512 lines
15 KiB
PHP
512 lines
15 KiB
PHP
<?php
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/*------------------------------------------------------------------------------
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Copyright (c) 2004 Media Development Loan Fund
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This file is part of the LiveSupport project.
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http://livesupport.campware.org/
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To report bugs, send an e-mail to bugs@campware.org
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LiveSupport is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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LiveSupport 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 General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with LiveSupport; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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Author : $Author: tomas $
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Version : $Revision: 1.15 $
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Location : $Source: /home/paul/cvs2svn-livesupport/newcvsrepo/livesupport/modules/storageServer/var/GreenBox.php,v $
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------------------------------------------------------------------------------*/
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require_once "BasicStor.php";
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/**
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* GreenBox class
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*
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* LiveSupport file storage module
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*
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* @author $Author: tomas $
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* @version $Revision: 1.15 $
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* @see BasicStor
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*/
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class GreenBox extends BasicStor{
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/* ======================================================= public methods */
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/**
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* Create new folder
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*
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* @param parid int, parent id
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* @param folderName string, name for new folder
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* @param sessid string, session id
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* @return id of new folder
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* @exception PEAR::error
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*/
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function createFolder($parid, $folderName, $sessid='')
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{
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if(($res = $this->_authorize('write', $parid, $sessid)) !== TRUE)
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return $res;
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return $this->bsCreateFolder($parid, $folderName , 'Folder', $parid);
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}
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/**
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* Store new file in the storage
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*
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* @param parid int, parent id
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* @param fileName string, name for new file
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* @param mediaFileLP string, local path of media file
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* @param mdataFileLP string, local path of metadata file
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* @param sessid string, session id
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* @param gunid string, global unique id OPTIONAL
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* @param ftype string, internal file type
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* @return int
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* @exception PEAR::error
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*/
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function putFile($parid, $fileName,
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$mediaFileLP, $mdataFileLP, $sessid='',
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$gunid=NULL, $ftype='audioclip')
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{
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if(($res = $this->_authorize('write', $parid, $sessid)) !== TRUE)
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return $res;
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return $this->bsPutFile(
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$parid, $fileName, $mediaFileLP, $mdataFileLP, $gunid, $ftype
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);
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}
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/**
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* Analyze media file for internal metadata information
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*
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* @param id int, virt.file's local id
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* @param sessid string, session id
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* @return array
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*/
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function analyzeFile($id, $sessid='')
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{
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if(($res = $this->_authorize('read', $id, $sessid)) !== TRUE)
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return $res;
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return $this->bsAnalyzeFile($id);
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}
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/**
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* Rename file
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*
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* @param id int, virt.file's local id
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* @param newName string
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* @param sessid string, session id
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* @return boolean or PEAR::error
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*/
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function renameFile($id, $newName, $sessid='')
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{
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$parid = $this->getParent($id);
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if(($res = $this->_authorize('write', $parid, $sessid)) !== TRUE)
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return $res;
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return $this->bsRenameFile($id, $newName);
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}
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/**
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* Move file
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*
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* @param id int, virt.file's local id
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* @param did int, destination folder local id
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* @param sessid string, session id
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* @return boolean or PEAR::error
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*/
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function moveFile($id, $did, $sessid='')
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{
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if(($res = $this->_authorize(
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array('read', 'write'), array($id, $did), $sessid
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)) !== TRUE) return $res;
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return $this->bsMoveFile($id, $did);
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}
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/**
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* Copy file
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*
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* @param id int, virt.file's local id
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* @param did int, destination folder local id
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* @param sessid string, session id
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* @return boolean or PEAR::error
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*/
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function copyFile($id, $did, $sessid='')
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{
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if(($res = $this->_authorize(
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array('read', 'write'), array($id, $did), $sessid
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)) !== TRUE) return $res;
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return $this->bsCopyFile($id, $did);
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}
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/**
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* Delete file
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*
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* @param id int, virt.file's local id
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* @param sessid int
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* @return true or PEAR::error
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*/
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function deleteFile($id, $sessid='')
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{
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$parid = $this->getParent($id);
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if(($res = $this->_authorize('write', $parid, $sessid)) !== TRUE)
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return $res;
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return $this->bsDeleteFile($id);
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}
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/* ----------------------------------------------------- put, access etc. */
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/**
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* Create and return access link to media file
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*
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* @param id int, virt.file's local id
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* @param sessid string, session id
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* @return array with: seekable filehandle, access token
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*/
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function access($id, $sessid='')
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{
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$ac =& StoredFile::recall(&$this, $id);
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if(PEAR::isError($ac)) return $ac;
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if(($res = $this->_authorize('read', $id, $sessid)) !== TRUE)
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return $res;
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return $ac->accessRawMediaData($sessid);
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}
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/**
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* Release access link to media file
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*
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* @param sessid string, session id
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* @param token string, access token
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* @return boolean or PEAR::error
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*/
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function release($token, $sessid='')
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{
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$ac =& StoredFile::recallByToken(&$this, $token);
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if(PEAR::isError($ac)) return $ac;
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return $ac->releaseRawMediaData($sessid, $token);
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}
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/* ---------------------------------------------- replicas, versions etc. */
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/**
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* Create replica.<br>
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* <b>TODO: NOT FINISHED</b>
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*
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* @param id int, virt.file's local id
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* @param did int, destination folder local id
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* @param replicaName string, name of new replica
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* @param sessid string, session id
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* @return int, local id of new object
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*/
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function createReplica($id, $did, $replicaName='', $sessid='')
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{
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if(($res = $this->_authorize(
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array('read', 'write'), array($id, $did), $sessid
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)) !== TRUE) return $res;
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return $this->bsCreateReplica($id, $did, $replicaName);
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}
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/**
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* Create version.<br>
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* <b>TODO: NOT FINISHED</b>
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*
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* @param id int, virt.file's local id
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* @param did int, destination folder local id
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* @param versionLabel string, name of new version
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* @param sessid string, session id
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* @return int, local id of new object
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*/
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function createVersion($id, $did, $versionLabel, $sessid='')
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{
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return $this->bsCreateVersion($id, $did, $versionLabel);
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}
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/* ------------------------------------------------------------- metadata */
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/**
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* Replace metadata with new XML file or string
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*
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* @param id int, virt.file's local id
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* @param mdata string, local path of metadata XML file
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* @param mdataLoc string 'file'|'string'
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* @param sessid string, session id
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* @return boolean or PEAR::error
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*/
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function replaceMetadata($id, $mdata, $mdataLoc='file', $sessid='')
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{
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if(($res = $this->_authorize('write', $id, $sessid)) !== TRUE)
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return $res;
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return $this->bsReplaceMetadata($id, $mdata, $mdataLoc);
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}
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/**
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* Get metadata XML tree as string
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*
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* @param id int, virt.file's local id
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* @param sessid string, session id
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* @return string or PEAR::error
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*/
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function getMdata($id, $sessid='')
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{
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if(($res = $this->_authorize('read', $id, $sessid)) !== TRUE)
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return $res;
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return $this->bsGetMetadata($id);
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}
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/**
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* Search in local metadata database.<br>
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* <b>TODO: NOT FINISHED</b><br>
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* It will support structured queries - array of mode and query parts.
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* Mode is "match all" or "match any".
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* Query parts is array of [fieldname, operator, value] entities.
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*
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*
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* @param criteria string, search query -
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* only one SQL LIKE term supported now.
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* It will be searched in all literal object values
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* in metadata database
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* @param sessid string, session id
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* @return array of gunid strings
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*/
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function localSearch($criteria, $sessid='')
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{
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return $this->bsLocalSearch($criteria);
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}
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/* --------------------------------------------------------- info methods */
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/**
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* List files in folder
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*
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* @param id int, local id of folder
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* @param sessid string, session id
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* @return array
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*/
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function listFolder($id, $sessid='')
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{
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if(($res = $this->_authorize('read', $id, $sessid)) !== TRUE)
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return $res;
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return $this->bsListFolder($id);
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}
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/* ---------------------------------------------------- redefined methods */
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/**
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* Logout and destroy session
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*
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* @param sessid string
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* @return true/err
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*/
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function logout($sessid)
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{
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/* release all accessed files on logout - probably not useful
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$acfa = $this->dbc->getAll("SELECT * FROM {$this->accessTable}
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WHERE sessid='$sessid'");
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if(PEAR::isError($acfa)) return $acfa;
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foreach($acfa as $i=>$acf){
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$ac =& StoredFile::recallByToken(&$this, $acf['token']);
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$ac->releaseRawMediaData($sessid, $acf['token']);
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}
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*/
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return parent::logout($sessid);
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}
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/**
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* Add new user with home folder
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*
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* @param login string
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* @param pass string OPT
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* @return int/err
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*/
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function addSubj($login, $pass=NULL)
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{
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$uid = parent::addSubj($login, $pass);
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if(PEAR::isError($uid)) return $uid;
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$fid = $this->addObj($login , 'Folder', $this->storId);
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if(PEAR::isError($fid)) return $fid;
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$res = $this->addPerm($uid, '_all', $fid, 'A');
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if(PEAR::isError($res)) return $res;
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return $uid;
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}
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/**
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* Remove user and his home folder
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*
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* @param login string
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* @param uid int OPT
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* @return boolean/err
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*/
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function removeSubj($login, $uid=NULL)
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{
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$res = parent::removeSubj($login, $pass);
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if(PEAR::isError($res)) return $res;
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$id = $this->getObjId($login, $this->storId);
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if(PEAR::isError($id)) return $id;
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$res = $this->removeObj($id);
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if(PEAR::isError($res)) return $res;
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return TRUE;
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}
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/**
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* Get file's path in virtual filesystem
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*
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* @param id int
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* @return array
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*/
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function getPath($id)
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{
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$pa = parent::getPath($id, 'id, name, type'); array_shift($pa);
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return $pa;
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}
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/* ==================================================== "private" methods */
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/**
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* Copy virtual file.<br>
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* Redefined from parent class.
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*
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* @return id
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*/
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function copyObj($id, $newParid, $after='')
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{
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$nid = parent::copyObj($id, $newParid, $after='');
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if($this->getObjType($id)==='File'){
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$ac =& StoredFile::recall(&$this, $id);
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if(PEAR::isError($ac)){ return $ac; }
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$ac2 =& StoredFile::copyOf(&$ac, $nid);
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}
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return $nid;
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}
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/**
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* Optionaly remove virtual file with the same name and add new one.<br>
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* Redefined from parent class.
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*
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* @return id
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*/
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function addObj($name, $type, $parid=1, $aftid=NULL, $param='')
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{
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if(!is_null($exid = $this->getObjId($name, $parid)))
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{ $this->removeObj($exid); }
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return parent::addObj($name, $type, $parid, $aftid, $param);
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}
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/**
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* Remove virtual file.<br>
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* Redefined from parent class.
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*
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* @param id int, local id of removed object
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* @return true or PEAR::error
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*/
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function removeObj($id)
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{
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switch($this->getObjType($id)){
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case"File":
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$ac =& StoredFile::recall(&$this, $id);
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if(!PEAR::isError($ac)){
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$ac->delete();
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}
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parent::removeObj($id);
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break;
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case"Folder":
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parent::removeObj($id);
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break;
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case"Replica":
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parent::removeObj($id);
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break;
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default:
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}
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return TRUE;
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}
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/**
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* Return users's home folder local ID
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*
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* @param sessid string, session ID
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* @return local folder id
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*/
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function _getHomeDirId($sessid)
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{
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$parid = $this->getObjId(
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$this->getSessLogin($sessid), $this->storId
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);
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return $parid;
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}
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/**
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* Check authorization - auxiliary method
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*
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* @param acts array of actions
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* @param pars array of parameters - e.g. ids
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* @param sessid string, session id
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* @return true or PEAR::error
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*/
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function _authorize($acts, $pars, $sessid='')
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{
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$userid = $this->getSessUserId($sessid);
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if(!is_array($pars)) $pars = array($pars);
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if(!is_array($acts)) $acts = array($acts);
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$perm = true;
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foreach($acts as $i=>$action){
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$res = $this->checkPerm($userid, $action, $pars[$i]);
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if(PEAR::isError($res)) return $res;
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$perm = $perm && $res;
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}
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if($perm) return TRUE;
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$adesc = "[".join(',',$acts)."]";
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return PEAR::raiseError("GreenBox::$adesc: access denied", GBERR_DENY);
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}
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/**
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* Create fake session for downloaded files
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*
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* @param userid user id
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* @return string sessid
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*/
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function _fakeSession($userid)
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{
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$sessid = $this->_createSessid();
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if(PEAR::isError($sessid)) return $sessid;
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$login = $this->getSubjName($userid);
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$r = $this->dbc->query("INSERT INTO {$this->sessTable}
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(sessid, userid, login, ts)
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VALUES
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('$sessid', '$userid', '$login', now())");
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if(PEAR::isError($r)) return $r;
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return $sessid;
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}
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/**
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* Get local id from global id
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*
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* @param gunid string global id
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* @return int local id
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*/
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function _idFromGunid($gunid)
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{
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return $this->dbc->getOne(
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"SELECT id FROM {$this->filesTable} WHERE gunid=x'$gunid'::bigint"
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);
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}
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/**
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* Get global id from local id
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*
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* @param id int local id
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* @return string global id
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*/
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function _gunidFromId($id)
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{
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if(!is_numeric($id)) return NULL;
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$gunid = $this->dbc->getOne("
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SELECT to_hex(gunid)as gunid FROM {$this->filesTable}
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WHERE id='$id'
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");
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if(is_null($gunid)) return NULL;
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return StoredFile::_normalizeGunid($gunid);
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}
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}
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?>
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