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<?php
/*
This code is part of FusionDirectory (http://www.fusiondirectory.org/)
Copyright (C) 2003-2010 Cajus Pollmeier
Copyright (C) 2011-2016 FusionDirectory
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.
*/
/*!
* \file class_acl.inc
* Source code for Class ACL
*/
/*!
* \brief This class contains all the function needed to manage acl
*/
class acl
{
static function plInfo()
{
return array(
'plShortName' => _('ACL'),
'plDescription' => _('Manage access control lists'),
'plCategory' => array(
'acl' => array(
'description' => _('ACL').' & '._('ACL roles'),
'objectClass' => array('gosaAcl','gosaRole')
)
),
'plObjectType' => array(),
'plProvidedAcls' => array()
);
}
/*!
* \brief Function sort an array by elements priority
*
* \param Array $list Array to be sorted
*/
static function sort_by_priority($list)
{
uksort($list,
function ($a, $b)
{
$infos_a = pluglist::pluginInfos(preg_replace('|^[^/]*/|', '', $a));
$infos_b = pluglist::pluginInfos(preg_replace('|^[^/]*/|', '', $b));
$pa = (isset($infos_a['plPriority'])?$infos_a['plPriority']:0);
$pb = (isset($infos_b['plPriority'])?$infos_b['plPriority']:0);
if ($pa == $pb) {
return 0;
}
return ($pa < $pb ? -1 : 1);
}
);
return $list;
}
/*!
* \brief Explode a role
*
* \param string $acl ACL to be exploded
*/
static function explodeRole($role)
{
if (!is_array($role)) {
$role = array($role);
}
unset($role['count']);
$result = array();
foreach ($role as $aclTemplate) {
$list = explode(':', $aclTemplate, 2);
$result[$list[0]] = static::extractACL($list[1]);
}
ksort($result);
return $result;
}
/*!
* \brief Explode an acl
*
* \param string $acl ACL to be exploded
*/
static function explodeACL($acl)
{
$list = explode(':', $acl);
if (count($list) == 5) {
list($index, $type,$role,$members,$filter) = $list;
$filter = base64_decode($filter);
} else {
$filter = "";
list($index, $type,$role,$members) = $list;
}
$a = array( $index => array(
'type' => $type,
'filter' => $filter,
'members' => acl::extractMembers($members),
'acl' => base64_decode($role),
));
/* Handle unknown types */
if (!in_array($type, array('subtree', 'base'))) {
msg_dialog::display(_("Internal error"), sprintf(_("Unkown ACL type '%s'!\nYou might need to run \"fusiondirectory-setup --migrate-acls\" to migrate your acls to the new format."), $type), ERROR_DIALOG);
$a = array();
}
return $a;
}
/*!
* \brief Extract members of an acl
*
* \param $acl The acl to be extracted members part
*
* \return an array with members
*/
static function extractMembers($ms)
{
global $config;
$a = array();
/* Seperate by ',' and place it in an array */
$ma = explode(',', $ms);
/* Decode dn's, fill with informations from LDAP */
$ldap = $config->get_ldap_link();
foreach ($ma as $memberdn) {
// Check for wildcard here
$dn = base64_decode($memberdn);
if ($dn != '*') {
if (empty($dn)) {
trigger_error('Empty dn found in members of ACL');
continue;
}
$ldap->cat($dn, array('cn', 'objectClass', 'description', 'uid'));
/* Found entry... */
if ($ldap->count()) {
$attrs = $ldap->fetch();
if (in_array_ics('inetOrgPerson', $attrs['objectClass'])) {
$a['U:'.$dn] = $attrs['cn'][0].' ['.$attrs['uid'][0].']';
} elseif (in_array_ics('organizationalRole', $attrs['objectClass'])) {
$a['R:'.$dn] = $attrs['cn'][0];
if (isset($attrs['description'][0])) {
$a['R:'.$dn] .= ' ['.$attrs['description'][0].']';
}
} else {
$a['G:'.$dn] = $attrs['cn'][0];
if (isset($attrs['description'][0])) {
$a['G:'.$dn] .= ' ['.$attrs['description'][0].']';
}
}
/* ... or not */
} else {
$a['U:'.$dn] = sprintf(_("Unknown entry '%s'!"), $dn);
}
} else {
$a['G:*'] = sprintf(_("All users"));
}
}
return $a;
}
/*!
* \brief Extract an acl
*
* \param string $acl The acl to be extracted
*/
static function extractACL($acl)
{
/* Rip acl off the string, seperate by ',' and place it in an array */
$as = preg_replace('/^[^:]+:[^:]+:[^:]*:([^:]*).*$/', '\1', $acl);
$aa = explode(',', $as);
$a = array();
/* Dis-assemble single ACLs */
foreach ($aa as $sacl) {
/* Dis-assemble field ACLs */
$ao = explode('#', $sacl);
$gobject = "";
foreach ($ao as $idx => $ssacl) {
/* First is department with global acl */
$object = preg_replace('/^([^;]+);.*$/', '\1', $ssacl);
$gacl = preg_replace('/^[^;]+;(.*)$/', '\1', $ssacl);
if ($idx == 0) {
/* Create hash for this object */
$gobject = $object;
$a[$gobject] = array();
/* Append ACL if set */
if ($gacl != "") {
$a[$gobject] = array($gacl);
}
} else {
/* All other entries get appended... */
list($field, $facl) = explode(';', $ssacl);
$a[$gobject][$field] = $facl;
}
}
}
return $a;
}
}
?>
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