<?php
  /**
   * Copyright (c) 2012 Robin Appelman <icewind@owncloud.com>
   * This file is licensed under the Affero General Public License version 3 or
   * later.
   * See the COPYING-README file.
   */
  
  OCP\JSON::checkAppEnabled('gallery');
  
  if (isset($_GET['token'])) {
  	$token = $_GET['token'];
  	$linkItem = \OCP\Share::getShareByToken($token);
  	if (is_array($linkItem) && isset($linkItem['uid_owner'])) {
  		// seems to be a valid share
  		$type = $linkItem['item_type'];
  		$fileSource = $linkItem['file_source'];
  		$shareOwner = $linkItem['uid_owner'];
  		$path = null;
  		$rootLinkItem = \OCP\Share::resolveReShare($linkItem);
  		$fileOwner = $rootLinkItem['uid_owner'];
  
  		// Setup FS with owner
  		OCP\JSON::checkUserExists($fileOwner);
  		OC_Util::tearDownFS();
  		OC_Util::setupFS($fileOwner);
  
  		// The token defines the target directory (security reasons)
  		$path = \OC\Files\Filesystem::getPath($linkItem['file_source']);
  
  		$view = new \OC\Files\View(\OC\Files\Filesystem::getView()->getAbsolutePath($path));
  		$images = $view->searchByMime('image');
  
  		foreach ($images as &$image) {
  			$image['path'] = $token . $image['path'];
  		}
  
  		OCP\JSON::setContentTypeHeader();
  		echo json_encode(array('images' => $images, 'users' => array(), 'displayNames' => array()));
  
  		exit;
  	}
  }
  
  OCP\JSON::checkLoggedIn();
  OCP\JSON::checkAppEnabled('gallery');
  
  $images = \OCP\Files::searchByMime('image');
  $user = \OCP\User::getUser();
  
  foreach ($images as &$image) {
  	$path = $user . $image['path'];
  	if (strpos($path, DIRECTORY_SEPARATOR . ".")) {
  		continue;
  	}
  	$image['path'] = $user . $image['path'];
  }
  
  $shared = array();
  $sharedSources = OCP\Share::getItemsSharedWith('file');
  $users = array();
  foreach ($sharedSources as $sharedSource) {
  	$owner = $sharedSource['uid_owner'];
  	if (array_search($owner, $users) === false) {
  		$users[] = $owner;
  	}
  	\OC\Files\Filesystem::initMountPoints($owner);
  	$ownerView = new \OC\Files\View('/' . $owner . '/files');
  	$path = $ownerView->getPath($sharedSource['item_source']);
  	if ($path) {
  		$shareName = basename($path);
  		$shareView = new \OC\Files\View('/' . $owner . '/files' . $path);
  		$sharedImages = $shareView->searchByMime('image');
  		foreach ($sharedImages as $sharedImage) {
  			// set the file_source in the path so we can get the original shared folder later
  			$sharedImage['path'] = $owner . '/' . $sharedSource['file_source'] . '/' . $shareName . $sharedImage['path'];
  			$images[] = $sharedImage;
  		}
  	}
  }
  
  $displayNames = array();
  foreach ($users as $user) {
  	$displayNames[$user] = \OCP\User::getDisplayName($user);
  }
  
  function startsWith($haystack, $needle) {
  	return !strncmp($haystack, $needle, strlen($needle));
  }
  
  OCP\JSON::setContentTypeHeader();
  echo json_encode(array('images' => $images, 'users' => $users, 'displayNames' => $displayNames));