ConfigurationItemRepository.php

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<?php
namespace TYPO3\CMS\Extensionmanager\Domain\Repository;

use TYPO3\CMS\Core\Utility\ArrayUtility;
use TYPO3\CMS\Core\Utility\GeneralUtility;

class ConfigurationItemRepository {

    protected $objectManager;

    public function findByExtensionKey($extensionKey) {
        $configurationArray = $this->getConfigurationArrayFromExtensionKey($extensionKey);
        return $this->convertHierarchicArrayToObject($configurationArray);
    }

    protected function getConfigurationArrayFromExtensionKey($extensionKey) {
        $configurationUtility = $this->objectManager->get('TYPO3\\CMS\\Extensionmanager\\Utility\\ConfigurationUtility');
        $defaultConfiguration = $configurationUtility->getDefaultConfigurationFromExtConfTemplateAsValuedArray($extensionKey);

        $resultArray = array();
        if (count($defaultConfiguration) > 0) {
            $metaInformation = $this->addMetaInformation($defaultConfiguration);
            $configuration = $this->mergeWithExistingConfiguration($defaultConfiguration, $extensionKey);
            $hierarchicConfiguration = array();
            foreach ($configuration as $configurationOption) {
                $originalConfiguration = $this->buildConfigurationArray($configurationOption, $extensionKey);
                ArrayUtility::mergeRecursiveWithOverrule($originalConfiguration, $hierarchicConfiguration);
                $hierarchicConfiguration = $originalConfiguration;
            }

            // Flip category array as it was merged the other way around
            $hierarchicConfiguration = array_reverse($hierarchicConfiguration);

            // Sort configurations of each subcategory
            foreach ($hierarchicConfiguration as &$catConfigurationArray) {
                foreach ($catConfigurationArray as &$subcatConfigurationArray) {
                    uasort($subcatConfigurationArray, function ($a, $b) {
                        return strnatcmp($a['subcat'], $b['subcat']);
                    });
                }
                unset($subcatConfigurationArray);
            }
            unset($tempConfiguration);

            ArrayUtility::mergeRecursiveWithOverrule($hierarchicConfiguration, $metaInformation);
            $resultArray = $hierarchicConfiguration;
        }

        return $resultArray;
    }

    protected function buildConfigurationArray($configurationOption, $extensionKey) {
        $hierarchicConfiguration = array();
        if (GeneralUtility::isFirstPartOfStr($configurationOption['type'], 'user')) {
            $configurationOption = $this->extractInformationForConfigFieldsOfTypeUser($configurationOption);
        } elseif (GeneralUtility::isFirstPartOfStr($configurationOption['type'], 'options')) {
            $configurationOption = $this->extractInformationForConfigFieldsOfTypeOptions($configurationOption);
        }
        if ($this->translate($configurationOption['label'], $extensionKey)) {
            $configurationOption['label'] = $this->translate($configurationOption['label'], $extensionKey);
        }
        $configurationOption['labels'] = GeneralUtility::trimExplode(':', $configurationOption['label'], FALSE, 2);
        $configurationOption['subcat_name'] = $configurationOption['subcat_name'] ?: '__default';
        $hierarchicConfiguration[$configurationOption['cat']][$configurationOption['subcat_name']][$configurationOption['name']] = $configurationOption;
        return $hierarchicConfiguration;
    }

    protected function extractInformationForConfigFieldsOfTypeOptions(array $configurationOption) {
        preg_match('/options\[(.*)\]/is', $configurationOption['type'], $typeMatches);
        $optionItems = GeneralUtility::trimExplode(',', $typeMatches[1]);
        foreach ($optionItems as $optionItem) {
            $optionPair = GeneralUtility::trimExplode('=', $optionItem);
            if (count($optionPair) === 2) {
                $configurationOption['generic'][$optionPair[0]] = $optionPair[1];
            } else {
                $configurationOption['generic'][$optionPair[0]] = $optionPair[0];
            }
        }
        $configurationOption['type'] = 'options';
        return $configurationOption;
    }

    protected function extractInformationForConfigFieldsOfTypeUser(array $configurationOption) {
        preg_match('/user\\[(.*)\\]/is', $configurationOption['type'], $matches);
        $configurationOption['generic'] = $matches[1];
        $configurationOption['type'] = 'user';
        return $configurationOption;
    }

    protected function addMetaInformation(&$configuration) {
        $metaInformation = $configuration['__meta__'] ?: array();
        unset($configuration['__meta__']);
        return $metaInformation;
    }

    protected function mergeWithExistingConfiguration(array $defaultConfiguration, $extensionKey) {
        try {
            $currentExtensionConfig = unserialize(
                $this->objectManager->get('TYPO3\\CMS\\Core\\Configuration\\ConfigurationManager')
                    ->getConfigurationValueByPath('EXT/extConf/' . $extensionKey)
            );
            if (!is_array($currentExtensionConfig)) {
                $currentExtensionConfig = array();
            }
        } catch (\RuntimeException $e) {
            $currentExtensionConfig = array();
        }
        $flatExtensionConfig = ArrayUtility::flatten($currentExtensionConfig);
        $valuedCurrentExtensionConfig = array();
        foreach ($flatExtensionConfig as $key => $value) {
            $valuedCurrentExtensionConfig[$key]['value'] = $value;
        }
        ArrayUtility::mergeRecursiveWithOverrule($defaultConfiguration, $valuedCurrentExtensionConfig);
        return $defaultConfiguration;
    }

    protected function convertHierarchicArrayToObject(array $configuration) {
        $configurationObjectStorage = new \SplObjectStorage();
        foreach ($configuration as $category => $subcategory) {
            $configurationCategoryObject = $this->objectManager->get('TYPO3\\CMS\\Extensionmanager\\Domain\\Model\\ConfigurationCategory');
            $configurationCategoryObject->setName($category);
            if ($subcategory['highlightText']) {
                $configurationCategoryObject->setHighlightText($subcategory['highlightText']);
                unset($subcategory['highlightText']);
            }
            foreach ($subcategory as $subcatName => $configurationItems) {
                $configurationSubcategoryObject = $this->objectManager->get('TYPO3\\CMS\\Extensionmanager\\Domain\\Model\\ConfigurationSubcategory');
                $configurationSubcategoryObject->setName($subcatName);
                foreach ($configurationItems as $configurationItem) {
                    // Set sub category label if configuration item contains a subcat label.
                    // The sub category label is set multiple times if there is more than one item
                    // in a sub category, but that is ok since all items of one sub category
                    // share the same label.
                    if (array_key_exists('subcat_label', $configurationItem)) {
                        $configurationSubcategoryObject->setLabel($configurationItem['subcat_label']);
                    }

                    $configurationObject = $this->objectManager->get('TYPO3\\CMS\\Extensionmanager\\Domain\\Model\\ConfigurationItem');
                    if (isset($configurationItem['generic'])) {
                        $configurationObject->setGeneric($configurationItem['generic']);
                    }
                    if (isset($configurationItem['cat'])) {
                        $configurationObject->setCategory($configurationItem['cat']);
                    }
                    if (isset($configurationItem['subcat_name'])) {
                        $configurationObject->setSubCategory($configurationItem['subcat_name']);
                    }
                    if (isset($configurationItem['labels']) && isset($configurationItem['labels'][0])) {
                        $configurationObject->setLabelHeadline($configurationItem['labels'][0]);
                    }
                    if (isset($configurationItem['labels']) && isset($configurationItem['labels'][1])) {
                        $configurationObject->setLabelText($configurationItem['labels'][1]);
                    }
                    if (isset($configurationItem['type'])) {
                        $configurationObject->setType($configurationItem['type']);
                    }
                    if (isset($configurationItem['name'])) {
                        $configurationObject->setName($configurationItem['name']);
                    }
                    if (isset($configurationItem['value'])) {
                        $configurationObject->setValue($configurationItem['value']);
                    }
                    if (isset($configurationItem['highlight'])) {
                        $configurationObject->setHighlight($configurationItem['highlight']);
                    }
                    $configurationSubcategoryObject->addItem($configurationObject);
                }
                $configurationCategoryObject->addSubcategory($configurationSubcategoryObject);
            }
            $configurationObjectStorage->attach($configurationCategoryObject);
        }
        return $configurationObjectStorage;
    }

    protected function translate($key, $extensionName) {
        $translation = \TYPO3\CMS\Extbase\Utility\LocalizationUtility::translate($key, $extensionName);
        if ($translation) {
            return $translation;
        }
        return NULL;
    }

}