<?php
  /**
   * Copyright (c) 2013 Georg Ehrke georg@ownCloud.com
   * This file is licensed under the Affero General Public License version 3 or
   * later.
   * See the COPYING-README file.
   */
  \OC_Util::checkLoggedIn();

  $file = array_key_exists('file', $_GET) ? (string)$_GET['file'] : '';
  $maxX = array_key_exists('x', $_GET) ? (int)$_GET['x'] : '36';
  $maxY = array_key_exists('y', $_GET) ? (int)$_GET['y'] : '36';
  $scalingUp = array_key_exists('scalingup', $_GET) ? (bool)$_GET['scalingup'] : true;
  $keepAspect = array_key_exists('a', $_GET) ? true : false;
  $always = array_key_exists('forceIcon', $_GET) ? (bool)$_GET['forceIcon'] : true;

  if ($file === '') {

  	//400 Bad Request
  	\OC_Response::setStatus(400);
  	\OC_Log::write('core-preview', 'No file parameter was passed', \OC_Log::DEBUG);
  	exit;
  }

  if ($maxX === 0 || $maxY === 0) {

  	//400 Bad Request
  	\OC_Response::setStatus(400);
  	\OC_Log::write('core-preview', 'x and/or y set to 0', \OC_Log::DEBUG);
  	exit;
  }

  try {

  	$preview = new \OC\Preview(\OC_User::getUser(), 'files');

  	if (!$always and !$preview->isMimeSupported(\OC\Files\Filesystem::getMimeType($file))) {
  		\OC_Response::setStatus(404);
  	} else {
  		$preview->setFile($file);
  		$preview->setMaxX($maxX);
  		$preview->setMaxY($maxY);
  		$preview->setScalingUp($scalingUp);
  		$preview->setKeepAspect($keepAspect);
  	}

  	$preview->showPreview();
  } catch (\Exception $e) {

  	\OC_Response::setStatus(500);
  	\OC_Log::write('core', $e->getmessage(), \OC_Log::DEBUG);

  }