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<?php
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/**
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* ownCloud - Documents App
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*
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* @author Victor Dubiniuk
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* @copyright 2013 Victor Dubiniuk victor.dubiniuk@gmail.com
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU AFFERO GENERAL PUBLIC LICENSE
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* License as published by the Free Software Foundation; either
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* version 3 of the License, or any later version.
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*
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* This library 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 AFFERO GENERAL PUBLIC LICENSE for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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namespace OCA\Documents;
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class File {
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protected $fileId;
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protected $owner;
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protected $path;
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protected $sharing;
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public function __construct($fileId){
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if (!$fileId){
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throw new \Exception('No valid file has been passed');
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}
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$this->fileId = $fileId;
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//if you know how to get sharing info by fileId via API,
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//please send me a link to video tutorial :/
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$this->sharing = $this->getSharingOps();
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}
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public static function getByShareToken($token){
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$linkItem = \OCP\Share::getShareByToken($token);
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if (is_array($linkItem) && isset($linkItem['uid_owner'])) {
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// seems to be a valid share
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$rootLinkItem = \OCP\Share::resolveReShare($linkItem);
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$fileOwner = $rootLinkItem['uid_owner'];
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} else {
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throw new \Exception('This file was probably unshared');
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}
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$file = new File($rootLinkItem['file_source']);
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return $file;
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}
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public function getFileId(){
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return $this->fileId;
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}
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public function setOwner($owner){
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$this->owner = $owner;
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}
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public function setPath($path){
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$this->path = $path;
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}
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public function isPublicShare(){
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foreach ($this->sharing as $share){
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if (
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$share['share_type'] == \OCP\Share::SHARE_TYPE_LINK
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|| $share['share_type'] == \OCP\Share::SHARE_TYPE_EMAIL
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){
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return true;
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}
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}
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return false;
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}
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/**
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*
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* @return string owner of the current file item
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* @throws \Exception
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*/
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public function getOwnerViewAndPath(){
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if (!$this->owner || !$this->path){
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$info = $this->getSharedFileOwnerAndPath();
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if (is_array($info) && count($info)){
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$owner = $info[0];
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$path = $info[1];
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} else {
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list($owner, $path) = $this->getLocalFileOwnerAndPath();
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}
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if (!$path){
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throw new \Exception($this->fileId . ' can not be resolved');
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}
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$this->path = $path;
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$this->owner = $owner;
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}
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/* to emit hooks properly, view root should contain /user/files */
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if (strpos($this->path, 'files') === 0){
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$this->path = preg_replace('|^files|', '', $this->path);
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$view = new View('/' . $this->owner . '/files');
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} else {
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$view = new View('/' . $this->owner);
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}
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if (!$view->file_exists($this->path)){
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throw new \Exception($this->path . ' doesn\'t exist');
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}
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return array($view, $this->path);
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}
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public function getOwner(){
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if (!$this->owner){
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$this->getOwnerViewAndPath();
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}
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return $this->owner;
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}
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protected function getSharedFileOwnerAndPath(){
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$result = array();
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foreach ($this->sharing as $share){
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return array(
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$share['uid_owner'],
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$share['path']
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);
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}
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return $result;
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}
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protected function getLocalFileOwnerAndPath(){
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$fileInfo = \OC\Files\Cache\Cache::getById($this->fileId);
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$owner = \OCP\User::getUser();
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if (!$owner){
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throw new Exception('Guest users can\'t access local files. This one was probably unshared recently.');
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}
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return array ($owner, @$fileInfo[1]);
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}
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protected function getSharingOps(){
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$where = 'AND `file_source`=?';
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$values = array($this->fileId);
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if (\OCP\User::isLoggedIn()){
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$where .= ' AND ((`share_type`=' . \OCP\Share::SHARE_TYPE_USER . ' AND `share_with`=?) OR `share_type`=' . \OCP\Share::SHARE_TYPE_LINK . ')';
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$values[] = \OCP\User::getUser();
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} else {
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$where .= ' AND (`share_type`=' . \OCP\Share::SHARE_TYPE_LINK . ')';
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}
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$query = \OC_DB::prepare('SELECT `*PREFIX*share`.`id`, `item_type`, `*PREFIX*share`.`parent`, `uid_owner`, '
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.'`share_type`, `share_with`, `file_source`, `path`, `file_target`, '
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.'`permissions`, `expiration`, `storage`, `*PREFIX*filecache`.`parent` as `file_parent`, '
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.'`name`, `mtime`, `mimetype`, `mimepart`, `size`, `encrypted`, `etag`'
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.'FROM `*PREFIX*share` INNER JOIN `*PREFIX*filecache` ON `file_source` = `*PREFIX*filecache`.`fileid` WHERE `item_type` = \'file\' ' . $where);
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$result = $query->execute($values);
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$shares = $result->fetchAll();
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$origins = array();
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if (is_array($shares)){
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foreach ($shares as $share){
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$origin = \OCP\Share::resolveReShare($share);
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if (!isset($origin['path']) && isset($origin['file_target'])){
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$origin['path'] = 'files/' . $origin['file_target'];
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}
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$origins[] = $origin;
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}
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}
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return $origins;
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}
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}
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