forked from extern/egroupware
208 lines
8.7 KiB
PHP
208 lines
8.7 KiB
PHP
<?php
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/**************************************************************************\
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* phpGroupWare API - Access Control List *
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* This file written by Dan Kuykendall <seek3r@phpgroupware.org> *
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* Security scheme based on ACL design *
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* Copyright (C) 2000, 2001 Dan Kuykendall *
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* -------------------------------------------------------------------------*
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* This library is part of the phpGroupWare API *
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* http://www.phpgroupware.org/api *
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* ------------------------------------------------------------------------ *
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* This library is free software; you can redistribute it and/or modify it *
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* under the terms of the GNU Lesser General Public License as published by *
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* the Free Software Foundation; either version 2.1 of the License, *
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* or any later version. *
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* This library is distributed in the hope that it will be useful, but *
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* WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. *
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* See the GNU Lesser General Public License for more details. *
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* You should have received a copy of the GNU Lesser General Public License *
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* along with this library; if not, write to the Free Software Foundation, *
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* Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA *
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\**************************************************************************/
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/* $Id$ */
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class acl
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{
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var $db;
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function acl()
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{
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global $phpgw;
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$this->db = $phpgw->db;
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}
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/* This is a new class. These are sample table entries
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insert into phpgw_acl (acl_appname, acl_location, acl_account, acl_account_type, acl_rights)
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values('filemanager', 'create', 1, 'u', 4);
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insert into phpgw_acl (acl_appname, acl_location, acl_account, acl_account_type, acl_rights)
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values('filemanager', 'create', 1, 'g', 2);
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insert into phpgw_acl (acl_appname, acl_location, acl_account, acl_account_type, acl_rights)
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values('filemanager', 'create', 2, 'u', 1);
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insert into phpgw_acl (acl_appname, acl_location, acl_account, acl_account_type, acl_rights)
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values('filemanager', 'create', 2, 'g', 2);
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*/
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function get_rights($location,$appname = False, $user_id = ""){
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global $phpgw, $phpgw_info;
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if ($appname == False){
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$appname = $phpgw_info["flags"]["currentapp"];
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}
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if($user_id == "") {
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$user_id = $phpgw_info["user"]["account_id"];
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}
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// User piece
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$sql = "select acl_rights from phpgw_acl where acl_appname='$appname'";
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$sql .= " and (acl_location in ('$location','everywhere')) and ";
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$sql .= "((acl_account_type = 'u' and acl_account = ".$user_id.")";
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// Group piece
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$sql .= " or (acl_account_type='g' and acl_account in (0"; // group 0 covers all users
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$memberships = $phpgw->accounts->read_group_names();
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if (is_array($memberships) && count($memberships) > 0){
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for ($idx = 0; $idx < count($memberships); ++$idx){
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$sql .= ",".$memberships[$idx][0];
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}
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}
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$sql .= ")))";
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$rights = 0;
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$this->db->query($sql ,__LINE__,__FILE__);
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if ($this->db->num_rows() == 0 && $phpgw_info["server"]["acl_default"] != "deny"){ return True; }
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while ($this->db->next_record()) {
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if ($this->db->f("acl_rights") == 0){ return False; }
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$rights |= $this->db->f("acl_rights");
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}
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return $rights;
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}
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function check($location, $required, $appname = False, $user_id = ""){
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global $phpgw, $phpgw_info;
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$rights = $this->get_rights($location,$appname, $user_id);
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return !!($rights & $required);
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}
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function get_specific_rights($location, $appname = False, $id = "", $id_type = "u"){
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global $phpgw, $phpgw_info;
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if ($appname == False){
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$appname = $phpgw_info["flags"]["currentapp"];
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}
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if($id == "") {
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$id = $phpgw_info["user"]["account_id"];
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}
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// User piece
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$sql = "select acl_rights from phpgw_acl where acl_appname='$appname'";
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$sql .= " and acl_location = '$location' and ";
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$sql .= "acl_account_type = '".$id_type."' and acl_account = ".$id;
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$this->db->query($sql ,__LINE__,__FILE__);
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$rights = 0;
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if ($this->db->num_rows() == 0 && $phpgw_info["server"]["acl_default"] != "deny"){ return True; }
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while ($this->db->next_record()) {
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if ($this->db->f("acl_rights") == 0){ return False; }
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$rights |= $this->db->f("acl_rights");
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}
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return $rights;
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}
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function check_specific($location, $required, $appname = False, $id = "", $id_type = "u"){
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global $phpgw, $phpgw_info;
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$rights = $this->get_specific_rights($location,$appname, $id, $id_type);
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return !!($rights & $required);
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}
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function add($app, $location, $id, $id_type, $rights){
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$sql = "insert into phpgw_acl (acl_appname, acl_location, acl_account, acl_account_type, acl_rights)";
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$sql .= " values('".$app."', '".$location."', ".$id.", '".$id_type."', ".$rights.")";
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$this->db->query($sql ,__LINE__,__FILE__);
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return True;
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}
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function delete($app, $location, $id, $id_type){
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$sql = "delete from phpgw_acl where acl_appname like '".$app."'"
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. " and acl_location like '".$location."' and "
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. " acl_account_type = '".$id_type."' and acl_account = ".$id;
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$this->db->query($sql ,__LINE__,__FILE__);
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return $this->db->num_rows();
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}
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function replace($app, $location, $id, $id_type, $rights){
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$this->delete($app, $location, $id, $id_type);
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$this->add($app, $location, $id, $id_type, $rights);
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return True;
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}
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function get_app_list_for_id($location, $required, $id = "", $id_type = "u"){
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global $phpgw, $phpgw_info;
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if ($id == ""){ $id = $phpgw_info["user"]["account_id"]; }
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$sql = "select acl_appname, acl_rights from phpgw_acl where acl_location = '$location' and ";
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$sql .= "acl_account_type = '".$id_type."' and acl_account = ".$id;
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$this->db->query($sql ,__LINE__,__FILE__);
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$rights = 0;
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if ($this->db->num_rows() == 0 ){ return False; }
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while ($this->db->next_record()) {
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if ($this->db->f("acl_rights") == 0){ return False; }
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$rights |= $this->db->f("acl_rights");
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if (!!($rights & $required) == True){
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$apps[] = $this->db->f("acl_appname");
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}
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}
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return $apps;
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}
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function get_location_list($app, $required){
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global $phpgw, $phpgw_info;
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// User piece
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$sql = "select acl_location, acl_rights from phpgw_acl where acl_appname = '$app' ";
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$sql .= " and ((acl_account_type = 'u' and acl_account = '".$phpgw_info["user"]["account_id"]."')";
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// Group piece
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$sql .= " or (acl_account_type='g' and acl_account in (0"; // group 0 covers all users
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$memberships = $phpgw->accounts->read_group_names();
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if (is_array($memberships) && count($memberships) > 0){
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for ($idx = 0; $idx < count($memberships); ++$idx){
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$sql .= ",".$memberships[$idx][0];
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}
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}
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$sql .= ")))";
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$this->db->query($sql ,__LINE__,__FILE__);
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$rights = 0;
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if ($this->db->num_rows() == 0 ){ return False; }
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while ($this->db->next_record()) {
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if ($this->db->f("acl_rights") == 0){ return False; }
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$rights |= $this->db->f("acl_rights");
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if (!!($rights & $required) == True){
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$locations[] = $this->db->f("acl_location");
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}else{
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return False;
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}
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}
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return $locations;
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}
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function get_location_list_for_id($app, $required, $id_type = "", $id = ""){
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global $phpgw, $phpgw_info;
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if ($id == ""){ $id = $phpgw_info["user"]["account_id"]; }
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if ($id_type == ""){ $id_type = "u"; }
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$sql = "select acl_location, acl_rights from phpgw_acl where acl_appname = '$app' and ";
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$sql .= "acl_account_type = '".$id_type."' and acl_account = ".$id;
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$this->db->query($sql ,__LINE__,__FILE__);
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$rights = 0;
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if ($this->db->num_rows() == 0 ){ return False; }
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while ($this->db->next_record()) {
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if ($this->db->f("acl_rights") == 0){ return False; }
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$rights |= $this->db->f("acl_rights");
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if (!!($rights & $required) == True){
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$locations[] = $this->db->f("acl_location");
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}else{
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return False;
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}
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}
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return $locations;
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}
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} //end of acl class
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?>
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