple\\bigbluebuttonbn\\mod_instance_helper'
+                ]
+            ]
+        ];
+    }
+
+    /**
+     * Enable plugins
+     *
+     * @param bool $bbbenabled
+     * @return void
+     */
+    private function enable_plugins(bool $bbbenabled) {
+        // First make sure that either BBB is enabled or not.
+        set_config('bigbluebuttonbn_default_dpa_accepted', $bbbenabled);
+        \core\plugininfo\mod::enable_plugin('bigbluebuttonbn', $bbbenabled ? 1 : 0);
+        $plugin = extension::BBB_EXTENSION_PLUGIN_NAME . '_simple';
+        if ($bbbenabled) {
+            unset_config('disabled', $plugin);
+        } else {
+            set_config('disabled', 'disabled', $plugin);
+        }
+    }
+}

mod/bigbluebuttonbn/version.php

@@ -27,6 +27,6 @@
 defined('MOODLE_INTERNAL') || die;
 
 
-$plugin->version = 2023042400;
+$plugin->version = 2023042800;
 $plugin->requires = 2023041800;
 $plugin->component = 'mod_bigbluebuttonbn';