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200 lines
4.9 KiB
PHP
200 lines
4.9 KiB
PHP
<?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 Affero 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 = array();
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protected $token ='';
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protected $passwordProtected = false;
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public function __construct($fileId, $shareOps = null){
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if (!$fileId){
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throw new \Exception('No valid file has been passed');
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}
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$this->fileId = $fileId;
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//if you know how to get sharing info by fileId via API,
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//please send me a link to video tutorial :/
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if (!is_null($shareOps)){
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$this->sharing = $shareOps;
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}
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}
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public static function getByShareToken($token){
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$linkItem = \OCP\Share::getShareByToken($token, false);
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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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} 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'], array($rootLinkItem));
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$file->setToken($token);
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if (isset($linkItem['share_with']) && !empty($linkItem['share_with'])){
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$file->setPasswordProtected(true);
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}
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return $file;
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}
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public function getToken(){
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return $this->token;
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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 = $path;
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}
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public function setToken($token){
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$this->token = $token;
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}
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public function isPublicShare(){
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return !empty($this->token);
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}
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public function isPasswordProtected(){
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return $this->passwordProtected;
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}
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public function checkPassword($password){
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$shareId = $this->sharing[0]['id'];
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if (!$this->isPasswordProtected()
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|| (\OC::$server->getSession()->exists('public_link_authenticated')
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&& \OC::$server->getSession()->get('public_link_authenticated') === $shareId
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)
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){
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return true;
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}
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// Check Password
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$forcePortable = (CRYPT_BLOWFISH != 1);
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$hasher = new \PasswordHash(8, $forcePortable);
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if (
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$hasher->CheckPassword(
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$password.\OC_Config::getValue('passwordsalt', ''),
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$this->getPassword()
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)
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) {
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// Save item id in session for future request
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\OC::$server->getSession()->set('public_link_authenticated', $shareId);
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return true;
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}
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return false;
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}
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public function setPasswordProtected($value){
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$this->passwordProtected = $value;
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}
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public function getPermissions(){
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if (count($this->sharing)){
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if ($this->isPublicShare()){
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$permissions = \OCP\PERMISSION_READ | \OCP\PERMISSION_UPDATE;
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} else {
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$permissions = $this->sharing[0]['permissions'];
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}
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} else {
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list($owner, $path) = $this->getOwnerViewAndPath();
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$permissions = 0;
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if (\OC\Files\Filesystem::isReadable($path)){
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$permissions |= \OCP\PERMISSION_READ;
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}
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if (\OC\Files\Filesystem::isUpdatable($path)){
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$permissions |= \OCP\PERMISSION_UPDATE;
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}
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}
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return $permissions;
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}
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/**
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*
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* @return string owner of the current file item
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* @throws \Exception
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*/
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public function getOwnerViewAndPath($useDefaultRoot = false){
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if ($this->isPublicShare()){
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$rootLinkItem = \OCP\Share::resolveReShare($this->sharing[0]);
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if (isset($rootLinkItem['uid_owner'])){
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$owner = $rootLinkItem['uid_owner'];
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\OCP\JSON::checkUserExists($rootLinkItem['uid_owner']);
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\OC_Util::tearDownFS();
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\OC_Util::setupFS($rootLinkItem['uid_owner']);
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} else {
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throw new \Exception($this->fileId . ' is a broken share');
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}
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$view = new View('/' . $owner . '/files');
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} else {
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$owner = \OCP\User::getUser();
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$root = '/' . $owner;
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if ($useDefaultRoot){
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$root .= '/' . 'files';
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}
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$view = new View($root);
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}
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$path = $view->getPath($this->fileId);
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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 = $owner;
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if (!$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 getPassword(){
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return $this->sharing[0]['share_with'];
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}
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}
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