348 lines
12 KiB
PHP
348 lines
12 KiB
PHP
<?php
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/**
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; under version 2
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* of the License (non-upgradable).
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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* Copyright (c) 2014-2020 (original work) Open Assessment Technologies SA;
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*/
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declare(strict_types=1);
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namespace oat\taoMediaManager\model;
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use common_exception_Error;
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use common_exception_UserReadableException;
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use core_kernel_classes_Class;
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use core_kernel_classes_Resource;
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use Exception;
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use helpers_File;
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use oat\oatbox\filesystem\File;
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use common_report_Report as Report;
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use oat\oatbox\log\LoggerAwareTrait;
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use oat\oatbox\log\TaoLoggerAwareInterface;
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use oat\oatbox\service\ConfigurableService;
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use oat\oatbox\service\ServiceManager;
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use oat\taoMediaManager\model\sharedStimulus\parser\SharedStimulusMediaExtractor;
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use tao_helpers_File;
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use tao_helpers_form_Form as Form;
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use oat\tao\model\import\ImportHandlerHelperTrait;
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use oat\tao\model\import\TaskParameterProviderInterface;
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use qtism\data\QtiComponent;
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use qtism\data\storage\xml\XmlDocument;
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use qtism\data\storage\xml\XmlStorageException;
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use tao_helpers_Uri;
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use tao_models_classes_import_ImportHandler;
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/**
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* @access public
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* @package taoMediaManager
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*/
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class SharedStimulusImporter extends ConfigurableService implements
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tao_models_classes_import_ImportHandler,
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TaskParameterProviderInterface,
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TaoLoggerAwareInterface
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{
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use ImportHandlerHelperTrait {
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getTaskParameters as getDefaultTaskParameters;
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}
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use LoggerAwareTrait;
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/** @var SharedStimulusPackageImporter */
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private $zipImporter = null;
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/** @var string */
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private $instanceUri;
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public function setInstanceUri(string $instanceUri): self
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{
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$this->instanceUri = $instanceUri;
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return $this;
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}
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/**
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* Returns a textual description of the import format
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*
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* @return string
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*/
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public function getLabel()
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{
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return __('Shared Stimulus');
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}
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/**
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* Returns a form in order to prepare the import
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* if the import is from a file, the form should include the file element
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*
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* @return Form
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*/
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public function getForm()
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{
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return (new FileImportForm($this->instanceUri))
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->getForm();
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}
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/**
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* Starts the import based on the form
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*
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* @param core_kernel_classes_Class $class
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* @param Form|array $form
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* @param string|null $userId owner of the resource
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*
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* @return Report $report
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*
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* @throws common_exception_Error
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*/
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public function import($class, $form, $userId = null)
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{
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$uploadedFile = $this->fetchUploadedFile($form);
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try {
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$service = $this->getMediaService();
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$classUri = $class->getUri();
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$instanceUri = $form instanceof Form
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? $form->getValue('instanceUri')
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: (isset($form['instanceUri']) ? $form['instanceUri'] : null);
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$fileInfo = $form instanceof Form ? $form->getValue('source') : $form['source'];
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// importing new media
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if (!$instanceUri || $instanceUri === $classUri) {
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//if the file is a zip do a zip import
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if (!helpers_File::isZipMimeType($fileInfo['type'])) {
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try {
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self::isValidSharedStimulus($uploadedFile);
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$mediaResourceUri = $service->createMediaInstance(
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$uploadedFile,
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$classUri,
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tao_helpers_Uri::decode($form instanceof Form ? $form->getValue('lang') : $form['lang']),
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$fileInfo['name'],
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MediaService::SHARED_STIMULUS_MIME_TYPE,
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$userId
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);
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if (!$mediaResourceUri) {
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$report = Report::createFailure(__('Fail to import Shared Stimulus'));
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$report->setData(['uriResource' => '']);
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} else {
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$report = Report::createSuccess(__('Shared Stimulus imported successfully'));
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$report->add(Report::createSuccess(
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__('Imported %s', $fileInfo['name']),
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['uriResource' => $mediaResourceUri] // 'uriResource' key is needed by javascript in tao/views/templates/form/import.tpl
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));
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}
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} catch (XmlStorageException $e) {
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// The shared stimulus is not qti compliant, display error
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$report = Report::createFailure($e->getMessage());
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$report->setData(['uriResource' => '']);
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}
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} else {
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$report = $this->getZipImporter()->import($class, $form, $userId);
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}
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} else {
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if (!helpers_File::isZipMimeType($fileInfo['type'])) {
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self::isValidSharedStimulus($uploadedFile);
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if (in_array($fileInfo['type'], ['application/xml', 'text/xml'])) {
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$name = basename($fileInfo['name'], 'xml');
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$name .= 'xhtml';
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$filepath = tao_helpers_File::concat([dirname($fileInfo['name']), $name]);
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$fileResource = fopen($filepath, 'w');
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$uploadedFileResource = $uploadedFile->readStream();
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stream_copy_to_stream($uploadedFileResource, $fileResource);
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fclose($fileResource);
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fclose($uploadedFileResource);
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}
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$instanceEdited = $service->editMediaInstance(
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isset($filepath) ? $filepath : $uploadedFile,
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$instanceUri,
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tao_helpers_Uri::decode($form instanceof Form ? $form->getValue('lang') : $form['lang']),
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$userId
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);
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if (!$instanceEdited) {
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$report = Report::createFailure(__('Fail to edit shared stimulus'));
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} else {
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$report = Report::createSuccess(__('Shared Stimulus edited successfully'));
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$report->add(
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Report::createSuccess(
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__('Edited %s', $fileInfo['name']),
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[
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'uriResource' => $instanceUri
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]
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)
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);
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}
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$report->setData(['uriResource' => $instanceUri]);
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} else {
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$report = $this->getZipImporter()->edit(new core_kernel_classes_Resource($instanceUri), $form, $userId);
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}
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}
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} catch (Exception $e) {
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$message = $e instanceof common_exception_UserReadableException
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? $e->getUserMessage()
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: __('An error has occurred. Please contact your administrator.');
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$report = Report::createFailure($message);
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$report->setData(['uriResource' => '']);
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$this->logError($e->getMessage());
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}
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$this->getUploadService()->remove($uploadedFile);
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return $report;
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}
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/**
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* @param string|File $file
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*
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* @return XmlDocument
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*
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* @throws XmlStorageException
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*/
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public static function isValidSharedStimulus($file)
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{
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// No $version given = auto detect.
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$xmlDocument = new XmlDocument();
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// don't validate because of APIP
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if ($file instanceof File) {
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$xml = $file->read();
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$xmlDocument->loadFromString($xml, false);
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} elseif (is_file($file) && is_readable($file)) {
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$xmlDocument->load($file, false);
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$xml = file_get_contents($file);
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}
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// The shared stimulus is qti compliant, see if it is not an interaction, feedback or template
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if (self::hasInteraction($xmlDocument->getDocumentComponent())) {
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throw new XmlStorageException("The shared stimulus contains interactions QTI components.");
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}
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if (self::hasFeedback($xmlDocument->getDocumentComponent())) {
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throw new XmlStorageException("The shared stimulus contains feedback QTI components.");
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}
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if (self::hasTemplate($xmlDocument->getDocumentComponent())) {
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throw new XmlStorageException("The shared stimulus contains template QTI components.");
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}
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ServiceManager::getServiceManager()->get(SharedStimulusMediaExtractor::class)
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->assertMediaFileExists($xml);
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return $xmlDocument;
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}
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private static function hasInteraction(QtiComponent $domDocument): bool
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{
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$interactions = [
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'endAttemptInteraction',
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'inlineChoiceInteraction',
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'textEntryInteraction',
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'associateInteraction',
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'choiceInteraction',
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'drawingInteraction',
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'extendedTextInteraction',
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'gapMatchInteraction',
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'graphicAssociateInteraction',
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'graphicGapMatchInteraction',
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'graphicOrderInteraction',
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'hotspotInteraction',
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'selectPointInteraction',
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'hottextInteraction',
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'matchInteraction',
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'mediaInteraction',
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'orderInteraction',
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'sliderInteraction',
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'uploadInteraction',
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'customInteraction',
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'positionObjectInteraction',
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];
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return self::hasComponents($domDocument, $interactions);
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}
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private static function hasFeedback(QtiComponent $domDocument): bool
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{
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$feedback = [
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'feedbackBlock',
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'feedbackInline'
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];
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return self::hasComponents($domDocument, $feedback);
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}
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private static function hasTemplate(QtiComponent $domDocument): bool
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{
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return self::hasComponents($domDocument, 'templateDeclaration');
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}
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/**
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* @param string|string[] $className
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*/
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private static function hasComponents(QtiComponent $domDocument, $className): bool
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{
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return $domDocument->getComponentsByClassName($className)->count() > 0;
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}
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/**
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* @param SharedStimulusPackageImporter $zipImporter
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* @return $this
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*/
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public function setZipImporter($zipImporter)
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{
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$this->zipImporter = $zipImporter;
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return $this;
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}
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/**
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* Get the zip importer for shared stimulus
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*
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* @return SharedStimulusPackageImporter
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*/
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protected function getZipImporter()
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{
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if (!$this->zipImporter) {
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$this->zipImporter = new SharedStimulusPackageImporter();
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$this->zipImporter->setServiceLocator($this->getServiceLocator());
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}
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return $this->zipImporter;
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}
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/**
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* Defines the task parameters to be stored for later use.
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*
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* @param Form $form
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* @return array
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*/
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public function getTaskParameters(Form $form)
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{
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return array_merge(
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$form->getValues(),
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$this->getDefaultTaskParameters($form)
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);
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}
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private function getMediaService(): MediaService
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{
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return $this->getServiceLocator()->get(MediaService::class);
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}
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}
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