egroupware_official/phpgwapi/inc/class.vfs_sql2.inc.php

<?php
  /**************************************************************************\
  * eGroupWare API - VFS                                                     *
  * This file written by Jason Wies (Zone) <zone@phpgroupware.org>           *
  * This class handles file/dir access for eGroupWare                        *
  * Copyright (C) 2001 Jason Wies		                             *
  * -------------------------------------------------------------------------*
  * This library is part of the eGroupWare API                               *
  * http://www.egroupware.org/api                                            * 
  * ------------------------------------------------------------------------ *
  * This library is free software; you can redistribute it and/or modify it  *
  * under the terms of the GNU Lesser General Public License as published by *
  * the Free Software Foundation; either version 2.1 of the License,         *
  * or any later version.                                                    *
  * This library is distributed in the hope that it will be useful, but      *
  * WITHOUT ANY WARRANTY; without even the implied warranty of               *
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.                     *
  * See the GNU Lesser General Public License for more details.              *
  * You should have received a copy of the GNU Lesser General Public License *
  * along with this library; if not, write to the Free Software Foundation,  *
  * Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA            *
  \**************************************************************************/

  /* $Id$ */

	/*!
	@class vfs
	@abstract Virtual File System with SQL backend
	@description Authors: Zone
	*/

	# viniciuscb 2004-09-06 Upgraded this class to the sql implementation v2.

	/* These are used in calls to extra_sql () */
	define ('VFS_SQL_SELECT', 1);
	define ('VFS_SQL_DELETE', 2);
	define ('VFS_SQL_UPDATE', 4);
	define ('DEFAULT_LOW_PERMS',0600);

	//tmp Here because this cannot be inside class.
	//wondering if not more appropriate to have vfs_sql exactly as it is
	//inside another file 
	//Hopefully vfs_sql will not evolve anymore, and we can do these
	//modifications
/*
	//vfs high level table relationship definitions
	$GLOBALS['phpgw']->vfs_hl_tables = array(
		#main fields
		'mimetype' => array(
			'table'      => 'phpgw_vfs2_mimetypes',
			'file'       => 'mime_id,mime_id'
		),
		'file' => array(
			'table'      => 'phpgw_vfs2_files',
			'mimetype'   => 'mime_id,mime_id',
			'custom'     => 'file_id,file_id',
			'sharing'    => 'file_id,file_id',
			'versioning' => 'file_id,file_id'
		),
		'custom' => array(
			'table'      => 'phpgw_vfs2_customfields_data',
			'file'       => 'file_id,file_id'
		),
		'sharing' => array(
			'table'      => 'phpgw_vfs2_shares',
			'file'       => 'file_id,file_id'
		),
		'versioning' => array(
			'table'      => 'phpgw_vfs2_versioning',
			'file'       => 'file_id,file_id'
		),
		#other fields
		'custom_desc' => array(
			'table' => 'phpgw_vfs2_customfields'
		),
		'quota' => array(
			'table' => 'phpgw_vfs2_quota'
		)
	);
*/

	#upd viniciuscb 2004-09-06 Updated to the new database tables (the ones that
	#  match phpgw_vfs2*). I have created a class to handle mime types and one
	#  to handle the versioning system. Things can appear a litte weird 
	#  sometimes, mostly because the operations in the versioning system are not
	#  atomic as they should be (and, for example, some database operation
	#  error can make the version table inconsistent with some sort of bugs.


	class vfs extends vfs_shared
	{
		var $working_id;
		var $working_lid;
		var $meta_types;
		var $now;
		var $file_actions;
//		var $db_highlevel;
		var $vfs_mimetypes;
		var $vfs_versionsystem;
		var $vfs_customfields;
		var $vfs_sharing;
		var $db;

		//other attributes may be in the custom fields....

		var $attribute_tables = array(
			'file_id'       => 'phpgw_vfs2_files',	
			'owner_id'      => 'phpgw_vfs2_files',
			'createdby_id'  => 'phpgw_vfs2_files',
			'modifiedby_id' => 'phpgw_vfs2_versioning',
			'created'       => 'phpgw_vfs2_files',
			'modified'      => 'phpgw_vfs2_versioning',
			'size'			=> 'phpgw_vfs2_files',
			'mime_type'     => 'phpgw_vfs2_mimetypes',
			'comment'       => 'phpgw_vfs2_files',
			'app'           => 'phpgw_vfs2_files',
			'directory'     => 'phpgw_vfs2_files',
			'name'          => 'phpgw_vfs2_files',
			'link_directory'=> 'phpgw_vfs2_files',
			'link_name'     => 'phpgw_vfs2_files',
			'version'       => 'phpgw_vfs2_files'
		);

		//to external use.
		//if $custom_field_support is set, then this class have support to
		//custom fields in file.
		var $custom_field_support = 1;

		//if $search_support is set, then this class have support to
		//searching in files for a particular value in a particular property.
		var $search_support = 1;


		/*!
		@function vfs
		@abstract constructor, sets up variables
		*/
		function vfs ()
		{

			//just in case...
			if (@$GLOBALS['phpgw_info']['flags']['currentapp']=='filemanager')
			{
				echo "FILEMANAGER UNTESTED WITH VFS2. ABORTED.";
				$GLOBALS['phpgw']->common->phpgw_exit();
			}

			$this->db =& $GLOBALS['phpgw']->db;
	
			$this->vfs_shared ();
			$this->basedir = $GLOBALS['phpgw_info']['server']['files_dir'];
			$this->working_id = $GLOBALS['phpgw_info']['user']['account_id'];
			$this->working_lid = $GLOBALS['phpgw']->accounts->id2name($this->working_id);
			$this->now = date ('Y-m-d H:i:s');


//			$this->db_highlevel = CreateObject("phpgwapi.db_highlevel","phpgwapi");
//			$this->db_highlevel->set_conversion_tables($GLOBALS['phpgw']->vfs_hl_tables);

			/*
			   File/dir attributes, each corresponding to a database field.
			   Useful for use in loops If an attribute was added to the table,
			   add it here and possibly add it to set_attributes ()

			   set_attributes now uses this array().   07-Dec-01 skeeter
			*/

			$this->attributes[] = 'deleteable';
			$this->attributes[] = 'content';
			$this->attributes[] = 'is_backup';
			$this->attributes[] = 'shared';
			$this->attributes[] = 'proper_id';

			$this->attribute_tables['deleteable'] = 'phpgw_vfs2_files';
			$this->attribute_tables['content'] = 'phpgw_vfs2_files';
			$this->attribute_tables['is_backup'] = 'phpgw_vfs2_files';
			$this->attribute_tables['shared'] = 'phpgw_vfs2_files';
			$this->attribute_tables['proper_id'] = 'phpgw_vfs2_files';

			/*
			   Decide whether to use any actual filesystem calls (fopen(),
			   fread(), unlink(), rmdir(), touch(), etc.).  If not, then we're
			   working completely in the database.
			*/
			$this->file_actions = $GLOBALS['phpgw_info']['server']['file_store_contents'] == 'filesystem' ||
				!$GLOBALS['phpgw_info']['server']['file_store_contents'];

			// test if the files-dir is inside the document-root, and refuse
			// working if so
			if ($this->file_actions && $this->in_docroot($this->basedir))
			{
				$GLOBALS['phpgw']->common->phpgw_header();
				if ($GLOBALS['phpgw_info']['flags']['noheader']) 
				{
					echo parse_navbar();
				}
				echo '<p align="center"><font color="red"><b>'.lang('Path to user and group files HAS TO BE OUTSIDE of the webservers document-root!!!')."</b></font></p>\n";
				$GLOBALS['phpgw']->common->phpgw_exit();
			}
			/*
			 * These are stored in the MIME-type field and should normally be
			 * ignored.  Adding a type here will ensure it is normally ignored,
			 * but you will have to explicitly add it to acl_check (), and to
			 * any other SELECT's in this file
			*/

			#upd viniciuscb Now meta-types arent used

			#$this->meta_types = array ('journal', 'journal-deleted');


			/* We store the linked directories in an array now, so we don't
			 * have to make the SQL call again */


			if ($GLOBALS['phpgw_info']['server']['db_type']=='mssql'
				|| $GLOBALS['phpgw_info']['server']['db_type']=='sybase')
			{
				$query = $GLOBALS['phpgw']->db->query ("SELECT directory, name, link_directory, link_name, file_id FROM phpgw_vfs2_files WHERE CONVERT(varchar,link_directory) != '' AND CONVERT(varchar,link_name) != ''" . $this->extra_sql (array ('query_type' => VFS_SQL_SELECT)), __LINE__,__FILE__);
			}
			else
			{
				$query = $GLOBALS['phpgw']->db->query ("SELECT directory, name, link_directory, link_name, file_id FROM phpgw_vfs2_files WHERE (link_directory IS NOT NULL or link_directory != '') AND (link_name IS NOT NULL or link_name != '')" . $this->extra_sql (array ('query_type' => VFS_SQL_SELECT)), __LINE__,__FILE__);
			}

			$this->linked_dirs = array ();
			while ($GLOBALS['phpgw']->db->next_record ())
			{
				$this->linked_dirs[] = $GLOBALS['phpgw']->db->Record;
			}

			//set_vfs to use this very object (pass by reference)
			$this->vfs_mimetypes =& CreateObject('phpgwapi.vfs_mimetypes',false);
			$this->vfs_mimetypes->set_vfs($this);

			$this->vfs_versionsystem =& CreateObject('phpgwapi.vfs_versionsystem',false);
			$this->vfs_versionsystem->set_vfs($this);

			$this->vfs_customfields = CreateObject('phpgwapi.vfs_customfields');

			$this->vfs_sharing = CreateObject('phpgwapi.vfs_sharing');
		}

		/*!
		@function in_docroot
		@abstract test if $path lies within the webservers document-root
		*/
		function in_docroot($path)
		{
			$docroots = array(PHPGW_SERVER_ROOT,$_SERVER['DOCUMENT_ROOT']);

			foreach ($docroots as $docroot)
			{
				$len = strlen($docroot);

				if ($docroot == substr($path,0,$len))
				{
					$rest = substr($path,$len);

					if (!strlen($rest) || $rest[0] == DIRECTORY_SEPARATOR)
					{
						return True;
					}
				}
			}
			return False;
		}

		/*!
		@function extra_sql
		@abstract Return extra SQL code that should be appended to certain queries
		@param query_type The type of query to get extra SQL code for, in the form of a VFS_SQL define
		@result Extra SQL code
		*/
		function extra_sql ($data)
		{

			#upd viniciuscb 2004-08-17: this function was used mainly to avoid
			#meta-types (like journal for instance) in certain operations. Now
			#meta-types aren't used.
/*
			if (!is_array ($data))
			{
				$data = array ('query_type' => VFS_SQL_SELECT);
			}

			if ($data['query_type'] == VFS_SQL_SELECT || $data['query_type'] == VFS_SQL_DELETE || $data['query_type'] = VFS_SQL_UPDATE)
			{
				$sql = ' AND ((';

				foreach ($this->meta_types as $num => $type)
				{
					if ($num)
						$sql .= ' AND ';

					$sql .= "mime_type != '$type'";
				}

				$sql .= ') OR mime_type IS NULL)';
			}

			return ($sql);
*/
			return '';
		}

		/*!
		@function add_journal
		@abstract Add a journal entry after (or before) completing an operation,
			  and increment the version number.  This function should be used internally only
		@discussion Note that state_one and state_two are ignored for some VFS_OPERATION's, for others
			    they are required.  They are ignored for any "custom" operation
			    The two operations that require state_two:
			    operation			state_two
			    VFS_OPERATION_COPIED	fake_full_path of copied to
			    VFS_OPERATION_MOVED		fake_full_path of moved to

			    If deleting, you must call add_journal () before you delete the entry from the database
		@param string File or directory to add entry for
		@param relatives Relativity array
		@param operation The operation that was performed.  Either a VFS_OPERATION define or
				  a non-integer descriptive text string
		@param state_one The first "state" of the file or directory.  Can be a file name, size,
				  location, whatever is appropriate for the specific operation
		@param state_two The second "state" of the file or directory
		@param incversion Boolean True/False.  Increment the version for the file?  Note that this is
				   handled automatically for the VFS_OPERATION defines.
				   i.e. VFS_OPERATION_EDITED would increment the version, VFS_OPERATION_COPIED
				   would not
		@result Boolean True/False
		*/
		function add_journal ($data)
		{
			if (!is_array ($data))
			{
				$data = array ();
			}

			$default_values = array
				(
					'relatives'	=> array (RELATIVE_CURRENT),
					'state_one'	=> False,
					'state_two'	=> False,
					'incversion'	=> True
				);

			$data = array_merge ($this->default_values ($data, $default_values), $data);

			$account_id = $GLOBALS['phpgw_info']['user']['account_id'];

			$p = $this->path_parts (array ('string' => $data['string'], 'relatives' => array ($data['relatives'][0])));

			/* We check that they have some sort of access to the file other than read */
			//FIXME
			if (!$this->acl_check (array ('string' => $p->fake_full_path, 'relatives' => array ($p->mask), 'operation' => PHPGW_ACL_WRITE)) &&
				!$this->acl_check (array ('string' => $p->fake_full_path, 'relatives' => array ($p->mask), 'operation' => PHPGW_ACL_EDIT)) &&
				!$this->acl_check (array ('string' => $p->fake_full_path, 'relatives' => array ($p->mask), 'operation' => PHPGW_ACL_DELETE)))
			{
				return False;
			}

			if (!$this->file_exists (array ('string' => $p->fake_full_path, 'relatives' => array ($p->mask))))
			{
				return False;
			}

			$ls_array = $this->ls (array (
					'string' => $p->fake_full_path,
					'relatives' => array ($p->mask),
					'checksubdirs' => False,
					'mime_type'	=> False,
					'nofiles'	=> True
				)
			);
			$file_array = $ls_array[0];

			$sql = 'INSERT INTO phpgw_vfs (';
			$sql2 .= ' VALUES (';

			for ($i = 0; list ($attribute, $value) = each ($file_array); $i++)
			{
				if ($attribute == 'file_id' || $attribute == 'content')
				{
					continue;
				}

				if ($attribute == 'owner_id')
				{
					$value = $account_id;
				}

				if ($attribute == 'created')
				{
					$value = $this->now;
				}

				if ($attribute == 'modified' && !$modified)
				{
					unset ($value);
				}

				if ($attribute == 'mime_type')
				{
					$value = 'journal';
				}

				if ($attribute == 'comment')
				{
					switch ($data['operation'])
					{
						case VFS_OPERATION_CREATED:
							$value = 'Created';
							$data['incversion'] = True;
							break;
						case VFS_OPERATION_EDITED:
							$value = 'Edited';
							$data['incversion'] = True;
							break;
						case VFS_OPERATION_EDITED_COMMENT:
							$value = 'Edited comment';
							$data['incversion'] = False;
							break;
						case VFS_OPERATION_COPIED:
							if (!$data['state_one'])
							{
								$data['state_one'] = $p->fake_full_path;
							}
							if (!$data['state_two'])
							{
								return False;
							}
							$value = 'Copied '.$data['state_one'].' to '.$data['state_two'];
							$data['incversion'] = False;
							break;
						case VFS_OPERATION_MOVED:
							if (!$data['state_one'])
							{
								$data['state_one'] = $p->fake_full_path;
							}
							if (!$data['state_two'])
							{
								return False;
							}
							$value = 'Moved '.$data['state_one'].' to '.$data['state_two'];
							$data['incversion'] = False;
							break;
						case VFS_OPERATION_DELETED:
							$value = 'Deleted';
							$data['incversion'] = False;
							break;
						default:
							$value = $data['operation'];
							break;
					}
				}

				/*
				   Let's increment the version for the file itself.  We keep the current
				   version when making the journal entry, because that was the version that
				   was operated on.  The maximum numbers for each part in the version string:
				   none.99.9.9
				*/
				if ($attribute == 'version' && $data['incversion'])
				{
					$version_parts = split ("\.", $value);
					$newnumofparts = $numofparts = count ($version_parts);

					if ($version_parts[3] >= 9)
					{
						$version_parts[3] = 0;
						$version_parts[2]++;
						$version_parts_3_update = 1;
					}
					elseif (isset ($version_parts[3]))
					{
						$version_parts[3]++;
					}

					if ($version_parts[2] >= 9 && $version_parts[3] == 0 && $version_parts_3_update)
					{
						$version_parts[2] = 0;
						$version_parts[1]++;
					}

					if ($version_parts[1] > 99)
					{
						$version_parts[1] = 0;
						$version_parts[0]++;
					}

					for ($i = 0; $i < $newnumofparts; $i++)
					{
						if (!isset ($version_parts[$i]))
						{
							break;
						}

						if ($i)
						{
							$newversion .= '.';
						}

						$newversion .= $version_parts[$i];
					}

					$this->set_attributes (array(
							'string'	=> $p->fake_full_path,
							'relatives'	=> array ($p->mask),
							'attributes'	=> array(
										'version' => $newversion
									)
						)
					);
				}

				if (isset ($value))
				{
					if ($i > 1)
					{
						$sql .= ', ';
						$sql2 .= ', ';
					}

					$sql .= "$attribute";
					$sql2 .= "'" . $this->clean_string (array ('string' => $value)) . "'";
				}
			}

			$sql .= ')';
			$sql2 .= ')';

			$sql .= $sql2;

			/*
			   These are some special situations where we need to flush the journal entries
			   or move the 'journal' entries to 'journal-deleted'.  Kind of hackish, but they
			   provide a consistent feel to the system
			*/
			if ($data['operation'] == VFS_OPERATION_CREATED)
			{
				$flush_path = $p->fake_full_path;
				$deleteall = True;
			}

			if ($data['operation'] == VFS_OPERATION_COPIED || $data['operation'] == VFS_OPERATION_MOVED)
			{
				$flush_path = $data['state_two'];
				$deleteall = False;
			}

			if ($flush_path)
			{
				$flush_path_parts = $this->path_parts (array(
						'string'	=> $flush_path,
						'relatives'	=> array (RELATIVE_NONE)
					)
				);

				$this->flush_journal (array(
						'string'	=> $flush_path_parts->fake_full_path,
						'relatives'	=> array ($flush_path_parts->mask),
						'deleteall'	=> $deleteall
					)
				);
			}

			if ($data['operation'] == VFS_OPERATION_COPIED)
			{
				/*
				   We copy it going the other way as well, so both files show the operation.
				   The code is a bad hack to prevent recursion.  Ideally it would use VFS_OPERATION_COPIED
				*/
				$this->add_journal (array(
						'string'	=> $data['state_two'],
						'relatives'	=> array (RELATIVE_NONE),
						'operation'	=> 'Copied '.$data['state_one'].' to '.$data['state_two'],
						'state_one'	=> NULL,
						'state_two'	=> NULL,
						'incversion'	=> False
					)
				);
			}

			if ($data['operation'] == VFS_OPERATION_MOVED)
			{
				$state_one_path_parts = $this->path_parts (array(
						'string'	=> $data['state_one'],
						'relatives'	=> array (RELATIVE_NONE)
					)
				);

				$query = $GLOBALS['phpgw']->db->query ("UPDATE phpgw_vfs SET mime_type='journal-deleted' WHERE directory='".
					$GLOBALS['phpgw']->db->db_addslashes($state_one_path_parts->fake_leading_dirs_clean)."' AND name='".
					$GLOBALS['phpgw']->db->db_addslashes($state_one_path_parts->fake_name_clean)."' AND mime_type='journal'");

				/*
				   We create the file in addition to logging the MOVED operation.  This is an
				   advantage because we can now search for 'Create' to see when a file was created
				*/
				$this->add_journal (array(
						'string'	=> $data['state_two'],
						'relatives'	=> array (RELATIVE_NONE),
						'operation'	=> VFS_OPERATION_CREATED
					)
				);
			}

			/* This is the SQL query we made for THIS request, remember that one? */
			$query = $GLOBALS['phpgw']->db->query ($sql, __LINE__, __FILE__);

			/*
			   If we were to add an option of whether to keep journal entries for deleted files
			   or not, it would go in the if here
			*/
			if ($data['operation'] == VFS_OPERATION_DELETED)
			{
				$query = $GLOBALS['phpgw']->db->query ("UPDATE phpgw_vfs SET mime_type='journal-deleted' WHERE directory='".
					$GLOBALS['phpgw']->db->db_addslashes($p->fake_leading_dirs_clean)."' AND name='".
					$GLOBALS['phpgw']->db->db_addslashes($p->fake_name_clean)."' AND mime_type='journal'");
			}

			return True;
		}

		/*!
		@function flush_journal
		@abstract Flush journal entries for $string.  Used before adding $string
		@discussion flush_journal () is an internal function and should be called from add_journal () only
		@param string File/directory to flush journal entries of
		@param relatives Realtivity array
		@param deleteall Delete all types of journal entries, including the active Create entry.
				  Normally you only want to delete the Create entry when replacing the file
				  Note that this option does not effect $deleteonly
		@param deletedonly Only flush 'journal-deleted' entries (created when $string was deleted)
		@result Boolean True/False
		*/
		function flush_journal ($data)
		{
		/*
			if (!is_array ($data))
			{
				$data = array ();
			}

			$default_values = array
				(
					'relatives'	=> array (RELATIVE_CURRENT),
					'deleteall'	=> False,
					'deletedonly'	=> False
				);

			$data = array_merge ($this->default_values ($data, $default_values), $data);

			$p = $this->path_parts (array(
					'string'	=> $data['string'],
					'relatives'	=> array ($data['relatives'][0])
				)
			);

			$sql = "DELETE FROM phpgw_vfs WHERE directory='".
				$GLOBALS['phpgw']->db->db_addslashes($p->fake_leading_dirs_clean)."' AND name='".
				$GLOBALS['phpgw']->db->db_addslashes($p->fake_name_clean)."'";

			if (!$data['deleteall'])
			{
				$sql .= " AND (mime_type != 'journal' AND comment != 'Created')";
			}

			$sql .= "  AND (mime_type='journal-deleted'";

			if (!$data['deletedonly'])
			{
				$sql .= " OR mime_type='journal'";
			}

			$sql .= ")";

			$query = $GLOBALS['phpgw']->db->query ($sql, __LINE__, __FILE__);

			if ($query)
			{
				return True;
			}
			else
			{
				return False;
			}
			*/
		}


		/*!
		@function get_id_from_path
		@abstract Given a Directory and file name, finds the correspondent
		   file_id
		@param $directory string
		@param $name string
		@result int the file_id in repository
		*/
		function get_id_from_path($directory,$name)
		{
			$where = array(
				'directory' => $directory,
				'name' => $name
			);

			$this->db->select('phpgw_vfs2_files','file_id',$where,
				__LINE__,__FILE__);
	
			if ($this->db->next_record())
			{
				return $this->db->Record['file_id'];
			}

			return false;
		}
		
		//the inverse way of $this->get_id_from_path
		function get_path_from_id($id)
		{
			$where = array(
				'file_id' => $id
			);

			$this->db->select('phpgw_vfs2_files','directory,name',$where,
				__LINE__,__FILE__);
	
			if ($this->db->next_record())
			{
				return $this->db->Record['directory'].'/'.$this->db->Record['name'];
			}

			return false;
		}

		/*
		 * See vfs_shared
		 */
		function get_journal ($data)
		{
			if (!is_array ($data))
			{
				$data = array ();
			}

			$default_values = array
				(
					'relatives'	=> array (RELATIVE_CURRENT),
					'type'	=> False
				);

			$data = array_merge ($this->default_values ($data, $default_values), $data);

			$p = $this->path_parts (array(
					'string'	=> $data['string'],
					'relatives'	=> array ($data['relatives'][0])
				)
			);

			if (!$this->acl_check (array(
					'string' => $p->fake_full_path,
					'relatives' => array ($p->mask)
				)))
			{
				return False;
			}

			//find the file_id from a file based on directory and name
			$file_id = $this->get_id_from_path($p->fake_leading_dirs_clean,$p->fake_name_clean);


			if ($file_id === false)
			{
				return false;
			}
			return $this->vfs_versionsystem->get_journal($file_id);
		}

		/*
		 * See vfs_shared
		 */
		function acl_check ($data)
		{
			if (!is_array ($data))
			{
				$data = array ();
			}

			$default_values = array
				(
					'relatives'	=> array (RELATIVE_CURRENT),
					'operation'	=> PHPGW_ACL_READ,
					'must_exist'	=> False
				);

			$data = array_merge ($this->default_values ($data, $default_values), $data);

			/* Accommodate special situations */
			if ($this->override_acl || $data['relatives'][0] == RELATIVE_USER_APP)
			{
				return True;
			}

			if (!$data['owner_id'])
			{
				$p = $this->path_parts (array(
						'string'	=> $data['string'],
						'relatives'	=> array ($data['relatives'][0])
					)
				);

				/* Temporary, until we get symlink type files set up */
				if ($p->outside)
				{
					return True;
				}

				/* Read access is always allowed here, but nothing else is */
				if ($data['string'] == '/' || $data['string'] == $this->fakebase)
				{
					if ($data['operation'] == PHPGW_ACL_READ)
					{
						return True;
					}
					else
					{
						return False;
					}
				}

				/* If the file doesn't exist, we get ownership from the parent
				 * directory */
				if (!$this->file_exists (array(
						'string'	=> $p->fake_full_path,
						'relatives'	=> array ($p->mask)
					))
				)
				{
					if ($data['must_exist'])
					{
						return False;
					}

					$data['string'] = $p->fake_leading_dirs;
					$p2 = $this->path_parts (array(
							'string'	=> $data['string'],
							'relatives'	=> array ($p->mask)
						)
					);

					if (!$this->file_exists (array(
							'string'	=> $data['string'],
							'relatives'	=> array ($p->mask)
						))
					)
					{
						return False;
					}
				}
				else
				{
					$p2 = $p;
				}

				/*
				   We don't use ls () to get owner_id as we normally would,
				   because ls () calls acl_check (), which would create an infinite loop
				*/
				$query = $GLOBALS['phpgw']->db->query ("SELECT owner_id FROM phpgw_vfs2_files WHERE directory='".
					$GLOBALS['phpgw']->db->db_addslashes($p2->fake_leading_dirs_clean)."' AND name='".
					$GLOBALS['phpgw']->db->db_addslashes($p2->fake_name_clean)."'" . $this->extra_sql (array ('query_type' => VFS_SQL_SELECT)), __LINE__, __FILE__);
				$GLOBALS['phpgw']->db->next_record ();

				$owner_id = $GLOBALS['phpgw']->db->Record['owner_id'];
			}
			else
			{
				$owner_id = $data['owner_id'];
			}

			/* This is correct.  The ACL currently doesn't handle undefined values correctly */
			if (!$owner_id)
			{
				$owner_id = 0;
			}

			$user_id = $GLOBALS['phpgw_info']['user']['account_id'];

			/* They always have access to their own files */
			if ($owner_id == $user_id)
			{
				return True;
			}

			//find file id

	

			#viniciuscb: rethink the group files role and working schema
			/* Check if they're in the group */
			$memberships = $GLOBALS['phpgw']->accounts->membership ($user_id);

			if (is_array ($memberships))
			{
				foreach ($memberships as $group_array)
				{
					if ($owner_id == $group_array['account_id'])
					{
						$group_ok = 1;
						break;
					}
				}
			}

			$acl = CreateObject ('phpgwapi.acl', $owner_id);
			$acl->account_id = $owner_id;
			$acl->read_repository ();

#			$rights = $acl->get_rights ($user_id);

			/* Add privileges from the groups this user belongs to */
#			if (is_array ($memberships))
#			{
#				foreach ($memberships as $group_array)
#				{
#					$rights |= $acl->get_rights ($group_array['account_id']);
#				}
#			}

			$file_id = $this->get_file_id(array(
				'string'    => $p2->fake_full_path,
				'relatives' => array($p2->mask)));

			$rights = $this->vfs_sharing->get_file_permissions($user_id,$file_id);
			if ($rights & $data['operation'])
			{
				return True;
			}
			elseif (!$rights && $group_ok)
			{
				$conf = CreateObject('phpgwapi.config', 'phpgwapi');
				$conf->read_repository();
				if ($conf->config_data['acl_default'] == 'grant')
				{
					return True;
				}
				else
				{
					return False;
				}
			}
			else
			{
				return False;
			}
		}

		/*
		 * See vfs_shared
		 */
		function read ($data)
		{
			if (!is_array ($data))
			{
				$data = array ();
			}

			$default_values = array
				(
					'relatives'	=> array (RELATIVE_CURRENT)
				);

			$data = array_merge ($this->default_values ($data, $default_values), $data);

			$p = $this->path_parts (array(
					'string'	=> $data['string'],
					'relatives'	=> array ($data['relatives'][0])
				)
			);

			if (!$this->acl_check (array(
					'string'	=> $p->fake_full_path,
					'relatives'	=> array ($p->mask),
					'operation'	=> PHPGW_ACL_READ
				))
			)
			{
				return False;
			}

			$conf = CreateObject('phpgwapi.config', 'phpgwapi');
			$conf->read_repository();
			if ($this->file_actions || $p->outside)
			{
				if ($fp = fopen ($p->real_full_path, 'rb'))
				{
					$contents = fread ($fp, filesize ($p->real_full_path));
					fclose ($fp);
				}
				else
				{
					$contents = False;
				}
			}
			else
			{
				$ls_array = $this->ls (array(
						'string'	=> $p->fake_full_path,
						'relatives'	=> array ($p->mask),
					)
				);

				$contents = $ls_array[0]['content'];
			}

			return $contents;
		}

		/*
		 * See vfs_shared
		 */
		function write ($data)
		{
			if (!is_array ($data))
			{
				$data = array ();
			}

			$default_values = array
				(
					'relatives'	=> array (RELATIVE_CURRENT),
					'content'	=> ''
				);

			$data = array_merge ($this->default_values ($data, $default_values), $data);

			$p = $this->path_parts (array(
					'string'	=> $data['string'],
					'relatives'	=> array ($data['relatives'][0])
				)
			);

			if ($this->file_exists (array (
					'string'	=> $p->fake_full_path,
					'relatives'	=> array ($p->mask)
				))
			)
			{
				$acl_operation = PHPGW_ACL_EDIT;
				$journal_operation = VFS_OPERATION_EDITED;
			}
			else
			{
				$acl_operation = PHPGW_ACL_ADD;
			}

			if (!$this->acl_check (array(
					'string'	=> $p->fake_full_path,
					'relatives'	=> array ($p->mask),
					'operation'	=> $acl_operation
				))
			)
			{
				return False;
			}

			umask(0177);

			/*
			 * If 'string' doesn't exist, touch () creates both the file and
			 * the database entry If 'string' does exist, touch () sets the
			 * modification time and modified by
			*/
			$this->touch (array(
					'string'	=> $p->fake_full_path,
					'relatives'	=> array ($p->mask)
				)
			);

			$conf = CreateObject('phpgwapi.config', 'phpgwapi');
			$conf->read_repository();


			$file_id = $this->get_id_from_path($p->fake_leading_dirs_clean,$p->fake_name_clean);

			//Saves a snapshot in the journal
			if ($journal_operation)
			{
				$this->vfs_versionsystem->save_snapshot($file_id,$journal_operation);
			}

			if ($this->file_actions)
			{
				if ($fp = fopen ($p->real_full_path, 'wb'))
				{
					fwrite ($fp, $data['content'], strlen ($data['content']));
					fclose ($fp);
					$write_ok = 1;
				}
			}

			if ($write_ok || !$this->file_actions)
			{

				
				if ($this->file_actions)
				{
					$set_attributes_array = array(
						'size' => filesize ($p->real_full_path)
					);
				}
				else
				{
					$set_attributes_array = array (
						'size'	=> strlen ($data['content']),
						'content'	=> $data['content']
					);
				}

				if ($journal_operation)
				{
					$this->vfs_versionsystem->commit($file_id);
				}



				$this->set_attributes (array(
					'string'	=> $p->fake_full_path,
					'relatives'	=> array ($p->mask),
					'attributes'	=> $set_attributes_array
				));

				return True;
			}
			else
			{
				return False;
			}
		}

		/*
		 * See vfs_shared
		 */
		function touch ($data)
		{
			if (!is_array ($data))
			{
				$data = array ();
			}

			$default_values = array(
				'relatives'	=> array (RELATIVE_CURRENT)
			);

			$data = array_merge ($this->default_values ($data, $default_values), $data);

			$account_id = $GLOBALS['phpgw_info']['user']['account_id'];
			$currentapp = $GLOBALS['phpgw_info']['flags']['currentapp'];

			$p = $this->path_parts (array(
				'string'	=> $data['string'],
				'relatives'	=> array ($data['relatives'][0])
			));

			umask (0177);

			if ($this->file_actions)
			{
				/*
				   PHP's touch function will automatically decide whether to
				   create the file or set the modification time
				*/
				$rr = @touch ($p->real_full_path);

				if ($p->outside)
				{
					return $rr;
				}
			}

			/* We, however, have to decide this ourselves */
			if ($this->file_exists (array(
					'string'	=> $p->fake_full_path,
					'relatives'	=> array ($p->mask)
				))
			)
			{
				if (!$this->acl_check (array(
						'string'	=> $p->fake_full_path,
						'relatives'	=> array ($p->mask),
						'operation'	=> PHPGW_ACL_EDIT
					)))
				{
					return False;
				}

				$vr = $this->set_attributes (array(
						'string'	=> $p->fake_full_path,
						'relatives'	=> array ($p->mask),
						'attributes'	=> array(
									'modifiedby_id' => $account_id,
									'modified' => $this->now
								)
						)
					);
			}
			else
			{
				if (!$this->acl_check (array(
						'string'	=> $p->fake_full_path,
						'relatives'	=> array ($p->mask),
						'operation'	=> PHPGW_ACL_ADD
					))
				)
				{
					return False;
				}

				//TODO VCB insert other fields

				$insert_data = array(
					'owner_id' => $this->working_id,
					'directory' => $p->fake_leading_dirs_clean,
					'name' => $p->fake_name_clean
				);

				$query = $this->db->insert('phpgw_vfs2_files',$insert_data,$insert_data,__LINE__,__FILE__);

				$file_id = $this->get_id_from_path($p->fake_leading_dirs_clean,$p->fake_name_clean);

				$this->vfs_versionsystem->create_initial_version($file_id);

				$this->set_attributes(array(
					'string'	=> $p->fake_full_path,
					'relatives'	=> array ($p->mask),
					'attributes'	=> array (
								'createdby_id' => $account_id,
								'created' => $this->now,
								'size' => 0,
								'deleteable' => 'Y',
								'app' => $currentapp
							)
					)
				);

				$this->correct_attributes (array(
						'string'	=> $p->fake_full_path,
						'relatives'	=> array ($p->mask)
					)
				);
			}

			if ($rr || $vr || $query)
			{
				return True;
			}
			else
			{
				return False;
			}
		}

		/*
		 * See vfs_shared
		 * If $data['symlink'] the file is symlinked instead of copied
		 */
		function cp ($data)
		{
			#echo "<b>cp:</b>";
			#print_r($data);
			if (!is_array ($data))
			{
				$data = array ();
			}

			$default_values = array
				(
					'relatives'	=> array (RELATIVE_CURRENT, RELATIVE_CURRENT),
					'journal' => true
				);

			$data = array_merge ($this->default_values ($data, $default_values), $data);

			$account_id = $GLOBALS['phpgw_info']['user']['account_id'];

			$f = $this->path_parts (array(
					'string'	=> $data['from'],
					'relatives'	=> array ($data['relatives'][0])
				)
			);

			$t = $this->path_parts (array(
					'string'	=> $data['to'],
					'relatives'	=> array ($data['relatives'][1])
				)
			);

			if (!$this->acl_check (array(
					'string'	=> $f->fake_full_path,
					'relatives'	=> array ($f->mask),
					'operation'	=> PHPGW_ACL_READ
				))
			)
			{
				trigger_error('vfs->cp: could not copy file from '.$f->fake_full_path.' to '.$t->fake_full_path.'. Without permission to read from source location. Line '.__LINE__.', File '.__FILE__,E_USER_NOTICE);
				return False;
			}

			if ($exists = $this->file_exists (array(
					'string'	=> $t->fake_full_path,
					'relatives'	=> array ($t->mask)
				))
			)
			{
				if (!$this->acl_check (array(
						'string'	=> $t->fake_full_path,
						'relatives'	=> array ($t->mask),
						'operation'	=> PHPGW_ACL_EDIT
					))
				)
				{
					trigger_error('vfs->cp: could not copy file from '.$f->fake_full_path.' to '.$t->fake_full_path.'. Without permission to edit destination. Line '.__LINE__.', File '.__FILE__,E_USER_NOTICE);
					return False;
				}
			}
			else
			{
				if (!$this->acl_check (array(
						'string'	=> $t->fake_full_path,
						'relatives'	=> array ($t->mask),
						'operation'	=> PHPGW_ACL_ADD
					))
				)
				{

					trigger_error('vfs->cp: could not copy file from '.$f->fake_full_path.' to '.$t->fake_full_path.'. Without permission to create new file. Line '.__LINE__.', File '.__FILE__,E_USER_NOTICE);
					return False;
				}
			}

			umask(0177);

			if ($this->file_type (array(
					'string'	=> $f->fake_full_path,
					'relatives'	=> array ($f->mask)
				)) != 'Directory'
			)
			{
				if ($this->file_actions)
				{
					if (@$data['symlink'])
					{
						if ($exists)
						{
							@unlink($t->real_full_path);
						}
						if (!symlink($f->real_full_path, $t->real_full_path))
						{
							trigger_error('vfs->cp: could not copy file from '.$f->fake_full_path.' to '.$t->fake_full_path.'. Without permission to create symbolic link. Line '.__LINE__.', File '.__FILE__,E_USER_NOTICE);
							return False;
						}
					}
					elseif (!copy ($f->real_full_path, $t->real_full_path))
					{
						trigger_error('vfs->cp: could not copy file from '.$f->fake_full_path.' to '.$t->fake_full_path.'. Line '.__LINE__.', File '.__FILE__,E_USER_NOTICE);
						return False;
					}

					$size = filesize ($t->real_full_path);
				}
				else
				{
					$content = $this->read (array(
							'string'	=> $f->fake_full_path,
							'relatives'	=> array ($f->mask)
						)
					);


					$size = strlen ($content);
				}

				if ($t->outside)
				{
					return True;
				}

				$ls_array = $this->ls (array(
						'string'	=> $f->fake_full_path,
						'relatives'	=> array ($f->mask),
						'checksubdirs'	=> False,
						'mime_type'	=> False,
						'nofiles'	=> True
					)
				);
				$record = $ls_array[0];

				if ($this->file_exists (array(
						'string'	=> $data['to'],
						'relatives'	=> array ($data['relatives'][1])
					))
				)
				{ //Overwrite

/*
					$query = $GLOBALS['phpgw']->db->query ("UPDATE phpgw_vfs SET owner_id='$this->working_id', directory='".
						$GLOBALS['phpgw']->db->db_addslashes($t->fake_leading_dirs_clean)."', name='".
						$GLOBALS['phpgw']->db->db_addslashes($t->fake_name_clean)."' WHERE owner_id='$this->working_id' AND directory='".
						$GLOBALS['phpgw']->db->db_addslashes($t->fake_leading_dirs_clean)."' AND name='".
						$GLOBALS['phpgw']->db->db_addslashes($t->fake_name_clean)."'" . $this->extra_sql (VFS_SQL_UPDATE), __LINE__, __FILE__);*/

					$ls_array_dest = $this->ls (array(
							'string'	=> $t->fake_full_path,
							'relatives'	=> array ($t->mask),
							'checksubdirs'	=> False,
							'mime_type'	=> False,
							'nofiles'	=> True
						)
					);
					$record_dest = $ls_array_dest[0];

					$this->vfs_versionsystem->save_snapshot($record_dest['file_id'],VFS_OPERATION_EDITED,'Overwritten by copy of '.$f->fake_full_path_clean);
		
					$set_attributes_array = array (
						'createdby_id' => $account_id,
						'created' => $this->now,
						'size' => $size,
						'mime_type' => $record['mime_type'],
						'deleteable' => $record['deleteable'],
						'comment' => $record['comment'],
						'app' => $record['app']
					);

					if (!$this->file_actions)
					{
						$set_attributes_array['content'] = $content;
					}

					$res = $this->set_attributes(array(
						'string'	=> $t->fake_full_path,
						'relatives'	=> array ($t->mask),
						'attributes'	=> $set_attributes_array
						)
					);

					if ($res)
						$this->vfs_versionsystem->commit($record_dest['file_id']);
				}
				else //Create a new file
				{
					$this->touch (array(
							'string'	=> $t->fake_full_path,
							'relatives'	=> array ($t->mask)
						)
					);

					$set_attributes_array = array (
						'createdby_id' => $account_id,
						'created' => $this->now,
						'size' => $size,
						'mime_type' => $record['mime_type'],
						'deleteable' => $record['deleteable'],
						'comment' => $record['comment'],
						'app' => $record['app']
					);

					if (!$this->file_actions)
					{
						$set_attributes_array['content'] = $content;
					}

					$this->set_attributes(array(
							'string'	=> $t->fake_full_path,
							'relatives'	=> array ($t->mask),
							'attributes'	=> $set_attributes_array
						)
					);
				}
				$this->correct_attributes (array(
						'string'	=> $t->fake_full_path,
						'relatives'	=> array ($t->mask)
					)
				);
			}
			else	/* It's a directory */
			{
				/* First, make the initial directory */
				$this->mkdir (array(
						'string'	=> $data['to'],
						'relatives'	=> array ($data['relatives'][1])
					)
				);

				/* Next, we create all the directories below the initial directory */
				foreach($this->ls (array(
						'string'	=> $f->fake_full_path,
						'relatives'	=> array ($f->mask),
						'checksubdirs'	=> True,
						'mime_type'	=> 'Directory'
					)) as $entry)
				{
					$newdir = ereg_replace ("^$f->fake_full_path", "$t->fake_full_path", $entry['directory']);
					$this->mkdir (array(
							'string'	=> $newdir.'/'.$entry['name'],
							'relatives'	=> array ($t->mask)
						)
					);
				}

				/* Lastly, we copy the files over */
				foreach($this->ls (array(
						'string'	=> $f->fake_full_path,
						'relatives'	=> array ($f->mask)
					)) as $entry)
				{
					if ($entry['mime_type'] == 'Directory')
					{
						continue;
					}

					$newdir = ereg_replace ("^$f->fake_full_path", "$t->fake_full_path", $entry['directory']);
					$this->cp (array(
							'from'	=> "$entry[directory]/$entry[name]",
							'to'	=> "$newdir/$entry[name]",
							'relatives'	=> array ($f->mask, $t->mask)
						)
					);
				}
			}

			if (!$f->outside)
			{

				$ls_array = $this->ls(array(
					'string'    => $f->fake_full_path,
					'relatives' => $f->mask
				));

				$file = $ls_array[0];

				$this->vfs_versionsystem->save_snapshot($file['file_id'],VFS_OPERATION_COPIED,'',array('dest' =>$t->fake_full_path));

				$this->vfs_versionsystem->commit();

			}

			return True;
		}


		/*
		 * See vfs_shared
		 */
		function mv ($data)
		{
			//FIXME unknown bug tricky solving (temp)
			if (!is_object($this->vfs_versionsystem))
			{
				$this->vfs_versionsystem =& $GLOBALS['object_keeper']->GetObject('phpgwapi.vfs_versionsystem');
			}

			#echo "<b>mv:</b>";
			#print_r($data);

			if (!is_array ($data))
			{
				$data = array ();
			}

			$default_values = array
				(
					'relatives'	=> array (RELATIVE_CURRENT, RELATIVE_CURRENT)
				);

			$data = array_merge ($this->default_values ($data, $default_values), $data);

			$account_id = $GLOBALS['phpgw_info']['user']['account_id'];

			$f = $this->path_parts (array(
					'string'	=> $data['from'],
					'relatives'	=> array ($data['relatives'][0])
				)
			);

			$t = $this->path_parts (array(
					'string'	=> $data['to'],
					'relatives'	=> array ($data['relatives'][1])
				)
			);

			if ($f->fake_full_path == $t->fake_full_path)
			{
				return true;
			}

			if (!$this->acl_check (array(
					'string'	=> $f->fake_full_path,
					'relatives'	=> array ($f->mask),
					'operation'	=> PHPGW_ACL_READ
				))
				|| !$this->acl_check (array(
					'string'	=> $f->fake_full_path,
					'relatives'	=> array ($f->mask),
					'operation'	=> PHPGW_ACL_DELETE
				))
			)
			{
				trigger_error('vfs->mv: could not move file from '.$f->fake_full_path.' to '.$t->fake_full_path.'. Not allowed to delete the file from its source location. Line '.__LINE__.', File '.__FILE__,E_USER_NOTICE);
				return False;
			}

			if (!$this->acl_check (array(
					'string'	=> $t->fake_full_path,
					'relatives'	=> array ($t->mask),
					'operation'	=> PHPGW_ACL_ADD
				))
			)
			{
				trigger_error('vfs->mv: could not move file from '.$f->fake_full_path.' to '.$t->fake_full_path.'. Not allowed to add a file in destination location. Line '.__LINE__.', File '.__FILE__,E_USER_NOTICE);
				return False;
			}

			if ($this->file_exists (array(
					'string'	=> $t->fake_full_path,
					'relatives'	=> array ($t->mask)
				))
			)
			{
				if (!$this->acl_check (array(
						'string'	=> $t->fake_full_path,
						'relatives'	=> array ($t->mask),
						'operation'	=> PHPGW_ACL_EDIT
					))
				)
				{
					trigger_error('vfs->mv: could not move file from '.$f->fake_full_path.' to '.$t->fake_full_path.'. Not allowed to edit existent file in destination location. Line '.__LINE__.', File '.__FILE__,E_USER_NOTICE);
					return False;
				}
			}

			umask (0177);

			/* We can't move directories into themselves */
			if (($this->file_type (array(
					'string'	=> $f->fake_full_path,
					'relatives'	=> array ($f->mask)
				) == 'Directory'))
				&& ereg ("^$f->fake_full_path", $t->fake_full_path)
			)
			{
				if (($t->fake_full_path == $f->fake_full_path) || substr ($t->fake_full_path, strlen ($f->fake_full_path), 1) == '/')
				{
					trigger_error('vfs->mv: could not move file from '.$f->fake_full_path.' to '.$t->fake_full_path.'. Trying to write in invalid location. Line '.__LINE__.', File '.__FILE__,E_USER_NOTICE);
					return False;
				}
			}

			if ($this->file_exists (array(
					'string'	=> $f->fake_full_path,
					'relatives'	=> array ($f->mask)
				))
			)
			{

				/* We get the listing now, because it will change after we update the database */
				$ls = $this->ls (array(
						'string'	=> $f->fake_full_path,
						'relatives'	=> array ($f->mask)
					)
				);

				//to the new version system.
				$ls_fileonly = $this->ls(array(
					'string'      => $f->fake_full_path,
					'relatives'   => array ($f->mask),
					'checksudirs' => false,
					'nofiles'     => true
				));


				$this->vfs_versionsystem->save_snapshot(
					$ls_fileonly[0]['file_id'],VFS_OPERATION_MOVED,
					'Moved from '.$f->fake_full_path.' to '.$t->fake_full_path,
					array('dest' => $t->fake_full_path));

				if ($this->file_exists (array(
						'string'	=> $t->fake_full_path,
						'relatives'	=> array ($t->mask)
					))
				)
				{
					$this->rm (array(
							'string'	=> $t->fake_full_path,
							'relatives'	=> array ($t->mask)
						)
					);
				}

				/*
				 *  We add the journal entry now, before we delete.  This way
				 *  the mime_type field will be updated to 'journal-deleted'
				 *  when the file is actually deleted
				 */
				if (!$f->outside)
				{
					//add_journal was here			
				}

				/*
				   If the from file is outside, it won't have a database entry,
				   so we have to touch it and find the size
				*/
				if ($f->outside)
				{
					$size = filesize ($f->real_full_path);

					$this->touch (array(
							'string'	=> $t->fake_full_path,
							'relatives'	=> array ($t->mask)
						)
					);
					$query = $GLOBALS['phpgw']->db->query ("UPDATE phpgw_vfs2_files SET size=$size WHERE directory='".
						$GLOBALS['phpgw']->db->db_addslashes($t->fake_leading_dirs_clean)."' AND name='".
						$GLOBALS['phpgw']->db->db_addslashes($t->fake_name_clean)."'" . $this->extra_sql (array ('query_type' => VFS_SQL_UPDATE)), __LINE__, __FILE__);
				}
				elseif (!$t->outside)
				{

					$query = $GLOBALS['phpgw']->db->query ("UPDATE phpgw_vfs2_files SET name='".
						$GLOBALS['phpgw']->db->db_addslashes($t->fake_name_clean)."', directory='".
						$GLOBALS['phpgw']->db->db_addslashes($t->fake_leading_dirs_clean)."' WHERE directory='".
						$GLOBALS['phpgw']->db->db_addslashes($f->fake_leading_dirs_clean)."' AND name='".
						$GLOBALS['phpgw']->db->db_addslashes($f->fake_name_clean)."'" . $this->extra_sql (array ('query_type' => VFS_SQL_UPDATE)), __LINE__, __FILE__);
				}


/*				$this->set_attributes(array(
						'string'	=> $t->fake_full_path,
						'relatives'	=> array ($t->mask),
						'attributes'	=> array (
									'modifiedby_id' => $account_id,
									'modified' => $this->now
								)
					)
				);*/

/*				$this->correct_attributes (array(
						'string'	=> $t->fake_full_path,
						'relatives'	=> array ($t->mask)
					)
				);*/

				if ($this->file_actions)
				{
					$rr = rename ($f->real_full_path, $t->real_full_path);
				}

				/*
				   This removes the original entry from the database The actual
				   file is already deleted because of the rename () above
				*/
				if ($t->outside)
				{
					$this->rm (array(
							'string'	=> $f->fake_full_path,
							'relatives'	=> $f->mask
						)
					);
				}
				
			}
			else
			{
				trigger_error('vfs->mv: could not move file from '.$f->fake_full_path.' to '.$t->fake_full_path.'. Source file not found. Line '.__LINE__.', File '.__FILE__,E_USER_NOTICE);
				return False;
			}
			
			if ($this->file_type (array(
					'string'	=> $t->fake_full_path,
					'relatives'	=> array ($t->mask)
				)) == 'Directory'
			)
			{
				/* We got $ls from above, before we renamed the directory */
				foreach ($ls as $entry)
				{
					$newdir = ereg_replace ("^$f->fake_full_path", $t->fake_full_path, $entry['directory']);
					$newdir_clean = $this->clean_string (array ('string' => $newdir));

					$query = $GLOBALS['phpgw']->db->query ("UPDATE phpgw_vfs2_files SET directory='".
						$GLOBALS['phpgw']->db->db_addslashes($newdir_clean)."' WHERE file_id='$entry[file_id]'" .
						$this->extra_sql (array ('query_type' => VFS_SQL_UPDATE)), __LINE__, __FILE__);
					$this->correct_attributes (array(
							'string'	=> "$newdir/$entry[name]",
							'relatives'	=> array ($t->mask)
						)
					);
				}

			}


			$this->vfs_versionsystem->commit($ls_fileonly[0]['file_id']);

/*			$this->add_journal (array(
					'string'	=> $t->fake_full_path,
					'relatives'	=> array ($t->mask),
					'operation'	=> VFS_OPERATION_MOVED,
					'state_one'	=> $f->fake_full_path,
					'state_two'	=> $t->fake_full_path
				)
			);*/
			return True;
		}

		/*
		 * See vfs_shared
		 */
		function rm ($data)
		{
			if (!is_array ($data))
			{
				$data = array ();
			}

			$default_values = array
				(
					'relatives'	=> array (RELATIVE_CURRENT)
				);

			$data = array_merge ($this->default_values ($data, $default_values), $data);

			$p = $this->path_parts (array(
					'string'	=> $data['string'],
					'relatives'	=> array ($data['relatives'][0])
				)
			);

			if (!$this->acl_check (array(
					'string'	=> $p->fake_full_path,
					'relatives'	=> array ($p->mask),
					'operation'	=> PHPGW_ACL_DELETE
				))
			)
			{
				return False;
			}

			if (!$this->file_exists (array(
					'string'	=> $data['string'],
					'relatives'	=> array ($data['relatives'][0])
				))
			)
			{
				if ($this->file_actions)
				{
					$rr = unlink ($p->real_full_path);
				}
				else
				{
					$rr = True;
				}

				if ($rr)
				{
					return True;
				}
				else
				{
					return False;
				}
			}

			if ($this->file_type (array(
					'string'	=> $data['string'],
					'relatives'	=> array ($data['relatives'][0])
				)) != 'Directory'
			)
			{
				$ls_array = $this->ls(array(
					'string'    => $p->fake_full_path_clean,
					'relatives' => $p->mask
				));

				$file = $ls_array[0];
	
				$this->vfs_versionsystem->save_snapshot($file['file_id'],VFS_OPERATION_DELETED);

				$query = $GLOBALS['phpgw']->db->query ("DELETE FROM phpgw_vfs2_files WHERE directory='".
					$GLOBALS['phpgw']->db->db_addslashes($p->fake_leading_dirs_clean)."' AND name='".
					$GLOBALS['phpgw']->db->db_addslashes($p->fake_name_clean)."'".$this->extra_sql (array ('query_type' => VFS_SQL_DELETE)), __LINE__, __FILE__);

				if ($query)
					$this->vfs_versionsystem->commit($file['file_id']);

				if ($this->file_actions)
				{
					$rr = unlink ($p->real_full_path);
				}
				else
				{
					$rr = True;
				}

				if ($query || $rr)
				{
					return True;
				}
				else
				{
					return False;
				}
			}
			else
			{
				$ls = $this->ls (array(
						'string'	=> $p->fake_full_path,
						'relatives'	=> array ($p->mask)
					)
				);

				/* First, we cycle through the entries and delete the files */
				foreach($ls as $entry)
				{
					if ($entry['mime_type'] == 'Directory')
					{
						continue;
					}

					$this->rm (array(
							'string'	=> "$entry[directory]/$entry[name]",
							'relatives'	=> array ($p->mask)
						)
					);
				}

				/* Now we cycle through again and delete the directories */
				foreach ($ls as $entry)
				{
					if ($entry['mime_type'] != 'Directory')
					{
						continue;
					}

					/* Only the best in confusing recursion */
					$this->rm (array(
							'string'	=> "$entry[directory]/$entry[name]",
							'relatives'	=> array ($p->mask)
						)
					);
				}

				/* If the directory is linked, we delete the placeholder directory */
				$ls_array = $this->ls (array(
						'string'	=> $p->fake_full_path,
						'relatives'	=> array ($p->mask),
						'checksubdirs'	=> False,
						'mime_type'	=> False,
						'nofiles'	=> True
					)
				);
				$link_info = $ls_array[0];

				if ($link_info['link_directory'] && $link_info['link_name'])
				{
					$path = $this->path_parts (array(
							'string'	=> $link_info['directory'] . '/' . $link_info['name'],
							'relatives'	=> array ($p->mask),
							'nolinks'	=> True
						)
					);

					if ($this->file_actions)
					{
						rmdir ($path->real_full_path);
					}
				}

				$file = $link_info;
	
				$this->vfs_versionsystem->save_snapshot($file['file_id'],VFS_OPERATION_DELETED);

				$query = $GLOBALS['phpgw']->db->query ("DELETE FROM phpgw_vfs2_files WHERE directory='".
					$GLOBALS['phpgw']->db->db_addslashes($p->fake_leading_dirs_clean)."' AND name='".
					$GLOBALS['phpgw']->db->db_addslashes($p->fake_name_clean)."'" .
					$this->extra_sql (array ('query_type' => VFS_SQL_DELETE)), __LINE__, __FILE__);

				if ($query)
					$this->vfs_versionsystem->commit();

				if ($this->file_actions)
				{
					rmdir ($p->real_full_path);
				}

				return True;
			}
		}

		/*
		 * See vfs_shared
		 */
		function mkdir ($data)
		{
			if (!is_array ($data))
			{
				$data = array ();
			}

			$default_values = array
				(
					'relatives'	=> array (RELATIVE_CURRENT)
				);

			$data = array_merge ($this->default_values ($data, $default_values), $data);

			$account_id = $GLOBALS['phpgw_info']['user']['account_id'];
			$currentapp = $GLOBALS['phpgw_info']['flags']['currentapp'];

			$p = $this->path_parts (array(
					'string'	=> $data['string'],
					'relatives'	=> array ($data['relatives'][0])
				)
			);

			if (!$this->acl_check (array(
					'string'	=> $p->fake_full_path,
					'relatives'	=> array ($p->mask),
					'operation'	=> PHPGW_ACL_ADD)
				)
			)
			{
				echo "can't create dir ".$p->fake_full_path." due to permissions.";
				return False;
			}

			/* We don't allow /'s in dir names, of course */
			if (ereg ("/", $p->fake_name))
			{
				return False;
			}

			umask (077);

			if ($this->file_actions)
			{
				if (!@is_dir($p->real_leading_dirs_clean))	// eg. /home or /group does not exist
				{
					if (!@mkdir($p->real_leading_dirs_clean,0770))	// ==> create it
					{
						return False;
					}
				}	

				if (@is_dir($p->real_full_path))	// directory already exists
				{
					$this->update_real($data,True);		// update its contents
				}
				elseif (!@mkdir ($p->real_full_path, 0770))
				{
					return False;
				}
			}

			if (!$this->file_exists (array(
					'string'	=> $p->fake_full_path,
					'relatives'	=> array ($p->mask)
				))
			)
			{
				$query = $GLOBALS['phpgw']->db->query ("INSERT INTO phpgw_vfs2_files (owner_id, name, directory) VALUES ($this->working_id, '".
					$GLOBALS['phpgw']->db->db_addslashes($p->fake_name_clean)."', '".
					$GLOBALS['phpgw']->db->db_addslashes($p->fake_leading_dirs_clean)."')", __LINE__, __FILE__);
	
				$this->set_attributes(array(
					'string'	=> $p->fake_full_path,
					'relatives'	=> array ($p->mask),
					'attributes'	=> array (
								'createdby_id' => $account_id,
								'size' => 4096,
								'mime_type' => 'Directory',
								'created' => $this->now,
								'deleteable' => 'Y',
								'app' => $currentapp
							)
					)
				);

				$this->correct_attributes (array(
						'string'	=> $p->fake_full_path,
						'relatives'	=> array ($p->mask)
					)
				);

				//Get info to the versionsystem
				$res = $this->ls(array(
					'string'    => $p->fake_full_path_clean,
					'relatives' => $p->mask
				));

				$file = $res[0];

				$this->vfs_versionsystem->create_initial_version($file['file_id']);


			}
			else
			{
				return False;
			}

			return True;
		}

		/*
		 * See vfs_shared
		 */
		function make_link ($data)
		{
			if (!is_array ($data))
			{
				$data = array ();
			}

			$default_values = array
				(
					'relatives'	=> array (RELATIVE_CURRENT, RELATIVE_CURRENT)
				);

			$data = array_merge ($this->default_values ($data, $default_values), $data);

			$account_id = $GLOBALS['phpgw_info']['user']['account_id'];
			$currentapp = $GLOBALS['phpgw_info']['flags']['currentapp'];

			$vp = $this->path_parts (array(
					'string'	=> $data['vdir'],
					'relatives'	=> array ($data['relatives'][0])
				)
			);

			$rp = $this->path_parts (array(
					'string'	=> $data['rdir'],
					'relatives'	=> array ($data['relatives'][1])
				)
			);

			if (!$this->acl_check (array(
					'string'	=> $vp->fake_full_path,
					'relatives'	=> array ($vp->mask),
					'operation'	=> PHPGW_ACL_ADD
				))
			)
			{
				return False;
			}


			if ((!$this->file_exists (array(
					'string'	=> $rp->real_full_path,
					'relatives'	=> array ($rp->mask)
				)))
				&& !mkdir ($rp->real_full_path, 0770))
			{
				return False;
			}

			if (!$this->mkdir (array(
					'string'	=> $vp->fake_full_path,
					'relatives'	=> array ($vp->mask)
				))
			)
			{
				return False;
			}

			$size = $this->get_size (array(
					'string'	=> $rp->real_full_path,
					'relatives'	=> array ($rp->mask)
				)
			);

			$this->set_attributes(array(
					'string'	=> $vp->fake_full_path,
					'relatives'	=> array ($vp->mask),
					'attributes'	=> array (
								'link_directory' => $rp->real_leading_dirs,
								'link_name' => $rp->real_name,
								'size' => $size
							)
				)
			);

			$this->correct_attributes (array(
					'string'	=> $vp->fake_full_path,
					'relatives'	=> array ($vp->mask)
				)
			);

			return True;
		}

		/*
		 * See vfs_shared
		 */
		//upd 2004-09-16 viniciuscb: custom fields support
		//upd 2004-10-11 viniciuscb: proper_id for file: accepts:
		//               $data['proper_id'], for an all-ready proper id, else
		//               $data['prefix'] for a string with the prefix
		//                  (this can only be used if no proper_id 
		//                   specified now or before)
		//               $data['ptype'] For a specification of file type
		//               $data['prefix_type'] (FUTURE)
		//               if none specified, prefix will be user_lid
		function set_attributes ($data)
		{
			if (!is_array ($data))
			{
				$data = array ();
			}

			$default_values = array
				(
					'relatives'	=> array (RELATIVE_CURRENT),
					'attributes'	=> array ()
				);

			$data = array_merge ($this->default_values ($data, $default_values), $data);

			$p = $this->path_parts (array(
					'string'	=> $data['string'],
					'relatives'	=> array ($data['relatives'][0])
				)
			);

			/*
			 * This is kind of trivial, given that set_attributes () can change
			 * owner_id, size, etc.
			*/
			if (!$this->acl_check (array(
					'string'	=> $p->fake_full_path,
					'relatives'	=> array ($p->mask),
					'operation'	=> PHPGW_ACL_EDIT
				))
			)
			{
				return False;
			}

			if (!$this->file_exists (array(
					'string'	=> $data['string'],
					'relatives'	=> array ($data['relatives'][0])
				))
			)
			{
				return False;
			}

			/*
			 * All this voodoo just decides which attributes to update
			 * depending on if the attribute was supplied in the 'attributes'
			 * array
			*/

			$ls_array = $this->ls (array(
					'string'	=> $p->fake_full_path,
					'relatives'	=> array ($p->mask),
					'checksubdirs'	=> False,
					'nofiles'	=> True
				)
			);
			$record = $ls_array[0];

			//handles mime type

			/* FIXME is mime_type is application/octet-stream, don't believe
			 * in passed mime_type and try to find a mime type based in 
			 * extension */
			/* TODO use mime magic capabilities */
			$mime_id = '';
			if ($data['attributes']['mime_type'] && $data['attributes']['mime_type'] != 'application/octet-stream')
			{
				$mime_data = array (
					'mime' => $data['attributes']['mime_type']
				);

				if (!$type = $this->vfs_mimetypes->get_type($mime_data))
				{
					$mime_data['extension'] = @$this->get_file_extension($data['string']);

					$type = $this->vfs_mimetypes->add_filetype($mime_data);

				}
			}
			//try to find a compatible mime/type based in file extension
			else
			{

				$mime_data = array (
					'extension' => @$this->get_file_extension($data['string'])
				);

				if (!$type = $this->vfs_mimetypes->get_type($mime_data))
				{
					$type = $this->vfs_mimetypes->add_filetype($mime_data);

				}

				/* Finally if the file has no extension and no mime (or mime
				 * defined as application/octet-stream, will consider file type
				 * as application/octet-stream 
				 */
				if (!$type)
				{
					$type = $this->vfs_mimetypes->get_type(array(
						'mime' => 'application/octet-stream'
					));
				}

			}

			//will only change mime_type if mime_type was specified in attribts
			if ($data['attributes']['mime_type'])
			{
				unset($data['attributes']['mime_type']);
				$data['attributes']['mime_id'] = $type['mime_id'];
			}

			/*
			   Indicate that the EDITED_COMMENT operation needs to be journaled,
			   but only if the comment changed
			*/
			if (array_key_exists('comment',$data['attributes']) &&
				 $data['attributes']['comment'] != $record['comment'])
			{
				$edited_comment = 1;
			}

			#** proper id treating **
			
			#1.User does not specified proper_id, and file had not any proper id
			#generates a new proper_id
			if(!$data['attributes']['proper_id'] && $data['attributes']['prefix'])
			{
				$prefix = $data['attributes']['prefix'];

//				$data['attributes']['proper_id'] = $this->generate_proper_id($data['attributes']['prefix'],$type['proper_id']);
				$data['attributes']['proper_id'] = $this->generate_proper_id($data['attributes']['prefix'],$data['attributes']['ptype']);
			}
			#2.User specified proper_id
			#check if this id is not being used. If it is, do not change.
			elseif ($data['attributes']['proper_id'])
			{
				$this->db->select('phpgw_vfs2_files','proper_id',array('proper_id'=>$data['attributes']['proper_id']));

				if ($this->db->next_record())
				{
					unset($data['attributes']['proper_id']);
				}

			}

			//To be sure that olny fields from phpgw_vfs2_files will be inserted
			$update_data = array();
			foreach ($data['attributes'] as $key => $val)
			{
				if ($this->attribute_tables[$key] == 'phpgw_vfs2_files' || $key == 'mime_id')
					$update_data[$key] = $val;
			}

			$where = array(
				'file_id' => $record['file_id']
			);

			if ($edited_comment)
			{
				$this->vfs_versionsystem->save_snapshot($record['file_id'],
					VFS_OPERATION_EDITED_COMMENT);
			}

			if (count($update_data)) //if false, there is nothing to do
			{
				$res = $this->db->update('phpgw_vfs2_files',$update_data,$where,
					__LINE__,__FILE__);

				if ($res) 
				{
					//custom fields storing
					$customfields = $this->vfs_customfields->get_customfields('customfield_name');
					foreach ($customfields as $custom_name => $custom_val)
					{
						if (array_key_exists($custom_name,$data['attributes']))
						{
							$store_array[$record['file_id']][$custom_name] = $data['attributes'][$custom_name];

						}
					}

					if ($store_array)
					{
						$this->vfs_customfields->store_fields($store_array);
					}
				
					if ($edited_comment)
					{
						$this->vfs_versionsystem->commit($record['file_id']);
					}
					return True;
				}
			}
			return false;
		}

		/*!
		@function correct_attributes
		@abstract Set the correct attributes for 'string' (e.g. owner)
		@param string File/directory to correct attributes of
		@param relatives Relativity array
		@result Boolean True/False
		*/
		function correct_attributes ($data)
		{
			if (!is_array ($data))
			{
				$data = array ();
			}

			$default_values = array
				(
					'relatives'	=> array (RELATIVE_CURRENT)
				);

			$data = array_merge ($this->default_values ($data, $default_values), $data);

			$p = $this->path_parts (array(
					'string'	=> $data['string'],
					'relatives'	=> array ($data['relatives'][0])
				)
			);

			if ($p->fake_leading_dirs != $this->fakebase && $p->fake_leading_dirs != '/')
			{
				$ls_array = $this->ls (array(
						'string'	=> $p->fake_leading_dirs,
						'relatives'	=> array ($p->mask),
						'checksubdirs'	=> False,
						'nofiles'	=> True
					)
				);
				$set_attributes_array = Array(
					'owner_id' => $ls_array[0]['owner_id']
				);
			}
			elseif (preg_match ("+^$this->fakebase\/(.*)$+U", $p->fake_full_path, $matches))
			{
				$set_attributes_array = Array(
					'owner_id' => $GLOBALS['phpgw']->accounts->name2id ($matches[1])
				);
			}
			else
			{
				$set_attributes_array = Array(
					'owner_id' => 0
				);
			}

			$this->set_attributes (array(
					'string'	=> $p->fake_full_name,
					'relatives'	=> array ($p->mask),
					'attributes'	=> $set_attributes_array
				)
			);

			return True;
		}

		/*
		 * See vfs_shared
		 */
		function file_type ($data)
		{
			if (!is_array ($data))
			{
				$data = array ();
			}

			$default_values = array
				(
					'relatives'	=> array (RELATIVE_CURRENT)
				);

			$data = array_merge ($this->default_values ($data, $default_values), $data);

			$p = $this->path_parts (array(
					'string'	=> $data['string'],
					'relatives'	=> array ($data['relatives'][0])
				)
			);

			if (!$this->acl_check (array(
					'string'	=> $p->fake_full_path,
					'relatives'	=> array ($p->mask),
					'operation'	=> PHPGW_ACL_READ,
					'must_exist'	=> True
				))
			)
			{
				return False;
			}

			if ($p->outside)
			{
				if (is_dir ($p->real_full_path))
				{
					return ('Directory');
				}

				/*
				   We don't return an empty string here, because it may still
				   match with a database query because of linked directories
				*/
			}

			/*
			   We don't use ls () because it calls file_type () to determine if
			   it has been passed a directory
			*/

			//TODO VCB change this also with filetypes class

			$db2 = $GLOBALS['phpgw']->db;

			$db2->query ("SELECT mime_id 
			              FROM   phpgw_vfs2_files
			              WHERE  directory='".$db2->db_addslashes($p->fake_leading_dirs_clean)."' 
			               AND   name='".$db2->db_addslashes($p->fake_name_clean)."'", __LINE__, __FILE__); 
			$db2->next_record ();

			$file_record = $db2->Record;

			$mime = $this->vfs_mimetypes->get_type(array(
				'mime_id' => $file_record['mime_id']
			));

			$mime_type = $mime['mime'];

			if(!$mime_type)
			{
				$extension = $this->get_file_extension($p->fake_name_clean);
				
				if (!$res = $this->vfs_mimetypes->get_type(array(
						'extension' => $extension)) )
				{
					$res = $this->vfs_mimetypes->add_filetype(array(
						'extension' => $extension)); 

					if ($res)
					{
						$this->db->update('phpgw_vfs2_files',
							array('mime_id'   => $res['mime_id']),
							array('directory' => $p->fake_leading_dirs_clean,
								  'name'      => $p->fake_name_clean
							),__LINE__,__FILE__);
					}
							
				}
				$mime_type = $res['mime'];

			}

			return $mime_type;
		}

		/*
		 * See vfs_shared
		 */
		function file_exists ($data)
		{
			if (!is_array ($data))
			{
				$data = array ();
			}

			$default_values = array
				(
					'relatives'	=> array (RELATIVE_CURRENT),
					'allow_outside' => true
				);

			$data = array_merge ($this->default_values ($data, $default_values), $data);

			$p = $this->path_parts (array(
					'string'	=> $data['string'],
					'relatives'	=> array ($data['relatives'][0])
				)
			);

			if ($p->outside)
			{
				if (!$data['allow_outside'])
				{
					return false;
				}
				$rr = file_exists ($p->real_full_path);

				return $rr;
			}

			//TODO id: primary field
			$db2 = $GLOBALS['phpgw']->db;
			$db2->query ("SELECT name FROM phpgw_vfs2_files WHERE directory='".
				$GLOBALS['phpgw']->db->db_addslashes($p->fake_leading_dirs_clean)."' AND name='".
				$GLOBALS['phpgw']->db->db_addslashes($p->fake_name_clean)."'" . $this->extra_sql (array ('query_type' => VFS_SQL_SELECT)), __LINE__, __FILE__);

			if ($db2->num_rows())
			{
				return True;
			}
			else
			{
				return False;
			}
		}

		/*
		 * See vfs_shared
		 */
		function get_size ($data)
		{
			if (!is_array ($data))
			{
				$data = array ();
			}

			$default_values = array
				(
					'relatives'	=> array (RELATIVE_CURRENT),
					'checksubdirs'	=> True
				);

			$data = array_merge ($this->default_values ($data, $default_values), $data);

			$p = $this->path_parts (array(
					'string'	=> $data['string'],
					'relatives'	=> array ($data['relatives'][0])
				)
			);

			if (!$this->acl_check (array(
					'string'	=> $p->fake_full_path,
					'relatives'	=> array ($p->mask),
					'operation'	=> PHPGW_ACL_READ,
					'must_exist'	=> True
				))
			)
			{
				return False;
			}

			/*
			   WIP - this should run through all of the subfiles/directories in the directory and tally up
			   their sizes.  Should modify ls () to be able to return a list for files outside the virtual root
			*/
			if ($p->outside)
			{
				$size = filesize ($p->real_full_path);

				return $size;
			}

			foreach($this->ls (array(
					'string'	=> $p->fake_full_path,
					'relatives'	=> array ($p->mask),
					'checksubdirs'	=> $data['checksubdirs'],
					'nofiles'	=> !$data['checksubdirs']
				)) as $file_array)
			{
				/*
				   Make sure the file is in the directory we want, and not
				   some deeper nested directory with a similar name
				*/
/*
				if (@!ereg ('^' . $file_array['directory'], $p->fake_full_path))
				{
					continue;
				}
*/

				$size += $file_array['size'];
			}

			//TODO VCB update this when id be primary key
			if ($data['checksubdirs'])
			{
				$query = $GLOBALS['phpgw']->db->query ("SELECT size FROM phpgw_vfs2_files WHERE directory='".
					$GLOBALS['phpgw']->db->db_addslashes($p->fake_leading_dirs_clean)."' AND name='".
					$GLOBALS['phpgw']->db->db_addslashes($p->fake_name_clean)."'" .
					$this->extra_sql (array ('query_text' => VFS_SQL_SELECT)));
				$GLOBALS['phpgw']->db->next_record ();
				$size += $GLOBALS['phpgw']->db->Record[0];
			}

			return $size;
		}

		/*!
		@function checkperms
		@abstract Check if $this->working_id has write access to create files in $dir
		@discussion Simple call to acl_check
		@param string Directory to check access of
		@param relatives Relativity array
		@result Boolean True/False
		*/
		function checkperms ($data)
		{
			if (!is_array ($data))
			{
				$data = array ();
			}

			$default_values = array
				(
					'relatives'	=> array (RELATIVE_CURRENT)
				);

			$data = array_merge ($this->default_values ($data, $default_values), $data);

			$p = $this->path_parts (array(
					'string'	=> $data['string'],
					'relatives'	=> array ($data['relatives'][0])
				)
			);

			if (!$this->acl_check (array(
					'string'	=> $p->fake_full_path,
					'relatives'	=> array ($p->mask),
					'operation'	=> PHPGW_ACL_ADD
				))
			)
			{
				return False;
			}
			else
			{
				return True;
			}
		}

		/*
		 * See vfs_shared
		 * If $data['readlink'] then a readlink is tryed on the real file
		 * If $data['file_id'] then the file_id is used instead of a path
		 */
		//upd 2004-09-16 viniciuscb: Support for custom fields
		function ls ($data)
		{
			if (!is_array ($data))
			{
				$data = array ();
			}

			$default_values = array
				(
					'relatives'	=> array (RELATIVE_CURRENT),
					'checksubdirs'	=> True,
					'mime_type'	=> False,
					'nofiles'	=> False,
					'orderby'	=> 'directory',
					'backups'   => false, /* show or hide backups */
					'files_specified' => array(),
					'allow_outside' => true
				);

			$data = array_merge ($this->default_values ($data, $default_values), $data);


			$p = $this->path_parts (array(
					'string'	=> $data['string'],
					'relatives'	=> array ($data['relatives'][0])
				)
			);
			$dir = $p->fake_full_path;

			//Abiliy to show or not backup files -> put it in sql queries
			$sql_backups = ($data['backups']) ? '' : ' AND is_backup=\'N\' ';


			/* If they pass us a file or 'nofiles' is set, return the info for $dir only */
			if (@$data['file_id']
				|| ((($type = $this->file_type (array(
					'string'	=> $dir,
					'relatives'	=> array ($p->mask)
				)) != 'Directory'))
				|| ($data['nofiles'])) && !$p->outside
			)
			{

				/* SELECT all, the, attributes */
				$sql = 'SELECT ';

				foreach ($this->attributes as $num => $attribute)
				{
					if ($this->attribute_tables[$attribute] == 'phpgw_vfs2_files')
					{
						if ($num)
						{
							$sql .= ', ';
						}

						$sql .= $attribute;
					}
				}

				$sql .= ",mime_id,is_backup FROM phpgw_vfs2_files WHERE ";


				if (@$data['file_id'])
				{
					$sql .= 'file_id='.(int)$data['file_id'].$sql_backups;
				}
				else
				{
					$sql .= "directory='".$GLOBALS['phpgw']->db->db_addslashes($p->fake_leading_dirs_clean).
						"' AND name='".$GLOBALS['phpgw']->db->db_addslashes($p->fake_name_clean)."'".$sql_backups;
				}
				$query = $GLOBALS['phpgw']->db->query ($sql, __LINE__, __FILE__);

				$GLOBALS['phpgw']->db->next_record ();
				$record = $GLOBALS['phpgw']->db->Record;

				/* We return an array of one array to maintain the standard */
				$rarray = array ();
				foreach($this->attributes as $attribute)
				{
					if ($attribute == 'mime_type')
					{
						if (!is_numeric($record['mime_id']))
						{
							$extension = $this->get_file_extension($record['name']);
				
							$res = $this->vfs_mimetypes->add_filetype(array(
								'extension' => $extension
							));

							if ($res)
							{
								$this->db->update('phpgw_vfs2_files',
									array('mime_id'   => $res['mime_id']),
									array('directory' => $p->fake_leading_dirs_clean,
										  'name'      => $p->fake_name_clean
									),__LINE__,__FILE__);

							}
						}
						else
						{
							$res = $this->vfs_mimetypes->get_type(array(
								'mime_id' => $record['mime_id']
							));
						}

						$record['mime_type'] = $res['mime'];
						$record['mime_friendly'] = $res['friendly'];
					}


					$rarray[0][$attribute] = $record[$attribute];
				}
				if ($this->file_actions && @$data['readlink'])	// test if file is a symlink and get it's target
				{
					$rarray[0]['symlink'] = @readlink($p->real_full_path);
				}

				//handle custom fields
				reset($rarray);
				while(list($key,$val) = each($rarray))
				{
					$custom =& $this->vfs_customfields->get_fields_by_fileid($val['file_id']);

					if ($custom)
					{
						$rarray[$key] = array_merge($val,$custom);
					}
				}

				return $rarray;
			}

			//WIP - this should recurse using the same options the virtual part of ls () does
			/* If $dir is outside the virutal root, we have to check the file system manually */
			if ($p->outside)
			{
				if (!$data['allow_outside'])
				{
					return false;
				}

				if ($this->file_type (array(
						'string'	=> $p->fake_full_path,
						'relatives'	=> array ($p->mask)
					)) == 'Directory'
					&& !$data['nofiles']
				)
				{
					$dir_handle = opendir ($p->real_full_path);
					while ($filename = readdir ($dir_handle))
					{
						if ($filename == '.' || $filename == '..')
						{
							continue;
						}

						$rarray[] = $this->get_real_info (array(
								'string'	=> $p->real_full_path . SEP . $filename,
								'relatives'	=> array ($p->mask)
							)
						);
					}
				}
				else
				{
					$rarray[] = $this->get_real_info (array(
							'string'	=> $p->real_full_path,
							'relatives'	=> array ($p->mask)
						)
					);
				}

				//handle custom fields
				reset($rarray);
				while(list($key,$val) = each($rarray))
				{
					$custom =& $this->vfs_customfields->get_fields_by_fileid($val['file_id']);

					if ($custom)
					{
						$rarray[$key] = array_merge($val,$custom);
					}
				}

				return $rarray;
			}

			/* $dir's not a file, is inside the virtual root, and they want to check subdirs */
			/* SELECT all, the, attributes FROM phpgw_vfs WHERE file=$dir */
			$sql = 'SELECT ';

			foreach($this->attributes as $num => $attribute)
			{
				if ($this->attribute_tables[$attribute] == 'phpgw_vfs2_files')
				{
					if ($num)
					{
						$sql .= ", ";
					}

					$sql .= $attribute;
				}
			}

			$dir_clean = $this->clean_string (array ('string' => $dir));
			$sql .= ", mime_id,is_backup FROM phpgw_vfs2_files WHERE directory LIKE '".$GLOBALS['phpgw']->db->db_addslashes($dir_clean)."%'".$sql_backups;
			$sql .= $this->extra_sql (array ('query_type' => VFS_SQL_SELECT));

			if ($data['mime_type'])
			{
				if ($res = $this->vfs_mimetypes->get_type(array(
						'mime' => $data['mime_type']
						)) )
				{
					$sql .= " AND mime_id=".$res['mime_id'];
				}
				else //no file with this mime
				{
					$sql .= " AND 1=0";
				}
			}

			$sql .= ' ORDER BY '.$data['orderby'];

			$query = $GLOBALS['phpgw']->db->query ($sql, __LINE__, __FILE__);

			$rarray = array ();
			for ($i = 0; $GLOBALS['phpgw']->db->next_record (); $i++)
			{
				$record = $GLOBALS['phpgw']->db->Record;


				/* Further checking on the directory.  This makes sure /home/user/test won't match /home/user/test22 */
				if (@!ereg ("^$dir(/|$)", $record['directory']))
				{
					continue;
				}

				/* If they want only this directory, then $dir should end without a trailing / */
				if (!$data['checksubdirs'] && ereg ("^$dir/", $record['directory']))
				{
					continue;
				}

				foreach($this->attributes as $attribute)
				{
					if ($attribute == 'mime_type')
					{
						if (!is_numeric($record['mime_id']))
						{
							$extension = $this->get_file_extension($record['name']);
							if(!$res = $this->vfs_mimetypes->get_type(array(
									'extension' => $extension)) )
							{
								$res = $this->vfs_mimetypes->add_filetype(array(
									'extension'
								));

								if ($res)
								{
									$this->db->update('phpgw_vfs2_files',
										array('mime_id'   => $res['mime_id']),
										array('directory' => $p->fake_leading_dirs_clean,
											  'name'      => $p->fake_name_clean
										),__LINE__,__FILE__);
								}

							}
						}
						else
						{
							$res = $this->vfs_mimetypes->get_type(array(
								'mime_id' => $record['mime_id']
							));
						}

						$record['mime_type'] = $res['mime'];
						$rarray[$i]['mime_friendly'] = $res['friendly'];
					}

					$rarray[$i][$attribute] = $record[$attribute];
				}
			}

			//handle custom fields
			reset($rarray);
			while(list($key,$val) = each($rarray))
			{
				$custom =& $this->vfs_customfields->get_fields_by_fileid($val['file_id']);

				if ($custom)
				{
					$rarray[$key] = array_merge($val,$custom);
				}
			}


			return $rarray;
		}

		/*
		 * See vfs_shared
		 */
		function update_real ($data,$recursive = False)
		{
			if (!is_array ($data))
			{
				$data = array ();
			}

			$default_values = array
				(
					'relatives'	=> array (RELATIVE_CURRENT)
				);

			$data = array_merge ($this->default_values ($data, $default_values), $data);

			$p = $this->path_parts (array(
					'string'	=> $data['string'],
					'relatives'	=> array ($data['relatives'][0])
				)
			);

			if (file_exists ($p->real_full_path))
			{
				if (is_dir ($p->real_full_path))
				{
					$dir_handle = opendir ($p->real_full_path);
					while ($filename = readdir ($dir_handle))
					{
						if ($filename == '.' || $filename == '..')
						{
							continue;
						}

						$rarray[] = $this->get_real_info (array(
								'string'	=> $p->fake_full_path . '/' . $filename,
								'relatives'	=> array (RELATIVE_NONE)
							)
						);
					}
				}
				else
				{
					$rarray[] = $this->get_real_info (array(
							'string'	=> $p->fake_full_path,
							'relatives'	=> array (RELATIVE_NONE)
						)
					);
				}

				if (!is_array ($rarray))
				{
					$rarray = array ();
				}

				foreach($rarray as $num => $file_array)
				{
					$p2 = $this->path_parts (array(
							'string'	=> $file_array['directory'] . '/' . $file_array['name'],
							'relatives'	=> array (RELATIVE_NONE)
						)
					);

					/* Note the mime_type.  This can be "Directory", which is
					 * how we create directories */
					$set_attributes_array = Array(
						'size' => $file_array['size'],
						'mime_type' => $file_array['mime_type']
					);

					if (!$this->file_exists (array(
							'string'	=> $p2->fake_full_path,
							'relatives'	=> array (RELATIVE_NONE)
						))
					)
					{
						$this->touch (array(
								'string'	=> $p2->fake_full_path,
								'relatives'	=> array (RELATIVE_NONE)
							)
						);
					}
					$this->set_attributes (array(
							'string'	=> $p2->fake_full_path,
							'relatives'	=> array (RELATIVE_NONE),
							'attributes'	=> $set_attributes_array
						)
					);
					if ($recursive && $file_array['mime_type'] == 'Directory')
					{
						$dir_data = $data;
						$dir_data['string'] = $file_array['directory'] . '/' . $file_array['name'];
						$this->update_real($dir_data,$recursive);
					}
				}
			}
		}

		/*!
		 * @function regenerate_database 
		 * @abstract This function regenerates the full database. It is like
		 *  the function update_real, but instead, it works for all files in a
		 *  folder, fixing all broken regs in a database (if it exists), or
		 *  recreating it.  
		 * @author Vinicius Cubas Brand
		 */
		function regenerate_database()
		{

		}

		/* Helper functions */

		/* This fetchs all available file system information for string (not using the database) */
		function get_real_info ($data)
		{
			if (!is_array ($data))
			{
				$data = array ();
			}

			$default_values = array
				(
					'relatives'	=> array (RELATIVE_CURRENT)
				);

			$data = array_merge ($this->default_values ($data, $default_values), $data);

			$p = $this->path_parts (array(
					'string'	=> $data['string'],
					'relatives'	=> array ($data['relatives'][0])
				)
			);

			if (is_dir ($p->real_full_path))
			{
				$mime_type = 'Directory';
			}
			else
			{
				$mime_type = $this->get_ext_mime_type (array(
						'string'	=> $p->fake_name
					)
				);

				if($mime_type)
				{
					$GLOBALS['phpgw']->db->query ("UPDATE phpgw_vfs2_files file, phpgw_vfs2_mimetypes mime SET mime.mime_id=file.mime_id WHERE mime.mime='".$mime_type."' AND file.directory='".
						$GLOBALS['phpgw']->db->db_addslashes($p->fake_leading_dirs_clean)."' AND file.name='".
						$GLOBALS['phpgw']->db->db_addslashes($p->fake_name_clean)."'" .
						$this->extra_sql (array ('query_type' => VFS_SQL_SELECT)), __LINE__, __FILE__);
				}
			}

			$size = filesize ($p->real_full_path);
			$rarray = array(
				'directory' => $p->fake_leading_dirs,
				'name' => $p->fake_name,
				'size' => $size,
				'mime_type' => $mime_type
			);

			return ($rarray);
		}


		/*!
		 * @function search
		 * @abstract This function returns the files that have a field with
		 *           keyword
		 *
		 * @author Vinicius Cubas Brand
		 */
		function search($keyword,$fields=null,$is_backup='N')
		{
			//the fields in which the keyword will be searched
			$searchable_fields = array(
				'created',
				'comment',
				'app',
				'directory',
				'name',
				'link_directory',
				'link_name',
				'version',
				'proper_id'
			);

			if (is_array($fields))
			{
				$tmp = array_diff($searchable_fields,$fields);
				$searchable_fields = array_diff($searchable_fields,$tmp);
			}

			foreach ($searchable_fields as $val)
			{
				$sf[] = $val." LIKE '%$keyword%'";
			}
			
			$where = implode(' OR ',$sf);
			
			$sql = "SELECT file_id
			        FROM   phpgw_vfs2_files
					WHERE  $where
					  AND  is_backup = '$is_backup'";
			
			$this->db->query($sql,__LINE__,__FILE__);

			$res = array();
			while ($this->db->next_record())
			{
				$res[] = $this->db->Record['file_id'];
			}

			//search in the custom fields
			$res = array_unique(array_merge($res,$this->vfs_customfields->search_files($keyword,$fields)));

			sort($res);

			return $res;
		}

		/*!
		 * @function get_file_extension
		 * @abstract This function returns the file extension for a file.
		 *
		 * @author Vinicius Cubas Brand
		 */
		function get_file_extension($filename)
		{
			$ext = explode('.',$filename);
			
			$bla = array_pop($ext);

			if (count($ext))
			{
				return $bla;
			}

			return '';
		}

		/*!
		 * @function get_file_id
		 * @abstract This function returns the file id for a file, false on eror
		 * @param string, relatives
		 *
		 * @author Vinicius Cubas Brand
		 */
		function get_file_id($data)
		{
			if (!is_array ($data))
			{
				$data = array ();
			}

			$default_values = array
				(
					'relatives'	=> array (RELATIVE_CURRENT),
				);

			$data = array_merge ($this->default_values ($data, $default_values), $data);

			$p = $this->path_parts (array(
						'string'	=> $data['string'],
						'relatives'	=> array ($data['relatives'][0])
					)
			);

			$sql = "SELECT file_id
			        FROM phpgw_vfs2_files
					WHERE directory='".$this->db->db_addslashes($p->fake_leading_dirs_clean)."' 
				      AND name='".$this->db->db_addslashes($p->fake_name_clean)."'";
				
			$query = $this->db->query ($sql , __LINE__, __FILE__);
			$this->db->next_record ();

			return $this->db->Record['file_id'];
		}

		/*!
		 * @function id2name
		 * @abstract This function returns an array with all information about
		 * a file
		 * @param string, relatives
		 *
		 * @author Vinicius Cubas Brand
		 */
		function id2name($id)
		{
			$res = $this->db->select('phpgw_vfs2_files','*',
				array('file_id'=>$id),__LINE__,__FILE__);

			if($this->db->next_record())
			{
				$result = $this->db->Record;

				$res = $this->vfs_mimetypes->get_type(array(
									'mime_id' => $result['mime_id']
								));

					$result['mime_type'] = $res['mime'];
					$result['mime_friendly'] = $res['friendly'];

					return $result;
			}

			return array();
		}

		//TODO should generate a new name if archive exists, or have some other
		//sort of smart error handling.
		function compress($data)
		{
			$compression_handlers = array(
//				'gz'  => 'gzip',
//				'bz2' => 'bzip',
//				'tar' => 'tar',
				'zip' => 'zip'
				);

			if (!is_array($data['files']) || !$data['name'])
			{
				return false;
			}

			$default_values = array
			(
				'type'          => 'zip',
				'relatives'     => array(RELATIVE_CURRENT),
				'prefix'        => $GLOBALS['phpgw_info']['user']['account_lid'],
				'ptype'         => ''
			);

			$data = array_merge ($this->default_values ($data, $default_values), $data);

			if (!$data['type'] || !array_key_exists($data['type'],$compression_handlers))
			{
				//error: inexistent type given
				return false;
			}


			//put extension in archive name, if not exists
			if ($this->get_file_extension($data['name']) != $data['type'])
			{
				if ($data['type'] == 'zip' || $data['type'] == 'tar')
				{
					$data['name'] .= '.' . $data['type'];
				}
				else
				{
					$data['name'] .= '.tar.' . $data['type'];
				}
			}

			//last element in array $data['relatives'] is the id of destiny
			$dest_relativity = (count($data['relatives']))?array_pop($data['relatives']):RELATIVE_CURRENT;

			$dest = $this->path_parts(array(
				'string' => $data['name'],
				'relatives' => $dest_relativity
			));

			if ($this->file_exists(array(
				'string' => $dest->fake_full_path,
				'relatives' => $dest->mask	)))
			{
				//overwrite handling

				//check if acl allow overwriting
				if (!$this->acl_check(array(
					'string' => $dest->fake_full_path,
					'relatives' => $dest->mask,
					'operation' => PHPGW_ACL_EDIT))
					)
				{
					//error: cannot overwrite (HANDLE THIS)
					return false;
				}
			}
			else
			{	
				//Add handling

				//check acl
				if (!$this->acl_check(array(
					'string' => $dest->fake_leading_dirs,
					'relatives' => $dest->mask,
					'operation' => PHPGW_ACL_ADD))
					)
				{
					//error: cannot add in dir
					return false;
				}
			}

			$count_rels = count($data['relatives']);

			reset($data['relatives']);
			foreach($data['files'] as $filename)
			{
				if (!($relative = current($data['relatives'])))
				{
					$relative = RELATIVE_CURRENT;
				}
			
				$p = $this->path_parts(array(
					'string' => $filename,
					'relatives' => array($relative)
				));

				if ($this->acl_check(array(
					'string' => $p->fake_full_path,
					'relatives' => $p->mask,
					'operation' => PHPGW_ACL_READ,
					'must_exist' => true )) )
				{
					$filenames[] = $p->real_full_path;
				}
				else
				{
					//catch error: file not exists or no permission
				}

				next($data['relatives']);
			}

			//Save file in tmp folder, then move it to its definitive place.
			//This will handle file overwrites and journalling entries.

			$tmp_dir =  $GLOBALS['phpgw_info']['server']['temp_dir'];
			$tmp_filename = $tmp_dir.'/'.$this->random_filename();

			$archive_opts = array(
				'basedir' =>  $dest->real_leading_dirs,
				'inmemory' => 0,
				'overwrite' => 1, //provisory, todo error handling
				'recurse' => 1,
				'storepaths' => 1,
				'level' => 9//compression level, 9 is max, 0 is none, 3 ok
			);

/*			#Didn't work - class.archive.inc.php
			$compression_class = $compression_handlers[$data['type']].'_file';

			require_once(PHPGW_API_INC.'/class.archive.inc.php');	

			$arch = new $compression_class($tmp_filename);
			$arch->set_options($archive_opts);
			$arch->add_files($filenames);
			$arch->create_archive();

			$type_array = $this->vfs_mimetypes->get_type(array('extension'=>$data['type']));
			$arch_mime = $type_array['mime'];*/


			switch($data['type'])
			{
				case 'zip':
					$zip = CreateObject('phpgwapi.PclZip',$tmp_filename);

					//FIXME not $dest->real_leading_dirs, but the path to be
					//removed from files
					$zip->create($filenames,PCLZIP_OPT_REMOVE_PATH,$dest->real_leading_dirs);
					$arch_mime = 'application/x-zip-compressed';
					break;

				default:
				/*
					$tar = CreateObject('phpgwapi.Archive_Tar',$tmp_filename,$data['type']);
					//FIXME not $dest->real_leading_dirs, but the path to be
					//removed from files
					if (!$tar->createModify($filenames,'',$dest->real_leading_dirs.'/'))
					{
						//TODO throw error
					}
					$arch_mime = 'application/x-gzip';
					break;
				*/
			}

			/* VOILA! now the archive is created!!! but it is yet in /tmp and
			 * have no entry in the database and is not in its correct dir.
			 * The next and final step is then to make these tasks. */

			$dest_relativity = $data['relatives'][count($data['relatives'])-1];

			# ----------------------------------------------------------- #
			# All code under here copied from filescenter->bo->fileUpload #
			# ----------------------------------------------------------- #

			$file_comment = "Archive contents:\n\n".implode("\n",$data['files']);
			$file_comment = substr(0,255,$file_comment);

			# Check to see if the file exists in the database, and get
			# its info at the same time
			$ls_array = $this->ls(array(
				'string'=> $data['name'],
				'relatives'	=> array($dest_relativity),
				'checksubdirs'	=> False,
				'nofiles'	=> True
			));

			$fileinfo = $ls_array[0];

			if($fileinfo['name'])
			{
				if($fileinfo['mime_type'] == 'Directory')
				{
					$messages[]= $GLOBALS['phpgw']->common->error_list(array(lang('Cannot replace %1 because it is a directory', $fileinfo['name'])));
					return false;
				}
			}

			#overwriting
			if($fileinfo['name'] && $fileinfo['deleteable'] != 'N')
			{
				$tmp_arr=array(
					'string'=> $data['name'],
					'relatives'	=> array($dest_relativity),
					'attributes'	=> array(
						'owner_id' => $GLOBALS['phpgw_info']['user']['account_id'],
						'modifiedby_id' => $GLOBALS['phpgw_info']['user']['account_id'], 
						'modified' => date('Y-m-d'),
						'mime_type' => $arch_mime,
						'size' => filesize($tmp_filename),
						'deleteable' => 'Y',
						'comment' => $file_comment,
						'prefix' => $data['prefix'],
						'ptype' => $data['ptype']
						#if overwriting, do not change.
						#TODO rethink/decide policy for that
						#'prefix' => $otherelms['prefix'.$file_number])
						
					)
				);
				$this->set_attributes($tmp_arr);

				$tmp_arr=array(
					'from'	=> $tmp_filename,
					'to'	=> $data['name'],
					'relatives'	=> array(RELATIVE_NONE|VFS_REAL, $dest_relativity)
				);
				$this->cp($tmp_arr);

			}
			else #creating a new file
			{
				$this->cp(array(
					'from'=> $tmp_filename,
					'to'=> $data['name'],
					'relatives'	=> array(RELATIVE_NONE|VFS_REAL, $dest_relativity)
				));

				$this->set_attributes(array(
					'string'=> $data['name'],
					'relatives'	=> array($dest_relativity),
					'attributes'=> array(
						'comment' => $file_comment,
						'mime_type' => $arch_mime,
						'prefix' => $data['prefix'],
						'ptype' => $data['ptype']
						
					)
				));

			}
		}


		#two parts: 1: extract files in tmp_dir.  2: move files to dir, adding
		# them in db
		function extract($data)
		{
			$compression_handlers = array(
				'gz'  => 'gzip',
				'bz2' => 'bzip',
				'tar' => 'tar',
				'zip' => 'zip'
				);


			if (!$data['name'] || !$data['dest'])
			{
				return false;
			}

			$default_values = array
			(
				'relatives'	=> array(RELATIVE_CURRENT,RELATIVE_CURRENT),
				'prefix'    => $GLOBALS['phpgw_info']['user']['account_lid'],
				'ptype'     => ''
				
			);

			$data = array_merge ($this->default_values ($data, $default_values), $data);

			if (!$data['type'])
			{
				$data['type'] = strtolower($this->get_file_extension($data['name']));
			}

			if (!$data['type'] || !array_key_exists($data['type'],$compression_handlers))
			{
				//error: inexistent type given
				return false;
			}


			$arch = $this->path_parts (array(
				'string' => $data['name'],
				'relatives' => array ($data['relatives'][0])
			));

			$dest = $this->path_parts (array(
				'string' => $data['dest'],
				'relatives' => array_pop($data['relatives'])
			));

			//Extract files in tmp folder, then move it to its definitive place.
			//This will handle file overwrites and journalling entries.

			$tmp_dir =  $GLOBALS['phpgw_info']['server']['temp_dir'];
			$tmp_dirname = $tmp_dir.'/'.$this->random_filename();


			$tmp_dest = $this->path_parts(array(
				'string' => $tmp_dirname,
				'relatives' => array(RELATIVE_NONE|VFS_REAL)
				));

			if ($this->file_exists(array(
				'string'=> $tmp_dest->fake_full_path,
				'relatives' => $tmp_dest->mask )))
			{
				$this->rm(array(
					'string' => $tmp_dest->fake_full_path,
					'relatives' => $tmp_dest->mask 
				));
			}

			$this->mkdir(array(
				'string' => $tmp_dest->fake_full_path,
				'relatives' => array($tmp_dest->mask)
			));


			# see if user has add permission in destination folder
			if (!$this->acl_check(array(
				'string'     => $dest->fake_full_path,
				'relatives'  => $dest->mask,
				'operation'  => PHPGW_ACL_ADD,
				'must_exist' => true ))
				)
			{
				return false; //TODO error handling
			}

			#extract files
			switch ($data['type'])
			{
				case 'zip':
					$zip = CreateObject('phpgwapi.PclZip',$arch->real_full_path);
					if (!$zip->extract(PCLZIP_OPT_PATH,$tmp_dest->real_full_path,PCLZIP_OPT_SET_CHMOD,DEFAULT_LOW_PERMS))
					{
						return false; //TODO handle error
					}
					break;
				default:
					return false;
				/*

					$archive_opts = array(
						'basedir' =>  $tmp_dest->real_full_path,
						'overwrite' => 1 //provisory, todo error handling
					);

					$compression_class = $compression_handlers[$data['type']].'_file';
					$archive_obj = new $compression_class($arch->real_full_path);
					$archive_obj->set_options($archive_opts);
					$archive_obj->extract_files();
					*/

	/*				$tar = CreateObject('phpgwapi.Archive_Tar',$arch->real_full_path);
					if (!$tar->extract($tmp_dest->real_full_path))
					{
						return false; //TODO handle error
					}
					break;*/
				default:
					return false; //TODO handle error
			}

			#refresh db

			$filelist = $this->ls(array(
				'string'    => $tmp_dest->fake_full_path,
				'relatives' => array($tmp_dest->mask),
				'checksubdirs' => true,
				'nofiles' => false
			));

			foreach ($filelist as $file)
			{
				

				$this->mv(array(
					'from' => $file['directory'].'/'.$file['name'],
					'to'   => $dest->fake_full_path.'/'.$file['name'],
					'relatives' => array(RELATIVE_NONE|VFS_REAL,$dest->mask)
				));

				$this->set_attributes(array(
					'string' => $dest->fake_full_path.'/'.$file['name'],
					'relatives' => array($dest->mask),
					'attributes' => array(
						'prefix' => $data['prefix'],
						'ptype'  => $data['ptype'],
						'mime_type' => $file['mime_type'],
						'size' => $file['size']
					)
				));


			}
		}

		/*!
		 * @function random_filename()
		 * @abstract Generates a Random Filename
		 *
		 * @result string
		 */
		function random_filename()
		{
			$filename = '';
			$filename_length = 8;
			while (strlen($filename) < $filename_length) {
				$filename .= chr(rand (97,122));
			}

			return $filename.'.tmp';
		}

		function generate_proper_id($owner_name,$filetype_identifier)
		{
			$prefix = $owner_name.'-'.$filetype_identifier.'-';
			#$prefix = 'P-' . $this->year . '-';

			$prefix = str_replace('--','-',$prefix);

			$qry = "select max(proper_id) from phpgw_vfs2_files where proper_id like ('$prefix%') AND LENGTH(proper_id) <= ".(strlen($prefix)+4);

//			echo $qry;
//			exit();

			$this->db->query("select max(proper_id) from phpgw_vfs2_files where proper_id like ('$prefix%') AND LENGTH(proper_id) <= ".(strlen($prefix)+4));
			$this->db->next_record();
			$max = $this->add_leading_zero(array_pop(explode('-',$this->db->f(0))));
			return $prefix . $max;
		}

		function add_leading_zero($num)  
		{
/*			if ($id_type == "hex")
			{
				$num = hexdec($num);
				$num++;
				$num = dechex($num);
			}
			else
			{
				$num++;
			} */

			$num++;

			if (is_numeric($num))
			{
				if (strlen($num) == 4)
					$return = $num;
				if (strlen($num) == 3)
					$return = "0$num";
				if (strlen($num) == 2)
					$return = "00$num";
				if (strlen($num) == 1)
					$return = "000$num";
				if (strlen($num) == 0)
					$return = "0001";
			}
			else
			{
				$return = $num;
			}

			return strtoupper($return);
		}

			
		//import function from old vfs
		function import_vfs()
		{
			$filename = PHPGW_API_INC.'/class.vfs_sql.inc.php';
			
			if (function_exists('file_get_contents'))
			{
				$file_vfs_sql = file_get_contents($filename);
			}
			else
			{
				$fp = fopen($filename,'r');
				$file_vfs_sql = fread($fp,filesize($filename));
				fclose($fp);
			}
			
			$file_vfs_sql = str_replace(
				array('class vfs','function vfs','<?php','<?','?>'),
				array('class vfs_sql_old','function vfs_sql_old'),$file_vfs_sql
			);

			eval($file_vfs_sql);

			$obj_vfs_sql = new vfs_sql_old();

			$obj_vfs_sql->override_acl = true;

			$directories = $obj_vfs_sql->ls(array(
				'string' => '/',
				'relatives' => array(RELATIVE_ROOT),
				'checksubdirs' => true,
				'nofiles' => false,
				'mime_type' => 'Directory'
				));

			$global_content = $obj_vfs_sql->ls(array(
				'string' => '/',
				'relatives' => array(RELATIVE_ROOT),
				'checksubdirs' => true,
				'nofiles' => false
				));

			$obj_vfs_sql->override_acl = false;

			$this->override_acl = true;

			foreach($directories as $key => $dir)
			{
				$dirname = str_replace('//','/',$dir['directory'].'/'.$dir['name']);
				$dir_exists_in_vfs2 = $this->file_exists(array(
					'string' => $dirname,
					'relatives' => array(RELATIVE_ROOT),
					'allow_outside' => false
				));


				if ($dir_exists_in_vfs2)
				{
					$dir_is_dir = $this->file_type(array(
						'string' => $dirname,
						'relatives' => array(RELATIVE_ROOT)
					)) == 'Directory';

					if ($dir_is_dir)
					{
						//good - just add permissions to the old owner

						//1. get information about file

						$file_info = $this->ls(array(
							'string' => $dirname,
							'relatives' => array(RELATIVE_ROOT),
							'nofiles' => true,
							'checksubdirs' => false,
							'allow_outside' => false
						));

						if (!$file_info['proper_id'])
						{
							$this->set_attributes(array(
								'string' => $dirname,
								'relatives' => array(RELATIVE_ROOT),
								'attributes' => array(
									'prefix' => $GLOBALS['phpgw']->accounts->id2name($dir['owner_id']),
									'comment' => $dir['comment']
									)
							));
						}

						//if user is not the owner of the file, will
						//add him in the list of authorized personnel
						if (array_key_exists(0,$file_info) && $file_info[0]['owner_id'] != $dir['owner_id'])
						{
							$file_id = $this->get_file_id(array(
								'string' => $dirname,
								'relatives' => array(RELATIVE_ROOT)
							));

							if ($file_id != 0)
							{
								if ($dirname != "/" && $dirname != "/home")
								{
									$perms = $this->vfs_sharing->get_permissions($file_id);
									$perms[$dir['owner_id']] = PHPGW_ACL_READ | PHPGW_ACL_ADD | PHPGW_ACL_EDIT | PHPGW_ACL_DELETE;

									$this->vfs_sharing->set_permissions(array($file_id => $perms));
								}

							}
							else
							{
								//something gone wrong... This should not have
								//happened
								trigger_error('Failed in permission setting of file <b>'.$dirname.'</b> at importing procedure.');
							}
						}
						continue;
					}
					else
					{
						$this->mv(array(
							'from' => $dirname,
							'to'   => $dirname.'_renamed',
							'relatives' => array(RELATIVE_ROOT,RELATIVE_ROOT)
						));
						//error, bacuse wanting to touch a dir that is a
						//file in new vfs
					}
				}
				
				$this->mkdir(array(
					'string' => $dirname,
					'relatives' => array(RELATIVE_ROOT)
				));

				unset($dir['file_id']);

				$dir['prefix'] = $GLOBALS['phpgw']->accounts->id2name($dir['owner_id']);

				$this->set_attributes(array(
					'string' => $dirname,
					'relatives' => array(RELATIVE_ROOT),
					'attributes' => $dir
				));
			}

			foreach($global_content as $file)
			{
				$filename = str_replace('//','/',$file['directory'].'/'.$file['name']);
				$file_exists_in_vfs2 = $this->file_exists(array(
					'string' => $filename,
					'relatives' => array(RELATIVE_ROOT),
					'allow_outside' => false
				));


				if ($file['mime_type'] != 'Directory')
				{
					if ($file_exists_in_vfs2)
					{
						$file_is_dir = $this->file_type(array(
							'string' => $filename,
							'relatives' => array(RELATIVE_ROOT)
						)) == 'Directory';

						if (!$file_is_dir)
						{
							//good - just add permissions to the old owner

							//1. get information about file

							$file_info = $this->ls(array(
								'string' => $filename,
								'relatives' => array(RELATIVE_ROOT),
								'nofiles' => true,
								'checksubdirs' => false,
								'allow_outside' => false
							));

							if (!$file_info['proper_id'])
							{
								$this->set_attributes(array(
									'string' => $filename,
									'relatives' => array(RELATIVE_ROOT),
									'attributes' => array(
										'prefix' => $GLOBALS['phpgw']->accounts->id2name($file['owner_id']),
										'comment' => $file['comment']
										)
								));
							}

							//if user is not the owner of the file, will
							//add him in the list of authorized personnel
							if (array_key_exists(0,$file_info) && $file_info[0]['owner_id'] != $file['owner_id'])
							{
								$file_id = $this->get_file_id(array(
									'string' => $filename,
									'relatives' => array(RELATIVE_ROOT)
								));

								if ($file_id != 0)
								{
									if ($filename != "/" && $filename != "/home")
									{
										$perms = $this->vfs_sharing->get_permissions($file_id);
										$perms[$file['owner_id']] = PHPGW_ACL_READ | PHPGW_ACL_ADD | PHPGW_ACL_EDIT | PHPGW_ACL_DELETE;

										$this->vfs_sharing->set_permissions(array($file_id => $perms));
									}

								}
								else
								{
									//something gone wrong... This should not have
									//happened
									trigger_error('Failed in permission setting of file <b>'.$filename.'</b> at importing procedure.');
								}
							}
							continue;
						}
						else 
						{
							$this->mv(array(
								'from' => $filename,
								'to'   => $filename.'_renamed',
								'relatives' => array(RELATIVE_ROOT,RELATIVE_ROOT)
							));
							//error, bacuse wanting to touch a file that is a
							//dir in new vfs
						}
						
					}

					$this->touch(array(
						'string' => $filename,
						'relatives' => array(RELATIVE_ROOT)
					));

					unset($file['file_id']);

					$file['prefix'] = $GLOBALS['phpgw']->accounts->id2name($file['owner_id']);

					$this->set_attributes(array(
						'string' => $filename,
						'relatives' => array(RELATIVE_ROOT),
						'attributes' => $file
						
					));

				}
			}
			$this->override_acl = false;
		}
	}
?>