egroupware_official/admin/inc/class.admin_acl.inc.php

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<?php
/**
* EGroupware: Admin ACL
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*
* @link http://www.egroupware.org
* @author Ralf Becker <rb@stylite.de>
* @package admin
* @copyright (c) 2013 by Ralf Becker <rb@stylite.de>
* @license http://opensource.org/licenses/gpl-license.php GPL - GNU General Public License
* @version $Id$
*/
/**
* UI for admin ACL
*
* Will also be extended by preferences_acl for user ACL
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*/
class admin_acl
{
/**
* Methods callable via menuaction
* @var array
*/
public $public_functions = array(
'index' => true,
);
/**
* Reference to global acl class (instanciated for current user)
*
* @var acl
*/
protected $acl;
/**
* Constructor
*/
public function __construct()
{
$this->acl = $GLOBALS['egw']->acl;
}
/**
* Save run rights and refresh opener
*
* @param array $content
*/
protected function save_run_rights(array $content)
{
$old_apps = array_keys($this->acl->get_user_applications($content['acl_account'], false, false));
// add new apps
$added_apps = array_diff($content['apps'], $old_apps);
foreach($added_apps as $app)
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{
$this->acl->add_repository($app, 'run', $content['acl_account'], 1);
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}
// remove no longer checked apps
$removed_apps = array_diff($old_apps, $content['apps']);
$deleted_ids = array();
foreach($removed_apps as $app)
{
$this->acl->delete_repository($app, 'run', $content['acl_account']);
$deleted_ids[] = $app.':'.$content['acl_account'].':run';
}
//error_log(__METHOD__."() apps=".array2string($content['apps']).", old_apps=".array2string($old_apps).", added_apps=".array2string($added_apps).", removed_apps=".array2string($removed_apps));
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if (!$added_apps && !$removed_apps)
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{
// nothing changed --> nothing to do/notify
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}
elseif (!$old_apps)
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{
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egw_framework::refresh_opener(lang('ACL added.'), 'admin', null, 'add');
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}
elseif (!$added_apps)
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{
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egw_framework::refresh_opener(lang('ACL deleted.'), 'admin', $deleted_ids, 'delete');
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}
else
{
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egw_framework::refresh_opener(lang('ACL updated.'), 'admin', null, 'edit');
}
}
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/**
* Save rights and refresh opener
*
* @param array $content
*/
protected function save_rights(array $content)
{
// assamble rights again
$rights = (int)$content['preserve_rights'];
foreach($content['acl'] as $right)
{
$rights |= $right;
}
$id = !empty($content['id']) ? $content['id'] :
$content['acl_appname'].':'.$content['acl_account'].':'.$content['acl_location'];
//error_log(__METHOD__."() id=$id, acl=".array2string($content['acl'])." --> rights=$rights");
if ($this->acl->get_specific_rights_for_account($content['acl_account'], $content['acl_location'], $content['acl_appname']) == $rights)
{
// nothing changed --> nothing to do
}
elseif (!$rights) // all rights removed --> delete it
{
$this->acl->delete_repository($content['acl_appname'], $content['acl_location'], $content['acl_account']);
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egw_framework::refresh_opener(lang('ACL deleted.'), 'admin', $id, 'delete');
}
else
{
$this->acl->add_repository($content['acl_appname'], $content['acl_location'], $content['acl_account'], $rights);
if ($content['id'])
{
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egw_framework::refresh_opener(lang('ACL updated.'), 'admin', $id, 'edit');
}
else
{
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egw_framework::refresh_opener(lang('ACL added.'), 'admin', $id, 'add');
}
}
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}
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/**
* Callback for nextmatch to fetch acl
*
* @param array $query
* @param array &$rows=null
* @return int total number of rows available
*/
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public static function get_rows(array $query, array &$rows=null)
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{
$so_sql = new so_sql('phpgwapi', acl::TABLE, null, '', true);
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// client queries destinct rows by their row-id
if (isset($query['col_filter']['id']))
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{
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$query['col_filter'][] = $GLOBALS['egw']->db->concat('acl_appname',"':'",'acl_account',"':'",'acl_location').
' IN ('.implode(',', array_map(array($GLOBALS['egw']->db, 'quote'), (array)$query['col_filter']['id'])).')';
unset($query['col_filter']['id']);
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}
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else
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{
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$memberships = $GLOBALS['egw']->accounts->memberships($query['account_id'], true);
$memberships[] = $query['account_id'];
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egw_cache::setSession(__CLASS__, 'state', array(
'account_id' => $query['account_id'],
'filter' => $query['filter'],
'acl_appname' => $query['filter2'],
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));
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if ($GLOBALS['egw_info']['user']['preferences']['admin']['acl_filter'] != $query['filter'])
{
$GLOBALS['egw']->preferences->add('admin', 'acl_filter', $query['filter']);
$GLOBALS['egw']->preferences->save_repository(false,'user',false);
}
switch($query['filter'])
{
case 'run':
$query['col_filter']['acl_location'] = 'run';
$query['col_filter']['acl_account'] = $memberships;
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break;
default:
case 'other':
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//$query['col_filter'][] = "acl_location!='run'";
// remove everything not an account-id in location, like category based acl
if ($GLOBALS['egw']->db->Type == 'mysql')
{
$query['col_filter'][] = "acl_location REGEXP '^-?[0-9]+$'";
}
else
{
$query['col_filter'][] = "acl_location SIMILAR TO '-?[0-9]+'";
}
// get apps not using group-acl (eg. Addressbook) or using it only partialy (eg. InfoLog)
$not_enum_group_acls = $GLOBALS['egw']->hooks->process('not_enum_group_acls', array(), true);
//error_log(__METHOD__."(filter=$query[filter]) not_enum_group_acl=".array2string($not_enum_group_acls));
if ($not_enum_group_acls)
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{
$sql = '(CASE acl_appname';
foreach($not_enum_group_acls as $app => $groups)
{
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if ($groups === true)
{
$check = $query['account_id'];
}
else
{
$check = array_diff($memberships, $groups);
//error_log(__METHOD__."() app=$app, array_diff(memberships=".array2string($memberships).", groups=".array2string($groups).")=".array2string($check));
if (!$check) continue; // would give sql error otherwise!
}
$sql .= ' WHEN '.$GLOBALS['egw']->db->quote($app).' THEN '.$GLOBALS['egw']->db->expression(acl::TABLE, array(
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'acl_account' => $check,
));
}
$sql .= ' ELSE ';
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}
$sql .= $GLOBALS['egw']->db->expression(acl::TABLE, array(
'acl_account' => $memberships,
));
if ($not_enum_group_acls) $sql .= ' END)';
$query['col_filter'][] = $sql;
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break;
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case 'own':
$query['col_filter']['acl_location'] = $memberships;
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break;
}
// do NOT list group-memberships and other non-ACL stuff here
$query['col_filter']['acl_appname'] = $query['filter2'];
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if (empty($query['col_filter']['acl_appname']) && $query['filter'] != 'run')
{
//$query['col_filter'][] = "NOT acl_appname IN ('phpgw_group','sqlfs')";
$query['col_filter']['acl_appname'] = array_keys($query['acl_rights']);
}
}
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$readonlys = array();
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$total = $so_sql->get_rows($query, $rows, $readonlys);
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foreach($rows as &$row)
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{
// generate a row-id
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$row['id'] = $row['acl_appname'].':'.$row['acl_account'].':'.$row['acl_location'];
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if ($row['acl_location'] == 'run')
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{
$row['acl1'] = lang('run');
}
else
{
if ($app !== $row['acl_appname']) translation::add_app($row['app_name']);
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foreach($query['acl_rights'][$row['acl_appname']] as $val => $label)
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{
if ($row['acl_rights'] & $val)
{
$row['acl'.$val] = lang($label);
}
}
}
if (!self::check_access($row['acl_account'], $row['acl_location'], false)) // false: do NOT throw an exception!
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{
$row['class'] = 'rowNoEdit';
}
//error_log(__METHOD__."() $n: ".array2string($row));
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}
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//error_log(__METHOD__."(".array2string($query).") returning ".$total);
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return $total;
}
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/**
* Check if current user has access to ACL setting of a given location
*
* @param int $account_id numeric account-id
* @param int|string $location=null numeric account-id or "run"
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* @param boolean $throw=true if true, throw an exception if no access, instead of just returning false
* @return boolean true if access is granted, false if notification_bo
* @throws egw_exception_no_permission
*/
public static function check_access($account_id, $location=null, $throw=true)
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{
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static $admin_access=null;
static $own_access=null;
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if (is_null($admin_access))
{
$admin_access = isset($GLOBALS['egw_info']['user']['apps']['admin']) &&
!$GLOBALS['egw']->acl->check('account_access', 64, 'admin'); // ! because this denies access!
$own_access = $admin_access || isset($GLOBALS['egw_info']['user']['apps']['preferences']);
}
if (!(int)$account_id || !((int)$account_id == (int)$GLOBALS['egw_info']['user']['account_id'] && $location !== 'run' ?
$own_access : $admin_access))
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{
if ($throw) throw new egw_exception_no_permission(lang('Permission denied!!!'));
return false;
}
return true;
}
/**
* Get the list of applications allowed for the given user
*
* The list of applications is added to the json response
*
* @param int $account_id
*/
public static function ajax_get_app_list($account_id)
{
$list = array();
if(self::check_access((int)$account_id,'run',false))
{
$list = array_keys($GLOBALS['egw']->acl->get_user_applications((int)$account_id,false,false));
}
egw_json_response::get()->data($list);
}
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/**
* Change (add, modify, delete) an ACL entry
*
* Checks access and throws an exception, if a change is attempted without proper access
*
* @param string|array $ids "$app:$account:$location" string used as row-id in list
* @param int $rights=null null to delete, or new rights
* @throws egw_exception_no_permission
*/
public static function ajax_change_acl($ids, $rights=null)
{
try {
foreach((array)$ids as $id)
{
list($app, $account_id, $location) = explode(':', $id, 3);
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self::check_access($account_id, $location); // throws exception, if no rights
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$acl = $GLOBALS['egw']->acl;
if (!(int)$rights) // this also handles taking away all rights as delete
{
$acl->delete_repository($app, $location, $account_id);
}
else
{
$acl->add_repository($app, $location, $account_id, $rights);
}
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}
if (!(int)$rights)
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{
if (count($ids) > 1)
{
$msg = lang('%1 ACL entries deleted.', count($ids));
}
else
{
$msg = lang('ACL entry deleted.');
}
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}
else
{
$msg = lang('ACL updated');
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}
egw_json_response::get()->data(array(
'msg' => $msg,
'ids' => $ids,
'type' => !(int)$rights ? 'delete' : 'add',
));
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}
catch (Exception $e) {
egw_json_response::get()->call('egw.message', $e->getMessage(), 'error');
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}
}
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/**
* New index page
*
* @param array $content
*/
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public function index(array $content=null)
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{
$tpl = new etemplate_new('admin.acl');
$content = array();
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$account_id = isset($_GET['account_id']) && (int)$_GET['account_id'] ?
(int)$_GET['account_id'] : $GLOBALS['egw_info']['user']['account_id'];
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$content['nm'] = array(
'get_rows' => 'admin_acl::get_rows',
'no_cat' => true,
'filter' => !empty($_GET['acl_filter']) ? $_GET['acl_filter'] :
($GLOBALS['egw_info']['flags']['currentapp'] != 'admin' ? 'other' :
$GLOBALS['egw_info']['user']['preferences']['admin']['acl_filter']),
'filter2' => !empty($_GET['acl_app']) ? $_GET['acl_app'] : '',
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'lettersearch' => false,
'header_row' => 'admin.acl.add',
'order' => 'acl_appname',
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'sort' => 'ASC',
'row_id' => 'id',
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'account_id' => $account_id,
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'actions' => self::get_actions(),
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'acl_rights' => $GLOBALS['egw']->hooks->process(array(
'location' => 'acl_rights',
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'owner' => $account_id,
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), array(), true),
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);
$user = common::grab_owner_name($content['nm']['account_id']);
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$sel_options = array(
'filter' => array(
'other' => lang('Access to %1 data by others', $user),
'own' => lang('%1 access to other data', $user),
'run' => lang('%1 run rights for applications', $user),
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),
'filter2' => array(
'' => lang('All applications'),
)+etemplate_widget_menupopup::app_options('enabled'),
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);
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$tpl->exec('admin.admin_acl.index', $content, $sel_options);
}
/**
* Get actions for ACL
*
* @return array
*/
static function get_actions()
{
return array(
'edit' => array(
'caption' => 'Edit',
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'default' => true,
'allowOnMultiple' => false,
'disableClass' => 'rowNoEdit',
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'onExecute' => 'javaScript:app.admin.acl',
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),
'add' => array(
'caption' => 'Add',
'disableClass' => 'rowNoEdit',
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'onExecute' => 'javaScript:app.admin.acl',
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),
'delete' => array(
'confirm' => 'Delete this access control',
'caption' => 'Delete',
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'disableClass' => 'rowNoEdit',
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'onExecute' => 'javaScript:app.admin.acl',
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),
);
}
}