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<?php
// File roles.inc.php / ibWebAdmin
// Purpose functions working with roles, included from user.php
// Author Lutz Brueckner <irie@gmx.de>
// Copyright (c) 2000, 2001, 2002, 2003, 2004 by Lutz Brueckner,
// published under the terms of the GNU General Public Licence v.2,
// see file LICENCE for details
// Created <02/05/26 11:29:40 lb>
//
// $Id: roles.inc.php,v 1.5 2004/02/04 17:43:16 lbrueckner Exp $
//
// create a role called $name
//
function create_role($name) {
global $dbhandle, $roles, $s_login;
global $ib_error, $lsql;
$name = strtoupper($name);
$lsql = 'CREATE ROLE '.$name;
if (DEBUG) add_debug('lsql', __FILE__, __LINE__);
if (!@ibase_query($dbhandle, $lsql)) {
$ib_error = ibase_errmsg();
}
if (empty($ib_error)) {
$roles[$name]['owner'] = $s_login['user'];
$roles[$name]['members'] = array();
return TRUE;
}
else {
return FALSE;
}
}
//
// drop the role $name off the database
//
function drop_role($name) {
global $roles, $dbhandle;
global $ib_error, $lsql;
$lsql = 'DROP ROLE '.$name;
if (DEBUG) add_debug('lsql', __FILE__, __LINE__);
if (!@ibase_query($dbhandle, $lsql)) {
$ib_error = ibase_errmsg();
return FALSE;
}
else {
unset($roles[$name]);
return TRUE;
}
}
//
// grant a role to an user
//
function grant_role_to_user($role, $user) {
global $dbhandle, $roles;
global $ib_error, $lsql;
$user = strtoupper($user);
$lsql = 'GRANT '.$role.' TO '.$user;
if (DEBUG) add_debug('lsql', __FILE__, __LINE__);
if (!@ibase_query($dbhandle, $lsql)) {
$ib_error = ibase_errmsg();
}
if (empty($ib_error)) {
$roles[$role]['members'][] = $user;
return TRUE;
}
else {
return FALSE;
}
}
//
// revoke a role from an user
//
function revoke_role_from_user($role, $user) {
global $dbhandle, $roles;
global $ib_error, $lsql;
$user = strtoupper($user);
$lsql = 'REVOKE '.$role.' FROM '.$user;
if (DEBUG) add_debug('lsql', __FILE__, __LINE__);
if (!@ibase_query($dbhandle, $lsql)) {
$ib_error = ibase_errmsg();
}
if (empty($ib_error) &&
($idx = array_search($user, $roles[$role]['members'])) !== FALSE) {
unset($roles[$role]['members'][$idx]);
return TRUE;
}
else {
return FALSE;
}
}
//
// return an array with the properties of the defined indeces
//
function get_roles() {
global $dbhandle;
$sql = 'SELECT R.RDB$ROLE_NAME AS NAME,'
.' R.RDB$OWNER_NAME AS OWNER,'
.' P.RDB$USER AS MEMBER'
.' FROM RDB$ROLES R'
.' LEFT JOIN RDB$USER_PRIVILEGES P'
.' ON R.RDB$ROLE_NAME=P.RDB$RELATION_NAME'
." AND P.RDB\$PRIVILEGE='M'"
.'ORDER BY R.RDB$ROLE_NAME';
$res = ibase_query($dbhandle, $sql) or ib_error();
$roles = array();
$lastone = '';
while ($obj = ibase_fetch_object($res)) {
$rname = trim($obj->NAME);
$member = (isset($obj->MEMBER)) ? trim($obj->MEMBER) : '';
if ($rname == $lastone) {
$roles[$rname]['members'][] = $member;
continue;
}
$roles[$rname]['owner'] = trim($obj->OWNER);
$roles[$rname]['members'] = (!empty($member)) ? array($member) : array();
$lastone = $rname;
}
return $roles;
}
//
// output the options for the role selectlist
//
function build_roles_options(&$roles, $selected) {
global $s_login;
echo "<option>\n";
foreach($roles as $name => $role) {
if ($role['owner'] != $s_login['user'] && $s_login['user'] != 'SYSDBA') {
continue;
}
if ($name == $selected) {
echo '<option selected> '.$name."\n";
} else
echo '<option> '.$name."\n";
}
}
?>
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