diff options
Diffstat (limited to 'engine/lib/plugins.php')
| -rw-r--r-- | engine/lib/plugins.php | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/engine/lib/plugins.php b/engine/lib/plugins.php index 74bce45fd..d5d3db466 100644 --- a/engine/lib/plugins.php +++ b/engine/lib/plugins.php @@ -1105,6 +1105,49 @@ function plugins_test($hook, $type, $value, $params) { } /** + * Checks on deactivate plugin event if disabling it won't create unmet dependencies and blocks disable in such case. + * + * @param string $event deactivate + * @param string $type plugin + * @param array $params Parameters array containing entry with ELggPlugin instance under 'plugin_entity' key + * @return bool false to block plugin deactivation action + * + * @access private + */ +function _plugins_deactivate_dependency_check($event, $type, $params) { + $plugin_id = $params['plugin_entity']->getManifest()->getPluginID(); + $plugin_name = $params['plugin_entity']->getManifest()->getName(); + + $active_plugins = elgg_get_plugins(); + + $dependents = array(); + foreach ($active_plugins as $plugin) { + $manifest = $plugin->getManifest(); + $requires = $manifest->getRequires(); + + foreach ($requires as $required) { + if ($required['type'] == 'plugin' && $required['name'] == $plugin_id) { + // there are active dependents + $dependents[$manifest->getPluginID()] = $plugin; + } + } + } + + if ($dependents) { + $list = '<ul>'; + // construct error message and prevent disabling + foreach ($dependents as $dependent) { + $list .= '<li>' . $dependent->getManifest()->getName() . '</li>'; + } + $list .= '</ul>'; + + register_error(elgg_echo('ElggPlugin:Dependencies:ActiveDependent', array($plugin_name, $list))); + + return false; + } +} + +/** * Initialize the plugin system * Listens to system init and registers actions * @@ -1115,6 +1158,10 @@ function plugin_init() { run_function_once("plugin_run_once"); elgg_register_plugin_hook_handler('unit_test', 'system', 'plugins_test'); + + // note - plugins are booted by the time this handler is registered + // deactivation due to error may have already occurred + elgg_register_event_handler('deactivate', 'plugin', '_plugins_deactivate_dependency_check'); elgg_register_action("plugins/settings/save", '', 'admin'); elgg_register_action("plugins/usersettings/save"); |