forked from extern/egroupware
374 lines
10 KiB
PHP
374 lines
10 KiB
PHP
<?php
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/***************************************************************************\
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* eGroupWare - File Manager *
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* http://www.egroupware.org *
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* Written by: *
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* - Vinicius Cubas Brand <viniciuscb@users.sourceforge.net> *
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* sponsored by Thyamad - http://www.thyamad.com *
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* ------------------------------------------------------------------------- *
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* Description: File ID Prefixes class handler for SQL implementation v2 *
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* ------------------------------------------------------------------------- *
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* This program is free software; you can redistribute it and/or modify it *
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* under the terms of the GNU General Public License as published by the *
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* Free Software Foundation; either version 2 of the License, or (at your *
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* option) any later version. *
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\***************************************************************************/
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#12 Oct 2004 viniciuscb Initial Release
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define ('PHPGW_VFS2_PREFIX_APP','vfs2_prefix'); //for prefix
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define ('PHPGW_VFS2_PTYPE_APP','vfs2_ptype'); //for file type
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class vfs_prefixes
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{
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var $db;
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var $table_fields = array(
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'prefix_id',
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'owner_id',
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'prefix',
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'prefix_description',
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'prefix_type'
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);
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function vfs_prefixes()
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{
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$this->db = $GLOBALS['phpgw']->db;
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}
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/*!
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* function add
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* @description Adds a new File ID Prefix to the prefixes repository
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* @param prefix string (required) A prefix
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* @param prefix_description string (optional) Brief prefix description
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* @param owner_id int (required) Owner Id of prefix
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* @param prefix_type (optional) can be 'p' for prefix, 't' for type.
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* @result (int) prefix_id
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*
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* @note: will search for another equal $prefix in repository. If
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* exists, returns its prefix_id and if user have permission,
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* updates this prefix. If don't exists, insert and return its
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* prefix_id. $dont_update will not do any update if exists, even
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* if current user can update.
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*/
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function add($data,$dont_update=false)
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{
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if (!$data['prefix'])
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{
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return false;
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}
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if (!$data['prefix_type'])
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{
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$data['prefix_type'] = 'p';
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}
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//eliminate keys which are not a field in table
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foreach($data as $key => $val)
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{
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if (!in_array($key,$this->table_fields))
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{
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unset($data[$key]);
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}
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}
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//see if exists some equal prefix id
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$this->db->select('phpgw_vfs2_prefixes','prefix_id',array('prefix' => $data['prefix']));
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if($this->db->next_record()) //exists
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{
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if ($dont_update)
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{
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return $this->db->Record['prefix_id'];
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}
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$data['prefix_id'] = $this->db->Record['prefix_id'];
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return $this->edit($data);
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}
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if (!$data['owner_id'])
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{
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$data['owner_id'] = $GLOBALS['phpgw_info']['user']['account_id'];
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}
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$this->db->insert('phpgw_vfs2_prefixes',$data,false,__LINE__,__FILE__);
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$this->db->select('phpgw_vfs2_prefixes','prefix_id',array('prefix' => $data['prefix']));
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if($this->db->next_record()) //exists
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{
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return $this->db->Record['prefix_id'];
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}
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return false;
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}
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/*!
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* function edit
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* @description Edits a File ID Prefix
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* @param prefix_id int (required) The ID for prefix
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* @param prefix string (optional) A prefix
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* @param prefix_description string (optional) Brief prefix description
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* @param owner_id int (optional) Owner Id of prefix
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* @param prefix_type (optional) can be 'p' for prefix, 't' for type.
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* @result (int) prefix_id
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* @result (bool) true on success, false on any other possibility
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*/
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function edit($data)
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{
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if (!$data['prefix_id'])
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{
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return false;
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}
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//eliminate keys which are not a field in table
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foreach($data as $key => $val)
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{
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if (!in_array($key,$this->table_fields))
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{
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unset($data[$key]);
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}
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}
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$where['prefix_id'] = $data['prefix_id'];
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unset($data['prefix_id']);
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return $this->db->update('phpgw_vfs2_prefixes',$data,$where,__LINE__,__FILE__);
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}
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/*!
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* function remove
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* @description Removes a File ID Prefix
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* @param prefix_id int (required) The ID for prefix
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* @result (bool) true on success, false on any other possibility
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*/
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function remove($prefix_id)
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{
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return $this->db->delete('phpgw_vfs2_prefixes',array('prefix_id' => $prefix_id),__LINE__,__FILE__);
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}
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/*!
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* function get
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* @description Gets information about a prefix just based in prefix_id
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* @param prefix_id int (required) The ID for prefix
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* OR
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* @param prefix int (required) The prefix
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* @result (array) with column names as indexes, empty array if inexist
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*/
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function get($data)
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{
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if (!$data['prefix_id'] && !$data['prefix'])
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return false;
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$this->db->select('phpgw_vfs2_prefixes','*',$data,__LINE__,__FILE__);
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if ($this->db->next_record())
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{
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return $this->db->Record;
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}
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return array();
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}
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/*!
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* function get_prefixes
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* @description Gets all prefixes this user can view, based in querying
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* acl
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* @param user_id int (required) The ID of user to whom you want to
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* know, or will get current user as default
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* @param status string If 'view', returns info about all prefixes
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* user can view. if 'owns', return only prefixes user owns
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* @result (array) with column names as indexes, empty array if inexist
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*/
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function get_prefixes($status='view',$user_id=false,$type='p')
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{
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if (!$user_id)
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{
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$user_id = $GLOBALS['phpgw_info']['user']['account_id'];
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}
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switch ($status)
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{
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case 'owns':
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$this->db->select('phpgw_vfs2_prefixes','*',array('owner_id'=>$user_id,'prefix_type'=>$type),__LINE__,__FILE__);
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while($this->db->next_record())
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{
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$return[] = $this->db->Record;
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}
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break;
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case 'view':
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$acl = CreateObject('phpgwapi.acl',$user_id);
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//fetch ids of prefixes that user can view
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if (!$pr_list = $acl->get_location_list_for_id(PHPGW_VFS2_PREFIX_APP,PHPGW_ACL_READ,$user_id))
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{
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$pr_list = array();
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}
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//fetch ids of prefixes that groups user belong to can view
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//Note: this will be in two phases. One: fetch groups user
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// belongs to. Two: fetch prefix list for these groups
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/* Note: prefixes are organized in phpgwapi.acl in the
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* following schema:
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* - appname: (PHPGW_VFS2_PREFIX_APP)
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* - location: id_prefix
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* - account_id: Id of user that has grants (not the
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* grantor. The grantor is only the owner of prefix,
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* defined in prefixes repository).
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* - acl_rights: PHPGW_ACL_READ
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*/
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$user_groups = $GLOBALS['phpgw']->accounts->membership($user_id);
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foreach($user_groups as $group)
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{
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if (!$group_pr_list = $acl->get_location_list_for_id(PHPGW_VFS2_PREFIX_APP,PHPGW_ACL_READ,$group['account_id']))
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{
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$group_pr_list = array();
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}
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$pr_list = array_merge($pr_list,$group_pr_list);
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}
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//remove dupliate values
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$pr_list = array_unique($pr_list);
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//now we have the list of prefixes user can view. We must
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//now fetch complete information about prefixes of
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//phpgw_vfs2_prefixes
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if (!count($pr_list))
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{
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return array();
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}
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if ($pr_list)
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{
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$prefix_string = '('.implode(',',$pr_list).')';
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$this->db->select('phpgw_vfs2_prefixes','*','prefix_id IN '.$prefix_string." AND prefix_type='$type'",__LINE__,__FILE__);
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while($this->db->next_record())
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{
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$return[] = $this->db->Record;
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}
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}
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else
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{
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return array();
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}
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break;
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default:
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return false;
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}
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return $return;
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}
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/*!
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* function update_permissions
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* @description Updates users who can see a prefix
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*
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* @param prefix_id int (required) The prefix that will have permissions
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* changed
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* @param user_list array Array with account_ids that can read prefix
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* as values.
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*
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* @result (bool)
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*/
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function update_permissions($prefix_id,$user_list)
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{
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//1. see if current user is owner of the prefix
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$current_user_id = $GLOBALS['phpgw_info']['user']['account_id'];
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$prefix_info = $this->get(array('prefix_id'=>$prefix_id));
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if ($current_user_id != $prefix_info['owner_id'])
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{
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return false;
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}
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//2. get current permission for prefix
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$current_permissions = $this->get_permissions(array('prefix_id'=>$prefix_id));
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//3. change permissions
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$list_of_users_to_add = array_diff($user_list,$current_permissions);
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$list_of_users_to_del = array_diff($current_permissions,$user_list);
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$acl = CreateObject('phpgwapi.acl',$current_user_id);
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foreach($list_of_users_to_add as $user_id)
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{
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$acl->account_id = $user_id;
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$acl->read_repository();
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#echo "<br>\nAdded: prefix $prefix_id ; user $user_id";
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$acl->add(PHPGW_VFS2_PREFIX_APP,$prefix_id,PHPGW_ACL_READ);
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$acl->save_repository();
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}
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foreach($list_of_users_to_del as $user_id)
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{
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$acl->account_id = $user_id;
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$acl->read_repository();
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#echo "<br>\nDeleted: prefix $prefix_id ; user $user_id";
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$acl->delete(PHPGW_VFS2_PREFIX_APP,$prefix_id);
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$acl->save_repository();
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}
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}
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/*!
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* function get_permissions
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* @description This will get all permissions for a given prefix.
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* In other words, will return an array of all accounts who
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* can see a prefix. Will not dive into groups' users,
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* only showing user and group accounts who can see
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* prefix.
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*
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* @param prefix int (required) The File ID Prefix
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* OR
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* @param prefix_id int (required) The ID of the File ID Prefix
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* @param prefixes array The same type of the return of get_prefixes
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*
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* @result (array) with column names as indexes, empty array if inexist
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*/
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function get_permissions($data)
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{
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if (is_numeric($data))
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{
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$prefix_id = $data;
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}
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elseif ($data['prefix'])
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{
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$this->db->select('phpgw_vfs2_prefixes','prefix_id',array('prefix'=>$data['prefix']),__LINE__,__FILE__);
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if ($this->db->next_record())
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{
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$prefix_id = $this->db->Record['prefix_id'];
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}
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}
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elseif($data['prefix_id'])
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{
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$prefix_id = $data['prefix_id'];
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}
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if (!$prefix_id)
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{
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return false;
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}
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$acl = CreateObject('phpgwapi.acl');
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$user_ids = $acl->get_ids_for_location($prefix_id,PHPGW_ACL_READ,PHPGW_VFS2_PREFIX_APP);
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return ($user_ids)?$user_ids:array();
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}
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}
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?>
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