ExtensionService.php

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<?php
namespace TYPO3\CMS\Extbase\Service;

class ExtensionService implements \TYPO3\CMS\Core\SingletonInterface {

    const PLUGIN_TYPE_PLUGIN = 'list_type';
    const PLUGIN_TYPE_CONTENT_ELEMENT = 'CType';

    protected $objectManager;

    protected $configurationManager;

    protected $targetPidPluginCache = array();

    public function getPluginNamespace($extensionName, $pluginName) {
        $pluginSignature = strtolower($extensionName . '_' . $pluginName);
        $defaultPluginNamespace = 'tx_' . $pluginSignature;
        $frameworkConfiguration = $this->configurationManager->getConfiguration(\TYPO3\CMS\Extbase\Configuration\ConfigurationManagerInterface::CONFIGURATION_TYPE_FRAMEWORK, $extensionName, $pluginName);
        if (!isset($frameworkConfiguration['view']['pluginNamespace']) || empty($frameworkConfiguration['view']['pluginNamespace'])) {
            return $defaultPluginNamespace;
        }
        return $frameworkConfiguration['view']['pluginNamespace'];
    }

    public function getPluginNameByAction($extensionName, $controllerName, $actionName) {
        $frameworkConfiguration = $this->configurationManager->getConfiguration(\TYPO3\CMS\Extbase\Configuration\ConfigurationManagerInterface::CONFIGURATION_TYPE_FRAMEWORK);
        // check, whether the current plugin is configured to handle the action
        if ($extensionName === $frameworkConfiguration['extensionName']) {
            if (isset($frameworkConfiguration['controllerConfiguration'][$controllerName]) && in_array($actionName, $frameworkConfiguration['controllerConfiguration'][$controllerName]['actions'])) {
                return $frameworkConfiguration['pluginName'];
            }
        }
        if (!is_array($GLOBALS['TYPO3_CONF_VARS']['EXTCONF']['extbase']['extensions'][$extensionName]['plugins'])) {
            return NULL;
        }
        $pluginNames = array();
        foreach ($GLOBALS['TYPO3_CONF_VARS']['EXTCONF']['extbase']['extensions'][$extensionName]['plugins'] as $pluginName => $pluginConfiguration) {
            if (!is_array($pluginConfiguration['controllers'])) {
                continue;
            }
            foreach ($pluginConfiguration['controllers'] as $pluginControllerName => $pluginControllerActions) {
                if (strtolower($pluginControllerName) !== strtolower($controllerName)) {
                    continue;
                }
                if (in_array($actionName, $pluginControllerActions['actions'])) {
                    $pluginNames[] = $pluginName;
                }
            }
        }
        if (count($pluginNames) > 1) {
            throw new \TYPO3\CMS\Extbase\Exception('There is more than one plugin that can handle this request (Extension: "' . $extensionName . '", Controller: "' . $controllerName . '", action: "' . $actionName . '"). Please specify "pluginName" argument', 1280825466);
        }
        return count($pluginNames) > 0 ? $pluginNames[0] : NULL;
    }

    public function isActionCacheable($extensionName, $pluginName, $controllerName, $actionName) {
        $frameworkConfiguration = $this->configurationManager->getConfiguration(\TYPO3\CMS\Extbase\Configuration\ConfigurationManagerInterface::CONFIGURATION_TYPE_FRAMEWORK, $extensionName, $pluginName);
        if (isset($frameworkConfiguration['controllerConfiguration'][$controllerName]) && is_array($frameworkConfiguration['controllerConfiguration'][$controllerName]) && is_array($frameworkConfiguration['controllerConfiguration'][$controllerName]['nonCacheableActions']) && in_array($actionName, $frameworkConfiguration['controllerConfiguration'][$controllerName]['nonCacheableActions'])) {
            return FALSE;
        }
        return TRUE;
    }

    public function getTargetPidByPlugin($extensionName, $pluginName) {
        $frameworkConfiguration = $this->configurationManager->getConfiguration(\TYPO3\CMS\Extbase\Configuration\ConfigurationManagerInterface::CONFIGURATION_TYPE_FRAMEWORK, $extensionName, $pluginName);
        if (!isset($frameworkConfiguration['view']['defaultPid']) || empty($frameworkConfiguration['view']['defaultPid'])) {
            return NULL;
        }
        $pluginSignature = strtolower($extensionName . '_' . $pluginName);
        if ($frameworkConfiguration['view']['defaultPid'] === 'auto') {
            if (!array_key_exists($pluginSignature, $this->targetPidPluginCache)) {
                $pages = $GLOBALS['TYPO3_DB']->exec_SELECTgetRows('pid', 'tt_content', 'list_type=' . $GLOBALS['TYPO3_DB']->fullQuoteStr($pluginSignature, 'tt_content') . ' AND CType="list"' . $GLOBALS['TSFE']->sys_page->enableFields('tt_content') . ' AND sys_language_uid=' . $GLOBALS['TSFE']->sys_language_uid, '', '', 2);
                if (count($pages) > 1) {
                    throw new \TYPO3\CMS\Extbase\Exception('There is more than one "' . $pluginSignature . '" plugin in the current page tree. Please remove one plugin or set the TypoScript configuration "plugin.tx_' . $pluginSignature . '.view.defaultPid" to a fixed page id', 1280773643);
                }
                $this->targetPidPluginCache[$pluginSignature] = count($pages) > 0 ? $pages[0]['pid'] : NULL;
            }
            return $this->targetPidPluginCache[$pluginSignature];

        }
        return (int)$frameworkConfiguration['view']['defaultPid'];
    }

    public function getDefaultControllerNameByPlugin($extensionName, $pluginName) {
        if (!is_array($GLOBALS['TYPO3_CONF_VARS']['EXTCONF']['extbase']['extensions'][$extensionName]['plugins'][$pluginName]['controllers'])) {
            return NULL;
        }
        $controllers = $GLOBALS['TYPO3_CONF_VARS']['EXTCONF']['extbase']['extensions'][$extensionName]['plugins'][$pluginName]['controllers'];
        return key($controllers);
    }

    public function getDefaultActionNameByPluginAndController($extensionName, $pluginName, $controllerName) {
        if (!is_array($GLOBALS['TYPO3_CONF_VARS']['EXTCONF']['extbase']['extensions'][$extensionName]['plugins'][$pluginName]['controllers'][$controllerName]['actions'])) {
            return NULL;
        }
        $actions = $GLOBALS['TYPO3_CONF_VARS']['EXTCONF']['extbase']['extensions'][$extensionName]['plugins'][$pluginName]['controllers'][$controllerName]['actions'];
        return current($actions);
    }

    public function getTargetPageTypeByFormat($extensionName, $format) {
        $targetPageType = 0;
        $settings = $this->configurationManager->getConfiguration(\TYPO3\CMS\Extbase\Configuration\ConfigurationManagerInterface::CONFIGURATION_TYPE_SETTINGS, $extensionName);
        $formatToPageTypeMapping = isset($settings['view']['formatToPageTypeMapping']) ? $settings['view']['formatToPageTypeMapping'] : array();
        if (is_array($formatToPageTypeMapping) && array_key_exists($format, $formatToPageTypeMapping)) {
            $targetPageType = (int)$formatToPageTypeMapping[$format];
        }
        return $targetPageType;
    }

}