ldapsaisie/src/includes/class/class.LSauthMethod_HTTP.php

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<?php
/*******************************************************************************
* Copyright (C) 2007 Easter-eggs
* http://ldapsaisie.labs.libre-entreprise.org
*
* Author: See AUTHORS file in top-level directory.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License version 2
* as published by the Free Software Foundation.
*
* 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
******************************************************************************/
LSsession :: loadLSclass('LSauthMethod_basic');
/**
* HTTP Authentication provider for LSauth
*
* @author Benjamin Renard <brenard@easter-eggs.com>
*/
class LSauthMethod_HTTP extends LSauthMethod_basic {
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public function __construct() {
parent :: __construct();
LSauth :: disableLoginForm();
if (!defined('LSAUTHMETHOD_HTTP_LOGOUT_REMOTE_URL'))
LSauth :: disableLogoutBtn();
return True;
}
/**
* Check Auth Data
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*
* Return authentication data or false
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*
* @retval Array|false Array of authentication data or False
**/
public function getAuthData() {
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if (!defined('LSAUTHMETHOD_HTTP_METHOD')) {
self :: log_debug('No HTTP method defined: use PHP_AUTH as default.');
define('LSAUTHMETHOD_HTTP_METHOD', 'PHP_AUTH');
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}
else {
self :: log_debug('HTTP method to retreive auth data is "'.LSAUTHMETHOD_HTTP_METHOD.'"');
}
switch(constant('LSAUTHMETHOD_HTTP_METHOD')) {
case 'AUTHORIZATION':
if (isset($_SERVER['HTTP_AUTHORIZATION']) && !empty($_SERVER['HTTP_AUTHORIZATION'])) {
$authData = explode(':', base64_decode(substr($_SERVER['HTTP_AUTHORIZATION'], 6)));
if (is_array($authData) && count($authData) == 2) {
$this -> authData = array(
'username' => $authData[0],
'password' => $authData[1],
);
}
return $this -> authData;
}
else
LSerror :: addErrorCode('LSauthMethod_HTTP_01', 'HTTP_AUTHORIZATION');
break;
case 'REMOTE_USER':
if (isset($_SERVER['REMOTE_USER']) && !empty($_SERVER['REMOTE_USER'])) {
$this -> authData = array(
'username' => $_SERVER['REMOTE_USER'],
'password' => false,
);
return $this -> authData;
}
else
LSerror :: addErrorCode('LSauthMethod_HTTP_01', 'REMOTE_USER');
break;
case 'PHP_AUTH':
default:
if (isset($_SERVER['PHP_AUTH_USER']) && !empty($_SERVER['PHP_AUTH_USER'])) {
$this -> authData = array(
'username' => $_SERVER['PHP_AUTH_USER'],
'password' => $_SERVER['PHP_AUTH_PW'],
);
return $this -> authData;
}
else
LSerror :: addErrorCode('LSauthMethod_HTTP_01', 'PHP_AUTH_USER');
}
return;
}
/**
* Check authentication
*
* @retval LSldapObject|false The LSldapObject of the user authificated or false
*/
public function authenticate() {
if ( (defined('LSAUTHMETHOD_HTTP_TRUST_WITHOUT_PASSWORD_CHALLENGE')) && (constant('LSAUTHMETHOD_HTTP_TRUST_WITHOUT_PASSWORD_CHALLENGE') === True)) {
// Return authObject without checking login/password by LDAP auth challenge
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self :: log_debug('Trust HTTP authenticated user without password challenge');
return LSauthMethod :: authenticate();
}
else {
return parent :: authenticate();
}
}
/**
* After logout
*
* This method is run by LSsession after the local session was
* was successfully destroyed.
*
* @retval void
**/
public static function afterLogout() {
if (defined('LSAUTHMETHOD_HTTP_LOGOUT_REMOTE_URL')) {
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self :: log_debug("Logout remote URL configured => redirect user to '".LSAUTHMETHOD_HTTP_LOGOUT_REMOTE_URL."'.");
LSurl :: redirect(LSAUTHMETHOD_HTTP_LOGOUT_REMOTE_URL);
}
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self :: log_debug('No logout remote URL configured');
return true;
}
}
/*
* Error Codes
*/
LSerror :: defineError('LSauthMethod_HTTP_01',
_("LSauthMethod_HTTP : the %{var} environnement variable is missing.")
);