improved readability for crossword input field numbers
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Daniel
commit
b9bca6e2c5
229 changed files with 21548 additions and 0 deletions
368
controllers/MediaController.inc
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368
controllers/MediaController.inc
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<?php
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/**
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* The Legend of Z
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*
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* @author Oliver Hanraths <oliver.hanraths@uni-duesseldorf.de>
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* @copyright 2014 Heinrich-Heine-Universität Düsseldorf
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* @license http://www.gnu.org/licenses/gpl.html
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* @link https://bitbucket.org/coderkun/the-legend-of-z
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*/
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namespace hhu\z\controllers;
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/**
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* Controller of the MediaAgent to process and show Media.
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*
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* @author Oliver Hanraths <oliver.hanraths@uni-duesseldorf.de>
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*/
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class MediaController extends \hhu\z\controllers\SeminaryRoleController
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{
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/**
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* User permissions
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*
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* @var array
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*/
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public $permissions = array(
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'index' => array('admin', 'moderator', 'user', 'guest'),
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'seminaryheader' => array('admin', 'moderator', 'user', 'guest'),
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'seminary' => array('admin', 'moderator', 'user', 'guest'),
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'achievement' => array('admin', 'moderator', 'user', 'guest')
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);
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/**
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* User seminary permissions
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*
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* @var array
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*/
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public $seminaryPermissions = array(
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'seminary' => array('admin', 'moderator', 'user', 'guest'),
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'achievement' => array('admin', 'moderator', 'user', 'guest')
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);
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/**
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* Required models
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*
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* @var array
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*/
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public $models = array('seminaries', 'achievements', 'media');
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/**
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* Prefilter.
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*
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* @param Request $request Current request
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* @param Response $response Current response
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*/
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public function preFilter(\nre\core\Request $request, \nre\core\Response $response)
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{
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parent::preFilter($request, $response);
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// Set headers for caching control
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$response->addHeader("Pragma: public");
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$response->addHeader("Cache-control: public, max-age=".(60*60*24));
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$response->addHeader("Expires: ".gmdate('r', time()+(60*60*24)));
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$response->addHeader("Date: ".gmdate(\DateTime::RFC822));
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}
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/**
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* Action: index
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*
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* Display a medium.
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*
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* @param string $mediaUrl URL-name of the medium
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* @param string $action Action for processing the media
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*/
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public function index($mediaUrl, $action=null)
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{
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// Get Media
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$media = $this->Media->getMediaByUrl($mediaUrl);
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// Get file
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$file = $this->getMediaFile($media, $action);
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if(is_null($media)) {
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return;
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}
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// Pass data to view
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$this->set('media', $media);
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$this->set('file', $file);
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}
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/**
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* Action: seminaryheader
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*
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* Display the header of a Seminary.
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*
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* @throws IdNotFoundException
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* @param string $seminaryUrl URL-title of the Seminary
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* @param string $action Action for processing the media
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*/
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public function seminaryheader($seminaryUrl, $action=null)
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{
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// Get Seminary
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$seminary = $this->Seminaries->getSeminaryByUrl($seminaryUrl);
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// Get media
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$media = $this->Media->getSeminaryMediaById($seminary['seminarymedia_id']);
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// Get file
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$file = $this->getMediaFile($media, $action);
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if(is_null($file)) {
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return;
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}
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// Pass data to view
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$this->set('media', $media);
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$this->set('file', $file);
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}
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/**
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* Action: seminary.
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*
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* Display a Seminary medium.
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*
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* @throws IdNotFoundException
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* @param string $seminaryUrl URL-title of the Seminary
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* @param string $mediaUrl URL-name of the medium
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* @param string $action Action for processing the media
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*/
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public function seminary($seminaryUrl, $mediaUrl, $action=null)
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{
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// Get Seminary
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$seminary = $this->Seminaries->getSeminaryByUrl($seminaryUrl);
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// Get Media
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$media = $this->Media->getSeminaryMediaByUrl($seminary['id'], $mediaUrl);
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// Get file
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$file = $this->getMediaFile($media, $action);
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if(is_null($media)) {
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return;
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}
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// Pass data to view
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$this->set('media', $media);
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$this->set('file', $file);
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}
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/**
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* Action: achievement
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*
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* Display the achievement of a Seminary.
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*
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* @throws IdNotFoundException
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* @param string $seminaryUrl URL-title of the Seminary
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* @param string $achievementUrl URL-title of the Achievement
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* @param string $action Action for processing the media
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*/
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public function achievement($seminaryUrl, $achievementUrl)
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{
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// Get Seminary
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$seminary = $this->Seminaries->getSeminaryByUrl($seminaryUrl);
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// Get Character
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$character = IntermediateController::$character;
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// Get Achievement
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$achievement = $this->Achievements->getAchievementByUrl($seminary['id'], $achievementUrl);
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// Get media
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$index = '';
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if(is_null($character) || !$this->Achievements->hasCharacterAchievedAchievement($achievement['id'], $character['id'])) {
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$index = 'unachieved_achievementsmedia_id';
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}
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else {
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$index = 'achieved_achievementsmedia_id';
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}
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if(is_null($achievement[$index])) {
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throw new \nre\exceptions\IdNotFoundException($achievementUrl);
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}
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$media = $this->Media->getSeminaryMediaById($achievement[$index]);
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// Get file
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$file = $this->getMediaFile($media, null);
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if(is_null($file)) {
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return;
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}
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// Pass data to view
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$this->set('media', $media);
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$this->set('file', $file);
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}
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/**
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* Determine file information and set the HTTP-header for
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* caching accordingly.
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*
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* @param string $fileName Filename
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* @return boolean HTTP-status 304 was set (in cache)
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*/
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private function setCacheHeaders($fileName)
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{
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// Determine last change of file
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$fileLastModified = gmdate('r', filemtime($fileName));
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// Generate E-Tag
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$fileEtag = hash('sha256', $fileLastModified.$fileName);
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// Set header
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$this->response->addHeader("Last-Modified: ".$fileLastModified);
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$this->response->addHeader("Etag: ".$fileEtag);
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// HTTP-status
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$headerModifiedSince = $this->request->getServerParam('HTTP_IF_MODIFIED_SINCE');
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$headerNoneMatch = $this->request->getServerParam('HTTP_IF_NONE_MATCH');
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if(
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!is_null($headerModifiedSince) && $fileLastModified < strtotime($headerModifiedSince) &&
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!is_null($headerNoneMatch) && $headerNoneMatch == $fileEtag
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) {
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$this->response->setExit(true);
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$this->response->addHeader(\nre\core\WebUtils::getHttpHeader(304));
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return true;
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}
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return false;
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}
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/**
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* Determine the file for a medium and process it if necessary.
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*
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* @throws IdNotFoundException
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* @throws ParamsNotValidException
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* @param array $media Medium to get file for
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* @param string $action Action for processing the media
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* @return object File for the medium (or null if medium is cached)
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*/
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private function getMediaFile($media, $action=null)
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{
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// Get format
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$format = explode('/', $media['mimetype']);
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$format = $format[1];
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// Set content-type
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$this->response->addHeader("Content-type: ".$media['mimetype']."");
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// Set filename
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$media['filename'] = ROOT.DS.\nre\configs\AppConfig::$dirs['seminarymedia'].DS.$media['id'];
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if(!file_exists($media['filename'])) {
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throw new \nre\exceptions\IdNotFoundException($mediaUrl);
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}
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// Cache
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if($this->setCacheHeaders($media['filename'])) {
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return null;
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}
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// Load and process file
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$file = null;
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switch($action)
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{
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// No action
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case null:
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// Do not process the file
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$file = file_get_contents($media['filename']);
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break;
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case 'questgroup':
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if(!in_array(strtoupper($format), self::getImageTypes())) {
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$file = file_get_contents($media['filename']);
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}
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else
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{
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$file = self::resizeImage(
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$media['filename'],
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$format,
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480
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);
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}
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break;
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default:
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throw new ParamsNotValidException($action);
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break;
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}
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// Return file
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return $file;
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}
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/**
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* Get supported image types.
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*
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* @return array List of supported image types
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*/
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private static function getImageTypes()
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{
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$im = new \Imagick();
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return $im->queryFormats();
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}
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/**
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* Resize an image.
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*
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* @param string $fileName Absolute pathname of image to resize
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* @param string $mimeType Mimetype of target image
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* @param int $size New size to resize to
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*/
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private static function resizeImage($fileName, $mimeType, $size)
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{
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// Read image from cache
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$tempFileName = ROOT.DS.\nre\configs\AppConfig::$dirs['temporary'].DS.'media-'.basename($fileName).'-'.$size;
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if(file_exists($tempFileName))
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{
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// Check age of file
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if(date('r', filemtime($tempFileName)+(60*60*24)) > date('r', time())) {
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// Too old, delete
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unlink($tempFileName);
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}
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else {
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// Valid, read and return
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return file_get_contents($tempFileName);
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}
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}
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// ImageMagick
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$im = new \Imagick($fileName);
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// Calculate new size
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$geometry = $im->getImageGeometry();
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if($geometry['width'] < $size) {
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$size = $geometry['width'];
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}
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// Process
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$im->thumbnailImage($size, 5000, true);
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$im->contrastImage(1);
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$im->setImageFormat($mimeType);
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// Save temporary file
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$im->writeImage($tempFileName);
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// Return resized image
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return $im;
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}
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}
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?>
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