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<?php |
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namespace ApacheSolrForTypo3\Tika\Controller\Backend; |
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use ApacheSolrForTypo3\Tika\Service\Tika\AppService; |
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use ApacheSolrForTypo3\Tika\Service\Tika\ServerService; |
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use ApacheSolrForTypo3\Tika\Service\Tika\ServiceFactory; |
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use ApacheSolrForTypo3\Tika\Service\Tika\SolrCellService; |
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use Psr\Http\Message\ResponseInterface; |
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use Psr\Http\Message\ServerRequestInterface; |
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use TYPO3\CMS\Core\Resource\ResourceFactory; |
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use TYPO3\CMS\Core\Utility\GeneralUtility; |
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use TYPO3\CMS\Fluid\View\StandaloneView; |
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/** |
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* Class PreviewController |
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* @package ApacheSolrForTypo3\Tika\Controller\Backend |
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*/ |
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class PreviewController { |
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/** |
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* @param ServerRequestInterface $request |
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* @param ResponseInterface $response |
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* @return string |
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*/ |
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public function previewAction(ServerRequestInterface $request, ResponseInterface $response) |
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{ |
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if (!$this->getIsAdmin()) { |
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$response->getBody()->write('Only admins can see the tika preview'); |
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return $response; |
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} |
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$identifier = (string)$request->getQueryParams()['identifier']; |
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$file = $this->getFileResourceFactory()->getFileObjectFromCombinedIdentifier($identifier); |
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$tikaService = $this->getConfiguredTikaService(); |
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$metadata = $tikaService->extractMetaData($file); |
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$content = $tikaService->extractText($file); |
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try { |
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$language = $tikaService->detectLanguageFromFile($file); |
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} catch (\Exception $e) { |
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$language = 'not detectable'; |
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} |
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$view = $this->getInitializedPreviewView(); |
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$view->assign('metadata', $metadata); |
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$view->assign('content', $content); |
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$view->assign('language', $language); |
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$response->getBody()->write($view->render()); |
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return $response; |
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} |
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/** |
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* @return AppService|ServerService|SolrCellService |
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*/ |
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protected function getConfiguredTikaService() |
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{ |
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return ServiceFactory::getConfiguredTika(); |
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} |
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/** |
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* @return \TYPO3\CMS\Core\Resource\ResourceFactory |
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*/ |
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protected function getFileResourceFactory(): ResourceFactory |
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{ |
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return \TYPO3\CMS\Core\Resource\ResourceFactory::getInstance(); |
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} |
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/** |
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* @return StandaloneView |
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*/ |
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protected function getInitializedPreviewView(): StandaloneView |
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{ |
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/** @var $view StandaloneView */ |
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$view = GeneralUtility::makeInstance(StandaloneView::class); |
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$view->getRequest()->setControllerExtensionName('tika'); |
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$templatePathAndFile = 'EXT:tika/Resources/Private/Templates/Backend/Preview.html'; |
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$view->setTemplatePathAndFilename(GeneralUtility::getFileAbsFileName($templatePathAndFile)); |
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return $view; |
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} |
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/** |
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* @return boolean |
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*/ |
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protected function getIsAdmin() |
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{ |
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return (bool)$GLOBALS['BE_USER']->isAdmin(); |
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} |
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} |
TYPO3-Solr /
ext-tika
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