328 lines
8.4 KiB
PHP
328 lines
8.4 KiB
PHP
<?php
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namespace ManiaControl\Plugins;
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use ManiaControl\Callbacks\CallbackListener;
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use ManiaControl\ManiaControl;
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use ManiaControl\Manialinks\ManialinkPageAnswerListener;
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/**
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* Class managing Plugins
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*
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* @author steeffeen & kremsy
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*/
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class PluginManager {
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/**
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* Constants
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*/
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const TABLE_PLUGINS = 'mc_plugins';
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/**
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* Private properties
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*/
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private $maniaControl = null;
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private $pluginMenu = null;
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private $activePlugins = array();
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private $pluginClasses = array();
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/**
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* Construct plugin manager
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*
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* @param \ManiaControl\ManiaControl $maniaControl
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*/
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public function __construct(ManiaControl $maniaControl) {
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$this->maniaControl = $maniaControl;
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$this->initTables();
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$this->pluginMenu = new PluginMenu($maniaControl);
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$this->maniaControl->configurator->addMenu($this->pluginMenu);
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}
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/**
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* Initialize necessary database tables
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*
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* @return bool
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*/
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private function initTables() {
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$mysqli = $this->maniaControl->database->mysqli;
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$pluginsTableQuery = "CREATE TABLE IF NOT EXISTS `" . self::TABLE_PLUGINS . "` (
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`index` int(11) NOT NULL AUTO_INCREMENT,
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`className` varchar(100) NOT NULL,
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`active` tinyint(1) NOT NULL DEFAULT '0',
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`changed` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
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PRIMARY KEY (`index`),
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UNIQUE KEY `className` (`className`)
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) ENGINE=MyISAM DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci COMMENT='ManiaControl plugin status' AUTO_INCREMENT=1;";
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$tableStatement = $mysqli->prepare($pluginsTableQuery);
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if ($mysqli->error) {
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trigger_error($mysqli->error, E_USER_ERROR);
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return false;
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}
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$tableStatement->execute();
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if ($tableStatement->error) {
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trigger_error($tableStatement->error, E_USER_ERROR);
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return false;
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}
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$tableStatement->close();
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return true;
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}
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/**
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* Check if the plugin is running
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*
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* @param string $pluginClass
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* @return bool
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*/
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public function isPluginActive($pluginClass) {
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if (is_object($pluginClass)) {
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$pluginClass = get_class($pluginClass);
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}
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return isset($this->activePlugins[$pluginClass]);
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}
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/**
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* Check if the given class implements the plugin interface
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*
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* @param string $pluginClass
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* @return bool
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*/
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public function isPluginClass($pluginClass) {
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if (is_object($pluginClass)) {
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$pluginClass = get_class($pluginClass);
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}
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if (!in_array(Plugin::PLUGIN_INTERFACE, class_implements($pluginClass))) {
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return false;
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}
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return true;
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}
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/**
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* Add the class to array of loaded plugin classes
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*
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* @param string $pluginClass
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* @return bool
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*/
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public function addPluginClass($pluginClass) {
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if (is_object($pluginClass)) {
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$pluginClass = get_class($pluginClass);
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}
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if (in_array($pluginClass, $this->pluginClasses)) {
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return false;
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}
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if (!$this->isPluginClass($pluginClass)) {
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return false;
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}
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array_push($this->pluginClasses, $pluginClass);
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return true;
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}
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/**
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* Activate and start the plugin with the given name
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*
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* @param string $pluginClass
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* @param string $adminLogin
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* @return bool
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*/
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public function activatePlugin($pluginClass, $adminLogin = null) {
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if (!is_string($pluginClass)) {
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return false;
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}
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if (!$this->isPluginClass($pluginClass)) {
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return false;
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}
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if ($this->isPluginActive($pluginClass)) {
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return false;
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}
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$plugin = new $pluginClass();
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/** @var Plugin $plugin */
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$this->activePlugins[$pluginClass] = $plugin;
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$this->savePluginStatus($pluginClass, true);
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try {
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$plugin->load($this->maniaControl);
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} catch(\Exception $e) {
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$this->maniaControl->chat->sendError('Error while plugin activating ' . $pluginClass . ': ' . $e->getMessage(), $adminLogin);
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$this->maniaControl->log('Error while plugin activation: ' . $pluginClass . ': ' . $e->getMessage());
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unset($this->activePlugins[$pluginClass]);
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$this->savePluginStatus($pluginClass, false);
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return false;
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}
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$this->savePluginStatus($pluginClass, true);
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return true;
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}
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/**
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* Deactivate the plugin with the given class
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*
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* @param string $pluginClass
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* @return bool
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*/
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public function deactivatePlugin($pluginClass) {
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if (is_object($pluginClass)) {
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$pluginClass = get_class($pluginClass);
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}
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if (!$this->isPluginActive($pluginClass)) {
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return false;
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}
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$plugin = $this->activePlugins[$pluginClass];
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/** @var Plugin $plugin */
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unset($this->activePlugins[$pluginClass]);
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$plugin->unload();
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$interfaces = class_implements($pluginClass);
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if (in_array(CallbackListener::CALLBACKLISTENER_INTERFACE, $interfaces)) {
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$this->maniaControl->callbackManager->unregisterCallbackListener($plugin);
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$this->maniaControl->callbackManager->unregisterScriptCallbackListener($plugin);
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}
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if (in_array(ManialinkPageAnswerListener::MANIALINKPAGEANSWERLISTENER_INTERFACE, $interfaces)) {
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$this->maniaControl->manialinkManager->unregisterManialinkPageAnswerListener($plugin);
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}
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$this->savePluginStatus($pluginClass, false);
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return true;
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}
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/**
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* Load complete plugins directory and start all configured plugins
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*/
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public function loadPlugins($dir = '') {
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$pluginsDirectory = ManiaControlDir . '/plugins/' . $dir . '/';
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$pluginFiles = scandir($pluginsDirectory, 0);
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foreach($pluginFiles as $pluginFile) {
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if (stripos($pluginFile, '.') === 0) {
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continue;
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}
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if (is_dir($pluginsDirectory . $pluginFile)) {
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$this->loadPlugins($pluginFile);
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continue;
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}
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$classesBefore = get_declared_classes();
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$success = include_once $pluginsDirectory . $pluginFile;
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if (!$success) {
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continue;
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}
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$classesAfter = get_declared_classes();
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$newClasses = array_diff($classesAfter, $classesBefore);
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foreach($newClasses as $className) {
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if (!$this->isPluginClass($className)) {
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continue;
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}
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//Prepare Plugin
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$className::prepare($this->maniaControl);
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$this->addPluginClass($className);
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if ($this->isPluginActive($className)) {
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continue;
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}
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if (!$this->getSavedPluginStatus($className)) {
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continue;
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}
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$this->activatePlugin($className);
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}
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}
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}
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/**
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* Returns an Plugin if it is activated
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*
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* @param string $pluginClass
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* @return Plugin
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*/
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public function getPlugin($pluginClass) {
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if ($this->isPluginActive($pluginClass)) {
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return $this->activePlugins[$pluginClass];
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}
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return null;
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}
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/**
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* Get all declared plugin class names
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*
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* @return array
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*/
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public function getPluginClasses() {
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return $this->pluginClasses;
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}
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/**
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* Get all active plugins
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*
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* @return array
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*/
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public function getActivePlugins() {
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return $this->activePlugins;
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}
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/**
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* Save plugin status in database
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*
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* @param string $className
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* @param bool $active
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* @return bool
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*/
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private function savePluginStatus($className, $active) {
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$mysqli = $this->maniaControl->database->mysqli;
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$pluginStatusQuery = "INSERT INTO `" . self::TABLE_PLUGINS . "` (
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`className`,
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`active`
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) VALUES (
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?, ?
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) ON DUPLICATE KEY UPDATE
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`active` = VALUES(`active`);";
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$pluginStatement = $mysqli->prepare($pluginStatusQuery);
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if ($mysqli->error) {
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trigger_error($mysqli->error);
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return false;
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}
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$activeInt = ($active ? 1 : 0);
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$pluginStatement->bind_param('si', $className, $activeInt);
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$pluginStatement->execute();
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if ($pluginStatement->error) {
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trigger_error($pluginStatement->error);
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$pluginStatement->close();
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return false;
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}
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$pluginStatement->close();
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return true;
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}
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/**
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* Get plugin status from database
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*
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* @param string $className
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* @return bool
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*/
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private function getSavedPluginStatus($className) {
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$mysqli = $this->maniaControl->database->mysqli;
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$pluginStatusQuery = "SELECT `active` FROM `" . self::TABLE_PLUGINS . "`
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WHERE `className` = ?;";
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$pluginStatement = $mysqli->prepare($pluginStatusQuery);
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if ($mysqli->error) {
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trigger_error($mysqli->error);
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return false;
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}
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$pluginStatement->bind_param('s', $className);
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$pluginStatement->execute();
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if ($pluginStatement->error) {
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trigger_error($pluginStatement->error);
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$pluginStatement->close();
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return false;
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}
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$pluginStatement->store_result();
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if ($pluginStatement->num_rows <= 0) {
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$pluginStatement->free_result();
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$pluginStatement->close();
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$this->savePluginStatus($className, false);
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return false;
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}
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$pluginStatement->bind_result($activeInt);
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$pluginStatement->fetch();
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$active = ($activeInt === 1);
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$pluginStatement->free_result();
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$pluginStatement->close();
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return $active;
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}
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}
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